[PATCH] ieee80211 Added wireless spy support

Added wireless spy support to Rx code path.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>

NOTE:  Looks like scripts/Lindent generated output different
than the Lindented version already in-kernel, hence all the
whitespace deltas...  *sigh*
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

include/net/ieee80211_crypt.h

@@ -31,10 +31,10 @@ struct ieee80211_crypto_ops {
 	/* init new crypto context (e.g., allocate private data space,
 	 * select IV, etc.); returns NULL on failure or pointer to allocated
 	 * private data on success */
-	void * (*init)(int keyidx);
+	void *(*init) (int keyidx);
 
 	/* deinitialize crypto context and free allocated private data */
-	void (*deinit)(void *priv);
+	void (*deinit) (void *priv);
 
 	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
 	 * value from decrypt_mpdu is passed as the keyidx value for
@@ -42,21 +42,21 @@ struct ieee80211_crypto_ops {
 	 * encryption; if not, error will be returned; these functions are
 	 * called for all MPDUs (i.e., fragments).
 	 */
-	int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
-	int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
+	int (*encrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
+	int (*decrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
 
 	/* These functions are called for full MSDUs, i.e. full frames.
 	 * These can be NULL if full MSDU operations are not needed. */
-	int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
-	int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
-			    void *priv);
+	int (*encrypt_msdu) (struct sk_buff * skb, int hdr_len, void *priv);
+	int (*decrypt_msdu) (struct sk_buff * skb, int keyidx, int hdr_len,
+			     void *priv);
 
-	int (*set_key)(void *key, int len, u8 *seq, void *priv);
-	int (*get_key)(void *key, int len, u8 *seq, void *priv);
+	int (*set_key) (void *key, int len, u8 * seq, void *priv);
+	int (*get_key) (void *key, int len, u8 * seq, void *priv);
 
 	/* procfs handler for printing out key information and possible
 	 * statistics */
-	char * (*print_stats)(char *p, void *priv);
+	char *(*print_stats) (char *p, void *priv);
 
 	/* maximum number of bytes added by encryption; encrypt buf is
 	 * allocated with extra_prefix_len bytes, copy of in_buf, and
@@ -69,7 +69,7 @@ struct ieee80211_crypto_ops {
 };
 
 struct ieee80211_crypt_data {
-	struct list_head list; /* delayed deletion list */
+	struct list_head list;	/* delayed deletion list */
 	struct ieee80211_crypto_ops *ops;
 	void *priv;
 	atomic_t refcnt;
@@ -77,7 +77,7 @@ struct ieee80211_crypt_data {
 
 int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops);
 int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops);
-struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name);
+struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name);
 void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int);
 void ieee80211_crypt_deinit_handler(unsigned long);
 void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,

net/ieee80211/ieee80211_crypt.c

@@ -191,18 +191,18 @@ static void ieee80211_crypt_null_deinit(void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_null = {
-	.name			= "NULL",
-	.init			= ieee80211_crypt_null_init,
-	.deinit			= ieee80211_crypt_null_deinit,
-	.encrypt_mpdu		= NULL,
-	.decrypt_mpdu		= NULL,
-	.encrypt_msdu		= NULL,
-	.decrypt_msdu		= NULL,
-	.set_key		= NULL,
-	.get_key		= NULL,
-	.extra_prefix_len	= 0,
-	.extra_postfix_len	= 0,
-	.owner			= THIS_MODULE,
+	.name = "NULL",
+	.init = ieee80211_crypt_null_init,
+	.deinit = ieee80211_crypt_null_deinit,
+	.encrypt_mpdu = NULL,
+	.decrypt_mpdu = NULL,
+	.encrypt_msdu = NULL,
+	.decrypt_msdu = NULL,
+	.set_key = NULL,
+	.get_key = NULL,
+	.extra_prefix_len = 0,
+	.extra_postfix_len = 0,
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_init(void)

net/ieee80211/ieee80211_crypt_ccmp.c

@@ -426,19 +426,19 @@ static char *ieee80211_ccmp_print_stats(char *p, void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = {
-	.name			= "CCMP",
-	.init			= ieee80211_ccmp_init,
-	.deinit			= ieee80211_ccmp_deinit,
-	.encrypt_mpdu		= ieee80211_ccmp_encrypt,
-	.decrypt_mpdu		= ieee80211_ccmp_decrypt,
-	.encrypt_msdu		= NULL,
-	.decrypt_msdu		= NULL,
-	.set_key		= ieee80211_ccmp_set_key,
-	.get_key		= ieee80211_ccmp_get_key,
-	.print_stats		= ieee80211_ccmp_print_stats,
-	.extra_prefix_len	= CCMP_HDR_LEN,
-	.extra_postfix_len	= CCMP_MIC_LEN,
-	.owner			= THIS_MODULE,
+	.name = "CCMP",
+	.init = ieee80211_ccmp_init,
+	.deinit = ieee80211_ccmp_deinit,
+	.encrypt_mpdu = ieee80211_ccmp_encrypt,
+	.decrypt_mpdu = ieee80211_ccmp_decrypt,
+	.encrypt_msdu = NULL,
+	.decrypt_msdu = NULL,
+	.set_key = ieee80211_ccmp_set_key,
+	.get_key = ieee80211_ccmp_get_key,
+	.print_stats = ieee80211_ccmp_print_stats,
+	.extra_prefix_len = CCMP_HDR_LEN,
+	.extra_postfix_len = CCMP_MIC_LEN,
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_ccmp_init(void)

net/ieee80211/ieee80211_crypt_tkip.c

@@ -654,19 +654,19 @@ static char *ieee80211_tkip_print_stats(char *p, void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_tkip = {
-	.name			= "TKIP",
-	.init			= ieee80211_tkip_init,
-	.deinit			= ieee80211_tkip_deinit,
-	.encrypt_mpdu		= ieee80211_tkip_encrypt,
-	.decrypt_mpdu		= ieee80211_tkip_decrypt,
-	.encrypt_msdu		= ieee80211_michael_mic_add,
-	.decrypt_msdu		= ieee80211_michael_mic_verify,
-	.set_key		= ieee80211_tkip_set_key,
-	.get_key		= ieee80211_tkip_get_key,
-	.print_stats		= ieee80211_tkip_print_stats,
-	.extra_prefix_len	= 4 + 4,	/* IV + ExtIV */
-	.extra_postfix_len	= 8 + 4,	/* MIC + ICV */
-	.owner			= THIS_MODULE,
+	.name = "TKIP",
+	.init = ieee80211_tkip_init,
+	.deinit = ieee80211_tkip_deinit,
+	.encrypt_mpdu = ieee80211_tkip_encrypt,
+	.decrypt_mpdu = ieee80211_tkip_decrypt,
+	.encrypt_msdu = ieee80211_michael_mic_add,
+	.decrypt_msdu = ieee80211_michael_mic_verify,
+	.set_key = ieee80211_tkip_set_key,
+	.get_key = ieee80211_tkip_get_key,
+	.print_stats = ieee80211_tkip_print_stats,
+	.extra_prefix_len = 4 + 4,	/* IV + ExtIV */
+	.extra_postfix_len = 8 + 4,	/* MIC + ICV */
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_tkip_init(void)

net/ieee80211/ieee80211_crypt_wep.c

@@ -229,19 +229,19 @@ static char *prism2_wep_print_stats(char *p, void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_wep = {
-	.name			= "WEP",
-	.init			= prism2_wep_init,
-	.deinit			= prism2_wep_deinit,
-	.encrypt_mpdu		= prism2_wep_encrypt,
-	.decrypt_mpdu		= prism2_wep_decrypt,
-	.encrypt_msdu		= NULL,
-	.decrypt_msdu		= NULL,
-	.set_key		= prism2_wep_set_key,
-	.get_key		= prism2_wep_get_key,
-	.print_stats		= prism2_wep_print_stats,
-	.extra_prefix_len	= 4,	/* IV */
-	.extra_postfix_len	= 4,	/* ICV */
-	.owner			= THIS_MODULE,
+	.name = "WEP",
+	.init = prism2_wep_init,
+	.deinit = prism2_wep_deinit,
+	.encrypt_mpdu = prism2_wep_encrypt,
+	.decrypt_mpdu = prism2_wep_decrypt,
+	.encrypt_msdu = NULL,
+	.decrypt_msdu = NULL,
+	.set_key = prism2_wep_set_key,
+	.get_key = prism2_wep_get_key,
+	.print_stats = prism2_wep_print_stats,
+	.extra_prefix_len = 4,	/* IV */
+	.extra_postfix_len = 4,	/* ICV */
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_wep_init(void)

net/ieee80211/ieee80211_rx.c

@@ -378,33 +378,47 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	frag = WLAN_GET_SEQ_FRAG(sc);
 	hdrlen = ieee80211_get_hdrlen(fc);
 
-#ifdef NOT_YET
-#if WIRELESS_EXT > 15
 	/* Put this code here so that we avoid duplicating it in all
 	 * Rx paths. - Jean II */
 #ifdef IW_WIRELESS_SPY		/* defined in iw_handler.h */
 	/* If spy monitoring on */
-	if (iface->spy_data.spy_number > 0) {
+	if (ieee->spy_data.spy_number > 0) {
 		struct iw_quality wstats;
-		wstats.level = rx_stats->signal;
-		wstats.noise = rx_stats->noise;
-		wstats.updated = 6;	/* No qual value */
+
+		wstats.updated = 0;
+		if (rx_stats->mask & IEEE80211_STATMASK_RSSI) {
+			wstats.level = rx_stats->rssi;
+			wstats.updated |= IW_QUAL_LEVEL_UPDATED;
+		} else
+			wstats.updated |= IW_QUAL_LEVEL_INVALID;
+
+		if (rx_stats->mask & IEEE80211_STATMASK_NOISE) {
+			wstats.noise = rx_stats->noise;
+			wstats.updated |= IW_QUAL_NOISE_UPDATED;
+		} else
+			wstats.updated |= IW_QUAL_NOISE_INVALID;
+
+		if (rx_stats->mask & IEEE80211_STATMASK_SIGNAL) {
+			wstats.qual = rx_stats->signal;
+			wstats.updated |= IW_QUAL_QUAL_UPDATED;
+		} else
+			wstats.updated |= IW_QUAL_QUAL_INVALID;
+
 		/* Update spy records */
-		wireless_spy_update(dev, hdr->addr2, &wstats);
+		wireless_spy_update(ieee->dev, hdr->addr2, &wstats);
 	}
 #endif				/* IW_WIRELESS_SPY */
-#endif				/* WIRELESS_EXT > 15 */
+
+#ifdef NOT_YET
 	hostap_update_rx_stats(local->ap, hdr, rx_stats);
 #endif
 
-#if WIRELESS_EXT > 15
 	if (ieee->iw_mode == IW_MODE_MONITOR) {
 		ieee80211_monitor_rx(ieee, skb, rx_stats);
 		stats->rx_packets++;
 		stats->rx_bytes += skb->len;
 		return 1;
 	}
-#endif
 
 	if (ieee->host_decrypt) {
 		int idx = 0;
@@ -771,8 +785,7 @@ static inline int ieee80211_is_ofdm_rate(u8 rate)
 	return 0;
 }
 
-static inline int ieee80211_network_init(struct ieee80211_device *ieee,
-					 struct ieee80211_probe_response
+static inline int ieee80211_network_init(struct ieee80211_device *ieee, struct ieee80211_probe_response
 					 *beacon,
 					 struct ieee80211_network *network,
 					 struct ieee80211_rx_stats *stats)
@@ -1028,11 +1041,9 @@ static inline void update_network(struct ieee80211_network *dst,
 }
 
 static inline void ieee80211_process_probe_response(struct ieee80211_device
-						    *ieee,
-						    struct
+						    *ieee, struct
 						    ieee80211_probe_response
-						    *beacon,
-						    struct ieee80211_rx_stats
+						    *beacon, struct ieee80211_rx_stats
 						    *stats)
 {
 	struct ieee80211_network network;