245 lines
9.2 KiB
C
245 lines
9.2 KiB
C
/*
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* Internal softmac API definitions.
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*
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* Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
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* Joseph Jezak <josejx@gentoo.org>
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* Larry Finger <Larry.Finger@lwfinger.net>
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* Danny van Dyk <kugelfang@gentoo.org>
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* Michael Buesch <mbuesch@freenet.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called COPYING.
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*/
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#ifndef IEEE80211SOFTMAC_PRIV_H_
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#define IEEE80211SOFTMAC_PRIV_H_
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#include <net/ieee80211softmac.h>
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#include <net/ieee80211softmac_wx.h>
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#include <linux/kernel.h>
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#include <linux/stringify.h>
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#define PFX "SoftMAC: "
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#ifdef assert
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# undef assert
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#endif
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#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
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#define assert(expr) \
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do { \
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if (unlikely(!(expr))) { \
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printkl(KERN_ERR PFX "ASSERTION FAILED (%s) at: %s:%d:%s()\n", #expr, \
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__FILE__, __LINE__, __FUNCTION__); \
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} \
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} while (0)
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#else
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#define assert(expr) do {} while (0)
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#endif
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/* rate limited printk(). */
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#ifdef printkl
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# undef printkl
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#endif
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#define printkl(f, x...) do { if (printk_ratelimit()) printk(f ,##x); } while (0)
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/* rate limited printk() for debugging */
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#ifdef dprintkl
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# undef dprintkl
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#endif
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#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
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# define dprintkl printkl
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#else
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# define dprintkl(f, x...) do { /* nothing */ } while (0)
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#endif
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/* debugging printk() */
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#ifdef dprintk
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# undef dprintk
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#endif
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#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
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# define dprintk(f, x...) do { printk(f ,##x); } while (0)
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#else
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# define dprintk(f, x...) do { /* nothing */ } while (0)
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#endif
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/* private definitions and prototypes */
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/*** prototypes from _scan.c */
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void ieee80211softmac_scan(struct work_struct *work);
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/* for internal use if scanning is needed */
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int ieee80211softmac_start_scan(struct ieee80211softmac_device *mac);
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void ieee80211softmac_stop_scan(struct ieee80211softmac_device *mac);
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void ieee80211softmac_wait_for_scan(struct ieee80211softmac_device *mac);
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/* for use by _module.c to assign to the callbacks */
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int ieee80211softmac_start_scan_implementation(struct net_device *dev);
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void ieee80211softmac_stop_scan_implementation(struct net_device *dev);
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void ieee80211softmac_wait_for_scan_implementation(struct net_device *dev);
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/*** Network prototypes from _module.c */
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struct ieee80211softmac_network * ieee80211softmac_create_network(
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struct ieee80211softmac_device *mac, struct ieee80211_network *net);
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void ieee80211softmac_add_network_locked(struct ieee80211softmac_device *mac,
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struct ieee80211softmac_network *net);
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void ieee80211softmac_add_network(struct ieee80211softmac_device *mac,
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struct ieee80211softmac_network *net);
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void ieee80211softmac_del_network_locked(struct ieee80211softmac_device *mac,
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struct ieee80211softmac_network *net);
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void ieee80211softmac_del_network(struct ieee80211softmac_device *mac,
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struct ieee80211softmac_network *net);
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struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid_locked(
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struct ieee80211softmac_device *mac, u8 *ea);
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struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid(
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struct ieee80211softmac_device *mac, u8 *ea);
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struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid_locked(
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struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len);
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struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid(
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struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len);
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struct ieee80211softmac_network *
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ieee80211softmac_get_network_by_essid_locked(struct ieee80211softmac_device *mac,
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struct ieee80211softmac_essid *essid);
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struct ieee80211softmac_network *
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ieee80211softmac_get_network_by_essid(struct ieee80211softmac_device *mac,
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struct ieee80211softmac_essid *essid);
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/* Rates related */
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void ieee80211softmac_process_erp(struct ieee80211softmac_device *mac,
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u8 erp_value);
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int ieee80211softmac_ratesinfo_rate_supported(struct ieee80211softmac_ratesinfo *ri, u8 rate);
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u8 ieee80211softmac_lower_rate_delta(struct ieee80211softmac_device *mac, u8 rate, int delta);
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void ieee80211softmac_init_bss(struct ieee80211softmac_device *mac);
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void ieee80211softmac_recalc_txrates(struct ieee80211softmac_device *mac);
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static inline u8 lower_rate(struct ieee80211softmac_device *mac, u8 rate) {
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return ieee80211softmac_lower_rate_delta(mac, rate, 1);
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}
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static inline u8 get_fallback_rate(struct ieee80211softmac_device *mac, u8 rate)
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{
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return ieee80211softmac_lower_rate_delta(mac, rate, 2);
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}
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/*** prototypes from _io.c */
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int ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
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void* ptrarg, u32 type, u32 arg);
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int ieee80211softmac_handle_beacon(struct net_device *dev,
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struct ieee80211_beacon *beacon,
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struct ieee80211_network *network);
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/*** prototypes from _auth.c */
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/* do these have to go into the public header? */
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int ieee80211softmac_auth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net);
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int ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, int reason);
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/* for use by _module.c to assign to the callbacks */
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int ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth);
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int ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *deauth);
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/*** prototypes from _assoc.c */
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void ieee80211softmac_assoc_work(struct work_struct *work);
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int ieee80211softmac_handle_assoc_response(struct net_device * dev,
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struct ieee80211_assoc_response * resp,
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struct ieee80211_network * network);
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int ieee80211softmac_handle_disassoc(struct net_device * dev,
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struct ieee80211_disassoc * disassoc);
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int ieee80211softmac_handle_reassoc_req(struct net_device * dev,
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struct ieee80211_reassoc_request * reassoc);
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void ieee80211softmac_assoc_timeout(struct work_struct *work);
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void ieee80211softmac_send_disassoc_req(struct ieee80211softmac_device *mac, u16 reason);
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void ieee80211softmac_disassoc(struct ieee80211softmac_device *mac);
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/* some helper functions */
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static inline int ieee80211softmac_scan_handlers_check_self(struct ieee80211softmac_device *sm)
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{
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return (sm->start_scan == ieee80211softmac_start_scan_implementation) &&
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(sm->stop_scan == ieee80211softmac_stop_scan_implementation) &&
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(sm->wait_for_scan == ieee80211softmac_wait_for_scan_implementation);
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}
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static inline int ieee80211softmac_scan_sanity_check(struct ieee80211softmac_device *sm)
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{
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return ((sm->start_scan != ieee80211softmac_start_scan_implementation) &&
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(sm->stop_scan != ieee80211softmac_stop_scan_implementation) &&
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(sm->wait_for_scan != ieee80211softmac_wait_for_scan_implementation)
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) || ieee80211softmac_scan_handlers_check_self(sm);
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}
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#define IEEE80211SOFTMAC_PROBE_DELAY HZ/50
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#define IEEE80211SOFTMAC_WORKQUEUE_NAME_LEN (17 + IFNAMSIZ)
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struct ieee80211softmac_network {
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struct list_head list; /* List */
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/* Network information copied from ieee80211_network */
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u8 bssid[ETH_ALEN];
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u8 channel;
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struct ieee80211softmac_essid essid;
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struct ieee80211softmac_ratesinfo supported_rates;
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/* SoftMAC specific */
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u16 authenticating:1, /* Status Flags */
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authenticated:1,
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auth_desynced_once:1;
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u8 erp_value; /* Saved ERP value */
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u16 capabilities; /* Capabilities bitfield */
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u8 challenge_len; /* Auth Challenge length */
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char *challenge; /* Challenge Text */
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};
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/* structure used to keep track of networks we're auth'ing to */
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struct ieee80211softmac_auth_queue_item {
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struct list_head list; /* List head */
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struct ieee80211softmac_network *net; /* Network to auth */
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struct ieee80211softmac_device *mac; /* SoftMAC device */
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u8 retry; /* Retry limit */
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u8 state; /* Auth State */
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struct delayed_work work; /* Work queue */
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};
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/* scanning information */
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struct ieee80211softmac_scaninfo {
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u8 current_channel_idx,
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number_channels;
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struct ieee80211_channel *channels;
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u8 started:1,
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stop:1;
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u8 skip_flags;
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struct completion finished;
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struct delayed_work softmac_scan;
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struct ieee80211softmac_device *mac;
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};
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/* private event struct */
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struct ieee80211softmac_event {
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struct list_head list;
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int event_type;
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void *event_context;
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struct delayed_work work;
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notify_function_ptr fun;
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void *context;
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struct ieee80211softmac_device *mac;
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};
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void ieee80211softmac_call_events(struct ieee80211softmac_device *mac, int event, void *event_context);
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void ieee80211softmac_call_events_locked(struct ieee80211softmac_device *mac, int event, void *event_context);
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int ieee80211softmac_notify_internal(struct ieee80211softmac_device *mac,
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int event, void *event_context, notify_function_ptr fun, void *context, gfp_t gfp_mask);
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void ieee80211softmac_try_reassoc(struct ieee80211softmac_device *mac);
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#endif /* IEEE80211SOFTMAC_PRIV_H_ */
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