[IPV4]: Convert address dumping to new netlink api

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 23 insertions, 19 deletions

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 309640e9ede1..80bf5b2ea2e6 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1112,32 +1112,37 @@ static int inet_fill_ifaddr(struct sk_buff *skb, struct in_ifaddr *ifa,
 {
         struct ifaddrmsg *ifm;
         struct nlmsghdr  *nlh;
-        unsigned char    *b = skb->tail;
 
-        nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
-        ifm = NLMSG_DATA(nlh);
+        nlh = nlmsg_put(skb, pid, seq, event, sizeof(*ifm), flags);
+        if (nlh == NULL)
+                return -ENOBUFS;
+
+        ifm = nlmsg_data(nlh);
         ifm->ifa_family = AF_INET;
         ifm->ifa_prefixlen = ifa->ifa_prefixlen;
         ifm->ifa_flags = ifa->ifa_flags|IFA_F_PERMANENT;
         ifm->ifa_scope = ifa->ifa_scope;
         ifm->ifa_index = ifa->ifa_dev->dev->ifindex;
+
         if (ifa->ifa_address)
-                RTA_PUT(skb, IFA_ADDRESS, 4, &ifa->ifa_address);
+                NLA_PUT_U32(skb, IFA_ADDRESS, ifa->ifa_address);
+
         if (ifa->ifa_local)
-                RTA_PUT(skb, IFA_LOCAL, 4, &ifa->ifa_local);
+                NLA_PUT_U32(skb, IFA_LOCAL, ifa->ifa_local);
+
         if (ifa->ifa_broadcast)
-                RTA_PUT(skb, IFA_BROADCAST, 4, &ifa->ifa_broadcast);
+                NLA_PUT_U32(skb, IFA_BROADCAST, ifa->ifa_broadcast);
+
         if (ifa->ifa_anycast)
-                RTA_PUT(skb, IFA_ANYCAST, 4, &ifa->ifa_anycast);
+                NLA_PUT_U32(skb, IFA_ANYCAST, ifa->ifa_anycast);
+
         if (ifa->ifa_label[0])
-                RTA_PUT(skb, IFA_LABEL, IFNAMSIZ, &ifa->ifa_label);
-        nlh->nlmsg_len = skb->tail - b;
-        return skb->len;
+                NLA_PUT_STRING(skb, IFA_LABEL, ifa->ifa_label);
+
+        return nlmsg_end(skb, nlh);
 
-nlmsg_failure:
-rtattr_failure:
-        skb_trim(skb, b - skb->data);
-        return -1;
+nla_put_failure:
+        return nlmsg_cancel(skb, nlh);
 }
 
 static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
@@ -1185,17 +1190,16 @@ done:
 
 static void rtmsg_ifa(int event, struct in_ifaddr* ifa)
 {
-        int size = NLMSG_SPACE(sizeof(struct ifaddrmsg) + 128);
-        struct sk_buff *skb = alloc_skb(size, GFP_KERNEL);
+        struct sk_buff *skb;
 
-        if (!skb)
+        skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+        if (skb == NULL)
                 netlink_set_err(rtnl, 0, RTNLGRP_IPV4_IFADDR, ENOBUFS);
         else if (inet_fill_ifaddr(skb, ifa, 0, 0, event, 0) < 0) {
                 kfree_skb(skb);
                 netlink_set_err(rtnl, 0, RTNLGRP_IPV4_IFADDR, EINVAL);
-        } else {
+        } else
                 netlink_broadcast(rtnl, skb, 0, RTNLGRP_IPV4_IFADDR, GFP_KERNEL);
-        }
 }
 
 static struct rtnetlink_link inet_rtnetlink_table[RTM_NR_MSGTYPES] = {