Quelle regulatory.h
Sprache: C
#ifndef __NET_REGULATORY_H
#define __NET_REGULATORY_H
/*
* regulatory support structures
*
* Copyright 2008 - 2009 Luis R . Rodriguez < mcgrof @ qca . qualcomm . com >
* Copyright ( C ) 2018 Intel Corporation
*
* Permission to use , copy , modify , and / or distribute this software for any
* purpose with or without fee is hereby granted , provided that the above
* copyright notice and this permission notice appear in all copies .
*
* THE SOFTWARE IS PROVIDED " AS IS " AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS . IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL , DIRECT , INDIRECT , OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE , DATA OR PROFITS , WHETHER IN AN
* ACTION OF CONTRACT , NEGLIGENCE OR OTHER TORTIOUS ACTION , ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE .
*/
#include <linux/ieee80211.h>
#include <linux/nl80211.h>
#include <linux/rcupdate.h>
/**
* enum environment_cap - Environment parsed from country IE
* @ ENVIRON_ANY : indicates country IE applies to both indoor and
* outdoor operation .
* @ ENVIRON_INDOOR : indicates country IE applies only to indoor operation
* @ ENVIRON_OUTDOOR : indicates country IE applies only to outdoor operation
*/
enum environment_cap {
ENVIRON_ANY,
ENVIRON_INDOOR,
ENVIRON_OUTDOOR,
};
/**
* struct regulatory_request - used to keep track of regulatory requests
*
* @ rcu_head : RCU head struct used to free the request
* @ wiphy_idx : this is set if this request ' s initiator is
* % REGDOM_SET_BY_COUNTRY_IE or % REGDOM_SET_BY_DRIVER . This
* can be used by the wireless core to deal with conflicts
* and potentially inform users of which devices specifically
* cased the conflicts .
* @ initiator : indicates who sent this request , could be any of
* those set in nl80211_reg_initiator ( % NL80211_REGDOM_SET_BY_ * )
* @ alpha2 : the ISO / IEC 3166 alpha2 country code of the requested
* regulatory domain . We have a few special codes :
* 00 - World regulatory domain
* 99 - built by driver but a specific alpha2 cannot be determined
* 98 - result of an intersection between two regulatory domains
* 97 - regulatory domain has not yet been configured
* @ dfs_region : If CRDA responded with a regulatory domain that requires
* DFS master operation on a known DFS region ( NL80211_DFS_ * ) ,
* dfs_region represents that region . Drivers can use this and the
* @ alpha2 to adjust their device ' s DFS parameters as required .
* @ user_reg_hint_type : if the @ initiator was of type
* % NL80211_REGDOM_SET_BY_USER , this classifies the type
* of hint passed . This could be any of the % NL80211_USER_REG_HINT_ *
* types .
* @ intersect : indicates whether the wireless core should intersect
* the requested regulatory domain with the presently set regulatory
* domain .
* @ processed : indicates whether or not this requests has already been
* processed . When the last request is processed it means that the
* currently regulatory domain set on cfg80211 is updated from
* CRDA and can be used by other regulatory requests . When a
* the last request is not yet processed we must yield until it
* is processed before processing any new requests .
* @ country_ie_env : lets us know if the AP is telling us we are outdoor ,
* indoor , or if it doesn ' t matter
* @ list : used to insert into the reg_requests_list linked list
*/
struct regulatory_request {
struct rcu_head rcu_head;
int wiphy_idx;
enum nl80211_reg_initiator initiator;
enum nl80211_user_reg_hint_type user_reg_hint_type;
char alpha2[3 ];
enum nl80211_dfs_regions dfs_region;
bool intersect;
bool processed;
enum environment_cap country_ie_env;
struct list_head list;
};
/**
* enum ieee80211_regulatory_flags - device regulatory flags
*
* @ REGULATORY_CUSTOM_REG : tells us the driver for this device
* has its own custom regulatory domain and cannot identify the
* ISO / IEC 3166 alpha2 it belongs to . When this is enabled
* we will disregard the first regulatory hint ( when the
* initiator is % REGDOM_SET_BY_CORE ) . Drivers that use
* wiphy_apply_custom_regulatory ( ) should have this flag set
* or the regulatory core will set it for the wiphy .
* If you use regulatory_hint ( ) * after * using
* wiphy_apply_custom_regulatory ( ) the wireless core will
* clear the REGULATORY_CUSTOM_REG for your wiphy as it would be
* implied that the device somehow gained knowledge of its region .
* @ REGULATORY_STRICT_REG : tells us that the wiphy for this device
* has regulatory domain that it wishes to be considered as the
* superset for regulatory rules . After this device gets its regulatory
* domain programmed further regulatory hints shall only be considered
* for this device to enhance regulatory compliance , forcing the
* device to only possibly use subsets of the original regulatory
* rules . For example if channel 13 and 14 are disabled by this
* device ' s regulatory domain no user specified regulatory hint which
* has these channels enabled would enable them for this wiphy ,
* the device ' s original regulatory domain will be trusted as the
* base . You can program the superset of regulatory rules for this
* wiphy with regulatory_hint ( ) for cards programmed with an
* ISO3166 - alpha2 country code . wiphys that use regulatory_hint ( )
* will have their wiphy - > regd programmed once the regulatory
* domain is set , and all other regulatory hints will be ignored
* until their own regulatory domain gets programmed .
* @ REGULATORY_DISABLE_BEACON_HINTS : enable this if your driver needs to
* ensure that passive scan flags and beaconing flags may not be lifted by
* cfg80211 due to regulatory beacon hints . For more information on beacon
* hints read the documentation for regulatory_hint_found_beacon ( )
* @ REGULATORY_COUNTRY_IE_FOLLOW_POWER : for devices that have a preference
* that even though they may have programmed their own custom power
* setting prior to wiphy registration , they want to ensure their channel
* power settings are updated for this connection with the power settings
* derived from the regulatory domain . The regulatory domain used will be
* based on the ISO3166 - alpha2 from country IE provided through
* regulatory_hint_country_ie ( )
* @ REGULATORY_COUNTRY_IE_IGNORE : for devices that have a preference to ignore
* all country IE information processed by the regulatory core . This will
* override % REGULATORY_COUNTRY_IE_FOLLOW_POWER as all country IEs will
* be ignored .
* @ REGULATORY_ENABLE_RELAX_NO_IR : for devices that wish to allow the
* NO_IR relaxation , which enables transmissions on channels on which
* otherwise initiating radiation is not allowed . This will enable the
* relaxations enabled under the CFG80211_REG_RELAX_NO_IR configuration
* option
* @ REGULATORY_WIPHY_SELF_MANAGED : for devices that employ wiphy - specific
* regdom management . These devices will ignore all regdom changes not
* originating from their own wiphy .
* A self - managed wiphys only employs regulatory information obtained from
* the FW and driver and does not use other cfg80211 sources like
* beacon - hints , country - code IEs and hints from other devices on the same
* system . Conversely , a self - managed wiphy does not share its regulatory
* hints with other devices in the system . If a system contains several
* devices , one or more of which are self - managed , there might be
* contradictory regulatory settings between them . Usage of flag is
* generally discouraged . Only use it if the FW / driver is incompatible
* with non - locally originated hints .
* This flag is incompatible with the flags : % REGULATORY_CUSTOM_REG ,
* % REGULATORY_STRICT_REG , % REGULATORY_COUNTRY_IE_FOLLOW_POWER ,
* % REGULATORY_COUNTRY_IE_IGNORE and % REGULATORY_DISABLE_BEACON_HINTS .
* Mixing any of the above flags with this flag will result in a failure
* to register the wiphy . This flag implies
* % REGULATORY_DISABLE_BEACON_HINTS and % REGULATORY_COUNTRY_IE_IGNORE .
*/
enum ieee80211_regulatory_flags {
REGULATORY_CUSTOM_REG = BIT(0 ),
REGULATORY_STRICT_REG = BIT(1 ),
REGULATORY_DISABLE_BEACON_HINTS = BIT(2 ),
REGULATORY_COUNTRY_IE_FOLLOW_POWER = BIT(3 ),
REGULATORY_COUNTRY_IE_IGNORE = BIT(4 ),
REGULATORY_ENABLE_RELAX_NO_IR = BIT(5 ),
/* reuse bit 6 next time */
REGULATORY_WIPHY_SELF_MANAGED = BIT(7 ),
};
struct ieee80211_freq_range {
u32 start_freq_khz;
u32 end_freq_khz;
u32 max_bandwidth_khz;
};
struct ieee80211_power_rule {
u32 max_antenna_gain;
u32 max_eirp;
};
/**
* struct ieee80211_wmm_ac - used to store per ac wmm regulatory limitation
*
* The information provided in this structure is required for QoS
* transmit queue configuration . Cf . IEEE 802 . 11 7 . 3 . 2 . 29 .
*
* @ cw_min : minimum contention window [ a value of the form
* 2 ^ n - 1 in the range 1 . . 32767 ]
* @ cw_max : maximum contention window [ like @ cw_min ]
* @ cot : maximum burst time in units of 32 usecs , 0 meaning disabled
* @ aifsn : arbitration interframe space [ 0 . . 255 ]
*
*/
struct ieee80211_wmm_ac {
u16 cw_min;
u16 cw_max;
u16 cot;
u8 aifsn;
};
struct ieee80211_wmm_rule {
struct ieee80211_wmm_ac client[IEEE80211_NUM_ACS];
struct ieee80211_wmm_ac ap[IEEE80211_NUM_ACS];
};
struct ieee80211_reg_rule {
struct ieee80211_freq_range freq_range;
struct ieee80211_power_rule power_rule;
struct ieee80211_wmm_rule wmm_rule;
u32 flags;
u32 dfs_cac_ms;
bool has_wmm;
s8 psd;
};
struct ieee80211_regdomain {
struct rcu_head rcu_head;
u32 n_reg_rules;
char alpha2[3 ];
enum nl80211_dfs_regions dfs_region;
struct ieee80211_reg_rule reg_rules[];
};
#define REG_RULE_EXT(start, end, bw, gain, eirp, dfs_cac, reg_flags) \
{ \
.freq_range.start_freq_khz = MHZ_TO_KHZ(start), \
.freq_range.end_freq_khz = MHZ_TO_KHZ(end), \
.freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \
.power_rule.max_antenna_gain = DBI_TO_MBI(gain), \
.power_rule.max_eirp = DBM_TO_MBM(eirp), \
.flags = reg_flags, \
.dfs_cac_ms = dfs_cac, \
}
#define REG_RULE(start, end, bw, gain, eirp, reg_flags) \
REG_RULE_EXT(start, end, bw, gain, eirp, 0 , reg_flags)
#endif
Messung V0.5 in Prozent C=98 H=100 G=98
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland
2026-10-10
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