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pcg |
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/* |
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ROHC Project 2003 at Lulea University of Technology, Sweden. |
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Authors: Andreas Vernersson <andver-8@student.luth.se> |
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Daniel Pettersson <danpet-7@student.luth.se> |
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Erik Soderstrom <soderstrom@yahoo.com> |
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Fredrik Lindstrom <frelin-9@student.luth.se> |
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Johan Stenmark <johste-8@student.luth.se> |
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Martin Juhlin <juhlin@users.sourceforge.net> |
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Mikael Larsson <larmik-9@student.luth.se> |
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Robert Maxe <robmax-1@student.luth.se> |
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Copyright (C) 2003 Andreas Vernersson, Daniel Pettersson, |
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Erik Soderström, Fredrik Lindström, Johan Stenmark, |
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Martin Juhlin, Mikael Larsson, Robert Maxe. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#ifndef _ROHC_H |
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#define _ROHC_H |
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// ROHC_DEBUG_LEVEL determines the level of output produced by ROHC module |
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// 0 == error messages only (useable in kernel module) |
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// 1 == a few informative messages also |
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// 2 == more informative messages (useable for user mode debugging) |
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// 3 == even more informative messages |
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#define ROHC_DEBUG_LEVEL 0 |
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#define ROHC_OK 1 |
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#define ROHC_OK_NO_DATA 0 |
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#define ROHC_ERROR -5 |
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#define ROHC_ERROR_NO_CONTEXT -1 |
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#define ROHC_ERROR_PACKAGE_FAILED -2 |
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#define ROHC_FEEDBACK_ONLY -3 |
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#define ROHC_ERROR_CRC -4 |
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#define ROHC_TRUE 1 |
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#define ROHC_FALSE 0 |
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typedef unsigned char boolean; |
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#define ROHC_LARGE_CID 1 |
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#define ROHC_SMALL_CID 2 |
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#define ROHC_U_MODE 1 |
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#define ROHC_O_MODE 2 |
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#define ROHC_R_MODE 3 |
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#define ROHC_NO_CONTEXT 1 |
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#define ROHC_STATIC_CONTEXT 2 |
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#define ROHC_FULL_CONTEXT 3 |
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#define GET_BIT_0_2(x) ((*x) & 0x07) |
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#define GET_BIT_0_4(x) ((*x) & 0x1f) |
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#define GET_BIT_0_3(x) ( ((*x) & 0x0f) ) |
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#define GET_BIT_0_5(x) ((*x) & 0x3f) |
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#define GET_BIT_0_6(x) ((*x) & 0x7f) |
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#define GET_BIT_0_7(x) ((*x) & 0xff) |
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#define GET_BIT_1_7(x) ( ((*x) & 0xfe) >> 1 ) |
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#define GET_BIT_3_4(x) ( ((*x) & 0x18) >> 3 ) |
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#define GET_BIT_3_5(x) ( ((*x) & 0x38) >> 3 ) |
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#define GET_BIT_3_6(x) ( ((*x) & 0x78) >> 3 ) |
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#define GET_BIT_3_7(x) ( ((*x) & 0xf8) >> 3 ) |
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#define GET_BIT_4_7(x) ( ((*x) & 0xf0) >> 4 ) |
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#define GET_BIT_5_7(x) ( ((*x) & 0xe0) >> 5 ) |
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#define GET_BIT_6_7(x) ( ((*x) & 0xc0) >> 6 ) |
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#define GET_DUAL_0_4_AND_7(x, y) ( ((*x) & 0x1f) << 1 | ( (*y) & 0x01 ) ) |
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#define GET_DUAL_0_2_AND_ALL(x, y) ( ((*x) & 0x03) << 1 | ( (*y) & 0xff ) ) |
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#define GET_BIT_0(x) ((*x) & 0x01) |
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#define GET_BIT_1(x) ((*x) & 0x02) |
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#define GET_BIT_2(x) ((*x) & 0x04) |
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#define GET_BIT_3(x) ((*x) & 0x08) |
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#define GET_BIT_4(x) ((*x) & 0x10) |
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#define GET_BIT_5(x) ((*x) & 0x20) |
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#define GET_BIT_6(x) ((*x) & 0x40) |
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#define GET_BIT_7(x) ((*x) & 0x80) |
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// Convert GET_BIT_x values to 0 or 1.. |
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// example: GET_REAL( GET_BIT_5(data_ptr) ); |
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#define GET_REAL(x) ( (x) ? 1 : 0 ) |
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#define C_WINDOW_WIDTH 16 |
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// Defines for the compressor profiles |
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#define GET_DF(x) ((ntohs(x)>>14)&1) |
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#define MOD_TOS 0x01 |
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#define MOD_TOT_LEN 0x02 |
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#define MOD_ID 0x04 |
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#define MOD_FRAG_OFF 0x08 |
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#define MOD_TTL 0x10 |
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#define MOD_PROTOCOL 0x20 |
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#define MOD_CHECK 0x40 |
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#define MOD_SADDR 0x80 |
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#define MOD_DADDR 0x0100 |
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#define c_IR 0 |
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#define c_IRDYN 1 |
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#define c_UO0 2 |
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#define c_UO1 3 |
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#define c_UO2 4 |
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#define c_NOEXT 0 |
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#define c_EXT0 1 |
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#define c_EXT1 2 |
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#define c_EXT2 3 |
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#define c_EXT3 4 |
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#define CHANGE_TO_FO_COUNT 700 |
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#define CHANGE_TO_IR_COUNT 1700 |
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#define MAX_IR_COUNT 3 |
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#define MAX_FO_COUNT 3 |
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#define IPID_MAX_DELTA 20 |
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// Defines for profiles in decomp. |
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#define PACKAGE_UO_0 0 |
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#define PACKAGE_UO_1 1 |
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#define PACKAGE_UOR_2 2 |
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#define PACKAGE_IR_DYN 3 |
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#define PACKAGE_IR 4 |
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#define PACKAGE_UNKNOWN 5 |
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#define PACKAGE_CE 6 |
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#define PACKAGE_CE_OFF 7 |
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// DO NOT CHANGE THIS NUMBERS! |
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#define PACKAGE_EXT_0 0 |
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#define PACKAGE_EXT_1 1 |
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#define PACKAGE_EXT_2 2 |
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#define PACKAGE_EXT_3 3 |
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#define PROTOCOL_IP_IN_IP 4 |
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#define PROTOCOL_IP6 41 |
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#define IP_DF 0x4000 /* Flag: "Don't Fragment" */ |
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#define CRC_ACTION 1 |
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#define WEIGHT_OLD 1 |
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#define WEIGHT_NEW 1 |
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#ifdef USER_SPACE |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <time.h> |
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#include <sys/time.h> |
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#define KERN_DEBUG stderr |
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#define GFP_KERNEL 0 |
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#define GFP_ATOMIC 1 |
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#define printk printf |
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#define kfree free |
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static inline void * kmalloc(int size, int type) { |
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if (type != GFP_ATOMIC) { |
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printf("wrong kmalloc type..\n"); |
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exit(0); |
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} |
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return malloc(size); |
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} |
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#include <stdarg.h> |
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#define rohc_debugf(level, format...) if (level<=ROHC_DEBUG_LEVEL) { printf(format); } else |
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/* |
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* This is a version of ip_compute_csum() optimized for IP headers, |
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* which always checksum on 4 octet boundaries. |
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* |
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* By Jorge Cwik <jorge@laser.satlink.net>, adapted for linux by |
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* Arnt Gulbrandsen. |
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*/ |
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static inline unsigned short ip_fast_csum(unsigned char * iph, |
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unsigned int ihl) { |
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unsigned int sum; |
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__asm__ __volatile__(" \n\ |
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movl (%1), %0 \n\ |
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subl $4, %2 \n\ |
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jbe 2f \n\ |
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addl 4(%1), %0 \n\ |
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adcl 8(%1), %0 \n\ |
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adcl 12(%1), %0 \n\ |
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1: adcl 16(%1), %0 \n\ |
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lea 4(%1), %1 \n\ |
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decl %2 \n\ |
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jne 1b \n\ |
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adcl $0, %0 \n\ |
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movl %0, %2 \n\ |
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shrl $16, %0 \n\ |
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addw %w2, %w0 \n\ |
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adcl $0, %0 \n\ |
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notl %0 \n\ |
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2: \n\ |
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" |
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/* Since the input registers which are loaded with iph and ipl |
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are modified, we must also specify them as outputs, or gcc |
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will assume they contain their original values. */ |
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: "=r" (sum), "=r" (iph), "=r" (ihl) |
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: "1" (iph), "2" (ihl)); |
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return(sum); |
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} |
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static inline int get_microseconds(void) { |
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struct timeval tv; |
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gettimeofday(&tv, NULL); |
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return tv.tv_sec * 1000000 + tv.tv_usec; |
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} |
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static inline int get_milliseconds(void) { |
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struct timeval tv; |
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gettimeofday(&tv, NULL); |
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return tv.tv_sec * 1000 + tv.tv_usec/1000; |
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} |
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#define simple_strtol strtol |
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// End of userspace defines.. |
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#else |
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// Start of kernel mode defines.. |
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#define rohc_debugf(level, format...) if (level<=ROHC_DEBUG_LEVEL) { printk(KERN_INFO format); } else |
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static inline int get_microseconds(void) { |
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struct timeval tv; |
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do_gettimeofday(&tv); |
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return tv.tv_sec * 1000000 + tv.tv_usec; |
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} |
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static inline int get_milliseconds(void) { |
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struct timeval tv; |
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do_gettimeofday(&tv); |
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return tv.tv_sec * 1000 + tv.tv_usec/1000; |
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} |
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#endif // End of kernelsapce defines |
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#endif |
