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9ba2dcc86c
This patch adds the ability to set a pointer in the session to an entry in a stick table which holds various counters related to a specific pattern. Right now the syntax matches the target syntax and only the "src" pattern can be specified, to track counters related to the session's IPv4 source address. There is a special function to extract it and convert it to a key. But the goal is to be able to later support as many patterns as for the stick rules, and get rid of the specific function. The "track-counters" directive may only be set in a "tcp-request" statement right now. Only the first one applies. Probably that later we'll support multi-criteria tracking for a single session and that we'll have to name tracking pointers. No counter is updated right now, only the refcount is. Some subsequent patches will have to bring that feature.
65 lines
2.2 KiB
C
65 lines
2.2 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) 2000-2010 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 tcpv4_bind_socket(int fd, int flags, struct sockaddr_in *local, struct sockaddr_in *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_bind_listener(struct listener *listener, char *errmsg, int errlen);
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int tcpv4_connect_server(struct stream_interface *si,
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struct proxy *be, struct server *srv,
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struct sockaddr *srv_addr, struct sockaddr *from_addr);
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int tcp_inspect_request(struct session *s, struct buffer *req, int an_bit);
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int tcp_persist_rdp_cookie(struct session *s, struct buffer *req, int an_bit);
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int tcp_exec_req_rules(struct session *s);
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/* Converts the TCPv4 source address to a stick_table key usable for table
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* lookups. Returns either NULL if the source cannot be converted (eg: not
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* IPv4) or a pointer to the converted result in static_table_key in the
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* appropriate format (IP).
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*/
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static inline struct stktable_key *tcpv4_src_to_stktable_key(struct session *s)
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{
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/* right now we only support IPv4 */
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if (s->cli_addr.ss_family != AF_INET)
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return NULL;
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static_table_key.key = (void *)&((struct sockaddr_in *)&s->cli_addr)->sin_addr;
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return &static_table_key;
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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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