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ipv4: make sure RTO_ONLINK is saved in routing cache 

__mkroute_output fails to work with the original tos
and uses value with stripped RTO_ONLINK bit. Make sure we put
the original TOS bits into rt_key_tos because it used to match
cached route.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Julian Anastasov 2011-12-02 11:39:42 +00:00 committed by David S. Miller
parent 5983fe2b29
commit f61759e6b8
1 changed files with 6 additions and 6 deletions
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12
net/ipv4/route.c
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@ -112,7 +112,7 @@
#include <net/secure_seq.h>
#define RT_FL_TOS(oldflp4) \
((u32)(oldflp4->flowi4_tos & (IPTOS_RT_MASK | RTO_ONLINK)))
((oldflp4)->flowi4_tos & (IPTOS_RT_MASK | RTO_ONLINK))
#define IP_MAX_MTU 0xFFF0
@ -2441,11 +2441,11 @@ EXPORT_SYMBOL(ip_route_input_common);
static struct rtable *__mkroute_output(const struct fib_result *res,
const struct flowi4 *fl4,
__be32 orig_daddr, __be32 orig_saddr,
int orig_oif, struct net_device *dev_out,
int orig_oif, __u8 orig_rtos,
struct net_device *dev_out,
unsigned int flags)
{
struct fib_info *fi = res->fi;
u32 tos = RT_FL_TOS(fl4);
struct in_device *in_dev;
u16 type = res->type;
struct rtable *rth;
@ -2496,7 +2496,7 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
rth->rt_genid = rt_genid(dev_net(dev_out));
rth->rt_flags = flags;
rth->rt_type = type;
rth->rt_key_tos = tos;
rth->rt_key_tos = orig_rtos;
rth->rt_dst = fl4->daddr;
rth->rt_src = fl4->saddr;
rth->rt_route_iif = 0;
@ -2546,7 +2546,7 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
static struct rtable *ip_route_output_slow(struct net *net, struct flowi4 *fl4)
{
struct net_device *dev_out = NULL;
u32 tos = RT_FL_TOS(fl4);
__u8 tos = RT_FL_TOS(fl4);
unsigned int flags = 0;
struct fib_result res;
struct rtable *rth;
@ -2722,7 +2722,7 @@ static struct rtable *ip_route_output_slow(struct net *net, struct flowi4 *fl4)
make_route:
rth = __mkroute_output(&res, fl4, orig_daddr, orig_saddr, orig_oif,
dev_out, flags);
tos, dev_out, flags);
if (!IS_ERR(rth)) {
unsigned int hash;