diff options
| -rw-r--r-- | net/mac80211/Makefile | 1 | ||||
| -rw-r--r-- | net/mac80211/ieee80211.c | 3 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 5 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_ioctl.c | 133 | ||||
| -rw-r--r-- | net/mac80211/regdomain.c | 157 |
5 files changed, 164 insertions, 135 deletions
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index e9738da..a9c2d07 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -13,6 +13,7 @@ mac80211-objs := \ ieee80211_iface.o \ ieee80211_rate.o \ michael.o \ + regdomain.o \ tkip.o \ aes_ccm.o \ wme.o \ diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c index 2ddf4ef..6c63dcf 100644 --- a/net/mac80211/ieee80211.c +++ b/net/mac80211/ieee80211.c @@ -5095,7 +5095,7 @@ int ieee80211_register_hwmode(struct ieee80211_hw *hw, } if (!(hw->flags & IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED)) - ieee80211_init_client(local->mdev); + ieee80211_set_default_regdomain(mode); return 0; } @@ -5246,6 +5246,7 @@ static int __init ieee80211_init(void) } ieee80211_debugfs_netdev_init(); + ieee80211_regdomain_init(); return 0; } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 055a2a9..6f7bae7 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -759,7 +759,6 @@ void ieee80211_update_default_wep_only(struct ieee80211_local *local); /* ieee80211_ioctl.c */ int ieee80211_set_compression(struct ieee80211_local *local, struct net_device *dev, struct sta_info *sta); -int ieee80211_init_client(struct net_device *dev); int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq); /* ieee80211_sta.c */ void ieee80211_sta_timer(unsigned long data); @@ -798,6 +797,10 @@ void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); int ieee80211_if_add_mgmt(struct ieee80211_local *local); void ieee80211_if_del_mgmt(struct ieee80211_local *local); +/* regdomain.c */ +void ieee80211_regdomain_init(void); +void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode); + /* for wiphy privid */ extern void *mac80211_wiphy_privid; diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c index 5918dd0..d0e1ab5 100644 --- a/net/mac80211/ieee80211_ioctl.c +++ b/net/mac80211/ieee80211_ioctl.c @@ -27,20 +27,6 @@ #include "aes_ccm.h" #include "debugfs_key.h" -static int ieee80211_regdom = 0x10; /* FCC */ -module_param(ieee80211_regdom, int, 0444); -MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK"); - -/* - * If firmware is upgraded by the vendor, additional channels can be used based - * on the new Japanese regulatory rules. This is indicated by setting - * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel - * module. - */ -static int ieee80211_japan_5ghz /* = 0 */; -module_param(ieee80211_japan_5ghz, int, 0444); -MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz"); - static void ieee80211_set_hw_encryption(struct net_device *dev, struct sta_info *sta, u8 addr[ETH_ALEN], struct ieee80211_key *key) @@ -412,125 +398,6 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev, } -struct ieee80211_channel_range { - short start_freq; - short end_freq; - unsigned char power_level; - unsigned char antenna_max; -}; - -static const struct ieee80211_channel_range ieee80211_fcc_channels[] = { - { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */, - { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */, - { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */, - { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */, - { 0 } -}; - -static const struct ieee80211_channel_range ieee80211_mkk_channels[] = { - { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */, - { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */, - { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */, - { 0 } -}; - - -static const struct ieee80211_channel_range *channel_range = - ieee80211_fcc_channels; - - -static void ieee80211_unmask_channel(struct net_device *dev, int mode, - struct ieee80211_channel *chan) -{ - int i; - - chan->flag = 0; - - if (ieee80211_regdom == 64 && - (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) { - /* Do not allow Turbo modes in Japan. */ - return; - } - - for (i = 0; channel_range[i].start_freq; i++) { - const struct ieee80211_channel_range *r = &channel_range[i]; - if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) { - if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz && - chan->freq >= 5260 && chan->freq <= 5320) { - /* - * Skip new channels in Japan since the - * firmware was not marked having been upgraded - * by the vendor. - */ - continue; - } - - if (ieee80211_regdom == 0x10 && - (chan->freq == 5190 || chan->freq == 5210 || - chan->freq == 5230)) { - /* Skip MKK channels when in FCC domain. */ - continue; - } - - chan->flag |= IEEE80211_CHAN_W_SCAN | - IEEE80211_CHAN_W_ACTIVE_SCAN | - IEEE80211_CHAN_W_IBSS; - chan->power_level = r->power_level; - chan->antenna_max = r->antenna_max; - - if (ieee80211_regdom == 64 && - (chan->freq == 5170 || chan->freq == 5190 || - chan->freq == 5210 || chan->freq == 5230)) { - /* - * New regulatory rules in Japan have backwards - * compatibility with old channels in 5.15-5.25 - * GHz band, but the station is not allowed to - * use active scan on these old channels. - */ - chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN; - } - - if (ieee80211_regdom == 64 && - (chan->freq == 5260 || chan->freq == 5280 || - chan->freq == 5300 || chan->freq == 5320)) { - /* - * IBSS is not allowed on 5.25-5.35 GHz band - * due to radar detection requirements. - */ - chan->flag &= ~IEEE80211_CHAN_W_IBSS; - } - - break; - } - } -} - - -static int ieee80211_unmask_channels(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw_mode *mode; - int c; - - list_for_each_entry(mode, &local->modes_list, list) { - for (c = 0; c < mode->num_channels; c++) { - ieee80211_unmask_channel(dev, mode->mode, - &mode->channels[c]); - } - } - return 0; -} - - -int ieee80211_init_client(struct net_device *dev) -{ - if (ieee80211_regdom == 0x40) - channel_range = ieee80211_mkk_channels; - ieee80211_unmask_channels(dev); - return 0; -} - - static int ieee80211_ioctl_siwmode(struct net_device *dev, struct iw_request_info *info, __u32 *mode, char *extra) diff --git a/net/mac80211/regdomain.c b/net/mac80211/regdomain.c new file mode 100644 index 0000000..32e5dca --- /dev/null +++ b/net/mac80211/regdomain.c @@ -0,0 +1,157 @@ +/* + * Copyright 2002-2005, Instant802 Networks, Inc. + * Copyright 2005-2006, Devicescape Software, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * This regulatory domain control implementation is known to be incomplete + * and confusing. mac80211 regulatory domain control will be significantly + * reworked in the not-too-distant future. + * + * For now, drivers wishing to control which channels are and aren't available + * are advised as follows: + * - set the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag + * - continue to include *ALL* possible channels in the modes registered + * through ieee80211_register_hwmode() + * - for each allowable ieee80211_channel structure registered in the above + * call, set the flag member to some meaningful value such as + * IEEE80211_CHAN_W_SCAN | IEEE80211_CHAN_W_ACTIVE_SCAN | + * IEEE80211_CHAN_W_IBSS. + * - leave flag as 0 for non-allowable channels + * + * The usual implementation is for a driver to read a device EEPROM to + * determine which regulatory domain it should be operating under, then + * looking up the allowable channels in a driver-local table, then performing + * the above. + */ + +#include <linux/module.h> +#include <linux/netdevice.h> +#include <net/mac80211.h> + +static int ieee80211_regdom = 0x10; /* FCC */ +module_param(ieee80211_regdom, int, 0444); +MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK"); + +/* + * If firmware is upgraded by the vendor, additional channels can be used based + * on the new Japanese regulatory rules. This is indicated by setting + * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel + * module. + */ +static int ieee80211_japan_5ghz /* = 0 */; +module_param(ieee80211_japan_5ghz, int, 0444); +MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz"); + + +struct ieee80211_channel_range { + short start_freq; + short end_freq; + unsigned char power_level; + unsigned char antenna_max; +}; + +static const struct ieee80211_channel_range ieee80211_fcc_channels[] = { + { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */, + { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */, + { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */, + { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */, + { 0 } +}; + +static const struct ieee80211_channel_range ieee80211_mkk_channels[] = { + { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */, + { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */, + { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */, + { 0 } +}; + + +static const struct ieee80211_channel_range *channel_range = + ieee80211_fcc_channels; + + +static void ieee80211_unmask_channel(int mode, struct ieee80211_channel *chan) +{ + int i; + + chan->flag = 0; + + if (ieee80211_regdom == 64 && + (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) { + /* Do not allow Turbo modes in Japan. */ + return; + } + + for (i = 0; channel_range[i].start_freq; i++) { + const struct ieee80211_channel_range *r = &channel_range[i]; + if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) { + if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz && + chan->freq >= 5260 && chan->freq <= 5320) { + /* + * Skip new channels in Japan since the + * firmware was not marked having been upgraded + * by the vendor. + */ + continue; + } + + if (ieee80211_regdom == 0x10 && + (chan->freq == 5190 || chan->freq == 5210 || + chan->freq == 5230)) { + /* Skip MKK channels when in FCC domain. */ + continue; + } + + chan->flag |= IEEE80211_CHAN_W_SCAN | + IEEE80211_CHAN_W_ACTIVE_SCAN | + IEEE80211_CHAN_W_IBSS; + chan->power_level = r->power_level; + chan->antenna_max = r->antenna_max; + + if (ieee80211_regdom == 64 && + (chan->freq == 5170 || chan->freq == 5190 || + chan->freq == 5210 || chan->freq == 5230)) { + /* + * New regulatory rules in Japan have backwards + * compatibility with old channels in 5.15-5.25 + * GHz band, but the station is not allowed to + * use active scan on these old channels. + */ + chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN; + } + + if (ieee80211_regdom == 64 && + (chan->freq == 5260 || chan->freq == 5280 || + chan->freq == 5300 || chan->freq == 5320)) { + /* + * IBSS is not allowed on 5.25-5.35 GHz band + * due to radar detection requirements. + */ + chan->flag &= ~IEEE80211_CHAN_W_IBSS; + } + + break; + } + } +} + + +void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode) +{ + int c; + for (c = 0; c < mode->num_channels; c++) + ieee80211_unmask_channel(mode->mode, &mode->channels[c]); +} + + +void ieee80211_regdomain_init(void) +{ + if (ieee80211_regdom == 0x40) + channel_range = ieee80211_mkk_channels; +} + |
