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rndis_wlan: Make connections to TKIP PSK networks work 

This patch allows the rndis_wlan driver to connect to TKIP PSK
networks.  It uses the ASSOCIATION_INFORMATION RNDIS call to pull back
the IEs and sends them back to userspace using wireless events. Tested
on a few wireless networks I have access to. Based on the similar
code in ndiswrapper.

Signed-off-by: Scott Ashcroft <scott.ashcroft@talk21.com>
[edit: cleanups]
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Scott Ashcroft 2008-05-27 00:06:15 +03:00 committed by John W. Linville
parent d4231ca3e1
commit 4364623cb7
1 changed files with 58 additions and 2 deletions
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60
drivers/net/wireless/rndis_wlan.c
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@ -116,6 +116,7 @@ MODULE_PARM_DESC(workaround_interval,
#define OID_802_11_ENCRYPTION_STATUS ccpu2(0x0d01011b) #define OID_802_11_ENCRYPTION_STATUS ccpu2(0x0d01011b)
#define OID_802_11_ADD_KEY ccpu2(0x0d01011d) #define OID_802_11_ADD_KEY ccpu2(0x0d01011d)
#define OID_802_11_REMOVE_KEY ccpu2(0x0d01011e) #define OID_802_11_REMOVE_KEY ccpu2(0x0d01011e)
#define OID_802_11_ASSOCIATION_INFORMATION ccpu2(0x0d01011f)
#define OID_802_11_PMKID ccpu2(0x0d010123) #define OID_802_11_PMKID ccpu2(0x0d010123)
#define OID_802_11_NETWORK_TYPES_SUPPORTED ccpu2(0x0d010203) #define OID_802_11_NETWORK_TYPES_SUPPORTED ccpu2(0x0d010203)
#define OID_802_11_NETWORK_TYPE_IN_USE ccpu2(0x0d010204) #define OID_802_11_NETWORK_TYPE_IN_USE ccpu2(0x0d010204)
@ -271,6 +272,26 @@ struct ndis_config_param {
__le32 value_length; __le32 value_length;
} __attribute__((packed)); } __attribute__((packed));
struct ndis_80211_assoc_info {
__le32 length;
__le16 req_ies;
struct req_ie {
__le16 capa;
__le16 listen_interval;
u8 cur_ap_address[6];
} req_ie;
__le32 req_ie_length;
__le32 offset_req_ies;
__le16 resp_ies;
struct resp_ie {
__le16 capa;
__le16 status_code;
__le16 assoc_id;
} resp_ie;
__le32 resp_ie_length;
__le32 offset_resp_ies;
} __attribute__((packed));
/* these have to match what is in wpa_supplicant */ /* these have to match what is in wpa_supplicant */
enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP }; enum wpa_alg { WPA_ALG_NONE, WPA_ALG_WEP, WPA_ALG_TKIP, WPA_ALG_CCMP };
enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP, enum wpa_cipher { CIPHER_NONE, CIPHER_WEP40, CIPHER_TKIP, CIPHER_CCMP,
@ -674,6 +695,12 @@ static int get_bssid(struct usbnet *usbdev, u8 bssid[ETH_ALEN])
return ret; return ret;
} }
static int get_association_info(struct usbnet *usbdev,
struct ndis_80211_assoc_info *info, int len)
{
return rndis_query_oid(usbdev, OID_802_11_ASSOCIATION_INFORMATION,
info, &len);
}
static int is_associated(struct usbnet *usbdev) static int is_associated(struct usbnet *usbdev)
{ {
@ -2182,11 +2209,40 @@ static void rndis_wext_worker(struct work_struct *work)
struct usbnet *usbdev = priv->usbdev; struct usbnet *usbdev = priv->usbdev;
union iwreq_data evt; union iwreq_data evt;
unsigned char bssid[ETH_ALEN]; unsigned char bssid[ETH_ALEN];
int ret; struct ndis_80211_assoc_info *info;
int assoc_size = sizeof(*info) + IW_CUSTOM_MAX + 32;
int ret, offset;
if (test_and_clear_bit(WORK_CONNECTION_EVENT, &priv->work_pending)) { if (test_and_clear_bit(WORK_CONNECTION_EVENT, &priv->work_pending)) {
ret = get_bssid(usbdev, bssid); info = kzalloc(assoc_size, GFP_KERNEL);
if (!info)
goto get_bssid;
/* Get association info IEs from device and send them back to
* userspace. */
ret = get_association_info(usbdev, info, assoc_size);
if (!ret) {
evt.data.length = le32_to_cpu(info->req_ie_length);
if (evt.data.length > 0) {
offset = le32_to_cpu(info->offset_req_ies);
wireless_send_event(usbdev->net,
IWEVASSOCREQIE, &evt,
(char *)info + offset);
}
evt.data.length = le32_to_cpu(info->resp_ie_length);
if (evt.data.length > 0) {
offset = le32_to_cpu(info->offset_resp_ies);
wireless_send_event(usbdev->net,
IWEVASSOCRESPIE, &evt,
(char *)info + offset);
}
}
kfree(info);
get_bssid:
ret = get_bssid(usbdev, bssid);
if (!ret) { if (!ret) {
evt.data.flags = 0; evt.data.flags = 0;
evt.data.length = 0; evt.data.length = 0;