mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-24 15:12:47 +00:00
2a74c0e4ee
We can use the new BTRFS_IOC_GET_SUBVOL_ROOTREF and BTRFS_IOC_INO_LOOKUP_USER ioctls to allow non-root users to list subvolumes. This is based on a patch from Misono Tomohiro but takes a different approach (mainly, this approach is more similar to the existing tree search approach). Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
64 lines
2.9 KiB
C
64 lines
2.9 KiB
C
/*
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* Copyright (C) 2018 Facebook
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*
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* This file is part of libbtrfsutil.
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*
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* libbtrfsutil is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* libbtrfsutil is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stddef.h>
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#include "btrfsutil_internal.h"
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static const char * const error_messages[] = {
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[BTRFS_UTIL_OK] = "Success",
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[BTRFS_UTIL_ERROR_STOP_ITERATION] = "Stop iteration",
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[BTRFS_UTIL_ERROR_NO_MEMORY] = "Cannot allocate memory",
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[BTRFS_UTIL_ERROR_INVALID_ARGUMENT] = "Invalid argument",
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[BTRFS_UTIL_ERROR_NOT_BTRFS] = "Not a Btrfs filesystem",
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[BTRFS_UTIL_ERROR_NOT_SUBVOLUME] = "Not a Btrfs subvolume",
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[BTRFS_UTIL_ERROR_SUBVOLUME_NOT_FOUND] = "Subvolume not found",
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[BTRFS_UTIL_ERROR_OPEN_FAILED] = "Could not open",
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[BTRFS_UTIL_ERROR_RMDIR_FAILED] = "Could not rmdir",
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[BTRFS_UTIL_ERROR_UNLINK_FAILED] = "Could not unlink",
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[BTRFS_UTIL_ERROR_STAT_FAILED] = "Could not stat",
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[BTRFS_UTIL_ERROR_STATFS_FAILED] = "Could not statfs",
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[BTRFS_UTIL_ERROR_SEARCH_FAILED] = "Could not search B-tree",
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[BTRFS_UTIL_ERROR_INO_LOOKUP_FAILED] = "Could not lookup inode",
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[BTRFS_UTIL_ERROR_SUBVOL_GETFLAGS_FAILED] = "Could not get subvolume flags",
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[BTRFS_UTIL_ERROR_SUBVOL_SETFLAGS_FAILED] = "Could not set subvolume flags",
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[BTRFS_UTIL_ERROR_SUBVOL_CREATE_FAILED] = "Could not create subvolume",
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[BTRFS_UTIL_ERROR_SNAP_CREATE_FAILED] = "Could not create snapshot",
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[BTRFS_UTIL_ERROR_SNAP_DESTROY_FAILED] = "Could not destroy subvolume/snapshot",
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[BTRFS_UTIL_ERROR_DEFAULT_SUBVOL_FAILED] = "Could not set default subvolume",
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[BTRFS_UTIL_ERROR_SYNC_FAILED] = "Could not sync filesystem",
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[BTRFS_UTIL_ERROR_START_SYNC_FAILED] = "Could not start filesystem sync",
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[BTRFS_UTIL_ERROR_WAIT_SYNC_FAILED] = "Could not wait for filesystem sync",
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[BTRFS_UTIL_ERROR_GET_SUBVOL_INFO_FAILED] =
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"Could not get subvolume information with BTRFS_IOC_GET_SUBVOL_INFO",
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[BTRFS_UTIL_ERROR_GET_SUBVOL_ROOTREF_FAILED] =
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"Could not get rootref information with BTRFS_IOC_GET_SUBVOL_ROOTREF",
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[BTRFS_UTIL_ERROR_INO_LOOKUP_USER_FAILED] =
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"Could not resolve subvolume path with BTRFS_IOC_INO_LOOKUP_USER",
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[BTRFS_UTIL_ERROR_FS_INFO_FAILED] =
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"Could not get filesystem information",
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};
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PUBLIC const char *btrfs_util_strerror(enum btrfs_util_error err)
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{
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if (err < 0 || err >= sizeof(error_messages) / sizeof(error_messages[0]))
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return NULL;
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return error_messages[err];
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}
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