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wifi: add NM_ACTIVE_AP_DEBUG to help debug active ap issues

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This commit is contained in:
Dan Williams 2009-03-03 07:18:16 -05:00
parent 9d7f5b3d08
commit bd59da953b
1 changed files with 65 additions and 7 deletions
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72
src/nm-device-wifi.c
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@ -15,7 +15,7 @@
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2005 - 2008 Red Hat, Inc.
* Copyright (C) 2005 - 2009 Red Hat, Inc.
* Copyright (C) 2006 - 2008 Novell, Inc.
*/
@ -731,48 +731,106 @@ get_active_ap (NMDeviceWifi *self,
gboolean match_hidden)
{
NMDeviceWifiPrivate *priv = NM_DEVICE_WIFI_GET_PRIVATE (self);
const char *iface = nm_device_get_iface (NM_DEVICE (self));
struct ether_addr bssid;
const GByteArray *ssid;
GSList *iter;
int i = 0;
gboolean ap_debug = getenv ("NM_ACTIVE_AP_DEBUG") ? TRUE : FALSE;
nm_device_wifi_get_bssid (self, &bssid);
if (G_UNLIKELY (ap_debug)) {
nm_debug ("(%s) BSSID: %02x:%02x:%02x:%02x:%02x:%02x",
iface,
bssid.ether_addr_octet[0], bssid.ether_addr_octet[1],
bssid.ether_addr_octet[2], bssid.ether_addr_octet[3],
bssid.ether_addr_octet[4], bssid.ether_addr_octet[5]);
}
if (!nm_ethernet_address_is_valid (&bssid))
return NULL;
ssid = nm_device_wifi_get_ssid (self);
if G_UNLIKELY (ap_debug) {
nm_debug ("(%s) SSID: %s%s%s",
iface,
ssid ? "'" : "",
ssid ? nm_utils_escape_ssid (ssid->data, ssid->len) : "(none)",
ssid ? "'" : "");
}
/* When matching hidden APs, do a second pass that ignores the SSID check,
* because NM might not yet know the SSID of the hidden AP in the scan list
* and therefore it won't get matched the first time around.
*/
while (i++ < (match_hidden ? 2 : 1)) {
if G_UNLIKELY (ap_debug)
nm_debug (" Pass #%d %s", i, i > 1 ? "(ignoring SSID)" : "");
/* Find this SSID + BSSID in the device's AP list */
for (iter = priv->ap_list; iter; iter = g_slist_next (iter)) {
NMAccessPoint *ap = NM_AP (iter->data);
const struct ether_addr *ap_bssid = nm_ap_get_address (ap);
const GByteArray *ap_ssid = nm_ap_get_ssid (ap);
NM80211Mode devmode, apmode;
guint32 devfreq, apfreq;
if (ignore_ap && (ap == ignore_ap))
continue;
if G_UNLIKELY (ap_debug) {
nm_debug (" AP: %s%s%s %02x:%02x:%02x:%02x:%02x:%02x",
ap_ssid ? "'" : "",
ap_ssid ? nm_utils_escape_ssid (ap_ssid->data, ap_ssid->len) : "(none)",
ap_ssid ? "'" : "",
ap_bssid->ether_addr_octet[0], ap_bssid->ether_addr_octet[1],
ap_bssid->ether_addr_octet[2], ap_bssid->ether_addr_octet[3],
ap_bssid->ether_addr_octet[4], ap_bssid->ether_addr_octet[5]);
}
if (memcmp (bssid.ether_addr_octet, ap_bssid->ether_addr_octet, ETH_ALEN))
if (ignore_ap && (ap == ignore_ap)) {
if G_UNLIKELY (ap_debug)
nm_debug (" ignored");
continue;
}
if ((i == 0) && !nm_utils_same_ssid (ssid, ap_ssid, TRUE))
if (memcmp (bssid.ether_addr_octet, ap_bssid->ether_addr_octet, ETH_ALEN)) {
if G_UNLIKELY (ap_debug)
nm_debug (" BSSID mismatch");
continue;
}
if (nm_device_wifi_get_mode (self) != nm_ap_get_mode (ap))
if ((i == 0) && !nm_utils_same_ssid (ssid, ap_ssid, TRUE)) {
if G_UNLIKELY (ap_debug)
nm_debug (" SSID mismatch");
continue;
}
if (nm_device_wifi_get_frequency (self) != nm_ap_get_freq (ap))
devmode = nm_device_wifi_get_mode (self);
apmode = nm_ap_get_mode (ap);
if (devmode != apmode) {
if G_UNLIKELY (ap_debug) {
nm_debug (" mode mismatch (device %d, ap %d)",
devmode, apmode);
}
continue;
}
devfreq = nm_device_wifi_get_frequency (self);
apfreq = nm_ap_get_freq (ap);
if (devfreq != apfreq) {
if G_UNLIKELY (ap_debug) {
nm_debug (" frequency mismatch (device %u, ap %u)",
devfreq, apfreq);
}
continue;
}
// FIXME: handle security settings here too
if G_UNLIKELY (ap_debug)
nm_debug (" matched");
return ap;
}
}
if G_UNLIKELY (ap_debug)
nm_debug (" No matching AP found.");
return NULL;
}