diff options
| author | Song Liu <song@kernel.org> | 2023-11-30 02:44:13 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-12-02 03:21:03 +0300 |
| commit | 67814c00de3161181cddd06c77aeaf86ac4cc584 (patch) | |
| tree | ec467b83873691b94b7e4ded55a4abdfa46ef41c /fs/verity/init.c | |
| parent | ac9c05e0e453cfcab2866f6d28f257590e4f66e5 (diff) | |
| download | linux-67814c00de3161181cddd06c77aeaf86ac4cc584.tar.xz | |
bpf, fsverity: Add kfunc bpf_get_fsverity_digest
fsverity provides fast and reliable hash of files, namely fsverity_digest.
The digest can be used by security solutions to verify file contents.
Add new kfunc bpf_get_fsverity_digest() so that we can access fsverity from
BPF LSM programs. This kfunc is added to fs/verity/measure.c because some
data structure used in the function is private to fsverity
(fs/verity/fsverity_private.h).
To avoid recursion, bpf_get_fsverity_digest is only allowed in BPF LSM
programs.
Signed-off-by: Song Liu <song@kernel.org>
Acked-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20231129234417.856536-3-song@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'fs/verity/init.c')
| -rw-r--r-- | fs/verity/init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/verity/init.c b/fs/verity/init.c index a29f062f6047..1e207c0f71de 100644 --- a/fs/verity/init.c +++ b/fs/verity/init.c @@ -69,6 +69,7 @@ static int __init fsverity_init(void) fsverity_init_workqueue(); fsverity_init_sysctl(); fsverity_init_signature(); + fsverity_init_bpf(); return 0; } late_initcall(fsverity_init) |