Use tabs for indentation and spaces for horizontal alignment
Screen is a valuable real-estate on small displays or when working in less than maximized or full-screen Visual Studio IDE. This commit replaces tabulators used for horizontal alignment with spaces, and stops imposing 8-space tabulators on everyone. Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman
parent
93638dd074
commit
cf01a7ded2
@ -1,3 +0,0 @@
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[*.{c,h,inf}]
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indent_style = tab
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indent_size = 8
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106
wintun.c
106
wintun.c
@ -5,8 +5,8 @@
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#define NDIS_MINIPORT_DRIVER
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#define NDIS620_MINIPORT
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#define NDIS_SUPPORT_NDIS620 1
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#define NDIS_WDM 1
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#define NDIS_SUPPORT_NDIS620 1
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#define NDIS_WDM 1
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#include <stdio.h>
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#include <string.h>
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@ -21,94 +21,94 @@
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#pragma warning(disable : 4204) // nonstandard extension used: non-constant aggregate initializer
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#pragma warning(disable : 4221) // nonstandard extension used: <member>: cannot be initialized using address of automatic variable <variable>
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#define TUN_DEVICE_NAME L"WINTUN%u"
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#define TUN_DEVICE_NAME L"WINTUN%u"
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#define TUN_VENDOR_NAME "Wintun Tunnel"
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#define TUN_VENDOR_ID 0xFFFFFF00
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#define TUN_LINK_SPEED 100000000000ULL // 100gbps
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#define TUN_VENDOR_NAME "Wintun Tunnel"
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#define TUN_VENDOR_ID 0xFFFFFF00
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#define TUN_LINK_SPEED 100000000000ULL // 100gbps
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#define TUN_EXCH_MAX_PACKETS 256 // Maximum number of exchange packets that can be exchanged in a single read/write
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#define TUN_EXCH_MAX_PACKET_SIZE 0xF000 // Maximum exchange packet size - empirically determined by net buffer list (pool) limitations
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#define TUN_EXCH_ALIGNMENT 16 // Memory alignment in exchange buffers
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#define TUN_EXCH_MAX_IP_PACKET_SIZE (TUN_EXCH_MAX_PACKET_SIZE - sizeof(TUN_PACKET)) // Maximum IP packet size (headers + payload)
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#define TUN_EXCH_MAX_BUFFER_SIZE (TUN_EXCH_MAX_PACKETS * TUN_EXCH_MAX_PACKET_SIZE) // Maximum size of read/write exchange buffer
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#define TUN_EXCH_MIN_BUFFER_SIZE_READ TUN_EXCH_MAX_PACKET_SIZE // Minimum size of read exchange buffer
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#define TUN_EXCH_MIN_BUFFER_SIZE_WRITE (sizeof(TUN_PACKET)) // Minimum size of write exchange buffer
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#define TUN_QUEUE_MAX_NBLS 1000
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#define TUN_EXCH_MAX_PACKETS 256 // Maximum number of exchange packets that can be exchanged in a single read/write
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#define TUN_EXCH_MAX_PACKET_SIZE 0xF000 // Maximum exchange packet size - empirically determined by net buffer list (pool) limitations
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#define TUN_EXCH_ALIGNMENT 16 // Memory alignment in exchange buffers
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#define TUN_EXCH_MAX_IP_PACKET_SIZE (TUN_EXCH_MAX_PACKET_SIZE - sizeof(TUN_PACKET)) // Maximum IP packet size (headers + payload)
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#define TUN_EXCH_MAX_BUFFER_SIZE (TUN_EXCH_MAX_PACKETS * TUN_EXCH_MAX_PACKET_SIZE) // Maximum size of read/write exchange buffer
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#define TUN_EXCH_MIN_BUFFER_SIZE_READ TUN_EXCH_MAX_PACKET_SIZE // Minimum size of read exchange buffer
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#define TUN_EXCH_MIN_BUFFER_SIZE_WRITE (sizeof(TUN_PACKET)) // Minimum size of write exchange buffer
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#define TUN_QUEUE_MAX_NBLS 1000
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typedef struct _TUN_PACKET {
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ULONG Size; // Size of packet data (TUN_EXCH_MAX_IP_PACKET_SIZE max)
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ULONG Size; // Size of packet data (TUN_EXCH_MAX_IP_PACKET_SIZE max)
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_Field_size_bytes_(Size)
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__declspec(align(TUN_EXCH_ALIGNMENT))
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UCHAR Data[]; // Packet data
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UCHAR Data[]; // Packet data
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} TUN_PACKET;
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typedef enum _TUN_STATE {
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TUN_STATE_HALTED = 0, // The Halted state is the initial state of all adapters. When an adapter is in the Halted state, NDIS can call the driver's MiniportInitializeEx function to initialize the adapter.
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TUN_STATE_SHUTDOWN, // In the Shutdown state, a system shutdown and restart must occur before the system can use the adapter again
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TUN_STATE_INITIALIZING, // In the Initializing state, a miniport driver completes any operations that are required to initialize an adapter.
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TUN_STATE_PAUSED, // In the Paused state, the adapter does not indicate received network data or accept send requests.
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TUN_STATE_RESTARTING, // In the Restarting state, a miniport driver completes any operations that are required to restart send and receive operations for an adapter.
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TUN_STATE_RUNNING, // In the Running state, a miniport driver performs send and receive processing for an adapter.
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TUN_STATE_PAUSING, // In the Pausing state, a miniport driver completes any operations that are required to stop send and receive operations for an adapter.
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TUN_STATE_HALTED = 0, // The Halted state is the initial state of all adapters. When an adapter is in the Halted state, NDIS can call the driver's MiniportInitializeEx function to initialize the adapter.
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TUN_STATE_SHUTDOWN, // In the Shutdown state, a system shutdown and restart must occur before the system can use the adapter again
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TUN_STATE_INITIALIZING, // In the Initializing state, a miniport driver completes any operations that are required to initialize an adapter.
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TUN_STATE_PAUSED, // In the Paused state, the adapter does not indicate received network data or accept send requests.
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TUN_STATE_RESTARTING, // In the Restarting state, a miniport driver completes any operations that are required to restart send and receive operations for an adapter.
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TUN_STATE_RUNNING, // In the Running state, a miniport driver performs send and receive processing for an adapter.
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TUN_STATE_PAUSING, // In the Pausing state, a miniport driver completes any operations that are required to stop send and receive operations for an adapter.
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} TUN_STATE;
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typedef struct _TUN_CTX {
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volatile TUN_STATE State;
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volatile TUN_STATE State;
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volatile NDIS_DEVICE_POWER_STATE PowerState;
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NDIS_HANDLE MiniportAdapterHandle;
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NDIS_STATISTICS_INFO Statistics;
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NDIS_HANDLE MiniportAdapterHandle;
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NDIS_STATISTICS_INFO Statistics;
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volatile LONG64 ActiveTransactionCount;
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volatile LONG64 ActiveTransactionCount;
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struct {
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NDIS_HANDLE Handle;
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DEVICE_OBJECT *Object;
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volatile LONG64 RefCount;
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NDIS_HANDLE Handle;
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DEVICE_OBJECT *Object;
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volatile LONG64 RefCount;
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struct {
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KSPIN_LOCK Lock;
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IO_CSQ Csq;
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LIST_ENTRY List;
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KSPIN_LOCK Lock;
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IO_CSQ Csq;
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LIST_ENTRY List;
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} ReadQueue;
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} Device;
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struct {
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KSPIN_LOCK Lock;
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NET_BUFFER_LIST *FirstNbl, *LastNbl;
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NET_BUFFER *NextNb;
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LONG NumNbl;
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KSPIN_LOCK Lock;
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NET_BUFFER_LIST *FirstNbl, *LastNbl;
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NET_BUFFER *NextNb;
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LONG NumNbl;
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} PacketQueue;
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NDIS_HANDLE NBLPool;
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NDIS_HANDLE NBLPool;
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} TUN_CTX;
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static NDIS_HANDLE NdisMiniportDriverHandle = NULL;
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#if REG_DWORD == REG_DWORD_BIG_ENDIAN
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#define TUN_MEMORY_TAG 'wtun'
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#define TunHtons(x) ((USHORT)(x))
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#define TunHtonl(x) ((ULONG)(x))
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#define TUN_MEMORY_TAG 'wtun'
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#define TunHtons(x) ((USHORT)(x))
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#define TunHtonl(x) ((ULONG)(x))
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#elif REG_DWORD == REG_DWORD_LITTLE_ENDIAN
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#define TUN_MEMORY_TAG 'nutw'
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#define TunHtons(x) RtlUshortByteSwap(x)
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#define TunHtonl(x) RtlUlongByteSwap(x)
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#define TUN_MEMORY_TAG 'nutw'
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#define TunHtons(x) RtlUshortByteSwap(x)
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#define TunHtonl(x) RtlUlongByteSwap(x)
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#else
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#error "Unable to determine endianess"
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#endif
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#define TUN_CSQ_INSERT_HEAD ((PVOID)TRUE)
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#define TUN_CSQ_INSERT_TAIL ((PVOID)FALSE)
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#define TUN_CSQ_INSERT_HEAD ((PVOID)TRUE)
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#define TUN_CSQ_INSERT_TAIL ((PVOID)FALSE)
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#define InterlockedGet(val) (InterlockedAdd((val), 0))
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#define InterlockedGet64(val) (InterlockedAdd64((val), 0))
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#define InterlockedGetPointer(val) (InterlockedCompareExchangePointer((val), NULL, NULL))
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#define InterlockedSubtract(val, n) (InterlockedAdd((val), -(LONG)(n)))
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#define InterlockedSubtract64(val, n) (InterlockedAdd64((val), -(LONG64)(n)))
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#define TunPacketAlign(size) (((UINT)(size) + (UINT)(TUN_EXCH_ALIGNMENT - 1)) & ~(UINT)(TUN_EXCH_ALIGNMENT - 1))
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#define TunInitUnicodeString(str, buf) { (str)->Length = 0; (str)->MaximumLength = sizeof(buf); (str)->Buffer = buf; }
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#define InterlockedGet(val) (InterlockedAdd((val), 0))
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#define InterlockedGet64(val) (InterlockedAdd64((val), 0))
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#define InterlockedGetPointer(val) (InterlockedCompareExchangePointer((val), NULL, NULL))
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#define InterlockedSubtract(val, n) (InterlockedAdd((val), -(LONG)(n)))
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#define InterlockedSubtract64(val, n) (InterlockedAdd64((val), -(LONG64)(n)))
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#define TunPacketAlign(size) (((UINT)(size) + (UINT)(TUN_EXCH_ALIGNMENT - 1)) & ~(UINT)(TUN_EXCH_ALIGNMENT - 1))
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#define TunInitUnicodeString(str, buf) { (str)->Length = 0; (str)->MaximumLength = sizeof(buf); (str)->Buffer = buf; }
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_IRQL_requires_max_(DISPATCH_LEVEL)
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_IRQL_requires_same_
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