1/* 2 * This file define a set of standard wireless extensions 3 * 4 * Version : 14 25.1.02 5 * 6 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> 7 * Copyright (c) 1997-2002 Jean Tourrilhes, All Rights Reserved. 8 */ 9 10#ifndef _LINUX_WIRELESS_H 11#define _LINUX_WIRELESS_H 12 13/************************** DOCUMENTATION **************************/ 14/* 15 * Initial APIs (1996 -> onward) : 16 * ----------------------------- 17 * Basically, the wireless extensions are for now a set of standard ioctl 18 * call + /proc/net/wireless 19 * 20 * The entry /proc/net/wireless give statistics and information on the 21 * driver. 22 * This is better than having each driver having its entry because 23 * its centralised and we may remove the driver module safely. 24 * 25 * Ioctl are used to configure the driver and issue commands. This is 26 * better than command line options of insmod because we may want to 27 * change dynamically (while the driver is running) some parameters. 28 * 29 * The ioctl mechanimsm are copied from standard devices ioctl. 30 * We have the list of command plus a structure descibing the 31 * data exchanged... 32 * Note that to add these ioctl, I was obliged to modify : 33 * # net/core/dev.c (two place + add include) 34 * # net/ipv4/af_inet.c (one place + add include) 35 * 36 * /proc/net/wireless is a copy of /proc/net/dev. 37 * We have a structure for data passed from the driver to /proc/net/wireless 38 * Too add this, I've modified : 39 * # net/core/dev.c (two other places) 40 * # include/linux/netdevice.h (one place) 41 * # include/linux/proc_fs.h (one place) 42 * 43 * New driver API (2002 -> onward) : 44 * ------------------------------- 45 * This file is only concerned with the user space API and common definitions. 46 * The new driver API is defined and documented in : 47 * # include/net/iw_handler.h 48 * 49 * Note as well that /proc/net/wireless implementation has now moved in : 50 * # include/linux/wireless.c 51 * 52 * Wireless Events (2002 -> onward) : 53 * -------------------------------- 54 * Events are defined at the end of this file, and implemented in : 55 * # include/linux/wireless.c 56 * 57 * Other comments : 58 * -------------- 59 * Do not add here things that are redundant with other mechanisms 60 * (drivers init, ifconfig, /proc/net/dev, ...) and with are not 61 * wireless specific. 62 * 63 * These wireless extensions are not magic : each driver has to provide 64 * support for them... 65 * 66 * IMPORTANT NOTE : As everything in the kernel, this is very much a 67 * work in progress. Contact me if you have ideas of improvements... 68 */ 69 70/***************************** INCLUDES *****************************/ 71 72#include <linux/types.h> /* for "caddr_t" et al */ 73#include <linux/socket.h> /* for "struct sockaddr" et al */ 74#include <linux/if.h> /* for IFNAMSIZ and co... */ 75 76/***************************** VERSION *****************************/ 77/* 78 * This constant is used to know the availability of the wireless 79 * extensions and to know which version of wireless extensions it is 80 * (there is some stuff that will be added in the future...) 81 * I just plan to increment with each new version. 82 */ 83#define WIRELESS_EXT 14 84 85/* 86 * Changes : 87 * 88 * V2 to V3 89 * -------- 90 * Alan Cox start some incompatibles changes. I've integrated a bit more. 91 * - Encryption renamed to Encode to avoid US regulation problems 92 * - Frequency changed from float to struct to avoid problems on old 386 93 * 94 * V3 to V4 95 * -------- 96 * - Add sensitivity 97 * 98 * V4 to V5 99 * -------- 100 * - Missing encoding definitions in range 101 * - Access points stuff 102 * 103 * V5 to V6 104 * -------- 105 * - 802.11 support (ESSID ioctls) 106 * 107 * V6 to V7 108 * -------- 109 * - define IW_ESSID_MAX_SIZE and IW_MAX_AP 110 * 111 * V7 to V8 112 * -------- 113 * - Changed my e-mail address 114 * - More 802.11 support (nickname, rate, rts, frag) 115 * - List index in frequencies 116 * 117 * V8 to V9 118 * -------- 119 * - Support for 'mode of operation' (ad-hoc, managed...) 120 * - Support for unicast and multicast power saving 121 * - Change encoding to support larger tokens (>64 bits) 122 * - Updated iw_params (disable, flags) and use it for NWID 123 * - Extracted iw_point from iwreq for clarity 124 * 125 * V9 to V10 126 * --------- 127 * - Add PM capability to range structure 128 * - Add PM modifier : MAX/MIN/RELATIVE 129 * - Add encoding option : IW_ENCODE_NOKEY 130 * - Add TxPower ioctls (work like TxRate) 131 * 132 * V10 to V11 133 * ---------- 134 * - Add WE version in range (help backward/forward compatibility) 135 * - Add retry ioctls (work like PM) 136 * 137 * V11 to V12 138 * ---------- 139 * - Add SIOCSIWSTATS to get /proc/net/wireless programatically 140 * - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space 141 * - Add new statistics (frag, retry, beacon) 142 * - Add average quality (for user space calibration) 143 * 144 * V12 to V13 145 * ---------- 146 * - Document creation of new driver API. 147 * - Extract union iwreq_data from struct iwreq (for new driver API). 148 * - Rename SIOCSIWNAME as SIOCSIWCOMMIT 149 * 150 * V13 to V14 151 * ---------- 152 * - Wireless Events support : define struct iw_event 153 * - Define additional specific event numbers 154 * - Add "addr" and "param" fields in union iwreq_data 155 * - AP scanning stuff (SIOCSIWSCAN and friends) 156 */ 157 158/**************************** CONSTANTS ****************************/ 159 160/* -------------------------- IOCTL LIST -------------------------- */ 161 162/* Basic operations */ 163#define SIOCSIWCOMMIT 0x8B00 /* Commit pending changes to driver */ 164#define SIOCGIWNAME 0x8B01 /* get name == wireless protocol */ 165#define SIOCSIWNWID 0x8B02 /* set network id (the cell) */ 166#define SIOCGIWNWID 0x8B03 /* get network id */ 167#define SIOCSIWFREQ 0x8B04 /* set channel/frequency (Hz) */ 168#define SIOCGIWFREQ 0x8B05 /* get channel/frequency (Hz) */ 169#define SIOCSIWMODE 0x8B06 /* set operation mode */ 170#define SIOCGIWMODE 0x8B07 /* get operation mode */ 171#define SIOCSIWSENS 0x8B08 /* set sensitivity (dBm) */ 172#define SIOCGIWSENS 0x8B09 /* get sensitivity (dBm) */ 173 174/* Informative stuff */ 175#define SIOCSIWRANGE 0x8B0A /* Unused */ 176#define SIOCGIWRANGE 0x8B0B /* Get range of parameters */ 177#define SIOCSIWPRIV 0x8B0C /* Unused */ 178#define SIOCGIWPRIV 0x8B0D /* get private ioctl interface info */ 179#define SIOCSIWSTATS 0x8B0E /* Unused */ 180#define SIOCGIWSTATS 0x8B0F /* Get /proc/net/wireless stats */ 181 182/* Mobile IP support */ 183#define SIOCSIWSPY 0x8B10 /* set spy addresses */ 184#define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */ 185 186/* Access Point manipulation */ 187#define SIOCSIWAP 0x8B14 /* set access point MAC addresses */ 188#define SIOCGIWAP 0x8B15 /* get access point MAC addresses */ 189#define SIOCGIWAPLIST 0x8B17 /* get list of access point in range */ 190#define SIOCSIWSCAN 0x8B18 /* trigger scanning */ 191#define SIOCGIWSCAN 0x8B19 /* get scanning results */ 192 193/* 802.11 specific support */ 194#define SIOCSIWESSID 0x8B1A /* set ESSID (network name) */ 195#define SIOCGIWESSID 0x8B1B /* get ESSID */ 196#define SIOCSIWNICKN 0x8B1C /* set node name/nickname */ 197#define SIOCGIWNICKN 0x8B1D /* get node name/nickname */ 198/* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit 199 * within the 'iwreq' structure, so we need to use the 'data' member to 200 * point to a string in user space, like it is done for RANGE... 201 * The "flags" member indicate if the ESSID is active or not (promiscuous). 202 */ 203 204/* Other parameters useful in 802.11 and some other devices */ 205#define SIOCSIWRATE 0x8B20 /* set default bit rate (bps) */ 206#define SIOCGIWRATE 0x8B21 /* get default bit rate (bps) */ 207#define SIOCSIWRTS 0x8B22 /* set RTS/CTS threshold (bytes) */ 208#define SIOCGIWRTS 0x8B23 /* get RTS/CTS threshold (bytes) */ 209#define SIOCSIWFRAG 0x8B24 /* set fragmentation thr (bytes) */ 210#define SIOCGIWFRAG 0x8B25 /* get fragmentation thr (bytes) */ 211#define SIOCSIWTXPOW 0x8B26 /* set transmit power (dBm) */ 212#define SIOCGIWTXPOW 0x8B27 /* get transmit power (dBm) */ 213#define SIOCSIWRETRY 0x8B28 /* set retry limits and lifetime */ 214#define SIOCGIWRETRY 0x8B29 /* get retry limits and lifetime */ 215 216/* Encoding stuff (scrambling, hardware security, WEP...) */ 217#define SIOCSIWENCODE 0x8B2A /* set encoding token & mode */ 218#define SIOCGIWENCODE 0x8B2B /* get encoding token & mode */ 219/* Power saving stuff (power management, unicast and multicast) */ 220#define SIOCSIWPOWER 0x8B2C /* set Power Management settings */ 221#define SIOCGIWPOWER 0x8B2D /* get Power Management settings */ 222 223/* -------------------- DEV PRIVATE IOCTL LIST -------------------- */ 224 225/* These 16 ioctl are wireless device private. 226 * Each driver is free to use them for whatever purpose it chooses, 227 * however the driver *must* export the description of those ioctls 228 * with SIOCGIWPRIV and *must* use arguments as defined below. 229 * If you don't follow those rules, DaveM is going to hate you (reason : 230 * it make mixed 32/64bit operation impossible). 231 */ 232#define SIOCIWFIRSTPRIV 0x8BE0 233#define SIOCIWLASTPRIV 0x8BFF 234/* Previously, we were using SIOCDEVPRIVATE, but we now have our 235 * separate range because of collisions with other tools such as 236 * 'mii-tool'. 237 * We now have 32 commands, so a bit more space ;-). 238 * Also, all 'odd' commands are only usable by root and don't return the 239 * content of ifr/iwr to user (but you are not obliged to use the set/get 240 * convention, just use every other two command). 241 * And I repeat : you are not obliged to use them with iwspy, but you 242 * must be compliant with it. 243 */ 244 245/* ------------------------- IOCTL STUFF ------------------------- */ 246 247/* The first and the last (range) */ 248#define SIOCIWFIRST 0x8B00 249#define SIOCIWLAST SIOCIWLASTPRIV /* 0x8BFF */ 250 251/* Even : get (world access), odd : set (root access) */ 252#define IW_IS_SET(cmd) (!((cmd) & 0x1)) 253#define IW_IS_GET(cmd) ((cmd) & 0x1) 254 255/* ----------------------- WIRELESS EVENTS ----------------------- */ 256/* Those are *NOT* ioctls, do not issue request on them !!! */ 257/* Most events use the same identifier as ioctl requests */ 258 259#define IWEVTXDROP 0x8C00 /* Packet dropped to excessive retry */ 260#define IWEVQUAL 0x8C01 /* Quality part of statistics */ 261 262#define IWEVFIRST 0x8C00 263 264/* ------------------------- PRIVATE INFO ------------------------- */ 265/* 266 * The following is used with SIOCGIWPRIV. It allow a driver to define 267 * the interface (name, type of data) for its private ioctl. 268 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV 269 */ 270 271#define IW_PRIV_TYPE_MASK 0x7000 /* Type of arguments */ 272#define IW_PRIV_TYPE_NONE 0x0000 273#define IW_PRIV_TYPE_BYTE 0x1000 /* Char as number */ 274#define IW_PRIV_TYPE_CHAR 0x2000 /* Char as character */ 275#define IW_PRIV_TYPE_INT 0x4000 /* 32 bits int */ 276#define IW_PRIV_TYPE_FLOAT 0x5000 277 278#define IW_PRIV_SIZE_FIXED 0x0800 /* Variable or fixed nuber of args */ 279 280#define IW_PRIV_SIZE_MASK 0x07FF /* Max number of those args */ 281 282/* 283 * Note : if the number of args is fixed and the size < 16 octets, 284 * instead of passing a pointer we will put args in the iwreq struct... 285 */ 286 287/* ----------------------- OTHER CONSTANTS ----------------------- */ 288 289/* Maximum frequencies in the range struct */ 290#define IW_MAX_FREQUENCIES 16 291/* Note : if you have something like 80 frequencies, 292 * don't increase this constant and don't fill the frequency list. 293 * The user will be able to set by channel anyway... */ 294 295/* Maximum bit rates in the range struct */ 296#define IW_MAX_BITRATES 8 297 298/* Maximum tx powers in the range struct */ 299#define IW_MAX_TXPOWER 8 300 301/* Maximum of address that you may set with SPY */ 302#define IW_MAX_SPY 8 303 304/* Maximum of address that you may get in the 305 list of access points in range */ 306#define IW_MAX_AP 8 307 308/* Maximum size of the ESSID and NICKN strings */ 309#define IW_ESSID_MAX_SIZE 32 310 311/* Modes of operation */ 312#define IW_MODE_AUTO 0 /* Let the driver decides */ 313#define IW_MODE_ADHOC 1 /* Single cell network */ 314#define IW_MODE_INFRA 2 /* Multi cell network, roaming, ... */ 315#define IW_MODE_MASTER 3 /* Synchronisation master or Access Point */ 316#define IW_MODE_REPEAT 4 /* Wireless Repeater (forwarder) */ 317#define IW_MODE_SECOND 5 /* Secondary master/repeater (backup) */ 318 319/* Maximum number of size of encoding token available 320 * they are listed in the range structure */ 321#define IW_MAX_ENCODING_SIZES 8 322 323/* Maximum size of the encoding token in bytes */ 324#define IW_ENCODING_TOKEN_MAX 32 /* 256 bits (for now) */ 325 326/* Flags for encoding (along with the token) */ 327#define IW_ENCODE_INDEX 0x00FF /* Token index (if needed) */ 328#define IW_ENCODE_FLAGS 0xFF00 /* Flags defined below */ 329#define IW_ENCODE_MODE 0xF000 /* Modes defined below */ 330#define IW_ENCODE_DISABLED 0x8000 /* Encoding disabled */ 331#define IW_ENCODE_ENABLED 0x0000 /* Encoding enabled */ 332#define IW_ENCODE_RESTRICTED 0x4000 /* Refuse non-encoded packets */ 333#define IW_ENCODE_OPEN 0x2000 /* Accept non-encoded packets */ 334#define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */ 335 336/* Power management flags available (along with the value, if any) */ 337#define IW_POWER_ON 0x0000 /* No details... */ 338#define IW_POWER_TYPE 0xF000 /* Type of parameter */ 339#define IW_POWER_PERIOD 0x1000 /* Value is a period/duration of */ 340#define IW_POWER_TIMEOUT 0x2000 /* Value is a timeout (to go asleep) */ 341#define IW_POWER_MODE 0x0F00 /* Power Management mode */ 342#define IW_POWER_UNICAST_R 0x0100 /* Receive only unicast messages */ 343#define IW_POWER_MULTICAST_R 0x0200 /* Receive only multicast messages */ 344#define IW_POWER_ALL_R 0x0300 /* Receive all messages though PM */ 345#define IW_POWER_FORCE_S 0x0400 /* Force PM procedure for sending unicast */ 346#define IW_POWER_REPEATER 0x0800 /* Repeat broadcast messages in PM period */ 347#define IW_POWER_MODIFIER 0x000F /* Modify a parameter */ 348#define IW_POWER_MIN 0x0001 /* Value is a minimum */ 349#define IW_POWER_MAX 0x0002 /* Value is a maximum */ 350#define IW_POWER_RELATIVE 0x0004 /* Value is not in seconds/ms/us */ 351 352/* Transmit Power flags available */ 353#define IW_TXPOW_DBM 0x0000 /* Value is in dBm */ 354#define IW_TXPOW_MWATT 0x0001 /* Value is in mW */ 355 356/* Retry limits and lifetime flags available */ 357#define IW_RETRY_ON 0x0000 /* No details... */ 358#define IW_RETRY_TYPE 0xF000 /* Type of parameter */ 359#define IW_RETRY_LIMIT 0x1000 /* Maximum number of retries*/ 360#define IW_RETRY_LIFETIME 0x2000 /* Maximum duration of retries in us */ 361#define IW_RETRY_MODIFIER 0x000F /* Modify a parameter */ 362#define IW_RETRY_MIN 0x0001 /* Value is a minimum */ 363#define IW_RETRY_MAX 0x0002 /* Value is a maximum */ 364#define IW_RETRY_RELATIVE 0x0004 /* Value is not in seconds/ms/us */ 365 366/* Scanning request flags */ 367#define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */ 368#define IW_SCAN_ALL_ESSID 0x0001 /* Scan all ESSIDs */ 369#define IW_SCAN_THIS_ESSID 0x0002 /* Scan only this ESSID */ 370#define IW_SCAN_ALL_FREQ 0x0004 /* Scan all Frequencies */ 371#define IW_SCAN_THIS_FREQ 0x0008 /* Scan only this Frequency */ 372#define IW_SCAN_ALL_MODE 0x0010 /* Scan all Modes */ 373#define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */ 374#define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */ 375#define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */ 376/* Maximum size of returned data */ 377#define IW_SCAN_MAX_DATA 4096 /* In bytes */ 378 379/****************************** TYPES ******************************/ 380 381/* --------------------------- SUBTYPES --------------------------- */ 382/* 383 * Generic format for most parameters that fit in an int 384 */ 385struct iw_param 386{ 387 __s32 value; /* The value of the parameter itself */ 388 __u8 fixed; /* Hardware should not use auto select */ 389 __u8 disabled; /* Disable the feature */ 390 __u16 flags; /* Various specifc flags (if any) */ 391}; 392 393/* 394 * For all data larger than 16 octets, we need to use a 395 * pointer to memory allocated in user space. 396 */ 397struct iw_point 398{ 399 caddr_t pointer; /* Pointer to the data (in user space) */ 400 __u16 length; /* number of fields or size in bytes */ 401 __u16 flags; /* Optional params */ 402}; 403 404/* 405 * A frequency 406 * For numbers lower than 10^9, we encode the number in 'm' and 407 * set 'e' to 0 408 * For number greater than 10^9, we divide it by the lowest power 409 * of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')... 410 * The power of 10 is in 'e', the result of the division is in 'm'. 411 */ 412struct iw_freq 413{ 414 __u32 m; /* Mantissa */ 415 __u16 e; /* Exponent */ 416 __u8 i; /* List index (when in range struct) */ 417}; 418 419/* 420 * Quality of the link 421 */ 422struct iw_quality 423{ 424 __u8 qual; /* link quality (%retries, SNR, 425 %missed beacons or better...) */ 426 __u8 level; /* signal level (dBm) */ 427 __u8 noise; /* noise level (dBm) */ 428 __u8 updated; /* Flags to know if updated */ 429}; 430 431/* 432 * Packet discarded in the wireless adapter due to 433 * "wireless" specific problems... 434 * Note : the list of counter and statistics in net_device_stats 435 * is already pretty exhaustive, and you should use that first. 436 * This is only additional stats... 437 */ 438struct iw_discarded 439{ 440 __u32 nwid; /* Rx : Wrong nwid/essid */ 441 __u32 code; /* Rx : Unable to code/decode (WEP) */ 442 __u32 fragment; /* Rx : Can't perform MAC reassembly */ 443 __u32 retries; /* Tx : Max MAC retries num reached */ 444 __u32 misc; /* Others cases */ 445}; 446 447/* 448 * Packet/Time period missed in the wireless adapter due to 449 * "wireless" specific problems... 450 */ 451struct iw_missed 452{ 453 __u32 beacon; /* Missed beacons/superframe */ 454}; 455 456/* ------------------------ WIRELESS STATS ------------------------ */ 457/* 458 * Wireless statistics (used for /proc/net/wireless) 459 */ 460struct iw_statistics 461{ 462 __u16 status; /* Status 463 * - device dependent for now */ 464 465 struct iw_quality qual; /* Quality of the link 466 * (instant/mean/max) */ 467 struct iw_discarded discard; /* Packet discarded counts */ 468 struct iw_missed miss; /* Packet missed counts */ 469}; 470 471/* ------------------------ IOCTL REQUEST ------------------------ */ 472/* 473 * This structure defines the payload of an ioctl, and is used 474 * below. 475 * 476 * Note that this structure should fit on the memory footprint 477 * of iwreq (which is the same as ifreq), which mean a max size of 478 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide... 479 * You should check this when increasing the structures defined 480 * above in this file... 481 */ 482union iwreq_data 483{ 484 /* Config - generic */ 485 char name[IFNAMSIZ]; 486 /* Name : used to verify the presence of wireless extensions. 487 * Name of the protocol/provider... */ 488 489 struct iw_point essid; /* Extended network name */ 490 struct iw_param nwid; /* network id (or domain - the cell) */ 491 struct iw_freq freq; /* frequency or channel : 492 * 0-1000 = channel 493 * > 1000 = frequency in Hz */ 494 495 struct iw_param sens; /* signal level threshold */ 496 struct iw_param bitrate; /* default bit rate */ 497 struct iw_param txpower; /* default transmit power */ 498 struct iw_param rts; /* RTS threshold threshold */ 499 struct iw_param frag; /* Fragmentation threshold */ 500 __u32 mode; /* Operation mode */ 501 struct iw_param retry; /* Retry limits & lifetime */ 502 503 struct iw_point encoding; /* Encoding stuff : tokens */ 504 struct iw_param power; /* PM duration/timeout */ 505 struct iw_quality qual; /* Quality part of statistics */ 506 507 struct sockaddr ap_addr; /* Access point address */ 508 struct sockaddr addr; /* Destination address (hw) */ 509 510 struct iw_param param; /* Other small parameters */ 511 struct iw_point data; /* Other large parameters */ 512}; 513 514/* 515 * The structure to exchange data for ioctl. 516 * This structure is the same as 'struct ifreq', but (re)defined for 517 * convenience... 518 * Do I need to remind you about structure size (32 octets) ? 519 */ 520struct iwreq 521{ 522 union 523 { 524 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "eth0" */ 525 } ifr_ifrn; 526 527 /* Data part (defined just above) */ 528 union iwreq_data u; 529}; 530 531/* -------------------------- IOCTL DATA -------------------------- */ 532/* 533 * For those ioctl which want to exchange mode data that what could 534 * fit in the above structure... 535 */ 536 537/* 538 * Range of parameters 539 */ 540 541struct iw_range 542{ 543 /* Informative stuff (to choose between different interface) */ 544 __u32 throughput; /* To give an idea... */ 545 /* In theory this value should be the maximum benchmarked 546 * TCP/IP throughput, because with most of these devices the 547 * bit rate is meaningless (overhead an co) to estimate how 548 * fast the connection will go and pick the fastest one. 549 * I suggest people to play with Netperf or any benchmark... 550 */ 551 552 /* NWID (or domain id) */ 553 __u32 min_nwid; /* Minimal NWID we are able to set */ 554 __u32 max_nwid; /* Maximal NWID we are able to set */ 555 556 /* Frequency */ 557 __u16 num_channels; /* Number of channels [0; num - 1] */ 558 __u8 num_frequency; /* Number of entry in the list */ 559 struct iw_freq freq[IW_MAX_FREQUENCIES]; /* list */ 560 /* Note : this frequency list doesn't need to fit channel numbers */ 561 562 /* signal level threshold range */ 563 __s32 sensitivity; 564 565 /* Quality of link & SNR stuff */ 566 struct iw_quality max_qual; /* Quality of the link */ 567 568 /* Rates */ 569 __u8 num_bitrates; /* Number of entries in the list */ 570 __s32 bitrate[IW_MAX_BITRATES]; /* list, in bps */ 571 572 /* RTS threshold */ 573 __s32 min_rts; /* Minimal RTS threshold */ 574 __s32 max_rts; /* Maximal RTS threshold */ 575 576 /* Frag threshold */ 577 __s32 min_frag; /* Minimal frag threshold */ 578 __s32 max_frag; /* Maximal frag threshold */ 579 580 /* Power Management duration & timeout */ 581 __s32 min_pmp; /* Minimal PM period */ 582 __s32 max_pmp; /* Maximal PM period */ 583 __s32 min_pmt; /* Minimal PM timeout */ 584 __s32 max_pmt; /* Maximal PM timeout */ 585 __u16 pmp_flags; /* How to decode max/min PM period */ 586 __u16 pmt_flags; /* How to decode max/min PM timeout */ 587 __u16 pm_capa; /* What PM options are supported */ 588 589 /* Encoder stuff */ 590 __u16 encoding_size[IW_MAX_ENCODING_SIZES]; /* Different token sizes */ 591 __u8 num_encoding_sizes; /* Number of entry in the list */ 592 __u8 max_encoding_tokens; /* Max number of tokens */ 593 594 /* Transmit power */ 595 __u16 txpower_capa; /* What options are supported */ 596 __u8 num_txpower; /* Number of entries in the list */ 597 __s32 txpower[IW_MAX_TXPOWER]; /* list, in bps */ 598 599 /* Wireless Extension version info */ 600 __u8 we_version_compiled; /* Must be WIRELESS_EXT */ 601 __u8 we_version_source; /* Last update of source */ 602 603 /* Retry limits and lifetime */ 604 __u16 retry_capa; /* What retry options are supported */ 605 __u16 retry_flags; /* How to decode max/min retry limit */ 606 __u16 r_time_flags; /* How to decode max/min retry life */ 607 __s32 min_retry; /* Minimal number of retries */ 608 __s32 max_retry; /* Maximal number of retries */ 609 __s32 min_r_time; /* Minimal retry lifetime */ 610 __s32 max_r_time; /* Maximal retry lifetime */ 611 612 /* Average quality of link & SNR */ 613 struct iw_quality avg_qual; /* Quality of the link */ 614 /* This should contain the average/typical values of the quality 615 * indicator. This should be the threshold between a "good" and 616 * a "bad" link (example : monitor going from green to orange). 617 * Currently, user space apps like quality monitors don't have any 618 * way to calibrate the measurement. With this, they can split 619 * the range between 0 and max_qual in different quality level 620 * (using a geometric subdivision centered on the average). 621 * I expect that people doing the user space apps will feedback 622 * us on which value we need to put in each driver... 623 */ 624}; 625 626/* 627 * Private ioctl interface information 628 */ 629 630struct iw_priv_args 631{ 632 __u32 cmd; /* Number of the ioctl to issue */ 633 __u16 set_args; /* Type and number of args */ 634 __u16 get_args; /* Type and number of args */ 635 char name[IFNAMSIZ]; /* Name of the extension */ 636}; 637 638/* ----------------------- WIRELESS EVENTS ----------------------- */ 639/* 640 * Wireless events are carried through the rtnetlink socket to user 641 * space. They are encapsulated in the IFLA_WIRELESS field of 642 * a RTM_NEWLINK message. 643 */ 644 645/* 646 * A Wireless Event. Contains basically the same data as the ioctl... 647 */ 648struct iw_event 649{ 650 __u16 len; /* Real lenght of this stuff */ 651 __u16 cmd; /* Wireless IOCTL */ 652 union iwreq_data u; /* IOCTL fixed payload */ 653}; 654 655/* Size of the Event prefix (including padding and alignement junk) */ 656#define IW_EV_LCP_LEN (sizeof(struct iw_event) - sizeof(union iwreq_data)) 657/* Size of the various events */ 658#define IW_EV_CHAR_LEN (IW_EV_LCP_LEN + IFNAMSIZ) 659#define IW_EV_UINT_LEN (IW_EV_LCP_LEN + sizeof(__u32)) 660#define IW_EV_FREQ_LEN (IW_EV_LCP_LEN + sizeof(struct iw_freq)) 661#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point)) 662#define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param)) 663#define IW_EV_ADDR_LEN (IW_EV_LCP_LEN + sizeof(struct sockaddr)) 664#define IW_EV_QUAL_LEN (IW_EV_LCP_LEN + sizeof(struct iw_quality)) 665 666/* Note : in the case of iw_point, the extra data will come at the 667 * end of the event */ 668 669#endif /* _LINUX_WIRELESS_H */ 670