static ssize_t
unparse_bios_path(char *buffer, size_t buffer_size, EFI_DEVICE_PATH *path)
{
BIOS_BOOT_SPEC_DEVICE_PATH *bios = (BIOS_BOOT_SPEC_DEVICE_PATH *)path;
char *p = buffer;
unsigned char *q = (uint8_t *)path + 8;
char a[16], b[16];
size_t needed;
off_t buf_offset = 0;
needed = snprintf(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
"BIOS(%x,%x,",
get(a, bios->device_type), get(b, bios->status_flag));
if (needed < 0)
return -1;
buf_offset += needed;
needed = unparse_raw(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
q, path->length - 8);
if (needed < 0)
return -1;
buf_offset += needed;
needed = snprintf(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
")");
if (needed < 0)
return -1;
buf_offset += needed;
return buf_offset;
}
static int
unparse_hardware_path(char *buffer, EFI_DEVICE_PATH *path)
{
PCI_DEVICE_PATH *pci = (PCI_DEVICE_PATH *)path;
PCCARD_DEVICE_PATH *pccard = (PCCARD_DEVICE_PATH *)path;
MEMORY_MAPPED_DEVICE_PATH *mm = (MEMORY_MAPPED_DEVICE_PATH *)path;
CONTROLLER_DEVICE_PATH *ctlr = (CONTROLLER_DEVICE_PATH *)path;
char a[16], b[16], c[16];
switch (path->subtype) {
case 1:
return sprintf(buffer, "PCI(%x,%x)", get(a, pci->device), get(b, pci->function));
break;
case 2:
return sprintf(buffer, "PCCARD(%x)", get(a, pccard->socket));
break;
case 3:
return sprintf(buffer, "MM(%x,%" PRIx64 ",%" PRIx64 ")",
get(a, mm->memory_type),
get(b, mm->start),
get(c, mm->end));
break;
case 4:
return unparse_vendor_path(buffer, (VENDOR_DEVICE_PATH *)path);
break;
case 5:
return sprintf(buffer, "Controller(%x)", get(a, ctlr->controller));
break;
default:
return unparse_raw(buffer, (uint8_t *)path, path->length);
}
return 0;
}
static int
unparse_vendor_path(char *buffer, VENDOR_DEVICE_PATH *path)
{
char text_guid[40], *p = buffer;
unsigned char *q = (uint8_t *)path + 20;
efi_guid_unparse(&path->vendor_guid, text_guid);
p += sprintf(p, "Vendor(%s,", text_guid);
p += unparse_raw(p, q, path->length - 20);
p += sprintf(p, ")");
return p - buffer;
}
static int
unparse_bios_path(char *buffer, EFI_DEVICE_PATH *path)
{
BIOS_BOOT_SPEC_DEVICE_PATH *bios = (BIOS_BOOT_SPEC_DEVICE_PATH *)path;
char *p = buffer;
unsigned char *q = (uint8_t *)path + 8;
char a[16], b[16];
p += sprintf(p, "BIOS(%x,%x,",
get(a, bios->device_type), get(b, bios->status_flag));
p += unparse_raw(p, q, path->length - 8);
p += sprintf(p, ")");
return p - buffer;
}
static int
unparse_acpi_path(char *buffer, EFI_DEVICE_PATH *path)
{
ACPI_DEVICE_PATH *acpi = (ACPI_DEVICE_PATH *)path;
char a[16], b[16];
switch (path->subtype) {
case 1:
return sprintf(buffer, "ACPI(%x,%x)", get(a, acpi->_HID), get(b, acpi->_UID));
break;
default:
return unparse_raw(buffer, (uint8_t *)path, path->length);
break;
}
return 0;
}
static ssize_t
unparse_vendor_path(char *buffer, size_t buffer_size, char *prefix,
VENDOR_DEVICE_PATH *path)
{
char *text_guid;
unsigned char *q = (uint8_t *)path + 20;
int rc;
size_t needed;
off_t buf_offset = 0;
rc = efi_guid_to_str(&path->vendor_guid, &text_guid);
if (rc < 0)
return -1;
needed = snprintf(buffer, buffer_size, "%s(%s,",
prefix ? prefix : "Vendor", text_guid);
free(text_guid);
if (needed < 0)
return -1;
buf_offset += needed;
needed = unparse_raw(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
q, path->length - 20);
if (needed < 0)
return -1;
buf_offset += needed;
needed = snprintf(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
")");
if (needed < 0)
return -1;
buf_offset += needed;
return buf_offset;
}
static int
unparse_messaging_path(char *buffer, EFI_DEVICE_PATH *path)
{
ATAPI_DEVICE_PATH *atapi = (ATAPI_DEVICE_PATH *)path;
SCSI_DEVICE_PATH *scsi = (SCSI_DEVICE_PATH *)path;
FIBRE_CHANNEL_DEVICE_PATH *fc = (FIBRE_CHANNEL_DEVICE_PATH *)path;
I1394_DEVICE_PATH *i1394 = (I1394_DEVICE_PATH *)path;
USB_DEVICE_PATH *usb = (USB_DEVICE_PATH *)path;
MAC_ADDR_DEVICE_PATH *mac = (MAC_ADDR_DEVICE_PATH *)path;
USB_CLASS_DEVICE_PATH *usbclass = (USB_CLASS_DEVICE_PATH *)path;
I2O_DEVICE_PATH *i2o = (I2O_DEVICE_PATH *)path;
IPv4_DEVICE_PATH *ipv4 = (IPv4_DEVICE_PATH *)path;
/* IPv6_DEVICE_PATH *ipv6 = (IPv6_DEVICE_PATH *)path; */
char *p = buffer;
char a[16], b[16], c[16], d[16], e[16];
switch (path->subtype) {
case 1:
return sprintf(buffer, "ATAPI(%x,%x,%x)",
get(a, atapi->primary_secondary),
get(b, atapi->slave_master),
get(c, atapi->lun));
break;
case 2:
return sprintf(buffer, "SCSI(%x,%x)", get(a, scsi->id), get(b, scsi->lun));
break;
case 3:
return sprintf(buffer, "FC(%" PRIx64 ",%" PRIx64 ")", get(a, fc->wwn), get(b, fc->lun));
break;
case 4:
return sprintf(buffer, "1394(%" PRIx64 ")", get(a, i1394->guid));
break;
case 5:
return sprintf(buffer, "USB(%x,%x)", get(a, usb->port), get(b, usb->endpoint));
break;
case 6:
return sprintf(buffer, "I2O(%x)", get(a, i2o->tid));
break;
case 11:
p += sprintf(p, "MAC(");
p += unparse_raw(p, mac->macaddr, 6);
p += sprintf(p, ",%hhx)", get(a, mac->iftype));
return (int) (p - buffer);
break;
case 12:
p += sprintf(p, "IPv4(");
p += unparse_ipv4_port(p, ipv4->local_ip, ipv4->local_port);
p += sprintf(p, "<->");
p += unparse_ipv4_port(p, ipv4->remote_ip, ipv4->remote_port);
p += sprintf(p, ",%hx, %hhx", get(a, ipv4->protocol), get(b, ipv4->static_addr));
return (int) (p - buffer);
break;
case 15:
return sprintf(buffer, "USBClass(%hx,%hx,%hhx,%hhx,%hhx)",
get(a, usbclass->vendor), get(b, usbclass->product),
get(c, usbclass->class), get(d, usbclass->subclass),
get(e, usbclass->protocol));
break;
default:
return unparse_raw(buffer, (uint8_t *)path, path->length);
break;
}
return 0;
}
ssize_t
unparse_path(char *buffer, size_t buffer_size,
EFI_DEVICE_PATH *path, uint16_t pathsize)
{
uint16_t parsed_length = 0;
char *p = buffer;
size_t needed;
off_t buf_offset = 0;
int exit_now = 0;
while (parsed_length < pathsize && !exit_now) {
switch (path->type) {
case 0x01:
needed = unparse_hardware_path(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
path);
if (needed < 0)
return -1;
buf_offset += needed;
break;
case 0x02:
needed = unparse_acpi_path(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
path);
if (needed < 0)
return -1;
buf_offset += needed;
break;
case 0x03:
needed = unparse_messaging_path(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
path);
if (needed < 0)
return -1;
buf_offset += needed;
break;
case 0x04:
needed = unparse_media_path(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
path);
if (needed < 0)
return -1;
buf_offset += needed;
break;
case 0x05:
needed = unparse_bios_path(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
path);
if (needed < 0)
return -1;
buf_offset += needed;
break;
case 0x7F:
exit_now = 1;
break;
case 0xFF:
exit_now = 1;
break;
default:
needed = snprintf(p + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
"Unknown(%d,%d,", path->type, path->subtype);
if (needed < 0)
return -1;
buf_offset += needed;
if (path->length + sizeof (END_DEVICE_PATH)
> (uint64_t)(pathsize - parsed_length)){
needed = snprintf(p + buf_offset,
buffer_size == 0
? 0
: buffer_size - buf_offset,
"invalid size)");
if (needed < 0)
return -1;
buf_offset += needed;
exit_now = 1;
} else {
needed = snprintf(p + buf_offset,
buffer_size == 0
? 0
: buffer_size - buf_offset,
"%d,", path->length);
if (needed < 0)
return -1;
buf_offset += needed;
needed = unparse_raw(p + buf_offset,
buffer_size == 0
? 0
: buffer_size - buf_offset,
(uint8_t *)path +
offsetof(EFI_DEVICE_PATH, data),
path->length);
if (needed < 0)
return -1;
buf_offset += needed;
needed = snprintf(p + buf_offset,
buffer_size == 0
? 0
: buffer_size - buf_offset,
")");
if (needed < 0)
return -1;
buf_offset += needed;
}
break;
}
// p += sprintf(p, "\\");
parsed_length += path->length;
path = (EFI_DEVICE_PATH *) ((uint8_t *)path + path->length);
}
return buf_offset;
}
static ssize_t
unparse_messaging_path(char *buffer, size_t buffer_size, EFI_DEVICE_PATH *path)
{
ATAPI_DEVICE_PATH *atapi = (ATAPI_DEVICE_PATH *)path;
SATA_DEVICE_PATH *sata = (SATA_DEVICE_PATH *)path;
SCSI_DEVICE_PATH *scsi = (SCSI_DEVICE_PATH *)path;
FIBRE_CHANNEL_DEVICE_PATH *fc = (FIBRE_CHANNEL_DEVICE_PATH *)path;
I1394_DEVICE_PATH *i1394 = (I1394_DEVICE_PATH *)path;
USB_DEVICE_PATH *usb = (USB_DEVICE_PATH *)path;
MAC_ADDR_DEVICE_PATH *mac = (MAC_ADDR_DEVICE_PATH *)path;
USB_CLASS_DEVICE_PATH *usbclass = (USB_CLASS_DEVICE_PATH *)path;
I2O_DEVICE_PATH *i2o = (I2O_DEVICE_PATH *)path;
IPv4_DEVICE_PATH *ipv4 = (IPv4_DEVICE_PATH *)path;
/* IPv6_DEVICE_PATH *ipv6 = (IPv6_DEVICE_PATH *)path; */
NVME_DEVICE_PATH *nvme = (NVME_DEVICE_PATH *)path;
char a[16], b[16], c[16], d[16], e[16];
size_t needed;
off_t buf_offset = 0;
switch (path->subtype) {
case 1:
return snprintf(buffer, buffer_size, "ATAPI(%x,%x,%x)",
get(a, atapi->primary_secondary),
get(b, atapi->slave_master),
get(c, atapi->lun));
case 2:
return snprintf(buffer, buffer_size, "SCSI(%x,%x)",
get(a, scsi->id), get(b, scsi->lun));
case 3:
return snprintf(buffer, buffer_size,
"FC(%" PRIx64 ",%" PRIx64 ")",
get(a, fc->wwn), get(b, fc->lun));
case 4:
return snprintf(buffer, buffer_size, "1394(%" PRIx64 ")",
get(a, i1394->guid));
case 5:
return snprintf(buffer, buffer_size, "USB(%x,%x)",
get(a, usb->port), get(b, usb->endpoint));
case 6:
return snprintf(buffer, buffer_size, "I2O(%x)",
get(a, i2o->tid));
case 10:
return unparse_vendor_path(buffer, buffer_size, "VenMsg",
(VENDOR_DEVICE_PATH *)path);
case 11:
needed = snprintf(buffer, buffer_size, "MAC(");
if (needed < 0)
return needed;
buf_offset += needed;
needed = snprintf(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
"MAC(");
if (needed < 0)
return needed;
buf_offset += needed;
needed = unparse_raw(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
mac->macaddr, 6);
if (needed < 0)
return needed;
buf_offset += needed;
needed = snprintf(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
",%hhx)", get(a, mac->iftype));
if (needed < 0)
return needed;
buf_offset += needed;
return buf_offset;
case 12:
needed = snprintf(buffer, buf_offset, "IPv4(");
if (needed < 0)
return -1;
buf_offset += needed;
needed = unparse_ipv4_port(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
ipv4->local_ip, ipv4->local_port);
if (needed < 0)
return -1;
buf_offset += needed;
needed = snprintf(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
"<->");
if (needed < 0)
return -1;
buf_offset += needed;
needed = unparse_ipv4_port(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
ipv4->remote_ip, ipv4->remote_port);
if (needed < 0)
return -1;
buf_offset += needed;
needed = snprintf(buffer + buf_offset,
buffer_size == 0 ? 0 : buffer_size - buf_offset,
",%hx, %hhx", get(a, ipv4->protocol),
get(b, ipv4->static_addr));
if (needed < 0)
return -1;
buf_offset += needed;
return buf_offset;
case 15:
return snprintf(buffer, buffer_size,
"USBClass(%hx,%hx,%hhx,%hhx,%hhx)",
get(a, usbclass->vendor),
get(b, usbclass->product),
get(c, usbclass->class),
get(d, usbclass->subclass),
get(e, usbclass->protocol));
case 18:
return snprintf(buffer, buffer_size,
"SATA(%hx,%hx,%hx)",
get(a, sata->port),
get(b, sata->port_multiplier),
get(c, sata->lun));
case 23:
return snprintf(buffer, buffer_size,
"NVME(%x,%lx)",
get(a, nvme->namespace_id),
get(b, nvme->ieee_extended_unique_identifier));
default:
return unparse_raw(buffer, buffer_size,
(uint8_t *)path, path->length);
}
return 0;
}
