/*-----------------------------------------------------------------------------------*/
void
sec_arp_init(void)
{
uint8_t sum, i;
uint8_t temp_buf[KEY_SIZE*3];
/* Read security data from Flash mem */
xmem_pread(temp_buf, (KEY_SIZE*3), MAC_SECURITY_DATA);
/* Check if we have a network key */
sum = 0;
for(i=KEY_SIZE; i>0; i--) {sum |= temp_buf[i-1];}
if(!(sum)) {
/* Init slip connection */
slip_arch_init(BAUD2UBR(115200));
PRINTF("sec-arp: Start slip process\n");
process_start(&slip_process, NULL);
slip_set_input_callback(slip_input_callback);
/* Send hello packet */
create_hello();
} else {
PRINTF("sec-arp: Key OK\n");
#if DEBUG
PRINTF("sec-arp: buf ");
for(i=0; i<(KEY_SIZE*3); i++) PRINTF("%02x ", temp_buf[i]);
PRINTF("\n");
#endif
/* Set security data */
set_security_data(temp_buf);
}
}
/*---------------------------------------------------------------------------*/
void
node_id_restore(void)
{
unsigned char buf[4];
xmem_pread(buf, 4, NODE_ID_XMEM_OFFSET);
if(buf[0] == 0xad &&
buf[1] == 0xde) {
node_id = (buf[2] << 8) | buf[3];
} else {
node_id = 0;
}
}
/*---------------------------------------------------------------------------*/
int
cfs_read(int f, void *buf, unsigned int len)
{
if(file.fileptr + len > CFS_XMEM_SIZE) {
len = CFS_XMEM_SIZE - file.fileptr;
}
if(file.fileptr + len > file.filesize) {
len = file.filesize - file.fileptr;
}
if(f == 1) {
xmem_pread(buf, len, CFS_XMEM_OFFSET + file.fileptr);
file.fileptr += len;
return len;
} else {
return -1;
}
}
/*---------------------------------------------------------------------------*/
void
key_flash_restore_keying_material(void *keying_material, uint16_t len, uint16_t offset)
{
xmem_pread(keying_material, len, KEY_FLASH_KEYING_MATERIAL_OFFSET + offset);
}
/*---------------------------------------------------------------------------*/
int
elfloader_load(off_t eepromaddr)
{
struct cle_info h;
int ret;
void (*elfloader_init)(void);
elfloader_unknown[0] = 0;
/* The ELF header is located at the start of the buffer. */
ret = cle_read_info(&h, xmem_pread, eepromaddr);
if(ret != ELFLOADER_OK) {
memcpy(elfloader_unknown, h.name, sizeof(elfloader_unknown));
elfloader_unknown[sizeof(elfloader_unknown) - 1] = 0;
return ret;
}
if(datamemory != NULL) {
free(datamemory);
}
/* We are making semi-permanent allocations, first compact heap! */
/* malloc_compact(); */
datamemory = malloc(IMAX(h.textsize, h.datasize + h.bsssize));
if(datamemory == NULL) {
return ELFLOADER_DATA_TO_LARGE; /* XXX or text to large */
}
h.data = datamemory;
h.bss = datamemory + h.datasize;
h.text = TEXTMEMORY;
PRINTF("elfloader: copy text segment to RAM %p %p\n",
h.data, h.data + h.textsize);
ret = xmem_pread(datamemory, h.textsize, eepromaddr + h.textoff);
assert(ret > 0);
if(h.textrelasize > 0) {
PRINTF("elfloader: relocate text in RAM\n");
ret = cle_relocate(&h,
xmem_pread,
eepromaddr,
datamemory,
h.textrelaoff, h.textrelasize);
if(ret != ELFLOADER_OK) {
memcpy(elfloader_unknown, h.name, sizeof(elfloader_unknown));
elfloader_unknown[sizeof(elfloader_unknown) - 1] = 0;
return ret;
}
}
PRINTF("elfloader: copy text segment to ROM 0x%lx 0x%lx\n",
(unsigned long)h.text,
(unsigned long)h.text + h.textsize);
ret = rom_erase((h.textsize+ROM_ERASE_UNIT_SIZE) & ~(ROM_ERASE_UNIT_SIZE-1),
h.text);
assert(ret > 0);
ret = rom_pwrite(datamemory, h.textsize, h.text);
assert(ret > 0);
PRINTF("elfloader: copy data segment to RAM %p %p\n",
h.data, h.data + h.datasize);
ret = xmem_pread(datamemory, h.datasize, eepromaddr + h.dataoff);
assert(ret >= h.datasize);
if(h.datarelasize > 0) {
PRINTF("elfloader: relocate data segment\n");
ret = cle_relocate(&h,
xmem_pread,
eepromaddr,
datamemory,
h.datarelaoff, h.datarelasize);
if(ret != ELFLOADER_OK) {
memcpy(elfloader_unknown, h.name, sizeof(elfloader_unknown));
elfloader_unknown[sizeof(elfloader_unknown) - 1] = 0;
return ret;
}
}
PRINTF("elfloader: zero bss %p %p\n", h.bss, h.bss + h.bsssize);
memset(h.bss, 0, h.bsssize);
/* Find _init, _fini, and loaded_process. */
elfloader_loaded_process = cle_lookup(&h, xmem_pread, eepromaddr,
"autostart_processes");
elfloader_fini = cle_lookup(&h, xmem_pread, eepromaddr, "_fini");
elfloader_init = cle_lookup(&h, xmem_pread, eepromaddr, "_init");
if(elfloader_init != NULL) {
PRINTF("init=%p fini=%p\n", elfloader_init, elfloader_fini);
(*elfloader_init)();
elfloader_loaded_process = NULL;
return ELFLOADER_OK;
}
if(elfloader_loaded_process != NULL) {
PRINTF("elfloader: launch program\n");
process_start(elfloader_loaded_process, NULL);
elfloader_fini = NULL;
return ELFLOADER_OK;
} else {
return ELFLOADER_NO_STARTPOINT;
}
}
