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Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_device.c24
-rw-r--r--net/bridge/br_fdb.c15
-rw-r--r--net/bridge/br_forward.c14
-rw-r--r--net/bridge/br_if.c2
-rw-r--r--net/bridge/br_input.c18
-rw-r--r--net/bridge/br_mdb.c16
-rw-r--r--net/bridge/br_multicast.c337
-rw-r--r--net/bridge/br_netfilter.c4
-rw-r--r--net/bridge/br_netlink.c14
-rw-r--r--net/bridge/br_notify.c2
-rw-r--r--net/bridge/br_private.h66
-rw-r--r--net/bridge/br_sysfs_br.c28
-rw-r--r--net/bridge/br_sysfs_if.c4
-rw-r--r--net/bridge/br_vlan.c4
-rw-r--r--net/bridge/netfilter/ebt_ulog.c6
-rw-r--r--net/bridge/netfilter/ebtables.c6
16 files changed, 411 insertions, 149 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 967312803e41..89659d4ed1f9 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -22,6 +22,9 @@
#include <asm/uaccess.h>
#include "br_private.h"
+#define COMMON_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | \
+ NETIF_F_GSO_MASK | NETIF_F_HW_CSUM)
+
/* net device transmit always called with BH disabled */
netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
{
@@ -55,10 +58,10 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
skb_pull(skb, ETH_HLEN);
if (is_broadcast_ether_addr(dest))
- br_flood_deliver(br, skb);
+ br_flood_deliver(br, skb, false);
else if (is_multicast_ether_addr(dest)) {
if (unlikely(netpoll_tx_running(dev))) {
- br_flood_deliver(br, skb);
+ br_flood_deliver(br, skb, false);
goto out;
}
if (br_multicast_rcv(br, NULL, skb)) {
@@ -67,14 +70,15 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
}
mdst = br_mdb_get(br, skb, vid);
- if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb))
+ if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
+ br_multicast_querier_exists(br, eth_hdr(skb)))
br_multicast_deliver(mdst, skb);
else
- br_flood_deliver(br, skb);
+ br_flood_deliver(br, skb, false);
} else if ((dst = __br_fdb_get(br, dest, vid)) != NULL)
br_deliver(dst->dst, skb);
else
- br_flood_deliver(br, skb);
+ br_flood_deliver(br, skb, true);
out:
rcu_read_unlock();
@@ -346,12 +350,10 @@ void br_dev_setup(struct net_device *dev)
dev->tx_queue_len = 0;
dev->priv_flags = IFF_EBRIDGE;
- dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
- NETIF_F_GSO_MASK | NETIF_F_HW_CSUM | NETIF_F_LLTX |
- NETIF_F_NETNS_LOCAL | NETIF_F_HW_VLAN_CTAG_TX;
- dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
- NETIF_F_GSO_MASK | NETIF_F_HW_CSUM |
- NETIF_F_HW_VLAN_CTAG_TX;
+ dev->features = COMMON_FEATURES | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL |
+ NETIF_F_HW_VLAN_CTAG_TX;
+ dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX;
+ dev->vlan_features = COMMON_FEATURES;
br->dev = dev;
spin_lock_init(&br->lock);
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index ebfa4443c69b..ffd5874f2592 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -161,7 +161,7 @@ void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr)
if (!pv)
return;
- for_each_set_bit_from(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit_from(vid, pv->vlan_bitmap, VLAN_N_VID) {
f = __br_fdb_get(br, br->dev->dev_addr, vid);
if (f && f->is_local && !f->dst)
fdb_delete(br, f);
@@ -707,6 +707,11 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
}
}
+ if (is_zero_ether_addr(addr)) {
+ pr_info("bridge: RTM_NEWNEIGH with invalid ether address\n");
+ return -EINVAL;
+ }
+
p = br_port_get_rtnl(dev);
if (p == NULL) {
pr_info("bridge: RTM_NEWNEIGH %s not a bridge port\n",
@@ -725,7 +730,7 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
/* VID was specified, so use it. */
err = __br_fdb_add(ndm, p, addr, nlh_flags, vid);
} else {
- if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN)) {
+ if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) {
err = __br_fdb_add(ndm, p, addr, nlh_flags, 0);
goto out;
}
@@ -734,7 +739,7 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
* specify a VLAN. To be nice, add/update entry for every
* vlan on this port.
*/
- for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) {
err = __br_fdb_add(ndm, p, addr, nlh_flags, vid);
if (err)
goto out;
@@ -812,7 +817,7 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
err = __br_fdb_delete(p, addr, vid);
} else {
- if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN)) {
+ if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) {
err = __br_fdb_delete(p, addr, 0);
goto out;
}
@@ -822,7 +827,7 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
* vlan on this port.
*/
err = -ENOENT;
- for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) {
err &= __br_fdb_delete(p, addr, vid);
}
}
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 092b20e4ee4c..4b81b1471789 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -174,7 +174,8 @@ out:
static void br_flood(struct net_bridge *br, struct sk_buff *skb,
struct sk_buff *skb0,
void (*__packet_hook)(const struct net_bridge_port *p,
- struct sk_buff *skb))
+ struct sk_buff *skb),
+ bool unicast)
{
struct net_bridge_port *p;
struct net_bridge_port *prev;
@@ -182,6 +183,9 @@ static void br_flood(struct net_bridge *br, struct sk_buff *skb,
prev = NULL;
list_for_each_entry_rcu(p, &br->port_list, list) {
+ /* Do not flood unicast traffic to ports that turn it off */
+ if (unicast && !(p->flags & BR_FLOOD))
+ continue;
prev = maybe_deliver(prev, p, skb, __packet_hook);
if (IS_ERR(prev))
goto out;
@@ -203,16 +207,16 @@ out:
/* called with rcu_read_lock */
-void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb)
+void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast)
{
- br_flood(br, skb, NULL, __br_deliver);
+ br_flood(br, skb, NULL, __br_deliver, unicast);
}
/* called under bridge lock */
void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
- struct sk_buff *skb2)
+ struct sk_buff *skb2, bool unicast)
{
- br_flood(br, skb, skb2, __br_forward);
+ br_flood(br, skb, skb2, __br_forward, unicast);
}
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 4cdba60926ff..5623be6b9ecd 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -221,7 +221,7 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
p->path_cost = port_cost(dev);
p->priority = 0x8000 >> BR_PORT_BITS;
p->port_no = index;
- p->flags = 0;
+ p->flags = BR_LEARNING | BR_FLOOD;
br_init_port(p);
p->state = BR_STATE_DISABLED;
br_stp_port_timer_init(p);
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 828e2bcc1f52..a2fd37ec35f7 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -65,6 +65,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
struct net_bridge_fdb_entry *dst;
struct net_bridge_mdb_entry *mdst;
struct sk_buff *skb2;
+ bool unicast = true;
u16 vid = 0;
if (!p || p->state == BR_STATE_DISABLED)
@@ -75,7 +76,8 @@ int br_handle_frame_finish(struct sk_buff *skb)
/* insert into forwarding database after filtering to avoid spoofing */
br = p->br;
- br_fdb_update(br, p, eth_hdr(skb)->h_source, vid);
+ if (p->flags & BR_LEARNING)
+ br_fdb_update(br, p, eth_hdr(skb)->h_source, vid);
if (!is_broadcast_ether_addr(dest) && is_multicast_ether_addr(dest) &&
br_multicast_rcv(br, p, skb))
@@ -94,11 +96,13 @@ int br_handle_frame_finish(struct sk_buff *skb)
dst = NULL;
- if (is_broadcast_ether_addr(dest))
+ if (is_broadcast_ether_addr(dest)) {
skb2 = skb;
- else if (is_multicast_ether_addr(dest)) {
+ unicast = false;
+ } else if (is_multicast_ether_addr(dest)) {
mdst = br_mdb_get(br, skb, vid);
- if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) {
+ if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
+ br_multicast_querier_exists(br, eth_hdr(skb))) {
if ((mdst && mdst->mglist) ||
br_multicast_is_router(br))
skb2 = skb;
@@ -109,6 +113,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
} else
skb2 = skb;
+ unicast = false;
br->dev->stats.multicast++;
} else if ((dst = __br_fdb_get(br, dest, vid)) &&
dst->is_local) {
@@ -122,7 +127,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
dst->used = jiffies;
br_forward(dst->dst, skb, skb2);
} else
- br_flood_forward(br, skb, skb2);
+ br_flood_forward(br, skb, skb2, unicast);
}
if (skb2)
@@ -142,7 +147,8 @@ static int br_handle_local_finish(struct sk_buff *skb)
u16 vid = 0;
br_vlan_get_tag(skb, &vid);
- br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid);
+ if (p->flags & BR_LEARNING)
+ br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid);
return 0; /* process further */
}
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 19942e38fd2d..6319c4333c39 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -414,16 +414,20 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry)
if (!netif_running(br->dev) || br->multicast_disabled)
return -EINVAL;
- if (timer_pending(&br->multicast_querier_timer))
- return -EBUSY;
-
ip.proto = entry->addr.proto;
- if (ip.proto == htons(ETH_P_IP))
+ if (ip.proto == htons(ETH_P_IP)) {
+ if (timer_pending(&br->ip4_querier.timer))
+ return -EBUSY;
+
ip.u.ip4 = entry->addr.u.ip4;
#if IS_ENABLED(CONFIG_IPV6)
- else
+ } else {
+ if (timer_pending(&br->ip6_querier.timer))
+ return -EBUSY;
+
ip.u.ip6 = entry->addr.u.ip6;
#endif
+ }
spin_lock_bh(&br->multicast_lock);
mdb = mlock_dereference(br->mdb, br);
@@ -447,7 +451,7 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry)
call_rcu_bh(&p->rcu, br_multicast_free_pg);
err = 0;
- if (!mp->ports && !mp->mglist &&
+ if (!mp->ports && !mp->mglist && mp->timer_armed &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
break;
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index d6448e35e027..bbcb43582496 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -23,6 +23,7 @@
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/timer.h>
+#include <linux/inetdevice.h>
#include <net/ip.h>
#if IS_ENABLED(CONFIG_IPV6)
#include <net/ipv6.h>
@@ -32,7 +33,8 @@
#include "br_private.h"
-static void br_multicast_start_querier(struct net_bridge *br);
+static void br_multicast_start_querier(struct net_bridge *br,
+ struct bridge_mcast_query *query);
unsigned int br_mdb_rehash_seq;
static inline int br_ip_equal(const struct br_ip *a, const struct br_ip *b)
@@ -269,7 +271,7 @@ static void br_multicast_del_pg(struct net_bridge *br,
del_timer(&p->timer);
call_rcu_bh(&p->rcu, br_multicast_free_pg);
- if (!mp->ports && !mp->mglist &&
+ if (!mp->ports && !mp->mglist && mp->timer_armed &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
@@ -381,7 +383,8 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br,
iph->frag_off = htons(IP_DF);
iph->ttl = 1;
iph->protocol = IPPROTO_IGMP;
- iph->saddr = 0;
+ iph->saddr = br->multicast_query_use_ifaddr ?
+ inet_select_addr(br->dev, 0, RT_SCOPE_LINK) : 0;
iph->daddr = htonl(INADDR_ALLHOSTS_GROUP);
((u8 *)&iph[1])[0] = IPOPT_RA;
((u8 *)&iph[1])[1] = 4;
@@ -616,6 +619,7 @@ rehash:
mp->br = br;
mp->addr = *group;
+
setup_timer(&mp->timer, br_multicast_group_expired,
(unsigned long)mp);
@@ -655,7 +659,6 @@ static int br_multicast_add_group(struct net_bridge *br,
struct net_bridge_mdb_entry *mp;
struct net_bridge_port_group *p;
struct net_bridge_port_group __rcu **pp;
- unsigned long now = jiffies;
int err;
spin_lock(&br->multicast_lock);
@@ -670,7 +673,6 @@ static int br_multicast_add_group(struct net_bridge *br,
if (!port) {
mp->mglist = true;
- mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
}
@@ -678,7 +680,7 @@ static int br_multicast_add_group(struct net_bridge *br,
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
if (p->port == port)
- goto found;
+ goto out;
if ((unsigned long)p->port < (unsigned long)port)
break;
}
@@ -689,8 +691,6 @@ static int br_multicast_add_group(struct net_bridge *br,
rcu_assign_pointer(*pp, p);
br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
-found:
- mod_timer(&p->timer, now + br->multicast_membership_interval);
out:
err = 0;
@@ -756,20 +756,35 @@ static void br_multicast_local_router_expired(unsigned long data)
{
}
-static void br_multicast_querier_expired(unsigned long data)
+static void br_multicast_querier_expired(struct net_bridge *br,
+ struct bridge_mcast_query *query)
{
- struct net_bridge *br = (void *)data;
-
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || br->multicast_disabled)
goto out;
- br_multicast_start_querier(br);
+ br_multicast_start_querier(br, query);
out:
spin_unlock(&br->multicast_lock);
}
+static void br_ip4_multicast_querier_expired(unsigned long data)
+{
+ struct net_bridge *br = (void *)data;
+
+ br_multicast_querier_expired(br, &br->ip4_query);
+}
+
+#if IS_ENABLED(CONFIG_IPV6)
+static void br_ip6_multicast_querier_expired(unsigned long data)
+{
+ struct net_bridge *br = (void *)data;
+
+ br_multicast_querier_expired(br, &br->ip6_query);
+}
+#endif
+
static void __br_multicast_send_query(struct net_bridge *br,
struct net_bridge_port *port,
struct br_ip *ip)
@@ -790,37 +805,45 @@ static void __br_multicast_send_query(struct net_bridge *br,
}
static void br_multicast_send_query(struct net_bridge *br,
- struct net_bridge_port *port, u32 sent)
+ struct net_bridge_port *port,
+ struct bridge_mcast_query *query)
{
unsigned long time;
struct br_ip br_group;
+ struct bridge_mcast_querier *querier = NULL;
if (!netif_running(br->dev) || br->multicast_disabled ||
- !br->multicast_querier ||
- timer_pending(&br->multicast_querier_timer))
+ !br->multicast_querier)
return;
memset(&br_group.u, 0, sizeof(br_group.u));
- br_group.proto = htons(ETH_P_IP);
- __br_multicast_send_query(br, port, &br_group);
-
+ if (port ? (query == &port->ip4_query) :
+ (query == &br->ip4_query)) {
+ querier = &br->ip4_querier;
+ br_group.proto = htons(ETH_P_IP);
#if IS_ENABLED(CONFIG_IPV6)
- br_group.proto = htons(ETH_P_IPV6);
- __br_multicast_send_query(br, port, &br_group);
+ } else {
+ querier = &br->ip6_querier;
+ br_group.proto = htons(ETH_P_IPV6);
#endif
+ }
+
+ if (!querier || timer_pending(&querier->timer))
+ return;
+
+ __br_multicast_send_query(br, port, &br_group);
time = jiffies;
- time += sent < br->multicast_startup_query_count ?
+ time += query->startup_sent < br->multicast_startup_query_count ?
br->multicast_startup_query_interval :
br->multicast_query_interval;
- mod_timer(port ? &port->multicast_query_timer :
- &br->multicast_query_timer, time);
+ mod_timer(&query->timer, time);
}
-static void br_multicast_port_query_expired(unsigned long data)
+static void br_multicast_port_query_expired(struct net_bridge_port *port,
+ struct bridge_mcast_query *query)
{
- struct net_bridge_port *port = (void *)data;
struct net_bridge *br = port->br;
spin_lock(&br->multicast_lock);
@@ -828,25 +851,43 @@ static void br_multicast_port_query_expired(unsigned long data)
port->state == BR_STATE_BLOCKING)
goto out;
- if (port->multicast_startup_queries_sent <
- br->multicast_startup_query_count)
- port->multicast_startup_queries_sent++;
+ if (query->startup_sent < br->multicast_startup_query_count)
+ query->startup_sent++;
- br_multicast_send_query(port->br, port,
- port->multicast_startup_queries_sent);
+ br_multicast_send_query(port->br, port, query);
out:
spin_unlock(&br->multicast_lock);
}
+static void br_ip4_multicast_port_query_expired(unsigned long data)
+{
+ struct net_bridge_port *port = (void *)data;
+
+ br_multicast_port_query_expired(port, &port->ip4_query);
+}
+
+#if IS_ENABLED(CONFIG_IPV6)
+static void br_ip6_multicast_port_query_expired(unsigned long data)
+{
+ struct net_bridge_port *port = (void *)data;
+
+ br_multicast_port_query_expired(port, &port->ip6_query);
+}
+#endif
+
void br_multicast_add_port(struct net_bridge_port *port)
{
port->multicast_router = 1;
setup_timer(&port->multicast_router_timer, br_multicast_router_expired,
(unsigned long)port);
- setup_timer(&port->multicast_query_timer,
- br_multicast_port_query_expired, (unsigned long)port);
+ setup_timer(&port->ip4_query.timer, br_ip4_multicast_port_query_expired,
+ (unsigned long)port);
+#if IS_ENABLED(CONFIG_IPV6)
+ setup_timer(&port->ip6_query.timer, br_ip6_multicast_port_query_expired,
+ (unsigned long)port);
+#endif
}
void br_multicast_del_port(struct net_bridge_port *port)
@@ -854,13 +895,13 @@ void br_multicast_del_port(struct net_bridge_port *port)
del_timer_sync(&port->multicast_router_timer);
}
-static void __br_multicast_enable_port(struct net_bridge_port *port)
+static void br_multicast_enable(struct bridge_mcast_query *query)
{
- port->multicast_startup_queries_sent = 0;
+ query->startup_sent = 0;
- if (try_to_del_timer_sync(&port->multicast_query_timer) >= 0 ||
- del_timer(&port->multicast_query_timer))
- mod_timer(&port->multicast_query_timer, jiffies);
+ if (try_to_del_timer_sync(&query->timer) >= 0 ||
+ del_timer(&query->timer))
+ mod_timer(&query->timer, jiffies);
}
void br_multicast_enable_port(struct net_bridge_port *port)
@@ -871,7 +912,10 @@ void br_multicast_enable_port(struct net_bridge_port *port)
if (br->multicast_disabled || !netif_running(br->dev))
goto out;
- __br_multicast_enable_port(port);
+ br_multicast_enable(&port->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+ br_multicast_enable(&port->ip6_query);
+#endif
out:
spin_unlock(&br->multicast_lock);
@@ -890,7 +934,10 @@ void br_multicast_disable_port(struct net_bridge_port *port)
if (!hlist_unhashed(&port->rlist))
hlist_del_init_rcu(&port->rlist);
del_timer(&port->multicast_router_timer);
- del_timer(&port->multicast_query_timer);
+ del_timer(&port->ip4_query.timer);
+#if IS_ENABLED(CONFIG_IPV6)
+ del_timer(&port->ip6_query.timer);
+#endif
spin_unlock(&br->multicast_lock);
}
@@ -1015,8 +1062,19 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br,
}
#endif
+static void
+br_multicast_update_querier_timer(struct net_bridge *br,
+ struct bridge_mcast_querier *querier,
+ unsigned long max_delay)
+{
+ if (!timer_pending(&querier->timer))
+ querier->delay_time = jiffies + max_delay;
+
+ mod_timer(&querier->timer, jiffies + br->multicast_querier_interval);
+}
+
/*
- * Add port to rotuer_list
+ * Add port to router_list
* list is maintained ordered by pointer value
* and locked by br->multicast_lock and RCU
*/
@@ -1065,12 +1123,13 @@ timer:
static void br_multicast_query_received(struct net_bridge *br,
struct net_bridge_port *port,
- int saddr)
+ struct bridge_mcast_querier *querier,
+ int saddr,
+ unsigned long max_delay)
{
if (saddr)
- mod_timer(&br->multicast_querier_timer,
- jiffies + br->multicast_querier_interval);
- else if (timer_pending(&br->multicast_querier_timer))
+ br_multicast_update_querier_timer(br, querier, max_delay);
+ else if (timer_pending(&querier->timer))
return;
br_multicast_mark_router(br, port);
@@ -1097,8 +1156,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
(port && port->state == BR_STATE_DISABLED))
goto out;
- br_multicast_query_received(br, port, !!iph->saddr);
-
group = ih->group;
if (skb->len == sizeof(*ih)) {
@@ -1122,6 +1179,9 @@ static int br_ip4_multicast_query(struct net_bridge *br,
IGMPV3_MRC(ih3->code) * (HZ / IGMP_TIMER_SCALE) : 1;
}
+ br_multicast_query_received(br, port, &br->ip4_querier, !!iph->saddr,
+ max_delay);
+
if (!group)
goto out;
@@ -1130,6 +1190,9 @@ static int br_ip4_multicast_query(struct net_bridge *br,
if (!mp)
goto out;
+ mod_timer(&mp->timer, now + br->multicast_membership_interval);
+ mp->timer_armed = true;
+
max_delay *= br->multicast_last_member_count;
if (mp->mglist &&
@@ -1174,8 +1237,6 @@ static int br_ip6_multicast_query(struct net_bridge *br,
(port && port->state == BR_STATE_DISABLED))
goto out;
- br_multicast_query_received(br, port, !ipv6_addr_any(&ip6h->saddr));
-
if (skb->len == sizeof(*mld)) {
if (!pskb_may_pull(skb, sizeof(*mld))) {
err = -EINVAL;
@@ -1185,7 +1246,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
max_delay = msecs_to_jiffies(ntohs(mld->mld_maxdelay));
if (max_delay)
group = &mld->mld_mca;
- } else if (skb->len >= sizeof(*mld2q)) {
+ } else {
if (!pskb_may_pull(skb, sizeof(*mld2q))) {
err = -EINVAL;
goto out;
@@ -1193,9 +1254,13 @@ static int br_ip6_multicast_query(struct net_bridge *br,
mld2q = (struct mld2_query *)icmp6_hdr(skb);
if (!mld2q->mld2q_nsrcs)
group = &mld2q->mld2q_mca;
- max_delay = mld2q->mld2q_mrc ? MLDV2_MRC(ntohs(mld2q->mld2q_mrc)) : 1;
+
+ max_delay = max(msecs_to_jiffies(MLDV2_MRC(ntohs(mld2q->mld2q_mrc))), 1UL);
}
+ br_multicast_query_received(br, port, &br->ip6_querier,
+ !ipv6_addr_any(&ip6h->saddr), max_delay);
+
if (!group)
goto out;
@@ -1204,6 +1269,9 @@ static int br_ip6_multicast_query(struct net_bridge *br,
if (!mp)
goto out;
+ mod_timer(&mp->timer, now + br->multicast_membership_interval);
+ mp->timer_armed = true;
+
max_delay *= br->multicast_last_member_count;
if (mp->mglist &&
(timer_pending(&mp->timer) ?
@@ -1228,7 +1296,9 @@ out:
static void br_multicast_leave_group(struct net_bridge *br,
struct net_bridge_port *port,
- struct br_ip *group)
+ struct br_ip *group,
+ struct bridge_mcast_querier *querier,
+ struct bridge_mcast_query *query)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
@@ -1239,7 +1309,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) ||
(port && port->state == BR_STATE_DISABLED) ||
- timer_pending(&br->multicast_querier_timer))
+ timer_pending(&querier->timer))
goto out;
mdb = mlock_dereference(br->mdb, br);
@@ -1247,6 +1317,31 @@ static void br_multicast_leave_group(struct net_bridge *br,
if (!mp)
goto out;
+ if (br->multicast_querier) {
+ __br_multicast_send_query(br, port, &mp->addr);
+
+ time = jiffies + br->multicast_last_member_count *
+ br->multicast_last_member_interval;
+
+ mod_timer(&query->timer, time);
+
+ for (p = mlock_dereference(mp->ports, br);
+ p != NULL;
+ p = mlock_dereference(p->next, br)) {
+ if (p->port != port)
+ continue;
+
+ if (!hlist_unhashed(&p->mglist) &&
+ (timer_pending(&p->timer) ?
+ time_after(p->timer.expires, time) :
+ try_to_del_timer_sync(&p->timer) >= 0)) {
+ mod_timer(&p->timer, time);
+ }
+
+ break;
+ }
+ }
+
if (port && (port->flags & BR_MULTICAST_FAST_LEAVE)) {
struct net_bridge_port_group __rcu **pp;
@@ -1262,7 +1357,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
call_rcu_bh(&p->rcu, br_multicast_free_pg);
br_mdb_notify(br->dev, port, group, RTM_DELMDB);
- if (!mp->ports && !mp->mglist &&
+ if (!mp->ports && !mp->mglist && mp->timer_armed &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
}
@@ -1274,32 +1369,13 @@ static void br_multicast_leave_group(struct net_bridge *br,
br->multicast_last_member_interval;
if (!port) {
- if (mp->mglist &&
+ if (mp->mglist && mp->timer_armed &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, time) :
try_to_del_timer_sync(&mp->timer) >= 0)) {
mod_timer(&mp->timer, time);
}
-
- goto out;
- }
-
- for (p = mlock_dereference(mp->ports, br);
- p != NULL;
- p = mlock_dereference(p->next, br)) {
- if (p->port != port)
- continue;
-
- if (!hlist_unhashed(&p->mglist) &&
- (timer_pending(&p->timer) ?
- time_after(p->timer.expires, time) :
- try_to_del_timer_sync(&p->timer) >= 0)) {
- mod_timer(&p->timer, time);
- }
-
- break;
}
-
out:
spin_unlock(&br->multicast_lock);
}
@@ -1310,6 +1386,8 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
__u16 vid)
{
struct br_ip br_group;
+ struct bridge_mcast_query *query = port ? &port->ip4_query :
+ &br->ip4_query;
if (ipv4_is_local_multicast(group))
return;
@@ -1318,7 +1396,7 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
br_group.proto = htons(ETH_P_IP);
br_group.vid = vid;
- br_multicast_leave_group(br, port, &br_group);
+ br_multicast_leave_group(br, port, &br_group, &br->ip4_querier, query);
}
#if IS_ENABLED(CONFIG_IPV6)
@@ -1328,6 +1406,9 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
__u16 vid)
{
struct br_ip br_group;
+ struct bridge_mcast_query *query = port ? &port->ip6_query :
+ &br->ip6_query;
+
if (!ipv6_is_transient_multicast(group))
return;
@@ -1336,7 +1417,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
br_group.proto = htons(ETH_P_IPV6);
br_group.vid = vid;
- br_multicast_leave_group(br, port, &br_group);
+ br_multicast_leave_group(br, port, &br_group, &br->ip6_querier, query);
}
#endif
@@ -1598,19 +1679,32 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
return 0;
}
-static void br_multicast_query_expired(unsigned long data)
+static void br_multicast_query_expired(struct net_bridge *br,
+ struct bridge_mcast_query *query)
+{
+ spin_lock(&br->multicast_lock);
+ if (query->startup_sent < br->multicast_startup_query_count)
+ query->startup_sent++;
+
+ br_multicast_send_query(br, NULL, query);
+ spin_unlock(&br->multicast_lock);
+}
+
+static void br_ip4_multicast_query_expired(unsigned long data)
{
struct net_bridge *br = (void *)data;
- spin_lock(&br->multicast_lock);
- if (br->multicast_startup_queries_sent <
- br->multicast_startup_query_count)
- br->multicast_startup_queries_sent++;
+ br_multicast_query_expired(br, &br->ip4_query);
+}
- br_multicast_send_query(br, NULL, br->multicast_startup_queries_sent);
+#if IS_ENABLED(CONFIG_IPV6)
+static void br_ip6_multicast_query_expired(unsigned long data)
+{
+ struct net_bridge *br = (void *)data;
- spin_unlock(&br->multicast_lock);
+ br_multicast_query_expired(br, &br->ip6_query);
}
+#endif
void br_multicast_init(struct net_bridge *br)
{
@@ -1619,6 +1713,7 @@ void br_multicast_init(struct net_bridge *br)
br->multicast_router = 1;
br->multicast_querier = 0;
+ br->multicast_query_use_ifaddr = 0;
br->multicast_last_member_count = 2;
br->multicast_startup_query_count = 2;
@@ -1629,23 +1724,43 @@ void br_multicast_init(struct net_bridge *br)
br->multicast_querier_interval = 255 * HZ;
br->multicast_membership_interval = 260 * HZ;
+ br->ip4_querier.delay_time = 0;
+#if IS_ENABLED(CONFIG_IPV6)
+ br->ip6_querier.delay_time = 0;
+#endif
+
spin_lock_init(&br->multicast_lock);
setup_timer(&br->multicast_router_timer,
br_multicast_local_router_expired, 0);
- setup_timer(&br->multicast_querier_timer,
- br_multicast_querier_expired, (unsigned long)br);
- setup_timer(&br->multicast_query_timer, br_multicast_query_expired,
+ setup_timer(&br->ip4_querier.timer, br_ip4_multicast_querier_expired,
+ (unsigned long)br);
+ setup_timer(&br->ip4_query.timer, br_ip4_multicast_query_expired,
(unsigned long)br);
+#if IS_ENABLED(CONFIG_IPV6)
+ setup_timer(&br->ip6_querier.timer, br_ip6_multicast_querier_expired,
+ (unsigned long)br);
+ setup_timer(&br->ip6_query.timer, br_ip6_multicast_query_expired,
+ (unsigned long)br);
+#endif
}
-void br_multicast_open(struct net_bridge *br)
+static void __br_multicast_open(struct net_bridge *br,
+ struct bridge_mcast_query *query)
{
- br->multicast_startup_queries_sent = 0;
+ query->startup_sent = 0;
if (br->multicast_disabled)
return;
- mod_timer(&br->multicast_query_timer, jiffies);
+ mod_timer(&query->timer, jiffies);
+}
+
+void br_multicast_open(struct net_bridge *br)
+{
+ __br_multicast_open(br, &br->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+ __br_multicast_open(br, &br->ip6_query);
+#endif
}
void br_multicast_stop(struct net_bridge *br)
@@ -1657,8 +1772,12 @@ void br_multicast_stop(struct net_bridge *br)
int i;
del_timer_sync(&br->multicast_router_timer);
- del_timer_sync(&br->multicast_querier_timer);
- del_timer_sync(&br->multicast_query_timer);
+ del_timer_sync(&br->ip4_querier.timer);
+ del_timer_sync(&br->ip4_query.timer);
+#if IS_ENABLED(CONFIG_IPV6)
+ del_timer_sync(&br->ip6_querier.timer);
+ del_timer_sync(&br->ip6_query.timer);
+#endif
spin_lock_bh(&br->multicast_lock);
mdb = mlock_dereference(br->mdb, br);
@@ -1672,6 +1791,7 @@ void br_multicast_stop(struct net_bridge *br)
hlist_for_each_entry_safe(mp, n, &mdb->mhash[i],
hlist[ver]) {
del_timer(&mp->timer);
+ mp->timer_armed = false;
call_rcu_bh(&mp->rcu, br_multicast_free_group);
}
}
@@ -1760,18 +1880,24 @@ unlock:
return err;
}
-static void br_multicast_start_querier(struct net_bridge *br)
+static void br_multicast_start_querier(struct net_bridge *br,
+ struct bridge_mcast_query *query)
{
struct net_bridge_port *port;
- br_multicast_open(br);
+ __br_multicast_open(br, query);
list_for_each_entry(port, &br->port_list, list) {
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
continue;
- __br_multicast_enable_port(port);
+ if (query == &br->ip4_query)
+ br_multicast_enable(&port->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+ else
+ br_multicast_enable(&port->ip6_query);
+#endif
}
}
@@ -1806,7 +1932,10 @@ rollback:
goto rollback;
}
- br_multicast_start_querier(br);
+ br_multicast_start_querier(br, &br->ip4_query);
+#if IS_ENABLED(CONFIG_IPV6)
+ br_multicast_start_querier(br, &br->ip6_query);
+#endif
unlock:
spin_unlock_bh(&br->multicast_lock);
@@ -1816,6 +1945,8 @@ unlock:
int br_multicast_set_querier(struct net_bridge *br, unsigned long val)
{
+ unsigned long max_delay;
+
val = !!val;
spin_lock_bh(&br->multicast_lock);
@@ -1823,8 +1954,22 @@ int br_multicast_set_querier(struct net_bridge *br, unsigned long val)
goto unlock;
br->multicast_querier = val;
- if (val)
- br_multicast_start_querier(br);
+ if (!val)
+ goto unlock;
+
+ max_delay = br->multicast_query_response_interval;
+
+ if (!timer_pending(&br->ip4_querier.timer))
+ br->ip4_querier.delay_time = jiffies + max_delay;
+
+ br_multicast_start_querier(br, &br->ip4_query);
+
+#if IS_ENABLED(CONFIG_IPV6)
+ if (!timer_pending(&br->ip6_querier.timer))
+ br->ip6_querier.delay_time = jiffies + max_delay;
+
+ br_multicast_start_querier(br, &br->ip6_query);
+#endif
unlock:
spin_unlock_bh(&br->multicast_lock);
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 1ed75bfd8d1d..f87736270eaa 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -992,7 +992,7 @@ static struct nf_hook_ops br_nf_ops[] __read_mostly = {
#ifdef CONFIG_SYSCTL
static
-int brnf_sysctl_call_tables(ctl_table * ctl, int write,
+int brnf_sysctl_call_tables(struct ctl_table *ctl, int write,
void __user * buffer, size_t * lenp, loff_t * ppos)
{
int ret;
@@ -1004,7 +1004,7 @@ int brnf_sysctl_call_tables(ctl_table * ctl, int write,
return ret;
}
-static ctl_table brnf_table[] = {
+static struct ctl_table brnf_table[] = {
{
.procname = "bridge-nf-call-arptables",
.data = &brnf_call_arptables,
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 8e3abf564798..b9259efa636e 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -30,6 +30,8 @@ static inline size_t br_port_info_size(void)
+ nla_total_size(1) /* IFLA_BRPORT_GUARD */
+ nla_total_size(1) /* IFLA_BRPORT_PROTECT */
+ nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
+ + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
+ + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
+ 0;
}
@@ -56,7 +58,9 @@ static int br_port_fill_attrs(struct sk_buff *skb,
nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
nla_put_u8(skb, IFLA_BRPORT_PROTECT, !!(p->flags & BR_ROOT_BLOCK)) ||
- nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)))
+ nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
+ nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
+ nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, !!(p->flags & BR_FLOOD)))
return -EMSGSIZE;
return 0;
@@ -128,7 +132,7 @@ static int br_fill_ifinfo(struct sk_buff *skb,
else
pv = br_get_vlan_info(br);
- if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN))
+ if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID))
goto done;
af = nla_nest_start(skb, IFLA_AF_SPEC);
@@ -136,7 +140,7 @@ static int br_fill_ifinfo(struct sk_buff *skb,
goto nla_put_failure;
pvid = br_get_pvid(pv);
- for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) {
vinfo.vid = vid;
vinfo.flags = 0;
if (vid == pvid)
@@ -281,6 +285,8 @@ static const struct nla_policy ifla_brport_policy[IFLA_BRPORT_MAX + 1] = {
[IFLA_BRPORT_MODE] = { .type = NLA_U8 },
[IFLA_BRPORT_GUARD] = { .type = NLA_U8 },
[IFLA_BRPORT_PROTECT] = { .type = NLA_U8 },
+ [IFLA_BRPORT_LEARNING] = { .type = NLA_U8 },
+ [IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
};
/* Change the state of the port and notify spanning tree */
@@ -328,6 +334,8 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
+ br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
+ br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
if (tb[IFLA_BRPORT_COST]) {
err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 1644b3e1f947..3a3f371b2841 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -31,7 +31,7 @@ struct notifier_block br_device_notifier = {
*/
static int br_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
{
- struct net_device *dev = ptr;
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
struct net_bridge_port *p;
struct net_bridge *br;
bool changed_addr;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index d2c043a857b6..263ba9034468 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -66,6 +66,20 @@ struct br_ip
__u16 vid;
};
+#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+/* our own querier */
+struct bridge_mcast_query {
+ struct timer_list timer;
+ u32 startup_sent;
+};
+
+/* other querier */
+struct bridge_mcast_querier {
+ struct timer_list timer;
+ unsigned long delay_time;
+};
+#endif
+
struct net_port_vlans {
u16 port_idx;
u16 pvid;
@@ -112,6 +126,7 @@ struct net_bridge_mdb_entry
struct timer_list timer;
struct br_ip addr;
bool mglist;
+ bool timer_armed;
};
struct net_bridge_mdb_htable
@@ -157,12 +172,16 @@ struct net_bridge_port
#define BR_ROOT_BLOCK 0x00000004
#define BR_MULTICAST_FAST_LEAVE 0x00000008
#define BR_ADMIN_COST 0x00000010
+#define BR_LEARNING 0x00000020
+#define BR_FLOOD 0x00000040
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
- u32 multicast_startup_queries_sent;
+ struct bridge_mcast_query ip4_query;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct bridge_mcast_query ip6_query;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
unsigned char multicast_router;
struct timer_list multicast_router_timer;
- struct timer_list multicast_query_timer;
struct hlist_head mglist;
struct hlist_node rlist;
#endif
@@ -249,12 +268,12 @@ struct net_bridge
u8 multicast_disabled:1;
u8 multicast_querier:1;
+ u8 multicast_query_use_ifaddr:1;
u32 hash_elasticity;
u32 hash_max;
u32 multicast_last_member_count;
- u32 multicast_startup_queries_sent;
u32 multicast_startup_query_count;
unsigned long multicast_last_member_interval;
@@ -269,8 +288,12 @@ struct net_bridge
struct hlist_head router_list;
struct timer_list multicast_router_timer;
- struct timer_list multicast_querier_timer;
- struct timer_list multicast_query_timer;
+ struct bridge_mcast_querier ip4_querier;
+ struct bridge_mcast_query ip4_query;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct bridge_mcast_querier ip6_querier;
+ struct bridge_mcast_query ip6_query;
+#endif /* IS_ENABLED(CONFIG_IPV6) */
#endif
struct timer_list hello_timer;
@@ -411,9 +434,10 @@ extern int br_dev_queue_push_xmit(struct sk_buff *skb);
extern void br_forward(const struct net_bridge_port *to,
struct sk_buff *skb, struct sk_buff *skb0);
extern int br_forward_finish(struct sk_buff *skb);
-extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb);
+extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb,
+ bool unicast);
extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
- struct sk_buff *skb2);
+ struct sk_buff *skb2, bool unicast);
/* br_if.c */
extern void br_port_carrier_check(struct net_bridge_port *p);
@@ -496,6 +520,29 @@ static inline bool br_multicast_is_router(struct net_bridge *br)
(br->multicast_router == 1 &&
timer_pending(&br->multicast_router_timer));
}
+
+static inline bool
+__br_multicast_querier_exists(struct net_bridge *br,
+ struct bridge_mcast_querier *querier)
+{
+ return time_is_before_jiffies(querier->delay_time) &&
+ (br->multicast_querier || timer_pending(&querier->timer));
+}
+
+static inline bool br_multicast_querier_exists(struct net_bridge *br,
+ struct ethhdr *eth)
+{
+ switch (eth->h_proto) {
+ case (htons(ETH_P_IP)):
+ return __br_multicast_querier_exists(br, &br->ip4_querier);
+#if IS_ENABLED(CONFIG_IPV6)
+ case (htons(ETH_P_IPV6)):
+ return __br_multicast_querier_exists(br, &br->ip6_querier);
+#endif
+ default:
+ return false;
+ }
+}
#else
static inline int br_multicast_rcv(struct net_bridge *br,
struct net_bridge_port *port,
@@ -552,6 +599,11 @@ static inline bool br_multicast_is_router(struct net_bridge *br)
{
return 0;
}
+static inline bool br_multicast_querier_exists(struct net_bridge *br,
+ struct ethhdr *eth)
+{
+ return false;
+}
static inline void br_mdb_init(void)
{
}
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 8baa9c08e1a4..3b9637fb7939 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -1,5 +1,5 @@
/*
- * Sysfs attributes of bridge ports
+ * Sysfs attributes of bridge
* Linux ethernet bridge
*
* Authors:
@@ -375,6 +375,31 @@ static ssize_t store_multicast_snooping(struct device *d,
static DEVICE_ATTR(multicast_snooping, S_IRUGO | S_IWUSR,
show_multicast_snooping, store_multicast_snooping);
+static ssize_t show_multicast_query_use_ifaddr(struct device *d,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct net_bridge *br = to_bridge(d);
+ return sprintf(buf, "%d\n", br->multicast_query_use_ifaddr);
+}
+
+static int set_query_use_ifaddr(struct net_bridge *br, unsigned long val)
+{
+ br->multicast_query_use_ifaddr = !!val;
+ return 0;
+}
+
+static ssize_t
+store_multicast_query_use_ifaddr(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ return store_bridge_parm(d, buf, len, set_query_use_ifaddr);
+}
+static DEVICE_ATTR(multicast_query_use_ifaddr, S_IRUGO | S_IWUSR,
+ show_multicast_query_use_ifaddr,
+ store_multicast_query_use_ifaddr);
+
static ssize_t show_multicast_querier(struct device *d,
struct device_attribute *attr,
char *buf)
@@ -734,6 +759,7 @@ static struct attribute *bridge_attrs[] = {
&dev_attr_multicast_router.attr,
&dev_attr_multicast_snooping.attr,
&dev_attr_multicast_querier.attr,
+ &dev_attr_multicast_query_use_ifaddr.attr,
&dev_attr_hash_elasticity.attr,
&dev_attr_hash_max.attr,
&dev_attr_multicast_last_member_count.attr,
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index a1ef1b6e14dc..2a2cdb756d51 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -158,6 +158,8 @@ static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush);
BRPORT_ATTR_FLAG(hairpin_mode, BR_HAIRPIN_MODE);
BRPORT_ATTR_FLAG(bpdu_guard, BR_BPDU_GUARD);
BRPORT_ATTR_FLAG(root_block, BR_ROOT_BLOCK);
+BRPORT_ATTR_FLAG(learning, BR_LEARNING);
+BRPORT_ATTR_FLAG(unicast_flood, BR_FLOOD);
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
@@ -195,6 +197,8 @@ static const struct brport_attribute *brport_attrs[] = {
&brport_attr_hairpin_mode,
&brport_attr_bpdu_guard,
&brport_attr_root_block,
+ &brport_attr_learning,
+ &brport_attr_unicast_flood,
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
&brport_attr_multicast_router,
&brport_attr_multicast_fast_leave,
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index bd58b45f5f90..9a9ffe7e4019 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -108,7 +108,7 @@ static int __vlan_del(struct net_port_vlans *v, u16 vid)
clear_bit(vid, v->vlan_bitmap);
v->num_vlans--;
- if (bitmap_empty(v->vlan_bitmap, BR_VLAN_BITMAP_LEN)) {
+ if (bitmap_empty(v->vlan_bitmap, VLAN_N_VID)) {
if (v->port_idx)
rcu_assign_pointer(v->parent.port->vlan_info, NULL);
else
@@ -122,7 +122,7 @@ static void __vlan_flush(struct net_port_vlans *v)
{
smp_wmb();
v->pvid = 0;
- bitmap_zero(v->vlan_bitmap, BR_VLAN_BITMAP_LEN);
+ bitmap_zero(v->vlan_bitmap, VLAN_N_VID);
if (v->port_idx)
rcu_assign_pointer(v->parent.port->vlan_info, NULL);
else
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index df0364aa12d5..518093802d1d 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -271,6 +271,12 @@ static int ebt_ulog_tg_check(const struct xt_tgchk_param *par)
{
struct ebt_ulog_info *uloginfo = par->targinfo;
+ if (!par->net->xt.ebt_ulog_warn_deprecated) {
+ pr_info("ebt_ulog is deprecated and it will be removed soon, "
+ "use ebt_nflog instead\n");
+ par->net->xt.ebt_ulog_warn_deprecated = true;
+ }
+
if (uloginfo->nlgroup > 31)
return -EINVAL;
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 3d110c4fc787..ac7802428384 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1339,7 +1339,7 @@ static inline int ebt_make_matchname(const struct ebt_entry_match *m,
/* ebtables expects 32 bytes long names but xt_match names are 29 bytes
long. Copy 29 bytes and fill remaining bytes with zeroes. */
- strncpy(name, m->u.match->name, sizeof(name));
+ strlcpy(name, m->u.match->name, sizeof(name));
if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
return -EFAULT;
return 0;
@@ -1351,7 +1351,7 @@ static inline int ebt_make_watchername(const struct ebt_entry_watcher *w,
char __user *hlp = ubase + ((char *)w - base);
char name[EBT_FUNCTION_MAXNAMELEN] = {};
- strncpy(name, w->u.watcher->name, sizeof(name));
+ strlcpy(name, w->u.watcher->name, sizeof(name));
if (copy_to_user(hlp , name, EBT_FUNCTION_MAXNAMELEN))
return -EFAULT;
return 0;
@@ -1377,7 +1377,7 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase)
ret = EBT_WATCHER_ITERATE(e, ebt_make_watchername, base, ubase);
if (ret != 0)
return ret;
- strncpy(name, t->u.target->name, sizeof(name));
+ strlcpy(name, t->u.target->name, sizeof(name));
if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
return -EFAULT;
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-09 10:16:57 +0000