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net: vrf: Create FIB tables on link create 

Tables have to exist for VRFs to function. Ensure they exist
when VRF device is created.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
David Ahern 2016-05-04 21:46:12 -07:00 committed by David S. Miller
parent f37bd0cced
commit b3b4663c97
3 changed files with 13 additions and 2 deletions
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13
drivers/net/vrf.c
View File

@ -364,17 +364,23 @@ static int vrf_rt6_create(struct net_device *dev)
{
struct net_vrf *vrf = netdev_priv(dev);
struct net *net = dev_net(dev);
struct fib6_table *rt6i_table;
struct rt6_info *rt6;
int rc = -ENOMEM;
rt6i_table = fib6_new_table(net, vrf->tb_id);
if (!rt6i_table)
goto out;
rt6 = ip6_dst_alloc(net, dev,
DST_HOST | DST_NOPOLICY | DST_NOXFRM | DST_NOCACHE);
if (!rt6)
goto out;
rt6->dst.output = vrf_output6;
rt6->rt6i_table = fib6_get_table(net, vrf->tb_id);
dst_hold(&rt6->dst);
rt6->rt6i_table = rt6i_table;
rt6->dst.output = vrf_output6;
vrf->rt6 = rt6;
rc = 0;
out:
@ -462,6 +468,9 @@ static struct rtable *vrf_rtable_create(struct net_device *dev)
struct net_vrf *vrf = netdev_priv(dev);
struct rtable *rth;
if (!fib_new_table(dev_net(dev), vrf->tb_id))
return NULL;
rth = rt_dst_alloc(dev, 0, RTN_UNICAST, 1, 1, 0);
if (rth) {
rth->dst.output = vrf_output;

1
net/ipv4/fib_frontend.c
View File

@ -110,6 +110,7 @@ struct fib_table *fib_new_table(struct net *net, u32 id)
hlist_add_head_rcu(&tb->tb_hlist, &net->ipv4.fib_table_hash[h]);
return tb;
}
EXPORT_SYMBOL_GPL(fib_new_table);
/* caller must hold either rtnl or rcu read lock */
struct fib_table *fib_get_table(struct net *net, u32 id)

1
net/ipv6/ip6_fib.c
View File

@ -240,6 +240,7 @@ struct fib6_table *fib6_new_table(struct net *net, u32 id)
return tb;
}
EXPORT_SYMBOL_GPL(fib6_new_table);
struct fib6_table *fib6_get_table(struct net *net, u32 id)
{