path: root/net/ipv4/fib_rules.c
diff options
authorIdo Schimmel <idosch@mellanox.com>2017-03-16 09:08:13 +0100
committerDavid S. Miller <davem@davemloft.net>2017-03-16 10:18:33 -0700
commit6a003a5ff29499a94373110202631743663569c6 (patch)
tree2a4695f68d2a3177951e24294637f610b2d16bf1 /net/ipv4/fib_rules.c
parentipv4: fib_rules: Check if rule is a default rule (diff)
ipv4: fib_rules: Add notifier info to FIB rules notifications
Whenever a FIB rule is added or removed, a notification is sent in the FIB notification chain. However, listeners don't have a way to tell which rule was added or removed. This is problematic as we would like to give listeners the ability to decide which action to execute based on the notified rule. Specifically, offloading drivers should be able to determine if they support the reflection of the notified FIB rule and flush their LPM tables in case they don't. Do that by adding a notifier info to these notifications and embed the common FIB rule struct in it. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_rules.c')
1 files changed, 8 insertions, 5 deletions
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index d531bc94b15e..310d24a2e097 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -186,11 +186,14 @@ static struct fib_table *fib_empty_table(struct net *net)
static int call_fib_rule_notifiers(struct net *net,
- enum fib_event_type event_type)
+ enum fib_event_type event_type,
+ struct fib_rule *rule)
- struct fib_notifier_info info;
+ struct fib_rule_notifier_info info = {
+ .rule = rule,
+ };
- return call_fib_notifiers(net, event_type, &info);
+ return call_fib_notifiers(net, event_type, &info.info);
void fib_rules_notify(struct net *net, struct notifier_block *nb)
@@ -257,7 +260,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
rule4->tos = frh->tos;
net->ipv4.fib_has_custom_rules = true;
- call_fib_rule_notifiers(net, FIB_EVENT_RULE_ADD);
+ call_fib_rule_notifiers(net, FIB_EVENT_RULE_ADD, rule);
err = 0;
@@ -279,7 +282,7 @@ static int fib4_rule_delete(struct fib_rule *rule)
net->ipv4.fib_has_custom_rules = true;
- call_fib_rule_notifiers(net, FIB_EVENT_RULE_DEL);
+ call_fib_rule_notifiers(net, FIB_EVENT_RULE_DEL, rule);
return err;