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-rwxr-xr-xtools/testing/selftests/net/fib_rule_tests.sh804
1 files changed, 804 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh
new file mode 100755
index 000000000000..5fbdd2a0b537
--- /dev/null
+++ b/tools/testing/selftests/net/fib_rule_tests.sh
@@ -0,0 +1,804 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking IPv4 and IPv6 FIB rules API
+
+source lib.sh
+ret=0
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+RTABLE=100
+RTABLE_PEER=101
+RTABLE_VRF=102
+GW_IP4=192.51.100.2
+SRC_IP=192.51.100.3
+GW_IP6=2001:db8:1::2
+SRC_IP6=2001:db8:1::3
+
+DEV_ADDR=192.51.100.1
+DEV_ADDR6=2001:db8:1::1
+DEV=dummy0
+TESTS="
+ fib_rule6
+ fib_rule4
+ fib_rule6_connect
+ fib_rule4_connect
+ fib_rule6_vrf
+ fib_rule4_vrf
+"
+
+SELFTEST_PATH=""
+
+log_test()
+{
+ local rc=$1
+ local expected=$2
+ local msg="$3"
+
+ if [ ${rc} -eq ${expected} ]; then
+ nsuccess=$((nsuccess+1))
+ printf " TEST: %-60s [ OK ]\n" "${msg}"
+ else
+ ret=1
+ nfail=$((nfail+1))
+ printf " TEST: %-60s [FAIL]\n" "${msg}"
+ if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+ echo
+ echo "hit enter to continue, 'q' to quit"
+ read a
+ [ "$a" = "q" ] && exit 1
+ fi
+ fi
+}
+
+setup()
+{
+ set -e
+ setup_ns testns
+ IP="ip -netns $testns"
+
+ $IP link add dummy0 type dummy
+ $IP link set dev dummy0 up
+ $IP address add $DEV_ADDR/24 dev dummy0
+ $IP -6 address add $DEV_ADDR6/64 dev dummy0
+
+ set +e
+}
+
+cleanup()
+{
+ $IP link del dev dummy0 &> /dev/null
+ cleanup_ns $testns
+}
+
+setup_peer()
+{
+ set -e
+
+ setup_ns peerns
+ IP_PEER="ip -netns $peerns"
+ $IP_PEER link set dev lo up
+
+ ip link add name veth0 netns $testns type veth \
+ peer name veth1 netns $peerns
+ $IP link set dev veth0 up
+ $IP_PEER link set dev veth1 up
+
+ $IP address add 192.0.2.10 peer 192.0.2.11/32 dev veth0
+ $IP_PEER address add 192.0.2.11 peer 192.0.2.10/32 dev veth1
+
+ $IP address add 2001:db8::10 peer 2001:db8::11/128 dev veth0 nodad
+ $IP_PEER address add 2001:db8::11 peer 2001:db8::10/128 dev veth1 nodad
+
+ $IP_PEER address add 198.51.100.11/32 dev lo
+ $IP route add table $RTABLE_PEER 198.51.100.11/32 via 192.0.2.11
+
+ $IP_PEER address add 2001:db8::1:11/128 dev lo
+ $IP route add table $RTABLE_PEER 2001:db8::1:11/128 via 2001:db8::11
+
+ set +e
+}
+
+cleanup_peer()
+{
+ $IP link del dev veth0
+ ip netns del $peerns
+}
+
+setup_vrf()
+{
+ $IP link add name vrf0 up type vrf table $RTABLE_VRF
+ $IP link set dev $DEV master vrf0
+}
+
+cleanup_vrf()
+{
+ $IP link del dev vrf0
+}
+
+fib_check_iproute_support()
+{
+ ip rule help 2>&1 | grep -q $1
+ if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 iprule too old, missing $1 match"
+ return 1
+ fi
+
+ ip route get help 2>&1 | grep -q $2
+ if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 get route too old, missing $2 match"
+ return 1
+ fi
+
+ return 0
+}
+
+fib_rule6_del()
+{
+ $IP -6 rule del $1
+ log_test $? 0 "rule6 del $1"
+}
+
+fib_rule6_del_by_pref()
+{
+ pref=$($IP -6 rule show $1 table $RTABLE | cut -d ":" -f 1)
+ $IP -6 rule del pref $pref
+}
+
+fib_rule6_test_match_n_redirect()
+{
+ local match="$1"
+ local getmatch="$2"
+ local getnomatch="$3"
+ local description="$4"
+ local nomatch_description="$5"
+
+ $IP -6 rule add $match table $RTABLE
+ $IP -6 route get $GW_IP6 $getmatch | grep -q "table $RTABLE"
+ log_test $? 0 "rule6 check: $description"
+
+ $IP -6 route get $GW_IP6 $getnomatch 2>&1 | grep -q "table $RTABLE"
+ log_test $? 1 "rule6 check: $nomatch_description"
+
+ fib_rule6_del_by_pref "$match"
+ log_test $? 0 "rule6 del by pref: $description"
+}
+
+fib_rule6_test_reject()
+{
+ local match="$1"
+ local rc
+
+ $IP -6 rule add $match table $RTABLE 2>/dev/null
+ rc=$?
+ log_test $rc 2 "rule6 check: $match"
+
+ if [ $rc -eq 0 ]; then
+ $IP -6 rule del $match table $RTABLE
+ fi
+}
+
+fib_rule6_test()
+{
+ local ext_name=$1; shift
+ local getnomatch
+ local getmatch
+ local match
+ local cnt
+
+ echo
+ echo "IPv6 FIB rule tests $ext_name"
+
+ # setup the fib rule redirect route
+ $IP -6 route add table $RTABLE default via $GW_IP6 dev $DEV onlink
+
+ match="oif $DEV"
+ getnomatch="oif lo"
+ fib_rule6_test_match_n_redirect "$match" "$match" "$getnomatch" \
+ "oif redirect to table" "oif no redirect to table"
+
+ match="from $SRC_IP6 iif $DEV"
+ getnomatch="from $SRC_IP6 iif lo"
+ fib_rule6_test_match_n_redirect "$match" "$match" "$getnomatch" \
+ "iif redirect to table" "iif no redirect to table"
+
+ # Reject dsfield (tos) options which have ECN bits set
+ for cnt in $(seq 1 3); do
+ match="dsfield $cnt"
+ fib_rule6_test_reject "$match"
+ done
+
+ # Don't take ECN bits into account when matching on dsfield
+ match="tos 0x10"
+ for cnt in "0x10" "0x11" "0x12" "0x13"; do
+ # Using option 'tos' instead of 'dsfield' as old iproute2
+ # versions don't support 'dsfield' in ip rule show.
+ getmatch="tos $cnt"
+ getnomatch="tos 0x20"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "$getmatch redirect to table" \
+ "$getnomatch no redirect to table"
+ done
+
+ # Re-test TOS matching, but with input routes since they are handled
+ # differently from output routes.
+ match="tos 0x10"
+ for cnt in "0x10" "0x11" "0x12" "0x13"; do
+ getmatch="tos $cnt"
+ getnomatch="tos 0x20"
+ fib_rule6_test_match_n_redirect "$match" \
+ "from $SRC_IP6 iif $DEV $getmatch" \
+ "from $SRC_IP6 iif $DEV $getnomatch" \
+ "iif $getmatch redirect to table" \
+ "iif $getnomatch no redirect to table"
+ done
+
+ match="fwmark 0x64"
+ getmatch="mark 0x64"
+ getnomatch="mark 0x63"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" "$getnomatch" \
+ "fwmark redirect to table" "fwmark no redirect to table"
+
+ fib_check_iproute_support "uidrange" "uid"
+ if [ $? -eq 0 ]; then
+ match="uidrange 100-100"
+ getmatch="uid 100"
+ getnomatch="uid 101"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "uid redirect to table" \
+ "uid no redirect to table"
+ fi
+
+ fib_check_iproute_support "sport" "sport"
+ if [ $? -eq 0 ]; then
+ match="sport 666 dport 777"
+ getnomatch="sport 667 dport 778"
+ fib_rule6_test_match_n_redirect "$match" "$match" \
+ "$getnomatch" "sport and dport redirect to table" \
+ "sport and dport no redirect to table"
+
+ match="sport 100-200 dport 300-400"
+ getmatch="sport 100 dport 400"
+ getnomatch="sport 100 dport 401"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" \
+ "sport and dport range redirect to table" \
+ "sport and dport range no redirect to table"
+ fi
+
+ ip rule help 2>&1 | grep sport | grep -q MASK
+ if [ $? -eq 0 ]; then
+ match="sport 0x0f00/0xff00 dport 0x000f/0x00ff"
+ getmatch="sport 0x0f11 dport 0x220f"
+ getnomatch="sport 0x1f11 dport 0x221f"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "sport and dport masked redirect to table" \
+ "sport and dport masked no redirect to table"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto tcp"
+ getnomatch="ipproto udp"
+ fib_rule6_test_match_n_redirect "$match" "$match" \
+ "$getnomatch" "ipproto tcp match" "ipproto udp no match"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto ipv6-icmp"
+ getnomatch="ipproto tcp"
+ fib_rule6_test_match_n_redirect "$match" "$match" \
+ "$getnomatch" "ipproto ipv6-icmp match" \
+ "ipproto ipv6-tcp no match"
+ fi
+
+ fib_check_iproute_support "dscp" "tos"
+ if [ $? -eq 0 ]; then
+ match="dscp 0x3f"
+ getmatch="tos 0xfc"
+ getnomatch="tos 0xf4"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "dscp redirect to table" \
+ "dscp no redirect to table"
+
+ match="dscp 0x3f"
+ getmatch="from $SRC_IP6 iif $DEV tos 0xfc"
+ getnomatch="from $SRC_IP6 iif $DEV tos 0xf4"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "iif dscp redirect to table" \
+ "iif dscp no redirect to table"
+ fi
+
+ ip rule help 2>&1 | grep -q "DSCP\[/MASK\]"
+ if [ $? -eq 0 ]; then
+ match="dscp 0x0f/0x0f"
+ tosmatch=$(printf 0x"%x" $((0x1f << 2)))
+ tosnomatch=$(printf 0x"%x" $((0x1e << 2)))
+ getmatch="tos $tosmatch"
+ getnomatch="tos $tosnomatch"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "dscp masked redirect to table" \
+ "dscp masked no redirect to table"
+
+ match="dscp 0x0f/0x0f"
+ getmatch="from $SRC_IP6 iif $DEV tos $tosmatch"
+ getnomatch="from $SRC_IP6 iif $DEV tos $tosnomatch"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "iif dscp masked redirect to table" \
+ "iif dscp masked no redirect to table"
+ fi
+
+ fib_check_iproute_support "flowlabel" "flowlabel"
+ if [ $? -eq 0 ]; then
+ match="flowlabel 0xfffff"
+ getmatch="flowlabel 0xfffff"
+ getnomatch="flowlabel 0xf"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "flowlabel redirect to table" \
+ "flowlabel no redirect to table"
+
+ match="flowlabel 0xfffff"
+ getmatch="from $SRC_IP6 iif $DEV flowlabel 0xfffff"
+ getnomatch="from $SRC_IP6 iif $DEV flowlabel 0xf"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "iif flowlabel redirect to table" \
+ "iif flowlabel no redirect to table"
+
+ match="flowlabel 0x08000/0x08000"
+ getmatch="flowlabel 0xfffff"
+ getnomatch="flowlabel 0xf7fff"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "flowlabel masked redirect to table" \
+ "flowlabel masked no redirect to table"
+
+ match="flowlabel 0x08000/0x08000"
+ getmatch="from $SRC_IP6 iif $DEV flowlabel 0xfffff"
+ getnomatch="from $SRC_IP6 iif $DEV flowlabel 0xf7fff"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "iif flowlabel masked redirect to table" \
+ "iif flowlabel masked no redirect to table"
+ fi
+
+ $IP link show dev $DEV | grep -q vrf0
+ if [ $? -eq 0 ]; then
+ match="oif vrf0"
+ getmatch="oif $DEV"
+ getnomatch="oif lo"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "VRF oif redirect to table" \
+ "VRF oif no redirect to table"
+
+ match="from $SRC_IP6 iif vrf0"
+ getmatch="from $SRC_IP6 iif $DEV"
+ getnomatch="from $SRC_IP6 iif lo"
+ fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "VRF iif redirect to table" \
+ "VRF iif no redirect to table"
+ fi
+}
+
+fib_rule6_vrf_test()
+{
+ setup_vrf
+ fib_rule6_test "- with VRF"
+ cleanup_vrf
+}
+
+# Verify that the IPV6_TCLASS option of UDPv6 and TCPv6 sockets is properly
+# taken into account when connecting the socket and when sending packets.
+fib_rule6_connect_test()
+{
+ local dsfield
+
+ echo
+ echo "IPv6 FIB rule connect tests"
+
+ setup_peer
+ $IP -6 rule add dsfield 0x04 table $RTABLE_PEER
+
+ # Combine the base DS Field value (0x04) with all possible ECN values
+ # (Not-ECT: 0, ECT(1): 1, ECT(0): 2, CE: 3).
+ # The ECN bits shouldn't influence the result of the test.
+ for dsfield in 0x04 0x05 0x06 0x07; do
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D \
+ -Q "${dsfield}" -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 0 "rule6 dsfield udp connect (dsfield ${dsfield})"
+
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -Q "${dsfield}" \
+ -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 0 "rule6 dsfield tcp connect (dsfield ${dsfield})"
+ done
+
+ # Check that UDP and TCP connections fail when using a DS Field that
+ # does not match the previously configured FIB rule.
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D \
+ -Q 0x20 -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 1 "rule6 dsfield udp no connect (dsfield 0x20)"
+
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -Q 0x20 \
+ -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 1 "rule6 dsfield tcp no connect (dsfield 0x20)"
+
+ $IP -6 rule del dsfield 0x04 table $RTABLE_PEER
+
+ ip rule help 2>&1 | grep -q dscp
+ if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 iprule too old, missing dscp match"
+ cleanup_peer
+ return
+ fi
+
+ $IP -6 rule add dscp 0x3f table $RTABLE_PEER
+
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D -Q 0xfc \
+ -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 0 "rule6 dscp udp connect"
+
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -Q 0xfc \
+ -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 0 "rule6 dscp tcp connect"
+
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D -Q 0xf4 \
+ -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 1 "rule6 dscp udp no connect"
+
+ nettest -q -6 -B -t 5 -N $testns -O $peerns -Q 0xf4 \
+ -l 2001:db8::1:11 -r 2001:db8::1:11
+ log_test $? 1 "rule6 dscp tcp no connect"
+
+ $IP -6 rule del dscp 0x3f table $RTABLE_PEER
+
+ cleanup_peer
+}
+
+fib_rule4_del()
+{
+ $IP rule del $1
+ log_test $? 0 "del $1"
+}
+
+fib_rule4_del_by_pref()
+{
+ pref=$($IP rule show $1 table $RTABLE | cut -d ":" -f 1)
+ $IP rule del pref $pref
+}
+
+fib_rule4_test_match_n_redirect()
+{
+ local match="$1"
+ local getmatch="$2"
+ local getnomatch="$3"
+ local description="$4"
+ local nomatch_description="$5"
+
+ $IP rule add $match table $RTABLE
+ $IP route get $GW_IP4 $getmatch | grep -q "table $RTABLE"
+ log_test $? 0 "rule4 check: $description"
+
+ $IP route get $GW_IP4 $getnomatch 2>&1 | grep -q "table $RTABLE"
+ log_test $? 1 "rule4 check: $nomatch_description"
+
+ fib_rule4_del_by_pref "$match"
+ log_test $? 0 "rule4 del by pref: $description"
+}
+
+fib_rule4_test_reject()
+{
+ local match="$1"
+ local rc
+
+ $IP rule add $match table $RTABLE 2>/dev/null
+ rc=$?
+ log_test $rc 2 "rule4 check: $match"
+
+ if [ $rc -eq 0 ]; then
+ $IP rule del $match table $RTABLE
+ fi
+}
+
+fib_rule4_test()
+{
+ local ext_name=$1; shift
+ local getnomatch
+ local getmatch
+ local match
+ local cnt
+
+ echo
+ echo "IPv4 FIB rule tests $ext_name"
+
+ # setup the fib rule redirect route
+ $IP route add table $RTABLE default via $GW_IP4 dev $DEV onlink
+
+ match="oif $DEV"
+ getnomatch="oif lo"
+ fib_rule4_test_match_n_redirect "$match" "$match" "$getnomatch" \
+ "oif redirect to table" "oif no redirect to table"
+
+ ip netns exec $testns sysctl -qw net.ipv4.ip_forward=1
+ match="from $SRC_IP iif $DEV"
+ getnomatch="from $SRC_IP iif lo"
+ fib_rule4_test_match_n_redirect "$match" "$match" "$getnomatch" \
+ "iif redirect to table" "iif no redirect to table"
+
+ # Reject dsfield (tos) options which have ECN bits set
+ for cnt in $(seq 1 3); do
+ match="dsfield $cnt"
+ fib_rule4_test_reject "$match"
+ done
+
+ # Don't take ECN bits into account when matching on dsfield
+ match="tos 0x10"
+ for cnt in "0x10" "0x11" "0x12" "0x13"; do
+ # Using option 'tos' instead of 'dsfield' as old iproute2
+ # versions don't support 'dsfield' in ip rule show.
+ getmatch="tos $cnt"
+ getnomatch="tos 0x20"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "$getmatch redirect to table" \
+ "$getnomatch no redirect to table"
+ done
+
+ # Re-test TOS matching, but with input routes since they are handled
+ # differently from output routes.
+ match="tos 0x10"
+ for cnt in "0x10" "0x11" "0x12" "0x13"; do
+ getmatch="tos $cnt"
+ getnomatch="tos 0x20"
+ fib_rule4_test_match_n_redirect "$match" \
+ "from $SRC_IP iif $DEV $getmatch" \
+ "from $SRC_IP iif $DEV $getnomatch" \
+ "iif $getmatch redirect to table" \
+ "iif $getnomatch no redirect to table"
+ done
+
+ match="fwmark 0x64"
+ getmatch="mark 0x64"
+ getnomatch="mark 0x63"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" "$getnomatch" \
+ "fwmark redirect to table" "fwmark no redirect to table"
+
+ fib_check_iproute_support "uidrange" "uid"
+ if [ $? -eq 0 ]; then
+ match="uidrange 100-100"
+ getmatch="uid 100"
+ getnomatch="uid 101"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "uid redirect to table" \
+ "uid no redirect to table"
+ fi
+
+ fib_check_iproute_support "sport" "sport"
+ if [ $? -eq 0 ]; then
+ match="sport 666 dport 777"
+ getnomatch="sport 667 dport 778"
+ fib_rule4_test_match_n_redirect "$match" "$match" \
+ "$getnomatch" "sport and dport redirect to table" \
+ "sport and dport no redirect to table"
+
+ match="sport 100-200 dport 300-400"
+ getmatch="sport 100 dport 400"
+ getnomatch="sport 100 dport 401"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" \
+ "sport and dport range redirect to table" \
+ "sport and dport range no redirect to table"
+ fi
+
+ ip rule help 2>&1 | grep sport | grep -q MASK
+ if [ $? -eq 0 ]; then
+ match="sport 0x0f00/0xff00 dport 0x000f/0x00ff"
+ getmatch="sport 0x0f11 dport 0x220f"
+ getnomatch="sport 0x1f11 dport 0x221f"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "sport and dport masked redirect to table" \
+ "sport and dport masked no redirect to table"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto tcp"
+ getnomatch="ipproto udp"
+ fib_rule4_test_match_n_redirect "$match" "$match" \
+ "$getnomatch" "ipproto tcp match" \
+ "ipproto udp no match"
+ fi
+
+ fib_check_iproute_support "ipproto" "ipproto"
+ if [ $? -eq 0 ]; then
+ match="ipproto icmp"
+ getnomatch="ipproto tcp"
+ fib_rule4_test_match_n_redirect "$match" "$match" \
+ "$getnomatch" "ipproto icmp match" \
+ "ipproto tcp no match"
+ fi
+
+ fib_check_iproute_support "dscp" "tos"
+ if [ $? -eq 0 ]; then
+ match="dscp 0x3f"
+ getmatch="tos 0xfc"
+ getnomatch="tos 0xf4"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "dscp redirect to table" \
+ "dscp no redirect to table"
+
+ match="dscp 0x3f"
+ getmatch="from $SRC_IP iif $DEV tos 0xfc"
+ getnomatch="from $SRC_IP iif $DEV tos 0xf4"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "iif dscp redirect to table" \
+ "iif dscp no redirect to table"
+ fi
+
+ ip rule help 2>&1 | grep -q "DSCP\[/MASK\]"
+ if [ $? -eq 0 ]; then
+ match="dscp 0x0f/0x0f"
+ tosmatch=$(printf 0x"%x" $((0x1f << 2)))
+ tosnomatch=$(printf 0x"%x" $((0x1e << 2)))
+ getmatch="tos $tosmatch"
+ getnomatch="tos $tosnomatch"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "dscp masked redirect to table" \
+ "dscp masked no redirect to table"
+
+ match="dscp 0x0f/0x0f"
+ getmatch="from $SRC_IP iif $DEV tos $tosmatch"
+ getnomatch="from $SRC_IP iif $DEV tos $tosnomatch"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "iif dscp masked redirect to table" \
+ "iif dscp masked no redirect to table"
+ fi
+
+ $IP link show dev $DEV | grep -q vrf0
+ if [ $? -eq 0 ]; then
+ match="oif vrf0"
+ getmatch="oif $DEV"
+ getnomatch="oif lo"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "VRF oif redirect to table" \
+ "VRF oif no redirect to table"
+
+ match="from $SRC_IP iif vrf0"
+ getmatch="from $SRC_IP iif $DEV"
+ getnomatch="from $SRC_IP iif lo"
+ fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+ "$getnomatch" "VRF iif redirect to table" \
+ "VRF iif no redirect to table"
+ fi
+}
+
+fib_rule4_vrf_test()
+{
+ setup_vrf
+ fib_rule4_test "- with VRF"
+ cleanup_vrf
+}
+
+# Verify that the IP_TOS option of UDPv4 and TCPv4 sockets is properly taken
+# into account when connecting the socket and when sending packets.
+fib_rule4_connect_test()
+{
+ local dsfield
+
+ echo
+ echo "IPv4 FIB rule connect tests"
+
+ setup_peer
+ $IP -4 rule add dsfield 0x04 table $RTABLE_PEER
+
+ # Combine the base DS Field value (0x04) with all possible ECN values
+ # (Not-ECT: 0, ECT(1): 1, ECT(0): 2, CE: 3).
+ # The ECN bits shouldn't influence the result of the test.
+ for dsfield in 0x04 0x05 0x06 0x07; do
+ nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q "${dsfield}" \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 0 "rule4 dsfield udp connect (dsfield ${dsfield})"
+
+ nettest -q -B -t 5 -N $testns -O $peerns -Q "${dsfield}" \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 0 "rule4 dsfield tcp connect (dsfield ${dsfield})"
+ done
+
+ # Check that UDP and TCP connections fail when using a DS Field that
+ # does not match the previously configured FIB rule.
+ nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q 0x20 \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 1 "rule4 dsfield udp no connect (dsfield 0x20)"
+
+ nettest -q -B -t 5 -N $testns -O $peerns -Q 0x20 \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 1 "rule4 dsfield tcp no connect (dsfield 0x20)"
+
+ $IP -4 rule del dsfield 0x04 table $RTABLE_PEER
+
+ ip rule help 2>&1 | grep -q dscp
+ if [ $? -ne 0 ]; then
+ echo "SKIP: iproute2 iprule too old, missing dscp match"
+ cleanup_peer
+ return
+ fi
+
+ $IP -4 rule add dscp 0x3f table $RTABLE_PEER
+
+ nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q 0xfc \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 0 "rule4 dscp udp connect"
+
+ nettest -q -B -t 5 -N $testns -O $peerns -Q 0xfc \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 0 "rule4 dscp tcp connect"
+
+ nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q 0xf4 \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 1 "rule4 dscp udp no connect"
+
+ nettest -q -B -t 5 -N $testns -O $peerns -Q 0xf4 \
+ -l 198.51.100.11 -r 198.51.100.11
+ log_test $? 1 "rule4 dscp tcp no connect"
+
+ $IP -4 rule del dscp 0x3f table $RTABLE_PEER
+
+ cleanup_peer
+}
+################################################################################
+# usage
+
+usage()
+{
+ cat <<EOF
+usage: ${0##*/} OPTS
+
+ -t <test> Test(s) to run (default: all)
+ (options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+ case $opt in
+ t) TESTS=$OPTARG;;
+ h) usage; exit 0;;
+ *) usage; exit 1;;
+ esac
+done
+
+if [ "$(id -u)" -ne 0 ];then
+ echo "SKIP: Need root privileges"
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+
+check_gen_prog "nettest"
+
+# start clean
+cleanup &> /dev/null
+setup
+for t in $TESTS
+do
+ case $t in
+ fib_rule6_test|fib_rule6) fib_rule6_test;;
+ fib_rule4_test|fib_rule4) fib_rule4_test;;
+ fib_rule6_connect_test|fib_rule6_connect) fib_rule6_connect_test;;
+ fib_rule4_connect_test|fib_rule4_connect) fib_rule4_connect_test;;
+ fib_rule6_vrf_test|fib_rule6_vrf) fib_rule6_vrf_test;;
+ fib_rule4_vrf_test|fib_rule4_vrf) fib_rule4_vrf_test;;
+
+ help) echo "Test names: $TESTS"; exit 0;;
+
+ esac
+done
+cleanup
+
+if [ "$TESTS" != "none" ]; then
+ printf "\nTests passed: %3d\n" ${nsuccess}
+ printf "Tests failed: %3d\n" ${nfail}
+fi
+
+exit $ret
generated by cgit (git 2.34.1) at 2025-12-26 01:11:53 +0000