/// <exception cref="System.IO.IOException"/>
private static void UnprotectedRemoveAcl(FSDirectory fsd, INodesInPath iip)
{
System.Diagnostics.Debug.Assert(fsd.HasWriteLock());
INode inode = FSDirectory.ResolveLastINode(iip);
int snapshotId = iip.GetLatestSnapshotId();
AclFeature f = inode.GetAclFeature();
if (f == null)
{
return;
}
FsPermission perm = inode.GetFsPermission();
IList <AclEntry> featureEntries = AclStorage.GetEntriesFromAclFeature(f);
if (featureEntries[0].GetScope() == AclEntryScope.Access)
{
// Restore group permissions from the feature's entry to permission
// bits, overwriting the mask, which is not part of a minimal ACL.
AclEntry groupEntryKey = new AclEntry.Builder().SetScope(AclEntryScope.Access).SetType
(AclEntryType.Group).Build();
int groupEntryIndex = Sharpen.Collections.BinarySearch(featureEntries, groupEntryKey
, AclTransformation.AclEntryComparator);
System.Diagnostics.Debug.Assert(groupEntryIndex >= 0);
FsAction groupPerm = featureEntries[groupEntryIndex].GetPermission();
FsPermission newPerm = new FsPermission(perm.GetUserAction(), groupPerm, perm.GetOtherAction
(), perm.GetStickyBit());
inode.SetPermission(newPerm, snapshotId);
}
inode.RemoveAclFeature(snapshotId);
}
/// <exception cref="System.IO.IOException"/>
internal static HdfsFileStatus RemoveDefaultAcl(FSDirectory fsd, string srcArg)
{
string src = srcArg;
CheckAclsConfigFlag(fsd);
FSPermissionChecker pc = fsd.GetPermissionChecker();
byte[][] pathComponents = FSDirectory.GetPathComponentsForReservedPath(src);
src = fsd.ResolvePath(pc, src, pathComponents);
INodesInPath iip;
fsd.WriteLock();
try
{
iip = fsd.GetINodesInPath4Write(FSDirectory.NormalizePath(src), true);
fsd.CheckOwner(pc, iip);
INode inode = FSDirectory.ResolveLastINode(iip);
int snapshotId = iip.GetLatestSnapshotId();
IList <AclEntry> existingAcl = AclStorage.ReadINodeLogicalAcl(inode);
IList <AclEntry> newAcl = AclTransformation.FilterDefaultAclEntries(existingAcl);
AclStorage.UpdateINodeAcl(inode, newAcl, snapshotId);
fsd.GetEditLog().LogSetAcl(src, newAcl);
}
finally
{
fsd.WriteUnlock();
}
return(fsd.GetAuditFileInfo(iip));
}
public override void DestroyAndCollectBlocks(BlockStoragePolicySuite bsps, INode.BlocksMapUpdateInfo
collectedBlocks, IList <INode> removedINodes)
{
if (blocks != null && collectedBlocks != null)
{
foreach (BlockInfoContiguous blk in blocks)
{
collectedBlocks.AddDeleteBlock(blk);
blk.SetBlockCollection(null);
}
}
SetBlocks(null);
if (GetAclFeature() != null)
{
AclStorage.RemoveAclFeature(GetAclFeature());
}
Clear();
removedINodes.AddItem(this);
FileWithSnapshotFeature sf = GetFileWithSnapshotFeature();
if (sf != null)
{
sf.GetDiffs().DestroyAndCollectSnapshotBlocks(collectedBlocks);
sf.ClearDiffs();
}
}
/// <exception cref="System.IO.IOException"/>
internal static IList <AclEntry> UnprotectedSetAcl(FSDirectory fsd, string src, IList
<AclEntry> aclSpec, bool fromEdits)
{
System.Diagnostics.Debug.Assert(fsd.HasWriteLock());
INodesInPath iip = fsd.GetINodesInPath4Write(FSDirectory.NormalizePath(src), true
);
// ACL removal is logged to edits as OP_SET_ACL with an empty list.
if (aclSpec.IsEmpty())
{
UnprotectedRemoveAcl(fsd, iip);
return(AclFeature.EmptyEntryList);
}
INode inode = FSDirectory.ResolveLastINode(iip);
int snapshotId = iip.GetLatestSnapshotId();
IList <AclEntry> newAcl = aclSpec;
if (!fromEdits)
{
IList <AclEntry> existingAcl = AclStorage.ReadINodeLogicalAcl(inode);
newAcl = AclTransformation.ReplaceAclEntries(existingAcl, aclSpec);
}
AclStorage.UpdateINodeAcl(inode, newAcl, snapshotId);
return(newAcl);
}
internal override void RemoveAclFeature()
{
AclFeature f = GetAclFeature();
Preconditions.CheckNotNull(f);
RemoveFeature(f);
AclStorage.RemoveAclFeature(f);
}
internal override void AddAclFeature(AclFeature f)
{
AclFeature f1 = GetAclFeature();
if (f1 != null)
{
throw new InvalidOperationException("Duplicated ACLFeature");
}
AddFeature(AclStorage.AddAclFeature(f));
}
internal SnapshotCopy(byte[] name, PermissionStatus permissions, AclFeature aclFeature
, long modificationTime, long accessTime, XAttrFeature xAttrFeature)
{
this.name = name;
this.permission = INodeWithAdditionalFields.PermissionStatusFormat.ToLong(permissions
);
if (aclFeature != null)
{
aclFeature = AclStorage.AddAclFeature(aclFeature);
}
this.aclFeature = aclFeature;
this.modificationTime = modificationTime;
this.accessTime = accessTime;
this.xAttrFeature = xAttrFeature;
}
internal SnapshotCopy(INode inode)
{
this.name = inode.GetLocalNameBytes();
this.permission = inode.GetPermissionLong();
if (inode.GetAclFeature() != null)
{
aclFeature = AclStorage.AddAclFeature(inode.GetAclFeature());
}
else
{
aclFeature = null;
}
this.modificationTime = inode.GetModificationTime();
this.accessTime = inode.GetAccessTime();
this.xAttrFeature = inode.GetXAttrFeature();
}
/// <summary>create a directory at path specified by parent</summary>
/// <exception cref="Org.Apache.Hadoop.Hdfs.Protocol.QuotaExceededException"/>
/// <exception cref="Org.Apache.Hadoop.Hdfs.Protocol.AclException"/>
/// <exception cref="Org.Apache.Hadoop.FS.FileAlreadyExistsException"/>
private static INodesInPath UnprotectedMkdir(FSDirectory fsd, long inodeId, INodesInPath
parent, byte[] name, PermissionStatus permission, IList <AclEntry> aclEntries, long
timestamp)
{
System.Diagnostics.Debug.Assert(fsd.HasWriteLock());
System.Diagnostics.Debug.Assert(parent.GetLastINode() != null);
if (!parent.GetLastINode().IsDirectory())
{
throw new FileAlreadyExistsException("Parent path is not a directory: " + parent.
GetPath() + " " + DFSUtil.Bytes2String(name));
}
INodeDirectory dir = new INodeDirectory(inodeId, name, permission, timestamp);
INodesInPath iip = fsd.AddLastINode(parent, dir, true);
if (iip != null && aclEntries != null)
{
AclStorage.UpdateINodeAcl(dir, aclEntries, Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot
.CurrentStateId);
}
return(iip);
}
public override void DestroyAndCollectBlocks(BlockStoragePolicySuite bsps, INode.BlocksMapUpdateInfo
collectedBlocks, IList <INode> removedINodes)
{
DirectoryWithSnapshotFeature sf = GetDirectoryWithSnapshotFeature();
if (sf != null)
{
sf.Clear(bsps, this, collectedBlocks, removedINodes);
}
foreach (INode child in GetChildrenList(Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot
.CurrentStateId))
{
child.DestroyAndCollectBlocks(bsps, collectedBlocks, removedINodes);
}
if (GetAclFeature() != null)
{
AclStorage.RemoveAclFeature(GetAclFeature());
}
Clear();
removedINodes.AddItem(this);
}
/// <summary>Copy constructor</summary>
/// <param name="other">The INodeDirectory to be copied</param>
/// <param name="adopt">
/// Indicate whether or not need to set the parent field of child
/// INodes to the new node
/// </param>
/// <param name="featuresToCopy">
/// any number of features to copy to the new node.
/// The method will do a reference copy, not a deep copy.
/// </param>
public INodeDirectory(Org.Apache.Hadoop.Hdfs.Server.Namenode.INodeDirectory other
, bool adopt, params INode.Feature[] featuresToCopy)
: base(other)
{
this.children = other.children;
if (adopt && this.children != null)
{
foreach (INode child in children)
{
child.SetParent(this);
}
}
this.features = featuresToCopy;
AclFeature aclFeature = GetFeature(typeof(AclFeature));
if (aclFeature != null)
{
// for the de-duplication of AclFeature
RemoveFeature(aclFeature);
AddFeature(AclStorage.AddAclFeature(aclFeature));
}
}
/// <exception cref="System.IO.IOException"/>
internal static AclStatus GetAclStatus(FSDirectory fsd, string src)
{
CheckAclsConfigFlag(fsd);
FSPermissionChecker pc = fsd.GetPermissionChecker();
byte[][] pathComponents = FSDirectory.GetPathComponentsForReservedPath(src);
src = fsd.ResolvePath(pc, src, pathComponents);
string srcs = FSDirectory.NormalizePath(src);
fsd.ReadLock();
try
{
// There is no real inode for the path ending in ".snapshot", so return a
// non-null, unpopulated AclStatus. This is similar to getFileInfo.
if (srcs.EndsWith(HdfsConstants.SeparatorDotSnapshotDir) && fsd.GetINode4DotSnapshot
(srcs) != null)
{
return(new AclStatus.Builder().Owner(string.Empty).Group(string.Empty).Build());
}
INodesInPath iip = fsd.GetINodesInPath(srcs, true);
if (fsd.IsPermissionEnabled())
{
fsd.CheckTraverse(pc, iip);
}
INode inode = FSDirectory.ResolveLastINode(iip);
int snapshotId = iip.GetPathSnapshotId();
IList <AclEntry> acl = AclStorage.ReadINodeAcl(fsd.GetAttributes(src, inode.GetLocalNameBytes
(), inode, snapshotId));
FsPermission fsPermission = inode.GetFsPermission(snapshotId);
return(new AclStatus.Builder().Owner(inode.GetUserName()).Group(inode.GetGroupName
()).StickyBit(fsPermission.GetStickyBit()).SetPermission(fsPermission).AddEntries
(acl).Build());
}
finally
{
fsd.ReadUnlock();
}
}
/// <exception cref="System.IO.IOException"/>
private void AddAcl(INodeWithAdditionalFields inode, params AclEntry[] acl)
{
AclStorage.UpdateINodeAcl(inode, Arrays.AsList(acl), Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot
.CurrentStateId);
}
