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: Andreas Roeseler <andreas.a.roeseler@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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
*
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"