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yubico-pam/drop_privs.h

65 lines
2.2 KiB
C

/* Copyright (c) 2011-2014 Yubico AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT
* OWNER OR CONTRIBUTORS 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.
*/
#ifndef __PAM_YUBICO_DROP_PRIVS_H_INCLUDED__
#define __PAM_YUBICO_DROP_PRIVS_H_INCLUDED__
#ifdef HAVE_PAM_MODUTIL_DROP_PRIV
#include <security/pam_modutil.h>
#else
#include <pwd.h>
#include <stdio.h>
#ifdef HAVE_SECURITY_PAM_APPL_H
#include <security/pam_appl.h>
#endif
#ifdef HAVE_SECURITY_PAM_MODULES_H
#include <security/pam_modules.h>
#endif
#define SAVED_GROUPS_MAX_LEN 64 /* as pam_modutil.. */
struct _ykpam_privs {
uid_t saved_euid;
gid_t saved_egid;
gid_t *saved_groups;
int saved_groups_length;
FILE *debug_file;
};
#define PAM_MODUTIL_DEF_PRIVS(n) \
gid_t n##_saved_groups[SAVED_GROUPS_MAX_LEN]; \
struct _ykpam_privs n = {-1, -1, n##_saved_groups, SAVED_GROUPS_MAX_LEN, cfg->debug_file}
int pam_modutil_drop_priv(pam_handle_t *, struct _ykpam_privs *, struct passwd *);
int pam_modutil_regain_priv(pam_handle_t *, struct _ykpam_privs *);
#endif
#endif