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| author | David S. Miller <davem@davemloft.net> | 2017-05-26 14:12:52 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-26 14:12:52 -0400 |
| commit | 9226976f9bad60e3eeb36a9d69341a584c87a0c3 (patch) | |
| tree | 314fbe2e34e7092962a44a6af94b70b1afa0b3bc /include | |
| parent | 5dafc87f40d7b7f2b2a3b3153399143c333ec785 (diff) | |
| parent | 18c3a61c4264cd2f7d6f1bde4b1bf036d5b0a2bc (diff) | |
Merge branch 'RTM_GETROUTE--return-fib-result'
Roopa Prabhu says:
====================
net: extend RTM_GETROUTE to return fib result
This series adds a new RTM_F_FIB_MATCH flag to return matched fib result
with RTM_GETROUTE. This is useful for applications and protocols in
userspace wanting to query the selected route.
examples (with patched iproute2):
ipv4:
----
$ip route show
default via 192.168.0.2 dev eth0
10.0.14.0/24
nexthop via 172.16.0.3 dev dummy0 weight 1
nexthop via 172.16.1.3 dev dummy1 weight 1
$ip route get 10.0.14.2
10.0.14.2 via 172.16.1.3 dev dummy1 src 172.16.1.1
cache
$ip route get fibmatch 10.0.14.2
10.0.14.0/24
nexthop via 172.16.0.3 dev dummy0 weight 1
nexthop via 172.16.1.3 dev dummy1 weight 1
ipv6:
----
$ip -6 route show
2001:db9:100::/120 metric 1024
nexthop via 2001:db8:2::2 dev dummy0 weight 1
nexthop via 2001:db8:12::2 dev dummy1 weight 1
$ip -6 route get 2001:db9:100::1
2001:db9:100::1 from :: via 2001:db8:12::2 dev dummy1 src 2001:db8:12::1 metric 1024 pref medium
$ip -6 route get fibmatch 2001:db9:100::1
2001:db9:100::/120 metric 1024
nexthop via 2001:db8:12::2 dev dummy1 weight 1
nexthop via 2001:db8:2::2 dev dummy0 weight 1
v2:
- pick up new forward port of patch-01 from david
- inet6_rtm_getroute: use container_of for rt6_info to
dst conversion
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip_fib.h | 1 | ||||
| -rw-r--r-- | include/net/route.h | 12 | ||||
| -rw-r--r-- | include/uapi/linux/rtnetlink.h | 1 |
3 files changed, 11 insertions, 3 deletions
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index 42e8b8f55f7c..25f5c516afd1 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -136,6 +136,7 @@ struct fib_rule; struct fib_table; struct fib_result { + __be32 prefix; unsigned char prefixlen; unsigned char nh_sel; unsigned char type; diff --git a/include/net/route.h b/include/net/route.h index 2cc0e14c6359..08e689f23365 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -113,13 +113,16 @@ struct in_device; int ip_rt_init(void); void rt_cache_flush(struct net *net); void rt_flush_dev(struct net_device *dev); -struct rtable *__ip_route_output_key_hash(struct net *net, struct flowi4 *flp, - const struct sk_buff *skb); +struct rtable *ip_route_output_key_hash(struct net *net, struct flowi4 *flp, + const struct sk_buff *skb); +struct rtable *ip_route_output_key_hash_rcu(struct net *net, struct flowi4 *flp, + struct fib_result *res, + const struct sk_buff *skb); static inline struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *flp) { - return __ip_route_output_key_hash(net, flp, NULL); + return ip_route_output_key_hash(net, flp, NULL); } struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp, @@ -175,6 +178,9 @@ static inline struct rtable *ip_route_output_gre(struct net *net, struct flowi4 int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src, u8 tos, struct net_device *devin); +int ip_route_input_rcu(struct sk_buff *skb, __be32 dst, __be32 src, + u8 tos, struct net_device *devin, + struct fib_result *res); static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src, u8 tos, struct net_device *devin) diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h index 6487b21b2c1e..564790e854f7 100644 --- a/include/uapi/linux/rtnetlink.h +++ b/include/uapi/linux/rtnetlink.h @@ -278,6 +278,7 @@ enum rt_scope_t { #define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */ #define RTM_F_PREFIX 0x800 /* Prefix addresses */ #define RTM_F_LOOKUP_TABLE 0x1000 /* set rtm_table to FIB lookup result */ +#define RTM_F_FIB_MATCH 0x2000 /* return full fib lookup match */ /* Reserved table identifiers */ |