Author: tuexen
Date: Wed May 25 15:54:21 2016
New Revision: 300687
URL: https://svnweb.freebsd.org/changeset/base/300687
Log:
Send an ICMP packet indicating destination unreachable/protocol
unreachable if we don't handle the packet in the kernel and not
in userspace.
MFC after: 1 week
Modified:
head/sys/netinet/raw_ip.c
Modified: head/sys/netinet/raw_ip.c
==============================================================================
--- head/sys/netinet/raw_ip.c Wed May 25 15:49:29 2016 (r300686)
+++ head/sys/netinet/raw_ip.c Wed May 25 15:54:21 2016 (r300687)
@@ -71,6 +71,7 @@ __FBSDID("$FreeBSD$");
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/ip_mroute.h>
+#include <netinet/ip_icmp.h>
#ifdef IPSEC
#include <netipsec/ipsec.h>
@@ -416,8 +417,10 @@ rip_input(struct mbuf **mp, int *offp, i
if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) {
IPSTAT_INC(ips_noproto);
IPSTAT_DEC(ips_delivered);
+ icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, 0,
0);
+ } else {
+ m_freem(m);
}
- m_freem(m);
}
return (IPPROTO_DONE);
}
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