blob: 710b6b6f61369aa15a7195bcc05a689a2bfef930 [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);
Willy Tarreaud5d62142020-11-20 17:22:44 +0100102 conn->owner = NULL;
Willy Tarreau3e13cba2017-10-08 11:26:30 +0200103}
104
Willy Tarreau042cd752015-04-08 18:10:49 +0200105/* count a new session to keep frontend, listener and track stats up to date */
106static void session_count_new(struct session *sess)
107{
108 struct stkctr *stkctr;
109 void *ptr;
110 int i;
111
112 proxy_inc_fe_sess_ctr(sess->listener, sess->fe);
113
114 for (i = 0; i < MAX_SESS_STKCTR; i++) {
115 stkctr = &sess->stkctr[i];
116 if (!stkctr_entry(stkctr))
117 continue;
118
119 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_CNT);
120 if (ptr)
121 stktable_data_cast(ptr, sess_cnt)++;
122
123 ptr = stktable_data_ptr(stkctr->table, stkctr_entry(stkctr), STKTABLE_DT_SESS_RATE);
124 if (ptr)
125 update_freq_ctr_period(&stktable_data_cast(ptr, sess_rate),
126 stkctr->table->data_arg[STKTABLE_DT_SESS_RATE].u, 1);
127 }
128}
129
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200130/* This function is called from the protocol layer accept() in order to
Dave Chiluk8618a6a2018-06-21 11:03:20 -0500131 * instantiate a new session on behalf of a given listener and frontend. It
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200132 * returns a positive value upon success, 0 if the connection can be ignored,
Willy Tarreau83efc322020-10-14 17:37:17 +0200133 * or a negative value upon critical failure. The accepted connection is
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200134 * closed if we return <= 0. If no handshake is needed, it immediately tries
Willy Tarreau83efc322020-10-14 17:37:17 +0200135 * to instantiate a new stream. The connection must already have been filled
136 * with the incoming connection handle (a fd), a target (the listener) and a
137 * source address.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200138 */
Willy Tarreau83efc322020-10-14 17:37:17 +0200139int session_accept_fd(struct connection *cli_conn)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200140{
Willy Tarreau83efc322020-10-14 17:37:17 +0200141 struct listener *l = __objt_listener(cli_conn->target);
Willy Tarreauc95bad52016-12-22 00:13:31 +0100142 struct proxy *p = l->bind_conf->frontend;
Willy Tarreau83efc322020-10-14 17:37:17 +0200143 int cfd = cli_conn->handle.fd;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200144 struct session *sess;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200145 int ret;
146
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200147 ret = -1; /* assume unrecoverable error by default */
148
Willy Tarreau818a92e2020-09-03 07:50:19 +0200149 cli_conn->proxy_netns = l->rx.settings->netns;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200150
Willy Tarreaub7436612020-08-28 19:51:44 +0200151 conn_prepare(cli_conn, l->rx.proto, l->bind_conf->xprt);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200152 conn_ctrl_init(cli_conn);
153
154 /* wait for a PROXY protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200155 if (l->options & LI_O_ACC_PROXY)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200156 cli_conn->flags |= CO_FL_ACCEPT_PROXY;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200157
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100158 /* wait for a NetScaler client IP insertion protocol header */
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200159 if (l->options & LI_O_ACC_CIP)
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100160 cli_conn->flags |= CO_FL_ACCEPT_CIP;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100161
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200162 if (conn_xprt_init(cli_conn) < 0)
163 goto out_free_conn;
164
Olivier Houchardfe50bfb2019-05-27 12:09:19 +0200165 /* Add the handshake pseudo-XPRT */
166 if (cli_conn->flags & (CO_FL_ACCEPT_PROXY | CO_FL_ACCEPT_CIP)) {
167 if (xprt_add_hs(cli_conn) != 0)
168 goto out_free_conn;
169 }
Willy Tarreau64beab22015-04-05 00:39:16 +0200170 sess = session_new(p, l, &cli_conn->obj_type);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200171 if (!sess)
172 goto out_free_conn;
173
Willy Tarreau436d3332017-10-08 11:16:46 +0200174 conn_set_owner(cli_conn, sess, NULL);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200175
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200176 /* now evaluate the tcp-request layer4 rules. We only need a session
177 * and no stream for these rules.
178 */
Willy Tarreau7d9736f2016-10-21 16:34:21 +0200179 if ((l->options & LI_O_TCP_L4_RULES) && !tcp_exec_l4_rules(sess)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200180 /* let's do a no-linger now to close with a single RST. */
181 setsockopt(cfd, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
182 ret = 0; /* successful termination */
183 goto out_free_sess;
184 }
185
Willy Tarreauf9d1bc62015-04-05 17:56:47 +0200186 /* Adjust some socket options */
Willy Tarreau37159062020-08-27 07:48:42 +0200187 if (l->rx.addr.ss_family == AF_INET || l->rx.addr.ss_family == AF_INET6) {
Willy Tarreauf9d1bc62015-04-05 17:56:47 +0200188 setsockopt(cfd, IPPROTO_TCP, TCP_NODELAY, (char *) &one, sizeof(one));
189
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900190 if (p->options & PR_O_TCP_CLI_KA) {
Willy Tarreauf9d1bc62015-04-05 17:56:47 +0200191 setsockopt(cfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &one, sizeof(one));
192
Willy Tarreau52543212020-07-09 05:58:51 +0200193#ifdef TCP_KEEPCNT
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900194 if (p->clitcpka_cnt)
195 setsockopt(cfd, IPPROTO_TCP, TCP_KEEPCNT, &p->clitcpka_cnt, sizeof(p->clitcpka_cnt));
Willy Tarreau52543212020-07-09 05:58:51 +0200196#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900197
Willy Tarreau52543212020-07-09 05:58:51 +0200198#ifdef TCP_KEEPIDLE
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900199 if (p->clitcpka_idle)
200 setsockopt(cfd, IPPROTO_TCP, TCP_KEEPIDLE, &p->clitcpka_idle, sizeof(p->clitcpka_idle));
Willy Tarreau52543212020-07-09 05:58:51 +0200201#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900202
Willy Tarreau52543212020-07-09 05:58:51 +0200203#ifdef TCP_KEEPINTVL
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900204 if (p->clitcpka_intvl)
205 setsockopt(cfd, IPPROTO_TCP, TCP_KEEPINTVL, &p->clitcpka_intvl, sizeof(p->clitcpka_intvl));
Willy Tarreau52543212020-07-09 05:58:51 +0200206#endif
MIZUTA Takeshib24bc0d2020-07-09 11:13:20 +0900207 }
208
Willy Tarreauf9d1bc62015-04-05 17:56:47 +0200209 if (p->options & PR_O_TCP_NOLING)
210 fdtab[cfd].linger_risk = 1;
211
212#if defined(TCP_MAXSEG)
213 if (l->maxseg < 0) {
214 /* we just want to reduce the current MSS by that value */
215 int mss;
216 socklen_t mss_len = sizeof(mss);
217 if (getsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, &mss_len) == 0) {
218 mss += l->maxseg; /* remember, it's < 0 */
219 setsockopt(cfd, IPPROTO_TCP, TCP_MAXSEG, &mss, sizeof(mss));
220 }
221 }
222#endif
223 }
224
225 if (global.tune.client_sndbuf)
226 setsockopt(cfd, SOL_SOCKET, SO_SNDBUF, &global.tune.client_sndbuf, sizeof(global.tune.client_sndbuf));
227
228 if (global.tune.client_rcvbuf)
229 setsockopt(cfd, SOL_SOCKET, SO_RCVBUF, &global.tune.client_rcvbuf, sizeof(global.tune.client_rcvbuf));
230
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200231 /* OK, now either we have a pending handshake to execute with and then
232 * we must return to the I/O layer, or we can proceed with the end of
233 * the stream initialization. In case of handshake, we also set the I/O
234 * timeout to the frontend's client timeout and register a task in the
235 * session for this purpose. The connection's owner is left to the
236 * session during this period.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200237 *
238 * At this point we set the relation between sess/task/conn this way :
239 *
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200240 * +----------------- task
241 * | |
242 * orig -- sess <-- context |
243 * | ^ | |
244 * v | | |
245 * conn -- owner ---> task <-----+
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200246 */
Willy Tarreau911db9b2020-01-23 16:27:54 +0100247 if (cli_conn->flags & (CO_FL_WAIT_XPRT | CO_FL_EARLY_SSL_HS)) {
Emeric Brunc60def82017-09-27 14:59:38 +0200248 if (unlikely((sess->task = task_new(tid_bit)) == NULL))
Willy Tarreau87787ac2017-08-28 16:22:54 +0200249 goto out_free_sess;
250
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200251 sess->task->context = sess;
252 sess->task->nice = l->nice;
253 sess->task->process = session_expire_embryonic;
254 sess->task->expire = tick_add_ifset(now_ms, p->timeout.client);
255 task_queue(sess->task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200256 return 1;
257 }
258
Willy Tarreau18b95a42015-04-05 01:04:01 +0200259 /* OK let's complete stream initialization since there is no handshake */
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200260 if (conn_complete_session(cli_conn) >= 0)
261 return 1;
Willy Tarreaud1769b82015-04-06 00:25:48 +0200262
Willy Tarreaue5891ca2020-01-07 18:03:09 +0100263 /* if we reach here we have deliberately decided not to keep this
264 * session (e.g. tcp-request rule), so that's not an error we should
265 * try to protect against.
266 */
267 ret = 0;
268
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200269 /* error unrolling */
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200270 out_free_sess:
Christopher Fauletfe234282018-03-23 15:11:55 +0100271 /* prevent call to listener_release during session_free. It will be
272 * done below, for all errors. */
273 sess->listener = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200274 session_free(sess);
Willy Tarreau01ca1492020-10-15 07:11:14 +0200275
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200276 out_free_conn:
Christopher Faulet76f4c372019-07-17 16:53:19 +0200277 if (ret < 0 && l->bind_conf->xprt == xprt_get(XPRT_RAW) &&
278 p->mode == PR_MODE_HTTP && l->bind_conf->mux_proto == NULL) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200279 /* critical error, no more memory, try to emit a 500 response */
Christopher Faulet39566d12019-07-17 21:36:33 +0200280 send(cfd, http_err_msgs[HTTP_ERR_500], strlen(http_err_msgs[HTTP_ERR_500]),
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200281 MSG_DONTWAIT|MSG_NOSIGNAL);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200282 }
283
Willy Tarreau01ca1492020-10-15 07:11:14 +0200284 conn_stop_tracking(cli_conn);
285 conn_full_close(cli_conn);
286 conn_free(cli_conn);
287 listener_release(l);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200288 return ret;
289}
290
291
292/* prepare the trash with a log prefix for session <sess>. It only works with
293 * embryonic sessions based on a real connection. This function requires that
294 * at sess->origin points to the incoming connection.
295 */
296static void session_prepare_log_prefix(struct session *sess)
297{
298 struct tm tm;
299 char pn[INET6_ADDRSTRLEN];
300 int ret;
301 char *end;
302 struct connection *cli_conn = __objt_conn(sess->origin);
303
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200304 ret = conn_get_src(cli_conn) ? addr_to_str(cli_conn->src, pn, sizeof(pn)) : 0;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200305 if (ret <= 0)
306 chunk_printf(&trash, "unknown [");
307 else if (ret == AF_UNIX)
308 chunk_printf(&trash, "%s:%d [", pn, sess->listener->luid);
309 else
Willy Tarreau4d3c60a2019-07-17 15:23:20 +0200310 chunk_printf(&trash, "%s:%d [", pn, get_host_port(cli_conn->src));
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200311
312 get_localtime(sess->accept_date.tv_sec, &tm);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200313 end = date2str_log(trash.area + trash.data, &tm, &(sess->accept_date),
314 trash.size - trash.data);
315 trash.data = end - trash.area;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200316 if (sess->listener->name)
317 chunk_appendf(&trash, "] %s/%s", sess->fe->id, sess->listener->name);
318 else
319 chunk_appendf(&trash, "] %s/%d", sess->fe->id, sess->listener->luid);
320}
321
322/* This function kills an existing embryonic session. It stops the connection's
323 * transport layer, releases assigned resources, resumes the listener if it was
324 * disabled and finally kills the file descriptor. This function requires that
325 * sess->origin points to the incoming connection.
326 */
Willy Tarreau086735a2018-11-05 15:09:47 +0100327static void session_kill_embryonic(struct session *sess, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200328{
329 int level = LOG_INFO;
330 struct connection *conn = __objt_conn(sess->origin);
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200331 struct task *task = sess->task;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200332 unsigned int log = sess->fe->to_log;
333 const char *err_msg;
334
335 if (sess->fe->options2 & PR_O2_LOGERRORS)
336 level = LOG_ERR;
337
338 if (log && (sess->fe->options & PR_O_NULLNOLOG)) {
339 /* with "option dontlognull", we don't log connections with no transfer */
340 if (!conn->err_code ||
341 conn->err_code == CO_ER_PRX_EMPTY || conn->err_code == CO_ER_PRX_ABORT ||
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100342 conn->err_code == CO_ER_CIP_EMPTY || conn->err_code == CO_ER_CIP_ABORT ||
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200343 conn->err_code == CO_ER_SSL_EMPTY || conn->err_code == CO_ER_SSL_ABORT)
344 log = 0;
345 }
346
347 if (log) {
Willy Tarreau086735a2018-11-05 15:09:47 +0100348 if (!conn->err_code && (state & TASK_WOKEN_TIMER)) {
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200349 if (conn->flags & CO_FL_ACCEPT_PROXY)
350 conn->err_code = CO_ER_PRX_TIMEOUT;
Bertrand Jacquin93b227d2016-06-04 15:11:10 +0100351 else if (conn->flags & CO_FL_ACCEPT_CIP)
352 conn->err_code = CO_ER_CIP_TIMEOUT;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200353 else if (conn->flags & CO_FL_SSL_WAIT_HS)
354 conn->err_code = CO_ER_SSL_TIMEOUT;
355 }
356
357 session_prepare_log_prefix(sess);
358 err_msg = conn_err_code_str(conn);
359 if (err_msg)
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200360 send_log(sess->fe, level, "%s: %s\n", trash.area,
361 err_msg);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200362 else
363 send_log(sess->fe, level, "%s: unknown connection error (code=%d flags=%08x)\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200364 trash.area, conn->err_code, conn->flags);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200365 }
366
367 /* kill the connection now */
Willy Tarreau5b78a9d2017-10-05 18:12:51 +0200368 conn_stop_tracking(conn);
369 conn_full_close(conn);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200370 conn_free(conn);
Olivier Houchard7c6f8b12018-11-13 16:48:36 +0100371 sess->origin = NULL;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200372
Olivier Houchard3f795f72019-04-17 22:51:06 +0200373 task_destroy(task);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200374 session_free(sess);
375}
376
377/* Manages the embryonic session timeout. It is only called when the timeout
378 * strikes and performs the required cleanup.
379 */
Olivier Houchard9f6af332018-05-25 14:04:04 +0200380static struct task *session_expire_embryonic(struct task *t, void *context, unsigned short state)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200381{
Olivier Houchard9f6af332018-05-25 14:04:04 +0200382 struct session *sess = context;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200383
Olivier Houchardfde2a092018-08-16 19:03:50 +0200384 if (!(state & TASK_WOKEN_TIMER))
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200385 return t;
386
Willy Tarreau086735a2018-11-05 15:09:47 +0100387 session_kill_embryonic(sess, state);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200388 return NULL;
389}
390
391/* Finish initializing a session from a connection, or kills it if the
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200392 * connection shows and error. Returns <0 if the connection was killed. It may
Olivier Houchard477902b2020-01-22 18:08:48 +0100393 * be called either asynchronously when ssl handshake is done with an embryonic
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200394 * session, or synchronously to finalize the session. The distinction is made
395 * on sess->task which is only set in the embryonic session case.
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200396 */
Olivier Houchard477902b2020-01-22 18:08:48 +0100397int conn_complete_session(struct connection *conn)
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200398{
Willy Tarreau0b74eae2017-08-28 19:02:51 +0200399 struct session *sess = conn->owner;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200400
Willy Tarreau590a0512018-09-05 11:56:48 +0200401 sess->t_handshake = tv_ms_elapsed(&sess->tv_accept, &now);
402
Willy Tarreaud1769b82015-04-06 00:25:48 +0200403 if (conn->flags & CO_FL_ERROR)
404 goto fail;
405
Willy Tarreau678be622015-04-08 18:18:15 +0200406 /* if logs require transport layer information, note it on the connection */
407 if (sess->fe->to_log & LW_XPRT)
408 conn->flags |= CO_FL_XPRT_TRACKED;
409
Willy Tarreau620408f2016-10-21 16:37:51 +0200410 /* we may have some tcp-request-session rules */
411 if ((sess->listener->options & LI_O_TCP_L5_RULES) && !tcp_exec_l5_rules(sess))
412 goto fail;
413
Willy Tarreau042cd752015-04-08 18:10:49 +0200414 session_count_new(sess);
Christopher Faulet7ce0c892018-04-10 15:01:45 +0200415 if (conn_install_mux_fe(conn, NULL) < 0)
Willy Tarreaud1769b82015-04-06 00:25:48 +0200416 goto fail;
417
Willy Tarreau87787ac2017-08-28 16:22:54 +0200418 /* the embryonic session's task is not needed anymore */
Willy Tarreauf6562792019-05-07 19:05:35 +0200419 task_destroy(sess->task);
420 sess->task = NULL;
Willy Tarreau3e13cba2017-10-08 11:26:30 +0200421 conn_set_owner(conn, sess, conn_session_free);
422
Willy Tarreaud1769b82015-04-06 00:25:48 +0200423 return 0;
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200424
Willy Tarreaud1769b82015-04-06 00:25:48 +0200425 fail:
Willy Tarreau0c4ed352017-09-15 10:06:28 +0200426 if (sess->task)
Willy Tarreau086735a2018-11-05 15:09:47 +0100427 session_kill_embryonic(sess, 0);
Willy Tarreau9903f0e2015-04-04 18:50:31 +0200428 return -1;
429}
430
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200431/*
432 * Local variables:
433 * c-indent-level: 8
434 * c-basic-offset: 8
435 * End:
436 */