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From: Denis Kenzior <denkenz@gmail.com>
To: iwd@lists.01.org
Subject: Re: [PATCH 07/11] ap: Stop ongoing handshake on reassociation
Date: Thu, 27 Aug 2020 14:11:24 -0500	[thread overview]
Message-ID: <6b5eaab9-a7fd-ca7d-1f3a-c8dab2a8263c@gmail.com> (raw)
In-Reply-To: <20200827181453.61823-7-andrew.zaborowski@intel.com>

[-- Attachment #1: Type: text/plain, Size: 1943 bytes --]

Hi Andrew,

On 8/27/20 1:14 PM, Andrew Zaborowski wrote:
> On a new association or re-association, in addition to forgetting a
> complete RSN Association, also stop the EAPoL SM to stop any ongoing
> handshake.
> 
> Do this in a new function ap_stop_handshake that is now used in a few
> places that had copies of the same few lines.  I'll be adding some more
> lines to this function for WSC support.
> ---
>   src/ap.c | 51 +++++++++++++++++++++++++--------------------------
>   1 file changed, 25 insertions(+), 26 deletions(-)
> 
> diff --git a/src/ap.c b/src/ap.c
> index aef2e1dd..5cd2b717 100644
> --- a/src/ap.c
> +++ b/src/ap.c

No real concerns on the first three uses, but...

<snip>

> @@ -938,6 +933,12 @@ static void ap_assoc_reassoc(struct sta_state *sta, bool reassoc,
>   		goto unsupported;
>   	}
>   
> +	/* 802.11-2016 11.3.5.3 j) */
> +	if (sta->rsna)
> +		ap_drop_rsna(sta);
> +
> +	ap_stop_handshake(sta);
> +

ap_drop_rsna also destroys eapol_sm and the handshake object.  So perhaps you 
need to track the authorized state to choose the right cleanup action?

>   	if (!sta->associated) {
>   		/*
>   		 * Everything fine so far, assign an AID, send response.
> @@ -961,10 +962,6 @@ static void ap_assoc_reassoc(struct sta_state *sta, bool reassoc,
>   
>   	sta->assoc_rsne = l_memdup(rsn, rsn[1] + 2);
>   
> -	/* 802.11-2016 11.3.5.3 j) */
> -	if (sta->rsna)
> -		ap_drop_rsna(sta);
> -
>   	sta->assoc_resp_cmd_id = ap_assoc_resp(ap, sta, sta->addr, sta->aid, 0,
>   						reassoc,
>   						ap_success_assoc_resp_cb);
> @@ -987,8 +984,10 @@ bad_frame:
>   	 *
>   	 * For now, we need to drop the RSNA.
>   	 */
> -	if (sta->associated && sta->rsna)
> +	if (sta->associated && sta->rsna) {
>   		ap_drop_rsna(sta);
> +		ap_stop_handshake(sta);
> +	}

Same question here?

>   
>   	if (rates)
>   		l_uintset_free(rates);
> 

Regards,
-Denis

  reply	other threads:[~2020-08-27 19:11 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27 18:14 [PATCH 01/11] wscutil: Add wsc_build_beacon Andrew Zaborowski
2020-08-27 18:14 ` [PATCH 02/11] eap: Re-send Identity Request on EAPoL-Start Andrew Zaborowski
2020-08-27 18:53   ` Denis Kenzior
2020-08-27 20:47     ` Andrew Zaborowski
2020-08-27 20:38       ` Denis Kenzior
2020-08-27 23:24         ` Andrew Zaborowski
2020-08-27 18:14 ` [PATCH 03/11] eap-wsc: In WSC-R read UUID-E from settings Andrew Zaborowski
2020-08-27 19:03   ` Denis Kenzior
2020-08-27 18:14 ` [PATCH 04/11] ap: Move AP parameters to a struct Andrew Zaborowski
2020-08-27 19:00   ` Denis Kenzior
2020-08-27 18:14 ` [PATCH 05/11] ap: Drop unused variable Andrew Zaborowski
2020-08-27 18:14 ` [PATCH 06/11] ap: Fix incoming Probe Request BSSID check Andrew Zaborowski
2020-08-27 18:14 ` [PATCH 07/11] ap: Stop ongoing handshake on reassociation Andrew Zaborowski
2020-08-27 19:11   ` Denis Kenzior [this message]
2020-08-27 20:40     ` Andrew Zaborowski
2020-08-27 18:14 ` [PATCH 08/11] ap: Push Button mode API and beacon changes Andrew Zaborowski
2020-08-27 19:42   ` Denis Kenzior
2020-08-27 20:57     ` Andrew Zaborowski
2020-08-27 20:51       ` Denis Kenzior
2020-08-27 18:14 ` [PATCH 09/11] ap: WSC Probe Request processing logic Andrew Zaborowski
2020-08-27 18:14 ` [PATCH 10/11] ap: Parse WSC PBC association request and build response Andrew Zaborowski
2020-08-27 18:14 ` [PATCH 11/11] ap: Start EAP-WSC authentication with WSC enrollees Andrew Zaborowski
2020-08-27 19:16 ` [PATCH 01/11] wscutil: Add wsc_build_beacon Denis Kenzior
2020-08-27 23:18   ` Andrew Zaborowski
2020-08-28  0:12     ` Denis Kenzior

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