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/* SPDX-License-Identifier: GPL-2.0-only */ /* * IEEE802.15.4-2003 specification * * Copyright (C) 2007, 2008 Siemens AG * * Written by: * Pavel Smolenskiy <pavel.smolenskiy@gmail.com> * Maxim Gorbachyov <maxim.gorbachev@siemens.com> * Maxim Osipov <maxim.osipov@siemens.com> * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> */ #ifndef LINUX_IEEE802154_H #define LINUX_IEEE802154_H #include <linux/types.h> #include <linux/random.h> #define IEEE802154_MTU 127 #define IEEE802154_ACK_PSDU_LEN 5 #define IEEE802154_MIN_PSDU_LEN 9 #define IEEE802154_FCS_LEN 2 #define IEEE802154_MAX_AUTH_TAG_LEN 16 #define IEEE802154_FC_LEN 2 #define IEEE802154_SEQ_LEN 1 /* General MAC frame format: * 2 bytes: Frame Control * 1 byte: Sequence Number * 20 bytes: Addressing fields * 14 bytes: Auxiliary Security Header */ #define IEEE802154_MAX_HEADER_LEN (2 + 1 + 20 + 14) #define IEEE802154_MIN_HEADER_LEN (IEEE802154_ACK_PSDU_LEN - \ IEEE802154_FCS_LEN) #define IEEE802154_PAN_ID_BROADCAST 0xffff #define IEEE802154_ADDR_SHORT_BROADCAST 0xffff #define IEEE802154_ADDR_SHORT_UNSPEC 0xfffe #define IEEE802154_EXTENDED_ADDR_LEN 8 #define IEEE802154_SHORT_ADDR_LEN 2 #define IEEE802154_PAN_ID_LEN 2 /* Duration in superframe order */ #define IEEE802154_MAX_SCAN_DURATION 14 #define IEEE802154_ACTIVE_SCAN_DURATION 15 /* Superframe duration in slots */ #define IEEE802154_SUPERFRAME_PERIOD 16 /* Various periods expressed in symbols */ #define IEEE802154_SLOT_PERIOD 60 #define IEEE802154_LIFS_PERIOD 40 #define IEEE802154_SIFS_PERIOD 12 #define IEEE802154_MAX_SIFS_FRAME_SIZE 18 #define IEEE802154_MAX_CHANNEL 26 #define IEEE802154_MAX_PAGE 31 #define IEEE802154_FC_TYPE_BEACON 0x0 /* Frame is beacon */ #define IEEE802154_FC_TYPE_DATA 0x1 /* Frame is data */ #define IEEE802154_FC_TYPE_ACK 0x2 /* Frame is acknowledgment */ #define IEEE802154_FC_TYPE_MAC_CMD 0x3 /* Frame is MAC command */ #define IEEE802154_FC_TYPE_SHIFT 0 #define IEEE802154_FC_TYPE_MASK ((1 << 3) - 1) #define IEEE802154_FC_TYPE(x) ((x & IEEE802154_FC_TYPE_MASK) >> IEEE802154_FC_TYPE_SHIFT) #define IEEE802154_FC_SET_TYPE(v, x) do { \ v = (((v) & ~IEEE802154_FC_TYPE_MASK) | \ (((x) << IEEE802154_FC_TYPE_SHIFT) & IEEE802154_FC_TYPE_MASK)); \ } while (0) #define IEEE802154_FC_SECEN_SHIFT 3 #define IEEE802154_FC_SECEN (1 << IEEE802154_FC_SECEN_SHIFT) #define IEEE802154_FC_FRPEND_SHIFT 4 #define IEEE802154_FC_FRPEND (1 << IEEE802154_FC_FRPEND_SHIFT) #define IEEE802154_FC_ACK_REQ_SHIFT 5 #define IEEE802154_FC_ACK_REQ (1 << IEEE802154_FC_ACK_REQ_SHIFT) #define IEEE802154_FC_INTRA_PAN_SHIFT 6 #define IEEE802154_FC_INTRA_PAN (1 << IEEE802154_FC_INTRA_PAN_SHIFT) #define IEEE802154_FC_SAMODE_SHIFT 14 #define IEEE802154_FC_SAMODE_MASK (3 << IEEE802154_FC_SAMODE_SHIFT) #define IEEE802154_FC_DAMODE_SHIFT 10 #define IEEE802154_FC_DAMODE_MASK (3 << IEEE802154_FC_DAMODE_SHIFT) #define IEEE802154_FC_VERSION_SHIFT 12 #define IEEE802154_FC_VERSION_MASK (3 << IEEE802154_FC_VERSION_SHIFT) #define IEEE802154_FC_VERSION(x) ((x & IEEE802154_FC_VERSION_MASK) >> IEEE802154_FC_VERSION_SHIFT) #define IEEE802154_FC_SAMODE(x) \ (((x) & IEEE802154_FC_SAMODE_MASK) >> IEEE802154_FC_SAMODE_SHIFT) #define IEEE802154_FC_DAMODE(x) \ (((x) & IEEE802154_FC_DAMODE_MASK) >> IEEE802154_FC_DAMODE_SHIFT) #define IEEE802154_SCF_SECLEVEL_MASK 7 #define IEEE802154_SCF_SECLEVEL_SHIFT 0 #define IEEE802154_SCF_SECLEVEL(x) (x & IEEE802154_SCF_SECLEVEL_MASK) #define IEEE802154_SCF_KEY_ID_MODE_SHIFT 3 #define IEEE802154_SCF_KEY_ID_MODE_MASK (3 << IEEE802154_SCF_KEY_ID_MODE_SHIFT) #define IEEE802154_SCF_KEY_ID_MODE(x) \ ((x & IEEE802154_SCF_KEY_ID_MODE_MASK) >> IEEE802154_SCF_KEY_ID_MODE_SHIFT) #define IEEE802154_SCF_KEY_IMPLICIT 0 #define IEEE802154_SCF_KEY_INDEX 1 #define IEEE802154_SCF_KEY_SHORT_INDEX 2 #define IEEE802154_SCF_KEY_HW_INDEX 3 #define IEEE802154_SCF_SECLEVEL_NONE 0 #define IEEE802154_SCF_SECLEVEL_MIC32 1 #define IEEE802154_SCF_SECLEVEL_MIC64 2 #define IEEE802154_SCF_SECLEVEL_MIC128 3 #define IEEE802154_SCF_SECLEVEL_ENC 4 #define IEEE802154_SCF_SECLEVEL_ENC_MIC32 5 #define IEEE802154_SCF_SECLEVEL_ENC_MIC64 6 #define IEEE802154_SCF_SECLEVEL_ENC_MIC128 7 /* MAC footer size */ #define IEEE802154_MFR_SIZE 2 /* 2 octets */ /* MAC's Command Frames Identifiers */ #define IEEE802154_CMD_ASSOCIATION_REQ 0x01 #define IEEE802154_CMD_ASSOCIATION_RESP 0x02 #define IEEE802154_CMD_DISASSOCIATION_NOTIFY 0x03 #define IEEE802154_CMD_DATA_REQ 0x04 #define IEEE802154_CMD_PANID_CONFLICT_NOTIFY 0x05 #define IEEE802154_CMD_ORPHAN_NOTIFY 0x06 #define IEEE802154_CMD_BEACON_REQ 0x07 #define IEEE802154_CMD_COORD_REALIGN_NOTIFY 0x08 #define IEEE802154_CMD_GTS_REQ 0x09 /* * The return values of MAC operations */ enum { /* * The requested operation was completed successfully. * For a transmission request, this value indicates * a successful transmission. */ IEEE802154_SUCCESS = 0x0, /* The requested operation failed. */ IEEE802154_MAC_ERROR = 0x1, /* The requested operation has been cancelled. */ IEEE802154_CANCELLED = 0x2, /* * Device is ready to poll the coordinator for data in a non beacon * enabled PAN. */ IEEE802154_READY_FOR_POLL = 0x3, /* Wrong frame counter. */ IEEE802154_COUNTER_ERROR = 0xdb, /* * The frame does not conforms to the incoming key usage policy checking * procedure. */ IEEE802154_IMPROPER_KEY_TYPE = 0xdc, /* * The frame does not conforms to the incoming security level usage * policy checking procedure. */ IEEE802154_IMPROPER_SECURITY_LEVEL = 0xdd, /* Secured frame received with an empty Frame Version field. */ IEEE802154_UNSUPPORTED_LEGACY = 0xde, /* * A secured frame is received or must be sent but security is not * enabled in the device. Or, the Auxiliary Security Header has security * level of zero in it. */ IEEE802154_UNSUPPORTED_SECURITY = 0xdf, /* The beacon was lost following a synchronization request. */ IEEE802154_BEACON_LOST = 0xe0, /* * A transmission could not take place due to activity on the * channel, i.e., the CSMA-CA mechanism has failed. */ IEEE802154_CHANNEL_ACCESS_FAILURE = 0xe1, /* The GTS request has been denied by the PAN coordinator. */ IEEE802154_DENIED = 0xe2, /* The attempt to disable the transceiver has failed. */ IEEE802154_DISABLE_TRX_FAILURE = 0xe3, /* * The received frame induces a failed security check according to * the security suite. */ IEEE802154_FAILED_SECURITY_CHECK = 0xe4, /* * The frame resulting from secure processing has a length that is * greater than aMACMaxFrameSize. */ IEEE802154_FRAME_TOO_LONG = 0xe5, /* * The requested GTS transmission failed because the specified GTS * either did not have a transmit GTS direction or was not defined. */ IEEE802154_INVALID_GTS = 0xe6, /* * A request to purge an MSDU from the transaction queue was made using * an MSDU handle that was not found in the transaction table. */ IEEE802154_INVALID_HANDLE = 0xe7, /* A parameter in the primitive is out of the valid range.*/ IEEE802154_INVALID_PARAMETER = 0xe8, /* No acknowledgment was received after aMaxFrameRetries. */ IEEE802154_NO_ACK = 0xe9, /* A scan operation failed to find any network beacons.*/ IEEE802154_NO_BEACON = 0xea, /* No response data were available following a request. */ IEEE802154_NO_DATA = 0xeb, /* The operation failed because a short address was not allocated. */ IEEE802154_NO_SHORT_ADDRESS = 0xec, /* * A receiver enable request was unsuccessful because it could not be * completed within the CAP. */ IEEE802154_OUT_OF_CAP = 0xed, /* * A PAN identifier conflict has been detected and communicated to the * PAN coordinator. */ IEEE802154_PAN_ID_CONFLICT = 0xee, /* A coordinator realignment command has been received. */ IEEE802154_REALIGNMENT = 0xef, /* The transaction has expired and its information discarded. */ IEEE802154_TRANSACTION_EXPIRED = 0xf0, /* There is no capacity to store the transaction. */ IEEE802154_TRANSACTION_OVERFLOW = 0xf1, /* * The transceiver was in the transmitter enabled state when the * receiver was requested to be enabled. */ IEEE802154_TX_ACTIVE = 0xf2, /* The appropriate key is not available in the ACL. */ IEEE802154_UNAVAILABLE_KEY = 0xf3, /* * A SET/GET request was issued with the identifier of a PIB attribute * that is not supported. */ IEEE802154_UNSUPPORTED_ATTRIBUTE = 0xf4, /* Missing source or destination address or address mode. */ IEEE802154_INVALID_ADDRESS = 0xf5, /* * MLME asked to turn the receiver on, but the on time duration is too * big compared to the macBeaconOrder. */ IEEE802154_ON_TIME_TOO_LONG = 0xf6, /* * MLME asaked to turn the receiver on, but the request was delayed for * too long before getting processed. */ IEEE802154_PAST_TIME = 0xf7, /* * The StartTime parameter is nonzero, and the MLME is not currently * tracking the beacon of the coordinator through which it is * associated. */ IEEE802154_TRACKING_OFF = 0xf8, /* * The index inside the hierarchical values in PIBAttribute is out of * range. */ IEEE802154_INVALID_INDEX = 0xf9, /* * The number of PAN descriptors discovered during a scan has been * reached. */ IEEE802154_LIMIT_REACHED = 0xfa, /* * The PIBAttribute parameter specifies an attribute that is a read-only * attribute. */ IEEE802154_READ_ONLY = 0xfb, /* * A request to perform a scan operation failed because the MLME was * in the process of performing a previously initiated scan operation. */ IEEE802154_SCAN_IN_PROGRESS = 0xfc, /* The outgoing superframe overlaps the incoming superframe. */ IEEE802154_SUPERFRAME_OVERLAP = 0xfd, /* Any other error situation. */ IEEE802154_SYSTEM_ERROR = 0xff, }; /** * enum ieee802154_filtering_level - Filtering levels applicable to a PHY * * @IEEE802154_FILTERING_NONE: No filtering at all, what is received is * forwarded to the softMAC * @IEEE802154_FILTERING_1_FCS: First filtering level, frames with an invalid * FCS should be dropped * @IEEE802154_FILTERING_2_PROMISCUOUS: Second filtering level, promiscuous * mode as described in the spec, identical in terms of filtering to the * level one on PHY side, but at the MAC level the frame should be * forwarded to the upper layer directly * @IEEE802154_FILTERING_3_SCAN: Third filtering level, scan related, where * only beacons must be processed, all remaining traffic gets dropped * @IEEE802154_FILTERING_4_FRAME_FIELDS: Fourth filtering level actually * enforcing the validity of the content of the frame with various checks */ enum ieee802154_filtering_level { IEEE802154_FILTERING_NONE, IEEE802154_FILTERING_1_FCS, IEEE802154_FILTERING_2_PROMISCUOUS, IEEE802154_FILTERING_3_SCAN, IEEE802154_FILTERING_4_FRAME_FIELDS, }; /* frame control handling */ #define IEEE802154_FCTL_FTYPE 0x0003 #define IEEE802154_FCTL_ACKREQ 0x0020 #define IEEE802154_FCTL_SECEN 0x0004 #define IEEE802154_FCTL_INTRA_PAN 0x0040 #define IEEE802154_FCTL_DADDR 0x0c00 #define IEEE802154_FCTL_SADDR 0xc000 #define IEEE802154_FTYPE_DATA 0x0001 #define IEEE802154_FCTL_ADDR_NONE 0x0000 #define IEEE802154_FCTL_DADDR_SHORT 0x0800 #define IEEE802154_FCTL_DADDR_EXTENDED 0x0c00 #define IEEE802154_FCTL_SADDR_SHORT 0x8000 #define IEEE802154_FCTL_SADDR_EXTENDED 0xc000 /* * ieee802154_is_data - check if type is IEEE802154_FTYPE_DATA * @fc: frame control bytes in little-endian byteorder */ static inline int ieee802154_is_data(__le16 fc) { return (fc & cpu_to_le16(IEEE802154_FCTL_FTYPE)) == cpu_to_le16(IEEE802154_FTYPE_DATA); } /** * ieee802154_is_secen - check if Security bit is set * @fc: frame control bytes in little-endian byteorder */ static inline bool ieee802154_is_secen(__le16 fc) { return fc & cpu_to_le16(IEEE802154_FCTL_SECEN); } /** * ieee802154_is_ackreq - check if acknowledgment request bit is set * @fc: frame control bytes in little-endian byteorder */ static inline bool ieee802154_is_ackreq(__le16 fc) { return fc & cpu_to_le16(IEEE802154_FCTL_ACKREQ); } /** * ieee802154_is_intra_pan - check if intra pan id communication * @fc: frame control bytes in little-endian byteorder */ static inline bool ieee802154_is_intra_pan(__le16 fc) { return fc & cpu_to_le16(IEEE802154_FCTL_INTRA_PAN); } /* * ieee802154_daddr_mode - get daddr mode from fc * @fc: frame control bytes in little-endian byteorder */ static inline __le16 ieee802154_daddr_mode(__le16 fc) { return fc & cpu_to_le16(IEEE802154_FCTL_DADDR); } /* * ieee802154_saddr_mode - get saddr mode from fc * @fc: frame control bytes in little-endian byteorder */ static inline __le16 ieee802154_saddr_mode(__le16 fc) { return fc & cpu_to_le16(IEEE802154_FCTL_SADDR); } /** * ieee802154_is_valid_psdu_len - check if psdu len is valid * available lengths: * 0-4 Reserved * 5 MPDU (Acknowledgment) * 6-8 Reserved * 9-127 MPDU * * @len: psdu len with (MHR + payload + MFR) */ static inline bool ieee802154_is_valid_psdu_len(u8 len) { return (len == IEEE802154_ACK_PSDU_LEN || (len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU)); } /** * ieee802154_is_valid_extended_unicast_addr - check if extended addr is valid * @addr: extended addr to check */ static inline bool ieee802154_is_valid_extended_unicast_addr(__le64 addr) { /* Bail out if the address is all zero, or if the group * address bit is set. */ return ((addr != cpu_to_le64(0x0000000000000000ULL)) && !(addr & cpu_to_le64(0x0100000000000000ULL))); } /** * ieee802154_is_broadcast_short_addr - check if short addr is broadcast * @addr: short addr to check */ static inline bool ieee802154_is_broadcast_short_addr(__le16 addr) { return (addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)); } /** * ieee802154_is_unspec_short_addr - check if short addr is unspecified * @addr: short addr to check */ static inline bool ieee802154_is_unspec_short_addr(__le16 addr) { return (addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC)); } /** * ieee802154_is_valid_src_short_addr - check if source short address is valid * @addr: short addr to check */ static inline bool ieee802154_is_valid_src_short_addr(__le16 addr) { return !(ieee802154_is_broadcast_short_addr(addr) || ieee802154_is_unspec_short_addr(addr)); } /** * ieee802154_random_extended_addr - generates a random extended address * @addr: extended addr pointer to place the random address */ static inline void ieee802154_random_extended_addr(__le64 *addr) { get_random_bytes(addr, IEEE802154_EXTENDED_ADDR_LEN); /* clear the group bit, and set the locally administered bit */ ((u8 *)addr)[IEEE802154_EXTENDED_ADDR_LEN - 1] &= ~0x01; ((u8 *)addr)[IEEE802154_EXTENDED_ADDR_LEN - 1] |= 0x02; } #endif /* LINUX_IEEE802154_H */