ipsec: add/delete ipsec fast path policy

This patch introduces functions to add and delete fast path
policies.

Type: feature
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>
Change-Id: I3f1f1323148080c9dac531fbe9fa33bad4efe814

1 files changed, 78 insertions, 0 deletions

diff --git a/src/vnet/ipsec/ipsec_spd_policy.h b/src/vnet/ipsec/ipsec_spd_policy.h
index 8b78939cafa..24c0e4cefb1 100644
--- a/src/vnet/ipsec/ipsec_spd_policy.h
+++ b/src/vnet/ipsec/ipsec_spd_policy.h
@@ -25,6 +25,21 @@
 
 #define IPSEC_POLICY_PROTOCOL_ANY IP_PROTOCOL_RESERVED
 
+/**
+ * This number is calculated as ceil power of 2 for the number
+ * sizeof(clib_bihash_kv_16_8_t)=24 * BIHASH_KVP_PER_PAGE=4 * COLLISIONS_NO=8
+ *
+ */
+
+#define IPSEC_FP_IP4_HASH_MEM_PER_BUCKET 1024
+
+/**
+ * This number is calculated as ceil power of 2 for the number
+ * sizeof(clib_bihash_kv_40_8_t)=48 * BIHASH_KVP_PER_PAGE=4 * COLLISIONS_NO=8
+ *
+ */
+#define IPSEC_FP_IP6_HASH_MEM_PER_BUCKET 2048
+
 #define foreach_ipsec_policy_action \
   _ (0, BYPASS, "bypass")           \
   _ (1, DISCARD, "discard")         \
@@ -79,6 +94,7 @@ typedef struct ipsec_policy_t_
   ipsec_policy_action_t policy;
   u32 sa_id;
   u32 sa_index;
+  u32 fp_mask_type_id;
 } ipsec_policy_t;
 
 /**
@@ -156,6 +172,68 @@ typedef union
   };
 } ipsec_fp_lookup_value_t;
 
+/**
+ *  @brief add or delete a fast path policy
+ */
+int ipsec_fp_add_del_policy (void *fp_spd, ipsec_policy_t *policy, int is_add,
+			     u32 *stat_index);
+
+static_always_inline int
+ipsec_policy_is_equal (ipsec_policy_t *p1, ipsec_policy_t *p2)
+{
+  if (p1->priority != p2->priority)
+    return 0;
+  if (p1->type != p2->type)
+    return (0);
+  if (p1->policy != p2->policy)
+    return (0);
+  if (p1->sa_id != p2->sa_id)
+    return (0);
+  if (p1->protocol != p2->protocol)
+    return (0);
+  if (p1->lport.start != p2->lport.start)
+    return (0);
+  if (p1->lport.stop != p2->lport.stop)
+    return (0);
+  if (p1->rport.start != p2->rport.start)
+    return (0);
+  if (p1->rport.stop != p2->rport.stop)
+    return (0);
+  if (p1->is_ipv6 != p2->is_ipv6)
+    return (0);
+  if (p2->is_ipv6)
+    {
+      if (p1->laddr.start.ip6.as_u64[0] != p2->laddr.start.ip6.as_u64[0])
+	return (0);
+      if (p1->laddr.start.ip6.as_u64[1] != p2->laddr.start.ip6.as_u64[1])
+	return (0);
+      if (p1->laddr.stop.ip6.as_u64[0] != p2->laddr.stop.ip6.as_u64[0])
+	return (0);
+      if (p1->laddr.stop.ip6.as_u64[1] != p2->laddr.stop.ip6.as_u64[1])
+	return (0);
+      if (p1->raddr.start.ip6.as_u64[0] != p2->raddr.start.ip6.as_u64[0])
+	return (0);
+      if (p1->raddr.start.ip6.as_u64[1] != p2->raddr.start.ip6.as_u64[1])
+	return (0);
+      if (p1->raddr.stop.ip6.as_u64[0] != p2->raddr.stop.ip6.as_u64[0])
+	return (0);
+      if (p1->laddr.stop.ip6.as_u64[1] != p2->laddr.stop.ip6.as_u64[1])
+	return (0);
+    }
+  else
+    {
+      if (p1->laddr.start.ip4.as_u32 != p2->laddr.start.ip4.as_u32)
+	return (0);
+      if (p1->laddr.stop.ip4.as_u32 != p2->laddr.stop.ip4.as_u32)
+	return (0);
+      if (p1->raddr.start.ip4.as_u32 != p2->raddr.start.ip4.as_u32)
+	return (0);
+      if (p1->raddr.stop.ip4.as_u32 != p2->raddr.stop.ip4.as_u32)
+	return (0);
+    }
+  return (1);
+}
+
 #endif /* __IPSEC_SPD_POLICY_H__ */
 
 /*