> -----Original Message----- > From: Jouni Malinen [mailto:j@xxxxx] > Sent: Sunday, February 21, 2016 10:30 > To: Peer, Ilan > Cc: hostap@xxxxxxxxxxxxxxxxxxx; Stern, Avraham > Subject: Re: [PATCH 24/25] MBO: Always accept BTM request with > disassociation imminent bit set > > On Mon, Feb 15, 2016 at 04:53:59PM +0200, Ilan Peer wrote: > > According to Multiband Operation specification (r17, section 3.5.2), a > > BSS Transition Management Request with the disassociation imminent bit > > set should always be accepted. > > The spec includes an exception for this: "another AP, if one [is] available". > Could not find this in the version that I have (v17). What I have states that: "On receipt of an unsolicited BTM Request frame with a Disassociation Imminent bit set to one, the MBO STA shall be capable of responding with a BTM Response frame that shall contain the Status Code field (§ 8.6.14.10 in [3]) indicating accept. The MBO STA may also include the Target BSSID field (§ 8.6.14.10 in [3]). When the Disassociation Imminent bit is set to one, the STA shall not reject the Transition Management Request" > > This is enforced in case the request did not include a candidate list. > > However, in case a candidate list was included but none of the APs in > > the candidate list was found in the scan results, the request is > > rejected. > > > > Fix that by always accepting a request with the disassociation > > imminent bit set even if no roaming candidate was found. > > This does not sound fixing to me.. Surely the request need to be rejected if > the requested action cannot be performed. > We were also confused about this :) Maybe the reason for this is that as Disassociation Imminent is set the station does not have much choice and eventually would be disassociated so whether it initiated a transition to one of the candidates or not does not really matter. Anyway, we could clarify this with the relevant people this week. Regards, Ilan. _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
