debian/patches/pve/0009-add-arp-accept-option.patch

   1 From 45db39f606e09486889128b93f1942639620d2aa Mon Sep 17 00:00:00 2001
   2 From: Alexandre Derumier <aderumier@odiso.com>
   3 Date: Tue, 3 Sep 2019 09:43:38 +0200
   4 Subject: [PATCH] add arp-accept option.
   5
   6 Currently, the only way to enable arp-accept is to enable
   7 a policy with l3_intf_arp_accept.
   8
   9 But this enable arp-accept for all bridges.
  10
  11 This option allow to define it for specific bridge.
  12
  13 This is needed with bgp-evpn and vm migration
  14 https://github.com/FRRouting/frr/issues/4904
  15 ---
  16  ifupdown2/addons/address.py | 9 ++++++++-
  17  1 file changed, 8 insertions(+), 1 deletion(-)
  18
  19 diff --git a/ifupdown2/addons/address.py b/ifupdown2/addons/address.py
  20 index f576dc0..762c58c 100644
  21 --- a/ifupdown2/addons/address.py
  22 +++ b/ifupdown2/addons/address.py
  23 @@ -96,6 +96,11 @@ class address(moduleBase):
  24                                'dual connected VxLANs',
  25                                'validvals' : ['<ipv4>', ],
  26                                'example'  : ['clagd-vxlan-anycast-ip 36.0.0.11']},
  27 +                      'arp-accept' :
  28 +                            { 'help': 'Allow gratuitous arp to update arp table',
  29 +                              'validvals': ['on', 'off', 'yes', 'no', '0', '1'],
  30 +                              'default' : 'off',
  31 +                              'example' : ['arp-accept on']},
  32                        'ip-forward' :
  33                              { 'help': 'ip forwarding flag',
  34                                'validvals': ['on', 'off', 'yes', 'no', '0', '1'],
  35 @@ -272,6 +277,8 @@ class address(moduleBase):
  36      def _process_bridge(self, ifaceobj, up):
  37          hwaddress = self._get_hwaddress(ifaceobj)
  38          addrs = ifaceobj.get_attr_value_first('address')
  39 +        arp_accept = ifaceobj.get_attr_value_first('arp-accept')
  40 +        arp_accept = utils.boolean_support_binary(arp_accept)
  41          is_vlan_dev_on_vlan_aware_bridge = False
  42          is_bridge = self.ipcmd.is_bridge(ifaceobj.name)
  43          if not is_bridge:
  44 @@ -290,7 +297,7 @@ class address(moduleBase):
  45                          self.write_file('/proc/sys/net/ipv4/conf/%s' % ifaceobj.name +
  46                                          '/arp_accept', '0')
  47                  else:
  48 -                    self.write_file('/proc/sys/net/ipv4/conf/%s/arp_accept' % ifaceobj.name, '0')
  49 +                    self.write_file('/proc/sys/net/ipv4/conf/%s/arp_accept' % ifaceobj.name, arp_accept)
  50          if hwaddress and is_vlan_dev_on_vlan_aware_bridge:
  51             if up:
  52                self.ipcmd.bridge_fdb_add(bridgename, hwaddress, vlan)
  53 --
  54 2.20.1
  55