Commit c6ce1d08 authored by Andreas Schultz's avatar Andreas Schultz Committed by David S. Miller

gtp: clear DF bit on GTP packet tx

3GPP TS 29.281 and 3GPP TS 29.060 imply that GTP-U packets should be
sent with the DF bit cleared. For example 3GPP TS 29.060, Release 8,
Section 13.2.2:

> Backbone router: Any router in the backbone may fragment the GTP
> packet if needed, according to IPv4.
Signed-off-by: default avatarAndreas Schultz <aschultz@tpip.net>
Acked-by: default avatarHarald Welte <laforge@netfilter.org>
Acked-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ab729823
...@@ -612,7 +612,7 @@ static netdev_tx_t gtp_dev_xmit(struct sk_buff *skb, struct net_device *dev) ...@@ -612,7 +612,7 @@ static netdev_tx_t gtp_dev_xmit(struct sk_buff *skb, struct net_device *dev)
pktinfo.fl4.saddr, pktinfo.fl4.daddr, pktinfo.fl4.saddr, pktinfo.fl4.daddr,
pktinfo.iph->tos, pktinfo.iph->tos,
ip4_dst_hoplimit(&pktinfo.rt->dst), ip4_dst_hoplimit(&pktinfo.rt->dst),
htons(IP_DF), 0,
pktinfo.gtph_port, pktinfo.gtph_port, pktinfo.gtph_port, pktinfo.gtph_port,
true, false); true, false);
break; break;
......
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