/* * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11 * remains copyright by the original authors * * Portions of the merged code are based on Host AP (software wireless * LAN access point) driver for Intersil Prism2/2.5/3. * * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen * * Copyright (c) 2002-2003, Jouni Malinen * * Adaption to a generic IEEE 802.11 stack by James Ketrenos * * Copyright (c) 2004-2005, Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. See README and COPYING for * more details. * * API Version History * 1.0.x -- Initial version * 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs, * various structure changes, and crypto API init method */ #ifndef IEEE80211_H #define IEEE80211_H #include /* ETH_ALEN */ #include /* ARRAY_SIZE */ #include #define IEEE80211_VERSION "git-1.1.7" #define IEEE80211_DATA_LEN 2304 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section 6.2.1.1.2. The figure in section 7.1.2 suggests a body size of up to 2312 bytes is allowed, which is a bit confusing, I suspect this 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_1ADDR_LEN 10 #define IEEE80211_2ADDR_LEN 16 #define IEEE80211_3ADDR_LEN 24 #define IEEE80211_4ADDR_LEN 30 #define IEEE80211_FCS_LEN 4 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) #define MIN_FRAG_THRESHOLD 256U #define MAX_FRAG_THRESHOLD 2346U /* Frame control field constants */ #define IEEE80211_FCTL_VERS 0x0003 #define IEEE80211_FCTL_FTYPE 0x000c #define IEEE80211_FCTL_STYPE 0x00f0 #define IEEE80211_FCTL_TODS 0x0100 #define IEEE80211_FCTL_FROMDS 0x0200 #define IEEE80211_FCTL_MOREFRAGS 0x0400 #define IEEE80211_FCTL_RETRY 0x0800 #define IEEE80211_FCTL_PM 0x1000 #define IEEE80211_FCTL_MOREDATA 0x2000 #define IEEE80211_FCTL_PROTECTED 0x4000 #define IEEE80211_FCTL_ORDER 0x8000 #define IEEE80211_FTYPE_MGMT 0x0000 #define IEEE80211_FTYPE_CTL 0x0004 #define IEEE80211_FTYPE_DATA 0x0008 /* management */ #define IEEE80211_STYPE_ASSOC_REQ 0x0000 #define IEEE80211_STYPE_ASSOC_RESP 0x0010 #define IEEE80211_STYPE_REASSOC_REQ 0x0020 #define IEEE80211_STYPE_REASSOC_RESP 0x0030 #define IEEE80211_STYPE_PROBE_REQ 0x0040 #define IEEE80211_STYPE_PROBE_RESP 0x0050 #define IEEE80211_STYPE_BEACON 0x0080 #define IEEE80211_STYPE_ATIM 0x0090 #define IEEE80211_STYPE_DISASSOC 0x00A0 #define IEEE80211_STYPE_AUTH 0x00B0 #define IEEE80211_STYPE_DEAUTH 0x00C0 #define IEEE80211_STYPE_ACTION 0x00D0 /* control */ #define IEEE80211_STYPE_PSPOLL 0x00A0 #define IEEE80211_STYPE_RTS 0x00B0 #define IEEE80211_STYPE_CTS 0x00C0 #define IEEE80211_STYPE_ACK 0x00D0 #define IEEE80211_STYPE_CFEND 0x00E0 #define IEEE80211_STYPE_CFENDACK 0x00F0 /* data */ #define IEEE80211_STYPE_DATA 0x0000 #define IEEE80211_STYPE_DATA_CFACK 0x0010 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 #define IEEE80211_STYPE_NULLFUNC 0x0040 #define IEEE80211_STYPE_CFACK 0x0050 #define IEEE80211_STYPE_CFPOLL 0x0060 #define IEEE80211_STYPE_CFACKPOLL 0x0070 #define IEEE80211_STYPE_QOS_DATA 0x0080 #define IEEE80211_SCTL_FRAG 0x000F #define IEEE80211_SCTL_SEQ 0xFFF0 /* debug macros */ #ifdef CONFIG_IEEE80211_DEBUG extern u32 ieee80211_debug_level; #define IEEE80211_DEBUG(level, fmt, args...) \ do { if (ieee80211_debug_level & (level)) \ printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0) #else #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0) #endif /* CONFIG_IEEE80211_DEBUG */ /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */ #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5] /* escape_essid() is intended to be used in debug (and possibly error) * 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: * * If you are defining a new debug classification, simply add it to the #define * list here in the form of: * * #define IEEE80211_DL_xxxx VALUE * * shifting value to the left one bit from the previous entry. xxxx should be * the name of the classification (for example, WEP) * * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want * to send output to that classification. * * To add your debug level to the list of levels seen when you perform * * % cat /proc/net/ieee80211/debug_level * * you simply need to add your entry to the ieee80211_debug_level array. * * If you do not see debug_level in /proc/net/ieee80211 then you do not have * CONFIG_IEEE80211_DEBUG defined in your kernel configuration * */ #define IEEE80211_DL_INFO (1<<0) #define IEEE80211_DL_WX (1<<1) #define IEEE80211_DL_SCAN (1<<2) #define IEEE80211_DL_STATE (1<<3) #define IEEE80211_DL_MGMT (1<<4) #define IEEE80211_DL_FRAG (1<<5) #define IEEE80211_DL_DROP (1<<7) #define IEEE80211_DL_TX (1<<8) #define IEEE80211_DL_RX (1<<9) #define IEEE80211_DL_QOS (1<<31) #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a) #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a) #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a) #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a) #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a) #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a) #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a) #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a) #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a) #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a) #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a) #define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a) #include #include #include /* ARPHRD_ETHER */ #ifndef WIRELESS_SPY #define WIRELESS_SPY /* enable iwspy support */ #endif #include /* 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_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ #ifndef ETH_P_80211_RAW #define ETH_P_80211_RAW (ETH_P_ECONET + 1) #endif /* IEEE 802.11 defines */ #define P80211_OUI_LEN 3 struct ieee80211_snap_hdr { u8 dsap; /* always 0xAA */ u8 ssap; /* always 0xAA */ u8 ctrl; /* always 0x03 */ u8 oui[P80211_OUI_LEN]; /* organizational universal id */ } __attribute__ ((packed)); #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS) #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ) /* Authentication algorithms */ #define WLAN_AUTH_OPEN 0 #define WLAN_AUTH_SHARED_KEY 1 #define WLAN_AUTH_LEAP 2 #define WLAN_AUTH_CHALLENGE_LEN 128 #define WLAN_CAPABILITY_ESS (1<<0) #define WLAN_CAPABILITY_IBSS (1<<1) #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) #define WLAN_CAPABILITY_PRIVACY (1<<4) #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) #define WLAN_CAPABILITY_PBCC (1<<6) #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) #define WLAN_CAPABILITY_QOS (1<<9) #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) /* Status codes */ enum ieee80211_statuscode { WLAN_STATUS_SUCCESS = 0, WLAN_STATUS_UNSPECIFIED_FAILURE = 1, WLAN_STATUS_CAPS_UNSUPPORTED = 10, WLAN_STATUS_REASSOC_NO_ASSOC = 11, WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, WLAN_STATUS_CHALLENGE_FAIL = 15, WLAN_STATUS_AUTH_TIMEOUT = 16, WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, WLAN_STATUS_ASSOC_DENIED_RATES = 18, /* 802.11b */ WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, /* 802.11h */ WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, /* 802.11g */ WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, /* 802.11i */ WLAN_STATUS_INVALID_IE = 40, WLAN_STATUS_INVALID_GROUP_CIPHER = 41, WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, WLAN_STATUS_INVALID_AKMP = 43, WLAN_STATUS_UNSUPP_RSN_VERSION = 44, WLAN_STATUS_INVALID_RSN_IE_CAP = 45, WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, }; /* Reason codes */ enum ieee80211_reasoncode { WLAN_REASON_UNSPECIFIED = 1, WLAN_REASON_PREV_AUTH_NOT_VALID = 2, WLAN_REASON_DEAUTH_LEAVING = 3, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, WLAN_REASON_DISASSOC_AP_BUSY = 5, WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, /* 802.11h */ WLAN_REASON_DISASSOC_BAD_POWER = 10, WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, /* 802.11i */ WLAN_REASON_INVALID_IE = 13, WLAN_REASON_MIC_FAILURE = 14, WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, WLAN_REASON_IE_DIFFERENT = 17, WLAN_REASON_INVALID_GROUP_CIPHER = 18, WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, WLAN_REASON_INVALID_AKMP = 20, WLAN_REASON_UNSUPP_RSN_VERSION = 21, WLAN_REASON_INVALID_RSN_IE_CAP = 22, WLAN_REASON_IEEE8021X_FAILED = 23, WLAN_REASON_CIPHER_SUITE_REJECTED = 24, }; /* Action categories - 802.11h */ enum ieee80211_actioncategories { WLAN_ACTION_SPECTRUM_MGMT = 0, /* Reserved 1-127 */ /* Error 128-255 */ }; /* Action details - 802.11h */ enum ieee80211_actiondetails { WLAN_ACTION_CATEGORY_MEASURE_REQUEST = 0, WLAN_ACTION_CATEGORY_MEASURE_REPORT = 1, WLAN_ACTION_CATEGORY_TPC_REQUEST = 2, WLAN_ACTION_CATEGORY_TPC_REPORT = 3, WLAN_ACTION_CATEGORY_CHANNEL_SWITCH = 4, /* 5 - 255 Reserved */ }; #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) #define IEEE80211_24GHZ_BAND (1<<0) #define IEEE80211_52GHZ_BAND (1<<1) #define IEEE80211_CCK_RATE_1MB 0x02 #define IEEE80211_CCK_RATE_2MB 0x04 #define IEEE80211_CCK_RATE_5MB 0x0B #define IEEE80211_CCK_RATE_11MB 0x16 #define IEEE80211_OFDM_RATE_6MB 0x0C #define IEEE80211_OFDM_RATE_9MB 0x12 #define IEEE80211_OFDM_RATE_12MB 0x18 #define IEEE80211_OFDM_RATE_18MB 0x24 #define IEEE80211_OFDM_RATE_24MB 0x30 #define IEEE80211_OFDM_RATE_36MB 0x48 #define IEEE80211_OFDM_RATE_48MB 0x60 #define IEEE80211_OFDM_RATE_54MB 0x6C #define IEEE80211_BASIC_RATE_MASK 0x80 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0) #define IEEE80211_CCK_RATE_2MB_MASK (1<<1) #define IEEE80211_CCK_RATE_5MB_MASK (1<<2) #define IEEE80211_CCK_RATE_11MB_MASK (1<<3) #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4) #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5) #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6) #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7) #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8) #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9) #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10) #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11) #define IEEE80211_CCK_RATES_MASK 0x0000000F #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \ IEEE80211_CCK_RATE_2MB_MASK) #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \ IEEE80211_CCK_RATE_5MB_MASK | \ IEEE80211_CCK_RATE_11MB_MASK) #define IEEE80211_OFDM_RATES_MASK 0x00000FF0 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \ IEEE80211_OFDM_RATE_12MB_MASK | \ IEEE80211_OFDM_RATE_24MB_MASK) #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \ IEEE80211_OFDM_RATE_9MB_MASK | \ IEEE80211_OFDM_RATE_18MB_MASK | \ IEEE80211_OFDM_RATE_36MB_MASK | \ IEEE80211_OFDM_RATE_48MB_MASK | \ IEEE80211_OFDM_RATE_54MB_MASK) #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \ IEEE80211_CCK_DEFAULT_RATES_MASK) #define IEEE80211_NUM_OFDM_RATES 8 #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. * For ieee80211_rx_mgt, you need to set at least the 'len' parameter. */ struct ieee80211_rx_stats { u32 mac_time; s8 rssi; u8 signal; u8 noise; u16 rate; /* in 100 kbps */ u8 received_channel; u8 control; u8 mask; u8 freq; u16 len; u64 tsf; u32 beacon_time; }; /* IEEE 802.11 requires that STA supports concurrent reception of at least * three fragmented frames. This define can be increased to support more * concurrent frames, but it should be noted that each entry can consume about * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ #define IEEE80211_FRAG_CACHE_LEN 4 struct ieee80211_frag_entry { unsigned long first_frag_time; unsigned int seq; unsigned int last_frag; struct sk_buff *skb; u8 src_addr[ETH_ALEN]; u8 dst_addr[ETH_ALEN]; }; struct ieee80211_stats { unsigned int tx_unicast_frames; unsigned int tx_multicast_frames; unsigned int tx_fragments; unsigned int tx_unicast_octets; unsigned int tx_multicast_octets; unsigned int tx_deferred_transmissions; unsigned int tx_single_retry_frames; unsigned int tx_multiple_retry_frames; unsigned int tx_retry_limit_exceeded; unsigned int tx_discards; unsigned int rx_unicast_frames; unsigned int rx_multicast_frames; unsigned int rx_fragments; unsigned int rx_unicast_octets; unsigned int rx_multicast_octets; unsigned int rx_fcs_errors; unsigned int rx_discards_no_buffer; unsigned int tx_discards_wrong_sa; unsigned int rx_discards_undecryptable; unsigned int rx_message_in_msg_fragments; unsigned int rx_message_in_bad_msg_fragments; }; struct ieee80211_device; #include "ieee80211_crypt.h" #define SEC_KEY_1 (1<<0) #define SEC_KEY_2 (1<<1) #define SEC_KEY_3 (1<<2) #define SEC_KEY_4 (1<<3) #define SEC_ACTIVE_KEY (1<<4) #define SEC_AUTH_MODE (1<<5) #define SEC_UNICAST_GROUP (1<<6) #define SEC_LEVEL (1<<7) #define SEC_ENABLED (1<<8) #define SEC_ENCRYPT (1<<9) #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_ALG_NONE 0 #define SEC_ALG_WEP 1 #define SEC_ALG_TKIP 2 #define SEC_ALG_CCMP 3 #define WEP_KEYS 4 #define WEP_KEY_LEN 13 #define SCM_KEY_LEN 32 #define SCM_TEMPORAL_KEY_LENGTH 16 struct ieee80211_security { u16 active_key:2, enabled:1, auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1; u8 encode_alg[WEP_KEYS]; u8 key_sizes[WEP_KEYS]; u8 keys[WEP_KEYS][SCM_KEY_LEN]; u8 level; u16 flags; } __attribute__ ((packed)); /* 802.11 data frame from AP ,-------------------------------------------------------------------. Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | |------|------|---------|---------|---------|------|---------|------| Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | | | tion | (BSSID) | | | ence | data | | `-------------------------------------------------------------------' Total: 28-2340 bytes */ #define BEACON_PROBE_SSID_ID_POSITION 12 /* Management Frame Information Element Types */ enum ieee80211_mfie { MFIE_TYPE_SSID = 0, MFIE_TYPE_RATES = 1, MFIE_TYPE_FH_SET = 2, MFIE_TYPE_DS_SET = 3, MFIE_TYPE_CF_SET = 4, MFIE_TYPE_TIM = 5, MFIE_TYPE_IBSS_SET = 6, MFIE_TYPE_COUNTRY = 7, MFIE_TYPE_HOP_PARAMS = 8, MFIE_TYPE_HOP_TABLE = 9, MFIE_TYPE_REQUEST = 10, MFIE_TYPE_CHALLENGE = 16, MFIE_TYPE_POWER_CONSTRAINT = 32, MFIE_TYPE_POWER_CAPABILITY = 33, MFIE_TYPE_TPC_REQUEST = 34, MFIE_TYPE_TPC_REPORT = 35, MFIE_TYPE_SUPP_CHANNELS = 36, MFIE_TYPE_CSA = 37, MFIE_TYPE_MEASURE_REQUEST = 38, MFIE_TYPE_MEASURE_REPORT = 39, MFIE_TYPE_QUIET = 40, MFIE_TYPE_IBSS_DFS = 41, MFIE_TYPE_ERP_INFO = 42, MFIE_TYPE_RSN = 48, MFIE_TYPE_RATES_EX = 50, MFIE_TYPE_GENERIC = 221, MFIE_TYPE_QOS_PARAMETER = 222, }; /* Minimal header; can be used for passing 802.11 frames with sufficient * information to determine what type of underlying data type is actually * stored in the data. */ struct ieee80211_hdr { __le16 frame_ctl; __le16 duration_id; u8 payload[0]; } __attribute__ ((packed)); struct ieee80211_hdr_1addr { __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 payload[0]; } __attribute__ ((packed)); struct ieee80211_hdr_2addr { __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 payload[0]; } __attribute__ ((packed)); struct ieee80211_hdr_3addr { __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; __le16 seq_ctl; u8 payload[0]; } __attribute__ ((packed)); struct ieee80211_hdr_4addr { __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; __le16 seq_ctl; u8 addr4[ETH_ALEN]; u8 payload[0]; } __attribute__ ((packed)); struct ieee80211_hdr_3addrqos { __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; __le16 seq_ctl; u8 payload[0]; __le16 qos_ctl; } __attribute__ ((packed)); struct ieee80211_hdr_4addrqos { __le16 frame_ctl; __le16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; __le16 seq_ctl; u8 addr4[ETH_ALEN]; u8 payload[0]; __le16 qos_ctl; } __attribute__ ((packed)); struct ieee80211_info_element { u8 id; u8 len; u8 data[0]; } __attribute__ ((packed)); /* * These are the data types that can make up management packets * u16 auth_algorithm; u16 auth_sequence; u16 beacon_interval; u16 capability; u8 current_ap[ETH_ALEN]; u16 listen_interval; struct { u16 association_id:14, reserved:2; } __attribute__ ((packed)); u32 time_stamp[2]; u16 reason; u16 status; */ struct ieee80211_auth { struct ieee80211_hdr_3addr header; __le16 algorithm; __le16 transaction; __le16 status; /* challenge */ struct ieee80211_info_element info_element[0]; } __attribute__ ((packed)); struct ieee80211_channel_switch { u8 id; u8 len; u8 mode; u8 channel; u8 count; } __attribute__ ((packed)); struct ieee80211_action { struct ieee80211_hdr_3addr header; u8 category; u8 action; union { struct ieee80211_action_exchange { u8 token; struct ieee80211_info_element info_element[0]; } exchange; struct ieee80211_channel_switch channel_switch; } format; } __attribute__ ((packed)); struct ieee80211_disassoc { struct ieee80211_hdr_3addr header; __le16 reason; } __attribute__ ((packed)); /* Alias deauth for disassoc */ #define ieee80211_deauth ieee80211_disassoc struct ieee80211_probe_request { struct ieee80211_hdr_3addr header; /* SSID, supported rates */ struct ieee80211_info_element info_element[0]; } __attribute__ ((packed)); struct ieee80211_probe_response { struct ieee80211_hdr_3addr header; u32 time_stamp[2]; __le16 beacon_interval; __le16 capability; /* SSID, supported rates, FH params, DS params, * CF params, IBSS params, TIM (if beacon), RSN */ struct ieee80211_info_element info_element[0]; } __attribute__ ((packed)); /* Alias beacon for probe_response */ #define ieee80211_beacon ieee80211_probe_response struct ieee80211_assoc_request { struct ieee80211_hdr_3addr header; __le16 capability; __le16 listen_interval; /* SSID, supported rates, RSN */ struct ieee80211_info_element info_element[0]; } __attribute__ ((packed)); struct ieee80211_reassoc_request { struct ieee80211_hdr_3addr header; __le16 capability; __le16 listen_interval; u8 current_ap[ETH_ALEN]; struct ieee80211_info_element info_element[0]; } __attribute__ ((packed)); struct ieee80211_assoc_response { struct ieee80211_hdr_3addr header; __le16 capability; __le16 status; __le16 aid; /* supported rates */ struct ieee80211_info_element info_element[0]; } __attribute__ ((packed)); struct ieee80211_txb { u8 nr_frags; u8 encrypted; u8 rts_included; u8 reserved; __le16 frag_size; __le16 payload_size; struct sk_buff *fragments[0]; }; /* SWEEP TABLE ENTRIES NUMBER */ #define MAX_SWEEP_TAB_ENTRIES 42 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs * only use 8, and then use extended rates for the remaining supported * rates. Other APs, however, stick all of their supported rates on the * main rates information element... */ #define MAX_RATES_LENGTH ((u8)12) #define MAX_RATES_EX_LENGTH ((u8)16) #define MAX_NETWORK_COUNT 128 #define CRC_LENGTH 4U #define MAX_WPA_IE_LEN 64 #define NETWORK_EMPTY_ESSID (1<<0) #define NETWORK_HAS_OFDM (1<<1) #define NETWORK_HAS_CCK (1<<2) /* QoS structure */ #define NETWORK_HAS_QOS_PARAMETERS (1<<3) #define NETWORK_HAS_QOS_INFORMATION (1<<4) #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \ NETWORK_HAS_QOS_INFORMATION) /* 802.11h */ #define NETWORK_HAS_POWER_CONSTRAINT (1<<5) #define NETWORK_HAS_CSA (1<<6) #define NETWORK_HAS_QUIET (1<<7) #define NETWORK_HAS_IBSS_DFS (1<<8) #define NETWORK_HAS_TPC_REPORT (1<<9) #define QOS_QUEUE_NUM 4 #define QOS_OUI_LEN 3 #define QOS_OUI_TYPE 2 #define QOS_ELEMENT_ID 221 #define QOS_OUI_INFO_SUB_TYPE 0 #define QOS_OUI_PARAM_SUB_TYPE 1 #define QOS_VERSION_1 1 #define QOS_AIFSN_MIN_VALUE 2 struct ieee80211_qos_information_element { u8 elementID; u8 length; u8 qui[QOS_OUI_LEN]; u8 qui_type; u8 qui_subtype; u8 version; u8 ac_info; } __attribute__ ((packed)); struct ieee80211_qos_ac_parameter { u8 aci_aifsn; u8 ecw_min_max; __le16 tx_op_limit; } __attribute__ ((packed)); struct ieee80211_qos_parameter_info { struct ieee80211_qos_information_element info_element; u8 reserved; struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM]; } __attribute__ ((packed)); struct ieee80211_qos_parameters { __le16 cw_min[QOS_QUEUE_NUM]; __le16 cw_max[QOS_QUEUE_NUM]; u8 aifs[QOS_QUEUE_NUM]; u8 flag[QOS_QUEUE_NUM]; __le16 tx_op_limit[QOS_QUEUE_NUM]; } __attribute__ ((packed)); struct ieee80211_qos_data { struct ieee80211_qos_parameters parameters; int active; int supported; u8 param_count; u8 old_param_count; }; struct ieee80211_tim_parameters { u8 tim_count; u8 tim_period; } __attribute__ ((packed)); /*******************************************************/ enum { /* ieee80211_basic_report.map */ IEEE80211_BASIC_MAP_BSS = (1 << 0), IEEE80211_BASIC_MAP_OFDM = (1 << 1), IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2), IEEE80211_BASIC_MAP_RADAR = (1 << 3), IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4), /* Bits 5-7 are reserved */ }; struct ieee80211_basic_report { u8 channel; __le64 start_time; __le16 duration; u8 map; } __attribute__ ((packed)); enum { /* ieee80211_measurement_request.mode */ /* Bit 0 is reserved */ IEEE80211_MEASUREMENT_ENABLE = (1 << 1), IEEE80211_MEASUREMENT_REQUEST = (1 << 2), IEEE80211_MEASUREMENT_REPORT = (1 << 3), /* Bits 4-7 are reserved */ }; enum { IEEE80211_REPORT_BASIC = 0, /* required */ IEEE80211_REPORT_CCA = 1, /* optional */ IEEE80211_REPORT_RPI = 2, /* optional */ /* 3-255 reserved */ }; struct ieee80211_measurement_params { u8 channel; __le64 start_time; __le16 duration; } __attribute__ ((packed)); struct ieee80211_measurement_request { struct ieee80211_info_element ie; u8 token; u8 mode; u8 type; struct ieee80211_measurement_params params[0]; } __attribute__ ((packed)); struct ieee80211_measurement_report { struct ieee80211_info_element ie; u8 token; u8 mode; u8 type; union { struct ieee80211_basic_report basic[0]; } u; } __attribute__ ((packed)); struct ieee80211_tpc_report { u8 transmit_power; u8 link_margin; } __attribute__ ((packed)); struct ieee80211_channel_map { u8 channel; u8 map; } __attribute__ ((packed)); struct ieee80211_ibss_dfs { struct ieee80211_info_element ie; u8 owner[ETH_ALEN]; u8 recovery_interval; struct ieee80211_channel_map channel_map[0]; }; struct ieee80211_csa { u8 mode; u8 channel; u8 count; } __attribute__ ((packed)); struct ieee80211_quiet { u8 count; u8 period; u8 duration; u8 offset; } __attribute__ ((packed)); struct ieee80211_network { /* These entries are used to identify a unique network */ u8 bssid[ETH_ALEN]; u8 channel; /* Ensure null-terminated for any debug msgs */ u8 ssid[IW_ESSID_MAX_SIZE + 1]; u8 ssid_len; struct ieee80211_qos_data qos_data; /* These are network statistics */ struct ieee80211_rx_stats stats; u16 capability; u8 rates[MAX_RATES_LENGTH]; u8 rates_len; u8 rates_ex[MAX_RATES_EX_LENGTH]; u8 rates_ex_len; unsigned long last_scanned; u8 mode; u32 flags; u32 last_associate; u32 time_stamp[2]; u16 beacon_interval; u16 listen_interval; u16 atim_window; u8 erp_value; u8 wpa_ie[MAX_WPA_IE_LEN]; size_t wpa_ie_len; u8 rsn_ie[MAX_WPA_IE_LEN]; size_t rsn_ie_len; struct ieee80211_tim_parameters tim; /* 802.11h info */ /* Power Constraint - mandatory if spctrm mgmt required */ u8 power_constraint; /* TPC Report - mandatory if spctrm mgmt required */ struct ieee80211_tpc_report tpc_report; /* IBSS DFS - mandatory if spctrm mgmt required and IBSS * NOTE: This is variable length and so must be allocated dynamically */ struct ieee80211_ibss_dfs *ibss_dfs; /* Channel Switch Announcement - optional if spctrm mgmt required */ struct ieee80211_csa csa; /* Quiet - optional if spctrm mgmt required */ struct ieee80211_quiet quiet; struct list_head list; }; enum ieee80211_state { IEEE80211_UNINITIALIZED = 0, IEEE80211_INITIALIZED, IEEE80211_ASSOCIATING, IEEE80211_ASSOCIATED, IEEE80211_AUTHENTICATING, IEEE80211_AUTHENTICATED, IEEE80211_SHUTDOWN }; #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) #define CFG_IEEE80211_RTS (1<<2) #define IEEE80211_24GHZ_MIN_CHANNEL 1 #define IEEE80211_24GHZ_MAX_CHANNEL 14 #define IEEE80211_24GHZ_CHANNELS 14 #define IEEE80211_52GHZ_MIN_CHANNEL 34 #define IEEE80211_52GHZ_MAX_CHANNEL 165 #define IEEE80211_52GHZ_CHANNELS 131 enum { IEEE80211_CH_PASSIVE_ONLY = (1 << 0), IEEE80211_CH_B_ONLY = (1 << 2), IEEE80211_CH_NO_IBSS = (1 << 3), IEEE80211_CH_UNIFORM_SPREADING = (1 << 4), IEEE80211_CH_RADAR_DETECT = (1 << 5), IEEE80211_CH_INVALID = (1 << 6), }; struct ieee80211_channel { u32 freq; u8 channel; u8 flags; u8 max_power; }; struct ieee80211_geo { u8 name[4]; u8 bg_channels; u8 a_channels; struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS]; struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS]; }; struct ieee80211_device { struct net_device *dev; struct ieee80211_security sec; /* Bookkeeping structures */ struct net_device_stats stats; struct ieee80211_stats ieee_stats; struct ieee80211_geo geo; /* Probe / Beacon management */ struct list_head network_free_list; struct list_head network_list; struct ieee80211_network *networks; int scans; int scan_age; 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 */ u32 config; /* WEP and other encryption related settings at the device level */ 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 * WEP key changes */ /* If the host performs {en,de}cryption, then set to 1 */ int host_encrypt; int host_encrypt_msdu; int host_decrypt; /* host performs multicast decryption */ int host_mc_decrypt; int host_open_frag; int host_build_iv; int ieee802_1x; /* is IEEE 802.1X used */ /* WPA data */ int wpa_enabled; int drop_unencrypted; int privacy_invoked; size_t wpa_ie_len; u8 *wpa_ie; struct list_head crypt_deinit_list; struct ieee80211_crypt_data *crypt[WEP_KEYS]; int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ struct timer_list crypt_deinit_timer; int crypt_quiesced; 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 rts; /* RTS 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_true; /* 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 pri); int (*reset_port) (struct net_device * dev); int (*is_queue_full) (struct net_device * dev, int pri); int (*handle_management) (struct net_device * dev, struct ieee80211_network * network, u16 type); /* Typical STA methods */ int (*handle_auth) (struct net_device * dev, struct ieee80211_auth * auth); int (*handle_deauth) (struct net_device * dev, struct ieee80211_deauth * auth); int (*handle_action) (struct net_device * dev, struct ieee80211_action * action, struct ieee80211_rx_stats * stats); int (*handle_disassoc) (struct net_device * dev, struct ieee80211_disassoc * assoc); int (*handle_beacon) (struct net_device * dev, struct ieee80211_beacon * beacon, struct ieee80211_network * network); int (*handle_probe_response) (struct net_device * dev, struct ieee80211_probe_response * resp, struct ieee80211_network * network); int (*handle_probe_request) (struct net_device * dev, struct ieee80211_probe_request * req, struct ieee80211_rx_stats * stats); int (*handle_assoc_response) (struct net_device * dev, struct ieee80211_assoc_response * resp, struct ieee80211_network * network); /* Typical AP methods */ int (*handle_assoc_request) (struct net_device * dev); int (*handle_reassoc_request) (struct net_device * dev, struct ieee80211_reassoc_request * req); /* This must be the last item so that it points to the data * allocated beyond this structure by alloc_ieee80211 */ u8 priv[0]; }; #define IEEE_A (1<<0) #define IEEE_B (1<<1) #define IEEE_G (1<<2) #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) static inline void *ieee80211_priv(struct net_device *dev) { return ((struct ieee80211_device *)netdev_priv(dev))->priv; } static inline int ieee80211_is_empty_essid(const char *essid, int essid_len) { /* Single white space is for Linksys APs */ if (essid_len == 1 && essid[0] == ' ') return 1; /* Otherwise, if the entire essid is 0, we assume it is hidden */ while (essid_len) { essid_len--; if (essid[essid_len] != '\0') return 0; } return 1; } static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode) { /* * It is possible for both access points and our device to support * combinations of modes, so as long as there is one valid combination * of ap/device supported modes, then return success * */ if ((mode & IEEE_A) && (ieee->modulation & IEEE80211_OFDM_MODULATION) && (ieee->freq_band & IEEE80211_52GHZ_BAND)) return 1; if ((mode & IEEE_G) && (ieee->modulation & IEEE80211_OFDM_MODULATION) && (ieee->freq_band & IEEE80211_24GHZ_BAND)) return 1; if ((mode & IEEE_B) && (ieee->modulation & IEEE80211_CCK_MODULATION) && (ieee->freq_band & IEEE80211_24GHZ_BAND)) return 1; return 0; } static inline int ieee80211_get_hdrlen(u16 fc) { int hdrlen = IEEE80211_3ADDR_LEN; u16 stype = WLAN_FC_GET_STYPE(fc); switch (WLAN_FC_GET_TYPE(fc)) { case IEEE80211_FTYPE_DATA: if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) hdrlen = IEEE80211_4ADDR_LEN; if (stype & IEEE80211_STYPE_QOS_DATA) hdrlen += 2; break; case IEEE80211_FTYPE_CTL: switch (WLAN_FC_GET_STYPE(fc)) { case IEEE80211_STYPE_CTS: case IEEE80211_STYPE_ACK: hdrlen = IEEE80211_1ADDR_LEN; break; default: hdrlen = IEEE80211_2ADDR_LEN; break; } break; } return hdrlen; } static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr) { switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) { case IEEE80211_1ADDR_LEN: return ((struct ieee80211_hdr_1addr *)hdr)->payload; case IEEE80211_2ADDR_LEN: return ((struct ieee80211_hdr_2addr *)hdr)->payload; case IEEE80211_3ADDR_LEN: return ((struct ieee80211_hdr_3addr *)hdr)->payload; case IEEE80211_4ADDR_LEN: return ((struct ieee80211_hdr_4addr *)hdr)->payload; } return NULL; } static inline int ieee80211_is_ofdm_rate(u8 rate) { switch (rate & ~IEEE80211_BASIC_RATE_MASK) { case IEEE80211_OFDM_RATE_6MB: case IEEE80211_OFDM_RATE_9MB: case IEEE80211_OFDM_RATE_12MB: case IEEE80211_OFDM_RATE_18MB: case IEEE80211_OFDM_RATE_24MB: case IEEE80211_OFDM_RATE_36MB: case IEEE80211_OFDM_RATE_48MB: case IEEE80211_OFDM_RATE_54MB: return 1; } return 0; } static inline int ieee80211_is_cck_rate(u8 rate) { switch (rate & ~IEEE80211_BASIC_RATE_MASK) { case IEEE80211_CCK_RATE_1MB: case IEEE80211_CCK_RATE_2MB: case IEEE80211_CCK_RATE_5MB: case IEEE80211_CCK_RATE_11MB: return 1; } return 0; } /* ieee80211.c */ extern void free_ieee80211(struct net_device *dev); 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 void ieee80211_txb_free(struct ieee80211_txb *); extern int ieee80211_tx_frame(struct ieee80211_device *ieee, struct ieee80211_hdr *frame, int len); /* ieee80211_rx.c */ extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, struct ieee80211_rx_stats *rx_stats); /* make sure to set stats->len */ extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, struct ieee80211_hdr_4addr *header, struct ieee80211_rx_stats *stats); extern void ieee80211_network_reset(struct ieee80211_network *network); /* ieee80211_geo.c */ extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device *ieee); extern int ieee80211_set_geo(struct ieee80211_device *ieee, const struct ieee80211_geo *geo); extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee, u8 channel); extern int ieee80211_channel_to_index(struct ieee80211_device *ieee, u8 channel); extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq); extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee, u8 channel); extern const struct ieee80211_channel *ieee80211_get_channel(struct ieee80211_device *ieee, u8 channel); /* ieee80211_wx.c */ extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *key); extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *key); extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *key); extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *extra); extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee, struct iw_request_info *info, union iwreq_data *wrqu, char *extra); extern int ieee80211_wx_set_auth(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra); extern int ieee80211_wx_get_auth(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra); static inline void ieee80211_increment_scans(struct ieee80211_device *ieee) { ieee->scans++; } static inline int ieee80211_get_scans(struct ieee80211_device *ieee) { return ieee->scans; } #endif /* IEEE80211_H */