2 * Copyright (c) 2008, 2009, 2010, 2012, 2013 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
21 #include <sys/types.h>
22 #include <netinet/in.h>
23 #include <netinet/tcp.h>
26 #include <sys/socket.h>
29 #include "socket-util.h"
31 #include "stream-provider.h"
32 #include "stream-fd.h"
35 VLOG_DEFINE_THIS_MODULE(stream_tcp);
40 new_tcp_stream(const char *name, int fd, int connect_status,
41 const struct sockaddr_in *remote, struct stream **streamp)
43 struct sockaddr_in local;
44 socklen_t local_len = sizeof local;
48 /* Get the local IP and port information */
49 retval = getsockname(fd, (struct sockaddr *)&local, &local_len);
51 memset(&local, 0, sizeof local);
54 retval = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
56 VLOG_ERR("%s: setsockopt(TCP_NODELAY): %s", name, ovs_strerror(errno));
61 retval = new_fd_stream(name, fd, connect_status, streamp);
63 struct stream *stream = *streamp;
64 stream_set_remote_ip(stream, remote->sin_addr.s_addr);
65 stream_set_remote_port(stream, remote->sin_port);
66 stream_set_local_ip(stream, local.sin_addr.s_addr);
67 stream_set_local_port(stream, local.sin_port);
73 tcp_open(const char *name, char *suffix, struct stream **streamp, uint8_t dscp)
75 struct sockaddr_in sin;
78 error = inet_open_active(SOCK_STREAM, suffix, 0, &sin, &fd, dscp);
80 return new_tcp_stream(name, fd, error, &sin, streamp);
82 VLOG_ERR("%s: connect: %s", name, ovs_strerror(error));
87 const struct stream_class tcp_stream_class = {
89 true, /* needs_probes */
102 static int ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
103 struct stream **streamp);
106 ptcp_open(const char *name OVS_UNUSED, char *suffix, struct pstream **pstreamp,
109 struct sockaddr_in sin;
110 char bound_name[128];
114 fd = inet_open_passive(SOCK_STREAM, suffix, -1, &sin, dscp);
119 sprintf(bound_name, "ptcp:%"PRIu16":"IP_FMT,
120 ntohs(sin.sin_port), IP_ARGS(sin.sin_addr.s_addr));
121 error = new_fd_pstream(bound_name, fd, ptcp_accept, set_dscp, NULL,
124 pstream_set_bound_port(*pstreamp, sin.sin_port);
130 ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
131 struct stream **streamp)
133 const struct sockaddr_in *sin = (const struct sockaddr_in *) sa;
136 if (sa_len == sizeof(struct sockaddr_in) && sin->sin_family == AF_INET) {
137 sprintf(name, "tcp:"IP_FMT, IP_ARGS(sin->sin_addr.s_addr));
138 sprintf(strchr(name, '\0'), ":%"PRIu16, ntohs(sin->sin_port));
142 return new_tcp_stream(name, fd, 0, sin, streamp);
145 const struct pstream_class ptcp_pstream_class = {