1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (C) 2020-2024 Microsoft Corporation. All rights reserved.
4 */
5 #ifndef _IPE_HOOKS_H
6 #define _IPE_HOOKS_H
7
8 #include <linux/fs.h>
9 #include <linux/binfmts.h>
10 #include <linux/security.h>
11 #include <linux/blk_types.h>
12 #include <linux/fsverity.h>
13
14 enum ipe_hook_type {
15 IPE_HOOK_BPRM_CHECK = 0,
16 IPE_HOOK_MMAP,
17 IPE_HOOK_MPROTECT,
18 IPE_HOOK_KERNEL_READ,
19 IPE_HOOK_KERNEL_LOAD,
20 __IPE_HOOK_MAX
21 };
22
23 #define IPE_HOOK_INVALID __IPE_HOOK_MAX
24
25 int ipe_bprm_check_security(struct linux_binprm *bprm);
26
27 int ipe_mmap_file(struct file *f, unsigned long reqprot, unsigned long prot,
28 unsigned long flags);
29
30 int ipe_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
31 unsigned long prot);
32
33 int ipe_kernel_read_file(struct file *file, enum kernel_read_file_id id,
34 bool contents);
35
36 int ipe_kernel_load_data(enum kernel_load_data_id id, bool contents);
37
38 void ipe_unpack_initramfs(void);
39
40 #ifdef CONFIG_IPE_PROP_DM_VERITY
41 void ipe_bdev_free_security(struct block_device *bdev);
42
43 int ipe_bdev_setintegrity(struct block_device *bdev, enum lsm_integrity_type type,
44 const void *value, size_t len);
45 #endif /* CONFIG_IPE_PROP_DM_VERITY */
46
47 #ifdef CONFIG_IPE_PROP_FS_VERITY_BUILTIN_SIG
48 int ipe_inode_setintegrity(const struct inode *inode, enum lsm_integrity_type type,
49 const void *value, size_t size);
50 #endif /* CONFIG_IPE_PROP_FS_VERITY_BUILTIN_SIG */
51
52 #endif /* _IPE_HOOKS_H */
53
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