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mesh: Fix peer link counting when removing a mesh peer

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When removing a mesh peer with control interface commands (ACCEPT_ACL
DEL_MAC/DENY_ACL ADD_MAC/MESH_PEER_REMOVE) the plink count was not
decreased from its last connection. This resulted in peer link count
leakage and wpa_supplicant rejecting the connections after reaching
max_peer_links (default: 99).

Fix this by decreasing the plink count when removing a mesh peer which
is in PLINK_ESTAB state.

Signed-off-by: Yu Wang <yyuwang@codeaurora.org>
This commit is contained in:
Yu Wang 2020-07-08 02:18:47 +08:00 committed by Jouni Malinen
parent 4df892c781
commit 885097125c
1 changed files with 2 additions and 0 deletions
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2
wpa_supplicant/mesh_mpm.c
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@ -533,6 +533,8 @@ static int mesh_mpm_plink_close(struct hostapd_data *hapd, struct sta_info *sta,
int reason = WLAN_REASON_MESH_PEERING_CANCELLED;
if (sta) {
if (sta->plink_state == PLINK_ESTAB)
hapd->num_plinks--;
wpa_mesh_set_plink_state(wpa_s, sta, PLINK_HOLDING);
mesh_mpm_send_plink_action(wpa_s, sta, PLINK_CLOSE, reason);
wpa_printf(MSG_DEBUG, "MPM closing plink sta=" MACSTR,