mirror of git://git.sysmocom.de/ofono
Add parser for imeisv objects
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@ -1511,6 +1511,49 @@ static gboolean parse_dataobj_item_text_attribute_list(
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return TRUE;
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}
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/*
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* Defined in TS 102.223 Section 8.74.
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*
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* According to 3GPP TS 24.008, Section 10.5.1.4, IMEISV is composed of
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* 16 digits and totally 9 bytes are used to represent it.
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*
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* Bits 1-3 of first byte represent the type of identity, and they
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* are 0 1 1 separately for IMEISV. Bit 4 of first byte is the odd/even
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* indication, and it's 0 to indicate IMEISV has odd number of digits (16).
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* The rest bytes are coded using BCD coding.
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*
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* For example, if the IMEISV is "1234567890123456", then it's coded as
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* "13 32 54 76 98 10 32 54 F6".
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*/
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static gboolean parse_dataobj_imeisv(struct comprehension_tlv_iter *iter,
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void *user)
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{
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char **imeisv = user;
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const unsigned char *data;
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unsigned int len;
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static const char digit_lut[] = "0123456789*#abc\0";
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len = comprehension_tlv_iter_get_length(iter);
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if (len != 9)
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return FALSE;
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data = comprehension_tlv_iter_get_data(iter);
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if ((data[0] & 0x0f) != 0x03)
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return FALSE;
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if (data[8] >> 4 != 0x0f)
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return FALSE;
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/* Assume imeisv is at least 17 bytes long (16 for imeisv + null) */
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(*imeisv)[0] = digit_lut[data[0] >> 4];
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extract_bcd_number(data + 1, 7, *imeisv + 1);
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(*imeisv)[15] = digit_lut[data[8] & 0x0f];
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(*imeisv)[16] = '\0';
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return TRUE;
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}
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/* Defined in TS 102.223 Section 8.80 */
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static gboolean parse_dataobj_frame_id(struct comprehension_tlv_iter *iter,
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void *user)
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@ -1666,6 +1709,8 @@ static dataobj_handler handler_for_type(enum stk_data_object_type type)
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return parse_dataobj_text_attr;
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case STK_DATA_OBJECT_TYPE_ITEM_TEXT_ATTRIBUTE_LIST:
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return parse_dataobj_item_text_attribute_list;
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case STK_DATA_OBJECT_TYPE_IMEISV:
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return parse_dataobj_imeisv;
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case STK_DATA_OBJECT_TYPE_FRAME_ID:
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return parse_dataobj_frame_id;
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default:
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