93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Linux Security Modules (LSM) - User space API
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*
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* Copyright (C) 2022 Casey Schaufler <casey@schaufler-ca.com>
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* Copyright (C) 2022 Intel Corporation
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*/
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#ifndef _UAPI_LINUX_LSM_H
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#define _UAPI_LINUX_LSM_H
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#include <linux/stddef.h>
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#include <linux/types.h>
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#include <linux/unistd.h>
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/**
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* struct lsm_ctx - LSM context information
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* @id: the LSM id number, see LSM_ID_XXX
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* @flags: LSM specific flags
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* @len: length of the lsm_ctx struct, @ctx and any other data or padding
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* @ctx_len: the size of @ctx
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* @ctx: the LSM context value
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*
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* The @len field MUST be equal to the size of the lsm_ctx struct
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* plus any additional padding and/or data placed after @ctx.
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*
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* In all cases @ctx_len MUST be equal to the length of @ctx.
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* If @ctx is a string value it should be nul terminated with
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* @ctx_len equal to `strlen(@ctx) + 1`. Binary values are
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* supported.
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*
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* The @flags and @ctx fields SHOULD only be interpreted by the
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* LSM specified by @id; they MUST be set to zero/0 when not used.
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*/
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struct lsm_ctx {
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__u64 id;
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__u64 flags;
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__u64 len;
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__u64 ctx_len;
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__u8 ctx[] __counted_by(ctx_len);
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};
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/*
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* ID tokens to identify Linux Security Modules (LSMs)
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*
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* These token values are used to uniquely identify specific LSMs
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* in the kernel as well as in the kernel's LSM userspace API.
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*
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* A value of zero/0 is considered undefined and should not be used
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* outside the kernel. Values 1-99 are reserved for potential
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* future use.
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*/
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#define LSM_ID_UNDEF 0
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#define LSM_ID_CAPABILITY 100
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#define LSM_ID_SELINUX 101
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#define LSM_ID_SMACK 102
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#define LSM_ID_TOMOYO 103
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#define LSM_ID_APPARMOR 104
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#define LSM_ID_YAMA 105
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#define LSM_ID_LOADPIN 106
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#define LSM_ID_SAFESETID 107
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#define LSM_ID_LOCKDOWN 108
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#define LSM_ID_BPF 109
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#define LSM_ID_LANDLOCK 110
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#define LSM_ID_IMA 111
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#define LSM_ID_EVM 112
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/*
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* LSM_ATTR_XXX definitions identify different LSM attributes
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* which are used in the kernel's LSM userspace API. Support
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* for these attributes vary across the different LSMs. None
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* are required.
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*
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* A value of zero/0 is considered undefined and should not be used
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* outside the kernel. Values 1-99 are reserved for potential
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* future use.
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*/
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#define LSM_ATTR_UNDEF 0
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#define LSM_ATTR_CURRENT 100
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#define LSM_ATTR_EXEC 101
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#define LSM_ATTR_FSCREATE 102
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#define LSM_ATTR_KEYCREATE 103
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#define LSM_ATTR_PREV 104
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#define LSM_ATTR_SOCKCREATE 105
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/*
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* LSM_FLAG_XXX definitions identify special handling instructions
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* for the API.
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*/
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#define LSM_FLAG_SINGLE 0x0001
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#endif /* _UAPI_LINUX_LSM_H */
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