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/*
* Copyright (C) 2017 Cumulus Networks, Inc.
* All rights reserved.
* Author: Dave Olson <olson@cumulusnetworks.com>
*
* 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 2 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 - see the file COPYING.
*/
/*
* This is the header file for the common code used by the nss_mapuser and
* nss_mapuid NSS plugin library. None of it's symbols are public, they are
* stripped during the linking phase (made internal only).
*/
#include <string.h>
#include <syslog.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <pwd.h>
#include <errno.h>
#include <ctype.h>
#include <nss.h>
/*
* pwbuf is used to reduce number of arguments passed around; the strings in
* the passwd struct need to point into this buffer.
*/
struct pwbuf {
char *name;
char *buf;
struct passwd *pw;
int *errnop;
size_t buflen;
};
/* configuration variables. */
extern char *exclude_users;
extern char *mappeduser;
extern char *mapped_priv_user;
extern uid_t map_min_uid;
extern int map_debug;
extern int nss_mapuser_config(int *errnop, const char *lname);
extern uint32_t get_sessionid(void);
extern int skip_program(void);
extern int find_mappingfile(struct pwbuf *pb, uid_t uid);
extern int find_mapped_name(struct pwbuf *pb, uid_t uid, uint32_t session);
extern int make_mapuser(struct pwbuf *pb, const char *name);
extern int map_init_common(int *errnop, const char *plugname);
extern char **fixup_gr_mem(const char *name, const char **gr_in, char *buf,
size_t * lp, int *err, unsigned privbits);
extern void cleanup_gr_mem(void);
#define PRIV_MATCH 2
#define UNPRIV_MATCH 1
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