From fbb47fb4bf673cc7d5c7b59a5c9cae5e1fea89eb Mon Sep 17 00:00:00 2001 From: Aloka Dixit Date: Tue, 29 Sep 2020 17:29:16 -0700 Subject: [PATCH] hostapd: Fix lowest association ID with multiple BSSID element Association ID space is shared when multiple BSSID element is included in beacons. As per IEEE P802.11ax/D6.0, 11.1.3.8.5 Traffic advertisement in a multiple BSSID set, the lowest association ID to be assigned to non-AP station should be 2^n, where n is the maximum BSSID indicator of the multiple BSSID set. Example, if the set has 6 BSSes, the lowest association ID will be 8. This patch sets the correct value which was incorrectly set to the number BSSes in the multiple BSSID set. Signed-off-by: Aloka Dixit --- src/ap/ieee802_11.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/src/ap/ieee802_11.c +++ b/src/ap/ieee802_11.c @@ -3871,7 +3871,7 @@ int hostapd_get_aid(struct hostapd_data return -1; aid = i * 32 + j; if (hapd->iconf->multiple_bssid) - aid += hapd->iface->num_bss; + aid += pow(2, ceil(log2(hapd->iface->num_bss))); else aid += 1; if (aid > 2007)