IPv6 FIB configuration conversions

Index: net-2.6.19.git/include/net/ip6_route.h
===================================================================
@@ -69,10 +69,7 @@ extern int			ip6_ins_rt(struct rt6_info 
 					   struct nlmsghdr *,
 					   void *rtattr,
 					   struct netlink_skb_parms *req);
-extern int			ip6_del_rt(struct rt6_info *,
-					   struct nlmsghdr *,
-					   void *rtattr,
-					   struct netlink_skb_parms *req);
+extern int			ip6_del_rt(struct rt6_info *);
 
 extern int			ip6_rt_addr_add(struct in6_addr *addr,
 						struct net_device *dev,

Index: net-2.6.19.git/net/ipv6/addrconf.c
===================================================================
@@ -736,7 +736,7 @@ static void ipv6_del_addr(struct inet6_i
 
 		if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
 			if (onlink == 0) {
-				ip6_del_rt(rt, NULL, NULL, NULL);
+				ip6_del_rt(rt);
 				rt = NULL;
 			} else if (!(rt->rt6i_flags & RTF_EXPIRES)) {
 				rt->rt6i_expires = expires;

@@ -1662,7 +1662,7 @@ void addrconf_prefix_rcv(struct net_devi
 		if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
 			if (rt->rt6i_flags&RTF_EXPIRES) {
 				if (valid_lft == 0) {
-					ip6_del_rt(rt, NULL, NULL, NULL);
+					ip6_del_rt(rt);
 					rt = NULL;
 				} else {
 					rt->rt6i_expires = jiffies + rt_expires;

@@ -3557,7 +3557,7 @@ static void __ipv6_ifa_notify(int event,
 			addrconf_leave_anycast(ifp);
 		addrconf_leave_solict(ifp->idev, &ifp->addr);
 		dst_hold(&ifp->rt->u.dst);
-		if (ip6_del_rt(ifp->rt, NULL, NULL, NULL))
+		if (ip6_del_rt(ifp->rt))
 			dst_free(&ifp->rt->u.dst);
 		break;
 	}

Index: net-2.6.19.git/net/ipv6/ndisc.c
===================================================================
@@ -961,7 +961,7 @@ static void ndisc_recv_na(struct sk_buff
 			struct rt6_info *rt;
 			rt = rt6_get_dflt_router(saddr, dev);
 			if (rt)
-				ip6_del_rt(rt, NULL, NULL, NULL);
+				ip6_del_rt(rt);
 		}
 
 out:

@@ -1114,7 +1114,7 @@ static void ndisc_router_discovery(struc
 
 	if (rt && lifetime == 0) {
 		neigh_clone(neigh);
-		ip6_del_rt(rt, NULL, NULL, NULL);
+		ip6_del_rt(rt);
 		rt = NULL;
 	}
 

Index: net-2.6.19.git/net/ipv6/route.c
===================================================================
@@ -457,7 +457,7 @@ int rt6_route_rcv(struct net_device *dev
 	rt = rt6_get_route_info(prefix, rinfo->prefix_len, gwaddr, dev->ifindex);
 
 	if (rt && !lifetime) {
-		ip6_del_rt(rt, NULL, NULL, NULL);
+		ip6_del_rt(rt);
 		rt = NULL;
 	}
 

@@ -813,7 +813,7 @@ static struct dst_entry *ip6_negative_ad
 
 	if (rt) {
 		if (rt->rt6i_flags & RTF_CACHE)
-			ip6_del_rt(rt, NULL, NULL, NULL);
+			ip6_del_rt(rt);
 		else
 			dst_release(dst);
 	}

@@ -1218,7 +1218,8 @@ out:
 	return err;
 }
 
-int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
+static int __ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
+			void *_rtattr, struct netlink_skb_parms *req)
 {
 	int err;
 	struct fib6_table *table;

@@ -1237,6 +1238,11 @@ int ip6_del_rt(struct rt6_info *rt, stru
 	return err;
 }
 
+int ip6_del_rt(struct rt6_info *rt)
+{
+	return __ip6_del_rt(rt, NULL, NULL, NULL);
+}
+
 static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh,
 			 void *_rtattr, struct netlink_skb_parms *req,
 			 u32 table_id)

@@ -1271,7 +1277,7 @@ static int ip6_route_del(struct in6_rtms
 			dst_hold(&rt->u.dst);
 			read_unlock_bh(&table->tb6_lock);
 
-			return ip6_del_rt(rt, nlh, _rtattr, req);
+			return __ip6_del_rt(rt, nlh, _rtattr, req);
 		}
 	}
 	read_unlock_bh(&table->tb6_lock);

@@ -1395,7 +1401,7 @@ restart:
 	call_netevent_notifiers(NETEVENT_REDIRECT, &netevent);
 
 	if (rt->rt6i_flags&RTF_CACHE) {
-		ip6_del_rt(rt, NULL, NULL, NULL);
+		ip6_del_rt(rt);
 		return;
 	}
 

@@ -1631,7 +1637,7 @@ restart:
 		if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) {
 			dst_hold(&rt->u.dst);
 			read_unlock_bh(&table->tb6_lock);
-			ip6_del_rt(rt, NULL, NULL, NULL);
+			ip6_del_rt(rt);
 			goto restart;
 		}
 	}

Index: net-2.6.19.git/include/net/ip6_route.h
===================================================================
@@ -65,10 +65,7 @@ extern int			ip6_route_add(struct in6_rt
 					      void *rtattr,
 					      struct netlink_skb_parms *req,
 					      u32 table_id);
-extern int			ip6_ins_rt(struct rt6_info *,
-					   struct nlmsghdr *,
-					   void *rtattr,
-					   struct netlink_skb_parms *req);
+extern int			ip6_ins_rt(struct rt6_info *);
 extern int			ip6_del_rt(struct rt6_info *);
 
 extern int			ip6_rt_addr_add(struct in6_addr *addr,

Index: net-2.6.19.git/net/ipv6/route.c
===================================================================
@@ -546,8 +546,8 @@ struct rt6_info *rt6_lookup(struct in6_a
    be destroyed.
  */
 
-int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
-		void *_rtattr, struct netlink_skb_parms *req)
+static int __ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
+			void *_rtattr, struct netlink_skb_parms *req)
 {
 	int err;
 	struct fib6_table *table;

@@ -560,6 +560,11 @@ int ip6_ins_rt(struct rt6_info *rt, stru
 	return err;
 }
 
+int ip6_ins_rt(struct rt6_info *rt)
+{
+	return __ip6_ins_rt(rt, NULL, NULL, NULL);
+}
+
 static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *daddr,
 				      struct in6_addr *saddr)
 {

@@ -657,7 +662,7 @@ restart:
 
 	dst_hold(&rt->u.dst);
 	if (nrt) {
-		err = ip6_ins_rt(nrt, NULL, NULL, NULL);
+		err = ip6_ins_rt(nrt);
 		if (!err)
 			goto out2;
 	}

@@ -752,7 +757,7 @@ restart:
 
 	dst_hold(&rt->u.dst);
 	if (nrt) {
-		err = ip6_ins_rt(nrt, NULL, NULL, NULL);
+		err = ip6_ins_rt(nrt);
 		if (!err)
 			goto out2;
 	}

@@ -1206,7 +1211,7 @@ install_route:
 	rt->u.dst.dev = dev;
 	rt->rt6i_idev = idev;
 	rt->rt6i_table = table;
-	return ip6_ins_rt(rt, nlh, _rtattr, req);
+	return __ip6_ins_rt(rt, nlh, _rtattr, req);
 
 out:
 	if (dev)

@@ -1393,7 +1398,7 @@ restart:
 	nrt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(neigh->dev);
 	nrt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&nrt->u.dst));
 
-	if (ip6_ins_rt(nrt, NULL, NULL, NULL))
+	if (ip6_ins_rt(nrt))
 		goto out;
 
 	netevent.old = &rt->u.dst;

@@ -1483,7 +1488,7 @@ void rt6_pmtu_discovery(struct in6_addr 
 		dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
 		nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
 
-		ip6_ins_rt(nrt, NULL, NULL, NULL);
+		ip6_ins_rt(nrt);
 	}
 out:
 	dst_release(&rt->u.dst);

Index: net-2.6.19.git/net/ipv6/addrconf.c
===================================================================
@@ -3548,7 +3548,7 @@ static void __ipv6_ifa_notify(int event,
 
 	switch (event) {
 	case RTM_NEWADDR:
-		ip6_ins_rt(ifp->rt, NULL, NULL, NULL);
+		ip6_ins_rt(ifp->rt);
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
 		break;

Index: net-2.6.19.git/net/ipv6/anycast.c
===================================================================
@@ -335,7 +335,7 @@ int ipv6_dev_ac_inc(struct net_device *d
 	write_unlock_bh(&idev->lock);
 
 	dst_hold(&rt->u.dst);
-	if (ip6_ins_rt(rt, NULL, NULL, NULL))
+	if (ip6_ins_rt(rt))
 		dst_release(&rt->u.dst);
 
 	addrconf_join_solict(dev, &aca->aca_addr);

Index: net-2.6.19.git/include/net/ip6_fib.h
===================================================================
@@ -16,14 +16,35 @@
 #ifdef __KERNEL__
 
 #include <linux/ipv6_route.h>
-
-#include <net/dst.h>
-#include <net/flow.h>
 #include <linux/rtnetlink.h>
 #include <linux/spinlock.h>
+#include <net/dst.h>
+#include <net/flow.h>
+#include <net/netlink.h>
 
 struct rt6_info;
 
+struct fib6_config
+{
+	u32		fc_table;
+	u32		fc_metric;
+	int		fc_dst_len;
+	int		fc_src_len;
+	int		fc_ifindex;
+	u32		fc_flags;
+	u32		fc_protocol;
+
+	struct in6_addr	fc_dst;
+	struct in6_addr	fc_src;
+	struct in6_addr	fc_gateway;
+
+	unsigned long	fc_expires;
+	struct nlattr	*fc_mx;
+	int		fc_mx_len;
+
+	struct nl_info	fc_nlinfo;
+};
+
 struct fib6_node
 {
 	struct fib6_node	*parent;

@@ -175,18 +196,13 @@ extern void			fib6_clean_all(int (*func)
 
 extern int			fib6_add(struct fib6_node *root,
 					 struct rt6_info *rt,
-					 struct nlmsghdr *nlh,
-					 void *rtattr,
-					 struct netlink_skb_parms *req);
+					 struct nl_info *info);
 
 extern int			fib6_del(struct rt6_info *rt,
-					 struct nlmsghdr *nlh,
-					 void *rtattr,
-					 struct netlink_skb_parms *req);
+					 struct nl_info *info);
 
 extern void			inet6_rt_notify(int event, struct rt6_info *rt,
-						struct nlmsghdr *nlh,
-						struct netlink_skb_parms *req);
+						struct nl_info *info);
 
 extern void			fib6_run_gc(unsigned long dummy);
 

89 lines not on this page · raw message

Index: net-2.6.19.git/net/ipv6/ip6_fib.c
===================================================================
@@ -610,7 +610,7 @@ insert_above:
  */
 
 static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
-		struct nlmsghdr *nlh,  struct netlink_skb_parms *req)
+			    struct nl_info *info)
 {
 	struct rt6_info *iter = NULL;
 	struct rt6_info **ins;

@@ -665,7 +665,7 @@ out:
 	*ins = rt;
 	rt->rt6i_node = fn;
 	atomic_inc(&rt->rt6i_ref);
-	inet6_rt_notify(RTM_NEWROUTE, rt, nlh, req);
+	inet6_rt_notify(RTM_NEWROUTE, rt, info);
 	rt6_stats.fib_rt_entries++;
 
 	if ((fn->fn_flags & RTN_RTINFO) == 0) {

@@ -695,8 +695,7 @@ void fib6_force_start_gc(void)
  *	with source addr info in sub-trees
  */
 
-int fib6_add(struct fib6_node *root, struct rt6_info *rt, 
-		struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
+int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
 {
 	struct fib6_node *fn;
 	int err = -ENOMEM;

@@ -769,7 +768,7 @@ int fib6_add(struct fib6_node *root, str
 	}
 #endif
 
-	err = fib6_add_rt2node(fn, rt, nlh, req);
+	err = fib6_add_rt2node(fn, rt, info);
 
 	if (err == 0) {
 		fib6_start_gc(rt);

@@ -1076,7 +1075,7 @@ static struct fib6_node * fib6_repair_tr
 }
 
 static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
-    struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
+			   struct nl_info *info)
 {
 	struct fib6_walker_t *w;
 	struct rt6_info *rt = *rtp;

@@ -1132,11 +1131,11 @@ static void fib6_del_route(struct fib6_n
 		if (atomic_read(&rt->rt6i_ref) != 1) BUG();
 	}
 
-	inet6_rt_notify(RTM_DELROUTE, rt, nlh, req);
+	inet6_rt_notify(RTM_DELROUTE, rt, info);
 	rt6_release(rt);
 }
 
-int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
+int fib6_del(struct rt6_info *rt, struct nl_info *info)
 {
 	struct fib6_node *fn = rt->rt6i_node;
 	struct rt6_info **rtp;

@@ -1161,7 +1160,7 @@ int fib6_del(struct rt6_info *rt, struct
 
 	for (rtp = &fn->leaf; *rtp; rtp = &(*rtp)->u.next) {
 		if (*rtp == rt) {
-			fib6_del_route(fn, rtp, nlh, _rtattr, req);
+			fib6_del_route(fn, rtp, info);
 			return 0;
 		}
 	}

@@ -1290,7 +1289,7 @@ static int fib6_clean_node(struct fib6_w
 		res = c->func(rt, c->arg);
 		if (res < 0) {
 			w->leaf = rt;
-			res = fib6_del(rt, NULL, NULL, NULL);
+			res = fib6_del(rt, NULL);
 			if (res) {
 #if RT6_DEBUG >= 2
 				printk(KERN_DEBUG "fib6_clean_node: del failed: rt=%p@%p err=%d\n", rt, rt->rt6i_node, res);

555 lines not on this page · raw message

Index: net-2.6.19.git/include/net/ip6_route.h
===================================================================
@@ -60,11 +60,7 @@ extern void			ip6_route_cleanup(void);
 
 extern int			ipv6_route_ioctl(unsigned int cmd, void __user *arg);
 
-extern int			ip6_route_add(struct in6_rtmsg *rtmsg,
-					      struct nlmsghdr *,
-					      void *rtattr,
-					      struct netlink_skb_parms *req,
-					      u32 table_id);
+extern int			ip6_route_add(struct fib6_config *cfg);
 extern int			ip6_ins_rt(struct rt6_info *);
 extern int			ip6_del_rt(struct rt6_info *);
 

Index: net-2.6.19.git/net/core/rtnetlink.c
===================================================================
@@ -188,22 +188,27 @@ void rtnl_set_sk_err(u32 group, int erro
 
 int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
 {
-	struct rtattr *mx = (struct rtattr*)skb->tail;
-	int i;
+	struct nlattr *mx;
+	int i, valid = 0;
 
-	RTA_PUT(skb, RTA_METRICS, 0, NULL);
-	for (i=0; i<RTAX_MAX; i++) {
-		if (metrics[i])
-			RTA_PUT(skb, i+1, sizeof(u32), metrics+i);
-	}
-	mx->rta_len = skb->tail - (u8*)mx;
-	if (mx->rta_len == RTA_LENGTH(0))
-		skb_trim(skb, (u8*)mx - skb->data);
-	return 0;
+	mx = nla_nest_start(skb, RTA_METRICS);
+	if (mx == NULL)
+		return -ENOBUFS;
 
-rtattr_failure:
-	skb_trim(skb, (u8*)mx - skb->data);
-	return -1;
+	for (i = 0; i < RTAX_MAX; i++) {
+		if (metrics[i]) {
+			valid++;
+			NLA_PUT_U32(skb, i+1, metrics[i]);
+		}
+	}
+
+	if (!valid)
+		goto nla_put_failure;
+
+	return nla_nest_end(skb, mx);
+
+nla_put_failure:
+	return nla_nest_cancel(skb, mx);
 }
 
 

105 lines not on this page · raw message

Index: net-2.6.19.git/net/ipv6/route.c
===================================================================
@@ -1829,6 +1829,7 @@ void rt6_mtu_change(struct net_device *d
 static struct nla_policy rtm_ipv6_policy[RTA_MAX+1] __read_mostly = {
 	[RTA_GATEWAY]           = { .minlen = sizeof(struct in6_addr) },
 	[RTA_OIF]               = { .type = NLA_U32 },
+	[RTA_IIF]		= { .type = NLA_U32 },
 	[RTA_PRIORITY]          = { .type = NLA_U32 },
 	[RTA_METRICS]           = { .type = NLA_NESTED },
 };

@@ -2044,68 +2045,75 @@ int rt6_dump_route(struct rt6_info *rt, 
 
 int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
 {
-	struct rtattr **rta = arg;
-	int iif = 0;
-	int err = -ENOBUFS;
+	struct nlattr *tb[RTA_MAX+1];
+	struct rt6_info *rt;
 	struct sk_buff *skb;
+	struct rtmsg *rtm;
 	struct flowi fl;
-	struct rt6_info *rt;
+	int err, iif = 0;
 
-	skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
-	if (skb == NULL)
-		goto out;
-
-	/* Reserve room for dummy headers, this skb can pass
-	   through good chunk of routing engine.
-	 */
-	skb->mac.raw = skb->data;
-	skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
+	err = nlmsg_parse(nlh, sizeof(*rtm), tb, RTA_MAX, rtm_ipv6_policy);
+	if (err < 0)
+		goto errout;
 
+	err = -EINVAL;
 	memset(&fl, 0, sizeof(fl));
-	if (rta[RTA_SRC-1])
-		ipv6_addr_copy(&fl.fl6_src,
-			       (struct in6_addr*)RTA_DATA(rta[RTA_SRC-1]));
-	if (rta[RTA_DST-1])
-		ipv6_addr_copy(&fl.fl6_dst,
-			       (struct in6_addr*)RTA_DATA(rta[RTA_DST-1]));
 
-	if (rta[RTA_IIF-1])
-		memcpy(&iif, RTA_DATA(rta[RTA_IIF-1]), sizeof(int));
+	if (tb[RTA_SRC]) {
+		if (nla_len(tb[RTA_SRC]) < sizeof(struct in6_addr))
+			goto errout;
+
+		ipv6_addr_copy(&fl.fl6_src, nla_data(tb[RTA_SRC]));
+	}
+
+	if (tb[RTA_DST]) {
+		if (nla_len(tb[RTA_DST]) < sizeof(struct in6_addr))
+			goto errout;
+
+		ipv6_addr_copy(&fl.fl6_dst, nla_data(tb[RTA_DST]));
+	}
+
+	if (tb[RTA_IIF])
+		iif = nla_get_u32(tb[RTA_IIF]);
+
+	if (tb[RTA_OIF])
+		fl.oif = nla_get_u32(tb[RTA_OIF]);
 
 	if (iif) {
 		struct net_device *dev;
 		dev = __dev_get_by_index(iif);
 		if (!dev) {
 			err = -ENODEV;
-			goto out_free;
+			goto errout;
 		}
 	}
 
-	fl.oif = 0;
-	if (rta[RTA_OIF-1])
-		memcpy(&fl.oif, RTA_DATA(rta[RTA_OIF-1]), sizeof(int));
+	skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (skb == NULL) {
+		err = -ENOBUFS;
+		goto errout;
+	}
 
-	rt = (struct rt6_info*)ip6_route_output(NULL, &fl);
+	/* Reserve room for dummy headers, this skb can pass
+	   through good chunk of routing engine.
+	 */
+	skb->mac.raw = skb->data;
+	skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
 
+	rt = (struct rt6_info*) ip6_route_output(NULL, &fl);
 	skb->dst = &rt->u.dst;
 
-	NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid;
-	err = rt6_fill_node(skb, rt, 
-			    &fl.fl6_dst, &fl.fl6_src,
-			    iif,
+	err = rt6_fill_node(skb, rt, &fl.fl6_dst, &fl.fl6_src, iif,
 			    RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
 			    nlh->nlmsg_seq, 0, 0);
 	if (err < 0) {
-		err = -EMSGSIZE;
-		goto out_free;
+		kfree_skb(skb);
+		goto errout;
 	}
 
 	err = rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
-out:
+errout:
 	return err;
-out_free:
-	kfree_skb(skb);
-	goto out;	
 }
 
 void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)