1 /*
2 * libwebsockets - small server side websockets and web server implementation
3 *
4 * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25 #include "private-lib-core.h"
26
27 #ifndef _WIN32
28 /* this is needed for Travis CI */
29 #include <dirent.h>
30 #endif
31
32 #define ESC_INSTALL_DATADIR "_lws_ddir_"
33
34 static const char * const paths_global[] = {
35 "global.uid",
36 "global.gid",
37 "global.username",
38 "global.groupname",
39 "global.count-threads",
40 "global.init-ssl",
41 "global.server-string",
42 "global.plugin-dir",
43 "global.ws-pingpong-secs", /* deprecated */
44 "global.timeout-secs",
45 "global.reject-service-keywords[].*",
46 "global.reject-service-keywords[]",
47 "global.default-alpn",
48 "global.ip-limit-ah",
49 "global.ip-limit-wsi",
50 "global.rlimit-nofile",
51 };
52
53 enum lejp_global_paths {
54 LEJPGP_UID,
55 LEJPGP_GID,
56 LEJPGP_USERNAME,
57 LEJPGP_GROUPNAME,
58 LEJPGP_COUNT_THREADS,
59 LWJPGP_INIT_SSL,
60 LEJPGP_SERVER_STRING,
61 LEJPGP_PLUGIN_DIR,
62 LWJPGP_PINGPONG_SECS,
63 LWJPGP_TIMEOUT_SECS,
64 LWJPGP_REJECT_SERVICE_KEYWORDS_NAME,
65 LWJPGP_REJECT_SERVICE_KEYWORDS,
66 LWJPGP_DEFAULT_ALPN,
67 LWJPGP_IP_LIMIT_AH,
68 LWJPGP_IP_LIMIT_WSI,
69 LWJPGP_FD_LIMIT_PT,
70 };
71
72 static const char * const paths_vhosts[] = {
73 "vhosts[]",
74 "vhosts[].name",
75 "vhosts[].port",
76 "vhosts[].interface",
77 "vhosts[].unix-socket",
78 "vhosts[].unix-socket-perms",
79 "vhosts[].sts",
80 "vhosts[].host-ssl-key",
81 "vhosts[].host-ssl-cert",
82 "vhosts[].host-ssl-ca",
83 "vhosts[].access-log",
84 "vhosts[].mounts[].mountpoint",
85 "vhosts[].mounts[].origin",
86 "vhosts[].mounts[].protocol",
87 "vhosts[].mounts[].default",
88 "vhosts[].mounts[].auth-mask",
89 "vhosts[].mounts[].cgi-timeout",
90 "vhosts[].mounts[].cgi-env[].*",
91 "vhosts[].mounts[].cgi-env[]",
92 "vhosts[].mounts[].cache-max-age",
93 "vhosts[].mounts[].cache-reuse",
94 "vhosts[].mounts[].cache-revalidate",
95 "vhosts[].mounts[].basic-auth",
96 "vhosts[].mounts[].cache-intermediaries",
97 "vhosts[].mounts[].extra-mimetypes.*",
98 "vhosts[].mounts[].extra-mimetypes",
99 "vhosts[].mounts[].interpret.*",
100 "vhosts[].mounts[].interpret",
101 "vhosts[].mounts[]",
102 "vhosts[].ws-protocols[].*.*",
103 "vhosts[].ws-protocols[].*",
104 "vhosts[].ws-protocols[]",
105 "vhosts[].keepalive_timeout",
106 "vhosts[].enable-client-ssl",
107 "vhosts[].ciphers",
108 "vhosts[].ecdh-curve",
109 "vhosts[].noipv6",
110 "vhosts[].ipv6only",
111 "vhosts[].ssl-option-set",
112 "vhosts[].ssl-option-clear",
113 "vhosts[].mounts[].pmo[].*",
114 "vhosts[].mounts[].pmo[]",
115 "vhosts[].headers[].*",
116 "vhosts[].headers[]",
117 "vhosts[].client-ssl-key",
118 "vhosts[].client-ssl-cert",
119 "vhosts[].client-ssl-ca",
120 "vhosts[].client-ssl-ciphers",
121 "vhosts[].onlyraw",
122 "vhosts[].client-cert-required",
123 "vhosts[].ignore-missing-cert",
124 "vhosts[].error-document-404",
125 "vhosts[].alpn",
126 "vhosts[].fo-listen-queue",
127 "vhosts[].ssl-client-option-set",
128 "vhosts[].ssl-client-option-clear",
129 "vhosts[].tls13-ciphers",
130 "vhosts[].client-tls13-ciphers",
131 "vhosts[].strict-host-check",
132
133 "vhosts[].listen-accept-role",
134 "vhosts[].listen-accept-protocol",
135 "vhosts[].apply-listen-accept", /* deprecates "onlyraw" */
136 "vhosts[].fallback-listen-accept",
137 "vhosts[].allow-non-tls",
138 "vhosts[].redirect-http",
139 "vhosts[].allow-http-on-https",
140
141 "vhosts[].disable-no-protocol-ws-upgrades",
142 "vhosts[].h2-half-closed-long-poll",
143 };
144
145 enum lejp_vhost_paths {
146 LEJPVP,
147 LEJPVP_NAME,
148 LEJPVP_PORT,
149 LEJPVP_INTERFACE,
150 LEJPVP_UNIXSKT,
151 LEJPVP_UNIXSKT_PERMS,
152 LEJPVP_STS,
153 LEJPVP_HOST_SSL_KEY,
154 LEJPVP_HOST_SSL_CERT,
155 LEJPVP_HOST_SSL_CA,
156 LEJPVP_ACCESS_LOG,
157 LEJPVP_MOUNTPOINT,
158 LEJPVP_ORIGIN,
159 LEJPVP_MOUNT_PROTOCOL,
160 LEJPVP_DEFAULT,
161 LEJPVP_DEFAULT_AUTH_MASK,
162 LEJPVP_CGI_TIMEOUT,
163 LEJPVP_CGI_ENV,
164 LEJPVP_CGI_ENV_base,
165 LEJPVP_MOUNT_CACHE_MAX_AGE,
166 LEJPVP_MOUNT_CACHE_REUSE,
167 LEJPVP_MOUNT_CACHE_REVALIDATE,
168 LEJPVP_MOUNT_BASIC_AUTH,
169 LEJPVP_MOUNT_CACHE_INTERMEDIARIES,
170 LEJPVP_MOUNT_EXTRA_MIMETYPES,
171 LEJPVP_MOUNT_EXTRA_MIMETYPES_base,
172 LEJPVP_MOUNT_INTERPRET,
173 LEJPVP_MOUNT_INTERPRET_base,
174
175 LEJPVP_MOUNTS,
176
177 LEJPVP_PROTOCOL_NAME_OPT,
178 LEJPVP_PROTOCOL_NAME,
179 LEJPVP_PROTOCOL,
180 LEJPVP_KEEPALIVE_TIMEOUT,
181 LEJPVP_ENABLE_CLIENT_SSL,
182 LEJPVP_CIPHERS,
183 LEJPVP_ECDH_CURVE,
184 LEJPVP_NOIPV6,
185 LEJPVP_IPV6ONLY,
186 LEJPVP_SSL_OPTION_SET,
187 LEJPVP_SSL_OPTION_CLEAR,
188 LEJPVP_PMO,
189 LEJPVP_PM_baseO,
190 LEJPVP_HEADERS_NAME,
191 LEJPVP_HEADERS,
192 LEJPVP_CLIENT_SSL_KEY,
193 LEJPVP_CLIENT_SSL_CERT,
194 LEJPVP_CLIENT_SSL_CA,
195 LEJPVP_CLIENT_CIPHERS,
196 LEJPVP_FLAG_ONLYRAW,
197 LEJPVP_FLAG_CLIENT_CERT_REQUIRED,
198 LEJPVP_IGNORE_MISSING_CERT,
199 LEJPVP_ERROR_DOCUMENT_404,
200 LEJPVP_ALPN,
201 LWJPVP_FO_LISTEN_QUEUE,
202 LEJPVP_SSL_CLIENT_OPTION_SET,
203 LEJPVP_SSL_CLIENT_OPTION_CLEAR,
204 LEJPVP_TLS13_CIPHERS,
205 LEJPVP_CLIENT_TLS13_CIPHERS,
206 LEJPVP_FLAG_STRICT_HOST_CHECK,
207
208 LEJPVP_LISTEN_ACCEPT_ROLE,
209 LEJPVP_LISTEN_ACCEPT_PROTOCOL,
210 LEJPVP_FLAG_APPLY_LISTEN_ACCEPT,
211 LEJPVP_FLAG_FALLBACK_LISTEN_ACCEPT,
212 LEJPVP_FLAG_ALLOW_NON_TLS,
213 LEJPVP_FLAG_REDIRECT_HTTP,
214 LEJPVP_FLAG_ALLOW_HTTP_ON_HTTPS,
215
216 LEJPVP_FLAG_DISABLE_NO_PROTOCOL_WS_UPGRADES,
217 LEJPVP_FLAG_H2_HALF_CLOSED_LONG_POLL,
218 };
219
220 #define MAX_PLUGIN_DIRS 10
221
222 struct jpargs {
223 struct lws_context_creation_info *info;
224 struct lws_context *context;
225 const struct lws_protocols *protocols;
226 const struct lws_protocols **pprotocols;
227 const struct lws_extension *extensions;
228 char *p, *end, valid;
229 struct lws_http_mount *head, *last;
230
231 struct lws_protocol_vhost_options *pvo;
232 struct lws_protocol_vhost_options *pvo_em;
233 struct lws_protocol_vhost_options *pvo_int;
234 struct lws_http_mount m;
235 const char **plugin_dirs;
236 int count_plugin_dirs;
237
238 unsigned int reject_ws_with_no_protocol:1;
239 unsigned int enable_client_ssl:1;
240 unsigned int fresh_mount:1;
241 unsigned int any_vhosts:1;
242 unsigned int chunk:1;
243 };
244
245 static void *
lwsws_align(struct jpargs * a)246 lwsws_align(struct jpargs *a)
247 {
248 if ((lws_intptr_t)(a->p) & 15)
249 a->p += 16 - ((lws_intptr_t)(a->p) & 15);
250
251 a->chunk = 0;
252
253 return a->p;
254 }
255
256 static int
arg_to_bool(const char * s)257 arg_to_bool(const char *s)
258 {
259 static const char * const on[] = { "on", "yes", "true" };
260 int n = atoi(s);
261
262 if (n)
263 return 1;
264
265 for (n = 0; n < (int)LWS_ARRAY_SIZE(on); n++)
266 if (!strcasecmp(s, on[n]))
267 return 1;
268
269 return 0;
270 }
271
272 static void
set_reset_flag(uint64_t * p,const char * state,uint64_t flag)273 set_reset_flag(uint64_t *p, const char *state, uint64_t flag)
274 {
275 if (arg_to_bool(state))
276 *p |= flag;
277 else
278 *p &= ~(flag);
279 }
280
281 static signed char
lejp_globals_cb(struct lejp_ctx * ctx,char reason)282 lejp_globals_cb(struct lejp_ctx *ctx, char reason)
283 {
284 struct jpargs *a = (struct jpargs *)ctx->user;
285 struct lws_protocol_vhost_options *rej;
286 int n;
287
288 /* we only match on the prepared path strings */
289 if (!(reason & LEJP_FLAG_CB_IS_VALUE) || !ctx->path_match)
290 return 0;
291
292 /* this catches, eg, vhosts[].headers[].xxx */
293 if (reason == LEJPCB_VAL_STR_END &&
294 ctx->path_match == LWJPGP_REJECT_SERVICE_KEYWORDS_NAME + 1) {
295 rej = lwsws_align(a);
296 a->p += sizeof(*rej);
297
298 n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
299 rej->next = a->info->reject_service_keywords;
300 a->info->reject_service_keywords = rej;
301 rej->name = a->p;
302 lwsl_notice(" adding rej %s=%s\n", a->p, ctx->buf);
303 a->p += n - 1;
304 *(a->p++) = '\0';
305 rej->value = a->p;
306 rej->options = NULL;
307 goto dostring;
308 }
309
310 switch (ctx->path_match - 1) {
311 case LEJPGP_UID:
312 a->info->uid = (unsigned int)atoi(ctx->buf);
313 return 0;
314 case LEJPGP_GID:
315 a->info->gid = (unsigned int)atoi(ctx->buf);
316 return 0;
317 case LEJPGP_USERNAME:
318 a->info->username = a->p;
319 break;
320 case LEJPGP_GROUPNAME:
321 a->info->groupname = a->p;
322 break;
323 case LEJPGP_COUNT_THREADS:
324 a->info->count_threads = (unsigned int)atoi(ctx->buf);
325 return 0;
326 case LWJPGP_INIT_SSL:
327 if (arg_to_bool(ctx->buf))
328 a->info->options |= LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
329 return 0;
330 case LEJPGP_SERVER_STRING:
331 #if defined(LWS_WITH_SERVER)
332 a->info->server_string = a->p;
333 #endif
334 break;
335 case LEJPGP_PLUGIN_DIR:
336 if (a->count_plugin_dirs == MAX_PLUGIN_DIRS - 1) {
337 lwsl_err("Too many plugin dirs\n");
338 return -1;
339 }
340 a->plugin_dirs[a->count_plugin_dirs++] = a->p;
341 break;
342
343 case LWJPGP_PINGPONG_SECS: /* deprecated */
344 return 0;
345
346 case LWJPGP_TIMEOUT_SECS:
347 a->info->timeout_secs = (unsigned int)atoi(ctx->buf);
348 return 0;
349
350 #if defined(LWS_WITH_TLS)
351 case LWJPGP_DEFAULT_ALPN:
352 a->info->alpn = a->p;
353 break;
354 #endif
355
356 #if defined(LWS_WITH_PEER_LIMITS)
357 case LWJPGP_IP_LIMIT_AH:
358 a->info->ip_limit_ah = (uint16_t)atoi(ctx->buf);
359 return 0;
360
361 case LWJPGP_IP_LIMIT_WSI:
362 a->info->ip_limit_wsi = (uint16_t)atoi(ctx->buf);
363 return 0;
364 #endif
365
366 case LWJPGP_FD_LIMIT_PT:
367 a->info->rlimit_nofile = atoi(ctx->buf);
368 return 0;
369
370 default:
371 return 0;
372 }
373
374 dostring:
375 a->p += lws_snprintf(a->p, lws_ptr_diff_size_t(a->end, a->p), "%s", ctx->buf);
376 *(a->p)++ = '\0';
377
378 return 0;
379 }
380
381 static signed char
lejp_vhosts_cb(struct lejp_ctx * ctx,char reason)382 lejp_vhosts_cb(struct lejp_ctx *ctx, char reason)
383 {
384 struct jpargs *a = (struct jpargs *)ctx->user;
385 struct lws_protocol_vhost_options *pvo, *mp_cgienv, *headers;
386 struct lws_http_mount *m;
387 char *p, *p1;
388 int n;
389
390 #if 0
391 lwsl_notice(" %d: %s (%d)\n", reason, ctx->path, ctx->path_match);
392 for (n = 0; n < ctx->wildcount; n++)
393 lwsl_notice(" %d\n", ctx->wild[n]);
394 #endif
395
396 if (reason == LEJPCB_OBJECT_START && ctx->path_match == LEJPVP + 1) {
397 uint32_t i[4];
398 #if defined(LWS_WITH_SERVER)
399 const char *ss;
400 #endif
401
402 /* set the defaults for this vhost */
403 a->reject_ws_with_no_protocol = 0;
404 a->valid = 1;
405 a->head = NULL;
406 a->last = NULL;
407
408 i[0] = a->info->count_threads;
409 i[1] = a->info->options & (
410 LWS_SERVER_OPTION_SKIP_SERVER_CANONICAL_NAME |
411 LWS_SERVER_OPTION_LIBUV |
412 LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT |
413 LWS_SERVER_OPTION_EXPLICIT_VHOSTS |
414 LWS_SERVER_OPTION_UV_NO_SIGSEGV_SIGFPE_SPIN |
415 LWS_SERVER_OPTION_LIBEVENT |
416 LWS_SERVER_OPTION_LIBEV
417 );
418 #if defined(LWS_WITH_SERVER)
419 ss = a->info->server_string;
420 #endif
421 i[3] = a->info->timeout_secs;
422
423 memset(a->info, 0, sizeof(*a->info));
424
425 a->info->count_threads = i[0];
426 a->info->options = i[1];
427 #if defined(LWS_WITH_SERVER)
428 a->info->server_string = ss;
429 #endif
430 a->info->timeout_secs = i[3];
431
432 a->info->protocols = a->protocols;
433 a->info->pprotocols = a->pprotocols;
434 #if defined(LWS_ROLE_WS)
435 a->info->extensions = a->extensions;
436 #endif
437 #if defined(LWS_WITH_TLS)
438 #if defined(LWS_WITH_CLIENT)
439 a->info->client_ssl_cipher_list = "ECDHE-ECDSA-AES256-GCM-SHA384:"
440 "ECDHE-RSA-AES256-GCM-SHA384:"
441 "DHE-RSA-AES256-GCM-SHA384:"
442 "ECDHE-RSA-AES256-SHA384:"
443 "HIGH:!aNULL:!eNULL:!EXPORT:"
444 "!DES:!MD5:!PSK:!RC4:!HMAC_SHA1:"
445 "!SHA1:!DHE-RSA-AES128-GCM-SHA256:"
446 "!DHE-RSA-AES128-SHA256:"
447 "!AES128-GCM-SHA256:"
448 "!AES128-SHA256:"
449 "!DHE-RSA-AES256-SHA256:"
450 "!AES256-GCM-SHA384:"
451 "!AES256-SHA256";
452 #endif
453 #if defined(LWS_WITH_SERVER)
454 a->info->ssl_cipher_list = "ECDHE-ECDSA-AES256-GCM-SHA384:"
455 "ECDHE-RSA-AES256-GCM-SHA384:"
456 "DHE-RSA-AES256-GCM-SHA384:"
457 "ECDHE-RSA-AES256-SHA384:"
458 "HIGH:!aNULL:!eNULL:!EXPORT:"
459 "!DES:!MD5:!PSK:!RC4:!HMAC_SHA1:"
460 "!SHA1:!DHE-RSA-AES128-GCM-SHA256:"
461 "!DHE-RSA-AES128-SHA256:"
462 "!AES128-GCM-SHA256:"
463 "!AES128-SHA256:"
464 "!DHE-RSA-AES256-SHA256:"
465 "!AES256-GCM-SHA384:"
466 "!AES256-SHA256";
467 #endif
468 #endif
469 a->info->keepalive_timeout = 5;
470 }
471
472 if (reason == LEJPCB_OBJECT_START &&
473 ctx->path_match == LEJPVP_MOUNTS + 1) {
474 a->fresh_mount = 1;
475 memset(&a->m, 0, sizeof(a->m));
476 }
477
478 /* this catches, eg, vhosts[].ws-protocols[].xxx-protocol */
479 if (reason == LEJPCB_OBJECT_START &&
480 ctx->path_match == LEJPVP_PROTOCOL_NAME + 1) {
481 a->pvo = lwsws_align(a);
482 a->p += sizeof(*a->pvo);
483
484 n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
485 /* ie, enable this protocol, no options yet */
486 a->pvo->next = a->info->pvo;
487 a->info->pvo = a->pvo;
488 a->pvo->name = a->p;
489 lwsl_info(" adding protocol %s\n", a->p);
490 a->p += n;
491 a->pvo->value = a->p;
492 a->pvo->options = NULL;
493 goto dostring;
494 }
495
496 /* this catches, eg, vhosts[].headers[].xxx */
497 if ((reason == LEJPCB_VAL_STR_END || reason == LEJPCB_VAL_STR_CHUNK) &&
498 ctx->path_match == LEJPVP_HEADERS_NAME + 1) {
499
500 if (!a->chunk) {
501 headers = lwsws_align(a);
502 a->p += sizeof(*headers);
503
504 n = lejp_get_wildcard(ctx, 0, a->p,
505 lws_ptr_diff(a->end, a->p));
506 /* ie, add this header */
507 headers->next = a->info->headers;
508 a->info->headers = headers;
509 headers->name = a->p;
510
511 lwsl_notice(" adding header %s=%s\n", a->p, ctx->buf);
512 a->p += n - 1;
513 *(a->p++) = ':';
514 if (a->p < a->end)
515 *(a->p++) = '\0';
516 else
517 *(a->p - 1) = '\0';
518 headers->value = a->p;
519 headers->options = NULL;
520 }
521 a->chunk = reason == LEJPCB_VAL_STR_CHUNK;
522 goto dostring;
523 }
524
525 if (reason == LEJPCB_OBJECT_END &&
526 (ctx->path_match == LEJPVP + 1 || !ctx->path[0]) &&
527 a->valid) {
528
529 struct lws_vhost *vhost;
530
531 //lwsl_notice("%s\n", ctx->path);
532 if (!a->info->port &&
533 !(a->info->options & LWS_SERVER_OPTION_UNIX_SOCK)) {
534 lwsl_err("Port required (eg, 443)\n");
535 return 1;
536 }
537 a->valid = 0;
538 a->info->mounts = a->head;
539
540 vhost = lws_create_vhost(a->context, a->info);
541 if (!vhost) {
542 lwsl_err("Failed to create vhost %s\n",
543 a->info->vhost_name);
544 return 1;
545 }
546 a->any_vhosts = 1;
547
548 if (a->reject_ws_with_no_protocol) {
549 a->reject_ws_with_no_protocol = 0;
550
551 vhost->default_protocol_index = 255;
552 }
553
554 #if defined(LWS_WITH_TLS) && defined(LWS_WITH_CLIENT)
555 if (a->enable_client_ssl) {
556 const char *cert_filepath =
557 a->info->client_ssl_cert_filepath;
558 const char *private_key_filepath =
559 a->info->client_ssl_private_key_filepath;
560 const char *ca_filepath =
561 a->info->client_ssl_ca_filepath;
562 const char *cipher_list =
563 a->info->client_ssl_cipher_list;
564
565 memset(a->info, 0, sizeof(*a->info));
566 a->info->client_ssl_cert_filepath = cert_filepath;
567 a->info->client_ssl_private_key_filepath =
568 private_key_filepath;
569 a->info->client_ssl_ca_filepath = ca_filepath;
570 a->info->client_ssl_cipher_list = cipher_list;
571 a->info->options = LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT;
572 lws_init_vhost_client_ssl(a->info, vhost);
573 }
574 #endif
575
576 return 0;
577 }
578
579 if (reason == LEJPCB_OBJECT_END &&
580 ctx->path_match == LEJPVP_MOUNTS + 1) {
581 static const char * const mount_protocols[] = {
582 "http://",
583 "https://",
584 "file://",
585 "cgi://",
586 ">http://",
587 ">https://",
588 "callback://",
589 "gzip://",
590 };
591
592 if (!a->fresh_mount)
593 return 0;
594
595 if (!a->m.mountpoint || !a->m.origin) {
596 lwsl_err("mountpoint and origin required\n");
597 return 1;
598 }
599 lwsl_debug("adding mount %s\n", a->m.mountpoint);
600 m = lwsws_align(a);
601 memcpy(m, &a->m, sizeof(*m));
602 if (a->last)
603 a->last->mount_next = m;
604
605 for (n = 0; n < (int)LWS_ARRAY_SIZE(mount_protocols); n++)
606 if (!strncmp(a->m.origin, mount_protocols[n],
607 strlen(mount_protocols[n]))) {
608 lwsl_info("----%s\n", a->m.origin);
609 m->origin_protocol = (uint8_t)(unsigned int)n;
610 m->origin = a->m.origin +
611 strlen(mount_protocols[n]);
612 break;
613 }
614
615 if (n == (int)LWS_ARRAY_SIZE(mount_protocols)) {
616 lwsl_err("unsupported protocol:// %s\n", a->m.origin);
617 return 1;
618 }
619
620 a->p += sizeof(*m);
621 if (!a->head)
622 a->head = m;
623
624 a->last = m;
625 a->fresh_mount = 0;
626 }
627
628 /* we only match on the prepared path strings */
629 if (!(reason & LEJP_FLAG_CB_IS_VALUE) || !ctx->path_match)
630 return 0;
631
632 switch (ctx->path_match - 1) {
633 case LEJPVP_NAME:
634 a->info->vhost_name = a->p;
635 break;
636 case LEJPVP_PORT:
637 a->info->port = atoi(ctx->buf);
638 return 0;
639 case LEJPVP_INTERFACE:
640 a->info->iface = a->p;
641 break;
642 case LEJPVP_UNIXSKT:
643 if (arg_to_bool(ctx->buf))
644 a->info->options |= (uint64_t)LWS_SERVER_OPTION_UNIX_SOCK;
645 else
646 a->info->options &= (uint64_t)~(LWS_SERVER_OPTION_UNIX_SOCK);
647 return 0;
648 case LEJPVP_UNIXSKT_PERMS:
649 a->info->unix_socket_perms = a->p;
650 break;
651 case LEJPVP_STS:
652 if (arg_to_bool(ctx->buf))
653 a->info->options |= (uint64_t)LWS_SERVER_OPTION_STS;
654 else
655 a->info->options &= (uint64_t)~(LWS_SERVER_OPTION_STS);
656 return 0;
657 #if defined(LWS_WITH_TLS)
658 case LEJPVP_HOST_SSL_KEY:
659 a->info->ssl_private_key_filepath = a->p;
660 break;
661 case LEJPVP_HOST_SSL_CERT:
662 a->info->ssl_cert_filepath = a->p;
663 break;
664 case LEJPVP_HOST_SSL_CA:
665 a->info->ssl_ca_filepath = a->p;
666 break;
667 #endif
668 case LEJPVP_ACCESS_LOG:
669 a->info->log_filepath = a->p;
670 break;
671 case LEJPVP_MOUNTPOINT:
672 a->m.mountpoint = a->p;
673 a->m.mountpoint_len = (unsigned char)strlen(ctx->buf);
674 break;
675 case LEJPVP_ORIGIN:
676 if (!strncmp(ctx->buf, "callback://", 11))
677 a->m.protocol = a->p + 11;
678
679 if (!a->m.origin)
680 a->m.origin = a->p;
681 break;
682 case LEJPVP_DEFAULT:
683 a->m.def = a->p;
684 break;
685 case LEJPVP_DEFAULT_AUTH_MASK:
686 a->m.auth_mask = (unsigned int)atoi(ctx->buf);
687 return 0;
688 case LEJPVP_MOUNT_CACHE_MAX_AGE:
689 a->m.cache_max_age = atoi(ctx->buf);
690 return 0;
691 case LEJPVP_MOUNT_CACHE_REUSE:
692 a->m.cache_reusable = !!arg_to_bool(ctx->buf);
693 return 0;
694 case LEJPVP_MOUNT_CACHE_REVALIDATE:
695 a->m.cache_revalidate = !!arg_to_bool(ctx->buf);
696 return 0;
697 case LEJPVP_MOUNT_CACHE_INTERMEDIARIES:
698 a->m.cache_intermediaries = !!arg_to_bool(ctx->buf);;
699 return 0;
700 case LEJPVP_MOUNT_BASIC_AUTH:
701 #if defined(LWS_WITH_HTTP_BASIC_AUTH)
702 a->m.basic_auth_login_file = a->p;
703 #endif
704 break;
705 case LEJPVP_CGI_TIMEOUT:
706 a->m.cgi_timeout = atoi(ctx->buf);
707 return 0;
708 case LWJPVP_FO_LISTEN_QUEUE:
709 a->info->fo_listen_queue = atoi(ctx->buf);
710 return 0;
711 case LEJPVP_KEEPALIVE_TIMEOUT:
712 a->info->keepalive_timeout = atoi(ctx->buf);
713 return 0;
714 #if defined(LWS_WITH_TLS)
715 #if defined(LWS_WITH_CLIENT)
716 case LEJPVP_CLIENT_CIPHERS:
717 a->info->client_ssl_cipher_list = a->p;
718 break;
719 case LEJPVP_CLIENT_TLS13_CIPHERS:
720 a->info->client_tls_1_3_plus_cipher_list = a->p;
721 break;
722 #endif
723
724 case LEJPVP_CIPHERS:
725 a->info->ssl_cipher_list = a->p;
726 break;
727 case LEJPVP_TLS13_CIPHERS:
728 a->info->tls1_3_plus_cipher_list = a->p;
729 break;
730 case LEJPVP_ECDH_CURVE:
731 a->info->ecdh_curve = a->p;
732 break;
733 #endif
734 case LEJPVP_PMO:
735 case LEJPVP_CGI_ENV:
736 mp_cgienv = lwsws_align(a);
737 a->p += sizeof(*a->m.cgienv);
738
739 mp_cgienv->next = a->m.cgienv;
740 a->m.cgienv = mp_cgienv;
741
742 n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
743 mp_cgienv->name = a->p;
744 a->p += n;
745 mp_cgienv->value = a->p;
746 mp_cgienv->options = NULL;
747 //lwsl_notice(" adding pmo / cgi-env '%s' = '%s'\n",
748 // mp_cgienv->name, mp_cgienv->value);
749 goto dostring;
750
751 case LEJPVP_PROTOCOL_NAME_OPT:
752 /* this catches, eg,
753 * vhosts[].ws-protocols[].xxx-protocol.yyy-option
754 * ie, these are options attached to a protocol with { }
755 */
756 pvo = lwsws_align(a);
757 a->p += sizeof(*a->pvo);
758
759 n = lejp_get_wildcard(ctx, 1, a->p, lws_ptr_diff(a->end, a->p));
760 /* ie, enable this protocol, no options yet */
761 pvo->next = a->pvo->options;
762 a->pvo->options = pvo;
763 pvo->name = a->p;
764 a->p += n;
765 pvo->value = a->p;
766 pvo->options = NULL;
767 break;
768
769 case LEJPVP_MOUNT_EXTRA_MIMETYPES:
770 a->pvo_em = lwsws_align(a);
771 a->p += sizeof(*a->pvo_em);
772
773 n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
774 /* ie, enable this protocol, no options yet */
775 a->pvo_em->next = a->m.extra_mimetypes;
776 a->m.extra_mimetypes = a->pvo_em;
777 a->pvo_em->name = a->p;
778 lwsl_notice(" + extra-mimetypes %s -> %s\n", a->p, ctx->buf);
779 a->p += n;
780 a->pvo_em->value = a->p;
781 a->pvo_em->options = NULL;
782 break;
783
784 case LEJPVP_MOUNT_INTERPRET:
785 a->pvo_int = lwsws_align(a);
786 a->p += sizeof(*a->pvo_int);
787
788 n = lejp_get_wildcard(ctx, 0, a->p, lws_ptr_diff(a->end, a->p));
789 /* ie, enable this protocol, no options yet */
790 a->pvo_int->next = a->m.interpret;
791 a->m.interpret = a->pvo_int;
792 a->pvo_int->name = a->p;
793 lwsl_notice(" adding interpret %s -> %s\n", a->p,
794 ctx->buf);
795 a->p += n;
796 a->pvo_int->value = a->p;
797 a->pvo_int->options = NULL;
798 break;
799
800 case LEJPVP_ENABLE_CLIENT_SSL:
801 a->enable_client_ssl = !!arg_to_bool(ctx->buf);
802 return 0;
803 #if defined(LWS_WITH_TLS) && defined(LWS_WITH_CLIENT)
804 case LEJPVP_CLIENT_SSL_KEY:
805 a->info->client_ssl_private_key_filepath = a->p;
806 break;
807 case LEJPVP_CLIENT_SSL_CERT:
808 a->info->client_ssl_cert_filepath = a->p;
809 break;
810 case LEJPVP_CLIENT_SSL_CA:
811 a->info->client_ssl_ca_filepath = a->p;
812 break;
813 #endif
814
815 case LEJPVP_NOIPV6:
816 set_reset_flag(&a->info->options, ctx->buf,
817 LWS_SERVER_OPTION_DISABLE_IPV6);
818 return 0;
819
820 case LEJPVP_FLAG_ONLYRAW:
821 set_reset_flag(&a->info->options, ctx->buf,
822 LWS_SERVER_OPTION_ADOPT_APPLY_LISTEN_ACCEPT_CONFIG);
823 return 0;
824
825 case LEJPVP_IPV6ONLY:
826 a->info->options |= LWS_SERVER_OPTION_IPV6_V6ONLY_MODIFY;
827 set_reset_flag(&a->info->options, ctx->buf,
828 LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE);
829 return 0;
830
831 case LEJPVP_FLAG_CLIENT_CERT_REQUIRED:
832 if (arg_to_bool(ctx->buf))
833 a->info->options |=
834 LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT;
835 return 0;
836
837 case LEJPVP_IGNORE_MISSING_CERT:
838 set_reset_flag(&a->info->options, ctx->buf,
839 LWS_SERVER_OPTION_IGNORE_MISSING_CERT);
840 return 0;
841
842 case LEJPVP_FLAG_STRICT_HOST_CHECK:
843 set_reset_flag(&a->info->options, ctx->buf,
844 LWS_SERVER_OPTION_VHOST_UPG_STRICT_HOST_CHECK);
845 return 0;
846
847 case LEJPVP_ERROR_DOCUMENT_404:
848 a->info->error_document_404 = a->p;
849 break;
850
851 #if defined(LWS_WITH_TLS)
852 case LEJPVP_SSL_OPTION_SET:
853 a->info->ssl_options_set |= atol(ctx->buf);
854 return 0;
855 case LEJPVP_SSL_OPTION_CLEAR:
856 a->info->ssl_options_clear |= atol(ctx->buf);
857 return 0;
858
859 #if defined(LWS_WITH_CLIENT)
860 case LEJPVP_SSL_CLIENT_OPTION_SET:
861 a->info->ssl_client_options_set |= atol(ctx->buf);
862 return 0;
863 case LEJPVP_SSL_CLIENT_OPTION_CLEAR:
864 a->info->ssl_client_options_clear |= atol(ctx->buf);
865 return 0;
866 #endif
867
868 case LEJPVP_ALPN:
869 a->info->alpn = a->p;
870 break;
871 #endif
872
873 case LEJPVP_LISTEN_ACCEPT_ROLE:
874 a->info->listen_accept_role = a->p;
875 break;
876 case LEJPVP_LISTEN_ACCEPT_PROTOCOL:
877 a->info->listen_accept_protocol = a->p;
878 break;
879
880 case LEJPVP_FLAG_APPLY_LISTEN_ACCEPT:
881 set_reset_flag(&a->info->options, ctx->buf,
882 LWS_SERVER_OPTION_ADOPT_APPLY_LISTEN_ACCEPT_CONFIG);
883 return 0;
884 case LEJPVP_FLAG_FALLBACK_LISTEN_ACCEPT:
885 lwsl_notice("vh %s: LEJPVP_FLAG_FALLBACK_LISTEN_ACCEPT: %s\n",
886 a->info->vhost_name, ctx->buf);
887 set_reset_flag(&a->info->options, ctx->buf,
888 LWS_SERVER_OPTION_FALLBACK_TO_APPLY_LISTEN_ACCEPT_CONFIG);
889 return 0;
890 case LEJPVP_FLAG_ALLOW_NON_TLS:
891 set_reset_flag(&a->info->options, ctx->buf,
892 LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT);
893 return 0;
894 case LEJPVP_FLAG_REDIRECT_HTTP:
895 set_reset_flag(&a->info->options, ctx->buf,
896 LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS);
897 return 0;
898 case LEJPVP_FLAG_ALLOW_HTTP_ON_HTTPS:
899 set_reset_flag(&a->info->options, ctx->buf,
900 LWS_SERVER_OPTION_ALLOW_HTTP_ON_HTTPS_LISTENER);
901 return 0;
902
903 case LEJPVP_FLAG_DISABLE_NO_PROTOCOL_WS_UPGRADES:
904 a->reject_ws_with_no_protocol = 1;
905 return 0;
906
907 case LEJPVP_FLAG_H2_HALF_CLOSED_LONG_POLL:
908 set_reset_flag(&a->info->options, ctx->buf,
909 LWS_SERVER_OPTION_VH_H2_HALF_CLOSED_LONG_POLL);
910 return 0;
911
912 default:
913 return 0;
914 }
915
916 dostring:
917 p = ctx->buf;
918 p[LEJP_STRING_CHUNK] = '\0';
919 p1 = strstr(p, ESC_INSTALL_DATADIR);
920 if (p1) {
921 n = lws_ptr_diff(p1, p);
922 if (n > a->end - a->p)
923 n = lws_ptr_diff(a->end, a->p);
924 lws_strncpy(a->p, p, (unsigned int)n + 1u);
925 a->p += n;
926 a->p += lws_snprintf(a->p, lws_ptr_diff_size_t(a->end, a->p), "%s",
927 LWS_INSTALL_DATADIR);
928 p += n + (int)strlen(ESC_INSTALL_DATADIR);
929 }
930
931 a->p += lws_snprintf(a->p, lws_ptr_diff_size_t(a->end, a->p), "%s", p);
932 if (reason == LEJPCB_VAL_STR_END)
933 *(a->p)++ = '\0';
934
935 return 0;
936 }
937
938 /*
939 * returns 0 = OK, 1 = can't open, 2 = parsing error
940 */
941
942 static int
lwsws_get_config(void * user,const char * f,const char * const * paths,int count_paths,lejp_callback cb)943 lwsws_get_config(void *user, const char *f, const char * const *paths,
944 int count_paths, lejp_callback cb)
945 {
946 unsigned char buf[128];
947 struct lejp_ctx ctx;
948 int n, m = 0, fd;
949
950 memset(&ctx, 0, sizeof(ctx));
951
952 fd = lws_open(f, O_RDONLY);
953 if (fd < 0) {
954 lwsl_err("Cannot open %s\n", f);
955 return 2;
956 }
957 lwsl_info("%s: %s\n", __func__, f);
958 lejp_construct(&ctx, cb, user, paths, (uint8_t)(unsigned int)count_paths);
959
960 do {
961 n = (int)read(fd, buf, sizeof(buf));
962 if (!n)
963 break;
964
965 m = lejp_parse(&ctx, buf, n);
966 } while (m == LEJP_CONTINUE);
967
968 close(fd);
969 n = (int32_t)ctx.line;
970 lejp_destruct(&ctx);
971
972 if (m < 0) {
973 lwsl_err("%s(%u): parsing error %d: %s\n", f, n, m,
974 lejp_error_to_string(m));
975 return 2;
976 }
977
978 return 0;
979 }
980
981 struct lws_dir_args {
982 void *user;
983 const char * const *paths;
984 int count_paths;
985 lejp_callback cb;
986 };
987
988 static int
lwsws_get_config_d_cb(const char * dirpath,void * user,struct lws_dir_entry * lde)989 lwsws_get_config_d_cb(const char *dirpath, void *user,
990 struct lws_dir_entry *lde)
991 {
992 struct lws_dir_args *da = (struct lws_dir_args *)user;
993 char path[256];
994
995 if (lde->type != LDOT_FILE && lde->type != LDOT_UNKNOWN /* ZFS */)
996 return 0;
997
998 lws_snprintf(path, sizeof(path) - 1, "%s/%s", dirpath, lde->name);
999
1000 return lwsws_get_config(da->user, path, da->paths,
1001 da->count_paths, da->cb);
1002 }
1003
1004 int
lwsws_get_config_globals(struct lws_context_creation_info * info,const char * d,char ** cs,int * len)1005 lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
1006 char **cs, int *len)
1007 {
1008 struct lws_dir_args da;
1009 struct jpargs a;
1010 #if defined(LWS_WITH_PLUGINS)
1011 const char * const *old = info->plugin_dirs;
1012 #endif
1013 char dd[128];
1014
1015 memset(&a, 0, sizeof(a));
1016
1017 a.info = info;
1018 a.p = *cs;
1019 a.end = (a.p + *len) - 1;
1020 a.valid = 0;
1021
1022 lwsws_align(&a);
1023 #if defined(LWS_WITH_PLUGINS)
1024 info->plugin_dirs = (void *)a.p;
1025 #endif
1026 a.plugin_dirs = (void *)a.p; /* writeable version */
1027 a.p += MAX_PLUGIN_DIRS * sizeof(void *);
1028
1029 #if defined(LWS_WITH_PLUGINS)
1030 /* copy any default paths */
1031
1032 while (old && *old) {
1033 a.plugin_dirs[a.count_plugin_dirs++] = *old;
1034 old++;
1035 }
1036 #endif
1037
1038 lws_snprintf(dd, sizeof(dd) - 1, "%s/conf", d);
1039 if (lwsws_get_config(&a, dd, paths_global,
1040 LWS_ARRAY_SIZE(paths_global), lejp_globals_cb) > 1)
1041 return 1;
1042 lws_snprintf(dd, sizeof(dd) - 1, "%s/conf.d", d);
1043
1044 da.user = &a;
1045 da.paths = paths_global;
1046 da.count_paths = LWS_ARRAY_SIZE(paths_global),
1047 da.cb = lejp_globals_cb;
1048
1049 if (lws_dir(dd, &da, lwsws_get_config_d_cb) > 1)
1050 return 1;
1051
1052 a.plugin_dirs[a.count_plugin_dirs] = NULL;
1053
1054 *cs = a.p;
1055 *len = lws_ptr_diff(a.end, a.p);
1056
1057 return 0;
1058 }
1059
1060 int
lwsws_get_config_vhosts(struct lws_context * context,struct lws_context_creation_info * info,const char * d,char ** cs,int * len)1061 lwsws_get_config_vhosts(struct lws_context *context,
1062 struct lws_context_creation_info *info, const char *d,
1063 char **cs, int *len)
1064 {
1065 struct lws_dir_args da;
1066 struct jpargs a;
1067 char dd[128];
1068
1069 memset(&a, 0, sizeof(a));
1070
1071 a.info = info;
1072 a.p = *cs;
1073 a.end = a.p + *len;
1074 a.valid = 0;
1075 a.context = context;
1076 a.protocols = info->protocols;
1077 a.pprotocols = info->pprotocols;
1078 #if defined(LWS_ROLE_WS)
1079 a.extensions = info->extensions;
1080 #endif
1081
1082 lws_snprintf(dd, sizeof(dd) - 1, "%s/conf", d);
1083 if (lwsws_get_config(&a, dd, paths_vhosts,
1084 LWS_ARRAY_SIZE(paths_vhosts), lejp_vhosts_cb) > 1)
1085 return 1;
1086 lws_snprintf(dd, sizeof(dd) - 1, "%s/conf.d", d);
1087
1088 da.user = &a;
1089 da.paths = paths_vhosts;
1090 da.count_paths = LWS_ARRAY_SIZE(paths_vhosts),
1091 da.cb = lejp_vhosts_cb;
1092
1093 if (lws_dir(dd, &da, lwsws_get_config_d_cb) > 1)
1094 return 1;
1095
1096 *cs = a.p;
1097 *len = lws_ptr_diff(a.end, a.p);
1098
1099 if (!a.any_vhosts) {
1100 lwsl_err("Need at least one vhost\n");
1101 return 1;
1102 }
1103
1104 // lws_finalize_startup(context);
1105
1106 return 0;
1107 }
1108