nfs4: Support delegations of created files

src/add-ons/kernel/file_systems/nfs4/Inode.h

@@ -59,7 +59,8 @@ public:
 					status_t	WriteStat(const struct stat* st, uint32 mask);
 
 					status_t	Create(const char* name, int mode, int perms,
-									OpenFileCookie* cookie, ino_t* id);
+									OpenFileCookie* cookie,
+									OpenDelegationData* data, ino_t* id);
 					status_t	Open(int mode, OpenFileCookie* cookie);
 					status_t	Close(OpenFileCookie* cookie);
 					status_t	Read(OpenFileCookie* cookie, off_t pos,
@@ -89,7 +90,8 @@ protected:
 								Inode();
 
 					status_t	CreateState(const char* name, int mode,
-									int perms, OpenState* state);
+									int perms, OpenState* state,
+									OpenDelegationData* data);
 
 					status_t	ReadDirUp(struct dirent* de, uint32 pos,
 									uint32 size);

src/add-ons/kernel/file_systems/nfs4/InodeRegular.cpp

@@ -20,13 +20,14 @@
 
 
 status_t
-Inode::CreateState(const char* name, int mode, int perms, OpenState* state) {
+Inode::CreateState(const char* name, int mode, int perms, OpenState* state,
+	OpenDelegationData* delegationData) {
 	uint64 fileID;
 	FileHandle handle;
 	ChangeInfo changeInfo;
 
 	status_t result = CreateFile(name, mode, perms, state, &changeInfo,
-		&fileID, &handle);
+		&fileID, &handle, delegationData);
 	if (result != B_OK)
 		return result;
 
@@ -64,7 +65,7 @@ Inode::CreateState(const char* name, int mode, int perms, OpenState* state) {
 
 status_t
 Inode::Create(const char* name, int mode, int perms, OpenFileCookie* cookie,
-	ino_t* id)
+	OpenDelegationData* data, ino_t* id)
 {
 	cookie->fMode = mode;
 	cookie->fLocks = NULL;
@@ -72,7 +73,7 @@ Inode::Create(const char* name, int mode, int perms, OpenFileCookie* cookie,
 	MutexLocker _(fStateLock);
 
 	OpenState* state = new OpenState;
-	status_t result = CreateState(name, mode, perms, state);
+	status_t result = CreateState(name, mode, perms, state, data);
 	if (result != B_OK)
 		return result;
 
@@ -99,6 +100,8 @@ Inode::Open(int mode, OpenFileCookie* cookie)
 	OpenDelegationData data;
 	data.fType = OPEN_DELEGATE_NONE;
 	if (fOpenState == NULL) {
+		// TODO: revalidate cache
+
 		OpenState* state = new OpenState;
 		if (state == NULL)
 			return B_NO_MEMORY;

src/add-ons/kernel/file_systems/nfs4/NFS4Inode.cpp

@@ -381,15 +381,14 @@ NFS4Inode::Rename(Inode* from, Inode* to, const char* fromName,
 
 
 status_t
-NFS4Inode::CreateFile(const char* name, int mode, int perms,
-	OpenState* state, ChangeInfo* changeInfo, uint64* fileID,
-	FileHandle* handle)
+NFS4Inode::CreateFile(const char* name, int mode, int perms, OpenState* state,
+	ChangeInfo* changeInfo, uint64* fileID, FileHandle* handle,
+	OpenDelegationData* delegation)
 {
 	bool confirm;
 	status_t result;
 
 	bool badOwner = false;
-	OpenDelegationData delegation;
 	uint32 sequence = fFileSystem->OpenOwnerSequenceLock();
 	do {
 		state->fClientID = fFileSystem->NFSServer()->ClientId();
@@ -461,7 +460,7 @@ NFS4Inode::CreateFile(const char* name, int mode, int perms,
 		reply.PutFH();
 
 		result = reply.Open(state->fStateID, &state->fStateSeq, &confirm,
-			&delegation, changeInfo);
+			delegation, changeInfo);
 		if (result != B_OK)
 			return result;
 

src/add-ons/kernel/file_systems/nfs4/NFS4Inode.h

@@ -46,7 +46,8 @@ protected:
 
 			status_t	CreateFile(const char* name, int mode, int perms,
 							OpenState* state, ChangeInfo* changeInfo,
-							uint64* fileID, FileHandle* handle);
+							uint64* fileID, FileHandle* handle,
+							OpenDelegationData* delegation);
 			status_t	OpenFile(OpenState* state, int mode,
 							OpenDelegationData* delegation);
 

src/add-ons/kernel/file_systems/nfs4/kernel_interface.cpp

@@ -392,7 +392,10 @@ nfs4_create(fs_volume* volume, fs_vnode* dir, const char* name, int openMode,
 	*_cookie = cookie;
 
 	Inode* inode = reinterpret_cast<Inode*>(dir->private_node);
-	status_t result = inode->Create(name, openMode, perms, cookie, _newVnodeID);
+
+	OpenDelegationData data;
+	status_t result = inode->Create(name, openMode, perms, cookie, &data,
+		_newVnodeID);
 	if (result != B_OK) {
 		delete cookie;
 		return result;
@@ -417,6 +420,17 @@ nfs4_create(fs_volume* volume, fs_vnode* dir, const char* name, int openMode,
 
 	child->SetOpenState(cookie->fOpenState);
 
+	if (data.fType != OPEN_DELEGATE_NONE) {
+		Delegation* delegation
+			= new(std::nothrow) Delegation(data, child,
+				cookie->fOpenState->fClientID);
+		if (delegation != NULL) {
+			delegation->fInfo = cookie->fOpenState->fInfo;
+			delegation->fFileSystem = child->GetFileSystem();
+			child->SetDelegation(delegation);
+		}
+	}
+
 	return result;
 }