tools/firmware-utils/src/tplink-safeloader.c

   1 /*
   2   Copyright (c) 2014, Matthias Schiffer <mschiffer@universe-factory.net>
   3   All rights reserved.
   4
   5   Redistribution and use in source and binary forms, with or without
   6   modification, are permitted provided that the following conditions are met:
   7
   8     1. Redistributions of source code must retain the above copyright notice,
   9        this list of conditions and the following disclaimer.
  10     2. Redistributions in binary form must reproduce the above copyright notice,
  11        this list of conditions and the following disclaimer in the documentation
  12        and/or other materials provided with the distribution.
  13
  14   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  15   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  17   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  18   FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  20   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  21   CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  22   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24 */
  25
  26
  27 /*
  28    tplink-safeloader
  29
  30    Image generation tool for the TP-LINK SafeLoader as seen on
  31    TP-LINK Pharos devices (CPE210/220/510/520)
  32 */
  33
  34
  35 #include <assert.h>
  36 #include <errno.h>
  37 #include <stdbool.h>
  38 #include <stdio.h>
  39 #include <stdint.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <time.h>
  43 #include <unistd.h>
  44
  45 #include <arpa/inet.h>
  46
  47 #include <sys/types.h>
  48 #include <sys/stat.h>
  49 #include <limits.h>
  50
  51 #include "md5.h"
  52
  53
  54 #define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); })
  55
  56
  57 #define MAX_PARTITIONS  32
  58
  59 /** An image partition table entry */
  60 struct image_partition_entry {
  61         const char *name;
  62         size_t size;
  63         uint8_t *data;
  64 };
  65
  66 /** A flash partition table entry */
  67 struct flash_partition_entry {
  68         const char *name;
  69         uint32_t base;
  70         uint32_t size;
  71 };
  72
  73 /** Firmware layout description */
  74 struct device_info {
  75         const char *id;
  76         const char *vendor;
  77         const char *support_list;
  78         char support_trail;
  79         const char *soft_ver;
  80         const struct flash_partition_entry partitions[MAX_PARTITIONS+1];
  81         const char *first_sysupgrade_partition;
  82         const char *last_sysupgrade_partition;
  83 };
  84
  85 /** The content of the soft-version structure */
  86 struct __attribute__((__packed__)) soft_version {
  87         uint32_t magic;
  88         uint32_t zero;
  89         uint8_t pad1;
  90         uint8_t version_major;
  91         uint8_t version_minor;
  92         uint8_t version_patch;
  93         uint8_t year_hi;
  94         uint8_t year_lo;
  95         uint8_t month;
  96         uint8_t day;
  97         uint32_t rev;
  98         uint8_t pad2;
  99 };
 100
 101
 102 static const uint8_t jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
 103
 104
 105 /**
 106    Salt for the MD5 hash
 107
 108    Fortunately, TP-LINK seems to use the same salt for most devices which use
 109    the new image format.
 110 */
 111 static const uint8_t md5_salt[16] = {
 112         0x7a, 0x2b, 0x15, 0xed,
 113         0x9b, 0x98, 0x59, 0x6d,
 114         0xe5, 0x04, 0xab, 0x44,
 115         0xac, 0x2a, 0x9f, 0x4e,
 116 };
 117
 118
 119 /** Firmware layout table */
 120 static struct device_info boards[] = {
 121         /** Firmware layout for the CPE210/220 */
 122         {
 123                 .id     = "CPE210",
 124                 .vendor = "CPE510(TP-LINK|UN|N300-5):1.0\r\n",
 125                 .support_list =
 126                         "SupportList:\r\n"
 127                         "CPE210(TP-LINK|UN|N300-2):1.0\r\n"
 128                         "CPE210(TP-LINK|UN|N300-2):1.1\r\n"
 129                         "CPE210(TP-LINK|US|N300-2):1.1\r\n"
 130                         "CPE210(TP-LINK|EU|N300-2):1.1\r\n"
 131                         "CPE220(TP-LINK|UN|N300-2):1.1\r\n"
 132                         "CPE220(TP-LINK|US|N300-2):1.1\r\n"
 133                         "CPE220(TP-LINK|EU|N300-2):1.1\r\n",
 134                 .support_trail = '\xff',
 135                 .soft_ver = NULL,
 136
 137                 .partitions = {
 138                         {"fs-uboot", 0x00000, 0x20000},
 139                         {"partition-table", 0x20000, 0x02000},
 140                         {"default-mac", 0x30000, 0x00020},
 141                         {"product-info", 0x31100, 0x00100},
 142                         {"signature", 0x32000, 0x00400},
 143                         {"os-image", 0x40000, 0x170000},
 144                         {"soft-version", 0x1b0000, 0x00100},
 145                         {"support-list", 0x1b1000, 0x00400},
 146                         {"file-system", 0x1c0000, 0x600000},
 147                         {"user-config", 0x7c0000, 0x10000},
 148                         {"default-config", 0x7d0000, 0x10000},
 149                         {"log", 0x7e0000, 0x10000},
 150                         {"radio", 0x7f0000, 0x10000},
 151                         {NULL, 0, 0}
 152                 },
 153
 154                 .first_sysupgrade_partition = "os-image",
 155                 .last_sysupgrade_partition = "file-system",
 156         },
 157
 158         /** Firmware layout for the CPE510/520 */
 159         {
 160                 .id     = "CPE510",
 161                 .vendor = "CPE510(TP-LINK|UN|N300-5):1.0\r\n",
 162                 .support_list =
 163                         "SupportList:\r\n"
 164                         "CPE510(TP-LINK|UN|N300-5):1.0\r\n"
 165                         "CPE510(TP-LINK|UN|N300-5):1.1\r\n"
 166                         "CPE510(TP-LINK|UN|N300-5):1.1\r\n"
 167                         "CPE510(TP-LINK|US|N300-5):1.1\r\n"
 168                         "CPE510(TP-LINK|EU|N300-5):1.1\r\n"
 169                         "CPE520(TP-LINK|UN|N300-5):1.1\r\n"
 170                         "CPE520(TP-LINK|US|N300-5):1.1\r\n"
 171                         "CPE520(TP-LINK|EU|N300-5):1.1\r\n",
 172                 .support_trail = '\xff',
 173                 .soft_ver = NULL,
 174
 175                 .partitions = {
 176                         {"fs-uboot", 0x00000, 0x20000},
 177                         {"partition-table", 0x20000, 0x02000},
 178                         {"default-mac", 0x30000, 0x00020},
 179                         {"product-info", 0x31100, 0x00100},
 180                         {"signature", 0x32000, 0x00400},
 181                         {"os-image", 0x40000, 0x170000},
 182                         {"soft-version", 0x1b0000, 0x00100},
 183                         {"support-list", 0x1b1000, 0x00400},
 184                         {"file-system", 0x1c0000, 0x600000},
 185                         {"user-config", 0x7c0000, 0x10000},
 186                         {"default-config", 0x7d0000, 0x10000},
 187                         {"log", 0x7e0000, 0x10000},
 188                         {"radio", 0x7f0000, 0x10000},
 189                         {NULL, 0, 0}
 190                 },
 191
 192                 .first_sysupgrade_partition = "os-image",
 193                 .last_sysupgrade_partition = "file-system",
 194         },
 195
 196         {
 197                 .id     = "WBS210",
 198                 .vendor = "CPE510(TP-LINK|UN|N300-5):1.0\r\n",
 199                 .support_list =
 200                         "SupportList:\r\n"
 201                         "WBS210(TP-LINK|UN|N300-2):1.20\r\n"
 202                         "WBS210(TP-LINK|US|N300-2):1.20\r\n"
 203                         "WBS210(TP-LINK|EU|N300-2):1.20\r\n",
 204                 .support_trail = '\xff',
 205                 .soft_ver = NULL,
 206
 207                 .partitions = {
 208                         {"fs-uboot", 0x00000, 0x20000},
 209                         {"partition-table", 0x20000, 0x02000},
 210                         {"default-mac", 0x30000, 0x00020},
 211                         {"product-info", 0x31100, 0x00100},
 212                         {"signature", 0x32000, 0x00400},
 213                         {"os-image", 0x40000, 0x170000},
 214                         {"soft-version", 0x1b0000, 0x00100},
 215                         {"support-list", 0x1b1000, 0x00400},
 216                         {"file-system", 0x1c0000, 0x600000},
 217                         {"user-config", 0x7c0000, 0x10000},
 218                         {"default-config", 0x7d0000, 0x10000},
 219                         {"log", 0x7e0000, 0x10000},
 220                         {"radio", 0x7f0000, 0x10000},
 221                         {NULL, 0, 0}
 222                 },
 223
 224                 .first_sysupgrade_partition = "os-image",
 225                 .last_sysupgrade_partition = "file-system",
 226         },
 227
 228         {
 229                 .id     = "WBS510",
 230                 .vendor = "CPE510(TP-LINK|UN|N300-5):1.0\r\n",
 231                 .support_list =
 232                         "SupportList:\r\n"
 233                         "WBS510(TP-LINK|UN|N300-5):1.20\r\n"
 234                         "WBS510(TP-LINK|US|N300-5):1.20\r\n"
 235                         "WBS510(TP-LINK|EU|N300-5):1.20\r\n",
 236                 .support_trail = '\xff',
 237                 .soft_ver = NULL,
 238
 239                 .partitions = {
 240                         {"fs-uboot", 0x00000, 0x20000},
 241                         {"partition-table", 0x20000, 0x02000},
 242                         {"default-mac", 0x30000, 0x00020},
 243                         {"product-info", 0x31100, 0x00100},
 244                         {"signature", 0x32000, 0x00400},
 245                         {"os-image", 0x40000, 0x170000},
 246                         {"soft-version", 0x1b0000, 0x00100},
 247                         {"support-list", 0x1b1000, 0x00400},
 248                         {"file-system", 0x1c0000, 0x600000},
 249                         {"user-config", 0x7c0000, 0x10000},
 250                         {"default-config", 0x7d0000, 0x10000},
 251                         {"log", 0x7e0000, 0x10000},
 252                         {"radio", 0x7f0000, 0x10000},
 253                         {NULL, 0, 0}
 254                 },
 255
 256                 .first_sysupgrade_partition = "os-image",
 257                 .last_sysupgrade_partition = "file-system",
 258         },
 259
 260         /** Firmware layout for the C2600 */
 261         {
 262                 .id = "C2600",
 263                 .vendor = "",
 264                 .support_list =
 265                         "SupportList:\r\n"
 266                         "{product_name:Archer C2600,product_ver:1.0.0,special_id:00000000}\r\n",
 267                 .support_trail = '\x00',
 268                 .soft_ver = NULL,
 269
 270                 .partitions = {
 271                         {"SBL1", 0x00000, 0x20000},
 272                         {"MIBIB", 0x20000, 0x20000},
 273                         {"SBL2", 0x40000, 0x20000},
 274                         {"SBL3", 0x60000, 0x30000},
 275                         {"DDRCONFIG", 0x90000, 0x10000},
 276                         {"SSD", 0xa0000, 0x10000},
 277                         {"TZ", 0xb0000, 0x30000},
 278                         {"RPM", 0xe0000, 0x20000},
 279                         {"fs-uboot", 0x100000, 0x70000},
 280                         {"uboot-env", 0x170000, 0x40000},
 281                         {"radio", 0x1b0000, 0x40000},
 282                         {"os-image", 0x1f0000, 0x200000},
 283                         {"file-system", 0x3f0000, 0x1b00000},
 284                         {"default-mac", 0x1ef0000, 0x00200},
 285                         {"pin", 0x1ef0200, 0x00200},
 286                         {"product-info", 0x1ef0400, 0x0fc00},
 287                         {"partition-table", 0x1f00000, 0x10000},
 288                         {"soft-version", 0x1f10000, 0x10000},
 289                         {"support-list", 0x1f20000, 0x10000},
 290                         {"profile", 0x1f30000, 0x10000},
 291                         {"default-config", 0x1f40000, 0x10000},
 292                         {"user-config", 0x1f50000, 0x40000},
 293                         {"qos-db", 0x1f90000, 0x40000},
 294                         {"usb-config", 0x1fd0000, 0x10000},
 295                         {"log", 0x1fe0000, 0x20000},
 296                         {NULL, 0, 0}
 297                 },
 298
 299                 .first_sysupgrade_partition = "os-image",
 300                 .last_sysupgrade_partition = "file-system"
 301         },
 302
 303         /** Firmware layout for the C25v1 */
 304         {
 305                 .id = "ARCHER-C25-V1",
 306                 .support_list =
 307                         "SupportList:\n"
 308                         "{product_name:ArcherC25,product_ver:1.0.0,special_id:00000000}\n"
 309                         "{product_name:ArcherC25,product_ver:1.0.0,special_id:55530000}\n"
 310                         "{product_name:ArcherC25,product_ver:1.0.0,special_id:45550000}\n",
 311                 .support_trail = '\x00',
 312                 .soft_ver = "soft_ver:1.0.0\n",
 313
 314                 /**
 315                     We use a bigger os-image partition than the stock images (and thus
 316                     smaller file-system), as our kernel doesn't fit in the stock firmware's
 317                     1MB os-image.
 318                 */
 319                 .partitions = {
 320                         {"factory-boot", 0x00000, 0x20000},
 321                         {"fs-uboot", 0x20000, 0x10000},
 322                         {"os-image", 0x30000, 0x180000},        /* Stock: base 0x30000 size 0x100000 */
 323                         {"file-system", 0x1b0000, 0x620000},    /* Stock: base 0x130000 size 0x6a0000 */
 324                         {"user-config", 0x7d0000, 0x04000},
 325                         {"default-mac", 0x7e0000, 0x00100},
 326                         {"device-id", 0x7e0100, 0x00100},
 327                         {"extra-para", 0x7e0200, 0x00100},
 328                         {"pin", 0x7e0300, 0x00100},
 329                         {"support-list", 0x7e0400, 0x00400},
 330                         {"soft-version", 0x7e0800, 0x00400},
 331                         {"product-info", 0x7e0c00, 0x01400},
 332                         {"partition-table", 0x7e2000, 0x01000},
 333                         {"profile", 0x7e3000, 0x01000},
 334                         {"default-config", 0x7e4000, 0x04000},
 335                         {"merge-config", 0x7ec000, 0x02000},
 336                         {"qos-db", 0x7ee000, 0x02000},
 337                         {"radio", 0x7f0000, 0x10000},
 338                         {NULL, 0, 0}
 339                 },
 340
 341                 .first_sysupgrade_partition = "os-image",
 342                 .last_sysupgrade_partition = "file-system",
 343         },
 344
 345         /** Firmware layout for the C58v1 */
 346         {
 347                 .id     = "ARCHER-C58-V1",
 348                 .vendor = "",
 349                 .support_list =
 350                         "SupportList:\r\n"
 351                         "{product_name:Archer C58,product_ver:1.0.0,special_id:00000000}\r\n"
 352                         "{product_name:Archer C58,product_ver:1.0.0,special_id:45550000}\r\n"
 353                         "{product_name:Archer C58,product_ver:1.0.0,special_id:55530000}\r\n",
 354                 .support_trail = '\x00',
 355                 .soft_ver = "soft_ver:1.0.0\n",
 356
 357                 .partitions = {
 358                         {"fs-uboot", 0x00000, 0x10000},
 359                         {"default-mac", 0x10000, 0x00200},
 360                         {"pin", 0x10200, 0x00200},
 361                         {"product-info", 0x10400, 0x00100},
 362                         {"partition-table", 0x10500, 0x00800},
 363                         {"soft-version", 0x11300, 0x00200},
 364                         {"support-list", 0x11500, 0x00100},
 365                         {"device-id", 0x11600, 0x00100},
 366                         {"profile", 0x11700, 0x03900},
 367                         {"default-config", 0x15000, 0x04000},
 368                         {"user-config", 0x19000, 0x04000},
 369                         {"os-image", 0x20000, 0x180000},
 370                         {"file-system", 0x1a0000, 0x648000},
 371                         {"certyficate", 0x7e8000, 0x08000},
 372                         {"radio", 0x7f0000, 0x10000},
 373                         {NULL, 0, 0}
 374                 },
 375
 376                 .first_sysupgrade_partition = "os-image",
 377                 .last_sysupgrade_partition = "file-system",
 378         },
 379
 380         /** Firmware layout for the C59v1 */
 381         {
 382                 .id     = "ARCHER-C59-V1",
 383                 .vendor = "",
 384                 .support_list =
 385                         "SupportList:\r\n"
 386                         "{product_name:Archer C59,product_ver:1.0.0,special_id:00000000}\r\n"
 387                         "{product_name:Archer C59,product_ver:1.0.0,special_id:45550000}\r\n"
 388                         "{product_name:Archer C59,product_ver:1.0.0,special_id:52550000}\r\n"
 389                         "{product_name:Archer C59,product_ver:1.0.0,special_id:55530000}\r\n",
 390                 .support_trail = '\x00',
 391                 .soft_ver = "soft_ver:1.0.0\n",
 392
 393                 .partitions = {
 394                         {"fs-uboot", 0x00000, 0x10000},
 395                         {"default-mac", 0x10000, 0x00200},
 396                         {"pin", 0x10200, 0x00200},
 397                         {"device-id", 0x10400, 0x00100},
 398                         {"product-info", 0x10500, 0x0fb00},
 399                         {"os-image", 0x20000, 0x180000},
 400                         {"file-system", 0x1a0000, 0xcb0000},
 401                         {"partition-table", 0xe50000, 0x10000},
 402                         {"soft-version", 0xe60000, 0x10000},
 403                         {"support-list", 0xe70000, 0x10000},
 404                         {"profile", 0xe80000, 0x10000},
 405                         {"default-config", 0xe90000, 0x10000},
 406                         {"user-config", 0xea0000, 0x40000},
 407                         {"usb-config", 0xee0000, 0x10000},
 408                         {"certificate", 0xef0000, 0x10000},
 409                         {"qos-db", 0xf00000, 0x40000},
 410                         {"log", 0xfe0000, 0x10000},
 411                         {"radio", 0xff0000, 0x10000},
 412                         {NULL, 0, 0}
 413                 },
 414
 415                 .first_sysupgrade_partition = "os-image",
 416                 .last_sysupgrade_partition = "file-system",
 417         },
 418
 419         /** Firmware layout for the C60v1 */
 420         {
 421                 .id     = "ARCHER-C60-V1",
 422                 .vendor = "",
 423                 .support_list =
 424                         "SupportList:\r\n"
 425                         "{product_name:Archer C60,product_ver:1.0.0,special_id:00000000}\r\n"
 426                         "{product_name:Archer C60,product_ver:1.0.0,special_id:45550000}\r\n"
 427                         "{product_name:Archer C60,product_ver:1.0.0,special_id:55530000}\r\n",
 428                 .support_trail = '\x00',
 429                 .soft_ver = "soft_ver:1.0.0\n",
 430
 431                 .partitions = {
 432                         {"fs-uboot", 0x00000, 0x10000},
 433                         {"default-mac", 0x10000, 0x00200},
 434                         {"pin", 0x10200, 0x00200},
 435                         {"product-info", 0x10400, 0x00100},
 436                         {"partition-table", 0x10500, 0x00800},
 437                         {"soft-version", 0x11300, 0x00200},
 438                         {"support-list", 0x11500, 0x00100},
 439                         {"device-id", 0x11600, 0x00100},
 440                         {"profile", 0x11700, 0x03900},
 441                         {"default-config", 0x15000, 0x04000},
 442                         {"user-config", 0x19000, 0x04000},
 443                         {"os-image", 0x20000, 0x180000},
 444                         {"file-system", 0x1a0000, 0x648000},
 445                         {"certyficate", 0x7e8000, 0x08000},
 446                         {"radio", 0x7f0000, 0x10000},
 447                         {NULL, 0, 0}
 448                 },
 449
 450                 .first_sysupgrade_partition = "os-image",
 451                 .last_sysupgrade_partition = "file-system",
 452         },
 453
 454         /** Firmware layout for the C60v2 */
 455         {
 456                 .id     = "ARCHER-C60-V2",
 457                 .vendor = "",
 458                 .support_list =
 459                         "SupportList:\r\n"
 460                         "{product_name:Archer C60,product_ver:2.0.0,special_id:42520000}\r\n"
 461                         "{product_name:Archer C60,product_ver:2.0.0,special_id:45550000}\r\n"
 462                         "{product_name:Archer C60,product_ver:2.0.0,special_id:55530000}\r\n",
 463                 .support_trail = '\x00',
 464                 .soft_ver = "soft_ver:2.0.0\n",
 465
 466                 .partitions = {
 467                         {"factory-boot", 0x00000, 0x1fb00},
 468                         {"default-mac", 0x1fb00, 0x00200},
 469                         {"pin", 0x1fd00, 0x00100},
 470                         {"product-info", 0x1fe00, 0x00100},
 471                         {"device-id", 0x1ff00, 0x00100},
 472                         {"fs-uboot", 0x20000, 0x10000},
 473                         {"os-image", 0x30000, 0x180000},
 474                         {"file-system", 0x1b0000, 0x620000},
 475                         {"soft-version", 0x7d9500, 0x00100},
 476                         {"support-list", 0x7d9600, 0x00100},
 477                         {"extra-para", 0x7d9700, 0x00100},
 478                         {"profile", 0x7d9800, 0x03000},
 479                         {"default-config", 0x7dc800, 0x03000},
 480                         {"partition-table", 0x7df800, 0x00800},
 481                         {"user-config", 0x7e0000, 0x0c000},
 482                         {"certificate", 0x7ec000, 0x04000},
 483                         {"radio", 0x7f0000, 0x10000},
 484                         {NULL, 0, 0}
 485                 },
 486
 487                 .first_sysupgrade_partition = "os-image",
 488                 .last_sysupgrade_partition = "file-system",
 489         },
 490
 491         /** Firmware layout for the C5 */
 492         {
 493                 .id = "ARCHER-C5-V2",
 494                 .vendor = "",
 495                 .support_list =
 496                         "SupportList:\r\n"
 497                         "{product_name:ArcherC5,product_ver:2.0.0,special_id:00000000}\r\n"
 498                         "{product_name:ArcherC5,product_ver:2.0.0,special_id:55530000}\r\n"
 499                         "{product_name:ArcherC5,product_ver:2.0.0,special_id:4A500000}\r\n", /* JP version */
 500                 .support_trail = '\x00',
 501                 .soft_ver = NULL,
 502
 503                 .partitions = {
 504                         {"fs-uboot", 0x00000, 0x40000},
 505                         {"os-image", 0x40000, 0x200000},
 506                         {"file-system", 0x240000, 0xc00000},
 507                         {"default-mac", 0xe40000, 0x00200},
 508                         {"pin", 0xe40200, 0x00200},
 509                         {"product-info", 0xe40400, 0x00200},
 510                         {"partition-table", 0xe50000, 0x10000},
 511                         {"soft-version", 0xe60000, 0x00200},
 512                         {"support-list", 0xe61000, 0x0f000},
 513                         {"profile", 0xe70000, 0x10000},
 514                         {"default-config", 0xe80000, 0x10000},
 515                         {"user-config", 0xe90000, 0x50000},
 516                         {"log", 0xee0000, 0x100000},
 517                         {"radio_bk", 0xfe0000, 0x10000},
 518                         {"radio", 0xff0000, 0x10000},
 519                         {NULL, 0, 0}
 520                 },
 521
 522                 .first_sysupgrade_partition = "os-image",
 523                 .last_sysupgrade_partition = "file-system"
 524         },
 525
 526         /** Firmware layout for the C7 */
 527         {
 528                 .id = "ARCHER-C7-V4",
 529                 .support_list =
 530                         "SupportList:\n"
 531                         "{product_name:Archer C7,product_ver:4.0.0,special_id:00000000}\n"
 532                         "{product_name:Archer C7,product_ver:4.0.0,special_id:41550000}\n"
 533                         "{product_name:Archer C7,product_ver:4.0.0,special_id:45550000}\n"
 534                         "{product_name:Archer C7,product_ver:4.0.0,special_id:4B520000}\n"
 535                         "{product_name:Archer C7,product_ver:4.0.0,special_id:42520000}\n"
 536                         "{product_name:Archer C7,product_ver:4.0.0,special_id:4A500000}\n"
 537                         "{product_name:Archer C7,product_ver:4.0.0,special_id:52550000}\n"
 538                         "{product_name:Archer C7,product_ver:4.0.0,special_id:54570000}\n"
 539                         "{product_name:Archer C7,product_ver:4.0.0,special_id:55530000}\n"
 540                         "{product_name:Archer C7,product_ver:4.0.0,special_id:43410000}\n",
 541                 .support_trail = '\x00',
 542                 .soft_ver = "soft_ver:1.0.0\n",
 543
 544                 /**
 545                     We use a bigger os-image partition than the stock images (and thus
 546                     smaller file-system), as our kernel doesn't fit in the stock firmware's
 547                     1MB os-image.
 548                 */
 549                 .partitions = {
 550                         {"factory-boot", 0x00000, 0x20000},
 551                         {"fs-uboot", 0x20000, 0x20000},
 552                         {"os-image", 0x40000, 0x180000},        /* Stock: base 0x40000 size 0x120000 */
 553                         {"file-system", 0x1c0000, 0xd40000},    /* Stock: base 0x160000 size 0xda0000 */
 554                         {"default-mac", 0xf00000, 0x00200},
 555                         {"pin", 0xf00200, 0x00200},
 556                         {"device-id", 0xf00400, 0x00100},
 557                         {"product-info", 0xf00500, 0x0fb00},
 558                         {"soft-version", 0xf10000, 0x00100},
 559                         {"extra-para", 0xf11000, 0x01000},
 560                         {"support-list", 0xf12000, 0x0a000},
 561                         {"profile", 0xf1c000, 0x04000},
 562                         {"default-config", 0xf20000, 0x10000},
 563                         {"user-config", 0xf30000, 0x40000},
 564                         {"qos-db", 0xf70000, 0x40000},
 565                         {"certificate", 0xfb0000, 0x10000},
 566                         {"partition-table", 0xfc0000, 0x10000},
 567                         {"log", 0xfd0000, 0x20000},
 568                         {"radio", 0xff0000, 0x10000},
 569                         {NULL, 0, 0}
 570                 },
 571
 572                 .first_sysupgrade_partition = "os-image",
 573                 .last_sysupgrade_partition = "file-system",
 574         },
 575
 576         /** Firmware layout for the C9 */
 577         {
 578                 .id = "ARCHERC9",
 579                 .vendor = "",
 580                 .support_list =
 581                         "SupportList:\n"
 582                         "{product_name:ArcherC9,"
 583                         "product_ver:1.0.0,"
 584                         "special_id:00000000}\n",
 585                 .support_trail = '\x00',
 586                 .soft_ver = NULL,
 587
 588                 .partitions = {
 589                         {"fs-uboot", 0x00000, 0x40000},
 590                         {"os-image", 0x40000, 0x200000},
 591                         {"file-system", 0x240000, 0xc00000},
 592                         {"default-mac", 0xe40000, 0x00200},
 593                         {"pin", 0xe40200, 0x00200},
 594                         {"product-info", 0xe40400, 0x00200},
 595                         {"partition-table", 0xe50000, 0x10000},
 596                         {"soft-version", 0xe60000, 0x00200},
 597                         {"support-list", 0xe61000, 0x0f000},
 598                         {"profile", 0xe70000, 0x10000},
 599                         {"default-config", 0xe80000, 0x10000},
 600                         {"user-config", 0xe90000, 0x50000},
 601                         {"log", 0xee0000, 0x100000},
 602                         {"radio_bk", 0xfe0000, 0x10000},
 603                         {"radio", 0xff0000, 0x10000},
 604                         {NULL, 0, 0}
 605                 },
 606
 607                 .first_sysupgrade_partition = "os-image",
 608                 .last_sysupgrade_partition = "file-system"
 609         },
 610
 611         /** Firmware layout for the EAP120 */
 612         {
 613                 .id     = "EAP120",
 614                 .vendor = "EAP120(TP-LINK|UN|N300-2):1.0\r\n",
 615                 .support_list =
 616                         "SupportList:\r\n"
 617                         "EAP120(TP-LINK|UN|N300-2):1.0\r\n",
 618                 .support_trail = '\xff',
 619                 .soft_ver = NULL,
 620
 621                 .partitions = {
 622                         {"fs-uboot", 0x00000, 0x20000},
 623                         {"partition-table", 0x20000, 0x02000},
 624                         {"default-mac", 0x30000, 0x00020},
 625                         {"support-list", 0x31000, 0x00100},
 626                         {"product-info", 0x31100, 0x00100},
 627                         {"soft-version", 0x32000, 0x00100},
 628                         {"os-image", 0x40000, 0x180000},
 629                         {"file-system", 0x1c0000, 0x600000},
 630                         {"user-config", 0x7c0000, 0x10000},
 631                         {"backup-config", 0x7d0000, 0x10000},
 632                         {"log", 0x7e0000, 0x10000},
 633                         {"radio", 0x7f0000, 0x10000},
 634                         {NULL, 0, 0}
 635                 },
 636
 637                 .first_sysupgrade_partition = "os-image",
 638                 .last_sysupgrade_partition = "file-system"
 639         },
 640
 641         /** Firmware layout for the TL-WA850RE v2 */
 642         {
 643                 .id     = "TLWA850REV2",
 644                 .vendor = "",
 645                 .support_list =
 646                         "SupportList:\n"
 647                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:55530000}\n"
 648                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:00000000}\n"
 649                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:55534100}\n"
 650                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:45550000}\n"
 651                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:4B520000}\n"
 652                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:42520000}\n"
 653                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:4A500000}\n"
 654                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:43410000}\n"
 655                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:41550000}\n"
 656                         "{product_name:TL-WA850RE,product_ver:2.0.0,special_id:52550000}\n",
 657                 .support_trail = '\x00',
 658                 .soft_ver = NULL,
 659
 660                 /**
 661                    576KB were moved from file-system to os-image
 662                    in comparison to the stock image
 663                 */
 664                 .partitions = {
 665                         {"fs-uboot", 0x00000, 0x20000},
 666                         {"os-image", 0x20000, 0x150000},
 667                         {"file-system", 0x170000, 0x240000},
 668                         {"partition-table", 0x3b0000, 0x02000},
 669                         {"default-mac", 0x3c0000, 0x00020},
 670                         {"pin", 0x3c0100, 0x00020},
 671                         {"product-info", 0x3c1000, 0x01000},
 672                         {"soft-version", 0x3c2000, 0x00100},
 673                         {"support-list", 0x3c3000, 0x01000},
 674                         {"profile", 0x3c4000, 0x08000},
 675                         {"user-config", 0x3d0000, 0x10000},
 676                         {"default-config", 0x3e0000, 0x10000},
 677                         {"radio", 0x3f0000, 0x10000},
 678                         {NULL, 0, 0}
 679                 },
 680
 681                 .first_sysupgrade_partition = "os-image",
 682                 .last_sysupgrade_partition = "file-system"
 683         },
 684
 685         /** Firmware layout for the TL-WA855RE v1 */
 686         {
 687                 .id     = "TLWA855REV1",
 688                 .vendor = "",
 689                 .support_list =
 690                         "SupportList:\n"
 691                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:00000000}\n"
 692                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:55530000}\n"
 693                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:45550000}\n"
 694                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:4B520000}\n"
 695                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:42520000}\n"
 696                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:4A500000}\n"
 697                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:43410000}\n"
 698                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:41550000}\n"
 699                         "{product_name:TL-WA855RE,product_ver:1.0.0,special_id:52550000}\n",
 700                 .support_trail = '\x00',
 701                 .soft_ver = NULL,
 702
 703                 .partitions = {
 704                         {"fs-uboot", 0x00000, 0x20000},
 705                         {"os-image", 0x20000, 0x150000},
 706                         {"file-system", 0x170000, 0x240000},
 707                         {"partition-table", 0x3b0000, 0x02000},
 708                         {"default-mac", 0x3c0000, 0x00020},
 709                         {"pin", 0x3c0100, 0x00020},
 710                         {"product-info", 0x3c1000, 0x01000},
 711                         {"soft-version", 0x3c2000, 0x00100},
 712                         {"support-list", 0x3c3000, 0x01000},
 713                         {"profile", 0x3c4000, 0x08000},
 714                         {"user-config", 0x3d0000, 0x10000},
 715                         {"default-config", 0x3e0000, 0x10000},
 716                         {"radio", 0x3f0000, 0x10000},
 717                         {NULL, 0, 0}
 718                 },
 719
 720                 .first_sysupgrade_partition = "os-image",
 721                 .last_sysupgrade_partition = "file-system"
 722         },
 723
 724         /** Firmware layout for the TL-WR1043 v5 */
 725         {
 726                 .id     = "TLWR1043NV5",
 727                 .vendor = "",
 728                 .support_list =
 729                         "SupportList:\n"
 730                         "{product_name:TL-WR1043N,product_ver:5.0.0,special_id:45550000}\n"
 731                         "{product_name:TL-WR1043N,product_ver:5.0.0,special_id:55530000}\n",
 732                 .support_trail = '\x00',
 733                 .soft_ver = "soft_ver:1.0.0\n",
 734                 .partitions = {
 735                         {"factory-boot", 0x00000, 0x20000},
 736                         {"fs-uboot", 0x20000, 0x20000},
 737                         {"os-image", 0x40000, 0x180000},
 738                         {"file-system", 0x1c0000, 0xd40000},
 739                         {"default-mac", 0xf00000, 0x00200},
 740                         {"pin", 0xf00200, 0x00200},
 741                         {"device-id", 0xf00400, 0x00100},
 742                         {"product-info", 0xf00500, 0x0fb00},
 743                         {"soft-version", 0xf10000, 0x01000},
 744                         {"extra-para", 0xf11000, 0x01000},
 745                         {"support-list", 0xf12000, 0x0a000},
 746                         {"profile", 0xf1c000, 0x04000},
 747                         {"default-config", 0xf20000, 0x10000},
 748                         {"user-config", 0xf30000, 0x40000},
 749                         {"qos-db", 0xf70000, 0x40000},
 750                         {"certificate", 0xfb0000, 0x10000},
 751                         {"partition-table", 0xfc0000, 0x10000},
 752                         {"log", 0xfd0000, 0x20000},
 753                         {"radio", 0xff0000, 0x10000},
 754                         {NULL, 0, 0}
 755                 },
 756                 .first_sysupgrade_partition = "os-image",
 757                 .last_sysupgrade_partition = "file-system"
 758         },
 759
 760         /** Firmware layout for the TL-WR1043 v4 */
 761         {
 762                 .id     = "TLWR1043NDV4",
 763                 .vendor = "",
 764                 .support_list =
 765                         "SupportList:\n"
 766                         "{product_name:TL-WR1043ND,product_ver:4.0.0,special_id:45550000}\n",
 767                 .support_trail = '\x00',
 768                 .soft_ver = NULL,
 769
 770                 /**
 771                     We use a bigger os-image partition than the stock images (and thus
 772                     smaller file-system), as our kernel doesn't fit in the stock firmware's
 773                     1MB os-image.
 774                 */
 775                 .partitions = {
 776                         {"fs-uboot", 0x00000, 0x20000},
 777                         {"os-image", 0x20000, 0x180000},
 778                         {"file-system", 0x1a0000, 0xdb0000},
 779                         {"default-mac", 0xf50000, 0x00200},
 780                         {"pin", 0xf50200, 0x00200},
 781                         {"product-info", 0xf50400, 0x0fc00},
 782                         {"soft-version", 0xf60000, 0x0b000},
 783                         {"support-list", 0xf6b000, 0x04000},
 784                         {"profile", 0xf70000, 0x04000},
 785                         {"default-config", 0xf74000, 0x0b000},
 786                         {"user-config", 0xf80000, 0x40000},
 787                         {"partition-table", 0xfc0000, 0x10000},
 788                         {"log", 0xfd0000, 0x20000},
 789                         {"radio", 0xff0000, 0x10000},
 790                         {NULL, 0, 0}
 791                 },
 792
 793                 .first_sysupgrade_partition = "os-image",
 794                 .last_sysupgrade_partition = "file-system"
 795         },
 796
 797         /** Firmware layout for the TL-WR902AC v1 */
 798         {
 799                 .id     = "TL-WR902AC-V1",
 800                 .vendor = "",
 801                 .support_list =
 802                         "SupportList:\n"
 803                         "{product_name:TL-WR902AC,product_ver:1.0.0,special_id:45550000}\n"
 804                         "{product_name:TL-WR902AC,product_ver:1.0.0,special_id:55530000}\n",
 805                 .support_trail = '\x00',
 806                 .soft_ver = NULL,
 807
 808                 /**
 809                    384KB were moved from file-system to os-image
 810                    in comparison to the stock image
 811                 */
 812                 .partitions = {
 813                         {"fs-uboot", 0x00000, 0x20000},
 814                         {"os-image", 0x20000, 0x180000},
 815                         {"file-system", 0x1a0000, 0x5b0000},
 816                         {"default-mac", 0x750000, 0x00200},
 817                         {"pin", 0x750200, 0x00200},
 818                         {"product-info", 0x750400, 0x0fc00},
 819                         {"soft-version", 0x760000, 0x0b000},
 820                         {"support-list", 0x76b000, 0x04000},
 821                         {"profile", 0x770000, 0x04000},
 822                         {"default-config", 0x774000, 0x0b000},
 823                         {"user-config", 0x780000, 0x40000},
 824                         {"partition-table", 0x7c0000, 0x10000},
 825                         {"log", 0x7d0000, 0x20000},
 826                         {"radio", 0x7f0000, 0x10000},
 827                         {NULL, 0, 0}
 828                 },
 829
 830                 .first_sysupgrade_partition = "os-image",
 831                 .last_sysupgrade_partition = "file-system",
 832         },
 833
 834         /** Firmware layout for the TL-WR942N V1 */
 835         {
 836                 .id     = "TLWR942NV1",
 837                 .vendor = "",
 838                 .support_list =
 839                         "SupportList:\r\n"
 840                         "{product_name:TL-WR942N,product_ver:1.0.0,special_id:00000000}\r\n"
 841                         "{product_name:TL-WR942N,product_ver:1.0.0,special_id:52550000}\r\n",
 842                 .support_trail = '\x00',
 843                 .soft_ver = NULL,
 844
 845                 .partitions = {
 846                         {"fs-uboot", 0x00000, 0x20000},
 847                         {"os-image", 0x20000, 0x180000},
 848                         {"file-system", 0x1a0000, 0xca0000},
 849                         {"default-mac", 0xe40000, 0x00200},
 850                         {"pin", 0xe40200, 0x00200},
 851                         {"product-info", 0xe40400, 0x0fc00},
 852                         {"partition-table", 0xe50000, 0x10000},
 853                         {"soft-version", 0xe60000, 0x10000},
 854                         {"support-list", 0xe70000, 0x10000},
 855                         {"profile", 0xe80000, 0x10000},
 856                         {"default-config", 0xe90000, 0x10000},
 857                         {"user-config", 0xea0000, 0x40000},
 858                         {"qos-db", 0xee0000, 0x40000},
 859                         {"certificate", 0xf20000, 0x10000},
 860                         {"usb-config", 0xfb0000, 0x10000},
 861                         {"log", 0xfc0000, 0x20000},
 862                         {"radio-bk", 0xfe0000, 0x10000},
 863                         {"radio", 0xff0000, 0x10000},
 864                         {NULL, 0, 0}
 865                 },
 866
 867                 .first_sysupgrade_partition = "os-image",
 868                 .last_sysupgrade_partition = "file-system",
 869         },
 870
 871         /** Firmware layout for the RE350 v1 */
 872         {
 873                 .id = "RE350-V1",
 874                 .vendor = "",
 875                 .support_list =
 876                         "SupportList:\n"
 877                         "{product_name:RE350,product_ver:1.0.0,special_id:45550000}\n"
 878                         "{product_name:RE350,product_ver:1.0.0,special_id:00000000}\n"
 879                         "{product_name:RE350,product_ver:1.0.0,special_id:41550000}\n"
 880                         "{product_name:RE350,product_ver:1.0.0,special_id:55530000}\n"
 881                         "{product_name:RE350,product_ver:1.0.0,special_id:43410000}\n"
 882                         "{product_name:RE350,product_ver:1.0.0,special_id:4b520000}\n"
 883                         "{product_name:RE350,product_ver:1.0.0,special_id:4a500000}\n",
 884                 .support_trail = '\x00',
 885                 .soft_ver = NULL,
 886
 887                 /**
 888                         The original os-image partition is too small,
 889                         so we enlarge it to 1.6M
 890                 */
 891                 .partitions = {
 892                         {"fs-uboot", 0x00000, 0x20000},
 893                         {"os-image", 0x20000, 0x1a0000},
 894                         {"file-system", 0x1c0000, 0x440000},
 895                         {"partition-table", 0x600000, 0x02000},
 896                         {"default-mac", 0x610000, 0x00020},
 897                         {"pin", 0x610100, 0x00020},
 898                         {"product-info", 0x611100, 0x01000},
 899                         {"soft-version", 0x620000, 0x01000},
 900                         {"support-list", 0x621000, 0x01000},
 901                         {"profile", 0x622000, 0x08000},
 902                         {"user-config", 0x630000, 0x10000},
 903                         {"default-config", 0x640000, 0x10000},
 904                         {"radio", 0x7f0000, 0x10000},
 905                         {NULL, 0, 0}
 906                 },
 907
 908                 .first_sysupgrade_partition = "os-image",
 909                 .last_sysupgrade_partition = "file-system"
 910         },
 911
 912         /** Firmware layout for the RE355 */
 913         {
 914                 .id = "RE355",
 915                 .vendor = "",
 916                 .support_list =
 917                         "SupportList:\r\n"
 918                         "{product_name:RE355,product_ver:1.0.0,special_id:00000000}\r\n"
 919                         "{product_name:RE355,product_ver:1.0.0,special_id:55530000}\r\n"
 920                         "{product_name:RE355,product_ver:1.0.0,special_id:45550000}\r\n"
 921                         "{product_name:RE355,product_ver:1.0.0,special_id:4A500000}\r\n"
 922                         "{product_name:RE355,product_ver:1.0.0,special_id:43410000}\r\n"
 923                         "{product_name:RE355,product_ver:1.0.0,special_id:41550000}\r\n"
 924                         "{product_name:RE355,product_ver:1.0.0,special_id:4B520000}\r\n"
 925                         "{product_name:RE355,product_ver:1.0.0,special_id:55534100}\r\n",
 926                 .support_trail = '\x00',
 927                 .soft_ver = NULL,
 928
 929                 /**
 930                    The flash partition table for RE355;
 931                    it is almost the same as the one used by the stock images,
 932                    576KB were moved from file-system to os-image.
 933                 */
 934                 .partitions = {
 935                         {"fs-uboot", 0x00000, 0x20000},
 936                         {"os-image", 0x20000, 0x180000},
 937                         {"file-system", 0x1a0000, 0x460000},
 938                         {"partition-table", 0x600000, 0x02000},
 939                         {"default-mac", 0x610000, 0x00020},
 940                         {"pin", 0x610100, 0x00020},
 941                         {"product-info", 0x611100, 0x01000},
 942                         {"soft-version", 0x620000, 0x01000},
 943                         {"support-list", 0x621000, 0x01000},
 944                         {"profile", 0x622000, 0x08000},
 945                         {"user-config", 0x630000, 0x10000},
 946                         {"default-config", 0x640000, 0x10000},
 947                         {"radio", 0x7f0000, 0x10000},
 948                         {NULL, 0, 0}
 949                 },
 950
 951                 .first_sysupgrade_partition = "os-image",
 952                 .last_sysupgrade_partition = "file-system"
 953         },
 954
 955         /** Firmware layout for the RE450 */
 956         {
 957                 .id = "RE450",
 958                 .vendor = "",
 959                 .support_list =
 960                         "SupportList:\r\n"
 961                         "{product_name:RE450,product_ver:1.0.0,special_id:00000000}\r\n"
 962                         "{product_name:RE450,product_ver:1.0.0,special_id:55530000}\r\n"
 963                         "{product_name:RE450,product_ver:1.0.0,special_id:45550000}\r\n"
 964                         "{product_name:RE450,product_ver:1.0.0,special_id:4A500000}\r\n"
 965                         "{product_name:RE450,product_ver:1.0.0,special_id:43410000}\r\n"
 966                         "{product_name:RE450,product_ver:1.0.0,special_id:41550000}\r\n"
 967                         "{product_name:RE450,product_ver:1.0.0,special_id:4B520000}\r\n"
 968                         "{product_name:RE450,product_ver:1.0.0,special_id:55534100}\r\n",
 969                 .support_trail = '\x00',
 970                 .soft_ver = NULL,
 971
 972                 /**
 973                    The flash partition table for RE450;
 974                    it is almost the same as the one used by the stock images,
 975                    576KB were moved from file-system to os-image.
 976                 */
 977                 .partitions = {
 978                         {"fs-uboot", 0x00000, 0x20000},
 979                         {"os-image", 0x20000, 0x180000},
 980                         {"file-system", 0x1a0000, 0x460000},
 981                         {"partition-table", 0x600000, 0x02000},
 982                         {"default-mac", 0x610000, 0x00020},
 983                         {"pin", 0x610100, 0x00020},
 984                         {"product-info", 0x611100, 0x01000},
 985                         {"soft-version", 0x620000, 0x01000},
 986                         {"support-list", 0x621000, 0x01000},
 987                         {"profile", 0x622000, 0x08000},
 988                         {"user-config", 0x630000, 0x10000},
 989                         {"default-config", 0x640000, 0x10000},
 990                         {"radio", 0x7f0000, 0x10000},
 991                         {NULL, 0, 0}
 992                 },
 993
 994                 .first_sysupgrade_partition = "os-image",
 995                 .last_sysupgrade_partition = "file-system"
 996         },
 997
 998         {}
 999 };
1000
1001 #define error(_ret, _errno, _str, ...)                          \
1002         do {                                                    \
1003                 fprintf(stderr, _str ": %s\n", ## __VA_ARGS__,  \
1004                         strerror(_errno));                      \
1005                 if (_ret)                                       \
1006                         exit(_ret);                             \
1007         } while (0)
1008
1009
1010 /** Stores a uint32 as big endian */
1011 static inline void put32(uint8_t *buf, uint32_t val) {
1012         buf[0] = val >> 24;
1013         buf[1] = val >> 16;
1014         buf[2] = val >> 8;
1015         buf[3] = val;
1016 }
1017
1018 /** Allocates a new image partition */
1019 static struct image_partition_entry alloc_image_partition(const char *name, size_t len) {
1020         struct image_partition_entry entry = {name, len, malloc(len)};
1021         if (!entry.data)
1022                 error(1, errno, "malloc");
1023
1024         return entry;
1025 }
1026
1027 /** Frees an image partition */
1028 static void free_image_partition(struct image_partition_entry entry) {
1029         free(entry.data);
1030 }
1031
1032 static time_t source_date_epoch = -1;
1033 static void set_source_date_epoch() {
1034         char *env = getenv("SOURCE_DATE_EPOCH");
1035         char *endptr = env;
1036         errno = 0;
1037         if (env && *env) {
1038                 source_date_epoch = strtoull(env, &endptr, 10);
1039                 if (errno || (endptr && *endptr != '\0')) {
1040                         fprintf(stderr, "Invalid SOURCE_DATE_EPOCH");
1041                         exit(1);
1042                 }
1043         }
1044 }
1045
1046 /** Generates the partition-table partition */
1047 static struct image_partition_entry make_partition_table(const struct flash_partition_entry *p) {
1048         struct image_partition_entry entry = alloc_image_partition("partition-table", 0x800);
1049
1050         char *s = (char *)entry.data, *end = (char *)(s+entry.size);
1051
1052         *(s++) = 0x00;
1053         *(s++) = 0x04;
1054         *(s++) = 0x00;
1055         *(s++) = 0x00;
1056
1057         size_t i;
1058         for (i = 0; p[i].name; i++) {
1059                 size_t len = end-s;
1060                 size_t w = snprintf(s, len, "partition %s base 0x%05x size 0x%05x\n", p[i].name, p[i].base, p[i].size);
1061
1062                 if (w > len-1)
1063                         error(1, 0, "flash partition table overflow?");
1064
1065                 s += w;
1066         }
1067
1068         s++;
1069
1070         memset(s, 0xff, end-s);
1071
1072         return entry;
1073 }
1074
1075
1076 /** Generates a binary-coded decimal representation of an integer in the range [0, 99] */
1077 static inline uint8_t bcd(uint8_t v) {
1078         return 0x10 * (v/10) + v%10;
1079 }
1080
1081
1082 /** Generates the soft-version partition */
1083 static struct image_partition_entry make_soft_version(uint32_t rev) {
1084         struct image_partition_entry entry = alloc_image_partition("soft-version", sizeof(struct soft_version));
1085         struct soft_version *s = (struct soft_version *)entry.data;
1086
1087         time_t t;
1088
1089         if (source_date_epoch != -1)
1090                 t = source_date_epoch;
1091         else if (time(&t) == (time_t)(-1))
1092                 error(1, errno, "time");
1093
1094         struct tm *tm = localtime(&t);
1095
1096         s->magic = htonl(0x0000000c);
1097         s->zero = 0;
1098         s->pad1 = 0xff;
1099
1100         s->version_major = 0;
1101         s->version_minor = 0;
1102         s->version_patch = 0;
1103
1104         s->year_hi = bcd((1900+tm->tm_year)/100);
1105         s->year_lo = bcd(tm->tm_year%100);
1106         s->month = bcd(tm->tm_mon+1);
1107         s->day = bcd(tm->tm_mday);
1108         s->rev = htonl(rev);
1109
1110         s->pad2 = 0xff;
1111
1112         return entry;
1113 }
1114
1115 static struct image_partition_entry make_soft_version_from_string(const char *soft_ver) {
1116         /** String length _including_ the terminating zero byte */
1117         uint32_t ver_len = strlen(soft_ver) + 1;
1118         /** Partition contains 64 bit header, the version string, and one additional null byte */
1119         size_t partition_len = 2*sizeof(uint32_t) + ver_len + 1;
1120         struct image_partition_entry entry = alloc_image_partition("soft-version", partition_len);
1121
1122         uint32_t *len = (uint32_t *)entry.data;
1123         len[0] = htonl(ver_len);
1124         len[1] = 0;
1125         memcpy(&len[2], soft_ver, ver_len);
1126
1127         entry.data[partition_len - 1] = 0;
1128
1129         return entry;
1130 }
1131
1132 /** Generates the support-list partition */
1133 static struct image_partition_entry make_support_list(const struct device_info *info) {
1134         size_t len = strlen(info->support_list);
1135         struct image_partition_entry entry = alloc_image_partition("support-list", len + 9);
1136
1137         put32(entry.data, len);
1138         memset(entry.data+4, 0, 4);
1139         memcpy(entry.data+8, info->support_list, len);
1140         entry.data[len+8] = info->support_trail;
1141
1142         return entry;
1143 }
1144
1145 /** Creates a new image partition with an arbitrary name from a file */
1146 static struct image_partition_entry read_file(const char *part_name, const char *filename, bool add_jffs2_eof) {
1147         struct stat statbuf;
1148
1149         if (stat(filename, &statbuf) < 0)
1150                 error(1, errno, "unable to stat file `%s'", filename);
1151
1152         size_t len = statbuf.st_size;
1153
1154         if (add_jffs2_eof)
1155                 len = ALIGN(len, 0x10000) + sizeof(jffs2_eof_mark);
1156
1157         struct image_partition_entry entry = alloc_image_partition(part_name, len);
1158
1159         FILE *file = fopen(filename, "rb");
1160         if (!file)
1161                 error(1, errno, "unable to open file `%s'", filename);
1162
1163         if (fread(entry.data, statbuf.st_size, 1, file) != 1)
1164                 error(1, errno, "unable to read file `%s'", filename);
1165
1166         if (add_jffs2_eof) {
1167                 uint8_t *eof = entry.data + statbuf.st_size, *end = entry.data+entry.size;
1168
1169                 memset(eof, 0xff, end - eof - sizeof(jffs2_eof_mark));
1170                 memcpy(end - sizeof(jffs2_eof_mark), jffs2_eof_mark, sizeof(jffs2_eof_mark));
1171         }
1172
1173         fclose(file);
1174
1175         return entry;
1176 }
1177
1178 /** Creates a new image partition from arbitrary data */
1179 static struct image_partition_entry put_data(const char *part_name, const char *datain, size_t len) {
1180
1181         struct image_partition_entry entry = alloc_image_partition(part_name, len);
1182
1183         memcpy(entry.data, datain, len);
1184
1185         return entry;
1186 }
1187
1188 /**
1189    Copies a list of image partitions into an image buffer and generates the image partition table while doing so
1190
1191    Example image partition table:
1192
1193      fwup-ptn partition-table base 0x00800 size 0x00800
1194      fwup-ptn os-image base 0x01000 size 0x113b45
1195      fwup-ptn file-system base 0x114b45 size 0x1d0004
1196      fwup-ptn support-list base 0x2e4b49 size 0x000d1
1197
1198    Each line of the partition table is terminated with the bytes 09 0d 0a ("\t\r\n"),
1199    the end of the partition table is marked with a zero byte.
1200
1201    The firmware image must contain at least the partition-table and support-list partitions
1202    to be accepted. There aren't any alignment constraints for the image partitions.
1203
1204    The partition-table partition contains the actual flash layout; partitions
1205    from the image partition table are mapped to the corresponding flash partitions during
1206    the firmware upgrade. The support-list partition contains a list of devices supported by
1207    the firmware image.
1208
1209    The base offsets in the firmware partition table are relative to the end
1210    of the vendor information block, so the partition-table partition will
1211    actually start at offset 0x1814 of the image.
1212
1213    I think partition-table must be the first partition in the firmware image.
1214 */
1215 static void put_partitions(uint8_t *buffer, const struct flash_partition_entry *flash_parts, const struct image_partition_entry *parts) {
1216         size_t i, j;
1217         char *image_pt = (char *)buffer, *end = image_pt + 0x800;
1218
1219         size_t base = 0x800;
1220         for (i = 0; parts[i].name; i++) {
1221                 for (j = 0; flash_parts[j].name; j++) {
1222                         if (!strcmp(flash_parts[j].name, parts[i].name)) {
1223                                 if (parts[i].size > flash_parts[j].size)
1224                                         error(1, 0, "%s partition too big (more than %u bytes)", flash_parts[j].name, (unsigned)flash_parts[j].size);
1225                                 break;
1226                         }
1227                 }
1228
1229                 assert(flash_parts[j].name);
1230
1231                 memcpy(buffer + base, parts[i].data, parts[i].size);
1232
1233                 size_t len = end-image_pt;
1234                 size_t w = snprintf(image_pt, len, "fwup-ptn %s base 0x%05x size 0x%05x\t\r\n", parts[i].name, (unsigned)base, (unsigned)parts[i].size);
1235
1236                 if (w > len-1)
1237                         error(1, 0, "image partition table overflow?");
1238
1239                 image_pt += w;
1240
1241                 base += parts[i].size;
1242         }
1243 }
1244
1245 /** Generates and writes the image MD5 checksum */
1246 static void put_md5(uint8_t *md5, uint8_t *buffer, unsigned int len) {
1247         MD5_CTX ctx;
1248
1249         MD5_Init(&ctx);
1250         MD5_Update(&ctx, md5_salt, (unsigned int)sizeof(md5_salt));
1251         MD5_Update(&ctx, buffer, len);
1252         MD5_Final(md5, &ctx);
1253 }
1254
1255
1256 /**
1257    Generates the firmware image in factory format
1258
1259    Image format:
1260
1261      Bytes (hex)  Usage
1262      -----------  -----
1263      0000-0003    Image size (4 bytes, big endian)
1264      0004-0013    MD5 hash (hash of a 16 byte salt and the image data starting with byte 0x14)
1265      0014-0017    Vendor information length (without padding) (4 bytes, big endian)
1266      0018-1013    Vendor information (4092 bytes, padded with 0xff; there seem to be older
1267                   (VxWorks-based) TP-LINK devices which use a smaller vendor information block)
1268      1014-1813    Image partition table (2048 bytes, padded with 0xff)
1269      1814-xxxx    Firmware partitions
1270 */
1271 static void * generate_factory_image(const struct device_info *info, const struct image_partition_entry *parts, size_t *len) {
1272         *len = 0x1814;
1273
1274         size_t i;
1275         for (i = 0; parts[i].name; i++)
1276                 *len += parts[i].size;
1277
1278         uint8_t *image = malloc(*len);
1279         if (!image)
1280                 error(1, errno, "malloc");
1281
1282         memset(image, 0xff, *len);
1283         put32(image, *len);
1284
1285         if (info->vendor) {
1286                 size_t vendor_len = strlen(info->vendor);
1287                 put32(image+0x14, vendor_len);
1288                 memcpy(image+0x18, info->vendor, vendor_len);
1289         }
1290
1291         put_partitions(image + 0x1014, info->partitions, parts);
1292         put_md5(image+0x04, image+0x14, *len-0x14);
1293
1294         return image;
1295 }
1296
1297 /**
1298    Generates the firmware image in sysupgrade format
1299
1300    This makes some assumptions about the provided flash and image partition tables and
1301    should be generalized when TP-LINK starts building its safeloader into hardware with
1302    different flash layouts.
1303 */
1304 static void * generate_sysupgrade_image(const struct device_info *info, const struct image_partition_entry *image_parts, size_t *len) {
1305         size_t i, j;
1306         size_t flash_first_partition_index = 0;
1307         size_t flash_last_partition_index = 0;
1308         const struct flash_partition_entry *flash_first_partition = NULL;
1309         const struct flash_partition_entry *flash_last_partition = NULL;
1310         const struct image_partition_entry *image_last_partition = NULL;
1311
1312         /** Find first and last partitions */
1313         for (i = 0; info->partitions[i].name; i++) {
1314                 if (!strcmp(info->partitions[i].name, info->first_sysupgrade_partition)) {
1315                         flash_first_partition = &info->partitions[i];
1316                         flash_first_partition_index = i;
1317                 } else if (!strcmp(info->partitions[i].name, info->last_sysupgrade_partition)) {
1318                         flash_last_partition = &info->partitions[i];
1319                         flash_last_partition_index = i;
1320                 }
1321         }
1322
1323         assert(flash_first_partition && flash_last_partition);
1324         assert(flash_first_partition_index < flash_last_partition_index);
1325
1326         /** Find last partition from image to calculate needed size */
1327         for (i = 0; image_parts[i].name; i++) {
1328                 if (!strcmp(image_parts[i].name, info->last_sysupgrade_partition)) {
1329                         image_last_partition = &image_parts[i];
1330                         break;
1331                 }
1332         }
1333
1334         assert(image_last_partition);
1335
1336         *len = flash_last_partition->base - flash_first_partition->base + image_last_partition->size;
1337
1338         uint8_t *image = malloc(*len);
1339         if (!image)
1340                 error(1, errno, "malloc");
1341
1342         memset(image, 0xff, *len);
1343
1344         for (i = flash_first_partition_index; i <= flash_last_partition_index; i++) {
1345                 for (j = 0; image_parts[j].name; j++) {
1346                         if (!strcmp(info->partitions[i].name, image_parts[j].name)) {
1347                                 if (image_parts[j].size > info->partitions[i].size)
1348                                         error(1, 0, "%s partition too big (more than %u bytes)", info->partitions[i].name, (unsigned)info->partitions[i].size);
1349                                 memcpy(image + info->partitions[i].base - flash_first_partition->base, image_parts[j].data, image_parts[j].size);
1350                                 break;
1351                         }
1352
1353                         assert(image_parts[j].name);
1354                 }
1355         }
1356
1357         return image;
1358 }
1359
1360 /** Generates an image according to a given layout and writes it to a file */
1361 static void build_image(const char *output,
1362                 const char *kernel_image,
1363                 const char *rootfs_image,
1364                 uint32_t rev,
1365                 bool add_jffs2_eof,
1366                 bool sysupgrade,
1367                 const struct device_info *info) {
1368
1369         struct image_partition_entry parts[7] = {};
1370
1371         parts[0] = make_partition_table(info->partitions);
1372         if (info->soft_ver)
1373                 parts[1] = make_soft_version_from_string(info->soft_ver);
1374         else
1375                 parts[1] = make_soft_version(rev);
1376
1377         parts[2] = make_support_list(info);
1378         parts[3] = read_file("os-image", kernel_image, false);
1379         parts[4] = read_file("file-system", rootfs_image, add_jffs2_eof);
1380
1381         /* Some devices need the extra-para partition to accept the firmware */
1382         if (strcasecmp(info->id, "ARCHER-C25-V1") == 0 ||
1383             strcasecmp(info->id, "ARCHER-C60-V2") == 0 ||
1384             strcasecmp(info->id, "TLWR1043NV5") == 0) {
1385                 const char mdat[11] = {0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00};
1386                 parts[5] = put_data("extra-para", mdat, 11);
1387         } else if (strcasecmp(info->id, "ARCHER-C7-V4") == 0) {
1388                 const char mdat[11] = {0x01, 0x00, 0x00, 0x02, 0x00, 0x00, 0xca, 0x00, 0x01, 0x00, 0x00};
1389                 parts[5] = put_data("extra-para", mdat, 11);
1390         }
1391
1392         size_t len;
1393         void *image;
1394         if (sysupgrade)
1395                 image = generate_sysupgrade_image(info, parts, &len);
1396         else
1397                 image = generate_factory_image(info, parts, &len);
1398
1399         FILE *file = fopen(output, "wb");
1400         if (!file)
1401                 error(1, errno, "unable to open output file");
1402
1403         if (fwrite(image, len, 1, file) != 1)
1404                 error(1, 0, "unable to write output file");
1405
1406         fclose(file);
1407
1408         free(image);
1409
1410         size_t i;
1411         for (i = 0; parts[i].name; i++)
1412                 free_image_partition(parts[i]);
1413 }
1414
1415 /** Usage output */
1416 static void usage(const char *argv0) {
1417         fprintf(stderr,
1418                 "Usage: %s [OPTIONS...]\n"
1419                 "\n"
1420                 "Options:\n"
1421                 "  -h              show this help\n"
1422                 "\n"
1423                 "Create a new image:\n"
1424                 "  -B <board>      create image for the board specified with <board>\n"
1425                 "  -k <file>       read kernel image from the file <file>\n"
1426                 "  -r <file>       read rootfs image from the file <file>\n"
1427                 "  -o <file>       write output to the file <file>\n"
1428                 "  -V <rev>        sets the revision number to <rev>\n"
1429                 "  -j              add jffs2 end-of-filesystem markers\n"
1430                 "  -S              create sysupgrade instead of factory image\n"
1431                 "Extract an old image:\n"
1432                 "  -x <file>       extract all oem firmware partition\n"
1433                 "  -d <dir>        destination to extract the firmware partition\n"
1434                 "  -z <file>       convert an oem firmware into a sysupgade file. Use -o for output file\n",
1435                 argv0
1436         );
1437 };
1438
1439
1440 static const struct device_info *find_board(const char *id)
1441 {
1442         struct device_info *board = NULL;
1443
1444         for (board = boards; board->id != NULL; board++)
1445                 if (strcasecmp(id, board->id) == 0)
1446                         return board;
1447
1448         return NULL;
1449 }
1450
1451 static int add_flash_partition(
1452                 struct flash_partition_entry *part_list,
1453                 size_t max_entries,
1454                 const char *name,
1455                 unsigned long base,
1456                 unsigned long size)
1457 {
1458         int ptr;
1459         /* check if the list has a free entry */
1460         for (ptr = 0; ptr < max_entries; ptr++, part_list++) {
1461                 if (part_list->name == NULL &&
1462                                 part_list->base == 0 &&
1463                                 part_list->size == 0)
1464                         break;
1465         }
1466
1467         if (ptr == max_entries) {
1468                 error(1, 0, "No free flash part entry available.");
1469         }
1470
1471         part_list->name = calloc(1, strlen(name) + 1);
1472         memcpy((char *)part_list->name, name, strlen(name));
1473         part_list->base = base;
1474         part_list->size = size;
1475
1476         return 0;
1477 }
1478
1479 /** read the partition table into struct flash_partition_entry */
1480 static int read_partition_table(
1481                 FILE *file, long offset,
1482                 struct flash_partition_entry *entries, size_t max_entries,
1483                 int type)
1484 {
1485         char buf[2048];
1486         char *ptr, *end;
1487         const char *parthdr = NULL;
1488         const char *fwuphdr = "fwup-ptn";
1489         const char *flashhdr = "partition";
1490
1491         /* TODO: search for the partition table */
1492
1493         switch(type) {
1494                 case 0:
1495                         parthdr = fwuphdr;
1496                         break;
1497                 case 1:
1498                         parthdr = flashhdr;
1499                         break;
1500                 default:
1501                         error(1, 0, "Invalid partition table");
1502         }
1503
1504         if (fseek(file, offset, SEEK_SET) < 0)
1505                 error(1, errno, "Can not seek in the firmware");
1506
1507         if (fread(buf, 1, 2048, file) < 0)
1508                 error(1, errno, "Can not read fwup-ptn from the firmware");
1509
1510         buf[2047] = '\0';
1511
1512         /* look for the partition header */
1513         if (memcmp(buf, parthdr, strlen(parthdr)) != 0) {
1514                 fprintf(stderr, "DEBUG: can not find fwuphdr\n");
1515                 return 1;
1516         }
1517
1518         ptr = buf;
1519         end = buf + sizeof(buf);
1520         while ((ptr + strlen(parthdr)) < end &&
1521                         memcmp(ptr, parthdr, strlen(parthdr)) == 0) {
1522                 char *end_part;
1523                 char *end_element;
1524
1525                 char name[32] = { 0 };
1526                 int name_len = 0;
1527                 unsigned long base = 0;
1528                 unsigned long size = 0;
1529
1530                 end_part = memchr(ptr, '\n', (end - ptr));
1531                 if (end_part == NULL) {
1532                         /* in theory this should never happen, because a partition always ends with 0x09, 0x0D, 0x0A */
1533                         break;
1534                 }
1535
1536                 for (int i = 0; i <= 4; i++) {
1537                         if (end_part <= ptr)
1538                                 break;
1539
1540                         end_element = memchr(ptr, 0x20, (end_part - ptr));
1541                         if (end_element == NULL) {
1542                                 error(1, errno, "Ignoring the rest of the partition entries.");
1543                                 break;
1544                         }
1545
1546                         switch (i) {
1547                                 /* partition header */
1548                                 case 0:
1549                                         ptr = end_element + 1;
1550                                         continue;
1551                                 /* name */
1552                                 case 1:
1553                                         name_len = (end_element - ptr) > 31 ? 31 : (end_element - ptr);
1554                                         strncpy(name, ptr, name_len);
1555                                         name[name_len] = '\0';
1556                                         ptr = end_element + 1;
1557                                         continue;
1558
1559                                 /* string "base" */
1560                                 case 2:
1561                                         ptr = end_element + 1;
1562                                         continue;
1563
1564                                 /* actual base */
1565                                 case 3:
1566                                         base = strtoul(ptr, NULL, 16);
1567                                         ptr = end_element + 1;
1568                                         continue;
1569
1570                                 /* string "size" */
1571                                 case 4:
1572                                         ptr = end_element + 1;
1573                                         /* actual size. The last element doesn't have a sepeartor */
1574                                         size = strtoul(ptr, NULL, 16);
1575                                         /* the part ends with 0x09, 0x0d, 0x0a */
1576                                         ptr = end_part + 1;
1577                                         add_flash_partition(entries, max_entries, name, base, size);
1578                                         continue;
1579                         }
1580                 }
1581         }
1582
1583         return 0;
1584 }
1585
1586 static void write_partition(
1587                 FILE *input_file,
1588                 size_t firmware_offset,
1589                 struct flash_partition_entry *entry,
1590                 FILE *output_file)
1591 {
1592         char buf[4096];
1593         size_t offset;
1594
1595         fseek(input_file, entry->base + firmware_offset, SEEK_SET);
1596
1597         for (offset = 0; sizeof(buf) + offset <= entry->size; offset += sizeof(buf)) {
1598                 if (fread(buf, sizeof(buf), 1, input_file) < 0)
1599                         error(1, errno, "Can not read partition from input_file");
1600
1601                 if (fwrite(buf, sizeof(buf), 1, output_file) < 0)
1602                         error(1, errno, "Can not write partition to output_file");
1603         }
1604         /* write last chunk smaller than buffer */
1605         if (offset < entry->size) {
1606                 offset = entry->size - offset;
1607                 if (fread(buf, offset, 1, input_file) < 0)
1608                         error(1, errno, "Can not read partition from input_file");
1609                 if (fwrite(buf, offset, 1, output_file) < 0)
1610                         error(1, errno, "Can not write partition to output_file");
1611         }
1612 }
1613
1614 static int extract_firmware_partition(FILE *input_file, size_t firmware_offset, struct flash_partition_entry *entry, const char *output_directory)
1615 {
1616         FILE *output_file;
1617         char output[PATH_MAX];
1618
1619         snprintf(output, PATH_MAX, "%s/%s", output_directory, entry->name);
1620         output_file = fopen(output, "wb+");
1621         if (output_file == NULL) {
1622                 error(1, errno, "Can not open output file %s", output);
1623         }
1624
1625         write_partition(input_file, firmware_offset, entry, output_file);
1626
1627         fclose(output_file);
1628
1629         return 0;
1630 }
1631
1632 /** extract all partitions from the firmware file */
1633 static int extract_firmware(const char *input, const char *output_directory)
1634 {
1635         struct flash_partition_entry entries[16] = { 0 };
1636         size_t max_entries = 16;
1637         size_t firmware_offset = 0x1014;
1638         FILE *input_file;
1639
1640         struct stat statbuf;
1641
1642         /* check input file */
1643         if (stat(input, &statbuf)) {
1644                 error(1, errno, "Can not read input firmware %s", input);
1645         }
1646
1647         /* check if output directory exists */
1648         if (stat(output_directory, &statbuf)) {
1649                 error(1, errno, "Failed to stat output directory %s", output_directory);
1650         }
1651
1652         if ((statbuf.st_mode & S_IFMT) != S_IFDIR) {
1653                 error(1, errno, "Given output directory is not a directory %s", output_directory);
1654         }
1655
1656         input_file = fopen(input, "rb");
1657
1658         if (read_partition_table(input_file, firmware_offset, entries, 16, 0) != 0) {
1659                 error(1, 0, "Error can not read the partition table (fwup-ptn)");
1660         }
1661
1662         for (int i = 0; i < max_entries; i++) {
1663                 if (entries[i].name == NULL &&
1664                                 entries[i].base == 0 &&
1665                                 entries[i].size == 0)
1666                         continue;
1667
1668                 extract_firmware_partition(input_file, firmware_offset, &entries[i], output_directory);
1669         }
1670
1671         return 0;
1672 }
1673
1674 static struct flash_partition_entry *find_partition(
1675                 struct flash_partition_entry *entries, size_t max_entries,
1676                 const char *name, const char *error_msg)
1677 {
1678         for (int i = 0; i < max_entries; i++, entries++) {
1679                 if (strcmp(entries->name, name) == 0)
1680                         return entries;
1681         }
1682
1683         error(1, 0, "%s", error_msg);
1684         return NULL;
1685 }
1686
1687 static void write_ff(FILE *output_file, size_t size)
1688 {
1689         char buf[4096];
1690         int offset;
1691
1692         memset(buf, 0xff, sizeof(buf));
1693
1694         for (offset = 0; offset + sizeof(buf) < size ; offset += sizeof(buf)) {
1695                 if (fwrite(buf, sizeof(buf), 1, output_file) < 0)
1696                         error(1, errno, "Can not write 0xff to output_file");
1697         }
1698
1699         /* write last chunk smaller than buffer */
1700         if (offset < size) {
1701                 offset = size - offset;
1702                 if (fwrite(buf, offset, 1, output_file) < 0)
1703                         error(1, errno, "Can not write partition to output_file");
1704         }
1705 }
1706
1707 static void convert_firmware(const char *input, const char *output)
1708 {
1709         struct flash_partition_entry fwup[MAX_PARTITIONS] = { 0 };
1710         struct flash_partition_entry flash[MAX_PARTITIONS] = { 0 };
1711         struct flash_partition_entry *fwup_os_image = NULL, *fwup_file_system = NULL;
1712         struct flash_partition_entry *flash_os_image = NULL, *flash_file_system = NULL;
1713         struct flash_partition_entry *fwup_partition_table = NULL;
1714         size_t firmware_offset = 0x1014;
1715         FILE *input_file, *output_file;
1716
1717         struct stat statbuf;
1718
1719         /* check input file */
1720         if (stat(input, &statbuf)) {
1721                 error(1, errno, "Can not read input firmware %s", input);
1722         }
1723
1724         input_file = fopen(input, "rb");
1725         if (!input_file)
1726                 error(1, 0, "Can not open input firmware %s", input);
1727
1728         output_file = fopen(output, "wb");
1729         if (!output_file)
1730                 error(1, 0, "Can not open output firmware %s", output);
1731
1732         if (read_partition_table(input_file, firmware_offset, fwup, MAX_PARTITIONS, 0) != 0) {
1733                 error(1, 0, "Error can not read the partition table (fwup-ptn)");
1734         }
1735
1736         fwup_os_image = find_partition(fwup, MAX_PARTITIONS,
1737                         "os-image", "Error can not find os-image partition (fwup)");
1738         fwup_file_system = find_partition(fwup, MAX_PARTITIONS,
1739                         "file-system", "Error can not find file-system partition (fwup)");
1740         fwup_partition_table = find_partition(fwup, MAX_PARTITIONS,
1741                         "partition-table", "Error can not find partition-table partition");
1742
1743         /* the flash partition table has a 0x00000004 magic haeder */
1744         if (read_partition_table(input_file, firmware_offset + fwup_partition_table->base + 4, flash, MAX_PARTITIONS, 1) != 0)
1745                 error(1, 0, "Error can not read the partition table (flash)");
1746
1747         flash_os_image = find_partition(flash, MAX_PARTITIONS,
1748                         "os-image", "Error can not find os-image partition (flash)");
1749         flash_file_system = find_partition(flash, MAX_PARTITIONS,
1750                         "file-system", "Error can not find file-system partition (flash)");
1751
1752         /* write os_image to 0x0 */
1753         write_partition(input_file, firmware_offset, fwup_os_image, output_file);
1754         write_ff(output_file, flash_os_image->size - fwup_os_image->size);
1755
1756         /* write file-system behind os_image */
1757         fseek(output_file, flash_file_system->base - flash_os_image->base, SEEK_SET);
1758         write_partition(input_file, firmware_offset, fwup_file_system, output_file);
1759         write_ff(output_file, flash_file_system->size - fwup_file_system->size);
1760
1761         fclose(output_file);
1762         fclose(input_file);
1763 }
1764
1765 int main(int argc, char *argv[]) {
1766         const char *board = NULL, *kernel_image = NULL, *rootfs_image = NULL, *output = NULL;
1767         const char *extract_image = NULL, *output_directory = NULL, *convert_image = NULL;
1768         bool add_jffs2_eof = false, sysupgrade = false;
1769         unsigned rev = 0;
1770         const struct device_info *info;
1771         set_source_date_epoch();
1772
1773         while (true) {
1774                 int c;
1775
1776                 c = getopt(argc, argv, "B:k:r:o:V:jSh:x:d:z:");
1777                 if (c == -1)
1778                         break;
1779
1780                 switch (c) {
1781                 case 'B':
1782                         board = optarg;
1783                         break;
1784
1785                 case 'k':
1786                         kernel_image = optarg;
1787                         break;
1788
1789                 case 'r':
1790                         rootfs_image = optarg;
1791                         break;
1792
1793                 case 'o':
1794                         output = optarg;
1795                         break;
1796
1797                 case 'V':
1798                         sscanf(optarg, "r%u", &rev);
1799                         break;
1800
1801                 case 'j':
1802                         add_jffs2_eof = true;
1803                         break;
1804
1805                 case 'S':
1806                         sysupgrade = true;
1807                         break;
1808
1809                 case 'h':
1810                         usage(argv[0]);
1811                         return 0;
1812
1813                 case 'd':
1814                         output_directory = optarg;
1815                         break;
1816
1817                 case 'x':
1818                         extract_image = optarg;
1819                         break;
1820
1821                 case 'z':
1822                         convert_image = optarg;
1823                         break;
1824
1825                 default:
1826                         usage(argv[0]);
1827                         return 1;
1828                 }
1829         }
1830
1831         if (extract_image || output_directory) {
1832                 if (!extract_image)
1833                         error(1, 0, "No factory/oem image given via -x <file>. Output directory is only valid with -x");
1834                 if (!output_directory)
1835                         error(1, 0, "Can not extract an image without output directory. Use -d <dir>");
1836                 extract_firmware(extract_image, output_directory);
1837         } else if (convert_image) {
1838                 if (!output)
1839                         error(1, 0, "Can not convert a factory/oem image into sysupgrade image without output file. Use -o <file>");
1840                 convert_firmware(convert_image, output);
1841         } else {
1842                 if (!board)
1843                         error(1, 0, "no board has been specified");
1844                 if (!kernel_image)
1845                         error(1, 0, "no kernel image has been specified");
1846                 if (!rootfs_image)
1847                         error(1, 0, "no rootfs image has been specified");
1848                 if (!output)
1849                         error(1, 0, "no output filename has been specified");
1850
1851                 info = find_board(board);
1852
1853                 if (info == NULL)
1854                         error(1, 0, "unsupported board %s", board);
1855
1856                 build_image(output, kernel_image, rootfs_image, rev, add_jffs2_eof, sysupgrade, info);
1857         }
1858
1859         return 0;
1860 }