#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
+#include <linux/export.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/random.h>
#include <linux/ctype.h>
#include <linux/nl80211.h>
#include <linux/platform_device.h>
+#include <linux/moduleparam.h>
#include <net/cfg80211.h>
#include "core.h"
#include "reg.h"
#include "nl80211.h"
#ifdef CONFIG_CFG80211_REG_DEBUG
-#define REG_DBG_PRINT(format, args...) \
- do { \
- printk(KERN_DEBUG pr_fmt(format), ##args); \
- } while (0)
+#define REG_DBG_PRINT(format, args...) \
+ printk(KERN_DEBUG pr_fmt(format), ##args)
#else
#define REG_DBG_PRINT(args...)
#endif
+static struct regulatory_request core_request_world = {
+ .initiator = NL80211_REGDOM_SET_BY_CORE,
+ .alpha2[0] = '0',
+ .alpha2[1] = '0',
+ .intersect = false,
+ .processed = true,
+ .country_ie_env = ENVIRON_ANY,
+};
+
/* Receipt of information from last regulatory request */
-static struct regulatory_request *last_request;
+static struct regulatory_request *last_request = &core_request_world;
/* To trigger userspace events */
static struct platform_device *reg_pdev;
module_param(ieee80211_regdom, charp, 0444);
MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
-static void reset_regdomains(void)
+static void reset_regdomains(bool full_reset)
{
/* avoid freeing static information or freeing something twice */
if (cfg80211_regdomain == cfg80211_world_regdom)
cfg80211_world_regdom = &world_regdom;
cfg80211_regdomain = NULL;
+
+ if (!full_reset)
+ return;
+
+ if (last_request != &core_request_world)
+ kfree(last_request);
+ last_request = &core_request_world;
}
/*
{
BUG_ON(!last_request);
- reset_regdomains();
+ reset_regdomains(false);
cfg80211_world_regdom = rd;
cfg80211_regdomain = rd;
chan->center_freq,
KHZ_TO_MHZ(desired_bw_khz));
- REG_DBG_PRINT("%d KHz - %d KHz @ KHz), (%s mBi, %d mBm)\n",
+ REG_DBG_PRINT("%d KHz - %d KHz @ %d KHz), (%s mBi, %d mBm)\n",
freq_range->start_freq_khz,
freq_range->end_freq_khz,
+ freq_range->max_bandwidth_khz,
max_antenna_gain,
power_rule->max_eirp);
}
wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) {
REG_DBG_PRINT("Ignoring regulatory request %s "
"since the driver uses its own custom "
- "regulatory domain ",
+ "regulatory domain\n",
reg_initiator_name(initiator));
return true;
}
!is_world_regdom(last_request->alpha2)) {
REG_DBG_PRINT("Ignoring regulatory request %s "
"since the driver requires its own regulatory "
- "domain to be set first",
+ "domain to be set first\n",
reg_initiator_name(initiator));
return true;
}
return false;
}
-static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
-{
- struct cfg80211_registered_device *rdev;
-
- list_for_each_entry(rdev, &cfg80211_rdev_list, list)
- wiphy_update_regulatory(&rdev->wiphy, initiator);
-}
-
static void handle_reg_beacon(struct wiphy *wiphy,
unsigned int chan_idx,
struct reg_beacon *reg_beacon)
}
-void wiphy_update_regulatory(struct wiphy *wiphy,
- enum nl80211_reg_initiator initiator)
+static void wiphy_update_regulatory(struct wiphy *wiphy,
+ enum nl80211_reg_initiator initiator)
{
enum ieee80211_band band;
+ assert_reg_lock();
+
if (ignore_reg_update(wiphy, initiator))
return;
+ last_request->dfs_region = cfg80211_regdomain->dfs_region;
+
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (wiphy->bands[band])
handle_band(wiphy, band, initiator);
wiphy->reg_notifier(wiphy, last_request);
}
+void regulatory_update(struct wiphy *wiphy,
+ enum nl80211_reg_initiator setby)
+{
+ mutex_lock(®_mutex);
+ wiphy_update_regulatory(wiphy, setby);
+ mutex_unlock(®_mutex);
+}
+
+static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
+{
+ struct cfg80211_registered_device *rdev;
+
+ list_for_each_entry(rdev, &cfg80211_rdev_list, list)
+ wiphy_update_regulatory(&rdev->wiphy, initiator);
+}
+
static void handle_channel_custom(struct wiphy *wiphy,
enum ieee80211_band band,
unsigned int chan_idx,
}
new_request:
- kfree(last_request);
+ if (last_request != &core_request_world)
+ kfree(last_request);
last_request = pending_request;
last_request->intersect = intersect;
/* When last_request->processed becomes true this will be rescheduled */
if (last_request && !last_request->processed) {
REG_DBG_PRINT("Pending regulatory request, waiting "
- "for it to be processed...");
+ "for it to be processed...\n");
goto out;
}
{
struct regulatory_request *request;
- kfree(last_request);
- last_request = NULL;
-
request = kzalloc(sizeof(struct regulatory_request),
GFP_KERNEL);
if (!request)
mutex_lock(&cfg80211_mutex);
mutex_lock(®_mutex);
- reset_regdomains();
+ reset_regdomains(true);
restore_alpha2(alpha2, reset_user);
/*
}
}
+bool reg_supported_dfs_region(u8 dfs_region)
+{
+ switch (dfs_region) {
+ case NL80211_DFS_UNSET:
+ case NL80211_DFS_FCC:
+ case NL80211_DFS_ETSI:
+ case NL80211_DFS_JP:
+ return true;
+ default:
+ REG_DBG_PRINT("Ignoring uknown DFS master region: %d\n",
+ dfs_region);
+ return false;
+ }
+}
+
+static void print_dfs_region(u8 dfs_region)
+{
+ if (!dfs_region)
+ return;
+
+ switch (dfs_region) {
+ case NL80211_DFS_FCC:
+ pr_info(" DFS Master region FCC");
+ break;
+ case NL80211_DFS_ETSI:
+ pr_info(" DFS Master region ETSI");
+ break;
+ case NL80211_DFS_JP:
+ pr_info(" DFS Master region JP");
+ break;
+ default:
+ pr_info(" DFS Master region Uknown");
+ break;
+ }
+}
+
static void print_regdomain(const struct ieee80211_regdomain *rd)
{
pr_info("Regulatory domain changed to country: %c%c\n",
rd->alpha2[0], rd->alpha2[1]);
}
+ print_dfs_region(rd->dfs_region);
print_rd_rules(rd);
}
}
request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+ if (!request_wiphy &&
+ (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER ||
+ last_request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE)) {
+ schedule_delayed_work(®_timeout, 0);
+ return -ENODEV;
+ }
if (!last_request->intersect) {
int r;
if (last_request->initiator != NL80211_REGDOM_SET_BY_DRIVER) {
- reset_regdomains();
+ reset_regdomains(false);
cfg80211_regdomain = rd;
return 0;
}
if (r)
return r;
- reset_regdomains();
+ reset_regdomains(false);
cfg80211_regdomain = rd;
return 0;
}
rd = NULL;
- reset_regdomains();
+ reset_regdomains(false);
cfg80211_regdomain = intersected_rd;
return 0;
kfree(rd);
rd = NULL;
- reset_regdomains();
+ reset_regdomains(false);
cfg80211_regdomain = intersected_rd;
return 0;
static void reg_timeout_work(struct work_struct *work)
{
REG_DBG_PRINT("Timeout while waiting for CRDA to reply, "
- "restoring regulatory settings");
+ "restoring regulatory settings\n");
restore_regulatory_settings(true);
}
mutex_lock(&cfg80211_mutex);
mutex_lock(®_mutex);
- reset_regdomains();
+ reset_regdomains(true);
- kfree(last_request);
+ dev_set_uevent_suppress(®_pdev->dev, true);
platform_device_unregister(reg_pdev);