NAME

       bpftool-struct_ops - tool to register/unregister/introspect BPF struct_ops

SYNOPSIS

          bpftool [OPTIONS] struct_ops COMMAND

          OPTIONS := { { -j | --json } [{ -p | --pretty }] | { -d | --debug } }

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

STRUCT_OPS COMMANDS

       bpftool struct_ops { show | list } [STRUCT_OPS_MAP]
       bpftool struct_ops dump [STRUCT_OPS_MAP]
       bpftool struct_ops register OBJ
       bpftool struct_ops unregister STRUCT_OPS_MAP
       bpftool struct_ops help

       STRUCT_OPS_MAP := { id STRUCT_OPS_MAP_ID | name STRUCT_OPS_MAP_NAME }
       OBJ := /a/file/of/bpf_struct_ops.o

DESCRIPTION

          bpftool struct_ops { show | list } [STRUCT_OPS_MAP]
                 Show  brief information about the struct_ops in the system.  If STRUCT_OPS_MAP is specified, it
                 shows information only for the given struct_ops.  Otherwise, it lists all struct_ops  currently
                 existing in the system.

                 Output  will start with struct_ops map ID, followed by its map name and its struct_ops's kernel
                 type.

          bpftool struct_ops dump [STRUCT_OPS_MAP]
                 Dump details information about the struct_ops in the system.  If STRUCT_OPS_MAP  is  specified,
                 it  dumps  information  only  for  the  given  struct_ops.   Otherwise, it dumps all struct_ops
                 currently existing in the system.

          bpftool struct_ops register OBJ
                 Register bpf struct_ops from OBJ.  All struct_ops under the ELF section ".struct_ops"  will  be
                 registered to its kernel subsystem.

          bpftool struct_ops unregister STRUCT_OPS_MAP
                 Unregister the STRUCT_OPS_MAP from the kernel subsystem.

          bpftool struct_ops help
                 Print short help message.

OPTIONS

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

          -V, --version
                 Print  version  number  (similar  to bpftool version), 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.

EXAMPLES

       # bpftool struct_ops show

          100: dctcp           tcp_congestion_ops
          105: cubic           tcp_congestion_ops

       # bpftool struct_ops unregister id 105

          Unregistered tcp_congestion_ops cubic id 105

       # bpftool struct_ops register bpf_cubic.o

          Registered tcp_congestion_ops cubic id 110

SEE ALSO

          bpf(2),    bpf-helpers(7),    bpftool(8),   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)