[PATCH] wireless: Add softmac layer to the kernel

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 206 insertions, 0 deletions

diff --git a/net/ieee80211/softmac/ieee80211softmac_priv.h b/net/ieee80211/softmac/ieee80211softmac_priv.h
new file mode 100644
index 000000000000..591d3bdf37ee
--- /dev/null
+++ b/net/ieee80211/softmac/ieee80211softmac_priv.h
@@ -0,0 +1,206 @@
+#ifndef IEEE80211SOFTMAC_PRIV_H_
+#define IEEE80211SOFTMAC_PRIV_H_
+
+#include <net/ieee80211softmac.h>
+#include <net/ieee80211softmac_wx.h>
+#include <linux/kernel.h>
+#include <linux/stringify.h>
+
+
+#define PFX				"SoftMAC: "
+
+#ifdef assert
+# undef assert
+#endif
+#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
+#define assert(expr) \
+	do {										\
+		if (unlikely(!(expr))) {						\
+		printkl(KERN_ERR PFX "ASSERTION FAILED (%s) at: %s:%d:%s()\n", #expr,	\
+			__FILE__, __LINE__, __FUNCTION__);				\
+		}									\
+	} while (0)
+#else
+#define assert(expr) do {} while (0)
+#endif
+
+/* rate limited printk(). */
+#ifdef printkl
+# undef printkl
+#endif
+#define printkl(f, x...)  do { if (printk_ratelimit()) printk(f ,##x); } while (0)
+/* rate limited printk() for debugging */
+#ifdef dprintkl
+# undef dprintkl
+#endif
+#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
+# define dprintkl		printkl
+#else
+# define dprintkl(f, x...)	do { /* nothing */ } while (0)
+#endif
+
+/* debugging printk() */
+#ifdef dprintk
+# undef dprintk
+#endif
+#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
+# define dprintk(f, x...)  do { printk(f ,##x); } while (0)
+#else
+# define dprintk(f, x...)  do { /* nothing */ } while (0)
+#endif
+
+#ifdef function_enter
+# undef function_enter
+#endif
+#ifdef CONFIG_IEEE80211_SOFTMAC_DEBUG
+# define function_enter() do { printk(KERN_DEBUG PFX "%s:%d:%s()\n", __FILE__, __LINE__, __FUNCTION__); } while (0)
+#else
+# define function_enter() do { /* nothing */ } while (0)
+#endif
+
+/* private definitions and prototypes */
+
+/*** prototypes from _scan.c */
+void ieee80211softmac_scan(void *sm);
+/* for internal use if scanning is needed */
+int ieee80211softmac_start_scan(struct ieee80211softmac_device *mac);
+void ieee80211softmac_stop_scan(struct ieee80211softmac_device *mac);
+void ieee80211softmac_wait_for_scan(struct ieee80211softmac_device *mac);
+
+/* for use by _module.c to assign to the callbacks */
+int ieee80211softmac_start_scan_implementation(struct net_device *dev);
+void ieee80211softmac_stop_scan_implementation(struct net_device *dev);
+void ieee80211softmac_wait_for_scan_implementation(struct net_device *dev);
+
+/*** Network prototypes from _module.c */
+struct ieee80211softmac_network * ieee80211softmac_create_network(
+	struct ieee80211softmac_device *mac, struct ieee80211_network *net);
+void ieee80211softmac_add_network_locked(struct ieee80211softmac_device *mac,
+	struct ieee80211softmac_network *net);
+void ieee80211softmac_add_network(struct ieee80211softmac_device *mac,
+	struct ieee80211softmac_network *net);
+void ieee80211softmac_del_network_locked(struct ieee80211softmac_device *mac,
+	struct ieee80211softmac_network *net);
+void ieee80211softmac_del_network(struct ieee80211softmac_device *mac,
+	struct ieee80211softmac_network *net);
+struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid_locked(
+	struct ieee80211softmac_device *mac, u8 *ea);
+struct ieee80211softmac_network * ieee80211softmac_get_network_by_bssid(
+	struct ieee80211softmac_device *mac, u8 *ea);
+struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid_locked(
+	struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len);
+struct ieee80211softmac_network * ieee80211softmac_get_network_by_ssid(
+	struct ieee80211softmac_device *mac, u8 *ssid, u8 ssid_len);
+
+
+/* Rates related */
+u8 ieee80211softmac_lower_rate_delta(struct ieee80211softmac_device *mac, u8 rate, int delta);
+static inline u8 lower_rate(struct ieee80211softmac_device *mac, u8 rate) {
+	return ieee80211softmac_lower_rate_delta(mac, rate, 1);
+}
+
+static inline u8 get_fallback_rate(struct ieee80211softmac_device *mac, u8 rate)
+{
+	return ieee80211softmac_lower_rate_delta(mac, rate, 2);
+}
+                
+
+/*** prototypes from _io.c */
+int ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
+	void* ptrarg, u32 type, u32 arg);
+
+/*** prototypes from _auth.c */
+/* do these have to go into the public header? */
+int ieee80211softmac_auth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net);
+int ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net, int reason);
+
+/* for use by _module.c to assign to the callbacks */
+int ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth);
+int ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_auth *auth);
+
+/*** prototypes from _assoc.c */
+void ieee80211softmac_assoc_work(void *d);
+int ieee80211softmac_handle_assoc_response(struct net_device * dev,
+					   struct ieee80211_assoc_response * resp,
+					   struct ieee80211_network * network);
+int ieee80211softmac_handle_disassoc(struct net_device * dev,
+				     struct ieee80211_disassoc * disassoc);
+void ieee80211softmac_assoc_timeout(void *d);
+
+/* some helper functions */
+static inline int ieee80211softmac_scan_handlers_check_self(struct ieee80211softmac_device *sm)
+{
+	return (sm->start_scan == ieee80211softmac_start_scan_implementation) && 
+		(sm->stop_scan == ieee80211softmac_stop_scan_implementation) && 
+		(sm->wait_for_scan == ieee80211softmac_wait_for_scan_implementation);
+}
+
+static inline int ieee80211softmac_scan_sanity_check(struct ieee80211softmac_device *sm)
+{
+	return ((sm->start_scan != ieee80211softmac_start_scan_implementation) && 
+		(sm->stop_scan != ieee80211softmac_stop_scan_implementation) && 
+		(sm->wait_for_scan != ieee80211softmac_wait_for_scan_implementation)
+		) || ieee80211softmac_scan_handlers_check_self(sm);
+}
+
+#define IEEE80211SOFTMAC_PROBE_DELAY		HZ/2
+#define IEEE80211SOFTMAC_WORKQUEUE_NAME_LEN	(17 + IFNAMSIZ)
+
+struct ieee80211softmac_network {
+	struct list_head		list;	/* List */
+	/* Network information copied from ieee80211_network */
+	u8 bssid[ETH_ALEN];
+	u8 channel;
+	struct ieee80211softmac_essid essid;
+
+	struct ieee80211softmac_ratesinfo supported_rates;
+
+	/* SoftMAC specific */
+	u16 authenticating:1,			/* Status Flags */
+	    authenticated:1,
+	    auth_desynced_once:1;
+
+	u16 capabilities;			/* Capabilities bitfield */
+	u8 challenge_len;			/* Auth Challenge length */
+	char *challenge;			/* Challenge Text */
+};
+
+/* structure used to keep track of networks we're auth'ing to */
+struct ieee80211softmac_auth_queue_item {
+	struct list_head		list;	/* List head */
+	struct ieee80211softmac_network	*net;	/* Network to auth */
+	struct ieee80211softmac_device	*mac;	/* SoftMAC device */
+	u8 retry;				/* Retry limit */
+	u8 state;				/* Auth State */
+	struct work_struct		work;	/* Work queue */
+};
+
+/* scanning information */
+struct ieee80211softmac_scaninfo {
+	u8 current_channel_idx,
+	   number_channels;
+	struct ieee80211_channel *channels;
+	u8 started:1,
+	   stop:1;
+	u8 skip_flags;
+	struct completion finished;
+	struct work_struct softmac_scan;
+};
+
+/* private event struct */
+struct ieee80211softmac_event {
+	struct list_head list;
+	int event_type;
+	void *event_context;
+	struct work_struct work;
+	notify_function_ptr fun;
+	void *context;
+	struct ieee80211softmac_device *mac;
+};
+
+void ieee80211softmac_call_events(struct ieee80211softmac_device *mac, int event, void *event_context);
+void ieee80211softmac_call_events_locked(struct ieee80211softmac_device *mac, int event, void *event_context);
+int ieee80211softmac_notify_internal(struct ieee80211softmac_device *mac,
+	int event, void *event_context, notify_function_ptr fun, void *context, gfp_t gfp_mask);
+
+#endif /* IEEE80211SOFTMAC_PRIV_H_ */