97 lines
2.4 KiB
Text
97 lines
2.4 KiB
Text
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#------------------------------------------------------------------------------
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# zfs: file(1) magic for ZFS dumps
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#
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# From <rea-fbsd@codelabs.ru>
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# ZFS dump header has the following structure (as per zfs_ioctl.h
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# in FreeBSD with drr_type is set to DRR_BEGIN)
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#
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# enum {
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# DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS,
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# DRR_WRITE, DRR_FREE, DRR_END,
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# } drr_type;
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# uint32_t drr_pad;
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# uint64_t drr_magic;
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# uint64_t drr_version;
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# uint64_t drr_creation_time;
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# dmu_objset_type_t drr_type;
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# uint32_t drr_pad;
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# uint64_t drr_toguid;
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# uint64_t drr_fromguid;
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# char drr_toname[MAXNAMELEN];
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#
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# Backup magic is 0x00000002f5bacbac (quad word)
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# The drr_type is defined as
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# typedef enum dmu_objset_type {
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# DMU_OST_NONE,
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# DMU_OST_META,
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# DMU_OST_ZFS,
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# DMU_OST_ZVOL,
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# DMU_OST_OTHER, /* For testing only! */
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# DMU_OST_ANY, /* Be careful! */
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# DMU_OST_NUMTYPES
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# } dmu_objset_type_t;
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#
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# Almost all uint64_t fields are printed as the 32-bit ones (with high
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# 32 bits zeroed), because there is no simple way to print them as the
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# full 64-bit values.
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# Big-endian values
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8 string \000\000\000\002\365\272\313\254 ZFS snapshot (big-endian machine),
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>20 belong x version %u,
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>32 belong 0 type: NONE,
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>32 belong 1 type: META,
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>32 belong 2 type: ZFS,
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>32 belong 3 type: ZVOL,
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>32 belong 4 type: OTHER,
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>32 belong 5 type: ANY,
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>32 belong >5 type: UNKNOWN (%u),
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>40 byte x destination GUID: %02X
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>41 byte x %02X
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>42 byte x %02X
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>43 byte x %02X
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>44 byte x %02X
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>45 byte x %02X
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>46 byte x %02X
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>47 byte x %02X,
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>48 ulong >0
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>>52 ulong >0
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>>>48 byte x source GUID: %02X
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>>>49 byte x %02X
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>>>50 byte x %02X
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>>>51 byte x %02X
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>>>52 byte x %02X
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>>>53 byte x %02X
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>>>54 byte x %02X
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>>>55 byte x %02X,
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>56 string >\0 name: '%s'
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# Little-endian values
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8 string \254\313\272\365\002\000\000\000 ZFS snapshot (little-endian machine),
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>16 lelong x version %u,
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>32 lelong 0 type: NONE,
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>32 lelong 1 type: META,
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>32 lelong 2 type: ZFS,
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>32 lelong 3 type: ZVOL,
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>32 lelong 4 type: OTHER,
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>32 lelong 5 type: ANY,
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>32 lelong >5 type: UNKNOWN (%u),
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>47 byte x destination GUID: %02X
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>46 byte x %02X
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>45 byte x %02X
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>44 byte x %02X
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>43 byte x %02X
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>42 byte x %02X
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>41 byte x %02X
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>40 byte x %02X,
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>48 ulong >0
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>>52 ulong >0
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>>>55 byte x source GUID: %02X
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>>>54 byte x %02X
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>>>53 byte x %02X
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>>>52 byte x %02X
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>>>51 byte x %02X
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>>>50 byte x %02X
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>>>49 byte x %02X
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>>>48 byte x %02X,
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>56 string >\0 name: '%s'
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