/*
 * Copyright (c) 2001 - 2005 NetGroup, Politecnico di Torino (Italy)
 * Copyright (c) 2005 CACE Technologies, Davis (California)
 * 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, CACE Technologies 
 * 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.
 *
 */

u_short valid_instructions[]=
	{
		BPF_RET|BPF_K,
		BPF_RET|BPF_A,
		BPF_LD|BPF_IMM,
		BPF_LDX|BPF_IMM,
		BPF_LD|BPF_MEM,
		BPF_LDX|BPF_MEM,

#ifdef __NPF_x86__
		BPF_LD|BPF_MEM_EX_IMM|BPF_B,
		BPF_LD|BPF_MEM_EX_IMM|BPF_H,
		BPF_LD|BPF_MEM_EX_IMM|BPF_W,
		BPF_LD|BPF_MEM_EX_IND|BPF_B,
		BPF_LD|BPF_MEM_EX_IND|BPF_H,
		BPF_LD|BPF_MEM_EX_IND|BPF_W,
#endif
		BPF_LD|BPF_W|BPF_ABS,
		BPF_LD|BPF_H|BPF_ABS,
		BPF_LD|BPF_B|BPF_ABS,
		BPF_LDX|BPF_W|BPF_ABS,
		BPF_LDX|BPF_H|BPF_ABS,
		BPF_LDX|BPF_B|BPF_ABS,
		BPF_LD|BPF_W|BPF_LEN,
		BPF_LDX|BPF_W|BPF_LEN,
		BPF_LD|BPF_W|BPF_IND,
		BPF_LD|BPF_H|BPF_IND,
		BPF_LD|BPF_B|BPF_IND,
		BPF_LDX|BPF_MSH|BPF_B,
		BPF_ST,
		BPF_STX,

#ifdef __NPF_x86__
		BPF_ST|BPF_MEM_EX_IMM|BPF_B,
		BPF_STX|BPF_MEM_EX_IMM|BPF_B,
		BPF_ST|BPF_MEM_EX_IMM|BPF_W,
		BPF_STX|BPF_MEM_EX_IMM|BPF_W,
		BPF_ST|BPF_MEM_EX_IMM|BPF_H,
		BPF_STX|BPF_MEM_EX_IMM|BPF_H,
		BPF_ST|BPF_MEM_EX_IND|BPF_B,
		BPF_ST|BPF_MEM_EX_IND|BPF_W,
		BPF_ST|BPF_MEM_EX_IND|BPF_H,
#endif

		BPF_JMP|BPF_JA,
		BPF_JMP|BPF_JGT|BPF_K,
		BPF_JMP|BPF_JGE|BPF_K,
		BPF_JMP|BPF_JEQ|BPF_K,
		BPF_JMP|BPF_JSET|BPF_K,
		BPF_JMP|BPF_JGT|BPF_X,
		BPF_JMP|BPF_JGE|BPF_X,
		BPF_JMP|BPF_JEQ|BPF_X,
		BPF_JMP|BPF_JSET|BPF_X,
		BPF_ALU|BPF_ADD|BPF_X,
		BPF_ALU|BPF_SUB|BPF_X,
		BPF_ALU|BPF_MUL|BPF_X,
		BPF_ALU|BPF_DIV|BPF_X,
		BPF_ALU|BPF_AND|BPF_X,
		BPF_ALU|BPF_OR|BPF_X,
		BPF_ALU|BPF_LSH|BPF_X,
		BPF_ALU|BPF_RSH|BPF_X,
		BPF_ALU|BPF_ADD|BPF_K,
		BPF_ALU|BPF_SUB|BPF_K,
		BPF_ALU|BPF_MUL|BPF_K,
		BPF_ALU|BPF_DIV|BPF_K,
		BPF_ALU|BPF_AND|BPF_K,
		BPF_ALU|BPF_OR|BPF_K,
		BPF_ALU|BPF_LSH|BPF_K,
		BPF_ALU|BPF_RSH|BPF_K,
		BPF_ALU|BPF_NEG,
		BPF_MISC|BPF_TAX,
		BPF_MISC|BPF_TXA,

#ifdef __NPF_x86__
		BPF_MISC|BPF_TME|BPF_LOOKUP,
		BPF_MISC|BPF_TME|BPF_EXECUTE,
		BPF_MISC|BPF_TME|BPF_SET_ACTIVE,
		BPF_MISC|BPF_TME|BPF_GET_REGISTER_VALUE,
		BPF_MISC|BPF_TME|BPF_SET_REGISTER_VALUE
#endif

	};

#define VALID_INSTRUCTIONS_LEN (sizeof(valid_instructions)/sizeof(u_short))