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#include <sys/types.h>
#include <sys/ioctl.h>
#include <string.h>
#include <errno.h>
#include "../ncr.h"
#include "ncrypto.h"
extern int __ncr_file_descriptor;
int
ncr_session_once_key_data(ncr_key_t key, ncr_key_params_t params, ncr_crypto_op_t op, ncr_algorithm_t algorithm, ncr_key_t input, void *output, size_t output_size)
{
struct ncr_session_once_op_st io;
memset(&io, 0, sizeof(io));
if (input == NCR_KEY_INVALID || !output || !output_size) {
errno = EINVAL;
return -1;
}
io.init.algorithm = algorithm;
io.init.key = key;
if (params)
memmove(&io.init.params, params, sizeof(io.init.params));
io.init.op = op;
io.op.data.kdata.input = input;
io.op.data.kdata.output = output;
io.op.data.kdata.output_size = output_size;
io.op.type = NCR_KEY_DATA;
if (__ncr_file_descriptor < 0) {
errno = EBADF;
return -1;
}
if (ioctl(__ncr_file_descriptor, NCRIO_SESSION_ONCE, &io) < 0)
return -1;
switch (io.op.err) {
case NCR_VERIFICATION_FAILED:
errno = EDOM;
return -1;
case NCR_SUCCESS:
errno = 0;
return io.op.data.kdata.output_size;
default:
errno = EFAULT;
return -1;
}
}
int
ncr_session_once_direct_data(ncr_key_t key, ncr_key_params_t params, ncr_crypto_op_t op, ncr_algorithm_t algorithm, void *input, size_t input_size, void *output, size_t output_size)
{
struct ncr_session_once_op_st io;
memset(&io, 0, sizeof(io));
if (!input || !input_size || !output || !output_size) {
errno = EINVAL;
return -1;
}
io.init.key = key;
if (params)
memmove(&io.init.params, params, sizeof(io.init.params));
io.init.algorithm = algorithm;
io.init.op = op;
io.op.data.udata.input = input;
io.op.data.udata.input_size = input_size;
io.op.data.udata.output = output;
io.op.data.udata.output_size = output_size;
io.op.type = NCR_DIRECT_DATA;
if (__ncr_file_descriptor < 0) {
errno = EBADF;
return -1;
}
if (ioctl(__ncr_file_descriptor, NCRIO_SESSION_ONCE, &io) < 0)
return -1;
switch (io.op.err) {
case NCR_VERIFICATION_FAILED:
errno = EDOM;
return -1;
case NCR_SUCCESS:
errno = 0;
return io.op.data.udata.output_size;
default:
errno = EFAULT;
return -1;
}
}
int
ncr_session_init(ncr_session_t *session, ncr_key_t key, ncr_key_params_t params, ncr_crypto_op_t op, ncr_algorithm_t algorithm)
{
struct ncr_session_st io;
memset(&io, 0, sizeof(io));
if (!session) {
errno = EINVAL;
return -1;
}
io.algorithm = algorithm;
io.key = key;
if (params)
memmove(&io.params, params, sizeof(io.params));
io.op = op;
if (__ncr_file_descriptor < 0) {
errno = EBADF;
return -1;
}
if (ioctl(__ncr_file_descriptor, NCRIO_SESSION_INIT, &io) < 0)
return -1;
*session = io.ses;
return 0;
}
int
ncr_session_update_key_data(ncr_session_t session, ncr_key_t input, void *output, size_t output_size)
{
struct ncr_session_op_st io;
memset(&io, 0, sizeof(io));
if (session == NCR_SESSION_INVALID || input == NCR_KEY_INVALID) {
errno = EINVAL;
return -1;
}
io.ses = session;
io.data.kdata.input = input;
io.data.kdata.output = output;
io.data.kdata.output_size = output_size;
io.type = NCR_KEY_DATA;
if (__ncr_file_descriptor < 0) {
errno = EBADF;
return -1;
}
if (ioctl(__ncr_file_descriptor, NCRIO_SESSION_UPDATE, &io) < 0)
return -1;
return io.data.kdata.output_size;
}
int
ncr_session_update_direct_data(ncr_session_t session, void *input, size_t input_size, void *output, size_t output_size)
{
struct ncr_session_op_st io;
memset(&io, 0, sizeof(io));
if (session == NCR_SESSION_INVALID || !input || !input_size) {
errno = EINVAL;
return -1;
}
io.ses = session;
io.data.udata.input = input;
io.data.udata.input_size = input_size;
io.data.udata.output = output;
io.data.udata.output_size = output_size;
io.type = NCR_DIRECT_DATA;
if (__ncr_file_descriptor < 0) {
errno = EBADF;
return -1;
}
if (ioctl(__ncr_file_descriptor, NCRIO_SESSION_UPDATE, &io) < 0)
return -1;
return io.data.udata.output_size;
}
int
ncr_session_final(ncr_session_t session, void *output, size_t output_size)
{
struct ncr_session_op_st io;
memset(&io, 0, sizeof(io));
if (session == NCR_SESSION_INVALID) {
errno = EINVAL;
return -1;
}
io.ses = session;
io.data.udata.output = output;
io.data.udata.output_size = output_size;
io.type = NCR_DIRECT_DATA;
if (__ncr_file_descriptor < 0) {
errno = EBADF;
return -1;
}
if (ioctl(__ncr_file_descriptor, NCRIO_SESSION_FINAL, &io) < 0)
return -1;
switch (io.err) {
case NCR_VERIFICATION_FAILED:
errno = EDOM;
return -1;
case NCR_SUCCESS:
errno = 0;
return io.data.udata.output_size;
default:
errno = EFAULT;
return -1;
}
}
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