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 #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(bpf_lsm_hooks, ARRAY_SIZE(bpf_lsm_hooks), 26 &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