--- /dev/null
+/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
+ * Junior University
+ *
+ * We are making the OpenFlow specification and associated documentation
+ * (Software) available for public use and benefit with the expectation
+ * that others will use, modify and enhance the Software and contribute
+ * those enhancements back to the community. However, since we would
+ * like to make the Software available for broadest use, with as few
+ * restrictions as possible permission is hereby granted, free of
+ * charge, to any person obtaining a copy of this Software to deal in
+ * the Software under the copyrights without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * The name and trademarks of copyright holder(s) may NOT be used in
+ * advertising or publicity pertaining to the Software or any
+ * derivatives without specific, written prior permission.
+ */
+
+#include <config.h>
+#include "vconn.h"
+#include <assert.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <netdb.h>
+#include <poll.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "buffer.h"
+#include "socket-util.h"
+#include "util.h"
+#include "openflow.h"
+#include "ofp-print.h"
+#include "packets.h"
+#include "poll-loop.h"
+#include "vconn-stream.h"
+
+#include "vlog.h"
+#define THIS_MODULE VLM_vconn_unix
+
+/* Active UNIX socket. */
+
+/* Number of unix sockets created so far, to ensure binding path uniqueness. */
+static int n_unix_sockets;
+
+static int
+unix_open(const char *name, char *suffix, struct vconn **vconnp)
+{
+ const char *connect_path = suffix;
+ char bind_path[128];
+ int fd;
+
+ sprintf(bind_path, "/tmp/vconn-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));
+ return -fd;
+ }
+
+ return new_stream_vconn(name, fd, check_connection_completion(fd),
+ 0, vconnp);
+}
+
+struct vconn_class unix_vconn_class = {
+ .name = "unix",
+ .open = unix_open,
+};
+\f
+/* Passive UNIX socket. */
+
+static int punix_accept(int fd, const struct sockaddr *sa, size_t sa_len,
+ struct vconn **vconnp);
+
+static int
+punix_open(const char *name, char *suffix, struct vconn **vconnp)
+{
+ int fd;
+
+ fd = make_unix_socket(SOCK_STREAM, true, true, suffix, NULL);
+ if (fd < 0) {
+ VLOG_ERR("%s: binding failed: %s", suffix, strerror(errno));
+ return errno;
+ }
+
+ return new_pstream_vconn("punix", fd, punix_accept, vconnp);
+}
+
+static int
+punix_accept(int fd, const struct sockaddr *sa, size_t sa_len,
+ struct vconn **vconnp)
+{
+ const struct sockaddr_un *sun = (const struct sockaddr_un *) sa;
+ char name[128];
+
+ if (sa_len >= offsetof(struct sockaddr_un, sun_path)) {
+ snprintf(name, sizeof name, "unix:%.*s",
+ (int) (sa_len - offsetof(struct sockaddr_un, sun_path)),
+ sun->sun_path);
+ } else {
+ strcpy(name, "unix");
+ }
+ return new_stream_vconn(name, fd, 0, 0, vconnp);
+}
+
+struct vconn_class punix_vconn_class = {
+ .name = "punix",
+ .open = punix_open,
+};
+
projects / openvswitch / commitdiff