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net: Add extack to fib_notifier_info

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Add extack to fib_notifier_info and plumb through stack to
call_fib_rule_notifiers, call_fib_entry_notifiers and
call_fib6_entry_notifiers. This allows notifer handlers to
return messages to user.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2017-10-27 17:37:13 -07:00
committed by David S. Miller
parent 4f6265d485
commit 6c31e5a91f
4 changed files with 24 additions and 14 deletions
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9
net/core/fib_rules.c
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@@ -314,10 +314,12 @@ static int call_fib_rule_notifier(struct notifier_block *nb, struct net *net,
static int call_fib_rule_notifiers(struct net *net,
enum fib_event_type event_type,
struct fib_rule *rule,
struct fib_rules_ops *ops)
struct fib_rules_ops *ops,
struct netlink_ext_ack *extack)
{
struct fib_rule_notifier_info info = {
.info.family = ops->family,
.info.extack = extack,
.rule = rule,
};
@@ -609,7 +611,7 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
if (rule->tun_id)
ip_tunnel_need_metadata();
call_fib_rule_notifiers(net, FIB_EVENT_RULE_ADD, rule, ops);
call_fib_rule_notifiers(net, FIB_EVENT_RULE_ADD, rule, ops, extack);
notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).portid);
flush_route_cache(ops);
rules_ops_put(ops);
@@ -749,7 +751,8 @@ int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr *nlh,
}
}
call_fib_rule_notifiers(net, FIB_EVENT_RULE_DEL, rule, ops);
call_fib_rule_notifiers(net, FIB_EVENT_RULE_DEL, rule, ops,
NULL);
notify_rule_change(RTM_DELRULE, rule, ops, nlh,
NETLINK_CB(skb).portid);
fib_rule_put(rule);