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Willy Tarreaub1ec8c42015-04-03 13:53:24 +02001/*
Willy Tarreau9903f0e2015-04-04 18:50:31 +02002 * Session management functions.
Willy Tarreaub1ec8c42015-04-03 13:53:24 +02003 *
Willy Tarreau9903f0e2015-04-04 18:50:31 +02004 * Copyright 2000-2015 Willy Tarreau <w@1wt.eu>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#include <common/config.h>
14#include <common/buffer.h>
15#include <common/debug.h>
Willy Tarreau35b51c62018-09-10 15:38:55 +020016#include <common/http.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +020017#include <common/memory.h>
18
19#include <types/global.h>
20#include <types/session.h>
21
Willy Tarreau9903f0e2015-04-04 18:50:31 +020022#include <proto/connection.h>
23#include <proto/listener.h>
24#include <proto/log.h>
Willy Tarreau9903f0e2015-04-04 18:50:31 +020025#include <proto/proxy.h>
Willy Tarreaubb2ef122015-04-04 16:31:16 +020026#include <proto/session.h>
Willy Tarreau9903f0e2015-04-04 18:50:31 +020027#include <proto/stream.h>
Willy Tarreau39713102016-11-25 15:49:32 +010028#include <proto/tcp_rules.h>
Willy Tarreauebcd4842015-06-19 11:59:02 +020029#include <proto/vars.h>
Willy Tarreaubb2ef122015-04-04 16:31:16 +020030
Willy Tarreau8ceae722018-11-26 11:58:30 +010031DECLARE_POOL(pool_head_session, "session", sizeof(struct session));
Olivier Houchard351411f2018-12-27 17:20:54 +010032DECLARE_POOL(pool_head_sess_srv_list, "session server list",
33 sizeof(struct sess_srv_list));
Willy Tarreaub1ec8c42015-04-03 13:53:24 +020034
Willy Tarreau9903f0e2015-04-04 18:50:31 +020035static int conn_complete_session(struct connection *conn);
Olivier Houchard9f6af332018-05-25 14:04:04 +020036static struct task *session_expire_embryonic(struct task *t, void *context, unsigned short state);
Willy Tarreau9903f0e2015-04-04 18:50:31 +020037
Willy Tarreauc38f71c2015-04-05 00:38:48 +020038/* Create a a new session and assign it to frontend <fe>, listener <li>,
39 * origin <origin>, set the current date and clear the stick counters pointers.
40 * Returns the session upon success or NULL. The session may be released using
Willy Tarreau0bf6fa52017-09-15 10:25:14 +020041 * session_free(). Note: <li> may be NULL.
Willy Tarreauc38f71c2015-04-05 00:38:48 +020042 */
43struct session *session_new(struct proxy *fe, struct listener *li, enum obj_type *origin)
44{
45 struct session *sess;
46
Willy Tarreaubafbe012017-11-24 17:34:44 +010047 sess = pool_alloc(pool_head_session);
Willy Tarreauc38f71c2015-04-05 00:38:48 +020048 if (sess) {
49 sess->listener = li;
50 sess->fe = fe;
51 sess->origin = origin;
52 sess->accept_date = date; /* user-visible date for logging */
53 sess->tv_accept = now; /* corrected date for internal use */
54 memset(sess->stkctr, 0, sizeof(sess->stkctr));
Willy Tarreauebcd4842015-06-19 11:59:02 +020055 vars_init(&sess->vars, SCOPE_SESS);
Willy Tarreau0b74eae2017-08-28 19:02:51 +020056 sess->task = NULL;
Willy Tarreau590a0512018-09-05 11:56:48 +020057 sess->t_handshake = -1; /* handshake not done yet */
Olivier Houchardd5b3d302019-03-08 18:54:34 +010058 _HA_ATOMIC_ADD(&totalconn, 1);
59 _HA_ATOMIC_ADD(&jobs, 1);
Olivier Houchard351411f2018-12-27 17:20:54 +010060 LIST_INIT(&sess->srv_list);
Olivier Houcharda2dbeb22018-12-28 18:50:57 +010061 sess->idle_conns = 0;
Olivier Houchard250031e2019-05-29 15:01:50 +020062 sess->flags = SESS_FL_NONE;
Willy Tarreauc38f71c2015-04-05 00:38:48 +020063 }
64 return sess;
65}
66
Willy Tarreau11c36242015-04-04 15:54:03 +020067void session_free(struct session *sess)
68{
Olivier Houchard00cf70f2018-11-30 17:24:55 +010069 struct connection *conn, *conn_back;
Olivier Houchard351411f2018-12-27 17:20:54 +010070 struct sess_srv_list *srv_list, *srv_list_back;
Olivier Houchard7c6f8b12018-11-13 16:48:36 +010071
Willy Tarreau4f0c64c2017-10-18 15:01:14 +020072 if (sess->listener)
73 listener_release(sess->listener);
Willy Tarreaubb2ef122015-04-04 16:31:16 +020074 session_store_counters(sess);
Willy Tarreauebcd4842015-06-19 11:59:02 +020075 vars_prune_per_sess(&sess->vars);
Olivier Houchard7c6f8b12018-11-13 16:48:36 +010076 conn = objt_conn(sess->origin);
77 if (conn != NULL && conn->mux)
Christopher Faulet73c12072019-04-08 11:23:22 +020078 conn->mux->destroy(conn->ctx);
Olivier Houchard351411f2018-12-27 17:20:54 +010079 list_for_each_entry_safe(srv_list, srv_list_back, &sess->srv_list, srv_list) {
80 list_for_each_entry_safe(conn, conn_back, &srv_list->conn_list, session_list) {
Willy Tarreau65718282019-11-15 07:04:24 +010081 LIST_DEL_INIT(&conn->session_list);
Olivier Houchard00cf70f2018-11-30 17:24:55 +010082 if (conn->mux) {
Olivier Houchard00cf70f2018-11-30 17:24:55 +010083 conn->owner = NULL;
Olivier Houchard8788b412019-01-31 19:31:19 +010084 conn->flags &= ~CO_FL_SESS_IDLE;
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +010085 if (!srv_add_to_idle_list(objt_server(conn->target), conn))
Christopher Faulet73c12072019-04-08 11:23:22 +020086 conn->mux->destroy(conn->ctx);
Olivier Houchard00cf70f2018-11-30 17:24:55 +010087 } else {
88 /* We have a connection, but not yet an associated mux.
89 * So destroy it now.
90 */
91 conn_stop_tracking(conn);
92 conn_full_close(conn);
93 conn_free(conn);
94 }
95 }
Olivier Houchard351411f2018-12-27 17:20:54 +010096 pool_free(pool_head_sess_srv_list, srv_list);
Olivier Houchard201b9f42018-11-21 00:16:29 +010097 }
Willy Tarreaubafbe012017-11-24 17:34:44 +010098 pool_free(pool_head_session, sess);
Olivier Houchardd5b3d302019-03-08 18:54:34 +010099 _HA_ATOMIC_SUB(&jobs, 1);
Willy Tarreau11c36242015-04-04 15:54:03 +0200100}
101
Willy Tarreau3e13cba2017-10-08 11:26:30 +0200102/* callback used from the connection/mux layer to notify that a connection is
Joseph Herlantd091bfb2018-11-25 11:22:10 -0800103 * going to be released.
Willy Tarreau3e13cba2017-10-08 11:26:30 +0200104 */
105void conn_session_free(struct connection *conn)
106{
107 session_free(conn->owner);
108}
109
Willy Tarreau042cd752015-04-08 18:10:49 +0200110/* count a new session to keep frontend, listener and track stats up to date */
111static void session_count_new(struct session *sess)
112{
113 struct stkctr *stkctr;
114 void *ptr;
115 int i;
116
117 proxy_inc_fe_sess_ctr(sess->listener, sess->fe);
118
119 for (i = 0; i < MAX_SESS_STKCTR; i++) {
120 stkctr = &sess->stkctr[i];
121 if (!stkctr_entry(stkctr))
122 continue;
123
124 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
125 if (ptr)
Willy Tarreaue0523d52021-02-16 18:08:12 +0100126 HA_ATOMIC_ADD(&stktable_data_cast(ptr, sess_cnt), 1);
Willy Tarreau042cd752015-04-08 18:10:49 +0200127
128 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
129 if (ptr)
130 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
131 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
132 }
133}
134
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200135/* This function is called from the protocol layer accept() in order to
Dave Chiluk8618a6a2018-06-21 11:03:20 -0500136 * instantiate a new session on behalf of a given listener and frontend. It
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200137 * returns a positive value upon success, 0 if the connection can be ignored,
138 * or a negative value upon critical failure. The accepted file descriptor is
139 * closed if we return <= 0. If no handshake is needed, it immediately tries
Dave Chiluk8618a6a2018-06-21 11:03:20 -0500140 * to instantiate a new stream. The created connection's owner points to the
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200141 * new session until the upper layers are created.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200142 */
143int session_accept_fd(struct listener *l, int cfd, struct sockaddr_storage *addr)
144{
145 struct connection *cli_conn;
Willy Tarreauc95bad52016-12-22 00:13:31 +0100146 struct proxy *p = l->bind_conf->frontend;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200147 struct session *sess;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200148 int ret;
149
150
151 ret = -1; /* assume unrecoverable error by default */
152
153 if (unlikely((cli_conn = conn_new()) == NULL))
154 goto out_close;
155
Willy Tarreau585744b2017-08-24 14:31:19 +0200156 cli_conn->handle.fd = cfd;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200157 cli_conn->addr.from = *addr;
158 cli_conn->flags |= CO_FL_ADDR_FROM_SET;
159 cli_conn->target = &l->obj_type;
160 cli_conn->proxy_netns = l->netns;
161
Willy Tarreaube373152018-09-06 11:45:30 +0200162 conn_prepare(cli_conn, l->proto, l->bind_conf->xprt);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200163 conn_ctrl_init(cli_conn);
164
165 /* wait for a PROXY protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200166 if (l->options & LI_O_ACC_PROXY)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200167 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200168
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100169 /* wait for a NetScaler client IP insertion protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200170 if (l->options & LI_O_ACC_CIP)
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100171 cli_conn->flags |= CO_FL_ACCEPT_CIP;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100172
Olivier Houchard1a0545f2017-09-13 18:30:23 +0200173 conn_xprt_want_recv(cli_conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200174 if (conn_xprt_init(cli_conn) < 0)
175 goto out_free_conn;
176
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200177 /* Add the handshake pseudo-XPRT */
178 if (cli_conn->flags & (CO_FL_ACCEPT_PROXY | CO_FL_ACCEPT_CIP)) {
179 if (xprt_add_hs(cli_conn) != 0)
180 goto out_free_conn;
181 }
Willy Tarreau64beab22015-04-05 00:39:16 +0200182 sess = session_new(p, l, &cli_conn->obj_type);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200183 if (!sess)
184 goto out_free_conn;
185
Willy Tarreau436d3332017-10-08 11:16:46 +0200186 conn_set_owner(cli_conn, sess, NULL);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200187
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200188 /* now evaluate the tcp-request layer4 rules. We only need a session
189 * and no stream for these rules.
190 */
Willy Tarreau7d9736f2016-10-21 16:34:21 +0200191 if ((l->options & LI_O_TCP_L4_RULES) && !tcp_exec_l4_rules(sess)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200192 /* let's do a no-linger now to close with a single RST. */
193 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
194 ret = 0; /* successful termination */
195 goto out_free_sess;
196 }
197
198 /* monitor-net and health mode are processed immediately after TCP
199 * connection rules. This way it's possible to block them, but they
200 * never use the lower data layers, they send directly over the socket,
201 * as they were designed for. We first flush the socket receive buffer
202 * in order to avoid emission of an RST by the system. We ignore any
203 * error.
204 */
205 if (unlikely((p->mode == PR_MODE_HEALTH) ||
206 ((l->options & LI_O_CHK_MONNET) &&
207 addr->ss_family == AF_INET &&
208 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
209 /* we have 4 possibilities here :
210 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
211 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
212 * - HEALTH mode without HTTP check => just send "OK"
213 * - TCP mode from monitoring address => just close
214 */
215 if (l->proto->drain)
216 l->proto->drain(cfd);
217 if (p->mode == PR_MODE_HTTP ||
218 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
219 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
220 else if (p->mode == PR_MODE_HEALTH)
221 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
222 ret = 0;
223 goto out_free_sess;
224 }
225
Willy Tarreauf9d1bc62015-04-05 17:56:47 +0200226 /* Adjust some socket options */
227 if (l->addr.ss_family == AF_INET || l->addr.ss_family == AF_INET6) {
228 setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY, (char *) &one, sizeof(one));
229
230 if (p->options & PR_O_TCP_CLI_KA)
231 setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one));
232
233 if (p->options & PR_O_TCP_NOLING)
234 fdtab[cfd].linger_risk = 1;
235
236#if defined(TCP_MAXSEG)
237 if (l->maxseg < 0) {
238 /* we just want to reduce the current MSS by that value */
239 int mss;
240 socklen_t mss_len = sizeof(mss);
241 if (getsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, &mss_len) == 0) {
242 mss += l->maxseg; /* remember, it's < 0 */
243 setsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, sizeof(mss));
244 }
245 }
246#endif
247 }
248
249 if (global.tune.client_sndbuf)
250 setsockopt(cfd, SOL_SOCKET, SO_SNDBUF, &global.tune.client_sndbuf, sizeof(global.tune.client_sndbuf));
251
252 if (global.tune.client_rcvbuf)
253 setsockopt(cfd, SOL_SOCKET, SO_RCVBUF, &global.tune.client_rcvbuf, sizeof(global.tune.client_rcvbuf));
254
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200255 /* OK, now either we have a pending handshake to execute with and then
256 * we must return to the I/O layer, or we can proceed with the end of
257 * the stream initialization. In case of handshake, we also set the I/O
258 * timeout to the frontend's client timeout and register a task in the
259 * session for this purpose. The connection's owner is left to the
260 * session during this period.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200261 *
262 * At this point we set the relation between sess/task/conn this way :
263 *
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200264 * +----------------- task
265 * | |
266 * orig -- sess <-- context |
267 * | ^ | |
268 * v | | |
269 * conn -- owner ---> task <-----+
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200270 */
Olivier Houchardc2aae742017-09-22 18:26:28 +0200271 if (cli_conn->flags & (CO_FL_HANDSHAKE | CO_FL_EARLY_SSL_HS)) {
Emeric Brunc60def82017-09-27 14:59:38 +0200272 if (unlikely((sess->task = task_new(tid_bit)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200273 goto out_free_sess;
274
Willy Tarreau8e3c6ce2017-08-28 15:46:01 +0200275 conn_set_xprt_done_cb(cli_conn, conn_complete_session);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200276
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200277 sess->task->context = sess;
278 sess->task->nice = l->nice;
279 sess->task->process = session_expire_embryonic;
280 sess->task->expire = tick_add_ifset(now_ms, p->timeout.client);
281 task_queue(sess->task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200282 return 1;
283 }
284
Willy Tarreau18b95a42015-04-05 01:04:01 +0200285 /* OK let's complete stream initialization since there is no handshake */
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200286 if (conn_complete_session(cli_conn) >= 0)
287 return 1;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200288
Willy Tarreaud07fc4b2020-01-07 18:03:09 +0100289 /* if we reach here we have deliberately decided not to keep this
290 * session (e.g. tcp-request rule), so that's not an error we should
291 * try to protect against.
292 */
293 ret = 0;
294
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200295 /* error unrolling */
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200296 out_free_sess:
Christopher Fauletfe234282018-03-23 15:11:55 +0100297 /* prevent call to listener_release during session_free. It will be
298 * done below, for all errors. */
299 sess->listener = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200300 session_free(sess);
301 out_free_conn:
Willy Tarreau5b78a9d2017-10-05 18:12:51 +0200302 conn_stop_tracking(cli_conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200303 conn_xprt_close(cli_conn);
304 conn_free(cli_conn);
305 out_close:
Christopher Fauletfe234282018-03-23 15:11:55 +0100306 listener_release(l);
Christopher Faulet469a7b42019-07-17 16:53:19 +0200307 if (ret < 0 && l->bind_conf->xprt == xprt_get(XPRT_RAW) &&
308 p->mode == PR_MODE_HTTP && l->bind_conf->mux_proto == NULL) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200309 /* critical error, no more memory, try to emit a 500 response */
Christopher Fauletbc093292019-07-17 21:36:33 +0200310 send(cfd, http_err_msgs[HTTP_ERR_500], strlen(http_err_msgs[HTTP_ERR_500]),
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200311 MSG_DONTWAIT|MSG_NOSIGNAL);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200312 }
313
314 if (fdtab[cfd].owner)
315 fd_delete(cfd);
316 else
317 close(cfd);
318 return ret;
319}
320
321
322/* prepare the trash with a log prefix for session <sess>. It only works with
323 * embryonic sessions based on a real connection. This function requires that
324 * at sess->origin points to the incoming connection.
325 */
326static void session_prepare_log_prefix(struct session *sess)
327{
328 struct tm tm;
329 char pn[INET6_ADDRSTRLEN];
330 int ret;
331 char *end;
332 struct connection *cli_conn = __objt_conn(sess->origin);
333
334 ret = addr_to_str(&cli_conn->addr.from, pn, sizeof(pn));
335 if (ret <= 0)
336 chunk_printf(&trash, "unknown [");
337 else if (ret == AF_UNIX)
338 chunk_printf(&trash, "%s:%d [", pn, sess->listener->luid);
339 else
340 chunk_printf(&trash, "%s:%d [", pn, get_host_port(&cli_conn->addr.from));
341
342 get_localtime(sess->accept_date.tv_sec, &tm);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200343 end = date2str_log(trash.area + trash.data, &tm, &(sess->accept_date),
344 trash.size - trash.data);
345 trash.data = end - trash.area;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200346 if (sess->listener->name)
347 chunk_appendf(&trash, "] %s/%s", sess->fe->id, sess->listener->name);
348 else
349 chunk_appendf(&trash, "] %s/%d", sess->fe->id, sess->listener->luid);
350}
351
352/* This function kills an existing embryonic session. It stops the connection's
353 * transport layer, releases assigned resources, resumes the listener if it was
354 * disabled and finally kills the file descriptor. This function requires that
355 * sess->origin points to the incoming connection.
356 */
Willy Tarreau086735a2018-11-05 15:09:47 +0100357static void session_kill_embryonic(struct session *sess, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200358{
359 int level = LOG_INFO;
360 struct connection *conn = __objt_conn(sess->origin);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200361 struct task *task = sess->task;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200362 unsigned int log = sess->fe->to_log;
363 const char *err_msg;
364
365 if (sess->fe->options2 & PR_O2_LOGERRORS)
366 level = LOG_ERR;
367
368 if (log && (sess->fe->options & PR_O_NULLNOLOG)) {
369 /* with "option dontlognull", we don't log connections with no transfer */
370 if (!conn->err_code ||
371 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100372 conn->err_code == CO_ER_CIP_EMPTY || conn->err_code == CO_ER_CIP_ABORT ||
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200373 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
374 log = 0;
375 }
376
377 if (log) {
Willy Tarreau086735a2018-11-05 15:09:47 +0100378 if (!conn->err_code && (state & TASK_WOKEN_TIMER)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200379 if (conn->flags & CO_FL_ACCEPT_PROXY)
380 conn->err_code = CO_ER_PRX_TIMEOUT;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100381 else if (conn->flags & CO_FL_ACCEPT_CIP)
382 conn->err_code = CO_ER_CIP_TIMEOUT;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200383 else if (conn->flags & CO_FL_SSL_WAIT_HS)
384 conn->err_code = CO_ER_SSL_TIMEOUT;
385 }
386
387 session_prepare_log_prefix(sess);
388 err_msg = conn_err_code_str(conn);
389 if (err_msg)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200390 send_log(sess->fe, level, "%s: %s\n", trash.area,
391 err_msg);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200392 else
393 send_log(sess->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200394 trash.area, conn->err_code, conn->flags);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200395 }
396
397 /* kill the connection now */
Willy Tarreau5b78a9d2017-10-05 18:12:51 +0200398 conn_stop_tracking(conn);
399 conn_full_close(conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200400 conn_free(conn);
Olivier Houchard7c6f8b12018-11-13 16:48:36 +0100401 sess->origin = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200402
Olivier Houchard3f795f72019-04-17 22:51:06 +0200403 task_destroy(task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200404 session_free(sess);
405}
406
407/* Manages the embryonic session timeout. It is only called when the timeout
408 * strikes and performs the required cleanup.
409 */
Olivier Houchard9f6af332018-05-25 14:04:04 +0200410static struct task *session_expire_embryonic(struct task *t, void *context, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200411{
Olivier Houchard9f6af332018-05-25 14:04:04 +0200412 struct session *sess = context;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200413
Olivier Houchardfde2a092018-08-16 19:03:50 +0200414 if (!(state & TASK_WOKEN_TIMER))
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200415 return t;
416
Willy Tarreau086735a2018-11-05 15:09:47 +0100417 session_kill_embryonic(sess, state);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200418 return NULL;
419}
420
421/* Finish initializing a session from a connection, or kills it if the
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200422 * connection shows and error. Returns <0 if the connection was killed. It may
423 * be called either asynchronously as an xprt_done callback with an embryonic
424 * session, or synchronously to finalize the session. The distinction is made
425 * on sess->task which is only set in the embryonic session case.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200426 */
427static int conn_complete_session(struct connection *conn)
428{
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200429 struct session *sess = conn->owner;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200430
Willy Tarreau590a0512018-09-05 11:56:48 +0200431 sess->t_handshake = tv_ms_elapsed(&sess->tv_accept, &now);
432
Willy Tarreau8e3c6ce2017-08-28 15:46:01 +0200433 conn_clear_xprt_done_cb(conn);
434
Emeric Brun1738e862018-03-05 17:46:16 +0100435 /* Verify if the connection just established. */
436 if (unlikely(!(conn->flags & (CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN | CO_FL_CONNECTED))))
437 conn->flags |= CO_FL_CONNECTED;
438
Willy Tarreaud1769b82015-04-06 00:25:48 +0200439 if (conn->flags & CO_FL_ERROR)
440 goto fail;
441
Willy Tarreau678be622015-04-08 18:18:15 +0200442 /* if logs require transport layer information, note it on the connection */
443 if (sess->fe->to_log & LW_XPRT)
444 conn->flags |= CO_FL_XPRT_TRACKED;
445
Willy Tarreau620408f2016-10-21 16:37:51 +0200446 /* we may have some tcp-request-session rules */
447 if ((sess->listener->options & LI_O_TCP_L5_RULES) && !tcp_exec_l5_rules(sess))
448 goto fail;
449
Willy Tarreau042cd752015-04-08 18:10:49 +0200450 session_count_new(sess);
Christopher Faulet7ce0c892018-04-10 15:01:45 +0200451 if (conn_install_mux_fe(conn, NULL) < 0)
Willy Tarreaud1769b82015-04-06 00:25:48 +0200452 goto fail;
453
Willy Tarreau87787ac2017-08-28 16:22:54 +0200454 /* the embryonic session's task is not needed anymore */
Willy Tarreauf6562792019-05-07 19:05:35 +0200455 task_destroy(sess->task);
456 sess->task = NULL;
Willy Tarreau3e13cba2017-10-08 11:26:30 +0200457 conn_set_owner(conn, sess, conn_session_free);
458
Willy Tarreaud1769b82015-04-06 00:25:48 +0200459 return 0;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200460
Willy Tarreaud1769b82015-04-06 00:25:48 +0200461 fail:
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200462 if (sess->task)
Willy Tarreau086735a2018-11-05 15:09:47 +0100463 session_kill_embryonic(sess, 0);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200464 return -1;
465}
466
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200467/*
468 * Local variables:
469 * c-indent-level: 8
470 * c-basic-offset: 8
471 * End:
472 */