diff options
| author | KP Singh <kpsingh@google.com> | 2020-03-29 03:43:53 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-03-30 02:34:00 +0300 |
| commit | 520b7aa00d8cd8e411ecc09f63a2acd90feb6d29 (patch) | |
| tree | 226910e9b7b3b6778dbe962e611b4c6059601b7b /security/bpf | |
| parent | 9e4e01dfd3254c7f04f24b7c6b29596bc12332f3 (diff) | |
| download | linux-520b7aa00d8cd8e411ecc09f63a2acd90feb6d29.tar.xz | |
bpf: lsm: Initialize the BPF LSM hooks
* The hooks are initialized using the definitions in
include/linux/lsm_hook_defs.h.
* The LSM can be enabled / disabled with CONFIG_BPF_LSM.
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Brendan Jackman <jackmanb@google.com>
Reviewed-by: Florent Revest <revest@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: James Morris <jamorris@linux.microsoft.com>
Link: https://lore.kernel.org/bpf/20200329004356.27286-6-kpsingh@chromium.org
Diffstat (limited to 'security/bpf')
| -rw-r--r-- | security/bpf/Makefile | 5 | ||||
| -rw-r--r-- | security/bpf/hooks.c | 26 |
2 files changed, 31 insertions, 0 deletions
diff --git a/security/bpf/Makefile b/security/bpf/Makefile new file mode 100644 index 000000000000..c7a89a962084 --- /dev/null +++ b/security/bpf/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (C) 2020 Google LLC. + +obj-$(CONFIG_BPF_LSM) := hooks.o diff --git a/security/bpf/hooks.c b/security/bpf/hooks.c new file mode 100644 index 000000000000..32d32d485451 --- /dev/null +++ b/security/bpf/hooks.c @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * Copyright (C) 2020 Google LLC. + */ +#include <linux/lsm_hooks.h> +#include <linux/bpf_lsm.h> + +static struct security_hook_list bpf_lsm_hooks[] __lsm_ro_after_init = { + #define LSM_HOOK(RET, DEFAULT, NAME, ...) \ + LSM_HOOK_INIT(NAME, bpf_lsm_##NAME), + #include <linux/lsm_hook_defs.h> + #undef LSM_HOOK +}; + +static int __init bpf_lsm_init(void) +{ + security_add_hooks(bpf_lsm_hooks, ARRAY_SIZE(bpf_lsm_hooks), "bpf"); + pr_info("LSM support for eBPF active\n"); + return 0; +} + +DEFINE_LSM(bpf) = { + .name = "bpf", + .init = bpf_lsm_init, +}; |