r8302: import mini HEIMDAL into the tree

(This used to be commit 118be28a7aef233799956615a99d1a2a74dac175)

1 files changed, 215 insertions, 0 deletions

diff --git a/source4/heimdal/lib/krb5/creds.c b/source4/heimdal/lib/krb5/creds.c
new file mode 100644
index 0000000000..2afd0725f1
--- /dev/null
+++ b/source4/heimdal/lib/krb5/creds.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 1997 - 2005 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: creds.c,v 1.20 2005/05/18 04:21:04 lha Exp $");
+
+/* keep this for compatibility with older code */
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_free_creds_contents (krb5_context context, krb5_creds *c)
+{
+    return krb5_free_cred_contents (context, c);
+}    
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_free_cred_contents (krb5_context context, krb5_creds *c)
+{
+    krb5_free_principal (context, c->client);
+    c->client = NULL;
+    krb5_free_principal (context, c->server);
+    c->server = NULL;
+    krb5_free_keyblock_contents (context, &c->session);
+    krb5_data_free (&c->ticket);
+    krb5_data_free (&c->second_ticket);
+    free_AuthorizationData (&c->authdata);
+    krb5_free_addresses (context, &c->addresses);
+    memset(c, 0, sizeof(*c));
+    return 0;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_copy_creds_contents (krb5_context context,
+			  const krb5_creds *incred,
+			  krb5_creds *c)
+{
+    krb5_error_code ret;
+
+    memset(c, 0, sizeof(*c));
+    ret = krb5_copy_principal (context, incred->client, &c->client);
+    if (ret)
+	goto fail;
+    ret = krb5_copy_principal (context, incred->server, &c->server);
+    if (ret)
+	goto fail;
+    ret = krb5_copy_keyblock_contents (context, &incred->session, &c->session);
+    if (ret)
+	goto fail;
+    c->times = incred->times;
+    ret = krb5_data_copy (&c->ticket,
+			  incred->ticket.data,
+			  incred->ticket.length);
+    if (ret)
+	goto fail;
+    ret = krb5_data_copy (&c->second_ticket,
+			  incred->second_ticket.data,
+			  incred->second_ticket.length);
+    if (ret)
+	goto fail;
+    ret = copy_AuthorizationData(&incred->authdata, &c->authdata);
+    if (ret)
+	goto fail;
+    ret = krb5_copy_addresses (context,
+			       &incred->addresses,
+			       &c->addresses);
+    if (ret)
+	goto fail;
+    c->flags = incred->flags;
+    return 0;
+
+fail:
+    krb5_free_cred_contents (context, c);
+    return ret;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_copy_creds (krb5_context context,
+		 const krb5_creds *incred,
+		 krb5_creds **outcred)
+{
+    krb5_creds *c;
+
+    c = malloc (sizeof (*c));
+    if (c == NULL) {
+	krb5_set_error_string (context, "malloc: out of memory");
+	return ENOMEM;
+    }
+    memset (c, 0, sizeof(*c));
+    *outcred = c;
+    return krb5_copy_creds_contents (context, incred, c);
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_free_creds (krb5_context context, krb5_creds *c)
+{
+    krb5_free_cred_contents (context, c);
+    free (c);
+    return 0;
+}
+
+/* XXX these do not belong here */
+static krb5_boolean
+krb5_data_equal(const krb5_data *a, const krb5_data *b)
+{
+    if(a->length != b->length)
+	return FALSE;
+    return memcmp(a->data, b->data, a->length) == 0;
+}
+
+static krb5_boolean
+krb5_times_equal(const krb5_times *a, const krb5_times *b)
+{
+    return a->starttime == b->starttime &&
+	a->authtime == b->authtime &&
+	a->endtime == b->endtime &&
+	a->renew_till == b->renew_till;
+}
+
+/*
+ * Return TRUE if `mcreds' and `creds' are equal (`whichfields'
+ * determines what equal means).
+ */
+
+krb5_boolean KRB5_LIB_FUNCTION
+krb5_compare_creds(krb5_context context, krb5_flags whichfields,
+		   const krb5_creds * mcreds, const krb5_creds * creds)
+{
+    krb5_boolean match = TRUE;
+    
+    if (match && mcreds->server) {
+	if (whichfields & (KRB5_TC_DONT_MATCH_REALM | KRB5_TC_MATCH_SRV_NAMEONLY)) 
+	    match = krb5_principal_compare_any_realm (context, mcreds->server, 
+						      creds->server);
+	else
+	    match = krb5_principal_compare (context, mcreds->server, 
+					    creds->server);
+    }
+
+    if (match && mcreds->client) {
+	if(whichfields & KRB5_TC_DONT_MATCH_REALM)
+	    match = krb5_principal_compare_any_realm (context, mcreds->client, 
+						      creds->client);
+	else
+	    match = krb5_principal_compare (context, mcreds->client, 
+					    creds->client);
+    }
+	    
+    if (match && (whichfields & KRB5_TC_MATCH_KEYTYPE))
+	match = krb5_enctypes_compatible_keys(context,
+					      mcreds->session.keytype,
+					      creds->session.keytype);
+
+    if (match && (whichfields & KRB5_TC_MATCH_FLAGS_EXACT))
+	match = mcreds->flags.i == creds->flags.i;
+
+    if (match && (whichfields & KRB5_TC_MATCH_FLAGS))
+	match = (creds->flags.i & mcreds->flags.i) == mcreds->flags.i;
+
+    if (match && (whichfields & KRB5_TC_MATCH_TIMES_EXACT))
+	match = krb5_times_equal(&mcreds->times, &creds->times);
+    
+    if (match && (whichfields & KRB5_TC_MATCH_TIMES))
+	/* compare only expiration times */
+	match = (mcreds->times.renew_till <= creds->times.renew_till) &&
+	    (mcreds->times.endtime <= creds->times.endtime);
+
+    if (match && (whichfields & KRB5_TC_MATCH_AUTHDATA)) {
+	unsigned int i;
+	if(mcreds->authdata.len != creds->authdata.len)
+	    match = FALSE;
+	else
+	    for(i = 0; match && i < mcreds->authdata.len; i++)
+		match = (mcreds->authdata.val[i].ad_type == 
+			 creds->authdata.val[i].ad_type) &&
+		    krb5_data_equal(&mcreds->authdata.val[i].ad_data,
+				    &creds->authdata.val[i].ad_data);
+    }
+    if (match && (whichfields & KRB5_TC_MATCH_2ND_TKT))
+	match = krb5_data_equal(&mcreds->second_ticket, &creds->second_ticket);
+
+    if (match && (whichfields & KRB5_TC_MATCH_IS_SKEY))
+	match = ((mcreds->second_ticket.length == 0) == 
+		 (creds->second_ticket.length == 0));
+
+    return match;
+}