From: David Ahern dsahern@kernel.org
[ Upstream commit 28a2686c185e84b6aa6a4d9c9a972360eb7ca266 ]
IPv6 allows binding a socket to a device then binding to an address not on the device (__inet6_bind -> ipv6_chk_addr with strict flag not set). Update the bind tests to reflect legacy behavior.
Fixes: 34d0302ab861 ("selftests: Add ipv6 address bind tests to fcnal-test") Reported-by: Li Zhijian lizhijian@fujitsu.com Signed-off-by: David Ahern dsahern@kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/net/fcnal-test.sh | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh index c8f28e847ee9e..157822331954d 100755 --- a/tools/testing/selftests/net/fcnal-test.sh +++ b/tools/testing/selftests/net/fcnal-test.sh @@ -2891,11 +2891,14 @@ ipv6_addr_bind_novrf() run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
+ # Sadly, the kernel allows binding a socket to a device and then + # binding to an address not on the device. So this test passes + # when it really should not a=${NSA_LO_IP6} log_start - show_hint "Should fail with 'Cannot assign requested address'" - run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b - log_test_addr ${a} $? 1 "TCP socket bind to out of scope local address" + show_hint "Tecnically should fail since address is not on device but kernel allows" + run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b + log_test_addr ${a} $? 0 "TCP socket bind to out of scope local address" }
ipv6_addr_bind_vrf() @@ -2936,10 +2939,15 @@ ipv6_addr_bind_vrf() run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b log_test_addr ${a} $? 0 "TCP socket bind to local address with device bind"
+ # Sadly, the kernel allows binding a socket to a device and then + # binding to an address not on the device. The only restriction + # is that the address is valid in the L3 domain. So this test + # passes when it really should not a=${VRF_IP6} log_start - run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b - log_test_addr ${a} $? 1 "TCP socket bind to VRF address with device bind" + show_hint "Tecnically should fail since address is not on device but kernel allows" + run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b + log_test_addr ${a} $? 0 "TCP socket bind to VRF address with device bind"
a=${NSA_LO_IP6} log_start