/* * 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, 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. */ #ifndef IEEE80211_H #define IEEE80211_H #include /* ETH_ALEN */ #include /* ARRAY_SIZE */ #if WIRELESS_EXT < 17 #define IW_QUAL_QUAL_INVALID 0x10 #define IW_QUAL_LEVEL_INVALID 0x20 #define IW_QUAL_NOISE_INVALID 0x40 #define IW_QUAL_QUAL_UPDATED 0x1 #define IW_QUAL_LEVEL_UPDATED 0x2 #define IW_QUAL_NOISE_UPDATED 0x4 #endif #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_HLEN 30 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) struct ieee80211_hdr { u16 frame_ctl; u16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; u16 seq_ctl; u8 addr4[ETH_ALEN]; } __attribute__ ((packed)); struct ieee80211_hdr_3addr { u16 frame_ctl; u16 duration_id; u8 addr1[ETH_ALEN]; u8 addr2[ETH_ALEN]; u8 addr3[ETH_ALEN]; u16 seq_ctl; } __attribute__ ((packed)); enum eap_type { EAP_PACKET = 0, EAPOL_START, EAPOL_LOGOFF, EAPOL_KEY, EAPOL_ENCAP_ASF_ALERT }; static const char *eap_types[] = { [EAP_PACKET] = "EAP-Packet", [EAPOL_START] = "EAPOL-Start", [EAPOL_LOGOFF] = "EAPOL-Logoff", [EAPOL_KEY] = "EAPOL-Key", [EAPOL_ENCAP_ASF_ALERT] = "EAPOL-Encap-ASF-Alert" }; static inline const char *eap_get_type(int type) { return (type >= ARRAY_SIZE(eap_types)) ? "Unknown" : eap_types[type]; } struct eapol { u8 snap[6]; u16 ethertype; u8 version; u8 type; u16 length; } __attribute__ ((packed)); #define IEEE80211_3ADDR_LEN 24 #define IEEE80211_4ADDR_LEN 30 #define IEEE80211_FCS_LEN 4 #define MIN_FRAG_THRESHOLD 256U #define MAX_FRAG_THRESHOLD 2346U /* Frame control field constants */ #define IEEE80211_FCTL_VERS 0x0002 #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_WEP 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 /* 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_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 */ /* * 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/ipw/debug_level * * you simply need to add your entry to the ipw_debug_levels array. * * If you do not see debug_level in /proc/net/ipw 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_EAP (1<<6) #define IEEE80211_DL_DROP (1<<7) #define IEEE80211_DL_TX (1<<8) #define IEEE80211_DL_RX (1<<9) #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_EAP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_EAP, 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) #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_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_CHALLENGE_LEN 128 #define WLAN_CAPABILITY_BSS (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) /* Status codes */ #define WLAN_STATUS_SUCCESS 0 #define WLAN_STATUS_UNSPECIFIED_FAILURE 1 #define WLAN_STATUS_CAPS_UNSUPPORTED 10 #define WLAN_STATUS_REASSOC_NO_ASSOC 11 #define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12 #define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13 #define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14 #define WLAN_STATUS_CHALLENGE_FAIL 15 #define WLAN_STATUS_AUTH_TIMEOUT 16 #define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17 #define WLAN_STATUS_ASSOC_DENIED_RATES 18 /* 802.11b */ #define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19 #define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20 #define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21 /* Reason codes */ #define WLAN_REASON_UNSPECIFIED 1 #define WLAN_REASON_PREV_AUTH_NOT_VALID 2 #define WLAN_REASON_DEAUTH_LEAVING 3 #define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4 #define WLAN_REASON_DISASSOC_AP_BUSY 5 #define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6 #define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7 #define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8 #define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9 /* Information Element IDs */ #define WLAN_EID_SSID 0 #define WLAN_EID_SUPP_RATES 1 #define WLAN_EID_FH_PARAMS 2 #define WLAN_EID_DS_PARAMS 3 #define WLAN_EID_CF_PARAMS 4 #define WLAN_EID_TIM 5 #define WLAN_EID_IBSS_PARAMS 6 #define WLAN_EID_CHALLENGE 16 #define WLAN_EID_RSN 48 #define WLAN_EID_GENERIC 221 #define IEEE80211_MGMT_HDR_LEN 24 #define IEEE80211_DATA_HDR3_LEN 24 #define IEEE80211_DATA_HDR4_LEN 30 #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. Not setting these will not cause * any adverse affects. */ 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; }; /* 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; #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_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 WEP_KEYS 4 #define WEP_KEY_LEN 13 struct ieee80211_security { u16 active_key:2, enabled:1, auth_mode:2, auth_algo:4, unicast_uses_group:1; u8 key_sizes[WEP_KEYS]; u8 keys[WEP_KEYS][WEP_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 */ struct ieee80211_header_data { u16 frame_ctl; u16 duration_id; u8 addr1[6]; u8 addr2[6]; u8 addr3[6]; u16 seq_ctrl; }; #define BEACON_PROBE_SSID_ID_POSITION 12 /* Management Frame Information Element Types */ #define MFIE_TYPE_SSID 0 #define MFIE_TYPE_RATES 1 #define MFIE_TYPE_FH_SET 2 #define MFIE_TYPE_DS_SET 3 #define MFIE_TYPE_CF_SET 4 #define MFIE_TYPE_TIM 5 #define MFIE_TYPE_IBSS_SET 6 #define MFIE_TYPE_CHALLENGE 16 #define MFIE_TYPE_RSN 48 #define MFIE_TYPE_RATES_EX 50 #define MFIE_TYPE_GENERIC 221 struct ieee80211_info_element_hdr { u8 id; u8 len; } __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_authentication { struct ieee80211_header_data header; u16 algorithm; u16 transaction; u16 status; struct ieee80211_info_element info_element; } __attribute__ ((packed)); struct ieee80211_probe_response { struct ieee80211_header_data header; u32 time_stamp[2]; u16 beacon_interval; u16 capability; struct ieee80211_info_element info_element; } __attribute__ ((packed)); struct ieee80211_assoc_request_frame { u16 capability; u16 listen_interval; u8 current_ap[ETH_ALEN]; struct ieee80211_info_element info_element; } __attribute__ ((packed)); struct ieee80211_assoc_response_frame { struct ieee80211_hdr_3addr header; u16 capability; u16 status; u16 aid; struct ieee80211_info_element info_element; /* supported rates */ } __attribute__ ((packed)); struct ieee80211_txb { u8 nr_frags; u8 encrypted; u16 reserved; u16 frag_size; u16 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) 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; /* 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; u8 flags; u32 last_associate; u32 time_stamp[2]; u16 beacon_interval; u16 listen_interval; u16 atim_window; 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 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 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] extern inline int is_broadcast_ether_addr(const u8 *addr) { return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && \ (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff)); } #define CFG_IEEE80211_RESERVE_FCS (1<<0) #define CFG_IEEE80211_COMPUTE_FCS (1<<1) struct ieee80211_device { struct net_device *dev; /* Bookkeeping structures */ struct net_device_stats stats; struct ieee80211_stats ieee_stats; /* 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_*) */ 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_decrypt; int ieee802_1x; /* is IEEE 802.1X used */ /* WPA data */ int wpa_enabled; int drop_unencrypted; int tkip_countermeasures; 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 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 */ /* 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_ture; /* ABG flag */ /* 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 (*reset_port)(struct net_device *dev); /* 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) extern inline void *ieee80211_priv(struct net_device *dev) { return ((struct ieee80211_device *)netdev_priv(dev))->priv; } extern 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; } extern 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; } extern inline int ieee80211_get_hdrlen(u16 fc) { int hdrlen = 24; switch (WLAN_FC_GET_TYPE(fc)) { case IEEE80211_FTYPE_DATA: if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) hdrlen = 30; /* Addr4 */ break; case IEEE80211_FTYPE_CTL: switch (WLAN_FC_GET_STYPE(fc)) { case IEEE80211_STYPE_CTS: case IEEE80211_STYPE_ACK: hdrlen = 10; break; default: hdrlen = 16; break; } break; } return hdrlen; } /* 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 *); /* ieee80211_rx.c */ extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, struct ieee80211_rx_stats *rx_stats); extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, struct ieee80211_hdr *header, struct ieee80211_rx_stats *stats); /* iee80211_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 inline void ieee80211_increment_scans(struct ieee80211_device *ieee) { ieee->scans++; } extern inline int ieee80211_get_scans(struct ieee80211_device *ieee) { return ieee->scans; } static inline const char *escape_essid(const char *essid, u8 essid_len) { static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; const char *s = essid; char *d = escaped; if (ieee80211_is_empty_essid(essid, essid_len)) { memcpy(escaped, "", sizeof("")); return escaped; } essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE); while (essid_len--) { if (*s == '\0') { *d++ = '\\'; *d++ = '0'; s++; } else { *d++ = *s++; } } *d = '\0'; return escaped; } #endif /* IEEE80211_H */