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authorDavid Ahern <dsahern@gmail.com>2018-10-15 18:56:42 -0700
committerDavid S. Miller <davem@davemloft.net>2018-10-16 00:13:12 -0700
commit4724676d551c0961659b1da3fb4b5928169fb184 (patch)
treeec0189bb48ecef31408ac12c3fcb5f506ffba5bf /include
parent22e6c58b8c2843337ec4e8464b1ce6e869ca5bf4 (diff)
downloadlinux-4724676d551c0961659b1da3fb4b5928169fb184.tar.bz2
net: Add struct for fib dump filter
Add struct fib_dump_filter for options on limiting which routes are returned in a dump request. The current list is table id, protocol, route type, rtm_flags and nexthop device index. struct net is needed to lookup the net_device from the index. Declare the filter for each route dump handler and plumb the new arguments from dump handlers to ip_valid_fib_dump_req. Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/ip6_route.h1
-rw-r--r--include/net/ip_fib.h13
2 files changed, 13 insertions, 1 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index cef186dbd2ce..7ab119936e69 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -174,6 +174,7 @@ struct rt6_rtnl_dump_arg {
struct sk_buff *skb;
struct netlink_callback *cb;
struct net *net;
+ struct fib_dump_filter filter;
};
int rt6_dump_route(struct fib6_info *f6i, void *p_arg);
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 852e4ebf2209..667013bf4266 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -222,6 +222,16 @@ struct fib_table {
unsigned long __data[0];
};
+struct fib_dump_filter {
+ u32 table_id;
+ /* filter_set is an optimization that an entry is set */
+ bool filter_set;
+ unsigned char protocol;
+ unsigned char rt_type;
+ unsigned int flags;
+ struct net_device *dev;
+};
+
int fib_table_lookup(struct fib_table *tb, const struct flowi4 *flp,
struct fib_result *res, int fib_flags);
int fib_table_insert(struct net *, struct fib_table *, struct fib_config *,
@@ -453,6 +463,7 @@ static inline void fib_proc_exit(struct net *net)
u32 ip_mtu_from_fib_result(struct fib_result *res, __be32 daddr);
-int ip_valid_fib_dump_req(const struct nlmsghdr *nlh,
+int ip_valid_fib_dump_req(struct net *net, const struct nlmsghdr *nlh,
+ struct fib_dump_filter *filter,
struct netlink_ext_ack *extack);
#endif /* _NET_FIB_H */