1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4############################################################################## 5# Defines 6 7: "${WAIT_TIMEOUT:=20}" 8 9BUSYWAIT_TIMEOUT=$((WAIT_TIMEOUT * 1000)) # ms 10 11# Kselftest framework constants. 12ksft_pass=0 13ksft_fail=1 14ksft_xfail=2 15ksft_skip=4 16 17# namespace list created by setup_ns 18NS_LIST=() 19 20############################################################################## 21# Helpers 22 23__ksft_status_merge() 24{ 25 local a=$1; shift 26 local b=$1; shift 27 local -A weights 28 local weight=0 29 30 local i 31 for i in "$@"; do 32 weights[$i]=$((weight++)) 33 done 34 35 if [[ ${weights[$a]} > ${weights[$b]} ]]; then 36 echo "$a" 37 return 0 38 else 39 echo "$b" 40 return 1 41 fi 42} 43 44ksft_status_merge() 45{ 46 local a=$1; shift 47 local b=$1; shift 48 49 __ksft_status_merge "$a" "$b" \ 50 $ksft_pass $ksft_xfail $ksft_skip $ksft_fail 51} 52 53ksft_exit_status_merge() 54{ 55 local a=$1; shift 56 local b=$1; shift 57 58 __ksft_status_merge "$a" "$b" \ 59 $ksft_xfail $ksft_pass $ksft_skip $ksft_fail 60} 61 62loopy_wait() 63{ 64 local sleep_cmd=$1; shift 65 local timeout_ms=$1; shift 66 67 local start_time="$(date -u +%s%3N)" 68 while true 69 do 70 local out 71 if out=$("$@"); then 72 echo -n "$out" 73 return 0 74 fi 75 76 local current_time="$(date -u +%s%3N)" 77 if ((current_time - start_time > timeout_ms)); then 78 echo -n "$out" 79 return 1 80 fi 81 82 $sleep_cmd 83 done 84} 85 86busywait() 87{ 88 local timeout_ms=$1; shift 89 90 loopy_wait : "$timeout_ms" "$@" 91} 92 93# timeout in seconds 94slowwait() 95{ 96 local timeout_sec=$1; shift 97 98 loopy_wait "sleep 0.1" "$((timeout_sec * 1000))" "$@" 99} 100 101until_counter_is() 102{ 103 local expr=$1; shift 104 local current=$("$@") 105 106 echo $((current)) 107 ((current $expr)) 108} 109 110busywait_for_counter() 111{ 112 local timeout=$1; shift 113 local delta=$1; shift 114 115 local base=$("$@") 116 busywait "$timeout" until_counter_is ">= $((base + delta))" "$@" 117} 118 119slowwait_for_counter() 120{ 121 local timeout=$1; shift 122 local delta=$1; shift 123 124 local base=$("$@") 125 slowwait "$timeout" until_counter_is ">= $((base + delta))" "$@" 126} 127 128cleanup_ns() 129{ 130 local ns="" 131 local errexit=0 132 local ret=0 133 134 # disable errexit temporary 135 if [[ $- =~ "e" ]]; then 136 errexit=1 137 set +e 138 fi 139 140 for ns in "$@"; do 141 [ -z "${ns}" ] && continue 142 ip netns delete "${ns}" &> /dev/null 143 if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then 144 echo "Warn: Failed to remove namespace $ns" 145 ret=1 146 fi 147 done 148 149 [ $errexit -eq 1 ] && set -e 150 return $ret 151} 152 153cleanup_all_ns() 154{ 155 cleanup_ns "${NS_LIST[@]}" 156} 157 158# setup netns with given names as prefix. e.g 159# setup_ns local remote 160setup_ns() 161{ 162 local ns="" 163 local ns_name="" 164 local ns_list=() 165 local ns_exist= 166 for ns_name in "$@"; do 167 # Some test may setup/remove same netns multi times 168 if unset ${ns_name} 2> /dev/null; then 169 ns="${ns_name,,}-$(mktemp -u XXXXXX)" 170 eval readonly ${ns_name}="$ns" 171 ns_exist=false 172 else 173 eval ns='$'${ns_name} 174 cleanup_ns "$ns" 175 ns_exist=true 176 fi 177 178 if ! ip netns add "$ns"; then 179 echo "Failed to create namespace $ns_name" 180 cleanup_ns "${ns_list[@]}" 181 return $ksft_skip 182 fi 183 ip -n "$ns" link set lo up 184 ! $ns_exist && ns_list+=("$ns") 185 done 186 NS_LIST+=("${ns_list[@]}") 187} 188 189tc_rule_stats_get() 190{ 191 local dev=$1; shift 192 local pref=$1; shift 193 local dir=$1; shift 194 local selector=${1:-.packets}; shift 195 196 tc -j -s filter show dev $dev ${dir:-ingress} pref $pref \ 197 | jq ".[1].options.actions[].stats$selector" 198} 199 200tc_rule_handle_stats_get() 201{ 202 local id=$1; shift 203 local handle=$1; shift 204 local selector=${1:-.packets}; shift 205 local netns=${1:-""}; shift 206 207 tc $netns -j -s filter show $id \ 208 | jq ".[] | select(.options.handle == $handle) | \ 209 .options.actions[0].stats$selector" 210} 211