- markus@cvs.openbsd.org 2003/05/14 02:15:47

     [auth2.c monitor.c sshconnect2.c auth2-krb5.c]
     implement kerberos over ssh2 ("kerberos-2@ssh.com"); tested with jakob@
     server interops with commercial client; ok jakob@ djm@

1 files changed, 66 insertions, 0 deletions

diff --git a/auth2-krb5.c b/auth2-krb5.c
new file mode 100644
index 000000000..ea4d76da0
--- /dev/null
+++ b/auth2-krb5.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2003 Markus Friedl.  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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "includes.h"
+RCSID("$OpenBSD: auth2-krb5.c,v 1.1 2003/05/14 02:15:47 markus Exp $");
+
+#include <krb5.h>
+
+#include "ssh2.h"
+#include "xmalloc.h"
+#include "packet.h"
+#include "log.h"
+#include "auth.h"
+#include "monitor_wrap.h"
+#include "servconf.h"
+
+/* import */
+extern ServerOptions options;
+
+static int
+userauth_kerberos(Authctxt *authctxt)
+{
+        krb5_data tkt, reply;
+        char *client = NULL;
+        int authenticated = 0;
+
+        tkt.data = packet_get_string(&tkt.length);
+        packet_check_eom();
+
+        if (PRIVSEP(auth_krb5(authctxt, &tkt, &client, &reply))) {
+                authenticated = 1;
+                if (reply.length)
+                        xfree(reply.data);
+        }
+        if (client)
+                xfree(client);
+        xfree(tkt.data);
+        return (authenticated);
+}
+
+Authmethod method_kerberos = {
+        "kerberos-2@ssh.com",
+        userauth_kerberos,
+        &options.kerberos_authentication
+};