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299062a456
We were checking for the wrong magic value. We now need to use -f when running mkfs in run-tests for things to work. Signed-off-by: Andy Grover <agrover@versity.com>
95 lines
2.0 KiB
C
95 lines
2.0 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdbool.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <blkid/blkid.h>
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#include "util.h"
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#include "format.h"
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#include "blkid.h"
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static int check_bdev_blkid(int fd, char *devname, char *usage)
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{
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blkid_probe pr;
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int ret = 0;
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pr = blkid_new_probe_from_filename(devname);
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if (!pr) {
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fprintf(stderr, "%s: failed to create a new libblkid probe\n", devname);
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goto out;
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}
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/* enable partitions probing (superblocks are enabled by default) */
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ret = blkid_probe_enable_partitions(pr, true);
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if (ret == -1) {
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fprintf(stderr, "%s: blkid_probe_enable_partitions() failed\n", devname);
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goto out;
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}
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ret = blkid_do_fullprobe(pr);
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if (ret == -1) {
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fprintf(stderr, "%s: blkid_do_fullprobe() failed", devname);
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goto out;
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} else if (ret == 0) {
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const char *type;
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if (!blkid_probe_lookup_value(pr, "TYPE", &type, NULL)) {
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fprintf(stderr, "%s: appears to contain an existing "
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"%s superblock\n", devname, type);
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ret = -1;
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goto out;
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}
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if (!blkid_probe_lookup_value(pr, "PTTYPE", &type, NULL)) {
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fprintf(stderr, "%s: appears to contain a partition "
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"table (%s)\n", devname, type);
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ret = -1;
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goto out;
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}
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} else {
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/* return 0 if ok */
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ret = 0;
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}
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out:
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blkid_free_probe(pr);
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return ret;
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}
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static int check_bdev_scoutfs(int fd, char *devname, char *usage)
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{
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struct scoutfs_super_block *super = NULL;
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int ret;
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ret = read_block(fd, SCOUTFS_SUPER_BLKNO, SCOUTFS_BLOCK_SM_SHIFT, (void **)&super);
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if (ret)
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return ret;
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if (le32_to_cpu(super->hdr.magic) == SCOUTFS_BLOCK_MAGIC_SUPER) {
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fprintf(stderr, "%s: appears to contain an existing "
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"ScoutFS superblock\n", devname);
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ret = -EINVAL;
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}
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free(super);
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return ret;
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}
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/*
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* Returns -1 on error, 0 otherwise.
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*/
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int check_bdev(int fd, char *devname, char *usage)
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{
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return check_bdev_blkid(fd, devname, usage) ?:
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/* Our sig is not in blkid (yet) so check explicitly for us. */
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check_bdev_scoutfs(fd, devname, usage);
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}
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