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authorJamal Hadi Salim <hadi@cyberus.ca>2005-06-18 22:42:13 -0700
committerDavid S. Miller <davem@davemloft.net>2005-06-18 22:42:13 -0700
commit26b15dad9f1c19d6d4f7b999b07eaa6d98e4b375 (patch)
tree2ca3039488d9df023fb84eaa7c1f52aa8d1ce69c /include/net/xfrm.h
parent3aa3dfb372576f30835a94409556e3c8681b5756 (diff)
[IPSEC] Add complete xfrm event notification
Heres the final patch. What this patch provides - netlink xfrm events - ability to have events generated by netlink propagated to pfkey and vice versa. - fixes the acquire lets-be-happy-with-one-success issue Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/net/xfrm.h')
-rw-r--r--include/net/xfrm.h29
1 files changed, 26 insertions, 3 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index d675836ba6c..a159655ebed 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -158,6 +158,27 @@ enum {
XFRM_STATE_DEAD
};
+/* events that could be sent by kernel */
+enum {
+ XFRM_SAP_INVALID,
+ XFRM_SAP_EXPIRED,
+ XFRM_SAP_ADDED,
+ XFRM_SAP_UPDATED,
+ XFRM_SAP_DELETED,
+ XFRM_SAP_FLUSHED,
+ __XFRM_SAP_MAX
+};
+#define XFRM_SAP_MAX (__XFRM_SAP_MAX - 1)
+
+/* callback structure passed from either netlink or pfkey */
+struct km_event
+{
+ u32 data;
+ u32 seq;
+ u32 pid;
+ u32 event;
+};
+
struct xfrm_type;
struct xfrm_dst;
struct xfrm_policy_afinfo {
@@ -179,6 +200,8 @@ struct xfrm_policy_afinfo {
extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
extern int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
+extern void km_policy_notify(struct xfrm_policy *xp, int dir, struct km_event *c);
+extern void km_state_notify(struct xfrm_state *x, struct km_event *c);
#define XFRM_ACQ_EXPIRES 30
@@ -290,11 +313,11 @@ struct xfrm_mgr
{
struct list_head list;
char *id;
- int (*notify)(struct xfrm_state *x, int event);
+ int (*notify)(struct xfrm_state *x, struct km_event *c);
int (*acquire)(struct xfrm_state *x, struct xfrm_tmpl *, struct xfrm_policy *xp, int dir);
struct xfrm_policy *(*compile_policy)(u16 family, int opt, u8 *data, int len, int *dir);
int (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, u16 sport);
- int (*notify_policy)(struct xfrm_policy *x, int dir, int event);
+ int (*notify_policy)(struct xfrm_policy *x, int dir, struct km_event *c);
};
extern int xfrm_register_km(struct xfrm_mgr *km);
@@ -817,7 +840,7 @@ extern int xfrm_state_add(struct xfrm_state *x);
extern int xfrm_state_update(struct xfrm_state *x);
extern struct xfrm_state *xfrm_state_lookup(xfrm_address_t *daddr, u32 spi, u8 proto, unsigned short family);
extern struct xfrm_state *xfrm_find_acq_byseq(u32 seq);
-extern void xfrm_state_delete(struct xfrm_state *x);
+extern int xfrm_state_delete(struct xfrm_state *x);
extern void xfrm_state_flush(u8 proto);
extern int xfrm_replay_check(struct xfrm_state *x, u32 seq);
extern void xfrm_replay_advance(struct xfrm_state *x, u32 seq);