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nl80211: add an attribute to allow delaying the first scheduled scan cycle

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The userspace may want to delay the the first scheduled scan or
net-detect cycle.  Add an optional attribute to the scheduled scan
configuration to pass the delay to be (optionally) used by the driver.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
[add the attribute to the policy to validate it]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Luciano Coelho
2015-01-16 16:04:09 +02:00
committed by Johannes Berg
parent db82d8a966
commit 9c74893441
3 changed files with 24 additions and 6 deletions
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20
include/uapi/linux/nl80211.h
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@@ -324,7 +324,9 @@
* if passed, define which channels should be scanned; if not
* passed, all channels allowed for the current regulatory domain
* are used. Extra IEs can also be passed from the userspace by
* using the %NL80211_ATTR_IE attribute.
* using the %NL80211_ATTR_IE attribute. The first cycle of the
* scheduled scan can be delayed by %NL80211_ATTR_SCHED_SCAN_DELAY
* is supplied.
* @NL80211_CMD_STOP_SCHED_SCAN: stop a scheduled scan. Returns -ENOENT if
* scheduled scan is not running. The caller may assume that as soon
* as the call returns, it is safe to start a new scheduled scan again.
@@ -1735,6 +1737,9 @@ enum nl80211_commands {
* should be contained in the result as the sum of the respective counters
* over all channels.
*
* @NL80211_ATTR_SCHED_SCAN_DELAY: delay before a scheduled scan (or a
* WoWLAN net-detect scan) is started, u32 in seconds.
*
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -2100,6 +2105,8 @@ enum nl80211_attrs {
NL80211_ATTR_NETNS_FD,
NL80211_ATTR_SCHED_SCAN_DELAY,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -3743,11 +3750,12 @@ struct nl80211_pattern_support {
* @NL80211_WOWLAN_TRIG_NET_DETECT: wake up when a configured network
* is detected. This is a nested attribute that contains the
* same attributes used with @NL80211_CMD_START_SCHED_SCAN. It
* specifies how the scan is performed (e.g. the interval and the
* channels to scan) as well as the scan results that will
* trigger a wake (i.e. the matchsets). This attribute is also
* sent in a response to @NL80211_CMD_GET_WIPHY, indicating the
* number of match sets supported by the driver (u32).
* specifies how the scan is performed (e.g. the interval, the
* channels to scan and the initial delay) as well as the scan
* results that will trigger a wake (i.e. the matchsets). This
* attribute is also sent in a response to
* @NL80211_CMD_GET_WIPHY, indicating the number of match sets
* supported by the driver (u32).
* @NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS: nested attribute
* containing an array with information about what triggered the
* wake up. If no elements are present in the array, it means