/* SPDX-License-Identifier: GPL-2.0-only */
/*
* 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
* < j @ w1 . fi >
* Copyright ( c ) 2002 - 2003 , Jouni Malinen < j @ w1 . fi >
*
* Adaption to a generic IEEE 802 . 11 stack by James Ketrenos
* < jketreno @ linux . intel . com >
* Copyright ( c ) 2004 - 2005 , Intel Corporation
*
* API Version History
* 1 . 0 . x - - Initial version
* 1 . 1 . x - - Added radiotap , QoS , TIM , libipw_geo APIs ,
* various structure changes , and crypto API init method
*/
#ifndef LIBIPW_H
#define LIBIPW_H
#include <linux/if_ether.h> /* ETH_ALEN */
#include <linux/kernel.h> /* ARRAY_SIZE */
#include <linux/wireless.h>
#include <linux/ieee80211.h>
#include <net/cfg80211.h>
#define LIBIPW_VERSION "git-1.1.13"
#define LIBIPW_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 LIBIPW_1ADDR_LEN 10
#define LIBIPW_2ADDR_LEN 16
#define LIBIPW_3ADDR_LEN 24
#define LIBIPW_4ADDR_LEN 30
#define LIBIPW_FCS_LEN 4
#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN)
#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN)
#define MIN_FRAG_THRESHOLD 256 U
#define MAX_FRAG_THRESHOLD 2346 U
/* QOS control */
#define LIBIPW_QCTL_TID 0 x000F
/* debug macros */
#ifdef CONFIG_LIBIPW_DEBUG
extern u32 libipw_debug_level;
#define LIBIPW_DEBUG(level, fmt, args...) \
do { if (libipw_debug_level & (level)) \
printk(KERN_DEBUG "libipw: %s " fmt, __func__ , ## args); } while (0 )
#else
#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0 )
#endif /* CONFIG_LIBIPW_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 LIBIPW_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 LIBIPW_xxxx_DEBUG ( ) macro definition for your
* classification , or use LIBIPW_DEBUG ( LIBIPW_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 libipw_debug_level array .
*
* If you do not see debug_level in / proc / net / ieee80211 then you do not have
* CONFIG_LIBIPW_DEBUG defined in your kernel configuration
*
*/
#define LIBIPW_DL_INFO (1 <<0 )
#define LIBIPW_DL_WX (1 <<1 )
#define LIBIPW_DL_SCAN (1 <<2 )
#define LIBIPW_DL_STATE (1 <<3 )
#define LIBIPW_DL_MGMT (1 <<4 )
#define LIBIPW_DL_FRAG (1 <<5 )
#define LIBIPW_DL_DROP (1 <<7 )
#define LIBIPW_DL_TX (1 <<8 )
#define LIBIPW_DL_RX (1 <<9 )
#define LIBIPW_DL_QOS (1 <<31 )
#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a)
#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a)
#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a)
#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a)
#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a)
#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a)
#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a)
#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a)
#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a)
#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a)
#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a)
#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a)
#include <linux/netdevice.h>
#include <linux/if_arp.h> /* ARPHRD_ETHER */
#ifndef WIRELESS_SPY
#define WIRELESS_SPY /* enable iwspy support */
#endif
#include <net/iw_handler.h> /* new driver API */
#define ETH_P_PREAUTH 0 x88C7 /* 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 libipw_snap_hdr {
u8 dsap; /* always 0xAA */
u8 ssap; /* always 0xAA */
u8 ctrl; /* always 0x03 */
u8 oui[P80211_OUI_LEN]; /* organizational universal id */
} __packed;
#define SNAP_SIZE sizeof (struct libipw_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) >> 4 )
#define LIBIPW_STATMASK_SIGNAL (1 <<0 )
#define LIBIPW_STATMASK_RSSI (1 <<1 )
#define LIBIPW_STATMASK_NOISE (1 <<2 )
#define LIBIPW_STATMASK_RATE (1 <<3 )
#define LIBIPW_STATMASK_WEMASK 0 x7
#define LIBIPW_CCK_MODULATION (1 <<0 )
#define LIBIPW_OFDM_MODULATION (1 <<1 )
#define LIBIPW_24GHZ_BAND (1 <<0 )
#define LIBIPW_52GHZ_BAND (1 <<1 )
#define LIBIPW_CCK_RATE_1MB 0 x02
#define LIBIPW_CCK_RATE_2MB 0 x04
#define LIBIPW_CCK_RATE_5MB 0 x0B
#define LIBIPW_CCK_RATE_11MB 0 x16
#define LIBIPW_OFDM_RATE_6MB 0 x0C
#define LIBIPW_OFDM_RATE_9MB 0 x12
#define LIBIPW_OFDM_RATE_12MB 0 x18
#define LIBIPW_OFDM_RATE_18MB 0 x24
#define LIBIPW_OFDM_RATE_24MB 0 x30
#define LIBIPW_OFDM_RATE_36MB 0 x48
#define LIBIPW_OFDM_RATE_48MB 0 x60
#define LIBIPW_OFDM_RATE_54MB 0 x6C
#define LIBIPW_BASIC_RATE_MASK 0 x80
#define LIBIPW_CCK_RATE_1MB_MASK (1 <<0 )
#define LIBIPW_CCK_RATE_2MB_MASK (1 <<1 )
#define LIBIPW_CCK_RATE_5MB_MASK (1 <<2 )
#define LIBIPW_CCK_RATE_11MB_MASK (1 <<3 )
#define LIBIPW_OFDM_RATE_6MB_MASK (1 <<4 )
#define LIBIPW_OFDM_RATE_9MB_MASK (1 <<5 )
#define LIBIPW_OFDM_RATE_12MB_MASK (1 <<6 )
#define LIBIPW_OFDM_RATE_18MB_MASK (1 <<7 )
#define LIBIPW_OFDM_RATE_24MB_MASK (1 <<8 )
#define LIBIPW_OFDM_RATE_36MB_MASK (1 <<9 )
#define LIBIPW_OFDM_RATE_48MB_MASK (1 <<10 )
#define LIBIPW_OFDM_RATE_54MB_MASK (1 <<11 )
#define LIBIPW_CCK_RATES_MASK 0 x0000000F
#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \
LIBIPW_CCK_RATE_2MB_MASK)
#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \
LIBIPW_CCK_RATE_5MB_MASK | \
LIBIPW_CCK_RATE_11MB_MASK)
#define LIBIPW_OFDM_RATES_MASK 0 x00000FF0
#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \
LIBIPW_OFDM_RATE_12MB_MASK | \
LIBIPW_OFDM_RATE_24MB_MASK)
#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \
LIBIPW_OFDM_RATE_9MB_MASK | \
LIBIPW_OFDM_RATE_18MB_MASK | \
LIBIPW_OFDM_RATE_36MB_MASK | \
LIBIPW_OFDM_RATE_48MB_MASK | \
LIBIPW_OFDM_RATE_54MB_MASK)
#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \
LIBIPW_CCK_DEFAULT_RATES_MASK)
#define LIBIPW_NUM_OFDM_RATES 8
#define LIBIPW_NUM_CCK_RATES 4
#define LIBIPW_OFDM_SHIFT_MASK_A 4
/* NOTE: This data is for statistical purposes; not all hardware provides this
* information for frames received .
* For libipw_rx_mgt , you need to set at least the ' len ' parameter .
*/
struct libipw_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 LIBIPW_FRAG_CACHE_LEN 4
struct libipw_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 libipw_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 libipw_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_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 libipw_security {
u16 active_key:2 , enabled:1 , unicast_uses_group:1 , encrypt:1 ;
u8 auth_mode;
u8 encode_alg[WEP_KEYS];
u8 key_sizes[WEP_KEYS];
u8 keys[WEP_KEYS][SCM_KEY_LEN];
u8 level;
u16 flags;
} __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
struct libipw_hdr_1addr {
__le16 frame_ctl;
__le16 duration_id;
u8 addr1[ETH_ALEN];
u8 payload[];
} __packed;
struct libipw_hdr_2addr {
__le16 frame_ctl;
__le16 duration_id;
u8 addr1[ETH_ALEN];
u8 addr2[ETH_ALEN];
u8 payload[];
} __packed;
struct libipw_hdr_3addr {
/* New members MUST be added within the __struct_group() macro below. */
__struct_group(libipw_hdr_3addr_hdr, hdr, __packed,
__le16 frame_ctl;
__le16 duration_id;
u8 addr1[ETH_ALEN];
u8 addr2[ETH_ALEN];
u8 addr3[ETH_ALEN];
__le16 seq_ctl;
);
u8 payload[];
} __packed;
static_assert(offsetof(struct libipw_hdr_3addr, payload) == sizeof (struct libipw_hdr_3addr_hdr),
"struct member likely outside of __struct_group()" );
struct libipw_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[];
} __packed;
struct libipw_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;
} __packed;
struct libipw_info_element {
u8 id;
u8 len;
u8 data[];
} __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 ;
} _ _ packed ;
u32 time_stamp [ 2 ] ;
u16 reason ;
u16 status ;
*/
struct libipw_auth {
struct libipw_hdr_3addr_hdr header;
__le16 algorithm;
__le16 transaction;
__le16 status;
/* challenge */
u8 variable[];
} __packed;
struct libipw_channel_switch {
u8 id;
u8 len;
u8 mode;
u8 channel;
u8 count;
} __packed;
struct libipw_action {
struct libipw_hdr_3addr_hdr header;
u8 category;
u8 action;
union {
struct libipw_action_exchange {
u8 token;
} exchange;
struct libipw_channel_switch channel_switch;
} format;
} __packed;
struct libipw_disassoc {
struct libipw_hdr_3addr_hdr header;
__le16 reason;
} __packed;
/* Alias deauth for disassoc */
#define libipw_deauth libipw_disassoc
struct libipw_probe_request {
struct libipw_hdr_3addr_hdr header;
/* SSID, supported rates */
u8 variable[];
} __packed;
struct libipw_probe_response {
struct libipw_hdr_3addr_hdr header;
__le32 time_stamp[2 ];
__le16 beacon_interval;
__le16 capability;
/* SSID, supported rates, FH params, DS params,
* CF params, IBSS params, TIM (if beacon), RSN */
u8 variable[];
} __packed;
/* Alias beacon for probe_response */
#define libipw_beacon libipw_probe_response
struct libipw_reassoc_request {
struct libipw_hdr_3addr_hdr header;
__le16 capability;
__le16 listen_interval;
u8 current_ap[ETH_ALEN];
u8 variable[];
} __packed;
struct libipw_assoc_response {
struct libipw_hdr_3addr_hdr header;
__le16 capability;
__le16 status;
__le16 aid;
/* supported rates */
u8 variable[];
} __packed;
struct libipw_txb {
u8 nr_frags;
u8 encrypted;
u8 rts_included;
u8 reserved;
u16 frag_size;
u16 payload_size;
struct sk_buff *fragments[] __counted_by(nr_frags);
};
/* 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 4 U
#define MAX_WPA_IE_LEN 64
#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 NETWORK_HAS_ERP_VALUE (1 <<10 )
#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 libipw_qos_information_element {
u8 elementID;
u8 length;
u8 qui[QOS_OUI_LEN];
u8 qui_type;
u8 qui_subtype;
u8 version;
u8 ac_info;
} __packed;
struct libipw_qos_ac_parameter {
u8 aci_aifsn;
u8 ecw_min_max;
__le16 tx_op_limit;
} __packed;
struct libipw_qos_parameter_info {
struct libipw_qos_information_element info_element;
u8 reserved;
struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
} __packed;
struct libipw_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];
} __packed;
struct libipw_qos_data {
struct libipw_qos_parameters parameters;
int active;
int supported;
u8 param_count;
u8 old_param_count;
};
struct libipw_tim_parameters {
u8 tim_count;
u8 tim_period;
} __packed;
/*******************************************************/
struct libipw_tpc_report {
u8 transmit_power;
u8 link_margin;
} __packed;
struct libipw_channel_map {
u8 channel;
u8 map;
} __packed;
struct libipw_csa {
u8 mode;
u8 channel;
u8 count;
} __packed;
struct libipw_quiet {
u8 count;
u8 period;
u8 duration;
u8 offset;
} __packed;
struct libipw_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 libipw_qos_data qos_data;
/* These are network statistics */
struct libipw_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 libipw_tim_parameters tim;
/* 802.11h info */
/* Power Constraint - mandatory if spctrm mgmt required */
u8 power_constraint;
/* TPC Report - mandatory if spctrm mgmt required */
struct libipw_tpc_report tpc_report;
/* Channel Switch Announcement - optional if spctrm mgmt required */
struct libipw_csa csa;
/* Quiet - optional if spctrm mgmt required */
struct libipw_quiet quiet;
struct list_head list;
};
enum libipw_state {
LIBIPW_UNINITIALIZED = 0 ,
LIBIPW_INITIALIZED,
LIBIPW_ASSOCIATING,
LIBIPW_ASSOCIATED,
LIBIPW_AUTHENTICATING,
LIBIPW_AUTHENTICATED,
LIBIPW_SHUTDOWN
};
#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
#define DEFAULT_FTS 2346
#define CFG_LIBIPW_RESERVE_FCS (1 <<0 )
#define CFG_LIBIPW_COMPUTE_FCS (1 <<1 )
#define CFG_LIBIPW_RTS (1 <<2 )
#define LIBIPW_24GHZ_MIN_CHANNEL 1
#define LIBIPW_24GHZ_MAX_CHANNEL 14
#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \
LIBIPW_24GHZ_MIN_CHANNEL + 1 )
#define LIBIPW_52GHZ_MIN_CHANNEL 34
#define LIBIPW_52GHZ_MAX_CHANNEL 165
#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \
LIBIPW_52GHZ_MIN_CHANNEL + 1 )
enum {
LIBIPW_CH_PASSIVE_ONLY = (1 << 0 ),
LIBIPW_CH_80211H_RULES = (1 << 1 ),
LIBIPW_CH_B_ONLY = (1 << 2 ),
LIBIPW_CH_NO_IBSS = (1 << 3 ),
LIBIPW_CH_UNIFORM_SPREADING = (1 << 4 ),
LIBIPW_CH_RADAR_DETECT = (1 << 5 ),
LIBIPW_CH_INVALID = (1 << 6 ),
};
struct libipw_channel {
u32 freq; /* in MHz */
u8 channel;
u8 flags;
u8 max_power; /* in dBm */
};
struct libipw_geo {
u8 name[4 ];
u8 bg_channels;
u8 a_channels;
struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS];
struct libipw_channel a[LIBIPW_52GHZ_CHANNELS];
};
#define NUM_WEP_KEYS 4
enum {
IEEE80211_CRYPTO_TKIP_COUNTERMEASURES = (1 << 0 ),
};
struct module;
struct libipw_crypto_ops {
const char *name;
struct list_head list;
/* init new crypto context (e.g., allocate private data space,
* select IV , etc . ) ; returns NULL on failure or pointer to allocated
* private data on success */
void *(*init) (int keyidx);
/* deinitialize crypto context and free allocated private data */
void (*deinit) (void *priv);
/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
* value from decrypt_mpdu is passed as the keyidx value for
* decrypt_msdu . skb must have enough head and tail room for the
* encryption ; if not , error will be returned ; these functions are
* called for all MPDUs ( i . e . , fragments ) .
*/
int (*encrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
int (*decrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
/* These functions are called for full MSDUs, i.e. full frames.
* These can be NULL if full MSDU operations are not needed. */
int (*encrypt_msdu) (struct sk_buff * skb, int hdr_len, void *priv);
int (*decrypt_msdu) (struct sk_buff * skb, int keyidx, int hdr_len,
void *priv);
int (*set_key) (void *key, int len, u8 * seq, void *priv);
int (*get_key) (void *key, int len, u8 * seq, void *priv);
/* procfs handler for printing out key information and possible
* statistics */
void (*print_stats) (struct seq_file *m, void *priv);
/* Crypto specific flag get/set for configuration settings */
unsigned long (*get_flags) (void *priv);
unsigned long (*set_flags) (unsigned long flags, void *priv);
/* maximum number of bytes added by encryption; encrypt buf is
* allocated with extra_prefix_len bytes , copy of in_buf , and
* extra_postfix_len ; encrypt need not use all this space , but
* the result must start at the beginning of the buffer and correct
* length must be returned */
int extra_mpdu_prefix_len, extra_mpdu_postfix_len;
int extra_msdu_prefix_len, extra_msdu_postfix_len;
struct module *owner;
};
struct libipw_crypt_info {
char *name;
/* Most clients will already have a lock,
so just point to that. */
spinlock_t *lock;
struct libipw_crypt_data *crypt[NUM_WEP_KEYS];
int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
struct list_head crypt_deinit_list;
struct timer_list crypt_deinit_timer;
int crypt_quiesced;
};
struct libipw_device {
struct net_device *dev;
struct wireless_dev wdev;
struct libipw_security sec;
/* Bookkeeping structures */
struct libipw_stats ieee_stats;
struct libipw_geo geo;
struct ieee80211_supported_band bg_band;
struct ieee80211_supported_band a_band;
/* Probe / Beacon management */
struct list_head network_free_list;
struct list_head network_list;
struct libipw_network *networks[MAX_NETWORK_COUNT];
int scans;
int scan_age;
int iw_mode; /* operating mode (IW_MODE_*) */
struct iw_spy_data spy_data; /* iwspy support */
bool spy_enabled;
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 */
/* 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;
/* host should strip IV and ICV from protected frames */
/* meaningful only when hardware decryption is being used */
int host_strip_iv_icv;
int host_open_frag;
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 libipw_crypt_info crypt_info;
int bcrx_sta_key; /* use individual keys to override default keys even
* with RX of broad/multicast frames */
/* Fragmentation structures */
struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN];
unsigned int frag_next_idx;
u16 fts; /* Fragmentation Threshold */
u16 rts; /* RTS threshold */
/* Association info */
u8 bssid[ETH_ALEN];
enum libipw_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;
u16 prev_seq_ctl; /* used to drop duplicate frames */
/* Callback functions */
void (*set_security) (struct net_device * dev,
struct libipw_security * sec);
netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb,
struct net_device * dev, int pri);
int (*is_queue_full) (struct net_device * dev, int pri);
int (*handle_management) (struct net_device * dev,
struct libipw_network * network, u16 type);
int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
/* Typical STA methods */
int (*handle_auth) (struct net_device * dev,
struct libipw_auth * auth);
int (*handle_deauth) (struct net_device * dev,
struct libipw_deauth * auth);
int (*handle_action) (struct net_device * dev,
struct libipw_action * action,
struct libipw_rx_stats * stats);
int (*handle_disassoc) (struct net_device * dev,
struct libipw_disassoc * assoc);
int (*handle_beacon) (struct net_device * dev,
struct libipw_beacon * beacon,
struct libipw_network * network);
int (*handle_probe_response) (struct net_device * dev,
struct libipw_probe_response * resp,
struct libipw_network * network);
int (*handle_probe_request) (struct net_device * dev,
struct libipw_probe_request * req,
struct libipw_rx_stats * stats);
int (*handle_assoc_response) (struct net_device * dev,
struct libipw_assoc_response * resp,
struct libipw_network * network);
/* Typical AP methods */
int (*handle_assoc_request) (struct net_device * dev);
int (*handle_reassoc_request) (struct net_device * dev,
struct libipw_reassoc_request * req);
/* This must be the last item so that it points to the data
* allocated beyond this structure by alloc_libipw */
u8 priv[];
};
#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 *libipw_priv(struct net_device *dev)
{
return ((struct libipw_device *)netdev_priv(dev))->priv;
}
static inline int libipw_is_valid_mode(struct libipw_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 & LIBIPW_OFDM_MODULATION) &&
(ieee->freq_band & LIBIPW_52GHZ_BAND))
return 1 ;
if ((mode & IEEE_G) &&
(ieee->modulation & LIBIPW_OFDM_MODULATION) &&
(ieee->freq_band & LIBIPW_24GHZ_BAND))
return 1 ;
if ((mode & IEEE_B) &&
(ieee->modulation & LIBIPW_CCK_MODULATION) &&
(ieee->freq_band & LIBIPW_24GHZ_BAND))
return 1 ;
return 0 ;
}
static inline int libipw_get_hdrlen(u16 fc)
{
int hdrlen = LIBIPW_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 = LIBIPW_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 = LIBIPW_1ADDR_LEN;
break ;
default :
hdrlen = LIBIPW_2ADDR_LEN;
break ;
}
break ;
}
return hdrlen;
}
static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr)
{
switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
case LIBIPW_1ADDR_LEN:
return ((struct libipw_hdr_1addr *)hdr)->payload;
case LIBIPW_2ADDR_LEN:
return ((struct libipw_hdr_2addr *)hdr)->payload;
case LIBIPW_3ADDR_LEN:
return ((struct libipw_hdr_3addr *)hdr)->payload;
case LIBIPW_4ADDR_LEN:
return ((struct libipw_hdr_4addr *)hdr)->payload;
}
return NULL;
}
static inline int libipw_is_ofdm_rate(u8 rate)
{
switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
case LIBIPW_OFDM_RATE_6MB:
case LIBIPW_OFDM_RATE_9MB:
case LIBIPW_OFDM_RATE_12MB:
case LIBIPW_OFDM_RATE_18MB:
case LIBIPW_OFDM_RATE_24MB:
case LIBIPW_OFDM_RATE_36MB:
case LIBIPW_OFDM_RATE_48MB:
case LIBIPW_OFDM_RATE_54MB:
return 1 ;
}
return 0 ;
}
static inline int libipw_is_cck_rate(u8 rate)
{
switch (rate & ~LIBIPW_BASIC_RATE_MASK) {
case LIBIPW_CCK_RATE_1MB:
case LIBIPW_CCK_RATE_2MB:
case LIBIPW_CCK_RATE_5MB:
case LIBIPW_CCK_RATE_11MB:
return 1 ;
}
return 0 ;
}
/* libipw.c */
void free_libipw(struct net_device *dev, int monitor);
struct net_device *alloc_libipw(int sizeof_priv, int monitor);
void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs);
int libipw_set_encryption(struct libipw_device *ieee);
/* libipw_tx.c */
netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev);
void libipw_txb_free(struct libipw_txb *);
/* libipw_rx.c */
int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
struct libipw_rx_stats *rx_stats);
/* make sure to set stats->len */
void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header,
struct libipw_rx_stats *stats);
/* libipw_geo.c */
const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee);
void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo);
int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel);
int libipw_channel_to_index(struct libipw_device *ieee, u8 channel);
u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel);
const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee,
u8 channel);
u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel);
/* libipw_wx.c */
int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info,
union iwreq_data *wrqu, char *key);
int libipw_wx_set_encode(struct libipw_device *ieee,
struct iw_request_info *info, union iwreq_data *wrqu,
char *key);
int libipw_wx_get_encode(struct libipw_device *ieee,
struct iw_request_info *info, union iwreq_data *wrqu,
char *key);
int libipw_wx_set_encodeext(struct libipw_device *ieee,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra);
int libipw_wx_get_encodeext(struct libipw_device *ieee,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra);
static inline void libipw_increment_scans(struct libipw_device *ieee)
{
ieee->scans++;
}
static inline int libipw_get_scans(struct libipw_device *ieee)
{
return ieee->scans;
}
struct libipw_crypt_data {
struct list_head list; /* delayed deletion list */
const struct libipw_crypto_ops *ops;
void *priv;
atomic_t refcnt;
};
int libipw_crypt_info_init(struct libipw_crypt_info *info, char *name,
spinlock_t *lock);
void libipw_crypt_info_free(struct libipw_crypt_info *info);
int libipw_register_crypto_ops(const struct libipw_crypto_ops *ops);
int libipw_unregister_crypto_ops(const struct libipw_crypto_ops *ops);
const struct libipw_crypto_ops *libipw_get_crypto_ops(const char *name);
void libipw_crypt_delayed_deinit(struct libipw_crypt_info *info,
struct libipw_crypt_data **crypt);
/* must be called in the listed order */
int libipw_crypto_init(void );
int libipw_crypto_ccmp_init(void );
int libipw_crypto_tkip_init(void );
int libipw_crypto_wep_init(void );
void libipw_crypto_wep_exit(void );
void libipw_crypto_tkip_exit(void );
void libipw_crypto_ccmp_exit(void );
void libipw_crypto_exit(void );
int ipw_wx_set_spy(struct net_device *dev, struct iw_request_info *info,
union iwreq_data *wrqu, char *extra);
int ipw_wx_get_spy(struct net_device *dev, struct iw_request_info *info,
union iwreq_data *wrqu, char *extra);
int ipw_wx_set_thrspy(struct net_device *dev, struct iw_request_info *info,
union iwreq_data *wrqu, char *extra);
int ipw_wx_get_thrspy(struct net_device *dev, struct iw_request_info *info,
union iwreq_data *wrqu, char *extra);
void libipw_spy_update(struct net_device *dev, unsigned char *address,
struct iw_quality *wstats);
#endif /* LIBIPW_H */
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