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wl1271: fixed problem with WPS IEs in probe requests 

Inclusion of a WPS IE in probe requests caused a problem
in the driver due to the maximum size of the probe request
template and the max_scan_ie_len values at initialization.

Increased the size of probe request template
to the maximum size allowed by the firmware.
Struct wl12xx_probe_req_template, which was only used
for calculating the max size of the probe request template,
is no longer used and needed.

max_scan_ie_len is used for validating the size of
additional IEs in scan requests.
Initialized the max_scan_ie_len field to the maximum size
of the probe request template minus the ieee80211 header size.

Signed-off-by: Guy Eilam <guy@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
This commit is contained in:
Guy Eilam 2010-12-09 16:54:59 +02:00 committed by Luciano Coelho
parent c531277215
commit ea559b4605
3 changed files with 9 additions and 11 deletions
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6
drivers/net/wireless/wl12xx/init.c
View File

@ -53,18 +53,16 @@ static int wl1271_init_hwenc_config(struct wl1271 *wl)
int wl1271_init_templates_config(struct wl1271 *wl)
{
int ret, i;
size_t size;
/* send empty templates for fw memory reservation */
ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4, NULL,
sizeof(struct wl12xx_probe_req_template),
WL1271_CMD_TEMPL_MAX_SIZE,
0, WL1271_RATE_AUTOMATIC);
if (ret < 0)
return ret;
size = sizeof(struct wl12xx_probe_req_template);
ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
NULL, size, 0,
NULL, WL1271_CMD_TEMPL_MAX_SIZE, 0,
WL1271_RATE_AUTOMATIC);
if (ret < 0)
return ret;

7
drivers/net/wireless/wl12xx/main.c
View File

@ -2666,6 +2666,13 @@ int wl1271_init_ieee80211(struct wl1271 *wl)
wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
wl->hw->wiphy->max_scan_ssids = 1;
/*
* Maximum length of elements in scanning probe request templates
* should be the maximum length possible for a template, without
* the IEEE80211 header of the template
*/
wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
sizeof(struct ieee80211_header);
wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz;
wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;

7
drivers/net/wireless/wl12xx/wl12xx_80211.h
View File

@ -134,13 +134,6 @@ struct wl12xx_qos_null_data_template {
__le16 qos_ctl;
} __packed;
struct wl12xx_probe_req_template {
struct ieee80211_header header;
struct wl12xx_ie_ssid ssid;
struct wl12xx_ie_rates rates;
struct wl12xx_ie_rates ext_rates;
} __packed;
struct wl12xx_arp_rsp_template {
struct ieee80211_hdr_3addr hdr;