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Tunnel timeouts are used when TCP connections are forwarded, or when forwarding upgraded HTTP connections (WebSocket) as well as CONNECT requests to proxies. This timeout allows long-lived sessions to be supported without having to set large timeouts to normal requests.
124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
/*
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* include/proto/proxy.h
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* This file defines function prototypes for proxy management.
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*
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* Copyright (C) 2000-2011 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_PROXY_H
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#define _PROTO_PROXY_H
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#include <common/config.h>
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#include <common/ticks.h>
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#include <common/time.h>
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#include <types/global.h>
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#include <types/proxy.h>
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#include <proto/freq_ctr.h>
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int start_proxies(int verbose);
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struct task *manage_proxy(struct task *t);
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void soft_stop(void);
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int pause_proxy(struct proxy *p);
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int resume_proxy(struct proxy *p);
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void stop_proxy(struct proxy *p);
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void pause_proxies(void);
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void resume_proxies(void);
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int session_set_backend(struct session *s, struct proxy *be);
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const char *proxy_cap_str(int cap);
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const char *proxy_mode_str(int mode);
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struct proxy *findproxy_mode(const char *name, int mode, int cap);
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struct proxy *findproxy(const char *name, int cap);
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struct server *findserver(const struct proxy *px, const char *name);
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int proxy_cfg_ensure_no_http(struct proxy *curproxy);
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void init_new_proxy(struct proxy *p);
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int get_backend_server(const char *bk_name, const char *sv_name,
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struct proxy **bk, struct server **sv);
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/*
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* This function returns a string containing the type of the proxy in a format
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* suitable for error messages, from its capabilities.
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*/
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static inline const char *proxy_type_str(struct proxy *proxy)
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{
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return proxy_cap_str(proxy->cap);
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}
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/* this function initializes all timeouts for proxy p */
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static inline void proxy_reset_timeouts(struct proxy *proxy)
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{
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proxy->timeout.client = TICK_ETERNITY;
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proxy->timeout.tarpit = TICK_ETERNITY;
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proxy->timeout.queue = TICK_ETERNITY;
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proxy->timeout.connect = TICK_ETERNITY;
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proxy->timeout.server = TICK_ETERNITY;
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proxy->timeout.appsession = TICK_ETERNITY;
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proxy->timeout.httpreq = TICK_ETERNITY;
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proxy->timeout.check = TICK_ETERNITY;
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proxy->timeout.tunnel = TICK_ETERNITY;
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}
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/* increase the number of cumulated connections received on the designated frontend */
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static void inline proxy_inc_fe_conn_ctr(struct listener *l, struct proxy *fe)
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{
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fe->fe_counters.cum_conn++;
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if (l->counters)
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l->counters->cum_conn++;
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update_freq_ctr(&fe->fe_conn_per_sec, 1);
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if (fe->fe_conn_per_sec.curr_ctr > fe->fe_counters.cps_max)
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fe->fe_counters.cps_max = fe->fe_conn_per_sec.curr_ctr;
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}
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/* increase the number of cumulated connections accepted by the designated frontend */
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static void inline proxy_inc_fe_sess_ctr(struct listener *l, struct proxy *fe)
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{
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fe->fe_counters.cum_sess++;
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if (l->counters)
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l->counters->cum_sess++;
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update_freq_ctr(&fe->fe_sess_per_sec, 1);
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if (fe->fe_sess_per_sec.curr_ctr > fe->fe_counters.sps_max)
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fe->fe_counters.sps_max = fe->fe_sess_per_sec.curr_ctr;
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}
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/* increase the number of cumulated connections on the designated backend */
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static void inline proxy_inc_be_ctr(struct proxy *be)
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{
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be->be_counters.cum_conn++;
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update_freq_ctr(&be->be_sess_per_sec, 1);
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if (be->be_sess_per_sec.curr_ctr > be->be_counters.sps_max)
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be->be_counters.sps_max = be->be_sess_per_sec.curr_ctr;
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}
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/* increase the number of cumulated requests on the designated frontend */
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static void inline proxy_inc_fe_req_ctr(struct proxy *fe)
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{
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fe->fe_counters.p.http.cum_req++;
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update_freq_ctr(&fe->fe_req_per_sec, 1);
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if (fe->fe_req_per_sec.curr_ctr > fe->fe_counters.p.http.rps_max)
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fe->fe_counters.p.http.rps_max = fe->fe_req_per_sec.curr_ctr;
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}
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#endif /* _PROTO_PROXY_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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