146 lines
4.6 KiB
C
146 lines
4.6 KiB
C
/*
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* cfg80211 MLME SAP interface
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*
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* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/nl80211.h>
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#include <net/cfg80211.h>
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#include "core.h"
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#include "nl80211.h"
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void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
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{
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struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
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struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
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nl80211_send_rx_auth(rdev, dev, buf, len, gfp);
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cfg80211_sme_rx_auth(dev, buf, len);
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}
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EXPORT_SYMBOL(cfg80211_send_rx_auth);
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void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
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{
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u16 status_code;
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struct wireless_dev *wdev = dev->ieee80211_ptr;
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struct wiphy *wiphy = wdev->wiphy;
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struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
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struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
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u8 *ie = mgmt->u.assoc_resp.variable;
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int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
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status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
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nl80211_send_rx_assoc(rdev, dev, buf, len, gfp);
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cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
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status_code, gfp);
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}
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EXPORT_SYMBOL(cfg80211_send_rx_assoc);
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void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
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{
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struct wireless_dev *wdev = dev->ieee80211_ptr;
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struct wiphy *wiphy = wdev->wiphy;
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struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
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struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
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nl80211_send_deauth(rdev, dev, buf, len, gfp);
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if (wdev->sme_state == CFG80211_SME_CONNECTED) {
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u16 reason_code;
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bool from_ap;
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reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
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from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0;
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__cfg80211_disconnected(dev, gfp, NULL, 0,
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reason_code, from_ap);
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wdev->sme_state = CFG80211_SME_IDLE;
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} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
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cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
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WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
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}
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}
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EXPORT_SYMBOL(cfg80211_send_deauth);
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void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
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{
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struct wireless_dev *wdev = dev->ieee80211_ptr;
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struct wiphy *wiphy = wdev->wiphy;
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struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
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struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
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nl80211_send_disassoc(rdev, dev, buf, len, gfp);
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if (wdev->sme_state == CFG80211_SME_CONNECTED) {
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u16 reason_code;
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bool from_ap;
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reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
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from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0;
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__cfg80211_disconnected(dev, gfp, NULL, 0,
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reason_code, from_ap);
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wdev->sme_state = CFG80211_SME_IDLE;
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}
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}
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EXPORT_SYMBOL(cfg80211_send_disassoc);
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void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
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{
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struct wireless_dev *wdev = dev->ieee80211_ptr;
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struct wiphy *wiphy = wdev->wiphy;
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struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
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nl80211_send_auth_timeout(rdev, dev, addr, gfp);
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if (wdev->sme_state == CFG80211_SME_CONNECTING)
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cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
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WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
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wdev->sme_state = CFG80211_SME_IDLE;
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}
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EXPORT_SYMBOL(cfg80211_send_auth_timeout);
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void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
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{
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struct wireless_dev *wdev = dev->ieee80211_ptr;
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struct wiphy *wiphy = wdev->wiphy;
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struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
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nl80211_send_assoc_timeout(rdev, dev, addr, gfp);
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if (wdev->sme_state == CFG80211_SME_CONNECTING)
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cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
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WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
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wdev->sme_state = CFG80211_SME_IDLE;
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}
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EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
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void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
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enum nl80211_key_type key_type, int key_id,
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const u8 *tsc, gfp_t gfp)
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{
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struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
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struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
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#ifdef CONFIG_WIRELESS_EXT
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union iwreq_data wrqu;
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char *buf = kmalloc(128, gfp);
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if (buf) {
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sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
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"keyid=%d %scast addr=%pM)", key_id,
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key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni",
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addr);
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memset(&wrqu, 0, sizeof(wrqu));
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wrqu.data.length = strlen(buf);
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wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
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kfree(buf);
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}
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#endif
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nl80211_michael_mic_failure(rdev, dev, addr, key_type, key_id, tsc, gfp);
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}
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EXPORT_SYMBOL(cfg80211_michael_mic_failure);
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