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OpenCloudOS-Kernel/drivers/net/wireless/libertas/join.c

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/**
* Functions implementing wlan infrastructure and adhoc join routines,
* IOCTL handlers as well as command preperation and response routines
* for sending adhoc start, adhoc join, and association commands
* to the firmware.
*/
#include <linux/netdevice.h>
#include <linux/if_arp.h>
#include <linux/wireless.h>
#include <linux/etherdevice.h>
#include <net/iw_handler.h>
#include "host.h"
#include "decl.h"
#include "join.h"
#include "dev.h"
#include "assoc.h"
/* The firmware needs certain bits masked out of the beacon-derviced capability
* field when associating/joining to BSSs.
*/
#define CAPINFO_MASK (~(0xda00))
/**
* @brief This function finds common rates between rate1 and card rates.
*
* It will fill common rates in rate1 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 rate1 the buffer which keeps input and output
* @param rate1_size the size of rate1 buffer; new size of buffer on return
*
* @return 0 or -1
*/
static int get_common_rates(struct lbs_private *priv,
u8 *rates,
u16 *rates_size)
{
u8 *card_rates = lbs_bg_rates;
size_t num_card_rates = sizeof(lbs_bg_rates);
int ret = 0, i, j;
u8 tmp[30];
size_t tmp_size = 0;
/* For each rate in card_rates that exists in rate1, copy to tmp */
for (i = 0; card_rates[i] && (i < num_card_rates); i++) {
for (j = 0; rates[j] && (j < *rates_size); j++) {
if (rates[j] == card_rates[i])
tmp[tmp_size++] = card_rates[i];
}
}
lbs_deb_hex(LBS_DEB_JOIN, "AP rates ", rates, *rates_size);
lbs_deb_hex(LBS_DEB_JOIN, "card rates ", card_rates, num_card_rates);
lbs_deb_hex(LBS_DEB_JOIN, "common rates", tmp, tmp_size);
lbs_deb_join("TX data rate 0x%02x\n", priv->cur_rate);
if (!priv->auto_rate) {
for (i = 0; i < tmp_size; i++) {
if (tmp[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);
ret = -1;
goto done;
}
ret = 0;
done:
memset(rates, 0, *rates_size);
*rates_size = min_t(int, tmp_size, *rates_size);
memcpy(rates, tmp, *rates_size);
return ret;
}
/**
* @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;
}
}
/**
* @brief Associate to a specific BSS discovered in a scan
*
* @param priv A pointer to struct lbs_private structure
* @param pbssdesc Pointer to the BSS descriptor to associate with.
*
* @return 0-success, otherwise fail
*/
int lbs_associate(struct lbs_private *priv, struct assoc_request *assoc_req)
{
int ret;
lbs_deb_enter(LBS_DEB_ASSOC);
ret = lbs_prepare_and_send_command(priv, CMD_802_11_AUTHENTICATE,
0, CMD_OPTION_WAITFORRSP,
0, assoc_req->bss.bssid);
if (ret)
goto done;
/* set preamble to firmware */
if ( (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
&& (assoc_req->bss.capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
else
priv->preamble = CMD_TYPE_LONG_PREAMBLE;
lbs_set_radio_control(priv);
ret = lbs_prepare_and_send_command(priv, CMD_802_11_ASSOCIATE,
0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
done:
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 adhocssid The ssid of the Adhoc Network
* @return 0--success, -1--fail
*/
int lbs_start_adhoc_network(struct lbs_private *priv,
struct assoc_request *assoc_req)
{
int ret = 0;
priv->adhoccreate = 1;
if (priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) {
lbs_deb_join("AdhocStart: Short preamble\n");
priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
} else {
lbs_deb_join("AdhocStart: Long preamble\n");
priv->preamble = CMD_TYPE_LONG_PREAMBLE;
}
lbs_set_radio_control(priv);
lbs_deb_join("AdhocStart: channel = %d\n", assoc_req->channel);
lbs_deb_join("AdhocStart: band = %d\n", assoc_req->band);
ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_START,
0, CMD_OPTION_WAITFORRSP, 0, assoc_req);
return ret;
}
/**
* @brief Join an adhoc network found in a previous scan
*
* @param priv A pointer to struct lbs_private structure
* @param pbssdesc Pointer to a BSS descriptor found in a previous scan
* to attempt to join
*
* @return 0--success, -1--fail
*/
int lbs_join_adhoc_network(struct lbs_private *priv,
struct assoc_request *assoc_req)
{
struct bss_descriptor * bss = &assoc_req->bss;
int ret = 0;
lbs_deb_join("%s: Current SSID '%s', ssid length %u\n",
__func__,
escape_essid(priv->curbssparams.ssid,
priv->curbssparams.ssid_len),
priv->curbssparams.ssid_len);
lbs_deb_join("%s: requested ssid '%s', ssid length %u\n",
__func__, escape_essid(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 shortpreamble only when both creator and card supports
short preamble */
if ( !(bss->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
|| !(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
lbs_deb_join("AdhocJoin: Long preamble\n");
priv->preamble = CMD_TYPE_LONG_PREAMBLE;
} else {
lbs_deb_join("AdhocJoin: Short preamble\n");
priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
}
lbs_set_radio_control(priv);
lbs_deb_join("AdhocJoin: channel = %d\n", assoc_req->channel);
lbs_deb_join("AdhocJoin: band = %c\n", assoc_req->band);
priv->adhoccreate = 0;
ret = lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_JOIN,
0, CMD_OPTION_WAITFORRSP,
OID_802_11_SSID, assoc_req);
out:
return ret;
}
int lbs_stop_adhoc_network(struct lbs_private *priv)
{
return lbs_prepare_and_send_command(priv, CMD_802_11_AD_HOC_STOP,
0, CMD_OPTION_WAITFORRSP, 0, NULL);
}
/**
* @brief Send Deauthentication Request
*
* @param priv A pointer to struct lbs_private structure
* @return 0--success, -1--fail
*/
int lbs_send_deauthentication(struct lbs_private *priv)
{
return lbs_prepare_and_send_command(priv, CMD_802_11_DEAUTHENTICATE,
0, CMD_OPTION_WAITFORRSP, 0, NULL);
}
/**
* @brief This function prepares command of authenticate.
*
* @param priv A pointer to struct lbs_private structure
* @param cmd A pointer to cmd_ds_command structure
* @param pdata_buf Void cast of pointer to a BSSID to authenticate with
*
* @return 0 or -1
*/
int lbs_cmd_80211_authenticate(struct lbs_private *priv,
struct cmd_ds_command *cmd,
void *pdata_buf)
{
struct cmd_ds_802_11_authenticate *pauthenticate = &cmd->params.auth;
int ret = -1;
u8 *bssid = pdata_buf;
DECLARE_MAC_BUF(mac);
lbs_deb_enter(LBS_DEB_JOIN);
cmd->command = cpu_to_le16(CMD_802_11_AUTHENTICATE);
cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_authenticate)
+ S_DS_GEN);
/* translate auth mode to 802.11 defined wire value */
switch (priv->secinfo.auth_mode) {
case IW_AUTH_ALG_OPEN_SYSTEM:
pauthenticate->authtype = 0x00;
break;
case IW_AUTH_ALG_SHARED_KEY:
pauthenticate->authtype = 0x01;
break;
case IW_AUTH_ALG_LEAP:
pauthenticate->authtype = 0x80;
break;
default:
lbs_deb_join("AUTH_CMD: invalid auth alg 0x%X\n",
priv->secinfo.auth_mode);
goto out;
}
memcpy(pauthenticate->macaddr, bssid, ETH_ALEN);
lbs_deb_join("AUTH_CMD: BSSID %s, auth 0x%x\n",
print_mac(mac, bssid), pauthenticate->authtype);
ret = 0;
out:
lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
return ret;
}
int lbs_cmd_80211_deauthenticate(struct lbs_private *priv,
struct cmd_ds_command *cmd)
{
struct cmd_ds_802_11_deauthenticate *dauth = &cmd->params.deauth;
lbs_deb_enter(LBS_DEB_JOIN);
cmd->command = cpu_to_le16(CMD_802_11_DEAUTHENTICATE);
cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_deauthenticate) +
S_DS_GEN);
/* set AP MAC address */
memmove(dauth->macaddr, priv->curbssparams.bssid, ETH_ALEN);
/* Reason code 3 = Station is leaving */
#define REASON_CODE_STA_LEAVING 3
dauth->reasoncode = cpu_to_le16(REASON_CODE_STA_LEAVING);
lbs_deb_leave(LBS_DEB_JOIN);
return 0;
}
int lbs_cmd_80211_associate(struct lbs_private *priv,
struct cmd_ds_command *cmd, void *pdata_buf)
{
struct cmd_ds_802_11_associate *passo = &cmd->params.associate;
int ret = 0;
struct assoc_request * assoc_req = pdata_buf;
struct bss_descriptor * bss = &assoc_req->bss;
u8 *pos;
u16 tmpcap, tmplen;
struct mrvlietypes_ssidparamset *ssid;
struct mrvlietypes_phyparamset *phy;
struct mrvlietypes_ssparamset *ss;
struct mrvlietypes_ratesparamset *rates;
struct mrvlietypes_rsnparamset *rsn;
lbs_deb_enter(LBS_DEB_ASSOC);
pos = (u8 *) passo;
if (!priv) {
ret = -1;
goto done;
}
cmd->command = cpu_to_le16(CMD_802_11_ASSOCIATE);
memcpy(passo->peerstaaddr, bss->bssid, sizeof(passo->peerstaaddr));
pos += sizeof(passo->peerstaaddr);
/* set the listen interval */
passo->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
pos += sizeof(passo->capability);
pos += sizeof(passo->listeninterval);
pos += sizeof(passo->bcnperiod);
pos += sizeof(passo->dtimperiod);
ssid = (struct mrvlietypes_ssidparamset *) 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;
phy = (struct mrvlietypes_phyparamset *) pos;
phy->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
tmplen = sizeof(phy->fh_ds.dsparamset);
phy->header.len = cpu_to_le16(tmplen);
memcpy(&phy->fh_ds.dsparamset,
&bss->phyparamset.dsparamset.currentchan,
tmplen);
pos += sizeof(phy->header) + tmplen;
ss = (struct mrvlietypes_ssparamset *) pos;
ss->header.type = cpu_to_le16(TLV_TYPE_CF);
tmplen = sizeof(ss->cf_ibss.cfparamset);
ss->header.len = cpu_to_le16(tmplen);
pos += sizeof(ss->header) + tmplen;
rates = (struct mrvlietypes_ratesparamset *) pos;
rates->header.type = cpu_to_le16(TLV_TYPE_RATES);
memcpy(&rates->rates, &bss->rates, MAX_RATES);
tmplen = MAX_RATES;
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);
if (assoc_req->secinfo.WPAenabled || assoc_req->secinfo.WPA2enabled) {
rsn = (struct mrvlietypes_rsnparamset *) 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: RSN IE", (u8 *) rsn,
sizeof(rsn->header) + tmplen);
pos += sizeof(rsn->header) + tmplen;
}
/* update curbssparams */
priv->curbssparams.channel = bss->phyparamset.dsparamset.currentchan;
if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
ret = -1;
goto done;
}
cmd->size = cpu_to_le16((u16) (pos - (u8 *) passo) + S_DS_GEN);
/* set the capability info */
tmpcap = (bss->capability & CAPINFO_MASK);
if (bss->mode == IW_MODE_INFRA)
tmpcap |= WLAN_CAPABILITY_ESS;
passo->capability = cpu_to_le16(tmpcap);
lbs_deb_assoc("ASSOC_CMD: capability 0x%04x\n", tmpcap);
done:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
}
int lbs_cmd_80211_ad_hoc_start(struct lbs_private *priv,
struct cmd_ds_command *cmd, void *pdata_buf)
{
struct cmd_ds_802_11_ad_hoc_start *adhs = &cmd->params.ads;
int ret = 0;
int cmdappendsize = 0;
struct assoc_request * assoc_req = pdata_buf;
u16 tmpcap = 0;
size_t ratesize = 0;
lbs_deb_enter(LBS_DEB_JOIN);
if (!priv) {
ret = -1;
goto done;
}
cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_START);
/*
* Fill in the parameters for 2 data structures:
* 1. cmd_ds_802_11_ad_hoc_start command
* 2. priv->scantable[i]
*
* Driver will fill up SSID, bsstype,IBSS param, Physical Param,
* probe delay, and cap info.
*
* Firmware will fill up beacon period, DTIM, Basic rates
* and operational rates.
*/
memset(adhs->ssid, 0, IW_ESSID_MAX_SIZE);
memcpy(adhs->ssid, assoc_req->ssid, assoc_req->ssid_len);
lbs_deb_join("ADHOC_S_CMD: SSID '%s', ssid length %u\n",
escape_essid(assoc_req->ssid, assoc_req->ssid_len),
assoc_req->ssid_len);
/* set the BSS type */
adhs->bsstype = CMD_BSS_TYPE_IBSS;
priv->mode = IW_MODE_ADHOC;
if (priv->beacon_period == 0)
priv->beacon_period = MRVDRV_BEACON_INTERVAL;
adhs->beaconperiod = cpu_to_le16(priv->beacon_period);
/* set Physical param set */
#define DS_PARA_IE_ID 3
#define DS_PARA_IE_LEN 1
adhs->phyparamset.dsparamset.elementid = DS_PARA_IE_ID;
adhs->phyparamset.dsparamset.len = DS_PARA_IE_LEN;
WARN_ON(!assoc_req->channel);
lbs_deb_join("ADHOC_S_CMD: Creating ADHOC on channel %d\n",
assoc_req->channel);
adhs->phyparamset.dsparamset.currentchan = assoc_req->channel;
/* set IBSS param set */
#define IBSS_PARA_IE_ID 6
#define IBSS_PARA_IE_LEN 2
adhs->ssparamset.ibssparamset.elementid = IBSS_PARA_IE_ID;
adhs->ssparamset.ibssparamset.len = IBSS_PARA_IE_LEN;
adhs->ssparamset.ibssparamset.atimwindow = 0;
/* set capability info */
tmpcap = WLAN_CAPABILITY_IBSS;
if (assoc_req->secinfo.wep_enabled) {
lbs_deb_join("ADHOC_S_CMD: WEP enabled, setting privacy on\n");
tmpcap |= WLAN_CAPABILITY_PRIVACY;
} else {
lbs_deb_join("ADHOC_S_CMD: WEP disabled, setting privacy off\n");
}
adhs->capability = cpu_to_le16(tmpcap);
/* probedelay */
adhs->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
memset(adhs->rates, 0, sizeof(adhs->rates));
ratesize = min(sizeof(adhs->rates), sizeof(lbs_bg_rates));
memcpy(adhs->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, &adhs->rates, ratesize);
/* Set MSB on basic rates as the firmware requires, but _after_
* copying to current bss rates.
*/
lbs_set_basic_rate_flags(adhs->rates, ratesize);
lbs_deb_join("ADHOC_S_CMD: rates=%02x %02x %02x %02x \n",
adhs->rates[0], adhs->rates[1], adhs->rates[2], adhs->rates[3]);
lbs_deb_join("ADHOC_S_CMD: AD HOC Start command is ready\n");
if (lbs_create_dnld_countryinfo_11d(priv)) {
lbs_deb_join("ADHOC_S_CMD: dnld_countryinfo_11d failed\n");
ret = -1;
goto done;
}
cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_start) +
S_DS_GEN + cmdappendsize);
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
return ret;
}
int lbs_cmd_80211_ad_hoc_stop(struct lbs_private *priv,
struct cmd_ds_command *cmd)
{
cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_STOP);
cmd->size = cpu_to_le16(S_DS_GEN);
return 0;
}
int lbs_cmd_80211_ad_hoc_join(struct lbs_private *priv,
struct cmd_ds_command *cmd, void *pdata_buf)
{
struct cmd_ds_802_11_ad_hoc_join *join_cmd = &cmd->params.adj;
struct assoc_request * assoc_req = pdata_buf;
struct bss_descriptor *bss = &assoc_req->bss;
int cmdappendsize = 0;
int ret = 0;
u16 ratesize = 0;
DECLARE_MAC_BUF(mac);
lbs_deb_enter(LBS_DEB_JOIN);
cmd->command = cpu_to_le16(CMD_802_11_AD_HOC_JOIN);
join_cmd->bss.type = CMD_BSS_TYPE_IBSS;
join_cmd->bss.beaconperiod = cpu_to_le16(bss->beaconperiod);
memcpy(&join_cmd->bss.bssid, &bss->bssid, ETH_ALEN);
memcpy(&join_cmd->bss.ssid, &bss->ssid, bss->ssid_len);
memcpy(&join_cmd->bss.phyparamset, &bss->phyparamset,
sizeof(union ieeetypes_phyparamset));
memcpy(&join_cmd->bss.ssparamset, &bss->ssparamset,
sizeof(union IEEEtypes_ssparamset));
join_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 = %s, SSID = '%s'\n",
print_mac(mac, join_cmd->bss.bssid),
join_cmd->bss.ssid);
/* failtimeout */
join_cmd->failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
/* probedelay */
join_cmd->probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
priv->curbssparams.channel = bss->channel;
/* Copy Data rates from the rates recorded in scan response */
memset(join_cmd->bss.rates, 0, sizeof(join_cmd->bss.rates));
ratesize = min_t(u16, sizeof(join_cmd->bss.rates), MAX_RATES);
memcpy(join_cmd->bss.rates, bss->rates, ratesize);
if (get_common_rates(priv, join_cmd->bss.rates, &ratesize)) {
lbs_deb_join("ADHOC_J_CMD: get_common_rates returns error.\n");
ret = -1;
goto done;
}
/* Copy the ad-hoc creating rates into Current BSS state structure */
memset(&priv->curbssparams.rates, 0, sizeof(priv->curbssparams.rates));
memcpy(&priv->curbssparams.rates, join_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(join_cmd->bss.rates, ratesize);
join_cmd->bss.ssparamset.ibssparamset.atimwindow =
cpu_to_le16(bss->atimwindow);
if (assoc_req->secinfo.wep_enabled) {
u16 tmp = le16_to_cpu(join_cmd->bss.capability);
tmp |= WLAN_CAPABILITY_PRIVACY;
join_cmd->bss.capability = cpu_to_le16(tmp);
}
if (priv->psmode == LBS802_11POWERMODEMAX_PSP) {
/* wake up first */
__le32 Localpsmode;
Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
ret = lbs_prepare_and_send_command(priv,
CMD_802_11_PS_MODE,
CMD_ACT_SET,
0, 0, &Localpsmode);
if (ret) {
ret = -1;
goto done;
}
}
if (lbs_parse_dnld_countryinfo_11d(priv, bss)) {
ret = -1;
goto done;
}
cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ad_hoc_join) +
S_DS_GEN + cmdappendsize);
done:
lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
return ret;
}
int lbs_ret_80211_associate(struct lbs_private *priv,
struct cmd_ds_command *resp)
{
int ret = 0;
union iwreq_data wrqu;
struct ieeetypes_assocrsp *passocrsp;
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;
passocrsp = (struct ieeetypes_assocrsp *) & resp->params;
/*
* Older FW versions map the IEEE 802.11 Status Code in the association
* response to the following values returned in passocrsp->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(passocrsp->statuscode);
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;
}
if (status_code) {
lbs_mac_event_disconnected(priv);
ret = -1;
goto done;
}
lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_RESP", (void *)&resp->params,
le16_to_cpu(resp->size) - S_DS_GEN);
/* 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, IW_ESSID_MAX_SIZE);
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;
}
int lbs_ret_80211_disassociate(struct lbs_private *priv,
struct cmd_ds_command *resp)
{
lbs_deb_enter(LBS_DEB_JOIN);
lbs_mac_event_disconnected(priv);
lbs_deb_leave(LBS_DEB_JOIN);
return 0;
}
int lbs_ret_80211_ad_hoc_start(struct lbs_private *priv,
struct cmd_ds_command *resp)
{
int ret = 0;
u16 command = le16_to_cpu(resp->command);
u16 result = le16_to_cpu(resp->result);
struct cmd_ds_802_11_ad_hoc_result *padhocresult;
union iwreq_data wrqu;
struct bss_descriptor *bss;
DECLARE_MAC_BUF(mac);
lbs_deb_enter(LBS_DEB_JOIN);
padhocresult = &resp->params.result;
lbs_deb_join("ADHOC_RESP: size = %d\n", le16_to_cpu(resp->size));
lbs_deb_join("ADHOC_RESP: command = %x\n", command);
lbs_deb_join("ADHOC_RESP: result = %x\n", result);
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\n");
if (priv->connect_status == LBS_CONNECTED) {
lbs_mac_event_disconnected(priv);
}
ret = -1;
goto done;
}
/*
* Now the join cmd should be successful
* If BSSID has changed use SSID to compare instead of BSSID
*/
lbs_deb_join("ADHOC_RESP: associated to '%s'\n",
escape_essid(bss->ssid, bss->ssid_len));
/* 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, padhocresult->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, IW_ESSID_MAX_SIZE);
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 Ad Hoc\n");
lbs_deb_join("ADHOC_RESP: channel = %d\n", priv->curbssparams.channel);
lbs_deb_join("ADHOC_RESP: BSSID = %s\n",
print_mac(mac, padhocresult->bssid));
done:
lbs_deb_leave_args(LBS_DEB_JOIN, "ret %d", ret);
return ret;
}
int lbs_ret_80211_ad_hoc_stop(struct lbs_private *priv,
struct cmd_ds_command *resp)
{
lbs_deb_enter(LBS_DEB_JOIN);
lbs_mac_event_disconnected(priv);
lbs_deb_leave(LBS_DEB_JOIN);
return 0;
}
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