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authorDavid Ahern <dsahern@gmail.com>2019-03-27 20:53:54 -0700
committerDavid S. Miller <davem@davemloft.net>2019-03-29 10:48:04 -0700
commit572bf4dd7186584991019a258285432f0d9a7cea (patch)
tree00c69200ea863916f594c926a66f6e65a3547e5c /net/ipv6
parent6d3d07b45c86f984424ccbad110ca500397fd18c (diff)
downloadlinux-572bf4dd7186584991019a258285432f0d9a7cea.tar.bz2
ipv6: Change rt6_add_nexthop and rt6_nexthop_info to take fib6_nh
rt6_add_nexthop and rt6_nexthop_info only need the fib6_info for the gateway flag and the nexthop weight, and the presence of a gateway is now per-nexthop. Update the signatures to take a fib6_nh and nexthop weight and better align with the ipv4 versions. Signed-off-by: David Ahern <dsahern@gmail.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/route.c39
1 files changed, 20 insertions, 19 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 66cbb44cd92e..681c7184e157 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4583,37 +4583,37 @@ static size_t rt6_nlmsg_size(struct fib6_info *rt)
+ nexthop_len;
}
-static int rt6_nexthop_info(struct sk_buff *skb, struct fib6_info *rt,
+static int rt6_nexthop_info(struct sk_buff *skb, const struct fib6_nh *fib6_nh,
unsigned int *flags, bool skip_oif)
{
- if (rt->fib6_nh.nh_flags & RTNH_F_DEAD)
+ if (fib6_nh->nh_flags & RTNH_F_DEAD)
*flags |= RTNH_F_DEAD;
- if (rt->fib6_nh.nh_flags & RTNH_F_LINKDOWN) {
+ if (fib6_nh->nh_flags & RTNH_F_LINKDOWN) {
*flags |= RTNH_F_LINKDOWN;
rcu_read_lock();
- if (ip6_ignore_linkdown(rt->fib6_nh.nh_dev))
+ if (ip6_ignore_linkdown(fib6_nh->nh_dev))
*flags |= RTNH_F_DEAD;
rcu_read_unlock();
}
- if (rt->fib6_nh.fib_nh_has_gw) {
- if (nla_put_in6_addr(skb, RTA_GATEWAY, &rt->fib6_nh.nh_gw) < 0)
+ if (fib6_nh->fib_nh_has_gw) {
+ if (nla_put_in6_addr(skb, RTA_GATEWAY, &fib6_nh->nh_gw) < 0)
goto nla_put_failure;
}
- *flags |= (rt->fib6_nh.nh_flags & RTNH_F_ONLINK);
- if (rt->fib6_nh.nh_flags & RTNH_F_OFFLOAD)
+ *flags |= (fib6_nh->nh_flags & RTNH_F_ONLINK);
+ if (fib6_nh->nh_flags & RTNH_F_OFFLOAD)
*flags |= RTNH_F_OFFLOAD;
/* not needed for multipath encoding b/c it has a rtnexthop struct */
- if (!skip_oif && rt->fib6_nh.nh_dev &&
- nla_put_u32(skb, RTA_OIF, rt->fib6_nh.nh_dev->ifindex))
+ if (!skip_oif && fib6_nh->nh_dev &&
+ nla_put_u32(skb, RTA_OIF, fib6_nh->nh_dev->ifindex))
goto nla_put_failure;
- if (rt->fib6_nh.nh_lwtstate &&
- lwtunnel_fill_encap(skb, rt->fib6_nh.nh_lwtstate) < 0)
+ if (fib6_nh->nh_lwtstate &&
+ lwtunnel_fill_encap(skb, fib6_nh->nh_lwtstate) < 0)
goto nla_put_failure;
return 0;
@@ -4623,9 +4623,9 @@ nla_put_failure:
}
/* add multipath next hop */
-static int rt6_add_nexthop(struct sk_buff *skb, struct fib6_info *rt)
+static int rt6_add_nexthop(struct sk_buff *skb, const struct fib6_nh *fib6_nh)
{
- const struct net_device *dev = rt->fib6_nh.nh_dev;
+ const struct net_device *dev = fib6_nh->nh_dev;
struct rtnexthop *rtnh;
unsigned int flags = 0;
@@ -4633,10 +4633,10 @@ static int rt6_add_nexthop(struct sk_buff *skb, struct fib6_info *rt)
if (!rtnh)
goto nla_put_failure;
- rtnh->rtnh_hops = rt->fib6_nh.nh_weight - 1;
+ rtnh->rtnh_hops = fib6_nh->nh_weight - 1;
rtnh->rtnh_ifindex = dev ? dev->ifindex : 0;
- if (rt6_nexthop_info(skb, rt, &flags, true) < 0)
+ if (rt6_nexthop_info(skb, fib6_nh, &flags, true) < 0)
goto nla_put_failure;
rtnh->rtnh_flags = flags;
@@ -4766,18 +4766,19 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
if (!mp)
goto nla_put_failure;
- if (rt6_add_nexthop(skb, rt) < 0)
+ if (rt6_add_nexthop(skb, &rt->fib6_nh) < 0)
goto nla_put_failure;
list_for_each_entry_safe(sibling, next_sibling,
&rt->fib6_siblings, fib6_siblings) {
- if (rt6_add_nexthop(skb, sibling) < 0)
+ if (rt6_add_nexthop(skb, &sibling->fib6_nh) < 0)
goto nla_put_failure;
}
nla_nest_end(skb, mp);
} else {
- if (rt6_nexthop_info(skb, rt, &rtm->rtm_flags, false) < 0)
+ if (rt6_nexthop_info(skb, &rt->fib6_nh, &rtm->rtm_flags,
+ false) < 0)
goto nla_put_failure;
}