git.ozlabs.org Git - petitboot/blob - lib/pb-protocol/pb-protocol.c

   1
   2 #include <assert.h>
   3 #include <errno.h>
   4 #include <string.h>
   5 #include <stdbool.h>
   6 #include <stdint.h>
   7 #include <asm/byteorder.h>
   8
   9 #include <talloc/talloc.h>
  10 #include <list/list.h>
  11 #include <log/log.h>
  12
  13 #include "pb-protocol.h"
  14
  15
  16 /* Message format:
  17  *
  18  * 4-byte action, determines the remaining message content
  19  * 4-byte total payload len
  20  *   - not including action and payload len header
  21  *
  22  * action = 0x1: device add message
  23  *  payload:
  24  *   4-byte len, id
  25  *   1-byte type
  26  *   4-byte len, name
  27  *   4-byte len, description
  28  *   4-byte len, icon_file
  29  *
  30  *   4-byte option count
  31  *   for each option:
  32  *    4-byte len, id
  33  *    4-byte len, name
  34  *    4-byte len, description
  35  *    4-byte len, icon_file
  36  *    4-byte len, boot_image_file
  37  *    4-byte len, initrd_file
  38  *    4-byte len, dtb_file
  39  *    4-byte len, boot_args
  40  *    4-byte len, args_sig_file
  41  *
  42  * action = 0x2: device remove message
  43  *  payload:
  44  *   4-byte len, id
  45  *
  46  * action = 0x3: boot
  47  *  payload:
  48  *   4-byte len, boot option id
  49  *   4-byte len, boot_image_file
  50  *   4-byte len, initrd_file
  51  *   4-byte len, dtb_file
  52  *   4-byte len, boot_args
  53  *   4-byte len, args_sig_file
  54  *
  55  */
  56
  57 void pb_protocol_dump_device(const struct device *dev, const char *text,
  58         FILE *stream)
  59 {
  60         struct boot_option *opt;
  61
  62         fprintf(stream, "%snew dev:\n", text);
  63         fprintf(stream, "%s\tid:   %s\n", text, dev->id);
  64         fprintf(stream, "%s\tname: %s\n", text, dev->name);
  65         fprintf(stream, "%s\tdesc: %s\n", text, dev->description);
  66         fprintf(stream, "%s\ticon: %s\n", text, dev->icon_file);
  67         fprintf(stream, "%s\tboot options:\n", text);
  68         list_for_each_entry(&dev->boot_options, opt, list) {
  69                 fprintf(stream, "%s\t\tid:   %s\n", text, opt->id);
  70                 fprintf(stream, "%s\t\tname: %s\n", text, opt->name);
  71                 fprintf(stream, "%s\t\tdesc: %s\n", text, opt->description);
  72                 fprintf(stream, "%s\t\ticon: %s\n", text, opt->icon_file);
  73                 fprintf(stream, "%s\t\tboot: %s\n", text, opt->boot_image_file);
  74                 fprintf(stream, "%s\t\tinit: %s\n", text, opt->initrd_file);
  75                 fprintf(stream, "%s\t\tdtb:  %s\n", text, opt->dtb_file);
  76                 fprintf(stream, "%s\t\targs: %s\n", text, opt->boot_args);
  77                 fprintf(stream, "%s\t\tasig: %s\n", text, opt->args_sig_file);
  78                 fprintf(stream, "%s\t\ttype: %s\n", text,
  79                         opt->type == DISCOVER_BOOT_OPTION ? "boot" : "plugin");
  80         }
  81 }
  82
  83 int pb_protocol_device_cmp(const struct device *a, const struct device *b)
  84 {
  85         return !strcmp(a->id, b->id);
  86 }
  87
  88 int pb_protocol_boot_option_cmp(const struct boot_option *a,
  89         const struct boot_option *b)
  90 {
  91         return !strcmp(a->id, b->id);
  92 }
  93
  94 /* Write a string into the buffer, starting at pos.
  95  *
  96  * Returns the total length used for the write, including length header.
  97  */
  98 int pb_protocol_serialise_string(char *pos, const char *str)
  99 {
 100         int len = 0;
 101
 102         if (str)
 103                 len = strlen(str);
 104
 105         *(uint32_t *)pos = __cpu_to_be32(len);
 106         pos += sizeof(uint32_t);
 107
 108         memcpy(pos, str, len);
 109
 110         return len + sizeof(uint32_t);
 111 }
 112
 113 /* Read a string from a buffer, allocating the new string as necessary.
 114  *
 115  * @param[in] ctx       The talloc context to base the allocation on
 116  * @param[in,out] pos   Where to start reading
 117  * @param[in,out] len   The amount of data remaining in the buffer
 118  * @param[out] str      Pointer to resuling string
 119  * @return              zero on success, non-zero on failure
 120  */
 121 static int read_string(void *ctx, const char **pos, unsigned int *len,
 122         char **str)
 123 {
 124         uint32_t str_len, read_len;
 125
 126         if (*len < sizeof(uint32_t))
 127                 return -1;
 128
 129         str_len = __be32_to_cpu(*(uint32_t *)(*pos));
 130         read_len = sizeof(uint32_t);
 131
 132         if (read_len + str_len > *len)
 133                 return -1;
 134
 135         if (str_len == 0)
 136                 *str = NULL;
 137         else
 138                 *str = talloc_strndup(ctx, *pos + read_len, str_len);
 139
 140         read_len += str_len;
 141
 142         /* all ok, update the caller's pointers */
 143         *pos += read_len;
 144         *len -= read_len;
 145
 146         return 0;
 147 }
 148
 149 static int read_u32(const char **pos, unsigned int *len, unsigned int *p)
 150 {
 151         if (*len < sizeof(uint32_t))
 152                 return -1;
 153
 154         *p = (unsigned int)__be32_to_cpu(*(uint32_t *)(*pos));
 155         *pos += sizeof(uint32_t);
 156         *len -= sizeof(uint32_t);
 157
 158         return 0;
 159 }
 160
 161 char *pb_protocol_deserialise_string(void *ctx,
 162                 const struct pb_protocol_message *message)
 163 {
 164         const char *buf;
 165         char *str;
 166         unsigned int len;
 167
 168         len = message->payload_len;
 169         buf = message->payload;
 170
 171         if (read_string(ctx, &buf, &len, &str))
 172                 return NULL;
 173
 174         return str;
 175 }
 176
 177 static int optional_strlen(const char *str)
 178 {
 179         if (!str)
 180                 return 0;
 181         return strlen(str);
 182 }
 183
 184 int pb_protocol_device_len(const struct device *dev)
 185 {
 186         return  4 + optional_strlen(dev->id) +
 187                 sizeof(dev->type) +
 188                 4 + optional_strlen(dev->name) +
 189                 4 + optional_strlen(dev->description) +
 190                 4 + optional_strlen(dev->icon_file);
 191 }
 192
 193 int pb_protocol_boot_option_len(const struct boot_option *opt)
 194 {
 195
 196         return  4 + optional_strlen(opt->device_id) +
 197                 4 + optional_strlen(opt->id) +
 198                 4 + optional_strlen(opt->name) +
 199                 4 + optional_strlen(opt->description) +
 200                 4 + optional_strlen(opt->icon_file) +
 201                 4 + optional_strlen(opt->boot_image_file) +
 202                 4 + optional_strlen(opt->initrd_file) +
 203                 4 + optional_strlen(opt->dtb_file) +
 204                 4 + optional_strlen(opt->boot_args) +
 205                 4 + optional_strlen(opt->args_sig_file) +
 206                 sizeof(opt->is_default) +
 207                 sizeof(opt->is_autoboot_default) +
 208                 sizeof(opt->type);
 209 }
 210
 211 int pb_protocol_boot_len(const struct boot_command *boot)
 212 {
 213         return  4 + optional_strlen(boot->option_id) +
 214                 4 + optional_strlen(boot->boot_image_file) +
 215                 4 + optional_strlen(boot->initrd_file) +
 216                 4 + optional_strlen(boot->dtb_file) +
 217                 4 + optional_strlen(boot->boot_args) +
 218                 4 + optional_strlen(boot->args_sig_file) +
 219                 4 + optional_strlen(boot->console);
 220 }
 221
 222 int pb_protocol_boot_status_len(const struct status *status)
 223 {
 224         return  4 +     /* type */
 225                 4 + optional_strlen(status->message) +
 226                 4 +     /* backlog */
 227                 4;      /* boot_active */
 228 }
 229
 230 int pb_protocol_system_info_len(const struct system_info *sysinfo)
 231 {
 232         unsigned int len, i;
 233
 234         len =   4 + optional_strlen(sysinfo->type) +
 235                 4 + optional_strlen(sysinfo->identifier) +
 236                 4 + 4;
 237
 238         len +=  4;
 239         for (i = 0; i < sysinfo->n_primary; i++)
 240                 len += 4 + optional_strlen(sysinfo->platform_primary[i]);
 241         len +=  4;
 242         for (i = 0; i < sysinfo->n_other; i++)
 243                 len += 4 + optional_strlen(sysinfo->platform_other[i]);
 244
 245         len +=  4;
 246         for (i = 0; i < sysinfo->n_bmc_current; i++)
 247                 len += 4 + optional_strlen(sysinfo->bmc_current[i]);
 248         len +=  4;
 249         for (i = 0; i < sysinfo->n_bmc_golden; i++)
 250                 len += 4 + optional_strlen(sysinfo->bmc_golden[i]);
 251
 252         for (i = 0; i < sysinfo->n_interfaces; i++) {
 253                 struct interface_info *if_info = sysinfo->interfaces[i];
 254                 len +=  4 + if_info->hwaddr_size +
 255                         4 + optional_strlen(if_info->name) +
 256                         sizeof(if_info->link) +
 257                         4 + optional_strlen(if_info->address) +
 258                         4 + optional_strlen(if_info->address_v6);
 259         }
 260
 261         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 262                 struct blockdev_info *bd_info = sysinfo->blockdevs[i];
 263                 len +=  4 + optional_strlen(bd_info->name) +
 264                         4 + optional_strlen(bd_info->uuid) +
 265                         4 + optional_strlen(bd_info->mountpoint);
 266         }
 267
 268         /* BMC MAC */
 269         len += HWADDR_SIZE;
 270
 271         return len;
 272 }
 273
 274 static int pb_protocol_interface_config_len(struct interface_config *conf)
 275 {
 276         unsigned int len;
 277
 278         len =   sizeof(conf->hwaddr) +
 279                 4 /* conf->ignore */;
 280
 281         if (conf->ignore)
 282                 return len;
 283
 284         len += 4 /* conf->method */;
 285
 286         if (conf->method == CONFIG_METHOD_STATIC) {
 287                 len += 4 + optional_strlen(conf->static_config.address);
 288                 len += 4 + optional_strlen(conf->static_config.gateway);
 289                 len += 4 + optional_strlen(conf->static_config.url);
 290         }
 291
 292         len += 4 /* conf->override */;
 293
 294         return len;
 295 }
 296
 297 int pb_protocol_config_len(const struct config *config)
 298 {
 299         unsigned int i, len;
 300
 301         len =   4 /* config->autoboot_enabled */ +
 302                 4 /* config->autoboot_timeout_sec */ +
 303                 4 /* config->safe_mode */;
 304
 305         len += 4;
 306         for (i = 0; i < config->network.n_interfaces; i++)
 307                 len += pb_protocol_interface_config_len(
 308                                 config->network.interfaces[i]);
 309
 310         len += 4;
 311         for (i = 0; i < config->network.n_dns_servers; i++)
 312                 len += 4 + optional_strlen(config->network.dns_servers[i]);
 313
 314         len += 4 + optional_strlen(config->http_proxy);
 315         len += 4 + optional_strlen(config->https_proxy);
 316
 317         len += 4;
 318         for (i = 0; i < config->n_autoboot_opts; i++) {
 319                 if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE)
 320                         len += 4 + 4;
 321                 else
 322                         len += 4 + 4 +
 323                                 optional_strlen(config->autoboot_opts[i].uuid);
 324         }
 325
 326         len += 4 + 4; /* ipmi_bootdev, ipmi_bootdev_persistent */
 327         len += 4; /* ipmi_bootdev_mailbox */
 328
 329         len += 4; /* allow_writes */
 330
 331         len += 4; /* n_consoles */
 332         for (i = 0; i < config->n_consoles; i++)
 333                 len += 4 + optional_strlen(config->consoles[i]);
 334
 335         len += 4 + optional_strlen(config->boot_console);
 336         len += 4; /* manual_console */
 337
 338         len += 4 + optional_strlen(config->lang);
 339
 340         return len;
 341 }
 342
 343 int pb_protocol_url_len(const char *url)
 344 {
 345         /* url + length field */
 346         return 4 + optional_strlen(url);
 347 }
 348
 349
 350 int pb_protocol_plugin_option_len(const struct plugin_option *opt)
 351 {
 352         unsigned int i, len = 0;
 353
 354         len += 4 + optional_strlen(opt->id);
 355         len += 4 + optional_strlen(opt->name);
 356         len += 4 + optional_strlen(opt->vendor);
 357         len += 4 + optional_strlen(opt->vendor_id);
 358         len += 4 + optional_strlen(opt->version);
 359         len += 4 + optional_strlen(opt->date);
 360         len += 4 + optional_strlen(opt->plugin_file);
 361
 362         len += 4; /* n_executables */
 363         for (i = 0; i < opt->n_executables; i++)
 364                 len += 4 + optional_strlen(opt->executables[i]);
 365
 366         return len;
 367 }
 368
 369 int pb_protocol_temp_autoboot_len(const struct autoboot_option *opt)
 370 {
 371         unsigned int len = 0;
 372
 373         /* boot_type */
 374         len += 4;
 375
 376         if (opt->boot_type == BOOT_DEVICE_TYPE)
 377                 len += 4;
 378         else
 379                 len += optional_strlen(opt->uuid);
 380
 381         return len;
 382 }
 383
 384 int pb_protocol_authenticate_len(struct auth_message *msg)
 385 {
 386         switch (msg->op) {
 387         case AUTH_MSG_REQUEST:
 388                 /* enum + password + length */
 389                 return 4 + 4 + optional_strlen(msg->password);
 390         case AUTH_MSG_RESPONSE:
 391                 /* enum + bool */
 392                 return 4 + 4;
 393         case AUTH_MSG_SET:
 394                 /* enum + password + password */
 395                 return 4 + 4 + optional_strlen(msg->set_password.password) +
 396                         4 + optional_strlen(msg->set_password.new_password);
 397         case AUTH_MSG_DECRYPT:
 398                 /* enum + password + device id */
 399                 return 4 + 4 + optional_strlen(msg->decrypt_dev.password) +
 400                         4 + optional_strlen(msg->decrypt_dev.device_id);
 401         default:
 402                 pb_log("%s: invalid input\n", __func__);
 403                 return 0;
 404         }
 405 }
 406
 407 int pb_protocol_serialise_device(const struct device *dev,
 408                 char *buf, int buf_len)
 409 {
 410         char *pos = buf;
 411
 412         pos += pb_protocol_serialise_string(pos, dev->id);
 413         *(enum device_type *)pos = dev->type;
 414         pos += sizeof(enum device_type);
 415         pos += pb_protocol_serialise_string(pos, dev->name);
 416         pos += pb_protocol_serialise_string(pos, dev->description);
 417         pos += pb_protocol_serialise_string(pos, dev->icon_file);
 418
 419         assert(pos <= buf + buf_len);
 420         (void)buf_len;
 421
 422         return 0;
 423 }
 424
 425 int pb_protocol_serialise_boot_option(const struct boot_option *opt,
 426                 char *buf, int buf_len)
 427 {
 428         char *pos = buf;
 429
 430         pos += pb_protocol_serialise_string(pos, opt->device_id);
 431         pos += pb_protocol_serialise_string(pos, opt->id);
 432         pos += pb_protocol_serialise_string(pos, opt->name);
 433         pos += pb_protocol_serialise_string(pos, opt->description);
 434         pos += pb_protocol_serialise_string(pos, opt->icon_file);
 435         pos += pb_protocol_serialise_string(pos, opt->boot_image_file);
 436         pos += pb_protocol_serialise_string(pos, opt->initrd_file);
 437         pos += pb_protocol_serialise_string(pos, opt->dtb_file);
 438         pos += pb_protocol_serialise_string(pos, opt->boot_args);
 439         pos += pb_protocol_serialise_string(pos, opt->args_sig_file);
 440
 441         *(bool *)pos = opt->is_default;
 442         pos += sizeof(bool);
 443         *(bool *)pos = opt->is_autoboot_default;
 444         pos += sizeof(bool);
 445
 446         *(uint32_t *)pos = __cpu_to_be32(opt->type);
 447         pos += 4;
 448
 449         assert(pos <= buf + buf_len);
 450         (void)buf_len;
 451
 452         return 0;
 453 }
 454
 455 int pb_protocol_serialise_boot_command(const struct boot_command *boot,
 456                 char *buf, int buf_len)
 457 {
 458         char *pos = buf;
 459
 460         pos += pb_protocol_serialise_string(pos, boot->option_id);
 461         pos += pb_protocol_serialise_string(pos, boot->boot_image_file);
 462         pos += pb_protocol_serialise_string(pos, boot->initrd_file);
 463         pos += pb_protocol_serialise_string(pos, boot->dtb_file);
 464         pos += pb_protocol_serialise_string(pos, boot->boot_args);
 465         pos += pb_protocol_serialise_string(pos, boot->args_sig_file);
 466         pos += pb_protocol_serialise_string(pos, boot->console);
 467
 468         assert(pos <= buf + buf_len);
 469         (void)buf_len;
 470
 471         return 0;
 472 }
 473
 474 int pb_protocol_serialise_boot_status(const struct status *status,
 475                 char *buf, int buf_len)
 476 {
 477         char *pos = buf;
 478
 479         *(uint32_t *)pos = __cpu_to_be32(status->type);
 480         pos += sizeof(uint32_t);
 481
 482         pos += pb_protocol_serialise_string(pos, status->message);
 483
 484         *(bool *)pos = __cpu_to_be32(status->backlog);
 485         pos += sizeof(bool);
 486
 487         *(bool *)pos = __cpu_to_be32(status->boot_active);
 488         pos += sizeof(bool);
 489
 490         assert(pos <= buf + buf_len);
 491         (void)buf_len;
 492
 493         return 0;
 494 }
 495
 496 int pb_protocol_serialise_system_info(const struct system_info *sysinfo,
 497                 char *buf, int buf_len)
 498 {
 499         char *pos = buf;
 500         unsigned int i;
 501
 502         pos += pb_protocol_serialise_string(pos, sysinfo->type);
 503         pos += pb_protocol_serialise_string(pos, sysinfo->identifier);
 504
 505         *(uint32_t *)pos = __cpu_to_be32(sysinfo->n_primary);
 506         pos += sizeof(uint32_t);
 507         for (i = 0; i < sysinfo->n_primary; i++)
 508                 pos += pb_protocol_serialise_string(pos, sysinfo->platform_primary[i]);
 509
 510         *(uint32_t *)pos = __cpu_to_be32(sysinfo->n_other);
 511         pos += sizeof(uint32_t);
 512         for (i = 0; i < sysinfo->n_other; i++)
 513                 pos += pb_protocol_serialise_string(pos, sysinfo->platform_other[i]);
 514
 515         *(uint32_t *)pos = __cpu_to_be32(sysinfo->n_bmc_current);
 516         pos += sizeof(uint32_t);
 517         for (i = 0; i < sysinfo->n_bmc_current; i++)
 518                 pos += pb_protocol_serialise_string(pos, sysinfo->bmc_current[i]);
 519
 520         *(uint32_t *)pos = __cpu_to_be32(sysinfo->n_bmc_golden);
 521         pos += sizeof(uint32_t);
 522         for (i = 0; i < sysinfo->n_bmc_golden; i++)
 523                 pos += pb_protocol_serialise_string(pos, sysinfo->bmc_golden[i]);
 524
 525         *(uint32_t *)pos = __cpu_to_be32(sysinfo->n_interfaces);
 526         pos += sizeof(uint32_t);
 527
 528         for (i = 0; i < sysinfo->n_interfaces; i++) {
 529                 struct interface_info *if_info = sysinfo->interfaces[i];
 530
 531                 *(uint32_t *)pos = __cpu_to_be32(if_info->hwaddr_size);
 532                 pos += sizeof(uint32_t);
 533
 534                 memcpy(pos, if_info->hwaddr, if_info->hwaddr_size);
 535                 pos += if_info->hwaddr_size;
 536
 537                 pos += pb_protocol_serialise_string(pos, if_info->name);
 538
 539                 *(bool *)pos = if_info->link;
 540                 pos += sizeof(bool);
 541
 542                 pos += pb_protocol_serialise_string(pos, if_info->address);
 543                 pos += pb_protocol_serialise_string(pos, if_info->address_v6);
 544         }
 545
 546         *(uint32_t *)pos = __cpu_to_be32(sysinfo->n_blockdevs);
 547         pos += sizeof(uint32_t);
 548
 549         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 550                 struct blockdev_info *bd_info = sysinfo->blockdevs[i];
 551
 552                 pos += pb_protocol_serialise_string(pos, bd_info->name);
 553                 pos += pb_protocol_serialise_string(pos, bd_info->uuid);
 554                 pos += pb_protocol_serialise_string(pos, bd_info->mountpoint);
 555         }
 556
 557         if (sysinfo->bmc_mac)
 558                 memcpy(pos, sysinfo->bmc_mac, HWADDR_SIZE);
 559         else
 560                 memset(pos, 0, HWADDR_SIZE);
 561         pos += HWADDR_SIZE;
 562
 563         assert(pos <= buf + buf_len);
 564         (void)buf_len;
 565
 566         return 0;
 567 }
 568
 569 static int pb_protocol_serialise_config_interface(char *buf,
 570                 struct interface_config *conf)
 571 {
 572         char *pos = buf;
 573
 574         memcpy(pos, conf->hwaddr, sizeof(conf->hwaddr));
 575         pos += sizeof(conf->hwaddr);
 576
 577         *(uint32_t *)pos = conf->ignore;
 578         pos += 4;
 579
 580         if (conf->ignore)
 581                 return pos - buf;
 582
 583         *(uint32_t *)pos = __cpu_to_be32(conf->method);
 584         pos += 4;
 585
 586         if (conf->method == CONFIG_METHOD_STATIC) {
 587                 pos += pb_protocol_serialise_string(pos,
 588                                 conf->static_config.address);
 589                 pos += pb_protocol_serialise_string(pos,
 590                                 conf->static_config.gateway);
 591                 pos += pb_protocol_serialise_string(pos,
 592                                 conf->static_config.url);
 593         }
 594
 595         *(uint32_t *)pos = conf->override;
 596         pos += 4;
 597
 598         return pos - buf;
 599 }
 600
 601 int pb_protocol_serialise_config(const struct config *config,
 602                 char *buf, int buf_len)
 603 {
 604         char *pos = buf;
 605         unsigned int i;
 606
 607         *(uint32_t *)pos = config->autoboot_enabled;
 608         pos += 4;
 609
 610         *(uint32_t *)pos = __cpu_to_be32(config->autoboot_timeout_sec);
 611         pos += 4;
 612
 613         *(uint32_t *)pos = config->safe_mode;
 614         pos += 4;
 615
 616         *(uint32_t *)pos = __cpu_to_be32(config->network.n_interfaces);
 617         pos += 4;
 618         for (i = 0; i < config->network.n_interfaces; i++) {
 619                 struct interface_config *iface =
 620                         config->network.interfaces[i];
 621                 pos += pb_protocol_serialise_config_interface(pos, iface);
 622         }
 623
 624         *(uint32_t *)pos = __cpu_to_be32(config->network.n_dns_servers);
 625         pos += 4;
 626         for (i = 0; i < config->network.n_dns_servers; i++) {
 627                 pos += pb_protocol_serialise_string(pos,
 628                                 config->network.dns_servers[i]);
 629         }
 630
 631         pos += pb_protocol_serialise_string(pos, config->http_proxy);
 632         pos += pb_protocol_serialise_string(pos, config->https_proxy);
 633
 634         *(uint32_t *)pos = __cpu_to_be32(config->n_autoboot_opts);
 635         pos += 4;
 636         for (i = 0; i < config->n_autoboot_opts; i++) {
 637                 *(uint32_t *)pos =
 638                         __cpu_to_be32(config->autoboot_opts[i].boot_type);
 639                 pos += 4;
 640                 if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE) {
 641                         *(uint32_t *)pos =
 642                                 __cpu_to_be32(config->autoboot_opts[i].type);
 643                         pos += 4;
 644                 } else {
 645                         pos += pb_protocol_serialise_string(pos,
 646                                                 config->autoboot_opts[i].uuid);
 647                 }
 648         }
 649
 650         *(uint32_t *)pos = __cpu_to_be32(config->ipmi_bootdev);
 651         pos += 4;
 652         *(uint32_t *)pos = config->ipmi_bootdev_persistent;
 653         pos += 4;
 654         *(uint32_t *)pos = config->ipmi_bootdev_mailbox;
 655         pos += 4;
 656
 657         *(uint32_t *)pos = config->allow_writes;
 658         pos += 4;
 659
 660         *(uint32_t *)pos = __cpu_to_be32(config->n_consoles);
 661         pos += 4;
 662         for (i = 0; i < config->n_consoles; i++)
 663                 pos += pb_protocol_serialise_string(pos, config->consoles[i]);
 664
 665         pos += pb_protocol_serialise_string(pos, config->boot_console);
 666         *(uint32_t *)pos = config->manual_console;
 667         pos += 4;
 668
 669         pos += pb_protocol_serialise_string(pos, config->lang);
 670
 671         assert(pos <= buf + buf_len);
 672         (void)buf_len;
 673
 674         return 0;
 675 }
 676
 677 int pb_protocol_serialise_url(const char *url, char *buf, int buf_len)
 678 {
 679         char *pos = buf;
 680
 681         pos += pb_protocol_serialise_string(pos, url);
 682
 683         assert(pos <=buf+buf_len);
 684         (void)buf_len;
 685
 686         return 0;
 687 }
 688
 689 int pb_protocol_serialise_plugin_option(const struct plugin_option *opt,
 690                 char *buf, int buf_len)
 691 {
 692         char *pos = buf;
 693         unsigned int i;
 694
 695         pos += pb_protocol_serialise_string(pos, opt->id);
 696         pos += pb_protocol_serialise_string(pos, opt->name);
 697         pos += pb_protocol_serialise_string(pos, opt->vendor);
 698         pos += pb_protocol_serialise_string(pos, opt->vendor_id);
 699         pos += pb_protocol_serialise_string(pos, opt->version);
 700         pos += pb_protocol_serialise_string(pos, opt->date);
 701         pos += pb_protocol_serialise_string(pos, opt->plugin_file);
 702
 703         *(uint32_t *)pos = __cpu_to_be32(opt->n_executables);
 704         pos += 4;
 705
 706         for (i = 0; i < opt->n_executables; i++)
 707                 pos += pb_protocol_serialise_string(pos, opt->executables[i]);
 708
 709         assert(pos <= buf + buf_len);
 710         (void)buf_len;
 711
 712         return 0;
 713 }
 714
 715 int pb_protocol_serialise_temp_autoboot(const struct autoboot_option *opt,
 716                 char *buf, int buf_len)
 717 {
 718         char *pos = buf;
 719
 720         *(uint32_t *)pos = __cpu_to_be32(opt->boot_type);
 721         pos += 4;
 722
 723         if (opt->boot_type == BOOT_DEVICE_TYPE) {
 724                 *(uint32_t *)pos = __cpu_to_be32(opt->type);
 725                 pos += 4;
 726         } else {
 727                 pos += pb_protocol_serialise_string(pos, opt->uuid);
 728         }
 729
 730         (void)buf_len;
 731
 732         return 0;
 733 }
 734
 735 int pb_protocol_serialise_authenticate(struct auth_message *msg,
 736                 char *buf, int buf_len)
 737 {
 738         char *pos = buf;
 739
 740         *(enum auth_msg_type *)pos = msg->op;
 741         pos += sizeof(enum auth_msg_type);
 742
 743         switch(msg->op) {
 744         case AUTH_MSG_REQUEST:
 745                 pos += pb_protocol_serialise_string(pos, msg->password);
 746                 break;
 747         case AUTH_MSG_RESPONSE:
 748                 *(bool *)pos = msg->authenticated;
 749                 pos += sizeof(bool);
 750                 break;
 751         case AUTH_MSG_SET:
 752                 pos += pb_protocol_serialise_string(pos,
 753                                 msg->set_password.password);
 754                 pos += pb_protocol_serialise_string(pos,
 755                                 msg->set_password.new_password);
 756                 break;
 757         case AUTH_MSG_DECRYPT:
 758                 pos += pb_protocol_serialise_string(pos,
 759                                 msg->decrypt_dev.password);
 760                 pos += pb_protocol_serialise_string(pos,
 761                                 msg->decrypt_dev.device_id);
 762                 break;
 763         default:
 764                 pb_log("%s: invalid msg\n", __func__);
 765                 return -1;
 766         };
 767
 768         assert(pos <= buf + buf_len);
 769         (void)buf_len;
 770
 771         return 0;
 772 }
 773
 774 int pb_protocol_write_message(int fd, struct pb_protocol_message *message)
 775 {
 776         int total_len, rc;
 777         char *pos;
 778
 779         total_len = sizeof(*message) + message->payload_len;
 780
 781         message->payload_len = __cpu_to_be32(message->payload_len);
 782         message->action = __cpu_to_be32(message->action);
 783
 784         for (pos = (void *)message; total_len;) {
 785                 rc = write(fd, pos, total_len);
 786
 787                 if (rc <= 0)
 788                         break;
 789
 790                 total_len -= rc;
 791                 pos += rc;
 792         }
 793
 794         talloc_free(message);
 795
 796         if (!total_len)
 797                 return 0;
 798
 799         pb_log_fn("failed: %s\n", strerror(errno));
 800         return -1;
 801 }
 802
 803 struct pb_protocol_message *pb_protocol_create_message(void *ctx,
 804                 enum pb_protocol_action action, int payload_len)
 805 {
 806         struct pb_protocol_message *message;
 807
 808         if (payload_len > PB_PROTOCOL_MAX_PAYLOAD_SIZE) {
 809                 pb_log_fn("payload too big %u/%u\n", payload_len,
 810                         PB_PROTOCOL_MAX_PAYLOAD_SIZE);
 811                 return NULL;
 812         }
 813
 814         message = talloc_size(ctx, sizeof(*message) + payload_len);
 815
 816         /* we convert these to big-endian in write_message() */
 817         message->action = action;
 818         message->payload_len = payload_len;
 819
 820         return message;
 821
 822 }
 823
 824 struct pb_protocol_message *pb_protocol_read_message(void *ctx, int fd)
 825 {
 826         struct pb_protocol_message *message, m;
 827         int rc;
 828         unsigned int len;
 829
 830         /* use the stack for the initial 8-byte read */
 831
 832         rc = read(fd, &m, sizeof(m));
 833         if (rc != sizeof(m))
 834                 return NULL;
 835
 836         m.payload_len = __be32_to_cpu(m.payload_len);
 837         m.action = __be32_to_cpu(m.action);
 838
 839         if (m.payload_len > PB_PROTOCOL_MAX_PAYLOAD_SIZE) {
 840                 pb_log_fn("payload too big %u/%u\n", m.payload_len,
 841                         PB_PROTOCOL_MAX_PAYLOAD_SIZE);
 842                 return NULL;
 843         }
 844
 845         message = talloc_size(ctx, sizeof(m) + m.payload_len);
 846         memcpy(message, &m, sizeof(m));
 847
 848         for (len = 0; len < m.payload_len;) {
 849                 rc = read(fd, message->payload + len, m.payload_len - len);
 850
 851                 if (rc <= 0) {
 852                         talloc_free(message);
 853                         pb_log_fn("failed (%u): %s\n", len,
 854                                 strerror(errno));
 855                         return NULL;
 856                 }
 857
 858                 len += rc;
 859         }
 860
 861         return message;
 862 }
 863
 864
 865 int pb_protocol_deserialise_device(struct device *dev,
 866                 const struct pb_protocol_message *message)
 867 {
 868         unsigned int len;
 869         const char *pos;
 870         int rc = -1;
 871
 872         len = message->payload_len;
 873         pos = message->payload;
 874
 875         if (read_string(dev, &pos, &len, &dev->id))
 876                 goto out;
 877
 878         if (len < sizeof(enum device_type))
 879                 goto out;
 880         dev->type = *(enum device_type *)(pos);
 881         pos += sizeof(enum device_type);
 882         len -= sizeof(enum device_type);
 883
 884         if (read_string(dev, &pos, &len, &dev->name))
 885                 goto out;
 886
 887         if (read_string(dev, &pos, &len, &dev->description))
 888                 goto out;
 889
 890         if (read_string(dev, &pos, &len, &dev->icon_file))
 891                 goto out;
 892
 893         rc = 0;
 894
 895 out:
 896         return rc;
 897 }
 898
 899 int pb_protocol_deserialise_boot_option(struct boot_option *opt,
 900                 const struct pb_protocol_message *message)
 901 {
 902         unsigned int len;
 903         const char *pos;
 904         int rc = -1;
 905
 906         len = message->payload_len;
 907         pos = message->payload;
 908
 909         if (read_string(opt, &pos, &len, &opt->device_id))
 910                 goto out;
 911
 912         if (read_string(opt, &pos, &len, &opt->id))
 913                 goto out;
 914
 915         if (read_string(opt, &pos, &len, &opt->name))
 916                 goto out;
 917
 918         if (read_string(opt, &pos, &len, &opt->description))
 919                 goto out;
 920
 921         if (read_string(opt, &pos, &len, &opt->icon_file))
 922                 goto out;
 923
 924         if (read_string(opt, &pos, &len, &opt->boot_image_file))
 925                 goto out;
 926
 927         if (read_string(opt, &pos, &len, &opt->initrd_file))
 928                 goto out;
 929
 930         if (read_string(opt, &pos, &len, &opt->dtb_file))
 931                 goto out;
 932
 933         if (read_string(opt, &pos, &len, &opt->boot_args))
 934                 goto out;
 935
 936         if (read_string(opt, &pos, &len, &opt->args_sig_file))
 937                 goto out;
 938
 939         if (len < sizeof(bool))
 940                 goto out;
 941         opt->is_default = *(bool *)(pos);
 942         pos += sizeof(bool);
 943         len -= sizeof(bool);
 944         opt->is_autoboot_default = *(bool *)(pos);
 945         pos += sizeof(bool);
 946         len -= sizeof(bool);
 947
 948         if (read_u32(&pos, &len, &opt->type))
 949                 return -1;
 950
 951         rc = 0;
 952
 953 out:
 954         return rc;
 955 }
 956
 957 int pb_protocol_deserialise_boot_command(struct boot_command *cmd,
 958                 const struct pb_protocol_message *message)
 959 {
 960         unsigned int len;
 961         const char *pos;
 962         int rc = -1;
 963
 964         len = message->payload_len;
 965         pos = message->payload;
 966
 967         if (read_string(cmd, &pos, &len, &cmd->option_id))
 968                 goto out;
 969
 970         if (read_string(cmd, &pos, &len, &cmd->boot_image_file))
 971                 goto out;
 972
 973         if (read_string(cmd, &pos, &len, &cmd->initrd_file))
 974                 goto out;
 975
 976         if (read_string(cmd, &pos, &len, &cmd->dtb_file))
 977                 goto out;
 978
 979         if (read_string(cmd, &pos, &len, &cmd->boot_args))
 980                 goto out;
 981
 982         if (read_string(cmd, &pos, &len, &cmd->args_sig_file))
 983                 goto out;
 984
 985         if (read_string(cmd, &pos, &len, &cmd->console))
 986                 goto out;
 987
 988         rc = 0;
 989
 990 out:
 991         return rc;
 992 }
 993
 994 int pb_protocol_deserialise_boot_status(struct status *status,
 995                 const struct pb_protocol_message *message)
 996 {
 997         unsigned int len;
 998         const char *pos;
 999         int rc = -1;
1000
1001         len = message->payload_len;
1002         pos = message->payload;
1003
1004         /* first up, the type enum... */
1005         if (len < sizeof(uint32_t))
1006                 goto out;
1007
1008         status->type = __be32_to_cpu(*(uint32_t *)(pos));
1009
1010         switch (status->type) {
1011         case STATUS_ERROR:
1012         case STATUS_INFO:
1013                 break;
1014         default:
1015                 goto out;
1016         }
1017
1018         pos += sizeof(uint32_t);
1019         len -= sizeof(uint32_t);
1020
1021         /* message string */
1022         if (read_string(status, &pos, &len, &status->message))
1023                 goto out;
1024
1025         /* backlog */
1026         status->backlog = *(bool *)pos;
1027         pos += sizeof(status->backlog);
1028
1029         /* boot_active */
1030         status->boot_active = *(bool *)pos;
1031         pos += sizeof(status->boot_active);
1032
1033         rc = 0;
1034
1035 out:
1036         return rc;
1037 }
1038
1039 int pb_protocol_deserialise_system_info(struct system_info *sysinfo,
1040                 const struct pb_protocol_message *message)
1041 {
1042         unsigned int len, i;
1043         const char *pos;
1044         int rc = -1;
1045         char *tmp;
1046
1047         len = message->payload_len;
1048         pos = message->payload;
1049
1050         /* type and identifier strings */
1051         if (read_string(sysinfo, &pos, &len, &sysinfo->type))
1052                 goto out;
1053
1054         if (read_string(sysinfo, &pos, &len, &sysinfo->identifier))
1055                 goto out;
1056
1057         /* Platform version strings for openpower platforms */
1058         if (read_u32(&pos, &len, &sysinfo->n_primary))
1059                 goto out;
1060         sysinfo->platform_primary = talloc_array(sysinfo, char *,
1061                                                 sysinfo->n_primary);
1062         for (i = 0; i < sysinfo->n_primary; i++) {
1063                 if (read_string(sysinfo, &pos, &len, &tmp))
1064                         goto out;
1065                 sysinfo->platform_primary[i] = talloc_strdup(sysinfo, tmp);
1066         }
1067
1068         if (read_u32(&pos, &len, &sysinfo->n_other))
1069                 goto out;
1070         sysinfo->platform_other = talloc_array(sysinfo, char *,
1071                                                 sysinfo->n_other);
1072         for (i = 0; i < sysinfo->n_other; i++) {
1073                 if (read_string(sysinfo, &pos, &len, &tmp))
1074                         goto out;
1075                 sysinfo->platform_other[i] = talloc_strdup(sysinfo, tmp);
1076         }
1077
1078         /* BMC version strings for openpower platforms */
1079         if (read_u32(&pos, &len, &sysinfo->n_bmc_current))
1080                 goto out;
1081         sysinfo->bmc_current = talloc_array(sysinfo, char *,
1082                                                 sysinfo->n_bmc_current);
1083         for (i = 0; i < sysinfo->n_bmc_current; i++) {
1084                 if (read_string(sysinfo, &pos, &len, &tmp))
1085                         goto out;
1086                 sysinfo->bmc_current[i] = talloc_strdup(sysinfo, tmp);
1087         }
1088
1089         if (read_u32(&pos, &len, &sysinfo->n_bmc_golden))
1090                 goto out;
1091         sysinfo->bmc_golden = talloc_array(sysinfo, char *,
1092                                                 sysinfo->n_bmc_golden);
1093         for (i = 0; i < sysinfo->n_bmc_golden; i++) {
1094                 if (read_string(sysinfo, &pos, &len, &tmp))
1095                         goto out;
1096                 sysinfo->bmc_golden[i] = talloc_strdup(sysinfo, tmp);
1097         }
1098
1099         /* number of interfaces */
1100         if (read_u32(&pos, &len, &sysinfo->n_interfaces))
1101                 goto out;
1102
1103         sysinfo->interfaces = talloc_array(sysinfo, struct interface_info *,
1104                         sysinfo->n_interfaces);
1105
1106         for (i = 0; i < sysinfo->n_interfaces; i++) {
1107                 struct interface_info *if_info = talloc(sysinfo,
1108                                                         struct interface_info);
1109
1110                 if (read_u32(&pos, &len, &if_info->hwaddr_size))
1111                         goto out;
1112
1113                 if (len < if_info->hwaddr_size)
1114                         goto out;
1115
1116                 if_info->hwaddr = talloc_memdup(if_info, pos,
1117                                                 if_info->hwaddr_size);
1118                 pos += if_info->hwaddr_size;
1119                 len -= if_info->hwaddr_size;
1120
1121                 if (read_string(if_info, &pos, &len, &if_info->name))
1122                         goto out;
1123
1124                 if_info->link = *(bool *)pos;
1125                 pos += sizeof(if_info->link);
1126
1127                 if (read_string(if_info, &pos, &len, &if_info->address))
1128                         goto out;
1129                 if (read_string(if_info, &pos, &len, &if_info->address_v6))
1130                         goto out;
1131
1132                 sysinfo->interfaces[i] = if_info;
1133         }
1134
1135         /* number of interfaces */
1136         if (read_u32(&pos, &len, &sysinfo->n_blockdevs))
1137                 goto out;
1138
1139         sysinfo->blockdevs = talloc_array(sysinfo, struct blockdev_info *,
1140                         sysinfo->n_blockdevs);
1141
1142         for (i = 0; i < sysinfo->n_blockdevs; i++) {
1143                 struct blockdev_info *bd_info = talloc(sysinfo,
1144                                                         struct blockdev_info);
1145
1146                 if (read_string(bd_info, &pos, &len, &bd_info->name))
1147                         goto out;
1148
1149                 if (read_string(bd_info, &pos, &len, &bd_info->uuid))
1150                         goto out;
1151
1152                 if (read_string(bd_info, &pos, &len, &bd_info->mountpoint))
1153                         goto out;
1154
1155                 sysinfo->blockdevs[i] = bd_info;
1156         }
1157
1158         for (i = 0; i < HWADDR_SIZE; i++) {
1159                 if (pos[i] != 0) {
1160                         sysinfo->bmc_mac = talloc_memdup(sysinfo, pos, HWADDR_SIZE);
1161                         break;
1162                 }
1163         }
1164
1165         pos += HWADDR_SIZE;
1166         len -= HWADDR_SIZE;
1167
1168         rc = 0;
1169 out:
1170         return rc;
1171 }
1172
1173 static int pb_protocol_deserialise_config_interface(const char **buf,
1174                 unsigned int *len, struct interface_config *iface)
1175 {
1176         unsigned int tmp;
1177
1178         if (*len < sizeof(iface->hwaddr))
1179                 return -1;
1180
1181         memcpy(iface->hwaddr, *buf, sizeof(iface->hwaddr));
1182         *buf += sizeof(iface->hwaddr);
1183         *len -= sizeof(iface->hwaddr);
1184
1185         if (read_u32(buf, len, &tmp))
1186                 return -1;
1187         iface->ignore = !!tmp;
1188
1189         if (iface->ignore)
1190                 return 0;
1191
1192         if (read_u32(buf, len, &iface->method))
1193                 return -1;
1194
1195         if (iface->method == CONFIG_METHOD_STATIC) {
1196                 if (read_string(iface, buf, len, &iface->static_config.address))
1197                         return -1;
1198
1199                 if (read_string(iface, buf, len, &iface->static_config.gateway))
1200                         return -1;
1201
1202                 if (read_string(iface, buf, len, &iface->static_config.url))
1203                         return -1;
1204         }
1205
1206         if (read_u32(buf, len, &tmp))
1207                 return -1;
1208         iface->override = !!tmp;
1209
1210         return 0;
1211 }
1212
1213 int pb_protocol_deserialise_config(struct config *config,
1214                 const struct pb_protocol_message *message)
1215 {
1216         unsigned int len, i, tmp;
1217         const char *pos;
1218         int rc = -1;
1219         char *str;
1220
1221         len = message->payload_len;
1222         pos = message->payload;
1223
1224         if (read_u32(&pos, &len, &tmp))
1225                 goto out;
1226         config->autoboot_enabled = !!tmp;
1227
1228         if (read_u32(&pos, &len, &config->autoboot_timeout_sec))
1229                 goto out;
1230
1231         if (read_u32(&pos, &len, &tmp))
1232                 goto out;
1233         config->safe_mode = !!tmp;
1234
1235         if (read_u32(&pos, &len, &config->network.n_interfaces))
1236                 goto out;
1237
1238         config->network.interfaces = talloc_array(config,
1239                         struct interface_config *, config->network.n_interfaces);
1240
1241         for (i = 0; i < config->network.n_interfaces; i++) {
1242                 struct interface_config *iface = talloc_zero(
1243                                 config->network.interfaces,
1244                                 struct interface_config);
1245                 if (pb_protocol_deserialise_config_interface(&pos, &len, iface))
1246                         goto out;
1247                 config->network.interfaces[i] = iface;
1248         }
1249
1250         if (read_u32(&pos, &len, &config->network.n_dns_servers))
1251                 goto out;
1252         config->network.dns_servers = talloc_array(config, const char *,
1253                         config->network.n_dns_servers);
1254
1255         for (i = 0; i < config->network.n_dns_servers; i++) {
1256                 if (read_string(config->network.dns_servers, &pos, &len, &str))
1257                         goto out;
1258                 config->network.dns_servers[i] = str;
1259         }
1260
1261         if (read_string(config, &pos, &len, &str))
1262                 goto out;
1263         config->http_proxy = str;
1264         if (read_string(config, &pos, &len, &str))
1265                 goto out;
1266         config->https_proxy = str;
1267
1268         if (read_u32(&pos, &len, &config->n_autoboot_opts))
1269                 goto out;
1270         config->autoboot_opts = talloc_array(config, struct autoboot_option,
1271                         config->n_autoboot_opts);
1272
1273         for (i = 0; i < config->n_autoboot_opts; i++) {
1274                 if (read_u32(&pos, &len, &tmp))
1275                         goto out;
1276                 config->autoboot_opts[i].boot_type = (int)tmp;
1277                 if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE) {
1278                         if (read_u32(&pos, &len, &tmp))
1279                                 goto out;
1280                         config->autoboot_opts[i].type = tmp;
1281                 } else {
1282                         if (read_string(config, &pos, &len, &str))
1283                                 goto out;
1284                         config->autoboot_opts[i].uuid = str;
1285                 }
1286         }
1287
1288         if (read_u32(&pos, &len, &config->ipmi_bootdev))
1289                 goto out;
1290         if (read_u32(&pos, &len, &tmp))
1291                 goto out;
1292         config->ipmi_bootdev_persistent = !!tmp;
1293         if (read_u32(&pos, &len, &tmp))
1294                 goto out;
1295         config->ipmi_bootdev_mailbox = !!tmp;
1296
1297         if (read_u32(&pos, &len, &tmp))
1298                 goto out;
1299         config->allow_writes = !!tmp;
1300
1301         if (read_u32(&pos, &len, &config->n_consoles))
1302                 goto out;
1303
1304         config->consoles = talloc_array(config, char *, config->n_consoles);
1305         for (i = 0; i < config->n_consoles; i++) {
1306                 if (read_string(config->consoles, &pos, &len, &str))
1307                         goto out;
1308                 config->consoles[i] = str;
1309         }
1310
1311         if (read_string(config, &pos, &len, &str))
1312                 goto out;
1313
1314         config->boot_console = str;
1315
1316         if (read_u32(&pos, &len, &tmp))
1317                 goto out;
1318         config->manual_console = !!tmp;
1319
1320         if (read_string(config, &pos, &len, &str))
1321                 goto out;
1322
1323         config->lang = str;
1324
1325         rc = 0;
1326
1327 out:
1328         return rc;
1329 }
1330
1331 int pb_protocol_deserialise_plugin_option(struct plugin_option *opt,
1332                 const struct pb_protocol_message *message)
1333 {
1334         unsigned int len, i, tmp;
1335         const char *pos;
1336         int rc = -1;
1337         char *str;
1338
1339         len = message->payload_len;
1340         pos = message->payload;
1341
1342         if (read_string(opt, &pos, &len, &str))
1343                 goto out;
1344         opt->id = str;
1345
1346         if (read_string(opt, &pos, &len, &str))
1347                 goto out;
1348         opt->name = str;
1349
1350         if (read_string(opt, &pos, &len, &str))
1351                 goto out;
1352         opt->vendor = str;
1353
1354         if (read_string(opt, &pos, &len, &str))
1355                 goto out;
1356         opt->vendor_id = str;
1357
1358         if (read_string(opt, &pos, &len, &str))
1359                 goto out;
1360         opt->version = str;
1361
1362         if (read_string(opt, &pos, &len, &str))
1363                 goto out;
1364         opt->date = str;
1365
1366         if (read_string(opt, &pos, &len, &str))
1367                 goto out;
1368         opt->plugin_file = str;
1369
1370         if (read_u32(&pos, &len, &tmp))
1371                 goto out;
1372         opt->n_executables = tmp;
1373
1374         opt->executables = talloc_zero_array(opt, char *, opt->n_executables);
1375         if (!opt->executables)
1376                 goto out;
1377
1378         for (i = 0; i < opt->n_executables; i++) {
1379                 if (read_string(opt, &pos, &len, &str))
1380                         goto out;
1381                 opt->executables[i] = talloc_strdup(opt, str);
1382         }
1383
1384         rc = 0;
1385 out:
1386         return rc;
1387 }
1388
1389 int pb_protocol_deserialise_temp_autoboot(struct autoboot_option *opt,
1390                 const struct pb_protocol_message *message)
1391 {
1392         unsigned int len, tmp;
1393         const char *pos;
1394         int rc = -1;
1395         char *str;
1396
1397         len = message->payload_len;
1398         pos = message->payload;
1399
1400         if (read_u32(&pos, &len, &tmp))
1401                 goto out;
1402
1403         opt->boot_type = tmp;
1404         if (opt->boot_type == BOOT_DEVICE_TYPE) {
1405                 if (read_u32(&pos, &len, &tmp))
1406                         goto out;
1407                 opt->type = tmp;
1408
1409         } else if (opt->boot_type == BOOT_DEVICE_UUID) {
1410                 if (read_string(opt, &pos, &len, &str))
1411                         goto out;
1412                 opt->uuid = str;
1413
1414         } else {
1415                 return -1;
1416         }
1417
1418         rc = 0;
1419
1420 out:
1421         return rc;
1422 }
1423
1424 int pb_protocol_deserialise_authenticate(struct auth_message *msg,
1425                 const struct pb_protocol_message *message)
1426 {
1427         unsigned int len;
1428         const char *pos;
1429
1430         len = message->payload_len;
1431         pos = message->payload;
1432
1433         msg->op = *(enum auth_msg_type *)pos;
1434         pos += sizeof(enum auth_msg_type);
1435
1436         switch (msg->op) {
1437         case AUTH_MSG_REQUEST:
1438                 if (read_string(msg, &pos, &len, &msg->password))
1439                         return -1;
1440                 break;
1441         case AUTH_MSG_RESPONSE:
1442                 msg->authenticated = *(bool *)pos;
1443                 pos += sizeof(bool);
1444                 break;
1445         case AUTH_MSG_SET:
1446                 if (read_string(msg, &pos, &len, &msg->set_password.password))
1447                         return -1;
1448                 if (read_string(msg, &pos, &len,
1449                                         &msg->set_password.new_password))
1450                         return -1;
1451                 break;
1452         case AUTH_MSG_DECRYPT:
1453                 if (read_string(msg, &pos, &len, &msg->decrypt_dev.password))
1454                         return -1;
1455                 if (read_string(msg, &pos, &len,
1456                                         &msg->decrypt_dev.device_id))
1457                         return -1;
1458                 break;
1459         default:
1460                 pb_log("%s: unable to parse\n", __func__);
1461                 return -1;
1462         }
1463
1464         return 0;
1465 }