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| author | John Fastabend <john.fastabend@gmail.com> | 2018-03-18 12:58:02 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-03-19 21:14:40 +0100 |
| commit | 468b3fdea8826b232a570d95ba45272eb38919cb (patch) | |
| tree | 64e4055c3e932bddb222c3a5ec814e413d8e7922 /tools | |
| parent | 1c16c3126ac938562a68ab7041fe74ce0de53166 (diff) | |
| download | linux-0-day-468b3fdea8826b232a570d95ba45272eb38919cb.tar.gz linux-0-day-468b3fdea8826b232a570d95ba45272eb38919cb.tar.xz | |
bpf: sockmap sample support for bpf_msg_cork_bytes()
Add sample application support for the bpf_msg_cork_bytes helper. This
lets the user specify how many bytes each verdict should apply to.
Similar to apply_bytes() tests these can be run as a stand-alone test
when used without other options or inline with other tests by using
the txmsg_cork option along with any of the basic tests txmsg,
txmsg_redir, txmsg_drop.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 3 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/bpf_helpers.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 01b9c97b172eb..e6924ab20fc35 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -792,7 +792,8 @@ union bpf_attr { FN(override_return), \ FN(sock_ops_cb_flags_set), \ FN(msg_redirect_map), \ - FN(msg_apply_bytes), + FN(msg_apply_bytes), \ + FN(msg_cork_bytes), /* integer value in 'imm' field of BPF_CALL instruction selects which helper * function eBPF program intends to call diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h index 4713de48cf888..b5b45ff705fff 100644 --- a/tools/testing/selftests/bpf/bpf_helpers.h +++ b/tools/testing/selftests/bpf/bpf_helpers.h @@ -90,6 +90,8 @@ static int (*bpf_msg_redirect_map)(void *ctx, void *map, int key, int flags) = (void *) BPF_FUNC_msg_redirect_map; static int (*bpf_msg_apply_bytes)(void *ctx, int len) = (void *) BPF_FUNC_msg_apply_bytes; +static int (*bpf_msg_cork_bytes)(void *ctx, int len) = + (void *) BPF_FUNC_msg_cork_bytes; /* llvm builtin functions that eBPF C program may use to * emit BPF_LD_ABS and BPF_LD_IND instructions |