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| author | David Ahern <dsahern@gmail.com> | 2018-03-02 08:32:17 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-04 13:04:22 -0500 |
| commit | b75cc8f90f07342467b3bd51dbc0054f185032c9 (patch) | |
| tree | c60c0be94f8d29690af3a997d6672724192f2634 /net/ipv6/fib6_rules.c | |
| parent | 3192dac64c73d8c0eb4274a3da23d829fb5177af (diff) | |
| download | linux-b75cc8f90f07342467b3bd51dbc0054f185032c9.tar.gz linux-b75cc8f90f07342467b3bd51dbc0054f185032c9.tar.bz2 linux-b75cc8f90f07342467b3bd51dbc0054f185032c9.zip | |
net/ipv6: Pass skb to route lookup
IPv6 does path selection for multipath routes deep in the lookup
functions. The next patch adds L4 hash option and needs the skb
for the forward path. To get the skb to the relevant FIB lookup
functions it needs to go through the fib rules layer, so add a
lookup_data argument to the fib_lookup_arg struct.
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/fib6_rules.c')
| -rw-r--r-- | net/ipv6/fib6_rules.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index 04e5f523e50f..00ef9467f3c0 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -61,11 +61,13 @@ unsigned int fib6_rules_seq_read(struct net *net) } struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6, + const struct sk_buff *skb, int flags, pol_lookup_t lookup) { if (net->ipv6.fib6_has_custom_rules) { struct fib_lookup_arg arg = { .lookup_ptr = lookup, + .lookup_data = skb, .flags = FIB_LOOKUP_NOREF, }; @@ -80,11 +82,11 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6, } else { struct rt6_info *rt; - rt = lookup(net, net->ipv6.fib6_local_tbl, fl6, flags); + rt = lookup(net, net->ipv6.fib6_local_tbl, fl6, skb, flags); if (rt != net->ipv6.ip6_null_entry && rt->dst.error != -EAGAIN) return &rt->dst; ip6_rt_put(rt); - rt = lookup(net, net->ipv6.fib6_main_tbl, fl6, flags); + rt = lookup(net, net->ipv6.fib6_main_tbl, fl6, skb, flags); if (rt->dst.error != -EAGAIN) return &rt->dst; ip6_rt_put(rt); @@ -130,7 +132,7 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp, goto out; } - rt = lookup(net, table, flp6, flags); + rt = lookup(net, table, flp6, arg->lookup_data, flags); if (rt != net->ipv6.ip6_null_entry) { struct fib6_rule *r = (struct fib6_rule *)rule; |