mirror of
https://github.com/aaru-dps/aaruremote.git
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80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* This file is part of the Aaru Remote Server.
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* Copyright (c) 2019-2021 Natalia Portillo.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <malloc.h>
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#include <scsi/sg.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include "../aaruremote.h"
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#include "linux.h"
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int32_t SendScsiCommand(void *device_ctx, char *cdb, char *buffer, char **sense_buffer, uint32_t timeout,
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int32_t direction, uint32_t *duration, uint32_t *sense, uint32_t cdb_len, uint32_t *buf_len,
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uint32_t *sense_len)
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{
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DeviceContext *ctx = device_ctx;
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sg_io_hdr_t hdr;
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int dir, ret;
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*sense_len = 32;
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if(!ctx) return -1;
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memset(&hdr, 0, sizeof(sg_io_hdr_t));
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*sense_buffer = malloc(*sense_len);
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if(!*sense_buffer) return -1;
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switch(direction)
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{
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case AARUREMOTE_SCSI_DIRECTION_IN:
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dir = SG_DXFER_FROM_DEV;
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break;
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case AARUREMOTE_SCSI_DIRECTION_OUT:
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dir = SG_DXFER_TO_DEV;
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break;
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case AARUREMOTE_SCSI_DIRECTION_INOUT:
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case AARUREMOTE_SCSI_DIRECTION_UNSPECIFIED:
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dir = SG_DXFER_TO_FROM_DEV;
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break;
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case AARUREMOTE_SCSI_DIRECTION_NONE:
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default:
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dir = SG_DXFER_NONE;
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break;
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}
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hdr.interface_id = 'S';
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hdr.cmd_len = (char)cdb_len;
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hdr.mx_sb_len = 32;
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hdr.dxfer_direction = dir;
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hdr.dxfer_len = *buf_len;
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hdr.dxferp = buffer;
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hdr.cmdp = (unsigned char *)cdb;
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hdr.sbp = (unsigned char *)*sense_buffer;
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hdr.timeout = timeout;
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hdr.flags = SG_FLAG_DIRECT_IO;
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ret = ioctl(ctx->fd, SG_IO, &hdr);
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*sense = (hdr.info & SG_INFO_OK_MASK) != SG_INFO_OK;
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// TODO: Manual timing if duration is 0
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*duration = hdr.duration;
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*sense_len = hdr.sb_len_wr;
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return ret; // TODO: Implement
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} |