Willy Tarreau | e6b9894 | 2007-10-29 01:09:36 +0100 | [diff] [blame] | 1 | /* |
Willy Tarreau | b1d6774 | 2010-03-29 19:36:59 +0200 | [diff] [blame] | 2 | * include/proto/proto_tcp.h |
| 3 | * This file contains TCP socket protocol definitions. |
| 4 | * |
Willy Tarreau | d4c33c8 | 2013-01-07 21:59:07 +0100 | [diff] [blame] | 5 | * Copyright (C) 2000-2013 Willy Tarreau - w@1wt.eu |
Willy Tarreau | b1d6774 | 2010-03-29 19:36:59 +0200 | [diff] [blame] | 6 | * |
| 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 Tarreau | e6b9894 | 2007-10-29 01:09:36 +0100 | [diff] [blame] | 21 | |
| 22 | #ifndef _PROTO_PROTO_TCP_H |
| 23 | #define _PROTO_PROTO_TCP_H |
| 24 | |
| 25 | #include <common/config.h> |
Willy Tarreau | e6b9894 | 2007-10-29 01:09:36 +0100 | [diff] [blame] | 26 | #include <types/task.h> |
Willy Tarreau | 9ba2dcc | 2010-06-14 21:04:55 +0200 | [diff] [blame] | 27 | #include <proto/stick_table.h> |
Willy Tarreau | e6b9894 | 2007-10-29 01:09:36 +0100 | [diff] [blame] | 28 | |
David du Colombier | 6f5ccb1 | 2011-03-10 22:26:24 +0100 | [diff] [blame] | 29 | int tcp_bind_socket(int fd, int flags, struct sockaddr_storage *local, struct sockaddr_storage *remote); |
Willy Tarreau | e6b9894 | 2007-10-29 01:09:36 +0100 | [diff] [blame] | 30 | void tcpv4_add_listener(struct listener *listener); |
| 31 | void tcpv6_add_listener(struct listener *listener); |
Willy Tarreau | 092d865 | 2014-07-07 20:22:12 +0200 | [diff] [blame] | 32 | int tcp_pause_listener(struct listener *l); |
Willy Tarreau | f0837b2 | 2012-11-24 10:24:27 +0100 | [diff] [blame] | 33 | int tcp_connect_server(struct connection *conn, int data, int delack); |
Willy Tarreau | 239d718 | 2012-07-23 18:53:03 +0200 | [diff] [blame] | 34 | int tcp_connect_probe(struct connection *conn); |
Willy Tarreau | 59b9479 | 2012-05-11 16:16:40 +0200 | [diff] [blame] | 35 | int tcp_get_src(int fd, struct sockaddr *sa, socklen_t salen, int dir); |
| 36 | int tcp_get_dst(int fd, struct sockaddr *sa, socklen_t salen, int dir); |
Willy Tarreau | 2b57cb8 | 2013-06-10 19:56:38 +0200 | [diff] [blame] | 37 | int tcp_drain(int fd); |
Willy Tarreau | 87b0966 | 2015-04-03 00:22:06 +0200 | [diff] [blame] | 38 | int tcp_inspect_request(struct stream *s, struct channel *req, int an_bit); |
| 39 | int tcp_inspect_response(struct stream *s, struct channel *rep, int an_bit); |
Willy Tarreau | e73ef85 | 2015-04-04 16:41:45 +0200 | [diff] [blame] | 40 | int tcp_exec_req_rules(struct session *sess); |
Willy Tarreau | e6b9894 | 2007-10-29 01:09:36 +0100 | [diff] [blame] | 41 | |
Thierry FOURNIER | cc87a11 | 2014-12-12 19:41:33 +0100 | [diff] [blame] | 42 | /* TCP keywords. */ |
Thierry FOURNIER | 36481b8 | 2015-08-19 09:01:53 +0200 | [diff] [blame] | 43 | void tcp_req_conn_keywords_register(struct action_kw_list *kw_list); |
| 44 | void tcp_req_cont_keywords_register(struct action_kw_list *kw_list); |
| 45 | void tcp_res_cont_keywords_register(struct action_kw_list *kw_list); |
Thierry FOURNIER | cc87a11 | 2014-12-12 19:41:33 +0100 | [diff] [blame] | 46 | |
Thierry FOURNIER | a123ad8 | 2015-07-24 09:12:15 +0200 | [diff] [blame] | 47 | /* Export some samples. */ |
| 48 | int smp_fetch_src(const struct arg *args, struct sample *smp, const char *kw, void *private); |
| 49 | |
Willy Tarreau | 64ee491 | 2012-08-30 22:59:48 +0200 | [diff] [blame] | 50 | /* Converts the INET/INET6 source address to a stick_table key usable for table |
Thierry FOURNIER | 5d24ebc | 2015-07-24 08:46:42 +0200 | [diff] [blame^] | 51 | * lookups. <type> can be SMP_T_IPV4 or SMP_T_IPV6. The function |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 52 | * try to convert the incoming IP to the type expected by the sticktable. |
| 53 | * Returns either NULL if the source cannot be converted (eg: not IPv4) or a |
| 54 | * pointer to the converted result in static_table_key in the appropriate format |
| 55 | * (IP). |
Willy Tarreau | 9ba2dcc | 2010-06-14 21:04:55 +0200 | [diff] [blame] | 56 | */ |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 57 | static inline struct stktable_key *addr_to_stktable_key(struct sockaddr_storage *addr, long type) |
Willy Tarreau | 9ba2dcc | 2010-06-14 21:04:55 +0200 | [diff] [blame] | 58 | { |
Willy Tarreau | 64ee491 | 2012-08-30 22:59:48 +0200 | [diff] [blame] | 59 | switch (addr->ss_family) { |
David du Colombier | 4f92d32 | 2011-03-24 11:09:31 +0100 | [diff] [blame] | 60 | case AF_INET: |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 61 | /* Convert IPv4 to IPv4 key. */ |
Thierry FOURNIER | 5d24ebc | 2015-07-24 08:46:42 +0200 | [diff] [blame^] | 62 | if (type == SMP_T_IPV4) { |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 63 | static_table_key->key = (void *)&((struct sockaddr_in *)addr)->sin_addr; |
| 64 | break; |
| 65 | } |
| 66 | /* Convert IPv4 to IPv6 key. */ |
Thierry FOURNIER | 5d24ebc | 2015-07-24 08:46:42 +0200 | [diff] [blame^] | 67 | if (type == SMP_T_IPV6) { |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 68 | v4tov6(&static_table_key->data.ipv6, &((struct sockaddr_in *)addr)->sin_addr); |
| 69 | static_table_key->key = &static_table_key->data.ipv6; |
| 70 | break; |
| 71 | } |
| 72 | return NULL; |
| 73 | |
David du Colombier | 4f92d32 | 2011-03-24 11:09:31 +0100 | [diff] [blame] | 74 | case AF_INET6: |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 75 | /* Convert IPv6 to IPv4 key. This conversion can be failed. */ |
Thierry FOURNIER | 5d24ebc | 2015-07-24 08:46:42 +0200 | [diff] [blame^] | 76 | if (type == SMP_T_IPV4) { |
Thierry FOURNIER | bc8c404 | 2015-08-10 17:53:45 +0200 | [diff] [blame] | 77 | if (!v6tov4(&static_table_key->data.ipv4, &((struct sockaddr_in6 *)addr)->sin6_addr)) |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 78 | return NULL; |
Thierry FOURNIER | bc8c404 | 2015-08-10 17:53:45 +0200 | [diff] [blame] | 79 | static_table_key->key = &static_table_key->data.ipv4; |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 80 | break; |
| 81 | } |
| 82 | /* Convert IPv6 to IPv6 key. */ |
Thierry FOURNIER | 5d24ebc | 2015-07-24 08:46:42 +0200 | [diff] [blame^] | 83 | if (type == SMP_T_IPV6) { |
Thierry FOURNIER | 74c219d | 2014-04-14 14:35:40 +0200 | [diff] [blame] | 84 | static_table_key->key = (void *)&((struct sockaddr_in6 *)addr)->sin6_addr; |
| 85 | break; |
| 86 | } |
| 87 | return NULL; |
Willy Tarreau | c3a08a1 | 2012-08-30 22:52:28 +0200 | [diff] [blame] | 88 | default: |
| 89 | return NULL; |
David du Colombier | 4f92d32 | 2011-03-24 11:09:31 +0100 | [diff] [blame] | 90 | } |
Willy Tarreau | 0711541 | 2012-10-29 21:56:59 +0100 | [diff] [blame] | 91 | return static_table_key; |
Willy Tarreau | 9ba2dcc | 2010-06-14 21:04:55 +0200 | [diff] [blame] | 92 | } |
| 93 | |
Thierry FOURNIER | 0ea5c7f | 2015-08-05 19:05:19 +0200 | [diff] [blame] | 94 | /* for a tcp-request action ACT_TCP_TRK_*, return a tracking index starting at |
Willy Tarreau | 34c2fb6 | 2013-12-02 23:29:05 +0100 | [diff] [blame] | 95 | * zero for SC0. Unknown actions also return zero. |
Willy Tarreau | d5ca9ab | 2013-05-28 17:40:25 +0200 | [diff] [blame] | 96 | */ |
| 97 | static inline int tcp_trk_idx(int trk_action) |
| 98 | { |
Thierry FOURNIER | 0ea5c7f | 2015-08-05 19:05:19 +0200 | [diff] [blame] | 99 | return trk_action - ACT_ACTION_TRK_SC0; |
Willy Tarreau | d5ca9ab | 2013-05-28 17:40:25 +0200 | [diff] [blame] | 100 | } |
Willy Tarreau | 9ba2dcc | 2010-06-14 21:04:55 +0200 | [diff] [blame] | 101 | |
Willy Tarreau | e6b9894 | 2007-10-29 01:09:36 +0100 | [diff] [blame] | 102 | #endif /* _PROTO_PROTO_TCP_H */ |
| 103 | |
| 104 | /* |
| 105 | * Local variables: |
| 106 | * c-indent-level: 8 |
| 107 | * c-basic-offset: 8 |
| 108 | * End: |
| 109 | */ |