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205701b3dec4cf3e4e1125f4758e39eec3e3853d
dvdisaster/rs03-verify.c
Rogério Brito 555c0daf7d Imported Upstream version 0.79.2
2010-11-06 20:36:40 -02:00

1334 lines
44 KiB
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/* dvdisaster: Additional error correction for optical media.
* Copyright (C) 2004-2010 Carsten Gnoerlich.
* Project home page: http://www.dvdisaster.com
* Email: carsten@dvdisaster.com -or- cgnoerlich@fsfe.org
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA,
* or direct your browser at http://www.gnu.org.
*/
#include "dvdisaster.h"
#include "rs03-includes.h"
#define EXIT_CODE_SIZE_MISMATCH 1
#define EXIT_CODE_VERSION_MISMATCH 2
#define EXIT_CODE_UNEXPECTED_EOF 10
#define EXIT_CODE_MISSING_SECTOR 11
#define EXIT_CODE_CHECKSUM_ERROR 12
#define EXIT_CODE_SYNDROME_ERROR 13
/***
*** Reset the verify output window
***/
void ResetRS03VerifyWindow(Method *self)
{ RS03Widgets *wl = (RS03Widgets*)self->widgetList;
SetLabelText(GTK_LABEL(wl->cmpImageSectors), "");
SetLabelText(GTK_LABEL(wl->cmpImageMd5Sum), "");
SetLabelText(GTK_LABEL(wl->cmpDataSection), "");
SetLabelText(GTK_LABEL(wl->cmpCrcSection), "");
SetLabelText(GTK_LABEL(wl->cmpEccSection), "");
SetLabelText(GTK_LABEL(wl->cmpImageErasure), "");
SetLabelText(GTK_LABEL(wl->cmpImagePrognosis), "");
SetLabelText(GTK_LABEL(wl->cmpImageErasureCnt), "");
SetLabelText(GTK_LABEL(wl->cmpImagePrognosisMsg), "");
SetLabelText(GTK_LABEL(wl->cmpImageResult), "");
SetLabelText(GTK_LABEL(wl->cmpEccCreatedBy), "dvdisaster");
SetLabelText(GTK_LABEL(wl->cmpEccMethod), "");
SetLabelText(GTK_LABEL(wl->cmpEccType), "");
SetLabelText(GTK_LABEL(wl->cmpEccRequires), "");
SetLabelText(GTK_LABEL(wl->cmpEccDataCrc), _("Data checksum:"));
SetLabelText(GTK_LABEL(wl->cmpEccDataCrcVal), "");
SetLabelText(GTK_LABEL(wl->cmpEccResult), "");
SetLabelText(GTK_LABEL(wl->cmpEccSynLabel), "");
SetLabelText(GTK_LABEL(wl->cmpEccSyndromes), "");
wl->lastPercent = 0;
FillSpiral(wl->cmpSpiral, Closure->background);
DrawSpiral(wl->cmpSpiral);
}
/***
*** Manage the image spiral
***/
/*
* Update part of the spiral
*/
typedef struct _spiral_idle_info
{ Spiral *cmpSpiral;
GdkColor *segColor;
int from, to;
} spiral_idle_info;
static gboolean spiral_idle_func(gpointer data)
{ spiral_idle_info *sii = (spiral_idle_info*)data;
int i;
for(i=sii->from; i<=sii->to; i++)
DrawSpiralSegment(sii->cmpSpiral, sii->segColor, i-1);
g_free(sii);
return FALSE;
}
static void add_verify_values(Method *method, int percent,
gint64 newMissing, gint64 newCrcErrors)
{ RS03Widgets *wl = (RS03Widgets*)method->widgetList;
spiral_idle_info *sii = g_malloc(sizeof(spiral_idle_info));
if(percent < 0 || percent > VERIFY_IMAGE_SEGMENTS)
return;
sii->cmpSpiral = wl->cmpSpiral;
sii->segColor = Closure->greenSector;
if(newCrcErrors) sii->segColor = Closure->yellowSector;
if(newMissing) sii->segColor = Closure->redSector;
sii->from = wl->lastPercent+1;
sii->to = percent;
wl->lastPercent = percent;
g_idle_add(spiral_idle_func, sii);
}
/*
* Redraw whole spiral
*/
static void redraw_spiral(RS03Widgets *wl)
{ int x = wl->cmpSpiral->mx - wl->cmpSpiral->diameter/2 + 10;
DrawSpiralLabel(wl->cmpSpiral, wl->cmpLayout,
_("Good sectors"), Closure->greenSector, x, 1);
DrawSpiralLabel(wl->cmpSpiral, wl->cmpLayout,
_("Sectors with CRC errors"), Closure->yellowSector, x, 2);
DrawSpiralLabel(wl->cmpSpiral, wl->cmpLayout,
_("Missing sectors"), Closure->redSector, x, 3);
DrawSpiral(wl->cmpSpiral);
}
/*
* expose event handler for the spiral
*/
static gboolean expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{ RS03Widgets *wl = (RS03Widgets*)data;
GtkAllocation *a = &widget->allocation;
int w,h,size;
/* Finish spiral initialization */
if(!wl->cmpLayout)
{ SetSpiralWidget(wl->cmpSpiral, widget);
wl->cmpLayout = gtk_widget_create_pango_layout(widget, NULL);
}
SetText(wl->cmpLayout, _("Missing sectors"), &w, &h);
size = wl->cmpSpiral->diameter + 20 + 3*(10+h); /* approx. size of spiral + labels */
wl->cmpSpiral->mx = a->width / 2;
wl->cmpSpiral->my = (wl->cmpSpiral->diameter + a->height - size)/2;
if(!event->count) /* Exposure compression */
redraw_spiral(wl); /* Redraw the spiral */
return TRUE;
}
/***
*** Create the notebook contents for the verify output
***/
void CreateRS03VerifyWindow(Method *self, GtkWidget *parent)
{ RS03Widgets *wl = (RS03Widgets*)self->widgetList;
GtkWidget *sep,*ignore,*table,*table2,*lab,*frame,*d_area;
int y1,y2;
wl->cmpHeadline = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(wl->cmpHeadline), 0.0, 0.0);
gtk_misc_set_padding(GTK_MISC(wl->cmpHeadline), 5, 0);
gtk_box_pack_start(GTK_BOX(parent), wl->cmpHeadline, FALSE, FALSE, 3);
sep = gtk_hseparator_new();
gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
sep = gtk_hseparator_new();
gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
table = gtk_table_new(2, 2, FALSE);
gtk_container_set_border_width(GTK_CONTAINER(table), 5);
gtk_box_pack_start(GTK_BOX(parent), table, TRUE, TRUE, 0);
/*** Ecc data info */
frame = gtk_frame_new(_utf("Error correction properties"));
gtk_table_attach(GTK_TABLE(table), frame, 0, 1, 0, 1, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 5);
table2 = gtk_table_new(2, 8, FALSE);
ignore = gtk_label_new("ecc info");
gtk_container_set_border_width(GTK_CONTAINER(table2), 5);
gtk_container_add(GTK_CONTAINER(frame), table2);
y1=0; y2=1;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Type:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpEccType = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Method:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpEccMethod = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Created by:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpEccCreatedBy = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Requires:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpEccRequires = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = wl->cmpEccDataCrc = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Data checksum:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpEccDataCrcVal = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = wl->cmpEccResult = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 0, 2, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 4);
/*** Image spiral */
frame = gtk_frame_new(_utf("Image state"));
gtk_table_attach(GTK_TABLE(table), frame, 1, 2, 0, 2, GTK_SHRINK | GTK_FILL, GTK_EXPAND | GTK_FILL, 5, 5);
wl->cmpSpiral = CreateSpiral(Closure->grid, Closure->background, 10, 5, VERIFY_IMAGE_SEGMENTS);
d_area = wl->cmpDrawingArea = gtk_drawing_area_new();
gtk_widget_set_size_request(d_area, wl->cmpSpiral->diameter+20, -1);
gtk_container_add(GTK_CONTAINER(frame), d_area);
g_signal_connect(G_OBJECT(d_area), "expose_event", G_CALLBACK(expose_cb), (gpointer)wl);
/*** Image info */
frame = gtk_frame_new(_utf("Data integrity"));
gtk_table_attach(GTK_TABLE(table), frame, 0, 1, 1, 2, GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 5, 5);
table2 = gtk_table_new(2, 7, FALSE);
ignore = gtk_label_new("image info");
gtk_container_set_border_width(GTK_CONTAINER(table2), 5);
gtk_container_add(GTK_CONTAINER(frame), table2);
y1=0; y2=1;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Medium sectors:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpImageSectors = gtk_label_new("0");
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Data checksum:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpImageMd5Sum = gtk_label_new("0");
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Data section:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpDataSection = gtk_label_new(".");
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Crc section:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpCrcSection = gtk_label_new(".");
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Ecc section:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpEccSection= gtk_label_new(".");
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = wl->cmpEccSynLabel = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
SetLabelText(GTK_LABEL(lab), _("Ecc block test:"));
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpEccSyndromes = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = wl->cmpImageErasure = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpImageErasureCnt = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = wl->cmpImagePrognosis = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 0, 1, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 2 );
lab = wl->cmpImagePrognosisMsg = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 1, 2, y1, y2, GTK_EXPAND | GTK_FILL, GTK_SHRINK, 0, 0);
y1++; y2++;
lab = wl->cmpImageResult = gtk_label_new(NULL);
gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0);
gtk_table_attach(GTK_TABLE(table2), lab, 0, 2, y1, y2, GTK_SHRINK | GTK_FILL, GTK_SHRINK, 5, 4);
}
/***
*** Check the consistency of the augmented image
***/
/*
* housekeeping
*/
typedef struct
{ LargeFile *imgFile;
LargeFile *eccFile;
EccHeader *eh;
RS03Layout *lay;
RS03Widgets *wl;
Bitmap *map;
guint32 *crcBuf;
gint8 *crcValid;
unsigned char crcSum[16];
unsigned char *eccBlock[256];
GaloisTables *gt;
ReedSolomonTables *rt;
} verify_closure;
static void cleanup(gpointer data)
{ verify_closure *vc = (verify_closure*)data;
int i;
Closure->cleanupProc = NULL;
if(Closure->guiMode)
AllowActions(TRUE);
if(vc->imgFile) LargeClose(vc->imgFile);
if(vc->lay)
{ if(vc->lay->target == ECC_FILE && vc->eccFile)
LargeClose(vc->eccFile);
g_free(vc->lay);
}
if(vc->map) FreeBitmap(vc->map);
if(vc->crcBuf) g_free(vc->crcBuf);
if(vc->crcValid) g_free(vc->crcValid);
for(i=0; i<255; i++)
if(vc->eccBlock[i])
g_free(vc->eccBlock[i]);
if(vc->gt) FreeGaloisTables(vc->gt);
if(vc->rt) FreeReedSolomonTables(vc->rt);
g_free(vc);
if(Closure->guiMode)
g_thread_exit(0);
}
/***
*** Read the crc layer. Descramble CRC values from ECC block order.
***/
static void read_crc(verify_closure *vc, RS03Layout *lay, gint64 *crc_sig_errors)
{ EccHeader *eh = vc->eh;
LargeFile *file;
gint64 block_idx[256];
guint32 crc_buf[512];
gint64 crc_sector,s;
int i,crc_idx;
int crc_valid = 1;
/* Allocate buffer for ascending sector order CRCs */
vc->crcBuf = g_malloc(2048 * lay->sectorsPerLayer);
vc->crcValid = g_malloc(512 * lay->sectorsPerLayer);
/* First sector containing crc data */
file = lay->target == ECC_FILE ? vc->eccFile : vc->imgFile;
if(!LargeSeek(file, 2048*(lay->firstCrcPos)))
{ if(lay->target == ECC_FILE)
Stop(_("Failed seeking to sector %lld in ecc file: %s"),
lay->firstCrcPos, strerror(errno));
else Stop(_("Failed seeking to sector %lld in image: %s"),
lay->firstCrcPos, strerror(errno));
}
crc_sector = lay->firstCrcPos;
/* Initialize ecc block index pointers.
Note that CRC blocks are shifted by one
(each ECC block contains the CRC for the next ECC block) */
for(s=0, i=0; i<lay->ndata; s+=lay->sectorsPerLayer, i++)
block_idx[i] = s+1;
crc_idx = 512; /* force crc buffer reload */
/* Cycle through the ecc blocks.
Each ecc block contains the CRCs for the following ecc block;
these are rearranged in ascending sector order. */
for(s=0; s<lay->sectorsPerLayer; s++)
{ int err;
/* Get CRC sector for current ecc block */
if(LargeRead(file, crc_buf, 2048) != 2048)
Stop(_("problem reading crc data: %s"), strerror(errno));
err = CheckForMissingSector((unsigned char*)crc_buf, crc_sector, eh->mediumFP, eh->fpSector);
if(err != SECTOR_PRESENT)
ExplainMissingSector((unsigned char*)crc_buf, crc_sector, err, TRUE);
crc_sector++;
crc_valid = (err == SECTOR_PRESENT);
/* Check the CrcBlock data structure */
if(crc_valid)
{ CrcBlock *cb = (CrcBlock*)crc_buf;
if( memcmp(cb->cookie, "*dvdisaster*", 12)
||memcmp(cb->method, "RS03", 4))
{ crc_valid = FALSE;
(*crc_sig_errors)++;
}
else
{ guint32 recorded_crc = cb->selfCRC;
guint32 real_crc;
#ifdef HAVE_BIG_ENDIAN
cb->selfCRC = 0x47504c00;
#else
cb->selfCRC = 0x4c5047;
#endif
real_crc = Crc32((unsigned char*)cb, 2048);
if(real_crc != recorded_crc)
{ crc_valid = FALSE;
(*crc_sig_errors)++;
}
}
}
/* Go through all data sectors of current ecc block;
distribute the CRC values */
for(i=0; i<lay->ndata-1; i++)
{
/* CRC sums for the first ecc block are contained in the last
CRC sector. Wrap the block_idx accordingly. */
if(s == lay->sectorsPerLayer-1)
block_idx[i] = i*lay->sectorsPerLayer;
/* Sort crc into appropriate place */
vc->crcBuf[block_idx[i]] = crc_buf[i];
vc->crcValid[block_idx[i]] = crc_valid;
block_idx[i]++;
}
}
}
/***
*** Prognosis for correctability
***/
static int prognosis(verify_closure *vc, gint64 missing, gint64 expected)
{ int j,eccblock;
int worst_ecc = 0;
gint64 damaged_sectors = 0, damaged_eccsecs = 0;
gint64 correctable = 0;
gint64 recoverable;
#if 0 //FIXME: remove
printf("prognosis(%lld, %lld)\n", missing, expected);
for(j=0; j<GF_FIELDMAX*vc->lay->sectorsPerLayer; j++)
if(!GetBit(vc->map, j))
printf("%6d missing\n", j);
#endif
for(eccblock=0; eccblock<vc->lay->sectorsPerLayer; eccblock++)
{ int count = 255;
/* Note: ecc file sectors are virtually mapped to augmented image sectors */
for(j=0; j<255; j++)
{ gint64 sector = j*vc->lay->sectorsPerLayer+eccblock;
if(GetBit(vc->map, sector))
count--;
else damaged_sectors++;
}
if(count>0) damaged_eccsecs++;
if(count>worst_ecc) worst_ecc = count;
if(count<=vc->lay->nroots) correctable += count;
}
recoverable = expected - missing + correctable;
if(damaged_sectors > 0)
{ int percentage = (1000*recoverable) / expected;
PrintLog(_("- erasure counts : avg = %.1f; worst = %d per ecc block.\n"),
(double)damaged_sectors/(double)damaged_eccsecs,worst_ecc);
PrintLog(_("- prognosis : %lld of %lld sectors recoverable (%d.%d%%)\n"),
recoverable, expected, percentage/10, percentage%10);
if(Closure->guiMode)
{ SetLabelText(GTK_LABEL(vc->wl->cmpImageErasure), _("Erasure counts:"));
SetLabelText(GTK_LABEL(vc->wl->cmpImagePrognosis), _("Prognosis:"));
SetLabelText(GTK_LABEL(vc->wl->cmpImageErasureCnt),
_("<span %s>avg = %.1f; worst = %d per ecc block.</span>"),
worst_ecc <= vc->lay->nroots ? Closure->greenMarkup : Closure->redMarkup,
(double)damaged_sectors/(double)damaged_eccsecs,worst_ecc);
SetLabelText(GTK_LABEL(vc->wl->cmpImagePrognosisMsg),
_("<span %s>%lld of %lld sectors recoverable (%d.%d%%)</span>"),
recoverable < expected ? Closure->redMarkup : Closure->greenMarkup,
recoverable, expected, percentage/10, percentage%10);
}
}
if(damaged_sectors && worst_ecc <= vc->lay->nroots && recoverable >= expected)
return TRUE;
else return FALSE;
}
/***
*** Error syndrome check
***/
static int check_syndromes(verify_closure *vc)
{ RS03Layout *lay = vc->lay;
LargeFile *eccfile;
gint64 layer_idx[255];
gint64 li,ecc_block;
gint64 cache_idx = Closure->prefetchSectors;
gint64 ecc_good, ecc_bad, ecc_bad_sub;
int percent,last_percent = -1;
int bad_counted;
int layer,i,j;
if(Closure->guiMode)
SetLabelText(GTK_LABEL(vc->wl->cmpHeadline), "<big>%s</big>\n<i>%s</i>",
_("Checking the image and error correction files."),
_("- Checking ecc blocks (deep verify) -"));
/* Allocate buffers and initialize layer sector addresses */
for(i=0, li=0; i<GF_FIELDMAX; i++,li+=lay->sectorsPerLayer)
{ layer_idx[i] = li;
vc->eccBlock[i] = g_try_malloc(2048*Closure->prefetchSectors);
if(!vc->eccBlock[i]) /* out of memory */
{ int j;
for(j=0; j<i; j++)
g_free(vc->eccBlock[j]);
if(Closure->guiMode)
SetLabelText(GTK_LABEL(vc->wl->cmpEccSyndromes),
_("<span %s>Out of memory; try reducing sector prefetch!</span>"),
Closure->redMarkup);
PrintLog(_("* Ecc block test : out of memory; try reducing sector prefetch!\n"));
return 0;
}
}
/* Determine source file for ecc data */
eccfile = lay->target == ECC_FILE ? vc->eccFile : vc->imgFile;
/* Init Reed-Solomon tables */
vc->gt = CreateGaloisTables(RS_GENERATOR_POLY);
vc->rt = CreateReedSolomonTables(vc->gt, RS_FIRST_ROOT, RS_PRIM_ELEM, lay->nroots);
/* Check the error syndromes */
ecc_good = ecc_bad = ecc_bad_sub = 0;
for(ecc_block=0; ecc_block<lay->sectorsPerLayer; ecc_block++)
{ gint64 num_sectors = 0;
unsigned char data[GF_FIELDMAX];
/* Check for user interruption */
if(Closure->stopActions)
{ SetLabelText(GTK_LABEL(vc->wl->cmpEccSyndromes),
_("<span %s>Aborted by user request!</span>"),
Closure->redMarkup);
return 0;
}
/* Reload cache? */
if(cache_idx == Closure->prefetchSectors)
{
cache_idx = 0;
num_sectors = Closure->prefetchSectors;
if(ecc_block+num_sectors >= lay->sectorsPerLayer)
num_sectors = lay->sectorsPerLayer - ecc_block;
for(layer=0; layer<GF_FIELDMAX; layer++)
if(layer < lay->ndata-1)
RS03ReadSectors(vc->imgFile, vc->lay, vc->eccBlock[layer],
layer, ecc_block, num_sectors, RS03_READ_DATA);
else
RS03ReadSectors(eccfile, vc->lay, vc->eccBlock[layer],
layer, ecc_block, num_sectors, RS03_READ_CRC | RS03_READ_ECC);
}
/* Calculate the error syndromes.
Note that we are only called when the image does not contain
dead sector markers; therefore we can skip this test. */
bad_counted = FALSE;
for(i=0; i<2048; i++)
{ int result;
for(j=0; j<GF_FIELDMAX; j++)
data[j] = vc->eccBlock[j][2048*cache_idx+i];
#if 0 //FIXME remove this
if((ecc_block==3 || ecc_block==89) && (i==7 || i== 109))
{ data[129]++;
printf("seeded error\n");
}
#endif
result = TestErrorSyndromes(vc->rt, data);
if(result)
{ ecc_bad_sub++;
if(!bad_counted)
{ bad_counted++;
ecc_bad++;
}
}
}
cache_idx++;
if(!bad_counted) ecc_good++;
/* Advance percentage gauge */
percent = (100*(ecc_block+1))/lay->sectorsPerLayer;
if(percent != last_percent)
{ last_percent = percent;
if(!ecc_bad)
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(vc->wl->cmpEccSyndromes),
_("%d%% tested"),
percent);
PrintProgress(_("- Ecc block test : %d%% tested"), percent);
}
else
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(vc->wl->cmpEccSyndromes),
_("<span %s>%lld good, %lld bad; %d%% tested</span>"),
Closure->redMarkup, ecc_good, ecc_bad, percent);
PrintProgress(_("* Ecc block test : %lld good, %lld bad; %d%% tested")
, ecc_good, ecc_bad, percent);
}
}
}
/* Tell user about our findings */
if(!ecc_bad)
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(vc->wl->cmpEccSyndromes),_("pass"));
ClearProgress();
PrintLog(_("- Ecc block test : pass\n"));
}
else
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(vc->wl->cmpEccSyndromes),
_("<span %s>%lld good, %lld bad; %lld bad sub blocks</span>"),
Closure->redMarkup, ecc_good, ecc_bad, ecc_bad_sub);
PrintLog(_("* Ecc block test : %lld good, %lld bad; %lld bad sub blocks\n"),
ecc_good, ecc_bad, ecc_bad_sub);
exitCode = EXIT_CODE_SYNDROME_ERROR;
}
return ecc_bad;
}
/***
*** The verify action
***/
void RS03Verify(Method *self)
{ verify_closure *vc = g_malloc0(sizeof(verify_closure));
RS03Widgets *wl = self->widgetList;
LargeFile *image,*eccfile;
EccHeader *eh;
RS03Layout *lay;
struct MD5Context image_md5;
unsigned char medium_sum[16];
char data_digest[33], hdr_digest[33];
gint64 s, image_sectors, eccfile_sectors, crc_idx;
int last_percent = 0;
unsigned char buf[2048];
gint64 first_missing, last_missing;
gint64 total_missing,data_missing,crc_missing,ecc_missing;
gint64 new_missing = 0, new_crc_errors = 0;
gint64 data_crc_errors,crc_sig_errors;
gint64 expected_sectors,virtual_expected;
gint64 expected_image_sectors, expected_eccfile_sectors;
int major,minor,pl;
char method[5];
char *img_advice = NULL;
char *ecc_advice = NULL;
char *version;
int syn_error = 0;
int try_it;
/*** Prepare for early termination */
RegisterCleanup(_("Check aborted"), cleanup, vc);
vc->wl = wl;
vc->eh = eh = self->lastEh; /* will always be present */
/*** Open the .iso file */
LargeStat(Closure->imageName, &image_sectors);
image_sectors /= 2048;
image = vc->imgFile = LargeOpen(Closure->imageName, O_RDONLY, IMG_PERMS);
if(!image) /* Failing here is unlikely since caller could open it */
Stop("Could not open %s: %s",Closure->imageName, strerror(errno));
PrintLog(_("\n%s present.\n"), Closure->imageName);
/*** Optionally open the ecc file, announce what we are going to do */
LargeStat(Closure->eccName, &eccfile_sectors);
eccfile_sectors /= 2048;
if(eh->methodFlags[0] & MFLAG_ECC_FILE)
{
eccfile = vc->eccFile = LargeOpen(Closure->eccName, O_RDONLY, IMG_PERMS);
if(!eccfile) /* Failing here is unlikely since caller could open it */
Stop("Could not open %s: %s",Closure->eccName, strerror(errno));
if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpHeadline), "<big>%s</big>\n<i>%s</i>",
_("Checking the image and error correction files."),
_("- Checking image file -"));
PrintLog(_("%s present.\n"), Closure->eccName);
}
else
{
eccfile = image;
if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpHeadline), "<big>%s</big>\n<i>%s</i>",
_("Checking the image file."),
_("- Checking image file -"));
}
/*** Calculate the layout */
if(eh->methodFlags[0] & MFLAG_ECC_FILE)
lay = vc->lay = CalcRS03Layout(uchar_to_gint64(eh->sectors), eh, ECC_FILE);
else lay = vc->lay = CalcRS03Layout(uchar_to_gint64(eh->sectors), eh, ECC_IMAGE);
/*** Print information on the ecc portion */
PrintLog(_("\nError correction properties:\n"));
/* Check size of error correction file */
expected_eccfile_sectors = 2 + (lay->nroots+1)*lay->sectorsPerLayer;
if(lay->target == ECC_FILE && expected_eccfile_sectors != eccfile_sectors)
{ char *msg;
if(expected_eccfile_sectors > eccfile_sectors)
msg = g_strdup_printf(_("Ecc file is %lld sectors shorter than expected."),
expected_eccfile_sectors - eccfile_sectors);
else msg = g_strdup_printf(_("Ecc file is %lld sectors longer than expected."),
eccfile_sectors - expected_eccfile_sectors);
if(Closure->guiMode)
ecc_advice = g_strdup_printf("<span %s>%s</span>", Closure->redMarkup, msg);
PrintLog(_("* Warning : %s\n"), msg);
g_free(msg);
exitCode = EXIT_CODE_SIZE_MISMATCH;
}
/* Error correction type */
if(eh->methodFlags[0] & MFLAG_ECC_FILE)
PrintLog(_("- type : Error correction file\n"));
else PrintLog(_("- type : Augmented image\n"));
if(Closure->guiMode)
{ if(eh->methodFlags[0] & MFLAG_ECC_FILE)
SetLabelText(GTK_LABEL(wl->cmpEccType), _("Error correction file"));
else SetLabelText(GTK_LABEL(wl->cmpEccType), _("Augmented image"));
}
/* Error correction method */
memcpy(method, eh->method, 4); method[4] = 0;
PrintLog(_("- method : %4s, %d roots, %4.1f%% redundancy.\n"),
method, eh->eccBytes,
((double)eh->eccBytes*100.0)/(double)eh->dataBytes);
if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpEccMethod), _("%4s, %d roots, %4.1f%% redundancy"),
method, eh->eccBytes,
((double)eh->eccBytes*100.0)/(double)eh->dataBytes);
/* Creator version */
major = eh->creatorVersion/10000;
minor = (eh->creatorVersion%10000)/100;
pl = eh->creatorVersion%100;
if(eh->creatorVersion%100)
{ char *format, *color_format = NULL;
if(eh->methodFlags[3] & MFLAG_DEVEL)
{ format = "%s-%d.%d (devel-%d)";
color_format = "%s-%d.%d <span %s>(devel-%d)</span>";
}
else if(eh->methodFlags[3] & MFLAG_RC)
{ format = "%s-%d.%d (rc-%d)";
color_format = "%s-%d.%d <span %s>(rc-%d)</span>";
}
else format = "%s-%d.%d (pl%d)";
PrintLog(format, _("- created by : dvdisaster"), major, minor, pl);
PrintLog("\n");
if(!color_format) color_format = format;
if(Closure->guiMode)
{ if(!color_format)
SetLabelText(GTK_LABEL(wl->cmpEccCreatedBy), color_format,
"dvdisaster", major, minor, Closure->redMarkup, pl);
else SetLabelText(GTK_LABEL(wl->cmpEccCreatedBy), format,
"dvdisaster", major, minor, pl);
}
}
else
{ PrintLog(_("- created by : dvdisaster-%d.%d\n"),
major, minor);
if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpEccCreatedBy), "dvdisaster-%d.%d", major, minor);
}
/* Required dvdisaster version */
if(eh->neededVersion%100)
version = g_strdup_printf("%d.%d (pl%d)",
eh->neededVersion/10000,
(eh->neededVersion%10000)/100,
eh->neededVersion%100);
else version = g_strdup_printf("%d.%d",
eh->neededVersion/10000,
(eh->neededVersion%10000)/100);
if(!VerifyVersion(eh, 0))
{ PrintLog(_("- requires : dvdisaster-%s\n"), version);
if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpEccRequires), "dvdisaster-%s", version);
}
else
{ PrintLog(_("* requires : dvdisaster-%s (BAD)\n"
"* Warning : The following output might be incorrect.\n"
"* : Please visit http://www.dvdisaster.com for an upgrade.\n"),
version);
if(Closure->guiMode)
{ SetLabelText(GTK_LABEL(wl->cmpEccRequires),
"<span %s>dvdisaster-%s</span>",
Closure->redMarkup, version);
if(!ecc_advice)
ecc_advice = g_strdup_printf(_("<span %s>Please upgrade your version of dvdisaster!</span>"), Closure->redMarkup);
}
exitCode = EXIT_CODE_VERSION_MISMATCH;
}
g_free(version);
/* image md5sum as stored in the ecc header */
if(eh->methodFlags[0] & MFLAG_DATA_MD5)
AsciiDigest(hdr_digest, eh->mediumSum);
else strcpy(hdr_digest, _("none available"));
PrintLog(_("- data md5sum : %s\n"),hdr_digest);
if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpEccDataCrcVal), "%s", hdr_digest);
/* print advice collected from above tests */
if(Closure->guiMode)
{ if(ecc_advice)
{ SetLabelText(GTK_LABEL(wl->cmpEccResult), ecc_advice);
g_free(ecc_advice);
}
}
/*** Print information on image size */
PrintLog(_("\nData integrity:\n"));
/* Provide enough bitmap space for all layers */
vc->map = CreateBitmap0(GF_FIELDMAX*lay->sectorsPerLayer);
/* Expected and real sectors */
if(lay->target == ECC_FILE)
{ expected_sectors = lay->dataSectors + lay->totalSectors; /* image + ecc file */
virtual_expected = GF_FIELDMAX*lay->sectorsPerLayer; /* for prognosis map */
expected_image_sectors = lay->dataSectors; /* just the expected image size */
}
else
{ virtual_expected = expected_sectors = expected_image_sectors = lay->totalSectors;
SetBit(vc->map, lay->eccHeaderPos);
SetBit(vc->map, lay->eccHeaderPos+1);
}
if(expected_image_sectors == image_sectors)
{ if(lay->target == ECC_FILE)
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpImageSectors), _("%lld in image; %lld in ecc file"),
image_sectors, eccfile_sectors);
PrintLog(_("- sectors : %lld in image; %lld in ecc file\n"),
image_sectors, eccfile_sectors);
}
else
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpImageSectors), _("%lld total / %lld data"),
image_sectors, lay->dataSectors);
PrintLog(_("- medium sectors : %lld total / %lld data\n"),
image_sectors, lay->dataSectors);
}
}
else
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpImageSectors), _("<span %s>%lld (%lld expected)</span>"),
Closure->redMarkup, image_sectors, expected_image_sectors);
if(expected_image_sectors > image_sectors)
img_advice = g_strdup_printf(_("<span %s>Image file is %lld sectors shorter than expected.</span>"), Closure->redMarkup, expected_image_sectors - image_sectors);
else img_advice = g_strdup_printf(_("<span %s>Image file is %lld sectors longer than expected.</span>"), Closure->redMarkup, image_sectors - expected_image_sectors);
}
if(Closure->quickVerify)
{ PrintLog(_("* quick mode : image NOT scanned\n"));
goto terminate;
}
/*** Read the CRC portion */
crc_sig_errors = 0;
read_crc(vc, lay, &crc_sig_errors);
/*** Check the data portion of the image file for the
"dead sector marker" and CRC errors */
if(!LargeSeek(image, 0))
Stop(_("Failed seeking to start of image: %s\n"), strerror(errno));
if(lay->target == ECC_FILE)
if(!LargeSeek(eccfile, 4096)) /* skip the header */
Stop(_("Failed seeking to start of ecc file: %s\n"), strerror(errno));
MD5Init(&image_md5);
first_missing = last_missing = -1;
total_missing = data_missing = crc_missing = ecc_missing = 0;
data_crc_errors = 0;
crc_idx = 0;
for(s=0; s<virtual_expected; s++)
{ int percent,current_missing;
int defective = 0;
/* Check for user interruption */
if(Closure->stopActions)
{ SetLabelText(GTK_LABEL(wl->cmpImageResult),
_("<span %s>Aborted by user request!</span>"),
Closure->redMarkup);
goto terminate;
}
/* Read the next sector */
if(lay->target == ECC_IMAGE || s<lay->dataSectors)
{ /* Read from image file */
if(s < image_sectors) /* image may be truncated */
{ int n = LargeRead(image, buf, 2048);
if(n != 2048)
{ exitCode = EXIT_CODE_UNEXPECTED_EOF;
Stop(_("premature end in image (only %d bytes): %s\n"),n,strerror(errno));
}
}
else CreateMissingSector(buf, s, eh->mediumFP, eh->fpSector, "padding beyond the image");
}
else
{ /* Simulate the non-existent padding area in ecc files */
if(s >= lay->dataSectors && s<(lay->ndata-1)*lay->sectorsPerLayer)
{ memset(buf, 0, 2048);
}
/* Read from ecc file */
else if(s < (lay->ndata-1)*lay->sectorsPerLayer+eccfile_sectors-2)
{ int n = LargeRead(eccfile, buf, 2048);
if(n != 2048)
{ exitCode = EXIT_CODE_UNEXPECTED_EOF;
Stop(_("premature end in ecc file (only %d bytes): %s\n"),n,strerror(errno));
}
}
else /* ecc file is truncated */
{ CreateMissingSector(buf, s, eh->mediumFP, eh->fpSector, "padding beyond the image");
}
}
if(s < lay->dataSectors)
{ if(s < lay->dataSectors - 1)
MD5Update(&image_md5, buf, 2048);
else MD5Update(&image_md5, buf, eh->inLast);
}
/* Look for the dead sector marker */
current_missing = CheckForMissingSector(buf, s, eh->mediumFP, eh->fpSector);
if(current_missing != SECTOR_PRESENT)
ExplainMissingSector(buf, s, current_missing, TRUE);
if(current_missing)
{
if(first_missing < 0) first_missing = s;
last_missing = s;
total_missing++;
new_missing++;
if(lay->target == ECC_IMAGE)
{ if(s < lay->firstCrcPos) data_missing++;
else if(s >= lay->firstCrcPos && s < lay->firstEccPos) crc_missing++;
else ecc_missing++;
}
else /* ecc file case */
{ if(s < lay->dataSectors) data_missing++;
else if(s < lay->ndata*lay->sectorsPerLayer) crc_missing++;
else ecc_missing++;
}
defective = TRUE;
exitCode = EXIT_CODE_MISSING_SECTOR;
}
/* Report dead sectors. Combine subsequent missing sectors into one report. */
if(!current_missing || s==virtual_expected-1)
{ if(first_missing>=0)
{ gint64 first, last;
char *ecc_msg;
if(lay->target == ECC_FILE && last_missing >= (lay->ndata-1)*lay->sectorsPerLayer)
{ first = first_missing - (lay->ndata-1)*lay->sectorsPerLayer + 2;
last = last_missing - (lay->ndata-1)*lay->sectorsPerLayer + 2;
ecc_msg = g_strdup(_(" (in ecc file)"));
}
else
{ first = first_missing;
last = last_missing;
ecc_msg = g_strdup(" ");
}
if(first_missing == last_missing)
PrintCLI(_("* missing sector : %lld%s\n"), first,ecc_msg);
else PrintCLI(_("* missing sectors : %lld - %lld%s\n"), first, last, ecc_msg);
first_missing = -1;
g_free(ecc_msg);
}
}
/* If the image sector is from the data portion and it was readable,
test its CRC sum */
if( !current_missing
&& ( (lay->target == ECC_IMAGE && s < lay->firstCrcPos)
|| (lay->target == ECC_FILE && s < lay->dataSectors)))
{ guint32 crc = Crc32(buf, 2048);
if(vc->crcValid[crc_idx] && crc != vc->crcBuf[crc_idx])
{ PrintCLI(_("* CRC error, sector: %lld\n"), s);
data_crc_errors++;
new_crc_errors++;
defective = TRUE;
exitCode = EXIT_CODE_CHECKSUM_ERROR;
}
}
crc_idx++;
if(!defective)
SetBit(vc->map, s);
if(Closure->guiMode)
{ /* data part / spiral animation */
percent = (VERIFY_IMAGE_SEGMENTS*(s+1))/virtual_expected;
/* percentage is reset / output differently for ecc file part */
if(lay->target == ECC_FILE && s >= lay->dataSectors)
percent = (100*(s+1-lay->dataSectors)/(virtual_expected-lay->dataSectors));
}
else percent = (100*(s+1))/virtual_expected;
if(last_percent != percent) /* Update sector results */
{ PrintProgress(_("- testing sectors : %3d%%") ,percent);
if(Closure->guiMode)
{ if(lay->target == ECC_IMAGE)
{ add_verify_values(self, percent, new_missing, new_crc_errors);
}
else /* do not include ecc file sectors in the spiral! */
{ if(s<lay->dataSectors)
{ int image_percent = (VERIFY_IMAGE_SEGMENTS*(s+1))/lay->dataSectors;
add_verify_values(self, image_percent, new_missing, new_crc_errors);
}
else
{ SetLabelText(GTK_LABEL(wl->cmpEccSyndromes),"%d%% tested",percent);
}
}
if(data_missing || data_crc_errors)
SetLabelText(GTK_LABEL(wl->cmpDataSection),
_("<span %s>%lld sectors missing; %lld CRC errors</span>"),
Closure->redMarkup, data_missing, data_crc_errors);
if(crc_missing || crc_sig_errors)
SetLabelText(GTK_LABEL(wl->cmpCrcSection),
_("<span %s>%lld sectors missing; %lld signature errors</span>"),
Closure->redMarkup, crc_missing, crc_sig_errors);
if(ecc_missing)
SetLabelText(GTK_LABEL(wl->cmpEccSection),
_("<span %s>%lld sectors missing</span>"),
Closure->redMarkup, ecc_missing);
}
last_percent = percent;
new_missing = new_crc_errors = 0;
}
/* If we have processed the image and are about to switch over
to the ecc file, do some bookkeeping. */
if(lay->target == ECC_FILE && s == lay->dataSectors-1)
{
if(Closure->guiMode)
{ /* flush/complete spiral */
add_verify_values(self, VERIFY_IMAGE_SEGMENTS, new_missing, new_crc_errors);
SetLabelText(GTK_LABEL(wl->cmpHeadline), "<big>%s</big>\n<i>%s</i>",
_("Checking the image and error correction files."),
_("- Checking ecc file -"));
SetLabelText(GTK_LABEL(wl->cmpEccSynLabel), _("Error correction file:"));
last_percent = 0; /* restart counting for ecc file */
}
}
}
/* Complete damage summary */
if(Closure->guiMode)
{ if(data_missing || data_crc_errors)
SetLabelText(GTK_LABEL(wl->cmpDataSection),
_("<span %s>%lld sectors missing; %lld CRC errors</span>"),
Closure->redMarkup, data_missing, data_crc_errors);
if(crc_missing || crc_sig_errors)
SetLabelText(GTK_LABEL(wl->cmpCrcSection),
_("<span %s>%lld sectors missing; %lld signature errors</span>"),
Closure->redMarkup, crc_missing, crc_sig_errors);
if(ecc_missing)
SetLabelText(GTK_LABEL(wl->cmpEccSection),
_("<span %s>%lld sectors missing</span>"),
Closure->redMarkup, ecc_missing);
}
/* The image md5sum is only useful if all blocks have been successfully read. */
MD5Final(medium_sum, &image_md5);
AsciiDigest(data_digest, medium_sum);
/* Do a resume of our findings */
if(!total_missing && !data_crc_errors)
PrintLog(_("- good image/file : all sectors present\n"
"- data md5sum : %s\n"),data_digest);
else
{ if(!data_crc_errors)
PrintLog(_("* BAD image/file : %lld sectors missing\n"), total_missing);
if(!total_missing)
PrintLog(_("* suspicious image : all sectors present, but %lld CRC errors\n"),
data_crc_errors);
if(total_missing && data_crc_errors)
PrintLog(_("* BAD image : %lld sectors missing, %lld CRC errors\n"),
total_missing, data_crc_errors);
PrintLog(_(" ... data section : %lld sectors missing; %lld CRC errors\n"),
data_missing, data_crc_errors);
if(!total_missing && !data_crc_errors && !crc_sig_errors)
PrintLog(_(" ... data md5sum : %s\n"), data_digest);
PrintLog(_(" ... crc section : %lld sectors missing\n"), crc_missing);
PrintLog(_(" ... ecc section : %lld sectors missing\n"), ecc_missing);
}
if(Closure->guiMode)
{ if(!data_missing && !data_crc_errors)
SetLabelText(GTK_LABEL(wl->cmpDataSection), _("complete"));
if(!crc_missing && !crc_sig_errors)
SetLabelText(GTK_LABEL(wl->cmpCrcSection), _("complete"));
if(!ecc_missing) SetLabelText(GTK_LABEL(wl->cmpEccSection), _("complete"));
SetLabelText(GTK_LABEL(wl->cmpImageMd5Sum), "%s", data_missing ? "-" : data_digest);
}
/*** Test error syndromes */
if(Closure->guiMode)
{ SetLabelText(GTK_LABEL(wl->cmpEccSynLabel), _("Ecc block test:"));
SetLabelText(GTK_LABEL(wl->cmpEccSyndromes), "");
}
if(0&&total_missing + data_crc_errors != 0)
{ if(Closure->guiMode)
SetLabelText(GTK_LABEL(wl->cmpEccSyndromes),
_("<span %s>Skipped; not useful on known defective image</span>"),
Closure->redMarkup);
PrintLog(_("* Ecc block test : skipped; not useful on defective image\n"));
}
else syn_error = check_syndromes(vc);
/*** Print image advice */
if(Closure->guiMode)
{
if(img_advice)
{ SetLabelText(GTK_LABEL(wl->cmpImageResult), img_advice);
g_free(img_advice);
}
else
{ if(!total_missing && !data_crc_errors && !syn_error)
SetLabelText(GTK_LABEL(wl->cmpImageErasure), /* avoid two blank lines */
_("<span %s>Good image.</span>"),
Closure->greenMarkup);
else
SetLabelText(GTK_LABEL(wl->cmpImageResult),
_("<span %s>Damaged image.</span>"),
Closure->redMarkup);
}
}
/*** Print final results */
try_it = prognosis(vc, total_missing+data_crc_errors, expected_sectors);
if(Closure->guiMode)
{ if(total_missing || data_crc_errors)
{ if(try_it) SetLabelText(GTK_LABEL(wl->cmpImageResult),
_("<span %s>Full data recovery is likely.</span>"),
Closure->greenMarkup);
else SetLabelText(GTK_LABEL(wl->cmpImageResult),
_("<span %s>Full data recovery is NOT possible.</span>"),
Closure->redMarkup);
}
}
/*** Close and clean up */
terminate:
cleanup((gpointer)vc);
}
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