Exemplo n.º 1
0
void lb_table_add_macs_from_vpd(struct lb_header *header)
{
	/*
	 * Mac addresses in the VPD can be stored in two groups, for ethernet
	 * and WiFi, with keys 'ethernet_macX and wifi_macX.
	 */
	const char *mac_addr_key_bases[] = {"ethernet_mac0", "wifi_mac0"};
	char mac_addr_key[20]; /* large enough for either key */
	char mac_addr_str[13]; /* 12 symbols and the trailing zero. */
	int i, count;
	struct lb_macs *macs = NULL;

	/* Make sure the copy is always zero terminated. */
	mac_addr_key[sizeof(mac_addr_key) - 1] = '\0';

	count = 0;
	for (i = 0; i < ARRAY_SIZE(mac_addr_key_bases); i++) {
		int index_of_index;

		strncpy(mac_addr_key, mac_addr_key_bases[i],
			sizeof(mac_addr_key) - 1);
		index_of_index = strlen(mac_addr_key) - 1;

		do {
			/*
			 * If there are no more MAC addresses of this template
			 * in the VPD - move on.
			 */
			if (!cros_vpd_gets(mac_addr_key, mac_addr_str,
					   sizeof(mac_addr_str)))
				break;

			if (!macs) {
				macs = (struct lb_macs *)lb_new_record(header);
				macs->tag = LB_TAG_MAC_ADDRS;
			}

			decode_mac(macs->mac_addrs + count,
				   mac_addr_str,
				   mac_addr_key);

			count++;
			mac_addr_key[index_of_index]++;
		} while (count < 10);
	}
	if (!count)
		return; /* No MAC addresses in the VPD. */

	macs->count = count;
	macs->size = sizeof(*macs) + count * sizeof(struct mac_address);
}
Exemplo n.º 2
0
void lb_table_add_serialno_from_vpd(struct lb_header *header)
{
	struct lb_string *serialno_rec = NULL;
	const char serialno_key[] = "serial_number";
	char serialno[32];
	size_t len;

	if (!cros_vpd_gets(serialno_key, serialno,
				sizeof(serialno))) {
		printk(BIOS_ERR, "no serial number in vpd\n");
		return;
	}
	printk(BIOS_DEBUG, "serial number is %s\n", serialno);
	len = strlen(serialno) + 1;
	ASSERT(len <= 32);

	serialno_rec = (struct lb_string *)lb_new_record(header);
	serialno_rec->tag = LB_TAG_SERIALNO;

	serialno_rec->size = ALIGN_UP(sizeof(*serialno_rec) + len, 8);
	memcpy(&serialno_rec->string, serialno, len);
}