projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| b7cdc182 | 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
| dc923e75 MJ |
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 | ||
| dc923e75 MJ |
16 | #define lttng_current_xxuid(xxx) \ |
| 17 | (from_kuid_munged(&init_user_ns, current_##xxx())) | |
| 18 | ||
| 19 | #define lttng_current_vxxuid(xxx) \ | |
| 20 | (from_kuid_munged(current_user_ns(), current_##xxx())) | |
| 21 | ||
| 22 | #define lttng_current_xxgid(xxx) \ | |
| 23 | (from_kgid_munged(&init_user_ns, current_##xxx())) | |
| 24 | ||
| 25 | #define lttng_current_vxxgid(xxx) \ | |
| 26 | (from_kgid_munged(current_user_ns(), current_##xxx())) | |
| 27 | ||
| 1965e6b4 MJ |
28 | static inline |
| 29 | uid_t lttng_task_vuid(struct task_struct *p, struct user_namespace *ns) | |
| 30 | { | |
| 31 | uid_t uid; | |
| 32 | kuid_t kuid; | |
| 33 | ||
| 34 | kuid = task_cred_xxx(p, uid); | |
| 35 | uid = from_kuid_munged(ns, kuid); | |
| 36 | ||
| 37 | return uid; | |
| 38 | } | |
| 39 | ||
| 40 | static inline | |
| 41 | gid_t lttng_task_vgid(struct task_struct *p, struct user_namespace *ns) | |
| 42 | { | |
| 43 | gid_t gid; | |
| 44 | kgid_t kgid; | |
| 45 | ||
| 46 | kgid = task_cred_xxx(p, gid); | |
| 47 | gid = from_kgid_munged(ns, kgid); | |
| 48 | ||
| 49 | return gid; | |
| 50 | } | |
| 51 | ||
| dc923e75 MJ |
52 | #define lttng_current_uid() (lttng_current_xxuid(uid)) |
| 53 | #define lttng_current_euid() (lttng_current_xxuid(euid)) | |
| 54 | #define lttng_current_suid() (lttng_current_xxuid(suid)) | |
| 55 | #define lttng_current_fsuid() (lttng_current_xxuid(fsuid)) | |
| 56 | #define lttng_current_gid() (lttng_current_xxgid(gid)) | |
| 57 | #define lttng_current_egid() (lttng_current_xxgid(egid)) | |
| 58 | #define lttng_current_sgid() (lttng_current_xxgid(sgid)) | |
| 59 | #define lttng_current_fsgid() (lttng_current_xxgid(fsgid)) | |
| 60 | ||
| 61 | #define lttng_current_vuid() (lttng_current_vxxuid(uid)) | |
| 62 | #define lttng_current_veuid() (lttng_current_vxxuid(euid)) | |
| 63 | #define lttng_current_vsuid() (lttng_current_vxxuid(suid)) | |
| 64 | #define lttng_current_vfsuid() (lttng_current_vxxuid(fsuid)) | |
| 65 | #define lttng_current_vgid() (lttng_current_vxxgid(gid)) | |
| 66 | #define lttng_current_vegid() (lttng_current_vxxgid(egid)) | |
| 67 | #define lttng_current_vsgid() (lttng_current_vxxgid(sgid)) | |
| 68 | #define lttng_current_vfsgid() (lttng_current_vxxgid(fsgid)) | |
| 69 | ||
| 70 | #endif /* _LTTNG_WRAPPER_USER_NAMESPACE_H */ |