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 ATX and relay power switching */
 240                                 BD_SET(pos, PWRATX);
 241                                 BD_SET(pos, PWRRELAY);
 242                                 /* Serial */
 243                                 BD_SET(pos, SERIAL2);
 244                                 /* ATX standby */
 245                                 BD_SET(pos, STANDBY);
 246                         }
 247                         printf("0x%08x: BOARD_DESCRIPTION: ", pos-fw);
 248                         print_boarddescription(pos);
 249
 250                         break;
 251                 }
 252         }
 253 }
 254
 255 void syntax(char *name)
 256 {
 257         fprintf(stderr,"Syntax: %s parameters firmware.bin\n", name);
 258         fprintf(stderr,"parameters as follows:\n");
 259         fprintf(stderr,"\t-d\t\tdisplay all properties of the image\n");
 260         fprintf(stderr,"\t-u\t\tupdate checksum of the image\n");
 261         fprintf(stderr,"\t-b\t\tmodify BOARD_DESCRIPTION for more power-switch options\n");
 262         fprintf(stderr,"\t-t property\tset 'property' to true\n");
 263         fprintf(stderr,"\t-f property\tset 'property' to false\n");
 264         fprintf(stderr,"\t-w property\tallow read-write access to 'property'\n");
 265         fprintf(stderr,"\t-r property\tallow read-only access to 'property'\n");
 266         exit(1);
 267 }
 268
 269 void add_action(int opt, char *optarg, struct propaction **paction) {
 270         struct propaction *pos = *paction;
 271         struct propaction *prev = NULL;
 272
 273         while (pos != NULL) {
 274                 if (!strcmp(pos->property, optarg))
 275                         break;
 276                 prev = pos;
 277                 pos = pos->next;
 278         }
 279
 280         if (pos == NULL) {
 281                 pos = malloc(sizeof(struct propaction));
 282                 if (pos == NULL) {
 283                         perror("malloc");
 284                         exit(1);
 285                 }
 286                 bzero(pos, sizeof(struct propaction));
 287                 pos->property = optarg;
 288
 289                 if (prev == NULL) {
 290                         *paction = pos;
 291                 } else {
 292                         prev->next = pos;
 293                 }
 294         }
 295
 296         switch(opt) {
 297                 case 't':
 298                         if (pos->action & PROP_ACTION_FALSE) {
 299                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 300                                 exit(1);
 301                         }
 302                         pos->action |= PROP_ACTION_TRUE;
 303                         break;
 304                 case 'f':
 305                         if (pos->action & PROP_ACTION_TRUE) {
 306                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 307                                 exit(1);
 308                         }
 309                         pos->action |= PROP_ACTION_FALSE;
 310                         break;
 311                 case 'w':
 312                         if (pos->action & PROP_ACTION_RO) {
 313                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 314                                 exit(1);
 315                         }
 316                         pos->action |= PROP_ACTION_RW;
 317                         break;
 318                 case 'r':
 319                         if (pos->action & PROP_ACTION_RW) {
 320                                 fprintf(stderr,"inconsistent requests for %s\n",pos->property);
 321                                 exit(1);
 322                         }
 323                         pos->action |= PROP_ACTION_RO;
 324                         break;
 325         }
 326 }
 327
 328 int check_crc(unsigned char *fw, int len)
 329 {
 330         int ret;
 331         unsigned int crc, oldcrc;
 332
 333         ret = rsb_crc2(fw, len, 0x55335053, &crc);
 334         oldcrc = (unsigned int)*((unsigned int*)(fw + len - 4));
 335
 336         printf("Checksum: 0x%08x (%s), should be: 0x%08x\n",
 337                 crc,
 338                 (ret ? "NOT OK" : "OK"),
 339                 oldcrc);
 340
 341         return ret;
 342 }
 343
 344 int main(int argc, char **argv)
 345 {
 346         struct stat statbuf;
 347         char *file = NULL;
 348         unsigned char *fw;
 349         int fd;
 350         int remaining;
 351         int ret;
 352         int opt;
 353         unsigned int crc;
 354         struct propaction *paction = NULL;
 355         int showall = 0;
 356         int update_crc = 0;
 357         int patch_bd = 0;
 358         int patch_fw = 0;
 359
 360         if (argc < 2)
 361                 syntax(argv[0]);
 362
 363         while ((opt = getopt(argc, argv, "dubt:f:w:r:")) != -1) {
 364                 switch(opt) {
 365                         case 'd':
 366                                 showall = 1;
 367                                 break;
 368                         case 'u':
 369                                 update_crc = 1;
 370                                 break;
 371                         case 'b':
 372                                 patch_bd = 1;
 373                                 break;
 374                         case 't':
 375                         case 'f':
 376                         case 'w':
 377                         case 'r':
 378                                 patch_fw = 1;
 379                                 add_action(opt, optarg, &paction);
 380                                 break;
 381                         default:
 382                                 syntax(argv[0]);
 383                 }
 384         }
 385
 386         if (argc > optind) {
 387                 file = argv[optind];
 388         } else {
 389                 syntax(argv[0]);
 390         }
 391
 392         if (stat(file, &statbuf) == -1) {
 393                 fprintf(stderr,"%s: ", file);
 394                 perror("stat");
 395                 exit(1);
 396         }
 397
 398         if ((fd = open(file, O_RDONLY)) == -1) {
 399                 fprintf(stderr,"%s: ", file);
 400                 perror("open");
 401                 exit(1);
 402         }
 403
 404         if ((fw = malloc(statbuf.st_size)) == NULL) {
 405                 perror("malloc");
 406                 exit(1);
 407         }
 408
 409         bzero(fw, statbuf.st_size);
 410
 411         remaining = statbuf.st_size;
 412
 413         while(remaining) {
 414                 if ((ret = read(fd, fw + (statbuf.st_size - remaining), remaining)) == -1) {
 415                         perror("read");
 416                         exit(1);
 417                 }
 418                 remaining -= ret;
 419         }
 420         close(fd);
 421
 422         ret = check_crc(fw, statbuf.st_size);
 423         if ((ret != 0) && (!update_crc)) {
 424                 fprintf(stderr,"Checksum incorrect, aborting...\n");
 425         }
 426
 427         if (patch_fw) {
 428                 struct propaction *cpaction = paction;
 429
 430                 change_properties(fw, statbuf.st_size, paction);
 431
 432                 printf("\nProperty change results:\n");
 433                 while(cpaction != NULL) {
 434                         printf("%s: ", cpaction->property);
 435
 436                         if (cpaction->status == PROP_STATUS_NOTFOUND)
 437                                 printf("NOTFOUND ");
 438                         if (cpaction->status & PROP_STATUS_SUCCESS)
 439                                 printf("SUCCESS ");
 440                         if (cpaction->status & PROP_STATUS_SAMEVAL)
 441                                 printf("SAMEVAL ");
 442                         if (cpaction->status & PROP_STATUS_WRONGTYPE)
 443                                 printf("WRONGTYPE ");
 444                         if (cpaction->status & PROP_STATUS_WRONGRIGHTS)
 445                                 printf("WRONGRIGHTS ");
 446                         printf("\n");
 447
 448                         cpaction = cpaction->next;
 449                 }
 450                 printf("\n");
 451         }
 452
 453         if (patch_bd) {
 454                 handle_boarddescription(fw, statbuf.st_size -4, 1);
 455         }
 456
 457         if (showall) {
 458                 show_properties(fw, statbuf.st_size - 4);
 459                 handle_boarddescription(fw, statbuf.st_size -4, 0);
 460         }
 461
 462         if (update_crc || patch_fw || patch_bd) {
 463                 ret = rsb_crc2(fw, statbuf.st_size, 0x55335053, &crc);
 464                 if (ret == 4) {
 465                         *((unsigned int*)(fw + statbuf.st_size - 4)) = crc;
 466                 }
 467
 468                 if (check_crc(fw, statbuf.st_size) == 0) {
 469                         char *newfile;
 470
 471                         newfile = malloc(strlen(file) + strlen(".patched") + 1);
 472                         if (newfile == NULL) {
 473                                 perror("malloc");
 474                                 exit(1);
 475                         }
 476                         strcpy(newfile, file);
 477                         strcat(newfile, ".patched");
 478
 479                         printf("Writing %s\n", newfile);
 480                         if ((fd = open(newfile, O_WRONLY|O_CREAT, 0644)) == -1) {
 481                                 fprintf(stderr,"%s: ", file);
 482                                 perror("open");
 483                                 exit(1);
 484                         }
 485
 486                         remaining = statbuf.st_size;
 487
 488                         while(remaining) {
 489                                 if ((ret = write(fd, fw + (statbuf.st_size - remaining), remaining)) == -1) {
 490                                         perror("write");
 491                                         exit(1);
 492                                 }
 493                                 remaining -= ret;
 494                         }
 495                         close(fd);
 496                 } else {
 497                         fprintf(stderr,"Can't set correct checksum, aborting...\n");
 498                 }
 499         }
 500
 501         exit(0);
 502 }