static
VOID
SrvTree2Free(
PLWIO_SRV_TREE_2 pTree
)
{
LWIO_LOG_DEBUG("Freeing tree [object:0x%x][tid:%u]",
pTree,
pTree->ulTid);
// Cannot be in the parent since parent would have a reference.
LWIO_ASSERT(!SrvTree2IsInParent_inlock(pTree));
if (pTree->pMutex)
{
pthread_rwlock_destroy(&pTree->mutex);
pTree->pMutex = NULL;
}
if (pTree->pFileCollection)
{
LwRtlRBTreeFree(pTree->pFileCollection);
}
if (pTree->hFile)
{
IoCloseFile(pTree->hFile);
}
if (pTree->pShareInfo)
{
SrvShareReleaseInfo(pTree->pShareInfo);
}
if (pTree->resource.ulResourceId)
{
PSRV_RESOURCE pResource = NULL;
SrvElementsUnregisterResource(pTree->resource.ulResourceId,
&pResource);
pTree->resource.ulResourceId = 0;
}
// Release parent at the end
if (pTree->pSession)
{
SrvSession2Release(pTree->pSession);
}
SrvFreeMemory(pTree);
}
static
NTSTATUS
SrvShareBootstrapNamedPipeRoot(
IN OUT PLWIO_SRV_SHARE_ENTRY_LIST pShareList
)
{
NTSTATUS ntStatus = STATUS_SUCCESS;
wchar16_t wszPipeRootName[] = {'I','P','C','$',0};
PSRV_SHARE_INFO pShareInfo = NULL;
ntStatus = SrvShareFindByName(
pShareList,
&wszPipeRootName[0],
&pShareInfo);
if (ntStatus == STATUS_NOT_FOUND)
{
wchar16_t wszPipeSystemRoot[] = LWIO_SRV_PIPE_SYSTEM_ROOT_W;
wchar16_t wszServiceType[] = LWIO_SRV_SHARE_STRING_ID_IPC_W;
wchar16_t wszDesc[] = {'R','e','m','o','t','e',' ','I','P','C',0};
ntStatus = SrvShareAdd(
pShareList,
&wszPipeRootName[0],
&wszPipeSystemRoot[0],
&wszDesc[0],
NULL,
0,
&wszServiceType[0],
0);
BAIL_ON_NT_STATUS(ntStatus);
}
cleanup:
if (pShareInfo)
{
SrvShareReleaseInfo(pShareInfo);
}
return ntStatus;
error:
LWIO_LOG_ERROR("Failed to bootstrap default IPC$ shares. [error code: %d]",
ntStatus);
goto cleanup;
}
static
VOID
SrvTreeFree(
PLWIO_SRV_TREE pTree
)
{
LWIO_LOG_DEBUG("Freeing tree [object:0x%x][tid:%u]",
pTree,
pTree->tid);
if (pTree->pMutex)
{
pthread_rwlock_destroy(&pTree->mutex);
pTree->pMutex = NULL;
}
if (pTree->pFileCollection)
{
LwRtlRBTreeFree(pTree->pFileCollection);
}
if (pTree->pAsyncStateCollection)
{
LwRtlRBTreeFree(pTree->pAsyncStateCollection);
}
if (pTree->hFile)
{
IoCloseFile(pTree->hFile);
}
if (pTree->pShareInfo)
{
SrvShareReleaseInfo(pTree->pShareInfo);
}
SrvFreeMemory(pTree);
}
static
NTSTATUS
SrvShareDbWriteToShareInfo(
IN sqlite3_stmt* pSqlStatement,
OUT PSRV_SHARE_INFO** pppShareInfoList,
IN OUT PULONG pulNumSharesFound
)
{
NTSTATUS ntStatus = 0;
PSRV_SHARE_INFO* ppShareInfoList = NULL;
PSRV_SHARE_INFO pShareInfo = NULL;
PWSTR pwszStringVal = NULL;
ULONG ulIntVal = 0;
ULONG ulNumSharesAllocated = 0;
ULONG ulNumSharesAvailable = 0;
ULONG iShare = 0;
while ((ntStatus = sqlite3_step(pSqlStatement)) == SQLITE_ROW)
{
ULONG iCol = 0;
if (!ulNumSharesAvailable)
{
PSRV_SHARE_INFO* ppShareInfoListNew = NULL;
ULONG ulNumSharesNew = 5;
ULONG ulNumSharesAllocatedNew = ulNumSharesAllocated + ulNumSharesNew;
ntStatus = SrvAllocateMemory(
sizeof(PSRV_SHARE_INFO) * ulNumSharesAllocatedNew,
(PVOID*)&ppShareInfoListNew);
BAIL_ON_NT_STATUS(ntStatus);
if (ppShareInfoList)
{
memcpy((PBYTE)ppShareInfoListNew,
(PBYTE)ppShareInfoList,
sizeof(PSRV_SHARE_INFO) * ulNumSharesAllocated);
SrvFreeMemory(ppShareInfoList);
}
ppShareInfoList = ppShareInfoListNew;
ulNumSharesAllocated = ulNumSharesAllocatedNew;
ulNumSharesAvailable = ulNumSharesNew;
}
ntStatus = SrvAllocateMemory(
sizeof(SRV_SHARE_INFO),
(PVOID*)&pShareInfo);
BAIL_ON_NT_STATUS(ntStatus);
pShareInfo->refcount = 1;
pthread_rwlock_init(&pShareInfo->mutex, NULL);
pShareInfo->pMutex = &pShareInfo->mutex;
for (; iCol < 5; iCol++)
{
const unsigned char* pszStringVal = NULL;
ULONG ulNumBytes = sqlite3_column_bytes(pSqlStatement, iCol);
switch(iCol)
{
case 0: /* ShareName */
if (ulNumBytes)
{
pszStringVal = sqlite3_column_text(pSqlStatement, iCol);
ntStatus = SrvMbsToWc16s(
(PCSTR)pszStringVal,
&pShareInfo->pwszName);
BAIL_ON_NT_STATUS(ntStatus);
}
break;
case 1: /* PathName */
if (ulNumBytes)
{
pszStringVal = sqlite3_column_text(pSqlStatement, iCol);
ntStatus = SrvMbsToWc16s(
(PCSTR)pszStringVal,
&pShareInfo->pwszPath);
BAIL_ON_NT_STATUS(ntStatus);
}
break;
case 2: /* Comment */
if (ulNumBytes)
{
pszStringVal = sqlite3_column_text(pSqlStatement, iCol);
ntStatus = SrvMbsToWc16s(
(PCSTR)pszStringVal,
&pShareInfo->pwszComment);
}
else
{
/* Deal with empty comments */
ntStatus = SrvMbsToWc16s(
"",
&pShareInfo->pwszComment);
}
BAIL_ON_NT_STATUS(ntStatus);
break;
case 3: /* Security Descriptor */
if (ulNumBytes)
{
PCVOID pBlob = sqlite3_column_blob(pSqlStatement, iCol);
ntStatus = SrvAllocateMemory(
ulNumBytes,
(PVOID*)&pShareInfo->pSecDesc);
BAIL_ON_NT_STATUS(ntStatus);
memcpy(pShareInfo->pSecDesc, pBlob, ulNumBytes);
pShareInfo->ulSecDescLen = ulNumBytes;
}
break;
case 4: /* service */
if (ulNumBytes)
{
pszStringVal = sqlite3_column_text(pSqlStatement, iCol);
}
ntStatus = SrvMbsToWc16s(
(PCSTR)pszStringVal,
&pwszStringVal);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvShareMapServiceStringToId(
pwszStringVal,
&pShareInfo->service);
BAIL_ON_NT_STATUS(ntStatus);
break;
case 5: /* flags */
if (ulNumBytes)
{
ulIntVal = sqlite3_column_int(pSqlStatement, iCol);
}
pShareInfo->ulFlags = ulIntVal;
break;
}
}
*(ppShareInfoList + iShare++) = pShareInfo;
pShareInfo = NULL;
ulNumSharesAvailable--;
}
if (ntStatus == SQLITE_DONE)
{
ntStatus = STATUS_SUCCESS;
}
BAIL_ON_LWIO_SRV_SQLITE_ERROR_STMT(ntStatus, pSqlStatement);
*pppShareInfoList = ppShareInfoList;
*pulNumSharesFound = iShare;
cleanup:
SRV_SAFE_FREE_MEMORY(pwszStringVal);
if (pShareInfo)
{
SrvShareReleaseInfo(pShareInfo);
}
return ntStatus;
error:
*pppShareInfoList = NULL;
*pulNumSharesFound = 0;
if (ppShareInfoList)
{
SrvShareFreeInfoList(ppShareInfoList, iShare);
}
goto cleanup;
}
NTSTATUS
SrvShareRegFindByName(
HANDLE hRepository,
PWSTR pwszShareName,
PSRV_SHARE_INFO* ppShareInfo
)
{
NTSTATUS ntStatus = STATUS_SUCCESS;
HKEY hRootKey = NULL;
HKEY hKey = NULL;
HKEY hSecKey = NULL;
REG_DATA_TYPE dataType = REG_UNKNOWN;
ULONG ulValueLen = MAX_VALUE_LENGTH;
REG_DATA_TYPE dataSecType = REG_UNKNOWN;
ULONG ulSecValueLen = MAX_VALUE_LENGTH;
PSRV_SHARE_INFO pShareInfo = NULL;
BYTE pData[MAX_VALUE_LENGTH] = {0};
BYTE pSecData[MAX_VALUE_LENGTH] = {0};
wchar16_t wszHKTM[] = HKEY_THIS_MACHINE_W;
wchar16_t wszSharesKey[] = REG_KEY_PATH_SRV_SHARES_W;
wchar16_t wszShareSecKey[] = REG_KEY_PATH_SRV_SHARES_SECURITY_W;
ntStatus = NtRegOpenKeyExW(
hRepository,
NULL,
&wszHKTM[0],
0,
KEY_READ,
&hRootKey);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = NtRegOpenKeyExW(
hRepository,
hRootKey,
&wszSharesKey[0],
0,
KEY_READ,
&hKey);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = NtRegOpenKeyExW(
hRepository,
hRootKey,
&wszShareSecKey[0],
0,
KEY_READ,
&hSecKey);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = NtRegGetValueW(
hRepository,
hKey,
NULL,
pwszShareName,
RRF_RT_REG_MULTI_SZ,
&dataType,
pData,
&ulValueLen);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = NtRegGetValueW(
hRepository,
hSecKey,
NULL,
pwszShareName,
RRF_RT_REG_BINARY,
&dataSecType,
pSecData,
&ulSecValueLen);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = SrvShareRegWriteToShareInfo(
dataType,
pwszShareName,
pData,
ulValueLen,
dataSecType,
pSecData,
ulSecValueLen,
&pShareInfo);
BAIL_ON_NT_STATUS(ntStatus);
*ppShareInfo = pShareInfo;
cleanup:
if (hRootKey)
{
NtRegCloseKey(hRepository, hRootKey);
}
if (hKey)
{
NtRegCloseKey(hRepository, hKey);
}
if (hSecKey)
{
NtRegCloseKey(hRepository, hSecKey);
}
return ntStatus;
error:
if (pShareInfo)
{
SrvShareReleaseInfo(pShareInfo);
}
goto cleanup;
}
static
NTSTATUS
SrvShareRegWriteToShareInfo(
IN REG_DATA_TYPE regDataType,
IN PWSTR pwszShareName,
IN PBYTE pData,
IN ULONG ulDataLen,
IN REG_DATA_TYPE regSecDataType,
IN PBYTE pSecData,
IN ULONG ulSecDataLen,
OUT PSRV_SHARE_INFO* ppShareInfo
)
{
NTSTATUS ntStatus = STATUS_SUCCESS;
PSRV_SHARE_INFO pShareInfo = NULL;
PWSTR* ppwszValues = NULL;
PSTR pszFlags = NULL;
ntStatus = SrvAllocateMemory(sizeof(*pShareInfo), (PVOID*)&pShareInfo);
BAIL_ON_NT_STATUS(ntStatus);
pShareInfo->refcount = 1;
pthread_rwlock_init(&pShareInfo->mutex, NULL);
pShareInfo->pMutex = &pShareInfo->mutex;
ntStatus = SrvAllocateStringW(pwszShareName, &pShareInfo->pwszName);
BAIL_ON_NT_STATUS(ntStatus);
if (pData)
{
ULONG iValue = 0;
wchar16_t wszCommentPrefix[] = REG_KEY_COMMENT_PREFIX_W;
ULONG ulCommentPrefixLen =
(sizeof(wszCommentPrefix)/sizeof(wchar16_t)) - 1;
wchar16_t wszPathPrefix[] = REG_KEY_PATH_PREFIX_W;
ULONG ulPathPrefixLen =
(sizeof(wszPathPrefix)/sizeof(wchar16_t)) - 1;
wchar16_t wszServicePrefix[] = REG_KEY_SERVICE_PREFIX_W;
ULONG ulServicePrefixLen =
(sizeof(wszServicePrefix)/sizeof(wchar16_t)) - 1;
wchar16_t wszFlagsPrefix[] = REG_KEY_FLAGS_PREFIX_W;
ULONG ulFlagsPrefixLen =
(sizeof(wszFlagsPrefix)/sizeof(wchar16_t)) - 1;
ntStatus = NtRegByteArrayToMultiStrs(pData, ulDataLen, &ppwszValues);
BAIL_ON_NT_STATUS(ntStatus);
for (; ppwszValues[iValue]; iValue++)
{
PWSTR pwszValue = &ppwszValues[iValue][0];
if (!wc16sncmp(&wszPathPrefix[0], pwszValue, ulPathPrefixLen))
{
SRV_SAFE_FREE_MEMORY(pShareInfo->pwszPath);
ntStatus = SrvAllocateStringW(
&pwszValue[ulPathPrefixLen],
&pShareInfo->pwszPath);
BAIL_ON_NT_STATUS(ntStatus);
}
else if (!wc16sncmp(&wszCommentPrefix[0], pwszValue, ulCommentPrefixLen))
{
SRV_SAFE_FREE_MEMORY(pShareInfo->pwszComment);
ntStatus = SrvAllocateStringW(
&pwszValue[ulCommentPrefixLen],
&pShareInfo->pwszComment);
BAIL_ON_NT_STATUS(ntStatus);
}
else if (!wc16sncmp(&wszServicePrefix[0], pwszValue, ulServicePrefixLen))
{
ntStatus = SrvShareMapServiceStringToIdW(
&pwszValue[ulServicePrefixLen],
&pShareInfo->service);
BAIL_ON_NT_STATUS(ntStatus);
}
else if (!wc16sncmp(&wszFlagsPrefix[0], pwszValue, ulFlagsPrefixLen))
{
ntStatus = RtlCStringAllocateFromWC16String(
&pszFlags,
&pwszValue[ulFlagsPrefixLen]);
BAIL_ON_NT_STATUS(ntStatus);
pShareInfo->ulFlags = strtol(pszFlags, NULL, 16);
}
else
{
ntStatus = STATUS_INVALID_PARAMETER_3;
BAIL_ON_NT_STATUS(ntStatus);
}
}
}
if (!pShareInfo->pwszComment)
{
wchar16_t wszComment[] = {0};
ntStatus = SrvAllocateStringW(
&wszComment[0],
&pShareInfo->pwszComment);
BAIL_ON_NT_STATUS(ntStatus);
}
if (ulSecDataLen)
{
ntStatus = SrvShareSetSecurity(
pShareInfo,
(PSECURITY_DESCRIPTOR_RELATIVE)pSecData,
ulSecDataLen);
BAIL_ON_NT_STATUS(ntStatus);
}
else
{
ntStatus = SrvShareSetDefaultSecurity(pShareInfo);
BAIL_ON_NT_STATUS(ntStatus);
}
*ppShareInfo = pShareInfo;
cleanup:
if (ppwszValues)
{
RegFreeMultiStrsW(ppwszValues);
}
RTL_FREE(&pszFlags);
return ntStatus;
error:
if (pShareInfo)
{
SrvShareReleaseInfo(pShareInfo);
}
goto cleanup;
}
