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

bpftoolstruct_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.

       bpftoolstruct_opsdump[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.

       bpftoolstruct_opsregisterOBJ[LINK_DIR]
              Register bpf struct_ops from  OBJ.   All  struct_ops  under  the  ELF  section  ".struct_ops"  and
              ".struct_ops.link"  will  be  registered  to  its  kernel  subsystem.   For each struct_ops in the
              ".struct_ops.link" section, a link will be created.  You can give LINK_DIR to provide a  directory
              path where these links will be pinned with the same name as their corresponding map name.

       bpftoolstruct_opsunregisterSTRUCT_OPS_MAP
              Unregister the STRUCT_OPS_MAP from the kernel subsystem.

       bpftoolstruct_opshelp
              Print short help message.

#bpftoolstruct_opsshow

          100: dctcp           tcp_congestion_ops
          105: cubic           tcp_congestion_ops

       #bpftoolstruct_opsunregisterid105

          Unregistered tcp_congestion_ops cubic id 105

       #bpftoolstruct_opsregisterbpf_cubic.o

          Registered tcp_congestion_ops cubic id 110

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

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

       -V, --version
              Print  bpftool's  version number (similar to bpftoolversion), the number of the libbpf version in
              use, and optional features that were included when bpftool was compiled. Optional features include
              linking against LLVM or libbfd to provide the disassembler for JIT-ted programs (bpftoolprogdumpjited) and usage of BPF skeletons (some  features  like  bpftoolprogprofile  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.

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)

bpftoolstruct_ops{show|list} [STRUCT_OPS_MAP]
       bpftoolstruct_opsdump [STRUCT_OPS_MAP]
       bpftoolstruct_opsregisterOBJ [LINK_DIR]
       bpftoolstruct_opsunregisterSTRUCT_OPS_MAPbpftoolstruct_opshelpSTRUCT_OPS_MAP := { idSTRUCT_OPS_MAP_ID | nameSTRUCT_OPS_MAP_NAME }
       OBJ := /a/file/of/bpf_struct_ops.o

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

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