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authorArtem Bityutskiy <artem.bityutskiy@intel.com>2013-04-11 13:05:08 +0300
committerArtem Bityutskiy <artem.bityutskiy@intel.com>2013-04-19 16:27:40 +0300
commitd40fca4cad1c6ef0b6bb2e0d39b462ea812b5854 (patch)
tree9d5965eb3259f52dcfbd8a52996d2b284d628ba0
parenta485287e08f25e231d29e889297280beac239363 (diff)
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gpt_parser: rename the parts_cnt dict key
The 'parts_cnt' header dictionary key is named poorly because this is actually the number of available partition table entries, not the number of partitions. Thus, rename it to 'entries_cnt'. Change-Id: I565ac7b700ab5ae3b1bb7c8aa503585465588db9 Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
-rw-r--r--mic/utils/gpt_parser.py62
1 files changed, 31 insertions, 31 deletions
diff --git a/mic/utils/gpt_parser.py b/mic/utils/gpt_parser.py
index 59b1640..ad76d03 100644
--- a/mic/utils/gpt_parser.py
+++ b/mic/utils/gpt_parser.py
@@ -122,21 +122,21 @@ class GptParser:
""" Read and verify the GPT header and return a dictionary containing
the following elements:
- 'signature' : header signature
- 'revision' : header revision
- 'hdr_size' : header size in bytes
- 'hdr_crc' : header CRC32
- 'hdr_lba' : LBA of this header
- 'backup_lba' : backup hader LBA
- 'first_lba' : first usable LBA for partitions
- 'last_lba' : last usable LBA for partitions
- 'disk_uuid' : UUID of the disk
- 'ptable_lba' : starting LBA of array of partition entries
- 'parts_cnt' : number of partition entries
- 'entry_size' : size of a single partition entry
- 'ptable_crc' : CRC32 of the partition table
- 'primary' : a boolean, if 'True', this is the primary GPT header,
- if 'False' - the secondary
+ 'signature' : header signature
+ 'revision' : header revision
+ 'hdr_size' : header size in bytes
+ 'hdr_crc' : header CRC32
+ 'hdr_lba' : LBA of this header
+ 'backup_lba' : backup hader LBA
+ 'first_lba' : first usable LBA for partitions
+ 'last_lba' : last usable LBA for partitions
+ 'disk_uuid' : UUID of the disk
+ 'ptable_lba' : starting LBA of array of partition entries
+ 'entries_cnt' : number of available partition table entries
+ 'entry_size' : size of a single partition entry
+ 'ptable_crc' : CRC32 of the partition table
+ 'primary' : a boolean, if 'True', this is the primary GPT header,
+ if 'False' - the secondary
This dictionary corresponds to the GPT header format. Please, see the
UEFI standard for the description of these fields.
@@ -154,20 +154,20 @@ class GptParser:
raw_hdr = struct.unpack(_GPT_HEADER_FORMAT, raw_hdr)
_validate_header(raw_hdr)
- return { 'signature' : raw_hdr[0],
- 'revision' : raw_hdr[1],
- 'hdr_size' : raw_hdr[2],
- 'hdr_crc' : raw_hdr[3],
- 'hdr_lba' : raw_hdr[5],
- 'backup_lba' : raw_hdr[6],
- 'first_lba' : raw_hdr[7],
- 'last_lba' : raw_hdr[8],
- 'disk_uuid' :_stringify_uuid(raw_hdr[9]),
- 'ptable_lba' : raw_hdr[10],
- 'parts_cnt' : raw_hdr[11],
- 'entry_size' : raw_hdr[12],
- 'ptable_crc' : raw_hdr[13],
- 'primary' : primary }
+ return { 'signature' : raw_hdr[0],
+ 'revision' : raw_hdr[1],
+ 'hdr_size' : raw_hdr[2],
+ 'hdr_crc' : raw_hdr[3],
+ 'hdr_lba' : raw_hdr[5],
+ 'backup_lba' : raw_hdr[6],
+ 'first_lba' : raw_hdr[7],
+ 'last_lba' : raw_hdr[8],
+ 'disk_uuid' :_stringify_uuid(raw_hdr[9]),
+ 'ptable_lba' : raw_hdr[10],
+ 'entries_cnt' : raw_hdr[11],
+ 'entry_size' : raw_hdr[12],
+ 'ptable_crc' : raw_hdr[13],
+ 'primary' : primary }
def _read_raw_ptable(self, header):
""" Read and validate primary or backup partition table. The 'header'
@@ -177,7 +177,7 @@ class GptParser:
'read_header()' method. """
raw_ptable = self._read_disk(header['ptable_lba'] * self.sector_size,
- header['entry_size'] * header['parts_cnt'])
+ header['entry_size'] * header['entries_cnt'])
crc = binascii.crc32(raw_ptable) & 0xFFFFFFFF
if crc != header['ptable_crc']:
@@ -210,7 +210,7 @@ class GptParser:
header = self.read_header(primary)
raw_ptable = self._read_raw_ptable(header)
- for index in xrange(0, header['parts_cnt']):
+ for index in xrange(0, header['entries_cnt']):
start = header['entry_size'] * index
end = start + header['entry_size']
raw_entry = struct.unpack(_GPT_ENTRY_FORMAT, raw_ptable[start:end])