Nick Kralevich | 1d1011a | 2012-09-06 10:14:03 -0700 | [diff] [blame] | 1 | /* libcap-ng.h -- |
| 2 | * Copyright 2009 Red Hat Inc., Durham, North Carolina. |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | * |
| 19 | * Authors: |
| 20 | * Steve Grubb <sgrubb@redhat.com> |
| 21 | */ |
| 22 | |
| 23 | #ifndef LIBCAP_NG_HEADER |
| 24 | #define LIBCAP_NG_HEADER |
| 25 | |
| 26 | #include <stdint.h> |
| 27 | #include <linux/capability.h> |
| 28 | #include <unistd.h> |
| 29 | |
| 30 | #ifdef __cplusplus |
| 31 | extern "C" { |
| 32 | #endif |
| 33 | |
| 34 | #ifndef CAP_LAST_CAP |
| 35 | #define CAP_LAST_CAP CAP_AUDIT_CONTROL |
| 36 | #endif |
| 37 | |
| 38 | typedef enum { CAPNG_DROP, CAPNG_ADD } capng_act_t; |
| 39 | typedef enum { CAPNG_EFFECTIVE=1, CAPNG_PERMITTED=2, |
| 40 | CAPNG_INHERITABLE=4, CAPNG_BOUNDING_SET=8 } capng_type_t; |
| 41 | typedef enum { CAPNG_SELECT_CAPS = 16, CAPNG_SELECT_BOUNDS = 32, |
| 42 | CAPNG_SELECT_BOTH = 48 } capng_select_t; |
| 43 | typedef enum { CAPNG_FAIL=-1, CAPNG_NONE, CAPNG_PARTIAL, |
| 44 | CAPNG_FULL } capng_results_t; |
| 45 | typedef enum { CAPNG_PRINT_STDOUT, CAPNG_PRINT_BUFFER } capng_print_t; |
| 46 | typedef enum { CAPNG_NO_FLAG=0, CAPNG_DROP_SUPP_GRP=1, |
| 47 | CAPNG_CLEAR_BOUNDING=2 } capng_flags_t; |
| 48 | |
| 49 | |
| 50 | // These functions manipulate process capabilities |
| 51 | void capng_clear(capng_select_t set); |
| 52 | void capng_fill(capng_select_t set); |
| 53 | void capng_setpid(int pid); |
| 54 | int capng_get_caps_process(void); |
| 55 | int capng_update(capng_act_t action, capng_type_t type,unsigned int capability); |
| 56 | int capng_updatev(capng_act_t action, capng_type_t type, |
| 57 | unsigned int capability, ...); |
| 58 | |
| 59 | // These functions apply the capabilities previously setup to a process |
| 60 | int capng_apply(capng_select_t set); |
| 61 | int capng_lock(void); |
| 62 | int capng_change_id(int uid, int gid, capng_flags_t flag); |
| 63 | |
| 64 | // These functions are used for file based capabilities |
| 65 | int capng_get_caps_fd(int fd); |
| 66 | int capng_apply_caps_fd(int fd); |
| 67 | |
| 68 | // These functions check capability bits |
| 69 | capng_results_t capng_have_capabilities(capng_select_t set); |
| 70 | int capng_have_capability(capng_type_t which, unsigned int capability); |
| 71 | |
| 72 | // These functions printout capabilities |
| 73 | char *capng_print_caps_numeric(capng_print_t where, capng_select_t set); |
| 74 | char *capng_print_caps_text(capng_print_t where, capng_type_t which); |
| 75 | |
| 76 | // These functions convert between numeric and text string |
| 77 | int capng_name_to_capability(const char *name); |
| 78 | const char *capng_capability_to_name(unsigned int capability); |
| 79 | |
| 80 | // These function should be used when you suspect a third party library |
| 81 | // may use libcap-ng also and want to make sure it doesn't alter something |
| 82 | // important. Otherwise you shouldn't need to call these. |
| 83 | void *capng_save_state(void); |
| 84 | void capng_restore_state(void **state); |
| 85 | |
| 86 | #ifdef __cplusplus |
| 87 | } |
| 88 | #endif |
| 89 | |
| 90 | |
| 91 | #endif |