again, include source files from OpenSC
(unused) dependencies are satisfied with dummy implementations
This commit is contained in:
Frank Morgner
291
npa/src/scutil.c
291
npa/src/scutil.c
@@ -22,282 +22,25 @@
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#include "libopensc/internal.h"
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#ifndef HAVE_SC_APDU_GET_OCTETS
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/* copied from opensc/src/libopensc/apdu.c */
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/** Calculates the length of the encoded APDU in octets.
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* @param apdu the APDU
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* @param proto the desired protocol
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* @return length of the encoded APDU
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*/
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static size_t sc_apdu_get_length(const sc_apdu_t *apdu, unsigned int proto)
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{
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size_t ret = 4;
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switch (apdu->cse) {
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case SC_APDU_CASE_1:
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if (proto == SC_PROTO_T0)
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ret++;
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break;
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case SC_APDU_CASE_2_SHORT:
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ret++;
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break;
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case SC_APDU_CASE_2_EXT:
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ret += (proto == SC_PROTO_T0 ? 1 : 3);
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break;
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case SC_APDU_CASE_3_SHORT:
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ret += 1 + apdu->lc;
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break;
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case SC_APDU_CASE_3_EXT:
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ret += apdu->lc + (proto == SC_PROTO_T0 ? 1 : 3);
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break;
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case SC_APDU_CASE_4_SHORT:
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ret += apdu->lc + (proto != SC_PROTO_T0 ? 2 : 1);
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break;
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case SC_APDU_CASE_4_EXT:
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ret += apdu->lc + (proto == SC_PROTO_T0 ? 1 : 5);
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break;
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default:
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return 0;
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}
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return ret;
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}
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/** Encodes a APDU as an octet string
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* @param ctx sc_context_t object (used for logging)
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* @param apdu APDU to be encoded as an octet string
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* @param proto protocol version to be used
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* @param out output buffer of size outlen.
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* @param outlen size of hte output buffer
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* @return SC_SUCCESS on success and an error code otherwise
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*/
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static int sc_apdu2bytes(sc_context_t *ctx, const sc_apdu_t *apdu,
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unsigned int proto, u8 *out, size_t outlen)
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{
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u8 *p = out;
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size_t len = sc_apdu_get_length(apdu, proto);
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if (out == NULL || outlen < len)
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return SC_ERROR_INVALID_ARGUMENTS;
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/* CLA, INS, P1 and P2 */
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*p++ = apdu->cla;
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*p++ = apdu->ins;
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*p++ = apdu->p1;
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*p++ = apdu->p2;
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/* case depend part */
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switch (apdu->cse) {
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case SC_APDU_CASE_1:
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/* T0 needs an additional 0x00 byte */
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if (proto == SC_PROTO_T0)
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*p = (u8)0x00;
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break;
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case SC_APDU_CASE_2_SHORT:
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*p = (u8)apdu->le;
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break;
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case SC_APDU_CASE_2_EXT:
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if (proto == SC_PROTO_T0)
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/* T0 extended APDUs look just like short APDUs */
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*p = (u8)apdu->le;
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else {
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/* in case of T1 always use 3 bytes for length */
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*p++ = (u8)0x00;
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*p++ = (u8)(apdu->le >> 8);
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*p = (u8)apdu->le;
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}
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break;
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case SC_APDU_CASE_3_SHORT:
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*p++ = (u8)apdu->lc;
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memcpy(p, apdu->data, apdu->lc);
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break;
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case SC_APDU_CASE_3_EXT:
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if (proto == SC_PROTO_T0) {
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/* in case of T0 the command is transmitted in chunks
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* < 255 using the ENVELOPE command ... */
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if (apdu->lc > 255) {
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/* ... so if Lc is greater than 255 bytes
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* an error has occurred on a higher level */
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sc_log(ctx, "invalid Lc length for CASE 3 extended APDU (need ENVELOPE)");
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return SC_ERROR_INVALID_ARGUMENTS;
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}
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}
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else {
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/* in case of T1 always use 3 bytes for length */
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*p++ = (u8)0x00;
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*p++ = (u8)(apdu->lc >> 8);
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*p++ = (u8)apdu->lc;
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}
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memcpy(p, apdu->data, apdu->lc);
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break;
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case SC_APDU_CASE_4_SHORT:
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*p++ = (u8)apdu->lc;
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memcpy(p, apdu->data, apdu->lc);
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p += apdu->lc;
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/* in case of T0 no Le byte is added */
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if (proto != SC_PROTO_T0)
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*p = (u8)apdu->le;
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break;
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case SC_APDU_CASE_4_EXT:
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if (proto == SC_PROTO_T0) {
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/* again a T0 extended case 4 APDU looks just
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* like a short APDU, the additional data is
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* transferred using ENVELOPE and GET RESPONSE */
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*p++ = (u8)apdu->lc;
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memcpy(p, apdu->data, apdu->lc);
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}
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else {
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*p++ = (u8)0x00;
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*p++ = (u8)(apdu->lc >> 8);
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*p++ = (u8)apdu->lc;
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memcpy(p, apdu->data, apdu->lc);
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p += apdu->lc;
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/* only 2 bytes are use to specify the length of the
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* expected data */
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*p++ = (u8)(apdu->le >> 8);
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*p = (u8)apdu->le;
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}
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break;
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}
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return SC_SUCCESS;
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}
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int sc_apdu_get_octets(sc_context_t *ctx, const sc_apdu_t *apdu, u8 **buf,
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size_t *len, unsigned int proto)
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{
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size_t nlen;
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u8 *nbuf;
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if (apdu == NULL || buf == NULL || len == NULL)
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return SC_ERROR_INVALID_ARGUMENTS;
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/* get the estimated length of encoded APDU */
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nlen = sc_apdu_get_length(apdu, proto);
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if (nlen == 0)
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return SC_ERROR_INTERNAL;
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nbuf = malloc(nlen);
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if (nbuf == NULL)
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return SC_ERROR_OUT_OF_MEMORY;
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/* encode the APDU in the buffer */
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if (sc_apdu2bytes(ctx, apdu, proto, nbuf, nlen) != SC_SUCCESS) {
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free(nbuf);
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return SC_ERROR_INTERNAL;
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}
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*buf = nbuf;
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*len = nlen;
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return SC_SUCCESS;
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}
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#endif
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#ifndef HAVE_SC_APDU_SET_RESP
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/* copied from opensc/src/libopensc/card.c */
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#include <string.h>
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int sc_apdu_set_resp(sc_context_t *ctx, sc_apdu_t *apdu, const u8 *buf,
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size_t len)
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{
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if (len < 2) {
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/* no SW1 SW2 ... something went terrible wrong */
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sc_log(ctx, "invalid response: SW1 SW2 missing");
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return SC_ERROR_INTERNAL;
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}
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/* set the SW1 and SW2 status bytes (the last two bytes of
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* the response */
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apdu->sw1 = (unsigned int)buf[len - 2];
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apdu->sw2 = (unsigned int)buf[len - 1];
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len -= 2;
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/* set output length and copy the returned data if necessary */
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if (len <= apdu->resplen)
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apdu->resplen = len;
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if (apdu->resplen != 0)
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memcpy(apdu->resp, buf, apdu->resplen);
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return SC_SUCCESS;
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}
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#endif
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#ifndef HAVE__SC_MATCH_ATR
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/* copied from opensc/src/libopensc/card.c */
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int sc_dlclose(void *handle) {}
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const char *sc_dlerror() {}
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void *sc_dlsym(void *handle, const char *symbol) {}
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size_t strlcpy(char *dst, const char *src, size_t siz) {}
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int sc_mutex_create(const sc_context_t *ctx, void **mutex) {}
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int sc_mutex_destroy(const sc_context_t *ctx, void *mutex) {}
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int _sc_parse_atr(sc_reader_t *reader) {}
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void *sc_dlopen(const char *filename) {}
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int sc_mutex_lock(const sc_context_t *ctx, void *mutex) {}
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int sc_mutex_unlock(const sc_context_t *ctx, void *mutex) {}
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#include "libopensc/card.c"
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#endif
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static int match_atr_table(sc_context_t *ctx, struct sc_atr_table *table, struct sc_atr *atr)
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{
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u8 *card_atr_bin;
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size_t card_atr_bin_len;
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char card_atr_hex[3 * SC_MAX_ATR_SIZE];
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size_t card_atr_hex_len;
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unsigned int i = 0;
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if (ctx == NULL || table == NULL || atr == NULL)
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return -1;
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card_atr_bin = atr->value;
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card_atr_bin_len = atr->len;
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sc_bin_to_hex(card_atr_bin, card_atr_bin_len, card_atr_hex, sizeof(card_atr_hex), ':');
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card_atr_hex_len = strlen(card_atr_hex);
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sc_log(ctx, "ATR : %s", card_atr_hex);
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for (i = 0; table[i].atr != NULL; i++) {
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const char *tatr = table[i].atr;
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const char *matr = table[i].atrmask;
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size_t tatr_len = strlen(tatr);
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u8 mbin[SC_MAX_ATR_SIZE], tbin[SC_MAX_ATR_SIZE];
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size_t mbin_len, tbin_len, s, matr_len;
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size_t fix_hex_len = card_atr_hex_len;
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size_t fix_bin_len = card_atr_bin_len;
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sc_log(ctx, "ATR try : %s", tatr);
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if (tatr_len != fix_hex_len) {
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sc_log(ctx, "ignored - wrong length");
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continue;
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}
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if (matr != NULL) {
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sc_log(ctx, "ATR mask: %s", matr);
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matr_len = strlen(matr);
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if (tatr_len != matr_len)
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continue;
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tbin_len = sizeof(tbin);
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sc_hex_to_bin(tatr, tbin, &tbin_len);
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mbin_len = sizeof(mbin);
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sc_hex_to_bin(matr, mbin, &mbin_len);
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if (mbin_len != fix_bin_len) {
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sc_log(ctx, "length of atr and atr mask do not match - ignored: %s - %s", tatr, matr);
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continue;
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}
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for (s = 0; s < tbin_len; s++) {
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/* reduce tatr with mask */
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tbin[s] = (tbin[s] & mbin[s]);
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/* create copy of card_atr_bin masked) */
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mbin[s] = (card_atr_bin[s] & mbin[s]);
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}
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if (memcmp(tbin, mbin, tbin_len) != 0)
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continue;
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} else {
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if (strncasecmp(tatr, card_atr_hex, tatr_len) != 0)
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continue;
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}
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return i;
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}
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return -1;
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}
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int _sc_match_atr(sc_card_t *card, struct sc_atr_table *table, int *type_out)
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{
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int res;
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if (card == NULL)
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return -1;
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res = match_atr_table(card->ctx, table, &card->atr);
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if (res < 0)
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return res;
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if (type_out != NULL)
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*type_out = table[res].type;
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return res;
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}
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#if !defined(HAVE_SC_APDU_GET_OCTETS) || !defined(HAVE_SC_APDU_SET_RESP)
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#ifdef HAVE__SC_MATCH_ATR
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size_t sc_get_max_send_size(const sc_card_t *card) {}
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#endif
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#include "libopensc/apdu.c"
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#endif
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#include <libopensc/log.h>
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