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mac80211: fix scan when operating on DFS channels in ETSI domains

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In non-ETSI regulatory domains scan is blocked when operating channel
is a DFS channel. For ETSI, however, once DFS channel is marked as
available after the CAC, this channel will remain available (for some
time) even after leaving this channel.

Therefore a scan can be done without any impact on the availability
of the DFS channel as no new CAC is required after the scan.

Enable scan in mac80211 in these cases.

Signed-off-by: Aaron Komisar <aaron.komisar@tandemg.com>
Link: https://lore.kernel.org/r/1570024728-17284-1-git-send-email-aaron.komisar@tandemg.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Aaron Komisar
2019-10-02 13:59:07 +00:00
committed by Johannes Berg
parent 95697f9907
commit dc0c18ed22
4 changed files with 37 additions and 10 deletions
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8
include/net/cfg80211.h
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@@ -5549,6 +5549,14 @@ const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
*/
const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
/**
* regulatory_pre_cac_allowed - check if pre-CAC allowed in the current regdom
* @wiphy: wiphy for which pre-CAC capability is checked.
*
* Pre-CAC is allowed only in some regdomains (notable ETSI).
*/
bool regulatory_pre_cac_allowed(struct wiphy *wiphy);
/**
* DOC: Internal regulatory db functions
*