coturn TURN server project
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coturn/src/client/ns_turn_msg_defs_new.h

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/*
* Copyright (C) 2011, 2012, 2013 Citrix Systems
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __LIB_TURN_MSG_DEFS_NEW__
#define __LIB_TURN_MSG_DEFS_NEW__
/***** POST-RFC5766 FRESH SPECS ***********/
/* Origin ==>> */
#define STUN_MAX_ORIGIN_SIZE (127)
#define STUN_ATTRIBUTE_ORIGIN (0x802F)
/* <<== Origin */
/* Bandwidth */
#define STUN_ATTRIBUTE_NEW_BANDWIDTH (0x8000 + STUN_ATTRIBUTE_BANDWIDTH)
/* <<== Bandwidth */
/* SHA AGILITY ==>> */
#define SHA1SIZEBYTES (20)
#define SHA256SIZEBYTES (32)
#define MAXSHASIZE (128)
enum _SHATYPE {
SHATYPE_ERROR = -1,
SHATYPE_DEFAULT=0,
SHATYPE_SHA1=SHATYPE_DEFAULT,
SHATYPE_SHA256
};
typedef enum _SHATYPE SHATYPE;
#define shatype_name(sht) ((sht == SHATYPE_SHA1) ? "SHA1" : ((sht == SHATYPE_SHA256) ? "SHA256" : "SHA UNKNOWN"))
#define SHA_TOO_WEAK_ERROR_CODE (426)
/* <<== SHA AGILITY */
/* OAUTH TOKEN ENC ALG ==> */
enum _ENC_ALG {
ENC_ALG_ERROR=-1,
ENC_ALG_DEFAULT=0,
AES_256_CBC=ENC_ALG_DEFAULT,
AES_128_CBC,
AEAD_AES_128_GCM,
AEAD_AES_256_GCM,
ENG_ALG_NUM
};
typedef enum _ENC_ALG ENC_ALG;
/* <<== OAUTH TOKEN ENC ALG */
/* OAUTH TOKEN AUTH ALG ==> */
enum _AUTH_ALG {
AUTH_ALG_ERROR = -1,
AUTH_ALG_UNDEFINED = 0,
AUTH_ALG_DEFAULT = 1,
AUTH_ALG_HMAC_SHA_256_128 = AUTH_ALG_DEFAULT,
AUTH_ALG_HMAC_SHA_1,
AUTH_ALG_HMAC_SHA_256
};
typedef enum _AUTH_ALG AUTH_ALG;
/* <<== OAUTH TOKEN AUTH ALG */
/**
* oAuth struct
*/
#define OAUTH_KID_SIZE (128)
#define OAUTH_HASH_FUNC_SIZE (64)
#define OAUTH_ALG_SIZE (64)
#define OAUTH_KEY_SIZE (256)
#define OAUTH_AEAD_NONCE_SIZE (12)
#define OAUTH_AEAD_TAG_SIZE (16)
#define OAUTH_DEFAULT_LIFETIME (0)
#define OAUTH_DEFAULT_TIMESTAMP (turn_time())
struct _oauth_key_data {
char kid[OAUTH_KID_SIZE+1];
char ikm_key[OAUTH_KEY_SIZE+1];
size_t ikm_key_size;
turn_time_t timestamp;
turn_time_t lifetime;
char hkdf_hash_func[OAUTH_HASH_FUNC_SIZE+1];
char as_rs_alg[OAUTH_ALG_SIZE+1];
char as_rs_key[OAUTH_KEY_SIZE+1];
size_t as_rs_key_size;
char auth_alg[OAUTH_ALG_SIZE+1];
char auth_key[OAUTH_KEY_SIZE+1];
size_t auth_key_size;
};
typedef struct _oauth_key_data oauth_key_data;
struct _oauth_key {
char kid[OAUTH_KID_SIZE+1];
char ikm_key[OAUTH_KEY_SIZE+1];
size_t ikm_key_size;
turn_time_t timestamp;
turn_time_t lifetime;
SHATYPE hkdf_hash_func;
ENC_ALG as_rs_alg;
char as_rs_key[OAUTH_KEY_SIZE+1];
size_t as_rs_key_size;
AUTH_ALG auth_alg;
char auth_key[OAUTH_KEY_SIZE+1];
size_t auth_key_size;
};
typedef struct _oauth_key oauth_key;
struct _oauth_encrypted_block {
uint16_t key_length;
uint8_t mac_key[MAXSHASIZE];
uint64_t timestamp;
uint32_t lifetime;
};
typedef struct _oauth_encrypted_block oauth_encrypted_block;
struct _oauth_token {
oauth_encrypted_block enc_block;
uint8_t mac[MAXSHASIZE];
size_t mac_size;
};
typedef struct _oauth_token oauth_token;
#define MAX_ENCODED_OAUTH_TOKEN_SIZE (1024)
struct _encoded_oauth_token {
char token[MAX_ENCODED_OAUTH_TOKEN_SIZE];
size_t size;
};
typedef struct _encoded_oauth_token encoded_oauth_token;
#endif //__LIB_TURN_MSG_DEFS_NEW__