blob: 02b021201abb2ee519bbe056c98578db260ec664 [file] [log] [blame]
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
Willy Tarreau4c7e4b72020-05-27 12:58:42 +020013#include <haproxy/api.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020014#include <haproxy/connection.h>
Willy Tarreauf268ee82020-06-04 17:05:57 +020015#include <haproxy/global.h>
Willy Tarreaucd72d8c2020-06-02 19:11:26 +020016#include <haproxy/http.h>
Willy Tarreau213e9902020-06-04 14:58:24 +020017#include <haproxy/listener.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020018#include <haproxy/log.h>
Willy Tarreaud0ef4392020-06-02 09:38:52 +020019#include <haproxy/pool.h>
Willy Tarreaua264d962020-06-04 22:29:18 +020020#include <haproxy/proxy.h>
Willy Tarreau48d25b32020-06-04 18:58:52 +020021#include <haproxy/session.h>
Willy Tarreau8b550af2020-06-04 17:42:48 +020022#include <haproxy/tcp_rules.h>
Willy Tarreaua1718922020-06-04 16:25:31 +020023#include <haproxy/vars.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +020024
Willy Tarreaubb2ef122015-04-04 16:31:16 +020025
Willy Tarreau8ceae722018-11-26 11:58:30 +010026DECLARE_POOL(pool_head_session, "session", sizeof(struct session));
Olivier Houchard351411f2018-12-27 17:20:54 +010027DECLARE_POOL(pool_head_sess_srv_list, "session server list",
28 sizeof(struct sess_srv_list));
Willy Tarreaub1ec8c42015-04-03 13:53:24 +020029
Olivier Houchard477902b2020-01-22 18:08:48 +010030int conn_complete_session(struct connection *conn);
Olivier Houchard9f6af332018-05-25 14:04:04 +020031static struct task *session_expire_embryonic(struct task *t, void *context, unsigned short state);
Willy Tarreau9903f0e2015-04-04 18:50:31 +020032
Willy Tarreauc38f71c2015-04-05 00:38:48 +020033/* Create a a new session and assign it to frontend <fe>, listener <li>,
34 * origin <origin>, set the current date and clear the stick counters pointers.
35 * Returns the session upon success or NULL. The session may be released using
Willy Tarreau0bf6fa52017-09-15 10:25:14 +020036 * session_free(). Note: <li> may be NULL.
Willy Tarreauc38f71c2015-04-05 00:38:48 +020037 */
38struct session *session_new(struct proxy *fe, struct listener *li, enum obj_type *origin)
39{
40 struct session *sess;
41
Willy Tarreaubafbe012017-11-24 17:34:44 +010042 sess = pool_alloc(pool_head_session);
Willy Tarreauc38f71c2015-04-05 00:38:48 +020043 if (sess) {
44 sess->listener = li;
45 sess->fe = fe;
46 sess->origin = origin;
47 sess->accept_date = date; /* user-visible date for logging */
48 sess->tv_accept = now; /* corrected date for internal use */
49 memset(sess->stkctr, 0, sizeof(sess->stkctr));
Willy Tarreauebcd4842015-06-19 11:59:02 +020050 vars_init(&sess->vars, SCOPE_SESS);
Willy Tarreau0b74eae2017-08-28 19:02:51 +020051 sess->task = NULL;
Willy Tarreau590a0512018-09-05 11:56:48 +020052 sess->t_handshake = -1; /* handshake not done yet */
Olivier Houchardd5b3d302019-03-08 18:54:34 +010053 _HA_ATOMIC_ADD(&totalconn, 1);
54 _HA_ATOMIC_ADD(&jobs, 1);
Olivier Houchard351411f2018-12-27 17:20:54 +010055 LIST_INIT(&sess->srv_list);
Olivier Houcharda2dbeb22018-12-28 18:50:57 +010056 sess->idle_conns = 0;
Olivier Houchard250031e2019-05-29 15:01:50 +020057 sess->flags = SESS_FL_NONE;
Willy Tarreauc38f71c2015-04-05 00:38:48 +020058 }
59 return sess;
60}
61
Willy Tarreau11c36242015-04-04 15:54:03 +020062void session_free(struct session *sess)
63{
Olivier Houchard00cf70f2018-11-30 17:24:55 +010064 struct connection *conn, *conn_back;
Olivier Houchard351411f2018-12-27 17:20:54 +010065 struct sess_srv_list *srv_list, *srv_list_back;
Olivier Houchard7c6f8b12018-11-13 16:48:36 +010066
Willy Tarreau4f0c64c2017-10-18 15:01:14 +020067 if (sess->listener)
68 listener_release(sess->listener);
Willy Tarreaubb2ef122015-04-04 16:31:16 +020069 session_store_counters(sess);
Willy Tarreauebcd4842015-06-19 11:59:02 +020070 vars_prune_per_sess(&sess->vars);
Olivier Houchard7c6f8b12018-11-13 16:48:36 +010071 conn = objt_conn(sess->origin);
72 if (conn != NULL && conn->mux)
Christopher Faulet73c12072019-04-08 11:23:22 +020073 conn->mux->destroy(conn->ctx);
Olivier Houchard351411f2018-12-27 17:20:54 +010074 list_for_each_entry_safe(srv_list, srv_list_back, &sess->srv_list, srv_list) {
75 list_for_each_entry_safe(conn, conn_back, &srv_list->conn_list, session_list) {
Willy Tarreau5de78172019-11-15 07:04:24 +010076 LIST_DEL_INIT(&conn->session_list);
Olivier Houchard00cf70f2018-11-30 17:24:55 +010077 if (conn->mux) {
Olivier Houchard00cf70f2018-11-30 17:24:55 +010078 conn->owner = NULL;
Olivier Houchard8788b412019-01-31 19:31:19 +010079 conn->flags &= ~CO_FL_SESS_IDLE;
Olivier Houchard2444aa52020-01-20 13:56:01 +010080 conn->mux->destroy(conn->ctx);
Olivier Houchard00cf70f2018-11-30 17:24:55 +010081 } else {
82 /* We have a connection, but not yet an associated mux.
83 * So destroy it now.
84 */
85 conn_stop_tracking(conn);
86 conn_full_close(conn);
87 conn_free(conn);
88 }
89 }
Olivier Houchard351411f2018-12-27 17:20:54 +010090 pool_free(pool_head_sess_srv_list, srv_list);
Olivier Houchard201b9f42018-11-21 00:16:29 +010091 }
Willy Tarreaubafbe012017-11-24 17:34:44 +010092 pool_free(pool_head_session, sess);
Olivier Houchardd5b3d302019-03-08 18:54:34 +010093 _HA_ATOMIC_SUB(&jobs, 1);
Willy Tarreau11c36242015-04-04 15:54:03 +020094}
95
Willy Tarreau3e13cba2017-10-08 11:26:30 +020096/* callback used from the connection/mux layer to notify that a connection is
Joseph Herlantd091bfb2018-11-25 11:22:10 -080097 * going to be released.
Willy Tarreau3e13cba2017-10-08 11:26:30 +020098 */
99void conn_session_free(struct connection *conn)
100{
101 session_free(conn->owner);
102}
103
Willy Tarreau042cd752015-04-08 18:10:49 +0200104/* count a new session to keep frontend, listener and track stats up to date */
105static void session_count_new(struct session *sess)
106{
107 struct stkctr *stkctr;
108 void *ptr;
109 int i;
110
111 proxy_inc_fe_sess_ctr(sess->listener, sess->fe);
112
113 for (i = 0; i < MAX_SESS_STKCTR; i++) {
114 stkctr = &sess->stkctr[i];
115 if (!stkctr_entry(stkctr))
116 continue;
117
118 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
119 if (ptr)
120 stktable_data_cast(ptr, sess_cnt)++;
121
122 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
123 if (ptr)
124 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
125 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
126 }
127}
128
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200129/* This function is called from the protocol layer accept() in order to
Dave Chiluk8618a6a2018-06-21 11:03:20 -0500130 * instantiate a new session on behalf of a given listener and frontend. It
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200131 * returns a positive value upon success, 0 if the connection can be ignored,
132 * or a negative value upon critical failure. The accepted file descriptor is
133 * closed if we return <= 0. If no handshake is needed, it immediately tries
Dave Chiluk8618a6a2018-06-21 11:03:20 -0500134 * to instantiate a new stream. The created connection's owner points to the
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200135 * new session until the upper layers are created.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200136 */
137int session_accept_fd(struct listener *l, int cfd, struct sockaddr_storage *addr)
138{
139 struct connection *cli_conn;
Willy Tarreauc95bad52016-12-22 00:13:31 +0100140 struct proxy *p = l->bind_conf->frontend;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200141 struct session *sess;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200142 int ret;
143
144
145 ret = -1; /* assume unrecoverable error by default */
146
147 if (unlikely((cli_conn = conn_new()) == NULL))
148 goto out_close;
149
Willy Tarreauca79f592019-07-17 19:04:47 +0200150 if (!sockaddr_alloc(&cli_conn->src))
151 goto out_free_conn;
152
Willy Tarreau585744b2017-08-24 14:31:19 +0200153 cli_conn->handle.fd = cfd;
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200154 *cli_conn->src = *addr;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200155 cli_conn->flags |= CO_FL_ADDR_FROM_SET;
156 cli_conn->target = &l->obj_type;
157 cli_conn->proxy_netns = l->netns;
158
Willy Tarreaube373152018-09-06 11:45:30 +0200159 conn_prepare(cli_conn, l->proto, l->bind_conf->xprt);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200160 conn_ctrl_init(cli_conn);
161
162 /* wait for a PROXY protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200163 if (l->options & LI_O_ACC_PROXY)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200164 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200165
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100166 /* wait for a NetScaler client IP insertion protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200167 if (l->options & LI_O_ACC_CIP)
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100168 cli_conn->flags |= CO_FL_ACCEPT_CIP;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100169
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200170 if (conn_xprt_init(cli_conn) < 0)
171 goto out_free_conn;
172
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200173 /* Add the handshake pseudo-XPRT */
174 if (cli_conn->flags & (CO_FL_ACCEPT_PROXY | CO_FL_ACCEPT_CIP)) {
175 if (xprt_add_hs(cli_conn) != 0)
176 goto out_free_conn;
177 }
Willy Tarreau64beab22015-04-05 00:39:16 +0200178 sess = session_new(p, l, &cli_conn->obj_type);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200179 if (!sess)
180 goto out_free_conn;
181
Willy Tarreau436d3332017-10-08 11:16:46 +0200182 conn_set_owner(cli_conn, sess, NULL);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200183
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200184 /* now evaluate the tcp-request layer4 rules. We only need a session
185 * and no stream for these rules.
186 */
Willy Tarreau7d9736f2016-10-21 16:34:21 +0200187 if ((l->options & LI_O_TCP_L4_RULES) && !tcp_exec_l4_rules(sess)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200188 /* let's do a no-linger now to close with a single RST. */
189 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
190 ret = 0; /* successful termination */
191 goto out_free_sess;
192 }
193
194 /* monitor-net and health mode are processed immediately after TCP
195 * connection rules. This way it's possible to block them, but they
196 * never use the lower data layers, they send directly over the socket,
197 * as they were designed for. We first flush the socket receive buffer
198 * in order to avoid emission of an RST by the system. We ignore any
199 * error.
200 */
201 if (unlikely((p->mode == PR_MODE_HEALTH) ||
202 ((l->options & LI_O_CHK_MONNET) &&
203 addr->ss_family == AF_INET &&
204 (((struct sockaddr_in *)addr)->sin_addr.s_addr & p->mon_mask.s_addr) == p->mon_net.s_addr))) {
205 /* we have 4 possibilities here :
206 * - HTTP mode, from monitoring address => send "HTTP/1.0 200 OK"
207 * - HEALTH mode with HTTP check => send "HTTP/1.0 200 OK"
208 * - HEALTH mode without HTTP check => just send "OK"
209 * - TCP mode from monitoring address => just close
210 */
211 if (l->proto->drain)
212 l->proto->drain(cfd);
213 if (p->mode == PR_MODE_HTTP ||
Christopher Faulete5870d82020-04-15 11:32:03 +0200214 (p->mode == PR_MODE_HEALTH && (p->options2 & PR_O2_CHK_ANY) == PR_O2_TCPCHK_CHK &&
215 (p->tcpcheck_rules.flags & TCPCHK_RULES_PROTO_CHK) == TCPCHK_RULES_HTTP_CHK))
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200216 send(cfd, "HTTP/1.0 200 OK\r\n\r\n", 19, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
217 else if (p->mode == PR_MODE_HEALTH)
218 send(cfd, "OK\n", 3, MSG_DONTWAIT|MSG_NOSIGNAL|MSG_MORE);
219 ret = 0;
220 goto out_free_sess;
221 }
222
Willy Tarreauf9d1bc62015-04-05 17:56:47 +0200223 /* Adjust some socket options */
224 if (l->addr.ss_family == AF_INET || l->addr.ss_family == AF_INET6) {
225 setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY, (char *) &one, sizeof(one));
226
227 if (p->options & PR_O_TCP_CLI_KA)
228 setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one));
229
230 if (p->options & PR_O_TCP_NOLING)
231 fdtab[cfd].linger_risk = 1;
232
233#if defined(TCP_MAXSEG)
234 if (l->maxseg < 0) {
235 /* we just want to reduce the current MSS by that value */
236 int mss;
237 socklen_t mss_len = sizeof(mss);
238 if (getsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, &mss_len) == 0) {
239 mss += l->maxseg; /* remember, it's < 0 */
240 setsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, sizeof(mss));
241 }
242 }
243#endif
244 }
245
246 if (global.tune.client_sndbuf)
247 setsockopt(cfd, SOL_SOCKET, SO_SNDBUF, &global.tune.client_sndbuf, sizeof(global.tune.client_sndbuf));
248
249 if (global.tune.client_rcvbuf)
250 setsockopt(cfd, SOL_SOCKET, SO_RCVBUF, &global.tune.client_rcvbuf, sizeof(global.tune.client_rcvbuf));
251
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200252 /* OK, now either we have a pending handshake to execute with and then
253 * we must return to the I/O layer, or we can proceed with the end of
254 * the stream initialization. In case of handshake, we also set the I/O
255 * timeout to the frontend's client timeout and register a task in the
256 * session for this purpose. The connection's owner is left to the
257 * session during this period.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200258 *
259 * At this point we set the relation between sess/task/conn this way :
260 *
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200261 * +----------------- task
262 * | |
263 * orig -- sess <-- context |
264 * | ^ | |
265 * v | | |
266 * conn -- owner ---> task <-----+
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200267 */
Willy Tarreau911db9b2020-01-23 16:27:54 +0100268 if (cli_conn->flags & (CO_FL_WAIT_XPRT | CO_FL_EARLY_SSL_HS)) {
Emeric Brunc60def82017-09-27 14:59:38 +0200269 if (unlikely((sess->task = task_new(tid_bit)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200270 goto out_free_sess;
271
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200272 sess->task->context = sess;
273 sess->task->nice = l->nice;
274 sess->task->process = session_expire_embryonic;
275 sess->task->expire = tick_add_ifset(now_ms, p->timeout.client);
276 task_queue(sess->task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200277 return 1;
278 }
279
Willy Tarreau18b95a42015-04-05 01:04:01 +0200280 /* OK let's complete stream initialization since there is no handshake */
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200281 if (conn_complete_session(cli_conn) >= 0)
282 return 1;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200283
Willy Tarreaue5891ca2020-01-07 18:03:09 +0100284 /* if we reach here we have deliberately decided not to keep this
285 * session (e.g. tcp-request rule), so that's not an error we should
286 * try to protect against.
287 */
288 ret = 0;
289
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200290 /* error unrolling */
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200291 out_free_sess:
Christopher Fauletfe234282018-03-23 15:11:55 +0100292 /* prevent call to listener_release during session_free. It will be
293 * done below, for all errors. */
294 sess->listener = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200295 session_free(sess);
296 out_free_conn:
Willy Tarreau5b78a9d2017-10-05 18:12:51 +0200297 conn_stop_tracking(cli_conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200298 conn_xprt_close(cli_conn);
299 conn_free(cli_conn);
300 out_close:
Christopher Fauletfe234282018-03-23 15:11:55 +0100301 listener_release(l);
Christopher Faulet76f4c372019-07-17 16:53:19 +0200302 if (ret < 0 && l->bind_conf->xprt == xprt_get(XPRT_RAW) &&
303 p->mode == PR_MODE_HTTP && l->bind_conf->mux_proto == NULL) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200304 /* critical error, no more memory, try to emit a 500 response */
Christopher Faulet39566d12019-07-17 21:36:33 +0200305 send(cfd, http_err_msgs[HTTP_ERR_500], strlen(http_err_msgs[HTTP_ERR_500]),
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200306 MSG_DONTWAIT|MSG_NOSIGNAL);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200307 }
308
309 if (fdtab[cfd].owner)
310 fd_delete(cfd);
311 else
312 close(cfd);
313 return ret;
314}
315
316
317/* prepare the trash with a log prefix for session <sess>. It only works with
318 * embryonic sessions based on a real connection. This function requires that
319 * at sess->origin points to the incoming connection.
320 */
321static void session_prepare_log_prefix(struct session *sess)
322{
323 struct tm tm;
324 char pn[INET6_ADDRSTRLEN];
325 int ret;
326 char *end;
327 struct connection *cli_conn = __objt_conn(sess->origin);
328
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200329 ret = conn_get_src(cli_conn) ? addr_to_str(cli_conn->src, pn, sizeof(pn)) : 0;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200330 if (ret <= 0)
331 chunk_printf(&trash, "unknown [");
332 else if (ret == AF_UNIX)
333 chunk_printf(&trash, "%s:%d [", pn, sess->listener->luid);
334 else
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200335 chunk_printf(&trash, "%s:%d [", pn, get_host_port(cli_conn->src));
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200336
337 get_localtime(sess->accept_date.tv_sec, &tm);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200338 end = date2str_log(trash.area + trash.data, &tm, &(sess->accept_date),
339 trash.size - trash.data);
340 trash.data = end - trash.area;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200341 if (sess->listener->name)
342 chunk_appendf(&trash, "] %s/%s", sess->fe->id, sess->listener->name);
343 else
344 chunk_appendf(&trash, "] %s/%d", sess->fe->id, sess->listener->luid);
345}
346
347/* This function kills an existing embryonic session. It stops the connection's
348 * transport layer, releases assigned resources, resumes the listener if it was
349 * disabled and finally kills the file descriptor. This function requires that
350 * sess->origin points to the incoming connection.
351 */
Willy Tarreau086735a2018-11-05 15:09:47 +0100352static void session_kill_embryonic(struct session *sess, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200353{
354 int level = LOG_INFO;
355 struct connection *conn = __objt_conn(sess->origin);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200356 struct task *task = sess->task;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200357 unsigned int log = sess->fe->to_log;
358 const char *err_msg;
359
360 if (sess->fe->options2 & PR_O2_LOGERRORS)
361 level = LOG_ERR;
362
363 if (log && (sess->fe->options & PR_O_NULLNOLOG)) {
364 /* with "option dontlognull", we don't log connections with no transfer */
365 if (!conn->err_code ||
366 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100367 conn->err_code == CO_ER_CIP_EMPTY || conn->err_code == CO_ER_CIP_ABORT ||
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200368 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
369 log = 0;
370 }
371
372 if (log) {
Willy Tarreau086735a2018-11-05 15:09:47 +0100373 if (!conn->err_code && (state & TASK_WOKEN_TIMER)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200374 if (conn->flags & CO_FL_ACCEPT_PROXY)
375 conn->err_code = CO_ER_PRX_TIMEOUT;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100376 else if (conn->flags & CO_FL_ACCEPT_CIP)
377 conn->err_code = CO_ER_CIP_TIMEOUT;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200378 else if (conn->flags & CO_FL_SSL_WAIT_HS)
379 conn->err_code = CO_ER_SSL_TIMEOUT;
380 }
381
382 session_prepare_log_prefix(sess);
383 err_msg = conn_err_code_str(conn);
384 if (err_msg)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200385 send_log(sess->fe, level, "%s: %s\n", trash.area,
386 err_msg);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200387 else
388 send_log(sess->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200389 trash.area, conn->err_code, conn->flags);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200390 }
391
392 /* kill the connection now */
Willy Tarreau5b78a9d2017-10-05 18:12:51 +0200393 conn_stop_tracking(conn);
394 conn_full_close(conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200395 conn_free(conn);
Olivier Houchard7c6f8b12018-11-13 16:48:36 +0100396 sess->origin = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200397
Olivier Houchard3f795f72019-04-17 22:51:06 +0200398 task_destroy(task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200399 session_free(sess);
400}
401
402/* Manages the embryonic session timeout. It is only called when the timeout
403 * strikes and performs the required cleanup.
404 */
Olivier Houchard9f6af332018-05-25 14:04:04 +0200405static struct task *session_expire_embryonic(struct task *t, void *context, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200406{
Olivier Houchard9f6af332018-05-25 14:04:04 +0200407 struct session *sess = context;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200408
Olivier Houchardfde2a092018-08-16 19:03:50 +0200409 if (!(state & TASK_WOKEN_TIMER))
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200410 return t;
411
Willy Tarreau086735a2018-11-05 15:09:47 +0100412 session_kill_embryonic(sess, state);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200413 return NULL;
414}
415
416/* Finish initializing a session from a connection, or kills it if the
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200417 * connection shows and error. Returns <0 if the connection was killed. It may
Olivier Houchard477902b2020-01-22 18:08:48 +0100418 * be called either asynchronously when ssl handshake is done with an embryonic
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200419 * session, or synchronously to finalize the session. The distinction is made
420 * on sess->task which is only set in the embryonic session case.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200421 */
Olivier Houchard477902b2020-01-22 18:08:48 +0100422int conn_complete_session(struct connection *conn)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200423{
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200424 struct session *sess = conn->owner;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200425
Willy Tarreau590a0512018-09-05 11:56:48 +0200426 sess->t_handshake = tv_ms_elapsed(&sess->tv_accept, &now);
427
Willy Tarreaud1769b82015-04-06 00:25:48 +0200428 if (conn->flags & CO_FL_ERROR)
429 goto fail;
430
Willy Tarreau678be622015-04-08 18:18:15 +0200431 /* if logs require transport layer information, note it on the connection */
432 if (sess->fe->to_log & LW_XPRT)
433 conn->flags |= CO_FL_XPRT_TRACKED;
434
Willy Tarreau620408f2016-10-21 16:37:51 +0200435 /* we may have some tcp-request-session rules */
436 if ((sess->listener->options & LI_O_TCP_L5_RULES) && !tcp_exec_l5_rules(sess))
437 goto fail;
438
Willy Tarreau042cd752015-04-08 18:10:49 +0200439 session_count_new(sess);
Christopher Faulet7ce0c892018-04-10 15:01:45 +0200440 if (conn_install_mux_fe(conn, NULL) < 0)
Willy Tarreaud1769b82015-04-06 00:25:48 +0200441 goto fail;
442
Willy Tarreau87787ac2017-08-28 16:22:54 +0200443 /* the embryonic session's task is not needed anymore */
Willy Tarreauf6562792019-05-07 19:05:35 +0200444 task_destroy(sess->task);
445 sess->task = NULL;
Willy Tarreau3e13cba2017-10-08 11:26:30 +0200446 conn_set_owner(conn, sess, conn_session_free);
447
Willy Tarreaud1769b82015-04-06 00:25:48 +0200448 return 0;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200449
Willy Tarreaud1769b82015-04-06 00:25:48 +0200450 fail:
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200451 if (sess->task)
Willy Tarreau086735a2018-11-05 15:09:47 +0100452 session_kill_embryonic(sess, 0);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200453 return -1;
454}
455
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200456/*
457 * Local variables:
458 * c-indent-level: 8
459 * c-basic-offset: 8
460 * End:
461 */