+static int v9fs_fd_init(struct v9fs_session_info *v9ses, const char *addr,
+ char *data)
+{
+ if (v9ses->rfdno == ~0 || v9ses->wfdno == ~0) {
+ printk(KERN_ERR "v9fs: Insufficient options for proto=fd\n");
+ return -ENOPROTOOPT;
+ }
+
+ return v9fs_fd_open(v9ses, v9ses->rfdno, v9ses->wfdno);
+}
+
+static int v9fs_socket_open(struct v9fs_session_info *v9ses,
+ struct socket *csocket)
+{
+ int fd, ret;
+
+ csocket->sk->sk_allocation = GFP_NOIO;
+ if ((fd = sock_map_fd(csocket)) < 0) {
+ eprintk(KERN_ERR, "v9fs_socket_open: failed to map fd\n");
+ ret = fd;
+ release_csocket:
+ sock_release(csocket);
+ return ret;
+ }
+
+ if ((ret = v9fs_fd_open(v9ses, fd, fd)) < 0) {
+ sockfd_put(csocket);
+ eprintk(KERN_ERR, "v9fs_socket_open: failed to open fd\n");
+ goto release_csocket;
+ }
+
+ ((struct v9fs_trans_fd *)v9ses->transport->priv)->rd->f_flags |=
+ O_NONBLOCK;
+ return 0;
+}
+
+static int v9fs_tcp_init(struct v9fs_session_info *v9ses, const char *addr,
+ char *data)
+{
+ int ret;
+ struct socket *csocket = NULL;
+ struct sockaddr_in sin_server;
+
+ sin_server.sin_family = AF_INET;
+ sin_server.sin_addr.s_addr = in_aton(addr);
+ sin_server.sin_port = htons(v9ses->port);
+ sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &csocket);
+
+ if (!csocket) {
+ eprintk(KERN_ERR, "v9fs_trans_tcp: problem creating socket\n");
+ return -1;
+ }
+
+ ret = csocket->ops->connect(csocket,
+ (struct sockaddr *)&sin_server,
+ sizeof(struct sockaddr_in), 0);
+ if (ret < 0) {
+ eprintk(KERN_ERR,
+ "v9fs_trans_tcp: problem connecting socket to %s\n",
+ addr);
+ return ret;
+ }
+
+ return v9fs_socket_open(v9ses, csocket);
+}
+
+static int
+v9fs_unix_init(struct v9fs_session_info *v9ses, const char *addr, char *data)
+{
+ int ret;
+ struct socket *csocket;
+ struct sockaddr_un sun_server;
+
+ if (strlen(addr) > UNIX_PATH_MAX) {
+ eprintk(KERN_ERR, "v9fs_trans_unix: address too long: %s\n",
+ addr);
+ return -ENAMETOOLONG;
+ }
+
+ sun_server.sun_family = PF_UNIX;
+ strcpy(sun_server.sun_path, addr);
+ sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket);
+ ret = csocket->ops->connect(csocket, (struct sockaddr *)&sun_server,
+ sizeof(struct sockaddr_un) - 1, 0);
+ if (ret < 0) {
+ eprintk(KERN_ERR,
+ "v9fs_trans_unix: problem connecting socket: %s: %d\n",
+ addr, ret);
+ return ret;
+ }
+
+ return v9fs_socket_open(v9ses, csocket);
+}