#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/ctype.h>
#include <sys/libkern.h>
#include <sys/limits.h>
#include <netinet/tcp.h>
#include <netinet/libalias/alias.h>
#include <netinet/libalias/alias_local.h>
#include <netinet/libalias/alias_mod.h>

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Data Structures
struct	proxy_entry

Macros
#define	PROXY_TYPE_ENCODE_NONE 1

#define	PROXY_TYPE_ENCODE_TCPSTREAM 2

#define	PROXY_TYPE_ENCODE_IPHDR 3

#define	OPTION_LEN_BYTES 8

#define	OPTION_LEN_INT16 4

#define	OPTION_LEN_INT32 2

#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

Functions
	__FBSDID ("$FreeBSD$")

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)

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, int maxpacketsize, int proxy_type)

int	LibAliasProxyRule (struct libalias la, const char cmd)

Macro Definition Documentation

◆ OPTION_LEN_BYTES

#define OPTION_LEN_BYTES 8

◆ OPTION_LEN_INT16

#define OPTION_LEN_INT16 4

◆ OPTION_LEN_INT32

#define OPTION_LEN_INT32 2

◆ PROXY_TYPE_ENCODE_IPHDR

#define PROXY_TYPE_ENCODE_IPHDR 3

Definition at line 96 of file alias_proxy.c.

◆ PROXY_TYPE_ENCODE_NONE

#define PROXY_TYPE_ENCODE_NONE 1

Definition at line 94 of file alias_proxy.c.

◆ PROXY_TYPE_ENCODE_TCPSTREAM

#define PROXY_TYPE_ENCODE_TCPSTREAM 2

Definition at line 95 of file alias_proxy.c.

◆ STATE_READ_DELETE

#define STATE_READ_DELETE 5

◆ STATE_READ_DST

#define STATE_READ_DST 8

◆ STATE_READ_KEYWORD

#define STATE_READ_KEYWORD 0

◆ STATE_READ_PORT

#define STATE_READ_PORT 2

◆ STATE_READ_PROTO

#define STATE_READ_PROTO 6

◆ STATE_READ_RULE

#define STATE_READ_RULE 4

◆ STATE_READ_SERVER

#define STATE_READ_SERVER 3

◆ STATE_READ_SRC

#define STATE_READ_SRC 7

◆ STATE_READ_TYPE

#define STATE_READ_TYPE 1

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ IpAddr()

static int IpAddr	(	char *	s,
		struct in_addr *	addr
	)

static

Definition at line 164 of file alias_proxy.c.

References inet_aton().

Referenced by LibAliasProxyRule().

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◆ IpMask()

static int IpMask	(	int	nbits,
		struct in_addr *	mask
	)

static

Definition at line 147 of file alias_proxy.c.

References in_addr::s_addr.

Referenced by LibAliasProxyRule().

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◆ IpPort()

static int IpPort	(	char *	s,
		int	proto,
		int *	port
	)

static

Definition at line 173 of file alias_proxy.c.

References IPPROTO_TCP, and IPPROTO_UDP.

Referenced by LibAliasProxyRule().

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◆ LibAliasProxyRule()

int LibAliasProxyRule	(	struct libalias *	la,
		const char *	cmd
	)

Definition at line 539 of file alias_proxy.c.

References proxy_entry::dst_addr, proxy_entry::dst_mask, IpAddr(), IpMask(), IpPort(), IPPROTO_TCP, IPPROTO_UDP, proxy_entry::la, LIBALIAS_LOCK, LIBALIAS_UNLOCK, proxy_entry::proto, proxy_entry::proxy_port, proxy_entry::proxy_type, PROXY_TYPE_ENCODE_IPHDR, PROXY_TYPE_ENCODE_NONE, PROXY_TYPE_ENCODE_TCPSTREAM, proxy_entry::rule_index, RuleAdd(), RuleNumberDelete(), in_addr::s_addr, proxy_entry::server_addr, proxy_entry::server_port, proxy_entry::src_addr, proxy_entry::src_mask, state, STATE_READ_DELETE, STATE_READ_DST, STATE_READ_KEYWORD, STATE_READ_PORT, STATE_READ_PROTO, STATE_READ_RULE, STATE_READ_SERVER, STATE_READ_SRC, and STATE_READ_TYPE.

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◆ ProxyCheck()

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
	)