mirror/openwrt
1
0
Fork 0
mirror of https://git.openwrt.org/openwrt/openwrt.git synced 2024-09-30 16:11:18 +02:00
Code Issues

fix a kernel bug where IPv6 packets are received on IPv4 sockets, this fixes dual stack software like OLSRd when running on Kernel 2.4 Signed-off-by: Alina Friedrichsen <x-alina@gmx.net>

Browse Source 
SVN-Revision: 21461
This commit is contained in:
Jo-Philipp Wich 2010-05-15 22:36:56 +00:00
parent 52f1e9e50f
commit f155da0922
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
target/linux/brcm-2.4/patches/200-fix_ipv6_receiving_with_ipv4_socket.patch Normal file
View File

@ -0,0 +1,18 @@
--- a/net/ipv4/udp.c 2009-12-26 00:06:59.000000000 +0100
+++ b/net/ipv4/udp.c 2009-12-27 00:27:05.003012266 +0100
@@ -711,7 +711,14 @@
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb)
goto out;
-
+
+ if (skb->nh.iph->version != 4) {
+ skb_free_datagram(sk, skb);
+ if (noblock)
+ return -EAGAIN;
+ goto try_again;
+ }
+
copied = skb->len - sizeof(struct udphdr);
if (copied > len) {
copied = len;