diff options
Diffstat (limited to 'src/libstrongswan/asn1/asn1.c')
| -rw-r--r-- | src/libstrongswan/asn1/asn1.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/src/libstrongswan/asn1/asn1.c b/src/libstrongswan/asn1/asn1.c index 8b9dc1c48..3f3a5c587 100644 --- a/src/libstrongswan/asn1/asn1.c +++ b/src/libstrongswan/asn1/asn1.c @@ -33,7 +33,15 @@ const chunk_t ASN1_INTEGER_1 = chunk_from_chars(0x02, 0x01, 0x01); const chunk_t ASN1_INTEGER_2 = chunk_from_chars(0x02, 0x01, 0x02); /* - * Defined in header. + * Described in header + */ +chunk_t asn1_algorithmIdentifier_params(int oid, chunk_t params) +{ + return asn1_wrap(ASN1_SEQUENCE, "mm", asn1_build_known_oid(oid), params); +} + +/* + * Described in header */ chunk_t asn1_algorithmIdentifier(int oid) { @@ -55,7 +63,7 @@ chunk_t asn1_algorithmIdentifier(int oid) parameters = asn1_simple_object(ASN1_NULL, chunk_empty); break; } - return asn1_wrap(ASN1_SEQUENCE, "mm", asn1_build_known_oid(oid), parameters); + return asn1_algorithmIdentifier_params(oid, parameters); } /* @@ -609,6 +617,26 @@ uint64_t asn1_parse_integer_uint64(chunk_t blob) return val; } +/* + * Described in header + */ +chunk_t asn1_integer_from_uint64(uint64_t val) +{ + u_char buf[sizeof(val)]; + chunk_t enc = chunk_empty; + + if (val < 0x100) + { + buf[0] = (u_char)val; + return chunk_clone(chunk_create(buf, 1)); + } + for (enc.ptr = buf + sizeof(val); val; enc.len++, val >>= 8) + { /* fill the buffer from the end */ + *(--enc.ptr) = val & 0xff; + } + return chunk_clone(enc); +} + /** * ASN.1 definition of an algorithmIdentifier */ |