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If device is not rotational, do not use Gutmann wipe method.

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git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@615 36d66b0a-2a48-0410-832c-cd162a569da5
This commit is contained in:
Milan Broz
2011-10-08 16:17:08 +00:00
parent 61bec51be0
commit d2fbc963ca
8 changed files with 221 additions and 103 deletions
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23
lib/utils_devpath.c
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@@ -242,3 +242,26 @@ int crypt_sysfs_check_crypt_segment(const char *device, uint64_t offset, uint64_
return r;
}
int crypt_sysfs_get_rotational(int major, int minor, int *rotational)
{
char path[PATH_MAX], tmp[64] = {0};
int fd, r;
if (snprintf(path, sizeof(path), "/sys/dev/block/%d:%d/queue/rotational",
major, minor) < 0)
return 0;
if ((fd = open(path, O_RDONLY)) < 0)
return 0;
r = read(fd, tmp, sizeof(tmp));
close(fd);
if (r <= 0)
return 0;
if (sscanf(tmp, "%d", rotational) != 1)
return 0;
return 1;
}