[PATCH] WE-19 for kernel 2.6.13

	Hi Jeff,

	This is version 19 of the Wireless Extensions. It was supposed
to be the fallback of the WPA API changes, but people seem quite happy
about it (especially Jouni), so the patch is rather small.
	The patch has been fully tested with 2.6.13 and various
wireless drivers, and is in its final version. Would you mind pushing
that into Linus's kernel so that the driver and the apps can take
advantage ot it ?

	It includes :
	o iwstat improvement (explicit dBm). This is the result of
long discussions with Dan Williams, the authors of
NetworkManager. Thanks to him for all the fruitful feedback.
	o remove pointer from event stream. I was not totally sure if
this pointer was 32-64 bits clean, so I'd rather remove it and be at
peace with it.
	o remove linux header from wireless.h. This has long been
requested by people writting user space apps, now it's done, and it
was not even painful.
	o final deprecation of spy_offset. You did not like it, it's
now gone for good.
	o Start deprecating dev->get_wireless_stats -> debloat netdev
	o Add "check" version of event macros for ieee802.11
stack. Jiri Benc doesn't like the current macros, we aim to please ;-)
	All those changes, except the last one, have been bit-roting on
my web pages for a while...

	Patches for most kernel drivers will follow. Patches for the
Orinoco and the HostAP drivers have been sent to their respective
maintainers.

	Have fun...

	Jean
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 33 insertions, 14 deletions

diff --git a/include/linux/wireless.h b/include/linux/wireless.h
index ae485f9c916e..dab5afdaf71c 100644
--- a/include/linux/wireless.h
+++ b/include/linux/wireless.h
@@ -1,7 +1,7 @@
 /*
  * This file define a set of standard wireless extensions
  *
- * Version :    18      12.3.05
+ * Version :    19      18.3.05
  *
  * Authors :    Jean Tourrilhes - HPL - <jt@hpl.hp.com>
  * Copyright (c) 1997-2005 Jean Tourrilhes, All Rights Reserved.
@@ -69,11 +69,12 @@
 
 /***************************** INCLUDES *****************************/
 
-/* To minimise problems in user space, I might remove those headers
- * at some point. Jean II */
-#include <linux/types.h>                /* for "caddr_t" et al          */
-#include <linux/socket.h>               /* for "struct sockaddr" et al  */
-#include <linux/if.h>                   /* for IFNAMSIZ and co... */
+/* Do not put any header in this file, this creates a mess when
+ * exported to user space. Most users have included all the
+ * relevant headers anyway... Jean II */
+/*#include <linux/types.h>*/            /* for "caddr_t" et al          */
+/*#include <linux/socket.h>*/           /* for "struct sockaddr" et al  */
+/*#include <linux/if.h>*/               /* for IFNAMSIZ and co... */
 
 /***************************** VERSION *****************************/
 /*
@@ -82,7 +83,7 @@
  * (there is some stuff that will be added in the future...)
  * I just plan to increment with each new version.
  */
-#define WIRELESS_EXT    18
+#define WIRELESS_EXT    19
 
 /*
  * Changes :
@@ -197,6 +198,15 @@
  *        related parameters (extensible up to 4096 parameter values)
  *      - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
  *        IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
+ *
+ * V18 to V19
+ * ----------
+ *      - Remove (struct iw_point *)->pointer from events and streams
+ *      - Remove header includes to help user space
+ *      - Increase IW_ENCODING_TOKEN_MAX from 32 to 64
+ *      - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros
+ *      - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM
+ *      - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros
  */
 
 /**************************** CONSTANTS ****************************/
@@ -322,6 +332,7 @@
 /* The first and the last (range) */
 #define SIOCIWFIRST     0x8B00
 #define SIOCIWLAST      SIOCIWLASTPRIV          /* 0x8BFF */
+#define IW_IOCTL_IDX(cmd)       ((cmd) - SIOCIWFIRST)
 
 /* Even : get (world access), odd : set (root access) */
 #define IW_IS_SET(cmd)  (!((cmd) & 0x1))
@@ -366,6 +377,7 @@
                                          * (struct iw_pmkid_cand) */
 
 #define IWEVFIRST       0x8C00
+#define IW_EVENT_IDX(cmd)       ((cmd) - IWEVFIRST)
 
 /* ------------------------- PRIVATE INFO ------------------------- */
 /*
@@ -427,12 +439,15 @@
 #define IW_MODE_MONITOR 6       /* Passive monitor (listen only) */
 
 /* Statistics flags (bitmask in updated) */
-#define IW_QUAL_QUAL_UPDATED    0x1     /* Value was updated since last read */
-#define IW_QUAL_LEVEL_UPDATED   0x2
-#define IW_QUAL_NOISE_UPDATED   0x4
+#define IW_QUAL_QUAL_UPDATED    0x01    /* Value was updated since last read */
+#define IW_QUAL_LEVEL_UPDATED   0x02
+#define IW_QUAL_NOISE_UPDATED   0x04
+#define IW_QUAL_ALL_UPDATED     0x07
+#define IW_QUAL_DBM             0x08    /* Level + Noise are dBm */
 #define IW_QUAL_QUAL_INVALID    0x10    /* Driver doesn't provide value */
 #define IW_QUAL_LEVEL_INVALID   0x20
 #define IW_QUAL_NOISE_INVALID   0x40
+#define IW_QUAL_ALL_INVALID     0x70
 
 /* Frequency flags */
 #define IW_FREQ_AUTO            0x00    /* Let the driver decides */
@@ -443,7 +458,7 @@
 #define IW_MAX_ENCODING_SIZES   8
 
 /* Maximum size of the encoding token in bytes */
-#define IW_ENCODING_TOKEN_MAX   32      /* 256 bits (for now) */
+#define IW_ENCODING_TOKEN_MAX   64      /* 512 bits (for now) */
 
 /* Flags for encoding (along with the token) */
 #define IW_ENCODE_INDEX         0x00FF  /* Token index (if needed) */
@@ -1039,12 +1054,16 @@ struct iw_event
 #define IW_EV_CHAR_LEN  (IW_EV_LCP_LEN + IFNAMSIZ)
 #define IW_EV_UINT_LEN  (IW_EV_LCP_LEN + sizeof(__u32))
 #define IW_EV_FREQ_LEN  (IW_EV_LCP_LEN + sizeof(struct iw_freq))
-#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point))
 #define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param))
 #define IW_EV_ADDR_LEN  (IW_EV_LCP_LEN + sizeof(struct sockaddr))
 #define IW_EV_QUAL_LEN  (IW_EV_LCP_LEN + sizeof(struct iw_quality))
 
-/* Note : in the case of iw_point, the extra data will come at the
- * end of the event */
+/* iw_point events are special. First, the payload (extra data) come at
+ * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second,
+ * we omit the pointer, so start at an offset. */
+#define IW_EV_POINT_OFF (((char *) &(((struct iw_point *) NULL)->length)) - \
+                          (char *) NULL)
+#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point) - \
+                         IW_EV_POINT_OFF)
 
 #endif  /* _LINUX_WIRELESS_H */