103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
/*
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* include/proto/proto_tcp.h
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* This file contains TCP socket protocol definitions.
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*
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* Copyright (C) 2000-2013 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_PROTO_TCP_H
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#define _PROTO_PROTO_TCP_H
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#include <common/config.h>
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#include <types/proto_tcp.h>
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#include <types/task.h>
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#include <proto/stick_table.h>
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int tcp_bind_socket(int fd, int flags, struct sockaddr_storage *local, struct sockaddr_storage *remote);
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void tcpv4_add_listener(struct listener *listener);
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void tcpv6_add_listener(struct listener *listener);
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int tcp_pause_listener(struct listener *l);
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int tcp_connect_server(struct connection *conn, int data, int delack);
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int tcp_connect_probe(struct connection *conn);
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int tcp_get_src(int fd, struct sockaddr *sa, socklen_t salen, int dir);
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int tcp_get_dst(int fd, struct sockaddr *sa, socklen_t salen, int dir);
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int tcp_drain(int fd);
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int tcp_inspect_request(struct session *s, struct channel *req, int an_bit);
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int tcp_inspect_response(struct session *s, struct channel *rep, int an_bit);
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int tcp_exec_req_rules(struct session *s);
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/* Converts the INET/INET6 source address to a stick_table key usable for table
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* lookups. <type> can be STKTABLE_TYPE_IP or STKTABLE_TYPE_IPV6. The function
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* try to convert the incoming IP to the type expected by the sticktable.
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* Returns either NULL if the source cannot be converted (eg: not IPv4) or a
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* pointer to the converted result in static_table_key in the appropriate format
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* (IP).
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*/
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static inline struct stktable_key *addr_to_stktable_key(struct sockaddr_storage *addr, long type)
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{
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switch (addr->ss_family) {
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case AF_INET:
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/* Convert IPv4 to IPv4 key. */
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if (type == STKTABLE_TYPE_IP) {
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static_table_key->key = (void *)&((struct sockaddr_in *)addr)->sin_addr;
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break;
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}
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/* Convert IPv4 to IPv6 key. */
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if (type == STKTABLE_TYPE_IPV6) {
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v4tov6(&static_table_key->data.ipv6, &((struct sockaddr_in *)addr)->sin_addr);
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static_table_key->key = &static_table_key->data.ipv6;
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break;
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}
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return NULL;
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case AF_INET6:
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/* Convert IPv6 to IPv4 key. This conversion can be failed. */
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if (type == STKTABLE_TYPE_IP) {
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if (!v6tov4(&static_table_key->data.ip, &((struct sockaddr_in6 *)addr)->sin6_addr))
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return NULL;
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static_table_key->key = &static_table_key->data.ip;
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break;
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}
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/* Convert IPv6 to IPv6 key. */
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if (type == STKTABLE_TYPE_IPV6) {
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static_table_key->key = (void *)&((struct sockaddr_in6 *)addr)->sin6_addr;
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break;
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}
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return NULL;
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default:
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return NULL;
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}
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return static_table_key;
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}
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/* for a tcp-request action TCP_ACT_TRK_*, return a tracking index starting at
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* zero for SC0. Unknown actions also return zero.
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*/
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static inline int tcp_trk_idx(int trk_action)
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{
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return trk_action - TCP_ACT_TRK_SC0;
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}
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#endif /* _PROTO_PROTO_TCP_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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