diff options
| author | Paul Chaignon <paul@isovalent.com> | 2021-12-19 20:34:43 +0100 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2021-12-21 05:33:37 +0100 |
| commit | b747e572ec589543e9ccb870158f467f7fa3d825 (patch) | |
| tree | cc4eeb105cd902cb111bacd0d2f636d1d0292c35 /sys/linux/test/bpf_cgroup | |
| parent | 5e875b312eef29ed23019a5819cec96ef3afdee0 (diff) | |
sys/linux: support map fd arrays
Commit [1] upstream introduced a new way to reference BPF maps in eBPF
instructions. An array of BPF map fds is passed at program load time.
Instructions can then reference fds in this array instead of carrying
the fds directly. The goal is to allow BPF instructions to be immutable
after compilation.
Since we don't yet have a good way to reference indexes in an array, we
define a new type map_fd_id for that purpose, with indexes between 0 and
16 only.
1 - https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=387544bfa291
Signed-off-by: Paul Chaignon <paul@isovalent.com>
Diffstat (limited to 'sys/linux/test/bpf_cgroup')
| -rw-r--r-- | sys/linux/test/bpf_cgroup | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/linux/test/bpf_cgroup b/sys/linux/test/bpf_cgroup index e28034c83..ad848e3fb 100644 --- a/sys/linux/test/bpf_cgroup +++ b/sys/linux/test/bpf_cgroup @@ -6,7 +6,7 @@ r1 = write$tcp_congestion(r0, &AUTO='reno\x00', AUTO) # Now, load a BPF_PROG_TYPE_CGROUP_SYSCTL that simply returns 0, which will block all writes to /proc/sys -r2 = bpf$PROG_LOAD(AUTO, &AUTO={0x17, AUTO, &AUTO=@framed={{AUTO, AUTO, AUTO, AUTO, 0x0, AUTO, AUTO, AUTO, 0x0}, [], {AUTO, AUTO, AUTO, AUTO}}, &AUTO='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, "00000000000000000000000000000000", 0x0, 0x12, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x78) +r2 = bpf$PROG_LOAD(AUTO, &AUTO={0x17, AUTO, &AUTO=@framed={{AUTO, AUTO, AUTO, AUTO, 0x0, AUTO, AUTO, AUTO, 0x0}, [], {AUTO, AUTO, AUTO, AUTO}}, &AUTO='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, "00000000000000000000000000000000", 0x0, 0x12, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90) r3 = openat(0xffffffffffffff9c, &AUTO='./cgroup\x00', 0x0, 0x0) |