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| author | Luciano Coelho <coelho@ti.com> | 2011-08-31 16:01:48 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-09-13 15:53:45 -0400 |
| commit | a1f1c21c181be20a8b7e073e5292ff1fe77769fa (patch) | |
| tree | 8b8e46d1dba26f4ef45d4e4d969cbda524d8a4c1 /include/net/cfg80211.h | |
| parent | cedb5412baeffd7326fc4869aa996d7f68d98ebb (diff) | |
| download | lwn-a1f1c21c181be20a8b7e073e5292ff1fe77769fa.tar.gz lwn-a1f1c21c181be20a8b7e073e5292ff1fe77769fa.zip | |
nl80211/cfg80211: add match filtering for sched_scan
Introduce filtering for scheduled scans to reduce the number of
unnecessary results (which cause useless wake-ups).
Add a new nested attribute where sets of parameters to be matched can
be passed when starting a scheduled scan. Only scan results that
match any of the sets will be returned.
At this point, the set consists of a single parameter, an SSID. This
can be easily extended in the future to support more complex matches.
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net/cfg80211.h')
| -rw-r--r-- | include/net/cfg80211.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 01c6bde99a41..09024ab617f9 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -876,6 +876,15 @@ struct cfg80211_scan_request { }; /** + * struct cfg80211_match_set - sets of attributes to match + * + * @ssid: SSID to be matched + */ +struct cfg80211_match_set { + struct cfg80211_ssid ssid; +}; + +/** * struct cfg80211_sched_scan_request - scheduled scan request description * * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) @@ -884,6 +893,11 @@ struct cfg80211_scan_request { * @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 + * @match_sets: sets of parameters to be matched for a scan result + * entry to be considered valid and to be passed to the host + * (others are filtered out). + * If ommited, all results are passed. + * @n_match_sets: number of match sets * @wiphy: the wiphy this was for * @dev: the interface * @channels: channels to scan @@ -895,6 +909,8 @@ struct cfg80211_sched_scan_request { u32 interval; const u8 *ie; size_t ie_len; + struct cfg80211_match_set *match_sets; + int n_match_sets; /* internal */ struct wiphy *wiphy; @@ -1814,6 +1830,9 @@ struct wiphy_wowlan_support { * any given scan * @max_sched_scan_ssids: maximum number of SSIDs the device can scan * for in any given scheduled scan + * @max_match_sets: maximum number of match sets the device can handle + * when performing a scheduled scan, 0 if filtering is not + * supported. * @max_scan_ie_len: maximum length of user-controlled IEs device can * add to probe request frames transmitted during a scan, must not * include fixed IEs like supported rates @@ -1871,6 +1890,7 @@ struct wiphy { int bss_priv_size; u8 max_scan_ssids; u8 max_sched_scan_ssids; + u8 max_match_sets; u16 max_scan_ie_len; u16 max_sched_scan_ie_len; |