diff options
| -rw-r--r-- | include/net/l3mdev.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/net/l3mdev.h b/include/net/l3mdev.h index 44a19a1..774d85b 100644 --- a/include/net/l3mdev.h +++ b/include/net/l3mdev.h @@ -19,14 +19,22 @@ * @l3mdev_get_rtable: Get cached IPv4 rtable (dst_entry) for device * * @l3mdev_get_saddr: Get source address for a flow + * + * @l3mdev_get_rt6_dst: Get cached IPv6 rt6_info (dst_entry) for device */ struct l3mdev_ops { u32 (*l3mdev_fib_table)(const struct net_device *dev); + + /* IPv4 ops */ struct rtable * (*l3mdev_get_rtable)(const struct net_device *dev, const struct flowi4 *fl4); void (*l3mdev_get_saddr)(struct net_device *dev, struct flowi4 *fl4); + + /* IPv6 ops */ + struct dst_entry * (*l3mdev_get_rt6_dst)(const struct net_device *dev, + const struct flowi6 *fl6); }; #ifdef CONFIG_NET_L3_MASTER_DEV @@ -123,6 +131,31 @@ static inline void 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) +{ + 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; +} + #else static inline int l3mdev_master_ifindex_rcu(struct net_device *dev) @@ -171,6 +204,19 @@ static inline void 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) +{ + return NULL; +} +static inline +struct dst_entry *l3mdev_rt6_dst_by_oif(struct net *net, + const struct flowi6 *fl6) +{ + return NULL; +} #endif #endif /* _NET_L3MDEV_H_ */ |
