ipv4 addr: Send netlink notification for address label changes

[net-next-2.6.git] / net / ipv4 / devinet.c

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index f282b26f63eb7c20d0b456e104b1a8772b009bb8..61011e1d580ea3a4a53404bd4e0cddd7ae6aa2b1 100644 (file)
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -90,7 +90,6 @@ static const struct nla_policy ifa_ipv4_policy[IFA_MAX+1] = {
        [IFA_LOCAL]             = { .type = NLA_U32 },
        [IFA_ADDRESS]           = { .type = NLA_U32 },
        [IFA_BROADCAST]         = { .type = NLA_U32 },
-       [IFA_ANYCAST]           = { .type = NLA_U32 },
        [IFA_LABEL]             = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
 };
 
@@ -165,7 +164,7 @@ static struct in_device *inetdev_init(struct net_device *dev)
        if (!in_dev)
                goto out;
        INIT_RCU_HEAD(&in_dev->rcu_head);
-       memcpy(&in_dev->cnf, dev->nd_net->ipv4.devconf_dflt,
+       memcpy(&in_dev->cnf, dev_net(dev)->ipv4.devconf_dflt,
                        sizeof(in_dev->cnf));
        in_dev->cnf.sysctl = NULL;
        in_dev->dev = dev;
@@ -437,7 +436,7 @@ struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix,
 
 static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-       struct net *net = skb->sk->sk_net;
+       struct net *net = sock_net(skb->sk);
        struct nlattr *tb[IFA_MAX+1];
        struct in_device *in_dev;
        struct ifaddrmsg *ifm;
@@ -446,9 +445,6 @@ static int inet_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg
 
        ASSERT_RTNL();
 
-       if (net != &init_net)
-               return -EINVAL;
-
        err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv4_policy);
        if (err < 0)
                goto errout;
@@ -539,9 +535,6 @@ static struct in_ifaddr *rtm_to_ifaddr(struct net *net, struct nlmsghdr *nlh)
        if (tb[IFA_BROADCAST])
                ifa->ifa_broadcast = nla_get_be32(tb[IFA_BROADCAST]);
 
-       if (tb[IFA_ANYCAST])
-               ifa->ifa_anycast = nla_get_be32(tb[IFA_ANYCAST]);
-
        if (tb[IFA_LABEL])
                nla_strlcpy(ifa->ifa_label, tb[IFA_LABEL], IFNAMSIZ);
        else
@@ -555,14 +548,11 @@ errout:
 
 static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
-       struct net *net = skb->sk->sk_net;
+       struct net *net = sock_net(skb->sk);
        struct in_ifaddr *ifa;
 
        ASSERT_RTNL();
 
-       if (net != &init_net)
-               return -EINVAL;
-
        ifa = rtm_to_ifaddr(net, nlh);
        if (IS_ERR(ifa))
                return PTR_ERR(ifa);
@@ -595,7 +585,7 @@ static __inline__ int inet_abc_len(__be32 addr)
 }
 
 
-int devinet_ioctl(unsigned int cmd, void __user *arg)
+int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 {
        struct ifreq ifr;
        struct sockaddr_in sin_orig;
@@ -624,7 +614,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
                *colon = 0;
 
 #ifdef CONFIG_KMOD
-       dev_load(&init_net, ifr.ifr_name);
+       dev_load(net, ifr.ifr_name);
 #endif
 
        switch (cmd) {
@@ -665,7 +655,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
        rtnl_lock();
 
        ret = -ENODEV;
-       if ((dev = __dev_get_by_name(&init_net, ifr.ifr_name)) == NULL)
+       if ((dev = __dev_get_by_name(net, ifr.ifr_name)) == NULL)
                goto done;
 
        if (colon)
@@ -751,7 +741,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
                                break;
                        inet_del_ifa(in_dev, ifap, 0);
                        ifa->ifa_broadcast = 0;
-                       ifa->ifa_anycast = 0;
+                       ifa->ifa_scope = 0;
                }
 
                ifa->ifa_address = ifa->ifa_local = sin->sin_addr.s_addr;
@@ -877,6 +867,7 @@ __be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope)
 {
        __be32 addr = 0;
        struct in_device *in_dev;
+       struct net *net = dev_net(dev);
 
        rcu_read_lock();
        in_dev = __in_dev_get_rcu(dev);
@@ -905,7 +896,7 @@ no_in_dev:
         */
        read_lock(&dev_base_lock);
        rcu_read_lock();
-       for_each_netdev(&init_net, dev) {
+       for_each_netdev(net, dev) {
                if ((in_dev = __in_dev_get_rcu(dev)) == NULL)
                        continue;
 
@@ -978,7 +969,7 @@ __be32 inet_confirm_addr(struct in_device *in_dev,
        if (scope != RT_SCOPE_LINK)
                return confirm_addr_indev(in_dev, dst, local, scope);
 
-       net = in_dev->dev->nd_net;
+       net = dev_net(in_dev->dev);
        read_lock(&dev_base_lock);
        rcu_read_lock();
        for_each_netdev(net, dev) {
@@ -1022,7 +1013,7 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
                memcpy(old, ifa->ifa_label, IFNAMSIZ);
                memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
                if (named++ == 0)
-                       continue;
+                       goto skip;
                dot = strchr(old, ':');
                if (dot == NULL) {
                        sprintf(old, ":%d", named);
@@ -1033,6 +1024,8 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
                } else {
                        strcpy(ifa->ifa_label + (IFNAMSIZ - strlen(dot) - 1), dot);
                }
+skip:
+               rtmsg_ifa(RTM_NEWADDR, ifa, NULL, 0);
        }
 }
 
@@ -1044,9 +1037,6 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
        struct net_device *dev = ptr;
        struct in_device *in_dev = __in_dev_get_rtnl(dev);
 
-       if (dev->nd_net != &init_net)
-               return NOTIFY_DONE;
-
        ASSERT_RTNL();
 
        if (!in_dev) {
@@ -1120,7 +1110,6 @@ static inline size_t inet_nlmsg_size(void)
               + nla_total_size(4) /* IFA_ADDRESS */
               + nla_total_size(4) /* IFA_LOCAL */
               + nla_total_size(4) /* IFA_BROADCAST */
-              + nla_total_size(4) /* IFA_ANYCAST */
               + nla_total_size(IFNAMSIZ); /* IFA_LABEL */
 }
 
@@ -1150,9 +1139,6 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
        if (ifa->ifa_broadcast)
                NLA_PUT_BE32(skb, IFA_BROADCAST, ifa->ifa_broadcast);
 
-       if (ifa->ifa_anycast)
-               NLA_PUT_BE32(skb, IFA_ANYCAST, ifa->ifa_anycast);
-
        if (ifa->ifa_label[0])
                NLA_PUT_STRING(skb, IFA_LABEL, ifa->ifa_label);
 
@@ -1165,16 +1151,13 @@ nla_put_failure:
 
 static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
 {
-       struct net *net = skb->sk->sk_net;
+       struct net *net = sock_net(skb->sk);
        int idx, ip_idx;
        struct net_device *dev;
        struct in_device *in_dev;
        struct in_ifaddr *ifa;
        int s_ip_idx, s_idx = cb->args[0];
 
-       if (net != &init_net)
-               return 0;
-
        s_ip_idx = ip_idx = cb->args[1];
        idx = 0;
        for_each_netdev(net, dev) {
@@ -1213,7 +1196,7 @@ static void rtmsg_ifa(int event, struct in_ifaddr* ifa, struct nlmsghdr *nlh,
        int err = -ENOBUFS;
        struct net *net;
 
-       net = ifa->ifa_dev->dev->nd_net;
+       net = dev_net(ifa->ifa_dev->dev);
        skb = nlmsg_new(inet_nlmsg_size(), GFP_KERNEL);
        if (skb == NULL)
                goto errout;
@@ -1527,7 +1510,7 @@ static void devinet_sysctl_register(struct in_device *idev)
 {
        neigh_sysctl_register(idev->dev, idev->arp_parms, NET_IPV4,
                        NET_IPV4_NEIGH, "ipv4", NULL, NULL);
-       __devinet_sysctl_register(idev->dev->nd_net, idev->dev->name,
+       __devinet_sysctl_register(dev_net(idev->dev), idev->dev->name,
                        idev->dev->ifindex, &idev->cnf);
 }