examples: add C example showing APs' information
This commit is contained in:
Jiří Klimeš
@@ -10,7 +10,8 @@ noinst_PROGRAMS = \
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add-connection-glib \
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get-active-connections \
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list-connections-dbus \
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list-connections-libnm-glib
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list-connections-libnm-glib \
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get-ap-info-libnm-glib
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add_connection_glib_SOURCES = add-connection-glib.c
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add_connection_glib_LDADD = \
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@@ -37,9 +38,17 @@ list_connections_libnm_glib_LDADD = \
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$(DBUS_LIBS) \
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$(GLIB_LIBS)
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get_ap_info_libnm_glib_SOURCES = get-ap-info-libnm-glib.c
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get_ap_info_libnm_glib_LDADD = \
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$(top_builddir)/libnm-util/libnm-util.la \
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$(top_builddir)/libnm-glib/libnm-glib.la \
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$(DBUS_LIBS) \
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$(GLIB_LIBS)
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EXTRA_DIST = \
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add-connection-glib.c \
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get-active-connections.c \
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list-connections-dbus.c \
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list-connections-libnm-glib.c
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list-connections-libnm-glib.c \
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get-ap-info-libnm-glib.c
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229
examples/C/get-ap-info-libnm-glib.c
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229
examples/C/get-ap-info-libnm-glib.c
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@@ -0,0 +1,229 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* (C) Copyright 2010 Red Hat, Inc.
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*/
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/*
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* The example shows how to get info about APs visible by Wi-Fi devices
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* using libnm-glib (that wraps direct D-Bus calls).
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* The example uses dbus-glib, libnm-util and libnm-glib libraries.
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*
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* Compile with:
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* gcc -Wall `pkg-config --libs --cflags glib-2.0 dbus-glib-1 libnm-util libnm-glib` get-ap-info-libnm-glib.c -o get-ap-info-libnm-glib
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*/
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#include <glib.h>
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#include <dbus/dbus-glib.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <nm-client.h>
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#include <nm-device.h>
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#include <nm-device-wifi.h>
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#include <nm-access-point.h>
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#include <NetworkManager.h>
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#include <nm-utils.h>
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/* Convert flags to string */
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static char *
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ap_wpa_rsn_flags_to_string (guint32 flags)
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{
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char *flags_str[16]; /* Enough space for flags and terminating NULL */
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char *ret_str;
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int i = 0;
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if (flags & NM_802_11_AP_SEC_PAIR_WEP40)
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flags_str[i++] = g_strdup ("pair_wpe40");
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if (flags & NM_802_11_AP_SEC_PAIR_WEP104)
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flags_str[i++] = g_strdup ("pair_wpe104");
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if (flags & NM_802_11_AP_SEC_PAIR_TKIP)
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flags_str[i++] = g_strdup ("pair_tkip");
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if (flags & NM_802_11_AP_SEC_PAIR_CCMP)
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flags_str[i++] = g_strdup ("pair_ccmp");
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if (flags & NM_802_11_AP_SEC_GROUP_WEP40)
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flags_str[i++] = g_strdup ("group_wpe40");
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if (flags & NM_802_11_AP_SEC_GROUP_WEP104)
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flags_str[i++] = g_strdup ("group_wpe104");
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if (flags & NM_802_11_AP_SEC_GROUP_TKIP)
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flags_str[i++] = g_strdup ("group_tkip");
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if (flags & NM_802_11_AP_SEC_GROUP_CCMP)
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flags_str[i++] = g_strdup ("group_ccmp");
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if (flags & NM_802_11_AP_SEC_KEY_MGMT_PSK)
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flags_str[i++] = g_strdup ("psk");
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if (flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X)
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flags_str[i++] = g_strdup ("802.1X");
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if (i == 0)
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flags_str[i++] = g_strdup ("none");
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flags_str[i] = NULL;
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ret_str = g_strjoinv (" ", flags_str);
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i = 0;
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while (flags_str[i])
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g_free (flags_str[i++]);
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return ret_str;
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}
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static void
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show_access_point_info (NMAccessPoint *ap)
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{
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guint32 flags, wpa_flags, rsn_flags, freq, bitrate;
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guint8 strength;
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const GByteArray *ssid;
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const char *hwaddr;
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NM80211Mode mode;
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char *freq_str, *ssid_str, *bitrate_str, *strength_str, *wpa_flags_str, *rsn_flags_str;
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GString *security_str;
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/* Get AP properties */
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flags = nm_access_point_get_flags (ap);
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wpa_flags = nm_access_point_get_wpa_flags (ap);
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rsn_flags = nm_access_point_get_rsn_flags (ap);
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ssid = nm_access_point_get_ssid (ap);
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hwaddr = nm_access_point_get_hw_address (ap);
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freq = nm_access_point_get_frequency (ap);
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mode = nm_access_point_get_mode (ap);
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bitrate = nm_access_point_get_max_bitrate (ap);
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strength = nm_access_point_get_strength (ap);
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/* Convert to strings */
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ssid_str = nm_utils_ssid_to_utf8 ((const char *) ssid->data, ssid->len);
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freq_str = g_strdup_printf ("%u MHz", freq);
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bitrate_str = g_strdup_printf ("%u MB/s", bitrate/1000);
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strength_str = g_strdup_printf ("%u", strength);
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wpa_flags_str = ap_wpa_rsn_flags_to_string (wpa_flags);
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rsn_flags_str = ap_wpa_rsn_flags_to_string (rsn_flags);
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security_str = g_string_new (NULL);
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if ( !(flags & NM_802_11_AP_FLAGS_PRIVACY)
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&& (wpa_flags != NM_802_11_AP_SEC_NONE)
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&& (rsn_flags != NM_802_11_AP_SEC_NONE))
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g_string_append (security_str, "Encrypted: ");
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if ( (flags & NM_802_11_AP_FLAGS_PRIVACY)
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&& (wpa_flags == NM_802_11_AP_SEC_NONE)
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&& (rsn_flags == NM_802_11_AP_SEC_NONE))
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g_string_append (security_str, "WEP ");
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if (wpa_flags != NM_802_11_AP_SEC_NONE)
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g_string_append (security_str, "WPA ");
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if (rsn_flags != NM_802_11_AP_SEC_NONE)
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g_string_append (security_str, "WPA2 ");
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if ( (wpa_flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X)
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|| (rsn_flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X))
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g_string_append (security_str, "Enterprise ");
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if (security_str->len > 0)
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g_string_truncate (security_str, security_str->len-1); /* Chop off last space */
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printf ("SSID: %s\n", ssid_str);
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printf ("BSSID: %s\n", hwaddr);
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printf ("Mode: %s\n", mode == NM_802_11_MODE_ADHOC ? "Ad-Hoc" : mode == NM_802_11_MODE_INFRA ? "Infrastructure" : "Unknown");
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printf ("Freq: %s\n", freq_str);
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printf ("Bitrate: %s\n", bitrate_str);
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printf ("Strength: %s\n", strength_str);
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printf ("Security: %s\n", security_str->str);
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printf ("WPA flags: %s\n", wpa_flags_str);
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printf ("RSN flags: %s\n", rsn_flags_str);
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printf ("D-Bus path: %s\n\n", nm_object_get_path (NM_OBJECT (ap)));
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g_free (ssid_str);
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g_free (freq_str);
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g_free (bitrate_str);
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g_free (strength_str);
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g_free (wpa_flags_str);
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g_free (rsn_flags_str);
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g_string_free (security_str, TRUE);
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}
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static void
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show_wifi_device_info (NMDevice *device)
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{
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NMAccessPoint *active_ap = NULL;
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const GPtrArray *aps;
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const char *iface;
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const char *driver;
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guint32 speed;
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const GByteArray *active_ssid;
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char *active_ssid_str = NULL;
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int i;
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/* Get active AP */
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if (nm_device_get_state (device) == NM_DEVICE_STATE_ACTIVATED) {
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if ((active_ap = nm_device_wifi_get_active_access_point (NM_DEVICE_WIFI (device)))) {
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active_ssid = nm_access_point_get_ssid (active_ap);
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active_ssid_str = nm_utils_ssid_to_utf8 ((const char *) active_ssid->data, active_ssid->len);
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}
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}
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iface = nm_device_get_iface (device);
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driver = nm_device_get_driver (device);
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speed = nm_device_wifi_get_bitrate (NM_DEVICE_WIFI (device));
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speed /= 1000;
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printf ("Device: %s ---- Driver: %s ---- Speed: %d MB/s ---- Active AP: %s\n",
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iface, driver, speed, active_ssid_str ? active_ssid_str : "none");
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printf ("=================================================================================\n");
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g_free (active_ssid_str);
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/* Get all APs of the Wi-Fi device */
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aps = nm_device_wifi_get_access_points (NM_DEVICE_WIFI (device));
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/* Print AP details */
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for (i = 0; aps && (i < aps->len); i++) {
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NMAccessPoint *ap = g_ptr_array_index (aps, i);
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show_access_point_info (ap);
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}
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}
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int main (int argc, char *argv[])
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{
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DBusGConnection *bus;
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NMClient *client;
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const GPtrArray *devices;
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int i;
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/* Initialize GType system */
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g_type_init ();
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/* Get system bus */
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bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, NULL);
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/* Get NMClient object */
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client = nm_client_new ();
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if (!client) {
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dbus_g_connection_unref (bus);
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g_message ("Error: Could not create NMClient.");
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return EXIT_FAILURE;
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}
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/* Get all devices managed by NetworkManager */
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devices = nm_client_get_devices (client);
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/* Go through the array and process Wi-Fi devices */
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for (i = 0; devices && (i < devices->len); i++) {
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NMDevice *device = g_ptr_array_index (devices, i);
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if (NM_IS_DEVICE_WIFI (device))
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show_wifi_device_info (device);
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}
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g_object_unref (client);
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dbus_g_connection_unref (bus);
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return EXIT_SUCCESS;
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}
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