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MLD: Ignore failed links from association attempt

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If for some reason association fails and a link which has an error is
reported, add that specific link to the ignore list. After that,
immediately retrigger the connection code. In the usual case, we are
then going to reconnect to the same AP MLD but with that particular link
not being included in the connection.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
This commit is contained in:
Benjamin Berg 2023-11-21 01:51:28 +02:00 • committed by Jouni Malinen
parent 4a1cd7f545
commit 3cd377eb54
1 changed files with 29 additions and 3 deletions
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32
wpa_supplicant/sme.c
View file

@ -28,6 +28,7 @@
#include "p2p_supplicant.h"
#include "notify.h"
#include "bss.h"
#include "bssid_ignore.h"
#include "scan.h"
#include "sme.h"
#include "hs20_supplicant.h"
@ -2594,11 +2595,36 @@ mscs_fail:
}
if (wpa_drv_associate(wpa_s, &params) < 0) {
unsigned int n_failed_links = 0;
int i;
wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
"driver failed");
wpas_connection_failed(wpa_s, wpa_s->pending_bssid, NULL);
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
/* Prepare list of failed links for error report */
for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
if (!(wpa_s->valid_links & BIT(i)) ||
wpa_s->mlo_assoc_link_id == i ||
!params.mld_params.mld_links[i].error)
continue;
wpa_bssid_ignore_add(wpa_s, wpa_s->links[i].bssid);
n_failed_links++;
}
if (n_failed_links) {
/* Deauth and connect (possibly to the same AP MLD) */
wpa_drv_deauthenticate(wpa_s, wpa_s->ap_mld_addr,
WLAN_REASON_DEAUTH_LEAVING);
wpas_connect_work_done(wpa_s);
wpa_supplicant_mark_disassoc(wpa_s);
wpas_request_connection(wpa_s);
} else {
wpas_connection_failed(wpa_s, wpa_s->pending_bssid,
NULL);
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
}
return;
}