diff options
Diffstat (limited to 'src/pq/pq_query_helper.c')
-rw-r--r-- | src/pq/pq_query_helper.c | 94 |
1 files changed, 92 insertions, 2 deletions
diff --git a/src/pq/pq_query_helper.c b/src/pq/pq_query_helper.c index 3f51ddbe8..618877608 100644 --- a/src/pq/pq_query_helper.c +++ b/src/pq/pq_query_helper.c @@ -265,7 +265,7 @@ qconv_denom_sig (void *cls, const struct TALER_DenominationSignature *denom_sig = data; size_t tlen; size_t len; - uint32_t be; + uint32_t be[2]; char *buf; void *tbuf; @@ -273,7 +273,8 @@ qconv_denom_sig (void *cls, GNUNET_assert (1 == param_length); GNUNET_assert (scratch_length > 0); GNUNET_break (NULL == cls); - be = htonl ((uint32_t) denom_sig->cipher); + be[0] = htonl ((uint32_t) denom_sig->cipher); + be[1] = htonl (0x00); /* magic marker: unblinded */ switch (denom_sig->cipher) { case TALER_DENOMINATION_RSA: @@ -329,6 +330,95 @@ TALER_PQ_query_param_denom_sig ( * Function called to convert input argument into SQL parameters. * * @param cls closure + * @param data pointer to input argument + * @param data_len number of bytes in @a data (if applicable) + * @param[out] param_values SQL data to set + * @param[out] param_lengths SQL length data to set + * @param[out] param_formats SQL format data to set + * @param param_length number of entries available in the @a param_values, @a param_lengths and @a param_formats arrays + * @param[out] scratch buffer for dynamic allocations (to be done via #GNUNET_malloc() + * @param scratch_length number of entries left in @a scratch + * @return -1 on error, number of offsets used in @a scratch otherwise + */ +static int +qconv_blinded_denom_sig (void *cls, + const void *data, + size_t data_len, + void *param_values[], + int param_lengths[], + int param_formats[], + unsigned int param_length, + void *scratch[], + unsigned int scratch_length) +{ + const struct TALER_BlindedDenominationSignature *denom_sig = data; + size_t tlen; + size_t len; + uint32_t be[2]; + char *buf; + void *tbuf; + + (void) cls; + GNUNET_assert (1 == param_length); + GNUNET_assert (scratch_length > 0); + GNUNET_break (NULL == cls); + be[0] = htonl ((uint32_t) denom_sig->cipher); + be[1] = htonl (0x01); /* magic marker: blinded */ + switch (denom_sig->cipher) + { + case TALER_DENOMINATION_RSA: + tlen = GNUNET_CRYPTO_rsa_signature_encode ( + denom_sig->details.blinded_rsa_signature, + &tbuf); + break; + // TODO: add case for Clause-Schnorr + default: + GNUNET_assert (0); + } + len = tlen + sizeof (be); + buf = GNUNET_malloc (len); + memcpy (buf, + &be, + sizeof (be)); + switch (denom_sig->cipher) + { + case TALER_DENOMINATION_RSA: + memcpy (&buf[sizeof (be)], + tbuf, + tlen); + GNUNET_free (tbuf); + break; + // TODO: add case for Clause-Schnorr + default: + GNUNET_assert (0); + } + + scratch[0] = buf; + param_values[0] = (void *) buf; + param_lengths[0] = len; + param_formats[0] = 1; + return 1; +} + + +struct GNUNET_PQ_QueryParam +TALER_PQ_query_param_blinded_denom_sig ( + const struct TALER_BlindedDenominationSignature *denom_sig) +{ + struct GNUNET_PQ_QueryParam res = { + .conv = &qconv_blinded_denom_sig, + .data = denom_sig, + .num_params = 1 + }; + + return res; +} + + +/** + * Function called to convert input argument into SQL parameters. + * + * @param cls closure * @param data pointer to input argument, here a `json_t *` * @param data_len number of bytes in @a data (if applicable) * @param[out] param_values SQL data to set |