Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-26 06:02:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'gtp-tunnel-driver-fixes'

Browse Source 
Pablo Neira Ayuso says:

====================
GTP tunnel driver fixes

The following patchset contains two fixes for the GTP tunnel driver:

1) Incorrect GTPA_MAX definition in UAPI headers. This is updating an
   existing UAPI definition but for a good reason, this is certainly
   broken. Similar fixes for incorrect _MAX definition in netlink
   headers were applied in the past too.

2) Fix GTP driver PMTU with GRO packets, add missing call to
   skb_gso_validate_network_len() to handle GRO packets.
====================

Link: https://lore.kernel.org/r/20231022202519.659526-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Paolo Abeni 2023-10-24 12:02:03 +02:00
commit cd8892c078
2 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/gtp.c
View File

@ -872,8 +872,9 @@ static int gtp_build_skb_ip4(struct sk_buff *skb, struct net_device *dev,
skb_dst_update_pmtu_no_confirm(skb, mtu);
if (!skb_is_gso(skb) && (iph->frag_off & htons(IP_DF)) &&
mtu < ntohs(iph->tot_len)) {
if (iph->frag_off & htons(IP_DF) &&
((!skb_is_gso(skb) && skb->len > mtu) ||
(skb_is_gso(skb) && !skb_gso_validate_network_len(skb, mtu)))) {
netdev_dbg(dev, "packet too big, fragmentation needed\n");
icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));

2
include/uapi/linux/gtp.h
View File

@ -33,6 +33,6 @@ enum gtp_attrs {
GTPA_PAD,
__GTPA_MAX,
};
#define GTPA_MAX (__GTPA_MAX + 1)
#define GTPA_MAX (__GTPA_MAX - 1)
#endif /* _UAPI_LINUX_GTP_H_ */