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-rw-r--r--net/wireless/core.c162
-rw-r--r--net/wireless/nl80211.c45
-rw-r--r--net/wireless/reg.c311
-rw-r--r--net/wireless/reg.h39
4 files changed, 255 insertions, 302 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index a910cd2d0fd..5cadbeb76a1 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -29,113 +29,11 @@ MODULE_AUTHOR("Johannes Berg");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("wireless configuration support");
-struct list_head regulatory_requests;
-
-/* Central wireless core regulatory domains, we only need two,
- * the current one and a world regulatory domain in case we have no
- * information to give us an alpha2 */
-struct ieee80211_regdomain *cfg80211_regdomain;
-
-/* We keep a static world regulatory domain in case of the absence of CRDA */
-const struct ieee80211_regdomain world_regdom = {
- .n_reg_rules = 1,
- .alpha2 = "00",
- .reg_rules = {
- REG_RULE(2402, 2472, 40, 6, 20,
- NL80211_RRF_PASSIVE_SCAN |
- NL80211_RRF_NO_IBSS),
- }
-};
-
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
-/* All this fucking static junk will be removed soon, so
- * don't fucking count on it !@#$ */
-
-static char *ieee80211_regdom = "US";
-module_param(ieee80211_regdom, charp, 0444);
-MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
-
-/* We assume 40 MHz bandwidth for the old regulatory work.
- * We make emphasis we are using the exact same frequencies
- * as before */
-
-const struct ieee80211_regdomain us_regdom = {
- .n_reg_rules = 6,
- .alpha2 = "US",
- .reg_rules = {
- /* IEEE 802.11b/g, channels 1..11 */
- REG_RULE(2412-20, 2462+20, 40, 6, 27, 0),
- /* IEEE 802.11a, channel 36 */
- REG_RULE(5180-20, 5180+20, 40, 6, 23, 0),
- /* IEEE 802.11a, channel 40 */
- REG_RULE(5200-20, 5200+20, 40, 6, 23, 0),
- /* IEEE 802.11a, channel 44 */
- REG_RULE(5220-20, 5220+20, 40, 6, 23, 0),
- /* IEEE 802.11a, channels 48..64 */
- REG_RULE(5240-20, 5320+20, 40, 6, 23, 0),
- /* IEEE 802.11a, channels 149..165, outdoor */
- REG_RULE(5745-20, 5825+20, 40, 6, 30, 0),
- }
-};
-
-const struct ieee80211_regdomain jp_regdom = {
- .n_reg_rules = 3,
- .alpha2 = "JP",
- .reg_rules = {
- /* IEEE 802.11b/g, channels 1..14 */
- REG_RULE(2412-20, 2484+20, 40, 6, 20, 0),
- /* IEEE 802.11a, channels 34..48 */
- REG_RULE(5170-20, 5240+20, 40, 6, 20,
- NL80211_RRF_PASSIVE_SCAN),
- /* IEEE 802.11a, channels 52..64 */
- REG_RULE(5260-20, 5320+20, 40, 6, 20,
- NL80211_RRF_NO_IBSS |
- NL80211_RRF_DFS),
- }
-};
-
-const struct ieee80211_regdomain eu_regdom = {
- .n_reg_rules = 6,
- /* This alpha2 is bogus, we leave it here just for stupid
- * backward compatibility */
- .alpha2 = "EU",
- .reg_rules = {
- /* IEEE 802.11b/g, channels 1..13 */
- REG_RULE(2412-20, 2472+20, 40, 6, 20, 0),
- /* IEEE 802.11a, channel 36 */
- REG_RULE(5180-20, 5180+20, 40, 6, 23,
- NL80211_RRF_PASSIVE_SCAN),
- /* IEEE 802.11a, channel 40 */
- REG_RULE(5200-20, 5200+20, 40, 6, 23,
- NL80211_RRF_PASSIVE_SCAN),
- /* IEEE 802.11a, channel 44 */
- REG_RULE(5220-20, 5220+20, 40, 6, 23,
- NL80211_RRF_PASSIVE_SCAN),
- /* IEEE 802.11a, channels 48..64 */
- REG_RULE(5240-20, 5320+20, 40, 6, 20,
- NL80211_RRF_NO_IBSS |
- NL80211_RRF_DFS),
- /* IEEE 802.11a, channels 100..140 */
- REG_RULE(5500-20, 5700+20, 40, 6, 30,
- NL80211_RRF_NO_IBSS |
- NL80211_RRF_DFS),
- }
-};
-
-#endif
-
-struct ieee80211_regdomain *cfg80211_world_regdom =
- (struct ieee80211_regdomain *) &world_regdom;
-
-LIST_HEAD(regulatory_requests);
-DEFINE_MUTEX(cfg80211_reg_mutex);
-
/* RCU might be appropriate here since we usually
* only read the list, and that can happen quite
* often because we need to do it for each command */
LIST_HEAD(cfg80211_drv_list);
DEFINE_MUTEX(cfg80211_drv_mutex);
-static int wiphy_counter;
/* for debugfs */
static struct dentry *ieee80211_debugfs_dir;
@@ -307,6 +205,8 @@ out_unlock:
struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
{
+ static int wiphy_counter;
+
struct cfg80211_registered_device *drv;
int alloc_size;
@@ -323,21 +223,18 @@ struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
mutex_lock(&cfg80211_drv_mutex);
- drv->idx = wiphy_counter;
-
- /* now increase counter for the next device unless
- * it has wrapped previously */
- if (wiphy_counter >= 0)
- wiphy_counter++;
-
- mutex_unlock(&cfg80211_drv_mutex);
+ drv->idx = wiphy_counter++;
if (unlikely(drv->idx < 0)) {
+ wiphy_counter--;
+ mutex_unlock(&cfg80211_drv_mutex);
/* ugh, wrapped! */
kfree(drv);
return NULL;
}
+ mutex_unlock(&cfg80211_drv_mutex);
+
/* give it a proper name */
snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
PHY_NAME "%d", drv->idx);
@@ -485,6 +382,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+ WARN_ON(dev->ieee80211_ptr->iftype == NL80211_IFTYPE_UNSPECIFIED);
+
switch (state) {
case NETDEV_REGISTER:
mutex_lock(&rdev->devlist_mtx);
@@ -514,34 +413,10 @@ static struct notifier_block cfg80211_netdev_notifier = {
.notifier_call = cfg80211_netdev_notifier_call,
};
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
-const struct ieee80211_regdomain *static_regdom(char *alpha2)
-{
- if (alpha2[0] == 'U' && alpha2[1] == 'S')
- return &us_regdom;
- if (alpha2[0] == 'J' && alpha2[1] == 'P')
- return &jp_regdom;
- if (alpha2[0] == 'E' && alpha2[1] == 'U')
- return &eu_regdom;
- /* Default, as per the old rules */
- return &us_regdom;
-}
-#endif
-
static int cfg80211_init(void)
{
int err;
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
- cfg80211_regdomain =
- (struct ieee80211_regdomain *) static_regdom(ieee80211_regdom);
- /* Used during reset_regdomains_static() */
- cfg80211_world_regdom = cfg80211_regdomain;
-#else
- cfg80211_regdomain =
- (struct ieee80211_regdomain *) cfg80211_world_regdom;
-#endif
-
err = wiphy_sysfs_init();
if (err)
goto out_fail_sysfs;
@@ -560,25 +435,6 @@ static int cfg80211_init(void)
if (err)
goto out_fail_reg;
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
- printk(KERN_INFO "cfg80211: Using old static regulatory domain:\n");
- print_regdomain_info(cfg80211_regdomain);
- /* The old code still requests for a new regdomain and if
- * you have CRDA you get it updated, otherwise you get
- * stuck with the static values. We ignore "EU" code as
- * that is not a valid ISO / IEC 3166 alpha2 */
- if (ieee80211_regdom[0] != 'E' &&
- ieee80211_regdom[1] != 'U')
- err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE,
- ieee80211_regdom, NULL);
-#else
- err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE, "00", NULL);
- if (err)
- printk(KERN_ERR "cfg80211: calling CRDA failed - "
- "unable to update world regulatory domain, "
- "using static definition\n");
-#endif
-
return 0;
out_fail_reg:
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1221d726ed5..572793c8c7a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -299,7 +299,7 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
- /* TODO: interface type */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
return genlmsg_end(msg, hdr);
nla_put_failure:
@@ -418,41 +418,56 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
int err, ifindex;
enum nl80211_iftype type;
struct net_device *dev;
- u32 flags;
+ u32 _flags, *flags = NULL;
memset(&params, 0, sizeof(params));
- if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
- return -EINVAL;
- } else
- return -EINVAL;
-
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
return err;
ifindex = dev->ifindex;
+ type = dev->ieee80211_ptr->iftype;
dev_put(dev);
+ err = -EINVAL;
+ if (info->attrs[NL80211_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type > NL80211_IFTYPE_MAX)
+ goto unlock;
+ }
+
if (!drv->ops->change_virtual_intf ||
!(drv->wiphy.interface_modes & (1 << type))) {
err = -EOPNOTSUPP;
goto unlock;
}
- if (type == NL80211_IFTYPE_MESH_POINT &&
- info->attrs[NL80211_ATTR_MESH_ID]) {
+ if (info->attrs[NL80211_ATTR_MESH_ID]) {
+ if (type != NL80211_IFTYPE_MESH_POINT) {
+ err = -EINVAL;
+ goto unlock;
+ }
params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
}
+ if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
+ if (type != NL80211_IFTYPE_MONITOR) {
+ err = -EINVAL;
+ goto unlock;
+ }
+ err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
+ &_flags);
+ if (!err)
+ flags = &_flags;
+ }
rtnl_lock();
- err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
- info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
- &flags);
err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
- type, err ? NULL : &flags, &params);
+ type, flags, &params);
+
+ dev = __dev_get_by_index(&init_net, ifindex);
+ WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
+
rtnl_unlock();
unlock:
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 592b2e391d4..626dbb68849 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -42,6 +42,18 @@
#include "core.h"
#include "reg.h"
+/* wiphy is set if this request's initiator is REGDOM_SET_BY_DRIVER */
+struct regulatory_request {
+ struct list_head list;
+ struct wiphy *wiphy;
+ int granted;
+ enum reg_set_by initiator;
+ char alpha2[2];
+};
+
+static LIST_HEAD(regulatory_requests);
+DEFINE_MUTEX(cfg80211_reg_mutex);
+
/* To trigger userspace events */
static struct platform_device *reg_pdev;
@@ -51,7 +63,156 @@ static u32 supported_bandwidths[] = {
MHZ_TO_KHZ(20),
};
-bool is_world_regdom(char *alpha2)
+static struct list_head regulatory_requests;
+
+/* Central wireless core regulatory domains, we only need two,
+ * the current one and a world regulatory domain in case we have no
+ * information to give us an alpha2 */
+static const struct ieee80211_regdomain *cfg80211_regdomain;
+
+/* We keep a static world regulatory domain in case of the absence of CRDA */
+static const struct ieee80211_regdomain world_regdom = {
+ .n_reg_rules = 1,
+ .alpha2 = "00",
+ .reg_rules = {
+ REG_RULE(2412-10, 2462+10, 40, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN |
+ NL80211_RRF_NO_IBSS),
+ }
+};
+
+static const struct ieee80211_regdomain *cfg80211_world_regdom =
+ &world_regdom;
+
+#ifdef CONFIG_WIRELESS_OLD_REGULATORY
+static char *ieee80211_regdom = "US";
+module_param(ieee80211_regdom, charp, 0444);
+MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
+
+/* We assume 40 MHz bandwidth for the old regulatory work.
+ * We make emphasis we are using the exact same frequencies
+ * as before */
+
+static const struct ieee80211_regdomain us_regdom = {
+ .n_reg_rules = 6,
+ .alpha2 = "US",
+ .reg_rules = {
+ /* IEEE 802.11b/g, channels 1..11 */
+ REG_RULE(2412-10, 2462+10, 40, 6, 27, 0),
+ /* IEEE 802.11a, channel 36 */
+ REG_RULE(5180-10, 5180+10, 40, 6, 23, 0),
+ /* IEEE 802.11a, channel 40 */
+ REG_RULE(5200-10, 5200+10, 40, 6, 23, 0),
+ /* IEEE 802.11a, channel 44 */
+ REG_RULE(5220-10, 5220+10, 40, 6, 23, 0),
+ /* IEEE 802.11a, channels 48..64 */
+ REG_RULE(5240-10, 5320+10, 40, 6, 23, 0),
+ /* IEEE 802.11a, channels 149..165, outdoor */
+ REG_RULE(5745-10, 5825+10, 40, 6, 30, 0),
+ }
+};
+
+static const struct ieee80211_regdomain jp_regdom = {
+ .n_reg_rules = 3,
+ .alpha2 = "JP",
+ .reg_rules = {
+ /* IEEE 802.11b/g, channels 1..14 */
+ REG_RULE(2412-10, 2484+10, 40, 6, 20, 0),
+ /* IEEE 802.11a, channels 34..48 */
+ REG_RULE(5170-10, 5240+10, 40, 6, 20,
+ NL80211_RRF_PASSIVE_SCAN),
+ /* IEEE 802.11a, channels 52..64 */
+ REG_RULE(5260-10, 5320+10, 40, 6, 20,
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_DFS),
+ }
+};
+
+static const struct ieee80211_regdomain eu_regdom = {
+ .n_reg_rules = 6,
+ /* This alpha2 is bogus, we leave it here just for stupid
+ * backward compatibility */
+ .alpha2 = "EU",
+ .reg_rules = {
+ /* IEEE 802.11b/g, channels 1..13 */
+ REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
+ /* IEEE 802.11a, channel 36 */
+ REG_RULE(5180-10, 5180+10, 40, 6, 23,
+ NL80211_RRF_PASSIVE_SCAN),
+ /* IEEE 802.11a, channel 40 */
+ REG_RULE(5200-10, 5200+10, 40, 6, 23,
+ NL80211_RRF_PASSIVE_SCAN),
+ /* IEEE 802.11a, channel 44 */
+ REG_RULE(5220-10, 5220+10, 40, 6, 23,
+ NL80211_RRF_PASSIVE_SCAN),
+ /* IEEE 802.11a, channels 48..64 */
+ REG_RULE(5240-10, 5320+10, 40, 6, 20,
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_DFS),
+ /* IEEE 802.11a, channels 100..140 */
+ REG_RULE(5500-10, 5700+10, 40, 6, 30,
+ NL80211_RRF_NO_IBSS |
+ NL80211_RRF_DFS),
+ }
+};
+
+static const struct ieee80211_regdomain *static_regdom(char *alpha2)
+{
+ if (alpha2[0] == 'U' && alpha2[1] == 'S')
+ return &us_regdom;
+ if (alpha2[0] == 'J' && alpha2[1] == 'P')
+ return &jp_regdom;
+ if (alpha2[0] == 'E' && alpha2[1] == 'U')
+ return &eu_regdom;
+ /* Default, as per the old rules */
+ return &us_regdom;
+}
+
+static bool is_old_static_regdom(const struct ieee80211_regdomain *rd)
+{
+ if (rd == &us_regdom || rd == &jp_regdom || rd == &eu_regdom)
+ return true;
+ return false;
+}
+#else
+static inline bool is_old_static_regdom(const struct ieee80211_regdomain *rd)
+{
+ return false;
+}
+#endif
+
+static void reset_regdomains(void)
+{
+ /* avoid freeing static information or freeing something twice */
+ if (cfg80211_regdomain == cfg80211_world_regdom)
+ cfg80211_regdomain = NULL;
+ if (cfg80211_world_regdom == &world_regdom)
+ cfg80211_world_regdom = NULL;
+ if (cfg80211_regdomain == &world_regdom)
+ cfg80211_regdomain = NULL;
+ if (is_old_static_regdom(cfg80211_regdomain))
+ cfg80211_regdomain = NULL;
+
+ kfree(cfg80211_regdomain);
+ kfree(cfg80211_world_regdom);
+
+ cfg80211_world_regdom = &world_regdom;
+ cfg80211_regdomain = NULL;
+}
+
+/* Dynamic world regulatory domain requested by the wireless
+ * core upon initialization */
+static void update_world_regdomain(const struct ieee80211_regdomain *rd)
+{
+ BUG_ON(list_empty(&regulatory_requests));
+
+ reset_regdomains();
+
+ cfg80211_world_regdom = rd;
+ cfg80211_regdomain = rd;
+}
+
+bool is_world_regdom(const char *alpha2)
{
if (!alpha2)
return false;
@@ -60,7 +221,7 @@ bool is_world_regdom(char *alpha2)
return false;
}
-static bool is_alpha2_set(char *alpha2)
+static bool is_alpha2_set(const char *alpha2)
{
if (!alpha2)
return false;
@@ -77,7 +238,7 @@ static bool is_alpha_upper(char letter)
return false;
}
-static bool is_unknown_alpha2(char *alpha2)
+static bool is_unknown_alpha2(const char *alpha2)
{
if (!alpha2)
return false;
@@ -88,7 +249,7 @@ static bool is_unknown_alpha2(char *alpha2)
return false;
}
-static bool is_an_alpha2(char *alpha2)
+static bool is_an_alpha2(const char *alpha2)
{
if (!alpha2)
return false;
@@ -97,7 +258,7 @@ static bool is_an_alpha2(char *alpha2)
return false;
}
-static bool alpha2_equal(char *alpha2_x, char *alpha2_y)
+static bool alpha2_equal(const char *alpha2_x, const char *alpha2_y)
{
if (!alpha2_x || !alpha2_y)
return false;
@@ -107,7 +268,7 @@ static bool alpha2_equal(char *alpha2_x, char *alpha2_y)
return false;
}
-static bool regdom_changed(char *alpha2)
+static bool regdom_changed(const char *alpha2)
{
if (!cfg80211_regdomain)
return true;
@@ -130,12 +291,8 @@ static int call_crda(const char *alpha2)
printk(KERN_INFO "cfg80211: Calling CRDA for country: %c%c\n",
alpha2[0], alpha2[1]);
else
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
- return -EINVAL;
-#else
printk(KERN_INFO "cfg80211: Calling CRDA to update world "
"regulatory domain\n");
-#endif
country_env[8] = alpha2[0];
country_env[9] = alpha2[1];
@@ -238,7 +395,7 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
}
}
-static bool __reg_is_valid_request(char *alpha2,
+static bool __reg_is_valid_request(const char *alpha2,
struct regulatory_request **request)
{
struct regulatory_request *req;
@@ -254,16 +411,16 @@ static bool __reg_is_valid_request(char *alpha2,
}
/* Used by nl80211 before kmalloc'ing our regulatory domain */
-bool reg_is_valid_request(char *alpha2)
+bool reg_is_valid_request(const char *alpha2)
{
struct regulatory_request *request = NULL;
return __reg_is_valid_request(alpha2, &request);
}
/* Sanity check on a regulatory rule */
-static bool is_valid_reg_rule(struct ieee80211_reg_rule *rule)
+static bool is_valid_reg_rule(const struct ieee80211_reg_rule *rule)
{
- struct ieee80211_freq_range *freq_range = &rule->freq_range;
+ const struct ieee80211_freq_range *freq_range = &rule->freq_range;
u32 freq_diff;
if (freq_range->start_freq_khz == 0 || freq_range->end_freq_khz == 0)
@@ -280,9 +437,9 @@ static bool is_valid_reg_rule(struct ieee80211_reg_rule *rule)
return true;
}
-static bool is_valid_rd(struct ieee80211_regdomain *rd)
+static bool is_valid_rd(const struct ieee80211_regdomain *rd)
{
- struct ieee80211_reg_rule *reg_rule = NULL;
+ const struct ieee80211_reg_rule *reg_rule = NULL;
unsigned int i;
if (!rd->n_reg_rules)
@@ -494,12 +651,12 @@ unlock_and_exit:
EXPORT_SYMBOL(regulatory_hint);
-static void print_rd_rules(struct ieee80211_regdomain *rd)
+static void print_rd_rules(const struct ieee80211_regdomain *rd)
{
unsigned int i;
- struct ieee80211_reg_rule *reg_rule = NULL;
- struct ieee80211_freq_range *freq_range = NULL;
- struct ieee80211_power_rule *power_rule = NULL;
+ const struct ieee80211_reg_rule *reg_rule = NULL;
+ const struct ieee80211_freq_range *freq_range = NULL;
+ const struct ieee80211_power_rule *power_rule = NULL;
printk(KERN_INFO "\t(start_freq - end_freq @ bandwidth), "
"(max_antenna_gain, max_eirp)\n");
@@ -529,7 +686,7 @@ static void print_rd_rules(struct ieee80211_regdomain *rd)
}
}
-static void print_regdomain(struct ieee80211_regdomain *rd)
+static void print_regdomain(const struct ieee80211_regdomain *rd)
{
if (is_world_regdom(rd->alpha2))
@@ -548,85 +705,25 @@ static void print_regdomain(struct ieee80211_regdomain *rd)
print_rd_rules(rd);
}
-void print_regdomain_info(struct ieee80211_regdomain *rd)
+void print_regdomain_info(const struct ieee80211_regdomain *rd)
{
printk(KERN_INFO "cfg80211: Regulatory domain: %c%c\n",
rd->alpha2[0], rd->alpha2[1]);
print_rd_rules(rd);
}
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
-
-static bool is_old_static_regdom(struct ieee80211_regdomain *rd)
-{
- if (rd == &us_regdom || rd == &jp_regdom || rd == &eu_regdom)
- return true;
- return false;
-}
-
-/* The old crap never deals with a world regulatory domain, it only
- * deals with the static regulatory domain passed and if possible
- * an updated "US" or "JP" regulatory domain. We do however store the
- * old static regulatory domain in cfg80211_world_regdom for convenience
- * of use here */
-static void reset_regdomains_static(void)
-{
- if (!is_old_static_regdom(cfg80211_regdomain))
- kfree(cfg80211_regdomain);
- /* This is setting the regdom to the old static regdom */
- cfg80211_regdomain =
- (struct ieee80211_regdomain *) cfg80211_world_regdom;
-}
-#else
-static void reset_regdomains(void)
-{
- if (cfg80211_world_regdom && cfg80211_world_regdom != &world_regdom) {
- if (cfg80211_world_regdom == cfg80211_regdomain) {
- kfree(cfg80211_regdomain);
- } else {
- kfree(cfg80211_world_regdom);
- kfree(cfg80211_regdomain);
- }
- } else if (cfg80211_regdomain && cfg80211_regdomain != &world_regdom)
- kfree(cfg80211_regdomain);
-
- cfg80211_world_regdom = (struct ieee80211_regdomain *) &world_regdom;
- cfg80211_regdomain = NULL;
-}
-
-/* Dynamic world regulatory domain requested by the wireless
- * core upon initialization */
-static void update_world_regdomain(struct ieee80211_regdomain *rd)
-{
- BUG_ON(list_empty(&regulatory_requests));
-
- reset_regdomains();
-
- cfg80211_world_regdom = rd;
- cfg80211_regdomain = rd;
-}
-#endif
-
-static int __set_regdom(struct ieee80211_regdomain *rd)
+static int __set_regdom(const struct ieee80211_regdomain *rd)
{
struct regulatory_request *request = NULL;
/* Some basic sanity checks first */
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
- /* We ignore the world regdom with the old static regdomains setup
- * as there is no point to it with satic regulatory definitions :(
- * Don't worry this shit will be removed soon... */
- if (is_world_regdom(rd->alpha2))
- return -EINVAL;
-#else
if (is_world_regdom(rd->alpha2)) {
if (WARN_ON(!__reg_is_valid_request(rd->alpha2, &request)))
return -EINVAL;
update_world_regdomain(rd);
return 0;
}
-#endif
if (!is_alpha2_set(rd->alpha2) && !is_an_alpha2(rd->alpha2) &&
!is_unknown_alpha2(rd->alpha2))
@@ -635,15 +732,10 @@ static int __set_regdom(struct ieee80211_regdomain *rd)
if (list_empty(&regulatory_requests))
return -EINVAL;
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
- /* Static "US" and "JP" will be overridden, but just once */
+ /* allow overriding the static definitions if CRDA is present */
if (!is_old_static_regdom(cfg80211_regdomain) &&
- !regdom_changed(rd->alpha2))
- return -EINVAL;
-#else
- if (!regdom_changed(rd->alpha2))
+ !regdom_changed(rd->alpha2))
return -EINVAL;
-#endif
/* Now lets set the regulatory domain, update all driver channels
* and finally inform them of what we have done, in case they want
@@ -653,11 +745,7 @@ static int __set_regdom(struct ieee80211_regdomain *rd)
if (WARN_ON(!__reg_is_valid_request(rd->alpha2, &request)))
return -EINVAL;
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
- reset_regdomains_static();
-#else
reset_regdomains();
-#endif
/* Country IE parsing coming soon */
switch (request->initiator) {
@@ -689,7 +777,7 @@ static int __set_regdom(struct ieee80211_regdomain *rd)
* multiple drivers can be ironed out later. Caller must've already
* kmalloc'd the rd structure. If this calls fails you should kfree()
* the passed rd. Caller must hold cfg80211_drv_mutex */
-int set_regdom(struct ieee80211_regdomain *rd)
+int set_regdom(const struct ieee80211_regdomain *rd)
{
struct regulatory_request *this_request = NULL, *prev_request = NULL;
int r;
@@ -735,25 +823,50 @@ int set_regdom(struct ieee80211_regdomain *rd)
int regulatory_init(void)
{
+ int err;
+
reg_pdev = platform_device_register_simple("regulatory", 0, NULL, 0);
if (IS_ERR(reg_pdev))
return PTR_ERR(reg_pdev);
+
+#ifdef CONFIG_WIRELESS_OLD_REGULATORY
+ cfg80211_regdomain = static_regdom(ieee80211_regdom);
+
+ printk(KERN_INFO "cfg80211: Using static regulatory domain info\n");
+ print_regdomain_info(cfg80211_regdomain);
+ /* The old code still requests for a new regdomain and if
+ * you have CRDA you get it updated, otherwise you get
+ * stuck with the static values. We ignore "EU" code as
+ * that is not a valid ISO / IEC 3166 alpha2 */
+ if (ieee80211_regdom[0] != 'E' && ieee80211_regdom[1] != 'U')
+ err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE,
+ ieee80211_regdom, NULL);
+#else
+ cfg80211_regdomain = cfg80211_world_regdom;
+
+ err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE, "00", NULL);
+ if (err)
+ printk(KERN_ERR "cfg80211: calling CRDA failed - "
+ "unable to update world regulatory domain, "
+ "using static definition\n");
+#endif
+
return 0;
}
void regulatory_exit(void)
{
struct regulatory_request *req, *req_tmp;
+
mutex_lock(&cfg80211_drv_mutex);
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
- reset_regdomains_static();
-#else
+
reset_regdomains();
-#endif
+
list_for_each_entry_safe(req, req_tmp, &regulatory_requests, list) {
list_del(&req->list);
kfree(req);
}
platform_device_unregister(reg_pdev);
+
mutex_unlock(&cfg80211_drv_mutex);
}
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index d75fd023297..a33362872f3 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -1,44 +1,13 @@
#ifndef __NET_WIRELESS_REG_H
#define __NET_WIRELESS_REG_H
-extern const struct ieee80211_regdomain world_regdom;
-#ifdef CONFIG_WIRELESS_OLD_REGULATORY
-extern const struct ieee80211_regdomain us_regdom;
-extern const struct ieee80211_regdomain jp_regdom;
-extern const struct ieee80211_regdomain eu_regdom;
-#endif
-
-extern struct ieee80211_regdomain *cfg80211_regdomain;
-extern struct ieee80211_regdomain *cfg80211_world_regdom;
-extern struct list_head regulatory_requests;
-
-struct regdom_last_setby {
- struct wiphy *wiphy;
- u8 initiator;
-};
-
-/* wiphy is set if this request's initiator is REGDOM_SET_BY_DRIVER */
-struct regulatory_request {
- struct list_head list;
- struct wiphy *wiphy;
- int granted;
- enum reg_set_by initiator;
- char alpha2[2];
-};
-
-bool is_world_regdom(char *alpha2);
-bool reg_is_valid_request(char *alpha2);
-
-int set_regdom(struct ieee80211_regdomain *rd);
-int __regulatory_hint_alpha2(struct wiphy *wiphy, enum reg_set_by set_by,
- const char *alpha2);
+extern struct mutex cfg80211_reg_mutex;
+bool is_world_regdom(const char *alpha2);
+bool reg_is_valid_request(const char *alpha2);
int regulatory_init(void);
void regulatory_exit(void);
-void print_regdomain_info(struct ieee80211_regdomain *);
-
-/* If a char is A-Z */
-#define IS_ALPHA(letter) (letter >= 65 && letter <= 90)
+int set_regdom(const struct ieee80211_regdomain *rd);
#endif /* __NET_WIRELESS_REG_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-02 11:51:26 +0000