This patch implements the idea to have multiple scheduled scan requests running concurrently. It mainly illustrates how to deal with the incoming request from user-space in terms of backward compatibility. In order to use multiple scheduled scans user-space needs to provide a flag attribute NL80211_ATTR_SCHED_SCAN_MULTI to indicate support. If not the request is treated as a legacy scan. Drivers currently supporting scheduled scan are now indicating they support a single scheduled scan request. This obsoletes WIPHY_FLAG_SUPPORTS_SCHED_SCAN.
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| @@ -387,7 +387,9 @@ · 386 unmodified lines | ||
| 387 | 387 | * are used. Extra IEs can also be passed from the userspace by |
| 388 | 388 | * using the %NL80211_ATTR_IE attribute. The first cycle of the |
| 389 | 389 | * scheduled scan can be delayed by %NL80211_ATTR_SCHED_SCAN_DELAY |
| 390 | − * is supplied. | |
| 390 | + * is supplied. If the device supports multiple concurrent scheduled | |
| 391 | + * scans, it will allow such when the caller provides the flag attribute | |
| 392 | + * %NL80211_ATTR_SCHED_SCAN_MULTI to indicate user-space support for it. | |
| 391 | 393 | * @NL80211_CMD_STOP_SCHED_SCAN: stop a scheduled scan. Returns -ENOENT if |
| 392 | 394 | * scheduled scan is not running. The caller may assume that as soon |
| 393 | 395 | * as the call returns, it is safe to start a new scheduled scan again. |
| @@ -2081,6 +2083,11 @@ enum nl80211_commands { · 1687 unmodified lines | ||
| 2081 | 2083 | * @NL80211_ATTR_PMK: PMK for the PMKSA identified by %NL80211_ATTR_PMKID. |
| 2082 | 2084 | * This is used with @NL80211_CMD_SET_PMKSA. |
| 2083 | 2085 | * |
| 2086 | + * @NL80211_ATTR_SCHED_SCAN_MULTI: flag attribute which user-space shall use to | |
| 2087 | + * indicate that it supports multiple active scheduled scan requests. | |
| 2088 | + * @NL80211_ATTR_SCHED_SCAN_MAX_REQS: indicates maximum number of scheduled | |
| 2089 | + * scan request that may be active for the device (u32). | |
| 2090 | + * | |
| 2084 | 2091 | * @NUM_NL80211_ATTR: total number of nl80211_attrs available |
| 2085 | 2092 | * @NL80211_ATTR_MAX: highest attribute number currently defined |
| 2086 | 2093 | * @__NL80211_ATTR_AFTER_LAST: internal use |
| @@ -2500,6 +2507,9 @@ enum nl80211_attrs { · 413 unmodified lines | ||
| 2500 | 2507 | |
| 2501 | 2508 | NL80211_ATTR_PMK, |
| 2502 | 2509 | |
| 2510 | + NL80211_ATTR_SCHED_SCAN_MULTI, | |
| 2511 | + NL80211_ATTR_SCHED_SCAN_MAX_REQS, | |
| 2512 | + | |
| 2503 | 2513 | /* add attributes here, update the policy in nl80211.c */ |
| 2504 | 2514 | |
| 2505 | 2515 | __NL80211_ATTR_AFTER_LAST, |