git.zerfleddert.de Git - rsbs2/blob - firmware.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <fcntl.h>
   6 #include <unistd.h>
   7 #include <errno.h>
   8 #include <string.h>
   9 #include <strings.h>
  10 #include "rsb-crc.h"
  11
  12 #define FINDSTR(addr, str) (!strncmp((char*)addr, str, strlen(str)))
  13
  14 struct properties {
  15         unsigned int magic;
  16         unsigned char unknown0;
  17         unsigned char unknown1;
  18         unsigned char right_rw;
  19         unsigned char rw_mask;
  20         unsigned char type1;
  21         unsigned char unknown5;
  22         unsigned char unknown6;
  23         unsigned char unknown7;
  24         unsigned char type2;
  25         unsigned char val[];
  26 };
  27
  28 #define PROP_ACTION_TRUE        (1<<0)
  29 #define PROP_ACTION_FALSE       (1<<1)
  30 #define PROP_ACTION_RO          (1<<2)
  31 #define PROP_ACTION_RW          (1<<3)
  32
  33 #define PROP_STATUS_NOTFOUND    (0)
  34 #define PROP_STATUS_WRONGTYPE   (1<<0)
  35 #define PROP_STATUS_WRONGRIGHTS (1<<1)
  36 #define PROP_STATUS_SAMEVAL     (1<<2)
  37 #define PROP_STATUS_SUCCESS     (1<<3)
  38
  39 struct propaction {
  40         char *property;
  41         unsigned int action;
  42         unsigned int status;
  43         struct propaction *next;
  44 };
  45
  46 void show_properties(unsigned char *fw, int len)
  47 {
  48         int i;
  49
  50         for (i = 0; i < (len-100 /* XXX */); i++) {
  51                 if (FINDSTR(fw+i, "/default/fw_prop/") ||
  52                     FINDSTR(fw+i, "/default/fw_setup/") ||
  53                     FINDSTR(fw+i, "/default/oem_prop/")) {
  54                         struct properties *prop;
  55                         unsigned char *pos = fw + i;
  56
  57                         printf("0x%08x: found setting: %s ", i, pos);
  58
  59                         prop = (struct properties*)(pos + strlen((char*)pos) + 1);
  60
  61                         if (prop->magic != 0x83011111) {
  62                                 printf("ignoring...\n");
  63                                 continue;
  64                         }
  65
  66                         if (prop->type1 == 0x00 && prop->type2 == 0x04) {
  67                                 printf("STRING: '%s' ", prop->val);
  68                         } else if (prop->type1 == 0x01 && prop->type2 == 0x01) {
  69                                 printf("BOOL: %s ",(*prop->val ? "TRUE" : "FALSE"));
  70                         } else if (prop->type1 == 0x04 && prop->type2 == 0x02) {
  71                                 printf("VAL: 0x%x ", *((unsigned int*)prop->val));
  72                         } else {
  73                                 printf("0x%02x 0x%2x...ignoring\n", prop->type1, prop->type2);
  74                                 continue;
  75                         }
  76
  77                         if (prop->right_rw == 0x00 && prop->rw_mask == 0x00) {
  78                                 printf("(R-) ");
  79                         } else if (prop->right_rw == 0x01) {
  80                                 printf("(RW mask: 0x%02x) ", prop->rw_mask);
  81                         } else {
  82                                 printf("(UNK 0x%02x 0x%02x) ", prop->right_rw, prop->rw_mask);
  83                         }
  84                         printf("\n");
  85                 }
  86         }
  87 }
  88
  89 void change_properties(unsigned char *fw, int len, struct propaction *paction)
  90 {
  91         int i;
  92         struct propaction *cpaction;
  93
  94         for (i = 0; i < (len-100 /* XXX */); i++) {
  95                 cpaction = paction;
  96                 while (cpaction != NULL) {
  97                         if (FINDSTR(fw + i, cpaction->property)) {
  98                                 break;
  99                         }
 100                         cpaction = cpaction->next;
 101                 }
 102                 if (cpaction != NULL) {
 103                         struct properties *prop;
 104                         unsigned char *pos = fw + i;
 105
 106                         prop = (struct properties*)(pos + strlen((char*)pos) + 1);
 107
 108                         if (prop->magic != 0x83011111) {
 109                                 continue;
 110                         }
 111
 112                         if (cpaction->action & (PROP_ACTION_TRUE|PROP_ACTION_FALSE)) {
 113                                 if (prop->type1 == 0x01 && prop->type2 == 0x01) {
 114                                         if (cpaction->action & PROP_ACTION_TRUE) {
 115                                                 if (*prop->val == 0x00) {
 116                                                         *prop->val = 0x01;
 117                                                         cpaction->status |= PROP_STATUS_SUCCESS;
 118                                                 } else {
 119                                                         cpaction->status |= PROP_STATUS_SAMEVAL;
 120                                                 }
 121                                         } else {
 122                                                 if (*prop->val == 0x01) {
 123                                                         *prop->val = 0x00;
 124                                                         cpaction->status |= PROP_STATUS_SUCCESS;
 125                                                 } else {
 126                                                         cpaction->status |= PROP_STATUS_SAMEVAL;
 127                                                 }
 128                                         }
 129                                 } else {
 130                                         cpaction->status = PROP_STATUS_WRONGTYPE;
 131                                 }
 132                         }
 133                         if (cpaction->action & PROP_ACTION_RW) {
 134                                 if (prop->right_rw == 0x00 && prop->rw_mask == 0x00) {
 135                                         prop->right_rw = 0x01;
 136                                         prop->rw_mask = 0x02;
 137                                         cpaction->status |= PROP_STATUS_SUCCESS;
 138                                 } else {
 139                                         cpaction->status |= PROP_STATUS_WRONGRIGHTS;
 140                                 }
 141                         }
 142                         if (cpaction->action & PROP_ACTION_RO) {
 143                                 if (prop->right_rw == 0x01 && prop->rw_mask == 0x02) {
 144                                         prop->right_rw = 0x00;
 145                                         prop->rw_mask = 0x00;
 146                                         cpaction->status |= PROP_STATUS_SUCCESS;
 147                                 } else {
 148                                         cpaction->status |= PROP_STATUS_WRONGRIGHTS;
 149                                 }
 150                         }
 151                 }
 152         }
 153 }
 154
 155 #define BD_SERIAL1      0x14,0x02
 156 #define BD_ICMB         0x14,0x04
 157 #define BD_LAN          0x14,0x08
 158 #define BD_SERIAL2      0x14,0x10
 159 #define BD_SERIAL3      0x14,0x20
 160 #define BD_USB          0x14,0x40
 161 #define BD_PCI          0x15,0x03
 162 #define BD_LPC          0x15,0x04
 163 #define BD_VGA          0x15,0x08
 164 #define BD_BATTERY      0x15,0x10
 165 #define BD_ACDC         0x15,0x20
 166 #define BD_STANDBY      0x15,0x40
 167 #define BD_POWERCONN    0x15,0x70
 168 #define BD_DVI          0x15,0x80
 169 #define BD_PWRATX       0x16,0x01
 170 #define BD_PWRRELAY     0x16,0x02
 171 #define BD_PS2A         0x19,0xff
 172
 173 #define MAGIC(fn, args...) fn(args)
 174
 175 #define _BD_IS_SET(bd, byte, bits) (bd[byte] & bits)
 176 #define BD_IS_SET(bd, ident) MAGIC(_BD_IS_SET, bd, BD_##ident)
 177 #define BD_TEXT(bd, ident) (BD_IS_SET(bd, ident) ? "TRUE" : "FALSE")
 178
 179 #define _BD_SET(bd, byte, bits) (bd[byte] |= bits)
 180 #define BD_SET(bd, ident) MAGIC(_BD_SET, bd, BD_##ident)
 181
 182 void print_boarddescription(unsigned char *bd)
 183 {
 184         int j;
 185
 186         for (j = 0; j < 32; j++) {
 187                 printf("%02x ", *(bd+j));
 188         }
 189         printf("\n");
 190
 191         /* com/agilent/rmc/amr/AmrMaster.class
 192          * com/agilent/rmc/mgui/RmcPanel.class
 193          * com/agilent/rmc/mgui/panels/AvrManualConfig.class
 194          * com/agilent/rmc/mgui/panels/CardConf.jad
 195          * com/agilent/rmc/mgui/panels/PowerMgmtConf.jad
 196          * com/agilent/rmc/mgui/panels/RemoteDiskConf.jad
 197          */
 198         printf("\tserial1Present\t\t: %s\n", BD_TEXT(bd, SERIAL1));
 199         printf("\ticmbPresent\t\t: %s\n", BD_TEXT(bd, ICMB));
 200         printf("\tlanPresent\t\t: %s\n", BD_TEXT(bd, LAN));
 201         printf("\tserial2Present\t\t: %s\n", BD_TEXT(bd, SERIAL2));
 202         printf("\tserial3Present\t\t: %s\n", BD_TEXT(bd, SERIAL3));
 203         printf("\tusbPresent\t\t: %s\n", BD_TEXT(bd, USB));
 204         printf("\tpciPresent\t\t: %s\n", BD_TEXT(bd, PCI));
 205         printf("\tlpcPresent\t\t: %s\n", BD_TEXT(bd, LPC));
 206         printf("\tvgaPresent\t\t: %s\n", BD_TEXT(bd, VGA));
 207         printf("\tbatteryPresent\t\t: %s\n", BD_TEXT(bd, BATTERY));
 208         printf("\tacdcPresent\t\t: %s\n", BD_TEXT(bd, ACDC));
 209         printf("\tstandbyPresent\t\t: %s\n", BD_TEXT(bd, STANDBY));
 210         printf("\thasPowerConnectors\t: %s\n", BD_TEXT(bd, POWERCONN));
 211         printf("\tdviPresent\t\t: %s\n", BD_TEXT(bd, DVI));
 212         printf("\tpowerSwitchATX\t\t: %s\n", BD_TEXT(bd, PWRATX));
 213         printf("\tpowerSwitchRelay\t: %s\n", BD_TEXT(bd, PWRRELAY));
 214         /* 22 & 4 */
 215         printf("\tps2aPresent\t\t: %s\n", BD_TEXT(bd, PS2A));
 216 }
 217
 218 void handle_boarddescription(unsigned char *fw, int len, int patch)
 219 {
 220         int i;
 221
 222         for (i = len - (strlen("pdata")+1); i > 0; i--) {
 223                 if (FINDSTR(fw+i, "pdata")) {
 224                         unsigned char *pos = fw + i + strlen("pdata") + 1;
 225
 226                         /* MAGIC? */
 227                         if (*((unsigned int*)pos) != 0x00002802) {
 228                                 continue;
 229                         }
 230
 231                         pos += 26;
 232
 233                         /* MAGIC2? */
 234                         if (*((unsigned int*)pos) != 0x00500101) {
 235                                 continue;
 236                         }
 237
 238                         if (patch) {
 239                                 /* Enable relay power switching */
 240                                 BD_SET(pos, PWRRELAY);
 241                         }
 242                         printf("0x%08x: BOARD_DESCRIPTION: ", pos-fw);
 243                         print_boarddescription(pos);
 244
 245                         break;
 246                 }
 247         }
 248 }
 249
 250 void syntax(char *name)
 251 {
 252         fprintf(stderr,"Syntax: %s parameters firmware.bin\n", name);
 253         fprintf(stderr,"parameters as follows:\n");
 254         fprintf(stderr,"\t-d\t\tdisplay all properties of the image\n");
 255         fprintf(stderr,"\t-u\t\tupdate checksum of the image\n");
 256         fprintf(stderr,"\t-b\t\tmodify BOARD_DESCRIPTION for more power-switch options\n");
 257         fprintf(stderr,"\t-t property\tset 'property' to true\n");
 258         fprintf(stderr,"\t-f property\tset 'property' to false\n");
 259         fprintf(stderr,"\t-w property\tallow read-write access to 'property'\n");
 260         fprintf(stderr,"\t-r property\tallow read-only access to 'property'\n");
 261         exit(1);
 262 }
 263
 264 void add_action(int opt, char *optarg, struct propaction **paction) {
 265         struct propaction *pos = *paction;
 266         struct propaction *prev = NULL;
 267
 268         while (pos != NULL) {
 269                 if (!strcmp(pos->property, optarg))
 270                         break;
 271                 prev = pos;
 272                 pos = pos->next;
 273         }
 274
 275         if (pos == NULL) {
 276                 pos = malloc(sizeof(struct propaction));
 277                 if (pos == NULL) {
 278                         perror("malloc");
 279                         exit(1);
 280                 }
 281                 bzero(pos, sizeof(struct propaction));
 282                 pos->property = optarg;
 283
 284                 if (prev == NULL) {
 285                         *paction = pos;
 286                 } else {
 287                         prev->next = pos;
 288                 }
 289         }
 290
 291         switch(opt) {
 292                 case 't':
 293                         if (pos->action & PROP_ACTION_FALSE) {
 294                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 295                                 exit(1);
 296                         }
 297                         pos->action |= PROP_ACTION_TRUE;
 298                         break;
 299                 case 'f':
 300                         if (pos->action & PROP_ACTION_TRUE) {
 301                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 302                                 exit(1);
 303                         }
 304                         pos->action |= PROP_ACTION_FALSE;
 305                         break;
 306                 case 'w':
 307                         if (pos->action & PROP_ACTION_RO) {
 308                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 309                                 exit(1);
 310                         }
 311                         pos->action |= PROP_ACTION_RW;
 312                         break;
 313                 case 'r':
 314                         if (pos->action & PROP_ACTION_RW) {
 315                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 316                                 exit(1);
 317                         }
 318                         pos->action |= PROP_ACTION_RO;
 319                         break;
 320         }
 321 }
 322
 323 int check_crc(unsigned char *fw, int len)
 324 {
 325         int ret;
 326         unsigned int crc, oldcrc;
 327
 328         ret = rsb_crc2(fw, len, 0x55335053, &crc);
 329         oldcrc = (unsigned int)*((unsigned int*)(fw + len - 4));
 330
 331         printf("Checksum: 0x%08x (%s), should be: 0x%08x\n",
 332                 crc,
 333                 (ret ? "NOT OK" : "OK"),
 334                 oldcrc);
 335
 336         return ret;
 337 }
 338
 339 int main(int argc, char **argv)
 340 {
 341         struct stat statbuf;
 342         char *file = NULL;
 343         unsigned char *fw;
 344         int fd;
 345         int remaining;
 346         int ret;
 347         int opt;
 348         unsigned int crc;
 349         struct propaction *paction = NULL;
 350         int showall = 0;
 351         int update_crc = 0;
 352         int patch_bd = 0;
 353         int patch_fw = 0;
 354
 355         if (argc < 2)
 356                 syntax(argv[0]);
 357
 358         while ((opt = getopt(argc, argv, "dubt:f:w:r:")) != -1) {
 359                 switch(opt) {
 360                         case 'd':
 361                                 showall = 1;
 362                                 break;
 363                         case 'u':
 364                                 update_crc = 1;
 365                                 break;
 366                         case 'b':
 367                                 patch_bd = 1;
 368                                 break;
 369                         case 't':
 370                         case 'f':
 371                         case 'w':
 372                         case 'r':
 373                                 patch_fw = 1;
 374                                 add_action(opt, optarg, &paction);
 375                                 break;
 376                         default:
 377                                 syntax(argv[0]);
 378                 }
 379         }
 380
 381         if (argc > optind) {
 382                 file = argv[optind];
 383         } else {
 384                 syntax(argv[0]);
 385         }
 386
 387         if (stat(file, &statbuf) == -1) {
 388                 fprintf(stderr,"%s: ", file);
 389                 perror("stat");
 390                 exit(1);
 391         }
 392
 393         if ((fd = open(file, O_RDONLY)) == -1) {
 394                 fprintf(stderr,"%s: ", file);
 395                 perror("open");
 396                 exit(1);
 397         }
 398
 399         if ((fw = malloc(statbuf.st_size)) == NULL) {
 400                 perror("malloc");
 401                 exit(1);
 402         }
 403
 404         bzero(fw, statbuf.st_size);
 405
 406         remaining = statbuf.st_size;
 407
 408         while(remaining) {
 409                 if ((ret = read(fd, fw + (statbuf.st_size - remaining), remaining)) == -1) {
 410                         perror("read");
 411                         exit(1);
 412                 }
 413                 remaining -= ret;
 414         }
 415         close(fd);
 416
 417         ret = check_crc(fw, statbuf.st_size);
 418         if ((ret != 0) && (!update_crc)) {
 419                 fprintf(stderr,"Checksum incorrect, aborting...\n");
 420         }
 421
 422         if (patch_fw) {
 423                 struct propaction *cpaction = paction;
 424
 425                 change_properties(fw, statbuf.st_size, paction);
 426
 427                 printf("\nProperty change results:\n");
 428                 while(cpaction != NULL) {
 429                         printf("%s: ", cpaction->property);
 430
 431                         if (cpaction->status == PROP_STATUS_NOTFOUND)
 432                                 printf("NOTFOUND ");
 433                         if (cpaction->status & PROP_STATUS_SUCCESS)
 434                                 printf("SUCCESS ");
 435                         if (cpaction->status & PROP_STATUS_SAMEVAL)
 436                                 printf("SAMEVAL ");
 437                         if (cpaction->status & PROP_STATUS_WRONGTYPE)
 438                                 printf("WRONGTYPE ");
 439                         if (cpaction->status & PROP_STATUS_WRONGRIGHTS)
 440                                 printf("WRONGRIGHTS ");
 441                         printf("\n");
 442
 443                         cpaction = cpaction->next;
 444                 }
 445                 printf("\n");
 446         }
 447
 448         if (patch_bd) {
 449                 handle_boarddescription(fw, statbuf.st_size -4, 1);
 450         }
 451
 452         if (showall) {
 453                 show_properties(fw, statbuf.st_size - 4);
 454                 handle_boarddescription(fw, statbuf.st_size -4, 0);
 455         }
 456
 457         if (update_crc || patch_fw || patch_bd) {
 458                 ret = rsb_crc2(fw, statbuf.st_size, 0x55335053, &crc);
 459                 if (ret == 4) {
 460                         *((unsigned int*)(fw + statbuf.st_size - 4)) = crc;
 461                 }
 462
 463                 if (check_crc(fw, statbuf.st_size) == 0) {
 464                         char *newfile;
 465
 466                         newfile = malloc(strlen(file) + strlen(".patched") + 1);
 467                         if (newfile == NULL) {
 468                                 perror("malloc");
 469                                 exit(1);
 470                         }
 471                         strcpy(newfile, file);
 472                         strcat(newfile, ".patched");
 473
 474                         printf("Writing %s\n", newfile);
 475                         if ((fd = open(newfile, O_WRONLY|O_CREAT, 0644)) == -1) {
 476                                 fprintf(stderr,"%s: ", file);
 477                                 perror("open");
 478                                 exit(1);
 479                         }
 480
 481                         remaining = statbuf.st_size;
 482
 483                         while(remaining) {
 484                                 if ((ret = write(fd, fw + (statbuf.st_size - remaining), remaining)) == -1) {
 485                                         perror("write");
 486                                         exit(1);
 487                                 }
 488                                 remaining -= ret;
 489                         }
 490                         close(fd);
 491                 } else {
 492                         fprintf(stderr,"Can't set correct checksum, aborting...\n");
 493                 }
 494         }
 495
 496         exit(0);
 497 }