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authorKP Singh <kpsingh@google.com>2020-03-29 03:43:51 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2020-03-30 02:34:00 +0300
commit9d3fdea789c8fab51381c2d609932fabe94c0517 (patch)
tree49b02df49c0af7a9952eec5bc3b504ed9441375b /include/linux/bpf_lsm.h
parent98e828a0650f348be85728c69875260cf78069e6 (diff)
downloadlinux-9d3fdea789c8fab51381c2d609932fabe94c0517.tar.xz
bpf: lsm: Provide attachment points for BPF LSM programs
When CONFIG_BPF_LSM is enabled, nop functions, bpf_lsm_<hook_name>, are generated for each LSM hook. These functions are initialized as LSM hooks in a subsequent patch. 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> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: James Morris <jamorris@linux.microsoft.com> Link: https://lore.kernel.org/bpf/20200329004356.27286-4-kpsingh@chromium.org
Diffstat (limited to 'include/linux/bpf_lsm.h')
-rw-r--r--include/linux/bpf_lsm.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/bpf_lsm.h b/include/linux/bpf_lsm.h
new file mode 100644
index 000000000000..83b96895829f
--- /dev/null
+++ b/include/linux/bpf_lsm.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (C) 2020 Google LLC.
+ */
+
+#ifndef _LINUX_BPF_LSM_H
+#define _LINUX_BPF_LSM_H
+
+#include <linux/bpf.h>
+#include <linux/lsm_hooks.h>
+
+#ifdef CONFIG_BPF_LSM
+
+#define LSM_HOOK(RET, DEFAULT, NAME, ...) \
+ RET bpf_lsm_##NAME(__VA_ARGS__);
+#include <linux/lsm_hook_defs.h>
+#undef LSM_HOOK
+
+#endif /* CONFIG_BPF_LSM */
+
+#endif /* _LINUX_BPF_LSM_H */