int KSI_TlvTemplate_serializeObject(KSI_CTX *ctx, const void *obj, unsigned tag, int isNc, int isFwd, const KSI_TlvTemplate *tmpl, unsigned char **raw, unsigned *raw_len) {
int res = KSI_UNKNOWN_ERROR;
KSI_TLV *tlv = NULL;
unsigned char *tmp = NULL;
unsigned tmp_len = 0;
KSI_ERR_clearErrors(ctx);
if (ctx == NULL || obj == NULL || tmpl == NULL || raw == NULL || raw_len == NULL) {
KSI_pushError(ctx, res = KSI_INVALID_ARGUMENT, NULL);
goto cleanup;
}
/* Create TLV for the PDU object. */
res = KSI_TLV_new(ctx, KSI_TLV_PAYLOAD_TLV, tag, isFwd, isNc, &tlv);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
/* Evaluate the TLV. */
res = KSI_TlvTemplate_construct(ctx, tlv, obj, tmpl);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
KSI_LOG_logTlv(ctx, KSI_LOG_DEBUG, "Serializing object", tlv);
/* Serialize the TLV. */
res = KSI_TLV_serialize(tlv, &tmp, &tmp_len);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
*raw = tmp;
tmp = NULL;
*raw_len = tmp_len;
res = KSI_OK;
cleanup:
KSI_free(tmp);
KSI_TLV_free(tlv);
return res;
}
int KSI_TlvTemplate_deepCopy(KSI_CTX *ctx, const void *from, const KSI_TlvTemplate *baseTemplate, void *to) {
int res = KSI_UNKNOWN_ERROR;
KSI_TLV *tmpTlv = NULL;
KSI_ERR_clearErrors(ctx);
if (ctx == NULL || from == NULL || baseTemplate == NULL || to == NULL) {
KSI_pushError(ctx, res = KSI_INVALID_ARGUMENT, NULL);
goto cleanup;
}
/* Create a dummy TLV */
res = KSI_TLV_new(ctx, KSI_TLV_PAYLOAD_TLV, 0x0, 0, 0, &tmpTlv);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
/* Create a TLV object */
res = KSI_TlvTemplate_construct(ctx, tmpTlv, from, baseTemplate);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
/* Evaluate the cloned object */
res = KSI_TlvTemplate_extract(ctx, to, tmpTlv, baseTemplate);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
res = KSI_OK;
cleanup:
KSI_TLV_free(tmpTlv);
return res;
}
int KSI_PublicationsFile_serialize(KSI_CTX *ctx, KSI_PublicationsFile *pubFile, char **raw, size_t *raw_len) {
int res;
const unsigned char *buf = NULL;
size_t buf_len = 0;
KSI_TLV *tlv = NULL;
unsigned char *tmp = NULL;
size_t tmp_len = 0;
size_t sig_len = 0;
KSI_ERR_clearErrors(ctx);
if (ctx == NULL || pubFile == 0 || raw == NULL || raw_len == NULL) {
KSI_pushError(ctx, res = KSI_INVALID_ARGUMENT, NULL);
goto cleanup;
}
/**
* Create TLV 0x700 that contains nested list of publication file TLVs.
* Calculate signed data length assuming that signature TLV is always the last.
*/
res = KSI_TLV_new(ctx, 0x700, 0, 0, &tlv);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
res = KSI_TlvTemplate_construct(ctx, tlv, pubFile, KSI_TLV_TEMPLATE(KSI_PublicationsFile));
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
res = publicationsFileTLV_getSignatureTLVLength(tlv, &sig_len);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
res = KSI_TLV_getRawValue(tlv, &buf, &buf_len);
if (res != KSI_OK) {
KSI_pushError(ctx, res, NULL);
goto cleanup;
}
/**
* Append raw value to publication file header. Copy raw publication file into
* internal and external buffer.
*/
tmp_len = buf_len + sizeof(PUB_FILE_HEADER_ID) - 1;
tmp = (unsigned char *) KSI_malloc(tmp_len);
if (tmp == NULL) {
KSI_pushError(ctx, res = KSI_OUT_OF_MEMORY, NULL);
goto cleanup;
}
if (KSI_strncpy((char *)tmp, PUB_FILE_HEADER_ID, tmp_len) == NULL) {
KSI_pushError(ctx, res = KSI_UNKNOWN_ERROR, NULL);
goto cleanup;
}
memcpy(tmp + sizeof(PUB_FILE_HEADER_ID) - 1, buf, buf_len);
if (pubFile->raw != NULL) KSI_free(pubFile->raw);
pubFile->raw = tmp;
pubFile->raw_len = tmp_len;
pubFile->signedDataLength = tmp_len - sig_len;
tmp = NULL;
tmp = (unsigned char *) KSI_malloc(pubFile->raw_len);
if (tmp == NULL) {
KSI_pushError(ctx, res = KSI_OUT_OF_MEMORY, NULL);
goto cleanup;
}
memcpy(tmp, pubFile->raw, pubFile->raw_len);
*raw = (char *)tmp;
*raw_len = pubFile->raw_len;
tmp = NULL;
res = KSI_OK;
cleanup:
KSI_TLV_free(tlv);
KSI_free(tmp);
return res;
}
KSI_END_TLV_TEMPLATE
static int replaceCalendarChain(KSI_Signature *sig, KSI_CalendarHashChain *calendarHashChain) {
int res;
KSI_DataHash *aggrOutputHash = NULL;
KSI_TLV *oldCalChainTlv = NULL;
KSI_TLV *newCalChainTlv = NULL;
KSI_LIST(KSI_TLV) *nestedList = NULL;
size_t i;
if (sig == NULL || calendarHashChain == NULL) {
res = KSI_INVALID_ARGUMENT;
goto cleanup;
}
KSI_ERR_clearErrors(sig->ctx);
res = KSI_TLV_getNestedList(sig->baseTlv, &nestedList);
if (res != KSI_OK) {
KSI_pushError(sig->ctx, res, NULL);
goto cleanup;
}
if (sig->calendarChain != NULL) {
for (i = 0; i < KSI_TLVList_length(nestedList); i++) {
res = KSI_TLVList_elementAt(nestedList,i, &oldCalChainTlv);
if (res != KSI_OK) {
KSI_pushError(sig->ctx, res, NULL);
goto cleanup;
}
if (oldCalChainTlv == NULL) {
KSI_pushError(sig->ctx, res = KSI_INVALID_SIGNATURE, "Signature TLV element missing.");
goto cleanup;
}
if (KSI_TLV_getTag(oldCalChainTlv) == 0x0802) break;
}
}
res = KSI_TLV_new(sig->ctx, 0x0802, 0, 0, &newCalChainTlv);
if (res != KSI_OK) {
KSI_pushError(sig->ctx, res, NULL);
goto cleanup;
}
res = KSI_TlvTemplate_construct(sig->ctx, newCalChainTlv, calendarHashChain, KSI_TLV_TEMPLATE(KSI_CalendarHashChain));
if (res != KSI_OK) {
KSI_pushError(sig->ctx, res, NULL);
goto cleanup;
}
res = (sig->calendarChain == NULL) ?
/* In case there is no calendar hash chain attached, append a new one. */
KSI_TLV_appendNestedTlv(sig->baseTlv, newCalChainTlv) :
/* Otherwise replace the calendar hash chain. */
KSI_TLV_replaceNestedTlv(sig->baseTlv, oldCalChainTlv, newCalChainTlv);
if (res != KSI_OK) {
KSI_pushError(sig->ctx, res, NULL);
goto cleanup;
}
newCalChainTlv = NULL;
/* The memory was freed within KSI_TLV_replaceNestedTlv. */
oldCalChainTlv = NULL;
KSI_CalendarHashChain_free(sig->calendarChain);
sig->calendarChain = calendarHashChain;
res = KSI_OK;
cleanup:
KSI_nofree(nestedList);
KSI_DataHash_free(aggrOutputHash);
KSI_TLV_free(newCalChainTlv);
return res;
}
