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527f2f9057
* Create a branch for some evul shell experiments. svn path=/branches/shell-experiments/; revision=61927
665 lines
22 KiB
C
665 lines
22 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/rtl/security.c
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* PURPOSE: Security related functions and Security Objects
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* PROGRAMMER: Eric Kohl
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*/
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/* INCLUDES *******************************************************************/
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#include <rtl.h>
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#define NDEBUG
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#include <debug.h>
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/* PRIVATE FUNCTIONS **********************************************************/
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NTSTATUS
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NTAPI
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RtlpSetSecurityObject(IN PVOID Object,
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IN SECURITY_INFORMATION SecurityInformation,
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IN PSECURITY_DESCRIPTOR ModificationDescriptor,
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OUT PSECURITY_DESCRIPTOR *ObjectsSecurityDescriptor,
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IN ULONG AutoInheritFlags,
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IN ULONG PoolType,
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IN PGENERIC_MAPPING GenericMapping,
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IN HANDLE Token OPTIONAL)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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NTSTATUS
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NTAPI
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RtlpNewSecurityObject(IN PSECURITY_DESCRIPTOR ParentDescriptor,
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IN PSECURITY_DESCRIPTOR CreatorDescriptor,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor,
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IN LPGUID *ObjectTypes,
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IN ULONG GuidCount,
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IN BOOLEAN IsDirectoryObject,
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IN ULONG AutoInheritFlags,
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IN HANDLE Token,
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IN PGENERIC_MAPPING GenericMapping)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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NTSTATUS
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NTAPI
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RtlpConvertToAutoInheritSecurityObject(IN PSECURITY_DESCRIPTOR ParentDescriptor,
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IN PSECURITY_DESCRIPTOR CreatorDescriptor,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor,
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IN LPGUID ObjectType,
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IN BOOLEAN IsDirectoryObject,
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IN PGENERIC_MAPPING GenericMapping)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/* PUBLIC FUNCTIONS ***********************************************************/
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlDefaultNpAcl(OUT PACL *pAcl)
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{
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NTSTATUS Status;
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HANDLE TokenHandle;
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PTOKEN_OWNER OwnerSid;
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ULONG ReturnLength = 0;
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ULONG AclSize;
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SID_IDENTIFIER_AUTHORITY NtAuthority = {SECURITY_NT_AUTHORITY};
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SID_IDENTIFIER_AUTHORITY WorldAuthority = {SECURITY_WORLD_SID_AUTHORITY};
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/*
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* Temporary buffer large enough to hold a maximum of two SIDs.
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* An alternative is to call RtlAllocateAndInitializeSid many times...
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*/
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UCHAR SidBuffer[16];
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PSID Sid = (PSID)&SidBuffer;
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ASSERT(RtlLengthRequiredSid(2) == 16);
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/* Initialize the user ACL pointer */
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*pAcl = NULL;
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/*
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* Try to retrieve the SID of the current owner. For that,
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* we first attempt to get the current thread level token.
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*/
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Status = NtOpenThreadToken(NtCurrentThread(),
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TOKEN_QUERY,
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TRUE,
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&TokenHandle);
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if (Status == STATUS_NO_TOKEN)
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{
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/*
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* No thread level token, so use the process level token.
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* This is the common case since the only time a thread
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* has a token is when it is impersonating.
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*/
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Status = NtOpenProcessToken(NtCurrentProcess(),
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TOKEN_QUERY,
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&TokenHandle);
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}
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/* Fail if we didn't succeed in retrieving a handle to the token */
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if (!NT_SUCCESS(Status)) return Status;
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/*
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* Retrieve the owner SID from the token.
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*/
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/* Query the needed size... */
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Status = NtQueryInformationToken(TokenHandle,
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TokenOwner,
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NULL, 0,
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&ReturnLength);
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/* ... so that we must fail with STATUS_BUFFER_TOO_SMALL error */
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if (Status != STATUS_BUFFER_TOO_SMALL) goto Cleanup1;
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/* Allocate space for the owner SID */
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OwnerSid = RtlAllocateHeap(RtlGetProcessHeap(), 0, ReturnLength);
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if (OwnerSid == NULL)
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{
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Status = STATUS_NO_MEMORY;
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goto Cleanup1;
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}
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/* Retrieve the owner SID; we must succeed */
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Status = NtQueryInformationToken(TokenHandle,
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TokenOwner,
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OwnerSid,
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ReturnLength,
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&ReturnLength);
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if (!NT_SUCCESS(Status)) goto Cleanup2;
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/*
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* Allocate one ACL with 5 ACEs.
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*
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* NOTE: sizeof(ACE) == sizeof(ACCESS_ALLOWED_ACE) - sizeof(((ACCESS_ALLOWED_ACE*)NULL)->SidStart)
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* (see kernel32/client/debugger.c line 54).
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*/
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AclSize = sizeof(ACL) + // Header
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5 * sizeof(ACE /*ACCESS_ALLOWED_ACE*/) + // 5 ACEs:
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RtlLengthRequiredSid(1) + // LocalSystem
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RtlLengthRequiredSid(2) + // Administrators
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RtlLengthRequiredSid(1) + // Anonymous
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RtlLengthRequiredSid(1) + // World
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RtlLengthSid(OwnerSid->Owner); // Owner
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*pAcl = RtlAllocateHeap(RtlGetProcessHeap(), 0, AclSize);
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if (*pAcl == NULL)
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{
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Status = STATUS_NO_MEMORY;
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goto Cleanup2;
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}
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/*
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* Build the ACL and add the five ACEs.
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*/
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Status = RtlCreateAcl(*pAcl, AclSize, ACL_REVISION2);
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ASSERT(NT_SUCCESS(Status));
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/* Local System SID - Generic All */
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Status = RtlInitializeSid(Sid, &NtAuthority, 1);
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ASSERT(NT_SUCCESS(Status));
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*RtlSubAuthoritySid(Sid, 0) = SECURITY_LOCAL_SYSTEM_RID;
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Status = RtlAddAccessAllowedAce(*pAcl, ACL_REVISION2, GENERIC_ALL, Sid);
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ASSERT(NT_SUCCESS(Status));
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/* Administrators SID - Generic All */
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Status = RtlInitializeSid(Sid, &NtAuthority, 2);
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ASSERT(NT_SUCCESS(Status));
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*RtlSubAuthoritySid(Sid, 0) = SECURITY_BUILTIN_DOMAIN_RID;
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*RtlSubAuthoritySid(Sid, 1) = DOMAIN_ALIAS_RID_ADMINS;
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Status = RtlAddAccessAllowedAce(*pAcl, ACL_REVISION2, GENERIC_ALL, Sid);
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ASSERT(NT_SUCCESS(Status));
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/* Owner SID - Generic All */
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RtlAddAccessAllowedAce(*pAcl, ACL_REVISION2, GENERIC_ALL, OwnerSid->Owner);
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ASSERT(NT_SUCCESS(Status));
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/* Anonymous SID - Generic Read */
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Status = RtlInitializeSid(Sid, &NtAuthority, 1);
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ASSERT(NT_SUCCESS(Status));
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*RtlSubAuthoritySid(Sid, 0) = SECURITY_ANONYMOUS_LOGON_RID;
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Status = RtlAddAccessAllowedAce(*pAcl, ACL_REVISION2, GENERIC_READ, Sid);
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ASSERT(NT_SUCCESS(Status));
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/* World SID - Generic Read */
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Status = RtlInitializeSid(Sid, &WorldAuthority, 1);
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ASSERT(NT_SUCCESS(Status));
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*RtlSubAuthoritySid(Sid, 0) = SECURITY_WORLD_RID;
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Status = RtlAddAccessAllowedAce(*pAcl, ACL_REVISION2, GENERIC_READ, Sid);
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ASSERT(NT_SUCCESS(Status));
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/* If some problem happened, cleanup everything */
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if (!NT_SUCCESS(Status))
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{
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RtlFreeHeap(RtlGetProcessHeap(), 0, *pAcl);
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*pAcl = NULL;
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}
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Cleanup2:
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/* Get rid of the owner SID */
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RtlFreeHeap(RtlGetProcessHeap(), 0, OwnerSid);
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Cleanup1:
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/* Close the token handle */
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NtClose(TokenHandle);
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/* Done */
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return Status;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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RtlCreateAndSetSD(IN PVOID AceData,
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IN ULONG AceCount,
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IN PSID OwnerSid OPTIONAL,
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IN PSID GroupSid OPTIONAL,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlDeleteSecurityObject(IN PSECURITY_DESCRIPTOR *ObjectDescriptor)
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{
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DPRINT1("RtlDeleteSecurityObject(%p)\n", ObjectDescriptor);
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/* Free the object from the heap */
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RtlFreeHeap(RtlGetProcessHeap(), 0, *ObjectDescriptor);
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return STATUS_SUCCESS;
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlNewSecurityObject(IN PSECURITY_DESCRIPTOR ParentDescriptor,
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IN PSECURITY_DESCRIPTOR CreatorDescriptor,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor,
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IN BOOLEAN IsDirectoryObject,
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IN HANDLE Token,
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IN PGENERIC_MAPPING GenericMapping)
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{
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DPRINT1("RtlNewSecurityObject(%p)\n", ParentDescriptor);
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/* Call the internal API */
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return RtlpNewSecurityObject(ParentDescriptor,
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CreatorDescriptor,
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NewDescriptor,
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NULL,
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0,
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IsDirectoryObject,
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0,
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Token,
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GenericMapping);
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlNewSecurityObjectEx(IN PSECURITY_DESCRIPTOR ParentDescriptor,
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IN PSECURITY_DESCRIPTOR CreatorDescriptor,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor,
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IN LPGUID ObjectType,
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IN BOOLEAN IsDirectoryObject,
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IN ULONG AutoInheritFlags,
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IN HANDLE Token,
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IN PGENERIC_MAPPING GenericMapping)
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{
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DPRINT1("RtlNewSecurityObjectEx(%p)\n", ParentDescriptor);
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/* Call the internal API */
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return RtlpNewSecurityObject(ParentDescriptor,
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CreatorDescriptor,
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NewDescriptor,
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ObjectType ? &ObjectType : NULL,
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ObjectType ? 1 : 0,
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IsDirectoryObject,
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AutoInheritFlags,
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Token,
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GenericMapping);
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlNewSecurityObjectWithMultipleInheritance(IN PSECURITY_DESCRIPTOR ParentDescriptor,
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IN PSECURITY_DESCRIPTOR CreatorDescriptor,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor,
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IN LPGUID *ObjectTypes,
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IN ULONG GuidCount,
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IN BOOLEAN IsDirectoryObject,
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IN ULONG AutoInheritFlags,
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IN HANDLE Token,
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IN PGENERIC_MAPPING GenericMapping)
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{
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DPRINT1("RtlNewSecurityObjectWithMultipleInheritance(%p)\n", ParentDescriptor);
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/* Call the internal API */
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return RtlpNewSecurityObject(ParentDescriptor,
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CreatorDescriptor,
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NewDescriptor,
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ObjectTypes,
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GuidCount,
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IsDirectoryObject,
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AutoInheritFlags,
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Token,
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GenericMapping);
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlNewInstanceSecurityObject(IN BOOLEAN ParentDescriptorChanged,
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IN BOOLEAN CreatorDescriptorChanged,
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IN PLUID OldClientTokenModifiedId,
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OUT PLUID NewClientTokenModifiedId,
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IN PSECURITY_DESCRIPTOR ParentDescriptor,
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IN PSECURITY_DESCRIPTOR CreatorDescriptor,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor,
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IN BOOLEAN IsDirectoryObject,
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IN HANDLE Token,
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IN PGENERIC_MAPPING GenericMapping)
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{
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TOKEN_STATISTICS TokenStats;
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ULONG Size;
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NTSTATUS Status;
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DPRINT1("RtlNewInstanceSecurityObject(%p)\n", ParentDescriptor);
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/* Query the token statistics */
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Status = NtQueryInformationToken(Token,
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TokenStatistics,
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&TokenStats,
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sizeof(TokenStats),
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&Size);
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if (!NT_SUCCESS(Status)) return Status;
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/* Return the LUID */
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*NewClientTokenModifiedId = TokenStats.ModifiedId;
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/* Check if the LUID changed */
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if (RtlEqualLuid(NewClientTokenModifiedId, OldClientTokenModifiedId))
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{
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/* Did nothing change? */
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if (!(ParentDescriptorChanged) && !(CreatorDescriptorChanged))
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{
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/* There's no new descriptor, we're done */
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*NewDescriptor = NULL;
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return STATUS_SUCCESS;
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}
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}
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/* Call the standard API */
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return RtlNewSecurityObject(ParentDescriptor,
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CreatorDescriptor,
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NewDescriptor,
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IsDirectoryObject,
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Token,
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GenericMapping);
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlCreateUserSecurityObject(IN PVOID AceData,
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IN ULONG AceCount,
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IN PSID OwnerSid,
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IN PSID GroupSid,
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IN BOOLEAN IsDirectoryObject,
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IN PGENERIC_MAPPING GenericMapping,
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OUT PSECURITY_DESCRIPTOR *NewDescriptor)
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{
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NTSTATUS Status;
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PSECURITY_DESCRIPTOR Sd;
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HANDLE TokenHandle;
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DPRINT1("RtlCreateUserSecurityObject(%p)\n", AceData);
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/* Create the security descriptor based on the ACE Data */
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Status = RtlCreateAndSetSD(AceData,
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AceCount,
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OwnerSid,
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GroupSid,
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&Sd);
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if (!NT_SUCCESS(Status)) return Status;
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/* Open the process token */
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Status = NtOpenProcessToken(NtCurrentProcess(), TOKEN_QUERY, &TokenHandle);
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if (!NT_SUCCESS(Status)) goto Quickie;
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/* Create the security object */
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Status = RtlNewSecurityObject(NULL,
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Sd,
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NewDescriptor,
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IsDirectoryObject,
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TokenHandle,
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GenericMapping);
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/* We're done, close the token handle */
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NtClose(TokenHandle);
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Quickie:
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/* Free the SD and return status */
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RtlFreeHeap(RtlGetProcessHeap(), 0, Sd);
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return Status;
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}
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/*
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* @implemented
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*/
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NTSTATUS
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NTAPI
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RtlNewSecurityGrantedAccess(IN ACCESS_MASK DesiredAccess,
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OUT PPRIVILEGE_SET Privileges,
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IN OUT PULONG Length,
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IN HANDLE Token,
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IN PGENERIC_MAPPING GenericMapping,
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OUT PACCESS_MASK RemainingDesiredAccess)
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{
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NTSTATUS Status;
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BOOLEAN Granted, CallerToken;
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TOKEN_STATISTICS TokenStats;
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ULONG Size;
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DPRINT1("RtlNewSecurityGrantedAccess(%lx)\n", DesiredAccess);
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/* Has the caller passed a token? */
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if (!Token)
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{
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/* Remember that we'll have to close the handle */
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CallerToken = FALSE;
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/* Nope, open it */
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Status = NtOpenThreadToken(NtCurrentThread(), TOKEN_QUERY, TRUE, &Token);
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if (!NT_SUCCESS(Status)) return Status;
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}
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else
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{
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/* Yep, use it */
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CallerToken = TRUE;
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}
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/* Get information on the token */
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Status = NtQueryInformationToken(Token,
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TokenStatistics,
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&TokenStats,
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sizeof(TokenStats),
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&Size);
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ASSERT(NT_SUCCESS(Status));
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/* Windows doesn't do anything with the token statistics! */
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/* Map the access and return it back decoded */
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RtlMapGenericMask(&DesiredAccess, GenericMapping);
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*RemainingDesiredAccess = DesiredAccess;
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/* Check if one of the rights requested was the SACL right */
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if (DesiredAccess & ACCESS_SYSTEM_SECURITY)
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{
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/* Pretend that it's allowed FIXME: Do privilege check */
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DPRINT1("Missing privilege check for SE_SECURITY_PRIVILEGE");
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Granted = TRUE;
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*RemainingDesiredAccess &= ~ACCESS_SYSTEM_SECURITY;
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}
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else
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{
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/* Nothing to grant */
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Granted = FALSE;
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}
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/* If the caller did not pass in a token, close the handle to ours */
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if (!CallerToken) NtClose(Token);
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/* We need space to return only 1 privilege -- already part of the struct */
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Size = sizeof(PRIVILEGE_SET);
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if (Size > *Length)
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{
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/* Tell the caller how much space we need and fail */
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*Length = Size;
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return STATUS_BUFFER_TOO_SMALL;
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}
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/* Check if the SACL right was granted... */
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RtlZeroMemory(&Privileges, Size);
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if (Granted)
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{
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/* Yes, return it in the structure */
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Privileges->PrivilegeCount = 1;
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Privileges->Privilege[0].Luid.LowPart = SE_SECURITY_PRIVILEGE;
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Privileges->Privilege[0].Luid.HighPart = 0;
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Privileges->Privilege[0].Attributes = SE_PRIVILEGE_USED_FOR_ACCESS;
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}
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/* All done */
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return STATUS_SUCCESS;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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RtlQuerySecurityObject(IN PSECURITY_DESCRIPTOR ObjectDescriptor,
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IN SECURITY_INFORMATION SecurityInformation,
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OUT PSECURITY_DESCRIPTOR ResultantDescriptor,
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IN ULONG DescriptorLength,
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OUT PULONG ReturnLength)
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{
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NTSTATUS Status;
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SECURITY_DESCRIPTOR desc;
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BOOLEAN defaulted, present;
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PACL pacl;
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PSID psid;
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Status = RtlCreateSecurityDescriptor(&desc, SECURITY_DESCRIPTOR_REVISION);
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if (!NT_SUCCESS(Status)) return Status;
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if (SecurityInformation & OWNER_SECURITY_INFORMATION)
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{
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Status = RtlGetOwnerSecurityDescriptor(ObjectDescriptor, &psid, &defaulted);
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if (!NT_SUCCESS(Status)) return Status;
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Status = RtlSetOwnerSecurityDescriptor(&desc, psid, defaulted);
|
|
if (!NT_SUCCESS(Status)) return Status;
|
|
}
|
|
|
|
if (SecurityInformation & GROUP_SECURITY_INFORMATION)
|
|
{
|
|
Status = RtlGetGroupSecurityDescriptor(ObjectDescriptor, &psid, &defaulted);
|
|
if (!NT_SUCCESS(Status)) return Status;
|
|
Status = RtlSetGroupSecurityDescriptor(&desc, psid, defaulted);
|
|
if (!NT_SUCCESS(Status)) return Status;
|
|
}
|
|
|
|
if (SecurityInformation & DACL_SECURITY_INFORMATION)
|
|
{
|
|
Status = RtlGetDaclSecurityDescriptor(ObjectDescriptor, &present, &pacl, &defaulted);
|
|
if (!NT_SUCCESS(Status)) return Status;
|
|
Status = RtlSetDaclSecurityDescriptor(&desc, present, pacl, defaulted);
|
|
if (!NT_SUCCESS(Status)) return Status;
|
|
}
|
|
|
|
if (SecurityInformation & SACL_SECURITY_INFORMATION)
|
|
{
|
|
Status = RtlGetSaclSecurityDescriptor(ObjectDescriptor, &present, &pacl, &defaulted);
|
|
if (!NT_SUCCESS(Status)) return Status;
|
|
Status = RtlSetSaclSecurityDescriptor(&desc, present, pacl, defaulted);
|
|
if (!NT_SUCCESS(Status)) return Status;
|
|
}
|
|
|
|
*ReturnLength = DescriptorLength;
|
|
return RtlAbsoluteToSelfRelativeSD(&desc, ResultantDescriptor, ReturnLength);
|
|
}
|
|
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
NTSTATUS
|
|
NTAPI
|
|
RtlSetSecurityObject(IN SECURITY_INFORMATION SecurityInformation,
|
|
IN PSECURITY_DESCRIPTOR ModificationDescriptor,
|
|
OUT PSECURITY_DESCRIPTOR *ObjectsSecurityDescriptor,
|
|
IN PGENERIC_MAPPING GenericMapping,
|
|
IN HANDLE Token)
|
|
{
|
|
/* Call the internal API */
|
|
return RtlpSetSecurityObject(NULL,
|
|
SecurityInformation,
|
|
ModificationDescriptor,
|
|
ObjectsSecurityDescriptor,
|
|
0,
|
|
PagedPool,
|
|
GenericMapping,
|
|
Token);
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
NTSTATUS
|
|
NTAPI
|
|
RtlSetSecurityObjectEx(IN SECURITY_INFORMATION SecurityInformation,
|
|
IN PSECURITY_DESCRIPTOR ModificationDescriptor,
|
|
OUT PSECURITY_DESCRIPTOR *ObjectsSecurityDescriptor,
|
|
IN ULONG AutoInheritFlags,
|
|
IN PGENERIC_MAPPING GenericMapping,
|
|
IN HANDLE Token)
|
|
{
|
|
/* Call the internal API */
|
|
return RtlpSetSecurityObject(NULL,
|
|
SecurityInformation,
|
|
ModificationDescriptor,
|
|
ObjectsSecurityDescriptor,
|
|
AutoInheritFlags,
|
|
PagedPool,
|
|
GenericMapping,
|
|
Token);
|
|
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
NTSTATUS
|
|
NTAPI
|
|
RtlConvertToAutoInheritSecurityObject(IN PSECURITY_DESCRIPTOR ParentDescriptor,
|
|
IN PSECURITY_DESCRIPTOR CreatorDescriptor,
|
|
OUT PSECURITY_DESCRIPTOR *NewDescriptor,
|
|
IN LPGUID ObjectType,
|
|
IN BOOLEAN IsDirectoryObject,
|
|
IN PGENERIC_MAPPING GenericMapping)
|
|
{
|
|
/* Call the internal API */
|
|
return RtlpConvertToAutoInheritSecurityObject(ParentDescriptor,
|
|
CreatorDescriptor,
|
|
NewDescriptor,
|
|
ObjectType,
|
|
IsDirectoryObject,
|
|
GenericMapping);
|
|
}
|
|
|
|
/*
|
|
* @unimplemented
|
|
*/
|
|
NTSTATUS
|
|
NTAPI
|
|
RtlRegisterSecureMemoryCacheCallback(IN PRTL_SECURE_MEMORY_CACHE_CALLBACK Callback)
|
|
{
|
|
UNIMPLEMENTED;
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/*
|
|
* @unimplemented
|
|
*/
|
|
BOOLEAN
|
|
NTAPI
|
|
RtlFlushSecureMemoryCache(IN PVOID MemoryCache,
|
|
IN OPTIONAL SIZE_T MemoryLength)
|
|
{
|
|
UNIMPLEMENTED;
|
|
return FALSE;
|
|
}
|