[UDPv6]: Enforce mandatory checksums as per RFC 2460
The current behaviour of computing outgoing checksums is not
compliant with RFC 2460, as per section 8.1:
"Unlike IPv4, when UDP packets are originated by an IPv6 node,
the UDP checksum is not optional. That is, whenever
originating a UDP packet, an IPv6 node must compute a UDP
checksum over the packet and the pseudo-header, [...]"
This modification hence enforces to ignore sk_no_check on UDPv6.
Signed-off-by: Gerrit Renker <[email protected]>
--
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 8d3432a..5122c4d 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -567,11 +567,6 @@ static int udp_v6_push_pending_frames(st
uh->len = htons(up->len);
uh->check = 0;
- if (sk->sk_no_check == UDP_CSUM_NOXMIT) {
- skb->ip_summed = CHECKSUM_NONE;
- goto send;
- }
-
if (skb_queue_len(&sk->sk_write_queue) == 1) {
skb->csum = csum_partial((char *)uh,
sizeof(struct udphdr), skb->csum);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
