mesh: Add debug prints on my/peer lid mismatches

This makes it easier to figure out why a received mesh peering frame
could end up getting dropped.

Signed-off-by: Jouni Malinen <j@w1.fi>

diff --git a/wpa_supplicant/mesh_mpm.c b/wpa_supplicant/mesh_mpm.c
index dbbf14d..45ef4a9 100644 (file)
--- a/wpa_supplicant/mesh_mpm.c
+++ b/wpa_supplicant/mesh_mpm.c
@@ -1185,6 +1185,9 @@ void mesh_mpm_action_rx(struct wpa_supplicant *wpa_s,
                                   "MPM: Peer link num over quota(%d)",
                                   hapd->max_plinks);
                } else if (sta->peer_lid && sta->peer_lid != plid) {
+                       wpa_printf(MSG_DEBUG,
+                                  "MPM: peer_lid mismatch: 0x%x != 0x%x",
+                                  sta->peer_lid, plid);
                        return; /* no FSM event */
                } else {
                        sta->peer_lid = plid;
@@ -1200,6 +1203,9 @@ void mesh_mpm_action_rx(struct wpa_supplicant *wpa_s,
                                   hapd->max_plinks);
                } else if (sta->my_lid != llid ||
                           (sta->peer_lid && sta->peer_lid != plid)) {
+                       wpa_printf(MSG_DEBUG,
+                                  "MPM: lid mismatch: my_lid: 0x%x != 0x%x or peer_lid: 0x%x != 0x%x",
+                                  sta->my_lid, llid, sta->peer_lid, plid);
                        return; /* no FSM event */
                } else {
                        if (!sta->peer_lid)
@@ -1219,12 +1225,19 @@ void mesh_mpm_action_rx(struct wpa_supplicant *wpa_s,
                         * restarted.
                         */
                        event = CLS_ACPT;
-               else if (sta->peer_lid != plid)
+               else if (sta->peer_lid != plid) {
+                       wpa_printf(MSG_DEBUG,
+                                  "MPM: peer_lid mismatch: 0x%x != 0x%x",
+                                  sta->peer_lid, plid);
                        return; /* no FSM event */
-               else if (peer_mgmt_ie.plid && sta->my_lid != llid)
+               } else if (peer_mgmt_ie.plid && sta->my_lid != llid) {
+                       wpa_printf(MSG_DEBUG,
+                                  "MPM: my_lid mismatch: 0x%x != 0x%x",
+                                  sta->my_lid, llid);
                        return; /* no FSM event */
-               else
+               } else {
                        event = CLS_ACPT;
+               }
                break;
        default:
                /*