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wl_cfgp2p.c
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wl_cfgp2p.c
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/*
* Linux cfgp2p driver
*
* Copyright (C) 1999-2014, Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
*
* As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module. An independent module is a module which is not
* derived from this software. The special exception does not apply to any
* modifications of the software.
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
* $Id: wl_cfgp2p.c 470093 2014-04-13 05:05:57Z $
*
*/
#include <typedefs.h>
#include <linuxver.h>
#include <osl.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/if_arp.h>
#include <asm/uaccess.h>
#include <bcmutils.h>
#include <bcmendian.h>
#include <proto/ethernet.h>
#include <proto/802.11.h>
#include <net/rtnetlink.h>
#include <wl_cfg80211.h>
#include <wl_cfgp2p.h>
#include <wldev_common.h>
#include <wl_android.h>
static s8 scanparambuf[WLC_IOCTL_SMLEN];
static s8 g_mgmt_ie_buf[2048];
static bool
wl_cfgp2p_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len, const u8 *oui, u32 oui_len, u8 type);
static u32
wl_cfgp2p_vndr_ie(struct bcm_cfg80211 *cfg, u8 *iebuf, s32 pktflag,
s8 *oui, s32 ie_id, s8 *data, s32 datalen, const s8* add_del_cmd);
static s32 wl_cfgp2p_cancel_listen(struct bcm_cfg80211 *cfg, struct net_device *ndev,
struct wireless_dev *wdev, bool notify);
#if defined(WL_ENABLE_P2P_IF)
static int wl_cfgp2p_start_xmit(struct sk_buff *skb, struct net_device *ndev);
static int wl_cfgp2p_do_ioctl(struct net_device *net, struct ifreq *ifr, int cmd);
static int wl_cfgp2p_if_open(struct net_device *net);
static int wl_cfgp2p_if_stop(struct net_device *net);
static const struct net_device_ops wl_cfgp2p_if_ops = {
.ndo_open = wl_cfgp2p_if_open,
.ndo_stop = wl_cfgp2p_if_stop,
.ndo_do_ioctl = wl_cfgp2p_do_ioctl,
.ndo_start_xmit = wl_cfgp2p_start_xmit,
};
#endif /* WL_ENABLE_P2P_IF */
bool wl_cfgp2p_is_pub_action(void *frame, u32 frame_len)
{
wifi_p2p_pub_act_frame_t *pact_frm;
if (frame == NULL)
return false;
pact_frm = (wifi_p2p_pub_act_frame_t *)frame;
if (frame_len < sizeof(wifi_p2p_pub_act_frame_t) -1)
return false;
if (pact_frm->category == P2P_PUB_AF_CATEGORY &&
pact_frm->action == P2P_PUB_AF_ACTION &&
pact_frm->oui_type == P2P_VER &&
memcmp(pact_frm->oui, P2P_OUI, sizeof(pact_frm->oui)) == 0) {
return true;
}
return false;
}
bool wl_cfgp2p_is_p2p_action(void *frame, u32 frame_len)
{
wifi_p2p_action_frame_t *act_frm;
if (frame == NULL)
return false;
act_frm = (wifi_p2p_action_frame_t *)frame;
if (frame_len < sizeof(wifi_p2p_action_frame_t) -1)
return false;
if (act_frm->category == P2P_AF_CATEGORY &&
act_frm->type == P2P_VER &&
memcmp(act_frm->OUI, P2P_OUI, DOT11_OUI_LEN) == 0) {
return true;
}
return false;
}
#define GAS_RESP_LEN 2
#define DOUBLE_TLV_BODY_OFF 4
#define GAS_RESP_OFFSET 4
#define GAS_CRESP_OFFSET 5
bool wl_cfgp2p_find_gas_subtype(u8 subtype, u8* data, u32 len)
{
bcm_tlv_t *ie = (bcm_tlv_t *)data;
u8 *frame = NULL;
u16 id, flen;
/* Skipped first ANQP Element, if frame has anqp elemnt */
ie = bcm_parse_tlvs(ie, (int)len, DOT11_MNG_ADVERTISEMENT_ID);
if (ie == NULL)
return false;
frame = (uint8 *)ie + ie->len + TLV_HDR_LEN + GAS_RESP_LEN;
id = ((u16) (((frame)[1] << 8) | (frame)[0]));
flen = ((u16) (((frame)[3] << 8) | (frame)[2]));
/* If the contents match the OUI and the type */
if (flen >= WFA_OUI_LEN + 1 &&
id == P2PSD_GAS_NQP_INFOID &&
!bcmp(&frame[DOUBLE_TLV_BODY_OFF], (const uint8*)WFA_OUI, WFA_OUI_LEN) &&
subtype == frame[DOUBLE_TLV_BODY_OFF+WFA_OUI_LEN]) {
return true;
}
return false;
}
bool wl_cfgp2p_is_gas_action(void *frame, u32 frame_len)
{
wifi_p2psd_gas_pub_act_frame_t *sd_act_frm;
if (frame == NULL)
return false;
sd_act_frm = (wifi_p2psd_gas_pub_act_frame_t *)frame;
if (frame_len < (sizeof(wifi_p2psd_gas_pub_act_frame_t) - 1))
return false;
if (sd_act_frm->category != P2PSD_ACTION_CATEGORY)
return false;
#ifdef WL11U
if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IRESP)
return wl_cfgp2p_find_gas_subtype(P2PSD_GAS_OUI_SUBTYPE,
(u8 *)sd_act_frm->query_data + GAS_RESP_OFFSET,
frame_len);
else if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_CRESP)
return wl_cfgp2p_find_gas_subtype(P2PSD_GAS_OUI_SUBTYPE,
(u8 *)sd_act_frm->query_data + GAS_CRESP_OFFSET,
frame_len);
else if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IREQ ||
sd_act_frm->action == P2PSD_ACTION_ID_GAS_CREQ)
return true;
else
return false;
#else
if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IREQ ||
sd_act_frm->action == P2PSD_ACTION_ID_GAS_IRESP ||
sd_act_frm->action == P2PSD_ACTION_ID_GAS_CREQ ||
sd_act_frm->action == P2PSD_ACTION_ID_GAS_CRESP)
return true;
else
return false;
#endif /* WL11U */
}
void wl_cfgp2p_print_actframe(bool tx, void *frame, u32 frame_len, u32 channel)
{
wifi_p2p_pub_act_frame_t *pact_frm;
wifi_p2p_action_frame_t *act_frm;
wifi_p2psd_gas_pub_act_frame_t *sd_act_frm;
if (!frame || frame_len <= 2)
return;
if (wl_cfgp2p_is_pub_action(frame, frame_len)) {
pact_frm = (wifi_p2p_pub_act_frame_t *)frame;
switch (pact_frm->subtype) {
case P2P_PAF_GON_REQ:
CFGP2P_ACTION(("%s P2P Group Owner Negotiation Req Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_GON_RSP:
CFGP2P_ACTION(("%s P2P Group Owner Negotiation Rsp Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_GON_CONF:
CFGP2P_ACTION(("%s P2P Group Owner Negotiation Confirm Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_INVITE_REQ:
CFGP2P_ACTION(("%s P2P Invitation Request Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_INVITE_RSP:
CFGP2P_ACTION(("%s P2P Invitation Response Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_DEVDIS_REQ:
CFGP2P_ACTION(("%s P2P Device Discoverability Request Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_DEVDIS_RSP:
CFGP2P_ACTION(("%s P2P Device Discoverability Response Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_PROVDIS_REQ:
CFGP2P_ACTION(("%s P2P Provision Discovery Request Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_PAF_PROVDIS_RSP:
CFGP2P_ACTION(("%s P2P Provision Discovery Response Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
default:
CFGP2P_ACTION(("%s Unknown P2P Public Action Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
}
} else if (wl_cfgp2p_is_p2p_action(frame, frame_len)) {
act_frm = (wifi_p2p_action_frame_t *)frame;
switch (act_frm->subtype) {
case P2P_AF_NOTICE_OF_ABSENCE:
CFGP2P_ACTION(("%s P2P Notice of Absence Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_AF_PRESENCE_REQ:
CFGP2P_ACTION(("%s P2P Presence Request Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_AF_PRESENCE_RSP:
CFGP2P_ACTION(("%s P2P Presence Response Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
case P2P_AF_GO_DISC_REQ:
CFGP2P_ACTION(("%s P2P Discoverability Request Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
break;
default:
CFGP2P_ACTION(("%s Unknown P2P Action Frame,"
" channel=%d\n", (tx)? "TX": "RX", channel));
}
} else if (wl_cfgp2p_is_gas_action(frame, frame_len)) {
sd_act_frm = (wifi_p2psd_gas_pub_act_frame_t *)frame;
switch (sd_act_frm->action) {
case P2PSD_ACTION_ID_GAS_IREQ:
CFGP2P_ACTION(("%s P2P GAS Initial Request,"
" channel=%d\n", (tx)? "TX" : "RX", channel));
break;
case P2PSD_ACTION_ID_GAS_IRESP:
CFGP2P_ACTION(("%s P2P GAS Initial Response,"
" channel=%d\n", (tx)? "TX" : "RX", channel));
break;
case P2PSD_ACTION_ID_GAS_CREQ:
CFGP2P_ACTION(("%s P2P GAS Comback Request,"
" channel=%d\n", (tx)? "TX" : "RX", channel));
break;
case P2PSD_ACTION_ID_GAS_CRESP:
CFGP2P_ACTION(("%s P2P GAS Comback Response,"
" channel=%d\n", (tx)? "TX" : "RX", channel));
break;
default:
CFGP2P_ACTION(("%s Unknown P2P GAS Frame,"
" channel=%d\n", (tx)? "TX" : "RX", channel));
}
}
}
/*
* Initialize variables related to P2P
*
*/
s32
wl_cfgp2p_init_priv(struct bcm_cfg80211 *cfg)
{
if (!(cfg->p2p = kzalloc(sizeof(struct p2p_info), GFP_KERNEL))) {
CFGP2P_ERR(("struct p2p_info allocation failed\n"));
return -ENOMEM;
}
#define INIT_IE(IE_TYPE, BSS_TYPE) \
do { \
memset(wl_to_p2p_bss_saved_ie(cfg, BSS_TYPE).p2p_ ## IE_TYPE ## _ie, 0, \
sizeof(wl_to_p2p_bss_saved_ie(cfg, BSS_TYPE).p2p_ ## IE_TYPE ## _ie)); \
wl_to_p2p_bss_saved_ie(cfg, BSS_TYPE).p2p_ ## IE_TYPE ## _ie_len = 0; \
} while (0);
INIT_IE(probe_req, P2PAPI_BSSCFG_PRIMARY);
INIT_IE(probe_res, P2PAPI_BSSCFG_PRIMARY);
INIT_IE(assoc_req, P2PAPI_BSSCFG_PRIMARY);
INIT_IE(assoc_res, P2PAPI_BSSCFG_PRIMARY);
INIT_IE(beacon, P2PAPI_BSSCFG_PRIMARY);
INIT_IE(probe_req, P2PAPI_BSSCFG_DEVICE);
INIT_IE(probe_res, P2PAPI_BSSCFG_DEVICE);
INIT_IE(assoc_req, P2PAPI_BSSCFG_DEVICE);
INIT_IE(assoc_res, P2PAPI_BSSCFG_DEVICE);
INIT_IE(beacon, P2PAPI_BSSCFG_DEVICE);
INIT_IE(probe_req, P2PAPI_BSSCFG_CONNECTION);
INIT_IE(probe_res, P2PAPI_BSSCFG_CONNECTION);
INIT_IE(assoc_req, P2PAPI_BSSCFG_CONNECTION);
INIT_IE(assoc_res, P2PAPI_BSSCFG_CONNECTION);
INIT_IE(beacon, P2PAPI_BSSCFG_CONNECTION);
#undef INIT_IE
wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_PRIMARY) = bcmcfg_to_prmry_ndev(cfg);
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_PRIMARY) = 0;
wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_DEVICE) = NULL;
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE) = 0;
wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_CONNECTION) = NULL;
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_CONNECTION) = 0;
return BCME_OK;
}
/*
* Deinitialize variables related to P2P
*
*/
void
wl_cfgp2p_deinit_priv(struct bcm_cfg80211 *cfg)
{
CFGP2P_DBG(("In\n"));
if (cfg->p2p) {
kfree(cfg->p2p);
cfg->p2p = NULL;
}
cfg->p2p_supported = 0;
}
/*
* Set P2P functions into firmware
*/
s32
wl_cfgp2p_set_firm_p2p(struct bcm_cfg80211 *cfg)
{
struct net_device *ndev = bcmcfg_to_prmry_ndev(cfg);
struct ether_addr null_eth_addr = { { 0, 0, 0, 0, 0, 0 } };
s32 ret = BCME_OK;
s32 val = 0;
/* Do we have to check whether APSTA is enabled or not ? */
ret = wldev_iovar_getint(ndev, "apsta", &val);
if (ret < 0) {
CFGP2P_ERR(("get apsta error %d\n", ret));
return ret;
}
if (val == 0) {
val = 1;
ret = wldev_ioctl(ndev, WLC_DOWN, &val, sizeof(s32), true);
if (ret < 0) {
CFGP2P_ERR(("WLC_DOWN error %d\n", ret));
return ret;
}
wldev_iovar_setint(ndev, "apsta", val);
ret = wldev_ioctl(ndev, WLC_UP, &val, sizeof(s32), true);
if (ret < 0) {
CFGP2P_ERR(("WLC_UP error %d\n", ret));
return ret;
}
}
/* In case of COB type, firmware has default mac address
* After Initializing firmware, we have to set current mac address to
* firmware for P2P device address
*/
ret = wldev_iovar_setbuf_bsscfg(ndev, "p2p_da_override", &null_eth_addr,
sizeof(null_eth_addr), cfg->ioctl_buf, WLC_IOCTL_MAXLEN, 0, &cfg->ioctl_buf_sync);
if (ret && ret != BCME_UNSUPPORTED) {
CFGP2P_ERR(("failed to update device address ret %d\n", ret));
}
return ret;
}
/* Create a new P2P BSS.
* Parameters:
* @mac : MAC address of the BSS to create
* @if_type : interface type: WL_P2P_IF_GO or WL_P2P_IF_CLIENT
* @chspec : chspec to use if creating a GO BSS.
* Returns 0 if success.
*/
s32
wl_cfgp2p_ifadd(struct bcm_cfg80211 *cfg, struct ether_addr *mac, u8 if_type,
chanspec_t chspec)
{
wl_p2p_if_t ifreq;
s32 err;
u32 scb_timeout = WL_SCB_TIMEOUT;
struct net_device *ndev = bcmcfg_to_prmry_ndev(cfg);
ifreq.type = if_type;
ifreq.chspec = chspec;
memcpy(ifreq.addr.octet, mac->octet, sizeof(ifreq.addr.octet));
CFGP2P_DBG(("---cfg p2p_ifadd "MACDBG" %s %u\n",
MAC2STRDBG(ifreq.addr.octet),
(if_type == WL_P2P_IF_GO) ? "go" : "client",
(chspec & WL_CHANSPEC_CHAN_MASK) >> WL_CHANSPEC_CHAN_SHIFT));
err = wldev_iovar_setbuf(ndev, "p2p_ifadd", &ifreq, sizeof(ifreq),
cfg->ioctl_buf, WLC_IOCTL_MAXLEN, &cfg->ioctl_buf_sync);
if (unlikely(err < 0))
printk("'cfg p2p_ifadd' error %d\n", err);
else if (if_type == WL_P2P_IF_GO) {
err = wldev_ioctl(ndev, WLC_SET_SCB_TIMEOUT, &scb_timeout, sizeof(u32), true);
if (unlikely(err < 0))
printk("'cfg scb_timeout' error %d\n", err);
}
return err;
}
/* Disable a P2P BSS.
* Parameters:
* @mac : MAC address of the BSS to disable
* Returns 0 if success.
*/
s32
wl_cfgp2p_ifdisable(struct bcm_cfg80211 *cfg, struct ether_addr *mac)
{
s32 ret;
struct net_device *netdev = bcmcfg_to_prmry_ndev(cfg);
CFGP2P_INFO(("------primary idx %d : cfg p2p_ifdis "MACDBG"\n",
netdev->ifindex, MAC2STRDBG(mac->octet)));
ret = wldev_iovar_setbuf(netdev, "p2p_ifdis", mac, sizeof(*mac),
cfg->ioctl_buf, WLC_IOCTL_MAXLEN, &cfg->ioctl_buf_sync);
if (unlikely(ret < 0)) {
printk("'cfg p2p_ifdis' error %d\n", ret);
}
return ret;
}
/* Delete a P2P BSS.
* Parameters:
* @mac : MAC address of the BSS to delete
* Returns 0 if success.
*/
s32
wl_cfgp2p_ifdel(struct bcm_cfg80211 *cfg, struct ether_addr *mac)
{
s32 ret;
struct net_device *netdev = bcmcfg_to_prmry_ndev(cfg);
CFGP2P_INFO(("------primary idx %d : cfg p2p_ifdel "MACDBG"\n",
netdev->ifindex, MAC2STRDBG(mac->octet)));
ret = wldev_iovar_setbuf(netdev, "p2p_ifdel", mac, sizeof(*mac),
cfg->ioctl_buf, WLC_IOCTL_MAXLEN, &cfg->ioctl_buf_sync);
if (unlikely(ret < 0)) {
printk("'cfg p2p_ifdel' error %d\n", ret);
}
return ret;
}
/* Change a P2P Role.
* Parameters:
* @mac : MAC address of the BSS to change a role
* Returns 0 if success.
*/
s32
wl_cfgp2p_ifchange(struct bcm_cfg80211 *cfg, struct ether_addr *mac, u8 if_type,
chanspec_t chspec)
{
wl_p2p_if_t ifreq;
s32 err;
u32 scb_timeout = WL_SCB_TIMEOUT;
struct net_device *netdev = wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_CONNECTION);
ifreq.type = if_type;
ifreq.chspec = chspec;
memcpy(ifreq.addr.octet, mac->octet, sizeof(ifreq.addr.octet));
CFGP2P_INFO(("---cfg p2p_ifchange "MACDBG" %s %u"
" chanspec 0x%04x\n", MAC2STRDBG(ifreq.addr.octet),
(if_type == WL_P2P_IF_GO) ? "go" : "client",
(chspec & WL_CHANSPEC_CHAN_MASK) >> WL_CHANSPEC_CHAN_SHIFT,
ifreq.chspec));
err = wldev_iovar_setbuf(netdev, "p2p_ifupd", &ifreq, sizeof(ifreq),
cfg->ioctl_buf, WLC_IOCTL_MAXLEN, &cfg->ioctl_buf_sync);
if (unlikely(err < 0)) {
printk("'cfg p2p_ifupd' error %d\n", err);
} else if (if_type == WL_P2P_IF_GO) {
err = wldev_ioctl(netdev, WLC_SET_SCB_TIMEOUT, &scb_timeout, sizeof(u32), true);
if (unlikely(err < 0))
printk("'cfg scb_timeout' error %d\n", err);
}
return err;
}
/* Get the index of a created P2P BSS.
* Parameters:
* @mac : MAC address of the created BSS
* @index : output: index of created BSS
* Returns 0 if success.
*/
s32
wl_cfgp2p_ifidx(struct bcm_cfg80211 *cfg, struct ether_addr *mac, s32 *index)
{
s32 ret;
u8 getbuf[64];
struct net_device *dev = bcmcfg_to_prmry_ndev(cfg);
CFGP2P_INFO(("---cfg p2p_if "MACDBG"\n", MAC2STRDBG(mac->octet)));
ret = wldev_iovar_getbuf_bsscfg(dev, "p2p_if", mac, sizeof(*mac), getbuf,
sizeof(getbuf), wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_PRIMARY), NULL);
if (ret == 0) {
memcpy(index, getbuf, sizeof(s32));
CFGP2P_INFO(("---cfg p2p_if ==> %d\n", *index));
}
return ret;
}
static s32
wl_cfgp2p_set_discovery(struct bcm_cfg80211 *cfg, s32 on)
{
s32 ret = BCME_OK;
struct net_device *ndev = bcmcfg_to_prmry_ndev(cfg);
CFGP2P_DBG(("enter\n"));
ret = wldev_iovar_setint(ndev, "p2p_disc", on);
if (unlikely(ret < 0)) {
CFGP2P_ERR(("p2p_disc %d error %d\n", on, ret));
}
return ret;
}
/* Set the WL driver's P2P mode.
* Parameters :
* @mode : is one of WL_P2P_DISC_ST_{SCAN,LISTEN,SEARCH}.
* @channel : the channel to listen
* @listen_ms : the time (milli seconds) to wait
* @bssidx : bss index for BSSCFG
* Returns 0 if success
*/
s32
wl_cfgp2p_set_p2p_mode(struct bcm_cfg80211 *cfg, u8 mode, u32 channel, u16 listen_ms, int bssidx)
{
wl_p2p_disc_st_t discovery_mode;
s32 ret;
struct net_device *dev;
CFGP2P_DBG(("enter\n"));
if (unlikely(bssidx == WL_INVALID)) {
CFGP2P_ERR((" %d index out of range\n", bssidx));
return -1;
}
dev = wl_cfgp2p_find_ndev(cfg, bssidx);
if (unlikely(dev == NULL)) {
CFGP2P_ERR(("bssidx %d is not assigned\n", bssidx));
return BCME_NOTFOUND;
}
/* Put the WL driver into P2P Listen Mode to respond to P2P probe reqs */
discovery_mode.state = mode;
discovery_mode.chspec = wl_ch_host_to_driver(channel);
discovery_mode.dwell = listen_ms;
ret = wldev_iovar_setbuf_bsscfg(dev, "p2p_state", &discovery_mode,
sizeof(discovery_mode), cfg->ioctl_buf, WLC_IOCTL_MAXLEN,
bssidx, &cfg->ioctl_buf_sync);
return ret;
}
/* Get the index of the P2P Discovery BSS */
static s32
wl_cfgp2p_get_disc_idx(struct bcm_cfg80211 *cfg, s32 *index)
{
s32 ret;
struct net_device *dev = wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_PRIMARY);
ret = wldev_iovar_getint(dev, "p2p_dev", index);
CFGP2P_INFO(("p2p_dev bsscfg_idx=%d ret=%d\n", *index, ret));
if (unlikely(ret < 0)) {
CFGP2P_ERR(("'p2p_dev' error %d\n", ret));
return ret;
}
return ret;
}
s32
wl_cfgp2p_init_discovery(struct bcm_cfg80211 *cfg)
{
s32 index = 0;
s32 ret = BCME_OK;
CFGP2P_DBG(("enter\n"));
if (wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE) != 0) {
CFGP2P_ERR(("do nothing, already initialized\n"));
return ret;
}
ret = wl_cfgp2p_set_discovery(cfg, 1);
if (ret < 0) {
CFGP2P_ERR(("set discover error\n"));
return ret;
}
/* Enable P2P Discovery in the WL Driver */
ret = wl_cfgp2p_get_disc_idx(cfg, &index);
if (ret < 0) {
return ret;
}
wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_DEVICE) =
wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_PRIMARY);
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE) = index;
/* Set the initial discovery state to SCAN */
ret = wl_cfgp2p_set_p2p_mode(cfg, WL_P2P_DISC_ST_SCAN, 0, 0,
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE));
if (unlikely(ret != 0)) {
CFGP2P_ERR(("unable to set WL_P2P_DISC_ST_SCAN\n"));
wl_cfgp2p_set_discovery(cfg, 0);
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE) = 0;
wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_DEVICE) = NULL;
return 0;
}
return ret;
}
/* Deinitialize P2P Discovery
* Parameters :
* @cfg : wl_private data
* Returns 0 if succes
*/
static s32
wl_cfgp2p_deinit_discovery(struct bcm_cfg80211 *cfg)
{
s32 ret = BCME_OK;
CFGP2P_DBG(("enter\n"));
if (wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE) == 0) {
CFGP2P_ERR(("do nothing, not initialized\n"));
return -1;
}
/* Set the discovery state to SCAN */
ret = wl_cfgp2p_set_p2p_mode(cfg, WL_P2P_DISC_ST_SCAN, 0, 0,
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE));
/* Disable P2P discovery in the WL driver (deletes the discovery BSSCFG) */
ret = wl_cfgp2p_set_discovery(cfg, 0);
/* Clear our saved WPS and P2P IEs for the discovery BSS. The driver
* deleted these IEs when wl_cfgp2p_set_discovery() deleted the discovery
* BSS.
*/
/* Clear the saved bsscfg index of the discovery BSSCFG to indicate we
* have no discovery BSS.
*/
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE) = WL_INVALID;
wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_DEVICE) = NULL;
return ret;
}
/* Enable P2P Discovery
* Parameters:
* @cfg : wl_private data
* @ie : probe request ie (WPS IE + P2P IE)
* @ie_len : probe request ie length
* Returns 0 if success.
*/
s32
wl_cfgp2p_enable_discovery(struct bcm_cfg80211 *cfg, struct net_device *dev,
const u8 *ie, u32 ie_len)
{
s32 ret = BCME_OK;
s32 bssidx;
if (wl_get_p2p_status(cfg, DISCOVERY_ON)) {
CFGP2P_INFO((" DISCOVERY is already initialized, we have nothing to do\n"));
goto set_ie;
}
wl_set_p2p_status(cfg, DISCOVERY_ON);
CFGP2P_DBG(("enter\n"));
ret = wl_cfgp2p_init_discovery(cfg);
if (unlikely(ret < 0)) {
CFGP2P_ERR((" init discovery error %d\n", ret));
goto exit;
}
/* Set wsec to any non-zero value in the discovery bsscfg to ensure our
* P2P probe responses have the privacy bit set in the 802.11 WPA IE.
* Some peer devices may not initiate WPS with us if this bit is not set.
*/
ret = wldev_iovar_setint_bsscfg(wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_DEVICE),
"wsec", AES_ENABLED, wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE));
if (unlikely(ret < 0)) {
CFGP2P_ERR((" wsec error %d\n", ret));
}
set_ie:
if (ie_len) {
if (bcmcfg_to_prmry_ndev(cfg) == dev) {
bssidx = wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE);
} else if (wl_cfgp2p_find_idx(cfg, dev, &bssidx) != BCME_OK) {
WL_ERR(("Find p2p index from dev(%p) failed\n", dev));
return BCME_ERROR;
}
ret = wl_cfgp2p_set_management_ie(cfg, dev,
bssidx,
VNDR_IE_PRBREQ_FLAG, ie, ie_len);
if (unlikely(ret < 0)) {
CFGP2P_ERR(("set probreq ie occurs error %d\n", ret));
goto exit;
}
}
exit:
return ret;
}
/* Disable P2P Discovery
* Parameters:
* @cfg : wl_private_data
* Returns 0 if success.
*/
s32
wl_cfgp2p_disable_discovery(struct bcm_cfg80211 *cfg)
{
s32 ret = BCME_OK;
CFGP2P_DBG((" enter\n"));
if (!cfg || !(cfg->p2p_supported)) {
ret = BCME_NOTUP;
goto exit;
}
wl_clr_p2p_status(cfg, DISCOVERY_ON);
if (wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE) == 0) {
CFGP2P_ERR((" do nothing, not initialized\n"));
goto exit;
}
ret = wl_cfgp2p_set_p2p_mode(cfg, WL_P2P_DISC_ST_SCAN, 0, 0,
wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE));
if (unlikely(ret < 0)) {
CFGP2P_ERR(("unable to set WL_P2P_DISC_ST_SCAN\n"));
}
/* Do a scan abort to stop the driver's scan engine in case it is still
* waiting out an action frame tx dwell time.
*/
wl_clr_p2p_status(cfg, DISCOVERY_ON);
ret = wl_cfgp2p_deinit_discovery(cfg);
exit:
return ret;
}
s32
wl_cfgp2p_escan(struct bcm_cfg80211 *cfg, struct net_device *dev, u16 active,
u32 num_chans, u16 *channels,
s32 search_state, u16 action, u32 bssidx, struct ether_addr *tx_dst_addr,
p2p_scan_purpose_t p2p_scan_purpose)
{
s32 ret = BCME_OK;
s32 memsize;
s32 eparams_size;
u32 i;
s8 *memblk;
wl_p2p_scan_t *p2p_params;
wl_escan_params_t *eparams;
wlc_ssid_t ssid;
/* Scan parameters */
#define P2PAPI_SCAN_NPROBES 1
#define P2PAPI_SCAN_DWELL_TIME_MS 80
#define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40
#define P2PAPI_SCAN_HOME_TIME_MS 60
#define P2PAPI_SCAN_NPROBS_TIME_MS 30
#define P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS 100
struct net_device *pri_dev = wl_to_p2p_bss_ndev(cfg, P2PAPI_BSSCFG_PRIMARY);
/* Allocate scan params which need space for 3 channels and 0 ssids */
eparams_size = (WL_SCAN_PARAMS_FIXED_SIZE +
OFFSETOF(wl_escan_params_t, params)) +
num_chans * sizeof(eparams->params.channel_list[0]);
memsize = sizeof(wl_p2p_scan_t) + eparams_size;
memblk = scanparambuf;
if (memsize > sizeof(scanparambuf)) {
CFGP2P_ERR((" scanpar buf too small (%u > %zu)\n",
memsize, sizeof(scanparambuf)));
return -1;
}
memset(memblk, 0, memsize);
memset(cfg->ioctl_buf, 0, WLC_IOCTL_MAXLEN);
if (search_state == WL_P2P_DISC_ST_SEARCH) {
/*
* If we in SEARCH STATE, we don't need to set SSID explictly
* because dongle use P2P WILDCARD internally by default
*/
wl_cfgp2p_set_p2p_mode(cfg, WL_P2P_DISC_ST_SEARCH, 0, 0, bssidx);
/* use null ssid */
ssid.SSID_len = 0;
memset(&ssid.SSID, 0, sizeof(ssid.SSID));
} else if (search_state == WL_P2P_DISC_ST_SCAN) {
/* SCAN STATE 802.11 SCAN
* WFD Supplicant has p2p_find command with (type=progressive, type= full)
* So if P2P_find command with type=progressive,
* we have to set ssid to P2P WILDCARD because
* we just do broadcast scan unless setting SSID
*/
wl_cfgp2p_set_p2p_mode(cfg, WL_P2P_DISC_ST_SCAN, 0, 0, bssidx);
/* use wild card ssid */
ssid.SSID_len = WL_P2P_WILDCARD_SSID_LEN;
memset(&ssid.SSID, 0, sizeof(ssid.SSID));
memcpy(&ssid.SSID, WL_P2P_WILDCARD_SSID, WL_P2P_WILDCARD_SSID_LEN);
} else {
CFGP2P_ERR((" invalid search state %d\n", search_state));
return -1;
}
/* Fill in the P2P scan structure at the start of the iovar param block */
p2p_params = (wl_p2p_scan_t*) memblk;
p2p_params->type = 'E';
/* Fill in the Scan structure that follows the P2P scan structure */
eparams = (wl_escan_params_t*) (p2p_params + 1);
eparams->params.bss_type = DOT11_BSSTYPE_ANY;
if (active)
eparams->params.scan_type = DOT11_SCANTYPE_ACTIVE;
else
eparams->params.scan_type = DOT11_SCANTYPE_PASSIVE;
if (tx_dst_addr == NULL)
memcpy(&eparams->params.bssid, ðer_bcast, ETHER_ADDR_LEN);
else
memcpy(&eparams->params.bssid, tx_dst_addr, ETHER_ADDR_LEN);
if (ssid.SSID_len)
memcpy(&eparams->params.ssid, &ssid, sizeof(wlc_ssid_t));
eparams->params.home_time = htod32(P2PAPI_SCAN_HOME_TIME_MS);
switch (p2p_scan_purpose) {
case P2P_SCAN_SOCIAL_CHANNEL:
eparams->params.active_time = htod32(P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS);
break;
case P2P_SCAN_AFX_PEER_NORMAL:
case P2P_SCAN_AFX_PEER_REDUCED:
eparams->params.active_time = htod32(P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS);
break;
case P2P_SCAN_CONNECT_TRY:
eparams->params.active_time = htod32(WL_SCAN_CONNECT_DWELL_TIME_MS);
break;
default :
if (wl_get_drv_status_all(cfg, CONNECTED))
eparams->params.active_time = -1;
else
eparams->params.active_time = htod32(P2PAPI_SCAN_DWELL_TIME_MS);
break;
}
if (p2p_scan_purpose == P2P_SCAN_CONNECT_TRY)
eparams->params.nprobes = htod32(eparams->params.active_time /
WL_SCAN_JOIN_PROBE_INTERVAL_MS);
else
eparams->params.nprobes = htod32((eparams->params.active_time /
P2PAPI_SCAN_NPROBS_TIME_MS));
if (eparams->params.nprobes <= 0)
eparams->params.nprobes = 1;
CFGP2P_DBG(("nprobes # %d, active_time %d\n",
eparams->params.nprobes, eparams->params.active_time));
eparams->params.passive_time = htod32(-1);
eparams->params.channel_num = htod32((0 << WL_SCAN_PARAMS_NSSID_SHIFT) |
(num_chans & WL_SCAN_PARAMS_COUNT_MASK));
for (i = 0; i < num_chans; i++) {
eparams->params.channel_list[i] = wl_ch_host_to_driver(channels[i]);
}
eparams->version = htod32(ESCAN_REQ_VERSION);
eparams->action = htod16(action);
wl_escan_set_sync_id(eparams->sync_id, cfg);
wl_escan_set_type(cfg, WL_SCANTYPE_P2P);
CFGP2P_INFO(("SCAN CHANNELS : "));
for (i = 0; i < num_chans; i++) {
if (i == 0) CFGP2P_INFO(("%d", channels[i]));
else CFGP2P_INFO((",%d", channels[i]));
}
CFGP2P_INFO(("\n"));
ret = wldev_iovar_setbuf_bsscfg(pri_dev, "p2p_scan",
memblk, memsize, cfg->ioctl_buf, WLC_IOCTL_MAXLEN, bssidx, &cfg->ioctl_buf_sync);
if (ret == BCME_OK)
wl_set_p2p_status(cfg, SCANNING);
return ret;
}
/* search function to reach at common channel to send action frame
* Parameters:
* @cfg : wl_private data
* @ndev : net device for bssidx
* @bssidx : bssidx for BSS
* Returns 0 if success.
*/
s32
wl_cfgp2p_act_frm_search(struct bcm_cfg80211 *cfg, struct net_device *ndev,
s32 bssidx, s32 channel, struct ether_addr *tx_dst_addr)
{
s32 ret = 0;
u32 chan_cnt = 0;
u16 *default_chan_list = NULL;
p2p_scan_purpose_t p2p_scan_purpose = P2P_SCAN_AFX_PEER_NORMAL;
if (!p2p_is_on(cfg) || ndev == NULL || bssidx == WL_INVALID)
return -BCME_ERROR;
WL_TRACE_HW4((" Enter\n"));
if (bssidx == wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_PRIMARY))
bssidx = wl_to_p2p_bss_bssidx(cfg, P2PAPI_BSSCFG_DEVICE);
if (channel)
chan_cnt = AF_PEER_SEARCH_CNT;
else
chan_cnt = SOCIAL_CHAN_CNT;
default_chan_list = kzalloc(chan_cnt * sizeof(*default_chan_list), GFP_KERNEL);
if (default_chan_list == NULL) {
CFGP2P_ERR(("channel list allocation failed \n"));
ret = -ENOMEM;
goto exit;
}
if (channel) {
u32 i;
/* insert same channel to the chan_list */
for (i = 0; i < chan_cnt; i++) {
default_chan_list[i] = channel;
}
} else {
default_chan_list[0] = SOCIAL_CHAN_1;
default_chan_list[1] = SOCIAL_CHAN_2;
default_chan_list[2] = SOCIAL_CHAN_3;
}
ret = wl_cfgp2p_escan(cfg, ndev, true, chan_cnt,
default_chan_list, WL_P2P_DISC_ST_SEARCH,
WL_SCAN_ACTION_START, bssidx, NULL, p2p_scan_purpose);
kfree(default_chan_list);
exit:
return ret;
}
/* Check whether pointed-to IE looks like WPA. */
#define wl_cfgp2p_is_wpa_ie(ie, tlvs, len) wl_cfgp2p_has_ie(ie, tlvs, len, \
(const uint8 *)WPS_OUI, WPS_OUI_LEN, WPA_OUI_TYPE)
/* Check whether pointed-to IE looks like WPS. */
#define wl_cfgp2p_is_wps_ie(ie, tlvs, len) wl_cfgp2p_has_ie(ie, tlvs, len, \
(const uint8 *)WPS_OUI, WPS_OUI_LEN, WPS_OUI_TYPE)
/* Check whether the given IE looks like WFA P2P IE. */
#define wl_cfgp2p_is_p2p_ie(ie, tlvs, len) wl_cfgp2p_has_ie(ie, tlvs, len, \
(const uint8 *)WFA_OUI, WFA_OUI_LEN, WFA_OUI_TYPE_P2P)
/* Check whether the given IE looks like WFA WFDisplay IE. */
#ifndef WFA_OUI_TYPE_WFD
#define WFA_OUI_TYPE_WFD 0x0a /* WiFi Display OUI TYPE */
#endif
#define wl_cfgp2p_is_wfd_ie(ie, tlvs, len) wl_cfgp2p_has_ie(ie, tlvs, len, \
(const uint8 *)WFA_OUI, WFA_OUI_LEN, WFA_OUI_TYPE_WFD)
static s32
wl_cfgp2p_parse_vndr_ies(u8 *parse, u32 len,
struct parsed_vndr_ies *vndr_ies)
{
s32 err = BCME_OK;
vndr_ie_t *vndrie;
bcm_tlv_t *ie;