D30260.1792583636.diff
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	Index: sys/netinet/libalias/alias.h
	===================================================================
	--- sys/netinet/libalias/alias.h
	+++ sys/netinet/libalias/alias.h
	@@ -37,10 +37,10 @@
	*/

	#ifndef _ALIAS_H_
	-#define _ALIAS_H_
	+#define _ALIAS_H_

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>

	#define LIBALIAS_BUF_SIZE 128
	@@ -48,8 +48,8 @@
	/*
	* The kernel version of libalias does not support these features.
	*/
	-#define NO_FW_PUNCH
	-#define NO_USE_SOCKETS
	+#define NO_FW_PUNCH
	+#define NO_USE_SOCKETS
	#endif

	/*
	@@ -83,54 +83,60 @@

	/* Initialization and control functions. */
	struct libalias LibAliasInit(struct libalias );
	-void LibAliasSetAddress(struct libalias *, struct in_addr _addr);
	-void LibAliasSetAliasPortRange(struct libalias *la, u_short port_low, u_short port_hi);
	-void LibAliasSetFWBase(struct libalias *, unsigned int _base, unsigned int _num);
	-void LibAliasSetSkinnyPort(struct libalias *, unsigned int _port);
	-unsigned int LibAliasSetMode(struct libalias *, unsigned int _flags, unsigned int _mask);
	-void LibAliasUninit(struct libalias *);
	+void LibAliasSetAddress(struct libalias *, struct in_addr _addr);
	+void LibAliasSetAliasPortRange(struct libalias *la, u_short port_low,
	+ u_short port_hi);
	+void LibAliasSetFWBase(struct libalias *, unsigned int _base,
	+ unsigned int _num);
	+void LibAliasSetSkinnyPort(struct libalias *, unsigned int _port);
	+unsigned int LibAliasSetMode(struct libalias *, unsigned int _flags,
	+ unsigned int _mask);
	+void LibAliasUninit(struct libalias *);

	/* Packet Handling functions. */
	-int LibAliasIn (struct libalias , void _ptr, int _maxpacketsize);
	-int LibAliasOut(struct libalias , void _ptr, int _maxpacketsize);
	-int LibAliasOutTry(struct libalias , void _ptr, int _maxpacketsize, int _create);
	-int LibAliasUnaliasOut(struct libalias , void _ptr, int _maxpacketsize);
	+int LibAliasIn(struct libalias , void _ptr, int _maxpacketsize);
	+int LibAliasOut(struct libalias , void _ptr, int _maxpacketsize);
	+int LibAliasOutTry(struct libalias , void _ptr, int _maxpacketsize,
	+ int _create);
	+int LibAliasUnaliasOut(struct libalias , void _ptr, int _maxpacketsize);

	/* Port and address redirection functions. */

	-int LibAliasAddServer(struct libalias , struct alias_link _lnk,
	- struct in_addr _addr, unsigned short _port);
	-struct alias_link * LibAliasRedirectAddr(struct libalias *, struct in_addr _src_addr,
	- struct in_addr _alias_addr);
	-int LibAliasRedirectDynamic(struct libalias , struct alias_link _lnk);
	-void LibAliasRedirectDelete(struct libalias , struct alias_link _lnk);
	-struct alias_link * LibAliasRedirectPort(struct libalias *, struct in_addr _src_addr,
	- unsigned short _src_port, struct in_addr _dst_addr,
	- unsigned short _dst_port, struct in_addr _alias_addr,
	- unsigned short _alias_port, unsigned char _proto);
	-struct alias_link * LibAliasRedirectProto(struct libalias *, struct in_addr _src_addr,
	- struct in_addr _dst_addr, struct in_addr _alias_addr,
	- unsigned char _proto);
	+int LibAliasAddServer(struct libalias , struct alias_link _lnk,
	+ struct in_addr _addr, unsigned short _port);
	+struct alias_link LibAliasRedirectAddr(struct libalias ,
	+ struct in_addr _src_addr, struct in_addr _alias_addr);
	+int LibAliasRedirectDynamic(struct libalias , struct alias_link _lnk);
	+void LibAliasRedirectDelete(struct libalias , struct alias_link _lnk);
	+struct alias_link LibAliasRedirectPort(struct libalias ,
	+ struct in_addr _src_addr, unsigned short _src_port,
	+ struct in_addr _dst_addr, unsigned short _dst_port,
	+ struct in_addr _alias_addr, unsigned short _alias_port,
	+ unsigned char _proto);
	+struct alias_link LibAliasRedirectProto(struct libalias ,
	+ struct in_addr _src_addr, struct in_addr _dst_addr,
	+ struct in_addr _alias_addr, unsigned char _proto);

	/* Fragment Handling functions. */
	-void LibAliasFragmentIn(struct libalias , void _ptr, void *_ptr_fragment);
	-void LibAliasGetFragment(struct libalias , void *_ptr);
	-int LibAliasSaveFragment(struct libalias , void _ptr);
	+void LibAliasFragmentIn(struct libalias , void _ptr, void *_ptr_fragment);
	+void LibAliasGetFragment(struct libalias , void *_ptr);
	+int LibAliasSaveFragment(struct libalias , void _ptr);

	/* Miscellaneous functions. */
	-unsigned short LibAliasInternetChecksum(struct libalias , unsigned short _ptr, int _nbytes);
	-void LibAliasSetTarget(struct libalias *, struct in_addr _target_addr);
	+unsigned short LibAliasInternetChecksum(struct libalias , unsigned short _ptr,
	+ int _nbytes);
	+void LibAliasSetTarget(struct libalias *, struct in_addr _target_addr);

	/* Transparent proxying routines. */
	-int LibAliasProxyRule(struct libalias , const char _cmd);
	+int LibAliasProxyRule(struct libalias , const char _cmd);

	/* Module handling API */
	-int LibAliasLoadModule(char *);
	-int LibAliasUnLoadAllModule(void);
	-int LibAliasRefreshModules(void);
	+int LibAliasLoadModule(char *);
	+int LibAliasUnLoadAllModule(void);
	+int LibAliasRefreshModules(void);

	/* Mbuf helper function. */
	-struct mbuf m_megapullup(struct mbuf , int);
	+struct mbuf m_megapullup(struct mbuf , int);

	/*
	* Mode flags and other constants.
	@@ -142,13 +148,13 @@
	* If PKT_ALIAS_LOG is set, a message will be printed to /var/log/alias.log
	* every time a link is created or deleted. This is useful for debugging.
	*/
	-#define PKT_ALIAS_LOG 0x01
	+#define PKT_ALIAS_LOG 0x01

	/*
	* If PKT_ALIAS_DENY_INCOMING is set, then incoming connections (e.g. to ftp,
	* telnet or web servers will be prevented by the aliasing mechanism.
	*/
	-#define PKT_ALIAS_DENY_INCOMING 0x02
	+#define PKT_ALIAS_DENY_INCOMING 0x02

	/*
	* If PKT_ALIAS_SAME_PORTS is set, packets will be attempted sent from the
	@@ -157,7 +163,7 @@
	* at all). This mode bit is set by PacketAliasInit(), so it is a default
	* mode of operation.
	*/
	-#define PKT_ALIAS_SAME_PORTS 0x04
	+#define PKT_ALIAS_SAME_PORTS 0x04

	/*
	* If PKT_ALIAS_USE_SOCKETS is set, then when partially specified links (e.g.
	@@ -168,7 +174,7 @@
	* a default mode of operation.
	*/
	#ifndef NO_USE_SOCKETS
	-#define PKT_ALIAS_USE_SOCKETS 0x08
	+#define PKT_ALIAS_USE_SOCKETS 0x08
	#endif
	/*-
	* If PKT_ALIAS_UNREGISTERED_ONLY is set, then only packets with
	@@ -179,7 +185,7 @@
	* 172.16.0.0 -> 172.31.255.255
	* 192.168.0.0 -> 192.168.255.255
	*/
	-#define PKT_ALIAS_UNREGISTERED_ONLY 0x10
	+#define PKT_ALIAS_UNREGISTERED_ONLY 0x10

	/*
	* If PKT_ALIAS_RESET_ON_ADDR_CHANGE is set, then the table of dynamic
	@@ -188,19 +194,19 @@
	* unchanged by this function call, then the table of dynamic aliasing links
	* will be left intact. This bit is set after a call to PacketAliasInit().
	*/
	-#define PKT_ALIAS_RESET_ON_ADDR_CHANGE 0x20
	+#define PKT_ALIAS_RESET_ON_ADDR_CHANGE 0x20

	/*
	* If PKT_ALIAS_PROXY_ONLY is set, then NAT will be disabled and only
	* transparent proxying is performed.
	*/
	-#define PKT_ALIAS_PROXY_ONLY 0x40
	+#define PKT_ALIAS_PROXY_ONLY 0x40

	/*
	* If PKT_ALIAS_REVERSE is set, the actions of PacketAliasIn() and
	* PacketAliasOut() are reversed.
	*/
	-#define PKT_ALIAS_REVERSE 0x80
	+#define PKT_ALIAS_REVERSE 0x80

	#ifndef NO_FW_PUNCH
	/*
	@@ -210,14 +216,14 @@
	* PacketAliasSetFWBase(). The hole will be attached to that
	* particular alias_link, so when the link goes away the hole is deleted.
	*/
	-#define PKT_ALIAS_PUNCH_FW 0x100
	+#define PKT_ALIAS_PUNCH_FW 0x100
	#endif

	/*
	* If PKT_ALIAS_SKIP_GLOBAL is set, nat instance is not checked for matching
	* states in 'ipfw nat global' rule.
	*/
	-#define PKT_ALIAS_SKIP_GLOBAL 0x200
	+#define PKT_ALIAS_SKIP_GLOBAL 0x200

	/*
	* Like PKT_ALIAS_UNREGISTERED_ONLY, but includes the RFC 6598
	@@ -225,7 +231,7 @@
	*
	* 100.64.0.0 -> 100.127.255.255
	*/
	-#define PKT_ALIAS_UNREGISTERED_CGN 0x400
	+#define PKT_ALIAS_UNREGISTERED_CGN 0x400

	/*
	* When this bit is set, UDP uses endpoint-independent mapping (EIM), as per
	@@ -245,15 +251,15 @@
	* connect to each other by port forwarding on the NAT, or tunnelling through
	* an in-between server.
	*/
	-#define PKT_ALIAS_UDP_EIM 0x800
	+#define PKT_ALIAS_UDP_EIM 0x800

	/* Function return codes. */
	-#define PKT_ALIAS_ERROR -1
	-#define PKT_ALIAS_OK 1
	-#define PKT_ALIAS_IGNORED 2
	-#define PKT_ALIAS_UNRESOLVED_FRAGMENT 3
	-#define PKT_ALIAS_FOUND_HEADER_FRAGMENT 4
	+#define PKT_ALIAS_ERROR -1
	+#define PKT_ALIAS_OK 1
	+#define PKT_ALIAS_IGNORED 2
	+#define PKT_ALIAS_UNRESOLVED_FRAGMENT 3
	+#define PKT_ALIAS_FOUND_HEADER_FRAGMENT 4

	-#endif /* !_ALIAS_H_ */
	+#endif /* !_ALIAS_H_ */

	/* lint -restore */
	Index: sys/netinet/libalias/alias.c
	===================================================================
	--- sys/netinet/libalias/alias.c
	+++ sys/netinet/libalias/alias.c
	@@ -118,16 +118,17 @@
	#include <sys/sysctl.h>
	#else
	#include <sys/types.h>
	-#include <stdlib.h>
	-#include <stdio.h>
	+
	#include <ctype.h>
	#include <dlfcn.h>
	#include <errno.h>
	+#include <stdio.h>
	+#include <stdlib.h>
	#include <string.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/ip_icmp.h>
	#include <netinet/tcp.h>
	@@ -139,6 +140,7 @@
	#include <netinet/libalias/alias_mod.h>
	#else
	#include <err.h>
	+
	#include "alias.h"
	#include "alias_local.h"
	#include "alias_mod.h"
	@@ -183,9 +185,9 @@
	*/

	/* Local prototypes */
	-static void TcpMonitorIn(uint16_t, struct alias_link *);
	+static void TcpMonitorIn(uint16_t, struct alias_link *);

	-static void TcpMonitorOut(uint16_t, struct alias_link *);
	+static void TcpMonitorOut(uint16_t, struct alias_link *);

	static void
	TcpMonitorIn(uint16_t th_flags, struct alias_link *lnk)
	@@ -261,25 +263,24 @@
	*/

	/* Local prototypes */
	-static int IcmpAliasIn1(struct libalias , struct ip );
	-static int IcmpAliasIn2(struct libalias , struct ip );
	-static int IcmpAliasIn(struct libalias , struct ip );
	+static int IcmpAliasIn1(struct libalias , struct ip );
	+static int IcmpAliasIn2(struct libalias , struct ip );
	+static int IcmpAliasIn(struct libalias , struct ip );

	-static int IcmpAliasOut1(struct libalias , struct ip , int create);
	-static int IcmpAliasOut2(struct libalias , struct ip );
	-static int IcmpAliasOut(struct libalias , struct ip , int create);
	+static int IcmpAliasOut1(struct libalias , struct ip , int create);
	+static int IcmpAliasOut2(struct libalias , struct ip );
	+static int IcmpAliasOut(struct libalias , struct ip , int create);

	-static int ProtoAliasIn(struct libalias *la, struct in_addr ip_src,
	- struct ip pip, u_char ip_p, u_short ip_sum);
	-static int ProtoAliasOut(struct libalias la, struct ip pip,
	- struct in_addr ip_dst, u_char ip_p, u_short *ip_sum,
	- int create);
	+static int ProtoAliasIn(struct libalias *la, struct in_addr ip_src,
	+ struct ip pip, u_char ip_p, u_short ip_sum);
	+static int ProtoAliasOut(struct libalias la, struct ip pip,
	+ struct in_addr ip_dst, u_char ip_p, u_short *ip_sum, int create);

	-static int UdpAliasIn(struct libalias , struct ip );
	-static int UdpAliasOut(struct libalias , struct ip , int, int create);
	+static int UdpAliasIn(struct libalias , struct ip );
	+static int UdpAliasOut(struct libalias , struct ip , int, int create);

	-static int TcpAliasIn(struct libalias , struct ip );
	-static int TcpAliasOut(struct libalias , struct ip , int, int create);
	+static int TcpAliasIn(struct libalias , struct ip );
	+static int TcpAliasOut(struct libalias , struct ip , int, int create);

	/*
	De-alias incoming echo and timestamp replies.
	@@ -316,8 +317,8 @@
	struct in_addr original_address;

	original_address = GetOriginalAddress(lnk);
	- DifferentialChecksum(&pip->ip_sum,
	- &original_address, &pip->ip_dst, 2);
	+ DifferentialChecksum(&pip->ip_sum, &original_address,
	+ &pip->ip_dst, 2);
	pip->ip_dst = original_address;
	}
	}
	@@ -347,15 +348,13 @@
	ic2 = (struct icmp *)ip_next(ip);

	if (ip->ip_p == IPPROTO_UDP) {
	- ret = FindUdpTcpIn(la, ip->ip_dst, ip->ip_src,
	- ud->uh_dport, ud->uh_sport,
	- IPPROTO_UDP, 0, &lnk);
	+ ret = FindUdpTcpIn(la, ip->ip_dst, ip->ip_src, ud->uh_dport,
	+ ud->uh_sport, IPPROTO_UDP, 0, &lnk);
	if (ret != PKT_ALIAS_OK)
	return (ret);
	} else if (ip->ip_p == IPPROTO_TCP) {
	- ret = FindUdpTcpIn(la, ip->ip_dst, ip->ip_src,
	- tc->th_dport, tc->th_sport,
	- IPPROTO_TCP, 0, &lnk);
	+ ret = FindUdpTcpIn(la, ip->ip_dst, ip->ip_src, tc->th_dport,
	+ tc->th_sport, IPPROTO_TCP, 0, &lnk);
	if (ret != PKT_ALIAS_OK)
	return (ret);
	} else if (ip->ip_p == IPPROTO_ICMP) {
	@@ -391,8 +390,8 @@
	ADJUST_CHECKSUM(accumulate2, ic->icmp_cksum);

	/* Un-alias address in IP header */
	- DifferentialChecksum(&pip->ip_sum,
	- &original_address, &pip->ip_dst, 2);
	+ DifferentialChecksum(&pip->ip_sum, &original_address,
	+ &pip->ip_dst, 2);
	pip->ip_dst = original_address;

	/* Un-alias address and port number of
	@@ -420,8 +419,8 @@
	ADJUST_CHECKSUM(accumulate2, ic->icmp_cksum);

	/* Un-alias address in IP header */
	- DifferentialChecksum(&pip->ip_sum,
	- &original_address, &pip->ip_dst, 2);
	+ DifferentialChecksum(&pip->ip_sum, &original_address,
	+ &pip->ip_dst, 2);
	pip->ip_dst = original_address;

	/* Un-alias address of original IP packet and
	@@ -465,8 +464,7 @@
	case ICMP_SOURCEQUENCH:
	case ICMP_TIMXCEED:
	case ICMP_PARAMPROB:
	- if (dlen < ICMP_ADVLENMIN \|\|
	- dlen < (size_t)ICMP_ADVLEN(ic))
	+ if (dlen < ICMP_ADVLENMIN \|\| dlen < (size_t)ICMP_ADVLEN(ic))
	return (PKT_ALIAS_IGNORED);
	iresult = IcmpAliasIn2(la, pip);
	break;
	@@ -514,8 +512,8 @@
	struct in_addr alias_address;

	alias_address = GetAliasAddress(lnk);
	- DifferentialChecksum(&pip->ip_sum,
	- &alias_address, &pip->ip_src, 2);
	+ DifferentialChecksum(&pip->ip_sum, &alias_address,
	+ &pip->ip_src, 2);
	pip->ip_src = alias_address;
	}
	}
	@@ -545,15 +543,13 @@
	ic2 = (struct icmp *)ip_next(ip);

	if (ip->ip_p == IPPROTO_UDP) {
	- ret = FindUdpTcpOut(la, ip->ip_dst, ip->ip_src,
	- ud->uh_dport, ud->uh_sport,
	- IPPROTO_UDP, 0, &lnk);
	+ ret = FindUdpTcpOut(la, ip->ip_dst, ip->ip_src, ud->uh_dport,
	+ ud->uh_sport, IPPROTO_UDP, 0, &lnk);
	if (ret != PKT_ALIAS_OK)
	return (ret);
	} else if (ip->ip_p == IPPROTO_TCP) {
	- ret = FindUdpTcpOut(la, ip->ip_dst, ip->ip_src,
	- tc->th_dport, tc->th_sport,
	- IPPROTO_TCP, 0, &lnk);
	+ ret = FindUdpTcpOut(la, ip->ip_dst, ip->ip_src, tc->th_dport,
	+ tc->th_sport, IPPROTO_TCP, 0, &lnk);
	if (ret != PKT_ALIAS_OK)
	return (ret);
	} else if (ip->ip_p == IPPROTO_ICMP) {
	@@ -674,8 +670,8 @@
	machine.
	*/
	static int
	-ProtoAliasIn(struct libalias *la, struct in_addr ip_src,
	- struct ip pip, u_char ip_p, u_short ip_sum)
	+ProtoAliasIn(struct libalias la, struct in_addr ip_src, struct ip pip,
	+ u_char ip_p, u_short *ip_sum)
	{
	struct alias_link *lnk;
	int ret;
	@@ -692,8 +688,8 @@
	original_address = GetOriginalAddress(lnk);

	/* Restore original IP address */
	- DifferentialChecksum(ip_sum,
	- &original_address, &pip->ip_dst, 2);
	+ DifferentialChecksum(ip_sum, &original_address, &pip->ip_dst,
	+ 2);
	pip->ip_dst = original_address;
	}
	return (ret);
	@@ -705,8 +701,8 @@
	the source IP address of the packet.
	*/
	static int
	-ProtoAliasOut(struct libalias la, struct ip pip,
	- struct in_addr ip_dst, u_char ip_p, u_short *ip_sum, int create)
	+ProtoAliasOut(struct libalias la, struct ip pip, struct in_addr ip_dst,
	+ u_char ip_p, u_short *ip_sum, int create)
	{
	struct alias_link *lnk;
	int ret;
	@@ -727,14 +723,13 @@
	alias_address = GetAliasAddress(lnk);

	/* Change source address */
	- DifferentialChecksum(ip_sum,
	- &alias_address, &pip->ip_src, 2);
	+ DifferentialChecksum(ip_sum, &alias_address, &pip->ip_src, 2);
	pip->ip_src = alias_address;
	}
	return (ret);
	}

	-#define MF_ISSET(_pip) (ntohs((_pip)->ip_off) & IP_MF)
	+#define MF_ISSET(_pip) (ntohs((_pip)->ip_off) & IP_MF)
	#define FRAG_NO_HDR(_pip) (ntohs((_pip)->ip_off) & IP_OFFMASK)

	static struct udphdr *
	@@ -744,7 +739,8 @@
	size_t dlen;

	#ifdef _KERNEL
	- KASSERT(!FRAG_NO_HDR(pip), ("header-less fragment isn't expected here"));
	+ KASSERT(!FRAG_NO_HDR(pip),
	+ ("header-less fragment isn't expected here"));
	#endif
	dlen = ntohs(pip->ip_len) - (pip->ip_hl << 2);
	if (dlen < sizeof(struct udphdr))
	@@ -768,9 +764,9 @@
	if (ud == NULL)
	return (PKT_ALIAS_IGNORED);

	- ret = FindUdpTcpIn(la, pip->ip_src, pip->ip_dst,
	- ud->uh_sport, ud->uh_dport,
	- IPPROTO_UDP, !(la->packetAliasMode & PKT_ALIAS_PROXY_ONLY), &lnk);
	+ ret = FindUdpTcpIn(la, pip->ip_src, pip->ip_dst, ud->uh_sport,
	+ ud->uh_dport, IPPROTO_UDP,
	+ !(la->packetAliasMode & PKT_ALIAS_PROXY_ONLY), &lnk);
	if (ret != PKT_ALIAS_OK)
	return (ret);
	{
	@@ -781,15 +777,13 @@
	u_short proxy_port;
	int accumulate;
	int error;
	- struct alias_data ad = {
	- .lnk = lnk,
	+ struct alias_data ad = { .lnk = lnk,
	.oaddr = &original_address,
	.aaddr = &alias_address,
	.aport = &alias_port,
	.sport = &ud->uh_sport,
	.dport = &ud->uh_dport,
	- .maxpktsize = 0
	- };
	+ .maxpktsize = 0 };

	alias_address = GetAliasAddress(lnk);
	original_address = GetOriginalAddress(lnk);
	@@ -834,14 +828,14 @@
	ud->uh_sport = proxy_port;

	if (proxy_address.s_addr != 0) {
	- DifferentialChecksum(&pip->ip_sum,
	- &proxy_address, &pip->ip_src, 2);
	+ DifferentialChecksum(&pip->ip_sum, &proxy_address,
	+ &pip->ip_src, 2);
	pip->ip_src = proxy_address;
	}

	/* Restore original IP address */
	- DifferentialChecksum(&pip->ip_sum,
	- &original_address, &pip->ip_dst, 2);
	+ DifferentialChecksum(&pip->ip_sum, &original_address,
	+ &pip->ip_dst, 2);
	pip->ip_dst = original_address;

	return (PKT_ALIAS_OK);
	@@ -894,23 +888,20 @@
	pip->ip_dst = proxy_server_address;
	ud->uh_dport = proxy_server_port;
	}
	- ret = FindUdpTcpOut(la, pip->ip_src, pip->ip_dst,
	- ud->uh_sport, ud->uh_dport,
	- IPPROTO_UDP, create, &lnk);
	+ ret = FindUdpTcpOut(la, pip->ip_src, pip->ip_dst, ud->uh_sport,
	+ ud->uh_dport, IPPROTO_UDP, create, &lnk);
	if (ret != PKT_ALIAS_OK)
	return (ret);
	{
	u_short alias_port;
	struct in_addr alias_address;
	- struct alias_data ad = {
	- .lnk = lnk,
	+ struct alias_data ad = { .lnk = lnk,
	.oaddr = NULL,
	.aaddr = &alias_address,
	.aport = &alias_port,
	.sport = &ud->uh_sport,
	.dport = &ud->uh_dport,
	- .maxpktsize = 0
	- };
	+ .maxpktsize = 0 };

	/* Save original destination address, if this is a proxy packet.
	* Also modify packet to include destination encoding. This may
	@@ -943,8 +934,8 @@
	ud->uh_sport = alias_port;

	/* Change source address */
	- DifferentialChecksum(&pip->ip_sum,
	- &alias_address, &pip->ip_src, 2);
	+ DifferentialChecksum(&pip->ip_sum, &alias_address, &pip->ip_src,
	+ 2);
	pip->ip_src = alias_address;

	return (PKT_ALIAS_OK);
	@@ -966,11 +957,9 @@
	return (PKT_ALIAS_IGNORED);
	tc = (struct tcphdr *)ip_next(pip);

	- ret = FindUdpTcpIn(la, pip->ip_src, pip->ip_dst,
	- tc->th_sport, tc->th_dport,
	- IPPROTO_TCP,
	- !(la->packetAliasMode & PKT_ALIAS_PROXY_ONLY),
	- &lnk);
	+ ret = FindUdpTcpIn(la, pip->ip_src, pip->ip_dst, tc->th_sport,
	+ tc->th_dport, IPPROTO_TCP,
	+ !(la->packetAliasMode & PKT_ALIAS_PROXY_ONLY), &lnk);
	if (ret == PKT_ALIAS_OK) {
	struct in_addr alias_address;
	struct in_addr original_address;
	@@ -985,15 +974,13 @@
	* packet and not the original one looks below [*].
	*/

	- struct alias_data ad = {
	- .lnk = lnk,
	+ struct alias_data ad = { .lnk = lnk,
	.oaddr = NULL,
	.aaddr = NULL,
	.aport = NULL,
	.sport = &tc->th_sport,
	.dport = &tc->th_dport,
	- .maxpktsize = 0
	- };
	+ .maxpktsize = 0 };

	/* Walk out chain. */
	find_handler(IN, TCP, la, pip, &ad);
	@@ -1101,8 +1088,8 @@

	if (create)
	proxy_type = ProxyCheck(la, &proxy_server_address,
	- &proxy_server_port, pip->ip_src, pip->ip_dst,
	- tc->th_dport, pip->ip_p);
	+ &proxy_server_port, pip->ip_src, pip->ip_dst, tc->th_dport,
	+ pip->ip_p);
	else
	proxy_type = 0;

	@@ -1128,24 +1115,21 @@
	accumulate -= twowords(&pip->ip_dst);
	ADJUST_CHECKSUM(accumulate, pip->ip_sum);
	}
	- ret = FindUdpTcpOut(la, pip->ip_src, pip->ip_dst,
	- tc->th_sport, tc->th_dport,
	- IPPROTO_TCP, create, &lnk);
	+ ret = FindUdpTcpOut(la, pip->ip_src, pip->ip_dst, tc->th_sport,
	+ tc->th_dport, IPPROTO_TCP, create, &lnk);
	if (ret != PKT_ALIAS_OK)
	return (ret);
	{
	u_short alias_port;
	struct in_addr alias_address;
	int accumulate;
	- struct alias_data ad = {
	- .lnk = lnk,
	+ struct alias_data ad = { .lnk = lnk,
	.oaddr = NULL,
	.aaddr = &alias_address,
	.aport = &alias_port,
	.sport = &tc->th_sport,
	.dport = &tc->th_dport,
	- .maxpktsize = maxpacketsize
	- };
	+ .maxpktsize = maxpacketsize };

	/* Save original destination address, if this is a proxy packet.
	* Also modify packet to include destination
	@@ -1213,10 +1197,9 @@
	*/

	/* Local prototypes */
	-static int FragmentIn(struct libalias *la, struct in_addr ip_src,
	- struct ip pip, u_short ip_id, u_short ip_sum);
	-static int FragmentOut(struct libalias , struct ip pip,
	- u_short *ip_sum);
	+static int FragmentIn(struct libalias *la, struct in_addr ip_src,
	+ struct ip pip, u_short ip_id, u_short ip_sum);
	+static int FragmentOut(struct libalias , struct ip pip, u_short *ip_sum);

	static int
	FragmentIn(struct libalias la, struct in_addr ip_src, struct ip pip,
	@@ -1230,8 +1213,8 @@
	struct in_addr original_address;

	GetFragmentAddr(lnk, &original_address);
	- DifferentialChecksum(ip_sum,
	- &original_address, &pip->ip_dst, 2);
	+ DifferentialChecksum(ip_sum, &original_address, &pip->ip_dst,
	+ 2);
	pip->ip_dst = original_address;

	return (PKT_ALIAS_OK);
	@@ -1246,8 +1229,7 @@

	LIBALIAS_LOCK_ASSERT(la);
	alias_address = FindAliasAddress(la, pip->ip_src);
	- DifferentialChecksum(ip_sum,
	- &alias_address, &pip->ip_src, 2);
	+ DifferentialChecksum(ip_sum, &alias_address, &pip->ip_src, 2);
	pip->ip_src = alias_address;

	return (PKT_ALIAS_OK);
	@@ -1297,7 +1279,7 @@
	if (lnk != NULL) {
	GetFragmentPtr(lnk, &fptr);
	SetFragmentPtr(lnk, NULL);
	- SetExpire(lnk, 0); /* Deletes link */
	+ SetExpire(lnk, 0); /* Deletes link */
	} else
	fptr = NULL;

	@@ -1307,8 +1289,8 @@

	void
	LibAliasFragmentIn(struct libalias *la,
	- void ptr, / Points to correctly de-aliased header fragment */
	- void ptr_fragment / fragment which must be de-aliased */
	+ void ptr, / Points to correctly de-aliased header fragment */
	+ void ptr_fragment / fragment which must be de-aliased */
	)
	{
	struct ip *pip;
	@@ -1319,18 +1301,15 @@
	pip = (struct ip *)ptr;
	fpip = (struct ip *)ptr_fragment;

	- DifferentialChecksum(&fpip->ip_sum,
	- &pip->ip_dst, &fpip->ip_dst, 2);
	+ DifferentialChecksum(&fpip->ip_sum, &pip->ip_dst, &fpip->ip_dst, 2);
	fpip->ip_dst = pip->ip_dst;
	LIBALIAS_UNLOCK(la);
	}

	/* Local prototypes */
	-static int
	-LibAliasOutLocked(struct libalias la, struct ip pip,
	+static int LibAliasOutLocked(struct libalias la, struct ip pip,
	int maxpacketsize, int create);
	-static int
	-LibAliasInLocked(struct libalias la, struct ip pip,
	+static int LibAliasInLocked(struct libalias la, struct ip pip,
	int maxpacketsize);

	int
	@@ -1360,8 +1339,8 @@
	alias_addr = pip->ip_dst;

	/* Defense against mangled packets */
	- if (ntohs(pip->ip_len) > maxpacketsize
	- \|\| (pip->ip_hl << 2) > maxpacketsize) {
	+ if (ntohs(pip->ip_len) > maxpacketsize \|\|
	+ (pip->ip_hl << 2) > maxpacketsize) {
	iresult = PKT_ALIAS_IGNORED;
	goto getout;
	}
	@@ -1390,28 +1369,26 @@
	#endif
	case IPPROTO_GRE: {
	int error;
	- struct alias_data ad = {
	- .lnk = NULL,
	+ struct alias_data ad = { .lnk = NULL,
	.oaddr = NULL,
	.aaddr = NULL,
	.aport = NULL,
	.sport = NULL,
	.dport = NULL,
	- .maxpktsize = 0
	- };
	+ .maxpktsize = 0 };

	/* Walk out chain. */
	error = find_handler(IN, IP, la, pip, &ad);
	if (error == 0)
	iresult = PKT_ALIAS_OK;
	else
	- iresult = ProtoAliasIn(la, pip->ip_src,
	- pip, pip->ip_p, &pip->ip_sum);
	+ iresult = ProtoAliasIn(la, pip->ip_src, pip, pip->ip_p,
	+ &pip->ip_sum);
	break;
	}
	default:
	- iresult = ProtoAliasIn(la, pip->ip_src, pip,
	- pip->ip_p, &pip->ip_sum);
	+ iresult = ProtoAliasIn(la, pip->ip_src, pip, pip->ip_p,
	+ &pip->ip_sum);
	break;
	}

	@@ -1472,10 +1449,10 @@
	}

	static int
	-LibAliasOutLocked(struct libalias *la,
	- struct ip pip, / valid IP packet */
	- int maxpacketsize, /* How much the packet data may grow (FTP and IRC inline changes) */
	- int create /* Create new entries ? */
	+LibAliasOutLocked(struct libalias la, struct ip pip, /* valid IP packet */
	+ int maxpacketsize, /* How much the packet data may grow (FTP and IRC inline
	+ changes) */
	+ int create /* Create new entries ? */
	)
	{
	int iresult;
	@@ -1490,8 +1467,8 @@
	HouseKeeping(la);

	/* Defense against mangled packets */
	- if (ntohs(pip->ip_len) > maxpacketsize
	- \|\| (pip->ip_hl << 2) > maxpacketsize) {
	+ if (ntohs(pip->ip_len) > maxpacketsize \|\|
	+ (pip->ip_hl << 2) > maxpacketsize) {
	iresult = PKT_ALIAS_IGNORED;
	goto getout;
	}
	@@ -1506,11 +1483,14 @@
	addr = ntohl(pip->ip_src.s_addr);
	if (addr >= UNREG_ADDR_C_LOWER && addr <= UNREG_ADDR_C_UPPER)
	iclass = 3;
	- else if (addr >= UNREG_ADDR_B_LOWER && addr <= UNREG_ADDR_B_UPPER)
	+ else if (addr >= UNREG_ADDR_B_LOWER &&
	+ addr <= UNREG_ADDR_B_UPPER)
	iclass = 2;
	- else if (addr >= UNREG_ADDR_A_LOWER && addr <= UNREG_ADDR_A_UPPER)
	+ else if (addr >= UNREG_ADDR_A_LOWER &&
	+ addr <= UNREG_ADDR_A_UPPER)
	iclass = 1;
	- else if (addr >= UNREG_ADDR_CGN_LOWER && addr <= UNREG_ADDR_CGN_UPPER &&
	+ else if (addr >= UNREG_ADDR_CGN_LOWER &&
	+ addr <= UNREG_ADDR_CGN_UPPER &&
	la->packetAliasMode & PKT_ALIAS_UNREGISTERED_CGN)
	iclass = 4;

	@@ -1544,27 +1524,25 @@
	#endif
	case IPPROTO_GRE: {
	int error;
	- struct alias_data ad = {
	- .lnk = NULL,
	+ struct alias_data ad = { .lnk = NULL,
	.oaddr = NULL,
	.aaddr = NULL,
	.aport = NULL,
	.sport = NULL,
	.dport = NULL,
	- .maxpktsize = 0
	- };
	+ .maxpktsize = 0 };
	/* Walk out chain. */
	error = find_handler(OUT, IP, la, pip, &ad);
	if (error == 0)
	iresult = PKT_ALIAS_OK;
	else
	- iresult = ProtoAliasOut(la, pip,
	- pip->ip_dst, pip->ip_p, &pip->ip_sum, create);
	+ iresult = ProtoAliasOut(la, pip, pip->ip_dst, pip->ip_p,
	+ &pip->ip_sum, create);
	break;
	- }
	+ }
	default:
	- iresult = ProtoAliasOut(la, pip,
	- pip->ip_dst, pip->ip_p, &pip->ip_sum, create);
	+ iresult = ProtoAliasOut(la, pip, pip->ip_dst, pip->ip_p,
	+ &pip->ip_sum, create);
	break;
	}

	@@ -1575,9 +1553,8 @@
	}

	int
	-LibAliasUnaliasOut(struct libalias *la,
	- void ptr, / valid IP packet */
	- int maxpacketsize /* for error checking */
	+LibAliasUnaliasOut(struct libalias la, void ptr, /* valid IP packet */
	+ int maxpacketsize /* for error checking */
	)
	{
	struct ip *pip;
	@@ -1591,8 +1568,8 @@
	pip = (struct ip *)ptr;

	/* Defense against mangled packets */
	- if (ntohs(pip->ip_len) > maxpacketsize
	- \|\| (pip->ip_hl << 2) > maxpacketsize)
	+ if (ntohs(pip->ip_len) > maxpacketsize \|\|
	+ (pip->ip_hl << 2) > maxpacketsize)
	goto getout;

	ud = (struct udphdr *)ip_next(pip);
	@@ -1602,19 +1579,17 @@
	/* Find a link */
	if (pip->ip_p == IPPROTO_UDP) {
	iresult = FindUdpTcpIn(la, pip->ip_dst, pip->ip_src,
	- ud->uh_dport, ud->uh_sport,
	- IPPROTO_UDP, 0, &lnk);
	+ ud->uh_dport, ud->uh_sport, IPPROTO_UDP, 0, &lnk);
	if (iresult != PKT_ALIAS_OK)
	goto getout;
	} else if (pip->ip_p == IPPROTO_TCP) {
	iresult = FindUdpTcpIn(la, pip->ip_dst, pip->ip_src,
	- tc->th_dport, tc->th_sport,
	- IPPROTO_TCP, 0, &lnk);
	+ tc->th_dport, tc->th_sport, IPPROTO_TCP, 0, &lnk);
	if (iresult != PKT_ALIAS_OK)
	goto getout;
	} else if (pip->ip_p == IPPROTO_ICMP) {
	- iresult = FindIcmpIn(la, pip->ip_dst, pip->ip_src,
	- ic->icmp_id, 0, &lnk);
	+ iresult = FindIcmpIn(la, pip->ip_dst, pip->ip_src, ic->icmp_id,
	+ 0, &lnk);
	if (iresult != PKT_ALIAS_OK)
	goto getout;
	} else
	@@ -1645,8 +1620,8 @@
	}

	/* Adjust IP checksum */
	- DifferentialChecksum(&pip->ip_sum,
	- &original_address, &pip->ip_src, 2);
	+ DifferentialChecksum(&pip->ip_sum, &original_address,
	+ &pip->ip_src, 2);

	/* Un-alias source address and port number */
	pip->ip_src = original_address;
	@@ -1672,8 +1647,8 @@
	ADJUST_CHECKSUM(accumulate, ic->icmp_cksum);

	/* Adjust IP checksum */
	- DifferentialChecksum(&pip->ip_sum,
	- &original_address, &pip->ip_src, 2);
	+ DifferentialChecksum(&pip->ip_sum, &original_address,
	+ &pip->ip_src, 2);

	/* Un-alias source address and port number */
	pip->ip_src = original_address;
	@@ -1730,14 +1705,14 @@
	const char *error;
	moduledata_t *p;

	- handle = dlopen (path, RTLD_LAZY);
	+ handle = dlopen(path, RTLD_LAZY);
	if (!handle) {
	fprintf(stderr, "%s\n", dlerror());
	return (EINVAL);
	}

	p = dlsym(handle, "alias_mod");
	- if ((error = dlerror()) != NULL) {
	+ if ((error = dlerror()) != NULL) {
	fprintf(stderr, "%s\n", dlerror());
	return (EINVAL);
	}
	@@ -1754,7 +1729,7 @@
	}

	m = dlsym(t->handle, "handlers");
	- if ((error = dlerror()) != NULL) {
	+ if ((error = dlerror()) != NULL) {
	fprintf(stderr, "%s\n", error);
	return (EINVAL);
	}
	Index: sys/netinet/libalias/alias_db.h
	===================================================================
	--- sys/netinet/libalias/alias_db.h
	+++ sys/netinet/libalias/alias_db.h
	@@ -143,48 +143,47 @@
	#ifndef _ALIAS_DB_H_
	#define _ALIAS_DB_H_

	-
	/*
	Constants (note: constants are also defined
	near relevant functions or structs)
	*/

	/* Timeouts (in seconds) for different link types */
	-#define ICMP_EXPIRE_TIME 60
	-#define UDP_EXPIRE_TIME 60
	-#define PROTO_EXPIRE_TIME 60
	-#define FRAGMENT_ID_EXPIRE_TIME 10
	-#define FRAGMENT_PTR_EXPIRE_TIME 30
	+#define ICMP_EXPIRE_TIME 60
	+#define UDP_EXPIRE_TIME 60
	+#define PROTO_EXPIRE_TIME 60
	+#define FRAGMENT_ID_EXPIRE_TIME 10
	+#define FRAGMENT_PTR_EXPIRE_TIME 30

	/* TCP link expire time for different cases */
	/* When the link has been used and closed - minimal grace time to
	allow ACKs and potential re-connect in FTP (XXX - is this allowed?) */
	#ifndef TCP_EXPIRE_DEAD
	-#define TCP_EXPIRE_DEAD 10
	+#define TCP_EXPIRE_DEAD 10
	#endif

	/* When the link has been used and closed on one side - the other side
	is allowed to still send data */
	#ifndef TCP_EXPIRE_SINGLEDEAD
	-#define TCP_EXPIRE_SINGLEDEAD 90
	+#define TCP_EXPIRE_SINGLEDEAD 90
	#endif

	/* When the link isn't yet up */
	#ifndef TCP_EXPIRE_INITIAL
	-#define TCP_EXPIRE_INITIAL 300
	+#define TCP_EXPIRE_INITIAL 300
	#endif

	/* When the link is up */
	#ifndef TCP_EXPIRE_CONNECTED
	-#define TCP_EXPIRE_CONNECTED 86400
	+#define TCP_EXPIRE_CONNECTED 86400
	#endif

	/* Dummy port number codes used for FindLinkIn/Out() and AddLink().
	These constants can be anything except zero, which indicates an
	unknown port number. */

	-#define NO_DEST_PORT 1
	-#define NO_SRC_PORT 1
	+#define NO_DEST_PORT 1
	+#define NO_SRC_PORT 1

	/* Matches any/unknown address in FindLinkIn/Out() and AddLink(). */
	static struct in_addr const ANY_ADDR = { INADDR_ANY };
	@@ -220,94 +219,94 @@

	/* used to save changes to ACK/sequence numbers */
	struct ack_data_record {
	- u_long ack_old;
	- u_long ack_new;
	- int delta;
	- int active;
	+ u_long ack_old;
	+ u_long ack_new;
	+ int delta;
	+ int active;
	};

	/* Information about TCP connection */
	struct tcp_state {
	- int in; /* State for outside -> inside */
	- int out; /* State for inside -> outside */
	- int index; /* Index to ACK data array */
	+ int in; /* State for outside -> inside */
	+ int out; /* State for inside -> outside */
	+ int index; /* Index to ACK data array */
	/* Indicates whether ACK and sequence numbers been modified */
	- int ack_modified;
	+ int ack_modified;
	};

	/* Number of distinct ACK number changes
	* saved for a modified TCP stream */
	-#define N_LINK_TCP_DATA 3
	+#define N_LINK_TCP_DATA 3
	struct tcp_dat {
	struct tcp_state state;
	struct ack_data_record ack[N_LINK_TCP_DATA];
	/* Which firewall record is used for this hole? */
	- int fwhole;
	+ int fwhole;
	};

	/* LSNAT server pool (circular list) */
	struct server {
	- struct in_addr addr;
	- u_short port;
	- struct server *next;
	+ struct in_addr addr;
	+ u_short port;
	+ struct server *next;
	};

	/* Main data structure */
	struct alias_link {
	struct libalias *la;
	/* Address and port information */
	- struct in_addr src_addr;
	- struct in_addr dst_addr;
	- struct in_addr alias_addr;
	- struct in_addr proxy_addr;
	- u_short src_port;
	- u_short dst_port;
	- u_short alias_port;
	- u_short proxy_port;
	- struct server *server;
	+ struct in_addr src_addr;
	+ struct in_addr dst_addr;
	+ struct in_addr alias_addr;
	+ struct in_addr proxy_addr;
	+ u_short src_port;
	+ u_short dst_port;
	+ u_short alias_port;
	+ u_short proxy_port;
	+ struct server *server;
	/* Type of link: TCP, UDP, ICMP, proto, frag */
	- int link_type;
	+ int link_type;
	/* values for link_type */
	-#define LINK_ICMP IPPROTO_ICMP
	-#define LINK_UDP IPPROTO_UDP
	-#define LINK_TCP IPPROTO_TCP
	-#define LINK_FRAGMENT_ID (IPPROTO_MAX + 1)
	-#define LINK_FRAGMENT_PTR (IPPROTO_MAX + 2)
	-#define LINK_ADDR (IPPROTO_MAX + 3)
	-#define LINK_PPTP (IPPROTO_MAX + 4)
	-
	- int flags; /* indicates special characteristics */
	- int pflags; /* protocol-specific flags */
	+#define LINK_ICMP IPPROTO_ICMP
	+#define LINK_UDP IPPROTO_UDP
	+#define LINK_TCP IPPROTO_TCP
	+#define LINK_FRAGMENT_ID (IPPROTO_MAX + 1)
	+#define LINK_FRAGMENT_PTR (IPPROTO_MAX + 2)
	+#define LINK_ADDR (IPPROTO_MAX + 3)
	+#define LINK_PPTP (IPPROTO_MAX + 4)
	+
	+ int flags; /* indicates special characteristics */
	+ int pflags; /* protocol-specific flags */
	/* flag bits */
	-#define LINK_UNKNOWN_DEST_PORT 0x01
	-#define LINK_UNKNOWN_DEST_ADDR 0x02
	-#define LINK_PERMANENT 0x04
	-#define LINK_PARTIALLY_SPECIFIED 0x03 /* logical-or of first two bits */
	-#define LINK_UNFIREWALLED 0x08
	+#define LINK_UNKNOWN_DEST_PORT 0x01
	+#define LINK_UNKNOWN_DEST_ADDR 0x02
	+#define LINK_PERMANENT 0x04
	+#define LINK_PARTIALLY_SPECIFIED 0x03 /* logical-or of first two bits */
	+#define LINK_UNFIREWALLED 0x08

	- int timestamp; /* Time link was last accessed */
	+ int timestamp; /* Time link was last accessed */
	#ifndef NO_USE_SOCKETS
	- int sockfd; /* socket descriptor */
	+ int sockfd; /* socket descriptor */
	#endif
	/* Linked list of pointers for input and output lookup tables */
	union {
	struct {
	SPLAY_ENTRY(alias_link) out;
	- LIST_ENTRY (alias_link) in;
	+ LIST_ENTRY(alias_link) in;
	SPLAY_ENTRY(alias_link) internal_endpoint;
	} all;
	struct {
	- LIST_ENTRY (alias_link) list;
	+ LIST_ENTRY(alias_link) list;
	} pptp;
	};
	struct {
	TAILQ_ENTRY(alias_link) list;
	- int time; /* Expire time for link */
	+ int time; /* Expire time for link */
	} expire;
	/* Auxiliary data */
	union {
	- char *frag_ptr;
	- struct in_addr frag_addr;
	+ char *frag_ptr;
	+ struct in_addr frag_addr;
	struct tcp_dat *tcp;
	} data;
	};
	@@ -329,60 +328,75 @@
	*/

	/* Local prototypes */
	-static struct group_in *
	-StartPointIn(struct libalias *, struct in_addr, u_short, int, int);
	-static int SeqDiff(u_long, u_long);
	+static struct group_in StartPointIn(struct libalias , struct in_addr, u_short,
	+ int, int);
	+static int SeqDiff(u_long, u_long);

	#ifndef NO_FW_PUNCH
	/* Firewall control */
	-static void InitPunchFW(struct libalias *);
	-static void UninitPunchFW(struct libalias *);
	-static void ClearFWHole(struct alias_link *);
	+static void InitPunchFW(struct libalias *);
	+static void UninitPunchFW(struct libalias *);
	+static void ClearFWHole(struct alias_link *);

	#endif

	/* Log file control */
	-static void ShowAliasStats(struct libalias *);
	-static int InitPacketAliasLog(struct libalias *);
	-static void UninitPacketAliasLog(struct libalias *);
	-
	-void SctpShowAliasStats(struct libalias *la);
	+static void ShowAliasStats(struct libalias *);
	+static int InitPacketAliasLog(struct libalias *);
	+static void UninitPacketAliasLog(struct libalias *);

	+void SctpShowAliasStats(struct libalias *la);

	/* Splay handling */
	static inline int
	-cmp_out(struct alias_link a, struct alias_link b) {
	+cmp_out(struct alias_link a, struct alias_link b)
	+{
	int i = a->src_port - b->src_port;
	- if (i != 0) return (i);
	- if (a->src_addr.s_addr > b->src_addr.s_addr) return (1);
	- if (a->src_addr.s_addr < b->src_addr.s_addr) return (-1);
	- if (a->dst_addr.s_addr > b->dst_addr.s_addr) return (1);
	- if (a->dst_addr.s_addr < b->dst_addr.s_addr) return (-1);
	+ if (i != 0)
	+ return (i);
	+ if (a->src_addr.s_addr > b->src_addr.s_addr)
	+ return (1);
	+ if (a->src_addr.s_addr < b->src_addr.s_addr)
	+ return (-1);
	+ if (a->dst_addr.s_addr > b->dst_addr.s_addr)
	+ return (1);
	+ if (a->dst_addr.s_addr < b->dst_addr.s_addr)
	+ return (-1);
	i = a->dst_port - b->dst_port;
	- if (i != 0) return (i);
	+ if (i != 0)
	+ return (i);
	i = a->link_type - b->link_type;
	return (i);
	}
	SPLAY_PROTOTYPE(splay_out, alias_link, all.out, cmp_out);

	static inline int
	-cmp_in(struct group_in a, struct group_in b) {
	+cmp_in(struct group_in a, struct group_in b)
	+{
	int i = a->alias_port - b->alias_port;
	- if (i != 0) return (i);
	+ if (i != 0)
	+ return (i);
	i = a->link_type - b->link_type;
	- if (i != 0) return (i);
	- if (a->alias_addr.s_addr > b->alias_addr.s_addr) return (1);
	- if (a->alias_addr.s_addr < b->alias_addr.s_addr) return (-1);
	+ if (i != 0)
	+ return (i);
	+ if (a->alias_addr.s_addr > b->alias_addr.s_addr)
	+ return (1);
	+ if (a->alias_addr.s_addr < b->alias_addr.s_addr)
	+ return (-1);
	return (0);
	}
	SPLAY_PROTOTYPE(splay_in, group_in, in, cmp_in);

	static inline int
	-cmp_internal_endpoint(struct alias_link a, struct alias_link b) {
	+cmp_internal_endpoint(struct alias_link a, struct alias_link b)
	+{
	int i = a->link_type - b->link_type;
	- if (i != 0) return (i);
	- if (a->src_addr.s_addr > b->src_addr.s_addr) return (1);
	- if (a->src_addr.s_addr < b->src_addr.s_addr) return (-1);
	+ if (i != 0)
	+ return (i);
	+ if (a->src_addr.s_addr > b->src_addr.s_addr)
	+ return (1);
	+ if (a->src_addr.s_addr < b->src_addr.s_addr)
	+ return (-1);
	i = a->src_port - b->src_port;
	return (i);
	}
	@@ -412,48 +426,44 @@
	*/

	/* Local prototypes */
	-static int GetNewPort(struct libalias , struct alias_link , int);
	+static int GetNewPort(struct libalias , struct alias_link , int);
	#ifndef NO_USE_SOCKETS
	-static u_short GetSocket(struct libalias , u_short, int , int);
	+static u_short GetSocket(struct libalias , u_short, int , int);
	#endif
	-static void CleanupAliasData(struct libalias *, int);
	-static void CleanupLink(struct libalias , struct alias_link *, int);
	-static void DeleteLink(struct alias_link **, int);
	-static struct alias_link *
	-UseLink(struct libalias , struct alias_link );
	+static void CleanupAliasData(struct libalias *, int);
	+static void CleanupLink(struct libalias , struct alias_link *, int);
	+static void DeleteLink(struct alias_link **, int);
	+static struct alias_link UseLink(struct libalias , struct alias_link *);

	-static struct alias_link *
	-ReLink(struct alias_link *,
	- struct in_addr, struct in_addr, struct in_addr,
	- u_short, u_short, int, int, int);
	+static struct alias_link ReLink(struct alias_link , struct in_addr,
	+ struct in_addr, struct in_addr, u_short, u_short, int, int, int);

	-static struct alias_link *
	-FindLinkOut(struct libalias *, struct in_addr, struct in_addr, u_short, u_short, int, int);
	+static struct alias_link FindLinkOut(struct libalias , struct in_addr,
	+ struct in_addr, u_short, u_short, int, int);

	-static struct alias_link *
	-FindLinkIn(struct libalias *, struct in_addr, struct in_addr, u_short, u_short, int, int);
	+static struct alias_link FindLinkIn(struct libalias , struct in_addr,
	+ struct in_addr, u_short, u_short, int, int);

	-static struct alias_link *
	-FindLinkByInternalEndpoint(struct libalias *, struct in_addr, u_short, int);
	+static struct alias_link FindLinkByInternalEndpoint(struct libalias ,
	+ struct in_addr, u_short, int);

	static u_short _RandomPort(struct libalias *la);

	-#define GET_NEW_PORT_MAX_ATTEMPTS 20
	-
	+#define GET_NEW_PORT_MAX_ATTEMPTS 20

	#ifndef NO_FW_PUNCH

	static void ClearAllFWHoles(struct libalias *la);

	-#define fw_setfield(la, field, num) \
	-do { \
	- (field)[(num) - la->fireWallBaseNum] = 1; \
	-} /lint -save -e717 / while(0)/* lint -restore */
	+#define fw_setfield(la, field, num) \
	+ do { \
	+ (field)[(num) - la->fireWallBaseNum] = 1; \
	+ } /lint -save -e717 / while (0) /* lint -restore */

	-#define fw_clrfield(la, field, num) \
	-do { \
	- (field)[(num) - la->fireWallBaseNum] = 0; \
	-} /lint -save -e717 / while(0)/* lint -restore */
	+#define fw_clrfield(la, field, num) \
	+ do { \
	+ (field)[(num) - la->fireWallBaseNum] = 0; \
	+ } /lint -save -e717 / while (0) /* lint -restore */

	#define fw_tstfield(la, field, num) ((field)[(num) - la->fireWallBaseNum])

	Index: sys/netinet/libalias/alias_db.c
	===================================================================
	--- sys/netinet/libalias/alias_db.c
	+++ sys/netinet/libalias/alias_db.c
	@@ -29,30 +29,32 @@
	#include <sys/cdefs.h>
	#ifdef _KERNEL
	#include <sys/param.h>
	-#include <sys/kernel.h>
	#include <sys/systm.h>
	+#include <sys/kernel.h>
	#include <sys/lock.h>
	#include <sys/module.h>
	#include <sys/rwlock.h>
	#include <sys/stdarg.h>
	#include <sys/syslog.h>
	#else
	-#include <stdarg.h>
	-#include <stdlib.h>
	-#include <stdio.h>
	#include <sys/errno.h>
	#include <sys/time.h>
	+
	+#include <stdarg.h>
	+#include <stdio.h>
	+#include <stdlib.h>
	#include <unistd.h>
	#endif

	#include <sys/socket.h>
	+
	#include <netinet/tcp.h>

	#ifdef _KERNEL
	+#include <net/if.h>
	#include <netinet/libalias/alias.h>
	#include <netinet/libalias/alias_local.h>
	#include <netinet/libalias/alias_mod.h>
	-#include <net/if.h>
	#else
	#include "alias.h"
	#include "alias_local.h"
	@@ -84,9 +86,7 @@
	}
	}

	-static moduledata_t alias_mod = {
	- "alias", alias_mod_handler, NULL
	-};
	+static moduledata_t alias_mod = { "alias", alias_mod_handler, NULL };

	DECLARE_MODULE(alias, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
	#endif
	@@ -97,16 +97,13 @@
	cmp_internal_endpoint);

	static struct group_in *
	-StartPointIn(struct libalias *la,
	- struct in_addr alias_addr, u_short alias_port, int link_type,
	- int create)
	+StartPointIn(struct libalias *la, struct in_addr alias_addr, u_short alias_port,
	+ int link_type, int create)
	{
	struct group_in *grp;
	- struct group_in needle = {
	- .alias_addr = alias_addr,
	+ struct group_in needle = { .alias_addr = alias_addr,
	.alias_port = alias_port,
	- .link_type = link_type
	- };
	+ .link_type = link_type };

	grp = SPLAY_FIND(splay_in, &la->linkSplayIn, &needle);
	if (grp != NULL \|\| !create \|\| (grp = malloc(sizeof(*grp))) == NULL)
	@@ -123,10 +120,10 @@
	static int
	SeqDiff(u_long x, u_long y)
	{
	-/* Return the difference between two TCP sequence numbers
	- * This function is encapsulated in case there are any unusual
	- * arithmetic conditions that need to be considered.
	- */
	+ /* Return the difference between two TCP sequence numbers
	+ * This function is encapsulated in case there are any unusual
	+ * arithmetic conditions that need to be considered.
	+ */
	return (ntohl(y) - ntohl(x));
	}

	@@ -159,41 +156,38 @@
	LIBALIAS_LOCK_ASSERT(la);
	/* Used for debugging */
	if (la->logDesc) {
	- int tot = la->icmpLinkCount + la->udpLinkCount +
	- (la->sctpLinkCount>>1) + /* sctp counts half associations */
	- la->tcpLinkCount + la->pptpLinkCount +
	- la->protoLinkCount + la->fragmentIdLinkCount +
	- la->fragmentPtrLinkCount;
	+ int tot = la->icmpLinkCount + la->udpLinkCount +
	+ (la->sctpLinkCount >>
	+ 1) + /* sctp counts half associations */
	+ la->tcpLinkCount +
	+ la->pptpLinkCount + la->protoLinkCount +
	+ la->fragmentIdLinkCount + la->fragmentPtrLinkCount;

	AliasLog(la->logDesc,
	"icmp=%u, udp=%u, tcp=%u, sctp=%u, pptp=%u, proto=%u, frag_id=%u frag_ptr=%u / tot=%u",
	- la->icmpLinkCount,
	- la->udpLinkCount,
	- la->tcpLinkCount,
	- la->sctpLinkCount>>1, /* sctp counts half associations */
	- la->pptpLinkCount,
	- la->protoLinkCount,
	- la->fragmentIdLinkCount,
	- la->fragmentPtrLinkCount,
	- tot);
	+ la->icmpLinkCount, la->udpLinkCount, la->tcpLinkCount,
	+ la->sctpLinkCount >> 1, /* sctp counts half associations */
	+ la->pptpLinkCount, la->protoLinkCount,
	+ la->fragmentIdLinkCount, la->fragmentPtrLinkCount, tot);
	#ifndef _KERNEL
	AliasLog(la->logDesc, " (sock=%u)\n", la->sockCount);
	#endif
	}
	}

	-void SctpShowAliasStats(struct libalias *la)
	+void
	+SctpShowAliasStats(struct libalias *la)
	{
	ShowAliasStats(la);
	}

	/* get random port in network byte order */
	static u_short
	-_RandomPort(struct libalias *la) {
	+_RandomPort(struct libalias *la)
	+{
	u_short port;

	- port = la->aliasPortLower +
	- arc4random_uniform(la->aliasPortLength);
	+ port = la->aliasPortLower + arc4random_uniform(la->aliasPortLength);

	return ntohs(port);
	}
	@@ -216,7 +210,7 @@
	* this parameter is zero or positive, it precisely specifies
	* the port number. GetNewPort() will return this number
	* without check that it is in use.
	- *
	+ *
	* The aliasing port is automatically selected by one of
	* two methods below:
	*
	@@ -224,7 +218,7 @@
	* a randomly selected port number.
	*/
	if (alias_port_param >= 0 && alias_port_param < 0x10000) {
	- lnk->alias_port = (u_short) alias_port_param;
	+ lnk->alias_port = (u_short)alias_port_param;
	return (0);
	}
	if (alias_port_param != GET_ALIAS_PORT) {
	@@ -256,16 +250,16 @@
	* this is already in use, the remainder of the
	* trials will be random.
	*/
	- port = (la->packetAliasMode & PKT_ALIAS_SAME_PORTS)
	- ? lnk->src_port
	- : _RandomPort(la);
	+ port = (la->packetAliasMode & PKT_ALIAS_SAME_PORTS) ? lnk->src_port :
	+ _RandomPort(la);

	/* Port number search */
	for (i = 0; i < max_trials; i++, port = _RandomPort(la)) {
	struct group_in *grp;
	struct alias_link *search_result;

	- grp = StartPointIn(la, lnk->alias_addr, port, lnk->link_type, 0);
	+ grp = StartPointIn(la, lnk->alias_addr, port, lnk->link_type,
	+ 0);
	if (grp == NULL)
	break;

	@@ -278,9 +272,9 @@

	LIST_FOREACH(search_result, &grp->full, all.in) {
	if (lnk->dst_addr.s_addr ==
	- search_result->dst_addr.s_addr &&
	+ search_result->dst_addr.s_addr &&
	lnk->dst_port == search_result->dst_port)
	- break; /* found match */
	+ break; /* found match */
	}
	if (search_result == NULL)
	break;
	@@ -297,8 +291,7 @@
	#ifndef NO_USE_SOCKETS
	if ((la->packetAliasMode & PKT_ALIAS_USE_SOCKETS) &&
	(lnk->flags & LINK_PARTIALLY_SPECIFIED) &&
	- ((lnk->link_type == LINK_TCP) \|\|
	- (lnk->link_type == LINK_UDP))) {
	+ ((lnk->link_type == LINK_TCP) \|\| (lnk->link_type == LINK_UDP))) {
	if (!GetSocket(la, port, &lnk->sockfd, lnk->link_type)) {
	return (-1);
	}
	@@ -310,7 +303,7 @@
	}

	#ifndef NO_USE_SOCKETS
	-static u_short
	+static u_short
	GetSocket(struct libalias la, u_short port_net, int sockfd, int link_type)
	{
	int err;
	@@ -341,9 +334,7 @@
	sock_addr.sin_addr.s_addr = htonl(INADDR_ANY);
	sock_addr.sin_port = port_net;

	- err = bind(sock,
	- (struct sockaddr *)&sock_addr,
	- sizeof(sock_addr));
	+ err = bind(sock, (struct sockaddr *)&sock_addr, sizeof(sock_addr));
	if (err == 0) {
	la->sockCount++;
	*sockfd = sock;
	@@ -362,14 +353,9 @@
	looks for unused triplets: (dest addr, dest port, alias port). */

	int
	-FindNewPortGroup(struct libalias *la,
	- struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_short src_port,
	- u_short dst_port,
	- u_short port_count,
	- u_char proto,
	- u_char align)
	+FindNewPortGroup(struct libalias *la, struct in_addr dst_addr,
	+ struct in_addr alias_addr, u_short src_port, u_short dst_port,
	+ u_short port_count, u_char proto, u_char align)
	{
	int i, j;
	int max_trials;
	@@ -422,8 +408,8 @@
	u_short port_j = ntohs(port) + j;

	if ((search_result = FindLinkIn(la, dst_addr,
	- alias_addr, dst_port, htons(port_j),
	- link_type, 0)) != NULL)
	+ alias_addr, dst_port, htons(port_j), link_type,
	+ 0)) != NULL)
	break;
	}

	@@ -524,15 +510,14 @@
	&la->linkSplayInternalEndpoint, lnk);

	/* Remove intermediate node, if empty */
	- grp = StartPointIn(la, lnk->alias_addr, lnk->alias_port, lnk->link_type, 0);
	- if (grp != NULL &&
	- LIST_EMPTY(&grp->full) &&
	+ grp = StartPointIn(la, lnk->alias_addr, lnk->alias_port,
	+ lnk->link_type, 0);
	+ if (grp != NULL && LIST_EMPTY(&grp->full) &&
	LIST_EMPTY(&grp->partial)) {
	SPLAY_REMOVE(splay_in, &la->linkSplayIn, grp);
	free(grp);
	}
	- }
	- break;
	+ } break;
	}

	/* remove from housekeeping */
	@@ -669,7 +654,8 @@
	if (aux_tcp == NULL) {
	#ifdef LIBALIAS_DEBUG
	fprintf(stderr, "PacketAlias/AddLink: ");
	- fprintf(stderr, " cannot allocate auxiliary TCP data\n");
	+ fprintf(stderr,
	+ " cannot allocate auxiliary TCP data\n");
	#endif
	free(lnk);
	return (NULL);
	@@ -684,8 +670,7 @@
	aux_tcp->ack[i].active = 0;
	aux_tcp->fwhole = -1;
	lnk->data.tcp = aux_tcp;
	- }
	- break;
	+ } break;
	case LINK_PPTP:
	la->pptpLinkCount++;
	break;
	@@ -709,7 +694,8 @@
	default: {
	struct group_in *grp;

	- grp = StartPointIn(la, alias_addr, lnk->alias_port, link_type, 1);
	+ grp = StartPointIn(la, alias_addr, lnk->alias_port, link_type,
	+ 1);
	if (grp == NULL) {
	free(lnk);
	return (NULL);
	@@ -727,8 +713,7 @@
	/* Set up pointers for "internal endpoint" lookup table */
	SPLAY_INSERT(splay_internal_endpoint,
	&la->linkSplayInternalEndpoint, lnk);
	- }
	- break;
	+ } break;
	}

	/* Include the element into the housekeeping list */
	@@ -745,26 +730,18 @@
	* chosen. If greater than zero, equal to alias port
	*/
	static struct alias_link *
	-ReLink(struct alias_link *old_lnk,
	- struct in_addr src_addr,
	- struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_short src_port,
	- u_short dst_port,
	- int alias_port_param,
	- int link_type,
	- int deletePermanent)
	+ReLink(struct alias_link *old_lnk, struct in_addr src_addr,
	+ struct in_addr dst_addr, struct in_addr alias_addr, u_short src_port,
	+ u_short dst_port, int alias_port_param, int link_type, int deletePermanent)
	{
	struct alias_link *new_lnk;
	struct libalias *la = old_lnk->la;

	LIBALIAS_LOCK_ASSERT(la);
	- new_lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- src_port, dst_port, alias_port_param,
	- link_type);
	+ new_lnk = AddLink(la, src_addr, dst_addr, alias_addr, src_port,
	+ dst_port, alias_port_param, link_type);
	#ifndef NO_FW_PUNCH
	- if (new_lnk != NULL &&
	- old_lnk->link_type == LINK_TCP &&
	+ if (new_lnk != NULL && old_lnk->link_type == LINK_TCP &&
	old_lnk->data.tcp->fwhole > 0) {
	PunchFWHole(new_lnk);
	}
	@@ -775,18 +752,14 @@

	static struct alias_link *
	_SearchLinkOut(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_short src_port,
	- u_short dst_port,
	- int link_type) {
	+ struct in_addr dst_addr, u_short src_port, u_short dst_port, int link_type)
	+{
	struct alias_link *lnk;
	- struct alias_link needle = {
	- .src_addr = src_addr,
	+ struct alias_link needle = { .src_addr = src_addr,
	.dst_addr = dst_addr,
	.src_port = src_port,
	.dst_port = dst_port,
	- .link_type = link_type
	- };
	+ .link_type = link_type };

	lnk = SPLAY_FIND(splay_out, &la->linkSplayOut, &needle);
	return (UseLink(la, lnk));
	@@ -794,16 +767,14 @@

	static struct alias_link *
	_FindLinkOut(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_short src_port,
	- u_short dst_port,
	- int link_type,
	+ struct in_addr dst_addr, u_short src_port, u_short dst_port, int link_type,
	int replace_partial_links)
	{
	struct alias_link *lnk;

	LIBALIAS_LOCK_ASSERT(la);
	- lnk = _SearchLinkOut(la, src_addr, dst_addr, src_port, dst_port, link_type);
	+ lnk = _SearchLinkOut(la, src_addr, dst_addr, src_port, dst_port,
	+ link_type);
	if (lnk != NULL \|\| !replace_partial_links)
	return (lnk);

	@@ -815,26 +786,20 @@
	lnk = _SearchLinkOut(la, src_addr, ANY_ADDR, src_port,
	dst_port, link_type);
	}
	- if (lnk == NULL &&
	- (dst_port != 0 \|\| dst_addr.s_addr != INADDR_ANY)) {
	+ if (lnk == NULL && (dst_port != 0 \|\| dst_addr.s_addr != INADDR_ANY)) {
	lnk = _SearchLinkOut(la, src_addr, ANY_ADDR, src_port, 0,
	link_type);
	}
	if (lnk != NULL) {
	- lnk = ReLink(lnk,
	- src_addr, dst_addr, lnk->alias_addr,
	- src_port, dst_port, lnk->alias_port,
	- link_type, 0);
	+ lnk = ReLink(lnk, src_addr, dst_addr, lnk->alias_addr, src_port,
	+ dst_port, lnk->alias_port, link_type, 0);
	}
	return (lnk);
	}

	static struct alias_link *
	FindLinkOut(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_short src_port,
	- u_short dst_port,
	- int link_type,
	+ struct in_addr dst_addr, u_short src_port, u_short dst_port, int link_type,
	int replace_partial_links)
	{
	struct alias_link *lnk;
	@@ -852,8 +817,8 @@
	*/
	if (la->aliasAddress.s_addr != INADDR_ANY &&
	src_addr.s_addr == la->aliasAddress.s_addr) {
	- lnk = _FindLinkOut(la, ANY_ADDR, dst_addr, src_port, dst_port,
	- link_type, replace_partial_links);
	+ lnk = _FindLinkOut(la, ANY_ADDR, dst_addr, src_port,
	+ dst_port, link_type, replace_partial_links);
	}
	}
	return (lnk);
	@@ -861,11 +826,8 @@

	static struct alias_link *
	_FindLinkIn(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_short dst_port,
	- u_short alias_port,
	- int link_type,
	- int replace_partial_links)
	+ struct in_addr alias_addr, u_short dst_port, u_short alias_port,
	+ int link_type, int replace_partial_links)
	{
	int flags_in;
	struct group_in *grp;
	@@ -906,7 +868,8 @@
	if (found != NULL)
	return (found);
	/* link expired */
	- grp = StartPointIn(la, alias_addr, alias_port, link_type, 0);
	+ grp = StartPointIn(la, alias_addr, alias_port,
	+ link_type, 0);
	if (grp == NULL)
	return (NULL);
	break;
	@@ -915,7 +878,7 @@
	break;
	case LINK_UNKNOWN_DEST_PORT:
	LIST_FOREACH(lnk, &grp->full, all.in) {
	- if(lnk->dst_addr.s_addr == dst_addr.s_addr) {
	+ if (lnk->dst_addr.s_addr == dst_addr.s_addr) {
	lnk_unknown_dst_port = lnk;
	break;
	}
	@@ -923,7 +886,7 @@
	break;
	case LINK_UNKNOWN_DEST_ADDR:
	LIST_FOREACH(lnk, &grp->full, all.in) {
	- if(lnk->dst_port == dst_port) {
	+ if (lnk->dst_port == dst_port) {
	lnk_unknown_dst_addr = lnk;
	break;
	}
	@@ -936,7 +899,8 @@

	if (lnk_unknown_dst_port == NULL) {
	LIST_FOREACH(lnk, &grp->partial, all.in) {
	- int flags = (flags_in \| lnk->flags) & LINK_PARTIALLY_SPECIFIED;
	+ int flags = (flags_in \| lnk->flags) &
	+ LINK_PARTIALLY_SPECIFIED;

	if (flags == LINK_PARTIALLY_SPECIFIED &&
	lnk_unknown_all == NULL)
	@@ -953,14 +917,14 @@
	}
	}

	- lnk = (lnk_unknown_dst_port != NULL) ? lnk_unknown_dst_port
	- : (lnk_unknown_dst_addr != NULL) ? lnk_unknown_dst_addr
	- : lnk_unknown_all;
	+ lnk = (lnk_unknown_dst_port != NULL) ? lnk_unknown_dst_port :
	+ (lnk_unknown_dst_addr != NULL) ? lnk_unknown_dst_addr :
	+ lnk_unknown_all;

	if (lnk == NULL \|\| !replace_partial_links)
	return (lnk);

	- if (lnk->server != NULL) { /* LSNAT link */
	+ if (lnk->server != NULL) { /* LSNAT link */
	src_addr = lnk->server->addr;
	src_port = lnk->server->port;
	lnk->server = lnk->server->next;
	@@ -973,21 +937,16 @@
	lnk->src_addr = src_addr;
	lnk->src_port = src_port;
	} else {
	- lnk = ReLink(lnk,
	- src_addr, dst_addr, alias_addr,
	- src_port, dst_port, alias_port,
	- link_type, 0);
	+ lnk = ReLink(lnk, src_addr, dst_addr, alias_addr, src_port,
	+ dst_port, alias_port, link_type, 0);
	}
	return (lnk);
	}

	static struct alias_link *
	FindLinkIn(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_short dst_port,
	- u_short alias_port,
	- int link_type,
	- int replace_partial_links)
	+ struct in_addr alias_addr, u_short dst_port, u_short alias_port,
	+ int link_type, int replace_partial_links)
	{
	struct alias_link *lnk;

	@@ -995,8 +954,7 @@
	lnk = _FindLinkIn(la, dst_addr, alias_addr, dst_port, alias_port,
	link_type, replace_partial_links);

	- if (lnk == NULL &&
	- (la->packetAliasMode & PKT_ALIAS_UDP_EIM) &&
	+ if (lnk == NULL && (la->packetAliasMode & PKT_ALIAS_UDP_EIM) &&
	link_type == LINK_UDP &&
	!(la->packetAliasMode & PKT_ALIAS_DENY_INCOMING)) {
	lnk = _FindLinkIn(la, ANY_ADDR, alias_addr, 0, alias_port,
	@@ -1012,8 +970,8 @@
	*/
	if (la->aliasAddress.s_addr != INADDR_ANY &&
	alias_addr.s_addr == la->aliasAddress.s_addr) {
	- lnk = _FindLinkIn(la, dst_addr, ANY_ADDR, dst_port, alias_port,
	- link_type, replace_partial_links);
	+ lnk = _FindLinkIn(la, dst_addr, ANY_ADDR, dst_port,
	+ alias_port, link_type, replace_partial_links);
	}
	}
	return (lnk);
	@@ -1021,16 +979,14 @@

	static struct alias_link *
	FindLinkByInternalEndpoint(struct libalias *la, struct in_addr src_addr,
	- u_short src_port,
	- int link_type)
	+ u_short src_port, int link_type)
	{
	- struct alias_link needle = {
	- .src_addr = src_addr,
	+ struct alias_link needle = { .src_addr = src_addr,
	.src_port = src_port,
	- .link_type = link_type
	- };
	+ .link_type = link_type };
	LIBALIAS_LOCK_ASSERT(la);
	- return SPLAY_FIND(splay_internal_endpoint, &la->linkSplayInternalEndpoint, &needle);
	+ return SPLAY_FIND(splay_internal_endpoint,
	+ &la->linkSplayInternalEndpoint, &needle);
	}

	/* External routines for finding/adding links
	@@ -1051,9 +1007,7 @@

	int
	FindIcmpIn(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_short id_alias,
	- int create,
	+ struct in_addr alias_addr, u_short id_alias, int create,
	struct alias_link **lnkp)
	{
	struct alias_link *lnk;
	@@ -1062,16 +1016,15 @@

	*lnkp = NULL;

	- lnk = FindLinkIn(la, dst_addr, alias_addr,
	- NO_DEST_PORT, id_alias,
	+ lnk = FindLinkIn(la, dst_addr, alias_addr, NO_DEST_PORT, id_alias,
	LINK_ICMP, 0);
	- if (lnk == NULL && create && !(la->packetAliasMode & PKT_ALIAS_DENY_INCOMING)) {
	+ if (lnk == NULL && create &&
	+ !(la->packetAliasMode & PKT_ALIAS_DENY_INCOMING)) {
	struct in_addr target_addr;

	target_addr = FindOriginalAddress(la, alias_addr);
	- lnk = AddLink(la, target_addr, dst_addr, alias_addr,
	- id_alias, NO_DEST_PORT, id_alias,
	- LINK_ICMP);
	+ lnk = AddLink(la, target_addr, dst_addr, alias_addr, id_alias,
	+ NO_DEST_PORT, id_alias, LINK_ICMP);
	if (lnk == NULL)
	return (PKT_ALIAS_ERROR);
	}
	@@ -1081,10 +1034,7 @@

	int
	FindIcmpOut(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_short id,
	- int create,
	- struct alias_link **lnkp)
	+ struct in_addr dst_addr, u_short id, int create, struct alias_link **lnkp)
	{
	struct alias_link *lnk;

	@@ -1092,16 +1042,14 @@

	*lnkp = NULL;

	- lnk = FindLinkOut(la, src_addr, dst_addr,
	- id, NO_DEST_PORT,
	- LINK_ICMP, 0);
	+ lnk = FindLinkOut(la, src_addr, dst_addr, id, NO_DEST_PORT, LINK_ICMP,
	+ 0);
	if (lnk == NULL && create) {
	struct in_addr alias_addr;

	alias_addr = FindAliasAddress(la, src_addr);
	- lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- id, NO_DEST_PORT, GET_ALIAS_ID,
	- LINK_ICMP);
	+ lnk = AddLink(la, src_addr, dst_addr, alias_addr, id,
	+ NO_DEST_PORT, GET_ALIAS_ID, LINK_ICMP);
	if (lnk == NULL)
	return (PKT_ALIAS_ERROR);
	}
	@@ -1111,20 +1059,17 @@

	struct alias_link *
	FindFragmentIn1(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_short ip_id)
	+ struct in_addr alias_addr, u_short ip_id)
	{
	struct alias_link *lnk;

	LIBALIAS_LOCK_ASSERT(la);
	- lnk = FindLinkIn(la, dst_addr, alias_addr,
	- NO_DEST_PORT, ip_id,
	+ lnk = FindLinkIn(la, dst_addr, alias_addr, NO_DEST_PORT, ip_id,
	LINK_FRAGMENT_ID, 0);

	if (lnk == NULL) {
	- lnk = AddLink(la, ANY_ADDR, dst_addr, alias_addr,
	- NO_SRC_PORT, NO_DEST_PORT, ip_id,
	- LINK_FRAGMENT_ID);
	+ lnk = AddLink(la, ANY_ADDR, dst_addr, alias_addr, NO_SRC_PORT,
	+ NO_DEST_PORT, ip_id, LINK_FRAGMENT_ID);
	}
	return (lnk);
	}
	@@ -1135,36 +1080,29 @@
	struct in_addr alias_addr, u_short ip_id)
	{
	LIBALIAS_LOCK_ASSERT(la);
	- return FindLinkIn(la, dst_addr, alias_addr,
	- NO_DEST_PORT, ip_id,
	+ return FindLinkIn(la, dst_addr, alias_addr, NO_DEST_PORT, ip_id,
	LINK_FRAGMENT_ID, 0);
	}

	struct alias_link *
	-AddFragmentPtrLink(struct libalias *la, struct in_addr dst_addr,
	- u_short ip_id)
	+AddFragmentPtrLink(struct libalias *la, struct in_addr dst_addr, u_short ip_id)
	{
	LIBALIAS_LOCK_ASSERT(la);
	- return AddLink(la, ANY_ADDR, dst_addr, ANY_ADDR,
	- NO_SRC_PORT, NO_DEST_PORT, ip_id,
	- LINK_FRAGMENT_PTR);
	+ return AddLink(la, ANY_ADDR, dst_addr, ANY_ADDR, NO_SRC_PORT,
	+ NO_DEST_PORT, ip_id, LINK_FRAGMENT_PTR);
	}

	struct alias_link *
	-FindFragmentPtr(struct libalias *la, struct in_addr dst_addr,
	- u_short ip_id)
	+FindFragmentPtr(struct libalias *la, struct in_addr dst_addr, u_short ip_id)
	{
	LIBALIAS_LOCK_ASSERT(la);
	- return FindLinkIn(la, dst_addr, ANY_ADDR,
	- NO_DEST_PORT, ip_id,
	+ return FindLinkIn(la, dst_addr, ANY_ADDR, NO_DEST_PORT, ip_id,
	LINK_FRAGMENT_PTR, 0);
	}

	int
	FindProtoIn(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_char proto,
	- struct alias_link **lnkp)
	+ struct in_addr alias_addr, u_char proto, struct alias_link **lnkp)
	{
	struct alias_link *lnk;

	@@ -1172,16 +1110,13 @@

	*lnkp = NULL;

	- lnk = FindLinkIn(la, dst_addr, alias_addr,
	- NO_DEST_PORT, 0,
	- proto, 1);
	+ lnk = FindLinkIn(la, dst_addr, alias_addr, NO_DEST_PORT, 0, proto, 1);
	if (lnk == NULL && !(la->packetAliasMode & PKT_ALIAS_DENY_INCOMING)) {
	struct in_addr target_addr;

	target_addr = FindOriginalAddress(la, alias_addr);
	lnk = AddLink(la, target_addr, dst_addr, alias_addr,
	- NO_SRC_PORT, NO_DEST_PORT, 0,
	- proto);
	+ NO_SRC_PORT, NO_DEST_PORT, 0, proto);
	if (lnk == NULL)
	return (PKT_ALIAS_ERROR);
	}
	@@ -1191,9 +1126,7 @@

	int
	FindProtoOut(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_char proto,
	- struct alias_link **lnkp)
	+ struct in_addr dst_addr, u_char proto, struct alias_link **lnkp)
	{
	struct alias_link *lnk;

	@@ -1201,16 +1134,14 @@

	*lnkp = NULL;

	- lnk = FindLinkOut(la, src_addr, dst_addr,
	- NO_SRC_PORT, NO_DEST_PORT,
	+ lnk = FindLinkOut(la, src_addr, dst_addr, NO_SRC_PORT, NO_DEST_PORT,
	proto, 1);
	if (lnk == NULL) {
	struct in_addr alias_addr;

	alias_addr = FindAliasAddress(la, src_addr);
	- lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- NO_SRC_PORT, NO_DEST_PORT, 0,
	- proto);
	+ lnk = AddLink(la, src_addr, dst_addr, alias_addr, NO_SRC_PORT,
	+ NO_DEST_PORT, 0, proto);
	if (lnk == NULL)
	return (PKT_ALIAS_ERROR);
	}
	@@ -1220,12 +1151,8 @@

	int
	FindUdpTcpIn(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_short dst_port,
	- u_short alias_port,
	- u_char proto,
	- int create,
	- struct alias_link **lnkp)
	+ struct in_addr alias_addr, u_short dst_port, u_short alias_port,
	+ u_char proto, int create, struct alias_link **lnkp)
	{
	int link_type;
	struct alias_link *lnk;
	@@ -1245,20 +1172,18 @@
	return (PKT_ALIAS_IGNORED);
	}

	- lnk = FindLinkIn(la, dst_addr, alias_addr,
	- dst_port, alias_port,
	+ lnk = FindLinkIn(la, dst_addr, alias_addr, dst_port, alias_port,
	link_type, create);

	- if (lnk == NULL && create && !(la->packetAliasMode & PKT_ALIAS_DENY_INCOMING)) {
	+ if (lnk == NULL && create &&
	+ !(la->packetAliasMode & PKT_ALIAS_DENY_INCOMING)) {
	struct in_addr target_addr;

	target_addr = FindOriginalAddress(la, alias_addr);
	- lnk = AddLink(la, target_addr, dst_addr, alias_addr,
	- alias_port, dst_port, alias_port,
	- link_type);
	+ lnk = AddLink(la, target_addr, dst_addr, alias_addr, alias_port,
	+ dst_port, alias_port, link_type);
	if (lnk == NULL)
	return (PKT_ALIAS_ERROR);
	-
	}
	*lnkp = lnk;
	return (lnk != NULL ? PKT_ALIAS_OK : PKT_ALIAS_IGNORED);
	@@ -1266,12 +1191,8 @@

	int
	FindUdpTcpOut(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_short src_port,
	- u_short dst_port,
	- u_char proto,
	- int create,
	- struct alias_link **lnkp)
	+ struct in_addr dst_addr, u_short src_port, u_short dst_port, u_char proto,
	+ int create, struct alias_link **lnkp)
	{
	int link_type;
	struct alias_link *lnk;
	@@ -1291,14 +1212,14 @@
	return (PKT_ALIAS_IGNORED);
	}

	- lnk = FindLinkOut(la, src_addr, dst_addr, src_port, dst_port, link_type, create);
	+ lnk = FindLinkOut(la, src_addr, dst_addr, src_port, dst_port, link_type,
	+ create);
	if (lnk == NULL && create) {
	struct in_addr alias_addr;

	alias_addr = FindAliasAddress(la, src_addr);
	- lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- src_port, dst_port, GET_ALIAS_PORT,
	- link_type);
	+ lnk = AddLink(la, src_addr, dst_addr, alias_addr, src_port,
	+ dst_port, GET_ALIAS_PORT, link_type);
	if (lnk == NULL)
	return (PKT_ALIAS_ERROR);
	}
	@@ -1307,25 +1228,21 @@
	}

	struct alias_link *
	-AddPptp(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_int16_t src_call_id)
	+AddPptp(struct libalias *la, struct in_addr src_addr, struct in_addr dst_addr,
	+ struct in_addr alias_addr, u_int16_t src_call_id)
	{
	struct alias_link *lnk;

	LIBALIAS_LOCK_ASSERT(la);
	- lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- src_call_id, 0, GET_ALIAS_PORT,
	- LINK_PPTP);
	+ lnk = AddLink(la, src_addr, dst_addr, alias_addr, src_call_id, 0,
	+ GET_ALIAS_PORT, LINK_PPTP);

	return (lnk);
	}

	struct alias_link *
	FindPptpOutByCallId(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_int16_t src_call_id)
	+ struct in_addr dst_addr, u_int16_t src_call_id)
	{
	struct alias_link *lnk;

	@@ -1341,8 +1258,7 @@

	struct alias_link *
	FindPptpOutByPeerCallId(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_int16_t dst_call_id)
	+ struct in_addr dst_addr, u_int16_t dst_call_id)
	{
	struct alias_link *lnk;

	@@ -1358,8 +1274,7 @@

	struct alias_link *
	FindPptpInByCallId(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_int16_t dst_call_id)
	+ struct in_addr alias_addr, u_int16_t dst_call_id)
	{
	struct alias_link *lnk;

	@@ -1376,8 +1291,7 @@

	struct alias_link *
	FindPptpInByPeerCallId(struct libalias *la, struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_int16_t alias_call_id)
	+ struct in_addr alias_addr, u_int16_t alias_call_id)
	{
	struct alias_link *lnk;

	@@ -1393,10 +1307,7 @@

	struct alias_link *
	FindRtspOut(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- u_short src_port,
	- u_short alias_port,
	- u_char proto)
	+ struct in_addr dst_addr, u_short src_port, u_short alias_port, u_char proto)
	{
	int link_type;
	struct alias_link *lnk;
	@@ -1420,9 +1331,8 @@
	struct in_addr alias_addr;

	alias_addr = FindAliasAddress(la, src_addr);
	- lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- src_port, 0, alias_port,
	- link_type);
	+ lnk = AddLink(la, src_addr, dst_addr, alias_addr, src_port, 0,
	+ alias_port, link_type);
	}
	return (lnk);
	}
	@@ -1433,18 +1343,18 @@
	struct alias_link *lnk;

	LIBALIAS_LOCK_ASSERT(la);
	- lnk = FindLinkIn(la, ANY_ADDR, alias_addr,
	- 0, 0, LINK_ADDR, 0);
	+ lnk = FindLinkIn(la, ANY_ADDR, alias_addr, 0, 0, LINK_ADDR, 0);
	if (lnk == NULL) {
	if (la->targetAddress.s_addr == INADDR_ANY)
	return (alias_addr);
	else if (la->targetAddress.s_addr == INADDR_NONE)
	return (la->aliasAddress.s_addr != INADDR_ANY) ?
	- la->aliasAddress : alias_addr;
	+ la->aliasAddress :
	+ alias_addr;
	else
	return (la->targetAddress);
	} else {
	- if (lnk->server != NULL) { /* LSNAT link */
	+ if (lnk->server != NULL) { /* LSNAT link */
	struct in_addr src_addr;

	src_addr = lnk->server->addr;
	@@ -1452,7 +1362,8 @@
	return (src_addr);
	} else if (lnk->src_addr.s_addr == INADDR_ANY)
	return (la->aliasAddress.s_addr != INADDR_ANY) ?
	- la->aliasAddress : alias_addr;
	+ la->aliasAddress :
	+ alias_addr;
	else
	return (lnk->src_addr);
	}
	@@ -1464,15 +1375,16 @@
	struct alias_link *lnk;

	LIBALIAS_LOCK_ASSERT(la);
	- lnk = FindLinkOut(la, original_addr, ANY_ADDR,
	- 0, 0, LINK_ADDR, 0);
	+ lnk = FindLinkOut(la, original_addr, ANY_ADDR, 0, 0, LINK_ADDR, 0);
	if (lnk == NULL) {
	return (la->aliasAddress.s_addr != INADDR_ANY) ?
	- la->aliasAddress : original_addr;
	+ la->aliasAddress :
	+ original_addr;
	} else {
	if (lnk->alias_addr.s_addr == INADDR_ANY)
	return (la->aliasAddress.s_addr != INADDR_ANY) ?
	- la->aliasAddress : original_addr;
	+ la->aliasAddress :
	+ original_addr;
	else
	return (lnk->alias_addr);
	}
	@@ -1521,7 +1433,7 @@
	{
	/* TCP input state */
	switch (state) {
	- case ALIAS_TCP_STATE_DISCONNECTED:
	+ case ALIAS_TCP_STATE_DISCONNECTED:
	if (lnk->data.tcp->state.out != ALIAS_TCP_STATE_CONNECTED)
	lnk->expire.time = TCP_EXPIRE_DEAD;
	else
	@@ -1546,7 +1458,7 @@
	{
	/* TCP output state */
	switch (state) {
	- case ALIAS_TCP_STATE_DISCONNECTED:
	+ case ALIAS_TCP_STATE_DISCONNECTED:
	if (lnk->data.tcp->state.in != ALIAS_TCP_STATE_CONNECTED)
	lnk->expire.time = TCP_EXPIRE_DEAD;
	else
	@@ -1882,11 +1794,10 @@
	packets = 0;
	LibAliasTime = now;
	}
	-
	}
	/* Do a cleanup for the first packets of the new second only */
	if (packets < (la->udpLinkCount + la->tcpLinkCount)) {
	- struct alias_link * lnk = TAILQ_FIRST(&la->checkExpire);
	+ struct alias_link *lnk = TAILQ_FIRST(&la->checkExpire);

	CleanupLink(la, &lnk, 0);
	}
	@@ -1903,7 +1814,8 @@
	;
	#else
	if ((la->logDesc = fopen("/var/log/alias.log", "w")))
	- fprintf(la->logDesc, "PacketAlias/InitPacketAliasLog: Packet alias logging enabled.\n");
	+ fprintf(la->logDesc,
	+ "PacketAlias/InitPacketAliasLog: Packet alias logging enabled.\n");
	#endif
	else
	return (ENOMEM); /* log initialization failed */
	@@ -1950,10 +1862,9 @@
	/* Redirection from a specific public addr:port to a
	private addr:port */
	struct alias_link *
	-LibAliasRedirectPort(struct libalias *la, struct in_addr src_addr, u_short src_port,
	- struct in_addr dst_addr, u_short dst_port,
	- struct in_addr alias_addr, u_short alias_port,
	- u_char proto)
	+LibAliasRedirectPort(struct libalias *la, struct in_addr src_addr,
	+ u_short src_port, struct in_addr dst_addr, u_short dst_port,
	+ struct in_addr alias_addr, u_short alias_port, u_char proto)
	{
	int link_type;
	struct alias_link *lnk;
	@@ -1978,16 +1889,16 @@
	goto getout;
	}

	- lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- src_port, dst_port, alias_port,
	- link_type);
	+ lnk = AddLink(la, src_addr, dst_addr, alias_addr, src_port, dst_port,
	+ alias_port, link_type);

	if (lnk != NULL) {
	lnk->flags \|= LINK_PERMANENT;
	}
	#ifdef LIBALIAS_DEBUG
	else {
	- fprintf(stderr, "PacketAliasRedirectPort(): "
	+ fprintf(stderr,
	+ "PacketAliasRedirectPort(): "
	"call to AddLink() failed\n");
	}
	#endif
	@@ -1999,7 +1910,8 @@

	/* Add server to the pool of servers */
	int
	-LibAliasAddServer(struct libalias la, struct alias_link lnk, struct in_addr addr, u_short port)
	+LibAliasAddServer(struct libalias la, struct alias_link lnk,
	+ struct in_addr addr, u_short port)
	{
	struct server *server;
	int res;
	@@ -2048,23 +1960,21 @@
	public address to a private address */
	struct alias_link *
	LibAliasRedirectProto(struct libalias *la, struct in_addr src_addr,
	- struct in_addr dst_addr,
	- struct in_addr alias_addr,
	- u_char proto)
	+ struct in_addr dst_addr, struct in_addr alias_addr, u_char proto)
	{
	struct alias_link *lnk;

	LIBALIAS_LOCK(la);
	- lnk = AddLink(la, src_addr, dst_addr, alias_addr,
	- NO_SRC_PORT, NO_DEST_PORT, 0,
	- proto);
	+ lnk = AddLink(la, src_addr, dst_addr, alias_addr, NO_SRC_PORT,
	+ NO_DEST_PORT, 0, proto);

	if (lnk != NULL) {
	lnk->flags \|= LINK_PERMANENT;
	}
	#ifdef LIBALIAS_DEBUG
	else {
	- fprintf(stderr, "PacketAliasRedirectProto(): "
	+ fprintf(stderr,
	+ "PacketAliasRedirectProto(): "
	"call to AddLink() failed\n");
	}
	#endif
	@@ -2081,16 +1991,15 @@
	struct alias_link *lnk;

	LIBALIAS_LOCK(la);
	- lnk = AddLink(la, src_addr, ANY_ADDR, alias_addr,
	- 0, 0, 0,
	- LINK_ADDR);
	+ lnk = AddLink(la, src_addr, ANY_ADDR, alias_addr, 0, 0, 0, LINK_ADDR);

	if (lnk != NULL) {
	lnk->flags \|= LINK_PERMANENT;
	}
	#ifdef LIBALIAS_DEBUG
	else {
	- fprintf(stderr, "PacketAliasRedirectAddr(): "
	+ fprintf(stderr,
	+ "PacketAliasRedirectAddr(): "
	"call to AddLink() failed\n");
	}
	#endif
	@@ -2133,8 +2042,8 @@
	LibAliasSetAddress(struct libalias *la, struct in_addr addr)
	{
	LIBALIAS_LOCK(la);
	- if (la->packetAliasMode & PKT_ALIAS_RESET_ON_ADDR_CHANGE
	- && la->aliasAddress.s_addr != addr.s_addr)
	+ if (la->packetAliasMode & PKT_ALIAS_RESET_ON_ADDR_CHANGE &&
	+ la->aliasAddress.s_addr != addr.s_addr)
	CleanupAliasData(la, 0);

	la->aliasAddress = addr;
	@@ -2148,7 +2057,8 @@
	LIBALIAS_LOCK(la);
	if (port_low) {
	la->aliasPortLower = port_low;
	- /* Add 1 to the aliasPortLength as modulo has range of 1 to n-1 */
	+ /* Add 1 to the aliasPortLength as modulo has range of 1 to n-1
	+ */
	la->aliasPortLength = port_high - port_low + 1;
	} else {
	/* Set default values */
	@@ -2178,7 +2088,7 @@
	{
	if (la == NULL) {
	#ifdef _KERNEL
	-#undef malloc /* XXX: ugly */
	+#undef malloc /* XXX: ugly */
	la = malloc(sizeof *la, M_ALIAS, M_WAITOK \| M_ZERO);
	#else
	la = calloc(1, sizeof *la);
	@@ -2268,11 +2178,10 @@

	/* Change mode for some operations */
	unsigned int
	-LibAliasSetMode(
	- struct libalias *la,
	- unsigned int flags, /* Which state to bring flags to */
	- unsigned int mask /* Mask of which flags to affect (use 0 to
	- * do a probe for flag values) */
	+LibAliasSetMode(struct libalias *la,
	+ unsigned int flags, /* Which state to bring flags to */
	+ unsigned int mask /* Mask of which flags to affect (use 0 to
	+ * do a probe for flag values) */
	)
	{
	int res = -1;
	@@ -2313,8 +2222,9 @@
	/* Firewall include files */
	#include <net/if.h>
	#include <netinet/ip_fw.h>
	-#include <string.h>
	+
	#include <err.h>
	+#include <string.h>

	/*
	* helper function, updates the pointer to cmd with the length
	@@ -2322,7 +2232,7 @@
	* the new command in case it has been clobbered before.
	*/
	static ipfw_insn *
	-next_cmd(ipfw_insn * cmd)
	+next_cmd(ipfw_insn *cmd)
	{
	cmd += F_LEN(cmd);
	bzero(cmd, sizeof(*cmd));
	@@ -2334,8 +2244,8 @@
	* Existing flags are preserved.
	*/
	static ipfw_insn *
	-fill_cmd(ipfw_insn * cmd, enum ipfw_opcodes opcode, int size,
	- int flags, u_int16_t arg)
	+fill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int size, int flags,
	+ u_int16_t arg)
	{
	cmd->opcode = opcode;
	cmd->len = ((cmd->len \| flags) & (F_NOT \| F_OR)) \| (size & F_LEN_MASK);
	@@ -2344,7 +2254,7 @@
	}

	static ipfw_insn *
	-fill_ip(ipfw_insn * cmd1, enum ipfw_opcodes opcode, u_int32_t addr)
	+fill_ip(ipfw_insn *cmd1, enum ipfw_opcodes opcode, u_int32_t addr)
	{
	ipfw_insn_ip cmd = (ipfw_insn_ip )cmd1;

	@@ -2353,7 +2263,7 @@
	}

	static ipfw_insn *
	-fill_one_port(ipfw_insn * cmd1, enum ipfw_opcodes opcode, u_int16_t port)
	+fill_one_port(ipfw_insn *cmd1, enum ipfw_opcodes opcode, u_int16_t port)
	{
	ipfw_insn_u16 cmd = (ipfw_insn_u16 )cmd1;

	@@ -2362,9 +2272,8 @@
	}

	static int
	-fill_rule(void *buf, int bufsize, int rulenum,
	- enum ipfw_opcodes action, int proto,
	- struct in_addr sa, u_int16_t sp, struct in_addr da, u_int16_t dp)
	+fill_rule(void *buf, int bufsize, int rulenum, enum ipfw_opcodes action,
	+ int proto, struct in_addr sa, u_int16_t sp, struct in_addr da, u_int16_t dp)
	{
	struct ip_fw rule = (struct ip_fw )buf;
	ipfw_insn cmd = (ipfw_insn )rule->cmd;
	@@ -2418,15 +2327,14 @@
	PunchFWHole(struct alias_link *lnk)
	{
	struct libalias *la;
	- int r; /* Result code */
	- struct ip_fw rule; /* On-the-fly built rule */
	- int fwhole; /* Where to punch hole */
	+ int r; /* Result code */
	+ struct ip_fw rule; /* On-the-fly built rule */
	+ int fwhole; /* Where to punch hole */

	la = lnk->la;

	/* Don't do anything unless we are asked to */
	- if (!(la->packetAliasMode & PKT_ALIAS_PUNCH_FW) \|\|
	- la->fireWallFD < 0 \|\|
	+ if (!(la->packetAliasMode & PKT_ALIAS_PUNCH_FW) \|\| la->fireWallFD < 0 \|\|
	lnk->link_type != LINK_TCP)
	return;

	@@ -2438,17 +2346,20 @@
	for (fwhole = la->fireWallActiveNum;
	fwhole < la->fireWallBaseNum + la->fireWallNumNums &&
	fw_tstfield(la, la->fireWallField, fwhole);
	- fwhole++);
	+ fwhole++)
	+ ;
	if (fwhole == la->fireWallBaseNum + la->fireWallNumNums) {
	for (fwhole = la->fireWallBaseNum;
	fwhole < la->fireWallActiveNum &&
	fw_tstfield(la, la->fireWallField, fwhole);
	- fwhole++);
	+ fwhole++)
	+ ;
	if (fwhole == la->fireWallActiveNum) {
	/* No rule point empty - we can't punch more holes. */
	la->fireWallActiveNum = la->fireWallBaseNum;
	#ifdef LIBALIAS_DEBUG
	- fprintf(stderr, "libalias: Unable to create firewall hole!\n");
	+ fprintf(stderr,
	+ "libalias: Unable to create firewall hole!\n");
	#endif
	return;
	}
	@@ -2466,19 +2377,20 @@
	u_int32_t rulebuf[255];
	int i;

	- i = fill_rule(rulebuf, sizeof(rulebuf), fwhole,
	- O_ACCEPT, IPPROTO_TCP,
	- GetOriginalAddress(lnk), ntohs(GetOriginalPort(lnk)),
	- GetDestAddress(lnk), ntohs(GetDestPort(lnk)));
	- r = setsockopt(la->fireWallFD, IPPROTO_IP, IP_FW_ADD, rulebuf, i);
	+ i = fill_rule(rulebuf, sizeof(rulebuf), fwhole, O_ACCEPT,
	+ IPPROTO_TCP, GetOriginalAddress(lnk),
	+ ntohs(GetOriginalPort(lnk)), GetDestAddress(lnk),
	+ ntohs(GetDestPort(lnk)));
	+ r = setsockopt(la->fireWallFD, IPPROTO_IP, IP_FW_ADD, rulebuf,
	+ i);
	if (r)
	err(1, "alias punch inbound(1) setsockopt(IP_FW_ADD)");

	- i = fill_rule(rulebuf, sizeof(rulebuf), fwhole,
	- O_ACCEPT, IPPROTO_TCP,
	- GetDestAddress(lnk), ntohs(GetDestPort(lnk)),
	+ i = fill_rule(rulebuf, sizeof(rulebuf), fwhole, O_ACCEPT,
	+ IPPROTO_TCP, GetDestAddress(lnk), ntohs(GetDestPort(lnk)),
	GetOriginalAddress(lnk), ntohs(GetOriginalPort(lnk)));
	- r = setsockopt(la->fireWallFD, IPPROTO_IP, IP_FW_ADD, rulebuf, i);
	+ r = setsockopt(la->fireWallFD, IPPROTO_IP, IP_FW_ADD, rulebuf,
	+ i);
	if (r)
	err(1, "alias punch inbound(2) setsockopt(IP_FW_ADD)");
	}
	@@ -2497,15 +2409,17 @@

	la = lnk->la;
	if (lnk->link_type == LINK_TCP) {
	- int fwhole = lnk->data.tcp->fwhole; /* Where is the firewall hole? */
	+ int fwhole =
	+ lnk->data.tcp->fwhole; /* Where is the firewall hole? */
	struct ip_fw rule;

	if (fwhole < 0)
	return;

	- memset(&rule, 0, sizeof rule); /* useless for ipfw2 */
	+ memset(&rule, 0, sizeof rule); /* useless for ipfw2 */
	while (!setsockopt(la->fireWallFD, IPPROTO_IP, IP_FW_DEL,
	- &fwhole, sizeof fwhole));
	+ &fwhole, sizeof fwhole))
	+ ;
	fw_clrfield(la, la->fireWallField, fwhole);
	lnk->data.tcp->fwhole = -1;
	}
	@@ -2515,17 +2429,20 @@
	static void
	ClearAllFWHoles(struct libalias *la)
	{
	- struct ip_fw rule; /* On-the-fly built rule */
	+ struct ip_fw rule; /* On-the-fly built rule */
	int i;

	if (la->fireWallFD < 0)
	return;

	memset(&rule, 0, sizeof rule);
	- for (i = la->fireWallBaseNum; i < la->fireWallBaseNum + la->fireWallNumNums; i++) {
	+ for (i = la->fireWallBaseNum;
	+ i < la->fireWallBaseNum + la->fireWallNumNums; i++) {
	int r = i;

	- while (!setsockopt(la->fireWallFD, IPPROTO_IP, IP_FW_DEL, &r, sizeof r));
	+ while (!setsockopt(la->fireWallFD, IPPROTO_IP, IP_FW_DEL, &r,
	+ sizeof r))
	+ ;
	}
	/* XXX: third arg correct here ? /phk */
	memset(la->fireWallField, 0, la->fireWallNumNums);
	@@ -2556,24 +2473,24 @@
	* Find the address to redirect incoming packets
	*/
	struct in_addr
	-FindSctpRedirectAddress(struct libalias la, struct sctp_nat_msg sm)
	+FindSctpRedirectAddress(struct libalias la, struct sctp_nat_msg sm)
	{
	struct alias_link *lnk;
	struct in_addr redir;

	LIBALIAS_LOCK_ASSERT(la);
	lnk = FindLinkIn(la, sm->ip_hdr->ip_src, sm->ip_hdr->ip_dst,
	- sm->sctp_hdr->dest_port,sm->sctp_hdr->dest_port, LINK_SCTP, 1);
	+ sm->sctp_hdr->dest_port, sm->sctp_hdr->dest_port, LINK_SCTP, 1);
	if (lnk != NULL) {
	/* port redirect */
	return (lnk->src_addr);
	} else {
	- redir = FindOriginalAddress(la,sm->ip_hdr->ip_dst);
	+ redir = FindOriginalAddress(la, sm->ip_hdr->ip_dst);
	if (redir.s_addr == la->aliasAddress.s_addr \|\|
	redir.s_addr == la->targetAddress.s_addr) {
	/* No address found */
	- lnk = FindLinkIn(la, sm->ip_hdr->ip_src, sm->ip_hdr->ip_dst,
	- NO_DEST_PORT, 0, LINK_SCTP, 1);
	+ lnk = FindLinkIn(la, sm->ip_hdr->ip_src,
	+ sm->ip_hdr->ip_dst, NO_DEST_PORT, 0, LINK_SCTP, 1);
	if (lnk != NULL)
	/* redirect proto */
	return (lnk->src_addr);
	Index: sys/netinet/libalias/alias_dummy.c
	===================================================================
	--- sys/netinet/libalias/alias_dummy.c
	+++ sys/netinet/libalias/alias_dummy.c
	@@ -38,13 +38,14 @@
	#include <sys/kernel.h>
	#include <sys/module.h>
	#else
	-#include <errno.h>
	#include <sys/types.h>
	+
	+#include <errno.h>
	#include <stdio.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/udp.h>

	@@ -56,8 +57,8 @@
	#include "alias_mod.h"
	#endif

	-static void
	-AliasHandleDummy(struct libalias la, struct ip ip, struct alias_data *ah);
	+static void AliasHandleDummy(struct libalias la, struct ip ip,
	+ struct alias_data *ah);

	static int
	fingerprint(struct libalias la, struct alias_data ah)
	@@ -74,8 +75,8 @@
	* return an OK value.
	*/
	if (ntohs(ah->dport) == 123 \|\| ntohs(ah->sport) == 456)
	- return (0); /* I know how to handle it. */
	- return (-1); /* I don't recognize this packet. */
	+ return (0); /* I know how to handle it. */
	+ return (-1); /* I don't recognize this packet. */
	}

	/*
	@@ -98,16 +99,12 @@
	* ITS EXACT NAME: handlers.
	*/

	-struct proto_handler handlers [] = {
	- {
	- .pri = 666,
	- .dir = IN\|OUT,
	- .proto = UDP\|TCP,
	- .fingerprint = &fingerprint,
	- .protohandler = &protohandler
	- },
	- { EOH }
	-};
	+struct proto_handler handlers[] = { { .pri = 666,
	+ .dir = IN \| OUT,
	+ .proto = UDP \| TCP,
	+ .fingerprint = &fingerprint,
	+ .protohandler = &protohandler },
	+ { EOH } };

	static int
	mod_handler(module_t mod, int type, void *data)
	@@ -132,9 +129,7 @@
	#ifdef _KERNEL
	static
	#endif
	-moduledata_t alias_mod = {
	- "alias_dummy", mod_handler, NULL
	-};
	+ moduledata_t alias_mod = { "alias_dummy", mod_handler, NULL };

	#ifdef _KERNEL
	DECLARE_MODULE(alias_dummy, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
	Index: sys/netinet/libalias/alias_ftp.c
	===================================================================
	--- sys/netinet/libalias/alias_ftp.c
	+++ sys/netinet/libalias/alias_ftp.c
	@@ -70,20 +70,21 @@
	/* Includes */
	#ifdef _KERNEL
	#include <sys/param.h>
	-#include <sys/ctype.h>
	#include <sys/systm.h>
	+#include <sys/ctype.h>
	#include <sys/kernel.h>
	#include <sys/module.h>
	#else
	+#include <sys/types.h>
	+
	#include <ctype.h>
	#include <errno.h>
	-#include <sys/types.h>
	#include <stdio.h>
	#include <string.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/tcp.h>

	@@ -98,11 +99,10 @@

	#define FTP_CONTROL_PORT_NUMBER 21

	-static void
	-AliasHandleFtpOut(struct libalias , struct ip , struct alias_link *,
	- int maxpacketsize);
	-static void
	-AliasHandleFtpIn(struct libalias , struct ip , struct alias_link *);
	+static void AliasHandleFtpOut(struct libalias , struct ip ,
	+ struct alias_link *, int maxpacketsize);
	+static void AliasHandleFtpIn(struct libalias , struct ip ,
	+ struct alias_link *);

	static int
	fingerprint_out(struct libalias la, struct alias_data ah)
	@@ -141,23 +141,17 @@
	return (0);
	}

	-struct proto_handler handlers[] = {
	- {
	- .pri = 80,
	- .dir = OUT,
	- .proto = TCP,
	- .fingerprint = &fingerprint_out,
	- .protohandler = &protohandler_out
	- },
	- {
	- .pri = 80,
	- .dir = IN,
	- .proto = TCP,
	- .fingerprint = &fingerprint_in,
	- .protohandler = &protohandler_in
	- },
	- { EOH }
	-};
	+struct proto_handler handlers[] = { { .pri = 80,
	+ .dir = OUT,
	+ .proto = TCP,
	+ .fingerprint = &fingerprint_out,
	+ .protohandler = &protohandler_out },
	+ { .pri = 80,
	+ .dir = IN,
	+ .proto = TCP,
	+ .fingerprint = &fingerprint_in,
	+ .protohandler = &protohandler_in },
	+ { EOH } };

	static int
	mod_handler(module_t mod, int type, void *data)
	@@ -182,9 +176,7 @@
	#ifdef _KERNEL
	static
	#endif
	-moduledata_t alias_mod = {
	- "alias_ftp", mod_handler, NULL
	-};
	+ moduledata_t alias_mod = { "alias_ftp", mod_handler, NULL };

	#ifdef _KERNEL
	DECLARE_MODULE(alias_ftp, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
	@@ -196,7 +188,7 @@
	#define MAX_MESSAGE_SIZE 128

	/* FTP protocol flags. */
	-#define WAIT_CRLF 0x01
	+#define WAIT_CRLF 0x01

	enum ftp_message_type {
	FTP_PORT_COMMAND,
	@@ -206,11 +198,12 @@
	FTP_UNKNOWN_MESSAGE
	};

	-static int ParseFtpPortCommand(struct libalias la, char , int);
	-static int ParseFtpEprtCommand(struct libalias la, char , int);
	-static int ParseFtp227Reply(struct libalias la, char , int);
	-static int ParseFtp229Reply(struct libalias la, char , int);
	-static void NewFtpMessage(struct libalias la, struct ip , struct alias_link *, int, int);
	+static int ParseFtpPortCommand(struct libalias la, char , int);
	+static int ParseFtpEprtCommand(struct libalias la, char , int);
	+static int ParseFtp227Reply(struct libalias la, char , int);
	+static int ParseFtp229Reply(struct libalias la, char , int);
	+static void NewFtpMessage(struct libalias la, struct ip , struct alias_link *,
	+ int, int);

	static void
	AliasHandleFtpOut(
	@@ -244,13 +237,15 @@
	ftp_message_type = FTP_UNKNOWN_MESSAGE;

	if (ntohs(tc->th_dport) == FTP_CONTROL_PORT_NUMBER) {
	- /* When aliasing a client, check for the PORT/EPRT command. */
	+ /* When aliasing a client, check for the PORT/EPRT
	+ * command. */
	if (ParseFtpPortCommand(la, sptr, dlen))
	ftp_message_type = FTP_PORT_COMMAND;
	else if (ParseFtpEprtCommand(la, sptr, dlen))
	ftp_message_type = FTP_EPRT_COMMAND;
	} else {
	- /* When aliasing a server, check for the 227/229 reply. */
	+ /* When aliasing a server, check for the 227/229 reply.
	+ */
	if (ParseFtp227Reply(la, sptr, dlen))
	ftp_message_type = FTP_227_REPLY;
	else if (ParseFtp229Reply(la, sptr, dlen)) {
	@@ -260,12 +255,13 @@
	}

	if (ftp_message_type != FTP_UNKNOWN_MESSAGE)
	- NewFtpMessage(la, pip, lnk, maxpacketsize, ftp_message_type);
	+ NewFtpMessage(la, pip, lnk, maxpacketsize,
	+ ftp_message_type);
	}

	/* Track the msgs which are CRLF term'd for PORT/PASV FW breach */
	- if (dlen) { /* only if there's data */
	- sptr = (char )pip; / start over at beginning */
	+ if (dlen) { /* only if there's data */
	+ sptr = (char )pip; / start over at beginning */
	tlen = ntohs(pip->ip_len); /* recalc tlen, pkt may have grown */
	if (sptr[tlen - 2] == '\r' && sptr[tlen - 1] == '\n')
	pflags &= ~WAIT_CRLF;
	@@ -277,8 +273,8 @@

	static void
	AliasHandleFtpIn(struct libalias *la,
	- struct ip pip, / IP packet to examine/patch */
	- struct alias_link lnk) / The link to go through (aliased port) */
	+ struct ip pip, / IP packet to examine/patch */
	+ struct alias_link lnk) / The link to go through (aliased port) */
	{
	int hlen, tlen, dlen, pflags;
	char *sptr;
	@@ -302,7 +298,7 @@
	if (dlen <= MAX_MESSAGE_SIZE && (pflags & WAIT_CRLF) == 0 &&
	ntohs(tc->th_dport) == FTP_CONTROL_PORT_NUMBER &&
	(ParseFtpPortCommand(la, sptr, dlen) != 0 \|\|
	- ParseFtpEprtCommand(la, sptr, dlen) != 0)) {
	+ ParseFtpEprtCommand(la, sptr, dlen) != 0)) {
	/*
	* Alias active mode client requesting data from server
	* behind NAT. We need to alias server->client connection
	@@ -314,15 +310,15 @@
	}
	/* Track the msgs which are CRLF term'd for PORT/PASV FW breach */
	if (dlen) {
	- sptr = (char )pip; / start over at beginning */
	- tlen = ntohs(pip->ip_len); /* recalc tlen, pkt may
	- * have grown. */
	+ sptr = (char )pip; / start over at beginning */
	+ tlen = ntohs(pip->ip_len); /* recalc tlen, pkt may
	+ * have grown. */
	if (sptr[tlen - 2] == '\r' && sptr[tlen - 1] == '\n')
	pflags &= ~WAIT_CRLF;
	else
	pflags \|= WAIT_CRLF;
	SetProtocolFlags(lnk, pflags);
	- }
	+ }
	}

	static int
	@@ -417,7 +413,7 @@
	return (0);

	addr = port = octet = 0;
	- delim = '\|'; /* XXX gcc -Wuninitialized */
	+ delim = '\|'; /* XXX gcc -Wuninitialized */
	state = 0;
	for (i = 5; i < dlen; i++) {
	ch = sptr[i];
	@@ -429,7 +425,7 @@
	}
	break;
	case 1:
	- if (ch == '1') /* IPv4 address */
	+ if (ch == '1') /* IPv4 address */
	state++;
	else
	return (0);
	@@ -578,7 +574,7 @@
	return (0);

	port = 0;
	- delim = '\|'; /* XXX gcc -Wuninitialized */
	+ delim = '\|'; /* XXX gcc -Wuninitialized */

	state = 0;
	for (i = 4; i < dlen; i++) {
	@@ -631,10 +627,8 @@
	}

	static void
	-NewFtpMessage(struct libalias la, struct ip pip,
	- struct alias_link *lnk,
	- int maxpacketsize,
	- int ftp_message_type)
	+NewFtpMessage(struct libalias la, struct ip pip, struct alias_link *lnk,
	+ int maxpacketsize, int ftp_message_type)
	{
	struct alias_link *ftp_lnk;

	@@ -695,8 +689,9 @@

	if (ftp_message_type == FTP_PORT_COMMAND) {
	/* Generate PORT command string. */
	- sprintf(stemp, "PORT %d,%d,%d,%d,%d,%d\r\n",
	- a1, a2, a3, a4, p1, p2);
	+ sprintf(stemp,
	+ "PORT %d,%d,%d,%d,%d,%d\r\n", a1,
	+ a2, a3, a4, p1, p2);
	} else {
	/* Generate 227 reply string. */
	sprintf(stemp,
	@@ -711,7 +706,8 @@
	break;
	case FTP_229_REPLY:
	/* Generate 229 reply string. */
	- sprintf(stemp, "229 Entering Extended Passive Mode (\|\|\|%d\|)\r\n",
	+ sprintf(stemp,
	+ "229 Entering Extended Passive Mode (\|\|\|%d\|)\r\n",
	ntohs(alias_port));
	break;
	}
	@@ -740,12 +736,9 @@
	{
	u_short new_len;

	- new_len = htons(hlen +
	- MIN(slen, maxpacketsize - hlen));
	- DifferentialChecksum(&pip->ip_sum,
	- &new_len,
	- &pip->ip_len,
	- 1);
	+ new_len = htons(hlen + MIN(slen, maxpacketsize - hlen));
	+ DifferentialChecksum(&pip->ip_sum, &new_len,
	+ &pip->ip_len, 1);
	pip->ip_len = new_len;
	}

	Index: sys/netinet/libalias/alias_irc.c
	===================================================================
	--- sys/netinet/libalias/alias_irc.c
	+++ sys/netinet/libalias/alias_irc.c
	@@ -50,23 +50,24 @@
	/* Includes */
	#ifdef _KERNEL
	#include <sys/param.h>
	-#include <sys/ctype.h>
	-#include <sys/limits.h>
	#include <sys/systm.h>
	+#include <sys/ctype.h>
	#include <sys/kernel.h>
	+#include <sys/limits.h>
	#include <sys/module.h>
	#else
	+#include <sys/types.h>
	+
	#include <ctype.h>
	#include <errno.h>
	-#include <sys/types.h>
	+#include <limits.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	-#include <limits.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/tcp.h>

	@@ -82,23 +83,22 @@
	#define IRC_CONTROL_PORT_NUMBER_1 6667
	#define IRC_CONTROL_PORT_NUMBER_2 6668

	-#define PKTSIZE (IP_MAXPACKET + 1)
	+#define PKTSIZE (IP_MAXPACKET + 1)
	char *newpacket;

	/* Local defines */
	#define DBprintf(a)

	-static void
	-AliasHandleIrcOut(struct libalias , struct ip , struct alias_link *,
	- int maxpacketsize);
	+static void AliasHandleIrcOut(struct libalias , struct ip ,
	+ struct alias_link *, int maxpacketsize);

	static int
	fingerprint(struct libalias la, struct alias_data ah)
	{
	if (ah->dport == NULL \|\| ah->lnk == NULL \|\| ah->maxpktsize == 0)
	return (-1);
	- if (ntohs(*ah->dport) == IRC_CONTROL_PORT_NUMBER_1
	- \|\| ntohs(*ah->dport) == IRC_CONTROL_PORT_NUMBER_2)
	+ if (ntohs(*ah->dport) == IRC_CONTROL_PORT_NUMBER_1 \|\|
	+ ntohs(*ah->dport) == IRC_CONTROL_PORT_NUMBER_2)
	return (0);
	return (-1);
	}
	@@ -114,16 +114,12 @@
	return (0);
	}

	-struct proto_handler handlers[] = {
	- {
	- .pri = 90,
	- .dir = OUT,
	- .proto = TCP,
	- .fingerprint = &fingerprint,
	- .protohandler = &protohandler
	- },
	- { EOH }
	-};
	+struct proto_handler handlers[] = { { .pri = 90,
	+ .dir = OUT,
	+ .proto = TCP,
	+ .fingerprint = &fingerprint,
	+ .protohandler = &protohandler },
	+ { EOH } };

	static int
	mod_handler(module_t mod, int type, void *data)
	@@ -148,9 +144,7 @@
	#ifdef _KERNEL
	static
	#endif
	-moduledata_t alias_mod = {
	- "alias_irc", mod_handler, NULL
	-};
	+ moduledata_t alias_mod = { "alias_irc", mod_handler, NULL };

	/* Kernel module definition. */
	#ifdef _KERNEL
	@@ -161,10 +155,10 @@

	static void
	AliasHandleIrcOut(struct libalias *la,
	- struct ip pip, / IP packet to examine */
	- struct alias_link lnk, / Which link are we on? */
	- int maxsize /* Maximum size of IP packet including
	- * headers */
	+ struct ip pip, / IP packet to examine */
	+ struct alias_link lnk, / Which link are we on? */
	+ int maxsize /* Maximum size of IP packet including
	+ * headers */
	)
	{
	int hlen, tlen, dlen;
	@@ -172,7 +166,7 @@
	u_short true_port;
	char *sptr;
	struct tcphdr *tc;
	- int i; /* Iterator through the source */
	+ int i; /* Iterator through the source */

	/* Calculate data length of TCP packet */
	tc = (struct tcphdr *)ip_next(pip);
	@@ -190,287 +184,288 @@
	/* Place string pointer at beginning of data */
	sptr = (char *)pip;
	sptr += hlen;
	- maxsize -= hlen; /* We're interested in maximum size of
	- * data, not packet */
	+ maxsize -= hlen; /* We're interested in maximum size of
	+ * data, not packet */

	/* Search for a CTCP command [Note 1] */
	for (i = 0; i < dlen; i++) {
	if (sptr[i] == '\001')
	goto lFOUND_CTCP;
	}
	- return; /* No CTCP commands in */
	- /* Handle CTCP commands - the buffer may have to be copied */
	- lFOUND_CTCP:
	- {
	- unsigned int copyat = i;
	- unsigned int iCopy = 0; /* How much data have we written to
	- * copy-back string? */
	- unsigned long org_addr; /* Original IP address */
	- unsigned short org_port; /* Original source port
	- * address */
	-
	- lCTCP_START:
	- if (i >= dlen \|\| iCopy >= PKTSIZE)
	- goto lPACKET_DONE;
	- newpacket[iCopy++] = sptr[i++]; /* Copy the CTCP start
	- * character */
	- /* Start of a CTCP */
	- if (i + 4 >= dlen) /* Too short for DCC */
	- goto lBAD_CTCP;
	- if (sptr[i + 0] != 'D')
	- goto lBAD_CTCP;
	- if (sptr[i + 1] != 'C')
	- goto lBAD_CTCP;
	- if (sptr[i + 2] != 'C')
	- goto lBAD_CTCP;
	- if (sptr[i + 3] != ' ')
	- goto lBAD_CTCP;
	- /* We have a DCC command - handle it! */
	- i += 4; /* Skip "DCC " */
	- if (iCopy + 4 > PKTSIZE)
	- goto lPACKET_DONE;
	- newpacket[iCopy++] = 'D';
	- newpacket[iCopy++] = 'C';
	- newpacket[iCopy++] = 'C';
	- newpacket[iCopy++] = ' ';
	+ return; /* No CTCP commands in */
	+/* Handle CTCP commands - the buffer may have to be copied */
	+lFOUND_CTCP: {
	+ unsigned int copyat = i;
	+ unsigned int iCopy = 0; /* How much data have we written to
	+ * copy-back string? */
	+ unsigned long org_addr; /* Original IP address */
	+ unsigned short org_port; /* Original source port
	+ * address */
	+
	+lCTCP_START:
	+ if (i >= dlen \|\| iCopy >= PKTSIZE)
	+ goto lPACKET_DONE;
	+ newpacket[iCopy++] = sptr[i++]; /* Copy the CTCP start
	+ * character */
	+ /* Start of a CTCP */
	+ if (i + 4 >= dlen) /* Too short for DCC */
	+ goto lBAD_CTCP;
	+ if (sptr[i + 0] != 'D')
	+ goto lBAD_CTCP;
	+ if (sptr[i + 1] != 'C')
	+ goto lBAD_CTCP;
	+ if (sptr[i + 2] != 'C')
	+ goto lBAD_CTCP;
	+ if (sptr[i + 3] != ' ')
	+ goto lBAD_CTCP;
	+ /* We have a DCC command - handle it! */
	+ i += 4; /* Skip "DCC " */
	+ if (iCopy + 4 > PKTSIZE)
	+ goto lPACKET_DONE;
	+ newpacket[iCopy++] = 'D';
	+ newpacket[iCopy++] = 'C';
	+ newpacket[iCopy++] = 'C';
	+ newpacket[iCopy++] = ' ';

	- DBprintf(("Found DCC\n"));
	- /*
	- * Skip any extra spaces (should not occur according to
	- * protocol, but DCC breaks CTCP protocol anyway
	- */
	- while (sptr[i] == ' ') {
	- if (++i >= dlen) {
	- DBprintf(("DCC packet terminated in just spaces\n"));
	- goto lPACKET_DONE;
	- }
	+ DBprintf(("Found DCC\n"));
	+ /*
	+ * Skip any extra spaces (should not occur according to
	+ * protocol, but DCC breaks CTCP protocol anyway
	+ */
	+ while (sptr[i] == ' ') {
	+ if (++i >= dlen) {
	+ DBprintf(("DCC packet terminated in just spaces\n"));
	+ goto lPACKET_DONE;
	}
	+ }

	- DBprintf(("Transferring command...\n"));
	- while (sptr[i] != ' ') {
	- newpacket[iCopy++] = sptr[i];
	- if (++i >= dlen \|\| iCopy >= PKTSIZE) {
	- DBprintf(("DCC packet terminated during command\n"));
	- goto lPACKET_DONE;
	- }
	+ DBprintf(("Transferring command...\n"));
	+ while (sptr[i] != ' ') {
	+ newpacket[iCopy++] = sptr[i];
	+ if (++i >= dlen \|\| iCopy >= PKTSIZE) {
	+ DBprintf(("DCC packet terminated during command\n"));
	+ goto lPACKET_DONE;
	}
	- /* Copy _one_ space */
	- if (i + 1 < dlen && iCopy < PKTSIZE)
	- newpacket[iCopy++] = sptr[i++];
	+ }
	+ /* Copy _one_ space */
	+ if (i + 1 < dlen && iCopy < PKTSIZE)
	+ newpacket[iCopy++] = sptr[i++];

	- DBprintf(("Done command - removing spaces\n"));
	- /*
	- * Skip any extra spaces (should not occur according to
	- * protocol, but DCC breaks CTCP protocol anyway
	- */
	- while (sptr[i] == ' ') {
	- if (++i >= dlen) {
	- DBprintf(("DCC packet terminated in just spaces (post-command)\n"));
	- goto lPACKET_DONE;
	- }
	+ DBprintf(("Done command - removing spaces\n"));
	+ /*
	+ * Skip any extra spaces (should not occur according to
	+ * protocol, but DCC breaks CTCP protocol anyway
	+ */
	+ while (sptr[i] == ' ') {
	+ if (++i >= dlen) {
	+ DBprintf((
	+ "DCC packet terminated in just spaces (post-command)\n"));
	+ goto lPACKET_DONE;
	}
	+ }

	- DBprintf(("Transferring filename...\n"));
	- while (sptr[i] != ' ') {
	- newpacket[iCopy++] = sptr[i];
	- if (++i >= dlen \|\| iCopy >= PKTSIZE) {
	- DBprintf(("DCC packet terminated during filename\n"));
	- goto lPACKET_DONE;
	- }
	+ DBprintf(("Transferring filename...\n"));
	+ while (sptr[i] != ' ') {
	+ newpacket[iCopy++] = sptr[i];
	+ if (++i >= dlen \|\| iCopy >= PKTSIZE) {
	+ DBprintf(("DCC packet terminated during filename\n"));
	+ goto lPACKET_DONE;
	}
	- /* Copy _one_ space */
	- if (i + 1 < dlen && iCopy < PKTSIZE)
	- newpacket[iCopy++] = sptr[i++];
	+ }
	+ /* Copy _one_ space */
	+ if (i + 1 < dlen && iCopy < PKTSIZE)
	+ newpacket[iCopy++] = sptr[i++];

	- DBprintf(("Done filename - removing spaces\n"));
	- /*
	- * Skip any extra spaces (should not occur according to
	- * protocol, but DCC breaks CTCP protocol anyway
	- */
	- while (sptr[i] == ' ') {
	- if (++i >= dlen) {
	- DBprintf(("DCC packet terminated in just spaces (post-filename)\n"));
	- goto lPACKET_DONE;
	- }
	+ DBprintf(("Done filename - removing spaces\n"));
	+ /*
	+ * Skip any extra spaces (should not occur according to
	+ * protocol, but DCC breaks CTCP protocol anyway
	+ */
	+ while (sptr[i] == ' ') {
	+ if (++i >= dlen) {
	+ DBprintf((
	+ "DCC packet terminated in just spaces (post-filename)\n"));
	+ goto lPACKET_DONE;
	}
	+ }

	- DBprintf(("Fetching IP address\n"));
	- /* Fetch IP address */
	- org_addr = 0;
	- while (i < dlen && isdigit(sptr[i])) {
	- if (org_addr > ULONG_MAX / 10UL) { /* Terminate on overflow */
	- DBprintf(("DCC Address overflow (org_addr == 0x%08lx, next char %c\n", org_addr, sptr[i]));
	- goto lBAD_CTCP;
	- }
	- org_addr *= 10;
	- org_addr += sptr[i++] - '0';
	- }
	- DBprintf(("Skipping space\n"));
	- if (i + 1 >= dlen \|\| sptr[i] != ' ') {
	- DBprintf(("Overflow (%d >= %d) or bad character (%02x) terminating IP address\n", i + 1, dlen, sptr[i]));
	+ DBprintf(("Fetching IP address\n"));
	+ /* Fetch IP address */
	+ org_addr = 0;
	+ while (i < dlen && isdigit(sptr[i])) {
	+ if (org_addr > ULONG_MAX / 10UL) { /* Terminate on overflow */
	+ DBprintf((
	+ "DCC Address overflow (org_addr == 0x%08lx, next char %c\n",
	+ org_addr, sptr[i]));
	goto lBAD_CTCP;
	}
	- /*
	- * Skip any extra spaces (should not occur according to
	- * protocol, but DCC breaks CTCP protocol anyway, so we
	- * might as well play it safe
	- */
	- while (sptr[i] == ' ') {
	- if (++i >= dlen) {
	- DBprintf(("Packet failure - space overflow.\n"));
	- goto lPACKET_DONE;
	- }
	- }
	- DBprintf(("Fetching port number\n"));
	- /* Fetch source port */
	- org_port = 0;
	- while (i < dlen && isdigit(sptr[i])) {
	- if (org_port > 6554) { /* Terminate on overflow
	- * (65536/10 rounded up */
	- DBprintf(("DCC: port number overflow\n"));
	- goto lBAD_CTCP;
	- }
	- org_port *= 10;
	- org_port += sptr[i++] - '0';
	+ org_addr *= 10;
	+ org_addr += sptr[i++] - '0';
	+ }
	+ DBprintf(("Skipping space\n"));
	+ if (i + 1 >= dlen \|\| sptr[i] != ' ') {
	+ DBprintf((
	+ "Overflow (%d >= %d) or bad character (%02x) terminating IP address\n",
	+ i + 1, dlen, sptr[i]));
	+ goto lBAD_CTCP;
	+ }
	+ /*
	+ * Skip any extra spaces (should not occur according to
	+ * protocol, but DCC breaks CTCP protocol anyway, so we
	+ * might as well play it safe
	+ */
	+ while (sptr[i] == ' ') {
	+ if (++i >= dlen) {
	+ DBprintf(("Packet failure - space overflow.\n"));
	+ goto lPACKET_DONE;
	}
	- /* Skip illegal addresses (or early termination) */
	- if (i >= dlen \|\| (sptr[i] != '\001' && sptr[i] != ' ')) {
	- DBprintf(("Bad port termination\n"));
	+ }
	+ DBprintf(("Fetching port number\n"));
	+ /* Fetch source port */
	+ org_port = 0;
	+ while (i < dlen && isdigit(sptr[i])) {
	+ if (org_port > 6554) { /* Terminate on overflow
	+ * (65536/10 rounded up */
	+ DBprintf(("DCC: port number overflow\n"));
	goto lBAD_CTCP;
	}
	- DBprintf(("Got IP %lu and port %u\n", org_addr, (unsigned)org_port));
	+ org_port *= 10;
	+ org_port += sptr[i++] - '0';
	+ }
	+ /* Skip illegal addresses (or early termination) */
	+ if (i >= dlen \|\| (sptr[i] != '\001' && sptr[i] != ' ')) {
	+ DBprintf(("Bad port termination\n"));
	+ goto lBAD_CTCP;
	+ }
	+ DBprintf(("Got IP %lu and port %u\n", org_addr, (unsigned)org_port));

	- /* We've got the address and port - now alias it */
	- {
	- struct alias_link *dcc_lnk;
	- struct in_addr destaddr;
	+ /* We've got the address and port - now alias it */
	+ {
	+ struct alias_link *dcc_lnk;
	+ struct in_addr destaddr;

	- true_port = htons(org_port);
	- true_addr.s_addr = htonl(org_addr);
	- destaddr.s_addr = 0;
	+ true_port = htons(org_port);
	+ true_addr.s_addr = htonl(org_addr);
	+ destaddr.s_addr = 0;

	- /* Sanity/Security checking */
	- if (!org_addr \|\| !org_port \|\|
	- pip->ip_src.s_addr != true_addr.s_addr \|\|
	- org_port < IPPORT_RESERVED)
	- goto lBAD_CTCP;
	+ /* Sanity/Security checking */
	+ if (!org_addr \|\| !org_port \|\|
	+ pip->ip_src.s_addr != true_addr.s_addr \|\|
	+ org_port < IPPORT_RESERVED)
	+ goto lBAD_CTCP;

	- /*
	- * Steal the FTP_DATA_PORT - it doesn't really
	- * matter, and this would probably allow it through
	- * at least _some_ firewalls.
	- */
	- (void)FindUdpTcpOut(la, true_addr, destaddr,
	- true_port, 0,
	- IPPROTO_TCP, 1, &dcc_lnk);
	- DBprintf(("Got a DCC link\n"));
	- if (dcc_lnk) {
	- struct in_addr alias_address; /* Address from aliasing */
	- u_short alias_port; /* Port given by
	- * aliasing */
	- int n;
	+ /*
	+ * Steal the FTP_DATA_PORT - it doesn't really
	+ * matter, and this would probably allow it through
	+ * at least _some_ firewalls.
	+ */
	+ (void)FindUdpTcpOut(la, true_addr, destaddr, true_port, 0,
	+ IPPROTO_TCP, 1, &dcc_lnk);
	+ DBprintf(("Got a DCC link\n"));
	+ if (dcc_lnk) {
	+ struct in_addr
	+ alias_address; /* Address from aliasing */
	+ u_short alias_port; /* Port given by
	+ * aliasing */
	+ int n;

	#ifndef NO_FW_PUNCH
	- /* Generate firewall hole as appropriate */
	- PunchFWHole(dcc_lnk);
	+ /* Generate firewall hole as appropriate */
	+ PunchFWHole(dcc_lnk);
	#endif

	- alias_address = GetAliasAddress(lnk);
	- n = snprintf(&newpacket[iCopy],
	- PKTSIZE - iCopy,
	- "%lu ", (u_long) htonl(alias_address.s_addr));
	- if (n < 0) {
	- DBprintf(("DCC packet construct failure.\n"));
	- goto lBAD_CTCP;
	- }
	- if ((iCopy += n) >= PKTSIZE) { /* Truncated/fit exactly
	- * - bad news */
	- DBprintf(("DCC constructed packet overflow.\n"));
	- goto lBAD_CTCP;
	- }
	- alias_port = GetAliasPort(dcc_lnk);
	- n = snprintf(&newpacket[iCopy],
	- PKTSIZE - iCopy,
	- "%u", htons(alias_port));
	- if (n < 0) {
	- DBprintf(("DCC packet construct failure.\n"));
	- goto lBAD_CTCP;
	- }
	- iCopy += n;
	- /*
	- * Done - truncated cases will be taken
	- * care of by lBAD_CTCP
	- */
	- DBprintf(("Aliased IP %lu and port %u\n", alias_address.s_addr, (unsigned)alias_port));
	+ alias_address = GetAliasAddress(lnk);
	+ n = snprintf(&newpacket[iCopy], PKTSIZE - iCopy, "%lu ",
	+ (u_long)htonl(alias_address.s_addr));
	+ if (n < 0) {
	+ DBprintf(("DCC packet construct failure.\n"));
	+ goto lBAD_CTCP;
	}
	- }
	- /*
	- * An uninteresting CTCP - state entered right after '\001'
	- * has been pushed. Also used to copy the rest of a DCC,
	- * after IP address and port has been handled
	- */
	- lBAD_CTCP:
	- for (; i < dlen && iCopy < PKTSIZE; i++, iCopy++) {
	- newpacket[iCopy] = sptr[i]; /* Copy CTCP unchanged */
	- if (sptr[i] == '\001') {
	- goto lNORMAL_TEXT;
	+ if ((iCopy += n) >= PKTSIZE) { /* Truncated/fit exactly
	+ * - bad news */
	+ DBprintf(
	+ ("DCC constructed packet overflow.\n"));
	+ goto lBAD_CTCP;
	}
	- }
	- goto lPACKET_DONE;
	- /* Normal text */
	- lNORMAL_TEXT:
	- for (; i < dlen && iCopy < PKTSIZE; i++, iCopy++) {
	- newpacket[iCopy] = sptr[i]; /* Copy CTCP unchanged */
	- if (sptr[i] == '\001') {
	- goto lCTCP_START;
	+ alias_port = GetAliasPort(dcc_lnk);
	+ n = snprintf(&newpacket[iCopy], PKTSIZE - iCopy, "%u",
	+ htons(alias_port));
	+ if (n < 0) {
	+ DBprintf(("DCC packet construct failure.\n"));
	+ goto lBAD_CTCP;
	}
	+ iCopy += n;
	+ /*
	+ * Done - truncated cases will be taken
	+ * care of by lBAD_CTCP
	+ */
	+ DBprintf(("Aliased IP %lu and port %u\n",
	+ alias_address.s_addr, (unsigned)alias_port));
	+ }
	+ }
	+/*
	+ * An uninteresting CTCP - state entered right after '\001'
	+ * has been pushed. Also used to copy the rest of a DCC,
	+ * after IP address and port has been handled
	+ */
	+lBAD_CTCP:
	+ for (; i < dlen && iCopy < PKTSIZE; i++, iCopy++) {
	+ newpacket[iCopy] = sptr[i]; /* Copy CTCP unchanged */
	+ if (sptr[i] == '\001') {
	+ goto lNORMAL_TEXT;
	}
	- /* Handle the end of a packet */
	- lPACKET_DONE:
	- iCopy = iCopy > maxsize - copyat ? maxsize - copyat : iCopy;
	- memcpy(sptr + copyat, newpacket, iCopy);
	-
	- /* Save information regarding modified seq and ack numbers */
	- {
	- int delta;
	-
	- SetAckModified(lnk);
	- tc = (struct tcphdr *)ip_next(pip);
	- delta = GetDeltaSeqOut(tc->th_seq, lnk);
	- AddSeq(lnk, delta + copyat + iCopy - dlen, pip->ip_hl,
	- pip->ip_len, tc->th_seq, tc->th_off);
	+ }
	+ goto lPACKET_DONE;
	+/* Normal text */
	+lNORMAL_TEXT:
	+ for (; i < dlen && iCopy < PKTSIZE; i++, iCopy++) {
	+ newpacket[iCopy] = sptr[i]; /* Copy CTCP unchanged */
	+ if (sptr[i] == '\001') {
	+ goto lCTCP_START;
	}
	+ }
	+/* Handle the end of a packet */
	+lPACKET_DONE:
	+ iCopy = iCopy > maxsize - copyat ? maxsize - copyat : iCopy;
	+ memcpy(sptr + copyat, newpacket, iCopy);
	+
	+ /* Save information regarding modified seq and ack numbers */
	+ {
	+ int delta;

	- /* Revise IP header */
	- {
	- u_short new_len;
	+ SetAckModified(lnk);
	+ tc = (struct tcphdr *)ip_next(pip);
	+ delta = GetDeltaSeqOut(tc->th_seq, lnk);
	+ AddSeq(lnk, delta + copyat + iCopy - dlen, pip->ip_hl,
	+ pip->ip_len, tc->th_seq, tc->th_off);
	+ }

	- new_len = htons(hlen + iCopy + copyat);
	- DifferentialChecksum(&pip->ip_sum,
	- &new_len,
	- &pip->ip_len,
	- 1);
	- pip->ip_len = new_len;
	- }
	+ /* Revise IP header */
	+ {
	+ u_short new_len;
	+
	+ new_len = htons(hlen + iCopy + copyat);
	+ DifferentialChecksum(&pip->ip_sum, &new_len, &pip->ip_len, 1);
	+ pip->ip_len = new_len;
	+ }

	- /* Compute TCP checksum for revised packet */
	- tc->th_sum = 0;
	+ /* Compute TCP checksum for revised packet */
	+ tc->th_sum = 0;
	#ifdef _KERNEL
	- tcp_set_flags(tc, tcp_get_flags(tc) \| TH_RES1);
	+ tcp_set_flags(tc, tcp_get_flags(tc) \| TH_RES1);
	#else
	- tc->th_sum = TcpChecksum(pip);
	+ tc->th_sum = TcpChecksum(pip);
	#endif
	- return;
	- }
	+ return;
	+}
	}

	/* Notes:
	[Note 1]
	- The initial search will most often fail; it could be replaced with a 32-bit specific search.
	- Such a search would be done for 32-bit unsigned value V:
	- V ^= 0x01010101; (Search is for null bytes)
	- if( ((V-0x01010101)^V) & 0x80808080 ) {
	- (found a null bytes which was a 01 byte)
	+ The initial search will most often fail; it could be replaced with a 32-bit
	+ specific search. Such a search would be done for 32-bit unsigned value V: V ^=
	+ 0x01010101; (Search is for null bytes) if( ((V-0x01010101)^V) &
	+ 0x80808080 ) { (found a null bytes which was a 01 byte)
	}
	To assert that the processor is 32-bits, do
	extern int ircdccar[32]; (32 bits)
	Index: sys/netinet/libalias/alias_local.h
	===================================================================
	--- sys/netinet/libalias/alias_local.h
	+++ sys/netinet/libalias/alias_local.h
	@@ -44,20 +44,20 @@
	*/

	#ifndef _ALIAS_LOCAL_H_
	-#define _ALIAS_LOCAL_H_
	+#define _ALIAS_LOCAL_H_

	-#include <sys/tree.h>
	#include <sys/types.h>
	#include <sys/sysctl.h>
	+#include <sys/tree.h>

	#ifdef _KERNEL
	-#include <sys/malloc.h>
	#include <sys/param.h>
	#include <sys/lock.h>
	+#include <sys/malloc.h>
	#include <sys/mutex.h>

	/* XXX: LibAliasSetTarget() uses this constant. */
	-#define INADDR_NONE 0xffffffff
	+#define INADDR_NONE 0xffffffff

	#include <netinet/libalias/alias_sctp.h>
	#else
	@@ -65,8 +65,8 @@
	#endif

	/* Sizes of input and output link tables */
	-#define GET_ALIAS_PORT -1
	-#define GET_ALIAS_ID GET_ALIAS_PORT
	+#define GET_ALIAS_PORT -1
	+#define GET_ALIAS_ID GET_ALIAS_PORT

	#ifdef _KERNEL
	#define INET_NTOA_BUF(buf) (buf)
	@@ -77,80 +77,80 @@
	struct proxy_entry;

	struct group_in {
	- struct in_addr alias_addr;
	- u_short alias_port;
	- int link_type;
	- SPLAY_ENTRY(group_in) in;
	- LIST_HEAD(, alias_link) full, partial;
	+ struct in_addr alias_addr;
	+ u_short alias_port;
	+ int link_type;
	+ SPLAY_ENTRY(group_in) in;
	+ LIST_HEAD(, alias_link) full, partial;
	};

	struct libalias {
	LIST_ENTRY(libalias) instancelist;
	/* Mode flags documented in alias.h */
	- int packetAliasMode;
	+ int packetAliasMode;
	/* Address written onto source field of IP packet. */
	- struct in_addr aliasAddress;
	+ struct in_addr aliasAddress;
	/* IP address incoming packets are sent to
	* if no aliasing link already exists */
	- struct in_addr targetAddress;
	+ struct in_addr targetAddress;
	/* Lookup table of pointers to chains of link records.
	* Each link record is indexed into input,
	* output and "internal endpoint" lookup tables. */
	SPLAY_HEAD(splay_out, alias_link) linkSplayOut;
	- SPLAY_HEAD(splay_in, group_in) linkSplayIn;
	+ SPLAY_HEAD(splay_in, group_in) linkSplayIn;
	SPLAY_HEAD(splay_internal_endpoint, alias_link)
	- linkSplayInternalEndpoint;
	- LIST_HEAD (, alias_link) pptpList;
	+ linkSplayInternalEndpoint;
	+ LIST_HEAD(, alias_link) pptpList;
	/* HouseKeeping */
	- TAILQ_HEAD (, alias_link) checkExpire;
	+ TAILQ_HEAD(, alias_link) checkExpire;
	/* Link statistics */
	- unsigned int icmpLinkCount;
	- unsigned int udpLinkCount;
	- unsigned int tcpLinkCount;
	- unsigned int pptpLinkCount;
	- unsigned int protoLinkCount;
	- unsigned int fragmentIdLinkCount;
	- unsigned int fragmentPtrLinkCount;
	- unsigned int sockCount;
	+ unsigned int icmpLinkCount;
	+ unsigned int udpLinkCount;
	+ unsigned int tcpLinkCount;
	+ unsigned int pptpLinkCount;
	+ unsigned int protoLinkCount;
	+ unsigned int fragmentIdLinkCount;
	+ unsigned int fragmentPtrLinkCount;
	+ unsigned int sockCount;
	/* log descriptor */
	#ifdef _KERNEL
	- char *logDesc;
	+ char *logDesc;
	#else
	- FILE *logDesc;
	+ FILE *logDesc;
	#endif

	#ifndef NO_FW_PUNCH
	/* File descriptor to be able to control firewall.
	* Opened by PacketAliasSetMode on first setting
	* the PKT_ALIAS_PUNCH_FW flag. */
	- int fireWallFD;
	+ int fireWallFD;
	/* The first firewall entry free for our use */
	- int fireWallBaseNum;
	+ int fireWallBaseNum;
	/* How many entries can we use? */
	- int fireWallNumNums;
	+ int fireWallNumNums;
	/* Which entry did we last use? */
	- int fireWallActiveNum;
	+ int fireWallActiveNum;
	/* bool array for entries */
	- char *fireWallField;
	+ char *fireWallField;
	#endif
	/* TCP port used by the Skinny protocol. */
	- unsigned int skinnyPort;
	+ unsigned int skinnyPort;

	struct proxy_entry *proxyList;

	- struct in_addr true_addr; /* in network byte order. */
	- u_short true_port; /* in host byte order. */
	+ struct in_addr true_addr; /* in network byte order. */
	+ u_short true_port; /* in host byte order. */

	/* Port ranges for aliasing. */
	- u_short aliasPortLower;
	- u_short aliasPortLength;
	+ u_short aliasPortLower;
	+ u_short aliasPortLength;

	/*
	* sctp code support
	*/

	/* counts associations that have progressed to UP and not yet removed */
	- int sctpLinkCount;
	+ int sctpLinkCount;
	#ifdef _KERNEL
	/* timing queue for keeping track of association timeouts */
	struct sctp_nat_timer sctpNatTimer;
	@@ -171,10 +171,10 @@
	#ifdef _KERNEL
	#define LIBALIAS_LOCK_INIT(l) \
	mtx_init(&l->mutex, "per-instance libalias mutex", NULL, MTX_DEF)
	-#define LIBALIAS_LOCK_ASSERT(l) mtx_assert(&l->mutex, MA_OWNED)
	-#define LIBALIAS_LOCK(l) mtx_lock(&l->mutex)
	-#define LIBALIAS_UNLOCK(l) mtx_unlock(&l->mutex)
	-#define LIBALIAS_LOCK_DESTROY(l) mtx_destroy(&l->mutex)
	+#define LIBALIAS_LOCK_ASSERT(l) mtx_assert(&l->mutex, MA_OWNED)
	+#define LIBALIAS_LOCK(l) mtx_lock(&l->mutex)
	+#define LIBALIAS_UNLOCK(l) mtx_unlock(&l->mutex)
	+#define LIBALIAS_LOCK_DESTROY(l) mtx_destroy(&l->mutex)
	#else
	#define LIBALIAS_LOCK_INIT(l)
	#define LIBALIAS_LOCK_ASSERT(l)
	@@ -191,19 +191,19 @@
	* subtracting out old words), and "cksum"
	* is the checksum value to be updated.
	*/
	-#define ADJUST_CHECKSUM(acc, cksum) \
	- do { \
	- acc += cksum; \
	- if (acc < 0) { \
	- acc = -acc; \
	+#define ADJUST_CHECKSUM(acc, cksum) \
	+ do { \
	+ acc += cksum; \
	+ if (acc < 0) { \
	+ acc = -acc; \
	acc = (acc >> 16) + (acc & 0xffff); \
	- acc += acc >> 16; \
	- cksum = (u_short) ~acc; \
	- } else { \
	+ acc += acc >> 16; \
	+ cksum = (u_short)~acc; \
	+ } else { \
	acc = (acc >> 16) + (acc & 0xffff); \
	- acc += acc >> 16; \
	- cksum = (u_short) acc; \
	- } \
	+ acc += acc >> 16; \
	+ cksum = (u_short)acc; \
	+ } \
	} while (0)

	/* Prototypes */
	@@ -228,122 +228,109 @@
	* should be used.
	*/
	#ifndef _KERNEL
	-u_short IpChecksum(struct ip *_pip);
	-u_short TcpChecksum(struct ip *_pip);
	+u_short IpChecksum(struct ip *_pip);
	+u_short TcpChecksum(struct ip *_pip);
	#endif
	-void
	-DifferentialChecksum(u_short * _cksum, void * _new, void * _old, int _n);
	+void DifferentialChecksum(u_short _cksum, void _new, void *_old, int _n);

	/* Internal data access */
	-struct alias_link *
	-AddLink(struct libalias *la, struct in_addr src_addr, struct in_addr dst_addr,
	- struct in_addr alias_addr, u_short src_port, u_short dst_port,
	- int alias_param, int link_type);
	-int
	-FindIcmpIn(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
	- u_short _id_alias, int _create, struct alias_link **_lnkp);
	-int
	-FindIcmpOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
	- u_short _id, int _create, struct alias_link **_lnkp);
	-struct alias_link *
	-FindFragmentIn1(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
	- u_short _ip_id);
	-struct alias_link *
	-FindFragmentIn2(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
	- u_short _ip_id);
	-struct alias_link *
	-AddFragmentPtrLink(struct libalias *la, struct in_addr _dst_addr, u_short _ip_id);
	-struct alias_link *
	-FindFragmentPtr(struct libalias *la, struct in_addr _dst_addr, u_short _ip_id);
	-int
	-FindProtoIn(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
	- u_char _proto, struct alias_link **_lnkp);
	-int
	-FindProtoOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
	- u_char _proto, struct alias_link **_lnkp);
	-int
	-FindUdpTcpIn(struct libalias *la, struct in_addr _dst_addr, struct in_addr _alias_addr,
	- u_short _dst_port, u_short _alias_port, u_char _proto, int _create,
	+struct alias_link AddLink(struct libalias la, struct in_addr src_addr,
	+ struct in_addr dst_addr, struct in_addr alias_addr, u_short src_port,
	+ u_short dst_port, int alias_param, int link_type);
	+int FindIcmpIn(struct libalias *la, struct in_addr _dst_addr,
	+ struct in_addr _alias_addr, u_short _id_alias, int _create,
	struct alias_link **_lnkp);
	-int
	-FindUdpTcpOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
	- u_short _src_port, u_short _dst_port, u_char _proto, int _create,
	+int FindIcmpOut(struct libalias *la, struct in_addr _src_addr,
	+ struct in_addr _dst_addr, u_short _id, int _create,
	struct alias_link **_lnkp);
	-struct alias_link *
	-AddPptp(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
	- struct in_addr _alias_addr, u_int16_t _src_call_id);
	-struct alias_link *
	-FindPptpOutByCallId(struct libalias *la, struct in_addr _src_addr,
	- struct in_addr _dst_addr, u_int16_t _src_call_id);
	-struct alias_link *
	-FindPptpInByCallId(struct libalias *la, struct in_addr _dst_addr,
	- struct in_addr _alias_addr, u_int16_t _dst_call_id);
	-struct alias_link *
	-FindPptpOutByPeerCallId(struct libalias *la, struct in_addr _src_addr,
	- struct in_addr _dst_addr, u_int16_t _dst_call_id);
	-struct alias_link *
	-FindPptpInByPeerCallId(struct libalias *la, struct in_addr _dst_addr,
	- struct in_addr _alias_addr, u_int16_t _alias_call_id);
	-struct alias_link *
	-FindRtspOut(struct libalias *la, struct in_addr _src_addr, struct in_addr _dst_addr,
	- u_short _src_port, u_short _alias_port, u_char _proto);
	-struct in_addr
	-FindOriginalAddress(struct libalias *la, struct in_addr _alias_addr);
	-struct in_addr
	-FindAliasAddress(struct libalias *la, struct in_addr _original_addr);
	-struct in_addr
	-FindSctpRedirectAddress(struct libalias la, struct sctp_nat_msg sm);
	+struct alias_link FindFragmentIn1(struct libalias la,
	+ struct in_addr _dst_addr, struct in_addr _alias_addr, u_short _ip_id);
	+struct alias_link FindFragmentIn2(struct libalias la,
	+ struct in_addr _dst_addr, struct in_addr _alias_addr, u_short _ip_id);
	+struct alias_link AddFragmentPtrLink(struct libalias la,
	+ struct in_addr _dst_addr, u_short _ip_id);
	+struct alias_link FindFragmentPtr(struct libalias la,
	+ struct in_addr _dst_addr, u_short _ip_id);
	+int FindProtoIn(struct libalias *la, struct in_addr _dst_addr,
	+ struct in_addr _alias_addr, u_char _proto, struct alias_link **_lnkp);
	+int FindProtoOut(struct libalias *la, struct in_addr _src_addr,
	+ struct in_addr _dst_addr, u_char _proto, struct alias_link **_lnkp);
	+int FindUdpTcpIn(struct libalias *la, struct in_addr _dst_addr,
	+ struct in_addr _alias_addr, u_short _dst_port, u_short _alias_port,
	+ u_char _proto, int _create, struct alias_link **_lnkp);
	+int FindUdpTcpOut(struct libalias *la, struct in_addr _src_addr,
	+ struct in_addr _dst_addr, u_short _src_port, u_short _dst_port,
	+ u_char _proto, int _create, struct alias_link **_lnkp);
	+struct alias_link AddPptp(struct libalias la, struct in_addr _src_addr,
	+ struct in_addr _dst_addr, struct in_addr _alias_addr,
	+ u_int16_t _src_call_id);
	+struct alias_link FindPptpOutByCallId(struct libalias la,
	+ struct in_addr _src_addr, struct in_addr _dst_addr, u_int16_t _src_call_id);
	+struct alias_link FindPptpInByCallId(struct libalias la,
	+ struct in_addr _dst_addr, struct in_addr _alias_addr,
	+ u_int16_t _dst_call_id);
	+struct alias_link FindPptpOutByPeerCallId(struct libalias la,
	+ struct in_addr _src_addr, struct in_addr _dst_addr, u_int16_t _dst_call_id);
	+struct alias_link FindPptpInByPeerCallId(struct libalias la,
	+ struct in_addr _dst_addr, struct in_addr _alias_addr,
	+ u_int16_t _alias_call_id);
	+struct alias_link FindRtspOut(struct libalias la, struct in_addr _src_addr,
	+ struct in_addr _dst_addr, u_short _src_port, u_short _alias_port,
	+ u_char _proto);
	+struct in_addr FindOriginalAddress(struct libalias *la,
	+ struct in_addr _alias_addr);
	+struct in_addr FindAliasAddress(struct libalias *la,
	+ struct in_addr _original_addr);
	+struct in_addr FindSctpRedirectAddress(struct libalias *la,
	+ struct sctp_nat_msg *sm);

	/* External data access/modification */
	-int FindNewPortGroup(struct libalias *la, struct in_addr _dst_addr,
	- struct in_addr _alias_addr, u_short _src_port,
	- u_short _dst_port, u_short _port_count, u_char _proto,
	- u_char _align);
	-void GetFragmentAddr(struct alias_link _lnk, struct in_addr _src_addr);
	-void SetFragmentAddr(struct alias_link *_lnk, struct in_addr _src_addr);
	-void GetFragmentPtr(struct alias_link _lnk, void *_fptr);
	-void SetFragmentPtr(struct alias_link _lnk, void fptr);
	-void SetStateIn(struct alias_link *_lnk, int _state);
	-void SetStateOut(struct alias_link *_lnk, int _state);
	-int GetStateIn (struct alias_link *_lnk);
	-int GetStateOut(struct alias_link *_lnk);
	-struct in_addr GetOriginalAddress(struct alias_link *_lnk);
	-struct in_addr GetDestAddress(struct alias_link *_lnk);
	-struct in_addr GetAliasAddress(struct alias_link *_lnk);
	-struct in_addr GetDefaultAliasAddress(struct libalias *la);
	-void SetDefaultAliasAddress(struct libalias *la, struct in_addr _alias_addr);
	-u_short GetOriginalPort(struct alias_link *_lnk);
	-u_short GetAliasPort(struct alias_link *_lnk);
	-struct in_addr GetProxyAddress(struct alias_link *_lnk);
	-void SetProxyAddress(struct alias_link *_lnk, struct in_addr _addr);
	-u_short GetProxyPort(struct alias_link *_lnk);
	-void SetProxyPort(struct alias_link *_lnk, u_short _port);
	-void SetAckModified(struct alias_link *_lnk);
	-int GetAckModified(struct alias_link *_lnk);
	-int GetDeltaAckIn(u_long, struct alias_link *_lnk);
	-int GetDeltaSeqOut(u_long, struct alias_link *lnk);
	-void AddSeq(struct alias_link *lnk, int delta, u_int ip_hl,
	- u_short ip_len, u_long th_seq, u_int th_off);
	-void SetExpire (struct alias_link *_lnk, int _expire);
	-void SetProtocolFlags(struct alias_link *_lnk, int _pflags);
	-int GetProtocolFlags(struct alias_link *_lnk);
	-void SetDestCallId(struct alias_link *_lnk, u_int16_t _cid);
	+int FindNewPortGroup(struct libalias *la, struct in_addr _dst_addr,
	+ struct in_addr _alias_addr, u_short _src_port, u_short _dst_port,
	+ u_short _port_count, u_char _proto, u_char _align);
	+void GetFragmentAddr(struct alias_link _lnk, struct in_addr _src_addr);
	+void SetFragmentAddr(struct alias_link *_lnk, struct in_addr _src_addr);
	+void GetFragmentPtr(struct alias_link _lnk, void *_fptr);
	+void SetFragmentPtr(struct alias_link _lnk, void fptr);
	+void SetStateIn(struct alias_link *_lnk, int _state);
	+void SetStateOut(struct alias_link *_lnk, int _state);
	+int GetStateIn(struct alias_link *_lnk);
	+int GetStateOut(struct alias_link *_lnk);
	+struct in_addr GetOriginalAddress(struct alias_link *_lnk);
	+struct in_addr GetDestAddress(struct alias_link *_lnk);
	+struct in_addr GetAliasAddress(struct alias_link *_lnk);
	+struct in_addr GetDefaultAliasAddress(struct libalias *la);
	+void SetDefaultAliasAddress(struct libalias *la, struct in_addr _alias_addr);
	+u_short GetOriginalPort(struct alias_link *_lnk);
	+u_short GetAliasPort(struct alias_link *_lnk);
	+struct in_addr GetProxyAddress(struct alias_link *_lnk);
	+void SetProxyAddress(struct alias_link *_lnk, struct in_addr _addr);
	+u_short GetProxyPort(struct alias_link *_lnk);
	+void SetProxyPort(struct alias_link *_lnk, u_short _port);
	+void SetAckModified(struct alias_link *_lnk);
	+int GetAckModified(struct alias_link *_lnk);
	+int GetDeltaAckIn(u_long, struct alias_link *_lnk);
	+int GetDeltaSeqOut(u_long, struct alias_link *lnk);
	+void AddSeq(struct alias_link *lnk, int delta, u_int ip_hl, u_short ip_len,
	+ u_long th_seq, u_int th_off);
	+void SetExpire(struct alias_link *_lnk, int _expire);
	+void SetProtocolFlags(struct alias_link *_lnk, int _pflags);
	+int GetProtocolFlags(struct alias_link *_lnk);
	+void SetDestCallId(struct alias_link *_lnk, u_int16_t _cid);

	#ifndef NO_FW_PUNCH
	-void PunchFWHole(struct alias_link *_lnk);
	+void PunchFWHole(struct alias_link *_lnk);

	#endif

	/* Housekeeping function */
	-void HouseKeeping(struct libalias *);
	+void HouseKeeping(struct libalias *);

	/* Transparent proxy routines */
	-int
	-ProxyCheck(struct libalias la, struct in_addr proxy_server_addr,
	- u_short * proxy_server_port, struct in_addr src_addr,
	+int ProxyCheck(struct libalias la, struct in_addr proxy_server_addr,
	+ u_short *proxy_server_port, struct in_addr src_addr,
	struct in_addr dst_addr, u_short dst_port, u_char ip_p);
	-void
	-ProxyModify(struct libalias la, struct alias_link _lnk, struct ip *_pip,
	+void ProxyModify(struct libalias la, struct alias_link _lnk, struct ip *_pip,
	int _maxpacketsize, int _proxy_type);

	/* Tcp specific routines */
	@@ -381,4 +368,4 @@
	}
	#endif

	-#endif /* !_ALIAS_LOCAL_H_ */
	+#endif /* !_ALIAS_LOCAL_H_ */
	Index: sys/netinet/libalias/alias_mod.h
	===================================================================
	--- sys/netinet/libalias/alias_mod.h
	+++ sys/netinet/libalias/alias_mod.h
	@@ -40,21 +40,21 @@
	/* Use kernel allocator. */
	#if defined(_SYS_MALLOC_H_)
	#undef malloc
	-#define malloc(x) malloc(x, M_ALIAS, M_NOWAIT\|M_ZERO)
	-#define calloc(n, x) mallocarray((n), (x), M_ALIAS, M_NOWAIT\|M_ZERO)
	-#define free(x) free(x, M_ALIAS)
	+#define malloc(x) malloc(x, M_ALIAS, M_NOWAIT \| M_ZERO)
	+#define calloc(n, x) mallocarray((n), (x), M_ALIAS, M_NOWAIT \| M_ZERO)
	+#define free(x) free(x, M_ALIAS)
	#endif
	#endif

	/* Packet flow direction flags. */
	-#define IN 0x0001
	-#define OUT 0x0002
	-#define NODIR 0x4000
	+#define IN 0x0001
	+#define OUT 0x0002
	+#define NODIR 0x4000

	/* Working protocol flags. */
	-#define IP 0x01
	-#define TCP 0x02
	-#define UDP 0x04
	+#define IP 0x01
	+#define TCP 0x02
	+#define UDP 0x04

	/*
	* Data passed to protocol handler module, it must be filled
	@@ -62,12 +62,12 @@
	* module is elegible to be called.
	*/
	struct alias_data {
	- struct alias_link *lnk;
	- struct in_addr oaddr; / Original address. */
	- struct in_addr aaddr; / Alias address. */
	- uint16_t aport; / Alias port. */
	- uint16_t sport, dport; /* Source & destination port */
	- uint16_t maxpktsize; /* Max packet size. */
	+ struct alias_link *lnk;
	+ struct in_addr oaddr; / Original address. */
	+ struct in_addr aaddr; / Alias address. */
	+ uint16_t aport; / Alias port. */
	+ uint16_t sport, dport; /* Source & destination port */
	+ uint16_t maxpktsize; /* Max packet size. */
	};

	/*
	@@ -75,19 +75,19 @@
	* a protocol handler correctly work.
	*/
	struct proto_handler {
	- u_int pri; /* Handler priority. */
	- int16_t dir; /* Flow direction. */
	- uint8_t proto; /* Working protocol. */
	+ u_int pri; /* Handler priority. */
	+ int16_t dir; /* Flow direction. */
	+ uint8_t proto; /* Working protocol. */
	/* Fingerprint * function. */
	int (fingerprint)(struct libalias , struct alias_data *);
	/* Aliasing * function. */
	- int (protohandler)(struct libalias , struct ip *,
	- struct alias_data *);
	+ int (
	+ protohandler)(struct libalias , struct ip , struct alias_data );
	TAILQ_ENTRY(proto_handler) link;
	};

	/* End of handlers. */
	-#define EOH .dir = NODIR
	+#define EOH .dir = NODIR

	/* Functions used with protocol handlers. */
	int LibAliasAttachHandlers(struct proto_handler *);
	@@ -102,16 +102,16 @@
	* module loaded. In kernel land (kld mode) we don't need to care
	* care about libalias modules cause it's kld to do it for us.
	*/
	-#define DLL_LEN 32
	+#define DLL_LEN 32
	struct dll {
	- char name[DLL_LEN]; /* Name of module. */
	- void handle; /
	- * Ptr to shared obj obtained through
	- * dlopen() - use this ptr to get access
	- * to any symbols from a loaded module
	- * via dlsym().
	- */
	- SLIST_ENTRY(dll) next;
	+ char name[DLL_LEN]; /* Name of module. */
	+ void handle; /
	+ * Ptr to shared obj obtained through
	+ * dlopen() - use this ptr to get access
	+ * to any symbols from a loaded module
	+ * via dlsym().
	+ */
	+ SLIST_ENTRY(dll) next;
	};

	/* Functions used with dll module. */
	@@ -139,9 +139,9 @@
	* Struct for registering modules statically via SYSINIT.
	*/
	typedef struct moduledata {
	- const char name; / module name */
	- modeventhand_t evhand; /* event handler */
	- void priv; / extra data */
	+ const char name; / module name */
	+ modeventhand_t evhand; /* event handler */
	+ void priv; / extra data */
	} moduledata_t;
	#endif /* !_KERNEL */

	Index: sys/netinet/libalias/alias_mod.c
	===================================================================
	--- sys/netinet/libalias/alias_mod.c
	+++ sys/netinet/libalias/alias_mod.c
	@@ -28,19 +28,20 @@
	*/
	#include <sys/cdefs.h>
	#ifdef _KERNEL
	-#include <sys/libkern.h>
	#include <sys/param.h>
	+#include <sys/libkern.h>
	#include <sys/lock.h>
	#include <sys/rwlock.h>
	#else
	-#include <stdio.h>
	-#include <string.h>
	#include <sys/types.h>
	+
	#include <errno.h>
	+#include <stdio.h>
	+#include <string.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>

	#ifdef _KERNEL
	@@ -52,8 +53,8 @@
	#endif

	/* Protocol and userland module handlers chains. */
	-static TAILQ_HEAD(handler_chain, proto_handler) handler_chain =
	- TAILQ_HEAD_INITIALIZER(handler_chain);
	+static TAILQ_HEAD(handler_chain,
	+ proto_handler) handler_chain = TAILQ_HEAD_INITIALIZER(handler_chain);

	static int
	attach_handler(struct proto_handler *p)
	@@ -61,8 +62,7 @@
	struct proto_handler *b;

	TAILQ_FOREACH(b, &handler_chain, link) {
	- if ((b->pri == p->pri) &&
	- (b->dir == p->dir) &&
	+ if ((b->pri == p->pri) && (b->dir == p->dir) &&
	(b->proto == p->proto))
	return (EEXIST);
	if (b->pri > p->pri) {
	Index: sys/netinet/libalias/alias_nbt.c
	===================================================================
	--- sys/netinet/libalias/alias_nbt.c
	+++ sys/netinet/libalias/alias_nbt.c
	@@ -47,14 +47,15 @@
	#include <sys/kernel.h>
	#include <sys/module.h>
	#else
	-#include <errno.h>
	#include <sys/types.h>
	+
	+#include <errno.h>
	#include <stdio.h>
	#include <strings.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/udp.h>

	@@ -66,15 +67,14 @@
	#include "alias_mod.h"
	#endif

	-#define NETBIOS_NS_PORT_NUMBER 137
	+#define NETBIOS_NS_PORT_NUMBER 137
	#define NETBIOS_DGM_PORT_NUMBER 138

	-static int
	-AliasHandleUdpNbt(struct libalias , struct ip , struct alias_link *,
	- struct in_addr *, u_short);
	-static int
	-AliasHandleUdpNbtNS(struct libalias , struct ip , struct alias_link *,
	- struct in_addr , u_short , struct in_addr , u_short );
	+static int AliasHandleUdpNbt(struct libalias , struct ip ,
	+ struct alias_link , struct in_addr , u_short);
	+static int AliasHandleUdpNbtNS(struct libalias , struct ip ,
	+ struct alias_link , struct in_addr , u_short , struct in_addr ,
	+ u_short *);

	static int
	fingerprint1(struct libalias la, struct alias_data ah)
	@@ -82,8 +82,8 @@
	if (ah->dport == NULL \|\| ah->sport == NULL \|\| ah->lnk == NULL \|\|
	ah->aaddr == NULL \|\| ah->aport == NULL)
	return (-1);
	- if (ntohs(*ah->dport) == NETBIOS_DGM_PORT_NUMBER
	- \|\| ntohs(*ah->sport) == NETBIOS_DGM_PORT_NUMBER)
	+ if (ntohs(*ah->dport) == NETBIOS_DGM_PORT_NUMBER \|\|
	+ ntohs(*ah->sport) == NETBIOS_DGM_PORT_NUMBER)
	return (0);
	return (-1);
	}
	@@ -100,8 +100,8 @@
	if (ah->dport == NULL \|\| ah->sport == NULL \|\| ah->lnk == NULL \|\|
	ah->aaddr == NULL \|\| ah->aport == NULL)
	return (-1);
	- if (ntohs(*ah->dport) == NETBIOS_NS_PORT_NUMBER
	- \|\| ntohs(*ah->sport) == NETBIOS_NS_PORT_NUMBER)
	+ if (ntohs(*ah->dport) == NETBIOS_NS_PORT_NUMBER \|\|
	+ ntohs(*ah->sport) == NETBIOS_NS_PORT_NUMBER)
	return (0);
	return (-1);
	}
	@@ -109,8 +109,8 @@
	static int
	protohandler2in(struct libalias la, struct ip pip, struct alias_data *ah)
	{
	- AliasHandleUdpNbtNS(la, pip, ah->lnk, ah->aaddr, ah->aport,
	- ah->oaddr, ah->dport);
	+ AliasHandleUdpNbtNS(la, pip, ah->lnk, ah->aaddr, ah->aport, ah->oaddr,
	+ ah->dport);
	return (0);
	}

	@@ -122,30 +122,22 @@
	}

	/* Kernel module definition. */
	-struct proto_handler handlers[] = {
	- {
	- .pri = 130,
	- .dir = IN\|OUT,
	- .proto = UDP,
	- .fingerprint = &fingerprint1,
	- .protohandler = &protohandler1
	- },
	- {
	- .pri = 140,
	- .dir = IN,
	- .proto = UDP,
	- .fingerprint = &fingerprint2,
	- .protohandler = &protohandler2in
	- },
	- {
	- .pri = 140,
	- .dir = OUT,
	- .proto = UDP,
	- .fingerprint = &fingerprint2,
	- .protohandler = &protohandler2out
	- },
	- { EOH }
	-};
	+struct proto_handler handlers[] = { { .pri = 130,
	+ .dir = IN \| OUT,
	+ .proto = UDP,
	+ .fingerprint = &fingerprint1,
	+ .protohandler = &protohandler1 },
	+ { .pri = 140,
	+ .dir = IN,
	+ .proto = UDP,
	+ .fingerprint = &fingerprint2,
	+ .protohandler = &protohandler2in },
	+ { .pri = 140,
	+ .dir = OUT,
	+ .proto = UDP,
	+ .fingerprint = &fingerprint2,
	+ .protohandler = &protohandler2out },
	+ { EOH } };

	static int
	mod_handler(module_t mod, int type, void *data)
	@@ -170,9 +162,7 @@
	#ifdef _KERNEL
	static
	#endif
	-moduledata_t alias_mod = {
	- "alias_nbt", mod_handler, NULL
	-};
	+ moduledata_t alias_mod = { "alias_nbt", mod_handler, NULL };

	#ifdef _KERNEL
	DECLARE_MODULE(alias_nbt, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
	@@ -181,44 +171,44 @@
	#endif

	typedef struct {
	- struct in_addr oldaddr;
	- u_short oldport;
	- struct in_addr newaddr;
	- u_short newport;
	- u_short *uh_sum;
	+ struct in_addr oldaddr;
	+ u_short oldport;
	+ struct in_addr newaddr;
	+ u_short newport;
	+ u_short *uh_sum;
	} NBTArguments;

	typedef struct {
	- unsigned char type;
	- unsigned char flags;
	- u_short id;
	- struct in_addr source_ip;
	- u_short source_port;
	- u_short len;
	- u_short offset;
	+ unsigned char type;
	+ unsigned char flags;
	+ u_short id;
	+ struct in_addr source_ip;
	+ u_short source_port;
	+ u_short len;
	+ u_short offset;
	} NbtDataHeader;

	-#define OpQuery 0
	-#define OpUnknown 4
	-#define OpRegist 5
	-#define OpRelease 6
	-#define OpWACK 7
	-#define OpRefresh 8
	+#define OpQuery 0
	+#define OpUnknown 4
	+#define OpRegist 5
	+#define OpRelease 6
	+#define OpWACK 7
	+#define OpRefresh 8
	typedef struct {
	- u_short nametrid;
	- u_short dir:1, opcode:4, nmflags:7, rcode:4;
	- u_short qdcount;
	- u_short ancount;
	- u_short nscount;
	- u_short arcount;
	+ u_short nametrid;
	+ u_short dir : 1, opcode : 4, nmflags : 7, rcode : 4;
	+ u_short qdcount;
	+ u_short ancount;
	+ u_short nscount;
	+ u_short arcount;
	} NbtNSHeader;

	-#define FMT_ERR 0x1
	-#define SRV_ERR 0x2
	-#define IMP_ERR 0x4
	-#define RFS_ERR 0x5
	-#define ACT_ERR 0x6
	-#define CFT_ERR 0x7
	+#define FMT_ERR 0x1
	+#define SRV_ERR 0x2
	+#define IMP_ERR 0x4
	+#define RFS_ERR 0x5
	+#define ACT_ERR 0x6
	+#define CFT_ERR 0x7

	#ifdef LIBALIAS_DEBUG
	static void
	@@ -284,7 +274,9 @@
	while (s < p) {
	if (compress == 1) {
	#ifdef LIBALIAS_DEBUG
	- c = (u_char) (((((s & 0x0f) << 4) \| ((s + 1) & 0x0f)) - 0x11));
	+ c = (u_char)((
	+ (((s & 0x0f) << 4) \| ((s + 1) & 0x0f)) -
	+ 0x11));
	if (isprint(c))
	printf("%c", c);
	else
	@@ -315,21 +307,18 @@
	/*
	* NetBios Datagram Handler (IP/UDP)
	*/
	-#define DGM_DIRECT_UNIQ 0x10
	-#define DGM_DIRECT_GROUP 0x11
	-#define DGM_BROADCAST 0x12
	-#define DGM_ERROR 0x13
	-#define DGM_QUERY 0x14
	-#define DGM_POSITIVE_RES 0x15
	-#define DGM_NEGATIVE_RES 0x16
	+#define DGM_DIRECT_UNIQ 0x10
	+#define DGM_DIRECT_GROUP 0x11
	+#define DGM_BROADCAST 0x12
	+#define DGM_ERROR 0x13
	+#define DGM_QUERY 0x14
	+#define DGM_POSITIVE_RES 0x15
	+#define DGM_NEGATIVE_RES 0x16

	static int
	-AliasHandleUdpNbt(
	- struct libalias *la,
	- struct ip pip, / IP packet to examine/patch */
	- struct alias_link *lnk,
	- struct in_addr *alias_address,
	- u_short alias_port)
	+AliasHandleUdpNbt(struct libalias *la,
	+ struct ip pip, / IP packet to examine/patch */
	+ struct alias_link lnk, struct in_addr alias_address, u_short alias_port)
	{
	struct udphdr *uh;
	NbtDataHeader *ndh;
	@@ -357,8 +346,8 @@
	case DGM_DIRECT_GROUP:
	case DGM_BROADCAST:
	p = (u_char *)ndh + 14;
	- p = AliasHandleName(p, pmax); /* Source Name */
	- p = AliasHandleName(p, pmax); /* Destination Name */
	+ p = AliasHandleName(p, pmax); /* Source Name */
	+ p = AliasHandleName(p, pmax); /* Destination Name */
	break;
	case DGM_ERROR:
	p = (u_char *)ndh + 11;
	@@ -367,7 +356,7 @@
	case DGM_POSITIVE_RES:
	case DGM_NEGATIVE_RES:
	p = (u_char *)ndh + 10;
	- p = AliasHandleName(p, pmax); /* Destination Name */
	+ p = AliasHandleName(p, pmax); /* Destination Name */
	break;
	}
	if (p == NULL \|\| (char *)p > pmax)
	@@ -402,20 +391,17 @@
	}

	/* Question Section */
	-#define QS_TYPE_NB 0x0020
	-#define QS_TYPE_NBSTAT 0x0021
	-#define QS_CLAS_IN 0x0001
	+#define QS_TYPE_NB 0x0020
	+#define QS_TYPE_NBSTAT 0x0021
	+#define QS_CLAS_IN 0x0001
	typedef struct {
	- u_short type; /* The type of Request */
	- u_short class; /* The class of Request */
	+ u_short type; /* The type of Request */
	+ u_short class; /* The class of Request */
	} NBTNsQuestion;

	static u_char *
	-AliasHandleQuestion(
	- u_short count,
	- NBTNsQuestion * q,
	- char *pmax,
	- NBTArguments * nbtarg)
	+AliasHandleQuestion(u_short count, NBTNsQuestion q, char pmax,
	+ NBTArguments *nbtarg)
	{
	(void)nbtarg;

	@@ -435,7 +421,8 @@
	break;
	default:
	#ifdef LIBALIAS_DEBUG
	- printf("\nUnknown Type on Question %0x\n", ntohs(q->type));
	+ printf("\nUnknown Type on Question %0x\n",
	+ ntohs(q->type));
	#endif
	break;
	}
	@@ -447,31 +434,28 @@
	}

	/* Resource Record */
	-#define RR_TYPE_A 0x0001
	-#define RR_TYPE_NS 0x0002
	-#define RR_TYPE_NULL 0x000a
	-#define RR_TYPE_NB 0x0020
	-#define RR_TYPE_NBSTAT 0x0021
	-#define RR_CLAS_IN 0x0001
	-#define SizeOfNsResource 8
	+#define RR_TYPE_A 0x0001
	+#define RR_TYPE_NS 0x0002
	+#define RR_TYPE_NULL 0x000a
	+#define RR_TYPE_NB 0x0020
	+#define RR_TYPE_NBSTAT 0x0021
	+#define RR_CLAS_IN 0x0001
	+#define SizeOfNsResource 8
	typedef struct {
	- u_short type;
	- u_short class;
	- unsigned int ttl;
	- u_short rdlen;
	+ u_short type;
	+ u_short class;
	+ unsigned int ttl;
	+ u_short rdlen;
	} NBTNsResource;

	-#define SizeOfNsRNB 6
	+#define SizeOfNsRNB 6
	typedef struct {
	- u_short g:1, ont:2, resv:13;
	- struct in_addr addr;
	+ u_short g : 1, ont : 2, resv : 13;
	+ struct in_addr addr;
	} NBTNsRNB;

	static u_char *
	-AliasHandleResourceNB(
	- NBTNsResource *q,
	- char *pmax,
	- NBTArguments *nbtarg)
	+AliasHandleResourceNB(NBTNsResource q, char pmax, NBTArguments *nbtarg)
	{
	NBTNsRNB *nb;
	u_short bcount;
	@@ -492,8 +476,7 @@
	#ifdef LIBALIAS_DEBUG
	printf("NB rec[%s->%s, %dbytes] ",
	inet_ntoa_r(nbtarg->oldaddr, INET_NTOA_BUF(oldbuf)),
	- inet_ntoa_r(nbtarg->newaddr, INET_NTOA_BUF(newbuf)),
	- bcount);
	+ inet_ntoa_r(nbtarg->newaddr, INET_NTOA_BUF(newbuf)), bcount);
	#endif
	while (nb != NULL && bcount != 0) {
	if ((char *)(nb + 1) > pmax) {
	@@ -503,7 +486,8 @@
	#ifdef LIBALIAS_DEBUG
	printf("<%s>", inet_ntoa_r(nb->addr, INET_NTOA_BUF(newbuf)));
	#endif
	- if (!bcmp(&nbtarg->oldaddr, &nb->addr, sizeof(struct in_addr))) {
	+ if (!bcmp(&nbtarg->oldaddr, &nb->addr,
	+ sizeof(struct in_addr))) {
	if (*nbtarg->uh_sum != 0) {
	int acc;
	u_short *sptr;
	@@ -535,16 +519,13 @@
	return ((u_char *)nb);
	}

	-#define SizeOfResourceA 6
	+#define SizeOfResourceA 6
	typedef struct {
	- struct in_addr addr;
	+ struct in_addr addr;
	} NBTNsResourceA;

	static u_char *
	-AliasHandleResourceA(
	- NBTNsResource *q,
	- char *pmax,
	- NBTArguments *nbtarg)
	+AliasHandleResourceA(NBTNsResource q, char pmax, NBTArguments *nbtarg)
	{
	NBTNsResourceA *a;
	u_short bcount;
	@@ -579,17 +560,17 @@
	int acc;
	u_short *sptr;

	- sptr = (u_short )&(a->addr); / Old */
	+ sptr = (u_short )&(a->addr); / Old */
	acc = *sptr++;
	acc += *sptr;
	- sptr = (u_short )&nbtarg->newaddr; / New */
	+ sptr = (u_short )&nbtarg->newaddr; / New */
	acc -= *sptr++;
	acc -= *sptr;
	ADJUST_CHECKSUM(acc, *nbtarg->uh_sum);
	}
	a->addr = nbtarg->newaddr;
	}
	- a++; /* XXXX */
	+ a++; /* XXXX */
	bcount -= SizeOfResourceA;
	}
	if (a == NULL \|\| (char *)(a + 1) > pmax)
	@@ -598,14 +579,11 @@
	}

	typedef struct {
	- u_short opcode:4, flags:8, resv:4;
	+ u_short opcode : 4, flags : 8, resv : 4;
	} NBTNsResourceNULL;

	static u_char *
	-AliasHandleResourceNULL(
	- NBTNsResource *q,
	- char *pmax,
	- NBTArguments *nbtarg)
	+AliasHandleResourceNULL(NBTNsResource q, char pmax, NBTArguments *nbtarg)
	{
	NBTNsResourceNULL *n;
	u_short bcount;
	@@ -637,10 +615,7 @@
	}

	static u_char *
	-AliasHandleResourceNS(
	- NBTNsResource *q,
	- char *pmax,
	- NBTArguments *nbtarg)
	+AliasHandleResourceNS(NBTNsResource q, char pmax, NBTArguments *nbtarg)
	{
	NBTNsResourceNULL *n;
	u_short bcount;
	@@ -657,7 +632,7 @@
	bcount = ntohs(q->rdlen);

	/* Resource Record Name Filed */
	- q = (NBTNsResource )AliasHandleName((u_char )n, pmax); /* XXX */
	+ q = (NBTNsResource )AliasHandleName((u_char )n, pmax); /* XXX */

	if (q == NULL \|\| (char )((u_char )n + bcount) > pmax)
	return (NULL);
	@@ -666,14 +641,11 @@
	}

	typedef struct {
	- u_short numnames;
	+ u_short numnames;
	} NBTNsResourceNBSTAT;

	static u_char *
	-AliasHandleResourceNBSTAT(
	- NBTNsResource *q,
	- char *pmax,
	- NBTArguments *nbtarg)
	+AliasHandleResourceNBSTAT(NBTNsResource q, char pmax, NBTArguments *nbtarg)
	{
	NBTNsResourceNBSTAT *n;
	u_short bcount;
	@@ -696,11 +668,8 @@
	}

	static u_char *
	-AliasHandleResource(
	- u_short count,
	- NBTNsResource *q,
	- char *pmax,
	- NBTArguments *nbtarg)
	+AliasHandleResource(u_short count, NBTNsResource q, char pmax,
	+ NBTArguments *nbtarg)
	{
	while (count != 0) {
	/* Resource Record Name Filed */
	@@ -715,31 +684,29 @@
	/* Type and Class filed */
	switch (ntohs(q->type)) {
	case RR_TYPE_NB:
	- q = (NBTNsResource *)AliasHandleResourceNB(
	- q, pmax, nbtarg);
	+ q = (NBTNsResource *)AliasHandleResourceNB(q, pmax,
	+ nbtarg);
	break;
	case RR_TYPE_A:
	- q = (NBTNsResource *)AliasHandleResourceA(
	- q, pmax, nbtarg);
	+ q = (NBTNsResource *)AliasHandleResourceA(q, pmax,
	+ nbtarg);
	break;
	case RR_TYPE_NS:
	- q = (NBTNsResource *)AliasHandleResourceNS(
	- q, pmax, nbtarg);
	+ q = (NBTNsResource *)AliasHandleResourceNS(q, pmax,
	+ nbtarg);
	break;
	case RR_TYPE_NULL:
	- q = (NBTNsResource *)AliasHandleResourceNULL(
	- q, pmax, nbtarg);
	+ q = (NBTNsResource *)AliasHandleResourceNULL(q, pmax,
	+ nbtarg);
	break;
	case RR_TYPE_NBSTAT:
	- q = (NBTNsResource *)AliasHandleResourceNBSTAT(
	- q, pmax, nbtarg);
	+ q = (NBTNsResource *)AliasHandleResourceNBSTAT(q, pmax,
	+ nbtarg);
	break;
	default:
	#ifdef LIBALIAS_DEBUG
	- printf(
	- "\nUnknown Type of Resource %0x\n",
	- ntohs(q->type)
	- );
	+ printf("\nUnknown Type of Resource %0x\n",
	+ ntohs(q->type));
	fflush(stdout);
	#endif
	break;
	@@ -750,14 +717,10 @@
	}

	static int
	-AliasHandleUdpNbtNS(
	- struct libalias *la,
	- struct ip pip, / IP packet to examine/patch */
	- struct alias_link *lnk,
	- struct in_addr *alias_address,
	- u_short *alias_port,
	- struct in_addr *original_address,
	- u_short *original_port)
	+AliasHandleUdpNbtNS(struct libalias *la,
	+ struct ip pip, / IP packet to examine/patch */
	+ struct alias_link lnk, struct in_addr alias_address, u_short *alias_port,
	+ struct in_addr original_address, u_short original_port)
	{
	struct udphdr *uh;
	NbtNSHeader *nsh;
	@@ -786,55 +749,32 @@

	#ifdef LIBALIAS_DEBUG
	printf(" [%s] ID=%02x, op=%01x, flag=%02x, rcode=%01x, qd=%04x"
	- ", an=%04x, ns=%04x, ar=%04x, [%d]-->",
	- nsh->dir ? "Response" : "Request",
	- nsh->nametrid,
	- nsh->opcode,
	- nsh->nmflags,
	- nsh->rcode,
	- ntohs(nsh->qdcount),
	- ntohs(nsh->ancount),
	- ntohs(nsh->nscount),
	- ntohs(nsh->arcount),
	- (u_char )p - (u_char )nsh
	- );
	+ ", an=%04x, ns=%04x, ar=%04x, [%d]-->",
	+ nsh->dir ? "Response" : "Request", nsh->nametrid, nsh->opcode,
	+ nsh->nmflags, nsh->rcode, ntohs(nsh->qdcount), ntohs(nsh->ancount),
	+ ntohs(nsh->nscount), ntohs(nsh->arcount),
	+ (u_char )p - (u_char )nsh);
	#endif

	/* Question Entries */
	if (ntohs(nsh->qdcount) != 0) {
	- p = AliasHandleQuestion(
	- ntohs(nsh->qdcount),
	- (NBTNsQuestion *)p,
	- pmax,
	- &nbtarg
	- );
	+ p = AliasHandleQuestion(ntohs(nsh->qdcount), (NBTNsQuestion *)p,
	+ pmax, &nbtarg);
	}
	/* Answer Resource Records */
	if (ntohs(nsh->ancount) != 0) {
	- p = AliasHandleResource(
	- ntohs(nsh->ancount),
	- (NBTNsResource *)p,
	- pmax,
	- &nbtarg
	- );
	+ p = AliasHandleResource(ntohs(nsh->ancount), (NBTNsResource *)p,
	+ pmax, &nbtarg);
	}
	/* Authority Resource Recodrs */
	if (ntohs(nsh->nscount) != 0) {
	- p = AliasHandleResource(
	- ntohs(nsh->nscount),
	- (NBTNsResource *)p,
	- pmax,
	- &nbtarg
	- );
	+ p = AliasHandleResource(ntohs(nsh->nscount), (NBTNsResource *)p,
	+ pmax, &nbtarg);
	}
	/* Additional Resource Recodrs */
	if (ntohs(nsh->arcount) != 0) {
	- p = AliasHandleResource(
	- ntohs(nsh->arcount),
	- (NBTNsResource *)p,
	- pmax,
	- &nbtarg
	- );
	+ p = AliasHandleResource(ntohs(nsh->arcount), (NBTNsResource *)p,
	+ pmax, &nbtarg);
	}
	#ifdef LIBALIAS_DEBUG
	PrintRcode(nsh->rcode);
	Index: sys/netinet/libalias/alias_pptp.c
	===================================================================
	--- sys/netinet/libalias/alias_pptp.c
	+++ sys/netinet/libalias/alias_pptp.c
	@@ -40,13 +40,14 @@
	/* Includes */
	#ifdef _KERNEL
	#include <sys/param.h>
	-#include <sys/limits.h>
	#include <sys/kernel.h>
	+#include <sys/limits.h>
	#include <sys/module.h>
	#else
	+#include <sys/types.h>
	+
	#include <errno.h>
	#include <limits.h>
	-#include <sys/types.h>
	#include <stdio.h>
	#endif

	@@ -64,25 +65,23 @@

	#define PPTP_CONTROL_PORT_NUMBER 1723

	-static void
	-AliasHandlePptpOut(struct libalias , struct ip , struct alias_link *);
	+static void AliasHandlePptpOut(struct libalias , struct ip ,
	+ struct alias_link *);

	-static void
	-AliasHandlePptpIn(struct libalias , struct ip , struct alias_link *);
	+static void AliasHandlePptpIn(struct libalias , struct ip ,
	+ struct alias_link *);

	-static int
	-AliasHandlePptpGreOut(struct libalias , struct ip );
	+static int AliasHandlePptpGreOut(struct libalias , struct ip );

	-static int
	-AliasHandlePptpGreIn(struct libalias , struct ip );
	+static int AliasHandlePptpGreIn(struct libalias , struct ip );

	static int
	fingerprint(struct libalias la, struct alias_data ah)
	{
	if (ah->dport == NULL \|\| ah->sport == NULL \|\| ah->lnk == NULL)
	return (-1);
	- if (ntohs(*ah->dport) == PPTP_CONTROL_PORT_NUMBER
	- \|\| ntohs(*ah->sport) == PPTP_CONTROL_PORT_NUMBER)
	+ if (ntohs(*ah->dport) == PPTP_CONTROL_PORT_NUMBER \|\|
	+ ntohs(*ah->sport) == PPTP_CONTROL_PORT_NUMBER)
	return (0);
	return (-1);
	}
	@@ -125,42 +124,32 @@
	}

	/* Kernel module definition. */
	-struct proto_handler handlers[] = {
	- {
	- .pri = 200,
	- .dir = IN,
	- .proto = TCP,
	- .fingerprint = &fingerprint,
	- .protohandler = &protohandlerin
	- },
	- {
	- .pri = 210,
	- .dir = OUT,
	- .proto = TCP,
	- .fingerprint = &fingerprint,
	- .protohandler = &protohandlerout
	- },
	-/*
	- * WATCH OUT!!! these 2 handlers NEED a priority of INT_MAX (highest possible)
	- * cause they will ALWAYS process packets, so they must be the last one
	- * in chain: look fingerprintgre() above.
	- */
	- {
	- .pri = INT_MAX,
	- .dir = IN,
	- .proto = IP,
	- .fingerprint = &fingerprintgre,
	- .protohandler = &protohandlergrein
	- },
	- {
	- .pri = INT_MAX,
	- .dir = OUT,
	- .proto = IP,
	- .fingerprint = &fingerprintgre,
	- .protohandler = &protohandlergreout
	- },
	- { EOH }
	-};
	+struct proto_handler handlers[] = { { .pri = 200,
	+ .dir = IN,
	+ .proto = TCP,
	+ .fingerprint = &fingerprint,
	+ .protohandler = &protohandlerin },
	+ { .pri = 210,
	+ .dir = OUT,
	+ .proto = TCP,
	+ .fingerprint = &fingerprint,
	+ .protohandler = &protohandlerout },
	+ /*
	+ * WATCH OUT!!! these 2 handlers NEED a priority of INT_MAX (highest
	+ * possible) cause they will ALWAYS process packets, so they must be the
	+ * last one in chain: look fingerprintgre() above.
	+ */
	+ { .pri = INT_MAX,
	+ .dir = IN,
	+ .proto = IP,
	+ .fingerprint = &fingerprintgre,
	+ .protohandler = &protohandlergrein },
	+ { .pri = INT_MAX,
	+ .dir = OUT,
	+ .proto = IP,
	+ .fingerprint = &fingerprintgre,
	+ .protohandler = &protohandlergreout },
	+ { EOH } };
	static int
	mod_handler(module_t mod, int type, void *data)
	{
	@@ -184,9 +173,7 @@
	#ifdef _KERNEL
	static
	#endif
	-moduledata_t alias_mod = {
	- "alias_pptp", mod_handler, NULL
	-};
	+ moduledata_t alias_mod = { "alias_pptp", mod_handler, NULL };

	#ifdef _KERNEL
	DECLARE_MODULE(alias_pptp, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
	@@ -223,26 +210,26 @@
	* PPTP definitions
	*/

	-struct grehdr { /* Enhanced GRE header. */
	- u_int16_t gh_flags; /* Flags. */
	- u_int16_t gh_protocol; /* Protocol type. */
	- u_int16_t gh_length; /* Payload length. */
	- u_int16_t gh_call_id; /* Call ID. */
	- u_int32_t gh_seq_no; /* Sequence number (optional). */
	- u_int32_t gh_ack_no; /* Acknowledgment number
	- * (optional). */
	+struct grehdr { /* Enhanced GRE header. */
	+ u_int16_t gh_flags; /* Flags. */
	+ u_int16_t gh_protocol; /* Protocol type. */
	+ u_int16_t gh_length; /* Payload length. */
	+ u_int16_t gh_call_id; /* Call ID. */
	+ u_int32_t gh_seq_no; /* Sequence number (optional). */
	+ u_int32_t gh_ack_no; /* Acknowledgment number
	+ * (optional). */
	};
	typedef struct grehdr GreHdr;

	/* The PPTP protocol ID used in the GRE 'proto' field. */
	-#define PPTP_GRE_PROTO 0x880b
	+#define PPTP_GRE_PROTO 0x880b

	/* Bits that must be set a certain way in all PPTP/GRE packets. */
	-#define PPTP_INIT_VALUE ((0x2001 << 16) \| PPTP_GRE_PROTO)
	-#define PPTP_INIT_MASK 0xef7fffff
	+#define PPTP_INIT_VALUE ((0x2001 << 16) \| PPTP_GRE_PROTO)
	+#define PPTP_INIT_MASK 0xef7fffff

	-#define PPTP_MAGIC 0x1a2b3c4d
	-#define PPTP_CTRL_MSG_TYPE 1
	+#define PPTP_MAGIC 0x1a2b3c4d
	+#define PPTP_CTRL_MSG_TYPE 1

	enum {
	PPTP_StartCtrlConnRequest = 1,
	@@ -264,23 +251,23 @@

	/* Message structures */
	struct pptpMsgHead {
	- u_int16_t length; /* total length */
	- u_int16_t msgType;/* PPTP message type */
	- u_int32_t magic; /* magic cookie */
	- u_int16_t type; /* control message type */
	- u_int16_t resv0; /* reserved */
	+ u_int16_t length; /* total length */
	+ u_int16_t msgType; /* PPTP message type */
	+ u_int32_t magic; /* magic cookie */
	+ u_int16_t type; /* control message type */
	+ u_int16_t resv0; /* reserved */
	};
	typedef struct pptpMsgHead *PptpMsgHead;

	struct pptpCodes {
	- u_int8_t resCode;/* Result Code */
	- u_int8_t errCode;/* Error Code */
	+ u_int8_t resCode; /* Result Code */
	+ u_int8_t errCode; /* Error Code */
	};
	typedef struct pptpCodes *PptpCode;

	struct pptpCallIds {
	- u_int16_t cid1; /* Call ID field #1 */
	- u_int16_t cid2; /* Call ID field #2 */
	+ u_int16_t cid1; /* Call ID field #1 */
	+ u_int16_t cid2; /* Call ID field #2 */
	};
	typedef struct pptpCallIds *PptpCallId;

	@@ -288,13 +275,13 @@

	static void
	AliasHandlePptpOut(struct libalias *la,
	- struct ip pip, / IP packet to examine/patch */
	- struct alias_link lnk) / The PPTP control link */
	+ struct ip pip, / IP packet to examine/patch */
	+ struct alias_link lnk) / The PPTP control link */
	{
	struct alias_link *pptp_lnk;
	PptpCallId cptr;
	PptpCode codes;
	- u_int16_t ctl_type; /* control message type */
	+ u_int16_t ctl_type; /* control message type */
	struct tcphdr *tc;

	/* Verify valid PPTP control message */
	@@ -311,8 +298,8 @@
	* Establish PPTP link for address and Call ID found in
	* control message.
	*/
	- pptp_lnk = AddPptp(la, GetOriginalAddress(lnk), GetDestAddress(lnk),
	- GetAliasAddress(lnk), cptr->cid1);
	+ pptp_lnk = AddPptp(la, GetOriginalAddress(lnk),
	+ GetDestAddress(lnk), GetAliasAddress(lnk), cptr->cid1);
	break;
	case PPTP_CallClearRequest:
	case PPTP_CallDiscNotify:
	@@ -360,13 +347,13 @@

	static void
	AliasHandlePptpIn(struct libalias *la,
	- struct ip pip, / IP packet to examine/patch */
	- struct alias_link lnk) / The PPTP control link */
	+ struct ip pip, / IP packet to examine/patch */
	+ struct alias_link lnk) / The PPTP control link */
	{
	struct alias_link *pptp_lnk;
	PptpCallId cptr;
	u_int16_t *pcall_id;
	- u_int16_t ctl_type; /* control message type */
	+ u_int16_t ctl_type; /* control message type */
	struct tcphdr *tc;

	/* Verify valid PPTP control message */
	@@ -426,7 +413,8 @@
	}

	static PptpCallId
	-AliasVerifyPptp(struct ip pip, u_int16_t ptype) /* IP packet to examine/patch */
	+AliasVerifyPptp(struct ip *pip,
	+ u_int16_t ptype) / IP packet to examine/patch */
	{
	int hlen, tlen, dlen;
	PptpMsgHead hptr;
	@@ -439,7 +427,8 @@
	dlen = tlen - hlen;

	/* Verify data length */
	- if (dlen < (int)(sizeof(struct pptpMsgHead) + sizeof(struct pptpCallIds)))
	+ if (dlen <
	+ (int)(sizeof(struct pptpMsgHead) + sizeof(struct pptpCallIds)))
	return (NULL);

	/* Move up to PPTP message header */
	@@ -455,8 +444,8 @@

	/* Verify data length. */
	if ((ptype == PPTP_OutCallReply \|\| ptype == PPTP_InCallReply) &&
	- (dlen < (int)(sizeof(struct pptpMsgHead) + sizeof(struct pptpCallIds) +
	- sizeof(struct pptpCodes))))
	+ (dlen < (int)(sizeof(struct pptpMsgHead) +
	+ sizeof(struct pptpCallIds) + sizeof(struct pptpCodes))))
	return (NULL);
	else
	return ((PptpCallId)(hptr + 1));
	@@ -474,13 +463,14 @@
	if ((ntohl(((u_int32_t )gr)) & PPTP_INIT_MASK) != PPTP_INIT_VALUE)
	return (-1);

	- lnk = FindPptpOutByPeerCallId(la, pip->ip_src, pip->ip_dst, gr->gh_call_id);
	+ lnk = FindPptpOutByPeerCallId(la, pip->ip_src, pip->ip_dst,
	+ gr->gh_call_id);
	if (lnk != NULL) {
	struct in_addr alias_addr = GetAliasAddress(lnk);

	/* Change source IP address. */
	- DifferentialChecksum(&pip->ip_sum,
	- &alias_addr, &pip->ip_src, 2);
	+ DifferentialChecksum(&pip->ip_sum, &alias_addr, &pip->ip_src,
	+ 2);
	pip->ip_src = alias_addr;
	}
	return (0);
	@@ -498,7 +488,8 @@
	if ((ntohl(((u_int32_t )gr)) & PPTP_INIT_MASK) != PPTP_INIT_VALUE)
	return (-1);

	- lnk = FindPptpInByPeerCallId(la, pip->ip_src, pip->ip_dst, gr->gh_call_id);
	+ lnk = FindPptpInByPeerCallId(la, pip->ip_src, pip->ip_dst,
	+ gr->gh_call_id);
	if (lnk != NULL) {
	struct in_addr src_addr = GetOriginalAddress(lnk);

	@@ -506,8 +497,7 @@
	gr->gh_call_id = GetOriginalPort(lnk);

	/* Restore original IP address. */
	- DifferentialChecksum(&pip->ip_sum,
	- &src_addr, &pip->ip_dst, 2);
	+ DifferentialChecksum(&pip->ip_sum, &src_addr, &pip->ip_dst, 2);
	pip->ip_dst = src_addr;
	}
	return (0);
	Index: sys/netinet/libalias/alias_proxy.c
	===================================================================
	--- sys/netinet/libalias/alias_proxy.c
	+++ sys/netinet/libalias/alias_proxy.c
	@@ -59,10 +59,11 @@
	#include <sys/limits.h>
	#else
	#include <sys/types.h>
	+
	#include <ctype.h>
	+#include <netdb.h>
	#include <stdio.h>
	#include <stdlib.h>
	-#include <netdb.h>
	#include <string.h>
	#endif

	@@ -75,8 +76,8 @@
	#else
	#include <arpa/inet.h>

	-#include "alias.h" /* Public API functions for libalias */
	-#include "alias_local.h" /* Functions used by alias.c /
	+#include "alias.h" /* Public API functions for libalias */
	+#include "alias_local.h" /* Functions used by alias.c /
	#endif

	/*
	@@ -89,22 +90,22 @@
	*/
	struct proxy_entry {
	struct libalias *la;
	-#define PROXY_TYPE_ENCODE_NONE 1
	+#define PROXY_TYPE_ENCODE_NONE 1
	#define PROXY_TYPE_ENCODE_TCPSTREAM 2
	-#define PROXY_TYPE_ENCODE_IPHDR 3
	- int rule_index;
	- int proxy_type;
	- u_char proto;
	- u_short proxy_port;
	- u_short server_port;
	+#define PROXY_TYPE_ENCODE_IPHDR 3
	+ int rule_index;
	+ int proxy_type;
	+ u_char proto;
	+ u_short proxy_port;
	+ u_short server_port;

	- struct in_addr server_addr;
	+ struct in_addr server_addr;

	- struct in_addr src_addr;
	- struct in_addr src_mask;
	+ struct in_addr src_addr;
	+ struct in_addr src_mask;

	- struct in_addr dst_addr;
	- struct in_addr dst_mask;
	+ struct in_addr dst_addr;
	+ struct in_addr dst_mask;

	struct proxy_entry *next;
	struct proxy_entry *last;
	@@ -132,14 +133,14 @@
	destination of a proxied IP packet
	*/

	-static int IpMask(int, struct in_addr *);
	-static int IpAddr(char , struct in_addr );
	-static int IpPort(char , int, int );
	-static void RuleAdd(struct libalias la, struct proxy_entry );
	-static void RuleDelete(struct proxy_entry *);
	-static int RuleNumberDelete(struct libalias *la, int);
	-static void ProxyEncodeTcpStream(struct alias_link , struct ip , int);
	-static void ProxyEncodeIpHeader(struct ip *, int);
	+static int IpMask(int, struct in_addr *);
	+static int IpAddr(char , struct in_addr );
	+static int IpPort(char , int, int );
	+static void RuleAdd(struct libalias la, struct proxy_entry );
	+static void RuleDelete(struct proxy_entry *);
	+static int RuleNumberDelete(struct libalias *la, int);
	+static void ProxyEncodeTcpStream(struct alias_link , struct ip , int);
	+static void ProxyEncodeIpHeader(struct ip *, int);

	static int
	IpMask(int nbits, struct in_addr *mask)
	@@ -174,7 +175,7 @@

	n = sscanf(s, "%d", port);
	if (n != 1)
	-#ifndef _KERNEL /* XXX: we accept only numeric ports in kernel */
	+#ifndef _KERNEL /* XXX: we accept only numeric ports in kernel */
	{
	struct servent *se;

	@@ -282,9 +283,7 @@
	}

	static void
	-ProxyEncodeTcpStream(struct alias_link *lnk,
	- struct ip *pip,
	- int maxpacketsize)
	+ProxyEncodeTcpStream(struct alias_link lnk, struct ip pip, int maxpacketsize)
	{
	int slen;
	char buffer[40];
	@@ -375,9 +374,9 @@
	static void
	ProxyEncodeIpHeader(struct ip *pip, int maxpacketsize)
	{
	-#define OPTION_LEN_BYTES 8
	-#define OPTION_LEN_INT16 4
	-#define OPTION_LEN_INT32 2
	+#define OPTION_LEN_BYTES 8
	+#define OPTION_LEN_INT16 4
	+#define OPTION_LEN_INT32 2
	_Alignas(_Alignof(u_short)) u_char option[OPTION_LEN_BYTES];

	#ifdef LIBALIAS_DEBUG
	@@ -396,11 +395,11 @@
	u_char *ptr;
	struct tcphdr *tc;

	- ptr = (u_char *) pip;
	+ ptr = (u_char *)pip;
	ptr += 20;
	memcpy(ptr + OPTION_LEN_BYTES, ptr, ntohs(pip->ip_len) - 20);

	- option[0] = 0x64; /* class: 3 (reserved), option 4 */
	+ option[0] = 0x64; /* class: 3 (reserved), option 4 */
	option[1] = OPTION_LEN_BYTES;

	memcpy(&option[2], (u_char *)&pip->ip_dst, 4);
	@@ -417,12 +416,12 @@
	int accumulate;
	u_short *sptr;

	- sptr = (u_short *) option;
	+ sptr = (u_short *)option;
	accumulate = 0;
	for (i = 0; i < OPTION_LEN_INT16; i++)
	accumulate -= *(sptr++);

	- sptr = (u_short *) pip;
	+ sptr = (u_short *)pip;
	accumulate += *sptr;
	pip->ip_hl += OPTION_LEN_INT32;
	accumulate -= *sptr;
	@@ -453,7 +452,7 @@

	int
	ProxyCheck(struct libalias la, struct in_addr proxy_server_addr,
	- u_short * proxy_server_port, struct in_addr src_addr,
	+ u_short *proxy_server_port, struct in_addr src_addr,
	struct in_addr dst_addr, u_short dst_port, u_char ip_p)
	{
	struct proxy_entry *ptr;
	@@ -465,18 +464,21 @@
	u_short proxy_port;

	proxy_port = ptr->proxy_port;
	- if ((dst_port == proxy_port \|\| proxy_port == 0)
	- && ip_p == ptr->proto
	- && src_addr.s_addr != ptr->server_addr.s_addr) {
	+ if ((dst_port == proxy_port \|\| proxy_port == 0) &&
	+ ip_p == ptr->proto &&
	+ src_addr.s_addr != ptr->server_addr.s_addr) {
	struct in_addr src_addr_masked;
	struct in_addr dst_addr_masked;

	- src_addr_masked.s_addr = src_addr.s_addr & ptr->src_mask.s_addr;
	- dst_addr_masked.s_addr = dst_addr.s_addr & ptr->dst_mask.s_addr;
	+ src_addr_masked.s_addr = src_addr.s_addr &
	+ ptr->src_mask.s_addr;
	+ dst_addr_masked.s_addr = dst_addr.s_addr &
	+ ptr->dst_mask.s_addr;

	- if ((src_addr_masked.s_addr == ptr->src_addr.s_addr)
	- && (dst_addr_masked.s_addr == ptr->dst_addr.s_addr)) {
	- if ((*proxy_server_port = ptr->server_port) == 0)
	+ if ((src_addr_masked.s_addr == ptr->src_addr.s_addr) &&
	+ (dst_addr_masked.s_addr == ptr->dst_addr.s_addr)) {
	+ if ((*proxy_server_port = ptr->server_port) ==
	+ 0)
	*proxy_server_port = dst_port;
	*proxy_server_addr = ptr->server_addr;
	return (ptr->proxy_type);
	@@ -489,10 +491,8 @@
	}

	void
	-ProxyModify(struct libalias la, struct alias_link lnk,
	- struct ip *pip,
	- int maxpacketsize,
	- int proxy_type)
	+ProxyModify(struct libalias la, struct alias_link lnk, struct ip *pip,
	+ int maxpacketsize, int proxy_type)
	{
	LIBALIAS_LOCK_ASSERT(la);
	(void)la;
	@@ -591,15 +591,15 @@
	str_server_port[0] = 0;

	/* Parse command string with state machine */
	-#define STATE_READ_KEYWORD 0
	-#define STATE_READ_TYPE 1
	-#define STATE_READ_PORT 2
	-#define STATE_READ_SERVER 3
	-#define STATE_READ_RULE 4
	-#define STATE_READ_DELETE 5
	-#define STATE_READ_PROTO 6
	-#define STATE_READ_SRC 7
	-#define STATE_READ_DST 8
	+#define STATE_READ_KEYWORD 0
	+#define STATE_READ_TYPE 1
	+#define STATE_READ_PORT 2
	+#define STATE_READ_SERVER 3
	+#define STATE_READ_RULE 4
	+#define STATE_READ_DELETE 5
	+#define STATE_READ_PROTO 6
	+#define STATE_READ_SRC 7
	+#define STATE_READ_DST 8
	state = STATE_READ_KEYWORD;
	token = strsep(&res, " \t");
	token_count = 0;
	@@ -691,7 +691,7 @@
	state = STATE_READ_KEYWORD;
	break;

	- case STATE_READ_DELETE: {
	+ case STATE_READ_DELETE: {
	int err;
	int rule_to_delete;

	Index: sys/netinet/libalias/alias_sctp.h
	===================================================================
	--- sys/netinet/libalias/alias_sctp.h
	+++ sys/netinet/libalias/alias_sctp.h
	@@ -34,7 +34,8 @@
	* with leadership and advice from Jason But
	*
	* The design is outlined in CAIA technical report number 080618A
	- * (D. Hayes and J. But, "Alias_sctp Version 0.1: SCTP NAT implementation in IPFW")
	+ * (D. Hayes and J. But, "Alias_sctp Version 0.1: SCTP NAT implementation in
	+ * IPFW")
	*
	* Development is part of the CAIA SONATA project,
	* proposed by Jason But and Grenville Armitage:
	@@ -47,70 +48,72 @@
	*
	*/

	-
	#ifndef _ALIAS_SCTP_H_
	#define _ALIAS_SCTP_H_

	#include <sys/param.h>
	#ifdef _KERNEL
	+#include <sys/kernel.h>
	#include <sys/malloc.h>
	#include <sys/module.h>
	-#include <sys/kernel.h>
	#include <sys/proc.h>
	-#include <sys/uio.h>
	#include <sys/socketvar.h>
	#include <sys/syslog.h>
	+#include <sys/uio.h>
	#endif // #ifdef _KERNEL
	#include <sys/types.h>
	-
	#include <sys/queue.h>
	-#include <sys/types.h>
	#include <sys/time.h>

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>

	/**
	- * These are defined in sctp_os_bsd.h, but it can't be included due to its local file
	- * inclusion, so I'm defining them here.
	+ * These are defined in sctp_os_bsd.h, but it can't be included due to its local
	+ * file inclusion, so I'm defining them here.
	*
	*/
	#include <machine/cpufunc.h>
	/* The packed define for 64 bit platforms */
	#ifndef SCTP_PACKED
	#define SCTP_PACKED __attribute__((packed))
	-#endif //#ifndef SCTP_PACKED
	+#endif // #ifndef SCTP_PACKED
	#ifndef SCTP_UNUSED
	#define SCTP_UNUSED __attribute__((unused))
	-#endif //#ifndef SCTP_UNUSED
	+#endif // #ifndef SCTP_UNUSED

	#include <netinet/sctp.h>
	-//#include <netinet/sctp_os_bsd.h> --might be needed later for mbuf stuff
	+// #include <netinet/sctp_os_bsd.h> --might be needed later for mbuf stuff
	#include <netinet/sctp_header.h>

	#ifndef _KERNEL
	-#include <stdlib.h>
	#include <stdio.h>
	-#endif //#ifdef _KERNEL
	-
	-#define LINK_SCTP IPPROTO_SCTP
	-
	-#define SN_TO_LOCAL 0 /*< packet traveling from global to local /
	-#define SN_TO_GLOBAL 1 /*< packet traveling from local to global /
	-#define SN_TO_NODIR 99 /*< used where direction is not important /
	-
	-#define SN_NAT_PKT 0x0000 /*< Network Address Translate packet /
	-#define SN_DROP_PKT 0x0001 /*< drop packet (don't forward it) /
	-#define SN_PROCESSING_ERROR 0x0003 /*< Packet processing error /
	-#define SN_REPLY_ABORT 0x0010 /*< Reply with ABORT to sender (don't forward it) /
	-#define SN_SEND_ABORT 0x0020 /*< Send ABORT to destination /
	-#define SN_TX_ABORT 0x0030 /*< mask for transmitting abort /
	-#define SN_REFLECT_ERROR 0x0100 /*< Reply with ERROR to sender on OOTB packet Tbit set /
	-#define SN_REPLY_ERROR 0x0200 /*< Reply with ERROR to sender on ASCONF clash /
	-#define SN_TX_ERROR 0x0300 /*< mask for transmitting error /
	-
	-#define PKT_ALIAS_RESPOND 0x1000 /*< Signal to libalias that there is a response packet to send /
	+#include <stdlib.h>
	+#endif // #ifdef _KERNEL
	+
	+#define LINK_SCTP IPPROTO_SCTP
	+
	+#define SN_TO_LOCAL 0 /*< packet traveling from global to local /
	+#define SN_TO_GLOBAL 1 /*< packet traveling from local to global /
	+#define SN_TO_NODIR 99 /*< used where direction is not important /
	+
	+#define SN_NAT_PKT 0x0000 /*< Network Address Translate packet /
	+#define SN_DROP_PKT 0x0001 /*< drop packet (don't forward it) /
	+#define SN_PROCESSING_ERROR 0x0003 /*< Packet processing error /
	+#define SN_REPLY_ABORT \
	+ 0x0010 /*< Reply with ABORT to sender (don't forward it) /
	+#define SN_SEND_ABORT 0x0020 /*< Send ABORT to destination /
	+#define SN_TX_ABORT 0x0030 /*< mask for transmitting abort /
	+#define SN_REFLECT_ERROR \
	+ 0x0100 /*< Reply with ERROR to sender on OOTB packet Tbit set /
	+#define SN_REPLY_ERROR 0x0200 /**< Reply with ERROR to sender on ASCONF clash \
	+ */
	+#define SN_TX_ERROR 0x0300 /*< mask for transmitting error /
	+
	+#define PKT_ALIAS_RESPOND \
	+ 0x1000 /**< Signal to libalias that there is a response packet to send \
	+ */
	/*
	* Data structures
	*/
	@@ -123,38 +126,45 @@
	* Information is stored in network byte order (as is libalias)***
	*/
	struct sctp_nat_assoc {
	- uint32_t l_vtag; /*< local side verification tag /
	- uint16_t l_port; /*< local side port number /
	- uint32_t g_vtag; /*< global side verification tag /
	- uint16_t g_port; /*< global side port number /
	- struct in_addr l_addr; /*< local ip address /
	- struct in_addr a_addr; /*< alias ip address /
	- int state; /*< current state of NAT association /
	- int TableRegister; /*< stores which look up tables association is registered in /
	- int exp; /*< timer expiration in seconds from uptime /
	- int exp_loc; /*< current location in timer_Q /
	- int num_Gaddr; /*< number of global IP addresses in the list /
	- LIST_HEAD(sctpGlobalAddresshead,sctp_GlobalAddress) Gaddr; /*< List of global addresses /
	- LIST_ENTRY (sctp_nat_assoc) list_L; /*< Linked list of pointers for Local table/
	- LIST_ENTRY (sctp_nat_assoc) list_G; /*< Linked list of pointers for Global table /
	- LIST_ENTRY (sctp_nat_assoc) timer_Q; /*< Linked list of pointers for timer Q /
	- //Using libalias locking
	+ uint32_t l_vtag; /*< local side verification tag /
	+ uint16_t l_port; /*< local side port number /
	+ uint32_t g_vtag; /*< global side verification tag /
	+ uint16_t g_port; /*< global side port number /
	+ struct in_addr l_addr; /*< local ip address /
	+ struct in_addr a_addr; /*< alias ip address /
	+ int state; /*< current state of NAT association /
	+ int TableRegister; /**< stores which look up tables association is
	+ registered in */
	+ int exp; /*< timer expiration in seconds from uptime /
	+ int exp_loc; /*< current location in timer_Q /
	+ int num_Gaddr; /*< number of global IP addresses in the list /
	+ LIST_HEAD(sctpGlobalAddresshead,
	+ sctp_GlobalAddress) Gaddr; /*< List of global addresses /
	+ LIST_ENTRY(sctp_nat_assoc)
	+ list_L; /*< Linked list of pointers for Local table/
	+ LIST_ENTRY(sctp_nat_assoc)
	+ list_G; /*< Linked list of pointers for Global table /
	+ LIST_ENTRY(sctp_nat_assoc)
	+ timer_Q; /*< Linked list of pointers for timer Q /
	+ // Using libalias locking
	};

	struct sctp_GlobalAddress {
	struct in_addr g_addr;
	- LIST_ENTRY (sctp_GlobalAddress) list_Gaddr; /*< Linked list of pointers for Global table /
	+ LIST_ENTRY(sctp_GlobalAddress)
	+ list_Gaddr; /*< Linked list of pointers for Global table /
	};

	/**
	* @brief SCTP chunk of interest
	*
	- * The only chunks whose contents are of any interest are the INIT and ASCONF_AddIP
	+ * The only chunks whose contents are of any interest are the INIT and
	+ * ASCONF_AddIP
	*/
	union sctpChunkOfInt {
	- struct sctp_init Init; /< Pointer to Init Chunk /
	- struct sctp_init_ack InitAck; /< Pointer to Init Chunk /
	- struct sctp_paramhdr Asconf; /< Pointer to ASCONF chunk /
	+ struct sctp_init Init; /< Pointer to Init Chunk /
	+ struct sctp_init_ack InitAck; /< Pointer to Init Chunk /
	+ struct sctp_paramhdr Asconf; /< Pointer to ASCONF chunk /
	};

	/**
	@@ -163,15 +173,17 @@
	* Structure containing the relevant information from the SCTP message
	*/
	struct sctp_nat_msg {
	- uint16_t msg; /*< one of the key messages defined above /
	+ uint16_t msg; /*< one of the key messages defined above /
	#ifdef INET6
	- // struct ip6_hdr ip_hdr; /< pointer to ip packet header / /no inet6 support yet/
	+ // struct ip6_hdr ip_hdr; /< pointer to ip packet header / /*no
	+ // inet6 support yet*/
	#else
	- struct ip ip_hdr; /< pointer to ip packet header /
	-#endif //#ifdef INET6
	- struct sctphdr sctp_hdr; /< pointer to sctp common header /
	- union sctpChunkOfInt sctpchnk; /*< union of pointers to the chunk of interest /
	- int chunk_length; /*< length of chunk of interest /
	+ struct ip ip_hdr; /< pointer to ip packet header /
	+#endif // #ifdef INET6
	+ struct sctphdr sctp_hdr; /< pointer to sctp common header /
	+ union sctpChunkOfInt
	+ sctpchnk; /*< union of pointers to the chunk of interest /
	+ int chunk_length; /*< length of chunk of interest /
	};

	/**
	@@ -180,9 +192,11 @@
	*/

	struct sctp_nat_timer {
	- int loc_time; /*< time in seconds for the current location in the queue /
	- int cur_loc; /*< index of the current location in the circular queue /
	- LIST_HEAD(sctpTimerQ,sctp_nat_assoc) TimerQ; /< List of associations at this position in the timer Q /
	+ int loc_time; /**< time in seconds for the current location in the queue
	+ */
	+ int cur_loc; /*< index of the current location in the circular queue /
	+ LIST_HEAD(sctpTimerQ, sctp_nat_assoc) *
	+ TimerQ; /*< List of associations at this position in the timer Q /
	};

	-#endif //#ifndef _ALIAS_SCTP_H
	+#endif // #ifndef _ALIAS_SCTP_H
	Index: sys/netinet/libalias/alias_sctp.c
	===================================================================
	--- sys/netinet/libalias/alias_sctp.c
	+++ sys/netinet/libalias/alias_sctp.c
	@@ -33,7 +33,8 @@
	* This software was developed by David A. Hayes and Jason But
	*
	* The design is outlined in CAIA technical report number 080618A
	- * (D. Hayes and J. But, "Alias_sctp Version 0.1: SCTP NAT implementation in IPFW")
	+ * (D. Hayes and J. But, "Alias_sctp Version 0.1: SCTP NAT implementation in
	+ * IPFW")
	*
	* Development is part of the CAIA SONATA project,
	* proposed by Jason But and Grenville Armitage:
	@@ -70,28 +71,32 @@
	* - Dynamic control of hash-table size
	*/

	-
	#ifdef _KERNEL
	#include <sys/param.h>
	-#include <sys/gsb_crc32.h>
	#include <sys/systm.h>
	+#include <sys/gsb_crc32.h>
	#include <sys/kernel.h>
	#include <sys/module.h>
	#include <sys/stdarg.h>
	#include <sys/syslog.h>
	-#include <netinet/libalias/alias_sctp.h>
	+
	+#include <machine/in_cksum.h>
	+
	#include <netinet/libalias/alias.h>
	#include <netinet/libalias/alias_local.h>
	+#include <netinet/libalias/alias_sctp.h>
	#include <netinet/sctp_crc32.h>
	-#include <machine/in_cksum.h>
	#else
	-#include "alias_sctp.h"
	+#include <sys/libkern.h>
	+
	+#include <machine/in_cksum.h>
	+
	#include <arpa/inet.h>
	+
	#include "alias.h"
	#include "alias_local.h"
	-#include <machine/in_cksum.h>
	-#include <sys/libkern.h>
	-#endif //#ifdef _KERNEL
	+#include "alias_sctp.h"
	+#endif // #ifdef _KERNEL

	/* ----------------------------------------------------------------------
	* FUNCTION PROTOTYPES
	@@ -102,55 +107,66 @@
	struct sctp_nat_msg sm, struct sctp_nat_assoc *passoc);
	static int GetAsconfVtags(struct libalias la, struct sctp_nat_msg sm,
	uint32_t l_vtag, uint32_t g_vtag, int direction);
	-static int IsASCONFack(struct libalias la, struct sctp_nat_msg sm, int direction);
	-
	-static void AddGlobalIPAddresses(struct sctp_nat_msg sm, struct sctp_nat_assoc assoc, int direction);
	-static int Add_Global_Address_to_List(struct sctp_nat_assoc assoc, struct sctp_GlobalAddress G_addr);
	-static void RmGlobalIPAddresses(struct sctp_nat_msg sm, struct sctp_nat_assoc assoc, int direction);
	-static int IsADDorDEL(struct libalias la, struct sctp_nat_msg sm, int direction);
	+static int IsASCONFack(struct libalias la, struct sctp_nat_msg sm,
	+ int direction);
	+
	+static void AddGlobalIPAddresses(struct sctp_nat_msg *sm,
	+ struct sctp_nat_assoc *assoc, int direction);
	+static int Add_Global_Address_to_List(struct sctp_nat_assoc *assoc,
	+ struct sctp_GlobalAddress *G_addr);
	+static void RmGlobalIPAddresses(struct sctp_nat_msg *sm,
	+ struct sctp_nat_assoc *assoc, int direction);
	+static int IsADDorDEL(struct libalias la, struct sctp_nat_msg sm,
	+ int direction);

	/* State Machine Functions */
	-static int ProcessSctpMsg(struct libalias *la, int direction, \
	+static int ProcessSctpMsg(struct libalias *la, int direction,
	struct sctp_nat_msg sm, struct sctp_nat_assoc assoc);

	-static int ID_process(struct libalias *la, int direction,\
	+static int ID_process(struct libalias *la, int direction,
	struct sctp_nat_assoc assoc, struct sctp_nat_msg sm);
	-static int INi_process(struct libalias *la, int direction,\
	+static int INi_process(struct libalias *la, int direction,
	struct sctp_nat_assoc assoc, struct sctp_nat_msg sm);
	-static int INa_process(struct libalias *la, int direction,\
	+static int INa_process(struct libalias *la, int direction,
	struct sctp_nat_assoc assoc, struct sctp_nat_msg sm);
	-static int UP_process(struct libalias *la, int direction,\
	+static int UP_process(struct libalias *la, int direction,
	struct sctp_nat_assoc assoc, struct sctp_nat_msg sm);
	-static int CL_process(struct libalias *la, int direction,\
	+static int CL_process(struct libalias *la, int direction,
	struct sctp_nat_assoc assoc, struct sctp_nat_msg sm);
	-static void TxAbortErrorM(struct libalias la, struct sctp_nat_msg sm,\
	+static void TxAbortErrorM(struct libalias la, struct sctp_nat_msg sm,
	struct sctp_nat_assoc *assoc, int sndrply, int direction);

	/* Hash Table Functions */
	-static struct sctp_nat_assoc *
	-FindSctpLocal(struct libalias *la, struct in_addr l_addr, struct in_addr g_addr, uint32_t l_vtag, uint16_t l_port, uint16_t g_port);
	-static struct sctp_nat_assoc *
	-FindSctpGlobal(struct libalias la, struct in_addr g_addr, uint32_t g_vtag, uint16_t g_port, uint16_t l_port, int partial_match);
	-static struct sctp_nat_assoc *
	-FindSctpGlobalClash(struct libalias la, struct sctp_nat_assoc Cassoc);
	-static struct sctp_nat_assoc *
	-FindSctpLocalT(struct libalias *la, struct in_addr g_addr, uint32_t l_vtag, uint16_t g_port, uint16_t l_port);
	-static struct sctp_nat_assoc *
	-FindSctpGlobalT(struct libalias *la, struct in_addr g_addr, uint32_t g_vtag, uint16_t l_port, uint16_t g_port);
	-
	-static int AddSctpAssocLocal(struct libalias la, struct sctp_nat_assoc assoc, struct in_addr g_addr);
	-static int AddSctpAssocGlobal(struct libalias la, struct sctp_nat_assoc assoc);
	+static struct sctp_nat_assoc FindSctpLocal(struct libalias la,
	+ struct in_addr l_addr, struct in_addr g_addr, uint32_t l_vtag,
	+ uint16_t l_port, uint16_t g_port);
	+static struct sctp_nat_assoc FindSctpGlobal(struct libalias la,
	+ struct in_addr g_addr, uint32_t g_vtag, uint16_t g_port, uint16_t l_port,
	+ int *partial_match);
	+static struct sctp_nat_assoc FindSctpGlobalClash(struct libalias la,
	+ struct sctp_nat_assoc *Cassoc);
	+static struct sctp_nat_assoc FindSctpLocalT(struct libalias la,
	+ struct in_addr g_addr, uint32_t l_vtag, uint16_t g_port, uint16_t l_port);
	+static struct sctp_nat_assoc FindSctpGlobalT(struct libalias la,
	+ struct in_addr g_addr, uint32_t g_vtag, uint16_t l_port, uint16_t g_port);
	+
	+static int AddSctpAssocLocal(struct libalias la, struct sctp_nat_assoc assoc,
	+ struct in_addr g_addr);
	+static int AddSctpAssocGlobal(struct libalias *la,
	+ struct sctp_nat_assoc *assoc);
	static void RmSctpAssoc(struct libalias la, struct sctp_nat_assoc assoc);
	static void freeGlobalAddressList(struct sctp_nat_assoc *assoc);

	/* Timer Queue Functions */
	static void sctp_AddTimeOut(struct libalias la, struct sctp_nat_assoc assoc);
	static void sctp_RmTimeOut(struct libalias la, struct sctp_nat_assoc assoc);
	-static void sctp_ResetTimeOut(struct libalias la, struct sctp_nat_assoc assoc, int newexp);
	+static void sctp_ResetTimeOut(struct libalias la, struct sctp_nat_assoc assoc,
	+ int newexp);
	void sctp_CheckTimers(struct libalias *la);

	/* Logging Functions */
	-static void logsctperror(char *errormsg, uint32_t vtag, int error, int direction);
	+static void logsctperror(char *errormsg, uint32_t vtag, int error,
	+ int direction);
	static void logsctpparse(int direction, struct sctp_nat_msg *sm);
	static void logsctpassoc(struct sctp_nat_assoc assoc, char s);
	static void logTimerQ(struct libalias *la);
	@@ -185,17 +201,17 @@
	static MALLOC_DEFINE(M_SCTPNAT, "sctpnat", "sctp nat dbs");
	/* Use kernel allocator. */
	#ifdef _SYS_MALLOC_H_
	-#define sn_malloc(x) malloc(x, M_SCTPNAT, M_NOWAIT\|M_ZERO)
	-#define sn_calloc(n,x) mallocarray((n), (x), M_SCTPNAT, M_NOWAIT\|M_ZERO)
	-#define sn_free(x) free(x, M_SCTPNAT)
	-#endif// #ifdef _SYS_MALLOC_H_
	+#define sn_malloc(x) malloc(x, M_SCTPNAT, M_NOWAIT \| M_ZERO)
	+#define sn_calloc(n, x) mallocarray((n), (x), M_SCTPNAT, M_NOWAIT \| M_ZERO)
	+#define sn_free(x) free(x, M_SCTPNAT)
	+#endif // #ifdef _SYS_MALLOC_H_

	-#else //#ifdef _KERNEL
	-#define sn_malloc(x) malloc(x)
	-#define sn_calloc(n, x) calloc(n, x)
	-#define sn_free(x) free(x)
	+#else // #ifdef _KERNEL
	+#define sn_malloc(x) malloc(x)
	+#define sn_calloc(n, x) calloc(n, x)
	+#define sn_free(x) free(x)

	-#endif //#ifdef _KERNEL
	+#endif // #ifdef _KERNEL

	/** @defgroup packet_parser SCTP Packet Parsing
	*
	@@ -205,107 +221,143 @@
	* - SCTP message types for storing in the sctp_nat_msg structure @{
	*/

	-#define SN_SCTP_FIRSTCHUNK(sctphead) (struct sctp_chunkhdr )(((char )sctphead) + sizeof(struct sctphdr))
	-/*< Returns a pointer to the first chunk in an SCTP packet given a pointer to the SCTP header /
	+#define SN_SCTP_FIRSTCHUNK(sctphead) \
	+ (struct sctp_chunkhdr )(((char )sctphead) + sizeof(struct sctphdr))
	+/**< Returns a pointer to the first chunk in an SCTP packet given a pointer to
	+ * the SCTP header */

	-#define SN_SCTP_NEXTCHUNK(chunkhead) (struct sctp_chunkhdr )(((char )chunkhead) + SCTP_SIZE32(ntohs(chunkhead->chunk_length)))
	-/*< Returns a pointer to the next chunk in an SCTP packet given a pointer to the current chunk /
	+#define SN_SCTP_NEXTCHUNK(chunkhead) \
	+ (struct sctp_chunkhdr )(((char )chunkhead) + \
	+ SCTP_SIZE32(ntohs(chunkhead->chunk_length)))
	+/**< Returns a pointer to the next chunk in an SCTP packet given a pointer to
	+ * the current chunk */

	-#define SN_SCTP_NEXTPARAM(param) (struct sctp_paramhdr )(((char )param) + SCTP_SIZE32(ntohs(param->param_length)))
	-/*< Returns a pointer to the next parameter in an SCTP packet given a pointer to the current parameter /
	+#define SN_SCTP_NEXTPARAM(param) \
	+ (struct sctp_paramhdr )(((char )param) + \
	+ SCTP_SIZE32(ntohs(param->param_length)))
	+/**< Returns a pointer to the next parameter in an SCTP packet given a pointer
	+ * to the current parameter */

	-#define SN_MIN_CHUNK_SIZE 4 /*< Smallest possible SCTP chunk size in bytes /
	-#define SN_MIN_PARAM_SIZE 4 /*< Smallest possible SCTP param size in bytes /
	-#define SN_VTAG_PARAM_SIZE 12 /*< Size of SCTP ASCONF vtag param in bytes /
	-#define SN_ASCONFACK_PARAM_SIZE 8 /*< Size of SCTP ASCONF ACK param in bytes /
	+#define SN_MIN_CHUNK_SIZE 4 /*< Smallest possible SCTP chunk size in bytes /
	+#define SN_MIN_PARAM_SIZE 4 /*< Smallest possible SCTP param size in bytes /
	+#define SN_VTAG_PARAM_SIZE 12 /*< Size of SCTP ASCONF vtag param in bytes /
	+#define SN_ASCONFACK_PARAM_SIZE \
	+ 8 /*< Size of SCTP ASCONF ACK param in bytes /

	/* Packet parsing return codes */
	-#define SN_PARSE_OK 0 /*< Packet parsed for SCTP messages /
	-#define SN_PARSE_ERROR_IPSHL 1 /*< Packet parsing error - IP and SCTP common header len /
	-#define SN_PARSE_ERROR_AS_MALLOC 2 /*< Packet parsing error - assoc malloc /
	-#define SN_PARSE_ERROR_CHHL 3 /*< Packet parsing error - Chunk header len /
	-#define SN_PARSE_ERROR_DIR 4 /*< Packet parsing error - Direction /
	-#define SN_PARSE_ERROR_VTAG 5 /*< Packet parsing error - Vtag /
	-#define SN_PARSE_ERROR_CHUNK 6 /*< Packet parsing error - Chunk /
	-#define SN_PARSE_ERROR_PORT 7 /*< Packet parsing error - Port=0 /
	-#define SN_PARSE_ERROR_LOOKUP 8 /*< Packet parsing error - Lookup /
	-#define SN_PARSE_ERROR_PARTIALLOOKUP 9 /*< Packet parsing error - partial lookup only found /
	-#define SN_PARSE_ERROR_LOOKUP_ABORT 10 /*< Packet parsing error - Lookup - but abort packet /
	+#define SN_PARSE_OK 0 /*< Packet parsed for SCTP messages /
	+#define SN_PARSE_ERROR_IPSHL \
	+ 1 /*< Packet parsing error - IP and SCTP common header len /
	+#define SN_PARSE_ERROR_AS_MALLOC 2 /*< Packet parsing error - assoc malloc /
	+#define SN_PARSE_ERROR_CHHL 3 /*< Packet parsing error - Chunk header len /
	+#define SN_PARSE_ERROR_DIR 4 /*< Packet parsing error - Direction /
	+#define SN_PARSE_ERROR_VTAG 5 /*< Packet parsing error - Vtag /
	+#define SN_PARSE_ERROR_CHUNK 6 /*< Packet parsing error - Chunk /
	+#define SN_PARSE_ERROR_PORT 7 /*< Packet parsing error - Port=0 /
	+#define SN_PARSE_ERROR_LOOKUP 8 /*< Packet parsing error - Lookup /
	+#define SN_PARSE_ERROR_PARTIALLOOKUP \
	+ 9 /*< Packet parsing error - partial lookup only found /
	+#define SN_PARSE_ERROR_LOOKUP_ABORT \
	+ 10 /*< Packet parsing error - Lookup - but abort packet /

	/* Alias_sctp performs its processing based on a number of key messages */
	-#define SN_SCTP_ABORT 0x0000 /*< a packet containing an ABORT chunk /
	-#define SN_SCTP_INIT 0x0001 /*< a packet containing an INIT chunk /
	-#define SN_SCTP_INITACK 0x0002 /*< a packet containing an INIT-ACK chunk /
	-#define SN_SCTP_SHUTCOMP 0x0010 /*< a packet containing a SHUTDOWN-COMPLETE chunk /
	-#define SN_SCTP_SHUTACK 0x0020 /*< a packet containing a SHUTDOWN-ACK chunk /
	-#define SN_SCTP_ASCONF 0x0100 /*< a packet containing an ASCONF chunk /
	-#define SN_SCTP_ASCONFACK 0x0200 /*< a packet containing an ASCONF-ACK chunk /
	-#define SN_SCTP_OTHER 0xFFFF /*< a packet containing a chunk that is not of interest /
	+#define SN_SCTP_ABORT 0x0000 /*< a packet containing an ABORT chunk /
	+#define SN_SCTP_INIT 0x0001 /*< a packet containing an INIT chunk /
	+#define SN_SCTP_INITACK 0x0002 /*< a packet containing an INIT-ACK chunk /
	+#define SN_SCTP_SHUTCOMP \
	+ 0x0010 /*< a packet containing a SHUTDOWN-COMPLETE chunk /
	+#define SN_SCTP_SHUTACK 0x0020 /**< a packet containing a SHUTDOWN-ACK chunk \
	+ */
	+#define SN_SCTP_ASCONF 0x0100 /*< a packet containing an ASCONF chunk /
	+#define SN_SCTP_ASCONFACK 0x0200 /**< a packet containing an ASCONF-ACK chunk \
	+ */
	+#define SN_SCTP_OTHER \
	+ 0xFFFF /*< a packet containing a chunk that is not of interest /
	/** @}
	* @defgroup state_machine SCTP NAT State Machine
	*
	* Defines the various states an association can be within the NAT @{
	*/
	-#define SN_ID 0x0000 /*< Idle state /
	-#define SN_INi 0x0010 /*< Initialising, waiting for InitAck state /
	-#define SN_INa 0x0020 /*< Initialising, waiting for AddIpAck state /
	-#define SN_UP 0x0100 /*< Association in UP state /
	-#define SN_CL 0x1000 /*< Closing state /
	-#define SN_RM 0x2000 /*< Removing state /
	+#define SN_ID 0x0000 /*< Idle state /
	+#define SN_INi 0x0010 /*< Initialising, waiting for InitAck state /
	+#define SN_INa 0x0020 /*< Initialising, waiting for AddIpAck state /
	+#define SN_UP 0x0100 /*< Association in UP state /
	+#define SN_CL 0x1000 /*< Closing state /
	+#define SN_RM 0x2000 /*< Removing state /
	/** @}
	* @defgroup Logging Logging Functionality
	*
	* Define various log levels and a macro to call specified log functions only if
	* the current log level (sysctl_log_level) matches the specified level @{
	*/
	-#define SN_LOG_LOW 0
	-#define SN_LOG_EVENT 1
	-#define SN_LOG_INFO 2
	-#define SN_LOG_DETAIL 3
	-#define SN_LOG_DEBUG 4
	-#define SN_LOG_DEBUG_MAX 5
	-
	-#define SN_LOG(level, action) if (sysctl_log_level >= level) { action; } /*< Perform log action ONLY if the current log level meets the specified log level /
	+#define SN_LOG_LOW 0
	+#define SN_LOG_EVENT 1
	+#define SN_LOG_INFO 2
	+#define SN_LOG_DETAIL 3
	+#define SN_LOG_DEBUG 4
	+#define SN_LOG_DEBUG_MAX 5
	+
	+#define SN_LOG(level, action) \
	+ if (sysctl_log_level >= level) { \
	+ action; \
	+ } /**< Perform log action ONLY if the current log level meets the \
	+ specified log level */
	/** @}
	* @defgroup Hash Hash Table Macros and Functions
	*
	* Defines minimum/maximum/default values for the hash table size @{
	*/
	-#define SN_MIN_HASH_SIZE 101 /*< Minimum hash table size (set to stop users choosing stupid values) /
	-#define SN_MAX_HASH_SIZE 1000001 /*< Maximum hash table size (NB must be less than max int) /
	-#define SN_DEFAULT_HASH_SIZE 2003 /*< A reasonable default size for the hash tables /
	-
	-#define SN_LOCAL_TBL 0x01 /*< assoc in local table /
	-#define SN_GLOBAL_TBL 0x02 /*< assoc in global table /
	-#define SN_BOTH_TBL 0x03 /*< assoc in both tables /
	-#define SN_WAIT_TOLOCAL 0x10 /*< assoc waiting for TOLOCAL asconf ACK/
	-#define SN_WAIT_TOGLOBAL 0x20 /*< assoc waiting for TOLOCAL asconf ACK/
	-#define SN_NULL_TBL 0x00 /*< assoc in No table /
	-#define SN_MAX_GLOBAL_ADDRESSES 100 /*< absolute maximum global address count/
	-
	-#define SN_ADD_OK 0 /*< Association added to the table /
	-#define SN_ADD_CLASH 1 /*< Clash when trying to add the assoc. info to the table /
	-
	-#define SN_TABLE_HASH(vtag, port, size) (((u_int) vtag + (u_int) port) % (u_int) size) /*< Calculate the hash table lookup position /
	+#define SN_MIN_HASH_SIZE \
	+ 101 /**< Minimum hash table size (set to stop users choosing stupid \
	+ values) */
	+#define SN_MAX_HASH_SIZE \
	+ 1000001 /*< Maximum hash table size (NB must be less than max int) /
	+#define SN_DEFAULT_HASH_SIZE \
	+ 2003 /*< A reasonable default size for the hash tables /
	+
	+#define SN_LOCAL_TBL 0x01 /*< assoc in local table /
	+#define SN_GLOBAL_TBL 0x02 /*< assoc in global table /
	+#define SN_BOTH_TBL 0x03 /*< assoc in both tables /
	+#define SN_WAIT_TOLOCAL 0x10 /*< assoc waiting for TOLOCAL asconf ACK/
	+#define SN_WAIT_TOGLOBAL 0x20 /*< assoc waiting for TOLOCAL asconf ACK/
	+#define SN_NULL_TBL 0x00 /*< assoc in No table /
	+#define SN_MAX_GLOBAL_ADDRESSES 100 /**< absolute maximum global address \
	+ count*/
	+
	+#define SN_ADD_OK 0 /*< Association added to the table /
	+#define SN_ADD_CLASH \
	+ 1 /*< Clash when trying to add the assoc. info to the table /
	+
	+#define SN_TABLE_HASH(vtag, port, size) \
	+ (((u_int)vtag + (u_int)port) % \
	+ (u_int)size) /*< Calculate the hash table lookup position /
	/** @}
	* @defgroup Timer Timer Queue Macros and Functions
	*
	* Timer macros set minimum/maximum timeout values and calculate timer expiry
	* times for the provided libalias instance @{
	*/
	-#define SN_MIN_TIMER 1
	-#define SN_MAX_TIMER 600
	-#define SN_TIMER_QUEUE_SIZE SN_MAX_TIMER+2
	-
	-#define SN_I_T(la) (LibAliasTime + sysctl_init_timer) /*< INIT State expiration time in seconds /
	-#define SN_U_T(la) (LibAliasTime + sysctl_up_timer) /*< UP State expiration time in seconds /
	-#define SN_C_T(la) (LibAliasTime + sysctl_shutdown_timer) /*< CL State expiration time in seconds /
	-#define SN_X_T(la) (LibAliasTime + sysctl_holddown_timer) /*< Wait after a shutdown complete in seconds /
	+#define SN_MIN_TIMER 1
	+#define SN_MAX_TIMER 600
	+#define SN_TIMER_QUEUE_SIZE SN_MAX_TIMER + 2
	+
	+#define SN_I_T(la) \
	+ (LibAliasTime + \
	+ sysctl_init_timer) /*< INIT State expiration time in seconds /
	+#define SN_U_T(la) \
	+ (LibAliasTime + \
	+ sysctl_up_timer) /*< UP State expiration time in seconds /
	+#define SN_C_T(la) \
	+ (LibAliasTime + \
	+ sysctl_shutdown_timer) /*< CL State expiration time in seconds /
	+#define SN_X_T(la) \
	+ (LibAliasTime + sysctl_holddown_timer) /**< Wait after a shutdown \
	+ complete in seconds */
	/** @}
	* @defgroup sysctl SysCtl Variable and callback function declarations
	*
	- * Sysctl variables to modify NAT functionality in real-time along with associated functions
	- * to manage modifications to the sysctl variables @{
	+ * Sysctl variables to modify NAT functionality in real-time along with
	+ * associated functions to manage modifications to the sysctl variables @{
	*/

	/* Callbacks */
	@@ -323,36 +375,65 @@
	/** @brief net.inet.ip.alias.sctp.log_level */
	static u_int sysctl_log_level = 0; /*< Stores the current level of logging /
	/** @brief net.inet.ip.alias.sctp.init_timer */
	-static u_int sysctl_init_timer = 15; /*< Seconds to hold an association in the table waiting for an INIT-ACK or AddIP-ACK /
	+static u_int sysctl_init_timer =
	+ 15; /**< Seconds to hold an association in the table waiting for an INIT-ACK
	+ or AddIP-ACK */
	/** @brief net.inet.ip.alias.sctp.up_timer */
	-static u_int sysctl_up_timer = 300; /*< Seconds to hold an association in the table while no packets are transmitted /
	+static u_int sysctl_up_timer = 300; /**< Seconds to hold an association in the
	+ table while no packets are transmitted */
	/** @brief net.inet.ip.alias.sctp.shutdown_timer */
	-static u_int sysctl_shutdown_timer = 15; /*< Seconds to hold an association in the table waiting for a SHUTDOWN-COMPLETE /
	+static u_int sysctl_shutdown_timer =
	+ 15; /**< Seconds to hold an association in the table waiting for a
	+ SHUTDOWN-COMPLETE */
	/** @brief net.inet.ip.alias.sctp.holddown_timer */
	-static u_int sysctl_holddown_timer = 0; /*< Seconds to hold an association in the table after it has been shutdown (to allow for lost SHUTDOWN-COMPLETEs) /
	+static u_int sysctl_holddown_timer =
	+ 0; /**< Seconds to hold an association in the table after it has been
	+ shutdown (to allow for lost SHUTDOWN-COMPLETEs) */
	/** @brief net.inet.ip.alias.sctp.hashtable_size */
	-static u_int sysctl_hashtable_size = SN_DEFAULT_HASH_SIZE; /*< Sets the hash table size for any NEW NAT instances (existing instances retain their existing Hash Table /
	+static u_int sysctl_hashtable_size =
	+ SN_DEFAULT_HASH_SIZE; /**< Sets the hash table size for any NEW NAT
	+ instances (existing instances retain their existing
	+ Hash Table */
	/** @brief net.inet.ip.alias.sctp.error_on_ootb */
	-static u_int sysctl_error_on_ootb = 1; /**< NAT response to receipt of OOTB packet
	- (0 - No response, 1 - NAT will send ErrorM only to local side,
	- 2 - NAT will send local ErrorM and global ErrorM if there was a partial association match
	- 3 - NAT will send ErrorM to both local and global) */
	+static u_int sysctl_error_on_ootb =
	+ 1; /**< NAT response to receipt of OOTB packet
	+ (0 - No response, 1 - NAT will send ErrorM only to local side,
	+ 2 - NAT will send local ErrorM and global ErrorM if there was a
	+ partial association match 3 - NAT will send ErrorM to both local and
	+ global) */
	/** @brief net.inet.ip.alias.sctp.accept_global_ootb_addip */
	-static u_int sysctl_accept_global_ootb_addip = 0; /*<NAT responset to receipt of global OOTB AddIP (0 - No response, 1 - NAT will accept OOTB global AddIP messages for processing (Security risk)) /
	+static u_int sysctl_accept_global_ootb_addip =
	+ 0; /**<NAT responset to receipt of global OOTB AddIP (0 - No response, 1 -
	+ NAT will accept OOTB global AddIP messages for processing (Security
	+ risk)) */
	/** @brief net.inet.ip.alias.sctp.initialising_chunk_proc_limit */
	-static u_int sysctl_initialising_chunk_proc_limit = 2; /*< A limit on the number of chunks that should be searched if there is no matching association (DoS prevention) /
	+static u_int sysctl_initialising_chunk_proc_limit =
	+ 2; /**< A limit on the number of chunks that should be searched if there is
	+ no matching association (DoS prevention) */
	/** @brief net.inet.ip.alias.sctp.param_proc_limit */
	-static u_int sysctl_chunk_proc_limit = 5; /*< A limit on the number of chunks that should be searched (DoS prevention) /
	+static u_int sysctl_chunk_proc_limit =
	+ 5; /**< A limit on the number of chunks that should be searched (DoS
	+ prevention) */
	/** @brief net.inet.ip.alias.sctp.param_proc_limit */
	-static u_int sysctl_param_proc_limit = 25; /*< A limit on the number of parameters (in chunks) that should be searched (DoS prevention) /
	+static u_int sysctl_param_proc_limit =
	+ 25; /**< A limit on the number of parameters (in chunks) that should be
	+ searched (DoS prevention) */
	/** @brief net.inet.ip.alias.sctp.track_global_addresses */
	-static u_int sysctl_track_global_addresses = 0; /**< Configures the global address tracking option within the NAT (0 - Global tracking is disabled, > 0 - enables tracking but limits the number of global IP addresses to this value)
	- If set to >=1 the NAT will track that many global IP addresses. This may reduce look up table conflicts, but increases processing */
	-
	-#define SN_NO_ERROR_ON_OOTB 0 /*< Send no errorM on out of the blue packets /
	-#define SN_LOCAL_ERROR_ON_OOTB 1 /*< Send only local errorM on out of the blue packets /
	-#define SN_LOCALandPARTIAL_ERROR_ON_OOTB 2 /*< Send local errorM and global errorM for out of the blue packets only if partial match found /
	-#define SN_ERROR_ON_OOTB 3 /*< Send errorM on out of the blue packets /
	+static u_int sysctl_track_global_addresses =
	+ 0; /**< Configures the global address tracking option within the NAT (0 -
	+ Global tracking is disabled, > 0 - enables tracking but limits the
	+ number of global IP addresses to this value) If set to >=1 the NAT
	+ will track that many global IP addresses. This may reduce look up
	+ table conflicts, but increases processing */
	+
	+#define SN_NO_ERROR_ON_OOTB 0 /**< Send no errorM on out of the blue packets \
	+ */
	+#define SN_LOCAL_ERROR_ON_OOTB \
	+ 1 /*< Send only local errorM on out of the blue packets /
	+#define SN_LOCALandPARTIAL_ERROR_ON_OOTB \
	+ 2 /**< Send local errorM and global errorM for out of the blue packets \
	+ only if partial match found */
	+#define SN_ERROR_ON_OOTB 3 /*< Send errorM on out of the blue packets /

	#ifdef SYSCTL_NODE

	@@ -361,42 +442,42 @@
	SYSCTL_DECL(_net_inet_ip_alias);

	static SYSCTL_NODE(_net_inet_ip_alias, OID_AUTO, sctp,
	- CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL,
	- "SCTP NAT");
	+ CTLFLAG_RW \| CTLFLAG_MPSAFE, NULL, "SCTP NAT");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, log_level,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_log_level, 0, sysctl_chg_loglevel, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_log_level, 0,
	+ sysctl_chg_loglevel, "IU",
	"Level of detail (0 - default, 1 - event, 2 - info, 3 - detail, 4 - debug, 5 - max debug)");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, init_timer,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_init_timer, 0, sysctl_chg_timer, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_init_timer, 0,
	+ sysctl_chg_timer, "IU",
	"Timeout value (s) while waiting for (INIT-ACK\|AddIP-ACK)");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, up_timer,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_up_timer, 0, sysctl_chg_timer, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_up_timer, 0,
	+ sysctl_chg_timer, "IU",
	"Timeout value (s) to keep an association up with no traffic");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, shutdown_timer,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_shutdown_timer, 0, sysctl_chg_timer, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_shutdown_timer, 0,
	+ sysctl_chg_timer, "IU",
	"Timeout value (s) while waiting for SHUTDOWN-COMPLETE");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, holddown_timer,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_holddown_timer, 0, sysctl_chg_timer, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_holddown_timer, 0,
	+ sysctl_chg_timer, "IU",
	"Hold association in table for this many seconds after receiving a SHUTDOWN-COMPLETE");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, hashtable_size,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_hashtable_size, 0, sysctl_chg_hashtable_size, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_hashtable_size, 0,
	+ sysctl_chg_hashtable_size, "IU",
	"Size of hash tables used for NAT lookups (100 < prime_number > 1000001)");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, error_on_ootb,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_error_on_ootb, 0, sysctl_chg_error_on_ootb, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_error_on_ootb, 0,
	+ sysctl_chg_error_on_ootb, "IU",
	"ErrorM sent on receipt of ootb packet:\n\t0 - none,\n"
	"\t1 - to local only,\n"
	"\t2 - to local and global if a partial association match,\n"
	"\t3 - to local and global (DoS risk)");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, accept_global_ootb_addip,
	CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_accept_global_ootb_addip, 0, sysctl_chg_accept_global_ootb_addip, "IU",
	+ &sysctl_accept_global_ootb_addip, 0, sysctl_chg_accept_global_ootb_addip,
	+ "IU",
	"NAT response to receipt of global OOTB AddIP:\n"
	"\t0 - No response,\n"
	"\t1 - NAT will accept OOTB global AddIP messages for processing (Security risk)");
	@@ -407,13 +488,13 @@
	"Number of chunks that should be processed if there is no current "
	"association found:\n\t > 0 (A high value is a DoS risk)");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, chunk_proc_limit,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_chunk_proc_limit, 0, sysctl_chg_chunk_proc_limit, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_chunk_proc_limit, 0,
	+ sysctl_chg_chunk_proc_limit, "IU",
	"Number of chunks that should be processed to find key chunk:\n"
	"\t>= initialising_chunk_proc_limit (A high value is a DoS risk)");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, param_proc_limit,
	- CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT,
	- &sysctl_param_proc_limit, 0, sysctl_chg_param_proc_limit, "IU",
	+ CTLTYPE_UINT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, &sysctl_param_proc_limit, 0,
	+ sysctl_chg_param_proc_limit, "IU",
	"Number of parameters (in a chunk) that should be processed to find key "
	"parameters:\n\t> 1 (A high value is a DoS risk)");
	SYSCTL_PROC(_net_inet_ip_alias_sctp, OID_AUTO, track_global_addresses,
	@@ -431,7 +512,8 @@
	* Updates the variable sysctl_log_level to the provided value and ensures
	* it is in the valid range (SN_LOG_LOW -> SN_LOG_DEBUG)
	*/
	-int sysctl_chg_loglevel(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_loglevel(SYSCTL_HANDLER_ARGS)
	{
	u_int level = (u_int )arg1;
	int error;
	@@ -447,13 +529,15 @@
	}

	/** @ingroup sysctl
	- * @brief sysctl callback for changing net.inet.ip.fw.sctp.(init_timer\|up_timer\|shutdown_timer)
	+ * @brief sysctl callback for changing
	+ * net.inet.ip.fw.sctp.(init_timer\|up_timer\|shutdown_timer)
	*
	* Updates the timer-based sysctl variables. The new values are sanity-checked
	* to make sure that they are within the range SN_MIN_TIMER-SN_MAX_TIMER. The
	* holddown timer is allowed to be 0
	*/
	-int sysctl_chg_timer(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_timer(SYSCTL_HANDLER_ARGS)
	{
	u_int timer = (u_int )arg1;
	int error;
	@@ -482,7 +566,8 @@
	* if it is prime. We approximate by checking that (2,3,5,7,11) are not factors,
	* incrementing the user provided value until we find a suitable number.
	*/
	-int sysctl_chg_hashtable_size(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_hashtable_size(SYSCTL_HANDLER_ARGS)
	{
	u_int size = (u_int )arg1;
	int error;
	@@ -491,11 +576,16 @@
	if (error)
	return (error);

	- size = (size < SN_MIN_HASH_SIZE) ? (SN_MIN_HASH_SIZE) : ((size > SN_MAX_HASH_SIZE) ? (SN_MAX_HASH_SIZE) : (size));
	+ size = (size < SN_MIN_HASH_SIZE) ?
	+ (SN_MIN_HASH_SIZE) :
	+ ((size > SN_MAX_HASH_SIZE) ? (SN_MAX_HASH_SIZE) : (size));

	size \|= 0x00000001; /* make odd */

	- for (;(((size % 3) == 0) \|\| ((size % 5) == 0) \|\| ((size % 7) == 0) \|\| ((size % 11) == 0)); size+=2);
	+ for (; (((size % 3) == 0) \|\| ((size % 5) == 0) \|\| ((size % 7) == 0) \|\|
	+ ((size % 11) == 0));
	+ size += 2)
	+ ;
	sysctl_hashtable_size = size;

	return (0);
	@@ -511,7 +601,8 @@
	* a partial association match
	* If set to 3, an ErrorM is sent to both local and global sides (DoS) risk.
	*/
	-int sysctl_chg_error_on_ootb(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_error_on_ootb(SYSCTL_HANDLER_ARGS)
	{
	u_int flag = (u_int )arg1;
	int error;
	@@ -520,18 +611,21 @@
	if (error)
	return (error);

	- sysctl_error_on_ootb = (flag > SN_ERROR_ON_OOTB) ? SN_ERROR_ON_OOTB: flag;
	+ sysctl_error_on_ootb = (flag > SN_ERROR_ON_OOTB) ? SN_ERROR_ON_OOTB :
	+ flag;

	return (0);
	}

	/** @ingroup sysctl
	- * @brief sysctl callback for changing net.inet.ip.alias.sctp.accept_global_ootb_addip
	+ * @brief sysctl callback for changing
	+ * net.inet.ip.alias.sctp.accept_global_ootb_addip
	*
	- * If set to 1 the NAT will accept ootb global addip messages for processing (Security risk)
	- * Default is 0, only responding to local ootb AddIP messages
	+ * If set to 1 the NAT will accept ootb global addip messages for processing
	+ * (Security risk) Default is 0, only responding to local ootb AddIP messages
	*/
	-int sysctl_chg_accept_global_ootb_addip(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_accept_global_ootb_addip(SYSCTL_HANDLER_ARGS)
	{
	u_int flag = (u_int )arg1;
	int error;
	@@ -540,19 +634,21 @@
	if (error)
	return (error);

	- sysctl_accept_global_ootb_addip = (flag == 1) ? 1: 0;
	+ sysctl_accept_global_ootb_addip = (flag == 1) ? 1 : 0;

	return (0);
	}

	/** @ingroup sysctl
	- * @brief sysctl callback for changing net.inet.ip.alias.sctp.initialising_chunk_proc_limit
	+ * @brief sysctl callback for changing
	+ * net.inet.ip.alias.sctp.initialising_chunk_proc_limit
	*
	* Updates the initialising_chunk_proc_limit sysctl variable. Number of chunks
	* that should be processed if there is no current association found: > 0 (A
	* high value is a DoS risk)
	*/
	-int sysctl_chg_initialising_chunk_proc_limit(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_initialising_chunk_proc_limit(SYSCTL_HANDLER_ARGS)
	{
	u_int proclimit = (u_int )arg1;
	int error;
	@@ -561,9 +657,11 @@
	if (error)
	return (error);

	- sysctl_initialising_chunk_proc_limit = (proclimit < 1) ? 1: proclimit;
	- sysctl_chunk_proc_limit =
	- (sysctl_chunk_proc_limit < sysctl_initialising_chunk_proc_limit) ? sysctl_initialising_chunk_proc_limit : sysctl_chunk_proc_limit;
	+ sysctl_initialising_chunk_proc_limit = (proclimit < 1) ? 1 : proclimit;
	+ sysctl_chunk_proc_limit = (sysctl_chunk_proc_limit <
	+ sysctl_initialising_chunk_proc_limit) ?
	+ sysctl_initialising_chunk_proc_limit :
	+ sysctl_chunk_proc_limit;

	return (0);
	}
	@@ -575,7 +673,8 @@
	* Number of chunks that should be processed to find key chunk:
	* >= initialising_chunk_proc_limit (A high value is a DoS risk)
	*/
	-int sysctl_chg_chunk_proc_limit(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_chunk_proc_limit(SYSCTL_HANDLER_ARGS)
	{
	u_int proclimit = (u_int )arg1;
	int error;
	@@ -584,8 +683,10 @@
	if (error)
	return (error);

	- sysctl_chunk_proc_limit =
	- (proclimit < sysctl_initialising_chunk_proc_limit) ? sysctl_initialising_chunk_proc_limit : proclimit;
	+ sysctl_chunk_proc_limit = (proclimit <
	+ sysctl_initialising_chunk_proc_limit) ?
	+ sysctl_initialising_chunk_proc_limit :
	+ proclimit;

	return (0);
	}
	@@ -597,7 +698,8 @@
	* Number of parameters that should be processed to find key parameters:
	* > 1 (A high value is a DoS risk)
	*/
	-int sysctl_chg_param_proc_limit(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_param_proc_limit(SYSCTL_HANDLER_ARGS)
	{
	u_int proclimit = (u_int )arg1;
	int error;
	@@ -606,20 +708,21 @@
	if (error)
	return (error);

	- sysctl_param_proc_limit =
	- (proclimit < 2) ? 2 : proclimit;
	+ sysctl_param_proc_limit = (proclimit < 2) ? 2 : proclimit;

	return (0);
	}

	/** @ingroup sysctl
	- * @brief sysctl callback for changing net.inet.ip.alias.sctp.track_global_addresses
	+ * @brief sysctl callback for changing
	+ *net.inet.ip.alias.sctp.track_global_addresses
	*
	*Configures the global address tracking option within the NAT (0 - Global
	*tracking is disabled, > 0 - enables tracking but limits the number of global
	*IP addresses to this value)
	*/
	-int sysctl_chg_track_global_addresses(SYSCTL_HANDLER_ARGS)
	+int
	+sysctl_chg_track_global_addresses(SYSCTL_HANDLER_ARGS)
	{
	u_int num_to_track = (u_int )arg1;
	int error;
	@@ -628,7 +731,10 @@
	if (error)
	return (error);

	- sysctl_track_global_addresses = (num_to_track > SN_MAX_GLOBAL_ADDRESSES) ? SN_MAX_GLOBAL_ADDRESSES : num_to_track;
	+ sysctl_track_global_addresses = (num_to_track >
	+ SN_MAX_GLOBAL_ADDRESSES) ?
	+ SN_MAX_GLOBAL_ADDRESSES :
	+ num_to_track;

	return (0);
	}
	@@ -652,10 +758,15 @@
	int i;
	la->sctpNatTableSize = sysctl_hashtable_size;
	SN_LOG(SN_LOG_EVENT,
	- SctpAliasLog("Initialising SCTP NAT Instance (hash_table_size:%d)\n", la->sctpNatTableSize));
	- la->sctpTableLocal = sn_calloc(la->sctpNatTableSize, sizeof(struct sctpNatTableL));
	- la->sctpTableGlobal = sn_calloc(la->sctpNatTableSize, sizeof(struct sctpNatTableG));
	- la->sctpNatTimer.TimerQ = sn_calloc(SN_TIMER_QUEUE_SIZE, sizeof(struct sctpTimerQ));
	+ SctpAliasLog(
	+ "Initialising SCTP NAT Instance (hash_table_size:%d)\n",
	+ la->sctpNatTableSize));
	+ la->sctpTableLocal = sn_calloc(la->sctpNatTableSize,
	+ sizeof(struct sctpNatTableL));
	+ la->sctpTableGlobal = sn_calloc(la->sctpNatTableSize,
	+ sizeof(struct sctpNatTableG));
	+ la->sctpNatTimer.TimerQ = sn_calloc(SN_TIMER_QUEUE_SIZE,
	+ sizeof(struct sctpTimerQ));
	/* Initialise hash table */
	for (i = 0; i < la->sctpNatTableSize; i++) {
	LIST_INIT(&la->sctpTableLocal[i]);
	@@ -666,9 +777,10 @@
	for (i = 0; i < SN_TIMER_QUEUE_SIZE; i++)
	LIST_INIT(&la->sctpNatTimer.TimerQ[i]);
	#ifdef _KERNEL
	- la->sctpNatTimer.loc_time=time_uptime; /* LibAliasTime is not set yet */
	+ la->sctpNatTimer.loc_time =
	+ time_uptime; /* LibAliasTime is not set yet */
	#else
	- la->sctpNatTimer.loc_time=LibAliasTime;
	+ la->sctpNatTimer.loc_time = LibAliasTime;
	#endif
	la->sctpNatTimer.cur_loc = 0;
	la->sctpLinkCount = 0;
	@@ -690,11 +802,10 @@
	AliasSctpTerm(struct libalias *la)
	{
	struct sctp_nat_assoc assoc1, assoc2;
	- int i;
	+ int i;

	LIBALIAS_LOCK_ASSERT(la);
	- SN_LOG(SN_LOG_EVENT,
	- SctpAliasLog("Removing SCTP NAT Instance\n"));
	+ SN_LOG(SN_LOG_EVENT, SctpAliasLog("Removing SCTP NAT Instance\n"));
	for (i = 0; i < SN_TIMER_QUEUE_SIZE; i++) {
	assoc1 = LIST_FIRST(&la->sctpNatTimer.TimerQ[i]);
	while (assoc1 != NULL) {
	@@ -748,7 +859,8 @@
	sctp_CheckTimers(la); /* Check timers */

	/* Parse the packet */
	- rtnval = sctp_PktParser(la, direction, pip, &msg, &assoc); //using *char (change to mbuf when get code from paolo)
	+ rtnval = sctp_PktParser(la, direction, pip, &msg,
	+ &assoc); // using *char (change to mbuf when get code from paolo)
	switch (rtnval) {
	case SN_PARSE_OK:
	break;
	@@ -762,40 +874,41 @@
	break;
	}
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("SN_PARSE_ERROR", msg.sctp_hdr->v_tag, rtnval, direction));
	+ logsctperror("SN_PARSE_ERROR", msg.sctp_hdr->v_tag, rtnval,
	+ direction));
	return (PKT_ALIAS_ERROR);
	case SN_PARSE_ERROR_PARTIALLOOKUP:
	if (sysctl_error_on_ootb > SN_LOCALandPARTIAL_ERROR_ON_OOTB) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("SN_PARSE_ERROR", msg.sctp_hdr->v_tag, rtnval, direction));
	+ logsctperror("SN_PARSE_ERROR", msg.sctp_hdr->v_tag,
	+ rtnval, direction));
	return (PKT_ALIAS_ERROR);
	}
	case SN_PARSE_ERROR_LOOKUP:
	if (sysctl_error_on_ootb == SN_ERROR_ON_OOTB \|\|
	- (sysctl_error_on_ootb == SN_LOCALandPARTIAL_ERROR_ON_OOTB && direction == SN_TO_LOCAL) \|\|
	- (sysctl_error_on_ootb == SN_LOCAL_ERROR_ON_OOTB && direction == SN_TO_GLOBAL)) {
	- TxAbortErrorM(la, &msg, assoc, SN_REFLECT_ERROR, direction); /NB assoc=NULL /
	+ (sysctl_error_on_ootb == SN_LOCALandPARTIAL_ERROR_ON_OOTB &&
	+ direction == SN_TO_LOCAL) \|\|
	+ (sysctl_error_on_ootb == SN_LOCAL_ERROR_ON_OOTB &&
	+ direction == SN_TO_GLOBAL)) {
	+ TxAbortErrorM(la, &msg, assoc, SN_REFLECT_ERROR,
	+ direction); /NB assoc=NULL /
	return (PKT_ALIAS_RESPOND);
	}
	default:
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("SN_PARSE_ERROR", msg.sctp_hdr->v_tag, rtnval, direction));
	+ logsctperror("SN_PARSE_ERROR", msg.sctp_hdr->v_tag, rtnval,
	+ direction));
	return (PKT_ALIAS_ERROR);
	}

	- SN_LOG(SN_LOG_DETAIL,
	- logsctpassoc(assoc, "*");
	- logsctpparse(direction, &msg);
	- );
	+ SN_LOG(SN_LOG_DETAIL, logsctpassoc(assoc, "*");
	+ logsctpparse(direction, &msg););

	/* Process the SCTP message */
	rtnval = ProcessSctpMsg(la, direction, &msg, assoc);

	- SN_LOG(SN_LOG_DEBUG_MAX,
	- logsctpassoc(assoc, "-");
	- logSctpLocal(la);
	- logSctpGlobal(la);
	- );
	+ SN_LOG(SN_LOG_DEBUG_MAX, logsctpassoc(assoc, "-"); logSctpLocal(la);
	+ logSctpGlobal(la););
	SN_LOG(SN_LOG_DEBUG, logTimerQ(la));

	switch (rtnval) {
	@@ -804,21 +917,29 @@
	case SN_TO_LOCAL:
	DifferentialChecksum(&(msg.ip_hdr->ip_sum),
	&(assoc->l_addr), &(msg.ip_hdr->ip_dst), 2);
	- msg.ip_hdr->ip_dst = assoc->l_addr; /* change dst address to local address*/
	+ msg.ip_hdr->ip_dst =
	+ assoc->l_addr; /* change dst address to local
	+ address*/
	break;
	case SN_TO_GLOBAL:
	DifferentialChecksum(&(msg.ip_hdr->ip_sum),
	- &(assoc->a_addr), &(msg.ip_hdr->ip_src), 2);
	- msg.ip_hdr->ip_src = assoc->a_addr; /* change src to alias addr*/
	+ &(assoc->a_addr), &(msg.ip_hdr->ip_src), 2);
	+ msg.ip_hdr->ip_src =
	+ assoc->a_addr; /* change src to alias addr*/
	break;
	default:
	- rtnval = SN_DROP_PKT; /* shouldn't get here, but if it does drop packet */
	- SN_LOG(SN_LOG_LOW, logsctperror("ERROR: Invalid direction", msg.sctp_hdr->v_tag, rtnval, direction));
	+ rtnval = SN_DROP_PKT; /* shouldn't get here, but if it
	+ does drop packet */
	+ SN_LOG(SN_LOG_LOW,
	+ logsctperror("ERROR: Invalid direction",
	+ msg.sctp_hdr->v_tag, rtnval, direction));
	break;
	}
	break;
	case SN_DROP_PKT:
	- SN_LOG(SN_LOG_DETAIL, logsctperror("SN_DROP_PKT", msg.sctp_hdr->v_tag, rtnval, direction));
	+ SN_LOG(SN_LOG_DETAIL,
	+ logsctperror("SN_DROP_PKT", msg.sctp_hdr->v_tag, rtnval,
	+ direction));
	break;
	case SN_REPLY_ABORT:
	case SN_REPLY_ERROR:
	@@ -826,9 +947,12 @@
	TxAbortErrorM(la, &msg, assoc, rtnval, direction);
	break;
	default:
	- // big error, remove association and go to idle and write log messages
	- SN_LOG(SN_LOG_LOW, logsctperror("SN_PROCESSING_ERROR", msg.sctp_hdr->v_tag, rtnval, direction));
	- assoc->state = SN_RM;/* Mark for removal*/
	+ // big error, remove association and go to idle and write log
	+ // messages
	+ SN_LOG(SN_LOG_LOW,
	+ logsctperror("SN_PROCESSING_ERROR", msg.sctp_hdr->v_tag,
	+ rtnval, direction));
	+ assoc->state = SN_RM; /* Mark for removal*/
	break;
	}

	@@ -875,8 +999,8 @@
	* up-state is a Heartbeat packet, which is big enough to be transformed to an
	* ErrorM.
	*
	- * We create a temporary character array to store the packet as we are constructing
	- * it. We then populate the array with appropriate values based on:
	+ * We create a temporary character array to store the packet as we are
	+ * constructing it. We then populate the array with appropriate values based on:
	* - Packet type (AbortM \| ErrorM)
	* - Initial packet direction (SN_TO_LOCAL \| SN_TO_GLOBAL)
	* - NAT response (Send packet \| Reply packet)
	@@ -928,24 +1052,29 @@
	}

	static void
	-TxAbortErrorM(struct libalias la, struct sctp_nat_msg sm, struct sctp_nat_assoc *assoc, int sndrply, int direction)
	+TxAbortErrorM(struct libalias la, struct sctp_nat_msg sm,
	+ struct sctp_nat_assoc *assoc, int sndrply, int direction)
	{
	- int sctp_size = sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr) + sizeof(struct sctp_error_cause);
	+ int sctp_size = sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr) +
	+ sizeof(struct sctp_error_cause);
	int ip_size = sizeof(struct ip) + sctp_size;
	int include_error_cause = 1;
	char tmp_ip[ip_size];
	char addrbuf[INET_ADDRSTRLEN];

	- if (ntohs(sm->ip_hdr->ip_len) < ip_size) { /* short packet, cannot send error cause */
	+ if (ntohs(sm->ip_hdr->ip_len) <
	+ ip_size) { /* short packet, cannot send error cause */
	include_error_cause = 0;
	- ip_size = ip_size - sizeof(struct sctp_error_cause);
	- sctp_size = sctp_size - sizeof(struct sctp_error_cause);
	+ ip_size = ip_size - sizeof(struct sctp_error_cause);
	+ sctp_size = sctp_size - sizeof(struct sctp_error_cause);
	}
	/* Assign header pointers packet */
	- struct ip* ip = (struct ip *) tmp_ip;
	- struct sctphdr* sctp_hdr = (struct sctphdr ) ((char ) ip + sizeof(*ip));
	- struct sctp_chunkhdr* chunk_hdr = (struct sctp_chunkhdr ) ((char ) sctp_hdr + sizeof(*sctp_hdr));
	- struct sctp_error_cause* error_cause = (struct sctp_error_cause ) ((char ) chunk_hdr + sizeof(*chunk_hdr));
	+ struct ip ip = (struct ip )tmp_ip;
	+ struct sctphdr sctp_hdr = (struct sctphdr )((char )ip + sizeof(ip));
	+ struct sctp_chunkhdr *chunk_hdr =
	+ (struct sctp_chunkhdr )((char )sctp_hdr + sizeof(*sctp_hdr));
	+ struct sctp_error_cause *error_cause =
	+ (struct sctp_error_cause )((char )chunk_hdr + sizeof(*chunk_hdr));

	/* construct ip header */
	ip->ip_v = sm->ip_hdr->ip_v;
	@@ -957,17 +1086,23 @@
	ip->ip_ttl = 255;
	ip->ip_p = IPPROTO_SCTP;
	/*
	- The definitions below should be removed when they make it into the SCTP stack
	+ The definitions below should be removed when they make it into the
	+ SCTP stack
	*/
	-#define SCTP_MIDDLEBOX_FLAG 0x02
	+#define SCTP_MIDDLEBOX_FLAG 0x02
	#define SCTP_NAT_TABLE_COLLISION 0x00b0
	-#define SCTP_MISSING_NAT 0x00b1
	- chunk_hdr->chunk_type = (sndrply & SN_TX_ABORT) ? SCTP_ABORT_ASSOCIATION : SCTP_OPERATION_ERROR;
	+#define SCTP_MISSING_NAT 0x00b1
	+ chunk_hdr->chunk_type = (sndrply & SN_TX_ABORT) ?
	+ SCTP_ABORT_ASSOCIATION :
	+ SCTP_OPERATION_ERROR;
	chunk_hdr->chunk_flags = SCTP_MIDDLEBOX_FLAG;
	if (include_error_cause) {
	- error_cause->code = htons((sndrply & SN_REFLECT_ERROR) ? SCTP_MISSING_NAT : SCTP_NAT_TABLE_COLLISION);
	+ error_cause->code = htons((sndrply & SN_REFLECT_ERROR) ?
	+ SCTP_MISSING_NAT :
	+ SCTP_NAT_TABLE_COLLISION);
	error_cause->length = htons(sizeof(struct sctp_error_cause));
	- chunk_hdr->chunk_length = htons(sizeof(*chunk_hdr) + sizeof(struct sctp_error_cause));
	+ chunk_hdr->chunk_length = htons(
	+ sizeof(*chunk_hdr) + sizeof(struct sctp_error_cause));
	} else {
	chunk_hdr->chunk_length = htons(sizeof(*chunk_hdr));
	}
	@@ -979,7 +1114,8 @@
	sctp_hdr->v_tag = sm->sctp_hdr->v_tag;
	break;
	case SN_REPLY_ERROR:
	- sctp_hdr->v_tag = (direction == SN_TO_LOCAL) ? assoc->g_vtag : assoc->l_vtag ;
	+ sctp_hdr->v_tag = (direction == SN_TO_LOCAL) ? assoc->g_vtag :
	+ assoc->l_vtag;
	break;
	case SN_SEND_ABORT:
	sctp_hdr->v_tag = sm->sctp_hdr->v_tag;
	@@ -991,8 +1127,10 @@

	/* Set send/reply values */
	if (sndrply == SN_SEND_ABORT) { /pass through NAT /
	- ip->ip_src = (direction == SN_TO_LOCAL) ? sm->ip_hdr->ip_src : assoc->a_addr;
	- ip->ip_dst = (direction == SN_TO_LOCAL) ? assoc->l_addr : sm->ip_hdr->ip_dst;
	+ ip->ip_src = (direction == SN_TO_LOCAL) ? sm->ip_hdr->ip_src :
	+ assoc->a_addr;
	+ ip->ip_dst = (direction == SN_TO_LOCAL) ? assoc->l_addr :
	+ sm->ip_hdr->ip_dst;
	sctp_hdr->src_port = sm->sctp_hdr->src_port;
	sctp_hdr->dest_port = sm->sctp_hdr->dest_port;
	} else { /* reply and reflect */
	@@ -1007,17 +1145,19 @@

	/* calculate SCTP header CRC32 */
	sctp_hdr->checksum = 0;
	- sctp_hdr->checksum = local_sctp_finalize_crc32(calculate_crc32c(0xffffffff, (unsigned char *) sctp_hdr, sctp_size));
	+ sctp_hdr->checksum = local_sctp_finalize_crc32(
	+ calculate_crc32c(0xffffffff, (unsigned char *)sctp_hdr, sctp_size));

	memcpy(sm->ip_hdr, ip, ip_size);

	- SN_LOG(SN_LOG_EVENT,SctpAliasLog("%s %s 0x%x (->%s:%u vtag=0x%x crc=0x%x)\n",
	- ((sndrply == SN_SEND_ABORT) ? "Sending" : "Replying"),
	- ((sndrply & SN_TX_ERROR) ? "ErrorM" : "AbortM"),
	- (include_error_cause ? ntohs(error_cause->code) : 0),
	- inet_ntoa_r(ip->ip_dst, INET_NTOA_BUF(addrbuf)),
	- ntohs(sctp_hdr->dest_port),
	- ntohl(sctp_hdr->v_tag), ntohl(sctp_hdr->checksum)));
	+ SN_LOG(SN_LOG_EVENT,
	+ SctpAliasLog("%s %s 0x%x (->%s:%u vtag=0x%x crc=0x%x)\n",
	+ ((sndrply == SN_SEND_ABORT) ? "Sending" : "Replying"),
	+ ((sndrply & SN_TX_ERROR) ? "ErrorM" : "AbortM"),
	+ (include_error_cause ? ntohs(error_cause->code) : 0),
	+ inet_ntoa_r(ip->ip_dst, INET_NTOA_BUF(addrbuf)),
	+ ntohs(sctp_hdr->dest_port), ntohl(sctp_hdr->v_tag),
	+ ntohl(sctp_hdr->checksum)));
	}

	/* ----------------------------------------------------------------------
	@@ -1048,7 +1188,8 @@
	static int
	sctp_PktParser(struct libalias la, int direction, struct ip pip,
	struct sctp_nat_msg sm, struct sctp_nat_assoc *passoc)
	-//sctp_PktParser(int direction, struct mbuf ipak, int ip_hdr_len,struct sctp_nat_msg sm, struct sctp_nat_assoc *assoc)
	+// sctp_PktParser(int direction, struct mbuf *ipak, int ip_hdr_len,struct
	+// sctp_nat_msg sm, struct sctp_nat_assoc assoc)
	{
	struct sctphdr *sctp_hdr;
	struct sctp_chunkhdr *chunk_hdr;
	@@ -1062,15 +1203,16 @@
	// int mlen;

	// mlen = SCTP_HEADER_LEN(i_pak);
	- // mp = SCTP_HEADER_TO_CHAIN(i_pak); /* does nothing in bsd since header and chain not separate */
	+ // mp = SCTP_HEADER_TO_CHAIN(i_pak); /* does nothing in bsd since
	+ // header and chain not separate */

	/*
	* Note, that if the VTag is zero, it must be an INIT
	* Also, I am only interested in the content of INIT and ADDIP chunks
	*/

	- sm->msg = SN_SCTP_OTHER;/* Initialise to largest value*/
	- sm->chunk_length = 0; /* only care about length for key chunks */
	+ sm->msg = SN_SCTP_OTHER; /* Initialise to largest value*/
	+ sm->chunk_length = 0; /* only care about length for key chunks */
	// no mbuf stuff from Paolo yet so ...
	sm->ip_hdr = pip;
	/* remove ip header length from the bytes_left */
	@@ -1082,22 +1224,27 @@
	return (SN_PARSE_ERROR_IPSHL); /* packet not long enough*/
	}

	- sm->sctp_hdr = sctp_hdr = (struct sctphdr *) ip_next(pip);
	+ sm->sctp_hdr = sctp_hdr = (struct sctphdr *)ip_next(pip);
	bytes_left -= sizeof(struct sctphdr);

	- /* Check for valid ports (zero valued ports would find partially initialised associations */
	+ /* Check for valid ports (zero valued ports would find partially
	+ * initialised associations */
	if (sctp_hdr->src_port == 0 \|\| sctp_hdr->dest_port == 0)
	return (SN_PARSE_ERROR_PORT);

	/* Check length of first chunk */
	- if (bytes_left < SN_MIN_CHUNK_SIZE) /* malformed chunk - could cause endless loop*/
	- return (SN_PARSE_ERROR_CHHL); /* packet not long enough for this chunk */
	+ if (bytes_left <
	+ SN_MIN_CHUNK_SIZE) /* malformed chunk - could cause endless loop*/
	+ return (SN_PARSE_ERROR_CHHL); /* packet not long enough for this
	+ chunk */

	/* First chunk */
	chunk_hdr = SN_SCTP_FIRSTCHUNK(sctp_hdr);

	chunk_length = SCTP_SIZE32(ntohs(chunk_hdr->chunk_length));
	- if ((chunk_length < SN_MIN_CHUNK_SIZE) \|\| (chunk_length > bytes_left)) /* malformed chunk - could cause endless loop*/
	+ if ((chunk_length < SN_MIN_CHUNK_SIZE) \|\|
	+ (chunk_length >
	+ bytes_left)) /* malformed chunk - could cause endless loop*/
	return (SN_PARSE_ERROR_CHHL);

	if ((chunk_hdr->chunk_flags & SCTP_HAD_NO_TCB) &&
	@@ -1105,15 +1252,23 @@
	(chunk_hdr->chunk_type == SCTP_SHUTDOWN_COMPLETE))) {
	/* T-Bit set */
	if (direction == SN_TO_LOCAL)
	- *passoc = FindSctpGlobalT(la, pip->ip_src, sctp_hdr->v_tag, sctp_hdr->dest_port, sctp_hdr->src_port);
	+ *passoc = FindSctpGlobalT(la, pip->ip_src,
	+ sctp_hdr->v_tag, sctp_hdr->dest_port,
	+ sctp_hdr->src_port);
	else
	- *passoc = FindSctpLocalT(la, pip->ip_dst, sctp_hdr->v_tag, sctp_hdr->dest_port, sctp_hdr->src_port);
	+ *passoc = FindSctpLocalT(la, pip->ip_dst,
	+ sctp_hdr->v_tag, sctp_hdr->dest_port,
	+ sctp_hdr->src_port);
	} else {
	/* Proper v_tag settings */
	if (direction == SN_TO_LOCAL)
	- *passoc = FindSctpGlobal(la, pip->ip_src, sctp_hdr->v_tag, sctp_hdr->src_port, sctp_hdr->dest_port, &partial_match);
	+ *passoc = FindSctpGlobal(la, pip->ip_src,
	+ sctp_hdr->v_tag, sctp_hdr->src_port,
	+ sctp_hdr->dest_port, &partial_match);
	else
	- *passoc = FindSctpLocal(la, pip->ip_src, pip->ip_dst, sctp_hdr->v_tag, sctp_hdr->src_port, sctp_hdr->dest_port);
	+ *passoc = FindSctpLocal(la, pip->ip_src, pip->ip_dst,
	+ sctp_hdr->v_tag, sctp_hdr->src_port,
	+ sctp_hdr->dest_port);
	}

	chunk_count = 1;
	@@ -1121,21 +1276,33 @@
	while (IS_SCTP_CONTROL(chunk_hdr)) {
	switch (chunk_hdr->chunk_type) {
	case SCTP_INITIATION:
	- if (chunk_length < sizeof(struct sctp_init_chunk)) /* malformed chunk*/
	+ if (chunk_length <
	+ sizeof(struct sctp_init_chunk)) /* malformed chunk*/
	return (SN_PARSE_ERROR_CHHL);
	sm->msg = SN_SCTP_INIT;
	- sm->sctpchnk.Init = (struct sctp_init ) ((char ) chunk_hdr + sizeof(struct sctp_chunkhdr));
	+ sm->sctpchnk.Init =
	+ (struct sctp_init )((char )chunk_hdr +
	+ sizeof(struct sctp_chunkhdr));
	sm->chunk_length = chunk_length;
	/* if no existing association, create a new one */
	if (*passoc == NULL) {
	- if (sctp_hdr->v_tag == 0) { //Init requires vtag=0
	- passoc = (struct sctp_nat_assoc ) sn_malloc(sizeof(struct sctp_nat_assoc));
	- if (passoc == NULL) {/ out of resources */
	- return (SN_PARSE_ERROR_AS_MALLOC);
	+ if (sctp_hdr->v_tag ==
	+ 0) { // Init requires vtag=0
	+ passoc = (struct sctp_nat_assoc )
	+ sn_malloc(
	+ sizeof(struct sctp_nat_assoc));
	+ if (*passoc ==
	+ NULL) { /* out of resources */
	+ return (
	+ SN_PARSE_ERROR_AS_MALLOC);
	}
	- /* Initialize association - sn_malloc initializes memory to zeros */
	+ /* Initialize association - sn_malloc
	+ * initializes memory to zeros */
	(*passoc)->state = SN_ID;
	- LIST_INIT(&((passoc)->Gaddr)); / always initialise to avoid memory problems */
	+ LIST_INIT(&((*passoc)
	+ ->Gaddr)); /* always initialise
	+ to avoid memory
	+ problems */
	(*passoc)->TableRegister = SN_NULL_TBL;
	return (SN_PARSE_OK);
	}
	@@ -1143,63 +1310,132 @@
	}
	return (SN_PARSE_ERROR_LOOKUP);
	case SCTP_INITIATION_ACK:
	- if (chunk_length < sizeof(struct sctp_init_ack_chunk)) /* malformed chunk*/
	+ if (chunk_length <
	+ sizeof(struct sctp_init_ack_chunk)) /* malformed
	+ chunk*/
	return (SN_PARSE_ERROR_CHHL);
	sm->msg = SN_SCTP_INITACK;
	- sm->sctpchnk.InitAck = (struct sctp_init_ack ) ((char ) chunk_hdr + sizeof(struct sctp_chunkhdr));
	+ sm->sctpchnk.InitAck =
	+ (struct sctp_init_ack )((char )chunk_hdr +
	+ sizeof(struct sctp_chunkhdr));
	sm->chunk_length = chunk_length;
	- return ((*passoc == NULL) ? (SN_PARSE_ERROR_LOOKUP) : (SN_PARSE_OK));
	- case SCTP_ABORT_ASSOCIATION: /* access only minimum sized chunk */
	+ return ((*passoc == NULL) ? (SN_PARSE_ERROR_LOOKUP) :
	+ (SN_PARSE_OK));
	+ case SCTP_ABORT_ASSOCIATION: /* access only minimum sized chunk
	+ */
	sm->msg = SN_SCTP_ABORT;
	sm->chunk_length = chunk_length;
	- return ((*passoc == NULL) ? (SN_PARSE_ERROR_LOOKUP_ABORT) : (SN_PARSE_OK));
	+ return ((*passoc == NULL) ?
	+ (SN_PARSE_ERROR_LOOKUP_ABORT) :
	+ (SN_PARSE_OK));
	case SCTP_SHUTDOWN_ACK:
	- if (chunk_length < sizeof(struct sctp_shutdown_ack_chunk)) /* malformed chunk*/
	+ if (chunk_length <
	+ sizeof(struct sctp_shutdown_ack_chunk)) /* malformed
	+ chunk*/
	return (SN_PARSE_ERROR_CHHL);
	if (sm->msg > SN_SCTP_SHUTACK) {
	sm->msg = SN_SCTP_SHUTACK;
	sm->chunk_length = chunk_length;
	}
	break;
	- case SCTP_SHUTDOWN_COMPLETE: /* minimum sized chunk */
	+ case SCTP_SHUTDOWN_COMPLETE: /* minimum sized chunk */
	if (sm->msg > SN_SCTP_SHUTCOMP) {
	sm->msg = SN_SCTP_SHUTCOMP;
	sm->chunk_length = chunk_length;
	}
	- return ((*passoc == NULL) ? (SN_PARSE_ERROR_LOOKUP) : (SN_PARSE_OK));
	+ return ((*passoc == NULL) ? (SN_PARSE_ERROR_LOOKUP) :
	+ (SN_PARSE_OK));
	case SCTP_ASCONF:
	if (sm->msg > SN_SCTP_ASCONF) {
	- if (chunk_length < (sizeof(struct sctp_asconf_chunk) + sizeof(struct sctp_ipv4addr_param))) /* malformed chunk*/
	+ if (chunk_length <
	+ (sizeof(struct sctp_asconf_chunk) +
	+ sizeof(struct
	+ sctp_ipv4addr_param))) /* malformed
	+ chunk*/
	return (SN_PARSE_ERROR_CHHL);
	- //leave parameter searching to later, if required
	- param_hdr = (struct sctp_paramhdr ) ((char ) chunk_hdr + sizeof(struct sctp_asconf_chunk)); /compulsory IP parameter/
	- if (ntohs(param_hdr->param_type) == SCTP_IPV4_ADDRESS) {
	- if ((passoc == NULL) && (direction == SN_TO_LOCAL)) { / AddIP with no association */
	- /* try look up with the ASCONF packet's alternative address */
	- ipv4addr.s_addr = ((struct sctp_ipv4addr_param *) param_hdr)->addr;
	- *passoc = FindSctpGlobal(la, ipv4addr, sctp_hdr->v_tag, sctp_hdr->src_port, sctp_hdr->dest_port, &partial_match);
	+ // leave parameter searching to later, if
	+ // required
	+ param_hdr =
	+ (struct sctp_paramhdr )((char )chunk_hdr +
	+ sizeof(struct
	+ sctp_asconf_chunk)); /*compulsory IP
	+ parameter*/
	+ if (ntohs(param_hdr->param_type) ==
	+ SCTP_IPV4_ADDRESS) {
	+ if ((*passoc == NULL) &&
	+ (direction ==
	+ SN_TO_LOCAL)) { /* AddIP with no
	+ association
	+ */
	+ /* try look up with the ASCONF
	+ * packet's alternative address
	+ */
	+ ipv4addr.s_addr =
	+ ((struct sctp_ipv4addr_param
	+ *)param_hdr)
	+ ->addr;
	+ *passoc = FindSctpGlobal(la,
	+ ipv4addr, sctp_hdr->v_tag,
	+ sctp_hdr->src_port,
	+ sctp_hdr->dest_port,
	+ &partial_match);
	}
	- param_hdr = (struct sctp_paramhdr *)
	- ((char ) param_hdr + sizeof(struct sctp_ipv4addr_param)); /asconf's compulsory address parameter */
	- sm->chunk_length = chunk_length - sizeof(struct sctp_asconf_chunk) - sizeof(struct sctp_ipv4addr_param); /* rest of chunk */
	+ param_hdr = (struct sctp_paramhdr
	+ )((char )param_hdr +
	+ sizeof(struct
	+ sctp_ipv4addr_param)); /*asconf's
	+ compulsory
	+ address
	+ parameter
	+ */
	+ sm->chunk_length = chunk_length -
	+ sizeof(struct sctp_asconf_chunk) -
	+ sizeof(struct
	+ sctp_ipv4addr_param); /* rest of
	+ chunk
	+ */
	} else {
	- if (chunk_length < (sizeof(struct sctp_asconf_chunk) + sizeof(struct sctp_ipv6addr_param))) /* malformed chunk*/
	+ if (chunk_length <
	+ (sizeof(struct sctp_asconf_chunk) +
	+ sizeof(struct
	+ sctp_ipv6addr_param))) /* malformed
	+ chunk*/
	return (SN_PARSE_ERROR_CHHL);
	- param_hdr = (struct sctp_paramhdr *)
	- ((char ) param_hdr + sizeof(struct sctp_ipv6addr_param)); /asconf's compulsory address parameter */
	- sm->chunk_length = chunk_length - sizeof(struct sctp_asconf_chunk) - sizeof(struct sctp_ipv6addr_param); /* rest of chunk */
	+ param_hdr = (struct sctp_paramhdr
	+ )((char )param_hdr +
	+ sizeof(struct
	+ sctp_ipv6addr_param)); /*asconf's
	+ compulsory
	+ address
	+ parameter
	+ */
	+ sm->chunk_length = chunk_length -
	+ sizeof(struct sctp_asconf_chunk) -
	+ sizeof(struct
	+ sctp_ipv6addr_param); /* rest of
	+ chunk
	+ */
	}
	sm->msg = SN_SCTP_ASCONF;
	sm->sctpchnk.Asconf = param_hdr;

	- if (passoc == NULL) { / AddIP with no association */
	- passoc = (struct sctp_nat_assoc ) sn_malloc(sizeof(struct sctp_nat_assoc));
	- if (passoc == NULL) {/ out of resources */
	- return (SN_PARSE_ERROR_AS_MALLOC);
	+ if (*passoc ==
	+ NULL) { /* AddIP with no association */
	+ passoc = (struct sctp_nat_assoc )
	+ sn_malloc(
	+ sizeof(struct sctp_nat_assoc));
	+ if (*passoc ==
	+ NULL) { /* out of resources */
	+ return (
	+ SN_PARSE_ERROR_AS_MALLOC);
	}
	- /* Initialize association - sn_malloc initializes memory to zeros */
	+ /* Initialize association - sn_malloc
	+ * initializes memory to zeros */
	(*passoc)->state = SN_ID;
	- LIST_INIT(&((passoc)->Gaddr)); / always initialise to avoid memory problems */
	+ LIST_INIT(&((*passoc)
	+ ->Gaddr)); /* always initialise
	+ to avoid memory
	+ problems */
	(*passoc)->TableRegister = SN_NULL_TBL;
	return (SN_PARSE_OK);
	}
	@@ -1207,47 +1443,61 @@
	break;
	case SCTP_ASCONF_ACK:
	if (sm->msg > SN_SCTP_ASCONFACK) {
	- if (chunk_length < sizeof(struct sctp_asconf_ack_chunk)) /* malformed chunk*/
	+ if (chunk_length <
	+ sizeof(struct
	+ sctp_asconf_ack_chunk)) /* malformed
	+ chunk*/
	return (SN_PARSE_ERROR_CHHL);
	- //leave parameter searching to later, if required
	- param_hdr = (struct sctp_paramhdr ) ((char ) chunk_hdr
	- + sizeof(struct sctp_asconf_ack_chunk));
	+ // leave parameter searching to later, if
	+ // required
	+ param_hdr =
	+ (struct sctp_paramhdr )((char )chunk_hdr +
	+ sizeof(struct sctp_asconf_ack_chunk));
	sm->msg = SN_SCTP_ASCONFACK;
	sm->sctpchnk.Asconf = param_hdr;
	- sm->chunk_length = chunk_length - sizeof(struct sctp_asconf_ack_chunk);
	+ sm->chunk_length = chunk_length -
	+ sizeof(struct sctp_asconf_ack_chunk);
	}
	break;
	default:
	break; /* do nothing*/
	}

	- /* if no association is found exit - we need to find an Init or AddIP within sysctl_initialising_chunk_proc_limit */
	- if ((*passoc == NULL) && (chunk_count >= sysctl_initialising_chunk_proc_limit))
	+ /* if no association is found exit - we need to find an Init or
	+ * AddIP within sysctl_initialising_chunk_proc_limit */
	+ if ((*passoc == NULL) &&
	+ (chunk_count >= sysctl_initialising_chunk_proc_limit))
	return (SN_PARSE_ERROR_LOOKUP);

	/* finished with this chunk, on to the next chunk*/
	- bytes_left-= chunk_length;
	+ bytes_left -= chunk_length;

	/* Is this the end of the packet ? */
	if (bytes_left == 0)
	- return (*passoc == NULL) ? (SN_PARSE_ERROR_LOOKUP) : (SN_PARSE_OK);
	+ return (*passoc == NULL) ? (SN_PARSE_ERROR_LOOKUP) :
	+ (SN_PARSE_OK);

	- /* Are there enough bytes in packet to at least retrieve length of next chunk ? */
	+ /* Are there enough bytes in packet to at least retrieve length
	+ * of next chunk ? */
	if (bytes_left < SN_MIN_CHUNK_SIZE)
	return (SN_PARSE_ERROR_CHHL);

	chunk_hdr = SN_SCTP_NEXTCHUNK(chunk_hdr);

	- /* Is the chunk long enough to not cause endless look and are there enough bytes in packet to read the chunk ? */
	+ /* Is the chunk long enough to not cause endless look and are
	+ * there enough bytes in packet to read the chunk ? */
	chunk_length = SCTP_SIZE32(ntohs(chunk_hdr->chunk_length));
	- if ((chunk_length < SN_MIN_CHUNK_SIZE) \|\| (chunk_length > bytes_left))
	+ if ((chunk_length < SN_MIN_CHUNK_SIZE) \|\|
	+ (chunk_length > bytes_left))
	return (SN_PARSE_ERROR_CHHL);
	if (++chunk_count > sysctl_chunk_proc_limit)
	- return (SN_PARSE_OK); /* limit for processing chunks, take what we get */
	+ return (SN_PARSE_OK); /* limit for processing chunks,
	+ take what we get */
	}

	if (*passoc == NULL)
	- return (partial_match) ? (SN_PARSE_ERROR_PARTIALLOOKUP) : (SN_PARSE_ERROR_LOOKUP);
	+ return (partial_match) ? (SN_PARSE_ERROR_PARTIALLOOKUP) :
	+ (SN_PARSE_ERROR_LOOKUP);
	else
	return (SN_PARSE_OK);
	}
	@@ -1263,19 +1513,22 @@
	*
	* @param la Pointer to the relevant libalias instance
	* @param sm Pointer to sctp message information
	- * @param l_vtag Pointer to the local vtag in the association this SCTP Message belongs to
	- * @param g_vtag Pointer to the local vtag in the association this SCTP Message belongs to
	+ * @param l_vtag Pointer to the local vtag in the association this SCTP Message
	+ * belongs to
	+ * @param g_vtag Pointer to the local vtag in the association this SCTP Message
	+ * belongs to
	* @param direction SN_TO_LOCAL \| SN_TO_GLOBAL
	*
	* @return 1 - success \| 0 - fail
	*/
	static int
	-GetAsconfVtags(struct libalias la, struct sctp_nat_msg sm, uint32_t l_vtag, uint32_t g_vtag, int direction)
	+GetAsconfVtags(struct libalias la, struct sctp_nat_msg sm, uint32_t *l_vtag,
	+ uint32_t *g_vtag, int direction)
	{
	/* To be removed when information is in the sctp headers */
	#define SCTP_VTAG_PARAM 0xC007
	struct sctp_vtag_param {
	- struct sctp_paramhdr ph;/* type=SCTP_VTAG_PARAM */
	+ struct sctp_paramhdr ph; /* type=SCTP_VTAG_PARAM */
	uint32_t local_vtag;
	uint32_t remote_vtag;
	} __attribute__((packed));
	@@ -1291,13 +1544,15 @@
	param_size = SCTP_SIZE32(ntohs(param->param_length));
	bytes_left = sm->chunk_length;
	/* step through Asconf parameters */
	- while((bytes_left >= param_size) && (bytes_left >= SN_VTAG_PARAM_SIZE)) {
	+ while (
	+ (bytes_left >= param_size) && (bytes_left >= SN_VTAG_PARAM_SIZE)) {
	if (ntohs(param->param_type) == SCTP_VTAG_PARAM) {
	- vtag_param = (struct sctp_vtag_param *) param;
	+ vtag_param = (struct sctp_vtag_param *)param;
	switch (direction) {
	- /* The Internet draft is a little ambigious as to order of these vtags.
	- We think it is this way around. If we are wrong, the order will need
	- to be changed. */
	+ /* The Internet draft is a little ambigious as
	+ to order of these vtags. We think it is this
	+ way around. If we are wrong, the order will
	+ need to be changed. */
	case SN_TO_GLOBAL:
	*g_vtag = vtag_param->local_vtag;
	*l_vtag = vtag_param->remote_vtag;
	@@ -1318,8 +1573,10 @@
	param_size = SCTP_SIZE32(ntohs(param->param_length));
	if (++param_count > sysctl_param_proc_limit) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("Parameter parse limit exceeded (GetAsconfVtags)",
	- sm->sctp_hdr->v_tag, sysctl_param_proc_limit, direction));
	+ logsctperror(
	+ "Parameter parse limit exceeded (GetAsconfVtags)",
	+ sm->sctp_hdr->v_tag, sysctl_param_proc_limit,
	+ direction));
	return (0); /* not found limit exceeded*/
	}
	}
	@@ -1338,12 +1595,13 @@
	*
	*/
	static void
	-AddGlobalIPAddresses(struct sctp_nat_msg sm, struct sctp_nat_assoc assoc, int direction)
	+AddGlobalIPAddresses(struct sctp_nat_msg sm, struct sctp_nat_assoc assoc,
	+ int direction)
	{
	struct sctp_ipv4addr_param *ipv4_param;
	struct sctp_paramhdr *param = NULL;
	struct sctp_GlobalAddress *G_Addr;
	- struct in_addr g_addr = {0};
	+ struct in_addr g_addr = { 0 };
	int bytes_left = 0;
	int param_size;
	int param_count, addr_param_count = 0;
	@@ -1358,12 +1616,18 @@
	param_count = 1;
	switch (sm->msg) {
	case SN_SCTP_INIT:
	- bytes_left = sm->chunk_length - sizeof(struct sctp_init_chunk);
	- param = (struct sctp_paramhdr )((char )sm->sctpchnk.Init + sizeof(struct sctp_init));
	+ bytes_left = sm->chunk_length -
	+ sizeof(struct sctp_init_chunk);
	+ param =
	+ (struct sctp_paramhdr )((char )sm->sctpchnk.Init +
	+ sizeof(struct sctp_init));
	break;
	case SN_SCTP_INITACK:
	- bytes_left = sm->chunk_length - sizeof(struct sctp_init_ack_chunk);
	- param = (struct sctp_paramhdr )((char )sm->sctpchnk.InitAck + sizeof(struct sctp_init_ack));
	+ bytes_left = sm->chunk_length -
	+ sizeof(struct sctp_init_ack_chunk);
	+ param = (struct sctp_paramhdr )((char )sm->sctpchnk
	+ .InitAck +
	+ sizeof(struct sctp_init_ack));
	break;
	case SN_SCTP_ASCONF:
	bytes_left = sm->chunk_length;
	@@ -1374,65 +1638,88 @@
	if (bytes_left >= SN_MIN_PARAM_SIZE)
	param_size = SCTP_SIZE32(ntohs(param->param_length));
	else
	- param_size = bytes_left+1; /* force skip loop */
	-
	- if ((assoc->state == SN_ID) && ((sm->msg == SN_SCTP_INIT) \|\| (bytes_left < SN_MIN_PARAM_SIZE))) {/* add pkt address */
	- G_Addr = (struct sctp_GlobalAddress *) sn_malloc(sizeof(struct sctp_GlobalAddress));
	- if (G_Addr == NULL) {/* out of resources */
	+ param_size = bytes_left + 1; /* force skip loop */
	+
	+ if ((assoc->state == SN_ID) &&
	+ ((sm->msg == SN_SCTP_INIT) \|\|
	+ (bytes_left < SN_MIN_PARAM_SIZE))) { /* add pkt address */
	+ G_Addr = (struct sctp_GlobalAddress *)sn_malloc(
	+ sizeof(struct sctp_GlobalAddress));
	+ if (G_Addr == NULL) { /* out of resources */
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("AddGlobalIPAddress: No resources for adding global address - revert to no tracking",
	- sm->sctp_hdr->v_tag, 0, direction));
	- assoc->num_Gaddr = 0; /* don't track any more for this assoc*/
	- sysctl_track_global_addresses=0;
	+ logsctperror(
	+ "AddGlobalIPAddress: No resources for adding global address - revert to no tracking",
	+ sm->sctp_hdr->v_tag, 0, direction));
	+ assoc->num_Gaddr =
	+ 0; /* don't track any more for this assoc*/
	+ sysctl_track_global_addresses = 0;
	return;
	}
	G_Addr->g_addr = g_addr;
	if (!Add_Global_Address_to_List(assoc, G_Addr))
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("AddGlobalIPAddress: Address already in list",
	- sm->sctp_hdr->v_tag, assoc->num_Gaddr, direction));
	+ logsctperror(
	+ "AddGlobalIPAddress: Address already in list",
	+ sm->sctp_hdr->v_tag, assoc->num_Gaddr,
	+ direction));
	}

	/* step through parameters */
	- while((bytes_left >= param_size) && (bytes_left >= sizeof(struct sctp_ipv4addr_param))) {
	+ while ((bytes_left >= param_size) &&
	+ (bytes_left >= sizeof(struct sctp_ipv4addr_param))) {
	if (assoc->num_Gaddr >= sysctl_track_global_addresses) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("AddGlobalIPAddress: Maximum Number of addresses reached",
	- sm->sctp_hdr->v_tag, sysctl_track_global_addresses, direction));
	+ logsctperror(
	+ "AddGlobalIPAddress: Maximum Number of addresses reached",
	+ sm->sctp_hdr->v_tag,
	+ sysctl_track_global_addresses, direction));
	return;
	}
	switch (ntohs(param->param_type)) {
	case SCTP_ADD_IP_ADDRESS:
	- /* skip to address parameter - leave param_size so bytes left will be calculated properly*/
	- param = (struct sctp_paramhdr ) &((struct sctp_asconf_addrv4_param ) param)->addrp;
	+ /* skip to address parameter - leave param_size so bytes
	+ * left will be calculated properly*/
	+ param = (struct sctp_paramhdr *)&(
	+ (struct sctp_asconf_addrv4_param *)param)
	+ ->addrp;
	/* FALLTHROUGH */
	case SCTP_IPV4_ADDRESS:
	- ipv4_param = (struct sctp_ipv4addr_param *) param;
	+ ipv4_param = (struct sctp_ipv4addr_param *)param;
	/* add addresses to association */
	- G_Addr = (struct sctp_GlobalAddress *) sn_malloc(sizeof(struct sctp_GlobalAddress));
	- if (G_Addr == NULL) {/* out of resources */
	+ G_Addr = (struct sctp_GlobalAddress *)sn_malloc(
	+ sizeof(struct sctp_GlobalAddress));
	+ if (G_Addr == NULL) { /* out of resources */
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("AddGlobalIPAddress: No resources for adding global address - revert to no tracking",
	- sm->sctp_hdr->v_tag, 0, direction));
	- assoc->num_Gaddr = 0; /* don't track any more for this assoc*/
	- sysctl_track_global_addresses=0;
	+ logsctperror(
	+ "AddGlobalIPAddress: No resources for adding global address - revert to no tracking",
	+ sm->sctp_hdr->v_tag, 0, direction));
	+ assoc->num_Gaddr =
	+ 0; /* don't track any more for this assoc*/
	+ sysctl_track_global_addresses = 0;
	return;
	}
	/* add address */
	addr_param_count++;
	- if ((sm->msg == SN_SCTP_ASCONF) && (ipv4_param->addr == INADDR_ANY)) { /* use packet address */
	+ if ((sm->msg == SN_SCTP_ASCONF) &&
	+ (ipv4_param->addr ==
	+ INADDR_ANY)) { /* use packet address */
	G_Addr->g_addr = g_addr;
	if (!Add_Global_Address_to_List(assoc, G_Addr))
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("AddGlobalIPAddress: Address already in list",
	- sm->sctp_hdr->v_tag, assoc->num_Gaddr, direction));
	- return; /shouldn't be any other addresses if the zero address is given/
	+ logsctperror(
	+ "AddGlobalIPAddress: Address already in list",
	+ sm->sctp_hdr->v_tag,
	+ assoc->num_Gaddr, direction));
	+ return; /*shouldn't be any other addresses if
	+ the zero address is given*/
	} else {
	G_Addr->g_addr.s_addr = ipv4_param->addr;
	if (!Add_Global_Address_to_List(assoc, G_Addr))
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("AddGlobalIPAddress: Address already in list",
	- sm->sctp_hdr->v_tag, assoc->num_Gaddr, direction));
	+ logsctperror(
	+ "AddGlobalIPAddress: Address already in list",
	+ sm->sctp_hdr->v_tag,
	+ assoc->num_Gaddr, direction));
	}
	}

	@@ -1444,14 +1731,17 @@
	param_size = SCTP_SIZE32(ntohs(param->param_length));
	if (++param_count > sysctl_param_proc_limit) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("Parameter parse limit exceeded (AddGlobalIPAddress)",
	- sm->sctp_hdr->v_tag, sysctl_param_proc_limit, direction));
	+ logsctperror(
	+ "Parameter parse limit exceeded (AddGlobalIPAddress)",
	+ sm->sctp_hdr->v_tag, sysctl_param_proc_limit,
	+ direction));
	break; /* limit exceeded*/
	}
	}
	if (addr_param_count == 0) {
	SN_LOG(SN_LOG_DETAIL,
	- logsctperror("AddGlobalIPAddress: no address parameters to add",
	+ logsctperror(
	+ "AddGlobalIPAddress: no address parameters to add",
	sm->sctp_hdr->v_tag, assoc->num_Gaddr, direction));
	}
	}
	@@ -1470,18 +1760,21 @@
	* @return 1 - success \| 0 - fail
	*/
	static int
	-Add_Global_Address_to_List(struct sctp_nat_assoc assoc, struct sctp_GlobalAddress G_addr)
	+Add_Global_Address_to_List(struct sctp_nat_assoc *assoc,
	+ struct sctp_GlobalAddress *G_addr)
	{
	struct sctp_GlobalAddress iter_G_Addr = NULL, first_G_Addr = NULL;
	first_G_Addr = LIST_FIRST(&(assoc->Gaddr));
	if (first_G_Addr == NULL) {
	- LIST_INSERT_HEAD(&(assoc->Gaddr), G_addr, list_Gaddr); /* add new address to beginning of list*/
	+ LIST_INSERT_HEAD(&(assoc->Gaddr), G_addr,
	+ list_Gaddr); /* add new address to beginning of list*/
	} else {
	LIST_FOREACH(iter_G_Addr, &(assoc->Gaddr), list_Gaddr) {
	if (G_addr->g_addr.s_addr == iter_G_Addr->g_addr.s_addr)
	return (0); /* already exists, so don't add */
	}
	- LIST_INSERT_AFTER(first_G_Addr, G_addr, list_Gaddr); /* add address to end of list*/
	+ LIST_INSERT_AFTER(first_G_Addr, G_addr,
	+ list_Gaddr); /* add address to end of list*/
	}
	assoc->num_Gaddr++;
	return (1); /* success */
	@@ -1501,7 +1794,8 @@
	*
	*/
	static void
	-RmGlobalIPAddresses(struct sctp_nat_msg sm, struct sctp_nat_assoc assoc, int direction)
	+RmGlobalIPAddresses(struct sctp_nat_msg sm, struct sctp_nat_assoc assoc,
	+ int direction)
	{
	struct sctp_asconf_addrv4_param *asconf_ipv4_param;
	struct sctp_paramhdr *param;
	@@ -1517,42 +1811,73 @@
	param_size = SCTP_SIZE32(ntohs(param->param_length));
	} else {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("RmGlobalIPAddress: truncated packet - cannot remove IP addresses",
	- sm->sctp_hdr->v_tag, sysctl_track_global_addresses, direction));
	+ logsctperror(
	+ "RmGlobalIPAddress: truncated packet - cannot remove IP addresses",
	+ sm->sctp_hdr->v_tag, sysctl_track_global_addresses,
	+ direction));
	return;
	}

	/* step through Asconf parameters */
	- while((bytes_left >= param_size) && (bytes_left >= sizeof(struct sctp_ipv4addr_param))) {
	+ while ((bytes_left >= param_size) &&
	+ (bytes_left >= sizeof(struct sctp_ipv4addr_param))) {
	if (ntohs(param->param_type) == SCTP_DEL_IP_ADDRESS) {
	- asconf_ipv4_param = (struct sctp_asconf_addrv4_param *) param;
	- if (asconf_ipv4_param->addrp.addr == INADDR_ANY) { /* remove all bar pkt address */
	- LIST_FOREACH_SAFE(G_Addr, &(assoc->Gaddr), list_Gaddr, G_Addr_tmp) {
	- if (G_Addr->g_addr.s_addr != sm->ip_hdr->ip_src.s_addr) {
	- if (assoc->num_Gaddr > 1) { /* only delete if more than one */
	- LIST_REMOVE(G_Addr, list_Gaddr);
	+ asconf_ipv4_param = (struct sctp_asconf_addrv4_param *)
	+ param;
	+ if (asconf_ipv4_param->addrp.addr ==
	+ INADDR_ANY) { /* remove all bar pkt address */
	+ LIST_FOREACH_SAFE(G_Addr, &(assoc->Gaddr),
	+ list_Gaddr, G_Addr_tmp) {
	+ if (G_Addr->g_addr.s_addr !=
	+ sm->ip_hdr->ip_src.s_addr) {
	+ if (assoc->num_Gaddr >
	+ 1) { /* only delete if more
	+ than one */
	+ LIST_REMOVE(G_Addr,
	+ list_Gaddr);
	sn_free(G_Addr);
	assoc->num_Gaddr--;
	} else {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("RmGlobalIPAddress: Request to remove last IP address (didn't)",
	- sm->sctp_hdr->v_tag, assoc->num_Gaddr, direction));
	+ logsctperror(
	+ "RmGlobalIPAddress: Request to remove last IP address (didn't)",
	+ sm->sctp_hdr
	+ ->v_tag,
	+ assoc
	+ ->num_Gaddr,
	+ direction));
	}
	}
	}
	- return; /shouldn't be any other addresses if the zero address is given/
	+ return; /*shouldn't be any other addresses if
	+ the zero address is given*/
	} else {
	- LIST_FOREACH_SAFE(G_Addr, &(assoc->Gaddr), list_Gaddr, G_Addr_tmp) {
	- if (G_Addr->g_addr.s_addr == asconf_ipv4_param->addrp.addr) {
	- if (assoc->num_Gaddr > 1) { /* only delete if more than one */
	- LIST_REMOVE(G_Addr, list_Gaddr);
	+ LIST_FOREACH_SAFE(G_Addr, &(assoc->Gaddr),
	+ list_Gaddr, G_Addr_tmp) {
	+ if (G_Addr->g_addr.s_addr ==
	+ asconf_ipv4_param->addrp.addr) {
	+ if (assoc->num_Gaddr >
	+ 1) { /* only delete if more
	+ than one */
	+ LIST_REMOVE(G_Addr,
	+ list_Gaddr);
	sn_free(G_Addr);
	assoc->num_Gaddr--;
	- break; /* Since add only adds new addresses, there should be no double entries */
	+ break; /* Since add only
	+ adds new
	+ addresses,
	+ there should
	+ be no double
	+ entries */
	} else {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("RmGlobalIPAddress: Request to remove last IP address (didn't)",
	- sm->sctp_hdr->v_tag, assoc->num_Gaddr, direction));
	+ logsctperror(
	+ "RmGlobalIPAddress: Request to remove last IP address (didn't)",
	+ sm->sctp_hdr
	+ ->v_tag,
	+ assoc
	+ ->num_Gaddr,
	+ direction));
	}
	}
	}
	@@ -1563,8 +1888,10 @@
	return;
	else if (bytes_left < SN_MIN_PARAM_SIZE) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("RmGlobalIPAddress: truncated packet - may not have removed all IP addresses",
	- sm->sctp_hdr->v_tag, sysctl_track_global_addresses, direction));
	+ logsctperror(
	+ "RmGlobalIPAddress: truncated packet - may not have removed all IP addresses",
	+ sm->sctp_hdr->v_tag,
	+ sysctl_track_global_addresses, direction));
	return;
	}

	@@ -1572,8 +1899,10 @@
	param_size = SCTP_SIZE32(ntohs(param->param_length));
	if (++param_count > sysctl_param_proc_limit) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("Parameter parse limit exceeded (RmGlobalIPAddress)",
	- sm->sctp_hdr->v_tag, sysctl_param_proc_limit, direction));
	+ logsctperror(
	+ "Parameter parse limit exceeded (RmGlobalIPAddress)",
	+ sm->sctp_hdr->v_tag, sysctl_param_proc_limit,
	+ direction));
	return; /* limit exceeded*/
	}
	}
	@@ -1619,9 +1948,10 @@
	if (bytes_left < param_size)
	return (0); /* not found */
	/* step through Asconf parameters */
	- while(bytes_left >= SN_ASCONFACK_PARAM_SIZE) {
	+ while (bytes_left >= SN_ASCONFACK_PARAM_SIZE) {
	if (ntohs(param->param_type) == SCTP_SUCCESS_REPORT)
	- return (1); /* success - but can't match correlation IDs - should only be one */
	+ return (1); /* success - but can't match correlation IDs
	+ - should only be one */
	/* check others just in case */
	bytes_left -= param_size;
	if (bytes_left >= SN_MIN_PARAM_SIZE)
	@@ -1635,8 +1965,10 @@

	if (++param_count > sysctl_param_proc_limit) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("Parameter parse limit exceeded (IsASCONFack)",
	- sm->sctp_hdr->v_tag, sysctl_param_proc_limit, direction));
	+ logsctperror(
	+ "Parameter parse limit exceeded (IsASCONFack)",
	+ sm->sctp_hdr->v_tag, sysctl_param_proc_limit,
	+ direction));
	return (0); /* not found limit exceeded*/
	}
	}
	@@ -1671,7 +2003,7 @@
	if (bytes_left < param_size)
	return (0); /* not found */
	/* step through Asconf parameters */
	- while(bytes_left >= SN_ASCONFACK_PARAM_SIZE) {
	+ while (bytes_left >= SN_ASCONFACK_PARAM_SIZE) {
	if (ntohs(param->param_type) == SCTP_ADD_IP_ADDRESS)
	return (SCTP_ADD_IP_ADDRESS);
	else if (ntohs(param->param_type) == SCTP_DEL_IP_ADDRESS)
	@@ -1689,12 +2021,14 @@

	if (++param_count > sysctl_param_proc_limit) {
	SN_LOG(SN_LOG_EVENT,
	- logsctperror("Parameter parse limit exceeded IsADDorDEL)",
	- sm->sctp_hdr->v_tag, sysctl_param_proc_limit, direction));
	+ logsctperror(
	+ "Parameter parse limit exceeded IsADDorDEL)",
	+ sm->sctp_hdr->v_tag, sysctl_param_proc_limit,
	+ direction));
	return (0); /* not found limit exceeded*/
	}
	}
	- return (0); /Neither found /
	+ return (0); /Neither found /
	}

	/* ----------------------------------------------------------------------
	@@ -1721,10 +2055,12 @@
	* @param sm Pointer to sctp message information
	* @param assoc Pointer to the association this SCTP Message belongs to
	*
	- * @return SN_DROP_PKT \| SN_NAT_PKT \| SN_REPLY_ABORT \| SN_REPLY_ERROR \| SN_PROCESSING_ERROR
	+ * @return SN_DROP_PKT \| SN_NAT_PKT \| SN_REPLY_ABORT \| SN_REPLY_ERROR \|
	+ * SN_PROCESSING_ERROR
	*/
	static int
	-ProcessSctpMsg(struct libalias la, int direction, struct sctp_nat_msg sm, struct sctp_nat_assoc *assoc)
	+ProcessSctpMsg(struct libalias la, int direction, struct sctp_nat_msg sm,
	+ struct sctp_nat_assoc *assoc)
	{
	int rtnval;

	@@ -1732,16 +2068,16 @@
	case SN_ID: /* Idle */
	rtnval = ID_process(la, direction, assoc, sm);
	if (rtnval != SN_NAT_PKT) {
	- assoc->state = SN_RM;/* Mark for removal*/
	+ assoc->state = SN_RM; /* Mark for removal*/
	}
	return (rtnval);
	case SN_INi: /* Initialising - Init */
	return (INi_process(la, direction, assoc, sm));
	case SN_INa: /* Initialising - AddIP */
	return (INa_process(la, direction, assoc, sm));
	- case SN_UP: /* Association UP */
	+ case SN_UP: /* Association UP */
	return (UP_process(la, direction, assoc, sm));
	- case SN_CL: /* Association Closing */
	+ case SN_CL: /* Association Closing */
	return (CL_process(la, direction, assoc, sm));
	}
	return (SN_PROCESSING_ERROR);
	@@ -1762,17 +2098,23 @@
	* @return SN_NAT_PKT \| SN_DROP_PKT \| SN_REPLY_ABORT \| SN_REPLY_ERROR
	*/
	static int
	-ID_process(struct libalias la, int direction, struct sctp_nat_assoc assoc, struct sctp_nat_msg *sm)
	+ID_process(struct libalias la, int direction, struct sctp_nat_assoc assoc,
	+ struct sctp_nat_msg *sm)
	{
	switch (sm->msg) {
	- case SN_SCTP_ASCONF: /* a packet containing an ASCONF chunk with ADDIP */
	- if (!sysctl_accept_global_ootb_addip && (direction == SN_TO_LOCAL))
	+ case SN_SCTP_ASCONF: /* a packet containing an ASCONF chunk with ADDIP
	+ */
	+ if (!sysctl_accept_global_ootb_addip &&
	+ (direction == SN_TO_LOCAL))
	return (SN_DROP_PKT);
	- /* if this Asconf packet does not contain the Vtag parameters it is of no use in Idle state */
	- if (!GetAsconfVtags(la, sm, &(assoc->l_vtag), &(assoc->g_vtag), direction))
	+ /* if this Asconf packet does not contain the Vtag parameters it
	+ * is of no use in Idle state */
	+ if (!GetAsconfVtags(la, sm, &(assoc->l_vtag), &(assoc->g_vtag),
	+ direction))
	return (SN_DROP_PKT);
	/* FALLTHROUGH */
	- case SN_SCTP_INIT: /* a packet containing an INIT chunk or an ASCONF AddIP */
	+ case SN_SCTP_INIT: /* a packet containing an INIT chunk or an ASCONF
	+ AddIP */
	if (sysctl_track_global_addresses)
	AddGlobalIPAddresses(sm, assoc, direction);
	switch (direction) {
	@@ -1783,14 +2125,19 @@
	assoc->g_port = sm->sctp_hdr->dest_port;
	if (sm->msg == SN_SCTP_INIT)
	assoc->g_vtag = sm->sctpchnk.Init->initiate_tag;
	- if (AddSctpAssocGlobal(la, assoc)) /* DB clash: need to add dst address */
	- return ((sm->msg == SN_SCTP_INIT) ? SN_REPLY_ABORT : SN_REPLY_ERROR);
	+ if (AddSctpAssocGlobal(la,
	+ assoc)) /* DB clash: need to add dst address */
	+ return ((sm->msg == SN_SCTP_INIT) ?
	+ SN_REPLY_ABORT :
	+ SN_REPLY_ERROR);
	if (sm->msg == SN_SCTP_ASCONF) {
	- if (AddSctpAssocLocal(la, assoc, sm->ip_hdr->ip_dst)) /* DB clash */
	+ if (AddSctpAssocLocal(la, assoc,
	+ sm->ip_hdr->ip_dst)) /* DB clash */
	return (SN_REPLY_ERROR);
	- assoc->TableRegister \|= SN_WAIT_TOLOCAL; /* wait for tolocal ack */
	+ assoc->TableRegister \|=
	+ SN_WAIT_TOLOCAL; /* wait for tolocal ack */
	}
	- break;
	+ break;
	case SN_TO_LOCAL:
	assoc->l_addr = FindSctpRedirectAddress(la, sm);
	assoc->a_addr = sm->ip_hdr->ip_dst;
	@@ -1798,23 +2145,31 @@
	assoc->g_port = sm->sctp_hdr->src_port;
	if (sm->msg == SN_SCTP_INIT)
	assoc->l_vtag = sm->sctpchnk.Init->initiate_tag;
	- if (AddSctpAssocLocal(la, assoc, sm->ip_hdr->ip_src)) /* DB clash */
	- return ((sm->msg == SN_SCTP_INIT) ? SN_REPLY_ABORT : SN_REPLY_ERROR);
	+ if (AddSctpAssocLocal(la, assoc,
	+ sm->ip_hdr->ip_src)) /* DB clash */
	+ return ((sm->msg == SN_SCTP_INIT) ?
	+ SN_REPLY_ABORT :
	+ SN_REPLY_ERROR);
	if (sm->msg == SN_SCTP_ASCONF) {
	- if (AddSctpAssocGlobal(la, assoc)) /* DB clash: need to add src address */
	+ if (AddSctpAssocGlobal(la,
	+ assoc)) /* DB clash: need to add src
	+ address */
	return (SN_REPLY_ERROR);
	- assoc->TableRegister \|= SN_WAIT_TOGLOBAL; /* wait for toglobal ack */
	+ assoc->TableRegister \|=
	+ SN_WAIT_TOGLOBAL; /* wait for toglobal ack
	+ */
	}
	break;
	}
	assoc->state = (sm->msg == SN_SCTP_INIT) ? SN_INi : SN_INa;
	assoc->exp = SN_I_T(la);
	- sctp_AddTimeOut(la,assoc);
	+ sctp_AddTimeOut(la, assoc);
	return (SN_NAT_PKT);
	default: /* Any other type of SCTP message is not valid in Idle */
	return (SN_DROP_PKT);
	}
	- return (SN_DROP_PKT);/* shouldn't get here very bad: log, drop and hope for the best */
	+ return (SN_DROP_PKT); /* shouldn't get here very bad: log, drop and hope
	+ for the best */
	}

	/** @ingroup state_machine
	@@ -1831,42 +2186,47 @@
	* @return SN_NAT_PKT \| SN_DROP_PKT \| SN_REPLY_ABORT
	*/
	static int
	-INi_process(struct libalias la, int direction, struct sctp_nat_assoc assoc, struct sctp_nat_msg *sm)
	+INi_process(struct libalias la, int direction, struct sctp_nat_assoc assoc,
	+ struct sctp_nat_msg *sm)
	{
	switch (sm->msg) {
	- case SN_SCTP_INIT: /* a packet containing a retransmitted INIT chunk */
	+ case SN_SCTP_INIT: /* a packet containing a retransmitted INIT chunk */
	sctp_ResetTimeOut(la, assoc, SN_I_T(la));
	return (SN_NAT_PKT);
	- case SN_SCTP_INITACK: /* a packet containing an INIT-ACK chunk */
	+ case SN_SCTP_INITACK: /* a packet containing an INIT-ACK chunk */
	switch (direction) {
	case SN_TO_LOCAL:
	- if (assoc->num_Gaddr) /If tracking global addresses for this association /
	+ if (assoc->num_Gaddr) /*If tracking global addresses for
	+ this association */
	AddGlobalIPAddresses(sm, assoc, direction);
	assoc->l_vtag = sm->sctpchnk.Init->initiate_tag;
	- if (AddSctpAssocLocal(la, assoc, sm->ip_hdr->ip_src)) { /* DB clash */
	- assoc->state = SN_RM;/* Mark for removal*/
	+ if (AddSctpAssocLocal(la, assoc,
	+ sm->ip_hdr->ip_src)) { /* DB clash */
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_SEND_ABORT);
	}
	break;
	case SN_TO_GLOBAL:
	- assoc->l_addr = sm->ip_hdr->ip_src; // Only if not set in Init! *
	+ assoc->l_addr =
	+ sm->ip_hdr->ip_src; // Only if not set in Init! *
	assoc->g_vtag = sm->sctpchnk.Init->initiate_tag;
	if (AddSctpAssocGlobal(la, assoc)) { /* DB clash */
	- assoc->state = SN_RM;/* Mark for removal*/
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_SEND_ABORT);
	}
	break;
	}
	- assoc->state = SN_UP;/* association established for NAT */
	- sctp_ResetTimeOut(la,assoc, SN_U_T(la));
	+ assoc->state = SN_UP; /* association established for NAT */
	+ sctp_ResetTimeOut(la, assoc, SN_U_T(la));
	return (SN_NAT_PKT);
	- case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	- assoc->state = SN_RM;/* Mark for removal*/
	+ case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_NAT_PKT);
	default:
	return (SN_DROP_PKT);
	}
	- return (SN_DROP_PKT);/* shouldn't get here very bad: log, drop and hope for the best */
	+ return (SN_DROP_PKT); /* shouldn't get here very bad: log, drop and hope
	+ for the best */
	}

	/** @ingroup state_machine
	@@ -1883,38 +2243,45 @@
	* @return SN_NAT_PKT \| SN_DROP_PKT
	*/
	static int
	-INa_process(struct libalias la, int direction,struct sctp_nat_assoc assoc, struct sctp_nat_msg *sm)
	+INa_process(struct libalias la, int direction, struct sctp_nat_assoc assoc,
	+ struct sctp_nat_msg *sm)
	{
	switch (sm->msg) {
	- case SN_SCTP_ASCONF: /* a packet containing an ASCONF chunk*/
	- sctp_ResetTimeOut(la,assoc, SN_I_T(la));
	+ case SN_SCTP_ASCONF: /* a packet containing an ASCONF chunk*/
	+ sctp_ResetTimeOut(la, assoc, SN_I_T(la));
	return (SN_NAT_PKT);
	- case SN_SCTP_ASCONFACK: /* a packet containing an ASCONF chunk with a ADDIP-ACK */
	+ case SN_SCTP_ASCONFACK: /* a packet containing an ASCONF chunk with a
	+ ADDIP-ACK */
	switch (direction) {
	case SN_TO_LOCAL:
	- if (!(assoc->TableRegister & SN_WAIT_TOLOCAL)) /* wrong direction */
	+ if (!(assoc->TableRegister &
	+ SN_WAIT_TOLOCAL)) /* wrong direction */
	return (SN_DROP_PKT);
	break;
	case SN_TO_GLOBAL:
	- if (!(assoc->TableRegister & SN_WAIT_TOGLOBAL)) /* wrong direction */
	+ if (!(assoc->TableRegister &
	+ SN_WAIT_TOGLOBAL)) /* wrong direction */
	return (SN_DROP_PKT);
	}
	- if (IsASCONFack(la,sm,direction)) {
	- assoc->TableRegister &= SN_BOTH_TBL; /* remove wait flags */
	- assoc->state = SN_UP; /* association established for NAT */
	- sctp_ResetTimeOut(la,assoc, SN_U_T(la));
	+ if (IsASCONFack(la, sm, direction)) {
	+ assoc->TableRegister &=
	+ SN_BOTH_TBL; /* remove wait flags */
	+ assoc->state =
	+ SN_UP; /* association established for NAT */
	+ sctp_ResetTimeOut(la, assoc, SN_U_T(la));
	return (SN_NAT_PKT);
	} else {
	- assoc->state = SN_RM;/* Mark for removal*/
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_NAT_PKT);
	}
	- case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	- assoc->state = SN_RM;/* Mark for removal*/
	+ case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_NAT_PKT);
	default:
	return (SN_DROP_PKT);
	}
	- return (SN_DROP_PKT);/* shouldn't get here very bad: log, drop and hope for the best */
	+ return (SN_DROP_PKT); /* shouldn't get here very bad: log, drop and hope
	+ for the best */
	}

	/** @ingroup state_machine
	@@ -1931,19 +2298,22 @@
	* @return SN_NAT_PKT \| SN_DROP_PKT
	*/
	static int
	-UP_process(struct libalias la, int direction, struct sctp_nat_assoc assoc, struct sctp_nat_msg *sm)
	+UP_process(struct libalias la, int direction, struct sctp_nat_assoc assoc,
	+ struct sctp_nat_msg *sm)
	{
	switch (sm->msg) {
	- case SN_SCTP_SHUTACK: /* a packet containing a SHUTDOWN-ACK chunk */
	+ case SN_SCTP_SHUTACK: /* a packet containing a SHUTDOWN-ACK chunk */
	assoc->state = SN_CL;
	- sctp_ResetTimeOut(la,assoc, SN_C_T(la));
	+ sctp_ResetTimeOut(la, assoc, SN_C_T(la));
	return (SN_NAT_PKT);
	- case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	- assoc->state = SN_RM;/* Mark for removal*/
	+ case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_NAT_PKT);
	- case SN_SCTP_ASCONF: /* a packet containing an ASCONF chunk*/
	- if ((direction == SN_TO_LOCAL) && assoc->num_Gaddr) /If tracking global addresses for this association & from global side /
	- switch (IsADDorDEL(la,sm,direction)) {
	+ case SN_SCTP_ASCONF: /* a packet containing an ASCONF chunk*/
	+ if ((direction == SN_TO_LOCAL) &&
	+ assoc->num_Gaddr) /*If tracking global addresses for this
	+ association & from global side */
	+ switch (IsADDorDEL(la, sm, direction)) {
	case SCTP_ADD_IP_ADDRESS:
	AddGlobalIPAddresses(sm, assoc, direction);
	break;
	@@ -1953,10 +2323,11 @@
	}
	/* FALLTHROUGH */
	default:
	- sctp_ResetTimeOut(la,assoc, SN_U_T(la));
	- return (SN_NAT_PKT); /* forward packet */
	+ sctp_ResetTimeOut(la, assoc, SN_U_T(la));
	+ return (SN_NAT_PKT); /* forward packet */
	}
	- return (SN_DROP_PKT);/* shouldn't get here very bad: log, drop and hope for the best */
	+ return (SN_DROP_PKT); /* shouldn't get here very bad: log, drop and hope
	+ for the best */
	}

	/** @ingroup state_machine
	@@ -1975,27 +2346,32 @@
	* @return SN_NAT_PKT \| SN_DROP_PKT
	*/
	static int
	-CL_process(struct libalias la, int direction,struct sctp_nat_assoc assoc, struct sctp_nat_msg *sm)
	+CL_process(struct libalias la, int direction, struct sctp_nat_assoc assoc,
	+ struct sctp_nat_msg *sm)
	{
	switch (sm->msg) {
	- case SN_SCTP_SHUTCOMP: /* a packet containing a SHUTDOWN-COMPLETE chunk */
	- assoc->state = SN_CL; /* Stay in Close state until timeout */
	+ case SN_SCTP_SHUTCOMP: /* a packet containing a SHUTDOWN-COMPLETE chunk
	+ */
	+ assoc->state = SN_CL; /* Stay in Close state until timeout */
	if (sysctl_holddown_timer > 0)
	- sctp_ResetTimeOut(la, assoc, SN_X_T(la));/* allow to stay open for Tbit packets*/
	+ sctp_ResetTimeOut(la, assoc,
	+ SN_X_T(
	+ la)); /* allow to stay open for Tbit packets*/
	else
	- assoc->state = SN_RM;/* Mark for removal*/
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_NAT_PKT);
	- case SN_SCTP_SHUTACK: /* a packet containing a SHUTDOWN-ACK chunk */
	- assoc->state = SN_CL; /* Stay in Close state until timeout */
	+ case SN_SCTP_SHUTACK: /* a packet containing a SHUTDOWN-ACK chunk */
	+ assoc->state = SN_CL; /* Stay in Close state until timeout */
	sctp_ResetTimeOut(la, assoc, SN_C_T(la));
	return (SN_NAT_PKT);
	- case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	- assoc->state = SN_RM;/* Mark for removal*/
	+ case SN_SCTP_ABORT: /* a packet containing an ABORT chunk */
	+ assoc->state = SN_RM; /* Mark for removal*/
	return (SN_NAT_PKT);
	default:
	return (SN_DROP_PKT);
	}
	- return (SN_DROP_PKT);/* shouldn't get here very bad: log, drop and hope for the best */
	+ return (SN_DROP_PKT); /* shouldn't get here very bad: log, drop and hope
	+ for the best */
	}

	/* ----------------------------------------------------------------------
	@@ -2023,7 +2399,8 @@
	* @return pointer to association or NULL
	*/
	static struct sctp_nat_assoc *
	-FindSctpLocal(struct libalias *la, struct in_addr l_addr, struct in_addr g_addr, uint32_t l_vtag, uint16_t l_port, uint16_t g_port)
	+FindSctpLocal(struct libalias *la, struct in_addr l_addr, struct in_addr g_addr,
	+ uint32_t l_vtag, uint16_t l_port, uint16_t g_port)
	{
	u_int i;
	struct sctp_nat_assoc *assoc = NULL;
	@@ -2032,11 +2409,15 @@
	if (l_vtag != 0) { /* an init packet, vtag==0 */
	i = SN_TABLE_HASH(l_vtag, l_port, la->sctpNatTableSize);
	LIST_FOREACH(assoc, &la->sctpTableLocal[i], list_L) {
	- if ((assoc->l_vtag == l_vtag) && (assoc->l_port == l_port) && (assoc->g_port == g_port)\
	- && (assoc->l_addr.s_addr == l_addr.s_addr)) {
	+ if ((assoc->l_vtag == l_vtag) &&
	+ (assoc->l_port == l_port) &&
	+ (assoc->g_port == g_port) &&
	+ (assoc->l_addr.s_addr == l_addr.s_addr)) {
	if (assoc->num_Gaddr) {
	- LIST_FOREACH(G_Addr, &(assoc->Gaddr), list_Gaddr) {
	- if (G_Addr->g_addr.s_addr == g_addr.s_addr)
	+ LIST_FOREACH(G_Addr, &(assoc->Gaddr),
	+ list_Gaddr) {
	+ if (G_Addr->g_addr.s_addr ==
	+ g_addr.s_addr)
	return (assoc);
	}
	} else {
	@@ -2068,13 +2449,22 @@
	struct sctp_GlobalAddress *G_AddrC = NULL;

	if (Cassoc->g_vtag != 0) { /* an init packet, vtag==0 */
	- i = SN_TABLE_HASH(Cassoc->g_vtag, Cassoc->g_port, la->sctpNatTableSize);
	+ i = SN_TABLE_HASH(Cassoc->g_vtag, Cassoc->g_port,
	+ la->sctpNatTableSize);
	LIST_FOREACH(assoc, &la->sctpTableGlobal[i], list_G) {
	- if ((assoc->g_vtag == Cassoc->g_vtag) && (assoc->g_port == Cassoc->g_port) && (assoc->l_port == Cassoc->l_port)) {
	+ if ((assoc->g_vtag == Cassoc->g_vtag) &&
	+ (assoc->g_port == Cassoc->g_port) &&
	+ (assoc->l_port == Cassoc->l_port)) {
	if (assoc->num_Gaddr) {
	- LIST_FOREACH(G_AddrC, &(Cassoc->Gaddr), list_Gaddr) {
	- LIST_FOREACH(G_Addr, &(assoc->Gaddr), list_Gaddr) {
	- if (G_Addr->g_addr.s_addr == G_AddrC->g_addr.s_addr)
	+ LIST_FOREACH(G_AddrC, &(Cassoc->Gaddr),
	+ list_Gaddr) {
	+ LIST_FOREACH(G_Addr,
	+ &(assoc->Gaddr),
	+ list_Gaddr) {
	+ if (G_Addr->g_addr
	+ .s_addr ==
	+ G_AddrC->g_addr
	+ .s_addr)
	return (assoc);
	}
	}
	@@ -2107,7 +2497,8 @@
	* @return pointer to association or NULL
	*/
	static struct sctp_nat_assoc *
	-FindSctpGlobal(struct libalias la, struct in_addr g_addr, uint32_t g_vtag, uint16_t g_port, uint16_t l_port, int partial_match)
	+FindSctpGlobal(struct libalias *la, struct in_addr g_addr, uint32_t g_vtag,
	+ uint16_t g_port, uint16_t l_port, int *partial_match)
	{
	u_int i;
	struct sctp_nat_assoc *assoc = NULL;
	@@ -2117,11 +2508,15 @@
	if (g_vtag != 0) { /* an init packet, vtag==0 */
	i = SN_TABLE_HASH(g_vtag, g_port, la->sctpNatTableSize);
	LIST_FOREACH(assoc, &la->sctpTableGlobal[i], list_G) {
	- if ((assoc->g_vtag == g_vtag) && (assoc->g_port == g_port) && (assoc->l_port == l_port)) {
	+ if ((assoc->g_vtag == g_vtag) &&
	+ (assoc->g_port == g_port) &&
	+ (assoc->l_port == l_port)) {
	*partial_match = 1;
	if (assoc->num_Gaddr) {
	- LIST_FOREACH(G_Addr, &(assoc->Gaddr), list_Gaddr) {
	- if (G_Addr->g_addr.s_addr == g_addr.s_addr)
	+ LIST_FOREACH(G_Addr, &(assoc->Gaddr),
	+ list_Gaddr) {
	+ if (G_Addr->g_addr.s_addr ==
	+ g_addr.s_addr)
	return (assoc);
	}
	} else {
	@@ -2134,7 +2529,8 @@
	}

	/** @ingroup Hash
	- * @brief Find the SCTP association for a T-Flag message (given the global port and local vtag)
	+ * @brief Find the SCTP association for a T-Flag message (given the global port
	+ * and local vtag)
	*
	* Searches the local look-up table for a unique association entry matching the
	* provided global port and local vtag information
	@@ -2148,7 +2544,8 @@
	* @return pointer to association or NULL
	*/
	static struct sctp_nat_assoc *
	-FindSctpLocalT(struct libalias *la, struct in_addr g_addr, uint32_t l_vtag, uint16_t g_port, uint16_t l_port)
	+FindSctpLocalT(struct libalias *la, struct in_addr g_addr, uint32_t l_vtag,
	+ uint16_t g_port, uint16_t l_port)
	{
	u_int i;
	struct sctp_nat_assoc assoc = NULL, lastmatch = NULL;
	@@ -2158,11 +2555,17 @@
	if (l_vtag != 0) { /* an init packet, vtag==0 */
	i = SN_TABLE_HASH(l_vtag, g_port, la->sctpNatTableSize);
	LIST_FOREACH(assoc, &la->sctpTableGlobal[i], list_G) {
	- if ((assoc->g_vtag == l_vtag) && (assoc->g_port == g_port) && (assoc->l_port == l_port)) {
	+ if ((assoc->g_vtag == l_vtag) &&
	+ (assoc->g_port == g_port) &&
	+ (assoc->l_port == l_port)) {
	if (assoc->num_Gaddr) {
	- LIST_FOREACH(G_Addr, &(assoc->Gaddr), list_Gaddr) {
	- if (G_Addr->g_addr.s_addr == g_addr.s_addr)
	- return (assoc); /* full match */
	+ LIST_FOREACH(G_Addr, &(assoc->Gaddr),
	+ list_Gaddr) {
	+ if (G_Addr->g_addr.s_addr ==
	+ g_addr.s_addr)
	+ return (
	+ assoc); /* full
	+ match */
	}
	} else {
	if (++cnt > 1)
	@@ -2172,12 +2575,14 @@
	}
	}
	}
	- /* If there is more than one match we do not know which local address to send to */
	+ /* If there is more than one match we do not know which local address to
	+ * send to */
	return (cnt ? lastmatch : NULL);
	}

	/** @ingroup Hash
	- * @brief Find the SCTP association for a T-Flag message (given the local port and global vtag)
	+ * @brief Find the SCTP association for a T-Flag message (given the local port
	+ * and global vtag)
	*
	* Searches the global look-up table for a unique association entry matching the
	* provided local port and global vtag information
	@@ -2191,7 +2596,8 @@
	* @return pointer to association or NULL
	*/
	static struct sctp_nat_assoc *
	-FindSctpGlobalT(struct libalias *la, struct in_addr g_addr, uint32_t g_vtag, uint16_t l_port, uint16_t g_port)
	+FindSctpGlobalT(struct libalias *la, struct in_addr g_addr, uint32_t g_vtag,
	+ uint16_t l_port, uint16_t g_port)
	{
	u_int i;
	struct sctp_nat_assoc *assoc = NULL;
	@@ -2200,10 +2606,14 @@
	if (g_vtag != 0) { /* an init packet, vtag==0 */
	i = SN_TABLE_HASH(g_vtag, l_port, la->sctpNatTableSize);
	LIST_FOREACH(assoc, &la->sctpTableLocal[i], list_L) {
	- if ((assoc->l_vtag == g_vtag) && (assoc->l_port == l_port) && (assoc->g_port == g_port)) {
	+ if ((assoc->l_vtag == g_vtag) &&
	+ (assoc->l_port == l_port) &&
	+ (assoc->g_port == g_port)) {
	if (assoc->num_Gaddr) {
	- LIST_FOREACH(G_Addr, &(assoc->Gaddr), list_Gaddr) {
	- if (G_Addr->g_addr.s_addr == g_addr.s_addr)
	+ LIST_FOREACH(G_Addr, &(assoc->Gaddr),
	+ list_Gaddr) {
	+ if (G_Addr->g_addr.s_addr ==
	+ g_addr.s_addr)
	return (assoc);
	}
	} else {
	@@ -2232,23 +2642,26 @@
	* @return SN_ADD_OK \| SN_ADD_CLASH
	*/
	static int
	-AddSctpAssocLocal(struct libalias la, struct sctp_nat_assoc assoc, struct in_addr g_addr)
	+AddSctpAssocLocal(struct libalias la, struct sctp_nat_assoc assoc,
	+ struct in_addr g_addr)
	{
	struct sctp_nat_assoc *found;

	LIBALIAS_LOCK_ASSERT(la);
	- found = FindSctpLocal(la, assoc->l_addr, g_addr, assoc->l_vtag, assoc->l_port, assoc->g_port);
	+ found = FindSctpLocal(la, assoc->l_addr, g_addr, assoc->l_vtag,
	+ assoc->l_port, assoc->g_port);
	/*
	* Note that if a different global address initiated this Init,
	* ie it wasn't resent as presumed:
	- * - the local receiver if receiving it for the first time will establish
	- * an association with the new global host
	- * - if receiving an init from a different global address after sending a
	- * lost initack it will send an initack to the new global host, the first
	- * association attempt will then be blocked if retried.
	+ * - the local receiver if receiving it for the first time will
	+ * establish an association with the new global host
	+ * - if receiving an init from a different global address after sending
	+ * a lost initack it will send an initack to the new global host, the
	+ * first association attempt will then be blocked if retried.
	*/
	if (found != NULL) {
	- if ((found->TableRegister == SN_LOCAL_TBL) && (found->g_port == assoc->g_port)) { /* resent message */
	+ if ((found->TableRegister == SN_LOCAL_TBL) &&
	+ (found->g_port == assoc->g_port)) { /* resent message */
	RmSctpAssoc(la, found);
	sctp_RmTimeOut(la, found);
	freeGlobalAddressList(found);
	@@ -2257,10 +2670,11 @@
	return (SN_ADD_CLASH);
	}

	- LIST_INSERT_HEAD(&la->sctpTableLocal[SN_TABLE_HASH(assoc->l_vtag, assoc->l_port, la->sctpNatTableSize)],
	+ LIST_INSERT_HEAD(&la->sctpTableLocal[SN_TABLE_HASH(assoc->l_vtag,
	+ assoc->l_port, la->sctpNatTableSize)],
	assoc, list_L);
	assoc->TableRegister \|= SN_LOCAL_TBL;
	- la->sctpLinkCount++; //increment link count
	+ la->sctpLinkCount++; // increment link count

	if (assoc->TableRegister == SN_BOTH_TBL) {
	/* libalias log -- controlled by libalias */
	@@ -2307,10 +2721,11 @@
	return (SN_ADD_CLASH);
	}

	- LIST_INSERT_HEAD(&la->sctpTableGlobal[SN_TABLE_HASH(assoc->g_vtag, assoc->g_port, la->sctpNatTableSize)],
	+ LIST_INSERT_HEAD(&la->sctpTableGlobal[SN_TABLE_HASH(assoc->g_vtag,
	+ assoc->g_port, la->sctpNatTableSize)],
	assoc, list_G);
	assoc->TableRegister \|= SN_GLOBAL_TBL;
	- la->sctpLinkCount++; //increment link count
	+ la->sctpLinkCount++; // increment link count

	if (assoc->TableRegister == SN_BOTH_TBL) {
	/* libalias log -- controlled by libalias */
	@@ -2344,7 +2759,8 @@
	if (assoc == NULL) {
	/* very bad, log and die*/
	SN_LOG(SN_LOG_LOW,
	- logsctperror("ERROR: alias_sctp:RmSctpAssoc(NULL)\n", 0, 0, SN_TO_NODIR));
	+ logsctperror("ERROR: alias_sctp:RmSctpAssoc(NULL)\n", 0, 0,
	+ SN_TO_NODIR));
	return;
	}
	/* log if association is fully up and now closing */
	@@ -2354,13 +2770,13 @@
	LIBALIAS_LOCK_ASSERT(la);
	if (assoc->TableRegister & SN_LOCAL_TBL) {
	assoc->TableRegister ^= SN_LOCAL_TBL;
	- la->sctpLinkCount--; //decrement link count
	+ la->sctpLinkCount--; // decrement link count
	LIST_REMOVE(assoc, list_L);
	}

	if (assoc->TableRegister & SN_GLOBAL_TBL) {
	assoc->TableRegister ^= SN_GLOBAL_TBL;
	- la->sctpLinkCount--; //decrement link count
	+ la->sctpLinkCount--; // decrement link count
	LIST_REMOVE(assoc, list_G);
	}
	// sn_free(assoc); //Don't remove now, remove if needed later
	@@ -2378,9 +2794,10 @@
	*
	* @param assoc
	*/
	-static void freeGlobalAddressList(struct sctp_nat_assoc *assoc)
	+static void
	+freeGlobalAddressList(struct sctp_nat_assoc *assoc)
	{
	- struct sctp_GlobalAddress gaddr1=NULL,gaddr2=NULL;
	+ struct sctp_GlobalAddress gaddr1 = NULL, gaddr2 = NULL;
	/free global address list/
	gaddr1 = LIST_FIRST(&(assoc->Gaddr));
	while (gaddr1 != NULL) {
	@@ -2421,7 +2838,8 @@
	{
	int add_loc;
	LIBALIAS_LOCK_ASSERT(la);
	- add_loc = assoc->exp - la->sctpNatTimer.loc_time + la->sctpNatTimer.cur_loc;
	+ add_loc = assoc->exp - la->sctpNatTimer.loc_time +
	+ la->sctpNatTimer.cur_loc;
	if (add_loc >= SN_TIMER_QUEUE_SIZE)
	add_loc -= SN_TIMER_QUEUE_SIZE;
	LIST_INSERT_HEAD(&la->sctpNatTimer.TimerQ[add_loc], assoc, timer_Q);
	@@ -2441,7 +2859,7 @@
	sctp_RmTimeOut(struct libalias la, struct sctp_nat_assoc assoc)
	{
	LIBALIAS_LOCK_ASSERT(la);
	- LIST_REMOVE(assoc, timer_Q);/* Note this is O(1) */
	+ LIST_REMOVE(assoc, timer_Q); /* Note this is O(1) */
	}

	/** @ingroup Timer
	@@ -2489,18 +2907,24 @@
	struct sctp_nat_assoc *assoc;

	LIBALIAS_LOCK_ASSERT(la);
	- while(LibAliasTime >= la->sctpNatTimer.loc_time) {
	- while (!LIST_EMPTY(&la->sctpNatTimer.TimerQ[la->sctpNatTimer.cur_loc])) {
	- assoc = LIST_FIRST(&la->sctpNatTimer.TimerQ[la->sctpNatTimer.cur_loc]);
	- //SLIST_REMOVE_HEAD(&la->sctpNatTimer.TimerQ[la->sctpNatTimer.cur_loc], timer_Q);
	+ while (LibAliasTime >= la->sctpNatTimer.loc_time) {
	+ while (!LIST_EMPTY(
	+ &la->sctpNatTimer.TimerQ[la->sctpNatTimer.cur_loc])) {
	+ assoc = LIST_FIRST(
	+ &la->sctpNatTimer.TimerQ[la->sctpNatTimer.cur_loc]);
	+ // SLIST_REMOVE_HEAD(&la->sctpNatTimer.TimerQ[la->sctpNatTimer.cur_loc],
	+ // timer_Q);
	LIST_REMOVE(assoc, timer_Q);
	if (LibAliasTime >= assoc->exp) { /* state expired */
	- SN_LOG(((assoc->state == SN_CL) ? (SN_LOG_DEBUG) : (SN_LOG_INFO)),
	- logsctperror("Timer Expired", assoc->g_vtag, assoc->state, SN_TO_NODIR));
	+ SN_LOG(((assoc->state == SN_CL) ?
	+ (SN_LOG_DEBUG) :
	+ (SN_LOG_INFO)),
	+ logsctperror("Timer Expired", assoc->g_vtag,
	+ assoc->state, SN_TO_NODIR));
	RmSctpAssoc(la, assoc);
	freeGlobalAddressList(assoc);
	sn_free(assoc);
	- } else {/* state not expired, reschedule timer*/
	+ } else { /* state not expired, reschedule timer*/
	sctp_AddTimeOut(la, assoc);
	}
	}
	@@ -2605,7 +3029,8 @@
	* @param assoc pointer to sctp association
	* @param s Character that indicates the state of processing for this packet
	*/
	-static void logsctpassoc(struct sctp_nat_assoc assoc, char s)
	+static void
	+logsctpassoc(struct sctp_nat_assoc assoc, char s)
	{
	struct sctp_GlobalAddress *G_Addr = NULL;
	char *sp;
	@@ -2634,11 +3059,11 @@
	sp = "*ERROR*";
	break;
	}
	- SctpAliasLog("%sAssoc: %s exp=%u la=%s lv=%u lp=%u gv=%u gp=%u tbl=%d\n",
	- s, sp, assoc->exp, inet_ntoa_r(assoc->l_addr, addrbuf),
	- ntohl(assoc->l_vtag), ntohs(assoc->l_port),
	- ntohl(assoc->g_vtag), ntohs(assoc->g_port),
	- assoc->TableRegister);
	+ SctpAliasLog(
	+ "%sAssoc: %s exp=%u la=%s lv=%u lp=%u gv=%u gp=%u tbl=%d\n", s, sp,
	+ assoc->exp, inet_ntoa_r(assoc->l_addr, addrbuf),
	+ ntohl(assoc->l_vtag), ntohs(assoc->l_port), ntohl(assoc->g_vtag),
	+ ntohs(assoc->g_port), assoc->TableRegister);
	/* list global addresses */
	LIST_FOREACH(G_Addr, &(assoc->Gaddr), list_Gaddr) {
	SctpAliasLog("\t\tga=%s\n",
	@@ -2651,7 +3076,8 @@
	*
	* @param la Pointer to the relevant libalias instance
	*/
	-static void logSctpGlobal(struct libalias *la)
	+static void
	+logSctpGlobal(struct libalias *la)
	{
	u_int i;
	struct sctp_nat_assoc *assoc = NULL;
	@@ -2669,7 +3095,8 @@
	*
	* @param la Pointer to the relevant libalias instance
	*/
	-static void logSctpLocal(struct libalias *la)
	+static void
	+logSctpLocal(struct libalias *la)
	{
	u_int i;
	struct sctp_nat_assoc *assoc = NULL;
	@@ -2687,7 +3114,8 @@
	*
	* @param la Pointer to the relevant libalias instance
	*/
	-static void logTimerQ(struct libalias *la)
	+static void
	+logTimerQ(struct libalias *la)
	{
	static char buf[50];
	u_int i;
	@@ -2696,8 +3124,8 @@
	SctpAliasLog("t->\n");
	for (i = 0; i < SN_TIMER_QUEUE_SIZE; i++) {
	LIST_FOREACH(assoc, &la->sctpNatTimer.TimerQ[i], timer_Q) {
	- snprintf(buf, 50, " l=%u ",i);
	- //SctpAliasLog(la->logDesc," l=%d ",i);
	+ snprintf(buf, 50, " l=%u ", i);
	+ // SctpAliasLog(la->logDesc," l=%d ",i);
	logsctpassoc(assoc, buf);
	}
	}
	Index: sys/netinet/libalias/alias_skinny.c
	===================================================================
	--- sys/netinet/libalias/alias_skinny.c
	+++ sys/netinet/libalias/alias_skinny.c
	@@ -40,8 +40,8 @@
	#include <unistd.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/tcp.h>

	@@ -53,16 +53,17 @@
	#include "alias_mod.h"
	#endif

	-static void
	-AliasHandleSkinny(struct libalias , struct ip , struct alias_link *);
	+static void AliasHandleSkinny(struct libalias , struct ip ,
	+ struct alias_link *);

	static int
	fingerprint(struct libalias la, struct alias_data ah)
	{
	if (ah->dport == NULL \|\| ah->sport == NULL \|\| ah->lnk == NULL)
	return (-1);
	- if (la->skinnyPort != 0 && (ntohs(*ah->sport) == la->skinnyPort \|\|
	- ntohs(*ah->dport) == la->skinnyPort))
	+ if (la->skinnyPort != 0 &&
	+ (ntohs(*ah->sport) == la->skinnyPort \|\|
	+ ntohs(*ah->dport) == la->skinnyPort))
	return (0);
	return (-1);
	}
	@@ -74,16 +75,12 @@
	return (0);
	}

	-struct proto_handler handlers[] = {
	- {
	- .pri = 110,
	- .dir = IN\|OUT,
	- .proto = TCP,
	- .fingerprint = &fingerprint,
	- .protohandler = &protohandler
	- },
	- { EOH }
	-};
	+struct proto_handler handlers[] = { { .pri = 110,
	+ .dir = IN \| OUT,
	+ .proto = TCP,
	+ .fingerprint = &fingerprint,
	+ .protohandler = &protohandler },
	+ { EOH } };

	static int
	mod_handler(module_t mod, int type, void *data)
	@@ -108,9 +105,7 @@
	#ifdef _KERNEL
	static
	#endif
	-moduledata_t alias_mod = {
	- "alias_skinny", mod_handler, NULL
	-};
	+ moduledata_t alias_mod = { "alias_skinny", mod_handler, NULL };

	#ifdef _KERNEL
	DECLARE_MODULE(alias_skinny, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
	@@ -144,69 +139,65 @@
	*
	* Skinny is a Cisco-proprietary protocol and is a trademark of Cisco Systems,
	* Inc. All rights reserved.
	-*/
	+ */

	/* #define LIBALIAS_DEBUG 1 */

	/* Message types that need translating */
	-#define REG_MSG 0x00000001
	-#define IP_PORT_MSG 0x00000002
	-#define OPNRCVCH_ACK 0x00000022
	-#define START_MEDIATX 0x0000008a
	+#define REG_MSG 0x00000001
	+#define IP_PORT_MSG 0x00000002
	+#define OPNRCVCH_ACK 0x00000022
	+#define START_MEDIATX 0x0000008a

	struct skinny_header {
	- u_int32_t len;
	- u_int32_t reserved;
	- u_int32_t msgId;
	+ u_int32_t len;
	+ u_int32_t reserved;
	+ u_int32_t msgId;
	};

	struct RegisterMessage {
	- u_int32_t msgId;
	- char devName [16];
	- u_int32_t uid;
	- u_int32_t instance;
	- u_int32_t ipAddr;
	- u_char devType;
	- u_int32_t maxStreams;
	+ u_int32_t msgId;
	+ char devName[16];
	+ u_int32_t uid;
	+ u_int32_t instance;
	+ u_int32_t ipAddr;
	+ u_char devType;
	+ u_int32_t maxStreams;
	};

	struct IpPortMessage {
	- u_int32_t msgId;
	- u_int32_t stationIpPort; /* Note: Skinny uses 32-bit port
	- * numbers */
	+ u_int32_t msgId;
	+ u_int32_t stationIpPort; /* Note: Skinny uses 32-bit port
	+ * numbers */
	};

	struct OpenReceiveChannelAck {
	- u_int32_t msgId;
	- u_int32_t status;
	- u_int32_t ipAddr;
	- u_int32_t port;
	- u_int32_t passThruPartyID;
	+ u_int32_t msgId;
	+ u_int32_t status;
	+ u_int32_t ipAddr;
	+ u_int32_t port;
	+ u_int32_t passThruPartyID;
	};

	struct StartMediaTransmission {
	- u_int32_t msgId;
	- u_int32_t conferenceID;
	- u_int32_t passThruPartyID;
	- u_int32_t remoteIpAddr;
	- u_int32_t remotePort;
	- u_int32_t MSPacket;
	- u_int32_t payloadCap;
	- u_int32_t precedence;
	- u_int32_t silenceSuppression;
	- u_short maxFramesPerPacket;
	- u_int32_t G723BitRate;
	+ u_int32_t msgId;
	+ u_int32_t conferenceID;
	+ u_int32_t passThruPartyID;
	+ u_int32_t remoteIpAddr;
	+ u_int32_t remotePort;
	+ u_int32_t MSPacket;
	+ u_int32_t payloadCap;
	+ u_int32_t precedence;
	+ u_int32_t silenceSuppression;
	+ u_short maxFramesPerPacket;
	+ u_int32_t G723BitRate;
	};

	-typedef enum {
	- ClientToServer = 0,
	- ServerToClient = 1
	-} ConvDirection;
	+typedef enum { ClientToServer = 0, ServerToClient = 1 } ConvDirection;

	static int
	alias_skinny_reg_msg(struct RegisterMessage reg_msg, struct ip pip,
	- struct tcphdr tc, struct alias_link lnk,
	- ConvDirection direction)
	+ struct tcphdr tc, struct alias_link lnk, ConvDirection direction)
	{
	(void)direction;

	@@ -224,9 +215,8 @@

	static int
	alias_skinny_startmedia(struct StartMediaTransmission *start_media,
	- struct ip pip, struct tcphdr tc,
	- struct alias_link *lnk, u_int32_t localIpAddr,
	- ConvDirection direction)
	+ struct ip pip, struct tcphdr tc, struct alias_link *lnk,
	+ u_int32_t localIpAddr, ConvDirection direction)
	{
	struct in_addr dst __unused, src __unused;

	@@ -248,8 +238,7 @@

	static int
	alias_skinny_port_msg(struct IpPortMessage port_msg, struct ip pip,
	- struct tcphdr tc, struct alias_link lnk,
	- ConvDirection direction)
	+ struct tcphdr tc, struct alias_link lnk, ConvDirection direction)
	{
	(void)direction;

	@@ -265,9 +254,9 @@
	}

	static int
	-alias_skinny_opnrcvch_ack(struct libalias la, struct OpenReceiveChannelAck opnrcvch_ack,
	- struct ip pip, struct tcphdr tc,
	- struct alias_link lnk, u_int32_t localIpAddr,
	+alias_skinny_opnrcvch_ack(struct libalias *la,
	+ struct OpenReceiveChannelAck opnrcvch_ack, struct ip pip,
	+ struct tcphdr tc, struct alias_link lnk, u_int32_t *localIpAddr,
	ConvDirection direction)
	{
	struct in_addr null_addr;
	@@ -280,8 +269,7 @@

	null_addr.s_addr = INADDR_ANY;
	(void)FindUdpTcpOut(la, pip->ip_src, null_addr,
	- htons((u_short) opnrcvch_ack->port), 0,
	- IPPROTO_UDP, 1, &opnrcv_lnk);
	+ htons((u_short)opnrcvch_ack->port), 0, IPPROTO_UDP, 1, &opnrcv_lnk);
	opnrcvch_ack->ipAddr = (u_int32_t)GetAliasAddress(opnrcv_lnk).s_addr;
	opnrcvch_ack->port = (u_int32_t)ntohs(GetAliasPort(opnrcv_lnk));

	@@ -383,7 +371,8 @@
	"PacketAlias/Skinny: Received ipport message\n");
	#endif
	port_mesg = (struct IpPortMessage *)&sd->msgId;
	- alias_skinny_port_msg(port_mesg, pip, tc, lnk, direction);
	+ alias_skinny_port_msg(port_mesg, pip, tc, lnk,
	+ direction);
	break;
	}
	case OPNRCVCH_ACK: {
	@@ -400,8 +389,10 @@
	fprintf(stderr,
	"PacketAlias/Skinny: Received open rcv channel msg\n");
	#endif
	- opnrcvchn_ack = (struct OpenReceiveChannelAck *)&sd->msgId;
	- alias_skinny_opnrcvch_ack(la, opnrcvchn_ack, pip, tc, lnk, &lip, direction);
	+ opnrcvchn_ack =
	+ (struct OpenReceiveChannelAck *)&sd->msgId;
	+ alias_skinny_opnrcvch_ack(la, opnrcvchn_ack, pip, tc,
	+ lnk, &lip, direction);
	break;
	}
	case START_MEDIATX: {
	@@ -428,8 +419,10 @@
	fprintf(stderr,
	"PacketAlias/Skinny: Received start media trans msg\n");
	#endif
	- startmedia_tx = (struct StartMediaTransmission *)&sd->msgId;
	- alias_skinny_startmedia(startmedia_tx, pip, tc, lnk, lip, direction);
	+ startmedia_tx =
	+ (struct StartMediaTransmission *)&sd->msgId;
	+ alias_skinny_startmedia(startmedia_tx, pip, tc, lnk,
	+ lip, direction);
	break;
	}
	default:
	Index: sys/netinet/libalias/alias_smedia.c
	===================================================================
	--- sys/netinet/libalias/alias_smedia.c
	+++ sys/netinet/libalias/alias_smedia.c
	@@ -104,14 +104,15 @@
	#include <sys/kernel.h>
	#include <sys/module.h>
	#else
	-#include <errno.h>
	#include <sys/types.h>
	+
	+#include <errno.h>
	#include <stdio.h>
	#include <string.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/tcp.h>

	@@ -126,11 +127,10 @@

	#define RTSP_CONTROL_PORT_NUMBER_1 554
	#define RTSP_CONTROL_PORT_NUMBER_2 7070
	-#define TFTP_PORT_NUMBER 69
	+#define TFTP_PORT_NUMBER 69

	-static void
	-AliasHandleRtspOut(struct libalias , struct ip , struct alias_link *,
	- int maxpacketsize);
	+static void AliasHandleRtspOut(struct libalias , struct ip ,
	+ struct alias_link *, int maxpacketsize);
	static int
	fingerprint(struct libalias la, struct alias_data ah)
	{
	@@ -140,10 +140,10 @@
	if (ah->dport == NULL \|\| ah->sport == NULL \|\| ah->lnk == NULL \|\|
	ah->maxpktsize == 0)
	return (-1);
	- if (ntohs(*ah->dport) == RTSP_CONTROL_PORT_NUMBER_1
	- \|\| ntohs(*ah->sport) == RTSP_CONTROL_PORT_NUMBER_1
	- \|\| ntohs(*ah->dport) == RTSP_CONTROL_PORT_NUMBER_2
	- \|\| ntohs(*ah->sport) == RTSP_CONTROL_PORT_NUMBER_2)
	+ if (ntohs(*ah->dport) == RTSP_CONTROL_PORT_NUMBER_1 \|\|
	+ ntohs(*ah->sport) == RTSP_CONTROL_PORT_NUMBER_1 \|\|
	+ ntohs(*ah->dport) == RTSP_CONTROL_PORT_NUMBER_2 \|\|
	+ ntohs(*ah->sport) == RTSP_CONTROL_PORT_NUMBER_2)
	return (0);
	return (-1);
	}
	@@ -152,22 +152,19 @@
	protohandler(struct libalias la, struct ip pip, struct alias_data *ah)
	{
	if (ntohs(*ah->dport) == TFTP_PORT_NUMBER)
	- FindRtspOut(la, pip->ip_src, pip->ip_dst,
	- ah->sport, ah->aport, IPPROTO_UDP);
	- else AliasHandleRtspOut(la, pip, ah->lnk, ah->maxpktsize);
	+ FindRtspOut(la, pip->ip_src, pip->ip_dst, *ah->sport,
	+ *ah->aport, IPPROTO_UDP);
	+ else
	+ AliasHandleRtspOut(la, pip, ah->lnk, ah->maxpktsize);
	return (0);
	}

	-struct proto_handler handlers[] = {
	- {
	- .pri = 100,
	- .dir = OUT,
	- .proto = TCP\|UDP,
	- .fingerprint = &fingerprint,
	- .protohandler = &protohandler
	- },
	- { EOH }
	-};
	+struct proto_handler handlers[] = { { .pri = 100,
	+ .dir = OUT,
	+ .proto = TCP \| UDP,
	+ .fingerprint = &fingerprint,
	+ .protohandler = &protohandler },
	+ { EOH } };

	static int
	mod_handler(module_t mod, int type, void *data)
	@@ -192,9 +189,7 @@
	#ifdef _KERNEL
	static
	#endif
	-moduledata_t alias_mod = {
	- "alias_smedia", mod_handler, NULL
	-};
	+ moduledata_t alias_mod = { "alias_smedia", mod_handler, NULL };

	#ifdef _KERNEL
	DECLARE_MODULE(alias_smedia, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND);
	@@ -202,11 +197,11 @@
	MODULE_DEPEND(alias_smedia, libalias, 1, 1, 1);
	#endif

	-#define RTSP_CONTROL_PORT_NUMBER_1 554
	-#define RTSP_CONTROL_PORT_NUMBER_2 7070
	-#define RTSP_PORT_GROUP 2
	+#define RTSP_CONTROL_PORT_NUMBER_1 554
	+#define RTSP_CONTROL_PORT_NUMBER_2 7070
	+#define RTSP_PORT_GROUP 2

	-#define ISDIGIT(a) (((a) >= '0') && ((a) <= '9'))
	+#define ISDIGIT(a) (((a) >= '0') && ((a) <= '9'))

	static int
	search_string(char data, int dlen, const char search_str)
	@@ -228,10 +223,8 @@
	}

	static int
	-alias_rtsp_out(struct libalias la, struct ip pip,
	- struct alias_link *lnk,
	- char *data,
	- const char *port_str)
	+alias_rtsp_out(struct libalias la, struct ip pip, struct alias_link *lnk,
	+ char data, const char port_str)
	{
	int hlen, tlen, dlen;
	struct tcphdr *tc;
	@@ -308,25 +301,35 @@
	* need
	*/
	null_addr.s_addr = 0;
	- if (0 == (salias = FindNewPortGroup(la, null_addr,
	- FindAliasAddress(la, pip->ip_src),
	- sport, 0,
	- RTSP_PORT_GROUP,
	- IPPROTO_UDP, 1))) {
	+ if (0 ==
	+ (salias = FindNewPortGroup(la,
	+ null_addr,
	+ FindAliasAddress(la,
	+ pip->ip_src),
	+ sport, 0, RTSP_PORT_GROUP,
	+ IPPROTO_UDP, 1))) {
	#ifdef LIBALIAS_DEBUG
	fprintf(stderr,
	"PacketAlias/RTSP: Cannot find contiguous RTSP data ports\n");
	#endif
	} else {
	base_alias = ntohs(salias);
	- for (j = 0; j < RTSP_PORT_GROUP; j++) {
	+ for (j = 0; j < RTSP_PORT_GROUP;
	+ j++) {
	/*
	* Establish link
	* to port found in
	* RTSP packet
	*/
	- rtsp_lnk = FindRtspOut(la, GetOriginalAddress(lnk), null_addr,
	- htons(base_port + j), htons(base_alias + j),
	+ rtsp_lnk = FindRtspOut(
	+ la,
	+ GetOriginalAddress(
	+ lnk),
	+ null_addr,
	+ htons(
	+ base_port + j),
	+ htons(
	+ base_alias + j),
	IPPROTO_UDP);
	if (rtsp_lnk != NULL) {
	#ifndef NO_FW_PUNCH
	@@ -335,7 +338,8 @@
	* hole in
	* firewall
	*/
	- PunchFWHole(rtsp_lnk);
	+ PunchFWHole(
	+ rtsp_lnk);
	#endif
	} else {
	#ifdef LIBALIAS_DEBUG
	@@ -346,14 +350,16 @@
	}
	}
	}
	- ealias = htons(base_alias + (RTSP_PORT_GROUP - 1));
	+ ealias = htons(
	+ base_alias + (RTSP_PORT_GROUP - 1));
	}
	if (salias && rtsp_lnk) {
	pkt_updated = 1;

	/* Copy into IP packet */
	sprintf(stemp, "%d", ntohs(salias));
	- memcpy(port_newdata, stemp, strlen(stemp));
	+ memcpy(port_newdata, stemp,
	+ strlen(stemp));
	port_newdata += strlen(stemp);

	if (eport != 0) {
	@@ -361,8 +367,10 @@
	port_newdata++;

	/* Copy into IP packet */
	- sprintf(stemp, "%d", ntohs(ealias));
	- memcpy(port_newdata, stemp, strlen(stemp));
	+ sprintf(stemp, "%d",
	+ ntohs(ealias));
	+ memcpy(port_newdata, stemp,
	+ strlen(stemp));
	port_newdata += strlen(stemp);
	}
	*port_newdata = ';';
	@@ -412,10 +420,8 @@
	/* Support the protocol used by early versions of RealPlayer */

	static int
	-alias_pna_out(struct libalias la, struct ip pip,
	- struct alias_link *lnk,
	- char *data,
	- int dlen)
	+alias_pna_out(struct libalias la, struct ip pip, struct alias_link *lnk,
	+ char *data, int dlen)
	{
	struct alias_link *pna_links;
	u_short msg_id, msg_len;
	@@ -435,8 +441,9 @@

	if ((ntohs(msg_id) == 1) \|\| (ntohs(msg_id) == 7)) {
	memcpy(&port, work, 2);
	- (void)FindUdpTcpOut(la, pip->ip_src, GetDestAddress(lnk),
	- port, 0, IPPROTO_UDP, 1, &pna_links);
	+ (void)FindUdpTcpOut(la, pip->ip_src,
	+ GetDestAddress(lnk), port, 0, IPPROTO_UDP, 1,
	+ &pna_links);
	if (pna_links != NULL) {
	#ifndef NO_FW_PUNCH
	/* Punch hole in firewall */
	@@ -462,7 +469,8 @@
	}

	static void
	-AliasHandleRtspOut(struct libalias la, struct ip pip, struct alias_link *lnk, int maxpacketsize)
	+AliasHandleRtspOut(struct libalias la, struct ip pip, struct alias_link *lnk,
	+ int maxpacketsize)
	{
	int hlen, tlen, dlen;
	struct tcphdr *tc;
	@@ -502,21 +510,23 @@

	if (dlen >= (int)strlen(str200)) {
	for (parseOk = 0, i = 0;
	- i <= dlen - (int)strlen(str200);
	- i++)
	- if (memcmp(&data[i], str200, strlen(str200)) == 0) {
	+ i <= dlen - (int)strlen(str200); i++)
	+ if (memcmp(&data[i], str200, strlen(str200)) ==
	+ 0) {
	parseOk = 1;
	break;
	}

	if (parseOk) {
	- i += strlen(str200); /* skip string found */
	- while (data[i] == ' ') /* skip blank(s) */
	+ i += strlen(str200); /* skip string found */
	+ while (data[i] == ' ') /* skip blank(s) */
	i++;

	if ((dlen - i) >= (int)strlen(okstr))
	- if (memcmp(&data[i], okstr, strlen(okstr)) == 0)
	- alias_rtsp_out(la, pip, lnk, data, server_port_str);
	+ if (memcmp(&data[i], okstr,
	+ strlen(okstr)) == 0)
	+ alias_rtsp_out(la, pip, lnk,
	+ data, server_port_str);
	}
	}
	}
	Index: sys/netinet/libalias/alias_util.c
	===================================================================
	--- sys/netinet/libalias/alias_util.c
	+++ sys/netinet/libalias/alias_util.c
	@@ -47,11 +47,12 @@
	#include <sys/proc.h>
	#else
	#include <sys/types.h>
	+
	#include <stdio.h>
	#endif

	-#include <netinet/in_systm.h>
	#include <netinet/in.h>
	+#include <netinet/in_systm.h>
	#include <netinet/ip.h>
	#include <netinet/tcp.h>

	@@ -70,8 +71,7 @@
	* purposes);
	*/
	u_short
	-LibAliasInternetChecksum(struct libalias la __unused, u_short ptr,
	- int nbytes)
	+LibAliasInternetChecksum(struct libalias la __unused, u_short ptr, int nbytes)
	{
	int sum, oddbyte;

	@@ -97,9 +97,8 @@
	u_short
	IpChecksum(struct ip *pip)
	{
	- return (LibAliasInternetChecksum(NULL, (u_short *)pip,
	- (pip->ip_hl << 2)));
	-
	+ return (
	+ LibAliasInternetChecksum(NULL, (u_short *)pip, (pip->ip_hl << 2)));
	}

	u_short
	@@ -116,7 +115,7 @@
	tc = (struct tcphdr *)ip_next(pip);
	ptr = (u_short *)tc;

	-/* Add up TCP header and data */
	+ /* Add up TCP header and data */
	nbytes = ntcp;
	sum = 0;
	while (nbytes > 1) {
	@@ -129,7 +128,7 @@
	((u_char *)&oddbyte)[1] = 0;
	sum += oddbyte;
	}
	-/* "Pseudo-header" data */
	+ /* "Pseudo-header" data */
	ptr = (void *)&pip->ip_dst;
	sum += *ptr++;
	sum += *ptr;
	@@ -139,14 +138,14 @@
	sum += htons((u_short)ntcp);
	sum += htons((u_short)pip->ip_p);

	-/* Roll over carry bits */
	+ /* Roll over carry bits */
	sum = (sum >> 16) + (sum & 0xffff);
	sum += (sum >> 16);

	-/* Return checksum */
	+ /* Return checksum */
	return ((u_short)~sum);
	}
	-#endif /* not _KERNEL */
	+#endif /* not _KERNEL */

	void
	DifferentialChecksum(u_short cksum, void newp, void *oldp, int n)
	@@ -158,7 +157,7 @@

	accumulate = *cksum;
	for (i = 0; i < n; i++) {
	- accumulate -= *new++;
	+ accumulate -= *new ++;
	accumulate += *old++;
	}

	Index: sys/netinet/libalias/libalias.3
	===================================================================
	--- sys/netinet/libalias/libalias.3
	+++ sys/netinet/libalias/libalias.3
	@@ -527,9 +527,9 @@
	LibAliasRedirectAddr(la, inet_aton("192.168.0.2"),
	inet_aton("141.221.254.101"));
	LibAliasRedirectAddr(la, inet_aton("192.168.0.3"),
	- inet_aton("141.221.254.101"));
	+ inet_aton("141.221.254.101"));
	LibAliasRedirectAddr(la, inet_aton("192.168.0.4"),
	- inet_aton("141.221.254.101"));
	+ inet_aton("141.221.254.101"));
	.Pp
	Any outgoing connections such as
	.Xr telnet 1
	@@ -1083,106 +1083,69 @@
	send it the
	.Dv SIGHUP
	signal:
	-.Pp
	-.Dl "kill -HUP <process_pid>"
	-.Ss MODULAR ARCHITECURE: HOW IT WORKS
	-The modular architecture of
	-.Nm
	-works similar whether it is running inside the
	-kernel or in userland.
	-From
	-.Pa alias_mod.c :
	-.Bd -literal
	-/* Protocol and userland module handlers chains. */
	-LIST_HEAD(handler_chain, proto_handler) handler_chain ...
	-\&...
	-SLIST_HEAD(dll_chain, dll) dll_chain ...
	-.Ed
	-.Pp
	-.Va handler_chain
	-keeps track of all the protocol handlers loaded, while
	-.Va ddl_chain
	-tracks which userland modules are loaded.
	-.Pp
	-.Va handler_chain
	-is composed of
	-.Vt "struct proto_handler"
	-entries:
	-.Bd -literal
	-struct proto_handler {
	+.Pp.Dl "kill -HUP <process_pid>"
	+ .Ss MODULAR ARCHITECURE
	+ : HOW IT WORKS The modular architecture of.Nm works similar whether it is
	+ running inside the kernel or
	+ in userland.From.Pa alias_mod.c :.Bd -
	+ literal
	+ /* Protocol and userland module handlers chains. */
	+ LIST_HEAD(handler_chain, proto_handler) handler_chain...
	+\&...SLIST_HEAD(dll_chain, dll) dll_chain....Ed.Pp.Va handler_chain keeps track
	+ of all the protocol handlers loaded,
	+ while.Va ddl_chain tracks which userland modules are loaded..Pp
	+ .Va handler_chain is composed of.Vt "struct proto_handler" entries
	+ :.Bd -
	+ literal struct proto_handler {
	u_int pri;
	int16_t dir;
	uint8_t proto;
	- int (fingerprint)(struct libalias la,
	- struct ip pip, struct alias_data ah);
	- int (protohandler)(struct libalias la,
	- struct ip pip, struct alias_data ah);
	+ int (fingerprint)(struct libalias la, struct ip *pip,
	+ struct alias_data *ah);
	+ int (protohandler)(struct libalias la, struct ip *pip,
	+ struct alias_data *ah);
	TAILQ_ENTRY(proto_handler) link;
	};
	-.Ed
	-.Pp
	-where:
	-.Bl -inset
	-.It Va pri
	-is the priority assigned to a protocol handler; lower priority
	-is better.
	-.It Va dir
	-is the direction of packets: ingoing or outgoing.
	-.It Va proto
	-indicates to which protocol this packet belongs: IP, TCP or UDP.
	-.It Va fingerprint
	-points to the fingerprint function while protohandler points
	-to the protocol handler function.
	-.El
	-.Pp
	-The
	-.Va fingerprint
	-function has the dual role of checking if the
	-incoming packet is found, and if it belongs to any categories that this
	-module can handle.
	-.Pp
	-The
	-.Va protohandler
	-function actually manipulates
	-the packet to make
	-.Nm
	-correctly NAT it.
	-.Pp
	-When a packet enters
	-.Nm ,
	-if it meets a module hook,
	-.Va handler_chain
	-is searched to see if there is an handler that matches
	-this type of a packet (it checks protocol and direction of packet).
	-Then, if more than one handler is found, it starts with the module with
	-the lowest priority number: it calls the
	-.Va fingerprint
	-function and interprets the result.
	-.Pp
	-If the result value is equal to 0 then it calls the protocol handler
	-of this handler and returns.
	-Otherwise, it proceeds to the next eligible module until the
	-.Va handler_chain
	-is exhausted.
	-.Pp
	-Inside
	-.Nm ,
	-the module hook looks like this:
	-.Bd -literal -offset indent
	-struct alias_data ad = {
	- lnk,
	- &original_address,
	- &alias_address,
	- &alias_port,
	- &ud->uh_sport, /* original source port */
	- &ud->uh_dport, /* original dest port */
	- 256 /* maxpacketsize */
	-};
	+.Ed.Pp where :.Bl -
	+ inset.It Va pri is the priority assigned to a protocol handler;
	+lower priority is better..It Va dir is the direction of packets : ingoing or
	+ outgoing..It Va proto indicates to which protocol this packet belongs : IP,
	+ TCP or
	+ UDP..It Va fingerprint points to the fingerprint function while protohandler
	+ points to the protocol handler function..El.Pp The.Va
	+ fingerprint function has the dual role of checking if the
	+ incoming packet is found,
	+ and if it belongs to any categories that this module can handle..Pp
	+ The.Va protohandler function actually manipulates the packet to
	+ make.Nm correctly NAT it..Pp When a packet enters.Nm,
	+ if it meets a module hook,
	+ .Va handler_chain is searched to see if there
	+ is an handler that matches this type of a
	+ packet(it checks protocol and direction of packet)
	+ .Then,
	+ if more than one handler is found,
	+ it starts with the module with the lowest priority number
	+ : it calls the.Va fingerprint function and interprets the result.
	+ .Pp If the result value is equal to
	+ 0 then it calls the protocol handler of this handler and returns.Otherwise
	+ ,
	+ it proceeds to the next eligible module until the
	+ .Va handler_chain is exhausted..Pp Inside.Nm,
	+ the module hook looks like this :.Bd - literal
	+ - offset indent struct alias_data ad = {
	+ lnk,
	+ &original_address,
	+ &alias_address,
	+ &alias_port,
	+ &ud -> uh_sport, /* original source port */
	+ &ud->uh_dport, /* original dest port */
	+ 256 /* maxpacketsize */
	+ };

	\&...

	-/* walk out chain */
	-err = find_handler(IN, UDP, la, pip, &ad);
	+ /* walk out chain */
	+ err = find_handler(IN, UDP, la, pip, &ad);
	.Ed
	.Pp
	All data useful to a module are gathered together in an
	@@ -1233,26 +1196,22 @@
	.Nm
	first unloads all the loaded modules, then reloads all the modules listed in
	.Pa /etc/libalias.conf :
	-for every module loaded, a new entry is added to
	-.Va dll_chain .
	-.Pp
	-.Va dll_chain
	-is composed of
	-.Vt "struct dll"
	-entries:
	-.Bd -literal
	-struct dll {
	- /* name of module */
	- char name[DLL_LEN];
	- /*
	- * ptr to shared obj obtained through
	- * dlopen() - use this ptr to get access
	- * to any symbols from a loaded module
	- * via dlsym()
	- */
	- void *handle;
	- struct dll *next;
	-};
	+for
	+ every module loaded,
	+ a new entry is added to.Va dll_chain..Pp.Va dll_chain is composed
	+ of.Vt "struct dll" entries :.Bd -
	+ literal struct dll {
	+ /* name of module */
	+ char name[DLL_LEN];
	+ /*
	+ * ptr to shared obj obtained through
	+ * dlopen() - use this ptr to get access
	+ * to any symbols from a loaded module
	+ * via dlsym()
	+ */
	+ void *handle;
	+ struct dll *next;
	+ };
	.Ed
	.Bl -inset
	.It Va name
	@@ -1331,144 +1290,88 @@
	}
	return (error);
	}
	-.Ed
	-When running as KLD,
	-.Fn mod_handler
	-registers/deregisters the module using
	-.Fn LibAliasAttachHandlers
	-and
	-.Fn LibAliasDetachHandlers ,
	-respectively.
	-.Pp
	-Every module must contain at least 2 functions: one fingerprint
	-function and a protocol handler function.
	-.Bd -literal
	+.Ed When running as KLD,
	+ .Fn mod_handler registers /
	+ deregisters the module using.Fn LibAliasAttachHandlers and.Fn
	+ LibAliasDetachHandlers,
	+ respectively.
	+ .Pp Every module must contain at least 2 functions
	+ : one fingerprint function and a protocol handler function..Bd -
	+ literal
	#ifdef _KERNEL
	-static
	+ static
	#endif
	-int
	-fingerprint(struct libalias la, struct ip pip, struct alias_data *ah)
	+ int
	+ fingerprint(struct libalias la, struct ip pip, struct alias_data *ah)
	{
	-
	-\&...
	+ \&...
	}

	#ifdef _KERNEL
	static
	#endif
	-int
	-protohandler(struct libalias la, struct ip pip,
	- struct alias_data *ah)
	-{
	+ int
	+ protohandler(struct libalias la, struct ip pip, struct alias_data *ah) {

	-\&...
	-}
	-.Ed
	-and they must accept exactly these input parameters.
	-.Ss PATCHING AN APPLICATION FOR USERLAND LIBALIAS MODULES
	-To add module support into an application that uses
	-.Nm ,
	-the following simple steps can be followed.
	-.Bl -enum
	-.It
	-Find the main file of an application
	-(let us call it
	-.Pa main.c ) .
	-.It
	-Add this to the header section of
	-.Pa main.c ,
	-if not already present:
	-.Pp
	-.Dl "#include <signal.h>"
	-.Pp
	-and this just after the header section:
	-.Pp
	-.Dl "static void signal_handler(int);"
	-.It
	-Add the following line to the init function of an application or,
	-if it does not have any init function, put it in
	-.Fn main :
	-.Pp
	-.Dl "signal(SIGHUP, signal_handler);"
	-.Pp
	-and place the
	-.Fn signal_handler
	-function somewhere in
	-.Pa main.c :
	-.Bd -literal -offset indent
	-static void
	-signal_handler(int sig)
	+\& ...}
	+ .Ed and they must accept exactly these input parameters.
	+ .Ss PATCHING AN APPLICATION FOR USERLAND LIBALIAS MODULES To add module
	+ support into an application that uses.Nm,
	+ the following simple steps can be followed..Bl -
	+ enum.It Find the main file of an application(let us call it.Pa main.c)
	+ ..It Add this to the header section of.Pa main.c,
	+ if not already present :.Pp.Dl "#include <signal.h>".Pp and
	+ this just after the header section
	+ :.Pp.Dl "static void signal_handler(int);"
	+ .It Add the following line to the init function of an application
	+ or
	+ , if it does not have any init function,
	+ put it in.Fn main :.Pp.Dl "signal(SIGHUP, signal_handler);".Pp and place the
	+ .Fn signal_handler function somewhere in.Pa main.c
	+ :.Bd
	+ - literal - offset indent static void signal_handler(int sig)
	{
	-
	LibAliasRefreshModules();
	}
	-.Ed
	-.Pp
	-Otherwise, if an application already traps the
	-.Dv SIGHUP
	-signal, just add a call to
	-.Fn LibAliasRefreshModules
	-in the signal handler function.
	-.El
	-For example, to patch
	-.Xr natd 8
	-to use
	-.Nm
	-modules, just add the following line to
	-.Fn RefreshAddr "int sig __unused" :
	-.Pp
	-.Dl "LibAliasRefreshModules()"
	-.Pp
	-recompile and you are done.
	-.Ss LOGGING SUPPORT IN KERNEL LAND
	-When working as KLD,
	-.Nm
	-now has log support that
	-happens on a buffer allocated inside
	-.Vt "struct libalias"
	-(from
	-.Pa alias_local.h ) :
	-.Bd -literal
	-struct libalias {
	- ...
	+.Ed.Pp Otherwise, if an application already traps the.Dv SIGHUP signal,
	+ just add a call to.Fn
	+ LibAliasRefreshModules in the signal handler function..El For example,
	+ to patch.Xr natd 8 to use.Nm modules,
	+ just add the following line to.Fn RefreshAddr "int sig __unused"
	+ :.Pp.Dl "LibAliasRefreshModules()".Pp recompile and you are done..Ss
	+ LOGGING SUPPORT IN KERNEL LAND When working as KLD,
	+ .Nm now has log support that happens on a buffer allocated inside
	+ .Vt "struct libalias"(from.Pa alias_local.h)
	+ :.Bd
	+ - literal struct libalias {
	+ ...

	/* log descriptor */
	-#ifdef KERNEL_LOG
	- char logDesc; /
	- * ptr to an auto-malloced
	- * memory buffer when libalias
	- * works as kld
	- */
	+#ifdef KERNEL_LOG
	+ char logDesc; /
	+ * ptr to an auto-malloced
	+ * memory buffer when libalias
	+ * works as kld
	+ */
	#else
	- FILE logDesc; /
	- * ptr to /var/log/alias.log
	- * when libalias runs as a
	- * userland lib
	- */
	+ FILE logDesc; /
	+ * ptr to /var/log/alias.log
	+ * when libalias runs as a
	+ * userland lib
	+ */
	#endif

	...
	-}
	-.Ed
	-so all applications using
	-.Nm
	-will be able to handle their
	-own logs, if they want, accessing
	-.Va logDesc .
	-Moreover, every change to a log buffer is automatically added to
	-.Xr syslog 3
	-with the
	-.Dv LOG_SECURITY
	-facility and the
	-.Dv LOG_INFO
	-level.
	-.Sh AUTHORS
	-.An Charles Mott Aq cm@linktel.net ,
	-versions 1.0 - 1.8, 2.0 - 2.4.
	-.An Eivind Eklund Aq eivind@FreeBSD.org ,
	-versions 1.8b, 1.9 and 2.5.
	-Added IRC DCC support as well as contributing a number of architectural
	-improvements; added the firewall bypass for FTP/IRC DCC.
	+}.Ed so all applications using.Nm will be able to handle their own logs,
	+ if they want, accessing.Va logDesc.Moreover,
	+ every change to a log buffer is automatically added to.Xr syslog 3 with the
	+ .Dv LOG_SECURITY facility and the.Dv LOG_INFO
	+ level..Sh AUTHORS.An Charles Mott Aq cm @linktel.net,
	+ versions 1.0 - 1.8, 2.0 - 2.4. .An Eivind Eklund Aq eivind @FreeBSD.org,
	+ versions 1.8b,
	+ 1.9 and
	+ 2.5. Added IRC DCC support as well as contributing a number of architectural
	+ improvements; added the firewall bypass for FTP/IRC DCC.
	.An Erik Salander Aq erik@whistle.com
	added support for PPTP and RTSP.
	.An Junichi Satoh Aq junichi@junichi.org

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