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path: root/tests/unit/test-trace-freebsd.c
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/* vim: set et ts=4 sts=4 sw=4 fdm=syntax : */

/*
 * Copyright (c) 2010 Ali Polatel <alip@exherbo.org>
 *
 * This file is part of the sydbox sandbox tool. sydbox 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.
 *
 * sydbox 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
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif // HAVE_CONFIG_H

#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/syscall.h>
#include <unistd.h>

#include <glib.h>

#include "syd-config.h"
#include "syd-trace-freebsd.h"

#include "test-helpers.h"

#if defined(I386)
#define CHECK_PERSONALITY 0
#else
#error unsupported architecture
#endif

static void test1(void)
{
    int ret, status;
    pid_t pid;

    pid = fork();
    if (0 > pid)
        XFAIL("fork() failed: %s\n", g_strerror(errno));
    else if (0 == pid) { // child
        if (0 > trace_me()) {
            g_printerr("trace_me() failed: %s\n", g_strerror(errno));
            _exit(EXIT_FAILURE);
        }
        kill(getpid(), SIGSTOP);
    }
    else { // parent
        waitpid(pid, &status, 0);

        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGSTOP\n");

        ret = trace_event(status);
        XFAIL_UNLESS(E_STOP == ret, "Expected E_STOP got %d\n", ret);

        trace_kill(pid);
    }
}

static void test2(void)
{
    int ret, status;
    pid_t pid;

    pid = fork();
    if (0 > pid)
        XFAIL("fork() failed: %s\n", g_strerror(errno));
    else if (0 == pid) { // child
        if (0 > trace_me()) {
            g_printerr("trace_me() failed: %s\n", g_strerror(errno));
            _exit(EXIT_FAILURE);
        }
        kill(getpid(), SIGSTOP);
        sleep(1);
    }
    else { // parent
        waitpid(pid, &status, 0);

        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGSTOP\n");

        /* Resume the child, it will stop at the next system call. */
        XFAIL_IF(0 > trace_syscall(pid, 0, -1), "failed to resume child: %s\n", g_strerror(errno));
        waitpid(pid, &status, 0);
        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGTRAP\n");

        ret = trace_event(status);
        XFAIL_UNLESS(E_TRAP == ret, "Expected E_TRAP got:%d sig:%d\n", ret, WSTOPSIG(status));

        trace_kill(pid);
    }
}

static void test3(void)
{
    int ret, status;
    pid_t pid;

    pid = fork();
    if (0 > pid)
        XFAIL("fork() failed: %s\n", g_strerror(errno));
    else if (0 == pid) { // child
        if (0 > trace_me()) {
            g_printerr("trace_me() failed: %s\n", g_strerror(errno));
            _exit(EXIT_FAILURE);
        }
        kill(getpid(), SIGSTOP);
        kill(getpid(), SIGINT);
    }
    else { // parent
        waitpid(pid, &status, 0);

        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGSTOP\n");

        /* Resume the child, it will receive a SIGINT */
        XFAIL_IF(0 > trace_cont(pid), "trace_cont() failed: %s\n", g_strerror(errno));
        waitpid(pid, &status, 0);

        /* Check the event */
        ret = trace_event(status);
        XFAIL_UNLESS(E_GENUINE == ret, "Expected E_GENUINE got %d\n", ret);

        trace_kill(pid);
    }
}

static void test4(void)
{
    int ret, status;
    pid_t pid;

    pid = fork();
    if (0 > pid)
        XFAIL("fork() failed: %s\n", g_strerror(errno));
    else if (0 == pid) { // child
        if (0 > trace_me()) {
            g_printerr("trace_me() failed: %s\n", g_strerror(errno));
            _exit(EXIT_FAILURE);
        }
        kill(getpid(), SIGSTOP);
        _exit(EXIT_SUCCESS);
    }
    else { // parent
        waitpid(pid, &status, 0);

        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGSTOP\n");

        /* Resume the child, it will exit normally */
        XFAIL_IF(0 > trace_cont(pid), "trace_cont() failed: %s\n", g_strerror(errno));
        waitpid(pid, &status, 0);

        /* Check the event */
        ret = trace_event(status);
        XFAIL_UNLESS(E_EXIT == ret, "Expected E_EXIT got %d\n", ret);
    }
}

static void test6(void)
{
    int ret, status;
    long sno;
    pid_t pid;

    pid = fork();
    if (0 > pid)
        XFAIL("fork() failed: %s\n", g_strerror(errno));
    else if (0 == pid) { // child
        if (0 > trace_me()) {
            g_printerr("trace_me() failed: %s\n", g_strerror(errno));
            _exit(EXIT_FAILURE);
        }
        kill(getpid(), SIGSTOP);
        open("/dev/null", O_RDONLY);
        pause();
    }
    else { // parent
        waitpid(pid, &status, 0);

        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGSTOP\n");

        /* Resume the child and it will stop at the next system call */
        XFAIL_IF(0 > trace_syscall(pid, 0, -1), "trace_syscall() failed: %s\n", g_strerror(errno));
        waitpid(pid, &status, 0);
        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGTRAP\n");

        /* Check the system call number */
        XFAIL_IF(0 > trace_get_syscall(pid, &sno), "failed to get system call: %s\n", g_strerror(errno));
        XFAIL_UNLESS(SYS_open == sno, "expected SYS_open, got %d\n", sno);

        trace_kill(pid);
    }
}

static void test7(void)
{
    int ret, status;
    long sno;
    pid_t pid;

    pid = fork();
    if (0 > pid)
        XFAIL("fork() failed: %s\n", g_strerror(errno));
    else if (0 == pid) { // child
        if (0 > trace_me()) {
            g_printerr("trace_me() failed: %s\n", g_strerror(errno));
            _exit(EXIT_FAILURE);
        }
        kill(getpid(), SIGSTOP);
        open("/dev/null", O_RDONLY);
        pause();
    }
    else { // parent
        waitpid(pid, &status, 0);

        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGSTOP\n");

        /* Resume the child and it will stop at the next system call */
        XFAIL_IF(0 > trace_syscall(pid, 0, -1), "trace_syscall() failed: %s\n", g_strerror(errno));
        waitpid(pid, &status, 0);
        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGTRAP\n");

        XFAIL_IF(0 > trace_set_syscall(pid, 0xbadca11), "failed to set system call: %s", g_strerror(errno));

        /* Resume the child and it will stop at the end of the system call */
        XFAIL_IF(0 > trace_syscall(pid, 0, -1), "trace_syscall() failed: %s\n", g_strerror(errno));
        waitpid(pid, &status, 0);
        XFAIL_UNLESS(WIFSTOPPED(status), "child didn't stop by sending itself SIGTRAP\n");

        /* Check the system call number */
        XFAIL_IF(0 > trace_get_syscall(pid, &sno), "failed to get system call: %s\n", g_strerror(errno));
        XFAIL_UNLESS(SYS_getpid == sno, "expected 0xbadca11, got %d\n", sno);

        trace_kill(pid);
    }
}

static void no_log(const gchar *log_domain, GLogLevelFlags log_level, const gchar *message, gpointer user_data)
{
}

int main(int argc, char **argv)
{
    g_setenv(ENV_NO_CONFIG, "1", 1);
    sydbox_config_load(NULL, NULL);

    g_test_init(&argc, &argv, NULL);

    g_log_set_default_handler(no_log, NULL);

    g_test_add_func("/trace/event/stop", test1);
    g_test_add_func("/trace/event/trap", test2);
    g_test_add_func("/trace/event/genuine", test3);
    g_test_add_func("/trace/event/exit/normal", test4);
    /* TODO: g_test_add_func("/trace/freebsd/event/exit/signal", test5); */

    g_test_add_func("/trace/syscall/get", test6);
    g_test_add_func("/trace/syscall/set", test7);

    return g_test_run();
}