22 	struct ifreq ifr;  in dev_ifname()  local
29 	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))  in dev_ifname()
32 	error = netdev_get_name(net, ifr.ifr_name, ifr.ifr_ifindex);  in dev_ifname()
36 	if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))  in dev_ifname()
121 static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cmd)  in dev_ifsioc_locked()  argument
124 	struct net_device *dev = dev_get_by_name_rcu(net, ifr->ifr_name);  in dev_ifsioc_locked()
131 		ifr->ifr_flags = (short) dev_get_flags(dev);  in dev_ifsioc_locked()
136 		ifr->ifr_metric = 0;  in dev_ifsioc_locked()
140 		ifr->ifr_mtu = dev->mtu;  in dev_ifsioc_locked()
145 			memset(ifr->ifr_hwaddr.sa_data, 0,  in dev_ifsioc_locked()
146 			       sizeof(ifr->ifr_hwaddr.sa_data));  in dev_ifsioc_locked()
148 			memcpy(ifr->ifr_hwaddr.sa_data, dev->dev_addr,  in dev_ifsioc_locked()
149 			       min(sizeof(ifr->ifr_hwaddr.sa_data),  in dev_ifsioc_locked()
151 		ifr->ifr_hwaddr.sa_family = dev->type;  in dev_ifsioc_locked()
159 		ifr->ifr_map.mem_start = dev->mem_start;  in dev_ifsioc_locked()
160 		ifr->ifr_map.mem_end   = dev->mem_end;  in dev_ifsioc_locked()
161 		ifr->ifr_map.base_addr = dev->base_addr;  in dev_ifsioc_locked()
162 		ifr->ifr_map.irq       = dev->irq;  in dev_ifsioc_locked()
163 		ifr->ifr_map.dma       = dev->dma;  in dev_ifsioc_locked()
164 		ifr->ifr_map.port      = dev->if_port;  in dev_ifsioc_locked()
168 		ifr->ifr_ifindex = dev->ifindex;  in dev_ifsioc_locked()
172 		ifr->ifr_qlen = dev->tx_queue_len;  in dev_ifsioc_locked()
187 static int net_hwtstamp_validate(struct ifreq *ifr)  in net_hwtstamp_validate()  argument
195 	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))  in net_hwtstamp_validate()
241 static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)  in dev_ifsioc()  argument
244 	struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);  in dev_ifsioc()
254 		return dev_change_flags(dev, ifr->ifr_flags);  in dev_ifsioc()
261 		return dev_set_mtu(dev, ifr->ifr_mtu);  in dev_ifsioc()
264 		return dev_set_mac_address(dev, &ifr->ifr_hwaddr);  in dev_ifsioc()
267 		if (ifr->ifr_hwaddr.sa_family != dev->type)  in dev_ifsioc()
269 		memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data,  in dev_ifsioc()
270 		       min(sizeof(ifr->ifr_hwaddr.sa_data),  in dev_ifsioc()
279 			return ops->ndo_set_config(dev, &ifr->ifr_map);  in dev_ifsioc()
285 		    ifr->ifr_hwaddr.sa_family != AF_UNSPEC)  in dev_ifsioc()
289 		return dev_mc_add_global(dev, ifr->ifr_hwaddr.sa_data);  in dev_ifsioc()
293 		    ifr->ifr_hwaddr.sa_family != AF_UNSPEC)  in dev_ifsioc()
297 		return dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data);  in dev_ifsioc()
300 		if (ifr->ifr_qlen < 0)  in dev_ifsioc()
302 		dev->tx_queue_len = ifr->ifr_qlen;  in dev_ifsioc()
306 		ifr->ifr_newname[IFNAMSIZ-1] = '\0';  in dev_ifsioc()
307 		return dev_change_name(dev, ifr->ifr_newname);  in dev_ifsioc()
310 		err = net_hwtstamp_validate(ifr);  in dev_ifsioc()
338 					err = ops->ndo_do_ioctl(dev, ifr, cmd);  in dev_ifsioc()
395 	struct ifreq ifr;  in dev_ioctl()  local
413 	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))  in dev_ioctl()
416 	ifr.ifr_name[IFNAMSIZ-1] = 0;  in dev_ioctl()
418 	colon = strchr(ifr.ifr_name, ':');  in dev_ioctl()
441 		dev_load(net, ifr.ifr_name);  in dev_ioctl()
443 		ret = dev_ifsioc_locked(net, &ifr, cmd);  in dev_ioctl()
448 			if (copy_to_user(arg, &ifr,  in dev_ioctl()
455 		dev_load(net, ifr.ifr_name);  in dev_ioctl()
457 		ret = dev_ethtool(net, &ifr);  in dev_ioctl()
462 			if (copy_to_user(arg, &ifr,  in dev_ioctl()
479 		dev_load(net, ifr.ifr_name);  in dev_ioctl()
481 		ret = dev_ifsioc(net, &ifr, cmd);  in dev_ioctl()
486 			if (copy_to_user(arg, &ifr,  in dev_ioctl()
530 		dev_load(net, ifr.ifr_name);  in dev_ioctl()
532 		ret = dev_ifsioc(net, &ifr, cmd);  in dev_ioctl()
553 			dev_load(net, ifr.ifr_name);  in dev_ioctl()
555 			ret = dev_ifsioc(net, &ifr, cmd);  in dev_ioctl()
557 			if (!ret && copy_to_user(arg, &ifr,  in dev_ioctl()
564 			return wext_handle_ioctl(net, &ifr, cmd, arg);  in dev_ioctl()