static void print_kind(int filekind, u8 size, int size_known)
{
char buf[256], *kindname;
if (filekind == 0)
kindname = "Regular file";
else if (filekind == 1)
kindname = "Block device";
else if (filekind == 2)
kindname = "Character device";
else
kindname = "Unknown kind";
if (size_known) {
format_size_verbose(buf, size);
print_line(0, "%s, size %s", kindname, buf);
} else {
print_line(0, "%s, unknown size", kindname);
}
}
void detect_linux_lvm2(SECTION *section, int level)
{
unsigned char *buf;
int at, i;
char s[256];
u8 labelsector;
u4 labeloffset;
u8 pvsize, mdoffset, mdsize;
int mda_version;
for (at = 0; at < 4; at++) {
if (get_buffer(section, at * 512, 512, (void **)&buf) < 512)
continue;
/* check signature */
if (memcmp(buf, "LABELONE", 8) != 0)
continue;
labelsector = get_le_quad(buf + 8);
labeloffset = get_le_long(buf + 20);
if (memcmp(buf + 24, "LVM2 001", 8) != 0) {
get_string(buf + 24, 8, s);
print_line(level, "LABELONE label at sector %d, unknown type \"%s\"",
at, s);
return;
}
print_line(level, "Linux LVM2 volume, version 001");
print_line(level + 1, "LABELONE label at sector %d",
at);
if (labeloffset >= 512 || labelsector > 256 ||
labelsector != at) {
print_line(level + 1, "LABELONE data inconsistent, aborting analysis");
return;
}
/* "UUID" of this physical volume */
format_uuid_lvm(buf + labeloffset, s);
print_line(level + 1, "PV UUID %s", s);
/* raw volume size */
pvsize = get_le_quad(buf + labeloffset + 32);
format_size_verbose(s, pvsize);
print_line(level + 1, "Volume size %s", s);
/* find first metadata area in list */
mdoffset = 0;
for (i = 0; i < 16; i++)
if (get_le_quad(buf + labeloffset + 40 + i * 16) == 0) {
i++;
mdoffset = get_le_quad(buf + labeloffset + 40 + i * 16);
mdsize = get_le_quad(buf + labeloffset + 40 + i * 16 + 8);
break;
}
if (mdoffset == 0)
return;
if (get_buffer(section, mdoffset, mdsize, (void **)&buf) < mdsize)
return;
if (memcmp(buf + 4, " LVM2 x[5A%r0N*>", 16) != 0)
return;
mda_version = get_le_long(buf + 20);
print_line(level + 1, "Meta-data version %d", mda_version);
/* TODO: parse the metadata area (big task...) */
return;
}
}
