1 files changed, 132 insertions, 0 deletions
diff --git a/vnet/vnet/sr/sr.h b/vnet/vnet/sr/sr.h
new file mode 100644
index 00000000000..3c6d981d17e
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+++ b/vnet/vnet/sr/sr.h
@@ -0,0 +1,132 @@
+/*
+ * 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 included_vnet_sr_h
+#define included_vnet_sr_h
+
+#include <vnet/vnet.h>
+#include <vnet/sr/sr_packet.h>
+#include <vnet/ip/ip6_packet.h>
+
+#include <openssl/opensslconf.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/crypto.h>
+#include <openssl/sha.h>
+#include <openssl/opensslv.h>
+#include <openssl/hmac.h>
+
+typedef struct {
+  ip6_address_t src;
+  ip6_address_t dst;
+} ip6_sr_tunnel_key_t;
+
+typedef struct {
+  /* src, dst address */
+  ip6_sr_tunnel_key_t key;
+
+  /* mask width for FIB entry */
+  u32 dst_mask_width;
+
+  /* first hop, to save 1 elt in the segment list */
+  ip6_address_t first_hop;
+
+  /* Fib indices */
+  u32 rx_fib_index;
+  u32 tx_fib_index;
+
+  /* The actual ip6 sr header */
+  u8 * rewrite;
+} ip6_sr_tunnel_t;
+
+typedef struct {
+  u8 * shared_secret;
+} ip6_sr_hmac_key_t;
+
+typedef struct {
+  /* Key (header imposition case) */
+  ip6_address_t *src_address;
+  ip6_address_t *dst_address;
+  u32 dst_mask_width;
+  u32 rx_table_id;
+  u32 tx_table_id;
+
+  /* segment list, when inserting an ip6 SR header*/
+  ip6_address_t *segments;
+
+  /* 
+   * "Tag" list, aka segments inserted at the end of the list,
+   * past last_seg
+   */
+  ip6_address_t *tags;
+     
+  /* Shared secret => generate SHA-256 HMAC security fields */
+  u8 * shared_secret;
+
+  /* Flags, e.g. cleanup, policy-list flags */
+  u16 flags_net_byte_order;
+
+  /* Delete the tunnnel? */
+  u8 is_del;
+} ip6_sr_add_del_tunnel_args_t;
+
+typedef struct {
+  /* pool of tunnel instances, sr entry only */
+  ip6_sr_tunnel_t *tunnels;
+
+  /* find an sr "tunnel" by its outer-IP src/dst */
+  uword * tunnel_index_by_key;
+  
+  /* ip6-lookup next index for imposition FIB entries */
+  u32 ip6_lookup_sr_next_index;
+
+  /* hmac key id by shared secret */
+  uword * hmac_key_by_shared_secret;
+
+  /* ip6-rewrite next index for reinstalling the original dst address */
+  u32 ip6_rewrite_sr_next_index;
+
+  /* application API callback */
+  void *sr_local_cb;
+
+  /* validate hmac keys */
+  u8 validate_hmac;
+
+  /* pool of hmac keys */
+  ip6_sr_hmac_key_t * hmac_keys;
+
+  /* Openssl vbls */
+  EVP_MD * md;
+  HMAC_CTX * hmac_ctx;
+
+  /* enable debug spew */
+  u8 is_debug;
+
+  /* convenience */
+  vlib_main_t * vlib_main;
+  vnet_main_t * vnet_main;
+} ip6_sr_main_t;
+
+ip6_sr_main_t sr_main;
+
+format_function_t format_ip6_sr_header;
+format_function_t format_ip6_sr_header_with_length;
+
+vlib_node_registration_t ip6_sr_input_node;
+
+int ip6_sr_add_del_tunnel (ip6_sr_add_del_tunnel_args_t * a);
+void vnet_register_sr_app_callback (void *cb);
+
+#endif /* included_vnet_sr_h */