NTSTATUS
PvfsEnumerateDirectory(
PPVFS_CCB pCcb,
PIO_MATCH_FILE_SPEC pFileSpec,
LONG Count,
BOOLEAN bRescan
)
{
NTSTATUS ntError = STATUS_UNSUCCESSFUL;
DIR *pDir = NULL;
struct dirent *pDirEntry = NULL;
struct dirent dirEntry = { 0 };
PSTR pszPattern = NULL;
BOOLEAN bCaseSensitive = FALSE;
PSTR pszDiskFilename = NULL;
PVFS_STAT Stat = { 0 };
PSTR pszResolvedDirname = NULL;
PSTR pszResolvedFilename = NULL;
if (Count == 0)
{
ntError = STATUS_INVALID_PARAMETER;
BAIL_ON_NT_STATUS(ntError);
}
ntError = AllocateCStringFileSpec(&pszPattern, pFileSpec);
BAIL_ON_NT_STATUS(ntError);
if (bRescan)
{
if (pCcb->pDirContext->pDir)
{
PvfsSysCloseDir(pCcb->pDirContext->pDir);
}
PvfsFreeDirectoryContext(pCcb->pDirContext);
pCcb->pDirContext = NULL;
ntError = PvfsAllocateMemory(
(PVOID)&pCcb->pDirContext,
sizeof(PVFS_DIRECTORY_CONTEXT),
TRUE);
BAIL_ON_NT_STATUS(ntError);
pCcb->pDirContext->bScanned = FALSE;
}
if (!pCcb->pDirContext->bScanned)
{
if (!strchr(pszPattern, '?') && !strchr(pszPattern, '*'))
{
// A single file name match is the equivalent of a Windows Stat()
ntError = PvfsLookupFile(
&pszDiskFilename,
&Stat,
pCcb->pScb->pOwnerFcb->pszFilename,
pszPattern,
pFileSpec->Options & IO_NAME_OPTION_CASE_SENSITIVE);
BAIL_ON_NT_STATUS(ntError);
ntError = PvfsFileSplitPath(
&pszResolvedDirname,
&pszResolvedFilename,
pszDiskFilename);
BAIL_ON_NT_STATUS(ntError);
if (IsSetFlag(pCcb->Flags, PVFS_CCB_FLAG_ENABLE_ABE))
{
ntError = PvfsAccessCheckFileEnumerate(
pCcb,
pszResolvedFilename);
BAIL_ON_NT_STATUS(ntError);
}
ntError = PvfsDirContextAddEntry(
pCcb->pDirContext,
pszResolvedFilename);
BAIL_ON_NT_STATUS(ntError);
pCcb->pDirContext->bScanned = TRUE;
// Success
goto cleanup;
}
else
{
// Prepare to enumerate the entire directory
ntError = PvfsSysOpenDir(
pCcb->pScb->pOwnerFcb->pszFilename,
&pCcb->pDirContext->pDir);
BAIL_ON_NT_STATUS(ntError);
pCcb->pDirContext->bScanned = TRUE;
}
}
/* Loop to read entries */
pDir = pCcb->pDirContext->pDir;
/* -1 means to fill in whatever you can including current and
parent directory entries */
if (Count == -1)
{
/* Always add '.' and '..' first if thet match */
if (PvfsWildcardMatch(".", pszPattern, FALSE))
{
ntError = PvfsDirContextAddEntry(pCcb->pDirContext, ".");
BAIL_ON_NT_STATUS(ntError);
}
if (PvfsWildcardMatch("..", pszPattern, FALSE))
{
ntError = PvfsDirContextAddEntry(pCcb->pDirContext, "..");
BAIL_ON_NT_STATUS(ntError);
}
}
/* Loop through directory entries */
for(ntError = PvfsSysReadDir(pDir, &dirEntry, &pDirEntry);
pDirEntry && ((Count == -1) || (pCcb->pDirContext->dwNumEntries < Count));
ntError = PvfsSysReadDir(pDir, &dirEntry, &pDirEntry))
{
/* First check the error return */
BAIL_ON_NT_STATUS(ntError);
/* We've already added the "." and ".." directories */
if (RtlCStringIsEqual(pDirEntry->d_name, ".", FALSE) ||
RtlCStringIsEqual(pDirEntry->d_name, "..", FALSE))
{
continue;
}
if (PvfsWildcardMatch(pDirEntry->d_name, pszPattern, bCaseSensitive))
{
if (IsSetFlag(pCcb->Flags, PVFS_CCB_FLAG_ENABLE_ABE))
{
ntError = PvfsAccessCheckFileEnumerate(
pCcb,
pDirEntry->d_name);
if (ntError != STATUS_SUCCESS)
{
continue;
}
}
ntError = PvfsDirContextAddEntry(pCcb->pDirContext, pDirEntry->d_name);
BAIL_ON_NT_STATUS(ntError);
}
}
/* Bail if there were no matches */
if (pCcb->pDirContext->dwNumEntries == 0) {
ntError = STATUS_NO_SUCH_FILE;
BAIL_ON_NT_STATUS(ntError);
}
cleanup:
RtlCStringFree(&pszResolvedFilename);
RtlCStringFree(&pszResolvedDirname);
RtlCStringFree(&pszDiskFilename);
RtlCStringFree(&pszPattern);
return ntError;
error:
goto cleanup;
}
NTSTATUS
PvfsCreateFileSecurity(
PACCESS_TOKEN pUserToken,
PPVFS_CCB pCcb,
PSECURITY_DESCRIPTOR_RELATIVE pSecurityDescriptor,
BOOLEAN bIsDirectory
)
{
NTSTATUS ntError = STATUS_SUCCESS;
PSTR pszParentPath = NULL;
PSTR pszBaseFilename = NULL;
PSECURITY_DESCRIPTOR_RELATIVE pFinalSecDesc = NULL;
ULONG FinalSecDescLength = 0;
BYTE ParentSecDescBuffer[SECURITY_DESCRIPTOR_RELATIVE_MAX_SIZE];
ULONG ParentSecDescLength = SECURITY_DESCRIPTOR_RELATIVE_MAX_SIZE;
SECURITY_INFORMATION SecInfoAll = (OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
DACL_SECURITY_INFORMATION |
SACL_SECURITY_INFORMATION);
BYTE DefaultSecDescBuffer[SECURITY_DESCRIPTOR_RELATIVE_MAX_SIZE];
ULONG DefaultSecDescLength = SECURITY_DESCRIPTOR_RELATIVE_MAX_SIZE;
LwRtlZeroMemory(ParentSecDescBuffer, ParentSecDescLength);
LwRtlZeroMemory(DefaultSecDescBuffer, DefaultSecDescLength);
ntError = PvfsFileSplitPath(
&pszParentPath,
&pszBaseFilename,
pCcb->pszFilename);
BAIL_ON_NT_STATUS(ntError);
ntError = PvfsGetSecurityDescriptorFilename(
pszParentPath,
SecInfoAll,
(PSECURITY_DESCRIPTOR_RELATIVE)ParentSecDescBuffer,
&ParentSecDescLength);
BAIL_ON_NT_STATUS(ntError);
ntError = RtlCreatePrivateObjectSecurityEx(
(PSECURITY_DESCRIPTOR_RELATIVE)ParentSecDescBuffer,
pSecurityDescriptor,
&pFinalSecDesc,
&FinalSecDescLength,
NULL,
bIsDirectory,
SEF_DACL_AUTO_INHERIT|SEF_SACL_AUTO_INHERIT,
pUserToken,
&gPvfsFileGenericMapping);
BAIL_ON_NT_STATUS(ntError);
ntError = PvfsSetSecurityDescriptorFile(
pCcb,
SecInfoAll,
pFinalSecDesc,
FinalSecDescLength);
BAIL_ON_NT_STATUS(ntError);
cleanup:
LW_RTL_FREE(&pFinalSecDesc);
RtlCStringFree(&pszParentPath);
RtlCStringFree(&pszBaseFilename);
return ntError;
error:
goto cleanup;
}
