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author | Andrii Nakryiko <andrii@kernel.org> | 2023-11-30 10:52:23 -0800 |
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committer | Alexei Starovoitov <ast@kernel.org> | 2023-12-06 10:03:00 -0800 |
commit | d734ca7b33dbf60eb15dcf7c44f3da7073356777 (patch) | |
tree | 094194f17a60f5e22567a26ba3ae537556a54456 /kernel/bpf/bpf_lsm.c | |
parent | 66d636d70a79c1d37e3eea67ab50969e6aaef983 (diff) | |
download | linux-stable-d734ca7b33dbf60eb15dcf7c44f3da7073356777.tar.gz linux-stable-d734ca7b33dbf60eb15dcf7c44f3da7073356777.tar.bz2 linux-stable-d734ca7b33dbf60eb15dcf7c44f3da7073356777.zip |
bpf,lsm: add BPF token LSM hooks
Wire up bpf_token_create and bpf_token_free LSM hooks, which allow to
allocate LSM security blob (we add `void *security` field to struct
bpf_token for that), but also control who can instantiate BPF token.
This follows existing pattern for BPF map and BPF prog.
Also add security_bpf_token_allow_cmd() and security_bpf_token_capable()
LSM hooks that allow LSM implementation to control and negate (if
necessary) BPF token's delegation of a specific bpf_cmd and capability,
respectively.
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20231130185229.2688956-12-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/bpf_lsm.c')
-rw-r--r-- | kernel/bpf/bpf_lsm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/bpf/bpf_lsm.c b/kernel/bpf/bpf_lsm.c index 9e4e615f11eb..7d2f96413a57 100644 --- a/kernel/bpf/bpf_lsm.c +++ b/kernel/bpf/bpf_lsm.c @@ -265,6 +265,10 @@ BTF_ID(func, bpf_lsm_bpf_map_free) BTF_ID(func, bpf_lsm_bpf_prog) BTF_ID(func, bpf_lsm_bpf_prog_load) BTF_ID(func, bpf_lsm_bpf_prog_free) +BTF_ID(func, bpf_lsm_bpf_token_create) +BTF_ID(func, bpf_lsm_bpf_token_free) +BTF_ID(func, bpf_lsm_bpf_token_cmd) +BTF_ID(func, bpf_lsm_bpf_token_capable) BTF_ID(func, bpf_lsm_bprm_check_security) BTF_ID(func, bpf_lsm_bprm_committed_creds) BTF_ID(func, bpf_lsm_bprm_committing_creds) |