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-rw-r--r--include/linux/netdevice.h4
-rw-r--r--net/8021q/vlan_dev.c7
-rw-r--r--net/core/dev.c96
-rw-r--r--net/core/dev_mcast.c39
4 files changed, 110 insertions, 36 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b0813c3286b..047d432bde5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1414,12 +1414,16 @@ extern void dev_set_rx_mode(struct net_device *dev);
extern void __dev_set_rx_mode(struct net_device *dev);
extern int dev_unicast_delete(struct net_device *dev, void *addr, int alen);
extern int dev_unicast_add(struct net_device *dev, void *addr, int alen);
+extern int dev_unicast_sync(struct net_device *to, struct net_device *from);
+extern void dev_unicast_unsync(struct net_device *to, struct net_device *from);
extern int dev_mc_delete(struct net_device *dev, void *addr, int alen, int all);
extern int dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly);
extern int dev_mc_sync(struct net_device *to, struct net_device *from);
extern void dev_mc_unsync(struct net_device *to, struct net_device *from);
extern int __dev_addr_delete(struct dev_addr_list **list, int *count, void *addr, int alen, int all);
extern int __dev_addr_add(struct dev_addr_list **list, int *count, void *addr, int alen, int newonly);
+extern int __dev_addr_sync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count);
+extern void __dev_addr_unsync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count);
extern void dev_set_promiscuity(struct net_device *dev, int inc);
extern void dev_set_allmulti(struct net_device *dev, int inc);
extern void netdev_state_change(struct net_device *dev);
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 8059fa42b08..77f04e49a1a 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -563,6 +563,7 @@ static int vlan_dev_stop(struct net_device *dev)
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
dev_mc_unsync(real_dev, dev);
+ dev_unicast_unsync(real_dev, dev);
if (dev->flags & IFF_ALLMULTI)
dev_set_allmulti(real_dev, -1);
if (dev->flags & IFF_PROMISC)
@@ -634,9 +635,10 @@ static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
}
-static void vlan_dev_set_multicast_list(struct net_device *vlan_dev)
+static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
{
dev_mc_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
+ dev_unicast_sync(vlan_dev_info(vlan_dev)->real_dev, vlan_dev);
}
/*
@@ -702,7 +704,8 @@ void vlan_setup(struct net_device *dev)
dev->open = vlan_dev_open;
dev->stop = vlan_dev_stop;
dev->set_mac_address = vlan_dev_set_mac_address;
- dev->set_multicast_list = vlan_dev_set_multicast_list;
+ dev->set_rx_mode = vlan_dev_set_rx_mode;
+ dev->set_multicast_list = vlan_dev_set_rx_mode;
dev->change_rx_flags = vlan_dev_change_rx_flags;
dev->do_ioctl = vlan_dev_ioctl;
dev->destructor = free_netdev;
diff --git a/net/core/dev.c b/net/core/dev.c
index c9c593e1ba6..edaff2720e1 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2962,6 +2962,102 @@ int dev_unicast_add(struct net_device *dev, void *addr, int alen)
}
EXPORT_SYMBOL(dev_unicast_add);
+int __dev_addr_sync(struct dev_addr_list **to, int *to_count,
+ struct dev_addr_list **from, int *from_count)
+{
+ struct dev_addr_list *da, *next;
+ int err = 0;
+
+ da = *from;
+ while (da != NULL) {
+ next = da->next;
+ if (!da->da_synced) {
+ err = __dev_addr_add(to, to_count,
+ da->da_addr, da->da_addrlen, 0);
+ if (err < 0)
+ break;
+ da->da_synced = 1;
+ da->da_users++;
+ } else if (da->da_users == 1) {
+ __dev_addr_delete(to, to_count,
+ da->da_addr, da->da_addrlen, 0);
+ __dev_addr_delete(from, from_count,
+ da->da_addr, da->da_addrlen, 0);
+ }
+ da = next;
+ }
+ return err;
+}
+
+void __dev_addr_unsync(struct dev_addr_list **to, int *to_count,
+ struct dev_addr_list **from, int *from_count)
+{
+ struct dev_addr_list *da, *next;
+
+ da = *from;
+ while (da != NULL) {
+ next = da->next;
+ if (da->da_synced) {
+ __dev_addr_delete(to, to_count,
+ da->da_addr, da->da_addrlen, 0);
+ da->da_synced = 0;
+ __dev_addr_delete(from, from_count,
+ da->da_addr, da->da_addrlen, 0);
+ }
+ da = next;
+ }
+}
+
+/**
+ * dev_unicast_sync - Synchronize device's unicast list to another device
+ * @to: destination device
+ * @from: source device
+ *
+ * Add newly added addresses to the destination device and release
+ * addresses that have no users left. The source device must be
+ * locked by netif_tx_lock_bh.
+ *
+ * This function is intended to be called from the dev->set_rx_mode
+ * function of layered software devices.
+ */
+int dev_unicast_sync(struct net_device *to, struct net_device *from)
+{
+ int err = 0;
+
+ netif_tx_lock_bh(to);
+ err = __dev_addr_sync(&to->uc_list, &to->uc_count,
+ &from->uc_list, &from->uc_count);
+ if (!err)
+ __dev_set_rx_mode(to);
+ netif_tx_unlock_bh(to);
+ return err;
+}
+EXPORT_SYMBOL(dev_unicast_sync);
+
+/**
+ * dev_unicast_unsync - Remove synchronized addresses from the destination
+ * device
+ * @to: destination device
+ * @from: source device
+ *
+ * Remove all addresses that were added to the destination device by
+ * dev_unicast_sync(). This function is intended to be called from the
+ * dev->stop function of layered software devices.
+ */
+void dev_unicast_unsync(struct net_device *to, struct net_device *from)
+{
+ netif_tx_lock_bh(from);
+ netif_tx_lock_bh(to);
+
+ __dev_addr_unsync(&to->uc_list, &to->uc_count,
+ &from->uc_list, &from->uc_count);
+ __dev_set_rx_mode(to);
+
+ netif_tx_unlock_bh(to);
+ netif_tx_unlock_bh(from);
+}
+EXPORT_SYMBOL(dev_unicast_unsync);
+
static void __dev_addr_discard(struct dev_addr_list **list)
{
struct dev_addr_list *tmp;
diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c
index cadbfbf7e7f..cec582563e0 100644
--- a/net/core/dev_mcast.c
+++ b/net/core/dev_mcast.c
@@ -113,32 +113,15 @@ int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl)
* locked by netif_tx_lock_bh.
*
* This function is intended to be called from the dev->set_multicast_list
- * function of layered software devices.
+ * or dev->set_rx_mode function of layered software devices.
*/
int dev_mc_sync(struct net_device *to, struct net_device *from)
{
- struct dev_addr_list *da, *next;
int err = 0;
netif_tx_lock_bh(to);
- da = from->mc_list;
- while (da != NULL) {
- next = da->next;
- if (!da->da_synced) {
- err = __dev_addr_add(&to->mc_list, &to->mc_count,
- da->da_addr, da->da_addrlen, 0);
- if (err < 0)
- break;
- da->da_synced = 1;
- da->da_users++;
- } else if (da->da_users == 1) {
- __dev_addr_delete(&to->mc_list, &to->mc_count,
- da->da_addr, da->da_addrlen, 0);
- __dev_addr_delete(&from->mc_list, &from->mc_count,
- da->da_addr, da->da_addrlen, 0);
- }
- da = next;
- }
+ err = __dev_addr_sync(&to->mc_list, &to->mc_count,
+ &from->mc_list, &from->mc_count);
if (!err)
__dev_set_rx_mode(to);
netif_tx_unlock_bh(to);
@@ -160,23 +143,11 @@ EXPORT_SYMBOL(dev_mc_sync);
*/
void dev_mc_unsync(struct net_device *to, struct net_device *from)
{
- struct dev_addr_list *da, *next;
-
netif_tx_lock_bh(from);
netif_tx_lock_bh(to);
- da = from->mc_list;
- while (da != NULL) {
- next = da->next;
- if (da->da_synced) {
- __dev_addr_delete(&to->mc_list, &to->mc_count,
- da->da_addr, da->da_addrlen, 0);
- da->da_synced = 0;
- __dev_addr_delete(&from->mc_list, &from->mc_count,
- da->da_addr, da->da_addrlen, 0);
- }
- da = next;
- }
+ __dev_addr_unsync(&to->mc_list, &to->mc_count,
+ &from->mc_list, &from->mc_count);
__dev_set_rx_mode(to);
netif_tx_unlock_bh(to);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 21:27:35 +0000