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/*
* Copyright (c) 1999-2006 Douglas Gilbert.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "sg_io_linux.h"
/* Version 1.01 20060626 */
void sg_print_masked_status(int masked_status)
{
int scsi_status = (masked_status << 1) & 0x7e;
sg_print_scsi_status(scsi_status);
}
static const char * linux_host_bytes[] = {
"DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT",
"DID_BAD_TARGET", "DID_ABORT", "DID_PARITY", "DID_ERROR",
"DID_RESET", "DID_BAD_INTR", "DID_PASSTHROUGH", "DID_SOFT_ERROR",
"DID_IMM_RETRY", "DID_REQUEUE"
};
#define LINUX_HOST_BYTES_SZ \
(int)(sizeof(linux_host_bytes) / sizeof(linux_host_bytes[0]))
void sg_print_host_status(int host_status)
{
if (NULL == sg_warnings_strm)
sg_warnings_strm = stderr;
fprintf(sg_warnings_strm, "Host_status=0x%02x ", host_status);
if ((host_status < 0) || (host_status >= LINUX_HOST_BYTES_SZ))
fprintf(sg_warnings_strm, "is invalid ");
else
fprintf(sg_warnings_strm, "[%s] ", linux_host_bytes[host_status]);
}
static const char * linux_driver_bytes[] = {
"DRIVER_OK", "DRIVER_BUSY", "DRIVER_SOFT", "DRIVER_MEDIA",
"DRIVER_ERROR", "DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD",
"DRIVER_SENSE"
};
#define LINUX_DRIVER_BYTES_SZ \
(int)(sizeof(linux_driver_bytes) / sizeof(linux_driver_bytes[0]))
static const char * linux_driver_suggests[] = {
"SUGGEST_OK", "SUGGEST_RETRY", "SUGGEST_ABORT", "SUGGEST_REMAP",
"SUGGEST_DIE", "UNKNOWN","UNKNOWN","UNKNOWN",
"SUGGEST_SENSE"
};
#define LINUX_DRIVER_SUGGESTS_SZ \
(int)(sizeof(linux_driver_suggests) / sizeof(linux_driver_suggests[0]))
void sg_print_driver_status(int driver_status)
{
int driv, sugg;
const char * driv_cp = "invalid";
const char * sugg_cp = "invalid";
driv = driver_status & SG_LIB_DRIVER_MASK;
if (driv < LINUX_DRIVER_BYTES_SZ)
driv_cp = linux_driver_bytes[driv];
sugg = (driver_status & SG_LIB_SUGGEST_MASK) >> 4;
if (sugg < LINUX_DRIVER_SUGGESTS_SZ)
sugg_cp = linux_driver_suggests[sugg];
if (NULL == sg_warnings_strm)
sg_warnings_strm = stderr;
fprintf(sg_warnings_strm, "Driver_status=0x%02x", driver_status);
fprintf(sg_warnings_strm, " [%s, %s] ", driv_cp, sugg_cp);
}
/* Returns 1 if no errors found and thus nothing printed; otherwise
prints error/warning (prefix by 'leadin') and returns 0. */
static int sg_linux_sense_print(const char * leadin, int scsi_status,
int host_status, int driver_status,
const unsigned char * sense_buffer,
int sb_len, int raw_sinfo)
{
int done_leadin = 0;
int done_sense = 0;
if (NULL == sg_warnings_strm)
sg_warnings_strm = stderr;
scsi_status &= 0x7e; /*sanity */
if ((0 == scsi_status) && (0 == host_status) && (0 == driver_status))
return 1; /* No problems */
if (0 != scsi_status) {
if (leadin)
fprintf(sg_warnings_strm, "%s: ", leadin);
done_leadin = 1;
fprintf(sg_warnings_strm, "SCSI status: ");
sg_print_scsi_status(scsi_status);
fprintf(sg_warnings_strm, "\n");
if (sense_buffer && ((scsi_status == SAM_STAT_CHECK_CONDITION) ||
(scsi_status == SAM_STAT_COMMAND_TERMINATED))) {
/* SAM_STAT_COMMAND_TERMINATED is obsolete */
sg_print_sense(0, sense_buffer, sb_len, raw_sinfo);
done_sense = 1;
}
}
if (0 != host_status) {
if (leadin && (! done_leadin))
fprintf(sg_warnings_strm, "%s: ", leadin);
if (done_leadin)
fprintf(sg_warnings_strm, "plus...: ");
else
done_leadin = 1;
sg_print_host_status(host_status);
fprintf(sg_warnings_strm, "\n");
}
if (0 != driver_status) {
if (done_sense &&
(SG_LIB_DRIVER_SENSE == (SG_LIB_DRIVER_MASK & driver_status)))
return 0;
if (leadin && (! done_leadin))
fprintf(sg_warnings_strm, "%s: ", leadin);
if (done_leadin)
fprintf(sg_warnings_strm, "plus...: ");
else
done_leadin = 1;
sg_print_driver_status(driver_status);
fprintf(sg_warnings_strm, "\n");
if (sense_buffer && (! done_sense) &&
(SG_LIB_DRIVER_SENSE == (SG_LIB_DRIVER_MASK & driver_status)))
sg_print_sense(0, sense_buffer, sb_len, raw_sinfo);
}
return 0;
}
#ifdef SG_IO
int sg_normalize_sense(const struct sg_io_hdr * hp,
struct sg_scsi_sense_hdr * sshp)
{
if ((NULL == hp) || (0 == hp->sb_len_wr)) {
if (sshp)
memset(sshp, 0, sizeof(struct sg_scsi_sense_hdr));
return 0;
}
return sg_scsi_normalize_sense(hp->sbp, hp->sb_len_wr, sshp);
}
/* Returns 1 if no errors found and thus nothing printed; otherwise
returns 0. */
int sg_chk_n_print3(const char * leadin, struct sg_io_hdr * hp,
int raw_sinfo)
{
return sg_linux_sense_print(leadin, hp->status, hp->host_status,
hp->driver_status, hp->sbp, hp->sb_len_wr,
raw_sinfo);
}
#endif
/* Returns 1 if no errors found and thus nothing printed; otherwise
returns 0. */
int sg_chk_n_print(const char * leadin, int masked_status,
int host_status, int driver_status,
const unsigned char * sense_buffer, int sb_len,
int raw_sinfo)
{
int scsi_status = (masked_status << 1) & 0x7e;
return sg_linux_sense_print(leadin, scsi_status, host_status,
driver_status, sense_buffer, sb_len,
raw_sinfo);
}
#ifdef SG_IO
int sg_err_category3(struct sg_io_hdr * hp)
{
return sg_err_category_new(hp->status, hp->host_status,
hp->driver_status, hp->sbp, hp->sb_len_wr);
}
#endif
int sg_err_category(int masked_status, int host_status,
int driver_status, const unsigned char * sense_buffer,
int sb_len)
{
int scsi_status = (masked_status << 1) & 0x7e;
return sg_err_category_new(scsi_status, host_status, driver_status,
sense_buffer, sb_len);
}
int sg_err_category_new(int scsi_status, int host_status, int driver_status,
const unsigned char * sense_buffer, int sb_len)
{
int masked_driver_status = (SG_LIB_DRIVER_MASK & driver_status);
scsi_status &= 0x7e;
if ((0 == scsi_status) && (0 == host_status) &&
(0 == masked_driver_status))
return SG_LIB_CAT_CLEAN;
if ((SAM_STAT_CHECK_CONDITION == scsi_status) ||
(SAM_STAT_COMMAND_TERMINATED == scsi_status) ||
(SG_LIB_DRIVER_SENSE == masked_driver_status))
return sg_err_category_sense(sense_buffer, sb_len);
if (0 != host_status) {
if ((SG_LIB_DID_NO_CONNECT == host_status) ||
(SG_LIB_DID_BUS_BUSY == host_status) ||
(SG_LIB_DID_TIME_OUT == host_status))
return SG_LIB_CAT_TIMEOUT;
}
if (SG_LIB_DRIVER_TIMEOUT == masked_driver_status)
return SG_LIB_CAT_TIMEOUT;
return SG_LIB_CAT_OTHER;
}
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