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nl80211: add feature for BSS selection support

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Introducing a new feature that the driver can use to
indicate the driver/firmware supports configuration of BSS
selection criteria upon CONNECT command. This can be useful
when multiple BSS-es are found belonging to the same ESS,
ie. Infra-BSS with same SSID. The criteria can then be used to
offload selection of a preferred BSS.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Lei Zhang <leizh@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
[move wiphy support check into parse_bss_select()]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arend van Spriel
2016-03-02 20:37:18 +01:00
committed by Johannes Berg
parent f59374eb42
commit 38de03d2a2
4 changed files with 204 additions and 0 deletions
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7
net/wireless/core.c
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@@ -626,6 +626,13 @@ int wiphy_register(struct wiphy *wiphy)
!rdev->ops->set_mac_acl)))
return -EINVAL;
/* assure only valid behaviours are flagged by driver
* hence subtract 2 as bit 0 is invalid.
*/
if (WARN_ON(wiphy->bss_select_support &&
(wiphy->bss_select_support & ~(BIT(__NL80211_BSS_SELECT_ATTR_AFTER_LAST) - 2))))
return -EINVAL;
if (wiphy->addresses)
memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN);