1 files changed, 103 insertions, 0 deletions
diff --git a/source4/kdc/mit-kdb/kdb_samba_common.c b/source4/kdc/mit-kdb/kdb_samba_common.c
new file mode 100644
index 0000000..5ba845e
--- /dev/null
+++ b/source4/kdc/mit-kdb/kdb_samba_common.c
@@ -0,0 +1,103 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Samba KDB plugin for MIT Kerberos
+
+   Copyright (c) 2010      Simo Sorce <idra@samba.org>.
+   Copyright (c) 2014      Andreas Schneider <asn@samba.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+#include "system/kerberos.h"
+
+#include <profile.h>
+#include <kdb.h>
+
+#include "kdc/mit_samba.h"
+#include "kdb_samba.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_KERBEROS
+
+struct mit_samba_context *ks_get_context(krb5_context kcontext)
+{
+	struct mit_samba_context *mit_ctx = NULL;
+	void *db_ctx = NULL;
+	krb5_error_code code;
+
+	code = krb5_db_get_context(kcontext, &db_ctx);
+	if (code != 0) {
+		return NULL;
+	}
+
+	mit_ctx = talloc_get_type_abort(db_ctx, struct mit_samba_context);
+
+	/*
+	 * This is nomrally the starting point for Kerberos operations in
+	 * MIT KRB5, so reset errno to 0 for possible com_err debug messages.
+	 */
+	errno = 0;
+
+	return mit_ctx;
+}
+
+bool ks_data_eq_string(krb5_data d, const char *s)
+{
+	int rc;
+
+	if (d.length != strlen(s) || d.length == 0) {
+		return false;
+	}
+
+	rc = memcmp(d.data, s, d.length);
+	if (rc != 0) {
+		return false;
+	}
+
+	return true;
+}
+
+krb5_boolean ks_is_kadmin(krb5_context context,
+			  krb5_const_principal princ)
+{
+	return krb5_princ_size(context, princ) >= 1 &&
+	       ks_data_eq_string(princ->data[0], "kadmin");
+}
+
+krb5_boolean ks_is_kadmin_history(krb5_context context,
+				  krb5_const_principal princ)
+{
+	return krb5_princ_size(context, princ) == 2 &&
+	       ks_data_eq_string(princ->data[0], "kadmin") &&
+	       ks_data_eq_string(princ->data[1], "history");
+}
+
+krb5_boolean ks_is_kadmin_changepw(krb5_context context,
+				   krb5_const_principal princ)
+{
+	return krb5_princ_size(context, princ) == 2 &&
+	       ks_data_eq_string(princ->data[0], "kadmin") &&
+	       ks_data_eq_string(princ->data[1], "changepw");
+}
+
+krb5_boolean ks_is_kadmin_admin(krb5_context context,
+				krb5_const_principal princ)
+{
+	return krb5_princ_size(context, princ) == 2 &&
+	       ks_data_eq_string(princ->data[0], "kadmin") &&
+	       ks_data_eq_string(princ->data[1], "admin");
+}