projects / deliverable / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| 3673e803 MJ |
1 | /* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) |
| 2 | * | |
| 3 | * wrapper/user_namespace.h | |
| 4 | * | |
| 5 | * Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com> | |
| 6 | * | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef _LTTNG_WRAPPER_USER_NAMESPACE_H | |
| 10 | #define _LTTNG_WRAPPER_USER_NAMESPACE_H | |
| 11 | ||
| 12 | #include <linux/version.h> | |
| 13 | #include <linux/user_namespace.h> | |
| 14 | ||
| 15 | ||
| 16 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0) | |
| 17 | ||
| 18 | #define lttng_current_xxuid(xxx) \ | |
| 19 | (from_kuid_munged(&init_user_ns, current_##xxx())) | |
| 20 | ||
| 21 | #define lttng_current_vxxuid(xxx) \ | |
| 22 | (from_kuid_munged(current_user_ns(), current_##xxx())) | |
| 23 | ||
| 24 | #define lttng_current_xxgid(xxx) \ | |
| 25 | (from_kgid_munged(&init_user_ns, current_##xxx())) | |
| 26 | ||
| 27 | #define lttng_current_vxxgid(xxx) \ | |
| 28 | (from_kgid_munged(current_user_ns(), current_##xxx())) | |
| 29 | ||
| 30 | #else | |
| 31 | ||
| 32 | #define lttng_current_xxuid(xxx) (current_##xxx()) | |
| 33 | ||
| 34 | #define lttng_current_vxxuid(xxx) \ | |
| 35 | (user_ns_map_uid(current_user_ns(), current_cred(), current_##xxx())) | |
| 36 | ||
| 37 | #define lttng_current_xxgid(xxx) (current_##xxx()) | |
| 38 | ||
| 39 | #define lttng_current_vxxgid(xxx) \ | |
| 40 | (user_ns_map_gid(current_user_ns(), current_cred(), current_##xxx())) | |
| 41 | #endif | |
| 42 | ||
| 43 | #define lttng_current_uid() (lttng_current_xxuid(uid)) | |
| 44 | #define lttng_current_euid() (lttng_current_xxuid(euid)) | |
| 45 | #define lttng_current_suid() (lttng_current_xxuid(suid)) | |
| 46 | #define lttng_current_fsuid() (lttng_current_xxuid(fsuid)) | |
| 47 | #define lttng_current_gid() (lttng_current_xxgid(gid)) | |
| 48 | #define lttng_current_egid() (lttng_current_xxgid(egid)) | |
| 49 | #define lttng_current_sgid() (lttng_current_xxgid(sgid)) | |
| 50 | #define lttng_current_fsgid() (lttng_current_xxgid(fsgid)) | |
| 51 | ||
| 52 | #define lttng_current_vuid() (lttng_current_vxxuid(uid)) | |
| 53 | #define lttng_current_veuid() (lttng_current_vxxuid(euid)) | |
| 54 | #define lttng_current_vsuid() (lttng_current_vxxuid(suid)) | |
| 55 | #define lttng_current_vfsuid() (lttng_current_vxxuid(fsuid)) | |
| 56 | #define lttng_current_vgid() (lttng_current_vxxgid(gid)) | |
| 57 | #define lttng_current_vegid() (lttng_current_vxxgid(egid)) | |
| 58 | #define lttng_current_vsgid() (lttng_current_vxxgid(sgid)) | |
| 59 | #define lttng_current_vfsgid() (lttng_current_vxxgid(fsgid)) | |
| 60 | ||
| 61 | #endif /* _LTTNG_WRAPPER_USER_NAMESPACE_H */ |