diff options
Diffstat (limited to 'src/libstrongswan/plugins/x509/x509_cert.c')
| -rw-r--r-- | src/libstrongswan/plugins/x509/x509_cert.c | 162 |
1 files changed, 123 insertions, 39 deletions
diff --git a/src/libstrongswan/plugins/x509/x509_cert.c b/src/libstrongswan/plugins/x509/x509_cert.c index b77c5db4d..b3d90c5f6 100644 --- a/src/libstrongswan/plugins/x509/x509_cert.c +++ b/src/libstrongswan/plugins/x509/x509_cert.c @@ -280,13 +280,14 @@ static const asn1Object_t basicConstraintsObjects[] = { /** * Extracts the basicConstraints extension */ -static void parse_basicConstraints(chunk_t blob, int level0, +static bool parse_basicConstraints(chunk_t blob, int level0, private_x509_cert_t *this) { asn1_parser_t *parser; chunk_t object; int objectID; bool isCA = FALSE; + bool success; parser = asn1_parser_create(basicConstraintsObjects, blob); parser->set_top_level(parser, level0); @@ -313,7 +314,10 @@ static void parse_basicConstraints(chunk_t blob, int level0, break; } } + success = parser->success(parser); parser->destroy(parser); + + return success; } /** @@ -502,11 +506,14 @@ static const asn1Object_t generalNamesObjects[] = { /** * Extracts one or several GNs and puts them into a chained list */ -void x509_parse_generalNames(chunk_t blob, int level0, bool implicit, linked_list_t *list) +bool x509_parse_generalNames(chunk_t blob, int level0, bool implicit, + linked_list_t *list) { asn1_parser_t *parser; chunk_t object; + identification_t *gn; int objectID; + bool success = FALSE; parser = asn1_parser_create(generalNamesObjects, blob); parser->set_top_level(parser, level0); @@ -516,16 +523,20 @@ void x509_parse_generalNames(chunk_t blob, int level0, bool implicit, linked_lis { if (objectID == GENERAL_NAMES_GN) { - identification_t *gn = parse_generalName(object, - parser->get_level(parser)+1); - - if (gn) + gn = parse_generalName(object, parser->get_level(parser)+1); + if (!gn) { - list->insert_last(list, (void *)gn); + goto end; } + list->insert_last(list, (void *)gn); } } + success = parser->success(parser); + +end: parser->destroy(parser); + + return success; } /** @@ -579,6 +590,7 @@ chunk_t x509_parse_authorityKeyIdentifier(chunk_t blob, int level0, } } parser->destroy(parser); + return authKeyIdentifier; } @@ -599,13 +611,14 @@ static const asn1Object_t authInfoAccessObjects[] = { /** * Extracts an authorityInfoAcess location */ -static void parse_authorityInfoAccess(chunk_t blob, int level0, +static bool parse_authorityInfoAccess(chunk_t blob, int level0, private_x509_cert_t *this) { asn1_parser_t *parser; chunk_t object; int objectID; int accessMethod = OID_UNKNOWN; + bool success = FALSE; parser = asn1_parser_create(authInfoAccessObjects, blob); parser->set_top_level(parser, level0); @@ -653,9 +666,12 @@ static void parse_authorityInfoAccess(chunk_t blob, int level0, break; } } + success = parser->success(parser); end: parser->destroy(parser); + + return success; } /** @@ -726,12 +742,13 @@ static const asn1Object_t extendedKeyUsageObjects[] = { /** * Extracts extendedKeyUsage OIDs */ -static void parse_extendedKeyUsage(chunk_t blob, int level0, +static bool parse_extendedKeyUsage(chunk_t blob, int level0, private_x509_cert_t *this) { asn1_parser_t *parser; chunk_t object; int objectID; + bool success; parser = asn1_parser_create(extendedKeyUsageObjects, blob); parser->set_top_level(parser, level0); @@ -762,7 +779,10 @@ static void parse_extendedKeyUsage(chunk_t blob, int level0, } } } + success = parser->success(parser); parser->destroy(parser); + + return success; } /** @@ -836,13 +856,14 @@ static void add_cdps(linked_list_t *list, linked_list_t *uris, /** * Extracts one or several crlDistributionPoints into a list */ -void x509_parse_crlDistributionPoints(chunk_t blob, int level0, +bool x509_parse_crlDistributionPoints(chunk_t blob, int level0, linked_list_t *list) { linked_list_t *uris, *issuers; asn1_parser_t *parser; chunk_t object; int objectID; + bool success = FALSE; uris = linked_list_create(); issuers = linked_list_create(); @@ -857,23 +878,32 @@ void x509_parse_crlDistributionPoints(chunk_t blob, int level0, add_cdps(list, uris, issuers); break; case CRL_DIST_POINTS_FULLNAME: - x509_parse_generalNames(object, parser->get_level(parser) + 1, - TRUE, uris); + if (!x509_parse_generalNames(object, + parser->get_level(parser) + 1, TRUE, uris)) + { + goto end; + } break; case CRL_DIST_POINTS_ISSUER: - x509_parse_generalNames(object, parser->get_level(parser) + 1, - TRUE, issuers); + if (!x509_parse_generalNames(object, + parser->get_level(parser) + 1, TRUE, issuers)) + { + goto end; + } break; default: break; } } - parser->destroy(parser); - + success = parser->success(parser); add_cdps(list, uris, issuers); +end: + parser->destroy(parser); uris->destroy(uris); issuers->destroy(issuers); + + return success; } /** @@ -896,13 +926,14 @@ static const asn1Object_t nameConstraintsObjects[] = { /** * Parse permitted/excluded nameConstraints */ -static void parse_nameConstraints(chunk_t blob, int level0, +static bool parse_nameConstraints(chunk_t blob, int level0, private_x509_cert_t *this) { asn1_parser_t *parser; identification_t *id; chunk_t object; int objectID; + bool success = FALSE; parser = asn1_parser_create(nameConstraintsObjects, blob); parser->set_top_level(parser, level0); @@ -913,23 +944,30 @@ static void parse_nameConstraints(chunk_t blob, int level0, { case NAME_CONSTRAINT_PERMITTED: id = parse_generalName(object, parser->get_level(parser) + 1); - if (id) + if (!id) { - this->permitted_names->insert_last(this->permitted_names, id); + goto end; } + this->permitted_names->insert_last(this->permitted_names, id); break; case NAME_CONSTRAINT_EXCLUDED: id = parse_generalName(object, parser->get_level(parser) + 1); - if (id) + if (!id) { - this->excluded_names->insert_last(this->excluded_names, id); + goto end; } + this->excluded_names->insert_last(this->excluded_names, id); break; default: break; } } + success = parser->success(parser); + +end: parser->destroy(parser); + + return success; } /** @@ -959,13 +997,14 @@ static const asn1Object_t certificatePoliciesObject[] = { /** * Parse certificatePolicies */ -static void parse_certificatePolicies(chunk_t blob, int level0, +static bool parse_certificatePolicies(chunk_t blob, int level0, private_x509_cert_t *this) { x509_cert_policy_t *policy = NULL; asn1_parser_t *parser; chunk_t object; int objectID, qualifier = OID_UNKNOWN; + bool success; parser = asn1_parser_create(certificatePoliciesObject, blob); parser->set_top_level(parser, level0); @@ -998,7 +1037,10 @@ static void parse_certificatePolicies(chunk_t blob, int level0, break; } } + success = parser->success(parser); parser->destroy(parser); + + return success; } /** @@ -1019,13 +1061,14 @@ static const asn1Object_t policyMappingsObjects[] = { /** * Parse policyMappings */ -static void parse_policyMappings(chunk_t blob, int level0, +static bool parse_policyMappings(chunk_t blob, int level0, private_x509_cert_t *this) { x509_policy_mapping_t *map = NULL; asn1_parser_t *parser; chunk_t object; int objectID; + bool success; parser = asn1_parser_create(policyMappingsObjects, blob); parser->set_top_level(parser, level0); @@ -1054,7 +1097,10 @@ static void parse_policyMappings(chunk_t blob, int level0, break; } } + success = parser->success(parser); parser->destroy(parser); + + return success; } /** @@ -1076,12 +1122,13 @@ static const asn1Object_t policyConstraintsObjects[] = { /** * Parse policyConstraints */ -static void parse_policyConstraints(chunk_t blob, int level0, +static bool parse_policyConstraints(chunk_t blob, int level0, private_x509_cert_t *this) { asn1_parser_t *parser; chunk_t object; int objectID; + bool success; parser = asn1_parser_create(policyConstraintsObjects, blob); parser->set_top_level(parser, level0); @@ -1100,7 +1147,10 @@ static void parse_policyConstraints(chunk_t blob, int level0, break; } } + success = parser->success(parser); parser->destroy(parser); + + return success; } /** @@ -1171,7 +1221,7 @@ static bool check_address_object(ts_type_t ts_type, chunk_t object) return TRUE; } -static void parse_ipAddrBlocks(chunk_t blob, int level0, +static bool parse_ipAddrBlocks(chunk_t blob, int level0, private_x509_cert_t *this) { asn1_parser_t *parser; @@ -1179,6 +1229,7 @@ static void parse_ipAddrBlocks(chunk_t blob, int level0, ts_type_t ts_type = 0; traffic_selector_t *ts; int objectID; + bool success = FALSE; parser = asn1_parser_create(ipAddrBlocksObjects, blob); parser->set_top_level(parser, level0); @@ -1240,10 +1291,13 @@ static void parse_ipAddrBlocks(chunk_t blob, int level0, break; } } + success = parser->success(parser); this->flags |= X509_IP_ADDR_BLOCKS; end: parser->destroy(parser); + + return success; } /** @@ -1387,43 +1441,73 @@ static bool parse_certificate(private_x509_cert_t *this) this->subjectKeyIdentifier = object; break; case OID_SUBJECT_ALT_NAME: - x509_parse_generalNames(object, level, FALSE, - this->subjectAltNames); + if (!x509_parse_generalNames(object, level, FALSE, + this->subjectAltNames)) + { + goto end; + } break; case OID_BASIC_CONSTRAINTS: - parse_basicConstraints(object, level, this); + if (!parse_basicConstraints(object, level, this)) + { + goto end; + } break; case OID_CRL_DISTRIBUTION_POINTS: - x509_parse_crlDistributionPoints(object, level, - this->crl_uris); + if (!x509_parse_crlDistributionPoints(object, level, + this->crl_uris)) + { + goto end; + } break; case OID_AUTHORITY_KEY_ID: - this->authKeyIdentifier = x509_parse_authorityKeyIdentifier(object, - level, &this->authKeySerialNumber); + this->authKeyIdentifier = x509_parse_authorityKeyIdentifier( + object, level, &this->authKeySerialNumber); break; case OID_AUTHORITY_INFO_ACCESS: - parse_authorityInfoAccess(object, level, this); + if (!parse_authorityInfoAccess(object, level, this)) + { + goto end; + } break; case OID_KEY_USAGE: parse_keyUsage(object, this); break; case OID_EXTENDED_KEY_USAGE: - parse_extendedKeyUsage(object, level, this); + if (!parse_extendedKeyUsage(object, level, this)) + { + goto end; + } break; case OID_IP_ADDR_BLOCKS: - parse_ipAddrBlocks(object, level, this); + if (!parse_ipAddrBlocks(object, level, this)) + { + goto end; + } break; case OID_NAME_CONSTRAINTS: - parse_nameConstraints(object, level, this); + if (!parse_nameConstraints(object, level, this)) + { + goto end; + } break; case OID_CERTIFICATE_POLICIES: - parse_certificatePolicies(object, level, this); + if (!parse_certificatePolicies(object, level, this)) + { + goto end; + } break; case OID_POLICY_MAPPINGS: - parse_policyMappings(object, level, this); + if (!parse_policyMappings(object, level, this)) + { + goto end; + } break; case OID_POLICY_CONSTRAINTS: - parse_policyConstraints(object, level, this); + if (!parse_policyConstraints(object, level, this)) + { + goto end; + } break; case OID_INHIBIT_ANY_POLICY: if (!asn1_parse_simple_object(&object, ASN1_INTEGER, |