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Implement RtlCopySecurityDescriptor.

This commit is contained in:
James Hawkins 2005-06-20 10:34:30 +00:00 committed by Alexandre Julliard
parent 5807cb79f0
commit e485f984bd
3 changed files with 119 additions and 1 deletions
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2
dlls/ntdll/ntdll.spec
View File

@ -339,7 +339,7 @@
@ stdcall -ret64 RtlConvertUlongToLargeInteger(long)
@ stdcall RtlCopyLuid(ptr ptr)
@ stdcall RtlCopyLuidAndAttributesArray(long ptr ptr)
@ stub RtlCopySecurityDescriptor
@ stdcall RtlCopySecurityDescriptor(ptr ptr)
@ stdcall RtlCopySid(long ptr ptr)
@ stub RtlCopySidAndAttributesArray
@ stdcall RtlCopyString(ptr ptr)

117
dlls/ntdll/sec.c
View File

@ -52,6 +52,22 @@ static WINE_EXCEPTION_FILTER(page_fault)
return EXCEPTION_CONTINUE_SEARCH;
}
/* helper function to copy an ACL */
static BOOLEAN copy_acl(DWORD nDestinationAclLength, PACL pDestinationAcl, PACL pSourceAcl)
{
DWORD size;
if (!pSourceAcl || !RtlValidAcl(pSourceAcl))
return FALSE;
size = ((ACL *)pSourceAcl)->AclSize;
if (nDestinationAclLength < size)
return FALSE;
memmove(pDestinationAcl, pSourceAcl, size);
return TRUE;
}
/*
* SID FUNCTIONS
*/
@ -362,6 +378,107 @@ NTSTATUS WINAPI RtlCreateSecurityDescriptor(
((SECURITY_DESCRIPTOR*)lpsd)->Revision = SECURITY_DESCRIPTOR_REVISION;
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlCopySecurityDescriptor [NTDLL.@]
*
* Copies an absolute or sefl-relative SECURITY_DESCRIPTOR.
*
* PARAMS
* pSourceSD [O] SD to copy from.
* pDestinationSD [I] Destination SD.
*
* RETURNS:
* Success: STATUS_SUCCESS.
* Failure: STATUS_UNKNOWN_REVISION if rev is incorrect.
*/
NTSTATUS WINAPI RtlCopySecurityDescriptor(PSECURITY_DESCRIPTOR pSourceSD, PSECURITY_DESCRIPTOR pDestinationSD)
{
SECURITY_DESCRIPTOR *srcSD = (SECURITY_DESCRIPTOR *)pSourceSD;
SECURITY_DESCRIPTOR *destSD = (SECURITY_DESCRIPTOR *)pDestinationSD;
PSID Owner, Group;
PACL Dacl, Sacl;
BOOLEAN defaulted, present;
DWORD length;
BOOL isSelfRelative = srcSD->Control & SE_SELF_RELATIVE;
if (srcSD->Revision != SECURITY_DESCRIPTOR_REVISION)
return STATUS_UNKNOWN_REVISION;
/* copy initial data */
destSD->Revision = srcSD->Revision;
destSD->Sbz1 = srcSD->Sbz1;
destSD->Control = srcSD->Control;
/* copy Owner */
RtlGetOwnerSecurityDescriptor(pSourceSD, &Owner, &defaulted);
length = RtlLengthSid(Owner);
if (isSelfRelative)
{
destSD->Owner = srcSD->Owner;
RtlCopySid(length, (LPBYTE)destSD + (DWORD)destSD->Owner, Owner);
}
else
{
destSD->Owner = RtlAllocateHeap(GetProcessHeap(), 0, length);
RtlCopySid(length, destSD->Owner, Owner);
}
/* copy Group */
RtlGetGroupSecurityDescriptor(pSourceSD, &Group, &defaulted);
length = RtlLengthSid(Group);
if (isSelfRelative)
{
destSD->Group = srcSD->Group;
RtlCopySid(length, (LPBYTE)destSD + (DWORD)destSD->Group, Group);
}
else
{
destSD->Group = RtlAllocateHeap(GetProcessHeap(), 0, length);
RtlCopySid(length, destSD->Group, Group);
}
/* copy Dacl */
if (srcSD->Control & SE_DACL_PRESENT)
{
RtlGetDaclSecurityDescriptor(pSourceSD, &present, &Dacl, &defaulted);
length = Dacl->AclSize;
if (isSelfRelative)
{
destSD->Dacl = srcSD->Dacl;
copy_acl(length, (PACL)((LPBYTE)destSD + (DWORD)destSD->Dacl), Dacl);
}
else
{
destSD->Dacl = RtlAllocateHeap(GetProcessHeap(), 0, length);
copy_acl(length, destSD->Dacl, Dacl);
}
}
/* copy Sacl */
if (srcSD->Control & SE_SACL_PRESENT)
{
RtlGetSaclSecurityDescriptor(pSourceSD, &present, &Sacl, &defaulted);
length = Sacl->AclSize;
if (isSelfRelative)
{
destSD->Sacl = srcSD->Sacl;
copy_acl(length, (PACL)((LPBYTE)destSD + (DWORD)destSD->Sacl), Sacl);
}
else
{
destSD->Sacl = RtlAllocateHeap(GetProcessHeap(), 0, length);
copy_acl(length, destSD->Sacl, Sacl);
}
}
return STATUS_SUCCESS;
}
/**************************************************************************
* RtlValidSecurityDescriptor [NTDLL.@]
*

1
include/winternl.h
View File

@ -1787,6 +1787,7 @@ ULONGLONG WINAPI RtlConvertUlongToLargeInteger(ULONG);
void WINAPI RtlCopyLuid(PLUID,const LUID*);
void WINAPI RtlCopyLuidAndAttributesArray(ULONG,const LUID_AND_ATTRIBUTES*,PLUID_AND_ATTRIBUTES);
BOOLEAN WINAPI RtlCopySid(DWORD,PSID,PSID);
NTSTATUS WINAPI RtlCopySecurityDescriptor(PSECURITY_DESCRIPTOR,PSECURITY_DESCRIPTOR);
void WINAPI RtlCopyString(STRING*,const STRING*);
void WINAPI RtlCopyUnicodeString(UNICODE_STRING*,const UNICODE_STRING*);
NTSTATUS WINAPI RtlCreateAcl(PACL,DWORD,DWORD);