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author | Imre Kaloz <kaloz@openwrt.org> | 2015-01-25 15:20:39 +0000 |
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committer | Imre Kaloz <kaloz@openwrt.org> | 2015-01-25 15:20:39 +0000 |
commit | d26694243af236fed09a4b38f3cc68e40ad063b5 (patch) | |
tree | df356ae59718ae0996986ccb61155243098dbc3f /target/linux/generic/patches-3.19/642-bridge_port_isolate.patch | |
parent | a46bb6ec6a0ed6eb56dc2f4551a57e63a7292753 (diff) | |
download | master-31e0f0ae-d26694243af236fed09a4b38f3cc68e40ad063b5.tar.gz master-31e0f0ae-d26694243af236fed09a4b38f3cc68e40ad063b5.tar.bz2 master-31e0f0ae-d26694243af236fed09a4b38f3cc68e40ad063b5.zip |
generic: add preliminary 3.19 support
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
SVN-Revision: 44126
Diffstat (limited to 'target/linux/generic/patches-3.19/642-bridge_port_isolate.patch')
-rw-r--r-- | target/linux/generic/patches-3.19/642-bridge_port_isolate.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.19/642-bridge_port_isolate.patch b/target/linux/generic/patches-3.19/642-bridge_port_isolate.patch new file mode 100644 index 0000000000..b1ceb31734 --- /dev/null +++ b/target/linux/generic/patches-3.19/642-bridge_port_isolate.patch @@ -0,0 +1,102 @@ +--- a/include/linux/if_bridge.h ++++ b/include/linux/if_bridge.h +@@ -44,6 +44,7 @@ struct br_ip_list { + #define BR_PROMISC BIT(7) + #define BR_PROXYARP BIT(8) + #define BR_LEARNING_SYNC BIT(9) ++#define BR_ISOLATE_MODE BIT(10) + + extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *)); + +--- a/net/bridge/br_sysfs_if.c ++++ b/net/bridge/br_sysfs_if.c +@@ -172,6 +172,22 @@ BRPORT_ATTR_FLAG(learning, BR_LEARNING); + BRPORT_ATTR_FLAG(unicast_flood, BR_FLOOD); + BRPORT_ATTR_FLAG(proxyarp, BR_PROXYARP); + ++static ssize_t show_isolate_mode(struct net_bridge_port *p, char *buf) ++{ ++ int isolate_mode = (p->flags & BR_ISOLATE_MODE) ? 1 : 0; ++ return sprintf(buf, "%d\n", isolate_mode); ++} ++static ssize_t store_isolate_mode(struct net_bridge_port *p, unsigned long v) ++{ ++ if (v) ++ p->flags |= BR_ISOLATE_MODE; ++ else ++ p->flags &= ~BR_ISOLATE_MODE; ++ return 0; ++} ++static BRPORT_ATTR(isolate_mode, S_IRUGO | S_IWUSR, ++ show_isolate_mode, store_isolate_mode); ++ + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING + static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) + { +@@ -215,6 +231,7 @@ static const struct brport_attribute *br + &brport_attr_multicast_fast_leave, + #endif + &brport_attr_proxyarp, ++ &brport_attr_isolate_mode, + NULL + }; + +--- a/net/bridge/br_input.c ++++ b/net/bridge/br_input.c +@@ -181,8 +181,8 @@ int br_handle_frame_finish(struct sk_buf + + unicast = false; + br->dev->stats.multicast++; +- } else if ((dst = __br_fdb_get(br, dest, vid)) && +- dst->is_local) { ++ } else if ((p->flags & BR_ISOLATE_MODE) || ++ ((dst = __br_fdb_get(br, dest, vid)) && dst->is_local)) { + skb2 = skb; + /* Do not forward the packet since it's local. */ + skb = NULL; +--- a/net/bridge/br_forward.c ++++ b/net/bridge/br_forward.c +@@ -117,7 +117,7 @@ EXPORT_SYMBOL_GPL(br_deliver); + /* called with rcu_read_lock */ + void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0) + { +- if (should_deliver(to, skb)) { ++ if (should_deliver(to, skb) && !(to->flags & BR_ISOLATE_MODE)) { + if (skb0) + deliver_clone(to, skb, __br_forward); + else +@@ -173,7 +173,7 @@ static void br_flood(struct net_bridge * + struct sk_buff *skb0, + void (*__packet_hook)(const struct net_bridge_port *p, + struct sk_buff *skb), +- bool unicast) ++ bool unicast, bool forward) + { + struct net_bridge_port *p; + struct net_bridge_port *prev; +@@ -181,6 +181,8 @@ static void br_flood(struct net_bridge * + prev = NULL; + + list_for_each_entry_rcu(p, &br->port_list, list) { ++ if (forward && (p->flags & BR_ISOLATE_MODE)) ++ continue; + /* Do not flood unicast traffic to ports that turn it off */ + if (unicast && !(p->flags & BR_FLOOD)) + continue; +@@ -212,14 +214,14 @@ out: + /* called with rcu_read_lock */ + void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast) + { +- br_flood(br, skb, NULL, __br_deliver, unicast); ++ br_flood(br, skb, NULL, __br_deliver, unicast, false); + } + + /* called under bridge lock */ + void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, + struct sk_buff *skb2, bool unicast) + { +- br_flood(br, skb, skb2, __br_forward, unicast); ++ br_flood(br, skb, skb2, __br_forward, unicast, true); + } + + #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |