diff options
Diffstat (limited to 'target/linux/generic/hack-4.14/641-bridge_port_isolate.patch')
| -rw-r--r-- | target/linux/generic/hack-4.14/641-bridge_port_isolate.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/target/linux/generic/hack-4.14/641-bridge_port_isolate.patch b/target/linux/generic/hack-4.14/641-bridge_port_isolate.patch new file mode 100644 index 0000000000..ab9f476577 --- /dev/null +++ b/target/linux/generic/hack-4.14/641-bridge_port_isolate.patch @@ -0,0 +1,76 @@ +From e988390850731aa1697ed09d47b0932fac1af175 Mon Sep 17 00:00:00 2001 +From: Felix Fietkau <nbd@nbd.name> +Date: Fri, 7 Jul 2017 17:20:03 +0200 +Subject: bridge: port isolate + +Isolating individual bridge ports + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + include/linux/if_bridge.h | 1 + + net/bridge/br_forward.c | 5 +++++ + net/bridge/br_input.c | 3 +++ + net/bridge/br_sysfs_if.c | 2 ++ + 4 files changed, 11 insertions(+) + +--- a/include/linux/if_bridge.h ++++ b/include/linux/if_bridge.h +@@ -49,6 +49,7 @@ struct br_ip_list { + #define BR_MULTICAST_TO_UNICAST BIT(12) + #define BR_VLAN_TUNNEL BIT(13) + #define BR_BCAST_FLOOD BIT(14) ++#define BR_ISOLATE_MODE BIT(15) + + #define BR_DEFAULT_AGEING_TIME (300 * HZ) + +--- a/net/bridge/br_forward.c ++++ b/net/bridge/br_forward.c +@@ -141,6 +141,9 @@ static int deliver_clone(const struct ne + void br_forward(const struct net_bridge_port *to, + struct sk_buff *skb, bool local_rcv, bool local_orig) + { ++ if (to->flags & BR_ISOLATE_MODE) ++ to = NULL; ++ + if (to && should_deliver(to, skb)) { + if (local_rcv) + deliver_clone(to, skb, local_orig); +@@ -183,6 +186,8 @@ void br_flood(struct net_bridge *br, str + struct net_bridge_port *p; + + list_for_each_entry_rcu(p, &br->port_list, list) { ++ if (!local_orig && (p->flags & BR_ISOLATE_MODE)) ++ continue; + /* Do not flood unicast traffic to ports that turn it off, nor + * other traffic if flood off, except for traffic we originate + */ +--- a/net/bridge/br_input.c ++++ b/net/bridge/br_input.c +@@ -177,6 +177,9 @@ int br_handle_frame_finish(struct net *n + if (IS_ENABLED(CONFIG_INET) && skb->protocol == htons(ETH_P_ARP)) + br_do_proxy_arp(skb, br, vid, p); + ++ if (p->flags & BR_ISOLATE_MODE) ++ return br_pass_frame_up(skb); ++ + switch (pkt_type) { + case BR_PKT_MULTICAST: + mdst = br_mdb_get(br, skb, vid); +--- a/net/bridge/br_sysfs_if.c ++++ b/net/bridge/br_sysfs_if.c +@@ -174,6 +174,7 @@ BRPORT_ATTR_FLAG(proxyarp, BR_PROXYARP); + BRPORT_ATTR_FLAG(proxyarp_wifi, BR_PROXYARP_WIFI); + BRPORT_ATTR_FLAG(multicast_flood, BR_MCAST_FLOOD); + BRPORT_ATTR_FLAG(broadcast_flood, BR_BCAST_FLOOD); ++BRPORT_ATTR_FLAG(isolate_mode, BR_ISOLATE_MODE); + + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING + static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) +@@ -223,6 +224,7 @@ static const struct brport_attribute *br + &brport_attr_proxyarp_wifi, + &brport_attr_multicast_flood, + &brport_attr_broadcast_flood, ++ &brport_attr_isolate_mode, + NULL + }; + |