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symlink: FSCTL_SET_REPARSE_POINT

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driver handles FSCTL_SET_REPARSE_POINT by sending a symlink set upcall
daemon handles symlink set upcall by calling nfs41_create()

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2010-09-23 13:13:18 -04:00 • committed by unknown
parent 8c4c98b669
commit 62fa6176be
2 changed files with 58 additions and 0 deletions
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9
daemon/symlink.c
View file

@ -188,6 +188,15 @@ int handle_symlink(nfs41_upcall *upcall)
int status = NO_ERROR;
if (args->set) {
/* create the symlink */
status = nfs41_create(state->session, NF4LNK, 0777,
args->target_set, &state->parent, &state->file);
if (status) {
eprintf("nfs41_create() failed with %s\n",
nfs_error_string(status));
status = map_symlink_errors(status);
goto out;
}
} else {
uint32_t len;

49
sys/nfs41_driver.c
View file

@ -4270,6 +4270,50 @@ static void print_reparse_buffer(PREPARSE_DATA_BUFFER Reparse)
DbgP("PrintName: %wZ\n", &name);
}
static NTSTATUS nfs41_SetReparsePoint(
IN OUT PRX_CONTEXT RxContext)
{
UNICODE_STRING TargetName;
XXCTL_LOWIO_COMPONENT *FsCtl = &RxContext->LowIoContext.ParamsFor.FsCtl;
PREPARSE_DATA_BUFFER Reparse = (PREPARSE_DATA_BUFFER)FsCtl->pInputBuffer;
PNFS41_FOBX Fobx = NFS41GetFileObjectExtension(RxContext->pFobx);
PMRX_SRV_OPEN SrvOpen = RxContext->pRelevantSrvOpen;
PNFS41_V_NET_ROOT_EXTENSION VNetRoot = NFS41GetVNetRootExtension(SrvOpen->pVNetRoot);
nfs41_updowncall_entry *entry;
NTSTATUS status;
print_reparse_buffer(Reparse);
if (Reparse->ReparseTag != IO_REPARSE_TAG_SYMLINK) {
status = STATUS_IO_REPARSE_TAG_MISMATCH;
goto out;
}
TargetName.MaximumLength = TargetName.Length =
Reparse->SymbolicLinkReparseBuffer.PrintNameLength;
TargetName.Buffer = &Reparse->SymbolicLinkReparseBuffer.PathBuffer[
Reparse->SymbolicLinkReparseBuffer.PrintNameOffset/sizeof(WCHAR)];
status = nfs41_UpcallCreate(NFS41_SYMLINK, &entry);
if (status)
goto out;
entry->u.Symlink.session = VNetRoot->session;
entry->u.Symlink.open_state = Fobx->nfs41_open_state;
entry->u.Symlink.filename = SrvOpen->pAlreadyPrefixedName;
entry->u.Symlink.target = &TargetName;
entry->u.Symlink.set = TRUE;
if (nfs41_UpcallWaitForReply(entry) != STATUS_SUCCESS) {
status = STATUS_INTERNAL_ERROR;
goto out;
}
status = map_symlink_errors(entry->status);
RxFreePool(entry);
out:
return status;
}
static NTSTATUS nfs41_GetReparsePoint(
IN OUT PRX_CONTEXT RxContext)
{
@ -4339,6 +4383,11 @@ NTSTATUS nfs41_FsCtl(
DbgEn();
DbgP("FileName: %wZ\n", &RxContext->CurrentIrpSp->FileObject->FileName);
switch (RxContext->LowIoContext.ParamsFor.FsCtl.FsControlCode) {
case FSCTL_SET_REPARSE_POINT:
DbgP("FSCTL_SET_REPARSE_POINT\n");
status = nfs41_SetReparsePoint(RxContext);
break;
case FSCTL_GET_REPARSE_POINT:
DbgP("FSCTL_GET_REPARSE_POINT\n");
status = nfs41_GetReparsePoint(RxContext);