tools/testing/selftests/net/fib_rule_tests.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # This test is for checking IPv4 and IPv6 FIB rules API
   5
   6 ret=0
   7
   8 PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
   9 IP="ip -netns testns"
  10
  11 RTABLE=100
  12 GW_IP4=192.51.100.2
  13 SRC_IP=192.51.100.3
  14 GW_IP6=2001:db8:1::2
  15 SRC_IP6=2001:db8:1::3
  16
  17 DEV_ADDR=192.51.100.1
  18 DEV=dummy0
  19
  20 log_test()
  21 {
  22         local rc=$1
  23         local expected=$2
  24         local msg="$3"
  25
  26         if [ ${rc} -eq ${expected} ]; then
  27                 nsuccess=$((nsuccess+1))
  28                 printf "\n    TEST: %-50s  [ OK ]\n" "${msg}"
  29         else
  30                 nfail=$((nfail+1))
  31                 printf "\n    TEST: %-50s  [FAIL]\n" "${msg}"
  32                 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
  33                         echo
  34                         echo "hit enter to continue, 'q' to quit"
  35                         read a
  36                         [ "$a" = "q" ] && exit 1
  37                 fi
  38         fi
  39 }
  40
  41 log_section()
  42 {
  43         echo
  44         echo "######################################################################"
  45         echo "TEST SECTION: $*"
  46         echo "######################################################################"
  47 }
  48
  49 setup()
  50 {
  51         set -e
  52         ip netns add testns
  53         $IP link set dev lo up
  54
  55         $IP link add dummy0 type dummy
  56         $IP link set dev dummy0 up
  57         $IP address add 198.51.100.1/24 dev dummy0
  58         $IP -6 address add 2001:db8:1::1/64 dev dummy0
  59
  60         set +e
  61 }
  62
  63 cleanup()
  64 {
  65         $IP link del dev dummy0 &> /dev/null
  66         ip netns del testns
  67 }
  68
  69 fib_check_iproute_support()
  70 {
  71         ip rule help 2>&1 | grep -q $1
  72         if [ $? -ne 0 ]; then
  73                 echo "SKIP: iproute2 iprule too old, missing $1 match"
  74                 return 1
  75         fi
  76
  77         ip route get help 2>&1 | grep -q $2
  78         if [ $? -ne 0 ]; then
  79                 echo "SKIP: iproute2 get route too old, missing $2 match"
  80                 return 1
  81         fi
  82
  83         return 0
  84 }
  85
  86 fib_rule6_del()
  87 {
  88         $IP -6 rule del $1
  89         log_test $? 0 "rule6 del $1"
  90 }
  91
  92 fib_rule6_del_by_pref()
  93 {
  94         pref=$($IP -6 rule show | grep "$1 lookup $TABLE" | cut -d ":" -f 1)
  95         $IP -6 rule del pref $pref
  96 }
  97
  98 fib_rule6_test_match_n_redirect()
  99 {
 100         local match="$1"
 101         local getmatch="$2"
 102
 103         $IP -6 rule add $match table $RTABLE
 104         $IP -6 route get $GW_IP6 $getmatch | grep -q "table $RTABLE"
 105         log_test $? 0 "rule6 check: $1"
 106
 107         fib_rule6_del_by_pref "$match"
 108         log_test $? 0 "rule6 del by pref: $match"
 109 }
 110
 111 fib_rule6_test()
 112 {
 113         # setup the fib rule redirect route
 114         $IP -6 route add table $RTABLE default via $GW_IP6 dev $DEV onlink
 115
 116         match="oif $DEV"
 117         fib_rule6_test_match_n_redirect "$match" "$match" "oif redirect to table"
 118
 119         match="from $SRC_IP6 iif $DEV"
 120         fib_rule6_test_match_n_redirect "$match" "$match" "iif redirect to table"
 121
 122         match="tos 0x10"
 123         fib_rule6_test_match_n_redirect "$match" "$match" "tos redirect to table"
 124
 125         match="fwmark 0x64"
 126         getmatch="mark 0x64"
 127         fib_rule6_test_match_n_redirect "$match" "$getmatch" "fwmark redirect to table"
 128
 129         fib_check_iproute_support "uidrange" "uid"
 130         if [ $? -eq 0 ]; then
 131                 match="uidrange 100-100"
 132                 getmatch="uid 100"
 133                 fib_rule6_test_match_n_redirect "$match" "$getmatch" "uid redirect to table"
 134         fi
 135
 136         fib_check_iproute_support "sport" "sport"
 137         if [ $? -eq 0 ]; then
 138                 match="sport 666 dport 777"
 139                 fib_rule6_test_match_n_redirect "$match" "$match" "sport and dport redirect to table"
 140         fi
 141
 142         fib_check_iproute_support "ipproto" "ipproto"
 143         if [ $? -eq 0 ]; then
 144                 match="ipproto tcp"
 145                 fib_rule6_test_match_n_redirect "$match" "$match" "ipproto match"
 146         fi
 147
 148         fib_check_iproute_support "ipproto" "ipproto"
 149         if [ $? -eq 0 ]; then
 150                 match="ipproto icmp"
 151                 fib_rule6_test_match_n_redirect "$match" "$match" "ipproto icmp match"
 152         fi
 153 }
 154
 155 fib_rule4_del()
 156 {
 157         $IP rule del $1
 158         log_test $? 0 "del $1"
 159 }
 160
 161 fib_rule4_del_by_pref()
 162 {
 163         pref=$($IP rule show | grep "$1 lookup $TABLE" | cut -d ":" -f 1)
 164         $IP rule del pref $pref
 165 }
 166
 167 fib_rule4_test_match_n_redirect()
 168 {
 169         local match="$1"
 170         local getmatch="$2"
 171
 172         $IP rule add $match table $RTABLE
 173         $IP route get $GW_IP4 $getmatch | grep -q "table $RTABLE"
 174         log_test $? 0 "rule4 check: $1"
 175
 176         fib_rule4_del_by_pref "$match"
 177         log_test $? 0 "rule4 del by pref: $match"
 178 }
 179
 180 fib_rule4_test()
 181 {
 182         # setup the fib rule redirect route
 183         $IP route add table $RTABLE default via $GW_IP4 dev $DEV onlink
 184
 185         match="oif $DEV"
 186         fib_rule4_test_match_n_redirect "$match" "$match" "oif redirect to table"
 187
 188         match="from $SRC_IP iif $DEV"
 189         fib_rule4_test_match_n_redirect "$match" "$match" "iif redirect to table"
 190
 191         match="tos 0x10"
 192         fib_rule4_test_match_n_redirect "$match" "$match" "tos redirect to table"
 193
 194         match="fwmark 0x64"
 195         getmatch="mark 0x64"
 196         fib_rule4_test_match_n_redirect "$match" "$getmatch" "fwmark redirect to table"
 197
 198         fib_check_iproute_support "uidrange" "uid"
 199         if [ $? -eq 0 ]; then
 200                 match="uidrange 100-100"
 201                 getmatch="uid 100"
 202                 fib_rule4_test_match_n_redirect "$match" "$getmatch" "uid redirect to table"
 203         fi
 204
 205         fib_check_iproute_support "sport" "sport"
 206         if [ $? -eq 0 ]; then
 207                 match="sport 666 dport 777"
 208                 fib_rule4_test_match_n_redirect "$match" "$match" "sport and dport redirect to table"
 209         fi
 210
 211         fib_check_iproute_support "ipproto" "ipproto"
 212         if [ $? -eq 0 ]; then
 213                 match="ipproto tcp"
 214                 fib_rule4_test_match_n_redirect "$match" "$match" "ipproto tcp match"
 215         fi
 216
 217         fib_check_iproute_support "ipproto" "ipproto"
 218         if [ $? -eq 0 ]; then
 219                 match="ipproto icmp"
 220                 fib_rule4_test_match_n_redirect "$match" "$match" "ipproto icmp match"
 221         fi
 222 }
 223
 224 run_fibrule_tests()
 225 {
 226         log_section "IPv4 fib rule"
 227         fib_rule4_test
 228         log_section "IPv6 fib rule"
 229         fib_rule6_test
 230 }
 231
 232 if [ "$(id -u)" -ne 0 ];then
 233         echo "SKIP: Need root privileges"
 234         exit 0
 235 fi
 236
 237 if [ ! -x "$(command -v ip)" ]; then
 238         echo "SKIP: Could not run test without ip tool"
 239         exit 0
 240 fi
 241
 242 # start clean
 243 cleanup &> /dev/null
 244 setup
 245 run_fibrule_tests
 246 cleanup
 247
 248 exit $ret