nl802154: avoid address change while running lowpan (9e3b71f3) · Commits · 戴 / test

The generation of autoconfigured IPv6 link-local addresses starts with a notification on interface up. To handle autoconfiguration according to RFC 4944 requires pan id and short address to generate an autoconfigured link-local address. This patch will avoid changing of these link-layer address configuration while lowpan interface is up. Reviewed-by:

Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by:

Alexander Aring <aar@pengutronix.de> Acked-by:

Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by:

Marcel Holtmann <marcel@holtmann.org>

net/ieee802154/nl802154.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -1074,6 +1074,11 @@ static int nl802154_set_pan_id(struct sk_buff skb, struct genl_info info)
		if (netif_running(dev))
		return -EBUSY;

		if (wpan_dev->lowpan_dev) {
		if (netif_running(wpan_dev->lowpan_dev))
		return -EBUSY;
		}

		/* don't change address fields on monitor */
		if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR \|\|
		!info->attrs[NL802154_ATTR_PAN_ID])
		@@ -1105,6 +1110,11 @@ static int nl802154_set_short_addr(struct sk_buff skb, struct genl_info info)
		if (netif_running(dev))
		return -EBUSY;

		if (wpan_dev->lowpan_dev) {
		if (netif_running(wpan_dev->lowpan_dev))
		return -EBUSY;
		}

		/* don't change address fields on monitor */
		if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR \|\|
		!info->attrs[NL802154_ATTR_SHORT_ADDR])

Admin message