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cfg80211: add bss_type and privacy arguments in cfg80211_get_bss()

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802.11ad adds new a network type (PBSS) and changes the capability
field interpretation for the DMG (60G) band.
The same 2 bits that were interpreted as "ESS" and "IBSS" before are
re-used as a 2-bit field with 3 valid values (and 1 reserved). Valid
values are: "IBSS", "PBSS" (new) and "AP".

In order to get the BSS struct for the new PBSS networks, change the
cfg80211_get_bss() function to take a new enum ieee80211_bss_type
argument with the valid network types, as "capa_mask" and "capa_val"
no longer work correctly (the search must be band-aware now.)

The remaining bits in "capa_mask" and "capa_val" are used only for
privacy matching so replace those two with a privacy enum as well.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
[rewrite commit log, tiny fixes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Dedy Lansky 2015-02-08 15:52:03 +02:00 • committed by Johannes Berg
parent 76a70e9c4b
commit 6eb1813764
13 changed files with 167 additions and 79 deletions
Download patch file Download diff file Expand all files Collapse all files

39
include/net/cfg80211.h
View file

@ -214,6 +214,39 @@ enum ieee80211_rate_flags {
IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6,
};
/**
* enum ieee80211_bss_type - BSS type filter
*
* @IEEE80211_BSS_TYPE_ESS: Infrastructure BSS
* @IEEE80211_BSS_TYPE_PBSS: Personal BSS
* @IEEE80211_BSS_TYPE_IBSS: Independent BSS
* @IEEE80211_BSS_TYPE_MBSS: Mesh BSS
* @IEEE80211_BSS_TYPE_ANY: Wildcard value for matching any BSS type
*/
enum ieee80211_bss_type {
IEEE80211_BSS_TYPE_ESS,
IEEE80211_BSS_TYPE_PBSS,
IEEE80211_BSS_TYPE_IBSS,
IEEE80211_BSS_TYPE_MBSS,
IEEE80211_BSS_TYPE_ANY
};
/**
* enum ieee80211_privacy - BSS privacy filter
*
* @IEEE80211_PRIVACY_ON: privacy bit set
* @IEEE80211_PRIVACY_OFF: privacy bit clear
* @IEEE80211_PRIVACY_ANY: Wildcard value for matching any privacy setting
*/
enum ieee80211_privacy {
IEEE80211_PRIVACY_ON,
IEEE80211_PRIVACY_OFF,
IEEE80211_PRIVACY_ANY
};
#define IEEE80211_PRIVACY(x) \
((x) ? IEEE80211_PRIVACY_ON : IEEE80211_PRIVACY_OFF)
/**
* struct ieee80211_rate - bitrate definition
*
@ -4012,14 +4045,16 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
struct ieee80211_channel *channel,
const u8 *bssid,
const u8 *ssid, size_t ssid_len,
u16 capa_mask, u16 capa_val);
enum ieee80211_bss_type bss_type,
enum ieee80211_privacy);
static inline struct cfg80211_bss *
cfg80211_get_ibss(struct wiphy *wiphy,
struct ieee80211_channel *channel,
const u8 *ssid, size_t ssid_len)
{
return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
IEEE80211_BSS_TYPE_IBSS,
IEEE80211_PRIVACY_ANY);
}
/**