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gtp: let userspace handle packets for invalid tunnels 

enable userspace to send error replies for invalid tunnels

Acked-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: Andreas Schultz <aschultz@tpip.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andreas Schultz 2017-01-26 16:21:49 +01:00 committed by David S. Miller
parent 10931923b5
commit 1796a81de4
1 changed files with 4 additions and 4 deletions
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8
drivers/net/gtp.c
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@ -198,12 +198,12 @@ static int gtp0_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb,
pctx = gtp0_pdp_find(gtp, be64_to_cpu(gtp0->tid));
if (!pctx) {
netdev_dbg(gtp->dev, "No PDP ctx to decap skb=%p\n", skb);
return -1;
return 1;
}
if (!gtp_check_src_ms(skb, pctx, hdrlen)) {
netdev_dbg(gtp->dev, "No PDP ctx for this MS\n");
return -1;
return 1;
}
/* Get rid of the GTP + UDP headers. */
@ -247,12 +247,12 @@ static int gtp1u_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb,
pctx = gtp1_pdp_find(gtp, ntohl(gtp1->tid));
if (!pctx) {
netdev_dbg(gtp->dev, "No PDP ctx to decap skb=%p\n", skb);
return -1;
return 1;
}
if (!gtp_check_src_ms(skb, pctx, hdrlen)) {
netdev_dbg(gtp->dev, "No PDP ctx for this MS\n");
return -1;
return 1;
}
/* Get rid of the GTP + UDP headers. */