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Revert "selftests/timens: add a test for vfork+exit" 

The next patch reverts the code that this test verified.

This reverts commit 6342140db6.

Signed-off-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220913102551.1121611-2-avagin@google.com
This commit is contained in:
Andrei Vagin 2022-09-13 03:25:50 -07:00 committed by Kees Cook
parent 1c23f9e627
commit 2b1e8921fc
2 changed files with 1 additions and 91 deletions
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2
tools/testing/selftests/timens/Makefile
View File

@ -1,4 +1,4 @@
TEST_GEN_PROGS := timens timerfd timer clock_nanosleep procfs exec futex vfork_exec
TEST_GEN_PROGS := timens timerfd timer clock_nanosleep procfs exec futex
TEST_GEN_PROGS_EXTENDED := gettime_perf
CFLAGS := -Wall -Werror -pthread

90
tools/testing/selftests/timens/vfork_exec.c
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@ -1,90 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <stdio.h>
#include <stdbool.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <string.h>
#include "log.h"
#include "timens.h"
#define OFFSET (36000)
int main(int argc, char *argv[])
{
struct timespec now, tst;
int status, i;
pid_t pid;
if (argc > 1) {
if (sscanf(argv[1], "%ld", &now.tv_sec) != 1)
return pr_perror("sscanf");
for (i = 0; i < 2; i++) {
_gettime(CLOCK_MONOTONIC, &tst, i);
if (abs(tst.tv_sec - now.tv_sec) > 5)
return pr_fail("%ld %ld\n", now.tv_sec, tst.tv_sec);
}
return 0;
}
nscheck();
ksft_set_plan(1);
clock_gettime(CLOCK_MONOTONIC, &now);
if (unshare_timens())
return 1;
if (_settime(CLOCK_MONOTONIC, OFFSET))
return 1;
for (i = 0; i < 2; i++) {
_gettime(CLOCK_MONOTONIC, &tst, i);
if (abs(tst.tv_sec - now.tv_sec) > 5)
return pr_fail("%ld %ld\n",
now.tv_sec, tst.tv_sec);
}
pid = vfork();
if (pid < 0)
return pr_perror("fork");
if (pid == 0) {
char now_str[64];
char *cargv[] = {"exec", now_str, NULL};
char *cenv[] = {NULL};
// Check that we are still in the source timens.
for (i = 0; i < 2; i++) {
_gettime(CLOCK_MONOTONIC, &tst, i);
if (abs(tst.tv_sec - now.tv_sec) > 5)
return pr_fail("%ld %ld\n",
now.tv_sec, tst.tv_sec);
}
/* Check for proper vvar offsets after execve. */
snprintf(now_str, sizeof(now_str), "%ld", now.tv_sec + OFFSET);
execve("/proc/self/exe", cargv, cenv);
return pr_perror("execve");
}
if (waitpid(pid, &status, 0) != pid)
return pr_perror("waitpid");
if (status)
ksft_exit_fail();
ksft_test_result_pass("exec\n");
ksft_exit_pass();
return 0;
}