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rtl8188eu/core/rtw_ieee80211.c
Larry Finger 3a3339b715 rtl8188eu: Replace degub macro DBG_871X with DBG_88E 
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
2015-08-15 16:38:30 -05:00

2087 lines
50 KiB
C
Raw Blame History

/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
*
******************************************************************************/
#define _IEEE80211_C
#include <drv_types.h>
#include <ieee80211.h>
#include <wifi.h>
#include <osdep_service.h>
#include <wlan_bssdef.h>
u8 RTW_WPA_OUI_TYPE[] = { 0x00, 0x50, 0xf2, 1 };
u16 RTW_WPA_VERSION = 1;
u8 WPA_AUTH_KEY_MGMT_NONE[] = { 0x00, 0x50, 0xf2, 0 };
u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x50, 0xf2, 1 };
u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x50, 0xf2, 2 };
u8 WPA_CIPHER_SUITE_NONE[] = { 0x00, 0x50, 0xf2, 0 };
u8 WPA_CIPHER_SUITE_WEP40[] = { 0x00, 0x50, 0xf2, 1 };
u8 WPA_CIPHER_SUITE_TKIP[] = { 0x00, 0x50, 0xf2, 2 };
u8 WPA_CIPHER_SUITE_WRAP[] = { 0x00, 0x50, 0xf2, 3 };
u8 WPA_CIPHER_SUITE_CCMP[] = { 0x00, 0x50, 0xf2, 4 };
u8 WPA_CIPHER_SUITE_WEP104[] = { 0x00, 0x50, 0xf2, 5 };
u16 RSN_VERSION_BSD = 1;
u8 RSN_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x0f, 0xac, 1 };
u8 RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x0f, 0xac, 2 };
u8 RSN_CIPHER_SUITE_NONE[] = { 0x00, 0x0f, 0xac, 0 };
u8 RSN_CIPHER_SUITE_WEP40[] = { 0x00, 0x0f, 0xac, 1 };
u8 RSN_CIPHER_SUITE_TKIP[] = { 0x00, 0x0f, 0xac, 2 };
u8 RSN_CIPHER_SUITE_WRAP[] = { 0x00, 0x0f, 0xac, 3 };
u8 RSN_CIPHER_SUITE_CCMP[] = { 0x00, 0x0f, 0xac, 4 };
u8 RSN_CIPHER_SUITE_WEP104[] = { 0x00, 0x0f, 0xac, 5 };
/* */
/* for adhoc-master to generate ie and provide supported-rate to fw */
/* */
static u8 WIFI_CCKRATES[] =
{(IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK),
(IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK),
(IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK),
(IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK)};
static u8 WIFI_OFDMRATES[] =
{(IEEE80211_OFDM_RATE_6MB),
(IEEE80211_OFDM_RATE_9MB),
(IEEE80211_OFDM_RATE_12MB),
(IEEE80211_OFDM_RATE_18MB),
(IEEE80211_OFDM_RATE_24MB),
IEEE80211_OFDM_RATE_36MB,
IEEE80211_OFDM_RATE_48MB,
IEEE80211_OFDM_RATE_54MB};
int rtw_get_bit_value_from_ieee_value(u8 val)
{
unsigned char dot11_rate_table[]={2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, 0}; /* last element must be zero!! */
int i =0;
while (dot11_rate_table[i] != 0) {
if (dot11_rate_table[i] == val)
return BIT(i);
i++;
}
return 0;
}
uint rtw_is_cckrates_included(u8 *rate)
{
u32 i = 0;
while (rate[i]!=0) {
if ((((rate[i]) & 0x7f) == 2) || (((rate[i]) & 0x7f) == 4) ||
(((rate[i]) & 0x7f) == 11) || (((rate[i]) & 0x7f) == 22) )
return true;
i++;
}
return false;
}
uint rtw_is_cckratesonly_included(u8 *rate)
{
u32 i = 0;
while (rate[i]!=0) {
if ((((rate[i]) & 0x7f) != 2) && (((rate[i]) & 0x7f) != 4) &&
(((rate[i]) & 0x7f) != 11) && (((rate[i]) & 0x7f) != 22) )
return false;
i++;
}
return true;
}
int rtw_check_network_type(unsigned char *rate, int ratelen, int channel)
{
if (channel > 14)
{
if ((rtw_is_cckrates_included(rate)) == true)
return WIRELESS_INVALID;
else
return WIRELESS_11A;
}
else /* could be pure B, pure G, or B/G */
{
if ((rtw_is_cckratesonly_included(rate)) == true)
return WIRELESS_11B;
else if ((rtw_is_cckrates_included(rate)) == true)
return WIRELESS_11BG;
else
return WIRELESS_11G;
}
}
u8 *rtw_set_fixed_ie(unsigned char *pbuf, unsigned int len, unsigned char *source,
unsigned int *frlen)
{
memcpy((void *)pbuf, (void *)source, len);
*frlen = *frlen + len;
return (pbuf + len);
}
/* rtw_set_ie will update frame length */
u8 *rtw_set_ie
(
u8 *pbuf,
sint index,
uint len,
u8 *source,
uint *frlen /* frame length */
)
{
;
*pbuf = (u8)index;
*(pbuf + 1) = (u8)len;
if (len > 0)
memcpy((void *)(pbuf + 2), (void *)source, len);
*frlen = *frlen + (len + 2);
return (pbuf + len + 2);
;
}
inline u8 *rtw_set_ie_ch_switch (u8 *buf, u32 *buf_len, u8 ch_switch_mode,
u8 new_ch, u8 ch_switch_cnt)
{
u8 ie_data[3];
ie_data[0] = ch_switch_mode;
ie_data[1] = new_ch;
ie_data[2] = ch_switch_cnt;
return rtw_set_ie(buf, WLAN_EID_CHANNEL_SWITCH, 3, ie_data, buf_len);
}
inline u8 secondary_ch_offset_to_hal_ch_offset(u8 ch_offset)
{
if (ch_offset == SCN)
return HAL_PRIME_CHNL_OFFSET_DONT_CARE;
else if (ch_offset == SCA)
return HAL_PRIME_CHNL_OFFSET_UPPER;
else if (ch_offset == SCB)
return HAL_PRIME_CHNL_OFFSET_LOWER;
return HAL_PRIME_CHNL_OFFSET_DONT_CARE;
}
inline u8 hal_ch_offset_to_secondary_ch_offset(u8 ch_offset)
{
if (ch_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE)
return SCN;
else if (ch_offset == HAL_PRIME_CHNL_OFFSET_LOWER)
return SCB;
else if (ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER)
return SCA;
return SCN;
}
inline u8 *rtw_set_ie_secondary_ch_offset(u8 *buf, u32 *buf_len, u8 secondary_ch_offset)
{
return rtw_set_ie(buf, WLAN_EID_SECONDARY_CHANNEL_OFFSET, 1, &secondary_ch_offset, buf_len);
}
inline u8 *rtw_set_ie_mesh_ch_switch_parm(u8 *buf, u32 *buf_len, u8 ttl,
u8 flags, u16 reason, u16 precedence)
{
u8 ie_data[6];
ie_data[0] = ttl;
ie_data[1] = flags;
RTW_PUT_LE16((u8*)&ie_data[2], reason);
RTW_PUT_LE16((u8*)&ie_data[4], precedence);
return rtw_set_ie(buf, 0x118, 6, ie_data, buf_len);
}
/*----------------------------------------------------------------------------
index: the information element id index, limit is the limit for search
-----------------------------------------------------------------------------*/
u8 *rtw_get_ie(u8 *pbuf, sint index, sint *len, sint limit)
{
sint tmp, i;
u8 *p;
;
if (limit < 1) {
;
return NULL;
}
p = pbuf;
i = 0;
*len = 0;
while (1)
{
if (*p == index)
{
*len = *(p + 1);
return (p);
}
else
{
tmp = *(p + 1);
p += (tmp + 2);
i += (tmp + 2);
}
if (i >= limit)
break;
}
;
return NULL;
}
/**
* rtw_get_ie_ex - Search specific IE from a series of IEs
* @in_ie: Address of IEs to search
* @in_len: Length limit from in_ie
* @eid: Element ID to match
* @oui: OUI to match
* @oui_len: OUI length
* @ie: If not NULL and the specific IE is found, the IE will be copied to the buf starting from the specific IE
* @ielen: If not NULL and the specific IE is found, will set to the length of the entire IE
*
* Returns: The address of the specific IE found, or NULL
*/
u8 *rtw_get_ie_ex(u8 *in_ie, uint in_len, u8 eid, u8 *oui, u8 oui_len, u8 *ie, uint *ielen)
{
uint cnt;
u8 *target_ie = NULL;
if (ielen)
*ielen = 0;
if (!in_ie || in_len<=0)
return target_ie;
cnt = 0;
while (cnt<in_len)
{
if (eid == in_ie[cnt]
&& ( !oui || _rtw_memcmp(&in_ie[cnt+2], oui, oui_len) == true))
{
target_ie = &in_ie[cnt];
if (ie)
memcpy(ie, &in_ie[cnt], in_ie[cnt+1]+2);
if (ielen)
*ielen = in_ie[cnt+1]+2;
break;
}
else
{
cnt+=in_ie[cnt+1]+2; /* goto next */
}
}
return target_ie;
}
/**
* rtw_ies_remove_ie - Find matching IEs and remove
* @ies: Address of IEs to search
* @ies_len: Pointer of length of ies, will update to new length
* @offset: The offset to start scarch
* @eid: Element ID to match
* @oui: OUI to match
* @oui_len: OUI length
*
* Returns: _SUCCESS: ies is updated, _FAIL: not updated
*/
int rtw_ies_remove_ie(u8 *ies, uint *ies_len, uint offset, u8 eid, u8 *oui, u8 oui_len)
{
int ret = _FAIL;
u8 *target_ie;
u32 target_ielen;
u8 *start;
uint search_len;
if (!ies || !ies_len || *ies_len <= offset)
goto exit;
start = ies + offset;
search_len = *ies_len - offset;
while (1) {
target_ie = rtw_get_ie_ex(start, search_len, eid, oui, oui_len, NULL, &target_ielen);
if (target_ie && target_ielen) {
u8 buf[MAX_IE_SZ] = {0};
u8 *remain_ies = target_ie + target_ielen;
uint remain_len = search_len - (remain_ies - start);
memcpy(buf, remain_ies, remain_len);
memcpy(target_ie, buf, remain_len);
*ies_len = *ies_len - target_ielen;
ret = _SUCCESS;
start = target_ie;
search_len = remain_len;
} else {
break;
}
}
exit:
return ret;
}
void rtw_set_supported_rate(u8* SupportedRates, uint mode)
{
;
memset(SupportedRates, 0, NDIS_802_11_LENGTH_RATES_EX);
switch (mode)
{
case WIRELESS_11B:
memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN);
break;
case WIRELESS_11G:
case WIRELESS_11A:
case WIRELESS_11_5N:
case WIRELESS_11A_5N:/* Todo: no basic rate for ofdm ? */
memcpy(SupportedRates, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN);
break;
case WIRELESS_11BG:
case WIRELESS_11G_24N:
case WIRELESS_11_24N:
case WIRELESS_11BG_24N:
memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN);
memcpy(SupportedRates + IEEE80211_CCK_RATE_LEN, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN);
break;
}
;
}
uint rtw_get_rateset_len(u8 *rateset)
{
uint i = 0;
;
while (1)
{
if ((rateset[i]) == 0)
break;
if (i > 12)
break;
i++;
}
;
return i;
}
int rtw_generate_ie(struct registry_priv *pregistrypriv)
{
u8 wireless_mode;
int sz = 0, rateLen;
struct wlan_bssid_ex* pdev_network = &pregistrypriv->dev_network;
u8* ie = pdev_network->IEs;
;
/* timestamp will be inserted by hardware */
sz += 8;
ie += sz;
/* beacon interval : 2bytes */
*(__le16*)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod);/* BCN_INTERVAL; */
sz += 2;
ie += 2;
/* capability info */
*(u16*)ie = 0;
*(__le16*)ie |= cpu_to_le16(cap_IBSS);
if (pregistrypriv->preamble == PREAMBLE_SHORT)
*(__le16*)ie |= cpu_to_le16(cap_ShortPremble);
if (pdev_network->Privacy)
*(__le16*)ie |= cpu_to_le16(cap_Privacy);
sz += 2;
ie += 2;
/* SSID */
ie = rtw_set_ie(ie, _SSID_IE_, pdev_network->Ssid.SsidLength, pdev_network->Ssid.Ssid, &sz);
/* supported rates */
if (pregistrypriv->wireless_mode == WIRELESS_11ABGN)
{
if (pdev_network->Configuration.DSConfig > 14)
wireless_mode = WIRELESS_11A_5N;
else
wireless_mode = WIRELESS_11BG_24N;
}
else
{
wireless_mode = pregistrypriv->wireless_mode;
}
rtw_set_supported_rate(pdev_network->SupportedRates, wireless_mode) ;
rateLen = rtw_get_rateset_len(pdev_network->SupportedRates);
if (rateLen > 8)
{
ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, 8, pdev_network->SupportedRates, &sz);
/* ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz); */
}
else
{
ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, rateLen, pdev_network->SupportedRates, &sz);
}
/* DS parameter set */
ie = rtw_set_ie(ie, _DSSET_IE_, 1, (u8 *)&(pdev_network->Configuration.DSConfig), &sz);
/* IBSS Parameter Set */
ie = rtw_set_ie(ie, _IBSS_PARA_IE_, 2, (u8 *)&(pdev_network->Configuration.ATIMWindow), &sz);
if (rateLen > 8)
{
ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz);
}
/* HT Cap. */
if (((pregistrypriv->wireless_mode&WIRELESS_11_5N)||(pregistrypriv->wireless_mode&WIRELESS_11_24N))
&& (pregistrypriv->ht_enable ==true))
{
/* todo: */
}
/* return _SUCCESS; */
return sz;
}
unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit)
{
int len;
u16 val16;
__le16 le_tmp;
unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01};
u8 *pbuf = pie;
int limit_new = limit;
while (1)
{
pbuf = rtw_get_ie(pbuf, _WPA_IE_ID_, &len, limit_new);
if (pbuf) {
/* check if oui matches... */
if (_rtw_memcmp((pbuf + 2), wpa_oui_type, sizeof (wpa_oui_type)) == false) {
goto check_next_ie;
}
/* check version... */
memcpy((u8 *)&le_tmp, (pbuf + 6), sizeof(val16));
val16 = le16_to_cpu(le_tmp);
if (val16 != 0x0001)
goto check_next_ie;
*wpa_ie_len = *(pbuf + 1);
return pbuf;
}
else {
*wpa_ie_len = 0;
return NULL;
}
check_next_ie:
limit_new = limit - (pbuf - pie) - 2 - len;
if (limit_new <= 0)
break;
pbuf += (2 + len);
}
*wpa_ie_len = 0;
return NULL;
}
unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit)
{
return rtw_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit);
}
int rtw_get_wpa_cipher_suite(u8 *s)
{
if (_rtw_memcmp(s, WPA_CIPHER_SUITE_NONE, WPA_SELECTOR_LEN) == true)
return WPA_CIPHER_NONE;
if (_rtw_memcmp(s, WPA_CIPHER_SUITE_WEP40, WPA_SELECTOR_LEN) == true)
return WPA_CIPHER_WEP40;
if (_rtw_memcmp(s, WPA_CIPHER_SUITE_TKIP, WPA_SELECTOR_LEN) == true)
return WPA_CIPHER_TKIP;
if (_rtw_memcmp(s, WPA_CIPHER_SUITE_CCMP, WPA_SELECTOR_LEN) == true)
return WPA_CIPHER_CCMP;
if (_rtw_memcmp(s, WPA_CIPHER_SUITE_WEP104, WPA_SELECTOR_LEN) == true)
return WPA_CIPHER_WEP104;
return 0;
}
int rtw_get_wpa2_cipher_suite(u8 *s)
{
if (_rtw_memcmp(s, RSN_CIPHER_SUITE_NONE, RSN_SELECTOR_LEN) == true)
return WPA_CIPHER_NONE;
if (_rtw_memcmp(s, RSN_CIPHER_SUITE_WEP40, RSN_SELECTOR_LEN) == true)
return WPA_CIPHER_WEP40;
if (_rtw_memcmp(s, RSN_CIPHER_SUITE_TKIP, RSN_SELECTOR_LEN) == true)
return WPA_CIPHER_TKIP;
if (_rtw_memcmp(s, RSN_CIPHER_SUITE_CCMP, RSN_SELECTOR_LEN) == true)
return WPA_CIPHER_CCMP;
if (_rtw_memcmp(s, RSN_CIPHER_SUITE_WEP104, RSN_SELECTOR_LEN) == true)
return WPA_CIPHER_WEP104;
return 0;
}
int rtw_parse_wpa_ie(u8* wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
{
int i, ret =_SUCCESS;
int left, count;
u8 *pos;
u8 SUITE_1X[4] = {0x00, 0x50, 0xf2, 1};
if (wpa_ie_len <= 0) {
/* No WPA IE - fail silently */
return _FAIL;
}
if ((*wpa_ie != _WPA_IE_ID_) || (*(wpa_ie+1) != (u8)(wpa_ie_len - 2)) ||
(_rtw_memcmp(wpa_ie+2, RTW_WPA_OUI_TYPE, WPA_SELECTOR_LEN) != true) )
{
return _FAIL;
}
pos = wpa_ie;
pos += 8;
left = wpa_ie_len - 8;
/* group_cipher */
if (left >= WPA_SELECTOR_LEN) {
*group_cipher = rtw_get_wpa_cipher_suite(pos);
pos += WPA_SELECTOR_LEN;
left -= WPA_SELECTOR_LEN;
}
else if (left > 0)
{
RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __FUNCTION__, left));
return _FAIL;
}
/* pairwise_cipher */
if (left >= 2)
{
/* count = le16_to_cpu(*(u16*)pos); */
count = RTW_GET_LE16(pos);
pos += 2;
left -= 2;
if (count == 0 || left < count * WPA_SELECTOR_LEN) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), "
"count %u left %u", __FUNCTION__, count, left));
return _FAIL;
}
for (i = 0; i < count; i++)
{
*pairwise_cipher |= rtw_get_wpa_cipher_suite(pos);
pos += WPA_SELECTOR_LEN;
left -= WPA_SELECTOR_LEN;
}
}
else if (left == 1)
{
RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __FUNCTION__));
return _FAIL;
}
if (is_8021x) {
if (left >= 6) {
pos += 2;
if (_rtw_memcmp(pos, SUITE_1X, 4) == 1) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s : there has 802.1x auth\n", __FUNCTION__));
*is_8021x = 1;
}
}
}
return ret;
}
int rtw_parse_wpa2_ie(u8* rsn_ie, int rsn_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
{
int i, ret =_SUCCESS;
int left, count;
u8 *pos;
u8 SUITE_1X[4] = {0x00, 0x0f, 0xac, 0x01};
if (rsn_ie_len <= 0) {
/* No RSN IE - fail silently */
return _FAIL;
}
if ((*rsn_ie!= _WPA2_IE_ID_) || (*(rsn_ie+1) != (u8)(rsn_ie_len - 2)))
{
return _FAIL;
}
pos = rsn_ie;
pos += 4;
left = rsn_ie_len - 4;
/* group_cipher */
if (left >= RSN_SELECTOR_LEN) {
*group_cipher = rtw_get_wpa2_cipher_suite(pos);
pos += RSN_SELECTOR_LEN;
left -= RSN_SELECTOR_LEN;
} else if (left > 0) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __FUNCTION__, left));
return _FAIL;
}
/* pairwise_cipher */
if (left >= 2)
{
/* count = le16_to_cpu(*(u16*)pos); */
count = RTW_GET_LE16(pos);
pos += 2;
left -= 2;
if (count == 0 || left < count * RSN_SELECTOR_LEN) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), "
"count %u left %u", __FUNCTION__, count, left));
return _FAIL;
}
for (i = 0; i < count; i++)
{
*pairwise_cipher |= rtw_get_wpa2_cipher_suite(pos);
pos += RSN_SELECTOR_LEN;
left -= RSN_SELECTOR_LEN;
}
}
else if (left == 1)
{
RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __FUNCTION__));
return _FAIL;
}
if (is_8021x) {
if (left >= 6) {
pos += 2;
if (_rtw_memcmp(pos, SUITE_1X, 4) == 1) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s (): there has 802.1x auth\n", __FUNCTION__));
*is_8021x = 1;
}
}
}
return ret;
}
int rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie, u16 *wpa_len)
{
u8 authmode, sec_idx, i;
u8 wpa_oui[4]={0x0, 0x50, 0xf2, 0x01};
uint cnt;
/* Search required WPA or WPA2 IE and copy to sec_ie[ ] */
cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
sec_idx =0;
while (cnt<in_len)
{
authmode =in_ie[cnt];
if ((authmode ==_WPA_IE_ID_)&&(_rtw_memcmp(&in_ie[cnt+2], &wpa_oui[0], 4) ==true))
{
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n rtw_get_wpa_ie: sec_idx =%d in_ie[cnt+1]+2 =%d\n", sec_idx, in_ie[cnt+1]+2));
if (wpa_ie) {
memcpy(wpa_ie, &in_ie[cnt], in_ie[cnt+1]+2);
for (i =0;i<(in_ie[cnt+1]+2);i =i+8) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
wpa_ie[i], wpa_ie[i+1], wpa_ie[i+2], wpa_ie[i+3], wpa_ie[i+4],
wpa_ie[i+5], wpa_ie[i+6], wpa_ie[i+7]));
}
}
*wpa_len =in_ie[cnt+1]+2;
cnt+=in_ie[cnt+1]+2; /* get next */
}
else
{
if (authmode ==_WPA2_IE_ID_)
{
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n get_rsn_ie: sec_idx =%d in_ie[cnt+1]+2 =%d\n", sec_idx, in_ie[cnt+1]+2));
if (rsn_ie) {
memcpy(rsn_ie, &in_ie[cnt], in_ie[cnt+1]+2);
for (i =0;i<(in_ie[cnt+1]+2);i =i+8) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
rsn_ie[i], rsn_ie[i+1], rsn_ie[i+2], rsn_ie[i+3], rsn_ie[i+4],
rsn_ie[i+5], rsn_ie[i+6], rsn_ie[i+7]));
}
}
*rsn_len =in_ie[cnt+1]+2;
cnt+=in_ie[cnt+1]+2; /* get next */
}
else
{
cnt+=in_ie[cnt+1]+2; /* get next */
}
}
}
;
return (*rsn_len+*wpa_len);
}
u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen)
{
u8 match = false;
u8 eid, wps_oui[4]={0x0, 0x50, 0xf2, 0x04};
if (ie_ptr == NULL) return match;
eid = ie_ptr[0];
if ((eid ==_WPA_IE_ID_)&&(_rtw_memcmp(&ie_ptr[2], wps_oui, 4) ==true))
{
/* DBG_8192C("==> found WPS_IE.....\n"); */
*wps_ielen = ie_ptr[1]+2;
match =true;
}
return match;
}
u8 *rtw_get_wps_ie_from_scan_queue(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen, u8 frame_type)
{
u8* wps = NULL;
DBG_88E( "[%s] frame_type = %d\n", __FUNCTION__, frame_type );
switch ( frame_type )
{
case 1:
case 3:
{ /* Beacon or Probe Response */
wps = rtw_get_wps_ie(in_ie + _PROBERSP_IE_OFFSET_, in_len - _PROBERSP_IE_OFFSET_, wps_ie, wps_ielen);
break;
}
case 2:
{ /* Probe Request */
wps = rtw_get_wps_ie(in_ie + _PROBEREQ_IE_OFFSET_ , in_len - _PROBEREQ_IE_OFFSET_ , wps_ie, wps_ielen);
break;
}
}
return wps;
}
/**
* rtw_get_wps_ie - Search WPS IE from a series of IEs
* @in_ie: Address of IEs to search
* @in_len: Length limit from in_ie
* @wps_ie: If not NULL and WPS IE is found, WPS IE will be copied to the buf starting from wps_ie
* @wps_ielen: If not NULL and WPS IE is found, will set to the length of the entire WPS IE
*
* Returns: The address of the WPS IE found, or NULL
*/
u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen)
{
uint cnt;
u8 *wpsie_ptr = NULL;
u8 eid, wps_oui[4]={0x0, 0x50, 0xf2, 0x04};
if (wps_ielen)
*wps_ielen = 0;
if (!in_ie || in_len<=0)
return wpsie_ptr;
cnt = 0;
while (cnt<in_len)
{
eid = in_ie[cnt];
if ((eid ==_WPA_IE_ID_)&&(_rtw_memcmp(&in_ie[cnt+2], wps_oui, 4) ==true))
{
wpsie_ptr = &in_ie[cnt];
if (wps_ie)
memcpy(wps_ie, &in_ie[cnt], in_ie[cnt+1]+2);
if (wps_ielen)
*wps_ielen = in_ie[cnt+1]+2;
cnt+=in_ie[cnt+1]+2;
break;
}
else
{
cnt+=in_ie[cnt+1]+2; /* goto next */
}
}
return wpsie_ptr;
}
/**
* rtw_get_wps_attr - Search a specific WPS attribute from a given WPS IE
* @wps_ie: Address of WPS IE to search
* @wps_ielen: Length limit from wps_ie
* @target_attr_id: The attribute ID of WPS attribute to search
* @buf_attr: If not NULL and the WPS attribute is found, WPS attribute will be copied to the buf starting from buf_attr
* @len_attr: If not NULL and the WPS attribute is found, will set to the length of the entire WPS attribute
*
* Returns: the address of the specific WPS attribute found, or NULL
*/
u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_attr, u32 *len_attr)
{
u8 *attr_ptr = NULL;
u8 * target_attr_ptr = NULL;
u8 wps_oui[4]={0x00, 0x50, 0xF2, 0x04};
if (len_attr)
*len_attr = 0;
if ( ( wps_ie[0] != _VENDOR_SPECIFIC_IE_ ) ||
( _rtw_memcmp( wps_ie + 2, wps_oui , 4 ) != true ) )
{
return attr_ptr;
}
/* 6 = 1(Element ID) + 1(Length) + 4(WPS OUI) */
attr_ptr = wps_ie + 6; /* goto first attr */
while (attr_ptr - wps_ie < wps_ielen)
{
/* 4 = 2(Attribute ID) + 2(Length) */
u16 attr_id = RTW_GET_BE16(attr_ptr);
u16 attr_data_len = RTW_GET_BE16(attr_ptr + 2);
u16 attr_len = attr_data_len + 4;
/* DBG_88E("%s attr_ptr:%p, id:%u, length:%u\n", __FUNCTION__, attr_ptr, attr_id, attr_data_len); */
if ( attr_id == target_attr_id )
{
target_attr_ptr = attr_ptr;
if (buf_attr)
memcpy(buf_attr, attr_ptr, attr_len);
if (len_attr)
*len_attr = attr_len;
break;
}
else
{
attr_ptr += attr_len; /* goto next */
}
}
return target_attr_ptr;
}
/**
* rtw_get_wps_attr_content - Search a specific WPS attribute content from a given WPS IE
* @wps_ie: Address of WPS IE to search
* @wps_ielen: Length limit from wps_ie
* @target_attr_id: The attribute ID of WPS attribute to search
* @buf_content: If not NULL and the WPS attribute is found, WPS attribute content will be copied to the buf starting from buf_content
* @len_content: If not NULL and the WPS attribute is found, will set to the length of the WPS attribute content
*
* Returns: the address of the specific WPS attribute content found, or NULL
*/
u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_content, uint *len_content)
{
u8 *attr_ptr;
u32 attr_len;
if (len_content)
*len_content = 0;
attr_ptr = rtw_get_wps_attr(wps_ie, wps_ielen, target_attr_id, NULL, &attr_len);
if (attr_ptr && attr_len)
{
if (buf_content)
memcpy(buf_content, attr_ptr+4, attr_len-4);
if (len_content)
*len_content = attr_len-4;
return attr_ptr+4;
}
return NULL;
}
static int rtw_ieee802_11_parse_vendor_specific(u8 *pos, uint elen,
struct rtw_ieee802_11_elems *elems,
int show_errors)
{
unsigned int oui;
/* first 3 bytes in vendor specific information element are the IEEE
* OUI of the vendor. The following byte is used a vendor specific
* sub-type. */
if (elen < 4) {
if (show_errors) {
DBG_88E("short vendor specific "
"information element ignored (len =%lu)\n",
(unsigned long) elen);
}
return -1;
}
oui = RTW_GET_BE24(pos);
switch (oui) {
case OUI_MICROSOFT:
/* Microsoft/Wi-Fi information elements are further typed and
* subtyped */
switch (pos[3]) {
case 1:
/* Microsoft OUI (00:50:F2) with OUI Type 1:
* real WPA information element */
elems->wpa_ie = pos;
elems->wpa_ie_len = elen;
break;
case WME_OUI_TYPE: /* this is a Wi-Fi WME info. element */
if (elen < 5) {
DBG_88E("short WME "
"information element ignored "
"(len =%lu)\n",
(unsigned long) elen);
return -1;
}
switch (pos[4]) {
case WME_OUI_SUBTYPE_INFORMATION_ELEMENT:
case WME_OUI_SUBTYPE_PARAMETER_ELEMENT:
elems->wme = pos;
elems->wme_len = elen;
break;
case WME_OUI_SUBTYPE_TSPEC_ELEMENT:
elems->wme_tspec = pos;
elems->wme_tspec_len = elen;
break;
default:
DBG_88E("unknown WME "
"information element ignored "
"(subtype =%d len =%lu)\n",
pos[4], (unsigned long) elen);
return -1;
}
break;
case 4:
/* Wi-Fi Protected Setup (WPS) IE */
elems->wps_ie = pos;
elems->wps_ie_len = elen;
break;
default:
DBG_88E("Unknown Microsoft "
"information element ignored "
"(type =%d len =%lu)\n",
pos[3], (unsigned long) elen);
return -1;
}
break;
case OUI_BROADCOM:
switch (pos[3]) {
case VENDOR_HT_CAPAB_OUI_TYPE:
elems->vendor_ht_cap = pos;
elems->vendor_ht_cap_len = elen;
break;
default:
DBG_88E("Unknown Broadcom "
"information element ignored "
"(type =%d len =%lu)\n",
pos[3], (unsigned long) elen);
return -1;
}
break;
default:
DBG_88E("unknown vendor specific information "
"element ignored (vendor OUI %02x:%02x:%02x "
"len =%lu)\n",
pos[0], pos[1], pos[2], (unsigned long) elen);
return -1;
}
return 0;
}
/**
* ieee802_11_parse_elems - Parse information elements in management frames
* @start: Pointer to the start of IEs
* @len: Length of IE buffer in octets
* @elems: Data structure for parsed elements
* @show_errors: Whether to show parsing errors in debug log
* Returns: Parsing result
*/
enum ParseRes rtw_ieee802_11_parse_elems(u8 *start, uint len,
struct rtw_ieee802_11_elems *elems,
int show_errors)
{
uint left = len;
u8 *pos = start;
int unknown = 0;
memset(elems, 0, sizeof(*elems));
while (left >= 2) {
u8 id, elen;
id = *pos++;
elen = *pos++;
left -= 2;
if (elen > left) {
if (show_errors) {
DBG_88E("IEEE 802.11 element "
"parse failed (id =%d elen =%d "
"left =%lu)\n",
id, elen, (unsigned long) left);
}
return ParseFailed;
}
switch (id) {
case WLAN_EID_SSID:
elems->ssid = pos;
elems->ssid_len = elen;
break;
case WLAN_EID_SUPP_RATES:
elems->supp_rates = pos;
elems->supp_rates_len = elen;
break;
case WLAN_EID_FH_PARAMS:
elems->fh_params = pos;
elems->fh_params_len = elen;
break;
case WLAN_EID_DS_PARAMS:
elems->ds_params = pos;
elems->ds_params_len = elen;
break;
case WLAN_EID_CF_PARAMS:
elems->cf_params = pos;
elems->cf_params_len = elen;
break;
case WLAN_EID_TIM:
elems->tim = pos;
elems->tim_len = elen;
break;
case WLAN_EID_IBSS_PARAMS:
elems->ibss_params = pos;
elems->ibss_params_len = elen;
break;
case WLAN_EID_CHALLENGE:
elems->challenge = pos;
elems->challenge_len = elen;
break;
case WLAN_EID_ERP_INFO:
elems->erp_info = pos;
elems->erp_info_len = elen;
break;
case WLAN_EID_EXT_SUPP_RATES:
elems->ext_supp_rates = pos;
elems->ext_supp_rates_len = elen;
break;
case WLAN_EID_VENDOR_SPECIFIC:
if (rtw_ieee802_11_parse_vendor_specific(pos, elen,
elems,
show_errors))
unknown++;
break;
case WLAN_EID_RSN:
elems->rsn_ie = pos;
elems->rsn_ie_len = elen;
break;
case WLAN_EID_PWR_CAPABILITY:
elems->power_cap = pos;
elems->power_cap_len = elen;
break;
case WLAN_EID_SUPPORTED_CHANNELS:
elems->supp_channels = pos;
elems->supp_channels_len = elen;
break;
case WLAN_EID_MOBILITY_DOMAIN:
elems->mdie = pos;
elems->mdie_len = elen;
break;
case WLAN_EID_FAST_BSS_TRANSITION:
elems->ftie = pos;
elems->ftie_len = elen;
break;
case WLAN_EID_TIMEOUT_INTERVAL:
elems->timeout_int = pos;
elems->timeout_int_len = elen;
break;
case WLAN_EID_HT_CAP:
elems->ht_capabilities = pos;
elems->ht_capabilities_len = elen;
break;
case WLAN_EID_HT_OPERATION:
elems->ht_operation = pos;
elems->ht_operation_len = elen;
break;
default:
unknown++;
if (!show_errors)
break;
DBG_88E("IEEE 802.11 element parse "
"ignored unknown element (id =%d elen =%d)\n",
id, elen);
break;
}
left -= elen;
pos += elen;
}
if (left)
return ParseFailed;
return unknown ? ParseUnknown : ParseOK;
}
static u8 key_char2num(u8 ch);
static u8 key_char2num(u8 ch)
{
if ((ch>='0')&&(ch<='9'))
return ch - '0';
else if ((ch>='a')&&(ch<='f'))
return ch - 'a' + 10;
else if ((ch>='A')&&(ch<='F'))
return ch - 'A' + 10;
else
return 0xff;
}
u8 str_2char2num(u8 hch, u8 lch);
u8 str_2char2num(u8 hch, u8 lch)
{
return ((key_char2num(hch) * 10 ) + key_char2num(lch));
}
u8 key_2char2num(u8 hch, u8 lch);
u8 key_2char2num(u8 hch, u8 lch)
{
return ((key_char2num(hch) << 4) | key_char2num(lch));
}
u8 convert_ip_addr(u8 hch, u8 mch, u8 lch)
{
return ((key_char2num(hch) * 100) + (key_char2num(mch) * 10 ) + key_char2num(lch));
}
void rtw_macaddr_cfg(u8 *mac_addr)
{
u8 mac[ETH_ALEN];
if (mac_addr == NULL) return;
if ( rtw_initmac )
{ /* Users specify the mac address */
int jj, kk;
for ( jj = 0, kk = 0; jj < ETH_ALEN; jj++, kk += 3 )
{
mac[jj] = key_2char2num(rtw_initmac[kk], rtw_initmac[kk+ 1]);
}
memcpy(mac_addr, mac, ETH_ALEN);
}
else
{ /* Use the mac address stored in the Efuse */
memcpy(mac, mac_addr, ETH_ALEN);
}
if (((mac[0]== 0xff) &&(mac[1]== 0xff) && (mac[2]== 0xff) &&
(mac[3]== 0xff) && (mac[4]== 0xff) &&(mac[5]== 0xff)) ||
((mac[0]== 0x0) && (mac[1]== 0x0) && (mac[2]== 0x0) &&
(mac[3]== 0x0) && (mac[4]== 0x0) &&(mac[5]== 0x0)))
{
mac[0] = 0x00;
mac[1] = 0xe0;
mac[2] = 0x4c;
mac[3] = 0x87;
mac[4] = 0x00;
mac[5] = 0x00;
/* use default mac addresss */
memcpy(mac_addr, mac, ETH_ALEN);
DBG_88E("MAC Address from efuse error, assign default one !!!\n");
}
DBG_88E("rtw_macaddr_cfg MAC Address = "MAC_FMT"\n", MAC_ARG(mac_addr));
}
void dump_ies(u8 *buf, u32 buf_len)
{
u8* pos = (u8*)buf;
u8 id, len;
while (pos-buf<=buf_len) {
id = *pos;
len = *(pos+1);
DBG_88E("%s ID:%u, LEN:%u\n", __FUNCTION__, id, len);
dump_wps_ie(pos, len);
#ifdef CONFIG_P2P
dump_p2p_ie(pos, len);
#ifdef CONFIG_P2P
dump_wfd_ie(pos, len);
#endif
#endif
pos+=(2+len);
}
}
void dump_wps_ie(u8 *ie, u32 ie_len)
{
u8* pos = (u8*)ie;
u16 id;
u16 len;
u8 *wps_ie;
uint wps_ielen;
wps_ie = rtw_get_wps_ie(ie, ie_len, NULL, &wps_ielen);
if (wps_ie != ie || wps_ielen == 0)
return;
pos+=6;
while (pos-ie < ie_len) {
id = RTW_GET_BE16(pos);
len = RTW_GET_BE16(pos + 2);
DBG_88E("%s ID:0x%04x, LEN:%u\n", __FUNCTION__, id, len);
pos+=(4+len);
}
}
#ifdef CONFIG_P2P
/**
* rtw_get_p2p_merged_len - Get merged ie length from muitiple p2p ies.
* @in_ie: Pointer of the first p2p ie
* @in_len: Total len of muiltiple p2p ies
* Returns: Length of merged p2p ie length
*/
u32 rtw_get_p2p_merged_ies_len(u8 *in_ie, u32 in_len)
{
struct ndis_802_11_variable_ies * pIE;
u8 OUI[4] = { 0x50, 0x6f, 0x9a, 0x09 };
int i =0;
int j =0, len =0;
while ( i < in_len)
{
pIE = (struct ndis_802_11_variable_ies *)(in_ie+ i);
if ( pIE->ElementID == _VENDOR_SPECIFIC_IE_ && _rtw_memcmp(pIE->data, OUI, 4) )
{
len += pIE->Length-4; /* 4 is P2P OUI length, don't count it in this loop */
}
i += (pIE->Length + 2);
}
return len + 4; /* Append P2P OUI length at last. */
}
/**
* rtw_p2p_merge_ies - Merge muitiple p2p ies into one
* @in_ie: Pointer of the first p2p ie
* @in_len: Total len of muiltiple p2p ies
* @merge_ie: Pointer of merged ie
* Returns: Length of merged p2p ie
*/
int rtw_p2p_merge_ies(u8 *in_ie, u32 in_len, u8 *merge_ie)
{
struct ndis_802_11_variable_ies * pIE;
u8 len = 0;
u8 OUI[4] = { 0x50, 0x6f, 0x9a, 0x09 };
u8 ELOUI[6] = { 0xDD, 0x00, 0x50, 0x6f, 0x9a, 0x09 }; /* EID;Len;OUI, Len would copy at the end of function */
int i =0;
if ( merge_ie != NULL)
{
/* Set first P2P OUI */
memcpy(merge_ie, ELOUI, 6);
merge_ie += 6;
while ( i < in_len)
{
pIE = (struct ndis_802_11_variable_ies *)(in_ie+ i);
/* Take out the rest of P2P OUIs */
if ( pIE->ElementID == _VENDOR_SPECIFIC_IE_ && _rtw_memcmp(pIE->data, OUI, 4) )
{
memcpy( merge_ie, pIE->data +4, pIE->Length -4);
len += pIE->Length-4;
merge_ie += pIE->Length-4;
}
i += (pIE->Length + 2);
}
return len + 4; /* 4 is for P2P OUI */
}
return 0;
}
void dump_p2p_ie(u8 *ie, u32 ie_len) {
u8* pos = (u8*)ie;
u8 id;
u16 len;
u8 *p2p_ie;
uint p2p_ielen;
p2p_ie = rtw_get_p2p_ie(ie, ie_len, NULL, &p2p_ielen);
if (p2p_ie != ie || p2p_ielen == 0)
return;
pos+=6;
while (pos-ie < ie_len) {
id = *pos;
len = RTW_GET_LE16(pos+1);
DBG_88E("%s ID:%u, LEN:%u\n", __FUNCTION__, id, len);
pos+=(3+len);
}
}
u8 *rtw_get_p2p_ie_from_scan_queue(u8 *in_ie, int in_len, u8 *p2p_ie, uint *p2p_ielen, u8 frame_type)
{
u8* p2p = NULL;
DBG_88E( "[%s] frame_type = %d\n", __FUNCTION__, frame_type );
switch ( frame_type )
{
case 1:
case 3:
{ /* Beacon or Probe Response */
p2p = rtw_get_p2p_ie(in_ie + _PROBERSP_IE_OFFSET_, in_len - _PROBERSP_IE_OFFSET_, p2p_ie, p2p_ielen);
break;
}
case 2:
{ /* Probe Request */
p2p = rtw_get_p2p_ie(in_ie + _PROBEREQ_IE_OFFSET_ , in_len - _PROBEREQ_IE_OFFSET_ , p2p_ie, p2p_ielen);
break;
}
}
return p2p;
}
/**
* rtw_get_p2p_ie - Search P2P IE from a series of IEs
* @in_ie: Address of IEs to search
* @in_len: Length limit from in_ie
* @p2p_ie: If not NULL and P2P IE is found, P2P IE will be copied to the buf starting from p2p_ie
* @p2p_ielen: If not NULL and P2P IE is found, will set to the length of the entire P2P IE
*
* Returns: The address of the P2P IE found, or NULL
*/
u8 *rtw_get_p2p_ie(u8 *in_ie, int in_len, u8 *p2p_ie, uint *p2p_ielen)
{
uint cnt = 0;
u8 *p2p_ie_ptr;
u8 eid, p2p_oui[4]={0x50, 0x6F, 0x9A, 0x09};
if ( p2p_ielen != NULL )
*p2p_ielen = 0;
while (cnt<in_len)
{
eid = in_ie[cnt];
if ((in_len < 0) || (cnt > MAX_IE_SZ)) {
dump_stack();
return NULL;
}
if ( ( eid == _VENDOR_SPECIFIC_IE_ ) && ( _rtw_memcmp( &in_ie[cnt+2], p2p_oui, 4) == true ) )
{
p2p_ie_ptr = in_ie + cnt;
if ( p2p_ie != NULL )
{
memcpy( p2p_ie, &in_ie[ cnt ], in_ie[ cnt + 1 ] + 2 );
}
if ( p2p_ielen != NULL )
{
*p2p_ielen = in_ie[ cnt + 1 ] + 2;
}
return p2p_ie_ptr;
break;
}
else
{
cnt += in_ie[ cnt + 1 ] +2; /* goto next */
}
}
return NULL;
}
/**
* rtw_get_p2p_attr - Search a specific P2P attribute from a given P2P IE
* @p2p_ie: Address of P2P IE to search
* @p2p_ielen: Length limit from p2p_ie
* @target_attr_id: The attribute ID of P2P attribute to search
* @buf_attr: If not NULL and the P2P attribute is found, P2P attribute will be copied to the buf starting from buf_attr
* @len_attr: If not NULL and the P2P attribute is found, will set to the length of the entire P2P attribute
*
* Returns: the address of the specific WPS attribute found, or NULL
*/
u8 *rtw_get_p2p_attr(u8 *p2p_ie, uint p2p_ielen, u8 target_attr_id , u8 *buf_attr, u32 *len_attr)
{
u8 *attr_ptr = NULL;
u8 *target_attr_ptr = NULL;
u8 p2p_oui[4]={0x50, 0x6F, 0x9A, 0x09};
if (len_attr)
*len_attr = 0;
if ( !p2p_ie || ( p2p_ie[0] != _VENDOR_SPECIFIC_IE_ ) ||
( _rtw_memcmp( p2p_ie + 2, p2p_oui , 4 ) != true ) )
{
return attr_ptr;
}
/* 6 = 1(Element ID) + 1(Length) + 3 (OUI) + 1(OUI Type) */
attr_ptr = p2p_ie + 6; /* goto first attr */
while (attr_ptr - p2p_ie < p2p_ielen)
{
/* 3 = 1(Attribute ID) + 2(Length) */
u8 attr_id = *attr_ptr;
u16 attr_data_len = RTW_GET_LE16(attr_ptr + 1);
u16 attr_len = attr_data_len + 3;
/* DBG_88E("%s attr_ptr:%p, id:%u, length:%u\n", __FUNCTION__, attr_ptr, attr_id, attr_data_len); */
if ( attr_id == target_attr_id )
{
target_attr_ptr = attr_ptr;
if (buf_attr)
memcpy(buf_attr, attr_ptr, attr_len);
if (len_attr)
*len_attr = attr_len;
break;
}
else
{
attr_ptr += attr_len; /* goto next */
}
}
return target_attr_ptr;
}
/**
* rtw_get_p2p_attr_content - Search a specific P2P attribute content from a given P2P IE
* @p2p_ie: Address of P2P IE to search
* @p2p_ielen: Length limit from p2p_ie
* @target_attr_id: The attribute ID of P2P attribute to search
* @buf_content: If not NULL and the P2P attribute is found, P2P attribute content will be copied to the buf starting from buf_content
* @len_content: If not NULL and the P2P attribute is found, will set to the length of the P2P attribute content
*
* Returns: the address of the specific P2P attribute content found, or NULL
*/
u8 *rtw_get_p2p_attr_content(u8 *p2p_ie, uint p2p_ielen, u8 target_attr_id , u8 *buf_content, uint *len_content)
{
u8 *attr_ptr;
u32 attr_len;
if (len_content)
*len_content = 0;
attr_ptr = rtw_get_p2p_attr(p2p_ie, p2p_ielen, target_attr_id, NULL, &attr_len);
if (attr_ptr && attr_len)
{
if (buf_content)
memcpy(buf_content, attr_ptr+3, attr_len-3);
if (len_content)
*len_content = attr_len-3;
return attr_ptr+3;
}
return NULL;
}
u32 rtw_set_p2p_attr_content(u8 *pbuf, u8 attr_id, u16 attr_len, u8 *pdata_attr)
{
u32 a_len;
*pbuf = attr_id;
/* u16*)(pbuf + 1) = cpu_to_le16(attr_len); */
RTW_PUT_LE16(pbuf + 1, attr_len);
if (pdata_attr)
memcpy(pbuf + 3, pdata_attr, attr_len);
a_len = attr_len + 3;
return a_len;
}
static uint rtw_p2p_attr_remove(u8 *ie, uint ielen_ori, u8 attr_id)
{
u8 *target_attr;
u32 target_attr_len;
uint ielen = ielen_ori;
int index =0;
while (1) {
target_attr =rtw_get_p2p_attr(ie, ielen, attr_id, NULL, &target_attr_len);
if (target_attr && target_attr_len)
{
u8 *next_attr = target_attr+target_attr_len;
uint remain_len = ielen-(next_attr-ie);
memset(target_attr, 0, target_attr_len);
memcpy(target_attr, next_attr, remain_len);
memset(target_attr+remain_len, 0, target_attr_len);
*(ie+1) -= target_attr_len;
ielen-=target_attr_len;
}
else
{
break;
}
}
return ielen;
}
void rtw_wlan_bssid_ex_remove_p2p_attr(struct wlan_bssid_ex *bss_ex, u8 attr_id)
{
u8 *p2p_ie;
uint p2p_ielen, p2p_ielen_ori;
int cnt;
if ( (p2p_ie =rtw_get_p2p_ie(bss_ex->IEs+_FIXED_IE_LENGTH_, bss_ex->IELength-_FIXED_IE_LENGTH_, NULL, &p2p_ielen_ori)) )
{
p2p_ielen =rtw_p2p_attr_remove(p2p_ie, p2p_ielen_ori, attr_id);
if (p2p_ielen != p2p_ielen_ori) {
u8 *next_ie_ori = p2p_ie+p2p_ielen_ori;
u8 *next_ie = p2p_ie+p2p_ielen;
uint remain_len = bss_ex->IELength-(next_ie_ori-bss_ex->IEs);
memcpy(next_ie, next_ie_ori, remain_len);
memset(next_ie+remain_len, 0, p2p_ielen_ori-p2p_ielen);
bss_ex->IELength -= p2p_ielen_ori-p2p_ielen;
}
}
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_P2P
void dump_wfd_ie(u8 *ie, u32 ie_len)
{
u8* pos = (u8*)ie;
u8 id;
u16 len;
u8 *wfd_ie;
uint wfd_ielen;
if (rtw_get_wfd_ie(ie, ie_len, NULL, &wfd_ielen) == false)
return;
pos+=6;
while (pos-ie < ie_len) {
id = *pos;
len = RTW_GET_BE16(pos+1);
DBG_88E("%s ID:%u, LEN:%u\n", __FUNCTION__, id, len);
pos+=(3+len);
}
}
int rtw_get_wfd_ie(u8 *in_ie, int in_len, u8 *wfd_ie, uint *wfd_ielen)
{
int match;
uint cnt = 0;
u8 eid, wfd_oui[4]={0x50, 0x6F, 0x9A, 0x0A};
match =false;
if ( in_len < 0 )
{
return match;
}
while (cnt<in_len)
{
eid = in_ie[cnt];
if ( ( eid == _VENDOR_SPECIFIC_IE_ ) && ( _rtw_memcmp( &in_ie[cnt+2], wfd_oui, 4) == true ) )
{
if ( wfd_ie != NULL )
{
memcpy( wfd_ie, &in_ie[ cnt ], in_ie[ cnt + 1 ] + 2 );
}
else
{
if ( wfd_ielen != NULL )
{
*wfd_ielen = 0;
}
}
if ( wfd_ielen != NULL )
{
*wfd_ielen = in_ie[ cnt + 1 ] + 2;
}
cnt += in_ie[ cnt + 1 ] + 2;
match = true;
break;
}
else
{
cnt += in_ie[ cnt + 1 ] +2; /* goto next */
}
}
if ( match == true )
{
match = cnt;
}
return match;
}
int rtw_get_wfd_ie_from_scan_queue(u8 *in_ie, int in_len, u8 *wfd_ie, uint *wfd_ielen, u8 frame_type)
{
int match;
match =false;
DBG_88E( "[%s] frame_type = %d\n", __FUNCTION__, frame_type );
switch ( frame_type )
{
case 1:
case 3:
{ /* Beacon or Probe Response */
match = rtw_get_wfd_ie(in_ie + _PROBERSP_IE_OFFSET_, in_len - _PROBERSP_IE_OFFSET_, wfd_ie, wfd_ielen);
break;
}
case 2:
{ /* Probe Request */
match = rtw_get_wfd_ie(in_ie + _PROBEREQ_IE_OFFSET_ , in_len - _PROBEREQ_IE_OFFSET_ , wfd_ie, wfd_ielen);
break;
}
}
return match;
}
/* attr_content: The output buffer, contains the "body field" of WFD attribute. */
/* attr_contentlen: The data length of the "body field" of WFD attribute. */
int rtw_get_wfd_attr_content(u8 *wfd_ie, uint wfd_ielen, u8 target_attr_id , u8 *attr_content, uint *attr_contentlen)
{
int match;
uint cnt = 0;
u8 attr_id, wfd_oui[4]={0x50, 0x6F, 0x9A, 0x0A};
match =false;
if ( ( wfd_ie[ 0 ] != _VENDOR_SPECIFIC_IE_ ) ||
( _rtw_memcmp( wfd_ie + 2, wfd_oui , 4 ) != true ) )
{
return( match );
}
/* 1 ( WFD IE ) + 1 ( Length ) + 3 ( OUI ) + 1 ( OUI Type ) */
cnt = 6;
while ( cnt < wfd_ielen )
{
u16 attrlen = RTW_GET_BE16(wfd_ie + cnt + 1);
attr_id = wfd_ie[cnt];
if ( attr_id == target_attr_id )
{
/* 3 -> 1 byte for attribute ID field, 2 bytes for length field */
if (attr_content)
memcpy( attr_content, &wfd_ie[ cnt + 3 ], attrlen );
if (attr_contentlen)
*attr_contentlen = attrlen;
cnt += attrlen + 3;
match = true;
break;
}
else
{
cnt += attrlen + 3; /* goto next */
}
}
return match;
}
#endif /* CONFIG_P2P */
/* Baron adds to avoid FreeBSD warning */
int ieee80211_is_empty_essid(const char *essid, int essid_len)
{
/* Single white space is for Linksys APs */
if (essid_len == 1 && essid[0] == ' ')
return 1;
/* Otherwise, if the entire essid is 0, we assume it is hidden */
while (essid_len) {
essid_len--;
if (essid[essid_len] != '\0')
return 0;
}
return 1;
}
int ieee80211_get_hdrlen(u16 fc)
{
int hdrlen = 24;
switch (WLAN_FC_GET_TYPE(fc)) {
case RTW_IEEE80211_FTYPE_DATA:
if (fc & RTW_IEEE80211_STYPE_QOS_DATA)
hdrlen += 2;
if ((fc & RTW_IEEE80211_FCTL_FROMDS) && (fc & RTW_IEEE80211_FCTL_TODS))
hdrlen += 6; /* Addr4 */
break;
case RTW_IEEE80211_FTYPE_CTL:
switch (WLAN_FC_GET_STYPE(fc)) {
case RTW_IEEE80211_STYPE_CTS:
case RTW_IEEE80211_STYPE_ACK:
hdrlen = 10;
break;
default:
hdrlen = 16;
break;
}
break;
}
return hdrlen;
}
static int rtw_get_cipher_info(struct wlan_network *pnetwork)
{
u32 wpa_ielen;
unsigned char *pbuf;
int group_cipher = 0, pairwise_cipher = 0, is8021x = 0;
int ret = _FAIL;
pbuf = rtw_get_wpa_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
if (pbuf && (wpa_ielen>0)) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_cipher_info: wpa_ielen: %d", wpa_ielen));
if (_SUCCESS == rtw_parse_wpa_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
pnetwork->BcnInfo.group_cipher = group_cipher;
pnetwork->BcnInfo.is_8021x = is8021x;
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d, is_8021x is %d",
__func__, pnetwork->BcnInfo.pairwise_cipher, pnetwork->BcnInfo.is_8021x));
ret = _SUCCESS;
}
} else {
pbuf = rtw_get_wpa2_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
if (pbuf && (wpa_ielen>0)) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE\n"));
if (_SUCCESS == rtw_parse_wpa2_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE OK!!!\n"));
pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
pnetwork->BcnInfo.group_cipher = group_cipher;
pnetwork->BcnInfo.is_8021x = is8021x;
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d,"
"pnetwork->group_cipher is %d, is_8021x is %d", __func__, pnetwork->BcnInfo.pairwise_cipher,
pnetwork->BcnInfo.group_cipher, pnetwork->BcnInfo.is_8021x));
ret = _SUCCESS;
}
}
}
return ret;
}
void rtw_get_bcn_info(struct wlan_network *pnetwork)
{
unsigned short cap = 0;
u8 bencrypt = 0;
/* u8 wpa_ie[255], rsn_ie[255]; */
u16 wpa_len =0, rsn_len =0;
struct HT_info_element *pht_info = NULL;
struct ieee80211_ht_cap *pht_cap = NULL;
unsigned int len;
unsigned char *p;
__le16 le_tmp;
memcpy((u8 *)&le_tmp, rtw_get_capability_from_ie(pnetwork->network.IEs), 2);
cap = le16_to_cpu(le_tmp);
if (cap & WLAN_CAPABILITY_PRIVACY) {
bencrypt = 1;
pnetwork->network.Privacy = 1;
} else {
pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
}
rtw_get_sec_ie(pnetwork->network.IEs , pnetwork->network.IELength, NULL,&rsn_len, NULL,&wpa_len);
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
if (rsn_len > 0) {
pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2;
} else if (wpa_len > 0) {
pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA;
} else {
if (bencrypt)
pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP;
}
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
pnetwork->BcnInfo.encryp_protocol));
RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
pnetwork->BcnInfo.encryp_protocol));
rtw_get_cipher_info(pnetwork);
/* get bwmode and ch_offset */
/* parsing HT_CAP_IE */
p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
if (p && len>0) {
pht_cap = (struct ieee80211_ht_cap *)(p + 2);
pnetwork->BcnInfo.ht_cap_info = le16_to_cpu(pht_cap->cap_info);
} else {
pnetwork->BcnInfo.ht_cap_info = 0;
}
/* parsing HT_INFO_IE */
p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
if (p && len>0) {
pht_info = (struct HT_info_element *)(p + 2);
pnetwork->BcnInfo.ht_info_infos_0 = pht_info->infos[0];
} else {
pnetwork->BcnInfo.ht_info_infos_0 = 0;
}
}
/* show MCS rate, unit: 100Kbps */
u16 rtw_mcs_rate(u8 rf_type, u8 bw_40MHz, u8 short_GI_20, u8 short_GI_40, unsigned char * MCS_rate)
{
u16 max_rate = 0;
if (rf_type == RF_1T1R)
{
if (MCS_rate[0] & BIT(7))
max_rate = (bw_40MHz) ? ((short_GI_40)?1500:1350):((short_GI_20)?722:650);
else if (MCS_rate[0] & BIT(6))
max_rate = (bw_40MHz) ? ((short_GI_40)?1350:1215):((short_GI_20)?650:585);
else if (MCS_rate[0] & BIT(5))
max_rate = (bw_40MHz) ? ((short_GI_40)?1200:1080):((short_GI_20)?578:520);
else if (MCS_rate[0] & BIT(4))
max_rate = (bw_40MHz) ? ((short_GI_40)?900:810):((short_GI_20)?433:390);
else if (MCS_rate[0] & BIT(3))
max_rate = (bw_40MHz) ? ((short_GI_40)?600:540):((short_GI_20)?289:260);
else if (MCS_rate[0] & BIT(2))
max_rate = (bw_40MHz) ? ((short_GI_40)?450:405):((short_GI_20)?217:195);
else if (MCS_rate[0] & BIT(1))
max_rate = (bw_40MHz) ? ((short_GI_40)?300:270):((short_GI_20)?144:130);
else if (MCS_rate[0] & BIT(0))
max_rate = (bw_40MHz) ? ((short_GI_40)?150:135):((short_GI_20)?72:65);
}
else
{
if (MCS_rate[1])
{
if (MCS_rate[1] & BIT(7))
max_rate = (bw_40MHz) ? ((short_GI_40)?3000:2700):((short_GI_20)?1444:1300);
else if (MCS_rate[1] & BIT(6))
max_rate = (bw_40MHz) ? ((short_GI_40)?2700:2430):((short_GI_20)?1300:1170);
else if (MCS_rate[1] & BIT(5))
max_rate = (bw_40MHz) ? ((short_GI_40)?2400:2160):((short_GI_20)?1156:1040);
else if (MCS_rate[1] & BIT(4))
max_rate = (bw_40MHz) ? ((short_GI_40)?1800:1620):((short_GI_20)?867:780);
else if (MCS_rate[1] & BIT(3))
max_rate = (bw_40MHz) ? ((short_GI_40)?1200:1080):((short_GI_20)?578:520);
else if (MCS_rate[1] & BIT(2))
max_rate = (bw_40MHz) ? ((short_GI_40)?900:810):((short_GI_20)?433:390);
else if (MCS_rate[1] & BIT(1))
max_rate = (bw_40MHz) ? ((short_GI_40)?600:540):((short_GI_20)?289:260);
else if (MCS_rate[1] & BIT(0))
max_rate = (bw_40MHz) ? ((short_GI_40)?300:270):((short_GI_20)?144:130);
}
else
{
if (MCS_rate[0] & BIT(7))
max_rate = (bw_40MHz) ? ((short_GI_40)?1500:1350):((short_GI_20)?722:650);
else if (MCS_rate[0] & BIT(6))
max_rate = (bw_40MHz) ? ((short_GI_40)?1350:1215):((short_GI_20)?650:585);
else if (MCS_rate[0] & BIT(5))
max_rate = (bw_40MHz) ? ((short_GI_40)?1200:1080):((short_GI_20)?578:520);
else if (MCS_rate[0] & BIT(4))
max_rate = (bw_40MHz) ? ((short_GI_40)?900:810):((short_GI_20)?433:390);
else if (MCS_rate[0] & BIT(3))
max_rate = (bw_40MHz) ? ((short_GI_40)?600:540):((short_GI_20)?289:260);
else if (MCS_rate[0] & BIT(2))
max_rate = (bw_40MHz) ? ((short_GI_40)?450:405):((short_GI_20)?217:195);
else if (MCS_rate[0] & BIT(1))
max_rate = (bw_40MHz) ? ((short_GI_40)?300:270):((short_GI_20)?144:130);
else if (MCS_rate[0] & BIT(0))
max_rate = (bw_40MHz) ? ((short_GI_40)?150:135):((short_GI_20)?72:65);
}
}
return max_rate;
}
int rtw_action_frame_parse(const u8 *frame, u32 frame_len, u8* category, u8 *action)
{
const u8 *frame_body = frame + sizeof(struct rtw_ieee80211_hdr_3addr);
u16 fc;
u8 c, a;
fc = le16_to_cpu(((struct rtw_ieee80211_hdr_3addr *)frame)->frame_ctl);
if ((fc & (RTW_IEEE80211_FCTL_FTYPE|RTW_IEEE80211_FCTL_STYPE))
!= (RTW_IEEE80211_FTYPE_MGMT|RTW_IEEE80211_STYPE_ACTION)
)
{
return false;
}
c = frame_body[0];
switch (c) {
case RTW_WLAN_CATEGORY_P2P: /* vendor-specific */
break;
default:
a = frame_body[1];
}
if (category)
*category = c;
if (action)
*action = a;
return true;
}
static const char *_action_public_str[] = {
"ACT_PUB_BSSCOEXIST",
"ACT_PUB_DSE_ENABLE",
"ACT_PUB_DSE_DEENABLE",
"ACT_PUB_DSE_REG_LOCATION",
"ACT_PUB_EXT_CHL_SWITCH",
"ACT_PUB_DSE_MSR_REQ",
"ACT_PUB_DSE_MSR_RPRT",
"ACT_PUB_MP",
"ACT_PUB_DSE_PWR_CONSTRAINT",
"ACT_PUB_VENDOR",
"ACT_PUB_GAS_INITIAL_REQ",
"ACT_PUB_GAS_INITIAL_RSP",
"ACT_PUB_GAS_COMEBACK_REQ",
"ACT_PUB_GAS_COMEBACK_RSP",
"ACT_PUB_TDLS_DISCOVERY_RSP",
"ACT_PUB_LOCATION_TRACK",
"ACT_PUB_RSVD",
};
const char *action_public_str(u8 action)
{
action = (action >= ACT_PUBLIC_MAX) ? ACT_PUBLIC_MAX : action;
return _action_public_str[action];
}
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