1 files changed, 118 insertions, 0 deletions
diff --git a/lib/vconn-unix.c b/lib/vconn-unix.c
new file mode 100644
index 000000000..54b5e23db
--- /dev/null
+++ b/lib/vconn-unix.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2008, 2009 Nicira Networks.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#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 "ofpbuf.h"
+#include "openflow/openflow.h"
+#include "packets.h"
+#include "poll-loop.h"
+#include "socket-util.h"
+#include "util.h"
+#include "vconn-provider.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, true, vconnp);
+}
+
+struct vconn_class unix_vconn_class = {
+    "unix",                     /* name */
+    unix_open,                  /* open */
+    NULL,                       /* close */
+    NULL,                       /* connect */
+    NULL,                       /* recv */
+    NULL,                       /* send */
+    NULL,                       /* wait */
+};
+
+/* 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 UNUSED, char *suffix, struct pvconn **pvconnp)
+{
+    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_pvconn("punix", fd, punix_accept, pvconnp);
+}
+
+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;
+    int name_len = get_unix_name_len(sa_len);
+    char name[128];
+
+    if (name_len > 0) {
+        snprintf(name, sizeof name, "unix:%.*s", name_len, sun->sun_path);
+    } else {
+        strcpy(name, "unix");
+    }
+    return new_stream_vconn(name, fd, 0, 0, true, vconnp);
+}
+
+struct pvconn_class punix_pvconn_class = {
+    "punix",
+    punix_open,
+    NULL,
+    NULL,
+    NULL
+};
+