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Merge pull request martijnvanbrummelen#498 from ggruber/master
improved SCSI disk handling
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| /* | ||
| * get_scsi_temp.c: functions that populate the drive temperature variables | ||
| * in SCSI/SAS drives context structure. | ||
| * Routines from hddtemp are used here. | ||
| * | ||
| * Author: Gerold Gruber <[email protected]> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify it under | ||
| * the terms of the GNU General Public License as published by the Free Software | ||
| * Foundation, version 2. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, but WITHOUT | ||
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | ||
| * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more | ||
| * details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License along with | ||
| * this program; if not, write to the Free Software Foundation, Inc., | ||
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| */ | ||
|
|
||
| //#define _LARGEFILE64_SOURCE | ||
| //#define _FILE_OFFSET_BITS 64 | ||
| #define _BSD_SOURCE | ||
|
|
||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
| #include <stdint.h> | ||
| #include <errno.h> | ||
| #include <dirent.h> | ||
| #include <assert.h> | ||
|
|
||
| #include "nwipe.h" | ||
| #include "context.h" | ||
| #include "method.h" | ||
| #include "device.h" | ||
| #include "prng.h" | ||
| #include "options.h" | ||
| #include "device.h" | ||
| #include "logging.h" | ||
| #include "temperature.h" | ||
| #include "miscellaneous.h" | ||
| #include "hddtemp.h" | ||
| #include "scsi.h" | ||
|
|
||
| int scsi_get_temperature( struct disk * ); | ||
|
|
||
| int nwipe_init_scsi_temperature( nwipe_context_t* c ) | ||
| { | ||
|
|
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| /* dsk anlegen, malloc */ | ||
| struct disk *dsk = (struct disk *) malloc(sizeof(struct disk)); | ||
|
|
||
| /* Check the allocation. */ | ||
| if( !dsk ) | ||
| { | ||
| nwipe_perror( errno, __FUNCTION__, "malloc" ); | ||
| nwipe_log( NWIPE_LOG_FATAL, "Unable to get memory for disk struct for %s", | ||
| c->device_name ); | ||
| exit( 1 ) ; | ||
| } | ||
|
|
||
| assert(dsk); | ||
|
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| memset(dsk, 0, sizeof(*dsk)); | ||
|
|
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| /* save the dsk pointer for later use */ | ||
| c->templ_disk = dsk; | ||
|
|
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| /* initialize */ | ||
| dsk->drive = c->device_name; | ||
| dsk->type = BUS_SCSI; /* we know this as we are only called in this case */ | ||
|
|
||
| errno = 0; | ||
| dsk->errormsg[0] = '\0'; | ||
| if( (dsk->fd = open(dsk->drive, O_RDONLY | O_NONBLOCK)) < 0) { | ||
| snprintf(dsk->errormsg, MAX_ERRORMSG_SIZE, "open: %s\n", strerror(errno)); | ||
| dsk->type = ERROR; | ||
| return 1; | ||
| } | ||
|
|
||
| // sg_logs -t <device> | ||
| if( scsi_get_temperature( dsk ) == GETTEMP_SUCCESS ) | ||
| { | ||
| c->temp1_input = dsk->value; | ||
| c->temp1_crit = dsk->refvalue; | ||
| c->temp1_lcrit = -40; /* just to give it a value with some kind of sense */ | ||
| c->temp1_highest = dsk->value; | ||
| c->temp1_lowest = dsk->value; | ||
| c->temp1_min = dsk->value; | ||
| c->temp1_max = dsk->value; | ||
| } | ||
| else | ||
| { | ||
| nwipe_log( NWIPE_LOG_ERROR, "Can not read SCSI temperature for %s, %s", | ||
| dsk->drive, dsk->errormsg ); | ||
| close( dsk->fd ); | ||
| free( dsk ); | ||
| c->templ_disk = NULL; | ||
| return 1; | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
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||
|
|
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| int nwipe_get_scsi_temperature( nwipe_context_t* c ) | ||
| { | ||
| struct disk *dsk; | ||
|
|
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| dsk = c->templ_disk; | ||
|
|
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| if( c->templ_disk != NULL && c->templ_disk->fd != -1 ) | ||
| { | ||
| if( scsi_get_temperature( dsk ) == GETTEMP_SUCCESS ) | ||
| { | ||
| c->temp1_input = dsk->value; | ||
| if( c->temp1_max == NO_TEMPERATURE_DATA ) | ||
| { | ||
| c->temp1_max = c->temp1_input; | ||
| } | ||
| else | ||
| { | ||
| if( c->temp1_input > c->temp1_max ) | ||
| { | ||
| c->temp1_max = c->temp1_input; | ||
| c->temp1_highest = c->temp1_input; | ||
| } | ||
| } | ||
| if( c->temp1_min == NO_TEMPERATURE_DATA ) | ||
| { | ||
| c->temp1_min = c->temp1_input; | ||
| } | ||
| else | ||
| { | ||
| if( c->temp1_input < c->temp1_min ) | ||
| { | ||
| c->temp1_min = c->temp1_input; | ||
| c->temp1_lowest = c->temp1_input; | ||
| } | ||
| } | ||
| } | ||
| else | ||
| { | ||
| nwipe_log( NWIPE_LOG_ERROR, "Could not read SCSI temperature for %s, %s", | ||
| dsk->drive, dsk->errormsg ); | ||
| return 2; | ||
| } | ||
| } | ||
| else | ||
| { | ||
| nwipe_log( NWIPE_LOG_INFO, "no SCSI temperature reading for %s", dsk->drive ); | ||
| return 1; | ||
| } | ||
| return 0; | ||
| } | ||
|
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| void nwipe_shut_scsi_temperature( nwipe_context_t* c ) | ||
| { | ||
| if( c->templ_disk->fd != -1 ) | ||
| { | ||
| close( c->templ_disk->fd ); | ||
| } | ||
| if( c->templ_disk != NULL ) | ||
| { | ||
| free( c->templ_disk ); | ||
| } | ||
|
|
||
| return; | ||
| } |
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