コード例 #1
0
ファイル: service.c プロジェクト: 93i/godot
int lws_rxflow_cache(struct lws *wsi, unsigned char *buf, int n, int len)
{
	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
	uint8_t *buffered;
	size_t blen;
	int ret = 0, m;

	/* his RX is flowcontrolled, don't send remaining now */
	blen = lws_buflist_next_segment_len(&wsi->buflist, &buffered);
	if (blen) {
		if (buf >= buffered && buf + len <= buffered + blen) {
			/* rxflow while we were spilling prev rxflow */
			lwsl_info("%s: staying in rxflow buf\n", __func__);

			return 1;
		}
		ret = 1;
	}

	/* a new rxflow, buffer it and warn caller */

	m = lws_buflist_append_segment(&wsi->buflist, buf + n, len - n);

	if (m < 0)
		return -1;
	if (m) {
		lwsl_debug("%s: added %p to rxflow list\n", __func__, wsi);
		lws_dll_lws_add_front(&wsi->dll_buflist, &pt->dll_head_buflist);
	}

	return ret;
}
コード例 #2
0
ファイル: service.c プロジェクト: 93i/godot
int
lws_buflist_aware_consume(struct lws *wsi, struct lws_tokens *ebuf, int used,
			  int buffered)
{
	struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
	int m;

	/* it's in the buflist; we didn't use any */

	if (!used && buffered)
		return 0;

	if (used && buffered) {
		m = lws_buflist_use_segment(&wsi->buflist, used);
		lwsl_info("%s: draining rxflow: used %d, next %d\n",
			    __func__, used, m);
		if (m)
			return 0;

		lwsl_info("%s: removed %p from dll_buflist\n", __func__, wsi);
		lws_dll_lws_remove(&wsi->dll_buflist);

		return 0;
	}

	/* any remainder goes on the buflist */

	if (used != ebuf->len) {
		m = lws_buflist_append_segment(&wsi->buflist,
					       (uint8_t *)ebuf->token + used,
					       ebuf->len - used);
		if (m < 0)
			return 1; /* OOM */
		if (m) {
			lwsl_debug("%s: added %p to rxflow list\n", __func__, wsi);
			lws_dll_lws_add_front(&wsi->dll_buflist, &pt->dll_head_buflist);
		}
	}

	return 0;
}
コード例 #3
0
ファイル: service.c プロジェクト: 93i/godot
/*
 * POLLIN said there is something... we must read it, and either use it; or
 * if other material already in the buflist append it and return the buflist
 * head material.
 */
int
lws_buflist_aware_read(struct lws_context_per_thread *pt, struct lws *wsi,
		       struct lws_tokens *ebuf)
{
	int n, prior = (int)lws_buflist_next_segment_len(&wsi->buflist, NULL);

	ebuf->token = (char *)pt->serv_buf;
	ebuf->len = lws_ssl_capable_read(wsi, pt->serv_buf,
					 wsi->context->pt_serv_buf_size);

	if (ebuf->len == LWS_SSL_CAPABLE_MORE_SERVICE && prior)
		goto get_from_buflist;

	if (ebuf->len <= 0)
		return 0;

	/* nothing in buflist already?  Then just use what we read */

	if (!prior)
		return 0;

	/* stash what we read */

	n = lws_buflist_append_segment(&wsi->buflist, (uint8_t *)ebuf->token,
				       ebuf->len);
	if (n < 0)
		return -1;
	if (n) {
		lwsl_debug("%s: added %p to rxflow list\n", __func__, wsi);
		lws_dll_lws_add_front(&wsi->dll_buflist, &pt->dll_head_buflist);
	}

	/* get the first buflist guy in line */

get_from_buflist:

	ebuf->len = (int)lws_buflist_next_segment_len(&wsi->buflist,
						      (uint8_t **)&ebuf->token);

	return 1; /* came from buflist */
}
コード例 #4
0
struct lws *
lws_client_connect_2(struct lws *wsi)
{
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
	struct lws_context *context = wsi->context;
	struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
	const char *adsin;
	struct lws *wsi_piggyback = NULL;
	struct lws_pollfd pfd;
	ssize_t plen = 0;
#endif
	struct addrinfo *result;
#if defined(LWS_WITH_UNIX_SOCK)
	struct sockaddr_un sau;
	char unix_skt = 0;
#endif
	const char *ads;
	sockaddr46 sa46;
	const struct sockaddr *psa;
	int n, port;
	const char *cce = "", *iface;
	const char *meth = NULL;
#ifdef LWS_WITH_IPV6
	char ipv6only = lws_check_opt(wsi->vhost->options,
			LWS_SERVER_OPTION_IPV6_V6ONLY_MODIFY |
			LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE);

#if defined(__ANDROID__)
	ipv6only = 0;
#endif
#endif

	lwsl_client("%s: %p\n", __func__, wsi);

#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
	if (!wsi->http.ah) {
		cce = "ah was NULL at cc2";
		lwsl_err("%s\n", cce);
		goto oom4;
	}

	/* we can only piggyback GET or POST */

	meth = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_METHOD);
	if (meth && strcmp(meth, "GET") && strcmp(meth, "POST"))
		goto create_new_conn;

	/* we only pipeline connections that said it was okay */

	if (!wsi->client_pipeline)
		goto create_new_conn;

	/*
	 * let's take a look first and see if there are any already-active
	 * client connections we can piggy-back on.
	 */

	adsin = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS);

	lws_vhost_lock(wsi->vhost); /* ----------------------------------- { */

	lws_start_foreach_dll_safe(struct lws_dll_lws *, d, d1,
				   wsi->vhost->dll_active_client_conns.next) {
		struct lws *w = lws_container_of(d, struct lws,
						 dll_active_client_conns);

		lwsl_debug("%s: check %s %s %d %d\n", __func__, adsin,
			   w->client_hostname_copy, wsi->c_port, w->c_port);

		if (w != wsi && w->client_hostname_copy &&
		    !strcmp(adsin, w->client_hostname_copy) &&
#if defined(LWS_WITH_TLS)
		    (wsi->tls.use_ssl & LCCSCF_USE_SSL) ==
		     (w->tls.use_ssl & LCCSCF_USE_SSL) &&
#endif
		    wsi->c_port == w->c_port) {

			/* someone else is already connected to the right guy */

			/* do we know for a fact pipelining won't fly? */
			if (w->keepalive_rejected) {
				lwsl_info("defeating pipelining due to no "
					    "keepalive on server\n");
				lws_vhost_unlock(wsi->vhost); /* } ---------- */
				goto create_new_conn;
			}
#if defined (LWS_WITH_HTTP2)
			/*
			 * h2: in usable state already: just use it without
			 *     going through the queue
			 */
			if (w->client_h2_alpn &&
			    (lwsi_state(w) == LRS_H2_WAITING_TO_SEND_HEADERS ||
			     lwsi_state(w) == LRS_ESTABLISHED)) {

				lwsl_info("%s: just join h2 directly\n",
						__func__);

				wsi->client_h2_alpn = 1;
				lws_wsi_h2_adopt(w, wsi);
				lws_vhost_unlock(wsi->vhost); /* } ---------- */

				return wsi;
			}
#endif

			lwsl_info("applying %p to txn queue on %p (wsistate 0x%x)\n",
				wsi, w, w->wsistate);
			/*
			 * ...let's add ourselves to his transaction queue...
			 * we are adding ourselves at the HEAD
			 */
			lws_dll_lws_add_front(&wsi->dll_client_transaction_queue,
				&w->dll_client_transaction_queue_head);

			/*
			 * h1: pipeline our headers out on him,
			 * and wait for our turn at client transaction_complete
			 * to take over parsing the rx.
			 */

			wsi_piggyback = w;

			lws_vhost_unlock(wsi->vhost); /* } ---------- */
			goto send_hs;
		}

	} lws_end_foreach_dll_safe(d, d1);

	lws_vhost_unlock(wsi->vhost); /* } ---------------------------------- */

create_new_conn:
#endif

	/*
	 * clients who will create their own fresh connection keep a copy of
	 * the hostname they originally connected to, in case other connections
	 * want to use it too
	 */

	if (!wsi->client_hostname_copy)
		wsi->client_hostname_copy =
			lws_strdup(lws_hdr_simple_ptr(wsi,
					_WSI_TOKEN_CLIENT_PEER_ADDRESS));

	/*
	 * If we made our own connection, and we're doing a method that can take
	 * a pipeline, we are an "active client connection".
	 *
	 * Add ourselves to the vhost list of those so that others can
	 * piggyback on our transaction queue
	 */

	if (meth && (!strcmp(meth, "GET") || !strcmp(meth, "POST")) &&
	    lws_dll_is_null(&wsi->dll_client_transaction_queue) &&
	    lws_dll_is_null(&wsi->dll_active_client_conns)) {
		lws_vhost_lock(wsi->vhost);
		/* caution... we will have to unpick this on oom4 path */
		lws_dll_lws_add_front(&wsi->dll_active_client_conns,
				      &wsi->vhost->dll_active_client_conns);
		lws_vhost_unlock(wsi->vhost);
	}

	/*
	 * unix socket destination?
	 */

	ads = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS);
#if defined(LWS_WITH_UNIX_SOCK)
	if (*ads == '+') {
		ads++;
		memset(&sau, 0, sizeof(sau));
		sau.sun_family = AF_UNIX;
		strncpy(sau.sun_path, ads, sizeof(sau.sun_path));
		sau.sun_path[sizeof(sau.sun_path) - 1] = '\0';

		lwsl_info("%s: Unix skt: %s\n", __func__, ads);

		if (sau.sun_path[0] == '@')
			sau.sun_path[0] = '\0';

		unix_skt = 1;
		goto ads_known;
	}
#endif

	/*
	 * start off allowing ipv6 on connection if vhost allows it
	 */
	wsi->ipv6 = LWS_IPV6_ENABLED(wsi->vhost);

#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)

	/* Decide what it is we need to connect to:
	 *
	 * Priority 1: connect to http proxy */

	if (wsi->vhost->http.http_proxy_port) {
		plen = sprintf((char *)pt->serv_buf,
			"CONNECT %s:%u HTTP/1.0\x0d\x0a"
			"User-agent: libwebsockets\x0d\x0a",
			lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS),
			wsi->c_port);

		if (wsi->vhost->proxy_basic_auth_token[0])
			plen += sprintf((char *)pt->serv_buf + plen,
					"Proxy-authorization: basic %s\x0d\x0a",
					wsi->vhost->proxy_basic_auth_token);

		plen += sprintf((char *)pt->serv_buf + plen, "\x0d\x0a");
		ads = wsi->vhost->http.http_proxy_address;
		port = wsi->vhost->http.http_proxy_port;
#else
		if (0) {
#endif

#if defined(LWS_WITH_SOCKS5)

	/* Priority 2: Connect to SOCK5 Proxy */

	} else if (wsi->vhost->socks_proxy_port) {
		socks_generate_msg(wsi, SOCKS_MSG_GREETING, &plen);
		lwsl_client("Sending SOCKS Greeting\n");
		ads = wsi->vhost->socks_proxy_address;
		port = wsi->vhost->socks_proxy_port;
#endif
	} else {

		/* Priority 3: Connect directly */

		ads = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS);
		port = wsi->c_port;
	}

	/*
	 * prepare the actual connection
	 * to whatever we decided to connect to
	 */

       lwsl_info("%s: %p: address %s\n", __func__, wsi, ads);

       n = lws_getaddrinfo46(wsi, ads, &result);

#ifdef LWS_WITH_IPV6
	if (wsi->ipv6) {
		struct sockaddr_in6 *sa6;

		if (n || !result) {
			/* lws_getaddrinfo46 failed, there is no usable result */
			lwsl_notice("%s: lws_getaddrinfo46 failed %d\n",
					__func__, n);
			cce = "ipv6 lws_getaddrinfo46 failed";
			goto oom4;
		}

		sa6 = ((struct sockaddr_in6 *)result->ai_addr);

		memset(&sa46, 0, sizeof(sa46));

		sa46.sa6.sin6_family = AF_INET6;
		switch (result->ai_family) {
		case AF_INET:
			if (ipv6only)
				break;
			/* map IPv4 to IPv6 */
			bzero((char *)&sa46.sa6.sin6_addr,
						sizeof(sa46.sa6.sin6_addr));
			sa46.sa6.sin6_addr.s6_addr[10] = 0xff;
			sa46.sa6.sin6_addr.s6_addr[11] = 0xff;
			memcpy(&sa46.sa6.sin6_addr.s6_addr[12],
				&((struct sockaddr_in *)result->ai_addr)->sin_addr,
							sizeof(struct in_addr));
			lwsl_notice("uplevelling AF_INET to AF_INET6\n");
			break;

		case AF_INET6:
			memcpy(&sa46.sa6.sin6_addr, &sa6->sin6_addr,
						sizeof(struct in6_addr));
			sa46.sa6.sin6_scope_id = sa6->sin6_scope_id;
			sa46.sa6.sin6_flowinfo = sa6->sin6_flowinfo;
			break;
		default:
			lwsl_err("Unknown address family\n");
			freeaddrinfo(result);
			cce = "unknown address family";
			goto oom4;
		}
	} else
#endif /* use ipv6 */

	/* use ipv4 */
	{
		void *p = NULL;

		if (!n) {
			struct addrinfo *res = result;

			/* pick the first AF_INET (IPv4) result */

			while (!p && res) {
				switch (res->ai_family) {
				case AF_INET:
					p = &((struct sockaddr_in *)res->ai_addr)->sin_addr;
					break;
				}

				res = res->ai_next;
			}
#if defined(LWS_FALLBACK_GETHOSTBYNAME)
		} else if (n == EAI_SYSTEM) {
			struct hostent *host;

			lwsl_info("getaddrinfo (ipv4) failed, trying gethostbyname\n");
			host = gethostbyname(ads);
			if (host) {
				p = host->h_addr;
			} else {
				lwsl_err("gethostbyname failed\n");
				cce = "gethostbyname (ipv4) failed";
				goto oom4;
			}
#endif
		} else {
			lwsl_err("getaddrinfo failed: %d\n", n);
			cce = "getaddrinfo failed";
			goto oom4;
		}

		if (!p) {
			if (result)
				freeaddrinfo(result);
			lwsl_err("Couldn't identify address\n");
			cce = "unable to lookup address";
			goto oom4;
		}

		sa46.sa4.sin_family = AF_INET;
		sa46.sa4.sin_addr = *((struct in_addr *)p);
		bzero(&sa46.sa4.sin_zero, 8);
	}

	if (result)
		freeaddrinfo(result);

#if defined(LWS_WITH_UNIX_SOCK)
ads_known:
#endif

	/* now we decided on ipv4 or ipv6, set the port */

	if (!lws_socket_is_valid(wsi->desc.sockfd)) {

		if (wsi->context->event_loop_ops->check_client_connect_ok &&
		    wsi->context->event_loop_ops->check_client_connect_ok(wsi)) {
			cce = "waiting for event loop watcher to close";
			goto oom4;
		}

#if defined(LWS_WITH_UNIX_SOCK)
		if (unix_skt) {
			wsi->unix_skt = 1;
			wsi->desc.sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
		} else
#endif
		{

#ifdef LWS_WITH_IPV6
		if (wsi->ipv6)
			wsi->desc.sockfd = socket(AF_INET6, SOCK_STREAM, 0);
		else
#endif
			wsi->desc.sockfd = socket(AF_INET, SOCK_STREAM, 0);
		}

		if (!lws_socket_is_valid(wsi->desc.sockfd)) {
			lwsl_warn("Unable to open socket\n");
			cce = "unable to open socket";
			goto oom4;
		}

		if (lws_plat_set_socket_options(wsi->vhost, wsi->desc.sockfd,
#if defined(LWS_WITH_UNIX_SOCK)
						unix_skt)) {
#else
						0)) {
#endif
			lwsl_err("Failed to set wsi socket options\n");
			compatible_close(wsi->desc.sockfd);
			cce = "set socket opts failed";
			goto oom4;
		}

		lwsi_set_state(wsi, LRS_WAITING_CONNECT);

		if (wsi->context->event_loop_ops->accept)
			if (wsi->context->event_loop_ops->accept(wsi)) {
				compatible_close(wsi->desc.sockfd);
				cce = "event loop accept failed";
				goto oom4;
			}

		if (__insert_wsi_socket_into_fds(wsi->context, wsi)) {
			compatible_close(wsi->desc.sockfd);
			cce = "insert wsi failed";
			goto oom4;
		}

		lws_change_pollfd(wsi, 0, LWS_POLLIN);

		/*
		 * past here, we can't simply free the structs as error
		 * handling as oom4 does.  We have to run the whole close flow.
		 */

		if (!wsi->protocol)
			wsi->protocol = &wsi->vhost->protocols[0];

		wsi->protocol->callback(wsi, LWS_CALLBACK_WSI_CREATE,
					wsi->user_space, NULL, 0);

		lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_CONNECT_RESPONSE,
				AWAITING_TIMEOUT);

		iface = lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_IFACE);

		if (iface) {
			n = lws_socket_bind(wsi->vhost, wsi->desc.sockfd, 0, iface);
			if (n < 0) {
				cce = "unable to bind socket";
				goto failed;
			}
		}
	}

#if defined(LWS_WITH_UNIX_SOCK)
	if (unix_skt) {
		psa = (const struct sockaddr *)&sau;
		n = sizeof(sau);
	} else
#endif

	{
#ifdef LWS_WITH_IPV6
		if (wsi->ipv6) {
			sa46.sa6.sin6_port = htons(port);
			n = sizeof(struct sockaddr_in6);
			psa = (const struct sockaddr *)&sa46;
		} else
#endif
		{
			sa46.sa4.sin_port = htons(port);
			n = sizeof(struct sockaddr);
			psa = (const struct sockaddr *)&sa46;
		}
	}

	if (connect(wsi->desc.sockfd, (const struct sockaddr *)psa, n) == -1 ||
	    LWS_ERRNO == LWS_EISCONN) {
		if (LWS_ERRNO == LWS_EALREADY ||
		    LWS_ERRNO == LWS_EINPROGRESS ||
		    LWS_ERRNO == LWS_EWOULDBLOCK
#ifdef _WIN32
			|| LWS_ERRNO == WSAEINVAL
#endif
		) {
			lwsl_client("nonblocking connect retry (errno = %d)\n",
				    LWS_ERRNO);

			if (lws_plat_check_connection_error(wsi)) {
				cce = "socket connect failed";
				goto failed;
			}

			/*
			 * must do specifically a POLLOUT poll to hear
			 * about the connect completion
			 */
			if (lws_change_pollfd(wsi, 0, LWS_POLLOUT)) {
				cce = "POLLOUT set failed";
				goto failed;
			}

			return wsi;
		}

		if (LWS_ERRNO != LWS_EISCONN) {
			lwsl_notice("Connect failed errno=%d\n", LWS_ERRNO);
			cce = "connect failed";
			goto failed;
		}
	}

	lwsl_client("connected\n");

#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
	/* we are connected to server, or proxy */

	/* http proxy */
	if (wsi->vhost->http.http_proxy_port) {

		/*
		 * OK from now on we talk via the proxy, so connect to that
		 *
		 * (will overwrite existing pointer,
		 * leaving old string/frag there but unreferenced)
		 */
		if (lws_hdr_simple_create(wsi, _WSI_TOKEN_CLIENT_PEER_ADDRESS,
					  wsi->vhost->http.http_proxy_address))
			goto failed;
		wsi->c_port = wsi->vhost->http.http_proxy_port;

		n = send(wsi->desc.sockfd, (char *)pt->serv_buf, (int)plen,
			 MSG_NOSIGNAL);
		if (n < 0) {
			lwsl_debug("ERROR writing to proxy socket\n");
			cce = "proxy write failed";
			goto failed;
		}

		lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE,
				AWAITING_TIMEOUT);

		lwsi_set_state(wsi, LRS_WAITING_PROXY_REPLY);

		return wsi;
	}
#endif
#if defined(LWS_WITH_SOCKS5)
	/* socks proxy */
	else if (wsi->vhost->socks_proxy_port) {
		n = send(wsi->desc.sockfd, (char *)pt->serv_buf, plen,
			 MSG_NOSIGNAL);
		if (n < 0) {
			lwsl_debug("ERROR writing socks greeting\n");
			cce = "socks write failed";
			goto failed;
		}

		lws_set_timeout(wsi, PENDING_TIMEOUT_AWAITING_SOCKS_GREETING_REPLY,
				AWAITING_TIMEOUT);

		lwsi_set_state(wsi, LRS_WAITING_SOCKS_GREETING_REPLY);

		return wsi;
	}
#endif
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
send_hs:

	if (wsi_piggyback &&
	    !lws_dll_is_null(&wsi->dll_client_transaction_queue)) {
		/*
		 * We are pipelining on an already-established connection...
		 * we can skip tls establishment.
		 */

		lwsi_set_state(wsi, LRS_H1C_ISSUE_HANDSHAKE2);

		/*
		 * we can't send our headers directly, because they have to
		 * be sent when the parent is writeable.  The parent will check
		 * for anybody on his client transaction queue that is in
		 * LRS_H1C_ISSUE_HANDSHAKE2, and let them write.
		 *
		 * If we are trying to do this too early, before the master
		 * connection has written his own headers, then it will just
		 * wait in the queue until it's possible to send them.
		 */
		lws_callback_on_writable(wsi_piggyback);
		lwsl_info("%s: wsi %p: waiting to send headers (parent state %x)\n",
			    __func__, wsi, lwsi_state(wsi_piggyback));
	} else {
		lwsl_info("%s: wsi %p: client creating own connection\n",
			    __func__, wsi);

		/* we are making our own connection */
		lwsi_set_state(wsi, LRS_H1C_ISSUE_HANDSHAKE);

		/*
		 * provoke service to issue the handshake directly.
		 *
		 * we need to do it this way because in the proxy case, this is
		 * the next state and executed only if and when we get a good
		 * proxy response inside the state machine... but notice in
		 * SSL case this may not have sent anything yet with 0 return,
		 * and won't until many retries from main loop.  To stop that
		 * becoming endless, cover with a timeout.
		 */

		lws_set_timeout(wsi, PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE,
				AWAITING_TIMEOUT);

		pfd.fd = wsi->desc.sockfd;
		pfd.events = LWS_POLLIN;
		pfd.revents = LWS_POLLIN;

		n = lws_service_fd(context, &pfd);
		if (n < 0) {
			cce = "first service failed";
			goto failed;
		}
		if (n) /* returns 1 on failure after closing wsi */
			return NULL;
	}
#endif
	return wsi;

oom4:
	if (lwsi_role_client(wsi) /* && lwsi_state_est(wsi) */) {
		wsi->protocol->callback(wsi,
			LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
			wsi->user_space, (void *)cce, strlen(cce));
		wsi->already_did_cce = 1;
	}
	/* take care that we might be inserted in fds already */
	if (wsi->position_in_fds_table != LWS_NO_FDS_POS)
		goto failed1;

	/*
	 * We can't be an active client connection any more, if we thought
	 * that was what we were going to be doing.  It should be if we are
	 * failing by oom4 path, we are still called by
	 * lws_client_connect_via_info() and will be returning NULL to that,
	 * so nobody else should have had a chance to queue on us.
	 */
	{
		struct lws_vhost *vhost = wsi->vhost;

		lws_vhost_lock(vhost);
		__lws_free_wsi(wsi);
		lws_vhost_unlock(vhost);
	}

	return NULL;

failed:
	wsi->protocol->callback(wsi,
		LWS_CALLBACK_CLIENT_CONNECTION_ERROR,
		wsi->user_space, (void *)cce, strlen(cce));
	wsi->already_did_cce = 1;
failed1:
	lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS, "client_connect2");

	return NULL;
}