add zfs magic

diff --git a/magic/Magdir/zfs b/magic/Magdir/zfs
new file mode 100644 (file)
index 0000000..1f74409
--- /dev/null
+++ b/magic/Magdir/zfs
@@ -0,0 +1,96 @@
+#------------------------------------------------------------------------------
+# zfs: file(1) magic for ZFS dumps
+#
+# From <rea-fbsd@codelabs.ru>
+# ZFS dump header has the following structure (as per zfs_ioctl.h
+# in FreeBSD with drr_type is set to DRR_BEGIN)
+#
+#   enum {
+#      DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS,
+#      DRR_WRITE, DRR_FREE, DRR_END,
+#   } drr_type;
+#   uint32_t drr_pad;
+#   uint64_t drr_magic;
+#   uint64_t drr_version;
+#   uint64_t drr_creation_time;
+#   dmu_objset_type_t drr_type;
+#   uint32_t drr_pad;
+#   uint64_t drr_toguid;
+#   uint64_t drr_fromguid;
+#   char drr_toname[MAXNAMELEN];
+#
+# Backup magic is 0x00000002f5bacbac (quad word)
+# The drr_type is defined as
+#   typedef enum dmu_objset_type {
+#        DMU_OST_NONE,
+#        DMU_OST_META,
+#        DMU_OST_ZFS,
+#        DMU_OST_ZVOL,
+#        DMU_OST_OTHER,                  /* For testing only! */
+#        DMU_OST_ANY,                    /* Be careful! */
+#        DMU_OST_NUMTYPES
+#  } dmu_objset_type_t;
+#
+# Almost all uint64_t fields are printed as the 32-bit ones (with high
+# 32 bits zeroed), because there is no simple way to print them as the
+# full 64-bit values.
+
+# Big-endian values
+8      string  \000\000\000\002\365\272\313\254 ZFS shapshot (big-endian machine),
+>20    belong  x       version %lu,
+>32    belong  0       type: NONE,
+>32    belong  1       type: META,
+>32    belong  2       type: ZFS,
+>32    belong  3       type: ZVOL,
+>32    belong  4       type: OTHER,
+>32    belong  5       type: ANY,
+>32    belong  >5      type: UNKNOWN (%lu),
+>40    byte    x       destination GUID: %02X
+>41    byte    x       %02X
+>42    byte    x       %02X
+>43    byte    x       %02X
+>44    byte    x       %02X
+>45    byte    x       %02X
+>46    byte    x       %02X
+>47    byte    x       %02X,
+>48    ulong   >0
+>>52   ulong   >0
+>>>48  byte    x       source GUID: %02X
+>>>49  byte    x       %02X
+>>>50  byte    x       %02X
+>>>51  byte    x       %02X
+>>>52  byte    x       %02X
+>>>53  byte    x       %02X
+>>>54  byte    x       %02X
+>>>55  byte    x       %02X,
+>56    string  >\0     name: '%s'
+
+# Little-endian values
+8      string  \254\313\272\365\002\000\000\000        ZFS shapshot (little-endian machine),
+>16    lelong  x       version %lu,
+>32    lelong  0       type: NONE,
+>32    lelong  1       type: META,
+>32    lelong  2       type: ZFS,
+>32    lelong  3       type: ZVOL,
+>32    lelong  4       type: OTHER,
+>32    lelong  5       type: ANY,
+>32    lelong  >5      type: UNKNOWN (%lu),
+>47    byte    x       destination GUID: %02X
+>46    byte    x       %02X
+>45    byte    x       %02X
+>44    byte    x       %02X
+>43    byte    x       %02X
+>42    byte    x       %02X
+>41    byte    x       %02X
+>40    byte    x       %02X,
+>48    ulong   >0
+>>52   ulong   >0
+>>>55  byte    x       source GUID: %02X
+>>>54  byte    x       %02X
+>>>53  byte    x       %02X
+>>>52  byte    x       %02X
+>>>51  byte    x       %02X
+>>>50  byte    x       %02X
+>>>49  byte    x       %02X
+>>>48  byte    x       %02X,
+>56    string  >\0     name: '%s'