NTSTATUS
LsaSrvSidAppendRid(
PSID *ppOutSid,
PSID pInSid,
DWORD dwRid
)
{
NTSTATUS ntStatus = STATUS_SUCCESS;
DWORD dwSidLen = 0;
PSID pSid = NULL;
dwSidLen = RtlLengthRequiredSid(pInSid->SubAuthorityCount + 1);
ntStatus = LsaSrvAllocateMemory((void**)&pSid, dwSidLen);
BAIL_ON_NTSTATUS_ERROR(ntStatus);
ntStatus = RtlCopySid(dwSidLen, pSid, pInSid);
BAIL_ON_NTSTATUS_ERROR(ntStatus);
ntStatus = RtlAppendRidSid(dwSidLen, pSid, dwRid);
BAIL_ON_NTSTATUS_ERROR(ntStatus);
*ppOutSid = pSid;
cleanup:
return ntStatus;
error:
if (pSid) {
LsaSrvFreeMemory(pSid);
}
*ppOutSid = NULL;
goto cleanup;
}
NET_API_STATUS
NetUserGetLocalGroups(
PCWSTR pwszHostname,
PCWSTR pwszUsername,
DWORD dwLevel,
DWORD dwFlags,
PVOID *ppBuffer,
DWORD dwMaxBufferSize,
PDWORD pdwNumEntries,
PDWORD pdwTotalEntries
)
{
const DWORD dwBuiltinDomainAccess = DOMAIN_ACCESS_OPEN_ACCOUNT |
DOMAIN_ACCESS_ENUM_ACCOUNTS;
const DWORD dwUserAccess = USER_ACCESS_GET_GROUP_MEMBERSHIP;
NTSTATUS status = STATUS_SUCCESS;
WINERROR err = ERROR_SUCCESS;
PNET_CONN pConn = NULL;
SAMR_BINDING hSamrBinding = NULL;
DOMAIN_HANDLE hDomain = NULL;
DOMAIN_HANDLE hBtinDomain = NULL;
ACCOUNT_HANDLE hUser = NULL;
PSID pDomainSid = NULL;
PSID pUserSid = NULL;
DWORD dwUserRid = 0;
DWORD dwSidLen = 0;
DWORD i = 0;
PDWORD pdwUserRids = NULL;
PDWORD pdwBuiltinUserRids = NULL;
DWORD dwRidsCount = 0;
DWORD dwBuiltinRidsCount = 0;
DWORD dwInfoLevelSize = 0;
DWORD dwTotalNumEntries = 0;
PWSTR *ppwszAliasNames = NULL;
PWSTR *ppwszBuiltinAliasNames = NULL;
PDWORD pdwAliasTypes = NULL;
PDWORD pdwBuiltinAliasTypes = NULL;
PWSTR *ppwszLocalGroupNames = NULL;
PVOID pSourceBuffer = NULL;
PVOID pBuffer = NULL;
PVOID pBufferCursor = NULL;
DWORD dwSize = 0;
DWORD dwTotalSize = 0;
DWORD dwNumEntries = 0;
DWORD dwSpaceAvailable = 0;
PIO_CREDS pCreds = NULL;
NET_VALIDATION_LEVEL eValidation = NET_VALIDATION_NONE;
BAIL_ON_INVALID_PTR(pwszUsername, err);
BAIL_ON_INVALID_PTR(ppBuffer, err);
BAIL_ON_INVALID_PTR(pdwNumEntries, err);
BAIL_ON_INVALID_PTR(pdwTotalEntries, err);
switch (dwLevel)
{
case 0:
dwInfoLevelSize = sizeof(LOCALGROUP_USERS_INFO_0);
break;
default:
err = ERROR_INVALID_LEVEL;
BAIL_ON_WIN_ERROR(err);
}
status = LwIoGetActiveCreds(NULL, &pCreds);
BAIL_ON_NT_STATUS(status);
status = NetConnectSamr(&pConn,
pwszHostname,
0,
dwBuiltinDomainAccess,
pCreds);
BAIL_ON_NT_STATUS(status);
hSamrBinding = pConn->Rpc.Samr.hBinding;
hDomain = pConn->Rpc.Samr.hDomain;
hBtinDomain = pConn->Rpc.Samr.hBuiltin;
pDomainSid = pConn->Rpc.Samr.pDomainSid;
status = NetOpenUser(pConn,
pwszUsername,
dwUserAccess,
&hUser,
&dwUserRid);
BAIL_ON_NT_STATUS(status);
dwSidLen = RtlLengthRequiredSid(pDomainSid->SubAuthorityCount + 1);
err = LwAllocateMemory(dwSidLen,
OUT_PPVOID(&pUserSid));
BAIL_ON_WIN_ERROR(err);
status = RtlCopySid(dwSidLen,
pUserSid,
pDomainSid);
BAIL_ON_NT_STATUS(status);
status = RtlAppendRidSid(dwSidLen,
pUserSid,
dwUserRid);
BAIL_ON_NT_STATUS(status);
status = SamrGetAliasMembership(hSamrBinding,
hDomain,
&pUserSid,
1,
&pdwUserRids,
&dwRidsCount);
BAIL_ON_NT_STATUS(status);
status = SamrGetAliasMembership(hSamrBinding,
hBtinDomain,
&pUserSid,
1,
&pdwBuiltinUserRids,
&dwBuiltinRidsCount);
BAIL_ON_NT_STATUS(status);
dwTotalNumEntries = dwRidsCount + dwBuiltinRidsCount;
err = LwAllocateMemory(
sizeof(ppwszLocalGroupNames[0]) * dwTotalNumEntries,
OUT_PPVOID(&ppwszLocalGroupNames));
BAIL_ON_WIN_ERROR(err);
if (dwRidsCount > 0)
{
status = SamrLookupRids(hSamrBinding,
hDomain,
dwRidsCount,
pdwUserRids,
&ppwszAliasNames,
&pdwAliasTypes);
BAIL_ON_NT_STATUS(status);
for (i = 0; i < dwRidsCount; i++)
{
ppwszLocalGroupNames[i] = ppwszAliasNames[i];
}
}
if (dwBuiltinRidsCount > 0)
{
status = SamrLookupRids(hSamrBinding,
hBtinDomain,
dwBuiltinRidsCount,
pdwBuiltinUserRids,
&ppwszBuiltinAliasNames,
&pdwBuiltinAliasTypes);
BAIL_ON_NT_STATUS(status);
for (i = 0; i < dwBuiltinRidsCount; i++)
{
ppwszLocalGroupNames[i + dwRidsCount] = ppwszBuiltinAliasNames[i];
}
}
for (i = 0; i < dwTotalNumEntries; i++)
{
pSourceBuffer = ppwszLocalGroupNames[i];
dwSize = 0;
err = NetAllocateLocalGroupUsersInfo(NULL,
NULL,
dwLevel,
pSourceBuffer,
&dwSize,
eValidation);
BAIL_ON_WIN_ERROR(err);
dwTotalSize += dwSize;
dwNumEntries++;
if (dwTotalSize > dwMaxBufferSize)
{
dwTotalSize -= dwSize;
dwNumEntries--;
break;
}
}
if (dwTotalNumEntries > 0 && dwNumEntries == 0)
{
err = ERROR_INSUFFICIENT_BUFFER;
BAIL_ON_WIN_ERROR(err);
}
if (dwTotalSize)
{
status = NetAllocateMemory(OUT_PPVOID(&pBuffer),
dwTotalSize);
BAIL_ON_NT_STATUS(status);
}
dwSize = 0;
pBufferCursor = pBuffer;
dwSpaceAvailable = dwTotalSize;
for (i = 0; i < dwNumEntries; i++)
{
pSourceBuffer = ppwszLocalGroupNames[i];
pBufferCursor = pBuffer + (i * dwInfoLevelSize);
err = NetAllocateLocalGroupUsersInfo(pBufferCursor,
&dwSpaceAvailable,
dwLevel,
pSourceBuffer,
&dwSize,
eValidation);
BAIL_ON_WIN_ERROR(err);
}
if (dwNumEntries < dwTotalNumEntries)
{
err = ERROR_MORE_DATA;
}
status = SamrClose(hSamrBinding, hUser);
BAIL_ON_NT_STATUS(status);
*ppBuffer = pBuffer;
*pdwNumEntries = dwNumEntries;
*pdwTotalEntries = dwTotalNumEntries;
cleanup:
LW_SAFE_FREE_MEMORY(pUserSid);
LW_SAFE_FREE_MEMORY(ppwszLocalGroupNames);
if (pdwUserRids)
{
SamrFreeMemory(pdwUserRids);
}
if (pdwBuiltinUserRids)
{
SamrFreeMemory(pdwBuiltinUserRids);
}
if (ppwszAliasNames)
{
SamrFreeMemory(ppwszAliasNames);
}
if (pdwAliasTypes)
{
SamrFreeMemory(pdwAliasTypes);
}
if (ppwszBuiltinAliasNames)
{
SamrFreeMemory(ppwszBuiltinAliasNames);
}
if (pdwBuiltinAliasTypes)
{
SamrFreeMemory(pdwBuiltinAliasTypes);
}
if (pCreds)
{
LwIoDeleteCreds(pCreds);
}
return err;
error:
if (pBuffer)
{
NetFreeMemory(pBuffer);
}
*ppBuffer = NULL;
*pdwNumEntries = 0;
*pdwTotalEntries = 0;
goto cleanup;
}
NULL);
BAIL_ON_LSA_ERROR(dwError);
dwAccountSidSize = RtlLengthRequiredSid(
pDomainSid->SubAuthorityCount + 1);
dwError = LwAllocateMemory(dwAccountSidSize,
OUT_PPVOID(&pAccountSid));
BAIL_ON_LSA_ERROR(dwError);
ntStatus = RtlCopySid(dwAccountSidSize,
pAccountSid,
pDomainSid);
BAIL_ON_NT_STATUS(ntStatus);
ntStatus = RtlAppendRidSid(dwAccountSidSize,
pAccountSid,
dwRid);
BAIL_ON_NT_STATUS(ntStatus);
dwError = LwAllocateWellKnownSid(WinWorldSid,
NULL,
&pWorldSid,
NULL);
BAIL_ON_LSA_ERROR(dwError);
dwError = LocalDirCreateDacl(&pDacl,
AccessList);
BAIL_ON_LSA_ERROR(dwError);
*ppDacl = pDacl;
