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gtp: use icmp_ndo_send helper

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commit e0fce6f945a26d4e953a147fe7ca11410322c9fe upstream.

Because gtp is calling icmp from network device context, it should use
the ndo helper so that the rate limiting applies correctly.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Harald Welte <laforge@gnumonks.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jason A. Donenfeld 2020-02-11 20:47:06 +01:00 • committed by Greg Kroah-Hartman
commit d8d268ce1a
1 changed files with 2 additions and 2 deletions
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4
drivers/net/gtp.c
View file

@ -546,8 +546,8 @@ static int gtp_build_skb_ip4(struct sk_buff *skb, struct net_device *dev,
mtu < ntohs(iph->tot_len)) {
netdev_dbg(dev, "packet too big, fragmentation needed\n");
memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));
icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
htonl(mtu));
goto err_rt;
}