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Do not continually reschedule specific scans to help finding hidden SSIDs

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In situations where the driver does background scanning and sends a
steady stream of scan results, wpa_supplicant would continually
reschedule the scan.  This resulted in specific SSID scans never
happening for a hidden AP, and the supplicant never connecting to the AP
because it never got found.  Instead, if there's an already scheduled
scan, and a request comes in to reschedule it, and there are enabled
scan_ssid=1 network blocks, let the scan happen anyway so the hidden
SSID has a chance to be found.
This commit is contained in:
Dan Williams 2008-06-03 11:37:48 +03:00 • committed by Jouni Malinen
parent 8479707beb
commit 7e1488494e
5 changed files with 93 additions and 0 deletions
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13
src/utils/eloop.h
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@ -206,6 +206,19 @@ int eloop_register_timeout(unsigned int secs, unsigned int usecs,
int eloop_cancel_timeout(eloop_timeout_handler handler,
void *eloop_data, void *user_data);
/**
* eloop_is_timeout_registered - Check if a timeout is already registered
* @handler: Matching callback function
* @eloop_data: Matching eloop_data
* @user_data: Matching user_data
* Returns: 1 if the timeout is registered, 0 if the timeout is not registered
*
* Determine if a matching <handler,eloop_data,user_data> timeout is registered
* with eloop_register_timeout().
*/
int eloop_is_timeout_registered(eloop_timeout_handler handler,
void *eloop_data, void *user_data);
/**
* eloop_register_signal - Register handler for signals
* @sig: Signal number (e.g., SIGHUP)