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-rw-r--r--source4/heimdal/lib/krb5/creds.c215
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
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+++ b/source4/heimdal/lib/krb5/creds.c
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+/*
+ * 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;
+}
generated by cgit (git 2.34.1) at 2024-07-10 07:49:32 +0000