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Make use of acquire/release in client-side ssl_write_encrypted_pms()

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This commit is contained in:
Hanno Becker 2019-02-28 14:02:30 +00:00
parent 232f8faf00
commit 0c1681685c
1 changed files with 20 additions and 5 deletions
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25
library/ssl_cli.c
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@ -2323,7 +2323,16 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
peer_pk = &ssl->handshake->peer_pubkey;
#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
if( ssl->session_negotiate->peer_cert != NULL )
peer_pk = &ssl->session_negotiate->peer_cert->pk;
{
ret = mbedtls_x509_crt_pk_acquire( ssl->session_negotiate->peer_cert,
&peer_pk );
if( ret != 0 )
{
/* Should never happen */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
if( peer_pk == NULL )
@ -2339,7 +2348,8 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_RSA ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate key type mismatch" ) );
return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
ret = MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH;
goto cleanup;
}
if( ( ret = mbedtls_pk_encrypt( peer_pk,
@ -2349,7 +2359,7 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_rsa_pkcs1_encrypt", ret );
return( ret );
goto cleanup;
}
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
@ -2362,11 +2372,16 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
}
#endif
cleanup:
#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
/* We don't need the peer's public key anymore. Free it. */
mbedtls_pk_free( peer_pk );
#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
return( 0 );
#else
mbedtls_x509_crt_pk_release( ssl->session_negotiate->peer_cert, peer_pk );
#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
return( ret );
}
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */