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selftests/net: convert unicast_extensions.sh to run it in unique namespace

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Here is the test result after conversion.

 # ./unicast_extensions.sh
 /usr/bin/which: no nettest in (/root/.local/bin:/root/bin:/usr/share/Modules/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)
 ###########################################################################
 Unicast address extensions tests (behavior of reserved IPv4 addresses)
 ###########################################################################
 TEST: assign and ping within 240/4 (1 of 2) (is allowed)            [ OK ]
 TEST: assign and ping within 240/4 (2 of 2) (is allowed)            [ OK ]
 TEST: assign and ping within 0/8 (1 of 2) (is allowed)              [ OK ]

 ...

 TEST: assign and ping class D address (is forbidden)                [ OK ]
 TEST: routing using class D (is forbidden)                          [ OK ]
 TEST: routing using 127/8 (is forbidden)                            [ OK ]

Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Hangbin Liu 2023-12-02 10:01:10 +08:00 • committed by Paolo Abeni
parent 90e271f65e
commit 0f4765d0b4
1 changed files with 42 additions and 49 deletions
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91
tools/testing/selftests/net/unicast_extensions.sh
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@ -28,8 +28,7 @@
# These tests provide an easy way to flip the expected result of any # These tests provide an easy way to flip the expected result of any
# of these behaviors for testing kernel patches that change them. # of these behaviors for testing kernel patches that change them.
# Kselftest framework requirement - SKIP code is 4. source ./lib.sh
ksft_skip=4
# nettest can be run from PATH or from same directory as this selftest # nettest can be run from PATH or from same directory as this selftest
if ! which nettest >/dev/null; then if ! which nettest >/dev/null; then
@ -61,20 +60,20 @@ _do_segmenttest(){
# foo --- bar # foo --- bar
# Arguments: ip_a ip_b prefix_length test_description # Arguments: ip_a ip_b prefix_length test_description
# #
# Caller must set up foo-ns and bar-ns namespaces # Caller must set up $foo_ns and $bar_ns namespaces
# containing linked veth devices foo and bar, # containing linked veth devices foo and bar,
# respectively. # respectively.
ip -n foo-ns address add $1/$3 dev foo || return 1 ip -n $foo_ns address add $1/$3 dev foo || return 1
ip -n foo-ns link set foo up || return 1 ip -n $foo_ns link set foo up || return 1
ip -n bar-ns address add $2/$3 dev bar || return 1 ip -n $bar_ns address add $2/$3 dev bar || return 1
ip -n bar-ns link set bar up || return 1 ip -n $bar_ns link set bar up || return 1
ip netns exec foo-ns timeout 2 ping -c 1 $2 || return 1 ip netns exec $foo_ns timeout 2 ping -c 1 $2 || return 1
ip netns exec bar-ns timeout 2 ping -c 1 $1 || return 1 ip netns exec $bar_ns timeout 2 ping -c 1 $1 || return 1
nettest -B -N bar-ns -O foo-ns -r $1 || return 1 nettest -B -N $bar_ns -O $foo_ns -r $1 || return 1
nettest -B -N foo-ns -O bar-ns -r $2 || return 1 nettest -B -N $foo_ns -O $bar_ns -r $2 || return 1
return 0 return 0
} }
@ -88,31 +87,31 @@ _do_route_test(){
# Arguments: foo_ip foo1_ip bar1_ip bar_ip prefix_len test_description # Arguments: foo_ip foo1_ip bar1_ip bar_ip prefix_len test_description
# Displays test result and returns success or failure. # Displays test result and returns success or failure.
# Caller must set up foo-ns, bar-ns, and router-ns # Caller must set up $foo_ns, $bar_ns, and $router_ns
# containing linked veth devices foo-foo1, bar1-bar # containing linked veth devices foo-foo1, bar1-bar
# (foo in foo-ns, foo1 and bar1 in router-ns, and # (foo in $foo_ns, foo1 and bar1 in $router_ns, and
# bar in bar-ns). # bar in $bar_ns).
ip -n foo-ns address add $1/$5 dev foo || return 1 ip -n $foo_ns address add $1/$5 dev foo || return 1
ip -n foo-ns link set foo up || return 1 ip -n $foo_ns link set foo up || return 1
ip -n foo-ns route add default via $2 || return 1 ip -n $foo_ns route add default via $2 || return 1
ip -n bar-ns address add $4/$5 dev bar || return 1 ip -n $bar_ns address add $4/$5 dev bar || return 1
ip -n bar-ns link set bar up || return 1 ip -n $bar_ns link set bar up || return 1
ip -n bar-ns route add default via $3 || return 1 ip -n $bar_ns route add default via $3 || return 1
ip -n router-ns address add $2/$5 dev foo1 || return 1 ip -n $router_ns address add $2/$5 dev foo1 || return 1
ip -n router-ns link set foo1 up || return 1 ip -n $router_ns link set foo1 up || return 1
ip -n router-ns address add $3/$5 dev bar1 || return 1 ip -n $router_ns address add $3/$5 dev bar1 || return 1
ip -n router-ns link set bar1 up || return 1 ip -n $router_ns link set bar1 up || return 1
echo 1 | ip netns exec router-ns tee /proc/sys/net/ipv4/ip_forward echo 1 | ip netns exec $router_ns tee /proc/sys/net/ipv4/ip_forward
ip netns exec foo-ns timeout 2 ping -c 1 $2 || return 1 ip netns exec $foo_ns timeout 2 ping -c 1 $2 || return 1
ip netns exec foo-ns timeout 2 ping -c 1 $4 || return 1 ip netns exec $foo_ns timeout 2 ping -c 1 $4 || return 1
ip netns exec bar-ns timeout 2 ping -c 1 $3 || return 1 ip netns exec $bar_ns timeout 2 ping -c 1 $3 || return 1
ip netns exec bar-ns timeout 2 ping -c 1 $1 || return 1 ip netns exec $bar_ns timeout 2 ping -c 1 $1 || return 1
nettest -B -N bar-ns -O foo-ns -r $1 || return 1 nettest -B -N $bar_ns -O $foo_ns -r $1 || return 1
nettest -B -N foo-ns -O bar-ns -r $4 || return 1 nettest -B -N $foo_ns -O $bar_ns -r $4 || return 1
return 0 return 0
} }
@ -121,17 +120,15 @@ segmenttest(){
# Sets up veth link and tries to connect over it. # Sets up veth link and tries to connect over it.
# Arguments: ip_a ip_b prefix_len test_description # Arguments: ip_a ip_b prefix_len test_description
hide_output hide_output
ip netns add foo-ns setup_ns foo_ns bar_ns
ip netns add bar-ns ip link add foo netns $foo_ns type veth peer name bar netns $bar_ns
ip link add foo netns foo-ns type veth peer name bar netns bar-ns
test_result=0 test_result=0
_do_segmenttest "$@" || test_result=1 _do_segmenttest "$@" || test_result=1
ip netns pids foo-ns | xargs -r kill -9 ip netns pids $foo_ns | xargs -r kill -9
ip netns pids bar-ns | xargs -r kill -9 ip netns pids $bar_ns | xargs -r kill -9
ip netns del foo-ns cleanup_ns $foo_ns $bar_ns
ip netns del bar-ns
show_output show_output
# inverted tests will expect failure instead of success # inverted tests will expect failure instead of success
@ -147,21 +144,17 @@ route_test(){
# Returns success or failure. # Returns success or failure.
hide_output hide_output
ip netns add foo-ns setup_ns foo_ns bar_ns router_ns
ip netns add bar-ns ip link add foo netns $foo_ns type veth peer name foo1 netns $router_ns
ip netns add router-ns ip link add bar netns $bar_ns type veth peer name bar1 netns $router_ns
ip link add foo netns foo-ns type veth peer name foo1 netns router-ns
ip link add bar netns bar-ns type veth peer name bar1 netns router-ns
test_result=0 test_result=0
_do_route_test "$@" || test_result=1 _do_route_test "$@" || test_result=1
ip netns pids foo-ns | xargs -r kill -9 ip netns pids $foo_ns | xargs -r kill -9
ip netns pids bar-ns | xargs -r kill -9 ip netns pids $bar_ns | xargs -r kill -9
ip netns pids router-ns | xargs -r kill -9 ip netns pids $router_ns | xargs -r kill -9
ip netns del foo-ns cleanup_ns $foo_ns $bar_ns $router_ns
ip netns del bar-ns
ip netns del router-ns
show_output show_output