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[NTOSKRNL]

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- Implement SeAppendPrivileges().

svn path=/trunk/; revision=47384
This commit is contained in:
Eric Kohl 2010-05-28 19:36:57 +00:00
parent f0910f33d3
commit f9cd9b9a5b
1 changed files with 64 additions and 5 deletions
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69
reactos/ntoskrnl/se/priv.c
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@ -281,15 +281,74 @@ SeReleaseLuidAndAttributesArray(PLUID_AND_ATTRIBUTES Privilege,
/* PUBLIC FUNCTIONS ***********************************************************/
/*
* @unimplemented
* @implemented
*/
NTSTATUS
NTAPI
SeAppendPrivileges(PACCESS_STATE AccessState,
PPRIVILEGE_SET Privileges)
SeAppendPrivileges(IN OUT PACCESS_STATE AccessState,
IN PPRIVILEGE_SET Privileges)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
PAUX_ACCESS_DATA AuxData;
ULONG OldPrivilegeSetSize;
ULONG NewPrivilegeSetSize;
PPRIVILEGE_SET PrivilegeSet;
PAGED_CODE();
/* Get the Auxiliary Data */
AuxData = AccessState->AuxData;
/* Calculate the size of the old privilege set */
OldPrivilegeSetSize = sizeof(PRIVILEGE_SET) +
(AuxData->PrivilegeSet->PrivilegeCount - 1) * sizeof(LUID_AND_ATTRIBUTES);
if (AuxData->PrivilegeSet->PrivilegeCount +
Privileges->PrivilegeCount > INITIAL_PRIVILEGE_COUNT)
{
/* Calculate the size of the new privilege set */
NewPrivilegeSetSize = OldPrivilegeSetSize +
Privileges->PrivilegeCount * sizeof(LUID_AND_ATTRIBUTES);
/* Allocate a new privilege set */
PrivilegeSet = ExAllocatePool(PagedPool, NewPrivilegeSetSize);
if (PrivilegeSet == NULL)
return STATUS_INSUFFICIENT_RESOURCES;
/* Copy original privileges from the acess state */
RtlCopyMemory(PrivilegeSet,
AuxData->PrivilegeSet,
OldPrivilegeSetSize);
/* Append privileges from the privilege set*/
RtlCopyMemory((PVOID)((ULONG_PTR)PrivilegeSet + OldPrivilegeSetSize),
(PVOID)((ULONG_PTR)Privileges + sizeof(PRIVILEGE_SET) - sizeof(LUID_AND_ATTRIBUTES)),
Privileges->PrivilegeCount * sizeof(LUID_AND_ATTRIBUTES));
/* Adjust the number of privileges in the new privilege set */
PrivilegeSet->PrivilegeCount += Privileges->PrivilegeCount;
/* Free the old privilege set if it was allocated */
if (AccessState->PrivilegesAllocated == TRUE)
ExFreePool(AuxData->PrivilegeSet);
/* Now we are using an allocated privilege set */
AccessState->PrivilegesAllocated = TRUE;
/* Assign the new privileges to the access state */
AuxData->PrivilegeSet = PrivilegeSet;
}
else
{
/* Append privileges */
RtlCopyMemory((PVOID)((ULONG_PTR)AuxData->PrivilegeSet + OldPrivilegeSetSize),
(PVOID)((ULONG_PTR)Privileges + sizeof(PRIVILEGE_SET) - sizeof(LUID_AND_ATTRIBUTES)),
Privileges->PrivilegeCount * sizeof(LUID_AND_ATTRIBUTES));
/* Adjust the number of privileges in the target privilege set */
AuxData->PrivilegeSet->PrivilegeCount += Privileges->PrivilegeCount;
}
return STATUS_SUCCESS;
}
/*