[RTNETLINK]: ifindex 0 does not exist (51055be8) · Commits · 戴 / test

net/core/rtnetlink.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -580,7 +580,7 @@ static int rtnl_setlink(struct sk_buff skb, struct nlmsghdr nlh, void *arg)

		err = -EINVAL;
		ifm = nlmsg_data(nlh);
		if (ifm->ifi_index >= 0)
		if (ifm->ifi_index > 0)
		dev = dev_get_by_index(ifm->ifi_index);
		else if (tb[IFLA_IFNAME])
		dev = dev_get_by_name(ifname);
		@@ -672,7 +672,7 @@ static int rtnl_setlink(struct sk_buff skb, struct nlmsghdr nlh, void *arg)
		* name provided implies that a name change has been
		* requested.
		*/
		if (ifm->ifi_index >= 0 && ifname[0]) {
		if (ifm->ifi_index > 0 && ifname[0]) {
		err = dev_change_name(dev, ifname);
		if (err < 0)
		goto errout_dev;
		@@ -740,7 +740,7 @@ static int rtnl_getlink(struct sk_buff skb, struct nlmsghdr nlh, void *arg)
		return err;

		ifm = nlmsg_data(nlh);
		if (ifm->ifi_index >= 0) {
		if (ifm->ifi_index > 0) {
		dev = dev_get_by_index(ifm->ifi_index);
		if (dev == NULL)
		return -ENODEV;