1 files changed, 26 insertions, 19 deletions

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 040c4f05b653..da14c49284f4 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -50,6 +50,7 @@
 #include <linux/notifier.h>
 #include <linux/inetdevice.h>
 #include <linux/igmp.h>
+#include <linux/slab.h>
 #ifdef CONFIG_SYSCTL
 #include <linux/sysctl.h>
 #endif
@@ -64,20 +65,20 @@
 
 static struct ipv4_devconf ipv4_devconf = {
         .data = {
-                [NET_IPV4_CONF_ACCEPT_REDIRECTS - 1] = 1,
-                [NET_IPV4_CONF_SEND_REDIRECTS - 1] = 1,
-                [NET_IPV4_CONF_SECURE_REDIRECTS - 1] = 1,
-                [NET_IPV4_CONF_SHARED_MEDIA - 1] = 1,
+                [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
+                [IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
+                [IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
+                [IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
         },
 };
 
 static struct ipv4_devconf ipv4_devconf_dflt = {
         .data = {
-                [NET_IPV4_CONF_ACCEPT_REDIRECTS - 1] = 1,
-                [NET_IPV4_CONF_SEND_REDIRECTS - 1] = 1,
-                [NET_IPV4_CONF_SECURE_REDIRECTS - 1] = 1,
-                [NET_IPV4_CONF_SHARED_MEDIA - 1] = 1,
-                [NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE - 1] = 1,
+                [IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
+                [IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
+                [IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
+                [IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
+                [IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE - 1] = 1,
         },
 };
 
@@ -1080,6 +1081,7 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
                 }
                 ip_mc_up(in_dev);
                 /* fall through */
+        case NETDEV_NOTIFY_PEERS:
         case NETDEV_CHANGEADDR:
                 /* Send gratuitous ARP to notify of link change */
                 if (IN_DEV_ARP_NOTIFY(in_dev)) {
@@ -1095,10 +1097,10 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
         case NETDEV_DOWN:
                 ip_mc_down(in_dev);
                 break;
-        case NETDEV_BONDING_OLDTYPE:
+        case NETDEV_PRE_TYPE_CHANGE:
                 ip_mc_unmap(in_dev);
                 break;
-        case NETDEV_BONDING_NEWTYPE:
+        case NETDEV_POST_TYPE_CHANGE:
                 ip_mc_remap(in_dev);
                 break;
         case NETDEV_CHANGEMTU:
@@ -1194,7 +1196,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
                 hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
                         if (idx < s_idx)
                                 goto cont;
-                        if (idx > s_idx)
+                        if (h > s_h || idx > s_idx)
                                 s_ip_idx = 0;
                         in_dev = __in_dev_get_rcu(dev);
                         if (!in_dev)
@@ -1317,14 +1319,19 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
 {
         int *valp = ctl->data;
         int val = *valp;
+        loff_t pos = *ppos;
         int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
         if (write && *valp != val) {
                 struct net *net = ctl->extra2;
 
                 if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {
-                        if (!rtnl_trylock())
+                        if (!rtnl_trylock()) {
+                                /* Restore the original values before restarting */
+                                *valp = val;
+                                *ppos = pos;
                                 return restart_syscall();
+                        }
                         if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
                                 inet_forward_change(net);
                         } else if (*valp) {
@@ -1360,7 +1367,7 @@ int ipv4_doint_and_flush(ctl_table *ctl, int write,
         { \
                 .procname       = name, \
                 .data           = ipv4_devconf.data + \
-                                  NET_IPV4_CONF_ ## attr - 1, \
+                                  IPV4_DEVCONF_ ## attr - 1, \
                 .maxlen         = sizeof(int), \
                 .mode           = mval, \
                 .proc_handler   = proc, \
@@ -1381,7 +1388,7 @@ int ipv4_doint_and_flush(ctl_table *ctl, int write,
 
 static struct devinet_sysctl_table {
         struct ctl_table_header *sysctl_header;
-        struct ctl_table devinet_vars[__NET_IPV4_CONF_MAX];
+        struct ctl_table devinet_vars[__IPV4_DEVCONF_MAX];
         char *dev_name;
 } devinet_sysctl = {
         .devinet_vars = {
@@ -1408,6 +1415,7 @@ static struct devinet_sysctl_table {
                 DEVINET_SYSCTL_RW_ENTRY(ARP_IGNORE, "arp_ignore"),
                 DEVINET_SYSCTL_RW_ENTRY(ARP_ACCEPT, "arp_accept"),
                 DEVINET_SYSCTL_RW_ENTRY(ARP_NOTIFY, "arp_notify"),
+                DEVINET_SYSCTL_RW_ENTRY(PROXY_ARP_PVLAN, "proxy_arp_pvlan"),
 
                 DEVINET_SYSCTL_FLUSHING_ENTRY(NOXFRM, "disable_xfrm"),
                 DEVINET_SYSCTL_FLUSHING_ENTRY(NOPOLICY, "disable_policy"),
@@ -1486,8 +1494,7 @@ static void __devinet_sysctl_unregister(struct ipv4_devconf *cnf)
 
 static void devinet_sysctl_register(struct in_device *idev)
 {
-        neigh_sysctl_register(idev->dev, idev->arp_parms, NET_IPV4,
-                        NET_IPV4_NEIGH, "ipv4", NULL);
+        neigh_sysctl_register(idev->dev, idev->arp_parms, "ipv4", NULL);
         __devinet_sysctl_register(dev_net(idev->dev), idev->dev->name,
                                         &idev->cnf);
 }
@@ -1502,7 +1509,7 @@ static struct ctl_table ctl_forward_entry[] = {
         {
                 .procname       = "ip_forward",
                 .data           = &ipv4_devconf.data[
-                                        NET_IPV4_CONF_FORWARDING - 1],
+                                        IPV4_DEVCONF_FORWARDING - 1],
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = devinet_sysctl_forward,
@@ -1546,7 +1553,7 @@ static __net_init int devinet_init_net(struct net *net)
                 if (tbl == NULL)
                         goto err_alloc_ctl;
 
-                tbl[0].data = &all->data[NET_IPV4_CONF_FORWARDING - 1];
+                tbl[0].data = &all->data[IPV4_DEVCONF_FORWARDING - 1];
                 tbl[0].extra1 = all;
                 tbl[0].extra2 = net;
 #endif