commands-wms.c

   1 #include "qmi-message.h"
   2
   3 #define MIN(a,b) (((a)<(b))?(a):(b))
   4 #define CEILDIV(x,y) (((x) + (y) - 1) / (y))
   5
   6 static void cmd_wms_list_messages_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
   7 {
   8         struct qmi_wms_list_messages_response res;
   9         void *c;
  10         int i;
  11
  12         qmi_parse_wms_list_messages_response(msg, &res);
  13         c = blobmsg_open_array(&status, NULL);
  14         for (i = 0; i < res.data.message_list_n; i++)
  15                 blobmsg_add_u32(&status, NULL, res.data.message_list[i].memory_index);
  16
  17         blobmsg_close_array(&status, c);
  18 }
  19
  20 static enum qmi_cmd_result
  21 cmd_wms_list_messages_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
  22 {
  23         static struct qmi_wms_list_messages_request mreq = {
  24                 QMI_INIT(storage_type, QMI_WMS_STORAGE_TYPE_UIM),
  25                 QMI_INIT(message_tag, QMI_WMS_MESSAGE_TAG_TYPE_MT_NOT_READ),
  26         };
  27
  28         qmi_set_wms_list_messages_request(msg, &mreq);
  29
  30         return QMI_CMD_REQUEST;
  31 }
  32
  33 static int
  34 put_unicode_char(char *dest, uint16_t c)
  35 {
  36         if (c < 0x80) {
  37                 *dest = c;
  38                 return 1;
  39         } else if (c < 0x800) {
  40                 *(dest++) = 0xc0 | ((c >> 6) & 0x1f);
  41                 *dest = 0x80 | (c & 0x3f);
  42                 return 2;
  43         } else {
  44                 *(dest++) = 0xe0 | ((c >> 12) & 0xf);
  45                 *(dest++) = 0x80 | ((c >> 6) & 0x3f);
  46                 *dest = 0x80 | (c & 0x3f);
  47                 return 3;
  48         }
  49 }
  50
  51
  52 static int
  53 pdu_decode_7bit_char(char *dest, int len, unsigned char c, bool *escape)
  54 {
  55         uint16_t conv_0x20[] = {
  56                 0x0040, 0x00A3, 0x0024, 0x00A5, 0x00E8, 0x00E9, 0x00F9, 0x00EC,
  57                 0x00F2, 0x00E7, 0x000A, 0x00D8, 0x00F8, 0x000D, 0x00C5, 0x00E5,
  58                 0x0394, 0x005F, 0x03A6, 0x0393, 0x039B, 0x03A9, 0x03A0, 0x03A8,
  59                 0x03A3, 0x0398, 0x039E, 0x00A0, 0x00C6, 0x00E6, 0x00DF, 0x00C9,
  60         };
  61         uint16_t conv_0x5b[] = {
  62                 0x00C4, 0x00D6, 0x00D1, 0x00DC, 0x00A7, 0x00BF,
  63         };
  64         uint16_t conv_0x7b[] = {
  65                 0x00E4, 0x00F6, 0x00F1, 0x00FC, 0x00E0
  66         };
  67         int cur_len = 0;
  68         uint16_t outc;
  69
  70         fprintf(stderr, " %02x", c);
  71         dest += len;
  72         if (*escape) {
  73                 switch(c) {
  74                 case 0x0A:
  75                         *dest = 0x0C;
  76                         return 1;
  77                 case 0x14:
  78                         *dest = 0x5E;
  79                         return 1;
  80                 case 0x28:
  81                         *dest = 0x7B;
  82                         return 1;
  83                 case 0x29:
  84                         *dest = 0x7D;
  85                         return 1;
  86                 case 0x2F:
  87                         *dest = 0x5C;
  88                         return 1;
  89                 case 0x3C:
  90                         *dest = 0x5B;
  91                         return 1;
  92                 case 0x3D:
  93                         *dest = 0x7E;
  94                         return 1;
  95                 case 0x3E:
  96                         *dest = 0x5D;
  97                         return 1;
  98                 case 0x40:
  99                         *dest = 0x7C;
 100                         return 1;
 101                 case 0x65:
 102                         outc = 0x20AC;
 103                         goto out;
 104                 case 0x1B:
 105                         goto normal;
 106                 default:
 107                         /* invalid */
 108                         *(dest++) = conv_0x20[0x1B];
 109                         cur_len++;
 110                         goto normal;
 111                 }
 112         }
 113
 114         if (c == 0x1b) {
 115                 *escape = true;
 116                 return 0;
 117         }
 118
 119 normal:
 120         if (c < 0x20)
 121                 outc = conv_0x20[(int) c];
 122         else if (c == 0x40)
 123                 outc = 0x00A1;
 124         else if (c >= 0x5b && c <= 0x60)
 125                 outc = conv_0x5b[c - 0x5b];
 126         else if (c >= 0x7b && c <= 0x7f)
 127                 outc = conv_0x7b[c - 0x7b];
 128         else
 129                 outc = c;
 130
 131 out:
 132         return cur_len + put_unicode_char(dest, outc);
 133 }
 134
 135 static int
 136 pdu_decode_7bit_str(char *dest, const unsigned char *data, int data_len, int bit_offset)
 137 {
 138         bool escape = false;
 139         int len = 0;
 140         int i;
 141
 142         fprintf(stderr, "Raw text:");
 143         for (i = 0; i < data_len; i++) {
 144                 int pos = (i + bit_offset) % 7;
 145
 146                 if (pos == 0) {
 147                         len += pdu_decode_7bit_char(dest, len, data[i] & 0x7f, &escape);
 148                 } else {
 149                         if (i)
 150                                 len += pdu_decode_7bit_char(dest, len,
 151                                                             (data[i - 1] >> (7 + 1 - pos)) |
 152                                                             ((data[i] << pos) & 0x7f), &escape);
 153
 154                         if (pos == 6)
 155                                 len += pdu_decode_7bit_char(dest, len, (data[i] >> 1) & 0x7f,
 156                                                             &escape);
 157                 }
 158         }
 159         dest[len] = 0;
 160         fprintf(stderr, "\n");
 161         return len;
 162 }
 163
 164 static int decode_udh(const unsigned char *data)
 165 {
 166         const unsigned char *end;
 167         unsigned int type, len, udh_len;
 168
 169         udh_len = *(data++);
 170         end = data + udh_len;
 171         while (data < end) {
 172                 const unsigned char *val;
 173
 174                 type = data[0];
 175                 len = data[1];
 176                 val = &data[2];
 177                 data += 2 + len;
 178                 if (data > end)
 179                         break;
 180
 181                 switch (type) {
 182                 case 0:
 183                         blobmsg_add_u32(&status, "concat_ref", (uint32_t) val[0]);
 184                         blobmsg_add_u32(&status, "concat_part", (uint32_t) val[2]);
 185                         blobmsg_add_u32(&status, "concat_parts", (uint32_t) val[1]);
 186                         break;
 187                 default:
 188                         break;
 189                 }
 190         }
 191
 192         return udh_len + 1;
 193 }
 194
 195 static void decode_7bit_field(char *name, const unsigned char *data, int data_len, int bit_offset)
 196 {
 197         char *dest = blobmsg_alloc_string_buffer(&status, name, 3 * data_len + 2);
 198         pdu_decode_7bit_str(dest, data, CEILDIV(data_len * 7, 8), bit_offset);
 199         dest[data_len] = 0;
 200         blobmsg_add_string_buffer(&status);
 201 }
 202
 203 static char *pdu_add_semioctet(char *str, char val)
 204 {
 205         *str = '0' + (val & 0xf);
 206         if (*str <= '9')
 207                 str++;
 208
 209         *str = '0' + ((val >> 4) & 0xf);
 210         if (*str <= '9')
 211                 str++;
 212
 213         return str;
 214 }
 215
 216 static void
 217 pdu_decode_address(char *str, unsigned char *data, int len)
 218 {
 219         unsigned char toa;
 220
 221         toa = *(data++);
 222         switch (toa & 0x70) {
 223         case 0x50:
 224                 pdu_decode_7bit_str(str, data, len, 0);
 225                 return;
 226         case 0x10:
 227                 *(str++) = '+';
 228                 /* fall through */
 229         default:
 230                 while (len--) {
 231                         str = pdu_add_semioctet(str, *data);
 232                         data++;
 233                 }
 234         }
 235
 236         *str = 0;
 237 }
 238
 239 static void wms_decode_address(char *name, unsigned char *data, int len)
 240 {
 241         char *str = blobmsg_alloc_string_buffer(&status, name, len * 2 + 2);
 242         pdu_decode_address(str, data, len);
 243         blobmsg_add_string_buffer(&status);
 244 }
 245
 246 static void blobmsg_add_hex(struct blob_buf *buf, const char *name, unsigned const char *data, int len)
 247 {
 248         char* str = blobmsg_alloc_string_buffer(buf, name, len * 2 + 1);
 249         for (int i = 0; i < len; i++) {
 250                 str += sprintf(str, "%02x", data[i]);
 251         }
 252         blobmsg_add_string_buffer(buf);
 253 }
 254
 255 #define cmd_wms_delete_message_cb no_cb
 256 static enum qmi_cmd_result
 257 cmd_wms_delete_message_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 258 {
 259         char *err;
 260         int id;
 261
 262         id = strtoul(arg, &err, 10);
 263         if (err && *err) {
 264                 uqmi_add_error("Invalid message ID");
 265                 return QMI_CMD_EXIT;
 266         }
 267
 268         static struct qmi_wms_delete_request mreq = {
 269                 QMI_INIT(memory_storage, QMI_WMS_STORAGE_TYPE_UIM),
 270                 QMI_INIT(message_mode, QMI_WMS_MESSAGE_MODE_GSM_WCDMA),
 271         };
 272
 273         mreq.set.memory_index = 1;
 274         mreq.data.memory_index = id;
 275
 276         qmi_set_wms_delete_request(msg, &mreq);
 277
 278         return QMI_CMD_REQUEST;
 279 }
 280
 281
 282 static void cmd_wms_get_message_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
 283 {
 284         struct qmi_wms_raw_read_response res;
 285         unsigned char *data, *end;
 286         char *str;
 287         int cur_len;
 288         bool sent;
 289         unsigned char first, dcs;
 290         void *c;
 291
 292         qmi_parse_wms_raw_read_response(msg, &res);
 293         c = blobmsg_open_table(&status, NULL);
 294         data = (unsigned char *) res.data.raw_message_data.raw_data;
 295         end = data + res.data.raw_message_data.raw_data_n;
 296
 297         cur_len = *(data++);
 298         if (data + cur_len >= end)
 299                 goto error;
 300
 301         if (cur_len) {
 302                 wms_decode_address("smsc", data, cur_len - 1);
 303                 data += cur_len;
 304         }
 305
 306         if (data + 3 >= end)
 307                 goto error;
 308
 309         first = *(data++);
 310         sent = (first & 0x3) == 1;
 311         if (sent)
 312                 data++;
 313
 314         cur_len = *(data++);
 315         if (data + cur_len >= end)
 316                 goto error;
 317
 318         if (cur_len) {
 319                 cur_len = (cur_len + 1) / 2;
 320                 wms_decode_address(sent ? "receiver" : "sender", data, cur_len);
 321                 data += cur_len + 1;
 322         }
 323
 324         if (data + 3 >= end)
 325                 goto error;
 326
 327         /* Protocol ID */
 328         if (*(data++) != 0)
 329                 goto error;
 330
 331         /* Data Encoding */
 332         dcs = *(data++);
 333
 334         if (dcs & 0x10)
 335                 blobmsg_add_u32(&status, "class", (dcs & 3));
 336
 337         if (sent) {
 338                 /* Message validity */
 339                 data++;
 340         } else {
 341                 if (data + 6 >= end)
 342                         goto error;
 343
 344                 str = blobmsg_alloc_string_buffer(&status, "timestamp", 32);
 345
 346                 /* year */
 347                 *(str++) = '2';
 348                 *(str++) = '0';
 349                 str = pdu_add_semioctet(str, data[0]);
 350                 /* month */
 351                 *(str++) = '-';
 352                 str = pdu_add_semioctet(str, data[1]);
 353                 /* day */
 354                 *(str++) = '-';
 355                 str = pdu_add_semioctet(str, data[2]);
 356
 357                 /* hour */
 358                 *(str++) = ' ';
 359                 str = pdu_add_semioctet(str, data[3]);
 360                 /* minute */
 361                 *(str++) = ':';
 362                 str = pdu_add_semioctet(str, data[4]);
 363                 /* second */
 364                 *(str++) = ':';
 365                 str = pdu_add_semioctet(str, data[5]);
 366                 *str = 0;
 367
 368                 blobmsg_add_string_buffer(&status);
 369
 370                 data += 7;
 371         }
 372
 373         int message_len = *(data++);
 374         int udh_len = 0;
 375         int bit_offset = 0;
 376
 377         /* User Data Header */
 378         if (first & 0x40) {
 379                 udh_len = decode_udh(data);
 380                 data += udh_len;
 381                 bit_offset = udh_len % 7;
 382                 }
 383
 384         if (data >= end)
 385                 goto error;
 386
 387         switch(dcs & 0x0c) {
 388                 case 0x00:
 389                         /* 7 bit GSM alphabet */
 390                         message_len = message_len - CEILDIV(udh_len * 8, 7);
 391                         message_len = MIN(message_len, CEILDIV((end - data) * 8, 7));
 392                         decode_7bit_field("text", data, message_len, bit_offset);
 393                         break;
 394                 case 0x04:
 395                         /* 8 bit data */
 396                         message_len = MIN(message_len - udh_len, end - data);
 397                         blobmsg_add_hex(&status, "data", data, message_len);
 398                         break;
 399                 case 0x08:
 400                         /* 16 bit UCS-2 string */
 401                         message_len = MIN(message_len - udh_len, end - data);
 402                         blobmsg_add_hex(&status, "ucs-2", data, message_len);
 403                         break;
 404                 default:
 405                         goto error;
 406                 }
 407
 408         blobmsg_close_table(&status, c);
 409         return;
 410
 411 error:
 412         blobmsg_close_table(&status, c);
 413         fprintf(stderr, "There was an error reading message.\n");
 414 }
 415
 416 static enum qmi_cmd_result
 417 cmd_wms_get_message_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 418 {
 419         static struct qmi_wms_raw_read_request mreq = {
 420                 QMI_INIT_SEQUENCE(message_memory_storage_id,
 421                         .storage_type = QMI_WMS_STORAGE_TYPE_UIM,
 422                 ),
 423                 QMI_INIT(message_mode, QMI_WMS_MESSAGE_MODE_GSM_WCDMA),
 424         };
 425         char *err;
 426         int id;
 427
 428         id = strtoul(arg, &err, 10);
 429         if (err && *err) {
 430                 uqmi_add_error("Invalid message ID");
 431                 return QMI_CMD_EXIT;
 432         }
 433
 434         mreq.data.message_memory_storage_id.memory_index = id;
 435         qmi_set_wms_raw_read_request(msg, &mreq);
 436
 437         return QMI_CMD_REQUEST;
 438 }
 439
 440
 441 static void cmd_wms_get_raw_message_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
 442 {
 443         struct qmi_wms_raw_read_response res;
 444         unsigned char *data;
 445         char *str;
 446         int i;
 447
 448         qmi_parse_wms_raw_read_response(msg, &res);
 449         data = (unsigned char *) res.data.raw_message_data.raw_data;
 450         str = blobmsg_alloc_string_buffer(&status, NULL, res.data.raw_message_data.raw_data_n * 3);
 451         for (i = 0; i < res.data.raw_message_data.raw_data_n; i++) {
 452                 str += sprintf(str, &" %02x"[i ? 0 : 1], data[i]);
 453         }
 454         blobmsg_add_string_buffer(&status);
 455 }
 456
 457 #define cmd_wms_get_raw_message_prepare cmd_wms_get_message_prepare
 458
 459
 460 static struct {
 461         const char *smsc;
 462         const char *target;
 463         bool flash;
 464 } _send;
 465
 466
 467 #define cmd_wms_send_message_smsc_cb no_cb
 468 static enum qmi_cmd_result
 469 cmd_wms_send_message_smsc_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 470 {
 471         _send.smsc = arg;
 472         return QMI_CMD_DONE;
 473 }
 474
 475 #define cmd_wms_send_message_target_cb no_cb
 476 static enum qmi_cmd_result
 477 cmd_wms_send_message_target_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 478 {
 479         _send.target = arg;
 480         return QMI_CMD_DONE;
 481 }
 482
 483 #define cmd_wms_send_message_flash_cb no_cb
 484 static enum qmi_cmd_result
 485 cmd_wms_send_message_flash_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 486 {
 487         _send.flash = true;
 488         return QMI_CMD_DONE;
 489 }
 490
 491 static int
 492 pdu_encode_semioctet(unsigned char *dest, const char *str)
 493 {
 494         int len = 0;
 495         bool lower = true;
 496
 497         while (*str) {
 498                 char digit = *str - '0';
 499
 500                 if (lower)
 501                         dest[len] = 0xf0 | digit;
 502                 else
 503                         dest[len++] &= (digit << 4) | 0xf;
 504
 505                 lower = !lower;
 506                 str++;
 507         }
 508
 509         return len;
 510 }
 511
 512 static int
 513 pdu_encode_7bit_str(unsigned char *data, const char *str)
 514 {
 515         unsigned char c;
 516         int len = 0;
 517         int ofs = 0;
 518
 519         while(1) {
 520                 c = *(str++) & 0x7f;
 521                 if (!c)
 522                         break;
 523
 524                 switch(ofs) {
 525                 case 0:
 526                         data[len] = c;
 527                         break;
 528                 default:
 529                         data[len++] |= c << (8 - ofs);
 530                         data[len] = c >> ofs;
 531                         break;
 532                 }
 533
 534                 ofs = (ofs + 1) % 8;
 535         }
 536
 537         return len + 1;
 538 }
 539
 540 static int
 541 pdu_encode_number(unsigned char *dest, const char *str, bool smsc)
 542 {
 543         unsigned char format;
 544         bool ascii = false;
 545         int len = 0;
 546         int i;
 547
 548         dest[len++] = 0;
 549         if (*str == '+') {
 550                 str++;
 551                 format = 0x91;
 552         } else {
 553                 format = 0x81;
 554         }
 555
 556         for (i = 0; str[i]; i++) {
 557                 if (str[i] >= '0' || str[i] <= '9')
 558                         continue;
 559
 560                 ascii = true;
 561                 break;
 562         }
 563
 564         if (ascii)
 565                 format |= 0x40;
 566
 567         dest[len++] = format;
 568         if (!ascii)
 569                 len += pdu_encode_semioctet(&dest[len], str);
 570         else
 571                 len += pdu_encode_7bit_str(&dest[len], str);
 572
 573         if (smsc)
 574                 dest[0] = len - 1;
 575         else
 576                 dest[0] = strlen(str);
 577
 578         return len;
 579 }
 580
 581 static int
 582 pdu_encode_data(unsigned char *dest, const char *str)
 583 {
 584         int len = 0;
 585
 586         dest[len++] = 0;
 587         len += pdu_encode_7bit_str(&dest[len], str);
 588         dest[0] = len - 1;
 589
 590         return len;
 591 }
 592
 593 #define cmd_wms_send_message_cb no_cb
 594 static enum qmi_cmd_result
 595 cmd_wms_send_message_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 596 {
 597         static unsigned char buf[512];
 598         static struct qmi_wms_raw_send_request mreq = {
 599                 QMI_INIT_SEQUENCE(raw_message_data,
 600                         .format = QMI_WMS_MESSAGE_FORMAT_GSM_WCDMA_POINT_TO_POINT,
 601                         .raw_data = buf,
 602                 ),
 603         };
 604         unsigned char *cur = buf;
 605         unsigned char first_octet = 0x11;
 606         unsigned char protocol_id = 0x00;
 607         unsigned char dcs = 0x00;
 608
 609         if (!_send.smsc || !*_send.smsc || !_send.target || !*_send.target) {
 610                 uqmi_add_error("Missing argument");
 611                 return QMI_CMD_EXIT;
 612         }
 613
 614         if (strlen(_send.smsc) > 16 || strlen(_send.target) > 16 || strlen(arg) > 160) {
 615                 uqmi_add_error("Argument too long");
 616                 return QMI_CMD_EXIT;
 617         }
 618
 619         if (_send.flash)
 620                 dcs |= 0x10;
 621
 622         cur += pdu_encode_number(cur, _send.smsc, true);
 623         *(cur++) = first_octet;
 624         *(cur++) = 0; /* reference */
 625
 626         cur += pdu_encode_number(cur, _send.target, false);
 627         *(cur++) = protocol_id;
 628         *(cur++) = dcs;
 629
 630         *(cur++) = 0xff; /* validity */
 631         cur += pdu_encode_data(cur, arg);
 632
 633         mreq.data.raw_message_data.raw_data_n = cur - buf;
 634         qmi_set_wms_raw_send_request(msg, &mreq);
 635
 636         return QMI_CMD_REQUEST;
 637 }