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sketched API for a central device persistent db

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matthias.ringwald@gmail.com 2014-01-01 22:23:19 +00:00
parent d5359ecc0b
commit d5e21d27a0
1 changed files with 76 additions and 0 deletions
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76
example/libusb/ble_server.c
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@ -473,6 +473,82 @@ static void print_hex16(const char * name, uint16_t value){
printf("%-6s 0x%04x\n", name, value);
}
// Central Device db interface
void central_device_db_init();
// @returns true, if successful
int central_device_db_add(int addr_type, bd_addr_t addr, key_t csrk);
// @returns number of device in db
int central_device_db_count(void);
// get device information: addr type and address
void central_device_db_info(int index, int * addr_type, bd_addr_t addr, key_t csrk);
// query last used/seen signing counter
uint32_t central_device_db_counter_get(int index);
// update signing counter
void central_device_db_counter_set(int index, uint32_t counter);
// free device
void central_device_db_remove(int index);
// Central Device db implemenation using static memory
typedef struct central_device_memory_db {
int addr_type;
bd_addr_t addr;
key_t csrk;
uint32_t signing_counter;
} central_device_memory_db_t;
#define CENTRAL_DEVICE_MEMORY_SIZE 4
static central_device_memory_db_t central_devices[CENTRAL_DEVICE_MEMORY_SIZE];
static int central_devices_count;
void central_device_db_init(){
central_devices_count = 0;
}
// @returns number of device in db
int central_device_db_count(void){
return central_devices_count;
}
// free device - TODO not implemented
void central_device_db_remove(int index){
}
int central_device_db_add(int addr_type, bd_addr_t addr, key_t csrk){
if (central_devices_count >= CENTRAL_DEVICE_MEMORY_SIZE) return 0;
central_devices[central_devices_count].addr_type = addr_type;
memcpy(central_devices[central_devices_count].addr, addr, 6);
memcpy(central_devices[central_devices_count].csrk, csrk, 16);
central_devices[central_devices_count].signing_counter = 0;
central_devices_count++;
return 1;
}
// get device information: addr type and address
void central_device_db_info(int index, int * addr_type, bd_addr_t addr, key_t csrk){
if (addr_type) *addr_type = central_devices[index].addr_type;
if (addr) memcpy(addr, central_devices[index].addr, 6);
if (csrk) memcpy(csrk, central_devices[index].csrk, 16);
}
// query last used/seen signing counter
uint32_t central_device_db_counter_get(int index){
return central_devices[index].signing_counter;
}
// update signing counter
void central_device_db_counter_set(int index, uint32_t counter){
central_devices[index].signing_counter = counter;
}
// SMP Timeout implementation
// Upon transmission of the Pairing Request command or reception of the Pairing Request command,