diff options
Diffstat (limited to '1.4.23-rc4/main/callerid.c')
| -rw-r--r-- | 1.4.23-rc4/main/callerid.c | 1117 |
1 files changed, 0 insertions, 1117 deletions
diff --git a/1.4.23-rc4/main/callerid.c b/1.4.23-rc4/main/callerid.c deleted file mode 100644 index d446ecbb8..000000000 --- a/1.4.23-rc4/main/callerid.c +++ /dev/null @@ -1,1117 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer <markster@digium.com> - * - * See http://www.asterisk.org for more information about - * the Asterisk project. Please do not directly contact - * any of the maintainers of this project for assistance; - * the project provides a web site, mailing lists and IRC - * channels for your use. - * - * This program is free software, distributed under the terms of - * the GNU General Public License Version 2. See the LICENSE file - * at the top of the source tree. - */ - -/*! \file - * - * \brief CallerID Generation support - * - * \author Mark Spencer <markster@digium.com> - */ - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include <time.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <math.h> -#include <ctype.h> - -#include "asterisk/ulaw.h" -#include "asterisk/alaw.h" -#include "asterisk/frame.h" -#include "asterisk/channel.h" -#include "asterisk/callerid.h" -#include "asterisk/logger.h" -#include "asterisk/fskmodem.h" -#include "asterisk/options.h" -#include "asterisk/utils.h" - -struct callerid_state { - fsk_data fskd; - char rawdata[256]; - short oldstuff[160]; - int oldlen; - int pos; - int type; - int cksum; - char name[64]; - char number[64]; - int flags; - int sawflag; - int len; - - int skipflag; - unsigned short crc; -}; - - -float cid_dr[4], cid_di[4]; -float clidsb = 8000.0 / 1200.0; -float sasdr, sasdi; -float casdr1, casdi1, casdr2, casdi2; - -#define CALLERID_SPACE 2200.0 /*!< 2200 hz for "0" */ -#define CALLERID_MARK 1200.0 /*!< 1200 hz for "1" */ -#define SAS_FREQ 440.0 -#define CAS_FREQ1 2130.0 -#define CAS_FREQ2 2750.0 - -#define AST_CALLERID_UNKNOWN "<unknown>" - -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) -{ - int x; - float t; - for (x=0;x<len;x++) { - t = *cr1 * ddr1 - *ci1 * ddi1; - *ci1 = *cr1 * ddi1 + *ci1 * ddr1; - *cr1 = t; - t = 2.0 - (*cr1 * *cr1 + *ci1 * *ci1); - *cr1 *= t; - *ci1 *= t; - - t = *cr2 * ddr2 - *ci2 * ddi2; - *ci2 = *cr2 * ddi2 + *ci2 * ddr2; - *cr2 = t; - t = 2.0 - (*cr2 * *cr2 + *ci2 * *ci2); - *cr2 *= t; - *ci2 *= t; - buf[x] = AST_LIN2X((*cr1 + *cr2) * 2048.0); - } -} - -static inline void gen_tone(unsigned char *buf, int len, int codec, float ddr1, float ddi1, float *cr1, float *ci1) -{ - int x; - float t; - for (x=0;x<len;x++) { - t = *cr1 * ddr1 - *ci1 * ddi1; - *ci1 = *cr1 * ddi1 + *ci1 * ddr1; - *cr1 = t; - t = 2.0 - (*cr1 * *cr1 + *ci1 * *ci1); - *cr1 *= t; - *ci1 *= t; - buf[x] = AST_LIN2X(*cr1 * 8192.0); - } -} - -/*! \brief Initialize stuff for inverse FFT */ -void callerid_init(void) -{ - cid_dr[0] = cos(CALLERID_SPACE * 2.0 * M_PI / 8000.0); - cid_di[0] = sin(CALLERID_SPACE * 2.0 * M_PI / 8000.0); - cid_dr[1] = cos(CALLERID_MARK * 2.0 * M_PI / 8000.0); - cid_di[1] = sin(CALLERID_MARK * 2.0 * M_PI / 8000.0); - sasdr = cos(SAS_FREQ * 2.0 * M_PI / 8000.0); - sasdi = sin(SAS_FREQ * 2.0 * M_PI / 8000.0); - casdr1 = cos(CAS_FREQ1 * 2.0 * M_PI / 8000.0); - casdi1 = sin(CAS_FREQ1 * 2.0 * M_PI / 8000.0); - casdr2 = cos(CAS_FREQ2 * 2.0 * M_PI / 8000.0); - casdi2 = sin(CAS_FREQ2 * 2.0 * M_PI / 8000.0); -} - -struct callerid_state *callerid_new(int cid_signalling) -{ - struct callerid_state *cid; - - if ((cid = ast_calloc(1, sizeof(*cid)))) { - cid->fskd.spb = 7.0; /* 1200 baud */ - /* cid->fskd.hdlc = 0; */ /* Async */ - cid->fskd.nbit = 8; /* 8 bits */ - cid->fskd.nstop = 1.0; /* 1 stop bit */ - /* cid->fskd.paridad = 0; */ /* No parity */ - cid->fskd.bw = 1; /* Filter 800 Hz */ - if (cid_signalling == 2) { /* v23 signalling */ - cid->fskd.f_mark_idx = 4; /* 1300 Hz */ - cid->fskd.f_space_idx = 5; /* 2100 Hz */ - } else { /* Bell 202 signalling as default */ - cid->fskd.f_mark_idx = 2; /* 1200 Hz */ - cid->fskd.f_space_idx = 3; /* 2200 Hz */ - } - /* cid->fskd.pcola = 0; */ /* No clue */ - /* cid->fskd.cont = 0.0; */ /* Digital PLL reset */ - /* cid->fskd.x0 = 0.0; */ - /* cid->fskd.state = 0; */ - cid->flags = CID_UNKNOWN_NAME | CID_UNKNOWN_NUMBER; - /* cid->pos = 0; */ - } - - return cid; -} - -void callerid_get(struct callerid_state *cid, char **name, char **number, int *flags) -{ - *flags = cid->flags; - if (cid->flags & (CID_UNKNOWN_NAME | CID_PRIVATE_NAME)) - *name = NULL; - else - *name = cid->name; - if (cid->flags & (CID_UNKNOWN_NUMBER | CID_PRIVATE_NUMBER)) - *number = NULL; - else - *number = cid->number; -} - -void callerid_get_dtmf(char *cidstring, char *number, int *flags) -{ - int i; - int code; - - /* "Clear" the number-buffer. */ - number[0] = 0; - - if (strlen(cidstring) < 2) { - ast_log(LOG_DEBUG, "No cid detected\n"); - *flags = CID_UNKNOWN_NUMBER; - return; - } - - /* Detect protocol and special types */ - if (cidstring[0] == 'B') { - /* Handle special codes */ - code = atoi(&cidstring[1]); - if (code == 0) - *flags = CID_UNKNOWN_NUMBER; - else if (code == 10) - *flags = CID_PRIVATE_NUMBER; - else - ast_log(LOG_DEBUG, "Unknown DTMF code %d\n", code); - } else if (cidstring[0] == 'D' && cidstring[2] == '#') { - /* .DK special code */ - if (cidstring[1] == '1') - *flags = CID_PRIVATE_NUMBER; - if (cidstring[1] == '2' || cidstring[1] == '3') - *flags = CID_UNKNOWN_NUMBER; - } else if (cidstring[0] == 'D' || cidstring[0] == 'A') { - /* "Standard" callerid */ - for (i = 1; i < strlen(cidstring); i++ ) { - if (cidstring[i] == 'C' || cidstring[i] == '#') - break; - if (isdigit(cidstring[i])) - number[i-1] = cidstring[i]; - else - ast_log(LOG_DEBUG, "Unknown CID digit '%c'\n", - cidstring[i]); - } - number[i-1] = 0; - } else if (isdigit(cidstring[0])) { - /* It begins with a digit, so we parse it as a number and hope - * for the best */ - ast_log(LOG_WARNING, "Couldn't detect start-character. CID " - "parsing might be unreliable\n"); - for (i = 0; i < strlen(cidstring); i++) { - if (isdigit(cidstring[i])) - number[i] = cidstring[i]; - else - break; - } - number[i] = 0; - } else { - ast_log(LOG_DEBUG, "Unknown CID protocol, start digit '%c'\n", - cidstring[0]); - *flags = CID_UNKNOWN_NUMBER; - } -} - -int ast_gen_cas(unsigned char *outbuf, int sendsas, int len, int codec) -{ - int pos = 0; - int saslen=2400; - float cr1 = 1.0; - float ci1 = 0.0; - float cr2 = 1.0; - float ci2 = 0.0; - if (sendsas) { - if (len < saslen) - return -1; - gen_tone(outbuf, saslen, codec, sasdr, sasdi, &cr1, &ci1); - len -= saslen; - pos += saslen; - cr2 = cr1; - ci2 = ci1; - } - gen_tones(outbuf + pos, len, codec, casdr1, casdi1, casdr2, casdi2, &cr1, &ci1, &cr2, &ci2); - return 0; -} - -static unsigned short calc_crc(unsigned short crc, unsigned char data) -{ - unsigned int i, j, org, dst; - org = data; - dst = 0; - - for (i=0; i < CHAR_BIT; i++) { - org <<= 1; - dst >>= 1; - if (org & 0x100) { - dst |= 0x80; - } - } - data = (unsigned char)dst; - crc ^= (unsigned int)data << (16 - CHAR_BIT); - for ( j=0; j<CHAR_BIT; j++ ) { - if ( crc & 0x8000U ) - crc = (crc << 1) ^ 0x1021U ; - else - crc <<= 1 ; - } - return crc; -} - -int callerid_feed_jp(struct callerid_state *cid, unsigned char *ubuf, int len, int codec) -{ - int mylen = len; - int olen; - int b = 'X'; - int b2 ; - int res; - int x; - short *buf; - short *obuf; - - if (!(buf = ast_calloc(1, 2 * len + cid->oldlen))) { - return -1; - } - - obuf = buf; - memcpy(buf, cid->oldstuff, cid->oldlen); - mylen += cid->oldlen/2; - - for (x=0;x<len;x++) - buf[x+cid->oldlen/2] = AST_XLAW(ubuf[x]); - - while (mylen >= 160) { - b = b2 = 0; - olen = mylen; - res = fsk_serie(&cid->fskd, buf, &mylen, &b); - - if (mylen < 0) { - ast_log(LOG_ERROR, "No start bit found in fsk data.\n"); - free(obuf); - return -1; - } - - buf += (olen - mylen); - - if (res < 0) { - ast_log(LOG_NOTICE, "fsk_serie failed\n"); - free(obuf); - return -1; - } - - if (res == 1) { - - b2 = b ; - b = b & 0x7f ; - - /* crc checksum calculation */ - if ( cid->sawflag > 1 ) { - cid->crc = calc_crc(cid->crc, (unsigned char)b2); - } - - /* Ignore invalid bytes */ - if (b > 0xff) { - continue; - } - - /* skip DLE if needed */ - if ( cid->sawflag > 0 ) { - if ( cid->sawflag != 5 && cid->skipflag == 0 && b == 0x10 ) { - cid->skipflag = 1 ; - continue ; - } - } - if ( cid->skipflag == 1 ) { - cid->skipflag = 0 ; - } - - /* caller id retrieval */ - switch(cid->sawflag) { - case 0: /* DLE */ - if (b == 0x10) { - cid->sawflag = 1; - cid->skipflag = 0; - cid->crc = 0; - } - break; - case 1: /* SOH */ - if (b == 0x01) { - cid->sawflag = 2; - } - break ; - case 2: /* HEADER */ - if (b == 0x07) { - cid->sawflag = 3; - } - break; - case 3: /* STX */ - if (b == 0x02) { - cid->sawflag = 4; - } - break; - case 4: /* SERVICE TYPE */ - if (b == 0x40) { - cid->sawflag = 5; - } - break; - case 5: /* Frame Length */ - cid->sawflag = 6; - break; - case 6: /* NUMBER TYPE */ - cid->sawflag = 7; - cid->pos = 0; - cid->rawdata[cid->pos++] = b; - break; - case 7: /* NUMBER LENGTH */ - cid->sawflag = 8; - cid->len = b; - if ( (cid->len+2) >= sizeof( cid->rawdata ) ) { - ast_log(LOG_WARNING, "too long caller id string\n" ) ; - free(obuf); - return -1; - } - cid->rawdata[cid->pos++] = b; - break; - case 8: /* Retrieve message */ - cid->rawdata[cid->pos++] = b; - cid->len--; - if (cid->len<=0) { - cid->rawdata[cid->pos] = '\0'; - cid->sawflag = 9; - } - break; - case 9: /* ETX */ - cid->sawflag = 10; - break; - case 10: /* CRC Checksum 1 */ - cid->sawflag = 11; - break; - case 11: /* CRC Checksum 2 */ - cid->sawflag = 12; - if ( cid->crc != 0 ) { - ast_log(LOG_WARNING, "crc checksum error\n" ) ; - free(obuf); - return -1; - } - /* extract caller id data */ - for (x=0; x<cid->pos; ) { - switch (cid->rawdata[x++]) { - case 0x02: /* caller id number */ - cid->number[0] = '\0'; - cid->name[0] = '\0'; - cid->flags = 0; - res = cid->rawdata[x++]; - ast_copy_string(cid->number, &cid->rawdata[x], res+1 ); - x += res; - break; - case 0x21: /* additional information */ - /* length */ - x++; - /* number type */ - switch (cid->rawdata[x]) { - case 0x00: /* unknown */ - case 0x01: /* international number */ - case 0x02: /* domestic number */ - case 0x03: /* network */ - case 0x04: /* local call */ - case 0x06: /* short dial number */ - case 0x07: /* reserved */ - default: /* reserved */ - if (option_debug > 1) - ast_log(LOG_DEBUG, "cid info:#1=%X\n", cid->rawdata[x]); - break ; - } - x++; - /* numbering plan octed 4 */ - x++; - /* numbering plan octed 5 */ - switch (cid->rawdata[x]) { - case 0x00: /* unknown */ - case 0x01: /* recommendation E.164 ISDN */ - case 0x03: /* recommendation X.121 */ - case 0x04: /* telex dial plan */ - case 0x08: /* domestic dial plan */ - case 0x09: /* private dial plan */ - case 0x05: /* reserved */ - default: /* reserved */ - if (option_debug > 1) - ast_log(LOG_DEBUG, "cid info:#2=%X\n", cid->rawdata[x]); - break ; - } - x++; - break ; - case 0x04: /* no callerid reason */ - /* length */ - x++; - /* no callerid reason code */ - switch (cid->rawdata[x]) { - case 'P': /* caller id denied by user */ - case 'O': /* service not available */ - case 'C': /* pay phone */ - case 'S': /* service congested */ - cid->flags |= CID_UNKNOWN_NUMBER; - if (option_debug > 1) - ast_log(LOG_DEBUG, "no cid reason:%c\n",cid->rawdata[x]); - break ; - } - x++; - break ; - case 0x09: /* dialed number */ - /* length */ - res = cid->rawdata[x++]; - /* dialed number */ - x += res; - break ; - case 0x22: /* dialed number additional information */ - /* length */ - x++; - /* number type */ - switch (cid->rawdata[x]) { - case 0x00: /* unknown */ - case 0x01: /* international number */ - case 0x02: /* domestic number */ - case 0x03: /* network */ - case 0x04: /* local call */ - case 0x06: /* short dial number */ - case 0x07: /* reserved */ - default: /* reserved */ - if (option_debug > 1) - ast_log(LOG_NOTICE, "did info:#1=%X\n", cid->rawdata[x]); - break ; - } - x++; - /* numbering plan octed 4 */ - x++; - /* numbering plan octed 5 */ - switch (cid->rawdata[x]) { - case 0x00: /* unknown */ - case 0x01: /* recommendation E.164 ISDN */ - case 0x03: /* recommendation X.121 */ - case 0x04: /* telex dial plan */ - case 0x08: /* domestic dial plan */ - case 0x09: /* private dial plan */ - case 0x05: /* reserved */ - default: /* reserved */ - if (option_debug > 1) - ast_log(LOG_DEBUG, "did info:#2=%X\n", cid->rawdata[x]); - break ; - } - x++; - break ; - } - } - free(obuf); - return 1; - break; - default: - ast_log(LOG_ERROR, "invalid value in sawflag %d\n", cid->sawflag); - } - } - } - if (mylen) { - memcpy(cid->oldstuff, buf, mylen * 2); - cid->oldlen = mylen * 2; - } else - cid->oldlen = 0; - free(obuf); - return 0; -} - - -int callerid_feed(struct callerid_state *cid, unsigned char *ubuf, int len, int codec) -{ - int mylen = len; - int olen; - int b = 'X'; - int res; - int x; - short *buf; - short *obuf; - - if (!(buf = ast_calloc(1, 2 * len + cid->oldlen))) { - return -1; - } - - obuf = buf; - memcpy(buf, cid->oldstuff, cid->oldlen); - mylen += cid->oldlen/2; - - for (x=0;x<len;x++) - buf[x+cid->oldlen/2] = AST_XLAW(ubuf[x]); - while(mylen >= 160) { - olen = mylen; - res = fsk_serie(&cid->fskd, buf, &mylen, &b); - if (mylen < 0) { - ast_log(LOG_ERROR, "No start bit found in fsk data.\n"); - free(obuf); - return -1; - } - buf += (olen - mylen); - if (res < 0) { - ast_log(LOG_NOTICE, "fsk_serie failed\n"); - free(obuf); - return -1; - } - if (res == 1) { - /* Ignore invalid bytes */ - if (b > 0xff) - continue; - switch(cid->sawflag) { - case 0: /* Look for flag */ - if (b == 'U') - cid->sawflag = 2; - break; - case 2: /* Get lead-in */ - if ((b == 0x04) || (b == 0x80)) { - cid->type = b; - cid->sawflag = 3; - cid->cksum = b; - } - break; - case 3: /* Get length */ - /* Not a lead in. We're ready */ - cid->sawflag = 4; - cid->len = b; - cid->pos = 0; - cid->cksum += b; - break; - case 4: /* Retrieve message */ - if (cid->pos >= 128) { - ast_log(LOG_WARNING, "Caller ID too long???\n"); - free(obuf); - return -1; - } - cid->rawdata[cid->pos++] = b; - cid->len--; - cid->cksum += b; - if (!cid->len) { - cid->rawdata[cid->pos] = '\0'; - cid->sawflag = 5; - } - break; - case 5: /* Check checksum */ - if (b != (256 - (cid->cksum & 0xff))) { - ast_log(LOG_NOTICE, "Caller*ID failed checksum\n"); - /* Try again */ - cid->sawflag = 0; - break; - } - - cid->number[0] = '\0'; - cid->name[0] = '\0'; - /* If we get this far we're fine. */ - if (cid->type == 0x80) { - /* MDMF */ - /* Go through each element and process */ - for (x=0;x< cid->pos;) { - switch(cid->rawdata[x++]) { - case 1: - /* Date */ - break; - case 2: /* Number */ - case 3: /* Number (for Zebble) */ - case 4: /* Number */ - res = cid->rawdata[x]; - if (res > 32) { - ast_log(LOG_NOTICE, "Truncating long caller ID number from %d bytes to 32\n", cid->rawdata[x]); - res = 32; - } - if (ast_strlen_zero(cid->number)) { - memcpy(cid->number, cid->rawdata + x + 1, res); - /* Null terminate */ - cid->number[res] = '\0'; - } - break; - case 6: /* Stentor Call Qualifier (ie. Long Distance call) */ - break; - case 7: /* Name */ - case 8: /* Name */ - res = cid->rawdata[x]; - if (res > 32) { - ast_log(LOG_NOTICE, "Truncating long caller ID name from %d bytes to 32\n", cid->rawdata[x]); - res = 32; - } - memcpy(cid->name, cid->rawdata + x + 1, res); - cid->name[res] = '\0'; - break; - case 17: /* UK: Call type, 1=Voice Call, 2=Ringback when free, 129=Message waiting */ - case 19: /* UK: Network message system status (Number of messages waiting) */ - case 22: /* Something French */ - break; - default: - ast_log(LOG_NOTICE, "Unknown IE %d\n", cid->rawdata[x-1]); - } - res = cid->rawdata[x]; - if (0 > res){ /* Negative offset in the CID Spill */ - ast_log(LOG_NOTICE, "IE %d has bad field length of %d at offset %d\n", cid->rawdata[x-1], cid->rawdata[x], x); - /* Try again */ - cid->sawflag = 0; - break; /* Exit the loop */ - } - x += cid->rawdata[x]; - x++; - } - } else { - /* SDMF */ - ast_copy_string(cid->number, cid->rawdata + 8, sizeof(cid->number)); - } - /* Update flags */ - cid->flags = 0; - if (!strcmp(cid->number, "P")) { - strcpy(cid->number, ""); - cid->flags |= CID_PRIVATE_NUMBER; - } else if (!strcmp(cid->number, "O") || ast_strlen_zero(cid->number)) { - strcpy(cid->number, ""); - cid->flags |= CID_UNKNOWN_NUMBER; - } - if (!strcmp(cid->name, "P")) { - strcpy(cid->name, ""); - cid->flags |= CID_PRIVATE_NAME; - } else if (!strcmp(cid->name, "O") || ast_strlen_zero(cid->name)) { - strcpy(cid->name, ""); - cid->flags |= CID_UNKNOWN_NAME; - } - free(obuf); - return 1; - break; - default: - ast_log(LOG_ERROR, "Dunno what to do with a digit in sawflag %d\n", cid->sawflag); - } - } - } - if (mylen) { - memcpy(cid->oldstuff, buf, mylen * 2); - cid->oldlen = mylen * 2; - } else - cid->oldlen = 0; - free(obuf); - return 0; -} - -void callerid_free(struct callerid_state *cid) -{ - free(cid); -} - -static int callerid_genmsg(char *msg, int size, const char *number, const char *name, int flags) -{ - time_t t; - struct tm tm; - char *ptr; - int res; - int i,x; - /* Get the time */ - time(&t); - ast_localtime(&t, &tm, NULL); - - ptr = msg; - - /* Format time and message header */ - res = snprintf(ptr, size, "\001\010%02d%02d%02d%02d", tm.tm_mon + 1, - tm.tm_mday, tm.tm_hour, tm.tm_min); - size -= res; - ptr += res; - if (ast_strlen_zero(number) || (flags & CID_UNKNOWN_NUMBER)) { - /* Indicate number not known */ - res = snprintf(ptr, size, "\004\001O"); - size -= res; - ptr += res; - } else if (flags & CID_PRIVATE_NUMBER) { - /* Indicate number is private */ - res = snprintf(ptr, size, "\004\001P"); - size -= res; - ptr += res; - } else { - /* Send up to 16 digits of number MAX */ - i = strlen(number); - if (i > 16) i = 16; - res = snprintf(ptr, size, "\002%c", i); - size -= res; - ptr += res; - for (x = 0; x < i; x++) - ptr[x] = number[x]; - ptr[i] = '\0'; - ptr += i; - size -= i; - } - - if (ast_strlen_zero(name) || (flags & CID_UNKNOWN_NAME)) { - /* Indicate name not known */ - res = snprintf(ptr, size, "\010\001O"); - size -= res; - ptr += res; - } else if (flags & CID_PRIVATE_NAME) { - /* Indicate name is private */ - res = snprintf(ptr, size, "\010\001P"); - size -= res; - ptr += res; - } else { - /* Send up to 16 digits of name MAX */ - i = strlen(name); - if (i > 16) i = 16; - res = snprintf(ptr, size, "\007%c", i); - size -= res; - ptr += res; - for (x=0;x<i;x++) - ptr[x] = name[x]; - ptr[i] = '\0'; - ptr += i; - size -= i; - } - return (ptr - msg); - -} - -int vmwi_generate(unsigned char *buf, int active, int mdmf, int codec) -{ - unsigned char msg[256]; - int len=0; - int sum; - int x; - int bytes = 0; - float cr = 1.0; - float ci = 0.0; - float scont = 0.0; - if (mdmf) { - /* MDMF Message waiting */ - msg[len++] = 0x82; - /* Length is 3 */ - msg[len++] = 3; - /* IE is "Message Waiting Parameter" */ - msg[len++] = 0xb; - /* Length of IE is one */ - msg[len++] = 1; - /* Active or not */ - if (active) - msg[len++] = 0xff; - else - msg[len++] = 0x00; - } else { - /* SDMF Message waiting */ - msg[len++] = 0x6; - /* Length is 3 */ - msg[len++] = 3; - if (active) { - msg[len++] = 0x42; - msg[len++] = 0x42; - msg[len++] = 0x42; - } else { - msg[len++] = 0x6f; - msg[len++] = 0x6f; - msg[len++] = 0x6f; - } - } - sum = 0; - for (x=0; x<len; x++) - sum += msg[x]; - sum = (256 - (sum & 255)); - msg[len++] = sum; - /* Wait a half a second */ - for (x=0; x<4000; x++) - PUT_BYTE(0x7f); - /* Transmit 30 0x55's (looks like a square wave) for channel seizure */ - for (x=0; x<30; x++) - PUT_CLID(0x55); - /* Send 170ms of callerid marks */ - for (x=0; x<170; x++) - PUT_CLID_MARKMS; - for (x=0; x<len; x++) { - PUT_CLID(msg[x]); - } - /* Send 50 more ms of marks */ - for (x=0; x<50; x++) - PUT_CLID_MARKMS; - return bytes; -} - -int callerid_generate(unsigned char *buf, const char *number, const char *name, int flags, int callwaiting, int codec) -{ - int bytes=0; - int x, sum; - int len; - - /* Initial carriers (real/imaginary) */ - float cr = 1.0; - float ci = 0.0; - float scont = 0.0; - char msg[256]; - len = callerid_genmsg(msg, sizeof(msg), number, name, flags); - if (!callwaiting) { - /* Wait a half a second */ - for (x=0; x<4000; x++) - PUT_BYTE(0x7f); - /* Transmit 30 0x55's (looks like a square wave) for channel seizure */ - for (x=0; x<30; x++) - PUT_CLID(0x55); - } - /* Send 150ms of callerid marks */ - for (x=0; x<150; x++) - PUT_CLID_MARKMS; - /* Send 0x80 indicating MDMF format */ - PUT_CLID(0x80); - /* Put length of whole message */ - PUT_CLID(len); - sum = 0x80 + strlen(msg); - /* Put each character of message and update checksum */ - for (x=0; x<len; x++) { - PUT_CLID(msg[x]); - sum += msg[x]; - } - /* Send 2's compliment of sum */ - PUT_CLID(256 - (sum & 255)); - - /* Send 50 more ms of marks */ - for (x=0; x<50; x++) - PUT_CLID_MARKMS; - - return bytes; -} - -/*! \brief Clean up phone string - * remove '(', ' ', ')', non-trailing '.', and '-' not in square brackets. - * Basically, remove anything that could be invalid in a pattern. - */ -void ast_shrink_phone_number(char *n) -{ - int x, y=0; - int bracketed = 0; - - for (x=0; n[x]; x++) { - switch(n[x]) { - case '[': - bracketed++; - n[y++] = n[x]; - break; - case ']': - bracketed--; - n[y++] = n[x]; - break; - case '-': - if (bracketed) - n[y++] = n[x]; - break; - case '.': - if (!n[x+1]) - n[y++] = n[x]; - break; - default: - if (!strchr("( )", n[x])) - n[y++] = n[x]; - } - } - n[y] = '\0'; -} - -/*! \brief Checks if phone number consists of valid characters - \param exten String that needs to be checked - \param valid Valid characters in string - \return 1 if valid string, 0 if string contains invalid characters -*/ -static int ast_is_valid_string(const char *exten, const char *valid) -{ - int x; - - if (ast_strlen_zero(exten)) - return 0; - for (x=0; exten[x]; x++) - if (!strchr(valid, exten[x])) - return 0; - return 1; -} - -/*! \brief checks if string consists only of digits and * \# and + - \return 1 if string is valid AST phone number - \return 0 if not -*/ -int ast_isphonenumber(const char *n) -{ - return ast_is_valid_string(n, "0123456789*#+"); -} - -/*! \brief checks if string consists only of digits and ( ) - * \# and + - Pre-qualifies the string for ast_shrink_phone_number() - \return 1 if string is valid AST shrinkable phone number - \return 0 if not -*/ -int ast_is_shrinkable_phonenumber(const char *exten) -{ - return ast_is_valid_string(exten, "0123456789*#+()-."); -} - -/*! - * \brief Destructively parse instr for caller id information - * \return always returns 0, as the code always returns something. - * \note XXX 'name' is not parsed consistently e.g. we have - * input location name - * " foo bar " <123> 123 ' foo bar ' (with spaces around) - * " foo bar " NULL 'foo bar' (without spaces around) - * The parsing of leading and trailing space/quotes should be more consistent. - */ -int ast_callerid_parse(char *instr, char **name, char **location) -{ - char *ns, *ne, *ls, *le; - - /* Try "name" <location> format or name <location> format */ - if ((ls = strchr(instr, '<')) && (le = strchr(ls, '>'))) { - *ls = *le = '\0'; /* location found, trim off the brackets */ - *location = ls + 1; /* and this is the result */ - if ((ns = strchr(instr, '"')) && (ne = strchr(ns + 1, '"'))) { - *ns = *ne = '\0'; /* trim off the quotes */ - *name = ns + 1; /* and this is the name */ - } else if (ns) { - /* An opening quote was found but no closing quote was. The closing - * quote may actually be after the end of the bracketed number - */ - if (strchr(le + 1, '\"')) { - *ns = '\0'; - *name = ns + 1; - ast_trim_blanks(*name); - } - } else { /* no quotes, trim off leading and trailing spaces */ - *name = ast_skip_blanks(instr); - ast_trim_blanks(*name); - } - } else { /* no valid brackets */ - char tmp[256]; - - ast_copy_string(tmp, instr, sizeof(tmp)); - ast_shrink_phone_number(tmp); - if (ast_isphonenumber(tmp)) { /* Assume it's just a location */ - *name = NULL; - strcpy(instr, tmp); /* safe, because tmp will always be the same size or smaller than instr */ - *location = instr; - } else { /* Assume it's just a name. */ - *location = NULL; - if ((ns = strchr(instr, '"')) && (ne = strchr(ns + 1, '"'))) { - *ns = *ne = '\0'; /* trim off the quotes */ - *name = ns + 1; /* and this is the name */ - } else { /* no quotes, trim off leading and trailing spaces */ - *name = ast_skip_blanks(instr); - ast_trim_blanks(*name); - } - } - } - return 0; -} - -static int __ast_callerid_generate(unsigned char *buf, const char *name, const char *number, int callwaiting, int codec) -{ - if (ast_strlen_zero(name)) - name = NULL; - if (ast_strlen_zero(number)) - number = NULL; - return callerid_generate(buf, number, name, 0, callwaiting, codec); -} - -int ast_callerid_generate(unsigned char *buf, const char *name, const char *number, int codec) -{ - return __ast_callerid_generate(buf, name, number, 0, codec); -} - -int ast_callerid_callwaiting_generate(unsigned char *buf, const char *name, const char *number, int codec) -{ - return __ast_callerid_generate(buf, name, number, 1, codec); -} - -char *ast_callerid_merge(char *buf, int bufsiz, const char *name, const char *num, const char *unknown) -{ - if (!unknown) - unknown = "<unknown>"; - if (name && num) - snprintf(buf, bufsiz, "\"%s\" <%s>", name, num); - else if (name) - ast_copy_string(buf, name, bufsiz); - else if (num) - ast_copy_string(buf, num, bufsiz); - else - ast_copy_string(buf, unknown, bufsiz); - return buf; -} - -int ast_callerid_split(const char *buf, char *name, int namelen, char *num, int numlen) -{ - char *tmp; - char *l = NULL, *n = NULL; - - tmp = ast_strdupa(buf); - ast_callerid_parse(tmp, &n, &l); - if (n) - ast_copy_string(name, n, namelen); - else - name[0] = '\0'; - if (l) { - ast_shrink_phone_number(l); - ast_copy_string(num, l, numlen); - } else - num[0] = '\0'; - return 0; -} - -/*! \brief Translation table for Caller ID Presentation settings */ -static struct { - int val; - char *name; - char *description; -} pres_types[] = { - { AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, "allowed_not_screened", "Presentation Allowed, Not Screened"}, - { AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN, "allowed_passed_screen", "Presentation Allowed, Passed Screen"}, - { AST_PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN, "allowed_failed_screen", "Presentation Allowed, Failed Screen"}, - { AST_PRES_ALLOWED_NETWORK_NUMBER, "allowed", "Presentation Allowed, Network Number"}, - { AST_PRES_PROHIB_USER_NUMBER_NOT_SCREENED, "prohib_not_screened", "Presentation Prohibited, Not Screened"}, - { AST_PRES_PROHIB_USER_NUMBER_PASSED_SCREEN, "prohib_passed_screen", "Presentation Prohibited, Passed Screen"}, - { AST_PRES_PROHIB_USER_NUMBER_FAILED_SCREEN, "prohib_failed_screen", "Presentation Prohibited, Failed Screen"}, - { AST_PRES_PROHIB_NETWORK_NUMBER, "prohib", "Presentation Prohibited, Network Number"}, - { AST_PRES_NUMBER_NOT_AVAILABLE, "unavailable", "Number Unavailable"}, -}; - -/*! \brief Convert caller ID text code to value - used in config file parsing - \param data text string - \return value AST_PRES_ from callerid.h -*/ -int ast_parse_caller_presentation(const char *data) -{ - int i; - - for (i = 0; i < ((sizeof(pres_types) / sizeof(pres_types[0]))); i++) { - if (!strcasecmp(pres_types[i].name, data)) - return pres_types[i].val; - } - - return -1; -} - -/*! \brief Convert caller ID pres value to explanatory string - \param data value (see callerid.h AST_PRES_ ) - \return string for human presentation -*/ -const char *ast_describe_caller_presentation(int data) -{ - int i; - - for (i = 0; i < ((sizeof(pres_types) / sizeof(pres_types[0]))); i++) { - if (pres_types[i].val == data) - return pres_types[i].description; - } - - return "unknown"; -} |