mirror of git://git.sysmocom.de/ofono
Add User-Data-Header iterator utilities
This commit is contained in:
Denis Kenzior
parent
356853983e
commit
5e95802699
158
src/smsutil.c
158
src/smsutil.c
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@ -1325,3 +1325,161 @@ gboolean decode_sms(const unsigned char *pdu, int len, gboolean outgoing,
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return FALSE;
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}
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gboolean sms_udh_iter_init(struct sms *sms, struct sms_udh_iter *iter)
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{
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gboolean udhi = FALSE;
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guint8 *hdr;
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guint8 udl;
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guint8 dcs;
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guint8 max_len;
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guint8 offset;
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guint8 max_offset;
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switch (sms->type) {
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case SMS_TYPE_DELIVER:
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udhi = sms->deliver.udhi;
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hdr = sms->deliver.ud;
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udl = sms->deliver.udl;
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dcs = sms->deliver.dcs;
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break;
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case SMS_TYPE_DELIVER_REPORT_ACK:
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udhi = sms->deliver_ack_report.udhi;
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hdr = sms->deliver_ack_report.ud;
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udl = sms->deliver_ack_report.udl;
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dcs = sms->deliver_ack_report.dcs;
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break;
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case SMS_TYPE_DELIVER_REPORT_ERROR:
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udhi = sms->deliver_err_report.udhi;
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hdr = sms->deliver_err_report.ud;
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udl = sms->deliver_err_report.udl;
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dcs = sms->deliver_err_report.dcs;
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break;
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case SMS_TYPE_STATUS_REPORT:
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udhi = sms->status_report.udhi;
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hdr = sms->status_report.ud;
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udl = sms->status_report.udl;
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dcs = sms->status_report.dcs;
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break;
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case SMS_TYPE_SUBMIT:
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udhi = sms->submit.udhi;
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hdr = sms->submit.ud;
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udl = sms->submit.udl;
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dcs = sms->submit.dcs;
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break;
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case SMS_TYPE_SUBMIT_REPORT_ACK:
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udhi = sms->submit_ack_report.udhi;
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hdr = sms->submit_ack_report.ud;
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udl = sms->submit_ack_report.udl;
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dcs = sms->submit_ack_report.dcs;
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break;
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case SMS_TYPE_SUBMIT_REPORT_ERROR:
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udhi = sms->submit_err_report.udhi;
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hdr = sms->submit_err_report.ud;
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udl = sms->submit_err_report.udl;
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dcs = sms->submit_err_report.dcs;
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break;
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case SMS_TYPE_COMMAND:
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udhi = sms->command.udhi;
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hdr = sms->command.cd;
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udl = sms->command.cdl;
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dcs = 0;
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break;
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};
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if (!udhi)
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return FALSE;
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if (sms->type == SMS_TYPE_COMMAND)
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max_len = udl;
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else
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max_len = ud_len_in_octets(udl, dcs);
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/* Can't actually store the HDL + IEI / IEL */
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if (max_len < 3)
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return FALSE;
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/* Must have at least one information-element if udhi is true */
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if (hdr[0] < 2)
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return FALSE;
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if (hdr[0] >= max_len)
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return FALSE;
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/* According to 23.040: If the length of the User Data Header is
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* such that there are too few or too many octets in the final
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* Information Element then the whole User Data Header shall be
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* ignored.
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*/
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max_offset = hdr[0] + 1;
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offset = 1;
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do {
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if ((offset + 2) > max_offset)
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return FALSE;
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if ((offset + 2 + hdr[offset + 1]) > max_offset)
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return FALSE;
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offset = offset + 2 + hdr[offset + 1];
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} while (offset < max_offset);
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if (offset != max_offset)
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return FALSE;
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iter->sms = sms;
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iter->data = hdr;
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iter->offset = 1;
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return TRUE;
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}
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enum sms_iei sms_udh_iter_get_ie_type(struct sms_udh_iter *iter)
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{
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if (iter->offset > iter->data[0])
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return SMS_IEI_INVALID;
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return (enum sms_iei) iter->data[iter->offset];
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}
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guint8 sms_udh_iter_get_ie_length(struct sms_udh_iter *iter)
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{
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guint8 ie_len;
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ie_len = iter->data[iter->offset + 1];
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return ie_len;
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}
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void sms_udh_iter_get_ie_data(struct sms_udh_iter *iter, guint8 *data)
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{
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guint8 ie_len;
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ie_len = iter->data[iter->offset + 1];
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memcpy(data, &iter->data[iter->offset + 2], ie_len);
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}
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gboolean sms_udh_iter_has_next(struct sms_udh_iter *iter)
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{
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guint8 total_len = iter->data[0];
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guint8 cur_ie_len = iter->data[iter->offset + 1];
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if ((iter->offset + 2 + cur_ie_len) > total_len)
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return FALSE;
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return TRUE;
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}
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gboolean sms_udh_iter_next(struct sms_udh_iter *iter)
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{
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if (iter->offset > iter->data[0])
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return FALSE;
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iter->offset = iter->offset + 2 + iter->data[iter->offset + 1];
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if (iter->offset > iter->data[0])
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return FALSE;
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return TRUE;
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}
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@ -105,6 +105,41 @@ enum sms_ct {
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SMS_CT_ENABLE_SRR = 3
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};
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enum sms_iei {
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SMS_IEI_CONCATENATED_8BIT = 0x00,
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SMS_IEI_SPECIAL_MESSAGE_INDICATION = 0x01,
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SMS_IEI_APPLICATION_ADDRESSS_8BIT = 0x04,
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SMS_IEI_APPLICATION_ADDRESS_16BIT = 0x05,
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SMS_IEI_SMSC_CONTROL_PARAMETERS = 0x06,
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SMS_IEI_UDH_SOURCE_INDICATOR = 0x07,
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SMS_IEI_CONCATENATED_16BIT = 0x08,
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SMS_IEI_WCMP = 0x09,
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SMS_IEI_TEXT_FORMAT = 0x0A,
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SMS_IEI_PREDEFINED_SOUND = 0x0B,
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SMS_IEI_USER_DEFINED_SOUND = 0x0C,
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SMS_IEI_PREDEFINED_ANIMATION = 0x0D,
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SMS_IEI_LARGE_ANIMATION = 0x0E,
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SMS_IEI_SMALL_ANIMATION = 0x0F,
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SMS_IEI_LARGE_PICTURE = 0x10,
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SMS_IEI_SMALL_PICTURE = 0x11,
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SMS_IEI_VARIABLE_PICTURE = 0x12,
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SMS_IEI_USER_PROMPT_INDICATOR = 0x13,
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SMS_IEI_EXTENDED_OBJECT = 0x14,
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SMS_IEI_REUSED_EXTENDED_OBJECT = 0x15,
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SMS_IEI_COMPRESSION_CONTROL = 0x16,
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SMS_IEI_OBJECT_DISTRIBUTION_INDICATOR = 0x17,
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SMS_IEI_STANDARD_WVG_OBJECT = 0x18,
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SMS_IEI_CHARACTER_SIZE_WVG_OBJECT = 0x19,
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SMS_IEI_EXTENDED_OBJECT_DATA_REQUEST_COMMAND = 0x1A,
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SMS_IEI_RFC822_EMAIL_HEADER = 0x20,
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SMS_IEI_HYPERLINK_ELEMENT = 0x21,
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SMS_IEI_REPLY_ADDRESS_ELEMENT = 0x22,
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SMS_IEI_ENHANCED_VOICE_MAIL_INFORMATION = 0x23,
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SMS_IEI_NATIONAL_LANGUAGE_SINGLE_SHIFT = 0x24,
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SMS_IEI_NATIONAL_LANGUAGE_LOCKING_SHIFT = 0x25,
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SMS_IEI_INVALID = 0xFFF
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};
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struct sms_address {
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enum sms_number_type number_type;
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enum sms_numbering_plan numbering_plan;
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@ -240,6 +275,12 @@ struct sms {
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};
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};
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struct sms_udh_iter {
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struct sms *sms;
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guint8 *data;
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guint8 offset;
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};
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gboolean decode_sms(const unsigned char *pdu, int len, gboolean outgoing,
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int tpdu_len, struct sms *out);
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@ -248,4 +289,10 @@ gboolean encode_sms(const struct sms *in, int *len, int *tpdu_len,
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int ud_len_in_octets(guint8 ud_len, guint8 dcs);
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gboolean sms_udh_iter_init(struct sms *sms, struct sms_udh_iter *iter);
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enum sms_iei sms_udh_iter_get_ie_type(struct sms_udh_iter *iter);
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guint8 sms_udh_iter_get_ie_length(struct sms_udh_iter *iter);
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void sms_udh_iter_get_ie_data(struct sms_udh_iter *iter, guint8 *data);
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gboolean sms_udh_iter_has_next(struct sms_udh_iter *iter);
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gboolean sms_udh_iter_next(struct sms_udh_iter *iter);
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#endif
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