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Commit e86dc1ca authored by Kiran Divekar's avatar Kiran Divekar Committed by John W. Linville
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Libertas: cfg80211 support 

Holger Schurig's patch (https://patchwork.kernel.org/patch/64286/)
is rebased to latest wireless-testing tree.

(Includes patches from me originally posted as "libertas: fix build
error due to undefined symbol" and "libertas: unmangle capability
value". -- JWL)
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarKiran Divekar <dkiran@marvell.com>
Tested-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent f90754c1
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Showing with 1983 additions and 6724 deletions
drivers/net/wireless/libertas/Makefile
View file @ e86dc1ca
libertas-y += assoc.o
libertas-y += cfg.o
libertas-y += cmd.o
libertas-y += cmdresp.o
......@@ -6,9 +5,7 @@ libertas-y += debugfs.o
libertas-y += ethtool.o
libertas-y += main.o
libertas-y += rx.o
libertas-y += scan.o
libertas-y += tx.o
libertas-y += wext.o
libertas-$(CONFIG_LIBERTAS_MESH) += mesh.o
usb8xxx-objs += if_usb.o
......
drivers/net/wireless/libertas/assoc.c deleted 100644 → 0
View file @ f90754c1
/* Copyright (C) 2006, Red Hat, Inc. */
#include <linux/types.h>
#include <linux/etherdevice.h>
#include <linux/ieee80211.h>
#include <linux/if_arp.h>
#include <linux/slab.h>
#include <net/lib80211.h>
#include "assoc.h"
#include "decl.h"
#include "host.h"
#include "scan.h"
#include "cmd.h"
static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) =
{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
static const u8 bssid_off[ETH_ALEN] __attribute__ ((aligned (2))) =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
/* The firmware needs the following bits masked out of the beacon-derived
* capability field when associating/joining to a BSS:
* 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
*/
#define CAPINFO_MASK (~(0xda00))
/**
* 802.11b/g supported bitrates (in 500Kb/s units)
*/
u8 lbs_bg_rates[MAX_RATES] =
{ 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
0x00, 0x00 };
static int assoc_helper_wep_keys(struct lbs_private *priv,
struct assoc_request *assoc_req);
/**
* @brief This function finds common rates between rates and card rates.
*
* It will fill common rates in rates as output if found.
*
* NOTE: Setting the MSB of the basic rates need to be taken
* care, either before or after calling this function
*
* @param priv A pointer to struct lbs_private structure
* @param rates the buffer which keeps input and output
* @param rates_size the size of rates buffer; new size of buffer on return,
* which will be less than or equal to original rates_size
*
* @return 0 on success, or -1 on error
*/
static int get_common_rates(struct lbs_private *priv,
u8 *rates,
u16 *rates_size)
{
int i, j;
u8 intersection[MAX_RATES];
u16 intersection_size;
u16 num_rates = 0;
intersection_size = min_t(u16, *rates_size, ARRAY_SIZE(intersection));
/* Allow each rate from 'rates' that is supported by the hardware */
for (i = 0; i < ARRAY_SIZE(lbs_bg_rates) && lbs_bg_rates[i]; i++) {
for (j = 0; j < intersection_size && rates[j]; j++) {
if (rates[j] == lbs_bg_rates[i])
intersection[num_rates++] = rates[j];
}
}
lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
lbs_deb_hex(LBS_DEB_JOIN, "card rates ", lbs_bg_rates,
ARRAY_SIZE(lbs_bg_rates));
lbs_deb_hex(LBS_DEB_JOIN, "common rates", intersection, num_rates);
lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
if (!priv->enablehwauto) {
for (i = 0; i < num_rates; i++) {
if (intersection[i] == priv->cur_rate)
goto done;
}
lbs_pr_alert("Previously set fixed data rate %#x isn't "
"compatible with the network.\n", priv->cur_rate);
return -1;
}
done:
memset(rates, 0, *rates_size);
*rates_size = num_rates;
memcpy(rates, intersection, num_rates);
return 0;
}
/**
* @brief Sets the MSB on basic rates as the firmware requires
*
* Scan through an array and set the MSB for basic data rates.
*
* @param rates buffer of data rates
* @param len size of buffer
*/
static void lbs_set_basic_rate_flags(u8 *rates, size_t len)
{
int i;
for (i = 0; i < len; i++) {
if (rates[i] == 0x02 || rates[i] == 0x04 ||
rates[i] == 0x0b || rates[i] == 0x16)
rates[i] |= 0x80;
}
}
static u8 iw_auth_to_ieee_auth(u8 auth)
{
if (auth == IW_AUTH_ALG_OPEN_SYSTEM)
return 0x00;
else if (auth == IW_AUTH_ALG_SHARED_KEY)
return 0x01;
else if (auth == IW_AUTH_ALG_LEAP)
return 0x80;
lbs_deb_join("%s: invalid auth alg 0x%X\n", __func__, auth);
return 0;
}
/**
* @brief This function prepares the authenticate command. AUTHENTICATE only
* sets the authentication suite for future associations, as the firmware
* handles authentication internally during the ASSOCIATE command.
*
* @param priv A pointer to struct lbs_private structure
* @param bssid The peer BSSID with which to authenticate
* @param auth The authentication mode to use (from wireless.h)
*
* @return 0 or -1
*/
static int lbs_set_authentication(struct lbs_private *priv, u8 bssid[6], u8 auth)
{
struct cmd_ds_802_11_authenticate cmd;
int ret = -1;
lbs_deb_enter(LBS_DEB_JOIN);
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
memcpy(cmd.bssid, bssid, ETH_ALEN);
cmd.authtype = iw_auth_to_ieee_auth(auth);
lbs_deb_join("AUTH_CMD: BSSID %pM, auth 0x%x\n", bssid, cmd.authtype);
ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
return ret;
}
int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
struct assoc_request *assoc)
{
struct cmd_ds_802_11_set_wep cmd;
int ret = 0;
lbs_deb_enter(LBS_DEB_CMD);
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(cmd_action);
if (cmd_action == CMD_ACT_ADD) {
int i;
/* default tx key index */
cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
CMD_WEP_KEY_INDEX_MASK);
/* Copy key types and material to host command structure */
for (i = 0; i < 4; i++) {
struct enc_key *pkey = &assoc->wep_keys[i];
switch (pkey->len) {
case KEY_LEN_WEP_40:
cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
memmove(cmd.keymaterial[i], pkey->key, pkey->len);
lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
break;
case KEY_LEN_WEP_104:
cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
memmove(cmd.keymaterial[i], pkey->key, pkey->len);
lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
break;
case 0:
break;
default:
lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
i, pkey->len);
ret = -1;
goto done;
break;
}
}
} else if (cmd_action == CMD_ACT_REMOVE) {
/* ACT_REMOVE clears _all_ WEP keys */
/* default tx key index */
cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
CMD_WEP_KEY_INDEX_MASK);
lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
}
ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
done:
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
uint16_t *enable)
{
struct cmd_ds_802_11_enable_rsn cmd;
int ret;
lbs_deb_enter(LBS_DEB_CMD);
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(cmd_action);
if (cmd_action == CMD_ACT_GET)
cmd.enable = 0;
else {
if (*enable)
cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
else
cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
}
ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
if (!ret && cmd_action == CMD_ACT_GET)
*enable = le16_to_cpu(cmd.enable);
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
struct enc_key *key)
{
lbs_deb_enter(LBS_DEB_CMD);
if (key->flags & KEY_INFO_WPA_ENABLED)
keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
if (key->flags & KEY_INFO_WPA_UNICAST)
keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
if (key->flags & KEY_INFO_WPA_MCAST)
keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
keyparam->keytypeid = cpu_to_le16(key->type);
keyparam->keylen = cpu_to_le16(key->len);
memcpy(keyparam->key, key->key, key->len);
/* Length field doesn't include the {type,length} header */
keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
lbs_deb_leave(LBS_DEB_CMD);
}
int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
struct assoc_request *assoc)
{
struct cmd_ds_802_11_key_material cmd;
int ret = 0;
int index = 0;
lbs_deb_enter(LBS_DEB_CMD);
cmd.action = cpu_to_le16(cmd_action);
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
if (cmd_action == CMD_ACT_GET) {
cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_header) + 2);
} else {
memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
set_one_wpa_key(&cmd.keyParamSet[index],
&assoc->wpa_unicast_key);
index++;
}
if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
set_one_wpa_key(&cmd.keyParamSet[index],
&assoc->wpa_mcast_key);
index++;
}
/* The common header and as many keys as we included */
cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
keyParamSet[index]));
}
ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
/* Copy the returned key to driver private data */
if (!ret && cmd_action == CMD_ACT_GET) {
void *buf_ptr = cmd.keyParamSet;
void *resp_end = &(&cmd)[1];
while (buf_ptr < resp_end) {
struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
struct enc_key *key;
uint16_t param_set_len = le16_to_cpu(keyparam->length);
uint16_t key_len = le16_to_cpu(keyparam->keylen);
uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
void *end;
end = (void *)keyparam + sizeof(keyparam->type)
+ sizeof(keyparam->length) + param_set_len;
/* Make sure we don't access past the end of the IEs */
if (end > resp_end)
break;
if (key_flags & KEY_INFO_WPA_UNICAST)
key = &priv->wpa_unicast_key;
else if (key_flags & KEY_INFO_WPA_MCAST)
key = &priv->wpa_mcast_key;
else
break;
/* Copy returned key into driver */
memset(key, 0, sizeof(struct enc_key));
if (key_len > sizeof(key->key))
break;
key->type = key_type;
key->flags = key_flags;
key->len = key_len;
memcpy(key->key, keyparam->key, key->len);
buf_ptr = end + 1;
}
}
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
{
/* Bit Rate
* 15:13 Reserved
* 12 54 Mbps
* 11 48 Mbps
* 10 36 Mbps
* 9 24 Mbps
* 8 18 Mbps
* 7 12 Mbps
* 6 9 Mbps
* 5 6 Mbps
* 4 Reserved
* 3 11 Mbps
* 2 5.5 Mbps
* 1 2 Mbps
* 0 1 Mbps
**/
uint16_t ratemask;
int i = lbs_data_rate_to_fw_index(rate);
if (lower_rates_ok)
ratemask = (0x1fef >> (12 - i));
else
ratemask = (1 << i);
return cpu_to_le16(ratemask);
}
int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
uint16_t cmd_action)
{
struct cmd_ds_802_11_rate_adapt_rateset cmd;
int ret;
lbs_deb_enter(LBS_DEB_CMD);
if (!priv->cur_rate && !priv->enablehwauto)
return -EINVAL;
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(cmd_action);
cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
if (!ret && cmd_action == CMD_ACT_GET)
priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
/**
* @brief Set the data rate
*
* @param priv A pointer to struct lbs_private structure
* @param rate The desired data rate, or 0 to clear a locked rate
*
* @return 0 on success, error on failure
*/
int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
{
struct cmd_ds_802_11_data_rate cmd;
int ret = 0;
lbs_deb_enter(LBS_DEB_CMD);
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
if (rate > 0) {
cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
if (cmd.rates[0] == 0) {
lbs_deb_cmd("DATA_RATE: invalid requested rate of"
" 0x%02X\n", rate);
ret = 0;
goto out;
}
lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
} else {
cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
lbs_deb_cmd("DATA_RATE: setting auto\n");
}
ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
if (ret)
goto out;
lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof(cmd));
/* FIXME: get actual rates FW can do if this command actually returns
* all data rates supported.
*/
priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
out:
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
int lbs_cmd_802_11_rssi(struct lbs_private *priv,
struct cmd_ds_command *cmd)
{
lbs_deb_enter(LBS_DEB_CMD);
cmd->command = cpu_to_le16(CMD_802_11_RSSI);
cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) +
sizeof(struct cmd_header));
cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
/* reset Beacon SNR/NF/RSSI values */
priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
lbs_deb_leave(LBS_DEB_CMD);
return 0;
}
int lbs_ret_802_11_rssi(struct lbs_private *priv,
struct cmd_ds_command *resp)
{
struct cmd_ds_802_11_rssi_rsp *rssirsp = &resp->params.rssirsp;
lbs_deb_enter(LBS_DEB_CMD);
/* store the non average value */
priv->SNR[TYPE_BEACON][TYPE_NOAVG] = get_unaligned_le16(&rssirsp->SNR);
priv->NF[TYPE_BEACON][TYPE_NOAVG] =
get_unaligned_le16(&rssirsp->noisefloor);
priv->SNR[TYPE_BEACON][TYPE_AVG] = get_unaligned_le16(&rssirsp->avgSNR);
priv->NF[TYPE_BEACON][TYPE_AVG] =
get_unaligned_le16(&rssirsp->avgnoisefloor);
priv->RSSI[TYPE_BEACON][TYPE_NOAVG] =
CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
priv->NF[TYPE_BEACON][TYPE_NOAVG]);
priv->RSSI[TYPE_BEACON][TYPE_AVG] =
CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_AVG] / AVG_SCALE,
priv->NF[TYPE_BEACON][TYPE_AVG] / AVG_SCALE);
lbs_deb_cmd("RSSI: beacon %d, avg %d\n",
priv->RSSI[TYPE_BEACON][TYPE_NOAVG],
priv->RSSI[TYPE_BEACON][TYPE_AVG]);
lbs_deb_leave(LBS_DEB_CMD);
return 0;
}
int lbs_cmd_bcn_ctrl(struct lbs_private *priv,
struct cmd_ds_command *cmd,
u16 cmd_action)
{
struct cmd_ds_802_11_beacon_control
*bcn_ctrl = &cmd->params.bcn_ctrl;
lbs_deb_enter(LBS_DEB_CMD);
cmd->size =
cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
+ sizeof(struct cmd_header));
cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
bcn_ctrl->action = cpu_to_le16(cmd_action);
bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
lbs_deb_leave(LBS_DEB_CMD);
return 0;
}
int lbs_ret_802_11_bcn_ctrl(struct lbs_private *priv,
struct cmd_ds_command *resp)
{
struct cmd_ds_802_11_beacon_control *bcn_ctrl =
&resp->params.bcn_ctrl;
lbs_deb_enter(LBS_DEB_CMD);
if (bcn_ctrl->action == CMD_ACT_GET) {
priv->beacon_enable = (u8) le16_to_cpu(bcn_ctrl->beacon_enable);
priv->beacon_period = le16_to_cpu(bcn_ctrl->beacon_period);
}
lbs_deb_enter(LBS_DEB_CMD);
return 0;
}
static int lbs_assoc_post(struct lbs_private *priv,
struct cmd_ds_802_11_associate_response *resp)
{
int ret = 0;
union iwreq_data wrqu;
struct bss_descriptor *bss;
u16 status_code;
lbs_deb_enter(LBS_DEB_ASSOC);
if (!priv->in_progress_assoc_req) {
lbs_deb_assoc("ASSOC_RESP: no in-progress assoc request\n");
ret = -1;
goto done;
}
bss = &priv->in_progress_assoc_req->bss;
/*
* Older FW versions map the IEEE 802.11 Status Code in the association
* response to the following values returned in resp->statuscode:
*
* IEEE Status Code Marvell Status Code
* 0 -> 0x0000 ASSOC_RESULT_SUCCESS
* 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* others -> 0x0003 ASSOC_RESULT_REFUSED
*
* Other response codes:
* 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
* 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
* association response from the AP)
*/
status_code = le16_to_cpu(resp->statuscode);
if (priv->fwrelease < 0x09000000) {
switch (status_code) {
case 0x00:
break;
case 0x01:
lbs_deb_assoc("ASSOC_RESP: invalid parameters\n");
break;
case 0x02:
lbs_deb_assoc("ASSOC_RESP: internal timer "
"expired while waiting for the AP\n");
break;
case 0x03:
lbs_deb_assoc("ASSOC_RESP: association "
"refused by AP\n");
break;
case 0x04:
lbs_deb_assoc("ASSOC_RESP: authentication "
"refused by AP\n");
break;
default:
lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x "
" unknown\n", status_code);
break;
}
} else {
/* v9+ returns the AP's association response */
lbs_deb_assoc("ASSOC_RESP: failure reason 0x%02x\n", status_code);
}
if (status_code) {
lbs_mac_event_disconnected(priv);
ret = status_code;
goto done;
}
lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP",
(void *) (resp + sizeof (resp->hdr)),
le16_to_cpu(resp->hdr.size) - sizeof (resp->hdr));
/* Send a Media Connected event, according to the Spec */
priv->connect_status = LBS_CONNECTED;
/* Update current SSID and BSSID */
memcpy(&priv->curbssparams.ssid, &bss->ssid, IEEE80211_MAX_SSID_LEN);
priv->curbssparams.ssid_len = bss->ssid_len;
memcpy(priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
priv->SNR[TYPE_RXPD][TYPE_AVG] = 0;
priv->NF[TYPE_RXPD][TYPE_AVG] = 0;
memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
priv->nextSNRNF = 0;
priv->numSNRNF = 0;
netif_carrier_on(priv->dev);
if (!priv->tx_pending_len)
netif_wake_queue(priv->dev);
memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
done:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
/**
* @brief This function prepares an association-class command.
*
* @param priv A pointer to struct lbs_private structure
* @param assoc_req The association request describing the BSS to associate
* or reassociate with
* @param command The actual command, either CMD_802_11_ASSOCIATE or
* CMD_802_11_REASSOCIATE
*
* @return 0 or -1
*/
static int lbs_associate(struct lbs_private *priv,
struct assoc_request *assoc_req,
u16 command)
{
struct cmd_ds_802_11_associate cmd;
int ret = 0;
struct bss_descriptor *bss = &assoc_req->bss;
u8 *pos = &(cmd.iebuf[0]);
u16 tmpcap, tmplen, tmpauth;
struct mrvl_ie_ssid_param_set *ssid;
struct mrvl_ie_ds_param_set *ds;
struct mrvl_ie_cf_param_set *cf;
struct mrvl_ie_rates_param_set *rates;
struct mrvl_ie_rsn_param_set *rsn;
struct mrvl_ie_auth_type *auth;
lbs_deb_enter(LBS_DEB_ASSOC);
BUG_ON((command != CMD_802_11_ASSOCIATE) &&
(command != CMD_802_11_REASSOCIATE));
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.command = cpu_to_le16(command);
/* Fill in static fields */
memcpy(cmd.bssid, bss->bssid, ETH_ALEN);
cmd.listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
/* Capability info */
tmpcap = (bss->capability & CAPINFO_MASK);
if (bss->mode == IW_MODE_INFRA)
tmpcap |= WLAN_CAPABILITY_ESS;
cmd.capability = cpu_to_le16(tmpcap);
lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
/* SSID */
ssid = (struct mrvl_ie_ssid_param_set *) pos;
ssid->header.type = cpu_to_le16(TLV_TYPE_SSID);
tmplen = bss->ssid_len;
ssid->header.len = cpu_to_le16(tmplen);
memcpy(ssid->ssid, bss->ssid, tmplen);
pos += sizeof(ssid->header) + tmplen;
ds = (struct mrvl_ie_ds_param_set *) pos;
ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
ds->header.len = cpu_to_le16(1);
ds->channel = bss->phy.ds.channel;
pos += sizeof(ds->header) + 1;
cf = (struct mrvl_ie_cf_param_set *) pos;
cf->header.type = cpu_to_le16(TLV_TYPE_CF);
tmplen = sizeof(*cf) - sizeof (cf->header);
cf->header.len = cpu_to_le16(tmplen);
/* IE payload should be zeroed, firmware fills it in for us */
pos += sizeof(*cf);
rates = (struct mrvl_ie_rates_param_set *) pos;
rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
tmplen = min_t(u16, ARRAY_SIZE(bss->rates), MAX_RATES);
memcpy(&rates->rates, &bss->rates, tmplen);
if (get_common_rates(priv, rates->rates, &tmplen)) {
ret = -1;
goto done;
}
pos += sizeof(rates->header) + tmplen;
rates->header.len = cpu_to_le16(tmplen);
lbs_deb_assoc("ASSOC_CMD: num rates %u\n", tmplen);
/* Copy the infra. association rates into Current BSS state structure */
memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
memcpy(&priv->curbssparams.rates, &rates->rates, tmplen);
/* Set MSB on basic rates as the firmware requires, but _after_
* copying to current bss rates.
*/
lbs_set_basic_rate_flags(rates->rates, tmplen);
/* Firmware v9+ indicate authentication suites as a TLV */
if (priv->fwrelease >= 0x09000000) {
auth = (struct mrvl_ie_auth_type *) pos;
auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
auth->header.len = cpu_to_le16(2);
tmpauth = iw_auth_to_ieee_auth(priv->secinfo.auth_mode);
auth->auth = cpu_to_le16(tmpauth);
pos += sizeof(auth->header) + 2;
lbs_deb_join("AUTH_CMD: BSSID %pM, auth 0x%x\n",
bss->bssid, priv->secinfo.auth_mode);
}
/* WPA/WPA2 IEs */
if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
rsn = (struct mrvl_ie_rsn_param_set *) pos;
/* WPA_IE or WPA2_IE */
rsn->header.type = cpu_to_le16((u16) assoc_req->wpa_ie[0]);
tmplen = (u16) assoc_req->wpa_ie[1];
rsn->header.len = cpu_to_le16(tmplen);
memcpy(rsn->rsnie, &assoc_req->wpa_ie[2], tmplen);
lbs_deb_hex(LBS_DEB_JOIN, "ASSOC_CMD: WPA/RSN IE", (u8 *) rsn,
sizeof(rsn->header) + tmplen);
pos += sizeof(rsn->header) + tmplen;
}
cmd.hdr.size = cpu_to_le16((sizeof(cmd) - sizeof(cmd.iebuf)) +
(u16)(pos - (u8 *) &cmd.iebuf));
/* update curbssparams */
priv->channel = bss->phy.ds.channel;
ret = lbs_cmd_with_response(priv, command, &cmd);
if (ret == 0) {
ret = lbs_assoc_post(priv,
(struct cmd_ds_802_11_associate_response *) &cmd);
}
done:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
/**
* @brief Associate to a specific BSS discovered in a scan
*
* @param priv A pointer to struct lbs_private structure
* @param assoc_req The association request describing the BSS to associate with
*
* @return 0-success, otherwise fail
*/
static int lbs_try_associate(struct lbs_private *priv,
struct assoc_request *assoc_req)
{
int ret;
u8 preamble = RADIO_PREAMBLE_LONG;
lbs_deb_enter(LBS_DEB_ASSOC);
/* FW v9 and higher indicate authentication suites as a TLV in the
* association command, not as a separate authentication command.
*/
if (priv->fwrelease < 0x09000000) {
ret = lbs_set_authentication(priv, assoc_req->bss.bssid,
priv->secinfo.auth_mode);
if (ret)
goto out;
}
/* Use short preamble only when both the BSS and firmware support it */
if (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
preamble = RADIO_PREAMBLE_SHORT;
ret = lbs_set_radio(priv, preamble, 1);
if (ret)
goto out;
ret = lbs_associate(priv, assoc_req, CMD_802_11_ASSOCIATE);
/* If the association fails with current auth mode, let's
* try by changing the auth mode
*/
if ((priv->authtype_auto) &&
(ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) &&
(assoc_req->secinfo.wep_enabled) &&
(priv->connect_status != LBS_CONNECTED)) {
if (priv->secinfo.auth_mode == IW_AUTH_ALG_OPEN_SYSTEM)
priv->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
else
priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
if (!assoc_helper_wep_keys(priv, assoc_req))
ret = lbs_associate(priv, assoc_req,
CMD_802_11_ASSOCIATE);
}
if (ret)
ret = -1;
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int lbs_adhoc_post(struct lbs_private *priv,
struct cmd_ds_802_11_ad_hoc_result *resp)
{
int ret = 0;
u16 command = le16_to_cpu(resp->hdr.command);
u16 result = le16_to_cpu(resp->hdr.result);
union iwreq_data wrqu;
struct bss_descriptor *bss;
DECLARE_SSID_BUF(ssid);
lbs_deb_enter(LBS_DEB_JOIN);
if (!priv->in_progress_assoc_req) {
lbs_deb_join("ADHOC_RESP: no in-progress association "
"request\n");
ret = -1;
goto done;
}
bss = &priv->in_progress_assoc_req->bss;
/*
* Join result code 0 --> SUCCESS
*/
if (result) {
lbs_deb_join("ADHOC_RESP: failed (result 0x%X)\n", result);
if (priv->connect_status == LBS_CONNECTED)
lbs_mac_event_disconnected(priv);
ret = -1;
goto done;
}
/* Send a Media Connected event, according to the Spec */
priv->connect_status = LBS_CONNECTED;
if (command == CMD_RET(CMD_802_11_AD_HOC_START)) {
/* Update the created network descriptor with the new BSSID */
memcpy(bss->bssid, resp->bssid, ETH_ALEN);
}
/* Set the BSSID from the joined/started descriptor */
memcpy(&priv->curbssparams.bssid, bss->bssid, ETH_ALEN);
/* Set the new SSID to current SSID */
memcpy(&priv->curbssparams.ssid, &bss->ssid, IEEE80211_MAX_SSID_LEN);
priv->curbssparams.ssid_len = bss->ssid_len;
netif_carrier_on(priv->dev);
if (!priv->tx_pending_len)
netif_wake_queue(priv->dev);
memset(&wrqu, 0, sizeof(wrqu));
memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid, ETH_ALEN);
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
lbs_deb_join("ADHOC_RESP: Joined/started '%s', BSSID %pM, channel %d\n",
print_ssid(ssid, bss->ssid, bss->ssid_len),
priv->curbssparams.bssid,
priv->channel);
done:
lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
return ret;
}
/**
* @brief Join an adhoc network found in a previous scan
*
* @param priv A pointer to struct lbs_private structure
* @param assoc_req The association request describing the BSS to join
*
* @return 0 on success, error on failure
*/
static int lbs_adhoc_join(struct lbs_private *priv,
struct assoc_request *assoc_req)
{
struct cmd_ds_802_11_ad_hoc_join cmd;
struct bss_descriptor *bss = &assoc_req->bss;
u8 preamble = RADIO_PREAMBLE_LONG;
DECLARE_SSID_BUF(ssid);
u16 ratesize = 0;
int ret = 0;
lbs_deb_enter(LBS_DEB_ASSOC);
lbs_deb_join("current SSID '%s', ssid length %u\n",
print_ssid(ssid, priv->curbssparams.ssid,
priv->curbssparams.ssid_len),
priv->curbssparams.ssid_len);
lbs_deb_join("requested ssid '%s', ssid length %u\n",
print_ssid(ssid, bss->ssid, bss->ssid_len),
bss->ssid_len);
/* check if the requested SSID is already joined */
if (priv->curbssparams.ssid_len &&
!lbs_ssid_cmp(priv->curbssparams.ssid,
priv->curbssparams.ssid_len,
bss->ssid, bss->ssid_len) &&
(priv->mode == IW_MODE_ADHOC) &&
(priv->connect_status == LBS_CONNECTED)) {
union iwreq_data wrqu;
lbs_deb_join("ADHOC_J_CMD: New ad-hoc SSID is the same as "
"current, not attempting to re-join");
/* Send the re-association event though, because the association
* request really was successful, even if just a null-op.
*/
memset(&wrqu, 0, sizeof(wrqu));
memcpy(wrqu.ap_addr.sa_data, priv->curbssparams.bssid,
ETH_ALEN);
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
goto out;
}
/* Use short preamble only when both the BSS and firmware support it */
if (bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
lbs_deb_join("AdhocJoin: Short preamble\n");
preamble = RADIO_PREAMBLE_SHORT;
}
ret = lbs_set_radio(priv, preamble, 1);
if (ret)
goto out;
lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
priv->adhoccreate = 0;
priv->channel = bss->channel;
/* Build the join command */
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.bss.type = CMD_BSS_TYPE_IBSS;
cmd.bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
memcpy(&cmd.bss.bssid, &bss->bssid, ETH_ALEN);
memcpy(&cmd.bss.ssid, &bss->ssid, bss->ssid_len);
memcpy(&cmd.bss.ds, &bss->phy.ds, sizeof(struct ieee_ie_ds_param_set));
memcpy(&cmd.bss.ibss, &bss->ss.ibss,
sizeof(struct ieee_ie_ibss_param_set));
cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
lbs_deb_join("ADHOC_J_CMD: tmpcap=%4X CAPINFO_MASK=%4X\n",
bss->capability, CAPINFO_MASK);
/* information on BSSID descriptor passed to FW */
lbs_deb_join("ADHOC_J_CMD: BSSID = %pM, SSID = '%s'\n",
cmd.bss.bssid, cmd.bss.ssid);
/* Only v8 and below support setting these */
if (priv->fwrelease < 0x09000000) {
/* failtimeout */
cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
/* probedelay */
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
}
/* Copy Data rates from the rates recorded in scan response */
memset(cmd.bss.rates, 0, sizeof(cmd.bss.rates));
ratesize = min_t(u16, ARRAY_SIZE(cmd.bss.rates), ARRAY_SIZE (bss->rates));
memcpy(cmd.bss.rates, bss->rates, ratesize);
if (get_common_rates(priv, cmd.bss.rates, &ratesize)) {
lbs_deb_join("ADHOC_JOIN: get_common_rates returned error.\n");
ret = -1;
goto out;
}
/* Copy the ad-hoc creation rates into Current BSS state structure */
memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
memcpy(&priv->curbssparams.rates, cmd.bss.rates, ratesize);
/* Set MSB on basic rates as the firmware requires, but _after_
* copying to current bss rates.
*/
lbs_set_basic_rate_flags(cmd.bss.rates, ratesize);
cmd.bss.ibss.atimwindow = bss->atimwindow;
if (assoc_req->secinfo.wep_enabled) {
u16 tmp = le16_to_cpu(cmd.bss.capability);
tmp |= WLAN_CAPABILITY_PRIVACY;
cmd.bss.capability = cpu_to_le16(tmp);
}
if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
__le32 local_ps_mode = cpu_to_le32(LBS802_11POWERMODECAM);
/* wake up first */
ret = lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
CMD_ACT_SET, 0, 0,
&local_ps_mode);
if (ret) {
ret = -1;
goto out;
}
}
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
if (ret == 0) {
ret = lbs_adhoc_post(priv,
(struct cmd_ds_802_11_ad_hoc_result *)&cmd);
}
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
/**
* @brief Start an Adhoc Network
*
* @param priv A pointer to struct lbs_private structure
* @param assoc_req The association request describing the BSS to start
*
* @return 0 on success, error on failure
*/
static int lbs_adhoc_start(struct lbs_private *priv,
struct assoc_request *assoc_req)
{
struct cmd_ds_802_11_ad_hoc_start cmd;
u8 preamble = RADIO_PREAMBLE_SHORT;
size_t ratesize = 0;
u16 tmpcap = 0;
int ret = 0;
DECLARE_SSID_BUF(ssid);
lbs_deb_enter(LBS_DEB_ASSOC);
ret = lbs_set_radio(priv, preamble, 1);
if (ret)
goto out;
/* Build the start command */
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
memcpy(cmd.ssid, assoc_req->ssid, assoc_req->ssid_len);
lbs_deb_join("ADHOC_START: SSID '%s', ssid length %u\n",
print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len),
assoc_req->ssid_len);
cmd.bsstype = CMD_BSS_TYPE_IBSS;
if (priv->beacon_period == 0)
priv->beacon_period = MRVDRV_BEACON_INTERVAL;
cmd.beaconperiod = cpu_to_le16(priv->beacon_period);
WARN_ON(!assoc_req->channel);
/* set Physical parameter set */
cmd.ds.header.id = WLAN_EID_DS_PARAMS;
cmd.ds.header.len = 1;
cmd.ds.channel = assoc_req->channel;
/* set IBSS parameter set */
cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
cmd.ibss.header.len = 2;
cmd.ibss.atimwindow = cpu_to_le16(0);
/* set capability info */
tmpcap = WLAN_CAPABILITY_IBSS;
if (assoc_req->secinfo.wep_enabled ||
assoc_req->secinfo.WPAenabled ||
assoc_req->secinfo.WPA2enabled) {
lbs_deb_join("ADHOC_START: WEP/WPA enabled, privacy on\n");
tmpcap |= WLAN_CAPABILITY_PRIVACY;
} else
lbs_deb_join("ADHOC_START: WEP disabled, privacy off\n");
cmd.capability = cpu_to_le16(tmpcap);
/* Only v8 and below support setting probe delay */
if (priv->fwrelease < 0x09000000)
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
ratesize = min(sizeof(cmd.rates), sizeof(lbs_bg_rates));
memcpy(cmd.rates, lbs_bg_rates, ratesize);
/* Copy the ad-hoc creating rates into Current BSS state structure */
memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
memcpy(&priv->curbssparams.rates, &cmd.rates, ratesize);
/* Set MSB on basic rates as the firmware requires, but _after_
* copying to current bss rates.
*/
lbs_set_basic_rate_flags(cmd.rates, ratesize);
lbs_deb_join("ADHOC_START: rates=%02x %02x %02x %02x\n",
cmd.rates[0], cmd.rates[1], cmd.rates[2], cmd.rates[3]);
lbs_deb_join("ADHOC_START: Starting Ad-Hoc BSS on channel %d, band %d\n",
assoc_req->channel, assoc_req->band);
priv->adhoccreate = 1;
priv->mode = IW_MODE_ADHOC;
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
if (ret == 0)
ret = lbs_adhoc_post(priv,
(struct cmd_ds_802_11_ad_hoc_result *)&cmd);
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
/**
* @brief Stop and Ad-Hoc network and exit Ad-Hoc mode
*
* @param priv A pointer to struct lbs_private structure
* @return 0 on success, or an error
*/
int lbs_adhoc_stop(struct lbs_private *priv)
{
struct cmd_ds_802_11_ad_hoc_stop cmd;
int ret;
lbs_deb_enter(LBS_DEB_JOIN);
memset(&cmd, 0, sizeof (cmd));
cmd.hdr.size = cpu_to_le16 (sizeof (cmd));
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
/* Clean up everything even if there was an error */
lbs_mac_event_disconnected(priv);
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static inline int match_bss_no_security(struct lbs_802_11_security *secinfo,
struct bss_descriptor *match_bss)
{
if (!secinfo->wep_enabled &&
!secinfo->WPAenabled && !secinfo->WPA2enabled &&
match_bss->wpa_ie[0] != WLAN_EID_GENERIC &&
match_bss->rsn_ie[0] != WLAN_EID_RSN &&
!(match_bss->capability & WLAN_CAPABILITY_PRIVACY))
return 1;
else
return 0;
}
static inline int match_bss_static_wep(struct lbs_802_11_security *secinfo,
struct bss_descriptor *match_bss)
{
if (secinfo->wep_enabled &&
!secinfo->WPAenabled && !secinfo->WPA2enabled &&
(match_bss->capability & WLAN_CAPABILITY_PRIVACY))
return 1;
else
return 0;
}
static inline int match_bss_wpa(struct lbs_802_11_security *secinfo,
struct bss_descriptor *match_bss)
{
if (!secinfo->wep_enabled && secinfo->WPAenabled &&
(match_bss->wpa_ie[0] == WLAN_EID_GENERIC)
/* privacy bit may NOT be set in some APs like LinkSys WRT54G
&& (match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
)
return 1;
else
return 0;
}
static inline int match_bss_wpa2(struct lbs_802_11_security *secinfo,
struct bss_descriptor *match_bss)
{
if (!secinfo->wep_enabled && secinfo->WPA2enabled &&
(match_bss->rsn_ie[0] == WLAN_EID_RSN)
/* privacy bit may NOT be set in some APs like LinkSys WRT54G
(match_bss->capability & WLAN_CAPABILITY_PRIVACY) */
)
return 1;
else
return 0;
}
static inline int match_bss_dynamic_wep(struct lbs_802_11_security *secinfo,
struct bss_descriptor *match_bss)
{
if (!secinfo->wep_enabled &&
!secinfo->WPAenabled && !secinfo->WPA2enabled &&
(match_bss->wpa_ie[0] != WLAN_EID_GENERIC) &&
(match_bss->rsn_ie[0] != WLAN_EID_RSN) &&
(match_bss->capability & WLAN_CAPABILITY_PRIVACY))
return 1;
else
return 0;
}
/**
* @brief Check if a scanned network compatible with the driver settings
*
* WEP WPA WPA2 ad-hoc encrypt Network
* enabled enabled enabled AES mode privacy WPA WPA2 Compatible
* 0 0 0 0 NONE 0 0 0 yes No security
* 1 0 0 0 NONE 1 0 0 yes Static WEP
* 0 1 0 0 x 1x 1 x yes WPA
* 0 0 1 0 x 1x x 1 yes WPA2
* 0 0 0 1 NONE 1 0 0 yes Ad-hoc AES
* 0 0 0 0 !=NONE 1 0 0 yes Dynamic WEP
*
*
* @param priv A pointer to struct lbs_private
* @param index Index in scantable to check against current driver settings
* @param mode Network mode: Infrastructure or IBSS
*
* @return Index in scantable, or error code if negative
*/
static int is_network_compatible(struct lbs_private *priv,
struct bss_descriptor *bss, uint8_t mode)
{
int matched = 0;
lbs_deb_enter(LBS_DEB_SCAN);
if (bss->mode != mode)
goto done;
matched = match_bss_no_security(&priv->secinfo, bss);
if (matched)
goto done;
matched = match_bss_static_wep(&priv->secinfo, bss);
if (matched)
goto done;
matched = match_bss_wpa(&priv->secinfo, bss);
if (matched) {
lbs_deb_scan("is_network_compatible() WPA: wpa_ie 0x%x "
"wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
"privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
priv->secinfo.wep_enabled ? "e" : "d",
priv->secinfo.WPAenabled ? "e" : "d",
priv->secinfo.WPA2enabled ? "e" : "d",
(bss->capability & WLAN_CAPABILITY_PRIVACY));
goto done;
}
matched = match_bss_wpa2(&priv->secinfo, bss);
if (matched) {
lbs_deb_scan("is_network_compatible() WPA2: wpa_ie 0x%x "
"wpa2_ie 0x%x WEP %s WPA %s WPA2 %s "
"privacy 0x%x\n", bss->wpa_ie[0], bss->rsn_ie[0],
priv->secinfo.wep_enabled ? "e" : "d",
priv->secinfo.WPAenabled ? "e" : "d",
priv->secinfo.WPA2enabled ? "e" : "d",
(bss->capability & WLAN_CAPABILITY_PRIVACY));
goto done;
}
matched = match_bss_dynamic_wep(&priv->secinfo, bss);
if (matched) {
lbs_deb_scan("is_network_compatible() dynamic WEP: "
"wpa_ie 0x%x wpa2_ie 0x%x privacy 0x%x\n",
bss->wpa_ie[0], bss->rsn_ie[0],
(bss->capability & WLAN_CAPABILITY_PRIVACY));
goto done;
}
/* bss security settings don't match those configured on card */
lbs_deb_scan("is_network_compatible() FAILED: wpa_ie 0x%x "
"wpa2_ie 0x%x WEP %s WPA %s WPA2 %s privacy 0x%x\n",
bss->wpa_ie[0], bss->rsn_ie[0],
priv->secinfo.wep_enabled ? "e" : "d",
priv->secinfo.WPAenabled ? "e" : "d",
priv->secinfo.WPA2enabled ? "e" : "d",
(bss->capability & WLAN_CAPABILITY_PRIVACY));
done:
lbs_deb_leave_args(LBS_DEB_SCAN, "matched: %d", matched);
return matched;
}
/**
* @brief This function finds a specific compatible BSSID in the scan list
*
* Used in association code
*
* @param priv A pointer to struct lbs_private
* @param bssid BSSID to find in the scan list
* @param mode Network mode: Infrastructure or IBSS
*
* @return index in BSSID list, or error return code (< 0)
*/
static struct bss_descriptor *lbs_find_bssid_in_list(struct lbs_private *priv,
uint8_t *bssid, uint8_t mode)
{
struct bss_descriptor *iter_bss;
struct bss_descriptor *found_bss = NULL;
lbs_deb_enter(LBS_DEB_SCAN);
if (!bssid)
goto out;
lbs_deb_hex(LBS_DEB_SCAN, "looking for", bssid, ETH_ALEN);
/* Look through the scan table for a compatible match. The loop will
* continue past a matched bssid that is not compatible in case there
* is an AP with multiple SSIDs assigned to the same BSSID
*/
mutex_lock(&priv->lock);
list_for_each_entry(iter_bss, &priv->network_list, list) {
if (compare_ether_addr(iter_bss->bssid, bssid))
continue; /* bssid doesn't match */
switch (mode) {
case IW_MODE_INFRA:
case IW_MODE_ADHOC:
if (!is_network_compatible(priv, iter_bss, mode))
break;
found_bss = iter_bss;
break;
default:
found_bss = iter_bss;
break;
}
}
mutex_unlock(&priv->lock);
out:
lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
return found_bss;
}
/**
* @brief This function finds ssid in ssid list.
*
* Used in association code
*
* @param priv A pointer to struct lbs_private
* @param ssid SSID to find in the list
* @param bssid BSSID to qualify the SSID selection (if provided)
* @param mode Network mode: Infrastructure or IBSS
*
* @return index in BSSID list
*/
static struct bss_descriptor *lbs_find_ssid_in_list(struct lbs_private *priv,
uint8_t *ssid, uint8_t ssid_len,
uint8_t *bssid, uint8_t mode,
int channel)
{
u32 bestrssi = 0;
struct bss_descriptor *iter_bss = NULL;
struct bss_descriptor *found_bss = NULL;
struct bss_descriptor *tmp_oldest = NULL;
lbs_deb_enter(LBS_DEB_SCAN);
mutex_lock(&priv->lock);
list_for_each_entry(iter_bss, &priv->network_list, list) {
if (!tmp_oldest ||
(iter_bss->last_scanned < tmp_oldest->last_scanned))
tmp_oldest = iter_bss;
if (lbs_ssid_cmp(iter_bss->ssid, iter_bss->ssid_len,
ssid, ssid_len) != 0)
continue; /* ssid doesn't match */
if (bssid && compare_ether_addr(iter_bss->bssid, bssid) != 0)
continue; /* bssid doesn't match */
if ((channel > 0) && (iter_bss->channel != channel))
continue; /* channel doesn't match */
switch (mode) {
case IW_MODE_INFRA:
case IW_MODE_ADHOC:
if (!is_network_compatible(priv, iter_bss, mode))
break;
if (bssid) {
/* Found requested BSSID */
found_bss = iter_bss;
goto out;
}
if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
bestrssi = SCAN_RSSI(iter_bss->rssi);
found_bss = iter_bss;
}
break;
case IW_MODE_AUTO:
default:
if (SCAN_RSSI(iter_bss->rssi) > bestrssi) {
bestrssi = SCAN_RSSI(iter_bss->rssi);
found_bss = iter_bss;
}
break;
}
}
out:
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_SCAN, "found_bss %p", found_bss);
return found_bss;
}
static int assoc_helper_essid(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
struct bss_descriptor * bss;
int channel = -1;
DECLARE_SSID_BUF(ssid);
lbs_deb_enter(LBS_DEB_ASSOC);
/* FIXME: take channel into account when picking SSIDs if a channel
* is set.
*/
if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
channel = assoc_req->channel;
lbs_deb_assoc("SSID '%s' requested\n",
print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len));
if (assoc_req->mode == IW_MODE_INFRA) {
lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
assoc_req->ssid_len);
bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
assoc_req->ssid_len, NULL, IW_MODE_INFRA, channel);
if (bss != NULL) {
memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
ret = lbs_try_associate(priv, assoc_req);
} else {
lbs_deb_assoc("SSID not found; cannot associate\n");
}
} else if (assoc_req->mode == IW_MODE_ADHOC) {
/* Scan for the network, do not save previous results. Stale
* scan data will cause us to join a non-existant adhoc network
*/
lbs_send_specific_ssid_scan(priv, assoc_req->ssid,
assoc_req->ssid_len);
/* Search for the requested SSID in the scan table */
bss = lbs_find_ssid_in_list(priv, assoc_req->ssid,
assoc_req->ssid_len, NULL, IW_MODE_ADHOC, channel);
if (bss != NULL) {
lbs_deb_assoc("SSID found, will join\n");
memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
lbs_adhoc_join(priv, assoc_req);
} else {
/* else send START command */
lbs_deb_assoc("SSID not found, creating adhoc network\n");
memcpy(&assoc_req->bss.ssid, &assoc_req->ssid,
IEEE80211_MAX_SSID_LEN);
assoc_req->bss.ssid_len = assoc_req->ssid_len;
lbs_adhoc_start(priv, assoc_req);
}
}
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_bssid(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
struct bss_descriptor * bss;
lbs_deb_enter_args(LBS_DEB_ASSOC, "BSSID %pM", assoc_req->bssid);
/* Search for index position in list for requested MAC */
bss = lbs_find_bssid_in_list(priv, assoc_req->bssid,
assoc_req->mode);
if (bss == NULL) {
lbs_deb_assoc("ASSOC: WAP: BSSID %pM not found, "
"cannot associate.\n", assoc_req->bssid);
goto out;
}
memcpy(&assoc_req->bss, bss, sizeof(struct bss_descriptor));
if (assoc_req->mode == IW_MODE_INFRA) {
ret = lbs_try_associate(priv, assoc_req);
lbs_deb_assoc("ASSOC: lbs_try_associate(bssid) returned %d\n",
ret);
} else if (assoc_req->mode == IW_MODE_ADHOC) {
lbs_adhoc_join(priv, assoc_req);
}
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_associate(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0, done = 0;
lbs_deb_enter(LBS_DEB_ASSOC);
/* If we're given and 'any' BSSID, try associating based on SSID */
if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
if (compare_ether_addr(bssid_any, assoc_req->bssid) &&
compare_ether_addr(bssid_off, assoc_req->bssid)) {
ret = assoc_helper_bssid(priv, assoc_req);
done = 1;
}
}
if (!done && test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
ret = assoc_helper_essid(priv, assoc_req);
}
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_mode(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
lbs_deb_enter(LBS_DEB_ASSOC);
if (assoc_req->mode == priv->mode)
goto done;
if (assoc_req->mode == IW_MODE_INFRA) {
if (priv->psstate != PS_STATE_FULL_POWER)
lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
priv->psmode = LBS802_11POWERMODECAM;
}
priv->mode = assoc_req->mode;
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE,
assoc_req->mode == IW_MODE_ADHOC ? 2 : 1);
done:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_channel(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
lbs_deb_enter(LBS_DEB_ASSOC);
ret = lbs_update_channel(priv);
if (ret) {
lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
goto done;
}
if (assoc_req->channel == priv->channel)
goto done;
if (priv->mesh_dev) {
/* Change mesh channel first; 21.p21 firmware won't let
you change channel otherwise (even though it'll return
an error to this */
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
assoc_req->channel);
}
lbs_deb_assoc("ASSOC: channel: %d -> %d\n",
priv->channel, assoc_req->channel);
ret = lbs_set_channel(priv, assoc_req->channel);
if (ret < 0)
lbs_deb_assoc("ASSOC: channel: error setting channel.\n");
/* FIXME: shouldn't need to grab the channel _again_ after setting
* it since the firmware is supposed to return the new channel, but
* whatever... */
ret = lbs_update_channel(priv);
if (ret) {
lbs_deb_assoc("ASSOC: channel: error getting channel.\n");
goto done;
}
if (assoc_req->channel != priv->channel) {
lbs_deb_assoc("ASSOC: channel: failed to update channel to %d\n",
assoc_req->channel);
goto restore_mesh;
}
if (assoc_req->secinfo.wep_enabled &&
(assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)) {
/* Make sure WEP keys are re-sent to firmware */
set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
}
/* Must restart/rejoin adhoc networks after channel change */
set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
restore_mesh:
if (priv->mesh_dev)
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->channel);
done:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_wep_keys(struct lbs_private *priv,
struct assoc_request *assoc_req)
{
int i;
int ret = 0;
lbs_deb_enter(LBS_DEB_ASSOC);
/* Set or remove WEP keys */
if (assoc_req->wep_keys[0].len || assoc_req->wep_keys[1].len ||
assoc_req->wep_keys[2].len || assoc_req->wep_keys[3].len)
ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_ADD, assoc_req);
else
ret = lbs_cmd_802_11_set_wep(priv, CMD_ACT_REMOVE, assoc_req);
if (ret)
goto out;
/* enable/disable the MAC's WEP packet filter */
if (assoc_req->secinfo.wep_enabled)
priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
else
priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
lbs_set_mac_control(priv);
mutex_lock(&priv->lock);
/* Copy WEP keys into priv wep key fields */
for (i = 0; i < 4; i++) {
memcpy(&priv->wep_keys[i], &assoc_req->wep_keys[i],
sizeof(struct enc_key));
}
priv->wep_tx_keyidx = assoc_req->wep_tx_keyidx;
mutex_unlock(&priv->lock);
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_secinfo(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
uint16_t do_wpa;
uint16_t rsn = 0;
lbs_deb_enter(LBS_DEB_ASSOC);
memcpy(&priv->secinfo, &assoc_req->secinfo,
sizeof(struct lbs_802_11_security));
lbs_set_mac_control(priv);
/* If RSN is already enabled, don't try to enable it again, since
* ENABLE_RSN resets internal state machines and will clobber the
* 4-way WPA handshake.
*/
/* Get RSN enabled/disabled */
ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_GET, &rsn);
if (ret) {
lbs_deb_assoc("Failed to get RSN status: %d\n", ret);
goto out;
}
/* Don't re-enable RSN if it's already enabled */
do_wpa = assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled;
if (do_wpa == rsn)
goto out;
/* Set RSN enabled/disabled */
ret = lbs_cmd_802_11_enable_rsn(priv, CMD_ACT_SET, &do_wpa);
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_wpa_keys(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
unsigned int flags = assoc_req->flags;
lbs_deb_enter(LBS_DEB_ASSOC);
/* Work around older firmware bug where WPA unicast and multicast
* keys must be set independently. Seen in SDIO parts with firmware
* version 5.0.11p0.
*/
if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
clear_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
assoc_req->flags = flags;
}
if (ret)
goto out;
memcpy(&priv->wpa_unicast_key, &assoc_req->wpa_unicast_key,
sizeof(struct enc_key));
if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
clear_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
ret = lbs_cmd_802_11_key_material(priv, CMD_ACT_SET, assoc_req);
assoc_req->flags = flags;
memcpy(&priv->wpa_mcast_key, &assoc_req->wpa_mcast_key,
sizeof(struct enc_key));
}
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int assoc_helper_wpa_ie(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
lbs_deb_enter(LBS_DEB_ASSOC);
if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
memcpy(&priv->wpa_ie, &assoc_req->wpa_ie, assoc_req->wpa_ie_len);
priv->wpa_ie_len = assoc_req->wpa_ie_len;
} else {
memset(&priv->wpa_ie, 0, MAX_WPA_IE_LEN);
priv->wpa_ie_len = 0;
}
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int should_deauth_infrastructure(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
int ret = 0;
if (priv->connect_status != LBS_CONNECTED)
return 0;
lbs_deb_enter(LBS_DEB_ASSOC);
if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
lbs_deb_assoc("Deauthenticating due to new SSID\n");
ret = 1;
goto out;
}
if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
if (priv->secinfo.auth_mode != assoc_req->secinfo.auth_mode) {
lbs_deb_assoc("Deauthenticating due to new security\n");
ret = 1;
goto out;
}
}
if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
lbs_deb_assoc("Deauthenticating due to new BSSID\n");
ret = 1;
goto out;
}
if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
lbs_deb_assoc("Deauthenticating due to channel switch\n");
ret = 1;
goto out;
}
/* FIXME: deal with 'auto' mode somehow */
if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
if (assoc_req->mode != IW_MODE_INFRA) {
lbs_deb_assoc("Deauthenticating due to leaving "
"infra mode\n");
ret = 1;
goto out;
}
}
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
static int should_stop_adhoc(struct lbs_private *priv,
struct assoc_request * assoc_req)
{
lbs_deb_enter(LBS_DEB_ASSOC);
if (priv->connect_status != LBS_CONNECTED)
return 0;
if (lbs_ssid_cmp(priv->curbssparams.ssid,
priv->curbssparams.ssid_len,
assoc_req->ssid, assoc_req->ssid_len) != 0)
return 1;
/* FIXME: deal with 'auto' mode somehow */
if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
if (assoc_req->mode != IW_MODE_ADHOC)
return 1;
}
if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
if (assoc_req->channel != priv->channel)
return 1;
}
lbs_deb_leave(LBS_DEB_ASSOC);
return 0;
}
/**
* @brief This function finds the best SSID in the Scan List
*
* Search the scan table for the best SSID that also matches the current
* adapter network preference (infrastructure or adhoc)
*
* @param priv A pointer to struct lbs_private
*
* @return index in BSSID list
*/
static struct bss_descriptor *lbs_find_best_ssid_in_list(
struct lbs_private *priv, uint8_t mode)
{
uint8_t bestrssi = 0;
struct bss_descriptor *iter_bss;
struct bss_descriptor *best_bss = NULL;
lbs_deb_enter(LBS_DEB_SCAN);
mutex_lock(&priv->lock);
list_for_each_entry(iter_bss, &priv->network_list, list) {
switch (mode) {
case IW_MODE_INFRA:
case IW_MODE_ADHOC:
if (!is_network_compatible(priv, iter_bss, mode))
break;
if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
break;
bestrssi = SCAN_RSSI(iter_bss->rssi);
best_bss = iter_bss;
break;
case IW_MODE_AUTO:
default:
if (SCAN_RSSI(iter_bss->rssi) <= bestrssi)
break;
bestrssi = SCAN_RSSI(iter_bss->rssi);
best_bss = iter_bss;
break;
}
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_SCAN, "best_bss %p", best_bss);
return best_bss;
}
/**
* @brief Find the best AP
*
* Used from association worker.
*
* @param priv A pointer to struct lbs_private structure
* @param pSSID A pointer to AP's ssid
*
* @return 0--success, otherwise--fail
*/
static int lbs_find_best_network_ssid(struct lbs_private *priv,
uint8_t *out_ssid, uint8_t *out_ssid_len, uint8_t preferred_mode,
uint8_t *out_mode)
{
int ret = -1;
struct bss_descriptor *found;
lbs_deb_enter(LBS_DEB_SCAN);
priv->scan_ssid_len = 0;
lbs_scan_networks(priv, 1);
if (priv->surpriseremoved)
goto out;
found = lbs_find_best_ssid_in_list(priv, preferred_mode);
if (found && (found->ssid_len > 0)) {
memcpy(out_ssid, &found->ssid, IEEE80211_MAX_SSID_LEN);
*out_ssid_len = found->ssid_len;
*out_mode = found->mode;
ret = 0;
}
out:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
void lbs_association_worker(struct work_struct *work)
{
struct lbs_private *priv = container_of(work, struct lbs_private,
assoc_work.work);
struct assoc_request * assoc_req = NULL;
int ret = 0;
int find_any_ssid = 0;
DECLARE_SSID_BUF(ssid);
lbs_deb_enter(LBS_DEB_ASSOC);
mutex_lock(&priv->lock);
assoc_req = priv->pending_assoc_req;
priv->pending_assoc_req = NULL;
priv->in_progress_assoc_req = assoc_req;
mutex_unlock(&priv->lock);
if (!assoc_req)
goto done;
lbs_deb_assoc(
"Association Request:\n"
" flags: 0x%08lx\n"
" SSID: '%s'\n"
" chann: %d\n"
" band: %d\n"
" mode: %d\n"
" BSSID: %pM\n"
" secinfo: %s%s%s\n"
" auth_mode: %d\n",
assoc_req->flags,
print_ssid(ssid, assoc_req->ssid, assoc_req->ssid_len),
assoc_req->channel, assoc_req->band, assoc_req->mode,
assoc_req->bssid,
assoc_req->secinfo.WPAenabled ? " WPA" : "",
assoc_req->secinfo.WPA2enabled ? " WPA2" : "",
assoc_req->secinfo.wep_enabled ? " WEP" : "",
assoc_req->secinfo.auth_mode);
/* If 'any' SSID was specified, find an SSID to associate with */
if (test_bit(ASSOC_FLAG_SSID, &assoc_req->flags) &&
!assoc_req->ssid_len)
find_any_ssid = 1;
/* But don't use 'any' SSID if there's a valid locked BSSID to use */
if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
if (compare_ether_addr(assoc_req->bssid, bssid_any) &&
compare_ether_addr(assoc_req->bssid, bssid_off))
find_any_ssid = 0;
}
if (find_any_ssid) {
u8 new_mode = assoc_req->mode;
ret = lbs_find_best_network_ssid(priv, assoc_req->ssid,
&assoc_req->ssid_len, assoc_req->mode, &new_mode);
if (ret) {
lbs_deb_assoc("Could not find best network\n");
ret = -ENETUNREACH;
goto out;
}
/* Ensure we switch to the mode of the AP */
if (assoc_req->mode == IW_MODE_AUTO) {
set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
assoc_req->mode = new_mode;
}
}
/*
* Check if the attributes being changing require deauthentication
* from the currently associated infrastructure access point.
*/
if (priv->mode == IW_MODE_INFRA) {
if (should_deauth_infrastructure(priv, assoc_req)) {
ret = lbs_cmd_80211_deauthenticate(priv,
priv->curbssparams.bssid,
WLAN_REASON_DEAUTH_LEAVING);
if (ret) {
lbs_deb_assoc("Deauthentication due to new "
"configuration request failed: %d\n",
ret);
}
}
} else if (priv->mode == IW_MODE_ADHOC) {
if (should_stop_adhoc(priv, assoc_req)) {
ret = lbs_adhoc_stop(priv);
if (ret) {
lbs_deb_assoc("Teardown of AdHoc network due to "
"new configuration request failed: %d\n",
ret);
}
}
}
/* Send the various configuration bits to the firmware */
if (test_bit(ASSOC_FLAG_MODE, &assoc_req->flags)) {
ret = assoc_helper_mode(priv, assoc_req);
if (ret)
goto out;
}
if (test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags)) {
ret = assoc_helper_channel(priv, assoc_req);
if (ret)
goto out;
}
if (test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
ret = assoc_helper_secinfo(priv, assoc_req);
if (ret)
goto out;
}
if (test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
ret = assoc_helper_wpa_ie(priv, assoc_req);
if (ret)
goto out;
}
/*
* v10 FW wants WPA keys to be set/cleared before WEP key operations,
* otherwise it will fail to correctly associate to WEP networks.
* Other firmware versions don't appear to care.
*/
if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags) ||
test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
ret = assoc_helper_wpa_keys(priv, assoc_req);
if (ret)
goto out;
}
if (test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags) ||
test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags)) {
ret = assoc_helper_wep_keys(priv, assoc_req);
if (ret)
goto out;
}
/* SSID/BSSID should be the _last_ config option set, because they
* trigger the association attempt.
*/
if (test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags) ||
test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
int success = 1;
ret = assoc_helper_associate(priv, assoc_req);
if (ret) {
lbs_deb_assoc("ASSOC: association unsuccessful: %d\n",
ret);
success = 0;
}
if (priv->connect_status != LBS_CONNECTED) {
lbs_deb_assoc("ASSOC: association unsuccessful, "
"not connected\n");
success = 0;
}
if (success) {
lbs_deb_assoc("associated to %pM\n",
priv->curbssparams.bssid);
lbs_prepare_and_send_command(priv,
CMD_802_11_RSSI,
0, CMD_OPTION_WAITFORRSP, 0, NULL);
} else {
ret = -1;
}
}
out:
if (ret) {
lbs_deb_assoc("ASSOC: reconfiguration attempt unsuccessful: %d\n",
ret);
}
mutex_lock(&priv->lock);
priv->in_progress_assoc_req = NULL;
mutex_unlock(&priv->lock);
kfree(assoc_req);
done:
lbs_deb_leave(LBS_DEB_ASSOC);
}
/*
* Caller MUST hold any necessary locks
*/
struct assoc_request *lbs_get_association_request(struct lbs_private *priv)
{
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_ASSOC);
if (!priv->pending_assoc_req) {
priv->pending_assoc_req = kzalloc(sizeof(struct assoc_request),
GFP_KERNEL);
if (!priv->pending_assoc_req) {
lbs_pr_info("Not enough memory to allocate association"
" request!\n");
return NULL;
}
}
/* Copy current configuration attributes to the association request,
* but don't overwrite any that are already set.
*/
assoc_req = priv->pending_assoc_req;
if (!test_bit(ASSOC_FLAG_SSID, &assoc_req->flags)) {
memcpy(&assoc_req->ssid, &priv->curbssparams.ssid,
IEEE80211_MAX_SSID_LEN);
assoc_req->ssid_len = priv->curbssparams.ssid_len;
}
if (!test_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags))
assoc_req->channel = priv->channel;
if (!test_bit(ASSOC_FLAG_BAND, &assoc_req->flags))
assoc_req->band = priv->curbssparams.band;
if (!test_bit(ASSOC_FLAG_MODE, &assoc_req->flags))
assoc_req->mode = priv->mode;
if (!test_bit(ASSOC_FLAG_BSSID, &assoc_req->flags)) {
memcpy(&assoc_req->bssid, priv->curbssparams.bssid,
ETH_ALEN);
}
if (!test_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags)) {
int i;
for (i = 0; i < 4; i++) {
memcpy(&assoc_req->wep_keys[i], &priv->wep_keys[i],
sizeof(struct enc_key));
}
}
if (!test_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags))
assoc_req->wep_tx_keyidx = priv->wep_tx_keyidx;
if (!test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
memcpy(&assoc_req->wpa_mcast_key, &priv->wpa_mcast_key,
sizeof(struct enc_key));
}
if (!test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
memcpy(&assoc_req->wpa_unicast_key, &priv->wpa_unicast_key,
sizeof(struct enc_key));
}
if (!test_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags)) {
memcpy(&assoc_req->secinfo, &priv->secinfo,
sizeof(struct lbs_802_11_security));
}
if (!test_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags)) {
memcpy(&assoc_req->wpa_ie, &priv->wpa_ie,
MAX_WPA_IE_LEN);
assoc_req->wpa_ie_len = priv->wpa_ie_len;
}
lbs_deb_leave(LBS_DEB_ASSOC);
return assoc_req;
}
/**
* @brief Deauthenticate from a specific BSS
*
* @param priv A pointer to struct lbs_private structure
* @param bssid The specific BSS to deauthenticate from
* @param reason The 802.11 sec. 7.3.1.7 Reason Code for deauthenticating
*
* @return 0 on success, error on failure
*/
int lbs_cmd_80211_deauthenticate(struct lbs_private *priv, u8 bssid[ETH_ALEN],
u16 reason)
{
struct cmd_ds_802_11_deauthenticate cmd;
int ret;
lbs_deb_enter(LBS_DEB_JOIN);
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
memcpy(cmd.macaddr, &bssid[0], ETH_ALEN);
cmd.reasoncode = cpu_to_le16(reason);
ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
/* Clean up everything even if there was an error; can't assume that
* we're still authenticated to the AP after trying to deauth.
*/
lbs_mac_event_disconnected(priv);
lbs_deb_leave(LBS_DEB_JOIN);
return ret;
}
drivers/net/wireless/libertas/assoc.h deleted 100644 → 0
View file @ f90754c1
/* Copyright (C) 2006, Red Hat, Inc. */
#ifndef _LBS_ASSOC_H_
#define _LBS_ASSOC_H_
#include "defs.h"
#include "host.h"
struct lbs_private;
/*
* In theory, the IE is limited to the IE length, 255,
* but in practice 64 bytes are enough.
*/
#define MAX_WPA_IE_LEN 64
struct lbs_802_11_security {
u8 WPAenabled;
u8 WPA2enabled;
u8 wep_enabled;
u8 auth_mode;
u32 key_mgmt;
};
/** Current Basic Service Set State Structure */
struct current_bss_params {
/** bssid */
u8 bssid[ETH_ALEN];
/** ssid */
u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
u8 ssid_len;
/** band */
u8 band;
/** channel is directly in priv->channel */
/** zero-terminated array of supported data rates */
u8 rates[MAX_RATES + 1];
};
/**
* @brief Structure used to store information for each beacon/probe response
*/
struct bss_descriptor {
u8 bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
u8 ssid_len;
u16 capability;
u32 rssi;
u32 channel;
u16 beaconperiod;
__le16 atimwindow;
/* IW_MODE_AUTO, IW_MODE_ADHOC, IW_MODE_INFRA */
u8 mode;
/* zero-terminated array of supported data rates */
u8 rates[MAX_RATES + 1];
unsigned long last_scanned;
union ieee_phy_param_set phy;
union ieee_ss_param_set ss;
u8 wpa_ie[MAX_WPA_IE_LEN];
size_t wpa_ie_len;
u8 rsn_ie[MAX_WPA_IE_LEN];
size_t rsn_ie_len;
u8 mesh;
struct list_head list;
};
/** Association request
*
* Encapsulates all the options that describe a specific assocation request
* or configuration of the wireless card's radio, mode, and security settings.
*/
struct assoc_request {
#define ASSOC_FLAG_SSID 1
#define ASSOC_FLAG_CHANNEL 2
#define ASSOC_FLAG_BAND 3
#define ASSOC_FLAG_MODE 4
#define ASSOC_FLAG_BSSID 5
#define ASSOC_FLAG_WEP_KEYS 6
#define ASSOC_FLAG_WEP_TX_KEYIDX 7
#define ASSOC_FLAG_WPA_MCAST_KEY 8
#define ASSOC_FLAG_WPA_UCAST_KEY 9
#define ASSOC_FLAG_SECINFO 10
#define ASSOC_FLAG_WPA_IE 11
unsigned long flags;
u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
u8 ssid_len;
u8 channel;
u8 band;
u8 mode;
u8 bssid[ETH_ALEN] __attribute__ ((aligned (2)));
/** WEP keys */
struct enc_key wep_keys[4];
u16 wep_tx_keyidx;
/** WPA keys */
struct enc_key wpa_mcast_key;
struct enc_key wpa_unicast_key;
struct lbs_802_11_security secinfo;
/** WPA Information Elements*/
u8 wpa_ie[MAX_WPA_IE_LEN];
u8 wpa_ie_len;
/* BSS to associate with for infrastructure of Ad-Hoc join */
struct bss_descriptor bss;
};
extern u8 lbs_bg_rates[MAX_RATES];
void lbs_association_worker(struct work_struct *work);
struct assoc_request *lbs_get_association_request(struct lbs_private *priv);
int lbs_adhoc_stop(struct lbs_private *priv);
int lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
u8 bssid[ETH_ALEN], u16 reason);
int lbs_cmd_802_11_rssi(struct lbs_private *priv,
struct cmd_ds_command *cmd);
int lbs_ret_802_11_rssi(struct lbs_private *priv,
struct cmd_ds_command *resp);
int lbs_cmd_bcn_ctrl(struct lbs_private *priv,
struct cmd_ds_command *cmd,
u16 cmd_action);
int lbs_ret_802_11_bcn_ctrl(struct lbs_private *priv,
struct cmd_ds_command *resp);
int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
struct assoc_request *assoc);
int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
uint16_t *enable);
int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
struct assoc_request *assoc);
#endif /* _LBS_ASSOC_H */
drivers/net/wireless/libertas/cfg.c
View file @ e86dc1ca
......@@ -7,8 +7,11 @@
*/
#include <linux/slab.h>
#include <linux/if_arp.h>
#include <net/cfg80211.h>
#include <asm/unaligned.h>
#include "decl.h"
#include "cfg.h"
#include "cmd.h"
......@@ -39,26 +42,27 @@ static struct ieee80211_channel lbs_2ghz_channels[] = {
CHAN2G(14, 2484, 0),
};
#define RATETAB_ENT(_rate, _rateid, _flags) { \
.bitrate = (_rate), \
.hw_value = (_rateid), \
.flags = (_flags), \
#define RATETAB_ENT(_rate, _hw_value, _flags) { \
.bitrate = (_rate), \
.hw_value = (_hw_value), \
.flags = (_flags), \
}
/* Table 6 in section 3.2.1.1 */
static struct ieee80211_rate lbs_rates[] = {
RATETAB_ENT(10, 0x1, 0),
RATETAB_ENT(20, 0x2, 0),
RATETAB_ENT(55, 0x4, 0),
RATETAB_ENT(110, 0x8, 0),
RATETAB_ENT(60, 0x10, 0),
RATETAB_ENT(90, 0x20, 0),
RATETAB_ENT(120, 0x40, 0),
RATETAB_ENT(180, 0x80, 0),
RATETAB_ENT(240, 0x100, 0),
RATETAB_ENT(360, 0x200, 0),
RATETAB_ENT(480, 0x400, 0),
RATETAB_ENT(540, 0x800, 0),
RATETAB_ENT(10, 0, 0),
RATETAB_ENT(20, 1, 0),
RATETAB_ENT(55, 2, 0),
RATETAB_ENT(110, 3, 0),
RATETAB_ENT(60, 9, 0),
RATETAB_ENT(90, 6, 0),
RATETAB_ENT(120, 7, 0),
RATETAB_ENT(180, 8, 0),
RATETAB_ENT(240, 9, 0),
RATETAB_ENT(360, 10, 0),
RATETAB_ENT(480, 11, 0),
RATETAB_ENT(540, 12, 0),
};
static struct ieee80211_supported_band lbs_band_2ghz = {
......@@ -76,22 +80,1837 @@ static const u32 cipher_suites[] = {
WLAN_CIPHER_SUITE_CCMP,
};
/* Time to stay on the channel */
#define LBS_DWELL_PASSIVE 100
#define LBS_DWELL_ACTIVE 40
/***************************************************************************
* Misc utility functions
*
* TLVs are Marvell specific. They are very similar to IEs, they have the
* same structure: type, length, data*. The only difference: for IEs, the
* type and length are u8, but for TLVs they're __le16.
*/
/*
* Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
* in the firmware spec
*/
static u8 lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
{
int ret = -ENOTSUPP;
switch (auth_type) {
case NL80211_AUTHTYPE_OPEN_SYSTEM:
case NL80211_AUTHTYPE_SHARED_KEY:
ret = auth_type;
break;
case NL80211_AUTHTYPE_AUTOMATIC:
ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
break;
case NL80211_AUTHTYPE_NETWORK_EAP:
ret = 0x80;
break;
default:
/* silence compiler */
break;
}
return ret;
}
/* Various firmware commands need the list of supported rates, but with
the hight-bit set for basic rates */
static int lbs_add_rates(u8 *rates)
{
size_t i;
for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
u8 rate = lbs_rates[i].bitrate / 5;
if (rate == 0x02 || rate == 0x04 ||
rate == 0x0b || rate == 0x16)
rate |= 0x80;
rates[i] = rate;
}
return ARRAY_SIZE(lbs_rates);
}
/***************************************************************************
* TLV utility functions
*
* TLVs are Marvell specific. They are very similar to IEs, they have the
* same structure: type, length, data*. The only difference: for IEs, the
* type and length are u8, but for TLVs they're __le16.
*/
/*
* Add ssid TLV
*/
#define LBS_MAX_SSID_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ IEEE80211_MAX_SSID_LEN)
static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
{
struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
/*
* TLV-ID SSID 00 00
* length 06 00
* ssid 4d 4e 54 45 53 54
*/
ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
ssid_tlv->header.len = cpu_to_le16(ssid_len);
memcpy(ssid_tlv->ssid, ssid, ssid_len);
return sizeof(ssid_tlv->header) + ssid_len;
}
/*
* Add channel list TLV (section 8.4.2)
*
* Actual channel data comes from priv->wdev->wiphy->channels.
*/
#define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
int last_channel, int active_scan)
{
int chanscanparamsize = sizeof(struct chanscanparamset) *
(last_channel - priv->scan_channel);
struct mrvl_ie_header *header = (void *) tlv;
/*
* TLV-ID CHANLIST 01 01
* length 0e 00
* channel 00 01 00 00 00 64 00
* radio type 00
* channel 01
* scan type 00
* min scan time 00 00
* max scan time 64 00
* channel 2 00 02 00 00 00 64 00
*
*/
header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
header->len = cpu_to_le16(chanscanparamsize);
tlv += sizeof(struct mrvl_ie_header);
/* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
last_channel); */
memset(tlv, 0, chanscanparamsize);
while (priv->scan_channel < last_channel) {
struct chanscanparamset *param = (void *) tlv;
param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
param->channumber =
priv->scan_req->channels[priv->scan_channel]->hw_value;
if (active_scan) {
param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
} else {
param->chanscanmode.passivescan = 1;
param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
}
tlv += sizeof(struct chanscanparamset);
priv->scan_channel++;
}
return sizeof(struct mrvl_ie_header) + chanscanparamsize;
}
/*
* Add rates TLV
*
* The rates are in lbs_bg_rates[], but for the 802.11b
* rates the high bit is set. We add this TLV only because
* there's a firmware which otherwise doesn't report all
* APs in range.
*/
#define LBS_MAX_RATES_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ (ARRAY_SIZE(lbs_rates)))
/* Adds a TLV with all rates the hardware supports */
static int lbs_add_supported_rates_tlv(u8 *tlv)
{
size_t i;
struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
/*
* TLV-ID RATES 01 00
* length 0e 00
* rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
*/
rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
tlv += sizeof(rate_tlv->header);
i = lbs_add_rates(tlv);
tlv += i;
rate_tlv->header.len = cpu_to_le16(i);
return sizeof(rate_tlv->header) + i;
}
/*
* Adds a TLV with all rates the hardware *and* BSS supports.
*/
static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
{
struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
int n;
/*
* 01 00 TLV_TYPE_RATES
* 04 00 len
* 82 84 8b 96 rates
*/
rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
tlv += sizeof(rate_tlv->header);
if (!rates_eid) {
/* Fallback: add basic 802.11b rates */
*tlv++ = 0x82;
*tlv++ = 0x84;
*tlv++ = 0x8b;
*tlv++ = 0x96;
n = 4;
} else {
int hw, ap;
u8 ap_max = rates_eid[1];
n = 0;
for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
u8 hw_rate = lbs_rates[hw].bitrate / 5;
for (ap = 0; ap < ap_max; ap++) {
if (hw_rate == (rates_eid[ap+2] & 0x7f)) {
*tlv++ = rates_eid[ap+2];
n++;
}
}
}
}
rate_tlv->header.len = cpu_to_le16(n);
return sizeof(rate_tlv->header) + n;
}
/*
* Add auth type TLV.
*
* This is only needed for newer firmware (V9 and up).
*/
#define LBS_MAX_AUTH_TYPE_TLV_SIZE \
sizeof(struct mrvl_ie_auth_type)
static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
{
struct mrvl_ie_auth_type *auth = (void *) tlv;
/*
* 1f 01 TLV_TYPE_AUTH_TYPE
* 01 00 len
* 01 auth type
*/
auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
return sizeof(*auth);
}
/*
* Add channel (phy ds) TLV
*/
#define LBS_MAX_CHANNEL_TLV_SIZE \
sizeof(struct mrvl_ie_header)
static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
{
struct mrvl_ie_ds_param_set *ds = (void *) tlv;
/*
* 03 00 TLV_TYPE_PHY_DS
* 01 00 len
* 06 channel
*/
ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
ds->channel = channel;
return sizeof(*ds);
}
/*
* Add (empty) CF param TLV of the form:
*/
#define LBS_MAX_CF_PARAM_TLV_SIZE \
sizeof(struct mrvl_ie_header)
static int lbs_add_cf_param_tlv(u8 *tlv)
{
struct mrvl_ie_cf_param_set *cf = (void *)tlv;
/*
* 04 00 TLV_TYPE_CF
* 06 00 len
* 00 cfpcnt
* 00 cfpperiod
* 00 00 cfpmaxduration
* 00 00 cfpdurationremaining
*/
cf->header.type = cpu_to_le16(TLV_TYPE_CF);
cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
return sizeof(*cf);
}
/*
* Add WPA TLV
*/
#define LBS_MAX_WPA_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ 128 /* TODO: I guessed the size */)
static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
{
size_t tlv_len;
/*
* We need just convert an IE to an TLV. IEs use u8 for the header,
* u8 type
* u8 len
* u8[] data
* but TLVs use __le16 instead:
* __le16 type
* __le16 len
* u8[] data
*/
*tlv++ = *ie++;
*tlv++ = 0;
tlv_len = *tlv++ = *ie++;
*tlv++ = 0;
while (tlv_len--)
*tlv++ = *ie++;
/* the TLV is two bytes larger than the IE */
return ie_len + 2;
}
/***************************************************************************
* Set Channel
*/
static int lbs_cfg_set_channel(struct wiphy *wiphy,
struct net_device *netdev,
struct ieee80211_channel *chan,
struct ieee80211_channel *channel,
enum nl80211_channel_type channel_type)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = -ENOTSUPP;
int ret = -ENOTSUPP;
lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
channel->center_freq, channel_type);
if (channel_type != NL80211_CHAN_NO_HT)
goto out;
ret = lbs_set_channel(priv, channel->hw_value);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/***************************************************************************
* Scanning
*/
/*
* When scanning, the firmware doesn't send a nul packet with the power-safe
* bit to the AP. So we cannot stay away from our current channel too long,
* otherwise we loose data. So take a "nap" while scanning every other
* while.
*/
#define LBS_SCAN_BEFORE_NAP 4
/*
* When the firmware reports back a scan-result, it gives us an "u8 rssi",
* which isn't really an RSSI, as it becomes larger when moving away from
* the AP. Anyway, we need to convert that into mBm.
*/
#define LBS_SCAN_RSSI_TO_MBM(rssi) \
((-(int)rssi + 3)*100)
static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
struct cmd_header *resp)
{
struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
int bsssize;
const u8 *pos;
u16 nr_sets;
const u8 *tsfdesc;
int tsfsize;
int i;
int ret = -EILSEQ;
lbs_deb_enter(LBS_DEB_CFG80211);
bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
nr_sets = le16_to_cpu(resp->size);
/*
* The general layout of the scan response is described in chapter
* 5.7.1. Basically we have a common part, then any number of BSS
* descriptor sections. Finally we have section with the same number
* of TSFs.
*
* cmd_ds_802_11_scan_rsp
* cmd_header
* pos_size
* nr_sets
* bssdesc 1
* bssid
* rssi
* timestamp
* intvl
* capa
* IEs
* bssdesc 2
* bssdesc n
* MrvlIEtypes_TsfFimestamp_t
* TSF for BSS 1
* TSF for BSS 2
* TSF for BSS n
*/
pos = scanresp->bssdesc_and_tlvbuffer;
tsfdesc = pos + bsssize;
tsfsize = 4 + 8 * scanresp->nr_sets;
/* Validity check: we expect a Marvell-Local TLV */
i = get_unaligned_le16(tsfdesc);
tsfdesc += 2;
if (i != TLV_TYPE_TSFTIMESTAMP)
goto done;
/* Validity check: the TLV holds TSF values with 8 bytes each, so
* the size in the TLV must match the nr_sets value */
i = get_unaligned_le16(tsfdesc);
tsfdesc += 2;
if (i / 8 != scanresp->nr_sets)
goto done;
for (i = 0; i < scanresp->nr_sets; i++) {
const u8 *bssid;
const u8 *ie;
int left;
int ielen;
int rssi;
u16 intvl;
u16 capa;
int chan_no = -1;
const u8 *ssid = NULL;
u8 ssid_len = 0;
DECLARE_SSID_BUF(ssid_buf);
int len = get_unaligned_le16(pos);
pos += 2;
/* BSSID */
bssid = pos;
pos += ETH_ALEN;
/* RSSI */
rssi = *pos++;
/* Packet time stamp */
pos += 8;
/* Beacon interval */
intvl = get_unaligned_le16(pos);
pos += 2;
/* Capabilities */
capa = get_unaligned_le16(pos);
pos += 2;
/* To find out the channel, we must parse the IEs */
ie = pos;
/* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
interval, capabilities */
ielen = left = len - (6 + 1 + 8 + 2 + 2);
while (left >= 2) {
u8 id, elen;
id = *pos++;
elen = *pos++;
left -= 2;
if (elen > left || elen == 0)
goto done;
if (id == WLAN_EID_DS_PARAMS)
chan_no = *pos;
if (id == WLAN_EID_SSID) {
ssid = pos;
ssid_len = elen;
}
left -= elen;
pos += elen;
}
/* No channel, no luck */
if (chan_no != -1) {
struct wiphy *wiphy = priv->wdev->wiphy;
int freq = ieee80211_channel_to_frequency(chan_no);
struct ieee80211_channel *channel =
ieee80211_get_channel(wiphy, freq);
lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %s, "
"%d dBm\n",
bssid, capa, chan_no,
print_ssid(ssid_buf, ssid, ssid_len),
LBS_SCAN_RSSI_TO_MBM(rssi)/100);
if (channel ||
!(channel->flags & IEEE80211_CHAN_DISABLED))
cfg80211_inform_bss(wiphy, channel,
bssid, le64_to_cpu(*(__le64 *)tsfdesc),
capa, intvl, ie, ielen,
LBS_SCAN_RSSI_TO_MBM(rssi),
GFP_KERNEL);
}
tsfdesc += 8;
}
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
/*
* Our scan command contains a TLV, consting of a SSID TLV, a channel list
* TLV and a rates TLV. Determine the maximum size of them:
*/
#define LBS_SCAN_MAX_CMD_SIZE \
(sizeof(struct cmd_ds_802_11_scan) \
+ LBS_MAX_SSID_TLV_SIZE \
+ LBS_MAX_CHANNEL_LIST_TLV_SIZE \
+ LBS_MAX_RATES_TLV_SIZE)
/*
* Assumes priv->scan_req is initialized and valid
* Assumes priv->scan_channel is initialized
*/
static void lbs_scan_worker(struct work_struct *work)
{
struct lbs_private *priv =
container_of(work, struct lbs_private, scan_work.work);
struct cmd_ds_802_11_scan *scan_cmd;
u8 *tlv; /* pointer into our current, growing TLV storage area */
int last_channel;
int running, carrier;
lbs_deb_enter(LBS_DEB_SCAN);
scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
if (scan_cmd == NULL)
goto out_no_scan_cmd;
/* prepare fixed part of scan command */
scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
/* stop network while we're away from our main channel */
running = !netif_queue_stopped(priv->dev);
carrier = netif_carrier_ok(priv->dev);
if (running)
netif_stop_queue(priv->dev);
if (carrier)
netif_carrier_off(priv->dev);
/* prepare fixed part of scan command */
tlv = scan_cmd->tlvbuffer;
/* add SSID TLV */
if (priv->scan_req->n_ssids)
tlv += lbs_add_ssid_tlv(tlv,
priv->scan_req->ssids[0].ssid,
priv->scan_req->ssids[0].ssid_len);
/* add channel TLVs */
last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
if (last_channel > priv->scan_req->n_channels)
last_channel = priv->scan_req->n_channels;
tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
priv->scan_req->n_ssids);
/* add rates TLV */
tlv += lbs_add_supported_rates_tlv(tlv);
if (priv->scan_channel < priv->scan_req->n_channels) {
cancel_delayed_work(&priv->scan_work);
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(300));
}
/* This is the final data we are about to send */
scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
sizeof(*scan_cmd));
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
tlv - scan_cmd->tlvbuffer);
__lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
le16_to_cpu(scan_cmd->hdr.size),
lbs_ret_scan, 0);
if (priv->scan_channel >= priv->scan_req->n_channels) {
/* Mark scan done */
cfg80211_scan_done(priv->scan_req, false);
priv->scan_req = NULL;
}
/* Restart network */
if (carrier)
netif_carrier_on(priv->dev);
if (running && !priv->tx_pending_len)
netif_wake_queue(priv->dev);
kfree(scan_cmd);
out_no_scan_cmd:
lbs_deb_leave(LBS_DEB_SCAN);
}
static int lbs_cfg_scan(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_scan_request *request)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = 0;
lbs_deb_enter(LBS_DEB_CFG80211);
if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
/* old scan request not yet processed */
ret = -EAGAIN;
goto out;
}
lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
request->n_ssids, request->n_channels, request->ie_len);
priv->scan_channel = 0;
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(50));
if (priv->surpriseremoved)
ret = -EIO;
priv->scan_req = request;
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/***************************************************************************
* Events
*/
void lbs_send_disconnect_notification(struct lbs_private *priv)
{
lbs_deb_enter(LBS_DEB_CFG80211);
cfg80211_disconnected(priv->dev,
0,
NULL, 0,
GFP_KERNEL);
lbs_deb_leave(LBS_DEB_CFG80211);
}
void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
{
lbs_deb_enter(LBS_DEB_CFG80211);
cfg80211_michael_mic_failure(priv->dev,
priv->assoc_bss,
event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
NL80211_KEYTYPE_GROUP :
NL80211_KEYTYPE_PAIRWISE,
-1,
NULL,
GFP_KERNEL);
lbs_deb_leave(LBS_DEB_CFG80211);
}
/***************************************************************************
* Connect/disconnect
*/
/*
* This removes all WEP keys
*/
static int lbs_remove_wep_keys(struct lbs_private *priv)
{
struct cmd_ds_802_11_set_wep cmd;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Set WEP keys
*/
static int lbs_set_wep_keys(struct lbs_private *priv)
{
struct cmd_ds_802_11_set_wep cmd;
int i;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
/*
* command 13 00
* size 50 00
* sequence xx xx
* result 00 00
* action 02 00 ACT_ADD
* transmit key 00 00
* type for key 1 01 WEP40
* type for key 2 00
* type for key 3 00
* type for key 4 00
* key 1 39 39 39 39 39 00 00 00
* 00 00 00 00 00 00 00 00
* key 2 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* key 3 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* key 4 00 00 00 00 00 00 00 00
*/
if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
priv->wep_key_len[2] || priv->wep_key_len[3]) {
/* Only set wep keys if we have at least one of them */
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
cmd.action = cpu_to_le16(CMD_ACT_ADD);
for (i = 0; i < 4; i++) {
switch (priv->wep_key_len[i]) {
case WLAN_KEY_LEN_WEP40:
cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
break;
case WLAN_KEY_LEN_WEP104:
cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
break;
default:
cmd.keytype[i] = 0;
break;
}
memcpy(cmd.keymaterial[i], priv->wep_key[i],
priv->wep_key_len[i]);
}
ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
} else {
/* Otherwise remove all wep keys */
ret = lbs_remove_wep_keys(priv);
}
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Enable/Disable RSN status
*/
static int lbs_enable_rsn(struct lbs_private *priv, int enable)
{
struct cmd_ds_802_11_enable_rsn cmd;
int ret;
lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
/*
* cmd 2f 00
* size 0c 00
* sequence xx xx
* result 00 00
* action 01 00 ACT_SET
* enable 01 00
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(CMD_ACT_SET);
cmd.enable = cpu_to_le16(enable);
ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Set WPA/WPA key material
*/
/* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
* get rid of WEXT, this should go into host.h */
struct cmd_key_material {
struct cmd_header hdr;
__le16 action;
struct MrvlIEtype_keyParamSet param;
} __attribute__ ((packed));
static int lbs_set_key_material(struct lbs_private *priv,
int key_type,
int key_info,
u8 *key, u16 key_len)
{
struct cmd_key_material cmd;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
/*
* Example for WPA (TKIP):
*
* cmd 5e 00
* size 34 00
* sequence xx xx
* result 00 00
* action 01 00
* TLV type 00 01 key param
* length 00 26
* key type 01 00 TKIP
* key info 06 00 UNICAST | ENABLED
* key len 20 00
* key 32 bytes
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(CMD_ACT_SET);
cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
cmd.param.keytypeid = cpu_to_le16(key_type);
cmd.param.keyinfo = cpu_to_le16(key_info);
cmd.param.keylen = cpu_to_le16(key_len);
if (key && key_len)
memcpy(cmd.param.key, key, key_len);
ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Sets the auth type (open, shared, etc) in the firmware. That
* we use CMD_802_11_AUTHENTICATE is misleading, this firmware
* command doesn't send an authentication frame at all, it just
* stores the auth_type.
*/
static int lbs_set_authtype(struct lbs_private *priv,
struct cfg80211_connect_params *sme)
{
struct cmd_ds_802_11_authenticate cmd;
int ret;
lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
/*
* cmd 11 00
* size 19 00
* sequence xx xx
* result 00 00
* BSS id 00 13 19 80 da 30
* auth type 00
* reserved 00 00 00 00 00 00 00 00 00 00
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
if (sme->bssid)
memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
/* convert auth_type */
ret = lbs_auth_to_authtype(sme->auth_type);
if (ret < 0)
goto done;
cmd.authtype = ret;
ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
done:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/*
* Create association request
*/
#define LBS_ASSOC_MAX_CMD_SIZE \
(sizeof(struct cmd_ds_802_11_associate) \
- 512 /* cmd_ds_802_11_associate.iebuf */ \
+ LBS_MAX_SSID_TLV_SIZE \
+ LBS_MAX_CHANNEL_TLV_SIZE \
+ LBS_MAX_CF_PARAM_TLV_SIZE \
+ LBS_MAX_AUTH_TYPE_TLV_SIZE \
+ LBS_MAX_WPA_TLV_SIZE)
static int lbs_associate(struct lbs_private *priv,
struct cfg80211_bss *bss,
struct cfg80211_connect_params *sme)
{
struct cmd_ds_802_11_associate_response *resp;
struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
GFP_KERNEL);
const u8 *ssid_eid;
size_t len, resp_ie_len;
int status;
int ret;
u8 *pos = &(cmd->iebuf[0]);
lbs_deb_enter(LBS_DEB_CFG80211);
if (!cmd) {
ret = -ENOMEM;
goto done;
}
/*
* cmd 50 00
* length 34 00
* sequence xx xx
* result 00 00
* BSS id 00 13 19 80 da 30
* capabilities 11 00
* listen interval 0a 00
* beacon interval 00 00
* DTIM period 00
* TLVs xx (up to 512 bytes)
*/
cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
/* Fill in static fields */
memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
cmd->capability = cpu_to_le16(bss->capability);
/* add SSID TLV */
ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
if (ssid_eid)
pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
else
lbs_deb_assoc("no SSID\n");
/* add DS param TLV */
if (bss->channel)
pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
else
lbs_deb_assoc("no channel\n");
/* add (empty) CF param TLV */
pos += lbs_add_cf_param_tlv(pos);
/* add rates TLV */
pos += lbs_add_common_rates_tlv(pos, bss);
/* add auth type TLV */
if (priv->fwrelease >= 0x09000000)
pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
/* add WPA/WPA2 TLV */
if (sme->ie && sme->ie_len)
pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
(u16)(pos - (u8 *) &cmd->iebuf);
cmd->hdr.size = cpu_to_le16(len);
/* store for later use */
memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
if (ret)
goto done;
/* generate connect message to cfg80211 */
resp = (void *) cmd; /* recast for easier field access */
status = le16_to_cpu(resp->statuscode);
/* Convert statis code of old firmware */
if (priv->fwrelease < 0x09000000)
switch (status) {
case 0:
break;
case 1:
lbs_deb_assoc("invalid association parameters\n");
status = WLAN_STATUS_CAPS_UNSUPPORTED;
break;
case 2:
lbs_deb_assoc("timer expired while waiting for AP\n");
status = WLAN_STATUS_AUTH_TIMEOUT;
break;
case 3:
lbs_deb_assoc("association refused by AP\n");
status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
break;
case 4:
lbs_deb_assoc("authentication refused by AP\n");
status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
break;
default:
lbs_deb_assoc("association failure %d\n", status);
status = WLAN_STATUS_UNSPECIFIED_FAILURE;
}
lbs_deb_assoc("status %d, capability 0x%04x\n", status,
le16_to_cpu(resp->capability));
resp_ie_len = le16_to_cpu(resp->hdr.size)
- sizeof(resp->hdr)
- 6;
cfg80211_connect_result(priv->dev,
priv->assoc_bss,
sme->ie, sme->ie_len,
resp->iebuf, resp_ie_len,
status,
GFP_KERNEL);
if (status == 0) {
/* TODO: get rid of priv->connect_status */
priv->connect_status = LBS_CONNECTED;
netif_carrier_on(priv->dev);
if (!priv->tx_pending_len)
netif_tx_wake_all_queues(priv->dev);
}
done:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_connect_params *sme)
{
struct lbs_private *priv = wiphy_priv(wiphy);
struct cfg80211_bss *bss = NULL;
int ret = 0;
u8 preamble = RADIO_PREAMBLE_SHORT;
lbs_deb_enter(LBS_DEB_CFG80211);
if (sme->bssid) {
bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
sme->ssid, sme->ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
} else {
/*
* Here we have an impedance mismatch. The firmware command
* CMD_802_11_ASSOCIATE always needs a BSSID, it cannot
* connect otherwise. However, for the connect-API of
* cfg80211 the bssid is purely optional. We don't get one,
* except the user specifies one on the "iw" command line.
*
* If we don't got one, we could initiate a scan and look
* for the best matching cfg80211_bss entry.
*
* Or, better yet, net/wireless/sme.c get's rewritten into
* something more generally useful.
*/
lbs_pr_err("TODO: no BSS specified\n");
ret = -ENOTSUPP;
goto done;
}
if (!bss) {
lbs_pr_err("assicate: bss %pM not in scan results\n",
sme->bssid);
ret = -ENOENT;
goto done;
}
lbs_deb_assoc("trying %pM", sme->bssid);
lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
sme->crypto.cipher_group,
sme->key_idx, sme->key_len);
/* As this is a new connection, clear locally stored WEP keys */
priv->wep_tx_key = 0;
memset(priv->wep_key, 0, sizeof(priv->wep_key));
memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
/* set/remove WEP keys */
switch (sme->crypto.cipher_group) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
/* Store provided WEP keys in priv-> */
priv->wep_tx_key = sme->key_idx;
priv->wep_key_len[sme->key_idx] = sme->key_len;
memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
/* Set WEP keys and WEP mode */
lbs_set_wep_keys(priv);
priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
lbs_set_mac_control(priv);
/* No RSN mode for WEP */
lbs_enable_rsn(priv, 0);
break;
case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
/*
* If we don't have no WEP, no WPA and no WPA2,
* we remove all keys like in the WPA/WPA2 setup,
* we just don't set RSN.
*
* Therefore: fall-throught
*/
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
/* Remove WEP keys and WEP mode */
lbs_remove_wep_keys(priv);
priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
lbs_set_mac_control(priv);
/* clear the WPA/WPA2 keys */
lbs_set_key_material(priv,
KEY_TYPE_ID_WEP, /* doesn't matter */
KEY_INFO_WPA_UNICAST,
NULL, 0);
lbs_set_key_material(priv,
KEY_TYPE_ID_WEP, /* doesn't matter */
KEY_INFO_WPA_MCAST,
NULL, 0);
/* RSN mode for WPA/WPA2 */
lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
break;
default:
lbs_pr_err("unsupported cipher group 0x%x\n",
sme->crypto.cipher_group);
ret = -ENOTSUPP;
goto done;
}
lbs_set_authtype(priv, sme);
lbs_set_radio(priv, preamble, 1);
/* Do the actual association */
lbs_associate(priv, bss, sme);
done:
if (bss)
cfg80211_put_bss(bss);
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/* callback from lbs_cfg_disconnect() */
static int lbs_cfg_ret_disconnect(struct lbs_private *priv, unsigned long dummy,
struct cmd_header *resp)
{
lbs_deb_enter(LBS_DEB_CFG80211);
cfg80211_disconnected(priv->dev,
priv->disassoc_reason,
NULL, 0, /* TODO? */
GFP_KERNEL);
/* TODO: get rid of priv->connect_status */
priv->connect_status = LBS_CONNECTED;
lbs_deb_leave(LBS_DEB_CFG80211);
return 0;
}
static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
u16 reason_code)
{
struct lbs_private *priv = wiphy_priv(wiphy);
struct cmd_ds_802_11_deauthenticate cmd;
lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d", chan->center_freq, channel_type);
lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
if (channel_type != NL80211_CHAN_NO_HT)
/* store for lbs_cfg_ret_disconnect() */
priv->disassoc_reason = reason_code;
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
/* Mildly ugly to use a locally store my own BSSID ... */
memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
cmd.reasoncode = cpu_to_le16(reason_code);
__lbs_cmd_async(priv, CMD_802_11_DEAUTHENTICATE,
&cmd.hdr, sizeof(cmd),
lbs_cfg_ret_disconnect, 0);
return 0;
}
static int lbs_cfg_set_default_key(struct wiphy *wiphy,
struct net_device *netdev,
u8 key_index)
{
struct lbs_private *priv = wiphy_priv(wiphy);
lbs_deb_enter(LBS_DEB_CFG80211);
if (key_index != priv->wep_tx_key) {
lbs_deb_assoc("set_default_key: to %d\n", key_index);
priv->wep_tx_key = key_index;
lbs_set_wep_keys(priv);
}
return 0;
}
static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
u8 idx, const u8 *mac_addr,
struct key_params *params)
{
struct lbs_private *priv = wiphy_priv(wiphy);
u16 key_info;
u16 key_type;
int ret = 0;
lbs_deb_enter(LBS_DEB_CFG80211);
lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
params->cipher, mac_addr);
lbs_deb_assoc("add_key: key index %d, key len %d\n",
idx, params->key_len);
if (params->key_len)
lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
params->key, params->key_len);
lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
if (params->seq_len)
lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
params->seq, params->seq_len);
switch (params->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
/* actually compare if something has changed ... */
if ((priv->wep_key_len[idx] != params->key_len) ||
memcmp(priv->wep_key[idx],
params->key, params->key_len) != 0) {
priv->wep_key_len[idx] = params->key_len;
memcpy(priv->wep_key[idx],
params->key, params->key_len);
lbs_set_wep_keys(priv);
}
break;
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
? KEY_INFO_WPA_UNICAST
: KEY_INFO_WPA_MCAST);
key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
? KEY_TYPE_ID_TKIP
: KEY_TYPE_ID_AES;
lbs_set_key_material(priv,
key_type,
key_info,
params->key, params->key_len);
break;
default:
lbs_pr_err("unhandled cipher 0x%x\n", params->cipher);
ret = -ENOTSUPP;
break;
}
return ret;
}
static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, const u8 *mac_addr)
{
lbs_deb_enter(LBS_DEB_CFG80211);
lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
key_index, mac_addr);
#ifdef TODO
struct lbs_private *priv = wiphy_priv(wiphy);
/*
* I think can keep this a NO-OP, because:
* - we clear all keys whenever we do lbs_cfg_connect() anyway
* - neither "iw" nor "wpa_supplicant" won't call this during
* an ongoing connection
* - TODO: but I have to check if this is still true when
* I set the AP to periodic re-keying
* - we've not kzallec() something when we've added a key at
* lbs_cfg_connect() or lbs_cfg_add_key().
*
* This causes lbs_cfg_del_key() only called at disconnect time,
* where we'd just waste time deleting a key that is not going
* to be used anyway.
*/
if (key_index < 3 && priv->wep_key_len[key_index]) {
priv->wep_key_len[key_index] = 0;
lbs_set_wep_keys(priv);
}
#endif
return 0;
}
/***************************************************************************
* Monitor mode
*/
/* like "struct cmd_ds_802_11_monitor_mode", but with cmd_header. Once we
* get rid of WEXT, this should go into host.h */
struct cmd_monitor_mode {
struct cmd_header hdr;
__le16 action;
__le16 mode;
} __attribute__ ((packed));
static int lbs_enable_monitor_mode(struct lbs_private *priv, int mode)
{
struct cmd_monitor_mode cmd;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
/*
* cmd 98 00
* size 0c 00
* sequence xx xx
* result 00 00
* action 01 00 ACT_SET
* enable 01 00
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(CMD_ACT_SET);
cmd.mode = cpu_to_le16(mode);
ret = lbs_cmd_with_response(priv, CMD_802_11_MONITOR_MODE, &cmd);
if (ret == 0)
priv->dev->type = ARPHRD_IEEE80211_RADIOTAP;
else
priv->dev->type = ARPHRD_ETHER;
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/***************************************************************************
* Get station
*/
/*
* Returns the signal or 0 in case of an error.
*/
/* like "struct cmd_ds_802_11_rssi", but with cmd_header. Once we get rid
* of WEXT, this should go into host.h */
struct cmd_rssi {
struct cmd_header hdr;
__le16 n_or_snr;
__le16 nf;
__le16 avg_snr;
__le16 avg_nf;
} __attribute__ ((packed));
static int lbs_get_signal(struct lbs_private *priv, s8 *signal, s8 *noise)
{
struct cmd_rssi cmd;
int ret;
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.n_or_snr = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
ret = lbs_cmd_with_response(priv, CMD_802_11_RSSI, &cmd);
if (ret == 0) {
*signal = CAL_RSSI(le16_to_cpu(cmd.n_or_snr),
le16_to_cpu(cmd.nf));
*noise = CAL_NF(le16_to_cpu(cmd.nf));
}
return ret;
}
static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
u8 *mac, struct station_info *sinfo)
{
struct lbs_private *priv = wiphy_priv(wiphy);
s8 signal, noise;
int ret;
size_t i;
lbs_deb_enter(LBS_DEB_CFG80211);
sinfo->filled |= STATION_INFO_TX_BYTES |
STATION_INFO_TX_PACKETS |
STATION_INFO_RX_BYTES |
STATION_INFO_RX_PACKETS;
sinfo->tx_bytes = priv->dev->stats.tx_bytes;
sinfo->tx_packets = priv->dev->stats.tx_packets;
sinfo->rx_bytes = priv->dev->stats.rx_bytes;
sinfo->rx_packets = priv->dev->stats.rx_packets;
/* Get current RSSI */
ret = lbs_get_signal(priv, &signal, &noise);
if (ret == 0) {
sinfo->signal = signal;
sinfo->filled |= STATION_INFO_SIGNAL;
}
/* Convert priv->cur_rate from hw_value to NL80211 value */
for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
if (priv->cur_rate == lbs_rates[i].hw_value) {
sinfo->txrate.legacy = lbs_rates[i].bitrate;
sinfo->filled |= STATION_INFO_TX_BITRATE;
break;
}
}
return 0;
}
/***************************************************************************
* "Site survey", here just current channel and noise level
*/
static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
int idx, struct survey_info *survey)
{
struct lbs_private *priv = wiphy_priv(wiphy);
s8 signal, noise;
int ret;
if (idx != 0)
ret = -ENOENT;
lbs_deb_enter(LBS_DEB_CFG80211);
survey->channel = ieee80211_get_channel(wiphy,
ieee80211_channel_to_frequency(priv->channel));
ret = lbs_get_signal(priv, &signal, &noise);
if (ret == 0) {
survey->filled = SURVEY_INFO_NOISE_DBM;
survey->noise = noise;
}
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/***************************************************************************
* Change interface
*/
static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = 0;
lbs_deb_enter(LBS_DEB_CFG80211);
switch (type) {
case NL80211_IFTYPE_MONITOR:
ret = lbs_enable_monitor_mode(priv, 1);
break;
case NL80211_IFTYPE_STATION:
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
ret = lbs_enable_monitor_mode(priv, 0);
if (!ret)
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
break;
case NL80211_IFTYPE_ADHOC:
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
ret = lbs_enable_monitor_mode(priv, 0);
if (!ret)
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
break;
default:
ret = -ENOTSUPP;
}
if (!ret)
priv->wdev->iftype = type;
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/***************************************************************************
* IBSS (Ad-Hoc)
*/
/* The firmware needs the following bits masked out of the beacon-derived
* capability field when associating/joining to a BSS:
* 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
*/
#define CAPINFO_MASK (~(0xda00))
static void lbs_join_post(struct lbs_private *priv,
struct cfg80211_ibss_params *params,
u8 *bssid, u16 capability)
{
u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
2 + 4 + /* basic rates */
2 + 1 + /* DS parameter */
2 + 2 + /* atim */
2 + 8]; /* extended rates */
u8 *fake = fake_ie;
lbs_deb_enter(LBS_DEB_CFG80211);
/*
* For cfg80211_inform_bss, we'll need a fake IE, as we can't get
* the real IE from the firmware. So we fabricate a fake IE based on
* what the firmware actually sends (sniffed with wireshark).
*/
/* Fake SSID IE */
*fake++ = WLAN_EID_SSID;
*fake++ = params->ssid_len;
memcpy(fake, params->ssid, params->ssid_len);
fake += params->ssid_len;
/* Fake supported basic rates IE */
*fake++ = WLAN_EID_SUPP_RATES;
*fake++ = 4;
*fake++ = 0x82;
*fake++ = 0x84;
*fake++ = 0x8b;
*fake++ = 0x96;
/* Fake DS channel IE */
*fake++ = WLAN_EID_DS_PARAMS;
*fake++ = 1;
*fake++ = params->channel->hw_value;
/* Fake IBSS params IE */
*fake++ = WLAN_EID_IBSS_PARAMS;
*fake++ = 2;
*fake++ = 0; /* ATIM=0 */
*fake++ = 0;
/* Fake extended rates IE, TODO: don't add this for 802.11b only,
* but I don't know how this could be checked */
*fake++ = WLAN_EID_EXT_SUPP_RATES;
*fake++ = 8;
*fake++ = 0x0c;
*fake++ = 0x12;
*fake++ = 0x18;
*fake++ = 0x24;
*fake++ = 0x30;
*fake++ = 0x48;
*fake++ = 0x60;
*fake++ = 0x6c;
lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
cfg80211_inform_bss(priv->wdev->wiphy,
params->channel,
bssid,
0,
capability,
params->beacon_interval,
fake_ie, fake - fake_ie,
0, GFP_KERNEL);
cfg80211_ibss_joined(priv->dev, bssid, GFP_KERNEL);
/* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
priv->connect_status = LBS_CONNECTED;
netif_carrier_on(priv->dev);
if (!priv->tx_pending_len)
netif_wake_queue(priv->dev);
lbs_deb_leave(LBS_DEB_CFG80211);
}
static int lbs_ibss_join_existing(struct lbs_private *priv,
struct cfg80211_ibss_params *params,
struct cfg80211_bss *bss)
{
const u8 *rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
struct cmd_ds_802_11_ad_hoc_join cmd;
u8 preamble = RADIO_PREAMBLE_SHORT;
int ret = 0;
lbs_deb_enter(LBS_DEB_CFG80211);
/* TODO: set preamble based on scan result */
ret = lbs_set_radio(priv, preamble, 1);
if (ret)
goto out;
/*
* Example CMD_802_11_AD_HOC_JOIN command:
*
* command 2c 00 CMD_802_11_AD_HOC_JOIN
* size 65 00
* sequence xx xx
* result 00 00
* bssid 02 27 27 97 2f 96
* ssid 49 42 53 53 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* type 02 CMD_BSS_TYPE_IBSS
* beacon period 64 00
* dtim period 00
* timestamp 00 00 00 00 00 00 00 00
* localtime 00 00 00 00 00 00 00 00
* IE DS 03
* IE DS len 01
* IE DS channel 01
* reserveed 00 00 00 00
* IE IBSS 06
* IE IBSS len 02
* IE IBSS atim 00 00
* reserved 00 00 00 00
* capability 02 00
* rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
* fail timeout ff 00
* probe delay 00 00
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
cmd.bss.type = CMD_BSS_TYPE_IBSS;
cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
cmd.bss.ds.header.len = 1;
cmd.bss.ds.channel = params->channel->hw_value;
cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
cmd.bss.ibss.header.len = 2;
cmd.bss.ibss.atimwindow = 0;
cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
/* set rates to the intersection of our rates and the rates in the
bss */
if (!rates_eid) {
lbs_add_rates(cmd.bss.rates);
} else {
int hw, i;
u8 rates_max = rates_eid[1];
u8 *rates = cmd.bss.rates;
for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
u8 hw_rate = lbs_rates[hw].bitrate / 5;
for (i = 0; i < rates_max; i++) {
if (hw_rate == (rates_eid[i+2] & 0x7f)) {
u8 rate = rates_eid[i+2];
if (rate == 0x02 || rate == 0x04 ||
rate == 0x0b || rate == 0x16)
rate |= 0x80;
*rates++ = rate;
}
}
}
}
/* Only v8 and below support setting this */
if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
}
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
if (ret)
goto out;
/*
* This is a sample response to CMD_802_11_AD_HOC_JOIN:
*
* response 2c 80
* size 09 00
* sequence xx xx
* result 00 00
* reserved 00
*/
lbs_join_post(priv, params, bss->bssid, bss->capability);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static int lbs_ibss_start_new(struct lbs_private *priv,
struct cfg80211_ibss_params *params)
{
struct cmd_ds_802_11_ad_hoc_start cmd;
struct cmd_ds_802_11_ad_hoc_result *resp =
(struct cmd_ds_802_11_ad_hoc_result *) &cmd;
u8 preamble = RADIO_PREAMBLE_SHORT;
int ret = 0;
u16 capability;
lbs_deb_enter(LBS_DEB_CFG80211);
ret = lbs_set_radio(priv, preamble, 1);
if (ret)
goto out;
/*
* Example CMD_802_11_AD_HOC_START command:
*
* command 2b 00 CMD_802_11_AD_HOC_START
* size b1 00
* sequence xx xx
* result 00 00
* ssid 54 45 53 54 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* bss type 02
* beacon period 64 00
* dtim period 00
* IE IBSS 06
* IE IBSS len 02
* IE IBSS atim 00 00
* reserved 00 00 00 00
* IE DS 03
* IE DS len 01
* IE DS channel 01
* reserved 00 00 00 00
* probe delay 00 00
* capability 02 00
* rates 82 84 8b 96 (basic rates with have bit 7 set)
* 0c 12 18 24 30 48 60 6c
* padding 100 bytes
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
memcpy(cmd.ssid, params->ssid, params->ssid_len);
cmd.bsstype = CMD_BSS_TYPE_IBSS;
cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
cmd.ibss.header.len = 2;
cmd.ibss.atimwindow = 0;
cmd.ds.header.id = WLAN_EID_DS_PARAMS;
cmd.ds.header.len = 1;
cmd.ds.channel = params->channel->hw_value;
/* Only v8 and below support setting probe delay */
if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
/* TODO: mix in WLAN_CAPABILITY_PRIVACY */
capability = WLAN_CAPABILITY_IBSS;
cmd.capability = cpu_to_le16(capability);
lbs_add_rates(cmd.rates);
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
if (ret)
goto out;
/*
* This is a sample response to CMD_802_11_AD_HOC_JOIN:
*
* response 2b 80
* size 14 00
* sequence xx xx
* result 00 00
* reserved 00
* bssid 02 2b 7b 0f 86 0e
*/
lbs_join_post(priv, params, resp->bssid, capability);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = 0;
struct cfg80211_bss *bss;
DECLARE_SSID_BUF(ssid_buf);
lbs_deb_enter(LBS_DEB_CFG80211);
if (!params->channel) {
ret = -ENOTSUPP;
goto out;
}
ret = lbs_set_channel(priv, params->channel->hw_value);
if (ret)
goto out;
ret = lbs_set_channel(priv, chan->hw_value);
/* Search if someone is beaconing. This assumes that the
* bss list is populated already */
bss = cfg80211_get_bss(wiphy, params->channel, params->bssid,
params->ssid, params->ssid_len,
WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
if (bss) {
ret = lbs_ibss_join_existing(priv, params, bss);
cfg80211_put_bss(bss);
} else
ret = lbs_ibss_start_new(priv, params);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
......@@ -99,10 +1918,45 @@ static int lbs_cfg_set_channel(struct wiphy *wiphy,
}
static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
struct lbs_private *priv = wiphy_priv(wiphy);
struct cmd_ds_802_11_ad_hoc_stop cmd;
int ret = 0;
lbs_deb_enter(LBS_DEB_CFG80211);
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
/* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
lbs_mac_event_disconnected(priv);
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/***************************************************************************
* Initialization
*/
static struct cfg80211_ops lbs_cfg80211_ops = {
.set_channel = lbs_cfg_set_channel,
.scan = lbs_cfg_scan,
.connect = lbs_cfg_connect,
.disconnect = lbs_cfg_disconnect,
.add_key = lbs_cfg_add_key,
.del_key = lbs_cfg_del_key,
.set_default_key = lbs_cfg_set_default_key,
.get_station = lbs_cfg_get_station,
.dump_survey = lbs_get_survey,
.change_virtual_intf = lbs_change_intf,
.join_ibss = lbs_join_ibss,
.leave_ibss = lbs_leave_ibss,
};
......@@ -142,6 +1996,36 @@ struct wireless_dev *lbs_cfg_alloc(struct device *dev)
}
static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
{
struct region_code_mapping {
const char *cn;
int code;
};
/* Section 5.17.2 */
static struct region_code_mapping regmap[] = {
{"US ", 0x10}, /* US FCC */
{"CA ", 0x20}, /* Canada */
{"EU ", 0x30}, /* ETSI */
{"ES ", 0x31}, /* Spain */
{"FR ", 0x32}, /* France */
{"JP ", 0x40}, /* Japan */
};
size_t i;
lbs_deb_enter(LBS_DEB_CFG80211);
for (i = 0; i < ARRAY_SIZE(regmap); i++)
if (regmap[i].code == priv->regioncode) {
regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
break;
}
lbs_deb_leave(LBS_DEB_CFG80211);
}
/*
* This function get's called after lbs_setup_firmware() determined the
* firmware capabities. So we can setup the wiphy according to our
......@@ -157,10 +2041,12 @@ int lbs_cfg_register(struct lbs_private *priv)
wdev->wiphy->max_scan_ssids = 1;
wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
/* TODO: BIT(NL80211_IFTYPE_ADHOC); */
wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
wdev->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
if (lbs_rtap_supported(priv))
wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
/* TODO: honor priv->regioncode */
wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
/*
......@@ -180,11 +2066,22 @@ int lbs_cfg_register(struct lbs_private *priv)
if (ret)
lbs_pr_err("cannot register network device\n");
INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
lbs_cfg_set_regulatory_hint(priv);
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
void lbs_scan_deinit(struct lbs_private *priv)
{
lbs_deb_enter(LBS_DEB_CFG80211);
cancel_delayed_work_sync(&priv->scan_work);
}
void lbs_cfg_free(struct lbs_private *priv)
{
struct wireless_dev *wdev = priv->wdev;
......
drivers/net/wireless/libertas/cfg.h
View file @ e86dc1ca
#ifndef __LBS_CFG80211_H__
#define __LBS_CFG80211_H__
#include "dev.h"
struct device;
struct lbs_private;
struct wireless_dev *lbs_cfg_alloc(struct device *dev);
int lbs_cfg_register(struct lbs_private *priv);
void lbs_cfg_free(struct lbs_private *priv);
int lbs_send_specific_ssid_scan(struct lbs_private *priv, u8 *ssid,
u8 ssid_len);
int lbs_scan_networks(struct lbs_private *priv, int full_scan);
void lbs_cfg_scan_worker(struct work_struct *work);
/* All of those are TODOs: */
#define lbs_cmd_802_11_rssi(priv, cmdptr) (0)
#define lbs_ret_802_11_rssi(priv, resp) (0)
#define lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action) (0)
#define lbs_ret_802_11_bcn_ctrl(priv, resp) (0)
void lbs_send_disconnect_notification(struct lbs_private *priv);
void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event);
void lbs_scan_deinit(struct lbs_private *priv);
#endif
drivers/net/wireless/libertas/cmd.c
View file @ e86dc1ca
......@@ -7,13 +7,8 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include "host.h"
#include "decl.h"
#include "defs.h"
#include "dev.h"
#include "assoc.h"
#include "wext.h"
#include "scan.h"
#include "cfg.h"
#include "cmd.h"
......@@ -177,11 +172,6 @@ int lbs_update_hw_spec(struct lbs_private *priv)
if (priv->mesh_dev)
memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
ret = -1;
goto out;
}
out:
lbs_deb_leave(LBS_DEB_CMD);
return ret;
......@@ -1325,6 +1315,15 @@ int lbs_execute_next_command(struct lbs_private *priv)
* check if in power save mode, if yes, put the device back
* to PS mode
*/
#ifdef TODO
/*
* This was the old code for libertas+wext. Someone that
* understands this beast should re-code it in a sane way.
*
* I actually don't understand why this is related to WPA
* and to connection status, shouldn't powering should be
* independ of such things?
*/
if ((priv->psmode != LBS802_11POWERMODECAM) &&
(priv->psstate == PS_STATE_FULL_POWER) &&
((priv->connect_status == LBS_CONNECTED) ||
......@@ -1346,6 +1345,7 @@ int lbs_execute_next_command(struct lbs_private *priv)
lbs_ps_sleep(priv, 0);
}
}
#endif
}
ret = 0;
......
drivers/net/wireless/libertas/cmdresp.c
View file @ e86dc1ca
......@@ -5,18 +5,10 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/if_arp.h>
#include <linux/netdevice.h>
#include <asm/unaligned.h>
#include <net/iw_handler.h>
#include <net/cfg80211.h>
#include "host.h"
#include "decl.h"
#include "cmd.h"
#include "defs.h"
#include "dev.h"
#include "assoc.h"
#include "wext.h"
#include "cfg.h"
#include "cmd.h"
/**
......@@ -50,23 +42,8 @@ void lbs_mac_event_disconnected(struct lbs_private *priv)
priv->currenttxskb = NULL;
priv->tx_pending_len = 0;
/* reset SNR/NF/RSSI values */
memset(priv->SNR, 0x00, sizeof(priv->SNR));
memset(priv->NF, 0x00, sizeof(priv->NF));
memset(priv->RSSI, 0x00, sizeof(priv->RSSI));
memset(priv->rawSNR, 0x00, sizeof(priv->rawSNR));
memset(priv->rawNF, 0x00, sizeof(priv->rawNF));
priv->nextSNRNF = 0;
priv->numSNRNF = 0;
priv->connect_status = LBS_DISCONNECTED;
/* Clear out associated SSID and BSSID since connection is
* no longer valid.
*/
memset(&priv->curbssparams.bssid, 0, ETH_ALEN);
memset(&priv->curbssparams.ssid, 0, IEEE80211_MAX_SSID_LEN);
priv->curbssparams.ssid_len = 0;
if (priv->psstate != PS_STATE_FULL_POWER) {
/* make firmware to exit PS mode */
lbs_deb_cmd("disconnected, so exit PS mode\n");
......@@ -262,7 +239,7 @@ int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
* ad-hoc mode. It takes place in
* lbs_execute_next_command().
*/
if (priv->mode == IW_MODE_ADHOC &&
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR &&
action == CMD_SUBCMD_ENTER_PS)
priv->psmode = LBS802_11POWERMODECAM;
} else if (action == CMD_SUBCMD_ENTER_PS) {
......
drivers/net/wireless/libertas/debugfs.c
View file @ e86dc1ca
#include <linux/module.h>
#include <linux/dcache.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <net/iw_handler.h>
#include <net/lib80211.h>
#include "dev.h"
#include "decl.h"
#include "host.h"
#include "debugfs.h"
#include "cmd.h"
#include "debugfs.h"
static struct dentry *lbs_dir;
static char *szStates[] = {
......@@ -60,51 +55,6 @@ static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
return res;
}
static ssize_t lbs_getscantable(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
struct lbs_private *priv = file->private_data;
size_t pos = 0;
int numscansdone = 0, res;
unsigned long addr = get_zeroed_page(GFP_KERNEL);
char *buf = (char *)addr;
DECLARE_SSID_BUF(ssid);
struct bss_descriptor * iter_bss;
if (!buf)
return -ENOMEM;
pos += snprintf(buf+pos, len-pos,
"# | ch | rssi | bssid | cap | Qual | SSID\n");
mutex_lock(&priv->lock);
list_for_each_entry (iter_bss, &priv->network_list, list) {
u16 ibss = (iter_bss->capability & WLAN_CAPABILITY_IBSS);
u16 privacy = (iter_bss->capability & WLAN_CAPABILITY_PRIVACY);
u16 spectrum_mgmt = (iter_bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT);
pos += snprintf(buf+pos, len-pos, "%02u| %03d | %04d | %pM |",
numscansdone, iter_bss->channel, iter_bss->rssi,
iter_bss->bssid);
pos += snprintf(buf+pos, len-pos, " %04x-", iter_bss->capability);
pos += snprintf(buf+pos, len-pos, "%c%c%c |",
ibss ? 'A' : 'I', privacy ? 'P' : ' ',
spectrum_mgmt ? 'S' : ' ');
pos += snprintf(buf+pos, len-pos, " %04d |", SCAN_RSSI(iter_bss->rssi));
pos += snprintf(buf+pos, len-pos, " %s\n",
print_ssid(ssid, iter_bss->ssid,
iter_bss->ssid_len));
numscansdone++;
}
mutex_unlock(&priv->lock);
res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
free_page(addr);
return res;
}
static ssize_t lbs_sleepparams_write(struct file *file,
const char __user *user_buf, size_t count,
loff_t *ppos)
......@@ -723,8 +673,6 @@ struct lbs_debugfs_files {
static const struct lbs_debugfs_files debugfs_files[] = {
{ "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
{ "getscantable", 0444, FOPS(lbs_getscantable,
write_file_dummy), },
{ "sleepparams", 0644, FOPS(lbs_sleepparams_read,
lbs_sleepparams_write), },
};
......
drivers/net/wireless/libertas/decl.h
View file @ e86dc1ca
/**
* This file contains declaration referring to
* functions defined in other source files
......@@ -34,6 +35,8 @@ int lbs_start_card(struct lbs_private *priv);
void lbs_stop_card(struct lbs_private *priv);
void lbs_host_to_card_done(struct lbs_private *priv);
int lbs_rtap_supported(struct lbs_private *priv);
int lbs_set_mac_address(struct net_device *dev, void *addr);
void lbs_set_multicast_list(struct net_device *dev);
......
drivers/net/wireless/libertas/dev.h
View file @ e86dc1ca
......@@ -7,8 +7,8 @@
#define _LBS_DEV_H_
#include "mesh.h"
#include "scan.h"
#include "assoc.h"
#include "defs.h"
#include "host.h"
#include <linux/kfifo.h>
......@@ -29,7 +29,6 @@ struct lbs_private {
/* Basic networking */
struct net_device *dev;
u32 connect_status;
int infra_open;
struct work_struct mcast_work;
u32 nr_of_multicastmacaddr;
u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN];
......@@ -37,6 +36,9 @@ struct lbs_private {
/* CFG80211 */
struct wireless_dev *wdev;
bool wiphy_registered;
struct cfg80211_scan_request *scan_req;
u8 assoc_bss[ETH_ALEN];
u8 disassoc_reason;
/* Mesh */
struct net_device *mesh_dev; /* Virtual device */
......@@ -49,10 +51,6 @@ struct lbs_private {
u8 mesh_ssid_len;
#endif
/* Monitor mode */
struct net_device *rtap_net_dev;
u32 monitormode;
/* Debugfs */
struct dentry *debugfs_dir;
struct dentry *debugfs_debug;
......@@ -133,14 +131,10 @@ struct lbs_private {
struct workqueue_struct *work_thread;
/** Encryption stuff */
struct lbs_802_11_security secinfo;
struct enc_key wpa_mcast_key;
struct enc_key wpa_unicast_key;
u8 wpa_ie[MAX_WPA_IE_LEN];
u8 wpa_ie_len;
u16 wep_tx_keyidx;
struct enc_key wep_keys[4];
u8 authtype_auto;
u8 wep_tx_key;
u8 wep_key[4][WLAN_KEY_LEN_WEP104];
u8 wep_key_len[4];
/* Wake On LAN */
uint32_t wol_criteria;
......@@ -161,6 +155,7 @@ struct lbs_private {
/* NIC/link operation characteristics */
u16 mac_control;
u8 radio_on;
u8 cur_rate;
u8 channel;
s16 txpower_cur;
s16 txpower_min;
......@@ -169,42 +164,6 @@ struct lbs_private {
/** Scanning */
struct delayed_work scan_work;
int scan_channel;
/* remember which channel was scanned last, != 0 if currently scanning */
u8 scan_ssid[IEEE80211_MAX_SSID_LEN + 1];
u8 scan_ssid_len;
/* Associating */
struct delayed_work assoc_work;
struct current_bss_params curbssparams;
u8 mode;
struct list_head network_list;
struct list_head network_free_list;
struct bss_descriptor *networks;
struct assoc_request * pending_assoc_req;
struct assoc_request * in_progress_assoc_req;
uint16_t enablehwauto;
/* ADHOC */
u16 beacon_period;
u8 beacon_enable;
u8 adhoccreate;
/* WEXT */
char name[DEV_NAME_LEN];
u8 nodename[16];
struct iw_statistics wstats;
u8 cur_rate;
#define MAX_REGION_CHANNEL_NUM 2
struct region_channel region_channel[MAX_REGION_CHANNEL_NUM];
/** Requested Signal Strength*/
u16 SNR[MAX_TYPE_B][MAX_TYPE_AVG];
u16 NF[MAX_TYPE_B][MAX_TYPE_AVG];
u8 RSSI[MAX_TYPE_B][MAX_TYPE_AVG];
u8 rawSNR[DEFAULT_DATA_AVG_FACTOR];
u8 rawNF[DEFAULT_DATA_AVG_FACTOR];
u16 nextSNRNF;
u16 numSNRNF;
};
extern struct cmd_confirm_sleep confirm_sleep;
......
drivers/net/wireless/libertas/ethtool.c
View file @ e86dc1ca
......@@ -2,13 +2,8 @@
#include <linux/ethtool.h>
#include <linux/delay.h>
#include "host.h"
#include "decl.h"
#include "defs.h"
#include "dev.h"
#include "wext.h"
#include "cmd.h"
#include "mesh.h"
static void lbs_ethtool_get_drvinfo(struct net_device *dev,
......
drivers/net/wireless/libertas/main.c
View file @ e86dc1ca
......@@ -11,20 +11,14 @@
#include <linux/if_arp.h>
#include <linux/kthread.h>
#include <linux/kfifo.h>
#include <linux/stddef.h>
#include <linux/ieee80211.h>
#include <linux/slab.h>
#include <net/iw_handler.h>
#include <net/cfg80211.h>
#include "host.h"
#include "decl.h"
#include "dev.h"
#include "wext.h"
#include "cfg.h"
#include "debugfs.h"
#include "scan.h"
#include "assoc.h"
#include "cmd.h"
#define DRIVER_RELEASE_VERSION "323.p0"
......@@ -96,72 +90,6 @@ u8 lbs_data_rate_to_fw_index(u32 rate)
}
static int lbs_add_rtap(struct lbs_private *priv);
static void lbs_remove_rtap(struct lbs_private *priv);
/**
* Get function for sysfs attribute rtap
*/
static ssize_t lbs_rtap_get(struct device *dev,
struct device_attribute *attr, char * buf)
{
struct lbs_private *priv = to_net_dev(dev)->ml_priv;
return snprintf(buf, 5, "0x%X\n", priv->monitormode);
}
/**
* Set function for sysfs attribute rtap
*/
static ssize_t lbs_rtap_set(struct device *dev,
struct device_attribute *attr, const char * buf, size_t count)
{
int monitor_mode;
struct lbs_private *priv = to_net_dev(dev)->ml_priv;
sscanf(buf, "%x", &monitor_mode);
if (monitor_mode) {
if (priv->monitormode == monitor_mode)
return strlen(buf);
if (!priv->monitormode) {
if (priv->infra_open || lbs_mesh_open(priv))
return -EBUSY;
if (priv->mode == IW_MODE_INFRA)
lbs_cmd_80211_deauthenticate(priv,
priv->curbssparams.bssid,
WLAN_REASON_DEAUTH_LEAVING);
else if (priv->mode == IW_MODE_ADHOC)
lbs_adhoc_stop(priv);
lbs_add_rtap(priv);
}
priv->monitormode = monitor_mode;
} else {
if (!priv->monitormode)
return strlen(buf);
priv->monitormode = 0;
lbs_remove_rtap(priv);
if (priv->currenttxskb) {
dev_kfree_skb_any(priv->currenttxskb);
priv->currenttxskb = NULL;
}
/* Wake queues, command thread, etc. */
lbs_host_to_card_done(priv);
}
lbs_prepare_and_send_command(priv,
CMD_802_11_MONITOR_MODE, CMD_ACT_SET,
CMD_OPTION_WAITFORRSP, 0, &priv->monitormode);
return strlen(buf);
}
/**
* lbs_rtap attribute to be exported per ethX interface
* through sysfs (/sys/class/net/ethX/lbs_rtap)
*/
static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get, lbs_rtap_set );
/**
* @brief This function opens the ethX interface
*
......@@ -177,13 +105,6 @@ static int lbs_dev_open(struct net_device *dev)
spin_lock_irq(&priv->driver_lock);
if (priv->monitormode) {
ret = -EBUSY;
goto out;
}
priv->infra_open = 1;
if (priv->connect_status == LBS_CONNECTED)
netif_carrier_on(dev);
else
......@@ -191,7 +112,6 @@ static int lbs_dev_open(struct net_device *dev)
if (!priv->tx_pending_len)
netif_wake_queue(dev);
out:
spin_unlock_irq(&priv->driver_lock);
lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
......@@ -211,7 +131,6 @@ static int lbs_eth_stop(struct net_device *dev)
lbs_deb_enter(LBS_DEB_NET);
spin_lock_irq(&priv->driver_lock);
priv->infra_open = 0;
netif_stop_queue(dev);
spin_unlock_irq(&priv->driver_lock);
......@@ -822,37 +741,16 @@ int lbs_exit_auto_deep_sleep(struct lbs_private *priv)
static int lbs_init_adapter(struct lbs_private *priv)
{
size_t bufsize;
int i, ret = 0;
int ret;
lbs_deb_enter(LBS_DEB_MAIN);
/* Allocate buffer to store the BSSID list */
bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
priv->networks = kzalloc(bufsize, GFP_KERNEL);
if (!priv->networks) {
lbs_pr_err("Out of memory allocating beacons\n");
ret = -1;
goto out;
}
/* Initialize scan result lists */
INIT_LIST_HEAD(&priv->network_free_list);
INIT_LIST_HEAD(&priv->network_list);
for (i = 0; i < MAX_NETWORK_COUNT; i++) {
list_add_tail(&priv->networks[i].list,
&priv->network_free_list);
}
memset(priv->current_addr, 0xff, ETH_ALEN);
priv->connect_status = LBS_DISCONNECTED;
priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
priv->mode = IW_MODE_INFRA;
priv->channel = DEFAULT_AD_HOC_CHANNEL;
priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
priv->radio_on = 1;
priv->enablehwauto = 1;
priv->psmode = LBS802_11POWERMODECAM;
priv->psstate = PS_STATE_FULL_POWER;
priv->is_deep_sleep = 0;
......@@ -907,8 +805,6 @@ static void lbs_free_adapter(struct lbs_private *priv)
kfifo_free(&priv->event_fifo);
del_timer(&priv->command_timer);
del_timer(&priv->auto_deepsleep_timer);
kfree(priv->networks);
priv->networks = NULL;
lbs_deb_leave(LBS_DEB_MAIN);
}
......@@ -945,7 +841,7 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
lbs_pr_err("cfg80211 init failed\n");
goto done;
}
/* TODO? */
wdev->iftype = NL80211_IFTYPE_STATION;
priv = wdev_priv(wdev);
priv->wdev = wdev;
......@@ -955,7 +851,6 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
goto err_wdev;
}
//TODO? dev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES);
dev = alloc_netdev(0, "wlan%d", ether_setup);
if (!dev) {
dev_err(dmdev, "no memory for network device instance\n");
......@@ -971,20 +866,10 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
dev->netdev_ops = &lbs_netdev_ops;
dev->watchdog_timeo = 5 * HZ;
dev->ethtool_ops = &lbs_ethtool_ops;
#ifdef WIRELESS_EXT
dev->wireless_handlers = &lbs_handler_def;
#endif
dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
// TODO: kzalloc + iwm_init_default_profile(iwm, iwm->umac_profile); ??
priv->card = card;
priv->infra_open = 0;
priv->rtap_net_dev = NULL;
strcpy(dev->name, "wlan%d");
lbs_deb_thread("Starting main thread...\n");
......@@ -996,8 +881,6 @@ struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
}
priv->work_thread = create_singlethread_workqueue("lbs_worker");
INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker);
priv->wol_criteria = 0xffffffff;
......@@ -1031,12 +914,10 @@ void lbs_remove_card(struct lbs_private *priv)
lbs_deb_enter(LBS_DEB_MAIN);
lbs_remove_mesh(priv);
lbs_remove_rtap(priv);
lbs_scan_deinit(priv);
dev = priv->dev;
cancel_delayed_work_sync(&priv->scan_work);
cancel_delayed_work_sync(&priv->assoc_work);
cancel_work_sync(&priv->mcast_work);
/* worker thread destruction blocks on the in-flight command which
......@@ -1077,7 +958,7 @@ void lbs_remove_card(struct lbs_private *priv)
EXPORT_SYMBOL_GPL(lbs_remove_card);
static int lbs_rtap_supported(struct lbs_private *priv)
int lbs_rtap_supported(struct lbs_private *priv)
{
if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
return 1;
......@@ -1109,16 +990,6 @@ int lbs_start_card(struct lbs_private *priv)
lbs_init_mesh(priv);
/*
* While rtap isn't related to mesh, only mesh-enabled
* firmware implements the rtap functionality via
* CMD_802_11_MONITOR_MODE.
*/
if (lbs_rtap_supported(priv)) {
if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
lbs_pr_err("cannot register lbs_rtap attribute\n");
}
lbs_debugfs_init_one(priv, dev);
lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
......@@ -1150,9 +1021,6 @@ void lbs_stop_card(struct lbs_private *priv)
lbs_debugfs_remove_one(priv);
lbs_deinit_mesh(priv);
if (lbs_rtap_supported(priv))
device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
/* Delete the timeout of the currently processing command */
del_timer_sync(&priv->command_timer);
del_timer_sync(&priv->auto_deepsleep_timer);
......@@ -1239,87 +1107,6 @@ static void __exit lbs_exit_module(void)
lbs_deb_leave(LBS_DEB_MAIN);
}
/*
* rtap interface support fuctions
*/
static int lbs_rtap_open(struct net_device *dev)
{
/* Yes, _stop_ the queue. Because we don't support injection */
lbs_deb_enter(LBS_DEB_MAIN);
netif_carrier_off(dev);
netif_stop_queue(dev);
lbs_deb_leave(LBS_DEB_LEAVE);
return 0;
}
static int lbs_rtap_stop(struct net_device *dev)
{
lbs_deb_enter(LBS_DEB_MAIN);
lbs_deb_leave(LBS_DEB_MAIN);
return 0;
}
static netdev_tx_t lbs_rtap_hard_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
netif_stop_queue(dev);
return NETDEV_TX_BUSY;
}
static void lbs_remove_rtap(struct lbs_private *priv)
{
lbs_deb_enter(LBS_DEB_MAIN);
if (priv->rtap_net_dev == NULL)
goto out;
unregister_netdev(priv->rtap_net_dev);
free_netdev(priv->rtap_net_dev);
priv->rtap_net_dev = NULL;
out:
lbs_deb_leave(LBS_DEB_MAIN);
}
static const struct net_device_ops rtap_netdev_ops = {
.ndo_open = lbs_rtap_open,
.ndo_stop = lbs_rtap_stop,
.ndo_start_xmit = lbs_rtap_hard_start_xmit,
};
static int lbs_add_rtap(struct lbs_private *priv)
{
int ret = 0;
struct net_device *rtap_dev;
lbs_deb_enter(LBS_DEB_MAIN);
if (priv->rtap_net_dev) {
ret = -EPERM;
goto out;
}
rtap_dev = alloc_netdev(0, "rtap%d", ether_setup);
if (rtap_dev == NULL) {
ret = -ENOMEM;
goto out;
}
memcpy(rtap_dev->dev_addr, priv->current_addr, ETH_ALEN);
rtap_dev->type = ARPHRD_IEEE80211_RADIOTAP;
rtap_dev->netdev_ops = &rtap_netdev_ops;
rtap_dev->ml_priv = priv;
SET_NETDEV_DEV(rtap_dev, priv->dev->dev.parent);
ret = register_netdev(rtap_dev);
if (ret) {
free_netdev(rtap_dev);
goto out;
}
priv->rtap_net_dev = rtap_dev;
out:
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
return ret;
}
module_init(lbs_init_module);
module_exit(lbs_exit_module);
......
drivers/net/wireless/libertas/mesh.c
View file @ e86dc1ca
......@@ -5,6 +5,7 @@
#include <linux/if_arp.h>
#include <linux/kthread.h>
#include <linux/kfifo.h>
#include <net/cfg80211.h>
#include "mesh.h"
#include "decl.h"
......@@ -314,7 +315,7 @@ static int lbs_mesh_dev_open(struct net_device *dev)
spin_lock_irq(&priv->driver_lock);
if (priv->monitormode) {
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
ret = -EBUSY;
goto out;
}
......@@ -369,9 +370,6 @@ int lbs_add_mesh(struct lbs_private *priv)
SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
#ifdef WIRELESS_EXT
mesh_dev->wireless_handlers = &mesh_handler_def;
#endif
mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
/* Register virtual mesh interface */
ret = register_netdev(mesh_dev);
......
drivers/net/wireless/libertas/mesh.h
View file @ e86dc1ca
......@@ -70,11 +70,6 @@ void lbs_persist_config_init(struct net_device *net);
void lbs_persist_config_remove(struct net_device *net);
/* WEXT handler */
extern struct iw_handler_def mesh_handler_def;
/* Ethtool statistics */
struct ethtool_stats;
......
drivers/net/wireless/libertas/rx.c
View file @ e86dc1ca
......@@ -4,12 +4,13 @@
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <net/cfg80211.h>
#include "defs.h"
#include "host.h"
#include "radiotap.h"
#include "decl.h"
#include "dev.h"
#include "wext.h"
struct eth803hdr {
u8 dest_addr[6];
......@@ -38,98 +39,6 @@ struct rx80211packethdr {
static int process_rxed_802_11_packet(struct lbs_private *priv,
struct sk_buff *skb);
/**
* @brief This function computes the avgSNR .
*
* @param priv A pointer to struct lbs_private structure
* @return avgSNR
*/
static u8 lbs_getavgsnr(struct lbs_private *priv)
{
u8 i;
u16 temp = 0;
if (priv->numSNRNF == 0)
return 0;
for (i = 0; i < priv->numSNRNF; i++)
temp += priv->rawSNR[i];
return (u8) (temp / priv->numSNRNF);
}
/**
* @brief This function computes the AvgNF
*
* @param priv A pointer to struct lbs_private structure
* @return AvgNF
*/
static u8 lbs_getavgnf(struct lbs_private *priv)
{
u8 i;
u16 temp = 0;
if (priv->numSNRNF == 0)
return 0;
for (i = 0; i < priv->numSNRNF; i++)
temp += priv->rawNF[i];
return (u8) (temp / priv->numSNRNF);
}
/**
* @brief This function save the raw SNR/NF to our internel buffer
*
* @param priv A pointer to struct lbs_private structure
* @param prxpd A pointer to rxpd structure of received packet
* @return n/a
*/
static void lbs_save_rawSNRNF(struct lbs_private *priv, struct rxpd *p_rx_pd)
{
if (priv->numSNRNF < DEFAULT_DATA_AVG_FACTOR)
priv->numSNRNF++;
priv->rawSNR[priv->nextSNRNF] = p_rx_pd->snr;
priv->rawNF[priv->nextSNRNF] = p_rx_pd->nf;
priv->nextSNRNF++;
if (priv->nextSNRNF >= DEFAULT_DATA_AVG_FACTOR)
priv->nextSNRNF = 0;
}
/**
* @brief This function computes the RSSI in received packet.
*
* @param priv A pointer to struct lbs_private structure
* @param prxpd A pointer to rxpd structure of received packet
* @return n/a
*/
static void lbs_compute_rssi(struct lbs_private *priv, struct rxpd *p_rx_pd)
{
lbs_deb_enter(LBS_DEB_RX);
lbs_deb_rx("rxpd: SNR %d, NF %d\n", p_rx_pd->snr, p_rx_pd->nf);
lbs_deb_rx("before computing SNR: SNR-avg = %d, NF-avg = %d\n",
priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE,
priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE);
priv->SNR[TYPE_RXPD][TYPE_NOAVG] = p_rx_pd->snr;
priv->NF[TYPE_RXPD][TYPE_NOAVG] = p_rx_pd->nf;
lbs_save_rawSNRNF(priv, p_rx_pd);
priv->SNR[TYPE_RXPD][TYPE_AVG] = lbs_getavgsnr(priv) * AVG_SCALE;
priv->NF[TYPE_RXPD][TYPE_AVG] = lbs_getavgnf(priv) * AVG_SCALE;
lbs_deb_rx("after computing SNR: SNR-avg = %d, NF-avg = %d\n",
priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE,
priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE);
priv->RSSI[TYPE_RXPD][TYPE_NOAVG] =
CAL_RSSI(priv->SNR[TYPE_RXPD][TYPE_NOAVG],
priv->NF[TYPE_RXPD][TYPE_NOAVG]);
priv->RSSI[TYPE_RXPD][TYPE_AVG] =
CAL_RSSI(priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE,
priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE);
lbs_deb_leave(LBS_DEB_RX);
}
/**
* @brief This function processes received packet and forwards it
* to kernel/upper layer
......@@ -154,7 +63,7 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
skb->ip_summed = CHECKSUM_NONE;
if (priv->monitormode)
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
return process_rxed_802_11_packet(priv, skb);
p_rx_pd = (struct rxpd *) skb->data;
......@@ -225,13 +134,7 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
*/
skb_pull(skb, hdrchop);
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (priv->enablehwauto)
priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);
lbs_compute_rssi(priv, p_rx_pd);
priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);
lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
dev->stats.rx_bytes += skb->len;
......@@ -352,20 +255,18 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
pradiotap_hdr = (void *)skb_push(skb, sizeof(struct rx_radiotap_hdr));
memcpy(pradiotap_hdr, &radiotap_hdr, sizeof(struct rx_radiotap_hdr));
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (priv->enablehwauto)
priv->cur_rate = lbs_fw_index_to_data_rate(prxpd->rx_rate);
lbs_compute_rssi(priv, prxpd);
priv->cur_rate = lbs_fw_index_to_data_rate(prxpd->rx_rate);
lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
dev->stats.rx_bytes += skb->len;
dev->stats.rx_packets++;
skb->protocol = eth_type_trans(skb, priv->rtap_net_dev);
netif_rx(skb);
skb->protocol = eth_type_trans(skb, priv->dev);
if (in_interrupt())
netif_rx(skb);
else
netif_rx_ni(skb);
ret = 0;
......
drivers/net/wireless/libertas/scan.c deleted 100644 → 0
View file @ f90754c1
/**
* Functions implementing wlan scan IOCTL and firmware command APIs
*
* IOCTL handlers as well as command preperation and response routines
* for sending scan commands to the firmware.
*/
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <asm/unaligned.h>
#include <net/lib80211.h>
#include "host.h"
#include "dev.h"
#include "scan.h"
#include "assoc.h"
#include "wext.h"
#include "cmd.h"
//! Approximate amount of data needed to pass a scan result back to iwlist
#define MAX_SCAN_CELL_SIZE (IW_EV_ADDR_LEN \
+ IEEE80211_MAX_SSID_LEN \
+ IW_EV_UINT_LEN \
+ IW_EV_FREQ_LEN \
+ IW_EV_QUAL_LEN \
+ IEEE80211_MAX_SSID_LEN \
+ IW_EV_PARAM_LEN \
+ 40) /* 40 for WPAIE */
//! Memory needed to store a max sized channel List TLV for a firmware scan
#define CHAN_TLV_MAX_SIZE (sizeof(struct mrvl_ie_header) \
+ (MRVDRV_MAX_CHANNELS_PER_SCAN \
* sizeof(struct chanscanparamset)))
//! Memory needed to store a max number/size SSID TLV for a firmware scan
#define SSID_TLV_MAX_SIZE (1 * sizeof(struct mrvl_ie_ssid_param_set))
//! Maximum memory needed for a cmd_ds_802_11_scan with all TLVs at max
#define MAX_SCAN_CFG_ALLOC (sizeof(struct cmd_ds_802_11_scan) \
+ CHAN_TLV_MAX_SIZE + SSID_TLV_MAX_SIZE)
//! The maximum number of channels the firmware can scan per command
#define MRVDRV_MAX_CHANNELS_PER_SCAN 14
/**
* @brief Number of channels to scan per firmware scan command issuance.
*
* Number restricted to prevent hitting the limit on the amount of scan data
* returned in a single firmware scan command.
*/
#define MRVDRV_CHANNELS_PER_SCAN_CMD 4
//! Scan time specified in the channel TLV for each channel for passive scans
#define MRVDRV_PASSIVE_SCAN_CHAN_TIME 100
//! Scan time specified in the channel TLV for each channel for active scans
#define MRVDRV_ACTIVE_SCAN_CHAN_TIME 100
#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
static int lbs_ret_80211_scan(struct lbs_private *priv, unsigned long dummy,
struct cmd_header *resp);
/*********************************************************************/
/* */
/* Misc helper functions */
/* */
/*********************************************************************/
/**
* @brief Unsets the MSB on basic rates
*
* Scan through an array and unset the MSB for basic data rates.
*
* @param rates buffer of data rates
* @param len size of buffer
*/
static void lbs_unset_basic_rate_flags(u8 *rates, size_t len)
{
int i;
for (i = 0; i < len; i++)
rates[i] &= 0x7f;
}
static inline void clear_bss_descriptor(struct bss_descriptor *bss)
{
/* Don't blow away ->list, just BSS data */
memset(bss, 0, offsetof(struct bss_descriptor, list));
}
/**
* @brief Compare two SSIDs
*
* @param ssid1 A pointer to ssid to compare
* @param ssid2 A pointer to ssid to compare
*
* @return 0: ssid is same, otherwise is different
*/
int lbs_ssid_cmp(uint8_t *ssid1, uint8_t ssid1_len, uint8_t *ssid2,
uint8_t ssid2_len)
{
if (ssid1_len != ssid2_len)
return -1;
return memcmp(ssid1, ssid2, ssid1_len);
}
static inline int is_same_network(struct bss_descriptor *src,
struct bss_descriptor *dst)
{
/* A network is only a duplicate if the channel, BSSID, and ESSID
* all match. We treat all <hidden> with the same BSSID and channel
* as one network */
return ((src->ssid_len == dst->ssid_len) &&
(src->channel == dst->channel) &&
!compare_ether_addr(src->bssid, dst->bssid) &&
!memcmp(src->ssid, dst->ssid, src->ssid_len));
}
/*********************************************************************/
/* */
/* Region channel support */
/* */
/*********************************************************************/
#define LBS_TX_PWR_DEFAULT 20 /*100mW */
#define LBS_TX_PWR_US_DEFAULT 20 /*100mW */
#define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */
#define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */
#define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */
/* Format { channel, frequency (MHz), maxtxpower } */
/* band: 'B/G', region: USA FCC/Canada IC */
static struct chan_freq_power channel_freq_power_US_BG[] = {
{1, 2412, LBS_TX_PWR_US_DEFAULT},
{2, 2417, LBS_TX_PWR_US_DEFAULT},
{3, 2422, LBS_TX_PWR_US_DEFAULT},
{4, 2427, LBS_TX_PWR_US_DEFAULT},
{5, 2432, LBS_TX_PWR_US_DEFAULT},
{6, 2437, LBS_TX_PWR_US_DEFAULT},
{7, 2442, LBS_TX_PWR_US_DEFAULT},
{8, 2447, LBS_TX_PWR_US_DEFAULT},
{9, 2452, LBS_TX_PWR_US_DEFAULT},
{10, 2457, LBS_TX_PWR_US_DEFAULT},
{11, 2462, LBS_TX_PWR_US_DEFAULT}
};
/* band: 'B/G', region: Europe ETSI */
static struct chan_freq_power channel_freq_power_EU_BG[] = {
{1, 2412, LBS_TX_PWR_EMEA_DEFAULT},
{2, 2417, LBS_TX_PWR_EMEA_DEFAULT},
{3, 2422, LBS_TX_PWR_EMEA_DEFAULT},
{4, 2427, LBS_TX_PWR_EMEA_DEFAULT},
{5, 2432, LBS_TX_PWR_EMEA_DEFAULT},
{6, 2437, LBS_TX_PWR_EMEA_DEFAULT},
{7, 2442, LBS_TX_PWR_EMEA_DEFAULT},
{8, 2447, LBS_TX_PWR_EMEA_DEFAULT},
{9, 2452, LBS_TX_PWR_EMEA_DEFAULT},
{10, 2457, LBS_TX_PWR_EMEA_DEFAULT},
{11, 2462, LBS_TX_PWR_EMEA_DEFAULT},
{12, 2467, LBS_TX_PWR_EMEA_DEFAULT},
{13, 2472, LBS_TX_PWR_EMEA_DEFAULT}
};
/* band: 'B/G', region: Spain */
static struct chan_freq_power channel_freq_power_SPN_BG[] = {
{10, 2457, LBS_TX_PWR_DEFAULT},
{11, 2462, LBS_TX_PWR_DEFAULT}
};
/* band: 'B/G', region: France */
static struct chan_freq_power channel_freq_power_FR_BG[] = {
{10, 2457, LBS_TX_PWR_FR_DEFAULT},
{11, 2462, LBS_TX_PWR_FR_DEFAULT},
{12, 2467, LBS_TX_PWR_FR_DEFAULT},
{13, 2472, LBS_TX_PWR_FR_DEFAULT}
};
/* band: 'B/G', region: Japan */
static struct chan_freq_power channel_freq_power_JPN_BG[] = {
{1, 2412, LBS_TX_PWR_JP_DEFAULT},
{2, 2417, LBS_TX_PWR_JP_DEFAULT},
{3, 2422, LBS_TX_PWR_JP_DEFAULT},
{4, 2427, LBS_TX_PWR_JP_DEFAULT},
{5, 2432, LBS_TX_PWR_JP_DEFAULT},
{6, 2437, LBS_TX_PWR_JP_DEFAULT},
{7, 2442, LBS_TX_PWR_JP_DEFAULT},
{8, 2447, LBS_TX_PWR_JP_DEFAULT},
{9, 2452, LBS_TX_PWR_JP_DEFAULT},
{10, 2457, LBS_TX_PWR_JP_DEFAULT},
{11, 2462, LBS_TX_PWR_JP_DEFAULT},
{12, 2467, LBS_TX_PWR_JP_DEFAULT},
{13, 2472, LBS_TX_PWR_JP_DEFAULT},
{14, 2484, LBS_TX_PWR_JP_DEFAULT}
};
/**
* the structure for channel, frequency and power
*/
struct region_cfp_table {
u8 region;
struct chan_freq_power *cfp_BG;
int cfp_no_BG;
};
/**
* the structure for the mapping between region and CFP
*/
static struct region_cfp_table region_cfp_table[] = {
{0x10, /*US FCC */
channel_freq_power_US_BG,
ARRAY_SIZE(channel_freq_power_US_BG),
}
,
{0x20, /*CANADA IC */
channel_freq_power_US_BG,
ARRAY_SIZE(channel_freq_power_US_BG),
}
,
{0x30, /*EU*/ channel_freq_power_EU_BG,
ARRAY_SIZE(channel_freq_power_EU_BG),
}
,
{0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
ARRAY_SIZE(channel_freq_power_SPN_BG),
}
,
{0x32, /*FRANCE*/ channel_freq_power_FR_BG,
ARRAY_SIZE(channel_freq_power_FR_BG),
}
,
{0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
ARRAY_SIZE(channel_freq_power_JPN_BG),
}
,
/*Add new region here */
};
/**
* @brief This function finds the CFP in
* region_cfp_table based on region and band parameter.
*
* @param region The region code
* @param band The band
* @param cfp_no A pointer to CFP number
* @return A pointer to CFP
*/
static struct chan_freq_power *lbs_get_region_cfp_table(u8 region, int *cfp_no)
{
int i, end;
lbs_deb_enter(LBS_DEB_MAIN);
end = ARRAY_SIZE(region_cfp_table);
for (i = 0; i < end ; i++) {
lbs_deb_main("region_cfp_table[i].region=%d\n",
region_cfp_table[i].region);
if (region_cfp_table[i].region == region) {
*cfp_no = region_cfp_table[i].cfp_no_BG;
lbs_deb_leave(LBS_DEB_MAIN);
return region_cfp_table[i].cfp_BG;
}
}
lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
return NULL;
}
int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band)
{
int ret = 0;
int i = 0;
struct chan_freq_power *cfp;
int cfp_no;
lbs_deb_enter(LBS_DEB_MAIN);
memset(priv->region_channel, 0, sizeof(priv->region_channel));
cfp = lbs_get_region_cfp_table(region, &cfp_no);
if (cfp != NULL) {
priv->region_channel[i].nrcfp = cfp_no;
priv->region_channel[i].CFP = cfp;
} else {
lbs_deb_main("wrong region code %#x in band B/G\n",
region);
ret = -1;
goto out;
}
priv->region_channel[i].valid = 1;
priv->region_channel[i].region = region;
priv->region_channel[i].band = band;
i++;
out:
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
return ret;
}
/*********************************************************************/
/* */
/* Main scanning support */
/* */
/*********************************************************************/
/**
* @brief Create a channel list for the driver to scan based on region info
*
* Only used from lbs_scan_setup_scan_config()
*
* Use the driver region/band information to construct a comprehensive list
* of channels to scan. This routine is used for any scan that is not
* provided a specific channel list to scan.
*
* @param priv A pointer to struct lbs_private structure
* @param scanchanlist Output parameter: resulting channel list to scan
*
* @return void
*/
static int lbs_scan_create_channel_list(struct lbs_private *priv,
struct chanscanparamset *scanchanlist)
{
struct region_channel *scanregion;
struct chan_freq_power *cfp;
int rgnidx;
int chanidx;
int nextchan;
uint8_t scantype;
chanidx = 0;
/* Set the default scan type to the user specified type, will later
* be changed to passive on a per channel basis if restricted by
* regulatory requirements (11d or 11h)
*/
scantype = CMD_SCAN_TYPE_ACTIVE;
for (rgnidx = 0; rgnidx < ARRAY_SIZE(priv->region_channel); rgnidx++) {
if (!priv->region_channel[rgnidx].valid)
continue;
scanregion = &priv->region_channel[rgnidx];
for (nextchan = 0; nextchan < scanregion->nrcfp; nextchan++, chanidx++) {
struct chanscanparamset *chan = &scanchanlist[chanidx];
cfp = scanregion->CFP + nextchan;
if (scanregion->band == BAND_B || scanregion->band == BAND_G)
chan->radiotype = CMD_SCAN_RADIO_TYPE_BG;
if (scantype == CMD_SCAN_TYPE_PASSIVE) {
chan->maxscantime = cpu_to_le16(MRVDRV_PASSIVE_SCAN_CHAN_TIME);
chan->chanscanmode.passivescan = 1;
} else {
chan->maxscantime = cpu_to_le16(MRVDRV_ACTIVE_SCAN_CHAN_TIME);
chan->chanscanmode.passivescan = 0;
}
chan->channumber = cfp->channel;
}
}
return chanidx;
}
/*
* Add SSID TLV of the form:
*
* TLV-ID SSID 00 00
* length 06 00
* ssid 4d 4e 54 45 53 54
*/
static int lbs_scan_add_ssid_tlv(struct lbs_private *priv, u8 *tlv)
{
struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
ssid_tlv->header.len = cpu_to_le16(priv->scan_ssid_len);
memcpy(ssid_tlv->ssid, priv->scan_ssid, priv->scan_ssid_len);
return sizeof(ssid_tlv->header) + priv->scan_ssid_len;
}
/*
* Add CHANLIST TLV of the form
*
* TLV-ID CHANLIST 01 01
* length 5b 00
* channel 1 00 01 00 00 00 64 00
* radio type 00
* channel 01
* scan type 00
* min scan time 00 00
* max scan time 64 00
* channel 2 00 02 00 00 00 64 00
* channel 3 00 03 00 00 00 64 00
* channel 4 00 04 00 00 00 64 00
* channel 5 00 05 00 00 00 64 00
* channel 6 00 06 00 00 00 64 00
* channel 7 00 07 00 00 00 64 00
* channel 8 00 08 00 00 00 64 00
* channel 9 00 09 00 00 00 64 00
* channel 10 00 0a 00 00 00 64 00
* channel 11 00 0b 00 00 00 64 00
* channel 12 00 0c 00 00 00 64 00
* channel 13 00 0d 00 00 00 64 00
*
*/
static int lbs_scan_add_chanlist_tlv(uint8_t *tlv,
struct chanscanparamset *chan_list,
int chan_count)
{
size_t size = sizeof(struct chanscanparamset) *chan_count;
struct mrvl_ie_chanlist_param_set *chan_tlv = (void *)tlv;
chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
memcpy(chan_tlv->chanscanparam, chan_list, size);
chan_tlv->header.len = cpu_to_le16(size);
return sizeof(chan_tlv->header) + size;
}
/*
* Add RATES TLV of the form
*
* TLV-ID RATES 01 00
* length 0e 00
* rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
*
* The rates are in lbs_bg_rates[], but for the 802.11b
* rates the high bit isn't set.
*/
static int lbs_scan_add_rates_tlv(uint8_t *tlv)
{
int i;
struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
tlv += sizeof(rate_tlv->header);
for (i = 0; i < MAX_RATES; i++) {
*tlv = lbs_bg_rates[i];
if (*tlv == 0)
break;
/* This code makes sure that the 802.11b rates (1 MBit/s, 2
MBit/s, 5.5 MBit/s and 11 MBit/s get's the high bit set.
Note that the values are MBit/s * 2, to mark them as
basic rates so that the firmware likes it better */
if (*tlv == 0x02 || *tlv == 0x04 ||
*tlv == 0x0b || *tlv == 0x16)
*tlv |= 0x80;
tlv++;
}
rate_tlv->header.len = cpu_to_le16(i);
return sizeof(rate_tlv->header) + i;
}
/*
* Generate the CMD_802_11_SCAN command with the proper tlv
* for a bunch of channels.
*/
static int lbs_do_scan(struct lbs_private *priv, uint8_t bsstype,
struct chanscanparamset *chan_list, int chan_count)
{
int ret = -ENOMEM;
struct cmd_ds_802_11_scan *scan_cmd;
uint8_t *tlv; /* pointer into our current, growing TLV storage area */
lbs_deb_enter_args(LBS_DEB_SCAN, "bsstype %d, chanlist[].chan %d, chan_count %d",
bsstype, chan_list ? chan_list[0].channumber : -1,
chan_count);
/* create the fixed part for scan command */
scan_cmd = kzalloc(MAX_SCAN_CFG_ALLOC, GFP_KERNEL);
if (scan_cmd == NULL)
goto out;
tlv = scan_cmd->tlvbuffer;
/* TODO: do we need to scan for a specific BSSID?
memcpy(scan_cmd->bssid, priv->scan_bssid, ETH_ALEN); */
scan_cmd->bsstype = bsstype;
/* add TLVs */
if (priv->scan_ssid_len)
tlv += lbs_scan_add_ssid_tlv(priv, tlv);
if (chan_list && chan_count)
tlv += lbs_scan_add_chanlist_tlv(tlv, chan_list, chan_count);
tlv += lbs_scan_add_rates_tlv(tlv);
/* This is the final data we are about to send */
scan_cmd->hdr.size = cpu_to_le16(tlv - (uint8_t *)scan_cmd);
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
sizeof(*scan_cmd));
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
tlv - scan_cmd->tlvbuffer);
ret = __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
le16_to_cpu(scan_cmd->hdr.size),
lbs_ret_80211_scan, 0);
out:
kfree(scan_cmd);
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
/**
* @brief Internal function used to start a scan based on an input config
*
* Use the input user scan configuration information when provided in
* order to send the appropriate scan commands to firmware to populate or
* update the internal driver scan table
*
* @param priv A pointer to struct lbs_private structure
* @param full_scan Do a full-scan (blocking)
*
* @return 0 or < 0 if error
*/
int lbs_scan_networks(struct lbs_private *priv, int full_scan)
{
int ret = -ENOMEM;
struct chanscanparamset *chan_list;
struct chanscanparamset *curr_chans;
int chan_count;
uint8_t bsstype = CMD_BSS_TYPE_ANY;
int numchannels = MRVDRV_CHANNELS_PER_SCAN_CMD;
union iwreq_data wrqu;
#ifdef CONFIG_LIBERTAS_DEBUG
struct bss_descriptor *iter;
int i = 0;
DECLARE_SSID_BUF(ssid);
#endif
lbs_deb_enter_args(LBS_DEB_SCAN, "full_scan %d", full_scan);
/* Cancel any partial outstanding partial scans if this scan
* is a full scan.
*/
if (full_scan && delayed_work_pending(&priv->scan_work))
cancel_delayed_work(&priv->scan_work);
/* User-specified bsstype or channel list
TODO: this can be implemented if some user-space application
need the feature. Formerly, it was accessible from debugfs,
but then nowhere used.
if (user_cfg) {
if (user_cfg->bsstype)
bsstype = user_cfg->bsstype;
} */
lbs_deb_scan("numchannels %d, bsstype %d\n", numchannels, bsstype);
/* Create list of channels to scan */
chan_list = kzalloc(sizeof(struct chanscanparamset) *
LBS_IOCTL_USER_SCAN_CHAN_MAX, GFP_KERNEL);
if (!chan_list) {
lbs_pr_alert("SCAN: chan_list empty\n");
goto out;
}
/* We want to scan all channels */
chan_count = lbs_scan_create_channel_list(priv, chan_list);
netif_stop_queue(priv->dev);
if (priv->mesh_dev)
netif_stop_queue(priv->mesh_dev);
/* Prepare to continue an interrupted scan */
lbs_deb_scan("chan_count %d, scan_channel %d\n",
chan_count, priv->scan_channel);
curr_chans = chan_list;
/* advance channel list by already-scanned-channels */
if (priv->scan_channel > 0) {
curr_chans += priv->scan_channel;
chan_count -= priv->scan_channel;
}
/* Send scan command(s)
* numchannels contains the number of channels we should maximally scan
* chan_count is the total number of channels to scan
*/
while (chan_count) {
int to_scan = min(numchannels, chan_count);
lbs_deb_scan("scanning %d of %d channels\n",
to_scan, chan_count);
ret = lbs_do_scan(priv, bsstype, curr_chans,
to_scan);
if (ret) {
lbs_pr_err("SCAN_CMD failed\n");
goto out2;
}
curr_chans += to_scan;
chan_count -= to_scan;
/* somehow schedule the next part of the scan */
if (chan_count && !full_scan &&
!priv->surpriseremoved) {
/* -1 marks just that we're currently scanning */
if (priv->scan_channel < 0)
priv->scan_channel = to_scan;
else
priv->scan_channel += to_scan;
cancel_delayed_work(&priv->scan_work);
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(300));
/* skip over GIWSCAN event */
goto out;
}
}
memset(&wrqu, 0, sizeof(union iwreq_data));
wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
#ifdef CONFIG_LIBERTAS_DEBUG
/* Dump the scan table */
mutex_lock(&priv->lock);
lbs_deb_scan("scan table:\n");
list_for_each_entry(iter, &priv->network_list, list)
lbs_deb_scan("%02d: BSSID %pM, RSSI %d, SSID '%s'\n",
i++, iter->bssid, iter->rssi,
print_ssid(ssid, iter->ssid, iter->ssid_len));
mutex_unlock(&priv->lock);
#endif
out2:
priv->scan_channel = 0;
out:
if (priv->connect_status == LBS_CONNECTED && !priv->tx_pending_len)
netif_wake_queue(priv->dev);
if (priv->mesh_dev && lbs_mesh_connected(priv) &&
!priv->tx_pending_len)
netif_wake_queue(priv->mesh_dev);
kfree(chan_list);
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
void lbs_scan_worker(struct work_struct *work)
{
struct lbs_private *priv =
container_of(work, struct lbs_private, scan_work.work);
lbs_deb_enter(LBS_DEB_SCAN);
lbs_scan_networks(priv, 0);
lbs_deb_leave(LBS_DEB_SCAN);
}
/*********************************************************************/
/* */
/* Result interpretation */
/* */
/*********************************************************************/
/**
* @brief Interpret a BSS scan response returned from the firmware
*
* Parse the various fixed fields and IEs passed back for a BSS probe
* response or beacon from the scan command. Record information as needed
* in the scan table struct bss_descriptor for that entry.
*
* @param bss Output parameter: Pointer to the BSS Entry
*
* @return 0 or -1
*/
static int lbs_process_bss(struct bss_descriptor *bss,
uint8_t **pbeaconinfo, int *bytesleft)
{
struct ieee_ie_fh_param_set *fh;
struct ieee_ie_ds_param_set *ds;
struct ieee_ie_cf_param_set *cf;
struct ieee_ie_ibss_param_set *ibss;
DECLARE_SSID_BUF(ssid);
uint8_t *pos, *end, *p;
uint8_t n_ex_rates = 0, got_basic_rates = 0, n_basic_rates = 0;
uint16_t beaconsize = 0;
int ret;
lbs_deb_enter(LBS_DEB_SCAN);
if (*bytesleft >= sizeof(beaconsize)) {
/* Extract & convert beacon size from the command buffer */
beaconsize = get_unaligned_le16(*pbeaconinfo);
*bytesleft -= sizeof(beaconsize);
*pbeaconinfo += sizeof(beaconsize);
}
if (beaconsize == 0 || beaconsize > *bytesleft) {
*pbeaconinfo += *bytesleft;
*bytesleft = 0;
ret = -1;
goto done;
}
/* Initialize the current working beacon pointer for this BSS iteration */
pos = *pbeaconinfo;
end = pos + beaconsize;
/* Advance the return beacon pointer past the current beacon */
*pbeaconinfo += beaconsize;
*bytesleft -= beaconsize;
memcpy(bss->bssid, pos, ETH_ALEN);
lbs_deb_scan("process_bss: BSSID %pM\n", bss->bssid);
pos += ETH_ALEN;
if ((end - pos) < 12) {
lbs_deb_scan("process_bss: Not enough bytes left\n");
ret = -1;
goto done;
}
/*
* next 4 fields are RSSI, time stamp, beacon interval,
* and capability information
*/
/* RSSI is 1 byte long */
bss->rssi = *pos;
lbs_deb_scan("process_bss: RSSI %d\n", *pos);
pos++;
/* time stamp is 8 bytes long */
pos += 8;
/* beacon interval is 2 bytes long */
bss->beaconperiod = get_unaligned_le16(pos);
pos += 2;
/* capability information is 2 bytes long */
bss->capability = get_unaligned_le16(pos);
lbs_deb_scan("process_bss: capabilities 0x%04x\n", bss->capability);
pos += 2;
if (bss->capability & WLAN_CAPABILITY_PRIVACY)
lbs_deb_scan("process_bss: WEP enabled\n");
if (bss->capability & WLAN_CAPABILITY_IBSS)
bss->mode = IW_MODE_ADHOC;
else
bss->mode = IW_MODE_INFRA;
/* rest of the current buffer are IE's */
lbs_deb_scan("process_bss: IE len %zd\n", end - pos);
lbs_deb_hex(LBS_DEB_SCAN, "process_bss: IE info", pos, end - pos);
/* process variable IE */
while (pos <= end - 2) {
if (pos + pos[1] > end) {
lbs_deb_scan("process_bss: error in processing IE, "
"bytes left < IE length\n");
break;
}
switch (pos[0]) {
case WLAN_EID_SSID:
bss->ssid_len = min_t(int, IEEE80211_MAX_SSID_LEN, pos[1]);
memcpy(bss->ssid, pos + 2, bss->ssid_len);
lbs_deb_scan("got SSID IE: '%s', len %u\n",
print_ssid(ssid, bss->ssid, bss->ssid_len),
bss->ssid_len);
break;
case WLAN_EID_SUPP_RATES:
n_basic_rates = min_t(uint8_t, MAX_RATES, pos[1]);
memcpy(bss->rates, pos + 2, n_basic_rates);
got_basic_rates = 1;
lbs_deb_scan("got RATES IE\n");
break;
case WLAN_EID_FH_PARAMS:
fh = (struct ieee_ie_fh_param_set *) pos;
memcpy(&bss->phy.fh, fh, sizeof(*fh));
lbs_deb_scan("got FH IE\n");
break;
case WLAN_EID_DS_PARAMS:
ds = (struct ieee_ie_ds_param_set *) pos;
bss->channel = ds->channel;
memcpy(&bss->phy.ds, ds, sizeof(*ds));
lbs_deb_scan("got DS IE, channel %d\n", bss->channel);
break;
case WLAN_EID_CF_PARAMS:
cf = (struct ieee_ie_cf_param_set *) pos;
memcpy(&bss->ss.cf, cf, sizeof(*cf));
lbs_deb_scan("got CF IE\n");
break;
case WLAN_EID_IBSS_PARAMS:
ibss = (struct ieee_ie_ibss_param_set *) pos;
bss->atimwindow = ibss->atimwindow;
memcpy(&bss->ss.ibss, ibss, sizeof(*ibss));
lbs_deb_scan("got IBSS IE\n");
break;
case WLAN_EID_EXT_SUPP_RATES:
/* only process extended supported rate if data rate is
* already found. Data rate IE should come before
* extended supported rate IE
*/
lbs_deb_scan("got RATESEX IE\n");
if (!got_basic_rates) {
lbs_deb_scan("... but ignoring it\n");
break;
}
n_ex_rates = pos[1];
if (n_basic_rates + n_ex_rates > MAX_RATES)
n_ex_rates = MAX_RATES - n_basic_rates;
p = bss->rates + n_basic_rates;
memcpy(p, pos + 2, n_ex_rates);
break;
case WLAN_EID_GENERIC:
if (pos[1] >= 4 &&
pos[2] == 0x00 && pos[3] == 0x50 &&
pos[4] == 0xf2 && pos[5] == 0x01) {
bss->wpa_ie_len = min(pos[1] + 2, MAX_WPA_IE_LEN);
memcpy(bss->wpa_ie, pos, bss->wpa_ie_len);
lbs_deb_scan("got WPA IE\n");
lbs_deb_hex(LBS_DEB_SCAN, "WPA IE", bss->wpa_ie,
bss->wpa_ie_len);
} else if (pos[1] >= MARVELL_MESH_IE_LENGTH &&
pos[2] == 0x00 && pos[3] == 0x50 &&
pos[4] == 0x43 && pos[5] == 0x04) {
lbs_deb_scan("got mesh IE\n");
bss->mesh = 1;
} else {
lbs_deb_scan("got generic IE: %02x:%02x:%02x:%02x, len %d\n",
pos[2], pos[3],
pos[4], pos[5],
pos[1]);
}
break;
case WLAN_EID_RSN:
lbs_deb_scan("got RSN IE\n");
bss->rsn_ie_len = min(pos[1] + 2, MAX_WPA_IE_LEN);
memcpy(bss->rsn_ie, pos, bss->rsn_ie_len);
lbs_deb_hex(LBS_DEB_SCAN, "process_bss: RSN_IE",
bss->rsn_ie, bss->rsn_ie_len);
break;
default:
lbs_deb_scan("got IE 0x%04x, len %d\n",
pos[0], pos[1]);
break;
}
pos += pos[1] + 2;
}
/* Timestamp */
bss->last_scanned = jiffies;
lbs_unset_basic_rate_flags(bss->rates, sizeof(bss->rates));
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
/**
* @brief Send a scan command for all available channels filtered on a spec
*
* Used in association code and from debugfs
*
* @param priv A pointer to struct lbs_private structure
* @param ssid A pointer to the SSID to scan for
* @param ssid_len Length of the SSID
*
* @return 0-success, otherwise fail
*/
int lbs_send_specific_ssid_scan(struct lbs_private *priv, uint8_t *ssid,
uint8_t ssid_len)
{
DECLARE_SSID_BUF(ssid_buf);
int ret = 0;
lbs_deb_enter_args(LBS_DEB_SCAN, "SSID '%s'\n",
print_ssid(ssid_buf, ssid, ssid_len));
if (!ssid_len)
goto out;
memcpy(priv->scan_ssid, ssid, ssid_len);
priv->scan_ssid_len = ssid_len;
lbs_scan_networks(priv, 1);
if (priv->surpriseremoved) {
ret = -1;
goto out;
}
out:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
/*********************************************************************/
/* */
/* Support for Wireless Extensions */
/* */
/*********************************************************************/
#define MAX_CUSTOM_LEN 64
static inline char *lbs_translate_scan(struct lbs_private *priv,
struct iw_request_info *info,
char *start, char *stop,
struct bss_descriptor *bss)
{
struct chan_freq_power *cfp;
char *current_val; /* For rates */
struct iw_event iwe; /* Temporary buffer */
int j;
#define PERFECT_RSSI ((uint8_t)50)
#define WORST_RSSI ((uint8_t)0)
#define RSSI_DIFF ((uint8_t)(PERFECT_RSSI - WORST_RSSI))
uint8_t rssi;
lbs_deb_enter(LBS_DEB_SCAN);
cfp = lbs_find_cfp_by_band_and_channel(priv, 0, bss->channel);
if (!cfp) {
lbs_deb_scan("Invalid channel number %d\n", bss->channel);
start = NULL;
goto out;
}
/* First entry *MUST* be the BSSID */
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(iwe.u.ap_addr.sa_data, &bss->bssid, ETH_ALEN);
start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN);
/* SSID */
iwe.cmd = SIOCGIWESSID;
iwe.u.data.flags = 1;
iwe.u.data.length = min((uint32_t) bss->ssid_len, (uint32_t) IEEE80211_MAX_SSID_LEN);
start = iwe_stream_add_point(info, start, stop, &iwe, bss->ssid);
/* Mode */
iwe.cmd = SIOCGIWMODE;
iwe.u.mode = bss->mode;
start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_UINT_LEN);
/* Frequency */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = (long)cfp->freq * 100000;
iwe.u.freq.e = 1;
start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN);
/* Add quality statistics */
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = IW_QUAL_ALL_UPDATED;
iwe.u.qual.level = SCAN_RSSI(bss->rssi);
rssi = iwe.u.qual.level - MRVDRV_NF_DEFAULT_SCAN_VALUE;
iwe.u.qual.qual =
(100 * RSSI_DIFF * RSSI_DIFF - (PERFECT_RSSI - rssi) *
(15 * (RSSI_DIFF) + 62 * (PERFECT_RSSI - rssi))) /
(RSSI_DIFF * RSSI_DIFF);
if (iwe.u.qual.qual > 100)
iwe.u.qual.qual = 100;
if (priv->NF[TYPE_BEACON][TYPE_NOAVG] == 0) {
iwe.u.qual.noise = MRVDRV_NF_DEFAULT_SCAN_VALUE;
} else {
iwe.u.qual.noise = CAL_NF(priv->NF[TYPE_BEACON][TYPE_NOAVG]);
}
/* Locally created ad-hoc BSSs won't have beacons if this is the
* only station in the adhoc network; so get signal strength
* from receive statistics.
*/
if ((priv->mode == IW_MODE_ADHOC) && priv->adhoccreate
&& !lbs_ssid_cmp(priv->curbssparams.ssid,
priv->curbssparams.ssid_len,
bss->ssid, bss->ssid_len)) {
int snr, nf;
snr = priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE;
nf = priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE;
iwe.u.qual.level = CAL_RSSI(snr, nf);
}
start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN);
/* Add encryption capability */
iwe.cmd = SIOCGIWENCODE;
if (bss->capability & WLAN_CAPABILITY_PRIVACY) {
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
} else {
iwe.u.data.flags = IW_ENCODE_DISABLED;
}
iwe.u.data.length = 0;
start = iwe_stream_add_point(info, start, stop, &iwe, bss->ssid);
current_val = start + iwe_stream_lcp_len(info);
iwe.cmd = SIOCGIWRATE;
iwe.u.bitrate.fixed = 0;
iwe.u.bitrate.disabled = 0;
iwe.u.bitrate.value = 0;
for (j = 0; j < ARRAY_SIZE(bss->rates) && bss->rates[j]; j++) {
/* Bit rate given in 500 kb/s units */
iwe.u.bitrate.value = bss->rates[j] * 500000;
current_val = iwe_stream_add_value(info, start, current_val,
stop, &iwe, IW_EV_PARAM_LEN);
}
if ((bss->mode == IW_MODE_ADHOC) && priv->adhoccreate
&& !lbs_ssid_cmp(priv->curbssparams.ssid,
priv->curbssparams.ssid_len,
bss->ssid, bss->ssid_len)) {
iwe.u.bitrate.value = 22 * 500000;
current_val = iwe_stream_add_value(info, start, current_val,
stop, &iwe, IW_EV_PARAM_LEN);
}
/* Check if we added any event */
if ((current_val - start) > iwe_stream_lcp_len(info))
start = current_val;
memset(&iwe, 0, sizeof(iwe));
if (bss->wpa_ie_len) {
char buf[MAX_WPA_IE_LEN];
memcpy(buf, bss->wpa_ie, bss->wpa_ie_len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = bss->wpa_ie_len;
start = iwe_stream_add_point(info, start, stop, &iwe, buf);
}
memset(&iwe, 0, sizeof(iwe));
if (bss->rsn_ie_len) {
char buf[MAX_WPA_IE_LEN];
memcpy(buf, bss->rsn_ie, bss->rsn_ie_len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = bss->rsn_ie_len;
start = iwe_stream_add_point(info, start, stop, &iwe, buf);
}
if (bss->mesh) {
char custom[MAX_CUSTOM_LEN];
char *p = custom;
iwe.cmd = IWEVCUSTOM;
p += snprintf(p, MAX_CUSTOM_LEN, "mesh-type: olpc");
iwe.u.data.length = p - custom;
if (iwe.u.data.length)
start = iwe_stream_add_point(info, start, stop,
&iwe, custom);
}
out:
lbs_deb_leave_args(LBS_DEB_SCAN, "start %p", start);
return start;
}
/**
* @brief Handle Scan Network ioctl
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
*
* @return 0 --success, otherwise fail
*/
int lbs_set_scan(struct net_device *dev, struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
DECLARE_SSID_BUF(ssid);
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
if (!priv->radio_on) {
ret = -EINVAL;
goto out;
}
if (!netif_running(dev)) {
ret = -ENETDOWN;
goto out;
}
/* mac80211 does this:
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->type != IEEE80211_IF_TYPE_xxx) {
ret = -EOPNOTSUPP;
goto out;
}
*/
if (wrqu->data.length == sizeof(struct iw_scan_req) &&
wrqu->data.flags & IW_SCAN_THIS_ESSID) {
struct iw_scan_req *req = (struct iw_scan_req *)extra;
priv->scan_ssid_len = req->essid_len;
memcpy(priv->scan_ssid, req->essid, priv->scan_ssid_len);
lbs_deb_wext("set_scan, essid '%s'\n",
print_ssid(ssid, priv->scan_ssid, priv->scan_ssid_len));
} else {
priv->scan_ssid_len = 0;
}
if (!delayed_work_pending(&priv->scan_work))
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(50));
/* set marker that currently a scan is taking place */
priv->scan_channel = -1;
if (priv->surpriseremoved)
ret = -EIO;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Handle Retrieve scan table ioctl
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param dwrq A pointer to iw_point structure
* @param extra A pointer to extra data buf
*
* @return 0 --success, otherwise fail
*/
int lbs_get_scan(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
#define SCAN_ITEM_SIZE 128
struct lbs_private *priv = dev->ml_priv;
int err = 0;
char *ev = extra;
char *stop = ev + dwrq->length;
struct bss_descriptor *iter_bss;
struct bss_descriptor *safe;
lbs_deb_enter(LBS_DEB_WEXT);
/* iwlist should wait until the current scan is finished */
if (priv->scan_channel)
return -EAGAIN;
/* Update RSSI if current BSS is a locally created ad-hoc BSS */
if ((priv->mode == IW_MODE_ADHOC) && priv->adhoccreate) {
err = lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
CMD_OPTION_WAITFORRSP, 0, NULL);
if (err)
goto out;
}
mutex_lock(&priv->lock);
list_for_each_entry_safe (iter_bss, safe, &priv->network_list, list) {
char *next_ev;
unsigned long stale_time;
if (stop - ev < SCAN_ITEM_SIZE) {
err = -E2BIG;
break;
}
/* For mesh device, list only mesh networks */
if (dev == priv->mesh_dev && !iter_bss->mesh)
continue;
/* Prune old an old scan result */
stale_time = iter_bss->last_scanned + DEFAULT_MAX_SCAN_AGE;
if (time_after(jiffies, stale_time)) {
list_move_tail(&iter_bss->list, &priv->network_free_list);
clear_bss_descriptor(iter_bss);
continue;
}
/* Translate to WE format this entry */
next_ev = lbs_translate_scan(priv, info, ev, stop, iter_bss);
if (next_ev == NULL)
continue;
ev = next_ev;
}
mutex_unlock(&priv->lock);
dwrq->length = (ev - extra);
dwrq->flags = 0;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", err);
return err;
}
/*********************************************************************/
/* */
/* Command execution */
/* */
/*********************************************************************/
/**
* @brief This function handles the command response of scan
*
* Called from handle_cmd_response() in cmdrespc.
*
* The response buffer for the scan command has the following
* memory layout:
*
* .-----------------------------------------------------------.
* | header (4 * sizeof(u16)): Standard command response hdr |
* .-----------------------------------------------------------.
* | bufsize (u16) : sizeof the BSS Description data |
* .-----------------------------------------------------------.
* | NumOfSet (u8) : Number of BSS Descs returned |
* .-----------------------------------------------------------.
* | BSSDescription data (variable, size given in bufsize) |
* .-----------------------------------------------------------.
* | TLV data (variable, size calculated using header->size, |
* | bufsize and sizeof the fixed fields above) |
* .-----------------------------------------------------------.
*
* @param priv A pointer to struct lbs_private structure
* @param resp A pointer to cmd_ds_command
*
* @return 0 or -1
*/
static int lbs_ret_80211_scan(struct lbs_private *priv, unsigned long dummy,
struct cmd_header *resp)
{
struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
struct bss_descriptor *iter_bss;
struct bss_descriptor *safe;
uint8_t *bssinfo;
uint16_t scanrespsize;
int bytesleft;
int idx;
int tlvbufsize;
int ret;
lbs_deb_enter(LBS_DEB_SCAN);
/* Prune old entries from scan table */
list_for_each_entry_safe (iter_bss, safe, &priv->network_list, list) {
unsigned long stale_time = iter_bss->last_scanned + DEFAULT_MAX_SCAN_AGE;
if (time_before(jiffies, stale_time))
continue;
list_move_tail (&iter_bss->list, &priv->network_free_list);
clear_bss_descriptor(iter_bss);
}
if (scanresp->nr_sets > MAX_NETWORK_COUNT) {
lbs_deb_scan("SCAN_RESP: too many scan results (%d, max %d)\n",
scanresp->nr_sets, MAX_NETWORK_COUNT);
ret = -1;
goto done;
}
bytesleft = get_unaligned_le16(&scanresp->bssdescriptsize);
lbs_deb_scan("SCAN_RESP: bssdescriptsize %d\n", bytesleft);
scanrespsize = le16_to_cpu(resp->size);
lbs_deb_scan("SCAN_RESP: scan results %d\n", scanresp->nr_sets);
bssinfo = scanresp->bssdesc_and_tlvbuffer;
/* The size of the TLV buffer is equal to the entire command response
* size (scanrespsize) minus the fixed fields (sizeof()'s), the
* BSS Descriptions (bssdescriptsize as bytesLef) and the command
* response header (sizeof(struct cmd_header))
*/
tlvbufsize = scanrespsize - (bytesleft + sizeof(scanresp->bssdescriptsize)
+ sizeof(scanresp->nr_sets)
+ sizeof(struct cmd_header));
/*
* Process each scan response returned (scanresp->nr_sets). Save
* the information in the newbssentry and then insert into the
* driver scan table either as an update to an existing entry
* or as an addition at the end of the table
*/
for (idx = 0; idx < scanresp->nr_sets && bytesleft; idx++) {
struct bss_descriptor new;
struct bss_descriptor *found = NULL;
struct bss_descriptor *oldest = NULL;
/* Process the data fields and IEs returned for this BSS */
memset(&new, 0, sizeof (struct bss_descriptor));
if (lbs_process_bss(&new, &bssinfo, &bytesleft) != 0) {
/* error parsing the scan response, skipped */
lbs_deb_scan("SCAN_RESP: process_bss returned ERROR\n");
continue;
}
/* Try to find this bss in the scan table */
list_for_each_entry (iter_bss, &priv->network_list, list) {
if (is_same_network(iter_bss, &new)) {
found = iter_bss;
break;
}
if ((oldest == NULL) ||
(iter_bss->last_scanned < oldest->last_scanned))
oldest = iter_bss;
}
if (found) {
/* found, clear it */
clear_bss_descriptor(found);
} else if (!list_empty(&priv->network_free_list)) {
/* Pull one from the free list */
found = list_entry(priv->network_free_list.next,
struct bss_descriptor, list);
list_move_tail(&found->list, &priv->network_list);
} else if (oldest) {
/* If there are no more slots, expire the oldest */
found = oldest;
clear_bss_descriptor(found);
list_move_tail(&found->list, &priv->network_list);
} else {
continue;
}
lbs_deb_scan("SCAN_RESP: BSSID %pM\n", new.bssid);
/* Copy the locally created newbssentry to the scan table */
memcpy(found, &new, offsetof(struct bss_descriptor, list));
}
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
drivers/net/wireless/libertas/scan.h deleted 100644 → 0
View file @ f90754c1
/**
* Interface for the wlan network scan routines
*
* Driver interface functions and type declarations for the scan module
* implemented in scan.c.
*/
#ifndef _LBS_SCAN_H
#define _LBS_SCAN_H
#include <net/iw_handler.h>
struct lbs_private;
#define MAX_NETWORK_COUNT 128
/** Chan-freq-TxPower mapping table*/
struct chan_freq_power {
/** channel Number */
u16 channel;
/** frequency of this channel */
u32 freq;
/** Max allowed Tx power level */
u16 maxtxpower;
/** TRUE:channel unsupported; FLASE:supported*/
u8 unsupported;
};
/** region-band mapping table*/
struct region_channel {
/** TRUE if this entry is valid */
u8 valid;
/** region code for US, Japan ... */
u8 region;
/** band B/G/A, used for BAND_CONFIG cmd */
u8 band;
/** Actual No. of elements in the array below */
u8 nrcfp;
/** chan-freq-txpower mapping table*/
struct chan_freq_power *CFP;
};
/**
* @brief Maximum number of channels that can be sent in a setuserscan ioctl
*/
#define LBS_IOCTL_USER_SCAN_CHAN_MAX 50
int lbs_ssid_cmp(u8 *ssid1, u8 ssid1_len, u8 *ssid2, u8 ssid2_len);
int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band);
int lbs_send_specific_ssid_scan(struct lbs_private *priv, u8 *ssid,
u8 ssid_len);
int lbs_get_scan(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra);
int lbs_set_scan(struct net_device *dev, struct iw_request_info *info,
union iwreq_data *wrqu, char *extra);
int lbs_scan_networks(struct lbs_private *priv, int full_scan);
void lbs_scan_worker(struct work_struct *work);
#endif
drivers/net/wireless/libertas/tx.c
View file @ e86dc1ca
......@@ -4,13 +4,13 @@
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/sched.h>
#include <net/cfg80211.h>
#include "host.h"
#include "radiotap.h"
#include "decl.h"
#include "defs.h"
#include "dev.h"
#include "wext.h"
/**
* @brief This function converts Tx/Rx rates from IEEE80211_RADIOTAP_RATE
......@@ -111,7 +111,7 @@ netdev_tx_t lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
p802x_hdr = skb->data;
pkt_len = skb->len;
if (dev == priv->rtap_net_dev) {
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
struct tx_radiotap_hdr *rtap_hdr = (void *)skb->data;
/* set txpd fields from the radiotap header */
......@@ -147,7 +147,7 @@ netdev_tx_t lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
if (priv->monitormode) {
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
/* Keep the skb to echo it back once Tx feedback is
received from FW */
skb_orphan(skb);
......@@ -158,6 +158,7 @@ netdev_tx_t lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
free:
dev_kfree_skb_any(skb);
}
unlock:
spin_unlock_irqrestore(&priv->driver_lock, flags);
wake_up(&priv->waitq);
......@@ -179,7 +180,8 @@ void lbs_send_tx_feedback(struct lbs_private *priv, u32 try_count)
{
struct tx_radiotap_hdr *radiotap_hdr;
if (!priv->monitormode || priv->currenttxskb == NULL)
if (!priv->wdev->iftype == NL80211_IFTYPE_MONITOR ||
priv->currenttxskb == NULL)
return;
radiotap_hdr = (struct tx_radiotap_hdr *)priv->currenttxskb->data;
......@@ -188,7 +190,7 @@ void lbs_send_tx_feedback(struct lbs_private *priv, u32 try_count)
(1 + priv->txretrycount - try_count) : 0;
priv->currenttxskb->protocol = eth_type_trans(priv->currenttxskb,
priv->rtap_net_dev);
priv->dev);
netif_rx(priv->currenttxskb);
priv->currenttxskb = NULL;
......
drivers/net/wireless/libertas/wext.c deleted 100644 → 0
View file @ f90754c1
/**
* This file contains ioctl functions
*/
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/if.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/bitops.h>
#include <net/lib80211.h>
#include <net/iw_handler.h>
#include "host.h"
#include "radiotap.h"
#include "decl.h"
#include "defs.h"
#include "dev.h"
#include "wext.h"
#include "scan.h"
#include "assoc.h"
#include "cmd.h"
static inline void lbs_postpone_association_work(struct lbs_private *priv)
{
if (priv->surpriseremoved)
return;
cancel_delayed_work(&priv->assoc_work);
queue_delayed_work(priv->work_thread, &priv->assoc_work, HZ / 2);
}
static inline void lbs_do_association_work(struct lbs_private *priv)
{
if (priv->surpriseremoved)
return;
cancel_delayed_work(&priv->assoc_work);
queue_delayed_work(priv->work_thread, &priv->assoc_work, 0);
}
static inline void lbs_cancel_association_work(struct lbs_private *priv)
{
cancel_delayed_work(&priv->assoc_work);
kfree(priv->pending_assoc_req);
priv->pending_assoc_req = NULL;
}
void lbs_send_disconnect_notification(struct lbs_private *priv)
{
union iwreq_data wrqu;
memset(wrqu.ap_addr.sa_data, 0x00, ETH_ALEN);
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
}
static void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
{
union iwreq_data iwrq;
u8 buf[50];
lbs_deb_enter(LBS_DEB_WEXT);
memset(&iwrq, 0, sizeof(union iwreq_data));
memset(buf, 0, sizeof(buf));
snprintf(buf, sizeof(buf) - 1, "%s", str);
iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
/* Send Event to upper layer */
lbs_deb_wext("event indication string %s\n", (char *)buf);
lbs_deb_wext("event indication length %d\n", iwrq.data.length);
lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
lbs_deb_leave(LBS_DEB_WEXT);
}
/**
* @brief This function handles MIC failure event.
*
* @param priv A pointer to struct lbs_private structure
* @para event the event id
* @return n/a
*/
void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
{
char buf[50];
lbs_deb_enter(LBS_DEB_CMD);
memset(buf, 0, sizeof(buf));
sprintf(buf, "%s", "MLME-MICHAELMICFAILURE.indication ");
if (event == MACREG_INT_CODE_MIC_ERR_UNICAST)
strcat(buf, "unicast ");
else
strcat(buf, "multicast ");
lbs_send_iwevcustom_event(priv, buf);
lbs_deb_leave(LBS_DEB_CMD);
}
/**
* @brief Find the channel frequency power info with specific channel
*
* @param priv A pointer to struct lbs_private structure
* @param band it can be BAND_A, BAND_G or BAND_B
* @param channel the channel for looking
* @return A pointer to struct chan_freq_power structure or NULL if not find.
*/
struct chan_freq_power *lbs_find_cfp_by_band_and_channel(
struct lbs_private *priv,
u8 band,
u16 channel)
{
struct chan_freq_power *cfp = NULL;
struct region_channel *rc;
int i, j;
for (j = 0; !cfp && (j < ARRAY_SIZE(priv->region_channel)); j++) {
rc = &priv->region_channel[j];
if (!rc->valid || !rc->CFP)
continue;
if (rc->band != band)
continue;
for (i = 0; i < rc->nrcfp; i++) {
if (rc->CFP[i].channel == channel) {
cfp = &rc->CFP[i];
break;
}
}
}
if (!cfp && channel)
lbs_deb_wext("lbs_find_cfp_by_band_and_channel: can't find "
"cfp by band %d / channel %d\n", band, channel);
return cfp;
}
/**
* @brief Find the channel frequency power info with specific frequency
*
* @param priv A pointer to struct lbs_private structure
* @param band it can be BAND_A, BAND_G or BAND_B
* @param freq the frequency for looking
* @return A pointer to struct chan_freq_power structure or NULL if not find.
*/
static struct chan_freq_power *find_cfp_by_band_and_freq(
struct lbs_private *priv,
u8 band,
u32 freq)
{
struct chan_freq_power *cfp = NULL;
struct region_channel *rc;
int i, j;
for (j = 0; !cfp && (j < ARRAY_SIZE(priv->region_channel)); j++) {
rc = &priv->region_channel[j];
if (!rc->valid || !rc->CFP)
continue;
if (rc->band != band)
continue;
for (i = 0; i < rc->nrcfp; i++) {
if (rc->CFP[i].freq == freq) {
cfp = &rc->CFP[i];
break;
}
}
}
if (!cfp && freq)
lbs_deb_wext("find_cfp_by_band_and_freql: can't find cfp by "
"band %d / freq %d\n", band, freq);
return cfp;
}
/**
* @brief Copy active data rates based on adapter mode and status
*
* @param priv A pointer to struct lbs_private structure
* @param rate The buf to return the active rates
*/
static void copy_active_data_rates(struct lbs_private *priv, u8 *rates)
{
lbs_deb_enter(LBS_DEB_WEXT);
if ((priv->connect_status != LBS_CONNECTED) &&
!lbs_mesh_connected(priv))
memcpy(rates, lbs_bg_rates, MAX_RATES);
else
memcpy(rates, priv->curbssparams.rates, MAX_RATES);
lbs_deb_leave(LBS_DEB_WEXT);
}
static int lbs_get_name(struct net_device *dev, struct iw_request_info *info,
char *cwrq, char *extra)
{
lbs_deb_enter(LBS_DEB_WEXT);
/* We could add support for 802.11n here as needed. Jean II */
snprintf(cwrq, IFNAMSIZ, "IEEE 802.11b/g");
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_freq(struct net_device *dev, struct iw_request_info *info,
struct iw_freq *fwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
struct chan_freq_power *cfp;
lbs_deb_enter(LBS_DEB_WEXT);
cfp = lbs_find_cfp_by_band_and_channel(priv, 0,
priv->channel);
if (!cfp) {
if (priv->channel)
lbs_deb_wext("invalid channel %d\n",
priv->channel);
return -EINVAL;
}
fwrq->m = (long)cfp->freq * 100000;
fwrq->e = 1;
lbs_deb_wext("freq %u\n", fwrq->m);
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_wap(struct net_device *dev, struct iw_request_info *info,
struct sockaddr *awrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (priv->connect_status == LBS_CONNECTED) {
memcpy(awrq->sa_data, priv->curbssparams.bssid, ETH_ALEN);
} else {
memset(awrq->sa_data, 0, ETH_ALEN);
}
awrq->sa_family = ARPHRD_ETHER;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_nick(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
/*
* Check the size of the string
*/
if (dwrq->length > 16) {
return -E2BIG;
}
mutex_lock(&priv->lock);
memset(priv->nodename, 0, sizeof(priv->nodename));
memcpy(priv->nodename, extra, dwrq->length);
mutex_unlock(&priv->lock);
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_nick(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
dwrq->length = strlen(priv->nodename);
memcpy(extra, priv->nodename, dwrq->length);
extra[dwrq->length] = '\0';
dwrq->flags = 1; /* active */
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
#ifdef CONFIG_LIBERTAS_MESH
static int mesh_get_nick(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
/* Use nickname to indicate that mesh is on */
if (lbs_mesh_connected(priv)) {
strncpy(extra, "Mesh", 12);
extra[12] = '\0';
dwrq->length = strlen(extra);
}
else {
extra[0] = '\0';
dwrq->length = 0;
}
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
#endif
static int lbs_set_rts(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->ml_priv;
u32 val = vwrq->value;
lbs_deb_enter(LBS_DEB_WEXT);
if (vwrq->disabled)
val = MRVDRV_RTS_MAX_VALUE;
if (val > MRVDRV_RTS_MAX_VALUE) /* min rts value is 0 */
return -EINVAL;
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_RTS_THRESHOLD, (u16) val);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_rts(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
u16 val = 0;
lbs_deb_enter(LBS_DEB_WEXT);
ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_RTS_THRESHOLD, &val);
if (ret)
goto out;
vwrq->value = val;
vwrq->disabled = val > MRVDRV_RTS_MAX_VALUE; /* min rts value is 0 */
vwrq->fixed = 1;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_frag(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
u32 val = vwrq->value;
lbs_deb_enter(LBS_DEB_WEXT);
if (vwrq->disabled)
val = MRVDRV_FRAG_MAX_VALUE;
if (val < MRVDRV_FRAG_MIN_VALUE || val > MRVDRV_FRAG_MAX_VALUE)
return -EINVAL;
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_FRAG_THRESHOLD, (u16) val);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_frag(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
u16 val = 0;
lbs_deb_enter(LBS_DEB_WEXT);
ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_FRAG_THRESHOLD, &val);
if (ret)
goto out;
vwrq->value = val;
vwrq->disabled = ((val < MRVDRV_FRAG_MIN_VALUE)
|| (val > MRVDRV_FRAG_MAX_VALUE));
vwrq->fixed = 1;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_mode(struct net_device *dev,
struct iw_request_info *info, u32 * uwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
*uwrq = priv->mode;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
#ifdef CONFIG_LIBERTAS_MESH
static int mesh_wlan_get_mode(struct net_device *dev,
struct iw_request_info *info, u32 * uwrq,
char *extra)
{
lbs_deb_enter(LBS_DEB_WEXT);
*uwrq = IW_MODE_REPEAT;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
#endif
static int lbs_get_txpow(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
s16 curlevel = 0;
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
if (!priv->radio_on) {
lbs_deb_wext("tx power off\n");
vwrq->value = 0;
vwrq->disabled = 1;
goto out;
}
ret = lbs_get_tx_power(priv, &curlevel, NULL, NULL);
if (ret)
goto out;
lbs_deb_wext("tx power level %d dbm\n", curlevel);
priv->txpower_cur = curlevel;
vwrq->value = curlevel;
vwrq->fixed = 1;
vwrq->disabled = 0;
vwrq->flags = IW_TXPOW_DBM;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_retry(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
u16 slimit = 0, llimit = 0;
lbs_deb_enter(LBS_DEB_WEXT);
if ((vwrq->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
return -EOPNOTSUPP;
/* The MAC has a 4-bit Total_Tx_Count register
Total_Tx_Count = 1 + Tx_Retry_Count */
#define TX_RETRY_MIN 0
#define TX_RETRY_MAX 14
if (vwrq->value < TX_RETRY_MIN || vwrq->value > TX_RETRY_MAX)
return -EINVAL;
/* Add 1 to convert retry count to try count */
if (vwrq->flags & IW_RETRY_SHORT)
slimit = (u16) (vwrq->value + 1);
else if (vwrq->flags & IW_RETRY_LONG)
llimit = (u16) (vwrq->value + 1);
else
slimit = llimit = (u16) (vwrq->value + 1); /* set both */
if (llimit) {
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_LONG_RETRY_LIMIT,
llimit);
if (ret)
goto out;
}
if (slimit) {
/* txretrycount follows the short retry limit */
priv->txretrycount = slimit;
ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_SHORT_RETRY_LIMIT,
slimit);
if (ret)
goto out;
}
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_retry(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
u16 val = 0;
lbs_deb_enter(LBS_DEB_WEXT);
vwrq->disabled = 0;
if (vwrq->flags & IW_RETRY_LONG) {
ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_LONG_RETRY_LIMIT, &val);
if (ret)
goto out;
/* Subtract 1 to convert try count to retry count */
vwrq->value = val - 1;
vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
} else {
ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_SHORT_RETRY_LIMIT, &val);
if (ret)
goto out;
/* txretry count follows the short retry limit */
priv->txretrycount = val;
/* Subtract 1 to convert try count to retry count */
vwrq->value = val - 1;
vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_SHORT;
}
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static inline void sort_channels(struct iw_freq *freq, int num)
{
int i, j;
struct iw_freq temp;
for (i = 0; i < num; i++)
for (j = i + 1; j < num; j++)
if (freq[i].i > freq[j].i) {
temp.i = freq[i].i;
temp.m = freq[i].m;
freq[i].i = freq[j].i;
freq[i].m = freq[j].m;
freq[j].i = temp.i;
freq[j].m = temp.m;
}
}
/* data rate listing
MULTI_BANDS:
abg a b b/g
Infra G(12) A(8) B(4) G(12)
Adhoc A+B(12) A(8) B(4) B(4)
non-MULTI_BANDS:
b b/g
Infra B(4) G(12)
Adhoc B(4) B(4)
*/
/**
* @brief Get Range Info
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_get_range(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
int i, j;
struct lbs_private *priv = dev->ml_priv;
struct iw_range *range = (struct iw_range *)extra;
struct chan_freq_power *cfp;
u8 rates[MAX_RATES + 1];
lbs_deb_enter(LBS_DEB_WEXT);
dwrq->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->min_nwid = 0;
range->max_nwid = 0;
memset(rates, 0, sizeof(rates));
copy_active_data_rates(priv, rates);
range->num_bitrates = strnlen(rates, IW_MAX_BITRATES);
for (i = 0; i < range->num_bitrates; i++)
range->bitrate[i] = rates[i] * 500000;
range->num_bitrates = i;
lbs_deb_wext("IW_MAX_BITRATES %d, num_bitrates %d\n", IW_MAX_BITRATES,
range->num_bitrates);
range->num_frequency = 0;
range->scan_capa = IW_SCAN_CAPA_ESSID;
for (j = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
&& (j < ARRAY_SIZE(priv->region_channel)); j++) {
cfp = priv->region_channel[j].CFP;
for (i = 0; (range->num_frequency < IW_MAX_FREQUENCIES)
&& priv->region_channel[j].valid
&& cfp
&& (i < priv->region_channel[j].nrcfp); i++) {
range->freq[range->num_frequency].i =
(long)cfp->channel;
range->freq[range->num_frequency].m =
(long)cfp->freq * 100000;
range->freq[range->num_frequency].e = 1;
cfp++;
range->num_frequency++;
}
}
lbs_deb_wext("IW_MAX_FREQUENCIES %d, num_frequency %d\n",
IW_MAX_FREQUENCIES, range->num_frequency);
range->num_channels = range->num_frequency;
sort_channels(&range->freq[0], range->num_frequency);
/*
* Set an indication of the max TCP throughput in bit/s that we can
* expect using this interface
*/
if (i > 2)
range->throughput = 5000 * 1000;
else
range->throughput = 1500 * 1000;
range->min_rts = MRVDRV_RTS_MIN_VALUE;
range->max_rts = MRVDRV_RTS_MAX_VALUE;
range->min_frag = MRVDRV_FRAG_MIN_VALUE;
range->max_frag = MRVDRV_FRAG_MAX_VALUE;
range->encoding_size[0] = 5;
range->encoding_size[1] = 13;
range->num_encoding_sizes = 2;
range->max_encoding_tokens = 4;
/*
* Right now we support only "iwconfig ethX power on|off"
*/
range->pm_capa = IW_POWER_ON;
/*
* Minimum version we recommend
*/
range->we_version_source = 15;
/*
* Version we are compiled with
*/
range->we_version_compiled = WIRELESS_EXT;
range->retry_capa = IW_RETRY_LIMIT;
range->retry_flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
range->min_retry = TX_RETRY_MIN;
range->max_retry = TX_RETRY_MAX;
/*
* Set the qual, level and noise range values
*/
range->max_qual.qual = 100;
range->max_qual.level = 0;
range->max_qual.noise = 0;
range->max_qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
range->avg_qual.qual = 70;
/* TODO: Find real 'good' to 'bad' threshold value for RSSI */
range->avg_qual.level = 0;
range->avg_qual.noise = 0;
range->avg_qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
range->sensitivity = 0;
/* Setup the supported power level ranges */
memset(range->txpower, 0, sizeof(range->txpower));
range->txpower_capa = IW_TXPOW_DBM | IW_TXPOW_RANGE;
range->txpower[0] = priv->txpower_min;
range->txpower[1] = priv->txpower_max;
range->num_txpower = 2;
range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
IW_EVENT_CAPA_MASK(SIOCGIWAP) |
IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
range->event_capa[1] = IW_EVENT_CAPA_K_1;
if (priv->fwcapinfo & FW_CAPINFO_WPA) {
range->enc_capa = IW_ENC_CAPA_WPA
| IW_ENC_CAPA_WPA2
| IW_ENC_CAPA_CIPHER_TKIP
| IW_ENC_CAPA_CIPHER_CCMP;
}
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
if (vwrq->disabled)
return 0;
else
return -EINVAL;
}
/* PS is currently supported only in Infrastructure mode
* Remove this check if it is to be supported in IBSS mode also
*/
if (vwrq->disabled) {
priv->psmode = LBS802_11POWERMODECAM;
if (priv->psstate != PS_STATE_FULL_POWER) {
lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
}
return 0;
}
if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) {
lbs_deb_wext(
"setting power timeout is not supported\n");
return -EINVAL;
} else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
vwrq->value = vwrq->value / 1000;
if (!priv->enter_deep_sleep) {
lbs_pr_err("deep sleep feature is not implemented "
"for this interface driver\n");
return -EINVAL;
}
if (priv->connect_status == LBS_CONNECTED) {
if ((priv->is_auto_deep_sleep_enabled) &&
(vwrq->value == -1000)) {
lbs_exit_auto_deep_sleep(priv);
return 0;
} else {
lbs_pr_err("can't use deep sleep cmd in "
"connected state\n");
return -EINVAL;
}
}
if ((vwrq->value < 0) && (vwrq->value != -1000)) {
lbs_pr_err("unknown option\n");
return -EINVAL;
}
if (vwrq->value > 0) {
if (!priv->is_auto_deep_sleep_enabled) {
priv->is_activity_detected = 0;
priv->auto_deep_sleep_timeout = vwrq->value;
lbs_enter_auto_deep_sleep(priv);
} else {
priv->auto_deep_sleep_timeout = vwrq->value;
lbs_deb_debugfs("auto deep sleep: "
"already enabled\n");
}
return 0;
} else {
if (priv->is_auto_deep_sleep_enabled) {
lbs_exit_auto_deep_sleep(priv);
/* Try to exit deep sleep if auto */
/*deep sleep disabled */
ret = lbs_set_deep_sleep(priv, 0);
}
if (vwrq->value == 0)
ret = lbs_set_deep_sleep(priv, 1);
else if (vwrq->value == -1000)
ret = lbs_set_deep_sleep(priv, 0);
return ret;
}
}
if (priv->psmode != LBS802_11POWERMODECAM) {
return 0;
}
priv->psmode = LBS802_11POWERMODEMAX_PSP;
if (priv->connect_status == LBS_CONNECTED) {
lbs_ps_sleep(priv, CMD_OPTION_WAITFORRSP);
}
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_get_power(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
vwrq->value = 0;
vwrq->flags = 0;
vwrq->disabled = priv->psmode == LBS802_11POWERMODECAM
|| priv->connect_status == LBS_DISCONNECTED;
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static struct iw_statistics *lbs_get_wireless_stats(struct net_device *dev)
{
enum {
POOR = 30,
FAIR = 60,
GOOD = 80,
VERY_GOOD = 90,
EXCELLENT = 95,
PERFECT = 100
};
struct lbs_private *priv = dev->ml_priv;
u32 rssi_qual;
u32 tx_qual;
u32 quality = 0;
int ret, stats_valid = 0;
u8 rssi;
u32 tx_retries;
struct cmd_ds_802_11_get_log log;
lbs_deb_enter(LBS_DEB_WEXT);
priv->wstats.status = priv->mode;
/* If we're not associated, all quality values are meaningless */
if ((priv->connect_status != LBS_CONNECTED) &&
!lbs_mesh_connected(priv))
goto out;
/* Quality by RSSI */
priv->wstats.qual.level =
CAL_RSSI(priv->SNR[TYPE_BEACON][TYPE_NOAVG],
priv->NF[TYPE_BEACON][TYPE_NOAVG]);
if (priv->NF[TYPE_BEACON][TYPE_NOAVG] == 0) {
priv->wstats.qual.noise = MRVDRV_NF_DEFAULT_SCAN_VALUE;
} else {
priv->wstats.qual.noise =
CAL_NF(priv->NF[TYPE_BEACON][TYPE_NOAVG]);
}
lbs_deb_wext("signal level %#x\n", priv->wstats.qual.level);
lbs_deb_wext("noise %#x\n", priv->wstats.qual.noise);
rssi = priv->wstats.qual.level - priv->wstats.qual.noise;
if (rssi < 15)
rssi_qual = rssi * POOR / 10;
else if (rssi < 20)
rssi_qual = (rssi - 15) * (FAIR - POOR) / 5 + POOR;
else if (rssi < 30)
rssi_qual = (rssi - 20) * (GOOD - FAIR) / 5 + FAIR;
else if (rssi < 40)
rssi_qual = (rssi - 30) * (VERY_GOOD - GOOD) /
10 + GOOD;
else
rssi_qual = (rssi - 40) * (PERFECT - VERY_GOOD) /
10 + VERY_GOOD;
quality = rssi_qual;
/* Quality by TX errors */
priv->wstats.discard.retries = dev->stats.tx_errors;
memset(&log, 0, sizeof(log));
log.hdr.size = cpu_to_le16(sizeof(log));
ret = lbs_cmd_with_response(priv, CMD_802_11_GET_LOG, &log);
if (ret)
goto out;
tx_retries = le32_to_cpu(log.retry);
if (tx_retries > 75)
tx_qual = (90 - tx_retries) * POOR / 15;
else if (tx_retries > 70)
tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
else if (tx_retries > 65)
tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
else if (tx_retries > 50)
tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
15 + GOOD;
else
tx_qual = (50 - tx_retries) *
(PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
quality = min(quality, tx_qual);
priv->wstats.discard.code = le32_to_cpu(log.wepundecryptable);
priv->wstats.discard.retries = tx_retries;
priv->wstats.discard.misc = le32_to_cpu(log.ackfailure);
/* Calculate quality */
priv->wstats.qual.qual = min_t(u8, quality, 100);
priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
stats_valid = 1;
/* update stats asynchronously for future calls */
ret = lbs_prepare_and_send_command(priv, CMD_802_11_RSSI, 0,
0, 0, NULL);
if (ret)
lbs_pr_err("RSSI command failed\n");
out:
if (!stats_valid) {
priv->wstats.miss.beacon = 0;
priv->wstats.discard.retries = 0;
priv->wstats.qual.qual = 0;
priv->wstats.qual.level = 0;
priv->wstats.qual.noise = 0;
priv->wstats.qual.updated = IW_QUAL_ALL_UPDATED;
priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID |
IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
}
lbs_deb_leave(LBS_DEB_WEXT);
return &priv->wstats;
}
static int lbs_set_freq(struct net_device *dev, struct iw_request_info *info,
struct iw_freq *fwrq, char *extra)
{
int ret = -EINVAL;
struct lbs_private *priv = dev->ml_priv;
struct chan_freq_power *cfp;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
/* If setting by frequency, convert to a channel */
if (fwrq->e == 1) {
long f = fwrq->m / 100000;
cfp = find_cfp_by_band_and_freq(priv, 0, f);
if (!cfp) {
lbs_deb_wext("invalid freq %ld\n", f);
goto out;
}
fwrq->e = 0;
fwrq->m = (int) cfp->channel;
}
/* Setting by channel number */
if (fwrq->m > 1000 || fwrq->e > 0) {
goto out;
}
cfp = lbs_find_cfp_by_band_and_channel(priv, 0, fwrq->m);
if (!cfp) {
goto out;
}
assoc_req->channel = fwrq->m;
ret = 0;
out:
if (ret == 0) {
set_bit(ASSOC_FLAG_CHANNEL, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
#ifdef CONFIG_LIBERTAS_MESH
static int lbs_mesh_set_freq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *fwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
struct chan_freq_power *cfp;
int ret = -EINVAL;
lbs_deb_enter(LBS_DEB_WEXT);
/* If setting by frequency, convert to a channel */
if (fwrq->e == 1) {
long f = fwrq->m / 100000;
cfp = find_cfp_by_band_and_freq(priv, 0, f);
if (!cfp) {
lbs_deb_wext("invalid freq %ld\n", f);
goto out;
}
fwrq->e = 0;
fwrq->m = (int) cfp->channel;
}
/* Setting by channel number */
if (fwrq->m > 1000 || fwrq->e > 0) {
goto out;
}
cfp = lbs_find_cfp_by_band_and_channel(priv, 0, fwrq->m);
if (!cfp) {
goto out;
}
if (fwrq->m != priv->channel) {
lbs_deb_wext("mesh channel change forces eth disconnect\n");
if (priv->mode == IW_MODE_INFRA)
lbs_cmd_80211_deauthenticate(priv,
priv->curbssparams.bssid,
WLAN_REASON_DEAUTH_LEAVING);
else if (priv->mode == IW_MODE_ADHOC)
lbs_adhoc_stop(priv);
}
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, fwrq->m);
lbs_update_channel(priv);
ret = 0;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
#endif
static int lbs_set_rate(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
u8 new_rate = 0;
int ret = -EINVAL;
u8 rates[MAX_RATES + 1];
lbs_deb_enter(LBS_DEB_WEXT);
lbs_deb_wext("vwrq->value %d\n", vwrq->value);
lbs_deb_wext("vwrq->fixed %d\n", vwrq->fixed);
if (vwrq->fixed && vwrq->value == -1)
goto out;
/* Auto rate? */
priv->enablehwauto = !vwrq->fixed;
if (vwrq->value == -1)
priv->cur_rate = 0;
else {
if (vwrq->value % 100000)
goto out;
new_rate = vwrq->value / 500000;
priv->cur_rate = new_rate;
/* the rest is only needed for lbs_set_data_rate() */
memset(rates, 0, sizeof(rates));
copy_active_data_rates(priv, rates);
if (!memchr(rates, new_rate, sizeof(rates))) {
lbs_pr_alert("fixed data rate 0x%X out of range\n",
new_rate);
goto out;
}
if (priv->fwrelease < 0x09000000) {
ret = lbs_set_power_adapt_cfg(priv, 0,
POW_ADAPT_DEFAULT_P0,
POW_ADAPT_DEFAULT_P1,
POW_ADAPT_DEFAULT_P2);
if (ret)
goto out;
}
ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1,
TPC_DEFAULT_P2, 1);
if (ret)
goto out;
}
/* Try the newer command first (Firmware Spec 5.1 and above) */
ret = lbs_cmd_802_11_rate_adapt_rateset(priv, CMD_ACT_SET);
/* Fallback to older version */
if (ret)
ret = lbs_set_data_rate(priv, new_rate);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_rate(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (priv->connect_status == LBS_CONNECTED) {
vwrq->value = priv->cur_rate * 500000;
if (priv->enablehwauto)
vwrq->fixed = 0;
else
vwrq->fixed = 1;
} else {
vwrq->fixed = 0;
vwrq->value = 0;
}
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_mode(struct net_device *dev,
struct iw_request_info *info, u32 * uwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->ml_priv;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
if ( (*uwrq != IW_MODE_ADHOC)
&& (*uwrq != IW_MODE_INFRA)
&& (*uwrq != IW_MODE_AUTO)) {
lbs_deb_wext("Invalid mode: 0x%x\n", *uwrq);
ret = -EINVAL;
goto out;
}
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
lbs_cancel_association_work(priv);
} else {
assoc_req->mode = *uwrq;
set_bit(ASSOC_FLAG_MODE, &assoc_req->flags);
lbs_postpone_association_work(priv);
lbs_deb_wext("Switching to mode: 0x%x\n", *uwrq);
}
mutex_unlock(&priv->lock);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Get Encryption key
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_get_encode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, u8 * extra)
{
struct lbs_private *priv = dev->ml_priv;
int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
lbs_deb_enter(LBS_DEB_WEXT);
lbs_deb_wext("flags 0x%x, index %d, length %d, wep_tx_keyidx %d\n",
dwrq->flags, index, dwrq->length, priv->wep_tx_keyidx);
dwrq->flags = 0;
/* Authentication method */
switch (priv->secinfo.auth_mode) {
case IW_AUTH_ALG_OPEN_SYSTEM:
dwrq->flags = IW_ENCODE_OPEN;
break;
case IW_AUTH_ALG_SHARED_KEY:
case IW_AUTH_ALG_LEAP:
dwrq->flags = IW_ENCODE_RESTRICTED;
break;
default:
dwrq->flags = IW_ENCODE_DISABLED | IW_ENCODE_OPEN;
break;
}
memset(extra, 0, 16);
mutex_lock(&priv->lock);
/* Default to returning current transmit key */
if (index < 0)
index = priv->wep_tx_keyidx;
if ((priv->wep_keys[index].len) && priv->secinfo.wep_enabled) {
memcpy(extra, priv->wep_keys[index].key,
priv->wep_keys[index].len);
dwrq->length = priv->wep_keys[index].len;
dwrq->flags |= (index + 1);
/* Return WEP enabled */
dwrq->flags &= ~IW_ENCODE_DISABLED;
} else if ((priv->secinfo.WPAenabled)
|| (priv->secinfo.WPA2enabled)) {
/* return WPA enabled */
dwrq->flags &= ~IW_ENCODE_DISABLED;
dwrq->flags |= IW_ENCODE_NOKEY;
} else {
dwrq->flags |= IW_ENCODE_DISABLED;
}
mutex_unlock(&priv->lock);
lbs_deb_wext("key: %02x:%02x:%02x:%02x:%02x:%02x, keylen %d\n",
extra[0], extra[1], extra[2],
extra[3], extra[4], extra[5], dwrq->length);
lbs_deb_wext("return flags 0x%x\n", dwrq->flags);
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
/**
* @brief Set Encryption key (internal)
*
* @param priv A pointer to private card structure
* @param key_material A pointer to key material
* @param key_length length of key material
* @param index key index to set
* @param set_tx_key Force set TX key (1 = yes, 0 = no)
* @return 0 --success, otherwise fail
*/
static int lbs_set_wep_key(struct assoc_request *assoc_req,
const char *key_material,
u16 key_length,
u16 index,
int set_tx_key)
{
int ret = 0;
struct enc_key *pkey;
lbs_deb_enter(LBS_DEB_WEXT);
/* Paranoid validation of key index */
if (index > 3) {
ret = -EINVAL;
goto out;
}
/* validate max key length */
if (key_length > KEY_LEN_WEP_104) {
ret = -EINVAL;
goto out;
}
pkey = &assoc_req->wep_keys[index];
if (key_length > 0) {
memset(pkey, 0, sizeof(struct enc_key));
pkey->type = KEY_TYPE_ID_WEP;
/* Standardize the key length */
pkey->len = (key_length > KEY_LEN_WEP_40) ?
KEY_LEN_WEP_104 : KEY_LEN_WEP_40;
memcpy(pkey->key, key_material, key_length);
}
if (set_tx_key) {
/* Ensure the chosen key is valid */
if (!pkey->len) {
lbs_deb_wext("key not set, so cannot enable it\n");
ret = -EINVAL;
goto out;
}
assoc_req->wep_tx_keyidx = index;
}
assoc_req->secinfo.wep_enabled = 1;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int validate_key_index(u16 def_index, u16 raw_index,
u16 *out_index, u16 *is_default)
{
if (!out_index || !is_default)
return -EINVAL;
/* Verify index if present, otherwise use default TX key index */
if (raw_index > 0) {
if (raw_index > 4)
return -EINVAL;
*out_index = raw_index - 1;
} else {
*out_index = def_index;
*is_default = 1;
}
return 0;
}
static void disable_wep(struct assoc_request *assoc_req)
{
int i;
lbs_deb_enter(LBS_DEB_WEXT);
/* Set Open System auth mode */
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
/* Clear WEP keys and mark WEP as disabled */
assoc_req->secinfo.wep_enabled = 0;
for (i = 0; i < 4; i++)
assoc_req->wep_keys[i].len = 0;
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
lbs_deb_leave(LBS_DEB_WEXT);
}
static void disable_wpa(struct assoc_request *assoc_req)
{
lbs_deb_enter(LBS_DEB_WEXT);
memset(&assoc_req->wpa_mcast_key, 0, sizeof (struct enc_key));
assoc_req->wpa_mcast_key.flags = KEY_INFO_WPA_MCAST;
set_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
memset(&assoc_req->wpa_unicast_key, 0, sizeof (struct enc_key));
assoc_req->wpa_unicast_key.flags = KEY_INFO_WPA_UNICAST;
set_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
assoc_req->secinfo.WPAenabled = 0;
assoc_req->secinfo.WPA2enabled = 0;
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
lbs_deb_leave(LBS_DEB_WEXT);
}
/**
* @brief Set Encryption key
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_set_encode(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->ml_priv;
struct assoc_request * assoc_req;
u16 is_default = 0, index = 0, set_tx_key = 0;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
if (dwrq->flags & IW_ENCODE_DISABLED) {
disable_wep (assoc_req);
disable_wpa (assoc_req);
goto out;
}
ret = validate_key_index(assoc_req->wep_tx_keyidx,
(dwrq->flags & IW_ENCODE_INDEX),
&index, &is_default);
if (ret) {
ret = -EINVAL;
goto out;
}
/* If WEP isn't enabled, or if there is no key data but a valid
* index, set the TX key.
*/
if (!assoc_req->secinfo.wep_enabled || (dwrq->length == 0 && !is_default))
set_tx_key = 1;
ret = lbs_set_wep_key(assoc_req, extra, dwrq->length, index, set_tx_key);
if (ret)
goto out;
if (dwrq->length)
set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
if (set_tx_key)
set_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags);
if (dwrq->flags & IW_ENCODE_RESTRICTED) {
priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->flags & IW_ENCODE_OPEN) {
priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
out:
if (ret == 0) {
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Get Extended Encryption key (WPA/802.1x and WEP)
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 on success, otherwise failure
*/
static int lbs_get_encodeext(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
int ret = -EINVAL;
struct lbs_private *priv = dev->ml_priv;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
int index, max_key_len;
lbs_deb_enter(LBS_DEB_WEXT);
max_key_len = dwrq->length - sizeof(*ext);
if (max_key_len < 0)
goto out;
index = dwrq->flags & IW_ENCODE_INDEX;
if (index) {
if (index < 1 || index > 4)
goto out;
index--;
} else {
index = priv->wep_tx_keyidx;
}
if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
ext->alg != IW_ENCODE_ALG_WEP) {
if (index != 0 || priv->mode != IW_MODE_INFRA)
goto out;
}
dwrq->flags = index + 1;
memset(ext, 0, sizeof(*ext));
if ( !priv->secinfo.wep_enabled
&& !priv->secinfo.WPAenabled
&& !priv->secinfo.WPA2enabled) {
ext->alg = IW_ENCODE_ALG_NONE;
ext->key_len = 0;
dwrq->flags |= IW_ENCODE_DISABLED;
} else {
u8 *key = NULL;
if ( priv->secinfo.wep_enabled
&& !priv->secinfo.WPAenabled
&& !priv->secinfo.WPA2enabled) {
/* WEP */
ext->alg = IW_ENCODE_ALG_WEP;
ext->key_len = priv->wep_keys[index].len;
key = &priv->wep_keys[index].key[0];
} else if ( !priv->secinfo.wep_enabled
&& (priv->secinfo.WPAenabled ||
priv->secinfo.WPA2enabled)) {
/* WPA */
struct enc_key * pkey = NULL;
if ( priv->wpa_mcast_key.len
&& (priv->wpa_mcast_key.flags & KEY_INFO_WPA_ENABLED))
pkey = &priv->wpa_mcast_key;
else if ( priv->wpa_unicast_key.len
&& (priv->wpa_unicast_key.flags & KEY_INFO_WPA_ENABLED))
pkey = &priv->wpa_unicast_key;
if (pkey) {
if (pkey->type == KEY_TYPE_ID_AES) {
ext->alg = IW_ENCODE_ALG_CCMP;
} else {
ext->alg = IW_ENCODE_ALG_TKIP;
}
ext->key_len = pkey->len;
key = &pkey->key[0];
} else {
ext->alg = IW_ENCODE_ALG_TKIP;
ext->key_len = 0;
}
} else {
goto out;
}
if (ext->key_len > max_key_len) {
ret = -E2BIG;
goto out;
}
if (ext->key_len)
memcpy(ext->key, key, ext->key_len);
else
dwrq->flags |= IW_ENCODE_NOKEY;
dwrq->flags |= IW_ENCODE_ENABLED;
}
ret = 0;
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
/**
* @brief Set Encryption key Extended (WPA/802.1x and WEP)
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param vwrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_set_encodeext(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->ml_priv;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
int alg = ext->alg;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
if ((alg == IW_ENCODE_ALG_NONE) || (dwrq->flags & IW_ENCODE_DISABLED)) {
disable_wep (assoc_req);
disable_wpa (assoc_req);
} else if (alg == IW_ENCODE_ALG_WEP) {
u16 is_default = 0, index, set_tx_key = 0;
ret = validate_key_index(assoc_req->wep_tx_keyidx,
(dwrq->flags & IW_ENCODE_INDEX),
&index, &is_default);
if (ret)
goto out;
/* If WEP isn't enabled, or if there is no key data but a valid
* index, or if the set-TX-key flag was passed, set the TX key.
*/
if ( !assoc_req->secinfo.wep_enabled
|| (dwrq->length == 0 && !is_default)
|| (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY))
set_tx_key = 1;
/* Copy key to driver */
ret = lbs_set_wep_key(assoc_req, ext->key, ext->key_len, index,
set_tx_key);
if (ret)
goto out;
if (dwrq->flags & IW_ENCODE_RESTRICTED) {
priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->flags & IW_ENCODE_OPEN) {
priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
/* Mark the various WEP bits as modified */
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
if (dwrq->length)
set_bit(ASSOC_FLAG_WEP_KEYS, &assoc_req->flags);
if (set_tx_key)
set_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags);
} else if ((alg == IW_ENCODE_ALG_TKIP) || (alg == IW_ENCODE_ALG_CCMP)) {
struct enc_key * pkey;
/* validate key length */
if (((alg == IW_ENCODE_ALG_TKIP)
&& (ext->key_len != KEY_LEN_WPA_TKIP))
|| ((alg == IW_ENCODE_ALG_CCMP)
&& (ext->key_len != KEY_LEN_WPA_AES))) {
lbs_deb_wext("invalid size %d for key of alg "
"type %d\n",
ext->key_len,
alg);
ret = -EINVAL;
goto out;
}
if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
pkey = &assoc_req->wpa_mcast_key;
set_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags);
} else {
pkey = &assoc_req->wpa_unicast_key;
set_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags);
}
memset(pkey, 0, sizeof (struct enc_key));
memcpy(pkey->key, ext->key, ext->key_len);
pkey->len = ext->key_len;
if (pkey->len)
pkey->flags |= KEY_INFO_WPA_ENABLED;
/* Do this after zeroing key structure */
if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
pkey->flags |= KEY_INFO_WPA_MCAST;
} else {
pkey->flags |= KEY_INFO_WPA_UNICAST;
}
if (alg == IW_ENCODE_ALG_TKIP) {
pkey->type = KEY_TYPE_ID_TKIP;
} else if (alg == IW_ENCODE_ALG_CCMP) {
pkey->type = KEY_TYPE_ID_AES;
}
/* If WPA isn't enabled yet, do that now */
if ( assoc_req->secinfo.WPAenabled == 0
&& assoc_req->secinfo.WPA2enabled == 0) {
assoc_req->secinfo.WPAenabled = 1;
assoc_req->secinfo.WPA2enabled = 1;
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
}
/* Only disable wep if necessary: can't waste time here. */
if (priv->mac_control & CMD_ACT_MAC_WEP_ENABLE)
disable_wep(assoc_req);
}
out:
if (ret == 0) {
/* 802.1x and WPA rekeying must happen as quickly as possible,
* especially during the 4-way handshake; thus if in
* infrastructure mode, and either (a) 802.1x is enabled or
* (b) WPA is being used, set the key right away.
*/
if (assoc_req->mode == IW_MODE_INFRA &&
((assoc_req->secinfo.key_mgmt & IW_AUTH_KEY_MGMT_802_1X) ||
(assoc_req->secinfo.key_mgmt & IW_AUTH_KEY_MGMT_PSK) ||
assoc_req->secinfo.WPAenabled ||
assoc_req->secinfo.WPA2enabled)) {
lbs_do_association_work(priv);
} else
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_genie(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
struct assoc_request * assoc_req;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
if (dwrq->length > MAX_WPA_IE_LEN ||
(dwrq->length && extra == NULL)) {
ret = -EINVAL;
goto out;
}
if (dwrq->length) {
memcpy(&assoc_req->wpa_ie[0], extra, dwrq->length);
assoc_req->wpa_ie_len = dwrq->length;
} else {
memset(&assoc_req->wpa_ie[0], 0, sizeof(priv->wpa_ie));
assoc_req->wpa_ie_len = 0;
}
out:
if (ret == 0) {
set_bit(ASSOC_FLAG_WPA_IE, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_genie(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq,
char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
if (priv->wpa_ie_len == 0) {
dwrq->length = 0;
goto out;
}
if (dwrq->length < priv->wpa_ie_len) {
ret = -E2BIG;
goto out;
}
dwrq->length = priv->wpa_ie_len;
memcpy(extra, &priv->wpa_ie[0], priv->wpa_ie_len);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_auth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *dwrq,
char *extra)
{
struct lbs_private *priv = dev->ml_priv;
struct assoc_request * assoc_req;
int ret = 0;
int updated = 0;
lbs_deb_enter(LBS_DEB_WEXT);
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
goto out;
}
switch (dwrq->flags & IW_AUTH_INDEX) {
case IW_AUTH_PRIVACY_INVOKED:
case IW_AUTH_RX_UNENCRYPTED_EAPOL:
case IW_AUTH_TKIP_COUNTERMEASURES:
case IW_AUTH_CIPHER_PAIRWISE:
case IW_AUTH_CIPHER_GROUP:
case IW_AUTH_DROP_UNENCRYPTED:
/*
* libertas does not use these parameters
*/
break;
case IW_AUTH_KEY_MGMT:
assoc_req->secinfo.key_mgmt = dwrq->value;
updated = 1;
break;
case IW_AUTH_WPA_VERSION:
if (dwrq->value & IW_AUTH_WPA_VERSION_DISABLED) {
assoc_req->secinfo.WPAenabled = 0;
assoc_req->secinfo.WPA2enabled = 0;
disable_wpa (assoc_req);
}
if (dwrq->value & IW_AUTH_WPA_VERSION_WPA) {
assoc_req->secinfo.WPAenabled = 1;
assoc_req->secinfo.wep_enabled = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
if (dwrq->value & IW_AUTH_WPA_VERSION_WPA2) {
assoc_req->secinfo.WPA2enabled = 1;
assoc_req->secinfo.wep_enabled = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
updated = 1;
break;
case IW_AUTH_80211_AUTH_ALG:
if (dwrq->value & IW_AUTH_ALG_SHARED_KEY) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->value & IW_AUTH_ALG_OPEN_SYSTEM) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
} else if (dwrq->value & IW_AUTH_ALG_LEAP) {
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_LEAP;
} else {
ret = -EINVAL;
}
updated = 1;
break;
case IW_AUTH_WPA_ENABLED:
if (dwrq->value) {
if (!assoc_req->secinfo.WPAenabled &&
!assoc_req->secinfo.WPA2enabled) {
assoc_req->secinfo.WPAenabled = 1;
assoc_req->secinfo.WPA2enabled = 1;
assoc_req->secinfo.wep_enabled = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
} else {
assoc_req->secinfo.WPAenabled = 0;
assoc_req->secinfo.WPA2enabled = 0;
disable_wpa (assoc_req);
}
updated = 1;
break;
default:
ret = -EOPNOTSUPP;
break;
}
out:
if (ret == 0) {
if (updated)
set_bit(ASSOC_FLAG_SECINFO, &assoc_req->flags);
lbs_postpone_association_work(priv);
} else if (ret != -EOPNOTSUPP) {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_auth(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *dwrq,
char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
switch (dwrq->flags & IW_AUTH_INDEX) {
case IW_AUTH_KEY_MGMT:
dwrq->value = priv->secinfo.key_mgmt;
break;
case IW_AUTH_WPA_VERSION:
dwrq->value = 0;
if (priv->secinfo.WPAenabled)
dwrq->value |= IW_AUTH_WPA_VERSION_WPA;
if (priv->secinfo.WPA2enabled)
dwrq->value |= IW_AUTH_WPA_VERSION_WPA2;
if (!dwrq->value)
dwrq->value |= IW_AUTH_WPA_VERSION_DISABLED;
break;
case IW_AUTH_80211_AUTH_ALG:
dwrq->value = priv->secinfo.auth_mode;
break;
case IW_AUTH_WPA_ENABLED:
if (priv->secinfo.WPAenabled && priv->secinfo.WPA2enabled)
dwrq->value = 1;
break;
default:
ret = -EOPNOTSUPP;
}
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
int ret = 0;
struct lbs_private *priv = dev->ml_priv;
s16 dbm = (s16) vwrq->value;
lbs_deb_enter(LBS_DEB_WEXT);
if (vwrq->disabled) {
lbs_set_radio(priv, RADIO_PREAMBLE_AUTO, 0);
goto out;
}
if (vwrq->fixed == 0) {
/* User requests automatic tx power control, however there are
* many auto tx settings. For now use firmware defaults until
* we come up with a good way to expose these to the user. */
if (priv->fwrelease < 0x09000000) {
ret = lbs_set_power_adapt_cfg(priv, 1,
POW_ADAPT_DEFAULT_P0,
POW_ADAPT_DEFAULT_P1,
POW_ADAPT_DEFAULT_P2);
if (ret)
goto out;
}
ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1,
TPC_DEFAULT_P2, 1);
if (ret)
goto out;
dbm = priv->txpower_max;
} else {
/* Userspace check in iwrange if it should use dBm or mW,
* therefore this should never happen... Jean II */
if ((vwrq->flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) {
ret = -EOPNOTSUPP;
goto out;
}
/* Validate requested power level against firmware allowed
* levels */
if (priv->txpower_min && (dbm < priv->txpower_min)) {
ret = -EINVAL;
goto out;
}
if (priv->txpower_max && (dbm > priv->txpower_max)) {
ret = -EINVAL;
goto out;
}
if (priv->fwrelease < 0x09000000) {
ret = lbs_set_power_adapt_cfg(priv, 0,
POW_ADAPT_DEFAULT_P0,
POW_ADAPT_DEFAULT_P1,
POW_ADAPT_DEFAULT_P2);
if (ret)
goto out;
}
ret = lbs_set_tpc_cfg(priv, 0, TPC_DEFAULT_P0, TPC_DEFAULT_P1,
TPC_DEFAULT_P2, 1);
if (ret)
goto out;
}
/* If the radio was off, turn it on */
if (!priv->radio_on) {
ret = lbs_set_radio(priv, RADIO_PREAMBLE_AUTO, 1);
if (ret)
goto out;
}
lbs_deb_wext("txpower set %d dBm\n", dbm);
ret = lbs_set_tx_power(priv, dbm);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
static int lbs_get_essid(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
/*
* Note : if dwrq->flags != 0, we should get the relevant SSID from
* the SSID list...
*/
/*
* Get the current SSID
*/
if (priv->connect_status == LBS_CONNECTED) {
memcpy(extra, priv->curbssparams.ssid,
priv->curbssparams.ssid_len);
} else {
memset(extra, 0, 32);
}
/*
* If none, we may want to get the one that was set
*/
dwrq->length = priv->curbssparams.ssid_len;
dwrq->flags = 1; /* active */
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_set_essid(struct net_device *dev, struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
u8 ssid[IEEE80211_MAX_SSID_LEN];
u8 ssid_len = 0;
struct assoc_request * assoc_req;
int in_ssid_len = dwrq->length;
DECLARE_SSID_BUF(ssid_buf);
lbs_deb_enter(LBS_DEB_WEXT);
if (!priv->radio_on) {
ret = -EINVAL;
goto out;
}
/* Check the size of the string */
if (in_ssid_len > IEEE80211_MAX_SSID_LEN) {
ret = -E2BIG;
goto out;
}
memset(&ssid, 0, sizeof(ssid));
if (!dwrq->flags || !in_ssid_len) {
/* "any" SSID requested; leave SSID blank */
} else {
/* Specific SSID requested */
memcpy(&ssid, extra, in_ssid_len);
ssid_len = in_ssid_len;
}
if (!ssid_len) {
lbs_deb_wext("requested any SSID\n");
} else {
lbs_deb_wext("requested SSID '%s'\n",
print_ssid(ssid_buf, ssid, ssid_len));
}
out:
mutex_lock(&priv->lock);
if (ret == 0) {
/* Get or create the current association request */
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
ret = -ENOMEM;
} else {
/* Copy the SSID to the association request */
memcpy(&assoc_req->ssid, &ssid, IEEE80211_MAX_SSID_LEN);
assoc_req->ssid_len = ssid_len;
set_bit(ASSOC_FLAG_SSID, &assoc_req->flags);
lbs_postpone_association_work(priv);
}
}
/* Cancel the association request if there was an error */
if (ret != 0) {
lbs_cancel_association_work(priv);
}
mutex_unlock(&priv->lock);
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
#ifdef CONFIG_LIBERTAS_MESH
static int lbs_mesh_get_essid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
lbs_deb_enter(LBS_DEB_WEXT);
memcpy(extra, priv->mesh_ssid, priv->mesh_ssid_len);
dwrq->length = priv->mesh_ssid_len;
dwrq->flags = 1; /* active */
lbs_deb_leave(LBS_DEB_WEXT);
return 0;
}
static int lbs_mesh_set_essid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *dwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
if (!priv->radio_on) {
ret = -EINVAL;
goto out;
}
/* Check the size of the string */
if (dwrq->length > IEEE80211_MAX_SSID_LEN) {
ret = -E2BIG;
goto out;
}
if (!dwrq->flags || !dwrq->length) {
ret = -EINVAL;
goto out;
} else {
/* Specific SSID requested */
memcpy(priv->mesh_ssid, extra, dwrq->length);
priv->mesh_ssid_len = dwrq->length;
}
lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
priv->channel);
out:
lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
return ret;
}
#endif
/**
* @brief Connect to the AP or Ad-hoc Network with specific bssid
*
* @param dev A pointer to net_device structure
* @param info A pointer to iw_request_info structure
* @param awrq A pointer to iw_param structure
* @param extra A pointer to extra data buf
* @return 0 --success, otherwise fail
*/
static int lbs_set_wap(struct net_device *dev, struct iw_request_info *info,
struct sockaddr *awrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
struct assoc_request * assoc_req;
int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
if (!priv->radio_on)
return -EINVAL;
if (awrq->sa_family != ARPHRD_ETHER)
return -EINVAL;
lbs_deb_wext("ASSOC: WAP: sa_data %pM\n", awrq->sa_data);
mutex_lock(&priv->lock);
/* Get or create the current association request */
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
lbs_cancel_association_work(priv);
ret = -ENOMEM;
} else {
/* Copy the BSSID to the association request */
memcpy(&assoc_req->bssid, awrq->sa_data, ETH_ALEN);
set_bit(ASSOC_FLAG_BSSID, &assoc_req->flags);
lbs_postpone_association_work(priv);
}
mutex_unlock(&priv->lock);
return ret;
}
/*
* iwconfig settable callbacks
*/
static const iw_handler lbs_handler[] = {
(iw_handler) NULL, /* SIOCSIWCOMMIT */
(iw_handler) lbs_get_name, /* SIOCGIWNAME */
(iw_handler) NULL, /* SIOCSIWNWID */
(iw_handler) NULL, /* SIOCGIWNWID */
(iw_handler) lbs_set_freq, /* SIOCSIWFREQ */
(iw_handler) lbs_get_freq, /* SIOCGIWFREQ */
(iw_handler) lbs_set_mode, /* SIOCSIWMODE */
(iw_handler) lbs_get_mode, /* SIOCGIWMODE */
(iw_handler) NULL, /* SIOCSIWSENS */
(iw_handler) NULL, /* SIOCGIWSENS */
(iw_handler) NULL, /* SIOCSIWRANGE */
(iw_handler) lbs_get_range, /* SIOCGIWRANGE */
(iw_handler) NULL, /* SIOCSIWPRIV */
(iw_handler) NULL, /* SIOCGIWPRIV */
(iw_handler) NULL, /* SIOCSIWSTATS */
(iw_handler) NULL, /* SIOCGIWSTATS */
iw_handler_set_spy, /* SIOCSIWSPY */
iw_handler_get_spy, /* SIOCGIWSPY */
iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
(iw_handler) lbs_set_wap, /* SIOCSIWAP */
(iw_handler) lbs_get_wap, /* SIOCGIWAP */
(iw_handler) NULL, /* SIOCSIWMLME */
(iw_handler) NULL, /* SIOCGIWAPLIST - deprecated */
(iw_handler) lbs_set_scan, /* SIOCSIWSCAN */
(iw_handler) lbs_get_scan, /* SIOCGIWSCAN */
(iw_handler) lbs_set_essid, /* SIOCSIWESSID */
(iw_handler) lbs_get_essid, /* SIOCGIWESSID */
(iw_handler) lbs_set_nick, /* SIOCSIWNICKN */
(iw_handler) lbs_get_nick, /* SIOCGIWNICKN */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_rate, /* SIOCSIWRATE */
(iw_handler) lbs_get_rate, /* SIOCGIWRATE */
(iw_handler) lbs_set_rts, /* SIOCSIWRTS */
(iw_handler) lbs_get_rts, /* SIOCGIWRTS */
(iw_handler) lbs_set_frag, /* SIOCSIWFRAG */
(iw_handler) lbs_get_frag, /* SIOCGIWFRAG */
(iw_handler) lbs_set_txpow, /* SIOCSIWTXPOW */
(iw_handler) lbs_get_txpow, /* SIOCGIWTXPOW */
(iw_handler) lbs_set_retry, /* SIOCSIWRETRY */
(iw_handler) lbs_get_retry, /* SIOCGIWRETRY */
(iw_handler) lbs_set_encode, /* SIOCSIWENCODE */
(iw_handler) lbs_get_encode, /* SIOCGIWENCODE */
(iw_handler) lbs_set_power, /* SIOCSIWPOWER */
(iw_handler) lbs_get_power, /* SIOCGIWPOWER */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_genie, /* SIOCSIWGENIE */
(iw_handler) lbs_get_genie, /* SIOCGIWGENIE */
(iw_handler) lbs_set_auth, /* SIOCSIWAUTH */
(iw_handler) lbs_get_auth, /* SIOCGIWAUTH */
(iw_handler) lbs_set_encodeext,/* SIOCSIWENCODEEXT */
(iw_handler) lbs_get_encodeext,/* SIOCGIWENCODEEXT */
(iw_handler) NULL, /* SIOCSIWPMKSA */
};
struct iw_handler_def lbs_handler_def = {
.num_standard = ARRAY_SIZE(lbs_handler),
.standard = (iw_handler *) lbs_handler,
.get_wireless_stats = lbs_get_wireless_stats,
};
#ifdef CONFIG_LIBERTAS_MESH
static const iw_handler mesh_wlan_handler[] = {
(iw_handler) NULL, /* SIOCSIWCOMMIT */
(iw_handler) lbs_get_name, /* SIOCGIWNAME */
(iw_handler) NULL, /* SIOCSIWNWID */
(iw_handler) NULL, /* SIOCGIWNWID */
(iw_handler) lbs_mesh_set_freq, /* SIOCSIWFREQ */
(iw_handler) lbs_get_freq, /* SIOCGIWFREQ */
(iw_handler) NULL, /* SIOCSIWMODE */
(iw_handler) mesh_wlan_get_mode, /* SIOCGIWMODE */
(iw_handler) NULL, /* SIOCSIWSENS */
(iw_handler) NULL, /* SIOCGIWSENS */
(iw_handler) NULL, /* SIOCSIWRANGE */
(iw_handler) lbs_get_range, /* SIOCGIWRANGE */
(iw_handler) NULL, /* SIOCSIWPRIV */
(iw_handler) NULL, /* SIOCGIWPRIV */
(iw_handler) NULL, /* SIOCSIWSTATS */
(iw_handler) NULL, /* SIOCGIWSTATS */
iw_handler_set_spy, /* SIOCSIWSPY */
iw_handler_get_spy, /* SIOCGIWSPY */
iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
(iw_handler) NULL, /* SIOCSIWAP */
(iw_handler) NULL, /* SIOCGIWAP */
(iw_handler) NULL, /* SIOCSIWMLME */
(iw_handler) NULL, /* SIOCGIWAPLIST - deprecated */
(iw_handler) lbs_set_scan, /* SIOCSIWSCAN */
(iw_handler) lbs_get_scan, /* SIOCGIWSCAN */
(iw_handler) lbs_mesh_set_essid,/* SIOCSIWESSID */
(iw_handler) lbs_mesh_get_essid,/* SIOCGIWESSID */
(iw_handler) NULL, /* SIOCSIWNICKN */
(iw_handler) mesh_get_nick, /* SIOCGIWNICKN */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_rate, /* SIOCSIWRATE */
(iw_handler) lbs_get_rate, /* SIOCGIWRATE */
(iw_handler) lbs_set_rts, /* SIOCSIWRTS */
(iw_handler) lbs_get_rts, /* SIOCGIWRTS */
(iw_handler) lbs_set_frag, /* SIOCSIWFRAG */
(iw_handler) lbs_get_frag, /* SIOCGIWFRAG */
(iw_handler) lbs_set_txpow, /* SIOCSIWTXPOW */
(iw_handler) lbs_get_txpow, /* SIOCGIWTXPOW */
(iw_handler) lbs_set_retry, /* SIOCSIWRETRY */
(iw_handler) lbs_get_retry, /* SIOCGIWRETRY */
(iw_handler) lbs_set_encode, /* SIOCSIWENCODE */
(iw_handler) lbs_get_encode, /* SIOCGIWENCODE */
(iw_handler) lbs_set_power, /* SIOCSIWPOWER */
(iw_handler) lbs_get_power, /* SIOCGIWPOWER */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) NULL, /* -- hole -- */
(iw_handler) lbs_set_genie, /* SIOCSIWGENIE */
(iw_handler) lbs_get_genie, /* SIOCGIWGENIE */
(iw_handler) lbs_set_auth, /* SIOCSIWAUTH */
(iw_handler) lbs_get_auth, /* SIOCGIWAUTH */
(iw_handler) lbs_set_encodeext,/* SIOCSIWENCODEEXT */
(iw_handler) lbs_get_encodeext,/* SIOCGIWENCODEEXT */
(iw_handler) NULL, /* SIOCSIWPMKSA */
};
struct iw_handler_def mesh_handler_def = {
.num_standard = ARRAY_SIZE(mesh_wlan_handler),
.standard = (iw_handler *) mesh_wlan_handler,
.get_wireless_stats = lbs_get_wireless_stats,
};
#endif
drivers/net/wireless/libertas/wext.h deleted 100644 → 0
View file @ f90754c1
/**
* This file contains definition for IOCTL call.
*/
#ifndef _LBS_WEXT_H_
#define _LBS_WEXT_H_
void lbs_send_disconnect_notification(struct lbs_private *priv);
void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event);
struct chan_freq_power *lbs_find_cfp_by_band_and_channel(
struct lbs_private *priv,
u8 band,
u16 channel);
extern struct iw_handler_def lbs_handler_def;
#endif
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