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Systemd/src/test/test-btrfs.c
Lennart Poettering 0c69794138 tree-wide: remove Lennart's copyright lines 
These lines are generally out-of-date, incomplete and unnecessary. With
SPDX and git repository much more accurate and fine grained information
about licensing and authorship is available, hence let's drop the
per-file copyright notice. Of course, removing copyright lines of others
is problematic, hence this commit only removes my own lines and leaves
all others untouched. It might be nicer if sooner or later those could
go away too, making git the only and accurate source of authorship
information.
2018-06-14 10:20:20 +02:00

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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <fcntl.h>
#include "btrfs-util.h"
#include "fd-util.h"
#include "fileio.h"
#include "log.h"
#include "parse-util.h"
#include "string-util.h"
#include "util.h"
int main(int argc, char *argv[]) {
BtrfsQuotaInfo quota;
int r, fd;
fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY);
if (fd < 0)
log_error_errno(errno, "Failed to open root directory: %m");
else {
char ts[FORMAT_TIMESTAMP_MAX], bs[FORMAT_BYTES_MAX];
BtrfsSubvolInfo info;
r = btrfs_subvol_get_info_fd(fd, 0, &info);
if (r < 0)
log_error_errno(r, "Failed to get subvolume info: %m");
else {
log_info("otime: %s", format_timestamp(ts, sizeof(ts), info.otime));
log_info("read-only (search): %s", yes_no(info.read_only));
}
r = btrfs_qgroup_get_quota_fd(fd, 0, &quota);
if (r < 0)
log_error_errno(r, "Failed to get quota info: %m");
else {
log_info("referenced: %s", strna(format_bytes(bs, sizeof(bs), quota.referenced)));
log_info("exclusive: %s", strna(format_bytes(bs, sizeof(bs), quota.exclusive)));
log_info("referenced_max: %s", strna(format_bytes(bs, sizeof(bs), quota.referenced_max)));
log_info("exclusive_max: %s", strna(format_bytes(bs, sizeof(bs), quota.exclusive_max)));
}
r = btrfs_subvol_get_read_only_fd(fd);
if (r < 0)
log_error_errno(r, "Failed to get read only flag: %m");
else
log_info("read-only (ioctl): %s", yes_no(r));
safe_close(fd);
}
r = btrfs_subvol_make("/xxxtest");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
r = write_string_file("/xxxtest/afile", "ljsadhfljasdkfhlkjdsfha", WRITE_STRING_FILE_CREATE);
if (r < 0)
log_error_errno(r, "Failed to write file: %m");
r = btrfs_subvol_snapshot("/xxxtest", "/xxxtest2", 0);
if (r < 0)
log_error_errno(r, "Failed to make snapshot: %m");
r = btrfs_subvol_snapshot("/xxxtest", "/xxxtest3", BTRFS_SNAPSHOT_READ_ONLY);
if (r < 0)
log_error_errno(r, "Failed to make snapshot: %m");
r = btrfs_subvol_remove("/xxxtest", BTRFS_REMOVE_QUOTA);
if (r < 0)
log_error_errno(r, "Failed to remove subvolume: %m");
r = btrfs_subvol_remove("/xxxtest2", BTRFS_REMOVE_QUOTA);
if (r < 0)
log_error_errno(r, "Failed to remove subvolume: %m");
r = btrfs_subvol_remove("/xxxtest3", BTRFS_REMOVE_QUOTA);
if (r < 0)
log_error_errno(r, "Failed to remove subvolume: %m");
r = btrfs_subvol_snapshot("/etc", "/etc2", BTRFS_SNAPSHOT_READ_ONLY|BTRFS_SNAPSHOT_FALLBACK_COPY);
if (r < 0)
log_error_errno(r, "Failed to make snapshot: %m");
r = btrfs_subvol_remove("/etc2", BTRFS_REMOVE_QUOTA);
if (r < 0)
log_error_errno(r, "Failed to remove subvolume: %m");
r = btrfs_subvol_make("/xxxrectest");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
r = btrfs_subvol_make("/xxxrectest/xxxrectest2");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
r = btrfs_subvol_make("/xxxrectest/xxxrectest3");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
r = btrfs_subvol_make("/xxxrectest/xxxrectest3/sub");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
if (mkdir("/xxxrectest/dir", 0755) < 0)
log_error_errno(errno, "Failed to make directory: %m");
r = btrfs_subvol_make("/xxxrectest/dir/xxxrectest4");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
if (mkdir("/xxxrectest/dir/xxxrectest4/dir", 0755) < 0)
log_error_errno(errno, "Failed to make directory: %m");
r = btrfs_subvol_make("/xxxrectest/dir/xxxrectest4/dir/xxxrectest5");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
if (mkdir("/xxxrectest/mnt", 0755) < 0)
log_error_errno(errno, "Failed to make directory: %m");
r = btrfs_subvol_snapshot("/xxxrectest", "/xxxrectest2", BTRFS_SNAPSHOT_RECURSIVE);
if (r < 0)
log_error_errno(r, "Failed to snapshot subvolume: %m");
r = btrfs_subvol_remove("/xxxrectest", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE);
if (r < 0)
log_error_errno(r, "Failed to recursively remove subvolume: %m");
r = btrfs_subvol_remove("/xxxrectest2", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE);
if (r < 0)
log_error_errno(r, "Failed to recursively remove subvolume: %m");
r = btrfs_subvol_make("/xxxquotatest");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
r = btrfs_subvol_auto_qgroup("/xxxquotatest", 0, true);
if (r < 0)
log_error_errno(r, "Failed to set up auto qgroup: %m");
r = btrfs_subvol_make("/xxxquotatest/beneath");
if (r < 0)
log_error_errno(r, "Failed to make subvolume: %m");
r = btrfs_subvol_auto_qgroup("/xxxquotatest/beneath", 0, false);
if (r < 0)
log_error_errno(r, "Failed to set up auto qgroup: %m");
r = btrfs_qgroup_set_limit("/xxxquotatest/beneath", 0, 4ULL * 1024 * 1024 * 1024);
if (r < 0)
log_error_errno(r, "Failed to set up quota limit: %m");
r = btrfs_subvol_set_subtree_quota_limit("/xxxquotatest", 0, 5ULL * 1024 * 1024 * 1024);
if (r < 0)
log_error_errno(r, "Failed to set up quota limit: %m");
r = btrfs_subvol_snapshot("/xxxquotatest", "/xxxquotatest2", BTRFS_SNAPSHOT_RECURSIVE|BTRFS_SNAPSHOT_QUOTA);
if (r < 0)
log_error_errno(r, "Failed to setup snapshot: %m");
r = btrfs_qgroup_get_quota("/xxxquotatest2/beneath", 0, &quota);
if (r < 0)
log_error_errno(r, "Failed to query quota: %m");
assert_se(quota.referenced_max == 4ULL * 1024 * 1024 * 1024);
r = btrfs_subvol_get_subtree_quota("/xxxquotatest2", 0, &quota);
if (r < 0)
log_error_errno(r, "Failed to query quota: %m");
assert_se(quota.referenced_max == 5ULL * 1024 * 1024 * 1024);
r = btrfs_subvol_remove("/xxxquotatest", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE);
if (r < 0)
log_error_errno(r, "Failed remove subvolume: %m");
r = btrfs_subvol_remove("/xxxquotatest2", BTRFS_REMOVE_QUOTA|BTRFS_REMOVE_RECURSIVE);
if (r < 0)
log_error_errno(r, "Failed remove subvolume: %m");
return 0;
}
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