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/*
* SME code for cfg80211's connect emulation.
*
* Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*/
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <linux/workqueue.h>
#include <net/cfg80211.h>
#include <net/rtnetlink.h>
#include "nl80211.h"
void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
const u8 *req_ie, size_t req_ie_len,
const u8 *resp_ie, size_t resp_ie_len,
u16 status, gfp_t gfp)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_bss *bss;
#ifdef CONFIG_WIRELESS_EXT
union iwreq_data wrqu;
#endif
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
return;
if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING))
return;
if (wdev->current_bss) {
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(wdev->current_bss);
wdev->current_bss = NULL;
}
if (status == WLAN_STATUS_SUCCESS) {
bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
wdev->ssid, wdev->ssid_len,
WLAN_CAPABILITY_ESS,
WLAN_CAPABILITY_ESS);
if (WARN_ON(!bss))
return;
cfg80211_hold_bss(bss);
wdev->current_bss = bss;
wdev->sme_state = CFG80211_SME_CONNECTED;
} else {
wdev->sme_state = CFG80211_SME_IDLE;
}
nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, bssid,
req_ie, req_ie_len, resp_ie, resp_ie_len,
status, gfp);
#ifdef CONFIG_WIRELESS_EXT
if (req_ie && status == WLAN_STATUS_SUCCESS) {
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = req_ie_len;
wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, req_ie);
}
if (resp_ie && status == WLAN_STATUS_SUCCESS) {
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = resp_ie_len;
wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie);
}
memset(&wrqu, 0, sizeof(wrqu));
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
if (bssid)
memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
#endif
}
EXPORT_SYMBOL(cfg80211_connect_result);
void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
const u8 *req_ie, size_t req_ie_len,
const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_bss *bss;
#ifdef CONFIG_WIRELESS_EXT
union iwreq_data wrqu;
#endif
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
return;
if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED))
return;
/* internal error -- how did we get to CONNECTED w/o BSS? */
if (WARN_ON(!wdev->current_bss)) {
return;
}
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(wdev->current_bss);
wdev->current_bss = NULL;
bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
wdev->ssid, wdev->ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
if (WARN_ON(!bss))
return;
cfg80211_hold_bss(bss);
wdev->current_bss = bss;
nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), dev, bssid,
req_ie, req_ie_len, resp_ie, resp_ie_len, gfp);
#ifdef CONFIG_WIRELESS_EXT
if (req_ie) {
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = req_ie_len;
wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, req_ie);
}
if (resp_ie) {
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = resp_ie_len;
wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie);
}
memset(&wrqu, 0, sizeof(wrqu));
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
#endif
}
EXPORT_SYMBOL(cfg80211_roamed);
static void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp,
u8 *ie, size_t ie_len, u16 reason,
bool from_ap)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
#ifdef CONFIG_WIRELESS_EXT
union iwreq_data wrqu;
#endif
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
return;
if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED))
return;
if (wdev->current_bss) {
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(wdev->current_bss);
}
wdev->current_bss = NULL;
wdev->sme_state = CFG80211_SME_IDLE;
nl80211_send_disconnected(wiphy_to_dev(wdev->wiphy), dev,
reason, ie, ie_len, from_ap, gfp);
#ifdef CONFIG_WIRELESS_EXT
memset(&wrqu, 0, sizeof(wrqu));
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
#endif
}
void cfg80211_disconnected(struct net_device *dev, u16 reason,
u8 *ie, size_t ie_len, gfp_t gfp)
{
__cfg80211_disconnected(dev, reason, ie, ie_len, true, gfp);
}
EXPORT_SYMBOL(cfg80211_disconnected);
int cfg80211_connect(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct cfg80211_connect_params *connect)
{
int err;
struct wireless_dev *wdev = dev->ieee80211_ptr;
if (wdev->sme_state != CFG80211_SME_IDLE)
return -EALREADY;
if (!rdev->ops->connect) {
return -EOPNOTSUPP;
} else {
wdev->sme_state = CFG80211_SME_CONNECTING;
err = rdev->ops->connect(&rdev->wiphy, dev, connect);
if (err) {
wdev->sme_state = CFG80211_SME_IDLE;
return err;
}
}
memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
wdev->ssid_len = connect->ssid_len;
return 0;
}
int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
struct net_device *dev, u16 reason)
{
int err;
if (!rdev->ops->disconnect) {
return -EOPNOTSUPP;
} else {
err = rdev->ops->disconnect(&rdev->wiphy, dev, reason);
if (err)
return err;
}
__cfg80211_disconnected(dev, 0, NULL, 0, false, GFP_KERNEL);
return 0;
}
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