mirror of git://git.sysmocom.de/ofono
2375 lines
48 KiB
C
2375 lines
48 KiB
C
/*
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*
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* oFono - Open Source Telephony
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*
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* Copyright (C) 2008-2009 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include "util.h"
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#include "smsutil.h"
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void extract_bcd_number(const unsigned char *buf, int len, char *out)
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{
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static const char digit_lut[] = "0123456789*#abc\0";
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unsigned char oct;
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int i;
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for (i = 0; i < len; i++) {
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oct = buf[i];
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out[i*2] = digit_lut[oct & 0x0f];
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out[i*2+1] = digit_lut[(oct & 0xf0) >> 4];
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}
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out[i*2] = '\0';
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}
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static inline int to_semi_oct(char in)
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{
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int digit;
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switch (in) {
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case '0':
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digit = 0;
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break;
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case '1':
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digit = 1;
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break;
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case '2':
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digit = 2;
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break;
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case '3':
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digit = 3;
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break;
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case '4':
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digit = 4;
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break;
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case '5':
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digit = 5;
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break;
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case '6':
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digit = 6;
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break;
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case '7':
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digit = 7;
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break;
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case '8':
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digit = 8;
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break;
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case '9':
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digit = 9;
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break;
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case '*':
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digit = 10;
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break;
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case '#':
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digit = 11;
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break;
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case 'A':
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case 'a':
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digit = 12;
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break;
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case 'B':
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case 'b':
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digit = 13;
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break;
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case 'C':
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case 'c':
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digit = 14;
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break;
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default:
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digit = -1;
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break;
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}
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return digit;
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}
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/* Returns whether the DCS could be parsed successfully, e.g. no reserved
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* values were used
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*/
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gboolean sms_dcs_decode(guint8 dcs, enum sms_class *cls,
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enum sms_charset *charset,
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gboolean *compressed, gboolean *autodelete)
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{
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guint8 upper = (dcs & 0xf0) >> 4;
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enum sms_charset ch;
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enum sms_class cl;
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gboolean comp;
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gboolean autodel;
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/* MWI DCS types are handled in sms_mwi_dcs_decode */
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if (upper >= 0x8 && upper <= 0xE)
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return FALSE;
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upper = (dcs & 0xc0) >> 6;
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switch (upper) {
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case 0:
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case 1:
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autodel = upper;
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comp = (dcs & 0x20) ? TRUE : FALSE;
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if (dcs & 0x10)
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cl = (enum sms_class)(dcs & 0x03);
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else
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cl = SMS_CLASS_UNSPECIFIED;
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if (((dcs & 0x0c) >> 2) < 3)
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ch = (enum sms_charset) ((dcs & 0x0c) >> 2);
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else
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return FALSE;
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break;
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case 3:
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comp = FALSE;
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autodel = FALSE;
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if (dcs & 0x4)
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ch = SMS_CHARSET_8BIT;
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else
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ch = SMS_CHARSET_7BIT;
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cl = (enum sms_class)(dcs & 0x03);
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break;
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default:
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return FALSE;
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};
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if (compressed)
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*compressed = comp;
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if (autodelete)
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*autodelete = autodel;
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if (cls)
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*cls = cl;
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if (charset)
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*charset = ch;
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return TRUE;
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}
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gboolean sms_mwi_dcs_decode(guint8 dcs, enum sms_mwi_type *type,
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enum sms_charset *charset,
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gboolean *active, gboolean *discard)
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{
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guint8 upper = (dcs & 0xf0) >> 4;
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enum sms_mwi_type t;
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enum sms_charset ch;
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gboolean dis;
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gboolean act;
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if (upper < 0xC || upper > 0xE)
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return FALSE;
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upper = (dcs & 0x30) >> 4;
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if (upper == 0)
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dis = TRUE;
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else
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dis = FALSE;
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if (upper == 3)
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ch = SMS_CHARSET_UCS2;
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else
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ch = SMS_CHARSET_7BIT;
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act = dcs & 0x8;
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t = (enum sms_mwi_type) (dcs & 0x3);
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if (type)
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*type = t;
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if (charset)
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*charset = ch;
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if (active)
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*active = act;
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if (discard)
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*discard = dis;
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return TRUE;
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}
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int sms_udl_in_bytes(guint8 ud_len, guint8 dcs)
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{
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int len_7bit = (ud_len + 1) * 7 / 8;
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int len_8bit = ud_len;
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guint8 upper;
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if (dcs == 0)
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return len_7bit;
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upper = (dcs & 0xc0) >> 6;
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switch (upper) {
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case 0:
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case 1:
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if (dcs & 0x20) /* compressed */
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return len_8bit;
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switch ((dcs & 0x0c) >> 2) {
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case 0:
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return len_7bit;
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case 1:
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return len_8bit;
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case 2:
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return len_8bit;
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}
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return 0;
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case 2:
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return 0;
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case 3:
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switch ((dcs & 0x30) >> 4) {
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case 0:
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case 1:
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return len_7bit;
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case 2:
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return len_8bit;
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case 3:
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if (dcs & 0x4)
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return len_8bit;
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else
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return len_7bit;
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}
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break;
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default:
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break;
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};
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return 0;
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}
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static inline gboolean next_octet(const unsigned char *pdu, int len,
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int *offset, unsigned char *oct)
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{
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if (len == *offset)
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return FALSE;
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*oct = pdu[*offset];
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*offset = *offset + 1;
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return TRUE;
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}
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static inline gboolean set_octet(unsigned char *pdu, int *offset,
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unsigned char oct)
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{
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pdu[*offset] = oct;
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*offset = *offset + 1;
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return TRUE;
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}
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static gboolean encode_scts(const struct sms_scts *in, unsigned char *pdu,
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int *offset)
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{
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guint timezone;
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if (in->year > 99)
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return FALSE;
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if (in->month > 12)
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return FALSE;
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if (in->day > 31)
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return FALSE;
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if (in->hour > 23)
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return FALSE;
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if (in->minute > 59)
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return FALSE;
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if (in->second > 59)
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return FALSE;
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if ((in->timezone > 12*4-1) || (in->timezone < -(12*4-1)))
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return FALSE;
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pdu = pdu + *offset;
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pdu[0] = ((in->year / 10) & 0x0f) | (((in->year % 10) & 0x0f) << 4);
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pdu[1] = ((in->month / 10) & 0x0f) | (((in->month % 10) & 0x0f) << 4);
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pdu[2] = ((in->day / 10) & 0x0f) | (((in->day % 10) & 0x0f) << 4);
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pdu[3] = ((in->hour / 10) & 0x0f) | (((in->hour % 10) & 0x0f) << 4);
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pdu[4] = ((in->minute / 10) & 0x0f) | (((in->minute % 10) & 0x0f) << 4);
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pdu[5] = ((in->second / 10) & 0x0f) | (((in->second % 10) & 0x0f) << 4);
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timezone = abs(in->timezone);
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pdu[6] = ((timezone / 10) & 0x07) | (((timezone % 10) & 0x0f) << 4);
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if (in->timezone < 0)
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pdu[6] |= 0x8;
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*offset += 7;
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return TRUE;
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}
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static gboolean decode_scts(const unsigned char *pdu, int len,
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int *offset, struct sms_scts *out)
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{
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unsigned char oct = 0;
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if ((len - *offset) < 7)
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return FALSE;
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next_octet(pdu, len, offset, &oct);
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out->year = (oct & 0x0f) * 10 + ((oct & 0xf0) >> 4);
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next_octet(pdu, len, offset, &oct);
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out->month = (oct & 0x0f) * 10 + ((oct & 0xf0) >> 4);
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next_octet(pdu, len, offset, &oct);
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out->day = (oct & 0x0f) * 10 + ((oct & 0xf0) >> 4);
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next_octet(pdu, len, offset, &oct);
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out->hour = (oct & 0x0f) * 10 + ((oct & 0xf0) >> 4);
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next_octet(pdu, len, offset, &oct);
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out->minute = (oct & 0x0f) * 10 + ((oct & 0xf0) >> 4);
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next_octet(pdu, len, offset, &oct);
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out->second = (oct & 0x0f) * 10 + ((oct & 0xf0) >> 4);
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next_octet(pdu, len, offset, &oct);
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/* Time Zone indicates the difference, expressed in quarters
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* of an hour, between the local time and GMT. In the first of the two
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* semi‑octets, the first bit (bit 3 of the seventh octet of the
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* TP‑Service‑Centre‑Time‑Stamp field) represents the algebraic
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* sign of this difference (0: positive, 1: negative).
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*/
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out->timezone = (oct & 0x07) * 10 + ((oct & 0xf0) >> 4);
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if (oct & 0x08)
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out->timezone = out->timezone * -1;
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return TRUE;
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}
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static gboolean decode_validity_period(const unsigned char *pdu, int len,
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int *offset,
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enum sms_validity_period_format vpf,
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struct sms_validity_period *vp)
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{
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switch (vpf) {
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case SMS_VALIDITY_PERIOD_FORMAT_ABSENT:
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return TRUE;
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case SMS_VALIDITY_PERIOD_FORMAT_RELATIVE:
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if (!next_octet(pdu, len, offset, &vp->relative))
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return FALSE;
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return TRUE;
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case SMS_VALIDITY_PERIOD_FORMAT_ABSOLUTE:
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if (!decode_scts(pdu, len, offset, &vp->absolute))
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return FALSE;
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return TRUE;
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case SMS_VALIDITY_PERIOD_FORMAT_ENHANCED:
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/* TODO: Parse out enhanced structure properly
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* 23.040 Section 9.2.3.12.3
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*/
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if ((len - *offset) < 7)
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return FALSE;
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memcpy(vp->enhanced, pdu + *offset, 7);
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*offset = *offset + 7;
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return TRUE;
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default:
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break;
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}
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return FALSE;
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}
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static gboolean encode_validity_period(const struct sms_validity_period *vp,
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enum sms_validity_period_format vpf,
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unsigned char *pdu, int *offset)
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{
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switch (vpf) {
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case SMS_VALIDITY_PERIOD_FORMAT_ABSENT:
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return TRUE;
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case SMS_VALIDITY_PERIOD_FORMAT_RELATIVE:
|
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set_octet(pdu, offset, vp->relative);
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return TRUE;
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case SMS_VALIDITY_PERIOD_FORMAT_ABSOLUTE:
|
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return encode_scts(&vp->absolute, pdu, offset);
|
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case SMS_VALIDITY_PERIOD_FORMAT_ENHANCED:
|
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/* TODO: Write out proper enhanced VP structure */
|
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memcpy(pdu + *offset, vp->enhanced, 7);
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|
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*offset = *offset + 7;
|
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|
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return TRUE;
|
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default:
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break;
|
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}
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||
|
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return FALSE;
|
||
}
|
||
|
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static gboolean encode_address(const struct sms_address *in, gboolean sc,
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unsigned char *pdu, int *offset)
|
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{
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size_t len = strlen(in->address);
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unsigned char addr_len = 0;
|
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unsigned char p[10];
|
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|
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pdu = pdu + *offset;
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|
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if (len == 0 && sc) {
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pdu[0] = 0;
|
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*offset = *offset + 1;
|
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|
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return TRUE;
|
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}
|
||
|
||
if (len == 0)
|
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goto out;
|
||
|
||
if (in->number_type == SMS_NUMBER_TYPE_ALPHANUMERIC) {
|
||
long written;
|
||
long packed;
|
||
unsigned char *gsm;
|
||
unsigned char *r;
|
||
|
||
if (len > 11)
|
||
return FALSE;
|
||
|
||
gsm = convert_utf8_to_gsm(in->address, len, NULL, &written, 0);
|
||
|
||
if (!gsm)
|
||
return FALSE;
|
||
|
||
r = pack_7bit_own_buf(gsm, written, 0, FALSE, &packed, 0, p);
|
||
|
||
g_free(gsm);
|
||
|
||
if (r == NULL)
|
||
return FALSE;
|
||
|
||
if (sc)
|
||
addr_len = packed + 1;
|
||
else
|
||
addr_len = (written * 7 + 3) / 4;
|
||
} else {
|
||
int j = 0;
|
||
int i;
|
||
int c;
|
||
|
||
if (len > 20)
|
||
return FALSE;
|
||
|
||
for (i = 0; in->address[i]; i++) {
|
||
c = to_semi_oct(in->address[i]);
|
||
|
||
if (c < 0)
|
||
return FALSE;
|
||
|
||
if ((i % 2) == 0) {
|
||
p[j] = c;
|
||
} else {
|
||
p[j] |= c << 4;
|
||
j++;
|
||
}
|
||
}
|
||
|
||
if ((i % 2) == 1) {
|
||
p[j] |= 0xf0;
|
||
j++;
|
||
}
|
||
|
||
if (sc)
|
||
addr_len = j + 1;
|
||
else
|
||
addr_len = i;
|
||
}
|
||
|
||
out:
|
||
pdu[0] = addr_len;
|
||
pdu[1] = (in->number_type << 4) | in->numbering_plan | 0x80;
|
||
memcpy(pdu+2, p, (sc ? addr_len - 1 : (addr_len + 1) / 2));
|
||
|
||
*offset = *offset + 2 + (sc ? addr_len - 1 : (addr_len + 1) / 2);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean decode_address(const unsigned char *pdu, int len,
|
||
int *offset, gboolean sc,
|
||
struct sms_address *out)
|
||
{
|
||
unsigned char addr_len;
|
||
unsigned char addr_type;
|
||
int byte_len;
|
||
int i;
|
||
|
||
if (!next_octet(pdu, len, offset, &addr_len))
|
||
return FALSE;
|
||
|
||
if (sc && addr_len == 0) {
|
||
out->address[0] = '\0';
|
||
return TRUE;
|
||
}
|
||
|
||
if (!next_octet(pdu, len, offset, &addr_type))
|
||
return FALSE;
|
||
|
||
if (sc)
|
||
byte_len = addr_len - 1;
|
||
else
|
||
byte_len = (addr_len + 1) / 2;
|
||
|
||
if ((len - *offset) < byte_len)
|
||
return FALSE;
|
||
|
||
out->number_type = bit_field(addr_type, 4, 3);
|
||
out->numbering_plan = bit_field(addr_type, 0, 4);
|
||
|
||
if (out->number_type != SMS_NUMBER_TYPE_ALPHANUMERIC) {
|
||
extract_bcd_number(pdu+*offset, byte_len, out->address);
|
||
*offset += byte_len;
|
||
} else {
|
||
int chars;
|
||
long written;
|
||
unsigned char *res;
|
||
char *utf8;
|
||
|
||
if (sc)
|
||
chars = byte_len * 8 / 7;
|
||
else
|
||
chars = addr_len * 4 / 7;
|
||
|
||
/* This cannot happen according to 24.011, however
|
||
* nothing is said in 23.040
|
||
*/
|
||
if (chars == 0) {
|
||
out->address[0] = '\0';
|
||
return TRUE;
|
||
}
|
||
|
||
res = unpack_7bit(pdu + *offset, byte_len, 0, FALSE, chars,
|
||
&written, 0);
|
||
|
||
*offset = *offset + (addr_len + 1) / 2;
|
||
|
||
if (!res)
|
||
return FALSE;
|
||
|
||
utf8 = convert_gsm_to_utf8(res, written, NULL, NULL, 0);
|
||
|
||
g_free(res);
|
||
|
||
if (!utf8)
|
||
return FALSE;
|
||
|
||
if (strlen(utf8) > 20) {
|
||
g_free(utf8);
|
||
return FALSE;
|
||
}
|
||
|
||
strcpy(out->address, utf8);
|
||
|
||
g_free(utf8);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_deliver(const struct sms_deliver *in, unsigned char *pdu,
|
||
int *offset)
|
||
{
|
||
int ud_oct_len;
|
||
unsigned char oct;
|
||
|
||
oct = 0;
|
||
|
||
if (!in->mms)
|
||
oct |= 1 << 2;
|
||
|
||
if (in->sri)
|
||
oct |= 1 << 5;
|
||
|
||
if (in->rp)
|
||
oct |= 1 << 7;
|
||
|
||
if (in->udhi)
|
||
oct |= 1 << 6;
|
||
|
||
set_octet(pdu, offset, oct);
|
||
|
||
if (encode_address(&in->oaddr, FALSE, pdu, offset) == FALSE)
|
||
return FALSE;
|
||
|
||
set_octet(pdu, offset, in->pid);
|
||
set_octet(pdu, offset, in->dcs);
|
||
|
||
if (encode_scts(&in->scts, pdu, offset) == FALSE)
|
||
return FALSE;
|
||
|
||
set_octet(pdu, offset, in->udl);
|
||
|
||
ud_oct_len = sms_udl_in_bytes(in->udl, in->dcs);
|
||
|
||
memcpy(pdu + *offset, in->ud, ud_oct_len);
|
||
|
||
*offset = *offset + ud_oct_len;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean decode_deliver(const unsigned char *pdu, int len,
|
||
struct sms *out)
|
||
{
|
||
int offset = 0;
|
||
int expected;
|
||
unsigned char octet;
|
||
|
||
out->type = SMS_TYPE_DELIVER;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
out->deliver.mms = !is_bit_set(octet, 2);
|
||
out->deliver.sri = is_bit_set(octet, 5);
|
||
out->deliver.udhi = is_bit_set(octet, 6);
|
||
out->deliver.rp = is_bit_set(octet, 7);
|
||
|
||
if (!decode_address(pdu, len, &offset, FALSE, &out->deliver.oaddr))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->deliver.pid))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->deliver.dcs))
|
||
return FALSE;
|
||
|
||
if (!decode_scts(pdu, len, &offset, &out->deliver.scts))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->deliver.udl))
|
||
return FALSE;
|
||
|
||
expected = sms_udl_in_bytes(out->deliver.udl, out->deliver.dcs);
|
||
|
||
if ((len - offset) < expected)
|
||
return FALSE;
|
||
|
||
memcpy(out->deliver.ud, pdu+offset, expected);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_submit_ack_report(const struct sms_submit_ack_report *in,
|
||
unsigned char *pdu, int *offset)
|
||
{
|
||
unsigned char oct;
|
||
|
||
oct = 1;
|
||
|
||
if (in->udhi)
|
||
oct |= 1 << 6;
|
||
|
||
set_octet(pdu, offset, oct);
|
||
|
||
set_octet(pdu, offset, in->pi);
|
||
|
||
if (!encode_scts(&in->scts, pdu, offset))
|
||
return FALSE;
|
||
|
||
if (in->pi & 0x1)
|
||
set_octet(pdu, offset, in->pid);
|
||
|
||
if (in->pi & 0x2)
|
||
set_octet(pdu, offset, in->dcs);
|
||
|
||
if (in->pi & 0x4) {
|
||
int ud_oct_len = sms_udl_in_bytes(in->udl, in->dcs);
|
||
|
||
set_octet(pdu, offset, in->udl);
|
||
memcpy(pdu + *offset, in->ud, ud_oct_len);
|
||
*offset = *offset + ud_oct_len;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_submit_err_report(const struct sms_submit_err_report *in,
|
||
unsigned char *pdu, int *offset)
|
||
{
|
||
unsigned char oct;
|
||
|
||
oct = 0x1;
|
||
|
||
if (in->udhi)
|
||
oct |= 1 << 6;
|
||
|
||
set_octet(pdu, offset, oct);
|
||
|
||
set_octet(pdu, offset, in->fcs);
|
||
|
||
set_octet(pdu, offset, in->pi);
|
||
|
||
if (!encode_scts(&in->scts, pdu, offset))
|
||
return FALSE;
|
||
|
||
if (in->pi & 0x1)
|
||
set_octet(pdu, offset, in->pid);
|
||
|
||
if (in->pi & 0x2)
|
||
set_octet(pdu, offset, in->dcs);
|
||
|
||
if (in->pi & 0x4) {
|
||
int ud_oct_len = sms_udl_in_bytes(in->udl, in->dcs);
|
||
|
||
set_octet(pdu, offset, in->udl);
|
||
memcpy(pdu + *offset, in->ud, ud_oct_len);
|
||
*offset = *offset + ud_oct_len;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean decode_submit_report(const unsigned char *pdu, int len,
|
||
struct sms *out)
|
||
{
|
||
int offset = 0;
|
||
unsigned char octet;
|
||
gboolean udhi;
|
||
guint8 fcs;
|
||
guint8 pi;
|
||
struct sms_scts *scts;
|
||
guint8 pid = 0;
|
||
guint8 dcs = 0;
|
||
guint8 udl = 0;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
udhi = is_bit_set(octet, 6);
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
/* At this point we don't know whether this is an ACK or an ERROR.
|
||
* FCS can only have values 0x80 and above, as 0x00 - 0x7F are reserved
|
||
* according to 3GPP 23.040. For PI, the values can be only in
|
||
* bit 0, 1, 2 with the 7th bit reserved as an extension. Since
|
||
* bits 3-6 are not used, assume no extension is feasible, so if the
|
||
* value of this octet is >= 0x80, this is an FCS and thus an error
|
||
* report tpdu.
|
||
*/
|
||
|
||
if (octet >= 0x80) {
|
||
out->type = SMS_TYPE_SUBMIT_REPORT_ERROR;
|
||
fcs = octet;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
scts = &out->submit_err_report.scts;
|
||
} else {
|
||
scts = &out->submit_ack_report.scts;
|
||
out->type = SMS_TYPE_SUBMIT_REPORT_ACK;
|
||
}
|
||
|
||
pi = octet & 0x07;
|
||
|
||
if (!decode_scts(pdu, len, &offset, scts))
|
||
return FALSE;
|
||
|
||
if (pi & 0x01) {
|
||
if (!next_octet(pdu, len, &offset, &pid))
|
||
return FALSE;
|
||
}
|
||
|
||
if (pi & 0x02) {
|
||
if (!next_octet(pdu, len, &offset, &dcs))
|
||
return FALSE;
|
||
}
|
||
|
||
if (out->type == SMS_TYPE_SUBMIT_REPORT_ERROR) {
|
||
out->submit_err_report.udhi = udhi;
|
||
out->submit_err_report.fcs = fcs;
|
||
out->submit_err_report.pi = pi;
|
||
out->submit_err_report.pid = pid;
|
||
out->submit_err_report.dcs = dcs;
|
||
} else {
|
||
out->submit_ack_report.udhi = udhi;
|
||
out->submit_ack_report.pi = pi;
|
||
out->submit_ack_report.pid = pid;
|
||
out->submit_ack_report.dcs = dcs;
|
||
}
|
||
|
||
if (pi & 0x04) {
|
||
int expected;
|
||
|
||
if (!next_octet(pdu, len, &offset, &udl))
|
||
return FALSE;
|
||
|
||
expected = sms_udl_in_bytes(udl, dcs);
|
||
|
||
if ((len - offset) < expected)
|
||
return FALSE;
|
||
|
||
if (out->type == SMS_TYPE_SUBMIT_REPORT_ERROR) {
|
||
out->submit_err_report.udl = udl;
|
||
memcpy(out->submit_err_report.ud,
|
||
pdu+offset, expected);
|
||
} else {
|
||
out->submit_ack_report.udl = udl;
|
||
memcpy(out->submit_ack_report.ud,
|
||
pdu+offset, expected);
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_status_report(const struct sms_status_report *in,
|
||
unsigned char *pdu, int *offset)
|
||
{
|
||
unsigned char octet;
|
||
|
||
octet = 0x2;
|
||
|
||
if (!in->mms)
|
||
octet |= 1 << 2;
|
||
|
||
if (!in->srq)
|
||
octet |= 1 << 5;
|
||
|
||
if (!in->udhi)
|
||
octet |= 1 << 6;
|
||
|
||
set_octet(pdu, offset, octet);
|
||
|
||
set_octet(pdu, offset, in->mr);
|
||
|
||
if (!encode_address(&in->raddr, FALSE, pdu, offset))
|
||
return FALSE;
|
||
|
||
if (!encode_scts(&in->scts, pdu, offset))
|
||
return FALSE;
|
||
|
||
if (!encode_scts(&in->dt, pdu, offset))
|
||
return FALSE;
|
||
|
||
octet = in->st;
|
||
set_octet(pdu, offset, octet);
|
||
|
||
if (in->pi == 0)
|
||
return TRUE;
|
||
|
||
set_octet(pdu, offset, in->pi);
|
||
|
||
if (in->pi & 0x01)
|
||
set_octet(pdu, offset, in->pid);
|
||
|
||
if (in->pi & 0x02)
|
||
set_octet(pdu, offset, in->dcs);
|
||
|
||
if (in->pi & 0x4) {
|
||
int ud_oct_len = sms_udl_in_bytes(in->udl, in->dcs);
|
||
|
||
set_octet(pdu, offset, in->udl);
|
||
memcpy(pdu + *offset, in->ud, ud_oct_len);
|
||
*offset = *offset + ud_oct_len;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean decode_status_report(const unsigned char *pdu, int len,
|
||
struct sms *out)
|
||
{
|
||
int offset = 0;
|
||
unsigned char octet;
|
||
|
||
out->type = SMS_TYPE_STATUS_REPORT;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
out->status_report.mms = !is_bit_set(octet, 2);
|
||
out->status_report.srq = is_bit_set(octet, 5);
|
||
out->status_report.udhi = is_bit_set(octet, 6);
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->status_report.mr))
|
||
return FALSE;
|
||
|
||
if (!decode_address(pdu, len, &offset, FALSE,
|
||
&out->status_report.raddr))
|
||
return FALSE;
|
||
|
||
if (!decode_scts(pdu, len, &offset, &out->status_report.scts))
|
||
return FALSE;
|
||
|
||
if (!decode_scts(pdu, len, &offset, &out->status_report.dt))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
out->status_report.st = octet;
|
||
|
||
/* We have to be careful here, PI is labeled as Optional in 23.040
|
||
* which is different from RP-ERR & RP-ACK for both Deliver & Submit
|
||
* reports
|
||
*/
|
||
|
||
if ((len - offset) == 0)
|
||
return TRUE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
out->status_report.pi = octet & 0x07;
|
||
|
||
if (out->status_report.pi & 0x01) {
|
||
if (!next_octet(pdu, len, &offset, &out->status_report.pid))
|
||
return FALSE;
|
||
}
|
||
|
||
if (out->status_report.pi & 0x02) {
|
||
if (!next_octet(pdu, len, &offset, &out->status_report.dcs))
|
||
return FALSE;
|
||
} else
|
||
out->status_report.dcs = 0;
|
||
|
||
if (out->status_report.pi & 0x04) {
|
||
int expected;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->status_report.udl))
|
||
return FALSE;
|
||
|
||
expected = sms_udl_in_bytes(out->status_report.udl,
|
||
out->status_report.dcs);
|
||
|
||
if ((len - offset) < expected)
|
||
return FALSE;
|
||
|
||
memcpy(out->status_report.ud, pdu+offset, expected);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_deliver_ack_report(const struct sms_deliver_ack_report *in,
|
||
unsigned char *pdu,
|
||
int *offset)
|
||
{
|
||
unsigned char oct;
|
||
|
||
oct = 0;
|
||
|
||
if (in->udhi)
|
||
oct |= 1 << 6;
|
||
|
||
set_octet(pdu, offset, oct);
|
||
|
||
set_octet(pdu, offset, in->pi);
|
||
|
||
if (in->pi & 0x1)
|
||
set_octet(pdu, offset, in->pid);
|
||
|
||
if (in->pi & 0x2)
|
||
set_octet(pdu, offset, in->dcs);
|
||
|
||
if (in->pi & 0x4) {
|
||
int ud_oct_len = sms_udl_in_bytes(in->udl, in->dcs);
|
||
|
||
set_octet(pdu, offset, in->udl);
|
||
memcpy(pdu + *offset, in->ud, ud_oct_len);
|
||
*offset = *offset + ud_oct_len;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_deliver_err_report(const struct sms_deliver_err_report *in,
|
||
unsigned char *pdu,
|
||
int *offset)
|
||
{
|
||
unsigned char oct;
|
||
|
||
oct = 0;
|
||
|
||
if (in->udhi)
|
||
oct |= 1 << 6;
|
||
|
||
set_octet(pdu, offset, oct);
|
||
|
||
set_octet(pdu, offset, in->fcs);
|
||
|
||
set_octet(pdu, offset, in->pi);
|
||
|
||
if (in->pi & 0x1)
|
||
set_octet(pdu, offset, in->pid);
|
||
|
||
if (in->pi & 0x2)
|
||
set_octet(pdu, offset, in->dcs);
|
||
|
||
if (in->pi & 0x4) {
|
||
int ud_oct_len = sms_udl_in_bytes(in->udl, in->dcs);
|
||
|
||
set_octet(pdu, offset, in->udl);
|
||
memcpy(pdu + *offset, in->ud, ud_oct_len);
|
||
*offset = *offset + ud_oct_len;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean decode_deliver_report(const unsigned char *pdu, int len,
|
||
struct sms *out)
|
||
{
|
||
int offset = 0;
|
||
unsigned char octet;
|
||
gboolean udhi;
|
||
guint8 fcs;
|
||
guint8 pi;
|
||
guint8 pid = 0;
|
||
guint8 dcs = 0;
|
||
guint8 udl = 0;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
udhi = is_bit_set(octet, 6);
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
/* At this point we don't know whether this is an ACK or an ERROR.
|
||
* FCS can only have values 0x80 and above, as 0x00 - 0x7F are reserved
|
||
* according to 3GPP 23.040. For PI, the values can be only in
|
||
* bit 0, 1, 2 with the 7th bit reserved as an extension. Since
|
||
* bits 3-6 are not used, assume no extension is feasible, so if the
|
||
* value of this octet is >= 0x80, this is an FCS and thus an error
|
||
* report tpdu.
|
||
*/
|
||
|
||
if (octet >= 0x80) {
|
||
out->type = SMS_TYPE_DELIVER_REPORT_ERROR;
|
||
fcs = octet;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
} else
|
||
out->type = SMS_TYPE_DELIVER_REPORT_ACK;
|
||
|
||
pi = octet & 0x07;
|
||
|
||
if (pi & 0x01) {
|
||
if (!next_octet(pdu, len, &offset, &pid))
|
||
return FALSE;
|
||
}
|
||
|
||
if (pi & 0x02) {
|
||
if (!next_octet(pdu, len, &offset, &dcs))
|
||
return FALSE;
|
||
}
|
||
|
||
if (out->type == SMS_TYPE_DELIVER_REPORT_ERROR) {
|
||
out->deliver_err_report.udhi = udhi;
|
||
out->deliver_err_report.fcs = fcs;
|
||
out->deliver_err_report.pi = pi;
|
||
out->deliver_err_report.pid = pid;
|
||
out->deliver_err_report.dcs = dcs;
|
||
} else {
|
||
out->deliver_ack_report.udhi = udhi;
|
||
out->deliver_ack_report.pi = pi;
|
||
out->deliver_ack_report.pid = pid;
|
||
out->deliver_ack_report.dcs = dcs;
|
||
}
|
||
|
||
if (pi & 0x04) {
|
||
int expected;
|
||
|
||
if (!next_octet(pdu, len, &offset, &udl))
|
||
return FALSE;
|
||
|
||
expected = sms_udl_in_bytes(udl, dcs);
|
||
|
||
if ((len - offset) < expected)
|
||
return FALSE;
|
||
|
||
if (out->type == SMS_TYPE_DELIVER_REPORT_ERROR) {
|
||
out->deliver_err_report.udl = udl;
|
||
memcpy(out->deliver_err_report.ud,
|
||
pdu+offset, expected);
|
||
} else {
|
||
out->deliver_ack_report.udl = udl;
|
||
memcpy(out->deliver_ack_report.ud,
|
||
pdu+offset, expected);
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_submit(const struct sms_submit *in,
|
||
unsigned char *pdu, int *offset)
|
||
{
|
||
unsigned char octet;
|
||
int ud_oct_len;
|
||
|
||
/* SMS Submit */
|
||
octet = 0x1;
|
||
|
||
if (in->rd)
|
||
octet |= 1 << 2;
|
||
|
||
if (in->rp)
|
||
octet |= 1 << 7;
|
||
|
||
octet |= in->vpf << 3;
|
||
|
||
if (in->udhi)
|
||
octet |= 1 << 6;
|
||
|
||
if (in->srr)
|
||
octet |= 1 << 5;
|
||
|
||
set_octet(pdu, offset, octet);
|
||
|
||
set_octet(pdu, offset, in->mr);
|
||
|
||
if (encode_address(&in->daddr, FALSE, pdu, offset) == FALSE)
|
||
return FALSE;
|
||
|
||
set_octet(pdu, offset, in->pid);
|
||
|
||
set_octet(pdu, offset, in->dcs);
|
||
|
||
if (!encode_validity_period(&in->vp, in->vpf, pdu, offset))
|
||
return FALSE;
|
||
|
||
set_octet(pdu, offset, in->udl);
|
||
|
||
ud_oct_len = sms_udl_in_bytes(in->udl, in->dcs);
|
||
|
||
memcpy(pdu + *offset, in->ud, ud_oct_len);
|
||
|
||
*offset = *offset + ud_oct_len;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean decode_submit(const unsigned char *pdu, int len,
|
||
struct sms *out)
|
||
{
|
||
unsigned char octet;
|
||
int offset = 0;
|
||
int expected;
|
||
|
||
out->type = SMS_TYPE_SUBMIT;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
out->submit.rd = is_bit_set(octet, 2);
|
||
out->submit.vpf = bit_field(octet, 3, 2);
|
||
out->submit.rp = is_bit_set(octet, 7);
|
||
out->submit.udhi = is_bit_set(octet, 6);
|
||
out->submit.srr = is_bit_set(octet, 5);
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->submit.mr))
|
||
return FALSE;
|
||
|
||
if (!decode_address(pdu, len, &offset, FALSE, &out->submit.daddr))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->submit.pid))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->submit.dcs))
|
||
return FALSE;
|
||
|
||
if (!decode_validity_period(pdu, len, &offset, out->submit.vpf,
|
||
&out->submit.vp))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->submit.udl))
|
||
return FALSE;
|
||
|
||
expected = sms_udl_in_bytes(out->submit.udl, out->submit.dcs);
|
||
|
||
if ((len - offset) < expected)
|
||
return FALSE;
|
||
|
||
memcpy(out->submit.ud, pdu+offset, expected);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean encode_command(const struct sms_command *in,
|
||
unsigned char *pdu, int *offset)
|
||
{
|
||
unsigned char octet;
|
||
|
||
octet = 0x2;
|
||
|
||
if (in->udhi)
|
||
octet |= 1 << 6;
|
||
|
||
if (in->srr)
|
||
octet |= 1 << 5;
|
||
|
||
set_octet(pdu, offset, octet);
|
||
|
||
set_octet(pdu, offset, in->mr);
|
||
|
||
set_octet(pdu, offset, in->pid);
|
||
|
||
octet = in->ct;
|
||
set_octet(pdu, offset, octet);
|
||
|
||
set_octet(pdu, offset, in->mn);
|
||
|
||
if (!encode_address(&in->daddr, FALSE, pdu, offset))
|
||
return FALSE;
|
||
|
||
set_octet(pdu, offset, in->cdl);
|
||
|
||
memcpy(pdu + *offset, in->cd, in->cdl);
|
||
|
||
*offset = *offset + in->cdl;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean decode_command(const unsigned char *pdu, int len,
|
||
struct sms *out)
|
||
{
|
||
unsigned char octet;
|
||
int offset = 0;
|
||
|
||
out->type = SMS_TYPE_COMMAND;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
out->command.udhi = is_bit_set(octet, 6);
|
||
out->command.srr = is_bit_set(octet, 5);
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->command.mr))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->command.pid))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &octet))
|
||
return FALSE;
|
||
|
||
out->command.ct = octet;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->command.mn))
|
||
return FALSE;
|
||
|
||
if (!decode_address(pdu, len, &offset, FALSE, &out->command.daddr))
|
||
return FALSE;
|
||
|
||
if (!next_octet(pdu, len, &offset, &out->command.cdl))
|
||
return FALSE;
|
||
|
||
if ((len - offset) < out->command.cdl)
|
||
return FALSE;
|
||
|
||
memcpy(out->command.cd, pdu+offset, out->command.cdl);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Buffer must be at least 164 (tpud) + 12 (SC address) bytes long */
|
||
gboolean sms_encode(const struct sms *in, int *len, int *tpdu_len,
|
||
unsigned char *pdu)
|
||
{
|
||
int offset = 0;
|
||
int tpdu_start;
|
||
|
||
if (in->type == SMS_TYPE_DELIVER || in->type == SMS_TYPE_SUBMIT ||
|
||
in->type == SMS_TYPE_COMMAND)
|
||
if (!encode_address(&in->sc_addr, TRUE, pdu, &offset))
|
||
return FALSE;
|
||
|
||
tpdu_start = offset;
|
||
|
||
switch (in->type) {
|
||
case SMS_TYPE_DELIVER:
|
||
if (encode_deliver(&in->deliver, pdu, &offset) == FALSE)
|
||
return FALSE;
|
||
break;
|
||
case SMS_TYPE_DELIVER_REPORT_ACK:
|
||
if (!encode_deliver_ack_report(&in->deliver_ack_report, pdu,
|
||
&offset))
|
||
return FALSE;
|
||
break;
|
||
case SMS_TYPE_DELIVER_REPORT_ERROR:
|
||
if (!encode_deliver_err_report(&in->deliver_err_report, pdu,
|
||
&offset))
|
||
return FALSE;
|
||
break;
|
||
case SMS_TYPE_STATUS_REPORT:
|
||
if (!encode_status_report(&in->status_report, pdu, &offset))
|
||
return FALSE;
|
||
break;
|
||
case SMS_TYPE_SUBMIT:
|
||
if (!encode_submit(&in->submit, pdu, &offset))
|
||
return FALSE;
|
||
break;
|
||
case SMS_TYPE_SUBMIT_REPORT_ACK:
|
||
if (!encode_submit_ack_report(&in->submit_ack_report, pdu,
|
||
&offset))
|
||
return FALSE;
|
||
break;
|
||
case SMS_TYPE_SUBMIT_REPORT_ERROR:
|
||
if (!encode_submit_err_report(&in->submit_err_report, pdu,
|
||
&offset))
|
||
return FALSE;
|
||
break;
|
||
case SMS_TYPE_COMMAND:
|
||
if (!encode_command(&in->command, pdu, &offset))
|
||
return FALSE;
|
||
break;
|
||
default:
|
||
return FALSE;
|
||
};
|
||
|
||
if (tpdu_len)
|
||
*tpdu_len = offset - tpdu_start;
|
||
|
||
if (len)
|
||
*len = offset;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
gboolean sms_decode(const unsigned char *pdu, int len, gboolean outgoing,
|
||
int tpdu_len, struct sms *out)
|
||
{
|
||
unsigned char type;
|
||
int offset = 0;
|
||
|
||
if (!out)
|
||
return FALSE;
|
||
|
||
if (len == 0)
|
||
return FALSE;
|
||
|
||
if (tpdu_len < len) {
|
||
if (!decode_address(pdu, len, &offset, TRUE, &out->sc_addr))
|
||
return FALSE;
|
||
}
|
||
|
||
if ((len - offset) < tpdu_len)
|
||
return FALSE;
|
||
|
||
/* 23.040 9.2.3.1 */
|
||
type = pdu[offset] & 0x3;
|
||
|
||
if (outgoing)
|
||
type |= 0x4;
|
||
|
||
pdu = pdu + offset;
|
||
|
||
switch (type) {
|
||
case 0:
|
||
return decode_deliver(pdu, tpdu_len, out);
|
||
case 1:
|
||
return decode_submit_report(pdu, tpdu_len, out);
|
||
case 2:
|
||
return decode_status_report(pdu, tpdu_len, out);
|
||
case 3:
|
||
/* According to 9.2.3.1, Reserved treated as deliver */
|
||
return decode_deliver(pdu, tpdu_len, out);
|
||
case 4:
|
||
return decode_deliver_report(pdu, tpdu_len, out);
|
||
case 5:
|
||
return decode_submit(pdu, tpdu_len, out);
|
||
case 6:
|
||
return decode_command(pdu, tpdu_len, out);
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
const guint8 *sms_extract_common(const struct sms *sms, gboolean *out_udhi,
|
||
guint8 *out_dcs, guint8 *out_udl,
|
||
guint8 *out_max)
|
||
{
|
||
const guint8 *ud = NULL;
|
||
guint8 udl;
|
||
guint8 max;
|
||
gboolean udhi;
|
||
guint8 dcs;
|
||
|
||
switch (sms->type) {
|
||
case SMS_TYPE_DELIVER:
|
||
udhi = sms->deliver.udhi;
|
||
ud = sms->deliver.ud;
|
||
udl = sms->deliver.udl;
|
||
dcs = sms->deliver.dcs;
|
||
max = sizeof(sms->deliver.ud);
|
||
break;
|
||
case SMS_TYPE_DELIVER_REPORT_ACK:
|
||
udhi = sms->deliver_ack_report.udhi;
|
||
ud = sms->deliver_ack_report.ud;
|
||
udl = sms->deliver_ack_report.udl;
|
||
dcs = sms->deliver_ack_report.dcs;
|
||
max = sizeof(sms->deliver_ack_report.ud);
|
||
break;
|
||
case SMS_TYPE_DELIVER_REPORT_ERROR:
|
||
udhi = sms->deliver_err_report.udhi;
|
||
ud = sms->deliver_err_report.ud;
|
||
udl = sms->deliver_err_report.udl;
|
||
dcs = sms->deliver_err_report.dcs;
|
||
max = sizeof(sms->deliver_err_report.ud);
|
||
break;
|
||
case SMS_TYPE_STATUS_REPORT:
|
||
udhi = sms->status_report.udhi;
|
||
ud = sms->status_report.ud;
|
||
udl = sms->status_report.udl;
|
||
dcs = sms->status_report.dcs;
|
||
max = sizeof(sms->status_report.ud);
|
||
break;
|
||
case SMS_TYPE_SUBMIT:
|
||
udhi = sms->submit.udhi;
|
||
ud = sms->submit.ud;
|
||
udl = sms->submit.udl;
|
||
dcs = sms->submit.dcs;
|
||
max = sizeof(sms->submit.ud);
|
||
break;
|
||
case SMS_TYPE_SUBMIT_REPORT_ACK:
|
||
udhi = sms->submit_ack_report.udhi;
|
||
ud = sms->submit_ack_report.ud;
|
||
udl = sms->submit_ack_report.udl;
|
||
dcs = sms->submit_ack_report.dcs;
|
||
max = sizeof(sms->submit_ack_report.ud);
|
||
break;
|
||
case SMS_TYPE_SUBMIT_REPORT_ERROR:
|
||
udhi = sms->submit_err_report.udhi;
|
||
ud = sms->submit_err_report.ud;
|
||
udl = sms->submit_err_report.udl;
|
||
dcs = sms->submit_err_report.dcs;
|
||
max = sizeof(sms->submit_err_report.ud);
|
||
break;
|
||
case SMS_TYPE_COMMAND:
|
||
udhi = sms->command.udhi;
|
||
ud = sms->command.cd;
|
||
udl = sms->command.cdl;
|
||
dcs = 0;
|
||
max = sizeof(sms->command.cd);
|
||
break;
|
||
};
|
||
|
||
if (!ud)
|
||
return NULL;
|
||
|
||
if (out_udhi)
|
||
*out_udhi = udhi;
|
||
|
||
if (out_dcs)
|
||
*out_dcs = dcs;
|
||
|
||
if (out_udl)
|
||
*out_udl = udl;
|
||
|
||
if (out_max)
|
||
*out_max = max;
|
||
|
||
return ud;
|
||
}
|
||
|
||
gboolean sms_udh_iter_init(const struct sms *sms, struct sms_udh_iter *iter)
|
||
{
|
||
gboolean udhi = FALSE;
|
||
const guint8 *hdr;
|
||
guint8 udl;
|
||
guint8 dcs;
|
||
guint8 max_len;
|
||
guint8 offset;
|
||
guint8 max_offset;
|
||
guint8 max_ud_len;
|
||
|
||
hdr = sms_extract_common(sms, &udhi, &dcs, &udl, &max_ud_len);
|
||
|
||
if (!hdr)
|
||
return FALSE;
|
||
|
||
if (!udhi)
|
||
return FALSE;
|
||
|
||
if (sms->type == SMS_TYPE_COMMAND)
|
||
max_len = udl;
|
||
else
|
||
max_len = sms_udl_in_bytes(udl, dcs);
|
||
|
||
/* Can't actually store the HDL + IEI / IEL */
|
||
if (max_len < 3)
|
||
return FALSE;
|
||
|
||
if (max_len > max_ud_len)
|
||
return FALSE;
|
||
|
||
/* Must have at least one information-element if udhi is true */
|
||
if (hdr[0] < 2)
|
||
return FALSE;
|
||
|
||
if (hdr[0] >= max_len)
|
||
return FALSE;
|
||
|
||
/* According to 23.040: If the length of the User Data Header is
|
||
* such that there are too few or too many octets in the final
|
||
* Information Element then the whole User Data Header shall be
|
||
* ignored.
|
||
*/
|
||
|
||
max_offset = hdr[0] + 1;
|
||
offset = 1;
|
||
do {
|
||
if ((offset + 2) > max_offset)
|
||
return FALSE;
|
||
|
||
if ((offset + 2 + hdr[offset + 1]) > max_offset)
|
||
return FALSE;
|
||
|
||
offset = offset + 2 + hdr[offset + 1];
|
||
} while (offset < max_offset);
|
||
|
||
if (offset != max_offset)
|
||
return FALSE;
|
||
|
||
iter->sms = sms;
|
||
iter->data = hdr;
|
||
iter->offset = 1;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
guint8 sms_udh_iter_get_udh_length(struct sms_udh_iter *iter)
|
||
{
|
||
return iter->data[0];
|
||
}
|
||
|
||
const guint8 *sms_udh_iter_get_ud_after_header(struct sms_udh_iter *iter)
|
||
{
|
||
return iter->data + iter->data[0] + 1;
|
||
}
|
||
|
||
enum sms_iei sms_udh_iter_get_ie_type(struct sms_udh_iter *iter)
|
||
{
|
||
if (iter->offset > iter->data[0])
|
||
return SMS_IEI_INVALID;
|
||
|
||
return (enum sms_iei) iter->data[iter->offset];
|
||
}
|
||
|
||
guint8 sms_udh_iter_get_ie_length(struct sms_udh_iter *iter)
|
||
{
|
||
guint8 ie_len;
|
||
|
||
ie_len = iter->data[iter->offset + 1];
|
||
|
||
return ie_len;
|
||
}
|
||
|
||
void sms_udh_iter_get_ie_data(struct sms_udh_iter *iter, guint8 *data)
|
||
{
|
||
guint8 ie_len;
|
||
|
||
ie_len = iter->data[iter->offset + 1];
|
||
|
||
memcpy(data, &iter->data[iter->offset + 2], ie_len);
|
||
}
|
||
|
||
gboolean sms_udh_iter_has_next(struct sms_udh_iter *iter)
|
||
{
|
||
guint8 total_len = iter->data[0];
|
||
guint8 cur_ie_len = iter->data[iter->offset + 1];
|
||
|
||
if ((iter->offset + 2 + cur_ie_len) > total_len)
|
||
return FALSE;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
gboolean sms_udh_iter_next(struct sms_udh_iter *iter)
|
||
{
|
||
if (iter->offset > iter->data[0])
|
||
return FALSE;
|
||
|
||
iter->offset = iter->offset + 2 + iter->data[iter->offset + 1];
|
||
|
||
if (iter->offset > iter->data[0])
|
||
return FALSE;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Returns both forms of time. The time_t value returns the time in local
|
||
* timezone. The struct tm is filled out with the remote time information
|
||
*/
|
||
time_t sms_scts_to_time(const struct sms_scts *scts, struct tm *remote)
|
||
{
|
||
struct tm t;
|
||
time_t ret;
|
||
|
||
t.tm_sec = scts->second;
|
||
t.tm_min = scts->minute;
|
||
t.tm_hour = scts->hour;
|
||
t.tm_mday = scts->day;
|
||
t.tm_mon = scts->month - 1;
|
||
t.tm_isdst = -1;
|
||
|
||
if (scts->year > 80)
|
||
t.tm_year = scts->year;
|
||
else
|
||
t.tm_year = scts->year + 100;
|
||
|
||
ret = mktime(&t);
|
||
|
||
/* Adjust local time by the local timezone information */
|
||
ret += t.tm_gmtoff;
|
||
|
||
/* Set the proper timezone on the remote side */
|
||
t.tm_gmtoff = scts->timezone * 15 * 60;
|
||
|
||
/* Now adjust by the remote timezone information */
|
||
ret -= t.tm_gmtoff;
|
||
|
||
if (remote)
|
||
memcpy(remote, &t, sizeof(struct tm));
|
||
|
||
return ret;
|
||
}
|
||
|
||
void sms_address_from_string(struct sms_address *addr, const char *str)
|
||
{
|
||
addr->numbering_plan = SMS_NUMBERING_PLAN_ISDN;
|
||
if (str[0] == '+') {
|
||
addr->number_type = SMS_NUMBER_TYPE_INTERNATIONAL;
|
||
strcpy(addr->address, str+1);
|
||
} else {
|
||
addr->number_type = SMS_NUMBER_TYPE_UNKNOWN;
|
||
strcpy(addr->address, str);
|
||
}
|
||
}
|
||
|
||
const char *sms_address_to_string(const struct sms_address *addr)
|
||
{
|
||
static char buffer[64];
|
||
|
||
if (addr->number_type == SMS_NUMBER_TYPE_INTERNATIONAL &&
|
||
(strlen(addr->address) > 0) &&
|
||
addr->address[0] != '+') {
|
||
buffer[0] = '+';
|
||
strcpy(buffer + 1, addr->address);
|
||
} else
|
||
strcpy(buffer, addr->address);
|
||
|
||
return buffer;
|
||
}
|
||
|
||
gboolean sms_extract_app_port(const struct sms *sms, int *dst, int *src,
|
||
gboolean *is_8bit)
|
||
{
|
||
struct sms_udh_iter iter;
|
||
enum sms_iei iei;
|
||
guint8 addr_hdr[4];
|
||
|
||
int srcport = -1;
|
||
int dstport = -1;
|
||
gboolean is_addr_8bit;
|
||
|
||
if (!sms_udh_iter_init(sms, &iter))
|
||
return FALSE;
|
||
|
||
/* According to the specification, we have to use the last
|
||
* useable header. Also, we have to ignore ports that are reserved:
|
||
* A receiving entity shall ignore (i.e. skip over and commence
|
||
* processing at the next information element) any information element
|
||
* where the value of the Information-Element-Data is Reserved or not
|
||
* supported.
|
||
*/
|
||
while ((iei = sms_udh_iter_get_ie_type(&iter)) !=
|
||
SMS_IEI_INVALID) {
|
||
switch (iei) {
|
||
case SMS_IEI_APPLICATION_ADDRESS_8BIT:
|
||
if (sms_udh_iter_get_ie_length(&iter) != 2)
|
||
break;
|
||
|
||
sms_udh_iter_get_ie_data(&iter, addr_hdr);
|
||
|
||
if (addr_hdr[0] < 240)
|
||
break;
|
||
|
||
if (addr_hdr[1] < 240)
|
||
break;
|
||
|
||
dstport = addr_hdr[0];
|
||
srcport = addr_hdr[1];
|
||
is_addr_8bit = TRUE;
|
||
break;
|
||
|
||
case SMS_IEI_APPLICATION_ADDRESS_16BIT:
|
||
if (sms_udh_iter_get_ie_length(&iter) != 4)
|
||
break;
|
||
|
||
sms_udh_iter_get_ie_data(&iter, addr_hdr);
|
||
|
||
if (((addr_hdr[0] << 8) | addr_hdr[1]) > 49151)
|
||
break;
|
||
|
||
if (((addr_hdr[2] << 8) | addr_hdr[3]) > 49151)
|
||
break;
|
||
|
||
dstport = (addr_hdr[0] << 8) | addr_hdr[1];
|
||
srcport = (addr_hdr[2] << 8) | addr_hdr[3];
|
||
is_addr_8bit = FALSE;
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
sms_udh_iter_next(&iter);
|
||
}
|
||
|
||
if (dstport == -1 || srcport == -1)
|
||
return FALSE;
|
||
|
||
if (dst)
|
||
*dst = dstport;
|
||
|
||
if (src)
|
||
*src = srcport;
|
||
|
||
if (is_8bit)
|
||
*is_8bit = is_addr_8bit;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
gboolean sms_extract_concatenation(const struct sms *sms, guint16 *ref_num,
|
||
guint8 *max_msgs, guint8 *seq_num)
|
||
{
|
||
struct sms_udh_iter iter;
|
||
enum sms_iei iei;
|
||
guint8 concat_hdr[4];
|
||
guint16 rn;
|
||
guint8 max, seq;
|
||
gboolean concatenated = FALSE;
|
||
|
||
/* We must ignore the entire user_data header here:
|
||
* If the length of the User Data Header is such that there
|
||
* are too few or too many octets in the final Information
|
||
* Element then the whole User Data Header shall be ignored.
|
||
*/
|
||
if (!sms_udh_iter_init(sms, &iter))
|
||
return FALSE;
|
||
|
||
/* According to the specification, we have to use the last
|
||
* useable header:
|
||
* In the event that IEs determined as not repeatable are
|
||
* duplicated, the last occurrence of the IE shall be used.
|
||
* In the event that two or more IEs occur which have mutually
|
||
* exclusive meanings (e.g. an 8bit port address and a 16bit
|
||
* port address), then the last occurring IE shall be used.
|
||
*/
|
||
while ((iei = sms_udh_iter_get_ie_type(&iter)) !=
|
||
SMS_IEI_INVALID) {
|
||
switch (iei) {
|
||
case SMS_IEI_CONCATENATED_8BIT:
|
||
if (sms_udh_iter_get_ie_length(&iter) != 3)
|
||
break;
|
||
|
||
sms_udh_iter_get_ie_data(&iter, concat_hdr);
|
||
|
||
if (concat_hdr[1] == 0)
|
||
break;
|
||
|
||
if (concat_hdr[2] == 0 || concat_hdr[2] > concat_hdr[1])
|
||
break;
|
||
|
||
rn = concat_hdr[0];
|
||
max = concat_hdr[1];
|
||
seq = concat_hdr[2];
|
||
concatenated = TRUE;
|
||
break;
|
||
|
||
case SMS_IEI_CONCATENATED_16BIT:
|
||
if (sms_udh_iter_get_ie_length(&iter) != 4)
|
||
break;
|
||
|
||
sms_udh_iter_get_ie_data(&iter, concat_hdr);
|
||
|
||
if (concat_hdr[2] == 0)
|
||
break;
|
||
|
||
if (concat_hdr[3] == 0 ||
|
||
concat_hdr[3] > concat_hdr[2])
|
||
break;
|
||
|
||
rn = (concat_hdr[0] << 8) | concat_hdr[1];
|
||
max = concat_hdr[2];
|
||
seq = concat_hdr[3];
|
||
concatenated = TRUE;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
sms_udh_iter_next(&iter);
|
||
}
|
||
|
||
if (!concatenated)
|
||
return FALSE;
|
||
|
||
if (ref_num)
|
||
*ref_num = rn;
|
||
|
||
if (max_msgs)
|
||
*max_msgs = max;
|
||
|
||
if (seq_num)
|
||
*seq_num = seq;
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/*!
|
||
* Decodes a list of SMSes that contain a datagram. The list must be
|
||
* sorted in order of the sequence number. This function assumes that
|
||
* all fragments are coded using 8-bit character set.
|
||
*
|
||
* Returns a pointer to a newly allocated array or NULL if the
|
||
* conversion could not be performed
|
||
*/
|
||
unsigned char *sms_decode_datagram(GSList *sms_list, long *out_len)
|
||
{
|
||
GSList *l;
|
||
const struct sms *sms;
|
||
unsigned char *buf;
|
||
long len = 0;
|
||
|
||
for (l = sms_list; l; l = l->next) {
|
||
guint8 taken = 0;
|
||
guint8 udl;
|
||
const guint8 *ud;
|
||
struct sms_udh_iter iter;
|
||
|
||
sms = l->data;
|
||
|
||
ud = sms_extract_common(sms, NULL, NULL, &udl, NULL);
|
||
|
||
if (!ud)
|
||
return NULL;
|
||
|
||
/* Note we do this because we must check whether the UDH
|
||
* is properly formatted. If not, the entire UDH is ignored
|
||
*/
|
||
if (sms_udh_iter_init(sms, &iter))
|
||
taken = sms_udh_iter_get_udh_length(&iter) + 1;
|
||
|
||
len += udl - taken;
|
||
}
|
||
|
||
/* Data is probably in headers we can't understand */
|
||
if (len == 0)
|
||
return NULL;
|
||
|
||
buf = g_try_new(unsigned char, len);
|
||
|
||
if (!buf)
|
||
return NULL;
|
||
|
||
len = 0;
|
||
for (l = sms_list; l; l = l->next) {
|
||
guint8 taken = 0;
|
||
guint8 udl;
|
||
const guint8 *ud;
|
||
struct sms_udh_iter iter;
|
||
|
||
sms = l->data;
|
||
|
||
ud = sms_extract_common(sms, NULL, NULL, &udl, NULL);
|
||
|
||
if (sms_udh_iter_init(sms, &iter))
|
||
taken = sms_udh_iter_get_udh_length(&iter) + 1;
|
||
|
||
memcpy(buf + len, ud + taken, udl - taken);
|
||
len += udl - taken;
|
||
}
|
||
|
||
if (out_len)
|
||
*out_len = len;
|
||
|
||
return buf;
|
||
}
|
||
|
||
static inline int sms_text_capacity_gsm(int max, int offset)
|
||
{
|
||
return max - (offset * 8 + 6) / 7;
|
||
}
|
||
|
||
/*!
|
||
* Decodes a list of SMSes that contain a text in either 7bit or UCS2 encoding.
|
||
* The list must be sorted in order of the sequence number. This function
|
||
* assumes that all fragments have a proper DCS.
|
||
*
|
||
* Returns a pointer to a newly allocated string or NULL if the conversion
|
||
* failed.
|
||
*/
|
||
char *sms_decode_text(GSList *sms_list)
|
||
{
|
||
GSList *l;
|
||
GString *str;
|
||
const struct sms *sms = sms_list->data;
|
||
int guess_size = g_slist_length(sms_list);
|
||
char *utf8;
|
||
|
||
if (guess_size == 1)
|
||
guess_size = 160;
|
||
else
|
||
guess_size = (guess_size - 1) * 160;
|
||
|
||
str = g_string_sized_new(guess_size);
|
||
|
||
for (l = sms_list; l; l = l->next) {
|
||
guint8 taken = 0;
|
||
guint8 dcs;
|
||
guint8 udl;
|
||
enum sms_charset charset;
|
||
int udl_in_bytes;
|
||
const guint8 *ud;
|
||
struct sms_udh_iter iter;
|
||
char *converted;
|
||
|
||
sms = l->data;
|
||
|
||
ud = sms_extract_common(sms, NULL, &dcs, &udl, NULL);
|
||
|
||
if (!sms_mwi_dcs_decode(dcs, NULL, &charset, NULL, NULL) &&
|
||
!sms_dcs_decode(dcs, NULL, &charset, NULL, NULL))
|
||
continue;
|
||
|
||
if (charset == SMS_CHARSET_8BIT)
|
||
continue;
|
||
|
||
if (sms_udh_iter_init(sms, &iter))
|
||
taken = sms_udh_iter_get_udh_length(&iter) + 1;
|
||
|
||
udl_in_bytes = sms_udl_in_bytes(udl, dcs);
|
||
|
||
if (charset == SMS_CHARSET_7BIT) {
|
||
unsigned char buf[160];
|
||
long written;
|
||
int max_chars = sms_text_capacity_gsm(udl, taken);
|
||
|
||
unpack_7bit_own_buf(ud + taken, udl_in_bytes - taken,
|
||
taken, FALSE, max_chars,
|
||
&written, 0, buf);
|
||
|
||
/* Take care of improperly split fragments */
|
||
if (buf[written-1] == 0x1b)
|
||
written = written - 1;
|
||
|
||
converted = convert_gsm_to_utf8(buf, written,
|
||
NULL, NULL, 0);
|
||
} else {
|
||
const gchar *from = (const gchar *)(ud + taken);
|
||
/* According to the spec: A UCS2 character shall not be
|
||
* split in the middle; if the length of the User Data
|
||
* Header is odd, the maximum length of the whole TP-UD
|
||
* field is 139 octets
|
||
*/
|
||
gssize num_ucs2_chars = (udl_in_bytes - taken) >> 1;
|
||
num_ucs2_chars = num_ucs2_chars << 1;
|
||
|
||
converted = g_convert(from, num_ucs2_chars,
|
||
"UTF-8//TRANSLIT", "UCS-2BE",
|
||
NULL, NULL, NULL);
|
||
}
|
||
|
||
if (converted) {
|
||
g_string_append(str, converted);
|
||
g_free(converted);
|
||
}
|
||
}
|
||
|
||
utf8 = g_string_free(str, FALSE);
|
||
|
||
if (strlen(utf8) == 0) {
|
||
g_free(utf8);
|
||
return NULL;
|
||
}
|
||
|
||
return utf8;
|
||
}
|
||
|
||
struct sms_assembly *sms_assembly_new()
|
||
{
|
||
return g_new0(struct sms_assembly, 1);
|
||
}
|
||
|
||
void sms_assembly_free(struct sms_assembly *assembly)
|
||
{
|
||
GSList *l;
|
||
|
||
for (l = assembly->assembly_list; l; l = l->next) {
|
||
struct sms_assembly_node *node = l->data;
|
||
|
||
g_slist_foreach(node->fragment_list, (GFunc)g_free, 0);
|
||
g_slist_free(node->fragment_list);
|
||
g_free(node);
|
||
}
|
||
|
||
g_slist_free(assembly->assembly_list);
|
||
g_free(assembly);
|
||
}
|
||
|
||
GSList *sms_assembly_add_fragment(struct sms_assembly *assembly,
|
||
const struct sms *sms, time_t ts,
|
||
const struct sms_address *addr,
|
||
guint16 ref, guint8 max, guint8 seq)
|
||
{
|
||
int offset = seq / 8;
|
||
int bit = 1 << (seq % 32);
|
||
GSList *l;
|
||
GSList *prev;
|
||
struct sms *newsms;
|
||
struct sms_assembly_node *node;
|
||
GSList *completed;
|
||
int position;
|
||
int i;
|
||
int j;
|
||
|
||
prev = NULL;
|
||
|
||
for (l = assembly->assembly_list; l; prev = l, l = l->next) {
|
||
node = l->data;
|
||
|
||
if (node->addr.number_type != addr->number_type)
|
||
continue;
|
||
|
||
if (node->addr.numbering_plan != addr->numbering_plan)
|
||
continue;
|
||
|
||
if (strcmp(node->addr.address, addr->address))
|
||
continue;
|
||
|
||
if (ref != node->ref)
|
||
continue;
|
||
|
||
/* Message Reference and address the same, but max is not
|
||
* ignore the SMS completely
|
||
*/
|
||
if (max != node->max_fragments)
|
||
return NULL;
|
||
|
||
/* Now check if we already have this seq number */
|
||
if (node->bitmap[offset] & bit)
|
||
return NULL;
|
||
|
||
position = 0;
|
||
for (i = 0; i < offset; i++)
|
||
for (j = 0; j < 32; j++)
|
||
if (node->bitmap[i] & (1 << j))
|
||
position += 1;
|
||
|
||
for (j = 1; j < bit; j = j << 1)
|
||
if (node->bitmap[offset] & j)
|
||
position += 1;
|
||
|
||
goto out;
|
||
}
|
||
|
||
node = g_new0(struct sms_assembly_node, 1);
|
||
memcpy(&node->addr, addr, sizeof(struct sms_address));
|
||
node->ts = ts;
|
||
node->ref = ref;
|
||
node->max_fragments = max;
|
||
|
||
assembly->assembly_list = g_slist_prepend(assembly->assembly_list,
|
||
node);
|
||
|
||
prev = NULL;
|
||
l = assembly->assembly_list;
|
||
position = 0;
|
||
|
||
out:
|
||
newsms = g_new(struct sms, 1);
|
||
|
||
memcpy(newsms, sms, sizeof(struct sms));
|
||
node->fragment_list = g_slist_insert(node->fragment_list,
|
||
newsms, position);
|
||
node->bitmap[offset] |= bit;
|
||
node->num_fragments += 1;
|
||
|
||
if (node->num_fragments < node->max_fragments)
|
||
return NULL;
|
||
|
||
completed = node->fragment_list;
|
||
|
||
if (prev)
|
||
prev->next = l->next;
|
||
else
|
||
assembly->assembly_list = l->next;
|
||
|
||
g_free(node);
|
||
g_slist_free_1(l);
|
||
return completed;
|
||
}
|
||
|
||
/*!
|
||
* Expires all incomplete messages that have been received at time prior
|
||
* to one given by before argument. The fragment list is freed and the
|
||
* SMSes are vaporized.
|
||
*/
|
||
void sms_assembly_expire(struct sms_assembly *assembly, time_t before)
|
||
{
|
||
GSList *cur;
|
||
GSList *prev;
|
||
GSList *tmp;
|
||
|
||
prev = NULL;
|
||
cur = assembly->assembly_list;
|
||
|
||
while (cur) {
|
||
struct sms_assembly_node *node = cur->data;
|
||
|
||
if (node->ts > before) {
|
||
prev = cur;
|
||
cur = cur->next;
|
||
continue;
|
||
}
|
||
|
||
g_slist_foreach(node->fragment_list, (GFunc)g_free, 0);
|
||
g_slist_free(node->fragment_list);
|
||
g_free(node);
|
||
|
||
if (prev)
|
||
prev->next = cur->next;
|
||
else
|
||
assembly->assembly_list = cur->next;
|
||
|
||
tmp = cur;
|
||
cur = cur->next;
|
||
g_slist_free_1(tmp);
|
||
}
|
||
}
|
||
|
||
static inline GSList *sms_list_append(GSList *l, const struct sms *in)
|
||
{
|
||
struct sms *sms;
|
||
|
||
sms = g_new(struct sms, 1);
|
||
memcpy(sms, in, sizeof(struct sms));
|
||
l = g_slist_prepend(l, sms);
|
||
|
||
return l;
|
||
}
|
||
|
||
/* Prepares the text for transmission. Breaks up into fragments if
|
||
* necessary using ref as the concatenated message reference number.
|
||
* Returns a list of sms messages in order. If ref_offset is given,
|
||
* then the ref_offset contains the reference number offset or 0
|
||
* if no concatenation took place.
|
||
*/
|
||
GSList *sms_text_prepare(const char *utf8, guint16 ref,
|
||
gboolean use_16bit, int *ref_offset)
|
||
{
|
||
struct sms template;
|
||
int offset = 0;
|
||
unsigned char *gsm_encoded = NULL;
|
||
char *ucs2_encoded = NULL;
|
||
long written;
|
||
long left;
|
||
guint8 seq;
|
||
guint8 max;
|
||
GSList *r = NULL;
|
||
|
||
memset(&template, 0, sizeof(struct sms));
|
||
template.type = SMS_TYPE_SUBMIT;
|
||
template.submit.rd = FALSE;
|
||
template.submit.vpf = SMS_VALIDITY_PERIOD_FORMAT_RELATIVE;
|
||
template.submit.rp = FALSE;
|
||
template.submit.srr = FALSE;
|
||
template.submit.mr = 0;
|
||
template.submit.vp.relative = 0xA7; /* 24 Hours */
|
||
|
||
/* UDHI, UDL, UD and DCS actually depend on what we have in the text */
|
||
gsm_encoded = convert_utf8_to_gsm(utf8, -1, NULL, &written, 0);
|
||
|
||
if (!gsm_encoded)
|
||
ucs2_encoded = g_convert(utf8, -1, "UCS-2BE//TRANSLIT", "UTF-8",
|
||
NULL, &written, NULL);
|
||
|
||
if (!gsm_encoded && !ucs2_encoded)
|
||
return NULL;
|
||
|
||
if (gsm_encoded)
|
||
template.submit.dcs = 0x00; /* Class Unspecified, 7 Bit */
|
||
else
|
||
template.submit.dcs = 0x08; /* Class Unspecified, UCS2 */
|
||
|
||
if (offset != 0)
|
||
template.submit.udhi = FALSE;
|
||
|
||
if (gsm_encoded && (written <= sms_text_capacity_gsm(160, offset))) {
|
||
if (ref_offset)
|
||
*ref_offset = 0;
|
||
|
||
template.submit.udl = written + (offset * 8 + 6) / 7;
|
||
pack_7bit_own_buf(gsm_encoded, written, offset, FALSE, NULL,
|
||
0, template.submit.ud + offset);
|
||
|
||
g_free(gsm_encoded);
|
||
return sms_list_append(NULL, &template);
|
||
}
|
||
|
||
if (ucs2_encoded && (written <= (140 - offset))) {
|
||
if (ref_offset)
|
||
*ref_offset = 0;
|
||
|
||
template.submit.udl = written + offset;
|
||
memcpy(template.submit.ud + offset, ucs2_encoded, written);
|
||
|
||
g_free(ucs2_encoded);
|
||
return sms_list_append(NULL, &template);
|
||
}
|
||
|
||
template.submit.udhi = TRUE;
|
||
|
||
if (!offset)
|
||
offset = 1;
|
||
|
||
if (ref_offset)
|
||
*ref_offset = offset + 2;
|
||
|
||
if (use_16bit) {
|
||
template.submit.ud[0] += 6;
|
||
template.submit.ud[offset] = SMS_IEI_CONCATENATED_16BIT;
|
||
template.submit.ud[offset + 1] = 4;
|
||
template.submit.ud[offset + 2] = (ref & 0xf0) >> 8;
|
||
template.submit.ud[offset + 3] = ref & 0xf;
|
||
|
||
offset += 6;
|
||
} else {
|
||
template.submit.ud[0] += 5;
|
||
template.submit.ud[offset] = SMS_IEI_CONCATENATED_8BIT;
|
||
template.submit.ud[offset + 1] = 3;
|
||
template.submit.ud[offset + 2] = ref & 0xf;
|
||
|
||
offset += 5;
|
||
}
|
||
|
||
seq = 0;
|
||
left = written;
|
||
written = 0;
|
||
|
||
while (left > 0) {
|
||
long chunk;
|
||
|
||
seq += 1;
|
||
|
||
if (gsm_encoded) {
|
||
chunk = sms_text_capacity_gsm(160, offset);
|
||
|
||
if (gsm_encoded[written + chunk - 1] == 0x1b)
|
||
chunk -= 1;
|
||
|
||
if (left < chunk)
|
||
chunk = left;
|
||
|
||
template.submit.udl = chunk + (offset * 8 + 6) / 7;
|
||
pack_7bit_own_buf(gsm_encoded + written, chunk,
|
||
offset, FALSE, NULL, 0,
|
||
template.submit.ud + offset);
|
||
} else {
|
||
chunk = 140 - offset;
|
||
chunk &= ~0x1;
|
||
|
||
if (left < chunk)
|
||
chunk = left;
|
||
|
||
template.submit.udl = chunk + offset;
|
||
memcpy(template.submit.ud + offset,
|
||
ucs2_encoded + written, chunk);
|
||
}
|
||
|
||
written += chunk;
|
||
left -= chunk;
|
||
|
||
template.submit.ud[offset - 1] = seq;
|
||
|
||
r = sms_list_append(r, &template);
|
||
|
||
if (seq == 255)
|
||
break;
|
||
}
|
||
|
||
if (gsm_encoded)
|
||
g_free(gsm_encoded);
|
||
|
||
if (ucs2_encoded)
|
||
g_free(ucs2_encoded);
|
||
|
||
if (left > 0) {
|
||
g_slist_foreach(r, (GFunc)g_free, NULL);
|
||
g_slist_free(r);
|
||
|
||
return NULL;
|
||
} else {
|
||
GSList *l;
|
||
|
||
for (l = r; l; l = l->next) {
|
||
struct sms *sms = l->data;
|
||
|
||
sms->submit.ud[offset - 2] = seq;
|
||
}
|
||
}
|
||
|
||
r = g_slist_reverse(r);
|
||
|
||
return r;
|
||
}
|