diff options
Diffstat (limited to 'thirdparty/lws/context.c')
| -rw-r--r-- | thirdparty/lws/context.c | 1628 |
1 files changed, 1628 insertions, 0 deletions
diff --git a/thirdparty/lws/context.c b/thirdparty/lws/context.c new file mode 100644 index 0000000000..9f221f50f1 --- /dev/null +++ b/thirdparty/lws/context.c @@ -0,0 +1,1628 @@ +/* + * libwebsockets - small server side websockets and web server implementation + * + * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation: + * version 2.1 of the License. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include "private-libwebsockets.h" + +#ifndef LWS_BUILD_HASH +#define LWS_BUILD_HASH "unknown-build-hash" +#endif + +static const char *library_version = LWS_LIBRARY_VERSION " " LWS_BUILD_HASH; + +/** + * lws_get_library_version: get version and git hash library built from + * + * returns a const char * to a string like "1.1 178d78c" + * representing the library version followed by the git head hash it + * was built from + */ +LWS_VISIBLE const char * +lws_get_library_version(void) +{ + return library_version; +} + +static const char * const mount_protocols[] = { + "http://", + "https://", + "file://", + "cgi://", + ">http://", + ">https://", + "callback://" +}; + +#if defined(LWS_WITH_HTTP2) +/* + * These are the standardized defaults. + * Override what actually goes in the vhost settings in platform or user code. + * Leave these alone because they are used to determine "what is different + * from the protocol defaults". + */ +const struct http2_settings lws_h2_defaults = { { + 1, + /* H2SET_HEADER_TABLE_SIZE */ 4096, + /* *** This controls how many entries in the dynamic table *** + * Allows the sender to inform the remote endpoint of the maximum + * size of the header compression table used to decode header + * blocks, in octets. The encoder can select any size equal to or + * less than this value by using signaling specific to the header + * compression format inside a header block (see [COMPRESSION]). + * The initial value is 4,096 octets. + */ + /* H2SET_ENABLE_PUSH */ 1, + /* H2SET_MAX_CONCURRENT_STREAMS */ 0x7fffffff, + /* H2SET_INITIAL_WINDOW_SIZE */ 65535, + /* H2SET_MAX_FRAME_SIZE */ 16384, + /* H2SET_MAX_HEADER_LIST_SIZE */ 0x7fffffff, + /*< This advisory setting informs a peer of the maximum size of + * header list that the sender is prepared to accept, in octets. + * The value is based on the uncompressed size of header fields, + * including the length of the name and value in octets plus an + * overhead of 32 octets for each header field. + */ + +}}; + +const struct http2_settings lws_h2_stock_settings = { { + 1, + /* H2SET_HEADER_TABLE_SIZE */ 4096, + /* *** This controls how many entries in the dynamic table *** + * Allows the sender to inform the remote endpoint of the maximum + * size of the header compression table used to decode header + * blocks, in octets. The encoder can select any size equal to or + * less than this value by using signaling specific to the header + * compression format inside a header block (see [COMPRESSION]). + * The initial value is 4,096 octets. + * + * Can't pass h2spec with less than 4096 here... + */ + /* H2SET_ENABLE_PUSH */ 1, + /* H2SET_MAX_CONCURRENT_STREAMS */ 24, + /* H2SET_INITIAL_WINDOW_SIZE */ 65535, + /* H2SET_MAX_FRAME_SIZE */ 16384, + /* H2SET_MAX_HEADER_LIST_SIZE */ 4096, + /*< This advisory setting informs a peer of the maximum size of + * header list that the sender is prepared to accept, in octets. + * The value is based on the uncompressed size of header fields, + * including the length of the name and value in octets plus an + * overhead of 32 octets for each header field. + */ + +}}; +#endif + +LWS_VISIBLE void * +lws_protocol_vh_priv_zalloc(struct lws_vhost *vhost, + const struct lws_protocols *prot, int size) +{ + int n = 0; + + /* allocate the vh priv array only on demand */ + if (!vhost->protocol_vh_privs) { + vhost->protocol_vh_privs = (void **)lws_zalloc( + vhost->count_protocols * sizeof(void *), "protocol_vh_privs"); + if (!vhost->protocol_vh_privs) + return NULL; + } + + while (n < vhost->count_protocols && &vhost->protocols[n] != prot) + n++; + + if (n == vhost->count_protocols) { + n = 0; + while (n < vhost->count_protocols && + strcmp(vhost->protocols[n].name, prot->name)) + n++; + + if (n == vhost->count_protocols) + return NULL; + } + + vhost->protocol_vh_privs[n] = lws_zalloc(size, "vh priv"); + return vhost->protocol_vh_privs[n]; +} + +LWS_VISIBLE void * +lws_protocol_vh_priv_get(struct lws_vhost *vhost, + const struct lws_protocols *prot) +{ + int n = 0; + + if (!vhost || !vhost->protocol_vh_privs) + return NULL; + + while (n < vhost->count_protocols && &vhost->protocols[n] != prot) + n++; + + if (n == vhost->count_protocols) { + n = 0; + while (n < vhost->count_protocols && + strcmp(vhost->protocols[n].name, prot->name)) + n++; + + if (n == vhost->count_protocols) { + lwsl_err("%s: unknown protocol %p\n", __func__, prot); + return NULL; + } + } + + return vhost->protocol_vh_privs[n]; +} + +static const struct lws_protocol_vhost_options * +lws_vhost_protocol_options(struct lws_vhost *vh, const char *name) +{ + const struct lws_protocol_vhost_options *pvo = vh->pvo; + + if (!name) + return NULL; + + while (pvo) { + if (!strcmp(pvo->name, name)) + return pvo; + pvo = pvo->next; + } + + return NULL; +} + +/* + * inform every vhost that hasn't already done it, that + * his protocols are initializing + */ +LWS_VISIBLE int +lws_protocol_init(struct lws_context *context) +{ + struct lws_vhost *vh = context->vhost_list; + const struct lws_protocol_vhost_options *pvo, *pvo1; + struct lws wsi; + int n; + + if (context->doing_protocol_init) + return 0; + + context->doing_protocol_init = 1; + + memset(&wsi, 0, sizeof(wsi)); + wsi.context = context; + + lwsl_info("%s\n", __func__); + + while (vh) { + wsi.vhost = vh; + + /* only do the protocol init once for a given vhost */ + if (vh->created_vhost_protocols) + goto next; + + /* initialize supported protocols on this vhost */ + + for (n = 0; n < vh->count_protocols; n++) { + wsi.protocol = &vh->protocols[n]; + if (!vh->protocols[n].name) + continue; + pvo = lws_vhost_protocol_options(vh, + vh->protocols[n].name); + if (pvo) { + /* + * linked list of options specific to + * vh + protocol + */ + pvo1 = pvo; + pvo = pvo1->options; + + while (pvo) { + lwsl_notice( + " vhost \"%s\", protocol \"%s\", option \"%s\"\n", + vh->name, + vh->protocols[n].name, + pvo->name); + + if (!strcmp(pvo->name, "default")) { + lwsl_notice("Setting default " + "protocol for vh %s to %s\n", + vh->name, + vh->protocols[n].name); + vh->default_protocol_index = n; + } + if (!strcmp(pvo->name, "raw")) { + lwsl_notice("Setting raw " + "protocol for vh %s to %s\n", + vh->name, + vh->protocols[n].name); + vh->raw_protocol_index = n; + } + pvo = pvo->next; + } + + pvo = pvo1->options; + } + + /* + * inform all the protocols that they are doing their + * one-time initialization if they want to. + * + * NOTE the wsi is all zeros except for the context, vh + * + protocol ptrs so lws_get_context(wsi) etc can work + */ + if (vh->protocols[n].callback(&wsi, + LWS_CALLBACK_PROTOCOL_INIT, NULL, + (void *)pvo, 0)) { + lwsl_err("%s: vhost %s failed init\n", __func__, + vh->protocols[n].name); + context->doing_protocol_init = 0; + return 1; + } + } + + vh->created_vhost_protocols = 1; +next: + vh = vh->vhost_next; + } + + context->doing_protocol_init = 0; + + if (!context->protocol_init_done) + lws_finalize_startup(context); + + context->protocol_init_done = 1; + + return 0; +} + +LWS_VISIBLE int +lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason, + void *user, void *in, size_t len) +{ + struct lws_ssl_info *si; +#ifdef LWS_WITH_CGI + struct lws_cgi_args *args; +#endif +#if defined(LWS_WITH_CGI) || defined(LWS_WITH_HTTP_PROXY) + char buf[512]; + int n; +#endif + + switch (reason) { + case LWS_CALLBACK_HTTP: +#ifndef LWS_NO_SERVER + if (lws_return_http_status(wsi, HTTP_STATUS_NOT_FOUND, NULL)) + return -1; + + if (lws_http_transaction_completed(wsi)) +#endif + return -1; + break; +#if !defined(LWS_NO_SERVER) + case LWS_CALLBACK_HTTP_FILE_COMPLETION: + if (lws_http_transaction_completed(wsi)) + return -1; + break; +#endif + + case LWS_CALLBACK_HTTP_WRITEABLE: +#ifdef LWS_WITH_CGI + if (wsi->reason_bf & (LWS_CB_REASON_AUX_BF__CGI_HEADERS | + LWS_CB_REASON_AUX_BF__CGI)) { + n = lws_cgi_write_split_stdout_headers(wsi); + if (n < 0) { + lwsl_debug("LWS_CB_REASON_AUX_BF__CGI forcing close\n"); + return -1; + } + if (!n) + lws_rx_flow_control(wsi->cgi->stdwsi[LWS_STDOUT], 1); + + if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__CGI_HEADERS) + wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__CGI_HEADERS; + else + wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__CGI; + break; + } + + if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__CGI_CHUNK_END) { + if (!wsi->http2_substream) { + memcpy(buf + LWS_PRE, "0\x0d\x0a\x0d\x0a", 5); + lwsl_debug("writing chunk terminator and exiting\n"); + n = lws_write(wsi, (unsigned char *)buf + LWS_PRE, + 5, LWS_WRITE_HTTP); + } else + n = lws_write(wsi, (unsigned char *)buf + LWS_PRE, + 0, LWS_WRITE_HTTP_FINAL); + + /* always close after sending it */ + return -1; + } +#endif +#if defined(LWS_WITH_HTTP_PROXY) + if (wsi->reason_bf & LWS_CB_REASON_AUX_BF__PROXY) { + char *px = buf + LWS_PRE; + int lenx = sizeof(buf) - LWS_PRE; + + /* + * our sink is writeable and our source has something + * to read. So read a lump of source material of + * suitable size to send or what's available, whichever + * is the smaller. + */ + wsi->reason_bf &= ~LWS_CB_REASON_AUX_BF__PROXY; + if (!lws_get_child(wsi)) + break; + if (lws_http_client_read(lws_get_child(wsi), &px, &lenx) < 0) + return -1; + break; + } +#endif + break; + +#if defined(LWS_WITH_HTTP_PROXY) + case LWS_CALLBACK_RECEIVE_CLIENT_HTTP: + assert(lws_get_parent(wsi)); + if (!lws_get_parent(wsi)) + break; + lws_get_parent(wsi)->reason_bf |= LWS_CB_REASON_AUX_BF__PROXY; + lws_callback_on_writable(lws_get_parent(wsi)); + break; + + case LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ: + assert(lws_get_parent(wsi)); + n = lws_write(lws_get_parent(wsi), (unsigned char *)in, + len, LWS_WRITE_HTTP); + if (n < 0) + return -1; + break; + + case LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP: { + unsigned char *p, *end; + char ctype[64], ctlen = 0; + + p = (unsigned char *)buf + LWS_PRE; + end = p + sizeof(buf) - LWS_PRE; + + if (lws_add_http_header_status(lws_get_parent(wsi), + HTTP_STATUS_OK, &p, end)) + return 1; + if (lws_add_http_header_by_token(lws_get_parent(wsi), + WSI_TOKEN_HTTP_SERVER, + (unsigned char *)"libwebsockets", + 13, &p, end)) + return 1; + + ctlen = lws_hdr_copy(wsi, ctype, sizeof(ctype), + WSI_TOKEN_HTTP_CONTENT_TYPE); + if (ctlen > 0) { + if (lws_add_http_header_by_token(lws_get_parent(wsi), + WSI_TOKEN_HTTP_CONTENT_TYPE, + (unsigned char *)ctype, ctlen, &p, end)) + return 1; + } + + if (lws_finalize_http_header(lws_get_parent(wsi), &p, end)) + return 1; + + *p = '\0'; + n = lws_write(lws_get_parent(wsi), + (unsigned char *)buf + LWS_PRE, + p - ((unsigned char *)buf + LWS_PRE), + LWS_WRITE_HTTP_HEADERS); + if (n < 0) + return -1; + + break; } + +#endif + +#ifdef LWS_WITH_CGI + /* CGI IO events (POLLIN/OUT) appear here, our default policy is: + * + * - POST data goes on subprocess stdin + * - subprocess stdout goes on http via writeable callback + * - subprocess stderr goes to the logs + */ + case LWS_CALLBACK_CGI: + args = (struct lws_cgi_args *)in; + switch (args->ch) { /* which of stdin/out/err ? */ + case LWS_STDIN: + /* TBD stdin rx flow control */ + break; + case LWS_STDOUT: + /* quench POLLIN on STDOUT until MASTER got writeable */ + lws_rx_flow_control(args->stdwsi[LWS_STDOUT], 0); + wsi->reason_bf |= LWS_CB_REASON_AUX_BF__CGI; + /* when writing to MASTER would not block */ + lws_callback_on_writable(wsi); + break; + case LWS_STDERR: + n = lws_get_socket_fd(args->stdwsi[LWS_STDERR]); + if (n < 0) + break; + n = read(n, buf, sizeof(buf) - 2); + if (n > 0) { + if (buf[n - 1] != '\n') + buf[n++] = '\n'; + buf[n] = '\0'; + lwsl_notice("CGI-stderr: %s\n", buf); + } + break; + } + break; + + case LWS_CALLBACK_CGI_TERMINATED: + lwsl_debug("LWS_CALLBACK_CGI_TERMINATED: %d %" PRIu64 "\n", + wsi->cgi->explicitly_chunked, + (uint64_t)wsi->cgi->content_length); + if (!wsi->cgi->explicitly_chunked && + !wsi->cgi->content_length) { + /* send terminating chunk */ + lwsl_debug("LWS_CALLBACK_CGI_TERMINATED: ending\n"); + wsi->reason_bf |= LWS_CB_REASON_AUX_BF__CGI_CHUNK_END; + lws_callback_on_writable(wsi); + lws_set_timeout(wsi, PENDING_TIMEOUT_CGI, 3); + break; + } + return -1; + + case LWS_CALLBACK_CGI_STDIN_DATA: /* POST body for stdin */ + args = (struct lws_cgi_args *)in; + args->data[args->len] = '\0'; + n = lws_get_socket_fd(args->stdwsi[LWS_STDIN]); + if (n < 0) + return -1; + n = write(n, args->data, args->len); + if (n < args->len) + lwsl_notice("LWS_CALLBACK_CGI_STDIN_DATA: " + "sent %d only %d went", n, args->len); + return n; +#endif + + case LWS_CALLBACK_SSL_INFO: + si = in; + + (void)si; + lwsl_notice("LWS_CALLBACK_SSL_INFO: where: 0x%x, ret: 0x%x\n", + si->where, si->ret); + break; + + default: + break; + } + + return 0; +} + +/* list of supported protocols and callbacks */ + +static const struct lws_protocols protocols_dummy[] = { + /* first protocol must always be HTTP handler */ + + { + "http-only", /* name */ + lws_callback_http_dummy, /* callback */ + 0, /* per_session_data_size */ + 0, /* max frame size / rx buffer */ + 0, NULL, 0 + }, + /* + * the other protocols are provided by lws plugins + */ + { NULL, NULL, 0, 0, 0, NULL, 0} /* terminator */ +}; + +#ifdef LWS_PLAT_OPTEE +#undef LWS_HAVE_GETENV +#endif + +LWS_VISIBLE struct lws_vhost * +lws_create_vhost(struct lws_context *context, + struct lws_context_creation_info *info) +{ + struct lws_vhost *vh = lws_zalloc(sizeof(*vh), "create vhost"), + **vh1 = &context->vhost_list; + const struct lws_http_mount *mounts; + const struct lws_protocol_vhost_options *pvo; +#ifdef LWS_WITH_PLUGINS + struct lws_plugin *plugin = context->plugin_list; +#endif + struct lws_protocols *lwsp; + int m, f = !info->pvo; +#ifdef LWS_HAVE_GETENV + char *p; +#endif + int n; + + if (!vh) + return NULL; + + if (!info->protocols) + info->protocols = &protocols_dummy[0]; + + vh->context = context; + if (!info->vhost_name) + vh->name = "default"; + else + vh->name = info->vhost_name; + + if (info->options & LWS_SERVER_OPTION_ONLY_RAW) + lwsl_info("%s set to only support RAW\n", vh->name); + +#if defined(LWS_WITH_HTTP2) + vh->set = context->set; + if (info->http2_settings[0]) + for (n = 1; n < LWS_H2_SETTINGS_LEN; n++) + vh->set.s[n] = info->http2_settings[n]; +#endif + + vh->iface = info->iface; +#if !defined(LWS_WITH_ESP8266) && !defined(LWS_WITH_ESP32) && !defined(OPTEE_TA) && !defined(WIN32) + vh->bind_iface = info->bind_iface; +#endif + + for (vh->count_protocols = 0; + info->protocols[vh->count_protocols].callback; + vh->count_protocols++) + ; + + vh->options = info->options; + vh->pvo = info->pvo; + vh->headers = info->headers; + vh->user = info->user; + vh->ssl_info_event_mask = info->ssl_info_event_mask; + if (info->keepalive_timeout) + vh->keepalive_timeout = info->keepalive_timeout; + else + vh->keepalive_timeout = 5; + + if (info->timeout_secs_ah_idle) + vh->timeout_secs_ah_idle = info->timeout_secs_ah_idle; + else + vh->timeout_secs_ah_idle = 10; + + /* + * give the vhost a unified list of protocols including the + * ones that came from plugins + */ + lwsp = lws_zalloc(sizeof(struct lws_protocols) * + (vh->count_protocols + + context->plugin_protocol_count + 1), "vhost-specific plugin table"); + if (!lwsp) { + lwsl_err("OOM\n"); + return NULL; + } + + m = vh->count_protocols; + memcpy(lwsp, info->protocols, sizeof(struct lws_protocols) * m); + + /* for compatibility, all protocols enabled on vhost if only + * the default vhost exists. Otherwise only vhosts who ask + * for a protocol get it enabled. + */ + + if (context->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS) + f = 0; + (void)f; +#ifdef LWS_WITH_PLUGINS + if (plugin) { + + while (plugin) { + for (n = 0; n < plugin->caps.count_protocols; n++) { + /* + * for compatibility's sake, no pvo implies + * allow all protocols + */ + if (f || lws_vhost_protocol_options(vh, + plugin->caps.protocols[n].name)) { + memcpy(&lwsp[m], + &plugin->caps.protocols[n], + sizeof(struct lws_protocols)); + m++; + vh->count_protocols++; + } + } + plugin = plugin->list; + } + } +#endif + + if ( +#ifdef LWS_WITH_PLUGINS + (context->plugin_list) || +#endif + context->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS) + vh->protocols = lwsp; + else { + vh->protocols = info->protocols; + lws_free(lwsp); + } + + vh->same_vh_protocol_list = (struct lws **) + lws_zalloc(sizeof(struct lws *) * vh->count_protocols, "same vh list"); + + vh->mount_list = info->mounts; + +#ifdef LWS_WITH_UNIX_SOCK + if (LWS_UNIX_SOCK_ENABLED(context)) { + lwsl_notice("Creating Vhost '%s' path \"%s\", %d protocols\n", + vh->name, info->iface, vh->count_protocols); + } else +#endif + lwsl_notice("Creating Vhost '%s' port %d, %d protocols, IPv6 %s\n", + vh->name, info->port, vh->count_protocols, + LWS_IPV6_ENABLED(vh) ? "on" : "off"); + + mounts = info->mounts; + while (mounts) { + (void)mount_protocols[0]; + lwsl_notice(" mounting %s%s to %s\n", + mount_protocols[mounts->origin_protocol], + mounts->origin, mounts->mountpoint); + + /* convert interpreter protocol names to pointers */ + pvo = mounts->interpret; + while (pvo) { + for (n = 0; n < vh->count_protocols; n++) + if (!strcmp(pvo->value, vh->protocols[n].name)) { + ((struct lws_protocol_vhost_options *)pvo)->value = + (const char *)(lws_intptr_t)n; + break; + } + if (n == vh->count_protocols) + lwsl_err("ignoring unknown interpret protocol %s\n", + pvo->value); + pvo = pvo->next; + } + + mounts = mounts->mount_next; + } + +#ifndef LWS_NO_EXTENSIONS +#ifdef LWS_WITH_PLUGINS + if (context->plugin_extension_count) { + + m = 0; + while (info->extensions && info->extensions[m].callback) + m++; + + /* + * give the vhost a unified list of extensions including the + * ones that came from plugins + */ + vh->extensions = lws_zalloc(sizeof(struct lws_extension) * + (m + + context->plugin_extension_count + 1), "extensions"); + if (!vh->extensions) + return NULL; + + memcpy((struct lws_extension *)vh->extensions, info->extensions, + sizeof(struct lws_extension) * m); + plugin = context->plugin_list; + while (plugin) { + memcpy((struct lws_extension *)&vh->extensions[m], + plugin->caps.extensions, + sizeof(struct lws_extension) * + plugin->caps.count_extensions); + m += plugin->caps.count_extensions; + plugin = plugin->list; + } + } else +#endif + vh->extensions = info->extensions; +#endif + + vh->listen_port = info->port; +#if !defined(LWS_WITH_ESP8266) + vh->http_proxy_port = 0; + vh->http_proxy_address[0] = '\0'; +#if defined(LWS_WITH_SOCKS5) + vh->socks_proxy_port = 0; + vh->socks_proxy_address[0] = '\0'; +#endif + + /* either use proxy from info, or try get it from env var */ + + /* http proxy */ + if (info->http_proxy_address) { + /* override for backwards compatibility */ + if (info->http_proxy_port) + vh->http_proxy_port = info->http_proxy_port; + lws_set_proxy(vh, info->http_proxy_address); + } else { +#ifdef LWS_HAVE_GETENV + p = getenv("http_proxy"); + if (p) + lws_set_proxy(vh, p); +#endif + } +#if defined(LWS_WITH_SOCKS5) + /* socks proxy */ + if (info->socks_proxy_address) { + /* override for backwards compatibility */ + if (info->socks_proxy_port) + vh->socks_proxy_port = info->socks_proxy_port; + lws_set_socks(vh, info->socks_proxy_address); + } else { +#ifdef LWS_HAVE_GETENV + p = getenv("socks_proxy"); + if (p) + lws_set_socks(vh, p); +#endif + } +#endif +#endif + + vh->ka_time = info->ka_time; + vh->ka_interval = info->ka_interval; + vh->ka_probes = info->ka_probes; + + if (vh->options & LWS_SERVER_OPTION_STS) + lwsl_notice(" STS enabled\n"); + +#ifdef LWS_WITH_ACCESS_LOG + if (info->log_filepath) { + vh->log_fd = open(info->log_filepath, + O_CREAT | O_APPEND | O_RDWR, 0600); + if (vh->log_fd == (int)LWS_INVALID_FILE) { + lwsl_err("unable to open log filepath %s\n", + info->log_filepath); + goto bail; + } +#ifndef WIN32 + if (context->uid != -1) + if (chown(info->log_filepath, context->uid, + context->gid) == -1) + lwsl_err("unable to chown log file %s\n", + info->log_filepath); +#endif + } else + vh->log_fd = (int)LWS_INVALID_FILE; +#endif + if (lws_context_init_server_ssl(info, vh)) + goto bail; + if (lws_context_init_client_ssl(info, vh)) + goto bail; + if (lws_context_init_server(info, vh)) { + lwsl_err("init server failed\n"); + goto bail; + } + + while (1) { + if (!(*vh1)) { + *vh1 = vh; + break; + } + vh1 = &(*vh1)->vhost_next; + }; + /* for the case we are adding a vhost much later, after server init */ + + if (context->protocol_init_done) + lws_protocol_init(context); + + return vh; + +bail: + lws_free(vh); + + return NULL; +} + +LWS_VISIBLE int +lws_init_vhost_client_ssl(const struct lws_context_creation_info *info, + struct lws_vhost *vhost) +{ + struct lws_context_creation_info i; + + memcpy(&i, info, sizeof(i)); + i.port = CONTEXT_PORT_NO_LISTEN; + + return lws_context_init_client_ssl(&i, vhost); +} + +LWS_VISIBLE struct lws_context * +lws_create_context(struct lws_context_creation_info *info) +{ + struct lws_context *context = NULL; + struct lws_plat_file_ops *prev; +#ifndef LWS_NO_DAEMONIZE + int pid_daemon = get_daemonize_pid(); +#endif + int n; +#if defined(__ANDROID__) + struct rlimit rt; +#endif + + lwsl_info("Initial logging level %d\n", log_level); + lwsl_info("Libwebsockets version: %s\n", library_version); +#if defined(GCC_VER) + lwsl_info("Compiled with %s\n", GCC_VER); +#endif +#if LWS_POSIX +#ifdef LWS_WITH_IPV6 + if (!lws_check_opt(info->options, LWS_SERVER_OPTION_DISABLE_IPV6)) + lwsl_info("IPV6 compiled in and enabled\n"); + else + lwsl_info("IPV6 compiled in but disabled\n"); +#else + lwsl_info("IPV6 not compiled in\n"); +#endif +#if !defined(LWS_PLAT_OPTEE) && !defined(LWS_PLAT_ESP32) + lws_feature_status_libev(info); + lws_feature_status_libuv(info); +#endif +#endif + lwsl_info(" LWS_DEF_HEADER_LEN : %u\n", LWS_DEF_HEADER_LEN); + lwsl_info(" LWS_MAX_PROTOCOLS : %u\n", LWS_MAX_PROTOCOLS); + lwsl_info(" LWS_MAX_SMP : %u\n", LWS_MAX_SMP); + lwsl_info(" sizeof (*info) : %ld\n", (long)sizeof(*info)); +#if defined(LWS_WITH_STATS) + lwsl_info(" LWS_WITH_STATS : on\n"); +#endif +#if LWS_POSIX + lwsl_info(" SYSTEM_RANDOM_FILEPATH: '%s'\n", SYSTEM_RANDOM_FILEPATH); +#endif +#if defined(LWS_WITH_HTTP2) + lwsl_info(" HTTP2 support : available\n"); +#else + lwsl_info(" HTTP2 support : not configured"); +#endif + if (lws_plat_context_early_init()) + return NULL; + + context = lws_zalloc(sizeof(struct lws_context), "context"); + if (!context) { + lwsl_err("No memory for websocket context\n"); + return NULL; + } + if (info->pt_serv_buf_size) + context->pt_serv_buf_size = info->pt_serv_buf_size; + else + context->pt_serv_buf_size = 4096; + +#if defined(LWS_WITH_HTTP2) + context->set = lws_h2_stock_settings; +#endif + +#if LWS_MAX_SMP > 1 + pthread_mutex_init(&context->lock, NULL); +#endif + +#if defined(LWS_WITH_ESP32) + context->last_free_heap = esp_get_free_heap_size(); +#endif + + /* default to just the platform fops implementation */ + + context->fops_platform.LWS_FOP_OPEN = _lws_plat_file_open; + context->fops_platform.LWS_FOP_CLOSE = _lws_plat_file_close; + context->fops_platform.LWS_FOP_SEEK_CUR = _lws_plat_file_seek_cur; + context->fops_platform.LWS_FOP_READ = _lws_plat_file_read; + context->fops_platform.LWS_FOP_WRITE = _lws_plat_file_write; + context->fops_platform.fi[0].sig = NULL; + + /* + * arrange a linear linked-list of fops starting from context->fops + * + * platform fops + * [ -> fops_zip (copied into context so .next settable) ] + * [ -> info->fops ] + */ + + context->fops = &context->fops_platform; + prev = (struct lws_plat_file_ops *)context->fops; + +#if defined(LWS_WITH_ZIP_FOPS) + /* make a soft copy so we can set .next */ + context->fops_zip = fops_zip; + prev->next = &context->fops_zip; + prev = (struct lws_plat_file_ops *)prev->next; +#endif + + /* if user provided fops, tack them on the end of the list */ + if (info->fops) + prev->next = info->fops; + + context->reject_service_keywords = info->reject_service_keywords; + if (info->external_baggage_free_on_destroy) + context->external_baggage_free_on_destroy = + info->external_baggage_free_on_destroy; + + context->time_up = time(NULL); + + context->simultaneous_ssl_restriction = info->simultaneous_ssl_restriction; + +#ifndef LWS_NO_DAEMONIZE + if (pid_daemon) { + context->started_with_parent = pid_daemon; + lwsl_info(" Started with daemon pid %d\n", pid_daemon); + } +#endif +#if defined(__ANDROID__) + n = getrlimit ( RLIMIT_NOFILE,&rt); + if (-1 == n) { + lwsl_err("Get RLIMIT_NOFILE failed!\n"); + return NULL; + } + context->max_fds = rt.rlim_cur; +#else + context->max_fds = getdtablesize(); +#endif + + if (info->count_threads) + context->count_threads = info->count_threads; + else + context->count_threads = 1; + + if (context->count_threads > LWS_MAX_SMP) + context->count_threads = LWS_MAX_SMP; + + context->token_limits = info->token_limits; + + context->options = info->options; + + if (info->timeout_secs) + context->timeout_secs = info->timeout_secs; + else + context->timeout_secs = AWAITING_TIMEOUT; + + context->ws_ping_pong_interval = info->ws_ping_pong_interval; + + lwsl_info(" default timeout (secs): %u\n", context->timeout_secs); + + if (info->max_http_header_data) + context->max_http_header_data = info->max_http_header_data; + else + if (info->max_http_header_data2) + context->max_http_header_data = + info->max_http_header_data2; + else + context->max_http_header_data = LWS_DEF_HEADER_LEN; + if (info->max_http_header_pool) + context->max_http_header_pool = info->max_http_header_pool; + else + context->max_http_header_pool = LWS_DEF_HEADER_POOL; + + /* + * Allocate the per-thread storage for scratchpad buffers, + * and header data pool + */ + for (n = 0; n < context->count_threads; n++) { + context->pt[n].serv_buf = lws_malloc(context->pt_serv_buf_size, + "pt_serv_buf"); + if (!context->pt[n].serv_buf) { + lwsl_err("OOM\n"); + return NULL; + } + +#ifdef LWS_WITH_LIBUV + context->pt[n].context = context; +#endif + context->pt[n].tid = n; + context->pt[n].ah_list = NULL; + context->pt[n].ah_pool_length = 0; + + lws_pt_mutex_init(&context->pt[n]); + } + + if (info->fd_limit_per_thread) + context->fd_limit_per_thread = info->fd_limit_per_thread; + else + context->fd_limit_per_thread = context->max_fds / + context->count_threads; + + lwsl_info(" Threads: %d each %d fds\n", context->count_threads, + context->fd_limit_per_thread); + + if (!info->ka_interval && info->ka_time > 0) { + lwsl_err("info->ka_interval can't be 0 if ka_time used\n"); + return NULL; + } + +#ifdef LWS_WITH_LIBEV + /* (Issue #264) In order to *avoid breaking backwards compatibility*, we + * enable libev mediated SIGINT handling with a default handler of + * lws_sigint_cb. The handler can be overridden or disabled + * by invoking lws_sigint_cfg after creating the context, but + * before invoking lws_initloop: + */ + context->use_ev_sigint = 1; + context->lws_ev_sigint_cb = &lws_ev_sigint_cb; +#endif /* LWS_WITH_LIBEV */ +#ifdef LWS_WITH_LIBUV + /* (Issue #264) In order to *avoid breaking backwards compatibility*, we + * enable libev mediated SIGINT handling with a default handler of + * lws_sigint_cb. The handler can be overridden or disabled + * by invoking lws_sigint_cfg after creating the context, but + * before invoking lws_initloop: + */ + context->use_ev_sigint = 1; + context->lws_uv_sigint_cb = &lws_uv_sigint_cb; +#endif +#ifdef LWS_WITH_LIBEVENT + /* (Issue #264) In order to *avoid breaking backwards compatibility*, we + * enable libev mediated SIGINT handling with a default handler of + * lws_sigint_cb. The handler can be overridden or disabled + * by invoking lws_sigint_cfg after creating the context, but + * before invoking lws_initloop: + */ + context->use_ev_sigint = 1; + context->lws_event_sigint_cb = &lws_event_sigint_cb; +#endif /* LWS_WITH_LIBEVENT */ + +#if defined(LWS_WITH_PEER_LIMITS) + /* scale the peer hash table according to the max fds for the process, + * so that the max list depth averages 16. Eg, 1024 fd -> 64, + * 102400 fd -> 6400 + */ + context->pl_hash_elements = + (context->count_threads * context->fd_limit_per_thread) / 16; + context->pl_hash_table = lws_zalloc(sizeof(struct lws_peer *) * + context->pl_hash_elements, "peer limits hash table"); + context->ip_limit_ah = info->ip_limit_ah; + context->ip_limit_wsi = info->ip_limit_wsi; +#endif + + lwsl_info(" mem: context: %5lu bytes (%ld ctx + (%ld thr x %d))\n", + (long)sizeof(struct lws_context) + + (context->count_threads * context->pt_serv_buf_size), + (long)sizeof(struct lws_context), + (long)context->count_threads, + context->pt_serv_buf_size); + + lwsl_info(" mem: http hdr rsvd: %5lu bytes (%u thr x (%u + %lu) x %u))\n", + (long)(context->max_http_header_data + + sizeof(struct allocated_headers)) * + context->max_http_header_pool * context->count_threads, + context->count_threads, + context->max_http_header_data, + (long)sizeof(struct allocated_headers), + context->max_http_header_pool); + n = sizeof(struct lws_pollfd) * context->count_threads * + context->fd_limit_per_thread; + context->pt[0].fds = lws_zalloc(n, "fds table"); + if (context->pt[0].fds == NULL) { + lwsl_err("OOM allocating %d fds\n", context->max_fds); + goto bail; + } + lwsl_info(" mem: pollfd map: %5u\n", n); + + if (info->server_string) { + context->server_string = info->server_string; + context->server_string_len = (short) + strlen(context->server_string); + } + +#if LWS_MAX_SMP > 1 + /* each thread serves his own chunk of fds */ + for (n = 1; n < (int)info->count_threads; n++) + context->pt[n].fds = context->pt[n - 1].fds + + context->fd_limit_per_thread; +#endif + + if (lws_plat_init(context, info)) + goto bail; + +#if defined(LWS_WITH_HTTP2) + /* + * let the user code see what the platform default SETTINGS were, he + * can modify them when he creates the vhosts. + */ + for (n = 1; n < LWS_H2_SETTINGS_LEN; n++) + info->http2_settings[n] = context->set.s[n]; +#endif + + lws_context_init_ssl_library(info); + + context->user_space = info->user; + + /* + * if he's not saying he'll make his own vhosts later then act + * compatibly and make a default vhost using the data in the info + */ + if (!lws_check_opt(info->options, LWS_SERVER_OPTION_EXPLICIT_VHOSTS)) + if (!lws_create_vhost(context, info)) { + lwsl_err("Failed to create default vhost\n"); + return NULL; + } + + lws_context_init_extensions(info, context); + + lwsl_info(" mem: per-conn: %5lu bytes + protocol rx buf\n", + (unsigned long)sizeof(struct lws)); + + strcpy(context->canonical_hostname, "unknown"); + lws_server_get_canonical_hostname(context, info); + + context->uid = info->uid; + context->gid = info->gid; + +#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP) + memcpy(context->caps, info->caps, sizeof(context->caps)); + context->count_caps = info->count_caps; +#endif + + /* + * drop any root privs for this process + * to listen on port < 1023 we would have needed root, but now we are + * listening, we don't want the power for anything else + */ + if (!lws_check_opt(info->options, LWS_SERVER_OPTION_EXPLICIT_VHOSTS)) + lws_plat_drop_app_privileges(info); + + /* + * give all extensions a chance to create any per-context + * allocations they need + */ + if (info->port != CONTEXT_PORT_NO_LISTEN) { + if (lws_ext_cb_all_exts(context, NULL, + LWS_EXT_CB_SERVER_CONTEXT_CONSTRUCT, NULL, 0) < 0) + goto bail; + } else + if (lws_ext_cb_all_exts(context, NULL, + LWS_EXT_CB_CLIENT_CONTEXT_CONSTRUCT, NULL, 0) < 0) + goto bail; + + return context; + +bail: + lws_context_destroy(context); + return NULL; +} + +LWS_VISIBLE LWS_EXTERN void +lws_context_deprecate(struct lws_context *context, lws_reload_func cb) +{ + struct lws_vhost *vh = context->vhost_list, *vh1; + struct lws *wsi; + + /* + * "deprecation" means disable the context from accepting any new + * connections and free up listen sockets to be used by a replacement + * context. + * + * Otherwise the deprecated context remains operational, until its + * number of connected sockets falls to zero, when it is deleted. + */ + + /* for each vhost, close his listen socket */ + + while (vh) { + wsi = vh->lserv_wsi; + if (wsi) { + wsi->socket_is_permanently_unusable = 1; + lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS); + wsi->context->deprecation_pending_listen_close_count++; + /* + * other vhosts can share the listen port, they + * point to the same wsi. So zap those too. + */ + vh1 = context->vhost_list; + while (vh1) { + if (vh1->lserv_wsi == wsi) + vh1->lserv_wsi = NULL; + vh1 = vh1->vhost_next; + } + } + vh = vh->vhost_next; + } + + context->deprecated = 1; + context->deprecation_cb = cb; +} + +LWS_VISIBLE LWS_EXTERN int +lws_context_is_deprecated(struct lws_context *context) +{ + return context->deprecated; +} + +LWS_VISIBLE void +lws_context_destroy2(struct lws_context *context); + + +static void +lws_vhost_destroy1(struct lws_vhost *vh) +{ + const struct lws_protocols *protocol = NULL; + struct lws_context_per_thread *pt; + int n, m = vh->context->count_threads; + struct lws_context *context = vh->context; + struct lws wsi; + + lwsl_info("%s\n", __func__); + + if (vh->being_destroyed) + return; + + vh->being_destroyed = 1; + + /* + * Are there other vhosts that are piggybacking on our listen socket? + * If so we need to hand the listen socket off to one of the others + * so it will remain open. If not, leave it attached to the closing + * vhost and it will get closed. + */ + + if (vh->lserv_wsi) + lws_start_foreach_ll(struct lws_vhost *, v, context->vhost_list) { + if (v != vh && + !v->being_destroyed && + v->listen_port == vh->listen_port && + ((!v->iface && !vh->iface) || + (v->iface && vh->iface && + !strcmp(v->iface, vh->iface)))) { + /* + * this can only be a listen wsi, which is + * restricted... it has no protocol or other + * bindings or states. So we can simply + * swap it to a vhost that has the same + * iface + port, but is not closing. + */ + assert(v->lserv_wsi == NULL); + v->lserv_wsi = vh->lserv_wsi; + vh->lserv_wsi = NULL; + if (v->lserv_wsi) + v->lserv_wsi->vhost = v; + + lwsl_notice("%s: listen skt from %s to %s\n", + __func__, vh->name, v->name); + break; + } + } lws_end_foreach_ll(v, vhost_next); + + /* + * Forcibly close every wsi assoicated with this vhost. That will + * include the listen socket if it is still associated with the closing + * vhost. + */ + + while (m--) { + pt = &context->pt[m]; + + for (n = 0; (unsigned int)n < context->pt[m].fds_count; n++) { + struct lws *wsi = wsi_from_fd(context, pt->fds[n].fd); + if (!wsi) + continue; + if (wsi->vhost != vh) + continue; + + lws_close_free_wsi(wsi, + LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY + /* no protocol close */); + n--; + } + } + + /* + * let the protocols destroy the per-vhost protocol objects + */ + + memset(&wsi, 0, sizeof(wsi)); + wsi.context = vh->context; + wsi.vhost = vh; + protocol = vh->protocols; + if (protocol) { + n = 0; + while (n < vh->count_protocols) { + wsi.protocol = protocol; + protocol->callback(&wsi, LWS_CALLBACK_PROTOCOL_DESTROY, + NULL, NULL, 0); + protocol++; + n++; + } + } + + /* + * remove vhost from context list of vhosts + */ + + lws_start_foreach_llp(struct lws_vhost **, pv, context->vhost_list) { + if (*pv == vh) { + *pv = vh->vhost_next; + break; + } + } lws_end_foreach_llp(pv, vhost_next); + + /* add ourselves to the pending destruction list */ + + vh->vhost_next = vh->context->vhost_pending_destruction_list; + vh->context->vhost_pending_destruction_list = vh; +} + +static void +lws_vhost_destroy2(struct lws_vhost *vh) +{ + const struct lws_protocols *protocol = NULL; + struct lws_context *context = vh->context; + struct lws_deferred_free *df; + int n; + + lwsl_info("%s: %p\n", __func__, vh); + + /* if we are still on deferred free list, remove ourselves */ + + lws_start_foreach_llp(struct lws_deferred_free **, pdf, + context->deferred_free_list) { + if ((*pdf)->payload == vh) { + df = *pdf; + *pdf = df->next; + lws_free(df); + break; + } + } lws_end_foreach_llp(pdf, next); + + /* remove ourselves from the pending destruction list */ + + lws_start_foreach_llp(struct lws_vhost **, pv, + context->vhost_pending_destruction_list) { + if ((*pv) == vh) { + *pv = (*pv)->vhost_next; + break; + } + } lws_end_foreach_llp(pv, vhost_next); + + /* + * Free all the allocations associated with the vhost + */ + + protocol = vh->protocols; + if (protocol) { + n = 0; + while (n < vh->count_protocols) { + if (vh->protocol_vh_privs && + vh->protocol_vh_privs[n]) { + lws_free(vh->protocol_vh_privs[n]); + vh->protocol_vh_privs[n] = NULL; + } + protocol++; + n++; + } + } + if (vh->protocol_vh_privs) + lws_free(vh->protocol_vh_privs); + lws_ssl_SSL_CTX_destroy(vh); + lws_free(vh->same_vh_protocol_list); +#ifdef LWS_WITH_PLUGINS + if (LWS_LIBUV_ENABLED(context)) { + if (context->plugin_list) + lws_free((void *)vh->protocols); + } else +#endif + { + if (context->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS) + lws_free((void *)vh->protocols); + } + +#ifdef LWS_WITH_PLUGINS +#ifndef LWS_NO_EXTENSIONS + if (context->plugin_extension_count) + lws_free((void *)vh->extensions); +#endif +#endif +#ifdef LWS_WITH_ACCESS_LOG + if (vh->log_fd != (int)LWS_INVALID_FILE) + close(vh->log_fd); +#endif + + /* + * although async event callbacks may still come for wsi handles with + * pending close in the case of asycn event library like libuv, + * they do not refer to the vhost. So it's safe to free. + */ + + lwsl_info(" %s: Freeing vhost %p\n", __func__, vh); + + memset(vh, 0, sizeof(*vh)); + lws_free(vh); +} + +int +lws_check_deferred_free(struct lws_context *context, int force) +{ + struct lws_deferred_free *df; + time_t now = lws_now_secs(); + + lws_start_foreach_llp(struct lws_deferred_free **, pdf, + context->deferred_free_list) { + if (now > (*pdf)->deadline || force) { + df = *pdf; + *pdf = df->next; + /* finalize vh destruction */ + lwsl_notice("deferred vh %p destroy\n", df->payload); + lws_vhost_destroy2(df->payload); + lws_free(df); + continue; /* after deletion we already point to next */ + } + } lws_end_foreach_llp(pdf, next); + + return 0; +} + +LWS_VISIBLE void +lws_vhost_destroy(struct lws_vhost *vh) +{ + struct lws_deferred_free *df = lws_malloc(sizeof(*df), "deferred free"); + + if (!df) + return; + + lws_vhost_destroy1(vh); + + /* part 2 is deferred to allow all the handle closes to complete */ + + df->next = vh->context->deferred_free_list; + df->deadline = lws_now_secs() + 5; + df->payload = vh; + vh->context->deferred_free_list = df; +} + +LWS_VISIBLE void +lws_context_destroy(struct lws_context *context) +{ + struct lws_context_per_thread *pt; + struct lws_vhost *vh = NULL; + struct lws wsi; + int n, m; + + if (!context) { + lwsl_notice("%s: ctx %p\n", __func__, context); + return; + } + if (context->being_destroyed1) { + lwsl_notice("%s: ctx %p: already being destroyed\n", + __func__, context); + return; + } + + lwsl_info("%s: ctx %p\n", __func__, context); + + m = context->count_threads; + context->being_destroyed = 1; + context->being_destroyed1 = 1; + + memset(&wsi, 0, sizeof(wsi)); + wsi.context = context; + +#ifdef LWS_LATENCY + if (context->worst_latency_info[0]) + lwsl_notice("Worst latency: %s\n", context->worst_latency_info); +#endif + + while (m--) { + pt = &context->pt[m]; + + for (n = 0; (unsigned int)n < context->pt[m].fds_count; n++) { + struct lws *wsi = wsi_from_fd(context, pt->fds[n].fd); + if (!wsi) + continue; + + lws_close_free_wsi(wsi, + LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY + /* no protocol close */); + n--; + } + lws_pt_mutex_destroy(pt); + } + + /* + * give all extensions a chance to clean up any per-context + * allocations they might have made + */ + + n = lws_ext_cb_all_exts(context, NULL, + LWS_EXT_CB_SERVER_CONTEXT_DESTRUCT, NULL, 0); + + n = lws_ext_cb_all_exts(context, NULL, + LWS_EXT_CB_CLIENT_CONTEXT_DESTRUCT, NULL, 0); + + /* + * inform all the protocols that they are done and will have no more + * callbacks. + * + * We can't free things until after the event loop shuts down. + */ + if (context->protocol_init_done) + vh = context->vhost_list; + while (vh) { + struct lws_vhost *vhn = vh->vhost_next; + lws_vhost_destroy1(vh); + vh = vhn; + } + + for (n = 0; n < context->count_threads; n++) { + pt = &context->pt[n]; + + lws_libev_destroyloop(context, n); + lws_libuv_destroyloop(context, n); + lws_libevent_destroyloop(context, n); + + lws_free_set_NULL(context->pt[n].serv_buf); + + while (pt->ah_list) + _lws_destroy_ah(pt, pt->ah_list); + } + lws_plat_context_early_destroy(context); + + if (context->pt[0].fds) + lws_free_set_NULL(context->pt[0].fds); + + if (!LWS_LIBUV_ENABLED(context)) + lws_context_destroy2(context); +} + +/* + * call the second one after the event loop has been shut down cleanly + */ + +LWS_VISIBLE void +lws_context_destroy2(struct lws_context *context) +{ + struct lws_vhost *vh = NULL, *vh1; +#if defined(LWS_WITH_PEER_LIMITS) + uint32_t n; +#endif + + lwsl_info("%s: ctx %p\n", __func__, context); + + /* + * free all the per-vhost allocations + */ + + vh = context->vhost_list; + while (vh) { + vh1 = vh->vhost_next; + lws_vhost_destroy2(vh); + vh = vh1; + } + + /* remove ourselves from the pending destruction list */ + + while (context->vhost_pending_destruction_list) + /* removes itself from list */ + lws_vhost_destroy2(context->vhost_pending_destruction_list); + + + lws_stats_log_dump(context); + + lws_ssl_context_destroy(context); + lws_plat_context_late_destroy(context); + +#if defined(LWS_WITH_PEER_LIMITS) + for (n = 0; n < context->pl_hash_elements; n++) { + lws_start_foreach_llp(struct lws_peer **, peer, + context->pl_hash_table[n]) { + struct lws_peer *df = *peer; + *peer = df->next; + lws_free(df); + continue; + } lws_end_foreach_llp(peer, next); + } + lws_free(context->pl_hash_table); +#endif + + if (context->external_baggage_free_on_destroy) + free(context->external_baggage_free_on_destroy); + + lws_check_deferred_free(context, 1); + +#if LWS_MAX_SMP > 1 + pthread_mutex_destroy(&context->lock); +#endif + + lws_free(context); +} |