| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc/grpc.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/useful.h> |
| #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" |
| #include "src/core/lib/channel/http_server_filter.h" |
| #include "src/core/lib/iomgr/resolve_address.h" |
| #include "src/core/lib/iomgr/tcp_server.h" |
| #include "src/core/lib/surface/api_trace.h" |
| #include "src/core/lib/surface/server.h" |
| |
| static void new_transport(grpc_exec_ctx *exec_ctx, void *server, |
| grpc_endpoint *tcp, grpc_pollset *accepting_pollset, |
| grpc_tcp_server_acceptor *acceptor) { |
| /* |
| * Beware that the call to grpc_create_chttp2_transport() has to happen before |
| * grpc_tcp_server_destroy(). This is fine here, but similar code |
| * asynchronously doing a handshake instead of calling grpc_tcp_server_start() |
| * (as in server_secure_chttp2.c) needs to add synchronization to avoid this |
| * case. |
| */ |
| grpc_transport *transport = grpc_create_chttp2_transport( |
| exec_ctx, grpc_server_get_channel_args(server), tcp, 0); |
| grpc_server_setup_transport(exec_ctx, server, transport, accepting_pollset, |
| grpc_server_get_channel_args(server)); |
| grpc_chttp2_transport_start_reading(exec_ctx, transport, NULL, 0); |
| } |
| |
| /* Server callback: start listening on our ports */ |
| static void start(grpc_exec_ctx *exec_ctx, grpc_server *server, void *tcpp, |
| grpc_pollset **pollsets, size_t pollset_count) { |
| grpc_tcp_server *tcp = tcpp; |
| grpc_tcp_server_start(exec_ctx, tcp, pollsets, pollset_count, new_transport, |
| server); |
| } |
| |
| /* Server callback: destroy the tcp listener (so we don't generate further |
| callbacks) */ |
| static void destroy(grpc_exec_ctx *exec_ctx, grpc_server *server, void *tcpp, |
| grpc_closure *destroy_done) { |
| grpc_tcp_server *tcp = tcpp; |
| grpc_tcp_server_unref(exec_ctx, tcp); |
| grpc_exec_ctx_enqueue(exec_ctx, destroy_done, true, NULL); |
| } |
| |
| int grpc_server_add_insecure_http2_port(grpc_server *server, const char *addr) { |
| grpc_resolved_addresses *resolved = NULL; |
| grpc_tcp_server *tcp = NULL; |
| size_t i; |
| unsigned count = 0; |
| int port_num = -1; |
| int port_temp; |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| |
| GRPC_API_TRACE("grpc_server_add_insecure_http2_port(server=%p, addr=%s)", 2, |
| (server, addr)); |
| |
| resolved = grpc_blocking_resolve_address(addr, "http"); |
| if (!resolved) { |
| goto error; |
| } |
| |
| tcp = grpc_tcp_server_create(NULL); |
| GPR_ASSERT(tcp); |
| |
| for (i = 0; i < resolved->naddrs; i++) { |
| port_temp = grpc_tcp_server_add_port( |
| tcp, (struct sockaddr *)&resolved->addrs[i].addr, |
| resolved->addrs[i].len); |
| if (port_temp > 0) { |
| if (port_num == -1) { |
| port_num = port_temp; |
| } else { |
| GPR_ASSERT(port_num == port_temp); |
| } |
| count++; |
| } |
| } |
| if (count == 0) { |
| gpr_log(GPR_ERROR, "No address added out of total %" PRIuPTR " resolved", |
| resolved->naddrs); |
| goto error; |
| } |
| if (count != resolved->naddrs) { |
| gpr_log(GPR_ERROR, |
| "Only %d addresses added out of total %" PRIuPTR " resolved", count, |
| resolved->naddrs); |
| } |
| grpc_resolved_addresses_destroy(resolved); |
| |
| /* Register with the server only upon success */ |
| grpc_server_add_listener(&exec_ctx, server, tcp, start, destroy); |
| goto done; |
| |
| /* Error path: cleanup and return */ |
| error: |
| if (resolved) { |
| grpc_resolved_addresses_destroy(resolved); |
| } |
| if (tcp) { |
| grpc_tcp_server_unref(&exec_ctx, tcp); |
| } |
| port_num = 0; |
| |
| done: |
| grpc_exec_ctx_finish(&exec_ctx); |
| return port_num; |
| } |