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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-08-24 03:18:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 15:08:42 -0700 |
| commit | 9d4a706d852411154d0c91b9ffb3bec68b94b25c (patch) | |
| tree | 1613607168baa8b654c300895cd7d0ffb6f18581 /net/ipv4/xfrm4_policy.c | |
| parent | f034b5d4efdfe0fb9e2a1ce1d95fa7914f24de49 (diff) | |
| download | linux-9d4a706d852411154d0c91b9ffb3bec68b94b25c.tar.gz linux-9d4a706d852411154d0c91b9ffb3bec68b94b25c.tar.bz2 linux-9d4a706d852411154d0c91b9ffb3bec68b94b25c.zip | |
[XFRM]: Add generation count to xfrm_state and xfrm_dst.
Each xfrm_state inserted gets a new generation counter
value. When a bundle is created, the xfrm_dst objects
get the current generation counter of the xfrm_state
they will attach to at dst->xfrm.
xfrm_bundle_ok() will return false if it sees an
xfrm_dst with a generation count different from the
generation count of the xfrm_state that dst points to.
This provides a facility by which to passively and
cheaply invalidate cached IPSEC routes during SA
database changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/xfrm4_policy.c')
| -rw-r--r-- | net/ipv4/xfrm4_policy.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index 42d8ded0f96a..479598566f1d 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -93,6 +93,7 @@ __xfrm4_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int xdst = (struct xfrm_dst *)dst1; xdst->route = &rt->u.dst; + xdst->genid = xfrm[i]->genid; dst1->next = dst_prev; dst_prev = dst1; |