diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/libstrongswan/plugins/x509/x509_cert.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/libstrongswan/plugins/x509/x509_cert.c b/src/libstrongswan/plugins/x509/x509_cert.c index cf85fe995..2422f43ce 100644 --- a/src/libstrongswan/plugins/x509/x509_cert.c +++ b/src/libstrongswan/plugins/x509/x509_cert.c @@ -819,6 +819,62 @@ static void parse_crlDistributionPoints(chunk_t blob, int level0, } /** + * ASN.1 definition of nameConstraints + */ +static const asn1Object_t nameConstraintsObjects[] = { + { 0, "nameConstraints", ASN1_SEQUENCE, ASN1_LOOP }, /* 0 */ + { 1, "permittedSubtrees", ASN1_CONTEXT_C_0, ASN1_OPT|ASN1_LOOP }, /* 1 */ + { 2, "generalSubtree", ASN1_SEQUENCE, ASN1_BODY }, /* 2 */ + { 1, "end loop", ASN1_EOC, ASN1_END }, /* 3 */ + { 1, "excludedSubtrees", ASN1_CONTEXT_C_1, ASN1_OPT|ASN1_LOOP }, /* 4 */ + { 2, "generalSubtree", ASN1_SEQUENCE, ASN1_BODY }, /* 5 */ + { 1, "end loop", ASN1_EOC, ASN1_END }, /* 6 */ + { 0, "end loop", ASN1_EOC, ASN1_END }, /* 7 */ + { 0, "exit", ASN1_EOC, ASN1_EXIT } +}; +#define NAME_CONSTRAINT_PERMITTED 2 +#define NAME_CONSTRAINT_EXCLUDED 5 + +/** + * Parse permitted/excluded nameConstraints + */ +static void parse_nameConstraints(chunk_t blob, int level0, + private_x509_cert_t *this) +{ + asn1_parser_t *parser; + identification_t *id; + chunk_t object; + int objectID; + + parser = asn1_parser_create(nameConstraintsObjects, blob); + parser->set_top_level(parser, level0); + + while (parser->iterate(parser, &objectID, &object)) + { + switch (objectID) + { + case NAME_CONSTRAINT_PERMITTED: + id = parse_generalName(object, parser->get_level(parser) + 1); + if (id) + { + 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) + { + this->excluded_names->insert_last(this->excluded_names, id); + } + break; + default: + break; + } + } + parser->destroy(parser); +} + +/** * ASN.1 definition of ipAddrBlocks according to RFC 3779 */ static const asn1Object_t ipAddrBlocksObjects[] = { @@ -1127,6 +1183,9 @@ static bool parse_certificate(private_x509_cert_t *this) case OID_IP_ADDR_BLOCKS: parse_ipAddrBlocks(object, level, this); break; + case OID_NAME_CONSTRAINTS: + parse_nameConstraints(object, level, this); + break; case OID_NS_REVOCATION_URL: case OID_NS_CA_REVOCATION_URL: case OID_NS_CA_POLICY_URL: |