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-rw-r--r--source4/heimdal/lib/krb5/ticket.c274
1 files changed, 274 insertions, 0 deletions
diff --git a/source4/heimdal/lib/krb5/ticket.c b/source4/heimdal/lib/krb5/ticket.c
new file mode 100644
index 0000000000..77ce8cb221
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+++ b/source4/heimdal/lib/krb5/ticket.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "krb5_locl.h"
+
+RCSID("$Id$");
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_free_ticket(krb5_context context,
+ krb5_ticket *ticket)
+{
+ free_EncTicketPart(&ticket->ticket);
+ krb5_free_principal(context, ticket->client);
+ krb5_free_principal(context, ticket->server);
+ free(ticket);
+ return 0;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_copy_ticket(krb5_context context,
+ const krb5_ticket *from,
+ krb5_ticket **to)
+{
+ krb5_error_code ret;
+ krb5_ticket *tmp;
+
+ *to = NULL;
+ tmp = malloc(sizeof(*tmp));
+ if(tmp == NULL) {
+ krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
+ return ENOMEM;
+ }
+ if((ret = copy_EncTicketPart(&from->ticket, &tmp->ticket))){
+ free(tmp);
+ return ret;
+ }
+ ret = krb5_copy_principal(context, from->client, &tmp->client);
+ if(ret){
+ free_EncTicketPart(&tmp->ticket);
+ free(tmp);
+ return ret;
+ }
+ ret = krb5_copy_principal(context, from->server, &tmp->server);
+ if(ret){
+ krb5_free_principal(context, tmp->client);
+ free_EncTicketPart(&tmp->ticket);
+ free(tmp);
+ return ret;
+ }
+ *to = tmp;
+ return 0;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_ticket_get_client(krb5_context context,
+ const krb5_ticket *ticket,
+ krb5_principal *client)
+{
+ return krb5_copy_principal(context, ticket->client, client);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_ticket_get_server(krb5_context context,
+ const krb5_ticket *ticket,
+ krb5_principal *server)
+{
+ return krb5_copy_principal(context, ticket->server, server);
+}
+
+time_t KRB5_LIB_FUNCTION
+krb5_ticket_get_endtime(krb5_context context,
+ const krb5_ticket *ticket)
+{
+ return ticket->ticket.endtime;
+}
+
+static int
+find_type_in_ad(krb5_context context,
+ int type,
+ krb5_data *data,
+ krb5_boolean *found,
+ krb5_boolean failp,
+ krb5_keyblock *sessionkey,
+ const AuthorizationData *ad,
+ int level)
+{
+ krb5_error_code ret = 0;
+ int i;
+
+ if (level > 9) {
+ ret = ENOENT; /* XXX */
+ krb5_set_error_message(context, ret,
+ "Authorization data nested deeper "
+ "then %d levels, stop searching", level);
+ goto out;
+ }
+
+ /*
+ * Only copy out the element the first time we get to it, we need
+ * to run over the whole authorization data fields to check if
+ * there are any container clases we need to care about.
+ */
+ for (i = 0; i < ad->len; i++) {
+ if (!*found && ad->val[i].ad_type == type) {
+ ret = der_copy_octet_string(&ad->val[i].ad_data, data);
+ if (ret) {
+ krb5_set_error_message(context, ret, "malloc: out of memory");
+ goto out;
+ }
+ *found = TRUE;
+ continue;
+ }
+ switch (ad->val[i].ad_type) {
+ case KRB5_AUTHDATA_IF_RELEVANT: {
+ AuthorizationData child;
+ ret = decode_AuthorizationData(ad->val[i].ad_data.data,
+ ad->val[i].ad_data.length,
+ &child,
+ NULL);
+ if (ret) {
+ krb5_set_error_message(context, ret, "Failed to decode "
+ "IF_RELEVANT with %d", (int)ret);
+ goto out;
+ }
+ ret = find_type_in_ad(context, type, data, found, FALSE,
+ sessionkey, &child, level + 1);
+ free_AuthorizationData(&child);
+ if (ret)
+ goto out;
+ break;
+ }
+#if 0 /* XXX test */
+ case KRB5_AUTHDATA_KDC_ISSUED: {
+ AD_KDCIssued child;
+
+ ret = decode_AD_KDCIssued(ad->val[i].ad_data.data,
+ ad->val[i].ad_data.length,
+ &child,
+ NULL);
+ if (ret) {
+ krb5_set_error_message(context, ret, "Failed to decode "
+ "AD_KDCIssued with %d", ret);
+ goto out;
+ }
+ if (failp) {
+ krb5_boolean valid;
+ krb5_data buf;
+ size_t len;
+
+ ASN1_MALLOC_ENCODE(AuthorizationData, buf.data, buf.length,
+ &child.elements, &len, ret);
+ if (ret) {
+ free_AD_KDCIssued(&child);
+ krb5_clear_error_string(context);
+ goto out;
+ }
+ if(buf.length != len)
+ krb5_abortx(context, "internal error in ASN.1 encoder");
+
+ ret = krb5_c_verify_checksum(context, sessionkey, 19, &buf,
+ &child.ad_checksum, &valid);
+ krb5_data_free(&buf);
+ if (ret) {
+ free_AD_KDCIssued(&child);
+ goto out;
+ }
+ if (!valid) {
+ krb5_clear_error_string(context);
+ ret = ENOENT;
+ free_AD_KDCIssued(&child);
+ goto out;
+ }
+ }
+ ret = find_type_in_ad(context, type, data, found, failp, sessionkey,
+ &child.elements, level + 1);
+ free_AD_KDCIssued(&child);
+ if (ret)
+ goto out;
+ break;
+ }
+#endif
+ case KRB5_AUTHDATA_AND_OR:
+ if (!failp)
+ break;
+ ret = ENOENT; /* XXX */
+ krb5_set_error_message(context, ret, "Authorization data contains "
+ "AND-OR element that is unknown to the "
+ "application");
+ goto out;
+ default:
+ if (!failp)
+ break;
+ ret = ENOENT; /* XXX */
+ krb5_set_error_message(context, ret, "Authorization data contains "
+ "unknown type (%d) ", ad->val[i].ad_type);
+ goto out;
+ }
+ }
+out:
+ if (ret) {
+ if (*found) {
+ krb5_data_free(data);
+ *found = 0;
+ }
+ }
+ return ret;
+}
+
+/*
+ * Extract the authorization data type of `type' from the
+ * 'ticket'. Store the field in `data'. This function is to use for
+ * kerberos applications.
+ */
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_ticket_get_authorization_data_type(krb5_context context,
+ krb5_ticket *ticket,
+ int type,
+ krb5_data *data)
+{
+ AuthorizationData *ad;
+ krb5_error_code ret;
+ krb5_boolean found = FALSE;
+
+ krb5_data_zero(data);
+
+ ad = ticket->ticket.authorization_data;
+ if (ticket->ticket.authorization_data == NULL) {
+ krb5_set_error_message(context, ENOENT,
+ "Ticket have not authorization data");
+ return ENOENT; /* XXX */
+ }
+
+ ret = find_type_in_ad(context, type, data, &found, TRUE,
+ &ticket->ticket.key, ad, 0);
+ if (ret)
+ return ret;
+ if (!found) {
+ krb5_set_error_message(context, ENOENT, "Ticket have not "
+ "authorization data of type %d", type);
+ return ENOENT; /* XXX */
+ }
+ return 0;
+}
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