11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Ioctl handler 31da177e4SLinus Torvalds * Linux ethernet bridge 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Authors: 61da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 71da177e4SLinus Torvalds * 81da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 91da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 101da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 111da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 121da177e4SLinus Torvalds */ 131da177e4SLinus Torvalds 144fc268d2SRandy Dunlap #include <linux/capability.h> 151da177e4SLinus Torvalds #include <linux/kernel.h> 161da177e4SLinus Torvalds #include <linux/if_bridge.h> 171da177e4SLinus Torvalds #include <linux/netdevice.h> 185a0e3ad6STejun Heo #include <linux/slab.h> 191da177e4SLinus Torvalds #include <linux/times.h> 20881d966bSEric W. Biederman #include <net/net_namespace.h> 217c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 221da177e4SLinus Torvalds #include "br_private.h" 231da177e4SLinus Torvalds 244aa678baSAlexey Dobriyan static int get_bridge_ifindices(struct net *net, int *indices, int num) 251da177e4SLinus Torvalds { 261da177e4SLinus Torvalds struct net_device *dev; 271da177e4SLinus Torvalds int i = 0; 281da177e4SLinus Torvalds 2931ca0458SNikolay Aleksandrov rcu_read_lock(); 3031ca0458SNikolay Aleksandrov for_each_netdev_rcu(net, dev) { 317562f876SPavel Emelianov if (i >= num) 327562f876SPavel Emelianov break; 331da177e4SLinus Torvalds if (dev->priv_flags & IFF_EBRIDGE) 341da177e4SLinus Torvalds indices[i++] = dev->ifindex; 351da177e4SLinus Torvalds } 3631ca0458SNikolay Aleksandrov rcu_read_unlock(); 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds return i; 391da177e4SLinus Torvalds } 401da177e4SLinus Torvalds 411da177e4SLinus Torvalds /* called with RTNL */ 421da177e4SLinus Torvalds static void get_port_ifindices(struct net_bridge *br, int *ifindices, int num) 431da177e4SLinus Torvalds { 441da177e4SLinus Torvalds struct net_bridge_port *p; 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds list_for_each_entry(p, &br->port_list, list) { 471da177e4SLinus Torvalds if (p->port_no < num) 481da177e4SLinus Torvalds ifindices[p->port_no] = p->dev->ifindex; 491da177e4SLinus Torvalds } 501da177e4SLinus Torvalds } 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds /* 531da177e4SLinus Torvalds * Format up to a page worth of forwarding table entries 541da177e4SLinus Torvalds * userbuf -- where to copy result 551da177e4SLinus Torvalds * maxnum -- maximum number of entries desired 561da177e4SLinus Torvalds * (limited to a page for sanity) 571da177e4SLinus Torvalds * offset -- number of records to skip 581da177e4SLinus Torvalds */ 591da177e4SLinus Torvalds static int get_fdb_entries(struct net_bridge *br, void __user *userbuf, 601da177e4SLinus Torvalds unsigned long maxnum, unsigned long offset) 611da177e4SLinus Torvalds { 621da177e4SLinus Torvalds int num; 631da177e4SLinus Torvalds void *buf; 64ba8379b2SChris Wright size_t size; 651da177e4SLinus Torvalds 66ba8379b2SChris Wright /* Clamp size to PAGE_SIZE, test maxnum to avoid overflow */ 67ba8379b2SChris Wright if (maxnum > PAGE_SIZE/sizeof(struct __fdb_entry)) 681da177e4SLinus Torvalds maxnum = PAGE_SIZE/sizeof(struct __fdb_entry); 69ba8379b2SChris Wright 70ba8379b2SChris Wright size = maxnum * sizeof(struct __fdb_entry); 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds buf = kmalloc(size, GFP_USER); 731da177e4SLinus Torvalds if (!buf) 741da177e4SLinus Torvalds return -ENOMEM; 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds num = br_fdb_fillbuf(br, buf, maxnum, offset); 771da177e4SLinus Torvalds if (num > 0) { 781da177e4SLinus Torvalds if (copy_to_user(userbuf, buf, num*sizeof(struct __fdb_entry))) 791da177e4SLinus Torvalds num = -EFAULT; 801da177e4SLinus Torvalds } 811da177e4SLinus Torvalds kfree(buf); 821da177e4SLinus Torvalds 831da177e4SLinus Torvalds return num; 841da177e4SLinus Torvalds } 851da177e4SLinus Torvalds 8631ef30c7SEric Dumazet /* called with RTNL */ 871da177e4SLinus Torvalds static int add_del_if(struct net_bridge *br, int ifindex, int isadd) 881da177e4SLinus Torvalds { 89cb990503SEric W. Biederman struct net *net = dev_net(br->dev); 901da177e4SLinus Torvalds struct net_device *dev; 911da177e4SLinus Torvalds int ret; 921da177e4SLinus Torvalds 93cb990503SEric W. Biederman if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) 941da177e4SLinus Torvalds return -EPERM; 951da177e4SLinus Torvalds 96cb990503SEric W. Biederman dev = __dev_get_by_index(net, ifindex); 971da177e4SLinus Torvalds if (dev == NULL) 981da177e4SLinus Torvalds return -EINVAL; 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds if (isadd) 1011da177e4SLinus Torvalds ret = br_add_if(br, dev); 1021da177e4SLinus Torvalds else 1031da177e4SLinus Torvalds ret = br_del_if(br, dev); 1041da177e4SLinus Torvalds 1051da177e4SLinus Torvalds return ret; 1061da177e4SLinus Torvalds } 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds /* 1091da177e4SLinus Torvalds * Legacy ioctl's through SIOCDEVPRIVATE 1101da177e4SLinus Torvalds * This interface is deprecated because it was too difficult to 11125985edcSLucas De Marchi * to do the translation for 32/64bit ioctl compatibility. 1121da177e4SLinus Torvalds */ 1131da177e4SLinus Torvalds static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 1141da177e4SLinus Torvalds { 1151da177e4SLinus Torvalds struct net_bridge *br = netdev_priv(dev); 116bf871ad7SXin Long struct net_bridge_port *p = NULL; 1171da177e4SLinus Torvalds unsigned long args[4]; 118bf871ad7SXin Long int ret = -EOPNOTSUPP; 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds if (copy_from_user(args, rq->ifr_data, sizeof(args))) 1211da177e4SLinus Torvalds return -EFAULT; 1221da177e4SLinus Torvalds 1231da177e4SLinus Torvalds switch (args[0]) { 1241da177e4SLinus Torvalds case BRCTL_ADD_IF: 1251da177e4SLinus Torvalds case BRCTL_DEL_IF: 1261da177e4SLinus Torvalds return add_del_if(br, args[1], args[0] == BRCTL_ADD_IF); 1271da177e4SLinus Torvalds 1281da177e4SLinus Torvalds case BRCTL_GET_BRIDGE_INFO: 1291da177e4SLinus Torvalds { 1301da177e4SLinus Torvalds struct __bridge_info b; 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds memset(&b, 0, sizeof(struct __bridge_info)); 1331da177e4SLinus Torvalds rcu_read_lock(); 1341da177e4SLinus Torvalds memcpy(&b.designated_root, &br->designated_root, 8); 1351da177e4SLinus Torvalds memcpy(&b.bridge_id, &br->bridge_id, 8); 1361da177e4SLinus Torvalds b.root_path_cost = br->root_path_cost; 1371da177e4SLinus Torvalds b.max_age = jiffies_to_clock_t(br->max_age); 1381da177e4SLinus Torvalds b.hello_time = jiffies_to_clock_t(br->hello_time); 1391da177e4SLinus Torvalds b.forward_delay = br->forward_delay; 1401da177e4SLinus Torvalds b.bridge_max_age = br->bridge_max_age; 1411da177e4SLinus Torvalds b.bridge_hello_time = br->bridge_hello_time; 1421da177e4SLinus Torvalds b.bridge_forward_delay = jiffies_to_clock_t(br->bridge_forward_delay); 1431da177e4SLinus Torvalds b.topology_change = br->topology_change; 1441da177e4SLinus Torvalds b.topology_change_detected = br->topology_change_detected; 1451da177e4SLinus Torvalds b.root_port = br->root_port; 1469cde0708SStephen Hemminger 1479cde0708SStephen Hemminger b.stp_enabled = (br->stp_enabled != BR_NO_STP); 1481da177e4SLinus Torvalds b.ageing_time = jiffies_to_clock_t(br->ageing_time); 1491da177e4SLinus Torvalds b.hello_timer_value = br_timer_value(&br->hello_timer); 1501da177e4SLinus Torvalds b.tcn_timer_value = br_timer_value(&br->tcn_timer); 1511da177e4SLinus Torvalds b.topology_change_timer_value = br_timer_value(&br->topology_change_timer); 152f7cdee8aSNikolay Aleksandrov b.gc_timer_value = br_timer_value(&br->gc_work.timer); 1531da177e4SLinus Torvalds rcu_read_unlock(); 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds if (copy_to_user((void __user *)args[1], &b, sizeof(b))) 1561da177e4SLinus Torvalds return -EFAULT; 1571da177e4SLinus Torvalds 1581da177e4SLinus Torvalds return 0; 1591da177e4SLinus Torvalds } 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvalds case BRCTL_GET_PORT_LIST: 1621da177e4SLinus Torvalds { 1631da177e4SLinus Torvalds int num, *indices; 1641da177e4SLinus Torvalds 1651da177e4SLinus Torvalds num = args[2]; 1661da177e4SLinus Torvalds if (num < 0) 1671da177e4SLinus Torvalds return -EINVAL; 1681da177e4SLinus Torvalds if (num == 0) 1691da177e4SLinus Torvalds num = 256; 1701da177e4SLinus Torvalds if (num > BR_MAX_PORTS) 1711da177e4SLinus Torvalds num = BR_MAX_PORTS; 1721da177e4SLinus Torvalds 1730da974f4SPanagiotis Issaris indices = kcalloc(num, sizeof(int), GFP_KERNEL); 1741da177e4SLinus Torvalds if (indices == NULL) 1751da177e4SLinus Torvalds return -ENOMEM; 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds get_port_ifindices(br, indices, num); 1781da177e4SLinus Torvalds if (copy_to_user((void __user *)args[1], indices, num*sizeof(int))) 1791da177e4SLinus Torvalds num = -EFAULT; 1801da177e4SLinus Torvalds kfree(indices); 1811da177e4SLinus Torvalds return num; 1821da177e4SLinus Torvalds } 1831da177e4SLinus Torvalds 1841da177e4SLinus Torvalds case BRCTL_SET_BRIDGE_FORWARD_DELAY: 185cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 1861da177e4SLinus Torvalds return -EPERM; 1871da177e4SLinus Torvalds 188bf871ad7SXin Long ret = br_set_forward_delay(br, args[1]); 189bf871ad7SXin Long break; 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds case BRCTL_SET_BRIDGE_HELLO_TIME: 192cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 1931da177e4SLinus Torvalds return -EPERM; 1941da177e4SLinus Torvalds 195bf871ad7SXin Long ret = br_set_hello_time(br, args[1]); 196bf871ad7SXin Long break; 1971da177e4SLinus Torvalds 1981da177e4SLinus Torvalds case BRCTL_SET_BRIDGE_MAX_AGE: 199cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 2001da177e4SLinus Torvalds return -EPERM; 2011da177e4SLinus Torvalds 202bf871ad7SXin Long ret = br_set_max_age(br, args[1]); 203bf871ad7SXin Long break; 2041da177e4SLinus Torvalds 2051da177e4SLinus Torvalds case BRCTL_SET_AGEING_TIME: 206cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 2071da177e4SLinus Torvalds return -EPERM; 2081da177e4SLinus Torvalds 209bf871ad7SXin Long ret = br_set_ageing_time(br, args[1]); 210bf871ad7SXin Long break; 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds case BRCTL_GET_PORT_INFO: 2131da177e4SLinus Torvalds { 2141da177e4SLinus Torvalds struct __port_info p; 2151da177e4SLinus Torvalds struct net_bridge_port *pt; 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds rcu_read_lock(); 2181da177e4SLinus Torvalds if ((pt = br_get_port(br, args[2])) == NULL) { 2191da177e4SLinus Torvalds rcu_read_unlock(); 2201da177e4SLinus Torvalds return -EINVAL; 2211da177e4SLinus Torvalds } 2221da177e4SLinus Torvalds 2231da177e4SLinus Torvalds memset(&p, 0, sizeof(struct __port_info)); 2241da177e4SLinus Torvalds memcpy(&p.designated_root, &pt->designated_root, 8); 2251da177e4SLinus Torvalds memcpy(&p.designated_bridge, &pt->designated_bridge, 8); 2261da177e4SLinus Torvalds p.port_id = pt->port_id; 2271da177e4SLinus Torvalds p.designated_port = pt->designated_port; 2281da177e4SLinus Torvalds p.path_cost = pt->path_cost; 2291da177e4SLinus Torvalds p.designated_cost = pt->designated_cost; 2301da177e4SLinus Torvalds p.state = pt->state; 2311da177e4SLinus Torvalds p.top_change_ack = pt->topology_change_ack; 2321da177e4SLinus Torvalds p.config_pending = pt->config_pending; 2331da177e4SLinus Torvalds p.message_age_timer_value = br_timer_value(&pt->message_age_timer); 2341da177e4SLinus Torvalds p.forward_delay_timer_value = br_timer_value(&pt->forward_delay_timer); 2351da177e4SLinus Torvalds p.hold_timer_value = br_timer_value(&pt->hold_timer); 2361da177e4SLinus Torvalds 2371da177e4SLinus Torvalds rcu_read_unlock(); 2381da177e4SLinus Torvalds 2391da177e4SLinus Torvalds if (copy_to_user((void __user *)args[1], &p, sizeof(p))) 2401da177e4SLinus Torvalds return -EFAULT; 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds return 0; 2431da177e4SLinus Torvalds } 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds case BRCTL_SET_BRIDGE_STP_STATE: 246cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 2471da177e4SLinus Torvalds return -EPERM; 2481da177e4SLinus Torvalds 2499cde0708SStephen Hemminger br_stp_set_enabled(br, args[1]); 250bf871ad7SXin Long ret = 0; 251bf871ad7SXin Long break; 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds case BRCTL_SET_BRIDGE_PRIORITY: 254cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 2551da177e4SLinus Torvalds return -EPERM; 2561da177e4SLinus Torvalds 2571da177e4SLinus Torvalds br_stp_set_bridge_priority(br, args[1]); 258bf871ad7SXin Long ret = 0; 259bf871ad7SXin Long break; 2601da177e4SLinus Torvalds 2611da177e4SLinus Torvalds case BRCTL_SET_PORT_PRIORITY: 2621da177e4SLinus Torvalds { 263cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 2641da177e4SLinus Torvalds return -EPERM; 2651da177e4SLinus Torvalds 2661da177e4SLinus Torvalds spin_lock_bh(&br->lock); 2671da177e4SLinus Torvalds if ((p = br_get_port(br, args[1])) == NULL) 2681da177e4SLinus Torvalds ret = -EINVAL; 2691da177e4SLinus Torvalds else 27014f98f25Sstephen hemminger ret = br_stp_set_port_priority(p, args[2]); 2711da177e4SLinus Torvalds spin_unlock_bh(&br->lock); 272bf871ad7SXin Long break; 2731da177e4SLinus Torvalds } 2741da177e4SLinus Torvalds 2751da177e4SLinus Torvalds case BRCTL_SET_PATH_COST: 2761da177e4SLinus Torvalds { 277cb990503SEric W. Biederman if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) 2781da177e4SLinus Torvalds return -EPERM; 2791da177e4SLinus Torvalds 28014f98f25Sstephen hemminger spin_lock_bh(&br->lock); 2811da177e4SLinus Torvalds if ((p = br_get_port(br, args[1])) == NULL) 2821da177e4SLinus Torvalds ret = -EINVAL; 2831da177e4SLinus Torvalds else 28414f98f25Sstephen hemminger ret = br_stp_set_path_cost(p, args[2]); 28514f98f25Sstephen hemminger spin_unlock_bh(&br->lock); 286bf871ad7SXin Long break; 2871da177e4SLinus Torvalds } 2881da177e4SLinus Torvalds 2891da177e4SLinus Torvalds case BRCTL_GET_FDB_ENTRIES: 2901da177e4SLinus Torvalds return get_fdb_entries(br, (void __user *)args[1], 2911da177e4SLinus Torvalds args[2], args[3]); 2921da177e4SLinus Torvalds } 2931da177e4SLinus Torvalds 294bf871ad7SXin Long if (!ret) { 295bf871ad7SXin Long if (p) 296bf871ad7SXin Long br_ifinfo_notify(RTM_NEWLINK, p); 297bf871ad7SXin Long else 298bf871ad7SXin Long netdev_state_change(br->dev); 299bf871ad7SXin Long } 300bf871ad7SXin Long 301bf871ad7SXin Long return ret; 3021da177e4SLinus Torvalds } 3031da177e4SLinus Torvalds 3044aa678baSAlexey Dobriyan static int old_deviceless(struct net *net, void __user *uarg) 3051da177e4SLinus Torvalds { 3061da177e4SLinus Torvalds unsigned long args[3]; 3071da177e4SLinus Torvalds 3081da177e4SLinus Torvalds if (copy_from_user(args, uarg, sizeof(args))) 3091da177e4SLinus Torvalds return -EFAULT; 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds switch (args[0]) { 3121da177e4SLinus Torvalds case BRCTL_GET_VERSION: 3131da177e4SLinus Torvalds return BRCTL_VERSION; 3141da177e4SLinus Torvalds 3151da177e4SLinus Torvalds case BRCTL_GET_BRIDGES: 3161da177e4SLinus Torvalds { 3171da177e4SLinus Torvalds int *indices; 3181da177e4SLinus Torvalds int ret = 0; 3191da177e4SLinus Torvalds 3201da177e4SLinus Torvalds if (args[2] >= 2048) 3211da177e4SLinus Torvalds return -ENOMEM; 3220da974f4SPanagiotis Issaris indices = kcalloc(args[2], sizeof(int), GFP_KERNEL); 3231da177e4SLinus Torvalds if (indices == NULL) 3241da177e4SLinus Torvalds return -ENOMEM; 3251da177e4SLinus Torvalds 3264aa678baSAlexey Dobriyan args[2] = get_bridge_ifindices(net, indices, args[2]); 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds ret = copy_to_user((void __user *)args[1], indices, args[2]*sizeof(int)) 3291da177e4SLinus Torvalds ? -EFAULT : args[2]; 3301da177e4SLinus Torvalds 3311da177e4SLinus Torvalds kfree(indices); 3321da177e4SLinus Torvalds return ret; 3331da177e4SLinus Torvalds } 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds case BRCTL_ADD_BRIDGE: 3361da177e4SLinus Torvalds case BRCTL_DEL_BRIDGE: 3371da177e4SLinus Torvalds { 3381da177e4SLinus Torvalds char buf[IFNAMSIZ]; 3391da177e4SLinus Torvalds 340cb990503SEric W. Biederman if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) 3411da177e4SLinus Torvalds return -EPERM; 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds if (copy_from_user(buf, (void __user *)args[1], IFNAMSIZ)) 3441da177e4SLinus Torvalds return -EFAULT; 3451da177e4SLinus Torvalds 3461da177e4SLinus Torvalds buf[IFNAMSIZ-1] = 0; 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds if (args[0] == BRCTL_ADD_BRIDGE) 3494aa678baSAlexey Dobriyan return br_add_bridge(net, buf); 3501da177e4SLinus Torvalds 3514aa678baSAlexey Dobriyan return br_del_bridge(net, buf); 3521da177e4SLinus Torvalds } 3531da177e4SLinus Torvalds } 3541da177e4SLinus Torvalds 3551da177e4SLinus Torvalds return -EOPNOTSUPP; 3561da177e4SLinus Torvalds } 3571da177e4SLinus Torvalds 358881d966bSEric W. Biederman int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *uarg) 3591da177e4SLinus Torvalds { 3601da177e4SLinus Torvalds switch (cmd) { 3611da177e4SLinus Torvalds case SIOCGIFBR: 3621da177e4SLinus Torvalds case SIOCSIFBR: 3634aa678baSAlexey Dobriyan return old_deviceless(net, uarg); 3641da177e4SLinus Torvalds 3651da177e4SLinus Torvalds case SIOCBRADDBR: 3661da177e4SLinus Torvalds case SIOCBRDELBR: 3671da177e4SLinus Torvalds { 3681da177e4SLinus Torvalds char buf[IFNAMSIZ]; 3691da177e4SLinus Torvalds 370cb990503SEric W. Biederman if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) 3711da177e4SLinus Torvalds return -EPERM; 3721da177e4SLinus Torvalds 3731da177e4SLinus Torvalds if (copy_from_user(buf, uarg, IFNAMSIZ)) 3741da177e4SLinus Torvalds return -EFAULT; 3751da177e4SLinus Torvalds 3761da177e4SLinus Torvalds buf[IFNAMSIZ-1] = 0; 3771da177e4SLinus Torvalds if (cmd == SIOCBRADDBR) 3784aa678baSAlexey Dobriyan return br_add_bridge(net, buf); 3791da177e4SLinus Torvalds 3804aa678baSAlexey Dobriyan return br_del_bridge(net, buf); 3811da177e4SLinus Torvalds } 3821da177e4SLinus Torvalds } 3831da177e4SLinus Torvalds return -EOPNOTSUPP; 3841da177e4SLinus Torvalds } 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 3871da177e4SLinus Torvalds { 3881da177e4SLinus Torvalds struct net_bridge *br = netdev_priv(dev); 3891da177e4SLinus Torvalds 3901da177e4SLinus Torvalds switch (cmd) { 3911da177e4SLinus Torvalds case SIOCDEVPRIVATE: 3921da177e4SLinus Torvalds return old_dev_ioctl(dev, rq, cmd); 3931da177e4SLinus Torvalds 3941da177e4SLinus Torvalds case SIOCBRADDIF: 3951da177e4SLinus Torvalds case SIOCBRDELIF: 3961da177e4SLinus Torvalds return add_del_if(br, rq->ifr_ifindex, cmd == SIOCBRADDIF); 3971da177e4SLinus Torvalds 3981da177e4SLinus Torvalds } 3991da177e4SLinus Torvalds 40028a16c97Sstephen hemminger br_debug(br, "Bridge does not support ioctl 0x%x\n", cmd); 4011da177e4SLinus Torvalds return -EOPNOTSUPP; 4021da177e4SLinus Torvalds } 403