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Diffstat (limited to 'src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c')
-rw-r--r--src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c b/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
index e23f22023..2e8d54e38 100644
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
+++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2006-2012 Tobias Brunner
+ * Copyright (C) 2006-2013 Tobias Brunner
* Copyright (C) 2005-2009 Martin Willi
* Copyright (C) 2008 Andreas Steffen
* Copyright (C) 2006-2007 Fabian Hartmann, Noah Heusser
@@ -744,6 +744,17 @@ static struct xfrm_selector ts2selector(traffic_selector_t *src,
ts2subnet(src, &sel.saddr, &sel.prefixlen_s);
ts2ports(dst, &sel.dport, &sel.dport_mask);
ts2ports(src, &sel.sport, &sel.sport_mask);
+ if ((sel.proto == IPPROTO_ICMP || sel.proto == IPPROTO_ICMPV6) &&
+ (sel.dport || sel.sport))
+ {
+ /* the ICMP type is encoded in the most significant 8 bits and the ICMP
+ * code in the least significant 8 bits of the port. via XFRM we have
+ * to pass the ICMP type and code in the source and destination port
+ * fields, respectively. the port is in network byte order. */
+ u_int16_t port = max(sel.dport, sel.sport);
+ sel.sport = htons(port & 0xff);
+ sel.dport = htons(port >> 8);
+ }
sel.ifindex = 0;
sel.user = 0;