/*
- * Copyright (c) 2008, 2009 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2012, 2013, 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <sys/types.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
+#include <netdb.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/socket.h>
#include <unistd.h>
+#include "dynamic-string.h"
#include "packets.h"
#include "socket-util.h"
#include "util.h"
#include "stream-provider.h"
#include "stream-fd.h"
-
#include "vlog.h"
-#define THIS_MODULE VLM_stream_tcp
+
+VLOG_DEFINE_THIS_MODULE(stream_tcp);
/* Active TCP. */
static int
new_tcp_stream(const char *name, int fd, int connect_status,
- const struct sockaddr_in *remote, struct stream **streamp)
+ struct stream **streamp)
{
- struct sockaddr_in local;
+ 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);
+ 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;
+ int error = sock_errno();
+ VLOG_ERR("%s: setsockopt(TCP_NODELAY): %s",
+ name, sock_strerror(error));
+ closesocket(fd);
+ return error;
}
- retval = new_fd_stream(name, fd, connect_status, NULL, 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;
+ return new_fd_stream(name, fd, connect_status, streamp);
}
static int
-tcp_open(const char *name, char *suffix, struct stream **streamp)
+tcp_open(const char *name, char *suffix, struct stream **streamp, uint8_t dscp)
{
- struct sockaddr_in sin;
int fd, error;
- error = tcp_open_active(suffix, 0, &sin, &fd);
+ error = inet_open_active(SOCK_STREAM, suffix, 0, NULL, &fd, dscp);
if (fd >= 0) {
- return new_tcp_stream(name, fd, error, &sin, streamp);
+ return new_tcp_stream(name, fd, error, streamp);
} else {
- VLOG_ERR("%s: connect: %s", name, strerror(error));
+ VLOG_ERR("%s: connect: %s", name, ovs_strerror(error));
return error;
}
}
-struct stream_class tcp_stream_class = {
+const struct stream_class tcp_stream_class = {
"tcp", /* name */
+ true, /* needs_probes */
tcp_open, /* open */
NULL, /* close */
NULL, /* connect */
NULL, /* recv */
NULL, /* send */
+ NULL, /* run */
+ NULL, /* run_wait */
NULL, /* wait */
};
+
+#ifdef _WIN32
+static int
+windows_open(const char *name, char *suffix, struct stream **streamp,
+ uint8_t dscp)
+{
+ int error, port;
+ FILE *file;
+ char *suffix_new, *path;
+
+ /* If the path does not contain a ':', assume it is relative to
+ * OVS_RUNDIR. */
+ if (!strchr(suffix, ':')) {
+ path = xasprintf("%s/%s", ovs_rundir(), suffix);
+ } else {
+ path = strdup(suffix);
+ }
+
+ file = fopen(path, "r");
+ if (!file) {
+ error = errno;
+ VLOG_DBG("%s: could not open %s (%s)", name, suffix,
+ ovs_strerror(error));
+ return error;
+ }
+
+ error = fscanf(file, "%d", &port);
+ if (error != 1) {
+ VLOG_ERR("failed to read port from %s", suffix);
+ fclose(file);
+ return EINVAL;
+ }
+ fclose(file);
+
+ suffix_new = xasprintf("127.0.0.1:%d", port);
+
+ error = tcp_open(name, suffix_new, streamp, dscp);
+
+ free(suffix_new);
+ free(path);
+ return error;
+}
+
+const struct stream_class windows_stream_class = {
+ "unix", /* name */
+ false, /* needs_probes */
+ windows_open, /* open */
+ NULL, /* close */
+ NULL, /* connect */
+ NULL, /* recv */
+ NULL, /* send */
+ NULL, /* run */
+ NULL, /* run_wait */
+ NULL, /* wait */
+};
+#endif
\f
/* Passive TCP. */
-static int ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
- struct stream **streamp);
+static int ptcp_accept(int fd, const struct sockaddr_storage *,
+ size_t, struct stream **streamp);
static int
-ptcp_open(const char *name UNUSED, char *suffix, struct pstream **pstreamp)
+ptcp_open(const char *name OVS_UNUSED, char *suffix, struct pstream **pstreamp,
+ uint8_t dscp)
{
+ char bound_name[SS_NTOP_BUFSIZE + 16];
+ char addrbuf[SS_NTOP_BUFSIZE];
+ struct sockaddr_storage ss;
+ uint16_t port;
+ int error;
int fd;
- fd = tcp_open_passive(suffix, 0);
+ fd = inet_open_passive(SOCK_STREAM, suffix, -1, &ss, dscp);
if (fd < 0) {
return -fd;
- } else {
- return new_fd_pstream("ptcp", fd, ptcp_accept, NULL, pstreamp);
}
+
+ port = ss_get_port(&ss);
+ snprintf(bound_name, sizeof bound_name, "ptcp:%"PRIu16":%s",
+ port, ss_format_address(&ss, addrbuf, sizeof addrbuf));
+
+ error = new_fd_pstream(bound_name, fd, ptcp_accept, set_dscp, NULL,
+ pstreamp);
+ if (!error) {
+ pstream_set_bound_port(*pstreamp, htons(port));
+ }
+ return error;
}
static int
-ptcp_accept(int fd, const struct sockaddr *sa, size_t sa_len,
- struct stream **streamp)
+ptcp_accept(int fd, const struct sockaddr_storage *ss,
+ size_t ss_len OVS_UNUSED, struct stream **streamp)
{
- const struct sockaddr_in *sin = (const struct sockaddr_in *) sa;
- char name[128];
+ char name[SS_NTOP_BUFSIZE + 16];
+ char addrbuf[SS_NTOP_BUFSIZE];
- if (sa_len == sizeof(struct sockaddr_in) && sin->sin_family == AF_INET) {
- sprintf(name, "tcp:"IP_FMT, IP_ARGS(&sin->sin_addr));
- sprintf(strchr(name, '\0'), ":%"PRIu16, ntohs(sin->sin_port));
- } else {
- strcpy(name, "tcp");
- }
- return new_tcp_stream(name, fd, 0, sin, streamp);
+ snprintf(name, sizeof name, "tcp:%s:%"PRIu16,
+ ss_format_address(ss, addrbuf, sizeof addrbuf),
+ ss_get_port(ss));
+ return new_tcp_stream(name, fd, 0, streamp);
}
-struct pstream_class ptcp_pstream_class = {
+const struct pstream_class ptcp_pstream_class = {
"ptcp",
+ true,
ptcp_open,
NULL,
NULL,
- NULL
+ NULL,
+ NULL,
};
+#ifdef _WIN32
+static int
+pwindows_open(const char *name OVS_UNUSED, char *suffix,
+ struct pstream **pstreamp, uint8_t dscp)
+{
+ int error;
+ char *suffix_new, *path;
+ FILE *file;
+ struct pstream *listener;
+
+ suffix_new = xstrdup("0:127.0.0.1");
+ error = ptcp_open(name, suffix_new, pstreamp, dscp);
+ if (error) {
+ goto exit;
+ }
+ listener = *pstreamp;
+
+ /* If the path does not contain a ':', assume it is relative to
+ * OVS_RUNDIR. */
+ if (!strchr(suffix, ':')) {
+ path = xasprintf("%s/%s", ovs_rundir(), suffix);
+ } else {
+ path = strdup(suffix);
+ }
+
+ file = fopen(path, "w");
+ if (!file) {
+ error = errno;
+ VLOG_DBG("could not open %s (%s)", path, ovs_strerror(error));
+ goto exit;
+ }
+
+ fprintf(file, "%d\n", ntohs(listener->bound_port));
+ if (fflush(file) == EOF) {
+ error = EIO;
+ VLOG_ERR("write failed for %s", path);
+ fclose(file);
+ goto exit;
+ }
+ fclose(file);
+ free(path);
+
+exit:
+ free(suffix_new);
+ return error;
+}
+
+const struct pstream_class pwindows_pstream_class = {
+ "punix",
+ false,
+ pwindows_open,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+};
+#endif