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SRTP profiles definition use macros only

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Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
This commit is contained in:
Johan Pascal
2020-09-22 12:25:52 +02:00
parent 4f099264b5
commit 43f9490a52
8 changed files with 105 additions and 149 deletions
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43
include/mbedtls/ssl.h
View File

@ -414,6 +414,7 @@
#define MBEDTLS_TLS_EXT_RENEGOTIATION_INFO 0xFF01
#if defined(MBEDTLS_SSL_DTLS_SRTP)
/*
* Use_srtp extension protection profiles values as defined in
* http://www.iana.org/assignments/srtp-protection/srtp-protection.xhtml
@ -422,6 +423,9 @@
#define MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32 0x0002
#define MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80 0x0005
#define MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32 0x0006
/* This one is not iana defined, but for code readability. */
#define MBEDTLS_TLS_SRTP_UNSET 0x0000
#endif /* MBEDTLS_SSL_DTLS_SRTP*/
/*
* Size defines
@ -870,24 +874,15 @@ typedef void mbedtls_ssl_async_cancel_t( mbedtls_ssl_context *ssl );
#define MBEDTLS_TLS_SRTP_MAX_KEY_MATERIAL_LENGTH 60
#define MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH 255
/*
* List of SRTP profiles for DTLS-SRTP
* For code readability use a typedef for DTLS-SRTP profiles
* The supported profiles are defines as macro above:
* MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80
* MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32
* MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80
* MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32
* MBEDTLS_TLS_SRTP_UNSET
*/
typedef enum
{
MBEDTLS_SRTP_UNSET_PROFILE,
MBEDTLS_SRTP_AES128_CM_HMAC_SHA1_80,
MBEDTLS_SRTP_AES128_CM_HMAC_SHA1_32,
MBEDTLS_SRTP_NULL_HMAC_SHA1_80,
MBEDTLS_SRTP_NULL_HMAC_SHA1_32,
}
mbedtls_ssl_srtp_profile;
typedef struct
{
const mbedtls_ssl_srtp_profile profile;
const char *name;
}
mbedtls_ssl_srtp_profile_info;
typedef uint16_t mbedtls_ssl_srtp_profile;
typedef struct mbedtls_dtls_srtp_info_t
{
@ -3248,23 +3243,11 @@ int mbedtls_ssl_dtls_srtp_set_mki_value( mbedtls_ssl_context *ssl,
* \param ssl The SSL context to query.
*
* \return The DTLS SRTP protection profile in use.
* \return #MBEDTLS_SRTP_UNSET_PROFILE if the use of SRTP was not negotiated
* \return #MBEDTLS_TLS_SRTP_UNSET if the use of SRTP was not negotiated
* or peer's Hello packet was not parsed yet.
*/
mbedtls_ssl_srtp_profile mbedtls_ssl_get_dtls_srtp_protection_profile
( const mbedtls_ssl_context *ssl );
/**
* \brief Utility function to get information on DTLS-SRTP profile.
*
* \param profile The DTLS-SRTP profile id to get info on.
*
* \return The address of the SRTP profile information structure on
* success.
* \return \c NULL if the protection profile \p profile was not found.
*/
const mbedtls_ssl_srtp_profile_info *mbedtls_ssl_dtls_srtp_profile_info_from_id
( mbedtls_ssl_srtp_profile profile );
#endif /* MBEDTLS_SSL_DTLS_SRTP */
/**

43
include/mbedtls/ssl_internal.h
View File

@ -1096,50 +1096,23 @@ int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl,
#endif
#if defined(MBEDTLS_SSL_DTLS_SRTP)
static inline uint16_t mbedtls_ssl_get_srtp_profile_iana_value
( mbedtls_ssl_srtp_profile profile )
{
uint16_t profile_value = 0xffff;
switch( profile )
{
case MBEDTLS_SRTP_AES128_CM_HMAC_SHA1_80:
profile_value = MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80;
break;
case MBEDTLS_SRTP_AES128_CM_HMAC_SHA1_32:
profile_value = MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32;
break;
case MBEDTLS_SRTP_NULL_HMAC_SHA1_80:
profile_value = MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80;
break;
case MBEDTLS_SRTP_NULL_HMAC_SHA1_32:
profile_value = MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32;
break;
default: break;
}
return( profile_value );
}
#if defined(MBEDTLS_DEBUG_C)
const char *mbedtls_ssl_get_srtp_profile_as_string ( mbedtls_ssl_srtp_profile profile );
#endif /* MBEDTLS_DEBUG_C */
static inline mbedtls_ssl_srtp_profile mbedtls_ssl_get_srtp_profile_value
( uint16_t srtp_iana_value )
static inline mbedtls_ssl_srtp_profile mbedtls_ssl_check_srtp_profile_value
( const uint16_t srtp_profile_value )
{
mbedtls_ssl_srtp_profile profile_value = MBEDTLS_SRTP_UNSET_PROFILE;
switch( srtp_iana_value )
switch( srtp_profile_value )
{
case MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80:
profile_value = MBEDTLS_SRTP_AES128_CM_HMAC_SHA1_80;
break;
case MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32:
profile_value = MBEDTLS_SRTP_AES128_CM_HMAC_SHA1_32;
break;
case MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80:
profile_value = MBEDTLS_SRTP_NULL_HMAC_SHA1_80;
break;
case MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32:
profile_value = MBEDTLS_SRTP_NULL_HMAC_SHA1_32;
break;
return srtp_profile_value;
default: break;
}
return( profile_value );
return( MBEDTLS_TLS_SRTP_UNSET );
}
#endif