| 1 | /* Header for nscd SELinux access controls. |
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| 2 | Copyright (C) 2004-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #ifndef _SELINUX_H |
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| 20 | #define _SELINUX_H 1 |
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| 21 | |
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| 22 | #include "nscd.h" |
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| 23 | #ifdef HAVE_LIBCAP |
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| 24 | # include <sys/capability.h> |
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| 25 | #endif |
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| 26 | |
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| 27 | #ifdef HAVE_SELINUX |
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| 28 | /* Global variable to tell if the kernel has SELinux support. */ |
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| 29 | extern int selinux_enabled; |
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| 30 | |
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| 31 | /* Define this for AVC stat usage. */ |
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| 32 | struct avc_cache_stats; |
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| 33 | |
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| 34 | /* Initialize the userspace AVC. */ |
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| 35 | extern void nscd_avc_init (void); |
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| 36 | /* Determine if we are running on an SELinux kernel. */ |
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| 37 | extern void nscd_selinux_enabled (int *selinux_enabled); |
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| 38 | /* Check if the client has permission for the request type. */ |
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| 39 | extern int nscd_request_avc_has_perm (int fd, request_type req); |
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| 40 | /* Initialize AVC statistic information. */ |
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| 41 | extern void nscd_avc_cache_stats (struct avc_cache_stats *cstats); |
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| 42 | /* Display statistics on AVC usage. */ |
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| 43 | extern void nscd_avc_print_stats (struct avc_cache_stats *cstats); |
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| 44 | |
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| 45 | # ifdef HAVE_LIBCAP |
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| 46 | /* Preserve capabilities to connect to the audit daemon. */ |
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| 47 | extern cap_t preserve_capabilities (void); |
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| 48 | /* Install final capabilities. */ |
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| 49 | extern void install_real_capabilities (cap_t new_caps); |
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| 50 | # endif |
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| 51 | #else |
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| 52 | # define selinux_enabled 0 |
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| 53 | # define nscd_avc_init() (void) 0 |
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| 54 | # define nscd_selinux_enabled(selinux_enabled) (void) 0 |
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| 55 | # define nscd_request_avc_has_perm(fd, req) 0 |
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| 56 | # define nscd_avc_cache_stats(cstats) (void) 0 |
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| 57 | # define nscd_avc_print_stats(cstats) (void) 0 |
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| 58 | #endif /* HAVE_SELINUX */ |
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| 59 | |
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| 60 | #endif /* _SELINUX_H */ |
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| 61 | |
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