diff options
author | David Ahern <dsahern@gmail.com> | 2018-05-09 20:34:23 -0700 |
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committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-05-11 00:10:56 +0200 |
commit | 138118ec96cbfc303c1d7cc05fbb2caf8382c95b (patch) | |
tree | f047e24bb0444ca0f79fdbc802317f34e13533b6 /include/net/ip6_fib.h | |
parent | cc065a9eb96f7f2a29a04ca49331a9ccb1cfcfa2 (diff) | |
download | linux-138118ec96cbfc303c1d7cc05fbb2caf8382c95b.tar.bz2 |
net/ipv6: Add fib6_lookup
Add IPv6 equivalent to fib_lookup. Does a fib lookup, including rules,
but returns a FIB entry, fib6_info, rather than a dst based rt6_info.
fib6_lookup is any where from 140% (MULTIPLE_TABLES config disabled)
to 60% faster than any of the dst based lookup methods (without custom
rules) and 25% faster with custom rules (e.g., l3mdev rule).
Since the lookup function has a completely different signature,
fib6_rule_action is split into 2 paths: the existing one is
renamed __fib6_rule_action and a new one for the fib6_info path
is added. fib6_rule_action decides which to call based on the
lookup_ptr. If it is fib6_table_lookup then the new path is taken.
Caller must hold rcu lock as no reference is taken on the returned
fib entry.
Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include/net/ip6_fib.h')
-rw-r--r-- | include/net/ip6_fib.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index c70705f2647a..cc70f6da8462 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -376,6 +376,12 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6, const struct sk_buff *skb, int flags, pol_lookup_t lookup); +/* called with rcu lock held; can return error pointer + * caller needs to select path + */ +struct fib6_info *fib6_lookup(struct net *net, int oif, struct flowi6 *fl6, + int flags); + /* called with rcu lock held; caller needs to select path */ struct fib6_info *fib6_table_lookup(struct net *net, struct fib6_table *table, int oif, struct flowi6 *fl6, int strict); |