[PATCH] switch audit_get_loginuid() to task_struct *

[linux-2.6] / net / core / dev.c

diff --git a/net/core/dev.c b/net/core/dev.c
index 12f66e528a4b5a9948c7dceeeac649ff889e1a98..c0b69b3bb04117e20a941285f82951ddb8a9e0a4 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -675,7 +675,7 @@ struct net_device *dev_getbyhwaddr(struct net *net, unsigned short type, char *h
 
        ASSERT_RTNL();
 
-       for_each_netdev(&init_net, dev)
+       for_each_netdev(net, dev)
                if (dev->type == type &&
                    !memcmp(dev->dev_addr, ha, dev->addr_len))
                        return dev;
@@ -2368,6 +2368,7 @@ static int dev_ifconf(struct net *net, char __user *arg)
  *     in detail.
  */
 void *dev_seq_start(struct seq_file *seq, loff_t *pos)
+       __acquires(dev_base_lock)
 {
        struct net *net = seq_file_net(seq);
        loff_t off;
@@ -2394,6 +2395,7 @@ void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 }
 
 void dev_seq_stop(struct seq_file *seq, void *v)
+       __releases(dev_base_lock)
 {
        read_unlock(&dev_base_lock);
 }
@@ -2541,6 +2543,7 @@ static void *ptype_get_idx(loff_t pos)
 }
 
 static void *ptype_seq_start(struct seq_file *seq, loff_t *pos)
+       __acquires(RCU)
 {
        rcu_read_lock();
        return *pos ? ptype_get_idx(*pos - 1) : SEQ_START_TOKEN;
@@ -2576,6 +2579,7 @@ found:
 }
 
 static void ptype_seq_stop(struct seq_file *seq, void *v)
+       __releases(RCU)
 {
        rcu_read_unlock();
 }
@@ -2753,7 +2757,7 @@ static void __dev_set_promiscuity(struct net_device *dev, int inc)
                        "dev=%s prom=%d old_prom=%d auid=%u",
                        dev->name, (dev->flags & IFF_PROMISC),
                        (old_flags & IFF_PROMISC),
-                       audit_get_loginuid(current->audit_context));
+                       audit_get_loginuid(current));
 
                if (dev->change_rx_flags)
                        dev->change_rx_flags(dev, IFF_PROMISC);
@@ -2958,6 +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;
@@ -3971,6 +4071,8 @@ void synchronize_net(void)
 
 void unregister_netdevice(struct net_device *dev)
 {
+       ASSERT_RTNL();
+
        rollback_registered(dev);
        /* Finish processing unregister after unlock */
        net_set_todo(dev);