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Add "exchanges" option to test server and client

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Goal is to test renegotiation better: we need more than one exchange for
server-initiated renego to work reliably (the previous hack for this wouldn't
work with non-blocking I/O and probably not with DTLS either).

Also check message termination in a semi-realistic way.
This commit is contained in:
Manuel Pégourié-Gonnard 2014-08-15 12:07:38 +02:00
parent 296e3b1174
commit a8c0a0dbd0
3 changed files with 86 additions and 60 deletions
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27
programs/ssl/ssl_client2.c
View file

@ -85,6 +85,7 @@ int main( int argc, char *argv[] )
#define DFL_RENEGOTIATION SSL_RENEGOTIATION_DISABLED #define DFL_RENEGOTIATION SSL_RENEGOTIATION_DISABLED
#define DFL_ALLOW_LEGACY SSL_LEGACY_NO_RENEGOTIATION #define DFL_ALLOW_LEGACY SSL_LEGACY_NO_RENEGOTIATION
#define DFL_RENEGOTIATE 0 #define DFL_RENEGOTIATE 0
#define DFL_EXCHANGES 1
#define DFL_MIN_VERSION -1 #define DFL_MIN_VERSION -1
#define DFL_MAX_VERSION -1 #define DFL_MAX_VERSION -1
#define DFL_AUTH_MODE SSL_VERIFY_REQUIRED #define DFL_AUTH_MODE SSL_VERIFY_REQUIRED
@ -120,6 +121,8 @@ struct options
int renegotiation; /* enable / disable renegotiation */ int renegotiation; /* enable / disable renegotiation */
int allow_legacy; /* allow legacy renegotiation */ int allow_legacy; /* allow legacy renegotiation */
int renegotiate; /* attempt renegotiation? */ int renegotiate; /* attempt renegotiation? */
int renego_delay; /* delay before enforcing renegotiation */
int exchanges; /* number of data exchanges */
int min_version; /* minimum protocol version accepted */ int min_version; /* minimum protocol version accepted */
int max_version; /* maximum protocol version accepted */ int max_version; /* maximum protocol version accepted */
int auth_mode; /* verify mode for connection */ int auth_mode; /* verify mode for connection */
@ -303,6 +306,7 @@ static int my_verify( void *data, x509_crt *crt, int depth, int *flags )
" renegotiation=%%d default: 1 (enabled)\n" \ " renegotiation=%%d default: 1 (enabled)\n" \
" allow_legacy=%%d default: 0 (disabled)\n" \ " allow_legacy=%%d default: 0 (disabled)\n" \
" renegotiate=%%d default: 0 (disabled)\n" \ " renegotiate=%%d default: 0 (disabled)\n" \
" exchanges=%%d default: 1\n" \
" reconnect=%%d default: 0 (disabled)\n" \ " reconnect=%%d default: 0 (disabled)\n" \
USAGE_TIME \ USAGE_TIME \
USAGE_TICKETS \ USAGE_TICKETS \
@ -399,6 +403,7 @@ int main( int argc, char *argv[] )
opt.renegotiation = DFL_RENEGOTIATION; opt.renegotiation = DFL_RENEGOTIATION;
opt.allow_legacy = DFL_ALLOW_LEGACY; opt.allow_legacy = DFL_ALLOW_LEGACY;
opt.renegotiate = DFL_RENEGOTIATE; opt.renegotiate = DFL_RENEGOTIATE;
opt.exchanges = DFL_EXCHANGES;
opt.min_version = DFL_MIN_VERSION; opt.min_version = DFL_MIN_VERSION;
opt.max_version = DFL_MAX_VERSION; opt.max_version = DFL_MAX_VERSION;
opt.auth_mode = DFL_AUTH_MODE; opt.auth_mode = DFL_AUTH_MODE;
@ -486,6 +491,12 @@ int main( int argc, char *argv[] )
if( opt.renegotiate < 0 || opt.renegotiate > 1 ) if( opt.renegotiate < 0 || opt.renegotiate > 1 )
goto usage; goto usage;
} }
else if( strcmp( p, "exchanges" ) == 0 )
{
opt.exchanges = atoi( q );
if( opt.exchanges < 1 )
goto usage;
}
else if( strcmp( p, "reconnect" ) == 0 ) else if( strcmp( p, "reconnect" ) == 0 )
{ {
opt.reconnect = atoi( q ); opt.reconnect = atoi( q );
@ -1136,11 +1147,25 @@ send_request:
len = ret; len = ret;
buf[len] = '\0'; buf[len] = '\0';
printf( " %d bytes read\n\n%s", len, (char *) buf ); printf( " %d bytes read\n\n%s", len, (char *) buf );
/* End of message should be detected according to the syntax of the
* application protocol (eg HTTP), just use a dummy test here. */
if( ret > 0 && buf[len-1] == '\n' )
{
ret = 0;
break;
}
} }
while( 1 ); while( 1 );
/* /*
* 9. Reconnect? * 7b. Continue doing data exchanges?
*/
if( --opt.exchanges > 0 )
goto send_request;
/*
* 7c. Reconnect?
*/ */
reconnect: reconnect:
if( opt.reconnect != 0 ) if( opt.reconnect != 0 )

71
programs/ssl/ssl_server2.c
View file

@ -587,7 +587,7 @@ void term_handler( int sig )
int main( int argc, char *argv[] ) int main( int argc, char *argv[] )
{ {
int ret = 0, len, written, frags; int ret = 0, len, written, frags, exchanges;
int client_fd = -1; int client_fd = -1;
int version_suites[4][2]; int version_suites[4][2];
unsigned char buf[IO_BUF_LEN]; unsigned char buf[IO_BUF_LEN];
@ -1502,6 +1502,8 @@ reset:
} }
#endif /* POLARSSL_X509_CRT_PARSE_C */ #endif /* POLARSSL_X509_CRT_PARSE_C */
exchanges = opt.exchanges;
data_exchange:
/* /*
* 6. Read the HTTP Request * 6. Read the HTTP Request
*/ */
@ -1510,6 +1512,7 @@ reset:
do do
{ {
int terminated = 0;
len = sizeof( buf ) - 1; len = sizeof( buf ) - 1;
memset( buf, 0, sizeof( buf ) ); memset( buf, 0, sizeof( buf ) );
ret = ssl_read( &ssl, buf, len ); ret = ssl_read( &ssl, buf, len );
@ -1534,7 +1537,7 @@ reset:
default: default:
printf( " ssl_read returned -0x%x\n", -ret ); printf( " ssl_read returned -0x%x\n", -ret );
goto close_notify; goto reset;
} }
} }
@ -1543,6 +1546,11 @@ reset:
len = ret; len = ret;
buf[len] = '\0'; buf[len] = '\0';
printf( " %d bytes read\n\n%s\n", len, (char *) buf ); printf( " %d bytes read\n\n%s\n", len, (char *) buf );
/* End of message should be detected according to the syntax of the
* application protocol (eg HTTP), just use a dummy test here. */
if( buf[len - 1] == '\n' )
terminated = 1;
} }
else else
{ {
@ -1578,22 +1586,31 @@ reset:
ori_len + extra_len, ori_len, extra_len, ori_len + extra_len, ori_len, extra_len,
(char *) larger_buf ); (char *) larger_buf );
/* End of message should be detected according to the syntax of the
* application protocol (eg HTTP), just use a dummy test here. */
if( larger_buf[ori_len + extra_len - 1] == '\n' )
terminated = 1;
polarssl_free( larger_buf ); polarssl_free( larger_buf );
} }
if( ret > 0 ) if( terminated )
{
ret = 0;
break; break;
}
} }
while( 1 ); while( 1 );
/* /*
* 7. Write the 200 Response * 7a. Request renegotiation while client is waiting for input from us.
* (only if we're going to exhange more data afterwards)
*/ */
if( opt.renegotiate ) if( opt.renegotiate && exchanges > 1 )
{ {
/* Request renegotiation while the client is waiting for input */
printf( " . Requestion renegotiation..." ); printf( " . Requestion renegotiation..." );
fflush( stdout ); fflush( stdout );
while( ( ret = ssl_renegotiate( &ssl ) ) != 0 ) while( ( ret = ssl_renegotiate( &ssl ) ) != 0 )
{ {
if( ret != POLARSSL_ERR_NET_WANT_READ && if( ret != POLARSSL_ERR_NET_WANT_READ &&
@ -1603,8 +1620,13 @@ reset:
goto reset; goto reset;
} }
} }
printf( " ok\n" );
} }
/*
* 7. Write the 200 Response
*/
printf( " > Write to client:" ); printf( " > Write to client:" );
fflush( stdout ); fflush( stdout );
@ -1632,45 +1654,24 @@ reset:
buf[written] = '\0'; buf[written] = '\0';
printf( " %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf ); printf( " %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf );
if( opt.renegotiate )
{
/*
* Should be a while loop, not an if, but here we're not actually
* expecting data from the client, and since we're running tests
* locally, we can just hope the handshake will finish the during the
* first call.
*/
if( ( ret = ssl_read( &ssl, buf, 0 ) ) != 0 )
{
if( ret != POLARSSL_ERR_NET_WANT_READ &&
ret != POLARSSL_ERR_NET_WANT_WRITE )
{
printf( " failed\n ! ssl_read returned %d\n\n", ret );
/* Unexpected message probably means client didn't renegotiate
* as requested */
if( ret == POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE )
goto reset;
else
goto exit;
}
}
printf( " ok\n" );
}
/* /*
* 8. Close the connection cleanly * 7b. Continue doing data exchanges?
*/
if( --exchanges > 0 )
goto data_exchange;
/*
* 8. Done, cleanly close the connection
*/ */
close_notify: close_notify:
printf( " . Closing the connection..." ); printf( " . Closing the connection..." );
while( ( ret = ssl_close_notify( &ssl ) ) < 0 ) while( ( ret = ssl_close_notify( &ssl ) ) < 0 )
{ {
printf( " ret = %d (-0x%04X)", ret, -ret );
if( ret == POLARSSL_ERR_NET_CONN_RESET ) if( ret == POLARSSL_ERR_NET_CONN_RESET )
{ {
printf( " connection was reset by peer\n" ); printf( " ok (already closed by peer)\n" );
ret = 0; ret = 0;
goto reset; goto reset;
} }

48
tests/ssl-opt.sh
View file

@ -564,8 +564,8 @@ run_test "Max fragment length #3" \
# Tests for renegotiation # Tests for renegotiation
run_test "Renegotiation #0 (none)" \ run_test "Renegotiation #0 (none)" \
"$P_SRV debug_level=4" \ "$P_SRV debug_level=4 exchanges=2" \
"$P_CLI debug_level=4" \ "$P_CLI debug_level=4 exchanges=2" \
0 \ 0 \
-C "client hello, adding renegotiation extension" \ -C "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -577,8 +577,8 @@ run_test "Renegotiation #0 (none)" \
-S "write hello request" -S "write hello request"
run_test "Renegotiation #1 (enabled, client-initiated)" \ run_test "Renegotiation #1 (enabled, client-initiated)" \
"$P_SRV debug_level=4 renegotiation=1" \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1" \
"$P_CLI debug_level=4 renegotiation=1 renegotiate=1" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=1 renegotiate=1" \
0 \ 0 \
-c "client hello, adding renegotiation extension" \ -c "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -590,8 +590,8 @@ run_test "Renegotiation #1 (enabled, client-initiated)" \
-S "write hello request" -S "write hello request"
run_test "Renegotiation #2 (enabled, server-initiated)" \ run_test "Renegotiation #2 (enabled, server-initiated)" \
"$P_SRV debug_level=4 renegotiation=1 renegotiate=1" \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1 renegotiate=1" \
"$P_CLI debug_level=4 renegotiation=1" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=1" \
0 \ 0 \
-c "client hello, adding renegotiation extension" \ -c "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -603,8 +603,8 @@ run_test "Renegotiation #2 (enabled, server-initiated)" \
-s "write hello request" -s "write hello request"
run_test "Renegotiation #3 (enabled, double)" \ run_test "Renegotiation #3 (enabled, double)" \
"$P_SRV debug_level=4 renegotiation=1 renegotiate=1" \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1 renegotiate=1" \
"$P_CLI debug_level=4 renegotiation=1 renegotiate=1" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=1 renegotiate=1" \
0 \ 0 \
-c "client hello, adding renegotiation extension" \ -c "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -616,8 +616,8 @@ run_test "Renegotiation #3 (enabled, double)" \
-s "write hello request" -s "write hello request"
run_test "Renegotiation #4 (client-initiated, server-rejected)" \ run_test "Renegotiation #4 (client-initiated, server-rejected)" \
"$P_SRV debug_level=4 renegotiation=0" \ "$P_SRV debug_level=4 exchanges=2 renegotiation=0" \
"$P_CLI debug_level=4 renegotiation=1 renegotiate=1" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=1 renegotiate=1" \
1 \ 1 \
-c "client hello, adding renegotiation extension" \ -c "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -631,8 +631,8 @@ run_test "Renegotiation #4 (client-initiated, server-rejected)" \
-c "failed" -c "failed"
run_test "Renegotiation #5 (server-initiated, client-rejected, default)" \ run_test "Renegotiation #5 (server-initiated, client-rejected, default)" \
"$P_SRV debug_level=4 renegotiation=1 renegotiate=1" \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1 renegotiate=1" \
"$P_CLI debug_level=4 renegotiation=0" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=0" \
0 \ 0 \
-C "client hello, adding renegotiation extension" \ -C "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -646,9 +646,9 @@ run_test "Renegotiation #5 (server-initiated, client-rejected, default)" \
-S "failed" -S "failed"
run_test "Renegotiation #6 (server-initiated, client-rejected, not enforced)" \ run_test "Renegotiation #6 (server-initiated, client-rejected, not enforced)" \
"$P_SRV debug_level=4 renegotiation=1 renegotiate=1 \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1 renegotiate=1 \
renego_delay=-1" \ renego_delay=-1" \
"$P_CLI debug_level=4 renegotiation=0" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=0" \
0 \ 0 \
-C "client hello, adding renegotiation extension" \ -C "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -661,10 +661,11 @@ run_test "Renegotiation #6 (server-initiated, client-rejected, not enforced)"
-S "SSL - An unexpected message was received from our peer" \ -S "SSL - An unexpected message was received from our peer" \
-S "failed" -S "failed"
run_test "Renegotiation #7 (server-initiated, client-rejected, delay 1)" \ # delay 2 for 1 alert record + 1 application data record
"$P_SRV debug_level=4 renegotiation=1 renegotiate=1 \ run_test "Renegotiation #7 (server-initiated, client-rejected, delay 2)" \
renego_delay=1" \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1 renegotiate=1 \
"$P_CLI debug_level=4 renegotiation=0" \ renego_delay=2" \
"$P_CLI debug_level=4 exchanges=2 renegotiation=0" \
0 \ 0 \
-C "client hello, adding renegotiation extension" \ -C "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -678,9 +679,9 @@ run_test "Renegotiation #7 (server-initiated, client-rejected, delay 1)" \
-S "failed" -S "failed"
run_test "Renegotiation #8 (server-initiated, client-rejected, delay 0)" \ run_test "Renegotiation #8 (server-initiated, client-rejected, delay 0)" \
"$P_SRV debug_level=4 renegotiation=1 renegotiate=1 \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1 renegotiate=1 \
renego_delay=0" \ renego_delay=0" \
"$P_CLI debug_level=4 renegotiation=0" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=0" \
0 \ 0 \
-C "client hello, adding renegotiation extension" \ -C "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
@ -690,13 +691,12 @@ run_test "Renegotiation #8 (server-initiated, client-rejected, delay 0)" \
-C "=> renegotiate" \ -C "=> renegotiate" \
-S "=> renegotiate" \ -S "=> renegotiate" \
-s "write hello request" \ -s "write hello request" \
-s "SSL - An unexpected message was received from our peer" \ -s "SSL - An unexpected message was received from our peer"
-s "failed"
run_test "Renegotiation #9 (server-initiated, client-accepted, delay 0)" \ run_test "Renegotiation #9 (server-initiated, client-accepted, delay 0)" \
"$P_SRV debug_level=4 renegotiation=1 renegotiate=1 \ "$P_SRV debug_level=4 exchanges=2 renegotiation=1 renegotiate=1 \
renego_delay=0" \ renego_delay=0" \
"$P_CLI debug_level=4 renegotiation=1" \ "$P_CLI debug_level=4 exchanges=2 renegotiation=1" \
0 \ 0 \
-c "client hello, adding renegotiation extension" \ -c "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \ -s "received TLS_EMPTY_RENEGOTIATION_INFO" \