summaryrefslogtreecommitdiffstats
path: root/thirdparty/libwebsockets/lib/core/adopt.c
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/libwebsockets/lib/core/adopt.c')
-rw-r--r--thirdparty/libwebsockets/lib/core/adopt.c414
1 files changed, 0 insertions, 414 deletions
diff --git a/thirdparty/libwebsockets/lib/core/adopt.c b/thirdparty/libwebsockets/lib/core/adopt.c
deleted file mode 100644
index 49ac5af161..0000000000
--- a/thirdparty/libwebsockets/lib/core/adopt.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * libwebsockets - small server side websockets and web server implementation
- *
- * Copyright (C) 2010-2018 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 "core/private.h"
-
-
-static int
-lws_get_idlest_tsi(struct lws_context *context)
-{
- unsigned int lowest = ~0;
- int n = 0, hit = -1;
-
- for (; n < context->count_threads; n++) {
- if ((unsigned int)context->pt[n].fds_count !=
- context->fd_limit_per_thread - 1 &&
- (unsigned int)context->pt[n].fds_count < lowest) {
- lowest = context->pt[n].fds_count;
- hit = n;
- }
- }
-
- return hit;
-}
-
-struct lws *
-lws_create_new_server_wsi(struct lws_vhost *vhost, int fixed_tsi)
-{
- struct lws *new_wsi;
- int n = fixed_tsi;
-
- if (n < 0)
- n = lws_get_idlest_tsi(vhost->context);
-
- if (n < 0) {
- lwsl_err("no space for new conn\n");
- return NULL;
- }
-
- new_wsi = lws_zalloc(sizeof(struct lws), "new server wsi");
- if (new_wsi == NULL) {
- lwsl_err("Out of memory for new connection\n");
- return NULL;
- }
-
- new_wsi->tsi = n;
- lwsl_debug("new wsi %p joining vhost %s, tsi %d\n", new_wsi,
- vhost->name, new_wsi->tsi);
-
- lws_vhost_bind_wsi(vhost, new_wsi);
- new_wsi->context = vhost->context;
- new_wsi->pending_timeout = NO_PENDING_TIMEOUT;
- new_wsi->rxflow_change_to = LWS_RXFLOW_ALLOW;
-
- /* initialize the instance struct */
-
- lwsi_set_state(new_wsi, LRS_UNCONNECTED);
- new_wsi->hdr_parsing_completed = 0;
-
-#ifdef LWS_WITH_TLS
- new_wsi->tls.use_ssl = LWS_SSL_ENABLED(vhost);
-#endif
-
- /*
- * these can only be set once the protocol is known
- * we set an un-established connection's protocol pointer
- * to the start of the supported list, so it can look
- * for matching ones during the handshake
- */
- new_wsi->protocol = vhost->protocols;
- new_wsi->user_space = NULL;
- new_wsi->desc.sockfd = LWS_SOCK_INVALID;
- new_wsi->position_in_fds_table = LWS_NO_FDS_POS;
-
- vhost->context->count_wsi_allocated++;
-
- /*
- * outermost create notification for wsi
- * no user_space because no protocol selection
- */
- vhost->protocols[0].callback(new_wsi, LWS_CALLBACK_WSI_CREATE, NULL,
- NULL, 0);
-
- return new_wsi;
-}
-
-
-/* if not a socket, it's a raw, non-ssl file descriptor */
-
-LWS_VISIBLE struct lws *
-lws_adopt_descriptor_vhost(struct lws_vhost *vh, lws_adoption_type type,
- lws_sock_file_fd_type fd, const char *vh_prot_name,
- struct lws *parent)
-{
- struct lws_context *context = vh->context;
- struct lws *new_wsi;
- struct lws_context_per_thread *pt;
- int n;
-
-#if defined(LWS_WITH_PEER_LIMITS)
- struct lws_peer *peer = NULL;
-
- if (type & LWS_ADOPT_SOCKET) {
- peer = lws_get_or_create_peer(vh, fd.sockfd);
-
- if (peer && context->ip_limit_wsi &&
- peer->count_wsi >= context->ip_limit_wsi) {
- lwsl_notice("Peer reached wsi limit %d\n",
- context->ip_limit_wsi);
- lws_stats_atomic_bump(context, &context->pt[0],
- LWSSTATS_C_PEER_LIMIT_WSI_DENIED,
- 1);
- return NULL;
- }
- }
-#endif
-
- n = -1;
- if (parent)
- n = parent->tsi;
- new_wsi = lws_create_new_server_wsi(vh, n);
- if (!new_wsi) {
- if (type & LWS_ADOPT_SOCKET)
- compatible_close(fd.sockfd);
- return NULL;
- }
-#if defined(LWS_WITH_PEER_LIMITS)
- if (peer)
- lws_peer_add_wsi(context, peer, new_wsi);
-#endif
- pt = &context->pt[(int)new_wsi->tsi];
- lws_stats_atomic_bump(context, pt, LWSSTATS_C_CONNECTIONS, 1);
-
- if (parent) {
- new_wsi->parent = parent;
- new_wsi->sibling_list = parent->child_list;
- parent->child_list = new_wsi;
- }
-
- new_wsi->desc = fd;
-
- if (vh_prot_name) {
- new_wsi->protocol = lws_vhost_name_to_protocol(new_wsi->vhost,
- vh_prot_name);
- if (!new_wsi->protocol) {
- lwsl_err("Protocol %s not enabled on vhost %s\n",
- vh_prot_name, new_wsi->vhost->name);
- goto bail;
- }
- if (lws_ensure_user_space(new_wsi)) {
- lwsl_notice("OOM trying to get user_space\n");
- goto bail;
- }
- }
-
- if (!LWS_SSL_ENABLED(new_wsi->vhost) || !(type & LWS_ADOPT_SOCKET))
- type &= ~LWS_ADOPT_ALLOW_SSL;
-
- if (lws_role_call_adoption_bind(new_wsi, type, vh_prot_name)) {
- lwsl_err("Unable to find a role that can adopt descriptor\n");
- goto bail;
- }
-
- /*
- * A new connection was accepted. Give the user a chance to
- * set properties of the newly created wsi. There's no protocol
- * selected yet so we issue this to the vhosts's default protocol,
- * itself by default protocols[0]
- */
- n = LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED;
- if (!(type & LWS_ADOPT_HTTP)) {
- if (!(type & LWS_ADOPT_SOCKET))
- n = LWS_CALLBACK_RAW_ADOPT_FILE;
- else
- n = LWS_CALLBACK_RAW_ADOPT;
- }
-
- lwsl_debug("new wsi wsistate 0x%x\n", new_wsi->wsistate);
-
- if (context->event_loop_ops->accept)
- if (context->event_loop_ops->accept(new_wsi))
- goto fail;
-
- if (!(type & LWS_ADOPT_ALLOW_SSL)) {
- lws_pt_lock(pt, __func__);
- if (__insert_wsi_socket_into_fds(context, new_wsi)) {
- lws_pt_unlock(pt);
- lwsl_err("%s: fail inserting socket\n", __func__);
- goto fail;
- }
- lws_pt_unlock(pt);
- } else
- if (lws_server_socket_service_ssl(new_wsi, fd.sockfd)) {
- lwsl_info("%s: fail ssl negotiation\n", __func__);
- goto fail;
- }
-
- /*
- * by deferring callback to this point, after insertion to fds,
- * lws_callback_on_writable() can work from the callback
- */
- if ((new_wsi->protocol->callback)(new_wsi, n, new_wsi->user_space,
- NULL, 0))
- goto fail;
-
- /* role may need to do something after all adoption completed */
-
- lws_role_call_adoption_bind(new_wsi, type | _LWS_ADOPT_FINISH,
- vh_prot_name);
-
- lws_cancel_service_pt(new_wsi);
-
- return new_wsi;
-
-fail:
- if (type & LWS_ADOPT_SOCKET)
- lws_close_free_wsi(new_wsi, LWS_CLOSE_STATUS_NOSTATUS,
- "adopt skt fail");
-
- return NULL;
-
-bail:
- lwsl_notice("%s: exiting on bail\n", __func__);
- if (parent)
- parent->child_list = new_wsi->sibling_list;
- if (new_wsi->user_space)
- lws_free(new_wsi->user_space);
-
- vh->context->count_wsi_allocated--;
-
- lws_vhost_unbind_wsi(new_wsi);
- lws_free(new_wsi);
-
- compatible_close(fd.sockfd);
-
- return NULL;
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket_vhost(struct lws_vhost *vh, lws_sockfd_type accept_fd)
-{
- lws_sock_file_fd_type fd;
-
- fd.sockfd = accept_fd;
- return lws_adopt_descriptor_vhost(vh, LWS_ADOPT_SOCKET |
- LWS_ADOPT_HTTP | LWS_ADOPT_ALLOW_SSL, fd, NULL, NULL);
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd)
-{
- return lws_adopt_socket_vhost(context->vhost_list, accept_fd);
-}
-
-/* Common read-buffer adoption for lws_adopt_*_readbuf */
-static struct lws*
-adopt_socket_readbuf(struct lws *wsi, const char *readbuf, size_t len)
-{
- struct lws_context_per_thread *pt;
- struct lws_pollfd *pfd;
- int n;
-
- if (!wsi)
- return NULL;
-
- if (!readbuf || len == 0)
- return wsi;
-
- if (wsi->position_in_fds_table == LWS_NO_FDS_POS)
- return wsi;
-
- pt = &wsi->context->pt[(int)wsi->tsi];
-
- n = lws_buflist_append_segment(&wsi->buflist, (const uint8_t *)readbuf,
- len);
- if (n < 0)
- goto bail;
- if (n)
- lws_dll_lws_add_front(&wsi->dll_buflist, &pt->dll_head_buflist);
-
- /*
- * we can't process the initial read data until we can attach an ah.
- *
- * if one is available, get it and place the data in his ah rxbuf...
- * wsi with ah that have pending rxbuf get auto-POLLIN service.
- *
- * no autoservice because we didn't get a chance to attach the
- * readbuf data to wsi or ah yet, and we will do it next if we get
- * the ah.
- */
- if (wsi->http.ah || !lws_header_table_attach(wsi, 0)) {
-
- lwsl_notice("%s: calling service on readbuf ah\n", __func__);
-
- /*
- * unlike a normal connect, we have the headers already
- * (or the first part of them anyway).
- * libuv won't come back and service us without a network
- * event, so we need to do the header service right here.
- */
- pfd = &pt->fds[wsi->position_in_fds_table];
- pfd->revents |= LWS_POLLIN;
- lwsl_err("%s: calling service\n", __func__);
- if (lws_service_fd_tsi(wsi->context, pfd, wsi->tsi))
- /* service closed us */
- return NULL;
-
- return wsi;
- }
- lwsl_err("%s: deferring handling ah\n", __func__);
-
- return wsi;
-
-bail:
- lws_close_free_wsi(wsi, LWS_CLOSE_STATUS_NOSTATUS,
- "adopt skt readbuf fail");
-
- return NULL;
-}
-
-LWS_EXTERN struct lws *
-lws_create_adopt_udp(struct lws_vhost *vhost, int port, int flags,
- const char *protocol_name, struct lws *parent_wsi)
-{
- lws_sock_file_fd_type sock;
- struct addrinfo h, *r, *rp;
- struct lws *wsi = NULL;
- char buf[16];
- int n;
-
- memset(&h, 0, sizeof(h));
- h.ai_family = AF_UNSPEC; /* Allow IPv4 or IPv6 */
- h.ai_socktype = SOCK_DGRAM;
- h.ai_protocol = IPPROTO_UDP;
- h.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
-
- lws_snprintf(buf, sizeof(buf), "%u", port);
- n = getaddrinfo(NULL, buf, &h, &r);
- if (n) {
- lwsl_info("%s: getaddrinfo error: %s\n", __func__,
- gai_strerror(n));
- goto bail;
- }
-
- for (rp = r; rp; rp = rp->ai_next) {
- sock.sockfd = socket(rp->ai_family, rp->ai_socktype,
- rp->ai_protocol);
- if (sock.sockfd != LWS_SOCK_INVALID)
- break;
- }
- if (!rp) {
- lwsl_err("%s: unable to create INET socket\n", __func__);
- goto bail1;
- }
-
- if ((flags & LWS_CAUDP_BIND) && bind(sock.sockfd, rp->ai_addr,
-#if defined(_WIN32)
- (int)rp->ai_addrlen
-#else
- rp->ai_addrlen
-#endif
- ) == -1) {
- lwsl_err("%s: bind failed\n", __func__);
- goto bail2;
- }
-
- wsi = lws_adopt_descriptor_vhost(vhost, LWS_ADOPT_RAW_SOCKET_UDP, sock,
- protocol_name, parent_wsi);
- if (!wsi)
- lwsl_err("%s: udp adoption failed\n", __func__);
-
-bail2:
- if (!wsi)
- compatible_close((int)sock.sockfd);
-bail1:
- freeaddrinfo(r);
-
-bail:
- return wsi;
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
- const char *readbuf, size_t len)
-{
- return adopt_socket_readbuf(lws_adopt_socket(context, accept_fd),
- readbuf, len);
-}
-
-LWS_VISIBLE struct lws *
-lws_adopt_socket_vhost_readbuf(struct lws_vhost *vhost,
- lws_sockfd_type accept_fd,
- const char *readbuf, size_t len)
-{
- return adopt_socket_readbuf(lws_adopt_socket_vhost(vhost, accept_fd),
- readbuf, len);
-}