1# bpftool(8) bash completion                               -*- shell-script -*-
2#
3# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4# Copyright (C) 2017-2018 Netronome Systems, Inc.
5#
6# Author: Quentin Monnet <quentin.monnet@netronome.com>
7
8# Takes a list of words in argument; each one of them is added to COMPREPLY if
9# it is not already present on the command line. Returns no value.
10_bpftool_once_attr()
11{
12    local w idx found
13    for w in $*; do
14        found=0
15        for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
16            if [[ $w == ${words[idx]} ]]; then
17                found=1
18                break
19            fi
20        done
21        [[ $found -eq 0 ]] && \
22            COMPREPLY+=( $( compgen -W "$w" -- "$cur" ) )
23    done
24}
25
26# Takes a list of words as argument; if any of those words is present on the
27# command line, return 0. Otherwise, return 1.
28_bpftool_search_list()
29{
30    local w idx
31    for w in $*; do
32        for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
33            [[ $w == ${words[idx]} ]] && return 0
34        done
35    done
36    return 1
37}
38
39# Takes a list of words in argument; adds them all to COMPREPLY if none of them
40# is already present on the command line. Returns no value.
41_bpftool_one_of_list()
42{
43    _bpftool_search_list $* && return 1
44    COMPREPLY+=( $( compgen -W "$*" -- "$cur" ) )
45}
46
47_bpftool_get_map_ids()
48{
49    COMPREPLY+=( $( compgen -W "$( bpftool -jp map  2>&1 | \
50        command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
51}
52
53# Takes map type and adds matching map ids to the list of suggestions.
54_bpftool_get_map_ids_for_type()
55{
56    local type="$1"
57    COMPREPLY+=( $( compgen -W "$( bpftool -jp map  2>&1 | \
58        command grep -C2 "$type" | \
59        command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
60}
61
62_bpftool_get_map_names()
63{
64    COMPREPLY+=( $( compgen -W "$( bpftool -jp map  2>&1 | \
65        command sed -n 's/.*"name": \(.*\),$/\1/p' )" -- "$cur" ) )
66}
67
68# Takes map type and adds matching map names to the list of suggestions.
69_bpftool_get_map_names_for_type()
70{
71    local type="$1"
72    COMPREPLY+=( $( compgen -W "$( bpftool -jp map  2>&1 | \
73        command grep -C2 "$type" | \
74        command sed -n 's/.*"name": \(.*\),$/\1/p' )" -- "$cur" ) )
75}
76
77_bpftool_get_prog_ids()
78{
79    COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 | \
80        command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
81}
82
83_bpftool_get_prog_tags()
84{
85    COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 | \
86        command sed -n 's/.*"tag": "\(.*\)",$/\1/p' )" -- "$cur" ) )
87}
88
89_bpftool_get_prog_names()
90{
91    COMPREPLY+=( $( compgen -W "$( bpftool -jp prog 2>&1 | \
92        command sed -n 's/.*"name": "\(.*\)",$/\1/p' )" -- "$cur" ) )
93}
94
95_bpftool_get_btf_ids()
96{
97    COMPREPLY+=( $( compgen -W "$( bpftool -jp btf 2>&1 | \
98        command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
99}
100
101_bpftool_get_link_ids()
102{
103    COMPREPLY+=( $( compgen -W "$( bpftool -jp link 2>&1 | \
104        command sed -n 's/.*"id": \(.*\),$/\1/p' )" -- "$cur" ) )
105}
106
107_bpftool_get_obj_map_names()
108{
109    local obj maps
110
111    obj=$1
112
113    maps=$(objdump -j .maps -t $obj 2>/dev/null | \
114        command awk '/g     . .maps/ {print $NF}')
115
116    COMPREPLY+=( $( compgen -W "$maps" -- "$cur" ) )
117}
118
119_bpftool_get_obj_map_idxs()
120{
121    local obj nmaps
122
123    obj=$1
124
125    nmaps=$(objdump -j maps -t $obj 2>/dev/null | grep -c 'g     . maps')
126
127    COMPREPLY+=( $( compgen -W "$(seq 0 $((nmaps - 1)))" -- "$cur" ) )
128}
129
130_sysfs_get_netdevs()
131{
132    COMPREPLY+=( $( compgen -W "$( ls /sys/class/net 2>/dev/null )" -- \
133        "$cur" ) )
134}
135
136# Retrieve type of the map that we are operating on.
137_bpftool_map_guess_map_type()
138{
139    local keyword idx ref=""
140    for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
141        case "${words[$((idx-2))]}" in
142            lookup|update)
143                keyword=${words[$((idx-1))]}
144                ref=${words[$((idx))]}
145                ;;
146            push)
147                printf "stack"
148                return 0
149                ;;
150            enqueue)
151                printf "queue"
152                return 0
153                ;;
154        esac
155    done
156    [[ -z $ref ]] && return 0
157
158    local type
159    type=$(bpftool -jp map show $keyword $ref | \
160        command sed -n 's/.*"type": "\(.*\)",$/\1/p')
161    [[ -n $type ]] && printf $type
162}
163
164_bpftool_map_update_get_id()
165{
166    local command="$1"
167
168    # Is it the map to update, or a map to insert into the map to update?
169    # Search for "value" keyword.
170    local idx value
171    for (( idx=7; idx < ${#words[@]}-1; idx++ )); do
172        if [[ ${words[idx]} == "value" ]]; then
173            value=1
174            break
175        fi
176    done
177    if [[ $value -eq 0 ]]; then
178        case "$command" in
179            push)
180                _bpftool_get_map_ids_for_type stack
181                ;;
182            enqueue)
183                _bpftool_get_map_ids_for_type queue
184                ;;
185            *)
186                _bpftool_get_map_ids
187                ;;
188        esac
189        return 0
190    fi
191
192    # Id to complete is for a value. It can be either prog id or map id. This
193    # depends on the type of the map to update.
194    local type=$(_bpftool_map_guess_map_type)
195    case $type in
196        array_of_maps|hash_of_maps)
197            _bpftool_get_map_ids
198            return 0
199            ;;
200        prog_array)
201            _bpftool_get_prog_ids
202            return 0
203            ;;
204        *)
205            return 0
206            ;;
207    esac
208}
209
210_bpftool_map_update_get_name()
211{
212    local command="$1"
213
214    # Is it the map to update, or a map to insert into the map to update?
215    # Search for "value" keyword.
216    local idx value
217    for (( idx=7; idx < ${#words[@]}-1; idx++ )); do
218        if [[ ${words[idx]} == "value" ]]; then
219            value=1
220            break
221        fi
222    done
223    if [[ $value -eq 0 ]]; then
224        case "$command" in
225            push)
226                _bpftool_get_map_names_for_type stack
227                ;;
228            enqueue)
229                _bpftool_get_map_names_for_type queue
230                ;;
231            *)
232                _bpftool_get_map_names
233                ;;
234        esac
235        return 0
236    fi
237
238    # Name to complete is for a value. It can be either prog name or map name. This
239    # depends on the type of the map to update.
240    local type=$(_bpftool_map_guess_map_type)
241    case $type in
242        array_of_maps|hash_of_maps)
243            _bpftool_get_map_names
244            return 0
245            ;;
246        prog_array)
247            _bpftool_get_prog_names
248            return 0
249            ;;
250        *)
251            return 0
252            ;;
253    esac
254}
255
256_bpftool()
257{
258    local cur prev words cword comp_args
259    local json=0
260    _init_completion -- "$@" || return
261
262    # Deal with options
263    if [[ ${words[cword]} == -* ]]; then
264        local c='--version --json --pretty --bpffs --mapcompat --debug \
265            --use-loader --base-btf'
266        COMPREPLY=( $( compgen -W "$c" -- "$cur" ) )
267        return 0
268    fi
269    if _bpftool_search_list -j --json -p --pretty; then
270        json=1
271    fi
272
273    # Deal with simplest keywords
274    case $prev in
275        help|hex)
276            return 0
277            ;;
278        tag)
279            _bpftool_get_prog_tags
280            return 0
281            ;;
282        dev|offload_dev|xdpmeta_dev)
283            _sysfs_get_netdevs
284            return 0
285            ;;
286        file|pinned|-B|--base-btf)
287            _filedir
288            return 0
289            ;;
290        batch)
291            COMPREPLY=( $( compgen -W 'file' -- "$cur" ) )
292            return 0
293            ;;
294    esac
295
296    # Remove all options so completions don't have to deal with them.
297    local i pprev
298    for (( i=1; i < ${#words[@]}; )); do
299        if [[ ${words[i]::1} == - ]] &&
300            [[ ${words[i]} != "-B" ]] && [[ ${words[i]} != "--base-btf" ]]; then
301            words=( "${words[@]:0:i}" "${words[@]:i+1}" )
302            [[ $i -le $cword ]] && cword=$(( cword - 1 ))
303        else
304            i=$(( ++i ))
305        fi
306    done
307    cur=${words[cword]}
308    prev=${words[cword - 1]}
309    pprev=${words[cword - 2]}
310
311    local object=${words[1]}
312
313    if [[ -z $object || $cword -eq 1 ]]; then
314        case $cur in
315            *)
316                COMPREPLY=( $( compgen -W "$( bpftool help 2>&1 | \
317                    command sed \
318                    -e '/OBJECT := /!d' \
319                    -e 's/.*{//' \
320                    -e 's/}.*//' \
321                    -e 's/|//g' )" -- "$cur" ) )
322                COMPREPLY+=( $( compgen -W 'batch help' -- "$cur" ) )
323                return 0
324                ;;
325        esac
326    fi
327
328    local command=${words[2]}
329    [[ $command == help ]] && return 0
330
331    local MAP_TYPE='id pinned name'
332    local PROG_TYPE='id pinned tag name'
333
334    # Completion depends on object and command in use
335    case $object in
336        prog)
337            # Complete id and name, only for subcommands that use prog (but no
338            # map) ids/names.
339            case $command in
340                show|list|dump|pin)
341                    case $prev in
342                        id)
343                            _bpftool_get_prog_ids
344                            return 0
345                            ;;
346                        name)
347                            _bpftool_get_prog_names
348                            return 0
349                            ;;
350                    esac
351                    ;;
352            esac
353
354            local METRIC_TYPE='cycles instructions l1d_loads llc_misses \
355                itlb_misses dtlb_misses'
356            case $command in
357                show|list)
358                    [[ $prev != "$command" ]] && return 0
359                    COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
360                    return 0
361                    ;;
362                dump)
363                    case $prev in
364                        $command)
365                            COMPREPLY+=( $( compgen -W "xlated jited" -- \
366                                "$cur" ) )
367                            return 0
368                            ;;
369                        xlated|jited)
370                            COMPREPLY=( $( compgen -W "$PROG_TYPE" -- \
371                                "$cur" ) )
372                            return 0
373                            ;;
374                        *)
375                            # "file" is not compatible with other keywords here
376                            if _bpftool_search_list 'file'; then
377                                return 0
378                            fi
379                            if ! _bpftool_search_list 'linum opcodes visual'; then
380                                _bpftool_once_attr 'file'
381                            fi
382                            _bpftool_once_attr 'linum opcodes'
383                            if _bpftool_search_list 'xlated' && [[ "$json" == 0 ]]; then
384                                _bpftool_once_attr 'visual'
385                            fi
386                            return 0
387                            ;;
388                    esac
389                    ;;
390                pin)
391                    if [[ $prev == "$command" ]]; then
392                        COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
393                    else
394                        _filedir
395                    fi
396                    return 0
397                    ;;
398                attach|detach)
399                    case $cword in
400                        3)
401                            COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
402                            return 0
403                            ;;
404                        4)
405                            case $prev in
406                                id)
407                                    _bpftool_get_prog_ids
408                                    ;;
409                                name)
410                                    _bpftool_get_prog_names
411                                    ;;
412                                pinned)
413                                    _filedir
414                                    ;;
415                            esac
416                            return 0
417                            ;;
418                        5)
419                            local BPFTOOL_PROG_ATTACH_TYPES='sk_msg_verdict \
420                                sk_skb_verdict sk_skb_stream_verdict sk_skb_stream_parser \
421                                flow_dissector'
422                            COMPREPLY=( $( compgen -W "$BPFTOOL_PROG_ATTACH_TYPES" -- "$cur" ) )
423                            return 0
424                            ;;
425                        6)
426                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
427                            return 0
428                            ;;
429                        7)
430                            case $prev in
431                                id)
432                                    _bpftool_get_map_ids
433                                    ;;
434                                name)
435                                    _bpftool_get_map_names
436                                    ;;
437                                pinned)
438                                    _filedir
439                                    ;;
440                            esac
441                            return 0
442                            ;;
443                    esac
444                    ;;
445                load|loadall)
446                    local obj
447
448                    # Propose "load/loadall" to complete "bpftool prog load",
449                    # or bash tries to complete "load" as a filename below.
450                    if [[ ${#words[@]} -eq 3 ]]; then
451                        COMPREPLY=( $( compgen -W "load loadall" -- "$cur" ) )
452                        return 0
453                    fi
454
455                    if [[ ${#words[@]} -lt 6 ]]; then
456                        _filedir
457                        return 0
458                    fi
459
460                    obj=${words[3]}
461
462                    if [[ ${words[-4]} == "map" ]]; then
463                        COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
464                        return 0
465                    fi
466                    if [[ ${words[-3]} == "map" ]]; then
467                        if [[ ${words[-2]} == "idx" ]]; then
468                            _bpftool_get_obj_map_idxs $obj
469                        elif [[ ${words[-2]} == "name" ]]; then
470                            _bpftool_get_obj_map_names $obj
471                        fi
472                        return 0
473                    fi
474                    if [[ ${words[-2]} == "map" ]]; then
475                        COMPREPLY=( $( compgen -W "idx name" -- "$cur" ) )
476                        return 0
477                    fi
478
479                    case $prev in
480                        type)
481                            local BPFTOOL_PROG_LOAD_TYPES='socket kprobe \
482                                kretprobe classifier flow_dissector \
483                                action tracepoint raw_tracepoint \
484                                xdp perf_event cgroup/skb cgroup/sock \
485                                cgroup/dev lwt_in lwt_out lwt_xmit \
486                                lwt_seg6local sockops sk_skb sk_msg lirc_mode2 \
487                                cgroup/bind4 cgroup/bind6 \
488                                cgroup/connect4 cgroup/connect6 cgroup/connect_unix \
489                                cgroup/getpeername4 cgroup/getpeername6 cgroup/getpeername_unix \
490                                cgroup/getsockname4 cgroup/getsockname6 cgroup/getsockname_unix \
491                                cgroup/sendmsg4 cgroup/sendmsg6 cgroup/sendmsg_unix \
492                                cgroup/recvmsg4 cgroup/recvmsg6 cgroup/recvmsg_unix \
493                                cgroup/post_bind4 cgroup/post_bind6 \
494                                cgroup/sysctl cgroup/getsockopt \
495                                cgroup/setsockopt cgroup/sock_release struct_ops \
496                                fentry fexit freplace sk_lookup'
497                            COMPREPLY=( $( compgen -W "$BPFTOOL_PROG_LOAD_TYPES" -- "$cur" ) )
498                            return 0
499                            ;;
500                        id)
501                            _bpftool_get_map_ids
502                            return 0
503                            ;;
504                        name)
505                            _bpftool_get_map_names
506                            return 0
507                            ;;
508                        pinned|pinmaps)
509                            _filedir
510                            return 0
511                            ;;
512                        *)
513                            COMPREPLY=( $( compgen -W "map" -- "$cur" ) )
514                            _bpftool_once_attr 'type pinmaps autoattach'
515                            _bpftool_one_of_list 'offload_dev xdpmeta_dev'
516                            return 0
517                            ;;
518                    esac
519                    ;;
520                tracelog)
521                    return 0
522                    ;;
523                profile)
524                    case $cword in
525                        3)
526                            COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
527                            return 0
528                            ;;
529                        4)
530                            case $prev in
531                                id)
532                                    _bpftool_get_prog_ids
533                                    ;;
534                                name)
535                                    _bpftool_get_prog_names
536                                    ;;
537                                pinned)
538                                    _filedir
539                                    ;;
540                            esac
541                            return 0
542                            ;;
543                        5)
544                            COMPREPLY=( $( compgen -W "$METRIC_TYPE duration" -- "$cur" ) )
545                            return 0
546                            ;;
547                        *)
548                            [[ $prev == duration ]] && return 0
549                            _bpftool_once_attr "$METRIC_TYPE"
550                            return 0
551                            ;;
552                    esac
553                    ;;
554                run)
555                    if [[ ${#words[@]} -eq 4 ]]; then
556                        COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
557                        return 0
558                    fi
559                    case $prev in
560                        id)
561                            _bpftool_get_prog_ids
562                            return 0
563                            ;;
564                        name)
565                            _bpftool_get_prog_names
566                            return 0
567                            ;;
568                        data_in|data_out|ctx_in|ctx_out)
569                            _filedir
570                            return 0
571                            ;;
572                        repeat|data_size_out|ctx_size_out)
573                            return 0
574                            ;;
575                        *)
576                            _bpftool_once_attr 'data_in data_out data_size_out \
577                                ctx_in ctx_out ctx_size_out repeat'
578                            return 0
579                            ;;
580                    esac
581                    ;;
582                *)
583                    [[ $prev == $object ]] && \
584                        COMPREPLY=( $( compgen -W 'dump help pin attach detach \
585                            load loadall show list tracelog run profile' -- "$cur" ) )
586                    ;;
587            esac
588            ;;
589        struct_ops)
590            local STRUCT_OPS_TYPE='id name'
591            case $command in
592                show|list|dump|unregister)
593                    case $prev in
594                        $command)
595                            COMPREPLY=( $( compgen -W "$STRUCT_OPS_TYPE" -- "$cur" ) )
596                            ;;
597                        id)
598                            _bpftool_get_map_ids_for_type struct_ops
599                            ;;
600                        name)
601                            _bpftool_get_map_names_for_type struct_ops
602                            ;;
603                    esac
604                    return 0
605                    ;;
606                register)
607                    [[ $prev == $command ]] && _filedir
608                    return 0
609                    ;;
610                *)
611                    [[ $prev == $object ]] && \
612                        COMPREPLY=( $( compgen -W 'register unregister show list dump help' \
613                            -- "$cur" ) )
614                    ;;
615            esac
616            ;;
617        iter)
618            case $command in
619                pin)
620                    case $prev in
621                        $command)
622                            _filedir
623                            ;;
624                        id)
625                            _bpftool_get_map_ids
626                            ;;
627                        name)
628                            _bpftool_get_map_names
629                            ;;
630                        pinned)
631                            _filedir
632                            ;;
633                        map)
634                            _bpftool_one_of_list $MAP_TYPE
635                            ;;
636                        *)
637                            _bpftool_once_attr 'map'
638                            ;;
639                    esac
640                    return 0
641                    ;;
642                *)
643                    [[ $prev == $object ]] && \
644                        COMPREPLY=( $( compgen -W 'pin help' \
645                            -- "$cur" ) )
646                    ;;
647            esac
648            ;;
649        map)
650            case $command in
651                show|list|dump|peek|pop|dequeue|freeze)
652                    case $prev in
653                        $command)
654                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
655                            return 0
656                            ;;
657                        id)
658                            case "$command" in
659                                peek)
660                                    _bpftool_get_map_ids_for_type stack
661                                    _bpftool_get_map_ids_for_type queue
662                                    ;;
663                                pop)
664                                    _bpftool_get_map_ids_for_type stack
665                                    ;;
666                                dequeue)
667                                    _bpftool_get_map_ids_for_type queue
668                                    ;;
669                                *)
670                                    _bpftool_get_map_ids
671                                    ;;
672                            esac
673                            return 0
674                            ;;
675                        name)
676                            case "$command" in
677                                peek)
678                                    _bpftool_get_map_names_for_type stack
679                                    _bpftool_get_map_names_for_type queue
680                                    ;;
681                                pop)
682                                    _bpftool_get_map_names_for_type stack
683                                    ;;
684                                dequeue)
685                                    _bpftool_get_map_names_for_type queue
686                                    ;;
687                                *)
688                                    _bpftool_get_map_names
689                                    ;;
690                            esac
691                            return 0
692                            ;;
693                        *)
694                            return 0
695                            ;;
696                    esac
697                    ;;
698                create)
699                    case $prev in
700                        $command)
701                            _filedir
702                            return 0
703                            ;;
704                        type)
705                            local BPFTOOL_MAP_CREATE_TYPES="$(bpftool feature list_builtins map_types 2>/dev/null | \
706                                grep -v '^unspec$')"
707                            COMPREPLY=( $( compgen -W "$BPFTOOL_MAP_CREATE_TYPES" -- "$cur" ) )
708                            return 0
709                            ;;
710                        key|value|flags|entries)
711                            return 0
712                            ;;
713                        inner_map)
714                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
715                            return 0
716                            ;;
717                        id)
718                            _bpftool_get_map_ids
719                            ;;
720                        name)
721                            case $pprev in
722                                inner_map)
723                                    _bpftool_get_map_names
724                                    ;;
725                                *)
726                                    return 0
727                                    ;;
728                            esac
729                            ;;
730                        *)
731                            _bpftool_once_attr 'type key value entries name flags offload_dev'
732                            if _bpftool_search_list 'array_of_maps' 'hash_of_maps'; then
733                                _bpftool_once_attr 'inner_map'
734                            fi
735                            return 0
736                            ;;
737                    esac
738                    ;;
739                lookup|getnext|delete)
740                    case $prev in
741                        $command)
742                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
743                            return 0
744                            ;;
745                        id)
746                            _bpftool_get_map_ids
747                            return 0
748                            ;;
749                        name)
750                            _bpftool_get_map_names
751                            return 0
752                            ;;
753                        key)
754                            COMPREPLY+=( $( compgen -W 'hex' -- "$cur" ) )
755                            ;;
756                        *)
757                            case $(_bpftool_map_guess_map_type) in
758                                queue|stack)
759                                    return 0
760                                    ;;
761                            esac
762
763                            _bpftool_once_attr 'key'
764                            return 0
765                            ;;
766                    esac
767                    ;;
768                update|push|enqueue)
769                    case $prev in
770                        $command)
771                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
772                            return 0
773                            ;;
774                        id)
775                            _bpftool_map_update_get_id $command
776                            return 0
777                            ;;
778                        name)
779                            _bpftool_map_update_get_name $command
780                            return 0
781                            ;;
782                        key)
783                            COMPREPLY+=( $( compgen -W 'hex' -- "$cur" ) )
784                            ;;
785                        value)
786                            # We can have bytes, or references to a prog or a
787                            # map, depending on the type of the map to update.
788                            case "$(_bpftool_map_guess_map_type)" in
789                                array_of_maps|hash_of_maps)
790                                    COMPREPLY+=( $( compgen -W "$MAP_TYPE" \
791                                        -- "$cur" ) )
792                                    return 0
793                                    ;;
794                                prog_array)
795                                    COMPREPLY+=( $( compgen -W "$PROG_TYPE" \
796                                        -- "$cur" ) )
797                                    return 0
798                                    ;;
799                                *)
800                                    COMPREPLY+=( $( compgen -W 'hex' \
801                                        -- "$cur" ) )
802                                    return 0
803                                    ;;
804                            esac
805                            return 0
806                            ;;
807                        *)
808                            case $(_bpftool_map_guess_map_type) in
809                                queue|stack)
810                                    _bpftool_once_attr 'value'
811                                    return 0;
812                                    ;;
813                            esac
814
815                            _bpftool_once_attr 'key'
816                            local UPDATE_FLAGS='any exist noexist' idx
817                            for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
818                                if [[ ${words[idx]} == 'value' ]]; then
819                                    # 'value' is present, but is not the last
820                                    # word i.e. we can now have UPDATE_FLAGS.
821                                    _bpftool_one_of_list "$UPDATE_FLAGS"
822                                    return 0
823                                fi
824                            done
825                            for (( idx=3; idx < ${#words[@]}-1; idx++ )); do
826                                if [[ ${words[idx]} == 'key' ]]; then
827                                    # 'key' is present, but is not the last
828                                    # word i.e. we can now have 'value'.
829                                    _bpftool_once_attr 'value'
830                                    return 0
831                                fi
832                            done
833
834                            return 0
835                            ;;
836                    esac
837                    ;;
838                pin)
839                    case $prev in
840                        $command)
841                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
842                            ;;
843                        id)
844                            _bpftool_get_map_ids
845                            ;;
846                        name)
847                            _bpftool_get_map_names
848                            ;;
849                    esac
850                    return 0
851                    ;;
852                event_pipe)
853                    case $prev in
854                        $command)
855                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
856                            return 0
857                            ;;
858                        id)
859                            _bpftool_get_map_ids_for_type perf_event_array
860                            return 0
861                            ;;
862                        name)
863                            _bpftool_get_map_names_for_type perf_event_array
864                            return 0
865                            ;;
866                        cpu)
867                            return 0
868                            ;;
869                        index)
870                            return 0
871                            ;;
872                        *)
873                            _bpftool_once_attr 'cpu index'
874                            return 0
875                            ;;
876                    esac
877                    ;;
878                *)
879                    [[ $prev == $object ]] && \
880                        COMPREPLY=( $( compgen -W 'delete dump getnext help \
881                            lookup pin event_pipe show list update create \
882                            peek push enqueue pop dequeue freeze' -- \
883                            "$cur" ) )
884                    ;;
885            esac
886            ;;
887        btf)
888            local MAP_TYPE='id pinned name'
889            case $command in
890                dump)
891                    case $prev in
892                        $command)
893                            COMPREPLY+=( $( compgen -W "id map prog file" -- \
894                                "$cur" ) )
895                            return 0
896                            ;;
897                        prog)
898                            COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
899                            return 0
900                            ;;
901                        map)
902                            COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
903                            return 0
904                            ;;
905                        id)
906                            case $pprev in
907                                prog)
908                                    _bpftool_get_prog_ids
909                                    ;;
910                                map)
911                                    _bpftool_get_map_ids
912                                    ;;
913                                $command)
914                                    _bpftool_get_btf_ids
915                                    ;;
916                            esac
917                            return 0
918                            ;;
919                        name)
920                            case $pprev in
921                                prog)
922                                    _bpftool_get_prog_names
923                                    ;;
924                                map)
925                                    _bpftool_get_map_names
926                                    ;;
927                            esac
928                            return 0
929                            ;;
930                        format)
931                            COMPREPLY=( $( compgen -W "c raw" -- "$cur" ) )
932                            ;;
933                        *)
934                            # emit extra options
935                            case ${words[3]} in
936                                id|file)
937                                    _bpftool_once_attr 'format'
938                                    ;;
939                                map|prog)
940                                    if [[ ${words[3]} == "map" ]] && [[ $cword == 6 ]]; then
941                                        COMPREPLY+=( $( compgen -W "key value kv all" -- "$cur" ) )
942                                    fi
943                                    _bpftool_once_attr 'format'
944                                    ;;
945                                *)
946                                    ;;
947                            esac
948                            return 0
949                            ;;
950                    esac
951                    ;;
952                show|list)
953                    case $prev in
954                        $command)
955                            COMPREPLY+=( $( compgen -W "id" -- "$cur" ) )
956                            ;;
957                        id)
958                            _bpftool_get_btf_ids
959                            ;;
960                    esac
961                    return 0
962                    ;;
963                *)
964                    [[ $prev == $object ]] && \
965                        COMPREPLY=( $( compgen -W 'dump help show list' \
966                            -- "$cur" ) )
967                    ;;
968            esac
969            ;;
970        gen)
971            case $command in
972                object)
973                    _filedir
974                    return 0
975                    ;;
976                skeleton)
977                    case $prev in
978                        $command)
979                            _filedir
980                            return 0
981                            ;;
982                        *)
983                            _bpftool_once_attr 'name'
984                            return 0
985                            ;;
986                    esac
987                    ;;
988                subskeleton)
989                    case $prev in
990                        $command)
991                            _filedir
992                            return 0
993                            ;;
994                        *)
995                            _bpftool_once_attr 'name'
996                            return 0
997                            ;;
998                    esac
999                    ;;
1000                min_core_btf)
1001                    _filedir
1002                    return 0
1003                    ;;
1004                *)
1005                    [[ $prev == $object ]] && \
1006                        COMPREPLY=( $( compgen -W 'object skeleton subskeleton help min_core_btf' -- "$cur" ) )
1007                    ;;
1008            esac
1009            ;;
1010        cgroup)
1011            case $command in
1012                show|list|tree)
1013                    case $cword in
1014                        3)
1015                            _filedir
1016                            ;;
1017                        4)
1018                            COMPREPLY=( $( compgen -W 'effective' -- "$cur" ) )
1019                            ;;
1020                    esac
1021                    return 0
1022                    ;;
1023                attach|detach)
1024                    local BPFTOOL_CGROUP_ATTACH_TYPES="$(bpftool feature list_builtins attach_types 2>/dev/null | \
1025                        grep '^cgroup_')"
1026                    local ATTACH_FLAGS='multi override'
1027                    # Check for $prev = $command first
1028                    if [ $prev = $command ]; then
1029                        _filedir
1030                        return 0
1031                    # Then check for attach type. This is done outside of the
1032                    # "case $prev in" to avoid writing the whole list of attach
1033                    # types again as pattern to match (where we cannot reuse
1034                    # our variable).
1035                    elif [[ $BPFTOOL_CGROUP_ATTACH_TYPES =~ $prev ]]; then
1036                            COMPREPLY=( $( compgen -W "$PROG_TYPE" -- \
1037                                "$cur" ) )
1038                            return 0
1039                    fi
1040                    # case/esac for the other cases
1041                    case $prev in
1042                        id)
1043                            _bpftool_get_prog_ids
1044                            return 0
1045                            ;;
1046                        *)
1047                            if ! _bpftool_search_list "$BPFTOOL_CGROUP_ATTACH_TYPES"; then
1048                                COMPREPLY=( $( compgen -W \
1049                                    "$BPFTOOL_CGROUP_ATTACH_TYPES" -- "$cur" ) )
1050                            elif [[ "$command" == "attach" ]]; then
1051                                # We have an attach type on the command line,
1052                                # but it is not the previous word, or
1053                                # "id|pinned|tag|name" (we already checked for
1054                                # that). This should only leave the case when
1055                                # we need attach flags for "attach" commamnd.
1056                                _bpftool_one_of_list "$ATTACH_FLAGS"
1057                            fi
1058                            return 0
1059                            ;;
1060                    esac
1061                    ;;
1062                *)
1063                    [[ $prev == $object ]] && \
1064                        COMPREPLY=( $( compgen -W 'help attach detach \
1065                            show list tree' -- "$cur" ) )
1066                    ;;
1067            esac
1068            ;;
1069        perf)
1070            case $command in
1071                *)
1072                    [[ $prev == $object ]] && \
1073                        COMPREPLY=( $( compgen -W 'help \
1074                            show list' -- "$cur" ) )
1075                    ;;
1076            esac
1077            ;;
1078        net)
1079            local ATTACH_TYPES='xdp xdpgeneric xdpdrv xdpoffload'
1080            case $command in
1081                show|list)
1082                    [[ $prev != "$command" ]] && return 0
1083                    COMPREPLY=( $( compgen -W 'dev' -- "$cur" ) )
1084                    return 0
1085                    ;;
1086                attach)
1087                    case $cword in
1088                        3)
1089                            COMPREPLY=( $( compgen -W "$ATTACH_TYPES" -- "$cur" ) )
1090                            return 0
1091                            ;;
1092                        4)
1093                            COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
1094                            return 0
1095                            ;;
1096                        5)
1097                            case $prev in
1098                                id)
1099                                    _bpftool_get_prog_ids
1100                                    ;;
1101                                name)
1102                                    _bpftool_get_prog_names
1103                                    ;;
1104                                pinned)
1105                                    _filedir
1106                                    ;;
1107                            esac
1108                            return 0
1109                            ;;
1110                        6)
1111                            COMPREPLY=( $( compgen -W 'dev' -- "$cur" ) )
1112                            return 0
1113                            ;;
1114                        8)
1115                            _bpftool_once_attr 'overwrite'
1116                            return 0
1117                            ;;
1118                    esac
1119                    ;;
1120                detach)
1121                    case $cword in
1122                        3)
1123                            COMPREPLY=( $( compgen -W "$ATTACH_TYPES" -- "$cur" ) )
1124                            return 0
1125                            ;;
1126                        4)
1127                            COMPREPLY=( $( compgen -W 'dev' -- "$cur" ) )
1128                            return 0
1129                            ;;
1130                    esac
1131                    ;;
1132                *)
1133                    [[ $prev == $object ]] && \
1134                        COMPREPLY=( $( compgen -W 'help \
1135                            show list attach detach' -- "$cur" ) )
1136                    ;;
1137            esac
1138            ;;
1139        feature)
1140            case $command in
1141                probe)
1142                    [[ $prev == "prefix" ]] && return 0
1143                    if _bpftool_search_list 'macros'; then
1144                        _bpftool_once_attr 'prefix'
1145                    else
1146                        COMPREPLY+=( $( compgen -W 'macros' -- "$cur" ) )
1147                    fi
1148                    _bpftool_one_of_list 'kernel dev'
1149                    _bpftool_once_attr 'full unprivileged'
1150                    return 0
1151                    ;;
1152                list_builtins)
1153                    [[ $prev != "$command" ]] && return 0
1154                    COMPREPLY=( $( compgen -W 'prog_types map_types \
1155                        attach_types link_types helpers' -- "$cur" ) )
1156                    ;;
1157                *)
1158                    [[ $prev == $object ]] && \
1159                        COMPREPLY=( $( compgen -W 'help list_builtins probe' -- "$cur" ) )
1160                    ;;
1161            esac
1162            ;;
1163        link)
1164            case $command in
1165                show|list|pin|detach)
1166                    case $prev in
1167                        id)
1168                            _bpftool_get_link_ids
1169                            return 0
1170                            ;;
1171                    esac
1172                    ;;
1173            esac
1174
1175            local LINK_TYPE='id pinned'
1176            case $command in
1177                show|list)
1178                    [[ $prev != "$command" ]] && return 0
1179                    COMPREPLY=( $( compgen -W "$LINK_TYPE" -- "$cur" ) )
1180                    return 0
1181                    ;;
1182                pin|detach)
1183                    if [[ $prev == "$command" ]]; then
1184                        COMPREPLY=( $( compgen -W "$LINK_TYPE" -- "$cur" ) )
1185                    elif [[ $pprev == "$command" ]]; then
1186                        _filedir
1187                    fi
1188                    return 0
1189                    ;;
1190                *)
1191                    [[ $prev == $object ]] && \
1192                        COMPREPLY=( $( compgen -W 'help pin detach show list' -- "$cur" ) )
1193                    ;;
1194            esac
1195            ;;
1196    esac
1197} &&
1198complete -F _bpftool bpftool
1199
1200# ex: ts=4 sw=4 et filetype=sh
1201