1 | // SPDX-License-Identifier: GPL-2.0 |
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2 | |
3 | /* |
4 | * Copyright (C) 2020 Google LLC. |
5 | */ |
6 | #include <linux/lsm_hooks.h> |
7 | #include <linux/bpf_lsm.h> |
8 | #include <uapi/linux/lsm.h> |
9 | |
10 | static struct security_hook_list bpf_lsm_hooks[] __ro_after_init = { |
11 | #define LSM_HOOK(RET, DEFAULT, NAME, ...) \ |
12 | LSM_HOOK_INIT(NAME, bpf_lsm_##NAME), |
13 | #include <linux/lsm_hook_defs.h> |
14 | #undef LSM_HOOK |
15 | LSM_HOOK_INIT(inode_free_security, bpf_inode_storage_free), |
16 | }; |
17 | |
18 | static const struct lsm_id bpf_lsmid = { |
19 | .name = "bpf", |
20 | .id = LSM_ID_BPF, |
21 | }; |
22 | |
23 | static int __init bpf_lsm_init(void) |
24 | { |
25 | security_add_hooks(hooks: bpf_lsm_hooks, ARRAY_SIZE(bpf_lsm_hooks), |
26 | lsmid: &bpf_lsmid); |
27 | pr_info("LSM support for eBPF active\n"); |
28 | return 0; |
29 | } |
30 | |
31 | struct lsm_blob_sizes bpf_lsm_blob_sizes __ro_after_init = { |
32 | .lbs_inode = sizeof(struct bpf_storage_blob), |
33 | }; |
34 | |
35 | DEFINE_LSM(bpf) = { |
36 | .name = "bpf", |
37 | .init = bpf_lsm_init, |
38 | .blobs = &bpf_lsm_blob_sizes |
39 | }; |
40 |