diff options
| author | Alexei Starovoitov <ast@fb.com> | 2016-09-01 18:37:21 -0700 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:50:31 +0300 |
| commit | b103579f6a01b72be1a732a8c80078721e5c4f8d (patch) | |
| tree | 72202949c35c51fc7d51b14d9aa89fd8d3c9f967 /samples/bpf/sock_example.c | |
| parent | 54369560a245da099fa715db4675be44088cef4b (diff) | |
bpf: support 8-byte metafield access
The verifier supported only 4-byte metafields in
struct __sk_buff and struct xdp_md. The metafields in upcoming
struct bpf_perf_event are 8-byte to match register width in struct pt_regs.
Teach verifier to recognize 8-byte metafield access.
The patch doesn't affect safety of sockets and xdp programs.
They check for 4-byte only ctx access before these conditions are hit.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'samples/bpf/sock_example.c')
0 files changed, 0 insertions, 0 deletions