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M7350/kernel/drivers/net/wireless/bcmdhd/wl_cfgp2p.c

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M7350v1_en_gpl
2024-09-09 08:52:07 +00:00
/*
* Linux cfgp2p driver
*
* Copyright (C) 1999-2012, 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 321498 2012-03-15 12:54:13Z $
*
*/
#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 <wl_cfg80211.h>
#include <wl_cfgp2p.h>
#include <wldev_common.h>
#include <wl_android.h>
static s8 scanparambuf[WLC_IOCTL_SMLEN];
static bool
wl_cfgp2p_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len, const u8 *oui, u32 oui_len, u8 type);
static s32
wl_cfgp2p_vndr_ie(struct wl_priv *wl, struct net_device *ndev, s32 bssidx, s32 pktflag,
s8 *oui, s32 ie_id, s8 *data, s32 data_len, s32 delete);
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,
};
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;
}
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;
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;
}
void wl_cfgp2p_print_actframe(bool tx, void *frame, u32 frame_len)
{
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_DBG(("%s P2P Group Owner Negotiation Req Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_GON_RSP:
CFGP2P_DBG(("%s P2P Group Owner Negotiation Rsp Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_GON_CONF:
CFGP2P_DBG(("%s P2P Group Owner Negotiation Confirm Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_INVITE_REQ:
CFGP2P_DBG(("%s P2P Invitation Request Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_INVITE_RSP:
CFGP2P_DBG(("%s P2P Invitation Response Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_DEVDIS_REQ:
CFGP2P_DBG(("%s P2P Device Discoverability Request Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_DEVDIS_RSP:
CFGP2P_DBG(("%s P2P Device Discoverability Response Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_PROVDIS_REQ:
CFGP2P_DBG(("%s P2P Provision Discovery Request Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_PAF_PROVDIS_RSP:
CFGP2P_DBG(("%s P2P Provision Discovery Response Frame\n",
(tx)? "TX": "RX"));
break;
default:
CFGP2P_DBG(("%s Unknown P2P Public Action Frame\n",
(tx)? "TX": "RX"));
}
} 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_DBG(("%s P2P Notice of Absence Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_AF_PRESENCE_REQ:
CFGP2P_DBG(("%s P2P Presence Request Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_AF_PRESENCE_RSP:
CFGP2P_DBG(("%s P2P Presence Response Frame\n",
(tx)? "TX": "RX"));
break;
case P2P_AF_GO_DISC_REQ:
CFGP2P_DBG(("%s P2P Discoverability Request Frame\n",
(tx)? "TX": "RX"));
break;
default:
CFGP2P_DBG(("%s Unknown P2P Action Frame\n",
(tx)? "TX": "RX"));
}
} 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_DBG(("%s P2P GAS Initial Request\n",
(tx)? "TX" : "RX"));
break;
case P2PSD_ACTION_ID_GAS_IRESP:
CFGP2P_DBG(("%s P2P GAS Initial Response\n",
(tx)? "TX" : "RX"));
break;
case P2PSD_ACTION_ID_GAS_CREQ:
CFGP2P_DBG(("%s P2P GAS Comback Request\n",
(tx)? "TX" : "RX"));
break;
case P2PSD_ACTION_ID_GAS_CRESP:
CFGP2P_DBG(("%s P2P GAS Comback Response\n",
(tx)? "TX" : "RX"));
break;
default:
CFGP2P_DBG(("%s Unknown P2P GAS Frame\n",
(tx)? "TX" : "RX"));
}
}
}
/*
* Initialize variables related to P2P
*
*/
s32
wl_cfgp2p_init_priv(struct wl_priv *wl)
{
if (!(wl->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(wl, BSS_TYPE).p2p_ ## IE_TYPE ## _ie, 0, \
sizeof(wl_to_p2p_bss_saved_ie(wl, BSS_TYPE).p2p_ ## IE_TYPE ## _ie)); \
wl_to_p2p_bss_saved_ie(wl, 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(wl, P2PAPI_BSSCFG_PRIMARY) = wl_to_prmry_ndev(wl);
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_PRIMARY) = 0;
wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_DEVICE) = NULL;
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE) = 0;
wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_CONNECTION) = NULL;
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_CONNECTION) = 0;
spin_lock_init(&wl->p2p->timer_lock);
return BCME_OK;
}
/*
* Deinitialize variables related to P2P
*
*/
void
wl_cfgp2p_deinit_priv(struct wl_priv *wl)
{
CFGP2P_DBG(("In\n"));
if (wl->p2p) {
kfree(wl->p2p);
wl->p2p = NULL;
}
wl->p2p_supported = 0;
}
/*
* Set P2P functions into firmware
*/
s32
wl_cfgp2p_set_firm_p2p(struct wl_priv *wl)
{
struct net_device *ndev = wl_to_prmry_ndev(wl);
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 ? */
wldev_iovar_getint(ndev, "apsta", &val);
if (val == 0) {
val = 1;
wldev_ioctl(ndev, WLC_DOWN, &val, sizeof(s32), true);
wldev_iovar_setint(ndev, "apsta", val);
wldev_ioctl(ndev, WLC_UP, &val, sizeof(s32), true);
}
val = 1;
/* Disable firmware roaming for P2P */
wldev_iovar_setint(ndev, "roam_off", val);
/* 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), wl->ioctl_buf, WLC_IOCTL_MAXLEN, 0, &wl->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 wl_priv *wl, struct ether_addr *mac, u8 if_type,
chanspec_t chspec)
{
wl_p2p_if_t ifreq;
s32 err;
struct net_device *ndev = wl_to_prmry_ndev(wl);
ifreq.type = if_type;
ifreq.chspec = chspec;
memcpy(ifreq.addr.octet, mac->octet, sizeof(ifreq.addr.octet));
CFGP2P_DBG(("---wl p2p_ifadd %02x:%02x:%02x:%02x:%02x:%02x %s %u\n",
ifreq.addr.octet[0], ifreq.addr.octet[1], ifreq.addr.octet[2],
ifreq.addr.octet[3], ifreq.addr.octet[4], ifreq.addr.octet[5],
(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),
wl->ioctl_buf, WLC_IOCTL_MAXLEN, &wl->ioctl_buf_sync);
return err;
}
/* Delete a P2P BSS.
* Parameters:
* @mac : MAC address of the BSS to create
* Returns 0 if success.
*/
s32
wl_cfgp2p_ifdel(struct wl_priv *wl, struct ether_addr *mac)
{
s32 ret;
struct net_device *netdev = wl_to_prmry_ndev(wl);
CFGP2P_INFO(("------primary idx %d : wl p2p_ifdel %02x:%02x:%02x:%02x:%02x:%02x\n",
netdev->ifindex, mac->octet[0], mac->octet[1], mac->octet[2],
mac->octet[3], mac->octet[4], mac->octet[5]));
ret = wldev_iovar_setbuf(netdev, "p2p_ifdel", mac, sizeof(*mac),
wl->ioctl_buf, WLC_IOCTL_MAXLEN, &wl->ioctl_buf_sync);
if (unlikely(ret < 0)) {
printk("'wl 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 wl_priv *wl, struct ether_addr *mac, u8 if_type,
chanspec_t chspec)
{
wl_p2p_if_t ifreq;
s32 err;
struct net_device *netdev = wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_CONNECTION);
ifreq.type = if_type;
ifreq.chspec = chspec;
memcpy(ifreq.addr.octet, mac->octet, sizeof(ifreq.addr.octet));
CFGP2P_INFO(("---wl p2p_ifchange %02x:%02x:%02x:%02x:%02x:%02x %s %u\n",
ifreq.addr.octet[0], ifreq.addr.octet[1], ifreq.addr.octet[2],
ifreq.addr.octet[3], ifreq.addr.octet[4], ifreq.addr.octet[5],
(if_type == WL_P2P_IF_GO) ? "go" : "client",
(chspec & WL_CHANSPEC_CHAN_MASK) >> WL_CHANSPEC_CHAN_SHIFT));
err = wldev_iovar_setbuf(netdev, "p2p_ifupd", &ifreq, sizeof(ifreq),
wl->ioctl_buf, WLC_IOCTL_MAXLEN, &wl->ioctl_buf_sync);
if (unlikely(err < 0)) {
printk("'wl p2p_ifupd' 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 wl_priv *wl, struct ether_addr *mac, s32 *index)
{
s32 ret;
u8 getbuf[64];
struct net_device *dev = wl_to_prmry_ndev(wl);
CFGP2P_INFO(("---wl p2p_if %02x:%02x:%02x:%02x:%02x:%02x\n",
mac->octet[0], mac->octet[1], mac->octet[2],
mac->octet[3], mac->octet[4], mac->octet[5]));
ret = wldev_iovar_getbuf_bsscfg(dev, "p2p_if", mac, sizeof(*mac), getbuf,
sizeof(getbuf), wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_PRIMARY), NULL);
if (ret == 0) {
memcpy(index, getbuf, sizeof(index));
CFGP2P_INFO(("---wl p2p_if ==> %d\n", *index));
}
return ret;
}
static s32
wl_cfgp2p_set_discovery(struct wl_priv *wl, s32 on)
{
s32 ret = BCME_OK;
struct net_device *ndev = wl_to_prmry_ndev(wl);
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 wl_priv *wl, 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 >= P2PAPI_BSSCFG_MAX)) {
CFGP2P_ERR((" %d index out of range\n", bssidx));
return -1;
}
dev = wl_to_p2p_bss_ndev(wl, 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), wl->ioctl_buf, WLC_IOCTL_MAXLEN,
bssidx, &wl->ioctl_buf_sync);
return ret;
}
/* Get the index of the P2P Discovery BSS */
static s32
wl_cfgp2p_get_disc_idx(struct wl_priv *wl, s32 *index)
{
s32 ret;
struct net_device *dev = wl_to_p2p_bss_ndev(wl, 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 wl_priv *wl)
{
s32 index = 0;
s32 ret = BCME_OK;
CFGP2P_DBG(("enter\n"));
if (wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE) != 0) {
CFGP2P_ERR(("do nothing, already initialized\n"));
return ret;
}
ret = wl_cfgp2p_set_discovery(wl, 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(wl, &index);
if (ret < 0) {
return ret;
}
wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_DEVICE) =
wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_PRIMARY);
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE) = index;
/* Set the initial discovery state to SCAN */
ret = wl_cfgp2p_set_p2p_mode(wl, WL_P2P_DISC_ST_SCAN, 0, 0,
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));
if (unlikely(ret != 0)) {
CFGP2P_ERR(("unable to set WL_P2P_DISC_ST_SCAN\n"));
wl_cfgp2p_set_discovery(wl, 0);
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE) = 0;
wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_DEVICE) = NULL;
return 0;
}
return ret;
}
/* Deinitialize P2P Discovery
* Parameters :
* @wl : wl_private data
* Returns 0 if succes
*/
static s32
wl_cfgp2p_deinit_discovery(struct wl_priv *wl)
{
s32 ret = BCME_OK;
CFGP2P_DBG(("enter\n"));
if (wl_to_p2p_bss_bssidx(wl, 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(wl, WL_P2P_DISC_ST_SCAN, 0, 0,
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));
/* Disable P2P discovery in the WL driver (deletes the discovery BSSCFG) */
ret = wl_cfgp2p_set_discovery(wl, 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(wl, P2PAPI_BSSCFG_DEVICE) = 0;
wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_DEVICE) = NULL;
return ret;
}
/* Enable P2P Discovery
* Parameters:
* @wl : 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 wl_priv *wl, struct net_device *dev,
const u8 *ie, u32 ie_len)
{
s32 ret = BCME_OK;
if (wl_get_p2p_status(wl, DISCOVERY_ON)) {
CFGP2P_INFO((" DISCOVERY is already initialized, we have nothing to do\n"));
goto set_ie;
}
wl_set_p2p_status(wl, DISCOVERY_ON);
CFGP2P_DBG(("enter\n"));
ret = wl_cfgp2p_init_discovery(wl);
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(wl, P2PAPI_BSSCFG_DEVICE),
"wsec", AES_ENABLED, wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));
if (unlikely(ret < 0)) {
CFGP2P_ERR((" wsec error %d\n", ret));
}
set_ie:
ret = wl_cfgp2p_set_management_ie(wl, dev,
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE),
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:
* @wl : wl_private_data
* Returns 0 if success.
*/
s32
wl_cfgp2p_disable_discovery(struct wl_priv *wl)
{
s32 ret = BCME_OK;
CFGP2P_DBG((" enter\n"));
wl_clr_p2p_status(wl, DISCOVERY_ON);
if (wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE) == 0) {
CFGP2P_ERR((" do nothing, not initialized\n"));
goto exit;
}
ret = wl_cfgp2p_set_p2p_mode(wl, WL_P2P_DISC_ST_SCAN, 0, 0,
wl_to_p2p_bss_bssidx(wl, 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.
*/
#ifdef NOT_YET
if (wl_get_p2p_status(wl, SCANNING)) {
p2pwlu_scan_abort(hdl, FALSE);
}
#endif
wl_clr_p2p_status(wl, DISCOVERY_ON);
ret = wl_cfgp2p_deinit_discovery(wl);
exit:
return ret;
}
s32
wl_cfgp2p_escan(struct wl_priv *wl, struct net_device *dev, u16 active,
u32 num_chans, u16 *channels,
s32 search_state, u16 action, u32 bssidx)
{
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 50
#define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40
#define P2PAPI_SCAN_HOME_TIME_MS 60
struct net_device *pri_dev = wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_PRIMARY);
wl_set_p2p_status(wl, SCANNING);
/* 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 > %u)\n",
memsize, sizeof(scanparambuf)));
return -1;
}
memset(memblk, 0, memsize);
memset(wl->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(wl, WL_P2P_DISC_ST_SEARCH, 0, 0, bssidx);
ssid.SSID_len = htod32(0);
} 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
*/
strcpy(ssid.SSID, WL_P2P_WILDCARD_SSID);
ssid.SSID_len = htod32(WL_P2P_WILDCARD_SSID_LEN);
wl_cfgp2p_set_p2p_mode(wl, WL_P2P_DISC_ST_SCAN, 0, 0, bssidx);
}
/* 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;
memcpy(&eparams->params.bssid, &ether_bcast, ETHER_ADDR_LEN);
if (ssid.SSID_len)
memcpy(&eparams->params.ssid, &ssid, sizeof(wlc_ssid_t));
eparams->params.nprobes = htod32(P2PAPI_SCAN_NPROBES);
eparams->params.home_time = htod32(P2PAPI_SCAN_HOME_TIME_MS);
if (wl_get_drv_status_all(wl, CONNECTED))
eparams->params.active_time = htod32(-1);
else if (num_chans == 3)
eparams->params.active_time = htod32(P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS);
else
eparams->params.active_time = htod32(P2PAPI_SCAN_DWELL_TIME_MS);
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);
eparams->sync_id = htod16(0x1234);
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, wl->ioctl_buf, WLC_IOCTL_MAXLEN, bssidx, &wl->ioctl_buf_sync);
return ret;
}
/* search function to reach at common channel to send action frame
* Parameters:
* @wl : wl_private data
* @ndev : net device for bssidx
* @bssidx : bssidx for BSS
* Returns 0 if success.
*/
s32
wl_cfgp2p_act_frm_search(struct wl_priv *wl, struct net_device *ndev,
s32 bssidx, s32 channel)
{
s32 ret = 0;
u32 chan_cnt = 0;
u16 *default_chan_list = NULL;
if (!p2p_is_on(wl))
return -BCME_ERROR;
CFGP2P_ERR((" Enter\n"));
if (bssidx == P2PAPI_BSSCFG_PRIMARY)
bssidx = wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE);
if (channel)
chan_cnt = 1;
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) {
default_chan_list[0] = 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(wl, ndev, true, SOCIAL_CHAN_CNT,
default_chan_list, WL_P2P_DISC_ST_SEARCH,
WL_SCAN_ACTION_START, bssidx);
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. */
#define WFA_OUI_TYPE_WFD 0x0a /* WiFi Display OUI TYPE */
#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)
/* Delete and Set a management vndr ie to firmware
* Parameters:
* @wl : wl_private data
* @ndev : net device for bssidx
* @bssidx : bssidx for BSS
* @pktflag : packet flag for IE (VNDR_IE_PRBREQ_FLAG,VNDR_IE_PRBRSP_FLAG, VNDR_IE_ASSOCRSP_FLAG,
* VNDR_IE_ASSOCREQ_FLAG)
* @ie : VNDR IE (such as P2P IE , WPS IE)
* @ie_len : VNDR IE Length
* Returns 0 if success.
*/
s32
wl_cfgp2p_set_management_ie(struct wl_priv *wl, struct net_device *ndev, s32 bssidx,
s32 pktflag, const u8 *vndr_ie, u32 vndr_ie_len)
{
/* Vendor-specific Information Element ID */
#define VNDR_SPEC_ELEMENT_ID 0xdd
s32 ret = BCME_OK;
u32 pos;
u8 *ie_buf;
u8 *mgmt_ie_buf = NULL;
u32 mgmt_ie_buf_len = 0;
u32 *mgmt_ie_len = 0;
u8 ie_id, ie_len;
u8 delete = 0;
#define IE_TYPE(type, bsstype) (wl_to_p2p_bss_saved_ie(wl, bsstype).p2p_ ## type ## _ie)
#define IE_TYPE_LEN(type, bsstype) (wl_to_p2p_bss_saved_ie(wl, bsstype).p2p_ ## type ## _ie_len)
if (p2p_is_on(wl) && bssidx != -1) {
if (bssidx == P2PAPI_BSSCFG_PRIMARY)
bssidx = wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE);
switch (pktflag) {
case VNDR_IE_PRBREQ_FLAG :
mgmt_ie_buf = IE_TYPE(probe_req, bssidx);
mgmt_ie_len = &IE_TYPE_LEN(probe_req, bssidx);
mgmt_ie_buf_len = sizeof(IE_TYPE(probe_req, bssidx));
break;
case VNDR_IE_PRBRSP_FLAG :
mgmt_ie_buf = IE_TYPE(probe_res, bssidx);
mgmt_ie_len = &IE_TYPE_LEN(probe_res, bssidx);
mgmt_ie_buf_len = sizeof(IE_TYPE(probe_res, bssidx));
break;
case VNDR_IE_ASSOCREQ_FLAG :
mgmt_ie_buf = IE_TYPE(assoc_req, bssidx);
mgmt_ie_len = &IE_TYPE_LEN(assoc_req, bssidx);
mgmt_ie_buf_len = sizeof(IE_TYPE(assoc_req, bssidx));
break;
case VNDR_IE_ASSOCRSP_FLAG :
mgmt_ie_buf = IE_TYPE(assoc_res, bssidx);
mgmt_ie_len = &IE_TYPE_LEN(assoc_res, bssidx);
mgmt_ie_buf_len = sizeof(IE_TYPE(assoc_res, bssidx));
break;
case VNDR_IE_BEACON_FLAG :
mgmt_ie_buf = IE_TYPE(beacon, bssidx);
mgmt_ie_len = &IE_TYPE_LEN(beacon, bssidx);
mgmt_ie_buf_len = sizeof(IE_TYPE(beacon, bssidx));
break;
default:
mgmt_ie_buf = NULL;
mgmt_ie_len = NULL;
CFGP2P_ERR(("not suitable type\n"));
return -1;
}
} else if (wl_get_mode_by_netdev(wl, ndev) == WL_MODE_AP) {
switch (pktflag) {
case VNDR_IE_PRBRSP_FLAG :
mgmt_ie_buf = wl->ap_info->probe_res_ie;
mgmt_ie_len = &wl->ap_info->probe_res_ie_len;
mgmt_ie_buf_len = sizeof(wl->ap_info->probe_res_ie);
break;
case VNDR_IE_BEACON_FLAG :
mgmt_ie_buf = wl->ap_info->beacon_ie;
mgmt_ie_len = &wl->ap_info->beacon_ie_len;
mgmt_ie_buf_len = sizeof(wl->ap_info->beacon_ie);
break;
default:
mgmt_ie_buf = NULL;
mgmt_ie_len = NULL;
CFGP2P_ERR(("not suitable type\n"));
return -1;
}
bssidx = 0;
} else if (bssidx == -1 && wl_get_mode_by_netdev(wl, ndev) == WL_MODE_BSS) {
switch (pktflag) {
case VNDR_IE_PRBREQ_FLAG :
mgmt_ie_buf = wl->sta_info->probe_req_ie;
mgmt_ie_len = &wl->sta_info->probe_req_ie_len;
mgmt_ie_buf_len = sizeof(wl->sta_info->probe_req_ie);
break;
case VNDR_IE_ASSOCREQ_FLAG :
mgmt_ie_buf = wl->sta_info->assoc_req_ie;
mgmt_ie_len = &wl->sta_info->assoc_req_ie_len;
mgmt_ie_buf_len = sizeof(wl->sta_info->assoc_req_ie);
break;
default:
mgmt_ie_buf = NULL;
mgmt_ie_len = NULL;
CFGP2P_ERR(("not suitable type\n"));
return -1;
}
bssidx = 0;
} else {
CFGP2P_ERR(("not suitable type\n"));
return -1;
}
if (vndr_ie_len > mgmt_ie_buf_len) {
CFGP2P_ERR(("extra IE size too big\n"));
ret = -ENOMEM;
} else {
if (mgmt_ie_buf != NULL) {
if (vndr_ie_len && (vndr_ie_len == *mgmt_ie_len) &&
(memcmp(mgmt_ie_buf, vndr_ie, vndr_ie_len) == 0)) {
CFGP2P_INFO(("Previous mgmt IE is equals to current IE"));
goto exit;
}
pos = 0;
delete = 1;
ie_buf = (u8 *) mgmt_ie_buf;
while (pos < *mgmt_ie_len) {
ie_id = ie_buf[pos++];
ie_len = ie_buf[pos++];
if ((ie_id == DOT11_MNG_VS_ID) &&
(wl_cfgp2p_is_wps_ie(&ie_buf[pos-2], NULL, 0) ||
wl_cfgp2p_is_p2p_ie(&ie_buf[pos-2], NULL, 0) ||
wl_cfgp2p_is_wfd_ie(&ie_buf[pos-2], NULL, 0))) {
CFGP2P_INFO(("DELELED ID : %d, Len : %d , OUI :"
"%02x:%02x:%02x\n", ie_id, ie_len, ie_buf[pos],
ie_buf[pos+1], ie_buf[pos+2]));
ret = wl_cfgp2p_vndr_ie(wl, ndev, bssidx, pktflag,
ie_buf+pos, VNDR_SPEC_ELEMENT_ID, ie_buf+pos+3,
ie_len-3, delete);
}
pos += ie_len;
}
}
*mgmt_ie_len = 0;
/* Add if there is any extra IE */
if (vndr_ie && vndr_ie_len) {
/* save the current IE in wl struct */
memcpy(mgmt_ie_buf, vndr_ie, vndr_ie_len);
*mgmt_ie_len = vndr_ie_len;
pos = 0;
ie_buf = (u8 *) vndr_ie;
delete = 0;
while (pos < vndr_ie_len) {
ie_id = ie_buf[pos++];
ie_len = ie_buf[pos++];
if ((ie_id == DOT11_MNG_VS_ID) &&
(wl_cfgp2p_is_wps_ie(&ie_buf[pos-2], NULL, 0) ||
wl_cfgp2p_is_p2p_ie(&ie_buf[pos-2], NULL, 0) ||
wl_cfgp2p_is_wfd_ie(&ie_buf[pos-2], NULL, 0))) {
CFGP2P_INFO(("ADDED ID : %d, Len : %d , OUI :"
"%02x:%02x:%02x\n", ie_id, ie_len, ie_buf[pos],
ie_buf[pos+1], ie_buf[pos+2]));
ret = wl_cfgp2p_vndr_ie(wl, ndev, bssidx, pktflag,
ie_buf+pos, VNDR_SPEC_ELEMENT_ID, ie_buf+pos+3,
ie_len-3, delete);
}
pos += ie_len;
}
}
}
#undef IE_TYPE
#undef IE_TYPE_LEN
exit:
return ret;
}
/* Clear the manament IE buffer of BSSCFG
* Parameters:
* @wl : wl_private data
* @bssidx : bssidx for BSS
*
* Returns 0 if success.
*/
s32
wl_cfgp2p_clear_management_ie(struct wl_priv *wl, s32 bssidx)
{
#define INIT_IE(IE_TYPE, BSS_TYPE) \
do { \
memset(wl_to_p2p_bss_saved_ie(wl, BSS_TYPE).p2p_ ## IE_TYPE ## _ie, 0, \
sizeof(wl_to_p2p_bss_saved_ie(wl, BSS_TYPE).p2p_ ## IE_TYPE ## _ie)); \
wl_to_p2p_bss_saved_ie(wl, BSS_TYPE).p2p_ ## IE_TYPE ## _ie_len = 0; \
} while (0);
if (bssidx < 0) {
CFGP2P_ERR(("invalid bssidx\n"));
return BCME_BADARG;
}
INIT_IE(probe_req, bssidx);
INIT_IE(probe_res, bssidx);
INIT_IE(assoc_req, bssidx);
INIT_IE(assoc_res, bssidx);
INIT_IE(beacon, bssidx);
return BCME_OK;
}
/* Is any of the tlvs the expected entry? If
* not update the tlvs buffer pointer/length.
*/
static bool
wl_cfgp2p_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len, const u8 *oui, u32 oui_len, u8 type)
{
/* If the contents match the OUI and the type */
if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
!bcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
type == ie[TLV_BODY_OFF + oui_len]) {
return TRUE;
}
if (tlvs == NULL)
return FALSE;
/* point to the next ie */
ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
/* calculate the length of the rest of the buffer */
*tlvs_len -= (int)(ie - *tlvs);
/* update the pointer to the start of the buffer */
*tlvs = ie;
return FALSE;
}
wpa_ie_fixed_t *
wl_cfgp2p_find_wpaie(u8 *parse, u32 len)
{
bcm_tlv_t *ie;
while ((ie = bcm_parse_tlvs(parse, (u32)len, DOT11_MNG_VS_ID))) {
if (wl_cfgp2p_is_wpa_ie((u8*)ie, &parse, &len)) {
return (wpa_ie_fixed_t *)ie;
}
}
return NULL;
}
wpa_ie_fixed_t *
wl_cfgp2p_find_wpsie(u8 *parse, u32 len)
{
bcm_tlv_t *ie;
while ((ie = bcm_parse_tlvs(parse, (u32)len, DOT11_MNG_VS_ID))) {
if (wl_cfgp2p_is_wps_ie((u8*)ie, &parse, &len)) {
return (wpa_ie_fixed_t *)ie;
}
}
return NULL;
}
wifi_p2p_ie_t *
wl_cfgp2p_find_p2pie(u8 *parse, u32 len)
{
bcm_tlv_t *ie;
while ((ie = bcm_parse_tlvs(parse, (int)len, DOT11_MNG_VS_ID))) {
if (wl_cfgp2p_is_p2p_ie((uint8*)ie, &parse, &len)) {
return (wifi_p2p_ie_t *)ie;
}
}
return NULL;
}
wifi_wfd_ie_t *
wl_cfgp2p_find_wfdie(u8 *parse, u32 len)
{
bcm_tlv_t *ie;
while ((ie = bcm_parse_tlvs(parse, (int)len, DOT11_MNG_VS_ID))) {
if (wl_cfgp2p_is_wfd_ie((uint8*)ie, &parse, &len)) {
return (wifi_wfd_ie_t *)ie;
}
}
return NULL;
}
static s32
wl_cfgp2p_vndr_ie(struct wl_priv *wl, struct net_device *ndev, s32 bssidx, s32 pktflag,
s8 *oui, s32 ie_id, s8 *data, s32 data_len, s32 delete)
{
s32 err = BCME_OK;
s32 buf_len;
s32 iecount;
vndr_ie_setbuf_t *ie_setbuf;
/* Validate the pktflag parameter */
if ((pktflag & ~(VNDR_IE_BEACON_FLAG | VNDR_IE_PRBRSP_FLAG |
VNDR_IE_ASSOCRSP_FLAG | VNDR_IE_AUTHRSP_FLAG |
VNDR_IE_PRBREQ_FLAG | VNDR_IE_ASSOCREQ_FLAG))) {
CFGP2P_ERR(("p2pwl_vndr_ie: Invalid packet flag 0x%x\n", pktflag));
return -1;
}
buf_len = sizeof(vndr_ie_setbuf_t) + data_len - 1;
ie_setbuf = (vndr_ie_setbuf_t *) kzalloc(buf_len, GFP_KERNEL);
CFGP2P_INFO((" ie_id : %02x, data length : %d\n", ie_id, data_len));
if (!ie_setbuf) {
CFGP2P_ERR(("Error allocating buffer for IE\n"));
return -ENOMEM;
}
if (delete)
strcpy(ie_setbuf->cmd, "del");
else
strcpy(ie_setbuf->cmd, "add");
/* Buffer contains only 1 IE */
iecount = htod32(1);
memcpy((void *)&ie_setbuf->vndr_ie_buffer.iecount, &iecount, sizeof(int));
pktflag = htod32(pktflag);
memcpy((void *)&ie_setbuf->vndr_ie_buffer.vndr_ie_list[0].pktflag,
&pktflag, sizeof(uint32));
ie_setbuf->vndr_ie_buffer.vndr_ie_list[0].vndr_ie_data.id = ie_id;
ie_setbuf->vndr_ie_buffer.vndr_ie_list[0].vndr_ie_data.len
= (uchar)(data_len + VNDR_IE_MIN_LEN);
memcpy(ie_setbuf->vndr_ie_buffer.vndr_ie_list[0].vndr_ie_data.oui, oui, 3);
memcpy(ie_setbuf->vndr_ie_buffer.vndr_ie_list[0].vndr_ie_data.data, data, data_len);
err = wldev_iovar_setbuf_bsscfg(ndev, "vndr_ie", ie_setbuf, buf_len,
wl->ioctl_buf, WLC_IOCTL_MAXLEN, bssidx, &wl->ioctl_buf_sync);
CFGP2P_INFO(("vndr_ie iovar returns %d\n", err));
kfree(ie_setbuf);
return err;
}
/*
* Search the bssidx based on dev argument
* Parameters:
* @wl : wl_private data
* @ndev : net device to search bssidx
* Returns bssidx for ndev
*/
s32
wl_cfgp2p_find_idx(struct wl_priv *wl, struct net_device *ndev)
{
u32 i;
s32 index = -1;
if (ndev == NULL) {
CFGP2P_ERR((" ndev is NULL\n"));
goto exit;
}
if (!wl->p2p_supported) {
return P2PAPI_BSSCFG_PRIMARY;
}
for (i = 0; i < P2PAPI_BSSCFG_MAX; i++) {
if (ndev == wl_to_p2p_bss_ndev(wl, i)) {
index = wl_to_p2p_bss_bssidx(wl, i);
break;
}
}
if (index == -1)
return P2PAPI_BSSCFG_PRIMARY;
exit:
return index;
}
/*
* Callback function for WLC_E_P2P_DISC_LISTEN_COMPLETE
*/
s32
wl_cfgp2p_listen_complete(struct wl_priv *wl, struct net_device *ndev,
const wl_event_msg_t *e, void *data)
{
s32 ret = BCME_OK;
CFGP2P_DBG((" Enter\n"));
if (wl_get_p2p_status(wl, LISTEN_EXPIRED) == 0) {
wl_set_p2p_status(wl, LISTEN_EXPIRED);
if (timer_pending(&wl->p2p->listen_timer)) {
spin_lock_bh(&wl->p2p->timer_lock);
del_timer_sync(&wl->p2p->listen_timer);
spin_unlock_bh(&wl->p2p->timer_lock);
}
cfg80211_remain_on_channel_expired(ndev, wl->last_roc_id, &wl->remain_on_chan,
wl->remain_on_chan_type, GFP_KERNEL);
} else
wl_clr_p2p_status(wl, LISTEN_EXPIRED);
return ret;
}
/*
* Timer expire callback function for LISTEN
* We can't report cfg80211_remain_on_channel_expired from Timer ISR context,
* so lets do it from thread context.
*/
static void
wl_cfgp2p_listen_expired(unsigned long data)
{
wl_event_msg_t msg;
struct wl_priv *wl = (struct wl_priv *) data;
CFGP2P_DBG((" Enter\n"));
msg.event_type = hton32(WLC_E_P2P_DISC_LISTEN_COMPLETE);
wl_cfg80211_event(wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_DEVICE), &msg, NULL);
}
/*
* Do a P2P Listen on the given channel for the given duration.
* A listen consists of sitting idle and responding to P2P probe requests
* with a P2P probe response.
*
* This fn assumes dongle p2p device discovery is already enabled.
* Parameters :
* @wl : wl_private data
* @channel : channel to listen
* @duration_ms : the time (milli seconds) to wait
*/
s32
wl_cfgp2p_discover_listen(struct wl_priv *wl, s32 channel, u32 duration_ms)
{
#define INIT_TIMER(timer, func, duration, extra_delay) \
do { \
init_timer(timer); \
timer->function = func; \
timer->expires = jiffies + msecs_to_jiffies(duration + extra_delay); \
timer->data = (unsigned long) wl; \
add_timer(timer); \
} while (0);
s32 ret = BCME_OK;
struct timer_list *_timer;
CFGP2P_DBG((" Enter Channel : %d, Duration : %d\n", channel, duration_ms));
if (unlikely(wl_get_p2p_status(wl, DISCOVERY_ON) == 0)) {
CFGP2P_ERR((" Discovery is not set, so we have noting to do\n"));
ret = BCME_NOTREADY;
goto exit;
}
if (timer_pending(&wl->p2p->listen_timer)) {
CFGP2P_DBG(("previous LISTEN is not completed yet\n"));
goto exit;
} else
wl_clr_p2p_status(wl, LISTEN_EXPIRED);
wl_cfgp2p_set_p2p_mode(wl, WL_P2P_DISC_ST_LISTEN, channel, (u16) duration_ms,
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));
_timer = &wl->p2p->listen_timer;
/* We will wait to receive WLC_E_P2P_DISC_LISTEN_COMPLETE from dongle ,
* otherwise we will wait up to duration_ms + 200ms
*/
INIT_TIMER(_timer, wl_cfgp2p_listen_expired, duration_ms, 200);
#undef INIT_TIMER
exit:
return ret;
}
s32
wl_cfgp2p_discover_enable_search(struct wl_priv *wl, u8 enable)
{
s32 ret = BCME_OK;
CFGP2P_DBG((" Enter\n"));
if (!wl_get_p2p_status(wl, DISCOVERY_ON)) {
CFGP2P_DBG((" do nothing, discovery is off\n"));
return ret;
}
if (wl_get_p2p_status(wl, SEARCH_ENABLED) == enable) {
CFGP2P_DBG(("already : %d\n", enable));
return ret;
}
wl_chg_p2p_status(wl, SEARCH_ENABLED);
/* When disabling Search, reset the WL driver's p2p discovery state to
* WL_P2P_DISC_ST_SCAN.
*/
if (!enable) {
wl_clr_p2p_status(wl, SCANNING);
ret = wl_cfgp2p_set_p2p_mode(wl, WL_P2P_DISC_ST_SCAN, 0, 0,
wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE));
}
return ret;
}
/*
* Callback function for WLC_E_ACTION_FRAME_COMPLETE, WLC_E_ACTION_FRAME_OFF_CHAN_COMPLETE
*/
s32
wl_cfgp2p_action_tx_complete(struct wl_priv *wl, struct net_device *ndev,
const wl_event_msg_t *e, void *data)
{
s32 ret = BCME_OK;
u32 event_type = ntoh32(e->event_type);
u32 status = ntoh32(e->status);
CFGP2P_DBG((" Enter\n"));
if (event_type == WLC_E_ACTION_FRAME_COMPLETE) {
CFGP2P_INFO((" WLC_E_ACTION_FRAME_COMPLETE is received : %d\n", status));
if (status == WLC_E_STATUS_SUCCESS) {
wl_set_p2p_status(wl, ACTION_TX_COMPLETED);
}
else {
wl_set_p2p_status(wl, ACTION_TX_NOACK);
CFGP2P_ERR(("WLC_E_ACTION_FRAME_COMPLETE : NO ACK\n"));
}
} else {
CFGP2P_INFO((" WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE is received,"
"status : %d\n", status));
wake_up_interruptible(&wl->netif_change_event);
}
return ret;
}
/* Send an action frame immediately without doing channel synchronization.
*
* This function does not wait for a completion event before returning.
* The WLC_E_ACTION_FRAME_COMPLETE event will be received when the action
* frame is transmitted.
* The WLC_E_ACTION_FRAME_OFF_CHAN_COMPLETE event will be received when an
* 802.11 ack has been received for the sent action frame.
*/
s32
wl_cfgp2p_tx_action_frame(struct wl_priv *wl, struct net_device *dev,
wl_af_params_t *af_params, s32 bssidx)
{
s32 ret = BCME_OK;
s32 timeout = 0;
CFGP2P_INFO(("\n"));
CFGP2P_INFO(("channel : %u , dwell time : %u\n",
af_params->channel, af_params->dwell_time));
wl_clr_p2p_status(wl, ACTION_TX_COMPLETED);
wl_clr_p2p_status(wl, ACTION_TX_NOACK);
#define MAX_WAIT_TIME 2000
if (bssidx == P2PAPI_BSSCFG_PRIMARY)
bssidx = wl_to_p2p_bss_bssidx(wl, P2PAPI_BSSCFG_DEVICE);
ret = wldev_iovar_setbuf_bsscfg(dev, "actframe", af_params, sizeof(*af_params),
wl->ioctl_buf, WLC_IOCTL_MAXLEN, bssidx, &wl->ioctl_buf_sync);
if (ret < 0) {
CFGP2P_ERR((" sending action frame is failed\n"));
goto exit;
}
timeout = wait_event_interruptible_timeout(wl->netif_change_event,
(wl_get_p2p_status(wl, ACTION_TX_COMPLETED) || wl_get_p2p_status(wl, ACTION_TX_NOACK)),
msecs_to_jiffies(MAX_WAIT_TIME));
if (timeout > 0 && wl_get_p2p_status(wl, ACTION_TX_COMPLETED)) {
CFGP2P_INFO(("tx action frame operation is completed\n"));
ret = BCME_OK;
} else {
ret = BCME_ERROR;
CFGP2P_INFO(("tx action frame operation is failed\n"));
}
exit:
CFGP2P_INFO((" via act frame iovar : status = %d\n", ret));
#undef MAX_WAIT_TIME
return ret;
}
/* Generate our P2P Device Address and P2P Interface Address from our primary
* MAC address.
*/
void
wl_cfgp2p_generate_bss_mac(struct ether_addr *primary_addr,
struct ether_addr *out_dev_addr, struct ether_addr *out_int_addr)
{
memset(out_dev_addr, 0, sizeof(*out_dev_addr));
memset(out_int_addr, 0, sizeof(*out_int_addr));
/* Generate the P2P Device Address. This consists of the device's
* primary MAC address with the locally administered bit set.
*/
memcpy(out_dev_addr, primary_addr, sizeof(*out_dev_addr));
out_dev_addr->octet[0] |= 0x02;
/* Generate the P2P Interface Address. If the discovery and connection
* BSSCFGs need to simultaneously co-exist, then this address must be
* different from the P2P Device Address.
*/
memcpy(out_int_addr, out_dev_addr, sizeof(*out_int_addr));
out_int_addr->octet[4] ^= 0x80;
}
/* P2P IF Address change to Virtual Interface MAC Address */
void
wl_cfg80211_change_ifaddr(u8* buf, struct ether_addr *p2p_int_addr, u8 element_id)
{
wifi_p2p_ie_t *ie = (wifi_p2p_ie_t*) buf;
u16 len = ie->len;
u8 *subel;
u8 subelt_id;
u16 subelt_len;
CFGP2P_DBG((" Enter\n"));
/* Point subel to the P2P IE's subelt field.
* Subtract the preceding fields (id, len, OUI, oui_type) from the length.
*/
subel = ie->subelts;
len -= 4; /* exclude OUI + OUI_TYPE */
while (len >= 3) {
/* attribute id */
subelt_id = *subel;
subel += 1;
len -= 1;
/* 2-byte little endian */
subelt_len = *subel++;
subelt_len |= *subel++ << 8;
len -= 2;
len -= subelt_len; /* for the remaining subelt fields */
if (subelt_id == element_id) {
if (subelt_id == P2P_SEID_INTINTADDR) {
memcpy(subel, p2p_int_addr->octet, ETHER_ADDR_LEN);
CFGP2P_INFO(("Intended P2P Interface Address ATTR FOUND\n"));
} else if (subelt_id == P2P_SEID_DEV_ID) {
memcpy(subel, p2p_int_addr->octet, ETHER_ADDR_LEN);
CFGP2P_INFO(("Device ID ATTR FOUND\n"));
} else if (subelt_id == P2P_SEID_DEV_INFO) {
memcpy(subel, p2p_int_addr->octet, ETHER_ADDR_LEN);
CFGP2P_INFO(("Device INFO ATTR FOUND\n"));
} else if (subelt_id == P2P_SEID_GROUP_ID) {
memcpy(subel, p2p_int_addr->octet, ETHER_ADDR_LEN);
CFGP2P_INFO(("GROUP ID ATTR FOUND\n"));
} return;
} else {
CFGP2P_DBG(("OTHER id : %d\n", subelt_id));
}
subel += subelt_len;
}
}
/*
* Check if a BSS is up.
* This is a common implementation called by most OSL implementations of
* p2posl_bss_isup(). DO NOT call this function directly from the
* common code -- call p2posl_bss_isup() instead to allow the OSL to
* override the common implementation if necessary.
*/
bool
wl_cfgp2p_bss_isup(struct net_device *ndev, int bsscfg_idx)
{
s32 result, val;
bool isup = false;
s8 getbuf[64];
/* Check if the BSS is up */
*(int*)getbuf = -1;
result = wldev_iovar_getbuf_bsscfg(ndev, "bss", &bsscfg_idx,
sizeof(bsscfg_idx), getbuf, sizeof(getbuf), 0, NULL);
if (result != 0) {
CFGP2P_ERR(("'wl bss -C %d' failed: %d\n", bsscfg_idx, result));
CFGP2P_ERR(("NOTE: this ioctl error is normal "
"when the BSS has not been created yet.\n"));
} else {
val = *(int*)getbuf;
val = dtoh32(val);
CFGP2P_INFO(("---wl bss -C %d ==> %d\n", bsscfg_idx, val));
isup = (val ? TRUE : FALSE);
}
return isup;
}
/* Bring up or down a BSS */
s32
wl_cfgp2p_bss(struct wl_priv *wl, struct net_device *ndev, s32 bsscfg_idx, s32 up)
{
s32 ret = BCME_OK;
s32 val = up ? 1 : 0;
struct {
s32 cfg;
s32 val;
} bss_setbuf;
bss_setbuf.cfg = htod32(bsscfg_idx);
bss_setbuf.val = htod32(val);
CFGP2P_INFO(("---wl bss -C %d %s\n", bsscfg_idx, up ? "up" : "down"));
ret = wldev_iovar_setbuf(ndev, "bss", &bss_setbuf, sizeof(bss_setbuf),
wl->ioctl_buf, WLC_IOCTL_MAXLEN, &wl->ioctl_buf_sync);
if (ret != 0) {
CFGP2P_ERR(("'bss %d' failed with %d\n", up, ret));
}
return ret;
}
/* Check if 'p2p' is supported in the driver */
s32
wl_cfgp2p_supported(struct wl_priv *wl, struct net_device *ndev)
{
s32 ret = BCME_OK;
s32 p2p_supported = 0;
ret = wldev_iovar_getint(ndev, "p2p",
&p2p_supported);
if (ret < 0) {
CFGP2P_ERR(("wl p2p error %d\n", ret));
return 0;
}
if (p2p_supported == 1) {
CFGP2P_INFO(("p2p is supported\n"));
} else {
CFGP2P_INFO(("p2p is unsupported\n"));
p2p_supported = 0;
}
return p2p_supported;
}
/* Cleanup P2P resources */
s32
wl_cfgp2p_down(struct wl_priv *wl)
{
if (timer_pending(&wl->p2p->listen_timer))
del_timer_sync(&wl->p2p->listen_timer);
wl_cfgp2p_deinit_priv(wl);
return 0;
}
s32
wl_cfgp2p_set_p2p_noa(struct wl_priv *wl, struct net_device *ndev, char* buf, int len)
{
s32 ret = -1;
int count, start, duration;
wl_p2p_sched_t dongle_noa;
CFGP2P_DBG((" Enter\n"));
memset(&dongle_noa, 0, sizeof(dongle_noa));
if (wl->p2p && wl->p2p->vif_created) {
wl->p2p->noa.desc[0].start = 0;
sscanf(buf, "%d %d %d", &count, &start, &duration);
CFGP2P_DBG(("set_p2p_noa count %d start %d duration %d\n",
count, start, duration));
if (count != -1)
wl->p2p->noa.desc[0].count = count;
/* supplicant gives interval as start */
if (start != -1)
wl->p2p->noa.desc[0].interval = start;
if (duration != -1)
wl->p2p->noa.desc[0].duration = duration;
if (wl->p2p->noa.desc[0].count != 255) {
wl->p2p->noa.desc[0].start = 200;
dongle_noa.type = WL_P2P_SCHED_TYPE_REQ_ABS;
dongle_noa.action = WL_P2P_SCHED_ACTION_GOOFF;
dongle_noa.option = WL_P2P_SCHED_OPTION_TSFOFS;
}
else {
/* Continuous NoA interval. */
dongle_noa.action = WL_P2P_SCHED_ACTION_NONE;
dongle_noa.type = WL_P2P_SCHED_TYPE_ABS;
if ((wl->p2p->noa.desc[0].interval == 102) ||
(wl->p2p->noa.desc[0].interval == 100)) {
wl->p2p->noa.desc[0].start = 100 -
wl->p2p->noa.desc[0].duration;
dongle_noa.option = WL_P2P_SCHED_OPTION_BCNPCT;
}
else {
dongle_noa.option = WL_P2P_SCHED_OPTION_NORMAL;
}
}
/* Put the noa descriptor in dongle format for dongle */
dongle_noa.desc[0].count = htod32(wl->p2p->noa.desc[0].count);
if (dongle_noa.option == WL_P2P_SCHED_OPTION_BCNPCT) {
dongle_noa.desc[0].start = htod32(wl->p2p->noa.desc[0].start);
dongle_noa.desc[0].duration = htod32(wl->p2p->noa.desc[0].duration);
}
else {
dongle_noa.desc[0].start = htod32(wl->p2p->noa.desc[0].start*1000);
dongle_noa.desc[0].duration = htod32(wl->p2p->noa.desc[0].duration*1000);
}
dongle_noa.desc[0].interval = htod32(wl->p2p->noa.desc[0].interval*1000);
ret = wldev_iovar_setbuf(wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_CONNECTION),
"p2p_noa", &dongle_noa, sizeof(dongle_noa), wl->ioctl_buf, WLC_IOCTL_MAXLEN,
&wl->ioctl_buf_sync);
if (ret < 0) {
CFGP2P_ERR(("fw set p2p_noa failed %d\n", ret));
}
}
else {
CFGP2P_ERR(("ERROR: set_noa in non-p2p mode\n"));
}
return ret;
}
s32
wl_cfgp2p_get_p2p_noa(struct wl_priv *wl, struct net_device *ndev, char* buf, int buf_len)
{
wifi_p2p_noa_desc_t *noa_desc;
int len = 0, i;
char _buf[200];
CFGP2P_DBG((" Enter\n"));
buf[0] = '\0';
if (wl->p2p && wl->p2p->vif_created) {
if (wl->p2p->noa.desc[0].count || wl->p2p->ops.ops) {
_buf[0] = 1; /* noa index */
_buf[1] = (wl->p2p->ops.ops ? 0x80: 0) |
(wl->p2p->ops.ctw & 0x7f); /* ops + ctw */
len += 2;
if (wl->p2p->noa.desc[0].count) {
noa_desc = (wifi_p2p_noa_desc_t*)&_buf[len];
noa_desc->cnt_type = wl->p2p->noa.desc[0].count;
noa_desc->duration = wl->p2p->noa.desc[0].duration;
noa_desc->interval = wl->p2p->noa.desc[0].interval;
noa_desc->start = wl->p2p->noa.desc[0].start;
len += sizeof(wifi_p2p_noa_desc_t);
}
if (buf_len <= len * 2) {
CFGP2P_ERR(("ERROR: buf_len %d in not enough for"
"returning noa in string format\n", buf_len));
return -1;
}
/* We have to convert the buffer data into ASCII strings */
for (i = 0; i < len; i++) {
sprintf(buf, "%02x", _buf[i]);
buf += 2;
}
buf[i*2] = '\0';
}
}
else {
CFGP2P_ERR(("ERROR: get_noa in non-p2p mode\n"));
return -1;
}
return len * 2;
}
s32
wl_cfgp2p_set_p2p_ps(struct wl_priv *wl, struct net_device *ndev, char* buf, int len)
{
int ps, ctw;
int ret = -1;
s32 legacy_ps;
CFGP2P_DBG((" Enter\n"));
if (wl->p2p && wl->p2p->vif_created) {
sscanf(buf, "%d %d %d", &legacy_ps, &ps, &ctw);
CFGP2P_DBG((" Enter legacy_ps %d ps %d ctw %d\n", legacy_ps, ps, ctw));
if (ctw != -1) {
wl->p2p->ops.ctw = ctw;
ret = 0;
}
if (ps != -1) {
wl->p2p->ops.ops = ps;
ret = wldev_iovar_setbuf(wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_CONNECTION),
"p2p_ops", &wl->p2p->ops, sizeof(wl->p2p->ops),
wl->ioctl_buf, WLC_IOCTL_MAXLEN, &wl->ioctl_buf_sync);
if (ret < 0) {
CFGP2P_ERR(("fw set p2p_ops failed %d\n", ret));
}
}
if ((legacy_ps != -1) && ((legacy_ps == PM_MAX) || (legacy_ps == PM_OFF))) {
ret = wldev_ioctl(wl_to_p2p_bss_ndev(wl, P2PAPI_BSSCFG_CONNECTION),
WLC_SET_PM, &legacy_ps, sizeof(legacy_ps), true);
if (unlikely(ret)) {
CFGP2P_ERR(("error (%d)\n", ret));
}
}
else
CFGP2P_ERR(("ilegal setting\n"));
}
else {
CFGP2P_ERR(("ERROR: set_p2p_ps in non-p2p mode\n"));
ret = -1;
}
return ret;
}
u8 *
wl_cfgp2p_retreive_p2pattrib(void *buf, u8 element_id)
{
wifi_p2p_ie_t *ie = NULL;
u16 len = 0;
u8 *subel;
u8 subelt_id;
u16 subelt_len;
if (!buf) {
WL_ERR(("P2P IE not present"));
return 0;
}
ie = (wifi_p2p_ie_t*) buf;
len = ie->len;
/* Point subel to the P2P IE's subelt field.
* Subtract the preceding fields (id, len, OUI, oui_type) from the length.
*/
subel = ie->subelts;
len -= 4; /* exclude OUI + OUI_TYPE */
while (len >= 3) {
/* attribute id */
subelt_id = *subel;
subel += 1;
len -= 1;
/* 2-byte little endian */
subelt_len = *subel++;
subelt_len |= *subel++ << 8;
len -= 2;
len -= subelt_len; /* for the remaining subelt fields */
if (subelt_id == element_id) {
/* This will point to start of subelement attrib after
* attribute id & len
*/
return subel;
}
/* Go to next subelement */
subel += subelt_len;
}
/* Not Found */
return NULL;
}
#define P2P_GROUP_CAPAB_GO_BIT 0x01
u8 *
wl_cfgp2p_retreive_p2p_dev_addr(wl_bss_info_t *bi, u32 bi_length)
{
wifi_p2p_ie_t * p2p_ie = NULL;
u8 *capability = NULL;
bool p2p_go = 0;
u8 *ptr = NULL;
if (!(p2p_ie = wl_cfgp2p_find_p2pie(((u8 *) bi) + bi->ie_offset, bi->ie_length))) {
WL_ERR(("P2P IE not found"));
return NULL;
}
if (!(capability = wl_cfgp2p_retreive_p2pattrib(p2p_ie, P2P_SEID_P2P_INFO))) {
WL_ERR(("P2P Capability attribute not found"));
return NULL;
}
/* Check Group capability for Group Owner bit */
p2p_go = capability[1] & P2P_GROUP_CAPAB_GO_BIT;
if (!p2p_go) {
return bi->BSSID.octet;
}
/* In probe responses, DEVICE INFO attribute will be present */
if (!(ptr = wl_cfgp2p_retreive_p2pattrib(p2p_ie, P2P_SEID_DEV_INFO))) {
/* If DEVICE_INFO is not found, this might be a beacon frame.
* check for DEVICE_ID in the beacon frame.
*/
ptr = wl_cfgp2p_retreive_p2pattrib(p2p_ie, P2P_SEID_DEV_ID);
}
if (!ptr)
WL_ERR((" Both DEVICE_ID & DEVICE_INFO attribute not present in P2P IE "));
return ptr;
}
s32
wl_cfgp2p_register_ndev(struct wl_priv *wl)
{
int ret = 0;
struct net_device* net = NULL;
struct wireless_dev *wdev;
uint8 temp_addr[ETHER_ADDR_LEN] = { 0x00, 0x90, 0x4c, 0x33, 0x22, 0x11 };
/* Allocate etherdev, including space for private structure */
if (!(net = alloc_etherdev(sizeof(wl)))) {
CFGP2P_ERR(("%s: OOM - alloc_etherdev\n", __FUNCTION__));
goto fail;
}
strcpy(net->name, "p2p%d");
net->name[IFNAMSIZ - 1] = '\0';
/* Copy the reference to wl_priv */
memcpy((void *)netdev_priv(net), &wl, sizeof(wl));
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
ASSERT(!net->open);
net->do_ioctl = wl_cfgp2p_do_ioctl;
net->hard_start_xmit = wl_cfgp2p_start_xmit;
net->open = wl_cfgp2p_if_open;
net->stop = wl_cfgp2p_if_stop;
#else
ASSERT(!net->netdev_ops);
net->netdev_ops = &wl_cfgp2p_if_ops;
#endif
/* Register with a dummy MAC addr */
memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
if (unlikely(!wdev)) {
WL_ERR(("Could not allocate wireless device\n"));
return -ENOMEM;
}
wdev->wiphy = wl->wdev->wiphy;
wdev->iftype = wl_mode_to_nl80211_iftype(WL_MODE_BSS);
net->ieee80211_ptr = wdev;
SET_NETDEV_DEV(net, wiphy_dev(wdev->wiphy));
/* Associate p2p0 network interface with new wdev */
wdev->netdev = net;
/* store p2p net ptr for further reference. Note that iflist won't have this
* entry as there corresponding firmware interface is a "Hidden" interface.
*/
if (wl->p2p_net) {
CFGP2P_ERR(("p2p_net defined already.\n"));
return -EINVAL;
} else {
wl->p2p_wdev = wdev;
wl->p2p_net = net;
}
ret = register_netdev(net);
if (ret) {
CFGP2P_ERR((" register_netdevice failed (%d)\n", ret));
goto fail;
}
printk("%s: P2P Interface Registered\n", net->name);
return ret;
fail:
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
net->open = NULL;
#else
net->netdev_ops = NULL;
#endif
if (net) {
unregister_netdev(net);
free_netdev(net);
}
return -ENODEV;
}
s32
wl_cfgp2p_unregister_ndev(struct wl_priv *wl)
{
if (!wl || !wl->p2p_net) {
CFGP2P_ERR(("Invalid Ptr\n"));
return -EINVAL;
}
unregister_netdev(wl->p2p_net);
free_netdev(wl->p2p_net);
return 0;
}
static int wl_cfgp2p_start_xmit(struct sk_buff *skb, struct net_device *ndev)
{
CFGP2P_DBG(("(%s) is not used for data operations. Droping the packet. \n", ndev->name));
return 0;
}
static int wl_cfgp2p_do_ioctl(struct net_device *net, struct ifreq *ifr, int cmd)
{
int ret = 0;
struct wl_priv *wl = *(struct wl_priv **)netdev_priv(net);
struct net_device *ndev = wl_to_prmry_ndev(wl);
/* There is no ifidx corresponding to p2p0 in our firmware. So we should
* not Handle any IOCTL cmds on p2p0 other than ANDROID PRIVATE CMDs.
* For Android PRIV CMD handling map it to primary I/F
*/
if (cmd == SIOCDEVPRIVATE+1) {
ret = wl_android_priv_cmd(ndev, ifr, cmd);
} else {
CFGP2P_ERR(("%s: IOCTL req 0x%x on p2p0 I/F. Ignoring. \n",
__FUNCTION__, cmd));
return -1;
}
return ret;
}
static int wl_cfgp2p_if_open(struct net_device *net)
{
struct wireless_dev *wdev = net->ieee80211_ptr;
if (!wdev)
return -EINVAL;
/* If suppose F/W download (ifconfig wlan0 up) hasn't been done by now,
* do it here. This will make sure that in concurrent mode, supplicant
* is not dependent on a particular order of interface initialization.
* i.e you may give wpa_supp -iwlan0 -N -ip2p0 or wpa_supp -ip2p0 -N
* -iwlan0.
*/
wl_cfg80211_do_driver_init(net);
wdev->wiphy->interface_modes |= (BIT(NL80211_IFTYPE_P2P_CLIENT)
| BIT(NL80211_IFTYPE_P2P_GO));
return 0;
}
static int wl_cfgp2p_if_stop(struct net_device *net)
{
struct wireless_dev *wdev = net->ieee80211_ptr;
if (!wdev)
return -EINVAL;
wdev->wiphy->interface_modes = (wdev->wiphy->interface_modes)
& (~(BIT(NL80211_IFTYPE_P2P_CLIENT)|
BIT(NL80211_IFTYPE_P2P_GO)));
return 0;
}
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