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Diffstat (limited to 'fs/9p/trans_sock.c')
-rw-r--r--fs/9p/trans_sock.c290
1 files changed, 0 insertions, 290 deletions
diff --git a/fs/9p/trans_sock.c b/fs/9p/trans_sock.c
deleted file mode 100644
index 01e26f0013a..00000000000
--- a/fs/9p/trans_sock.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * linux/fs/9p/trans_socket.c
- *
- * Socket Transport Layer
- *
- * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
- * Copyright (C) 1997-2002 by Ron Minnich <rminnich@sarnoff.com>
- * Copyright (C) 1995, 1996 by Olaf Kirch <okir@monad.swb.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to:
- * Free Software Foundation
- * 51 Franklin Street, Fifth Floor
- * Boston, MA 02111-1301 USA
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/net.h>
-#include <linux/ipv6.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/un.h>
-#include <asm/uaccess.h>
-#include <linux/inet.h>
-#include <linux/idr.h>
-
-#include "debug.h"
-#include "v9fs.h"
-#include "transport.h"
-
-#define V9FS_PORT 564
-
-struct v9fs_trans_sock {
- struct socket *s;
-};
-
-/**
- * v9fs_sock_recv - receive from a socket
- * @v9ses: session information
- * @v: buffer to receive data into
- * @len: size of receive buffer
- *
- */
-
-static int v9fs_sock_recv(struct v9fs_transport *trans, void *v, int len)
-{
- struct msghdr msg;
- struct kvec iov;
- int result;
- mm_segment_t oldfs;
- struct v9fs_trans_sock *ts = trans ? trans->priv : NULL;
-
- if (trans->status == Disconnected)
- return -EREMOTEIO;
-
- result = -EINVAL;
-
- oldfs = get_fs();
- set_fs(get_ds());
-
- iov.iov_base = v;
- iov.iov_len = len;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_iovlen = 1;
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
- msg.msg_namelen = 0;
- msg.msg_flags = MSG_NOSIGNAL;
-
- result = kernel_recvmsg(ts->s, &msg, &iov, 1, len, 0);
-
- dprintk(DEBUG_TRANS, "socket state %d\n", ts->s->state);
- set_fs(oldfs);
-
- if (result <= 0) {
- if (result != -ERESTARTSYS)
- trans->status = Disconnected;
- }
-
- return result;
-}
-
-/**
- * v9fs_sock_send - send to a socket
- * @v9ses: session information
- * @v: buffer to send data from
- * @len: size of send buffer
- *
- */
-
-static int v9fs_sock_send(struct v9fs_transport *trans, void *v, int len)
-{
- struct kvec iov;
- struct msghdr msg;
- int result = -1;
- mm_segment_t oldfs;
- struct v9fs_trans_sock *ts = trans ? trans->priv : NULL;
-
- dprintk(DEBUG_TRANS, "Sending packet size %d (%x)\n", len, len);
- dump_data(v, len);
-
- down(&trans->writelock);
-
- oldfs = get_fs();
- set_fs(get_ds());
- iov.iov_base = v;
- iov.iov_len = len;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_iovlen = 1;
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
- msg.msg_namelen = 0;
- msg.msg_flags = MSG_NOSIGNAL;
- result = kernel_sendmsg(ts->s, &msg, &iov, 1, len);
- set_fs(oldfs);
-
- if (result < 0) {
- if (result != -ERESTARTSYS)
- trans->status = Disconnected;
- }
-
- up(&trans->writelock);
- return result;
-}
-
-/**
- * v9fs_tcp_init - initialize TCP socket
- * @v9ses: session information
- * @addr: address of server to mount
- * @data: mount options
- *
- */
-
-static int
-v9fs_tcp_init(struct v9fs_session_info *v9ses, const char *addr, char *data)
-{
- struct socket *csocket = NULL;
- struct sockaddr_in sin_server;
- int rc = 0;
- struct v9fs_trans_sock *ts = NULL;
- struct v9fs_transport *trans = v9ses->transport;
-
- sema_init(&trans->writelock, 1);
- sema_init(&trans->readlock, 1);
-
- ts = kmalloc(sizeof(struct v9fs_trans_sock), GFP_KERNEL);
-
- if (!ts)
- return -ENOMEM;
-
- trans->priv = ts;
- ts->s = NULL;
-
- if (!addr)
- return -EINVAL;
-
- dprintk(DEBUG_TRANS, "Connecting to %s\n", addr);
-
- 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);
- rc = csocket->ops->connect(csocket,
- (struct sockaddr *)&sin_server,
- sizeof(struct sockaddr_in), 0);
- if (rc < 0) {
- eprintk(KERN_ERR,
- "v9fs_trans_tcp: problem connecting socket to %s\n",
- addr);
- return rc;
- }
- csocket->sk->sk_allocation = GFP_NOIO;
- ts->s = csocket;
- trans->status = Connected;
-
- return 0;
-}
-
-/**
- * v9fs_unix_init - initialize UNIX domain socket
- * @v9ses: session information
- * @dev_name: path to named pipe
- * @data: mount options
- *
- */
-
-static int
-v9fs_unix_init(struct v9fs_session_info *v9ses, const char *dev_name,
- char *data)
-{
- int rc;
- struct socket *csocket;
- struct sockaddr_un sun_server;
- struct v9fs_transport *trans;
- struct v9fs_trans_sock *ts;
-
- rc = 0;
- csocket = NULL;
- trans = v9ses->transport;
-
- if (strlen(dev_name) > UNIX_PATH_MAX) {
- eprintk(KERN_ERR, "v9fs_trans_unix: address too long: %s\n",
- dev_name);
- return -ENOMEM;
- }
-
- ts = kmalloc(sizeof(struct v9fs_trans_sock), GFP_KERNEL);
- if (!ts)
- return -ENOMEM;
-
- trans->priv = ts;
- ts->s = NULL;
-
- sema_init(&trans->writelock, 1);
- sema_init(&trans->readlock, 1);
-
- sun_server.sun_family = PF_UNIX;
- strcpy(sun_server.sun_path, dev_name);
- sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket);
- rc = csocket->ops->connect(csocket, (struct sockaddr *)&sun_server,
- sizeof(struct sockaddr_un) - 1, 0); /* -1 *is* important */
- if (rc < 0) {
- eprintk(KERN_ERR,
- "v9fs_trans_unix: problem connecting socket: %s: %d\n",
- dev_name, rc);
- return rc;
- }
- csocket->sk->sk_allocation = GFP_NOIO;
- ts->s = csocket;
- trans->status = Connected;
-
- return 0;
-}
-
-/**
- * v9fs_sock_close - shutdown socket
- * @trans: private socket structure
- *
- */
-
-static void v9fs_sock_close(struct v9fs_transport *trans)
-{
- struct v9fs_trans_sock *ts;
-
- if (!trans)
- return;
-
- ts = trans->priv;
-
- if ((ts) && (ts->s)) {
- dprintk(DEBUG_TRANS, "closing the socket %p\n", ts->s);
- sock_release(ts->s);
- ts->s = NULL;
- trans->status = Disconnected;
- dprintk(DEBUG_TRANS, "socket closed\n");
- }
-
- if (ts)
- kfree(ts);
-
- trans->priv = NULL;
-}
-
-struct v9fs_transport v9fs_trans_tcp = {
- .init = v9fs_tcp_init,
- .write = v9fs_sock_send,
- .read = v9fs_sock_recv,
- .close = v9fs_sock_close,
-};
-
-struct v9fs_transport v9fs_trans_unix = {
- .init = v9fs_unix_init,
- .write = v9fs_sock_send,
- .read = v9fs_sock_recv,
- .close = v9fs_sock_close,
-};
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