crypto: introduce crypto infra

Change-Id: Ibf320b3e7b054b686f3af9a55afd5d5bda9b1048
Signed-off-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>

13 files changed, 589 insertions, 233 deletions

diff --git a/src/vnet/CMakeLists.txt b/src/vnet/CMakeLists.txt
index e486aa97510..b6028e90742 100644
--- a/src/vnet/CMakeLists.txt
+++ b/src/vnet/CMakeLists.txt
@@ -531,6 +531,20 @@ list(APPEND VNET_SOURCES
 list(APPEND VNET_API_FILES bfd/bfd.api)
 
 ##############################################################################
+# Crypto
+##############################################################################
+
+list(APPEND VNET_SOURCES
+  crypto/cli.c
+  crypto/crypto.c
+  crypto/format.c
+)
+
+list(APPEND VNET_HEADERS
+  crypto/crypto.h
+)
+
+##############################################################################
 # Layer 3 protocol: IPSec
 ##############################################################################
 list(APPEND VNET_SOURCES
diff --git a/src/vnet/crypto/cli.c b/src/vnet/crypto/cli.c
new file mode 100644
index 00000000000..d93577ed113
--- /dev/null
+++ b/src/vnet/crypto/cli.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdbool.h>
+#include <vlib/vlib.h>
+#include <vnet/crypto/crypto.h>
+
+static clib_error_t *
+show_crypto_engines_command_fn (vlib_main_t * vm,
+				unformat_input_t * input,
+				vlib_cli_command_t * cmd)
+{
+  unformat_input_t _line_input, *line_input = &_line_input;
+  vnet_crypto_main_t *cm = &crypto_main;
+  vnet_crypto_engine_t *p;
+
+  if (unformat_user (input, unformat_line_input, line_input))
+    unformat_free (line_input);
+
+  if (vec_len (cm->engines) == 0)
+    {
+      vlib_cli_output (vm, "No crypto engines registered");
+      return 0;
+    }
+
+  vlib_cli_output (vm, "%-20s%-8s%s", "Name", "Prio", "Description");
+  /* *INDENT-OFF* */
+  vec_foreach (p, cm->engines)
+    {
+      vlib_cli_output (vm, "%-20s%-8u%s", p->name, p->priority, p->desc);
+    }
+  /* *INDENT-ON* */
+  return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_crypto_engines_command, static) =
+{
+  .path = "show crypto engines",
+  .short_help = "show crypto engines",
+  .function = show_crypto_engines_command_fn,
+};
+
+static clib_error_t *
+show_crypto_handlers_command_fn (vlib_main_t * vm,
+			unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+  vnet_crypto_main_t *cm = &crypto_main;
+  unformat_input_t _line_input, *line_input = &_line_input;
+  u8 *s = 0;
+
+  if (unformat_user (input, unformat_line_input, line_input))
+    unformat_free (line_input);
+
+  vlib_cli_output (vm, "%-40s%-20s%s", "Name", "Active", "Candidates");
+  for (int i = 1; i < VNET_CRYPTO_N_OP_TYPES; i++)
+    {
+      vnet_crypto_op_type_data_t *otd = cm->opt_data + i;
+      vnet_crypto_engine_t *e;
+
+      vec_reset_length (s);
+      vec_foreach (e, cm->engines)
+	{
+	  if (e->ops_handlers[i] != 0)
+	    s = format (s, "%U ", format_vnet_crypto_engine, e - cm->engines);
+	}
+      vlib_cli_output (vm, "%-40U%-20U%v", format_vnet_crypto_op, i,
+		       format_vnet_crypto_engine, otd->active_engine_index,s);
+    }
+  vec_free (s);
+  return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_crypto_handlers_command, static) =
+{
+  .path = "show crypto handlers",
+  .short_help = "show crypto handlers",
+  .function = show_crypto_handlers_command_fn,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/crypto/crypto.c b/src/vnet/crypto/crypto.c
new file mode 100644
index 00000000000..a6f45be053f
--- /dev/null
+++ b/src/vnet/crypto/crypto.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdbool.h>
+#include <vlib/vlib.h>
+#include <vnet/crypto/crypto.h>
+
+vnet_crypto_main_t crypto_main;
+
+u32
+vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
+{
+  vnet_crypto_main_t *cm = &crypto_main;
+  u32 rv = 0, i;
+
+  for (i = 0; i < n_ops; i++)
+    {
+      vnet_crypto_op_type_t opt = ops[i].op;
+      vnet_crypto_op_t *opp = &ops[i];
+
+      if (cm->ops_handlers[opt])
+	rv += (cm->ops_handlers[opt]) (vm, &opp, 1);
+      else
+	ops[i].status = VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER;
+    }
+
+  return rv;
+}
+
+u32
+vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
+			     char *desc)
+{
+  vnet_crypto_main_t *cm = &crypto_main;
+  vnet_crypto_engine_t *p;
+
+  vec_add2 (cm->engines, p, 1);
+  p->name = name;
+  p->desc = desc;
+  p->priority = prio;
+
+  return p - cm->engines;
+}
+
+vlib_error_t *
+vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
+				  vnet_crypto_op_type_t opt,
+				  vnet_crypto_ops_handler_t * fn)
+{
+  vnet_crypto_main_t *cm = &crypto_main;
+  vnet_crypto_engine_t *ae, *e = vec_elt_at_index (cm->engines, engine_index);
+  vnet_crypto_op_type_data_t *otd = cm->opt_data + opt;
+  vec_validate_aligned (cm->ops_handlers, VNET_CRYPTO_N_OP_TYPES - 1,
+			CLIB_CACHE_LINE_BYTES);
+  e->ops_handlers[opt] = fn;
+
+  if (otd->active_engine_index == ~0)
+    {
+      otd->active_engine_index = engine_index;
+      cm->ops_handlers[opt] = fn;
+      return 0;
+    }
+  ae = vec_elt_at_index (cm->engines, otd->active_engine_index);
+  if (ae->priority < e->priority)
+    {
+      otd->active_engine_index = engine_index;
+      cm->ops_handlers[opt] = fn;
+    }
+
+  return 0;
+}
+
+clib_error_t *
+vnet_crypto_init (vlib_main_t * vm)
+{
+  vnet_crypto_main_t *cm = &crypto_main;
+  vlib_thread_main_t *tm = vlib_get_thread_main ();
+  const char *enc = "encrypt";
+  const char *dec = "decrypt";
+  const char *hmac = "hmac";
+
+  vec_validate_aligned (cm->threads, tm->n_vlib_mains, CLIB_CACHE_LINE_BYTES);
+  vec_validate (cm->algs, VNET_CRYPTO_N_ALGS);
+
+#define _(n, s) \
+  cm->algs[VNET_CRYPTO_ALG_##n].name = s; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_ENC].alg = VNET_CRYPTO_ALG_##n; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_DEC].alg = VNET_CRYPTO_ALG_##n; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_ENC].desc = enc; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_DEC].desc = dec; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_ENC].active_engine_index = ~0; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_DEC].active_engine_index = ~0;
+  foreach_crypto_alg;
+#undef _
+
+#define _(n, s) \
+  cm->algs[VNET_CRYPTO_ALG_##n].name = s; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_HMAC].alg = VNET_CRYPTO_ALG_##n; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_HMAC].desc = hmac; \
+  cm->opt_data[VNET_CRYPTO_OP_##n##_HMAC].active_engine_index = ~0;
+  foreach_hmac_alg;
+#undef _
+
+  return 0;
+}
+
+VLIB_INIT_FUNCTION (vnet_crypto_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/crypto/crypto.h b/src/vnet/crypto/crypto.h
new file mode 100644
index 00000000000..9f4c85b36f5
--- /dev/null
+++ b/src/vnet/crypto/crypto.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef included_vnet_crypto_crypto_h
+#define included_vnet_crypto_crypto_h
+
+#define VNET_CRYPTO_RING_SIZE 512
+
+#include <vlib/vlib.h>
+
+#define foreach_crypto_alg \
+  _(DES_CBC, "des-cbc") \
+  _(3DES_CBC, "3des-cbc") \
+  _(AES_128_CBC, "aes-128-cbc") \
+  _(AES_192_CBC, "aes-192-cbc") \
+  _(AES_256_CBC, "aes-256-cbc")
+
+#define foreach_hmac_alg \
+  _(SHA1, "sha-1") \
+  _(SHA224, "sha-224")  \
+  _(SHA256, "sha-256")  \
+  _(SHA384, "sha-384")  \
+  _(SHA512, "sha-512")
+
+/* *INDENT-OFF* */
+typedef enum
+{
+#define _(n, s) VNET_CRYPTO_ALG_##n,
+  foreach_crypto_alg
+#undef _
+#define _(n, s) VNET_CRYPTO_ALG_##n,
+  foreach_hmac_alg
+#undef _
+  VNET_CRYPTO_N_ALGS,
+} vnet_crypto_alg_t;
+
+typedef enum
+{
+  VNET_CRYPTO_OP_NONE = 0,
+#define _(n, s) VNET_CRYPTO_OP_##n##_ENC, VNET_CRYPTO_OP_##n##_DEC,
+  foreach_crypto_alg
+#undef _
+#define _(n, s) VNET_CRYPTO_OP_##n##_HMAC,
+  foreach_hmac_alg
+#undef _
+    VNET_CRYPTO_N_OP_TYPES,
+} vnet_crypto_op_type_t;
+/* *INDENT-ON* */
+
+typedef struct
+{
+  char *name;
+} vnet_crypto_alg_data_t;
+
+typedef enum
+{
+  VNET_CRYPTO_OP_STATUS_PENDING,
+  VNET_CRYPTO_OP_STATUS_COMPLETED,
+  VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER,
+} vnet_crypto_op_status_t;
+
+typedef struct
+{
+  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+  vnet_crypto_op_type_t op:16;
+  vnet_crypto_op_status_t status:8;
+  u8 key_len;
+  u16 flags;
+#define VNET_CRYPTO_OP_FLAG_INIT_IV 1
+  u32 len;
+  u8 *key;
+  u8 *iv;
+  u8 *src;
+  u8 *dst;
+} vnet_crypto_op_t;
+
+typedef struct
+{
+  vnet_crypto_alg_t alg;
+  const char *desc;
+  u32 active_engine_index;
+} vnet_crypto_op_type_data_t;
+
+typedef struct
+{
+  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+  u32 head;
+  u32 tail;
+  u32 size;
+  vnet_crypto_alg_t alg:8;
+  vnet_crypto_op_type_t op:8;
+  vnet_crypto_op_t *jobs[0];
+} vnet_crypto_queue_t;
+
+typedef struct
+{
+  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+  clib_bitmap_t *act_queues;
+  vnet_crypto_queue_t *queues[VNET_CRYPTO_N_OP_TYPES];
+} vnet_crypto_thread_t;
+
+typedef u32 (vnet_crypto_ops_handler_t) (vlib_main_t * vm,
+					 vnet_crypto_op_t * ops[], u32 n_ops);
+
+u32 vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
+				 char *desc);
+
+vlib_error_t *vnet_crypto_register_ops_handler (vlib_main_t * vm,
+						u32 provider_index,
+						vnet_crypto_op_type_t opt,
+						vnet_crypto_ops_handler_t *
+						f);
+
+typedef struct
+{
+  char *name;
+  char *desc;
+  int priority;
+  vnet_crypto_ops_handler_t *ops_handlers[VNET_CRYPTO_N_OP_TYPES];
+} vnet_crypto_engine_t;
+
+typedef struct
+{
+  vnet_crypto_alg_data_t *algs;
+  vnet_crypto_thread_t *threads;
+  vnet_crypto_ops_handler_t **ops_handlers;
+  vnet_crypto_op_type_data_t opt_data[VNET_CRYPTO_N_OP_TYPES];
+  vnet_crypto_engine_t *engines;
+} vnet_crypto_main_t;
+
+extern vnet_crypto_main_t crypto_main;
+
+u32 vnet_crypto_submit_ops (vlib_main_t * vm, vnet_crypto_op_t ** jobs,
+			    u32 n_jobs);
+
+u32 vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
+			     u32 n_ops);
+
+format_function_t format_vnet_crypto_alg;
+format_function_t format_vnet_crypto_engine;
+format_function_t format_vnet_crypto_op;
+
+#endif /* included_vnet_crypto_crypto_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/crypto/format.c b/src/vnet/crypto/format.c
new file mode 100644
index 00000000000..88c7c0fe7f1
--- /dev/null
+++ b/src/vnet/crypto/format.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdbool.h>
+#include <vlib/vlib.h>
+#include <vnet/crypto/crypto.h>
+
+u8 *
+format_vnet_crypto_alg (u8 * s, va_list * args)
+{
+  vnet_crypto_alg_t alg = va_arg (*args, vnet_crypto_alg_t);
+  vnet_crypto_main_t *cm = &crypto_main;
+  vnet_crypto_alg_data_t *d = vec_elt_at_index (cm->algs, alg);
+  return format (s, "%s", d->name);
+}
+
+u8 *
+format_vnet_crypto_op (u8 * s, va_list * args)
+{
+  vnet_crypto_main_t *cm = &crypto_main;
+  vnet_crypto_op_type_t op = va_arg (*args, vnet_crypto_op_type_t);
+  vnet_crypto_op_type_data_t *otd = cm->opt_data + op;
+
+  return format (s, "%s-%U", otd->desc, format_vnet_crypto_alg, otd->alg);
+}
+
+u8 *
+format_vnet_crypto_engine (u8 * s, va_list * args)
+{
+  vnet_crypto_main_t *cm = &crypto_main;
+  u32 crypto_engine_index = va_arg (*args, u32);
+  vnet_crypto_engine_t *e;
+
+  if (crypto_engine_index == ~0)
+    return s;
+
+  e = vec_elt_at_index (cm->engines, crypto_engine_index);
+
+  return format (s, "%s", e->name);
+}
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/ipsec/ah.h b/src/vnet/ipsec/ah.h
index f74ad9b01c1..d0b4c21a4bc 100644
--- a/src/vnet/ipsec/ah.h
+++ b/src/vnet/ipsec/ah.h
@@ -15,15 +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>
-
-
 typedef struct
 {
   unsigned char nexthdr;
diff --git a/src/vnet/ipsec/ah_decrypt.c b/src/vnet/ipsec/ah_decrypt.c
index 0fc4f48571d..2488fa918f6 100644
--- a/src/vnet/ipsec/ah_decrypt.c
+++ b/src/vnet/ipsec/ah_decrypt.c
@@ -84,7 +84,6 @@ ah_decrypt_inline (vlib_main_t * vm,
 {
   u32 n_left_from, *from, next_index, *to_next, thread_index;
   ipsec_main_t *im = &ipsec_main;
-  ipsec_proto_main_t *em = &ipsec_proto_main;
   from = vlib_frame_vector_args (from_frame);
   n_left_from = from_frame->n_vectors;
   int icv_size;
@@ -173,8 +172,7 @@ ah_decrypt_inline (vlib_main_t * vm,
 	    (&ipsec_sa_counters, thread_index, sa_index0,
 	     1, i_b0->current_length);
 
-	  icv_size =
-	    em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
+	  icv_size = im->integ_algs[sa0->integ_alg].trunc_size;
 	  if (PREDICT_TRUE (sa0->integ_alg != IPSEC_INTEG_ALG_NONE))
 	    {
 	      u8 sig[64];
@@ -205,7 +203,7 @@ ah_decrypt_inline (vlib_main_t * vm,
 		  icv_padding_len =
 		    ah_calc_icv_padding_len (icv_size, 0 /* is_ipv6 */ );
 		}
-	      hmac_calc (sa0->integ_alg, sa0->integ_key.data,
+	      hmac_calc (vm, sa0->integ_alg, sa0->integ_key.data,
 			 sa0->integ_key.len, (u8 *) ih4, i_b0->current_length,
 			 sig, sa0->use_esn, sa0->seq_hi);
 
diff --git a/src/vnet/ipsec/ah_encrypt.c b/src/vnet/ipsec/ah_encrypt.c
index 2e561deb8b6..ce930bd5529 100644
--- a/src/vnet/ipsec/ah_encrypt.c
+++ b/src/vnet/ipsec/ah_encrypt.c
@@ -89,7 +89,6 @@ ah_encrypt_inline (vlib_main_t * vm,
   from = vlib_frame_vector_args (from_frame);
   n_left_from = from_frame->n_vectors;
   ipsec_main_t *im = &ipsec_main;
-  ipsec_proto_main_t *em = &ipsec_proto_main;
   next_index = node->cached_next_index;
   thread_index = vm->thread_index;
 
@@ -153,8 +152,7 @@ ah_encrypt_inline (vlib_main_t * vm,
 	      adv = -sizeof (ah_header_t);
 	    }
 
-	  icv_size =
-	    em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
+	  icv_size = im->integ_algs[sa0->integ_alg].trunc_size;
 	  const u8 padding_len = ah_calc_icv_padding_len (icv_size, is_ip6);
 	  adv -= padding_len;
 	  /* transport mode save the eth header before it is overwritten */
@@ -267,7 +265,7 @@ ah_encrypt_inline (vlib_main_t * vm,
 	    sizeof (ah_header_t);
 	  clib_memset (digest, 0, icv_size);
 
-	  unsigned size = hmac_calc (sa0->integ_alg, sa0->integ_key.data,
+	  unsigned size = hmac_calc (vm, sa0->integ_alg, sa0->integ_key.data,
 				     sa0->integ_key.len,
 				     vlib_buffer_get_current (i_b0),
 				     i_b0->current_length, sig, sa0->use_esn,
diff --git a/src/vnet/ipsec/esp.h b/src/vnet/ipsec/esp.h
index 00472654554..17300383e16 100644
--- a/src/vnet/ipsec/esp.h
+++ b/src/vnet/ipsec/esp.h
@@ -16,6 +16,7 @@
 #define __ESP_H__
 
 #include <vnet/ip/ip.h>
+#include <vnet/crypto/crypto.h>
 #include <vnet/ipsec/ipsec.h>
 
 typedef struct
@@ -202,106 +203,25 @@ esp_seq_advance (ipsec_sa_t * sa)
   return 0;
 }
 
-always_inline void
-ipsec_proto_init ()
-{
-  ipsec_proto_main_t *em = &ipsec_proto_main;
-  vlib_thread_main_t *tm = vlib_get_thread_main ();
-
-  clib_memset (em, 0, sizeof (em[0]));
-
-  vec_validate (em->ipsec_proto_main_crypto_algs, IPSEC_CRYPTO_N_ALG - 1);
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_128].type =
-    EVP_aes_128_cbc ();
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_192].type =
-    EVP_aes_192_cbc ();
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_256].type =
-    EVP_aes_256_cbc ();
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_128].iv_size = 16;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_192].iv_size = 16;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_256].iv_size = 16;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_128].block_size =
-    16;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_192].block_size =
-    16;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_256].block_size =
-    16;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_DES_CBC].type =
-    EVP_des_cbc ();
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_3DES_CBC].type =
-    EVP_des_ede3_cbc ();
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_DES_CBC].block_size = 8;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_3DES_CBC].block_size = 8;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_DES_CBC].iv_size = 8;
-  em->ipsec_proto_main_crypto_algs[IPSEC_CRYPTO_ALG_3DES_CBC].iv_size = 8;
-
-  vec_validate (em->ipsec_proto_main_integ_algs, IPSEC_INTEG_N_ALG - 1);
-  ipsec_proto_main_integ_alg_t *i;
-
-  i = &em->ipsec_proto_main_integ_algs[IPSEC_INTEG_ALG_SHA1_96];
-  i->md = EVP_sha1 ();
-  i->trunc_size = 12;
-
-  i = &em->ipsec_proto_main_integ_algs[IPSEC_INTEG_ALG_SHA_256_96];
-  i->md = EVP_sha256 ();
-  i->trunc_size = 12;
-
-  i = &em->ipsec_proto_main_integ_algs[IPSEC_INTEG_ALG_SHA_256_128];
-  i->md = EVP_sha256 ();
-  i->trunc_size = 16;
-
-  i = &em->ipsec_proto_main_integ_algs[IPSEC_INTEG_ALG_SHA_384_192];
-  i->md = EVP_sha384 ();
-  i->trunc_size = 24;
-
-  i = &em->ipsec_proto_main_integ_algs[IPSEC_INTEG_ALG_SHA_512_256];
-  i->md = EVP_sha512 ();
-  i->trunc_size = 32;
-
-  vec_validate_aligned (em->per_thread_data, tm->n_vlib_mains - 1,
-			CLIB_CACHE_LINE_BYTES);
-  int thread_id;
-
-  for (thread_id = 0; thread_id < tm->n_vlib_mains; thread_id++)
-    {
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-      em->per_thread_data[thread_id].encrypt_ctx = EVP_CIPHER_CTX_new ();
-      em->per_thread_data[thread_id].decrypt_ctx = EVP_CIPHER_CTX_new ();
-      em->per_thread_data[thread_id].hmac_ctx = HMAC_CTX_new ();
-#else
-      EVP_CIPHER_CTX_init (&(em->per_thread_data[thread_id].encrypt_ctx));
-      EVP_CIPHER_CTX_init (&(em->per_thread_data[thread_id].decrypt_ctx));
-      HMAC_CTX_init (&(em->per_thread_data[thread_id].hmac_ctx));
-#endif
-    }
-}
 
 always_inline unsigned int
-hmac_calc (ipsec_integ_alg_t alg,
-	   u8 * key,
-	   int key_len,
+hmac_calc (vlib_main_t * vm, ipsec_integ_alg_t alg, u8 * key, int key_len,
 	   u8 * data, int data_len, u8 * signature, u8 use_esn, u32 seq_hi)
 {
-  ipsec_proto_main_t *em = &ipsec_proto_main;
-  u32 thread_index = vlib_get_thread_index ();
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  HMAC_CTX *ctx = em->per_thread_data[thread_index].hmac_ctx;
-#else
-  HMAC_CTX *ctx = &(em->per_thread_data[thread_index].hmac_ctx);
-#endif
-  const EVP_MD *md = NULL;
-  unsigned int len;
-
+  ipsec_main_t *im = &ipsec_main;
+  vnet_crypto_op_t _op, *op = &_op;
   ASSERT (alg < IPSEC_INTEG_N_ALG);
 
-  if (PREDICT_FALSE (em->ipsec_proto_main_integ_algs[alg].md == 0))
+  if (PREDICT_FALSE (im->integ_algs[alg].op_type == 0))
     return 0;
 
-  if (PREDICT_FALSE (alg != em->per_thread_data[thread_index].last_integ_alg))
-    {
-      md = em->ipsec_proto_main_integ_algs[alg].md;
-      em->per_thread_data[thread_index].last_integ_alg = alg;
-    }
+  op->op = im->integ_algs[alg].op_type;
+  op->key = key;
+  op->key_len = key_len;
+  op->src = data;
+  op->len = data_len;
+  op->dst = signature;
+#if 0
 
   HMAC_Init_ex (ctx, key, key_len, md, NULL);
 
@@ -311,7 +231,9 @@ hmac_calc (ipsec_integ_alg_t alg,
     HMAC_Update (ctx, (u8 *) & seq_hi, sizeof (seq_hi));
   HMAC_Final (ctx, signature, &len);
 
-  return em->ipsec_proto_main_integ_algs[alg].trunc_size;
+#endif
+  vnet_crypto_process_ops (vm, op, 1);
+  return im->integ_algs[alg].trunc_size;
 }
 
 #endif /* __ESP_H__ */
diff --git a/src/vnet/ipsec/esp_decrypt.c b/src/vnet/ipsec/esp_decrypt.c
index 7e5114ce2cf..1ee7ce8fd0a 100644
--- a/src/vnet/ipsec/esp_decrypt.c
+++ b/src/vnet/ipsec/esp_decrypt.c
@@ -82,35 +82,28 @@ format_esp_decrypt_trace (u8 * s, va_list * args)
 }
 
 always_inline void
-esp_decrypt_cbc (ipsec_crypto_alg_t alg,
+esp_decrypt_cbc (vlib_main_t * vm, ipsec_crypto_alg_t alg,
 		 u8 * in, u8 * out, size_t in_len, u8 * key, u8 * iv)
 {
-  ipsec_proto_main_t *em = &ipsec_proto_main;
-  u32 thread_index = vlib_get_thread_index ();
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  EVP_CIPHER_CTX *ctx = em->per_thread_data[thread_index].decrypt_ctx;
-#else
-  EVP_CIPHER_CTX *ctx = &(em->per_thread_data[thread_index].decrypt_ctx);
-#endif
-  const EVP_CIPHER *cipher = NULL;
-  int out_len;
+  ipsec_main_t *im = &ipsec_main;
+  ipsec_main_crypto_alg_t *a;
+  vnet_crypto_op_t _op, *op = &_op;
 
   ASSERT (alg < IPSEC_CRYPTO_N_ALG);
 
-  if (PREDICT_FALSE (em->ipsec_proto_main_crypto_algs[alg].type == 0))
-    return;
+  a = &im->crypto_algs[alg];
 
-  if (PREDICT_FALSE
-      (alg != em->per_thread_data[thread_index].last_decrypt_alg))
-    {
-      cipher = em->ipsec_proto_main_crypto_algs[alg].type;
-      em->per_thread_data[thread_index].last_decrypt_alg = alg;
-    }
+  if (PREDICT_FALSE (a->dec_op_type == VNET_CRYPTO_OP_NONE))
+    return;
 
-  EVP_DecryptInit_ex (ctx, cipher, NULL, key, iv);
+  op->op = a->dec_op_type;
+  op->iv = iv;
+  op->src = in;
+  op->dst = out;
+  op->len = in_len;
+  op->key = key;
 
-  EVP_DecryptUpdate (ctx, out, &out_len, in, in_len);
-  EVP_DecryptFinal_ex (ctx, out + out_len, &out_len);
+  vnet_crypto_process_ops (vm, op, 1);
 }
 
 always_inline uword
@@ -119,7 +112,6 @@ esp_decrypt_inline (vlib_main_t * vm,
 		    int is_ip6)
 {
   ipsec_main_t *im = &ipsec_main;
-  ipsec_proto_main_t *em = &ipsec_proto_main;
   u32 *from = vlib_frame_vector_args (from_frame);
   u32 n_left_from = from_frame->n_vectors;
   u32 new_bufs[VLIB_FRAME_SIZE];
@@ -189,15 +181,13 @@ esp_decrypt_inline (vlib_main_t * vm,
       if (PREDICT_TRUE (sa0->integ_alg != IPSEC_INTEG_ALG_NONE))
 	{
 	  u8 sig[64];
-	  int icv_size =
-	    em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
+	  int icv_size = im->integ_algs[sa0->integ_alg].trunc_size;
 	  clib_memset (sig, 0, sizeof (sig));
-	  u8 *icv =
-	    vlib_buffer_get_current (ib[0]) + ib[0]->current_length -
+	  u8 *icv = vlib_buffer_get_current (ib[0]) + ib[0]->current_length -
 	    icv_size;
 	  ib[0]->current_length -= icv_size;
 
-	  hmac_calc (sa0->integ_alg, sa0->integ_key.data,
+	  hmac_calc (vm, sa0->integ_alg, sa0->integ_key.data,
 		     sa0->integ_key.len, (u8 *) esp0,
 		     ib[0]->current_length, sig, sa0->use_esn, sa0->seq_hi);
 
@@ -227,10 +217,8 @@ esp_decrypt_inline (vlib_main_t * vm,
 	  (sa0->crypto_alg >= IPSEC_CRYPTO_ALG_DES_CBC &&
 	   sa0->crypto_alg <= IPSEC_CRYPTO_ALG_3DES_CBC))
 	{
-	  const int BLOCK_SIZE =
-	    em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].block_size;;
-	  const int IV_SIZE =
-	    em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].iv_size;
+	  const int BLOCK_SIZE = im->crypto_algs[sa0->crypto_alg].block_size;
+	  const int IV_SIZE = im->crypto_algs[sa0->crypto_alg].iv_size;
 	  esp_footer_t *f0;
 	  u8 ip_hdr_size = 0;
 
@@ -263,7 +251,7 @@ esp_decrypt_inline (vlib_main_t * vm,
 		}
 	    }
 
-	  esp_decrypt_cbc (sa0->crypto_alg,
+	  esp_decrypt_cbc (vm, sa0->crypto_alg,
 			   esp0->data + IV_SIZE,
 			   (u8 *) vlib_buffer_get_current (ob[0]) +
 			   ip_hdr_size, BLOCK_SIZE * blocks,
diff --git a/src/vnet/ipsec/esp_encrypt.c b/src/vnet/ipsec/esp_encrypt.c
index 080a3458926..37c2c953c87 100644
--- a/src/vnet/ipsec/esp_encrypt.c
+++ b/src/vnet/ipsec/esp_encrypt.c
@@ -20,6 +20,8 @@
 #include <vnet/ip/ip.h>
 #include <vnet/udp/udp.h>
 
+#include <vnet/crypto/crypto.h>
+
 #include <vnet/ipsec/ipsec.h>
 #include <vnet/ipsec/esp.h>
 
@@ -88,33 +90,26 @@ always_inline void
 esp_encrypt_cbc (vlib_main_t * vm, ipsec_crypto_alg_t alg,
 		 u8 * in, u8 * out, size_t in_len, u8 * key, u8 * iv)
 {
-  ipsec_proto_main_t *em = &ipsec_proto_main;
-  u32 thread_index = vm->thread_index;
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  EVP_CIPHER_CTX *ctx = em->per_thread_data[thread_index].encrypt_ctx;
-#else
-  EVP_CIPHER_CTX *ctx = &(em->per_thread_data[thread_index].encrypt_ctx);
-#endif
-  const EVP_CIPHER *cipher = NULL;
-  int out_len;
+  ipsec_main_t *im = &ipsec_main;
+  ipsec_main_crypto_alg_t *a;
+  vnet_crypto_op_t _op, *op = &_op;
 
   ASSERT (alg < IPSEC_CRYPTO_N_ALG);
 
-  if (PREDICT_FALSE
-      (em->ipsec_proto_main_crypto_algs[alg].type == IPSEC_CRYPTO_ALG_NONE))
-    return;
+  a = &im->crypto_algs[alg];
 
-  if (PREDICT_FALSE
-      (alg != em->per_thread_data[thread_index].last_encrypt_alg))
-    {
-      cipher = em->ipsec_proto_main_crypto_algs[alg].type;
-      em->per_thread_data[thread_index].last_encrypt_alg = alg;
-    }
+  if (PREDICT_FALSE (a->enc_op_type == VNET_CRYPTO_OP_NONE))
+    return;
 
-  EVP_EncryptInit_ex (ctx, cipher, NULL, key, iv);
+  op->op = a->enc_op_type;
+  op->flags = VNET_CRYPTO_OP_FLAG_INIT_IV;
+  op->iv = iv;
+  op->src = in;
+  op->dst = out;
+  op->len = in_len;
+  op->key = key;
 
-  EVP_EncryptUpdate (ctx, out, &out_len, in, in_len);
-  EVP_EncryptFinal_ex (ctx, out + out_len, &out_len);
+  vnet_crypto_process_ops (vm, op, 1);
 }
 
 always_inline uword
@@ -125,7 +120,6 @@ esp_encrypt_inline (vlib_main_t * vm,
   u32 *from = vlib_frame_vector_args (from_frame);
   u32 n_left_from = from_frame->n_vectors;
   ipsec_main_t *im = &ipsec_main;
-  ipsec_proto_main_t *em = &ipsec_proto_main;
   u32 new_bufs[VLIB_FRAME_SIZE];
   vlib_buffer_t *i_bufs[VLIB_FRAME_SIZE], **ib = i_bufs;
   vlib_buffer_t *o_bufs[VLIB_FRAME_SIZE], **ob = o_bufs;
@@ -288,10 +282,8 @@ esp_encrypt_inline (vlib_main_t * vm,
       if (PREDICT_TRUE (sa0->crypto_alg != IPSEC_CRYPTO_ALG_NONE))
 	{
 
-	  const int BLOCK_SIZE =
-	    em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].block_size;
-	  const int IV_SIZE =
-	    em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].iv_size;
+	  const int BLOCK_SIZE = im->crypto_algs[sa0->crypto_alg].block_size;
+	  const int IV_SIZE = im->crypto_algs[sa0->crypto_alg].iv_size;
 	  int blocks = 1 + (ib[0]->current_length + 1) / BLOCK_SIZE;
 
 	  /* pad packet in input buffer */
@@ -314,13 +306,12 @@ esp_encrypt_inline (vlib_main_t * vm,
 	  vnet_buffer (ob[0])->sw_if_index[VLIB_RX] =
 	    vnet_buffer (ib[0])->sw_if_index[VLIB_RX];
 
-	  u8 iv[em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].iv_size];
-	  RAND_bytes (iv, sizeof (iv));
+	  u8 *iv = vlib_buffer_get_current (ob[0]) + ip_udp_hdr_size +
+	    sizeof (esp_header_t);
 
 	  clib_memcpy_fast ((u8 *) vlib_buffer_get_current (ob[0]) +
 			    ip_udp_hdr_size + sizeof (esp_header_t), iv,
-			    em->ipsec_proto_main_crypto_algs[sa0->
-							     crypto_alg].iv_size);
+			    im->crypto_algs[sa0->crypto_alg].iv_size);
 
 	  esp_encrypt_cbc (vm, sa0->crypto_alg,
 			   (u8 *) vlib_buffer_get_current (ib[0]),
@@ -331,7 +322,7 @@ esp_encrypt_inline (vlib_main_t * vm,
 	}
 
       ob[0]->current_length +=
-	hmac_calc (sa0->integ_alg, sa0->integ_key.data,
+	hmac_calc (vm, sa0->integ_alg, sa0->integ_key.data,
 		   sa0->integ_key.len, (u8 *) o_esp0,
 		   ob[0]->current_length - ip_udp_hdr_size,
 		   vlib_buffer_get_current (ob[0]) + ob[0]->current_length,
diff --git a/src/vnet/ipsec/ipsec.c b/src/vnet/ipsec/ipsec.c
index ce93f32b429..e9d13a4e717 100644
--- a/src/vnet/ipsec/ipsec.c
+++ b/src/vnet/ipsec/ipsec.c
@@ -26,24 +26,6 @@
 #include <vnet/ipsec/ah.h>
 
 ipsec_main_t ipsec_main;
-ipsec_proto_main_t ipsec_proto_main;
-
-static void
-ipsec_rand_seed (void)
-{
-  struct
-  {
-    time_t time;
-    pid_t pid;
-    void *p;
-  } seed_data;
-
-  seed_data.time = time (NULL);
-  seed_data.pid = getpid ();
-  seed_data.p = (void *) &seed_data;
-
-  RAND_seed ((const void *) &seed_data, sizeof (seed_data));
-}
 
 static clib_error_t *
 ipsec_check_ah_support (ipsec_sa_t * sa)
@@ -240,8 +222,7 @@ ipsec_init (vlib_main_t * vm)
 {
   clib_error_t *error;
   ipsec_main_t *im = &ipsec_main;
-
-  ipsec_rand_seed ();
+  ipsec_main_crypto_alg_t *a;
 
   clib_memset (im, 0, sizeof (im[0]));
 
@@ -287,7 +268,55 @@ ipsec_init (vlib_main_t * vm)
   if ((error = vlib_call_init_function (vm, ipsec_tunnel_if_init)))
     return error;
 
-  ipsec_proto_init ();
+  vec_validate (im->crypto_algs, IPSEC_CRYPTO_N_ALG - 1);
+
+  a = im->crypto_algs + IPSEC_CRYPTO_ALG_DES_CBC;
+  a->enc_op_type = VNET_CRYPTO_OP_DES_CBC_ENC;
+  a->dec_op_type = VNET_CRYPTO_OP_DES_CBC_DEC;
+  a->iv_size = a->block_size = 8;
+
+  a = im->crypto_algs + IPSEC_CRYPTO_ALG_3DES_CBC;
+  a->enc_op_type = VNET_CRYPTO_OP_3DES_CBC_ENC;
+  a->dec_op_type = VNET_CRYPTO_OP_3DES_CBC_DEC;
+  a->iv_size = a->block_size = 8;
+
+  a = im->crypto_algs + IPSEC_CRYPTO_ALG_AES_CBC_128;
+  a->enc_op_type = VNET_CRYPTO_OP_AES_128_CBC_ENC;
+  a->dec_op_type = VNET_CRYPTO_OP_AES_128_CBC_DEC;
+  a->iv_size = a->block_size = 16;
+
+  a = im->crypto_algs + IPSEC_CRYPTO_ALG_AES_CBC_192;
+  a->enc_op_type = VNET_CRYPTO_OP_AES_192_CBC_ENC;
+  a->dec_op_type = VNET_CRYPTO_OP_AES_192_CBC_DEC;
+  a->iv_size = a->block_size = 16;
+
+  a = im->crypto_algs + IPSEC_CRYPTO_ALG_AES_CBC_256;
+  a->enc_op_type = VNET_CRYPTO_OP_AES_256_CBC_ENC;
+  a->dec_op_type = VNET_CRYPTO_OP_AES_256_CBC_DEC;
+  a->iv_size = a->block_size = 16;
+
+  vec_validate (im->integ_algs, IPSEC_INTEG_N_ALG - 1);
+  ipsec_main_integ_alg_t *i;
+
+  i = &im->integ_algs[IPSEC_INTEG_ALG_SHA1_96];
+  i->op_type = VNET_CRYPTO_OP_SHA1_HMAC;
+  i->trunc_size = 12;
+
+  i = &im->integ_algs[IPSEC_INTEG_ALG_SHA_256_96];
+  i->op_type = VNET_CRYPTO_OP_SHA1_HMAC;
+  i->trunc_size = 12;
+
+  i = &im->integ_algs[IPSEC_INTEG_ALG_SHA_256_128];
+  i->op_type = VNET_CRYPTO_OP_SHA256_HMAC;
+  i->trunc_size = 16;
+
+  i = &im->integ_algs[IPSEC_INTEG_ALG_SHA_384_192];
+  i->op_type = VNET_CRYPTO_OP_SHA384_HMAC;
+  i->trunc_size = 24;
+
+  i = &im->integ_algs[IPSEC_INTEG_ALG_SHA_512_256];
+  i->op_type = VNET_CRYPTO_OP_SHA512_HMAC;
+  i->trunc_size = 32;
 
   return 0;
 }
diff --git a/src/vnet/ipsec/ipsec.h b/src/vnet/ipsec/ipsec.h
index c877139ba12..e38a4a8771e 100644
--- a/src/vnet/ipsec/ipsec.h
+++ b/src/vnet/ipsec/ipsec.h
@@ -16,12 +16,9 @@
 #define __IPSEC_H__
 
 #include <vnet/ip/ip.h>
+#include <vnet/crypto/crypto.h>
 #include <vnet/feature/feature.h>
 
-#include <openssl/hmac.h>
-#include <openssl/rand.h>
-#include <openssl/evp.h>
-
 #include <vppinfra/types.h>
 #include <vppinfra/cache.h>
 
@@ -69,50 +66,17 @@ typedef struct
 
 typedef struct
 {
-  const EVP_CIPHER *type;
+  vnet_crypto_op_type_t enc_op_type;
+  vnet_crypto_op_type_t dec_op_type;
   u8 iv_size;
   u8 block_size;
-} ipsec_proto_main_crypto_alg_t;
+} ipsec_main_crypto_alg_t;
 
 typedef struct
 {
-  const EVP_MD *md;
+  vnet_crypto_op_type_t op_type;
   u8 trunc_size;
-} ipsec_proto_main_integ_alg_t;
-
-typedef struct
-{
-  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  EVP_CIPHER_CTX *encrypt_ctx;
-#else
-  EVP_CIPHER_CTX encrypt_ctx;
-#endif
-    CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  EVP_CIPHER_CTX *decrypt_ctx;
-#else
-  EVP_CIPHER_CTX decrypt_ctx;
-#endif
-    CLIB_CACHE_LINE_ALIGN_MARK (cacheline2);
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-  HMAC_CTX *hmac_ctx;
-#else
-  HMAC_CTX hmac_ctx;
-#endif
-  ipsec_crypto_alg_t last_encrypt_alg;
-  ipsec_crypto_alg_t last_decrypt_alg;
-  ipsec_integ_alg_t last_integ_alg;
-} ipsec_proto_main_per_thread_data_t;
-
-typedef struct
-{
-  ipsec_proto_main_crypto_alg_t *ipsec_proto_main_crypto_algs;
-  ipsec_proto_main_integ_alg_t *ipsec_proto_main_integ_algs;
-  ipsec_proto_main_per_thread_data_t *per_thread_data;
-} ipsec_proto_main_t;
-
-extern ipsec_proto_main_t ipsec_proto_main;
+} ipsec_main_integ_alg_t;
 
 typedef struct
 {
@@ -171,6 +135,12 @@ typedef struct
   u32 ah_default_backend;
   /* index of default esp backend */
   u32 esp_default_backend;
+
+  /* crypto alg data */
+  ipsec_main_crypto_alg_t *crypto_algs;
+
+  /* crypto integ data */
+  ipsec_main_integ_alg_t *integ_algs;
 } ipsec_main_t;
 
 extern ipsec_main_t ipsec_main;