--- zzzz-none-000/linux-4.4.60/net/bridge/Kconfig 2017-04-08 07:53:53.000000000 +0000 +++ dragonfly-4020-701/linux-4.4.60/net/bridge/Kconfig 2018-11-08 13:36:17.000000000 +0000 @@ -33,6 +33,24 @@ If unsure, say N. +config AVM_BRIDGE_FLOOD_RATELIMITER + bool "Port flood rate limiting" + depends on AVM_ENHANCED + depends on BRIDGE + default y + ---help--- + AVM extension + + This enables a simple, configurable bridge flood rate limiting mechanism, to + help protect accidental or willful network loops. You can configure a + maximum packet rate and a reserve. The reserve can be higher to allow for + short bursts. + + The ratelimiter will only limit packets which are forwarded on all ports. + Traffic (unicast and multicast) that is forwarded to specific ports is + unaffected. Locally generated traffic is unaffected as well. It is + disabled by default and must be configured through sysfs. + config BRIDGE_IGMP_SNOOPING bool "IGMP/MLD snooping" depends on BRIDGE @@ -47,6 +65,49 @@ If unsure, say Y. +config AVM_BRIDGE_MULTICAST_TO_UNICAST + bool "bridge multicast to unicast conversion" + depends on BRIDGE_IGMP_SNOOPING + default y + ---help--- + AVM extension + + If you say Y here, then the Ethernet bridge ports record the source + MAC addresses of IGMP report senders, and perform a multicast-to-unicast + conversion (Layer 2) before forwarding corresponding multicast packets. This + is useful in wireless networks where multicast traffic is severely limited + by 802.11. + + Even with this being configured, the feature must be turned on on a per-port + basis at runtime. + + Say N to exclude this support and reduce the binary size. + + If unsure, say Y. + +config AVM_BRIDGE_MULTICAST_TO_UNICAST_DEFAULT_THRESHOLD + int "multicast to unicast default threshold" + depends on AVM_BRIDGE_MULTICAST_TO_UNICAST + default 3 + ---help--- + AVM extension + + This selects the default threshold for switching from multicast-as-unicast + transmission back to plain multicast. This is really only the default, + the threshold can be configured on a per port basis on sysfs. The threshold + is multicast group specific. + +config AVM_BRIDGE_MULTICAST_TO_UNICAST_NO_SSDP + bool "multicast to unicast excption for well known SSDP multicasts" + depends on AVM_BRIDGE_MULTICAST_TO_UNICAST + default y + ---help--- + AVM extension + + This selects the exception for SSDP multicasts in the multicast-to-unicast-feature. + To avoid problems with SSDP say Y here because there are a lot of + multicast senders and receipients inside the home net normally. + config BRIDGE_VLAN_FILTERING bool "VLAN filtering" depends on BRIDGE @@ -60,3 +121,22 @@ Say N to exclude this support and reduce the binary size. If unsure, say Y. + +config AVM_BRIDGE_ISOLATION + bool "Isolate bridge ports from each other" + depends on BRIDGE + depends on NETFILTER + depends on SYSFS + depends on AVM_ENHANCED + default y + ---help--- + AVM extension + + This feature allows to create isolated bridge ports pairs, so that clients + connected through an isolated port cannot communicate with clients + behind other isolated ports. Traffic flowing from/to non-isolated ports + is not affected. + + This is implemented in a bridge netfilter hook, therefore + at least one of net.bridge.br-nf-call-* sysctl must be enabled. + net.bridge.br-nf-call-custom is sufficient.