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nl80211: add scan width to bss and scan request structs

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To allow scanning and working with 5 MHz and 10 MHz BSS, extend the
inform bss commands and add wrappers to take 5 and 10 MHz bss into
account.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
This commit is contained in:
Simon Wunderlich 2013-07-08 16:55:49 +02:00 • committed by Johannes Berg
parent be29b99a9b
commit dcd6eac1f3
5 changed files with 97 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

54
include/net/cfg80211.h
View file

@ -1285,6 +1285,7 @@ struct cfg80211_ssid {
* @n_ssids: number of SSIDs
* @channels: channels to scan on.
* @n_channels: total number of channels to scan
* @scan_width: channel width for scanning
* @ie: optional information element(s) to add into Probe Request or %NULL
* @ie_len: length of ie in octets
* @flags: bit field of flags controlling operation
@ -1300,6 +1301,7 @@ struct cfg80211_scan_request {
struct cfg80211_ssid *ssids;
int n_ssids;
u32 n_channels;
enum nl80211_bss_scan_width scan_width;
const u8 *ie;
size_t ie_len;
u32 flags;
@ -1333,6 +1335,7 @@ struct cfg80211_match_set {
* @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
* @n_ssids: number of SSIDs
* @n_channels: total number of channels to scan
* @scan_width: channel width for scanning
* @interval: interval between each scheduled scan cycle
* @ie: optional information element(s) to add into Probe Request or %NULL
* @ie_len: length of ie in octets
@ -1352,6 +1355,7 @@ struct cfg80211_sched_scan_request {
struct cfg80211_ssid *ssids;
int n_ssids;
u32 n_channels;
enum nl80211_bss_scan_width scan_width;
u32 interval;
const u8 *ie;
size_t ie_len;
@ -1403,6 +1407,7 @@ struct cfg80211_bss_ies {
* for use in scan results and similar.
*
* @channel: channel this BSS is on
* @scan_width: width of the control channel
* @bssid: BSSID of the BSS
* @beacon_interval: the beacon interval as from the frame
* @capability: the capability field in host byte order
@ -1424,6 +1429,7 @@ struct cfg80211_bss_ies {
*/
struct cfg80211_bss {
struct ieee80211_channel *channel;
enum nl80211_bss_scan_width scan_width;
const struct cfg80211_bss_ies __rcu *ies;
const struct cfg80211_bss_ies __rcu *beacon_ies;
@ -3438,10 +3444,11 @@ void cfg80211_sched_scan_results(struct wiphy *wiphy);
void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
/**
* cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
* cfg80211_inform_bss_width_frame - inform cfg80211 of a received BSS frame
*
* @wiphy: the wiphy reporting the BSS
* @channel: The channel the frame was received on
* @scan_width: width of the control channel
* @mgmt: the management frame (probe response or beacon)
* @len: length of the management frame
* @signal: the signal strength, type depends on the wiphy's signal_type
@ -3454,16 +3461,29 @@ void cfg80211_sched_scan_stopped(struct wiphy *wiphy);
* Or %NULL on error.
*/
struct cfg80211_bss * __must_check
cfg80211_inform_bss_width_frame(struct wiphy *wiphy,
struct ieee80211_channel *channel,
enum nl80211_bss_scan_width scan_width,
struct ieee80211_mgmt *mgmt, size_t len,
s32 signal, gfp_t gfp);
static inline struct cfg80211_bss * __must_check
cfg80211_inform_bss_frame(struct wiphy *wiphy,
struct ieee80211_channel *channel,
struct ieee80211_mgmt *mgmt, size_t len,
s32 signal, gfp_t gfp);
s32 signal, gfp_t gfp)
{
return cfg80211_inform_bss_width_frame(wiphy, channel,
NL80211_BSS_CHAN_WIDTH_20,
mgmt, len, signal, gfp);
}
/**
* cfg80211_inform_bss - inform cfg80211 of a new BSS
*
* @wiphy: the wiphy reporting the BSS
* @channel: The channel the frame was received on
* @scan_width: width of the control channel
* @bssid: the BSSID of the BSS
* @tsf: the TSF sent by the peer in the beacon/probe response (or 0)
* @capability: the capability field sent by the peer
@ -3480,11 +3500,26 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
* Or %NULL on error.
*/
struct cfg80211_bss * __must_check
cfg80211_inform_bss_width(struct wiphy *wiphy,
struct ieee80211_channel *channel,
enum nl80211_bss_scan_width scan_width,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp);
static inline struct cfg80211_bss * __must_check
cfg80211_inform_bss(struct wiphy *wiphy,
struct ieee80211_channel *channel,
const u8 *bssid, u64 tsf, u16 capability,
u16 beacon_interval, const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp);
s32 signal, gfp_t gfp)
{
return cfg80211_inform_bss_width(wiphy, channel,
NL80211_BSS_CHAN_WIDTH_20,
bssid, tsf, capability,
beacon_interval, ie, ielen, signal,
gfp);
}
struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
struct ieee80211_channel *channel,
@ -3530,6 +3565,19 @@ void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
*/
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
static inline enum nl80211_bss_scan_width
cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def *chandef)
{
switch (chandef->width) {
case NL80211_CHAN_WIDTH_5:
return NL80211_BSS_CHAN_WIDTH_5;
case NL80211_CHAN_WIDTH_10:
return NL80211_BSS_CHAN_WIDTH_10;
default:
return NL80211_BSS_CHAN_WIDTH_20;
}
}
/**
* cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
* @dev: network device