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-rw-r--r--net/ipv4/raw.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index ff0f071..73d1e4d 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -131,18 +131,20 @@ found:
* 0 - deliver
* 1 - block
*/
-static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
+static int icmp_filter(const struct sock *sk, const struct sk_buff *skb)
{
- int type;
+ struct icmphdr _hdr;
+ const struct icmphdr *hdr;
- if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
+ hdr = skb_header_pointer(skb, skb_transport_offset(skb),
+ sizeof(_hdr), &_hdr);
+ if (!hdr)
return 1;
- type = icmp_hdr(skb)->type;
- if (type < 32) {
+ if (hdr->type < 32) {
__u32 data = raw_sk(sk)->filter.data;
- return ((1 << type) & data) != 0;
+ return ((1U << hdr->type) & data) != 0;
}
/* Do not block unknown ICMP types */
@@ -992,7 +994,9 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
i, src, srcp, dest, destp, sp->sk_state,
sk_wmem_alloc_get(sp),
sk_rmem_alloc_get(sp),
- 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
+ 0, 0L, 0,
+ from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
+ 0, sock_i_ino(sp),
atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
}
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