CLI: wifi scan

main/CMakeLists.txt

@@ -14,6 +14,7 @@ set(SOURCES
     "cli-uart.c"
     "cli-commands.c"
     "cli-commands-gpio.c"
+    "cli-commands-wifi.c"
     "cli-commands-device-info.c"
     "cli-args.c"
 )

main/cli-commands-wifi.c

@@ -0,0 +1,98 @@
+#include <string.h>
+#include <esp_wifi.h>
+#include "cli.h"
+#include "cli-args.h"
+#include "cli-commands.h"
+#include "helpers.h"
+
+#define WIFI_SCAN_SIZE 20
+
+static const char* get_auth_mode(int authmode) {
+    switch(authmode) {
+    case WIFI_AUTH_OPEN:
+        return "OPEN";
+    case WIFI_AUTH_WEP:
+        return "WEP";
+    case WIFI_AUTH_WPA_PSK:
+        return "WPA PSK";
+    case WIFI_AUTH_WPA2_PSK:
+        return "WPA2 PSK";
+    case WIFI_AUTH_WPA_WPA2_PSK:
+        return "WPA WPA2 PSK";
+    case WIFI_AUTH_WPA2_ENTERPRISE:
+        return "WPA2 ENTERPRISE";
+    case WIFI_AUTH_WPA3_PSK:
+        return "WPA3 PSK";
+    case WIFI_AUTH_WPA2_WPA3_PSK:
+        return "WPA2 WPA3 PSK";
+    default:
+        return "UNKNOWN";
+    }
+}
+
+static const char* get_pairwise_cipher(int pairwise_cipher) {
+    switch(pairwise_cipher) {
+    case WIFI_CIPHER_TYPE_NONE:
+        return "NONE";
+    case WIFI_CIPHER_TYPE_WEP40:
+        return "WEP40";
+    case WIFI_CIPHER_TYPE_WEP104:
+        return "WEP104";
+    case WIFI_CIPHER_TYPE_TKIP:
+        return "TKIP";
+    case WIFI_CIPHER_TYPE_CCMP:
+        return "CCMP";
+    case WIFI_CIPHER_TYPE_TKIP_CCMP:
+        return "TKIP_CCMP";
+    default:
+        return "UNKNOWN";
+    }
+}
+
+static const char* get_group_cipher(int group_cipher) {
+    switch(group_cipher) {
+    case WIFI_CIPHER_TYPE_NONE:
+        return "NONE";
+    case WIFI_CIPHER_TYPE_WEP40:
+        return "WEP40";
+    case WIFI_CIPHER_TYPE_WEP104:
+        return "WEP104";
+    case WIFI_CIPHER_TYPE_TKIP:
+        return "TKIP";
+    case WIFI_CIPHER_TYPE_CCMP:
+        return "CCMP";
+    case WIFI_CIPHER_TYPE_TKIP_CCMP:
+        return "TKIP_CCMP";
+    default:
+        return "UNKNOWN";
+    }
+}
+
+void cli_wifi_scan(Cli* cli, mstring_t* args) {
+    cli_write_str(cli, "Scanning...");
+    cli_write_eol(cli);
+
+    uint16_t number = WIFI_SCAN_SIZE;
+    wifi_ap_record_t* ap_info = calloc(WIFI_SCAN_SIZE, sizeof(wifi_ap_record_t));
+    uint16_t ap_count = 0;
+    memset(ap_info, 0, sizeof(wifi_ap_record_t));
+
+    esp_wifi_scan_start(NULL, true);
+    ESP_ERROR_CHECK(esp_wifi_scan_get_ap_records(&number, ap_info));
+    ESP_ERROR_CHECK(esp_wifi_scan_get_ap_num(&ap_count));
+
+    for(int i = 0; (i < WIFI_SCAN_SIZE) && (i < ap_count); i++) {
+        cli_printf(cli, "\"%s\" ", ap_info[i].ssid);
+        cli_printf(cli, "%dch ", ap_info[i].primary);
+        cli_printf(cli, "%idb ", ap_info[i].rssi);
+        cli_printf(cli, "%s ", get_auth_mode(ap_info[i].authmode));
+        if(ap_info[i].authmode != WIFI_AUTH_WEP) {
+            cli_printf(cli, "%s ", get_pairwise_cipher(ap_info[i].pairwise_cipher));
+            cli_printf(cli, "%s ", get_group_cipher(ap_info[i].group_cipher));
+        }
+        cli_write_eol(cli);
+    }
+
+    cli_write_str(cli, "OK");
+    free(ap_info);
+}

main/cli-commands.c

@@ -9,6 +9,7 @@ void cli_help(Cli* cli, mstring_t* args);
 void cli_gpio_set(Cli* cli, mstring_t* args);
 void cli_gpio_get(Cli* cli, mstring_t* args);
 void cli_device_info(Cli* cli, mstring_t* args);
+void cli_wifi_scan(Cli* cli, mstring_t* args);
 
 const CliItem cli_items[] = {
     {
@@ -31,6 +32,10 @@ const CliItem cli_items[] = {
         .name = "gpio_get",
         .callback = cli_gpio_get,
     },
+    {
+        .name = "wifi_scan",
+        .callback = cli_wifi_scan,
+    },
     {
         .name = "device_info",
         .callback = cli_device_info,