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Diffstat (limited to 'code/esp32/components/eos/gsm.c')
-rw-r--r--code/esp32/components/eos/gsm.c453
1 files changed, 0 insertions, 453 deletions
diff --git a/code/esp32/components/eos/gsm.c b/code/esp32/components/eos/gsm.c
deleted file mode 100644
index 788722e..0000000
--- a/code/esp32/components/eos/gsm.c
+++ /dev/null
@@ -1,453 +0,0 @@
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-
-#include "gsm.h"
-
-#define DIVC(x,y) ((x) / (y) + ((x) % (y) != 0))
-
-uint8_t pdu_getc(char *pdu) {
- int ch;
- sscanf(pdu, "%2X", &ch);
- return ch;
-}
-
-void pdu_putc(uint8_t ch, char *pdu) {
- sprintf(pdu, "%.2X", ch);
-}
-
-void pdu_puts(uint8_t *s, int s_len, char *pdu) {
- int i;
-
- for (i=0; i<s_len; i++) {
- sprintf(pdu + 2 * i, "%.2X", s[i]);
- }
-}
-
-void pdu_gets(char *pdu, uint8_t *s, int s_len) {
- int i, ch;
-
- for (i=0; i<s_len; i++) {
- sscanf(pdu + 2 * i, "%2X", &ch);
- s[i] = ch;
- }
-}
-
-void gsm_dcs_dec(uint8_t dcs, uint8_t *enc, uint16_t *flags) {
- if ((dcs & GSM_DCS_GENERAL_IND) == 0) {
- *enc = dcs & GSM_DCS_ENC;
- if (dcs & GSM_DCS_CLASS_IND) {
- *flags |= GSM_FLAG_CLASS;
- *flags |= (uint16_t)(dcs & GSM_DCS_CLASS) << 8;
- }
- if (dcs & GSM_DCS_COMPRESS_IND) *flags |= GSM_FLAG_COMPRESS;
- if (dcs & GSM_DCS_DELETE_IND) *flags |= GSM_FLAG_DELETE;
- } else {
- uint8_t group = dcs & GSM_DCS_GROUP;
-
- switch (group) {
- case GSM_DCS_MWI_DISCARD:
- case GSM_DCS_MWI_STORE_GSM7:
- case GSM_DCS_MWI_STORE_UCS2:
- if (group == GSM_DCS_MWI_STORE_UCS2) {
- *enc = GSM_ENC_UCS2;
- } else {
- *enc = GSM_ENC_7BIT;
- }
- if (GSM_DCS_MWI_DISCARD) *flags |= GSM_FLAG_DISCARD;
- *flags |= GSM_FLAG_MWI;
- *flags |= (uint16_t)(dcs & (GSM_DCS_MWI_SENSE | GSM_DCS_MWI_TYPE)) << 12;
- break;
-
- case GSM_DCS_ENCLASS:
- *flags |= GSM_FLAG_CLASS;
- *flags |= (uint16_t)(dcs & GSM_DCS_CLASS) << 8;
- *enc = dcs & GSM_DCS_ENCLASS_ENC ? GSM_ENC_8BIT : GSM_ENC_7BIT;
- break;
- }
- }
-}
-
-void gsm_dcs_enc(uint8_t enc, uint16_t flags, uint8_t *dcs) {
- *dcs = enc;
- if (flags & GSM_FLAG_CLASS) {
- *dcs |= GSM_DCS_CLASS_IND;
- *dcs |= (flags >> 8) & GSM_DCS_CLASS;
- }
- if (flags & GSM_FLAG_COMPRESS) *dcs |= GSM_DCS_COMPRESS_IND;
- if (flags & GSM_FLAG_DELETE) *dcs |= GSM_DCS_DELETE_IND;
-}
-
-int gsm_ts_enc(char *ts, char *pdu, int pdu_size) {
- uint8_t tz;
- int tz_hh, tz_mm;
-
- if (pdu_size < 14) return GSM_ERR;
-
- pdu[1] = ts[2]; // YY
- pdu[0] = ts[3];
-
- pdu[3] = ts[5]; // MM
- pdu[2] = ts[6];
-
- pdu[5] = ts[8]; // DD
- pdu[4] = ts[9];
-
- pdu[7] = ts[11]; // hh
- pdu[6] = ts[12];
-
- pdu[9] = ts[14]; // mm
- pdu[8] = ts[15];
-
- pdu[11] = ts[17]; // ss
- pdu[10] = ts[18];
-
- sscanf(ts + 20, "%2d:%2d", &tz_hh, &tz_mm);
- tz = tz_hh * 4 + tz_mm / 15;
- tz = (tz / 10) | ((tz % 10) << 4);
- if (ts[19] == '-') tz |= 0x08;
-
- pdu_putc(tz, pdu + 12);
-
- return 14;
-}
-
-int gsm_ts_dec(char *pdu, int pdu_len, char *ts) {
- uint8_t tz;
-
- if (pdu_len < 14) return GSM_ERR;
-
- ts[0] = '2';
- ts[1] = '0';
- ts[2] = pdu[1]; // YY
- ts[3] = pdu[0];
- ts[4] = '-';
- ts[5] = pdu[3]; // MM
- ts[6] = pdu[2];
- ts[7] = '-';
- ts[8] = pdu[5]; // DD
- ts[9] = pdu[4];
- ts[10] = 'T';
- ts[11] = pdu[7]; // hh
- ts[12] = pdu[6];
- ts[13] = ':';
- ts[14] = pdu[9]; // mm
- ts[15] = pdu[8];
- ts[16] = ':';
- ts[17] = pdu[11]; // ss
- ts[18] = pdu[10];
-
- tz = pdu_getc(pdu + 12);
- if (tz & 0x08) {
- ts[19] = '-';
- tz = tz & ~0x08;
- } else {
- ts[19] = '+';
- }
- tz = (tz & 0x0f) * 10 + (tz >> 4);
- sprintf(ts + 20, "%.2d:%.2d", tz / 4, (tz % 4) * 15);
-
- return 14;
-}
-
-int gsm_7bit_enc(char *text, int text_len, char *pdu, int padb) {
- uint8_t carry = 0;
- int i = 0, pdu_len = 0, shc = 0;
-
- if (!text_len) return 0;
-
- if (padb) {
- shc = 7 - padb;
- } else {
- carry = *text;
- i++;
- }
-
- while (i < text_len) {
- pdu_putc(carry | (*(text + i) << (7 - shc)), pdu + pdu_len);
- pdu_len += 2;
-
- shc++;
- shc = shc % 7;
- if (!shc) {
- i++;
- if (i == text_len) return pdu_len;
- }
-
- carry = *(text + i) >> shc;
- i++;
- }
- pdu_putc(carry, pdu + pdu_len);
- pdu_len += 2;
-
- return pdu_len;
-}
-
-int gsm_7bit_dec(char *pdu, char *text, int text_len, int padb) {
- uint8_t ch;
- uint8_t carry = 0;
- int i = 0, pdu_len = 0, shc = 0;
-
- if (!text_len) return 0;
-
- if (padb) {
- ch = pdu_getc(pdu);
- pdu_len += 2;
- if (padb == 1) {
- *text = ch >> 1;
- i++;
- } else {
- carry = ch >> padb;
- shc = 8 - padb;
- }
- }
-
- while (i < text_len) {
- ch = pdu_getc(pdu + pdu_len);
- pdu_len += 2;
-
- *(text + i) = ((ch << shc) | carry) & 0x7f;
- carry = ch >> (7 - shc);
- i++;
-
- shc++;
- shc = shc % 7;
- if (!shc && (i < text_len)) {
- *(text + i) = carry;
- carry = 0;
- i++;
- }
- }
-
- return pdu_len;
-}
-
-int gsm_addr_enc(char *addr, int addr_len, uint8_t addr_type, char *pdu, int pdu_size) {
- int _pdu_len;
-
- addr_type |= GSM_EXT;
-
- if ((addr_type & GSM_TON) == GSM_TON_ALPHANUMERIC) {
- int _addr_len = DIVC(addr_len * 7, 4);
-
- _pdu_len = 4 + DIVC(_addr_len, 2) * 2;
- if (pdu_size < _pdu_len) return GSM_ERR;
-
- pdu_putc(_addr_len, pdu);
- pdu_putc(addr_type, pdu + 2);
- gsm_7bit_enc(addr, addr_len, pdu, 0);
- } else {
- int i;
-
- if (addr_type & GSM_TON_INTERNATIONAL) {
- if (addr[0] != '+') return GSM_ERR;
- addr++;
- addr_len--;
- }
- _pdu_len = 4 + DIVC(addr_len, 2) * 2;
- if (pdu_size < _pdu_len) return GSM_ERR;
-
- pdu_putc(addr_len, pdu);
- pdu_putc(addr_type, pdu + 2);
- for (i=0; i<addr_len / 2; i++) {
- pdu[4 + 2 * i] = addr[2 * i + 1];
- pdu[4 + 2 * i + 1] = addr[2 * i];
- }
- if (addr_len % 2 != 0) {
- pdu[4 + 2 * i] = 'F';
- pdu[4 + 2 * i + 1] = addr[2 * i];
- }
- }
-
- return _pdu_len;
-}
-
-int gsm_addr_dec(char *pdu, int pdu_len, char *addr, int addr_size, int *addr_len, uint8_t *addr_type) {
- int _pdu_len;
-
- if (pdu_len < 4) return GSM_ERR;
-
- *addr_len = pdu_getc(pdu);
- *addr_type = pdu_getc(pdu + 2);
-
- if (!(*addr_type & GSM_EXT)) return GSM_ERR;
-
- _pdu_len = 4 + DIVC(*addr_len, 2) * 2;
- if (pdu_len < _pdu_len) return GSM_ERR;
-
- if ((*addr_type & GSM_TON) == GSM_TON_ALPHANUMERIC) {
- *addr_len = (*addr_len * 4) / 7;
- if (addr_size < *addr_len) return GSM_ERR;
-
- gsm_7bit_dec(pdu + 4, addr, *addr_len, 0);
- } else {
- int i;
- int _addr_len = *addr_len;
-
- if (*addr_type & GSM_TON_INTERNATIONAL) {
- addr[0] = '+';
- addr++;
- (*addr_len)++;
- }
- if (addr_size < *addr_len) return GSM_ERR;
-
- for (i=0; i<_addr_len / 2; i++) {
- addr[2 * i] = pdu[4 + 2 * i + 1];
- addr[2 * i + 1] = pdu[4 + 2 * i];
- }
- if (_addr_len % 2 != 0) {
- addr[2 * i] = pdu[4 + 2 * i + 1];
- }
- }
-
- return _pdu_len;
-}
-
-int gsm_sms_enc(uint8_t pid, char *addr, int addr_len, uint8_t addr_type, uint8_t *udh, int udh_len, uint8_t *msg, int msg_len, uint8_t enc, uint16_t flags, char *pdu, int pdu_size) {
- int rv, _pdu_len = 0;
- uint8_t mti = GSM_MTI_SUBMIT;
- uint8_t dcs = 0;
- uint8_t udl;
-
- if (udh_len) mti |= GSM_UDHI;
-
- if (pdu_size < 4) return GSM_ERR;
- pdu_putc(mti, pdu);
- pdu_putc(00, pdu + 2);
- _pdu_len += 4;
-
- rv = gsm_addr_enc(addr, addr_len, addr_type, pdu + _pdu_len, pdu_size - _pdu_len);
- if (rv < 0) return rv;
- _pdu_len += rv;
-
- if (pdu_size < _pdu_len + 4) return GSM_ERR;
- gsm_dcs_enc(enc, flags, &dcs);
- pdu_putc(pid, pdu + _pdu_len);
- pdu_putc(dcs, pdu + _pdu_len + 2);
- _pdu_len += 4;
-
- if (enc == GSM_ENC_7BIT) {
- int udh_blen = 0;
- int padb = 0;
-
- if (udh_len) {
- udh_blen = 8 * (udh_len + 1);
- padb = DIVC(udh_blen, 7) * 7 - udh_blen;
- }
- udl = DIVC(udh_blen, 7) + msg_len;
-
- if (pdu_size < _pdu_len + (DIVC(udl * 7, 8) + 1) * 2) return GSM_ERR;
- pdu_putc(udl, pdu + _pdu_len);
- _pdu_len += 2;
-
- if (udh_len) {
- pdu_putc(udh_len, pdu + _pdu_len);
- pdu_puts(udh, udh_len, pdu + _pdu_len + 2);
- _pdu_len += (udh_len + 1) * 2;
- }
-
- rv = gsm_7bit_enc((char *)msg, msg_len, pdu + _pdu_len, padb);
- if (rv < 0) return rv;
- _pdu_len += rv;
- } else {
- udl = msg_len + (udh_len ? udh_len + 1 : 0);
-
- if (pdu_size < _pdu_len + (udl + 1) * 2) return GSM_ERR;
- pdu_putc(udl, pdu + _pdu_len);
- _pdu_len += 2;
-
- if (udh_len) {
- pdu_putc(udh_len, pdu + _pdu_len);
- pdu_puts(udh, udh_len, pdu + _pdu_len + 2);
- _pdu_len += (udh_len + 1) * 2;
- }
-
- pdu_puts(msg, msg_len, pdu + _pdu_len);
- _pdu_len += msg_len * 2;
- }
-
- return _pdu_len;
-}
-
-int gsm_sms_dec(char *pdu, int pdu_len, uint8_t *pid, char *addr, int addr_size, int *addr_len, uint8_t *addr_type, uint8_t *udh, int udh_size, int *udh_len, uint8_t *msg, int msg_size, int *msg_len, char *ts, uint8_t *enc, uint16_t *flags) {
- int rv, _pdu_len = 0;
- uint8_t mti;
- uint8_t dcs;
- uint8_t udl;
-
- if (pdu_len < 2) return GSM_ERR;
- mti = pdu_getc(pdu);
- _pdu_len += 2;
- if ((mti & GSM_MTI) != GSM_MTI_DELIVER) return GSM_ERR;
-
- rv = gsm_addr_dec(pdu + _pdu_len, pdu_len - _pdu_len, addr, addr_size, addr_len, addr_type);
- if (rv < 0) return rv;
- _pdu_len += rv;
-
- if (pdu_len < _pdu_len + 4) return GSM_ERR;
- *pid = pdu_getc(pdu + _pdu_len);
- dcs = pdu_getc(pdu + _pdu_len + 2);
- _pdu_len += 4;
- gsm_dcs_dec(dcs, enc, flags);
-
- rv = gsm_ts_dec(pdu + _pdu_len, pdu_len - _pdu_len, ts);
- if (rv < 0) return rv;
- _pdu_len += rv;
-
- if (pdu_len < _pdu_len + 2) return GSM_ERR;
- udl = pdu_getc(pdu + _pdu_len);
- _pdu_len += 2;
-
- if ((mti & GSM_UDHI) && (udl == 0)) return GSM_ERR;
- *udh_len = 0;
-
- if (*enc == GSM_ENC_7BIT) {
- int udh_blen = 0;
- int padb = 0;
-
- if (pdu_len < _pdu_len + DIVC(udl * 7, 8) * 2) return GSM_ERR;
-
- if (mti & GSM_UDHI) {
- *udh_len = pdu_getc(pdu + _pdu_len);
- udh_blen = 8 * (*udh_len + 1);
- padb = DIVC(udh_blen, 7) * 7 - udh_blen;
-
- if (udl * 7 < udh_blen) return GSM_ERR;
- if (udh_size < *udh_len) return GSM_ERR;
-
- pdu_gets(pdu + _pdu_len + 2, udh, *udh_len);
- _pdu_len += (*udh_len + 1) * 2;
- } else {
- *udh_len = 0;
- }
-
- *msg_len = udl - DIVC(udh_blen, 7);
- if (msg_size < *msg_len) return GSM_ERR;
-
- rv = gsm_7bit_dec(pdu + _pdu_len, (char *)msg, *msg_len, padb);
- if (rv < 0) return rv;
- _pdu_len += rv;
- } else {
- if (pdu_len < _pdu_len + udl * 2) return GSM_ERR;
-
- if (mti & GSM_UDHI) {
- *udh_len = pdu_getc(pdu + _pdu_len);
-
- if (udl < *udh_len + 1) return GSM_ERR;
- if (udh_size < *udh_len) return GSM_ERR;
-
- pdu_gets(pdu + _pdu_len + 2, udh, *udh_len);
- _pdu_len += (*udh_len + 1) * 2;
- } else {
- *udh_len = 0;
- }
-
- *msg_len = udl - (*udh_len ? *udh_len + 1 : 0);
- if (msg_size < *msg_len) return GSM_ERR;
-
- pdu_gets(pdu + _pdu_len, msg, *msg_len);
- _pdu_len += *msg_len * 2;
- }
-
- return _pdu_len;
-}
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