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@@ -0,0 +1,74 @@
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+meta:
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+ id: netdata_datafile
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+ endian: le
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+
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+seq:
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+ - id: hdr
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+ type: header
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+ size: 4096
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+ - id: extents
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+ type: extent
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+ repeat: eos
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+
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+types:
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+ header:
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+ seq:
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+ - id: magic
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+ contents: "netdata-data-file"
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+ - id: reserved
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+ size: 15
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+ - id: version
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+ contents: "1.0"
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+ - id: reserved1
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+ size: 13
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+ - id: tier
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+ type: u1
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+ extent_page_descr:
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+ seq:
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+ - id: type
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+ type: u1
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+ enum: page_type
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+ - id: uuid
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+ size: 16
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+ - id: page_len
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+ type: u4
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+ - id: start_time_ut
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+ type: u8
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+ - id: end_time_ut
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+ type: u8
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+ enums:
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+ page_type:
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+ 0: metrics
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+ 1: tier
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+ extent_header:
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+ seq:
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+ - id: payload_length
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+ type: u4
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+ - id: compression_algorithm
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+ type: u1
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+ enum: compression_algos
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+ - id: number_of_pages
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+ type: u1
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+ - id: page_descriptors
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+ type: extent_page_descr
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+ repeat: expr
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+ repeat-expr: number_of_pages
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+ enums:
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+ compression_algos:
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+ 0: rrd_no_compression
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+ 1: rrd_lz4
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+ extent_trailer:
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+ seq:
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+ - id: crc32_checksum
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+ type: u4
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+ extent:
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+ seq:
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+ - id: header
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+ type: extent_header
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+ - id: payload
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+ size: header.payload_length
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+ - id: trailer
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+ type: extent_trailer
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+ - id: padding
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+ size: (((_io.pos + 4095) / 4096) * 4096) - _io.pos
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+ # the extent size is made to always be a multiple of 4096
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Timotej S