/* * mac80211 <-> driver interface * * Copyright 2002-2005, Devicescape Software, Inc. * Copyright 2006-2007 Jiri Benc * Copyright 2007-2010 Johannes Berg * * 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. */ #ifndef ATBM_MAC80211_H #define ATBM_MAC80211_H #include #include #include #include #include #include #include #include #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)) #define IEEE80211_BAND_2GHZ NL80211_BAND_2GHZ #define IEEE80211_BAND_5GHZ NL80211_BAND_5GHZ #define IEEE80211_NUM_BANDS (NL80211_BAND_5GHZ+1) #define ieee80211_band nl80211_band #define atbm_notify_scan_done(__local,__scan_request,__abort) \ do { \ __local->scan_info.aborted = __abort; \ cfg80211_scan_done(__scan_request,&__local->scan_info); \ }while(0) #else struct cfg80211_scan_info{ bool aborted; }; #define atbm_notify_scan_done(__local,__scan_request,__abort) \ do { \ BUG_ON(__local==NULL); \ cfg80211_scan_done(__scan_request,__abort); \ }while(0) #endif #ifdef IPV6_FILTERING #include #endif /*IPV6_FILTERING*/ #ifndef IEEE80211_QOS_CTL_EOSP #define IEEE80211_QOS_CTL_EOSP 0x0010 #endif #ifndef IEEE80211_BAR_CTRL_MULTI_TID #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002 #endif #ifndef IEEE80211_BAR_CTRL_TID_INFO_MASK #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 #endif #ifndef IEEE80211_BAR_CTRL_TID_INFO_SHIFT #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 #endif #if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 19, 0)) #ifndef IEEE80211_RADIOTAP_F_TX_NOACK #define IEEE80211_RADIOTAP_F_TX_NOACK 0x0008 /* don't expect an ack */ #endif #endif #ifndef IEEE80211_QOS_CTL_ACK_POLICY_NOACK #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 #endif #ifndef IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 #endif #ifndef ERP_INFO_BYTE_OFFSET #define ERP_INFO_BYTE_OFFSET 2 #endif static inline unsigned atbm_compare_ether_addr(const u8 *addr1, const u8 *addr2) { const u16 *a = (const u16 *) addr1; const u16 *b = (const u16 *) addr2; BUILD_BUG_ON(ETH_ALEN != 6); return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0; } /* Information Element IDs */ enum atbm_ieee80211_eid { ATBM_WLAN_EID_SSID = 0, ATBM_WLAN_EID_SUPP_RATES = 1, ATBM_WLAN_EID_FH_PARAMS = 2, ATBM_WLAN_EID_DS_PARAMS = 3, ATBM_WLAN_EID_CF_PARAMS = 4, ATBM_WLAN_EID_TIM = 5, ATBM_WLAN_EID_IBSS_PARAMS = 6, ATBM_WLAN_EID_CHALLENGE = 16, ATBM_WLAN_EID_COUNTRY = 7, ATBM_WLAN_EID_HP_PARAMS = 8, ATBM_WLAN_EID_HP_TABLE = 9, ATBM_WLAN_EID_REQUEST = 10, ATBM_WLAN_EID_QBSS_LOAD = 11, ATBM_WLAN_EID_EDCA_PARAM_SET = 12, ATBM_WLAN_EID_TSPEC = 13, ATBM_WLAN_EID_TCLAS = 14, ATBM_WLAN_EID_SCHEDULE = 15, ATBM_WLAN_EID_TS_DELAY = 43, ATBM_WLAN_EID_TCLAS_PROCESSING = 44, ATBM_WLAN_EID_QOS_CAPA = 46, /* 802.11z */ ATBM_WLAN_EID_LINK_ID = 101, /* 802.11s */ ATBM_WLAN_EID_MESH_CONFIG = 113, ATBM_WLAN_EID_MESH_ID = 114, ATBM_WLAN_EID_LINK_METRIC_REPORT = 115, ATBM_WLAN_EID_CONGESTION_NOTIFICATION = 116, ATBM_WLAN_EID_PEER_MGMT = 117, ATBM_WLAN_EID_CHAN_SWITCH_PARAM = 118, ATBM_WLAN_EID_MESH_AWAKE_WINDOW = 119, ATBM_WLAN_EID_BEACON_TIMING = 120, ATBM_WLAN_EID_MCCAOP_SETUP_REQ = 121, ATBM_WLAN_EID_MCCAOP_SETUP_RESP = 122, ATBM_WLAN_EID_MCCAOP_ADVERT = 123, ATBM_WLAN_EID_MCCAOP_TEARDOWN = 124, ATBM_WLAN_EID_GANN = 125, ATBM_WLAN_EID_RANN = 126, ATBM_WLAN_EID_PREQ = 130, ATBM_WLAN_EID_PREP = 131, ATBM_WLAN_EID_PERR = 132, ATBM_WLAN_EID_PXU = 137, ATBM_WLAN_EID_PXUC = 138, ATBM_WLAN_EID_AUTH_MESH_PEER_EXCH = 139, ATBM_WLAN_EID_MIC = 140, ATBM_WLAN_EID_PWR_CONSTRAINT = 32, ATBM_WLAN_EID_PWR_CAPABILITY = 33, ATBM_WLAN_EID_TPC_REQUEST = 34, ATBM_WLAN_EID_TPC_REPORT = 35, ATBM_WLAN_EID_SUPPORTED_CHANNELS = 36, ATBM_WLAN_EID_CHANNEL_SWITCH = 37, ATBM_WLAN_EID_MEASURE_REQUEST = 38, ATBM_WLAN_EID_MEASURE_REPORT = 39, ATBM_WLAN_EID_QUIET = 40, ATBM_WLAN_EID_IBSS_DFS = 41, ATBM_WLAN_EID_ERP_INFO = 42, ATBM_WLAN_EID_EXT_SUPP_RATES = 50, ATBM_WLAN_EID_HT_CAPABILITY = 45, ATBM_WLAN_EID_HT_INFORMATION = 61, ATBM_WLAN_EID_RSN = 48, ATBM_WLAN_EID_MMIE = 76, ATBM_WLAN_EID_WPA = 221, ATBM_WLAN_EID_GENERIC = 221, ATBM_WLAN_EID_VENDOR_SPECIFIC = 221, ATBM_WLAN_EID_QOS_PARAMETER = 222, ATBM_WLAN_EID_AP_CHAN_REPORT = 51, ATBM_WLAN_EID_NEIGHBOR_REPORT = 52, ATBM_WLAN_EID_RCPI = 53, ATBM_WLAN_EID_BSS_AVG_ACCESS_DELAY = 63, ATBM_WLAN_EID_ANTENNA_INFO = 64, ATBM_WLAN_EID_RSNI = 65, ATBM_WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66, ATBM_WLAN_EID_BSS_AVAILABLE_CAPACITY = 67, ATBM_WLAN_EID_BSS_AC_ACCESS_DELAY = 68, ATBM_WLAN_EID_RRM_ENABLED_CAPABILITIES = 70, ATBM_WLAN_EID_MULTIPLE_BSSID = 71, ATBM_WLAN_EID_BSS_COEX_2040 = 72, ATBM_WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74, ATBM_WLAN_EID_EXT_CAPABILITY = 127, ATBM_WLAN_EID_MOBILITY_DOMAIN = 54, ATBM_WLAN_EID_FAST_BSS_TRANSITION = 55, ATBM_WLAN_EID_TIMEOUT_INTERVAL = 56, ATBM_WLAN_EID_RIC_DATA = 57, ATBM_WLAN_EID_RIC_DESCRIPTOR = 75, ATBM_WLAN_EID_DSE_REGISTERED_LOCATION = 58, ATBM_WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59, ATBM_WLAN_EID_EXT_CHANSWITCH_ANN = 60, ATBM_WLAN_EID_SECONDARY_CH_OFFSET = 62, ATBM_WLAN_EID_PRIVATE = 233, }; struct atbm_wpa_ie_data { int proto; int pairwise_cipher; int group_cipher; int key_mgmt; int wpa_capabilities; int rsn_capabilities; size_t num_pmkid; const u8 *pmkid; int mgmt_group_cipher; }; #define ATBM_WLAN_CAPABILITY_ESS BIT(0) #define ATBM_WLAN_CAPABILITY_IBSS BIT(1) #define ATBM_WLAN_CAPABILITY_CF_POLLABLE BIT(2) #define ATBM_WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3) #define ATBM_WLAN_CAPABILITY_PRIVACY BIT(4) #define ATBM_WLAN_CAPABILITY_SHORT_PREAMBLE BIT(5) #define ATBM_WLAN_CAPABILITY_PBCC BIT(6) #define ATBM_WLAN_CAPABILITY_CHANNEL_AGILITY BIT(7) #define ATBM_WLAN_CAPABILITY_SPECTRUM_MGMT BIT(8) #define ATBM_WLAN_CAPABILITY_SHORT_SLOT_TIME BIT(10) #define ATBM_WLAN_CAPABILITY_DSSS_OFDM BIT(13) /* IEEE 802.11, 7.3.2.25.3 RSN Capabilities */ #define ATBM_WPA_CAPABILITY_PREAUTH BIT(0) #define ATBM_WPA_CAPABILITY_NO_PAIRWISE BIT(1) /* B2-B3: PTKSA Replay Counter */ /* B4-B5: GTKSA Replay Counter */ #define ATBM_WPA_CAPABILITY_MFPR BIT(6) #define ATBM_WPA_CAPABILITY_MFPC BIT(7) /* B8: Reserved */ #define ATBM_WPA_CAPABILITY_PEERKEY_ENABLED BIT(9) #define ATBM_WPA_CAPABILITY_SPP_A_MSDU_CAPABLE BIT(10) #define ATBM_WPA_CAPABILITY_SPP_A_MSDU_REQUIRED BIT(11) #define ATBM_WPA_CAPABILITY_PBAC BIT(12) #define ATBM_WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST BIT(13) #define ATBM_WPA_PROTO_WPA BIT(0) #define ATBM_WPA_PROTO_RSN BIT(1) #define ATBM_WPA_PROTO_WAPI BIT(2) #define ATBM_WPA_CIPHER_NONE BIT(0) #define ATBM_WPA_CIPHER_WEP40 BIT(1) #define ATBM_WPA_CIPHER_WEP104 BIT(2) #define ATBM_WPA_CIPHER_TKIP BIT(3) #define ATBM_WPA_CIPHER_CCMP BIT(4) #define ATBM_WPA_CIPHER_AES_128_CMAC BIT(5) #define ATBM_WPA_CIPHER_GCMP BIT(6) #define ATBM_WPA_CIPHER_SMS4 BIT(7) #define ATBM_WPA_KEY_MGMT_IEEE8021X BIT(0) #define ATBM_WPA_KEY_MGMT_PSK BIT(1) #define ATBM_WPA_KEY_MGMT_NONE BIT(2) #define ATBM_WPA_KEY_MGMT_IEEE8021X_NO_WPA BIT(3) #define ATBM_WPA_KEY_MGMT_WPA_NONE BIT(4) #define ATBM_WPA_KEY_MGMT_FT_IEEE8021X BIT(5) #define ATBM_WPA_KEY_MGMT_FT_PSK BIT(6) #define ATBM_WPA_KEY_MGMT_IEEE8021X_SHA256 BIT(7) #define ATBM_WPA_KEY_MGMT_PSK_SHA256 BIT(8) #define ATBM_WPA_KEY_MGMT_WPS BIT(9) #define ATBM_WPA_KEY_MGMT_SAE BIT(10) #define ATBM_WPA_KEY_MGMT_FT_SAE BIT(11) #define ATBM_WPA_KEY_MGMT_WAPI_PSK BIT(12) #define ATBM_WPA_KEY_MGMT_WAPI_CERT BIT(13) #define ATBM_WPA_KEY_MGMT_CCKM BIT(14) #define ATBM_OUI_MICROSOFT 0x0050f2 /* Microsoft (also used in Wi-Fi specs)*/ #define ATBM_WMM_OUI_TYPE 2 #define ATBM_WMM_OUI_SUBTYPE_INFORMATION_ELEMENT 0 #define ATBM_WMM_OUI_SUBTYPE_PARAMETER_ELEMENT 1 #define ATBM_WMM_OUI_SUBTYPE_TSPEC_ELEMENT 2 #define ATBM_OUI_WFA 0x506f9a #define ATBM_P2P_IE_VENDOR_TYPE 0x506f9a09 #define ATBM_WFD_IE_VENDOR_TYPE 0x506f9a0a #define ATBM_WFD_OUI_TYPE 10 #define ATBM_HS20_IE_VENDOR_TYPE 0x506f9a10 #define ATBM_HS20_INDICATION_OUI_TYPE 16 #define ATBM_P2P_OUI_TYPE 9 #define ATBM_OUI_BROADCOM 0x00904c /* Broadcom (Epigram) */ #define ATBM_WPA_SELECTOR_LEN 4 #define ATBM_WPA_VERSION 1 #define ATBM_RSN_SELECTOR_LEN 4 #define ATBM_RSN_VERSION 1 static inline u32 ATBM_WPA_GET_BE24(const u8 *a) { return (a[0] << 16) | (a[1] << 8) | a[2]; } static inline u32 ATBM_WPA_GET_BE32(const u8 *a) { return (a[0] << 24) | (a[1] << 16) | (a[2] << 8) | a[3]; } static inline u16 ATBM_WPA_GET_LE16(const u8 *a) { return (a[1] << 8) | a[0]; } #define ATBM_RSN_CIPHER_SUITE_NONE 0x000fac00 #define ATBM_RSN_CIPHER_SUITE_WEP40 0x000fac01 #define ATBM_RSN_CIPHER_SUITE_TKIP 0x000fac02 #define ATBM_RSN_CIPHER_SUITE_CCMP 0x000fac04 #define ATBM_RSN_CIPHER_SUITE_WEP104 0x000fac05 #define ATBM_RSN_CIPHER_SUITE_AES_128_CMAC 0x000fac06 #define ATBM_RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED 0x000fac07 #define ATBM_RSN_CIPHER_SUITE_GCMP 0x000fac08 #define ATBM_RSN_AUTH_KEY_MGMT_UNSPEC_802_1X 0x000fac01 #define ATBM_RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X 0x000fac02 #define ATBM_RSN_AUTH_KEY_MGMT_FT_802_1X 0x000fac03 #define ATBM_RSN_AUTH_KEY_MGMT_FT_PSK 0x000fac04 #define ATBM_RSN_AUTH_KEY_MGMT_802_1X_SHA256 0x000fac05 #define ATBM_RSN_AUTH_KEY_MGMT_PSK_SHA256 0x000fac06 #define ATBM_RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE 0x000fac07 #define ATBM_RSN_AUTH_KEY_MGMT_SAE 0x000fac08 #define ATBM_RSN_AUTH_KEY_MGMT_FT_SAE 0x000fac09 #define ATBM_RSN_AUTH_KEY_MGMT_CCKM 0x00409600 /* AKM suite selectors */ #define ATBM_WLAN_AKM_SUITE_8021X 0x000FAC01 #define ATBM_WLAN_AKM_SUITE_PSK 0x000FAC02 #define ATBM_WLAN_AKM_SUITE_8021X_SHA256 0x000FAC05 #define ATBM_WLAN_AKM_SUITE_PSK_SHA256 0x000FAC06 #define ATBM_WLAN_AKM_SUITE_TDLS 0x000FAC07 #define ATBM_WLAN_AKM_SUITE_SAE 0x000FAC08 #define ATBM_WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09 #define ATBM_WLAN_AKM_SUITE_802_1X_SUITE_B_192 0x000fac12 #define ATBM_WLAN_AKM_SUITE_FILS_SHA256 0x000fac14 #define ATBM_WLAN_AKM_SUITE_FILS_SHA384 0x000fac15 #define ATBM_WLAN_AKM_SUITE_FT_FILS_SHA256 0x000fac16 #define ATBM_WLAN_AKM_SUITE_FT_FILS_SHA384 0x000fac17 #define ATBM_PMKID_LEN 16 #define ATBM_PMK_LEN 32 #define ATBM_WPA_REPLAY_COUNTER_LEN 8 #define ATBM_WPA_NONCE_LEN 32 #define ATBM_WPA_KEY_RSC_LEN 8 #define ATBM_WPA_GMK_LEN 32 #define ATBM_WPA_GTK_MAX_LEN 32 #define ATBM_WPA_AUTH_KEY_MGMT_NONE 0x0050f200 #define ATBM_WPA_AUTH_KEY_MGMT_UNSPEC_802_1X 0x0050f201 #define ATBM_WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X 0x0050f202 #define ATBM_WPA_AUTH_KEY_MGMT_CCKM 0x00409600 #define ATBM_WPA_CIPHER_SUITE_NONE 0x0050f200 #define ATBM_WPA_CIPHER_SUITE_WEP40 0x0050f201 #define ATBM_WPA_CIPHER_SUITE_TKIP 0x0050f202 #define ATBM_WPA_CIPHER_SUITE_CCMP 0x0050f204 #define ATBM_WPA_CIPHER_SUITE_WEP104 0x0050f205 #define ATBM_PRIVATE_OUI 0x4154424D enum atbm_p2p_attr_id { ATBM_P2P_ATTR_STATUS = 0, ATBM_P2P_ATTR_MINOR_REASON_CODE = 1, ATBM_P2P_ATTR_CAPABILITY = 2, ATBM_P2P_ATTR_DEVICE_ID = 3, ATBM_P2P_ATTR_GROUP_OWNER_INTENT = 4, ATBM_P2P_ATTR_CONFIGURATION_TIMEOUT = 5, ATBM_P2P_ATTR_LISTEN_CHANNEL = 6, ATBM_P2P_ATTR_GROUP_BSSID = 7, ATBM_P2P_ATTR_EXT_LISTEN_TIMING = 8, ATBM_P2P_ATTR_INTENDED_INTERFACE_ADDR = 9, ATBM_P2P_ATTR_MANAGEABILITY = 10, ATBM_P2P_ATTR_CHANNEL_LIST = 11, ATBM_P2P_ATTR_NOTICE_OF_ABSENCE = 12, ATBM_P2P_ATTR_DEVICE_INFO = 13, ATBM_P2P_ATTR_GROUP_INFO = 14, ATBM_P2P_ATTR_GROUP_ID = 15, ATBM_P2P_ATTR_INTERFACE = 16, ATBM_P2P_ATTR_OPERATING_CHANNEL = 17, ATBM_P2P_ATTR_INVITATION_FLAGS = 18, ATBM_P2P_ATTR_VENDOR_SPECIFIC = 221 }; /* P2P public action frames */ enum atbm_p2p_action_frame_type { ATBM_P2P_GO_NEG_REQ = 0, ATBM_P2P_GO_NEG_RESP = 1, ATBM_P2P_GO_NEG_CONF = 2, ATBM_P2P_INVITATION_REQ = 3, ATBM_P2P_INVITATION_RESP = 4, ATBM_P2P_DEV_DISC_REQ = 5, ATBM_P2P_DEV_DISC_RESP = 6, ATBM_P2P_PROV_DISC_REQ = 7, ATBM_P2P_PROV_DISC_RESP = 8 }; struct atbm_p2p_message { u8 dialog_token; u8 *capability; u8 *go_intent; u8 *status; u8 *operating_channel; u8 *channel_list; u8 channel_list_len; u8 *group_bssid; u8 *invitation_flags; u8 *group_info; size_t group_info_len; u8 *group_id; size_t group_id_len; u8 *device_id; u8 *manageability; u8 *intended_addr; }; struct atbm_ieee80211_vendor_ie { u8 element_id; u8 len; u8 oui[3]; u8 oui_type; } __packed; struct atbm_ieee80211_mgmt { __le16 frame_control; __le16 duration; u8 da[6]; u8 sa[6]; u8 bssid[6]; __le16 seq_ctrl; union { struct { __le16 auth_alg; __le16 auth_transaction; __le16 status_code; /* possibly followed by Challenge text */ u8 variable[0]; } __attribute__ ((packed)) auth; struct { __le16 reason_code; } __attribute__ ((packed)) deauth; struct { __le16 capab_info; __le16 listen_interval; /* followed by SSID and Supported rates */ u8 variable[0]; } __attribute__ ((packed)) assoc_req; struct { __le16 capab_info; __le16 status_code; __le16 aid; /* followed by Supported rates */ u8 variable[0]; } __attribute__ ((packed)) assoc_resp, reassoc_resp; struct { __le16 capab_info; __le16 listen_interval; u8 current_ap[6]; /* followed by SSID and Supported rates */ u8 variable[0]; } __attribute__ ((packed)) reassoc_req; struct { __le16 reason_code; } __attribute__ ((packed)) disassoc; struct { __le64 timestamp; __le16 beacon_int; __le16 capab_info; /* followed by some of SSID, Supported rates, * FH Params, DS Params, CF Params, IBSS Params, TIM */ u8 variable[0]; } __attribute__ ((packed)) beacon; struct { /* only variable items: SSID, Supported rates */ u8 variable[0]; } __attribute__ ((packed)) probe_req; struct { __le64 timestamp; __le16 beacon_int; __le16 capab_info; /* followed by some of SSID, Supported rates, * FH Params, DS Params, CF Params, IBSS Params */ u8 variable[0]; } __attribute__ ((packed)) probe_resp; struct { u8 category; union { struct { u8 action; /* 9 */ u8 oui[3]; /* Vendor-specific content */ u8 variable[0]; } __attribute__ ((packed)) vs_public_action; struct { u8 action_code; u8 dialog_token; u8 status_code; u8 variable[0]; } __attribute__ ((packed)) wme_action; struct{ u8 action_code; u8 dialog_token; __le16 capab; __le16 timeout; __le16 start_seq_num; } __attribute__((packed)) addba_req; struct{ u8 action_code; u8 dialog_token; __le16 status; __le16 capab; __le16 timeout; } __attribute__((packed)) addba_resp; struct{ u8 action_code; __le16 params; __le16 reason_code; } __attribute__((packed)) delba; struct { u8 action_code; u8 variable[0]; } __attribute__((packed)) self_prot; struct{ u8 action_code; u8 variable[0]; } __attribute__((packed)) mesh_action; struct { u8 action; u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; } __attribute__ ((packed)) sa_query; struct { u8 action; u8 smps_control; } __attribute__ ((packed)) ht_smps; struct { u8 action_code; u8 dialog_token; __le16 capability; u8 variable[0]; } __packed tdls_discover_resp; } u; } __attribute__ ((packed)) action; } u; } __attribute__ ((packed)); #ifndef WLAN_EXT_CAPA5_TDLS_ENABLED #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5) #endif #ifndef WLAN_TDLS_SNAP_RFTYPE #define WLAN_TDLS_SNAP_RFTYPE 0x2 #endif /** * DOC: Introduction * * mac80211 is the Linux stack for 802.11 hardware that implements * only partial functionality in hard- or firmware. This document * defines the interface between mac80211 and low-level hardware * drivers. */ /** * DOC: Calling mac80211 from interrupts * * Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() can be * called in hardware interrupt context. The low-level driver must not call any * other functions in hardware interrupt context. If there is a need for such * call, the low-level driver should first ACK the interrupt and perform the * IEEE 802.11 code call after this, e.g. from a scheduled workqueue or even * tasklet function. * * NOTE: If the driver opts to use the _irqsafe() functions, it may not also * use the non-IRQ-safe functions! */ /** * DOC: Warning * * If you're reading this document and not the header file itself, it will * be incomplete because not all documentation has been converted yet. */ /** * DOC: Frame format * * As a general rule, when frames are passed between mac80211 and the driver, * they start with the IEEE 802.11 header and include the same octets that are * sent over the air except for the FCS which should be calculated by the * hardware. * * There are, however, various exceptions to this rule for advanced features: * * The first exception is for hardware encryption and decryption offload * where the IV/ICV may or may not be generated in hardware. * * Secondly, when the hardware handles fragmentation, the frame handed to * the driver from mac80211 is the MSDU, not the MPDU. * * Finally, for received frames, the driver is able to indicate that it has * filled a radiotap header and put that in front of the frame; if it does * not do so then mac80211 may add this under certain circumstances. */ /** * DOC: mac80211 workqueue * * mac80211 provides its own workqueue for drivers and internal mac80211 use. * The workqueue is a single threaded workqueue and can only be accessed by * helpers for sanity checking. Drivers must ensure all work added onto the * mac80211 workqueue should be cancelled on the driver stop() callback. * * mac80211 will flushed the workqueue upon interface removal and during * suspend. * * All work performed on the mac80211 workqueue must not acquire the RTNL lock. * */ /** * enum ieee80211_max_queues - maximum number of queues * * @IEEE80211_MAX_QUEUES: Maximum number of regular device queues. */ enum ieee80211_max_queues { IEEE80211_MAX_QUEUES = 16, }; #define IEEE80211_INVAL_HW_QUEUE 0xff /** * enum ieee80211_ac_numbers - AC numbers as used in mac80211 * @IEEE80211_AC_VO: voice * @IEEE80211_AC_VI: video * @IEEE80211_AC_BE: best effort * @IEEE80211_AC_BK: background */ enum ieee80211_ac_numbers { IEEE80211_AC_VO = 0, IEEE80211_AC_VI = 1, IEEE80211_AC_BE = 2, IEEE80211_AC_BK = 3, }; /** * enum atbmwifi_ieee80211_ac_numbers - AC numbers as used in mac80211 * @IEEE80211_AC_VO: voice * @IEEE80211_AC_VI: video * @IEEE80211_AC_BE: best effort * @IEEE80211_AC_BK: background */ enum atbmwifi_ieee80211_ac_numbers { ATBM_IEEE80211_AC_VO = 0, ATBM_IEEE80211_AC_VI = 1, ATBM_IEEE80211_AC_BE = 2, ATBM_IEEE80211_AC_BK = 3, }; #define IEEE80211_NUM_ACS 4 /** * struct ieee80211_tx_queue_params - transmit queue configuration * * The information provided in this structure is required for QoS * transmit queue configuration. Cf. IEEE 802.11 7.3.2.29. * * @aifs: arbitration interframe space [0..255] * @cw_min: minimum contention window [a value of the form * 2^n-1 in the range 1..32767] * @cw_max: maximum contention window [like @cw_min] * @txop: maximum burst time in units of 32 usecs, 0 meaning disabled * @uapsd: is U-APSD mode enabled for the queue */ struct ieee80211_tx_queue_params { u16 txop; u16 cw_min; u16 cw_max; u8 aifs; bool uapsd; }; struct ieee80211_low_level_stats { unsigned int dot11ACKFailureCount; unsigned int dot11RTSFailureCount; unsigned int dot11FCSErrorCount; unsigned int dot11RTSSuccessCount; }; /** * enum ieee80211_bss_change - BSS change notification flags * * These flags are used with the bss_info_changed() callback * to indicate which BSS parameter changed. * * @BSS_CHANGED_ASSOC: association status changed (associated/disassociated), * also implies a change in the AID. * @BSS_CHANGED_ERP_CTS_PROT: CTS protection changed * @BSS_CHANGED_ERP_PREAMBLE: preamble changed * @BSS_CHANGED_ERP_SLOT: slot timing changed * @BSS_CHANGED_HT: 802.11n parameters changed * @BSS_CHANGED_BASIC_RATES: Basic rateset changed * @BSS_CHANGED_BEACON_INT: Beacon interval changed * @BSS_CHANGED_BSSID: BSSID changed, for whatever * reason (IBSS and managed mode) * @BSS_CHANGED_BEACON: Beacon data changed, retrieve * new beacon (beaconing modes) * @BSS_CHANGED_BEACON_ENABLED: Beaconing should be * enabled/disabled (beaconing modes) * @BSS_CHANGED_CQM: Connection quality monitor config changed * @BSS_CHANGED_IBSS: IBSS join status changed * @BSS_CHANGED_ARP_FILTER: Hardware ARP filter address list or state changed. * @BSS_CHANGED_QOS: QoS for this association was enabled/disabled. Note * that it is only ever disabled for station mode. * @BSS_CHANGED_IDLE: Idle changed for this BSS/interface. * @BSS_CHANGED_SSID: SSID changed for this BSS (AP mode) * @BSS_CHANGED_PS: the PS flag or dynamic PS timeout changed * @BSS_CHANGED_CHANNEL: vif channel changed * @BSS_CHANGED_P2P_PS: NOA parameters changed. */ enum ieee80211_bss_change { BSS_CHANGED_ASSOC = 1<<0, BSS_CHANGED_ERP_CTS_PROT = 1<<1, BSS_CHANGED_ERP_PREAMBLE = 1<<2, BSS_CHANGED_ERP_SLOT = 1<<3, BSS_CHANGED_HT = 1<<4, BSS_CHANGED_BASIC_RATES = 1<<5, BSS_CHANGED_BEACON_INT = 1<<6, BSS_CHANGED_BSSID = 1<<7, BSS_CHANGED_BEACON = 1<<8, BSS_CHANGED_BEACON_ENABLED = 1<<9, BSS_CHANGED_CQM = 1<<10, BSS_CHANGED_IBSS = 1<<11, BSS_CHANGED_ARP_FILTER = 1<<12, BSS_CHANGED_QOS = 1<<13, BSS_CHANGED_IDLE = 1<<14, BSS_CHANGED_SSID = 1<<15, BSS_CHANGED_PS = 1<<16, BSS_CHANGED_CHANNEL = 1<<17, // XXX: COMBO: should this be merged with _HT? BSS_CHANGED_RETRY_LIMITS = 1<<18, BSS_CHANGED_P2P_PS = 1<<19, #ifdef IPV6_FILTERING BSS_CHANGED_NDP_FILTER = 1<<20, #endif /*IPV6_FILTERING*/ BSS_CHANGED_STA_RESTART = 1<<21, /* when adding here, make sure to change ieee80211_reconfig */ }; /* * The maximum number of IPv4 addresses listed for ARP filtering. If the number * of addresses for an interface increase beyond this value, hardware ARP * filtering will be disabled. */ #define IEEE80211_BSS_ARP_ADDR_LIST_LEN 4 #ifdef IPV6_FILTERING /* * The maximum number of IPv6 addresses listed for NDP filtering. If the number * of addresses for an interface increase beyond this value, hardware NDP * filtering will be disabled. */ #define IEEE80211_BSS_NDP_ADDR_LIST_LEN 4 #endif /*IPV6_FILTERING*/ #define IEEE80211_TX_CTL_STBC_SHIFT 23 /* there are 40 bytes if you don't need the rateset to be kept */ #define IEEE80211_TX_INFO_DRIVER_DATA_SIZE 40 /* if you do need the rateset, then you have less space */ #define IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE 24 /* maximum number of rate stages */ #define IEEE80211_TX_MAX_RATES 5 /** * enum mac80211_rx_flags - receive flags * * These flags are used with the @flag member of &struct ieee80211_rx_status. * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame. * Use together with %RX_FLAG_MMIC_STRIPPED. * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware. * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame, * verification has been done by the hardware. * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame. * If this flag is set, the stack cannot do any replay detection * hence the driver or hardware will have to do that. * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on * the frame. * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on * the frame. * @RX_FLAG_MACTIME_MPDU: The timestamp passed in the RX status (@mactime * field) is valid and contains the time the first symbol of the MPDU * was received. This is useful in monitor mode and for proper IBSS * merging. * @RX_FLAG_SHORTPRE: Short preamble was used for this frame * @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index * @RX_FLAG_40MHZ: HT40 (40 MHz) was used * @RX_FLAG_SHORT_GI: Short guard interval was used */ enum mac80211_rx_flags { RX_FLAG_MMIC_ERROR = 1<<0, RX_FLAG_DECRYPTED = 1<<1, RX_FLAG_MMIC_STRIPPED = 1<<3, RX_FLAG_IV_STRIPPED = 1<<4, RX_FLAG_FAILED_FCS_CRC = 1<<5, RX_FLAG_FAILED_PLCP_CRC = 1<<6, RX_FLAG_MACTIME_MPDU = 1<<7, RX_FLAG_SHORTPRE = 1<<8, RX_FLAG_HT = 1<<9, RX_FLAG_40MHZ = 1<<10, RX_FLAG_SHORT_GI = 1<<11, RX_FLAG_HW_CHKSUM_ERROR = 1<<12, RX_FLAG_STA_LISTEN = 1<<13, }; /** * struct ieee80211_rx_status - receive status * * The low-level driver should provide this information (the subset * supported by hardware) to the 802.11 code with each received * frame, in the skb's control buffer (cb). * * @mactime: value in microseconds of the 64-bit Time Synchronization Function * (TSF) timer when the first data symbol (MPDU) arrived at the hardware. * @band: the active band when this frame was received * @freq: frequency the radio was tuned to when receiving this frame, in MHz * @signal: signal strength when receiving this frame, either in dBm, in dB or * unspecified depending on the hardware capabilities flags * @IEEE80211_HW_SIGNAL_* * @antenna: antenna used * @rate_idx: index of data rate into band's supported rates or MCS index if * HT rates are use (RX_FLAG_HT) * @flag: %RX_FLAG_* * @rx_flags: internal RX flags for mac80211 */ struct ieee80211_rx_status { u64 mactime; enum ieee80211_band band; int freq; int signal; int antenna; int rate_idx; int flag; unsigned int rx_flags; }; /** * enum ieee80211_key_flags - key flags * * These flags are used for communication about keys between the driver * and mac80211, with the @flags parameter of &struct ieee80211_key_conf. * * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates * that the STA this key will be used with could be using QoS. * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the * driver to indicate that it requires IV generation for this * particular key. * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by * the driver for a TKIP key if it requires Michael MIC * generation in software. * @IEEE80211_KEY_FLAG_PAIRWISE: Set by mac80211, this flag indicates * that the key is pairwise rather then a shared key. * @IEEE80211_KEY_FLAG_SW_MGMT: This flag should be set by the driver for a * CCMP key if it requires CCMP encryption of management frames (MFP) to * be done in software. */ enum ieee80211_key_flags { IEEE80211_KEY_FLAG_WMM_STA = 1<<0, IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1, IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2, IEEE80211_KEY_FLAG_PAIRWISE = 1<<3, IEEE80211_KEY_FLAG_SW_MGMT = 1<<4, IEEE80211_KEY_FLAG_ALLOC_IV = 1<<5, }; /** * struct ieee80211_key_conf - key information * * This key information is given by mac80211 to the driver by * the set_key() callback in &struct ieee80211_ops. * * @hw_key_idx: To be set by the driver, this is the key index the driver * wants to be given when a frame is transmitted and needs to be * encrypted in hardware. * @cipher: The key's cipher suite selector. * @flags: key flags, see &enum ieee80211_key_flags. * @keyidx: the key index (0-3) * @keylen: key material length * @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte) * data block: * - Temporal Encryption Key (128 bits) * - Temporal Authenticator Tx MIC Key (64 bits) * - Temporal Authenticator Rx MIC Key (64 bits) * @icv_len: The ICV length for this key type * @iv_len: The IV length for this key type */ struct ieee80211_key_conf { u32 cipher; u8 icv_len; u8 iv_len; u8 hw_key_idx; u8 flags; s8 keyidx; u8 keylen; u8 key[0]; }; /** * struct ieee80211_sta - station table entry * * A station table entry represents a station we are possibly * communicating with. Since stations are RCU-managed in * mac80211, any ieee80211_sta pointer you get access to must * either be protected by rcu_read_lock() explicitly or implicitly, * or you must take good care to not use such a pointer after a * call to your sta_remove callback that removed it. * * @addr: MAC address * @aid: AID we assigned to the station if we're an AP * @supp_rates: Bitmap of supported rates (per band) * @ht_cap: HT capabilities of this STA; restricted to our own TX capabilities * @wme: indicates whether the STA supports WME. Only valid during AP-mode. * @drv_priv: data area for driver use, will always be aligned to * sizeof(void *), size is determined in hw information. * @uapsd_queues: bitmap of queues configured for uapsd. Only valid * if wme is supported. * @max_sp: max Service Period. Only valid if wme is supported. */ struct ieee80211_sta { u32 supp_rates[IEEE80211_NUM_BANDS]; u8 addr[ETH_ALEN]; u16 aid; struct ieee80211_sta_ht_cap ht_cap; bool wme; u8 uapsd_queues; u8 max_sp; struct atbm_wpa_ie_data wpa_sta_data; }; /** * enum ieee80211_hw_flags - hardware flags * * These flags are used to indicate hardware capabilities to * the stack. Generally, flags here should have their meaning * done in a way that the simplest hardware doesn't need setting * any particular flags. There are some exceptions to this rule, * however, so you are advised to review these flags carefully. * * @IEEE80211_HW_HAS_RATE_CONTROL: * The hardware or firmware includes rate control, and cannot be * controlled by the stack. As such, no rate control algorithm * should be instantiated, and the TX rate reported to userspace * will be taken from the TX status instead of the rate control * algorithm. * Note that this requires that the driver implement a number of * callbacks so it has the correct information, it needs to have * the @set_rts_threshold callback and must look at the BSS config * @use_cts_prot for G/N protection, @use_short_slot for slot * timing in 2.4 GHz and @use_short_preamble for preambles for * CCK frames. * * @IEEE80211_HW_RX_INCLUDES_FCS: * Indicates that received frames passed to the stack include * the FCS at the end. * * @IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING: * Some wireless LAN chipsets buffer broadcast/multicast frames * for power saving stations in the hardware/firmware and others * rely on the host system for such buffering. This option is used * to configure the IEEE 802.11 upper layer to buffer broadcast and * multicast frames when there are power saving stations so that * the driver can fetch them with ieee80211_get_buffered_bc(). * * @IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE: * Hardware is not capable of short slot operation on the 2.4 GHz band. * * @IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE: * Hardware is not capable of receiving frames with short preamble on * the 2.4 GHz band. * * @IEEE80211_HW_SIGNAL_UNSPEC: * Hardware can provide signal values but we don't know its units. We * expect values between 0 and @max_signal. * If possible please provide dB or dBm instead. * * @IEEE80211_HW_SIGNAL_DBM: * Hardware gives signal values in dBm, decibel difference from * one milliwatt. This is the preferred method since it is standardized * between different devices. @max_signal does not need to be set. * * @IEEE80211_HW_SPECTRUM_MGMT: * Hardware supports spectrum management defined in 802.11h * Measurement, Channel Switch, Quieting, TPC * * @IEEE80211_HW_AMPDU_AGGREGATION: * Hardware supports 11n A-MPDU aggregation. * * @IEEE80211_HW_SUPPORTS_PS: * Hardware has power save support (i.e. can go to sleep). * * @IEEE80211_HW_PS_NULLFUNC_STACK: * Hardware requires nullfunc frame handling in stack, implies * stack support for dynamic PS. * * @IEEE80211_HW_SUPPORTS_DYNAMIC_PS: * Hardware has support for dynamic PS. * * @IEEE80211_HW_MFP_CAPABLE: * Hardware supports management frame protection (MFP, IEEE 802.11w). * * @IEEE80211_HW_BEACON_FILTER: * Hardware supports dropping of irrelevant beacon frames to * avoid waking up cpu. * * @IEEE80211_HW_SUPPORTS_STATIC_SMPS: * Hardware supports static spatial multiplexing powersave, * ie. can turn off all but one chain even on HT connections * that should be using more chains. * * @IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS: * Hardware supports dynamic spatial multiplexing powersave, * ie. can turn off all but one chain and then wake the rest * up as required after, for example, rts/cts handshake. * * @IEEE80211_HW_SUPPORTS_UAPSD: * Hardware supports Unscheduled Automatic Power Save Delivery * (U-APSD) in managed mode. The mode is configured with * conf_tx() operation. * * @IEEE80211_HW_REPORTS_TX_ACK_STATUS: * Hardware can provide ack status reports of Tx frames to * the stack. * * @IEEE80211_HW_CONNECTION_MONITOR: * The hardware performs its own connection monitoring, including * periodic keep-alives to the AP and probing the AP on beacon loss. * When this flag is set, signaling beacon-loss will cause an immediate * change to disassociated state. * * @IEEE80211_HW_SUPPORTS_CQM_RSSI: * Hardware can do connection quality monitoring - i.e. it can monitor * connection quality related parameters, such as the RSSI level and * provide notifications if configured trigger levels are reached. * * @IEEE80211_HW_NEED_DTIM_PERIOD: * This device needs to know the DTIM period for the BSS before * associating. * * @IEEE80211_HW_SUPPORTS_PER_STA_GTK: The device's crypto engine supports * per-station GTKs as used by IBSS RSN or during fast transition. If * the device doesn't support per-station GTKs, but can be asked not * to decrypt group addressed frames, then IBSS RSN support is still * possible but software crypto will be used. Advertise the wiphy flag * only in that case. * * @IEEE80211_HW_AP_LINK_PS: When operating in AP mode the device * autonomously manages the PS status of connected stations. When * this flag is set mac80211 will not trigger PS mode for connected * stations based on the PM bit of incoming frames. * Use ieee80211_start_ps()/ieee8021_end_ps() to manually configure * the PS mode of connected stations. * * @IEEE80211_HW_TX_AMPDU_SETUP_IN_HW: The device handles TX A-MPDU session * setup strictly in HW. mac80211 should not attempt to do this in * software. * * @IEEE80211_HW_SUPPORTS_CQM_BEACON_MISS * Connection quality monitoring - beacon miss. * * @IEEE80211_HW_SUPPORTS_CQM_TX_FAIL * Connection quality monitoring - tx failure. * * @IEEE80211_HW_SUPPORTS_MULTI_CHANNEL * Hardware supports simultaneous operation on different channels. * * @IEEE80211_HW_QUEUE_CONTROL: The driver wants to control per-interface * queue mapping in order to use different queues (not just one per AC) * for different virtual interfaces. See the doc section on HW queue * control for more details. */ enum ieee80211_hw_flags { IEEE80211_HW_HAS_RATE_CONTROL = 1<<0, IEEE80211_HW_RX_INCLUDES_FCS = 1<<1, IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING = 1<<2, IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE = 1<<3, IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE = 1<<4, IEEE80211_HW_SIGNAL_UNSPEC = 1<<5, IEEE80211_HW_SIGNAL_DBM = 1<<6, IEEE80211_HW_NEED_DTIM_PERIOD = 1<<7, IEEE80211_HW_SPECTRUM_MGMT = 1<<8, IEEE80211_HW_AMPDU_AGGREGATION = 1<<9, IEEE80211_HW_SUPPORTS_PS = 1<<10, IEEE80211_HW_PS_NULLFUNC_STACK = 1<<11, IEEE80211_HW_SUPPORTS_DYNAMIC_PS = 1<<12, IEEE80211_HW_MFP_CAPABLE = 1<<13, IEEE80211_HW_BEACON_FILTER = 1<<14, IEEE80211_HW_SUPPORTS_STATIC_SMPS = 1<<15, IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS = 1<<16, IEEE80211_HW_SUPPORTS_UAPSD = 1<<17, IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18, IEEE80211_HW_CONNECTION_MONITOR = 1<<19, IEEE80211_HW_SUPPORTS_CQM_RSSI = 1<<20, IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21, IEEE80211_HW_AP_LINK_PS = 1<<22, IEEE80211_HW_TX_AMPDU_SETUP_IN_HW = 1<<23, IEEE80211_HW_SUPPORTS_CQM_BEACON_MISS = 1<<24, IEEE80211_HW_SUPPORTS_CQM_TX_FAIL = 1<<25, IEEE80211_HW_SUPPORTS_P2P_PS = 1<<26, IEEE80211_HW_SUPPORTS_MULTI_CHANNEL = 1<<27, IEEE80211_HW_QUEUE_CONTROL = 1<<28, }; /** * struct ieee80211_hw - hardware information and state * * This structure contains the configuration and hardware * information for an 802.11 PHY. * * @wiphy: This points to the &struct wiphy allocated for this * 802.11 PHY. You must fill in the @perm_addr and @dev * members of this structure using SET_IEEE80211_DEV() * and SET_IEEE80211_PERM_ADDR(). Additionally, all supported * bands (with channels, bitrates) are registered here. * * @conf: &struct ieee80211_conf, device configuration, don't use. * * @priv: pointer to private area that was allocated for driver use * along with this structure. * * @flags: hardware flags, see &enum ieee80211_hw_flags. * * @extra_tx_headroom: headroom to reserve in each transmit skb * for use by the driver (e.g. for transmit headers.) * * @channel_change_time: time (in microseconds) it takes to change channels. * * @max_signal: Maximum value for signal (rssi) in RX information, used * only when @IEEE80211_HW_SIGNAL_UNSPEC or @IEEE80211_HW_SIGNAL_DB * * @max_listen_interval: max listen interval in units of beacon interval * that HW supports * * @queues: number of available hardware transmit queues for * data packets. WMM/QoS requires at least four, these * queues need to have configurable access parameters. * * @rate_control_algorithm: rate control algorithm for this hardware. * If unset (NULL), the default algorithm will be used. Must be * set before calling ieee80211_register_hw(). * * @vif_data_size: size (in bytes) of the drv_priv data area * within &struct ieee80211_vif. * @sta_data_size: size (in bytes) of the drv_priv data area * within &struct ieee80211_sta. * * @max_rates: maximum number of alternate rate retry stages the hw * can handle. * @max_report_rates: maximum number of alternate rate retry stages * the hw can report back. * @max_rate_tries: maximum number of tries for each stage * * @napi_weight: weight used for NAPI polling. You must specify an * appropriate value here if a napi_poll operation is provided * by your driver. * * @max_rx_aggregation_subframes: maximum buffer size (number of * sub-frames) to be used for A-MPDU block ack receiver * aggregation. * This is only relevant if the device has restrictions on the * number of subframes, if it relies on mac80211 to do reordering * it shouldn't be set. * * @max_tx_aggregation_subframes: maximum number of subframes in an * aggregate an HT driver will transmit, used by the peer as a * hint to size its reorder buffer. * * @offchannel_tx_hw_queue: HW queue ID to use for offchannel TX * (if %IEEE80211_HW_QUEUE_CONTROL is set) */ /** * DOC: Hardware crypto acceleration * * mac80211 is capable of taking advantage of many hardware * acceleration designs for encryption and decryption operations. * * The set_key() callback in the &struct ieee80211_ops for a given * device is called to enable hardware acceleration of encryption and * decryption. The callback takes a @sta parameter that will be NULL * for default keys or keys used for transmission only, or point to * the station information for the peer for individual keys. * Multiple transmission keys with the same key index may be used when * VLANs are configured for an access point. * * When transmitting, the TX control data will use the @hw_key_idx * selected by the driver by modifying the &struct ieee80211_key_conf * pointed to by the @key parameter to the set_key() function. * * The set_key() call for the %SET_KEY command should return 0 if * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be * added; if you return 0 then hw_key_idx must be assigned to the * hardware key index, you are free to use the full u8 range. * * When the cmd is %DISABLE_KEY then it must succeed. * * Note that it is permissible to not decrypt a frame even if a key * for it has been uploaded to hardware, the stack will not make any * decision based on whether a key has been uploaded or not but rather * based on the receive flags. * * The &struct ieee80211_key_conf structure pointed to by the @key * parameter is guaranteed to be valid until another call to set_key() * removes it, but it can only be used as a cookie to differentiate * keys. * * In TKIP some HW need to be provided a phase 1 key, for RX decryption * acceleration (i.e. iwlwifi). Those drivers should provide update_tkip_key * handler. * The update_tkip_key() call updates the driver with the new phase 1 key. * This happens every time the iv16 wraps around (every 65536 packets). The * set_key() call will happen only once for each key (unless the AP did * rekeying), it will not include a valid phase 1 key. The valid phase 1 key is * provided by update_tkip_key only. The trigger that makes mac80211 call this * handler is software decryption with wrap around of iv16. */ /** * DOC: Powersave support * * mac80211 has support for various powersave implementations. * * First, it can support hardware that handles all powersaving by itself, * such hardware should simply set the %IEEE80211_HW_SUPPORTS_PS hardware * flag. In that case, it will be told about the desired powersave mode * with the %IEEE80211_CONF_PS flag depending on the association status. * The hardware must take care of sending nullfunc frames when necessary, * i.e. when entering and leaving powersave mode. The hardware is required * to look at the AID in beacons and signal to the AP that it woke up when * it finds traffic directed to it. * * %IEEE80211_CONF_PS flag enabled means that the powersave mode defined in * IEEE 802.11-2007 section 11.2 is enabled. This is not to be confused * with hardware wakeup and sleep states. Driver is responsible for waking * up the hardware before issuing commands to the hardware and putting it * back to sleep at appropriate times. * * When PS is enabled, hardware needs to wakeup for beacons and receive the * buffered multicast/broadcast frames after the beacon. Also it must be * possible to send frames and receive the acknowledment frame. * * Other hardware designs cannot send nullfunc frames by themselves and also * need software support for parsing the TIM bitmap. This is also supported * by mac80211 by combining the %IEEE80211_HW_SUPPORTS_PS and * %IEEE80211_HW_PS_NULLFUNC_STACK flags. The hardware is of course still * required to pass up beacons. The hardware is still required to handle * waking up for multicast traffic; if it cannot the driver must handle that * as best as it can, mac80211 is too slow to do that. * * Dynamic powersave is an extension to normal powersave in which the * hardware stays awake for a user-specified period of time after sending a * frame so that reply frames need not be buffered and therefore delayed to * the next wakeup. It's compromise of getting good enough latency when * there's data traffic and still saving significantly power in idle * periods. * * Dynamic powersave is simply supported by mac80211 enabling and disabling * PS based on traffic. Driver needs to only set %IEEE80211_HW_SUPPORTS_PS * flag and mac80211 will handle everything automatically. Additionally, * hardware having support for the dynamic PS feature may set the * %IEEE80211_HW_SUPPORTS_DYNAMIC_PS flag to indicate that it can support * dynamic PS mode itself. The driver needs to look at the * @dynamic_ps_timeout hardware configuration value and use it that value * whenever %IEEE80211_CONF_PS is set. In this case mac80211 will disable * dynamic PS feature in stack and will just keep %IEEE80211_CONF_PS * enabled whenever user has enabled powersave. * * Some hardware need to toggle a single shared antenna between WLAN and * Bluetooth to facilitate co-existence. These types of hardware set * limitations on the use of host controlled dynamic powersave whenever there * is simultaneous WLAN and Bluetooth traffic. For these types of hardware, the * driver may request temporarily going into full power save, in order to * enable toggling the antenna between BT and WLAN. If the driver requests * disabling dynamic powersave, the @dynamic_ps_timeout value will be * temporarily set to zero until the driver re-enables dynamic powersave. * * Driver informs U-APSD client support by enabling * %IEEE80211_HW_SUPPORTS_UAPSD flag. The mode is configured through the * uapsd paramater in conf_tx() operation. Hardware needs to send the QoS * Nullfunc frames and stay awake until the service period has ended. To * utilize U-APSD, dynamic powersave is disabled for voip AC and all frames * from that AC are transmitted with powersave enabled. * * Note: U-APSD client mode is not yet supported with * %IEEE80211_HW_PS_NULLFUNC_STACK. */ /** * DOC: Beacon filter support * * Some hardware have beacon filter support to reduce host cpu wakeups * which will reduce system power consumption. It usuallly works so that * the firmware creates a checksum of the beacon but omits all constantly * changing elements (TSF, TIM etc). Whenever the checksum changes the * beacon is forwarded to the host, otherwise it will be just dropped. That * way the host will only receive beacons where some relevant information * (for example ERP protection or WMM settings) have changed. * * Beacon filter support is advertised with the %IEEE80211_HW_BEACON_FILTER * hardware capability. The driver needs to enable beacon filter support * whenever power save is enabled, that is %IEEE80211_CONF_PS is set. When * power save is enabled, the stack will not check for beacon loss and the * driver needs to notify about loss of beacons with ieee80211_beacon_loss(). * * The time (or number of beacons missed) until the firmware notifies the * driver of a beacon loss event (which in turn causes the driver to call * ieee80211_beacon_loss()) should be configurable and will be controlled * by mac80211 and the roaming algorithm in the future. * * Since there may be constantly changing information elements that nothing * in the software stack cares about, we will, in the future, have mac80211 * tell the driver which information elements are interesting in the sense * that we want to see changes in them. This will include * - a list of information element IDs * - a list of OUIs for the vendor information element * * Ideally, the hardware would filter out any beacons without changes in the * requested elements, but if it cannot support that it may, at the expense * of some efficiency, filter out only a subset. For example, if the device * doesn't support checking for OUIs it should pass up all changes in all * vendor information elements. * * Note that change, for the sake of simplification, also includes information * elements appearing or disappearing from the beacon. * * Some hardware supports an "ignore list" instead, just make sure nothing * that was requested is on the ignore list, and include commonly changing * information element IDs in the ignore list, for example 11 (BSS load) and * the various vendor-assigned IEs with unknown contents (128, 129, 133-136, * 149, 150, 155, 156, 173, 176, 178, 179, 219); for forward compatibility * it could also include some currently unused IDs. * * * In addition to these capabilities, hardware should support notifying the * host of changes in the beacon RSSI. This is relevant to implement roaming * when no traffic is flowing (when traffic is flowing we see the RSSI of * the received data packets). This can consist in notifying the host when * the RSSI changes significantly or when it drops below or rises above * configurable thresholds. In the future these thresholds will also be * configured by mac80211 (which gets them from userspace) to implement * them as the roaming algorithm requires. * * If the hardware cannot implement this, the driver should ask it to * periodically pass beacon frames to the host so that software can do the * signal strength threshold checking. */ /** * DOC: Spatial multiplexing power save * * SMPS (Spatial multiplexing power save) is a mechanism to conserve * power in an 802.11n implementation. For details on the mechanism * and rationale, please refer to 802.11 (as amended by 802.11n-2009) * "11.2.3 SM power save". * * The mac80211 implementation is capable of sending action frames * to update the AP about the station's SMPS mode, and will instruct * the driver to enter the specific mode. It will also announce the * requested SMPS mode during the association handshake. Hardware * support for this feature is required, and can be indicated by * hardware flags. * * The default mode will be "automatic", which nl80211/cfg80211 * defines to be dynamic SMPS in (regular) powersave, and SMPS * turned off otherwise. * * To support this feature, the driver must set the appropriate * hardware support flags, and handle the SMPS flag to the config() * operation. It will then with this mechanism be instructed to * enter the requested SMPS mode while associated to an HT AP. */ /** * DOC: Frame filtering * * mac80211 requires to see many management frames for proper * operation, and users may want to see many more frames when * in monitor mode. However, for best CPU usage and power consumption, * having as few frames as possible percolate through the stack is * desirable. Hence, the hardware should filter as much as possible. * * To achieve this, mac80211 uses filter flags (see below) to tell * the driver's configure_filter() function which frames should be * passed to mac80211 and which should be filtered out. * * Before configure_filter() is invoked, the prepare_multicast() * callback is invoked with the parameters @mc_count and @mc_list * for the combined multicast address list of all virtual interfaces. * It's use is optional, and it returns a u64 that is passed to * configure_filter(). Additionally, configure_filter() has the * arguments @changed_flags telling which flags were changed and * @total_flags with the new flag states. * * If your device has no multicast address filters your driver will * need to check both the %FIF_ALLMULTI flag and the @mc_count * parameter to see whether multicast frames should be accepted * or dropped. * * All unsupported flags in @total_flags must be cleared. * Hardware does not support a flag if it is incapable of _passing_ * the frame to the stack. Otherwise the driver must ignore * the flag, but not clear it. * You must _only_ clear the flag (announce no support for the * flag to mac80211) if you are not able to pass the packet type * to the stack (so the hardware always filters it). * So for example, you should clear @FIF_CONTROL, if your hardware * always filters control frames. If your hardware always passes * control frames to the kernel and is incapable of filtering them, * you do _not_ clear the @FIF_CONTROL flag. * This rule applies to all other FIF flags as well. */ /** * DOC: AP support for powersaving clients * * In order to implement AP and P2P GO modes, mac80211 has support for * client powersaving, both "legacy" PS (PS-Poll/null data) and uAPSD. * There currently is no support for sAPSD. * * There is one assumption that mac80211 makes, namely that a client * will not poll with PS-Poll and trigger with uAPSD at the same time. * Both are supported, and both can be used by the same client, but * they can't be used concurrently by the same client. This simplifies * the driver code. * * The first thing to keep in mind is that there is a flag for complete * driver implementation: %IEEE80211_HW_AP_LINK_PS. If this flag is set, * mac80211 expects the driver to handle most of the state machine for * powersaving clients and will ignore the PM bit in incoming frames. * Drivers then use ieee80211_sta_ps_transition() to inform mac80211 of * stations' powersave transitions. In this mode, mac80211 also doesn't * handle PS-Poll/uAPSD. * * In the mode without %IEEE80211_HW_AP_LINK_PS, mac80211 will check the * PM bit in incoming frames for client powersave transitions. When a * station goes to sleep, we will stop transmitting to it. There is, * however, a race condition: a station might go to sleep while there is * data buffered on hardware queues. If the device has support for this * it will reject frames, and the driver should give the frames back to * mac80211 with the %IEEE80211_TX_STAT_TX_FILTERED flag set which will * cause mac80211 to retry the frame when the station wakes up. The * driver is also notified of powersave transitions by calling its * @sta_notify callback. * * When the station is asleep, it has three choices: it can wake up, * it can PS-Poll, or it can possibly start a uAPSD service period. * Waking up is implemented by simply transmitting all buffered (and * filtered) frames to the station. This is the easiest case. When * the station sends a PS-Poll or a uAPSD trigger frame, mac80211 * will inform the driver of this with the @allow_buffered_frames * callback; this callback is optional. mac80211 will then transmit * the frames as usual and set the %IEEE80211_TX_CTL_POLL_RESPONSE * on each frame. The last frame in the service period (or the only * response to a PS-Poll) also has %IEEE80211_TX_STATUS_EOSP set to * indicate that it ends the service period; as this frame must have * TX status report it also sets %IEEE80211_TX_CTL_REQ_TX_STATUS. * When TX status is reported for this frame, the service period is * marked has having ended and a new one can be started by the peer. * * Another race condition can happen on some devices like iwlwifi * when there are frames queued for the station and it wakes up * or polls; the frames that are already queued could end up being * transmitted first instead, causing reordering and/or wrong * processing of the EOSP. The cause is that allowing frames to be * transmitted to a certain station is out-of-band communication to * the device. To allow this problem to be solved, the driver can * call ieee80211_sta_block_awake() if frames are buffered when it * is notified that the station went to sleep. When all these frames * have been filtered (see above), it must call the function again * to indicate that the station is no longer blocked. * * If the driver buffers frames in the driver for aggregation in any * way, it must use the ieee80211_sta_set_buffered() call when it is * notified of the station going to sleep to inform mac80211 of any * TIDs that have frames buffered. Note that when a station wakes up * this information is reset (hence the requirement to call it when * informed of the station going to sleep). Then, when a service * period starts for any reason, @release_buffered_frames is called * with the number of frames to be released and which TIDs they are * to come from. In this case, the driver is responsible for setting * the EOSP (for uAPSD) and MORE_DATA bits in the released frames, * to help the @more_data paramter is passed to tell the driver if * there is more data on other TIDs -- the TIDs to release frames * from are ignored since mac80211 doesn't know how many frames the * buffers for those TIDs contain. * * If the driver also implement GO mode, where absence periods may * shorten service periods (or abort PS-Poll responses), it must * filter those response frames except in the case of frames that * are buffered in the driver -- those must remain buffered to avoid * reordering. Because it is possible that no frames are released * in this case, the driver must call ieee80211_sta_eosp_irqsafe() * to indicate to mac80211 that the service period ended anyway. * * Finally, if frames from multiple TIDs are released from mac80211 * but the driver might reorder them, it must clear & set the flags * appropriately (only the last frame may have %IEEE80211_TX_STATUS_EOSP) * and also take care of the EOSP and MORE_DATA bits in the frame. * The driver may also use ieee80211_sta_eosp_irqsafe() in this case. */ /** * DOC: HW queue control * * Before HW queue control was introduced, mac80211 only had a single static * assignment of per-interface AC software queues to hardware queues. This * was problematic for a few reasons: * 1) off-channel transmissions might get stuck behind other frames * 2) multiple virtual interfaces couldn't be handled correctly * 3) after-DTIM frames could get stuck behind other frames * * To solve this, hardware typically uses multiple different queues for all * the different usages, and this needs to be propagated into mac80211 so it * won't have the same problem with the software queues. * * Therefore, mac80211 now offers the %IEEE80211_HW_QUEUE_CONTROL capability * flag that tells it that the driver implements its own queue control. To do * so, the driver will set up the various queues in each &struct ieee80211_vif * and the offchannel queue in &struct ieee80211_hw. In response, mac80211 will * use those queue IDs in the hw_queue field of &struct ieee80211_tx_info and * if necessary will queue the frame on the right software queue that mirrors * the hardware queue. * Additionally, the driver has to then use these HW queue IDs for the queue * management functions (ieee80211_stop_queue() et al.) * * The driver is free to set up the queue mappings as needed, multiple virtual * interfaces may map to the same hardware queues if needed. The setup has to * happen during add_interface or change_interface callbacks. For example, a * driver supporting station+station and station+AP modes might decide to have * 10 hardware queues to handle different scenarios: * * 4 AC HW queues for 1st vif: 0, 1, 2, 3 * 4 AC HW queues for 2nd vif: 4, 5, 6, 7 * after-DTIM queue for AP: 8 * off-channel queue: 9 * * It would then set up the hardware like this: * hw.offchannel_tx_hw_queue = 9 * * and the first virtual interface that is added as follows: * vif.hw_queue[IEEE80211_AC_VO] = 0 * vif.hw_queue[IEEE80211_AC_VI] = 1 * vif.hw_queue[IEEE80211_AC_BE] = 2 * vif.hw_queue[IEEE80211_AC_BK] = 3 * vif.cab_queue = 8 // if AP mode, otherwise %IEEE80211_INVAL_HW_QUEUE * and the second virtual interface with 4-7. * * If queue 6 gets full, for example, mac80211 would only stop the second * virtual interface's BE queue since virtual interface queues are per AC. * * Note that the vif.cab_queue value should be set to %IEEE80211_INVAL_HW_QUEUE * whenever the queue is not used (i.e. the interface is not in AP mode) if the * queue could potentially be shared since mac80211 will look at cab_queue when * a queue is stopped/woken even if the interface is not in AP mode. */ /** * enum ieee80211_filter_flags - hardware filter flags * * These flags determine what the filter in hardware should be * programmed to let through and what should not be passed to the * stack. It is always safe to pass more frames than requested, * but this has negative impact on power consumption. * * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS, * think of the BSS as your network segment and then this corresponds * to the regular ethernet device promiscuous mode. * * @FIF_ALLMULTI: pass all multicast frames, this is used if requested * by the user or if the hardware is not capable of filtering by * multicast address. * * @FIF_FCSFAIL: pass frames with failed FCS (but you need to set the * %RX_FLAG_FAILED_FCS_CRC for them) * * @FIF_PLCPFAIL: pass frames with failed PLCP CRC (but you need to set * the %RX_FLAG_FAILED_PLCP_CRC for them * * @FIF_BCN_PRBRESP_PROMISC: This flag is set during scanning to indicate * to the hardware that it should not filter beacons or probe responses * by BSSID. Filtering them can greatly reduce the amount of processing * mac80211 needs to do and the amount of CPU wakeups, so you should * honour this flag if possible. * * @FIF_CONTROL: pass control frames (except for PS Poll), if PROMISC_IN_BSS * is not set then only those addressed to this station. * * @FIF_OTHER_BSS: pass frames destined to other BSSes * * @FIF_PSPOLL: pass PS Poll frames, if PROMISC_IN_BSS is not set then only * those addressed to this station. * * @FIF_PROBE_REQ: pass probe request frames */ enum ieee80211_filter_flags { FIF_PROMISC_IN_BSS = 1<<0, FIF_ALLMULTI = 1<<1, FIF_FCSFAIL = 1<<2, FIF_PLCPFAIL = 1<<3, FIF_BCN_PRBRESP_PROMISC = 1<<4, FIF_CONTROL = 1<<5, FIF_OTHER_BSS = 1<<6, FIF_PSPOLL = 1<<7, FIF_PROBE_REQ = 1<<8, }; /** * enum ieee80211_ampdu_mlme_action - A-MPDU actions * * These flags are used with the ampdu_action() callback in * &struct ieee80211_ops to indicate which action is needed. * * Note that drivers MUST be able to deal with a TX aggregation * session being stopped even before they OK'ed starting it by * calling ieee80211_start_tx_ba_cb_irqsafe, because the peer * might receive the addBA frame and send a delBA right away! * * @IEEE80211_AMPDU_RX_START: start Rx aggregation * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation * @IEEE80211_AMPDU_TX_START: start Tx aggregation * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation * @IEEE80211_AMPDU_TX_OPERATIONAL: TX aggregation has become operational */ enum ieee80211_ampdu_mlme_action { IEEE80211_AMPDU_RX_START, IEEE80211_AMPDU_RX_STOP, IEEE80211_AMPDU_TX_START, IEEE80211_AMPDU_TX_STOP, IEEE80211_AMPDU_TX_OPERATIONAL, }; /** * enum ieee80211_tx_sync_type - TX sync type * @IEEE80211_TX_SYNC_AUTH: sync TX for authentication * (and possibly also before direct probe) * @IEEE80211_TX_SYNC_ASSOC: sync TX for association * @IEEE80211_TX_SYNC_ACTION: sync TX for action frame * (not implemented yet) */ enum ieee80211_tx_sync_type { IEEE80211_TX_SYNC_AUTH, IEEE80211_TX_SYNC_ASSOC, IEEE80211_TX_SYNC_ACTION, }; /** * enum ieee80211_frame_release_type - frame release reason * @IEEE80211_FRAME_RELEASE_PSPOLL: frame released for PS-Poll * @IEEE80211_FRAME_RELEASE_UAPSD: frame(s) released due to * frame received on trigger-enabled AC */ enum ieee80211_frame_release_type { IEEE80211_FRAME_RELEASE_PSPOLL, IEEE80211_FRAME_RELEASE_UAPSD, }; /* * The TX headroom reserved by mac80211 for its own tx_status functions. * This is enough for the radiotap header. */ #define IEEE80211_TX_STATUS_HEADROOM 14 struct atbm_ewma { unsigned long internal; unsigned long factor; unsigned long weight; }; static inline int atbm_ilog2(unsigned long v) { int l = 0; while ((1UL << l) < v) l++; return l; } static inline void atbm_ewma_init(struct atbm_ewma *avg, unsigned long factor, unsigned long weight) { avg->weight = atbm_ilog2(weight); avg->factor = atbm_ilog2(factor); avg->internal = 0; } /** * ewma_add() - Exponentially weighted moving average (EWMA) * @avg: Average structure * @val: Current value * * Add a sample to the average. */ static inline struct atbm_ewma *atbm_ewma_add(struct atbm_ewma *avg, unsigned long val) { avg->internal = avg->internal ? (((avg->internal << avg->weight) - avg->internal) + (val << avg->factor)) >> avg->weight : (val << avg->factor); return avg; } #define ATBM_DIV_ROUND_CLOSEST(x, divisor)( \ { \ typeof(divisor) __divisor = divisor; \ (((x) + ((__divisor) / 2)) / (__divisor)); \ } \ ) static inline unsigned long atbm_ewma_read(const struct atbm_ewma *avg) { return avg->internal >> avg->factor; } static inline const u8 *atbm_ieee80211_find_ie(u8 eid, const u8 *ies, int len) { while (len > 2 && ies[0] != eid) { len -= ies[1] + 2; ies += ies[1] + 2; } if (len < 2) return NULL; if (len < 2 + ies[1]) return NULL; return ies; } static inline const u8 *atbm_ieee80211_find_vendor_ie(unsigned int oui, u8 oui_type, const u8 *ies, int len) { struct atbm_ieee80211_vendor_ie *ie; const u8 *pos = ies, *end = ies + len; int ie_oui; while (pos < end) { pos = atbm_ieee80211_find_ie(ATBM_WLAN_EID_VENDOR_SPECIFIC, pos, end - pos); if (!pos) return NULL; ie = (struct atbm_ieee80211_vendor_ie *)pos; /* make sure we can access ie->len */ BUILD_BUG_ON(offsetof(struct atbm_ieee80211_vendor_ie, len) != 1); if (ie->len < sizeof(*ie)) goto cont; ie_oui = ie->oui[0] << 16 | ie->oui[1] << 8 | ie->oui[2]; if (ie_oui == oui && ie->oui_type == oui_type) return pos; cont: pos += 2 + ie->len; } return NULL; } static inline u8* atbm_ieee80211_find_p2p_ie(const u8 *ie_start,size_t ie_len) { if((ie_start == NULL)||(ie_len == 0)) return NULL; return (u8*)atbm_ieee80211_find_vendor_ie(ATBM_OUI_WFA,ATBM_P2P_OUI_TYPE,ie_start,ie_len); } static inline u8* atbm_ieee80211_find_p2p_attr(u8* attr_start,ssize_t attr_len,u8 attr_id) { if((attr_start == NULL)||(attr_len == 0)) return NULL; // 3 = 1(Attribute ID) + 2(Length) while (attr_len > 2 && attr_start[0] != attr_id) { attr_len -= ATBM_WPA_GET_LE16((const u8*)(&attr_start[1])) + 3; attr_start += ATBM_WPA_GET_LE16((const u8*)(&attr_start[1])) + 3; } if(attr_len<3) return NULL; if (attr_len < 3 + ATBM_WPA_GET_LE16((const u8*)(&attr_start[1]))) return NULL; return attr_start; } static inline int ieee80211_p2p_action_check(u8* data,ssize_t data_len) { #define RETURN_ERR do{res = -1;goto action_check_end;}while(0) int res = 0; u8* p2p_data = data; ssize_t p2p_data_len = data_len; u32 oui_wfa = 0; if(p2p_data[0] != 9/*vendor spec*/) RETURN_ERR; if(p2p_data_len<3) RETURN_ERR; p2p_data++; p2p_data_len--; oui_wfa = (p2p_data[0] << 16) | (p2p_data[1] << 8) | p2p_data[2]; if(oui_wfa != ATBM_OUI_WFA) RETURN_ERR; p2p_data += 3; p2p_data_len -= 3; if (p2p_data_len < 1) RETURN_ERR; if(p2p_data[0] != ATBM_P2P_OUI_TYPE) RETURN_ERR; p2p_data++; p2p_data_len--; if(p2p_data_len<1) RETURN_ERR; res = data_len-p2p_data_len; action_check_end: return res; } #ifndef do_posix_clock_monotonic_gettime #define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) #endif static inline bool atbm_accsii_to_hex(char pos,char *res) { if((pos>='0')&&(pos<='9')){ *res = pos-'0'; return true; }else if((pos>='a')&&(pos<='f')){ *res = pos - 'a'+0x0a; return true; }else if((pos>='A')&&(pos<='F')){ *res = pos - 'A'+0x0a; return true; } return false; } static inline bool atbm_accsii_to_int(const char *pos,int len,int *res) { int res_val = 0; int index = 0; bool neg = false; const char *accsii = pos; if((len == 0) || (len>10) || (len<0)) return false; neg = pos[0] == '-' ? true:false; index = neg == true ? 1:0; if((neg==true)&&(len == 1)) return false; for(;index '9')){ return false; } res_val = res_val*10; res_val += accsii[index]-'0'; } res_val = neg == true?0-res_val:res_val; *res = res_val; return true; } static inline void atbm_common_hash_list_init(struct hlist_head *hlist,u8 size) { u8 index = 0; for(index = 0;index= KERNEL_VERSION(4, 8, 0)) unsigned int hash = full_name_hash(NULL,string,len); #else unsigned int hash = full_name_hash(string,len); #endif return hash_32(hash, hash_bit); } static inline struct hlist_head *atbm_hash_list(const char *string,unsigned int len,struct hlist_head *hlist_table,unsigned int hash_bit) { unsigned int hash = atbm_hash_index(string,len,hash_bit); return &hlist_table[hash]; } static inline u8 ieee80211_rssi_weight(s8 signal) { u8 weight = 0; if(signal <= -75) weight = 0; else if((signal>-75)&&(signal<= -65)) weight = 1; else if((signal>-65)&&(signal<= -50)) weight = 2; else if(signal > -50) weight = 4; else weight = 0; return weight; } static inline struct ieee80211_rx_status *IEEE80211_SKB_RXCB(struct sk_buff *skb) { return (struct ieee80211_rx_status *)skb->cb; } #define ATBM_SPACE ' ' #define ATBM_LINEF '\n' #define ATBM_ENTER '\r' #define ATBM_TAIL '\0' #define ATBM_EQUAL '=' #define ATBM_UNUSED '#' #define ATBM_SOH 1 #define ATBM_EOT 4 #define ATBM_STX 2 #define ATBM_ETX 3 #define ATBM_SPACE_STR " " #define ATBM_LINEF_STR "\n" #define ATBM_COMMON_HASHBITS 4 #define ATBM_COMMON_HASHENTRIES (1 << ATBM_COMMON_HASHBITS) #define ATBM_MAX_SCAN_IE 1 #define ATBM_MAX_SCAN_SSID 2 #define ATBM_MAX_SCAN_MAC_FILTER 8 #define ATBM_MAX_SCAN_PRIVATE_IE_LEN (255-4) #define ATBM_MAX_SCAN_CHANNEL (14+4) extern u32 atbm_printk_mask; #define ATBM_PRINTK_MASK_ERR BIT(0) #define ATBM_PRINTK_MASK_WARN BIT(1) #define ATBM_PRINTK_MASK_INIT BIT(2) #define ATBM_PRINTK_MASK_EXIT BIT(3) #define ATBM_PRINTK_MASK_BUS BIT(4) #define ATBM_PRINTK_MASK_SCAN BIT(5) #define ATBM_PRINTK_MASK_P2P BIT(6) #define ATBM_PRINTK_MASK_MGMT BIT(7) #define ATBM_PRINTK_MASK_LMAC BIT(8) #define ATBM_PRINTK_MASK_AGG BIT(9) #define ATBM_PRINTK_MASK_AP BIT(10) #define ATBM_PRINTK_MASK_STA BIT(11) #define ATBM_PRINTK_MASK_SMARTCONFIG BIT(12) #define ATBM_PRINTK_MASK_WEXT BIT(13) #define ATBM_PRINTK_MASK_TX BIT(14) #define ATBM_PRINTK_MASK_RX BIT(15) #define ATBM_PRINTK_MASK_PM BIT(16) #define ATBM_PRINTK_MASK_PLATFROM BIT(17) #define ATBM_PRINTK_MASK_BH BIT(18) #define ATBM_PRINTK_MASK_CFG80211 BIT(19) #define ATBM_PRINTK_MASK_DEBUG BIT(20) #define ATBM_PRINTK_DEFAULT_MASK (ATBM_PRINTK_MASK_ERR|ATBM_PRINTK_MASK_WARN|ATBM_PRINTK_MASK_INIT| \ ATBM_PRINTK_MASK_EXIT|ATBM_PRINTK_MASK_SCAN|ATBM_PRINTK_MASK_LMAC|ATBM_PRINTK_MASK_PM) #define ATBM_PRINTK_ALL ((u32)(-1)) #define ATBM_PRINTK_CLEAR (0) #define ATBM_TAG "[atbm_log]:" #define atbm_printk(_level,fmt,arg...) do {if(atbm_printk_mask&(_level)) printk(KERN_ERR ATBM_TAG fmt,##arg);}while(0) #define DEBUG_PRINTF(string,args...) printk(KERN_ERR "\033[35m""[%s]:(%d) "string"\033[0m",__FUNCTION__,__LINE__,##args) /* *atbm printk */ #define atbm_printk_err(...) atbm_printk(ATBM_PRINTK_MASK_ERR,__VA_ARGS__) #define atbm_printk_warn(...) atbm_printk(ATBM_PRINTK_MASK_WARN,__VA_ARGS__) #define atbm_printk_init(...) atbm_printk(ATBM_PRINTK_MASK_INIT,__VA_ARGS__) #define atbm_printk_exit(...) atbm_printk(ATBM_PRINTK_MASK_EXIT,__VA_ARGS__) #define atbm_printk_bus(...) atbm_printk(ATBM_PRINTK_MASK_BUS,__VA_ARGS__) #define atbm_printk_scan(...) atbm_printk(ATBM_PRINTK_MASK_SCAN,__VA_ARGS__) #define atbm_printk_p2p(...) atbm_printk(ATBM_PRINTK_MASK_P2P,__VA_ARGS__) #define atbm_printk_mgmt(...) atbm_printk(ATBM_PRINTK_MASK_MGMT,__VA_ARGS__) #define atbm_printk_lmac(...) atbm_printk(ATBM_PRINTK_MASK_LMAC,__VA_ARGS__) #define atbm_printk_agg(...) atbm_printk(ATBM_PRINTK_MASK_AGG,__VA_ARGS__) #define atbm_printk_ap(...) atbm_printk(ATBM_PRINTK_MASK_AP,__VA_ARGS__) #define atbm_printk_sta(...) atbm_printk(ATBM_PRINTK_MASK_STA,__VA_ARGS__) #define atbm_printk_smt(...) atbm_printk(ATBM_PRINTK_MASK_SMARTCONFIG,__VA_ARGS__) #define atbm_printk_wext(...) atbm_printk(ATBM_PRINTK_MASK_WEXT,__VA_ARGS__) #define atbm_printk_tx(...) atbm_printk(ATBM_PRINTK_MASK_TX,__VA_ARGS__) #define atbm_printk_rx(...) atbm_printk(ATBM_PRINTK_MASK_RX,__VA_ARGS__) #define atbm_printk_pm(...) atbm_printk(ATBM_PRINTK_MASK_PM,__VA_ARGS__) #define atbm_printk_platform(...) atbm_printk(ATBM_PRINTK_MASK_PLATFROM,__VA_ARGS__) #define atbm_printk_bh(...) atbm_printk(ATBM_PRINTK_MASK_BH,__VA_ARGS__) #define atbm_printk_cfg(...) atbm_printk(ATBM_PRINTK_MASK_CFG80211,__VA_ARGS__) #define atbm_printk_debug(...) atbm_printk(ATBM_PRINTK_MASK_DEBUG,__VA_ARGS__) #define atbm_printk_always(fmt,arg...) printk(KERN_ERR ATBM_TAG fmt,##arg) #define ATBM_MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5] #define ATBM_MACSTR "%02x:%02x:%02x:%02x:%02x:%02x" static inline const char* atbm_skip_space(const char *target,ssize_t len) { const char* pos_end = target+len; if((len <= 0)||(target == NULL)){ return NULL; } while((*target == ATBM_SPACE)||(*target == ATBM_LINEF)||(*target == ATBM_ENTER)){ target++; if(target == pos_end){ break; } } return (target == pos_end? NULL:target); } #define ieee80211_chw_is_ht40(chtype) (((chtype) == NL80211_CHAN_HT40PLUS) || ((chtype) == NL80211_CHAN_HT40MINUS)) #define LIGHT "\e[1m" #define NORMAL "\e[0m" #define ENTER "\n" #define highlight_debug(fmt,arg...) \ printk(KERN_ERR LIGHT fmt NORMAL ENTER,##arg) #ifdef MODULE #define atbm_module_parent (&THIS_MODULE->mkobj.kobj) #else #define atbm_module_parent (NULL) #endif /* *atbm timer function */ struct atbm_timer_list { struct timer_list timer; void (*function)(unsigned long data); unsigned long data; unsigned long expires; }; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)) static inline void atbm_timer_handle(struct timer_list *in_timer) #else static inline void atbm_timer_handle(unsigned long data) #endif { #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)) struct atbm_timer_list *atbm_timer = from_timer(atbm_timer, in_timer, timer); #else struct atbm_timer_list *atbm_timer = (struct atbm_timer_list *)data; #endif BUG_ON(atbm_timer->function == NULL); atbm_timer->function(atbm_timer->data); } static inline void atbm_init_timer(struct atbm_timer_list *atbm_timer) { atbm_timer->expires = 0; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)) timer_setup(&atbm_timer->timer, atbm_timer_handle, 0); #else /* setup_timer(ptimer, pfunc,(u32)cntx); */ atbm_timer->timer.function = atbm_timer_handle; atbm_timer->timer.data = (unsigned long)atbm_timer; init_timer(&atbm_timer->timer); #endif } static inline void atbm_setup_timer(struct atbm_timer_list *atbm_timer, void (*function)(unsigned long data),unsigned long data) { atbm_timer->expires = 0; atbm_timer->function = function; atbm_timer->data = data; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)) timer_setup(&atbm_timer->timer, atbm_timer_handle, 0); #else atbm_timer->timer.function = atbm_timer_handle; atbm_timer->timer.data = (unsigned long)atbm_timer; init_timer(&atbm_timer->timer); #endif } static inline int atbm_del_timer_sync(struct atbm_timer_list *atbm_timer) { return del_timer_sync(&atbm_timer->timer); } static inline int atbm_mod_timer(struct atbm_timer_list *atbm_timer, unsigned long expires) { int ret = 0; ret = mod_timer(&atbm_timer->timer,expires); atbm_timer->expires = atbm_timer->timer.expires; return ret; } static inline void atbm_add_timer(struct atbm_timer_list *atbm_timer) { add_timer(&atbm_timer->timer); } static inline int atbm_del_timer(struct atbm_timer_list *atbm_timer) { return del_timer(&atbm_timer->timer); } static inline int atbm_timer_pending(struct atbm_timer_list *atbm_timer) { return timer_pending(&atbm_timer->timer); } #endif /* MAC80211_H */