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/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file tsioblksstub.c
* @brief IOBlks stub for trusted services implementing the
* Reliance Edge api.
*
*/
#include "ch.h"
#include "chobjfifos.h"
#include "chtssi.h"
#include "tsproxystubs.h"
#include "tsioblksstub.h"
#include <redfs.h>
#include <redvolume.h>
#include <string.h>
#include <ctype.h>
/*===========================================================================*/
/* Module local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local types. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local variables. */
/*===========================================================================*/
static stub_ctx_t stub_ctx;
const VOLCONF gaRedVolConf[REDCONF_VOLUME_COUNT] = {
{
512, /* ulSectorSize.*/
IOBLKS_PART_SIZE, /* ullSectorCount.*/
0U, /* ullSectorOffset.*/
false, /* fAtomicSectorWrite.*/
1024U, /* ulInodeCount.*/
2U, /* bBlockIoRetries.*/
""
}
};
/*===========================================================================*/
/* Module local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported functions. */
/*===========================================================================*/
/**
* @brief The IOBlks stub service.
*/
THD_WORKING_AREA(waTsIOBlksStubsService, 1024);
THD_FUNCTION(TsIOBlksStubsService, tsstatep) {
stub_ctx.event_flag = EVT_F_IOBLK_NEW_OP;
TsStubService((ts_state_t *)tsstatep, &stub_ctx);
}
/**
* @name The IOBlks api, in the Reliance Edge fashion.
* @{
*/
/**
* @brief Open the block device.
*/
REDSTATUS RedOsBDevOpen(uint8_t bVolNum, BDEVOPENMODE mode) {
(void)mode;
if (bVolNum != 0)
return -RED_EINVAL;
stub_op_t *op = getNewOp(&stub_ctx);
op->op_code = IOBLKS_OP_OPEN;
op->op_p[0].dir = OP_PRMDIR_NONE;
op->op_p[0].val = (uint32_t)bVolNum;
op->op_p[1].dir = OP_PRMDIR_NONE;
op->op_p[1].val = (uint32_t)mode;
return (REDSTATUS)callRemote(op);
}
/**
* @brief Close the block device.
*/
REDSTATUS RedOsBDevClose(uint8_t bVolNum) {
if (bVolNum != 0)
return -RED_EINVAL;
stub_op_t *op = getNewOp(&stub_ctx);
op->op_code = IOBLKS_OP_CLOSE;
op->op_p[0].dir = OP_PRMDIR_NONE;
op->op_p[0].val = (uint32_t)bVolNum;
return (REDSTATUS)callRemote(op);
}
/**
* @brief Read from the block device.
*/
REDSTATUS RedOsBDevRead(uint8_t bVolNum, uint64_t ullSectorStart, uint32_t ulSectorCount, void *pBuffer) {
if ((bVolNum != 0) ||
(ullSectorStart >= gaRedVolConf[bVolNum].ullSectorCount) ||
((gaRedVolConf[bVolNum].ullSectorCount - ullSectorStart) < ulSectorCount) ||
(pBuffer == NULL))
return -RED_EINVAL;
stub_op_t *op = getNewOp(&stub_ctx);
op->op_code = IOBLKS_OP_READ;
op->op_p[0].dir = OP_PRMDIR_NONE;
op->op_p[0].val = (uint32_t)bVolNum;
op->op_p[1].dir = OP_PRMDIR_NONE;
op->op_p[1].val = (uint32_t)ullSectorStart;
op->op_p[2].dir = OP_PRMDIR_NONE;
op->op_p[2].val = (uint32_t)ulSectorCount;
op->op_p[3].dir = OP_PRMDIR_OUT;
op->op_p[3].val = (uint32_t)pBuffer;
op->op_p[3].size = (uint32_t)(ulSectorCount * IOBLKS_SECT_SIZE);
return (int)callRemote(op);
}
/**
* @brief Write to the block device.
*/
REDSTATUS RedOsBDevWrite(uint8_t bVolNum, uint64_t ullSectorStart, uint32_t ulSectorCount, const void *pBuffer) {
if ((bVolNum != 0) ||
(ullSectorStart >= gaRedVolConf[bVolNum].ullSectorCount) ||
((gaRedVolConf[bVolNum].ullSectorCount - ullSectorStart) < ulSectorCount) ||
(pBuffer == NULL))
return -RED_EINVAL;
stub_op_t *op = getNewOp(&stub_ctx);
op->op_code = IOBLKS_OP_WRITE;
op->op_p[0].dir = OP_PRMDIR_NONE;
op->op_p[0].val = (uint32_t)bVolNum;
op->op_p[1].dir = OP_PRMDIR_NONE;
op->op_p[1].val = (uint32_t)ullSectorStart;
op->op_p[2].dir = OP_PRMDIR_NONE;
op->op_p[2].val = (uint32_t)ulSectorCount;
op->op_p[3].dir = OP_PRMDIR_IN;
op->op_p[3].val = (uint32_t)pBuffer;
op->op_p[3].size = (uint32_t)(ulSectorCount * IOBLKS_SECT_SIZE);
return (int)callRemote(op);
}
/**
* @brief Flush the block device.
*/
REDSTATUS RedOsBDevFlush(uint8_t bVolNum) {
if (bVolNum != 0)
return -RED_EINVAL;
stub_op_t *op = getNewOp(&stub_ctx);
op->op_code = IOBLKS_OP_FLUSH;
op->op_p[0].dir = OP_PRMDIR_NONE;
op->op_p[0].val = (uint32_t)bVolNum;
return (REDSTATUS)callRemote(op);
}
/** @} */
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