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https://github.com/RIOT-OS/RIOT.git
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9ca8afd70c
- fixed a bug in 6LoWPAN reassembly algorithm where in a specific case a pointer could be used although it is NULL - removed MAC routing - added IP routing
92 lines
3.5 KiB
C
92 lines
3.5 KiB
C
#ifndef SIXLOWPAN_H
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#define SIXLOWPAN_H
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#define IP_PROCESS_STACKSIZE 3072
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#define NC_STACKSIZE 512
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#define CON_STACKSIZE 512
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#define LOWPAN_TRANSFER_BUF_STACKSIZE 1024
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/* fragment size in bytes*/
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#define FRAG_PART_ONE_HDR_LEN 4
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#define FRAG_PART_N_HDR_LEN 5
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#define LOWPAN_IPHC_DISPATCH 0x60
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#define LOWPAN_IPHC_FL_C 0x10
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#define LOWPAN_IPHC_TC_C 0x08
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#define LOWPAN_IPHC_CID 0x80
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#define LOWPAN_IPHC_SAC 0x40
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#define LOWPAN_IPHC_SAM 0x30
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#define LOWPAN_IPHC_DAC 0x04
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#define LOWPAN_IPHC_DAM 0x03
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#define LOWPAN_IPHC_M 0x08
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#define LOWPAN_IPHC_NH 0x04
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#define LOWPAN_IPV6_DISPATCH 0x41
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#define LOWPAN_CONTEXT_MAX 16
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#define LOWPAN_REAS_BUF_TIMEOUT 3 * 1000 * 1000 // TODO: Set back to 3 * 1000 * 1000
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#include "transceiver.h"
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#include "sixlowip.h"
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#include <vtimer.h>
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#include <mutex.h>
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#include <time.h>
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extern mutex_t lowpan_context_mutex;
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extern uint8_t static_route;
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extern uint16_t local_address;
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typedef struct lowpan_context_t {
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uint8_t num;
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ipv6_addr_t prefix;
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uint8_t length;
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uint8_t comp;
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uint16_t lifetime;
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} lowpan_context_t;
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typedef struct lowpan_interval_list_t {
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uint8_t start;
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uint8_t end;
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struct lowpan_interval_list_t *next;
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} lowpan_interval_list_t;
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typedef struct lowpan_reas_buf_t {
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ieee_802154_long_t s_laddr; // Source Address
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ieee_802154_long_t d_laddr; // Destination Address
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uint16_t ident_no; // Identification Number
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long timestamp; // Timestamp of last packet fragment
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uint16_t packet_size; // Size of reassembled packet with possible IPHC header
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uint16_t current_packet_size; // Additive size of currently already received fragments
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uint8_t *packet; // Pointer to allocated memory for reassembled packet + 6LoWPAN Dispatch Byte
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lowpan_interval_list_t *interval_list_head; // Pointer to list of intervals of received packet fragments (if any)
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struct lowpan_reas_buf_t *next; // Pointer to next reassembly buffer (if any)
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} lowpan_reas_buf_t;
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extern lowpan_reas_buf_t *head;
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void sixlowpan_init(transceiver_type_t trans, uint8_t r_addr, int as_border);
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void sixlowpan_adhoc_init(transceiver_type_t trans, ipv6_addr_t *prefix, uint8_t r_addr);
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void lowpan_init(ieee_802154_long_t *addr, uint8_t *data);
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void lowpan_read(uint8_t *data, uint8_t length, ieee_802154_long_t *s_laddr,
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ieee_802154_long_t *d_laddr);
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void lowpan_iphc_encoding(ieee_802154_long_t *dest, ipv6_hdr_t *ipv6_buf_extra);
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void lowpan_iphc_decoding(uint8_t *data, uint8_t length,
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ieee_802154_long_t *s_laddr,
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ieee_802154_long_t *d_laddr);
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uint8_t lowpan_context_len();
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void add_fifo_packet(lowpan_reas_buf_t *current_packet);
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lowpan_context_t * lowpan_context_update(
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uint8_t num, const ipv6_addr_t *prefix,
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uint8_t length, uint8_t comp,
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uint16_t lifetime);
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lowpan_context_t * lowpan_context_get();
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lowpan_context_t * lowpan_context_lookup(ipv6_addr_t *addr);
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lowpan_context_t * lowpan_context_num_lookup(uint8_t num);
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lowpan_reas_buf_t *collect_garbage_fifo(lowpan_reas_buf_t *current_buf);
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lowpan_reas_buf_t *collect_garbage(lowpan_reas_buf_t *current_buf);
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void check_timeout(void);
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void lowpan_ipv6_set_dispatch(uint8_t *data);
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void init_reas_bufs(lowpan_reas_buf_t *buf);
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void printReasBuffers(void);
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void printFIFOBuffers(void);
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#endif
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