1 files changed, 321 insertions, 0 deletions
diff --git a/src/vnet/ipsec/ikev2_priv.h b/src/vnet/ipsec/ikev2_priv.h
new file mode 100644
index 00000000..9f67ad2a
--- /dev/null
+++ b/src/vnet/ipsec/ikev2_priv.h
@@ -0,0 +1,321 @@
+/*
+ * 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_ikev2_priv_h__
+#define __included_ikev2_priv_h__
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+
+#include <vnet/ipsec/ikev2.h>
+
+#include <vppinfra/hash.h>
+#include <vppinfra/elog.h>
+#include <vppinfra/error.h>
+
+#include <openssl/rand.h>
+#include <openssl/dh.h>
+#include <openssl/hmac.h>
+#include <openssl/evp.h>
+
+#define IKEV2_DEBUG_PAYLOAD 1
+
+#if IKEV2_DEBUG_PAYLOAD == 1
+#define DBG_PLD(my_args...) clib_warning(my_args)
+#else
+#define DBG_PLD(my_args...)
+#endif
+
+typedef enum
+{
+  IKEV2_STATE_UNKNOWN,
+  IKEV2_STATE_SA_INIT,
+  IKEV2_STATE_DELETED,
+  IKEV2_STATE_AUTH_FAILED,
+  IKEV2_STATE_AUTHENTICATED,
+  IKEV2_STATE_NOTIFY_AND_DELETE,
+  IKEV2_STATE_TS_UNACCEPTABLE,
+  IKEV2_STATE_NO_PROPOSAL_CHOSEN,
+} ikev2_state_t;
+
+typedef struct
+{
+  ikev2_auth_method_t method:8;
+  u8 *data;
+  u8 hex;			/* hex encoding of the shared secret */
+  EVP_PKEY *key;
+} ikev2_auth_t;
+
+typedef enum
+{
+  IKEV2_DH_GROUP_MODP = 0,
+  IKEV2_DH_GROUP_ECP = 1,
+} ikev2_dh_group_t;
+
+typedef struct
+{
+  ikev2_transform_type_t type;
+  union
+  {
+    u16 transform_id;
+    ikev2_transform_encr_type_t encr_type:16;
+    ikev2_transform_prf_type_t prf_type:16;
+    ikev2_transform_integ_type_t integ_type:16;
+    ikev2_transform_dh_type_t dh_type:16;
+    ikev2_transform_esn_type_t esn_type:16;
+  };
+  u8 *attrs;
+  u16 key_len;
+  u16 key_trunc;
+  u16 block_size;
+  u8 dh_group;
+  int nid;
+  const char *dh_p;
+  const char *dh_g;
+  const void *md;
+  const void *cipher;
+} ikev2_sa_transform_t;
+
+typedef struct
+{
+  u8 proposal_num;
+  ikev2_protocol_id_t protocol_id:8;
+  u32 spi;
+  ikev2_sa_transform_t *transforms;
+} ikev2_sa_proposal_t;
+
+typedef struct
+{
+  u8 ts_type;
+  u8 protocol_id;
+  u16 selector_len;
+  u16 start_port;
+  u16 end_port;
+  ip4_address_t start_addr;
+  ip4_address_t end_addr;
+} ikev2_ts_t;
+
+typedef struct
+{
+  ikev2_id_type_t type:8;
+  u8 *data;
+} ikev2_id_t;
+
+typedef struct
+{
+  /* sa proposals vectors */
+  ikev2_sa_proposal_t *i_proposals;
+  ikev2_sa_proposal_t *r_proposals;
+
+  /* Traffic Selectors */
+  ikev2_ts_t *tsi;
+  ikev2_ts_t *tsr;
+
+  /* keys */
+  u8 *sk_ai;
+  u8 *sk_ar;
+  u8 *sk_ei;
+  u8 *sk_er;
+} ikev2_child_sa_t;
+
+typedef struct
+{
+  u8 protocol_id;
+  u32 spi;			/*for ESP and AH SPI size is 4, for IKE size is 0 */
+} ikev2_delete_t;
+
+typedef struct
+{
+  u8 protocol_id;
+  u32 spi;
+  ikev2_sa_proposal_t *i_proposal;
+  ikev2_sa_proposal_t *r_proposal;
+  ikev2_ts_t *tsi;
+  ikev2_ts_t *tsr;
+} ikev2_rekey_t;
+
+typedef struct
+{
+  u16 msg_type;
+  u8 protocol_id;
+  u32 spi;
+  u8 *data;
+} ikev2_notify_t;
+
+
+typedef struct
+{
+  ikev2_state_t state;
+  u8 unsupported_cp;
+  u8 initial_contact;
+  ip4_address_t iaddr;
+  ip4_address_t raddr;
+  u64 ispi;
+  u64 rspi;
+  u8 *i_nonce;
+  u8 *r_nonce;
+
+  /* DH data */
+  u16 dh_group;
+  u8 *dh_shared_key;
+  u8 *i_dh_data;
+  u8 *r_dh_data;
+
+  /* sa proposals vectors */
+  ikev2_sa_proposal_t *i_proposals;
+  ikev2_sa_proposal_t *r_proposals;
+
+  /* keys */
+  u8 *sk_d;
+  u8 *sk_ai;
+  u8 *sk_ar;
+  u8 *sk_ei;
+  u8 *sk_er;
+  u8 *sk_pi;
+  u8 *sk_pr;
+
+  /* auth */
+  ikev2_auth_t i_auth;
+  ikev2_auth_t r_auth;
+
+  /* ID */
+  ikev2_id_t i_id;
+  ikev2_id_t r_id;
+
+  /* pending deletes */
+  ikev2_delete_t *del;
+
+  /* pending rekeyings */
+  ikev2_rekey_t *rekey;
+
+  /* packet data */
+  u8 *last_sa_init_req_packet_data;
+  u8 *last_sa_init_res_packet_data;
+
+  /* retransmit */
+  u32 last_msg_id;
+  u8 *last_res_packet_data;
+
+  ikev2_child_sa_t *childs;
+} ikev2_sa_t;
+
+typedef struct
+{
+  u8 *name;
+  u8 is_enabled;
+
+  ikev2_auth_t auth;
+  ikev2_id_t loc_id;
+  ikev2_id_t rem_id;
+  ikev2_ts_t loc_ts;
+  ikev2_ts_t rem_ts;
+} ikev2_profile_t;
+
+typedef struct
+{
+  /* pool of IKEv2 Security Associations */
+  ikev2_sa_t *sas;
+
+  /* hash */
+  uword *sa_by_rspi;
+} ikev2_main_per_thread_data_t;
+
+typedef struct
+{
+  /* pool of IKEv2 profiles */
+  ikev2_profile_t *profiles;
+
+  /* vector of supported transform types */
+  ikev2_sa_transform_t *supported_transforms;
+
+  /* hash */
+  mhash_t profile_index_by_name;
+
+  /* local private key */
+  EVP_PKEY *pkey;
+
+  /* convenience */
+  vlib_main_t *vlib_main;
+  vnet_main_t *vnet_main;
+
+  ikev2_main_per_thread_data_t *per_thread_data;
+
+} ikev2_main_t;
+
+ikev2_main_t ikev2_main;
+
+void ikev2_sa_free_proposal_vector (ikev2_sa_proposal_t ** v);
+ikev2_sa_transform_t *ikev2_sa_get_td_for_type (ikev2_sa_proposal_t * p,
+						ikev2_transform_type_t type);
+
+/* ikev2_crypto.c */
+v8 *ikev2_calc_prf (ikev2_sa_transform_t * tr, v8 * key, v8 * data);
+u8 *ikev2_calc_prfplus (ikev2_sa_transform_t * tr, u8 * key, u8 * seed,
+			int len);
+v8 *ikev2_calc_integr (ikev2_sa_transform_t * tr, v8 * key, u8 * data,
+		       int len);
+v8 *ikev2_decrypt_data (ikev2_sa_t * sa, u8 * data, int len);
+int ikev2_encrypt_data (ikev2_sa_t * sa, v8 * src, u8 * dst);
+void ikev2_generate_dh (ikev2_sa_t * sa, ikev2_sa_transform_t * t);
+int ikev2_verify_sign (EVP_PKEY * pkey, u8 * sigbuf, u8 * data);
+u8 *ikev2_calc_sign (EVP_PKEY * pkey, u8 * data);
+EVP_PKEY *ikev2_load_cert_file (u8 * file);
+EVP_PKEY *ikev2_load_key_file (u8 * file);
+void ikev2_crypto_init (ikev2_main_t * km);
+
+/* ikev2_payload.c */
+typedef struct
+{
+  u8 first_payload_type;
+  u16 last_hdr_off;
+  u8 *data;
+} ikev2_payload_chain_t;
+
+#define ikev2_payload_new_chain(V) vec_validate (V, 0)
+#define ikev2_payload_destroy_chain(V) do { \
+  vec_free((V)->data);                 \
+  vec_free(V);                         \
+} while (0)
+
+void ikev2_payload_add_notify (ikev2_payload_chain_t * c, u16 msg_type,
+			       u8 * data);
+void ikev2_payload_add_sa (ikev2_payload_chain_t * c,
+			   ikev2_sa_proposal_t * proposals);
+void ikev2_payload_add_ke (ikev2_payload_chain_t * c, u16 dh_group,
+			   u8 * dh_data);
+void ikev2_payload_add_nonce (ikev2_payload_chain_t * c, u8 * nonce);
+void ikev2_payload_add_id (ikev2_payload_chain_t * c, ikev2_id_t * id,
+			   u8 type);
+void ikev2_payload_add_auth (ikev2_payload_chain_t * c, ikev2_auth_t * auth);
+void ikev2_payload_add_ts (ikev2_payload_chain_t * c, ikev2_ts_t * ts,
+			   u8 type);
+void ikev2_payload_add_delete (ikev2_payload_chain_t * c, ikev2_delete_t * d);
+void ikev2_payload_chain_add_padding (ikev2_payload_chain_t * c, int bs);
+void ikev2_parse_vendor_payload (ike_payload_header_t * ikep);
+ikev2_sa_proposal_t *ikev2_parse_sa_payload (ike_payload_header_t * ikep);
+ikev2_ts_t *ikev2_parse_ts_payload (ike_payload_header_t * ikep);
+ikev2_delete_t *ikev2_parse_delete_payload (ike_payload_header_t * ikep);
+ikev2_notify_t *ikev2_parse_notify_payload (ike_payload_header_t * ikep);
+
+#endif /* __included_ikev2_priv_h__ */
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */