Module Name: src
Committed By: is
Date: Sat Jul 23 13:37:11 UTC 2016
Modified Files:
src/sys/netinet: ip_carp.c
Log Message:
Print the IPv6 or IPv4 source addresses of packets with wrong hash, to
help debugging.
To generate a diff of this commit:
cvs rdiff -u -r1.75 -r1.76 src/sys/netinet/ip_carp.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/netinet/ip_carp.c
diff -u src/sys/netinet/ip_carp.c:1.75 src/sys/netinet/ip_carp.c:1.76
--- src/sys/netinet/ip_carp.c:1.75 Sat Jul 23 12:19:07 2016
+++ src/sys/netinet/ip_carp.c Sat Jul 23 13:37:10 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: ip_carp.c,v 1.75 2016/07/23 12:19:07 is Exp $ */
+/* $NetBSD: ip_carp.c,v 1.76 2016/07/23 13:37:10 is Exp $ */
/* $OpenBSD: ip_carp.c,v 1.113 2005/11/04 08:11:54 mcbride Exp $ */
/*
@@ -33,7 +33,7 @@
#endif
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip_carp.c,v 1.75 2016/07/23 12:19:07 is Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip_carp.c,v 1.76 2016/07/23 13:37:10 is Exp $");
/*
* TODO:
@@ -94,6 +94,7 @@ __KERNEL_RCSID(0, "$NetBSD: ip_carp.c,v
#include <netinet6/ip6_var.h>
#include <netinet6/nd6.h>
#include <netinet6/scope6_var.h>
+#include <netinet6/in6_var.h>
#endif
#include <net/bpf.h>
@@ -682,9 +683,29 @@ carp_proto_input_c(struct mbuf *m, struc
/* verify the hash */
if (carp_hmac_verify(sc, ch->carp_counter, ch->carp_md)) {
+ struct ip *ip;
+ struct ip6_hdr *ip6;
+
CARP_STATINC(CARP_STAT_BADAUTH);
sc->sc_if.if_ierrors++;
- CARP_LOG(sc, ("incorrect hash"));
+
+ switch(af) {
+
+ case AF_INET:
+ ip = mtod(m, struct ip *);
+ CARP_LOG(sc, ("incorrect hash from %s",
+ in_fmtaddr(ip->ip_src)));
+ break;
+
+ case AF_INET6:
+ ip6 = mtod(m, struct ip6_hdr *);
+ CARP_LOG(sc, ("incorrect hash from %s",
+ ip6_sprintf(&ip6->ip6_src)));
+ break;
+
+ default: CARP_LOG(sc, ("incorrect hash"));
+ break;
+ }
m_freem(m);
return;
}
