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# bpftool(8) bash completion -- shell-script -- # # Copyright (C) 2017 Netronome Systems, Inc. # # This software is dual licensed under the GNU General License # Version 2, June 1991 as shown in the file COPYING in the top-level # directory of this source tree or the BSD 2-Clause License provided # below. You have the option to license this software under the # complete terms of either license. # # The BSD 2-Clause License: # # Redistribution and use in source and binary forms, with or # without modification, are permitted provided that the following # conditions are met: # # 1. Redistributions of source code must retain the above # copyright notice, this list of conditions and the following # disclaimer. # # 2. Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following # disclaimer in the documentation and/or other materials # provided with the distribution. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. # # Author: Quentin Monnet <quentin.monnet@netronome.com> # Takes a list of words in argument; each one of them is added to COMPREPLY if # it is not already present on the command line. Returns no value. _bpftool_once_attr() { local w idx found for w in $; do found=0 for (( idx=3; idx < ${#words[@]}-1; idx++ )); do if [[ $w == ${words[idx]} ]]; then found=1 break fi done [[ $found -eq 0 ]] && \ COMPREPLY+=( $( compgen -W "$w" -- "$cur" ) ) done } # Takes a list of words as argument; if any of those words is present on the # command line, return 0. Otherwise, return 1. _bpftool_search_list() { local w idx for w in $; do for (( idx=3; idx < ${#words[@]}-1; idx++ )); do [[ $w == ${words[idx]} ]] && return 0 done done return 1 } # Takes a list of words in argument; adds them all to COMPREPLY if none of them # is already present on the command line. Returns no value. _bpftool_one_of_list() { _bpftool_search_list $* && return 1 COMPREPLY+=( $( compgen -W "$" -- "$cur" ) ) } _bpftool_get_map_ids() { COMPREPLY+=( $( compgen -W "$( bpftool -jp map 2>&1 \| \ command sed -n 's/."id": $.$,$/\1/p' )" -- "$cur" ) ) } _bpftool_get_prog_ids() { COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 \| \ command sed -n 's/."id": $.$,$/\1/p' )" -- "$cur" ) ) } _bpftool_get_prog_tags() { COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 \| \ command sed -n 's/."tag": "$.$",$/\1/p' )" -- "$cur" ) ) } # For bpftool map update: retrieve type of the map to update. _bpftool_map_update_map_type() { local keyword ref for (( idx=3; idx < ${#words[@]}-1; idx++ )); do if [[ ${words[$((idx-2))]} == "update" ]]; then keyword=${words[$((idx-1))]} ref=${words[$((idx))]} fi done [[ -z $ref ]] && return 0 local type type=$(bpftool -jp map show $keyword $ref \| \ command sed -n 's/."type": "$.$",$/\1/p') printf $type } _bpftool_map_update_get_id() { # Is it the map to update, or a map to insert into the map to update? # Search for "value" keyword. local idx value for (( idx=7; idx < ${#words[@]}-1; idx++ )); do if [[ ${words[idx]} == "value" ]]; then value=1 break fi done [[ $value -eq 0 ]] && _bpftool_get_map_ids && return 0 # Id to complete is for a value. It can be either prog id or map id. This # depends on the type of the map to update. local type=$(_bpftool_map_update_map_type) case $type in array_of_maps\|hash_of_maps) _bpftool_get_map_ids return 0 ;; prog_array) _bpftool_get_prog_ids return 0 ;; ) return 0 ;; esac } _bpftool() { local cur prev words objword _init_completion \|\| return # Deal with simplest keywords case $prev in help\|hex\|opcodes\|visual) return 0 ;; tag) _bpftool_get_prog_tags return 0 ;; file\|pinned) _filedir return 0 ;; batch) COMPREPLY=( $( compgen -W 'file' -- "$cur" ) ) return 0 ;; esac # Search for object and command local object command cmdword for (( cmdword=1; cmdword < ${#words[@]}-1; cmdword++ )); do [[ -n $object ]] && command=${words[cmdword]} && break [[ ${words[cmdword]} != -* ]] && object=${words[cmdword]} done if [[ -z $object ]]; then case $cur in -) local c='--version --json --pretty' COMPREPLY=( $( compgen -W "$c" -- "$cur" ) ) return 0 ;; ) COMPREPLY=( $( compgen -W "$( bpftool help 2>&1 \| \ command sed \ -e '/OBJECT := /!d' \ -e 's/.{//' \ -e 's/}.//' \ -e 's/\|//g' )" -- "$cur" ) ) COMPREPLY+=( $( compgen -W 'batch help' -- "$cur" ) ) return 0 ;; esac fi [[ $command == help ]] && return 0 # Completion depends on object and command in use case $object in prog) case $prev in id) _bpftool_get_prog_ids return 0 ;; esac local PROG_TYPE='id pinned tag' case $command in show\|list) [[ $prev != "$command" ]] && return 0 COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) ) return 0 ;; dump) case $prev in $command) COMPREPLY+=( $( compgen -W "xlated jited" -- \ "$cur" ) ) return 0 ;; xlated\|jited) COMPREPLY=( $( compgen -W "$PROG_TYPE" -- \ "$cur" ) ) return 0 ;; ) _bpftool_once_attr 'file' if _bpftool_search_list 'xlated'; then COMPREPLY+=( $( compgen -W 'opcodes visual' -- \ "$cur" ) ) else COMPREPLY+=( $( compgen -W 'opcodes' -- \ "$cur" ) ) fi return 0 ;; esac ;; pin) if [[ $prev == "$command" ]]; then COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) ) else _filedir fi return 0 ;; load) _filedir return 0 ;; ) [[ $prev == $object ]] && \ COMPREPLY=( $( compgen -W 'dump help pin load \ show list' -- "$cur" ) ) ;; esac ;; map) local MAP_TYPE='id pinned' case $command in show\|list\|dump) case $prev in $command) COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) ) return 0 ;; id) _bpftool_get_map_ids return 0 ;; ) return 0 ;; esac ;; lookup\|getnext\|delete) case $prev in $command) COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) ) return 0 ;; id) _bpftool_get_map_ids return 0 ;; key) COMPREPLY+=( $( compgen -W 'hex' -- "$cur" ) ) ;; ) _bpftool_once_attr 'key' return 0 ;; esac ;; update) case $prev in $command) COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) ) return 0 ;; id) _bpftool_map_update_get_id return 0 ;; key) COMPREPLY+=( $( compgen -W 'hex' -- "$cur" ) ) ;; 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_update_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 ;; ) _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 ;; ) [[ $prev == $object ]] && \ COMPREPLY=( $( compgen -W 'delete dump getnext help \ lookup pin show list update' -- "$cur" ) ) ;; esac ;; cgroup) case $command in show\|list) _filedir return 0 ;; attach\|detach) local ATTACH_TYPES='ingress egress sock_create sock_ops \ device' 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) 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=( $( compgen -W 'help attach detach \ show list' -- "$cur" ) ) ;; esac ;; esac } && complete -F _bpftool bpftool # ex: ts=4 sw=4 et filetype=sh

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