* Based upon Swansea University Computer Society NET3.039
*/
-#include <linux/config.h>
#include <linux/mm.h>
#include <linux/smp_lock.h>
#include <linux/socket.h>
#include <linux/netdevice.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <linux/mutex.h>
#include <linux/wanrouter.h>
#include <linux/if_bridge.h>
#include <linux/if_frad.h>
struct poll_table_struct *wait);
static long sock_ioctl(struct file *file,
unsigned int cmd, unsigned long arg);
+#ifdef CONFIG_COMPAT
+static long compat_sock_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg);
+#endif
static int sock_fasync(int fd, struct file *filp, int on);
static ssize_t sock_readv(struct file *file, const struct iovec *vector,
unsigned long count, loff_t *ppos);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
-
/*
* Socket files have a set of 'special' operations as well as the generic file ones. These don't appear
* in the operation structures but are done directly via the socketcall() multiplexor.
.aio_write = sock_aio_write,
.poll = sock_poll,
.unlocked_ioctl = sock_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = compat_sock_ioctl,
+#endif
.mmap = sock_mmap,
.open = sock_no_open, /* special open code to disallow open via /proc */
.release = sock_close,
.fasync = sock_fasync,
.readv = sock_readv,
.writev = sock_writev,
- .sendpage = sock_sendpage
+ .sendpage = sock_sendpage,
+ .splice_write = generic_splice_sendpage,
};
/*
return -EINVAL;
if(len)
{
+ if (audit_sockaddr(klen, kaddr))
+ return -ENOMEM;
if(copy_to_user(uaddr,kaddr,len))
return -EFAULT;
}
{
sock_inode_cachep = kmem_cache_create("sock_inode_cache",
sizeof(struct socket_alloc),
- 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
+ 0, (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
init_once, NULL);
if (sock_inode_cachep == NULL)
return -ENOMEM;
.statfs = simple_statfs,
};
-static struct super_block *sockfs_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int sockfs_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{
- return get_sb_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC);
+ return get_sb_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC,
+ mnt);
}
static struct vfsmount *sock_mnt __read_mostly;
struct file *file;
struct socket *sock;
+ *err = -EBADF;
file = fget_light(fd, fput_needed);
if (file) {
sock = sock_from_file(file, err);
return -ENXIO;
}
-struct file_operations bad_sock_fops = {
+const struct file_operations bad_sock_fops = {
.owner = THIS_MODULE,
.open = sock_no_open,
};
* with module unload.
*/
-static DECLARE_MUTEX(br_ioctl_mutex);
+static DEFINE_MUTEX(br_ioctl_mutex);
static int (*br_ioctl_hook)(unsigned int cmd, void __user *arg) = NULL;
void brioctl_set(int (*hook)(unsigned int, void __user *))
{
- down(&br_ioctl_mutex);
+ mutex_lock(&br_ioctl_mutex);
br_ioctl_hook = hook;
- up(&br_ioctl_mutex);
+ mutex_unlock(&br_ioctl_mutex);
}
EXPORT_SYMBOL(brioctl_set);
-static DECLARE_MUTEX(vlan_ioctl_mutex);
+static DEFINE_MUTEX(vlan_ioctl_mutex);
static int (*vlan_ioctl_hook)(void __user *arg);
void vlan_ioctl_set(int (*hook)(void __user *))
{
- down(&vlan_ioctl_mutex);
+ mutex_lock(&vlan_ioctl_mutex);
vlan_ioctl_hook = hook;
- up(&vlan_ioctl_mutex);
+ mutex_unlock(&vlan_ioctl_mutex);
}
EXPORT_SYMBOL(vlan_ioctl_set);
-static DECLARE_MUTEX(dlci_ioctl_mutex);
+static DEFINE_MUTEX(dlci_ioctl_mutex);
static int (*dlci_ioctl_hook)(unsigned int, void __user *);
void dlci_ioctl_set(int (*hook)(unsigned int, void __user *))
{
- down(&dlci_ioctl_mutex);
+ mutex_lock(&dlci_ioctl_mutex);
dlci_ioctl_hook = hook;
- up(&dlci_ioctl_mutex);
+ mutex_unlock(&dlci_ioctl_mutex);
}
EXPORT_SYMBOL(dlci_ioctl_set);
if (!br_ioctl_hook)
request_module("bridge");
- down(&br_ioctl_mutex);
+ mutex_lock(&br_ioctl_mutex);
if (br_ioctl_hook)
err = br_ioctl_hook(cmd, argp);
- up(&br_ioctl_mutex);
+ mutex_unlock(&br_ioctl_mutex);
break;
case SIOCGIFVLAN:
case SIOCSIFVLAN:
if (!vlan_ioctl_hook)
request_module("8021q");
- down(&vlan_ioctl_mutex);
+ mutex_lock(&vlan_ioctl_mutex);
if (vlan_ioctl_hook)
err = vlan_ioctl_hook(argp);
- up(&vlan_ioctl_mutex);
+ mutex_unlock(&vlan_ioctl_mutex);
break;
case SIOCGIFDIVERT:
case SIOCSIFDIVERT:
request_module("dlci");
if (dlci_ioctl_hook) {
- down(&dlci_ioctl_mutex);
+ mutex_lock(&dlci_ioctl_mutex);
err = dlci_ioctl_hook(cmd, argp);
- up(&dlci_ioctl_mutex);
+ mutex_unlock(&dlci_ioctl_mutex);
}
break;
default:
newfd = sock_alloc_fd(&newfile);
if (unlikely(newfd < 0)) {
err = newfd;
- goto out_release;
+ sock_release(newsock);
+ goto out_put;
}
err = sock_attach_fd(newsock, newfile);
out:
return err;
out_fd:
- put_filp(newfile);
+ fput(newfile);
put_unused_fd(newfd);
-out_release:
- sock_release(newsock);
goto out_put;
}
int cpu;
int counter = 0;
- for_each_cpu(cpu)
+ for_each_possible_cpu(cpu)
counter += per_cpu(sockets_in_use, cpu);
/* It can be negative, by the way. 8) */
}
#endif /* CONFIG_PROC_FS */
+#ifdef CONFIG_COMPAT
+static long compat_sock_ioctl(struct file *file, unsigned cmd,
+ unsigned long arg)
+{
+ struct socket *sock = file->private_data;
+ int ret = -ENOIOCTLCMD;
+
+ if (sock->ops->compat_ioctl)
+ ret = sock->ops->compat_ioctl(sock, cmd, arg);
+
+ return ret;
+}
+#endif
+
/* ABI emulation layers need these two */
EXPORT_SYMBOL(move_addr_to_kernel);
EXPORT_SYMBOL(move_addr_to_user);