aa816e98a9
Since new roles may be incompatible with http, add support for alpn names at the role struct, automatic generation of the default list of alpn names that servers advertise, and the ability to override the used alpn names per-vhost and per- client connection. This not only lets you modulate visibility or use of h2, but also enables vhosts that only offer non-http roles, as well as restricting http role vhosts to only alpn identifiers related to http roles.
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <private-libwebsockets.h>
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static int
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rops_handle_POLLIN_pipe(struct lws_context_per_thread *pt, struct lws *wsi,
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struct lws_pollfd *pollfd)
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{
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#if !defined(WIN32) && !defined(_WIN32)
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char s[10];
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int n;
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/*
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* discard the byte(s) that signaled us
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* We really don't care about the number of bytes, but coverity
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* thinks we should.
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*/
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n = read(wsi->desc.sockfd, s, sizeof(s));
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(void)n;
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if (n < 0)
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return LWS_HPI_RET_CLOSE_HANDLED;
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#endif
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/*
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* the poll() wait, or the event loop for libuv etc is a
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* process-wide resource that we interrupted. So let every
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* protocol that may be interested in the pipe event know that
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* it happened.
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*/
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if (lws_broadcast(wsi->context, LWS_CALLBACK_EVENT_WAIT_CANCELLED,
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NULL, 0)) {
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lwsl_info("closed in event cancel\n");
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return LWS_HPI_RET_CLOSE_HANDLED;
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}
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return LWS_HPI_RET_HANDLED;
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}
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struct lws_role_ops role_ops_pipe = {
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/* role name */ "pipe",
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/* alpn id */ NULL,
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/* check_upgrades */ NULL,
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/* init_context */ NULL,
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/* init_vhost */ NULL,
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/* periodic_checks */ NULL,
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/* service_flag_pending */ NULL,
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/* handle_POLLIN */ rops_handle_POLLIN_pipe,
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/* handle_POLLOUT */ NULL,
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/* perform_user_POLLOUT */ NULL,
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/* callback_on_writable */ NULL,
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/* tx_credit */ NULL,
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/* write_role_protocol */ NULL,
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/* rxflow_cache */ NULL,
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/* encapsulation_parent */ NULL,
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/* alpn_negotiated */ NULL,
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/* close_via_role_protocol */ NULL,
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/* close_role */ NULL,
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/* close_kill_connection */ NULL,
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/* destroy_role */ NULL,
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/* writeable cb clnt, srv */ { 0, 0 },
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/* close cb clnt, srv */ { 0, 0 },
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};
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