Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=628529b6ee334fedc8d25ce56205bb99566572b9
Commit: 628529b6ee334fedc8d25ce56205bb99566572b9
Parent: 007a531b0a0c902392a3deff730acd28ce6625c7
Author: Jamal Hadi Salim <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 2 22:41:14 2007 -0700
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Tue Jul 10 22:16:35 2007 -0700
[XFRM] Introduce standalone SAD lookup
This allows other in-kernel functions to do SAD lookups.
The only known user at the moment is pktgen.
Signed-off-by: Jamal Hadi Salim <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
include/net/xfrm.h | 4 ++++
net/xfrm/xfrm_state.c | 31 +++++++++++++++++++++++++++++++
2 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index ee3827f..d3a898b 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -928,6 +928,10 @@ extern struct xfrm_state *xfrm_state_find(xfrm_address_t
*daddr, xfrm_address_t
struct flowi *fl, struct xfrm_tmpl
*tmpl,
struct xfrm_policy *pol, int *err,
unsigned short family);
+extern struct xfrm_state * xfrm_stateonly_find(xfrm_address_t *daddr,
+ xfrm_address_t *saddr,
+ unsigned short family,
+ u8 mode, u8 proto, u32 reqid);
extern int xfrm_state_check_expire(struct xfrm_state *x);
extern void xfrm_state_insert(struct xfrm_state *x);
extern int xfrm_state_add(struct xfrm_state *x);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index dfacb9c..e070c3f 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -686,6 +686,37 @@ out:
return x;
}
+struct xfrm_state *
+xfrm_stateonly_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
+ unsigned short family, u8 mode, u8 proto, u32 reqid)
+{
+ unsigned int h = xfrm_dst_hash(daddr, saddr, reqid, family);
+ struct xfrm_state *rx = NULL, *x = NULL;
+ struct hlist_node *entry;
+
+ spin_lock(&xfrm_state_lock);
+ hlist_for_each_entry(x, entry, xfrm_state_bydst+h, bydst) {
+ if (x->props.family == family &&
+ x->props.reqid == reqid &&
+ !(x->props.flags & XFRM_STATE_WILDRECV) &&
+ xfrm_state_addr_check(x, daddr, saddr, family) &&
+ mode == x->props.mode &&
+ proto == x->id.proto &&
+ x->km.state == XFRM_STATE_VALID) {
+ rx = x;
+ break;
+ }
+ }
+
+ if (rx)
+ xfrm_state_hold(rx);
+ spin_unlock(&xfrm_state_lock);
+
+
+ return rx;
+}
+EXPORT_SYMBOL(xfrm_stateonly_find);
+
static void __xfrm_state_insert(struct xfrm_state *x)
{
unsigned int h;
-
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