992 lines · c
1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_114 * remains copyright by the original authors5 *6 * Portions of the merged code are based on Host AP (software wireless7 * LAN access point) driver for Intersil Prism2/2.5/3.8 *9 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen10 * <j@w1.fi>11 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>12 *13 * Adaption to a generic IEEE 802.11 stack by James Ketrenos14 * <jketreno@linux.intel.com>15 * Copyright (c) 2004-2005, Intel Corporation16 *17 * API Version History18 * 1.0.x -- Initial version19 * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs,20 * various structure changes, and crypto API init method21 */22#ifndef LIBIPW_H23#define LIBIPW_H24#include <linux/if_ether.h> /* ETH_ALEN */25#include <linux/kernel.h> /* ARRAY_SIZE */26#include <linux/wireless.h>27#include <linux/ieee80211.h>28 29#include <net/lib80211.h>30#include <net/cfg80211.h>31 32#define LIBIPW_VERSION "git-1.1.13"33 34#define LIBIPW_DATA_LEN 230435/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section36 6.2.1.1.2.37 38 The figure in section 7.1.2 suggests a body size of up to 231239 bytes is allowed, which is a bit confusing, I suspect this40 represents the 2304 bytes of real data, plus a possible 8 bytes of41 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */42 43#define LIBIPW_1ADDR_LEN 1044#define LIBIPW_2ADDR_LEN 1645#define LIBIPW_3ADDR_LEN 2446#define LIBIPW_4ADDR_LEN 3047#define LIBIPW_FCS_LEN 448#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)49#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)50 51#define MIN_FRAG_THRESHOLD 256U52#define MAX_FRAG_THRESHOLD 2346U53 54/* QOS control */55#define LIBIPW_QCTL_TID 0x000F56 57/* debug macros */58 59#ifdef CONFIG_LIBIPW_DEBUG60extern u32 libipw_debug_level;61#define LIBIPW_DEBUG(level, fmt, args...) \62do { if (libipw_debug_level & (level)) \63 printk(KERN_DEBUG "libipw: %s " fmt, __func__ , ## args); } while (0)64#else65#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0)66#endif /* CONFIG_LIBIPW_DEBUG */67 68/*69 * To use the debug system:70 *71 * If you are defining a new debug classification, simply add it to the #define72 * list here in the form of:73 *74 * #define LIBIPW_DL_xxxx VALUE75 *76 * shifting value to the left one bit from the previous entry. xxxx should be77 * the name of the classification (for example, WEP)78 *79 * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your80 * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want81 * to send output to that classification.82 *83 * To add your debug level to the list of levels seen when you perform84 *85 * % cat /proc/net/ieee80211/debug_level86 *87 * you simply need to add your entry to the libipw_debug_level array.88 *89 * If you do not see debug_level in /proc/net/ieee80211 then you do not have90 * CONFIG_LIBIPW_DEBUG defined in your kernel configuration91 *92 */93 94#define LIBIPW_DL_INFO (1<<0)95#define LIBIPW_DL_WX (1<<1)96#define LIBIPW_DL_SCAN (1<<2)97#define LIBIPW_DL_STATE (1<<3)98#define LIBIPW_DL_MGMT (1<<4)99#define LIBIPW_DL_FRAG (1<<5)100#define LIBIPW_DL_DROP (1<<7)101 102#define LIBIPW_DL_TX (1<<8)103#define LIBIPW_DL_RX (1<<9)104#define LIBIPW_DL_QOS (1<<31)105 106#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)107#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)108#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)109 110#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)111#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)112#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)113#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)114#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)115#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)116#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)117#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)118#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)119#include <linux/netdevice.h>120#include <linux/if_arp.h> /* ARPHRD_ETHER */121 122#ifndef WIRELESS_SPY123#define WIRELESS_SPY /* enable iwspy support */124#endif125#include <net/iw_handler.h> /* new driver API */126 127#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */128 129#ifndef ETH_P_80211_RAW130#define ETH_P_80211_RAW (ETH_P_ECONET + 1)131#endif132 133/* IEEE 802.11 defines */134 135#define P80211_OUI_LEN 3136 137struct libipw_snap_hdr {138 139 u8 dsap; /* always 0xAA */140 u8 ssap; /* always 0xAA */141 u8 ctrl; /* always 0x03 */142 u8 oui[P80211_OUI_LEN]; /* organizational universal id */143 144} __packed;145 146#define SNAP_SIZE sizeof(struct libipw_snap_hdr)147 148#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)149#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)150#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)151 152#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)153#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)154 155#define LIBIPW_STATMASK_SIGNAL (1<<0)156#define LIBIPW_STATMASK_RSSI (1<<1)157#define LIBIPW_STATMASK_NOISE (1<<2)158#define LIBIPW_STATMASK_RATE (1<<3)159#define LIBIPW_STATMASK_WEMASK 0x7160 161#define LIBIPW_CCK_MODULATION (1<<0)162#define LIBIPW_OFDM_MODULATION (1<<1)163 164#define LIBIPW_24GHZ_BAND (1<<0)165#define LIBIPW_52GHZ_BAND (1<<1)166 167#define LIBIPW_CCK_RATE_1MB 0x02168#define LIBIPW_CCK_RATE_2MB 0x04169#define LIBIPW_CCK_RATE_5MB 0x0B170#define LIBIPW_CCK_RATE_11MB 0x16171#define LIBIPW_OFDM_RATE_6MB 0x0C172#define LIBIPW_OFDM_RATE_9MB 0x12173#define LIBIPW_OFDM_RATE_12MB 0x18174#define LIBIPW_OFDM_RATE_18MB 0x24175#define LIBIPW_OFDM_RATE_24MB 0x30176#define LIBIPW_OFDM_RATE_36MB 0x48177#define LIBIPW_OFDM_RATE_48MB 0x60178#define LIBIPW_OFDM_RATE_54MB 0x6C179#define LIBIPW_BASIC_RATE_MASK 0x80180 181#define LIBIPW_CCK_RATE_1MB_MASK (1<<0)182#define LIBIPW_CCK_RATE_2MB_MASK (1<<1)183#define LIBIPW_CCK_RATE_5MB_MASK (1<<2)184#define LIBIPW_CCK_RATE_11MB_MASK (1<<3)185#define LIBIPW_OFDM_RATE_6MB_MASK (1<<4)186#define LIBIPW_OFDM_RATE_9MB_MASK (1<<5)187#define LIBIPW_OFDM_RATE_12MB_MASK (1<<6)188#define LIBIPW_OFDM_RATE_18MB_MASK (1<<7)189#define LIBIPW_OFDM_RATE_24MB_MASK (1<<8)190#define LIBIPW_OFDM_RATE_36MB_MASK (1<<9)191#define LIBIPW_OFDM_RATE_48MB_MASK (1<<10)192#define LIBIPW_OFDM_RATE_54MB_MASK (1<<11)193 194#define LIBIPW_CCK_RATES_MASK 0x0000000F195#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \196 LIBIPW_CCK_RATE_2MB_MASK)197#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \198 LIBIPW_CCK_RATE_5MB_MASK | \199 LIBIPW_CCK_RATE_11MB_MASK)200 201#define LIBIPW_OFDM_RATES_MASK 0x00000FF0202#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \203 LIBIPW_OFDM_RATE_12MB_MASK | \204 LIBIPW_OFDM_RATE_24MB_MASK)205#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \206 LIBIPW_OFDM_RATE_9MB_MASK | \207 LIBIPW_OFDM_RATE_18MB_MASK | \208 LIBIPW_OFDM_RATE_36MB_MASK | \209 LIBIPW_OFDM_RATE_48MB_MASK | \210 LIBIPW_OFDM_RATE_54MB_MASK)211#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \212 LIBIPW_CCK_DEFAULT_RATES_MASK)213 214#define LIBIPW_NUM_OFDM_RATES 8215#define LIBIPW_NUM_CCK_RATES 4216#define LIBIPW_OFDM_SHIFT_MASK_A 4217 218/* NOTE: This data is for statistical purposes; not all hardware provides this219 * information for frames received.220 * For libipw_rx_mgt, you need to set at least the 'len' parameter.221 */222struct libipw_rx_stats {223 u32 mac_time;224 s8 rssi;225 u8 signal;226 u8 noise;227 u16 rate; /* in 100 kbps */228 u8 received_channel;229 u8 control;230 u8 mask;231 u8 freq;232 u16 len;233 u64 tsf;234 u32 beacon_time;235};236 237/* IEEE 802.11 requires that STA supports concurrent reception of at least238 * three fragmented frames. This define can be increased to support more239 * concurrent frames, but it should be noted that each entry can consume about240 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */241#define LIBIPW_FRAG_CACHE_LEN 4242 243struct libipw_frag_entry {244 unsigned long first_frag_time;245 unsigned int seq;246 unsigned int last_frag;247 struct sk_buff *skb;248 u8 src_addr[ETH_ALEN];249 u8 dst_addr[ETH_ALEN];250};251 252struct libipw_stats {253 unsigned int tx_unicast_frames;254 unsigned int tx_multicast_frames;255 unsigned int tx_fragments;256 unsigned int tx_unicast_octets;257 unsigned int tx_multicast_octets;258 unsigned int tx_deferred_transmissions;259 unsigned int tx_single_retry_frames;260 unsigned int tx_multiple_retry_frames;261 unsigned int tx_retry_limit_exceeded;262 unsigned int tx_discards;263 unsigned int rx_unicast_frames;264 unsigned int rx_multicast_frames;265 unsigned int rx_fragments;266 unsigned int rx_unicast_octets;267 unsigned int rx_multicast_octets;268 unsigned int rx_fcs_errors;269 unsigned int rx_discards_no_buffer;270 unsigned int tx_discards_wrong_sa;271 unsigned int rx_discards_undecryptable;272 unsigned int rx_message_in_msg_fragments;273 unsigned int rx_message_in_bad_msg_fragments;274};275 276struct libipw_device;277 278#define SEC_KEY_1 (1<<0)279#define SEC_KEY_2 (1<<1)280#define SEC_KEY_3 (1<<2)281#define SEC_KEY_4 (1<<3)282#define SEC_ACTIVE_KEY (1<<4)283#define SEC_AUTH_MODE (1<<5)284#define SEC_UNICAST_GROUP (1<<6)285#define SEC_LEVEL (1<<7)286#define SEC_ENABLED (1<<8)287#define SEC_ENCRYPT (1<<9)288 289#define SEC_LEVEL_0 0 /* None */290#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */291#define SEC_LEVEL_2 2 /* Level 1 + TKIP */292#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */293#define SEC_LEVEL_3 4 /* Level 2 + CCMP */294 295#define SEC_ALG_NONE 0296#define SEC_ALG_WEP 1297#define SEC_ALG_TKIP 2298#define SEC_ALG_CCMP 3299 300#define WEP_KEYS 4301#define WEP_KEY_LEN 13302#define SCM_KEY_LEN 32303#define SCM_TEMPORAL_KEY_LENGTH 16304 305struct libipw_security {306 u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1;307 u8 auth_mode;308 u8 encode_alg[WEP_KEYS];309 u8 key_sizes[WEP_KEYS];310 u8 keys[WEP_KEYS][SCM_KEY_LEN];311 u8 level;312 u16 flags;313} __packed;314 315/*316 317 802.11 data frame from AP318 319 ,-------------------------------------------------------------------.320Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |321 |------|------|---------|---------|---------|------|---------|------|322Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |323 | | tion | (BSSID) | | | ence | data | |324 `-------------------------------------------------------------------'325 326Total: 28-2340 bytes327 328*/329 330#define BEACON_PROBE_SSID_ID_POSITION 12331 332struct libipw_hdr_1addr {333 __le16 frame_ctl;334 __le16 duration_id;335 u8 addr1[ETH_ALEN];336 u8 payload[];337} __packed;338 339struct libipw_hdr_2addr {340 __le16 frame_ctl;341 __le16 duration_id;342 u8 addr1[ETH_ALEN];343 u8 addr2[ETH_ALEN];344 u8 payload[];345} __packed;346 347struct libipw_hdr_3addr {348 /* New members MUST be added within the __struct_group() macro below. */349 __struct_group(libipw_hdr_3addr_hdr, hdr, __packed,350 __le16 frame_ctl;351 __le16 duration_id;352 u8 addr1[ETH_ALEN];353 u8 addr2[ETH_ALEN];354 u8 addr3[ETH_ALEN];355 __le16 seq_ctl;356 );357 u8 payload[];358} __packed;359static_assert(offsetof(struct libipw_hdr_3addr, payload) == sizeof(struct libipw_hdr_3addr_hdr),360 "struct member likely outside of __struct_group()");361 362struct libipw_hdr_4addr {363 __le16 frame_ctl;364 __le16 duration_id;365 u8 addr1[ETH_ALEN];366 u8 addr2[ETH_ALEN];367 u8 addr3[ETH_ALEN];368 __le16 seq_ctl;369 u8 addr4[ETH_ALEN];370 u8 payload[];371} __packed;372 373struct libipw_hdr_3addrqos {374 __le16 frame_ctl;375 __le16 duration_id;376 u8 addr1[ETH_ALEN];377 u8 addr2[ETH_ALEN];378 u8 addr3[ETH_ALEN];379 __le16 seq_ctl;380 u8 payload[0];381 __le16 qos_ctl;382} __packed;383 384struct libipw_info_element {385 u8 id;386 u8 len;387 u8 data[];388} __packed;389 390/*391 * These are the data types that can make up management packets392 *393 u16 auth_algorithm;394 u16 auth_sequence;395 u16 beacon_interval;396 u16 capability;397 u8 current_ap[ETH_ALEN];398 u16 listen_interval;399 struct {400 u16 association_id:14, reserved:2;401 } __packed;402 u32 time_stamp[2];403 u16 reason;404 u16 status;405*/406 407struct libipw_auth {408 struct libipw_hdr_3addr_hdr header;409 __le16 algorithm;410 __le16 transaction;411 __le16 status;412 /* challenge */413 u8 variable[];414} __packed;415 416struct libipw_channel_switch {417 u8 id;418 u8 len;419 u8 mode;420 u8 channel;421 u8 count;422} __packed;423 424struct libipw_action {425 struct libipw_hdr_3addr_hdr header;426 u8 category;427 u8 action;428 union {429 struct libipw_action_exchange {430 u8 token;431 } exchange;432 struct libipw_channel_switch channel_switch;433 434 } format;435} __packed;436 437struct libipw_disassoc {438 struct libipw_hdr_3addr_hdr header;439 __le16 reason;440} __packed;441 442/* Alias deauth for disassoc */443#define libipw_deauth libipw_disassoc444 445struct libipw_probe_request {446 struct libipw_hdr_3addr_hdr header;447 /* SSID, supported rates */448 u8 variable[];449} __packed;450 451struct libipw_probe_response {452 struct libipw_hdr_3addr_hdr header;453 __le32 time_stamp[2];454 __le16 beacon_interval;455 __le16 capability;456 /* SSID, supported rates, FH params, DS params,457 * CF params, IBSS params, TIM (if beacon), RSN */458 u8 variable[];459} __packed;460 461/* Alias beacon for probe_response */462#define libipw_beacon libipw_probe_response463 464struct libipw_reassoc_request {465 struct libipw_hdr_3addr_hdr header;466 __le16 capability;467 __le16 listen_interval;468 u8 current_ap[ETH_ALEN];469 u8 variable[];470} __packed;471 472struct libipw_assoc_response {473 struct libipw_hdr_3addr_hdr header;474 __le16 capability;475 __le16 status;476 __le16 aid;477 /* supported rates */478 u8 variable[];479} __packed;480 481struct libipw_txb {482 u8 nr_frags;483 u8 encrypted;484 u8 rts_included;485 u8 reserved;486 u16 frag_size;487 u16 payload_size;488 struct sk_buff *fragments[] __counted_by(nr_frags);489};490 491/* SWEEP TABLE ENTRIES NUMBER */492#define MAX_SWEEP_TAB_ENTRIES 42493#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7494/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs495 * only use 8, and then use extended rates for the remaining supported496 * rates. Other APs, however, stick all of their supported rates on the497 * main rates information element... */498#define MAX_RATES_LENGTH ((u8)12)499#define MAX_RATES_EX_LENGTH ((u8)16)500#define MAX_NETWORK_COUNT 128501 502#define CRC_LENGTH 4U503 504#define MAX_WPA_IE_LEN 64505 506#define NETWORK_HAS_OFDM (1<<1)507#define NETWORK_HAS_CCK (1<<2)508 509/* QoS structure */510#define NETWORK_HAS_QOS_PARAMETERS (1<<3)511#define NETWORK_HAS_QOS_INFORMATION (1<<4)512#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \513 NETWORK_HAS_QOS_INFORMATION)514 515/* 802.11h */516#define NETWORK_HAS_POWER_CONSTRAINT (1<<5)517#define NETWORK_HAS_CSA (1<<6)518#define NETWORK_HAS_QUIET (1<<7)519#define NETWORK_HAS_IBSS_DFS (1<<8)520#define NETWORK_HAS_TPC_REPORT (1<<9)521 522#define NETWORK_HAS_ERP_VALUE (1<<10)523 524#define QOS_QUEUE_NUM 4525#define QOS_OUI_LEN 3526#define QOS_OUI_TYPE 2527#define QOS_ELEMENT_ID 221528#define QOS_OUI_INFO_SUB_TYPE 0529#define QOS_OUI_PARAM_SUB_TYPE 1530#define QOS_VERSION_1 1531#define QOS_AIFSN_MIN_VALUE 2532 533struct libipw_qos_information_element {534 u8 elementID;535 u8 length;536 u8 qui[QOS_OUI_LEN];537 u8 qui_type;538 u8 qui_subtype;539 u8 version;540 u8 ac_info;541} __packed;542 543struct libipw_qos_ac_parameter {544 u8 aci_aifsn;545 u8 ecw_min_max;546 __le16 tx_op_limit;547} __packed;548 549struct libipw_qos_parameter_info {550 struct libipw_qos_information_element info_element;551 u8 reserved;552 struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];553} __packed;554 555struct libipw_qos_parameters {556 __le16 cw_min[QOS_QUEUE_NUM];557 __le16 cw_max[QOS_QUEUE_NUM];558 u8 aifs[QOS_QUEUE_NUM];559 u8 flag[QOS_QUEUE_NUM];560 __le16 tx_op_limit[QOS_QUEUE_NUM];561} __packed;562 563struct libipw_qos_data {564 struct libipw_qos_parameters parameters;565 int active;566 int supported;567 u8 param_count;568 u8 old_param_count;569};570 571struct libipw_tim_parameters {572 u8 tim_count;573 u8 tim_period;574} __packed;575 576/*******************************************************/577 578struct libipw_tpc_report {579 u8 transmit_power;580 u8 link_margin;581} __packed;582 583struct libipw_channel_map {584 u8 channel;585 u8 map;586} __packed;587 588struct libipw_csa {589 u8 mode;590 u8 channel;591 u8 count;592} __packed;593 594struct libipw_quiet {595 u8 count;596 u8 period;597 u8 duration;598 u8 offset;599} __packed;600 601struct libipw_network {602 /* These entries are used to identify a unique network */603 u8 bssid[ETH_ALEN];604 u8 channel;605 /* Ensure null-terminated for any debug msgs */606 u8 ssid[IW_ESSID_MAX_SIZE + 1];607 u8 ssid_len;608 609 struct libipw_qos_data qos_data;610 611 /* These are network statistics */612 struct libipw_rx_stats stats;613 u16 capability;614 u8 rates[MAX_RATES_LENGTH];615 u8 rates_len;616 u8 rates_ex[MAX_RATES_EX_LENGTH];617 u8 rates_ex_len;618 unsigned long last_scanned;619 u8 mode;620 u32 flags;621 u32 last_associate;622 u32 time_stamp[2];623 u16 beacon_interval;624 u16 listen_interval;625 u16 atim_window;626 u8 erp_value;627 u8 wpa_ie[MAX_WPA_IE_LEN];628 size_t wpa_ie_len;629 u8 rsn_ie[MAX_WPA_IE_LEN];630 size_t rsn_ie_len;631 struct libipw_tim_parameters tim;632 633 /* 802.11h info */634 635 /* Power Constraint - mandatory if spctrm mgmt required */636 u8 power_constraint;637 638 /* TPC Report - mandatory if spctrm mgmt required */639 struct libipw_tpc_report tpc_report;640 641 /* Channel Switch Announcement - optional if spctrm mgmt required */642 struct libipw_csa csa;643 644 /* Quiet - optional if spctrm mgmt required */645 struct libipw_quiet quiet;646 647 struct list_head list;648};649 650enum libipw_state {651 LIBIPW_UNINITIALIZED = 0,652 LIBIPW_INITIALIZED,653 LIBIPW_ASSOCIATING,654 LIBIPW_ASSOCIATED,655 LIBIPW_AUTHENTICATING,656 LIBIPW_AUTHENTICATED,657 LIBIPW_SHUTDOWN658};659 660#define DEFAULT_MAX_SCAN_AGE (15 * HZ)661#define DEFAULT_FTS 2346662 663#define CFG_LIBIPW_RESERVE_FCS (1<<0)664#define CFG_LIBIPW_COMPUTE_FCS (1<<1)665#define CFG_LIBIPW_RTS (1<<2)666 667#define LIBIPW_24GHZ_MIN_CHANNEL 1668#define LIBIPW_24GHZ_MAX_CHANNEL 14669#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \670 LIBIPW_24GHZ_MIN_CHANNEL + 1)671 672#define LIBIPW_52GHZ_MIN_CHANNEL 34673#define LIBIPW_52GHZ_MAX_CHANNEL 165674#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \675 LIBIPW_52GHZ_MIN_CHANNEL + 1)676 677enum {678 LIBIPW_CH_PASSIVE_ONLY = (1 << 0),679 LIBIPW_CH_80211H_RULES = (1 << 1),680 LIBIPW_CH_B_ONLY = (1 << 2),681 LIBIPW_CH_NO_IBSS = (1 << 3),682 LIBIPW_CH_UNIFORM_SPREADING = (1 << 4),683 LIBIPW_CH_RADAR_DETECT = (1 << 5),684 LIBIPW_CH_INVALID = (1 << 6),685};686 687struct libipw_channel {688 u32 freq; /* in MHz */689 u8 channel;690 u8 flags;691 u8 max_power; /* in dBm */692};693 694struct libipw_geo {695 u8 name[4];696 u8 bg_channels;697 u8 a_channels;698 struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];699 struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];700};701 702struct libipw_device {703 struct net_device *dev;704 struct wireless_dev wdev;705 struct libipw_security sec;706 707 /* Bookkeeping structures */708 struct libipw_stats ieee_stats;709 710 struct libipw_geo geo;711 struct ieee80211_supported_band bg_band;712 struct ieee80211_supported_band a_band;713 714 /* Probe / Beacon management */715 struct list_head network_free_list;716 struct list_head network_list;717 struct libipw_network *networks[MAX_NETWORK_COUNT];718 int scans;719 int scan_age;720 721 int iw_mode; /* operating mode (IW_MODE_*) */722 struct iw_spy_data spy_data; /* iwspy support */723 724 spinlock_t lock;725 726 int tx_headroom; /* Set to size of any additional room needed at front727 * of allocated Tx SKBs */728 u32 config;729 730 /* WEP and other encryption related settings at the device level */731 int open_wep; /* Set to 1 to allow unencrypted frames */732 733 /* If the host performs {en,de}cryption, then set to 1 */734 int host_encrypt;735 int host_encrypt_msdu;736 int host_decrypt;737 /* host performs multicast decryption */738 int host_mc_decrypt;739 740 /* host should strip IV and ICV from protected frames */741 /* meaningful only when hardware decryption is being used */742 int host_strip_iv_icv;743 744 int host_open_frag;745 int ieee802_1x; /* is IEEE 802.1X used */746 747 /* WPA data */748 int wpa_enabled;749 int drop_unencrypted;750 int privacy_invoked;751 size_t wpa_ie_len;752 u8 *wpa_ie;753 754 struct lib80211_crypt_info crypt_info;755 756 int bcrx_sta_key; /* use individual keys to override default keys even757 * with RX of broad/multicast frames */758 759 /* Fragmentation structures */760 struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];761 unsigned int frag_next_idx;762 u16 fts; /* Fragmentation Threshold */763 u16 rts; /* RTS threshold */764 765 /* Association info */766 u8 bssid[ETH_ALEN];767 768 enum libipw_state state;769 770 int mode; /* A, B, G */771 int modulation; /* CCK, OFDM */772 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */773 int abg_true; /* ABG flag */774 775 int perfect_rssi;776 int worst_rssi;777 778 u16 prev_seq_ctl; /* used to drop duplicate frames */779 780 /* Callback functions */781 void (*set_security) (struct net_device * dev,782 struct libipw_security * sec);783 netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,784 struct net_device * dev, int pri);785 int (*is_queue_full) (struct net_device * dev, int pri);786 787 int (*handle_management) (struct net_device * dev,788 struct libipw_network * network, u16 type);789 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);790 791 /* Typical STA methods */792 int (*handle_auth) (struct net_device * dev,793 struct libipw_auth * auth);794 int (*handle_deauth) (struct net_device * dev,795 struct libipw_deauth * auth);796 int (*handle_action) (struct net_device * dev,797 struct libipw_action * action,798 struct libipw_rx_stats * stats);799 int (*handle_disassoc) (struct net_device * dev,800 struct libipw_disassoc * assoc);801 int (*handle_beacon) (struct net_device * dev,802 struct libipw_beacon * beacon,803 struct libipw_network * network);804 int (*handle_probe_response) (struct net_device * dev,805 struct libipw_probe_response * resp,806 struct libipw_network * network);807 int (*handle_probe_request) (struct net_device * dev,808 struct libipw_probe_request * req,809 struct libipw_rx_stats * stats);810 int (*handle_assoc_response) (struct net_device * dev,811 struct libipw_assoc_response * resp,812 struct libipw_network * network);813 814 /* Typical AP methods */815 int (*handle_assoc_request) (struct net_device * dev);816 int (*handle_reassoc_request) (struct net_device * dev,817 struct libipw_reassoc_request * req);818 819 /* This must be the last item so that it points to the data820 * allocated beyond this structure by alloc_libipw */821 u8 priv[];822};823 824#define IEEE_A (1<<0)825#define IEEE_B (1<<1)826#define IEEE_G (1<<2)827#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)828 829static inline void *libipw_priv(struct net_device *dev)830{831 return ((struct libipw_device *)netdev_priv(dev))->priv;832}833 834static inline int libipw_is_valid_mode(struct libipw_device *ieee,835 int mode)836{837 /*838 * It is possible for both access points and our device to support839 * combinations of modes, so as long as there is one valid combination840 * of ap/device supported modes, then return success841 *842 */843 if ((mode & IEEE_A) &&844 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&845 (ieee->freq_band & LIBIPW_52GHZ_BAND))846 return 1;847 848 if ((mode & IEEE_G) &&849 (ieee->modulation & LIBIPW_OFDM_MODULATION) &&850 (ieee->freq_band & LIBIPW_24GHZ_BAND))851 return 1;852 853 if ((mode & IEEE_B) &&854 (ieee->modulation & LIBIPW_CCK_MODULATION) &&855 (ieee->freq_band & LIBIPW_24GHZ_BAND))856 return 1;857 858 return 0;859}860 861static inline int libipw_get_hdrlen(u16 fc)862{863 int hdrlen = LIBIPW_3ADDR_LEN;864 u16 stype = WLAN_FC_GET_STYPE(fc);865 866 switch (WLAN_FC_GET_TYPE(fc)) {867 case IEEE80211_FTYPE_DATA:868 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))869 hdrlen = LIBIPW_4ADDR_LEN;870 if (stype & IEEE80211_STYPE_QOS_DATA)871 hdrlen += 2;872 break;873 case IEEE80211_FTYPE_CTL:874 switch (WLAN_FC_GET_STYPE(fc)) {875 case IEEE80211_STYPE_CTS:876 case IEEE80211_STYPE_ACK:877 hdrlen = LIBIPW_1ADDR_LEN;878 break;879 default:880 hdrlen = LIBIPW_2ADDR_LEN;881 break;882 }883 break;884 }885 886 return hdrlen;887}888 889static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)890{891 switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {892 case LIBIPW_1ADDR_LEN:893 return ((struct libipw_hdr_1addr *)hdr)->payload;894 case LIBIPW_2ADDR_LEN:895 return ((struct libipw_hdr_2addr *)hdr)->payload;896 case LIBIPW_3ADDR_LEN:897 return ((struct libipw_hdr_3addr *)hdr)->payload;898 case LIBIPW_4ADDR_LEN:899 return ((struct libipw_hdr_4addr *)hdr)->payload;900 }901 return NULL;902}903 904static inline int libipw_is_ofdm_rate(u8 rate)905{906 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {907 case LIBIPW_OFDM_RATE_6MB:908 case LIBIPW_OFDM_RATE_9MB:909 case LIBIPW_OFDM_RATE_12MB:910 case LIBIPW_OFDM_RATE_18MB:911 case LIBIPW_OFDM_RATE_24MB:912 case LIBIPW_OFDM_RATE_36MB:913 case LIBIPW_OFDM_RATE_48MB:914 case LIBIPW_OFDM_RATE_54MB:915 return 1;916 }917 return 0;918}919 920static inline int libipw_is_cck_rate(u8 rate)921{922 switch (rate & ~LIBIPW_BASIC_RATE_MASK) {923 case LIBIPW_CCK_RATE_1MB:924 case LIBIPW_CCK_RATE_2MB:925 case LIBIPW_CCK_RATE_5MB:926 case LIBIPW_CCK_RATE_11MB:927 return 1;928 }929 return 0;930}931 932/* libipw.c */933void free_libipw(struct net_device *dev, int monitor);934struct net_device *alloc_libipw(int sizeof_priv, int monitor);935 936void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs);937 938int libipw_set_encryption(struct libipw_device *ieee);939 940/* libipw_tx.c */941netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev);942void libipw_txb_free(struct libipw_txb *);943 944/* libipw_rx.c */945void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb,946 struct libipw_rx_stats *stats);947int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,948 struct libipw_rx_stats *rx_stats);949/* make sure to set stats->len */950void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header,951 struct libipw_rx_stats *stats);952 953/* libipw_geo.c */954const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee);955void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo);956 957int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel);958int libipw_channel_to_index(struct libipw_device *ieee, u8 channel);959u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);960u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel);961const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee,962 u8 channel);963u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel);964 965/* libipw_wx.c */966int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info,967 union iwreq_data *wrqu, char *key);968int libipw_wx_set_encode(struct libipw_device *ieee,969 struct iw_request_info *info, union iwreq_data *wrqu,970 char *key);971int libipw_wx_get_encode(struct libipw_device *ieee,972 struct iw_request_info *info, union iwreq_data *wrqu,973 char *key);974int libipw_wx_set_encodeext(struct libipw_device *ieee,975 struct iw_request_info *info,976 union iwreq_data *wrqu, char *extra);977int libipw_wx_get_encodeext(struct libipw_device *ieee,978 struct iw_request_info *info,979 union iwreq_data *wrqu, char *extra);980 981static inline void libipw_increment_scans(struct libipw_device *ieee)982{983 ieee->scans++;984}985 986static inline int libipw_get_scans(struct libipw_device *ieee)987{988 return ieee->scans;989}990 991#endif /* LIBIPW_H */992