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| author | Vadim Fedorenko <vadfed@meta.com> | 2024-04-23 00:50:21 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-04-25 01:01:10 +0200 |
| commit | 3e1c6f35409f9e447bf37f64840f5b65576bfb78 (patch) | |
| tree | 6ff5c59d598f975728cfdd1f4d29407d4b6cae01 /kernel/bpf/helpers.c | |
| parent | bpf: update the comment for BTF_FIELDS_MAX (diff) | |
| download | linux-3e1c6f35409f9e447bf37f64840f5b65576bfb78.tar.xz linux-3e1c6f35409f9e447bf37f64840f5b65576bfb78.zip | |
bpf: make common crypto API for TC/XDP programs
Add crypto API support to BPF to be able to decrypt or encrypt packets
in TC/XDP BPF programs. Special care should be taken for initialization
part of crypto algo because crypto alloc) doesn't work with preemtion
disabled, it can be run only in sleepable BPF program. Also async crypto
is not supported because of the very same issue - TC/XDP BPF programs
are not sleepable.
Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Link: https://lore.kernel.org/r/20240422225024.2847039-2-vadfed@meta.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'kernel/bpf/helpers.c')
| -rw-r--r-- | kernel/bpf/helpers.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 14c401b78e12..2a69a9a36c0f 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -1583,7 +1583,7 @@ static const struct bpf_func_proto bpf_kptr_xchg_proto = { #define DYNPTR_SIZE_MASK 0xFFFFFF #define DYNPTR_RDONLY_BIT BIT(31) -static bool __bpf_dynptr_is_rdonly(const struct bpf_dynptr_kern *ptr) +bool __bpf_dynptr_is_rdonly(const struct bpf_dynptr_kern *ptr) { return ptr->size & DYNPTR_RDONLY_BIT; } |