plugins: odp: Add ODP-IPsec node

Based heavily on the src/vnet/ipsec.

Reuses the pure software VPP IPsec implementation
CLI command. To use enable-odp-crypto needs to be
present in the odp section of startup configuration,
like this:

odp {
	enable-odp-crypto
}

Currenlty only IPv4 is supported, and only in transport
mode.

Authentication headers are not supported, this limitation
is inherited from VPP.

Supported crypto algorithms are
aes-cbc-128 for encryption, and
sha-512-256, sha-256-128, sha1-96 for authentication

Change-Id: I08c66f96a73d8cb4ef1095f181ddf47506abc39a
Signed-off-by: Szymon Sliwa <szs@semihalf.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/src/plugins/odp/ipsec/ipsec.h b/src/plugins/odp/ipsec/ipsec.h
new file mode 100644
index 00000000..0f3ceb86
--- /dev/null
+++ b/src/plugins/odp/ipsec/ipsec.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2015 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 __ODP_IPSEC_H__
+#define __ODP_IPSEC_H__
+
+#include <odp_api.h>
+#include <vnet/ipsec/ipsec.h>
+
+typedef struct
+{
+  odp_crypto_session_t sess;
+  u32 digest_size;
+  u8 iv_data[16];
+  u32 iv_len;
+  u32 key_size;
+} sa_data_t;
+
+typedef struct
+{
+  sa_data_t *sa_sess_d[2];
+  odp_queue_t post_encrypt, post_decrypt;
+} odp_crypto_worker_main_t;
+
+typedef struct
+{
+  odp_crypto_worker_main_t *workers;
+} odp_crypto_main_t;
+
+extern vlib_node_registration_t odp_crypto_input_node;
+extern odp_crypto_main_t odp_crypto_main;
+extern u8 enable_odp_crypto;
+
+int create_sess (ipsec_sa_t * sa, sa_data_t * sess, int is_outbound);
+
+clib_error_t *ipsec_init (vlib_main_t * vm);
+
+#endif /* __IPSEC_H__ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */