Implementation of get_ad_tkt using krb524_convert_creds_kdc.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2992 ec53bebd-3082-4978-b11e-865c3cabbd6b
1997-08-15 01:50:06 +00:00
parent 61622fc250
commit d87dbf38be
1 changed files with 120 additions and 0 deletions
--- a/lib/45/get_ad_tkt.c
+++ b/lib/45/get_ad_tkt.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 1997 Kungliga Tekniska H<>gskolan
+ * (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. All advertising materials mentioning features or use of this software 
+ *    must display the following acknowledgement: 
+ *      This product includes software developed by Kungliga Tekniska 
+ *      H<>gskolan and its contributors. 
+ *
+ * 4. 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 "45_locl.h"
+
+RCSID("$Id$");
+
+/* get an additional version 4 ticket via the 524 protocol */
+
+#ifndef NEVERDATE
+#define NEVERDATE ((unsigned long)0x7fffffffL)
+#endif
+
+int
+get_ad_tkt(char *service, char *sinstance, char *realm, int lifetime)
+{
+    krb5_error_code ret;
+    int code;
+    krb5_context context;
+    krb5_ccache id;
+    krb5_creds in_creds, *out_creds;
+    CREDENTIALS cred;
+    time_t now;
+    char pname[ANAME_SZ], pinst[INST_SZ], prealm[REALM_SZ];
+    
+    ret = krb5_init_context(&context);
+    if(ret)
+	return KFAILURE;
+    ret = krb5_cc_default(context, &id);
+    if(ret){
+	krb5_free_context(context);
+	return KFAILURE;
+    }
+    memset(&in_creds, 0, sizeof(in_creds));
+    now = time(NULL);
+    in_creds.times.endtime = krb_life_to_time(time(NULL), lifetime);
+    if(in_creds.times.endtime == NEVERDATE)
+	in_creds.times.endtime = 0;
+    ret = krb5_cc_get_principal(context, id, &in_creds.client);
+    if(ret){
+	krb5_cc_close(context, id);
+	krb5_free_context(context);
+	return KFAILURE;
+    }
+    ret = krb5_524_conv_principal(context, in_creds.client, 
+				  pname, pinst, prealm);
+    if(ret){
+	krb5_free_principal(context, in_creds.client);
+	krb5_cc_close(context, id);
+	krb5_free_context(context);
+	return KFAILURE;
+    }
+    ret = krb5_425_conv_principal(context, service, sinstance, realm, 
+				  &in_creds.server);
+    if(ret){
+	krb5_free_principal(context, in_creds.client);
+	krb5_cc_close(context, id);
+	krb5_free_context(context);
+	return KFAILURE;
+    }
+    ret = krb5_get_credentials(context, 
+			       0, 
+			       id,
+			       &in_creds,
+			       &out_creds);
+    krb5_cc_close(context, id);
+    krb5_free_principal(context, in_creds.client);
+    krb5_free_principal(context, in_creds.server);
+    if(ret){
+	krb5_free_context(context);
+	return KFAILURE;
+    }
+    ret = krb524_convert_creds_kdc(context, out_creds, &cred);
+    krb5_free_context(context);
+    krb5_free_creds(context, out_creds);
+    if(ret)
+	return KFAILURE;
+    code = save_credentials(cred.service, cred.instance, cred.realm, 
+			    cred.session, cred.lifetime, cred.kvno, 
+			    &cred.ticket_st, now);
+    if(code == NO_TKT_FIL)
+	code = tf_setup(&cred, pname, pinst);
+    memset(&cred.session, 0, sizeof(cred.session));
+    return code;
+}