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authorSteffen Klassert <steffen.klassert@secunet.com>2013-02-05 12:52:55 +0100
committerSteffen Klassert <steffen.klassert@secunet.com>2013-02-06 08:31:10 +0100
commita0073fe18e718a1c815fe8b0120f1ac3c60284ba (patch)
tree1f30d5f9415a90c5662376fd3e4c0420a431b9f1 /include/net/dst.h
parentfa8599db8f222fd9d351a640074377a841979187 (diff)
xfrm: Add a state resolution packet queue
As the default, we blackhole packets until the key manager resolves the states. This patch implements a packet queue where IPsec packets are queued until the states are resolved. We generate a dummy xfrm bundle, the output routine of the returned route enqueues the packet to a per policy queue and arms a timer that checks for state resolution when dst_output() is called. Once the states are resolved, the packets are sent out of the queue. If the states are not resolved after some time, the queue is flushed. This patch keeps the defaut behaviour to blackhole packets as long as we have no states. To enable the packet queue the sysctl xfrm_larval_drop must be switched off. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'include/net/dst.h')
-rw-r--r--include/net/dst.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/dst.h b/include/net/dst.h
index 9a7881066fb..3da47e0a4a1 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -61,6 +61,7 @@ struct dst_entry {
#define DST_NOPEER 0x0040
#define DST_FAKE_RTABLE 0x0080
#define DST_XFRM_TUNNEL 0x0100
+#define DST_XFRM_QUEUE 0x0200
unsigned short pending_confirm;