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authorChristoph Hellwig <hch@lst.de>2020-05-18 09:28:06 +0300
committerDavid S. Miller <davem@davemloft.net>2020-05-19 03:35:02 +0300
commit3986912f6a9aae50945fc9d3513c621381eba1aa (patch)
tree059ca3049ba14c984fec240879f55397ad34ed79 /net/socket.c
parent7c1552da900c159a13473a2106c7547746ebe4a1 (diff)
downloadlinux-3986912f6a9aae50945fc9d3513c621381eba1aa.tar.xz
ipv6: move SIOCADDRT and SIOCDELRT handling into ->compat_ioctl
To prepare removing the global routing_ioctl hack start lifting the code into a newly added ipv6 ->compat_ioctl handler. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c63
1 files changed, 17 insertions, 46 deletions
diff --git a/net/socket.c b/net/socket.c
index 1c9a7260a41d..682447075775 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -3384,62 +3384,33 @@ struct rtentry32 {
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)
{
+ struct rtentry32 __user *ur4 = 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;
- }
+ 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;