Re: NM does not work with iwl4965 device
- From: Thomas M Steenholdt <tmus tmus dk>
- To: networkmanager-list gnome org
- Subject: Re: NM does not work with iwl4965 device
- Date: Tue, 07 Aug 2007 00:28:02 -0200
Thomas M Steenholdt wrote:
I'll force it to use 1 or 2 this evening, and see what kind of success
that will give me.
I'll keep you guys posted.
I've been experimenting a bit tonight and this is what I've found.
AP_SCAN 2 : ESSID is set on the wireless device, but it never
associates. Presumably because it cannot find the AP.
AP_SCAN 1: ESSID does NOT get set on the wireless device, so does not
work alone - during the device setup phase, if you issue an "iwconfig
wlan0 essid whatever", the device will associate fine.
So I made a patch to incorporate the two and to prove a point. :)
Please note, that this patch is intended to prove that the association
to hidden IS possible, even with ipw4965 devices. The patch changes the
AP_SCAN value for hidden networks and I have no clue as to what that
will do for other wireless devices. Also, since I've not gotten
acquainted to very much of the NetworkManager code, there might be
better places to put some of these things. So it should at the very
least be reviewed by someone more familiar with the code than myself.
(there - the disclaimer is double the size of the patch itself ;-p)
Try it out and let me know how it works for you.
My testing was performed on Fedora 7 - 0.6.5 version of NetworkManager.
Obviously 0.6.5 is also the version that this patch is most likely to
Good luck. Patch below!
2007-06-07 13:22:21.000000000 -0200
+++ NetworkManager-0.6.5/src/nm-device-802-11-wireless.c 2007-08-07
@@ -2838,13 +2838,19 @@
|| (caps & NM_802_11_CAP_PROTO_WPA2);
/* Use "AP_SCAN 2" if:
- * - The wireless network is non-broadcast or Ad-Hoc
+ * - The wireless network is Ad-Hoc
* - The wireless driver does not support WPA (stupid drivers...)
is_adhoc = (nm_ap_get_mode(ap) == IW_MODE_ADHOC);
- if (!nm_ap_get_broadcast (ap) || is_adhoc || !supports_wpa)
+ if (is_adhoc || !supports_wpa)
ap_scan = "AP_SCAN 2";
+ /* Use "AP_SCAN 1" if:
+ * - The wireless network is non-broadcast
+ if (!nm_ap_get_broadcast (ap))
+ ap_scan = "AP_SCAN 1";
/* Tell wpa_supplicant that we'll do the scanning */
if (!nm_utils_supplicant_request_with_check (ctrl, "OK", __func__,
@@ -2877,6 +2883,14 @@
if (!nm_ap_get_broadcast (ap) && !is_adhoc)
+ * since using "AP_SCAN 1" for hidden networks, wpa_supplicant
+ * does not seem to bring the essid to the device anymore...
+ * perhaps this is a wpa_supplicant/wext/driver issue or perhaps this
+ * is simply how it is. We set the ESSID here for now.
+ nm_device_802_11_wireless_set_essid(self, essid);
if (!nm_utils_supplicant_request_with_check (ctrl, "OK", __func__, NULL,
"SET_NETWORK %i scan_ssid 1", nwid))
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