/* * This is the linux wireless configuration interface. * * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/if.h>#include <linux/module.h>#include <linux/err.h>#include <linux/list.h>#include <linux/slab.h>#include <linux/nl80211.h>#include <linux/debugfs.h>#include <linux/notifier.h>#include <linux/device.h>#include <linux/etherdevice.h>#include <linux/rtnetlink.h>#include <linux/sched.h>#include <net/genetlink.h>#include <net/cfg80211.h>#include "nl80211.h"#include "core.h"#include "sysfs.h"#include "debugfs.h"#include "wext-compat.h"#include "ethtool.h" /* name for sysfs, %d is appended */#define PHY_NAME "phy" MODULE_AUTHOR("Johannes Berg");MODULE_LICENSE("GPL");MODULE_DESCRIPTION("wireless configuration support"); /* RCU-protected (and cfg80211_mutex for writers) */LIST_HEAD(cfg80211_rdev_list);int cfg80211_rdev_list_generation; DEFINE_MUTEX(cfg80211_mutex); /* for debugfs */static struct dentry *ieee80211_debugfs_dir; /* for the cleanup, scan and event works */struct workqueue_struct *cfg80211_wq; static bool cfg80211_disable_40mhz_24ghz;module_param(cfg80211_disable_40mhz_24ghz, bool, 0644);MODULE_PARM_DESC(cfg80211_disable_40mhz_24ghz, "Disable 40MHz support in the 2.4GHz band"); /* requires cfg80211_mutex to be held! */struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx){ struct cfg80211_registered_device *result = NULL, *rdev; if (!wiphy_idx_valid(wiphy_idx)) return NULL; assert_cfg80211_lock(); list_for_each_entry(rdev, &cfg80211_rdev_list, list) { if (rdev->wiphy_idx == wiphy_idx) { result = rdev; break; } } return result;} int get_wiphy_idx(struct wiphy *wiphy){ struct cfg80211_registered_device *rdev; if (!wiphy) return WIPHY_IDX_STALE; rdev = wiphy_to_dev(wiphy); return rdev->wiphy_idx;} /* requires cfg80211_rdev_mutex to be held! */struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx){ struct cfg80211_registered_device *rdev; if (!wiphy_idx_valid(wiphy_idx)) return NULL; assert_cfg80211_lock(); rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx); if (!rdev) return NULL; return &rdev->wiphy;} /* requires cfg80211_mutex to be held! */struct cfg80211_registered_device *__cfg80211_rdev_from_info(struct genl_info *info){ int ifindex; struct cfg80211_registered_device *bywiphyidx = NULL, *byifidx = NULL; struct net_device *dev; int err = -EINVAL; assert_cfg80211_lock(); if (info->attrs[NL80211_ATTR_WIPHY]) { bywiphyidx = cfg80211_rdev_by_wiphy_idx( nla_get_u32(info->attrs[NL80211_ATTR_WIPHY])); err = -ENODEV; } if (info->attrs[NL80211_ATTR_IFINDEX]) { ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); dev = dev_get_by_index(genl_info_net(info), ifindex); if (dev) { if (dev->ieee80211_ptr) byifidx = wiphy_to_dev(dev->ieee80211_ptr->wiphy); dev_put(dev); } err = -ENODEV; } if (bywiphyidx && byifidx) { if (bywiphyidx != byifidx) return ERR_PTR(-EINVAL); else return bywiphyidx; /* == byifidx */ } if (bywiphyidx) return bywiphyidx; if (byifidx) return byifidx; return ERR_PTR(err);} struct cfg80211_registered_device *cfg80211_get_dev_from_info(struct genl_info *info){ struct cfg80211_registered_device *rdev; mutex_lock(&cfg80211_mutex); rdev = __cfg80211_rdev_from_info(info); /* if it is not an error we grab the lock on * it to assure it won't be going away while * we operate on it */ if (!IS_ERR(rdev)) mutex_lock(&rdev->mtx); mutex_unlock(&cfg80211_mutex); return rdev;} struct cfg80211_registered_device *cfg80211_get_dev_from_ifindex(struct net *net, int ifindex){ struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV); struct net_device *dev; mutex_lock(&cfg80211_mutex); dev = dev_get_by_index(net, ifindex); if (!dev) goto out; if (dev->ieee80211_ptr) { rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy); mutex_lock(&rdev->mtx); } else rdev = ERR_PTR(-ENODEV); dev_put(dev); out: mutex_unlock(&cfg80211_mutex); return rdev;} /* requires cfg80211_mutex to be held */int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, char *newname){ struct cfg80211_registered_device *rdev2; int wiphy_idx, taken = -1, result, digits; assert_cfg80211_lock(); /* prohibit calling the thing phy%d when %d is not its number */ sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken); if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) { /* count number of places needed to print wiphy_idx */ digits = 1; while (wiphy_idx /= 10) digits++; /* * deny the name if it is phy<idx> where <idx> is printed * without leading zeroes. taken == strlen(newname) here */ if (taken == strlen(PHY_NAME) + digits) return -EINVAL; } /* Ignore nop renames */ if (strcmp(newname, dev_name(&rdev->wiphy.dev)) == 0) return 0; /* Ensure another device does not already have this name. */ list_for_each_entry(rdev2, &cfg80211_rdev_list, list) if (strcmp(newname, dev_name(&rdev2->wiphy.dev)) == 0) return -EINVAL; result = device_rename(&rdev->wiphy.dev, newname); if (result) return result; if (rdev->wiphy.debugfsdir && !debugfs_rename(rdev->wiphy.debugfsdir->d_parent, rdev->wiphy.debugfsdir, rdev->wiphy.debugfsdir->d_parent, newname)) pr_err("failed to rename debugfs dir to %s!\n", newname); nl80211_notify_dev_rename(rdev); return 0;} int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, struct net *net){ struct wireless_dev *wdev; int err = 0; if (!(rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK)) return -EOPNOTSUPP; list_for_each_entry(wdev, &rdev->netdev_list, list) { wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL; err = dev_change_net_namespace(wdev->netdev, net, "wlan%d"); if (err) break; wdev->netdev->features |= NETIF_F_NETNS_LOCAL; } if (err) { /* failed -- clean up to old netns */ net = wiphy_net(&rdev->wiphy); list_for_each_entry_continue_reverse(wdev, &rdev->netdev_list, list) { wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL; err = dev_change_net_namespace(wdev->netdev, net, "wlan%d"); WARN_ON(err); wdev->netdev->features |= NETIF_F_NETNS_LOCAL; } return err; } wiphy_net_set(&rdev->wiphy, net); err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev)); WARN_ON(err); return 0;} static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data){ struct cfg80211_registered_device *rdev = data; rdev->ops->rfkill_poll(&rdev->wiphy);} static int cfg80211_rfkill_set_block(void *data, bool blocked){ struct cfg80211_registered_device *rdev = data; struct wireless_dev *wdev; if (!blocked) return 0; rtnl_lock(); mutex_lock(&rdev->devlist_mtx); list_for_each_entry(wdev, &rdev->netdev_list, list) dev_close(wdev->netdev); mutex_unlock(&rdev->devlist_mtx); rtnl_unlock(); return 0;} static void cfg80211_rfkill_sync_work(struct work_struct *work){ struct cfg80211_registered_device *rdev; rdev = container_of(work, struct cfg80211_registered_device, rfkill_sync); cfg80211_rfkill_set_block(rdev, rfkill_blocked(rdev->rfkill));} static void cfg80211_event_work(struct work_struct *work){ struct cfg80211_registered_device *rdev; rdev = container_of(work, struct cfg80211_registered_device, event_work); rtnl_lock(); cfg80211_lock_rdev(rdev); cfg80211_process_rdev_events(rdev); cfg80211_unlock_rdev(rdev); rtnl_unlock();} /* exported functions */ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv){ static int wiphy_counter; struct cfg80211_registered_device *rdev; int alloc_size; WARN_ON(ops->add_key && (!ops->del_key || !ops->set_default_key)); WARN_ON(ops->auth && (!ops->assoc || !ops->deauth || !ops->disassoc)); WARN_ON(ops->connect && !ops->disconnect); WARN_ON(ops->join_ibss && !ops->leave_ibss); WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf); WARN_ON(ops->add_station && !ops->del_station); WARN_ON(ops->add_mpath && !ops->del_mpath); WARN_ON(ops->join_mesh && !ops->leave_mesh); alloc_size = sizeof(*rdev) + sizeof_priv; rdev = kzalloc(alloc_size, GFP_KERNEL); if (!rdev) return NULL; rdev->ops = ops; mutex_lock(&cfg80211_mutex); rdev->wiphy_idx = wiphy_counter++; if (unlikely(!wiphy_idx_valid(rdev->wiphy_idx))) { wiphy_counter--; mutex_unlock(&cfg80211_mutex); /* ugh, wrapped! */ kfree(rdev); return NULL; } mutex_unlock(&cfg80211_mutex); /* give it a proper name */ dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx); mutex_init(&rdev->mtx); mutex_init(&rdev->devlist_mtx); mutex_init(&rdev->sched_scan_mtx); INIT_LIST_HEAD(&rdev->netdev_list); spin_lock_init(&rdev->bss_lock); INIT_LIST_HEAD(&rdev->bss_list); INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done); INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results);#ifdef CONFIG_CFG80211_WEXT rdev->wiphy.wext = &cfg80211_wext_handler;#endif device_initialize(&rdev->wiphy.dev); rdev->wiphy.dev.class = &ieee80211_class; rdev->wiphy.dev.platform_data = rdev; #ifdef CONFIG_CFG80211_DEFAULT_PS rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;#endif wiphy_net_set(&rdev->wiphy, &init_net); rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block; rdev->rfkill = rfkill_alloc(dev_name(&rdev->wiphy.dev), &rdev->wiphy.dev, RFKILL_TYPE_WLAN, &rdev->rfkill_ops, rdev); if (!rdev->rfkill) { kfree(rdev); return NULL; } INIT_WORK(&rdev->rfkill_sync, cfg80211_rfkill_sync_work); INIT_WORK(&rdev->conn_work, cfg80211_conn_work); INIT_WORK(&rdev->event_work, cfg80211_event_work); init_waitqueue_head(&rdev->dev_wait); /* * Initialize wiphy parameters to IEEE 802.11 MIB default values. * Fragmentation and RTS threshold are disabled by default with the * special -1 value. */ rdev->wiphy.retry_short = 7; rdev->wiphy.retry_long = 4; rdev->wiphy.frag_threshold = (u32) -1; rdev->wiphy.rts_threshold = (u32) -1; rdev->wiphy.coverage_class = 0; return &rdev->wiphy;}EXPORT_SYMBOL(wiphy_new); static int wiphy_verify_combinations(struct wiphy *wiphy){ const struct ieee80211_iface_combination *c; int i, j; for (i = 0; i < wiphy->n_iface_combinations; i++) { u32 cnt = 0; u16 all_iftypes = 0; c = &wiphy->iface_combinations[i]; /* Combinations with just one interface aren't real */ if (WARN_ON(c->max_interfaces < 2)) return -EINVAL; /* Need at least one channel */ if (WARN_ON(!c->num_different_channels)) return -EINVAL; if (WARN_ON(!c->n_limits)) return -EINVAL; for (j = 0; j < c->n_limits; j++) { u16 types = c->limits[j].types; /* * interface types shouldn't overlap, this is * used in cfg80211_can_change_interface() */ if (WARN_ON(types & all_iftypes)) return -EINVAL; all_iftypes |= types; if (WARN_ON(!c->limits[j].max)) return -EINVAL; /* Shouldn't list software iftypes in combinations! */ if (WARN_ON(wiphy->software_iftypes & types)) return -EINVAL; cnt += c->limits[j].max; /* * Don't advertise an unsupported type * in a combination. */ if (WARN_ON((wiphy->interface_modes & types) != types)) return -EINVAL; } /* You can't even choose that many! */ if (WARN_ON(cnt < c->max_interfaces)) return -EINVAL; } return 0;} int wiphy_register(struct wiphy *wiphy){ struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); int res; enum ieee80211_band band; struct ieee80211_supported_band *sband; bool have_band = false; int i; u16 ifmodes = wiphy->interface_modes; if (WARN_ON((wiphy->wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && !(wiphy->wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY))) return -EINVAL; if (WARN_ON(wiphy->ap_sme_capa && !(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME))) return -EINVAL; if (WARN_ON(wiphy->addresses && !wiphy->n_addresses)) return -EINVAL; if (WARN_ON(wiphy->addresses && !is_zero_ether_addr(wiphy->perm_addr) && memcmp(wiphy->perm_addr, wiphy->addresses[0].addr,Lines 1–500 of 1071. 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/* * This is the linux wireless configuration interface. * * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/if.h> #include <linux/module.h> #include <linux/err.h> #include <linux/list.h> #include <linux/slab.h> #include <linux/nl80211.h> #include <linux/debugfs.h> #include <linux/notifier.h> #include <linux/device.h> #include <linux/etherdevice.h> #include <linux/rtnetlink.h> #include <linux/sched.h> #include <net/genetlink.h> #include <net/cfg80211.h> #include "nl80211.h" #include "core.h" #include "sysfs.h" #include "debugfs.h" #include "wext-compat.h" #include "ethtool.h" /* name for sysfs, %d is appended */ #define PHY_NAME "phy" MODULE_AUTHOR("Johannes Berg"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("wireless configuration support"); /* RCU-protected (and cfg80211_mutex for writers) */ LIST_HEAD(cfg80211_rdev_list); int cfg80211_rdev_list_generation; DEFINE_MUTEX(cfg80211_mutex); /* for debugfs */ static struct dentry *ieee80211_debugfs_dir; /* for the cleanup, scan and event works */ struct workqueue_struct *cfg80211_wq; static bool cfg80211_disable_40mhz_24ghz; module_param(cfg80211_disable_40mhz_24ghz, bool, 0644); MODULE_PARM_DESC(cfg80211_disable_40mhz_24ghz, "Disable 40MHz support in the 2.4GHz band"); /* requires cfg80211_mutex to be held! */ struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx) { struct cfg80211_registered_device *result = NULL, *rdev; if (!wiphy_idx_valid(wiphy_idx)) return NULL; assert_cfg80211_lock(); list_for_each_entry(rdev, &cfg80211_rdev_list, list) { if (rdev->wiphy_idx == wiphy_idx) { result = rdev; break; } } return result; } int get_wiphy_idx(struct wiphy *wiphy) { struct cfg80211_registered_device *rdev; if (!wiphy) return WIPHY_IDX_STALE; rdev = wiphy_to_dev(wiphy); return rdev->wiphy_idx; } /* requires cfg80211_rdev_mutex to be held! */ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx) { struct cfg80211_registered_device *rdev; if (!wiphy_idx_valid(wiphy_idx)) return NULL; assert_cfg80211_lock(); rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx); if (!rdev) return NULL; return &rdev->wiphy; } /* requires cfg80211_mutex to be held! */ struct cfg80211_registered_device * __cfg80211_rdev_from_info(struct genl_info *info) { int ifindex; struct cfg80211_registered_device *bywiphyidx = NULL, *byifidx = NULL; struct net_device *dev; int err = -EINVAL; assert_cfg80211_lock(); if (info->attrs[NL80211_ATTR_WIPHY]) { bywiphyidx = cfg80211_rdev_by_wiphy_idx( nla_get_u32(info->attrs[NL80211_ATTR_WIPHY])); err = -ENODEV; } if (info->attrs[NL80211_ATTR_IFINDEX]) { ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); dev = dev_get_by_index(genl_info_net(info), ifindex); if (dev) { if (dev->ieee80211_ptr) byifidx = wiphy_to_dev(dev->ieee80211_ptr->wiphy); dev_put(dev); } err = -ENODEV; } if (bywiphyidx && byifidx) { if (bywiphyidx != byifidx) return ERR_PTR(-EINVAL); else return bywiphyidx; /* == byifidx */ } if (bywiphyidx) return bywiphyidx; if (byifidx) return byifidx; return ERR_PTR(err); } struct cfg80211_registered_device * cfg80211_get_dev_from_info(struct genl_info *info) { struct cfg80211_registered_device *rdev; mutex_lock(&cfg80211_mutex); rdev = __cfg80211_rdev_from_info(info); /* if it is not an error we grab the lock on * it to assure it won't be going away while * we operate on it */ if (!IS_ERR(rdev)) mutex_lock(&rdev->mtx); mutex_unlock(&cfg80211_mutex); return rdev; } struct cfg80211_registered_device * cfg80211_get_dev_from_ifindex(struct net *net, int ifindex) { struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV); struct net_device *dev; mutex_lock(&cfg80211_mutex); dev = dev_get_by_index(net, ifindex); if (!dev) goto out; if (dev->ieee80211_ptr) { rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy); mutex_lock(&rdev->mtx); } else rdev = ERR_PTR(-ENODEV); dev_put(dev); out: mutex_unlock(&cfg80211_mutex); return rdev; } /* requires cfg80211_mutex to be held */ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, char *newname) { struct cfg80211_registered_device *rdev2; int wiphy_idx, taken = -1, result, digits; assert_cfg80211_lock(); /* prohibit calling the thing phy%d when %d is not its number */ sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken); if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) { /* count number of places needed to print wiphy_idx */ digits = 1; while (wiphy_idx /= 10) digits++; /* * deny the name if it is phy<idx> where <idx> is printed * without leading zeroes. taken == strlen(newname) here */ if (taken == strlen(PHY_NAME) + digits) return -EINVAL; } /* Ignore nop renames */ if (strcmp(newname, dev_name(&rdev->wiphy.dev)) == 0) return 0; /* Ensure another device does not already have this name. */ list_for_each_entry(rdev2, &cfg80211_rdev_list, list) if (strcmp(newname, dev_name(&rdev2->wiphy.dev)) == 0) return -EINVAL; result = device_rename(&rdev->wiphy.dev, newname); if (result) return result; if (rdev->wiphy.debugfsdir && !debugfs_rename(rdev->wiphy.debugfsdir->d_parent, rdev->wiphy.debugfsdir, rdev->wiphy.debugfsdir->d_parent, newname)) pr_err("failed to rename debugfs dir to %s!\n", newname); nl80211_notify_dev_rename(rdev); return 0; } int cfg80211_switch_netns(struct cfg80211_registered_device *rdev, struct net *net) { struct wireless_dev *wdev; int err = 0; if (!(rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK)) return -EOPNOTSUPP; list_for_each_entry(wdev, &rdev->netdev_list, list) { wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL; err = dev_change_net_namespace(wdev->netdev, net, "wlan%d"); if (err) break; wdev->netdev->features |= NETIF_F_NETNS_LOCAL; } if (err) { /* failed -- clean up to old netns */ net = wiphy_net(&rdev->wiphy); list_for_each_entry_continue_reverse(wdev, &rdev->netdev_list, list) { wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL; err = dev_change_net_namespace(wdev->netdev, net, "wlan%d"); WARN_ON(err); wdev->netdev->features |= NETIF_F_NETNS_LOCAL; } return err; } wiphy_net_set(&rdev->wiphy, net); err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev)); WARN_ON(err); return 0; } static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data) { struct cfg80211_registered_device *rdev = data; rdev->ops->rfkill_poll(&rdev->wiphy); } static int cfg80211_rfkill_set_block(void *data, bool blocked) { struct cfg80211_registered_device *rdev = data; struct wireless_dev *wdev; if (!blocked) return 0; rtnl_lock(); mutex_lock(&rdev->devlist_mtx); list_for_each_entry(wdev, &rdev->netdev_list, list) dev_close(wdev->netdev); mutex_unlock(&rdev->devlist_mtx); rtnl_unlock(); return 0; } static void cfg80211_rfkill_sync_work(struct work_struct *work) { struct cfg80211_registered_device *rdev; rdev = container_of(work, struct cfg80211_registered_device, rfkill_sync); cfg80211_rfkill_set_block(rdev, rfkill_blocked(rdev->rfkill)); } static void cfg80211_event_work(struct work_struct *work) { struct cfg80211_registered_device *rdev; rdev = container_of(work, struct cfg80211_registered_device, event_work); rtnl_lock(); cfg80211_lock_rdev(rdev); cfg80211_process_rdev_events(rdev); cfg80211_unlock_rdev(rdev); rtnl_unlock(); } /* exported functions */ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) { static int wiphy_counter; struct cfg80211_registered_device *rdev; int alloc_size; WARN_ON(ops->add_key && (!ops->del_key || !ops->set_default_key)); WARN_ON(ops->auth && (!ops->assoc || !ops->deauth || !ops->disassoc)); WARN_ON(ops->connect && !ops->disconnect); WARN_ON(ops->join_ibss && !ops->leave_ibss); WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf); WARN_ON(ops->add_station && !ops->del_station); WARN_ON(ops->add_mpath && !ops->del_mpath); WARN_ON(ops->join_mesh && !ops->leave_mesh); alloc_size = sizeof(*rdev) + sizeof_priv; rdev = kzalloc(alloc_size, GFP_KERNEL); if (!rdev) return NULL; rdev->ops = ops; mutex_lock(&cfg80211_mutex); rdev->wiphy_idx = wiphy_counter++; if (unlikely(!wiphy_idx_valid(rdev->wiphy_idx))) { wiphy_counter--; mutex_unlock(&cfg80211_mutex); /* ugh, wrapped! */ kfree(rdev); return NULL; } mutex_unlock(&cfg80211_mutex); /* give it a proper name */ dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx); mutex_init(&rdev->mtx); mutex_init(&rdev->devlist_mtx); mutex_init(&rdev->sched_scan_mtx); INIT_LIST_HEAD(&rdev->netdev_list); spin_lock_init(&rdev->bss_lock); INIT_LIST_HEAD(&rdev->bss_list); INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done); INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results); #ifdef CONFIG_CFG80211_WEXT rdev->wiphy.wext = &cfg80211_wext_handler; #endif device_initialize(&rdev->wiphy.dev); rdev->wiphy.dev.class = &ieee80211_class; rdev->wiphy.dev.platform_data = rdev; #ifdef CONFIG_CFG80211_DEFAULT_PS rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; #endif wiphy_net_set(&rdev->wiphy, &init_net); rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block; rdev->rfkill = rfkill_alloc(dev_name(&rdev->wiphy.dev), &rdev->wiphy.dev, RFKILL_TYPE_WLAN, &rdev->rfkill_ops, rdev); if (!rdev->rfkill) { kfree(rdev); return NULL; } INIT_WORK(&rdev->rfkill_sync, cfg80211_rfkill_sync_work); INIT_WORK(&rdev->conn_work, cfg80211_conn_work); INIT_WORK(&rdev->event_work, cfg80211_event_work); init_waitqueue_head(&rdev->dev_wait); /* * Initialize wiphy parameters to IEEE 802.11 MIB default values. * Fragmentation and RTS threshold are disabled by default with the * special -1 value. */ rdev->wiphy.retry_short = 7; rdev->wiphy.retry_long = 4; rdev->wiphy.frag_threshold = (u32) -1; rdev->wiphy.rts_threshold = (u32) -1; rdev->wiphy.coverage_class = 0; return &rdev->wiphy; } EXPORT_SYMBOL(wiphy_new); static int wiphy_verify_combinations(struct wiphy *wiphy) { const struct ieee80211_iface_combination *c; int i, j; for (i = 0; i < wiphy->n_iface_combinations; i++) { u32 cnt = 0; u16 all_iftypes = 0; c = &wiphy->iface_combinations[i]; /* Combinations with just one interface aren't real */ if (WARN_ON(c->max_interfaces < 2)) return -EINVAL; /* Need at least one channel */ if (WARN_ON(!c->num_different_channels)) return -EINVAL; if (WARN_ON(!c->n_limits)) return -EINVAL; for (j = 0; j < c->n_limits; j++) { u16 types = c->limits[j].types; /* * interface types shouldn't overlap, this is * used in cfg80211_can_change_interface() */ if (WARN_ON(types & all_iftypes)) return -EINVAL; all_iftypes |= types; if (WARN_ON(!c->limits[j].max)) return -EINVAL; /* Shouldn't list software iftypes in combinations! */ if (WARN_ON(wiphy->software_iftypes & types)) return -EINVAL; cnt += c->limits[j].max; /* * Don't advertise an unsupported type * in a combination. */ if (WARN_ON((wiphy->interface_modes & types) != types)) return -EINVAL; } /* You can't even choose that many! */ if (WARN_ON(cnt < c->max_interfaces)) return -EINVAL; } return 0; } int wiphy_register(struct wiphy *wiphy) { struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); int res; enum ieee80211_band band; struct ieee80211_supported_band *sband; bool have_band = false; int i; u16 ifmodes = wiphy->interface_modes; if (WARN_ON((wiphy->wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && !(wiphy->wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY))) return -EINVAL; if (WARN_ON(wiphy->ap_sme_capa && !(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME))) return -EINVAL; if (WARN_ON(wiphy->addresses && !wiphy->n_addresses)) return -EINVAL; if (WARN_ON(wiphy->addresses && !is_zero_ether_addr(wiphy->perm_addr) && memcmp(wiphy->perm_addr, wiphy->addresses[0].addr,