From: Avraham Stern <avraham.stern@xxxxxxxxx>
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.
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.
type=feature
Signed-off-by: Avraham Stern <avraham.stern@xxxxxxxxx>
Signed-off-by: Benjamin Berg <benjamin.berg@xxxxxxxxx>
---
wpa_supplicant/wnm_sta.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/wpa_supplicant/wnm_sta.c b/wpa_supplicant/wnm_sta.c
index 8c51b3ddb..4a3fd5eb1 100644
--- a/wpa_supplicant/wnm_sta.c
+++ b/wpa_supplicant/wnm_sta.c
@@ -1114,11 +1114,18 @@ int wnm_scan_process(struct wpa_supplicant *wpa_s, bool pre_scan_check)
return 1;
send_bss_resp_fail:
- /* Send reject response for all the failures */
+ if (wpa_s->wnm_reply) {
+ /* If disassoc imminent is set, we must not reject */
+ if (wpa_s->wnm_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT ||
+ wpa_s->wnm_mode & WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT) {
+ wpa_printf(MSG_DEBUG,
+ "WNM: Accept BTM request because disassociation imminent bit is set");
+ status = WNM_BSS_TM_ACCEPT;
+ }
- if (wpa_s->wnm_reply)
wnm_send_bss_transition_mgmt_resp(wpa_s, status, reason,
0, NULL);
+ }
wnm_btm_reset(wpa_s);
--
2.44.0
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