| Igor Lubashev | c22e150 | 2019-08-07 10:44:14 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * Capability utilities |
| 4 | */ |
| 5 | |
| 6 | #ifdef HAVE_LIBCAP_SUPPORT |
| 7 | |
| 8 | #include "cap.h" |
| 9 | #include <stdbool.h> |
| 10 | #include <sys/capability.h> |
| 11 | |
| 12 | bool perf_cap__capable(cap_value_t cap) |
| 13 | { |
| 14 | cap_flag_value_t val; |
| 15 | cap_t caps = cap_get_proc(); |
| 16 | |
| 17 | if (!caps) |
| 18 | return false; |
| 19 | |
| 20 | if (cap_get_flag(caps, cap, CAP_EFFECTIVE, &val) != 0) |
| 21 | val = CAP_CLEAR; |
| 22 | |
| 23 | if (cap_free(caps) != 0) |
| 24 | return false; |
| 25 | |
| 26 | return val == CAP_SET; |
| 27 | } |
| 28 | |
| 29 | #endif /* HAVE_LIBCAP_SUPPORT */ |