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authorJiri Pirko <jpirko@redhat.com>2010-04-01 21:22:57 +0000
committerDavid S. Miller <davem@davemloft.net>2010-04-03 14:22:15 -0700
commit22bedad3ce112d5ca1eaf043d4990fa2ed698c87 (patch)
treeb6fba5688d48b1396f01d13ee53610dea7749c15 /net
parenta748ee2426817a95b1f03012d8f339c45c722ae1 (diff)
downloadlinux-stericsson-22bedad3ce112d5ca1eaf043d4990fa2ed698c87.tar.gz
net: convert multicast list to list_head
Converts the list and the core manipulating with it to be the same as uc_list. +uses two functions for adding/removing mc address (normal and "global" variant) instead of a function parameter. +removes dev_mcast.c completely. +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for manipulation with lists on a sandbox (used in bonding and 80211 drivers) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/802/garp.c4
-rw-r--r--net/appletalk/ddp.c2
-rw-r--r--net/bluetooth/bnep/netdev.c8
-rw-r--r--net/core/Makefile5
-rw-r--r--net/core/dev.c145
-rw-r--r--net/core/dev_addr_lists.c305
-rw-r--r--net/core/dev_mcast.c232
-rw-r--r--net/decnet/dn_dev.c12
-rw-r--r--net/ipv4/igmp.c4
-rw-r--r--net/ipv4/netfilter/ipt_CLUSTERIP.c4
-rw-r--r--net/ipv6/mcast.c4
-rw-r--r--net/mac80211/driver-ops.h8
-rw-r--r--net/mac80211/ieee80211_i.h3
-rw-r--r--net/mac80211/iface.c6
-rw-r--r--net/mac80211/main.c2
-rw-r--r--net/packet/af_packet.c4
16 files changed, 319 insertions, 429 deletions
diff --git a/net/802/garp.c b/net/802/garp.c
index 1dcb0660c49d..78cff9ec2cb4 100644
--- a/net/802/garp.c
+++ b/net/802/garp.c
@@ -575,7 +575,7 @@ int garp_init_applicant(struct net_device *dev, struct garp_application *appl)
if (!app)
goto err2;
- err = dev_mc_add(dev, appl->proto.group_address, ETH_ALEN, 0);
+ err = dev_mc_add(dev, appl->proto.group_address);
if (err < 0)
goto err3;
@@ -615,7 +615,7 @@ void garp_uninit_applicant(struct net_device *dev, struct garp_application *appl
garp_pdu_queue(app);
garp_queue_xmit(app);
- dev_mc_delete(dev, appl->proto.group_address, ETH_ALEN, 0);
+ dev_mc_del(dev, appl->proto.group_address);
kfree(app);
garp_release_port(dev);
}
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 9fc4da56fb1d..1d15a60b23af 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -781,7 +781,7 @@ static int atif_ioctl(int cmd, void __user *arg)
atrtr_create(&rtdef, dev);
}
}
- dev_mc_add(dev, aarp_mcast, 6, 1);
+ dev_mc_add_global(dev, aarp_mcast);
return 0;
case SIOCGIFADDR:
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index 326ab453edb7..260a9507e542 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -87,7 +87,7 @@ static void bnep_net_set_mc_list(struct net_device *dev)
memcpy(__skb_put(skb, ETH_ALEN), dev->broadcast, ETH_ALEN);
r->len = htons(ETH_ALEN * 2);
} else {
- struct dev_mc_list *dmi;
+ struct netdev_hw_addr *ha;
int i, len = skb->len;
if (dev->flags & IFF_BROADCAST) {
@@ -98,11 +98,11 @@ static void bnep_net_set_mc_list(struct net_device *dev)
/* FIXME: We should group addresses here. */
i = 0;
- netdev_for_each_mc_addr(dmi, dev) {
+ netdev_for_each_mc_addr(ha, dev) {
if (i == BNEP_MAX_MULTICAST_FILTERS)
break;
- memcpy(__skb_put(skb, ETH_ALEN), dmi->dmi_addr, ETH_ALEN);
- memcpy(__skb_put(skb, ETH_ALEN), dmi->dmi_addr, ETH_ALEN);
+ memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
+ memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
}
r->len = htons(skb->len - len);
}
diff --git a/net/core/Makefile b/net/core/Makefile
index 0a899f1aadb9..51c3eec850ef 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -7,9 +7,8 @@ obj-y := sock.o request_sock.o skbuff.o iovec.o datagram.o stream.o scm.o \
obj-$(CONFIG_SYSCTL) += sysctl_net_core.o
-obj-y += dev.o ethtool.o dev_mcast.o dst.o netevent.o \
- neighbour.o rtnetlink.o utils.o link_watch.o filter.o \
- dev_addr_lists.o
+obj-y += dev.o ethtool.o dev_addr_lists.o dst.o netevent.o \
+ neighbour.o rtnetlink.o utils.o link_watch.o filter.o
obj-$(CONFIG_XFRM) += flow.o
obj-y += net-sysfs.o
diff --git a/net/core/dev.c b/net/core/dev.c
index 949c62dba719..2a9b7dd0bb6e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3968,140 +3968,6 @@ void dev_set_rx_mode(struct net_device *dev)
netif_addr_unlock_bh(dev);
}
-/* multicast addresses handling functions */
-
-int __dev_addr_delete(struct dev_addr_list **list, int *count,
- void *addr, int alen, int glbl)
-{
- struct dev_addr_list *da;
-
- for (; (da = *list) != NULL; list = &da->next) {
- if (memcmp(da->da_addr, addr, da->da_addrlen) == 0 &&
- alen == da->da_addrlen) {
- if (glbl) {
- int old_glbl = da->da_gusers;
- da->da_gusers = 0;
- if (old_glbl == 0)
- break;
- }
- if (--da->da_users)
- return 0;
-
- *list = da->next;
- kfree(da);
- (*count)--;
- return 0;
- }
- }
- return -ENOENT;
-}
-
-int __dev_addr_add(struct dev_addr_list **list, int *count,
- void *addr, int alen, int glbl)
-{
- struct dev_addr_list *da;
-
- for (da = *list; da != NULL; da = da->next) {
- if (memcmp(da->da_addr, addr, da->da_addrlen) == 0 &&
- da->da_addrlen == alen) {
- if (glbl) {
- int old_glbl = da->da_gusers;
- da->da_gusers = 1;
- if (old_glbl)
- return 0;
- }
- da->da_users++;
- return 0;
- }
- }
-
- da = kzalloc(sizeof(*da), GFP_ATOMIC);
- if (da == NULL)
- return -ENOMEM;
- memcpy(da->da_addr, addr, alen);
- da->da_addrlen = alen;
- da->da_users = 1;
- da->da_gusers = glbl ? 1 : 0;
- da->next = *list;
- *list = da;
- (*count)++;
- return 0;
-}
-
-
-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;
-}
-EXPORT_SYMBOL_GPL(__dev_addr_sync);
-
-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;
- }
-}
-EXPORT_SYMBOL_GPL(__dev_addr_unsync);
-
-static void __dev_addr_discard(struct dev_addr_list **list)
-{
- struct dev_addr_list *tmp;
-
- while (*list != NULL) {
- tmp = *list;
- *list = tmp->next;
- if (tmp->da_users > tmp->da_gusers)
- printk("__dev_addr_discard: address leakage! "
- "da_users=%d\n", tmp->da_users);
- kfree(tmp);
- }
-}
-
-void dev_addr_discard(struct net_device *dev)
-{
- netif_addr_lock_bh(dev);
-
- __dev_addr_discard(&dev->mc_list);
- netdev_mc_count(dev) = 0;
-
- netif_addr_unlock_bh(dev);
-}
-EXPORT_SYMBOL(dev_addr_discard);
-
/**
* dev_get_flags - get flags reported to userspace
* @dev: device
@@ -4412,8 +4278,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
return -EINVAL;
if (!netif_device_present(dev))
return -ENODEV;
- return dev_mc_add(dev, ifr->ifr_hwaddr.sa_data,
- dev->addr_len, 1);
+ return dev_mc_add_global(dev, ifr->ifr_hwaddr.sa_data);
case SIOCDELMULTI:
if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) ||
@@ -4421,8 +4286,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
return -EINVAL;
if (!netif_device_present(dev))
return -ENODEV;
- return dev_mc_delete(dev, ifr->ifr_hwaddr.sa_data,
- dev->addr_len, 1);
+ return dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data);
case SIOCSIFTXQLEN:
if (ifr->ifr_qlen < 0)
@@ -4730,7 +4594,7 @@ static void rollback_registered_many(struct list_head *head)
* Flush the unicast and multicast chains
*/
dev_uc_flush(dev);
- dev_addr_discard(dev);
+ dev_mc_flush(dev);
if (dev->netdev_ops->ndo_uninit)
dev->netdev_ops->ndo_uninit(dev);
@@ -5310,6 +5174,7 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
if (dev_addr_init(dev))
goto free_rx;
+ dev_mc_init(dev);
dev_uc_init(dev);
dev_net_set(dev, &init_net);
@@ -5545,7 +5410,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
* Flush the unicast and multicast chains
*/
dev_uc_flush(dev);
- dev_addr_discard(dev);
+ dev_mc_flush(dev);
netdev_unregister_kobject(dev);
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 7e52b6d18add..37d5975e18a3 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -19,8 +19,9 @@
* General list handling functions
*/
-static int __hw_addr_add(struct netdev_hw_addr_list *list, unsigned char *addr,
- int addr_len, unsigned char addr_type)
+static int __hw_addr_add_ex(struct netdev_hw_addr_list *list,
+ unsigned char *addr, int addr_len,
+ unsigned char addr_type, bool global)
{
struct netdev_hw_addr *ha;
int alloc_size;
@@ -31,6 +32,13 @@ static int __hw_addr_add(struct netdev_hw_addr_list *list, unsigned char *addr,
list_for_each_entry(ha, &list->list, list) {
if (!memcmp(ha->addr, addr, addr_len) &&
ha->type == addr_type) {
+ if (global) {
+ /* check if addr is already used as global */
+ if (ha->global_use)
+ return 0;
+ else
+ ha->global_use = true;
+ }
ha->refcount++;
return 0;
}
@@ -46,12 +54,19 @@ static int __hw_addr_add(struct netdev_hw_addr_list *list, unsigned char *addr,
memcpy(ha->addr, addr, addr_len);
ha->type = addr_type;
ha->refcount = 1;
+ ha->global_use = global;
ha->synced = false;
list_add_tail_rcu(&ha->list, &list->list);
list->count++;
return 0;
}
+static int __hw_addr_add(struct netdev_hw_addr_list *list, unsigned char *addr,
+ int addr_len, unsigned char addr_type)
+{
+ return __hw_addr_add_ex(list, addr, addr_len, addr_type, false);
+}
+
static void ha_rcu_free(struct rcu_head *head)
{
struct netdev_hw_addr *ha;
@@ -60,14 +75,21 @@ static void ha_rcu_free(struct rcu_head *head)
kfree(ha);
}
-static int __hw_addr_del(struct netdev_hw_addr_list *list, unsigned char *addr,
- int addr_len, unsigned char addr_type)
+static int __hw_addr_del_ex(struct netdev_hw_addr_list *list,
+ unsigned char *addr, int addr_len,
+ unsigned char addr_type, bool global)
{
struct netdev_hw_addr *ha;
list_for_each_entry(ha, &list->list, list) {
if (!memcmp(ha->addr, addr, addr_len) &&
(ha->type == addr_type || !addr_type)) {
+ if (global) {
+ if (!ha->global_use)
+ break;
+ else
+ ha->global_use = false;
+ }
if (--ha->refcount)
return 0;
list_del_rcu(&ha->list);
@@ -79,10 +101,15 @@ static int __hw_addr_del(struct netdev_hw_addr_list *list, unsigned char *addr,
return -ENOENT;
}
-static int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len,
- unsigned char addr_type)
+static int __hw_addr_del(struct netdev_hw_addr_list *list, unsigned char *addr,
+ int addr_len, unsigned char addr_type)
+{
+ return __hw_addr_del_ex(list, addr, addr_len, addr_type, false);
+}
+
+int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len, unsigned char addr_type)
{
int err;
struct netdev_hw_addr *ha, *ha2;
@@ -105,11 +132,11 @@ unroll:
}
return err;
}
+EXPORT_SYMBOL(__hw_addr_add_multiple);
-static void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len,
- unsigned char addr_type)
+void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len, unsigned char addr_type)
{
struct netdev_hw_addr *ha;
unsigned char type;
@@ -119,10 +146,11 @@ static void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
__hw_addr_del(to_list, ha->addr, addr_len, addr_type);
}
}
+EXPORT_SYMBOL(__hw_addr_del_multiple);
-static int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len)
+int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len)
{
int err = 0;
struct netdev_hw_addr *ha, *tmp;
@@ -142,10 +170,11 @@ static int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
}
return err;
}
+EXPORT_SYMBOL(__hw_addr_sync);
-static void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len)
+void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len)
{
struct netdev_hw_addr *ha, *tmp;
@@ -159,8 +188,9 @@ static void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
}
}
}
+EXPORT_SYMBOL(__hw_addr_unsync);
-static void __hw_addr_flush(struct netdev_hw_addr_list *list)
+void __hw_addr_flush(struct netdev_hw_addr_list *list)
{
struct netdev_hw_addr *ha, *tmp;
@@ -170,12 +200,14 @@ static void __hw_addr_flush(struct netdev_hw_addr_list *list)
}
list->count = 0;
}
+EXPORT_SYMBOL(__hw_addr_flush);
-static void __hw_addr_init(struct netdev_hw_addr_list *list)
+void __hw_addr_init(struct netdev_hw_addr_list *list)
{
INIT_LIST_HEAD(&list->list);
list->count = 0;
}
+EXPORT_SYMBOL(__hw_addr_init);
/*
* Device addresses handling functions
@@ -475,4 +507,235 @@ EXPORT_SYMBOL(dev_uc_init);
* Multicast list handling functions
*/
-/* To be filled here */
+static int __dev_mc_add(struct net_device *dev, unsigned char *addr,
+ bool global)
+{
+ int err;
+
+ netif_addr_lock_bh(dev);
+ err = __hw_addr_add_ex(&dev->mc, addr, dev->addr_len,
+ NETDEV_HW_ADDR_T_MULTICAST, global);
+ if (!err)
+ __dev_set_rx_mode(dev);
+ netif_addr_unlock_bh(dev);
+ return err;
+}
+/**
+ * dev_mc_add - Add a multicast address
+ * @dev: device
+ * @addr: address to add
+ *
+ * Add a multicast address to the device or increase
+ * the reference count if it already exists.
+ */
+int dev_mc_add(struct net_device *dev, unsigned char *addr)
+{
+ return __dev_mc_add(dev, addr, false);
+}
+EXPORT_SYMBOL(dev_mc_add);
+
+/**
+ * dev_mc_add_global - Add a global multicast address
+ * @dev: device
+ * @addr: address to add
+ *
+ * Add a global multicast address to the device.
+ */
+int dev_mc_add_global(struct net_device *dev, unsigned char *addr)
+{
+ return __dev_mc_add(dev, addr, true);
+}
+EXPORT_SYMBOL(dev_mc_add_global);
+
+static int __dev_mc_del(struct net_device *dev, unsigned char *addr,
+ bool global)
+{
+ int err;
+
+ netif_addr_lock_bh(dev);
+ err = __hw_addr_del_ex(&dev->mc, addr, dev->addr_len,
+ NETDEV_HW_ADDR_T_MULTICAST, global);
+ if (!err)
+ __dev_set_rx_mode(dev);
+ netif_addr_unlock_bh(dev);
+ return err;
+}
+
+/**
+ * dev_mc_del - Delete a multicast address.
+ * @dev: device
+ * @addr: address to delete
+ *
+ * Release reference to a multicast address and remove it
+ * from the device if the reference count drops to zero.
+ */
+int dev_mc_del(struct net_device *dev, unsigned char *addr)
+{
+ return __dev_mc_del(dev, addr, false);
+}
+EXPORT_SYMBOL(dev_mc_del);
+
+/**
+ * dev_mc_del_global - Delete a global multicast address.
+ * @dev: device
+ * @addr: address to delete
+ *
+ * Release reference to a multicast address and remove it
+ * from the device if the reference count drops to zero.
+ */
+int dev_mc_del_global(struct net_device *dev, unsigned char *addr)
+{
+ return __dev_mc_del(dev, addr, true);
+}
+EXPORT_SYMBOL(dev_mc_del_global);
+
+/**
+ * dev_mc_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_multicast_list
+ * or dev->set_rx_mode function of layered software devices.
+ */
+int dev_mc_sync(struct net_device *to, struct net_device *from)
+{
+ int err = 0;
+
+ if (to->addr_len != from->addr_len)
+ return -EINVAL;
+
+ netif_addr_lock_bh(to);
+ err = __hw_addr_sync(&to->mc, &from->mc, to->addr_len);
+ if (!err)
+ __dev_set_rx_mode(to);
+ netif_addr_unlock_bh(to);
+ return err;
+}
+EXPORT_SYMBOL(dev_mc_sync);
+
+/**
+ * dev_mc_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_mc_sync(). This function is intended to be called from the
+ * dev->stop function of layered software devices.
+ */
+void dev_mc_unsync(struct net_device *to, struct net_device *from)
+{
+ if (to->addr_len != from->addr_len)
+ return;
+
+ netif_addr_lock_bh(from);
+ netif_addr_lock(to);
+ __hw_addr_unsync(&to->mc, &from->mc, to->addr_len);
+ __dev_set_rx_mode(to);
+ netif_addr_unlock(to);
+ netif_addr_unlock_bh(from);
+}
+EXPORT_SYMBOL(dev_mc_unsync);
+
+/**
+ * dev_mc_flush - Flush multicast addresses
+ * @dev: device
+ *
+ * Flush multicast addresses.
+ */
+void dev_mc_flush(struct net_device *dev)
+{
+ netif_addr_lock_bh(dev);
+ __hw_addr_flush(&dev->mc);
+ netif_addr_unlock_bh(dev);
+}
+EXPORT_SYMBOL(dev_mc_flush);
+
+/**
+ * dev_mc_flush - Init multicast address list
+ * @dev: device
+ *
+ * Init multicast address list.
+ */
+void dev_mc_init(struct net_device *dev)
+{
+ __hw_addr_init(&dev->mc);
+}
+EXPORT_SYMBOL(dev_mc_init);
+
+#ifdef CONFIG_PROC_FS
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+static int dev_mc_seq_show(struct seq_file *seq, void *v)
+{
+ struct netdev_hw_addr *ha;
+ struct net_device *dev = v;
+
+ if (v == SEQ_START_TOKEN)
+ return 0;
+
+ netif_addr_lock_bh(dev);
+ netdev_for_each_mc_addr(ha, dev) {
+ int i;
+
+ seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
+ dev->name, ha->refcount, ha->global_use);
+
+ for (i = 0; i < dev->addr_len; i++)
+ seq_printf(seq, "%02x", ha->addr[i]);
+
+ seq_putc(seq, '\n');
+ }
+ netif_addr_unlock_bh(dev);
+ return 0;
+}
+
+static const struct seq_operations dev_mc_seq_ops = {
+ .start = dev_seq_start,
+ .next = dev_seq_next,
+ .stop = dev_seq_stop,
+ .show = dev_mc_seq_show,
+};
+
+static int dev_mc_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &dev_mc_seq_ops,
+ sizeof(struct seq_net_private));
+}
+
+static const struct file_operations dev_mc_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = dev_mc_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net,
+};
+
+#endif
+
+static int __net_init dev_mc_net_init(struct net *net)
+{
+ if (!proc_net_fops_create(net, "dev_mcast", 0, &dev_mc_seq_fops))
+ return -ENOMEM;
+ return 0;
+}
+
+static void __net_exit dev_mc_net_exit(struct net *net)
+{
+ proc_net_remove(net, "dev_mcast");
+}
+
+static struct pernet_operations __net_initdata dev_mc_net_ops = {
+ .init = dev_mc_net_init,
+ .exit = dev_mc_net_exit,
+};
+
+void __init dev_mcast_init(void)
+{
+ register_pernet_subsys(&dev_mc_net_ops);
+}
+
diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c
deleted file mode 100644
index 3dc295beb483..000000000000
--- a/net/core/dev_mcast.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * Linux NET3: Multicast List maintenance.
- *
- * Authors:
- * Tim Kordas <tjk@nostromo.eeap.cwru.edu>
- * Richard Underwood <richard@wuzz.demon.co.uk>
- *
- * Stir fried together from the IP multicast and CAP patches above
- * Alan Cox <alan@lxorguk.ukuu.org.uk>
- *
- * Fixes:
- * Alan Cox : Update the device on a real delete
- * rather than any time but...
- * Alan Cox : IFF_ALLMULTI support.
- * Alan Cox : New format set_multicast_list() calls.
- * Gleb Natapov : Remove dev_mc_lock.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <linux/bitops.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/if_ether.h>
-#include <linux/inet.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <net/net_namespace.h>
-#include <net/ip.h>
-#include <net/route.h>
-#include <linux/skbuff.h>
-#include <net/sock.h>
-#include <net/arp.h>
-
-
-/*
- * Device multicast list maintenance.
- *
- * This is used both by IP and by the user level maintenance functions.
- * Unlike BSD we maintain a usage count on a given multicast address so
- * that a casual user application can add/delete multicasts used by
- * protocols without doing damage to the protocols when it deletes the
- * entries. It also helps IP as it tracks overlapping maps.
- *
- * Device mc lists are changed by bh at least if IPv6 is enabled,
- * so that it must be bh protected.
- *
- * We block accesses to device mc filters with netif_tx_lock.
- */
-
-/*
- * Delete a device level multicast
- */
-
-int dev_mc_delete(struct net_device *dev, void *addr, int alen, int glbl)
-{
- int err;
-
- netif_addr_lock_bh(dev);
- err = __dev_addr_delete(&dev->mc_list, &dev->mc_count,
- addr, alen, glbl);
- if (!err) {
- /*
- * We have altered the list, so the card
- * loaded filter is now wrong. Fix it
- */
-
- __dev_set_rx_mode(dev);
- }
- netif_addr_unlock_bh(dev);
- return err;
-}
-
-/*
- * Add a device level multicast
- */
-
-int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl)
-{
- int err;
-
- netif_addr_lock_bh(dev);
- if (alen != dev->addr_len)
- err = -EINVAL;
- else
- err = __dev_addr_add(&dev->mc_list, &dev->mc_count, addr, alen, glbl);
- if (!err)
- __dev_set_rx_mode(dev);
- netif_addr_unlock_bh(dev);
- return err;
-}
-
-/**
- * dev_mc_sync - Synchronize device's multicast 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_multicast_list
- * or dev->set_rx_mode function of layered software devices.
- */
-int dev_mc_sync(struct net_device *to, struct net_device *from)
-{
- int err = 0;
-
- netif_addr_lock_bh(to);
- err = __dev_addr_sync(&to->mc_list, &to->mc_count,
- &from->mc_list, &from->mc_count);
- if (!err)
- __dev_set_rx_mode(to);
- netif_addr_unlock_bh(to);
-
- return err;
-}
-EXPORT_SYMBOL(dev_mc_sync);
-
-
-/**
- * dev_mc_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_mc_sync(). This function is intended to be called from the
- * dev->stop function of layered software devices.
- */
-void dev_mc_unsync(struct net_device *to, struct net_device *from)
-{
- netif_addr_lock_bh(from);
- netif_addr_lock(to);
-
- __dev_addr_unsync(&to->mc_list, &to->mc_count,
- &from->mc_list, &from->mc_count);
- __dev_set_rx_mode(to);
-
- netif_addr_unlock(to);
- netif_addr_unlock_bh(from);
-}
-EXPORT_SYMBOL(dev_mc_unsync);
-
-#ifdef CONFIG_PROC_FS
-static int dev_mc_seq_show(struct seq_file *seq, void *v)
-{
- struct dev_addr_list *m;
- struct net_device *dev = v;
-
- if (v == SEQ_START_TOKEN)
- return 0;
-
- netif_addr_lock_bh(dev);
- for (m = dev->mc_list; m; m = m->next) {
- int i;
-
- seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
- dev->name, m->dmi_users, m->dmi_gusers);
-
- for (i = 0; i < m->dmi_addrlen; i++)
- seq_printf(seq, "%02x", m->dmi_addr[i]);
-
- seq_putc(seq, '\n');
- }
- netif_addr_unlock_bh(dev);
- return 0;
-}
-
-static const struct seq_operations dev_mc_seq_ops = {
- .start = dev_seq_start,
- .next = dev_seq_next,
- .stop = dev_seq_stop,
- .show = dev_mc_seq_show,
-};
-
-static int dev_mc_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &dev_mc_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations dev_mc_seq_fops = {
- .owner = THIS_MODULE,
- .open = dev_mc_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-#endif
-
-static int __net_init dev_mc_net_init(struct net *net)
-{
- if (!proc_net_fops_create(net, "dev_mcast", 0, &dev_mc_seq_fops))
- return -ENOMEM;
- return 0;
-}
-
-static void __net_exit dev_mc_net_exit(struct net *net)
-{
- proc_net_remove(net, "dev_mcast");
-}
-
-static struct pernet_operations __net_initdata dev_mc_net_ops = {
- .init = dev_mc_net_init,
- .exit = dev_mc_net_exit,
-};
-
-void __init dev_mcast_init(void)
-{
- register_pernet_subsys(&dev_mc_net_ops);
-}
-
-EXPORT_SYMBOL(dev_mc_add);
-EXPORT_SYMBOL(dev_mc_delete);
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 238af093495b..f3e4734d207f 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -349,7 +349,7 @@ static void dn_dev_del_ifa(struct dn_dev *dn_db, struct dn_ifaddr **ifap, int de
if (dn_db->dev->type == ARPHRD_ETHER) {
if (ifa1->ifa_local != dn_eth2dn(dev->dev_addr)) {
dn_dn2eth(mac_addr, ifa1->ifa_local);
- dev_mc_delete(dev, mac_addr, ETH_ALEN, 0);
+ dev_mc_del(dev, mac_addr);
}
}
@@ -380,7 +380,7 @@ static int dn_dev_insert_ifa(struct dn_dev *dn_db, struct dn_ifaddr *ifa)
if (dev->type == ARPHRD_ETHER) {
if (ifa->ifa_local != dn_eth2dn(dev->dev_addr)) {
dn_dn2eth(mac_addr, ifa->ifa_local);
- dev_mc_add(dev, mac_addr, ETH_ALEN, 0);
+ dev_mc_add(dev, mac_addr);
}
}
@@ -1000,9 +1000,9 @@ static int dn_eth_up(struct net_device *dev)
struct dn_dev *dn_db = dev->dn_ptr;
if (dn_db->parms.forwarding == 0)
- dev_mc_add(dev, dn_rt_all_end_mcast, ETH_ALEN, 0);
+ dev_mc_add(dev, dn_rt_all_end_mcast);
else
- dev_mc_add(dev, dn_rt_all_rt_mcast, ETH_ALEN, 0);
+ dev_mc_add(dev, dn_rt_all_rt_mcast);
dn_db->use_long = 1;
@@ -1014,9 +1014,9 @@ static void dn_eth_down(struct net_device *dev)
struct dn_dev *dn_db = dev->dn_ptr;
if (dn_db->parms.forwarding == 0)
- dev_mc_delete(dev, dn_rt_all_end_mcast, ETH_ALEN, 0);
+ dev_mc_del(dev, dn_rt_all_end_mcast);
else
- dev_mc_delete(dev, dn_rt_all_rt_mcast, ETH_ALEN, 0);
+ dev_mc_del(dev, dn_rt_all_rt_mcast);
}
static void dn_dev_set_timer(struct net_device *dev);
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 63bf298ca109..51824c42b775 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -997,7 +997,7 @@ static void ip_mc_filter_add(struct in_device *in_dev, __be32 addr)
--ANK
*/
if (arp_mc_map(addr, buf, dev, 0) == 0)
- dev_mc_add(dev, buf, dev->addr_len, 0);
+ dev_mc_add(dev, buf);
}
/*
@@ -1010,7 +1010,7 @@ static void ip_mc_filter_del(struct in_device *in_dev, __be32 addr)
struct net_device *dev = in_dev->dev;
if (arp_mc_map(addr, buf, dev, 0) == 0)
- dev_mc_delete(dev, buf, dev->addr_len, 0);
+ dev_mc_del(dev, buf);
}
#ifdef CONFIG_IP_MULTICAST
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 0886f96c736b..a2208b7b313d 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -87,7 +87,7 @@ clusterip_config_entry_put(struct clusterip_config *c)
list_del(&c->list);
write_unlock_bh(&clusterip_lock);
- dev_mc_delete(c->dev, c->clustermac, ETH_ALEN, 0);
+ dev_mc_del(c->dev, c->clustermac);
dev_put(c->dev);
/* In case anyone still accesses the file, the open/close
@@ -396,7 +396,7 @@ static bool clusterip_tg_check(const struct xt_tgchk_param *par)
dev_put(dev);
return false;
}
- dev_mc_add(config->dev,config->clustermac, ETH_ALEN, 0);
+ dev_mc_add(config->dev, config->clustermac);
}
}
cipinfo->config = config;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index bcd971915969..37d1868c0064 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -714,7 +714,7 @@ static void igmp6_group_added(struct ifmcaddr6 *mc)
if (!(mc->mca_flags&MAF_LOADED)) {
mc->mca_flags |= MAF_LOADED;
if (ndisc_mc_map(&mc->mca_addr, buf, dev, 0) == 0)
- dev_mc_add(dev, buf, dev->addr_len, 0);
+ dev_mc_add(dev, buf);
}
spin_unlock_bh(&mc->mca_lock);
@@ -740,7 +740,7 @@ static void igmp6_group_dropped(struct ifmcaddr6 *mc)
if (mc->mca_flags&MAF_LOADED) {
mc->mca_flags &= ~MAF_LOADED;
if (ndisc_mc_map(&mc->mca_addr, buf, dev, 0) == 0)
- dev_mc_delete(dev, buf, dev->addr_len, 0);
+ dev_mc_del(dev, buf);
}
if (mc->mca_flags & MAF_NOREPORT)
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index c3d844093a2f..9179196da264 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -84,16 +84,14 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
}
static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
- int mc_count,
- struct dev_addr_list *mc_list)
+ struct netdev_hw_addr_list *mc_list)
{
u64 ret = 0;
if (local->ops->prepare_multicast)
- ret = local->ops->prepare_multicast(&local->hw, mc_count,
- mc_list);
+ ret = local->ops->prepare_multicast(&local->hw, mc_list);
- trace_drv_prepare_multicast(local, mc_count, ret);
+ trace_drv_prepare_multicast(local, mc_list->count, ret);
return ret;
}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index ab369e2a5282..7fdacf9408b1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -646,8 +646,7 @@ struct ieee80211_local {
struct work_struct recalc_smps;
/* aggregated multicast list */
- struct dev_addr_list *mc_list;
- int mc_count;
+ struct netdev_hw_addr_list mc_list;
bool tim_in_locked_section; /* see ieee80211_beacon_get() */
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index b4ec59a8dc03..00f3a93c6b04 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -412,8 +412,7 @@ static int ieee80211_stop(struct net_device *dev)
netif_addr_lock_bh(dev);
spin_lock_bh(&local->filter_lock);
- __dev_addr_unsync(&local->mc_list, &local->mc_count,
- &dev->mc_list, &dev->mc_count);
+ __hw_addr_unsync(&local->mc_list, &dev->mc, dev->addr_len);
spin_unlock_bh(&local->filter_lock);
netif_addr_unlock_bh(dev);
@@ -596,8 +595,7 @@ static void ieee80211_set_multicast_list(struct net_device *dev)
sdata->flags ^= IEEE80211_SDATA_PROMISC;
}
spin_lock_bh(&local->filter_lock);
- __dev_addr_sync(&local->mc_list, &local->mc_count,
- &dev->mc_list, &dev->mc_count);
+ __hw_addr_sync(&local->mc_list, &dev->mc, dev->addr_len);
spin_unlock_bh(&local->filter_lock);
ieee80211_queue_work(&local->hw, &local->reconfig_filter);
}
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 06c33b68d8e5..84ad249a4e2e 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -71,7 +71,7 @@ void ieee80211_configure_filter(struct ieee80211_local *local)
spin_lock_bh(&local->filter_lock);
changed_flags = local->filter_flags ^ new_flags;
- mc = drv_prepare_multicast(local, local->mc_count, local->mc_list);
+ mc = drv_prepare_multicast(local, &local->mc_list);
spin_unlock_bh(&local->filter_lock);
/* be a bit nasty */
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 48c1e0ae565f..b0f037cc899c 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1691,9 +1691,9 @@ static int packet_dev_mc(struct net_device *dev, struct packet_mclist *i,
if (i->alen != dev->addr_len)
return -EINVAL;
if (what > 0)
- return dev_mc_add(dev, i->addr, i->alen, 0);
+ return dev_mc_add(dev, i->addr);
else
- return dev_mc_delete(dev, i->addr, i->alen, 0);
+ return dev_mc_del(dev, i->addr);
break;
case PACKET_MR_PROMISC:
return dev_set_promiscuity(dev, what);