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https://gitlab.freedesktop.org/NetworkManager/NetworkManager
synced 2024-10-04 15:21:12 +00:00
examples: rework "python/gi/show-wifi-networks.py" example
- only printing the scan list is not gonna cut it. It's usually stale, and we need to request a new scan. - don't hard-code the GEnum and GFlags values that we understand. We have libnm, which provides us some meta information about the data. Use it. - Some code cleanup. https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1531
This commit is contained in:
Thomas Haller
parent
a798b4f3f6
commit
004ffb91cf
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@ -5,10 +5,17 @@
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#
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import locale
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import math
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import os
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import re
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import time
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import gi
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gi.require_version("NM", "1.0")
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from gi.repository import NM
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from gi.repository import NM, GLib, Gio
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SCAN_THRESHOLD_MSEC = 10000
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#
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# This example lists Wi-Fi access points NetworkManager scanned on Wi-Fi devices.
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@ -19,116 +26,165 @@ from gi.repository import NM
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# an error without it: http://www.python.org/dev/peps/pep-0263/
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#
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NM80211Mode = getattr(NM, "80211Mode")
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NM80211ApFlags = getattr(NM, "80211ApFlags")
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NM80211ApSecurityFlags = getattr(NM, "80211ApSecurityFlags")
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def clamp(value, minvalue, maxvalue):
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return max(minvalue, min(value, maxvalue))
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main_loop = GLib.MainLoop()
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def ssid_to_utf8(ap):
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ssid = ap.get_ssid()
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if not ssid:
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return ""
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return NM.utils_ssid_to_utf8(ap.get_ssid().get_data())
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def print_device_info(device):
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active_ap = dev.get_active_access_point()
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ssid = None
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if active_ap is not None:
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ssid = ssid_to_utf8(active_ap)
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info = "Device: %s | Driver: %s | Active AP: %s" % (
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dev.get_iface(),
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dev.get_driver(),
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ssid,
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)
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print(info)
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print("=" * len(info))
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def mode_to_string(mode):
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if mode == getattr(NM, "80211Mode").INFRA:
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return "INFRA"
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if mode == getattr(NM, "80211Mode").ADHOC:
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return "ADHOC"
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if mode == getattr(NM, "80211Mode").AP:
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return "AP"
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return "UNKNOWN"
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def flags_to_string(flags):
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if flags & getattr(NM, "80211ApFlags").PRIVACY:
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return "PRIVACY"
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return "NONE"
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def security_flags_to_string(flags):
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NM_AP_FLAGS = getattr(NM, "80211ApSecurityFlags")
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def gflags_to_str(flags_type, value):
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if value == 0:
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return "none"
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str = ""
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if flags & NM_AP_FLAGS.PAIR_WEP40:
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str = str + " PAIR_WEP40"
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if flags & NM_AP_FLAGS.PAIR_WEP104:
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str = str + " PAIR_WEP104"
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if flags & NM_AP_FLAGS.PAIR_TKIP:
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str = str + " PAIR_TKIP"
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if flags & NM_AP_FLAGS.PAIR_CCMP:
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str = str + " PAIR_CCMP"
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if flags & NM_AP_FLAGS.GROUP_WEP40:
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str = str + " GROUP_WEP40"
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if flags & NM_AP_FLAGS.GROUP_WEP104:
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str = str + " GROUP_WEP104"
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if flags & NM_AP_FLAGS.GROUP_TKIP:
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str = str + " GROUP_TKIP"
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if flags & NM_AP_FLAGS.GROUP_CCMP:
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str = str + " GROUP_CCMP"
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if flags & NM_AP_FLAGS.KEY_MGMT_PSK:
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str = str + " KEY_MGMT_PSK"
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if flags & NM_AP_FLAGS.KEY_MGMT_802_1X:
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str = str + " KEY_MGMT_802_1X"
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if str:
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return str.lstrip()
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else:
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return "NONE"
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for n in sorted(dir(flags_type)):
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if not re.search("^[A-Z0-9_]+$", n):
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continue
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flag_value = getattr(flags_type, n)
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if value & flag_value:
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value &= ~flag_value
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str += " " + n
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if value == 0:
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break
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if value:
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str += " (0x%0x)" % (value,)
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return str.lstrip()
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def flags_to_security(flags, wpa_flags, rsn_flags):
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def genum_to_str(enum_type, value):
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for n in sorted(dir(enum_type)):
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if not re.search("^[A-Z0-9_]+$", n):
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continue
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enum_value = getattr(enum_type, n)
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if value == enum_value:
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return n
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return "(%d" % (value,)
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def ap_security_flags_to_security(flags, wpa_flags, rsn_flags):
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str = ""
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if (
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(flags & getattr(NM, "80211ApFlags").PRIVACY)
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and (wpa_flags == 0)
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and (rsn_flags == 0)
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):
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if (flags & NM80211ApFlags.PRIVACY) and (wpa_flags == 0) and (rsn_flags == 0):
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str = str + " WEP"
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if wpa_flags != 0:
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str = str + " WPA1"
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if rsn_flags != 0:
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str = str + " WPA2"
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if (wpa_flags & getattr(NM, "80211ApSecurityFlags").KEY_MGMT_802_1X) or (
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rsn_flags & getattr(NM, "80211ApSecurityFlags").KEY_MGMT_802_1X
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if (wpa_flags & NM80211ApSecurityFlags.KEY_MGMT_802_1X) or (
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rsn_flags & NM80211ApSecurityFlags.KEY_MGMT_802_1X
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):
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str = str + " 802.1X"
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return str.lstrip()
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def ap_get_ssid(ap):
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if ap is None:
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return "not connected"
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ssid = ap.get_ssid()
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if ssid is None:
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return "no ssid"
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return '"%s"' % (NM.utils_ssid_to_utf8(ssid.get_data()),)
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def print_device_info(device):
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if device.get_client() is None:
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last_scan = "device disappeared"
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else:
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t = device.get_last_scan()
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if t == 0:
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last_scan = "no scan completed"
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else:
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t = (NM.utils_get_timestamp_msec() - t) / 1000.0
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last_scan = "%0.2f sec ago" % (t,)
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if device_needs_scan(device):
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last_scan += " (stale)"
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ap = device.get_active_access_point()
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if ap is None:
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active_ap = "none"
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else:
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active_ap = "%s (%s)" % (ap_get_ssid(ap), ap.get_path())
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print("Device: %s" % (device.get_iface(),))
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print("D-Bus path: %s" % (NM.Object.get_path(device),))
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print("Driver: %s" % (device.get_driver(),))
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print("Active AP: %s" % (active_ap,))
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print("Last scan: %s" % (last_scan,))
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def print_ap_info(ap):
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strength = ap.get_strength()
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frequency = ap.get_frequency()
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flags = ap.get_flags()
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wpa_flags = ap.get_wpa_flags()
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rsn_flags = ap.get_rsn_flags()
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print("SSID: %s" % (ssid_to_utf8(ap)))
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print("BSSID: %s" % (ap.get_bssid()))
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print("Frequency: %s" % (frequency))
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print("Channel: %s" % (NM.utils_wifi_freq_to_channel(frequency)))
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print("Mode: %s" % (mode_to_string(ap.get_mode())))
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print("Flags: %s" % (flags_to_string(flags)))
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print("WPA flags: %s" % (security_flags_to_string(wpa_flags)))
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print("RSN flags: %s" % (security_flags_to_string(rsn_flags)))
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print("Security: %s" % (flags_to_security(flags, wpa_flags, rsn_flags)))
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print("Strength: %s %s%%" % (NM.utils_wifi_strength_bars(strength), strength))
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print
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t = ap.get_last_seen()
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if t < 0:
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last_seen = "never"
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else:
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t = time.clock_gettime(time.CLOCK_BOOTTIME) - t
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last_seen = "%s sec ago" % (math.ceil(t),)
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print(" - D-Bus path: %s" % (ap.get_path(),))
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print(" SSID: %s" % (ap_get_ssid(ap),))
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print(" BSSID: %s" % (ap.get_bssid(),))
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print(" Last seen: %s" % (last_seen,))
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print(" Frequency: %s" % (frequency,))
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print(" Channel: %s" % (NM.utils_wifi_freq_to_channel(frequency),))
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print(" Mode: %s" % (genum_to_str(NM80211Mode, ap.get_mode()),))
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print(" Flags: %s" % (gflags_to_str(NM80211ApFlags, flags),))
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print(" WPA flags: %s" % (gflags_to_str(NM80211ApSecurityFlags, wpa_flags),))
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print(" RSN flags: %s" % (gflags_to_str(NM80211ApSecurityFlags, rsn_flags),))
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print(
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" Security: %s"
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% (ap_security_flags_to_security(flags, wpa_flags, rsn_flags),)
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)
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print(
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" Strength: %s%% : %s"
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% (
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strength,
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NM.utils_wifi_strength_bars(strength),
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)
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)
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if __name__ == "__main__":
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def device_needs_scan(device):
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if device.get_client() is None:
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# the device got deleted. We can forget about it.
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return False
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t = device.get_last_scan()
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return t == 0 or t < NM.utils_get_timestamp_msec() - SCAN_THRESHOLD_MSEC
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def device_ensure_scanned(device):
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if os.getenv("NO_SCAN") == "1":
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return
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if not device_needs_scan(device):
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return
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# kick off a new scan.
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device.request_scan_async(None)
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def cb():
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main_loop.quit()
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timeout_source = GLib.timeout_source_new(10 * 1000)
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timeout_source.set_callback(cb)
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timeout_source.attach(main_loop.get_context())
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def cb(device, prop):
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if not device_needs_scan(device):
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main_loop.quit()
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device.connect("notify", cb)
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main_loop.run()
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timeout_source.destroy()
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def main():
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# Python apparently doesn't call setlocale() on its own? We have to call this or else
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# NM.utils_wifi_strength_bars() will think the locale is ASCII-only, and return the
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# fallback characters rather than the unicode bars
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@ -137,8 +193,21 @@ if __name__ == "__main__":
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nmc = NM.Client.new(None)
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devs = nmc.get_devices()
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for dev in devs:
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if dev.get_device_type() == NM.DeviceType.WIFI:
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print_device_info(dev)
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for ap in dev.get_access_points():
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print_ap_info(ap)
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is_first = True
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for device in devs:
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if device.get_device_type() != NM.DeviceType.WIFI:
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continue
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if not is_first:
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print("")
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else:
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is_first = False
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device_ensure_scanned(device)
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print_device_info(device)
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for ap in device.get_access_points():
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print_ap_info(ap)
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if __name__ == "__main__":
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main()
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