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git://sourceware.org/git/lvm2.git
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676b401294
- The iterator can find labels by string and also appropriate version number (==, <= or any) if you want. - Add labels_match() call that compares the two labels and returns an error if they do not match. - Write labels in sector 1 & last rather than 2 & last as per Joe.
32 lines
864 B
C
32 lines
864 B
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the GPL.
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*/
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struct label
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{
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uint32_t magic;
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uint32_t checksum;
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uint16_t datalen;
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char disk_type[32];
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uint32_t version[3];
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char *data; /* Should be freed with label_free() */
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};
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#define VERSION_MATCH_EQUAL 1
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#define VERSION_MATCH_LESSTHAN 2
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#define VERSION_MATCH_LESSEQUAL 3
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#define VERSION_MATCH_ANY 4
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extern int label_write(struct device *dev, struct label *label);
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extern int label_read(struct device *dev, struct label *label);
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extern void label_free(struct label *label);
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extern int is_labelled(struct device *dev);
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extern int labels_match(struct device *dev);
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extern struct dev_filter *label_filter_create();
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extern struct dev_filter *label_format_filter_create(char *disk_type, uint32_t version[3], int match_type);
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