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Diffstat (limited to 'src/Cedar/winpcap/tme.h')
| -rw-r--r-- | src/Cedar/winpcap/tme.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/Cedar/winpcap/tme.h b/src/Cedar/winpcap/tme.h new file mode 100644 index 00000000..eb8d4b12 --- /dev/null +++ b/src/Cedar/winpcap/tme.h @@ -0,0 +1,174 @@ +/*
+ * Copyright (c) 2001 - 2003
+ * NetGroup, Politecnico di Torino (Italy)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Politecnico di Torino nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __tme_include_
+#define __tme_include_
+
+#ifdef WIN_NT_DRIVER
+#include "ndis.h"
+#else
+#include <windows.h>
+#endif /*WIN_NT_DRIVER*/
+
+#include "memory_t.h"
+#include "time_calls.h"
+
+
+/* error codes */
+#define TME_ERROR 0
+#define TME_SUCCESS 1
+#define TME_TRUE 2
+#define TME_FALSE 3
+
+/* some constants */
+#define DEFAULT_MEM_EX_SIZE 65536
+#define MAX_TME_DATA_BLOCKS 4
+#define TME_NONE_ACTIVE 0xffffffff
+#define DELTA_READ 2 /* secs */
+
+#define TME_LUT_ENTRIES 0x00000000
+#define TME_MAX_FILL_STATE 0x00000001 /*potrebbe servire per un thread a passive level!?!?! */
+#define TME_REHASHING_VALUE 0x00000002
+#define TME_KEY_LEN 0x00000003
+#define TME_SHARED_MEMORY_BLOCKS 0x00000004
+#define TME_FILLED_ENTRIES 0x00000005
+#define TME_BLOCK_SIZE 0x00000006
+#define TME_EXTRA_SEGMENT_SIZE 0x00000007
+#define TME_LOOKUP_CODE 0x00000008
+#define TME_OUT_LUT_EXEC 0x00000009
+#define TME_FILLED_BLOCKS 0x0000000a
+#define TME_DEFAULT_EXEC 0x0000000b
+#define TME_LUT_BASE_ADDRESS 0x0000000c
+#define TME_SHARED_MEMORY_BASE_ADDRESS 0x0000000d
+#define TME_EXTRA_SEGMENT_BASE_ADDRESS 0x0000000e
+#define TME_LAST_FOUND 0x0000000f /* contains the offset of the last found entry */
+#define TME_LAST_FOUND_BLOCK 0x00000010
+/* TME default values */
+#define TME_LUT_ENTRIES_DEFAULT 32007
+#define TME_REHASHING_VALUE_DEFAULT 1
+#define TME_SHARED_MEMORY_BLOCKS_DEFAULT 16000
+#define TME_BLOCK_SIZE_DEFAULT 64
+#define TME_EXTRA_SEGMENT_SIZE_DEFAULT 0
+#define TME_LOOKUP_CODE_DEFAULT 0
+#define TME_OUT_LUT_EXEC_DEFAULT 0
+#define TME_DEFAULT_EXEC_DEFAULT 0
+#define TME_MAX_FILL_STATE_DEFAULT 15000
+
+#define IS_VALIDATED(src,index) (src&(1<<index))
+
+#define VALIDATE(src,index) src|=(1<<index);
+
+
+#define FORCE_NO_DELETION(timestamp) (struct timeval*)(timestamp)->tv_sec=0x7fffffff;
+
+/* TME callback prototypes */
+typedef uint32 (*lut_fcn)(uint8 *key, struct __TME_DATA *data,MEM_TYPE *mem_ex, struct time_conv *time_ref );
+typedef uint32 (*exec_fcn)(uint8 *block, uint32 pkt_size, struct __TME_DATA *data, MEM_TYPE *mem_ex, uint8 *mem_data);
+
+/* DO NOT MODIFY THIS STRUCTURE!!!! GV */
+typedef struct __RECORD
+
+{
+ uint32 block;
+ uint32 exec_fcn;
+}
+ RECORD, *PRECORD;
+
+/* TME data registers */
+struct __TME_DATA
+{
+ uint32 lut_entries;
+ uint32 max_fill_state;
+ uint32 rehashing_value;
+ uint32 key_len;
+ uint32 shared_memory_blocks;
+ uint32 filled_entries;
+ uint32 block_size;
+ uint32 extra_segment_size;
+ uint32 filled_blocks;
+ lut_fcn lookup_code;
+ uint32 default_exec;
+ uint32 out_lut_exec;
+ uint8 *lut_base_address;
+ uint8 *shared_memory_base_address;
+ uint8 *extra_segment_base_address;
+ struct timeval last_read;
+ uint32 enable_deletion;
+ uint8 *last_found;
+};
+
+typedef struct __TME_DATA TME_DATA,*PTME_DATA;
+
+
+
+/* TME core */
+typedef struct __TME_CORE
+{
+ uint32 working;
+ uint32 active;
+ uint32 validated_blocks;
+ TME_DATA block_data[MAX_TME_DATA_BLOCKS];
+ uint32 active_read;
+
+} TME_CORE, *PTME_CORE;
+
+static __inline int32 IS_DELETABLE(void *timestamp, TME_DATA *data)
+{
+ struct timeval *ts=(struct timeval*)timestamp;
+
+ if (data->enable_deletion==FALSE)
+ return FALSE;
+ if (data->filled_entries<data->max_fill_state)
+ return FALSE;
+ if ((ts->tv_sec+DELTA_READ)<data->last_read.tv_sec)
+ return TRUE;
+ return FALSE;
+}
+
+/* functions to manage TME */
+uint32 init_tme_block(TME_CORE *tme, uint32 block);
+uint32 validate_tme_block(MEM_TYPE *mem_ex, TME_CORE *tme, uint32 block, uint32 mem_ex_offset);
+uint32 lookup_frontend(MEM_TYPE *mem_ex, TME_CORE *tme,uint32 mem_ex_offset, struct time_conv *time_ref);
+uint32 execute_frontend(MEM_TYPE *mem_ex, TME_CORE *tme, uint32 pkt_size,uint32 offset);
+uint32 set_active_tme_block(TME_CORE *tme, uint32 block);
+uint32 init_extended_memory(uint32 size, MEM_TYPE *mem_ex);
+uint32 reset_tme(TME_CORE *tme);
+uint32 get_tme_block_register(TME_DATA *data,MEM_TYPE *mem_ex,uint32 rgstr,uint32 *rval);
+uint32 set_tme_block_register(TME_DATA *data,MEM_TYPE *mem_ex,uint32 rgstr,uint32 value, int32 init);
+uint32 set_active_read_tme_block(TME_CORE *tme, uint32 block);
+uint32 set_autodeletion(TME_DATA *data, uint32 value);
+
+/* function mappers */
+lut_fcn lut_fcn_mapper(uint32 index);
+exec_fcn exec_fcn_mapper(uint32 index);
+
+#endif
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