[IPV4]: Use generic struct flowi as routing key.

include/net/flow.h

 /*
  *
- *	Flow based forwarding rules (usage: firewalling, etc)
+ *	Generic internet FLOW.
  *
  */
 
@@ -8,12 +8,16 @@
 #define _NET_FLOW_H
 
 struct flowi {
-	int	proto;		/*	{TCP, UDP, ICMP}	*/
+	int	oif;
+	int	iif;
 
 	union {
 		struct {
 			__u32			daddr;
 			__u32			saddr;
+			__u32			fwmark;
+			__u8			tos;
+			__u8			scope;
 		} ip4_u;
 		
 		struct {
@@ -27,9 +31,12 @@ struct flowi {
 #define fl6_flowlabel	nl_u.ip6_u.flowlabel
 #define fl4_dst		nl_u.ip4_u.daddr
 #define fl4_src		nl_u.ip4_u.saddr
+#define fl4_fwmark	nl_u.ip4_u.fwmark
+#define fl4_tos		nl_u.ip4_u.tos
+#define fl4_scope	nl_u.ip4_u.scope
 
-	int	oif;
-
+	__u8	proto;
+	__u8	flags;
 	union {
 		struct {
 			__u16	sport;
@@ -41,61 +48,8 @@ struct flowi {
 			__u8	code;
 		} icmpt;
 
-		unsigned long	data;
+		__u32		spi;
 	} uli_u;
 };
 
-#define FLOWR_NODECISION	0	/* rule not appliable to flow	*/
-#define FLOWR_SELECT		1	/* flow must follow this rule	*/
-#define FLOWR_CLEAR		2	/* priority level clears flow	*/
-#define FLOWR_ERROR		3
-
-struct fl_acc_args {
-	int	type;
-
-
-#define FL_ARG_FORWARD	1
-#define FL_ARG_ORIGIN	2
-
-	union {
-		struct sk_buff		*skb;
-		struct {
-			struct sock	*sk;
-			struct flowi	*flow;
-		} fl_o;
-	} fl_u;
-};
-
-
-struct pkt_filter {
-	atomic_t		refcnt;
-	unsigned int		offset;
-	__u32			value;
-	__u32			mask;
-	struct pkt_filter	*next;
-};
-
-#define FLR_INPUT		1
-#define FLR_OUTPUT		2
-
-struct flow_filter {
-	int				type;
-	union {
-		struct pkt_filter	*filter;
-		struct sock		*sk;
-	} u;
-};
-
-struct flow_rule {
-	struct flow_rule_ops		*ops;
-	unsigned char			private[0];
-};
-
-struct flow_rule_ops {
-	int			(*accept)(struct rt6_info *rt,
-					  struct rt6_info *rule,
-					  struct fl_acc_args *args,
-					  struct rt6_info **nrt);
-};
-
 #endif

include/net/ip6_fib.h

@@ -70,14 +70,6 @@ struct rt6_info
 	u8				rt6i_hoplimit;
 	atomic_t			rt6i_ref;
 
-	union {
-		struct flow_rule	*rt6iu_flowr;
-		struct flow_filter	*rt6iu_filter;
-	} flow_u;
-
-#define rt6i_flowr			flow_u.rt6iu_flowr
-#define rt6i_filter			flow_u.rt6iu_filter
-
 	struct rt6key			rt6i_dst;
 	struct rt6key			rt6i_src;
 };

include/net/ip6_fw.h

-#ifndef __NET_IP6_FW_H
-#define __NET_IP6_FW_H
-
-#define IP6_FW_LISTHEAD		0x1000
-#define IP6_FW_ACCEPT		0x0001
-#define IP6_FW_REJECT		0x0002
-
-#define IP6_FW_DEBUG	2
-
-#define IP6_FW_MSG_ADD		1
-#define IP6_FW_MSG_DEL		2
-#define IP6_FW_MSG_REPORT	3
-
-
-/*
- *	Fast "hack" user interface
- */
-struct ip6_fw_msg {
-	struct in6_addr		dst;
-	struct in6_addr		src;
-	int			dst_len;
-	int			src_len;
-	int			action;
-	int			policy;
-	int			proto;
-	union {
-		struct {
-			__u16	sport;
-			__u16	dport;
-		} transp;
-
-		unsigned long	data;
-
-		int		icmp_type;
-	} u;
-
-	int			msg_len;
-};
-
-#ifdef __KERNEL__
-
-#include <net/flow.h>
-
-struct ip6_fw_rule {
-	struct flow_rule	flowr;
-	struct ip6_fw_rule	*next;
-	struct ip6_fw_rule	*prev;
-	struct flowi		info;
-	unsigned long		policy;
-};
-
-#endif
-
-#endif

include/net/ip_fib.h

@@ -17,6 +17,7 @@
 #define _NET_IP_FIB_H
 
 #include <linux/config.h>
+#include <net/flow.h>
 
 struct kern_rta
 {
@@ -117,7 +118,7 @@ struct fib_table
 {
 	unsigned char	tb_id;
 	unsigned	tb_stamp;
-	int		(*tb_lookup)(struct fib_table *tb, const struct rt_key *key, struct fib_result *res);
+	int		(*tb_lookup)(struct fib_table *tb, const struct flowi *flp, struct fib_result *res);
 	int		(*tb_insert)(struct fib_table *table, struct rtmsg *r,
 				     struct kern_rta *rta, struct nlmsghdr *n,
 				     struct netlink_skb_parms *req);
@@ -130,7 +131,7 @@ struct fib_table
 	int		(*tb_get_info)(struct fib_table *table, char *buf,
 				       int first, int count);
 	void		(*tb_select_default)(struct fib_table *table,
-					     const struct rt_key *key, struct fib_result *res);
+					     const struct flowi *flp, struct fib_result *res);
 
 	unsigned char	tb_data[0];
 };
@@ -152,18 +153,18 @@ static inline struct fib_table *fib_new_table(int id)
 	return fib_get_table(id);
 }
 
-static inline int fib_lookup(const struct rt_key *key, struct fib_result *res)
+static inline int fib_lookup(const struct flowi *flp, struct fib_result *res)
 {
-	if (local_table->tb_lookup(local_table, key, res) &&
-	    main_table->tb_lookup(main_table, key, res))
+	if (local_table->tb_lookup(local_table, flp, res) &&
+	    main_table->tb_lookup(main_table, flp, res))
 		return -ENETUNREACH;
 	return 0;
 }
 
-static inline void fib_select_default(const struct rt_key *key, struct fib_result *res)
+static inline void fib_select_default(const struct flowi *flp, struct fib_result *res)
 {
 	if (FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
-		main_table->tb_select_default(main_table, key, res);
+		main_table->tb_select_default(main_table, flp, res);
 }
 
 #else /* CONFIG_IP_MULTIPLE_TABLES */
@@ -171,7 +172,7 @@ static inline void fib_select_default(const struct rt_key *key, struct fib_resul
 #define main_table (fib_tables[RT_TABLE_MAIN])
 
 extern struct fib_table * fib_tables[RT_TABLE_MAX+1];
-extern int fib_lookup(const struct rt_key *key, struct fib_result *res);
+extern int fib_lookup(const struct flowi *flp, struct fib_result *res);
 extern struct fib_table *__fib_new_table(int id);
 extern void fib_rule_put(struct fib_rule *r);
 
@@ -191,7 +192,7 @@ static inline struct fib_table *fib_new_table(int id)
 	return fib_tables[id] ? : __fib_new_table(id);
 }
 
-extern void fib_select_default(const struct rt_key *key, struct fib_result *res);
+extern void fib_select_default(const struct flowi *flp, struct fib_result *res);
 
 #endif /* CONFIG_IP_MULTIPLE_TABLES */
 
@@ -204,13 +205,13 @@ extern int inet_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *ar
 extern int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
 extern int fib_validate_source(u32 src, u32 dst, u8 tos, int oif,
 			       struct net_device *dev, u32 *spec_dst, u32 *itag);
-extern void fib_select_multipath(const struct rt_key *key, struct fib_result *res);
+extern void fib_select_multipath(const struct flowi *flp, struct fib_result *res);
 
 /* Exported by fib_semantics.c */
 extern int 		ip_fib_check_default(u32 gw, struct net_device *dev);
 extern void		fib_release_info(struct fib_info *);
 extern int		fib_semantic_match(int type, struct fib_info *,
-					   const struct rt_key *, struct fib_result*);
+					   const struct flowi *, struct fib_result*);
 extern struct fib_info	*fib_create_info(const struct rtmsg *r, struct kern_rta *rta,
 					 const struct nlmsghdr *, int *err);
 extern int fib_nh_match(struct rtmsg *r, struct nlmsghdr *, struct kern_rta *rta, struct fib_info *fi);

include/net/route.h

@@ -27,6 +27,7 @@
 #include <linux/config.h>
 #include <net/dst.h>
 #include <net/inetpeer.h>
+#include <net/flow.h>
 #include <linux/in_route.h>
 #include <linux/rtnetlink.h>
 #include <linux/route.h>
@@ -45,19 +46,6 @@
 
 #define RT_CONN_FLAGS(sk)   (RT_TOS(inet_sk(sk)->tos) | sk->localroute)
 
-struct rt_key
-{
-	__u32			dst;
-	__u32			src;
-	int			iif;
-	int			oif;
-#ifdef CONFIG_IP_ROUTE_FWMARK
-	__u32			fwmark;
-#endif
-	__u8			tos;
-	__u8			scope;
-};
-
 struct inet_peer;
 struct rtable
 {
@@ -78,7 +66,7 @@ struct rtable
 	__u32			rt_gateway;
 
 	/* Cache lookup keys */
-	struct rt_key		key;
+	struct flowi		fl;
 
 	/* Miscellaneous cached information */
 	__u32			rt_spec_dst; /* RFC1122 specific destination */
@@ -124,7 +112,7 @@ extern void		ip_rt_redirect(u32 old_gw, u32 dst, u32 new_gw,
 				       u32 src, u8 tos, struct net_device *dev);
 extern void		ip_rt_advice(struct rtable **rp, int advice);
 extern void		rt_cache_flush(int how);
-extern int		ip_route_output_key(struct rtable **, const struct rt_key *key);
+extern int		ip_route_output_key(struct rtable **, const struct flowi *flp);
 extern int		ip_route_input(struct sk_buff*, u32 dst, u32 src, u8 tos, struct net_device *devin);
 extern unsigned short	ip_rt_frag_needed(struct iphdr *iph, unsigned short new_mtu);
 extern void		ip_rt_update_pmtu(struct dst_entry *dst, unsigned mtu);
@@ -136,16 +124,6 @@ extern int		ip_rt_ioctl(unsigned int cmd, void *arg);
 extern void		ip_rt_get_source(u8 *src, struct rtable *rt);
 extern int		ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb);
 
-/* Deprecated: use ip_route_output_key directly */
-static inline int ip_route_output(struct rtable **rp,
-				      u32 daddr, u32 saddr, u32 tos, int oif)
-{
-	struct rt_key key = { dst:daddr, src:saddr, oif:oif, tos:tos };
-
-	return ip_route_output_key(rp, &key);
-}
-
-
 static inline void ip_rt_put(struct rtable * rt)
 {
 	if (rt)
@@ -163,15 +141,20 @@ static inline char rt_tos2priority(u8 tos)
 
 static inline int ip_route_connect(struct rtable **rp, u32 dst, u32 src, u32 tos, int oif)
 {
+	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = dst,
+						 .saddr = src,
+						 .tos   = tos } },
+			    .oif = oif };
+
 	int err;
-	err = ip_route_output(rp, dst, src, tos, oif);
+	err = ip_route_output_key(rp, &fl);
 	if (err || (dst && src))
 		return err;
-	dst = (*rp)->rt_dst;
-	src = (*rp)->rt_src;
+	fl.fl4_dst = (*rp)->rt_dst;
+	fl.fl4_src = (*rp)->rt_src;
 	ip_rt_put(*rp);
 	*rp = NULL;
-	return ip_route_output(rp, dst, src, tos, oif);
+	return ip_route_output_key(rp, &fl);
 }
 
 extern void rt_bind_peer(struct rtable *rt, int create);

net/atm/clip.c

@@ -509,6 +509,7 @@ int clip_setentry(struct atm_vcc *vcc,u32 ip)
 	struct atmarp_entry *entry;
 	int error;
 	struct clip_vcc *clip_vcc;
+	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = ip, .tos = 1 } } };
 	struct rtable *rt;
 
 	if (vcc->push != clip_push) {
@@ -525,7 +526,7 @@ int clip_setentry(struct atm_vcc *vcc,u32 ip)
 		unlink_clip_vcc(clip_vcc);
 		return 0;
 	}
-	error = ip_route_output(&rt,ip,0,1,0);
+	error = ip_route_output_key(&rt,&fl);
 	if (error) return error;
 	neigh = __neigh_lookup(&clip_tbl,&ip,rt->u.dst.dev,1);
 	ip_rt_put(rt);

net/core/netfilter.c

@@ -563,13 +563,15 @@ int ip_route_me_harder(struct sk_buff **pskb)
 {
 	struct iphdr *iph = (*pskb)->nh.iph;
 	struct rtable *rt;
-	struct rt_key key = { dst:iph->daddr,
-			      src:iph->saddr,
-			      oif:(*pskb)->sk ? (*pskb)->sk->bound_dev_if : 0,
-			      tos:RT_TOS(iph->tos)|RTO_CONN,
+	struct flowi fl = { .nl_u = { .ip4_u =
+				      { .daddr = iph->daddr,
+					.saddr = iph->saddr,
+					.tos = RT_TOS(iph->tos)|RTO_CONN,
 #ifdef CONFIG_IP_ROUTE_FWMARK
-			      fwmark:(*pskb)->nfmark
+					.fwmark = (*pskb)->nfmark
 #endif
+				      } },
+			    .oif = (*pskb)->sk ? (*pskb)->sk->bound_dev_if : 0,
 			    };
 	struct net_device *dev_src = NULL;
 	int err;
@@ -578,10 +580,10 @@ int ip_route_me_harder(struct sk_buff **pskb)
 	   0 or a local address; however some non-standard hacks like
 	   ipt_REJECT.c:send_reset() can cause packets with foreign
            saddr to be appear on the NF_IP_LOCAL_OUT hook -MB */
-	if(key.src && !(dev_src = ip_dev_find(key.src)))
-		key.src = 0;
+	if(fl.fl4_src && !(dev_src = ip_dev_find(fl.fl4_src)))
+		fl.fl4_src = 0;
 
-	if ((err=ip_route_output_key(&rt, &key)) != 0) {
+	if ((err=ip_route_output_key(&rt, &fl)) != 0) {
 		printk("route_me_harder: ip_route_output_key(dst=%u.%u.%u.%u, src=%u.%u.%u.%u, oif=%d, tos=0x%x, fwmark=0x%lx) error %d\n",
 			NIPQUAD(iph->daddr), NIPQUAD(iph->saddr),
 			(*pskb)->sk ? (*pskb)->sk->bound_dev_if : 0,

net/ipv4/arp.c

@@ -347,11 +347,13 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
 
 static int arp_filter(__u32 sip, __u32 tip, struct net_device *dev)
 {
+	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = sip,
+						 .saddr = tip } } };
 	struct rtable *rt;
 	int flag = 0; 
 	/*unsigned long now; */
 
-	if (ip_route_output(&rt, sip, tip, 0, 0) < 0) 
+	if (ip_route_output_key(&rt, &fl) < 0) 
 		return 1;
 	if (rt->u.dst.dev != dev) { 
 		NET_INC_STATS_BH(ArpFilter);
@@ -890,8 +892,10 @@ int arp_req_set(struct arpreq *r, struct net_device * dev)
 	if (r->arp_flags & ATF_PERM)
 		r->arp_flags |= ATF_COM;
 	if (dev == NULL) {
+		struct flowi fl = { .nl_u = { .ip4_u = { .daddr = ip,
+							 .tos = RTO_ONLINK } } };
 		struct rtable * rt;
-		if ((err = ip_route_output(&rt, ip, 0, RTO_ONLINK, 0)) != 0)
+		if ((err = ip_route_output_key(&rt, &fl)) != 0)
 			return err;
 		dev = rt->u.dst.dev;
 		ip_rt_put(rt);
@@ -974,8 +978,10 @@ int arp_req_delete(struct arpreq *r, struct net_device * dev)
 	}
 
 	if (dev == NULL) {
+		struct flowi fl = { .nl_u = { .ip4_u = { .daddr = ip,
+							 .tos = RTO_ONLINK } } };
 		struct rtable * rt;
-		if ((err = ip_route_output(&rt, ip, 0, RTO_ONLINK, 0)) != 0)
+		if ((err = ip_route_output_key(&rt, &fl)) != 0)
 			return err;
 		dev = rt->u.dst.dev;
 		ip_rt_put(rt);

net/ipv4/fib_frontend.c

@@ -144,17 +144,15 @@ fib_get_procinfo(char *buffer, char **start, off_t offset, int length)
 
 struct net_device * ip_dev_find(u32 addr)
 {
-	struct rt_key key;
+	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = addr } } };
 	struct fib_result res;
 	struct net_device *dev = NULL;
 
-	memset(&key, 0, sizeof(key));
-	key.dst = addr;
 #ifdef CONFIG_IP_MULTIPLE_TABLES
 	res.r = NULL;
 #endif
 
-	if (!local_table || local_table->tb_lookup(local_table, &key, &res)) {
+	if (!local_table || local_table->tb_lookup(local_table, &fl, &res)) {
 		return NULL;
 	}
 	if (res.type != RTN_LOCAL)
@@ -170,7 +168,7 @@ struct net_device * ip_dev_find(u32 addr)
 
 unsigned inet_addr_type(u32 addr)
 {
-	struct rt_key		key;
+	struct flowi		fl = { .nl_u = { .ip4_u = { .daddr = addr } } };
 	struct fib_result	res;
 	unsigned ret = RTN_BROADCAST;
 
@@ -179,15 +177,13 @@ unsigned inet_addr_type(u32 addr)
 	if (MULTICAST(addr))
 		return RTN_MULTICAST;
 
-	memset(&key, 0, sizeof(key));
-	key.dst = addr;
 #ifdef CONFIG_IP_MULTIPLE_TABLES
 	res.r = NULL;
 #endif
 	
 	if (local_table) {
 		ret = RTN_UNICAST;
-		if (local_table->tb_lookup(local_table, &key, &res) == 0) {
+		if (local_table->tb_lookup(local_table, &fl, &res) == 0) {
 			ret = res.type;
 			fib_res_put(&res);
 		}
@@ -207,18 +203,15 @@ int fib_validate_source(u32 src, u32 dst, u8 tos, int oif,
 			struct net_device *dev, u32 *spec_dst, u32 *itag)
 {
 	struct in_device *in_dev;
-	struct rt_key key;
+	struct flowi fl = { .nl_u = { .ip4_u =
+				      { .daddr = src,
+					.saddr = dst,
+					.tos = tos } },
+			    .iif = oif };
 	struct fib_result res;
 	int no_addr, rpf;
 	int ret;
 
-	key.dst = src;
-	key.src = dst;
-	key.tos = tos;
-	key.oif = 0;
-	key.iif = oif;
-	key.scope = RT_SCOPE_UNIVERSE;
-
 	no_addr = rpf = 0;
 	read_lock(&inetdev_lock);
 	in_dev = __in_dev_get(dev);
@@ -231,7 +224,7 @@ int fib_validate_source(u32 src, u32 dst, u8 tos, int oif,
 	if (in_dev == NULL)
 		goto e_inval;
 
-	if (fib_lookup(&key, &res))
+	if (fib_lookup(&fl, &res))
 		goto last_resort;
 	if (res.type != RTN_UNICAST)
 		goto e_inval_res;
@@ -252,10 +245,10 @@ int fib_validate_source(u32 src, u32 dst, u8 tos, int oif,
 		goto last_resort;
 	if (rpf)
 		goto e_inval;
-	key.oif = dev->ifindex;
+	fl.oif = dev->ifindex;
 
 	ret = 0;
-	if (fib_lookup(&key, &res) == 0) {
+	if (fib_lookup(&fl, &res) == 0) {
 		if (res.type == RTN_UNICAST) {
 			*spec_dst = FIB_RES_PREFSRC(res);
 			ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;

net/ipv4/fib_hash.c

@@ -266,7 +266,7 @@ fn_new_zone(struct fn_hash *table, int z)
 }
 
 static int
-fn_hash_lookup(struct fib_table *tb, const struct rt_key *key, struct fib_result *res)
+fn_hash_lookup(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
 {
 	int err;
 	struct fn_zone *fz;
@@ -275,7 +275,7 @@ fn_hash_lookup(struct fib_table *tb, const struct rt_key *key, struct fib_result
 	read_lock(&fib_hash_lock);
 	for (fz = t->fn_zone_list; fz; fz = fz->fz_next) {
 		struct fib_node *f;
-		fn_key_t k = fz_key(key->dst, fz);
+		fn_key_t k = fz_key(flp->fl4_dst, fz);
 
 		for (f = fz_chain(k, fz); f; f = f->fn_next) {
 			if (!fn_key_eq(k, f->fn_key)) {
@@ -285,17 +285,17 @@ fn_hash_lookup(struct fib_table *tb, const struct rt_key *key, struct fib_result
 					continue;
 			}
 #ifdef CONFIG_IP_ROUTE_TOS
-			if (f->fn_tos && f->fn_tos != key->tos)
+			if (f->fn_tos && f->fn_tos != flp->fl4_tos)
 				continue;
 #endif
 			f->fn_state |= FN_S_ACCESSED;
 
 			if (f->fn_state&FN_S_ZOMBIE)
 				continue;
-			if (f->fn_scope < key->scope)
+			if (f->fn_scope < flp->fl4_scope)
 				continue;
 
-			err = fib_semantic_match(f->fn_type, FIB_INFO(f), key, res);
+			err = fib_semantic_match(f->fn_type, FIB_INFO(f), flp, res);
 			if (err == 0) {
 				res->type = f->fn_type;
 				res->scope = f->fn_scope;
@@ -338,7 +338,7 @@ static int fib_detect_death(struct fib_info *fi, int order,
 }
 
 static void
-fn_hash_select_default(struct fib_table *tb, const struct rt_key *key, struct fib_result *res)
+fn_hash_select_default(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
 {
 	int order, last_idx;
 	struct fib_node *f;

net/ipv4/fib_rules.c

@@ -307,28 +307,28 @@ static void fib_rules_attach(struct net_device *dev)
 	}
 }
 
-int fib_lookup(const struct rt_key *key, struct fib_result *res)
+int fib_lookup(const struct flowi *flp, struct fib_result *res)
 {
 	int err;
 	struct fib_rule *r, *policy;
 	struct fib_table *tb;
 
-	u32 daddr = key->dst;
-	u32 saddr = key->src;
+	u32 daddr = flp->fl4_dst;
+	u32 saddr = flp->fl4_src;
 
 FRprintk("Lookup: %u.%u.%u.%u <- %u.%u.%u.%u ",
-	NIPQUAD(key->dst), NIPQUAD(key->src));
+	NIPQUAD(flp->fl4_dst), NIPQUAD(flp->fl4_src));
 	read_lock(&fib_rules_lock);
 	for (r = fib_rules; r; r=r->r_next) {
 		if (((saddr^r->r_src) & r->r_srcmask) ||
 		    ((daddr^r->r_dst) & r->r_dstmask) ||
 #ifdef CONFIG_IP_ROUTE_TOS
-		    (r->r_tos && r->r_tos != key->tos) ||
+		    (r->r_tos && r->r_tos != flp->fl4_tos) ||
 #endif
 #ifdef CONFIG_IP_ROUTE_FWMARK
-		    (r->r_fwmark && r->r_fwmark != key->fwmark) ||
+		    (r->r_fwmark && r->r_fwmark != flp->fl4_fwmark) ||
 #endif
-		    (r->r_ifindex && r->r_ifindex != key->iif))
+		    (r->r_ifindex && r->r_ifindex != flp->iif))
 			continue;
 
 FRprintk("tb %d r %d ", r->r_table, r->r_action);
@@ -351,7 +351,7 @@ FRprintk("tb %d r %d ", r->r_table, r->r_action);
 
 		if ((tb = fib_get_table(r->r_table)) == NULL)
 			continue;
-		err = tb->tb_lookup(tb, key, res);
+		err = tb->tb_lookup(tb, flp, res);
 		if (err == 0) {
 			res->r = policy;
 			if (policy)
@@ -369,13 +369,13 @@ FRprintk("FAILURE\n");
 	return -ENETUNREACH;
 }
 
-void fib_select_default(const struct rt_key *key, struct fib_result *res)
+void fib_select_default(const struct flowi *flp, struct fib_result *res)
 {
 	if (res->r && res->r->r_action == RTN_UNICAST &&
 	    FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK) {
 		struct fib_table *tb;
 		if ((tb = fib_get_table(res->r->r_table)) != NULL)
-			tb->tb_select_default(tb, key, res);
+			tb->tb_select_default(tb, flp, res);
 	}
 }
 

net/ipv4/fib_semantics.c

@@ -349,7 +349,6 @@ static int fib_check_nh(const struct rtmsg *r, struct fib_info *fi, struct fib_n
 	int err;
 
 	if (nh->nh_gw) {
-		struct rt_key key;
 		struct fib_result res;
 
 #ifdef CONFIG_IP_ROUTE_PERVASIVE
@@ -372,16 +371,18 @@ static int fib_check_nh(const struct rtmsg *r, struct fib_info *fi, struct fib_n
 			nh->nh_scope = RT_SCOPE_LINK;
 			return 0;
 		}
-		memset(&key, 0, sizeof(key));
-		key.dst = nh->nh_gw;
-		key.oif = nh->nh_oif;
-		key.scope = r->rtm_scope + 1;
-
-		/* It is not necessary, but requires a bit of thinking */
-		if (key.scope < RT_SCOPE_LINK)
-			key.scope = RT_SCOPE_LINK;
-		if ((err = fib_lookup(&key, &res)) != 0)
-			return err;
+		{
+			struct flowi fl = { .nl_u = { .ip4_u =
+						      { .daddr = nh->nh_gw,
+							.scope = r->rtm_scope + 1 } },
+					    .oif = nh->nh_oif };
+
+			/* It is not necessary, but requires a bit of thinking */
+			if (fl.fl4_scope < RT_SCOPE_LINK)
+				fl.fl4_scope = RT_SCOPE_LINK;
+			if ((err = fib_lookup(&fl, &res)) != 0)
+				return err;
+		}
 		err = -EINVAL;
 		if (res.type != RTN_UNICAST && res.type != RTN_LOCAL)
 			goto out;
@@ -578,7 +579,7 @@ fib_create_info(const struct rtmsg *r, struct kern_rta *rta,
 }
 
 int 
-fib_semantic_match(int type, struct fib_info *fi, const struct rt_key *key, struct fib_result *res)
+fib_semantic_match(int type, struct fib_info *fi, const struct flowi *flp, struct fib_result *res)
 {
 	int err = fib_props[type].error;
 
@@ -603,7 +604,7 @@ fib_semantic_match(int type, struct fib_info *fi, const struct rt_key *key, stru
 			for_nexthops(fi) {
 				if (nh->nh_flags&RTNH_F_DEAD)
 					continue;
-				if (!key->oif || key->oif == nh->nh_oif)
+				if (!flp->oif || flp->oif == nh->nh_oif)
 					break;
 			}
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
@@ -949,7 +950,7 @@ int fib_sync_up(struct net_device *dev)
    fair weighted route distribution.
  */
 
-void fib_select_multipath(const struct rt_key *key, struct fib_result *res)
+void fib_select_multipath(const struct flowi *flp, struct fib_result *res)
 {
 	struct fib_info *fi = res->fi;
 	int w;

net/ipv4/icmp.c

@@ -418,9 +418,14 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
 		if (ipc.opt->srr)
 			daddr = icmp_param->replyopts.faddr;
 	}
-	if (ip_route_output(&rt, daddr, rt->rt_spec_dst,
-			    RT_TOS(skb->nh.iph->tos), 0))
-		goto out_unlock;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = daddr,
+						.saddr = rt->rt_spec_dst,
+						.tos = RT_TOS(skb->nh.iph->tos) } } };
+		if (ip_route_output_key(&rt, &fl))
+			goto out_unlock;
+	}
 	if (icmpv4_xrlim_allow(rt, icmp_param->data.icmph.type,
 			       icmp_param->data.icmph.code)) {
 		ip_build_xmit(sk, icmp_glue_bits, icmp_param,
@@ -526,8 +531,8 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info)
 	 *	Restore original addresses if packet has been translated.
 	 */
 	if (rt->rt_flags & RTCF_NAT && IPCB(skb_in)->flags & IPSKB_TRANSLATED) {
-		iph->daddr = rt->key.dst;
-		iph->saddr = rt->key.src;
+		iph->daddr = rt->fl.fl4_dst;
+		iph->saddr = rt->fl.fl4_src;
 	}
 #endif
 
@@ -539,9 +544,13 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info)
 					   IPTOS_PREC_INTERNETCONTROL) :
 					  iph->tos;
 
-	if (ip_route_output(&rt, iph->saddr, saddr, RT_TOS(tos), 0))
-		goto out_unlock;
-
+	{
+		struct flowi fl = { .nl_u = { .ip4_u = { .daddr = iph->saddr,
+							 .saddr = saddr,
+							 .tos = RT_TOS(tos) } } };
+		if (ip_route_output_key(&rt, &fl))
+		    goto out_unlock;
+	}
 	if (ip_options_echo(&icmp_param.replyopts, skb_in))
 		goto ende;
 
@@ -563,9 +572,12 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info)
 	ipc.addr = iph->saddr;
 	ipc.opt = &icmp_param.replyopts;
 	if (icmp_param.replyopts.srr) {
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = icmp_param.replyopts.faddr,
+						.saddr = saddr,
+						.tos = RT_TOS(tos) } } };
 		ip_rt_put(rt);
-		if (ip_route_output(&rt, icmp_param.replyopts.faddr,
-				    saddr, RT_TOS(tos), 0))
+		if (ip_route_output_key(&rt, &fl))
 			goto out_unlock;
 	}
 

net/ipv4/igmp.c

@@ -207,8 +207,12 @@ static int igmp_send_report(struct net_device *dev, u32 group, int type)
 	if (type == IGMP_HOST_LEAVE_MESSAGE)
 		dst = IGMP_ALL_ROUTER;
 
-	if (ip_route_output(&rt, dst, 0, 0, dev->ifindex))
-		return -1;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u = { .daddr = dst } },
+				    .oif = dev->ifindex };
+		if (ip_route_output_key(&rt, &fl))
+			return -1;
+	}
 	if (rt->rt_src == 0) {
 		ip_rt_put(rt);
 		return -1;
@@ -374,7 +378,7 @@ int igmp_rcv(struct sk_buff *skb)
 	case IGMP_HOST_MEMBERSHIP_REPORT:
 	case IGMP_HOST_NEW_MEMBERSHIP_REPORT:
 		/* Is it our report looped back? */
-		if (((struct rtable*)skb->dst)->key.iif == 0)
+		if (((struct rtable*)skb->dst)->fl.iif == 0)
 			break;
 		igmp_heard_report(in_dev, ih->group);
 		break;
@@ -608,6 +612,8 @@ void ip_mc_destroy_dev(struct in_device *in_dev)
 
 static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr)
 {
+	struct flowi fl = { .nl_u = { .ip4_u =
+				      { .daddr = imr->imr_address.s_addr } } };
 	struct rtable *rt;
 	struct net_device *dev = NULL;
 	struct in_device *idev = NULL;
@@ -619,7 +625,7 @@ static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr)
 		__dev_put(dev);
 	}
 
-	if (!dev && !ip_route_output(&rt, imr->imr_multiaddr.s_addr, 0, 0, 0)) {
+	if (!dev && !ip_route_output_key(&rt, &fl)) {
 		dev = rt->u.dst.dev;
 		ip_rt_put(rt);
 	}

net/ipv4/ip_gre.c

@@ -412,6 +412,7 @@ void ipgre_err(struct sk_buff *skb, u32 info)
 	u16 flags;
 	int grehlen = (iph->ihl<<2) + 4;
 	struct sk_buff *skb2;
+	struct flowi fl;
 	struct rtable *rt;
 
 	if (p[1] != htons(ETH_P_IP))
@@ -488,7 +489,10 @@ void ipgre_err(struct sk_buff *skb, u32 info)
 	skb2->nh.raw = skb2->data;
 
 	/* Try to guess incoming interface */
-	if (ip_route_output(&rt, eiph->saddr, 0, RT_TOS(eiph->tos), 0)) {
+	memset(&fl, 0, sizeof(fl));
+	fl.fl4_dst = eiph->saddr;
+	fl.fl4_tos = RT_TOS(eiph->tos);
+	if (ip_route_output_key(&rt, &fl)) {
 		kfree_skb(skb2);
 		return;
 	}
@@ -498,7 +502,10 @@ void ipgre_err(struct sk_buff *skb, u32 info)
 	if (rt->rt_flags&RTCF_LOCAL) {
 		ip_rt_put(rt);
 		rt = NULL;
-		if (ip_route_output(&rt, eiph->daddr, eiph->saddr, eiph->tos, 0) ||
+		fl.fl4_dst = eiph->daddr;
+		fl.fl4_src = eiph->saddr;
+		fl.fl4_tos = eiph->tos;
+		if (ip_route_output_key(&rt, &fl) ||
 		    rt->u.dst.dev->type != ARPHRD_IPGRE) {
 			ip_rt_put(rt);
 			kfree_skb(skb2);
@@ -619,7 +626,7 @@ int ipgre_rcv(struct sk_buff *skb)
 #ifdef CONFIG_NET_IPGRE_BROADCAST
 		if (MULTICAST(iph->daddr)) {
 			/* Looped back packet, drop it! */
-			if (((struct rtable*)skb->dst)->key.iif == 0)
+			if (((struct rtable*)skb->dst)->fl.iif == 0)
 				goto drop;
 			tunnel->stat.multicast++;
 			skb->pkt_type = PACKET_BROADCAST;
@@ -749,9 +756,16 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		tos &= ~1;
 	}
 
-	if (ip_route_output(&rt, dst, tiph->saddr, RT_TOS(tos), tunnel->parms.link)) {
-		tunnel->stat.tx_carrier_errors++;
-		goto tx_error;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = dst,
+						.saddr = tiph->saddr,
+						.tos = RT_TOS(tos) } },
+				    .oif = tunnel->parms.link };
+		if (ip_route_output_key(&rt, &fl)) {
+			tunnel->stat.tx_carrier_errors++;
+			goto tx_error;
+		}
 	}
 	tdev = rt->u.dst.dev;
 
@@ -1104,10 +1118,13 @@ static int ipgre_open(struct net_device *dev)
 
 	MOD_INC_USE_COUNT;
 	if (MULTICAST(t->parms.iph.daddr)) {
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = t->parms.iph.daddr,
+						.saddr = t->parms.iph.saddr,
+						.tos = RT_TOS(t->parms.iph.tos) } },
+				    .oif = t->parms.link };
 		struct rtable *rt;
-		if (ip_route_output(&rt, t->parms.iph.daddr,
-				    t->parms.iph.saddr, RT_TOS(t->parms.iph.tos), 
-				    t->parms.link)) {
+		if (ip_route_output_key(&rt, &fl)) {
 			MOD_DEC_USE_COUNT;
 			return -EADDRNOTAVAIL;
 		}
@@ -1177,8 +1194,13 @@ static int ipgre_tunnel_init(struct net_device *dev)
 	/* Guess output device to choose reasonable mtu and hard_header_len */
 
 	if (iph->daddr) {
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = iph->daddr,
+						.saddr = iph->saddr,
+						.tos = RT_TOS(iph->tos) } },
+				    .oif = tunnel->parms.link };
 		struct rtable *rt;
-		if (!ip_route_output(&rt, iph->daddr, iph->saddr, RT_TOS(iph->tos), tunnel->parms.link)) {
+		if (!ip_route_output_key(&rt, &fl)) {
 			tdev = rt->u.dst.dev;
 			ip_rt_put(rt);
 		}

net/ipv4/ip_nat_dumb.c

@@ -117,23 +117,21 @@ ip_do_nat(struct sk_buff *skb)
 			if (rt->rt_flags&RTCF_SNAT) {
 				if (ciph->daddr != osaddr) {
 					struct   fib_result res;
-					struct   rt_key key;
 					unsigned flags = 0;
-
-					key.src = ciph->daddr;
-					key.dst = ciph->saddr;
-					key.iif = skb->dev->ifindex;
-					key.oif = 0;
+					struct flowi fl = { .nl_u =
+							    { .ip4_u =
+							      { .daddr = ciph->saddr,
+								.saddr = ciph->daddr,
 #ifdef CONFIG_IP_ROUTE_TOS
-					key.tos = RT_TOS(ciph->tos);
-#endif
-#ifdef CONFIG_IP_ROUTE_FWMARK
-					key.fwmark = 0;
+								.tos = RT_TOS(ciph->tos)
 #endif
+							      } },
+							    .iif = skb->dev->ifindex };
+
 					/* Use fib_lookup() until we get our own
 					 * hash table of NATed hosts -- Rani
 				 	 */
-					if (fib_lookup(&key, &res) == 0) {
+					if (fib_lookup(&fl, &res) == 0) {
 						if (res.r) {
 							ciph->daddr = fib_rules_policy(ciph->daddr, &res, &flags);
 							if (ciph->daddr != idaddr)

net/ipv4/ip_output.c

@@ -372,14 +372,20 @@ int ip_queue_xmit(struct sk_buff *skb)
 		if(opt && opt->srr)
 			daddr = opt->faddr;
 
-		/* If this fails, retransmit mechanism of transport layer will
-		 * keep trying until route appears or the connection times itself
-		 * out.
-		 */
-		if (ip_route_output(&rt, daddr, inet->saddr,
-				    RT_CONN_FLAGS(sk),
-				    sk->bound_dev_if))
-			goto no_route;
+		{
+			struct flowi fl = { .nl_u = { .ip4_u =
+						      { .daddr = daddr,
+							.saddr = inet->saddr,
+							.tos = RT_CONN_FLAGS(sk) } },
+					    .oif = sk->bound_dev_if };
+
+			/* If this fails, retransmit mechanism of transport layer will
+			 * keep trying until route appears or the connection times itself
+			 * out.
+			 */
+			if (ip_route_output_key(&rt, &fl))
+				goto no_route;
+		}
 		__sk_dst_set(sk, &rt->u.dst);
 		tcp_v4_setup_caps(sk, &rt->u.dst);
 	}
@@ -991,8 +997,14 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 			daddr = replyopts.opt.faddr;
 	}
 
-	if (ip_route_output(&rt, daddr, rt->rt_spec_dst, RT_TOS(skb->nh.iph->tos), 0))
-		return;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = daddr,
+						.saddr = rt->rt_spec_dst,
+						.tos = RT_TOS(skb->nh.iph->tos) } } };
+		if (ip_route_output_key(&rt, &fl))
+			return;
+	}
 
 	/* And let IP do all the hard work.
 

net/ipv4/ipip.c

@@ -355,6 +355,7 @@ void ipip_err(struct sk_buff *skb, u32 info)
 	int rel_code = 0;
 	int rel_info = 0;
 	struct sk_buff *skb2;
+	struct flowi fl;
 	struct rtable *rt;
 
 	if (len < hlen + sizeof(struct iphdr))
@@ -417,7 +418,10 @@ void ipip_err(struct sk_buff *skb, u32 info)
 	skb2->nh.raw = skb2->data;
 
 	/* Try to guess incoming interface */
-	if (ip_route_output(&rt, eiph->saddr, 0, RT_TOS(eiph->tos), 0)) {
+	memset(&fl, 0, sizeof(fl));
+	fl.fl4_daddr = eiph->saddr;
+	fl.fl4_tos = RT_TOS(eiph->tos);
+	if (ip_route_output_key(&rt, &key)) {
 		kfree_skb(skb2);
 		return;
 	}
@@ -427,7 +431,10 @@ void ipip_err(struct sk_buff *skb, u32 info)
 	if (rt->rt_flags&RTCF_LOCAL) {
 		ip_rt_put(rt);
 		rt = NULL;
-		if (ip_route_output(&rt, eiph->daddr, eiph->saddr, eiph->tos, 0) ||
+		fl.fl4_daddr = eiph->daddr;
+		fl.fl4_src = eiph->saddr;
+		fl.fl4_tos = eiph->tos;
+		if (ip_route_output_key(&rt, &fl) ||
 		    rt->u.dst.dev->type != ARPHRD_IPGRE) {
 			ip_rt_put(rt);
 			kfree_skb(skb2);
@@ -560,9 +567,16 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 			goto tx_error_icmp;
 	}
 
-	if (ip_route_output(&rt, dst, tiph->saddr, RT_TOS(tos), tunnel->parms.link)) {
-		tunnel->stat.tx_carrier_errors++;
-		goto tx_error_icmp;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = dst,
+						.saddr = tiph->saddr,
+						.tos = RT_TOS(tos) } },
+				    .oif = tunnel->parms.link };
+		if (ip_route_output_key(&rt, &fl)) {
+			tunnel->stat.tx_carrier_errors++;
+			goto tx_error_icmp;
+		}
 	}
 	tdev = rt->u.dst.dev;
 
@@ -822,8 +836,13 @@ static int ipip_tunnel_init(struct net_device *dev)
 	ipip_tunnel_init_gen(dev);
 
 	if (iph->daddr) {
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = iph->daddr,
+						.saddr = iph->saddr,
+						.tos = RT_TOS(iph->tos) } },
+				    .oif = tunnel->parms.link };
 		struct rtable *rt;
-		if (!ip_route_output(&rt, iph->daddr, iph->saddr, RT_TOS(iph->tos), tunnel->parms.link)) {
+		if (!ip_route_output_key(&rt, &fl)) {
 			tdev = rt->u.dst.dev;
 			ip_rt_put(rt);
 		}

net/ipv4/ipmr.c

@@ -1146,11 +1146,20 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c,
 #endif
 
 	if (vif->flags&VIFF_TUNNEL) {
-		if (ip_route_output(&rt, vif->remote, vif->local, RT_TOS(iph->tos), vif->link))
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = vif->remote,
+						.saddr = vif->local,
+						.tos = RT_TOS(iph->tos) } },
+				    .oif = vif->link };
+		if (ip_route_output_key(&rt, &fl))
 			return;
 		encap = sizeof(struct iphdr);
 	} else {
-		if (ip_route_output(&rt, iph->daddr, 0, RT_TOS(iph->tos), vif->link))
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = iph->daddr,
+						.tos = RT_TOS(iph->tos) } },
+				    .oif = vif->link };
+		if (ip_route_output_key(&rt, &fl))
 			return;
 	}
 
@@ -1244,7 +1253,7 @@ int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local)
 	if (vif_table[vif].dev != skb->dev) {
 		int true_vifi;
 
-		if (((struct rtable*)skb->dst)->key.iif == 0) {
+		if (((struct rtable*)skb->dst)->fl.iif == 0) {
 			/* It is our own packet, looped back.
 			   Very complicated situation...
 

net/ipv4/netfilter/ip_fw_compat_masq.c

@@ -68,12 +68,13 @@ do_masquerade(struct sk_buff **pskb, const struct net_device *dev)
 	/* Setup the masquerade, if not already */
 	if (!info->initialized) {
 		u_int32_t newsrc;
+		struct flowi fl = { .nl_u = { .ip4_u = { .daddr = iph->daddr } } };
 		struct rtable *rt;
 		struct ip_nat_multi_range range;
 
 		/* Pass 0 instead of saddr, since it's going to be changed
 		   anyway. */
-		if (ip_route_output(&rt, iph->daddr, 0, 0, 0) != 0) {
+		if (ip_route_output_key(&rt, &fl) != 0) {
 			DEBUGP("ipnat_rule_masquerade: Can't reroute.\n");
 			return NF_DROP;
 		}

net/ipv4/netfilter/ip_nat_core.c

@@ -209,10 +209,11 @@ find_appropriate_src(const struct ip_conntrack_tuple *tuple,
 static int
 do_extra_mangle(u_int32_t var_ip, u_int32_t *other_ipp)
 {
+	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = var_ip } } };
 	struct rtable *rt;
 
 	/* FIXME: IPTOS_TOS(iph->tos) --RR */
-	if (ip_route_output(&rt, var_ip, 0, 0, 0) != 0) {
+	if (ip_route_output_key(&rt, &fl) != 0) {
 		DEBUGP("do_extra_mangle: Can't get route to %u.%u.%u.%u\n",
 		       NIPQUAD(var_ip));
 		return 0;

net/ipv4/netfilter/ipt_MASQUERADE.c

@@ -69,7 +69,6 @@ masquerade_target(struct sk_buff **pskb,
 	struct ip_nat_multi_range newrange;
 	u_int32_t newsrc;
 	struct rtable *rt;
-	struct rt_key key;
 
 	IP_NF_ASSERT(hooknum == NF_IP_POST_ROUTING);
 
@@ -84,17 +83,21 @@ masquerade_target(struct sk_buff **pskb,
 
 	mr = targinfo;
 
-	key.dst = (*pskb)->nh.iph->daddr;
-	key.src = 0; /* Unknown: that's what we're trying to establish */
-	key.tos = RT_TOS((*pskb)->nh.iph->tos)|RTO_CONN;
-	key.oif = out->ifindex;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = (*pskb)->nh.iph->daddr,
+						.tos = (RT_TOS((*pskb)->nh.iph->tos) |
+							RTO_CONN),
 #ifdef CONFIG_IP_ROUTE_FWMARK
-	key.fwmark = (*pskb)->nfmark;
+						.fwmark = (*pskb)->nfmark
 #endif
-	if (ip_route_output_key(&rt, &key) != 0) {
-		/* Shouldn't happen */
-		printk("MASQUERADE: No route: Rusty's brain broke!\n");
-		return NF_DROP;
+					      } },
+				    .oif = out->ifindex };
+		if (ip_route_output_key(&rt, &fl) != 0) {
+			/* Shouldn't happen */
+			printk("MASQUERADE: No route: Rusty's brain broke!\n");
+			return NF_DROP;
+		}
 	}
 
 	newsrc = rt->rt_src;

net/ipv4/netfilter/ipt_MIRROR.c

@@ -44,12 +44,13 @@ struct in_device;
 static int route_mirror(struct sk_buff *skb)
 {
         struct iphdr *iph = skb->nh.iph;
+	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = iph->saddr,
+						 .saddr = iph->daddr,
+						 .tos = RT_TOS(iph->tos) | RTO_CONN } } };
 	struct rtable *rt;
 
 	/* Backwards */
-	if (ip_route_output(&rt, iph->saddr, iph->daddr,
-			    RT_TOS(iph->tos) | RTO_CONN,
-			    0)) {
+	if (ip_route_output_key(&rt, &fl)) {
 		return 0;
 	}
 

net/ipv4/netfilter/ipt_REJECT.c

@@ -130,12 +130,19 @@ static void send_reset(struct sk_buff *oldskb, int local)
 	nskb->nh.iph->check = ip_fast_csum((unsigned char *)nskb->nh.iph, 
 					   nskb->nh.iph->ihl);
 
-	/* Routing: if not headed for us, route won't like source */
-	if (ip_route_output(&rt, nskb->nh.iph->daddr,
-			    local ? nskb->nh.iph->saddr : 0,
-			    RT_TOS(nskb->nh.iph->tos) | RTO_CONN,
-			    0) != 0)
-		goto free_nskb;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = nskb->nh.iph->daddr,
+						.saddr = (local ?
+							  nskb->nh.iph->saddr :
+							  0),
+						.tos = (RT_TOS(nskb->nh.iph->tos) |
+							RTO_CONN) } } };
+
+		/* Routing: if not headed for us, route won't like source */
+		if (ip_route_output_key(&rt, &fl))
+			goto free_nskb;
+	}
 
 	dst_release(nskb->dst);
 	nskb->dst = &rt->u.dst;
@@ -207,9 +214,14 @@ static void send_unreach(struct sk_buff *skb_in, int code)
 
 	tos = (iph->tos & IPTOS_TOS_MASK) | IPTOS_PREC_INTERNETCONTROL;
 
-	if (ip_route_output(&rt, iph->saddr, saddr, RT_TOS(tos), 0))
-		return;
-
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = iph->saddr,
+						.saddr = saddr,
+						.tos = RT_TOS(tos) } } };
+		if (ip_route_output_key(&rt, &fl))
+			return;
+	}
 	/* RFC says return as much as we can without exceeding 576 bytes. */
 	length = skb_in->len + sizeof(struct iphdr) + sizeof(struct icmphdr);
 

net/ipv4/raw.c

@@ -402,8 +402,14 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, int len)
 			rfh.saddr = inet->mc_addr;
 	}
 
-	err = ip_route_output(&rt, daddr, rfh.saddr, tos, ipc.oif);
-
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = daddr,
+						.saddr = rfh.saddr,
+						.tos = tos } },
+				    .oif = ipc.oif };
+		err = ip_route_output_key(&rt, &fl);
+	}
 	if (err)
 		goto done;
 

net/ipv4/route.c

@@ -251,7 +251,7 @@ static int rt_cache_get_info(char *buffer, char **start, off_t offset,
 				(int)r->u.dst.advmss + 40,
 				r->u.dst.window,
 				(int)((r->u.dst.rtt >> 3) + r->u.dst.rttvar),
-				r->key.tos,
+				r->fl.fl4_tos,
 				r->u.dst.hh ?
 					atomic_read(&r->u.dst.hh->hh_refcnt) :
 					-1,
@@ -332,7 +332,7 @@ static __inline__ int rt_fast_clean(struct rtable *rth)
 	/* Kill broadcast/multicast entries very aggresively, if they
 	   collide in hash table with more useful entries */
 	return (rth->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST)) &&
-		rth->key.iif && rth->u.rt_next;
+		rth->fl.iif && rth->u.rt_next;
 }
 
 static __inline__ int rt_valuable(struct rtable *rth)
@@ -621,7 +621,7 @@ static int rt_intern_hash(unsigned hash, struct rtable *rt, struct rtable **rp)
 
 	write_lock_bh(&rt_hash_table[hash].lock);
 	while ((rth = *rthp) != NULL) {
-		if (memcmp(&rth->key, &rt->key, sizeof(rt->key)) == 0) {
+		if (memcmp(&rth->fl, &rt->fl, sizeof(rt->fl)) == 0) {
 			/* Put it first */
 			*rthp = rth->u.rt_next;
 			rth->u.rt_next = rt_hash_table[hash].chain;
@@ -643,7 +643,7 @@ static int rt_intern_hash(unsigned hash, struct rtable *rt, struct rtable **rp)
 	/* Try to bind route to arp only if it is output
 	   route or unicast forwarding path.
 	 */
-	if (rt->rt_type == RTN_UNICAST || rt->key.iif == 0) {
+	if (rt->rt_type == RTN_UNICAST || rt->fl.iif == 0) {
 		int err = arp_bind_neighbour(&rt->u.dst);
 		if (err) {
 			write_unlock_bh(&rt_hash_table[hash].lock);
@@ -806,11 +806,11 @@ void ip_rt_redirect(u32 old_gw, u32 daddr, u32 new_gw,
 			while ((rth = *rthp) != NULL) {
 				struct rtable *rt;
 
-				if (rth->key.dst != daddr ||
-				    rth->key.src != skeys[i] ||
-				    rth->key.tos != tos ||
-				    rth->key.oif != ikeys[k] ||
-				    rth->key.iif != 0) {
+				if (rth->fl.fl4_dst != daddr ||
+				    rth->fl.fl4_src != skeys[i] ||
+				    rth->fl.fl4_tos != tos ||
+				    rth->fl.oif != ikeys[k] ||
+				    rth->fl.iif != 0) {
 					rthp = &rth->u.rt_next;
 					continue;
 				}
@@ -901,14 +901,14 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
 			ret = NULL;
 		} else if ((rt->rt_flags & RTCF_REDIRECTED) ||
 			   rt->u.dst.expires) {
-			unsigned hash = rt_hash_code(rt->key.dst,
-						     rt->key.src ^
-							(rt->key.oif << 5),
-						     rt->key.tos);
+			unsigned hash = rt_hash_code(rt->fl.fl4_dst,
+						     rt->fl.fl4_src ^
+							(rt->fl.oif << 5),
+						     rt->fl.fl4_tos);
 #if RT_CACHE_DEBUG >= 1
 			printk(KERN_DEBUG "ip_rt_advice: redirect to "
 					  "%u.%u.%u.%u/%02x dropped\n",
-				NIPQUAD(rt->rt_dst), rt->key.tos);
+				NIPQUAD(rt->rt_dst), rt->fl.fl4_tos);
 #endif
 			rt_del(hash, rt);
 			ret = NULL;
@@ -1052,12 +1052,12 @@ unsigned short ip_rt_frag_needed(struct iphdr *iph, unsigned short new_mtu)
 		read_lock(&rt_hash_table[hash].lock);
 		for (rth = rt_hash_table[hash].chain; rth;
 		     rth = rth->u.rt_next) {
-			if (rth->key.dst == daddr &&
-			    rth->key.src == skeys[i] &&
+			if (rth->fl.fl4_dst == daddr &&
+			    rth->fl.fl4_src == skeys[i] &&
 			    rth->rt_dst  == daddr &&
 			    rth->rt_src  == iph->saddr &&
-			    rth->key.tos == tos &&
-			    rth->key.iif == 0 &&
+			    rth->fl.fl4_tos == tos &&
+			    rth->fl.iif == 0 &&
 			    !(rth->u.dst.mxlock & (1 << RTAX_MTU))) {
 				unsigned short mtu = new_mtu;
 
@@ -1162,9 +1162,9 @@ void ip_rt_get_source(u8 *addr, struct rtable *rt)
 	u32 src;
 	struct fib_result res;
 
-	if (rt->key.iif == 0)
+	if (rt->fl.iif == 0)
 		src = rt->rt_src;
-	else if (fib_lookup(&rt->key, &res) == 0) {
+	else if (fib_lookup(&rt->fl, &res) == 0) {
 #ifdef CONFIG_IP_ROUTE_NAT
 		if (res.type == RTN_NAT)
 			src = inet_select_addr(rt->u.dst.dev, rt->rt_gateway,
@@ -1263,13 +1263,13 @@ static int ip_route_input_mc(struct sk_buff *skb, u32 daddr, u32 saddr,
 
 	atomic_set(&rth->u.dst.__refcnt, 1);
 	rth->u.dst.flags= DST_HOST;
-	rth->key.dst	= daddr;
+	rth->fl.fl4_dst	= daddr;
 	rth->rt_dst	= daddr;
-	rth->key.tos	= tos;
+	rth->fl.fl4_tos	= tos;
 #ifdef CONFIG_IP_ROUTE_FWMARK
-	rth->key.fwmark	= skb->nfmark;
+	rth->fl.fl4_fwmark= skb->nfmark;
 #endif
-	rth->key.src	= saddr;
+	rth->fl.fl4_src	= saddr;
 	rth->rt_src	= saddr;
 #ifdef CONFIG_IP_ROUTE_NAT
 	rth->rt_dst_map	= daddr;
@@ -1279,10 +1279,10 @@ static int ip_route_input_mc(struct sk_buff *skb, u32 daddr, u32 saddr,
 	rth->u.dst.tclassid = itag;
 #endif
 	rth->rt_iif	=
-	rth->key.iif	= dev->ifindex;
+	rth->fl.iif	= dev->ifindex;
 	rth->u.dst.dev	= &loopback_dev;
 	dev_hold(rth->u.dst.dev);
-	rth->key.oif	= 0;
+	rth->fl.oif	= 0;
 	rth->rt_gateway	= daddr;
 	rth->rt_spec_dst= spec_dst;
 	rth->rt_type	= RTN_MULTICAST;
@@ -1324,10 +1324,19 @@ static int ip_route_input_mc(struct sk_buff *skb, u32 daddr, u32 saddr,
 int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
 			u8 tos, struct net_device *dev)
 {
-	struct rt_key	key;
 	struct fib_result res;
 	struct in_device *in_dev = in_dev_get(dev);
 	struct in_device *out_dev = NULL;
+	struct flowi fl = { .nl_u = { .ip4_u =
+				      { .daddr = daddr,
+					.saddr = saddr,
+					.tos = tos,
+					.scope = RT_SCOPE_UNIVERSE,
+#ifdef CONFIG_IP_ROUTE_FWMARK
+					.fwmark = skb->nfmark
+#endif
+				      } },
+			    .iif = dev->ifindex };
 	unsigned	flags = 0;
 	u32		itag = 0;
 	struct rtable * rth;
@@ -1341,17 +1350,7 @@ int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
 	if (!in_dev)
 		goto out;
 
-	key.dst		= daddr;
-	key.src		= saddr;
-	key.tos		= tos;
-#ifdef CONFIG_IP_ROUTE_FWMARK
-	key.fwmark	= skb->nfmark;
-#endif
-	key.iif		= dev->ifindex;
-	key.oif		= 0;
-	key.scope	= RT_SCOPE_UNIVERSE;
-
-	hash = rt_hash_code(daddr, saddr ^ (key.iif << 5), tos);
+	hash = rt_hash_code(daddr, saddr ^ (fl.iif << 5), tos);
 
 	/* Check for the most weird martians, which can be not detected
 	   by fib_lookup.
@@ -1375,7 +1374,7 @@ int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
 	/*
 	 *	Now we are ready to route packet.
 	 */
-	if ((err = fib_lookup(&key, &res)) != 0) {
+	if ((err = fib_lookup(&fl, &res)) != 0) {
 		if (!IN_DEV_FORWARD(in_dev))
 			goto e_inval;
 		goto no_route;
@@ -1395,17 +1394,17 @@ int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
 			src_map = fib_rules_policy(saddr, &res, &flags);
 
 		if (res.type == RTN_NAT) {
-			key.dst = fib_rules_map_destination(daddr, &res);
+			fl.fl4_dst = fib_rules_map_destination(daddr, &res);
 			fib_res_put(&res);
 			free_res = 0;
-			if (fib_lookup(&key, &res))
+			if (fib_lookup(&fl, &res))
 				goto e_inval;
 			free_res = 1;
 			if (res.type != RTN_UNICAST)
 				goto e_inval;
 			flags |= RTCF_DNAT;
 		}
-		key.src = src_map;
+		fl.fl4_src = src_map;
 	}
 #endif
 
@@ -1431,8 +1430,8 @@ int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
 		goto martian_destination;
 
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
-	if (res.fi->fib_nhs > 1 && key.oif == 0)
-		fib_select_multipath(&key, &res);
+	if (res.fi->fib_nhs > 1 && fl.oif == 0)
+		fib_select_multipath(&fl, &res);
 #endif
 	out_dev = in_dev_get(FIB_RES_DEV(res));
 	if (out_dev == NULL) {
@@ -1469,26 +1468,26 @@ int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
 
 	atomic_set(&rth->u.dst.__refcnt, 1);
 	rth->u.dst.flags= DST_HOST;
-	rth->key.dst	= daddr;
+	rth->fl.fl4_dst	= daddr;
 	rth->rt_dst	= daddr;
-	rth->key.tos	= tos;
+	rth->fl.fl4_tos	= tos;
 #ifdef CONFIG_IP_ROUTE_FWMARK
-	rth->key.fwmark	= skb->nfmark;
+	rth->fl.fl4_fwmark= skb->nfmark;
 #endif
-	rth->key.src	= saddr;
+	rth->fl.fl4_src	= saddr;
 	rth->rt_src	= saddr;
 	rth->rt_gateway	= daddr;
 #ifdef CONFIG_IP_ROUTE_NAT
-	rth->rt_src_map	= key.src;
-	rth->rt_dst_map	= key.dst;
+	rth->rt_src_map	= fl.fl4_src;
+	rth->rt_dst_map	= fl.fl4_dst;
 	if (flags&RTCF_DNAT)
-		rth->rt_gateway	= key.dst;
+		rth->rt_gateway	= fl.fl4_dst;
 #endif
 	rth->rt_iif 	=
-	rth->key.iif	= dev->ifindex;
+	rth->fl.iif	= dev->ifindex;
 	rth->u.dst.dev	= out_dev->dev;
 	dev_hold(rth->u.dst.dev);
-	rth->key.oif 	= 0;
+	rth->fl.oif 	= 0;
 	rth->rt_spec_dst= spec_dst;
 
 	rth->u.dst.input = ip_forward;
@@ -1546,26 +1545,25 @@ out:	return err;
 
 	atomic_set(&rth->u.dst.__refcnt, 1);
 	rth->u.dst.flags= DST_HOST;
-	rth->key.dst	= daddr;
+	rth->fl.fl4_dst	= daddr;
 	rth->rt_dst	= daddr;
-	rth->key.tos	= tos;
+	rth->fl.fl4_tos	= tos;
 #ifdef CONFIG_IP_ROUTE_FWMARK
-	rth->key.fwmark	= skb->nfmark;
+	rth->fl.fl4_fwmark= skb->nfmark;
 #endif
-	rth->key.src	= saddr;
+	rth->fl.fl4_src	= saddr;
 	rth->rt_src	= saddr;
 #ifdef CONFIG_IP_ROUTE_NAT
-	rth->rt_dst_map	= key.dst;
-	rth->rt_src_map	= key.src;
+	rth->rt_dst_map	= fl.fl4_dst;
+	rth->rt_src_map	= fl.fl4_src;
 #endif
 #ifdef CONFIG_NET_CLS_ROUTE
 	rth->u.dst.tclassid = itag;
 #endif
 	rth->rt_iif	=
-	rth->key.iif	= dev->ifindex;
+	rth->fl.iif	= dev->ifindex;
 	rth->u.dst.dev	= &loopback_dev;
 	dev_hold(rth->u.dst.dev);
-	rth->key.oif 	= 0;
 	rth->rt_gateway	= daddr;
 	rth->rt_spec_dst= spec_dst;
 	rth->u.dst.input= ip_local_deliver;
@@ -1643,14 +1641,14 @@ int ip_route_input(struct sk_buff *skb, u32 daddr, u32 saddr,
 
 	read_lock(&rt_hash_table[hash].lock);
 	for (rth = rt_hash_table[hash].chain; rth; rth = rth->u.rt_next) {
-		if (rth->key.dst == daddr &&
-		    rth->key.src == saddr &&
-		    rth->key.iif == iif &&
-		    rth->key.oif == 0 &&
+		if (rth->fl.fl4_dst == daddr &&
+		    rth->fl.fl4_src == saddr &&
+		    rth->fl.iif == iif &&
+		    rth->fl.oif == 0 &&
 #ifdef CONFIG_IP_ROUTE_FWMARK
-		    rth->key.fwmark == skb->nfmark &&
+		    rth->fl.fl4_fwmark == skb->nfmark &&
 #endif
-		    rth->key.tos == tos) {
+		    rth->fl.fl4_tos == tos) {
 			rth->u.dst.lastuse = jiffies;
 			dst_hold(&rth->u.dst);
 			rth->u.dst.__use++;
@@ -1699,9 +1697,22 @@ int ip_route_input(struct sk_buff *skb, u32 daddr, u32 saddr,
  * Major route resolver routine.
  */
 
-int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
+int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
 {
-	struct rt_key key;
+	u32 tos	= oldflp->fl4_tos & (IPTOS_RT_MASK | RTO_ONLINK);
+	struct flowi fl = { .nl_u = { .ip4_u =
+				      { .daddr = oldflp->fl4_dst,
+					.saddr = oldflp->fl4_src,
+					.tos = tos & IPTOS_RT_MASK,
+					.scope = ((tos & RTO_ONLINK) ?
+						  RT_SCOPE_LINK :
+						  RT_SCOPE_UNIVERSE),
+#ifdef CONFIG_IP_ROUTE_FWMARK
+					.fwmark = oldflp->fl4_fwmark
+#endif
+				      } },
+			    .iif = loopback_dev.ifindex,
+			    .oif = oldflp->oif };
 	struct fib_result res;
 	unsigned flags = 0;
 	struct rtable *rth;
@@ -1709,33 +1720,21 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 	unsigned hash;
 	int free_res = 0;
 	int err;
-	u32 tos;
-
-	tos		= oldkey->tos & (IPTOS_RT_MASK | RTO_ONLINK);
-	key.dst		= oldkey->dst;
-	key.src		= oldkey->src;
-	key.tos		= tos & IPTOS_RT_MASK;
-	key.iif		= loopback_dev.ifindex;
-	key.oif		= oldkey->oif;
-#ifdef CONFIG_IP_ROUTE_FWMARK
-	key.fwmark	= oldkey->fwmark;
-#endif
-	key.scope	= (tos & RTO_ONLINK) ? RT_SCOPE_LINK :
-						RT_SCOPE_UNIVERSE;
+
 	res.fi		= NULL;
 #ifdef CONFIG_IP_MULTIPLE_TABLES
 	res.r		= NULL;
 #endif
 
-	if (oldkey->src) {
+	if (oldflp->fl4_src) {
 		err = -EINVAL;
-		if (MULTICAST(oldkey->src) ||
-		    BADCLASS(oldkey->src) ||
-		    ZERONET(oldkey->src))
+		if (MULTICAST(oldflp->fl4_src) ||
+		    BADCLASS(oldflp->fl4_src) ||
+		    ZERONET(oldflp->fl4_src))
 			goto out;
 
 		/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
-		dev_out = ip_dev_find(oldkey->src);
+		dev_out = ip_dev_find(oldflp->fl4_src);
 		if (dev_out == NULL)
 			goto out;
 
@@ -1747,8 +1746,8 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 		      of another iface. --ANK
 		 */
 
-		if (oldkey->oif == 0
-		    && (MULTICAST(oldkey->dst) || oldkey->dst == 0xFFFFFFFF)) {
+		if (oldflp->oif == 0
+		    && (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == 0xFFFFFFFF)) {
 			/* Special hack: user can direct multicasts
 			   and limited broadcast via necessary interface
 			   without fiddling with IP_MULTICAST_IF or IP_PKTINFO.
@@ -1764,15 +1763,15 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 			   Luckily, this hack is good workaround.
 			 */
 
-			key.oif = dev_out->ifindex;
+			fl.oif = dev_out->ifindex;
 			goto make_route;
 		}
 		if (dev_out)
 			dev_put(dev_out);
 		dev_out = NULL;
 	}
-	if (oldkey->oif) {
-		dev_out = dev_get_by_index(oldkey->oif);
+	if (oldflp->oif) {
+		dev_out = dev_get_by_index(oldflp->oif);
 		err = -ENODEV;
 		if (dev_out == NULL)
 			goto out;
@@ -1781,39 +1780,39 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 			goto out;	/* Wrong error code */
 		}
 
-		if (LOCAL_MCAST(oldkey->dst) || oldkey->dst == 0xFFFFFFFF) {
-			if (!key.src)
-				key.src = inet_select_addr(dev_out, 0,
-								RT_SCOPE_LINK);
+		if (LOCAL_MCAST(oldflp->fl4_dst) || oldflp->fl4_dst == 0xFFFFFFFF) {
+			if (!fl.fl4_src)
+				fl.fl4_src = inet_select_addr(dev_out, 0,
+							      RT_SCOPE_LINK);
 			goto make_route;
 		}
-		if (!key.src) {
-			if (MULTICAST(oldkey->dst))
-				key.src = inet_select_addr(dev_out, 0,
-								key.scope);
-			else if (!oldkey->dst)
-				key.src = inet_select_addr(dev_out, 0,
-								RT_SCOPE_HOST);
+		if (!fl.fl4_src) {
+			if (MULTICAST(oldflp->fl4_dst))
+				fl.fl4_src = inet_select_addr(dev_out, 0,
+							      fl.fl4_scope);
+			else if (!oldflp->fl4_dst)
+				fl.fl4_src = inet_select_addr(dev_out, 0,
+							      RT_SCOPE_HOST);
 		}
 	}
 
-	if (!key.dst) {
-		key.dst = key.src;
-		if (!key.dst)
-			key.dst = key.src = htonl(INADDR_LOOPBACK);
+	if (!fl.fl4_dst) {
+		fl.fl4_dst = fl.fl4_src;
+		if (!fl.fl4_dst)
+			fl.fl4_dst = fl.fl4_src = htonl(INADDR_LOOPBACK);
 		if (dev_out)
 			dev_put(dev_out);
 		dev_out = &loopback_dev;
 		dev_hold(dev_out);
-		key.oif = loopback_dev.ifindex;
+		fl.oif = loopback_dev.ifindex;
 		res.type = RTN_LOCAL;
 		flags |= RTCF_LOCAL;
 		goto make_route;
 	}
 
-	if (fib_lookup(&key, &res)) {
+	if (fib_lookup(&fl, &res)) {
 		res.fi = NULL;
-		if (oldkey->oif) {
+		if (oldflp->oif) {
 			/* Apparently, routing tables are wrong. Assume,
 			   that the destination is on link.
 
@@ -1832,9 +1831,9 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 			   likely IPv6, but we do not.
 			 */
 
-			if (key.src == 0)
-				key.src = inet_select_addr(dev_out, 0,
-							   RT_SCOPE_LINK);
+			if (fl.fl4_src == 0)
+				fl.fl4_src = inet_select_addr(dev_out, 0,
+							      RT_SCOPE_LINK);
 			res.type = RTN_UNICAST;
 			goto make_route;
 		}
@@ -1849,13 +1848,13 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 		goto e_inval;
 
 	if (res.type == RTN_LOCAL) {
-		if (!key.src)
-			key.src = key.dst;
+		if (!fl.fl4_src)
+			fl.fl4_src = fl.fl4_dst;
 		if (dev_out)
 			dev_put(dev_out);
 		dev_out = &loopback_dev;
 		dev_hold(dev_out);
-		key.oif = dev_out->ifindex;
+		fl.oif = dev_out->ifindex;
 		if (res.fi)
 			fib_info_put(res.fi);
 		res.fi = NULL;
@@ -1864,31 +1863,31 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 	}
 
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
-	if (res.fi->fib_nhs > 1 && key.oif == 0)
-		fib_select_multipath(&key, &res);
+	if (res.fi->fib_nhs > 1 && fl.oif == 0)
+		fib_select_multipath(&fl, &res);
 	else
 #endif
-	if (!res.prefixlen && res.type == RTN_UNICAST && !key.oif)
-		fib_select_default(&key, &res);
+	if (!res.prefixlen && res.type == RTN_UNICAST && !fl.oif)
+		fib_select_default(&fl, &res);
 
-	if (!key.src)
-		key.src = FIB_RES_PREFSRC(res);
+	if (!fl.fl4_src)
+		fl.fl4_src = FIB_RES_PREFSRC(res);
 
 	if (dev_out)
 		dev_put(dev_out);
 	dev_out = FIB_RES_DEV(res);
 	dev_hold(dev_out);
-	key.oif = dev_out->ifindex;
+	fl.oif = dev_out->ifindex;
 
 make_route:
-	if (LOOPBACK(key.src) && !(dev_out->flags&IFF_LOOPBACK))
+	if (LOOPBACK(fl.fl4_src) && !(dev_out->flags&IFF_LOOPBACK))
 		goto e_inval;
 
-	if (key.dst == 0xFFFFFFFF)
+	if (fl.fl4_dst == 0xFFFFFFFF)
 		res.type = RTN_BROADCAST;
-	else if (MULTICAST(key.dst))
+	else if (MULTICAST(fl.fl4_dst))
 		res.type = RTN_MULTICAST;
-	else if (BADCLASS(key.dst) || ZERONET(key.dst))
+	else if (BADCLASS(fl.fl4_dst) || ZERONET(fl.fl4_dst))
 		goto e_inval;
 
 	if (dev_out->flags & IFF_LOOPBACK)
@@ -1904,7 +1903,7 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 		flags |= RTCF_MULTICAST|RTCF_LOCAL;
 		read_lock(&inetdev_lock);
 		if (!__in_dev_get(dev_out) ||
-		    !ip_check_mc(__in_dev_get(dev_out), oldkey->dst))
+		    !ip_check_mc(__in_dev_get(dev_out), oldflp->fl4_dst))
 			flags &= ~RTCF_LOCAL;
 		read_unlock(&inetdev_lock);
 		/* If multicast route do not exist use
@@ -1923,25 +1922,24 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 
 	atomic_set(&rth->u.dst.__refcnt, 1);
 	rth->u.dst.flags= DST_HOST;
-	rth->key.dst	= oldkey->dst;
-	rth->key.tos	= tos;
-	rth->key.src	= oldkey->src;
-	rth->key.iif	= 0;
-	rth->key.oif	= oldkey->oif;
+	rth->fl.fl4_dst	= oldflp->fl4_dst;
+	rth->fl.fl4_tos	= tos;
+	rth->fl.fl4_src	= oldflp->fl4_src;
+	rth->fl.oif	= oldflp->oif;
 #ifdef CONFIG_IP_ROUTE_FWMARK
-	rth->key.fwmark	= oldkey->fwmark;
+	rth->fl.fl4_fwmark= oldflp->fl4_fwmark;
 #endif
-	rth->rt_dst	= key.dst;
-	rth->rt_src	= key.src;
+	rth->rt_dst	= fl.fl4_dst;
+	rth->rt_src	= fl.fl4_src;
 #ifdef CONFIG_IP_ROUTE_NAT
-	rth->rt_dst_map	= key.dst;
-	rth->rt_src_map	= key.src;
+	rth->rt_dst_map	= fl.fl4_dst;
+	rth->rt_src_map	= fl.fl4_src;
 #endif
-	rth->rt_iif	= oldkey->oif ? : dev_out->ifindex;
+	rth->rt_iif	= oldflp->oif ? : dev_out->ifindex;
 	rth->u.dst.dev	= dev_out;
 	dev_hold(dev_out);
-	rth->rt_gateway = key.dst;
-	rth->rt_spec_dst= key.src;
+	rth->rt_gateway = fl.fl4_dst;
+	rth->rt_spec_dst= fl.fl4_src;
 
 	rth->u.dst.output=ip_output;
 
@@ -1949,10 +1947,10 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 
 	if (flags & RTCF_LOCAL) {
 		rth->u.dst.input = ip_local_deliver;
-		rth->rt_spec_dst = key.dst;
+		rth->rt_spec_dst = fl.fl4_dst;
 	}
 	if (flags & (RTCF_BROADCAST | RTCF_MULTICAST)) {
-		rth->rt_spec_dst = key.src;
+		rth->rt_spec_dst = fl.fl4_src;
 		if (flags & RTCF_LOCAL && !(dev_out->flags & IFF_LOOPBACK)) {
 			rth->u.dst.output = ip_mc_output;
 			rt_cache_stat[smp_processor_id()].out_slow_mc++;
@@ -1962,7 +1960,7 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 			struct in_device *in_dev = in_dev_get(dev_out);
 			if (in_dev) {
 				if (IN_DEV_MFORWARD(in_dev) &&
-				    !LOCAL_MCAST(oldkey->dst)) {
+				    !LOCAL_MCAST(oldflp->fl4_dst)) {
 					rth->u.dst.input = ip_mr_input;
 					rth->u.dst.output = ip_mc_output;
 				}
@@ -1976,7 +1974,7 @@ int ip_route_output_slow(struct rtable **rp, const struct rt_key *oldkey)
 
 	rth->rt_flags = flags;
 
-	hash = rt_hash_code(oldkey->dst, oldkey->src ^ (oldkey->oif << 5), tos);
+	hash = rt_hash_code(oldflp->fl4_dst, oldflp->fl4_src ^ (oldflp->oif << 5), tos);
 	err = rt_intern_hash(hash, rth, rp);
 done:
 	if (free_res)
@@ -1993,23 +1991,23 @@ out:	return err;
 	goto done;
 }
 
-int ip_route_output_key(struct rtable **rp, const struct rt_key *key)
+int ip_route_output_key(struct rtable **rp, const struct flowi *flp)
 {
 	unsigned hash;
 	struct rtable *rth;
 
-	hash = rt_hash_code(key->dst, key->src ^ (key->oif << 5), key->tos);
+	hash = rt_hash_code(flp->fl4_dst, flp->fl4_src ^ (flp->oif << 5), flp->fl4_tos);
 
 	read_lock_bh(&rt_hash_table[hash].lock);
 	for (rth = rt_hash_table[hash].chain; rth; rth = rth->u.rt_next) {
-		if (rth->key.dst == key->dst &&
-		    rth->key.src == key->src &&
-		    rth->key.iif == 0 &&
-		    rth->key.oif == key->oif &&
+		if (rth->fl.fl4_dst == flp->fl4_dst &&
+		    rth->fl.fl4_src == flp->fl4_src &&
+		    rth->fl.iif == 0 &&
+		    rth->fl.oif == flp->oif &&
 #ifdef CONFIG_IP_ROUTE_FWMARK
-		    rth->key.fwmark == key->fwmark &&
+		    rth->fl.fl4_fwmark == flp->fl4_fwmark &&
 #endif
-		    !((rth->key.tos ^ key->tos) &
+		    !((rth->fl.fl4_tos ^ flp->fl4_tos) &
 			    (IPTOS_RT_MASK | RTO_ONLINK))) {
 			rth->u.dst.lastuse = jiffies;
 			dst_hold(&rth->u.dst);
@@ -2022,7 +2020,7 @@ int ip_route_output_key(struct rtable **rp, const struct rt_key *key)
 	}
 	read_unlock_bh(&rt_hash_table[hash].lock);
 
-	return ip_route_output_slow(rp, key);
+	return ip_route_output_slow(rp, flp);
 }	
 
 static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
@@ -2042,7 +2040,7 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 	r->rtm_family	 = AF_INET;
 	r->rtm_dst_len	= 32;
 	r->rtm_src_len	= 0;
-	r->rtm_tos	= rt->key.tos;
+	r->rtm_tos	= rt->fl.fl4_tos;
 	r->rtm_table	= RT_TABLE_MAIN;
 	r->rtm_type	= rt->rt_type;
 	r->rtm_scope	= RT_SCOPE_UNIVERSE;
@@ -2051,9 +2049,9 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 	if (rt->rt_flags & RTCF_NOTIFY)
 		r->rtm_flags |= RTM_F_NOTIFY;
 	RTA_PUT(skb, RTA_DST, 4, &rt->rt_dst);
-	if (rt->key.src) {
+	if (rt->fl.fl4_src) {
 		r->rtm_src_len = 32;
-		RTA_PUT(skb, RTA_SRC, 4, &rt->key.src);
+		RTA_PUT(skb, RTA_SRC, 4, &rt->fl.fl4_src);
 	}
 	if (rt->u.dst.dev)
 		RTA_PUT(skb, RTA_OIF, sizeof(int), &rt->u.dst.dev->ifindex);
@@ -2061,9 +2059,9 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 	if (rt->u.dst.tclassid)
 		RTA_PUT(skb, RTA_FLOW, 4, &rt->u.dst.tclassid);
 #endif
-	if (rt->key.iif)
+	if (rt->fl.iif)
 		RTA_PUT(skb, RTA_PREFSRC, 4, &rt->rt_spec_dst);
-	else if (rt->rt_src != rt->key.src)
+	else if (rt->rt_src != rt->fl.fl4_src)
 		RTA_PUT(skb, RTA_PREFSRC, 4, &rt->rt_src);
 	if (rt->rt_dst != rt->rt_gateway)
 		RTA_PUT(skb, RTA_GATEWAY, 4, &rt->rt_gateway);
@@ -2089,7 +2087,7 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 	eptr = (struct rtattr*)skb->tail;
 #endif
 	RTA_PUT(skb, RTA_CACHEINFO, sizeof(ci), &ci);
-	if (rt->key.iif) {
+	if (rt->fl.iif) {
 #ifdef CONFIG_IP_MROUTE
 		u32 dst = rt->rt_dst;
 
@@ -2109,7 +2107,7 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 			}
 		} else
 #endif
-			RTA_PUT(skb, RTA_IIF, sizeof(int), &rt->key.iif);
+			RTA_PUT(skb, RTA_IIF, sizeof(int), &rt->fl.iif);
 	}
 
 	nlh->nlmsg_len = skb->tail - b;
@@ -2163,10 +2161,14 @@ int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
 		if (!err && rt->u.dst.error)
 			err = -rt->u.dst.error;
 	} else {
+		struct flowi fl = { .nl_u = { .ip4_u = { .daddr = dst,
+							 .saddr = src,
+							 .tos = rtm->rtm_tos } } };
 		int oif = 0;
 		if (rta[RTA_OIF - 1])
 			memcpy(&oif, RTA_DATA(rta[RTA_OIF - 1]), sizeof(int));
-		err = ip_route_output(&rt, dst, src, rtm->rtm_tos, oif);
+		fl.oif = oif;
+		err = ip_route_output_key(&rt, &fl);
 	}
 	if (err) {
 		kfree_skb(skb);

net/ipv4/syncookies.c

@@ -171,14 +171,17 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	 * hasn't changed since we received the original syn, but I see
 	 * no easy way to do this. 
 	 */
-	if (ip_route_output(&rt,
-			    opt && 
-			    opt->srr ? opt->faddr : req->af.v4_req.rmt_addr,
-			    req->af.v4_req.loc_addr,
-			    RT_CONN_FLAGS(sk),
-			    0)) { 
-		tcp_openreq_free(req);
-		goto out; 
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = ((opt && opt->srr) ?
+							  opt->faddr :
+							  req->af.v4_req.rmt_addr),
+						.saddr = req->af.v4_req.loc_addr,
+						.tos = RT_CONN_FLAGS(sk) } } };
+		if (ip_route_output_key(&rt, &fl)) {
+			tcp_openreq_free(req);
+			goto out; 
+		}
 	}
 
 	/* Try to redo what tcp_v4_send_synack did. */

net/ipv4/tcp_ipv4.c

@@ -1266,11 +1266,15 @@ static struct dst_entry* tcp_v4_route_req(struct sock *sk,
 {
 	struct rtable *rt;
 	struct ip_options *opt = req->af.v4_req.opt;
-
-	if (ip_route_output(&rt, ((opt && opt->srr) ? opt->faddr :
-						      req->af.v4_req.rmt_addr),
-			   req->af.v4_req.loc_addr,
-			   RT_CONN_FLAGS(sk), sk->bound_dev_if)) {
+	struct flowi fl = { .nl_u = { .ip4_u =
+				      { .daddr = ((opt && opt->srr) ?
+						  opt->faddr :
+						  req->af.v4_req.rmt_addr),
+					.saddr = req->af.v4_req.loc_addr,
+					.tos = RT_CONN_FLAGS(sk) } },
+			    .oif = sk->bound_dev_if };
+
+	if (ip_route_output_key(&rt, &fl)) {
 		IP_INC_STATS_BH(IpOutNoRoutes);
 		return NULL;
 	}
@@ -1909,8 +1913,15 @@ int tcp_v4_rebuild_header(struct sock *sk)
 	if (inet->opt && inet->opt->srr)
 		daddr = inet->opt->faddr;
 
-	err = ip_route_output(&rt, daddr, inet->saddr,
-			      RT_CONN_FLAGS(sk), sk->bound_dev_if);
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = daddr,
+						.saddr = inet->saddr,
+						.tos = RT_CONN_FLAGS(sk) } },
+				    .oif = sk->bound_dev_if };
+						
+		err = ip_route_output_key(&rt, &fl);
+	}
 	if (!err) {
 		__sk_dst_set(sk, &rt->u.dst);
 		tcp_v4_setup_caps(sk, &rt->u.dst);

net/ipv4/udp.c

@@ -528,7 +528,12 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, int len)
 		rt = (struct rtable*)sk_dst_check(sk, 0);
 
 	if (rt == NULL) {
-		err = ip_route_output(&rt, daddr, ufh.saddr, tos, ipc.oif);
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = daddr,
+						.saddr = ufh.saddr,
+						.tos = tos } },
+				    .oif = ipc.oif };
+		err = ip_route_output_key(&rt, &fl);
 		if (err)
 			goto out;
 

net/ipv6/Config.in

@@ -2,9 +2,6 @@
 # IPv6 configuration
 # 
 
-#bool '    IPv6: flow policy support' CONFIG_RT6_POLICY
-#bool '    IPv6: firewall support' CONFIG_IPV6_FIREWALL
-
 if [ "$CONFIG_NETFILTER" != "n" ]; then
    source net/ipv6/netfilter/Config.in
 fi

net/ipv6/Makefile

@@ -12,7 +12,6 @@ ipv6-objs :=	af_inet6.o ip6_output.o ip6_input.o addrconf.o sit.o \
 		exthdrs.o sysctl_net_ipv6.o datagram.o proc.o \
 		ip6_flowlabel.o ipv6_syms.o
 
-#obj-$(CONFIG_IPV6_FIREWALL) += ip6_fw.o
 obj-$(CONFIG_NETFILTER)	+= netfilter/
 
 include $(TOPDIR)/Rules.make

net/ipv6/ip6_fib.c

@@ -452,7 +452,6 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt)
 			 */
 
 			if ((iter->rt6i_dev == rt->rt6i_dev) &&
-			    (iter->rt6i_flowr == rt->rt6i_flowr) &&
 			    (ipv6_addr_cmp(&iter->rt6i_gateway,
 					   &rt->rt6i_gateway) == 0)) {
 				if (!(iter->rt6i_flags&RTF_EXPIRES))

net/ipv6/ip6_fw.c

-/*
- *	IPv6 Firewall
- *	Linux INET6 implementation
- *
- *	Authors:
- *	Pedro Roque		<roque@di.fc.ul.pt>	
- *
- *	$Id: ip6_fw.c,v 1.16 2001/10/31 08:17:58 davem Exp $
- *
- *	This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/net.h>
-#include <linux/route.h>
-#include <linux/netdevice.h>
-#include <linux/in6.h>
-#include <linux/udp.h>
-#include <linux/init.h>
-
-#include <net/ipv6.h>
-#include <net/ip6_route.h>
-#include <net/ip6_fw.h>
-#include <net/netlink.h>
-
-static unsigned long ip6_fw_rule_cnt;
-static struct ip6_fw_rule ip6_fw_rule_list = {
-	{0},
-	NULL, NULL,
-	{0},
-	IP6_FW_REJECT
-};
-
-static int ip6_fw_accept(struct dst_entry *dst, struct fl_acc_args *args);
-
-struct flow_rule_ops ip6_fw_ops = {
-	ip6_fw_accept
-};
-
-
-static struct rt6_info ip6_fw_null_entry = {
-	{{NULL, 0, 0, NULL,
-	  0, 0, 0, 0, 0, 0, 0, 0, -ENETUNREACH, NULL, NULL,
-	  ip6_pkt_discard, ip6_pkt_discard, NULL}},
-	NULL, {{{0}}}, 256, RTF_REJECT|RTF_NONEXTHOP, ~0UL,
-	0, &ip6_fw_rule_list, {{{{0}}}, 128}, {{{{0}}}, 128}
-};
-
-static struct fib6_node ip6_fw_fib = {
-	NULL, NULL, NULL, NULL,
-	&ip6_fw_null_entry,
-	0, RTN_ROOT|RTN_TL_ROOT, 0
-};
-
-rwlock_t ip6_fw_lock = RW_LOCK_UNLOCKED;
-
-
-static void ip6_rule_add(struct ip6_fw_rule *rl)
-{
-	struct ip6_fw_rule *next;
-
-	write_lock_bh(&ip6_fw_lock);
-	ip6_fw_rule_cnt++;
-	next = &ip6_fw_rule_list;
-	rl->next = next;
-	rl->prev = next->prev;
-	rl->prev->next = rl;
-	next->prev = rl;
-	write_unlock_bh(&ip6_fw_lock);
-}
-
-static void ip6_rule_del(struct ip6_fw_rule *rl)
-{
-	struct ip6_fw_rule *next, *prev;
-
-	write_lock_bh(&ip6_fw_lock);
-	ip6_fw_rule_cnt--;
-	next = rl->next;
-	prev = rl->prev;
-	next->prev = prev;
-	prev->next = next;
-	write_unlock_bh(&ip6_fw_lock);
-}
-
-static __inline__ struct ip6_fw_rule * ip6_fwrule_alloc(void)
-{
-	struct ip6_fw_rule *rl;
-
-	rl = kmalloc(sizeof(struct ip6_fw_rule), GFP_ATOMIC);
-	if (rl)
-	{
-		memset(rl, 0, sizeof(struct ip6_fw_rule));
-		rl->flowr.ops = &ip6_fw_ops;
-	}
-	return rl;
-}
-
-static __inline__ void ip6_fwrule_free(struct ip6_fw_rule * rl)
-{
-	kfree(rl);
-}
-
-static __inline__ int port_match(int rl_port, int fl_port)
-{
-	int res = 0;
-	if (rl_port == 0 || (rl_port == fl_port))
-		res = 1;
-	return res;
-}
-
-static int ip6_fw_accept_trans(struct ip6_fw_rule *rl,
-			       struct fl_acc_args *args)
-{
-	int res = FLOWR_NODECISION;
-	int proto = 0;
-	int sport = 0;
-	int dport = 0;
-
-	switch (args->type) {
-	case FL_ARG_FORWARD:
-	{
-		struct sk_buff *skb = args->fl_u.skb;
-		struct ipv6hdr *hdr = skb->nh.ipv6h;
-		int len;
-
-		len = skb->len - sizeof(struct ipv6hdr);
-
-		proto = hdr->nexthdr;
-
-		switch (proto) {
-		case IPPROTO_TCP:
-		{
-			struct tcphdr *th;
-
-			if (len < sizeof(struct tcphdr)) {
-				res = FLOWR_ERROR;
-				goto out;
-			}
-			th = (struct tcphdr *)(hdr + 1);
-			sport = th->source;
-			dport = th->dest;
-			break;
-		}
-		case IPPROTO_UDP:
-		{
-			struct udphdr *uh;
-
-			if (len < sizeof(struct udphdr)) {
-				res = FLOWR_ERROR;
-				goto out;
-			}
-			uh = (struct udphdr *)(hdr + 1);
-			sport = uh->source;
-			dport = uh->dest;
-			break;
-		}
-		default:
-			goto out;
-		};
-		break;
-	}
-
-	case FL_ARG_ORIGIN:
-	{
-		proto = args->fl_u.fl_o.flow->proto;
-
-		if (proto == IPPROTO_ICMPV6) {
-			goto out;
-		} else {
-			sport = args->fl_u.fl_o.flow->uli_u.ports.sport;
-			dport = args->fl_u.fl_o.flow->uli_u.ports.dport;
-		}
-		break;
-	}
-
-	if (proto == rl->info.proto &&
-	    port_match(args->fl_u.fl_o.flow->uli_u.ports.sport, sport) &&
-	    port_match(args->fl_u.fl_o.flow->uli_u.ports.dport, dport)) {
-		if (rl->policy & IP6_FW_REJECT)
-			res = FLOWR_SELECT;
-		else
-			res = FLOWR_CLEAR;
-	}
-
-	default:
-#if IP6_FW_DEBUG >= 1
-		printk(KERN_DEBUG "ip6_fw_accept: unknown arg type\n");
-#endif
-		goto out;
-	};
-
-out:
-	return res;
-}
-
-static int ip6_fw_accept(struct dst_entry *dst, struct fl_acc_args *args)
-{
-	struct rt6_info *rt;
-	struct ip6_fw_rule *rl;
-	int proto;
-	int res = FLOWR_NODECISION;
-
-	rt = (struct rt6_info *) dst;
-	rl = (struct ip6_fw_rule *) rt->rt6i_flowr;
-
-	proto = rl->info.proto;
-
-	switch (proto) {
-	case 0:
-		if (rl->policy & IP6_FW_REJECT)
-			res = FLOWR_SELECT;
-		else
-			res = FLOWR_CLEAR;
-		break;
-	case IPPROTO_TCP:
-	case IPPROTO_UDP:
-		res = ip6_fw_accept_trans(rl, args);
-		break;
-	case IPPROTO_ICMPV6:
-	};
-
-	return res;
-}
-
-static struct dst_entry * ip6_fw_dup(struct dst_entry *frule,
-				     struct dst_entry *rt,
-				     struct fl_acc_args *args)
-{
-	struct ip6_fw_rule *rl;
-	struct rt6_info *nrt;
-	struct rt6_info *frt;
-
-	frt = (struct rt6_info *) frule;
-
-	rl = (struct ip6_fw_rule *) frt->rt6i_flowr;
-
-	nrt = ip6_rt_copy((struct rt6_info *) rt);
-
-	if (nrt) {
-		nrt->u.dst.input = frule->input;
-		nrt->u.dst.output = frule->output;
-
-		nrt->rt6i_flowr = flow_clone(frt->rt6i_flowr);
-
-		nrt->rt6i_flags |= RTF_CACHE;
-		nrt->rt6i_tstamp = jiffies;
-	}
-
-	return (struct dst_entry *) nrt;
-}
-
-int ip6_fw_reject(struct sk_buff *skb)
-{
-#if IP6_FW_DEBUG >= 1
-	printk(KERN_DEBUG "packet rejected: \n");
-#endif
-
-	icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADM_PROHIBITED, 0,
-		    skb->dev);
-	/*
-	 *	send it via netlink, as (rule, skb)
-	 */
-
-	kfree_skb(skb);
-	return 0;
-}
-
-int ip6_fw_discard(struct sk_buff *skb)
-{
-	printk(KERN_DEBUG "ip6_fw: BUG fw_reject called\n");
-	kfree_skb(skb);
-	return 0;
-}
-
-int ip6_fw_msg_add(struct ip6_fw_msg *msg)
-{
-	struct in6_rtmsg rtmsg;
-	struct ip6_fw_rule *rl;
-	struct rt6_info *rt;
-	int err;
-
-	ipv6_addr_copy(&rtmsg.rtmsg_dst, &msg->dst);
-	ipv6_addr_copy(&rtmsg.rtmsg_src, &msg->src);
-	rtmsg.rtmsg_dst_len = msg->dst_len;
-	rtmsg.rtmsg_src_len = msg->src_len;
-	rtmsg.rtmsg_metric = IP6_RT_PRIO_FW;
-
-	rl = ip6_fwrule_alloc();
-
-	if (rl == NULL)
-		return -ENOMEM;
-
-	rl->policy = msg->policy;
-	rl->info.proto = msg->proto;
-	rl->info.uli_u.data = msg->u.data;
-
-	rtmsg.rtmsg_flags = RTF_NONEXTHOP|RTF_POLICY;
-	err = ip6_route_add(&rtmsg);
-
-	if (err) {
-		ip6_fwrule_free(rl);
-		return err;
-	}
-
-	/* The rest will not work for now. --ABK (989725) */
-
-#ifndef notdef
-	ip6_fwrule_free(rl);
-	return -EPERM;
-#else
-	rt->u.dst.error = -EPERM;
-
-	if (msg->policy == IP6_FW_ACCEPT) {
-		/*
-		 *	Accept rules are never selected
-		 *	(i.e. packets use normal forwarding)
-		 */
-		rt->u.dst.input = ip6_fw_discard;
-		rt->u.dst.output = ip6_fw_discard;
-	} else {
-		rt->u.dst.input = ip6_fw_reject;
-		rt->u.dst.output = ip6_fw_reject;
-	}
-
-	ip6_rule_add(rl);
-
-	rt->rt6i_flowr = flow_clone((struct flow_rule *)rl);
-
-	return 0;
-#endif
-}
-
-static int ip6_fw_msgrcv(int unit, struct sk_buff *skb)
-{
-	int count = 0;
-
-	while (skb->len) {
-		struct ip6_fw_msg *msg;
-
-		if (skb->len < sizeof(struct ip6_fw_msg)) {
-			count = -EINVAL;
-			break;
-		}
-
-		msg = (struct ip6_fw_msg *) skb->data;
-		skb_pull(skb, sizeof(struct ip6_fw_msg));
-		count += sizeof(struct ip6_fw_msg);
-
-		switch (msg->action) {
-		case IP6_FW_MSG_ADD:
-			ip6_fw_msg_add(msg);
-			break;
-		case IP6_FW_MSG_DEL:
-			break;
-		default:
-			return -EINVAL;
-		};
-	}
-
-	return count;
-}
-
-static void ip6_fw_destroy(struct flow_rule *rl)
-{
-	ip6_fwrule_free((struct ip6_fw_rule *)rl);
-}
-
-#ifdef MODULE
-#define ip6_fw_init module_init
-#endif
-
-void __init ip6_fw_init(void)
-{
-	netlink_attach(NETLINK_IP6_FW, ip6_fw_msgrcv);
-}
-
-#ifdef MODULE
-void cleanup_module(void)
-{
-	netlink_detach(NETLINK_IP6_FW);
-}
-#endif

net/ipv6/route.c

@@ -56,8 +56,6 @@
 #include <linux/sysctl.h>
 #endif
 
-#undef CONFIG_RT6_POLICY
-
 /* Set to 3 to get tracing. */
 #define RT6_DEBUG 2
 
@@ -103,16 +101,22 @@ static struct dst_ops ip6_dst_ops = {
 };
 
 struct rt6_info ip6_null_entry = {
-	{{NULL, ATOMIC_INIT(1), 1, &loopback_dev,
-	  -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  -ENETUNREACH, NULL, NULL,
-	  ip6_pkt_discard, ip6_pkt_discard,
-#ifdef CONFIG_NET_CLS_ROUTE
-	  0,
-#endif
-	  &ip6_dst_ops}},
-	NULL, {{{0}}}, RTF_REJECT|RTF_NONEXTHOP, ~0U,
-	255, ATOMIC_INIT(1), {NULL}, {{{{0}}}, 0}, {{{{0}}}, 0}
+	.u = {
+		.dst = {
+			.__refcnt	= ATOMIC_INIT(1),
+			.__use		= 1,
+			.dev		= &loopback_dev,
+			.obsolete	= -1,
+			.error		= -ENETUNREACH,
+			.input		= ip6_pkt_discard,
+			.output		= ip6_pkt_discard,
+			.ops		= &ip6_dst_ops
+		}
+	},
+	.rt6i_flags	= (RTF_REJECT | RTF_NONEXTHOP),
+	.rt6i_metric	= ~(u32) 0,
+	.rt6i_hoplimit	= 255,
+	.rt6i_ref	= ATOMIC_INIT(1),
 };
 
 struct fib6_node ip6_routing_table = {
@@ -121,24 +125,6 @@ struct fib6_node ip6_routing_table = {
 	0, RTN_ROOT|RTN_TL_ROOT|RTN_RTINFO, 0
 };
 
-#ifdef CONFIG_RT6_POLICY
-int	ip6_rt_policy = 0;
-
-struct pol_chain *rt6_pol_list = NULL;
-
-
-static int rt6_flow_match_in(struct rt6_info *rt, struct sk_buff *skb);
-static int rt6_flow_match_out(struct rt6_info *rt, struct sock *sk);
-
-static struct rt6_info	*rt6_flow_lookup(struct rt6_info *rt,
-					 struct in6_addr *daddr,
-					 struct in6_addr *saddr,
-					 struct fl_acc_args *args);
-
-#else
-#define ip6_rt_policy (0)
-#endif
-
 /* Protects all the ip6 fib */
 
 rwlock_t rt6_lock = RW_LOCK_UNLOCKED;
@@ -386,38 +372,6 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
 	return &ip6_null_entry;
 }
 
-#ifdef CONFIG_RT6_POLICY
-static __inline__ struct rt6_info *rt6_flow_lookup_in(struct rt6_info *rt,
-						      struct sk_buff *skb)
-{
-	struct in6_addr *daddr, *saddr;
-	struct fl_acc_args arg;
-
-	arg.type = FL_ARG_FORWARD;
-	arg.fl_u.skb = skb;
-
-	saddr = &skb->nh.ipv6h->saddr;
-	daddr = &skb->nh.ipv6h->daddr;
-
-	return rt6_flow_lookup(rt, daddr, saddr, &arg);
-}
-
-static __inline__ struct rt6_info *rt6_flow_lookup_out(struct rt6_info *rt,
-						       struct sock *sk,
-						       struct flowi *fl)
-{
-	struct fl_acc_args arg;
-
-	arg.type = FL_ARG_ORIGIN;
-	arg.fl_u.fl_o.sk = sk;
-	arg.fl_u.fl_o.flow = fl;
-
-	return rt6_flow_lookup(rt, fl->nl_u.ip6_u.daddr, fl->nl_u.ip6_u.saddr,
-			       &arg);
-}
-
-#endif
-
 #define BACKTRACK() \
 if (rt == &ip6_null_entry && strict) { \
        while ((fn = fn->parent) != NULL) { \
@@ -450,53 +404,29 @@ void ip6_route_input(struct sk_buff *skb)
 	rt = fn->leaf;
 
 	if ((rt->rt6i_flags & RTF_CACHE)) {
-		if (ip6_rt_policy == 0) {
-			rt = rt6_device_match(rt, skb->dev->ifindex, strict);
-			BACKTRACK();
-			dst_clone(&rt->u.dst);
-			goto out;
-		}
-
-#ifdef CONFIG_RT6_POLICY
-		if ((rt->rt6i_flags & RTF_FLOW)) {
-			struct rt6_info *sprt;
-
-			for (sprt = rt; sprt; sprt = sprt->u.next) {
-				if (rt6_flow_match_in(sprt, skb)) {
-					rt = sprt;
-					dst_clone(&rt->u.dst);
-					goto out;
-				}
-			}
-		}
-#endif
+		rt = rt6_device_match(rt, skb->dev->ifindex, strict);
+		BACKTRACK();
+		dst_clone(&rt->u.dst);
+		goto out;
 	}
 
 	rt = rt6_device_match(rt, skb->dev->ifindex, 0);
 	BACKTRACK();
 
-	if (ip6_rt_policy == 0) {
-		if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
-			read_unlock_bh(&rt6_lock);
+	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
+		read_unlock_bh(&rt6_lock);
 
-			rt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
-				     &skb->nh.ipv6h->saddr);
+		rt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
+			     &skb->nh.ipv6h->saddr);
 			
-			if (rt->u.dst.error != -EEXIST || --attempts <= 0)
-				goto out2;
-			/* Race condition! In the gap, when rt6_lock was
-			   released someone could insert this route.  Relookup.
-			 */
-			goto relookup;
-		}
-		dst_clone(&rt->u.dst);
-	} else {
-#ifdef CONFIG_RT6_POLICY
-		rt = rt6_flow_lookup_in(rt, skb);
-#else
-		/* NEVER REACHED */
-#endif
+		if (rt->u.dst.error != -EEXIST || --attempts <= 0)
+			goto out2;
+		/* Race condition! In the gap, when rt6_lock was
+		   released someone could insert this route.  Relookup.
+		*/
+		goto relookup;
 	}
+	dst_clone(&rt->u.dst);
 
 out:
 	read_unlock_bh(&rt6_lock);
@@ -525,26 +455,10 @@ struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl)
 	rt = fn->leaf;
 
 	if ((rt->rt6i_flags & RTF_CACHE)) {
-		if (ip6_rt_policy == 0) {
-			rt = rt6_device_match(rt, fl->oif, strict);
-			BACKTRACK();
-			dst_clone(&rt->u.dst);
-			goto out;
-		}
-
-#ifdef CONFIG_RT6_POLICY
-		if ((rt->rt6i_flags & RTF_FLOW)) {
-			struct rt6_info *sprt;
-
-			for (sprt = rt; sprt; sprt = sprt->u.next) {
-				if (rt6_flow_match_out(sprt, sk)) {
-					rt = sprt;
-					dst_clone(&rt->u.dst);
-					goto out;
-				}
-			}
-		}
-#endif
+		rt = rt6_device_match(rt, fl->oif, strict);
+		BACKTRACK();
+		dst_clone(&rt->u.dst);
+		goto out;
 	}
 	if (rt->rt6i_flags & RTF_DEFAULT) {
 		if (rt->rt6i_metric >= IP6_RT_PRIO_ADDRCONF)
@@ -554,29 +468,21 @@ struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl)
 		BACKTRACK();
 	}
 
-	if (ip6_rt_policy == 0) {
-		if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
-			read_unlock_bh(&rt6_lock);
+	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
+		read_unlock_bh(&rt6_lock);
 
-			rt = rt6_cow(rt, fl->nl_u.ip6_u.daddr,
-				     fl->nl_u.ip6_u.saddr);
+		rt = rt6_cow(rt, fl->nl_u.ip6_u.daddr,
+			     fl->nl_u.ip6_u.saddr);
 			
-			if (rt->u.dst.error != -EEXIST || --attempts <= 0)
-				goto out2;
+		if (rt->u.dst.error != -EEXIST || --attempts <= 0)
+			goto out2;
 
-			/* Race condition! In the gap, when rt6_lock was
-			   released someone could insert this route.  Relookup.
-			 */
-			goto relookup;
-		}
-		dst_clone(&rt->u.dst);
-	} else {
-#ifdef CONFIG_RT6_POLICY
-		rt = rt6_flow_lookup_out(rt, sk, fl);
-#else
-		/* NEVER REACHED */
-#endif
+		/* Race condition! In the gap, when rt6_lock was
+		   released someone could insert this route.  Relookup.
+		*/
+		goto relookup;
 	}
+	dst_clone(&rt->u.dst);
 
 out:
 	read_unlock_bh(&rt6_lock);
@@ -1304,121 +1210,6 @@ int ip6_rt_addr_del(struct in6_addr *addr, struct net_device *dev)
 	return err;
 }
 
-#ifdef CONFIG_RT6_POLICY
-
-static int rt6_flow_match_in(struct rt6_info *rt, struct sk_buff *skb)
-{
-	struct flow_filter *frule;
-	struct pkt_filter *filter;
-	int res = 1;
-
-	if ((frule = rt->rt6i_filter) == NULL)
-		goto out;
-
-	if (frule->type != FLR_INPUT) {
-		res = 0;
-		goto out;
-	}
-
-	for (filter = frule->u.filter; filter; filter = filter->next) {
-		__u32 *word;
-
-		word = (__u32 *) skb->h.raw;
-		word += filter->offset;
-
-		if ((*word ^ filter->value) & filter->mask) {
-			res = 0;
-			break;
-		}
-	}
-
-out:
-	return res;
-}
-
-static int rt6_flow_match_out(struct rt6_info *rt, struct sock *sk)
-{
-	struct flow_filter *frule;
-	int res = 1;
-
-	if ((frule = rt->rt6i_filter) == NULL)
-		goto out;
-
-	if (frule->type != FLR_INPUT) {
-		res = 0;
-		goto out;
-	}
-
-	if (frule->u.sk != sk)
-		res = 0;
-out:
-	return res;
-}
-
-static struct rt6_info *rt6_flow_lookup(struct rt6_info *rt,
-					struct in6_addr *daddr,
-					struct in6_addr *saddr,
-					struct fl_acc_args *args)
-{
-	struct flow_rule *frule;
-	struct rt6_info *nrt = NULL;
-	struct pol_chain *pol;
-
-	for (pol = rt6_pol_list; pol; pol = pol->next) {
-		struct fib6_node *fn;
-		struct rt6_info *sprt;
-
-		fn = fib6_lookup(pol->rules, daddr, saddr);
-
-		do {
-			for (sprt = fn->leaf; sprt; sprt=sprt->u.next) {
-				int res;
-
-				frule = sprt->rt6i_flowr;
-#if RT6_DEBUG >= 2
-				if (frule == NULL) {
-					printk(KERN_DEBUG "NULL flowr\n");
-					goto error;
-				}
-#endif
-				res = frule->ops->accept(rt, sprt, args, &nrt);
-
-				switch (res) {
-				case FLOWR_SELECT:
-					goto found;
-				case FLOWR_CLEAR:
-					goto next_policy;
-				case FLOWR_NODECISION:
-					break;
-				default:
-					goto error;
-				};
-			}
-
-			fn = fn->parent;
-
-		} while ((fn->fn_flags & RTN_TL_ROOT) == 0);
-
-	next_policy:
-	}
-
-error:
-	dst_clone(&ip6_null_entry.u.dst);
-	return &ip6_null_entry;
-
-found:
-	if (nrt == NULL)
-		goto error;
-
-	nrt->rt6i_flags |= RTF_CACHE;
-	dst_clone(&nrt->u.dst);
-	err = rt6_ins(nrt);
-	if (err)
-		nrt->u.dst.error = err;
-	return nrt;
-}
-#endif
-
 static int fib6_ifdown(struct rt6_info *rt, void *arg)
 {
 	if (((void*)rt->rt6i_dev == arg || arg == NULL) &&

net/ipv6/sit.c

@@ -502,9 +502,16 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		dst = addr6->s6_addr32[3];
 	}
 
-	if (ip_route_output(&rt, dst, tiph->saddr, RT_TOS(tos), tunnel->parms.link)) {
-		tunnel->stat.tx_carrier_errors++;
-		goto tx_error_icmp;
+	{
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = dst,
+						.saddr = tiph->saddr,
+						.tos = RT_TOS(tos) } },
+				    .oif = tunnel->parms.link };
+		if (ip_route_output_key(&rt, &fl)) {
+			tunnel->stat.tx_carrier_errors++;
+			goto tx_error_icmp;
+		}
 	}
 	if (rt->rt_type != RTN_UNICAST) {
 		tunnel->stat.tx_carrier_errors++;
@@ -777,8 +784,13 @@ static int ipip6_tunnel_init(struct net_device *dev)
 	ipip6_tunnel_init_gen(dev);
 
 	if (iph->daddr) {
+		struct flowi fl = { .nl_u = { .ip4_u =
+					      { .daddr = iph->daddr,
+						.saddr = iph->saddr,
+						.tos = RT_TOS(iph->tos) } },
+				    .oif = tunnel->parms.link };
 		struct rtable *rt;
-		if (!ip_route_output(&rt, iph->daddr, iph->saddr, RT_TOS(iph->tos), tunnel->parms.link)) {
+		if (!ip_route_output_key(&rt, &fl)) {
 			tdev = rt->u.dst.dev;
 			ip_rt_put(rt);
 		}

net/sched/cls_route.c

@@ -154,7 +154,7 @@ static int route4_classify(struct sk_buff *skb, struct tcf_proto *tp,
 	if (head == NULL)
 		goto old_method;
 
-	iif = ((struct rtable*)dst)->key.iif;
+	iif = ((struct rtable*)dst)->fl.iif;
 
 	h = route4_fastmap_hash(id, iif);
 	if (id == head->fastmap[h].id &&

net/sctp/protocol.c

@@ -260,16 +260,10 @@ int sctp_v4_get_dst_mtu(const sockaddr_storage_t *address)
 {
 	int dst_mtu = SCTP_DEFAULT_MAXSEGMENT;
 	struct rtable *rt;
-	struct rt_key key = {
-		.dst   = address->v4.sin_addr.s_addr,
-		.src   = 0,
-		.iif   = 0,
-		.oif   = 0,
-		.tos   = 0,
-		.scope = 0
-	};
-
-	if (ip_route_output_key(&rt, &key)) {
+	struct flowi fl = { .nl_u = { .ip4_u =
+				      { .daddr = address->v4.sin_addr.s_addr } } };
+
+	if (ip_route_output_key(&rt, &fl)) {
 		SCTP_DEBUG_PRINTK("sctp_v4_get_dst_mtu:ip_route_output_key"
 				  " failed, returning %d as dst_mtu\n",
 				  dst_mtu);