#endif
dev_put(dev);
if (!idev->dead)
- printk("Freeing alive in_device %p\n", idev);
- else {
+ pr_err("Freeing alive in_device %p\n", idev);
+ else
kfree(idev);
- }
}
+EXPORT_SYMBOL(in_dev_finish_destroy);
static struct in_device *inetdev_init(struct net_device *dev)
{
sizeof(in_dev->cnf));
in_dev->cnf.sysctl = NULL;
in_dev->dev = dev;
- if ((in_dev->arp_parms = neigh_parms_alloc(dev, &arp_tbl)) == NULL)
+ in_dev->arp_parms = neigh_parms_alloc(dev, &arp_tbl);
+ if (!in_dev->arp_parms)
goto out_kfree;
if (IPV4_DEVCONF(in_dev->cnf, FORWARDING))
dev_disable_lro(dev);
{
struct net_device *dev;
struct in_device *in_dev = NULL;
- read_lock(&dev_base_lock);
- dev = __dev_get_by_index(net, ifindex);
+
+ rcu_read_lock();
+ dev = dev_get_by_index_rcu(net, ifindex);
if (dev)
in_dev = in_dev_get(dev);
- read_unlock(&dev_base_lock);
+ rcu_read_unlock();
return in_dev;
}
+EXPORT_SYMBOL(inetdev_by_index);
/* Called only from RTNL semaphored context. No locks. */
* Determine a default network mask, based on the IP address.
*/
-static __inline__ int inet_abc_len(__be32 addr)
+static inline int inet_abc_len(__be32 addr)
{
int rc = -1; /* Something else, probably a multicast. */
rtnl_lock();
ret = -ENODEV;
- if ((dev = __dev_get_by_name(net, ifr.ifr_name)) == NULL)
+ dev = __dev_get_by_name(net, ifr.ifr_name);
+ if (!dev)
goto done;
if (colon)
*colon = ':';
- if ((in_dev = __in_dev_get_rtnl(dev)) != NULL) {
+ in_dev = __in_dev_get_rtnl(dev);
+ if (in_dev) {
if (tryaddrmatch) {
/* Matthias Andree */
/* compare label and address (4.4BSD style) */
if (!ifa) {
ret = -ENOBUFS;
- if ((ifa = inet_alloc_ifa()) == NULL)
+ ifa = inet_alloc_ifa();
+ if (!ifa)
break;
if (colon)
memcpy(ifa->ifa_label, ifr.ifr_name, IFNAMSIZ);
struct ifreq ifr;
int done = 0;
- if (!in_dev || (ifa = in_dev->ifa_list) == NULL)
+ if (!in_dev)
goto out;
- for (; ifa; ifa = ifa->ifa_next) {
+ for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
if (!buf) {
done += sizeof(ifr);
continue;
if (!addr)
addr = ifa->ifa_local;
} endfor_ifa(in_dev);
-no_in_dev:
- rcu_read_unlock();
if (addr)
- goto out;
+ goto out_unlock;
+no_in_dev:
/* Not loopback addresses on loopback should be preferred
in this case. It is importnat that lo is the first interface
in dev_base list.
*/
- read_lock(&dev_base_lock);
- rcu_read_lock();
- for_each_netdev(net, dev) {
- if ((in_dev = __in_dev_get_rcu(dev)) == NULL)
+ for_each_netdev_rcu(net, dev) {
+ in_dev = __in_dev_get_rcu(dev);
+ if (!in_dev)
continue;
for_primary_ifa(in_dev) {
if (ifa->ifa_scope != RT_SCOPE_LINK &&
ifa->ifa_scope <= scope) {
addr = ifa->ifa_local;
- goto out_unlock_both;
+ goto out_unlock;
}
} endfor_ifa(in_dev);
}
-out_unlock_both:
- read_unlock(&dev_base_lock);
+out_unlock:
rcu_read_unlock();
-out:
return addr;
}
+EXPORT_SYMBOL(inet_select_addr);
static __be32 confirm_addr_indev(struct in_device *in_dev, __be32 dst,
__be32 local, int scope)
}
} endfor_ifa(in_dev);
- return same? addr : 0;
+ return same ? addr : 0;
}
/*
return confirm_addr_indev(in_dev, dst, local, scope);
net = dev_net(in_dev->dev);
- read_lock(&dev_base_lock);
rcu_read_lock();
- for_each_netdev(net, dev) {
- if ((in_dev = __in_dev_get_rcu(dev))) {
+ for_each_netdev_rcu(net, dev) {
+ in_dev = __in_dev_get_rcu(dev);
+ if (in_dev) {
addr = confirm_addr_indev(in_dev, dst, local, scope);
if (addr)
break;
}
}
rcu_read_unlock();
- read_unlock(&dev_base_lock);
return addr;
}
{
return blocking_notifier_chain_register(&inetaddr_chain, nb);
}
+EXPORT_SYMBOL(register_inetaddr_notifier);
int unregister_inetaddr_notifier(struct notifier_block *nb)
{
return blocking_notifier_chain_unregister(&inetaddr_chain, nb);
}
+EXPORT_SYMBOL(unregister_inetaddr_notifier);
-/* Rename ifa_labels for a device name change. Make some effort to preserve existing
- * alias numbering and to create unique labels if possible.
+/* Rename ifa_labels for a device name change. Make some effort to preserve
+ * existing alias numbering and to create unique labels if possible.
*/
static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
{
sprintf(old, ":%d", named);
dot = old;
}
- if (strlen(dot) + strlen(dev->name) < IFNAMSIZ) {
+ if (strlen(dot) + strlen(dev->name) < IFNAMSIZ)
strcat(ifa->ifa_label, dot);
- } else {
+ else
strcpy(ifa->ifa_label + (IFNAMSIZ - strlen(dot) - 1), dot);
- }
skip:
rtmsg_ifa(RTM_NEWADDR, ifa, NULL, 0);
}
if (!inetdev_valid_mtu(dev->mtu))
break;
if (dev->flags & IFF_LOOPBACK) {
- struct in_ifaddr *ifa;
- if ((ifa = inet_alloc_ifa()) != NULL) {
+ struct in_ifaddr *ifa = inet_alloc_ifa();
+
+ if (ifa) {
ifa->ifa_local =
ifa->ifa_address = htonl(INADDR_LOOPBACK);
ifa->ifa_prefixlen = 8;
static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
{
struct net *net = sock_net(skb->sk);
- int idx, ip_idx;
+ int h, s_h;
+ int idx, s_idx;
+ int ip_idx, s_ip_idx;
struct net_device *dev;
struct in_device *in_dev;
struct in_ifaddr *ifa;
- int s_ip_idx, s_idx = cb->args[0];
+ struct hlist_head *head;
+ struct hlist_node *node;
- s_ip_idx = ip_idx = cb->args[1];
- idx = 0;
- for_each_netdev(net, dev) {
- if (idx < s_idx)
- goto cont;
- if (idx > s_idx)
- s_ip_idx = 0;
- if ((in_dev = __in_dev_get_rtnl(dev)) == NULL)
- goto cont;
-
- for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
- ifa = ifa->ifa_next, ip_idx++) {
- if (ip_idx < s_ip_idx)
- continue;
- if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
+ s_h = cb->args[0];
+ s_idx = idx = cb->args[1];
+ s_ip_idx = ip_idx = cb->args[2];
+
+ for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
+ idx = 0;
+ head = &net->dev_index_head[h];
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
+ if (idx < s_idx)
+ goto cont;
+ if (idx > s_idx)
+ s_ip_idx = 0;
+ in_dev = __in_dev_get_rcu(dev);
+ if (!in_dev)
+ goto cont;
+
+ for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
+ ifa = ifa->ifa_next, ip_idx++) {
+ if (ip_idx < s_ip_idx)
+ continue;
+ if (inet_fill_ifaddr(skb, ifa,
+ NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq,
- RTM_NEWADDR, NLM_F_MULTI) <= 0)
- goto done;
- }
+ RTM_NEWADDR, NLM_F_MULTI) <= 0) {
+ rcu_read_unlock();
+ goto done;
+ }
+ }
cont:
- idx++;
+ idx++;
+ }
+ rcu_read_unlock();
}
done:
- cb->args[0] = idx;
- cb->args[1] = ip_idx;
+ cb->args[0] = h;
+ cb->args[1] = idx;
+ cb->args[2] = ip_idx;
return skb->len;
}
{
struct net_device *dev;
- read_lock(&dev_base_lock);
- for_each_netdev(net, dev) {
+ rcu_read_lock();
+ for_each_netdev_rcu(net, dev) {
struct in_device *in_dev;
- rcu_read_lock();
+
in_dev = __in_dev_get_rcu(dev);
if (in_dev && !test_bit(i, in_dev->cnf.state))
in_dev->cnf.data[i] = net->ipv4.devconf_dflt->data[i];
- rcu_read_unlock();
}
- read_unlock(&dev_base_lock);
+ rcu_read_unlock();
}
+/* called with RTNL locked */
static void inet_forward_change(struct net *net)
{
struct net_device *dev;
IPV4_DEVCONF_ALL(net, ACCEPT_REDIRECTS) = !on;
IPV4_DEVCONF_DFLT(net, FORWARDING) = on;
- read_lock(&dev_base_lock);
for_each_netdev(net, dev) {
struct in_device *in_dev;
if (on)
IN_DEV_CONF_SET(in_dev, FORWARDING, on);
rcu_read_unlock();
}
- read_unlock(&dev_base_lock);
}
static int devinet_conf_proc(ctl_table *ctl, int write,
DEVINET_SYSCTL_RW_ENTRY(SEND_REDIRECTS, "send_redirects"),
DEVINET_SYSCTL_RW_ENTRY(ACCEPT_SOURCE_ROUTE,
"accept_source_route"),
+ DEVINET_SYSCTL_RW_ENTRY(ACCEPT_LOCAL, "accept_local"),
DEVINET_SYSCTL_RW_ENTRY(PROXY_ARP, "proxy_arp"),
DEVINET_SYSCTL_RW_ENTRY(MEDIUM_ID, "medium_id"),
DEVINET_SYSCTL_RW_ENTRY(BOOTP_RELAY, "bootp_relay"),
all = &ipv4_devconf;
dflt = &ipv4_devconf_dflt;
- if (net != &init_net) {
+ if (!net_eq(net, &init_net)) {
all = kmemdup(all, sizeof(ipv4_devconf), GFP_KERNEL);
if (all == NULL)
goto err_alloc_all;
rtnl_register(PF_INET, RTM_GETADDR, NULL, inet_dump_ifaddr);
}
-EXPORT_SYMBOL(in_dev_finish_destroy);
-EXPORT_SYMBOL(inet_select_addr);
-EXPORT_SYMBOL(inetdev_by_index);
-EXPORT_SYMBOL(register_inetaddr_notifier);
-EXPORT_SYMBOL(unregister_inetaddr_notifier);
git.samba.org / sfrench / cifs-2.6.git / blobdiff