禁止在网口未运行时添加路由及地址

Signed-off-by: liangbotong <liangbotong@huawei.com>

src/linux/drivers/net/bt/Makefile

@@ -1,3 +1,3 @@
 # enable btdev:
-# kernel/linux/linux-5.10/drivers/net/Makefile add obj-y += bt/
+# kernel/linux/linux-5.10/drivers/net/Makefile add obj-y += bt/ or obj-$(CONFIG_NEWIP) += bt/
 obj-y += btdev.o

src/linux/net/newip/nip_addrconf.c

@@ -96,6 +96,12 @@ static struct ninet_ifaddr *nip_add_addr(struct ninet_dev *idev,
 		goto rcu_lock_out;
 	}
 
+	if (!netif_running(idev->dev)) {
+		nip_dbg("network interface is not running");
+		err = -ENODEV;
+		goto rcu_lock_out;
+	}
+
 	if (idev->cnf.disable_nip) {
 		err = -EACCES;
 		goto rcu_lock_out;

src/linux/net/newip/route.c

@@ -428,7 +428,13 @@ static struct nip_rt_info *nip_route_info_create(struct nip_fib_config *cfg)
 		nip_dbg("fail to get ninet dev (ifindex=%u)", cfg->fc_ifindex);
 		goto out;
 	}
-
+	/* Do not add a route when the network port is not running
+	 * to avoid incorrect route selection
+	 */
+	if (!netif_running(idev->dev)) {
+		nip_dbg("network interface is not running");
+		goto out;
+	}
 	if (cfg->fc_metric == 0)
 		cfg->fc_metric = NIP_RT_PRIO_USER;