Listen to RTNLGRP_IPV6_IFINFO to get IPv6 address change
notification.
Signed-off-by: Pravin B Shelar <pshe...@ovn.org>
---
lib/netdev-linux.c | 15 ++++++++++++---
lib/rtnetlink.c | 6 ++++--
2 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/lib/netdev-linux.c b/lib/netdev-linux.c
index d58c1b1..570677e 100644
--- a/lib/netdev-linux.c
+++ b/lib/netdev-linux.c
@@ -595,8 +595,8 @@ netdev_linux_notify_sock(void)
{
static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
static struct nl_sock *sock;
- unsigned int mcgroups[3] = {RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR,
- RTNLGRP_IPV6_IFADDR};
+ unsigned int mcgroups[] = {RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR,
+ RTNLGRP_IPV6_IFADDR, RTNLGRP_IPV6_IFINFO};
if (ovsthread_once_start(&once)) {
int error;
@@ -652,7 +652,16 @@ netdev_linux_run(void)
struct rtnetlink_change change;
if (rtnetlink_parse(&buf, &change)) {
- struct netdev *netdev_ = netdev_from_name(change.ifname);
+ struct netdev *netdev_ = NULL;
+ char dev_name[IFNAMSIZ];
+
+ if (!change.ifname) {
+ change.ifname = if_indextoname(change.if_index, dev_name);
+ }
+
+ if (change.ifname) {
+ netdev_ = netdev_from_name(change.ifname);
+ }
if (netdev_ && is_netdev_linux_class(netdev_->netdev_class)) {
struct netdev_linux *netdev = netdev_linux_cast(netdev_);
diff --git a/lib/rtnetlink.c b/lib/rtnetlink.c
index d0c1ee7..d12467e 100644
--- a/lib/rtnetlink.c
+++ b/lib/rtnetlink.c
@@ -100,7 +100,7 @@ rtnetlink_parse(struct ofpbuf *buf, struct rtnetlink_change
*change)
* There are *many* more fields in these messages, but currently we
* only care about these fields. */
static const struct nl_policy policy[] = {
- [IFA_LABEL] = { .type = NL_A_STRING, .optional = false },
+ [IFA_LABEL] = { .type = NL_A_STRING, .optional = true },
};
struct nlattr *attrs[ARRAY_SIZE(policy)];
@@ -115,7 +115,9 @@ rtnetlink_parse(struct ofpbuf *buf, struct rtnetlink_change
*change)
change->nlmsg_type = nlmsg->nlmsg_type;
change->if_index = ifaddr->ifa_index;
- change->ifname = nl_attr_get_string(attrs[IFA_LABEL]);
+ change->ifname = (attrs[IFA_LABEL]
+ ? nl_attr_get_string(attrs[IFA_LABEL])
+ : NULL);
}
}
--
2.5.0
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