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[XDK] Introduce ExAllocate*Zero and ExAllocate*Uninitialized functions
These has been first added to DDK 10.0.19041.0 and made backwards-compatible with all Windows versions since Windows 2000. Our implementation does not use POOL_ZERO_ALLOCATION flag because it's not supported by ReactOS yet, and thus erases the memory unconditionally.
This commit is contained in:
Victor Perevertkin
parent
92520463d8
commit
380cd27cf3
2 changed files with 163 additions and 3 deletions
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@ -574,6 +574,164 @@ ExAllocatePoolWithTagPriority(
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_In_ ULONG Tag,
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_In_ __drv_strictTypeMatch(__drv_typeExpr) EX_POOL_PRIORITY Priority);
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FORCEINLINE
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__drv_allocatesMem(Mem)
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_When_((PoolType & PagedPool) != 0, _IRQL_requires_max_(APC_LEVEL))
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_When_((PoolType & PagedPool) == 0, _IRQL_requires_max_(DISPATCH_LEVEL))
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_When_((PoolType & NonPagedPoolMustSucceed) != 0,
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__drv_reportError("Must succeed pool allocations are forbidden. "
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"Allocation failures cause a system crash"))
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) == 0,
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_Post_maybenull_ _Must_inspect_result_)
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) != 0,
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_Post_notnull_)
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_Post_writable_byte_size_(NumberOfBytes)
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PVOID
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NTAPI
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ExAllocatePoolZero(
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_In_ __drv_strictTypeMatch(__drv_typeExpr) POOL_TYPE PoolType,
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_In_ SIZE_T NumberOfBytes,
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_In_ ULONG Tag)
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{
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PVOID Allocation;
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Allocation = ExAllocatePoolWithTag(PoolType, NumberOfBytes, Tag);
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if (Allocation != NULL) {
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RtlZeroMemory(Allocation, NumberOfBytes);
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}
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return Allocation;
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}
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FORCEINLINE
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__drv_allocatesMem(Mem)
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_When_((PoolType & PagedPool) != 0, _IRQL_requires_max_(APC_LEVEL))
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_When_((PoolType & PagedPool) == 0, _IRQL_requires_max_(DISPATCH_LEVEL))
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_When_((PoolType & NonPagedPoolMustSucceed) != 0,
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__drv_reportError("Must succeed pool allocations are forbidden. "
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"Allocation failures cause a system crash"))
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) == 0,
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_Post_maybenull_ _Must_inspect_result_)
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) != 0,
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_Post_notnull_)
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_Post_writable_byte_size_(NumberOfBytes)
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PVOID
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NTAPI
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ExAllocatePoolUninitialized(
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_In_ __drv_strictTypeMatch(__drv_typeExpr) POOL_TYPE PoolType,
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_In_ SIZE_T NumberOfBytes,
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_In_ ULONG Tag)
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{
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return ExAllocatePoolWithTag(PoolType, NumberOfBytes, Tag);
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}
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FORCEINLINE
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__drv_allocatesMem(Mem)
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_When_((PoolType & PagedPool) != 0, _IRQL_requires_max_(APC_LEVEL))
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_When_((PoolType & PagedPool) == 0, _IRQL_requires_max_(DISPATCH_LEVEL))
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_When_((PoolType & NonPagedPoolMustSucceed) != 0,
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__drv_reportError("Must succeed pool allocations are forbidden. "
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"Allocation failures cause a system crash"))
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) == 0,
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_Post_maybenull_ _Must_inspect_result_)
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) != 0,
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_Post_notnull_)
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_Post_writable_byte_size_(NumberOfBytes)
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PVOID
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NTAPI
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ExAllocatePoolQuotaZero (
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_In_ __drv_strictTypeMatch(__drv_typeExpr) POOL_TYPE PoolType,
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_In_ SIZE_T NumberOfBytes,
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_In_ ULONG Tag)
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{
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PVOID Allocation;
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Allocation = ExAllocatePoolWithQuotaTag(PoolType, NumberOfBytes, Tag);
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if (Allocation != NULL) {
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RtlZeroMemory(Allocation, NumberOfBytes);
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}
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return Allocation;
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}
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FORCEINLINE
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__drv_allocatesMem(Mem)
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_When_((PoolType & PagedPool) != 0, _IRQL_requires_max_(APC_LEVEL))
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_When_((PoolType & PagedPool) == 0, _IRQL_requires_max_(DISPATCH_LEVEL))
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_When_((PoolType & NonPagedPoolMustSucceed) != 0,
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__drv_reportError("Must succeed pool allocations are forbidden. "
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"Allocation failures cause a system crash"))
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) == 0,
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_Post_maybenull_ _Must_inspect_result_)
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) != 0,
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_Post_notnull_)
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_Post_writable_byte_size_(NumberOfBytes)
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PVOID
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NTAPI
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ExAllocatePoolQuotaUninitialized(
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_In_ __drv_strictTypeMatch(__drv_typeExpr) POOL_TYPE PoolType,
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_In_ SIZE_T NumberOfBytes,
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_In_ ULONG Tag)
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{
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return ExAllocatePoolWithQuotaTag(PoolType, NumberOfBytes, Tag);
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}
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FORCEINLINE
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__drv_allocatesMem(Mem)
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_When_((PoolType & PagedPool) != 0, _IRQL_requires_max_(APC_LEVEL))
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_When_((PoolType & PagedPool) == 0, _IRQL_requires_max_(DISPATCH_LEVEL))
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_When_((PoolType & NonPagedPoolMustSucceed) != 0,
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__drv_reportError("Must succeed pool allocations are forbidden. "
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"Allocation failures cause a system crash"))
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) == 0,
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_Post_maybenull_ _Must_inspect_result_)
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) != 0,
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_Post_notnull_)
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_Post_writable_byte_size_(NumberOfBytes)
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PVOID
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NTAPI
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ExAllocatePoolPriorityZero(
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_In_ __drv_strictTypeMatch(__drv_typeExpr) POOL_TYPE PoolType,
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_In_ SIZE_T NumberOfBytes,
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_In_ ULONG Tag,
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_In_ EX_POOL_PRIORITY Priority)
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{
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PVOID Allocation;
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Allocation = ExAllocatePoolWithTagPriority(PoolType, NumberOfBytes, Tag, Priority);
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if (Allocation != NULL) {
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RtlZeroMemory(Allocation, NumberOfBytes);
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}
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return Allocation;
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}
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FORCEINLINE
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__drv_allocatesMem(Mem)
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_When_((PoolType & PagedPool) != 0, _IRQL_requires_max_(APC_LEVEL))
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_When_((PoolType & PagedPool) == 0, _IRQL_requires_max_(DISPATCH_LEVEL))
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_When_((PoolType & NonPagedPoolMustSucceed) != 0,
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__drv_reportError("Must succeed pool allocations are forbidden. "
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"Allocation failures cause a system crash"))
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) == 0,
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_Post_maybenull_ _Must_inspect_result_)
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_When_((PoolType & (NonPagedPoolMustSucceed | POOL_RAISE_IF_ALLOCATION_FAILURE)) != 0,
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_Post_notnull_)
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_Post_writable_byte_size_(NumberOfBytes)
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PVOID
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NTAPI
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ExAllocatePoolPriorityUninitialized(
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_In_ __drv_strictTypeMatch(__drv_typeExpr) POOL_TYPE PoolType,
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_In_ SIZE_T NumberOfBytes,
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_In_ ULONG Tag,
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_In_ EX_POOL_PRIORITY Priority)
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{
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return ExAllocatePoolWithTagPriority(PoolType, NumberOfBytes, Tag, Priority);
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}
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_IRQL_requires_max_(DISPATCH_LEVEL)
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NTKERNELAPI
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VOID
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@ -14,9 +14,11 @@ $if (_WDMDDK_)
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#define CONNECT_FULLY_SPECIFIED_GROUP 0x4
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#define CONNECT_CURRENT_VERSION 0x4
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#define POOL_COLD_ALLOCATION 256
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#define POOL_QUOTA_FAIL_INSTEAD_OF_RAISE 8
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#define POOL_RAISE_IF_ALLOCATION_FAILURE 16
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#define POOL_QUOTA_FAIL_INSTEAD_OF_RAISE 0x8
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#define POOL_RAISE_IF_ALLOCATION_FAILURE 0x10
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#define POOL_COLD_ALLOCATION 0x100
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#define POOL_NX_ALLOCATION 0x200
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#define POOL_ZERO_ALLOCATION 0x400
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#define IO_TYPE_ADAPTER 1
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#define IO_TYPE_CONTROLLER 2
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