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fstester/setter/linux.c

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/****************************************************************************
The Disc Image Chef
-----------------------------------------------------------------------------
Filename : linux.c
Author(s) : Natalia Portillo
Component : fstester.setter
--[ Description ] -----------------------------------------------------------
Contains Linux implementations
--[ License ] ---------------------------------------------------------------
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 3 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 warraty of
MERCHANTIBILITY 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, see <http://www.gnu.org/licenses/>.
-----------------------------------------------------------------------------
Copyright (C) 2011-2020 Natalia Portillo
*****************************************************************************/
#if defined(__linux__) || defined(__LINUX__) || defined(__gnu_linux)
#include "consts.h"
#define _GNU_SOURCE
#include "linux.h"
#include <errno.h>
#include <fcntl.h>
#include <features.h>
#include <linux/fs.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#if((__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 3)) || (__GLIBC__ > 2)
#include <sys/ioctl.h>
#include <sys/xattr.h>
#endif
void LinuxExtendedAttributes(const char *path)
{
#if((__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 3)) || (__GLIBC__ > 2)
int ret;
FILE *file;
int rc;
int cRc;
ret = chdir(path);
if(ret)
{
printf("Error %d changing to specified path.\n", errno);
return;
}
ret = mkdir("XATTRS", 0755);
if(ret)
{
printf("Error %d creating working directory.\n", errno);
return;
}
ret = chdir("XATTRS");
if(ret)
{
printf("Error %d changing to working directory.\n", errno);
return;
}
printf("Creating files with extended attributes.\n");
rc = 0;
cRc = 0;
file = fopen("com.ibm.os2.comment", "w+");
if(file == NULL)
rc = errno;
else
{
fprintf(file, "This file has an extended attribute called \"com.ibm.os2.comment\" that is 72 bytes long.\n");
fclose(file);
ret = setxattr("com.ibm.os2.comment", "user.com.ibm.os2.comment", CommentsEA, 72, XATTR_CREATE);
if(ret) cRc = errno;
}
printf("\tFile with an extended attribute called \"com.ibm.os2.comment\", rc = %d, cRc = %d\n", rc, cRc);
rc = 0;
cRc = 0;
file = fopen("com.ibm.os2.icon", "w+");
if(file == NULL)
rc = errno;
else
{
fprintf(file, "This file has an extended attribute called \"com.ibm.os2.icon\" that is 3516 bytes long.\n");
fclose(file);
ret = setxattr("com.ibm.os2.icon", "user.com.ibm.os2.icon", IconEA, 3516, XATTR_CREATE);
if(ret) cRc = errno;
}
printf("\tFile with an extended attribute called \"com.ibm.os2.icon\", rc = %d, cRc = %d\n", rc, cRc);
#endif
}
void LinuxSparse(const char *path)
{
int ret;
int rc, wRc, cRc, zRc;
FILE * h;
unsigned char *buffer;
int i;
int fd;
ret = chdir(path);
if(ret)
{
printf("Error %d changing to specified path.\n", errno);
return;
}
ret = mkdir("SPARSE", 0755);
if(ret)
{
printf("Error %d creating working directory.\n", errno);
return;
}
ret = chdir("SPARSE");
if(ret)
{
printf("Error %d changing to working directory.\n", errno);
return;
}
printf("Creating sparse files.\n");
h = fopen("SMALL", "w+");
rc = 0;
wRc = 0;
cRc = 0;
zRc = 0;
if(h == NULL) { rc = errno; }
else
{
buffer = malloc(4096 * 3);
memset(buffer, 0, 4096 * 3);
for(i = 0; i < 4096 * 3; i += CLAUNIA_SIZE)
{
ret = fwrite(clauniaBytes, CLAUNIA_SIZE, 1, h);
if(ret < 0)
{
wRc = errno;
break;
}
}
fd = fileno(h);
ret = fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 4096, 8192);
if(ret) { zRc = errno; }
ret = fclose(h);
if(ret) { cRc = errno; }
free(buffer);
}
printf("\tFile name = \"%s\", size = %d, rc = %d, wRc = %d, cRc = %d, sRc = %d\n",
"SMALL",
4096 * 3,
rc,
wRc,
cRc,
zRc);
h = fopen("BIG", "w+");
rc = 0;
wRc = 0;
cRc = 0;
zRc = 0;
if(h == NULL) { rc = errno; }
else
{
buffer = malloc(4096 * 30);
memset(buffer, 0, 4096 * 30);
for(i = 0; i < 4096 * 30; i += CLAUNIA_SIZE)
{
ret = fwrite(clauniaBytes, CLAUNIA_SIZE, 1, h);
if(ret < 0)
{
wRc = errno;
break;
}
}
fd = fileno(h);
ret = fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 32768, 81920);
if(ret) { zRc = errno; }
ret = fclose(h);
if(ret) { cRc = errno; }
free(buffer);
}
printf("\tFile name = \"%s\", size = %d, rc = %d, wRc = %d, cRc = %d, sRc = %d\n",
"BIG",
4096 * 30,
rc,
wRc,
cRc,
zRc);
}
void LinuxFileAttributes(const char *path)
{
int ret;
int fd;
FILE *h;
int rc;
int wRc;
int sRc;
int cRc;
int attr;
ret = chdir(path);
if(ret)
{
printf("Error %d changing to specified path.\n", errno);
return;
}
ret = mkdir("ATTRS", 0755);
if(ret)
{
printf("Error %d creating working directory.\n", errno);
return;
}
ret = chdir("ATTRS");
if(ret)
{
printf("Error %d changing to working directory.\n", errno);
return;
}
printf("Creating files with different flags (attributes).\n");
h = fopen("APPEND", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_APPEND_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("APPEND");
}
else
{
ret = fprintf(h, "This file is now append only");
if(ret < 1)
{
wRc = errno;
unlink("APPEND");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with append only flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("COMPRESS", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_COMPR_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("COMPRESS");
}
else
{
ret = fprintf(h, "This file is now compressed");
if(ret < 1)
{
wRc = errno;
unlink("COMPRESS");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with compressed flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("IMMUTABLE", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_IMMUTABLE_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("IMMUTABLE");
}
else
{
ret = fprintf(h, "This file is now immutable");
if(ret < 1)
{
wRc = errno;
unlink("IMMUTABLE");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with immutable flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("JOURNALED", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_JOURNAL_DATA_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("JOURNALED");
}
else
{
ret = fprintf(h, "This file is now journaled");
if(ret < 1)
{
wRc = errno;
unlink("JOURNALED");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with journaled flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("NOATIME", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_NOATIME_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("NOATIME");
}
else
{
ret = fprintf(h, "This file is now noatime");
if(ret < 1)
{
wRc = errno;
unlink("NOATIME");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with noatime flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("NOCOW", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_NOCOW_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("NOCOW");
}
else
{
ret = fprintf(h, "This file is now not copy on write");
if(ret < 1)
{
wRc = errno;
unlink("NOCOW");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with no copy on write flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("NODUMP", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_NODUMP_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("NODUMP");
}
else
{
ret = fprintf(h, "This file is now not dumpable");
if(ret < 1)
{
wRc = errno;
unlink("NODUMP");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with no dump flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("NOTAIL", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_NOTAIL_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("NOTAIL");
}
else
{
ret = fprintf(h, "This file is now not tailed");
if(ret < 1)
{
wRc = errno;
unlink("NOTAIL");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with no tail flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("PROJECTINHERIT", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_PROJINHERIT_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("PROJECTINHERIT");
}
else
{
ret = fprintf(h, "This file is now inheriting project id");
if(ret < 1)
{
wRc = errno;
unlink("PROJECTINHERIT");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with project inherit flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("SECUREDELETION", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_SECRM_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("SECUREDELETION");
}
else
{
ret = fprintf(h, "This file is now secure deletable");
if(ret < 1)
{
wRc = errno;
unlink("SECUREDELETION");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with secure delete flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("SYNC", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_SYNC_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("SYNC");
}
else
{
ret = fprintf(h, "This file is now synchronous");
if(ret < 1)
{
wRc = errno;
unlink("SYNC");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with synchronous flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
h = fopen("UNREMOVABLE", "w+");
rc = 0;
wRc = 0;
sRc = 0;
cRc = 0;
attr = 0;
if(h == NULL) { rc = errno; }
else
{
attr |= FS_UNRM_FL;
fd = fileno(h);
ret = ioctl(fd, FS_IOC_SETFLAGS, &attr);
if(ret)
{
sRc = errno;
unlink("UNREMOVABLE");
}
else
{
ret = fprintf(h, "This file is now marked for undeletion");
if(ret < 1)
{
wRc = errno;
unlink("UNREMOVABLE");
}
}
ret = fclose(h);
if(ret) { cRc = errno; }
}
printf("\tFile with undeletion flag, rc = %d, wRc = %d, sRc = %d, cRc = %d\n", rc, wRc, sRc, cRc);
}
#endif
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