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-rwxr-xr-xtools/testing/selftests/net/fcnal-test.sh87
1 files changed, 87 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index ee6880ac3e5e..d32a14ba069a 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -592,6 +592,20 @@ ipv4_ping_novrf()
done
#
+ # out, but don't use gateway if peer is not on link
+ #
+ a=${NSB_IP}
+ log_start
+ run_cmd ping -c 1 -w 1 -r ${a}
+ log_test_addr ${a} $? 0 "ping out (don't route), peer on link"
+
+ a=${NSB_LO_IP}
+ log_start
+ show_hint "Fails since peer is not on link"
+ run_cmd ping -c 1 -w 1 -r ${a}
+ log_test_addr ${a} $? 1 "ping out (don't route), peer not on link"
+
+ #
# in
#
for a in ${NSA_IP} ${NSA_LO_IP}
@@ -1105,6 +1119,59 @@ test_ipv4_md5_vrf__global_server__bind_ifindex0()
set_sysctl net.ipv4.tcp_l3mdev_accept="$old_tcp_l3mdev_accept"
}
+ipv4_tcp_dontroute()
+{
+ local syncookies=$1
+ local nsa_syncookies
+ local nsb_syncookies
+ local a
+
+ #
+ # Link local connection tests (SO_DONTROUTE).
+ # Connections should succeed only when the remote IP address is
+ # on link (doesn't need to be routed through a gateway).
+ #
+
+ nsa_syncookies=$(ip netns exec "${NSA}" sysctl -n net.ipv4.tcp_syncookies)
+ nsb_syncookies=$(ip netns exec "${NSB}" sysctl -n net.ipv4.tcp_syncookies)
+ ip netns exec "${NSA}" sysctl -wq net.ipv4.tcp_syncookies=${syncookies}
+ ip netns exec "${NSB}" sysctl -wq net.ipv4.tcp_syncookies=${syncookies}
+
+ # Test with eth1 address (on link).
+
+ a=${NSB_IP}
+ log_start
+ do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute
+ log_test_addr ${a} $? 0 "SO_DONTROUTE client, syncookies=${syncookies}"
+
+ a=${NSB_IP}
+ log_start
+ do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -r ${a} --server-dontroute
+ log_test_addr ${a} $? 0 "SO_DONTROUTE server, syncookies=${syncookies}"
+
+ # Test with loopback address (routed).
+ #
+ # The client would use the eth1 address as source IP by default.
+ # Therefore, we need to use the -c option here, to force the use of the
+ # routed (loopback) address as source IP (so that the server will try
+ # to respond to a routed address and not a link local one).
+
+ a=${NSB_LO_IP}
+ log_start
+ show_hint "Should fail 'Network is unreachable' since server is not on link"
+ do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -c "${NSA_LO_IP}" -r ${a} --client-dontroute
+ log_test_addr ${a} $? 1 "SO_DONTROUTE client, syncookies=${syncookies}"
+
+ a=${NSB_LO_IP}
+ log_start
+ show_hint "Should timeout since server cannot respond (client is not on link)"
+ do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -c "${NSA_LO_IP}" -r ${a} --server-dontroute
+ log_test_addr ${a} $? 2 "SO_DONTROUTE server, syncookies=${syncookies}"
+
+ ip netns exec "${NSB}" sysctl -wq net.ipv4.tcp_syncookies=${nsb_syncookies}
+ ip netns exec "${NSA}" sysctl -wq net.ipv4.tcp_syncookies=${nsa_syncookies}
+}
+
ipv4_tcp_novrf()
{
local a
@@ -1224,6 +1291,9 @@ ipv4_tcp_novrf()
log_test_addr ${a} $? 1 "No server, device client, local conn"
[ "$fips_enabled" = "1" ] || ipv4_tcp_md5_novrf
+
+ ipv4_tcp_dontroute 0
+ ipv4_tcp_dontroute 2
}
ipv4_tcp_vrf()
@@ -1594,6 +1664,23 @@ ipv4_udp_novrf()
log_start
run_cmd nettest -D -d ${NSA_DEV} -r ${a}
log_test_addr ${a} $? 2 "No server, device client, local conn"
+
+ #
+ # Link local connection tests (SO_DONTROUTE).
+ # Connections should succeed only when the remote IP address is
+ # on link (doesn't need to be routed through a gateway).
+ #
+
+ a=${NSB_IP}
+ log_start
+ do_run_cmd nettest -B -D -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute
+ log_test_addr ${a} $? 0 "SO_DONTROUTE client"
+
+ a=${NSB_LO_IP}
+ log_start
+ show_hint "Should fail 'Network is unreachable' since server is not on link"
+ do_run_cmd nettest -B -D -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute
+ log_test_addr ${a} $? 1 "SO_DONTROUTE client"
}
ipv4_udp_vrf()