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X.509: Add parsing of alternative name to internal TLS implementation

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The alternative name extensions are now parsed, but the actual values
are not yet used for alt. subject name matching.
This commit is contained in:
Jouni Malinen 2009-06-11 23:47:35 +03:00
parent 4625a47f4b
commit efe22727da
4 changed files with 254 additions and 16 deletions
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38
src/tls/asn1.c
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@ -85,28 +85,16 @@ int asn1_get_next(const u8 *buf, size_t len, struct asn1_hdr *hdr)
}
int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
const u8 **next)
int asn1_parse_oid(const u8 *buf, size_t len, struct asn1_oid *oid)
{
struct asn1_hdr hdr;
const u8 *pos, *end;
unsigned long val;
u8 tmp;
os_memset(oid, 0, sizeof(*oid));
if (asn1_get_next(buf, len, &hdr) < 0 || hdr.length == 0)
return -1;
if (hdr.class != ASN1_CLASS_UNIVERSAL || hdr.tag != ASN1_TAG_OID) {
wpa_printf(MSG_DEBUG, "ASN.1: Expected OID - found class %d "
"tag 0x%x", hdr.class, hdr.tag);
return -1;
}
pos = hdr.payload;
end = hdr.payload + hdr.length;
*next = end;
pos = buf;
end = buf + len;
while (pos < end) {
val = 0;
@ -141,6 +129,26 @@ int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
}
int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
const u8 **next)
{
struct asn1_hdr hdr;
if (asn1_get_next(buf, len, &hdr) < 0 || hdr.length == 0)
return -1;
if (hdr.class != ASN1_CLASS_UNIVERSAL || hdr.tag != ASN1_TAG_OID) {
wpa_printf(MSG_DEBUG, "ASN.1: Expected OID - found class %d "
"tag 0x%x", hdr.class, hdr.tag);
return -1;
}
*next = hdr.payload + hdr.length;
return asn1_parse_oid(hdr.payload, hdr.length, oid);
}
void asn1_oid_to_str(struct asn1_oid *oid, char *buf, size_t len)
{
char *pos = buf;