+static int add_scan_param(gchar *hex_ssid, int freq,
+ GSupplicantScanParams *scan_data,
+ int driver_max_scan_ssids)
+{
+ unsigned int i;
+
+ if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
+ gchar *ssid;
+ unsigned int j = 0, hex;
+ size_t hex_ssid_len = strlen(hex_ssid);
+
+ ssid = g_try_malloc0(hex_ssid_len / 2);
+ if (ssid == NULL)
+ return -ENOMEM;
+
+ for (i = 0; i < hex_ssid_len; i += 2) {
+ sscanf(hex_ssid + i, "%02x", &hex);
+ ssid[j++] = hex;
+ }
+
+ memcpy(scan_data->ssids[scan_data->num_ssids].ssid, ssid, j);
+ scan_data->ssids[scan_data->num_ssids].ssid_len = j;
+ scan_data->num_ssids++;
+
+ g_free(ssid);
+ }
+
+ /* Don't add duplicate entries */
+ for (i = 0; i < G_SUPPLICANT_MAX_FAST_SCAN; i++) {
+ if (scan_data->freqs[i] == 0) {
+ scan_data->freqs[i] = freq;
+ break;
+ } else if (scan_data->freqs[i] == freq)
+ break;
+ }
+
+ return 0;
+}
+
+struct last_connected {
+ GTimeVal modified;
+ gchar *ssid;
+ int freq;
+};
+
+static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
+{
+ GTimeVal *aval = (GTimeVal *)a;
+ GTimeVal *bval = (GTimeVal *)b;
+
+ /* Note that the sort order is descending */
+ if (aval->tv_sec < bval->tv_sec)
+ return 1;
+
+ if (aval->tv_sec > bval->tv_sec)
+ return -1;
+
+ return 0;
+}
+
+static void free_entry(gpointer data)
+{
+ struct last_connected *entry = data;
+
+ g_free(entry->ssid);
+ g_free(entry);
+}
+
+static int get_latest_connections(int max_ssids,
+ GSupplicantScanParams *scan_data)
+{
+ GSequenceIter *iter;
+ GSequence *latest_list;
+ struct last_connected *entry;
+ GKeyFile *keyfile;
+ GTimeVal modified;
+ gchar **services;
+ gchar *str;
+ char *ssid;
+ int i, freq;
+ int num_ssids = 0;
+
+ latest_list = g_sequence_new(free_entry);
+ if (latest_list == NULL)
+ return -ENOMEM;
+
+ services = connman_storage_get_services();
+ for (i = 0; services && services[i]; i++) {
+ keyfile = connman_storage_load_service(services[i]);
+
+ str = g_key_file_get_string(keyfile,
+ services[i], "Favorite", NULL);
+ if (str == NULL || g_strcmp0(str, "true")) {
+ if (str)
+ g_free(str);
+ g_key_file_free(keyfile);
+ continue;
+ }
+ g_free(str);
+
+ str = g_key_file_get_string(keyfile,
+ services[i], "AutoConnect", NULL);
+ if (str == NULL || g_strcmp0(str, "true")) {
+ if (str)
+ g_free(str);
+ g_key_file_free(keyfile);
+ continue;
+ }
+ g_free(str);
+
+ str = g_key_file_get_string(keyfile,
+ services[i], "Modified", NULL);
+ if (str != NULL) {
+ g_time_val_from_iso8601(str, &modified);
+ g_free(str);
+ }
+
+ ssid = g_key_file_get_string(keyfile,
+ services[i], "SSID", NULL);
+
+ freq = g_key_file_get_integer(keyfile, services[i],
+ "Frequency", NULL);
+ if (freq) {
+ entry = g_try_new(struct last_connected, 1);
+ if (entry == NULL) {
+ g_sequence_free(latest_list);
+ g_key_file_free(keyfile);
+ g_free(ssid);
+ return -ENOMEM;
+ }
+
+ entry->ssid = ssid;
+ entry->modified = modified;
+ entry->freq = freq;
+
+ g_sequence_insert_sorted(latest_list, entry,
+ sort_entry, NULL);
+ num_ssids++;
+ } else
+ g_free(ssid);
+
+ g_key_file_free(keyfile);
+ }
+
+ g_strfreev(services);
+
+ num_ssids = num_ssids > G_SUPPLICANT_MAX_FAST_SCAN ?
+ G_SUPPLICANT_MAX_FAST_SCAN : num_ssids;
+
+ iter = g_sequence_get_begin_iter(latest_list);
+
+ for (i = 0; i < num_ssids; i++) {
+ entry = g_sequence_get(iter);
+
+ DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
+ entry->modified.tv_sec);
+
+ add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
+
+ iter = g_sequence_iter_next(iter);
+ }
+
+ g_sequence_free(latest_list);
+ return num_ssids;
+}
+