diff options
| -rw-r--r-- | include/net/l3mdev.h | 56 | ||||
| -rw-r--r-- | net/ipv6/route.c | 2 | ||||
| -rw-r--r-- | net/l3mdev/l3mdev.c | 54 |
3 files changed, 58 insertions, 54 deletions
diff --git a/include/net/l3mdev.h b/include/net/l3mdev.h index c43a9c73de5e..78872bd1dc2c 100644 --- a/include/net/l3mdev.h +++ b/include/net/l3mdev.h @@ -130,52 +130,9 @@ static inline bool netif_index_is_l3_master(struct net *net, int ifindex) return rc; } -static inline 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; -} +int l3mdev_get_saddr(struct net *net, int ifindex, struct flowi4 *fl4); -static inline struct dst_entry *l3mdev_get_rt6_dst(const struct net_device *dev, - const struct flowi6 *fl6) -{ - if (netif_is_l3_master(dev) && dev->l3mdev_ops->l3mdev_get_rt6_dst) - return dev->l3mdev_ops->l3mdev_get_rt6_dst(dev, fl6); - - return NULL; -} - -static inline -struct dst_entry *l3mdev_rt6_dst_by_oif(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) { - dst = l3mdev_get_rt6_dst(dev, fl6); - dev_put(dev); - } - - return dst; -} +struct dst_entry *l3mdev_get_rt6_dst(struct net *net, const struct flowi6 *fl6); #else @@ -233,14 +190,7 @@ static inline int l3mdev_get_saddr(struct net *net, int ifindex, } static inline -struct dst_entry *l3mdev_get_rt6_dst(const struct net_device *dev, - const struct flowi6 *fl6) -{ - return NULL; -} -static inline -struct dst_entry *l3mdev_rt6_dst_by_oif(struct net *net, - const struct flowi6 *fl6) +struct dst_entry *l3mdev_get_rt6_dst(struct net *net, const struct flowi6 *fl6) { return NULL; } diff --git a/net/ipv6/route.c b/net/ipv6/route.c index af46e19205f5..c42fa1deb152 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1190,7 +1190,7 @@ struct dst_entry *ip6_route_output_flags(struct net *net, const struct sock *sk, struct dst_entry *dst; bool any_src; - dst = l3mdev_rt6_dst_by_oif(net, fl6); + dst = l3mdev_get_rt6_dst(net, fl6); if (dst) return dst; 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); |