1 /* $OpenBSD: httpd.h,v 1.146 2020/02/09 09:44:04 florian Exp $ */ 2 3 /* 4 * Copyright (c) 2006 - 2015 Reyk Floeter <reyk@openbsd.org> 5 * Copyright (c) 2006, 2007 Pierre-Yves Ritschard <pyr@openbsd.org> 6 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #ifndef _HTTPD_H 22 #define _HTTPD_H 23 24 #include <sys/types.h> 25 #include <sys/socket.h> 26 #include <sys/queue.h> 27 #include <sys/tree.h> 28 #include <sys/time.h> 29 30 #include <net/if.h> 31 #include <netinet/in.h> 32 33 #include <stdarg.h> 34 #include <limits.h> 35 #include <event.h> 36 #include <imsg.h> 37 #include <tls.h> 38 #include <vis.h> 39 40 #include "patterns.h" 41 42 #ifndef nitems 43 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0])) 44 #endif 45 46 #define CONF_FILE "/etc/httpd.conf" 47 #define HTTPD_SOCKET "/var/run/httpd.sock" 48 #define HTTPD_USER "www" 49 #define HTTPD_SERVERNAME "OpenBSD httpd" 50 #define HTTPD_DOCROOT "/htdocs" 51 #define HTTPD_INDEX "index.html" 52 #define HTTPD_FCGI_SOCKET "/run/slowcgi.sock" 53 #define HTTPD_LOGROOT "/logs" 54 #define HTTPD_ACCESS_LOG "access.log" 55 #define HTTPD_ERROR_LOG "error.log" 56 #define HTTPD_MAX_ALIAS_IP 16 57 #define HTTPD_REALM_MAX 255 58 #define HTTPD_LOCATION_MAX 255 59 #define HTTPD_DEFAULT_TYPE { "bin", "application", "octet-stream", NULL } 60 #define HTTPD_LOGVIS VIS_NL|VIS_TAB|VIS_CSTYLE 61 #define HTTPD_TLS_CERT "/etc/ssl/server.crt" 62 #define HTTPD_TLS_KEY "/etc/ssl/private/server.key" 63 #define HTTPD_TLS_CONFIG_MAX 511 64 #define HTTPD_TLS_CIPHERS "compat" 65 #define HTTPD_TLS_DHE_PARAMS "none" 66 #define HTTPD_TLS_ECDHE_CURVES "default" 67 #define HTTPD_FCGI_NAME_MAX 511 68 #define HTTPD_FCGI_VAL_MAX 511 69 #define FD_RESERVE 5 70 71 #define SERVER_MAX_CLIENTS 1024 72 #define SERVER_TIMEOUT 600 73 #define SERVER_REQUESTTIMEOUT 60 74 #define SERVER_CACHESIZE -1 /* use default size */ 75 #define SERVER_NUMPROC 3 76 #define SERVER_MAXHEADERLENGTH 8192 77 #define SERVER_MAXREQUESTS 100 /* max requests per connection */ 78 #define SERVER_MAXREQUESTBODY 1048576 /* 1M */ 79 #define SERVER_BACKLOG 10 80 #define SERVER_OUTOF_FD_RETRIES 5 81 #define SERVER_MAX_PREFETCH 256 82 #define SERVER_MIN_PREFETCHED 32 83 #define SERVER_HSTS_DEFAULT_AGE 31536000 84 #define SERVER_MAX_RANGES 4 85 #define SERVER_DEF_TLS_LIFETIME (2 * 3600) 86 #define SERVER_MIN_TLS_LIFETIME (60) 87 #define SERVER_MAX_TLS_LIFETIME (24 * 3600) 88 89 #define MEDIATYPE_NAMEMAX 128 /* file name extension */ 90 #define MEDIATYPE_TYPEMAX 64 /* length of type/subtype */ 91 92 #define CONFIG_RELOAD 0x00 93 #define CONFIG_MEDIA 0x01 94 #define CONFIG_SERVERS 0x02 95 #define CONFIG_AUTH 0x04 96 #define CONFIG_ALL 0xff 97 98 #define FCGI_CONTENT_SIZE 65535 99 100 #define PROC_PARENT_SOCK_FILENO 3 101 #define PROC_MAX_INSTANCES 32 102 103 enum httpchunk { 104 TOREAD_UNLIMITED = -1, 105 TOREAD_HTTP_HEADER = -2, 106 TOREAD_HTTP_CHUNK_LENGTH = -3, 107 TOREAD_HTTP_CHUNK_TRAILER = -4, 108 TOREAD_HTTP_NONE = -5, 109 TOREAD_HTTP_RANGE = TOREAD_HTTP_CHUNK_LENGTH 110 }; 111 112 #if DEBUG 113 #define DPRINTF log_debug 114 #else 115 #define DPRINTF(x...) do {} while(0) 116 #endif 117 118 struct ctl_flags { 119 uint8_t cf_opts; 120 uint32_t cf_flags; 121 uint8_t cf_tls_sid[TLS_MAX_SESSION_ID_LENGTH]; 122 }; 123 124 enum key_type { 125 KEY_TYPE_NONE = 0, 126 KEY_TYPE_COOKIE, 127 KEY_TYPE_HEADER, 128 KEY_TYPE_PATH, 129 KEY_TYPE_QUERY, 130 KEY_TYPE_URL, 131 KEY_TYPE_MAX 132 }; 133 134 TAILQ_HEAD(kvlist, kv); 135 RB_HEAD(kvtree, kv); 136 137 struct kv { 138 char *kv_key; 139 char *kv_value; 140 141 enum key_type kv_type; 142 143 #define KV_FLAG_INVALID 0x01 144 #define KV_FLAG_GLOBBING 0x02 145 uint8_t kv_flags; 146 147 struct kvlist kv_children; 148 struct kv *kv_parent; 149 TAILQ_ENTRY(kv) kv_entry; 150 151 RB_ENTRY(kv) kv_node; 152 }; 153 154 struct portrange { 155 in_port_t val[2]; 156 uint8_t op; 157 }; 158 159 struct address { 160 struct sockaddr_storage ss; 161 int ipproto; 162 int prefixlen; 163 struct portrange port; 164 char ifname[IFNAMSIZ]; 165 TAILQ_ENTRY(address) entry; 166 }; 167 TAILQ_HEAD(addresslist, address); 168 169 /* initially control.h */ 170 struct control_sock { 171 const char *cs_name; 172 struct event cs_ev; 173 struct event cs_evt; 174 int cs_fd; 175 int cs_restricted; 176 void *cs_env; 177 178 TAILQ_ENTRY(control_sock) cs_entry; 179 }; 180 TAILQ_HEAD(control_socks, control_sock); 181 182 struct { 183 struct event ev; 184 int fd; 185 } control_state; 186 187 struct imsgev { 188 struct imsgbuf ibuf; 189 void (*handler)(int, short, void *); 190 struct event ev; 191 struct privsep_proc *proc; 192 void *data; 193 short events; 194 }; 195 196 #define IMSG_SIZE_CHECK(imsg, p) do { \ 197 if (IMSG_DATA_SIZE(imsg) < sizeof(*p)) \ 198 fatalx("bad length imsg received"); \ 199 } while (0) 200 #define IMSG_DATA_SIZE(imsg) ((imsg)->hdr.len - IMSG_HEADER_SIZE) 201 #define MAX_IMSG_DATA_SIZE (MAX_IMSGSIZE - IMSG_HEADER_SIZE) 202 203 struct ctl_conn { 204 TAILQ_ENTRY(ctl_conn) entry; 205 uint8_t flags; 206 unsigned int waiting; 207 #define CTL_CONN_NOTIFY 0x01 208 struct imsgev iev; 209 210 }; 211 TAILQ_HEAD(ctl_connlist, ctl_conn); 212 213 enum imsg_type { 214 IMSG_NONE, 215 IMSG_CTL_OK, 216 IMSG_CTL_FAIL, 217 IMSG_CTL_VERBOSE, 218 IMSG_CTL_PROCFD, 219 IMSG_CTL_RESET, 220 IMSG_CTL_SHUTDOWN, 221 IMSG_CTL_RELOAD, 222 IMSG_CTL_NOTIFY, 223 IMSG_CTL_END, 224 IMSG_CTL_START, 225 IMSG_CTL_REOPEN, 226 IMSG_CFG_SERVER, 227 IMSG_CFG_TLS, 228 IMSG_CFG_MEDIA, 229 IMSG_CFG_AUTH, 230 IMSG_CFG_FCGI, 231 IMSG_CFG_DONE, 232 IMSG_LOG_ACCESS, 233 IMSG_LOG_ERROR, 234 IMSG_LOG_OPEN, 235 IMSG_TLSTICKET_REKEY 236 }; 237 238 enum privsep_procid { 239 PROC_ALL = -1, 240 PROC_PARENT = 0, 241 PROC_SERVER, 242 PROC_LOGGER, 243 PROC_MAX 244 } privsep_process; 245 246 /* Attach the control socket to the following process */ 247 #define PROC_CONTROL PROC_LOGGER 248 249 struct privsep_pipes { 250 int *pp_pipes[PROC_MAX]; 251 }; 252 253 struct privsep { 254 struct privsep_pipes *ps_pipes[PROC_MAX]; 255 struct privsep_pipes *ps_pp; 256 257 struct imsgev *ps_ievs[PROC_MAX]; 258 const char *ps_title[PROC_MAX]; 259 uint8_t ps_what[PROC_MAX]; 260 261 unsigned int ps_instances[PROC_MAX]; 262 unsigned int ps_instance; 263 264 struct control_sock ps_csock; 265 struct control_socks ps_rcsocks; 266 267 /* Event and signal handlers */ 268 struct event ps_evsigint; 269 struct event ps_evsigterm; 270 struct event ps_evsigchld; 271 struct event ps_evsighup; 272 struct event ps_evsigpipe; 273 struct event ps_evsigusr1; 274 275 int ps_noaction; 276 struct passwd *ps_pw; 277 struct httpd *ps_env; 278 }; 279 280 struct privsep_proc { 281 const char *p_title; 282 enum privsep_procid p_id; 283 int (*p_cb)(int, struct privsep_proc *, 284 struct imsg *); 285 void (*p_init)(struct privsep *, 286 struct privsep_proc *); 287 const char *p_chroot; 288 struct privsep *p_ps; 289 void (*p_shutdown)(void); 290 struct passwd *p_pw; 291 }; 292 293 struct privsep_fd { 294 enum privsep_procid pf_procid; 295 unsigned int pf_instance; 296 }; 297 298 enum fcgistate { 299 FCGI_READ_HEADER, 300 FCGI_READ_CONTENT, 301 FCGI_READ_PADDING 302 }; 303 304 struct fcgi_data { 305 enum fcgistate state; 306 int toread; 307 int padding_len; 308 int type; 309 int chunked; 310 int end; 311 int status; 312 int headersdone; 313 }; 314 315 struct range { 316 off_t start; 317 off_t end; 318 }; 319 320 struct range_data { 321 struct range range[SERVER_MAX_RANGES]; 322 int range_count; 323 int range_index; 324 off_t range_toread; 325 326 /* For the Content headers in each part */ 327 struct media_type *range_media; 328 size_t range_total; 329 }; 330 331 struct client { 332 uint32_t clt_id; 333 pid_t clt_pid; 334 void *clt_srv; 335 void *clt_srv_conf; 336 uint32_t clt_srv_id; 337 struct sockaddr_storage clt_srv_ss; 338 struct str_match clt_srv_match; 339 340 int clt_s; 341 in_port_t clt_port; 342 struct sockaddr_storage clt_ss; 343 struct bufferevent *clt_bev; 344 struct evbuffer *clt_output; 345 struct event clt_ev; 346 void *clt_descreq; 347 void *clt_descresp; 348 int clt_sndbufsiz; 349 uint64_t clt_boundary; 350 351 int clt_fd; 352 struct tls *clt_tls_ctx; 353 struct bufferevent *clt_srvbev; 354 int clt_srvbev_throttled; 355 356 off_t clt_toread; 357 size_t clt_headerlen; 358 int clt_headersdone; 359 unsigned int clt_persist; 360 unsigned int clt_pipelining; 361 int clt_line; 362 int clt_done; 363 int clt_chunk; 364 int clt_inflight; 365 struct range_data clt_ranges; 366 struct fcgi_data clt_fcgi; 367 char *clt_remote_user; 368 struct evbuffer *clt_srvevb; 369 370 struct evbuffer *clt_log; 371 struct timeval clt_timeout; 372 struct timeval clt_tv_start; 373 struct timeval clt_tv_last; 374 struct event clt_inflightevt; 375 376 SPLAY_ENTRY(client) clt_nodes; 377 }; 378 SPLAY_HEAD(client_tree, client); 379 380 #define SRVFLAG_INDEX 0x00000001 381 #define SRVFLAG_NO_INDEX 0x00000002 382 #define SRVFLAG_AUTO_INDEX 0x00000004 383 #define SRVFLAG_NO_AUTO_INDEX 0x00000008 384 #define SRVFLAG_ROOT 0x00000010 385 #define SRVFLAG_LOCATION 0x00000020 386 #define SRVFLAG_FCGI 0x00000040 387 #define SRVFLAG_NO_FCGI 0x00000080 388 #define SRVFLAG_LOG 0x00000100 389 #define SRVFLAG_NO_LOG 0x00000200 390 #define SRVFLAG_SOCKET 0x00000400 391 #define SRVFLAG_SYSLOG 0x00000800 392 #define SRVFLAG_NO_SYSLOG 0x00001000 393 #define SRVFLAG_TLS 0x00002000 394 #define SRVFLAG_ACCESS_LOG 0x00004000 395 #define SRVFLAG_ERROR_LOG 0x00008000 396 #define SRVFLAG_AUTH 0x00010000 397 #define SRVFLAG_NO_AUTH 0x00020000 398 #define SRVFLAG_BLOCK 0x00040000 399 #define SRVFLAG_NO_BLOCK 0x00080000 400 #define SRVFLAG_LOCATION_MATCH 0x00100000 401 #define SRVFLAG_SERVER_MATCH 0x00200000 402 #define SRVFLAG_SERVER_HSTS 0x00400000 403 #define SRVFLAG_DEFAULT_TYPE 0x00800000 404 #define SRVFLAG_PATH_REWRITE 0x01000000 405 #define SRVFLAG_NO_PATH_REWRITE 0x02000000 406 407 #define SRVFLAG_BITS \ 408 "\10\01INDEX\02NO_INDEX\03AUTO_INDEX\04NO_AUTO_INDEX" \ 409 "\05ROOT\06LOCATION\07FCGI\10NO_FCGI\11LOG\12NO_LOG\13SOCKET" \ 410 "\14SYSLOG\15NO_SYSLOG\16TLS\17ACCESS_LOG\20ERROR_LOG" \ 411 "\21AUTH\22NO_AUTH\23BLOCK\24NO_BLOCK\25LOCATION_MATCH" \ 412 "\26SERVER_MATCH\27SERVER_HSTS\30DEFAULT_TYPE\31PATH\32NO_PATH" 413 414 #define TCPFLAG_NODELAY 0x01 415 #define TCPFLAG_NNODELAY 0x02 416 #define TCPFLAG_SACK 0x04 417 #define TCPFLAG_NSACK 0x08 418 #define TCPFLAG_BUFSIZ 0x10 419 #define TCPFLAG_IPTTL 0x20 420 #define TCPFLAG_IPMINTTL 0x40 421 #define TCPFLAG_NSPLICE 0x80 422 #define TCPFLAG_DEFAULT 0x00 423 424 #define TCPFLAG_BITS \ 425 "\10\01NODELAY\02NO_NODELAY\03SACK\04NO_SACK" \ 426 "\05SOCKET_BUFFER_SIZE\06IP_TTL\07IP_MINTTL\10NO_SPLICE" 427 428 #define HSTSFLAG_SUBDOMAINS 0x01 429 #define HSTSFLAG_PRELOAD 0x02 430 #define HSTSFLAG_BITS "\10\01SUBDOMAINS\02PRELOAD" 431 432 #define TLSFLAG_CA 0x01 433 #define TLSFLAG_CRL 0x02 434 #define TLSFLAG_OPTIONAL 0x04 435 #define TLSFLAG_BITS "\10\01CA\02CRL\03OPTIONAL" 436 437 enum log_format { 438 LOG_FORMAT_COMMON, 439 LOG_FORMAT_COMBINED, 440 LOG_FORMAT_CONNECTION, 441 LOG_FORMAT_FORWARDED 442 }; 443 444 struct log_file { 445 char log_name[PATH_MAX]; 446 int log_fd; 447 uint32_t log_id; 448 TAILQ_ENTRY(log_file) log_entry; 449 }; 450 TAILQ_HEAD(log_files, log_file) log_files; 451 452 struct media_type { 453 char media_name[MEDIATYPE_NAMEMAX]; 454 char media_type[MEDIATYPE_TYPEMAX]; 455 char media_subtype[MEDIATYPE_TYPEMAX]; 456 char *media_encoding; 457 RB_ENTRY(media_type) media_entry; 458 }; 459 RB_HEAD(mediatypes, media_type); 460 461 struct auth { 462 char auth_htpasswd[PATH_MAX]; 463 uint32_t auth_id; 464 TAILQ_ENTRY(auth) auth_entry; 465 }; 466 TAILQ_HEAD(serverauth, auth); 467 468 struct server_tls_ticket { 469 uint32_t tt_id; 470 uint32_t tt_keyrev; 471 unsigned char tt_key[TLS_TICKET_KEY_SIZE]; 472 }; 473 474 struct fastcgi_param { 475 char name[HTTPD_FCGI_NAME_MAX]; 476 char value[HTTPD_FCGI_VAL_MAX]; 477 478 TAILQ_ENTRY(fastcgi_param) entry; 479 }; 480 TAILQ_HEAD(server_fcgiparams, fastcgi_param); 481 482 struct server_config { 483 uint32_t id; 484 uint32_t parent_id; 485 char name[HOST_NAME_MAX+1]; 486 char location[HTTPD_LOCATION_MAX]; 487 char root[PATH_MAX]; 488 char path[PATH_MAX]; 489 char index[PATH_MAX]; 490 char socket[PATH_MAX]; 491 char accesslog[PATH_MAX]; 492 char errorlog[PATH_MAX]; 493 struct media_type default_type; 494 495 in_port_t port; 496 struct sockaddr_storage ss; 497 int prefixlen; 498 struct timeval timeout; 499 struct timeval requesttimeout; 500 uint32_t maxrequests; 501 size_t maxrequestbody; 502 503 uint8_t *tls_ca; 504 char *tls_ca_file; 505 size_t tls_ca_len; 506 uint8_t *tls_cert; 507 size_t tls_cert_len; 508 char *tls_cert_file; 509 char tls_ciphers[HTTPD_TLS_CONFIG_MAX]; 510 uint8_t *tls_crl; 511 char *tls_crl_file; 512 size_t tls_crl_len; 513 char tls_dhe_params[HTTPD_TLS_CONFIG_MAX]; 514 char tls_ecdhe_curves[HTTPD_TLS_CONFIG_MAX]; 515 uint8_t tls_flags; 516 uint8_t *tls_key; 517 size_t tls_key_len; 518 char *tls_key_file; 519 uint32_t tls_protocols; 520 uint8_t *tls_ocsp_staple; 521 size_t tls_ocsp_staple_len; 522 char *tls_ocsp_staple_file; 523 struct server_tls_ticket tls_ticket_key; 524 int tls_ticket_lifetime; 525 526 uint32_t flags; 527 int strip; 528 uint8_t tcpflags; 529 int tcpbufsiz; 530 int tcpbacklog; 531 uint8_t tcpipttl; 532 uint8_t tcpipminttl; 533 534 enum log_format logformat; 535 struct log_file *logaccess; 536 struct log_file *logerror; 537 538 char auth_realm[HTTPD_REALM_MAX]; 539 uint32_t auth_id; 540 const struct auth *auth; 541 542 int return_code; 543 char *return_uri; 544 off_t return_uri_len; 545 546 int hsts_max_age; 547 uint8_t hsts_flags; 548 549 struct server_fcgiparams fcgiparams; 550 int fcgistrip; 551 552 TAILQ_ENTRY(server_config) entry; 553 }; 554 TAILQ_HEAD(serverhosts, server_config); 555 556 enum tls_config_type { 557 TLS_CFG_CA, 558 TLS_CFG_CERT, 559 TLS_CFG_CRL, 560 TLS_CFG_KEY, 561 TLS_CFG_OCSP_STAPLE, 562 }; 563 564 struct tls_config { 565 uint32_t id; 566 567 enum tls_config_type tls_type; 568 size_t tls_len; 569 size_t tls_chunk_len; 570 size_t tls_chunk_offset; 571 }; 572 573 struct server { 574 TAILQ_ENTRY(server) srv_entry; 575 struct server_config srv_conf; 576 struct serverhosts srv_hosts; 577 578 int srv_s; 579 struct event srv_ev; 580 struct event srv_evt; 581 582 struct tls *srv_tls_ctx; 583 struct tls_config *srv_tls_config; 584 585 struct client_tree srv_clients; 586 }; 587 TAILQ_HEAD(serverlist, server); 588 589 struct httpd { 590 uint8_t sc_opts; 591 uint32_t sc_flags; 592 const char *sc_conffile; 593 struct event sc_ev; 594 uint16_t sc_prefork_server; 595 uint16_t sc_id; 596 int sc_paused; 597 char *sc_chroot; 598 char *sc_logdir; 599 600 uint8_t sc_tls_sid[TLS_MAX_SESSION_ID_LENGTH]; 601 602 struct serverlist *sc_servers; 603 struct mediatypes *sc_mediatypes; 604 struct media_type sc_default_type; 605 struct serverauth *sc_auth; 606 607 struct privsep *sc_ps; 608 int sc_reload; 609 }; 610 611 #define HTTPD_OPT_VERBOSE 0x01 612 #define HTTPD_OPT_NOACTION 0x04 613 614 /* control.c */ 615 int control_init(struct privsep *, struct control_sock *); 616 int control_listen(struct control_sock *); 617 void control_cleanup(struct control_sock *); 618 void control_dispatch_imsg(int, short, void *); 619 void control_imsg_forward(struct privsep *, struct imsg *); 620 struct ctl_conn * 621 control_connbyfd(int); 622 623 extern struct ctl_connlist ctl_conns; 624 625 /* parse.y */ 626 int parse_config(const char *, struct httpd *); 627 int load_config(const char *, struct httpd *); 628 int cmdline_symset(char *); 629 630 /* server.c */ 631 void server(struct privsep *, struct privsep_proc *); 632 int server_tls_cmp(struct server *, struct server *, int); 633 int server_tls_load_ca(struct server *); 634 int server_tls_load_crl(struct server *); 635 int server_tls_load_keypair(struct server *); 636 int server_tls_load_ocsp(struct server *); 637 void server_generate_ticket_key(struct server_config *); 638 int server_privinit(struct server *); 639 void server_purge(struct server *); 640 void serverconfig_free(struct server_config *); 641 void serverconfig_reset(struct server_config *); 642 int server_socket_af(struct sockaddr_storage *, in_port_t); 643 in_port_t 644 server_socket_getport(struct sockaddr_storage *); 645 int server_socket_connect(struct sockaddr_storage *, in_port_t, 646 struct server_config *); 647 void server_write(struct bufferevent *, void *); 648 void server_read(struct bufferevent *, void *); 649 void server_error(struct bufferevent *, short, void *); 650 void server_log(struct client *, const char *); 651 void server_sendlog(struct server_config *, int, const char *, ...) 652 __attribute__((__format__ (printf, 3, 4))); 653 void server_close(struct client *, const char *); 654 void server_dump(struct client *, const void *, size_t); 655 int server_client_cmp(struct client *, struct client *); 656 int server_bufferevent_printf(struct client *, const char *, ...) 657 __attribute__((__format__ (printf, 2, 3))); 658 int server_bufferevent_print(struct client *, const char *); 659 int server_bufferevent_write_buffer(struct client *, 660 struct evbuffer *); 661 int server_bufferevent_write_chunk(struct client *, 662 struct evbuffer *, size_t); 663 int server_bufferevent_add(struct event *, int); 664 int server_bufferevent_write(struct client *, void *, size_t); 665 struct server * 666 server_byaddr(struct sockaddr *, in_port_t); 667 struct server_config * 668 serverconfig_byid(uint32_t); 669 int server_foreach(int (*)(struct server *, 670 struct server_config *, void *), void *); 671 struct server * 672 server_match(struct server *, int); 673 674 SPLAY_PROTOTYPE(client_tree, client, clt_nodes, server_client_cmp); 675 676 /* server_http.c */ 677 void server_http_init(struct server *); 678 void server_http(void); 679 int server_httpdesc_init(struct client *); 680 void server_read_http(struct bufferevent *, void *); 681 void server_abort_http(struct client *, unsigned int, const char *); 682 unsigned int 683 server_httpmethod_byname(const char *); 684 const char 685 *server_httpmethod_byid(unsigned int); 686 const char 687 *server_httperror_byid(unsigned int); 688 void server_read_httpcontent(struct bufferevent *, void *); 689 void server_read_httpchunks(struct bufferevent *, void *); 690 void server_read_httprange(struct bufferevent *, void *); 691 int server_writeheader_http(struct client *clt, struct kv *, void *); 692 int server_headers(struct client *, void *, 693 int (*)(struct client *, struct kv *, void *), void *); 694 int server_writeresponse_http(struct client *); 695 int server_response_http(struct client *, unsigned int, 696 struct media_type *, off_t, time_t); 697 void server_reset_http(struct client *); 698 void server_close_http(struct client *); 699 int server_response(struct httpd *, struct client *); 700 const char * 701 server_root_strip(const char *, int); 702 struct server_config * 703 server_getlocation(struct client *, const char *); 704 const char * 705 server_http_host(struct sockaddr_storage *, char *, size_t); 706 char *server_http_parsehost(char *, char *, size_t, int *); 707 ssize_t server_http_time(time_t, char *, size_t); 708 int server_log_http(struct client *, unsigned int, size_t); 709 710 /* server_file.c */ 711 int server_file(struct httpd *, struct client *); 712 void server_file_error(struct bufferevent *, short, void *); 713 714 /* server_fcgi.c */ 715 int server_fcgi(struct httpd *, struct client *); 716 int fcgi_add_stdin(struct client *, struct evbuffer *); 717 718 /* httpd.c */ 719 void event_again(struct event *, int, short, 720 void (*)(int, short, void *), 721 struct timeval *, struct timeval *, void *); 722 int expand_string(char *, size_t, const char *, const char *); 723 const char *url_decode(char *); 724 char *url_encode(const char *); 725 const char *canonicalize_host(const char *, char *, size_t); 726 const char *canonicalize_path(const char *, char *, size_t); 727 size_t path_info(char *); 728 char *escape_html(const char *); 729 void socket_rlimit(int); 730 char *evbuffer_getline(struct evbuffer *); 731 char *get_string(uint8_t *, size_t); 732 void *get_data(uint8_t *, size_t); 733 int sockaddr_cmp(struct sockaddr *, struct sockaddr *, int); 734 struct in6_addr *prefixlen2mask6(uint8_t, uint32_t *); 735 uint32_t prefixlen2mask(uint8_t); 736 int accept_reserve(int, struct sockaddr *, socklen_t *, int, 737 volatile int *); 738 struct kv *kv_add(struct kvtree *, char *, char *); 739 int kv_set(struct kv *, char *, ...) 740 __attribute__((__format__ (printf, 2, 3))); 741 int kv_setkey(struct kv *, char *, ...) 742 __attribute__((__format__ (printf, 2, 3))); 743 void kv_delete(struct kvtree *, struct kv *); 744 struct kv *kv_extend(struct kvtree *, struct kv *, char *); 745 void kv_purge(struct kvtree *); 746 void kv_free(struct kv *); 747 struct kv *kv_inherit(struct kv *, struct kv *); 748 int kv_log(struct evbuffer *, struct kv *); 749 struct kv *kv_find(struct kvtree *, struct kv *); 750 int kv_cmp(struct kv *, struct kv *); 751 struct media_type 752 *media_add(struct mediatypes *, struct media_type *); 753 void media_delete(struct mediatypes *, struct media_type *); 754 void media_purge(struct mediatypes *); 755 struct media_type * 756 media_find(struct mediatypes *, const char *); 757 struct media_type * 758 media_find_config(struct httpd *, struct server_config *, 759 const char *); 760 int media_cmp(struct media_type *, struct media_type *); 761 RB_PROTOTYPE(kvtree, kv, kv_node, kv_cmp); 762 RB_PROTOTYPE(mediatypes, media_type, media_entry, media_cmp); 763 struct auth *auth_add(struct serverauth *, struct auth *); 764 struct auth *auth_byid(struct serverauth *, uint32_t); 765 void auth_free(struct serverauth *, struct auth *); 766 const char *print_host(struct sockaddr_storage *, char *, size_t); 767 const char *print_time(struct timeval *, struct timeval *, char *, size_t); 768 const char *printb_flags(const uint32_t, const char *); 769 void getmonotime(struct timeval *); 770 771 extern struct httpd *httpd_env; 772 773 /* log.c */ 774 void log_init(int, int); 775 void log_procinit(const char *); 776 void log_setverbose(int); 777 int log_getverbose(void); 778 void log_warn(const char *, ...) 779 __attribute__((__format__ (printf, 1, 2))); 780 void log_warnx(const char *, ...) 781 __attribute__((__format__ (printf, 1, 2))); 782 void log_info(const char *, ...) 783 __attribute__((__format__ (printf, 1, 2))); 784 void log_debug(const char *, ...) 785 __attribute__((__format__ (printf, 1, 2))); 786 void logit(int, const char *, ...) 787 __attribute__((__format__ (printf, 2, 3))); 788 void vlog(int, const char *, va_list) 789 __attribute__((__format__ (printf, 2, 0))); 790 __dead void fatal(const char *, ...) 791 __attribute__((__format__ (printf, 1, 2))); 792 __dead void fatalx(const char *, ...) 793 __attribute__((__format__ (printf, 1, 2))); 794 795 /* proc.c */ 796 enum privsep_procid 797 proc_getid(struct privsep_proc *, unsigned int, const char *); 798 void proc_init(struct privsep *, struct privsep_proc *, unsigned int, int, 799 int, char **, enum privsep_procid); 800 void proc_kill(struct privsep *); 801 void proc_connect(struct privsep *); 802 void proc_dispatch(int, short event, void *); 803 void proc_run(struct privsep *, struct privsep_proc *, 804 struct privsep_proc *, unsigned int, 805 void (*)(struct privsep *, struct privsep_proc *, void *), void *); 806 void proc_range(struct privsep *, enum privsep_procid, int *, int *); 807 int proc_compose_imsg(struct privsep *, enum privsep_procid, int, 808 u_int16_t, u_int32_t, int, void *, u_int16_t); 809 int proc_compose(struct privsep *, enum privsep_procid, 810 uint16_t, void *, uint16_t); 811 int proc_composev_imsg(struct privsep *, enum privsep_procid, int, 812 u_int16_t, u_int32_t, int, const struct iovec *, int); 813 int proc_composev(struct privsep *, enum privsep_procid, 814 uint16_t, const struct iovec *, int); 815 int proc_forward_imsg(struct privsep *, struct imsg *, 816 enum privsep_procid, int); 817 struct imsgbuf * 818 proc_ibuf(struct privsep *, enum privsep_procid, int); 819 struct imsgev * 820 proc_iev(struct privsep *, enum privsep_procid, int); 821 int proc_flush_imsg(struct privsep *, enum privsep_procid, int); 822 void imsg_event_add(struct imsgev *); 823 int imsg_compose_event(struct imsgev *, uint16_t, uint32_t, 824 pid_t, int, void *, uint16_t); 825 int imsg_composev_event(struct imsgev *, uint16_t, uint32_t, 826 pid_t, int, const struct iovec *, int); 827 828 /* config.c */ 829 int config_init(struct httpd *); 830 void config_purge(struct httpd *, unsigned int); 831 int config_setreset(struct httpd *, unsigned int); 832 int config_getreset(struct httpd *, struct imsg *); 833 int config_getcfg(struct httpd *, struct imsg *); 834 int config_setserver(struct httpd *, struct server *); 835 int config_setserver_tls(struct httpd *, struct server *); 836 int config_setserver_fcgiparams(struct httpd *, struct server *); 837 int config_getserver(struct httpd *, struct imsg *); 838 int config_getserver_tls(struct httpd *, struct imsg *); 839 int config_getserver_fcgiparams(struct httpd *, struct imsg *); 840 int config_setmedia(struct httpd *, struct media_type *); 841 int config_getmedia(struct httpd *, struct imsg *); 842 int config_setauth(struct httpd *, struct auth *); 843 int config_getauth(struct httpd *, struct imsg *); 844 845 /* logger.c */ 846 void logger(struct privsep *, struct privsep_proc *); 847 int logger_open_priv(struct imsg *); 848 849 #endif /* _HTTPD_H */ 850