diff options
author | Riccardo Paolo Bestetti <pbl@bestov.io> | 2021-11-17 12:00:11 +0300 |
---|---|---|
committer | Jakub Kicinski <kuba@kernel.org> | 2021-11-18 07:21:52 +0300 |
commit | 8ff978b8b222bc9d51dd109a46b51026336c95d8 (patch) | |
tree | a8fa4fb92f7f213f821526d2c61c873b15172de3 /tools/testing/selftests/net/fcnal-test.sh | |
parent | 75082e7f46809432131749f4ecea66864d0f7438 (diff) | |
download | linux-8ff978b8b222bc9d51dd109a46b51026336c95d8.tar.xz |
ipv4/raw: support binding to nonlocal addresses
Add support to inet v4 raw sockets for binding to nonlocal addresses
through the IP_FREEBIND and IP_TRANSPARENT socket options, as well as
the ipv4.ip_nonlocal_bind kernel parameter.
Add helper function to inet_sock.h to check for bind address validity on
the base of the address type and whether nonlocal address are enabled
for the socket via any of the sockopts/sysctl, deduplicating checks in
ipv4/ping.c, ipv4/af_inet.c, ipv6/af_inet6.c (for mapped v4->v6
addresses), and ipv4/raw.c.
Add test cases with IP[V6]_FREEBIND verifying that both v4 and v6 raw
sockets support binding to nonlocal addresses after the change. Add
necessary support for the test cases to nettest.
Signed-off-by: Riccardo Paolo Bestetti <pbl@bestov.io>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211117090010.125393-1-pbl@bestov.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/net/fcnal-test.sh')
-rwxr-xr-x | tools/testing/selftests/net/fcnal-test.sh | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh index 3313566ce906..7caa4f0e067d 100755 --- a/tools/testing/selftests/net/fcnal-test.sh +++ b/tools/testing/selftests/net/fcnal-test.sh @@ -66,6 +66,10 @@ NSB_LO_IP=172.16.2.2 NSA_LO_IP6=2001:db8:2::1 NSB_LO_IP6=2001:db8:2::2 +# non-local addresses for freebind tests +NL_IP=172.17.1.1 +NL_IP6=2001:db8:4::1 + MD5_PW=abc123 MD5_WRONG_PW=abc1234 @@ -316,6 +320,9 @@ addr2str() ${NSB_LO_IP6}) echo "ns-B loopback IPv6";; ${NSB_LINKIP6}|${NSB_LINKIP6}%*) echo "ns-B IPv6 LLA";; + ${NL_IP}) echo "nonlocal IP";; + ${NL_IP6}) echo "nonlocal IPv6";; + ${VRF_IP}) echo "VRF IP";; ${VRF_IP6}) echo "VRF IPv6";; @@ -1768,6 +1775,14 @@ ipv4_addr_bind_novrf() done # + # raw socket with nonlocal bind + # + a=${NL_IP} + log_start + run_cmd nettest -s -R -P icmp -f -l ${a} -I ${NSA_DEV} -b + log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address after device bind" + + # # tcp sockets # a=${NSA_IP} @@ -1816,6 +1831,14 @@ ipv4_addr_bind_vrf() log_test_addr ${a} $? 1 "Raw socket bind to out of scope address after VRF bind" # + # raw socket with nonlocal bind + # + a=${NL_IP} + log_start + run_cmd nettest -s -R -P icmp -f -l ${a} -I ${VRF} -b + log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address after VRF bind" + + # # tcp sockets # for a in ${NSA_IP} ${VRF_IP} @@ -1965,6 +1988,7 @@ ipv4_rt() a=${NSA_IP} log_start + run_cmd nettest ${varg} -s & sleep 1 run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} & @@ -3403,6 +3427,14 @@ ipv6_addr_bind_novrf() done # + # raw socket with nonlocal bind + # + a=${NL_IP6} + log_start + run_cmd nettest -6 -s -R -P icmp -f -l ${a} -I ${NSA_DEV} -b + log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address" + + # # tcp sockets # a=${NSA_IP6} @@ -3444,6 +3476,14 @@ ipv6_addr_bind_vrf() log_test_addr ${a} $? 1 "Raw socket bind to invalid local address after vrf bind" # + # raw socket with nonlocal bind + # + a=${NL_IP6} + log_start + run_cmd nettest -6 -s -R -P icmp -f -l ${a} -I ${VRF} -b + log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address after VRF bind" + + # # tcp sockets # # address on enslaved device is valid for the VRF or device in a VRF |