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authorSteven Barth <steven@midlink.org>2013-10-01 18:01:16 +0200
committerSteven Barth <steven@midlink.org>2013-10-01 18:01:16 +0200
commita4fd42af1acf5019ad8ad198bd466e030ef06bd5 (patch)
tree3685da9d64483ce31341a1d0cfb2c176af8b192a
parent6f34c02e517689faa5b04809b448891228a44355 (diff)
Don't delete / readd IP addresses when only their lifetime has changed
-rw-r--r--interface-ip.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/interface-ip.c b/interface-ip.c
index 29db745..185a9a7 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -426,6 +426,7 @@ interface_update_proto_addr(struct vlist_tree *tree,
struct interface *iface;
struct device *dev;
struct device_addr *a_new = NULL, *a_old = NULL;
+ bool replace = false;
bool keep = false;
bool v6 = false;
@@ -453,11 +454,13 @@ interface_update_proto_addr(struct vlist_tree *tree,
if (a_new && a_old) {
keep = true;
- if (a_old->flags != a_new->flags ||
- a_old->valid_until != a_new->valid_until ||
- a_old->preferred_until != a_new->preferred_until)
+ if (a_old->flags != a_new->flags)
keep = false;
+ if (a_old->valid_until != a_new->valid_until ||
+ a_old->preferred_until != a_new->preferred_until)
+ replace = true;
+
if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET4 &&
a_new->broadcast != a_old->broadcast)
keep = false;
@@ -486,16 +489,18 @@ interface_update_proto_addr(struct vlist_tree *tree,
if (node_new) {
a_new->enabled = true;
- if (!(a_new->flags & DEVADDR_EXTERNAL) && !keep) {
+ if (!(a_new->flags & DEVADDR_EXTERNAL) && (!keep || replace)) {
system_add_address(dev, a_new);
- if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET6)
- v6 = true;
+ if (!keep) {
+ if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET6)
+ v6 = true;
- set_ip_source_policy(true, v6, IPRULE_PRIORITY_ADDR, &a_new->addr,
- (v6) ? 128 : 32, iface, NULL, NULL);
- set_ip_source_policy(true, v6, IPRULE_PRIORITY_NW, &a_new->addr,
- a_new->mask, iface, NULL, NULL);
+ set_ip_source_policy(true, v6, IPRULE_PRIORITY_ADDR, &a_new->addr,
+ (v6) ? 128 : 32, iface, NULL, NULL);
+ set_ip_source_policy(true, v6, IPRULE_PRIORITY_NW, &a_new->addr,
+ a_new->mask, iface, NULL, NULL);
+ }
if ((a_new->flags & DEVADDR_OFFLINK) || iface->metric)
interface_handle_subnet_route(iface, a_new, true);