added reporting uplink

README.md

@@ -17,6 +17,7 @@ Daemon that makes an OpenWrt router appear as a UniFi AP to UniFi Network contro
 | **Wired Clients** | MACs from bridge FDB | `clients.c` → `bridge fdb` |
 | **CPU / RAM** | Real-time usage | `sysinfo.c` → `/proc/stat` + `/proc/meminfo` |
 | **Interfaces** | Speed, duplex, rx/tx counters | `sysinfo.c` → `/proc/net/dev` |
+| **Wired Uplink** | Link state, speed, duplex, and counters for topology | `inform.c` → `uplink` |
 | **Channel / RF** | Channel utilization, noise, tx_power | `sysinfo.c` → `iw survey dump` |
 | **LLDP Send** | Custom frames via AF_PACKET raw socket | `lldp.c` → `lldp_send_frame()` |
 | **LLDP Read** | Neighbors for UniFi topology | `lldp.c` → `lldpctl -f json` |

src/inform.c

@@ -238,6 +238,73 @@ static struct json_object *build_if_table(const uf_model_t *m,
     return arr;
 }
 
+/* Build the wired uplink object expected by UniFi controllers.
+ * The model owns the interface mapping; live state and counters come from
+ * sysfs and /proc so third-party upstream switches still get a usable link. */
+static struct json_object *build_uplink(const uf_model_t *m,
+                                        const openuf_state_t *st)
+{
+    const uf_port_t *port = NULL;
+    for (int i = 0; i < m->port_table_len; i++) {
+        if (m->port_table[i].is_uplink) {
+            port = &m->port_table[i];
+            break;
+        }
+    }
+    if (!port && m->port_table_len > 0)
+        port = &m->port_table[0];
+
+    struct json_object *o = json_object_new_object();
+    if (!port)
+        return o;
+
+    iface_stats_t stats;
+    sysinfo_iface(port->ifname, &stats);
+    int speed = stats.speed > 0 ? stats.speed : port->speed;
+
+    json_object_object_add(o, "name",
+        json_object_new_string(port->ifname));
+    json_object_object_add(o, "type",
+        json_object_new_string("wire"));
+    json_object_object_add(o, "media",
+        json_object_new_string(port->media));
+    json_object_object_add(o, "mac",
+        json_object_new_string(stats.mac[0] ? stats.mac : st->mac));
+    json_object_object_add(o, "ip",
+        json_object_new_string(stats.ip[0] ? stats.ip : "0.0.0.0"));
+    json_object_object_add(o, "num_port",
+        json_object_new_int(1));
+    json_object_object_add(o, "port_idx",
+        json_object_new_int(port->port_idx));
+    json_object_object_add(o, "up",
+        json_object_new_boolean(stats.up));
+    json_object_object_add(o, "speed",
+        json_object_new_int(speed));
+    json_object_object_add(o, "max_speed",
+        json_object_new_int(port->speed));
+    json_object_object_add(o, "full_duplex",
+        json_object_new_boolean(stats.full_duplex));
+    json_object_object_add(o, "rx_bytes",
+        json_object_new_int64(stats.rx_bytes));
+    json_object_object_add(o, "tx_bytes",
+        json_object_new_int64(stats.tx_bytes));
+    json_object_object_add(o, "rx_packets",
+        json_object_new_int64(stats.rx_packets));
+    json_object_object_add(o, "tx_packets",
+        json_object_new_int64(stats.tx_packets));
+    json_object_object_add(o, "rx_errors",
+        json_object_new_int64(stats.rx_errors));
+    json_object_object_add(o, "tx_errors",
+        json_object_new_int64(stats.tx_errors));
+    json_object_object_add(o, "rx_dropped",
+        json_object_new_int64(stats.rx_dropped));
+    json_object_object_add(o, "tx_dropped",
+        json_object_new_int64(stats.tx_dropped));
+    json_object_object_add(o, "rx_multicast",
+        json_object_new_int64(stats.rx_multicast));
+    return o;
+}
+
 /* ═══════════════════════════════════════════════════════════════════
    radio_table — static definition of the radio hardware
    ═══════════════════════════════════════════════════════════════════
@@ -637,8 +704,6 @@ static char *build_payload(const openuf_state_t *st,
         json_object_new_boolean(false));
     json_object_object_add(root, "locating",
         json_object_new_boolean(false));
-    json_object_object_add(root, "uplink",
-        json_object_new_string("eth0"));
     json_object_object_add(root, "country_code",
         json_object_new_int(0));
 
@@ -648,6 +713,11 @@ static char *build_payload(const openuf_state_t *st,
     /* ── Ethernet interfaces with real counters ──────────────── */
     json_object_object_add(root, "if_table", build_if_table(m, st));
 
+    /* ── Structured wired uplink for controller topology ─────── */
+    json_object_object_add(root, "uplink", build_uplink(m, st));
+    json_object_object_add(root, "uplink_table",
+        json_object_new_array());
+
     /* ── Radio capabilities (static, from the model) ─────────────── */
     build_radio_table(root, m);