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cfg80211: clean up regulatory mess

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The recent code from Luis is an #ifdef hell and contains lots of
code that's stuffed into the wrong file making a whole bunch of
things needlessly non-static, and besides, what is it doing in
core.c??

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2008-09-15 10:56:48 +02:00
committed by John W. Linville
parent 762af43bda
commit 734366deae
3 changed files with 203 additions and 230 deletions
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144
net/wireless/core.c
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@@ -29,107 +29,6 @@ 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(2412-10, 2462+10, 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(2412-10, 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),
}
};
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),
}
};
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),
}
};
#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 */
@@ -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: