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net: config: Try to only use auto started interface 

If the first network interface is down when the net config init
is run, then the IP addresses etc would be set to wrong network
interface. So when initializing the network, try to first find
a network interface that is auto started and use that to configure
IP addresses etc.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2021-03-04 14:08:03 +02:00 committed by Anas Nashif
parent fd4928aedd
commit 362591810f
1 changed files with 16 additions and 0 deletions
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16
subsys/net/lib/config/init.c
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@ -414,6 +414,17 @@ int net_config_init(const char *app_info, uint32_t flags,
return net_config_init_by_iface(NULL, app_info, flags, timeout);
}
static void iface_find_cb(struct net_if *iface, void *user_data)
{
struct net_if **iface_to_use = user_data;
if (*iface_to_use == NULL &&
!net_if_flag_is_set(iface, NET_IF_NO_AUTO_START)) {
*iface_to_use = iface;
return;
}
}
int net_config_init_app(const struct device *dev, const char *app_info)
{
struct net_if *iface = NULL;
@ -453,6 +464,11 @@ int net_config_init_app(const struct device *dev, const char *app_info)
flags |= NET_CONFIG_NEED_IPV4;
}
/* Only try to use a network interface that is auto started */
if (iface == NULL) {
net_if_foreach(iface_find_cb, &iface);
}
/* Initialize the application automatically if needed */
ret = net_config_init_by_iface(iface, app_info, flags,
CONFIG_NET_CONFIG_INIT_TIMEOUT * MSEC_PER_SEC);