diff options
| author | David Ahern <dsa@cumulusnetworks.com> | 2016-05-08 01:48:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-10 04:33:52 +0200 |
| commit | 4a65896f94fa82370041823837cd75aac1186b54 (patch) | |
| tree | 9443898f94aa86d35b0ab4e6369b6d4fe0f69361 /net/l3mdev | |
| parent | fjes: Fix unnecessary spinlock_irqsave (diff) | |
| download | linux-4a65896f94fa82370041823837cd75aac1186b54.tar.xz linux-4a65896f94fa82370041823837cd75aac1186b54.zip | |
net: l3mdev: Move get_saddr and rt6_dst
Move l3mdev_rt6_dst_by_oif and l3mdev_get_saddr to l3mdev.c. Collapse
l3mdev_get_rt6_dst into l3mdev_rt6_dst_by_oif since it is the only
user and keep the l3mdev_get_rt6_dst name for consistency with other
hooks.
A follow-on patch adds more code to these functions making them long
for inlined functions.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l3mdev')
| -rw-r--r-- | net/l3mdev/l3mdev.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/net/l3mdev/l3mdev.c b/net/l3mdev/l3mdev.c index e925037fa0df..898d01e0f87b 100644 --- a/net/l3mdev/l3mdev.c +++ b/net/l3mdev/l3mdev.c @@ -97,3 +97,57 @@ u32 l3mdev_fib_table_by_index(struct net *net, int ifindex) return tb_id; } EXPORT_SYMBOL_GPL(l3mdev_fib_table_by_index); + +/** + * l3mdev_get_rt6_dst - IPv6 route lookup based on flow. Returns + * cached route for L3 master device if relevant + * to flow + * @net: network namespace for device index lookup + * @fl6: IPv6 flow struct for lookup + */ + +struct dst_entry *l3mdev_get_rt6_dst(struct net *net, + const struct flowi6 *fl6) +{ + struct dst_entry *dst = NULL; + struct net_device *dev; + + dev = dev_get_by_index(net, fl6->flowi6_oif); + if (dev) { + if (netif_is_l3_master(dev) && + dev->l3mdev_ops->l3mdev_get_rt6_dst) + dst = dev->l3mdev_ops->l3mdev_get_rt6_dst(dev, fl6); + dev_put(dev); + } + + return dst; +} +EXPORT_SYMBOL_GPL(l3mdev_get_rt6_dst); + +/** + * l3mdev_get_saddr - get source address for a flow based on an interface + * enslaved to an L3 master device + * @net: network namespace for device index lookup + * @ifindex: Interface index + * @fl4: IPv4 flow struct + */ + +int l3mdev_get_saddr(struct net *net, int ifindex, struct flowi4 *fl4) +{ + struct net_device *dev; + int rc = 0; + + if (ifindex) { + rcu_read_lock(); + + dev = dev_get_by_index_rcu(net, ifindex); + if (dev && netif_is_l3_master(dev) && + dev->l3mdev_ops->l3mdev_get_saddr) + rc = dev->l3mdev_ops->l3mdev_get_saddr(dev, fl4); + + rcu_read_unlock(); + } + + return rc; +} +EXPORT_SYMBOL_GPL(l3mdev_get_saddr); |