NAME

       BPFTOOL - tool for inspection and simple manipulation of eBPF programs and maps

SYNOPSIS

          bpftool [OPTIONS] OBJECT { COMMAND | help }

          bpftool batch file FILE

          bpftool version

          OBJECT  :=  {  map  |  program  |  link  |  cgroup | perf | net | feature | btf | gen |
          struct_ops | iter }

          OPTIONS := { { -V | --version } | { -j | --json } [{ -p | --pretty }] | { -d |  --debug
          } | { -l | --legacy } }

          MAP-COMMANDS  :=  {  show | list | create | dump | update | lookup | getnext | delete |
          pin | event_pipe | help }

          PROG-COMMANDS := { show | list | dump jited | dump xlated |  pin  |  load  |  attach  |
          detach | help }

          LINK-COMMANDS := { show | list | pin | detach | help }

          CGROUP-COMMANDS := { show | list | attach | detach | help }

          PERF-COMMANDS := { show | list | help }

          NET-COMMANDS := { show | list | help }

          FEATURE-COMMANDS := { probe | help }

          BTF-COMMANDS := { show | list | dump | help }

          GEN-COMMANDS := { object | skeleton | min_core_btf | help }

          STRUCT-OPS-COMMANDS := { show | list | dump | register | unregister | help }

          ITER-COMMANDS := { pin | help }

DESCRIPTION

          bpftool allows for inspection and simple modification of BPF objects on the system.

          Note  that  format of the output of all tools is not guaranteed to be stable and should
          not be depended upon.

OPTIONS

          -h, --help
                 Print short help message (similar to bpftool help).

          -V, --version
                 Print bpftool's version number (similar to bpftool version), the number  of  the
                 libbpf version in use, and optional features that were included when bpftool was
                 compiled. Optional features  include  linking  against  libbfd  to  provide  the
                 disassembler  for  JIT-ted  programs  (bpftool prog dump jited) and usage of BPF
                 skeletons (some features like bpftool prog profile or showing pids associated to
                 BPF objects may rely on it).

          -j, --json
                 Generate  JSON output. For commands that cannot produce JSON, this option has no
                 effect.

          -p, --pretty
                 Generate human-readable JSON output. Implies -j.

          -d, --debug
                 Print all logs available, even debug-level information. This includes logs  from
                 libbpf as well as from the verifier, when attempting to load programs.

          -l, --legacy
                 Use  legacy  libbpf  mode  which  has  more relaxed BPF program requirements. By
                 default, bpftool has more  strict  requirements  about  section  names,  changes
                 pinning logic and doesn't support some of the older non-BTF map declarations.

                 See https://github.com/libbpf/libbpf/wiki/Libbpf:-the-road-to-v1.0 for details.

          -m, --mapcompat
                 Allow loading maps with unknown map definitions.

          -n, --nomount
                 Do  not  automatically attempt to mount any virtual file system (such as tracefs
                 or BPF virtual file system) when necessary.

SEE ALSO

          bpf(2),   bpf-helpers(7),   bpftool-btf(8),   bpftool-cgroup(8),    bpftool-feature(8),
          bpftool-gen(8),   bpftool-iter(8),   bpftool-link(8),  bpftool-map(8),  bpftool-net(8),
          bpftool-perf(8), bpftool-prog(8), bpftool-struct_ops(8)

                                                                                       BPFTOOL(8)