Remove prototype of static functions
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu
parent
9176c3ad8c
commit
92c6b402d7
1 changed files with 147 additions and 171 deletions
|
|
@ -32,135 +32,82 @@
|
||||||
|
|
||||||
#define CLIENT_HELLO_RAND_BYTES_LEN 32
|
#define CLIENT_HELLO_RAND_BYTES_LEN 32
|
||||||
#define CLIENT_HELLO_VERSION_LEN 2
|
#define CLIENT_HELLO_VERSION_LEN 2
|
||||||
/* Main entry point; orchestrates the other functions */
|
|
||||||
static int ssl_tls13_write_client_hello( mbedtls_ssl_context *ssl );
|
|
||||||
|
|
||||||
int mbedtls_ssl_tls13_handshake_client_step( mbedtls_ssl_context *ssl )
|
|
||||||
{
|
|
||||||
int ret = 0;
|
|
||||||
|
|
||||||
if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL )
|
|
||||||
{
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Handshake completed but ssl->handshake is NULL.\n" ) );
|
|
||||||
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
|
|
||||||
}
|
|
||||||
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 2, ( "client state: %d", ssl->state ) );
|
|
||||||
|
|
||||||
switch( ssl->state )
|
|
||||||
{
|
|
||||||
/*
|
|
||||||
* ssl->state is initialized as HELLO_REQUEST. It is same
|
|
||||||
* with CLIENT_HELLO status
|
|
||||||
*/
|
|
||||||
case MBEDTLS_SSL_HELLO_REQUEST:
|
|
||||||
case MBEDTLS_SSL_CLIENT_HELLO:
|
|
||||||
ret = ssl_tls13_write_client_hello( ssl );
|
|
||||||
break;
|
|
||||||
|
|
||||||
case MBEDTLS_SSL_SERVER_HELLO:
|
|
||||||
// Stop here : we haven't finished whole flow
|
|
||||||
ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
|
|
||||||
mbedtls_ssl_handshake_set_state( ssl, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS );
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
|
|
||||||
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
|
|
||||||
}
|
|
||||||
|
|
||||||
return( ret );
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static int ssl_tls13_prepare_client_hello( mbedtls_ssl_context *ssl );
|
|
||||||
static int ssl_tls13_write_exts_client_hello( mbedtls_ssl_context *ssl,
|
|
||||||
unsigned char *buf, size_t buflen,
|
|
||||||
size_t *len_with_binders );
|
|
||||||
static int ssl_tls13_finalize_client_hello( mbedtls_ssl_context *ssl );
|
|
||||||
|
|
||||||
static int ssl_tls13_write_client_hello( mbedtls_ssl_context *ssl )
|
|
||||||
{
|
|
||||||
int ret = 0;
|
|
||||||
unsigned char *buf;
|
|
||||||
size_t buf_len, msg_len;
|
|
||||||
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client hello" ) );
|
|
||||||
|
|
||||||
MBEDTLS_SSL_PROC_CHK( ssl_tls13_prepare_client_hello, ( ssl ) );
|
|
||||||
|
|
||||||
MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_tls13_start_handshake_msg,
|
|
||||||
( ssl, MBEDTLS_SSL_HS_CLIENT_HELLO,
|
|
||||||
&buf, &buf_len ) );
|
|
||||||
|
|
||||||
MBEDTLS_SSL_PROC_CHK( ssl_tls13_write_exts_client_hello,
|
|
||||||
( ssl, buf, buf_len, &msg_len ) );
|
|
||||||
|
|
||||||
mbedtls_ssl_tls13_add_hs_hdr_to_checksum( ssl, MBEDTLS_SSL_HS_CLIENT_HELLO,
|
|
||||||
msg_len );
|
|
||||||
ssl->handshake->update_checksum( ssl, buf, 0 );
|
|
||||||
|
|
||||||
MBEDTLS_SSL_PROC_CHK( ssl_tls13_finalize_client_hello, ( ssl ) );
|
|
||||||
MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_tls13_finish_handshake_msg,
|
|
||||||
( ssl, buf_len, msg_len ) );
|
|
||||||
|
|
||||||
cleanup:
|
|
||||||
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client hello" ) );
|
|
||||||
/* client_hello_process haven't finished */
|
|
||||||
ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int ssl_tls13_prepare_client_hello( mbedtls_ssl_context *ssl )
|
|
||||||
{
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
if( ssl->conf->f_rng == NULL )
|
|
||||||
{
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided" ) );
|
|
||||||
return( MBEDTLS_ERR_SSL_NO_RNG );
|
|
||||||
}
|
|
||||||
|
|
||||||
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng,
|
|
||||||
ssl->handshake->randbytes,
|
|
||||||
CLIENT_HELLO_RAND_BYTES_LEN ) ) != 0 )
|
|
||||||
{
|
|
||||||
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_generate_random", ret );
|
|
||||||
return( ret );
|
|
||||||
}
|
|
||||||
|
|
||||||
return( 0 );
|
|
||||||
}
|
|
||||||
|
|
||||||
static int ssl_tls13_finalize_client_hello( mbedtls_ssl_context* ssl )
|
|
||||||
{
|
|
||||||
mbedtls_ssl_handshake_set_state( ssl, MBEDTLS_SSL_SERVER_HELLO );
|
|
||||||
|
|
||||||
return( 0 );
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Write extensions */
|
/* Write extensions */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* ssl_tls13_write_supported_versions_ext():
|
||||||
|
*
|
||||||
|
* struct {
|
||||||
|
* ProtocolVersion versions<2..254>;
|
||||||
|
* } SupportedVersions;
|
||||||
|
*/
|
||||||
static int ssl_tls13_write_supported_versions_ext( mbedtls_ssl_context *ssl,
|
static int ssl_tls13_write_supported_versions_ext( mbedtls_ssl_context *ssl,
|
||||||
unsigned char *buf,
|
unsigned char *buf,
|
||||||
unsigned char *end,
|
unsigned char *end,
|
||||||
size_t *olen );
|
size_t *olen )
|
||||||
|
{
|
||||||
|
unsigned char *p = buf;
|
||||||
|
|
||||||
|
*olen = 0;
|
||||||
|
|
||||||
|
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported version extension" ) );
|
||||||
|
|
||||||
|
MBEDTLS_SSL_CHK_BUF_PTR( p, end, 7 );
|
||||||
|
|
||||||
|
MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_SUPPORTED_VERSIONS, p, 0);
|
||||||
|
|
||||||
|
/* total length */
|
||||||
|
MBEDTLS_PUT_UINT16_BE( 3, p, 2);
|
||||||
|
p+=4;
|
||||||
|
|
||||||
|
/* length of next field */
|
||||||
|
*p++ = 0x2;
|
||||||
|
|
||||||
|
/* This implementation only supports a single TLS version, and only
|
||||||
|
* advertises a single value.
|
||||||
|
*/
|
||||||
|
mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver,
|
||||||
|
ssl->conf->transport, p );
|
||||||
|
|
||||||
|
MBEDTLS_SSL_DEBUG_MSG( 3, ( "supported version: [%d:%d]",
|
||||||
|
ssl->conf->max_major_ver, ssl->conf->max_minor_ver ) );
|
||||||
|
|
||||||
|
*olen = 7;
|
||||||
|
|
||||||
|
return( 0 );
|
||||||
|
}
|
||||||
|
|
||||||
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
|
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
|
||||||
|
|
||||||
static int ssl_tls13_write_supported_groups_ext( mbedtls_ssl_context *ssl,
|
static int ssl_tls13_write_supported_groups_ext( mbedtls_ssl_context *ssl,
|
||||||
unsigned char *buf,
|
unsigned char *buf,
|
||||||
unsigned char *end,
|
unsigned char *end,
|
||||||
size_t *olen );
|
size_t *olen )
|
||||||
|
{
|
||||||
|
((void) ssl);
|
||||||
|
((void) buf);
|
||||||
|
((void) end);
|
||||||
|
((void) olen);
|
||||||
|
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
|
||||||
|
}
|
||||||
|
|
||||||
static int ssl_tls13_write_key_shares_ext( mbedtls_ssl_context *ssl,
|
static int ssl_tls13_write_key_shares_ext( mbedtls_ssl_context *ssl,
|
||||||
unsigned char *buf,
|
unsigned char *buf,
|
||||||
unsigned char *end,
|
unsigned char *end,
|
||||||
size_t *olen );
|
size_t *olen )
|
||||||
|
{
|
||||||
|
((void) ssl);
|
||||||
|
((void) buf);
|
||||||
|
((void) end);
|
||||||
|
((void) olen);
|
||||||
|
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
|
||||||
|
}
|
||||||
|
|
||||||
#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
|
#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
|
||||||
|
|
||||||
|
/* Functions for ClientHello */
|
||||||
|
|
||||||
static int ssl_tls13_write_exts_client_hello( mbedtls_ssl_context *ssl,
|
static int ssl_tls13_write_exts_client_hello( mbedtls_ssl_context *ssl,
|
||||||
unsigned char *buf, size_t buflen,
|
unsigned char *buf, size_t buflen,
|
||||||
size_t *len_with_binders )
|
size_t *len_with_binders )
|
||||||
|
|
@ -344,7 +291,9 @@ static int ssl_tls13_write_exts_client_hello( mbedtls_ssl_context *ssl,
|
||||||
* For cTLS we only need to provide it if there is more than one version
|
* For cTLS we only need to provide it if there is more than one version
|
||||||
* and currently there is only one.
|
* and currently there is only one.
|
||||||
*/
|
*/
|
||||||
ssl_tls13_write_supported_versions_ext( ssl, buf, end, &cur_ext_len );
|
ret = ssl_tls13_write_supported_versions_ext( ssl, buf, end, &cur_ext_len );
|
||||||
|
if( ret != 0 )
|
||||||
|
return( ret );
|
||||||
total_ext_len += cur_ext_len;
|
total_ext_len += cur_ext_len;
|
||||||
buf += cur_ext_len;
|
buf += cur_ext_len;
|
||||||
|
|
||||||
|
|
@ -400,77 +349,104 @@ static int ssl_tls13_write_exts_client_hello( mbedtls_ssl_context *ssl,
|
||||||
return( 0 );
|
return( 0 );
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
static int ssl_tls13_finalize_client_hello( mbedtls_ssl_context* ssl )
|
||||||
* ssl_tls13_write_supported_versions_ext():
|
|
||||||
*
|
|
||||||
* struct {
|
|
||||||
* ProtocolVersion versions<2..254>;
|
|
||||||
* } SupportedVersions;
|
|
||||||
*/
|
|
||||||
static int ssl_tls13_write_supported_versions_ext( mbedtls_ssl_context *ssl,
|
|
||||||
unsigned char *buf,
|
|
||||||
unsigned char *end,
|
|
||||||
size_t *olen )
|
|
||||||
{
|
{
|
||||||
unsigned char *p = buf;
|
mbedtls_ssl_handshake_set_state( ssl, MBEDTLS_SSL_SERVER_HELLO );
|
||||||
|
return( 0 );
|
||||||
|
}
|
||||||
|
|
||||||
*olen = 0;
|
static int ssl_tls13_prepare_client_hello( mbedtls_ssl_context *ssl )
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported version extension" ) );
|
if( ssl->conf->f_rng == NULL )
|
||||||
|
{
|
||||||
|
MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided" ) );
|
||||||
|
return( MBEDTLS_ERR_SSL_NO_RNG );
|
||||||
|
}
|
||||||
|
|
||||||
MBEDTLS_SSL_CHK_BUF_PTR( p, end, 7 );
|
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng,
|
||||||
|
ssl->handshake->randbytes,
|
||||||
MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_SUPPORTED_VERSIONS, p, 0);
|
CLIENT_HELLO_RAND_BYTES_LEN ) ) != 0 )
|
||||||
|
{
|
||||||
/* total length */
|
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_generate_random", ret );
|
||||||
MBEDTLS_PUT_UINT16_BE( 3, p, 2);
|
return( ret );
|
||||||
|
}
|
||||||
p+=4;
|
|
||||||
|
|
||||||
/* length of next field */
|
|
||||||
*p++ = 0x2;
|
|
||||||
|
|
||||||
/* This implementation only supports a single TLS version, and only
|
|
||||||
* advertises a single value.
|
|
||||||
*/
|
|
||||||
mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver,
|
|
||||||
ssl->conf->transport, p );
|
|
||||||
|
|
||||||
MBEDTLS_SSL_DEBUG_MSG( 3, ( "supported version: [%d:%d]",
|
|
||||||
ssl->conf->max_major_ver, ssl->conf->max_minor_ver ) );
|
|
||||||
|
|
||||||
*olen = 7;
|
|
||||||
|
|
||||||
return( 0 );
|
return( 0 );
|
||||||
}
|
}
|
||||||
|
|
||||||
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
|
/*
|
||||||
|
* ClientHello Main entry point.
|
||||||
static int ssl_tls13_write_supported_groups_ext( mbedtls_ssl_context *ssl,
|
* orchestrates the other functions.
|
||||||
unsigned char *buf,
|
*/
|
||||||
unsigned char *end,
|
static int ssl_tls13_write_client_hello( mbedtls_ssl_context *ssl )
|
||||||
size_t *olen )
|
|
||||||
{
|
{
|
||||||
((void) ssl);
|
int ret = 0;
|
||||||
((void) buf);
|
unsigned char *buf;
|
||||||
((void) end);
|
size_t buf_len, msg_len;
|
||||||
((void) olen);
|
|
||||||
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
|
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client hello" ) );
|
||||||
|
|
||||||
|
MBEDTLS_SSL_PROC_CHK( ssl_tls13_prepare_client_hello, ( ssl ) );
|
||||||
|
|
||||||
|
MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_tls13_start_handshake_msg,
|
||||||
|
( ssl, MBEDTLS_SSL_HS_CLIENT_HELLO,
|
||||||
|
&buf, &buf_len ) );
|
||||||
|
|
||||||
|
MBEDTLS_SSL_PROC_CHK( ssl_tls13_write_exts_client_hello,
|
||||||
|
( ssl, buf, buf_len, &msg_len ) );
|
||||||
|
|
||||||
|
mbedtls_ssl_tls13_add_hs_hdr_to_checksum( ssl, MBEDTLS_SSL_HS_CLIENT_HELLO,
|
||||||
|
msg_len );
|
||||||
|
ssl->handshake->update_checksum( ssl, buf, 0 );
|
||||||
|
|
||||||
|
MBEDTLS_SSL_PROC_CHK( ssl_tls13_finalize_client_hello, ( ssl ) );
|
||||||
|
MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_tls13_finish_handshake_msg,
|
||||||
|
( ssl, buf_len, msg_len ) );
|
||||||
|
|
||||||
|
cleanup:
|
||||||
|
|
||||||
|
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client hello" ) );
|
||||||
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int ssl_tls13_write_key_shares_ext( mbedtls_ssl_context *ssl,
|
int mbedtls_ssl_tls13_handshake_client_step( mbedtls_ssl_context *ssl )
|
||||||
unsigned char *buf,
|
|
||||||
unsigned char *end,
|
|
||||||
size_t *olen )
|
|
||||||
{
|
{
|
||||||
((void) ssl);
|
int ret = 0;
|
||||||
((void) buf);
|
|
||||||
((void) end);
|
|
||||||
((void) olen);
|
|
||||||
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
|
|
||||||
}
|
|
||||||
|
|
||||||
#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
|
if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL )
|
||||||
|
{
|
||||||
|
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Handshake completed but ssl->handshake is NULL.\n" ) );
|
||||||
|
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
|
||||||
|
}
|
||||||
|
|
||||||
|
MBEDTLS_SSL_DEBUG_MSG( 2, ( "client state: %d", ssl->state ) );
|
||||||
|
|
||||||
|
switch( ssl->state )
|
||||||
|
{
|
||||||
|
/*
|
||||||
|
* ssl->state is initialized as HELLO_REQUEST. It is same
|
||||||
|
* with CLIENT_HELLO status
|
||||||
|
*/
|
||||||
|
case MBEDTLS_SSL_HELLO_REQUEST:
|
||||||
|
case MBEDTLS_SSL_CLIENT_HELLO:
|
||||||
|
ret = ssl_tls13_write_client_hello( ssl );
|
||||||
|
break;
|
||||||
|
|
||||||
|
case MBEDTLS_SSL_SERVER_HELLO:
|
||||||
|
// Stop here : we haven't finished whole flow
|
||||||
|
ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
|
||||||
|
mbedtls_ssl_handshake_set_state( ssl, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS );
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
|
||||||
|
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
|
||||||
|
}
|
||||||
|
|
||||||
|
return( ret );
|
||||||
|
}
|
||||||
|
|
||||||
#endif /* MBEDTLS_SSL_CLI_C */
|
#endif /* MBEDTLS_SSL_CLI_C */
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue