Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * (C)Copyright 1998,1999 SysKonnect, |
| 4 | * a business unit of Schneider & Koch & Co. Datensysteme GmbH. |
| 5 | * |
| 6 | * See the file "skfddi.c" for further information. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * The information in this file is provided "AS IS" without warranty. |
| 14 | * |
| 15 | ******************************************************************************/ |
| 16 | |
| 17 | |
| 18 | /* |
| 19 | parser for SMT parameters |
| 20 | */ |
| 21 | |
| 22 | #include "h/types.h" |
| 23 | #include "h/fddi.h" |
| 24 | #include "h/smc.h" |
| 25 | #include "h/smt_p.h" |
| 26 | |
| 27 | #define KERNEL |
| 28 | #include "h/smtstate.h" |
| 29 | |
| 30 | #ifndef lint |
| 31 | static const char ID_sccs[] = "@(#)smtparse.c 1.12 98/10/06 (C) SK " ; |
| 32 | #endif |
| 33 | |
| 34 | #ifdef sun |
| 35 | #define _far |
| 36 | #endif |
| 37 | |
| 38 | /* |
| 39 | * convert to BCLK units |
| 40 | */ |
| 41 | #define MS2BCLK(x) ((x)*12500L) |
| 42 | #define US2BCLK(x) ((x/10)*125L) |
| 43 | |
| 44 | /* |
| 45 | * parameter table |
| 46 | */ |
| 47 | static struct s_ptab { |
| 48 | char *pt_name ; |
| 49 | u_short pt_num ; |
| 50 | u_short pt_type ; |
| 51 | u_long pt_min ; |
| 52 | u_long pt_max ; |
| 53 | } ptab[] = { |
| 54 | { "PMFPASSWD",0, 0 } , |
| 55 | { "USERDATA",1, 0 } , |
| 56 | { "LERCUTOFFA",2, 1, 4, 15 } , |
| 57 | { "LERCUTOFFB",3, 1, 4, 15 } , |
| 58 | { "LERALARMA",4, 1, 4, 15 } , |
| 59 | { "LERALARMB",5, 1, 4, 15 } , |
| 60 | { "TMAX",6, 1, 5, 165 } , |
| 61 | { "TMIN",7, 1, 5, 165 } , |
| 62 | { "TREQ",8, 1, 5, 165 } , |
| 63 | { "TVX",9, 1, 2500, 10000 } , |
| 64 | #ifdef ESS |
| 65 | { "SBAPAYLOAD",10, 1, 0, 1562 } , |
| 66 | { "SBAOVERHEAD",11, 1, 50, 5000 } , |
| 67 | { "MAXTNEG",12, 1, 5, 165 } , |
| 68 | { "MINSEGMENTSIZE",13, 1, 0, 4478 } , |
| 69 | { "SBACATEGORY",14, 1, 0, 0xffff } , |
| 70 | { "SYNCHTXMODE",15, 0 } , |
| 71 | #endif |
| 72 | #ifdef SBA |
| 73 | { "SBACOMMAND",16, 0 } , |
| 74 | { "SBAAVAILABLE",17, 1, 0, 100 } , |
| 75 | #endif |
| 76 | { NULL } |
| 77 | } ; |
| 78 | |
| 79 | /* Define maximum string size for values and keybuffer */ |
| 80 | #define MAX_VAL 40 |
| 81 | |
| 82 | /* |
| 83 | * local function declarations |
| 84 | */ |
| 85 | static u_long parse_num(int type, char _far *value, char *v, u_long mn, |
| 86 | u_long mx, int scale); |
| 87 | static int parse_word(char *buf, char _far *text); |
| 88 | |
| 89 | #ifdef SIM |
| 90 | #define DB_MAIN(a,b,c) printf(a,b,c) |
| 91 | #else |
| 92 | #define DB_MAIN(a,b,c) |
| 93 | #endif |
| 94 | |
| 95 | /* |
| 96 | * BEGIN_MANUAL_ENTRY() |
| 97 | * |
| 98 | * int smt_parse_arg(struct s_smc *,char _far *keyword,int type, |
| 99 | char _far *value) |
| 100 | * |
| 101 | * parse SMT parameter |
| 102 | * *keyword |
| 103 | * pointer to keyword, must be \0, \n or \r terminated |
| 104 | * *value pointer to value, either char * or u_long * |
| 105 | * if char * |
| 106 | * pointer to value, must be \0, \n or \r terminated |
| 107 | * if u_long * |
| 108 | * contains binary value |
| 109 | * |
| 110 | * type 0: integer |
| 111 | * 1: string |
| 112 | * return |
| 113 | * 0 parameter parsed ok |
| 114 | * != 0 error |
| 115 | * NOTE: |
| 116 | * function can be called with DS != SS |
| 117 | * |
| 118 | * |
| 119 | * END_MANUAL_ENTRY() |
| 120 | */ |
| 121 | int smt_parse_arg(struct s_smc *smc, char _far *keyword, int type, |
| 122 | char _far *value) |
| 123 | { |
| 124 | char keybuf[MAX_VAL+1]; |
| 125 | char valbuf[MAX_VAL+1]; |
| 126 | char c ; |
| 127 | char *p ; |
| 128 | char *v ; |
| 129 | char *d ; |
| 130 | u_long val = 0 ; |
| 131 | struct s_ptab *pt ; |
| 132 | int st ; |
| 133 | int i ; |
| 134 | |
| 135 | /* |
| 136 | * parse keyword |
| 137 | */ |
| 138 | if ((st = parse_word(keybuf,keyword))) |
| 139 | return(st) ; |
| 140 | /* |
| 141 | * parse value if given as string |
| 142 | */ |
| 143 | if (type == 1) { |
| 144 | if ((st = parse_word(valbuf,value))) |
| 145 | return(st) ; |
| 146 | } |
| 147 | /* |
| 148 | * search in table |
| 149 | */ |
| 150 | st = 0 ; |
| 151 | for (pt = ptab ; (v = pt->pt_name) ; pt++) { |
| 152 | for (p = keybuf ; (c = *p) ; p++,v++) { |
| 153 | if (c != *v) |
| 154 | break ; |
| 155 | } |
| 156 | if (!c && !*v) |
| 157 | break ; |
| 158 | } |
| 159 | if (!v) |
| 160 | return(-1) ; |
| 161 | #if 0 |
| 162 | printf("=>%s<==>%s<=\n",pt->pt_name,valbuf) ; |
| 163 | #endif |
| 164 | /* |
| 165 | * set value in MIB |
| 166 | */ |
| 167 | if (pt->pt_type) |
| 168 | val = parse_num(type,value,valbuf,pt->pt_min,pt->pt_max,1) ; |
| 169 | switch (pt->pt_num) { |
| 170 | case 0 : |
| 171 | v = valbuf ; |
| 172 | d = (char *) smc->mib.fddiPRPMFPasswd ; |
| 173 | for (i = 0 ; i < (signed)sizeof(smc->mib.fddiPRPMFPasswd) ; i++) |
| 174 | *d++ = *v++ ; |
| 175 | DB_MAIN("SET %s = %s\n",pt->pt_name,smc->mib.fddiPRPMFPasswd) ; |
| 176 | break ; |
| 177 | case 1 : |
| 178 | v = valbuf ; |
| 179 | d = (char *) smc->mib.fddiSMTUserData ; |
| 180 | for (i = 0 ; i < (signed)sizeof(smc->mib.fddiSMTUserData) ; i++) |
| 181 | *d++ = *v++ ; |
| 182 | DB_MAIN("SET %s = %s\n",pt->pt_name,smc->mib.fddiSMTUserData) ; |
| 183 | break ; |
| 184 | case 2 : |
| 185 | smc->mib.p[PA].fddiPORTLer_Cutoff = (u_char) val ; |
| 186 | DB_MAIN("SET %s = %d\n", |
| 187 | pt->pt_name,smc->mib.p[PA].fddiPORTLer_Cutoff) ; |
| 188 | break ; |
| 189 | case 3 : |
| 190 | smc->mib.p[PB].fddiPORTLer_Cutoff = (u_char) val ; |
| 191 | DB_MAIN("SET %s = %d\n", |
| 192 | pt->pt_name,smc->mib.p[PB].fddiPORTLer_Cutoff) ; |
| 193 | break ; |
| 194 | case 4 : |
| 195 | smc->mib.p[PA].fddiPORTLer_Alarm = (u_char) val ; |
| 196 | DB_MAIN("SET %s = %d\n", |
| 197 | pt->pt_name,smc->mib.p[PA].fddiPORTLer_Alarm) ; |
| 198 | break ; |
| 199 | case 5 : |
| 200 | smc->mib.p[PB].fddiPORTLer_Alarm = (u_char) val ; |
| 201 | DB_MAIN("SET %s = %d\n", |
| 202 | pt->pt_name,smc->mib.p[PB].fddiPORTLer_Alarm) ; |
| 203 | break ; |
| 204 | case 6 : /* TMAX */ |
| 205 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 206 | smc->mib.a[PATH0].fddiPATHT_MaxLowerBound = |
| 207 | (u_long) -MS2BCLK((long)val) ; |
| 208 | break ; |
| 209 | case 7 : /* TMIN */ |
| 210 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 211 | smc->mib.m[MAC0].fddiMACT_Min = |
| 212 | (u_long) -MS2BCLK((long)val) ; |
| 213 | break ; |
| 214 | case 8 : /* TREQ */ |
| 215 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 216 | smc->mib.a[PATH0].fddiPATHMaxT_Req = |
| 217 | (u_long) -MS2BCLK((long)val) ; |
| 218 | break ; |
| 219 | case 9 : /* TVX */ |
| 220 | DB_MAIN("SET %s = %d \n",pt->pt_name,val) ; |
| 221 | smc->mib.a[PATH0].fddiPATHTVXLowerBound = |
| 222 | (u_long) -US2BCLK((long)val) ; |
| 223 | break ; |
| 224 | #ifdef ESS |
| 225 | case 10 : /* SBAPAYLOAD */ |
| 226 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 227 | if (smc->mib.fddiESSPayload != val) { |
| 228 | smc->ess.raf_act_timer_poll = TRUE ; |
| 229 | smc->mib.fddiESSPayload = val ; |
| 230 | } |
| 231 | break ; |
| 232 | case 11 : /* SBAOVERHEAD */ |
| 233 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 234 | smc->mib.fddiESSOverhead = val ; |
| 235 | break ; |
| 236 | case 12 : /* MAXTNEG */ |
| 237 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 238 | smc->mib.fddiESSMaxTNeg = (u_long) -MS2BCLK((long)val) ; |
| 239 | break ; |
| 240 | case 13 : /* MINSEGMENTSIZE */ |
| 241 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 242 | smc->mib.fddiESSMinSegmentSize = val ; |
| 243 | break ; |
| 244 | case 14 : /* SBACATEGORY */ |
| 245 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 246 | smc->mib.fddiESSCategory = |
| 247 | (smc->mib.fddiESSCategory & 0xffff) | |
| 248 | ((u_long)(val << 16)) ; |
| 249 | break ; |
| 250 | case 15 : /* SYNCHTXMODE */ |
| 251 | /* do not use memcmp(valbuf,"ALL",3) because DS != SS */ |
| 252 | if (valbuf[0] == 'A' && valbuf[1] == 'L' && valbuf[2] == 'L') { |
| 253 | smc->mib.fddiESSSynchTxMode = TRUE ; |
| 254 | DB_MAIN("SET %s = %s\n",pt->pt_name,valbuf) ; |
| 255 | } |
| 256 | /* if (!memcmp(valbuf,"SPLIT",5)) { */ |
| 257 | if (valbuf[0] == 'S' && valbuf[1] == 'P' && valbuf[2] == 'L' && |
| 258 | valbuf[3] == 'I' && valbuf[4] == 'T') { |
| 259 | DB_MAIN("SET %s = %s\n",pt->pt_name,valbuf) ; |
| 260 | smc->mib.fddiESSSynchTxMode = FALSE ; |
| 261 | } |
| 262 | break ; |
| 263 | #endif |
| 264 | #ifdef SBA |
| 265 | case 16 : /* SBACOMMAND */ |
| 266 | /* if (!memcmp(valbuf,"START",5)) { */ |
| 267 | if (valbuf[0] == 'S' && valbuf[1] == 'T' && valbuf[2] == 'A' && |
| 268 | valbuf[3] == 'R' && valbuf[4] == 'T') { |
| 269 | DB_MAIN("SET %s = %s\n",pt->pt_name,valbuf) ; |
| 270 | smc->mib.fddiSBACommand = SB_START ; |
| 271 | } |
| 272 | /* if (!memcmp(valbuf,"STOP",4)) { */ |
| 273 | if (valbuf[0] == 'S' && valbuf[1] == 'T' && valbuf[2] == 'O' && |
| 274 | valbuf[3] == 'P') { |
| 275 | DB_MAIN("SET %s = %s\n",pt->pt_name,valbuf) ; |
| 276 | smc->mib.fddiSBACommand = SB_STOP ; |
| 277 | } |
| 278 | break ; |
| 279 | case 17 : /* SBAAVAILABLE */ |
| 280 | DB_MAIN("SET %s = %d\n",pt->pt_name,val) ; |
| 281 | smc->mib.fddiSBAAvailable = (u_char) val ; |
| 282 | break ; |
| 283 | #endif |
| 284 | } |
| 285 | return(0) ; |
| 286 | } |
| 287 | |
| 288 | static int parse_word(char *buf, char _far *text) |
| 289 | { |
| 290 | char c ; |
| 291 | char *p ; |
| 292 | int p_len ; |
| 293 | int quote ; |
| 294 | int i ; |
| 295 | int ok ; |
| 296 | |
| 297 | /* |
| 298 | * skip leading white space |
| 299 | */ |
| 300 | p = buf ; |
| 301 | for (i = 0 ; i < MAX_VAL ; i++) |
| 302 | *p++ = 0 ; |
| 303 | p = buf ; |
| 304 | p_len = 0 ; |
| 305 | ok = 0 ; |
| 306 | while ( (c = *text++) && (c != '\n') && (c != '\r')) { |
| 307 | if ((c != ' ') && (c != '\t')) { |
| 308 | ok = 1 ; |
| 309 | break ; |
| 310 | } |
| 311 | } |
| 312 | if (!ok) |
| 313 | return(-1) ; |
| 314 | if (c == '"') { |
| 315 | quote = 1 ; |
| 316 | } |
| 317 | else { |
| 318 | quote = 0 ; |
| 319 | text-- ; |
| 320 | } |
| 321 | /* |
| 322 | * parse valbuf |
| 323 | */ |
| 324 | ok = 0 ; |
| 325 | while (!ok && p_len < MAX_VAL-1 && (c = *text++) && (c != '\n') |
| 326 | && (c != '\r')) { |
| 327 | switch (quote) { |
| 328 | case 0 : |
| 329 | if ((c == ' ') || (c == '\t') || (c == '=')) { |
| 330 | ok = 1 ; |
| 331 | break ; |
| 332 | } |
| 333 | *p++ = c ; |
| 334 | p_len++ ; |
| 335 | break ; |
| 336 | case 2 : |
| 337 | *p++ = c ; |
| 338 | p_len++ ; |
| 339 | quote = 1 ; |
| 340 | break ; |
| 341 | case 1 : |
| 342 | switch (c) { |
| 343 | case '"' : |
| 344 | ok = 1 ; |
| 345 | break ; |
| 346 | case '\\' : |
| 347 | quote = 2 ; |
| 348 | break ; |
| 349 | default : |
| 350 | *p++ = c ; |
| 351 | p_len++ ; |
| 352 | } |
| 353 | } |
| 354 | } |
| 355 | *p++ = 0 ; |
| 356 | for (p = buf ; (c = *p) ; p++) { |
| 357 | if (c >= 'a' && c <= 'z') |
| 358 | *p = c + 'A' - 'a' ; |
| 359 | } |
| 360 | return(0) ; |
| 361 | } |
| 362 | |
| 363 | static u_long parse_num(int type, char _far *value, char *v, u_long mn, |
| 364 | u_long mx, int scale) |
| 365 | { |
| 366 | u_long x = 0 ; |
| 367 | char c ; |
| 368 | |
| 369 | if (type == 0) { /* integer */ |
| 370 | u_long _far *l ; |
| 371 | u_long u1 ; |
| 372 | |
| 373 | l = (u_long _far *) value ; |
| 374 | u1 = *l ; |
| 375 | /* |
| 376 | * if the value is negative take the lower limit |
| 377 | */ |
| 378 | if ((long)u1 < 0) { |
| 379 | if (- ((long)u1) > (long) mx) { |
| 380 | u1 = 0 ; |
| 381 | } |
| 382 | else { |
| 383 | u1 = (u_long) - ((long)u1) ; |
| 384 | } |
| 385 | } |
| 386 | x = u1 ; |
| 387 | } |
| 388 | else { /* string */ |
| 389 | int sign = 0 ; |
| 390 | |
| 391 | if (*v == '-') { |
| 392 | sign = 1 ; |
| 393 | } |
| 394 | while ((c = *v++) && (c >= '0') && (c <= '9')) { |
| 395 | x = x * 10 + c - '0' ; |
| 396 | } |
| 397 | if (scale == 10) { |
| 398 | x *= 10 ; |
| 399 | if (c == '.') { |
| 400 | if ((c = *v++) && (c >= '0') && (c <= '9')) { |
| 401 | x += c - '0' ; |
| 402 | } |
| 403 | } |
| 404 | } |
| 405 | if (sign) |
| 406 | x = (u_long) - ((long)x) ; |
| 407 | } |
| 408 | /* |
| 409 | * if the value is negative |
| 410 | * and the absolute value is outside the limits |
| 411 | * take the lower limit |
| 412 | * else |
| 413 | * take the absoute value |
| 414 | */ |
| 415 | if ((long)x < 0) { |
| 416 | if (- ((long)x) > (long) mx) { |
| 417 | x = 0 ; |
| 418 | } |
| 419 | else { |
| 420 | x = (u_long) - ((long)x) ; |
| 421 | } |
| 422 | } |
| 423 | if (x < mn) |
| 424 | return(mn) ; |
| 425 | else if (x > mx) |
| 426 | return(mx) ; |
| 427 | return(x) ; |
| 428 | } |
| 429 | |
| 430 | #if 0 |
| 431 | struct s_smc SMC ; |
| 432 | main() |
| 433 | { |
| 434 | char *p ; |
| 435 | char *v ; |
| 436 | char buf[100] ; |
| 437 | int toggle = 0 ; |
| 438 | |
| 439 | while (gets(buf)) { |
| 440 | p = buf ; |
| 441 | while (*p && ((*p == ' ') || (*p == '\t'))) |
| 442 | p++ ; |
| 443 | |
| 444 | while (*p && ((*p != ' ') && (*p != '\t'))) |
| 445 | p++ ; |
| 446 | |
| 447 | v = p ; |
| 448 | while (*v && ((*v == ' ') || (*v == '\t'))) |
| 449 | v++ ; |
| 450 | if ((*v >= '0') && (*v <= '9')) { |
| 451 | toggle = !toggle ; |
| 452 | if (toggle) { |
| 453 | u_long l ; |
| 454 | l = atol(v) ; |
| 455 | smt_parse_arg(&SMC,buf,0,(char _far *)&l) ; |
| 456 | } |
| 457 | else |
| 458 | smt_parse_arg(&SMC,buf,1,(char _far *)p) ; |
| 459 | } |
| 460 | else { |
| 461 | smt_parse_arg(&SMC,buf,1,(char _far *)p) ; |
| 462 | } |
| 463 | } |
| 464 | exit(0) ; |
| 465 | } |
| 466 | #endif |
| 467 | |