ipsec: add per-SA error counters

[vpp.git] / src / vnet / ipsec / ah.h

diff --git a/src/vnet/ipsec/ah.h b/src/vnet/ipsec/ah.h
index 37fc29a..ae4cd0b 100644 (file)
--- a/src/vnet/ipsec/ah.h
+++ b/src/vnet/ipsec/ah.h
@@ -15,14 +15,9 @@
 #ifndef __AH_H__
 #define __AH_H__
 
-
 #include <vnet/ip/ip.h>
 #include <vnet/ipsec/ipsec.h>
-
-#include <openssl/hmac.h>
-#include <openssl/rand.h>
-#include <openssl/evp.h>
-
+#include <vnet/ipsec/ipsec.api_enum.h>
 
 typedef struct
 {
@@ -49,6 +44,67 @@ typedef CLIB_PACKED (struct {
 }) ip6_and_ah_header_t;
 /* *INDENT-ON* */
 
+always_inline u32
+ah_encrypt_err_to_sa_err (u32 err)
+{
+  switch (err)
+    {
+    case AH_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR:
+      return IPSEC_SA_ERROR_CRYPTO_ENGINE_ERROR;
+    case AH_ENCRYPT_ERROR_SEQ_CYCLED:
+      return IPSEC_SA_ERROR_SEQ_CYCLED;
+    }
+  return ~0;
+}
+
+always_inline u32
+ah_decrypt_err_to_sa_err (u32 err)
+{
+  switch (err)
+    {
+    case AH_DECRYPT_ERROR_DECRYPTION_FAILED:
+      return IPSEC_SA_ERROR_DECRYPTION_FAILED;
+    case AH_DECRYPT_ERROR_INTEG_ERROR:
+      return IPSEC_SA_ERROR_INTEG_ERROR;
+    case AH_DECRYPT_ERROR_NO_TAIL_SPACE:
+      return IPSEC_SA_ERROR_NO_TAIL_SPACE;
+    case AH_DECRYPT_ERROR_DROP_FRAGMENTS:
+      return IPSEC_SA_ERROR_DROP_FRAGMENTS;
+    case AH_DECRYPT_ERROR_REPLAY:
+      return IPSEC_SA_ERROR_REPLAY;
+    }
+  return ~0;
+}
+
+always_inline void
+ah_encrypt_set_next_index (vlib_buffer_t *b, vlib_node_runtime_t *node,
+                          u32 thread_index, u32 err, u16 index, u16 *nexts,
+                          u16 drop_next, u32 sa_index)
+{
+  ipsec_set_next_index (b, node, thread_index, err,
+                       ah_encrypt_err_to_sa_err (err), index, nexts,
+                       drop_next, sa_index);
+}
+
+always_inline void
+ah_decrypt_set_next_index (vlib_buffer_t *b, vlib_node_runtime_t *node,
+                          u32 thread_index, u32 err, u16 index, u16 *nexts,
+                          u16 drop_next, u32 sa_index)
+{
+  ipsec_set_next_index (b, node, thread_index, err,
+                       ah_decrypt_err_to_sa_err (err), index, nexts,
+                       drop_next, sa_index);
+}
+
+always_inline u8
+ah_calc_icv_padding_len (u8 icv_size, int is_ipv6)
+{
+  ASSERT (0 == is_ipv6 || 1 == is_ipv6);
+  const u8 req_multiple = 4 + 4 * is_ipv6;     // 4 for ipv4, 8 for ipv6
+  const u8 total_size = sizeof (ah_header_t) + icv_size;
+  return (req_multiple - total_size % req_multiple) % req_multiple;
+}
+
 #endif /* __AH_H__ */
 
 /*