Add ability to test flags value in vrfy callback

So far there was no test ensuring that the flags passed to the vrfy callback
are correct (ie the flags for the current certificate, not including those of
the parent).

Actual tests case making use of that test function will be added in the next
commit.
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 885c6d7..29b3444 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -777,51 +777,51 @@
 
 X509 Certificate verification callback: trusted EE cert
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_SHA256_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
-x509_verify_callback:"data_files/server5-selfsigned.crt":"data_files/server5-selfsigned.crt":0:"depth 0 - serial 53\:A2\:CB\:4B\:12\:4E\:AD\:83\:7D\:A8\:94\:B2 - subject CN=selfsigned, OU=testing, O=PolarSSL, C=NL\n"
+x509_verify_callback:"data_files/server5-selfsigned.crt":"data_files/server5-selfsigned.crt":0:"depth 0 - serial 53\:A2\:CB\:4B\:12\:4E\:AD\:83\:7D\:A8\:94\:B2 - subject CN=selfsigned, OU=testing, O=PolarSSL, C=NL - flags 0x0000\n"
 
 X509 Certificate verification callback: simple
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
-x509_verify_callback:"data_files/server1.crt":"data_files/test-ca.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1\n"
+x509_verify_callback:"data_files/server1.crt":"data_files/test-ca.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x0000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x0000\n"
 
 X509 Certificate verification callback: two trusted roots
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat12.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1\n"
+x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat12.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x0000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x0000\n"
 
 X509 Certificate verification callback: two trusted roots, reversed order
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat21.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1\n"
+x509_verify_callback:"data_files/server1.crt":"data_files/test-ca_cat21.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x0000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x0000\n"
 
 X509 Certificate verification callback: root included
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_SHA1_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server1_ca.crt":"data_files/test-ca_cat21.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1\n"
+x509_verify_callback:"data_files/server1_ca.crt":"data_files/test-ca_cat21.crt":0:"depth 1 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x0000\ndepth 0 - serial 01 - subject C=NL, O=PolarSSL, CN=PolarSSL Server 1 - flags 0x0000\n"
 
 X509 Certificate verification callback: intermediate ca
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
-x509_verify_callback:"data_files/server7_int-ca.crt":"data_files/test-ca_cat12.crt":0:"depth 2 - serial C1\:43\:E2\:7E\:62\:43\:CC\:E8 - subject C=NL, O=PolarSSL, CN=Polarssl Test EC CA\ndepth 1 - serial 0E - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate CA\ndepth 0 - serial 10 - subject C=NL, O=PolarSSL, CN=localhost\n"
+x509_verify_callback:"data_files/server7_int-ca.crt":"data_files/test-ca_cat12.crt":0:"depth 2 - serial C1\:43\:E2\:7E\:62\:43\:CC\:E8 - subject C=NL, O=PolarSSL, CN=Polarssl Test EC CA - flags 0x0000\ndepth 1 - serial 0E - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate CA - flags 0x0000\ndepth 0 - serial 10 - subject C=NL, O=PolarSSL, CN=localhost - flags 0x0000\n"
 
 X509 Certificate verification callback: intermediate ca, root included
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
-x509_verify_callback:"data_files/server7_int-ca_ca2.crt":"data_files/test-ca_cat12.crt":0:"depth 2 - serial C1\:43\:E2\:7E\:62\:43\:CC\:E8 - subject C=NL, O=PolarSSL, CN=Polarssl Test EC CA\ndepth 1 - serial 0E - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate CA\ndepth 0 - serial 10 - subject C=NL, O=PolarSSL, CN=localhost\n"
+x509_verify_callback:"data_files/server7_int-ca_ca2.crt":"data_files/test-ca_cat12.crt":0:"depth 2 - serial C1\:43\:E2\:7E\:62\:43\:CC\:E8 - subject C=NL, O=PolarSSL, CN=Polarssl Test EC CA - flags 0x0000\ndepth 1 - serial 0E - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate CA - flags 0x0000\ndepth 0 - serial 10 - subject C=NL, O=PolarSSL, CN=localhost - flags 0x0000\n"
 
 X509 Certificate verification callback: intermediate ca trusted
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server7_int-ca_ca2.crt":"data_files/test-int-ca.crt":0:"depth 1 - serial 0E - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate CA\ndepth 0 - serial 10 - subject C=NL, O=PolarSSL, CN=localhost\n"
+x509_verify_callback:"data_files/server7_int-ca_ca2.crt":"data_files/test-int-ca.crt":0:"depth 1 - serial 0E - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate CA - flags 0x0000\ndepth 0 - serial 10 - subject C=NL, O=PolarSSL, CN=localhost - flags 0x0000\n"
 
 X509 Certificate verification callback: two intermediates
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
-x509_verify_callback:"data_files/server10_int3_int-ca2.crt":"data_files/test-ca_cat21.crt":0:"depth 3 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3\ndepth 0 - serial 4B - subject CN=localhost\n"
+x509_verify_callback:"data_files/server10_int3_int-ca2.crt":"data_files/test-ca_cat21.crt":0:"depth 3 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x0000\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA - flags 0x0000\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x0000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x0000\n"
 
 X509 Certificate verification callback: two intermediates, root included
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
-x509_verify_callback:"data_files/server10_int3_int-ca2_ca.crt":"data_files/test-ca_cat21.crt":0:"depth 3 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3\ndepth 0 - serial 4B - subject CN=localhost\n"
+x509_verify_callback:"data_files/server10_int3_int-ca2_ca.crt":"data_files/test-ca_cat21.crt":0:"depth 3 - serial 00 - subject C=NL, O=PolarSSL, CN=PolarSSL Test CA - flags 0x0000\ndepth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA - flags 0x0000\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x0000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x0000\n"
 
 X509 Certificate verification callback: two intermediates, top int trusted
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C
-x509_verify_callback:"data_files/server10_int3_int-ca2.crt":"data_files/test-int-ca2.crt":0:"depth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3\ndepth 0 - serial 4B - subject CN=localhost\n"
+x509_verify_callback:"data_files/server10_int3_int-ca2.crt":"data_files/test-int-ca2.crt":0:"depth 2 - serial 0F - subject C=NL, O=PolarSSL, CN=PolarSSL Test Intermediate EC CA - flags 0x0000\ndepth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x0000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x0000\n"
 
 X509 Certificate verification callback: two intermediates, low int trusted
 depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_ECDSA_C:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_SECP384R1_ENABLED:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15:MBEDTLS_SHA256_C:MBEDTLS_SHA1_C
-x509_verify_callback:"data_files/server10_int3_int-ca2_ca.crt":"data_files/test-int-ca3.crt":0:"depth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3\ndepth 0 - serial 4B - subject CN=localhost\n"
+x509_verify_callback:"data_files/server10_int3_int-ca2_ca.crt":"data_files/test-int-ca3.crt":0:"depth 1 - serial 4D - subject C=UK, O=mbed TLS, CN=mbed TLS Test intermediate CA 3 - flags 0x0000\ndepth 0 - serial 4B - subject CN=localhost - flags 0x0000\n"
 
 X509 Parse Selftest
 depends_on:MBEDTLS_SHA1_C:MBEDTLS_PEM_PARSE_C:MBEDTLS_CERTS_C:MBEDTLS_RSA_C:MBEDTLS_PKCS1_V15
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index d8f57c9..5aef372 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -145,7 +145,7 @@
     ret = mbedtls_x509_dn_gets( p, n, &crt->subject );
     MBEDTLS_X509_SAFE_SNPRINTF;
 
-    ret = mbedtls_snprintf( p, n, "\n" );
+    ret = mbedtls_snprintf( p, n, " - flags 0x%04x\n", *flags );
     MBEDTLS_X509_SAFE_SNPRINTF;
 
     ctx->p = p;