Commit 31433202 authored by Andreas Roeseler's avatar Andreas Roeseler Committed by David S. Miller

icmp: ICMPV6: pass RFC 8335 reply messages to ping_rcv

The current icmp_rcv function drops all unknown ICMP types, including
ICMP_EXT_ECHOREPLY (type 43). In order to parse Extended Echo Reply messages, we have
to pass these packets to the ping_rcv function, which does not do any
other filtering and passes the packet to the designated socket.

Pass incoming RFC 8335 ICMP Extended Echo Reply packets to the ping_rcv
handler instead of discarding the packet.
Signed-off-by: default avatarAndreas Roeseler <andreas.a.roeseler@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent affb05d9
......@@ -1196,6 +1196,11 @@ int icmp_rcv(struct sk_buff *skb)
goto success_check;
}
if (icmph->type == ICMP_EXT_ECHOREPLY) {
success = ping_rcv(skb);
goto success_check;
}
/*
* 18 is the highest 'known' ICMP type. Anything else is a mystery
*
......
......@@ -916,6 +916,10 @@ static int icmpv6_rcv(struct sk_buff *skb)
success = ping_rcv(skb);
break;
case ICMPV6_EXT_ECHO_REPLY:
success = ping_rcv(skb);
break;
case ICMPV6_PKT_TOOBIG:
/* BUGGG_FUTURE: if packet contains rthdr, we cannot update
standard destination cache. Seems, only "advanced"
......
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