Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights:

   1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.

   2) Add fib_sync_mem to control the amount of dirty memory we allow to
      queue up between synchronize RCU calls, from David Ahern.

   3) Make flow classifier more lockless, from Vlad Buslov.

   4) Add PHY downshift support to aquantia driver, from Heiner
      Kallweit.

   5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
      contention on SLAB spinlocks in heavy RPC workloads.

   6) Partial GSO offload support in XFRM, from Boris Pismenny.

   7) Add fast link down support to ethtool, from Heiner Kallweit.

   8) Use siphash for IP ID generator, from Eric Dumazet.

   9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
      entries, from David Ahern.

  10) Move skb->xmit_more into a per-cpu variable, from Florian
      Westphal.

  11) Improve eBPF verifier speed and increase maximum program size,
      from Alexei Starovoitov.

  12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
      spinlocks. From Neil Brown.

  13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.

  14) Improve link partner cap detection in generic PHY code, from
      Heiner Kallweit.

  15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
      Maguire.

  16) Remove SKB list implementation assumptions in SCTP, your's truly.

  17) Various cleanups, optimizations, and simplifications in r8169
      driver. From Heiner Kallweit.

  18) Add memory accounting on TX and RX path of SCTP, from Xin Long.

  19) Switch PHY drivers over to use dynamic featue detection, from
      Heiner Kallweit.

  20) Support flow steering without masking in dpaa2-eth, from Ioana
      Ciocoi.

  21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
      Pirko.

  22) Increase the strict parsing of current and future netlink
      attributes, also export such policies to userspace. From Johannes
      Berg.

  23) Allow DSA tag drivers to be modular, from Andrew Lunn.

  24) Remove legacy DSA probing support, also from Andrew Lunn.

  25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
      Haabendal.

  26) Add a generic tracepoint for TX queue timeouts to ease debugging,
      from Cong Wang.

  27) More indirect call optimizations, from Paolo Abeni"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
  cxgb4: Fix error path in cxgb4_init_module
  net: phy: improve pause mode reporting in phy_print_status
  dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
  net: macb: Change interrupt and napi enable order in open
  net: ll_temac: Improve error message on error IRQ
  net/sched: remove block pointer from common offload structure
  net: ethernet: support of_get_mac_address new ERR_PTR error
  net: usb: smsc: fix warning reported by kbuild test robot
  staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
  net: dsa: support of_get_mac_address new ERR_PTR error
  net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
  vrf: sit mtu should not be updated when vrf netdev is the link
  net: dsa: Fix error cleanup path in dsa_init_module
  l2tp: Fix possible NULL pointer dereference
  taprio: add null check on sched_nest to avoid potential null pointer dereference
  net: mvpp2: cls: fix less than zero check on a u32 variable
  net_sched: sch_fq: handle non connected flows
  net_sched: sch_fq: do not assume EDT packets are ordered
  net: hns3: use devm_kcalloc when allocating desc_cb
  net: hns3: some cleanup for struct hns3_enet_ring
  ...

1 files changed, 146 insertions, 0 deletions

diff --git a/tools/testing/selftests/netfilter/bridge_brouter.sh b/tools/testing/selftests/netfilter/bridge_brouter.sh
new file mode 100755
index 000000000000..29f3955b9af7
--- /dev/null
+++ b/tools/testing/selftests/netfilter/bridge_brouter.sh
@@ -0,0 +1,146 @@
+#!/bin/bash
+#
+# This test is for bridge 'brouting', i.e. make some packets being routed
+# rather than getting bridged even though they arrive on interface that is
+# part of a bridge.
+
+#           eth0    br0     eth0
+# setup is: ns1 <-> ns0 <-> ns2
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=0
+
+ebtables -V > /dev/null 2>&1
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without ebtables"
+	exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+ip netns add ns0
+ip netns add ns1
+ip netns add ns2
+
+ip link add veth0 netns ns0 type veth peer name eth0 netns ns1
+if [ $? -ne 0 ]; then
+	echo "SKIP: Can't create veth device"
+	exit $ksft_skip
+fi
+ip link add veth1 netns ns0 type veth peer name eth0 netns ns2
+
+ip -net ns0 link set lo up
+ip -net ns0 link set veth0 up
+ip -net ns0 link set veth1 up
+
+ip -net ns0 link add br0 type bridge
+if [ $? -ne 0 ]; then
+	echo "SKIP: Can't create bridge br0"
+	exit $ksft_skip
+fi
+
+ip -net ns0 link set veth0 master br0
+ip -net ns0 link set veth1 master br0
+ip -net ns0 link set br0 up
+ip -net ns0 addr add 10.0.0.1/24 dev br0
+
+# place both in same subnet, ns1 and ns2 connected via ns0:br0
+for i in 1 2; do
+  ip -net ns$i link set lo up
+  ip -net ns$i link set eth0 up
+  ip -net ns$i addr add 10.0.0.1$i/24 dev eth0
+done
+
+test_ebtables_broute()
+{
+	local cipt
+
+	# redirect is needed so the dstmac is rewritten to the bridge itself,
+	# ip stack won't process OTHERHOST (foreign unicast mac) packets.
+	ip netns exec ns0 ebtables -t broute -A BROUTING -p ipv4 --ip-protocol icmp -j redirect --redirect-target=DROP
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add ebtables broute redirect rule"
+		return $ksft_skip
+	fi
+
+	# ping netns1, expected to not work (ip forwarding is off)
+	ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null 2>&1
+	if [ $? -eq 0 ]; then
+		echo "ERROR: ping works, should have failed" 1>&2
+		return 1
+	fi
+
+	# enable forwarding on both interfaces.
+	# neither needs an ip address, but at least the bridge needs
+	# an ip address in same network segment as ns1 and ns2 (ns0
+	# needs to be able to determine route for to-be-forwarded packet).
+	ip netns exec ns0 sysctl -q net.ipv4.conf.veth0.forwarding=1
+	ip netns exec ns0 sysctl -q net.ipv4.conf.veth1.forwarding=1
+
+	sleep 1
+
+	ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null
+	if [ $? -ne 0 ]; then
+		echo "ERROR: ping did not work, but it should (broute+forward)" 1>&2
+		return 1
+	fi
+
+	echo "PASS: ns1/ns2 connectivity with active broute rule"
+	ip netns exec ns0 ebtables -t broute -F
+
+	# ping netns1, expected to work (frames are bridged)
+	ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null
+	if [ $? -ne 0 ]; then
+		echo "ERROR: ping did not work, but it should (bridged)" 1>&2
+		return 1
+	fi
+
+	ip netns exec ns0 ebtables -t filter -A FORWARD -p ipv4 --ip-protocol icmp -j DROP
+
+	# ping netns1, expected to not work (DROP in bridge forward)
+	ip netns exec ns1 ping -q -c 1 10.0.0.12 > /dev/null 2>&1
+	if [ $? -eq 0 ]; then
+		echo "ERROR: ping works, should have failed (icmp forward drop)" 1>&2
+		return 1
+	fi
+
+	# re-activate brouter
+	ip netns exec ns0 ebtables -t broute -A BROUTING -p ipv4 --ip-protocol icmp -j redirect --redirect-target=DROP
+
+	ip netns exec ns2 ping -q -c 1 10.0.0.11 > /dev/null
+	if [ $? -ne 0 ]; then
+		echo "ERROR: ping did not work, but it should (broute+forward 2)" 1>&2
+		return 1
+	fi
+
+	echo "PASS: ns1/ns2 connectivity with active broute rule and bridge forward drop"
+	return 0
+}
+
+# test basic connectivity
+ip netns exec ns1 ping -c 1 -q 10.0.0.12 > /dev/null
+if [ $? -ne 0 ]; then
+    echo "ERROR: Could not reach ns2 from ns1" 1>&2
+    ret=1
+fi
+
+ip netns exec ns2 ping -c 1 -q 10.0.0.11 > /dev/null
+if [ $? -ne 0 ]; then
+    echo "ERROR: Could not reach ns1 from ns2" 1>&2
+    ret=1
+fi
+
+if [ $ret -eq 0 ];then
+    echo "PASS: netns connectivity: ns1 and ns2 can reach each other"
+fi
+
+test_ebtables_broute
+ret=$?
+for i in 0 1 2; do ip netns del ns$i;done
+
+exit $ret