xfrm: Add basic infrastructure to support IPsec extended sequence numbers

[linux.git] / include / linux / xfrm.h

diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index b93d6f5980851e5c7fe4ea1cfe11235ebada4fd3..22e61fdf75a2bd46a656e164e046a006acd43343 100644 (file)
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -84,6 +84,16 @@ struct xfrm_replay_state {
        __u32   bitmap;
 };
 
+struct xfrm_replay_state_esn {
+       unsigned int    bmp_len;
+       __u32           oseq;
+       __u32           seq;
+       __u32           oseq_hi;
+       __u32           seq_hi;
+       __u32           replay_window;
+       __u32           bmp[0];
+};
+
 struct xfrm_algo {
        char            alg_name[64];
        unsigned int    alg_key_len;    /* in bits */
@@ -284,6 +294,7 @@ enum xfrm_attr_type_t {
        XFRMA_ALG_AUTH_TRUNC,   /* struct xfrm_algo_auth */
        XFRMA_MARK,             /* struct xfrm_mark */
        XFRMA_TFCPAD,           /* __u32 */
+       XFRMA_REPLAY_ESN_VAL,   /* struct xfrm_replay_esn */
        __XFRMA_MAX
 
 #define XFRMA_MAX (__XFRMA_MAX - 1)
@@ -351,6 +362,7 @@ struct xfrm_usersa_info {
 #define XFRM_STATE_ICMP                16
 #define XFRM_STATE_AF_UNSPEC   32
 #define XFRM_STATE_ALIGN4      64
+#define XFRM_STATE_ESN         128
 };
 
 struct xfrm_usersa_id {