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diff --git a/audit.h b/audit.h
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+/* $Id: audit.h,v 1.2 2005/02/08 10:52:48 dtucker Exp $ */
+
+/*
+ * Copyright (c) 2004, 2005 Darren Tucker.  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 "auth.h"
+
+#ifndef _SSH_AUDIT_H
+# define _SSH_AUDIT_H
+enum ssh_audit_event_type {
+        SSH_LOGIN_EXCEED_MAXTRIES,
+        SSH_LOGIN_ROOT_DENIED,
+        SSH_AUTH_SUCCESS,
+        SSH_AUTH_FAIL_NONE,
+        SSH_AUTH_FAIL_PASSWD,
+        SSH_AUTH_FAIL_KBDINT,   /* keyboard-interactive or challenge-response */
+        SSH_AUTH_FAIL_PUBKEY,   /* ssh2 pubkey or ssh1 rsa */
+        SSH_AUTH_FAIL_HOSTBASED,        /* ssh2 hostbased or ssh1 rhostsrsa */
+        SSH_AUTH_FAIL_GSSAPI,
+        SSH_INVALID_USER,
+        SSH_NOLOGIN,            /* denied by /etc/nologin, not implemented */
+        SSH_CONNECTION_CLOSE,   /* closed after attempting auth or session */
+        SSH_CONNECTION_ABANDON, /* closed without completing auth */
+        SSH_AUDIT_UNKNOWN
+};
+typedef enum ssh_audit_event_type ssh_audit_event_t;
+
+void    audit_connection_from(const char *, int);
+void    audit_event(ssh_audit_event_t);
+void    audit_session_open(const char *);
+void    audit_session_close(const char *);
+void    audit_run_command(const char *);
+ssh_audit_event_t audit_classify_auth(const char *);
+
+#endif /* _SSH_AUDIT_H */