diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/wireless.h | 47 | ||||
| -rw-r--r-- | include/net/iw_handler.h | 123 |
2 files changed, 141 insertions, 29 deletions
diff --git a/include/linux/wireless.h b/include/linux/wireless.h index ae485f9c916edb..dab5afdaf71cf6 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 */ diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h index 44edd48f123410..d67c8393a34371 100644 --- a/include/net/iw_handler.h +++ b/include/net/iw_handler.h @@ -1,10 +1,10 @@ /* * This file define the new driver API for Wireless Extensions * - * Version : 6 21.6.04 + * Version : 7 18.3.05 * * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> - * Copyright (c) 2001-2004 Jean Tourrilhes, All Rights Reserved. + * Copyright (c) 2001-2005 Jean Tourrilhes, All Rights Reserved. */ #ifndef _IW_HANDLER_H @@ -207,7 +207,7 @@ * will be needed... * I just plan to increment with each new version. */ -#define IW_HANDLER_VERSION 6 +#define IW_HANDLER_VERSION 7 /* * Changes : @@ -232,6 +232,13 @@ * - Remove spy #ifdef, they are always on -> cleaner code * - Add IW_DESCR_FLAG_NOMAX flag for very large requests * - Start migrating get_wireless_stats to struct iw_handler_def + * + * V6 to V7 + * -------- + * - Add struct ieee80211_device pointer in struct iw_public_data + * - Remove (struct iw_point *)->pointer from events and streams + * - Remove spy_offset from struct iw_handler_def + * - Add "check" version of event macros for ieee802.11 stack */ /**************************** CONSTANTS ****************************/ @@ -334,9 +341,6 @@ struct iw_handler_def * We will automatically export that to user space... */ const struct iw_priv_args * private_args; - /* This field will be *removed* in the next version of WE */ - long spy_offset; /* DO NOT USE */ - /* New location of get_wireless_stats, to de-bloat struct net_device. * The old pointer in struct net_device will be gradually phased * out, and drivers are encouraged to use this one... */ @@ -400,16 +404,21 @@ struct iw_spy_data /* --------------------- DEVICE WIRELESS DATA --------------------- */ /* * This is all the wireless data specific to a device instance that - * is managed by the core of Wireless Extensions. + * is managed by the core of Wireless Extensions or the 802.11 layer. * We only keep pointer to those structures, so that a driver is free * to share them between instances. * This structure should be initialised before registering the device. * Access to this data follow the same rules as any other struct net_device * data (i.e. valid as long as struct net_device exist, same locking rules). */ +/* Forward declaration */ +struct ieee80211_device; +/* The struct */ struct iw_public_data { /* Driver enhanced spy support */ - struct iw_spy_data * spy_data; + struct iw_spy_data * spy_data; + /* Structure managed by the in-kernel IEEE 802.11 layer */ + struct ieee80211_device * ieee80211; }; /**************************** PROTOTYPES ****************************/ @@ -424,7 +433,7 @@ struct iw_public_data { extern int dev_get_wireless_info(char * buffer, char **start, off_t offset, int length); -/* Handle IOCTLs, called in net/code/dev.c */ +/* Handle IOCTLs, called in net/core/dev.c */ extern int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd); /* Second : functions that may be called by driver modules */ @@ -479,7 +488,7 @@ iwe_stream_add_event(char * stream, /* Stream of events */ int event_len) /* Real size of payload */ { /* Check if it's possible */ - if((stream + event_len) < ends) { + if(likely((stream + event_len) < ends)) { iwe->len = event_len; memcpy(stream, (char *) iwe, event_len); stream += event_len; @@ -495,14 +504,17 @@ iwe_stream_add_event(char * stream, /* Stream of events */ static inline char * iwe_stream_add_point(char * stream, /* Stream of events */ char * ends, /* End of stream */ - struct iw_event *iwe, /* Payload */ - char * extra) + struct iw_event *iwe, /* Payload length + flags */ + char * extra) /* More payload */ { int event_len = IW_EV_POINT_LEN + iwe->u.data.length; /* Check if it's possible */ - if((stream + event_len) < ends) { + if(likely((stream + event_len) < ends)) { iwe->len = event_len; - memcpy(stream, (char *) iwe, IW_EV_POINT_LEN); + memcpy(stream, (char *) iwe, IW_EV_LCP_LEN); + memcpy(stream + IW_EV_LCP_LEN, + ((char *) iwe) + IW_EV_LCP_LEN + IW_EV_POINT_OFF, + IW_EV_POINT_LEN - IW_EV_LCP_LEN); memcpy(stream + IW_EV_POINT_LEN, extra, iwe->u.data.length); stream += event_len; } @@ -526,7 +538,7 @@ iwe_stream_add_value(char * event, /* Event in the stream */ event_len -= IW_EV_LCP_LEN; /* Check if it's possible */ - if((value + event_len) < ends) { + if(likely((value + event_len) < ends)) { /* Add new value */ memcpy(value, (char *) iwe + IW_EV_LCP_LEN, event_len); value += event_len; @@ -537,4 +549,85 @@ iwe_stream_add_value(char * event, /* Event in the stream */ return value; } +/*------------------------------------------------------------------*/ +/* + * Wrapper to add an Wireless Event to a stream of events. + * Same as above, with explicit error check... + */ +static inline char * +iwe_stream_check_add_event(char * stream, /* Stream of events */ + char * ends, /* End of stream */ + struct iw_event *iwe, /* Payload */ + int event_len, /* Size of payload */ + int * perr) /* Error report */ +{ + /* Check if it's possible, set error if not */ + if(likely((stream + event_len) < ends)) { + iwe->len = event_len; + memcpy(stream, (char *) iwe, event_len); + stream += event_len; + } else + *perr = -E2BIG; + return stream; +} + +/*------------------------------------------------------------------*/ +/* + * Wrapper to add an short Wireless Event containing a pointer to a + * stream of events. + * Same as above, with explicit error check... + */ +static inline char * +iwe_stream_check_add_point(char * stream, /* Stream of events */ + char * ends, /* End of stream */ + struct iw_event *iwe, /* Payload length + flags */ + char * extra, /* More payload */ + int * perr) /* Error report */ +{ + int event_len = IW_EV_POINT_LEN + iwe->u.data.length; + /* Check if it's possible */ + if(likely((stream + event_len) < ends)) { + iwe->len = event_len; + memcpy(stream, (char *) iwe, IW_EV_LCP_LEN); + memcpy(stream + IW_EV_LCP_LEN, + ((char *) iwe) + IW_EV_LCP_LEN + IW_EV_POINT_OFF, + IW_EV_POINT_LEN - IW_EV_LCP_LEN); + memcpy(stream + IW_EV_POINT_LEN, extra, iwe->u.data.length); + stream += event_len; + } else + *perr = -E2BIG; + return stream; +} + +/*------------------------------------------------------------------*/ +/* + * Wrapper to add a value to a Wireless Event in a stream of events. + * Be careful, this one is tricky to use properly : + * At the first run, you need to have (value = event + IW_EV_LCP_LEN). + * Same as above, with explicit error check... + */ +static inline char * +iwe_stream_check_add_value(char * event, /* Event in the stream */ + char * value, /* Value in event */ + char * ends, /* End of stream */ + struct iw_event *iwe, /* Payload */ + int event_len, /* Size of payload */ + int * perr) /* Error report */ +{ + /* Don't duplicate LCP */ + event_len -= IW_EV_LCP_LEN; + + /* Check if it's possible */ + if(likely((value + event_len) < ends)) { + /* Add new value */ + memcpy(value, (char *) iwe + IW_EV_LCP_LEN, event_len); + value += event_len; + /* Patch LCP */ + iwe->len = value - event; + memcpy(event, (char *) iwe, IW_EV_LCP_LEN); + } else + *perr = -E2BIG; + return value; +} + #endif /* _IW_HANDLER_H */ |