1 // SPDX-License-Identifier: GPL-2.0
2
3 /*
4 * Copyright (C) 2020 Google LLC.
5 */
6 #include <linux/lsm_hooks.h>
7 #include <linux/bpf_lsm.h>
8
9 static struct security_hook_list bpf_lsm_hooks[] __lsm_ro_after_init = {
10 #define LSM_HOOK(RET, DEFAULT, NAME, ...) \
11 LSM_HOOK_INIT(NAME, bpf_lsm_##NAME),
12 #include <linux/lsm_hook_defs.h>
13 #undef LSM_HOOK
14 LSM_HOOK_INIT(inode_free_security, bpf_inode_storage_free),
15 LSM_HOOK_INIT(task_free, bpf_task_storage_free),
16 };
17
18 static int __init bpf_lsm_init(void)
19 {
20 security_add_hooks(bpf_lsm_hooks, ARRAY_SIZE(bpf_lsm_hooks), "bpf");
21 pr_info("LSM support for eBPF active\n");
22 return 0;
23 }
24
25 struct lsm_blob_sizes bpf_lsm_blob_sizes __lsm_ro_after_init = {
26 .lbs_inode = sizeof(struct bpf_storage_blob),
27 .lbs_task = sizeof(struct bpf_storage_blob),
28 };
29
30 DEFINE_LSM(bpf) = {
31 .name = "bpf",
32 .init = bpf_lsm_init,
33 .blobs = &bpf_lsm_blob_sizes
34 };
35
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