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replace cert by this in parse_certificate()

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This commit is contained in:
Andreas Steffen
2007-04-12 18:57:33 +00:00
parent f5ce017b0d
commit 56352fca2f
1 changed files with 37 additions and 68 deletions
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src/libstrongswan/crypto/x509.c
+37 -68
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@@ -254,19 +254,6 @@ static const asn1Object_t basicConstraintsObjects[] = {
#define BASIC_CONSTRAINTS_CA 1
#define BASIC_CONSTRAINTS_ROOF 4
/**
* ASN.1 definition of time
*/
static const asn1Object_t timeObjects[] = {
{ 0, "utcTime", ASN1_UTCTIME, ASN1_OPT|ASN1_BODY }, /* 0 */
{ 0, "end opt", ASN1_EOC, ASN1_END }, /* 1 */
{ 0, "generalizeTime",ASN1_GENERALIZEDTIME, ASN1_OPT|ASN1_BODY }, /* 2 */
{ 0, "end opt", ASN1_EOC, ASN1_END } /* 3 */
};
#define TIME_UTC 0
#define TIME_GENERALIZED 2
#define TIME_ROOF 4
/**
* ASN.1 definition of a keyIdentifier
*/
@@ -576,33 +563,6 @@ static void parse_generalNames(chunk_t blob, int level0, bool implicit, linked_l
return;
}
/**
* extracts and converts a UTCTIME or GENERALIZEDTIME object
*/
time_t parse_time(chunk_t blob, int level0)
{
asn1_ctx_t ctx;
chunk_t object;
u_int level;
int objectID = 0;
asn1_init(&ctx, blob, level0, FALSE, FALSE);
while (objectID < TIME_ROOF)
{
if (!extract_object(timeObjects, &objectID, &object, &level, &ctx))
return 0;
if (objectID == TIME_UTC || objectID == TIME_GENERALIZED)
{
return asn1totime(&object, (objectID == TIME_UTC)
? ASN1_UTCTIME : ASN1_GENERALIZEDTIME);
}
objectID++;
}
return 0;
}
/**
* extracts a keyIdentifier
*/
@@ -629,7 +589,11 @@ void parse_authorityKeyIdentifier(chunk_t blob, int level0 , chunk_t *authKeyID,
u_int level;
int objectID = 0;
*authKeyID = chunk_empty;
*authKeySerialNumber = chunk_empty;
asn1_init(&ctx, blob, level0, FALSE, FALSE);
while (objectID < AUTH_KEY_ID_ROOF)
{
if (!extract_object(authorityKeyIdentifierObjects, &objectID, &object, &level, &ctx))
@@ -768,7 +732,7 @@ static void parse_crlDistributionPoints(chunk_t blob, int level0, linked_list_t
/**
* Parses an X.509v3 certificate
*/
static bool parse_certificate(chunk_t blob, u_int level0, private_x509_t *cert)
static bool parse_certificate(chunk_t blob, u_int level0, private_x509_t *this)
{
asn1_ctx_t ctx;
bool critical;
@@ -778,44 +742,48 @@ static bool parse_certificate(chunk_t blob, u_int level0, private_x509_t *cert)
int objectID = 0;
asn1_init(&ctx, blob, level0, FALSE, FALSE);
while (objectID < X509_OBJ_ROOF)
{
if (!extract_object(certObjects, &objectID, &object, &level, &ctx))
{
return FALSE;
}
/* those objects which will parsed further need the next higher level */
level++;
switch (objectID) {
switch (objectID)
{
case X509_OBJ_CERTIFICATE:
cert->certificate = object;
this->certificate = object;
break;
case X509_OBJ_TBS_CERTIFICATE:
cert->tbsCertificate = object;
this->tbsCertificate = object;
break;
case X509_OBJ_VERSION:
cert->version = (object.len) ? (1+(u_int)*object.ptr) : 1;
DBG2(" v%d", cert->version);
this->version = (object.len) ? (1+(u_int)*object.ptr) : 1;
DBG2(" v%d", this->version);
break;
case X509_OBJ_SERIAL_NUMBER:
cert->serialNumber = object;
this->serialNumber = object;
break;
case X509_OBJ_SIG_ALG:
cert->sigAlg = parse_algorithmIdentifier(object, level, NULL);
this->sigAlg = parse_algorithmIdentifier(object, level, NULL);
break;
case X509_OBJ_ISSUER:
cert->issuer = identification_create_from_encoding(ID_DER_ASN1_DN, object);
DBG2(" '%D'", cert->issuer);
this->issuer = identification_create_from_encoding(ID_DER_ASN1_DN, object);
DBG2(" '%D'", this->issuer);
break;
case X509_OBJ_NOT_BEFORE:
cert->notBefore = parse_time(object, level);
this->notBefore = parse_time(object, level);
break;
case X509_OBJ_NOT_AFTER:
cert->notAfter = parse_time(object, level);
this->notAfter = parse_time(object, level);
break;
case X509_OBJ_SUBJECT:
cert->subject = identification_create_from_encoding(ID_DER_ASN1_DN, object);
DBG2(" '%D'", cert->subject);
this->subject = identification_create_from_encoding(ID_DER_ASN1_DN, object);
DBG2(" '%D'", this->subject);
break;
case X509_OBJ_SUBJECT_PUBLIC_KEY_ALGORITHM:
if (parse_algorithmIdentifier(object, level, NULL) != OID_RSA_ENCRYPTION)
@@ -837,7 +805,7 @@ static bool parse_certificate(chunk_t blob, u_int level0, private_x509_t *cert)
}
break;
case X509_OBJ_RSA_PUBLIC_KEY:
cert->subjectPublicKey = object;
this->subjectPublicKey = object;
break;
case X509_OBJ_EXTN_ID:
extn_oid = known_oid(object);
@@ -848,27 +816,28 @@ static bool parse_certificate(chunk_t blob, u_int level0, private_x509_t *cert)
break;
case X509_OBJ_EXTN_VALUE:
{
switch (extn_oid) {
switch (extn_oid)
{
case OID_SUBJECT_KEY_ID:
cert->subjectKeyID = chunk_clone(parse_keyIdentifier(object, level, FALSE));
this->subjectKeyID = chunk_clone(parse_keyIdentifier(object, level, FALSE));
break;
case OID_SUBJECT_ALT_NAME:
parse_generalNames(object, level, FALSE, cert->subjectAltNames);
parse_generalNames(object, level, FALSE, this->subjectAltNames);
break;
case OID_BASIC_CONSTRAINTS:
cert->isCA = parse_basicConstraints(object, level);
this->isCA = parse_basicConstraints(object, level);
break;
case OID_CRL_DISTRIBUTION_POINTS:
parse_crlDistributionPoints(object, level, cert->crlDistributionPoints);
parse_crlDistributionPoints(object, level, this->crlDistributionPoints);
break;
case OID_AUTHORITY_KEY_ID:
parse_authorityKeyIdentifier(object, level , &cert->authKeyID, &cert->authKeySerialNumber);
parse_authorityKeyIdentifier(object, level , &this->authKeyID, &this->authKeySerialNumber);
break;
case OID_AUTHORITY_INFO_ACCESS:
parse_authorityInfoAccess(object, level, cert->ocspAccessLocations);
parse_authorityInfoAccess(object, level, this->ocspAccessLocations);
break;
case OID_EXTENDED_KEY_USAGE:
cert->isOcspSigner = parse_extendedKeyUsage(object, level);
this->isOcspSigner = parse_extendedKeyUsage(object, level);
break;
case OID_NS_REVOCATION_URL:
case OID_NS_CA_REVOCATION_URL:
@@ -883,10 +852,10 @@ static bool parse_certificate(chunk_t blob, u_int level0, private_x509_t *cert)
break;
}
case X509_OBJ_ALGORITHM:
cert->algorithm = parse_algorithmIdentifier(object, level, NULL);
this->algorithm = parse_algorithmIdentifier(object, level, NULL);
break;
case X509_OBJ_SIGNATURE:
cert->signature = object;
this->signature = object;
break;
default:
break;
@@ -894,15 +863,15 @@ static bool parse_certificate(chunk_t blob, u_int level0, private_x509_t *cert)
objectID++;
}
if (cert->subjectKeyID.ptr == NULL)
if (this->subjectKeyID.ptr == NULL)
{
hasher_t *hasher = hasher_create(HASH_SHA1);
hasher->allocate_hash(hasher, cert->subjectPublicKey, &cert->subjectKeyID);
hasher->allocate_hash(hasher, this->subjectPublicKey, &this->subjectKeyID);
hasher->destroy(hasher);
}
time(&cert->installed);
this->installed = time(NULL);
return TRUE;
}