/* * * BlueZ - Bluetooth protocol stack for Linux * * Copyright (C) 2010 Nokia Corporation * Copyright (C) 2010 Marcel Holtmann * * * 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 St, Fifth Floor, Boston, MA 02110-1301 USA * */ /* Attribute Protocol Opcodes */ #define ATT_OP_ERROR 0x01 #define ATT_OP_MTU_REQ 0x02 #define ATT_OP_MTU_RESP 0x03 #define ATT_OP_FIND_INFO_REQ 0x04 #define ATT_OP_FIND_INFO_RESP 0x05 #define ATT_OP_FIND_BY_TYPE_REQ 0x06 #define ATT_OP_FIND_BY_TYPE_RESP 0x07 #define ATT_OP_READ_BY_TYPE_REQ 0x08 #define ATT_OP_READ_BY_TYPE_RESP 0x09 #define ATT_OP_READ_REQ 0x0A #define ATT_OP_READ_RESP 0x0B #define ATT_OP_READ_BLOB_REQ 0x0C #define ATT_OP_READ_BLOB_RESP 0x0D #define ATT_OP_READ_MULTI_REQ 0x0E #define ATT_OP_READ_MULTI_RESP 0x0F #define ATT_OP_READ_BY_GROUP_REQ 0x10 #define ATT_OP_READ_BY_GROUP_RESP 0x11 #define ATT_OP_WRITE_REQ 0x12 #define ATT_OP_WRITE_RESP 0x13 #define ATT_OP_WRITE_CMD 0x52 #define ATT_OP_PREP_WRITE_REQ 0x16 #define ATT_OP_PREP_WRITE_RESP 0x17 #define ATT_OP_EXEC_WRITE_REQ 0x18 #define ATT_OP_EXEC_WRITE_RESP 0x19 #define ATT_OP_HANDLE_NOTIFY 0x1B #define ATT_OP_HANDLE_IND 0x1D #define ATT_OP_HANDLE_CNF 0x1E #define ATT_OP_SIGNED_WRITE_CMD 0xD2 /* Error codes for Error response PDU */ #define ATT_ECODE_INVALID_HANDLE 0x01 #define ATT_ECODE_READ_NOT_PERM 0x02 #define ATT_ECODE_WRITE_NOT_PERM 0x03 #define ATT_ECODE_INVALID_PDU 0x04 #define ATT_ECODE_AUTHENTICATION 0x05 #define ATT_ECODE_REQ_NOT_SUPP 0x06 #define ATT_ECODE_INVALID_OFFSET 0x07 #define ATT_ECODE_AUTHORIZATION 0x08 #define ATT_ECODE_PREP_QUEUE_FULL 0x09 #define ATT_ECODE_ATTR_NOT_FOUND 0x0A #define ATT_ECODE_ATTR_NOT_LONG 0x0B #define ATT_ECODE_INSUFF_ENCR_KEY_SIZE 0x0C #define ATT_ECODE_INVAL_ATTR_VALUE_LEN 0x0D #define ATT_ECODE_UNLIKELY 0x0E #define ATT_ECODE_INSUFF_ENC 0x0F #define ATT_ECODE_UNSUPP_GRP_TYPE 0x10 #define ATT_ECODE_INSUFF_RESOURCES 0x11 /* Application error */ #define ATT_ECODE_IO 0x80 #define ATT_ECODE_TIMEOUT 0x81 #define ATT_ECODE_ABORTED 0x82 /* Characteristic Property bit field */ #define ATT_CHAR_PROPER_BROADCAST 0x01 #define ATT_CHAR_PROPER_READ 0x02 #define ATT_CHAR_PROPER_WRITE_WITHOUT_RESP 0x04 #define ATT_CHAR_PROPER_WRITE 0x08 #define ATT_CHAR_PROPER_NOTIFY 0x10 #define ATT_CHAR_PROPER_INDICATE 0x20 #define ATT_CHAR_PROPER_AUTH 0x40 #define ATT_CHAR_PROPER_EXT_PROPER 0x80 #define ATT_MAX_VALUE_LEN 512 #define ATT_DEFAULT_L2CAP_MTU 48 #define ATT_DEFAULT_LE_MTU 23 #define ATT_CID 4 #define ATT_PSM 31 /* Flags for Execute Write Request Operation */ #define ATT_CANCEL_ALL_PREP_WRITES 0x00 #define ATT_WRITE_ALL_PREP_WRITES 0x01 /* Find Information Response Formats */ #define ATT_FIND_INFO_RESP_FMT_16BIT 0x01 #define ATT_FIND_INFO_RESP_FMT_128BIT 0x02 struct att_data_list { uint16_t num; uint16_t len; uint8_t **data; }; struct att_range { uint16_t start; uint16_t end; }; /* These functions do byte conversion */ static inline uint8_t att_get_u8(const void *ptr) { const uint8_t *u8_ptr = ptr; return bt_get_unaligned(u8_ptr); } static inline uint16_t att_get_u16(const void *ptr) { const uint16_t *u16_ptr = ptr; return btohs(bt_get_unaligned(u16_ptr)); } static inline uint32_t att_get_u32(const void *ptr) { const uint32_t *u32_ptr = ptr; return btohl(bt_get_unaligned(u32_ptr)); } static inline uint128_t att_get_u128(const void *ptr) { const uint128_t *u128_ptr = ptr; uint128_t dst; btoh128(u128_ptr, &dst); return dst; } static inline void att_put_u8(uint8_t src, void *dst) { bt_put_unaligned(src, (uint8_t *) dst); } static inline void att_put_u16(uint16_t src, void *dst) { bt_put_unaligned(htobs(src), (uint16_t *) dst); } static inline void att_put_u32(uint32_t src, void *dst) { bt_put_unaligned(htobl(src), (uint32_t *) dst); } static inline void att_put_u128(uint128_t src, void *dst) { uint128_t *d128 = dst; htob128(&src, d128); } static inline void att_put_uuid16(bt_uuid_t src, void *dst) { att_put_u16(src.value.u16, dst); } static inline void att_put_uuid128(bt_uuid_t src, void *dst) { att_put_u128(src.value.u128, dst); } static inline void att_put_uuid(bt_uuid_t src, void *dst) { if (src.type == BT_UUID16) att_put_uuid16(src, dst); else att_put_uuid128(src, dst); } static inline bt_uuid_t att_get_uuid16(const void *ptr) { bt_uuid_t uuid; bt_uuid16_create(&uuid, att_get_u16(ptr)); return uuid; } static inline bt_uuid_t att_get_uuid128(const void *ptr) { bt_uuid_t uuid; uint128_t value; value = att_get_u128(ptr); bt_uuid128_create(&uuid, value); return uuid; } struct att_data_list *att_data_list_alloc(uint16_t num, uint16_t len); void att_data_list_free(struct att_data_list *list); const char *att_ecode2str(uint8_t status); uint16_t enc_read_by_grp_req(uint16_t start, uint16_t end, bt_uuid_t *uuid, uint8_t *pdu, size_t len); uint16_t dec_read_by_grp_req(const uint8_t *pdu, size_t len, uint16_t *start, uint16_t *end, bt_uuid_t *uuid); uint16_t enc_read_by_grp_resp(struct att_data_list *list, uint8_t *pdu, size_t len); uint16_t enc_find_by_type_req(uint16_t start, uint16_t end, bt_uuid_t *uuid, const uint8_t *value, size_t vlen, uint8_t *pdu, size_t len); uint16_t dec_find_by_type_req(const uint8_t *pdu, size_t len, uint16_t *start, uint16_t *end, bt_uuid_t *uuid, uint8_t *value, size_t *vlen); uint16_t enc_find_by_type_resp(GSList *ranges, uint8_t *pdu, size_t len); GSList *dec_find_by_type_resp(const uint8_t *pdu, size_t len); struct att_data_list *dec_read_by_grp_resp(const uint8_t *pdu, size_t len); uint16_t enc_read_by_type_req(uint16_t start, uint16_t end, bt_uuid_t *uuid, uint8_t *pdu, size_t len); uint16_t dec_read_by_type_req(const uint8_t *pdu, size_t len, uint16_t *start, uint16_t *end, bt_uuid_t *uuid); uint16_t enc_read_by_type_resp(struct att_data_list *list, uint8_t *pdu, size_t len); uint16_t enc_write_cmd(uint16_t handle, const uint8_t *value, size_t vlen, uint8_t *pdu, size_t len); uint16_t dec_write_cmd(const uint8_t *pdu, size_t len, uint16_t *handle, uint8_t *value, size_t *vlen); struct att_data_list *dec_read_by_type_resp(const uint8_t *pdu, size_t len); uint16_t enc_write_req(uint16_t handle, const uint8_t *value, size_t vlen, uint8_t *pdu, size_t len); uint16_t dec_write_req(const uint8_t *pdu, size_t len, uint16_t *handle, uint8_t *value, size_t *vlen); uint16_t enc_write_resp(uint8_t *pdu, size_t len); uint16_t dec_write_resp(const uint8_t *pdu, size_t len); uint16_t enc_read_req(uint16_t handle, uint8_t *pdu, size_t len); uint16_t enc_read_blob_req(uint16_t handle, uint16_t offset, uint8_t *pdu, size_t len); uint16_t dec_read_req(const uint8_t *pdu, size_t len, uint16_t *handle); uint16_t dec_read_blob_req(const uint8_t *pdu, size_t len, uint16_t *handle, uint16_t *offset); uint16_t enc_read_resp(uint8_t *value, size_t vlen, uint8_t *pdu, size_t len); uint16_t enc_read_blob_resp(uint8_t *value, size_t vlen, uint16_t offset, uint8_t *pdu, size_t len); ssize_t dec_read_resp(const uint8_t *pdu, size_t len, uint8_t *value, size_t vlen); uint16_t enc_error_resp(uint8_t opcode, uint16_t handle, uint8_t status, uint8_t *pdu, size_t len); uint16_t enc_find_info_req(uint16_t start, uint16_t end, uint8_t *pdu, size_t len); uint16_t dec_find_info_req(const uint8_t *pdu, size_t len, uint16_t *start, uint16_t *end); uint16_t enc_find_info_resp(uint8_t format, struct att_data_list *list, uint8_t *pdu, size_t len); struct att_data_list *dec_find_info_resp(const uint8_t *pdu, size_t len, uint8_t *format); uint16_t enc_notification(uint16_t handle, uint8_t *value, size_t vlen, uint8_t *pdu, size_t len); uint16_t enc_indication(uint16_t handle, uint8_t *value, size_t vlen, uint8_t *pdu, size_t len); uint16_t dec_indication(const uint8_t *pdu, size_t len, uint16_t *handle, uint8_t *value, size_t vlen); uint16_t enc_confirmation(uint8_t *pdu, size_t len); uint16_t enc_mtu_req(uint16_t mtu, uint8_t *pdu, size_t len); uint16_t dec_mtu_req(const uint8_t *pdu, size_t len, uint16_t *mtu); uint16_t enc_mtu_resp(uint16_t mtu, uint8_t *pdu, size_t len); uint16_t dec_mtu_resp(const uint8_t *pdu, size_t len, uint16_t *mtu); uint16_t enc_prep_write_req(uint16_t handle, uint16_t offset, const uint8_t *value, size_t vlen, uint8_t *pdu, size_t len); uint16_t dec_prep_write_resp(const uint8_t *pdu, size_t len, uint16_t *handle, uint16_t *offset, uint8_t *value, size_t *vlen); uint16_t enc_exec_write_req(uint8_t flags, uint8_t *pdu, size_t len); uint16_t dec_exec_write_resp(const uint8_t *pdu, size_t len);