[IPv6] route: FIB6 configuration using struct fib6_config

Replaces the struct in6_rtmsg based interface orignating from
the ioctl interface with a struct fib6_config based on. Allows
changing the interface without breaking the ioctl interface
and avoids passing on tons of parameters.

The recently introduced struct nl_info is used to pass on
netlink authorship information for notifications.

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

1 files changed, 31 insertions, 34 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index aafba9ea9cb6..fc9cff3426c4 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1509,59 +1509,56 @@ static void
 addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
                       unsigned long expires, u32 flags)
 {
-        struct in6_rtmsg rtmsg;
+        struct fib6_config cfg = {
+                .fc_table = RT6_TABLE_PREFIX,
+                .fc_metric = IP6_RT_PRIO_ADDRCONF,
+                .fc_ifindex = dev->ifindex,
+                .fc_expires = expires,
+                .fc_dst_len = plen,
+                .fc_flags = RTF_UP | flags,
+        };
 
-        memset(&rtmsg, 0, sizeof(rtmsg));
-        ipv6_addr_copy(&rtmsg.rtmsg_dst, pfx);
-        rtmsg.rtmsg_dst_len = plen;
-        rtmsg.rtmsg_metric = IP6_RT_PRIO_ADDRCONF;
-        rtmsg.rtmsg_ifindex = dev->ifindex;
-        rtmsg.rtmsg_info = expires;
-        rtmsg.rtmsg_flags = RTF_UP|flags;
-        rtmsg.rtmsg_type = RTMSG_NEWROUTE;
+        ipv6_addr_copy(&cfg.fc_dst, pfx);
 
         /* Prevent useless cloning on PtP SIT.
            This thing is done here expecting that the whole
            class of non-broadcast devices need not cloning.
          */
-        if (dev->type == ARPHRD_SIT && (dev->flags&IFF_POINTOPOINT))
-                rtmsg.rtmsg_flags |= RTF_NONEXTHOP;
+        if (dev->type == ARPHRD_SIT && (dev->flags & IFF_POINTOPOINT))
+                cfg.fc_flags |= RTF_NONEXTHOP;
 
-        ip6_route_add(&rtmsg, NULL, NULL, NULL, RT6_TABLE_PREFIX);
+        ip6_route_add(&cfg);
 }
 
 /* Create "default" multicast route to the interface */
 
 static void addrconf_add_mroute(struct net_device *dev)
 {
-        struct in6_rtmsg rtmsg;
-
-        memset(&rtmsg, 0, sizeof(rtmsg));
-        ipv6_addr_set(&rtmsg.rtmsg_dst,
-                      htonl(0xFF000000), 0, 0, 0);
-        rtmsg.rtmsg_dst_len = 8;
-        rtmsg.rtmsg_metric = IP6_RT_PRIO_ADDRCONF;
-        rtmsg.rtmsg_ifindex = dev->ifindex;
-        rtmsg.rtmsg_flags = RTF_UP;
-        rtmsg.rtmsg_type = RTMSG_NEWROUTE;
-        ip6_route_add(&rtmsg, NULL, NULL, NULL, RT6_TABLE_LOCAL);
+        struct fib6_config cfg = {
+                .fc_table = RT6_TABLE_LOCAL,
+                .fc_metric = IP6_RT_PRIO_ADDRCONF,
+                .fc_ifindex = dev->ifindex,
+                .fc_dst_len = 8,
+                .fc_flags = RTF_UP,
+        };
+
+        ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0);
+
+        ip6_route_add(&cfg);
 }
 
 static void sit_route_add(struct net_device *dev)
 {
-        struct in6_rtmsg rtmsg;
-
-        memset(&rtmsg, 0, sizeof(rtmsg));
-
-        rtmsg.rtmsg_type        = RTMSG_NEWROUTE;
-        rtmsg.rtmsg_metric      = IP6_RT_PRIO_ADDRCONF;
+        struct fib6_config cfg = {
+                .fc_table = RT6_TABLE_MAIN,
+                .fc_metric = IP6_RT_PRIO_ADDRCONF,
+                .fc_ifindex = dev->ifindex,
+                .fc_dst_len = 96,
+                .fc_flags = RTF_UP | RTF_NONEXTHOP,
+        };
 
         /* prefix length - 96 bits "::d.d.d.d" */
-        rtmsg.rtmsg_dst_len     = 96;
-        rtmsg.rtmsg_flags       = RTF_UP|RTF_NONEXTHOP;
-        rtmsg.rtmsg_ifindex     = dev->ifindex;
-
-        ip6_route_add(&rtmsg, NULL, NULL, NULL, RT6_TABLE_MAIN);
+        ip6_route_add(&cfg);
 }
 
 static void addrconf_add_lroute(struct net_device *dev)