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parse RDNs in multiple SEQUENCEs in all SETs of a DN

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This commit is contained in:
Martin Willi
2009-08-03 15:24:48 +02:00
parent 5cb300e795
commit 3d2f73b92f
1 changed files with 24 additions and 16 deletions
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src/libstrongswan/utils/identification.c
+24 -16
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@@ -127,8 +127,10 @@ struct private_identification_t {
typedef struct {
/* implements enumerator interface */
enumerator_t public;
/* RDNs left to parse */
chunk_t left;
/* next set to parse, if any */
chunk_t sets;
/* next sequence in set, if any */
chunk_t seqs;
} rdn_enumerator_t;
/**
@@ -139,20 +141,25 @@ static bool rdn_enumerate(rdn_enumerator_t *this, chunk_t *oid,
{
chunk_t rdn;
/* a RDN is a SET of attribute-values, each is a SEQUENCE ... */
if (asn1_unwrap(&this->left, &rdn) == ASN1_SET &&
asn1_unwrap(&rdn, &rdn) == ASN1_SEQUENCE)
/* a DN contains one or more SET, each containing one or more SEQUENCES,
* each containing a OID/value RDN */
if (!this->seqs.len)
{
/* ... of an OID */
if (asn1_unwrap(&rdn, oid) == ASN1_OID)
/* no SEQUENCEs in current SET, parse next SET */
if (asn1_unwrap(&this->sets, &this->seqs) != ASN1_SET)
{
/* and a specific string type */
int t = asn1_unwrap(&rdn, data);
if (t != ASN1_INVALID)
{
*type = t;
return TRUE;
}
return FALSE;
}
}
if (asn1_unwrap(&this->seqs, &rdn) == ASN1_SEQUENCE &&
asn1_unwrap(&rdn, oid) == ASN1_OID)
{
int t = asn1_unwrap(&rdn, data);
if (t != ASN1_INVALID)
{
*type = t;
return TRUE;
}
}
return FALSE;
@@ -168,9 +175,10 @@ static enumerator_t* create_rdn_enumerator(chunk_t dn)
e->public.enumerate = (void*)rdn_enumerate;
e->public.destroy = (void*)free;
/* a DN is a sequence of RDNs */
if (asn1_unwrap(&dn, &e->left) == ASN1_SEQUENCE)
/* a DN is a SEQUENCE, get the first SET of it */
if (asn1_unwrap(&dn, &e->sets) == ASN1_SEQUENCE)
{
e->seqs = chunk_empty;
return &e->public;
}
free(e);