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/*
* Copyright (c) 2010 Tomas Mraz <tmraz@redhat.com>
*
* 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, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* ALTERNATIVELY, this product may be distributed under the terms of
* the GNU Public License, in which case the provisions of the GPL are
* required INSTEAD OF the above restrictions. (This clause is
* necessary due to a potential bad interaction between the GPL and
* the restrictions contained in a BSD-style copyright.)
*
* THIS SOFTWARE IS PROVIDED ``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.
*/
/*
* faillock.h - authentication failure data file record structure
*
* Each record in the file represents an instance of login failure of
* the user at the recorded time.
*/
#ifndef _FAILLOCK_H
#define _FAILLOCK_H
#include <stdint.h>
#include <sys/types.h>
#define TALLY_STATUS_VALID 0x1 /* the tally file entry is valid */
#define TALLY_STATUS_RHOST 0x2 /* the source is rhost */
#define TALLY_STATUS_TTY 0x4 /* the source is tty */
/* If neither TALLY_FLAG_RHOST nor TALLY_FLAG_TTY are set the source is service. */
struct tally {
char source[52]; /* rhost or tty of the login failure */
/* (not necessarily NULL terminated) */
uint16_t reserved; /* reserved for future use */
uint16_t status; /* record status */
uint64_t time; /* time of the login failure */
};
/* 64 bytes per entry */
struct tally_data {
struct tally *records; /* array of tallies */
unsigned int count; /* number of records */
};
#define FAILLOCK_DEFAULT_TALLYDIR "/var/run/faillock"
#define FAILLOCK_DEFAULT_CONF "/etc/security/faillock.conf"
int open_tally(const char *dir, const char *user, uid_t uid, int create);
int read_tally(int fd, struct tally_data *tallies);
int update_tally(int fd, struct tally_data *tallies);
#endif
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