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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* (C) Copyright 2010 Red Hat, Inc.
*/
/*
* The example shows how to get info about APs visible by Wi-Fi devices
* using libnm (that wraps direct D-Bus calls).
*
* Compile with:
* gcc -Wall `pkg-config --libs --cflags glib-2.0 libnm` get-ap-info-libnm.c -o get-ap-info-libnm
*/
#include <glib.h>
#include <dbus/dbus-glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <nm-client.h>
#include <nm-device.h>
#include <nm-device-wifi.h>
#include <nm-access-point.h>
#include <nm-dbus-interface.h>
#include <nm-utils.h>
/* Convert flags to string */
static char *
ap_wpa_rsn_flags_to_string (guint32 flags)
{
char *flags_str[16]; /* Enough space for flags and terminating NULL */
char *ret_str;
int i = 0;
if (flags & NM_802_11_AP_SEC_PAIR_WEP40)
flags_str[i++] = g_strdup ("pair_wpe40");
if (flags & NM_802_11_AP_SEC_PAIR_WEP104)
flags_str[i++] = g_strdup ("pair_wpe104");
if (flags & NM_802_11_AP_SEC_PAIR_TKIP)
flags_str[i++] = g_strdup ("pair_tkip");
if (flags & NM_802_11_AP_SEC_PAIR_CCMP)
flags_str[i++] = g_strdup ("pair_ccmp");
if (flags & NM_802_11_AP_SEC_GROUP_WEP40)
flags_str[i++] = g_strdup ("group_wpe40");
if (flags & NM_802_11_AP_SEC_GROUP_WEP104)
flags_str[i++] = g_strdup ("group_wpe104");
if (flags & NM_802_11_AP_SEC_GROUP_TKIP)
flags_str[i++] = g_strdup ("group_tkip");
if (flags & NM_802_11_AP_SEC_GROUP_CCMP)
flags_str[i++] = g_strdup ("group_ccmp");
if (flags & NM_802_11_AP_SEC_KEY_MGMT_PSK)
flags_str[i++] = g_strdup ("psk");
if (flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X)
flags_str[i++] = g_strdup ("802.1X");
if (i == 0)
flags_str[i++] = g_strdup ("none");
flags_str[i] = NULL;
ret_str = g_strjoinv (" ", flags_str);
i = 0;
while (flags_str[i])
g_free (flags_str[i++]);
return ret_str;
}
static void
show_access_point_info (NMAccessPoint *ap)
{
guint32 flags, wpa_flags, rsn_flags, freq, bitrate;
guint8 strength;
const GByteArray *ssid;
const char *hwaddr;
NM80211Mode mode;
char *freq_str, *ssid_str, *bitrate_str, *strength_str, *wpa_flags_str, *rsn_flags_str;
GString *security_str;
/* Get AP properties */
flags = nm_access_point_get_flags (ap);
wpa_flags = nm_access_point_get_wpa_flags (ap);
rsn_flags = nm_access_point_get_rsn_flags (ap);
ssid = nm_access_point_get_ssid (ap);
hwaddr = nm_access_point_get_bssid (ap);
freq = nm_access_point_get_frequency (ap);
mode = nm_access_point_get_mode (ap);
bitrate = nm_access_point_get_max_bitrate (ap);
strength = nm_access_point_get_strength (ap);
/* Convert to strings */
ssid_str = nm_utils_ssid_to_utf8 (ssid);
freq_str = g_strdup_printf ("%u MHz", freq);
bitrate_str = g_strdup_printf ("%u Mbit/s", bitrate/1000);
strength_str = g_strdup_printf ("%u", strength);
wpa_flags_str = ap_wpa_rsn_flags_to_string (wpa_flags);
rsn_flags_str = ap_wpa_rsn_flags_to_string (rsn_flags);
security_str = g_string_new (NULL);
if ( !(flags & NM_802_11_AP_FLAGS_PRIVACY)
&& (wpa_flags != NM_802_11_AP_SEC_NONE)
&& (rsn_flags != NM_802_11_AP_SEC_NONE))
g_string_append (security_str, "Encrypted: ");
if ( (flags & NM_802_11_AP_FLAGS_PRIVACY)
&& (wpa_flags == NM_802_11_AP_SEC_NONE)
&& (rsn_flags == NM_802_11_AP_SEC_NONE))
g_string_append (security_str, "WEP ");
if (wpa_flags != NM_802_11_AP_SEC_NONE)
g_string_append (security_str, "WPA ");
if (rsn_flags != NM_802_11_AP_SEC_NONE)
g_string_append (security_str, "WPA2 ");
if ( (wpa_flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X)
|| (rsn_flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X))
g_string_append (security_str, "Enterprise ");
if (security_str->len > 0)
g_string_truncate (security_str, security_str->len-1); /* Chop off last space */
printf ("SSID: %s\n", ssid_str);
printf ("BSSID: %s\n", hwaddr);
printf ("Mode: %s\n", mode == NM_802_11_MODE_ADHOC ? "Ad-Hoc"
: mode == NM_802_11_MODE_INFRA ? "Infrastructure"
: "Unknown");
printf ("Freq: %s\n", freq_str);
printf ("Bitrate: %s\n", bitrate_str);
printf ("Strength: %s\n", strength_str);
printf ("Security: %s\n", security_str->str);
printf ("WPA flags: %s\n", wpa_flags_str);
printf ("RSN flags: %s\n", rsn_flags_str);
printf ("D-Bus path: %s\n\n", nm_object_get_path (NM_OBJECT (ap)));
g_free (ssid_str);
g_free (freq_str);
g_free (bitrate_str);
g_free (strength_str);
g_free (wpa_flags_str);
g_free (rsn_flags_str);
g_string_free (security_str, TRUE);
}
static void
show_wifi_device_info (NMDevice *device)
{
NMAccessPoint *active_ap = NULL;
const GPtrArray *aps;
const char *iface;
const char *driver;
guint32 speed;
const GByteArray *active_ssid;
char *active_ssid_str = NULL;
int i;
/* Get active AP */
if (nm_device_get_state (device) == NM_DEVICE_STATE_ACTIVATED) {
if ((active_ap = nm_device_wifi_get_active_access_point (NM_DEVICE_WIFI (device)))) {
active_ssid = nm_access_point_get_ssid (active_ap);
active_ssid_str = nm_utils_ssid_to_utf8 (active_ssid);
}
}
iface = nm_device_get_iface (device);
driver = nm_device_get_driver (device);
speed = nm_device_wifi_get_bitrate (NM_DEVICE_WIFI (device));
speed /= 1000;
printf ("Device: %s ---- Driver: %s ---- Speed: %d Mbit/s ---- Active AP: %s\n",
iface, driver, speed, active_ssid_str ? active_ssid_str : "none");
printf ("=================================================================================\n");
g_free (active_ssid_str);
/* Get all APs of the Wi-Fi device */
aps = nm_device_wifi_get_access_points (NM_DEVICE_WIFI (device));
/* Print AP details */
for (i = 0; aps && (i < aps->len); i++) {
NMAccessPoint *ap = g_ptr_array_index (aps, i);
show_access_point_info (ap);
}
}
int main (int argc, char *argv[])
{
NMClient *client;
const GPtrArray *devices;
int i;
GError *error = NULL;
#if !GLIB_CHECK_VERSION (2, 35, 0)
/* Initialize GType system */
g_type_init ();
#endif
/* Get NMClient object */
client = nm_client_new (NULL, &error);
if (!client) {
g_message ("Error: Could not create NMClient: %s.", error->message);
g_error_free (error);
return EXIT_FAILURE;
}
/* Get all devices managed by NetworkManager */
devices = nm_client_get_devices (client);
/* Go through the array and process Wi-Fi devices */
for (i = 0; devices && (i < devices->len); i++) {
NMDevice *device = g_ptr_array_index (devices, i);
if (NM_IS_DEVICE_WIFI (device))
show_wifi_device_info (device);
}
g_object_unref (client);
return EXIT_SUCCESS;
}
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