samples/pktgen/functions.sh

2 # Common functions used by pktgen scripts
3 #  - Depending on bash 3 (or higher) syntax
8 set -o errexit
10 ## -- General shell logging cmds --
23     if [[ -n "$VERBOSE" ]]; then
28 ## -- Pktgen proc config commands -- ##
31 # Three different shell functions for configuring the different
35 # These functions correspond to pktgens different components.
67     if [[ ! -e "$proc_ctrl" ]]; then
70 	if [[ ! -w "$proc_ctrl" ]]; then
111 [[ $EUID -eq 0 ]] && trap 'pg_ctrl "reset"' EXIT
113 ## -- General shell tricks --
118     if [ "$EUID" -ne 0 ]; then
119 	if [ -x $0 ]; then # Directly executable use sudo
132     if [[ $node == -1 ]]; then
143 	local queues="${IFACE}-.*TxRx"
145 	irqs=$(grep "$queues" /proc/interrupts | cut -f1 -d:)
146 	[ -z "$irqs" ] && irqs=$(grep $IFACE /proc/interrupts | cut -f1 -d:)
147 	[ -z "$irqs" ] && irqs=$(for i in `ls -Ux /sys/class/net/$IFACE/device/msi_irqs` ;\
148 	    do grep "$i:.*TxRx" /proc/interrupts | grep -v fdir | cut -f 1 -d : ;\
150 	[ -z "$irqs" ] && err 3 "Could not find interrupts for $IFACE"
160 	local node_cpu_range_list=`cut -f1- -d, --output-delimiter=" " \
165 	    node_cpu_list="$node_cpu_list "`seq -s " " ${cpu_range//-/ }`
172 function in_between() { [[ ($1 -ge $2) && ($1 -le $3) ]] ; }
180     local sep_cnt=$(tr -cd $sep <<< $1 | wc -c)
189     shrink=( $(egrep -o "$sep{2,}" <<< $addr) )
190     if [[ ${#shrink[@]} -ne 0 ]]; then
191         if [[ ${#shrink[@]} -gt 1 || ( ${shrink[0]} != $sep2 ) ]]; then
198     [[ ${addr: -1} == $sep ]] && addr=${addr}0
199     echo "${addr/$sep2/$(printf ':0%.s' $(seq $[8-sep_cnt])):}"
206     [[ ${FUNCNAME[1]: -1} == 6 ]] && local IP6=6
209     local max=$[ 2**(len*2)-1 ]
217     if [[ -n $prefix ]]; then
225     IFS=$sep read -a addr <<< $net
232     # check each digit (0 <= $digit <= $max)
235         if ! (in_between $digit 0 $max); then
249     [[ ${FUNCNAME[1]: -1} == 6 ]] && local IP6=6
256     if [[ -z $prefix ]]; then
267         local remain=$[ bitlen-prefix ]
270         local min max
276         IFS=$sep read -ra ip <<< $net
281         # calculate min/max ip with &,| operator
288             max[$i]=$[ 2#$ip_bit | 2#${max_mask:$idx:$octet} ]
290                             max[$i]=$(printf '%X' ${max[$i]}); }
294         max_ip=$(IFS=$sep; echo "${max[*]}")
310     IFS="-" read -ra port_list <<< $port_str
313     max_port=${port_list[1]:-$min_port}
327 	    if [[ $min_port -le $max_port ]]; then
333     err 5 "Invalid port(s): $min_port-$max_port"