476 lines
20 KiB
C
476 lines
20 KiB
C
/*
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* Copyright (c) 2016, Yasuyuki Tanaka
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* Copyright (c) 2016, Centre for Development of Advanced Computing (C-DAC).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup sixtop
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* @{
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*/
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/**
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* \file
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* 6top Protocol (6P) Packet Manipulation APIs
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* \author
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* Shalu R <shalur@cdac.in>
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* Lijo Thomas <lijo@cdac.in>
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* Yasuyuki Tanaka <yasuyuki.tanaka@inf.ethz.ch>
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*/
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#ifndef _SIXTOP_6P_PACKET_H_
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#define _SIXTOP_6P_PACKET_H_
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#define SIXP_PKT_VERSION 0x00
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/* typedefs for code readability */
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typedef uint8_t sixp_pkt_version_t;
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typedef uint8_t sixp_pkt_cell_options_t;
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typedef uint8_t sixp_pkt_num_cells_t;
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typedef uint8_t sixp_pkt_reserved_t;
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typedef uint16_t sixp_pkt_metadata_t;
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typedef uint16_t sixp_pkt_max_num_cells_t;
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typedef uint16_t sixp_pkt_offset_t;
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typedef uint32_t sixp_pkt_cell_t;
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typedef uint16_t sixp_pkt_total_num_cells_t;
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/**
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* \brief 6P Message Types
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*/
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typedef enum {
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SIXP_PKT_TYPE_REQUEST = 0x00, /**< 6P Request */
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SIXP_PKT_TYPE_RESPONSE = 0x01, /**< 6P Response */
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SIXP_PKT_TYPE_CONFIRMATION = 0x02, /**< 6P Confirmation */
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SIXP_PKT_TYPE_RESERVED = 0x03, /**< Reserved */
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} sixp_pkt_type_t;
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/**
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* \brief 6P Command Identifiers
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*/
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typedef enum {
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SIXP_PKT_CMD_ADD = 0x01, /**< CMD_ADD */
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SIXP_PKT_CMD_DELETE = 0x02, /**< CMD_DELETE */
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SIXP_PKT_CMD_RELOCATE = 0x03, /**< CMD_STATUS */
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SIXP_PKT_CMD_COUNT = 0x04, /**< CMD_STATUS */
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SIXP_PKT_CMD_LIST = 0x05, /**< CMD_LIST */
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SIXP_PKT_CMD_SIGNAL = 0x06, /**< CMD_SIGNAL */
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SIXP_PKT_CMD_CLEAR = 0x07, /**< CMD_CLEAR */
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SIXP_PKT_CMD_UNAVAILABLE = 0xff, /**< for internal use */
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} sixp_pkt_cmd_t;
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/**
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* \brief 6P Return Codes
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*/
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typedef enum {
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SIXP_PKT_RC_SUCCESS = 0x00, /**< RC_SUCCESS */
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SIXP_PKT_RC_EOL = 0x01, /**< RC_EOL */
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SIXP_PKT_RC_ERR = 0x02, /**< RC_ERR */
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SIXP_PKT_RC_RESET = 0x03, /**< RC_RESET */
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SIXP_PKT_RC_ERR_VERSION = 0x04, /**< RC_ERR_VERSION */
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SIXP_PKT_RC_ERR_SFID = 0x05, /**< RC_ERR_SFID */
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SIXP_PKT_RC_ERR_SEQNUM = 0x06, /**< RC_ERR_SEQNUM */
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SIXP_PKT_RC_ERR_CELLLIST = 0x07, /**< RC_ERR_CELLLIST */
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SIXP_PKT_RC_ERR_BUSY = 0x08, /**< RC_ERR_BUSY */
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SIXP_PKT_RC_ERR_LOCKED = 0x09, /**< RC_ERR_LOCKED */
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} sixp_pkt_rc_t;
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/**
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* \brief 6P Codes integrating Command IDs and Return Codes
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*/
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typedef union {
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sixp_pkt_cmd_t cmd; /**< 6P Command Identifier */
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sixp_pkt_rc_t rc; /**< 6P Return Code */
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uint8_t value; /**< 8-bit unsigned integer value */
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} sixp_pkt_code_t;
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/**
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* \brief 6P Cell Options
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*/
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typedef enum {
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SIXP_PKT_CELL_OPTION_TX = 0x01, /**< TX Cell */
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SIXP_PKT_CELL_OPTION_RX = 0x02, /**< RX Cell */
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SIXP_PKT_CELL_OPTION_SHARED = 0x04 /**< SHARED Cell */
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} sixp_pkt_cell_option_t;
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/**
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* \brief 6top IE Structure
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*/
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typedef struct {
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sixp_pkt_version_t version; /**< Version */
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sixp_pkt_type_t type; /**< Type */
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sixp_pkt_code_t code; /**< Code */
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uint8_t sfid; /**< SFID */
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uint8_t seqno; /**< SeqNum */
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const uint8_t *body; /**< Other Fields... */
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uint16_t body_len; /**< The length of Other Fields */
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} sixp_pkt_t;
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/**
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* \brief Write Metadata into "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param metadata Metadata to write
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* \param body The pointer to "Other Fields" in a buffer
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_metadata(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_metadata_t metadata,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read Metadata stored in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param metadata The pointer to a buffer to store Metadata in
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* \param body The pointer to the buffer having "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_metadata(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_metadata_t *metadata,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write CellOptions in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param cell_options "CellOptions" to write
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* \param body The pointer to buffer having "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_cell_options(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_cell_options_t cell_options,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read CellOptions in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param cell_options The pointer to buffer to store CellOptions in
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_cell_options(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_cell_options_t *cell_options,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write NumCells in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param num_cells "NumCells" to write
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_num_cells(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_num_cells_t num_cells,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read NumCells in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param num_cells The pointer to buffer to store NumCells in
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_num_cells(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_num_cells_t *num_cells,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write Reserved in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param reserved "Reserved" to write
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_reserved(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_reserved_t reserved,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read Reserved in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param reserved The pointer to buffer to store Reserved in
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_reserved(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_reserved_t *reserved,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write Offset in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param offset "Offset" to write
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_offset(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_offset_t offset,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read Offset in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param offset The pointer to buffer to store Offset in
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_offset(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_offset_t *offset,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write MaxNumCells in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param max_num_cells "MaxNumCells" to write
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_max_num_cells(sixp_pkt_type_t type,
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sixp_pkt_code_t code,
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sixp_pkt_max_num_cells_t max_num_cells,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read MaxNumCells in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param max_num_cells The pointer to buffer to store MaxNumCells in
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_max_num_cells(sixp_pkt_type_t type,
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sixp_pkt_code_t code,
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sixp_pkt_max_num_cells_t *max_num_cells,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write CellList in "Other Fields" of 6P packet
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* \note "offset" is specified by index in CellList
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param cell_list The pointer to "CellList" to write
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* \param cell_list_len Length to write
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* \param offset Offset in the "CellList" field to start writing
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_cell_list(sixp_pkt_type_t type, sixp_pkt_code_t code,
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const uint8_t *cell_list,
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uint16_t cell_list_len,
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uint16_t offset,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read CellList in "Other Fields" of 6P packet
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* \note If you want only the length of CellList, you can set null to cell_list.
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param cell_list The double pointer to store the starting address of CellList
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* \param cell_list_len Pointer to store the length of CellList
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_cell_list(sixp_pkt_type_t type, sixp_pkt_code_t code,
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const uint8_t **cell_list,
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sixp_pkt_offset_t *cell_list_len,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write RelCellList in "Other Fields" of 6P packet
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* \note "offset" is specified by index in RelCellList
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param rel_cell_list The pointer to "RelCellList" to write
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* \param rel_cell_list_len Length to write
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* \param offset Offset in the "RelCellList" field to start writing
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_rel_cell_list(sixp_pkt_type_t type, sixp_pkt_code_t code,
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const uint8_t *rel_cell_list,
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uint16_t rel_cell_list_len,
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uint16_t offset,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read RelCellList in "Other Fields" of 6P packet
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* \note If you want only the length of RelCellList, you can set null to
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* rel_cell_list.
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param rel_cell_list The double pointer to store the starting address of
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* RelCellList
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* \param rel_cell_list_len Pointer to store the length of a returned
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* RelCellList
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_rel_cell_list(sixp_pkt_type_t type, sixp_pkt_code_t code,
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const uint8_t **rel_cell_list,
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sixp_pkt_offset_t *rel_cell_list_len,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write CandCellList in "Other Fields" of 6P packet
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* \note "offset" is specified by index in CandCellList
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param cand_cell_list The pointer to "CandCellList" to write
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* \param cand_cell_list_len Length to write
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* \param offset Offset in the "CandCellList" field to start writing
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_cand_cell_list(sixp_pkt_type_t type, sixp_pkt_code_t code,
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const uint8_t *cand_cell_list,
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uint16_t cand_cell_list_len,
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uint16_t offset,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read CandCellList in "Other Fields" of 6P packet
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* \note If you want only the length of CandCellList, you can set null to
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* cell_list.
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param cand_cell_list The double pointer to store the starting address of
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* CandCellList
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* \param cand_cell_list_len Pointer to store the length of CandCellList
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_cand_cell_list(sixp_pkt_type_t type, sixp_pkt_code_t code,
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const uint8_t **cand_cell_list,
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sixp_pkt_offset_t *cand_cell_list_len,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write TotalNumCells in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param total_num_cells "TotalNumCells" to write
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_total_num_cells(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_total_num_cells_t total_num_cells,
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uint8_t *body, uint16_t body_len);
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/**
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* \brief Read TotalNumCells in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param total_num_cells The pointer to buffer to store TotalNumCells in
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_total_num_cells(sixp_pkt_type_t type, sixp_pkt_code_t code,
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sixp_pkt_total_num_cells_t *total_num_cells,
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const uint8_t *body, uint16_t body_len);
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/**
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* \brief Write Payload in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param payload "Payload" to write
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* \param payload_len The length of "Payload" to write
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_set_payload(sixp_pkt_type_t type, sixp_pkt_code_t code,
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const uint8_t *payload, uint16_t payload_len,
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uint8_t *body, uint16_t body_len);
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|
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/**
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* \brief Read Payload in "Other Fields" of 6P packet
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* \param type 6P Message Type
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* \param code 6P Command Identifier or Return Code
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* \param buf The pointer to buffer to store "Payload" in
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* \param buf_len The length of buf
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* \param body The pointer to buffer pointing to "Other Fields"
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* \param body_len The length of body, typically "Other Fields" length
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_get_payload(sixp_pkt_type_t type, sixp_pkt_code_t code,
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uint8_t *buf, uint16_t buf_len,
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const uint8_t *body, uint16_t body_len);
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|
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/**
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* \brief Parse a 6P packet
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* \param buf The pointer to a buffer pointing 6top IE Content
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* \param len The length of the buffer
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* \param pkt The pointer to a sixp_pkt_t structure to store packet info
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_parse(const uint8_t *buf, uint16_t len,
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sixp_pkt_t *pkt);
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|
|
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/**
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* \brief Create a 6P packet
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* \param type 6P Message Type
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* \param code 6P Message Code, Command Identifier or Return Code
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* \param sfid Scheduling Function Identifier
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* \param seqno Sequence Number
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* \param body The pointer to "Other Fields" in a buffer
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* \param body_len The length of body, typically "Other Fields" length
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* \param pkt The pointer to a sixp_pkt_t structure to store packet info
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* (option)
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* \return 0 on success, -1 on failure
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*/
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int sixp_pkt_create(sixp_pkt_type_t type, sixp_pkt_code_t code,
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uint8_t sfid, uint8_t seqno,
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const uint8_t *body, uint16_t body_len,
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sixp_pkt_t *pkt);
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#endif /* !_SIXP_PKT_H_ */
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/** @} */
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