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Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.22/201-multiple_default_gateways.patch')
-rw-r--r--target/linux/generic-2.6/patches-2.6.22/201-multiple_default_gateways.patch336
1 files changed, 0 insertions, 336 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.22/201-multiple_default_gateways.patch b/target/linux/generic-2.6/patches-2.6.22/201-multiple_default_gateways.patch
deleted file mode 100644
index 47d53b7..0000000
--- a/target/linux/generic-2.6/patches-2.6.22/201-multiple_default_gateways.patch
+++ /dev/null
@@ -1,336 +0,0 @@
---- a/include/linux/rtnetlink.h
-+++ b/include/linux/rtnetlink.h
-@@ -293,6 +293,8 @@
- #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 */
-
---- a/include/net/flow.h
-+++ b/include/net/flow.h
-@@ -19,6 +19,8 @@
- struct {
- __be32 daddr;
- __be32 saddr;
-+ __u32 lsrc;
-+ __u32 gw;
- __u8 tos;
- __u8 scope;
- } ip4_u;
-@@ -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_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
-
---- a/net/ipv4/route.c
-+++ b/net/ipv4/route.c
-@@ -1208,6 +1208,7 @@
-
- /* 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);
-@@ -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;
-@@ -1653,6 +1655,7 @@
- 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;
-@@ -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)
- {
-
-@@ -1751,6 +1754,7 @@
- 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;
-@@ -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;
-@@ -1795,6 +1800,7 @@
- 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;
-@@ -1816,19 +1822,21 @@
- struct fib_result* res,
- const struct flowi *fl,
- struct in_device *in_dev,
-- __be32 daddr, __be32 saddr, u32 tos)
-+ __be32 daddr, __be32 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;
-
-@@ -1841,7 +1849,8 @@
- struct fib_result* res,
- const struct flowi *fl,
- struct in_device *in_dev,
-- __be32 daddr, __be32 saddr, u32 tos)
-+ __be32 daddr, __be32 saddr, u32 tos,
-+ u32 lsrc)
- {
- #ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
- struct rtable* rth = NULL, *rtres;
-@@ -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++) {
-@@ -1869,7 +1878,7 @@
-
- /* create a routing cache entry */
- err = __mkroute_input(skb, res, in_dev, daddr, saddr, tos,
-- &rth);
-+ 0, &rth);
- if (err)
- return err;
-
-@@ -1889,7 +1898,7 @@
- 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 */
- }
-
-@@ -1905,18 +1914,18 @@
- */
-
- static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 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,
- } },
- .mark = skb->mark,
-- .iif = dev->ifindex };
-+ .iif = lsrc? loopback_dev.ifindex : dev->ifindex };
- unsigned flags = 0;
- u32 itag = 0;
- struct rtable * rth;
-@@ -1949,6 +1958,12 @@
- 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.
- */
-@@ -1958,6 +1973,10 @@
- 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);
-
-@@ -1982,7 +2001,7 @@
- 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)
-@@ -1997,6 +2016,8 @@
- 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);
-@@ -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);
-+ rth->fl.fl4_gw = 0;
- rth->rt_gateway = daddr;
- rth->rt_spec_dst= spec_dst;
- rth->u.dst.input= ip_local_deliver;
-@@ -2086,8 +2108,9 @@
- goto e_inval;
- }
-
--int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
-- u8 tos, struct net_device *dev)
-+static inline int
-+ip_route_input_cached(struct sk_buff *skb, __be32 daddr, __be32 saddr,
-+ u8 tos, struct net_device *dev, u32 lsrc)
- {
- struct rtable * rth;
- unsigned hash;
-@@ -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 &&
- rth->fl.mark == skb->mark &&
- rth->fl.fl4_tos == tos) {
-@@ -2148,7 +2172,19 @@
- 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,
-@@ -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;
- 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,
-+ .gw = oldflp->fl4_gw,
- .tos = tos & IPTOS_RT_MASK,
- .scope = ((tos & RTO_ONLINK) ?
- RT_SCOPE_LINK :
-@@ -2470,6 +2508,7 @@
- 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;
-@@ -2477,7 +2516,7 @@
-
- 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.
-
-@@ -2517,6 +2556,7 @@
- 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;
-@@ -2524,13 +2564,12 @@
- 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);
-@@ -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 &&
- rth->fl.mark == flp->mark &&
- !((rth->fl.fl4_tos ^ flp->fl4_tos) &
- (IPTOS_RT_MASK | RTO_ONLINK))) {
-@@ -3267,3 +3307,4 @@
- EXPORT_SYMBOL(__ip_select_ident);
- EXPORT_SYMBOL(ip_route_input);
- EXPORT_SYMBOL(ip_route_output_key);
-+EXPORT_SYMBOL(ip_route_input_lookup);