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00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 180196 $")
00029
00030 #include <time.h>
00031 #include <math.h>
00032 #include <ctype.h>
00033
00034 #include "asterisk/ulaw.h"
00035 #include "asterisk/alaw.h"
00036 #include "asterisk/frame.h"
00037 #include "asterisk/channel.h"
00038 #include "asterisk/callerid.h"
00039 #include "asterisk/fskmodem.h"
00040 #include "asterisk/utils.h"
00041
00042 struct callerid_state {
00043 fsk_data fskd;
00044 char rawdata[256];
00045 short oldstuff[160];
00046 int oldlen;
00047 int pos;
00048 int type;
00049 int cksum;
00050 char name[64];
00051 char number[64];
00052 int flags;
00053 int sawflag;
00054 int len;
00055
00056 int skipflag;
00057 unsigned short crc;
00058 };
00059
00060
00061 float cid_dr[4], cid_di[4];
00062 float clidsb = 8000.0 / 1200.0;
00063 float sasdr, sasdi;
00064 float casdr1, casdi1, casdr2, casdi2;
00065
00066 #define CALLERID_SPACE 2200.0
00067 #define CALLERID_MARK 1200.0
00068 #define SAS_FREQ 440.0
00069 #define CAS_FREQ1 2130.0
00070 #define CAS_FREQ2 2750.0
00071
00072 #define AST_CALLERID_UNKNOWN "<unknown>"
00073
00074 static inline void gen_tones(unsigned char *buf, int len, int codec, float ddr1, float ddi1, float ddr2, float ddi2, float *cr1, float *ci1, float *cr2, float *ci2)
00075 {
00076 int x;
00077 float t;
00078 for (x = 0; x < len; x++) {
00079 t = *cr1 * ddr1 - *ci1 * ddi1;
00080 *ci1 = *cr1 * ddi1 + *ci1 * ddr1;
00081 *cr1 = t;
00082 t = 2.0 - (*cr1 * *cr1 + *ci1 * *ci1);
00083 *cr1 *= t;
00084 *ci1 *= t;
00085
00086 t = *cr2 * ddr2 - *ci2 * ddi2;
00087 *ci2 = *cr2 * ddi2 + *ci2 * ddr2;
00088 *cr2 = t;
00089 t = 2.0 - (*cr2 * *cr2 + *ci2 * *ci2);
00090 *cr2 *= t;
00091 *ci2 *= t;
00092 buf[x] = AST_LIN2X((*cr1 + *cr2) * 2048.0);
00093 }
00094 }
00095
00096 static inline void gen_tone(unsigned char *buf, int len, int codec, float ddr1, float ddi1, float *cr1, float *ci1)
00097 {
00098 int x;
00099 float t;
00100 for (x = 0; x < len; x++) {
00101 t = *cr1 * ddr1 - *ci1 * ddi1;
00102 *ci1 = *cr1 * ddi1 + *ci1 * ddr1;
00103 *cr1 = t;
00104 t = 2.0 - (*cr1 * *cr1 + *ci1 * *ci1);
00105 *cr1 *= t;
00106 *ci1 *= t;
00107 buf[x] = AST_LIN2X(*cr1 * 8192.0);
00108 }
00109 }
00110
00111
00112 void callerid_init(void)
00113 {
00114 cid_dr[0] = cos(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
00115 cid_di[0] = sin(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
00116 cid_dr[1] = cos(CALLERID_MARK * 2.0 * M_PI / 8000.0);
00117 cid_di[1] = sin(CALLERID_MARK * 2.0 * M_PI / 8000.0);
00118 sasdr = cos(SAS_FREQ * 2.0 * M_PI / 8000.0);
00119 sasdi = sin(SAS_FREQ * 2.0 * M_PI / 8000.0);
00120 casdr1 = cos(CAS_FREQ1 * 2.0 * M_PI / 8000.0);
00121 casdi1 = sin(CAS_FREQ1 * 2.0 * M_PI / 8000.0);
00122 casdr2 = cos(CAS_FREQ2 * 2.0 * M_PI / 8000.0);
00123 casdi2 = sin(CAS_FREQ2 * 2.0 * M_PI / 8000.0);
00124 }
00125
00126 struct callerid_state *callerid_new(int cid_signalling)
00127 {
00128 struct callerid_state *cid;
00129
00130 if ((cid = ast_calloc(1, sizeof(*cid)))) {
00131 #ifdef INTEGER_CALLERID
00132 cid->fskd.ispb = 7;
00133
00134 cid->fskd.pllispb = (int)(8000 * 32 / 1200);
00135 cid->fskd.pllids = cid->fskd.pllispb/32;
00136 cid->fskd.pllispb2 = cid->fskd.pllispb/2;
00137
00138 cid->fskd.icont = 0;
00139
00140 cid->fskd.nbit = 8;
00141 cid->fskd.instop = 1;
00142
00143 cid->fskd.bw = 1;
00144 if (cid_signalling == 2) {
00145 cid->fskd.f_mark_idx = 4;
00146 cid->fskd.f_space_idx = 5;
00147 } else {
00148 cid->fskd.f_mark_idx = 2;
00149 cid->fskd.f_space_idx = 3;
00150 }
00151
00152
00153
00154
00155 cid->flags = CID_UNKNOWN_NAME | CID_UNKNOWN_NUMBER;
00156
00157
00158 fskmodem_init(&cid->fskd);
00159 #else
00160 cid->fskd.spb = 7.0;
00161
00162 cid->fskd.nbit = 8;
00163 cid->fskd.nstop = 1.0;
00164
00165 cid->fskd.bw = 1;
00166 if (cid_signalling == 2) {
00167 cid->fskd.f_mark_idx = 4;
00168 cid->fskd.f_space_idx = 5;
00169 } else {
00170 cid->fskd.f_mark_idx = 2;
00171 cid->fskd.f_space_idx = 3;
00172 }
00173
00174
00175
00176
00177 cid->flags = CID_UNKNOWN_NAME | CID_UNKNOWN_NUMBER;
00178
00179 #endif
00180 }
00181
00182 return cid;
00183 }
00184
00185 void callerid_get(struct callerid_state *cid, char **name, char **number, int *flags)
00186 {
00187 *flags = cid->flags;
00188 if (cid->flags & (CID_UNKNOWN_NAME | CID_PRIVATE_NAME))
00189 *name = NULL;
00190 else
00191 *name = cid->name;
00192 if (cid->flags & (CID_UNKNOWN_NUMBER | CID_PRIVATE_NUMBER))
00193 *number = NULL;
00194 else
00195 *number = cid->number;
00196 }
00197
00198 void callerid_get_dtmf(char *cidstring, char *number, int *flags)
00199 {
00200 int i;
00201 int code;
00202
00203
00204 number[0] = 0;
00205
00206 if (strlen(cidstring) < 2) {
00207 ast_debug(1, "No cid detected\n");
00208 *flags = CID_UNKNOWN_NUMBER;
00209 return;
00210 }
00211
00212
00213 if (cidstring[0] == 'B') {
00214
00215 code = atoi(&cidstring[1]);
00216 if (code == 0)
00217 *flags = CID_UNKNOWN_NUMBER;
00218 else if (code == 10)
00219 *flags = CID_PRIVATE_NUMBER;
00220 else
00221 ast_debug(1, "Unknown DTMF code %d\n", code);
00222 } else if (cidstring[0] == 'D' && cidstring[2] == '#') {
00223
00224 if (cidstring[1] == '1')
00225 *flags = CID_PRIVATE_NUMBER;
00226 if (cidstring[1] == '2' || cidstring[1] == '3')
00227 *flags = CID_UNKNOWN_NUMBER;
00228 } else if (cidstring[0] == 'D' || cidstring[0] == 'A') {
00229
00230 for (i = 1; i < strlen(cidstring); i++) {
00231 if (cidstring[i] == 'C' || cidstring[i] == '#')
00232 break;
00233 if (isdigit(cidstring[i]))
00234 number[i-1] = cidstring[i];
00235 else
00236 ast_debug(1, "Unknown CID digit '%c'\n",
00237 cidstring[i]);
00238 }
00239 number[i-1] = 0;
00240 } else if (isdigit(cidstring[0])) {
00241
00242
00243 ast_log(LOG_WARNING, "Couldn't detect start-character. CID "
00244 "parsing might be unreliable\n");
00245 for (i = 0; i < strlen(cidstring); i++) {
00246 if (isdigit(cidstring[i]))
00247 number[i] = cidstring[i];
00248 else
00249 break;
00250 }
00251 number[i] = 0;
00252 } else {
00253 ast_debug(1, "Unknown CID protocol, start digit '%c'\n", cidstring[0]);
00254 *flags = CID_UNKNOWN_NUMBER;
00255 }
00256 }
00257
00258 int ast_gen_cas(unsigned char *outbuf, int sendsas, int len, int codec)
00259 {
00260 int pos = 0;
00261 int saslen = 2400;
00262 float cr1 = 1.0;
00263 float ci1 = 0.0;
00264 float cr2 = 1.0;
00265 float ci2 = 0.0;
00266
00267 if (sendsas) {
00268 if (len < saslen)
00269 return -1;
00270 gen_tone(outbuf, saslen, codec, sasdr, sasdi, &cr1, &ci1);
00271 len -= saslen;
00272 pos += saslen;
00273 cr2 = cr1;
00274 ci2 = ci1;
00275 }
00276 gen_tones(outbuf + pos, len, codec, casdr1, casdi1, casdr2, casdi2, &cr1, &ci1, &cr2, &ci2);
00277 return 0;
00278 }
00279
00280 static unsigned short calc_crc(unsigned short crc, unsigned char data)
00281 {
00282 unsigned int i, j, org, dst;
00283 org = data;
00284 dst = 0;
00285
00286 for (i = 0; i < CHAR_BIT; i++) {
00287 org <<= 1;
00288 dst >>= 1;
00289 if (org & 0x100)
00290 dst |= 0x80;
00291 }
00292 data = (unsigned char) dst;
00293 crc ^= (unsigned int) data << (16 - CHAR_BIT);
00294 for (j = 0; j < CHAR_BIT; j++) {
00295 if (crc & 0x8000U)
00296 crc = (crc << 1) ^ 0x1021U ;
00297 else
00298 crc <<= 1 ;
00299 }
00300 return crc;
00301 }
00302
00303 int callerid_feed_jp(struct callerid_state *cid, unsigned char *ubuf, int len, int codec)
00304 {
00305 int mylen = len;
00306 int olen;
00307 int b = 'X';
00308 int b2;
00309 int res;
00310 int x;
00311 short *buf;
00312
00313 buf = alloca(2 * len + cid->oldlen);
00314
00315 memcpy(buf, cid->oldstuff, cid->oldlen);
00316 mylen += cid->oldlen / 2;
00317
00318 for (x = 0; x < len; x++)
00319 buf[x+cid->oldlen/2] = AST_XLAW(ubuf[x]);
00320
00321 while (mylen >= 160) {
00322 b = b2 = 0;
00323 olen = mylen;
00324 res = fsk_serial(&cid->fskd, buf, &mylen, &b);
00325
00326 if (mylen < 0) {
00327 ast_log(LOG_ERROR, "No start bit found in fsk data.\n");
00328 return -1;
00329 }
00330
00331 buf += (olen - mylen);
00332
00333 if (res < 0) {
00334 ast_log(LOG_NOTICE, "fsk_serial failed\n");
00335 return -1;
00336 }
00337
00338 if (res == 1) {
00339 b2 = b;
00340 b &= 0x7f;
00341
00342
00343 if (cid->sawflag > 1)
00344 cid->crc = calc_crc(cid->crc, (unsigned char) b2);
00345
00346
00347 if (b > 0xff)
00348 continue;
00349
00350
00351 if (cid->sawflag > 0) {
00352 if (cid->sawflag != 5 && cid->skipflag == 0 && b == 0x10) {
00353 cid->skipflag = 1 ;
00354 continue ;
00355 }
00356 }
00357 if (cid->skipflag == 1)
00358 cid->skipflag = 0 ;
00359
00360
00361 switch (cid->sawflag) {
00362 case 0:
00363 if (b == 0x10) {
00364 cid->sawflag = 1;
00365 cid->skipflag = 0;
00366 cid->crc = 0;
00367 }
00368 break;
00369 case 1:
00370 if (b == 0x01)
00371 cid->sawflag = 2;
00372 break ;
00373 case 2:
00374 if (b == 0x07)
00375 cid->sawflag = 3;
00376 break;
00377 case 3:
00378 if (b == 0x02)
00379 cid->sawflag = 4;
00380 break;
00381 case 4:
00382 if (b == 0x40)
00383 cid->sawflag = 5;
00384 break;
00385 case 5:
00386 cid->sawflag = 6;
00387 break;
00388 case 6:
00389 cid->sawflag = 7;
00390 cid->pos = 0;
00391 cid->rawdata[cid->pos++] = b;
00392 break;
00393 case 7:
00394 cid->sawflag = 8;
00395 cid->len = b;
00396 if ((cid->len+2) >= sizeof(cid->rawdata)) {
00397 ast_log(LOG_WARNING, "too long caller id string\n") ;
00398 return -1;
00399 }
00400 cid->rawdata[cid->pos++] = b;
00401 break;
00402 case 8:
00403 cid->rawdata[cid->pos++] = b;
00404 cid->len--;
00405 if (cid->len<=0) {
00406 cid->rawdata[cid->pos] = '\0';
00407 cid->sawflag = 9;
00408 }
00409 break;
00410 case 9:
00411 cid->sawflag = 10;
00412 break;
00413 case 10:
00414 cid->sawflag = 11;
00415 break;
00416 case 11:
00417 cid->sawflag = 12;
00418 if (cid->crc != 0) {
00419 ast_log(LOG_WARNING, "crc checksum error\n") ;
00420 return -1;
00421 }
00422
00423 for (x = 0; x < cid->pos;) {
00424 switch (cid->rawdata[x++]) {
00425 case 0x02:
00426 cid->number[0] = '\0';
00427 cid->name[0] = '\0';
00428 cid->flags = 0;
00429 res = cid->rawdata[x++];
00430 ast_copy_string(cid->number, &cid->rawdata[x], res+1);
00431 x += res;
00432 break;
00433 case 0x21:
00434
00435 x++;
00436
00437 switch (cid->rawdata[x]) {
00438 case 0x00:
00439 case 0x01:
00440 case 0x02:
00441 case 0x03:
00442 case 0x04:
00443 case 0x06:
00444 case 0x07:
00445 default:
00446 ast_debug(2, "cid info:#1=%X\n", cid->rawdata[x]);
00447 break ;
00448 }
00449 x++;
00450
00451 x++;
00452
00453 switch (cid->rawdata[x]) {
00454 case 0x00:
00455 case 0x01:
00456 case 0x03:
00457 case 0x04:
00458 case 0x08:
00459 case 0x09:
00460 case 0x05:
00461 default:
00462 ast_debug(2, "cid info:#2=%X\n", cid->rawdata[x]);
00463 break ;
00464 }
00465 x++;
00466 break ;
00467 case 0x04:
00468
00469 x++;
00470
00471 switch (cid->rawdata[x]) {
00472 case 'P':
00473 case 'O':
00474 case 'C':
00475 case 'S':
00476 cid->flags |= CID_UNKNOWN_NUMBER;
00477 ast_debug(2, "no cid reason:%c\n", cid->rawdata[x]);
00478 break ;
00479 }
00480 x++;
00481 break ;
00482 case 0x09:
00483
00484 res = cid->rawdata[x++];
00485
00486 x += res;
00487 break ;
00488 case 0x22:
00489
00490 x++;
00491
00492 switch (cid->rawdata[x]) {
00493 case 0x00:
00494 case 0x01:
00495 case 0x02:
00496 case 0x03:
00497 case 0x04:
00498 case 0x06:
00499 case 0x07:
00500 default:
00501 if (option_debug > 1)
00502 ast_log(LOG_NOTICE, "did info:#1=%X\n", cid->rawdata[x]);
00503 break ;
00504 }
00505 x++;
00506
00507 x++;
00508
00509 switch (cid->rawdata[x]) {
00510 case 0x00:
00511 case 0x01:
00512 case 0x03:
00513 case 0x04:
00514 case 0x08:
00515 case 0x09:
00516 case 0x05:
00517 default:
00518 ast_debug(2, "did info:#2=%X\n", cid->rawdata[x]);
00519 break ;
00520 }
00521 x++;
00522 break ;
00523 }
00524 }
00525 return 1;
00526 break;
00527 default:
00528 ast_log(LOG_ERROR, "invalid value in sawflag %d\n", cid->sawflag);
00529 }
00530 }
00531 }
00532 if (mylen) {
00533 memcpy(cid->oldstuff, buf, mylen * 2);
00534 cid->oldlen = mylen * 2;
00535 } else
00536 cid->oldlen = 0;
00537
00538 return 0;
00539 }
00540
00541
00542 int callerid_feed(struct callerid_state *cid, unsigned char *ubuf, int len, int codec)
00543 {
00544 int mylen = len;
00545 int olen;
00546 int b = 'X';
00547 int res;
00548 int x;
00549 short *buf;
00550
00551 buf = alloca(2 * len + cid->oldlen);
00552
00553 memcpy(buf, cid->oldstuff, cid->oldlen);
00554 mylen += cid->oldlen/2;
00555
00556 for (x = 0; x < len; x++)
00557 buf[x+cid->oldlen/2] = AST_XLAW(ubuf[x]);
00558 while (mylen >= 160) {
00559 olen = mylen;
00560 res = fsk_serial(&cid->fskd, buf, &mylen, &b);
00561 if (mylen < 0) {
00562 ast_log(LOG_ERROR, "No start bit found in fsk data.\n");
00563 return -1;
00564 }
00565 buf += (olen - mylen);
00566 if (res < 0) {
00567 ast_log(LOG_NOTICE, "fsk_serial failed\n");
00568 return -1;
00569 }
00570 if (res == 1) {
00571
00572 if (b > 0xff)
00573 continue;
00574 switch (cid->sawflag) {
00575 case 0:
00576 if (b == 'U')
00577 cid->sawflag = 2;
00578 break;
00579 case 2:
00580 if ((b == 0x04) || (b == 0x80) || (b == 0x06) || (b == 0x82)) {
00581 cid->type = b;
00582 cid->sawflag = 3;
00583 cid->cksum = b;
00584 }
00585 break;
00586 case 3:
00587
00588 cid->sawflag = 4;
00589 cid->len = b;
00590 cid->pos = 0;
00591 cid->cksum += b;
00592 break;
00593 case 4:
00594 if (cid->pos >= 128) {
00595 ast_log(LOG_WARNING, "Caller ID too long???\n");
00596 return -1;
00597 }
00598 cid->rawdata[cid->pos++] = b;
00599 cid->len--;
00600 cid->cksum += b;
00601 if (!cid->len) {
00602 cid->rawdata[cid->pos] = '\0';
00603 cid->sawflag = 5;
00604 }
00605 break;
00606 case 5:
00607 if (b != (256 - (cid->cksum & 0xff))) {
00608 ast_log(LOG_NOTICE, "Caller*ID failed checksum\n");
00609
00610 cid->sawflag = 0;
00611 break;
00612 }
00613
00614 cid->number[0] = '\0';
00615 cid->name[0] = '\0';
00616
00617 cid->flags = 0;
00618
00619 if ((cid->type == 0x80) || (cid->type == 0x82)) {
00620
00621
00622 for (x = 0; x < cid->pos;) {
00623 switch (cid->rawdata[x++]) {
00624 case 1:
00625
00626 break;
00627 case 2:
00628 case 3:
00629 case 4:
00630 res = cid->rawdata[x];
00631 if (res > 32) {
00632 ast_log(LOG_NOTICE, "Truncating long caller ID number from %d bytes to 32\n", cid->rawdata[x]);
00633 res = 32;
00634 }
00635 if (ast_strlen_zero(cid->number)) {
00636 memcpy(cid->number, cid->rawdata + x + 1, res);
00637
00638 cid->number[res] = '\0';
00639 }
00640 break;
00641 case 6:
00642 break;
00643 case 7:
00644 case 8:
00645 res = cid->rawdata[x];
00646 if (res > 32) {
00647 ast_log(LOG_NOTICE, "Truncating long caller ID name from %d bytes to 32\n", cid->rawdata[x]);
00648 res = 32;
00649 }
00650 memcpy(cid->name, cid->rawdata + x + 1, res);
00651 cid->name[res] = '\0';
00652 break;
00653 case 11:
00654 res = cid->rawdata[x + 1];
00655 if (res)
00656 cid->flags |= CID_MSGWAITING;
00657 else
00658 cid->flags |= CID_NOMSGWAITING;
00659 break;
00660 case 17:
00661 case 19:
00662 case 22:
00663 break;
00664 default:
00665 ast_log(LOG_NOTICE, "Unknown IE %d\n", cid->rawdata[x - 1]);
00666 }
00667 res = cid->rawdata[x];
00668 if (0 > res){
00669 ast_log(LOG_NOTICE, "IE %d has bad field length of %d at offset %d\n", cid->rawdata[x-1], cid->rawdata[x], x);
00670
00671 cid->sawflag = 0;
00672 break;
00673 }
00674 x += cid->rawdata[x];
00675 x++;
00676 }
00677 } else if (cid->type == 0x6) {
00678
00679 if (cid->rawdata[2] == 0x42) {
00680 cid->flags |= CID_MSGWAITING;
00681 } else if (cid->rawdata[2] == 0x6f) {
00682 cid->flags |= CID_NOMSGWAITING;
00683 }
00684 } else {
00685
00686 ast_copy_string(cid->number, cid->rawdata + 8, sizeof(cid->number));
00687 }
00688 if (!strcmp(cid->number, "P")) {
00689 strcpy(cid->number, "");
00690 cid->flags |= CID_PRIVATE_NUMBER;
00691 } else if (!strcmp(cid->number, "O") || ast_strlen_zero(cid->number)) {
00692 strcpy(cid->number, "");
00693 cid->flags |= CID_UNKNOWN_NUMBER;
00694 }
00695 if (!strcmp(cid->name, "P")) {
00696 strcpy(cid->name, "");
00697 cid->flags |= CID_PRIVATE_NAME;
00698 } else if (!strcmp(cid->name, "O") || ast_strlen_zero(cid->name)) {
00699 strcpy(cid->name, "");
00700 cid->flags |= CID_UNKNOWN_NAME;
00701 }
00702 return 1;
00703 break;
00704 default:
00705 ast_log(LOG_ERROR, "Dunno what to do with a digit in sawflag %d\n", cid->sawflag);
00706 }
00707 }
00708 }
00709 if (mylen) {
00710 memcpy(cid->oldstuff, buf, mylen * 2);
00711 cid->oldlen = mylen * 2;
00712 } else
00713 cid->oldlen = 0;
00714
00715 return 0;
00716 }
00717
00718 void callerid_free(struct callerid_state *cid)
00719 {
00720 ast_free(cid);
00721 }
00722
00723 static int callerid_genmsg(char *msg, int size, const char *number, const char *name, int flags)
00724 {
00725 struct timeval tv = ast_tvnow();
00726 struct ast_tm tm;
00727 char *ptr;
00728 int res;
00729 int i, x;
00730
00731
00732 ast_localtime(&tv, &tm, NULL);
00733
00734 ptr = msg;
00735
00736
00737 res = snprintf(ptr, size, "\001\010%02d%02d%02d%02d", tm.tm_mon + 1,
00738 tm.tm_mday, tm.tm_hour, tm.tm_min);
00739 size -= res;
00740 ptr += res;
00741 if (ast_strlen_zero(number) || (flags & CID_UNKNOWN_NUMBER)) {
00742
00743 res = snprintf(ptr, size, "\004\001O");
00744 size -= res;
00745 ptr += res;
00746 } else if (flags & CID_PRIVATE_NUMBER) {
00747
00748 res = snprintf(ptr, size, "\004\001P");
00749 size -= res;
00750 ptr += res;
00751 } else {
00752
00753 i = strlen(number);
00754 if (i > 16)
00755 i = 16;
00756 res = snprintf(ptr, size, "\002%c", i);
00757 size -= res;
00758 ptr += res;
00759 for (x = 0; x < i; x++)
00760 ptr[x] = number[x];
00761 ptr[i] = '\0';
00762 ptr += i;
00763 size -= i;
00764 }
00765
00766 if (ast_strlen_zero(name) || (flags & CID_UNKNOWN_NAME)) {
00767
00768 res = snprintf(ptr, size, "\010\001O");
00769 size -= res;
00770 ptr += res;
00771 } else if (flags & CID_PRIVATE_NAME) {
00772
00773 res = snprintf(ptr, size, "\010\001P");
00774 size -= res;
00775 ptr += res;
00776 } else {
00777
00778 i = strlen(name);
00779 if (i > 16)
00780 i = 16;
00781 res = snprintf(ptr, size, "\007%c", i);
00782 size -= res;
00783 ptr += res;
00784 for (x = 0; x < i; x++)
00785 ptr[x] = name[x];
00786 ptr[i] = '\0';
00787 ptr += i;
00788 size -= i;
00789 }
00790 return (ptr - msg);
00791
00792 }
00793
00794 int vmwi_generate(unsigned char *buf, int active, int mdmf, int codec)
00795 {
00796 unsigned char msg[256];
00797 int len = 0;
00798 int sum;
00799 int x;
00800 int bytes = 0;
00801 float cr = 1.0;
00802 float ci = 0.0;
00803 float scont = 0.0;
00804
00805 if (mdmf) {
00806
00807 msg[len++] = 0x82;
00808
00809 msg[len++] = 3;
00810
00811 msg[len++] = 0xb;
00812
00813 msg[len++] = 1;
00814
00815 if (active)
00816 msg[len++] = 0xff;
00817 else
00818 msg[len++] = 0x00;
00819 } else {
00820
00821 msg[len++] = 0x6;
00822
00823 msg[len++] = 3;
00824 if (active) {
00825 msg[len++] = 0x42;
00826 msg[len++] = 0x42;
00827 msg[len++] = 0x42;
00828 } else {
00829 msg[len++] = 0x6f;
00830 msg[len++] = 0x6f;
00831 msg[len++] = 0x6f;
00832 }
00833 }
00834 sum = 0;
00835 for (x = 0; x < len; x++)
00836 sum += msg[x];
00837 sum = (256 - (sum & 255));
00838 msg[len++] = sum;
00839
00840 for (x = 0; x < 4000; x++)
00841 PUT_BYTE(0x7f);
00842
00843 for (x = 0; x < 30; x++)
00844 PUT_CLID(0x55);
00845
00846 for (x = 0; x < 170; x++)
00847 PUT_CLID_MARKMS;
00848 for (x = 0; x < len; x++) {
00849 PUT_CLID(msg[x]);
00850 }
00851
00852 for (x = 0; x < 50; x++)
00853 PUT_CLID_MARKMS;
00854 return bytes;
00855 }
00856
00857 int callerid_generate(unsigned char *buf, const char *number, const char *name, int flags, int callwaiting, int codec)
00858 {
00859 int bytes = 0;
00860 int x, sum;
00861 int len;
00862
00863
00864 float cr = 1.0;
00865 float ci = 0.0;
00866 float scont = 0.0;
00867 char msg[256];
00868 len = callerid_genmsg(msg, sizeof(msg), number, name, flags);
00869 if (!callwaiting) {
00870
00871 for (x = 0; x < 4000; x++)
00872 PUT_BYTE(0x7f);
00873
00874 for (x = 0; x < 30; x++)
00875 PUT_CLID(0x55);
00876 }
00877
00878 for (x = 0; x < 150; x++)
00879 PUT_CLID_MARKMS;
00880
00881 PUT_CLID(0x80);
00882
00883 PUT_CLID(len);
00884 sum = 0x80 + strlen(msg);
00885
00886 for (x = 0; x < len; x++) {
00887 PUT_CLID(msg[x]);
00888 sum += msg[x];
00889 }
00890
00891 PUT_CLID(256 - (sum & 255));
00892
00893
00894 for (x = 0; x < 50; x++)
00895 PUT_CLID_MARKMS;
00896
00897 return bytes;
00898 }
00899
00900
00901
00902
00903
00904 void ast_shrink_phone_number(char *n)
00905 {
00906 int x, y = 0;
00907 int bracketed = 0;
00908
00909 for (x = 0; n[x]; x++) {
00910 switch (n[x]) {
00911 case '[':
00912 bracketed++;
00913 n[y++] = n[x];
00914 break;
00915 case ']':
00916 bracketed--;
00917 n[y++] = n[x];
00918 break;
00919 case '-':
00920 if (bracketed)
00921 n[y++] = n[x];
00922 break;
00923 case '.':
00924 if (!n[x+1])
00925 n[y++] = n[x];
00926 break;
00927 default:
00928
00929 if (!strchr("( )", n[x]))
00930 n[y++] = n[x];
00931 }
00932 }
00933 n[y] = '\0';
00934 }
00935
00936
00937
00938
00939
00940
00941 static int ast_is_valid_string(const char *exten, const char *valid)
00942 {
00943 int x;
00944
00945 if (ast_strlen_zero(exten))
00946 return 0;
00947 for (x = 0; exten[x]; x++)
00948 if (!strchr(valid, exten[x]))
00949 return 0;
00950 return 1;
00951 }
00952
00953
00954
00955
00956
00957 int ast_isphonenumber(const char *n)
00958 {
00959 return ast_is_valid_string(n, "0123456789*#+");
00960 }
00961
00962
00963
00964
00965
00966
00967 int ast_is_shrinkable_phonenumber(const char *exten)
00968 {
00969 return ast_is_valid_string(exten, "0123456789*#+()-.");
00970 }
00971
00972
00973
00974
00975
00976
00977
00978
00979
00980
00981 int ast_callerid_parse(char *instr, char **name, char **location)
00982 {
00983 char *ns, *ne, *ls, *le;
00984
00985
00986 if ((ls = strrchr(instr, '<')) && (le = strrchr(ls, '>'))) {
00987 *ls = *le = '\0';
00988 *location = ls + 1;
00989 if ((ns = strchr(instr, '"')) && (ne = strchr(ns + 1, '"'))) {
00990 *ns = *ne = '\0';
00991 *name = ns + 1;
00992 } else if (ns) {
00993
00994
00995
00996 if (strchr(le + 1, '\"')) {
00997 *ns = '\0';
00998 *name = ns + 1;
00999 ast_trim_blanks(*name);
01000 }
01001 } else {
01002 *name = ast_skip_blanks(instr);
01003 ast_trim_blanks(*name);
01004 }
01005 } else {
01006 char tmp[256];
01007
01008 ast_copy_string(tmp, instr, sizeof(tmp));
01009 ast_shrink_phone_number(tmp);
01010 if (ast_isphonenumber(tmp)) {
01011 *name = NULL;
01012 strcpy(instr, tmp);
01013 *location = instr;
01014 } else {
01015 *location = NULL;
01016 if ((ns = strchr(instr, '"')) && (ne = strchr(ns + 1, '"'))) {
01017 *ns = *ne = '\0';
01018 *name = ns + 1;
01019 } else {
01020 *name = ast_skip_blanks(instr);
01021 ast_trim_blanks(*name);
01022 }
01023 }
01024 }
01025 return 0;
01026 }
01027
01028 static int __ast_callerid_generate(unsigned char *buf, const char *name, const char *number, int callwaiting, int codec)
01029 {
01030 if (ast_strlen_zero(name))
01031 name = NULL;
01032 if (ast_strlen_zero(number))
01033 number = NULL;
01034 return callerid_generate(buf, number, name, 0, callwaiting, codec);
01035 }
01036
01037 int ast_callerid_generate(unsigned char *buf, const char *name, const char *number, int codec)
01038 {
01039 return __ast_callerid_generate(buf, name, number, 0, codec);
01040 }
01041
01042 int ast_callerid_callwaiting_generate(unsigned char *buf, const char *name, const char *number, int codec)
01043 {
01044 return __ast_callerid_generate(buf, name, number, 1, codec);
01045 }
01046
01047 char *ast_callerid_merge(char *buf, int bufsiz, const char *name, const char *num, const char *unknown)
01048 {
01049 if (!unknown)
01050 unknown = "<unknown>";
01051 if (name && num)
01052 snprintf(buf, bufsiz, "\"%s\" <%s>", name, num);
01053 else if (name)
01054 ast_copy_string(buf, name, bufsiz);
01055 else if (num)
01056 ast_copy_string(buf, num, bufsiz);
01057 else
01058 ast_copy_string(buf, unknown, bufsiz);
01059 return buf;
01060 }
01061
01062 int ast_callerid_split(const char *buf, char *name, int namelen, char *num, int numlen)
01063 {
01064 char *tmp;
01065 char *l = NULL, *n = NULL;
01066
01067 tmp = ast_strdupa(buf);
01068 ast_callerid_parse(tmp, &n, &l);
01069 if (n)
01070 ast_copy_string(name, n, namelen);
01071 else
01072 name[0] = '\0';
01073 if (l) {
01074 ast_shrink_phone_number(l);
01075 ast_copy_string(num, l, numlen);
01076 } else
01077 num[0] = '\0';
01078 return 0;
01079 }
01080
01081
01082 static struct {
01083 int val;
01084 const char *name;
01085 const char *description;
01086 } pres_types[] = {
01087 { AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, "allowed_not_screened", "Presentation Allowed, Not Screened"},
01088 { AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN, "allowed_passed_screen", "Presentation Allowed, Passed Screen"},
01089 { AST_PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN, "allowed_failed_screen", "Presentation Allowed, Failed Screen"},
01090 { AST_PRES_ALLOWED_NETWORK_NUMBER, "allowed", "Presentation Allowed, Network Number"},
01091 { AST_PRES_PROHIB_USER_NUMBER_NOT_SCREENED, "prohib_not_screened", "Presentation Prohibited, Not Screened"},
01092 { AST_PRES_PROHIB_USER_NUMBER_PASSED_SCREEN, "prohib_passed_screen", "Presentation Prohibited, Passed Screen"},
01093 { AST_PRES_PROHIB_USER_NUMBER_FAILED_SCREEN, "prohib_failed_screen", "Presentation Prohibited, Failed Screen"},
01094 { AST_PRES_PROHIB_NETWORK_NUMBER, "prohib", "Presentation Prohibited, Network Number"},
01095 { AST_PRES_NUMBER_NOT_AVAILABLE, "unavailable", "Number Unavailable"},
01096 };
01097
01098
01099
01100
01101
01102
01103 int ast_parse_caller_presentation(const char *data)
01104 {
01105 int i;
01106
01107 for (i = 0; i < ARRAY_LEN(pres_types); i++) {
01108 if (!strcasecmp(pres_types[i].name, data))
01109 return pres_types[i].val;
01110 }
01111
01112 return -1;
01113 }
01114
01115
01116
01117
01118
01119 const char *ast_describe_caller_presentation(int data)
01120 {
01121 int i;
01122
01123 for (i = 0; i < ARRAY_LEN(pres_types); i++) {
01124 if (pres_types[i].val == data)
01125 return pres_types[i].description;
01126 }
01127
01128 return "unknown";
01129 }
01130
01131
01132
01133
01134
01135 const char *ast_named_caller_presentation(int data)
01136 {
01137 int i;
01138
01139 for (i = 0; i < ARRAY_LEN(pres_types); i++) {
01140 if (pres_types[i].val == data)
01141 return pres_types[i].name;
01142 }
01143
01144 return "unknown";
01145 }