hooks.c (877B)
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 9static 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 18static 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 25struct 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 30DEFINE_LSM(bpf) = { 31 .name = "bpf", 32 .init = bpf_lsm_init, 33 .blobs = &bpf_lsm_blob_sizes 34};