direct/timothy_tests/linux_tests/linux_test.c

   1 /*
   2  * YAFFS: Yet another FFS. A NAND-flash specific file system.
   3  *
   4  * Copyright (C) 2002-2010 Aleph One Ltd.
   5  *   for Toby Churchill Ltd and Brightstar Engineering
   6  *
   7  * Created by Timothy Manning <timothy@yaffs.net>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include "linux_test.h"
  15
  16 int random_seed;
  17 int simulate_power_failure = 1;
  18
  19 char message[400];      //this is used for storing print messages.
  20
  21
  22
  23 const struct option long_options[]={
  24         {"help",        0,NULL,'h'},
  25
  26
  27         {"print_level", 1,NULL,'p'},
  28         {"quiet",       0,NULL,'q'},
  29
  30         {"seed",        1,NULL,'s'},
  31
  32         {"verbose",     0,NULL,'v'}
  33 };
  34
  35 const char short_options[]="hp:qs:v";
  36
  37
  38 void init(int argc, char *argv[])
  39 {
  40         char dir[200];
  41         dir[0]='\0';
  42         int x=-1;
  43         char message[100];
  44         int new_option;
  45
  46         x=(unsigned)time(NULL);
  47         sprintf(message,"seeding srand with: %d\n",x);
  48         print_message(2,message);
  49         srand(x);
  50
  51
  52
  53         do {
  54                 new_option=getopt_long(argc,argv,short_options,long_options,NULL);
  55                 if (new_option=='h'){
  56                         printf("mirror_tests help\n");
  57                         printf("arguments:\n");
  58                         printf("\t-p [NUMBER] //sets the print level for mirror_tests.\n");
  59                         printf("\t-v //verbose mode everything is printed\n");
  60                         printf("\t-q //quiet mode nothing is printed.\n");
  61                         printf("\t-s [number] //seeds rand with the number\n");
  62
  63                         exit(0);
  64
  65                 } else if (new_option=='p'){
  66                         set_print_level(atoi(optarg));
  67                 } else if (new_option=='v'){
  68                         set_print_level(5);
  69                 } else if (new_option=='q'){
  70                         set_print_level(-1);
  71                 } else if (new_option=='s'){
  72                         srand(atoi(argv[x+1]));
  73
  74                 } else if (new_option==-1){
  75
  76                 } else if (new_option=='?') {
  77                         printf("bad argument\n");
  78                         exit(0);
  79                 }
  80         }while(new_option!=-1);
  81 }
  82
  83 int main(int argc, char *argv[])
  84 {
  85         dir_struct *scanned_dir=NULL;
  86         int output=0;
  87         int break_bool=0;
  88         int x=5;
  89
  90         init(argc,argv);
  91         while( 1){
  92                 while (break_bool!=1){
  93                         //printf("x %d\n",x);
  94                         x--;
  95                         if (x<0 &&(break_bool!=1)){
  96                                 output=mkdir_test();
  97                                 break_bool=1;
  98                         }
  99                         x--;
 100                         if (x<0 &&(break_bool!=1)){
 101                                 output=rmdir_test();
 102                                 break_bool=1;
 103                         }
 104                         x--;
 105                         if (x<0 &&(break_bool!=1)){
 106                                 output=mknod_test();
 107                                 break_bool=1;
 108                         }
 109                         x--;
 110                         if (x<0 &&(break_bool!=1)){
 111                                 output=symlink_test();
 112                                 break_bool=1;
 113                         }
 114                         x--;
 115                         if (x<0 &&(break_bool!=1)){
 116                                 output=link_test();
 117                                 break_bool=1;
 118                         }
 119                         x--;
 120                         if (x<0 &&(break_bool!=1)){
 121                                 output=rename_test();
 122                                 break_bool=1;
 123                         }
 124                         x--;
 125                         if (x<0 &&(break_bool!=1)){
 126                                 scanned_dir=scan_dir();
 127
 128                                 output=remount_test();
 129                                 check_dir(scanned_dir);
 130                                 scanned_dir=NULL;       //the scanned dir has been freed in check_dir.
 131                                 break_bool=1;
 132                         }
 133                 }
 134                 //printf("resetting x\n");
 135                 check_function(output);
 136                 break_bool=0;
 137                 x=(rand()% 99);
 138         }
 139         return 0;
 140 }
 141
 142 dir_struct * scan_dir(void)
 143 {
 144         struct dirent *dir_data;
 145         dir_struct *dir=NULL;
 146         dir=malloc(sizeof(dir_struct));
 147         memset(dir, 0, sizeof(dir_struct));
 148         DIR *open_dir=NULL;
 149
 150
 151         open_dir=opendir(ROOT_PATH);
 152         dir_data=readdir(open_dir);
 153         while(dir_data){
 154                 dir->path_list=linked_list_add_node(HEAD,dir->path_list);
 155                 dir->path_list->string=malloc(strlen(dir_data->d_name)+1);
 156                 strcpy(dir->path_list->string,dir_data->d_name);
 157                 sprintf(message,"opened file: %s\n",dir->path_list->string);
 158                 print_message(5,message);
 159                 dir_data=readdir(open_dir);
 160         }
 161         closedir(open_dir);
 162         //node_print_pointers(dir->path_list);
 163         return dir;
 164 }
 165
 166 int check_dir(dir_struct *old_dir)
 167 {
 168         print_message(3,"scanning new dir\n");
 169         dir_struct *new_dir=scan_dir();
 170         node *new_list=new_dir->path_list;
 171         node *old_list=old_dir->path_list;
 172         int exit_loop=0,error=0;
 173         print_message(3,"checking dir\n");
 174         for (;old_list!= NULL;old_list=old_list->next){
 175                 //sprintf(message,"new_list=!NULL= %d, exit_loop !=1 = %d\n",(new_list!=NULL),(exit_loop !=1));
 176                 //print_message(3,message);
 177                 for (;(new_list!=NULL) && (exit_loop !=1);new_list=new_list->next){
 178                         //sprintf(message,"comparing %s  and %s\n",old_list->string,new_list->string);
 179                         //print_message(3,message);
 180                         if (strcmp( new_list->string ,old_list->string)==0){
 181                                 //files match -now compare the modes and contents of the files.
 182                                 //and set the paths to NULL.
 183                                 exit_loop=1;
 184                         }
 185                         /*if (new_list->next==NULL){
 186                                 print_message(3,"next is null\n");
 187
 188                         }*/
 189                 }
 190                 if (exit_loop !=1){
 191                         //failed to find a matching file
 192                         sprintf(message,"a file has disappeared: %s\n",old_list->string);
 193                         print_message(3,message);
 194                         error=1;
 195
 196                 }
 197                 new_list=new_dir->path_list;
 198                 exit_loop=0;
 199         }
 200         //now check if there are any old unmatched files
 201
 202         //free both data structs
 203         delete_linked_list(old_dir->path_list);
 204         delete_linked_list(new_dir->path_list);
 205         new_dir->path_list=NULL;
 206         old_dir->path_list=NULL;
 207         free(old_dir);
 208         free(new_dir);
 209         if (error ==1){
 210                 print_message(3,"checking dir failed\n");
 211                 if (get_exit_on_error()==1){
 212                         print_message(3,"exiting_program\n");
 213                         exit(0);
 214                 }
 215         }
 216
 217         else if (error !=1){
 218                 print_message(3,"checking dir passed\n");
 219         }
 220         return error;
 221 }
 222
 223 int remount_test(void)
 224 {
 225         int output;
 226         print_message(3,"\nunmounting\n");
 227         output=umount2("/mnt/y",1);
 228         check_function(output);
 229         print_message(3,"mounting\n");
 230         mount("/dev/mtdblock0","/mnt/y","yaffs2",0,NULL);
 231         check_function(output);
 232         return output;
 233 }
 234
 235 int mkdir_test(void)
 236 {
 237
 238         char string[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 239         int mode=0,output=0;
 240         strcpy(string,ROOT_PATH);
 241         strcat(string,generate_random_string(FILE_NAME_LENGTH));
 242         mode = ((S_IREAD|S_IWRITE)&random_int());
 243         sprintf(message,"\nmaking directory: %s, with mode %d\n",string,mode);
 244         print_message(3,message);
 245         output= mkdir(string,mode);
 246         return output;
 247 }
 248
 249 int rmdir_test(void)
 250 {
 251         char string[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 252         int output=0;
 253         strcpy(string,ROOT_PATH);
 254         strcat(string,generate_random_string(FILE_NAME_LENGTH));
 255
 256         sprintf(message,"\nremoving directory: %s\n",string);
 257         print_message(3,message);
 258         output= rmdir(string);
 259         return output;
 260 }
 261 int symlink_test(void)
 262 {
 263         char string[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 264         char string2[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 265         int output;
 266         strcpy(string,ROOT_PATH);
 267         strcat(string,generate_random_string(FILE_NAME_LENGTH));
 268         strcpy(string2,ROOT_PATH);
 269         strcat(string2,generate_random_string(FILE_NAME_LENGTH));
 270         sprintf(message,"\nsymlink from: %s, to %s\n",string,string2);
 271         print_message(3,message);
 272         output= symlink(string,string2);
 273         return output;
 274 }
 275 int rename_test(void)
 276 {
 277         char string[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 278         char string2[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 279         int output;
 280         strcpy(string,ROOT_PATH);
 281         strcat(string,generate_random_string(FILE_NAME_LENGTH));
 282         strcpy(string2,ROOT_PATH);
 283         strcat(string2,generate_random_string(FILE_NAME_LENGTH));
 284         sprintf(message,"\nrenaming from: %s, to %s\n",string,string2);
 285         print_message(3,message);
 286         output= rename(string,string2);
 287         return output;
 288 }
 289 int link_test(void)
 290 {
 291         char string[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 292         char string2[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 293         int output=0;
 294         strcpy(string,ROOT_PATH);
 295         strcat(string,generate_random_string(FILE_NAME_LENGTH));
 296         strcpy(string2,ROOT_PATH);
 297         strcat(string2,generate_random_string(FILE_NAME_LENGTH));
 298         sprintf(message,"\nlink from: %s, to %s\n",string,string2);
 299         print_message(3,message);
 300         output= link(string,string2);
 301         return output;
 302 }
 303 int mknod_test(void)
 304 {
 305         char string[FILE_NAME_LENGTH+strlen(ROOT_PATH)];
 306         int mode=0,dev=0,output=0;
 307         strcpy(string,ROOT_PATH);
 308         strcat(string,generate_random_string(FILE_NAME_LENGTH));
 309         mode = ((S_IREAD|S_IWRITE)&random_int());
 310         dev = random_int();
 311         sprintf(message,"\nmaking node: %s, with mode %d, dev %d\n",string,mode,dev);
 312         print_message(3,message);
 313         output= mknod(string,mode,dev);
 314         return output;
 315 }