#include <linux/audit.h>
#include <linux/wireless.h>
#include <linux/nsproxy.h>
+#include <linux/magic.h>
+#include <linux/slab.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <net/compat.h>
#include <net/wext.h>
+#include <net/cls_cgroup.h>
#include <net/sock.h>
#include <linux/netfilter.h>
+#include <linux/if_tun.h>
+#include <linux/ipv6_route.h>
+#include <linux/route.h>
+#include <linux/sockios.h>
+#include <linux/atalk.h>
+
static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
static ssize_t sock_sendpage(struct file *file, struct page *page,
int offset, size_t size, loff_t *ppos, int more);
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
/*
*/
static DEFINE_SPINLOCK(net_family_lock);
-static const struct net_proto_family *net_families[NPROTO] __read_mostly;
+static const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
/*
* Statistics counters of the socket lists
*/
-static DEFINE_PER_CPU(int, sockets_in_use) = 0;
+static DEFINE_PER_CPU(int, sockets_in_use);
/*
* Support routines.
* divide and look after the messy bits.
*/
-#define MAX_SOCK_ADDR 128 /* 108 for Unix domain -
- 16 for IP, 16 for IPX,
- 24 for IPv6,
- about 80 for AX.25
- must be at least one bigger than
- the AF_UNIX size (see net/unix/af_unix.c
- :unix_mkname()).
- */
-
/**
* move_addr_to_kernel - copy a socket address into kernel space
* @uaddr: Address in user space
* specified. Zero is returned for a success.
*/
-int move_addr_to_user(struct sockaddr *kaddr, int klen, void __user *uaddr,
- int __user *ulen)
+static int move_addr_to_user(struct sockaddr *kaddr, int klen,
+ void __user *uaddr, int __user *ulen)
{
int err;
int len;
return __put_user(klen, ulen);
}
-#define SOCKFS_MAGIC 0x534F434B
-
static struct kmem_cache *sock_inode_cachep __read_mostly;
static struct inode *sock_alloc_inode(struct super_block *sb)
{
struct socket_alloc *ei;
+ struct socket_wq *wq;
ei = kmem_cache_alloc(sock_inode_cachep, GFP_KERNEL);
if (!ei)
return NULL;
- init_waitqueue_head(&ei->socket.wait);
+ wq = kmalloc(sizeof(*wq), GFP_KERNEL);
+ if (!wq) {
+ kmem_cache_free(sock_inode_cachep, ei);
+ return NULL;
+ }
+ init_waitqueue_head(&wq->wait);
+ wq->fasync_list = NULL;
+ RCU_INIT_POINTER(ei->socket.wq, wq);
- ei->socket.fasync_list = NULL;
ei->socket.state = SS_UNCONNECTED;
ei->socket.flags = 0;
ei->socket.ops = NULL;
static void sock_destroy_inode(struct inode *inode)
{
- kmem_cache_free(sock_inode_cachep,
- container_of(inode, struct socket_alloc, vfs_inode));
+ struct socket_alloc *ei;
+ struct socket_wq *wq;
+
+ ei = container_of(inode, struct socket_alloc, vfs_inode);
+ wq = rcu_dereference_protected(ei->socket.wq, 1);
+ kfree_rcu(wq, rcu);
+ kmem_cache_free(sock_inode_cachep, ei);
}
static void init_once(void *foo)
return 0;
}
-static struct super_operations sockfs_ops = {
- .alloc_inode = sock_alloc_inode,
- .destroy_inode =sock_destroy_inode,
- .statfs = simple_statfs,
-};
-
-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,
- mnt);
-}
-
-static struct vfsmount *sock_mnt __read_mostly;
-
-static struct file_system_type sock_fs_type = {
- .name = "sockfs",
- .get_sb = sockfs_get_sb,
- .kill_sb = kill_anon_super,
+static const struct super_operations sockfs_ops = {
+ .alloc_inode = sock_alloc_inode,
+ .destroy_inode = sock_destroy_inode,
+ .statfs = simple_statfs,
};
-static int sockfs_delete_dentry(struct dentry *dentry)
-{
- /*
- * At creation time, we pretended this dentry was hashed
- * (by clearing DCACHE_UNHASHED bit in d_flags)
- * At delete time, we restore the truth : not hashed.
- * (so that dput() can proceed correctly)
- */
- dentry->d_flags |= DCACHE_UNHASHED;
- return 0;
-}
-
/*
* sockfs_dname() is called from d_path().
*/
}
static const struct dentry_operations sockfs_dentry_operations = {
- .d_delete = sockfs_delete_dentry,
.d_dname = sockfs_dname,
};
+static struct dentry *sockfs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data)
+{
+ return mount_pseudo(fs_type, "socket:", &sockfs_ops,
+ &sockfs_dentry_operations, SOCKFS_MAGIC);
+}
+
+static struct vfsmount *sock_mnt __read_mostly;
+
+static struct file_system_type sock_fs_type = {
+ .name = "sockfs",
+ .mount = sockfs_mount,
+ .kill_sb = kill_anon_super,
+};
+
/*
* Obtains the first available file descriptor and sets it up for use.
*
* but we take care of internal coherence yet.
*/
-static int sock_alloc_fd(struct file **filep, int flags)
+static int sock_alloc_file(struct socket *sock, struct file **f, int flags)
{
+ struct qstr name = { .name = "" };
+ struct path path;
+ struct file *file;
int fd;
fd = get_unused_fd_flags(flags);
- if (likely(fd >= 0)) {
- struct file *file = get_empty_filp();
-
- *filep = file;
- if (unlikely(!file)) {
- put_unused_fd(fd);
- return -ENFILE;
- }
- } else
- *filep = NULL;
- return fd;
-}
+ if (unlikely(fd < 0))
+ return fd;
-static int sock_attach_fd(struct socket *sock, struct file *file, int flags)
-{
- struct dentry *dentry;
- struct qstr name = { .name = "" };
-
- dentry = d_alloc(sock_mnt->mnt_sb->s_root, &name);
- if (unlikely(!dentry))
+ path.dentry = d_alloc_pseudo(sock_mnt->mnt_sb, &name);
+ if (unlikely(!path.dentry)) {
+ put_unused_fd(fd);
return -ENOMEM;
+ }
+ path.mnt = mntget(sock_mnt);
- dentry->d_op = &sockfs_dentry_operations;
- /*
- * We dont want to push this dentry into global dentry hash table.
- * We pretend dentry is already hashed, by unsetting DCACHE_UNHASHED
- * This permits a working /proc/$pid/fd/XXX on sockets
- */
- dentry->d_flags &= ~DCACHE_UNHASHED;
- d_instantiate(dentry, SOCK_INODE(sock));
+ d_instantiate(path.dentry, SOCK_INODE(sock));
+ SOCK_INODE(sock)->i_fop = &socket_file_ops;
- sock->file = file;
- init_file(file, sock_mnt, dentry, FMODE_READ | FMODE_WRITE,
+ file = alloc_file(&path, FMODE_READ | FMODE_WRITE,
&socket_file_ops);
- SOCK_INODE(sock)->i_fop = &socket_file_ops;
+ if (unlikely(!file)) {
+ /* drop dentry, keep inode */
+ ihold(path.dentry->d_inode);
+ path_put(&path);
+ put_unused_fd(fd);
+ return -ENFILE;
+ }
+
+ sock->file = file;
file->f_flags = O_RDWR | (flags & O_NONBLOCK);
file->f_pos = 0;
file->private_data = sock;
- return 0;
+ *f = file;
+ return fd;
}
int sock_map_fd(struct socket *sock, int flags)
{
struct file *newfile;
- int fd = sock_alloc_fd(&newfile, flags);
+ int fd = sock_alloc_file(sock, &newfile, flags);
- if (likely(fd >= 0)) {
- int err = sock_attach_fd(sock, newfile, flags);
-
- if (unlikely(err < 0)) {
- put_filp(newfile);
- put_unused_fd(fd);
- return err;
- }
+ if (likely(fd >= 0))
fd_install(fd, newfile);
- }
+
return fd;
}
+EXPORT_SYMBOL(sock_map_fd);
static struct socket *sock_from_file(struct file *file, int *err)
{
}
/**
- * sockfd_lookup - Go from a file number to its socket slot
+ * sockfd_lookup - Go from a file number to its socket slot
* @fd: file handle
* @err: pointer to an error code return
*
fput(file);
return sock;
}
+EXPORT_SYMBOL(sockfd_lookup);
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
{
struct inode *inode;
struct socket *sock;
- inode = new_inode(sock_mnt->mnt_sb);
+ inode = new_inode_pseudo(sock_mnt->mnt_sb);
if (!inode)
return NULL;
sock = SOCKET_I(inode);
+ kmemcheck_annotate_bitfield(sock, type);
+ inode->i_ino = get_next_ino();
inode->i_mode = S_IFSOCK | S_IRWXUGO;
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
const struct file_operations bad_sock_fops = {
.owner = THIS_MODULE,
.open = sock_no_open,
+ .llseek = noop_llseek,
};
/**
module_put(owner);
}
- if (sock->fasync_list)
+ if (rcu_dereference_protected(sock->wq, 1)->fasync_list)
printk(KERN_ERR "sock_release: fasync list not empty!\n");
percpu_sub(sockets_in_use, 1);
}
sock->file = NULL;
}
+EXPORT_SYMBOL(sock_release);
-int sock_tx_timestamp(struct msghdr *msg, struct sock *sk,
- union skb_shared_tx *shtx)
+int sock_tx_timestamp(struct sock *sk, __u8 *tx_flags)
{
- shtx->flags = 0;
+ *tx_flags = 0;
if (sock_flag(sk, SOCK_TIMESTAMPING_TX_HARDWARE))
- shtx->hardware = 1;
+ *tx_flags |= SKBTX_HW_TSTAMP;
if (sock_flag(sk, SOCK_TIMESTAMPING_TX_SOFTWARE))
- shtx->software = 1;
+ *tx_flags |= SKBTX_SW_TSTAMP;
return 0;
}
EXPORT_SYMBOL(sock_tx_timestamp);
-static inline int __sock_sendmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, size_t size)
+static inline int __sock_sendmsg_nosec(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t size)
{
struct sock_iocb *si = kiocb_to_siocb(iocb);
- int err;
+
+ sock_update_classid(sock->sk);
si->sock = sock;
si->scm = NULL;
si->msg = msg;
si->size = size;
- err = security_socket_sendmsg(sock, msg, size);
- if (err)
- return err;
-
return sock->ops->sendmsg(iocb, sock, msg, size);
}
+static inline int __sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t size)
+{
+ int err = security_socket_sendmsg(sock, msg, size);
+
+ return err ?: __sock_sendmsg_nosec(iocb, sock, msg, size);
+}
+
int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
{
struct kiocb iocb;
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_sendmsg);
+
+static int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg, size_t size)
+{
+ struct kiocb iocb;
+ struct sock_iocb siocb;
+ int ret;
+
+ init_sync_kiocb(&iocb, NULL);
+ iocb.private = &siocb;
+ ret = __sock_sendmsg_nosec(&iocb, sock, msg, size);
+ if (-EIOCBQUEUED == ret)
+ ret = wait_on_sync_kiocb(&iocb);
+ return ret;
+}
int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size)
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_sendmsg);
static int ktime2ts(ktime_t kt, struct timespec *ts)
{
put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP,
sizeof(tv), &tv);
} else {
- struct timespec ts;
- skb_get_timestampns(skb, &ts);
+ skb_get_timestampns(skb, &ts[0]);
put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS,
- sizeof(ts), &ts);
+ sizeof(ts[0]), &ts[0]);
}
}
put_cmsg(msg, SOL_SOCKET,
SCM_TIMESTAMPING, sizeof(ts), &ts);
}
-
EXPORT_SYMBOL_GPL(__sock_recv_timestamp);
-static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, size_t size, int flags)
+static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb)
+{
+ if (sock_flag(sk, SOCK_RXQ_OVFL) && skb && skb->dropcount)
+ put_cmsg(msg, SOL_SOCKET, SO_RXQ_OVFL,
+ sizeof(__u32), &skb->dropcount);
+}
+
+void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb)
+{
+ sock_recv_timestamp(msg, sk, skb);
+ sock_recv_drops(msg, sk, skb);
+}
+EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops);
+
+static inline int __sock_recvmsg_nosec(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t size, int flags)
{
- int err;
struct sock_iocb *si = kiocb_to_siocb(iocb);
+ sock_update_classid(sock->sk);
+
si->sock = sock;
si->scm = NULL;
si->msg = msg;
si->size = size;
si->flags = flags;
- err = security_socket_recvmsg(sock, msg, size, flags);
- if (err)
- return err;
-
return sock->ops->recvmsg(iocb, sock, msg, size, flags);
}
+static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t size, int flags)
+{
+ int err = security_socket_recvmsg(sock, msg, size, flags);
+
+ return err ?: __sock_recvmsg_nosec(iocb, sock, msg, size, flags);
+}
+
int sock_recvmsg(struct socket *sock, struct msghdr *msg,
size_t size, int flags)
{
ret = wait_on_sync_kiocb(&iocb);
return ret;
}
+EXPORT_SYMBOL(sock_recvmsg);
+
+static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
+ size_t size, int flags)
+{
+ struct kiocb iocb;
+ struct sock_iocb siocb;
+ int ret;
+
+ init_sync_kiocb(&iocb, NULL);
+ iocb.private = &siocb;
+ ret = __sock_recvmsg_nosec(&iocb, sock, msg, size, flags);
+ if (-EIOCBQUEUED == ret)
+ ret = wait_on_sync_kiocb(&iocb);
+ return ret;
+}
+/**
+ * kernel_recvmsg - Receive a message from a socket (kernel space)
+ * @sock: The socket to receive the message from
+ * @msg: Received message
+ * @vec: Input s/g array for message data
+ * @num: Size of input s/g array
+ * @size: Number of bytes to read
+ * @flags: Message flags (MSG_DONTWAIT, etc...)
+ *
+ * On return the msg structure contains the scatter/gather array passed in the
+ * vec argument. The array is modified so that it consists of the unfilled
+ * portion of the original array.
+ *
+ * The returned value is the total number of bytes received, or an error.
+ */
int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
struct kvec *vec, size_t num, size_t size, int flags)
{
set_fs(oldfs);
return result;
}
+EXPORT_SYMBOL(kernel_recvmsg);
static void sock_aio_dtor(struct kiocb *iocb)
{
if (more)
flags |= MSG_MORE;
- return sock->ops->sendpage(sock, page, offset, size, flags);
+ return kernel_sendpage(sock, page, offset, size, flags);
}
static ssize_t sock_splice_read(struct file *file, loff_t *ppos,
- struct pipe_inode_info *pipe, size_t len,
+ struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
struct socket *sock = file->private_data;
if (unlikely(!sock->ops->splice_read))
return -EINVAL;
+ sock_update_classid(sock->sk);
+
return sock->ops->splice_read(sock, ppos, pipe, len, flags);
}
*/
static DEFINE_MUTEX(br_ioctl_mutex);
-static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg) = NULL;
+static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg);
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *))
{
br_ioctl_hook = hook;
mutex_unlock(&br_ioctl_mutex);
}
-
EXPORT_SYMBOL(brioctl_set);
static DEFINE_MUTEX(vlan_ioctl_mutex);
vlan_ioctl_hook = hook;
mutex_unlock(&vlan_ioctl_mutex);
}
-
EXPORT_SYMBOL(vlan_ioctl_set);
static DEFINE_MUTEX(dlci_ioctl_mutex);
dlci_ioctl_hook = hook;
mutex_unlock(&dlci_ioctl_mutex);
}
-
EXPORT_SYMBOL(dlci_ioctl_set);
+static long sock_do_ioctl(struct net *net, struct socket *sock,
+ unsigned int cmd, unsigned long arg)
+{
+ int err;
+ void __user *argp = (void __user *)arg;
+
+ err = sock->ops->ioctl(sock, cmd, arg);
+
+ /*
+ * If this ioctl is unknown try to hand it down
+ * to the NIC driver.
+ */
+ if (err == -ENOIOCTLCMD)
+ err = dev_ioctl(net, cmd, argp);
+
+ return err;
+}
+
/*
* With an ioctl, arg may well be a user mode pointer, but we don't know
* what to do with it - that's up to the protocol still.
if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) {
err = dev_ioctl(net, cmd, argp);
} else
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_WEXT_CORE
if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) {
err = dev_ioctl(net, cmd, argp);
} else
-#endif /* CONFIG_WIRELESS_EXT */
+#endif
switch (cmd) {
case FIOSETOWN:
case SIOCSPGRP:
mutex_unlock(&dlci_ioctl_mutex);
break;
default:
- err = sock->ops->ioctl(sock, cmd, arg);
-
- /*
- * If this ioctl is unknown try to hand it down
- * to the NIC driver.
- */
- if (err == -ENOIOCTLCMD)
- err = dev_ioctl(net, cmd, argp);
+ err = sock_do_ioctl(net, sock, cmd, arg);
break;
}
return err;
sock = NULL;
goto out;
}
+EXPORT_SYMBOL(sock_create_lite);
/* No kernel lock held - perfect */
static unsigned int sock_poll(struct file *file, poll_table *wait)
* 1. fasync_list is modified only under process context socket lock
* i.e. under semaphore.
* 2. fasync_list is used under read_lock(&sk->sk_callback_lock)
- * or under socket lock.
- * 3. fasync_list can be used from softirq context, so that
- * modification under socket lock have to be enhanced with
- * write_lock_bh(&sk->sk_callback_lock).
- * --ANK (990710)
+ * or under socket lock
*/
static int sock_fasync(int fd, struct file *filp, int on)
{
- struct fasync_struct *fa, *fna = NULL, **prev;
- struct socket *sock;
- struct sock *sk;
-
- if (on) {
- fna = kmalloc(sizeof(struct fasync_struct), GFP_KERNEL);
- if (fna == NULL)
- return -ENOMEM;
- }
-
- sock = filp->private_data;
+ struct socket *sock = filp->private_data;
+ struct sock *sk = sock->sk;
+ struct socket_wq *wq;
- sk = sock->sk;
- if (sk == NULL) {
- kfree(fna);
+ if (sk == NULL)
return -EINVAL;
- }
lock_sock(sk);
+ wq = rcu_dereference_protected(sock->wq, sock_owned_by_user(sk));
+ fasync_helper(fd, filp, on, &wq->fasync_list);
- spin_lock(&filp->f_lock);
- if (on)
- filp->f_flags |= FASYNC;
+ if (!wq->fasync_list)
+ sock_reset_flag(sk, SOCK_FASYNC);
else
- filp->f_flags &= ~FASYNC;
- spin_unlock(&filp->f_lock);
-
- prev = &(sock->fasync_list);
+ sock_set_flag(sk, SOCK_FASYNC);
- for (fa = *prev; fa != NULL; prev = &fa->fa_next, fa = *prev)
- if (fa->fa_file == filp)
- break;
-
- if (on) {
- if (fa != NULL) {
- write_lock_bh(&sk->sk_callback_lock);
- fa->fa_fd = fd;
- write_unlock_bh(&sk->sk_callback_lock);
-
- kfree(fna);
- goto out;
- }
- fna->fa_file = filp;
- fna->fa_fd = fd;
- fna->magic = FASYNC_MAGIC;
- fna->fa_next = sock->fasync_list;
- write_lock_bh(&sk->sk_callback_lock);
- sock->fasync_list = fna;
- write_unlock_bh(&sk->sk_callback_lock);
- } else {
- if (fa != NULL) {
- write_lock_bh(&sk->sk_callback_lock);
- *prev = fa->fa_next;
- write_unlock_bh(&sk->sk_callback_lock);
- kfree(fa);
- }
- }
-
-out:
- release_sock(sock->sk);
+ release_sock(sk);
return 0;
}
-/* This function may be called only under socket lock or callback_lock */
+/* This function may be called only under socket lock or callback_lock or rcu_lock */
int sock_wake_async(struct socket *sock, int how, int band)
{
- if (!sock || !sock->fasync_list)
+ struct socket_wq *wq;
+
+ if (!sock)
return -1;
+ rcu_read_lock();
+ wq = rcu_dereference(sock->wq);
+ if (!wq || !wq->fasync_list) {
+ rcu_read_unlock();
+ return -1;
+ }
switch (how) {
case SOCK_WAKE_WAITD:
if (test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
/* fall through */
case SOCK_WAKE_IO:
call_kill:
- __kill_fasync(sock->fasync_list, SIGIO, band);
+ kill_fasync(&wq->fasync_list, SIGIO, band);
break;
case SOCK_WAKE_URG:
- __kill_fasync(sock->fasync_list, SIGURG, band);
+ kill_fasync(&wq->fasync_list, SIGURG, band);
}
+ rcu_read_unlock();
return 0;
}
+EXPORT_SYMBOL(sock_wake_async);
-static int __sock_create(struct net *net, int family, int type, int protocol,
+int __sock_create(struct net *net, int family, int type, int protocol,
struct socket **res, int kern)
{
int err;
* requested real, full-featured networking support upon configuration.
* Otherwise module support will break!
*/
- if (net_families[family] == NULL)
+ if (rcu_access_pointer(net_families[family]) == NULL)
request_module("net-pf-%d", family);
#endif
/* Now protected by module ref count */
rcu_read_unlock();
- err = pf->create(net, sock, protocol);
+ err = pf->create(net, sock, protocol, kern);
if (err < 0)
goto out_module_put;
rcu_read_unlock();
goto out_sock_release;
}
+EXPORT_SYMBOL(__sock_create);
int sock_create(int family, int type, int protocol, struct socket **res)
{
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
}
+EXPORT_SYMBOL(sock_create);
int sock_create_kern(int family, int type, int protocol, struct socket **res)
{
return __sock_create(&init_net, family, type, protocol, res, 1);
}
+EXPORT_SYMBOL(sock_create_kern);
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
if (err < 0)
goto out_release_both;
- fd1 = sock_alloc_fd(&newfile1, flags & O_CLOEXEC);
+ fd1 = sock_alloc_file(sock1, &newfile1, flags);
if (unlikely(fd1 < 0)) {
err = fd1;
goto out_release_both;
}
- fd2 = sock_alloc_fd(&newfile2, flags & O_CLOEXEC);
+ fd2 = sock_alloc_file(sock2, &newfile2, flags);
if (unlikely(fd2 < 0)) {
err = fd2;
- put_filp(newfile1);
- put_unused_fd(fd1);
- goto out_release_both;
- }
-
- err = sock_attach_fd(sock1, newfile1, flags & O_NONBLOCK);
- if (unlikely(err < 0)) {
- goto out_fd2;
- }
-
- err = sock_attach_fd(sock2, newfile2, flags & O_NONBLOCK);
- if (unlikely(err < 0)) {
fput(newfile1);
- goto out_fd1;
+ put_unused_fd(fd1);
+ sock_release(sock2);
+ goto out;
}
audit_fd_pair(fd1, fd2);
sock_release(sock1);
out:
return err;
-
-out_fd2:
- put_filp(newfile1);
- sock_release(sock1);
-out_fd1:
- put_filp(newfile2);
- sock_release(sock2);
- put_unused_fd(fd1);
- put_unused_fd(fd2);
- goto out;
}
/*
goto out;
err = -ENFILE;
- if (!(newsock = sock_alloc()))
+ newsock = sock_alloc();
+ if (!newsock)
goto out_put;
newsock->type = sock->type;
*/
__module_get(newsock->ops->owner);
- newfd = sock_alloc_fd(&newfile, flags & O_CLOEXEC);
+ newfd = sock_alloc_file(newsock, &newfile, flags);
if (unlikely(newfd < 0)) {
err = newfd;
sock_release(newsock);
goto out_put;
}
- err = sock_attach_fd(newsock, newfile, flags & O_NONBLOCK);
- if (err < 0)
- goto out_fd_simple;
-
err = security_socket_accept(sock, newsock);
if (err)
goto out_fd;
fput_light(sock->file, fput_needed);
out:
return err;
-out_fd_simple:
- sock_release(newsock);
- put_filp(newfile);
- put_unused_fd(newfd);
- goto out_put;
out_fd:
fput(newfile);
put_unused_fd(newfd);
struct iovec iov;
int fput_needed;
+ if (len > INT_MAX)
+ len = INT_MAX;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;
int err, err2;
int fput_needed;
+ if (size > INT_MAX)
+ size = INT_MAX;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
goto out;
#define COMPAT_NAMELEN(msg) COMPAT_MSG(msg, msg_namelen)
#define COMPAT_FLAGS(msg) COMPAT_MSG(msg, msg_flags)
-/*
- * BSD sendmsg interface
- */
+struct used_address {
+ struct sockaddr_storage name;
+ unsigned int name_len;
+};
-SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
+static int __sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
+ struct msghdr *msg_sys, unsigned flags,
+ struct used_address *used_address)
{
struct compat_msghdr __user *msg_compat =
(struct compat_msghdr __user *)msg;
- struct socket *sock;
struct sockaddr_storage address;
struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
unsigned char ctl[sizeof(struct cmsghdr) + 20]
__attribute__ ((aligned(sizeof(__kernel_size_t))));
/* 20 is size of ipv6_pktinfo */
unsigned char *ctl_buf = ctl;
- struct msghdr msg_sys;
int err, ctl_len, iov_size, total_len;
- int fput_needed;
err = -EFAULT;
if (MSG_CMSG_COMPAT & flags) {
- if (get_compat_msghdr(&msg_sys, msg_compat))
+ if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
return -EFAULT;
- sock = sockfd_lookup_light(fd, &err, &fput_needed);
- if (!sock)
- goto out;
-
/* do not move before msg_sys is valid */
err = -EMSGSIZE;
- if (msg_sys.msg_iovlen > UIO_MAXIOV)
- goto out_put;
+ if (msg_sys->msg_iovlen > UIO_MAXIOV)
+ goto out;
/* Check whether to allocate the iovec area */
err = -ENOMEM;
- iov_size = msg_sys.msg_iovlen * sizeof(struct iovec);
- if (msg_sys.msg_iovlen > UIO_FASTIOV) {
+ iov_size = msg_sys->msg_iovlen * sizeof(struct iovec);
+ if (msg_sys->msg_iovlen > UIO_FASTIOV) {
iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL);
if (!iov)
- goto out_put;
+ goto out;
}
/* This will also move the address data into kernel space */
if (MSG_CMSG_COMPAT & flags) {
- err = verify_compat_iovec(&msg_sys, iov,
+ err = verify_compat_iovec(msg_sys, iov,
(struct sockaddr *)&address,
VERIFY_READ);
} else
- err = verify_iovec(&msg_sys, iov,
+ err = verify_iovec(msg_sys, iov,
(struct sockaddr *)&address,
VERIFY_READ);
if (err < 0)
err = -ENOBUFS;
- if (msg_sys.msg_controllen > INT_MAX)
+ if (msg_sys->msg_controllen > INT_MAX)
goto out_freeiov;
- ctl_len = msg_sys.msg_controllen;
+ ctl_len = msg_sys->msg_controllen;
if ((MSG_CMSG_COMPAT & flags) && ctl_len) {
err =
- cmsghdr_from_user_compat_to_kern(&msg_sys, sock->sk, ctl,
+ cmsghdr_from_user_compat_to_kern(msg_sys, sock->sk, ctl,
sizeof(ctl));
if (err)
goto out_freeiov;
- ctl_buf = msg_sys.msg_control;
- ctl_len = msg_sys.msg_controllen;
+ ctl_buf = msg_sys->msg_control;
+ ctl_len = msg_sys->msg_controllen;
} else if (ctl_len) {
if (ctl_len > sizeof(ctl)) {
ctl_buf = sock_kmalloc(sock->sk, ctl_len, GFP_KERNEL);
}
err = -EFAULT;
/*
- * Careful! Before this, msg_sys.msg_control contains a user pointer.
+ * Careful! Before this, msg_sys->msg_control contains a user pointer.
* Afterwards, it will be a kernel pointer. Thus the compiler-assisted
* checking falls down on this.
*/
- if (copy_from_user(ctl_buf, (void __user *)msg_sys.msg_control,
+ if (copy_from_user(ctl_buf,
+ (void __user __force *)msg_sys->msg_control,
ctl_len))
goto out_freectl;
- msg_sys.msg_control = ctl_buf;
+ msg_sys->msg_control = ctl_buf;
}
- msg_sys.msg_flags = flags;
+ msg_sys->msg_flags = flags;
if (sock->file->f_flags & O_NONBLOCK)
- msg_sys.msg_flags |= MSG_DONTWAIT;
- err = sock_sendmsg(sock, &msg_sys, total_len);
+ msg_sys->msg_flags |= MSG_DONTWAIT;
+ /*
+ * If this is sendmmsg() and current destination address is same as
+ * previously succeeded address, omit asking LSM's decision.
+ * used_address->name_len is initialized to UINT_MAX so that the first
+ * destination address never matches.
+ */
+ if (used_address && msg_sys->msg_name &&
+ used_address->name_len == msg_sys->msg_namelen &&
+ !memcmp(&used_address->name, msg_sys->msg_name,
+ used_address->name_len)) {
+ err = sock_sendmsg_nosec(sock, msg_sys, total_len);
+ goto out_freectl;
+ }
+ err = sock_sendmsg(sock, msg_sys, total_len);
+ /*
+ * If this is sendmmsg() and sending to current destination address was
+ * successful, remember it.
+ */
+ if (used_address && err >= 0) {
+ used_address->name_len = msg_sys->msg_namelen;
+ if (msg_sys->msg_name)
+ memcpy(&used_address->name, msg_sys->msg_name,
+ used_address->name_len);
+ }
out_freectl:
if (ctl_buf != ctl)
out_freeiov:
if (iov != iovstack)
sock_kfree_s(sock->sk, iov, iov_size);
-out_put:
+out:
+ return err;
+}
+
+/*
+ * BSD sendmsg interface
+ */
+
+SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
+{
+ int fput_needed, err;
+ struct msghdr msg_sys;
+ struct socket *sock = sockfd_lookup_light(fd, &err, &fput_needed);
+
+ if (!sock)
+ goto out;
+
+ err = __sys_sendmsg(sock, msg, &msg_sys, flags, NULL);
+
fput_light(sock->file, fput_needed);
out:
return err;
}
/*
- * BSD recvmsg interface
+ * Linux sendmmsg interface
*/
-SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg,
- unsigned int, flags)
+int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
+ unsigned int flags)
{
- struct compat_msghdr __user *msg_compat =
- (struct compat_msghdr __user *)msg;
+ int fput_needed, err, datagrams;
struct socket *sock;
- struct iovec iovstack[UIO_FASTIOV];
- struct iovec *iov = iovstack;
+ struct mmsghdr __user *entry;
+ struct compat_mmsghdr __user *compat_entry;
struct msghdr msg_sys;
- unsigned long cmsg_ptr;
- int err, iov_size, total_len, len;
- int fput_needed;
-
- /* kernel mode address */
- struct sockaddr_storage addr;
+ struct used_address used_address;
- /* user mode address pointers */
- struct sockaddr __user *uaddr;
- int __user *uaddr_len;
+ if (vlen > UIO_MAXIOV)
+ vlen = UIO_MAXIOV;
- if (MSG_CMSG_COMPAT & flags) {
- if (get_compat_msghdr(&msg_sys, msg_compat))
- return -EFAULT;
- }
- else if (copy_from_user(&msg_sys, msg, sizeof(struct msghdr)))
- return -EFAULT;
+ datagrams = 0;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
- goto out;
+ return err;
+
+ used_address.name_len = UINT_MAX;
+ entry = mmsg;
+ compat_entry = (struct compat_mmsghdr __user *)mmsg;
+ err = 0;
+
+ while (datagrams < vlen) {
+ if (MSG_CMSG_COMPAT & flags) {
+ err = __sys_sendmsg(sock, (struct msghdr __user *)compat_entry,
+ &msg_sys, flags, &used_address);
+ if (err < 0)
+ break;
+ err = __put_user(err, &compat_entry->msg_len);
+ ++compat_entry;
+ } else {
+ err = __sys_sendmsg(sock, (struct msghdr __user *)entry,
+ &msg_sys, flags, &used_address);
+ if (err < 0)
+ break;
+ err = put_user(err, &entry->msg_len);
+ ++entry;
+ }
+
+ if (err)
+ break;
+ ++datagrams;
+ }
+
+ fput_light(sock->file, fput_needed);
+
+ /* We only return an error if no datagrams were able to be sent */
+ if (datagrams != 0)
+ return datagrams;
+
+ return err;
+}
+
+SYSCALL_DEFINE4(sendmmsg, int, fd, struct mmsghdr __user *, mmsg,
+ unsigned int, vlen, unsigned int, flags)
+{
+ return __sys_sendmmsg(fd, mmsg, vlen, flags);
+}
+
+static int __sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
+ struct msghdr *msg_sys, unsigned flags, int nosec)
+{
+ struct compat_msghdr __user *msg_compat =
+ (struct compat_msghdr __user *)msg;
+ struct iovec iovstack[UIO_FASTIOV];
+ struct iovec *iov = iovstack;
+ unsigned long cmsg_ptr;
+ int err, iov_size, total_len, len;
+
+ /* kernel mode address */
+ struct sockaddr_storage addr;
+
+ /* user mode address pointers */
+ struct sockaddr __user *uaddr;
+ int __user *uaddr_len;
+
+ if (MSG_CMSG_COMPAT & flags) {
+ if (get_compat_msghdr(msg_sys, msg_compat))
+ return -EFAULT;
+ } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
+ return -EFAULT;
err = -EMSGSIZE;
- if (msg_sys.msg_iovlen > UIO_MAXIOV)
- goto out_put;
+ if (msg_sys->msg_iovlen > UIO_MAXIOV)
+ goto out;
/* Check whether to allocate the iovec area */
err = -ENOMEM;
- iov_size = msg_sys.msg_iovlen * sizeof(struct iovec);
- if (msg_sys.msg_iovlen > UIO_FASTIOV) {
+ iov_size = msg_sys->msg_iovlen * sizeof(struct iovec);
+ if (msg_sys->msg_iovlen > UIO_FASTIOV) {
iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL);
if (!iov)
- goto out_put;
+ goto out;
}
/*
* kernel msghdr to use the kernel address space)
*/
- uaddr = (__force void __user *)msg_sys.msg_name;
+ uaddr = (__force void __user *)msg_sys->msg_name;
uaddr_len = COMPAT_NAMELEN(msg);
if (MSG_CMSG_COMPAT & flags) {
- err = verify_compat_iovec(&msg_sys, iov,
+ err = verify_compat_iovec(msg_sys, iov,
(struct sockaddr *)&addr,
VERIFY_WRITE);
} else
- err = verify_iovec(&msg_sys, iov,
+ err = verify_iovec(msg_sys, iov,
(struct sockaddr *)&addr,
VERIFY_WRITE);
if (err < 0)
goto out_freeiov;
total_len = err;
- cmsg_ptr = (unsigned long)msg_sys.msg_control;
- msg_sys.msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT);
+ cmsg_ptr = (unsigned long)msg_sys->msg_control;
+ msg_sys->msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT);
if (sock->file->f_flags & O_NONBLOCK)
flags |= MSG_DONTWAIT;
- err = sock_recvmsg(sock, &msg_sys, total_len, flags);
+ err = (nosec ? sock_recvmsg_nosec : sock_recvmsg)(sock, msg_sys,
+ total_len, flags);
if (err < 0)
goto out_freeiov;
len = err;
if (uaddr != NULL) {
err = move_addr_to_user((struct sockaddr *)&addr,
- msg_sys.msg_namelen, uaddr,
+ msg_sys->msg_namelen, uaddr,
uaddr_len);
if (err < 0)
goto out_freeiov;
}
- err = __put_user((msg_sys.msg_flags & ~MSG_CMSG_COMPAT),
+ err = __put_user((msg_sys->msg_flags & ~MSG_CMSG_COMPAT),
COMPAT_FLAGS(msg));
if (err)
goto out_freeiov;
if (MSG_CMSG_COMPAT & flags)
- err = __put_user((unsigned long)msg_sys.msg_control - cmsg_ptr,
+ err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr,
&msg_compat->msg_controllen);
else
- err = __put_user((unsigned long)msg_sys.msg_control - cmsg_ptr,
+ err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr,
&msg->msg_controllen);
if (err)
goto out_freeiov;
out_freeiov:
if (iov != iovstack)
sock_kfree_s(sock->sk, iov, iov_size);
-out_put:
+out:
+ return err;
+}
+
+/*
+ * BSD recvmsg interface
+ */
+
+SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg,
+ unsigned int, flags)
+{
+ int fput_needed, err;
+ struct msghdr msg_sys;
+ struct socket *sock = sockfd_lookup_light(fd, &err, &fput_needed);
+
+ if (!sock)
+ goto out;
+
+ err = __sys_recvmsg(sock, msg, &msg_sys, flags, 0);
+
fput_light(sock->file, fput_needed);
out:
return err;
}
-#ifdef __ARCH_WANT_SYS_SOCKETCALL
+/*
+ * Linux recvmmsg interface
+ */
+
+int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,
+ unsigned int flags, struct timespec *timeout)
+{
+ int fput_needed, err, datagrams;
+ struct socket *sock;
+ struct mmsghdr __user *entry;
+ struct compat_mmsghdr __user *compat_entry;
+ struct msghdr msg_sys;
+ struct timespec end_time;
+
+ if (timeout &&
+ poll_select_set_timeout(&end_time, timeout->tv_sec,
+ timeout->tv_nsec))
+ return -EINVAL;
+
+ datagrams = 0;
+ sock = sockfd_lookup_light(fd, &err, &fput_needed);
+ if (!sock)
+ return err;
+
+ err = sock_error(sock->sk);
+ if (err)
+ goto out_put;
+
+ entry = mmsg;
+ compat_entry = (struct compat_mmsghdr __user *)mmsg;
+
+ while (datagrams < vlen) {
+ /*
+ * No need to ask LSM for more than the first datagram.
+ */
+ if (MSG_CMSG_COMPAT & flags) {
+ err = __sys_recvmsg(sock, (struct msghdr __user *)compat_entry,
+ &msg_sys, flags & ~MSG_WAITFORONE,
+ datagrams);
+ if (err < 0)
+ break;
+ err = __put_user(err, &compat_entry->msg_len);
+ ++compat_entry;
+ } else {
+ err = __sys_recvmsg(sock, (struct msghdr __user *)entry,
+ &msg_sys, flags & ~MSG_WAITFORONE,
+ datagrams);
+ if (err < 0)
+ break;
+ err = put_user(err, &entry->msg_len);
+ ++entry;
+ }
+
+ if (err)
+ break;
+ ++datagrams;
+
+ /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
+ if (flags & MSG_WAITFORONE)
+ flags |= MSG_DONTWAIT;
+
+ if (timeout) {
+ ktime_get_ts(timeout);
+ *timeout = timespec_sub(end_time, *timeout);
+ if (timeout->tv_sec < 0) {
+ timeout->tv_sec = timeout->tv_nsec = 0;
+ break;
+ }
+
+ /* Timeout, return less than vlen datagrams */
+ if (timeout->tv_nsec == 0 && timeout->tv_sec == 0)
+ break;
+ }
+
+ /* Out of band data, return right away */
+ if (msg_sys.msg_flags & MSG_OOB)
+ break;
+ }
+
+out_put:
+ fput_light(sock->file, fput_needed);
+
+ if (err == 0)
+ return datagrams;
+
+ if (datagrams != 0) {
+ /*
+ * We may return less entries than requested (vlen) if the
+ * sock is non block and there aren't enough datagrams...
+ */
+ if (err != -EAGAIN) {
+ /*
+ * ... or if recvmsg returns an error after we
+ * received some datagrams, where we record the
+ * error to return on the next call or if the
+ * app asks about it using getsockopt(SO_ERROR).
+ */
+ sock->sk->sk_err = -err;
+ }
+
+ return datagrams;
+ }
+
+ return err;
+}
+
+SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,
+ unsigned int, vlen, unsigned int, flags,
+ struct timespec __user *, timeout)
+{
+ int datagrams;
+ struct timespec timeout_sys;
+
+ if (!timeout)
+ return __sys_recvmmsg(fd, mmsg, vlen, flags, NULL);
+
+ if (copy_from_user(&timeout_sys, timeout, sizeof(timeout_sys)))
+ return -EFAULT;
+
+ datagrams = __sys_recvmmsg(fd, mmsg, vlen, flags, &timeout_sys);
+
+ if (datagrams > 0 &&
+ copy_to_user(timeout, &timeout_sys, sizeof(timeout_sys)))
+ datagrams = -EFAULT;
+
+ return datagrams;
+}
+
+#ifdef __ARCH_WANT_SYS_SOCKETCALL
/* Argument list sizes for sys_socketcall */
#define AL(x) ((x) * sizeof(unsigned long))
-static const unsigned char nargs[19]={
- AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
- AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
- AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(4)
+static const unsigned char nargs[21] = {
+ AL(0), AL(3), AL(3), AL(3), AL(2), AL(3),
+ AL(3), AL(3), AL(4), AL(4), AL(4), AL(6),
+ AL(6), AL(2), AL(5), AL(5), AL(3), AL(3),
+ AL(4), AL(5), AL(4)
};
#undef AL
unsigned long a[6];
unsigned long a0, a1;
int err;
+ unsigned int len;
+
+ if (call < 1 || call > SYS_SENDMMSG)
+ return -EINVAL;
- if (call < 1 || call > SYS_ACCEPT4)
+ len = nargs[call];
+ if (len > sizeof(a))
return -EINVAL;
/* copy_from_user should be SMP safe. */
- if (copy_from_user(a, args, nargs[call]))
+ if (copy_from_user(a, args, len))
return -EFAULT;
audit_socketcall(nargs[call] / sizeof(unsigned long), a);
case SYS_SENDMSG:
err = sys_sendmsg(a0, (struct msghdr __user *)a1, a[2]);
break;
+ case SYS_SENDMMSG:
+ err = sys_sendmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3]);
+ break;
case SYS_RECVMSG:
err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]);
break;
+ case SYS_RECVMMSG:
+ err = sys_recvmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3],
+ (struct timespec __user *)a[4]);
+ break;
case SYS_ACCEPT4:
err = sys_accept4(a0, (struct sockaddr __user *)a1,
(int __user *)a[2], a[3]);
}
spin_lock(&net_family_lock);
- if (net_families[ops->family])
+ if (rcu_dereference_protected(net_families[ops->family],
+ lockdep_is_held(&net_family_lock)))
err = -EEXIST;
else {
- net_families[ops->family] = ops;
+ RCU_INIT_POINTER(net_families[ops->family], ops);
err = 0;
}
spin_unlock(&net_family_lock);
printk(KERN_INFO "NET: Registered protocol family %d\n", ops->family);
return err;
}
+EXPORT_SYMBOL(sock_register);
/**
* sock_unregister - remove a protocol handler
BUG_ON(family < 0 || family >= NPROTO);
spin_lock(&net_family_lock);
- net_families[family] = NULL;
+ RCU_INIT_POINTER(net_families[family], NULL);
spin_unlock(&net_family_lock);
synchronize_rcu();
printk(KERN_INFO "NET: Unregistered protocol family %d\n", family);
}
+EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
+ int err;
+
/*
* Initialize sock SLAB cache.
*/
*/
init_inodecache();
- register_filesystem(&sock_fs_type);
+
+ err = register_filesystem(&sock_fs_type);
+ if (err)
+ goto out_fs;
sock_mnt = kern_mount(&sock_fs_type);
+ if (IS_ERR(sock_mnt)) {
+ err = PTR_ERR(sock_mnt);
+ goto out_mount;
+ }
/* The real protocol initialization is performed in later initcalls.
*/
netfilter_init();
#endif
- return 0;
+#ifdef CONFIG_NETWORK_PHY_TIMESTAMPING
+ skb_timestamping_init();
+#endif
+
+out:
+ return err;
+
+out_mount:
+ unregister_filesystem(&sock_fs_type);
+out_fs:
+ goto out;
}
core_initcall(sock_init); /* early initcall */
#endif /* CONFIG_PROC_FS */
#ifdef CONFIG_COMPAT
+static int do_siocgstamp(struct net *net, struct socket *sock,
+ unsigned int cmd, struct compat_timeval __user *up)
+{
+ mm_segment_t old_fs = get_fs();
+ struct timeval ktv;
+ int err;
+
+ set_fs(KERNEL_DS);
+ err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv);
+ set_fs(old_fs);
+ if (!err) {
+ err = put_user(ktv.tv_sec, &up->tv_sec);
+ err |= __put_user(ktv.tv_usec, &up->tv_usec);
+ }
+ return err;
+}
+
+static int do_siocgstampns(struct net *net, struct socket *sock,
+ unsigned int cmd, struct compat_timespec __user *up)
+{
+ mm_segment_t old_fs = get_fs();
+ struct timespec kts;
+ int err;
+
+ set_fs(KERNEL_DS);
+ err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts);
+ set_fs(old_fs);
+ if (!err) {
+ err = put_user(kts.tv_sec, &up->tv_sec);
+ err |= __put_user(kts.tv_nsec, &up->tv_nsec);
+ }
+ return err;
+}
+
+static int dev_ifname32(struct net *net, struct compat_ifreq __user *uifr32)
+{
+ struct ifreq __user *uifr;
+ int err;
+
+ uifr = compat_alloc_user_space(sizeof(struct ifreq));
+ if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
+ return -EFAULT;
+
+ err = dev_ioctl(net, SIOCGIFNAME, uifr);
+ if (err)
+ return err;
+
+ if (copy_in_user(uifr32, uifr, sizeof(struct compat_ifreq)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32)
+{
+ struct compat_ifconf ifc32;
+ struct ifconf ifc;
+ struct ifconf __user *uifc;
+ struct compat_ifreq __user *ifr32;
+ struct ifreq __user *ifr;
+ unsigned int i, j;
+ int err;
+
+ if (copy_from_user(&ifc32, uifc32, sizeof(struct compat_ifconf)))
+ return -EFAULT;
+
+ if (ifc32.ifcbuf == 0) {
+ ifc32.ifc_len = 0;
+ ifc.ifc_len = 0;
+ ifc.ifc_req = NULL;
+ uifc = compat_alloc_user_space(sizeof(struct ifconf));
+ } else {
+ size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) *
+ sizeof(struct ifreq);
+ uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
+ ifc.ifc_len = len;
+ ifr = ifc.ifc_req = (void __user *)(uifc + 1);
+ ifr32 = compat_ptr(ifc32.ifcbuf);
+ for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) {
+ if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq)))
+ return -EFAULT;
+ ifr++;
+ ifr32++;
+ }
+ }
+ if (copy_to_user(uifc, &ifc, sizeof(struct ifconf)))
+ return -EFAULT;
+
+ err = dev_ioctl(net, SIOCGIFCONF, uifc);
+ if (err)
+ return err;
+
+ if (copy_from_user(&ifc, uifc, sizeof(struct ifconf)))
+ return -EFAULT;
+
+ ifr = ifc.ifc_req;
+ ifr32 = compat_ptr(ifc32.ifcbuf);
+ for (i = 0, j = 0;
+ i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len;
+ i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) {
+ if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq)))
+ return -EFAULT;
+ ifr32++;
+ ifr++;
+ }
+
+ if (ifc32.ifcbuf == 0) {
+ /* Translate from 64-bit structure multiple to
+ * a 32-bit one.
+ */
+ i = ifc.ifc_len;
+ i = ((i / sizeof(struct ifreq)) * sizeof(struct compat_ifreq));
+ ifc32.ifc_len = i;
+ } else {
+ ifc32.ifc_len = i;
+ }
+ if (copy_to_user(uifc32, &ifc32, sizeof(struct compat_ifconf)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
+{
+ struct compat_ethtool_rxnfc __user *compat_rxnfc;
+ bool convert_in = false, convert_out = false;
+ size_t buf_size = ALIGN(sizeof(struct ifreq), 8);
+ struct ethtool_rxnfc __user *rxnfc;
+ struct ifreq __user *ifr;
+ u32 rule_cnt = 0, actual_rule_cnt;
+ u32 ethcmd;
+ u32 data;
+ int ret;
+
+ if (get_user(data, &ifr32->ifr_ifru.ifru_data))
+ return -EFAULT;
+
+ compat_rxnfc = compat_ptr(data);
+
+ if (get_user(ethcmd, &compat_rxnfc->cmd))
+ return -EFAULT;
+
+ /* Most ethtool structures are defined without padding.
+ * Unfortunately struct ethtool_rxnfc is an exception.
+ */
+ switch (ethcmd) {
+ default:
+ break;
+ case ETHTOOL_GRXCLSRLALL:
+ /* Buffer size is variable */
+ if (get_user(rule_cnt, &compat_rxnfc->rule_cnt))
+ return -EFAULT;
+ if (rule_cnt > KMALLOC_MAX_SIZE / sizeof(u32))
+ return -ENOMEM;
+ buf_size += rule_cnt * sizeof(u32);
+ /* fall through */
+ case ETHTOOL_GRXRINGS:
+ case ETHTOOL_GRXCLSRLCNT:
+ case ETHTOOL_GRXCLSRULE:
+ convert_out = true;
+ /* fall through */
+ case ETHTOOL_SRXCLSRLDEL:
+ case ETHTOOL_SRXCLSRLINS:
+ buf_size += sizeof(struct ethtool_rxnfc);
+ convert_in = true;
+ break;
+ }
+
+ ifr = compat_alloc_user_space(buf_size);
+ rxnfc = (void *)ifr + ALIGN(sizeof(struct ifreq), 8);
+
+ if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
+ return -EFAULT;
+
+ if (put_user(convert_in ? rxnfc : compat_ptr(data),
+ &ifr->ifr_ifru.ifru_data))
+ return -EFAULT;
+
+ if (convert_in) {
+ /* We expect there to be holes between fs.m_ext and
+ * fs.ring_cookie and at the end of fs, but nowhere else.
+ */
+ BUILD_BUG_ON(offsetof(struct compat_ethtool_rxnfc, fs.m_ext) +
+ sizeof(compat_rxnfc->fs.m_ext) !=
+ offsetof(struct ethtool_rxnfc, fs.m_ext) +
+ sizeof(rxnfc->fs.m_ext));
+ BUILD_BUG_ON(
+ offsetof(struct compat_ethtool_rxnfc, fs.location) -
+ offsetof(struct compat_ethtool_rxnfc, fs.ring_cookie) !=
+ offsetof(struct ethtool_rxnfc, fs.location) -
+ offsetof(struct ethtool_rxnfc, fs.ring_cookie));
+
+ if (copy_in_user(rxnfc, compat_rxnfc,
+ (void *)(&rxnfc->fs.m_ext + 1) -
+ (void *)rxnfc) ||
+ copy_in_user(&rxnfc->fs.ring_cookie,
+ &compat_rxnfc->fs.ring_cookie,
+ (void *)(&rxnfc->fs.location + 1) -
+ (void *)&rxnfc->fs.ring_cookie) ||
+ copy_in_user(&rxnfc->rule_cnt, &compat_rxnfc->rule_cnt,
+ sizeof(rxnfc->rule_cnt)))
+ return -EFAULT;
+ }
+
+ ret = dev_ioctl(net, SIOCETHTOOL, ifr);
+ if (ret)
+ return ret;
+
+ if (convert_out) {
+ if (copy_in_user(compat_rxnfc, rxnfc,
+ (const void *)(&rxnfc->fs.m_ext + 1) -
+ (const void *)rxnfc) ||
+ copy_in_user(&compat_rxnfc->fs.ring_cookie,
+ &rxnfc->fs.ring_cookie,
+ (const void *)(&rxnfc->fs.location + 1) -
+ (const void *)&rxnfc->fs.ring_cookie) ||
+ copy_in_user(&compat_rxnfc->rule_cnt, &rxnfc->rule_cnt,
+ sizeof(rxnfc->rule_cnt)))
+ return -EFAULT;
+
+ if (ethcmd == ETHTOOL_GRXCLSRLALL) {
+ /* As an optimisation, we only copy the actual
+ * number of rules that the underlying
+ * function returned. Since Mallory might
+ * change the rule count in user memory, we
+ * check that it is less than the rule count
+ * originally given (as the user buffer size),
+ * which has been range-checked.
+ */
+ if (get_user(actual_rule_cnt, &rxnfc->rule_cnt))
+ return -EFAULT;
+ if (actual_rule_cnt < rule_cnt)
+ rule_cnt = actual_rule_cnt;
+ if (copy_in_user(&compat_rxnfc->rule_locs[0],
+ &rxnfc->rule_locs[0],
+ rule_cnt * sizeof(u32)))
+ return -EFAULT;
+ }
+ }
+
+ return 0;
+}
+
+static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32)
+{
+ void __user *uptr;
+ compat_uptr_t uptr32;
+ struct ifreq __user *uifr;
+
+ uifr = compat_alloc_user_space(sizeof(*uifr));
+ if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
+ return -EFAULT;
+
+ if (get_user(uptr32, &uifr32->ifr_settings.ifs_ifsu))
+ return -EFAULT;
+
+ uptr = compat_ptr(uptr32);
+
+ if (put_user(uptr, &uifr->ifr_settings.ifs_ifsu.raw_hdlc))
+ return -EFAULT;
+
+ return dev_ioctl(net, SIOCWANDEV, uifr);
+}
+
+static int bond_ioctl(struct net *net, unsigned int cmd,
+ struct compat_ifreq __user *ifr32)
+{
+ struct ifreq kifr;
+ struct ifreq __user *uifr;
+ mm_segment_t old_fs;
+ int err;
+ u32 data;
+ void __user *datap;
+
+ switch (cmd) {
+ case SIOCBONDENSLAVE:
+ case SIOCBONDRELEASE:
+ case SIOCBONDSETHWADDR:
+ case SIOCBONDCHANGEACTIVE:
+ if (copy_from_user(&kifr, ifr32, sizeof(struct compat_ifreq)))
+ return -EFAULT;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = dev_ioctl(net, cmd,
+ (struct ifreq __user __force *) &kifr);
+ set_fs(old_fs);
+
+ return err;
+ case SIOCBONDSLAVEINFOQUERY:
+ case SIOCBONDINFOQUERY:
+ uifr = compat_alloc_user_space(sizeof(*uifr));
+ if (copy_in_user(&uifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
+ return -EFAULT;
+
+ if (get_user(data, &ifr32->ifr_ifru.ifru_data))
+ return -EFAULT;
+
+ datap = compat_ptr(data);
+ if (put_user(datap, &uifr->ifr_ifru.ifru_data))
+ return -EFAULT;
+
+ return dev_ioctl(net, cmd, uifr);
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+static int siocdevprivate_ioctl(struct net *net, unsigned int cmd,
+ struct compat_ifreq __user *u_ifreq32)
+{
+ struct ifreq __user *u_ifreq64;
+ char tmp_buf[IFNAMSIZ];
+ void __user *data64;
+ u32 data32;
+
+ if (copy_from_user(&tmp_buf[0], &(u_ifreq32->ifr_ifrn.ifrn_name[0]),
+ IFNAMSIZ))
+ return -EFAULT;
+ if (__get_user(data32, &u_ifreq32->ifr_ifru.ifru_data))
+ return -EFAULT;
+ data64 = compat_ptr(data32);
+
+ u_ifreq64 = compat_alloc_user_space(sizeof(*u_ifreq64));
+
+ /* Don't check these user accesses, just let that get trapped
+ * in the ioctl handler instead.
+ */
+ if (copy_to_user(&u_ifreq64->ifr_ifrn.ifrn_name[0], &tmp_buf[0],
+ IFNAMSIZ))
+ return -EFAULT;
+ if (__put_user(data64, &u_ifreq64->ifr_ifru.ifru_data))
+ return -EFAULT;
+
+ return dev_ioctl(net, cmd, u_ifreq64);
+}
+
+static int dev_ifsioc(struct net *net, struct socket *sock,
+ unsigned int cmd, struct compat_ifreq __user *uifr32)
+{
+ struct ifreq __user *uifr;
+ int err;
+
+ uifr = compat_alloc_user_space(sizeof(*uifr));
+ if (copy_in_user(uifr, uifr32, sizeof(*uifr32)))
+ return -EFAULT;
+
+ err = sock_do_ioctl(net, sock, cmd, (unsigned long)uifr);
+
+ if (!err) {
+ switch (cmd) {
+ case SIOCGIFFLAGS:
+ case SIOCGIFMETRIC:
+ case SIOCGIFMTU:
+ case SIOCGIFMEM:
+ case SIOCGIFHWADDR:
+ case SIOCGIFINDEX:
+ case SIOCGIFADDR:
+ case SIOCGIFBRDADDR:
+ case SIOCGIFDSTADDR:
+ case SIOCGIFNETMASK:
+ case SIOCGIFPFLAGS:
+ case SIOCGIFTXQLEN:
+ case SIOCGMIIPHY:
+ case SIOCGMIIREG:
+ if (copy_in_user(uifr32, uifr, sizeof(*uifr32)))
+ err = -EFAULT;
+ break;
+ }
+ }
+ return err;
+}
+
+static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
+ struct compat_ifreq __user *uifr32)
+{
+ struct ifreq ifr;
+ struct compat_ifmap __user *uifmap32;
+ mm_segment_t old_fs;
+ int err;
+
+ uifmap32 = &uifr32->ifr_ifru.ifru_map;
+ err = copy_from_user(&ifr, uifr32, sizeof(ifr.ifr_name));
+ err |= __get_user(ifr.ifr_map.mem_start, &uifmap32->mem_start);
+ err |= __get_user(ifr.ifr_map.mem_end, &uifmap32->mem_end);
+ err |= __get_user(ifr.ifr_map.base_addr, &uifmap32->base_addr);
+ err |= __get_user(ifr.ifr_map.irq, &uifmap32->irq);
+ err |= __get_user(ifr.ifr_map.dma, &uifmap32->dma);
+ err |= __get_user(ifr.ifr_map.port, &uifmap32->port);
+ if (err)
+ return -EFAULT;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = dev_ioctl(net, cmd, (void __user __force *)&ifr);
+ set_fs(old_fs);
+
+ if (cmd == SIOCGIFMAP && !err) {
+ err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
+ err |= __put_user(ifr.ifr_map.mem_start, &uifmap32->mem_start);
+ err |= __put_user(ifr.ifr_map.mem_end, &uifmap32->mem_end);
+ err |= __put_user(ifr.ifr_map.base_addr, &uifmap32->base_addr);
+ err |= __put_user(ifr.ifr_map.irq, &uifmap32->irq);
+ err |= __put_user(ifr.ifr_map.dma, &uifmap32->dma);
+ err |= __put_user(ifr.ifr_map.port, &uifmap32->port);
+ if (err)
+ err = -EFAULT;
+ }
+ return err;
+}
+
+static int compat_siocshwtstamp(struct net *net, struct compat_ifreq __user *uifr32)
+{
+ void __user *uptr;
+ compat_uptr_t uptr32;
+ struct ifreq __user *uifr;
+
+ uifr = compat_alloc_user_space(sizeof(*uifr));
+ if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq)))
+ return -EFAULT;
+
+ if (get_user(uptr32, &uifr32->ifr_data))
+ return -EFAULT;
+
+ uptr = compat_ptr(uptr32);
+
+ if (put_user(uptr, &uifr->ifr_data))
+ return -EFAULT;
+
+ return dev_ioctl(net, SIOCSHWTSTAMP, uifr);
+}
+
+struct rtentry32 {
+ u32 rt_pad1;
+ struct sockaddr rt_dst; /* target address */
+ struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
+ struct sockaddr rt_genmask; /* target network mask (IP) */
+ unsigned short rt_flags;
+ short rt_pad2;
+ u32 rt_pad3;
+ unsigned char rt_tos;
+ unsigned char rt_class;
+ short rt_pad4;
+ short rt_metric; /* +1 for binary compatibility! */
+ /* char * */ u32 rt_dev; /* forcing the device at add */
+ u32 rt_mtu; /* per route MTU/Window */
+ u32 rt_window; /* Window clamping */
+ unsigned short rt_irtt; /* Initial RTT */
+};
+
+struct in6_rtmsg32 {
+ struct in6_addr rtmsg_dst;
+ struct in6_addr rtmsg_src;
+ struct in6_addr rtmsg_gateway;
+ u32 rtmsg_type;
+ u16 rtmsg_dst_len;
+ u16 rtmsg_src_len;
+ u32 rtmsg_metric;
+ u32 rtmsg_info;
+ u32 rtmsg_flags;
+ s32 rtmsg_ifindex;
+};
+
+static int routing_ioctl(struct net *net, struct socket *sock,
+ unsigned int cmd, void __user *argp)
+{
+ int ret;
+ void *r = NULL;
+ struct in6_rtmsg r6;
+ struct rtentry r4;
+ char devname[16];
+ u32 rtdev;
+ mm_segment_t old_fs = get_fs();
+
+ if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */
+ struct in6_rtmsg32 __user *ur6 = argp;
+ ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst),
+ 3 * sizeof(struct in6_addr));
+ ret |= __get_user(r6.rtmsg_type, &(ur6->rtmsg_type));
+ ret |= __get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
+ ret |= __get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
+ ret |= __get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric));
+ ret |= __get_user(r6.rtmsg_info, &(ur6->rtmsg_info));
+ ret |= __get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags));
+ ret |= __get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
+
+ r = (void *) &r6;
+ } else { /* ipv4 */
+ struct rtentry32 __user *ur4 = argp;
+ ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst),
+ 3 * sizeof(struct sockaddr));
+ ret |= __get_user(r4.rt_flags, &(ur4->rt_flags));
+ ret |= __get_user(r4.rt_metric, &(ur4->rt_metric));
+ ret |= __get_user(r4.rt_mtu, &(ur4->rt_mtu));
+ ret |= __get_user(r4.rt_window, &(ur4->rt_window));
+ ret |= __get_user(r4.rt_irtt, &(ur4->rt_irtt));
+ ret |= __get_user(rtdev, &(ur4->rt_dev));
+ if (rtdev) {
+ ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
+ r4.rt_dev = (char __user __force *)devname;
+ devname[15] = 0;
+ } else
+ r4.rt_dev = NULL;
+
+ r = (void *) &r4;
+ }
+
+ if (ret) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ set_fs(KERNEL_DS);
+ ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r);
+ set_fs(old_fs);
+
+out:
+ return ret;
+}
+
+/* Since old style bridge ioctl's endup using SIOCDEVPRIVATE
+ * for some operations; this forces use of the newer bridge-utils that
+ * use compatible ioctls
+ */
+static int old_bridge_ioctl(compat_ulong_t __user *argp)
+{
+ compat_ulong_t tmp;
+
+ if (get_user(tmp, argp))
+ return -EFAULT;
+ if (tmp == BRCTL_GET_VERSION)
+ return BRCTL_VERSION + 1;
+ return -EINVAL;
+}
+
+static int compat_sock_ioctl_trans(struct file *file, struct socket *sock,
+ unsigned int cmd, unsigned long arg)
+{
+ void __user *argp = compat_ptr(arg);
+ struct sock *sk = sock->sk;
+ struct net *net = sock_net(sk);
+
+ if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15))
+ return siocdevprivate_ioctl(net, cmd, argp);
+
+ switch (cmd) {
+ case SIOCSIFBR:
+ case SIOCGIFBR:
+ return old_bridge_ioctl(argp);
+ case SIOCGIFNAME:
+ return dev_ifname32(net, argp);
+ case SIOCGIFCONF:
+ return dev_ifconf(net, argp);
+ case SIOCETHTOOL:
+ return ethtool_ioctl(net, argp);
+ case SIOCWANDEV:
+ return compat_siocwandev(net, argp);
+ case SIOCGIFMAP:
+ case SIOCSIFMAP:
+ return compat_sioc_ifmap(net, cmd, argp);
+ case SIOCBONDENSLAVE:
+ case SIOCBONDRELEASE:
+ case SIOCBONDSETHWADDR:
+ case SIOCBONDSLAVEINFOQUERY:
+ case SIOCBONDINFOQUERY:
+ case SIOCBONDCHANGEACTIVE:
+ return bond_ioctl(net, cmd, argp);
+ case SIOCADDRT:
+ case SIOCDELRT:
+ return routing_ioctl(net, sock, cmd, argp);
+ case SIOCGSTAMP:
+ return do_siocgstamp(net, sock, cmd, argp);
+ case SIOCGSTAMPNS:
+ return do_siocgstampns(net, sock, cmd, argp);
+ case SIOCSHWTSTAMP:
+ return compat_siocshwtstamp(net, argp);
+
+ case FIOSETOWN:
+ case SIOCSPGRP:
+ case FIOGETOWN:
+ case SIOCGPGRP:
+ case SIOCBRADDBR:
+ case SIOCBRDELBR:
+ case SIOCGIFVLAN:
+ case SIOCSIFVLAN:
+ case SIOCADDDLCI:
+ case SIOCDELDLCI:
+ return sock_ioctl(file, cmd, arg);
+
+ case SIOCGIFFLAGS:
+ case SIOCSIFFLAGS:
+ case SIOCGIFMETRIC:
+ case SIOCSIFMETRIC:
+ case SIOCGIFMTU:
+ case SIOCSIFMTU:
+ case SIOCGIFMEM:
+ case SIOCSIFMEM:
+ case SIOCGIFHWADDR:
+ case SIOCSIFHWADDR:
+ case SIOCADDMULTI:
+ case SIOCDELMULTI:
+ case SIOCGIFINDEX:
+ case SIOCGIFADDR:
+ case SIOCSIFADDR:
+ case SIOCSIFHWBROADCAST:
+ case SIOCDIFADDR:
+ case SIOCGIFBRDADDR:
+ case SIOCSIFBRDADDR:
+ case SIOCGIFDSTADDR:
+ case SIOCSIFDSTADDR:
+ case SIOCGIFNETMASK:
+ case SIOCSIFNETMASK:
+ case SIOCSIFPFLAGS:
+ case SIOCGIFPFLAGS:
+ case SIOCGIFTXQLEN:
+ case SIOCSIFTXQLEN:
+ case SIOCBRADDIF:
+ case SIOCBRDELIF:
+ case SIOCSIFNAME:
+ case SIOCGMIIPHY:
+ case SIOCGMIIREG:
+ case SIOCSMIIREG:
+ return dev_ifsioc(net, sock, cmd, argp);
+
+ case SIOCSARP:
+ case SIOCGARP:
+ case SIOCDARP:
+ case SIOCATMARK:
+ return sock_do_ioctl(net, sock, cmd, arg);
+ }
+
+ return -ENOIOCTLCMD;
+}
+
static long compat_sock_ioctl(struct file *file, unsigned cmd,
unsigned long arg)
{
(cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST))
ret = compat_wext_handle_ioctl(net, cmd, arg);
+ if (ret == -ENOIOCTLCMD)
+ ret = compat_sock_ioctl_trans(file, sock, cmd, arg);
+
return ret;
}
#endif
{
return sock->ops->bind(sock, addr, addrlen);
}
+EXPORT_SYMBOL(kernel_bind);
int kernel_listen(struct socket *sock, int backlog)
{
return sock->ops->listen(sock, backlog);
}
+EXPORT_SYMBOL(kernel_listen);
int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
{
done:
return err;
}
+EXPORT_SYMBOL(kernel_accept);
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
int flags)
{
return sock->ops->connect(sock, addr, addrlen, flags);
}
+EXPORT_SYMBOL(kernel_connect);
int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 0);
}
+EXPORT_SYMBOL(kernel_getsockname);
int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
int *addrlen)
{
return sock->ops->getname(sock, addr, addrlen, 1);
}
+EXPORT_SYMBOL(kernel_getpeername);
int kernel_getsockopt(struct socket *sock, int level, int optname,
char *optval, int *optlen)
{
mm_segment_t oldfs = get_fs();
+ char __user *uoptval;
+ int __user *uoptlen;
int err;
+ uoptval = (char __user __force *) optval;
+ uoptlen = (int __user __force *) optlen;
+
set_fs(KERNEL_DS);
if (level == SOL_SOCKET)
- err = sock_getsockopt(sock, level, optname, optval, optlen);
+ err = sock_getsockopt(sock, level, optname, uoptval, uoptlen);
else
- err = sock->ops->getsockopt(sock, level, optname, optval,
- optlen);
+ err = sock->ops->getsockopt(sock, level, optname, uoptval,
+ uoptlen);
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_getsockopt);
int kernel_setsockopt(struct socket *sock, int level, int optname,
- char *optval, int optlen)
+ char *optval, unsigned int optlen)
{
mm_segment_t oldfs = get_fs();
+ char __user *uoptval;
int err;
+ uoptval = (char __user __force *) optval;
+
set_fs(KERNEL_DS);
if (level == SOL_SOCKET)
- err = sock_setsockopt(sock, level, optname, optval, optlen);
+ err = sock_setsockopt(sock, level, optname, uoptval, optlen);
else
- err = sock->ops->setsockopt(sock, level, optname, optval,
+ err = sock->ops->setsockopt(sock, level, optname, uoptval,
optlen);
set_fs(oldfs);
return err;
}
+EXPORT_SYMBOL(kernel_setsockopt);
int kernel_sendpage(struct socket *sock, struct page *page, int offset,
size_t size, int flags)
{
+ sock_update_classid(sock->sk);
+
if (sock->ops->sendpage)
return sock->ops->sendpage(sock, page, offset, size, flags);
return sock_no_sendpage(sock, page, offset, size, flags);
}
+EXPORT_SYMBOL(kernel_sendpage);
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg)
{
return err;
}
+EXPORT_SYMBOL(kernel_sock_ioctl);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
{
return sock->ops->shutdown(sock, how);
}
-
-EXPORT_SYMBOL(sock_create);
-EXPORT_SYMBOL(sock_create_kern);
-EXPORT_SYMBOL(sock_create_lite);
-EXPORT_SYMBOL(sock_map_fd);
-EXPORT_SYMBOL(sock_recvmsg);
-EXPORT_SYMBOL(sock_register);
-EXPORT_SYMBOL(sock_release);
-EXPORT_SYMBOL(sock_sendmsg);
-EXPORT_SYMBOL(sock_unregister);
-EXPORT_SYMBOL(sock_wake_async);
-EXPORT_SYMBOL(sockfd_lookup);
-EXPORT_SYMBOL(kernel_sendmsg);
-EXPORT_SYMBOL(kernel_recvmsg);
-EXPORT_SYMBOL(kernel_bind);
-EXPORT_SYMBOL(kernel_listen);
-EXPORT_SYMBOL(kernel_accept);
-EXPORT_SYMBOL(kernel_connect);
-EXPORT_SYMBOL(kernel_getsockname);
-EXPORT_SYMBOL(kernel_getpeername);
-EXPORT_SYMBOL(kernel_getsockopt);
-EXPORT_SYMBOL(kernel_setsockopt);
-EXPORT_SYMBOL(kernel_sendpage);
-EXPORT_SYMBOL(kernel_sock_ioctl);
EXPORT_SYMBOL(kernel_sock_shutdown);
Code Review / linux-2.6.git / blobdiff