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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 Tarreau5de78172019-11-15 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)
126 stktable_data_cast(ptr, sess_cnt)++;
127
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 Tarreauca79f592019-07-17 19:04:47 +0200156 if (!sockaddr_alloc(&cli_conn->src))
157 goto out_free_conn;
158
Willy Tarreau585744b2017-08-24 14:31:19 +0200159 cli_conn->handle.fd = cfd;
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200160 *cli_conn->src = *addr;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200161 cli_conn->flags |= CO_FL_ADDR_FROM_SET;
162 cli_conn->target = &l->obj_type;
163 cli_conn->proxy_netns = l->netns;
164
Willy Tarreaube373152018-09-06 11:45:30 +0200165 conn_prepare(cli_conn, l->proto, l->bind_conf->xprt);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200166 conn_ctrl_init(cli_conn);
167
168 /* wait for a PROXY protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200169 if (l->options & LI_O_ACC_PROXY)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200170 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200171
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100172 /* wait for a NetScaler client IP insertion protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200173 if (l->options & LI_O_ACC_CIP)
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100174 cli_conn->flags |= CO_FL_ACCEPT_CIP;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100175
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200176 if (conn_xprt_init(cli_conn) < 0)
177 goto out_free_conn;
178
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200179 /* Add the handshake pseudo-XPRT */
180 if (cli_conn->flags & (CO_FL_ACCEPT_PROXY | CO_FL_ACCEPT_CIP)) {
181 if (xprt_add_hs(cli_conn) != 0)
182 goto out_free_conn;
183 }
Willy Tarreau64beab22015-04-05 00:39:16 +0200184 sess = session_new(p, l, &cli_conn->obj_type);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200185 if (!sess)
186 goto out_free_conn;
187
Willy Tarreau436d3332017-10-08 11:16:46 +0200188 conn_set_owner(cli_conn, sess, NULL);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200189
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200190 /* now evaluate the tcp-request layer4 rules. We only need a session
191 * and no stream for these rules.
192 */
Willy Tarreau7d9736f2016-10-21 16:34:21 +0200193 if ((l->options & LI_O_TCP_L4_RULES) && !tcp_exec_l4_rules(sess)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200194 /* let's do a no-linger now to close with a single RST. */
195 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
196 ret = 0; /* successful termination */
197 goto out_free_sess;
198 }
199
200 /* monitor-net and health mode are processed immediately after TCP
201 * connection rules. This way it's possible to block them, but they
202 * never use the lower data layers, they send directly over the socket,
203 * as they were designed for. We first flush the socket receive buffer
204 * in order to avoid emission of an RST by the system. We ignore any
205 * error.
206 */
207 if (unlikely((p->mode == PR_MODE_HEALTH) ||
208 ((l->options & LI_O_CHK_MONNET) &&
209 addr->ss_family == AF_INET &&
210 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
211 /* we have 4 possibilities here :
212 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
213 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
214 * - HEALTH mode without HTTP check => just send "OK"
215 * - TCP mode from monitoring address => just close
216 */
217 if (l->proto->drain)
218 l->proto->drain(cfd);
219 if (p->mode == PR_MODE_HTTP ||
220 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_HTTP_CHK))
221 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
222 else if (p->mode == PR_MODE_HEALTH)
223 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
224 ret = 0;
225 goto out_free_sess;
226 }
227
Willy Tarreauf9d1bc62015-04-05 17:56:47 +0200228 /* Adjust some socket options */
229 if (l->addr.ss_family == AF_INET || l->addr.ss_family == AF_INET6) {
230 setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY, (char *) &one, sizeof(one));
231
232 if (p->options & PR_O_TCP_CLI_KA)
233 setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one));
234
235 if (p->options & PR_O_TCP_NOLING)
236 fdtab[cfd].linger_risk = 1;
237
238#if defined(TCP_MAXSEG)
239 if (l->maxseg < 0) {
240 /* we just want to reduce the current MSS by that value */
241 int mss;
242 socklen_t mss_len = sizeof(mss);
243 if (getsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, &mss_len) == 0) {
244 mss += l->maxseg; /* remember, it's < 0 */
245 setsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, sizeof(mss));
246 }
247 }
248#endif
249 }
250
251 if (global.tune.client_sndbuf)
252 setsockopt(cfd, SOL_SOCKET, SO_SNDBUF, &global.tune.client_sndbuf, sizeof(global.tune.client_sndbuf));
253
254 if (global.tune.client_rcvbuf)
255 setsockopt(cfd, SOL_SOCKET, SO_RCVBUF, &global.tune.client_rcvbuf, sizeof(global.tune.client_rcvbuf));
256
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200257 /* OK, now either we have a pending handshake to execute with and then
258 * we must return to the I/O layer, or we can proceed with the end of
259 * the stream initialization. In case of handshake, we also set the I/O
260 * timeout to the frontend's client timeout and register a task in the
261 * session for this purpose. The connection's owner is left to the
262 * session during this period.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200263 *
264 * At this point we set the relation between sess/task/conn this way :
265 *
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200266 * +----------------- task
267 * | |
268 * orig -- sess <-- context |
269 * | ^ | |
270 * v | | |
271 * conn -- owner ---> task <-----+
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200272 */
Olivier Houchardc2aae742017-09-22 18:26:28 +0200273 if (cli_conn->flags & (CO_FL_HANDSHAKE | CO_FL_EARLY_SSL_HS)) {
Emeric Brunc60def82017-09-27 14:59:38 +0200274 if (unlikely((sess->task = task_new(tid_bit)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200275 goto out_free_sess;
276
Willy Tarreau8e3c6ce2017-08-28 15:46:01 +0200277 conn_set_xprt_done_cb(cli_conn, conn_complete_session);
Willy Tarreau87787ac2017-08-28 16:22:54 +0200278
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200279 sess->task->context = sess;
280 sess->task->nice = l->nice;
281 sess->task->process = session_expire_embryonic;
282 sess->task->expire = tick_add_ifset(now_ms, p->timeout.client);
283 task_queue(sess->task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200284 return 1;
285 }
286
Willy Tarreau18b95a42015-04-05 01:04:01 +0200287 /* OK let's complete stream initialization since there is no handshake */
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200288 if (conn_complete_session(cli_conn) >= 0)
289 return 1;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200290
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200291 /* error unrolling */
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200292 out_free_sess:
Christopher Fauletfe234282018-03-23 15:11:55 +0100293 /* prevent call to listener_release during session_free. It will be
294 * done below, for all errors. */
295 sess->listener = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200296 session_free(sess);
297 out_free_conn:
Willy Tarreau5b78a9d2017-10-05 18:12:51 +0200298 conn_stop_tracking(cli_conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200299 conn_xprt_close(cli_conn);
300 conn_free(cli_conn);
301 out_close:
Christopher Fauletfe234282018-03-23 15:11:55 +0100302 listener_release(l);
Christopher Faulet76f4c372019-07-17 16:53:19 +0200303 if (ret < 0 && l->bind_conf->xprt == xprt_get(XPRT_RAW) &&
304 p->mode == PR_MODE_HTTP && l->bind_conf->mux_proto == NULL) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200305 /* critical error, no more memory, try to emit a 500 response */
Christopher Faulet39566d12019-07-17 21:36:33 +0200306 send(cfd, http_err_msgs[HTTP_ERR_500], strlen(http_err_msgs[HTTP_ERR_500]),
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200307 MSG_DONTWAIT|MSG_NOSIGNAL);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200308 }
309
310 if (fdtab[cfd].owner)
311 fd_delete(cfd);
312 else
313 close(cfd);
314 return ret;
315}
316
317
318/* prepare the trash with a log prefix for session <sess>. It only works with
319 * embryonic sessions based on a real connection. This function requires that
320 * at sess->origin points to the incoming connection.
321 */
322static void session_prepare_log_prefix(struct session *sess)
323{
324 struct tm tm;
325 char pn[INET6_ADDRSTRLEN];
326 int ret;
327 char *end;
328 struct connection *cli_conn = __objt_conn(sess->origin);
329
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200330 ret = conn_get_src(cli_conn) ? addr_to_str(cli_conn->src, pn, sizeof(pn)) : 0;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200331 if (ret <= 0)
332 chunk_printf(&trash, "unknown [");
333 else if (ret == AF_UNIX)
334 chunk_printf(&trash, "%s:%d [", pn, sess->listener->luid);
335 else
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200336 chunk_printf(&trash, "%s:%d [", pn, get_host_port(cli_conn->src));
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200337
338 get_localtime(sess->accept_date.tv_sec, &tm);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200339 end = date2str_log(trash.area + trash.data, &tm, &(sess->accept_date),
340 trash.size - trash.data);
341 trash.data = end - trash.area;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200342 if (sess->listener->name)
343 chunk_appendf(&trash, "] %s/%s", sess->fe->id, sess->listener->name);
344 else
345 chunk_appendf(&trash, "] %s/%d", sess->fe->id, sess->listener->luid);
346}
347
348/* This function kills an existing embryonic session. It stops the connection's
349 * transport layer, releases assigned resources, resumes the listener if it was
350 * disabled and finally kills the file descriptor. This function requires that
351 * sess->origin points to the incoming connection.
352 */
Willy Tarreau086735a2018-11-05 15:09:47 +0100353static void session_kill_embryonic(struct session *sess, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200354{
355 int level = LOG_INFO;
356 struct connection *conn = __objt_conn(sess->origin);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200357 struct task *task = sess->task;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200358 unsigned int log = sess->fe->to_log;
359 const char *err_msg;
360
361 if (sess->fe->options2 & PR_O2_LOGERRORS)
362 level = LOG_ERR;
363
364 if (log && (sess->fe->options & PR_O_NULLNOLOG)) {
365 /* with "option dontlognull", we don't log connections with no transfer */
366 if (!conn->err_code ||
367 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100368 conn->err_code == CO_ER_CIP_EMPTY || conn->err_code == CO_ER_CIP_ABORT ||
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200369 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
370 log = 0;
371 }
372
373 if (log) {
Willy Tarreau086735a2018-11-05 15:09:47 +0100374 if (!conn->err_code && (state & TASK_WOKEN_TIMER)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200375 if (conn->flags & CO_FL_ACCEPT_PROXY)
376 conn->err_code = CO_ER_PRX_TIMEOUT;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100377 else if (conn->flags & CO_FL_ACCEPT_CIP)
378 conn->err_code = CO_ER_CIP_TIMEOUT;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200379 else if (conn->flags & CO_FL_SSL_WAIT_HS)
380 conn->err_code = CO_ER_SSL_TIMEOUT;
381 }
382
383 session_prepare_log_prefix(sess);
384 err_msg = conn_err_code_str(conn);
385 if (err_msg)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200386 send_log(sess->fe, level, "%s: %s\n", trash.area,
387 err_msg);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200388 else
389 send_log(sess->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200390 trash.area, conn->err_code, conn->flags);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200391 }
392
393 /* kill the connection now */
Willy Tarreau5b78a9d2017-10-05 18:12:51 +0200394 conn_stop_tracking(conn);
395 conn_full_close(conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200396 conn_free(conn);
Olivier Houchard7c6f8b12018-11-13 16:48:36 +0100397 sess->origin = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200398
Olivier Houchard3f795f72019-04-17 22:51:06 +0200399 task_destroy(task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200400 session_free(sess);
401}
402
403/* Manages the embryonic session timeout. It is only called when the timeout
404 * strikes and performs the required cleanup.
405 */
Olivier Houchard9f6af332018-05-25 14:04:04 +0200406static struct task *session_expire_embryonic(struct task *t, void *context, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200407{
Olivier Houchard9f6af332018-05-25 14:04:04 +0200408 struct session *sess = context;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200409
Olivier Houchardfde2a092018-08-16 19:03:50 +0200410 if (!(state & TASK_WOKEN_TIMER))
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200411 return t;
412
Willy Tarreau086735a2018-11-05 15:09:47 +0100413 session_kill_embryonic(sess, state);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200414 return NULL;
415}
416
417/* Finish initializing a session from a connection, or kills it if the
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200418 * connection shows and error. Returns <0 if the connection was killed. It may
419 * be called either asynchronously as an xprt_done callback with an embryonic
420 * session, or synchronously to finalize the session. The distinction is made
421 * on sess->task which is only set in the embryonic session case.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200422 */
423static int conn_complete_session(struct connection *conn)
424{
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200425 struct session *sess = conn->owner;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200426
Willy Tarreau590a0512018-09-05 11:56:48 +0200427 sess->t_handshake = tv_ms_elapsed(&sess->tv_accept, &now);
428
Willy Tarreau8e3c6ce2017-08-28 15:46:01 +0200429 conn_clear_xprt_done_cb(conn);
430
Emeric Brun1738e862018-03-05 17:46:16 +0100431 /* Verify if the connection just established. */
432 if (unlikely(!(conn->flags & (CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN | CO_FL_CONNECTED))))
433 conn->flags |= CO_FL_CONNECTED;
434
Willy Tarreaud1769b82015-04-06 00:25:48 +0200435 if (conn->flags & CO_FL_ERROR)
436 goto fail;
437
Willy Tarreau678be622015-04-08 18:18:15 +0200438 /* if logs require transport layer information, note it on the connection */
439 if (sess->fe->to_log & LW_XPRT)
440 conn->flags |= CO_FL_XPRT_TRACKED;
441
Willy Tarreau620408f2016-10-21 16:37:51 +0200442 /* we may have some tcp-request-session rules */
443 if ((sess->listener->options & LI_O_TCP_L5_RULES) && !tcp_exec_l5_rules(sess))
444 goto fail;
445
Willy Tarreau042cd752015-04-08 18:10:49 +0200446 session_count_new(sess);
Christopher Faulet7ce0c892018-04-10 15:01:45 +0200447 if (conn_install_mux_fe(conn, NULL) < 0)
Willy Tarreaud1769b82015-04-06 00:25:48 +0200448 goto fail;
449
Willy Tarreau87787ac2017-08-28 16:22:54 +0200450 /* the embryonic session's task is not needed anymore */
Willy Tarreauf6562792019-05-07 19:05:35 +0200451 task_destroy(sess->task);
452 sess->task = NULL;
Willy Tarreau3e13cba2017-10-08 11:26:30 +0200453 conn_set_owner(conn, sess, conn_session_free);
454
Willy Tarreaud1769b82015-04-06 00:25:48 +0200455 return 0;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200456
Willy Tarreaud1769b82015-04-06 00:25:48 +0200457 fail:
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200458 if (sess->task)
Willy Tarreau086735a2018-11-05 15:09:47 +0100459 session_kill_embryonic(sess, 0);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200460 return -1;
461}
462
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200463/*
464 * Local variables:
465 * c-indent-level: 8
466 * c-basic-offset: 8
467 * End:
468 */