break trunk temporary - upgrade to 2.6.21.1 and iptables 1.3.7
[openwrt/staging/chunkeey.git] / target / linux / generic-2.6 / patches / 201-multiple_default_gateways.patch
index 4a3e32728863383d3d6c774660035de7d421bfcf..8b6612f4cfc82a7a0d498c90db60938ed1be2a57 100644 (file)
@@ -1,7 +1,7 @@
-diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_nat.h linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_nat.h
---- linux-2.6.19.old/include/linux/netfilter_ipv4/ip_nat.h     2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/include/linux/netfilter_ipv4/ip_nat.h     2006-12-14 03:13:53.000000000 +0100
-@@ -63,6 +63,13 @@
+diff -urN linux-2.6.21.1/include/linux/netfilter_ipv4/ip_nat.h linux-2.6.21.1.new/include/linux/netfilter_ipv4/ip_nat.h
+--- linux-2.6.21.1/include/linux/netfilter_ipv4/ip_nat.h       2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.new/include/linux/netfilter_ipv4/ip_nat.h   2007-05-14 12:57:39.000000000 +0200
+@@ -64,6 +64,13 @@
  
  struct ip_conntrack;
  
@@ -15,9 +15,9 @@ diff -urN linux-2.6.19.old/include/linux/netfilter_ipv4/ip_nat.h linux-2.6.19.de
  /* Set up the info structure to map into this range. */
  extern unsigned int ip_nat_setup_info(struct ip_conntrack *conntrack,
                                      const struct ip_nat_range *range,
-diff -urN linux-2.6.19.old/include/linux/rtnetlink.h linux-2.6.19.dev/include/linux/rtnetlink.h
---- linux-2.6.19.old/include/linux/rtnetlink.h 2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/include/linux/rtnetlink.h 2006-12-14 03:13:53.000000000 +0100
+diff -urN linux-2.6.21.1/include/linux/rtnetlink.h linux-2.6.21.1.new/include/linux/rtnetlink.h
+--- linux-2.6.21.1/include/linux/rtnetlink.h   2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.new/include/linux/rtnetlink.h       2007-05-14 12:57:39.000000000 +0200
 @@ -293,6 +293,8 @@
  #define RTNH_F_DEAD           1       /* Nexthop is dead (used by multipath)  */
  #define RTNH_F_PERVASIVE      2       /* Do recursive gateway lookup  */
@@ -27,916 +27,31 @@ diff -urN linux-2.6.19.old/include/linux/rtnetlink.h linux-2.6.19.dev/include/li
  
  /* Macros to handle hexthops */
  
-diff -urN linux-2.6.19.old/include/net/flow.h linux-2.6.19.dev/include/net/flow.h
---- linux-2.6.19.old/include/net/flow.h        2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/include/net/flow.h        2006-12-14 03:13:53.000000000 +0100
+diff -urN linux-2.6.21.1/include/net/flow.h linux-2.6.21.1.new/include/net/flow.h
+--- linux-2.6.21.1/include/net/flow.h  2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.new/include/net/flow.h      2007-05-14 13:00:27.000000000 +0200
 @@ -19,6 +19,8 @@
+               struct {
                        __be32                  daddr;
                        __be32                  saddr;
-                       __u32                   fwmark;
 +                      __u32                   lsrc;
 +                      __u32                   gw;
                        __u8                    tos;
                        __u8                    scope;
                } ip4_u;
-@@ -48,6 +50,8 @@
+@@ -43,6 +45,8 @@
+ #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_lsrc      nl_u.ip4_u.lsrc
++#define fl4_lsrc        nl_u.ip4_u.lsrc
 +#define fl4_gw                nl_u.ip4_u.gw
  #define fl4_tos               nl_u.ip4_u.tos
  #define fl4_scope     nl_u.ip4_u.scope
  
-diff -urN linux-2.6.19.old/include/net/ip_fib.h linux-2.6.19.dev/include/net/ip_fib.h
---- linux-2.6.19.old/include/net/ip_fib.h      2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/include/net/ip_fib.h      2006-12-14 03:13:53.000000000 +0100
-@@ -196,7 +196,8 @@
- 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)
-+      if ((FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK) ||
-+          FIB_RES_NH(*res).nh_scope == RT_SCOPE_HOST)
-               ip_fib_main_table->tb_select_default(ip_fib_main_table, flp, res);
- }
-@@ -212,6 +213,8 @@
- #endif /* CONFIG_IP_MULTIPLE_TABLES */
-+extern int fib_result_table(struct fib_result *res);
-+
- /* Exported by fib_frontend.c */
- extern struct nla_policy rtm_ipv4_policy[];
- extern void           ip_fib_init(void);
-@@ -284,4 +287,6 @@
- extern void fib_proc_exit(void);
- #endif
-+extern rwlock_t fib_nhflags_lock;
-+
- #endif  /* _NET_FIB_H */
-diff -urN linux-2.6.19.old/include/net/route.h linux-2.6.19.dev/include/net/route.h
---- linux-2.6.19.old/include/net/route.h       2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/include/net/route.h       2006-12-14 03:13:53.000000000 +0100
-@@ -117,6 +117,7 @@
- extern int            ip_route_output_key(struct rtable **, struct flowi *flp);
- extern int            ip_route_output_flow(struct rtable **rp, struct flowi *flp, struct sock *sk, int flags);
- extern int            ip_route_input(struct sk_buff*, __be32 dst, __be32 src, u8 tos, struct net_device *devin);
-+extern int            ip_route_input_lookup(struct sk_buff*, u32 dst, u32 src, u8 tos, struct net_device *devin, u32 lsrc);
- extern unsigned short ip_rt_frag_needed(struct iphdr *iph, unsigned short new_mtu);
- extern void           ip_rt_send_redirect(struct sk_buff *skb);
-diff -urN linux-2.6.19.old/net/ipv4/fib_frontend.c linux-2.6.19.dev/net/ipv4/fib_frontend.c
---- linux-2.6.19.old/net/ipv4/fib_frontend.c   2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/fib_frontend.c   2006-12-14 03:13:53.000000000 +0100
-@@ -58,6 +58,8 @@
- #define FIB_TABLE_HASHSZ 1
- static struct hlist_head fib_table_hash[FIB_TABLE_HASHSZ];
-+#define FIB_RES_TABLE(r) (RT_TABLE_MAIN)
-+
- #else
- #define FIB_TABLE_HASHSZ 256
-@@ -100,6 +102,9 @@
-       rcu_read_unlock();
-       return NULL;
- }
-+
-+#define FIB_RES_TABLE(r) (fib_result_table(r))
-+
- #endif /* CONFIG_IP_MULTIPLE_TABLES */
- static void fib_flush(void)
-@@ -190,6 +195,9 @@
-                                       .tos = tos } },
-                           .iif = oif };
-       struct fib_result res;
-+      int table;
-+      unsigned char prefixlen;
-+      unsigned char scope;
-       int no_addr, rpf;
-       int ret;
-@@ -211,31 +219,35 @@
-               goto e_inval_res;
-       *spec_dst = FIB_RES_PREFSRC(res);
-       fib_combine_itag(itag, &res);
--#ifdef CONFIG_IP_ROUTE_MULTIPATH
--      if (FIB_RES_DEV(res) == dev || res.fi->fib_nhs > 1)
--#else
-       if (FIB_RES_DEV(res) == dev)
--#endif
-       {
-               ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;
-               fib_res_put(&res);
-               return ret;
-       }
-+      table = FIB_RES_TABLE(&res);
-+      prefixlen = res.prefixlen;
-+      scope = res.scope;
-       fib_res_put(&res);
-       if (no_addr)
-               goto last_resort;
--      if (rpf)
--              goto e_inval;
-       fl.oif = dev->ifindex;
-       ret = 0;
-       if (fib_lookup(&fl, &res) == 0) {
--              if (res.type == RTN_UNICAST) {
-+              if (res.type == RTN_UNICAST &&
-+                  ((table == FIB_RES_TABLE(&res) &&
-+                    res.prefixlen >= prefixlen && res.scope >= scope) ||
-+                   !rpf)) {
-                       *spec_dst = FIB_RES_PREFSRC(res);
-                       ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;
-+                      fib_res_put(&res);
-+                      return ret;
-               }
-               fib_res_put(&res);
-       }
-+      if (rpf)
-+              goto e_inval;
-       return ret;
- last_resort:
-@@ -836,9 +848,7 @@
-       switch (event) {
-       case NETDEV_UP:
-               fib_add_ifaddr(ifa);
--#ifdef CONFIG_IP_ROUTE_MULTIPATH
-               fib_sync_up(ifa->ifa_dev->dev);
--#endif
-               rt_cache_flush(-1);
-               break;
-       case NETDEV_DOWN:
-@@ -874,9 +884,7 @@
-               for_ifa(in_dev) {
-                       fib_add_ifaddr(ifa);
-               } endfor_ifa(in_dev);
--#ifdef CONFIG_IP_ROUTE_MULTIPATH
-               fib_sync_up(dev);
--#endif
-               rt_cache_flush(-1);
-               break;
-       case NETDEV_DOWN:
-diff -urN linux-2.6.19.old/net/ipv4/fib_hash.c linux-2.6.19.dev/net/ipv4/fib_hash.c
---- linux-2.6.19.old/net/ipv4/fib_hash.c       2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/fib_hash.c       2006-12-14 03:13:53.000000000 +0100
-@@ -275,30 +275,38 @@
-       return err;
- }
--static int fn_hash_last_dflt=-1;
--
- static void
- fn_hash_select_default(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
- {
--      int order, last_idx;
-+      int order, last_idx, last_dflt, last_nhsel;
-+      struct fib_alias *first_fa = NULL;
-+      struct hlist_head *head;
-       struct hlist_node *node;
-       struct fib_node *f;
-       struct fib_info *fi = NULL;
-       struct fib_info *last_resort;
-       struct fn_hash *t = (struct fn_hash*)tb->tb_data;
--      struct fn_zone *fz = t->fn_zones[0];
-+      struct fn_zone *fz = t->fn_zones[res->prefixlen];
-+      u32 k;
-       if (fz == NULL)
-               return;
-+      k = fz_key(flp->fl4_dst, fz);
-+      last_dflt = -2;
-+      last_nhsel = 0;
-       last_idx = -1;
-       last_resort = NULL;
-       order = -1;
-       read_lock(&fib_hash_lock);
--      hlist_for_each_entry(f, node, &fz->fz_hash[0], fn_hash) {
-+      head = &fz->fz_hash[fn_hash(k, fz)];
-+      hlist_for_each_entry(f, node, head, fn_hash) {
-               struct fib_alias *fa;
-+              if (f->fn_key != k)
-+                      continue;
-+
-               list_for_each_entry(fa, &f->fn_alias, fa_list) {
-                       struct fib_info *next_fi = fa->fa_info;
-@@ -306,41 +314,52 @@
-                           fa->fa_type != RTN_UNICAST)
-                               continue;
-+                      if (fa->fa_tos &&
-+                          fa->fa_tos != flp->fl4_tos)
-+                              continue;
-                       if (next_fi->fib_priority > res->fi->fib_priority)
-                               break;
--                      if (!next_fi->fib_nh[0].nh_gw ||
--                          next_fi->fib_nh[0].nh_scope != RT_SCOPE_LINK)
--                              continue;
-                       fa->fa_state |= FA_S_ACCESSED;
--                      if (fi == NULL) {
--                              if (next_fi != res->fi)
--                                      break;
--                      } else if (!fib_detect_death(fi, order, &last_resort,
--                                                   &last_idx, &fn_hash_last_dflt)) {
-+                      if (!first_fa) {
-+                              last_dflt = fa->fa_last_dflt;
-+                              first_fa = fa;
-+                      }
-+                      if (fi && !fib_detect_death(fi, order, &last_resort,
-+                              &last_idx, &last_dflt, &last_nhsel, flp)) {
-                               if (res->fi)
-                                       fib_info_put(res->fi);
-                               res->fi = fi;
-                               atomic_inc(&fi->fib_clntref);
--                              fn_hash_last_dflt = order;
-+                              first_fa->fa_last_dflt = order;
-                               goto out;
-                       }
-                       fi = next_fi;
-                       order++;
-               }
-+              break;
-       }
-       if (order <= 0 || fi == NULL) {
--              fn_hash_last_dflt = -1;
-+              if (fi && fi->fib_nhs > 1 &&
-+                  fib_detect_death(fi, order, &last_resort, &last_idx,
-+                      &last_dflt, &last_nhsel, flp) &&
-+                  last_resort == fi) {
-+                      read_lock_bh(&fib_nhflags_lock);
-+                      fi->fib_nh[last_nhsel].nh_flags &= ~RTNH_F_SUSPECT;
-+                      read_unlock_bh(&fib_nhflags_lock);
-+              }
-+              if (first_fa) first_fa->fa_last_dflt = -1;
-               goto out;
-       }
--      if (!fib_detect_death(fi, order, &last_resort, &last_idx, &fn_hash_last_dflt)) {
-+      if (!fib_detect_death(fi, order, &last_resort, &last_idx,
-+                            &last_dflt, &last_nhsel, flp)) {
-               if (res->fi)
-                       fib_info_put(res->fi);
-               res->fi = fi;
-               atomic_inc(&fi->fib_clntref);
--              fn_hash_last_dflt = order;
-+              first_fa->fa_last_dflt = order;
-               goto out;
-       }
-@@ -350,8 +369,11 @@
-               res->fi = last_resort;
-               if (last_resort)
-                       atomic_inc(&last_resort->fib_clntref);
-+              read_lock_bh(&fib_nhflags_lock);
-+              last_resort->fib_nh[last_nhsel].nh_flags &= ~RTNH_F_SUSPECT;
-+              read_unlock_bh(&fib_nhflags_lock);
-+              first_fa->fa_last_dflt = last_idx;
-       }
--      fn_hash_last_dflt = last_idx;
- out:
-       read_unlock(&fib_hash_lock);
- }
-@@ -447,6 +469,7 @@
-                       write_lock_bh(&fib_hash_lock);
-                       fi_drop = fa->fa_info;
-                       fa->fa_info = fi;
-+                      fa->fa_last_dflt = -1;
-                       fa->fa_type = cfg->fc_type;
-                       fa->fa_scope = cfg->fc_scope;
-                       state = fa->fa_state;
-@@ -506,6 +529,7 @@
-       new_fa->fa_type = cfg->fc_type;
-       new_fa->fa_scope = cfg->fc_scope;
-       new_fa->fa_state = 0;
-+      new_fa->fa_last_dflt = -1;
-       /*
-        * Insert new entry to the list.
-diff -urN linux-2.6.19.old/net/ipv4/fib_lookup.h linux-2.6.19.dev/net/ipv4/fib_lookup.h
---- linux-2.6.19.old/net/ipv4/fib_lookup.h     2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/fib_lookup.h     2006-12-14 03:13:53.000000000 +0100
-@@ -9,6 +9,7 @@
-       struct list_head        fa_list;
-       struct rcu_head rcu;
-       struct fib_info         *fa_info;
-+      int                     fa_last_dflt;
-       u8                      fa_tos;
-       u8                      fa_type;
-       u8                      fa_scope;
-@@ -35,6 +36,7 @@
-                                       u8 tos, u32 prio);
- extern int fib_detect_death(struct fib_info *fi, int order,
-                           struct fib_info **last_resort,
--                          int *last_idx, int *dflt);
-+                          int *last_idx, int *dflt, int *last_nhsel,
-+                          const struct flowi *flp);
- #endif /* _FIB_LOOKUP_H */
-diff -urN linux-2.6.19.old/net/ipv4/fib_rules.c linux-2.6.19.dev/net/ipv4/fib_rules.c
---- linux-2.6.19.old/net/ipv4/fib_rules.c      2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/fib_rules.c      2006-12-14 03:13:53.000000000 +0100
-@@ -89,6 +89,11 @@
- }
- #endif
-+int fib_result_table(struct fib_result *res)
-+{
-+      return res->r->table;
-+}
-+
- int fib_lookup(struct flowi *flp, struct fib_result *res)
- {
-       struct fib_lookup_arg arg = {
-@@ -140,7 +145,8 @@
- void fib_select_default(const struct flowi *flp, struct fib_result *res)
- {
-       if (res->r && res->r->action == FR_ACT_TO_TBL &&
--          FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK) {
-+          ((FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK) ||
-+            FIB_RES_NH(*res).nh_scope == RT_SCOPE_HOST)) {
-               struct fib_table *tb;
-               if ((tb = fib_get_table(res->r->table)) != NULL)
-                       tb->tb_select_default(tb, flp, res);
-diff -urN linux-2.6.19.old/net/ipv4/fib_semantics.c linux-2.6.19.dev/net/ipv4/fib_semantics.c
---- linux-2.6.19.old/net/ipv4/fib_semantics.c  2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/fib_semantics.c  2006-12-14 03:13:53.000000000 +0100
-@@ -55,6 +55,7 @@
- static struct hlist_head *fib_info_laddrhash;
- static unsigned int fib_hash_size;
- static unsigned int fib_info_cnt;
-+rwlock_t fib_nhflags_lock = RW_LOCK_UNLOCKED;
- #define DEVINDEX_HASHBITS 8
- #define DEVINDEX_HASHSIZE (1U << DEVINDEX_HASHBITS)
-@@ -190,7 +191,7 @@
- #ifdef CONFIG_NET_CLS_ROUTE
-                   nh->nh_tclassid != onh->nh_tclassid ||
- #endif
--                  ((nh->nh_flags^onh->nh_flags)&~RTNH_F_DEAD))
-+                  ((nh->nh_flags^onh->nh_flags)&~RTNH_F_BADSTATE))
-                       return -1;
-               onh++;
-       } endfor_nexthops(fi);
-@@ -227,7 +228,7 @@
-                   nfi->fib_priority == fi->fib_priority &&
-                   memcmp(nfi->fib_metrics, fi->fib_metrics,
-                          sizeof(fi->fib_metrics)) == 0 &&
--                  ((nfi->fib_flags^fi->fib_flags)&~RTNH_F_DEAD) == 0 &&
-+                  ((nfi->fib_flags^fi->fib_flags)&~RTNH_F_BADSTATE) == 0 &&
-                   (nfi->fib_nhs == 0 || nh_comp(fi, nfi) == 0))
-                       return fi;
-       }
-@@ -319,26 +320,70 @@
- }
- int fib_detect_death(struct fib_info *fi, int order,
--                   struct fib_info **last_resort, int *last_idx, int *dflt)
-+                   struct fib_info **last_resort, int *last_idx, int *dflt,
-+                   int *last_nhsel, const struct flowi *flp)
- {
-       struct neighbour *n;
--      int state = NUD_NONE;
-+      int nhsel;
-+      int state;
-+      struct fib_nh * nh;
-+      u32 dst;
-+      int flag, dead = 1;
-+
-+      /* change_nexthops(fi) { */
-+      for (nhsel = 0, nh = fi->fib_nh; nhsel < fi->fib_nhs; nh++, nhsel++) {
-+              if (flp->oif && flp->oif != nh->nh_oif)
-+                      continue;
-+              if (flp->fl4_gw && flp->fl4_gw != nh->nh_gw && nh->nh_gw &&
-+                  nh->nh_scope == RT_SCOPE_LINK)
-+                      continue;
-+              if (nh->nh_flags & RTNH_F_DEAD)
-+                      continue;
--      n = neigh_lookup(&arp_tbl, &fi->fib_nh[0].nh_gw, fi->fib_dev);
--      if (n) {
--              state = n->nud_state;
--              neigh_release(n);
--      }
--      if (state==NUD_REACHABLE)
--              return 0;
--      if ((state&NUD_VALID) && order != *dflt)
--              return 0;
--      if ((state&NUD_VALID) ||
--          (*last_idx<0 && order > *dflt)) {
--              *last_resort = fi;
--              *last_idx = order;
-+              flag = 0;
-+              if (nh->nh_dev->flags & IFF_NOARP) {
-+                      dead = 0;
-+                      goto setfl;
-+              }
-+
-+              dst = nh->nh_gw;
-+              if (!nh->nh_gw || nh->nh_scope != RT_SCOPE_LINK)
-+                      dst = flp->fl4_dst;
-+
-+              state = NUD_NONE;
-+              n = neigh_lookup(&arp_tbl, &dst, nh->nh_dev);
-+              if (n) {
-+                      state = n->nud_state;
-+                      neigh_release(n);
-+              }
-+              if (state==NUD_REACHABLE ||
-+                      ((state&NUD_VALID) && order != *dflt)) {
-+                      dead = 0;
-+                      goto setfl;
-+              }
-+              if (!(state&NUD_VALID))
-+                      flag = 1;
-+              if (!dead)
-+                      goto setfl;
-+              if ((state&NUD_VALID) ||
-+                  (*last_idx<0 && order >= *dflt)) {
-+                      *last_resort = fi;
-+                      *last_idx = order;
-+                      *last_nhsel = nhsel;
-+              }
-+
-+              setfl:
-+
-+              read_lock_bh(&fib_nhflags_lock);
-+              if (flag)
-+                      nh->nh_flags |= RTNH_F_SUSPECT;
-+              else
-+                      nh->nh_flags &= ~RTNH_F_SUSPECT;
-+              read_unlock_bh(&fib_nhflags_lock);
-       }
--      return 1;
-+      /* } endfor_nexthops(fi) */
-+
-+      return dead;
- }
- #ifdef CONFIG_IP_ROUTE_MULTIPATH
-@@ -508,8 +553,11 @@
-                               return -EINVAL;
-                       if ((dev = __dev_get_by_index(nh->nh_oif)) == NULL)
-                               return -ENODEV;
--                      if (!(dev->flags&IFF_UP))
--                              return -ENETDOWN;
-+                      if (!(dev->flags&IFF_UP)) {
-+                              if (fi->fib_protocol != RTPROT_STATIC)
-+                                      return -ENETDOWN;
-+                              nh->nh_flags |= RTNH_F_DEAD;
-+                      }
-                       nh->nh_dev = dev;
-                       dev_hold(dev);
-                       nh->nh_scope = RT_SCOPE_LINK;
-@@ -529,24 +577,48 @@
-                       /* 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 = fib_lookup(&fl, &res);
-               }
--              err = -EINVAL;
--              if (res.type != RTN_UNICAST && res.type != RTN_LOCAL)
--                      goto out;
--              nh->nh_scope = res.scope;
--              nh->nh_oif = FIB_RES_OIF(res);
--              if ((nh->nh_dev = FIB_RES_DEV(res)) == NULL)
--                      goto out;
--              dev_hold(nh->nh_dev);
--              err = -ENETDOWN;
--              if (!(nh->nh_dev->flags & IFF_UP))
--                      goto out;
--              err = 0;
-+              if (err) {
-+                      struct in_device *in_dev;
-+
-+                      if (err != -ENETUNREACH ||
-+                          fi->fib_protocol != RTPROT_STATIC)
-+                              return err;
-+
-+                      in_dev = inetdev_by_index(nh->nh_oif);
-+                      if (in_dev == NULL ||
-+                          in_dev->dev->flags & IFF_UP) {
-+                              if (in_dev)
-+                                      in_dev_put(in_dev);
-+                              return err;
-+                      }
-+                      nh->nh_flags |= RTNH_F_DEAD;
-+                      nh->nh_scope = RT_SCOPE_LINK;
-+                      nh->nh_dev = in_dev->dev;
-+                      dev_hold(nh->nh_dev);
-+                      in_dev_put(in_dev);
-+              } else {
-+                      err = -EINVAL;
-+                      if (res.type != RTN_UNICAST && res.type != RTN_LOCAL)
-+                              goto out;
-+                      nh->nh_scope = res.scope;
-+                      nh->nh_oif = FIB_RES_OIF(res);
-+                      if ((nh->nh_dev = FIB_RES_DEV(res)) == NULL)
-+                              goto out;
-+                      dev_hold(nh->nh_dev);
-+                      if (!(nh->nh_dev->flags & IFF_UP)) {
-+                              if (fi->fib_protocol != RTPROT_STATIC) {
-+                                      err = -ENETDOWN;
-+                                      goto out;
-+                              }
-+                              nh->nh_flags |= RTNH_F_DEAD;
-+                      }
-+                      err = 0;
- out:
--              fib_res_put(&res);
--              return err;
-+                      fib_res_put(&res);
-+                      return err;
-+              }
-       } else {
-               struct in_device *in_dev;
-@@ -557,8 +629,11 @@
-               if (in_dev == NULL)
-                       return -ENODEV;
-               if (!(in_dev->dev->flags&IFF_UP)) {
--                      in_dev_put(in_dev);
--                      return -ENETDOWN;
-+                      if (fi->fib_protocol != RTPROT_STATIC) {
-+                              in_dev_put(in_dev);
-+                              return -ENETDOWN;
-+                      }
-+                      nh->nh_flags |= RTNH_F_DEAD;
-               }
-               nh->nh_dev = in_dev->dev;
-               dev_hold(nh->nh_dev);
-@@ -881,8 +956,12 @@
-                               for_nexthops(fi) {
-                                       if (nh->nh_flags&RTNH_F_DEAD)
-                                               continue;
--                                      if (!flp->oif || flp->oif == nh->nh_oif)
--                                              break;
-+                                      if (flp->oif && flp->oif != nh->nh_oif)
-+                                              continue;
-+                                      if (flp->fl4_gw && flp->fl4_gw != nh->nh_gw &&
-+                                          nh->nh_gw && nh->nh_scope == RT_SCOPE_LINK)
-+                                              continue;
-+                                      break;
-                               }
- #ifdef CONFIG_IP_ROUTE_MULTIPATH
-                               if (nhsel < fi->fib_nhs) {
-@@ -1056,18 +1135,29 @@
-                       prev_fi = fi;
-                       dead = 0;
-                       change_nexthops(fi) {
--                              if (nh->nh_flags&RTNH_F_DEAD)
--                                      dead++;
--                              else if (nh->nh_dev == dev &&
--                                       nh->nh_scope != scope) {
--                                      nh->nh_flags |= RTNH_F_DEAD;
-+                              if (nh->nh_flags&RTNH_F_DEAD) {
-+                                      if (fi->fib_protocol!=RTPROT_STATIC ||
-+                                          nh->nh_dev == NULL ||
-+                                          __in_dev_get_rtnl(nh->nh_dev) == NULL ||
-+                                          nh->nh_dev->flags&IFF_UP)
-+                                              dead++;
-+                              } else if (nh->nh_dev == dev &&
-+                                         nh->nh_scope != scope) {
-+                                      write_lock_bh(&fib_nhflags_lock);
- #ifdef CONFIG_IP_ROUTE_MULTIPATH
--                                      spin_lock_bh(&fib_multipath_lock);
-+                                      spin_lock(&fib_multipath_lock);
-+                                      nh->nh_flags |= RTNH_F_DEAD;
-                                       fi->fib_power -= nh->nh_power;
-                                       nh->nh_power = 0;
--                                      spin_unlock_bh(&fib_multipath_lock);
-+                                      spin_unlock(&fib_multipath_lock);
-+#else
-+                                      nh->nh_flags |= RTNH_F_DEAD;
- #endif
--                                      dead++;
-+                                      write_unlock_bh(&fib_nhflags_lock);
-+                                      if (fi->fib_protocol!=RTPROT_STATIC ||
-+                                          force ||
-+                                          __in_dev_get_rtnl(dev) == NULL)
-+                                              dead++;
-                               }
- #ifdef CONFIG_IP_ROUTE_MULTIPATH
-                               if (force > 1 && nh->nh_dev == dev) {
-@@ -1086,11 +1176,8 @@
-       return ret;
- }
--#ifdef CONFIG_IP_ROUTE_MULTIPATH
--
- /*
--   Dead device goes up. We wake up dead nexthops.
--   It takes sense only on multipath routes.
-+   Dead device goes up or new address is added. We wake up dead nexthops.
-  */
- int fib_sync_up(struct net_device *dev)
-@@ -1100,8 +1187,10 @@
-       struct hlist_head *head;
-       struct hlist_node *node;
-       struct fib_nh *nh;
--      int ret;
-+      struct fib_result res;
-+      int ret, rep;
-+repeat:
-       if (!(dev->flags&IFF_UP))
-               return 0;
-@@ -1109,6 +1198,7 @@
-       hash = fib_devindex_hashfn(dev->ifindex);
-       head = &fib_info_devhash[hash];
-       ret = 0;
-+      rep = 0;
-       hlist_for_each_entry(nh, node, head, nh_hash) {
-               struct fib_info *fi = nh->nh_parent;
-@@ -1121,19 +1211,37 @@
-               prev_fi = fi;
-               alive = 0;
-               change_nexthops(fi) {
--                      if (!(nh->nh_flags&RTNH_F_DEAD)) {
--                              alive++;
-+                      if (!(nh->nh_flags&RTNH_F_DEAD))
-                               continue;
--                      }
-                       if (nh->nh_dev == NULL || !(nh->nh_dev->flags&IFF_UP))
-                               continue;
-                       if (nh->nh_dev != dev || !__in_dev_get_rtnl(dev))
-                               continue;
-+                      if (nh->nh_gw && fi->fib_protocol == RTPROT_STATIC) {
-+                              struct flowi fl = {
-+                                      .nl_u = { .ip4_u =
-+                                                { .daddr = nh->nh_gw,
-+                                                  .scope = nh->nh_scope } },
-+                                      .oif =  nh->nh_oif,
-+                              };
-+                              if (fib_lookup(&fl, &res) != 0)
-+                                      continue;
-+                              if (res.type != RTN_UNICAST &&
-+                                  res.type != RTN_LOCAL) {
-+                                      fib_res_put(&res);
-+                                      continue;
-+                              }
-+                              nh->nh_scope = res.scope;
-+                              fib_res_put(&res);
-+                              rep = 1;
-+                      }
-                       alive++;
-+#ifdef CONFIG_IP_ROUTE_MULTIPATH
-                       spin_lock_bh(&fib_multipath_lock);
-                       nh->nh_power = 0;
-                       nh->nh_flags &= ~RTNH_F_DEAD;
-                       spin_unlock_bh(&fib_multipath_lock);
-+#endif
-               } endfor_nexthops(fi)
-               if (alive > 0) {
-@@ -1141,10 +1249,14 @@
-                       ret++;
-               }
-       }
-+      if (rep)
-+              goto repeat;
-       return ret;
- }
-+#ifdef CONFIG_IP_ROUTE_MULTIPATH
-+
- /*
-    The algorithm is suboptimal, but it provides really
-    fair weighted route distribution.
-@@ -1153,24 +1265,45 @@
- void fib_select_multipath(const struct flowi *flp, struct fib_result *res)
- {
-       struct fib_info *fi = res->fi;
--      int w;
-+      int w, alive;
-       spin_lock_bh(&fib_multipath_lock);
-+      if (flp->oif) {
-+              int sel = -1;
-+              w = -1;
-+              change_nexthops(fi) {
-+                      if (flp->oif != nh->nh_oif)
-+                              continue;
-+                      if (flp->fl4_gw && flp->fl4_gw != nh->nh_gw &&
-+                          nh->nh_gw && nh->nh_scope == RT_SCOPE_LINK)
-+                              continue;
-+                      if (!(nh->nh_flags&RTNH_F_BADSTATE)) {
-+                              if (nh->nh_power > w) {
-+                                      w = nh->nh_power;
-+                                      sel = nhsel;
-+                              }
-+                      }
-+              } endfor_nexthops(fi);
-+              if (sel >= 0) {
-+                      spin_unlock_bh(&fib_multipath_lock);
-+                      res->nh_sel = sel;
-+                      return;
-+              }
-+              goto last_resort;
-+      }
-+
-+repeat:
-       if (fi->fib_power <= 0) {
-               int power = 0;
-               change_nexthops(fi) {
--                      if (!(nh->nh_flags&RTNH_F_DEAD)) {
-+                      if (!(nh->nh_flags&RTNH_F_BADSTATE)) {
-                               power += nh->nh_weight;
-                               nh->nh_power = nh->nh_weight;
-                       }
-               } endfor_nexthops(fi);
-               fi->fib_power = power;
--              if (power <= 0) {
--                      spin_unlock_bh(&fib_multipath_lock);
--                      /* Race condition: route has just become dead. */
--                      res->nh_sel = 0;
--                      return;
--              }
-+              if (power <= 0)
-+                      goto last_resort;
-       }
-@@ -1180,20 +1313,40 @@
-       w = jiffies % fi->fib_power;
-+      alive = 0;
-       change_nexthops(fi) {
--              if (!(nh->nh_flags&RTNH_F_DEAD) && nh->nh_power) {
-+              if (!(nh->nh_flags&RTNH_F_BADSTATE) && nh->nh_power) {
-                       if ((w -= nh->nh_power) <= 0) {
-                               nh->nh_power--;
-                               fi->fib_power--;
--                              res->nh_sel = nhsel;
-                               spin_unlock_bh(&fib_multipath_lock);
-+                              res->nh_sel = nhsel;
-                               return;
-                       }
-+                      alive = 1;
-+              }
-+      } endfor_nexthops(fi);
-+      if (alive) {
-+              fi->fib_power = 0;
-+              goto repeat;
-+      }
-+
-+last_resort:
-+
-+      for_nexthops(fi) {
-+              if (!(nh->nh_flags&RTNH_F_DEAD)) {
-+                      if (flp->oif && flp->oif != nh->nh_oif)
-+                              continue;
-+                      if (flp->fl4_gw && flp->fl4_gw != nh->nh_gw &&
-+                          nh->nh_gw && nh->nh_scope == RT_SCOPE_LINK)
-+                              continue;
-+                      spin_unlock_bh(&fib_multipath_lock);
-+                      res->nh_sel = nhsel;
-+                      return;
-               }
-       } endfor_nexthops(fi);
-       /* Race condition: route has just become dead. */
--      res->nh_sel = 0;
-       spin_unlock_bh(&fib_multipath_lock);
- }
- #endif
-diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_nat_core.c linux-2.6.19.dev/net/ipv4/netfilter/ip_nat_core.c
---- linux-2.6.19.old/net/ipv4/netfilter/ip_nat_core.c  2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_nat_core.c  2006-12-14 03:13:53.000000000 +0100
-@@ -573,6 +573,53 @@
- EXPORT_SYMBOL_GPL(ip_nat_port_range_to_nfattr);
- #endif
-+unsigned int
-+ip_nat_route_input(unsigned int hooknum,
-+              struct sk_buff **pskb,
-+              const struct net_device *in,
-+              const struct net_device *out,
-+              int (*okfn)(struct sk_buff *))
-+{
-+      struct sk_buff *skb = *pskb;
-+      struct iphdr *iph;
-+      struct ip_conntrack *conn;
-+      enum ip_conntrack_info ctinfo;
-+      enum ip_conntrack_dir dir;
-+      unsigned long statusbit;
-+      u32 saddr;
-+
-+      if (!(conn = ip_conntrack_get(skb, &ctinfo)))
-+              return NF_ACCEPT;
-+
-+      if (!(conn->status & IPS_NAT_DONE_MASK))
-+              return NF_ACCEPT;
-+      dir = CTINFO2DIR(ctinfo);
-+      statusbit = IPS_SRC_NAT;
-+      if (dir == IP_CT_DIR_REPLY)
-+              statusbit ^= IPS_NAT_MASK;
-+      if (!(conn->status & statusbit))
-+              return NF_ACCEPT;
-+
-+      if (skb->dst)
-+              return NF_ACCEPT;
-+
-+      if (skb->len < sizeof(struct iphdr))
-+              return NF_ACCEPT;
-+
-+      /* use daddr in other direction as masquerade address (lsrc) */
-+      iph = skb->nh.iph;
-+      saddr = conn->tuplehash[!dir].tuple.dst.ip;
-+      if (saddr == iph->saddr)
-+              return NF_ACCEPT;
-+
-+      if (ip_route_input_lookup(skb, iph->daddr, iph->saddr, iph->tos,
-+          skb->dev, saddr))
-+              return NF_DROP;
-+
-+      return NF_ACCEPT;
-+}
-+EXPORT_SYMBOL_GPL(ip_nat_route_input);
-+
- static int __init ip_nat_init(void)
- {
-       size_t i;
-diff -urN linux-2.6.19.old/net/ipv4/netfilter/ip_nat_standalone.c linux-2.6.19.dev/net/ipv4/netfilter/ip_nat_standalone.c
---- linux-2.6.19.old/net/ipv4/netfilter/ip_nat_standalone.c    2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/netfilter/ip_nat_standalone.c    2006-12-14 03:13:53.000000000 +0100
-@@ -325,6 +325,14 @@
-               .hooknum        = NF_IP_LOCAL_OUT,
-               .priority       = NF_IP_PRI_NAT_DST,
-       },
-+      /* Before routing, route before mangling */
-+      {
-+              .hook           = ip_nat_route_input,
-+              .owner          = THIS_MODULE,
-+              .pf             = PF_INET,
-+              .hooknum        = NF_IP_PRE_ROUTING,
-+              .priority       = NF_IP_PRI_LAST-1,
-+      },
-       /* After packet filtering, change source */
-       {
-               .hook           = ip_nat_fn,
-diff -urN linux-2.6.19.old/net/ipv4/netfilter/ipt_MASQUERADE.c linux-2.6.19.dev/net/ipv4/netfilter/ipt_MASQUERADE.c
---- linux-2.6.19.old/net/ipv4/netfilter/ipt_MASQUERADE.c       2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/netfilter/ipt_MASQUERADE.c       2006-12-14 03:13:53.000000000 +0100
-@@ -85,13 +85,31 @@
-               return NF_ACCEPT;
-       mr = targinfo;
--      rt = (struct rtable *)(*pskb)->dst;
--      newsrc = inet_select_addr(out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
--      if (!newsrc) {
--              printk("MASQUERADE: %s ate my IP address\n", out->name);
--              return NF_DROP;
-+
-+      {
-+              struct flowi fl = { .nl_u = { .ip4_u =
-+                                            { .daddr = (*pskb)->nh.iph->daddr,
-+                                              .tos = (RT_TOS((*pskb)->nh.iph->tos) |
-+                                                      RTO_CONN),
-+                                              .gw = ((struct rtable *) (*pskb)->dst)->rt_gateway,
-+#ifdef CONFIG_IP_ROUTE_FWMARK
-+                                              .fwmark = (*pskb)->nfmark
-+#endif
-+                                            } },
-+                                  .oif = out->ifindex };
-+              if (ip_route_output_key(&rt, &fl) != 0) {
-+                      /* Funky routing can do this. */
-+                      if (net_ratelimit())
-+                              printk("MASQUERADE:"
-+                                     " No route: Rusty's brain broke!\n");
-+                      return NF_DROP;
-+              }
-       }
-+      newsrc = rt->rt_src;
-+      DEBUGP("newsrc = %u.%u.%u.%u\n", NIPQUAD(newsrc));
-+      ip_rt_put(rt);
-+
-       write_lock_bh(&masq_lock);
-       ct->nat.masq_index = out->ifindex;
-       write_unlock_bh(&masq_lock);
-diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
---- linux-2.6.19.old/net/ipv4/route.c  2006-11-29 22:57:37.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/route.c  2006-12-14 03:13:53.000000000 +0100
-@@ -1211,6 +1211,7 @@
+diff -urN linux-2.6.21.1/net/ipv4/route.c linux-2.6.21.1.new/net/ipv4/route.c
+--- linux-2.6.21.1/net/ipv4/route.c    2007-04-27 23:49:26.000000000 +0200
++++ linux-2.6.21.1.new/net/ipv4/route.c        2007-05-14 13:09:24.000000000 +0200
+@@ -1208,6 +1208,7 @@
  
                                /* Gateway is different ... */
                                rt->rt_gateway          = new_gw;
@@ -944,15 +59,15 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  
                                /* Redirect received -> path was valid */
                                dst_confirm(&rth->u.dst);
-@@ -1647,6 +1648,7 @@
-       rth->fl.fl4_fwmark= skb->nfmark;
- #endif
+@@ -1643,6 +1644,7 @@
+       rth->fl.fl4_tos = tos;
+       rth->fl.mark    = skb->mark;
        rth->fl.fl4_src = saddr;
 +      rth->fl.fl4_lsrc = 0;
        rth->rt_src     = saddr;
  #ifdef CONFIG_NET_CLS_ROUTE
        rth->u.dst.tclassid = itag;
-@@ -1657,6 +1659,7 @@
+@@ -1653,6 +1655,7 @@
        dev_hold(rth->u.dst.dev);
        rth->idev       = in_dev_get(rth->u.dst.dev);
        rth->fl.oif     = 0;
@@ -960,16 +75,16 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
        rth->rt_gateway = daddr;
        rth->rt_spec_dst= spec_dst;
        rth->rt_type    = RTN_MULTICAST;
-@@ -1721,7 +1724,7 @@
-                                 struct fib_result* res, 
-                                 struct in_device *in_dev, 
-                                 __be32 daddr, __be32 saddr, u32 tos,
--                                struct rtable **result) 
-+                                u32 lsrc, struct rtable **result) 
+@@ -1716,7 +1719,7 @@
+ static inline int __mkroute_input(struct sk_buff *skb,
+                                 struct fib_result* res,
+                                 struct in_device *in_dev,
+-                                __be32 daddr, __be32 saddr, u32 tos,
++                                __be32 daddr, __be32 saddr, u32 tos, u32 lsrc,
+                                 struct rtable **result)
  {
  
-       struct rtable *rth;
-@@ -1755,6 +1758,7 @@
+@@ -1751,6 +1754,7 @@
                flags |= RTCF_DIRECTSRC;
  
        if (out_dev == in_dev && err && !(flags & (RTCF_NAT | RTCF_MASQ)) &&
@@ -977,15 +92,15 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
            (IN_DEV_SHARED_MEDIA(out_dev) ||
             inet_addr_onlink(out_dev, saddr, FIB_RES_GW(*res))))
                flags |= RTCF_DOREDIRECT;
-@@ -1794,6 +1798,7 @@
- #endif
+@@ -1788,6 +1792,7 @@
+       rth->fl.mark    = skb->mark;
        rth->fl.fl4_src = saddr;
        rth->rt_src     = saddr;
 +      rth->fl.fl4_lsrc        = lsrc;
        rth->rt_gateway = daddr;
        rth->rt_iif     =
                rth->fl.iif     = in_dev->dev->ifindex;
-@@ -1801,6 +1806,7 @@
+@@ -1795,6 +1800,7 @@
        dev_hold(rth->u.dst.dev);
        rth->idev       = in_dev_get(rth->u.dst.dev);
        rth->fl.oif     = 0;
@@ -993,8 +108,8 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
        rth->rt_spec_dst= spec_dst;
  
        rth->u.dst.input = ip_forward;
-@@ -1822,19 +1828,21 @@
-                                      struct fib_result* res, 
+@@ -1816,19 +1822,21 @@
+                                      struct fib_result* res,
                                       const struct flowi *fl,
                                       struct in_device *in_dev,
 -                                     __be32 daddr, __be32 saddr, u32 tos)
@@ -1018,8 +133,8 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
        if (err)
                return err;
  
-@@ -1847,7 +1855,8 @@
-                                  struct fib_result* res, 
+@@ -1841,7 +1849,8 @@
+                                  struct fib_result* res,
                                   const struct flowi *fl,
                                   struct in_device *in_dev,
 -                                 __be32 daddr, __be32 saddr, u32 tos)
@@ -1028,16 +143,16 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  {
  #ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
        struct rtable* rth = NULL, *rtres;
-@@ -1863,7 +1872,7 @@
+@@ -1857,7 +1866,7 @@
        /* distinguish between multipath and singlepath */
        if (hopcount < 2)
                return ip_mkroute_input_def(skb, res, fl, in_dev, daddr,
 -                                          saddr, tos);
 +                                          saddr, tos, 0);
-       
        /* add all alternatives to the routing cache */
        for (hop = 0; hop < hopcount; hop++) {
-@@ -1875,7 +1884,7 @@
+@@ -1869,7 +1878,7 @@
  
                /* create a routing cache entry */
                err = __mkroute_input(skb, res, in_dev, daddr, saddr, tos,
@@ -1046,7 +161,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
                if (err)
                        return err;
  
-@@ -1895,7 +1904,7 @@
+@@ -1889,7 +1898,7 @@
        skb->dst = &rtres->u.dst;
        return err;
  #else /* CONFIG_IP_ROUTE_MULTIPATH_CACHED  */
@@ -1055,7 +170,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  #endif /* CONFIG_IP_ROUTE_MULTIPATH_CACHED  */
  }
  
-@@ -1911,20 +1920,20 @@
+@@ -1905,18 +1914,18 @@
   */
  
  static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
@@ -1067,19 +182,17 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
        struct flowi fl = { .nl_u = { .ip4_u =
                                      { .daddr = daddr,
 -                                      .saddr = saddr,
-+                                      .saddr = lsrc? : saddr,
++                                      .saddr = lsrc ? : saddr,
                                        .tos = tos,
                                        .scope = RT_SCOPE_UNIVERSE,
- #ifdef CONFIG_IP_ROUTE_FWMARK
-                                       .fwmark = skb->nfmark
- #endif
                                      } },
+                           .mark = skb->mark,
 -                          .iif = dev->ifindex };
 +                          .iif = lsrc? loopback_dev.ifindex : dev->ifindex };
        unsigned        flags = 0;
        u32             itag = 0;
        struct rtable * rth;
-@@ -1957,6 +1966,12 @@
+@@ -1949,6 +1958,12 @@
        if (BADCLASS(daddr) || ZERONET(daddr) || LOOPBACK(daddr))
                goto martian_destination;
  
@@ -1092,7 +205,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
        /*
         *      Now we are ready to route packet.
         */
-@@ -1966,6 +1981,10 @@
+@@ -1958,6 +1973,10 @@
                goto no_route;
        }
        free_res = 1;
@@ -1103,7 +216,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  
        RT_CACHE_STAT_INC(in_slow_tot);
  
-@@ -1990,7 +2009,7 @@
+@@ -1982,7 +2001,7 @@
        if (res.type != RTN_UNICAST)
                goto martian_destination;
  
@@ -1112,7 +225,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
        if (err == -ENOBUFS)
                goto e_nobufs;
        if (err == -EINVAL)
-@@ -2005,6 +2024,8 @@
+@@ -1997,6 +2016,8 @@
  brd_input:
        if (skb->protocol != htons(ETH_P_IP))
                goto e_inval;
@@ -1121,7 +234,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  
        if (ZERONET(saddr))
                spec_dst = inet_select_addr(dev, 0, RT_SCOPE_LINK);
-@@ -2047,6 +2068,7 @@
+@@ -2037,6 +2058,7 @@
        rth->u.dst.dev  = &loopback_dev;
        dev_hold(rth->u.dst.dev);
        rth->idev       = in_dev_get(rth->u.dst.dev);
@@ -1129,7 +242,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
        rth->rt_gateway = daddr;
        rth->rt_spec_dst= spec_dst;
        rth->u.dst.input= ip_local_deliver;
-@@ -2096,8 +2118,9 @@
+@@ -2086,8 +2108,9 @@
        goto e_inval;
  }
  
@@ -1141,15 +254,15 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  {
        struct rtable * rth;
        unsigned        hash;
-@@ -2112,6 +2135,7 @@
+@@ -2102,6 +2125,7 @@
                if (rth->fl.fl4_dst == daddr &&
                    rth->fl.fl4_src == saddr &&
                    rth->fl.iif == iif &&
 +                  rth->fl.fl4_lsrc == lsrc &&
                    rth->fl.oif == 0 &&
- #ifdef CONFIG_IP_ROUTE_FWMARK
-                   rth->fl.fl4_fwmark == skb->nfmark &&
-@@ -2160,7 +2184,19 @@
+                   rth->fl.mark == skb->mark &&
+                   rth->fl.fl4_tos == tos) {
+@@ -2148,7 +2172,19 @@
                rcu_read_unlock();
                return -EINVAL;
        }
@@ -1170,15 +283,15 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  }
  
  static inline int __mkroute_output(struct rtable **result,
-@@ -2239,6 +2275,7 @@
+@@ -2227,6 +2263,7 @@
        rth->fl.fl4_tos = tos;
        rth->fl.fl4_src = oldflp->fl4_src;
        rth->fl.oif     = oldflp->oif;
-+      rth->fl.fl4_gw  = oldflp->fl4_gw;
- #ifdef CONFIG_IP_ROUTE_FWMARK
-       rth->fl.fl4_fwmark= oldflp->fl4_fwmark;
- #endif
-@@ -2381,6 +2418,7 @@
++      rth->fl.fl4_gw  = oldflp->fl4_gw;
+       rth->fl.mark    = oldflp->mark;
+       rth->rt_dst     = fl->fl4_dst;
+       rth->rt_src     = fl->fl4_src;
+@@ -2367,6 +2404,7 @@
        struct flowi fl = { .nl_u = { .ip4_u =
                                      { .daddr = oldflp->fl4_dst,
                                        .saddr = oldflp->fl4_src,
@@ -1186,7 +299,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
                                        .tos = tos & IPTOS_RT_MASK,
                                        .scope = ((tos & RTO_ONLINK) ?
                                                  RT_SCOPE_LINK :
-@@ -2486,6 +2524,7 @@
+@@ -2470,6 +2508,7 @@
                dev_out = &loopback_dev;
                dev_hold(dev_out);
                fl.oif = loopback_dev.ifindex;
@@ -1194,7 +307,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
                res.type = RTN_LOCAL;
                flags |= RTCF_LOCAL;
                goto make_route;
-@@ -2493,7 +2532,7 @@
+@@ -2477,7 +2516,7 @@
  
        if (fib_lookup(&fl, &res)) {
                res.fi = NULL;
@@ -1203,7 +316,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
                        /* Apparently, routing tables are wrong. Assume,
                           that the destination is on link.
  
-@@ -2533,6 +2572,7 @@
+@@ -2517,6 +2556,7 @@
                dev_out = &loopback_dev;
                dev_hold(dev_out);
                fl.oif = dev_out->ifindex;
@@ -1211,7 +324,7 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
                if (res.fi)
                        fib_info_put(res.fi);
                res.fi = NULL;
-@@ -2540,13 +2580,12 @@
+@@ -2524,13 +2564,12 @@
                goto make_route;
        }
  
@@ -1228,15 +341,15 @@ diff -urN linux-2.6.19.old/net/ipv4/route.c linux-2.6.19.dev/net/ipv4/route.c
  
        if (!fl.fl4_src)
                fl.fl4_src = FIB_RES_PREFSRC(res);
-@@ -2583,6 +2622,7 @@
+@@ -2567,6 +2606,7 @@
                    rth->fl.fl4_src == flp->fl4_src &&
                    rth->fl.iif == 0 &&
                    rth->fl.oif == flp->oif &&
 +                  rth->fl.fl4_gw == flp->fl4_gw &&
- #ifdef CONFIG_IP_ROUTE_FWMARK
-                   rth->fl.fl4_fwmark == flp->fl4_fwmark &&
- #endif
-@@ -3221,3 +3261,4 @@
+                   rth->fl.mark == flp->mark &&
+                   !((rth->fl.fl4_tos ^ flp->fl4_tos) &
+                           (IPTOS_RT_MASK | RTO_ONLINK))) {
+@@ -3199,3 +3239,4 @@
  EXPORT_SYMBOL(__ip_select_ident);
  EXPORT_SYMBOL(ip_route_input);
  EXPORT_SYMBOL(ip_route_output_key);