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300a90b2cb
bpf task local storage is now using task_struct->bpf_storage, so
bpf_lsm_blob_sizes.lbs_task is no longer needed. Remove it to save some
memory.
Fixes: a10787e6d5 ("bpf: Enable task local storage for tracing programs")
Cc: stable@vger.kernel.org
Cc: KP Singh <kpsingh@kernel.org>
Cc: Matt Bobrowski <mattbobrowski@google.com>
Signed-off-by: Song Liu <song@kernel.org>
Acked-by: Matt Bobrowski <mattbobrowski@google.com>
Link: https://lore.kernel.org/r/20240911055508.9588-1-song@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
41 lines
942 B
C
41 lines
942 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020 Google LLC.
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*/
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#include <linux/lsm_hooks.h>
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#include <linux/bpf_lsm.h>
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#include <uapi/linux/lsm.h>
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static struct security_hook_list bpf_lsm_hooks[] __ro_after_init = {
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#define LSM_HOOK(RET, DEFAULT, NAME, ...) \
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LSM_HOOK_INIT(NAME, bpf_lsm_##NAME),
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#include <linux/lsm_hook_defs.h>
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#undef LSM_HOOK
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LSM_HOOK_INIT(inode_free_security, bpf_inode_storage_free),
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LSM_HOOK_INIT(task_free, bpf_task_storage_free),
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};
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static const struct lsm_id bpf_lsmid = {
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.name = "bpf",
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.id = LSM_ID_BPF,
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};
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static int __init bpf_lsm_init(void)
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{
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security_add_hooks(bpf_lsm_hooks, ARRAY_SIZE(bpf_lsm_hooks),
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&bpf_lsmid);
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pr_info("LSM support for eBPF active\n");
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return 0;
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}
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struct lsm_blob_sizes bpf_lsm_blob_sizes __ro_after_init = {
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.lbs_inode = sizeof(struct bpf_storage_blob),
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};
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DEFINE_LSM(bpf) = {
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.name = "bpf",
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.init = bpf_lsm_init,
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.blobs = &bpf_lsm_blob_sizes
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};
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