80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
#pragma once
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#include <it2s-asn/saem/SAEM.h>
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#include <stdint.h>
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#define MAX_ANNOUNCEMENTS_LEN 32
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typedef enum {
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SAID_ETC = 1,
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SAID_EVCSN = 999 // TODO define
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} SAID_e;
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typedef struct announcement {
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SAID_e its_aid;
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uint8_t protocol_id;
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uint8_t traffic_class;
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uint8_t* certificate_id; /* neighbour security-layer identity */
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struct {
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uint8_t ipv6_addr[16];
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uint16_t port;
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} endpoint;
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struct {
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uint8_t* context;
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uint16_t context_len;
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uint8_t* data;
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uint16_t data_len;
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void* internal_p;
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} info;
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uint32_t station_id;
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uint64_t timestamp;
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uint32_t n_trigger; /* number of times service was triggered */
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uint64_t t_trigger; /* last trigger timestamp */
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} announcement_t;
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typedef struct bulletin {
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announcement_t* to_consume[MAX_ANNOUNCEMENTS_LEN];
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uint8_t to_consume_len;
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announcement_t* to_provide[16];
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uint8_t to_provide_len;
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pthread_mutex_t lock;
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} bulletin_t;
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typedef enum SAEM_CODE {
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SAEM_OK,
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SAEM_NEW,
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SAEM_INVALID_HEADER_MESSAGE_ID,
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SAEM_INVALID_HEADER_VERSION,
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SAEM_MAX_ANNOUNCEMENTS_REACHED
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} SAEM_CODE_R;
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/**
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* Initiaties bulletin, the main SA structure
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*
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* @return Nothing
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*/
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void bulletin_init();
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/**
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* Checks SAEM, saves advertisements
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*
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* @param saem The SAEM message to check
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* @param neighbour The certificate used by the neighbour, for encryption
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* @return SAEM_CODE
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*/
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SAEM_CODE_R saem_check(SAEM_t* saem, uint8_t* neighbour);
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/**
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* The main SA function, run as a thread
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*
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* @return NULL
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*/
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void* sa_service();
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