Merge branch 'bugfix/dpp_listen_bugs_v4.3' into 'release/v4.3'

fix(esp_wifi): Backport DPP related bug fixes (v4.3)

See merge request espressif/esp-idf!27350

components/esp_common/src/esp_err_to_name.c

@@ -375,6 +375,9 @@ static const esp_err_msg_t esp_err_msg_table[] = {
 #   endif
 #   ifdef      ESP_ERR_WIFI_DISCARD
     ERR_TBL_IT(ESP_ERR_WIFI_DISCARD),                           /* 12311 0x3017 Discard frame */
+#   endif
+#   ifdef      ESP_ERR_WIFI_ROC_IN_PROGRESS
+    ERR_TBL_IT(ESP_ERR_WIFI_ROC_IN_PROGRESS),                   /* 12312 0x3018 ROC op is in progress */
 #   endif
     // components/wpa_supplicant/include/esp_supplicant/esp_wps.h
 #   ifdef      ESP_ERR_WIFI_REGISTRAR

components/esp_wifi/include/esp_wifi.h

@@ -82,6 +82,7 @@ extern "C" {
 #define ESP_ERR_WIFI_NOT_ASSOC   (ESP_ERR_WIFI_BASE + 21)  /*!< The WiFi connection is not associated */
 #define ESP_ERR_WIFI_TX_DISALLOW (ESP_ERR_WIFI_BASE + 22)  /*!< The WiFi TX is disallowed */
 #define ESP_ERR_WIFI_DISCARD     (ESP_ERR_WIFI_BASE + 23)  /*!< Discard frame */
+#define ESP_ERR_WIFI_ROC_IN_PROGRESS     (ESP_ERR_WIFI_BASE + 24)  /*!< ROC op is in progress */
 
 /**
  * @brief WiFi stack configuration parameters passed to esp_wifi_init call.

components/wpa_supplicant/src/esp_supplicant/esp_dpp.c

@@ -17,8 +17,7 @@ static TaskHandle_t s_dpp_task_hdl = NULL;
 static void *s_dpp_evt_queue = NULL;
 static void *s_dpp_api_lock = NULL;
 
-static bool s_dpp_stop_listening;
+static bool s_dpp_listen_in_progress;
-static int s_dpp_auth_retries;
 static struct esp_dpp_context_t s_dpp_ctx;
 static wifi_action_rx_cb_t s_action_rx_cb = esp_supp_rx_action;
 
@@ -70,6 +69,10 @@ end:
 
 static void esp_dpp_call_cb(esp_supp_dpp_event_t evt, void *data)
 {
+    if (evt == ESP_SUPP_DPP_FAIL && s_dpp_ctx.dpp_auth) {
+        dpp_auth_deinit(s_dpp_ctx.dpp_auth);
+        s_dpp_ctx.dpp_auth = NULL;
+    }
     s_dpp_ctx.dpp_event_cb(evt, data);
 }
 
@@ -138,12 +141,14 @@ static void esp_dpp_rx_auth_req(struct action_rx_param *rx_param, uint8_t *dpp_d
         rc = ESP_ERR_DPP_INVALID_ATTR;
         goto fail;
     }
-
+    if (s_dpp_ctx.dpp_auth) {
+        wpa_printf(MSG_DEBUG, "DPP: Already in DPP authentication exchange - ignore new one");
+        return;
+    }
     s_dpp_ctx.dpp_auth = dpp_auth_req_rx(NULL, DPP_CAPAB_ENROLLEE, 0, NULL,
                                          own_bi, rx_param->channel,
                                          (const u8 *)&rx_param->action_frm->u.public_action.v, dpp_data, len);
     os_memcpy(s_dpp_ctx.dpp_auth->peer_mac_addr, rx_param->sa, ETH_ALEN);
-
     esp_send_action_frame(rx_param->sa, wpabuf_head(s_dpp_ctx.dpp_auth->resp_msg),
                           wpabuf_len(s_dpp_ctx.dpp_auth->resp_msg),
                           rx_param->channel, OFFCHAN_TX_WAIT_TIME);
@@ -200,7 +205,7 @@ static int esp_dpp_handle_config_obj(struct dpp_authentication *auth,
         wpa_printf(MSG_INFO, DPP_EVENT_CONNECTOR "%s",
                    conf->connector);
     }
-    s_dpp_stop_listening = false;
+    s_dpp_listen_in_progress = true;
     esp_wifi_action_tx_req(WIFI_OFFCHAN_TX_CANCEL, 0, 0, NULL);
     esp_dpp_call_cb(ESP_SUPP_DPP_CFG_RECVD, wifi_cfg);
 
@@ -280,7 +285,7 @@ static void gas_query_resp_rx(struct action_rx_param *rx_param)
     int i, res;
 
     if (pos[1] == WLAN_EID_VENDOR_SPECIFIC && pos[2] == 5 &&
-            WPA_GET_BE24(&pos[3]) == OUI_WFA && pos[6] == 0x1a && pos[7] == 1) {
+            WPA_GET_BE24(&pos[3]) == OUI_WFA && pos[6] == 0x1a && pos[7] == 1 && auth) {
         if (dpp_conf_resp_rx(auth, resp, rx_param->vendor_data_len - 2) < 0) {
             wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed");
             goto fail;
@@ -316,7 +321,7 @@ static void esp_dpp_rx_action(struct action_rx_param *rx_param)
                                         (size_t)(public_action->v.pa_vendor_spec.vendor_data -
                                                  (u8 *)rx_param->action_frm);
 
-            if (!s_dpp_stop_listening) {
+            if (s_dpp_listen_in_progress) {
                 esp_supp_dpp_stop_listen();
             }
 
@@ -354,8 +359,26 @@ static void esp_dpp_task(void *pvParameters )
             }
 
             switch (evt->id) {
-            case SIG_DPP_DEL_TASK:
+            case SIG_DPP_DEL_TASK: {
+                struct dpp_bootstrap_params_t *params = &s_dpp_ctx.bootstrap_params;
+                if (params->info) {
+                    os_free(params->info);
+                    params->info = NULL;
+                }
+                if (params->key) {
+                    os_free(params->key);
+                    params->key = NULL;
+                }
+                if (s_dpp_ctx.dpp_global) {
+                    dpp_global_deinit(s_dpp_ctx.dpp_global);
+                    s_dpp_ctx.dpp_global = NULL;
+                }
+                if (s_dpp_ctx.dpp_auth) {
+                    dpp_auth_deinit(s_dpp_ctx.dpp_auth);
+                    s_dpp_ctx.dpp_auth = NULL;
+                }
                 task_del = true;
+            }
             break;
 
             case SIG_DPP_BOOTSTRAP_GEN: {
@@ -379,14 +402,20 @@ static void esp_dpp_task(void *pvParameters )
                 struct dpp_bootstrap_params_t *p = &s_dpp_ctx.bootstrap_params;
                 static int counter;
                 int channel;
+                esp_err_t ret = 0;
 
                 if (p->num_chan <= 0) {
                     wpa_printf(MSG_ERROR, "Listen channel not set");
                     break;
                 }
                 channel = p->chan_list[counter++ % p->num_chan];
-                esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_REQ, channel,
+                ret = esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_REQ, channel,
                                            BOOTSTRAP_ROC_WAIT_TIME, s_action_rx_cb);
+                if (ret != ESP_OK) {
+                    wpa_printf(MSG_ERROR, "Failed ROC. error : 0x%x", ret);
+                    break;
+                }
+                s_dpp_listen_in_progress = true;
             }
             break;
 
@@ -466,7 +495,7 @@ static void offchan_event_handler(void *arg, esp_event_base_t event_base,
     } else if (event_id == WIFI_EVENT_ROC_DONE) {
         wifi_event_roc_done_t *evt = (wifi_event_roc_done_t *)event_data;
 
-        if (!s_dpp_stop_listening && evt->context == (uint32_t)s_action_rx_cb) {
+        if (s_dpp_listen_in_progress && evt->context == (uint32_t)s_action_rx_cb) {
             esp_dpp_post_evt(SIG_DPP_LISTEN_NEXT_CHANNEL, 0);
         }
     }
@@ -613,6 +642,11 @@ fail:
 
 esp_err_t esp_supp_dpp_start_listen(void)
 {
+    if (s_dpp_listen_in_progress) {
+        wpa_printf(MSG_ERROR, "DPP: Failed to start listen as listen is already in progress.");
+        return ESP_FAIL;
+    }
+
     if (!s_dpp_ctx.dpp_global || s_dpp_ctx.id < 1) {
         wpa_printf(MSG_ERROR, "DPP: failed to start listen as dpp not initialized or bootstrapped.");
         return ESP_FAIL;
@@ -623,13 +657,12 @@ esp_err_t esp_supp_dpp_start_listen(void)
         return ESP_ERR_INVALID_STATE;
     }
 
-    s_dpp_stop_listening = false;
     return esp_dpp_post_evt(SIG_DPP_LISTEN_NEXT_CHANNEL, 0);
 }
 
 void esp_supp_dpp_stop_listen(void)
 {
-    s_dpp_stop_listening = true;
+    s_dpp_listen_in_progress = false;
     esp_wifi_remain_on_channel(ESP_IF_WIFI_STA, WIFI_ROC_CANCEL, 0, 0, NULL);
 }
 
@@ -642,6 +675,7 @@ bool is_dpp_enabled(void)
 
 esp_err_t esp_supp_dpp_init(esp_supp_dpp_event_cb_t cb)
 {
+    esp_err_t ret = ESP_OK;
     wifi_mode_t mode = 0;
     if (esp_wifi_get_mode(&mode) || ((mode != WIFI_MODE_STA) && (mode != WIFI_MODE_APSTA))) {
         wpa_printf(MSG_ERROR, "DPP: failed to init as not in station mode.");
@@ -656,31 +690,42 @@ esp_err_t esp_supp_dpp_init(esp_supp_dpp_event_cb_t cb)
         wpa_printf(MSG_ERROR, "DPP: failed to init as init already done.");
         return ESP_FAIL;
     }
-    struct dpp_global_config cfg = {0};
-    int ret;
 
     os_bzero(&s_dpp_ctx, sizeof(s_dpp_ctx));
-    s_dpp_ctx.dpp_event_cb = cb;
+    struct dpp_global_config cfg = {0};
-
     cfg.cb_ctx = &s_dpp_ctx;
     cfg.msg_ctx = &s_dpp_ctx;
     s_dpp_ctx.dpp_global = dpp_global_init(&cfg);
-
+    if (!s_dpp_ctx.dpp_global) {
-    s_dpp_stop_listening = false;
+        wpa_printf(MSG_ERROR, "DPP: failed to allocate memory for dpp_global");
-    s_dpp_evt_queue = xQueueCreate(3, sizeof(dpp_event_t));
+        ret = ESP_ERR_NO_MEM;
-    ret = xTaskCreate(esp_dpp_task, "dppT", DPP_TASK_STACK_SIZE, NULL, 2, &s_dpp_task_hdl);
+        goto init_fail;
-    if (ret != pdPASS) {
-        wpa_printf(MSG_ERROR, "DPP: failed to create task");
-        return ESP_FAIL;
     }
 
     s_dpp_api_lock = xSemaphoreCreateRecursiveMutex();
     if (!s_dpp_api_lock) {
-        esp_supp_dpp_deinit();
         wpa_printf(MSG_ERROR, "DPP: dpp_init: failed to create DPP API lock");
-        return ESP_ERR_NO_MEM;
+        ret = ESP_ERR_NO_MEM;
+        goto init_fail;
     }
 
+    s_dpp_evt_queue = xQueueCreate(3, sizeof(dpp_event_t));
+    if (!s_dpp_evt_queue) {
+        wpa_printf(MSG_ERROR, "DPP: dpp_init: failed to create DPP API queue");
+        ret = ESP_ERR_NO_MEM;
+        goto init_fail;
+    }
+
+    ret = xTaskCreate(esp_dpp_task, "dppT", DPP_TASK_STACK_SIZE, NULL, 2, &s_dpp_task_hdl);
+    if (ret != pdPASS) {
+        wpa_printf(MSG_ERROR, "DPP: failed to create task");
+        ret = ESP_ERR_NO_MEM;
+        goto init_fail;
+    }
+
+    s_dpp_listen_in_progress = false;
+    s_dpp_ctx.dpp_event_cb = cb;
+
     esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_ACTION_TX_STATUS,
                                &offchan_event_handler, NULL);
     esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_ROC_DONE,
@@ -689,29 +734,31 @@ esp_err_t esp_supp_dpp_init(esp_supp_dpp_event_cb_t cb)
     wpa_printf(MSG_INFO, "esp_dpp_task prio:%d, stack:%d\n", 2, DPP_TASK_STACK_SIZE);
 
     return ESP_OK;
+init_fail:
+    if (s_dpp_ctx.dpp_global) {
+        dpp_global_deinit(s_dpp_ctx.dpp_global);
+        s_dpp_ctx.dpp_global = NULL;
+    }
+    if (s_dpp_api_lock) {
+        vSemaphoreDelete(s_dpp_api_lock);
+        s_dpp_api_lock = NULL;
+    }
+    if (s_dpp_evt_queue) {
+        vQueueDelete(s_dpp_evt_queue);
+        s_dpp_evt_queue = NULL;
+    }
+    return ret;
 }
-
 void esp_supp_dpp_deinit(void)
 {
-    struct dpp_bootstrap_params_t *params = &s_dpp_ctx.bootstrap_params;
-    if (params->info) {
-        os_free(params->info);
-        params->info = NULL;
-    }
-    if (params->key) {
-        os_free(params->key);
-        params->key = NULL;
-    }
-
     esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_ACTION_TX_STATUS,
                                &offchan_event_handler);
     esp_event_handler_unregister(WIFI_EVENT, WIFI_EVENT_ROC_DONE,
                                &offchan_event_handler);
-    s_dpp_auth_retries = 0;
     if (s_dpp_ctx.dpp_global) {
-        dpp_global_deinit(s_dpp_ctx.dpp_global);
+        if (esp_dpp_post_evt(SIG_DPP_DEL_TASK, 0)) {
-        s_dpp_ctx.dpp_global = NULL;
+            wpa_printf(MSG_ERROR, "DPP Deinit Failed");
-        esp_dpp_post_evt(SIG_DPP_DEL_TASK, 0);
+        }
     }
 }
 #endif