2 * Copyright (c) 2008, 2009 Nicira Networks.
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>
28 #include "socket-util.h"
30 #include "stream-provider.h"
31 #include "stream-fd.h"
34 #define THIS_MODULE VLM_stream_tcp
39 new_tcp_stream(const char *name, int fd, int connect_status,
40 const struct sockaddr_in *remote, struct stream **streamp)
42 struct sockaddr_in local;
43 socklen_t local_len = sizeof local;
47 /* Get the local IP and port information */
48 retval = getsockname(fd, (struct sockaddr *)&local, &local_len);
50 memset(&local, 0, sizeof local);
53 retval = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
55 VLOG_ERR("%s: setsockopt(TCP_NODELAY): %s", name, strerror(errno));
60 retval = new_fd_stream(name, fd, connect_status, NULL, streamp);
62 struct stream *stream = *streamp;
63 stream_set_remote_ip(stream, remote->sin_addr.s_addr);
64 stream_set_remote_port(stream, remote->sin_port);
65 stream_set_local_ip(stream, local.sin_addr.s_addr);
66 stream_set_local_port(stream, local.sin_port);
72 tcp_open(const char *name, char *suffix, struct stream **streamp)
74 struct sockaddr_in sin;
77 error = tcp_open_active(suffix, 0, &sin, &fd);
79 return new_tcp_stream(name, fd, error, &sin, streamp);
81 VLOG_ERR("%s: connect: %s", name, strerror(error));
86 struct stream_class tcp_stream_class = {
98 static int ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
99 struct stream **streamp);
102 ptcp_open(const char *name UNUSED, char *suffix, struct pstream **pstreamp)
106 fd = tcp_open_passive(suffix, 0);
110 return new_fd_pstream("ptcp", fd, ptcp_accept, NULL, pstreamp);
115 ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
116 struct stream **streamp)
118 const struct sockaddr_in *sin = (const struct sockaddr_in *) sa;
121 if (sa_len == sizeof(struct sockaddr_in) && sin->sin_family == AF_INET) {
122 sprintf(name, "tcp:"IP_FMT, IP_ARGS(&sin->sin_addr));
123 sprintf(strchr(name, '\0'), ":%"PRIu16, ntohs(sin->sin_port));
127 return new_tcp_stream(name, fd, 0, sin, streamp);
130 struct pstream_class ptcp_pstream_class = {