%PDF-
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Mini Shell
Mini Shell
# tc(8) completion -*- shell-script -*-
# Copyright 2016 6WIND S.A.
# Copyright 2016 Quentin Monnet <quentin.monnet@6wind.com>
QDISC_KIND=' choke codel bfifo pfifo pfifo_head_drop fq fq_codel gred hhf \
mqprio multiq netem pfifo_fast pie fq_pie red rr sfb sfq tbf atm \
cbq drr dsmark hfsc htb prio qfq '
FILTER_KIND=' basic bpf cgroup flow flower fw route rsvp tcindex u32 matchall '
ACTION_KIND=' gact mirred bpf sample '
# 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.
_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+=( $( compgen -W ' 802.1Q 802.1ad 802_2 802_3 LLDP aarp \
all aoe arp atalk atmfate atmmpoa ax25 bpq can control cust \
ddcmp dec diag dna_dl dna_rc dna_rt econet ethercat ieeepup \
ieeepupat ip ipv4 ipv6 ipx irda lat localtalk loop mobitex \
ppp_disc ppp_mp ppp_ses ppptalk profinet pup pupat rarp sca \
snap tipc tr_802_2 wan_ppp x25' -- "$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 ecn harddrop'
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'
_tc_one_of_list 'dq_rate_estimator no_dq_rate_estimator'
return 0
;;
fq_pie)
_tc_once_attr 'limit flows target tupdate \
alpha beta quantum memory_limit ecn_prob'
_tc_one_of_list 'ecn noecn'
_tc_one_of_list 'bytemode nobytemode'
_tc_one_of_list 'dq_rate_estimator no_dq_rate_estimator'
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
Zerion Mini Shell 1.0