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List: ltp-cvs
Subject: [Ltp-cvs] ltp/testcases/kernel/syscalls/unshare Makefile, NONE,
From: Subrata <subrata_modak () users ! sourceforge ! net>
Date: 2009-05-29 12:32:45
Message-ID: E1MA1GP-0006We-Ff () ddv4jf1 ! ch3 ! sourceforge ! com
[Download RAW message or body]
Update of /cvsroot/ltp/ltp/testcases/kernel/syscalls/unshare
In directory ddv4jf1.ch3.sourceforge.com:/tmp/cvs-serv25033/ltp/testcases/kernel/syscalls/unshare
Added Files:
Makefile unshare01.c
Log Message:
Add/Port unshare01 test for unshare() syscall. Signed-off-by: Manas Kumar Nayak \
<maknayak@in.ibm.com>.
--- NEW FILE: unshare01.c ---
/********************************************************************************/
/* Copyright (c) Crackerjack Project., 2007 */
/* */
/* 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 */
/* */
/****************************************************************************** */
/****************************************************************************** */
/* */
/* File: unshare01.c */
/* */
/* Description: This tests the unshare() syscall. */
/* unshare() allows a process to disassociate parts of its */
/* execution context that are currently being shared with other */
/* processes. Part of the execution context, such as the namespace */
/* ,is shared implicitly when a new process is created using */
/* fork(2) or vfork(2), while other parts, such as virtual memory */
/* , may be shared by explicit request when creating a process */
/* using clone(2). */
/* */
/* The main use of unshare() is to allow a process to control its */
/* shared execution context without creating a new process. */
/* */
/* */
/* The flags argument is a bit mask that specifies which parts of */
/* the execution context should be unshared. This argument is */
/* specified by ORing together zero or more of the following cons- */
/* tants: */
/* */
/* CLONE_FILES: */
/* Reverse the effect of the clone(2) CLONE_FILES flag. */
/* Unshare the file descriptor table, so that the calling */
/* process no longer shares its file descriptors with any */
/* other process. */
/* CLONE_FS: */
/* Reverse the effect of the clone(2) CLONE_FS flag.Unshare*/
/* file system attributes, so that the calling process no */
/* longer shares its root directory, current directory, or */
/* umask attributes with any other process. */
/* CLONE_NEWNS: */
/* This flag has the same effect as the clone(2) CLONE_NEWNS*/
/* flag. Unshare the namespace, so that the calling process*/
/* has a private copy of its namespacei which is not shared*/
/* with any other process. Specifying this flag automat- */
/* ically implies CLONE_FS as well. */
/* */
/* If flags is specified as zero, then unshare() is a no-op; no */
/* changes are made to the calling process's execution context. */
/* */
/* Usage: <for command-line> */
/* unshare01 [-c n] [-e][-i n] [-I x] [-p x] [-t] */
/* where, -c n : Run n copies concurrently. */
/* -e : Turn on errno logging. */
/* -i n : Execute test n times. */
/* -I x : Execute test for x seconds. */
/* -P x : Pause for x seconds between iterations. */
/* -t : Turn on syscall timing. */
/* */
/* Total Tests: 1 */
/* */
/* Test Name: unshare01 */
/* History: Porting from Crackerjack to LTP is done by */
/* Manas Kumar Nayak maknayak@in.ibm.com> */
/********************************************************************************/
#include <stdio.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sched.h>
#include <limits.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/syscall.h>
#include <errno.h>
#include <pwd.h>
#include <grp.h>
#include <string.h>
#include <sys/param.h>
#include <stdio.h>
/* Harness Specific Include Files. */
#include "test.h"
#include "usctest.h"
#include "linux_syscall_numbers.h"
/* Extern Global Variables */
extern int Tst_count; /* counter for tst_xxx routines. */
extern char *TESTDIR; /* temporary dir created by tst_tmpdir() */
/* Global Variables */
char *TCID = "unshare01"; /* Test program identifier.*/
int testno;
int TST_TOTAL =1; /* total number of tests in this file. */
/* Extern Global Functions */
/******************************************************************************/
/* */
/* Function: cleanup */
/* */
/* Description: Performs all one time clean up for this test on successful */
/* completion, premature exit or failure. Closes all temporary */
/* files, removes all temporary directories exits the test with */
/* appropriate TEST_RETURNurn code by calling tst_exit() function. \
*/ /* */
/* Input: None. */
/* */
/* Output: None. */
/* */
/* Return: On failure - Exits calling tst_exit(). Non '0' TEST_RETURNurn code. \
*/ /* On success - Exits calling tst_exit(). With '0' TEST_RETURNurn \
code. */ /* \
*/ /******************************************************************************/
extern void cleanup() {
/* Remove tmp dir and all files in it */
TEST_CLEANUP;
tst_rmdir();
/* Exit with appropriate TEST_RETURNurn code. */
tst_exit();
}
/* Local Functions */
/******************************************************************************/
/* */
/* Function: setup */
/* */
/* Description: Performs all one time setup for this test. This function is */
/* typically used to capture signals, create temporary dirs */
/* and temporary files that may be used in the course of this */
/* test. */
/* */
/* Input: None. */
/* */
/* Output: None. */
/* */
/* Return: On failure - Exits by calling cleanup(). */
/* On success - TEST_RETURNurns 0. \
*/ /* */
/******************************************************************************/
void setup() {
/* Capture signals if any */
/* Create temporary directories */
TEST_PAUSE;
tst_tmpdir();
}
int main(int ac, char **av) {
pid_t pid1;
int lc; /* loop counter */
char *msg; /* message TEST_RETURNurned from parse_opts */
/* parse standard options */
if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
tst_exit();
}
setup();
/* Check looping state if -i option given */
for (lc = 0; TEST_LOOPING(lc); ++lc) {
Tst_count = 0;
for (testno = 0; testno < TST_TOTAL; ++testno) {
/*
*fork a child process;testing which one is a child or a parent;
* */
TEST(pid1=fork()); //call to fork()
if (TEST_RETURN == -1){
tst_resm(TFAIL, "fork() Failed, errno=%d : %s",TEST_ERRNO, strerror(TEST_ERRNO));
cleanup();
tst_exit();
}else if (TEST_RETURN == 0){
if((TEST_RETURN = unshare(CLONE_FILES)) == 0) {
tst_resm(TPASS, "unshare with CLONE_FILES call succeeded");
tst_exit();
}else if (TEST_RETURN == -1 )
tst_resm(TFAIL,"unshare Failed, errno=%d : %s",TEST_ERRNO, \
strerror(TEST_ERRNO)); tst_exit();
}else{
}
TEST(pid1=fork()); //call to fork()
if (TEST_RETURN == -1){
tst_resm(TFAIL, "fork() Failed, errno=%d : %s",TEST_ERRNO, \
strerror(TEST_ERRNO)); cleanup();
tst_exit();
}else if (TEST_RETURN == 0){
if((TEST_RETURN = unshare(CLONE_FS)) == 0) {
tst_resm(TPASS, "unshare with CLONE_FS call \
succeeded"); tst_exit();
}else if (TEST_RETURN == -1 )
tst_resm(TFAIL,"unshare Failed 2, errno=%d : \
%s",TEST_ERRNO, strerror(TEST_ERRNO)); tst_exit();
}else{
}
TEST(pid1=fork()); //call to fork()
if (TEST_RETURN == -1){
tst_resm(TFAIL, "fork() Failed, errno=%d : %s",TEST_ERRNO, \
strerror(TEST_ERRNO)); cleanup();
tst_exit();
}else if (TEST_RETURN == 0){
if((TEST_RETURN = unshare(CLONE_NEWNS)) == 0) {
tst_resm(TPASS, "unshare call with CLONE_NEWNS \
succeeded"); tst_exit();
}else if (TEST_RETURN == -1 )
tst_resm(TFAIL,"unshare Failed 2, errno=%d : \
%s",TEST_ERRNO, strerror(TEST_ERRNO)); tst_exit();
}else{
}
}
}
cleanup();
tst_exit();
}
--- NEW FILE: Makefile ---
#
# Copyright (c) International Business Machines Corp., 2009
#
# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
CFLAGS += -I../../../../include -Wall
LDLIBS += -L../../../../lib -lltp
SRCS = $(wildcard *.c)
TARGETS = $(patsubst %.c,%,$(SRCS))
all: $(TARGETS)
install:
@set -e; for i in $(TARGETS); do ln -f $$i ../../../bin/$$i ; done
clean:
rm -f $(TARGETS)
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