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Upgrade to 4.4.50-rt62
[kvmfornfv.git]
/
kernel
/
net
/
ipv4
/
fib_semantics.c
diff --git
a/kernel/net/ipv4/fib_semantics.c
b/kernel/net/ipv4/fib_semantics.c
index
d97268e
..
67d44aa
100644
(file)
--- a/
kernel/net/ipv4/fib_semantics.c
+++ b/
kernel/net/ipv4/fib_semantics.c
@@
-479,6
+479,9
@@
static int fib_get_nhs(struct fib_info *fi, struct rtnexthop *rtnh,
if (!rtnh_ok(rtnh, remaining))
return -EINVAL;
if (!rtnh_ok(rtnh, remaining))
return -EINVAL;
+ if (rtnh->rtnh_flags & (RTNH_F_DEAD | RTNH_F_LINKDOWN))
+ return -EINVAL;
+
nexthop_nh->nh_flags =
(cfg->fc_flags & ~0xFF) | rtnh->rtnh_flags;
nexthop_nh->nh_oif = rtnh->rtnh_ifindex;
nexthop_nh->nh_flags =
(cfg->fc_flags & ~0xFF) | rtnh->rtnh_flags;
nexthop_nh->nh_oif = rtnh->rtnh_ifindex;
@@
-975,6
+978,8
@@
fib_convert_metrics(struct fib_info *fi, const struct fib_config *cfg)
val = 65535 - 40;
if (type == RTAX_MTU && val > 65535 - 15)
val = 65535 - 15;
val = 65535 - 40;
if (type == RTAX_MTU && val > 65535 - 15)
val = 65535 - 15;
+ if (type == RTAX_HOPLIMIT && val > 255)
+ val = 255;
if (type == RTAX_FEATURES && (val & ~RTAX_FEATURE_MASK))
return -EINVAL;
fi->fib_metrics[type - 1] = val;
if (type == RTAX_FEATURES && (val & ~RTAX_FEATURE_MASK))
return -EINVAL;
fi->fib_metrics[type - 1] = val;
@@
-1001,6
+1006,9
@@
struct fib_info *fib_create_info(struct fib_config *cfg)
if (fib_props[cfg->fc_type].scope > cfg->fc_scope)
goto err_inval;
if (fib_props[cfg->fc_type].scope > cfg->fc_scope)
goto err_inval;
+ if (cfg->fc_flags & (RTNH_F_DEAD | RTNH_F_LINKDOWN))
+ goto err_inval;
+
#ifdef CONFIG_IP_ROUTE_MULTIPATH
if (cfg->fc_mp) {
nhs = fib_count_nexthops(cfg->fc_mp, cfg->fc_mp_len);
#ifdef CONFIG_IP_ROUTE_MULTIPATH
if (cfg->fc_mp) {
nhs = fib_count_nexthops(cfg->fc_mp, cfg->fc_mp_len);
@@
-1269,8
+1277,9
@@
int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event,
nla_put_u32(skb, RTA_FLOW, fi->fib_nh[0].nh_tclassid))
goto nla_put_failure;
#endif
nla_put_u32(skb, RTA_FLOW, fi->fib_nh[0].nh_tclassid))
goto nla_put_failure;
#endif
- if (fi->fib_nh->nh_lwtstate)
- lwtunnel_fill_encap(skb, fi->fib_nh->nh_lwtstate);
+ if (fi->fib_nh->nh_lwtstate &&
+ lwtunnel_fill_encap(skb, fi->fib_nh->nh_lwtstate) < 0)
+ goto nla_put_failure;
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH
if (fi->fib_nhs > 1) {
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH
if (fi->fib_nhs > 1) {
@@
-1306,8
+1315,10
@@
int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event,
nla_put_u32(skb, RTA_FLOW, nh->nh_tclassid))
goto nla_put_failure;
#endif
nla_put_u32(skb, RTA_FLOW, nh->nh_tclassid))
goto nla_put_failure;
#endif
- if (nh->nh_lwtstate)
- lwtunnel_fill_encap(skb, nh->nh_lwtstate);
+ if (nh->nh_lwtstate &&
+ lwtunnel_fill_encap(skb, nh->nh_lwtstate) < 0)
+ goto nla_put_failure;
+
/* length of rtnetlink header + attributes */
rtnh->rtnh_len = nlmsg_get_pos(skb) - (void *) rtnh;
} endfor_nexthops(fi);
/* length of rtnetlink header + attributes */
rtnh->rtnh_len = nlmsg_get_pos(skb) - (void *) rtnh;
} endfor_nexthops(fi);
@@
-1580,8
+1591,13
@@
void fib_select_multipath(struct fib_result *res, int hash)
void fib_select_path(struct net *net, struct fib_result *res,
struct flowi4 *fl4, int mp_hash)
{
void fib_select_path(struct net *net, struct fib_result *res,
struct flowi4 *fl4, int mp_hash)
{
+ bool oif_check;
+
+ oif_check = (fl4->flowi4_oif == 0 ||
+ fl4->flowi4_flags & FLOWI_FLAG_SKIP_NH_OIF);
+
#ifdef CONFIG_IP_ROUTE_MULTIPATH
#ifdef CONFIG_IP_ROUTE_MULTIPATH
- if (res->fi->fib_nhs > 1 &&
fl4->flowi4_oif == 0
) {
+ if (res->fi->fib_nhs > 1 &&
oif_check
) {
if (mp_hash < 0)
mp_hash = get_hash_from_flowi4(fl4) >> 1;
if (mp_hash < 0)
mp_hash = get_hash_from_flowi4(fl4) >> 1;
@@
-1591,7
+1607,7
@@
void fib_select_path(struct net *net, struct fib_result *res,
#endif
if (!res->prefixlen &&
res->table->tb_num_default > 1 &&
#endif
if (!res->prefixlen &&
res->table->tb_num_default > 1 &&
- res->type == RTN_UNICAST &&
!fl4->flowi4_oif
)
+ res->type == RTN_UNICAST &&
oif_check
)
fib_select_default(fl4, res);
if (!fl4->saddr)
fib_select_default(fl4, res);
if (!fl4->saddr)