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net/dev: check the available address further

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check the available address further to avoid obtain unusable device

Signed-off-by: chao.an <anchao@xiaomi.com>
This commit is contained in:
chao.an
2021-01-20 15:50:33 +08:00
committed by Xiang Xiao
parent bbdec3c4f4
commit a988437e90
1 changed files with 4 additions and 2 deletions
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net/netdev/netdev_findbyaddr.c
+4 -2
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@@ -73,7 +73,8 @@ FAR struct net_driver_s *netdev_findby_lipv4addr(in_addr_t lipaddr)
{ {
/* Is the interface in the "up" state? */ /* Is the interface in the "up" state? */
if ((dev->d_flags & IFF_UP) != 0) if ((dev->d_flags & IFF_UP) != 0 &&
!net_ipv4addr_cmp(dev->d_ipaddr, INADDR_ANY))
{ {
/* Yes.. check for an address match (under the netmask) */ /* Yes.. check for an address match (under the netmask) */
@@ -125,7 +126,8 @@ FAR struct net_driver_s *netdev_findby_lipv6addr(
{ {
/* Is the interface in the "up" state? */ /* Is the interface in the "up" state? */
if ((dev->d_flags & IFF_UP) != 0) if ((dev->d_flags & IFF_UP) != 0 &&
!net_ipv6addr_cmp(dev->d_ipv6addr, g_ipv6_unspecaddr))
{ {
/* Yes.. check for an address match (under the netmask) */ /* Yes.. check for an address match (under the netmask) */