selinux: pull address family directly from the request_sock struct
We don't need to inspect the packet to determine if the packet is an
IPv4 packet arriving on an IPv6 socket when we can query the
request_sock directly.
Signed-off-by: Paul Moore <pmoore@redhat.com>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index cc076a9..17d7689 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4476,14 +4476,10 @@
{
struct sk_security_struct *sksec = sk->sk_security;
int err;
- u16 family = sk->sk_family;
+ u16 family = req->rsk_ops->family;
u32 connsid;
u32 peersid;
- /* handle mapped IPv4 packets arriving via IPv6 sockets */
- if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP))
- family = PF_INET;
-
err = selinux_skb_peerlbl_sid(skb, family, &peersid);
if (err)
return err;