[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>

2 files changed, 56 insertions, 77 deletions

diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h
index ce966b7ff563..d8bb8f74ed7b 100644
--- a/include/net/ieee80211.h
+++ b/include/net/ieee80211.h
@@ -20,8 +20,8 @@
  */
 #ifndef IEEE80211_H
 #define IEEE80211_H
-#include <linux/if_ether.h> /* ETH_ALEN */
-#include <linux/kernel.h>   /* ARRAY_SIZE */
+#include <linux/if_ether.h>     /* ETH_ALEN */
+#include <linux/kernel.h>       /* ARRAY_SIZE */
 #include <linux/wireless.h>
 
 #define IEEE80211_DATA_LEN              2304
@@ -33,7 +33,6 @@
    represents the 2304 bytes of real data, plus a possible 8 bytes of
    WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
 
-
 #define IEEE80211_HLEN                  30
 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 
@@ -117,7 +116,6 @@ struct ieee80211_hdr_3addr {
 #define IEEE80211_SCTL_FRAG             0x000F
 #define IEEE80211_SCTL_SEQ              0xFFF0
 
-
 /* debug macros */
 
 #ifdef CONFIG_IEEE80211_DEBUG
@@ -128,8 +126,7 @@ do { if (ieee80211_debug_level & (level)) \
          in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
 #else
 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
-#endif  /* CONFIG_IEEE80211_DEBUG */
-
+#endif                          /* CONFIG_IEEE80211_DEBUG */
 
 /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */
 
@@ -140,7 +137,6 @@ do { if (ieee80211_debug_level & (level)) \
  * messages. It should never be used for passing essid to user space. */
 const char *escape_essid(const char *essid, u8 essid_len);
 
-
 /*
  * To use the debug system:
  *
@@ -192,7 +188,7 @@ const char *escape_essid(const char *essid, u8 essid_len);
 #define IEEE80211_DEBUG_RX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
 #include <linux/netdevice.h>
 #include <linux/wireless.h>
-#include <linux/if_arp.h> /* ARPHRD_ETHER */
+#include <linux/if_arp.h>       /* ARPHRD_ETHER */
 
 #ifndef WIRELESS_SPY
 #define WIRELESS_SPY            /* enable iwspy support */
@@ -200,10 +196,10 @@ const char *escape_essid(const char *essid, u8 essid_len);
 #include <net/iw_handler.h>     /* new driver API */
 
 #ifndef ETH_P_PAE
-#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
-#endif /* ETH_P_PAE */
+#define ETH_P_PAE 0x888E        /* Port Access Entity (IEEE 802.1X) */
+#endif                          /* ETH_P_PAE */
 
-#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
+#define ETH_P_PREAUTH 0x88C7    /* IEEE 802.11i pre-authentication */
 
 #ifndef ETH_P_80211_RAW
 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
@@ -215,10 +211,10 @@ const char *escape_essid(const char *essid, u8 essid_len);
 
 struct ieee80211_snap_hdr {
 
-        u8    dsap;   /* always 0xAA */
-        u8    ssap;   /* always 0xAA */
-        u8    ctrl;   /* always 0x03 */
-        u8    oui[P80211_OUI_LEN];    /* organizational universal id */
+        u8 dsap;                /* always 0xAA */
+        u8 ssap;                /* always 0xAA */
+        u8 ctrl;                /* always 0x03 */
+        u8 oui[P80211_OUI_LEN]; /* organizational universal id */
 
 } __attribute__ ((packed));
 
@@ -312,14 +308,12 @@ enum ieee80211_reasoncode {
         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
 };
 
-
 #define IEEE80211_STATMASK_SIGNAL (1<<0)
 #define IEEE80211_STATMASK_RSSI (1<<1)
 #define IEEE80211_STATMASK_NOISE (1<<2)
 #define IEEE80211_STATMASK_RATE (1<<3)
 #define IEEE80211_STATMASK_WEMASK 0x7
 
-
 #define IEEE80211_CCK_MODULATION    (1<<0)
 #define IEEE80211_OFDM_MODULATION   (1<<1)
 
@@ -377,9 +371,6 @@ enum ieee80211_reasoncode {
 #define IEEE80211_NUM_CCK_RATES             4
 #define IEEE80211_OFDM_SHIFT_MASK_A         4
 
-
-
-
 /* NOTE: This data is for statistical purposes; not all hardware provides this
  *       information for frames received.  Not setting these will not cause
  *       any adverse affects. */
@@ -388,7 +379,7 @@ struct ieee80211_rx_stats {
         s8 rssi;
         u8 signal;
         u8 noise;
-        u16 rate; /* in 100 kbps */
+        u16 rate;               /* in 100 kbps */
         u8 received_channel;
         u8 control;
         u8 mask;
@@ -449,28 +440,24 @@ struct ieee80211_device;
 #define SEC_LEVEL         (1<<7)
 #define SEC_ENABLED       (1<<8)
 
-#define SEC_LEVEL_0      0 /* None */
-#define SEC_LEVEL_1      1 /* WEP 40 and 104 bit */
-#define SEC_LEVEL_2      2 /* Level 1 + TKIP */
-#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
-#define SEC_LEVEL_3      4 /* Level 2 + CCMP */
+#define SEC_LEVEL_0      0      /* None */
+#define SEC_LEVEL_1      1      /* WEP 40 and 104 bit */
+#define SEC_LEVEL_2      2      /* Level 1 + TKIP */
+#define SEC_LEVEL_2_CKIP 3      /* Level 1 + CKIP */
+#define SEC_LEVEL_3      4      /* Level 2 + CCMP */
 
 #define WEP_KEYS 4
 #define WEP_KEY_LEN 13
 
 struct ieee80211_security {
         u16 active_key:2,
-            enabled:1,
-            auth_mode:2,
-            auth_algo:4,
-            unicast_uses_group:1;
+            enabled:1, auth_mode:2, auth_algo:4, unicast_uses_group:1;
         u8 key_sizes[WEP_KEYS];
         u8 keys[WEP_KEYS][WEP_KEY_LEN];
         u8 level;
         u16 flags;
 } __attribute__ ((packed));
 
-
 /*
 
  802.11 data frame from AP
@@ -494,7 +481,7 @@ enum ieee80211_mfie {
         MFIE_TYPE_RATES = 1,
         MFIE_TYPE_FH_SET = 2,
         MFIE_TYPE_DS_SET = 3,
-        MFIE_TYPE_CF_SET =  4,
+        MFIE_TYPE_CF_SET = 4,
         MFIE_TYPE_TIM = 5,
         MFIE_TYPE_IBSS_SET = 6,
         MFIE_TYPE_COUNTRY = 7,
@@ -554,7 +541,6 @@ struct ieee80211_authentication {
         struct ieee80211_info_element info_element;
 } __attribute__ ((packed));
 
-
 struct ieee80211_probe_response {
         struct ieee80211_hdr_3addr header;
         u32 time_stamp[2];
@@ -575,10 +561,9 @@ struct ieee80211_assoc_response_frame {
         __le16 capability;
         __le16 status;
         __le16 aid;
-        struct ieee80211_info_element info_element; /* supported rates */
+        struct ieee80211_info_element info_element;     /* supported rates */
 } __attribute__ ((packed));
 
-
 struct ieee80211_txb {
         u8 nr_frags;
         u8 encrypted;
@@ -588,7 +573,6 @@ struct ieee80211_txb {
         struct sk_buff *fragments[0];
 };
 
-
 /* SWEEP TABLE ENTRIES NUMBER */
 #define MAX_SWEEP_TAB_ENTRIES             42
 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
@@ -651,7 +635,6 @@ enum ieee80211_state {
 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
 #define DEFAULT_FTS 2346
 
-
 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
 
@@ -669,24 +652,25 @@ struct ieee80211_device {
         int scans;
         int scan_age;
 
-        int iw_mode; /* operating mode (IW_MODE_*) */
+        int iw_mode;            /* operating mode (IW_MODE_*) */
+        struct iw_spy_data spy_data;    /* iwspy support */
 
         spinlock_t lock;
 
-        int tx_headroom; /* Set to size of any additional room needed at front
-                          * of allocated Tx SKBs */
+        int tx_headroom;        /* Set to size of any additional room needed at front
+                                 * of allocated Tx SKBs */
         u32 config;
 
         /* WEP and other encryption related settings at the device level */
-        int open_wep; /* Set to 1 to allow unencrypted frames */
+        int open_wep;           /* Set to 1 to allow unencrypted frames */
 
-        int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
+        int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
                                  * WEP key changes */
 
         /* If the host performs {en,de}cryption, then set to 1 */
         int host_encrypt;
         int host_decrypt;
-        int ieee802_1x; /* is IEEE 802.1X used */
+        int ieee802_1x;         /* is IEEE 802.1X used */
 
         /* WPA data */
         int wpa_enabled;
@@ -698,36 +682,36 @@ struct ieee80211_device {
 
         struct list_head crypt_deinit_list;
         struct ieee80211_crypt_data *crypt[WEP_KEYS];
-        int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
+        int tx_keyidx;          /* default TX key index (crypt[tx_keyidx]) */
         struct timer_list crypt_deinit_timer;
 
-        int bcrx_sta_key; /* use individual keys to override default keys even
-                           * with RX of broad/multicast frames */
+        int bcrx_sta_key;       /* use individual keys to override default keys even
+                                 * with RX of broad/multicast frames */
 
         /* Fragmentation structures */
         struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
         unsigned int frag_next_idx;
-        u16 fts; /* Fragmentation Threshold */
+        u16 fts;                /* Fragmentation Threshold */
 
         /* Association info */
         u8 bssid[ETH_ALEN];
 
         enum ieee80211_state state;
 
-        int mode;       /* A, B, G */
-        int modulation; /* CCK, OFDM */
-        int freq_band;  /* 2.4Ghz, 5.2Ghz, Mixed */
-        int abg_ture;   /* ABG flag              */
+        int mode;               /* A, B, G */
+        int modulation;         /* CCK, OFDM */
+        int freq_band;          /* 2.4Ghz, 5.2Ghz, Mixed */
+        int abg_ture;           /* ABG flag              */
 
         int perfect_rssi;
         int worst_rssi;
 
         /* Callback functions */
-        void (*set_security)(struct net_device *dev,
-                             struct ieee80211_security *sec);
-        int (*hard_start_xmit)(struct ieee80211_txb *txb,
-                               struct net_device *dev);
-        int (*reset_port)(struct net_device *dev);
+        void (*set_security) (struct net_device * dev,
+                              struct ieee80211_security * sec);
+        int (*hard_start_xmit) (struct ieee80211_txb * txb,
+                                struct net_device * dev);
+        int (*reset_port) (struct net_device * dev);
 
         /* This must be the last item so that it points to the data
          * allocated beyond this structure by alloc_ieee80211 */
@@ -760,7 +744,8 @@ extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
         return 1;
 }
 
-extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode)
+extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
+                                          int mode)
 {
         /*
          * It is possible for both access points and our device to support
@@ -811,8 +796,6 @@ extern inline int ieee80211_get_hdrlen(u16 fc)
         return hdrlen;
 }
 
-
-
 /* ieee80211.c */
 extern void free_ieee80211(struct net_device *dev);
 extern struct net_device *alloc_ieee80211(int sizeof_priv);
@@ -820,11 +803,9 @@ extern struct net_device *alloc_ieee80211(int sizeof_priv);
 extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
 
 /* ieee80211_tx.c */
-extern int ieee80211_xmit(struct sk_buff *skb,
-                          struct net_device *dev);
+extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
 extern void ieee80211_txb_free(struct ieee80211_txb *);
 
-
 /* ieee80211_rx.c */
 extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
                         struct ieee80211_rx_stats *rx_stats);
@@ -843,7 +824,6 @@ extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
                                    struct iw_request_info *info,
                                    union iwreq_data *wrqu, char *key);
 
-
 extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
 {
         ieee->scans++;
@@ -854,5 +834,4 @@ extern inline int ieee80211_get_scans(struct ieee80211_device *ieee)
         return ieee->scans;
 }
 
-
-#endif /* IEEE80211_H */
+#endif                          /* IEEE80211_H */
diff --git a/include/net/ieee80211_crypt.h b/include/net/ieee80211_crypt.h
index b58a3bcc0dc0..93bf91fda82e 100644
--- a/include/net/ieee80211_crypt.h
+++ b/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,