Author: asomers
Date: Wed Mar  1 00:28:04 2017
New Revision: 314442
URL: https://svnweb.freebsd.org/changeset/base/314442

Log:
  Add an ATF test for IPv6 SLAAC with multiple fibs
  
  Tests that an interface can get a SLAAC address and that it inserts its
  routes into the correct fib. Does not test anything to do with NDP.
  
  PR:           196361
  Reviewed by:  Erick Turnquist <jhujh...@adjectivism.org>
  MFC after:    3 weeks
  Sponsored by: Spectra Logic Corp
  Differential Revision:        https://reviews.freebsd.org/D9776

Modified:
  head/tests/sys/netinet/fibs_test.sh

Modified: head/tests/sys/netinet/fibs_test.sh
==============================================================================
--- head/tests/sys/netinet/fibs_test.sh Wed Mar  1 00:17:04 2017        
(r314441)
+++ head/tests/sys/netinet/fibs_test.sh Wed Mar  1 00:28:04 2017        
(r314442)
@@ -443,6 +443,89 @@ same_ip_multiple_ifaces_inet6_cleanup()
        cleanup_ifaces
 }
 
+atf_test_case slaac_on_nondefault_fib6 cleanup
+slaac_on_nondefault_fib6_head()
+{
+       atf_set "descr" "SLAAC correctly installs routes on non-default FIBs"
+       atf_set "require.user" "root"
+       atf_set "require.config" "fibs" "allow_sysctl_side_effects"
+}
+slaac_on_nondefault_fib6_body()
+{
+       # Configure the epair interfaces to use nonrouteable RFC3849
+       # addresses and non-default FIBs
+       ADDR="2001:db8::2"
+       GATEWAY="2001:db8::1"
+       SUBNET="2001:db8:"
+       MASK="64"
+
+       atf_expect_fail "PR196361 IPv6 network routes don't respect 
net.add_addr_allfibs=0"
+
+       # Check system configuration
+       if [ 0 != `sysctl -n net.add_addr_allfibs` ]; then
+               atf_skip "This test requires net.add_addr_allfibs=0"
+       fi
+       get_fibs 2
+
+       sysctl -n "net.inet6.ip6.rfc6204w3" >> "rfc6204w3.state"
+       sysctl -n "net.inet6.ip6.forwarding" >> "forwarding.state"
+       # Enable forwarding so the kernel will send RAs
+       sysctl net.inet6.ip6.forwarding=1
+       # Enable RFC6204W3 mode so the kernel will enable default router
+       # selection while also forwarding packets
+       sysctl net.inet6.ip6.rfc6204w3=1
+
+       # Configure epair interfaces
+       get_epair
+       setup_iface "$EPAIRA" "$FIB0" inet6 ${ADDR} ${MASK}
+       echo ifconfig "$EPAIRB" up inet6 fib $FIB1 -ifdisabled accept_rtadv
+       ifconfig "$EPAIRB" inet6 -ifdisabled accept_rtadv fib $FIB1 up
+       rtadvd -p rtadvd.pid -C rtadvd.sock -c /dev/null "$EPAIRA"
+       rtsol "$EPAIRB"
+
+       # Check SLAAC address
+       atf_check -o match:"inet6 ${SUBNET}.*prefixlen ${MASK}.*autoconf" \
+               ifconfig "$EPAIRB"
+       # Check local route
+       atf_check -o match:"${SUBNET}.*\<UHS\>.*lo0" \
+               netstat -rnf inet6 -F $FIB1
+       # Check subnet route
+       atf_check -o match:"${SUBNET}:/${MASK}.*\<U\>.*$EPAIRB" \
+               netstat -rnf inet6 -F $FIB1
+       # Check default route
+       atf_check -o match:"default.*\<UG\>.*$EPAIRB" \
+               netstat -rnf inet6 -F $FIB1
+
+       # Check that none of the above routes appeared on other routes
+       for fib in $( seq 0 $(($(sysctl -n net.fibs) - 1))); do
+               if [ "$fib" = "$FIB1" -o "$fib" = "$FIB0" ]; then
+                       continue
+               fi
+               atf_check -o not-match:"${SUBNET}.*\<UHS\>.*lo0" \
+                       netstat -rnf inet6 -F $fib
+               atf_check -o not-match:"${SUBNET}:/${MASK}.*\<U\>.*$EPAIRB" \
+                       netstat -rnf inet6 -F $fib
+               atf_check -o not-match:"default.*\<UG\>.*$EPAIRB" \
+                       netstat -rnf inet6 -F $fib
+       done
+}
+slaac_on_nondefault_fib6_cleanup()
+{
+       cleanup_ifaces
+       if [ -f "rtadvd.pid" ]; then
+               pkill -F rtadvd.pid
+               rm rtadvd.pid
+       fi
+       if [ -f "rfc6204w3.state" ] ; then
+               sysctl "net.inet6.ip6.rfc6204w3"=`cat "rfc6204w3.state"`
+               rm "rfc6204w3.state"
+       fi
+       if [ -f "forwarding.state" ] ; then
+               sysctl "net.inet6.ip6.forwarding"=`cat "forwarding.state"`
+               rm "forwarding.state"
+       fi
+}
+
 # Regression test for kern/187550
 atf_test_case subnet_route_with_multiple_fibs_on_same_subnet cleanup
 subnet_route_with_multiple_fibs_on_same_subnet_head()
@@ -648,6 +731,7 @@ atf_init_test_cases()
        atf_add_test_case same_ip_multiple_ifaces_fib0
        atf_add_test_case same_ip_multiple_ifaces
        atf_add_test_case same_ip_multiple_ifaces_inet6
+       atf_add_test_case slaac_on_nondefault_fib6
        atf_add_test_case subnet_route_with_multiple_fibs_on_same_subnet
        atf_add_test_case subnet_route_with_multiple_fibs_on_same_subnet_inet6
        atf_add_test_case udp_dontroute
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