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-rw-r--r--src/vnet/ipsec/ipsec.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/vnet/ipsec/ipsec.h b/src/vnet/ipsec/ipsec.h
index 0245c5575e4..968d377cea0 100644
--- a/src/vnet/ipsec/ipsec.h
+++ b/src/vnet/ipsec/ipsec.h
@@ -36,6 +36,26 @@ typedef clib_error_t *(*enable_disable_cb_t) (int is_enable);
typedef struct
{
+ u64 key[2];
+ u64 value;
+ i32 bucket_lock;
+ u32 un_used;
+} ipsec4_hash_kv_16_8_t;
+
+typedef union
+{
+ struct
+ {
+ ip4_address_t ip4_addr[2];
+ u16 port[2];
+ u8 proto;
+ u8 pad[3];
+ };
+ ipsec4_hash_kv_16_8_t kv_16_8;
+} ipsec4_spd_5tuple_t;
+
+typedef struct
+{
u8 *name;
/* add/del callback */
add_del_sa_sess_cb_t add_del_sa_sess_cb;
@@ -130,6 +150,7 @@ typedef struct
uword *ipsec_if_real_dev_by_show_dev;
uword *ipsec_if_by_sw_if_index;
+ ipsec4_hash_kv_16_8_t *ipsec4_out_spd_hash_tbl;
clib_bihash_8_16_t tun4_protect_by_key;
clib_bihash_24_16_t tun6_protect_by_key;
@@ -206,8 +227,13 @@ typedef struct
u32 esp4_dec_tun_fq_index;
u32 esp6_dec_tun_fq_index;
+ /* Number of buckets for flow cache */
+ u32 ipsec4_out_spd_hash_num_buckets;
+ u32 ipsec4_out_spd_flow_cache_entries;
+ u32 epoch_count;
u8 async_mode;
u16 msg_id_base;
+ u8 flow_cache_flag;
} ipsec_main_t;
typedef enum ipsec_format_flags_t_
@@ -247,6 +273,51 @@ get_next_output_feature_node_index (vlib_buffer_t * b,
return node->next_nodes[next];
}
+static_always_inline u64
+ipsec4_hash_16_8 (ipsec4_hash_kv_16_8_t *v)
+{
+#ifdef clib_crc32c_uses_intrinsics
+ return clib_crc32c ((u8 *) v->key, 16);
+#else
+ u64 tmp = v->key[0] ^ v->key[1];
+ return clib_xxhash (tmp);
+#endif
+}
+
+static_always_inline int
+ipsec4_hash_key_compare_16_8 (u64 *a, u64 *b)
+{
+#if defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
+ u64x2 v;
+ v = u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
+ return u64x2_is_all_zero (v);
+#else
+ return ((a[0] ^ b[0]) | (a[1] ^ b[1])) == 0;
+#endif
+}
+
+/* clib_spinlock_lock is not used to save another memory indirection */
+static_always_inline void
+ipsec_spinlock_lock (i32 *lock)
+{
+ i32 free = 0;
+ while (!clib_atomic_cmp_and_swap_acq_relax_n (lock, &free, 1, 0))
+ {
+ /* atomic load limits number of compare_exchange executions */
+ while (clib_atomic_load_relax_n (lock))
+ CLIB_PAUSE ();
+ /* on failure, compare_exchange writes lock into free */
+ free = 0;
+ }
+}
+
+static_always_inline void
+ipsec_spinlock_unlock (i32 *lock)
+{
+ /* Make sure all reads/writes are complete before releasing the lock */
+ clib_atomic_release (lock);
+}
+
u32 ipsec_register_ah_backend (vlib_main_t * vm, ipsec_main_t * im,
const char *name,
const char *ah4_encrypt_node_name,