static int
new_tcp_stream(const char *name, int fd, int connect_status,
const struct sockaddr_in *remote, struct stream **streamp)
{
struct sockaddr_in local;
socklen_t local_len = sizeof local;
int on = 1;
int retval;
/* Get the local IP and port information */
retval = getsockname(fd, (struct sockaddr *)&local, &local_len);
if (retval) {
memset(&local, 0, sizeof local);
}
retval = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
if (retval) {
VLOG_ERR("%s: setsockopt(TCP_NODELAY): %s", name, strerror(errno));
close(fd);
return errno;
}
retval = new_fd_stream(name, fd, connect_status, streamp);
if (!retval) {
struct stream *stream = *streamp;
stream_set_remote_ip(stream, remote->sin_addr.s_addr);
stream_set_remote_port(stream, remote->sin_port);
stream_set_local_ip(stream, local.sin_addr.s_addr);
stream_set_local_port(stream, local.sin_port);
}
return retval;
}
static int
new_tcp_stream(const char *name, int fd, int connect_status,
struct stream **streamp)
{
struct sockaddr_storage local;
socklen_t local_len = sizeof local;
int on = 1;
int retval;
/* Get the local IP and port information */
retval = getsockname(fd, (struct sockaddr *) &local, &local_len);
if (retval) {
memset(&local, 0, sizeof local);
}
retval = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
if (retval) {
int error = sock_errno();
VLOG_ERR("%s: setsockopt(TCP_NODELAY): %s",
name, sock_strerror(error));
close(fd);
return error;
}
return new_fd_stream(name, fd, connect_status, streamp);
}
/* Takes ownership of 'name'. */
static int
new_tcp_stream(char *name, int fd, int connect_status, struct stream **streamp)
{
if (connect_status == 0) {
setsockopt_tcp_nodelay(fd);
}
return new_fd_stream(name, fd, connect_status, AF_INET, streamp);
}
static int
unix_open(const char *name, char *suffix, struct stream **streamp,
uint8_t dscp OVS_UNUSED)
{
char *connect_path;
int fd;
connect_path = abs_file_name(ovs_rundir(), suffix);
fd = make_unix_socket(SOCK_STREAM, true, NULL, connect_path);
if (fd < 0) {
VLOG_DBG("%s: connection failed (%s)",
connect_path, ovs_strerror(-fd));
free(connect_path);
return -fd;
}
free(connect_path);
return new_fd_stream(name, fd, check_connection_completion(fd), streamp);
}
static int
unix_open(const char *name, char *suffix, struct stream **streamp)
{
const char *connect_path = suffix;
char *bind_path;
int fd;
bind_path = xasprintf("/tmp/stream-unix.%ld.%d",
(long int) getpid(), n_unix_sockets++);
fd = make_unix_socket(SOCK_STREAM, true, false, bind_path, connect_path);
if (fd < 0) {
VLOG_ERR("%s: connection to %s failed: %s",
bind_path, connect_path, strerror(-fd));
free(bind_path);
return -fd;
}
return new_fd_stream(name, fd, check_connection_completion(fd),
bind_path, streamp);
}
