X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fsocket.c;h=02948b622bd2e938bfc6d02e44f2d13ae2b9f874;hb=c620953c32d301c2a7bc73f9f780301e110b7d7c;hp=e3c21d5ec2885aa4fea17eea23621580c07a6fb7;hpb=ca94f26d2b2ee8ad76be617b35f846444fedc07b;p=linux-2.6

diff --git a/net/socket.c b/net/socket.c
index e3c21d5ec2..02948b622b 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -107,6 +107,10 @@ static unsigned int sock_poll(struct file *file,
 			      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);
@@ -115,7 +119,6 @@ static ssize_t sock_writev(struct file *file, const struct iovec *vector,
 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.
@@ -128,13 +131,17 @@ static struct file_operations socket_file_ops = {
 	.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,
 };
 
 /*
@@ -260,6 +267,8 @@ int move_addr_to_user(void *kaddr, int klen, void __user *uaddr, int __user *ule
 		return -EINVAL;
 	if(len)
 	{
+		if (audit_sockaddr(klen, kaddr))
+			return -ENOMEM;
 		if(copy_to_user(uaddr,kaddr,len))
 			return -EFAULT;
 	}
@@ -312,7 +321,8 @@ static int init_inodecache(void)
 {
 	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;
@@ -482,6 +492,7 @@ static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
 	struct file *file;
 	struct socket *sock;
 
+	*err = -EBADF;
 	file = fget_light(fd, fput_needed);
 	if (file) {
 		sock = sock_from_file(file, err);
@@ -531,7 +542,7 @@ static int sock_no_open(struct inode *irrelevant, struct file *dontcare)
 	return -ENXIO;
 }
 
-struct file_operations bad_sock_fops = {
+const struct file_operations bad_sock_fops = {
 	.owner = THIS_MODULE,
 	.open = sock_no_open,
 };
@@ -1406,7 +1417,8 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, int _
 	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);
@@ -1443,10 +1455,8 @@ out_put:
 out:
 	return err;
 out_fd:
-	put_filp(newfile);
+	fput(newfile);
 	put_unused_fd(newfd);
-out_release:
-	sock_release(newsock);
 	goto out_put;
 }
 
@@ -2125,7 +2135,7 @@ void socket_seq_show(struct seq_file *seq)
 	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) */
@@ -2136,6 +2146,20 @@ void socket_seq_show(struct seq_file *seq)
 }
 #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);