diff options
Diffstat (limited to 'openwrt/target/linux/generic-2.6/patches/201-multiple_default_gateways.patch')
| -rw-r--r-- | openwrt/target/linux/generic-2.6/patches/201-multiple_default_gateways.patch | 1264 |
1 files changed, 0 insertions, 1264 deletions
diff --git a/openwrt/target/linux/generic-2.6/patches/201-multiple_default_gateways.patch b/openwrt/target/linux/generic-2.6/patches/201-multiple_default_gateways.patch deleted file mode 100644 index b05012ff10..0000000000 --- a/openwrt/target/linux/generic-2.6/patches/201-multiple_default_gateways.patch +++ /dev/null @@ -1,1264 +0,0 @@ -diff -ur v2.6.14/linux/include/linux/netfilter_ipv4/ip_nat.h linux/include/linux/netfilter_ipv4/ip_nat.h ---- v2.6.14/linux/include/linux/netfilter_ipv4/ip_nat.h 2005-10-29 14:15:09.000000000 +0300 -+++ linux/include/linux/netfilter_ipv4/ip_nat.h 2005-10-29 18:11:32.885759304 +0300 -@@ -63,6 +63,13 @@ - - struct ip_conntrack; - -+/* Call input routing for SNAT-ed traffic */ -+extern 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 *)); -+ - /* 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 -ur v2.6.14/linux/include/linux/rtnetlink.h linux/include/linux/rtnetlink.h ---- v2.6.14/linux/include/linux/rtnetlink.h 2005-10-29 14:15:09.000000000 +0300 -+++ linux/include/linux/rtnetlink.h 2005-10-29 18:11:21.299520680 +0300 -@@ -292,6 +292,8 @@ - #define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */ - #define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */ - #define RTNH_F_ONLINK 4 /* Gateway is forced on link */ -+#define RTNH_F_SUSPECT 8 /* We don't know the real state */ -+#define RTNH_F_BADSTATE (RTNH_F_DEAD | RTNH_F_SUSPECT) - - /* Macros to handle hexthops */ - -diff -ur v2.6.14/linux/include/net/flow.h linux/include/net/flow.h ---- v2.6.14/linux/include/net/flow.h 2005-06-18 08:50:52.000000000 +0300 -+++ linux/include/net/flow.h 2005-10-29 18:11:32.885759304 +0300 -@@ -19,6 +19,8 @@ - __u32 daddr; - __u32 saddr; - __u32 fwmark; -+ __u32 lsrc; -+ __u32 gw; - __u8 tos; - __u8 scope; - } ip4_u; -@@ -46,6 +48,8 @@ - #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_gw nl_u.ip4_u.gw - #define fl4_tos nl_u.ip4_u.tos - #define fl4_scope nl_u.ip4_u.scope - -diff -ur v2.6.14/linux/include/net/ip_fib.h linux/include/net/ip_fib.h ---- v2.6.14/linux/include/net/ip_fib.h 2005-10-29 14:15:09.000000000 +0300 -+++ linux/include/net/ip_fib.h 2005-10-29 18:11:21.300520528 +0300 -@@ -195,7 +195,8 @@ - - 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); - } - -@@ -207,6 +208,7 @@ - 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); -+extern int fib_result_table(struct fib_result *res); - - static inline struct fib_table *fib_get_table(int id) - { -@@ -300,4 +302,6 @@ - extern void fib_proc_exit(void); - #endif - -+extern rwlock_t fib_nhflags_lock; -+ - #endif /* _NET_FIB_H */ -diff -ur v2.6.14/linux/include/net/route.h linux/include/net/route.h ---- v2.6.14/linux/include/net/route.h 2005-10-29 14:15:09.000000000 +0300 -+++ linux/include/net/route.h 2005-10-29 18:11:32.885759304 +0300 -@@ -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*, u32 dst, u32 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 -ur v2.6.14/linux/net/ipv4/fib_frontend.c linux/net/ipv4/fib_frontend.c ---- v2.6.14/linux/net/ipv4/fib_frontend.c 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/fib_frontend.c 2005-10-29 18:11:21.300520528 +0300 -@@ -54,6 +54,8 @@ - struct fib_table *ip_fib_local_table; - struct fib_table *ip_fib_main_table; - -+#define FIB_RES_TABLE(r) (RT_TABLE_MAIN) -+ - #else - - #define RT_TABLE_MIN 1 -@@ -71,6 +73,7 @@ - return tb; - } - -+#define FIB_RES_TABLE(r) (fib_result_table(r)) - - #endif /* CONFIG_IP_MULTIPLE_TABLES */ - -@@ -168,6 +171,9 @@ - .tos = tos } }, - .iif = oif }; - struct fib_result res; -+ int table; -+ unsigned char prefixlen; -+ unsigned char scope; - int no_addr, rpf; - int ret; - -@@ -189,31 +195,35 @@ - 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: -@@ -584,9 +594,7 @@ - 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: -@@ -622,9 +630,7 @@ - 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 -ur v2.6.14/linux/net/ipv4/fib_hash.c linux/net/ipv4/fib_hash.c ---- v2.6.14/linux/net/ipv4/fib_hash.c 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/fib_hash.c 2005-10-29 18:11:21.301520376 +0300 -@@ -276,30 +276,38 @@ - 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; - -@@ -307,41 +315,52 @@ - 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; - } - -@@ -351,8 +370,11 @@ - 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); - } -@@ -451,6 +473,7 @@ - write_lock_bh(&fib_hash_lock); - fi_drop = fa->fa_info; - fa->fa_info = fi; -+ fa->fa_last_dflt = -1; - fa->fa_type = type; - fa->fa_scope = r->rtm_scope; - state = fa->fa_state; -@@ -510,6 +533,7 @@ - new_fa->fa_type = type; - new_fa->fa_scope = r->rtm_scope; - new_fa->fa_state = 0; -+ new_fa->fa_last_dflt = -1; - - /* - * Insert new entry to the list. -diff -ur v2.6.14/linux/net/ipv4/fib_lookup.h linux/net/ipv4/fib_lookup.h ---- v2.6.14/linux/net/ipv4/fib_lookup.h 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/fib_lookup.h 2005-10-29 18:11:21.302520224 +0300 -@@ -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; -@@ -40,6 +41,7 @@ - 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 -ur v2.6.14/linux/net/ipv4/fib_rules.c linux/net/ipv4/fib_rules.c ---- v2.6.14/linux/net/ipv4/fib_rules.c 2005-08-29 07:51:29.000000000 +0300 -+++ linux/net/ipv4/fib_rules.c 2005-10-29 18:11:21.302520224 +0300 -@@ -280,6 +280,11 @@ - } - } - -+int fib_result_table(struct fib_result *res) -+{ -+ return res->r->r_table; -+} -+ - int fib_lookup(const struct flowi *flp, struct fib_result *res) - { - int err; -@@ -342,7 +347,8 @@ - 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) { -+ ((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->r_table)) != NULL) - tb->tb_select_default(tb, flp, res); -diff -ur v2.6.14/linux/net/ipv4/fib_semantics.c linux/net/ipv4/fib_semantics.c ---- v2.6.14/linux/net/ipv4/fib_semantics.c 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/fib_semantics.c 2005-10-29 18:11:32.886759152 +0300 -@@ -53,6 +53,7 @@ - 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) -@@ -188,7 +189,7 @@ - #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); -@@ -225,7 +226,7 @@ - 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; - } -@@ -317,26 +318,70 @@ - } - - 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 -@@ -507,8 +552,11 @@ - 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; -@@ -523,24 +571,48 @@ - /* 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; - -@@ -551,8 +623,11 @@ - 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); -@@ -890,8 +965,12 @@ - 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) { -@@ -1197,18 +1276,29 @@ - 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) { -@@ -1227,11 +1317,8 @@ - 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) -@@ -1241,8 +1328,10 @@ - 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; - -@@ -1250,6 +1339,7 @@ - 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; -@@ -1262,19 +1352,37 @@ - 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) { -@@ -1282,10 +1390,14 @@ - ret++; - } - } -+ if (rep) -+ goto repeat; - - return ret; - } - -+#ifdef CONFIG_IP_ROUTE_MULTIPATH -+ - /* - The algorithm is suboptimal, but it provides really - fair weighted route distribution. -@@ -1294,24 +1406,45 @@ - 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; - } - - -@@ -1321,20 +1454,40 @@ - - 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 -ur v2.6.14/linux/net/ipv4/netfilter/ip_nat_core.c linux/net/ipv4/netfilter/ip_nat_core.c ---- v2.6.14/linux/net/ipv4/netfilter/ip_nat_core.c 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/netfilter/ip_nat_core.c 2005-10-29 18:11:32.887759000 +0300 -@@ -591,6 +591,53 @@ - 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 -ur v2.6.14/linux/net/ipv4/netfilter/ip_nat_standalone.c linux/net/ipv4/netfilter/ip_nat_standalone.c ---- v2.6.14/linux/net/ipv4/netfilter/ip_nat_standalone.c 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/netfilter/ip_nat_standalone.c 2005-10-29 18:11:32.887759000 +0300 -@@ -266,6 +266,14 @@ - .priority = NF_IP_PRI_NAT_DST, - }; - -+/* Before routing, route before mangling */ -+static struct nf_hook_ops ip_nat_inr_ops = { -+ .hook = ip_nat_route_input, -+ .pf = PF_INET, -+ .hooknum = NF_IP_PRE_ROUTING, -+ .priority = NF_IP_PRI_LAST-1, -+}; -+ - /* After packet filtering, change source */ - static struct nf_hook_ops ip_nat_out_ops = { - .hook = ip_nat_out, -@@ -330,10 +338,15 @@ - printk("ip_nat_init: can't register in hook.\n"); - goto cleanup_rule_init; - } -+ ret = nf_register_hook(&ip_nat_inr_ops); -+ if (ret < 0) { -+ printk("ip_nat_init: can't register inr hook.\n"); -+ goto cleanup_inops; -+ } - ret = nf_register_hook(&ip_nat_out_ops); - if (ret < 0) { - printk("ip_nat_init: can't register out hook.\n"); -- goto cleanup_inops; -+ goto cleanup_inrops; - } - ret = nf_register_hook(&ip_nat_adjust_in_ops); - if (ret < 0) { -@@ -367,6 +380,8 @@ - nf_unregister_hook(&ip_nat_adjust_in_ops); - cleanup_outops: - nf_unregister_hook(&ip_nat_out_ops); -+ cleanup_inrops: -+ nf_unregister_hook(&ip_nat_inr_ops); - cleanup_inops: - nf_unregister_hook(&ip_nat_in_ops); - cleanup_rule_init: -diff -ur v2.6.14/linux/net/ipv4/netfilter/ipt_MASQUERADE.c linux/net/ipv4/netfilter/ipt_MASQUERADE.c ---- v2.6.14/linux/net/ipv4/netfilter/ipt_MASQUERADE.c 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/netfilter/ipt_MASQUERADE.c 2005-10-29 18:11:32.887759000 +0300 -@@ -97,13 +97,31 @@ - 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 -ur v2.6.14/linux/net/ipv4/route.c linux/net/ipv4/route.c ---- v2.6.14/linux/net/ipv4/route.c 2005-10-29 14:15:09.000000000 +0300 -+++ linux/net/ipv4/route.c 2005-10-29 18:11:32.889758696 +0300 -@@ -1197,6 +1197,7 @@ - - /* Gateway is different ... */ - rt->rt_gateway = new_gw; -+ if (rt->fl.fl4_gw) rt->fl.fl4_gw = new_gw; - - /* Redirect received -> path was valid */ - dst_confirm(&rth->u.dst); -@@ -1632,6 +1633,7 @@ - rth->fl.fl4_fwmark= skb->nfmark; - #endif - rth->fl.fl4_src = saddr; -+ rth->fl.fl4_lsrc = 0; - rth->rt_src = saddr; - #ifdef CONFIG_NET_CLS_ROUTE - rth->u.dst.tclassid = itag; -@@ -1642,6 +1644,7 @@ - dev_hold(rth->u.dst.dev); - rth->idev = in_dev_get(rth->u.dst.dev); - rth->fl.oif = 0; -+ rth->fl.fl4_gw = 0; - rth->rt_gateway = daddr; - rth->rt_spec_dst= spec_dst; - rth->rt_type = RTN_MULTICAST; -@@ -1706,7 +1709,7 @@ - struct fib_result* res, - struct in_device *in_dev, - u32 daddr, u32 saddr, u32 tos, -- struct rtable **result) -+ u32 lsrc, struct rtable **result) - { - - struct rtable *rth; -@@ -1739,6 +1742,7 @@ - flags |= RTCF_DIRECTSRC; - - if (out_dev == in_dev && err && !(flags & (RTCF_NAT | RTCF_MASQ)) && -+ !lsrc && - (IN_DEV_SHARED_MEDIA(out_dev) || - inet_addr_onlink(out_dev, saddr, FIB_RES_GW(*res)))) - flags |= RTCF_DOREDIRECT; -@@ -1778,6 +1782,7 @@ - #endif - 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; -@@ -1785,6 +1790,7 @@ - dev_hold(rth->u.dst.dev); - rth->idev = in_dev_get(rth->u.dst.dev); - rth->fl.oif = 0; -+ rth->fl.fl4_gw = 0; - rth->rt_spec_dst= spec_dst; - - rth->u.dst.input = ip_forward; -@@ -1806,19 +1812,20 @@ - struct fib_result* res, - const struct flowi *fl, - struct in_device *in_dev, -- u32 daddr, u32 saddr, u32 tos) -+ u32 daddr, u32 saddr, u32 tos, u32 lsrc) - { - struct rtable* rth = NULL; - int err; - unsigned hash; - -+ fib_select_default(fl, res); - #ifdef CONFIG_IP_ROUTE_MULTIPATH -- if (res->fi && res->fi->fib_nhs > 1 && fl->oif == 0) -+ if (res->fi && res->fi->fib_nhs > 1) - fib_select_multipath(fl, res); - #endif - - /* create a routing cache entry */ -- err = __mkroute_input(skb, res, in_dev, daddr, saddr, tos, &rth); -+ err = __mkroute_input(skb, res, in_dev, daddr, saddr, tos, lsrc, &rth); - if (err) - return err; - -@@ -1831,7 +1838,7 @@ - struct fib_result* res, - const struct flowi *fl, - struct in_device *in_dev, -- u32 daddr, u32 saddr, u32 tos) -+ u32 daddr, u32 saddr, u32 tos, u32 lsrc) - { - #ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED - struct rtable* rth = NULL, *rtres; -@@ -1847,7 +1854,7 @@ - /* 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++) { -@@ -1859,7 +1866,7 @@ - - /* create a routing cache entry */ - err = __mkroute_input(skb, res, in_dev, daddr, saddr, tos, -- &rth); -+ 0, &rth); - if (err) - return err; - -@@ -1879,7 +1886,7 @@ - skb->dst = &rtres->u.dst; - return err; - #else /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */ -- return ip_mkroute_input_def(skb, res, fl, in_dev, daddr, saddr, tos); -+ return ip_mkroute_input_def(skb, res, fl, in_dev, daddr, saddr, tos, lsrc); - #endif /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */ - } - -@@ -1895,20 +1902,20 @@ - */ - - static int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr, -- u8 tos, struct net_device *dev) -+ u8 tos, struct net_device *dev, u32 lsrc) - { - struct fib_result res; - struct in_device *in_dev = in_dev_get(dev); - struct flowi fl = { .nl_u = { .ip4_u = - { .daddr = daddr, -- .saddr = saddr, -+ .saddr = lsrc? : saddr, - .tos = tos, - .scope = RT_SCOPE_UNIVERSE, - #ifdef CONFIG_IP_ROUTE_FWMARK - .fwmark = skb->nfmark - #endif - } }, -- .iif = dev->ifindex }; -+ .iif = lsrc? loopback_dev.ifindex : dev->ifindex }; - unsigned flags = 0; - u32 itag = 0; - struct rtable * rth; -@@ -1941,6 +1948,12 @@ - if (BADCLASS(daddr) || ZERONET(daddr) || LOOPBACK(daddr)) - goto martian_destination; - -+ if (lsrc) { -+ if (MULTICAST(lsrc) || BADCLASS(lsrc) || -+ ZERONET(lsrc) || LOOPBACK(lsrc)) -+ goto e_inval; -+ } -+ - /* - * Now we are ready to route packet. - */ -@@ -1950,6 +1963,10 @@ - goto no_route; - } - free_res = 1; -+ if (lsrc && res.type != RTN_UNICAST && res.type != RTN_NAT) -+ goto e_inval; -+ fl.iif = dev->ifindex; -+ fl.fl4_src = saddr; - - RT_CACHE_STAT_INC(in_slow_tot); - -@@ -1974,7 +1991,7 @@ - if (res.type != RTN_UNICAST) - goto martian_destination; - -- err = ip_mkroute_input(skb, &res, &fl, in_dev, daddr, saddr, tos); -+ err = ip_mkroute_input(skb, &res, &fl, in_dev, daddr, saddr, tos, lsrc); - if (err == -ENOBUFS) - goto e_nobufs; - if (err == -EINVAL) -@@ -1989,6 +2006,8 @@ - brd_input: - if (skb->protocol != htons(ETH_P_IP)) - goto e_inval; -+ if (lsrc) -+ goto e_inval; - - if (ZERONET(saddr)) - spec_dst = inet_select_addr(dev, 0, RT_SCOPE_LINK); -@@ -2031,6 +2050,7 @@ - rth->u.dst.dev = &loopback_dev; - dev_hold(rth->u.dst.dev); - rth->idev = in_dev_get(rth->u.dst.dev); -+ rth->fl.fl4_gw = 0; - rth->rt_gateway = daddr; - rth->rt_spec_dst= spec_dst; - rth->u.dst.input= ip_local_deliver; -@@ -2080,8 +2100,9 @@ - goto e_inval; - } - --int ip_route_input(struct sk_buff *skb, u32 daddr, u32 saddr, -- u8 tos, struct net_device *dev) -+static inline int -+ip_route_input_cached(struct sk_buff *skb, u32 daddr, u32 saddr, -+ u8 tos, struct net_device *dev, u32 lsrc) - { - struct rtable * rth; - unsigned hash; -@@ -2096,6 +2117,7 @@ - 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 && -@@ -2144,7 +2166,19 @@ - rcu_read_unlock(); - return -EINVAL; - } -- return ip_route_input_slow(skb, daddr, saddr, tos, dev); -+ return ip_route_input_slow(skb, daddr, saddr, tos, dev, lsrc); -+} -+ -+int ip_route_input(struct sk_buff *skb, u32 daddr, u32 saddr, -+ u8 tos, struct net_device *dev) -+{ -+ return ip_route_input_cached(skb, daddr, saddr, tos, dev, 0); -+} -+ -+int ip_route_input_lookup(struct sk_buff *skb, u32 daddr, u32 saddr, -+ u8 tos, struct net_device *dev, u32 lsrc) -+{ -+ return ip_route_input_cached(skb, daddr, saddr, tos, dev, lsrc); - } - - static inline int __mkroute_output(struct rtable **result, -@@ -2223,6 +2257,7 @@ - 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 -@@ -2370,6 +2405,7 @@ - struct flowi fl = { .nl_u = { .ip4_u = - { .daddr = oldflp->fl4_dst, - .saddr = oldflp->fl4_src, -+ .gw = oldflp->fl4_gw, - .tos = tos & IPTOS_RT_MASK, - .scope = ((tos & RTO_ONLINK) ? - RT_SCOPE_LINK : -@@ -2475,6 +2511,7 @@ - dev_out = &loopback_dev; - dev_hold(dev_out); - fl.oif = loopback_dev.ifindex; -+ fl.fl4_gw = 0; - res.type = RTN_LOCAL; - flags |= RTCF_LOCAL; - goto make_route; -@@ -2482,7 +2519,7 @@ - - if (fib_lookup(&fl, &res)) { - res.fi = NULL; -- if (oldflp->oif) { -+ if (oldflp->oif && dev_out->flags & IFF_UP) { - /* Apparently, routing tables are wrong. Assume, - that the destination is on link. - -@@ -2522,6 +2559,7 @@ - dev_out = &loopback_dev; - dev_hold(dev_out); - fl.oif = dev_out->ifindex; -+ fl.fl4_gw = 0; - if (res.fi) - fib_info_put(res.fi); - res.fi = NULL; -@@ -2529,13 +2567,12 @@ - goto make_route; - } - -+ if (res.type == RTN_UNICAST) -+ fib_select_default(&fl, &res); - #ifdef CONFIG_IP_ROUTE_MULTIPATH -- if (res.fi->fib_nhs > 1 && fl.oif == 0) -+ if (res.fi->fib_nhs > 1) - fib_select_multipath(&fl, &res); -- else - #endif -- if (!res.prefixlen && res.type == RTN_UNICAST && !fl.oif) -- fib_select_default(&fl, &res); - - if (!fl.fl4_src) - fl.fl4_src = FIB_RES_PREFSRC(res); -@@ -2572,6 +2609,7 @@ - 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 -@@ -3211,3 +3249,4 @@ - EXPORT_SYMBOL(__ip_select_ident); - EXPORT_SYMBOL(ip_route_input); - EXPORT_SYMBOL(ip_route_output_key); -+EXPORT_SYMBOL(ip_route_input_lookup); |