12158a28d4
this will provide the image data and information via file # ls -l /tmp/ -rwxrwxrwx 3 arch -rwxrwxrwx 12 compression -rwxrwxrwx 16 name -rwxrwxrwx 5 os -rwxrwxrwx 24 time -rwxrwxrwx 12 type -rwxrwxrwx 10 load_addr -rwxrwxrwx 10 entry_point -rwxrwxrwx 2199875 data0 -rwxrwxrwx 2199875 data -rwxrwxrwx 10 data.crc if it's multi image # ls -l /tmp-multi/ -rwxrwxrwx 3 arch -rwxrwxrwx 12 compression -rwxrwxrwx 16 name -rwxrwxrwx 5 os -rwxrwxrwx 24 time -rwxrwxrwx 16 type -rwxrwxrwx 10 load_addr -rwxrwxrwx 10 entry_point -rwxrwxrwx 1292 data0 -rwxrwxrwx 983 data1 -rwxrwxrwx 2287 data -rwxrwxrwx 10 data.crc you can get the image header via an ioctl on any file UIMAGEFS_METADATA if you want to check the crc do # crc32 -f /tmp-multi/data -V /tmp-multi/data.crc CRC32 for /tmp-multi/data 0x00000000 ... 0x000008ee ==> 0x88d5a0db Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
54 lines
870 B
C
54 lines
870 B
C
/*
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* Copyright (c) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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*
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* under GPLv2 only
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*/
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#ifndef __UIMAGEFS_H__
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#define __UIMAGEFS_H__
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#include <linux/types.h>
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#include <linux/list.h>
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#include <image.h>
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#include <ioctl.h>
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#define UIMAGEFS_METADATA _IOR('U', 100, struct image_header)
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enum uimagefs_type {
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UIMAGEFS_DATA,
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UIMAGEFS_DATA_CRC,
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UIMAGEFS_NAME,
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UIMAGEFS_TIME,
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UIMAGEFS_LOAD,
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UIMAGEFS_EP,
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UIMAGEFS_OS,
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UIMAGEFS_ARCH,
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UIMAGEFS_TYPE,
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UIMAGEFS_COMP,
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};
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struct uimagefs_handle_data {
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char *name;
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enum uimagefs_type type;
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uint64_t size;
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int fd;
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size_t offset; /* offset in the image */
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size_t pos; /* pos in the data */
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char *data;
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struct list_head list;
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};
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struct uimagefs_handle {
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struct image_header header;
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int nb_data_entries;
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char *filename;
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char *tmp;
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struct list_head list;
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};
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#endif /* __UIMAGEFS_H__ */
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