8fc9f8bedf
Bash completion for proposing the "loadall" subcommand is missing. Let's
add it to the completion script.
Add a specific case to propose "load" and "loadall" for completing:
$ bpftool prog load
^ cursor is here
Otherwise, completion considers that $command is in load|loadall and
starts making related completions (file or directory names, as the
number of words on the command line is below 6), when the only suggested
keywords should be "load" and "loadall" until one has been picked and a
space entered after that to move to the next word.
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
810 lines
29 KiB
Bash
810 lines
29 KiB
Bash
# bpftool(8) bash completion -*- shell-script -*-
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#
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (C) 2017-2018 Netronome Systems, Inc.
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#
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# Author: Quentin Monnet <quentin.monnet@netronome.com>
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# Takes a list of words in argument; each one of them is added to COMPREPLY if
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# it is not already present on the command line. Returns no value.
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_bpftool_once_attr()
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{
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local w idx found
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for w in $*; do
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found=0
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for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
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if [[ $w == ${words[idx]} ]]; then
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found=1
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break
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fi
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done
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[[ $found -eq 0 ]] && \
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COMPREPLY+=( $( compgen -W "$w" -- "$cur" ) )
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done
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}
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# Takes a list of words as argument; if any of those words is present on the
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# command line, return 0. Otherwise, return 1.
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_bpftool_search_list()
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{
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local w idx
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for w in $*; do
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for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
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[[ $w == ${words[idx]} ]] && return 0
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done
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done
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return 1
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}
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# Takes a list of words in argument; adds them all to COMPREPLY if none of them
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# is already present on the command line. Returns no value.
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_bpftool_one_of_list()
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{
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_bpftool_search_list $* && return 1
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COMPREPLY+=( $( compgen -W "$*" -- "$cur" ) )
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}
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_bpftool_get_map_ids()
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{
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COMPREPLY+=( $( compgen -W "$( bpftool -jp map 2>&1 | \
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command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
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}
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# Takes map type and adds matching map ids to the list of suggestions.
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_bpftool_get_map_ids_for_type()
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{
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local type="$1"
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COMPREPLY+=( $( compgen -W "$( bpftool -jp map 2>&1 | \
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command grep -C2 "$type" | \
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command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
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}
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_bpftool_get_prog_ids()
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{
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COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 | \
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command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
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}
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_bpftool_get_prog_tags()
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{
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COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 | \
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command sed -n 's/.*"tag": "\(.*\)",$/\1/p' )" -- "$cur" ) )
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}
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_bpftool_get_btf_ids()
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{
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COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 | \
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command sed -n 's/.*"btf_id": \(.*\),\?$/\1/p' )" -- "$cur" ) )
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}
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_bpftool_get_obj_map_names()
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{
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local obj
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obj=$1
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maps=$(objdump -j maps -t $obj 2>/dev/null | \
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command awk '/g . maps/ {print $NF}')
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COMPREPLY+=( $( compgen -W "$maps" -- "$cur" ) )
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}
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_bpftool_get_obj_map_idxs()
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{
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local obj
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obj=$1
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nmaps=$(objdump -j maps -t $obj 2>/dev/null | grep -c 'g . maps')
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COMPREPLY+=( $( compgen -W "$(seq 0 $((nmaps - 1)))" -- "$cur" ) )
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}
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_sysfs_get_netdevs()
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{
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COMPREPLY+=( $( compgen -W "$( ls /sys/class/net 2>/dev/null )" -- \
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"$cur" ) )
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}
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# Retrieve type of the map that we are operating on.
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_bpftool_map_guess_map_type()
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{
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local keyword ref
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for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
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case "${words[$((idx-2))]}" in
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lookup|update)
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keyword=${words[$((idx-1))]}
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ref=${words[$((idx))]}
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;;
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push)
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printf "stack"
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return 0
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;;
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enqueue)
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printf "queue"
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return 0
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;;
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esac
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done
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[[ -z $ref ]] && return 0
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local type
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type=$(bpftool -jp map show $keyword $ref | \
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command sed -n 's/.*"type": "\(.*\)",$/\1/p')
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[[ -n $type ]] && printf $type
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}
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_bpftool_map_update_get_id()
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{
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local command="$1"
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# Is it the map to update, or a map to insert into the map to update?
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# Search for "value" keyword.
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local idx value
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for (( idx=7; idx < ${#words[@]}-1; idx++ )); do
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if [[ ${words[idx]} == "value" ]]; then
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value=1
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break
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fi
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done
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if [[ $value -eq 0 ]]; then
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case "$command" in
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push)
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_bpftool_get_map_ids_for_type stack
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;;
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enqueue)
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_bpftool_get_map_ids_for_type queue
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;;
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*)
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_bpftool_get_map_ids
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;;
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esac
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return 0
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fi
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# Id to complete is for a value. It can be either prog id or map id. This
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# depends on the type of the map to update.
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local type=$(_bpftool_map_guess_map_type)
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case $type in
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array_of_maps|hash_of_maps)
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_bpftool_get_map_ids
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return 0
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;;
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prog_array)
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_bpftool_get_prog_ids
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return 0
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;;
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*)
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return 0
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;;
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esac
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}
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_bpftool()
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{
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local cur prev words objword
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_init_completion || return
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# Deal with options
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if [[ ${words[cword]} == -* ]]; then
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local c='--version --json --pretty --bpffs --mapcompat --debug'
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COMPREPLY=( $( compgen -W "$c" -- "$cur" ) )
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return 0
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fi
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# Deal with simplest keywords
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case $prev in
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help|hex|opcodes|visual|linum)
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return 0
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;;
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tag)
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_bpftool_get_prog_tags
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return 0
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;;
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file|pinned)
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_filedir
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return 0
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;;
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batch)
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COMPREPLY=( $( compgen -W 'file' -- "$cur" ) )
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return 0
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;;
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esac
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# Remove all options so completions don't have to deal with them.
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local i
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for (( i=1; i < ${#words[@]}; )); do
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if [[ ${words[i]::1} == - ]]; then
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words=( "${words[@]:0:i}" "${words[@]:i+1}" )
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[[ $i -le $cword ]] && cword=$(( cword - 1 ))
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else
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i=$(( ++i ))
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fi
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done
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cur=${words[cword]}
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prev=${words[cword - 1]}
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pprev=${words[cword - 2]}
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local object=${words[1]} command=${words[2]}
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if [[ -z $object || $cword -eq 1 ]]; then
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case $cur in
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*)
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COMPREPLY=( $( compgen -W "$( bpftool help 2>&1 | \
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command sed \
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-e '/OBJECT := /!d' \
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-e 's/.*{//' \
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-e 's/}.*//' \
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-e 's/|//g' )" -- "$cur" ) )
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COMPREPLY+=( $( compgen -W 'batch help' -- "$cur" ) )
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return 0
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;;
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esac
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fi
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[[ $command == help ]] && return 0
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# Completion depends on object and command in use
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case $object in
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prog)
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# Complete id, only for subcommands that use prog (but no map) ids
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case $command in
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show|list|dump|pin)
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case $prev in
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id)
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_bpftool_get_prog_ids
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return 0
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;;
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esac
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;;
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esac
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local PROG_TYPE='id pinned tag'
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local MAP_TYPE='id pinned'
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case $command in
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show|list)
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[[ $prev != "$command" ]] && return 0
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COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
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return 0
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;;
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dump)
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case $prev in
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$command)
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COMPREPLY+=( $( compgen -W "xlated jited" -- \
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"$cur" ) )
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return 0
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;;
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xlated|jited)
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COMPREPLY=( $( compgen -W "$PROG_TYPE" -- \
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"$cur" ) )
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return 0
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;;
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*)
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_bpftool_once_attr 'file'
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if _bpftool_search_list 'xlated'; then
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COMPREPLY+=( $( compgen -W 'opcodes visual linum' -- \
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"$cur" ) )
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else
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COMPREPLY+=( $( compgen -W 'opcodes linum' -- \
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"$cur" ) )
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fi
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return 0
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;;
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esac
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;;
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pin)
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if [[ $prev == "$command" ]]; then
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COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
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else
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_filedir
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fi
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return 0
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;;
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attach|detach)
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case $cword in
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3)
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COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
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return 0
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;;
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4)
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case $prev in
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id)
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_bpftool_get_prog_ids
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;;
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pinned)
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_filedir
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;;
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esac
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return 0
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;;
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5)
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COMPREPLY=( $( compgen -W 'msg_verdict stream_verdict \
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stream_parser flow_dissector' -- "$cur" ) )
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return 0
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;;
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6)
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COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
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return 0
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;;
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7)
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case $prev in
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id)
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_bpftool_get_map_ids
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;;
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pinned)
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_filedir
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;;
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esac
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return 0
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;;
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esac
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;;
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load|loadall)
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local obj
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# Propose "load/loadall" to complete "bpftool prog load",
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# or bash tries to complete "load" as a filename below.
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if [[ ${#words[@]} -eq 3 ]]; then
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COMPREPLY=( $( compgen -W "load loadall" -- "$cur" ) )
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return 0
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fi
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if [[ ${#words[@]} -lt 6 ]]; then
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_filedir
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return 0
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fi
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obj=${words[3]}
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if [[ ${words[-4]} == "map" ]]; then
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COMPREPLY=( $( compgen -W "id pinned" -- "$cur" ) )
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return 0
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fi
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if [[ ${words[-3]} == "map" ]]; then
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if [[ ${words[-2]} == "idx" ]]; then
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_bpftool_get_obj_map_idxs $obj
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elif [[ ${words[-2]} == "name" ]]; then
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_bpftool_get_obj_map_names $obj
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fi
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return 0
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fi
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if [[ ${words[-2]} == "map" ]]; then
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COMPREPLY=( $( compgen -W "idx name" -- "$cur" ) )
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return 0
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fi
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case $prev in
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type)
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COMPREPLY=( $( compgen -W "socket kprobe \
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kretprobe classifier flow_dissector \
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action tracepoint raw_tracepoint \
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xdp perf_event cgroup/skb cgroup/sock \
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cgroup/dev lwt_in lwt_out lwt_xmit \
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lwt_seg6local sockops sk_skb sk_msg \
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lirc_mode2 cgroup/bind4 cgroup/bind6 \
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cgroup/connect4 cgroup/connect6 \
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cgroup/sendmsg4 cgroup/sendmsg6 \
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cgroup/recvmsg4 cgroup/recvmsg6 \
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cgroup/post_bind4 cgroup/post_bind6 \
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cgroup/sysctl cgroup/getsockopt \
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cgroup/setsockopt" -- \
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"$cur" ) )
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return 0
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;;
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id)
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_bpftool_get_map_ids
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return 0
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;;
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pinned|pinmaps)
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_filedir
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return 0
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;;
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dev)
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_sysfs_get_netdevs
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return 0
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;;
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*)
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COMPREPLY=( $( compgen -W "map" -- "$cur" ) )
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_bpftool_once_attr 'type'
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_bpftool_once_attr 'dev'
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_bpftool_once_attr 'pinmaps'
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return 0
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;;
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esac
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;;
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tracelog)
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return 0
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;;
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run)
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if [[ ${#words[@]} -lt 5 ]]; then
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_filedir
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return 0
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fi
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case $prev in
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id)
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_bpftool_get_prog_ids
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return 0
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;;
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data_in|data_out|ctx_in|ctx_out)
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_filedir
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return 0
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;;
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repeat|data_size_out|ctx_size_out)
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return 0
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;;
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*)
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_bpftool_once_attr 'data_in data_out data_size_out \
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ctx_in ctx_out ctx_size_out repeat'
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return 0
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;;
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esac
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;;
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*)
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[[ $prev == $object ]] && \
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COMPREPLY=( $( compgen -W 'dump help pin attach detach \
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load loadall show list tracelog run' -- "$cur" ) )
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;;
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esac
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;;
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map)
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local MAP_TYPE='id pinned'
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case $command in
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show|list|dump|peek|pop|dequeue)
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case $prev in
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$command)
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COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
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return 0
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;;
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id)
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case "$command" in
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peek)
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_bpftool_get_map_ids_for_type stack
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_bpftool_get_map_ids_for_type queue
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;;
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pop)
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_bpftool_get_map_ids_for_type stack
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;;
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dequeue)
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_bpftool_get_map_ids_for_type queue
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;;
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*)
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_bpftool_get_map_ids
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;;
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esac
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return 0
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;;
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*)
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return 0
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;;
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esac
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;;
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create)
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case $prev in
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$command)
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_filedir
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return 0
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;;
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type)
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COMPREPLY=( $( compgen -W 'hash array prog_array \
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perf_event_array percpu_hash percpu_array \
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stack_trace cgroup_array lru_hash \
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lru_percpu_hash lpm_trie array_of_maps \
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hash_of_maps devmap sockmap cpumap xskmap \
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sockhash cgroup_storage reuseport_sockarray \
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percpu_cgroup_storage queue stack' -- \
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"$cur" ) )
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return 0
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;;
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key|value|flags|name|entries)
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return 0
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;;
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dev)
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_sysfs_get_netdevs
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return 0
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;;
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*)
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_bpftool_once_attr 'type'
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_bpftool_once_attr 'key'
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_bpftool_once_attr 'value'
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_bpftool_once_attr 'entries'
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_bpftool_once_attr 'name'
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_bpftool_once_attr 'flags'
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_bpftool_once_attr 'dev'
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return 0
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;;
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esac
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;;
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lookup|getnext|delete)
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case $prev in
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$command)
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COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
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return 0
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;;
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id)
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_bpftool_get_map_ids
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return 0
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;;
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key)
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COMPREPLY+=( $( compgen -W 'hex' -- "$cur" ) )
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;;
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*)
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case $(_bpftool_map_guess_map_type) in
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queue|stack)
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return 0
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;;
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esac
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_bpftool_once_attr 'key'
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return 0
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;;
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esac
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;;
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update|push|enqueue)
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case $prev in
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$command)
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COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
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return 0
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;;
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id)
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_bpftool_map_update_get_id $command
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return 0
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;;
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key)
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COMPREPLY+=( $( compgen -W 'hex' -- "$cur" ) )
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|
;;
|
|
value)
|
|
# We can have bytes, or references to a prog or a
|
|
# map, depending on the type of the map to update.
|
|
case "$(_bpftool_map_guess_map_type)" in
|
|
array_of_maps|hash_of_maps)
|
|
local MAP_TYPE='id pinned'
|
|
COMPREPLY+=( $( compgen -W "$MAP_TYPE" \
|
|
-- "$cur" ) )
|
|
return 0
|
|
;;
|
|
prog_array)
|
|
local PROG_TYPE='id pinned tag'
|
|
COMPREPLY+=( $( compgen -W "$PROG_TYPE" \
|
|
-- "$cur" ) )
|
|
return 0
|
|
;;
|
|
*)
|
|
COMPREPLY+=( $( compgen -W 'hex' \
|
|
-- "$cur" ) )
|
|
return 0
|
|
;;
|
|
esac
|
|
return 0
|
|
;;
|
|
*)
|
|
case $(_bpftool_map_guess_map_type) in
|
|
queue|stack)
|
|
_bpftool_once_attr 'value'
|
|
return 0;
|
|
;;
|
|
esac
|
|
|
|
_bpftool_once_attr 'key'
|
|
local UPDATE_FLAGS='any exist noexist'
|
|
for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
|
|
if [[ ${words[idx]} == 'value' ]]; then
|
|
# 'value' is present, but is not the last
|
|
# word i.e. we can now have UPDATE_FLAGS.
|
|
_bpftool_one_of_list "$UPDATE_FLAGS"
|
|
return 0
|
|
fi
|
|
done
|
|
for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
|
|
if [[ ${words[idx]} == 'key' ]]; then
|
|
# 'key' is present, but is not the last
|
|
# word i.e. we can now have 'value'.
|
|
_bpftool_once_attr 'value'
|
|
return 0
|
|
fi
|
|
done
|
|
|
|
return 0
|
|
;;
|
|
esac
|
|
;;
|
|
pin)
|
|
if [[ $prev == "$command" ]]; then
|
|
COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
|
|
else
|
|
_filedir
|
|
fi
|
|
return 0
|
|
;;
|
|
event_pipe)
|
|
case $prev in
|
|
$command)
|
|
COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
|
|
return 0
|
|
;;
|
|
id)
|
|
_bpftool_get_map_ids_for_type perf_event_array
|
|
return 0
|
|
;;
|
|
cpu)
|
|
return 0
|
|
;;
|
|
index)
|
|
return 0
|
|
;;
|
|
*)
|
|
_bpftool_once_attr 'cpu'
|
|
_bpftool_once_attr 'index'
|
|
return 0
|
|
;;
|
|
esac
|
|
;;
|
|
*)
|
|
[[ $prev == $object ]] && \
|
|
COMPREPLY=( $( compgen -W 'delete dump getnext help \
|
|
lookup pin event_pipe show list update create \
|
|
peek push enqueue pop dequeue' -- \
|
|
"$cur" ) )
|
|
;;
|
|
esac
|
|
;;
|
|
btf)
|
|
local PROG_TYPE='id pinned tag'
|
|
local MAP_TYPE='id pinned'
|
|
case $command in
|
|
dump)
|
|
case $prev in
|
|
$command)
|
|
COMPREPLY+=( $( compgen -W "id map prog file" -- \
|
|
"$cur" ) )
|
|
return 0
|
|
;;
|
|
prog)
|
|
COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
|
|
return 0
|
|
;;
|
|
map)
|
|
COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
|
|
return 0
|
|
;;
|
|
id)
|
|
case $pprev in
|
|
prog)
|
|
_bpftool_get_prog_ids
|
|
;;
|
|
map)
|
|
_bpftool_get_map_ids
|
|
;;
|
|
dump)
|
|
_bpftool_get_btf_ids
|
|
;;
|
|
esac
|
|
return 0
|
|
;;
|
|
format)
|
|
COMPREPLY=( $( compgen -W "c raw" -- "$cur" ) )
|
|
;;
|
|
*)
|
|
# emit extra options
|
|
case ${words[3]} in
|
|
id|file)
|
|
_bpftool_once_attr 'format'
|
|
;;
|
|
map|prog)
|
|
if [[ ${words[3]} == "map" ]] && [[ $cword == 6 ]]; then
|
|
COMPREPLY+=( $( compgen -W "key value kv all" -- "$cur" ) )
|
|
fi
|
|
_bpftool_once_attr 'format'
|
|
;;
|
|
*)
|
|
;;
|
|
esac
|
|
return 0
|
|
;;
|
|
esac
|
|
;;
|
|
*)
|
|
[[ $prev == $object ]] && \
|
|
COMPREPLY=( $( compgen -W 'dump help' -- "$cur" ) )
|
|
;;
|
|
esac
|
|
;;
|
|
cgroup)
|
|
case $command in
|
|
show|list)
|
|
_filedir
|
|
return 0
|
|
;;
|
|
tree)
|
|
_filedir
|
|
return 0
|
|
;;
|
|
attach|detach)
|
|
local ATTACH_TYPES='ingress egress sock_create sock_ops \
|
|
device bind4 bind6 post_bind4 post_bind6 connect4 \
|
|
connect6 sendmsg4 sendmsg6 recvmsg4 recvmsg6 sysctl \
|
|
getsockopt setsockopt'
|
|
local ATTACH_FLAGS='multi override'
|
|
local PROG_TYPE='id pinned tag'
|
|
case $prev in
|
|
$command)
|
|
_filedir
|
|
return 0
|
|
;;
|
|
ingress|egress|sock_create|sock_ops|device|bind4|bind6|\
|
|
post_bind4|post_bind6|connect4|connect6|sendmsg4|\
|
|
sendmsg6|recvmsg4|recvmsg6|sysctl|getsockopt|\
|
|
setsockopt)
|
|
COMPREPLY=( $( compgen -W "$PROG_TYPE" -- \
|
|
"$cur" ) )
|
|
return 0
|
|
;;
|
|
id)
|
|
_bpftool_get_prog_ids
|
|
return 0
|
|
;;
|
|
*)
|
|
if ! _bpftool_search_list "$ATTACH_TYPES"; then
|
|
COMPREPLY=( $( compgen -W "$ATTACH_TYPES" -- \
|
|
"$cur" ) )
|
|
elif [[ "$command" == "attach" ]]; then
|
|
# We have an attach type on the command line,
|
|
# but it is not the previous word, or
|
|
# "id|pinned|tag" (we already checked for
|
|
# that). This should only leave the case when
|
|
# we need attach flags for "attach" commamnd.
|
|
_bpftool_one_of_list "$ATTACH_FLAGS"
|
|
fi
|
|
return 0
|
|
;;
|
|
esac
|
|
;;
|
|
*)
|
|
[[ $prev == $object ]] && \
|
|
COMPREPLY=( $( compgen -W 'help attach detach \
|
|
show list tree' -- "$cur" ) )
|
|
;;
|
|
esac
|
|
;;
|
|
perf)
|
|
case $command in
|
|
*)
|
|
[[ $prev == $object ]] && \
|
|
COMPREPLY=( $( compgen -W 'help \
|
|
show list' -- "$cur" ) )
|
|
;;
|
|
esac
|
|
;;
|
|
net)
|
|
case $command in
|
|
*)
|
|
[[ $prev == $object ]] && \
|
|
COMPREPLY=( $( compgen -W 'help \
|
|
show list' -- "$cur" ) )
|
|
;;
|
|
esac
|
|
;;
|
|
feature)
|
|
case $command in
|
|
probe)
|
|
[[ $prev == "dev" ]] && _sysfs_get_netdevs && return 0
|
|
[[ $prev == "prefix" ]] && return 0
|
|
if _bpftool_search_list 'macros'; then
|
|
COMPREPLY+=( $( compgen -W 'prefix' -- "$cur" ) )
|
|
else
|
|
COMPREPLY+=( $( compgen -W 'macros' -- "$cur" ) )
|
|
fi
|
|
_bpftool_one_of_list 'kernel dev'
|
|
return 0
|
|
;;
|
|
*)
|
|
[[ $prev == $object ]] && \
|
|
COMPREPLY=( $( compgen -W 'help probe' -- "$cur" ) )
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
} &&
|
|
complete -F _bpftool bpftool
|
|
|
|
# ex: ts=4 sw=4 et filetype=sh
|