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introduce WEXT scan capabilities

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Introduce scan capabilities to WEXT so that userspace can do intelligent
things with scan behavior such as handling hidden SSIDs more gracefully.
If the driver reports a specific scan capability, the driver must
respect the options specified in the iw_scan_req structure when handling
the SIOCSIWSCAN call, unless it's mode or state does not allow it to do
so, in which case it must return an error.

This version switches to Dave Kilroy's suggestion of claiming unused
padding space for the scan_capa field.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dan Williams
2007-12-12 10:25:07 -05:00
committed by David S. Miller
parent c49e5ea322
commit 374fdfbc67
4 changed files with 20 additions and 0 deletions
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3
drivers/net/wireless/hostap/hostap_ioctl.c
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@@ -1089,6 +1089,9 @@ static int prism2_ioctl_giwrange(struct net_device *dev,
range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1))
range->scan_capa = IW_SCAN_CAPA_ESSID;
return 0;
}