83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/* Copyright (c) 2011-2014 Yubico AB
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __PAM_U2F_DROP_PRIVS_H_INCLUDED__
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#define __PAM_U2F_DROP_PRIVS_H_INCLUDED__
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#ifdef HAVE_PAM_MODUTIL_DROP_PRIV
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#include <security/pam_modutil.h>
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#elif HAVE_OPENPAM_BORROW_CRED
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#include <sys/types.h>
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#include <security/pam_appl.h>
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#include <security/openpam.h>
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#define PAM_MODUTIL_DEF_PRIVS(n) /* noop */
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#define pam_modutil_drop_priv(pamh, privs, pwd) \
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((openpam_borrow_cred((pamh), (pwd)) == PAM_SUCCESS) ? 0 : -1)
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#define pam_modutil_regain_priv(pamh, privs) \
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((openpam_restore_cred((pamh)) == PAM_SUCCESS) ? 0 : -1)
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#else
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#include <pwd.h>
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#include <stdio.h>
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#ifdef HAVE_SECURITY_PAM_APPL_H
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#include <security/pam_appl.h>
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#endif
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#ifdef HAVE_SECURITY_PAM_MODULES_H
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#include <security/pam_modules.h>
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#endif
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#define SAVED_GROUPS_MAX_LEN 64 /* as pam_modutil.. */
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struct _ykpam_privs {
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uid_t saved_euid;
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gid_t saved_egid;
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gid_t *saved_groups;
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int saved_groups_length;
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FILE *debug_file;
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};
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#define PAM_MODUTIL_DEF_PRIVS(n) \
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gid_t n##_saved_groups[SAVED_GROUPS_MAX_LEN]; \
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struct _ykpam_privs n = { \
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(uid_t)-1, \
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(gid_t)-1, \
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n##_saved_groups, \
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SAVED_GROUPS_MAX_LEN, \
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cfg->debug_file, \
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}
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int pam_modutil_drop_priv(pam_handle_t *, struct _ykpam_privs *,
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struct passwd *);
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int pam_modutil_regain_priv(pam_handle_t *, struct _ykpam_privs *);
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#endif /* HAVE_PAM_MODUTIL_DROP_PRIV */
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#endif /* __PAM_U2F_DROP_PRIVS_H_INCLUDED__ */
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