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Willy Tarreaue6b98942007-10-29 01:09:36 +01001/*
Willy Tarreaub1d67742010-03-29 19:36:59 +02002 * include/proto/proto_tcp.h
3 * This file contains TCP socket protocol definitions.
4 *
Willy Tarreaud4c33c82013-01-07 21:59:07 +01005 * Copyright (C) 2000-2013 Willy Tarreau - w@1wt.eu
Willy Tarreaub1d67742010-03-29 19:36:59 +02006 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation, version 2.1
10 * exclusively.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
Willy Tarreaue6b98942007-10-29 01:09:36 +010021
22#ifndef _PROTO_PROTO_TCP_H
23#define _PROTO_PROTO_TCP_H
24
25#include <common/config.h>
Willy Tarreaub6866442008-07-14 23:54:42 +020026#include <types/proto_tcp.h>
Willy Tarreaue6b98942007-10-29 01:09:36 +010027#include <types/task.h>
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +020028#include <proto/stick_table.h>
Willy Tarreaue6b98942007-10-29 01:09:36 +010029
David du Colombier6f5ccb12011-03-10 22:26:24 +010030int tcp_bind_socket(int fd, int flags, struct sockaddr_storage *local, struct sockaddr_storage *remote);
Willy Tarreaue6b98942007-10-29 01:09:36 +010031void tcpv4_add_listener(struct listener *listener);
32void tcpv6_add_listener(struct listener *listener);
Willy Tarreaud903bb32014-07-07 20:22:12 +020033int tcp_pause_listener(struct listener *l);
Willy Tarreauf0837b22012-11-24 10:24:27 +010034int tcp_connect_server(struct connection *conn, int data, int delack);
Willy Tarreau239d7182012-07-23 18:53:03 +020035int tcp_connect_probe(struct connection *conn);
Willy Tarreau59b94792012-05-11 16:16:40 +020036int tcp_get_src(int fd, struct sockaddr *sa, socklen_t salen, int dir);
37int tcp_get_dst(int fd, struct sockaddr *sa, socklen_t salen, int dir);
Willy Tarreau2b57cb82013-06-10 19:56:38 +020038int tcp_drain(int fd);
Willy Tarreau7421efb2012-07-02 15:11:27 +020039int tcp_inspect_request(struct session *s, struct channel *req, int an_bit);
40int tcp_inspect_response(struct session *s, struct channel *rep, int an_bit);
Willy Tarreaua5c0ab22010-05-31 10:30:33 +020041int tcp_exec_req_rules(struct session *s);
Willy Tarreaue6b98942007-10-29 01:09:36 +010042
Willy Tarreau64ee4912012-08-30 22:59:48 +020043/* Converts the INET/INET6 source address to a stick_table key usable for table
Thierry FOURNIER74c219d2014-04-14 14:35:40 +020044 * lookups. <type> can be STKTABLE_TYPE_IP or STKTABLE_TYPE_IPV6. The function
45 * try to convert the incoming IP to the type expected by the sticktable.
46 * Returns either NULL if the source cannot be converted (eg: not IPv4) or a
47 * pointer to the converted result in static_table_key in the appropriate format
48 * (IP).
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +020049 */
Thierry FOURNIER74c219d2014-04-14 14:35:40 +020050static inline struct stktable_key *addr_to_stktable_key(struct sockaddr_storage *addr, long type)
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +020051{
Willy Tarreau64ee4912012-08-30 22:59:48 +020052 switch (addr->ss_family) {
David du Colombier4f92d322011-03-24 11:09:31 +010053 case AF_INET:
Thierry FOURNIER74c219d2014-04-14 14:35:40 +020054 /* Convert IPv4 to IPv4 key. */
55 if (type == STKTABLE_TYPE_IP) {
56 static_table_key->key = (void *)&((struct sockaddr_in *)addr)->sin_addr;
57 break;
58 }
59 /* Convert IPv4 to IPv6 key. */
60 if (type == STKTABLE_TYPE_IPV6) {
61 v4tov6(&static_table_key->data.ipv6, &((struct sockaddr_in *)addr)->sin_addr);
62 static_table_key->key = &static_table_key->data.ipv6;
63 break;
64 }
65 return NULL;
66
David du Colombier4f92d322011-03-24 11:09:31 +010067 case AF_INET6:
Thierry FOURNIER74c219d2014-04-14 14:35:40 +020068 /* Convert IPv6 to IPv4 key. This conversion can be failed. */
69 if (type == STKTABLE_TYPE_IP) {
70 if (!v6tov4(&static_table_key->data.ip, &((struct sockaddr_in6 *)addr)->sin6_addr))
71 return NULL;
72 static_table_key->key = &static_table_key->data.ip;
73 break;
74 }
75 /* Convert IPv6 to IPv6 key. */
76 if (type == STKTABLE_TYPE_IPV6) {
77 static_table_key->key = (void *)&((struct sockaddr_in6 *)addr)->sin6_addr;
78 break;
79 }
80 return NULL;
Willy Tarreauc3a08a12012-08-30 22:52:28 +020081 default:
82 return NULL;
David du Colombier4f92d322011-03-24 11:09:31 +010083 }
Willy Tarreau07115412012-10-29 21:56:59 +010084 return static_table_key;
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +020085}
86
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +020087/* for a tcp-request action TCP_ACT_TRK_*, return a tracking index starting at
Willy Tarreau34c2fb62013-12-02 23:29:05 +010088 * zero for SC0. Unknown actions also return zero.
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +020089 */
90static inline int tcp_trk_idx(int trk_action)
91{
Willy Tarreaube4a3ef2013-06-17 15:04:07 +020092 return trk_action - TCP_ACT_TRK_SC0;
Willy Tarreaud5ca9ab2013-05-28 17:40:25 +020093}
Willy Tarreau9ba2dcc2010-06-14 21:04:55 +020094
Willy Tarreaue6b98942007-10-29 01:09:36 +010095#endif /* _PROTO_PROTO_TCP_H */
96
97/*
98 * Local variables:
99 * c-indent-level: 8
100 * c-basic-offset: 8
101 * End:
102 */