/*
parse a krb5 GSS-API wrapper packet giving a ticket
*/
static bool gensec_gssapi_parse_krb5_wrap(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, DATA_BLOB *ticket, uint8_t tok_id[2])
{
bool ret;
struct asn1_data *data = asn1_init(mem_ctx);
int data_remaining;
if (!data) {
return false;
}
asn1_load(data, *blob);
asn1_start_tag(data, ASN1_APPLICATION(0));
asn1_check_OID(data, GENSEC_OID_KERBEROS5);
data_remaining = asn1_tag_remaining(data);
if (data_remaining < 3) {
data->has_error = true;
} else {
asn1_read(data, tok_id, 2);
data_remaining -= 2;
*ticket = data_blob_talloc(mem_ctx, NULL, data_remaining);
asn1_read(data, ticket->data, ticket->length);
}
asn1_end_tag(data);
ret = !data->has_error;
asn1_free(data);
return ret;
}
/*
parse a krb5 GSS-API wrapper packet giving a ticket
*/
BOOL spnego_parse_krb5_wrap(DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
{
BOOL ret;
ASN1_DATA data;
int data_remaining;
asn1_load(&data, blob);
asn1_start_tag(&data, ASN1_APPLICATION(0));
asn1_check_OID(&data, OID_KERBEROS5);
data_remaining = asn1_tag_remaining(&data);
if (data_remaining < 3) {
data.has_error = True;
} else {
asn1_read(&data, tok_id, 2);
data_remaining -= 2;
*ticket = data_blob(NULL, data_remaining);
asn1_read(&data, ticket->data, ticket->length);
}
asn1_end_tag(&data);
ret = !data.has_error;
asn1_free(&data);
return ret;
}
/*
parse a krb5 GSS-API wrapper packet giving a ticket
*/
bool spnego_parse_krb5_wrap(TALLOC_CTX *ctx, DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
{
bool ret;
ASN1_DATA *data;
int data_remaining;
data = asn1_init(talloc_tos());
if (data == NULL) {
return false;
}
asn1_load(data, blob);
asn1_start_tag(data, ASN1_APPLICATION(0));
asn1_check_OID(data, OID_KERBEROS5);
data_remaining = asn1_tag_remaining(data);
if (data_remaining < 3) {
data->has_error = True;
} else {
asn1_read(data, tok_id, 2);
data_remaining -= 2;
*ticket = data_blob_talloc(ctx, NULL, data_remaining);
asn1_read(data, ticket->data, ticket->length);
}
asn1_end_tag(data);
ret = !data->has_error;
if (data->has_error) {
data_blob_free(ticket);
}
asn1_free(data);
return ret;
}
