net: diag: make udp_diag_destroy work for mapped addresses.

udp_diag_destroy does look up the IPv4 UDP hashtable for mapped
addresses, but it gets the IPv4 address to look up from the
beginning of the IPv6 address instead of the end.

[cherry-pick of net-next f95bf34622]

Change-Id: Ia369482c4645bcade320b2c33a763f1ce4378ff1
Tested: https://android-review.googlesource.com/269874
Fixes: 5d77dca828 ("net: diag: support SOCK_DESTROY for UDP sockets")
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lorenzo Colitti
2016-09-07 13:38:35 +09:00
parent 2f500d61a4
commit 513e28e198

View File

@@ -186,8 +186,8 @@ static int __udp_diag_destroy(struct sk_buff *in_skb,
if (ipv6_addr_v4mapped((struct in6_addr *)req->id.idiag_dst) &&
ipv6_addr_v4mapped((struct in6_addr *)req->id.idiag_src))
sk = __udp4_lib_lookup(net,
req->id.idiag_dst[0], req->id.idiag_dport,
req->id.idiag_src[0], req->id.idiag_sport,
req->id.idiag_dst[3], req->id.idiag_dport,
req->id.idiag_src[3], req->id.idiag_sport,
req->id.idiag_if, tbl);
else