2021-01-22 09:36:21 +00:00
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/*
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* storage_source.h: file utility functions for FS storage backend
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*
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* Copyright (C) 2007-2009, 2012-2016 Red Hat, Inc.
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* Copyright (C) 2007-2008 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* 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
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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2021-01-21 14:44:53 +00:00
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#include "storage_source_conf.h"
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2021-01-22 09:36:21 +00:00
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#ifndef DEV_BSIZE
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# define DEV_BSIZE 512
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#endif
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virStorageSourcePtr
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virStorageSourceGetMetadataFromFD(const char *path,
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int fd,
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int format);
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virStorageSourcePtr
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virStorageSourceGetMetadataFromBuf(const char *path,
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char *buf,
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size_t len,
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int format)
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2021-01-22 09:36:21 +00:00
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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virStorageSourcePtr
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virStorageSourceChainLookup(virStorageSourcePtr chain,
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virStorageSourcePtr startFrom,
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const char *name,
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unsigned int idx,
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virStorageSourcePtr *parent)
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ATTRIBUTE_NONNULL(1);
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int
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virStorageSourceUpdatePhysicalSize(virStorageSourcePtr src,
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int fd,
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struct stat const *sb);
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int
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virStorageSourceUpdateBackingSizes(virStorageSourcePtr src,
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int fd,
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struct stat const *sb);
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int
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virStorageSourceUpdateCapacity(virStorageSourcePtr src,
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char *buf,
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ssize_t len);
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int
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virStorageSourceNewFromBacking(virStorageSourcePtr parent,
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virStorageSourcePtr *backing);
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int
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virStorageSourceParseRBDColonString(const char *rbdstr,
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virStorageSourcePtr src)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int
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virStorageSourceGetRelativeBackingPath(virStorageSourcePtr top,
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virStorageSourcePtr base,
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char **relpath)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
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int
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virStorageSourceNewFromBackingAbsolute(const char *path,
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virStorageSourcePtr *src);
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int
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virStorageSourceInit(virStorageSourcePtr src);
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int
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virStorageSourceInitAs(virStorageSourcePtr src,
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uid_t uid, gid_t gid);
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void
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virStorageSourceDeinit(virStorageSourcePtr src);
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int
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virStorageSourceCreate(virStorageSourcePtr src);
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int
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virStorageSourceUnlink(virStorageSourcePtr src);
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int
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virStorageSourceStat(virStorageSourcePtr src,
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struct stat *st);
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ssize_t
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virStorageSourceRead(virStorageSourcePtr src,
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size_t offset,
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size_t len,
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char **buf);
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const char *
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virStorageSourceGetUniqueIdentifier(virStorageSourcePtr src);
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int
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virStorageSourceAccess(virStorageSourcePtr src,
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int mode);
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int
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virStorageSourceChown(const virStorageSource *src,
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uid_t uid,
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gid_t gid);
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int
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virStorageSourceSupportsSecurityDriver(const virStorageSource *src);
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int
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virStorageSourceSupportsAccess(const virStorageSource *src);
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int
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virStorageSourceSupportsCreate(const virStorageSource *src);
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int
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virStorageSourceSupportsBackingChainTraversal(const virStorageSource *src);
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int
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virStorageSourceGetMetadata(virStorageSourcePtr src,
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uid_t uid, gid_t gid,
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bool report_broken)
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ATTRIBUTE_NONNULL(1);
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int
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2021-01-22 14:08:23 +00:00
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virStorageSourceFetchRelativeBackingPath(virStorageSourcePtr src,
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char **relPath)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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void
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virStorageSourceReportBrokenChain(int errcode,
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virStorageSourcePtr src,
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virStorageSourcePtr parent);
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