deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Add support for IEEE 802.15.4e Information Elements (IEs). All IEs used by TSCH are currently included.

Browse source
This commit is contained in:
Simon Duquennoy 2015-09-21 18:49:31 +02:00
parent 5cf9871d5b
commit ecba49c282
5 changed files with 1088 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

120
core/net/mac/frame802154e-ie.h Normal file
View file

@ -0,0 +1,120 @@
/*
* Copyright (c) 2015, SICS Swedish ICT.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* IEEE 802.15.4e Information Element (IE) creation and parsing.
* \author
* Simon Duquennoy <simonduq@sics.se>
*/
#ifndef FRAME_802154E_H
#define FRAME_802154E_H
#include "contiki.h"
/* We need definitions from tsch-private.h for TSCH-specific information elements */
#include "net/mac/tsch/tsch-private.h"
#define FRAME802154E_IE_MAX_LINKS 4
/* Structures used for the Slotframe and Links information element */
struct tsch_slotframe_and_links_link {
uint16_t timeslot;
uint16_t channel_offset;
uint8_t link_options;
};
struct tsch_slotframe_and_links {
uint8_t num_slotframes; /* We support only 0 or 1 slotframe in this IE */
uint8_t slotframe_handle;
uint16_t slotframe_size;
uint8_t num_links;
struct tsch_slotframe_and_links_link links[FRAME802154E_IE_MAX_LINKS];
};
/* The information elements that we currently support */
struct ieee802154_ies {
/* Header IEs */
int16_t ie_time_correction;
uint8_t ie_is_nack;
/* Payload MLME */
uint8_t ie_payload_ie_offset;
uint16_t ie_mlme_len;
/* Payload Short MLME IEs */
uint8_t ie_tsch_synchronization_offset;
struct asn_t ie_asn;
uint8_t ie_join_priority;
uint8_t ie_tsch_timeslot_id;
uint16_t ie_tsch_timeslot[tsch_ts_elements_count];
struct tsch_slotframe_and_links ie_tsch_slotframe_and_link;
/* Payload Long MLME IEs */
uint8_t ie_channel_hopping_sequence_id;
/* We include and parse only the sequence len and list and omit unused fields */
uint16_t ie_hopping_sequence_len;
uint8_t ie_hopping_sequence_list[TSCH_HOPPING_SEQUENCE_MAX_LEN];
};
/** Insert various Information Elements **/
/* Header IE. ACK/NACK time correction. Used in enhanced ACKs */
int frame80215e_create_ie_header_ack_nack_time_correction(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* Header IE. List termination 1 (Signals the end of the Header IEs when
* followed by payload IEs) */
int frame80215e_create_ie_header_list_termination_1(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* Header IE. List termination 2 (Signals the end of the Header IEs when
* followed by an unformatted payload) */
int frame80215e_create_ie_header_list_termination_2(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* Payload IE. List termination */
int frame80215e_create_ie_payload_list_termination(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* Payload IE. MLME. Used to nest sub-IEs */
int frame80215e_create_ie_mlme(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* MLME sub-IE. TSCH synchronization. Used in EBs: ASN and join priority */
int frame80215e_create_ie_tsch_synchronization(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* MLME sub-IE. TSCH slotframe and link. Used in EBs: initial schedule */
int frame80215e_create_ie_tsch_slotframe_and_link(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* MLME sub-IE. TSCH timeslot. Used in EBs: timeslot template (timing) */
int frame80215e_create_ie_tsch_timeslot(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* MLME sub-IE. TSCH channel hopping sequence. Used in EBs: hopping sequence */
int frame80215e_create_ie_tsch_channel_hopping_sequence(uint8_t *buf, int len,
struct ieee802154_ies *ies);
/* Parse all Information Elements of a frame */
int frame802154e_parse_information_elements(const uint8_t *buf, uint8_t buf_size,
struct ieee802154_ies *ies);
#endif /* FRAME_802154E_H */