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Returns no value. _tc_once_attr() { local w subcword found for w in $*; do found=0 for (( subcword=3; subcword < ${#words[@]}-1; subcword++ )); do if [[ $w == ${words[subcword]} ]]; then found=1 break fi done [[ $found -eq 0 ]] && \ COMPREPLY+=( $( compgen -W "$w" -- "$cur" ) ) done } # 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 from the provided index. Returns # no value. _tc_once_attr_from() { local w subcword found from=$1 shift for w in $*; do found=0 for (( subcword=$from; subcword < ${#words[@]}-1; subcword++ )); do if [[ $w == ${words[subcword]} ]]; then found=1 break fi done [[ $found -eq 0 ]] && \ COMPREPLY+=( $( compgen -W "$w" -- "$cur" ) ) done } # 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. _tc_one_of_list() { local w subcword for w in $*; do for (( subcword=3; subcword < ${#words[@]}-1; subcword++ )); do [[ $w == ${words[subcword]} ]] && return 1 done done COMPREPLY+=( $( compgen -W "$*" -- "$cur" ) ) } # Takes a list of words in argument; adds them all to COMPREPLY if none of them # is already present on the command line from the provided index. Returns no # value. _tc_one_of_list_from() { local w subcword from=$1 shift for w in $*; do for (( subcword=$from; subcword < ${#words[@]}-1; subcword++ )); do [[ $w == ${words[subcword]} ]] && return 1 done done COMPREPLY+=( $( compgen -W "$*" -- "$cur" ) ) } # Returns "$cur ${cur}arg1 ${cur}arg2 ..." _tc_expand_units() { [[ $cur =~ ^[0-9]+ ]] || return 1 local value=${cur%%[^0-9]*} [[ $cur == $value ]] && echo $cur echo ${@/#/$value} } # Complete based on given word, usually $prev (or possibly the word before), # for when an argument or an option name has but a few possible arguments (so # tc does not take particular commands into account here). # Returns 0 is completion should stop after running this function, 1 otherwise. _tc_direct_complete() { case $1 in # Command options dev) _available_interfaces return 0 ;; classid) return 0 ;; estimator) local list=$( _tc_expand_units 'secs' 'msecs' 'usecs' ) COMPREPLY+=( $( compgen -W "$list" -- "$cur" ) ) return 0 ;; handle) return 0 ;; parent|flowid) local i iface ids cmd for (( i=3; i < ${#words[@]}-2; i++ )); do [[ ${words[i]} == dev ]] && iface=${words[i+1]} break done for cmd in qdisc class; do if [[ -n $iface ]]; then ids+=$( tc $cmd show dev $iface 2>/dev/null | \ cut -d\ -f 3 )" " else ids+=$( tc $cmd show 2>/dev/null | cut -d\ -f 3 ) fi done [[ $ids != " " ]] && \ COMPREPLY+=( $( compgen -W "$ids" -- "$cur" ) ) return 0 ;; protocol) # list comes from lib/ll_proto.c COMPREPLY+=( $( compgen -W ' 802.1Q 802.1ad 802_2 802_3 LLDP aarp \ all aoe arp atalk atmfate atmmpoa ax25 bpq can control cust \ ddcmp dec diag dna_dl dna_rc dna_rt econet ieeepup ieeepupat \ ip ipv4 ipv6 ipx irda lat localtalk loop mobitex ppp_disc \ ppp_mp ppp_ses ppptalk pup pupat rarp sca snap tipc tr_802_2 \ wan_ppp x25' -- "$cur" ) ) return 0 ;; prio) return 0 ;; stab) COMPREPLY+=( $( compgen -W 'mtu tsize mpu overhead linklayer' -- "$cur" ) ) ;; # Qdiscs and classes options alpha|bands|beta|buckets|corrupt|debug|decrement|default|\ default_index|depth|direct_qlen|divisor|duplicate|ewma|flow_limit|\ flows|hh_limit|increment|indices|linklayer|non_hh_weight|num_tc|\ penalty_burst|penalty_rate|prio|priomap|probability|queues|r2q|\ reorder|vq|vqs) return 0 ;; setup) COMPREPLY+=( $( compgen -W 'vqs' -- "$cur" ) ) return 0 ;; hw) COMPREPLY+=( $( compgen -W '1 0' -- "$cur" ) ) return 0 ;; distribution) COMPREPLY+=( $( compgen -W 'uniform normal pareto paretonormal' -- "$cur" ) ) return 0 ;; loss) COMPREPLY+=( $( compgen -W 'random state gmodel' -- "$cur" ) ) return 0 ;; # Qdiscs and classes options options gap|gmodel|state) return 0 ;; # Filters options map) COMPREPLY+=( $( compgen -W 'key' -- "$cur" ) ) return 0 ;; hash) COMPREPLY+=( $( compgen -W 'keys' -- "$cur" ) ) return 0 ;; indev) _available_interfaces return 0 ;; eth_type) COMPREPLY+=( $( compgen -W 'ipv4 ipv6' -- "$cur" ) ) return 0 ;; ip_proto) COMPREPLY+=( $( compgen -W 'tcp udp' -- "$cur" ) ) return 0 ;; # Filters options options key|keys) [[ ${words[@]} =~ graft ]] && return 1 COMPREPLY+=( $( compgen -W 'src dst proto proto-src proto-dst iif \ priority mark nfct nfct-src nfct-dst nfct-proto-src \ nfct-proto-dst rt-classid sk-uid sk-gid vlan-tag rxhash' -- \ "$cur" ) ) return 0 ;; # BPF options - used for filters, actions, and exec export|bytecode|bytecode-file|object-file) _filedir return 0 ;; object-pinned|graft) # Pinned object is probably under /sys/fs/bpf/ [[ -n "$cur" ]] && _filedir && return 0 COMPREPLY=( $( compgen -G "/sys/fs/bpf/*" -- "$cur" ) ) || _filedir compopt -o nospace return 0 ;; section) if (type objdump > /dev/null 2>&1) ; then local fword objfile section_list for (( fword=3; fword < ${#words[@]}-3; fword++ )); do if [[ ${words[fword]} == object-file ]]; then objfile=${words[fword+1]} break fi done section_list=$( objdump -h $objfile 2>/dev/null | \ sed -n 's/^ *[0-9]\+ \([^ ]*\) *.*/\1/p' ) COMPREPLY+=( $( compgen -W "$section_list" -- "$cur" ) ) fi return 0 ;; import|run) _filedir return 0 ;; type) COMPREPLY+=( $( compgen -W 'cls act' -- "$cur" ) ) return 0 ;; # Actions options random) _tc_one_of_list 'netrand determ' return 0 ;; # Units for option arguments bandwidth|maxrate|peakrate|rate) local list=$( _tc_expand_units 'bit' \ 'kbit' 'kibit' 'kbps' 'kibps' \ 'mbit' 'mibit' 'mbps' 'mibps' \ 'gbit' 'gibit' 'gbps' 'gibps' \ 'tbit' 'tibit' 'tbps' 'tibps' ) COMPREPLY+=( $( compgen -W "$list" -- "$cur" ) ) ;; admit_bytes|avpkt|burst|cell|initial_quantum|limit|max|min|mtu|mpu|\ overhead|quantum|redflowlist) local list=$( _tc_expand_units \ 'b' 'kbit' 'k' 'mbit' 'm' 'gbit' 'g' ) COMPREPLY+=( $( compgen -W "$list" -- "$cur" ) ) ;; db|delay|evict_timeout|interval|latency|perturb|rehash|reset_timeout|\ target|tupdate) local list=$( _tc_expand_units 'secs' 'msecs' 'usecs' ) COMPREPLY+=( $( compgen -W "$list" -- "$cur" ) ) ;; esac return 1 } # Complete with options names for qdiscs. Each qdisc has its own set of options # and it seems we cannot really parse it from anywhere, so we add it manually # in this function. # Returns 0 is completion should stop after running this function, 1 otherwise. _tc_qdisc_options() { case $1 in choke) _tc_once_attr 'limit bandwidth ecn min max burst' return 0 ;; codel) _tc_once_attr 'limit target interval' _tc_one_of_list 'ecn noecn' return 0 ;; bfifo|pfifo|pfifo_head_drop) _tc_once_attr 'limit' return 0 ;; fq) _tc_once_attr 'limit flow_limit quantum initial_quantum maxrate \ buckets' _tc_one_of_list 'pacing nopacing' return 0 ;; fq_codel) _tc_once_attr 'limit flows target interval quantum' _tc_one_of_list 'ecn noecn' return 0 ;; gred) _tc_once_attr 'setup vqs default grio vq prio limit min max avpkt \ burst probability bandwidth' return 0 ;; hhf) _tc_once_attr 'limit quantum hh_limit reset_timeout admit_bytes \ evict_timeout non_hh_weight' return 0 ;; mqprio) _tc_once_attr 'num_tc map queues hw' return 0 ;; netem) _tc_once_attr 'delay distribution corrupt duplicate loss ecn \ reorder rate' return 0 ;; pie) _tc_once_attr 'limit target tupdate alpha beta' _tc_one_of_list 'bytemode nobytemode' _tc_one_of_list 'ecn noecn' return 0 ;; red) _tc_once_attr 'limit min max avpkt burst adaptive probability \ bandwidth ecn harddrop' return 0 ;; rr|prio) _tc_once_attr 'bands priomap multiqueue' return 0 ;; sfb) _tc_once_attr 'rehash db limit max target increment decrement \ penalty_rate penalty_burst' return 0 ;; sfq) _tc_once_attr 'limit perturb quantum divisor flows depth headdrop \ redflowlimit min max avpkt burst probability ecn harddrop' return 0 ;; tbf) _tc_once_attr 'limit burst rate mtu peakrate latency overhead \ linklayer' return 0 ;; cbq) _tc_once_attr 'bandwidth avpkt mpu cell ewma' return 0 ;; dsmark) _tc_once_attr 'indices default_index set_tc_index' return 0 ;; hfsc) _tc_once_attr 'default' return 0 ;; htb) _tc_once_attr 'default r2q direct_qlen debug' return 0 ;; multiq|pfifo_fast|atm|drr|qfq) return 0 ;; esac return 1 } # Complete with options names for BPF filters or actions. # Returns 0 is completion should stop after running this function, 1 otherwise. _tc_bpf_options() { [[ ${words[${#words[@]}-3]} == object-file ]] && \ _tc_once_attr 'section export' [[ ${words[${#words[@]}-5]} == object-file ]] && \ [[ ${words[${#words[@]}-3]} =~ (section|export) ]] && \ _tc_once_attr 'section export' _tc_one_of_list 'bytecode bytecode-file object-file object-pinned' _tc_once_attr 'verbose index direct-action action classid' return 0 } # Complete with options names for filter actions. # This function is recursive, thus allowing multiple actions statement to be # parsed. # Returns 0 is completion should stop after running this function, 1 otherwise. _tc_filter_action_options() { for ((acwd=$1; acwd < ${#words[@]}-1; acwd++)); do if [[ action == ${words[acwd]} ]]; then _tc_filter_action_options $((acwd+1)) && return 0 fi done local action acwd for ((acwd=$1; acwd < ${#words[@]}-1; acwd++)); do if [[ $ACTION_KIND =~ ' '${words[acwd]}' ' ]]; then _tc_one_of_list_from $acwd action _tc_action_options $acwd && return 0 fi done _tc_one_of_list_from $acwd $ACTION_KIND return 0 } # Complete with options names for filters. # Returns 0 is completion should stop after running this function, 1 otherwise. _tc_filter_options() { for ((acwd=$1; acwd < ${#words[@]}-1; acwd++)); do if [[ action == ${words[acwd]} ]]; then _tc_filter_action_options $((acwd+1)) && return 0 fi done filter=${words[$1]} case $filter in basic) _tc_once_attr 'match action classid' return 0 ;; bpf) _tc_bpf_options return 0 ;; cgroup) _tc_once_attr 'match action' return 0 ;; flow) local i for (( i=5; i < ${#words[@]}-1; i++ )); do if [[ ${words[i]} =~ ^keys?$ ]]; then _tc_direct_complete 'key' COMPREPLY+=( $( compgen -W 'or and xor rshift addend' -- \ "$cur" ) ) break fi done _tc_once_attr 'map hash divisor baseclass match action' return 0 ;; matchall) _tc_once_attr 'action classid skip_sw skip_hw' return 0 ;; flower) _tc_once_attr 'action classid indev dst_mac src_mac eth_type \ ip_proto dst_ip src_ip dst_port src_port' return 0 ;; fw) _tc_once_attr 'action classid' return 0 ;; route) _tc_one_of_list 'from fromif' _tc_once_attr 'to classid action' return 0 ;; rsvp) _tc_once_attr 'ipproto session sender classid action tunnelid \ tunnel flowlabel spi/ah spi/esp u8 u16 u32' [[ ${words[${#words[@]}-3]} == tunnel ]] && \ COMPREPLY+=( $( compgen -W 'skip' -- "$cur" ) ) [[ ${words[${#words[@]}-3]} =~ u(8|16|32) ]] && \ COMPREPLY+=( $( compgen -W 'mask' -- "$cur" ) ) [[ ${words[${#words[@]}-3]} == mask ]] && \ COMPREPLY+=( $( compgen -W 'at' -- "$cur" ) ) return 0 ;; tcindex) _tc_once_attr 'hash mask shift classid action' _tc_one_of_list 'pass_on fall_through' return 0 ;; u32) _tc_once_attr 'match link classid action offset ht hashkey sample' COMPREPLY+=( $( compgen -W 'ip ip6 udp tcp icmp u8 u16 u32 mark \ divisor' -- "$cur" ) ) return 0 ;; esac return 1 } # Complete with options names for actions. # Returns 0 is completion should stop after running this function, 1 otherwise. _tc_action_options() { local from=$1 local action=${words[from]} case $action in bpf) _tc_bpf_options return 0 ;; mirred) _tc_one_of_list_from $from 'ingress egress' _tc_one_of_list_from $from 'mirror redirect' _tc_once_attr_from $from 'index dev' return 0 ;; sample) _tc_once_attr_from $from 'rate' _tc_once_attr_from $from 'trunc' _tc_once_attr_from $from 'group' return 0 ;; gact) _tc_one_of_list_from $from 'reclassify drop continue pass' _tc_once_attr_from $from 'random' return 0 ;; esac return 1 } # Complete with options names for exec. # Returns 0 is completion should stop after running this function, 1 otherwise. _tc_exec_options() { case $1 in import) [[ ${words[${#words[@]}-3]} == import ]] && \ _tc_once_attr 'run' return 0 ;; graft) COMPREPLY+=( $( compgen -W 'key type' -- "$cur" ) ) [[ ${words[${#words[@]}-3]} == object-file ]] && \ _tc_once_attr 'type' _tc_bpf_options return 0 ;; esac return 1 } # Main completion function # Logic is as follows: # 1. Check if previous word is a global option; if so, propose arguments. # 2. Check if current word is a global option; if so, propose completion. # 3. Check for the presence of a main command (qdisc|class|filter|...). If # there is one, first call _tc_direct_complete to see if previous word is # waiting for a particular completion. If so, propose completion and exit. # 4. Extract main command and -- if available -- its subcommand # (add|delete|show|...). # 5. Propose completion based on main and sub- command in use. Additional # functions may be called for qdiscs, classes or filter options. _tc() { local cur prev words cword _init_completion || return case $prev in -V|-Version) return 0 ;; -b|-batch|-cf|-conf) _filedir return 0 ;; -force) COMPREPLY=( $( compgen -W '-batch' -- "$cur" ) ) return 0 ;; -nm|name) [[ -r /etc/iproute2/tc_cls ]] || \ COMPREPLY=( $( compgen -W '-conf' -- "$cur" ) ) return 0 ;; -n|-net|-netns) local nslist=$( ip netns list 2>/dev/null ) COMPREPLY+=( $( compgen -W "$nslist" -- "$cur" ) ) return 0 ;; -tshort) _tc_once_attr '-statistics' COMPREPLY+=( $( compgen -W 'monitor' -- "$cur" ) ) return 0 ;; -timestamp) _tc_once_attr '-statistics -tshort' COMPREPLY+=( $( compgen -W 'monitor' -- "$cur" ) ) return 0 ;; esac # Search for main commands local subcword cmd subcmd for (( subcword=1; subcword < ${#words[@]}-1; subcword++ )); do [[ ${words[subcword]} == -b?(atch) ]] && return 0 [[ -n $cmd ]] && subcmd=${words[subcword]} && break [[ ${words[subcword]} != -* && \ ${words[subcword-1]} != -@(n?(et?(ns))|c?(on)f) ]] && \ cmd=${words[subcword]} done if [[ -z $cmd ]]; then case $cur in -*) local c='-Version -statistics -details -raw -pretty \ -iec -graphe -batch -name -netns -timestamp' [[ $cword -eq 1 ]] && c+=' -force' COMPREPLY=( $( compgen -W "$c" -- "$cur" ) ) return 0 ;; *) COMPREPLY=( $( compgen -W "help $( tc help 2>&1 | \ command sed \ -e '/OBJECT := /!d' \ -e 's/.*{//' \ -e 's/}.*//' \ -e \ 's/|//g' )" -- "$cur" ) ) return 0 ;; esac fi [[ $subcmd == help ]] && return 0 # For this set of commands we may create COMPREPLY just by analysing the # previous word, if it expects for a specific list of options or values. if [[ $cmd =~ (qdisc|class|filter|action|exec) ]]; then _tc_direct_complete $prev && return 0 if [[ ${words[${#words[@]}-3]} == estimator ]]; then local list=$( _tc_expand_units 'secs' 'msecs' 'usecs' ) COMPREPLY+=( $( compgen -W "$list" -- "$cur" ) ) && return 0 fi fi # Completion depends on main command and subcommand in use. case $cmd in qdisc) case $subcmd in add|change|replace|link|del|delete) if [[ $(($cword-$subcword)) -eq 1 ]]; then COMPREPLY=( $( compgen -W 'dev' -- "$cur" ) ) return 0 fi local qdisc qdwd for ((qdwd=$subcword; qdwd < ${#words[@]}-1; qdwd++)); do if [[ $QDISC_KIND =~ ' '${words[qdwd]}' ' ]]; then qdisc=${words[qdwd]} _tc_qdisc_options $qdisc && return 0 fi done _tc_one_of_list $QDISC_KIND _tc_one_of_list 'root ingress parent clsact' _tc_once_attr 'handle estimator stab' ;; show) _tc_once_attr 'dev' _tc_one_of_list 'ingress clsact' _tc_once_attr '-statistics -details -raw -pretty -iec \ -graph -name' ;; help) return 0 ;; *) [[ $cword -eq $subcword ]] && \ COMPREPLY=( $( compgen -W 'help add delete change \ replace link show' -- "$cur" ) ) ;; esac ;; class) case $subcmd in add|change|replace|del|delete) if [[ $(($cword-$subcword)) -eq 1 ]]; then COMPREPLY=( $( compgen -W 'dev' -- "$cur" ) ) return 0 fi local qdisc qdwd for ((qdwd=$subcword; qdwd < ${#words[@]}-1; qdwd++)); do if [[ $QDISC_KIND =~ ' '${words[qdwd]}' ' ]]; then qdisc=${words[qdwd]} _tc_qdisc_options $qdisc && return 0 fi done _tc_one_of_list $QDISC_KIND _tc_one_of_list 'root parent' _tc_once_attr 'classid' ;; show) _tc_once_attr 'dev' _tc_one_of_list 'root parent' _tc_once_attr '-statistics -details -raw -pretty -iec \ -graph -name' ;; help) return 0 ;; *) [[ $cword -eq $subcword ]] && \ COMPREPLY=( $( compgen -W 'help add delete change \ replace show' -- "$cur" ) ) ;; esac ;; filter) case $subcmd in add|change|replace|del|delete) if [[ $(($cword-$subcword)) -eq 1 ]]; then COMPREPLY=( $( compgen -W 'dev' -- "$cur" ) ) return 0 fi local filter fltwd for ((fltwd=$subcword; fltwd < ${#words[@]}-1; fltwd++)); do if [[ $FILTER_KIND =~ ' '${words[fltwd]}' ' ]]; then _tc_filter_options $fltwd && return 0 fi done _tc_one_of_list $FILTER_KIND _tc_one_of_list 'root ingress egress parent' _tc_once_attr 'handle estimator pref protocol' ;; show) _tc_once_attr 'dev' _tc_one_of_list 'root ingress egress parent' _tc_once_attr '-statistics -details -raw -pretty -iec \ -graph -name' ;; help) return 0 ;; *) [[ $cword -eq $subcword ]] && \ COMPREPLY=( $( compgen -W 'help add delete change \ replace show' -- "$cur" ) ) ;; esac ;; action) case $subcmd in add|change|replace) local action acwd for ((acwd=$subcword; acwd < ${#words[@]}-1; acwd++)); do if [[ $ACTION_KIND =~ ' '${words[acwd]}' ' ]]; then _tc_action_options $acwd && return 0 fi done _tc_one_of_list $ACTION_KIND ;; get|del|delete) _tc_once_attr 'index' ;; lst|list|flush|show) _tc_one_of_list $ACTION_KIND ;; *) [[ $cword -eq $subcword ]] && \ COMPREPLY=( $( compgen -W 'help add delete change \ replace show list flush action' -- "$cur" ) ) ;; esac ;; monitor) COMPREPLY=( $( compgen -W 'help' -- "$cur" ) ) ;; exec) case $subcmd in bpf) local excmd exwd EXEC_KIND=' import debug graft ' for ((exwd=$subcword; exwd < ${#words[@]}-1; exwd++)); do if [[ $EXEC_KIND =~ ' '${words[exwd]}' ' ]]; then excmd=${words[exwd]} _tc_exec_options $excmd && return 0 fi done _tc_one_of_list $EXEC_KIND ;; *) [[ $cword -eq $subcword ]] && \ COMPREPLY=( $( compgen -W 'bpf' -- "$cur" ) ) ;; esac ;; esac } && complete -F _tc tc # ex: ts=4 sw=4 et filetype=sh