#include <sys/cdefs.h>
#include <machine/stdarg.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/rwlock.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <netinet/tcp.h>
#include <netinet/libalias/alias.h>
#include <netinet/libalias/alias_local.h>
#include <netinet/libalias/alias_mod.h>
#include <net/if.h>
#include "alias_db.h"
#include <netinet/ip_fw.h>
#include <string.h>
#include <err.h>

Include dependency graph for alias_db.c:

Functions
	__FBSDID ("$FreeBSD$")

static	LIST_HEAD (MODULE_VERSION(libalias)

	DECLARE_MODULE (alias, alias_mod, SI_SUB_DRIVERS, SI_ORDER_SECOND)

	SPLAY_GENERATE (splay_out, alias_link, all.out, cmp_out)

	SPLAY_GENERATE (splay_in, group_in, in, cmp_in)

static struct group_in *	StartPointIn (struct libalias *la, struct in_addr alias_addr, u_short alias_port, int link_type, int create)

static int	SeqDiff (u_long x, u_long y)

static void	AliasLog (char str, const char format,...)

static void	ShowAliasStats (struct libalias *la)

void	SctpShowAliasStats (struct libalias *la)
	Log current statistics for the libalias instance. More...

static u_short	_RandomPort (struct libalias *la)

static int	GetNewPort (struct libalias la, struct alias_link lnk, int alias_port_param)

static u_short	GetSocket (struct libalias la, u_short port_net, int sockfd, int link_type)

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)

static void	CleanupAliasData (struct libalias *la, int deletePermanent)

static void	CleanupLink (struct libalias la, struct alias_link *lnk, int deletePermanent)

static struct alias_link *	UseLink (struct libalias la, struct alias_link lnk)

static void	DeleteLink (struct alias_link **plnk, int deletePermanent)

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_port_param, int link_type)

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)

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)

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, int replace_partial_links)

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, int replace_partial_links)

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)

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 alias_link *	FindIcmpIn (struct libalias *la, struct in_addr dst_addr, struct in_addr alias_addr, u_short id_alias, int create)

struct alias_link *	FindIcmpOut (struct libalias *la, struct in_addr src_addr, struct in_addr dst_addr, u_short id, int create)

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)

struct alias_link *	FindProtoIn (struct libalias *la, struct in_addr dst_addr, struct in_addr alias_addr, u_char proto)

struct alias_link *	FindProtoOut (struct libalias *la, struct in_addr src_addr, struct in_addr dst_addr, u_char proto)

struct alias_link *	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 *	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 *	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 *	FindPptpOutByPeerCallId (struct libalias *la, struct in_addr src_addr, struct in_addr dst_addr, u_int16_t dst_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 *	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)

void	SetFragmentAddr (struct alias_link *lnk, struct in_addr src_addr)

void	GetFragmentAddr (struct alias_link lnk, struct in_addr src_addr)

void	SetFragmentPtr (struct alias_link lnk, void fptr)

void	GetFragmentPtr (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)

static u_short	GetDestPort (struct alias_link *lnk)

void	SetAckModified (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)

int	GetAckModified (struct alias_link *lnk)

int	GetDeltaAckIn (u_long ack, struct alias_link *lnk)

int	GetDeltaSeqOut (u_long seq, 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)

void	HouseKeeping (struct libalias *la)

static int	InitPacketAliasLog (struct libalias *la)

static void	UninitPacketAliasLog (struct libalias *la)

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)

int	LibAliasAddServer (struct libalias la, struct alias_link lnk, struct in_addr addr, u_short port)

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 alias_link *	LibAliasRedirectAddr (struct libalias *la, struct in_addr src_addr, struct in_addr alias_addr)

int	LibAliasRedirectDynamic (struct libalias la, struct alias_link lnk)

void	LibAliasRedirectDelete (struct libalias la, struct alias_link lnk)

void	LibAliasSetAddress (struct libalias *la, struct in_addr addr)

void	LibAliasSetAliasPortRange (struct libalias *la, u_short port_low, u_short port_high)

void	LibAliasSetTarget (struct libalias *la, struct in_addr target_addr)

static void	finishoff (void)

struct libalias *	LibAliasInit (struct libalias *la)

void	LibAliasUninit (struct libalias *la)

unsigned int	LibAliasSetMode (struct libalias *la, unsigned int flags, unsigned int mask)

static ipfw_insn *	next_cmd (ipfw_insn *cmd)

static ipfw_insn *	fill_cmd (ipfw_insn *cmd, enum ipfw_opcodes opcode, int size, int flags, u_int16_t arg)

static ipfw_insn *	fill_ip (ipfw_insn *cmd1, enum ipfw_opcodes opcode, u_int32_t addr)

static ipfw_insn *	fill_one_port (ipfw_insn *cmd1, enum ipfw_opcodes opcode, u_int16_t port)

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)

static void	InitPunchFW (struct libalias *la)

static void	UninitPunchFW (struct libalias *la)

void	PunchFWHole (struct alias_link *lnk)

static void	ClearFWHole (struct alias_link *lnk)

static void	ClearAllFWHoles (struct libalias *la)

void	LibAliasSetFWBase (struct libalias *la, unsigned int base, unsigned int num)

void	LibAliasSetSkinnyPort (struct libalias *la, unsigned int port)

struct in_addr	FindSctpRedirectAddress (struct libalias la, struct sctp_nat_msg sm)

Variables
static moduledata_t	alias_mod

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ _FindLinkIn()

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
	)

static

Definition at line 834 of file alias_db.c.

References server::addr, alias_link::dst_addr, alias_link::dst_port, alias_link::flags, INADDR_ANY, LIBALIAS_LOCK_ASSERT, LINK_PARTIALLY_SPECIFIED, LINK_SCTP, LINK_UNKNOWN_DEST_ADDR, LINK_UNKNOWN_DEST_PORT, server::next, group_in::partial, server::port, ReLink(), in_addr::s_addr, alias_link::server, alias_link::src_addr, alias_link::src_port, StartPointIn(), and UseLink().

Referenced by FindLinkIn().

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◆ _FindLinkOut()

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,
		int	replace_partial_links
	)

static

Definition at line 767 of file alias_db.c.

References _SearchLinkOut(), alias_link::alias_addr, alias_link::alias_port, ANY_ADDR, alias_link::dst_addr, alias_link::dst_port, INADDR_ANY, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::link_type, ReLink(), in_addr::s_addr, alias_link::src_addr, and alias_link::src_port.

Referenced by FindLinkOut().

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◆ _RandomPort()

static u_short _RandomPort ( struct libalias * la )

static

Definition at line 192 of file alias_db.c.

References libalias::aliasPortLength, and libalias::aliasPortLower.

Referenced by FindNewPortGroup(), and GetNewPort().

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◆ _SearchLinkOut()

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
	)

static

Definition at line 748 of file alias_db.c.

References alias_link::dst_addr, alias_link::dst_port, alias_link::la, alias_link::link_type, alias_link::src_addr, alias_link::src_port, and UseLink().

Referenced by _FindLinkOut().

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◆ AddFragmentPtrLink()

struct alias_link * AddFragmentPtrLink	(	struct libalias *	la,
		struct in_addr	dst_addr,
		u_short	ip_id
	)

Definition at line 1069 of file alias_db.c.

References AddLink(), ANY_ADDR, alias_link::dst_addr, ip_id, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_FRAGMENT_PTR, NO_DEST_PORT, and NO_SRC_PORT.

Referenced by LibAliasSaveFragment().

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◆ AddLink()

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_port_param,
		int	link_type
	)

Definition at line 564 of file alias_db.c.

References tcp_dat::ack, tcp_state::ack_modified, ack_data_record::active, alias_link::alias_addr, group_in::alias_addr, alias_link::alias_port, ALIAS_TCP_STATE_NOT_CONNECTED, alias_link::data, alias_link::dst_addr, alias_link::dst_port, expire, alias_link::expire, alias_link::flags, FRAGMENT_ID_EXPIRE_TIME, FRAGMENT_PTR_EXPIRE_TIME, libalias::fragmentIdLinkCount, libalias::fragmentPtrLinkCount, tcp_dat::fwhole, GetNewPort(), ICMP_EXPIRE_TIME, libalias::icmpLinkCount, tcp_state::in, INADDR_ANY, tcp_state::index, alias_link::la, LIBALIAS_LOCK_ASSERT, LibAliasTime, LINK_ADDR, LINK_FRAGMENT_ID, LINK_FRAGMENT_PTR, LINK_ICMP, LINK_PARTIALLY_SPECIFIED, LINK_PPTP, LINK_TCP, alias_link::link_type, group_in::link_type, LINK_UDP, LINK_UNKNOWN_DEST_ADDR, LINK_UNKNOWN_DEST_PORT, N_LINK_TCP_DATA, tcp_state::out, libalias::packetAliasMode, group_in::partial, alias_link::pflags, PKT_ALIAS_LOG, libalias::pptpLinkCount, PROTO_EXPIRE_TIME, libalias::protoLinkCount, alias_link::proxy_addr, alias_link::proxy_port, in_addr::s_addr, alias_link::server, ShowAliasStats(), alias_link::sockfd, alias_link::src_addr, alias_link::src_port, StartPointIn(), tcp_dat::state, alias_link::tcp, TCP_EXPIRE_INITIAL, libalias::tcpLinkCount, alias_link::time, alias_link::timestamp, UDP_EXPIRE_TIME, and libalias::udpLinkCount.

Referenced by AddFragmentPtrLink(), AddPptp(), AliasHandleFtpIn(), FindFragmentIn1(), FindIcmpIn(), FindIcmpOut(), FindProtoIn(), FindProtoOut(), FindRtspOut(), FindUdpTcpIn(), FindUdpTcpOut(), LibAliasRedirectAddr(), LibAliasRedirectPort(), LibAliasRedirectProto(), NewFtpMessage(), and ReLink().

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◆ AddPptp()

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
	)

Definition at line 1211 of file alias_db.c.

References AddLink(), alias_link::alias_addr, alias_link::dst_addr, GET_ALIAS_PORT, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_PPTP, and alias_link::src_addr.

Referenced by AliasHandlePptpOut().

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◆ AddSeq()

void AddSeq	(	struct alias_link *	lnk,
		int	delta,
		u_int	ip_hl,
		u_short	ip_len,
		u_long	th_seq,
		u_int	th_off
	)

Definition at line 1672 of file alias_db.c.

References tcp_dat::ack, ack_data_record::ack_new, ack_data_record::ack_old, ack_data_record::active, alias_link::data, ack_data_record::delta, tcp_state::index, ip_hl, ip_len, N_LINK_TCP_DATA, tcp_dat::state, and alias_link::tcp.

Referenced by alias_rtsp_out(), AliasHandleIrcOut(), NewFtpMessage(), and ProxyEncodeTcpStream().

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◆ AliasLog()

static void AliasLog	(	char *	str,
		const char *	format,
			...
	)

static

Definition at line 135 of file alias_db.c.

References LIBALIAS_BUF_SIZE.

Referenced by ShowAliasStats().

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◆ CleanupAliasData()

static void CleanupAliasData	(	struct libalias *	la,
		int	deletePermanent
	)

static

Definition at line 423 of file alias_db.c.

References DeleteLink(), expire, alias_link::la, and LIBALIAS_LOCK_ASSERT.

Referenced by LibAliasInit(), LibAliasSetAddress(), and LibAliasUninit().

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◆ CleanupLink()

static void CleanupLink	(	struct libalias *	la,
		struct alias_link **	lnk,
		int	deletePermanent
	)

static

Definition at line 434 of file alias_db.c.

References DeleteLink(), expire, alias_link::la, LIBALIAS_LOCK_ASSERT, and LibAliasTime.

Referenced by HouseKeeping(), and UseLink().

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◆ ClearAllFWHoles()

static void ClearAllFWHoles ( struct libalias * la )

static

Definition at line 2416 of file alias_db.c.

References libalias::fireWallBaseNum, libalias::fireWallFD, libalias::fireWallField, libalias::fireWallNumNums, IPPROTO_IP, and rule.

Referenced by InitPunchFW(), and UninitPunchFW().

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◆ ClearFWHole()

static void ClearFWHole ( struct alias_link * lnk )

static

Definition at line 2394 of file alias_db.c.

References alias_link::data, libalias::fireWallFD, libalias::fireWallField, fw_clrfield, tcp_dat::fwhole, IPPROTO_IP, alias_link::la, LINK_TCP, alias_link::link_type, rule, and alias_link::tcp.

Referenced by DeleteLink().

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◆ DECLARE_MODULE()

DECLARE_MODULE	(	alias	,
		alias_mod	,
		SI_SUB_DRIVERS	,
		SI_ORDER_SECOND
	)

◆ DeleteLink()

static void DeleteLink	(	struct alias_link **	plnk,
		int	deletePermanent
	)

static

Definition at line 462 of file alias_db.c.

References alias_link::alias_addr, alias_link::alias_port, ClearFWHole(), alias_link::data, expire, alias_link::flags, alias_link::frag_ptr, libalias::fragmentIdLinkCount, libalias::fragmentPtrLinkCount, libalias::icmpLinkCount, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_ADDR, LINK_FRAGMENT_ID, LINK_FRAGMENT_PTR, LINK_ICMP, LINK_PERMANENT, LINK_PPTP, LINK_TCP, alias_link::link_type, LINK_UDP, next, server::next, libalias::packetAliasMode, group_in::partial, PKT_ALIAS_LOG, libalias::pptpLinkCount, libalias::protoLinkCount, alias_link::server, ShowAliasStats(), libalias::sockCount, alias_link::sockfd, StartPointIn(), alias_link::tcp, libalias::tcpLinkCount, and libalias::udpLinkCount.

Referenced by CleanupAliasData(), CleanupLink(), LibAliasRedirectDelete(), ReLink(), and SetExpire().

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◆ fill_cmd()

static ipfw_insn * fill_cmd	(	ipfw_insn *	cmd,
		enum ipfw_opcodes	opcode,
		int	size,
		int	flags,
		u_int16_t	arg
	)

static

Definition at line 2237 of file alias_db.c.

References _ipfw_insn::arg1, F_LEN_MASK, F_NOT, F_OR, _ipfw_insn::len, and next_cmd().

Referenced by fill_ip(), fill_one_port(), and fill_rule().

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◆ fill_ip()

static ipfw_insn * fill_ip	(	ipfw_insn *	cmd1,
		enum ipfw_opcodes	opcode,
		u_int32_t	addr
	)

static

Definition at line 2247 of file alias_db.c.

References _ipfw_insn_ip::addr, F_INSN_SIZE, fill_cmd(), and in_addr::s_addr.

Referenced by fill_rule().

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◆ fill_one_port()

static ipfw_insn * fill_one_port	(	ipfw_insn *	cmd1,
		enum ipfw_opcodes	opcode,
		u_int16_t	port
	)

static

Definition at line 2256 of file alias_db.c.

References F_INSN_SIZE, fill_cmd(), and _ipfw_insn_u16::ports.

Referenced by fill_rule().

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◆ fill_rule()

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
	)

static

Definition at line 2265 of file alias_db.c.

References F_INSN_SIZE, fill_cmd(), fill_ip(), fill_one_port(), O_IP_DST, O_IP_DSTPORT, O_IP_SRC, O_IP_SRCPORT, O_PROTO, rule, and in_addr::s_addr.

Referenced by PunchFWHole().

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◆ FindAliasAddress()

struct in_addr FindAliasAddress	(	struct libalias *	la,
		struct in_addr	original_addr
	)

Definition at line 1363 of file alias_db.c.

References alias_link::alias_addr, libalias::aliasAddress, ANY_ADDR, FindLinkOut(), INADDR_ANY, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_ADDR, and in_addr::s_addr.

Referenced by alias_rtsp_out(), FindIcmpOut(), FindProtoOut(), FindRtspOut(), FindUdpTcpOut(), and FragmentOut().

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◆ FindFragmentIn1()

struct alias_link * FindFragmentIn1	(	struct libalias *	la,
		struct in_addr	dst_addr,
		struct in_addr	alias_addr,
		u_short	ip_id
	)

Definition at line 1038 of file alias_db.c.

References AddLink(), alias_link::alias_addr, ANY_ADDR, alias_link::dst_addr, FindLinkIn(), ip_id, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_FRAGMENT_ID, NO_DEST_PORT, and NO_SRC_PORT.

Referenced by LibAliasInLocked().

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◆ FindFragmentIn2()

struct alias_link * FindFragmentIn2	(	struct libalias *	la,
		struct in_addr	dst_addr,
		struct in_addr	alias_addr,
		u_short	ip_id
	)

Definition at line 1059 of file alias_db.c.

References alias_link::alias_addr, alias_link::dst_addr, FindLinkIn(), ip_id, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_FRAGMENT_ID, and NO_DEST_PORT.

Referenced by FragmentIn().

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◆ FindFragmentPtr()

struct alias_link * FindFragmentPtr	(	struct libalias *	la,
		struct in_addr	dst_addr,
		u_short	ip_id
	)

Definition at line 1079 of file alias_db.c.

References ANY_ADDR, alias_link::dst_addr, FindLinkIn(), ip_id, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_FRAGMENT_PTR, and NO_DEST_PORT.

Referenced by LibAliasGetFragment().

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◆ FindIcmpIn()

struct alias_link * FindIcmpIn	(	struct libalias *	la,
		struct in_addr	dst_addr,
		struct in_addr	alias_addr,
		u_short	id_alias,
		int	create
	)

Definition at line 992 of file alias_db.c.

References AddLink(), alias_link::alias_addr, alias_link::dst_addr, FindLinkIn(), FindOriginalAddress(), alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_ICMP, NO_DEST_PORT, libalias::packetAliasMode, and PKT_ALIAS_DENY_INCOMING.

Referenced by IcmpAliasIn1(), IcmpAliasIn2(), and LibAliasUnaliasOut().

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◆ FindIcmpOut()

struct alias_link * FindIcmpOut	(	struct libalias *	la,
		struct in_addr	src_addr,
		struct in_addr	dst_addr,
		u_short	id,
		int	create
	)

Definition at line 1015 of file alias_db.c.

References AddLink(), alias_link::dst_addr, FindAliasAddress(), FindLinkOut(), GET_ALIAS_ID, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_ICMP, NO_DEST_PORT, and alias_link::src_addr.

Referenced by IcmpAliasOut1(), and IcmpAliasOut2().

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◆ FindLinkIn()

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
	)

static

Definition at line 946 of file alias_db.c.

References _FindLinkIn(), alias_link::alias_addr, alias_link::alias_port, libalias::aliasAddress, ANY_ADDR, alias_link::dst_addr, alias_link::dst_port, INADDR_ANY, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::link_type, and in_addr::s_addr.

Referenced by FindFragmentIn1(), FindFragmentIn2(), FindFragmentPtr(), FindIcmpIn(), FindNewPortGroup(), FindOriginalAddress(), FindProtoIn(), FindSctpRedirectAddress(), and FindUdpTcpIn().

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◆ FindLinkOut()

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,
		int	replace_partial_links
	)

static

Definition at line 804 of file alias_db.c.

References _FindLinkOut(), libalias::aliasAddress, ANY_ADDR, alias_link::dst_addr, alias_link::dst_port, INADDR_ANY, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::link_type, in_addr::s_addr, alias_link::src_addr, and alias_link::src_port.

Referenced by FindAliasAddress(), FindIcmpOut(), FindProtoOut(), FindRtspOut(), and FindUdpTcpOut().

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◆ FindNewPortGroup()

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
	)

Definition at line 344 of file alias_db.c.

References _RandomPort(), alias_link::alias_addr, alias_link::dst_addr, alias_link::dst_port, FindLinkIn(), GET_NEW_PORT_MAX_ATTEMPTS, IPPROTO_TCP, IPPROTO_UDP, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_TCP, alias_link::link_type, LINK_UDP, libalias::packetAliasMode, and PKT_ALIAS_SAME_PORTS.

Referenced by alias_rtsp_out().

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◆ FindOriginalAddress()

struct in_addr FindOriginalAddress	(	struct libalias *	la,
		struct in_addr	alias_addr
	)

Definition at line 1332 of file alias_db.c.

References server::addr, alias_link::alias_addr, libalias::aliasAddress, ANY_ADDR, FindLinkIn(), INADDR_ANY, INADDR_NONE, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_ADDR, server::next, in_addr::s_addr, alias_link::server, alias_link::src_addr, and libalias::targetAddress.

Referenced by FindIcmpIn(), FindProtoIn(), FindSctpRedirectAddress(), and FindUdpTcpIn().

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◆ FindPptpInByCallId()

struct alias_link * FindPptpInByCallId	(	struct libalias *	la,
		struct in_addr	dst_addr,
		struct in_addr	alias_addr,
		u_int16_t	dst_call_id
	)

Definition at line 1261 of file alias_db.c.

References alias_link::alias_addr, alias_link::dst_addr, alias_link::dst_port, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::pptp, in_addr::s_addr, and UseLink().

Referenced by AliasHandlePptpIn().

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◆ FindPptpInByPeerCallId()

struct alias_link * FindPptpInByPeerCallId	(	struct libalias *	la,
		struct in_addr	dst_addr,
		struct in_addr	alias_addr,
		u_int16_t	alias_call_id
	)

Definition at line 1279 of file alias_db.c.

References alias_link::alias_addr, alias_link::alias_port, alias_link::dst_addr, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::pptp, and in_addr::s_addr.

Referenced by AliasHandlePptpGreIn(), and AliasHandlePptpIn().

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◆ FindPptpOutByCallId()

struct alias_link * FindPptpOutByCallId	(	struct libalias *	la,
		struct in_addr	src_addr,
		struct in_addr	dst_addr,
		u_int16_t	src_call_id
	)

Definition at line 1227 of file alias_db.c.

References alias_link::dst_addr, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::pptp, in_addr::s_addr, alias_link::src_addr, alias_link::src_port, and UseLink().

Referenced by AliasHandlePptpOut().

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◆ FindPptpOutByPeerCallId()

struct alias_link * FindPptpOutByPeerCallId	(	struct libalias *	la,
		struct in_addr	src_addr,
		struct in_addr	dst_addr,
		u_int16_t	dst_call_id
	)

Definition at line 1244 of file alias_db.c.

References alias_link::dst_addr, alias_link::dst_port, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::pptp, in_addr::s_addr, alias_link::src_addr, and UseLink().

Referenced by AliasHandlePptpGreOut().

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◆ FindProtoIn()

struct alias_link * FindProtoIn	(	struct libalias *	la,
		struct in_addr	dst_addr,
		struct in_addr	alias_addr,
		u_char	proto
	)

Definition at line 1089 of file alias_db.c.

References AddLink(), alias_link::alias_addr, alias_link::dst_addr, FindLinkIn(), FindOriginalAddress(), alias_link::la, LIBALIAS_LOCK_ASSERT, NO_DEST_PORT, NO_SRC_PORT, libalias::packetAliasMode, and PKT_ALIAS_DENY_INCOMING.

Referenced by ProtoAliasIn().

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◆ FindProtoOut()

struct alias_link * FindProtoOut	(	struct libalias *	la,
		struct in_addr	src_addr,
		struct in_addr	dst_addr,
		u_char	proto
	)

Definition at line 1112 of file alias_db.c.

References AddLink(), alias_link::dst_addr, FindAliasAddress(), FindLinkOut(), alias_link::la, LIBALIAS_LOCK_ASSERT, NO_DEST_PORT, NO_SRC_PORT, and alias_link::src_addr.

Referenced by ProtoAliasOut().

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◆ FindRtspOut()

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
	)

Definition at line 1296 of file alias_db.c.

References AddLink(), alias_link::dst_addr, FindAliasAddress(), FindLinkOut(), IPPROTO_TCP, IPPROTO_UDP, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_TCP, alias_link::link_type, LINK_UDP, alias_link::src_addr, and alias_link::src_port.

Referenced by alias_rtsp_out(), and protohandler().

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◆ FindSctpRedirectAddress()

struct in_addr FindSctpRedirectAddress	(	struct libalias *	la,
		struct sctp_nat_msg *	sm
	)

Definition at line 2459 of file alias_db.c.

References FindLinkIn(), FindOriginalAddress(), LIBALIAS_LOCK_ASSERT, LINK_SCTP, NO_DEST_PORT, in_addr::s_addr, and alias_link::src_addr.

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◆ FindUdpTcpIn()

struct alias_link * 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
	)

Definition at line 1135 of file alias_db.c.

References AddLink(), alias_link::alias_addr, alias_link::alias_port, alias_link::dst_addr, alias_link::dst_port, FindLinkIn(), FindOriginalAddress(), IPPROTO_TCP, IPPROTO_UDP, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_TCP, alias_link::link_type, LINK_UDP, libalias::packetAliasMode, and PKT_ALIAS_DENY_INCOMING.

Referenced by IcmpAliasIn2(), LibAliasUnaliasOut(), TcpAliasIn(), and UdpAliasIn().

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◆ FindUdpTcpOut()

struct alias_link * 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
	)

Definition at line 1174 of file alias_db.c.

References AddLink(), alias_link::dst_addr, alias_link::dst_port, FindAliasAddress(), FindLinkOut(), GET_ALIAS_PORT, IPPROTO_TCP, IPPROTO_UDP, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_TCP, alias_link::link_type, LINK_UDP, alias_link::src_addr, and alias_link::src_port.

Referenced by alias_pna_out(), alias_skinny_opnrcvch_ack(), AliasHandleIrcOut(), IcmpAliasOut2(), TcpAliasOut(), and UdpAliasOut().

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◆ finishoff()

static void finishoff ( void )

static

Definition at line 2071 of file alias_db.c.

References LibAliasUninit().

Referenced by LibAliasInit().

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◆ GetAckModified()

int GetAckModified ( struct alias_link * lnk )

Definition at line 1576 of file alias_db.c.

References tcp_state::ack_modified, alias_link::data, tcp_dat::state, and alias_link::tcp.

Referenced by ProxyEncodeTcpStream(), TcpAliasIn(), and TcpAliasOut().

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◆ GetAliasAddress()

struct in_addr GetAliasAddress ( struct alias_link * lnk )

Definition at line 1500 of file alias_db.c.

References INADDR_ANY.

Referenced by alias_skinny_opnrcvch_ack(), alias_skinny_reg_msg(), AliasHandleFtpIn(), AliasHandleIrcOut(), AliasHandlePptpGreOut(), AliasHandlePptpIn(), AliasHandlePptpOut(), IcmpAliasOut1(), IcmpAliasOut2(), NewFtpMessage(), ProtoAliasOut(), TcpAliasIn(), TcpAliasOut(), UdpAliasIn(), and UdpAliasOut().

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◆ GetAliasPort()

u_short GetAliasPort ( struct alias_link * lnk )

Definition at line 1529 of file alias_db.c.

References alias_link::alias_port.

Referenced by alias_pna_out(), alias_skinny_opnrcvch_ack(), alias_skinny_port_msg(), AliasHandleIrcOut(), AliasHandlePptpOut(), IcmpAliasOut1(), IcmpAliasOut2(), NewFtpMessage(), TcpAliasOut(), and UdpAliasOut().

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◆ GetDefaultAliasAddress()

struct in_addr GetDefaultAliasAddress ( struct libalias * la )

Definition at line 1509 of file alias_db.c.

References LIBALIAS_LOCK_ASSERT.

Referenced by LibAliasOutLocked().

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◆ GetDeltaAckIn()

int GetDeltaAckIn	(	u_long	ack,
		struct alias_link *	lnk
	)

Definition at line 1588 of file alias_db.c.

References tcp_dat::ack, ack_data_record::ack_new, ack_data_record::active, alias_link::data, ack_data_record::delta, tcp_state::index, N_LINK_TCP_DATA, SeqDiff(), tcp_dat::state, and alias_link::tcp.

Referenced by TcpAliasIn().

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◆ GetDeltaSeqOut()

int GetDeltaSeqOut	(	u_long	seq,
		struct alias_link *	lnk
	)

Definition at line 1630 of file alias_db.c.

References tcp_dat::ack, ack_data_record::ack_old, ack_data_record::active, alias_link::data, ack_data_record::delta, tcp_state::index, N_LINK_TCP_DATA, SeqDiff(), tcp_dat::state, and alias_link::tcp.

Referenced by alias_rtsp_out(), AliasHandleIrcOut(), NewFtpMessage(), ProxyEncodeTcpStream(), and TcpAliasOut().

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◆ GetDestAddress()

struct in_addr GetDestAddress ( struct alias_link * lnk )

Definition at line 1494 of file alias_db.c.

Referenced by alias_pna_out(), AliasHandlePptpIn(), AliasHandlePptpOut(), NewFtpMessage(), and PunchFWHole().

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◆ GetDestPort()

static u_short GetDestPort ( struct alias_link * lnk )

static

Definition at line 1536 of file alias_db.c.

References alias_link::dst_port.

Referenced by PunchFWHole().

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◆ GetFragmentAddr()

void GetFragmentAddr	(	struct alias_link *	lnk,
		struct in_addr *	src_addr
	)

Definition at line 1403 of file alias_db.c.

References alias_link::data, alias_link::frag_addr, and alias_link::src_addr.

Referenced by FragmentIn().

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◆ GetFragmentPtr()

void GetFragmentPtr	(	struct alias_link *	lnk,
		void **	fptr
	)

Definition at line 1415 of file alias_db.c.

References alias_link::data, and alias_link::frag_ptr.

Referenced by LibAliasGetFragment().

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◆ GetNewPort()

static int GetNewPort	(	struct libalias *	la,
		struct alias_link *	lnk,
		int	alias_port_param
	)

static

Definition at line 207 of file alias_db.c.

References _RandomPort(), alias_link::alias_addr, alias_link::alias_port, alias_link::all, alias_link::dst_addr, alias_link::dst_port, alias_link::flags, GET_ALIAS_PORT, GET_NEW_PORT_MAX_ATTEMPTS, GetSocket(), alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_PARTIALLY_SPECIFIED, LINK_TCP, alias_link::link_type, LINK_UDP, libalias::packetAliasMode, PKT_ALIAS_SAME_PORTS, in_addr::s_addr, alias_link::sockfd, alias_link::src_port, and StartPointIn().

Referenced by AddLink().

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◆ GetOriginalAddress()

struct in_addr GetOriginalAddress ( struct alias_link * lnk )

Definition at line 1485 of file alias_db.c.

References INADDR_ANY.

Referenced by alias_rtsp_out(), AliasHandleFtpIn(), AliasHandlePptpGreIn(), AliasHandlePptpOut(), IcmpAliasIn1(), IcmpAliasIn2(), LibAliasUnaliasOut(), ProtoAliasIn(), PunchFWHole(), TcpAliasIn(), and UdpAliasIn().

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◆ GetOriginalPort()

u_short GetOriginalPort ( struct alias_link * lnk )

Definition at line 1523 of file alias_db.c.

References alias_link::src_port.

Referenced by AliasHandlePptpGreIn(), AliasHandlePptpIn(), IcmpAliasIn1(), IcmpAliasIn2(), LibAliasUnaliasOut(), PunchFWHole(), TcpAliasIn(), and UdpAliasIn().

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◆ GetProtocolFlags()

int GetProtocolFlags ( struct alias_link * lnk )

Definition at line 1723 of file alias_db.c.

References alias_link::pflags.

Referenced by AliasHandleFtpIn(), and AliasHandleFtpOut().

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◆ GetProxyAddress()

struct in_addr GetProxyAddress ( struct alias_link * lnk )

Definition at line 1551 of file alias_db.c.

Referenced by ProxyEncodeTcpStream(), TcpAliasIn(), and UdpAliasIn().

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◆ GetProxyPort()

u_short GetProxyPort ( struct alias_link * lnk )

Definition at line 1563 of file alias_db.c.

References alias_link::proxy_port.

Referenced by ProxyEncodeTcpStream(), TcpAliasIn(), and UdpAliasIn().

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◆ GetSocket()

static u_short GetSocket	(	struct libalias *	la,
		u_short	port_net,
		int *	sockfd,
		int	link_type
	)

static

Definition at line 293 of file alias_db.c.

References INADDR_ANY, LIBALIAS_LOCK_ASSERT, LINK_TCP, LINK_UDP, in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_port, and libalias::sockCount.

Referenced by GetNewPort().

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◆ GetStateIn()

int GetStateIn ( struct alias_link * lnk )

Definition at line 1471 of file alias_db.c.

References alias_link::data, tcp_state::in, tcp_dat::state, and alias_link::tcp.

Referenced by TcpMonitorIn().

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◆ GetStateOut()

int GetStateOut ( struct alias_link * lnk )

Definition at line 1478 of file alias_db.c.

References alias_link::data, tcp_state::out, tcp_dat::state, and alias_link::tcp.

Referenced by TcpMonitorOut().

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◆ HouseKeeping()

void HouseKeeping ( struct libalias * la )

Definition at line 1753 of file alias_db.c.

References CleanupLink(), alias_link::la, LIBALIAS_LOCK_ASSERT, LibAliasTime, libalias::tcpLinkCount, and libalias::udpLinkCount.

Referenced by LibAliasInLocked(), and LibAliasOutLocked().

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◆ InitPacketAliasLog()

static int InitPacketAliasLog ( struct libalias * la )

static

Definition at line 1798 of file alias_db.c.

References alias_link::la, LIBALIAS_BUF_SIZE, LIBALIAS_LOCK_ASSERT, libalias::logDesc, libalias::packetAliasMode, and PKT_ALIAS_LOG.

Referenced by LibAliasSetMode().

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◆ InitPunchFW()

static void InitPunchFW ( struct libalias * la )

static

Definition at line 2290 of file alias_db.c.

References ClearAllFWHoles(), libalias::fireWallActiveNum, libalias::fireWallBaseNum, libalias::fireWallFD, libalias::fireWallField, and libalias::fireWallNumNums.

Referenced by LibAliasSetMode().

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◆ LibAliasAddServer()

int LibAliasAddServer	(	struct libalias *	la,
		struct alias_link *	lnk,
		struct in_addr	addr,
		u_short	port
	)

Definition at line 1903 of file alias_db.c.

References server::addr, LIBALIAS_LOCK, LIBALIAS_UNLOCK, LINK_PPTP, alias_link::link_type, server::next, server::port, and alias_link::server.

◆ LibAliasInit()

struct libalias * LibAliasInit ( struct libalias * la )

◆ LibAliasRedirectAddr()

struct alias_link * LibAliasRedirectAddr	(	struct libalias *	la,
		struct in_addr	src_addr,
		struct in_addr	alias_addr
	)

Definition at line 1979 of file alias_db.c.

References AddLink(), alias_link::alias_addr, ANY_ADDR, alias_link::flags, alias_link::la, LIBALIAS_LOCK, LIBALIAS_UNLOCK, LINK_ADDR, LINK_PERMANENT, and alias_link::src_addr.

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◆ LibAliasRedirectDelete()

void LibAliasRedirectDelete	(	struct libalias *	la,
		struct alias_link *	lnk
	)

Definition at line 2025 of file alias_db.c.

References DeleteLink(), alias_link::la, LIBALIAS_LOCK, and LIBALIAS_UNLOCK.

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◆ LibAliasRedirectDynamic()

int LibAliasRedirectDynamic	(	struct libalias *	la,
		struct alias_link *	lnk
	)

Definition at line 2005 of file alias_db.c.

References alias_link::flags, alias_link::la, LIBALIAS_LOCK, LIBALIAS_UNLOCK, and LINK_PARTIALLY_SPECIFIED.

◆ LibAliasRedirectPort()

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
	)

Definition at line 1854 of file alias_db.c.

References AddLink(), alias_link::alias_addr, alias_link::alias_port, alias_link::dst_addr, alias_link::dst_port, alias_link::flags, IPPROTO_SCTP, IPPROTO_TCP, IPPROTO_UDP, alias_link::la, LIBALIAS_LOCK, LIBALIAS_UNLOCK, LINK_PERMANENT, LINK_SCTP, LINK_TCP, alias_link::link_type, LINK_UDP, alias_link::src_addr, and alias_link::src_port.

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◆ LibAliasRedirectProto()

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
	)

Definition at line 1951 of file alias_db.c.

References AddLink(), alias_link::alias_addr, alias_link::dst_addr, alias_link::flags, alias_link::la, LIBALIAS_LOCK, LIBALIAS_UNLOCK, LINK_PERMANENT, NO_DEST_PORT, NO_SRC_PORT, and alias_link::src_addr.

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◆ LibAliasSetAddress()

void LibAliasSetAddress	(	struct libalias *	la,
		struct in_addr	addr
	)

Definition at line 2034 of file alias_db.c.

References libalias::aliasAddress, CleanupAliasData(), alias_link::la, LIBALIAS_LOCK, LIBALIAS_UNLOCK, libalias::packetAliasMode, PKT_ALIAS_RESET_ON_ADDR_CHANGE, and in_addr::s_addr.

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◆ LibAliasSetAliasPortRange()

void LibAliasSetAliasPortRange	(	struct libalias *	la,
		u_short	port_low,
		u_short	port_high
	)

Definition at line 2046 of file alias_db.c.

References libalias::aliasPortLength, libalias::aliasPortLower, alias_link::la, LIBALIAS_LOCK, and LIBALIAS_UNLOCK.

◆ LibAliasSetFWBase()

void LibAliasSetFWBase	(	struct libalias *	la,
		unsigned int	base,
		unsigned int	num
	)

Definition at line 2437 of file alias_db.c.

References libalias::fireWallBaseNum, libalias::fireWallNumNums, LIBALIAS_LOCK, and LIBALIAS_UNLOCK.

◆ LibAliasSetMode()

unsigned int LibAliasSetMode	(	struct libalias *	la,
		unsigned int	flags,
		unsigned int	mask
	)

Definition at line 2171 of file alias_db.c.

References InitPacketAliasLog(), InitPunchFW(), LIBALIAS_LOCK, LIBALIAS_UNLOCK, libalias::packetAliasMode, PKT_ALIAS_LOG, UninitPacketAliasLog(), and UninitPunchFW().

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◆ LibAliasSetSkinnyPort()

void LibAliasSetSkinnyPort	(	struct libalias *	la,
		unsigned int	port
	)

Definition at line 2448 of file alias_db.c.

References LIBALIAS_LOCK, LIBALIAS_UNLOCK, and libalias::skinnyPort.

◆ LibAliasSetTarget()

void LibAliasSetTarget	(	struct libalias *	la,
		struct in_addr	target_addr
	)

Definition at line 2063 of file alias_db.c.

References alias_link::la, LIBALIAS_LOCK, LIBALIAS_UNLOCK, and libalias::targetAddress.

◆ LibAliasUninit()

void LibAliasUninit ( struct libalias * la )

Definition at line 2152 of file alias_db.c.

References AliasSctpTerm(), CleanupAliasData(), LIBALIAS_LOCK, LIBALIAS_LOCK_DESTROY, LIBALIAS_UNLOCK, UninitPacketAliasLog(), and UninitPunchFW().

Referenced by finishoff().

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◆ LIST_HEAD()

static LIST_HEAD ( MODULE_VERSION( libalias )

static

Definition at line 66 of file alias_db.c.

◆ next_cmd()

static ipfw_insn * next_cmd ( ipfw_insn * cmd )

static

Definition at line 2225 of file alias_db.c.

References F_LEN.

Referenced by fill_cmd().

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◆ PunchFWHole()

void PunchFWHole ( struct alias_link * lnk )

Build rule

Definition at line 2318 of file alias_db.c.

References alias_link::data, fill_rule(), libalias::fireWallActiveNum, libalias::fireWallBaseNum, libalias::fireWallFD, libalias::fireWallField, libalias::fireWallNumNums, fw_setfield, fw_tstfield, tcp_dat::fwhole, GetDestAddress(), GetDestPort(), GetOriginalAddress(), GetOriginalPort(), IPPROTO_IP, IPPROTO_TCP, alias_link::la, LINK_TCP, alias_link::link_type, O_ACCEPT, libalias::packetAliasMode, rule, and alias_link::tcp.

Referenced by alias_pna_out(), alias_rtsp_out(), AliasHandleIrcOut(), NewFtpMessage(), and ReLink().

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◆ ReLink()

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
	)

static

Definition at line 719 of file alias_db.c.

References AddLink(), alias_link::data, DeleteLink(), tcp_dat::fwhole, alias_link::la, LIBALIAS_LOCK_ASSERT, LINK_TCP, alias_link::link_type, PunchFWHole(), and alias_link::tcp.

Referenced by _FindLinkIn(), _FindLinkOut(), and SetDestCallId().

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◆ SeqDiff()

static int SeqDiff	(	u_long	x,
		u_long	y
	)

static

Definition at line 124 of file alias_db.c.

Referenced by GetDeltaAckIn(), and GetDeltaSeqOut().

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◆ SetAckModified()

void SetAckModified ( struct alias_link * lnk )

Definition at line 1545 of file alias_db.c.

References tcp_state::ack_modified, alias_link::data, tcp_dat::state, and alias_link::tcp.

Referenced by alias_rtsp_out(), AliasHandleIrcOut(), NewFtpMessage(), and ProxyEncodeTcpStream().

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◆ SetDefaultAliasAddress()

void SetDefaultAliasAddress	(	struct libalias *	la,
		struct in_addr	alias_addr
	)

Definition at line 1516 of file alias_db.c.

References libalias::aliasAddress, and LIBALIAS_LOCK_ASSERT.

Referenced by LibAliasOutLocked().

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◆ SetDestCallId()

void SetDestCallId	(	struct alias_link *	lnk,
		u_int16_t	cid
	)

Definition at line 1729 of file alias_db.c.

References alias_link::alias_addr, alias_link::alias_port, alias_link::dst_addr, alias_link::la, LIBALIAS_LOCK_ASSERT, alias_link::link_type, ReLink(), alias_link::src_addr, and alias_link::src_port.

Referenced by AliasHandlePptpIn(), and AliasHandlePptpOut().

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◆ SetExpire()

void SetExpire	(	struct alias_link *	lnk,
		int	expire
	)

Definition at line 1699 of file alias_db.c.

References DeleteLink(), expire, alias_link::expire, alias_link::flags, LINK_PERMANENT, and alias_link::time.

Referenced by AliasHandlePptpIn(), AliasHandlePptpOut(), and LibAliasGetFragment().

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◆ SetFragmentAddr()

void SetFragmentAddr	(	struct alias_link *	lnk,
		struct in_addr	src_addr
	)

Definition at line 1397 of file alias_db.c.

References alias_link::data, alias_link::frag_addr, and alias_link::src_addr.

Referenced by LibAliasInLocked().

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◆ SetFragmentPtr()

void SetFragmentPtr	(	struct alias_link *	lnk,
		void *	fptr
	)

Definition at line 1409 of file alias_db.c.

References alias_link::data, and alias_link::frag_ptr.

Referenced by LibAliasGetFragment(), and LibAliasSaveFragment().

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◆ SetProtocolFlags()

void SetProtocolFlags	(	struct alias_link *	lnk,
		int	pflags
	)

Definition at line 1717 of file alias_db.c.

References alias_link::pflags.

Referenced by AliasHandleFtpIn(), and AliasHandleFtpOut().

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◆ SetProxyAddress()

void SetProxyAddress	(	struct alias_link *	lnk,
		struct in_addr	addr
	)

Definition at line 1557 of file alias_db.c.

References alias_link::proxy_addr.

Referenced by TcpAliasOut(), and UdpAliasOut().

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◆ SetProxyPort()

void SetProxyPort	(	struct alias_link *	lnk,
		u_short	port
	)

Definition at line 1569 of file alias_db.c.

References alias_link::proxy_port.

Referenced by TcpAliasOut(), and UdpAliasOut().

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◆ SetStateIn()

void SetStateIn	(	struct alias_link *	lnk,
		int	state
	)

Definition at line 1421 of file alias_db.c.

References ALIAS_TCP_STATE_CONNECTED, ALIAS_TCP_STATE_DISCONNECTED, alias_link::data, alias_link::expire, tcp_state::in, tcp_state::out, state, tcp_dat::state, alias_link::tcp, TCP_EXPIRE_CONNECTED, TCP_EXPIRE_DEAD, TCP_EXPIRE_SINGLEDEAD, and alias_link::time.

Referenced by TcpMonitorIn().

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◆ SetStateOut()

void SetStateOut	(	struct alias_link *	lnk,
		int	state
	)

Definition at line 1446 of file alias_db.c.

References ALIAS_TCP_STATE_CONNECTED, ALIAS_TCP_STATE_DISCONNECTED, alias_link::data, alias_link::expire, tcp_state::in, tcp_state::out, state, tcp_dat::state, alias_link::tcp, TCP_EXPIRE_CONNECTED, TCP_EXPIRE_DEAD, TCP_EXPIRE_SINGLEDEAD, and alias_link::time.

Referenced by TcpMonitorOut().

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◆ ShowAliasStats()

static void ShowAliasStats ( struct libalias * la )

static

Definition at line 157 of file alias_db.c.

References AliasLog(), libalias::fragmentIdLinkCount, libalias::fragmentPtrLinkCount, libalias::icmpLinkCount, LIBALIAS_LOCK_ASSERT, libalias::logDesc, libalias::pptpLinkCount, libalias::protoLinkCount, libalias::sctpLinkCount, libalias::sockCount, libalias::tcpLinkCount, and libalias::udpLinkCount.

Referenced by AddLink(), DeleteLink(), and SctpShowAliasStats().

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◆ SPLAY_GENERATE() [1/2]

SPLAY_GENERATE	(	splay_in	,
		group_in	,
		in	,
		cmp_in
	)

◆ SPLAY_GENERATE() [2/2]

SPLAY_GENERATE	(	splay_out	,
		alias_link	,
		all.	out,
		cmp_out
	)

◆ StartPointIn()

static struct group_in * StartPointIn	(	struct libalias *	la,
		struct in_addr	alias_addr,
		u_short	alias_port,
		int	link_type,
		int	create
	)

static

Definition at line 100 of file alias_db.c.

References group_in::alias_addr, group_in::alias_port, group_in::link_type, and group_in::partial.

Referenced by _FindLinkIn(), AddLink(), DeleteLink(), and GetNewPort().

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◆ UninitPacketAliasLog()

static void UninitPacketAliasLog ( struct libalias * la )

static

Definition at line 1819 of file alias_db.c.

References alias_link::la, LIBALIAS_LOCK_ASSERT, libalias::logDesc, and libalias::packetAliasMode.

Referenced by LibAliasSetMode(), and LibAliasUninit().

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◆ UninitPunchFW()

static void UninitPunchFW ( struct libalias * la )

static

Definition at line 2304 of file alias_db.c.

References ClearAllFWHoles(), libalias::fireWallFD, libalias::fireWallField, and libalias::packetAliasMode.

Referenced by LibAliasSetMode(), and LibAliasUninit().

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◆ UseLink()

static struct alias_link * UseLink	(	struct libalias *	la,
		struct alias_link *	lnk
	)

static

Definition at line 453 of file alias_db.c.

References CleanupLink(), alias_link::la, LibAliasTime, and alias_link::timestamp.

Referenced by _FindLinkIn(), _SearchLinkOut(), FindPptpInByCallId(), FindPptpOutByCallId(), and FindPptpOutByPeerCallId().

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Variable Documentation

◆ alias_mod

moduledata_t alias_mod

static

Initial value:

= {
       "alias", alias_mod_handler, NULL
}

Definition at line 89 of file alias_db.c.

Functions

Variables

Function Documentation

◆ __FBSDID()

◆ _FindLinkIn()

◆ _FindLinkOut()

◆ _RandomPort()

◆ _SearchLinkOut()

◆ AddFragmentPtrLink()

◆ AddLink()

◆ AddPptp()

◆ AddSeq()

◆ AliasLog()

◆ CleanupAliasData()

◆ CleanupLink()

◆ ClearAllFWHoles()

◆ ClearFWHole()

◆ DECLARE_MODULE()

◆ DeleteLink()

◆ fill_cmd()

◆ fill_ip()

◆ fill_one_port()

◆ fill_rule()

◆ FindAliasAddress()

◆ FindFragmentIn1()

◆ FindFragmentIn2()

◆ FindFragmentPtr()

◆ FindIcmpIn()

◆ FindIcmpOut()

◆ FindLinkIn()

◆ FindLinkOut()

◆ FindNewPortGroup()

◆ FindOriginalAddress()

◆ FindPptpInByCallId()

◆ FindPptpInByPeerCallId()

◆ FindPptpOutByCallId()

◆ FindPptpOutByPeerCallId()

◆ FindProtoIn()

◆ FindProtoOut()

◆ FindRtspOut()

◆ FindSctpRedirectAddress()

◆ FindUdpTcpIn()

◆ FindUdpTcpOut()

◆ finishoff()

◆ GetAckModified()

◆ GetAliasAddress()

◆ GetAliasPort()

◆ GetDefaultAliasAddress()

◆ GetDeltaAckIn()

◆ GetDeltaSeqOut()

◆ GetDestAddress()

◆ GetDestPort()

◆ GetFragmentAddr()

◆ GetFragmentPtr()

◆ GetNewPort()

◆ GetOriginalAddress()

◆ GetOriginalPort()

◆ GetProtocolFlags()

◆ GetProxyAddress()

◆ GetProxyPort()

◆ GetSocket()

◆ GetStateIn()

◆ GetStateOut()

◆ HouseKeeping()

◆ InitPacketAliasLog()

◆ InitPunchFW()

◆ LibAliasAddServer()

◆ LibAliasInit()

◆ LibAliasRedirectAddr()

◆ LibAliasRedirectDelete()

◆ LibAliasRedirectDynamic()

◆ LibAliasRedirectPort()

◆ LibAliasRedirectProto()

◆ LibAliasSetAddress()

◆ LibAliasSetAliasPortRange()

◆ LibAliasSetFWBase()

◆ LibAliasSetMode()

◆ LibAliasSetSkinnyPort()

◆ LibAliasSetTarget()

◆ LibAliasUninit()