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-rw-r--r--device.c8
-rw-r--r--system-dummy.c5
-rw-r--r--system-linux.c9
-rw-r--r--system.h2
4 files changed, 17 insertions, 7 deletions
diff --git a/device.c b/device.c
index b29d73b..5d1dcac 100644
--- a/device.c
+++ b/device.c
@@ -62,6 +62,14 @@ void device_unlock(void)
static int set_device_state(struct device *dev, bool state)
{
+ if (state) {
+ /* Set ifindex for all devices being enabled so a valid */
+ /* ifindex is in place avoiding possible race conditions */
+ device_set_ifindex(dev, system_if_resolve(dev));
+ if (!dev->ifindex)
+ return -1;
+ }
+
if (dev->external)
return 0;
diff --git a/system-dummy.c b/system-dummy.c
index 8e420e1..7d54315 100644
--- a/system-dummy.c
+++ b/system-dummy.c
@@ -96,6 +96,11 @@ int system_if_check(struct device *dev)
return 0;
}
+int system_if_resolve(struct device *dev)
+{
+ return 0;
+}
+
struct device *
system_if_get_parent(struct device *dev)
{
diff --git a/system-linux.c b/system-linux.c
index 02574fc..6a6028c 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -316,11 +316,7 @@ static int cb_rtnl_event(struct nl_msg *msg, void *arg)
goto out;
struct device *dev = device_get(nla_data(nla[IFLA_IFNAME]), false);
- if (!dev)
- goto out;
-
- device_set_ifindex(dev, ifi->ifi_index);
- if (dev->type->keep_link_status)
+ if (!dev || dev->type->keep_link_status)
goto out;
if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev->ifname, buf, sizeof(buf)))
@@ -497,7 +493,7 @@ int system_bridge_delif(struct device *bridge, struct device *dev)
return system_bridge_if(bridge->ifname, dev, SIOCBRDELIF, NULL);
}
-static int system_if_resolve(struct device *dev)
+int system_if_resolve(struct device *dev)
{
struct ifreq ifr;
strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name));
@@ -1006,7 +1002,6 @@ int system_if_up(struct device *dev)
{
system_if_get_settings(dev, &dev->orig_settings);
system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
- device_set_ifindex(dev, system_if_resolve(dev));
return system_if_flags(dev->ifname, IFF_UP, 0);
}
diff --git a/system.h b/system.h
index b1215d1..3bf6f97 100644
--- a/system.h
+++ b/system.h
@@ -116,6 +116,8 @@ void system_if_clear_state(struct device *dev);
int system_if_up(struct device *dev);
int system_if_down(struct device *dev);
int system_if_check(struct device *dev);
+int system_if_resolve(struct device *dev);
+
int system_if_dump_info(struct device *dev, struct blob_buf *b);
int system_if_dump_stats(struct device *dev, struct blob_buf *b);
struct device *system_if_get_parent(struct device *dev);