+++ /dev/null
-/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2011 Aleph One Ltd.
- * for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include "nor_stress.h"
-
-
-#include "yaffsfs.h"
-#include "yaffs_fsx.h"
-
-#include <stdio.h>
-
-
-extern int fuzz_test;
-
-#if 1
-#define FSX_INIT(mount_pt) do{ if(interleave_fsx) yaffs_fsx_init(mount_pt); } while(0)
-#define FSX_COMPLETE() do { if(interleave_fsx) yaffs_fsx_complete(); } while (0)
-
-#define FSX() \
-do { \
- if((myrand() & 0x1) == 0){\
- if(interleave_fsx) \
- yaffs_fsx_do_op(); \
- } \
-} while(0)
-
-#else
-#define FSX_INIT(mount_point) do { } while(0)
-#define FSX_COMPLETE() do { } while(0)
-#define FSX() do { } while(0)
-#endif
-
-
-void (*ext_fatal)(void) = NULL;
-
-static unsigned powerUps;
-static unsigned cycleStarts;
-static unsigned cycleEnds;
-
-static int interleave_fsx;
-
-static int no_verification;
-
-char fullPathName[100];
-char fullPowerUpName[100];
-char fullStartName[100];
-char fullEndName[100];
-char fullMainName[100];
-char fullTempMainName[100];
-char fullTempCounterName[100];
-
-
-extern int random_seed;
-
-int myrand(void) {
- random_seed = random_seed * 1103515245 + 12345;
- return((unsigned)(random_seed/65536) % 32768);
-}
-
-void MakeName(char *fullName,const char *prefix, const char *name)
-{
- strcpy(fullName,prefix);
- strcat(fullName,"/");
- strcat(fullName,name);
-}
-
-
-void MakeFullNames(const char *prefix)
-{
- MakeName(fullPathName,prefix,"");
- MakeName(fullPowerUpName,prefix,"powerUps");
- MakeName(fullStartName,prefix,"starts");
- MakeName(fullEndName,prefix,"ends");
- MakeName(fullMainName,prefix,"main");
- MakeName(fullTempCounterName,prefix,"tmp-counter");
- MakeName(fullTempMainName,prefix,"tmp-main");
-}
-
-static void FatalError(int line_no)
-{
- printf("Integrity error %d\n",line_no);
-
- if(fuzz_test)
- return;
-
- if(ext_fatal)
- ext_fatal();
-
- while(1){
- sleep(1);
- }
-}
-void print_stat(const char *str, struct yaffs_stat *st)
-{
- printf("%s inode %d\n",str,st->st_ino);
-}
-
-static void UpdateCounter(const char *name, unsigned *val, int initialise)
-{
- int inh=-1;
- int outh=-1;
- unsigned x[2];
- int nread = 0;
- int nwritten = 0;
-
- x[0] = x[1] = 0;
-
- if(initialise){
- x[0] = 0;
- x[1] = 1;
- } else {
- inh = yaffs_open(name,O_RDONLY, S_IREAD | S_IWRITE);
- if(inh >= 0){
- nread = yaffs_read(inh,x,sizeof(x));
- yaffs_close(inh);
- }
-
- if(!no_verification &&
- (nread != sizeof(x) ||
- x[0] + 1 != x[1])){
- printf("Error reading counter %s handle %d, x[0] %u x[1] %u last error %d\n",
- name, inh, x[0], x[1],yaffsfs_GetLastError());
- FatalError(__LINE__);
-
- }
- x[0]++;
- x[1]++;
- }
-
- FSX();
- outh = yaffs_open(fullTempCounterName, O_RDWR | O_TRUNC | O_CREAT, S_IREAD | S_IWRITE);
-
- if(outh >= 0){
- struct yaffs_stat tmpstat, oldstat, tmpfstat;
- FSX();
- yaffs_fstat(outh,&tmpfstat);
- printf("\n\n\n*** Writing file %s inode %d\n",fullTempCounterName,tmpfstat.st_ino);
- nwritten = yaffs_write(outh,x,sizeof(x));
- FSX();
- yaffs_close(outh);
- FSX();
-
- printf("About to rename %s to %s\n",fullTempCounterName,name);
- yaffs_stat(fullTempCounterName,&tmpstat);
- yaffs_stat(name,&oldstat);
- print_stat("old stat",&oldstat);
- print_stat("new stat",&tmpstat);
- print_stat("new fstat",&tmpfstat);
- yaffs_rename(fullTempCounterName,name);
- FSX();
- }
-
- if(nwritten != sizeof(x)){
- printf("Error writing counter %s handle %d, x[0] %u x[1] %u\n",
- name, inh, x[0], x[1]);
- FatalError(__LINE__);
- }
-
- *val = x[0];
-
- printf("##\n"
- "## Set counter %s to %u\n"
- "##\n", name,x[0]);
-}
-
-
-static void dump_directory_tree_worker(const char *dname,int recursive)
-{
- yaffs_DIR *d;
- struct yaffs_dirent *de;
- struct yaffs_stat s;
- char str[1000];
- int error_line = 0;
- int nentries;
-
- d = yaffs_opendir(dname);
-
- if(!d)
- {
- printf("opendir failed\n");
- }
- else
- {
- nentries = 0;
- while((de = yaffs_readdir(d)) != NULL)
- {
- strcpy(str,dname);
- strcat(str,"/");
- strcat(str,de->d_name);
- nentries++;
-
- yaffs_lstat(str,&s);
-
- printf("%s inode %ld %d obj %x length %d mode %X ",str, de->d_ino, s.st_ino,de->d_dont_use,(int)s.st_size,s.st_mode);\
- if(de->d_ino != s.st_ino){
- printf(" \n\n!!!! HEY inode mismatch\n\n");
- error_line = __LINE__;
- }
-
- switch(s.st_mode & S_IFMT)
- {
- case S_IFREG: printf("data file"); break;
- case S_IFDIR: printf("directory"); break;
- case S_IFLNK: printf("symlink -->");
- if(yaffs_readlink(str,str,100) < 0)
- printf("no alias");
- else
- printf("\"%s\"",str);
- break;
- default: printf("unknown"); break;
- }
-
- printf("\n");
-
- if((s.st_mode & S_IFMT) == S_IFDIR && recursive)
- dump_directory_tree_worker(str,1);
-
- if(s.st_ino > 10000)
- error_line = __LINE__;
-
- }
-
- if(strstr(dname,"lost+found") && nentries >0){
- printf("\n\n!!! HEY lost+found not empty, had %d entries\n\n\n",nentries);
- error_line = __LINE__;
- }
-
- if(error_line && !no_verification)
- FatalError(error_line);
-
- yaffs_closedir(d);
- }
-
-}
-
-static void dump_directory_tree(const char *dname)
-{
- dump_directory_tree_worker(dname,1);
- printf("\n");
- printf("Free space in %s is %d\n\n",dname,(int)yaffs_freespace(dname));
-}
-
-
-
-
-#define XX_SIZE 500
-
-static unsigned xx[XX_SIZE];
-
-static int y_wr_file(const char *fname, unsigned sz32)
-{
- int h;
- int r;
- int i;
- struct yaffs_stat st;
- unsigned checksum = 0;
-
-
- FSX();
- h = yaffs_open(fname,O_RDWR | O_CREAT | O_TRUNC, S_IREAD | S_IWRITE);
- yaffs_fstat(h,&st);
- printf("\n\n\n**** Open writing file %s inode %d\n",fname, st.st_ino);
-
- FSX();
-
- if(h < 0){
- printf("could not open file %s\n",fname);
- return h;
- }
-
- xx[0] = sz32;
- checksum ^= xx[0];
-
- if((r = yaffs_write(h,xx,sizeof(unsigned))) != sizeof(unsigned)){
- goto WRITE_ERROR;
- }
- FSX();
- while(sz32> 0){
- for(i = 0; i < XX_SIZE; i++){
- xx[i] = sz32 + i;
- checksum ^= xx[i];
- }
-
- FSX();
- if((r = yaffs_write(h,xx,sizeof(xx))) != sizeof(xx)){
- goto WRITE_ERROR;
- }
- sz32--;
- }
-
- xx[0] = checksum;
- FSX();
- if((r = yaffs_write(h,xx,sizeof(unsigned))) != sizeof(unsigned)){
- goto WRITE_ERROR;
- }
-
- FSX();
- yaffs_close(h);
- printf("File closed\n");
- return 0;
-
-WRITE_ERROR:
- printf("ywrite error at position %d\n",(int)yaffs_lseek(h,0,SEEK_END));
- yaffs_close(h);
- return -1;
-
-}
-
-static int y_verify_file(const char *fName)
-{
- unsigned checksum = 0;
- unsigned totalSize;
- unsigned sz32;
- unsigned recordedSize = 0;
- int r;
- int h;
- int i;
- int retval = 0;
-
- if(no_verification)
- return 0;
-
- printf("Verifying file %s\n",fName);
-
- h = yaffs_open(fName, O_RDONLY,S_IREAD | S_IWRITE);
-
- if(h < 0){
- printf("could not open file %s\n",fName);
- return -1;
- }
-
- totalSize = yaffs_lseek(h,0,SEEK_END);
- yaffs_lseek(h,0,SEEK_SET);
-
- r = yaffs_read(h,&sz32,sizeof(sz32));
-
- if(r != sizeof(sz32)){
- printf("reading size failed ... returned %d\n",r);
- yaffs_close(h);
- return -1;
- }
-
- recordedSize = sz32 * sizeof(xx) + 8;
-
- printf("verify %s: file size is %d, recorded size is %d\n", fName, totalSize, recordedSize);
- if(totalSize != recordedSize){
- printf("!!!!!!!!!!!!!!!!!!!!!!!!file size is wrong, should be %d, is %d\n", recordedSize,totalSize);
- yaffs_close(h);
- return -1;
- }
-
- checksum ^= sz32;
-
-
- while(sz32 > 0){
- r = yaffs_read(h,xx,sizeof(xx));
- if(r != sizeof(xx)){
- printf("!!!!!!!!!!!!!!!!!!!!!!!!!!reading data failed ... returned %d\n",r);
- yaffs_close(h);
- return -1;
- }
- for(i = 0; i < XX_SIZE; i++)
- checksum ^= xx[i];
- sz32--;
- }
- r = yaffs_read(h,xx,sizeof(xx[0]));
- if(r != sizeof(xx[0])){
- printf("!!!!!!!!!!!!!!!!!!!!!!!!!!reading data failed ... returned %d\n",r);
- yaffs_close(h);
- return -1;
- }
-
- checksum ^= xx[0];
-
- if(checksum != 0){
- printf("!!!!!!!!!!!!!!!!!!!!! checksum failed\n");
- retval = -1;
- } else
- printf("verified ok\n");
- yaffs_close(h);
-
- return retval;
-}
-
-
-static void DoUpdateMainFile(void)
-{
- int result;
- int sz32;
- sz32 = (myrand() % 1000) + 20;
-
- result = y_wr_file(fullTempMainName,sz32);
- FSX();
- if(!no_verification && result)
- FatalError(__LINE__);
- printf("Raname file %s to %s\n",fullTempMainName,fullMainName);
- yaffs_rename(fullTempMainName,fullMainName);
- FSX();
-}
-
-static void DoVerifyMainFile(void)
-{
- int result;
- if(no_verification)
- return;
- result = y_verify_file(fullMainName);
- if(result)
- FatalError(__LINE__);
-
-}
-
-
-void NorStressTestInitialise(const char *prefix)
-{
- MakeFullNames(prefix);
-
- UpdateCounter(fullPowerUpName,&powerUps,1);
- UpdateCounter(fullStartName,&cycleStarts,1);
- UpdateCounter(fullEndName,&cycleEnds,1);
- UpdateCounter(fullPowerUpName,&powerUps,1);
- DoUpdateMainFile();
- DoVerifyMainFile();
-}
-
-
-void NorStressTestRun(const char *prefix, int n_cycles, int do_fsx, int skip_verification)
-{
-
- interleave_fsx = do_fsx;
- no_verification = skip_verification;
-
- MakeFullNames(prefix);
- dump_directory_tree(fullPathName);
- FSX_INIT(prefix);
-
- dump_directory_tree(fullPathName);
-
- UpdateCounter(fullPowerUpName,&powerUps,0);
- dump_directory_tree(fullPathName);
-
- while(n_cycles < 0 || n_cycles > 0){
- if(n_cycles > 0)
- n_cycles--;
- UpdateCounter(fullStartName, &cycleStarts,0);
- dump_directory_tree(fullPathName);
- DoVerifyMainFile();
- DoUpdateMainFile();
- dump_directory_tree(fullPathName);
-
- UpdateCounter(fullEndName,&cycleEnds,0);
- dump_directory_tree(fullPathName);
- }
- FSX_COMPLETE();
-}
projects / yaffs2.git / blobdiff