2604 static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)  in tun_set_iff()  argument
2614 	if ((ifr->ifr_flags & IFF_NAPI_FRAGS)) {  in tun_set_iff()
2618 		if (!(ifr->ifr_flags & IFF_NAPI) ||  in tun_set_iff()
2619 		    (ifr->ifr_flags & TUN_TYPE_MASK) != IFF_TAP)  in tun_set_iff()
2623 	dev = __dev_get_by_name(net, ifr->ifr_name);  in tun_set_iff()
2625 		if (ifr->ifr_flags & IFF_TUN_EXCL)  in tun_set_iff()
2627 		if ((ifr->ifr_flags & IFF_TUN) && dev->netdev_ops == &tun_netdev_ops)  in tun_set_iff()
2629 		else if ((ifr->ifr_flags & IFF_TAP) && dev->netdev_ops == &tap_netdev_ops)  in tun_set_iff()
2634 		if (!!(ifr->ifr_flags & IFF_MULTI_QUEUE) !=  in tun_set_iff()
2644 		err = tun_attach(tun, file, ifr->ifr_flags & IFF_NOFILTER,  in tun_set_iff()
2645 				 ifr->ifr_flags & IFF_NAPI,  in tun_set_iff()
2646 				 ifr->ifr_flags & IFF_NAPI_FRAGS, true);  in tun_set_iff()
2660 			      (ifr->ifr_flags & TUN_FEATURES);  in tun_set_iff()
2666 		int queues = ifr->ifr_flags & IFF_MULTI_QUEUE ?  in tun_set_iff()
2676 		if (ifr->ifr_flags & IFF_TUN) {  in tun_set_iff()
2680 		} else if (ifr->ifr_flags & IFF_TAP) {  in tun_set_iff()
2687 		if (*ifr->ifr_name)  in tun_set_iff()
2688 			name = ifr->ifr_name;  in tun_set_iff()
2738 			      (ifr->ifr_flags & TUN_FEATURES);  in tun_set_iff()
2741 		err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI,  in tun_set_iff()
2742 				 ifr->ifr_flags & IFF_NAPI_FRAGS, false);  in tun_set_iff()
2763 	strcpy(ifr->ifr_name, tun->dev->name);  in tun_set_iff()
2785 static void tun_get_iff(struct tun_struct *tun, struct ifreq *ifr)  in tun_get_iff()  argument
2787 	strcpy(ifr->ifr_name, tun->dev->name);  in tun_get_iff()
2789 	ifr->ifr_flags = tun_flags(tun);  in tun_get_iff()
2877 static int tun_set_queue(struct file *file, struct ifreq *ifr)  in tun_set_queue()  argument
2885 	if (ifr->ifr_flags & IFF_ATTACH_QUEUE) {  in tun_set_queue()
2896 	} else if (ifr->ifr_flags & IFF_DETACH_QUEUE) {  in tun_set_queue()
2980 	struct ifreq ifr;  in __tun_chr_ioctl()  local
2991 		if (copy_from_user(&ifr, argp, ifreq_len))  in __tun_chr_ioctl()
2994 		memset(&ifr, 0, sizeof(ifr));  in __tun_chr_ioctl()
3004 		return tun_set_queue(file, &ifr);  in __tun_chr_ioctl()
3019 		ifr.ifr_name[IFNAMSIZ-1] = '\0';  in __tun_chr_ioctl()
3021 		ret = tun_set_iff(net, file, &ifr);  in __tun_chr_ioctl()
3026 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3054 		tun_get_iff(tun, &ifr);  in __tun_chr_ioctl()
3057 			ifr.ifr_flags |= IFF_DETACH_QUEUE;  in __tun_chr_ioctl()
3059 			ifr.ifr_flags |= IFF_NOFILTER;  in __tun_chr_ioctl()
3061 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3160 		dev_get_mac_address(&ifr.ifr_hwaddr, net, tun->dev->name);  in __tun_chr_ioctl()
3161 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3167 		ret = dev_set_mac_address_user(tun->dev, &ifr.ifr_hwaddr, NULL);  in __tun_chr_ioctl()
3407 	struct ifreq ifr;  in tun_chr_show_fdinfo()  local
3409 	memset(&ifr, 0, sizeof(ifr));  in tun_chr_show_fdinfo()
3414 		tun_get_iff(tun, &ifr);  in tun_chr_show_fdinfo()
3420 	seq_printf(m, "iff:\t%s\n", ifr.ifr_name);  in tun_chr_show_fdinfo()