1================== 2bpftool-struct_ops 3================== 4------------------------------------------------------------------------------- 5tool to register/unregister/introspect BPF struct_ops 6------------------------------------------------------------------------------- 7 8:Manual section: 8 9 10SYNOPSIS 11======== 12 13 **bpftool** [*OPTIONS*] **struct_ops** *COMMAND* 14 15 *OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] } 16 17 *COMMANDS* := 18 { **show** | **list** | **dump** | **register** | **unregister** | **help** } 19 20STRUCT_OPS COMMANDS 21=================== 22 23| **bpftool** **struct_ops { show | list }** [*STRUCT_OPS_MAP*] 24| **bpftool** **struct_ops dump** [*STRUCT_OPS_MAP*] 25| **bpftool** **struct_ops register** *OBJ* 26| **bpftool** **struct_ops unregister** *STRUCT_OPS_MAP* 27| **bpftool** **struct_ops help** 28| 29| *STRUCT_OPS_MAP* := { **id** *STRUCT_OPS_MAP_ID* | **name** *STRUCT_OPS_MAP_NAME* } 30| *OBJ* := /a/file/of/bpf_struct_ops.o 31 32 33DESCRIPTION 34=========== 35 **bpftool struct_ops { show | list }** [*STRUCT_OPS_MAP*] 36 Show brief information about the struct_ops in the system. 37 If *STRUCT_OPS_MAP* is specified, it shows information only 38 for the given struct_ops. Otherwise, it lists all struct_ops 39 currently existing in the system. 40 41 Output will start with struct_ops map ID, followed by its map 42 name and its struct_ops's kernel type. 43 44 **bpftool struct_ops dump** [*STRUCT_OPS_MAP*] 45 Dump details information about the struct_ops in the system. 46 If *STRUCT_OPS_MAP* is specified, it dumps information only 47 for the given struct_ops. Otherwise, it dumps all struct_ops 48 currently existing in the system. 49 50 **bpftool struct_ops register** *OBJ* 51 Register bpf struct_ops from *OBJ*. All struct_ops under 52 the ELF section ".struct_ops" will be registered to 53 its kernel subsystem. 54 55 **bpftool struct_ops unregister** *STRUCT_OPS_MAP* 56 Unregister the *STRUCT_OPS_MAP* from the kernel subsystem. 57 58 **bpftool struct_ops help** 59 Print short help message. 60 61OPTIONS 62======= 63 -h, --help 64 Print short generic help message (similar to **bpftool help**). 65 66 -V, --version 67 Print version number (similar to **bpftool version**). 68 69 -j, --json 70 Generate JSON output. For commands that cannot produce JSON, this 71 option has no effect. 72 73 -p, --pretty 74 Generate human-readable JSON output. Implies **-j**. 75 76 -d, --debug 77 Print all logs available, even debug-level information. This 78 includes logs from libbpf as well as from the verifier, when 79 attempting to load programs. 80 81EXAMPLES 82======== 83**# bpftool struct_ops show** 84 85:: 86 87 100: dctcp tcp_congestion_ops 88 105: cubic tcp_congestion_ops 89 90**# bpftool struct_ops unregister id 105** 91 92:: 93 94 Unregistered tcp_congestion_ops cubic id 105 95 96**# bpftool struct_ops register bpf_cubic.o** 97 98:: 99 100 Registered tcp_congestion_ops cubic id 110 101 102 103SEE ALSO 104======== 105 **bpf**\ (2), 106 **bpf-helpers**\ (7), 107 **bpftool**\ (8), 108 **bpftool-btf**\ (8), 109 **bpftool-cgroup**\ (8), 110 **bpftool-feature**\ (8), 111 **bpftool-gen**\ (8), 112 **bpftool-iter**\ (8), 113 **bpftool-link**\ (8), 114 **bpftool-map**\ (8), 115 **bpftool-net**\ (8), 116 **bpftool-perf**\ (8), 117 **bpftool-prog**\ (8) 118