2665 static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)  in tun_set_iff()  argument
2675 	if ((ifr->ifr_flags & IFF_NAPI_FRAGS)) {  in tun_set_iff()
2679 		if (!(ifr->ifr_flags & IFF_NAPI) ||  in tun_set_iff()
2680 		    (ifr->ifr_flags & TUN_TYPE_MASK) != IFF_TAP)  in tun_set_iff()
2684 	dev = __dev_get_by_name(net, ifr->ifr_name);  in tun_set_iff()
2686 		if (ifr->ifr_flags & IFF_TUN_EXCL)  in tun_set_iff()
2688 		if ((ifr->ifr_flags & IFF_TUN) && dev->netdev_ops == &tun_netdev_ops)  in tun_set_iff()
2690 		else if ((ifr->ifr_flags & IFF_TAP) && dev->netdev_ops == &tap_netdev_ops)  in tun_set_iff()
2695 		if (!!(ifr->ifr_flags & IFF_MULTI_QUEUE) !=  in tun_set_iff()
2705 		err = tun_attach(tun, file, ifr->ifr_flags & IFF_NOFILTER,  in tun_set_iff()
2706 				 ifr->ifr_flags & IFF_NAPI,  in tun_set_iff()
2707 				 ifr->ifr_flags & IFF_NAPI_FRAGS, true);  in tun_set_iff()
2721 			      (ifr->ifr_flags & TUN_FEATURES);  in tun_set_iff()
2727 		int queues = ifr->ifr_flags & IFF_MULTI_QUEUE ?  in tun_set_iff()
2737 		if (ifr->ifr_flags & IFF_TUN) {  in tun_set_iff()
2741 		} else if (ifr->ifr_flags & IFF_TAP) {  in tun_set_iff()
2748 		if (*ifr->ifr_name)  in tun_set_iff()
2749 			name = ifr->ifr_name;  in tun_set_iff()
2799 			      (ifr->ifr_flags & TUN_FEATURES);  in tun_set_iff()
2802 		err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI,  in tun_set_iff()
2803 				 ifr->ifr_flags & IFF_NAPI_FRAGS, false);  in tun_set_iff()
2824 	strcpy(ifr->ifr_name, tun->dev->name);  in tun_set_iff()
2846 static void tun_get_iff(struct tun_struct *tun, struct ifreq *ifr)  in tun_get_iff()  argument
2848 	strcpy(ifr->ifr_name, tun->dev->name);  in tun_get_iff()
2850 	ifr->ifr_flags = tun_flags(tun);  in tun_get_iff()
2938 static int tun_set_queue(struct file *file, struct ifreq *ifr)  in tun_set_queue()  argument
2946 	if (ifr->ifr_flags & IFF_ATTACH_QUEUE) {  in tun_set_queue()
2957 	} else if (ifr->ifr_flags & IFF_DETACH_QUEUE) {  in tun_set_queue()
3041 	struct ifreq ifr;  in __tun_chr_ioctl()  local
3052 		if (copy_from_user(&ifr, argp, ifreq_len))  in __tun_chr_ioctl()
3055 		memset(&ifr, 0, sizeof(ifr));  in __tun_chr_ioctl()
3065 		return tun_set_queue(file, &ifr);  in __tun_chr_ioctl()
3081 		ifr.ifr_name[IFNAMSIZ-1] = '\0';  in __tun_chr_ioctl()
3083 		ret = tun_set_iff(net, file, &ifr);  in __tun_chr_ioctl()
3088 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3116 		tun_get_iff(tun, &ifr);  in __tun_chr_ioctl()
3119 			ifr.ifr_flags |= IFF_DETACH_QUEUE;  in __tun_chr_ioctl()
3121 			ifr.ifr_flags |= IFF_NOFILTER;  in __tun_chr_ioctl()
3123 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3213 		dev_get_mac_address(&ifr.ifr_hwaddr, net, tun->dev->name);  in __tun_chr_ioctl()
3214 		if (copy_to_user(argp, &ifr, ifreq_len))  in __tun_chr_ioctl()
3220 		ret = dev_set_mac_address_user(tun->dev, &ifr.ifr_hwaddr, NULL);  in __tun_chr_ioctl()
3460 	struct ifreq ifr;  in tun_chr_show_fdinfo()  local
3462 	memset(&ifr, 0, sizeof(ifr));  in tun_chr_show_fdinfo()
3467 		tun_get_iff(tun, &ifr);  in tun_chr_show_fdinfo()
3473 	seq_printf(m, "iff:\t%s\n", ifr.ifr_name);  in tun_chr_show_fdinfo()