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| author | Quentin Monnet <quentin@isovalent.com> | 2020-04-29 17:45:06 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-04-30 00:25:11 +0300 |
| commit | 0b3b9ca3d154486baa08a41cbc62fde67ba8c6c3 (patch) | |
| tree | ec30b445def82778746dca7a9f5ad752abaf7112 /tools/bpf/bpftool/Documentation | |
| parent | cf9bf714523dbbc97953be6de6ca14d57d4f8a21 (diff) | |
| download | linux-0b3b9ca3d154486baa08a41cbc62fde67ba8c6c3.tar.xz | |
tools: bpftool: Make libcap dependency optional
The new libcap dependency is not used for an essential feature of
bpftool, and we could imagine building the tool without checks on
CAP_SYS_ADMIN by disabling probing features as an unprivileged users.
Make it so, in order to avoid a hard dependency on libcap, and to ease
packaging/embedding of bpftool.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200429144506.8999-4-quentin@isovalent.com
Diffstat (limited to 'tools/bpf/bpftool/Documentation')
| -rw-r--r-- | tools/bpf/bpftool/Documentation/bpftool-feature.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/Documentation/bpftool-feature.rst b/tools/bpf/bpftool/Documentation/bpftool-feature.rst index ca085944e4cf..1fa755f55e0c 100644 --- a/tools/bpf/bpftool/Documentation/bpftool-feature.rst +++ b/tools/bpf/bpftool/Documentation/bpftool-feature.rst @@ -55,7 +55,9 @@ DESCRIPTION that case usually represent a small subset of the parameters supported by the system. Unprivileged users MUST use the **unprivileged** keyword: This is to avoid misdetection if - bpftool is inadvertently run as non-root, for example. + bpftool is inadvertently run as non-root, for example. This + keyword is unavailable if bpftool was compiled without + libcap. **bpftool feature probe dev** *NAME* [**full**] [**macros** [**prefix** *PREFIX*]] Probe network device for supported eBPF features and dump |