| File: | src/usr.sbin/httpd/server.c |
| Warning: | line 449, column 3 Use of memory after it is freed |
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| 1 | /* $OpenBSD: server.c,v 1.126 2021/07/14 13:33:57 kn Exp $ */ | |||
| 2 | ||||
| 3 | /* | |||
| 4 | * Copyright (c) 2006 - 2015 Reyk Floeter <reyk@openbsd.org> | |||
| 5 | * | |||
| 6 | * Permission to use, copy, modify, and distribute this software for any | |||
| 7 | * purpose with or without fee is hereby granted, provided that the above | |||
| 8 | * copyright notice and this permission notice appear in all copies. | |||
| 9 | * | |||
| 10 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |||
| 11 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |||
| 12 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |||
| 13 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |||
| 14 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |||
| 15 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |||
| 16 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |||
| 17 | */ | |||
| 18 | ||||
| 19 | #include <sys/types.h> | |||
| 20 | #include <sys/queue.h> | |||
| 21 | #include <sys/time.h> | |||
| 22 | #include <sys/stat.h> | |||
| 23 | #include <sys/socket.h> | |||
| 24 | #include <sys/uio.h> | |||
| 25 | #include <sys/tree.h> | |||
| 26 | ||||
| 27 | #include <netinet/in.h> | |||
| 28 | #include <netinet/tcp.h> | |||
| 29 | #include <arpa/inet.h> | |||
| 30 | ||||
| 31 | #include <stdio.h> | |||
| 32 | #include <stdlib.h> | |||
| 33 | #include <stdarg.h> | |||
| 34 | #include <limits.h> | |||
| 35 | #include <errno(*__errno()).h> | |||
| 36 | #include <fcntl.h> | |||
| 37 | #include <string.h> | |||
| 38 | #include <syslog.h> | |||
| 39 | #include <unistd.h> | |||
| 40 | #include <event.h> | |||
| 41 | #include <imsg.h> | |||
| 42 | #include <tls.h> | |||
| 43 | #include <vis.h> | |||
| 44 | ||||
| 45 | #include "httpd.h" | |||
| 46 | ||||
| 47 | #define MINIMUM(a, b)(((a) < (b)) ? (a) : (b)) (((a) < (b)) ? (a) : (b)) | |||
| 48 | ||||
| 49 | int server_dispatch_parent(int, struct privsep_proc *, | |||
| 50 | struct imsg *); | |||
| 51 | int server_dispatch_logger(int, struct privsep_proc *, | |||
| 52 | struct imsg *); | |||
| 53 | void server_shutdown(void); | |||
| 54 | ||||
| 55 | void server_init(struct privsep *, struct privsep_proc *p, void *); | |||
| 56 | void server_launch(void); | |||
| 57 | int server_socket(struct sockaddr_storage *, in_port_t, | |||
| 58 | struct server_config *, int, int); | |||
| 59 | int server_socket_listen(struct sockaddr_storage *, in_port_t, | |||
| 60 | struct server_config *); | |||
| 61 | struct server *server_byid(uint32_t); | |||
| 62 | ||||
| 63 | int server_tls_init(struct server *); | |||
| 64 | void server_tls_readcb(int, short, void *); | |||
| 65 | void server_tls_writecb(int, short, void *); | |||
| 66 | void server_tls_handshake(int, short, void *); | |||
| 67 | ||||
| 68 | void server_accept(int, short, void *); | |||
| 69 | void server_input(struct client *); | |||
| 70 | void server_inflight_dec(struct client *, const char *); | |||
| 71 | ||||
| 72 | extern void bufferevent_read_pressure_cb(struct evbuffer *, size_t, | |||
| 73 | size_t, void *); | |||
| 74 | ||||
| 75 | volatile int server_clients; | |||
| 76 | volatile int server_inflight = 0; | |||
| 77 | uint32_t server_cltid; | |||
| 78 | ||||
| 79 | static struct privsep_proc procs[] = { | |||
| 80 | { "parent", PROC_PARENT, server_dispatch_parent }, | |||
| 81 | { "logger", PROC_LOGGER, server_dispatch_logger } | |||
| 82 | }; | |||
| 83 | ||||
| 84 | void | |||
| 85 | server(struct privsep *ps, struct privsep_proc *p) | |||
| 86 | { | |||
| 87 | proc_run(ps, p, procs, nitems(procs)(sizeof((procs)) / sizeof((procs)[0])), server_init, NULL((void*)0)); | |||
| 88 | server_http(); | |||
| 89 | } | |||
| 90 | ||||
| 91 | void | |||
| 92 | server_shutdown(void) | |||
| 93 | { | |||
| 94 | config_purge(httpd_env, CONFIG_ALL0xff); | |||
| 95 | usleep(200); /* XXX server needs to shutdown last */ | |||
| 96 | } | |||
| 97 | ||||
| 98 | int | |||
| 99 | server_privinit(struct server *srv) | |||
| 100 | { | |||
| 101 | struct server *s; | |||
| 102 | ||||
| 103 | if (srv->srv_conf.flags & SRVFLAG_LOCATION0x00000020) | |||
| 104 | return (0); | |||
| 105 | ||||
| 106 | log_debug("%s: adding server %s", __func__, srv->srv_conf.name); | |||
| 107 | ||||
| 108 | /* | |||
| 109 | * There's no need to open a new socket if a server with the | |||
| 110 | * same address already exists. | |||
| 111 | */ | |||
| 112 | TAILQ_FOREACH(s, httpd_env->sc_servers, srv_entry)for((s) = ((httpd_env->sc_servers)->tqh_first); (s) != ( (void*)0); (s) = ((s)->srv_entry.tqe_next)) { | |||
| 113 | if (s != srv && s->srv_s != -1 && | |||
| 114 | s->srv_conf.port == srv->srv_conf.port && | |||
| 115 | sockaddr_cmp((struct sockaddr *)&s->srv_conf.ss, | |||
| 116 | (struct sockaddr *)&srv->srv_conf.ss, | |||
| 117 | s->srv_conf.prefixlen) == 0) | |||
| 118 | return (0); | |||
| 119 | } | |||
| 120 | ||||
| 121 | /* Open listening socket in the privileged process */ | |||
| 122 | if ((srv->srv_s = server_socket_listen(&srv->srv_conf.ss, | |||
| 123 | srv->srv_conf.port, &srv->srv_conf)) == -1) | |||
| 124 | return (-1); | |||
| 125 | ||||
| 126 | return (0); | |||
| 127 | } | |||
| 128 | ||||
| 129 | int | |||
| 130 | server_tls_cmp(struct server *s1, struct server *s2) | |||
| 131 | { | |||
| 132 | struct server_config *sc1, *sc2; | |||
| 133 | ||||
| 134 | sc1 = &s1->srv_conf; | |||
| 135 | sc2 = &s2->srv_conf; | |||
| 136 | ||||
| 137 | if (sc1->tls_flags != sc2->tls_flags) | |||
| 138 | return (-1); | |||
| 139 | if (sc1->tls_protocols != sc2->tls_protocols) | |||
| 140 | return (-1); | |||
| 141 | if (sc1->tls_ticket_lifetime != sc2->tls_ticket_lifetime) | |||
| 142 | return (-1); | |||
| 143 | if (strcmp(sc1->tls_ciphers, sc2->tls_ciphers) != 0) | |||
| 144 | return (-1); | |||
| 145 | if (strcmp(sc1->tls_dhe_params, sc2->tls_dhe_params) != 0) | |||
| 146 | return (-1); | |||
| 147 | if (strcmp(sc1->tls_ecdhe_curves, sc2->tls_ecdhe_curves) != 0) | |||
| 148 | return (-1); | |||
| 149 | ||||
| 150 | return (0); | |||
| 151 | } | |||
| 152 | ||||
| 153 | int | |||
| 154 | server_tls_load_keypair(struct server *srv) | |||
| 155 | { | |||
| 156 | if ((srv->srv_conf.flags & SRVFLAG_TLS0x00002000) == 0) | |||
| 157 | return (0); | |||
| 158 | ||||
| 159 | if ((srv->srv_conf.tls_cert = tls_load_file(srv->srv_conf.tls_cert_file, | |||
| 160 | &srv->srv_conf.tls_cert_len, NULL((void*)0))) == NULL((void*)0)) | |||
| 161 | return (-1); | |||
| 162 | log_debug("%s: using certificate %s", __func__, | |||
| 163 | srv->srv_conf.tls_cert_file); | |||
| 164 | ||||
| 165 | /* XXX allow to specify password for encrypted key */ | |||
| 166 | if ((srv->srv_conf.tls_key = tls_load_file(srv->srv_conf.tls_key_file, | |||
| 167 | &srv->srv_conf.tls_key_len, NULL((void*)0))) == NULL((void*)0)) | |||
| 168 | return (-1); | |||
| 169 | log_debug("%s: using private key %s", __func__, | |||
| 170 | srv->srv_conf.tls_key_file); | |||
| 171 | ||||
| 172 | return (0); | |||
| 173 | } | |||
| 174 | ||||
| 175 | int | |||
| 176 | server_tls_load_ocsp(struct server *srv) | |||
| 177 | { | |||
| 178 | if ((srv->srv_conf.flags & SRVFLAG_TLS0x00002000) == 0) | |||
| 179 | return (0); | |||
| 180 | ||||
| 181 | if (srv->srv_conf.tls_ocsp_staple_file == NULL((void*)0)) | |||
| 182 | return (0); | |||
| 183 | ||||
| 184 | if ((srv->srv_conf.tls_ocsp_staple = tls_load_file( | |||
| 185 | srv->srv_conf.tls_ocsp_staple_file, | |||
| 186 | &srv->srv_conf.tls_ocsp_staple_len, NULL((void*)0))) == NULL((void*)0)) { | |||
| 187 | log_warnx("%s: Failed to load ocsp staple from %s", __func__, | |||
| 188 | srv->srv_conf.tls_ocsp_staple_file); | |||
| 189 | return (-1); | |||
| 190 | } | |||
| 191 | ||||
| 192 | if (srv->srv_conf.tls_ocsp_staple_len == 0) { | |||
| 193 | log_warnx("%s: ignoring 0 length ocsp staple from %s", __func__, | |||
| 194 | srv->srv_conf.tls_ocsp_staple_file); | |||
| 195 | return (0); | |||
| 196 | } | |||
| 197 | ||||
| 198 | log_debug("%s: using ocsp staple from %s", __func__, | |||
| 199 | srv->srv_conf.tls_ocsp_staple_file); | |||
| 200 | ||||
| 201 | return (0); | |||
| 202 | } | |||
| 203 | ||||
| 204 | int | |||
| 205 | server_tls_load_ca(struct server *srv) | |||
| 206 | { | |||
| 207 | if ((srv->srv_conf.tls_flags & TLSFLAG_CA0x01) == 0 || | |||
| 208 | srv->srv_conf.tls_ca_file == NULL((void*)0)) | |||
| 209 | return (0); | |||
| 210 | ||||
| 211 | if ((srv->srv_conf.tls_ca = tls_load_file( | |||
| 212 | srv->srv_conf.tls_ca_file, | |||
| 213 | &srv->srv_conf.tls_ca_len, NULL((void*)0))) == NULL((void*)0)) | |||
| 214 | return (-1); | |||
| 215 | log_debug("%s: using ca cert(s) from %s", __func__, | |||
| 216 | srv->srv_conf.tls_ca_file); | |||
| 217 | ||||
| 218 | return (0); | |||
| 219 | } | |||
| 220 | ||||
| 221 | int | |||
| 222 | server_tls_load_crl(struct server *srv) | |||
| 223 | { | |||
| 224 | if ((srv->srv_conf.tls_flags & TLSFLAG_CA0x01) == 0 || | |||
| 225 | srv->srv_conf.tls_crl_file == NULL((void*)0)) | |||
| 226 | return (0); | |||
| 227 | ||||
| 228 | if ((srv->srv_conf.tls_crl = tls_load_file( | |||
| 229 | srv->srv_conf.tls_crl_file, | |||
| 230 | &srv->srv_conf.tls_crl_len, NULL((void*)0))) == NULL((void*)0)) | |||
| 231 | return (-1); | |||
| 232 | log_debug("%s: using crl(s) from %s", __func__, | |||
| 233 | srv->srv_conf.tls_crl_file); | |||
| 234 | ||||
| 235 | return (0); | |||
| 236 | } | |||
| 237 | ||||
| 238 | int | |||
| 239 | server_tls_init(struct server *srv) | |||
| 240 | { | |||
| 241 | struct server_config *srv_conf; | |||
| 242 | ||||
| 243 | if ((srv->srv_conf.flags & SRVFLAG_TLS0x00002000) == 0) | |||
| 244 | return (0); | |||
| 245 | ||||
| 246 | log_debug("%s: setting up tls for %s", __func__, srv->srv_conf.name); | |||
| 247 | ||||
| 248 | if ((srv->srv_tls_config = tls_config_new()) == NULL((void*)0)) { | |||
| 249 | log_warnx("%s: failed to get tls config", __func__); | |||
| 250 | return (-1); | |||
| 251 | } | |||
| 252 | if ((srv->srv_tls_ctx = tls_server()) == NULL((void*)0)) { | |||
| 253 | log_warnx("%s: failed to get tls server", __func__); | |||
| 254 | return (-1); | |||
| 255 | } | |||
| 256 | ||||
| 257 | if (tls_config_set_protocols(srv->srv_tls_config, | |||
| 258 | srv->srv_conf.tls_protocols) != 0) { | |||
| 259 | log_warnx("%s: failed to set tls protocols: %s", | |||
| 260 | __func__, tls_config_error(srv->srv_tls_config)); | |||
| 261 | return (-1); | |||
| 262 | } | |||
| 263 | if (tls_config_set_ciphers(srv->srv_tls_config, | |||
| 264 | srv->srv_conf.tls_ciphers) != 0) { | |||
| 265 | log_warnx("%s: failed to set tls ciphers: %s", | |||
| 266 | __func__, tls_config_error(srv->srv_tls_config)); | |||
| 267 | return (-1); | |||
| 268 | } | |||
| 269 | if (tls_config_set_dheparams(srv->srv_tls_config, | |||
| 270 | srv->srv_conf.tls_dhe_params) != 0) { | |||
| 271 | log_warnx("%s: failed to set tls dhe params: %s", | |||
| 272 | __func__, tls_config_error(srv->srv_tls_config)); | |||
| 273 | return (-1); | |||
| 274 | } | |||
| 275 | if (tls_config_set_ecdhecurves(srv->srv_tls_config, | |||
| 276 | srv->srv_conf.tls_ecdhe_curves) != 0) { | |||
| 277 | log_warnx("%s: failed to set tls ecdhe curves: %s", | |||
| 278 | __func__, tls_config_error(srv->srv_tls_config)); | |||
| 279 | return (-1); | |||
| 280 | } | |||
| 281 | ||||
| 282 | if (tls_config_set_keypair_ocsp_mem(srv->srv_tls_config, | |||
| 283 | srv->srv_conf.tls_cert, srv->srv_conf.tls_cert_len, | |||
| 284 | srv->srv_conf.tls_key, srv->srv_conf.tls_key_len, | |||
| 285 | srv->srv_conf.tls_ocsp_staple, | |||
| 286 | srv->srv_conf.tls_ocsp_staple_len) != 0) { | |||
| 287 | log_warnx("%s: failed to set tls certificate/key: %s", | |||
| 288 | __func__, tls_config_error(srv->srv_tls_config)); | |||
| 289 | return (-1); | |||
| 290 | } | |||
| 291 | ||||
| 292 | if (srv->srv_conf.tls_ca != NULL((void*)0)) { | |||
| 293 | if (tls_config_set_ca_mem(srv->srv_tls_config, | |||
| 294 | srv->srv_conf.tls_ca, srv->srv_conf.tls_ca_len) != 0) { | |||
| 295 | log_warnx("%s: failed to add ca cert(s)", __func__); | |||
| 296 | return (-1); | |||
| 297 | } | |||
| 298 | if (tls_config_set_crl_mem(srv->srv_tls_config, | |||
| 299 | srv->srv_conf.tls_crl, srv->srv_conf.tls_crl_len) != 0) { | |||
| 300 | log_warnx("%s: failed to add crl(s)", __func__); | |||
| 301 | return (-1); | |||
| 302 | } | |||
| 303 | if (srv->srv_conf.tls_flags & TLSFLAG_OPTIONAL0x04) | |||
| 304 | tls_config_verify_client_optional(srv->srv_tls_config); | |||
| 305 | else | |||
| 306 | tls_config_verify_client(srv->srv_tls_config); | |||
| 307 | } | |||
| 308 | ||||
| 309 | TAILQ_FOREACH(srv_conf, &srv->srv_hosts, entry)for((srv_conf) = ((&srv->srv_hosts)->tqh_first); (srv_conf ) != ((void*)0); (srv_conf) = ((srv_conf)->entry.tqe_next) ) { | |||
| 310 | if (srv_conf->tls_cert == NULL((void*)0) || srv_conf->tls_key == NULL((void*)0)) | |||
| 311 | continue; | |||
| 312 | log_debug("%s: adding keypair for server %s", __func__, | |||
| 313 | srv->srv_conf.name); | |||
| 314 | if (tls_config_add_keypair_ocsp_mem(srv->srv_tls_config, | |||
| 315 | srv_conf->tls_cert, srv_conf->tls_cert_len, | |||
| 316 | srv_conf->tls_key, srv_conf->tls_key_len, | |||
| 317 | srv_conf->tls_ocsp_staple, | |||
| 318 | srv_conf->tls_ocsp_staple_len) != 0) { | |||
| 319 | log_warnx("%s: failed to add tls keypair", __func__); | |||
| 320 | return (-1); | |||
| 321 | } | |||
| 322 | } | |||
| 323 | ||||
| 324 | /* set common session ID among all processes */ | |||
| 325 | if (tls_config_set_session_id(srv->srv_tls_config, | |||
| 326 | httpd_env->sc_tls_sid, sizeof(httpd_env->sc_tls_sid)) == -1) { | |||
| 327 | log_warnx("%s: could not set the TLS session ID: %s", | |||
| 328 | __func__, tls_config_error(srv->srv_tls_config)); | |||
| 329 | return (-1); | |||
| 330 | } | |||
| 331 | ||||
| 332 | /* ticket support */ | |||
| 333 | if (srv->srv_conf.tls_ticket_lifetime) { | |||
| 334 | if (tls_config_set_session_lifetime(srv->srv_tls_config, | |||
| 335 | srv->srv_conf.tls_ticket_lifetime) == -1) { | |||
| 336 | log_warnx("%s: could not set the TLS session lifetime: " | |||
| 337 | "%s", __func__, | |||
| 338 | tls_config_error(srv->srv_tls_config)); | |||
| 339 | return (-1); | |||
| 340 | } | |||
| 341 | tls_config_add_ticket_key(srv->srv_tls_config, | |||
| 342 | srv->srv_conf.tls_ticket_key.tt_keyrev, | |||
| 343 | srv->srv_conf.tls_ticket_key.tt_key, | |||
| 344 | sizeof(srv->srv_conf.tls_ticket_key.tt_key)); | |||
| 345 | explicit_bzero(&srv->srv_conf.tls_ticket_key, | |||
| 346 | sizeof(srv->srv_conf.tls_ticket_key)); | |||
| 347 | } | |||
| 348 | ||||
| 349 | if (tls_configure(srv->srv_tls_ctx, srv->srv_tls_config) != 0) { | |||
| 350 | log_warnx("%s: failed to configure tls - %s", __func__, | |||
| 351 | tls_error(srv->srv_tls_ctx)); | |||
| 352 | return (-1); | |||
| 353 | } | |||
| 354 | ||||
| 355 | /* We're now done with the public/private key & ca/crl... */ | |||
| 356 | tls_config_clear_keys(srv->srv_tls_config); | |||
| 357 | freezero(srv->srv_conf.tls_cert, srv->srv_conf.tls_cert_len); | |||
| 358 | freezero(srv->srv_conf.tls_key, srv->srv_conf.tls_key_len); | |||
| 359 | free(srv->srv_conf.tls_ca); | |||
| 360 | free(srv->srv_conf.tls_crl); | |||
| 361 | srv->srv_conf.tls_ca = NULL((void*)0); | |||
| 362 | srv->srv_conf.tls_cert = NULL((void*)0); | |||
| 363 | srv->srv_conf.tls_crl = NULL((void*)0); | |||
| 364 | srv->srv_conf.tls_key = NULL((void*)0); | |||
| 365 | srv->srv_conf.tls_ca_len = 0; | |||
| 366 | srv->srv_conf.tls_cert_len = 0; | |||
| 367 | srv->srv_conf.tls_crl_len = 0; | |||
| 368 | srv->srv_conf.tls_key_len = 0; | |||
| 369 | ||||
| 370 | return (0); | |||
| 371 | } | |||
| 372 | ||||
| 373 | void | |||
| 374 | server_generate_ticket_key(struct server_config *srv_conf) | |||
| 375 | { | |||
| 376 | struct server_tls_ticket *key = &srv_conf->tls_ticket_key; | |||
| 377 | ||||
| 378 | key->tt_id = srv_conf->id; | |||
| 379 | key->tt_keyrev = arc4random(); | |||
| 380 | arc4random_buf(key->tt_key, sizeof(key->tt_key)); | |||
| 381 | } | |||
| 382 | ||||
| 383 | void | |||
| 384 | server_init(struct privsep *ps, struct privsep_proc *p, void *arg) | |||
| 385 | { | |||
| 386 | server_http(); | |||
| 387 | ||||
| 388 | if (config_init(ps->ps_env) == -1) | |||
| 389 | fatal("failed to initialize configuration"); | |||
| 390 | ||||
| 391 | /* We use a custom shutdown callback */ | |||
| 392 | p->p_shutdown = server_shutdown; | |||
| 393 | ||||
| 394 | /* Unlimited file descriptors (use system limits) */ | |||
| 395 | socket_rlimit(-1); | |||
| 396 | ||||
| 397 | if (pledge("stdio rpath inet unix recvfd", NULL((void*)0)) == -1) | |||
| 398 | fatal("pledge"); | |||
| 399 | ||||
| 400 | #if 0 | |||
| 401 | /* Schedule statistics timer */ | |||
| 402 | evtimer_set(&ps->ps_env->sc_statev, server_statistics, NULL)event_set(&ps->ps_env->sc_statev, -1, 0, server_statistics , ((void*)0)); | |||
| 403 | memcpy(&tv, &ps->ps_env->sc_statinterval, sizeof(tv)); | |||
| 404 | evtimer_add(&ps->ps_env->sc_statev, &tv)event_add(&ps->ps_env->sc_statev, &tv); | |||
| 405 | #endif | |||
| 406 | } | |||
| 407 | ||||
| 408 | void | |||
| 409 | server_launch(void) | |||
| 410 | { | |||
| 411 | struct server *srv; | |||
| 412 | ||||
| 413 | TAILQ_FOREACH(srv, httpd_env->sc_servers, srv_entry)for((srv) = ((httpd_env->sc_servers)->tqh_first); (srv) != ((void*)0); (srv) = ((srv)->srv_entry.tqe_next)) { | |||
| 414 | log_debug("%s: configuring server %s", __func__, | |||
| 415 | srv->srv_conf.name); | |||
| 416 | ||||
| 417 | server_tls_init(srv); | |||
| 418 | server_http_init(srv); | |||
| 419 | ||||
| 420 | log_debug("%s: running server %s", __func__, | |||
| 421 | srv->srv_conf.name); | |||
| 422 | ||||
| 423 | event_set(&srv->srv_ev, srv->srv_s, EV_READ0x02, | |||
| 424 | server_accept, srv); | |||
| 425 | event_add(&srv->srv_ev, NULL((void*)0)); | |||
| 426 | evtimer_set(&srv->srv_evt, server_accept, srv)event_set(&srv->srv_evt, -1, 0, server_accept, srv); | |||
| 427 | } | |||
| 428 | } | |||
| 429 | ||||
| 430 | void | |||
| 431 | server_purge(struct server *srv) | |||
| 432 | { | |||
| 433 | struct client *clt; | |||
| 434 | struct server_config *srv_conf; | |||
| 435 | ||||
| 436 | /* shutdown and remove server */ | |||
| 437 | if (event_initialized(&srv->srv_ev)((&srv->srv_ev)->ev_flags & 0x80)) | |||
| ||||
| 438 | event_del(&srv->srv_ev); | |||
| 439 | if (evtimer_initialized(&srv->srv_evt)((&srv->srv_evt)->ev_flags & 0x80)) | |||
| 440 | evtimer_del(&srv->srv_evt)event_del(&srv->srv_evt); | |||
| 441 | ||||
| 442 | if (srv->srv_s != -1) | |||
| 443 | close(srv->srv_s); | |||
| 444 | TAILQ_REMOVE(httpd_env->sc_servers, srv, srv_entry)do { if (((srv)->srv_entry.tqe_next) != ((void*)0)) (srv)-> srv_entry.tqe_next->srv_entry.tqe_prev = (srv)->srv_entry .tqe_prev; else (httpd_env->sc_servers)->tqh_last = (srv )->srv_entry.tqe_prev; *(srv)->srv_entry.tqe_prev = (srv )->srv_entry.tqe_next; ; ; } while (0); | |||
| 445 | ||||
| 446 | /* cleanup sessions */ | |||
| 447 | while ((clt = | |||
| 448 | SPLAY_ROOT(&srv->srv_clients)(&srv->srv_clients)->sph_root) != NULL((void*)0)) | |||
| 449 | server_close(clt, NULL((void*)0)); | |||
| ||||
| 450 | ||||
| 451 | /* cleanup hosts */ | |||
| 452 | while ((srv_conf = | |||
| 453 | TAILQ_FIRST(&srv->srv_hosts)((&srv->srv_hosts)->tqh_first)) != NULL((void*)0)) { | |||
| 454 | TAILQ_REMOVE(&srv->srv_hosts, srv_conf, entry)do { if (((srv_conf)->entry.tqe_next) != ((void*)0)) (srv_conf )->entry.tqe_next->entry.tqe_prev = (srv_conf)->entry .tqe_prev; else (&srv->srv_hosts)->tqh_last = (srv_conf )->entry.tqe_prev; *(srv_conf)->entry.tqe_prev = (srv_conf )->entry.tqe_next; ; ; } while (0); | |||
| 455 | ||||
| 456 | /* It might point to our own "default" entry */ | |||
| 457 | if (srv_conf != &srv->srv_conf) { | |||
| 458 | serverconfig_free(srv_conf); | |||
| 459 | free(srv_conf); | |||
| 460 | } | |||
| 461 | } | |||
| 462 | ||||
| 463 | tls_config_free(srv->srv_tls_config); | |||
| 464 | tls_free(srv->srv_tls_ctx); | |||
| 465 | ||||
| 466 | free(srv); | |||
| 467 | } | |||
| 468 | ||||
| 469 | void | |||
| 470 | serverconfig_free(struct server_config *srv_conf) | |||
| 471 | { | |||
| 472 | struct fastcgi_param *param, *tparam; | |||
| 473 | ||||
| 474 | free(srv_conf->return_uri); | |||
| 475 | free(srv_conf->tls_ca_file); | |||
| 476 | free(srv_conf->tls_ca); | |||
| 477 | free(srv_conf->tls_cert_file); | |||
| 478 | free(srv_conf->tls_crl_file); | |||
| 479 | free(srv_conf->tls_crl); | |||
| 480 | free(srv_conf->tls_key_file); | |||
| 481 | free(srv_conf->tls_ocsp_staple_file); | |||
| 482 | free(srv_conf->tls_ocsp_staple); | |||
| 483 | freezero(srv_conf->tls_cert, srv_conf->tls_cert_len); | |||
| 484 | freezero(srv_conf->tls_key, srv_conf->tls_key_len); | |||
| 485 | ||||
| 486 | TAILQ_FOREACH_SAFE(param, &srv_conf->fcgiparams, entry, tparam)for ((param) = ((&srv_conf->fcgiparams)->tqh_first) ; (param) != ((void*)0) && ((tparam) = ((param)->entry .tqe_next), 1); (param) = (tparam)) | |||
| 487 | free(param); | |||
| 488 | } | |||
| 489 | ||||
| 490 | void | |||
| 491 | serverconfig_reset(struct server_config *srv_conf) | |||
| 492 | { | |||
| 493 | srv_conf->auth = NULL((void*)0); | |||
| 494 | srv_conf->return_uri = NULL((void*)0); | |||
| 495 | srv_conf->tls_ca = NULL((void*)0); | |||
| 496 | srv_conf->tls_ca_file = NULL((void*)0); | |||
| 497 | srv_conf->tls_cert = NULL((void*)0); | |||
| 498 | srv_conf->tls_cert_file = NULL((void*)0); | |||
| 499 | srv_conf->tls_crl = NULL((void*)0); | |||
| 500 | srv_conf->tls_crl_file = NULL((void*)0); | |||
| 501 | srv_conf->tls_key = NULL((void*)0); | |||
| 502 | srv_conf->tls_key_file = NULL((void*)0); | |||
| 503 | srv_conf->tls_ocsp_staple = NULL((void*)0); | |||
| 504 | srv_conf->tls_ocsp_staple_file = NULL((void*)0); | |||
| 505 | TAILQ_INIT(&srv_conf->fcgiparams)do { (&srv_conf->fcgiparams)->tqh_first = ((void*)0 ); (&srv_conf->fcgiparams)->tqh_last = &(&srv_conf ->fcgiparams)->tqh_first; } while (0); | |||
| 506 | } | |||
| 507 | ||||
| 508 | struct server * | |||
| 509 | server_byaddr(struct sockaddr *addr, in_port_t port) | |||
| 510 | { | |||
| 511 | struct server *srv; | |||
| 512 | ||||
| 513 | TAILQ_FOREACH(srv, httpd_env->sc_servers, srv_entry)for((srv) = ((httpd_env->sc_servers)->tqh_first); (srv) != ((void*)0); (srv) = ((srv)->srv_entry.tqe_next)) { | |||
| 514 | if (port == srv->srv_conf.port && | |||
| 515 | sockaddr_cmp((struct sockaddr *)&srv->srv_conf.ss, | |||
| 516 | addr, srv->srv_conf.prefixlen) == 0) | |||
| 517 | return (srv); | |||
| 518 | } | |||
| 519 | ||||
| 520 | return (NULL((void*)0)); | |||
| 521 | } | |||
| 522 | ||||
| 523 | struct server_config * | |||
| 524 | serverconfig_byid(uint32_t id) | |||
| 525 | { | |||
| 526 | struct server *srv; | |||
| 527 | struct server_config *srv_conf; | |||
| 528 | ||||
| 529 | TAILQ_FOREACH(srv, httpd_env->sc_servers, srv_entry)for((srv) = ((httpd_env->sc_servers)->tqh_first); (srv) != ((void*)0); (srv) = ((srv)->srv_entry.tqe_next)) { | |||
| 530 | if (srv->srv_conf.id == id) | |||
| 531 | return (&srv->srv_conf); | |||
| 532 | TAILQ_FOREACH(srv_conf, &srv->srv_hosts, entry)for((srv_conf) = ((&srv->srv_hosts)->tqh_first); (srv_conf ) != ((void*)0); (srv_conf) = ((srv_conf)->entry.tqe_next) ) { | |||
| 533 | if (srv_conf->id == id) | |||
| 534 | return (srv_conf); | |||
| 535 | } | |||
| 536 | } | |||
| 537 | ||||
| 538 | return (NULL((void*)0)); | |||
| 539 | } | |||
| 540 | ||||
| 541 | struct server * | |||
| 542 | server_byid(uint32_t id) | |||
| 543 | { | |||
| 544 | struct server *srv; | |||
| 545 | ||||
| 546 | TAILQ_FOREACH(srv, httpd_env->sc_servers, srv_entry)for((srv) = ((httpd_env->sc_servers)->tqh_first); (srv) != ((void*)0); (srv) = ((srv)->srv_entry.tqe_next)) { | |||
| 547 | if (srv->srv_conf.id == id) | |||
| 548 | return (srv); | |||
| 549 | } | |||
| 550 | return (NULL((void*)0)); | |||
| 551 | } | |||
| 552 | ||||
| 553 | int | |||
| 554 | server_foreach(int (*srv_cb)(struct server *, | |||
| 555 | struct server_config *, void *), void *arg) | |||
| 556 | { | |||
| 557 | struct server *srv; | |||
| 558 | struct server_config *srv_conf; | |||
| 559 | ||||
| 560 | TAILQ_FOREACH(srv, httpd_env->sc_servers, srv_entry)for((srv) = ((httpd_env->sc_servers)->tqh_first); (srv) != ((void*)0); (srv) = ((srv)->srv_entry.tqe_next)) { | |||
| 561 | if ((srv_cb)(srv, &srv->srv_conf, arg) == -1) | |||
| 562 | return (-1); | |||
| 563 | TAILQ_FOREACH(srv_conf, &srv->srv_hosts, entry)for((srv_conf) = ((&srv->srv_hosts)->tqh_first); (srv_conf ) != ((void*)0); (srv_conf) = ((srv_conf)->entry.tqe_next) ) { | |||
| 564 | if ((srv_cb)(srv, srv_conf, arg) == -1) | |||
| 565 | return (-1); | |||
| 566 | } | |||
| 567 | } | |||
| 568 | ||||
| 569 | return (0); | |||
| 570 | } | |||
| 571 | ||||
| 572 | struct server * | |||
| 573 | server_match(struct server *s2, int match_name) | |||
| 574 | { | |||
| 575 | struct server *s1; | |||
| 576 | ||||
| 577 | /* Attempt to find matching server. */ | |||
| 578 | TAILQ_FOREACH(s1, httpd_env->sc_servers, srv_entry)for((s1) = ((httpd_env->sc_servers)->tqh_first); (s1) != ((void*)0); (s1) = ((s1)->srv_entry.tqe_next)) { | |||
| 579 | if ((s1->srv_conf.flags & SRVFLAG_LOCATION0x00000020) != 0) | |||
| 580 | continue; | |||
| 581 | if (match_name) { | |||
| 582 | if (strcmp(s1->srv_conf.name, s2->srv_conf.name) != 0) | |||
| 583 | continue; | |||
| 584 | } | |||
| 585 | if (s1->srv_conf.port != s2->srv_conf.port) | |||
| 586 | continue; | |||
| 587 | if (sockaddr_cmp( | |||
| 588 | (struct sockaddr *)&s1->srv_conf.ss, | |||
| 589 | (struct sockaddr *)&s2->srv_conf.ss, | |||
| 590 | s1->srv_conf.prefixlen) != 0) | |||
| 591 | continue; | |||
| 592 | ||||
| 593 | return (s1); | |||
| 594 | } | |||
| 595 | ||||
| 596 | return (NULL((void*)0)); | |||
| 597 | } | |||
| 598 | ||||
| 599 | int | |||
| 600 | server_socket_af(struct sockaddr_storage *ss, in_port_t port) | |||
| 601 | { | |||
| 602 | switch (ss->ss_family) { | |||
| 603 | case AF_INET2: | |||
| 604 | ((struct sockaddr_in *)ss)->sin_port = port; | |||
| 605 | ((struct sockaddr_in *)ss)->sin_len = | |||
| 606 | sizeof(struct sockaddr_in); | |||
| 607 | break; | |||
| 608 | case AF_INET624: | |||
| 609 | ((struct sockaddr_in6 *)ss)->sin6_port = port; | |||
| 610 | ((struct sockaddr_in6 *)ss)->sin6_len = | |||
| 611 | sizeof(struct sockaddr_in6); | |||
| 612 | break; | |||
| 613 | default: | |||
| 614 | return (-1); | |||
| 615 | } | |||
| 616 | ||||
| 617 | return (0); | |||
| 618 | } | |||
| 619 | ||||
| 620 | in_port_t | |||
| 621 | server_socket_getport(struct sockaddr_storage *ss) | |||
| 622 | { | |||
| 623 | switch (ss->ss_family) { | |||
| 624 | case AF_INET2: | |||
| 625 | return (((struct sockaddr_in *)ss)->sin_port); | |||
| 626 | case AF_INET624: | |||
| 627 | return (((struct sockaddr_in6 *)ss)->sin6_port); | |||
| 628 | default: | |||
| 629 | return (0); | |||
| 630 | } | |||
| 631 | ||||
| 632 | /* NOTREACHED */ | |||
| 633 | return (0); | |||
| 634 | } | |||
| 635 | ||||
| 636 | int | |||
| 637 | server_socket(struct sockaddr_storage *ss, in_port_t port, | |||
| 638 | struct server_config *srv_conf, int fd, int reuseport) | |||
| 639 | { | |||
| 640 | struct linger lng; | |||
| 641 | int s = -1, val; | |||
| 642 | ||||
| 643 | if (server_socket_af(ss, port) == -1) | |||
| 644 | goto bad; | |||
| 645 | ||||
| 646 | s = fd == -1 ? socket(ss->ss_family, SOCK_STREAM1 | SOCK_NONBLOCK0x4000, | |||
| 647 | IPPROTO_TCP6) : fd; | |||
| 648 | if (s == -1) | |||
| 649 | goto bad; | |||
| 650 | ||||
| 651 | /* | |||
| 652 | * Socket options | |||
| 653 | */ | |||
| 654 | memset(&lng, 0, sizeof(lng)); | |||
| 655 | if (setsockopt(s, SOL_SOCKET0xffff, SO_LINGER0x0080, &lng, sizeof(lng)) == -1) | |||
| 656 | goto bad; | |||
| 657 | if (reuseport) { | |||
| 658 | val = 1; | |||
| 659 | if (setsockopt(s, SOL_SOCKET0xffff, SO_REUSEPORT0x0200, &val, | |||
| 660 | sizeof(int)) == -1) | |||
| 661 | goto bad; | |||
| 662 | } | |||
| 663 | if (srv_conf->tcpflags & TCPFLAG_BUFSIZ0x10) { | |||
| 664 | val = srv_conf->tcpbufsiz; | |||
| 665 | if (setsockopt(s, SOL_SOCKET0xffff, SO_RCVBUF0x1002, | |||
| 666 | &val, sizeof(val)) == -1) | |||
| 667 | goto bad; | |||
| 668 | val = srv_conf->tcpbufsiz; | |||
| 669 | if (setsockopt(s, SOL_SOCKET0xffff, SO_SNDBUF0x1001, | |||
| 670 | &val, sizeof(val)) == -1) | |||
| 671 | goto bad; | |||
| 672 | } | |||
| 673 | ||||
| 674 | /* | |||
| 675 | * IP options | |||
| 676 | */ | |||
| 677 | if (srv_conf->tcpflags & TCPFLAG_IPTTL0x20) { | |||
| 678 | val = (int)srv_conf->tcpipttl; | |||
| 679 | switch (ss->ss_family) { | |||
| 680 | case AF_INET2: | |||
| 681 | if (setsockopt(s, IPPROTO_IP0, IP_TTL4, | |||
| 682 | &val, sizeof(val)) == -1) | |||
| 683 | goto bad; | |||
| 684 | break; | |||
| 685 | case AF_INET624: | |||
| 686 | if (setsockopt(s, IPPROTO_IPV641, IPV6_UNICAST_HOPS4, | |||
| 687 | &val, sizeof(val)) == -1) | |||
| 688 | goto bad; | |||
| 689 | break; | |||
| 690 | } | |||
| 691 | } | |||
| 692 | if (srv_conf->tcpflags & TCPFLAG_IPMINTTL0x40) { | |||
| 693 | val = (int)srv_conf->tcpipminttl; | |||
| 694 | switch (ss->ss_family) { | |||
| 695 | case AF_INET2: | |||
| 696 | if (setsockopt(s, IPPROTO_IP0, IP_MINTTL32, | |||
| 697 | &val, sizeof(val)) == -1) | |||
| 698 | goto bad; | |||
| 699 | break; | |||
| 700 | case AF_INET624: | |||
| 701 | if (setsockopt(s, IPPROTO_IPV641, IPV6_MINHOPCOUNT65, | |||
| 702 | &val, sizeof(val)) == -1) | |||
| 703 | goto bad; | |||
| 704 | break; | |||
| 705 | } | |||
| 706 | } | |||
| 707 | ||||
| 708 | /* | |||
| 709 | * TCP options | |||
| 710 | */ | |||
| 711 | if (srv_conf->tcpflags & (TCPFLAG_NODELAY0x01|TCPFLAG_NNODELAY0x02)) { | |||
| 712 | if (srv_conf->tcpflags & TCPFLAG_NNODELAY0x02) | |||
| 713 | val = 0; | |||
| 714 | else | |||
| 715 | val = 1; | |||
| 716 | if (setsockopt(s, IPPROTO_TCP6, TCP_NODELAY0x01, | |||
| 717 | &val, sizeof(val)) == -1) | |||
| 718 | goto bad; | |||
| 719 | } | |||
| 720 | if (srv_conf->tcpflags & (TCPFLAG_SACK0x04|TCPFLAG_NSACK0x08)) { | |||
| 721 | if (srv_conf->tcpflags & TCPFLAG_NSACK0x08) | |||
| 722 | val = 0; | |||
| 723 | else | |||
| 724 | val = 1; | |||
| 725 | if (setsockopt(s, IPPROTO_TCP6, TCP_SACK_ENABLE0x08, | |||
| 726 | &val, sizeof(val)) == -1) | |||
| 727 | goto bad; | |||
| 728 | } | |||
| 729 | ||||
| 730 | return (s); | |||
| 731 | ||||
| 732 | bad: | |||
| 733 | if (s != -1) | |||
| 734 | close(s); | |||
| 735 | return (-1); | |||
| 736 | } | |||
| 737 | ||||
| 738 | int | |||
| 739 | server_socket_listen(struct sockaddr_storage *ss, in_port_t port, | |||
| 740 | struct server_config *srv_conf) | |||
| 741 | { | |||
| 742 | int s; | |||
| 743 | ||||
| 744 | if ((s = server_socket(ss, port, srv_conf, -1, 1)) == -1) | |||
| 745 | return (-1); | |||
| 746 | ||||
| 747 | if (bind(s, (struct sockaddr *)ss, ss->ss_len) == -1) | |||
| 748 | goto bad; | |||
| 749 | if (listen(s, srv_conf->tcpbacklog) == -1) | |||
| 750 | goto bad; | |||
| 751 | ||||
| 752 | return (s); | |||
| 753 | ||||
| 754 | bad: | |||
| 755 | close(s); | |||
| 756 | return (-1); | |||
| 757 | } | |||
| 758 | ||||
| 759 | int | |||
| 760 | server_socket_connect(struct sockaddr_storage *ss, in_port_t port, | |||
| 761 | struct server_config *srv_conf) | |||
| 762 | { | |||
| 763 | int s; | |||
| 764 | ||||
| 765 | if ((s = server_socket(ss, port, srv_conf, -1, 0)) == -1) | |||
| 766 | return (-1); | |||
| 767 | ||||
| 768 | if (connect(s, (struct sockaddr *)ss, ss->ss_len) == -1) { | |||
| 769 | if (errno(*__errno()) != EINPROGRESS36) | |||
| 770 | goto bad; | |||
| 771 | } | |||
| 772 | ||||
| 773 | return (s); | |||
| 774 | ||||
| 775 | bad: | |||
| 776 | close(s); | |||
| 777 | return (-1); | |||
| 778 | } | |||
| 779 | ||||
| 780 | void | |||
| 781 | server_tls_readcb(int fd, short event, void *arg) | |||
| 782 | { | |||
| 783 | struct bufferevent *bufev = arg; | |||
| 784 | struct client *clt = bufev->cbarg; | |||
| 785 | char rbuf[IBUF_READ_SIZE65535]; | |||
| 786 | int what = EVBUFFER_READ0x01; | |||
| 787 | int howmuch = IBUF_READ_SIZE65535; | |||
| 788 | ssize_t ret; | |||
| 789 | size_t len; | |||
| 790 | ||||
| 791 | if (event == EV_TIMEOUT0x01) { | |||
| 792 | what |= EVBUFFER_TIMEOUT0x40; | |||
| 793 | goto err; | |||
| 794 | } | |||
| 795 | ||||
| 796 | if (bufev->wm_read.high != 0) | |||
| 797 | howmuch = MINIMUM(sizeof(rbuf), bufev->wm_read.high)(((sizeof(rbuf)) < (bufev->wm_read.high)) ? (sizeof(rbuf )) : (bufev->wm_read.high)); | |||
| 798 | ||||
| 799 | ret = tls_read(clt->clt_tls_ctx, rbuf, howmuch); | |||
| 800 | if (ret == TLS_WANT_POLLIN-2 || ret == TLS_WANT_POLLOUT-3) { | |||
| 801 | goto retry; | |||
| 802 | } else if (ret == -1) { | |||
| 803 | what |= EVBUFFER_ERROR0x20; | |||
| 804 | goto err; | |||
| 805 | } | |||
| 806 | len = ret; | |||
| 807 | ||||
| 808 | if (len == 0) { | |||
| 809 | what |= EVBUFFER_EOF0x10; | |||
| 810 | goto err; | |||
| 811 | } | |||
| 812 | ||||
| 813 | if (evbuffer_add(bufev->input, rbuf, len) == -1) { | |||
| 814 | what |= EVBUFFER_ERROR0x20; | |||
| 815 | goto err; | |||
| 816 | } | |||
| 817 | ||||
| 818 | server_bufferevent_add(&bufev->ev_read, bufev->timeout_read); | |||
| 819 | ||||
| 820 | len = EVBUFFER_LENGTH(bufev->input)(bufev->input)->off; | |||
| 821 | if (bufev->wm_read.low != 0 && len < bufev->wm_read.low) | |||
| 822 | return; | |||
| 823 | if (bufev->wm_read.high != 0 && len > bufev->wm_read.high) { | |||
| 824 | struct evbuffer *buf = bufev->input; | |||
| 825 | event_del(&bufev->ev_read); | |||
| 826 | evbuffer_setcb(buf, bufferevent_read_pressure_cb, bufev); | |||
| 827 | return; | |||
| 828 | } | |||
| 829 | ||||
| 830 | if (bufev->readcb != NULL((void*)0)) | |||
| 831 | (*bufev->readcb)(bufev, bufev->cbarg); | |||
| 832 | return; | |||
| 833 | ||||
| 834 | retry: | |||
| 835 | server_bufferevent_add(&bufev->ev_read, bufev->timeout_read); | |||
| 836 | return; | |||
| 837 | ||||
| 838 | err: | |||
| 839 | (*bufev->errorcb)(bufev, what, bufev->cbarg); | |||
| 840 | } | |||
| 841 | ||||
| 842 | void | |||
| 843 | server_tls_writecb(int fd, short event, void *arg) | |||
| 844 | { | |||
| 845 | struct bufferevent *bufev = arg; | |||
| 846 | struct client *clt = bufev->cbarg; | |||
| 847 | ssize_t ret; | |||
| 848 | short what = EVBUFFER_WRITE0x02; | |||
| 849 | size_t len; | |||
| 850 | ||||
| 851 | if (event == EV_TIMEOUT0x01) { | |||
| 852 | what |= EVBUFFER_TIMEOUT0x40; | |||
| 853 | goto err; | |||
| 854 | } | |||
| 855 | ||||
| 856 | if (EVBUFFER_LENGTH(bufev->output)(bufev->output)->off) { | |||
| 857 | ret = tls_write(clt->clt_tls_ctx, | |||
| 858 | EVBUFFER_DATA(bufev->output)(bufev->output)->buffer, | |||
| 859 | EVBUFFER_LENGTH(bufev->output)(bufev->output)->off); | |||
| 860 | if (ret == TLS_WANT_POLLIN-2 || ret == TLS_WANT_POLLOUT-3) { | |||
| 861 | goto retry; | |||
| 862 | } else if (ret == -1) { | |||
| 863 | what |= EVBUFFER_ERROR0x20; | |||
| 864 | goto err; | |||
| 865 | } | |||
| 866 | len = ret; | |||
| 867 | evbuffer_drain(bufev->output, len); | |||
| 868 | } | |||
| 869 | ||||
| 870 | if (EVBUFFER_LENGTH(bufev->output)(bufev->output)->off != 0) | |||
| 871 | server_bufferevent_add(&bufev->ev_write, bufev->timeout_write); | |||
| 872 | ||||
| 873 | if (bufev->writecb != NULL((void*)0) && | |||
| 874 | EVBUFFER_LENGTH(bufev->output)(bufev->output)->off <= bufev->wm_write.low) | |||
| 875 | (*bufev->writecb)(bufev, bufev->cbarg); | |||
| 876 | return; | |||
| 877 | ||||
| 878 | retry: | |||
| 879 | server_bufferevent_add(&bufev->ev_write, bufev->timeout_write); | |||
| 880 | return; | |||
| 881 | ||||
| 882 | err: | |||
| 883 | (*bufev->errorcb)(bufev, what, bufev->cbarg); | |||
| 884 | } | |||
| 885 | ||||
| 886 | void | |||
| 887 | server_input(struct client *clt) | |||
| 888 | { | |||
| 889 | struct server_config *srv_conf = clt->clt_srv_conf; | |||
| 890 | evbuffercb inrd = server_read; | |||
| 891 | evbuffercb inwr = server_write; | |||
| 892 | socklen_t slen; | |||
| 893 | ||||
| 894 | if (server_httpdesc_init(clt) == -1) { | |||
| 895 | server_close(clt, "failed to allocate http descriptor"); | |||
| 896 | return; | |||
| 897 | } | |||
| 898 | ||||
| 899 | clt->clt_toread = TOREAD_HTTP_HEADER; | |||
| 900 | inrd = server_read_http; | |||
| 901 | ||||
| 902 | slen = sizeof(clt->clt_sndbufsiz); | |||
| 903 | if (getsockopt(clt->clt_s, SOL_SOCKET0xffff, SO_SNDBUF0x1001, | |||
| 904 | &clt->clt_sndbufsiz, &slen) == -1) { | |||
| 905 | server_close(clt, "failed to get send buffer size"); | |||
| 906 | return; | |||
| 907 | } | |||
| 908 | ||||
| 909 | /* | |||
| 910 | * Client <-> Server | |||
| 911 | */ | |||
| 912 | clt->clt_bev = bufferevent_new(clt->clt_s, inrd, inwr, | |||
| 913 | server_error, clt); | |||
| 914 | if (clt->clt_bev == NULL((void*)0)) { | |||
| 915 | server_close(clt, "failed to allocate input buffer event"); | |||
| 916 | return; | |||
| 917 | } | |||
| 918 | ||||
| 919 | if (srv_conf->flags & SRVFLAG_TLS0x00002000) { | |||
| 920 | event_set(&clt->clt_bev->ev_read, clt->clt_s, EV_READ0x02, | |||
| 921 | server_tls_readcb, clt->clt_bev); | |||
| 922 | event_set(&clt->clt_bev->ev_write, clt->clt_s, EV_WRITE0x04, | |||
| 923 | server_tls_writecb, clt->clt_bev); | |||
| 924 | } | |||
| 925 | ||||
| 926 | /* Adjust write watermark to the socket buffer output size */ | |||
| 927 | bufferevent_setwatermark(clt->clt_bev, EV_WRITE0x04, | |||
| 928 | SERVER_MIN_PREFETCHED32 * clt->clt_sndbufsiz, 0); | |||
| 929 | /* Read at most amount of data that fits in one fcgi record. */ | |||
| 930 | bufferevent_setwatermark(clt->clt_bev, EV_READ0x02, 0, FCGI_CONTENT_SIZE65535); | |||
| 931 | ||||
| 932 | bufferevent_settimeout(clt->clt_bev, | |||
| 933 | srv_conf->requesttimeout.tv_sec, srv_conf->requesttimeout.tv_sec); | |||
| 934 | bufferevent_enable(clt->clt_bev, EV_READ0x02|EV_WRITE0x04); | |||
| 935 | } | |||
| 936 | ||||
| 937 | void | |||
| 938 | server_write(struct bufferevent *bev, void *arg) | |||
| 939 | { | |||
| 940 | struct client *clt = arg; | |||
| 941 | struct evbuffer *dst = EVBUFFER_OUTPUT(bev)(bev)->output; | |||
| 942 | ||||
| 943 | if (EVBUFFER_LENGTH(dst)(dst)->off == 0 && | |||
| 944 | clt->clt_toread == TOREAD_HTTP_NONE) | |||
| 945 | goto done; | |||
| 946 | ||||
| 947 | getmonotime(&clt->clt_tv_last); | |||
| 948 | ||||
| 949 | if (clt->clt_done) | |||
| 950 | goto done; | |||
| 951 | ||||
| 952 | if (clt->clt_srvbev && clt->clt_srvbev_throttled) { | |||
| 953 | bufferevent_enable(clt->clt_srvbev, EV_READ0x02); | |||
| 954 | clt->clt_srvbev_throttled = 0; | |||
| 955 | } | |||
| 956 | ||||
| 957 | return; | |||
| 958 | done: | |||
| 959 | (*bev->errorcb)(bev, EVBUFFER_WRITE0x02, bev->cbarg); | |||
| 960 | return; | |||
| 961 | } | |||
| 962 | ||||
| 963 | void | |||
| 964 | server_dump(struct client *clt, const void *buf, size_t len) | |||
| 965 | { | |||
| 966 | if (!len) | |||
| 967 | return; | |||
| 968 | ||||
| 969 | /* | |||
| 970 | * This function will dump the specified message directly | |||
| 971 | * to the underlying client, without waiting for success | |||
| 972 | * of non-blocking events etc. This is useful to print an | |||
| 973 | * error message before gracefully closing the client. | |||
| 974 | */ | |||
| 975 | if (clt->clt_tls_ctx != NULL((void*)0)) | |||
| 976 | (void)tls_write(clt->clt_tls_ctx, buf, len); | |||
| 977 | else | |||
| 978 | (void)write(clt->clt_s, buf, len); | |||
| 979 | } | |||
| 980 | ||||
| 981 | void | |||
| 982 | server_read(struct bufferevent *bev, void *arg) | |||
| 983 | { | |||
| 984 | struct client *clt = arg; | |||
| 985 | struct evbuffer *src = EVBUFFER_INPUT(bev)(bev)->input; | |||
| 986 | ||||
| 987 | getmonotime(&clt->clt_tv_last); | |||
| 988 | ||||
| 989 | if (!EVBUFFER_LENGTH(src)(src)->off) | |||
| 990 | return; | |||
| 991 | if (server_bufferevent_write_buffer(clt, src) == -1) | |||
| 992 | goto fail; | |||
| 993 | if (clt->clt_done) | |||
| 994 | goto done; | |||
| 995 | ||||
| 996 | if (EVBUFFER_LENGTH(EVBUFFER_OUTPUT(clt->clt_bev))((clt->clt_bev)->output)->off > (size_t) | |||
| 997 | SERVER_MAX_PREFETCH256 * clt->clt_sndbufsiz) { | |||
| 998 | bufferevent_disable(clt->clt_srvbev, EV_READ0x02); | |||
| 999 | clt->clt_srvbev_throttled = 1; | |||
| 1000 | } | |||
| 1001 | ||||
| 1002 | return; | |||
| 1003 | done: | |||
| 1004 | (*bev->errorcb)(bev, EVBUFFER_READ0x01, bev->cbarg); | |||
| 1005 | return; | |||
| 1006 | fail: | |||
| 1007 | server_close(clt, strerror(errno(*__errno()))); | |||
| 1008 | } | |||
| 1009 | ||||
| 1010 | void | |||
| 1011 | server_error(struct bufferevent *bev, short error, void *arg) | |||
| 1012 | { | |||
| 1013 | struct client *clt = arg; | |||
| 1014 | struct evbuffer *dst; | |||
| 1015 | ||||
| 1016 | if (error & EVBUFFER_TIMEOUT0x40) { | |||
| 1017 | if (!clt->clt_headersdone && clt->clt_line > 0) | |||
| 1018 | server_abort_http(clt, 408, "timeout"); | |||
| 1019 | else | |||
| 1020 | server_close(clt, "timeout"); | |||
| 1021 | return; | |||
| 1022 | } | |||
| 1023 | if (error & EVBUFFER_ERROR0x20) { | |||
| 1024 | if (errno(*__errno()) == EFBIG27) { | |||
| 1025 | bufferevent_enable(bev, EV_READ0x02); | |||
| 1026 | return; | |||
| 1027 | } | |||
| 1028 | server_close(clt, "buffer event error"); | |||
| 1029 | return; | |||
| 1030 | } | |||
| 1031 | if (error & EVBUFFER_EOF0x10) { | |||
| 1032 | server_close(clt, "closed"); | |||
| 1033 | return; | |||
| 1034 | } | |||
| 1035 | if (error & (EVBUFFER_READ0x01|EVBUFFER_WRITE0x02)) { | |||
| 1036 | bufferevent_disable(bev, EV_READ0x02|EV_WRITE0x04); | |||
| 1037 | ||||
| 1038 | clt->clt_done = 1; | |||
| 1039 | ||||
| 1040 | dst = EVBUFFER_OUTPUT(clt->clt_bev)(clt->clt_bev)->output; | |||
| 1041 | if (EVBUFFER_LENGTH(dst)(dst)->off) { | |||
| 1042 | /* Finish writing all data first */ | |||
| 1043 | bufferevent_enable(clt->clt_bev, EV_WRITE0x04); | |||
| 1044 | return; | |||
| 1045 | } | |||
| 1046 | ||||
| 1047 | server_close(clt, "done"); | |||
| 1048 | return; | |||
| 1049 | } | |||
| 1050 | server_close(clt, "unknown event error"); | |||
| 1051 | return; | |||
| 1052 | } | |||
| 1053 | ||||
| 1054 | void | |||
| 1055 | server_accept(int fd, short event, void *arg) | |||
| 1056 | { | |||
| 1057 | struct server *srv = arg; | |||
| 1058 | struct client *clt = NULL((void*)0); | |||
| 1059 | socklen_t slen; | |||
| 1060 | struct sockaddr_storage ss; | |||
| 1061 | int s = -1; | |||
| 1062 | ||||
| 1063 | event_add(&srv->srv_ev, NULL((void*)0)); | |||
| 1064 | if ((event & EV_TIMEOUT0x01)) | |||
| 1065 | return; | |||
| 1066 | ||||
| 1067 | slen = sizeof(ss); | |||
| 1068 | if ((s = accept_reserve(fd, (struct sockaddr *)&ss, | |||
| 1069 | &slen, FD_RESERVE5, &server_inflight)) == -1) { | |||
| 1070 | /* | |||
| 1071 | * Pause accept if we are out of file descriptors, or | |||
| 1072 | * libevent will haunt us here too. | |||
| 1073 | */ | |||
| 1074 | if (errno(*__errno()) == ENFILE23 || errno(*__errno()) == EMFILE24) { | |||
| 1075 | struct timeval evtpause = { 1, 0 }; | |||
| 1076 | ||||
| 1077 | event_del(&srv->srv_ev); | |||
| 1078 | evtimer_add(&srv->srv_evt, &evtpause)event_add(&srv->srv_evt, &evtpause); | |||
| 1079 | log_debug("%s: deferring connections", __func__); | |||
| 1080 | } | |||
| 1081 | return; | |||
| 1082 | } | |||
| 1083 | if (server_clients >= SERVER_MAX_CLIENTS1024) | |||
| 1084 | goto err; | |||
| 1085 | ||||
| 1086 | if ((clt = calloc(1, sizeof(*clt))) == NULL((void*)0)) | |||
| 1087 | goto err; | |||
| 1088 | ||||
| 1089 | /* Pre-allocate log buffer */ | |||
| 1090 | clt->clt_log = evbuffer_new(); | |||
| 1091 | if (clt->clt_log == NULL((void*)0)) | |||
| 1092 | goto err; | |||
| 1093 | ||||
| 1094 | clt->clt_s = s; | |||
| 1095 | clt->clt_fd = -1; | |||
| 1096 | clt->clt_toread = TOREAD_UNLIMITED; | |||
| 1097 | clt->clt_srv = srv; | |||
| 1098 | clt->clt_srv_conf = &srv->srv_conf; | |||
| 1099 | clt->clt_id = ++server_cltid; | |||
| 1100 | clt->clt_srv_id = srv->srv_conf.id; | |||
| 1101 | clt->clt_pid = getpid(); | |||
| 1102 | clt->clt_inflight = 1; | |||
| 1103 | ||||
| 1104 | /* get local address */ | |||
| 1105 | slen = sizeof(clt->clt_srv_ss); | |||
| 1106 | if (getsockname(s, (struct sockaddr *)&clt->clt_srv_ss, | |||
| 1107 | &slen) == -1) { | |||
| 1108 | server_close(clt, "listen address lookup failed"); | |||
| 1109 | return; | |||
| 1110 | } | |||
| 1111 | ||||
| 1112 | /* get client address */ | |||
| 1113 | memcpy(&clt->clt_ss, &ss, sizeof(clt->clt_ss)); | |||
| 1114 | ||||
| 1115 | /* get ports */ | |||
| 1116 | switch (ss.ss_family) { | |||
| 1117 | case AF_INET2: | |||
| 1118 | clt->clt_port = ((struct sockaddr_in *)&ss)->sin_port; | |||
| 1119 | break; | |||
| 1120 | case AF_INET624: | |||
| 1121 | clt->clt_port = ((struct sockaddr_in6 *)&ss)->sin6_port; | |||
| 1122 | break; | |||
| 1123 | } | |||
| 1124 | ||||
| 1125 | getmonotime(&clt->clt_tv_start); | |||
| 1126 | memcpy(&clt->clt_tv_last, &clt->clt_tv_start, sizeof(clt->clt_tv_last)); | |||
| 1127 | ||||
| 1128 | server_clients++; | |||
| 1129 | SPLAY_INSERT(client_tree, &srv->srv_clients, clt)client_tree_SPLAY_INSERT(&srv->srv_clients, clt); | |||
| 1130 | ||||
| 1131 | /* Pre-allocate output buffer */ | |||
| 1132 | clt->clt_output = evbuffer_new(); | |||
| 1133 | if (clt->clt_output == NULL((void*)0)) { | |||
| 1134 | server_close(clt, "failed to allocate output buffer"); | |||
| 1135 | return; | |||
| 1136 | } | |||
| 1137 | ||||
| 1138 | if (srv->srv_conf.flags & SRVFLAG_TLS0x00002000) { | |||
| 1139 | if (tls_accept_socket(srv->srv_tls_ctx, &clt->clt_tls_ctx, | |||
| 1140 | clt->clt_s) != 0) { | |||
| 1141 | server_close(clt, "failed to accept tls socket"); | |||
| 1142 | return; | |||
| 1143 | } | |||
| 1144 | event_again(&clt->clt_ev, clt->clt_s, EV_TIMEOUT0x01|EV_READ0x02, | |||
| 1145 | server_tls_handshake, &clt->clt_tv_start, | |||
| 1146 | &srv->srv_conf.timeout, clt); | |||
| 1147 | return; | |||
| 1148 | } | |||
| 1149 | ||||
| 1150 | server_input(clt); | |||
| 1151 | return; | |||
| 1152 | ||||
| 1153 | err: | |||
| 1154 | if (s != -1) { | |||
| 1155 | close(s); | |||
| 1156 | free(clt); | |||
| 1157 | /* | |||
| 1158 | * the client struct was not completely set up, but still | |||
| 1159 | * counted as an inflight client. account for this. | |||
| 1160 | */ | |||
| 1161 | server_inflight_dec(NULL((void*)0), __func__); | |||
| 1162 | } | |||
| 1163 | } | |||
| 1164 | ||||
| 1165 | void | |||
| 1166 | server_tls_handshake(int fd, short event, void *arg) | |||
| 1167 | { | |||
| 1168 | struct client *clt = (struct client *)arg; | |||
| 1169 | struct server *srv = (struct server *)clt->clt_srv; | |||
| 1170 | int ret; | |||
| 1171 | ||||
| 1172 | if (event == EV_TIMEOUT0x01) { | |||
| 1173 | server_close(clt, "tls handshake timeout"); | |||
| 1174 | return; | |||
| 1175 | } | |||
| 1176 | ||||
| 1177 | if (srv->srv_tls_ctx == NULL((void*)0) || clt->clt_tls_ctx == NULL((void*)0)) | |||
| 1178 | fatalx("NULL tls context"); | |||
| 1179 | ||||
| 1180 | ret = tls_handshake(clt->clt_tls_ctx); | |||
| 1181 | if (ret == 0) { | |||
| 1182 | server_input(clt); | |||
| 1183 | } else if (ret == TLS_WANT_POLLIN-2) { | |||
| 1184 | event_again(&clt->clt_ev, clt->clt_s, EV_TIMEOUT0x01|EV_READ0x02, | |||
| 1185 | server_tls_handshake, &clt->clt_tv_start, | |||
| 1186 | &srv->srv_conf.timeout, clt); | |||
| 1187 | } else if (ret == TLS_WANT_POLLOUT-3) { | |||
| 1188 | event_again(&clt->clt_ev, clt->clt_s, EV_TIMEOUT0x01|EV_WRITE0x04, | |||
| 1189 | server_tls_handshake, &clt->clt_tv_start, | |||
| 1190 | &srv->srv_conf.timeout, clt); | |||
| 1191 | } else { | |||
| 1192 | log_debug("%s: tls handshake failed - %s", __func__, | |||
| 1193 | tls_error(clt->clt_tls_ctx)); | |||
| 1194 | server_close(clt, "tls handshake failed"); | |||
| 1195 | } | |||
| 1196 | } | |||
| 1197 | ||||
| 1198 | void | |||
| 1199 | server_inflight_dec(struct client *clt, const char *why) | |||
| 1200 | { | |||
| 1201 | if (clt != NULL((void*)0)) { | |||
| 1202 | /* the flight already left inflight mode. */ | |||
| 1203 | if (clt->clt_inflight == 0) | |||
| 1204 | return; | |||
| 1205 | clt->clt_inflight = 0; | |||
| 1206 | } | |||
| 1207 | ||||
| 1208 | /* the file was never opened, thus this was an inflight client. */ | |||
| 1209 | server_inflight--; | |||
| 1210 | DPRINTF("%s: inflight decremented, now %d, %s",do {} while(0) | |||
| 1211 | __func__, server_inflight, why)do {} while(0); | |||
| 1212 | } | |||
| 1213 | ||||
| 1214 | void | |||
| 1215 | server_sendlog(struct server_config *srv_conf, int cmd, const char *emsg, ...) | |||
| 1216 | { | |||
| 1217 | va_list ap; | |||
| 1218 | char *msg; | |||
| 1219 | int ret; | |||
| 1220 | struct iovec iov[2]; | |||
| 1221 | ||||
| 1222 | if (srv_conf->flags & SRVFLAG_SYSLOG0x00000800) { | |||
| 1223 | va_start(ap, emsg)__builtin_va_start(ap, emsg); | |||
| 1224 | if (cmd == IMSG_LOG_ACCESS) | |||
| 1225 | vlog(LOG_INFO6, emsg, ap); | |||
| 1226 | else | |||
| 1227 | vlog(LOG_DEBUG7, emsg, ap); | |||
| 1228 | va_end(ap)__builtin_va_end(ap); | |||
| 1229 | return; | |||
| 1230 | } | |||
| 1231 | ||||
| 1232 | va_start(ap, emsg)__builtin_va_start(ap, emsg); | |||
| 1233 | ret = vasprintf(&msg, emsg, ap); | |||
| 1234 | va_end(ap)__builtin_va_end(ap); | |||
| 1235 | if (ret == -1) { | |||
| 1236 | log_warn("%s: vasprintf", __func__); | |||
| 1237 | return; | |||
| 1238 | } | |||
| 1239 | ||||
| 1240 | iov[0].iov_base = &srv_conf->id; | |||
| 1241 | iov[0].iov_len = sizeof(srv_conf->id); | |||
| 1242 | iov[1].iov_base = msg; | |||
| 1243 | iov[1].iov_len = ret + 1; | |||
| 1244 | ||||
| 1245 | if (proc_composev(httpd_env->sc_ps, PROC_LOGGER, cmd, iov, 2) != 0) { | |||
| 1246 | log_warn("%s: failed to compose imsg", __func__); | |||
| 1247 | free(msg); | |||
| 1248 | return; | |||
| 1249 | } | |||
| 1250 | free(msg); | |||
| 1251 | } | |||
| 1252 | ||||
| 1253 | void | |||
| 1254 | server_log(struct client *clt, const char *msg) | |||
| 1255 | { | |||
| 1256 | char ibuf[HOST_NAME_MAX255+1], obuf[HOST_NAME_MAX255+1]; | |||
| 1257 | struct server_config *srv_conf = clt->clt_srv_conf; | |||
| 1258 | char *ptr = NULL((void*)0), *vmsg = NULL((void*)0); | |||
| 1259 | int debug_cmd = -1; | |||
| 1260 | ||||
| 1261 | switch (srv_conf->logformat) { | |||
| 1262 | case LOG_FORMAT_CONNECTION: | |||
| 1263 | debug_cmd = IMSG_LOG_ACCESS; | |||
| 1264 | break; | |||
| 1265 | default: | |||
| 1266 | if (log_getverbose() > 1) | |||
| 1267 | debug_cmd = IMSG_LOG_ERROR; | |||
| 1268 | if (EVBUFFER_LENGTH(clt->clt_log)(clt->clt_log)->off) { | |||
| 1269 | while ((ptr = | |||
| 1270 | evbuffer_readline(clt->clt_log)) != NULL((void*)0)) { | |||
| 1271 | server_sendlog(srv_conf, | |||
| 1272 | IMSG_LOG_ACCESS, "%s", ptr); | |||
| 1273 | free(ptr); | |||
| 1274 | } | |||
| 1275 | } | |||
| 1276 | break; | |||
| 1277 | } | |||
| 1278 | ||||
| 1279 | if (debug_cmd != -1 && msg != NULL((void*)0)) { | |||
| 1280 | memset(ibuf, 0, sizeof(ibuf)); | |||
| 1281 | memset(obuf, 0, sizeof(obuf)); | |||
| 1282 | (void)print_host(&clt->clt_ss, ibuf, sizeof(ibuf)); | |||
| 1283 | (void)server_http_host(&clt->clt_srv_ss, obuf, sizeof(obuf)); | |||
| 1284 | if (EVBUFFER_LENGTH(clt->clt_log)(clt->clt_log)->off && | |||
| 1285 | evbuffer_add_printf(clt->clt_log, "\n") != -1) | |||
| 1286 | ptr = evbuffer_readline(clt->clt_log); | |||
| 1287 | (void)stravis(&vmsg, msg, HTTPD_LOGVIS0x10|0x08|0x02); | |||
| 1288 | server_sendlog(srv_conf, debug_cmd, "server %s, " | |||
| 1289 | "client %d (%d active), %s:%u -> %s, " | |||
| 1290 | "%s%s%s", srv_conf->name, clt->clt_id, server_clients, | |||
| 1291 | ibuf, ntohs(clt->clt_port)(__uint16_t)(__builtin_constant_p(clt->clt_port) ? (__uint16_t )(((__uint16_t)(clt->clt_port) & 0xffU) << 8 | ( (__uint16_t)(clt->clt_port) & 0xff00U) >> 8) : __swap16md (clt->clt_port)), obuf, vmsg == NULL((void*)0) ? "" : vmsg, | |||
| 1292 | ptr == NULL((void*)0) ? "" : ",", ptr == NULL((void*)0) ? "" : ptr); | |||
| 1293 | free(vmsg); | |||
| 1294 | free(ptr); | |||
| 1295 | } | |||
| 1296 | } | |||
| 1297 | ||||
| 1298 | void | |||
| 1299 | server_close(struct client *clt, const char *msg) | |||
| 1300 | { | |||
| 1301 | struct server *srv = clt->clt_srv; | |||
| 1302 | ||||
| 1303 | SPLAY_REMOVE(client_tree, &srv->srv_clients, clt)client_tree_SPLAY_REMOVE(&srv->srv_clients, clt); | |||
| 1304 | ||||
| 1305 | /* free the HTTP descriptors incl. headers */ | |||
| 1306 | server_close_http(clt); | |||
| 1307 | ||||
| 1308 | /* tls_close must be called before the underlying socket is closed. */ | |||
| 1309 | if (clt->clt_tls_ctx != NULL((void*)0)) | |||
| 1310 | tls_close(clt->clt_tls_ctx); /* XXX - error handling */ | |||
| 1311 | tls_free(clt->clt_tls_ctx); | |||
| 1312 | ||||
| 1313 | event_del(&clt->clt_ev); | |||
| 1314 | if (clt->clt_bev != NULL((void*)0)) | |||
| 1315 | bufferevent_disable(clt->clt_bev, EV_READ0x02|EV_WRITE0x04); | |||
| 1316 | if (clt->clt_srvbev != NULL((void*)0)) | |||
| 1317 | bufferevent_disable(clt->clt_srvbev, EV_READ0x02|EV_WRITE0x04); | |||
| 1318 | ||||
| 1319 | server_log(clt, msg); | |||
| 1320 | ||||
| 1321 | if (clt->clt_bev != NULL((void*)0)) | |||
| 1322 | bufferevent_free(clt->clt_bev); | |||
| 1323 | if (clt->clt_output != NULL((void*)0)) | |||
| 1324 | evbuffer_free(clt->clt_output); | |||
| 1325 | if (clt->clt_srvevb != NULL((void*)0)) | |||
| 1326 | evbuffer_free(clt->clt_srvevb); | |||
| 1327 | ||||
| 1328 | if (clt->clt_srvbev != NULL((void*)0)) | |||
| 1329 | bufferevent_free(clt->clt_srvbev); | |||
| 1330 | ||||
| 1331 | if (clt->clt_fd != -1) | |||
| 1332 | close(clt->clt_fd); | |||
| 1333 | if (clt->clt_s != -1) | |||
| 1334 | close(clt->clt_s); | |||
| 1335 | ||||
| 1336 | server_inflight_dec(clt, __func__); | |||
| 1337 | ||||
| 1338 | if (clt->clt_log != NULL((void*)0)) | |||
| 1339 | evbuffer_free(clt->clt_log); | |||
| 1340 | ||||
| 1341 | free(clt); | |||
| 1342 | server_clients--; | |||
| 1343 | } | |||
| 1344 | ||||
| 1345 | int | |||
| 1346 | server_dispatch_parent(int fd, struct privsep_proc *p, struct imsg *imsg) | |||
| 1347 | { | |||
| 1348 | struct server *srv; | |||
| 1349 | struct server_tls_ticket key; | |||
| 1350 | ||||
| 1351 | switch (imsg->hdr.type) { | |||
| 1352 | case IMSG_CFG_MEDIA: | |||
| 1353 | config_getmedia(httpd_env, imsg); | |||
| 1354 | break; | |||
| 1355 | case IMSG_CFG_AUTH: | |||
| 1356 | config_getauth(httpd_env, imsg); | |||
| 1357 | break; | |||
| 1358 | case IMSG_CFG_SERVER: | |||
| 1359 | config_getserver(httpd_env, imsg); | |||
| 1360 | break; | |||
| 1361 | case IMSG_CFG_TLS: | |||
| 1362 | config_getserver_tls(httpd_env, imsg); | |||
| 1363 | break; | |||
| 1364 | case IMSG_CFG_FCGI: | |||
| 1365 | config_getserver_fcgiparams(httpd_env, imsg); | |||
| 1366 | break; | |||
| 1367 | case IMSG_CFG_DONE: | |||
| 1368 | config_getcfg(httpd_env, imsg); | |||
| 1369 | break; | |||
| 1370 | case IMSG_CTL_START: | |||
| 1371 | server_launch(); | |||
| 1372 | break; | |||
| 1373 | case IMSG_CTL_RESET: | |||
| 1374 | config_getreset(httpd_env, imsg); | |||
| 1375 | break; | |||
| 1376 | case IMSG_TLSTICKET_REKEY: | |||
| 1377 | IMSG_SIZE_CHECK(imsg, (&key))do { if (((imsg)->hdr.len - sizeof(struct imsg_hdr)) < sizeof (*(&key))) fatalx("bad length imsg received"); } while (0 ); | |||
| 1378 | memcpy(&key, imsg->data, sizeof(key)); | |||
| 1379 | /* apply to the right server */ | |||
| 1380 | srv = server_byid(key.tt_id); | |||
| 1381 | if (srv) { | |||
| 1382 | tls_config_add_ticket_key(srv->srv_tls_config, | |||
| 1383 | key.tt_keyrev, key.tt_key, sizeof(key.tt_key)); | |||
| 1384 | } | |||
| 1385 | break; | |||
| 1386 | default: | |||
| 1387 | return (-1); | |||
| 1388 | } | |||
| 1389 | ||||
| 1390 | return (0); | |||
| 1391 | } | |||
| 1392 | ||||
| 1393 | int | |||
| 1394 | server_dispatch_logger(int fd, struct privsep_proc *p, struct imsg *imsg) | |||
| 1395 | { | |||
| 1396 | switch (imsg->hdr.type) { | |||
| 1397 | default: | |||
| 1398 | return (-1); | |||
| 1399 | } | |||
| 1400 | ||||
| 1401 | return (0); | |||
| 1402 | } | |||
| 1403 | ||||
| 1404 | int | |||
| 1405 | server_bufferevent_add(struct event *ev, int timeout) | |||
| 1406 | { | |||
| 1407 | struct timeval tv, *ptv = NULL((void*)0); | |||
| 1408 | ||||
| 1409 | if (timeout) { | |||
| 1410 | timerclear(&tv)(&tv)->tv_sec = (&tv)->tv_usec = 0; | |||
| 1411 | tv.tv_sec = timeout; | |||
| 1412 | ptv = &tv; | |||
| 1413 | } | |||
| 1414 | ||||
| 1415 | return (event_add(ev, ptv)); | |||
| 1416 | } | |||
| 1417 | ||||
| 1418 | int | |||
| 1419 | server_bufferevent_printf(struct client *clt, const char *fmt, ...) | |||
| 1420 | { | |||
| 1421 | int ret; | |||
| 1422 | va_list ap; | |||
| 1423 | char *str; | |||
| 1424 | ||||
| 1425 | va_start(ap, fmt)__builtin_va_start(ap, fmt); | |||
| 1426 | ret = vasprintf(&str, fmt, ap); | |||
| 1427 | va_end(ap)__builtin_va_end(ap); | |||
| 1428 | ||||
| 1429 | if (ret == -1) | |||
| 1430 | return (ret); | |||
| 1431 | ||||
| 1432 | ret = server_bufferevent_print(clt, str); | |||
| 1433 | free(str); | |||
| 1434 | ||||
| 1435 | return (ret); | |||
| 1436 | } | |||
| 1437 | ||||
| 1438 | int | |||
| 1439 | server_bufferevent_print(struct client *clt, const char *str) | |||
| 1440 | { | |||
| 1441 | if (clt->clt_bev == NULL((void*)0)) | |||
| 1442 | return (evbuffer_add(clt->clt_output, str, strlen(str))); | |||
| 1443 | return (bufferevent_write(clt->clt_bev, str, strlen(str))); | |||
| 1444 | } | |||
| 1445 | ||||
| 1446 | int | |||
| 1447 | server_bufferevent_write_buffer(struct client *clt, struct evbuffer *buf) | |||
| 1448 | { | |||
| 1449 | if (clt->clt_bev == NULL((void*)0)) | |||
| 1450 | return (evbuffer_add_buffer(clt->clt_output, buf)); | |||
| 1451 | return (bufferevent_write_buffer(clt->clt_bev, buf)); | |||
| 1452 | } | |||
| 1453 | ||||
| 1454 | int | |||
| 1455 | server_bufferevent_write_chunk(struct client *clt, | |||
| 1456 | struct evbuffer *buf, size_t size) | |||
| 1457 | { | |||
| 1458 | int ret; | |||
| 1459 | ret = server_bufferevent_write(clt, buf->buffer, size); | |||
| 1460 | if (ret != -1) | |||
| 1461 | evbuffer_drain(buf, size); | |||
| 1462 | return (ret); | |||
| 1463 | } | |||
| 1464 | ||||
| 1465 | int | |||
| 1466 | server_bufferevent_write(struct client *clt, void *data, size_t size) | |||
| 1467 | { | |||
| 1468 | if (clt->clt_bev == NULL((void*)0)) | |||
| 1469 | return (evbuffer_add(clt->clt_output, data, size)); | |||
| 1470 | return (bufferevent_write(clt->clt_bev, data, size)); | |||
| 1471 | } | |||
| 1472 | ||||
| 1473 | int | |||
| 1474 | server_client_cmp(struct client *a, struct client *b) | |||
| 1475 | { | |||
| 1476 | return ((int)a->clt_id - b->clt_id); | |||
| 1477 | } | |||
| 1478 | ||||
| 1479 | SPLAY_GENERATE(client_tree, client, clt_nodes, server_client_cmp)struct client * client_tree_SPLAY_INSERT(struct client_tree * head, struct client *elm) { if (((head)->sph_root == ((void *)0))) { (elm)->clt_nodes.spe_left = (elm)->clt_nodes.spe_right = ((void*)0); } else { int __comp; client_tree_SPLAY(head, elm ); __comp = (server_client_cmp)(elm, (head)->sph_root); if (__comp < 0) { (elm)->clt_nodes.spe_left = ((head)-> sph_root)->clt_nodes.spe_left; (elm)->clt_nodes.spe_right = (head)->sph_root; ((head)->sph_root)->clt_nodes.spe_left = ((void*)0); } else if (__comp > 0) { (elm)->clt_nodes .spe_right = ((head)->sph_root)->clt_nodes.spe_right; ( elm)->clt_nodes.spe_left = (head)->sph_root; ((head)-> sph_root)->clt_nodes.spe_right = ((void*)0); } else return ((head)->sph_root); } (head)->sph_root = (elm); return (((void*)0)); } struct client * client_tree_SPLAY_REMOVE(struct client_tree *head, struct client *elm) { struct client *__tmp ; if (((head)->sph_root == ((void*)0))) return (((void*)0) ); client_tree_SPLAY(head, elm); if ((server_client_cmp)(elm, (head)->sph_root) == 0) { if (((head)->sph_root)->clt_nodes .spe_left == ((void*)0)) { (head)->sph_root = ((head)-> sph_root)->clt_nodes.spe_right; } else { __tmp = ((head)-> sph_root)->clt_nodes.spe_right; (head)->sph_root = ((head )->sph_root)->clt_nodes.spe_left; client_tree_SPLAY(head , elm); ((head)->sph_root)->clt_nodes.spe_right = __tmp ; } return (elm); } return (((void*)0)); } void client_tree_SPLAY (struct client_tree *head, struct client *elm) { struct client __node, *__left, *__right, *__tmp; int __comp; (&__node) ->clt_nodes.spe_left = (&__node)->clt_nodes.spe_right = ((void*)0); __left = __right = &__node; while ((__comp = (server_client_cmp)(elm, (head)->sph_root))) { if (__comp < 0) { __tmp = ((head)->sph_root)->clt_nodes.spe_left ; if (__tmp == ((void*)0)) break; if ((server_client_cmp)(elm , __tmp) < 0){ do { ((head)->sph_root)->clt_nodes.spe_left = (__tmp)->clt_nodes.spe_right; (__tmp)->clt_nodes.spe_right = (head)->sph_root; (head)->sph_root = __tmp; } while ( 0); if (((head)->sph_root)->clt_nodes.spe_left == ((void *)0)) break; } do { (__right)->clt_nodes.spe_left = (head) ->sph_root; __right = (head)->sph_root; (head)->sph_root = ((head)->sph_root)->clt_nodes.spe_left; } while (0); } else if (__comp > 0) { __tmp = ((head)->sph_root)-> clt_nodes.spe_right; if (__tmp == ((void*)0)) break; if ((server_client_cmp )(elm, __tmp) > 0){ do { ((head)->sph_root)->clt_nodes .spe_right = (__tmp)->clt_nodes.spe_left; (__tmp)->clt_nodes .spe_left = (head)->sph_root; (head)->sph_root = __tmp; } while (0); if (((head)->sph_root)->clt_nodes.spe_right == ((void*)0)) break; } do { (__left)->clt_nodes.spe_right = (head)->sph_root; __left = (head)->sph_root; (head)-> sph_root = ((head)->sph_root)->clt_nodes.spe_right; } while (0); } } do { (__left)->clt_nodes.spe_right = ((head)-> sph_root)->clt_nodes.spe_left; (__right)->clt_nodes.spe_left = ((head)->sph_root)->clt_nodes.spe_right; ((head)-> sph_root)->clt_nodes.spe_left = (&__node)->clt_nodes .spe_right; ((head)->sph_root)->clt_nodes.spe_right = ( &__node)->clt_nodes.spe_left; } while (0); } void client_tree_SPLAY_MINMAX (struct client_tree *head, int __comp) { struct client __node , *__left, *__right, *__tmp; (&__node)->clt_nodes.spe_left = (&__node)->clt_nodes.spe_right = ((void*)0); __left = __right = &__node; while (1) { if (__comp < 0) { __tmp = ((head)->sph_root)->clt_nodes.spe_left; if (__tmp == ((void*)0)) break; if (__comp < 0){ do { ((head)->sph_root )->clt_nodes.spe_left = (__tmp)->clt_nodes.spe_right; ( __tmp)->clt_nodes.spe_right = (head)->sph_root; (head)-> sph_root = __tmp; } while (0); if (((head)->sph_root)-> clt_nodes.spe_left == ((void*)0)) break; } do { (__right)-> clt_nodes.spe_left = (head)->sph_root; __right = (head)-> sph_root; (head)->sph_root = ((head)->sph_root)->clt_nodes .spe_left; } while (0); } else if (__comp > 0) { __tmp = ( (head)->sph_root)->clt_nodes.spe_right; if (__tmp == (( void*)0)) break; if (__comp > 0) { do { ((head)->sph_root )->clt_nodes.spe_right = (__tmp)->clt_nodes.spe_left; ( __tmp)->clt_nodes.spe_left = (head)->sph_root; (head)-> sph_root = __tmp; } while (0); if (((head)->sph_root)-> clt_nodes.spe_right == ((void*)0)) break; } do { (__left)-> clt_nodes.spe_right = (head)->sph_root; __left = (head)-> sph_root; (head)->sph_root = ((head)->sph_root)->clt_nodes .spe_right; } while (0); } } do { (__left)->clt_nodes.spe_right = ((head)->sph_root)->clt_nodes.spe_left; (__right)-> clt_nodes.spe_left = ((head)->sph_root)->clt_nodes.spe_right ; ((head)->sph_root)->clt_nodes.spe_left = (&__node )->clt_nodes.spe_right; ((head)->sph_root)->clt_nodes .spe_right = (&__node)->clt_nodes.spe_left; } while (0 ); }; |