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Merge pull request #592 from ARMmbed/static_config_extended_ms

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[Baremetal] Exemplify hardcoding of SSL configuration at compile-time in the example of ExtendedMasterSecret
This commit is contained in:
Manuel Pégourié-Gonnard 2019-06-28 13:49:35 +02:00 committed by GitHub
commit 4e24c449e2
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GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 268 additions and 63 deletions
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6
configs/baremetal.h
View File

@ -79,6 +79,12 @@
#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT
#define MBEDTLS_SSL_DTLS_CONNECTION_ID
/* Compile-time fixed parts of the SSL configuration */
#define MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET \
MBEDTLS_SSL_EXTENDED_MS_ENABLED
#define MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET \
MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED
/* X.509 CRT parsing */
#define MBEDTLS_X509_USE_C
#define MBEDTLS_X509_CRT_PARSE_C

7
include/mbedtls/check_config.h
View File

@ -650,6 +650,13 @@
#error "MBEDTLS_SSL_EXTENDED_MASTER_SECRET defined, but not all prerequsites"
#endif
#if ( defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET) ) || \
( !defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET) && \
defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET) )
#define "MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET and MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET must be defined together."
#endif
#if defined(MBEDTLS_SSL_TICKET_C) && !defined(MBEDTLS_CIPHER_C)
#error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites"
#endif

19
include/mbedtls/config.h
View File

@ -3438,6 +3438,25 @@
/* \} name SECTION: Customisation configuration options */
/**
* \name SECTION: Compile-time SSL configuration
*
* This section allows to fix parts of the SSL configuration
* at compile-time. If a field is fixed at compile-time, the
* corresponding SSL configuration API `mbedtls_ssl_conf_xxx()`
* is removed.
*
* This can be used on constrained systems to reduce code-size.
* \{
*/
/* ExtendedMasterSecret extension
* The following two options must be set/unset simultaneously. */
//#define MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET MBEDTLS_SSL_EXTENDED_MS_ENABLED
//#define MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET MBEDTLS_SSL_EXTENDED_MS_ENFORCE_DISABLED
/* \} SECTION: Compile-time SSL configuration */
/* Target and application specific configurations
*
* Allow user to override any previous default.

25
include/mbedtls/ssl.h
View File

@ -1060,10 +1060,14 @@ struct mbedtls_ssl_config
unsigned int encrypt_then_mac : 1 ; /*!< negotiate encrypt-then-mac? */
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if !defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
unsigned int extended_ms : 1; /*!< negotiate extended master secret? */
#endif /* !MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if !defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
unsigned int enforce_extended_master_secret : 1; /*!< enforce the usage
* of extended master
* secret */
#endif /* !MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET */
#endif
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
unsigned int anti_replay : 1; /*!< detect and prevent replay? */
@ -1094,7 +1098,6 @@ struct mbedtls_ssl_config
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
};
struct mbedtls_ssl_context
{
const mbedtls_ssl_config *conf; /*!< configuration information */
@ -2842,6 +2845,7 @@ void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm );
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if !defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
/**
* \brief Enable or disable Extended Master Secret negotiation.
* (Default: MBEDTLS_SSL_EXTENDED_MS_ENABLED)
@ -2850,11 +2854,20 @@ void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm );
* protocol, and should not cause any interoperability issue
* (used only if the peer supports it too).
*
* \note On constrained systems, this option can also be
* fixed at compile-time by defining the constant
* MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET
* as MBEDTLS_SSL_EXTENDED_MS_ENABLED or
* MBEDTLS_SSL_EXTENDED_MS_DISABLED.
*
* \param conf SSL configuration
* \param ems MBEDTLS_SSL_EXTENDED_MS_ENABLED or MBEDTLS_SSL_EXTENDED_MS_DISABLED
* \param ems MBEDTLS_SSL_EXTENDED_MS_ENABLED or
* MBEDTLS_SSL_EXTENDED_MS_DISABLED
*/
void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems );
#endif /* !MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET */
#if !defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
/**
* \brief Enable or disable Extended Master Secret enforcing.
* (Default: MBEDTLS_SSL_EXTENDED_MS_ENFORCE_DISABLED)
@ -2871,9 +2884,17 @@ void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems
* \param conf Currently used SSL configuration struct.
* \param ems_enf MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED or
* MBEDTLS_SSL_EXTENDED_MS_ENFORCE_DISABLED
* \note On constrained systems, this option can also be
* fixed at compile-time by defining the constant
* MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET
* as MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED or
* MBEDTLS_SSL_EXTENDED_MS_ENFORCE_DISABLED.
*
*/
void mbedtls_ssl_conf_extended_master_secret_enforce( mbedtls_ssl_config *conf,
char ems_enf );
#endif /* !MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET */
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_ARC4_C)

63
include/mbedtls/ssl_internal.h
View File

@ -321,6 +321,18 @@
#define MBEDTLS_SSL_TRANSPORT_ELSE /* empty: no other branch */
#endif /* TLS and/or DTLS */
/* Check if the use of the ExtendedMasterSecret extension
* is enforced at compile-time. If so, we don't need to
* track its status in the handshake parameters. */
#if defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET) && \
defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET) && \
MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET == \
MBEDTLS_SSL_EXTENDED_MS_ENABLED && \
MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET == \
MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED
#define MBEDTLS_SSL_EXTENDED_MS_ENFORCED
#endif
#ifdef __cplusplus
extern "C" {
#endif
@ -505,7 +517,8 @@ struct mbedtls_ssl_handshake_params
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
int new_session_ticket; /*!< use NewSessionTicket? */
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_EXTENDED_MS_ENFORCED)
int extended_ms; /*!< use Extended Master Secret? */
#endif
@ -523,6 +536,24 @@ struct mbedtls_ssl_handshake_params
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
};
/*
* Getter functions for fields in mbedtls_ssl_handshake_params which
* may be statically implied by the configuration and hence be omitted
* from the structure.
*/
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
static inline int mbedtls_ssl_hs_get_extended_ms(
mbedtls_ssl_handshake_params const *params )
{
#if !defined(MBEDTLS_SSL_EXTENDED_MS_ENFORCED)
return( params->extended_ms );
#else
((void) params);
return( MBEDTLS_SSL_EXTENDED_MS_ENABLED );
#endif /* MBEDTLS_SSL_EXTENDED_MS_ENFORCED */
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
typedef struct mbedtls_ssl_hs_buffer mbedtls_ssl_hs_buffer;
/*
@ -1048,4 +1079,34 @@ int mbedtls_ssl_decrypt_buf( mbedtls_ssl_context *ssl,
mbedtls_ssl_transform *transform,
mbedtls_record *rec );
/*
* Getter functions for fields in mbedtls_ssl_config which may
* be fixed at compile time via one of MBEDTLS_SSL_SSL_CONF_XXX.
*/
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
static inline unsigned int mbedtls_ssl_conf_get_ems(
mbedtls_ssl_config const *conf )
{
#if !defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
return( conf->extended_ms );
#else
((void) conf);
return( MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET );
#endif /* MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET */
}
static inline unsigned int mbedtls_ssl_conf_get_ems_enforced(
mbedtls_ssl_config const *conf )
{
#if !defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
return( conf->enforce_extended_master_secret );
#else
((void) conf);
return( MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET );
#endif /* MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET */
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#endif /* ssl_internal.h */

29
library/ssl_cli.c
View File

@ -590,7 +590,8 @@ static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
*olen = 0;
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
if( mbedtls_ssl_conf_get_ems( ssl->conf ) ==
MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
return;
@ -1328,7 +1329,8 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
if( mbedtls_ssl_conf_get_ems( ssl->conf ) ==
MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
len != 0 )
{
@ -1339,9 +1341,6 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
}
((void) buf);
ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
return( 0 );
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
@ -1601,6 +1600,9 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
#endif
#if defined(MBEDTLS_SSL_RENEGOTIATION)
int renegotiation_info_seen = 0;
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
int extended_ms_seen = 0;
#endif
int handshake_failure = 0;
const mbedtls_ssl_ciphersuite_t *suite_info;
@ -1982,6 +1984,7 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
{
return( ret );
}
extended_ms_seen = 1;
break;
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
@ -2089,15 +2092,23 @@ static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
* Check if extended master secret is being enforced
*/
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED &&
ssl->conf->enforce_extended_master_secret ==
MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED &&
ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED )
if( mbedtls_ssl_conf_get_ems( ssl->conf ) ==
MBEDTLS_SSL_EXTENDED_MS_ENABLED )
{
if( extended_ms_seen )
{
#if !defined(MBEDTLS_SSL_EXTENDED_MS_ENFORCED)
ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
#endif /* !MBEDTLS_SSL_EXTENDED_MS_ENFORCED */
}
else if( mbedtls_ssl_conf_get_ems_enforced( ssl->conf ) ==
MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Peer not offering extended master "
"secret, while it is enforced") );
handshake_failure = 1;
}
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
if( handshake_failure == 1 )

29
library/ssl_srv.c
View File

@ -567,12 +567,6 @@ static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
((void) buf);
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED &&
ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
{
ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
}
return( 0 );
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
@ -1265,6 +1259,9 @@ static int ssl_parse_client_hello( mbedtls_ssl_context *ssl )
unsigned char *buf, *p, *ext;
#if defined(MBEDTLS_SSL_RENEGOTIATION)
int renegotiation_info_seen = 0;
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
int extended_ms_seen = 0;
#endif
int handshake_failure = 0;
const int *ciphersuites;
@ -1893,6 +1890,7 @@ read_record_header:
ret = ssl_parse_extended_ms_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
extended_ms_seen = 1;
break;
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
@ -2039,15 +2037,23 @@ read_record_header:
* Check if extended master secret is being enforced
*/
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED &&
ssl->conf->enforce_extended_master_secret ==
MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED &&
ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED )
if( mbedtls_ssl_conf_get_ems( ssl->conf ) ==
MBEDTLS_SSL_EXTENDED_MS_ENABLED )
{
if( extended_ms_seen )
{
#if !defined(MBEDTLS_SSL_EXTENDED_MS_ENFORCED)
ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
#endif /* !MBEDTLS_SSL_EXTENDED_MS_ENFORCED */
}
else if( mbedtls_ssl_conf_get_ems_enforced( ssl->conf ) ==
MBEDTLS_SSL_EXTENDED_MS_ENFORCE_ENABLED )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Peer not offering extended master "
"secret, while it is enforced") );
handshake_failure = 1;
}
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
if( handshake_failure == 1 )
@ -2266,7 +2272,8 @@ static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
{
unsigned char *p = buf;
if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
if( mbedtls_ssl_hs_get_extended_ms( ssl->handshake )
== MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
*olen = 0;

14
library/ssl_tls.c
View File

@ -1273,7 +1273,8 @@ static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake,
handshake->pmslen );
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
if( handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED )
if( mbedtls_ssl_hs_get_extended_ms( handshake )
== MBEDTLS_SSL_EXTENDED_MS_ENABLED )
{
unsigned char session_hash[48];
size_t hash_len;
@ -8609,17 +8610,20 @@ void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm )
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if !defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems )
{
conf->extended_ms = ems;
}
#endif /* !MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET */
#if !defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
void mbedtls_ssl_conf_extended_master_secret_enforce( mbedtls_ssl_config *conf,
char ems_enf )
{
conf->enforce_extended_master_secret = ems_enf;
}
#endif
#endif /* !MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET */
#endif /* !MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_ARC4_C)
void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 )
@ -10716,9 +10720,13 @@ int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf,
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if !defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
conf->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
#endif /* !MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET */
#if !defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
conf->enforce_extended_master_secret =
MBEDTLS_SSL_EXTENDED_MS_ENFORCE_DISABLED;
#endif /* !MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET */
#endif
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)

16
programs/ssl/query_config.c
View File

@ -2578,6 +2578,22 @@ int query_config( const char *config )
}
#endif /* MBEDTLS_PLATFORM_GMTIME_R_ALT */
#if defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
if( strcmp( "MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET", config ) == 0 )
{
MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET );
return( 0 );
}
#endif /* MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
if( strcmp( "MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET", config ) == 0 )
{
MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET );
return( 0 );
}
#endif /* MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET */
/* If the symbol is not found, return an error */
return( 1 );
}

8
programs/ssl/ssl_client2.c
View File

@ -245,7 +245,9 @@ int main( void )
#define USAGE_FALLBACK ""
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
#define USAGE_EMS \
" extended_ms=0/1 default: (library default: on)\n" \
" enforce_extended_master_secret=0/1 default: (library default: off)\n"
@ -1706,7 +1708,9 @@ int main( int argc, char *argv[] )
mbedtls_ssl_conf_truncated_hmac( &conf, opt.trunc_hmac );
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
if( opt.extended_ms != DFL_EXTENDED_MS )
mbedtls_ssl_conf_extended_master_secret( &conf, opt.extended_ms );
if( opt.enforce_extended_master_secret != DFL_EXTENDED_MS_ENFORCE )

8
programs/ssl/ssl_server2.c
View File

@ -344,7 +344,9 @@ int main( void )
#define USAGE_DTLS ""
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
#define USAGE_EMS \
" extended_ms=0/1 default: (library default: on)\n" \
" enforce_extended_master_secret=0/1 default: (library default: off)\n"
@ -2491,7 +2493,9 @@ int main( int argc, char *argv[] )
mbedtls_ssl_conf_truncated_hmac( &conf, opt.trunc_hmac );
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET) && \
!defined(MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET)
if( opt.extended_ms != DFL_EXTENDED_MS )
mbedtls_ssl_conf_extended_master_secret( &conf, opt.extended_ms );
if( opt.enforce_extended_master_secret != DFL_EXTENDED_MS_ENFORCE )

97
tests/ssl-opt.sh
View File

@ -503,6 +503,49 @@ detect_dtls() {
fi
}
# Strip off a particular parameter from the command line
# and return its value.
# Parameter 1: Command line parameter to strip off
# ENV I/O: CMD command line to search and modify
extract_cmdline_argument() {
__ARG=$(echo "$CMD" | sed -n "s/^.* $1=\([^ ]*\).*$/\1/p")
CMD=$(echo "$CMD" | sed "s/$1=\([^ ]*\)//")
}
# Check compatibility of the ssl_client2/ssl_server2 command-line
# with a particular compile-time configurable option.
# Parameter 1: Command-line argument (e.g. extended_ms)
# Parameter 2: Corresponding compile-time configuration
# (e.g. MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
# ENV I/O: CMD command line to search and modify
# SKIP_NEXT set to "YES" on a mismatch
check_cmdline_param_compat() {
__VAL="$( get_config_value_or_default "$2" )"
if [ ! -z "$__VAL" ]; then
extract_cmdline_argument "$1"
if [ ! -z "$__ARG" ] && [ "$__ARG" != "$__VAL" ]; then
SKIP_NEXT="YES"
fi
fi
}
# Go through all options that can be hardcoded at compile-time and
# detect whether the command line configures them in a conflicting
# way. If so, skip the test. Otherwise, remove the corresponding
# entry.
# Parameter 1: Command line to inspect
# Output: Modified command line
# ENV I/O: SKIP_TEST set to 1 on mismatch.
check_cmdline_compat() {
CMD="$1"
# ExtendedMasterSecret configuration
check_cmdline_param_compat "extended_ms" \
"MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET"
check_cmdline_param_compat "enforce_extended_master_secret" \
"MBEDTLS_SSL_CONF_ENFORCE_EXTENDED_MASTER_SECRET"
}
# Usage: run_test name [-p proxy_cmd] srv_cmd cli_cmd cli_exit [option [...]]
# Options: -s pattern pattern that must be present in server output
# -c pattern pattern that must be present in client output
@ -531,14 +574,6 @@ run_test() {
SKIP_NEXT="YES"
fi
# should we skip?
if [ "X$SKIP_NEXT" = "XYES" ]; then
SKIP_NEXT="NO"
echo "SKIP"
SKIPS=$(( $SKIPS + 1 ))
return
fi
# does this test use a proxy?
if [ "X$1" = "X-p" ]; then
PXY_CMD="$2"
@ -553,6 +588,12 @@ run_test() {
CLI_EXPECT="$3"
shift 3
check_cmdline_compat "$SRV_CMD"
SRV_CMD="$CMD"
check_cmdline_compat "$CLI_CMD"
CLI_CMD="$CMD"
# Check if test uses files
TEST_USES_FILES=$(echo "$SRV_CMD $CLI_CMD" | grep "\.\(key\|crt\|pem\)" )
if [ ! -z "$TEST_USES_FILES" ]; then
@ -1836,8 +1877,8 @@ run_test "Encrypt then MAC: client enabled, server SSLv3" \
# Tests for Extended Master Secret extension
run_test "Extended Master Secret: default (not enforcing)" \
"$P_SRV debug_level=3" \
"$P_CLI debug_level=3" \
"$P_SRV debug_level=3 extended_ms=1 enforce_extended_master_secret=0 " \
"$P_CLI debug_level=3 extended_ms=1 enforce_extended_master_secret=0" \
0 \
-c "client hello, adding extended_master_secret extension" \
-s "found extended master secret extension" \
@ -1847,8 +1888,8 @@ run_test "Extended Master Secret: default (not enforcing)" \
-s "session hash for extended master secret"
run_test "Extended Master Secret: both enabled, both enforcing" \
"$P_SRV debug_level=3 enforce_extended_master_secret=1" \
"$P_CLI debug_level=3 enforce_extended_master_secret=1" \
"$P_SRV debug_level=3 extended_ms=1 enforce_extended_master_secret=1" \
"$P_CLI debug_level=3 extended_ms=1 enforce_extended_master_secret=1" \
0 \
-c "client hello, adding extended_master_secret extension" \
-s "found extended master secret extension" \
@ -1858,8 +1899,8 @@ run_test "Extended Master Secret: both enabled, both enforcing" \
-s "session hash for extended master secret"
run_test "Extended Master Secret: both enabled, client enforcing" \
"$P_SRV debug_level=3 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 enforce_extended_master_secret=1" \
"$P_SRV debug_level=3 extended_ms=1 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 extended_ms=1 enforce_extended_master_secret=1" \
0 \
-c "client hello, adding extended_master_secret extension" \
-s "found extended master secret extension" \
@ -1869,8 +1910,8 @@ run_test "Extended Master Secret: both enabled, client enforcing" \
-s "session hash for extended master secret"
run_test "Extended Master Secret: both enabled, server enforcing" \
"$P_SRV debug_level=3 enforce_extended_master_secret=1" \
"$P_CLI debug_level=3 enforce_extended_master_secret=0" \
"$P_SRV debug_level=3 extended_ms=1 enforce_extended_master_secret=1" \
"$P_CLI debug_level=3 extended_ms=1 enforce_extended_master_secret=0" \
0 \
-c "client hello, adding extended_master_secret extension" \
-s "found extended master secret extension" \
@ -1880,7 +1921,7 @@ run_test "Extended Master Secret: both enabled, server enforcing" \
-s "session hash for extended master secret"
run_test "Extended Master Secret: client enabled, server disabled, client enforcing" \
"$P_SRV debug_level=3 extended_ms=0" \
"$P_SRV debug_level=3 extended_ms=0 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 extended_ms=1 enforce_extended_master_secret=1" \
1 \
-c "client hello, adding extended_master_secret extension" \
@ -1891,7 +1932,7 @@ run_test "Extended Master Secret: client enabled, server disabled, client enf
run_test "Extended Master Secret enforced: client disabled, server enabled, server enforcing" \
"$P_SRV debug_level=3 extended_ms=1 enforce_extended_master_secret=1" \
"$P_CLI debug_level=3 extended_ms=0" \
"$P_CLI debug_level=3 extended_ms=0 enforce_extended_master_secret=0" \
1 \
-C "client hello, adding extended_master_secret extension" \
-S "found extended master secret extension" \
@ -1900,8 +1941,8 @@ run_test "Extended Master Secret enforced: client disabled, server enabled, s
-s "Peer not offering extended master secret, while it is enforced"
run_test "Extended Master Secret: client enabled, server disabled, not enforcing" \
"$P_SRV debug_level=3 extended_ms=0" \
"$P_CLI debug_level=3 extended_ms=1" \
"$P_SRV debug_level=3 extended_ms=0 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 extended_ms=1 enforce_extended_master_secret=0" \
0 \
-c "client hello, adding extended_master_secret extension" \
-s "found extended master secret extension" \
@ -1911,8 +1952,8 @@ run_test "Extended Master Secret: client enabled, server disabled, not enforc
-S "session hash for extended master secret"
run_test "Extended Master Secret: client disabled, server enabled, not enforcing" \
"$P_SRV debug_level=3 extended_ms=1" \
"$P_CLI debug_level=3 extended_ms=0" \
"$P_SRV debug_level=3 extended_ms=1 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 extended_ms=0 enforce_extended_master_secret=0" \
0 \
-C "client hello, adding extended_master_secret extension" \
-S "found extended master secret extension" \
@ -1922,8 +1963,8 @@ run_test "Extended Master Secret: client disabled, server enabled, not enforc
-S "session hash for extended master secret"
run_test "Extended Master Secret: client disabled, server disabled" \
"$P_SRV debug_level=3 extended_ms=0" \
"$P_CLI debug_level=3 extended_ms=0" \
"$P_SRV debug_level=3 extended_ms=0 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 extended_ms=0 enforce_extended_master_secret=0" \
0 \
-C "client hello, adding extended_master_secret extension" \
-S "found extended master secret extension" \
@ -1934,8 +1975,8 @@ run_test "Extended Master Secret: client disabled, server disabled" \
requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
run_test "Extended Master Secret: client SSLv3, server enabled" \
"$P_SRV debug_level=3 min_version=ssl3" \
"$P_CLI debug_level=3 force_version=ssl3" \
"$P_SRV debug_level=3 min_version=ssl3 extended_ms=1 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 force_version=ssl3 extended_ms=1 enforce_extended_master_secret=0" \
0 \
-C "client hello, adding extended_master_secret extension" \
-S "found extended master secret extension" \
@ -1946,8 +1987,8 @@ run_test "Extended Master Secret: client SSLv3, server enabled" \
requires_config_enabled MBEDTLS_SSL_PROTO_SSL3
run_test "Extended Master Secret: client enabled, server SSLv3" \
"$P_SRV debug_level=3 force_version=ssl3" \
"$P_CLI debug_level=3 min_version=ssl3" \
"$P_SRV debug_level=3 force_version=ssl3 extended_ms=1 enforce_extended_master_secret=0" \
"$P_CLI debug_level=3 min_version=ssl3 extended_ms=1 enforce_extended_master_secret=0" \
0 \
-c "client hello, adding extended_master_secret extension" \
-S "found extended master secret extension" \