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/* packet-ieee802154.h
*
* IEEE 802.15.4 Dissectors for Wireshark
* By Owen Kirby <osk@exegin.com>
* Copyright 2007 Exegin Technologies Limited
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef PACKET_IEEE802154_H
#define PACKET_IEEE802154_H
/* Protocol Abbreviation */
#define IEEE802154_PROTOABBREV_WPAN "wpan"
#define IEEE802154_PROTOABBREV_WPAN_BEACON "wpan.beacon"
/* PANID dissector list is for Decode-As and stateful dissection only. */
#define IEEE802154_PROTOABBREV_WPAN_PANID "wpan.panid"
/* Packet Overhead from MAC header + footer (excluding addressing) */
#define IEEE802154_MAX_FRAME_LEN 127
#define IEEE802154_FCS_LEN 2
/* Command Frame Identifier Types Definions */
#define IEEE802154_CMD_ASRQ 0x01
#define IEEE802154_CMD_ASRSP 0x02
#define IEEE802154_CMD_DISAS 0x03
#define IEEE802154_CMD_DATA_RQ 0x04
#define IEEE802154_CMD_PANID_ERR 0x05
#define IEEE802154_CMD_ORPH_NOTIF 0x06
#define IEEE802154_CMD_BCN_RQ 0x07
#define IEEE802154_CMD_COORD_REAL 0x08
#define IEEE802154_CMD_GTS_REQ 0x09
#define IEEE802145_CMD_MAX_ID 0x09
/* Definitions for Association Response Command */
#define IEEE802154_CMD_ASRSP_AS_SUCCESS 0x00
#define IEEE802154_CMD_ASRSP_PAN_FULL 0x01
#define IEEE802154_CMD_ASRSP_PAN_DENIED 0x02
/* Bit Masks for Capability Information Field
Included in Association Req. command */
#define IEEE802154_CMD_CINFO_ALT_PAN_COORD 0x01
#define IEEE802154_CMD_CINFO_DEVICE_TYPE 0x02
#define IEEE802154_CMD_CINFO_POWER_SRC 0x04
#define IEEE802154_CMD_CINFO_IDLE_RX 0x08
#define IEEE802154_CMD_CINFO_SEC_CAPABLE 0x40
#define IEEE802154_CMD_CINFO_ALLOC_ADDR 0x80
#define IEEE802154_CMD_GTS_REQ_LEN 0x0F
#define IEEE802154_CMD_GTS_REQ_DIR 0x10
#define IEEE802154_CMD_GTS_REQ_TYPE 0x20
/* Bit masks & shifts for various beacon fields */
#define IEEE802154_BEACON_ORDER_MASK 0x000F
#define IEEE802154_SUPERFRAME_ORDER_MASK 0x00F0
#define IEEE802154_SUPERFRAME_CAP_MASK 0x0F00
#define IEEE802154_BATT_EXTENSION_MASK 0x1000
#define IEEE802154_SUPERFRAME_COORD_MASK 0x4000
#define IEEE802154_ASSOC_PERMIT_MASK 0x8000
#define IEEE802154_SUPERFRAME_ORDER_SHIFT 4
#define IEEE802154_SUPERFRAME_CAP_SHIFT 8
#define IEEE802154_GTS_COUNT_MASK 0x07
#define IEEE802154_GTS_PERMIT_MASK 0x80
#define IEEE802154_GTS_DIRECTION_SLOT(i) (0x01<<(i))
#define IEEE802154_GTS_MAX_SLOTS 7
#define IEEE802154_GTS_DIRECTION_SLOT1 0x01
#define IEEE802154_GTS_DIRECTION_SLOT2 0x02
#define IEEE802154_GTS_DIRECTION_SLOT3 0x04
#define IEEE802154_GTS_DIRECTION_SLOT4 0x08
#define IEEE802154_GTS_DIRECTION_SLOT5 0x10
#define IEEE802154_GTS_DIRECTION_SLOT6 0x20
#define IEEE802154_GTS_DIRECTION_SLOT7 0x40
#define IEEE802154_GTS_SLOT_MASK 0x0F
#define IEEE802154_GTS_LENGTH_MASK 0xF0
#define IEEE802154_GTS_LENGTH_SHIFT 4
#define IEEE802154_PENDADDR_SHORT_MASK 0x07
#define IEEE802154_PENDADDR_LONG_MASK 0x70
#define IEEE802154_PENDADDR_LONG_SHIFT 4
#define IEEE802154_SUPERFRAME_DURATION (IEEE802154_BASE_SLOT_DURATION * IEEE802154_SUPERFRAME_SLOTS)
#define IEEE802154_BASE_SLOT_DURATION 60
#define IEEE802154_SUPERFRAME_SLOTS 16
/* Bit-masks for the FCF */
#define IEEE802154_FCF_TYPE_MASK 0x0007 /* Frame Type Mask */
#define IEEE802154_FCF_SEC_EN 0x0008
#define IEEE802154_FCF_FRAME_PND 0x0010
#define IEEE802154_FCF_ACK_REQ 0x0020
#define IEEE802154_FCF_INTRA_PAN 0x0040 /* known as PAN ID Compression in IEEE 802.15.4-2006 */
#define IEEE802154_FCF_DADDR_MASK 0x0C00 /* destination addressing mask */
#define IEEE802154_FCF_VERSION 0x3000
#define IEEE802154_FCF_SADDR_MASK 0xC000 /* source addressing mask */
/* Frame Type Definitions */
#define IEEE802154_FCF_BEACON 0x0000 /* Beacon Frame */
#define IEEE802154_FCF_DATA 0x0001 /* Data Frame */
#define IEEE802154_FCF_ACK 0x0002 /* Acknowlegement Frame */
#define IEEE802154_FCF_CMD 0x0003 /* Command Frame */
/* Frame version definitions. */
#define IEEE802154_VERSION_2003 0x0
#define IEEE802154_VERSION_2006 0x1
/* Address Mode Definitions */
#define IEEE802154_FCF_ADDR_NONE 0x0000
#define IEEE802154_FCF_ADDR_SHORT 0x0002
#define IEEE802154_FCF_ADDR_EXT 0x0003
/* Bit-masks for CC24xx style FCS */
#define IEEE802154_CC24xx_CORRELATION 0x7F00
#define IEEE802154_CC24xx_CRC_OK 0x8000
#define IEEE802154_CC24xx_RSSI 0x00FF
/* Special IEEE802.15.4 Addresses */
#define IEEE802154_NO_ADDR16 0xFFFE
#define IEEE802154_BCAST_ADDR 0xFFFF
#define IEEE802154_BCAST_PAN 0xFFFF
/* Bit mask for PHY length field */
#define IEEE802154_PHY_LENGTH_MASK 0x7f
/* Auxiliary Security Header */
#define IEEE802154_AUX_SEC_LEVEL_MASK 0x07 /* Security Level */
#define IEEE802154_AUX_KEY_ID_MODE_MASK 0x18 /* Key Identifier Mode */
#define IEEE802154_AUX_KEY_ID_MODE_SHIFT 3
#define IEEE802154_AUX_KEY_RESERVED_MASK 0xE0 /* Reserved */
typedef enum {
SECURITY_LEVEL_NONE = 0x00,
SECURITY_LEVEL_MIC_32 = 0x01,
SECURITY_LEVEL_MIC_64 = 0x02,
SECURITY_LEVEL_MIC_128 = 0x03,
SECURITY_LEVEL_ENC = 0x04,
SECURITY_LEVEL_ENC_MIC_32 = 0x05,
SECURITY_LEVEL_ENC_MIC_64 = 0x06,
SECURITY_LEVEL_ENC_MIC_128 = 0x07
} ieee802154_security_level;
typedef enum {
KEY_ID_MODE_IMPLICIT = 0x00,
KEY_ID_MODE_KEY_INDEX = 0x01,
KEY_ID_MODE_KEY_EXPLICIT_4 = 0x02,
KEY_ID_MODE_KEY_EXPLICIT_8 = 0x03
} ieee802154_key_id_mode;
/* IEEE 802.15.4 cipher block size. */
#define IEEE802154_CIPHER_SIZE 16
/* Macro to compute the MIC length. */
#define IEEE802154_MIC_LENGTH(_level_) ((0x2 << ((_level_) & 0x3)) & ~0x3)
/* Macro to check for payload encryption. */
#define IEEE802154_IS_ENCRYPTED(_level_) ((_level_) & 0x4)
/* Structure containing information regarding all necessary packet fields. */
typedef struct {
/* Frame control field. */
gint32 version;
gint32 frame_type;
gint32 dst_addr_mode;
gint32 src_addr_mode;
gboolean security_enable;
gboolean frame_pending;
gboolean ack_request;
gboolean intra_pan;
guint8 seqno;
/* Addressing Info. */
guint16 dst_pan;
guint16 src_pan;
guint16 dst16;
guint64 dst64;
guint16 src16;
guint64 src64;
/* Security Info. */
ieee802154_security_level security_level;
ieee802154_key_id_mode key_id_mode;
guint32 frame_counter;
guint8 key_sequence_counter; /* Only for 802.15.4-2003 security suite with encryption */
union {
guint32 addr32;
guint64 addr64;
} key_source;
guint8 key_index;
/* Command ID (only if frame_type == 0x3) */
guint8 command_id;
GHashTable *short_table;
} ieee802154_packet;
/* Structure for two-way mapping table */
typedef struct {
GHashTable *long_table;
GHashTable *short_table;
} ieee802154_map_tab_t;
/* Key used by the short address hash table. */
typedef struct {
guint16 pan;
guint16 addr;
} ieee802154_short_addr;
/* Key used by the long address hash table. */
typedef struct {
guint64 addr;
} ieee802154_long_addr;
/* A mapping record for a frame, pointed to by hash table */
typedef struct {
const char *proto; /* name of protocol that created this record */
guint start_fnum;
guint end_fnum;
guint64 addr64;
/*guint32 frame_counter; TODO for frame counter sequence checks. */
} ieee802154_map_rec;
#define IEEE802154_USER_MAPPING 0
typedef struct {
guint16 src_pan;
guint16 src16;
guint16 dst16;
ieee802154_map_rec *map_rec;
} ieee802154_hints_t;
/* Short to Extended Address Prototypes */
extern ieee802154_map_rec *ieee802154_addr_update(ieee802154_map_tab_t *, guint16, guint16, guint64,
const char *, guint);
extern guint ieee802154_short_addr_hash(gconstpointer);
extern guint ieee802154_long_addr_hash(gconstpointer key);
extern gboolean ieee802154_short_addr_equal(gconstpointer, gconstpointer);
extern gboolean ieee802154_long_addr_equal(gconstpointer a, gconstpointer b);
extern gboolean ieee802154_short_addr_invalidate(guint16, guint16, guint);
extern gboolean ieee802154_long_addr_invalidate(guint64, guint);
#endif /* PACKET_IEEE802154_H */
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