From: Andreas Schultz aschultz@tpip.net
[ Upstream commit c6ce1d08eede4c2968ed08aafa3165e8e183c5a1 ]
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: Andreas Schultz aschultz@tpip.net Acked-by: Harald Welte laforge@netfilter.org Acked-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@verizon.com --- drivers/net/gtp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c index cebde074d196..5b67f8a8b79a 100644 --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -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.iph->tos, ip4_dst_hoplimit(&pktinfo.rt->dst), - htons(IP_DF), + 0, pktinfo.gtph_port, pktinfo.gtph_port, true, false); break;