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ofono
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Add parser for c-apdu objects

This commit is contained in:
Yang Gu 2010-04-02 14:20:28 +08:00 committed by Denis Kenzior
parent 8e91f477f9
commit afc2cb84e3
2 changed files with 59 additions and 0 deletions
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44
src/stkutil.c
View File

@ -789,6 +789,48 @@ static gboolean parse_dataobj_card_atr(
return TRUE;
}
/* Defined in TS 102.223 Section 8.35 */
static gboolean parse_dataobj_c_apdu(
struct comprehension_tlv_iter *iter, void *user)
{
struct stk_c_apdu *ca = user;
const unsigned char *data;
unsigned int len = comprehension_tlv_iter_get_length(iter);
if ((len < 4) || (len > 241))
return FALSE;
data = comprehension_tlv_iter_get_data(iter);
ca->cla = data[0];
ca->ins = data[1];
ca->p1 = data[2];
ca->p2 = data[3];
/* lc is 0 has the same meaning as lc is absent. But le is 0 means
* the maximum number of bytes expected in the response data field
* is 256. So we need to rely on has_le to know if it presents.
*/
if (len > 5) {
ca->lc = data[4];
if (ca->lc > sizeof(ca->data))
return FALSE;
memcpy(ca->data, data+5, ca->lc);
if ((len - ca->lc) == 6) {
ca->le = data[len-1];
ca->has_le = TRUE;
} else if (len - ca->lc != 5)
return FALSE;
} else if (len == 5) {
ca->lc = 0;
ca->le = data[4];
ca->has_le = TRUE;
}
return TRUE;
}
/* Defined in 102.223 Section 8.43 */
static gboolean parse_dataobj_imm_resp(struct comprehension_tlv_iter *iter,
void *user)
@ -897,6 +939,8 @@ static dataobj_handler handler_for_type(enum stk_data_object_type type)
return parse_dataobj_card_reader_status;
case STK_DATA_OBJECT_TYPE_CARD_ATR:
return parse_dataobj_card_atr;
case STK_DATA_OBJECT_TYPE_C_APDU:
return parse_dataobj_c_apdu;
case STK_DATA_OBJECT_TYPE_IMMEDIATE_RESPONSE:
return parse_dataobj_imm_resp;
case STK_DATA_OBJECT_TYPE_TEXT_ATTRIBUTE:

15
src/stkutil.h
View File

@ -468,6 +468,21 @@ struct stk_card_atr {
unsigned int len;
};
/*
* Defined in TS 102.223 Section 8.35. According to it, the maximum size
* of data is 236.
*/
struct stk_c_apdu {
unsigned char cla;
unsigned char ins;
unsigned char p1;
unsigned char p2;
unsigned char lc;
unsigned char data[236];
ofono_bool_t has_le;
unsigned char le;
};
/*
* According to 102.223 Section 8.72 the length of text attribute CTLV is 1
* byte. This means that the maximum size is 127 according to the rules