1 /* $OpenBSD: httpd.h,v 1.157 2021/05/17 09:26:52 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 #define FCGI_DEFAULT_PORT "9000" 100 101 #define PROC_PARENT_SOCK_FILENO 3 102 #define PROC_MAX_INSTANCES 32 103 104 enum httpchunk { 105 TOREAD_UNLIMITED = -1, 106 TOREAD_HTTP_HEADER = -2, 107 TOREAD_HTTP_CHUNK_LENGTH = -3, 108 TOREAD_HTTP_CHUNK_TRAILER = -4, 109 TOREAD_HTTP_NONE = -5, 110 TOREAD_HTTP_RANGE = TOREAD_HTTP_CHUNK_LENGTH 111 }; 112 113 #if DEBUG 114 #define DPRINTF log_debug 115 #else 116 #define DPRINTF(x...) do {} while(0) 117 #endif 118 119 struct ctl_flags { 120 uint8_t cf_opts; 121 uint32_t cf_flags; 122 uint8_t cf_tls_sid[TLS_MAX_SESSION_ID_LENGTH]; 123 }; 124 125 TAILQ_HEAD(kvlist, kv); 126 RB_HEAD(kvtree, kv); 127 128 struct kv { 129 char *kv_key; 130 char *kv_value; 131 132 #define KV_FLAG_INVALID 0x01 133 #define KV_FLAG_GLOBBING 0x02 134 uint8_t kv_flags; 135 136 struct kvlist kv_children; 137 struct kv *kv_parent; 138 TAILQ_ENTRY(kv) kv_entry; 139 140 RB_ENTRY(kv) kv_node; 141 }; 142 143 struct portrange { 144 in_port_t val[2]; 145 uint8_t op; 146 }; 147 148 struct address { 149 struct sockaddr_storage ss; 150 int ipproto; 151 int prefixlen; 152 struct portrange port; 153 char ifname[IFNAMSIZ]; 154 TAILQ_ENTRY(address) entry; 155 }; 156 TAILQ_HEAD(addresslist, address); 157 158 /* initially control.h */ 159 struct control_sock { 160 const char *cs_name; 161 struct event cs_ev; 162 struct event cs_evt; 163 int cs_fd; 164 int cs_restricted; 165 void *cs_env; 166 167 TAILQ_ENTRY(control_sock) cs_entry; 168 }; 169 TAILQ_HEAD(control_socks, control_sock); 170 171 extern struct { 172 struct event ev; 173 int fd; 174 } control_state; 175 176 struct imsgev { 177 struct imsgbuf ibuf; 178 void (*handler)(int, short, void *); 179 struct event ev; 180 struct privsep_proc *proc; 181 void *data; 182 short events; 183 }; 184 185 #define IMSG_SIZE_CHECK(imsg, p) do { \ 186 if (IMSG_DATA_SIZE(imsg) < sizeof(*p)) \ 187 fatalx("bad length imsg received"); \ 188 } while (0) 189 #define IMSG_DATA_SIZE(imsg) ((imsg)->hdr.len - IMSG_HEADER_SIZE) 190 #define MAX_IMSG_DATA_SIZE (MAX_IMSGSIZE - IMSG_HEADER_SIZE) 191 192 struct ctl_conn { 193 TAILQ_ENTRY(ctl_conn) entry; 194 uint8_t flags; 195 unsigned int waiting; 196 #define CTL_CONN_NOTIFY 0x01 197 struct imsgev iev; 198 199 }; 200 TAILQ_HEAD(ctl_connlist, ctl_conn); 201 202 enum imsg_type { 203 IMSG_NONE, 204 IMSG_CTL_OK, 205 IMSG_CTL_FAIL, 206 IMSG_CTL_VERBOSE, 207 IMSG_CTL_PROCFD, 208 IMSG_CTL_RESET, 209 IMSG_CTL_SHUTDOWN, 210 IMSG_CTL_RELOAD, 211 IMSG_CTL_NOTIFY, 212 IMSG_CTL_END, 213 IMSG_CTL_START, 214 IMSG_CTL_REOPEN, 215 IMSG_CFG_SERVER, 216 IMSG_CFG_TLS, 217 IMSG_CFG_MEDIA, 218 IMSG_CFG_AUTH, 219 IMSG_CFG_FCGI, 220 IMSG_CFG_DONE, 221 IMSG_LOG_ACCESS, 222 IMSG_LOG_ERROR, 223 IMSG_LOG_OPEN, 224 IMSG_TLSTICKET_REKEY 225 }; 226 227 enum privsep_procid { 228 PROC_ALL = -1, 229 PROC_PARENT = 0, 230 PROC_SERVER, 231 PROC_LOGGER, 232 PROC_MAX 233 }; 234 extern enum privsep_procid privsep_process; 235 236 /* Attach the control socket to the following process */ 237 #define PROC_CONTROL PROC_LOGGER 238 239 struct privsep_pipes { 240 int *pp_pipes[PROC_MAX]; 241 }; 242 243 struct privsep { 244 struct privsep_pipes *ps_pipes[PROC_MAX]; 245 struct privsep_pipes *ps_pp; 246 247 struct imsgev *ps_ievs[PROC_MAX]; 248 const char *ps_title[PROC_MAX]; 249 uint8_t ps_what[PROC_MAX]; 250 251 unsigned int ps_instances[PROC_MAX]; 252 unsigned int ps_instance; 253 254 struct control_sock ps_csock; 255 struct control_socks ps_rcsocks; 256 257 /* Event and signal handlers */ 258 struct event ps_evsigint; 259 struct event ps_evsigterm; 260 struct event ps_evsigchld; 261 struct event ps_evsighup; 262 struct event ps_evsigpipe; 263 struct event ps_evsigusr1; 264 265 int ps_noaction; 266 struct passwd *ps_pw; 267 struct httpd *ps_env; 268 }; 269 270 struct privsep_proc { 271 const char *p_title; 272 enum privsep_procid p_id; 273 int (*p_cb)(int, struct privsep_proc *, 274 struct imsg *); 275 void (*p_init)(struct privsep *, 276 struct privsep_proc *); 277 const char *p_chroot; 278 struct privsep *p_ps; 279 void (*p_shutdown)(void); 280 struct passwd *p_pw; 281 }; 282 283 struct privsep_fd { 284 enum privsep_procid pf_procid; 285 unsigned int pf_instance; 286 }; 287 288 enum fcgistate { 289 FCGI_READ_HEADER, 290 FCGI_READ_CONTENT, 291 FCGI_READ_PADDING 292 }; 293 294 struct fcgi_data { 295 enum fcgistate state; 296 int toread; 297 int padding_len; 298 int type; 299 int chunked; 300 int end; 301 int status; 302 int headersdone; 303 int headerssent; 304 }; 305 306 struct range { 307 off_t start; 308 off_t end; 309 }; 310 311 struct range_data { 312 struct range range[SERVER_MAX_RANGES]; 313 int range_count; 314 int range_index; 315 off_t range_toread; 316 317 /* For the Content headers in each part */ 318 struct media_type *range_media; 319 size_t range_total; 320 }; 321 322 struct client { 323 uint32_t clt_id; 324 pid_t clt_pid; 325 void *clt_srv; 326 void *clt_srv_conf; 327 uint32_t clt_srv_id; 328 struct sockaddr_storage clt_srv_ss; 329 struct str_match clt_srv_match; 330 331 int clt_s; 332 in_port_t clt_port; 333 struct sockaddr_storage clt_ss; 334 struct bufferevent *clt_bev; 335 struct evbuffer *clt_output; 336 struct event clt_ev; 337 void *clt_descreq; 338 void *clt_descresp; 339 int clt_sndbufsiz; 340 uint64_t clt_boundary; 341 342 int clt_fd; 343 struct tls *clt_tls_ctx; 344 struct bufferevent *clt_srvbev; 345 int clt_srvbev_throttled; 346 347 off_t clt_toread; 348 size_t clt_headerlen; 349 int clt_headersdone; 350 unsigned int clt_persist; 351 unsigned int clt_pipelining; 352 int clt_line; 353 int clt_done; 354 int clt_chunk; 355 int clt_inflight; 356 struct range_data clt_ranges; 357 struct fcgi_data clt_fcgi; 358 char *clt_remote_user; 359 struct evbuffer *clt_srvevb; 360 361 struct evbuffer *clt_log; 362 struct timeval clt_timeout; 363 struct timeval clt_tv_start; 364 struct timeval clt_tv_last; 365 struct event clt_inflightevt; 366 367 SPLAY_ENTRY(client) clt_nodes; 368 }; 369 SPLAY_HEAD(client_tree, client); 370 371 #define SRVFLAG_INDEX 0x00000001 372 #define SRVFLAG_NO_INDEX 0x00000002 373 #define SRVFLAG_AUTO_INDEX 0x00000004 374 #define SRVFLAG_NO_AUTO_INDEX 0x00000008 375 #define SRVFLAG_ROOT 0x00000010 376 #define SRVFLAG_LOCATION 0x00000020 377 #define SRVFLAG_FCGI 0x00000040 378 #define SRVFLAG_NO_FCGI 0x00000080 379 #define SRVFLAG_LOG 0x00000100 380 #define SRVFLAG_NO_LOG 0x00000200 381 #define SRVFLAG_SYSLOG 0x00000800 382 #define SRVFLAG_NO_SYSLOG 0x00001000 383 #define SRVFLAG_TLS 0x00002000 384 #define SRVFLAG_ACCESS_LOG 0x00004000 385 #define SRVFLAG_ERROR_LOG 0x00008000 386 #define SRVFLAG_AUTH 0x00010000 387 #define SRVFLAG_NO_AUTH 0x00020000 388 #define SRVFLAG_BLOCK 0x00040000 389 #define SRVFLAG_NO_BLOCK 0x00080000 390 #define SRVFLAG_LOCATION_MATCH 0x00100000 391 #define SRVFLAG_SERVER_MATCH 0x00200000 392 #define SRVFLAG_SERVER_HSTS 0x00400000 393 #define SRVFLAG_DEFAULT_TYPE 0x00800000 394 #define SRVFLAG_PATH_REWRITE 0x01000000 395 #define SRVFLAG_NO_PATH_REWRITE 0x02000000 396 #define SRVFLAG_LOCATION_FOUND 0x40000000 397 #define SRVFLAG_LOCATION_NOT_FOUND 0x80000000 398 399 #define SRVFLAG_BITS \ 400 "\10\01INDEX\02NO_INDEX\03AUTO_INDEX\04NO_AUTO_INDEX" \ 401 "\05ROOT\06LOCATION\07FCGI\10NO_FCGI\11LOG\12NO_LOG" \ 402 "\14SYSLOG\15NO_SYSLOG\16TLS\17ACCESS_LOG\20ERROR_LOG" \ 403 "\21AUTH\22NO_AUTH\23BLOCK\24NO_BLOCK\25LOCATION_MATCH" \ 404 "\26SERVER_MATCH\27SERVER_HSTS\30DEFAULT_TYPE\31PATH\32NO_PATH" \ 405 "\37LOCATION_FOUND\40LOCATION_NOT_FOUND" 406 407 #define TCPFLAG_NODELAY 0x01 408 #define TCPFLAG_NNODELAY 0x02 409 #define TCPFLAG_SACK 0x04 410 #define TCPFLAG_NSACK 0x08 411 #define TCPFLAG_BUFSIZ 0x10 412 #define TCPFLAG_IPTTL 0x20 413 #define TCPFLAG_IPMINTTL 0x40 414 #define TCPFLAG_NSPLICE 0x80 415 #define TCPFLAG_DEFAULT 0x00 416 417 #define TCPFLAG_BITS \ 418 "\10\01NODELAY\02NO_NODELAY\03SACK\04NO_SACK" \ 419 "\05SOCKET_BUFFER_SIZE\06IP_TTL\07IP_MINTTL\10NO_SPLICE" 420 421 #define HSTSFLAG_SUBDOMAINS 0x01 422 #define HSTSFLAG_PRELOAD 0x02 423 #define HSTSFLAG_BITS "\10\01SUBDOMAINS\02PRELOAD" 424 425 #define TLSFLAG_CA 0x01 426 #define TLSFLAG_CRL 0x02 427 #define TLSFLAG_OPTIONAL 0x04 428 #define TLSFLAG_BITS "\10\01CA\02CRL\03OPTIONAL" 429 430 enum log_format { 431 LOG_FORMAT_COMMON, 432 LOG_FORMAT_COMBINED, 433 LOG_FORMAT_CONNECTION, 434 LOG_FORMAT_FORWARDED 435 }; 436 437 struct log_file { 438 char log_name[PATH_MAX]; 439 int log_fd; 440 uint32_t log_id; 441 TAILQ_ENTRY(log_file) log_entry; 442 }; 443 extern TAILQ_HEAD(log_files, log_file) log_files; 444 445 struct media_type { 446 char media_name[MEDIATYPE_NAMEMAX]; 447 char media_type[MEDIATYPE_TYPEMAX]; 448 char media_subtype[MEDIATYPE_TYPEMAX]; 449 char *media_encoding; 450 RB_ENTRY(media_type) media_entry; 451 }; 452 RB_HEAD(mediatypes, media_type); 453 454 struct auth { 455 char auth_htpasswd[PATH_MAX]; 456 uint32_t auth_id; 457 TAILQ_ENTRY(auth) auth_entry; 458 }; 459 TAILQ_HEAD(serverauth, auth); 460 461 struct server_tls_ticket { 462 uint32_t tt_id; 463 uint32_t tt_keyrev; 464 unsigned char tt_key[TLS_TICKET_KEY_SIZE]; 465 }; 466 467 struct fastcgi_param { 468 char name[HTTPD_FCGI_NAME_MAX]; 469 char value[HTTPD_FCGI_VAL_MAX]; 470 471 TAILQ_ENTRY(fastcgi_param) entry; 472 }; 473 TAILQ_HEAD(server_fcgiparams, fastcgi_param); 474 475 struct server_config { 476 uint32_t id; 477 uint32_t parent_id; 478 char name[HOST_NAME_MAX+1]; 479 char location[HTTPD_LOCATION_MAX]; 480 char root[PATH_MAX]; 481 char path[PATH_MAX]; 482 char index[PATH_MAX]; 483 char accesslog[PATH_MAX]; 484 char errorlog[PATH_MAX]; 485 struct media_type default_type; 486 487 struct sockaddr_storage fastcgi_ss; 488 489 in_port_t port; 490 struct sockaddr_storage ss; 491 int prefixlen; 492 struct timeval timeout; 493 struct timeval requesttimeout; 494 uint32_t maxrequests; 495 size_t maxrequestbody; 496 497 uint8_t *tls_ca; 498 char *tls_ca_file; 499 size_t tls_ca_len; 500 uint8_t *tls_cert; 501 size_t tls_cert_len; 502 char *tls_cert_file; 503 char tls_ciphers[HTTPD_TLS_CONFIG_MAX]; 504 uint8_t *tls_crl; 505 char *tls_crl_file; 506 size_t tls_crl_len; 507 char tls_dhe_params[HTTPD_TLS_CONFIG_MAX]; 508 char tls_ecdhe_curves[HTTPD_TLS_CONFIG_MAX]; 509 uint8_t tls_flags; 510 uint8_t *tls_key; 511 size_t tls_key_len; 512 char *tls_key_file; 513 uint32_t tls_protocols; 514 uint8_t *tls_ocsp_staple; 515 size_t tls_ocsp_staple_len; 516 char *tls_ocsp_staple_file; 517 struct server_tls_ticket tls_ticket_key; 518 int tls_ticket_lifetime; 519 520 uint32_t flags; 521 int strip; 522 uint8_t tcpflags; 523 int tcpbufsiz; 524 int tcpbacklog; 525 uint8_t tcpipttl; 526 uint8_t tcpipminttl; 527 528 enum log_format logformat; 529 struct log_file *logaccess; 530 struct log_file *logerror; 531 532 char auth_realm[HTTPD_REALM_MAX]; 533 uint32_t auth_id; 534 const struct auth *auth; 535 536 int return_code; 537 char *return_uri; 538 off_t return_uri_len; 539 540 int hsts_max_age; 541 uint8_t hsts_flags; 542 543 struct server_fcgiparams fcgiparams; 544 int fcgistrip; 545 546 TAILQ_ENTRY(server_config) entry; 547 }; 548 TAILQ_HEAD(serverhosts, server_config); 549 550 enum tls_config_type { 551 TLS_CFG_CA, 552 TLS_CFG_CERT, 553 TLS_CFG_CRL, 554 TLS_CFG_KEY, 555 TLS_CFG_OCSP_STAPLE, 556 }; 557 558 struct tls_config { 559 uint32_t id; 560 561 enum tls_config_type tls_type; 562 size_t tls_len; 563 size_t tls_chunk_len; 564 size_t tls_chunk_offset; 565 }; 566 567 struct server { 568 TAILQ_ENTRY(server) srv_entry; 569 struct server_config srv_conf; 570 struct serverhosts srv_hosts; 571 572 int srv_s; 573 struct event srv_ev; 574 struct event srv_evt; 575 576 struct tls *srv_tls_ctx; 577 struct tls_config *srv_tls_config; 578 579 struct client_tree srv_clients; 580 }; 581 TAILQ_HEAD(serverlist, server); 582 583 struct httpd { 584 uint8_t sc_opts; 585 uint32_t sc_flags; 586 const char *sc_conffile; 587 struct event sc_ev; 588 uint16_t sc_prefork_server; 589 uint16_t sc_id; 590 int sc_paused; 591 char *sc_chroot; 592 char *sc_logdir; 593 594 uint8_t sc_tls_sid[TLS_MAX_SESSION_ID_LENGTH]; 595 596 struct serverlist *sc_servers; 597 struct mediatypes *sc_mediatypes; 598 struct media_type sc_default_type; 599 struct serverauth *sc_auth; 600 601 struct privsep *sc_ps; 602 int sc_reload; 603 }; 604 605 #define HTTPD_OPT_VERBOSE 0x01 606 #define HTTPD_OPT_NOACTION 0x04 607 608 /* control.c */ 609 int control_init(struct privsep *, struct control_sock *); 610 int control_listen(struct control_sock *); 611 void control_cleanup(struct control_sock *); 612 void control_dispatch_imsg(int, short, void *); 613 void control_imsg_forward(struct privsep *, struct imsg *); 614 struct ctl_conn * 615 control_connbyfd(int); 616 617 /* parse.y */ 618 int parse_config(const char *, struct httpd *); 619 int load_config(const char *, struct httpd *); 620 int cmdline_symset(char *); 621 622 /* server.c */ 623 void server(struct privsep *, struct privsep_proc *); 624 int server_tls_cmp(struct server *, struct server *); 625 int server_tls_load_ca(struct server *); 626 int server_tls_load_crl(struct server *); 627 int server_tls_load_keypair(struct server *); 628 int server_tls_load_ocsp(struct server *); 629 void server_generate_ticket_key(struct server_config *); 630 int server_privinit(struct server *); 631 void server_purge(struct server *); 632 void serverconfig_free(struct server_config *); 633 void serverconfig_reset(struct server_config *); 634 int server_socket_af(struct sockaddr_storage *, in_port_t); 635 in_port_t 636 server_socket_getport(struct sockaddr_storage *); 637 int server_socket_connect(struct sockaddr_storage *, in_port_t, 638 struct server_config *); 639 void server_write(struct bufferevent *, void *); 640 void server_read(struct bufferevent *, void *); 641 void server_error(struct bufferevent *, short, void *); 642 void server_log(struct client *, const char *); 643 void server_sendlog(struct server_config *, int, const char *, ...) 644 __attribute__((__format__ (printf, 3, 4))); 645 void server_close(struct client *, const char *); 646 void server_dump(struct client *, const void *, size_t); 647 int server_client_cmp(struct client *, struct client *); 648 int server_bufferevent_printf(struct client *, const char *, ...) 649 __attribute__((__format__ (printf, 2, 3))); 650 int server_bufferevent_print(struct client *, const char *); 651 int server_bufferevent_write_buffer(struct client *, 652 struct evbuffer *); 653 int server_bufferevent_write_chunk(struct client *, 654 struct evbuffer *, size_t); 655 int server_bufferevent_add(struct event *, int); 656 int server_bufferevent_write(struct client *, void *, size_t); 657 struct server * 658 server_byaddr(struct sockaddr *, in_port_t); 659 struct server_config * 660 serverconfig_byid(uint32_t); 661 int server_foreach(int (*)(struct server *, 662 struct server_config *, void *), void *); 663 struct server * 664 server_match(struct server *, int); 665 666 SPLAY_PROTOTYPE(client_tree, client, clt_nodes, server_client_cmp); 667 668 /* server_http.c */ 669 void server_http_init(struct server *); 670 void server_http(void); 671 int server_httpdesc_init(struct client *); 672 void server_read_http(struct bufferevent *, void *); 673 void server_abort_http(struct client *, unsigned int, const char *); 674 unsigned int 675 server_httpmethod_byname(const char *); 676 const char 677 *server_httpmethod_byid(unsigned int); 678 const char 679 *server_httperror_byid(unsigned int); 680 void server_read_httpcontent(struct bufferevent *, void *); 681 void server_read_httpchunks(struct bufferevent *, void *); 682 void server_read_httprange(struct bufferevent *, void *); 683 int server_writeheader_http(struct client *clt, struct kv *, void *); 684 int server_headers(struct client *, void *, 685 int (*)(struct client *, struct kv *, void *), void *); 686 int server_writeresponse_http(struct client *); 687 int server_response_http(struct client *, unsigned int, 688 struct media_type *, off_t, time_t); 689 void server_reset_http(struct client *); 690 void server_close_http(struct client *); 691 int server_response(struct httpd *, struct client *); 692 const char * 693 server_root_strip(const char *, int); 694 struct server_config * 695 server_getlocation(struct client *, const char *); 696 int server_locationaccesstest(struct server_config *, const char *); 697 const char * 698 server_http_host(struct sockaddr_storage *, char *, size_t); 699 char *server_http_parsehost(char *, char *, size_t, int *); 700 ssize_t server_http_time(time_t, char *, size_t); 701 int server_log_http(struct client *, unsigned int, size_t); 702 703 /* server_file.c */ 704 int server_file(struct httpd *, struct client *); 705 void server_file_error(struct bufferevent *, short, void *); 706 707 /* server_fcgi.c */ 708 int server_fcgi(struct httpd *, struct client *); 709 int fcgi_add_stdin(struct client *, struct evbuffer *); 710 711 /* httpd.c */ 712 void event_again(struct event *, int, short, 713 void (*)(int, short, void *), 714 struct timeval *, struct timeval *, void *); 715 int expand_string(char *, size_t, const char *, const char *); 716 const char *url_decode(char *); 717 char *url_encode(const char *); 718 const char *canonicalize_path(const char *, char *, size_t); 719 size_t path_info(char *); 720 char *escape_html(const char *); 721 void socket_rlimit(int); 722 char *evbuffer_getline(struct evbuffer *); 723 char *get_string(uint8_t *, size_t); 724 void *get_data(uint8_t *, size_t); 725 int sockaddr_cmp(struct sockaddr *, struct sockaddr *, int); 726 struct in6_addr *prefixlen2mask6(uint8_t, uint32_t *); 727 uint32_t prefixlen2mask(uint8_t); 728 int accept_reserve(int, struct sockaddr *, socklen_t *, int, 729 volatile int *); 730 struct kv *kv_add(struct kvtree *, char *, char *); 731 int kv_set(struct kv *, char *, ...) 732 __attribute__((__format__ (printf, 2, 3))); 733 int kv_setkey(struct kv *, char *, ...) 734 __attribute__((__format__ (printf, 2, 3))); 735 void kv_delete(struct kvtree *, struct kv *); 736 struct kv *kv_extend(struct kvtree *, struct kv *, char *); 737 void kv_purge(struct kvtree *); 738 void kv_free(struct kv *); 739 struct kv *kv_find(struct kvtree *, struct kv *); 740 int kv_cmp(struct kv *, struct kv *); 741 struct media_type 742 *media_add(struct mediatypes *, struct media_type *); 743 void media_delete(struct mediatypes *, struct media_type *); 744 void media_purge(struct mediatypes *); 745 struct media_type * 746 media_find(struct mediatypes *, const char *); 747 struct media_type * 748 media_find_config(struct httpd *, struct server_config *, 749 const char *); 750 int media_cmp(struct media_type *, struct media_type *); 751 RB_PROTOTYPE(kvtree, kv, kv_node, kv_cmp); 752 RB_PROTOTYPE(mediatypes, media_type, media_entry, media_cmp); 753 struct auth *auth_add(struct serverauth *, struct auth *); 754 struct auth *auth_byid(struct serverauth *, uint32_t); 755 void auth_free(struct serverauth *, struct auth *); 756 const char *print_host(struct sockaddr_storage *, char *, size_t); 757 const char *printb_flags(const uint32_t, const char *); 758 void getmonotime(struct timeval *); 759 760 extern struct httpd *httpd_env; 761 762 /* log.c */ 763 void log_init(int, int); 764 void log_procinit(const char *); 765 void log_setverbose(int); 766 int log_getverbose(void); 767 void log_warn(const char *, ...) 768 __attribute__((__format__ (printf, 1, 2))); 769 void log_warnx(const char *, ...) 770 __attribute__((__format__ (printf, 1, 2))); 771 void log_info(const char *, ...) 772 __attribute__((__format__ (printf, 1, 2))); 773 void log_debug(const char *, ...) 774 __attribute__((__format__ (printf, 1, 2))); 775 void logit(int, const char *, ...) 776 __attribute__((__format__ (printf, 2, 3))); 777 void vlog(int, const char *, va_list) 778 __attribute__((__format__ (printf, 2, 0))); 779 __dead void fatal(const char *, ...) 780 __attribute__((__format__ (printf, 1, 2))); 781 __dead void fatalx(const char *, ...) 782 __attribute__((__format__ (printf, 1, 2))); 783 784 /* proc.c */ 785 enum privsep_procid 786 proc_getid(struct privsep_proc *, unsigned int, const char *); 787 void proc_init(struct privsep *, struct privsep_proc *, unsigned int, int, 788 int, char **, enum privsep_procid); 789 void proc_kill(struct privsep *); 790 void proc_connect(struct privsep *); 791 void proc_dispatch(int, short event, void *); 792 void proc_run(struct privsep *, struct privsep_proc *, 793 struct privsep_proc *, unsigned int, 794 void (*)(struct privsep *, struct privsep_proc *, void *), void *); 795 void proc_range(struct privsep *, enum privsep_procid, int *, int *); 796 int proc_compose_imsg(struct privsep *, enum privsep_procid, int, 797 u_int16_t, u_int32_t, int, void *, u_int16_t); 798 int proc_compose(struct privsep *, enum privsep_procid, 799 uint16_t, void *, uint16_t); 800 int proc_composev_imsg(struct privsep *, enum privsep_procid, int, 801 u_int16_t, u_int32_t, int, const struct iovec *, int); 802 int proc_composev(struct privsep *, enum privsep_procid, 803 uint16_t, const struct iovec *, int); 804 int proc_forward_imsg(struct privsep *, struct imsg *, 805 enum privsep_procid, int); 806 struct imsgbuf * 807 proc_ibuf(struct privsep *, enum privsep_procid, int); 808 struct imsgev * 809 proc_iev(struct privsep *, enum privsep_procid, int); 810 int proc_flush_imsg(struct privsep *, enum privsep_procid, int); 811 void imsg_event_add(struct imsgev *); 812 int imsg_compose_event(struct imsgev *, uint16_t, uint32_t, 813 pid_t, int, void *, uint16_t); 814 int imsg_composev_event(struct imsgev *, uint16_t, uint32_t, 815 pid_t, int, const struct iovec *, int); 816 817 /* config.c */ 818 int config_init(struct httpd *); 819 void config_purge(struct httpd *, unsigned int); 820 int config_setreset(struct httpd *, unsigned int); 821 int config_getreset(struct httpd *, struct imsg *); 822 int config_getcfg(struct httpd *, struct imsg *); 823 int config_setserver(struct httpd *, struct server *); 824 int config_setserver_tls(struct httpd *, struct server *); 825 int config_setserver_fcgiparams(struct httpd *, struct server *); 826 int config_getserver(struct httpd *, struct imsg *); 827 int config_getserver_tls(struct httpd *, struct imsg *); 828 int config_getserver_fcgiparams(struct httpd *, struct imsg *); 829 int config_setmedia(struct httpd *, struct media_type *); 830 int config_getmedia(struct httpd *, struct imsg *); 831 int config_setauth(struct httpd *, struct auth *); 832 int config_getauth(struct httpd *, struct imsg *); 833 834 /* logger.c */ 835 void logger(struct privsep *, struct privsep_proc *); 836 int logger_open_priv(struct imsg *); 837 838 #endif /* _HTTPD_H */ 839