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.TH BPFTOOL-STRUCT_OPS 8 "" "" ""
.SH NAME
bpftool-struct_ops \- tool to register/unregister/introspect BPF struct_ops
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.SH SYNOPSIS
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.INDENT 3.5
\fBbpftool\fP [\fIOPTIONS\fP] \fBstruct_ops\fP \fICOMMAND\fP
.sp
\fIOPTIONS\fP := { { \fB\-j\fP | \fB\-\-json\fP } [{ \fB\-p\fP | \fB\-\-pretty\fP }] }
.sp
\fICOMMANDS\fP :=
{ \fBshow\fP | \fBlist\fP | \fBdump\fP | \fBregister\fP | \fBunregister\fP | \fBhelp\fP }
.UNINDENT
.UNINDENT
.SH STRUCT_OPS COMMANDS
.nf
\fBbpftool\fP \fBstruct_ops { show | list }\fP [\fISTRUCT_OPS_MAP\fP]
\fBbpftool\fP \fBstruct_ops dump\fP [\fISTRUCT_OPS_MAP\fP]
\fBbpftool\fP \fBstruct_ops register\fP \fIOBJ\fP
\fBbpftool\fP \fBstruct_ops unregister\fP \fISTRUCT_OPS_MAP\fP
\fBbpftool\fP \fBstruct_ops help\fP

\fISTRUCT_OPS_MAP\fP := { \fBid\fP \fISTRUCT_OPS_MAP_ID\fP | \fBname\fP \fISTRUCT_OPS_MAP_NAME\fP }
\fIOBJ\fP := /a/file/of/bpf_struct_ops.o
.fi
.sp
.SH DESCRIPTION
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.INDENT 3.5
.INDENT 0.0
.TP
.B \fBbpftool struct_ops { show | list }\fP [\fISTRUCT_OPS_MAP\fP]
Show brief information about the struct_ops in the system.
If \fISTRUCT_OPS_MAP\fP is specified, it shows information only
for the given struct_ops.  Otherwise, it lists all struct_ops
currently existing in the system.
.sp
Output will start with struct_ops map ID, followed by its map
name and its struct_ops\(aqs kernel type.
.TP
.B \fBbpftool struct_ops dump\fP [\fISTRUCT_OPS_MAP\fP]
Dump details information about the struct_ops in the system.
If \fISTRUCT_OPS_MAP\fP is specified, it dumps information only
for the given struct_ops.  Otherwise, it dumps all struct_ops
currently existing in the system.
.TP
.B \fBbpftool struct_ops register\fP \fIOBJ\fP
Register bpf struct_ops from \fIOBJ\fP\&.  All struct_ops under
the ELF section ".struct_ops" will be registered to
its kernel subsystem.
.TP
.B \fBbpftool struct_ops unregister\fP  \fISTRUCT_OPS_MAP\fP
Unregister the \fISTRUCT_OPS_MAP\fP from the kernel subsystem.
.TP
.B \fBbpftool struct_ops help\fP
Print short help message.
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.UNINDENT
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.SH OPTIONS
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.INDENT 3.5
.INDENT 0.0
.TP
.B \-h\fP,\fB  \-\-help
Print short help message (similar to \fBbpftool help\fP).
.TP
.B \-V\fP,\fB  \-\-version
Print version number (similar to \fBbpftool version\fP), and optional
features that were included when bpftool was compiled. Optional
features include linking against libbfd to provide the disassembler
for JIT\-ted programs (\fBbpftool prog dump jited\fP) and usage of BPF
skeletons (some features like \fBbpftool prog profile\fP or showing
pids associated to BPF objects may rely on it).
.TP
.B \-j\fP,\fB  \-\-json
Generate JSON output. For commands that cannot produce JSON, this
option has no effect.
.TP
.B \-p\fP,\fB  \-\-pretty
Generate human\-readable JSON output. Implies \fB\-j\fP\&.
.TP
.B \-d\fP,\fB  \-\-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.
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.SH EXAMPLES
.sp
\fB# bpftool struct_ops show\fP
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.sp
.nf
.ft C
100: dctcp           tcp_congestion_ops
105: cubic           tcp_congestion_ops
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
\fB# bpftool struct_ops unregister id 105\fP
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.INDENT 3.5
.sp
.nf
.ft C
Unregistered tcp_congestion_ops cubic id 105
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
\fB# bpftool struct_ops register bpf_cubic.o\fP
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.INDENT 3.5
.sp
.nf
.ft C
Registered tcp_congestion_ops cubic id 110
.ft P
.fi
.UNINDENT
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.SH SEE ALSO
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.INDENT 3.5
\fBbpf\fP(2),
\fBbpf\-helpers\fP(7),
\fBbpftool\fP(8),
\fBbpftool\-btf\fP(8),
\fBbpftool\-cgroup\fP(8),
\fBbpftool\-feature\fP(8),
\fBbpftool\-gen\fP(8),
\fBbpftool\-iter\fP(8),
\fBbpftool\-link\fP(8),
\fBbpftool\-map\fP(8),
\fBbpftool\-net\fP(8),
\fBbpftool\-perf\fP(8),
\fBbpftool\-prog\fP(8)
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