| 1 |
/* |
| 2 |
ROHC Project 2003 at Lulea University of Technology, Sweden. |
| 3 |
Authors: Andreas Vernersson <andver-8@student.luth.se> |
| 4 |
Daniel Pettersson <danpet-7@student.luth.se> |
| 5 |
Erik Soderstrom <soderstrom@yahoo.com> |
| 6 |
Fredrik Lindstrom <frelin-9@student.luth.se> |
| 7 |
Johan Stenmark <johste-8@student.luth.se> |
| 8 |
Martin Juhlin <juhlin@users.sourceforge.net> |
| 9 |
Mikael Larsson <larmik-9@student.luth.se> |
| 10 |
Robert Maxe <robmax-1@student.luth.se> |
| 11 |
|
| 12 |
Copyright (C) 2003 Andreas Vernersson, Daniel Pettersson, |
| 13 |
Erik Soderström, Fredrik Lindström, Johan Stenmark, |
| 14 |
Martin Juhlin, Mikael Larsson, Robert Maxe. |
| 15 |
|
| 16 |
This program is free software; you can redistribute it and/or modify |
| 17 |
it under the terms of the GNU General Public License as published by |
| 18 |
the Free Software Foundation; either version 2 of the License, or |
| 19 |
(at your option) any later version. |
| 20 |
|
| 21 |
This program is distributed in the hope that it will be useful, |
| 22 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 24 |
GNU General Public License for more details. |
| 25 |
|
| 26 |
You should have received a copy of the GNU General Public License |
| 27 |
along with this program; if not, write to the Free Software |
| 28 |
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 29 |
*/ |
| 30 |
#ifndef _ROHC_H |
| 31 |
#define _ROHC_H |
| 32 |
|
| 33 |
#include <netinet/ip.h> |
| 34 |
#include <netinet/udp.h> |
| 35 |
|
| 36 |
#include <inttypes.h> |
| 37 |
|
| 38 |
uint16_t typedef u16; |
| 39 |
uint32_t typedef u32; |
| 40 |
|
| 41 |
// ROHC_DEBUG_LEVEL determines the level of output produced by ROHC module |
| 42 |
// 0 == error messages only (useable in kernel module) |
| 43 |
// 1 == a few informative messages also |
| 44 |
// 2 == more informative messages (useable for user mode debugging) |
| 45 |
// 3 == even more informative messages |
| 46 |
#define ROHC_DEBUG_LEVEL 0 |
| 47 |
|
| 48 |
#define ROHC_OK 1 |
| 49 |
#define ROHC_OK_NO_DATA 0 |
| 50 |
#define ROHC_ERROR -5 |
| 51 |
#define ROHC_ERROR_NO_CONTEXT -1 |
| 52 |
#define ROHC_ERROR_PACKAGE_FAILED -2 |
| 53 |
#define ROHC_FEEDBACK_ONLY -3 |
| 54 |
#define ROHC_ERROR_CRC -4 |
| 55 |
|
| 56 |
#define ROHC_TRUE 1 |
| 57 |
#define ROHC_FALSE 0 |
| 58 |
|
| 59 |
typedef unsigned char boolean; |
| 60 |
|
| 61 |
#define ROHC_LARGE_CID 1 |
| 62 |
#define ROHC_SMALL_CID 2 |
| 63 |
|
| 64 |
#define ROHC_U_MODE 1 |
| 65 |
#define ROHC_O_MODE 2 |
| 66 |
#define ROHC_R_MODE 3 |
| 67 |
|
| 68 |
#define ROHC_NO_CONTEXT 1 |
| 69 |
#define ROHC_STATIC_CONTEXT 2 |
| 70 |
#define ROHC_FULL_CONTEXT 3 |
| 71 |
|
| 72 |
#define GET_BIT_0_2(x) ((*x) & 0x07) |
| 73 |
#define GET_BIT_0_4(x) ((*x) & 0x1f) |
| 74 |
#define GET_BIT_0_3(x) ( ((*x) & 0x0f) ) |
| 75 |
#define GET_BIT_0_5(x) ((*x) & 0x3f) |
| 76 |
#define GET_BIT_0_6(x) ((*x) & 0x7f) |
| 77 |
#define GET_BIT_0_7(x) ((*x) & 0xff) |
| 78 |
|
| 79 |
#define GET_BIT_1_7(x) ( ((*x) & 0xfe) >> 1 ) |
| 80 |
#define GET_BIT_3_4(x) ( ((*x) & 0x18) >> 3 ) |
| 81 |
#define GET_BIT_3_5(x) ( ((*x) & 0x38) >> 3 ) |
| 82 |
#define GET_BIT_3_6(x) ( ((*x) & 0x78) >> 3 ) |
| 83 |
#define GET_BIT_3_7(x) ( ((*x) & 0xf8) >> 3 ) |
| 84 |
#define GET_BIT_4_7(x) ( ((*x) & 0xf0) >> 4 ) |
| 85 |
#define GET_BIT_5_7(x) ( ((*x) & 0xe0) >> 5 ) |
| 86 |
#define GET_BIT_6_7(x) ( ((*x) & 0xc0) >> 6 ) |
| 87 |
|
| 88 |
#define GET_DUAL_0_4_AND_7(x, y) ( ((*x) & 0x1f) << 1 | ( (*y) & 0x01 ) ) |
| 89 |
#define GET_DUAL_0_2_AND_ALL(x, y) ( ((*x) & 0x03) << 1 | ( (*y) & 0xff ) ) |
| 90 |
|
| 91 |
#define GET_BIT_0(x) ((*x) & 0x01) |
| 92 |
#define GET_BIT_1(x) ((*x) & 0x02) |
| 93 |
#define GET_BIT_2(x) ((*x) & 0x04) |
| 94 |
#define GET_BIT_3(x) ((*x) & 0x08) |
| 95 |
#define GET_BIT_4(x) ((*x) & 0x10) |
| 96 |
#define GET_BIT_5(x) ((*x) & 0x20) |
| 97 |
#define GET_BIT_6(x) ((*x) & 0x40) |
| 98 |
#define GET_BIT_7(x) ((*x) & 0x80) |
| 99 |
|
| 100 |
// Convert GET_BIT_x values to 0 or 1.. |
| 101 |
// example: GET_REAL( GET_BIT_5(data_ptr) ); |
| 102 |
#define GET_REAL(x) ( (x) ? 1 : 0 ) |
| 103 |
|
| 104 |
#define C_WINDOW_WIDTH 16 |
| 105 |
|
| 106 |
|
| 107 |
// Defines for the compressor profiles |
| 108 |
|
| 109 |
#define GET_DF(x) ((ntohs(x)>>14)&1) |
| 110 |
|
| 111 |
#define MOD_TOS 0x01 |
| 112 |
#define MOD_TOT_LEN 0x02 |
| 113 |
#define MOD_ID 0x04 |
| 114 |
#define MOD_FRAG_OFF 0x08 |
| 115 |
#define MOD_TTL 0x10 |
| 116 |
#define MOD_PROTOCOL 0x20 |
| 117 |
#define MOD_CHECK 0x40 |
| 118 |
#define MOD_SADDR 0x80 |
| 119 |
#define MOD_DADDR 0x0100 |
| 120 |
|
| 121 |
#define c_IR 0 |
| 122 |
#define c_IRDYN 1 |
| 123 |
#define c_UO0 2 |
| 124 |
#define c_UO1 3 |
| 125 |
#define c_UO2 4 |
| 126 |
|
| 127 |
#define c_NOEXT 0 |
| 128 |
#define c_EXT0 1 |
| 129 |
#define c_EXT1 2 |
| 130 |
#define c_EXT2 3 |
| 131 |
#define c_EXT3 4 |
| 132 |
|
| 133 |
#define CHANGE_TO_FO_COUNT 700 |
| 134 |
#define CHANGE_TO_IR_COUNT 1700 |
| 135 |
|
| 136 |
#define MAX_IR_COUNT 3 |
| 137 |
#define MAX_FO_COUNT 3 |
| 138 |
|
| 139 |
#define IPID_MAX_DELTA 20 |
| 140 |
|
| 141 |
// Defines for profiles in decomp. |
| 142 |
|
| 143 |
#define PACKAGE_UO_0 0 |
| 144 |
#define PACKAGE_UO_1 1 |
| 145 |
#define PACKAGE_UOR_2 2 |
| 146 |
#define PACKAGE_IR_DYN 3 |
| 147 |
#define PACKAGE_IR 4 |
| 148 |
#define PACKAGE_UNKNOWN 5 |
| 149 |
#define PACKAGE_CE 6 |
| 150 |
#define PACKAGE_CE_OFF 7 |
| 151 |
|
| 152 |
// DO NOT CHANGE THESE NUMBERS! |
| 153 |
#define PACKAGE_EXT_0 0 |
| 154 |
#define PACKAGE_EXT_1 1 |
| 155 |
#define PACKAGE_EXT_2 2 |
| 156 |
#define PACKAGE_EXT_3 3 |
| 157 |
|
| 158 |
#define PROTOCOL_IP_IN_IP 4 |
| 159 |
#define PROTOCOL_IP6 41 |
| 160 |
|
| 161 |
#define IP_DF 0x4000 /* Flag: "Don't Fragment" */ |
| 162 |
|
| 163 |
#define CRC_ACTION 1 |
| 164 |
|
| 165 |
#define WEIGHT_OLD 1 |
| 166 |
#define WEIGHT_NEW 1 |
| 167 |
|
| 168 |
#include <stdio.h> |
| 169 |
#include <stdlib.h> |
| 170 |
#include <time.h> |
| 171 |
#include <sys/time.h> |
| 172 |
|
| 173 |
#define KERN_DEBUG stderr |
| 174 |
#define GFP_KERNEL 0 |
| 175 |
#define GFP_ATOMIC 1 |
| 176 |
#define printk printf |
| 177 |
#define kfree free |
| 178 |
|
| 179 |
static inline void * kmalloc(int size, int type) { |
| 180 |
if (type != GFP_ATOMIC) { |
| 181 |
printf("wrong kmalloc type..\n"); |
| 182 |
exit(0); |
| 183 |
} |
| 184 |
return malloc(size); |
| 185 |
} |
| 186 |
|
| 187 |
#include <stdarg.h> |
| 188 |
#define rohc_debugf(level, format...) if (level<=ROHC_DEBUG_LEVEL) { printf(format); } else |
| 189 |
|
| 190 |
#if defined(__i386__) && defined(__GNUC__) |
| 191 |
/* |
| 192 |
* This is a version of ip_compute_csum() optimized for IP headers, |
| 193 |
* which always checksum on 4 octet boundaries. |
| 194 |
* |
| 195 |
* By Jorge Cwik <jorge@laser.satlink.net>, adapted for linux by |
| 196 |
* Arnt Gulbrandsen. |
| 197 |
*/ |
| 198 |
static inline unsigned short ip_fast_csum(unsigned char * iph, |
| 199 |
unsigned int ihl) { |
| 200 |
unsigned int sum; |
| 201 |
|
| 202 |
__asm__ __volatile__(" \n\ |
| 203 |
movl (%1), %0 \n\ |
| 204 |
subl $4, %2 \n\ |
| 205 |
jbe 2f \n\ |
| 206 |
addl 4(%1), %0 \n\ |
| 207 |
adcl 8(%1), %0 \n\ |
| 208 |
adcl 12(%1), %0 \n\ |
| 209 |
1: adcl 16(%1), %0 \n\ |
| 210 |
lea 4(%1), %1 \n\ |
| 211 |
decl %2 \n\ |
| 212 |
jne 1b \n\ |
| 213 |
adcl $0, %0 \n\ |
| 214 |
movl %0, %2 \n\ |
| 215 |
shrl $16, %0 \n\ |
| 216 |
addw %w2, %w0 \n\ |
| 217 |
adcl $0, %0 \n\ |
| 218 |
notl %0 \n\ |
| 219 |
2: \n\ |
| 220 |
" |
| 221 |
/* Since the input registers which are loaded with iph and ipl |
| 222 |
are modified, we must also specify them as outputs, or gcc |
| 223 |
will assume they contain their original values. */ |
| 224 |
: "=r" (sum), "=r" (iph), "=r" (ihl) |
| 225 |
: "1" (iph), "2" (ihl)); |
| 226 |
return(sum); |
| 227 |
} |
| 228 |
#else |
| 229 |
# error "non-asm version of ip_fast_csum is required but not yet coded" |
| 230 |
#endif |
| 231 |
|
| 232 |
static inline int get_microseconds(void) { |
| 233 |
struct timeval tv; |
| 234 |
gettimeofday(&tv, NULL); |
| 235 |
return tv.tv_sec * 1000000 + tv.tv_usec; |
| 236 |
} |
| 237 |
|
| 238 |
|
| 239 |
static inline int get_milliseconds(void) { |
| 240 |
struct timeval tv; |
| 241 |
gettimeofday(&tv, NULL); |
| 242 |
return tv.tv_sec * 1000 + tv.tv_usec/1000; |
| 243 |
} |
| 244 |
|
| 245 |
#define simple_strtol strtol |
| 246 |
|
| 247 |
#endif |
