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selftests: fib_rule_tests: Add DSCP mask match tests

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Add tests for FIB rules that match on DSCP with a mask. Test both good
and bad flows and both the input and output paths.

 # ./fib_rule_tests.sh
 IPv6 FIB rule tests
 [...]
    TEST: rule6 check: dscp redirect to table                           [ OK ]
    TEST: rule6 check: dscp no redirect to table                        [ OK ]
    TEST: rule6 del by pref: dscp redirect to table                     [ OK ]
    TEST: rule6 check: iif dscp redirect to table                       [ OK ]
    TEST: rule6 check: iif dscp no redirect to table                    [ OK ]
    TEST: rule6 del by pref: iif dscp redirect to table                 [ OK ]
    TEST: rule6 check: dscp masked redirect to table                    [ OK ]
    TEST: rule6 check: dscp masked no redirect to table                 [ OK ]
    TEST: rule6 del by pref: dscp masked redirect to table              [ OK ]
    TEST: rule6 check: iif dscp masked redirect to table                [ OK ]
    TEST: rule6 check: iif dscp masked no redirect to table             [ OK ]
    TEST: rule6 del by pref: iif dscp masked redirect to table          [ OK ]
 [...]

 Tests passed: 316
 Tests failed:   0

Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Link: https://patch.msgid.link/20250220080525.831924-7-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ido Schimmel 2025-02-20 10:05:25 +02:00 committed by Jakub Kicinski
parent 0df1328eaf
commit e818d1d1a6
1 changed files with 38 additions and 0 deletions
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38
tools/testing/selftests/net/fib_rule_tests.sh
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@ -310,6 +310,25 @@ fib_rule6_test()
"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 [ $? -eq 0 ]; then
match="flowlabel 0xfffff"
@ -597,6 +616,25 @@ fib_rule4_test()
"$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
}
fib_rule4_vrf_test()