* 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;
}
-/**
- * lws_create_context() - Create the websocket handler
- * @info: pointer to struct with parameters
- *
- * This function creates the listening socket (if serving) and takes care
- * of all initialization in one step.
- *
- * After initialization, it returns a struct lws_context * that
- * represents this server. After calling, user code needs to take care
- * of calling lws_service() with the context pointer to get the
- * server's sockets serviced. This must be done in the same process
- * context as the initialization call.
- *
- * The protocol callback functions are called for a handful of events
- * including http requests coming in, websocket connections becoming
- * established, and data arriving; it's also called periodically to allow
- * async transmission.
- *
- * HTTP requests are sent always to the FIRST protocol in @protocol, since
- * at that time websocket protocol has not been negotiated. Other
- * protocols after the first one never see any HTTP callack activity.
- *
- * The server created is a simple http server by default; part of the
- * websocket standard is upgrading this http connection to a websocket one.
- *
- * This allows the same server to provide files like scripts and favicon /
- * images or whatever over http and dynamic data over websockets all in
- * one place; they're all handled in the user callback.
+static const char * const mount_protocols[] = {
+ "http://",
+ "https://",
+ "file://",
+ "cgi://",
+ ">http://",
+ ">https://",
+ "callback://"
+};
+
+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 *));
+ 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);
+ 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->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;
+
+ while (pvo) {
+ // lwsl_notice("%s: '%s' '%s'\n", __func__, pvo->name, name);
+ 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;
+
+ 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(" vh %s prot %s opt %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 and
+ * protocol ptrs so lws_get_context(wsi) etc can work
+ */
+ if (vh->protocols[n].callback(&wsi,
+ LWS_CALLBACK_PROTOCOL_INIT, NULL,
+ (void *)pvo, 0))
+ return 1;
+ }
+
+ vh->created_vhost_protocols = 1;
+next:
+ vh = vh->vhost_next;
+ }
+
+ 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)
+{
+#ifdef LWS_WITH_CGI
+ struct lws_cgi_args *args;
+ char buf[128];
+ 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;
+
+ case LWS_CALLBACK_HTTP_WRITEABLE:
+#ifdef LWS_WITH_CGI
+ if (wsi->reason_bf & 1) {
+ if (lws_cgi_write_split_stdout_headers(wsi) < 0)
+ return -1;
+
+ if (wsi->reason_bf & 8)
+ wsi->reason_bf &= ~8;
+ else
+ wsi->reason_bf &= ~1;
+ break;
+ }
+#endif
+
+ break;
+
+#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:
+ wsi->reason_bf |= 1;
+ /* when writing to MASTER would not block */
+ lws_callback_on_writable(wsi);
+ break;
+ case LWS_STDERR:
+ n = read(lws_get_socket_fd(args->stdwsi[LWS_STDERR]),
+ 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:
+ return -1;
+
+ case LWS_CALLBACK_CGI_STDIN_DATA: /* POST body for stdin */
+ args = (struct lws_cgi_args *)in;
+ args->data[args->len] = '\0';
+ n = write(lws_get_socket_fd(args->stdwsi[LWS_STDIN]),
+ 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
+ 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)),
+ **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;
+
+ 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;
+ if (info->keepalive_timeout)
+ vh->keepalive_timeout = info->keepalive_timeout;
+ else
+ vh->keepalive_timeout = 5;
+
+ /*
+ * 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));
+ 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 (info->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
+ info->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS)
+ vh->protocols = lwsp;
+ else {
+ vh->protocols = info->protocols;
+ free(lwsp);
+ }
+
+ vh->same_vh_protocol_list = (struct lws **)
+ lws_zalloc(sizeof(struct lws *) * vh->count_protocols);
+
+ vh->mount_list = info->mounts;
+
+#ifdef LWS_USE_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) {
+ 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 *)(long)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));
+ 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 wsi;
+ struct lws_plat_file_ops *prev;
#ifndef LWS_NO_DAEMONIZE
int pid_daemon = get_daemonize_pid();
#endif
- char *p;
+ int n, m;
+#if defined(__ANDROID__)
+ struct rlimit rt;
+#endif
lwsl_notice("Initial logging level %d\n", log_level);
-
lwsl_notice("Libwebsockets version: %s\n", library_version);
+#if defined(GCC_VER)
+ lwsl_notice("Compiled with %s\n", GCC_VER);
+#endif
#if LWS_POSIX
#ifdef LWS_USE_IPV6
- if (!(info->options & LWS_SERVER_OPTION_DISABLE_IPV6))
+ if (!lws_check_opt(info->options, LWS_SERVER_OPTION_DISABLE_IPV6))
lwsl_notice("IPV6 compiled in and enabled\n");
else
lwsl_notice("IPV6 compiled in but disabled\n");
#else
lwsl_notice("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(" SPEC_LATEST_SUPPORTED : %u\n", SPEC_LATEST_SUPPORTED);
+ lwsl_info(" sizeof (*info) : %ld\n", (long)sizeof(*info));
+#if defined(LWS_WITH_STATS)
+ lwsl_notice(" LWS_WITH_STATS : on\n");
#endif
- lwsl_info(" LWS_MAX_HEADER_LEN: %u\n", LWS_MAX_HEADER_LEN);
- lwsl_info(" LWS_MAX_PROTOCOLS: %u\n", LWS_MAX_PROTOCOLS);
-
- lwsl_info(" SPEC_LATEST_SUPPORTED: %u\n", SPEC_LATEST_SUPPORTED);
- lwsl_info(" AWAITING_TIMEOUT: %u\n", AWAITING_TIMEOUT);
- lwsl_info(" sizeof (*info): %u\n", sizeof(*info));
#if LWS_POSIX
lwsl_info(" SYSTEM_RANDOM_FILEPATH: '%s'\n", SYSTEM_RANDOM_FILEPATH);
- lwsl_info(" LWS_MAX_ZLIB_CONN_BUFFER: %u\n", LWS_MAX_ZLIB_CONN_BUFFER);
#endif
if (lws_plat_context_early_init())
return NULL;
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;
+
+ /* 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_notice(" Started with daemon pid %d\n", pid_daemon);
}
#endif
- context->lserv_seen = 0;
- context->protocols = info->protocols;
+#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->listen_port = info->port;
- context->http_proxy_port = 0;
- context->http_proxy_address[0] = '\0';
+
context->options = info->options;
- context->iface = info->iface;
- context->ka_time = info->ka_time;
- context->ka_interval = info->ka_interval;
- context->ka_probes = info->ka_probes;
- memset(&wsi, 0, sizeof(wsi));
- wsi.context = context;
+ 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_zalloc(context->pt_serv_buf_size);
+ if (!context->pt[n].serv_buf) {
+ lwsl_err("OOM\n");
+ return NULL;
+ }
+
+#ifdef LWS_USE_LIBUV
+ context->pt[n].context = context;
+#endif
+ context->pt[n].tid = n;
+ context->pt[n].http_header_data = lws_malloc(context->max_http_header_data *
+ context->max_http_header_pool);
+ if (!context->pt[n].http_header_data)
+ goto bail;
+
+ context->pt[n].ah_pool = lws_zalloc(sizeof(struct allocated_headers) *
+ context->max_http_header_pool);
+ for (m = 0; m < context->max_http_header_pool; m++)
+ context->pt[n].ah_pool[m].data =
+ (char *)context->pt[n].http_header_data +
+ (m * context->max_http_header_data);
+ if (!context->pt[n].ah_pool)
+ goto bail;
+
+ 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_notice(" 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");
* before invoking lws_initloop:
*/
context->use_ev_sigint = 1;
- context->lws_ev_sigint_cb = &lws_sigint_cb;
+ context->lws_ev_sigint_cb = &lws_ev_sigint_cb;
#endif /* LWS_USE_LIBEV */
+#ifdef LWS_USE_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_USE_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_USE_LIBEVENT */
- /* to reduce this allocation, */
- context->max_fds = getdtablesize();
- lwsl_notice(" ctx mem: %u bytes\n", sizeof(struct lws_context) +
- ((sizeof(struct lws_pollfd) + sizeof(struct lws *)) *
- context->max_fds));
+ 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);
- context->fds = lws_zalloc(sizeof(struct lws_pollfd) * context->max_fds);
- if (context->fds == NULL) {
+ 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);
+ 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;
- lws_context_init_extensions(info, context);
+ lws_context_init_ssl_library(info);
context->user_space = info->user;
- strcpy(context->canonical_hostname, "unknown");
-
- lws_server_get_canonical_hostname(context, info);
-
- /* either use proxy from info, or try get it from env var */
+ /*
+ * 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;
+ }
- if (info->http_proxy_address) {
- /* override for backwards compatibility */
- if (info->http_proxy_port)
- context->http_proxy_port = info->http_proxy_port;
- lws_set_proxy(context, info->http_proxy_address);
- } else {
-#ifdef LWS_HAVE_GETENV
- p = getenv("http_proxy");
- if (p)
- lws_set_proxy(context, p);
-#endif
- }
+ lws_context_init_extensions(info, context);
- lwsl_notice(" per-conn mem: %u + %u headers + protocol rx buf\n",
- sizeof(struct lws), sizeof(struct allocated_headers));
+ lwsl_notice(" mem: per-conn: %5lu bytes + protocol rx buf\n",
+ (unsigned long)sizeof(struct lws));
- if (lws_context_init_server_ssl(info, context))
- goto bail;
+ strcpy(context->canonical_hostname, "unknown");
+ lws_server_get_canonical_hostname(context, info);
- if (lws_context_init_client_ssl(info, context))
- goto bail;
+ context->uid = info->uid;
+ context->gid = info->gid;
- if (lws_context_init_server(info, context))
- goto bail;
+#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
*/
- lws_plat_drop_app_privileges(info);
-
- /* initialize supported protocols */
-
- for (context->count_protocols = 0;
- info->protocols[context->count_protocols].callback;
- context->count_protocols++)
- /*
- * 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 pointer
- * so lws_get_context(wsi) can work in the callback.
- */
- info->protocols[context->count_protocols].callback(&wsi,
- LWS_CALLBACK_PROTOCOL_INIT, NULL, NULL, 0);
+ 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
*/
if (info->port != CONTEXT_PORT_NO_LISTEN) {
if (lws_ext_cb_all_exts(context, NULL,
- LWS_EXT_CALLBACK_SERVER_CONTEXT_CONSTRUCT, NULL, 0) < 0)
+ LWS_EXT_CB_SERVER_CONTEXT_CONSTRUCT, NULL, 0) < 0)
goto bail;
} else
if (lws_ext_cb_all_exts(context, NULL,
- LWS_EXT_CALLBACK_CLIENT_CONTEXT_CONSTRUCT, NULL, 0) < 0)
+ LWS_EXT_CB_CLIENT_CONTEXT_CONSTRUCT, NULL, 0) < 0)
goto bail;
return context;
return NULL;
}
-/**
- * lws_context_destroy() - Destroy the websocket context
- * @context: Websocket context
- *
- * This function closes any active connections and then frees the
- * context. After calling this, any further use of the context is
- * undefined.
- */
+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);
+
LWS_VISIBLE void
lws_context_destroy(struct lws_context *context)
{
const struct lws_protocols *protocol = NULL;
+ struct lws_context_per_thread *pt;
+ struct lws_vhost *vh = NULL;
struct lws wsi;
- int n;
-
- lwsl_notice("%s\n", __func__);
+ int n, m;
- if (!context)
+ 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_notice("%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;
lwsl_notice("Worst latency: %s\n", context->worst_latency_info);
#endif
- for (n = 0; n < context->fds_count; n++) {
- struct lws *wsi = wsi_from_fd(context, context->fds[n].fd);
- if (!wsi)
- continue;
- lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY
+ 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--;
+ n--;
+ }
+ lws_pt_mutex_destroy(pt);
}
/*
*/
n = lws_ext_cb_all_exts(context, NULL,
- LWS_EXT_CALLBACK_SERVER_CONTEXT_DESTRUCT, NULL, 0);
+ LWS_EXT_CB_SERVER_CONTEXT_DESTRUCT, NULL, 0);
n = lws_ext_cb_all_exts(context, NULL,
- LWS_EXT_CALLBACK_CLIENT_CONTEXT_DESTRUCT, NULL, 0);
+ LWS_EXT_CB_CLIENT_CONTEXT_DESTRUCT, NULL, 0);
/*
* inform all the protocols that they are done and will have no more
- * callbacks
+ * callbacks.
+ *
+ * We can't free things until after the event loop shuts down.
*/
- protocol = context->protocols;
- if (protocol) {
- while (protocol->callback) {
- protocol->callback(&wsi,
- LWS_CALLBACK_PROTOCOL_DESTROY,
- NULL, NULL, 0);
- protocol++;
+ if (context->protocol_init_done)
+ vh = context->vhost_list;
+ while (vh) {
+ 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++;
+ }
}
+
+ vh = vh->vhost_next;
}
-#ifdef LWS_USE_LIBEV
- ev_io_stop(context->io_loop, &context->w_accept.watcher);
- if(context->use_ev_sigint)
- ev_signal_stop(context->io_loop, &context->w_sigint.watcher);
-#endif /* LWS_USE_LIBEV */
+ 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);
+ if (pt->ah_pool)
+ lws_free(pt->ah_pool);
+ if (pt->http_header_data)
+ lws_free(pt->http_header_data);
+ }
lws_plat_context_early_destroy(context);
- lws_ssl_context_destroy(context);
- if (context->fds)
- lws_free(context->fds);
+ 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)
+{
+ const struct lws_protocols *protocol = NULL;
+ struct lws_vhost *vh = NULL, *vh1;
+ int n;
+
+ lwsl_notice("%s: ctx %p\n", __func__, context);
+
+ /*
+ * free all the per-vhost allocations
+ */
+
+ vh = context->vhost_list;
+ while (vh) {
+ protocol = vh->protocols;
+ if (protocol) {
+ n = 0;
+ while (n < vh->count_protocols) {
+ if (vh->protocol_vh_privs &&
+ vh->protocol_vh_privs[n]) {
+ // lwsl_notice(" %s: freeing per-vhost protocol data %p\n", __func__, 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 (context->plugin_list)
+ lws_free((void *)vh->protocols);
+#else
+ if (vh->options & LWS_SERVER_OPTION_EXPLICIT_VHOSTS)
+ lws_free((void *)vh->protocols);
+#endif
+#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
+ vh1 = vh->vhost_next;
+ lws_free(vh);
+ vh = vh1;
+ }
+
+ lws_stats_log_dump(context);
+
+ lws_ssl_context_destroy(context);
lws_plat_context_late_destroy(context);
+ if (context->external_baggage_free_on_destroy)
+ free(context->external_baggage_free_on_destroy);
+
lws_free(context);
}
projects / platform / upstream / libwebsockets.git / blobdiff