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Member "file-5.35/magic/Magdir/zfs" (17 Mar 2017, 2423 Bytes) of package /linux/misc/file-5.35.tar.gz:


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    1 #------------------------------------------------------------------------------
    2 # zfs:	file(1) magic for ZFS dumps
    3 #
    4 # From <rea-fbsd@codelabs.ru>
    5 # ZFS dump header has the following structure (as per zfs_ioctl.h
    6 # in FreeBSD with drr_type is set to DRR_BEGIN)
    7 #
    8 #   enum {
    9 #	DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS,
   10 #	DRR_WRITE, DRR_FREE, DRR_END,
   11 #   } drr_type;
   12 #   uint32_t drr_pad;
   13 #   uint64_t drr_magic;
   14 #   uint64_t drr_version;
   15 #   uint64_t drr_creation_time;
   16 #   dmu_objset_type_t drr_type;
   17 #   uint32_t drr_pad;
   18 #   uint64_t drr_toguid;
   19 #   uint64_t drr_fromguid;
   20 #   char drr_toname[MAXNAMELEN];
   21 #
   22 # Backup magic is 0x00000002f5bacbac (quad word)
   23 # The drr_type is defined as
   24 #   typedef enum dmu_objset_type {
   25 #	  DMU_OST_NONE,
   26 #	  DMU_OST_META,
   27 #	  DMU_OST_ZFS,
   28 #	  DMU_OST_ZVOL,
   29 #	  DMU_OST_OTHER,		  /* For testing only! */
   30 #	  DMU_OST_ANY,			  /* Be careful! */
   31 #	  DMU_OST_NUMTYPES
   32 #  } dmu_objset_type_t;
   33 #
   34 # Almost all uint64_t fields are printed as the 32-bit ones (with high
   35 # 32 bits zeroed), because there is no simple way to print them as the
   36 # full 64-bit values.
   37 
   38 # Big-endian values
   39 8	string	\000\000\000\002\365\272\313\254 ZFS shapshot (big-endian machine),
   40 >20	belong	x	version %u,
   41 >32	belong	0	type: NONE,
   42 >32	belong	1	type: META,
   43 >32	belong	2	type: ZFS,
   44 >32	belong	3	type: ZVOL,
   45 >32	belong	4	type: OTHER,
   46 >32	belong	5	type: ANY,
   47 >32	belong	>5	type: UNKNOWN (%u),
   48 >40	byte	x	destination GUID: %02X
   49 >41	byte	x	%02X
   50 >42	byte	x	%02X
   51 >43	byte	x	%02X
   52 >44	byte	x	%02X
   53 >45	byte	x	%02X
   54 >46	byte	x	%02X
   55 >47	byte	x	%02X,
   56 >48	ulong	>0
   57 >>52	ulong	>0
   58 >>>48	byte	x	source GUID: %02X
   59 >>>49	byte	x	%02X
   60 >>>50	byte	x	%02X
   61 >>>51	byte	x	%02X
   62 >>>52	byte	x	%02X
   63 >>>53	byte	x	%02X
   64 >>>54	byte	x	%02X
   65 >>>55	byte	x	%02X,
   66 >56	string	>\0	name: '%s'
   67 
   68 # Little-endian values
   69 8	string	\254\313\272\365\002\000\000\000	ZFS shapshot (little-endian machine),
   70 >16	lelong	x	version %u,
   71 >32	lelong	0	type: NONE,
   72 >32	lelong	1	type: META,
   73 >32	lelong	2	type: ZFS,
   74 >32	lelong	3	type: ZVOL,
   75 >32	lelong	4	type: OTHER,
   76 >32	lelong	5	type: ANY,
   77 >32	lelong	>5	type: UNKNOWN (%u),
   78 >47	byte	x	destination GUID: %02X
   79 >46	byte	x	%02X
   80 >45	byte	x	%02X
   81 >44	byte	x	%02X
   82 >43	byte	x	%02X
   83 >42	byte	x	%02X
   84 >41	byte	x	%02X
   85 >40	byte	x	%02X,
   86 >48	ulong	>0
   87 >>52	ulong	>0
   88 >>>55	byte	x	source GUID: %02X
   89 >>>54	byte	x	%02X
   90 >>>53	byte	x	%02X
   91 >>>52	byte	x	%02X
   92 >>>51	byte	x	%02X
   93 >>>50	byte	x	%02X
   94 >>>49	byte	x	%02X
   95 >>>48	byte	x	%02X,
   96 >56	string	>\0	name: '%s'