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-rw-r--r--net/bridge/br_device.c12
-rw-r--r--net/bridge/br_if.c6
-rw-r--r--net/bridge/br_mdb.c6
-rw-r--r--net/bridge/br_multicast.c17
-rw-r--r--net/bridge/br_notify.c5
-rw-r--r--net/bridge/br_private.h22
6 files changed, 33 insertions, 35 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 89659d4ed1f9..ca04163635da 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -245,22 +245,22 @@ fail:
int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp)
{
struct netpoll *np;
- int err = 0;
+ int err;
+
+ if (!p->br->dev->npinfo)
+ return 0;
np = kzalloc(sizeof(*p->np), gfp);
- err = -ENOMEM;
if (!np)
- goto out;
+ return -ENOMEM;
err = __netpoll_setup(np, p->dev, gfp);
if (err) {
kfree(np);
- goto out;
+ return err;
}
p->np = np;
-
-out:
return err;
}
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 5623be6b9ecd..c41d5fbb91d0 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -363,7 +363,8 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
if (err)
goto err2;
- if (br_netpoll_info(br) && ((err = br_netpoll_enable(p, GFP_KERNEL))))
+ err = br_netpoll_enable(p, GFP_KERNEL);
+ if (err)
goto err3;
err = netdev_master_upper_dev_link(dev, br->dev);
@@ -382,6 +383,9 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
netdev_update_features(br->dev);
+ if (br->dev->needed_headroom < dev->needed_headroom)
+ br->dev->needed_headroom = dev->needed_headroom;
+
spin_lock_bh(&br->lock);
changed_addr = br_stp_recalculate_bridge_id(br);
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 6319c4333c39..85a09bb5ca51 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -9,6 +9,7 @@
#include <net/netlink.h>
#if IS_ENABLED(CONFIG_IPV6)
#include <net/ipv6.h>
+#include <net/addrconf.h>
#endif
#include "br_private.h"
@@ -61,7 +62,8 @@ static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb,
for (i = 0; i < mdb->max; i++) {
struct net_bridge_mdb_entry *mp;
- struct net_bridge_port_group *p, **pp;
+ struct net_bridge_port_group *p;
+ struct net_bridge_port_group __rcu **pp;
struct net_bridge_port *port;
hlist_for_each_entry_rcu(mp, &mdb->mhash[i], hlist[mdb->ver]) {
@@ -253,7 +255,7 @@ static bool is_valid_mdb_entry(struct br_mdb_entry *entry)
return false;
#if IS_ENABLED(CONFIG_IPV6)
} else if (entry->addr.proto == htons(ETH_P_IPV6)) {
- if (!ipv6_is_transient_multicast(&entry->addr.u.ip6))
+ if (ipv6_addr_is_ll_all_nodes(&entry->addr.u.ip6))
return false;
#endif
} else
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index bbcb43582496..d1c578630678 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -29,6 +29,7 @@
#include <net/ipv6.h>
#include <net/mld.h>
#include <net/ip6_checksum.h>
+#include <net/addrconf.h>
#endif
#include "br_private.h"
@@ -724,7 +725,7 @@ static int br_ip6_multicast_add_group(struct net_bridge *br,
{
struct br_ip br_group;
- if (!ipv6_is_transient_multicast(group))
+ if (ipv6_addr_is_ll_all_nodes(group))
return 0;
br_group.u.ip6 = *group;
@@ -1255,7 +1256,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
if (!mld2q->mld2q_nsrcs)
group = &mld2q->mld2q_mca;
- max_delay = max(msecs_to_jiffies(MLDV2_MRC(ntohs(mld2q->mld2q_mrc))), 1UL);
+ max_delay = max(msecs_to_jiffies(mldv2_mrc(mld2q)), 1UL);
}
br_multicast_query_received(br, port, &br->ip6_querier,
@@ -1410,7 +1411,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
&br->ip6_query;
- if (!ipv6_is_transient_multicast(group))
+ if (ipv6_addr_is_ll_all_nodes(group))
return;
br_group.u.ip6 = *group;
@@ -1547,8 +1548,14 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
* - MLD has always Router Alert hop-by-hop option
* - But we do not support jumbrograms.
*/
- if (ip6h->version != 6 ||
- ip6h->nexthdr != IPPROTO_HOPOPTS ||
+ if (ip6h->version != 6)
+ return 0;
+
+ /* Prevent flooding this packet if there is no listener present */
+ if (!ipv6_addr_is_ll_all_nodes(&ip6h->daddr))
+ BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
+
+ if (ip6h->nexthdr != IPPROTO_HOPOPTS ||
ip6h->payload_len == 0)
return 0;
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 3a3f371b2841..2998dd1769a0 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -102,6 +102,11 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
case NETDEV_PRE_TYPE_CHANGE:
/* Forbid underlaying device to change its type. */
return NOTIFY_BAD;
+
+ case NETDEV_RESEND_IGMP:
+ /* Propagate to master device */
+ call_netdevice_notifiers(event, br->dev);
+ break;
}
/* Events that may cause spanning tree to refresh */
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 263ba9034468..598cb0b333c6 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -352,11 +352,6 @@ extern void br_dev_delete(struct net_device *dev, struct list_head *list);
extern netdev_tx_t br_dev_xmit(struct sk_buff *skb,
struct net_device *dev);
#ifdef CONFIG_NET_POLL_CONTROLLER
-static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br)
-{
- return br->dev->npinfo;
-}
-
static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
struct sk_buff *skb)
{
@@ -369,11 +364,6 @@ static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp);
extern void br_netpoll_disable(struct net_bridge_port *p);
#else
-static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br)
-{
- return NULL;
-}
-
static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
struct sk_buff *skb)
{
@@ -494,7 +484,7 @@ extern void br_multicast_free_pg(struct rcu_head *head);
extern struct net_bridge_port_group *br_multicast_new_port_group(
struct net_bridge_port *port,
struct br_ip *group,
- struct net_bridge_port_group *next,
+ struct net_bridge_port_group __rcu *next,
unsigned char state);
extern void br_mdb_init(void);
extern void br_mdb_uninit(void);
@@ -504,16 +494,6 @@ extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
#define mlock_dereference(X, br) \
rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
-#if IS_ENABLED(CONFIG_IPV6)
-#include <net/addrconf.h>
-static inline int ipv6_is_transient_multicast(const struct in6_addr *addr)
-{
- if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr))
- return 1;
- return 0;
-}
-#endif
-
static inline bool br_multicast_is_router(struct net_bridge *br)
{
return br->multicast_router == 2 ||
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-14 04:09:58 +0000