| /* |
| * |
| * BlueZ - Bluetooth protocol stack for Linux |
| * |
| * Copyright (C) 2010 Nokia Corporation |
| * Copyright (C) 2010 Marcel Holtmann <marcel@holtmann.org> |
| * |
| * |
| * 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 |
| * |
| */ |
| |
| #include "src/shared/crypto.h" |
| |
| /* Len of signature in write signed packet */ |
| #define ATT_SIGNATURE_LEN 12 |
| |
| /* 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 |
| |
| #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; |
| }; |
| |
| 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); |
| uint16_t enc_signed_write_cmd(uint16_t handle, |
| const uint8_t *value, size_t vlen, |
| struct bt_crypto *crypto, |
| const uint8_t csrk[16], |
| uint32_t sign_cnt, |
| uint8_t *pdu, size_t len); |
| uint16_t dec_signed_write_cmd(const uint8_t *pdu, size_t len, |
| uint16_t *handle, |
| uint8_t *value, size_t *vlen, |
| uint8_t signature[12]); |
| 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); |
| 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_req(const uint8_t *pdu, size_t len, uint16_t *handle, |
| uint16_t *offset, uint8_t *value, size_t *vlen); |
| uint16_t enc_prep_write_resp(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_req(const uint8_t *pdu, size_t len, uint8_t *flags); |
| uint16_t enc_exec_write_resp(uint8_t *pdu); |
| uint16_t dec_exec_write_resp(const uint8_t *pdu, size_t len); |
