2693 static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)  in tun_set_iff()  argument
2703 	if ((ifr->ifr_flags & IFF_NAPI_FRAGS)) {  in tun_set_iff()
2707 		if (!(ifr->ifr_flags & IFF_NAPI) ||  in tun_set_iff()
2708 		    (ifr->ifr_flags & TUN_TYPE_MASK) != IFF_TAP)  in tun_set_iff()
2712 	dev = __dev_get_by_name(net, ifr->ifr_name);  in tun_set_iff()
2714 		if (ifr->ifr_flags & IFF_TUN_EXCL)  in tun_set_iff()
2716 		if ((ifr->ifr_flags & IFF_TUN) && dev->netdev_ops == &tun_netdev_ops)  in tun_set_iff()
2718 		else if ((ifr->ifr_flags & IFF_TAP) && dev->netdev_ops == &tap_netdev_ops)  in tun_set_iff()
2723 		if (!!(ifr->ifr_flags & IFF_MULTI_QUEUE) !=  in tun_set_iff()
2733 		err = tun_attach(tun, file, ifr->ifr_flags & IFF_NOFILTER,  in tun_set_iff()
2734 				 ifr->ifr_flags & IFF_NAPI,  in tun_set_iff()
2735 				 ifr->ifr_flags & IFF_NAPI_FRAGS, true);  in tun_set_iff()
2749 			      (ifr->ifr_flags & TUN_FEATURES);  in tun_set_iff()
2755 		int queues = ifr->ifr_flags & IFF_MULTI_QUEUE ?  in tun_set_iff()
2765 		if (ifr->ifr_flags & IFF_TUN) {  in tun_set_iff()
2769 		} else if (ifr->ifr_flags & IFF_TAP) {  in tun_set_iff()
2776 		if (*ifr->ifr_name)  in tun_set_iff()
2777 			name = ifr->ifr_name;  in tun_set_iff()
2830 			      (ifr->ifr_flags & TUN_FEATURES);  in tun_set_iff()
2833 		err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI,  in tun_set_iff()
2834 				 ifr->ifr_flags & IFF_NAPI_FRAGS, false);  in tun_set_iff()
2857 	strcpy(ifr->ifr_name, tun->dev->name);  in tun_set_iff()
2875 static void tun_get_iff(struct tun_struct *tun, struct ifreq *ifr)  in tun_get_iff()  argument
2879 	strcpy(ifr->ifr_name, tun->dev->name);  in tun_get_iff()
2881 	ifr->ifr_flags = tun_flags(tun);  in tun_get_iff()
2969 static int tun_set_queue(struct file *file, struct ifreq *ifr)  in tun_set_queue()  argument
2977 	if (ifr->ifr_flags & IFF_ATTACH_QUEUE) {  in tun_set_queue()
2988 	} else if (ifr->ifr_flags & IFF_DETACH_QUEUE) {  in tun_set_queue()
3033 	struct ifreq ifr;  in __tun_chr_ioctl()  local
3044 		if (copy_from_user(&ifr, argp, ifreq_len))  in __tun_chr_ioctl()
3047 		memset(&ifr, 0, sizeof(ifr));  in __tun_chr_ioctl()
3057 		return tun_set_queue(file, &ifr);  in __tun_chr_ioctl()
3073 		ifr.ifr_name[IFNAMSIZ-1] = '\0';  in __tun_chr_ioctl()
3075 		ret = tun_set_iff(net, file, &ifr);  in __tun_chr_ioctl()
3080 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3108 		tun_get_iff(tun, &ifr);  in __tun_chr_ioctl()
3111 			ifr.ifr_flags |= IFF_DETACH_QUEUE;  in __tun_chr_ioctl()
3113 			ifr.ifr_flags |= IFF_NOFILTER;  in __tun_chr_ioctl()
3115 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3205 		memcpy(ifr.ifr_hwaddr.sa_data, tun->dev->dev_addr, ETH_ALEN);  in __tun_chr_ioctl()
3206 		ifr.ifr_hwaddr.sa_family = tun->dev->type;  in __tun_chr_ioctl()
3207 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3214 			  ifr.ifr_hwaddr.sa_data);  in __tun_chr_ioctl()
3216 		ret = dev_set_mac_address(tun->dev, &ifr.ifr_hwaddr, NULL);  in __tun_chr_ioctl()
3458 	struct ifreq ifr;  in tun_chr_show_fdinfo()  local
3460 	memset(&ifr, 0, sizeof(ifr));  in tun_chr_show_fdinfo()
3465 		tun_get_iff(tun, &ifr);  in tun_chr_show_fdinfo()
3471 	seq_printf(m, "iff:\t%s\n", ifr.ifr_name);  in tun_chr_show_fdinfo()