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freebsd-nq/tests/sys/kern/reaper.c

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Add some tests for reaper functionality (in procctl()). MFC after: 1 week
2016-12-10 22:05:24 +00:00
/*-
* Copyright (c) 2016 Jilles Tjoelker
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/procctl.h>
Reparent a child of pdfork(2) to its reaper when the procdesc is closed. Unconditionally reparenting to PID 1 breaks the procctl(2) reaper functionality. Add a regression test for this case. Reviewed by: kib Approved by: re (gjb) MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D17589
2018-10-16 20:06:56 +00:00
#include <sys/procdesc.h>
Add some tests for reaper functionality (in procctl()). MFC after: 1 week
2016-12-10 22:05:24 +00:00
#include <sys/wait.h>
#include <atf-c.h>
#include <errno.h>
#include <signal.h>
#include <unistd.h>
Add tests for reaper receiving SIGCHLD (r309886). PR: 213928 MFC after: 2 weeks
2016-12-12 22:51:29 +00:00
static void
dummy_sighandler(int sig __unused, siginfo_t *info __unused, void *ctx __unused)
{
}
Add some tests for reaper functionality (in procctl()). MFC after: 1 week
2016-12-10 22:05:24 +00:00
ATF_TC_WITHOUT_HEAD(reaper_wait_child_first);
ATF_TC_BODY(reaper_wait_child_first, tc)
{
pid_t parent, child, grandchild, pid;
int status, r;
int pip[2];
/* Be paranoid. */
pid = waitpid(-1, NULL, WNOHANG);
ATF_REQUIRE(pid == -1 && errno == ECHILD);
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
r = pipe(pip);
ATF_REQUIRE_EQ(0, r);
child = fork();
ATF_REQUIRE(child != -1);
if (child == 0) {
if (close(pip[1]) != 0)
_exit(100);
grandchild = fork();
if (grandchild == -1)
_exit(101);
else if (grandchild == 0) {
if (read(pip[0], &(uint8_t){ 0 }, 1) != 0)
_exit(102);
if (getppid() != parent)
_exit(103);
_exit(2);
} else
_exit(3);
}
pid = waitpid(child, &status, 0);
ATF_REQUIRE_EQ(child, pid);
r = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
ATF_CHECK_EQ(3, r);
r = close(pip[1]);
ATF_REQUIRE_EQ(0, r);
pid = waitpid(-1, &status, 0);
ATF_REQUIRE(pid > 0 && pid != child);
r = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
ATF_CHECK_EQ(2, r);
r = close(pip[0]);
ATF_REQUIRE_EQ(0, r);
}
ATF_TC_WITHOUT_HEAD(reaper_wait_grandchild_first);
ATF_TC_BODY(reaper_wait_grandchild_first, tc)
{
pid_t parent, child, grandchild, pid;
int status, r;
/* Be paranoid. */
pid = waitpid(-1, NULL, WNOHANG);
ATF_REQUIRE(pid == -1 && errno == ECHILD);
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
child = fork();
ATF_REQUIRE(child != -1);
if (child == 0) {
grandchild = fork();
if (grandchild == -1)
_exit(101);
else if (grandchild == 0)
_exit(2);
else {
if (waitid(P_PID, grandchild, NULL,
WNOWAIT | WEXITED) != 0)
_exit(102);
_exit(3);
}
}
pid = waitpid(child, &status, 0);
ATF_REQUIRE_EQ(child, pid);
r = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
ATF_CHECK_EQ(3, r);
pid = waitpid(-1, &status, 0);
ATF_REQUIRE(pid > 0 && pid != child);
r = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
ATF_CHECK_EQ(2, r);
}
Add tests for reaper receiving SIGCHLD (r309886). PR: 213928 MFC after: 2 weeks
2016-12-12 22:51:29 +00:00
ATF_TC(reaper_sigchld_child_first);
ATF_TC_HEAD(reaper_sigchld_child_first, tc)
{
atf_tc_set_md_var(tc, "timeout", "2");
}
ATF_TC_BODY(reaper_sigchld_child_first, tc)
{
struct sigaction act;
sigset_t mask;
siginfo_t info;
pid_t parent, child, grandchild, pid;
int r;
int pip[2];
/* Be paranoid. */
pid = waitpid(-1, NULL, WNOHANG);
ATF_REQUIRE(pid == -1 && errno == ECHILD);
act.sa_sigaction = dummy_sighandler;
act.sa_flags = SA_SIGINFO | SA_RESTART;
r = sigemptyset(&act.sa_mask);
ATF_REQUIRE_EQ(0, r);
r = sigaction(SIGCHLD, &act, NULL);
ATF_REQUIRE_EQ(0, r);
r = sigemptyset(&mask);
ATF_REQUIRE_EQ(0, r);
r = sigaddset(&mask, SIGCHLD);
ATF_REQUIRE_EQ(0, r);
r = sigprocmask(SIG_BLOCK, &mask, NULL);
ATF_REQUIRE_EQ(0, r);
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
r = pipe(pip);
ATF_REQUIRE_EQ(0, r);
child = fork();
ATF_REQUIRE(child != -1);
if (child == 0) {
if (close(pip[1]) != 0)
_exit(100);
grandchild = fork();
if (grandchild == -1)
_exit(101);
else if (grandchild == 0) {
if (read(pip[0], &(uint8_t){ 0 }, 1) != 0)
_exit(102);
if (getppid() != parent)
_exit(103);
_exit(2);
} else
_exit(3);
}
r = sigwaitinfo(&mask, &info);
ATF_REQUIRE_EQ(SIGCHLD, r);
ATF_CHECK_EQ(SIGCHLD, info.si_signo);
ATF_CHECK_EQ(CLD_EXITED, info.si_code);
ATF_CHECK_EQ(3, info.si_status);
ATF_CHECK_EQ(child, info.si_pid);
pid = waitpid(child, NULL, 0);
ATF_REQUIRE_EQ(child, pid);
r = close(pip[1]);
ATF_REQUIRE_EQ(0, r);
r = sigwaitinfo(&mask, &info);
ATF_REQUIRE_EQ(SIGCHLD, r);
ATF_CHECK_EQ(SIGCHLD, info.si_signo);
ATF_CHECK_EQ(CLD_EXITED, info.si_code);
ATF_CHECK_EQ(2, info.si_status);
grandchild = info.si_pid;
ATF_REQUIRE(grandchild > 0);
ATF_REQUIRE(grandchild != parent);
ATF_REQUIRE(grandchild != child);
pid = waitpid(-1, NULL, 0);
ATF_REQUIRE_EQ(grandchild, pid);
r = close(pip[0]);
ATF_REQUIRE_EQ(0, r);
}
ATF_TC(reaper_sigchld_grandchild_first);
ATF_TC_HEAD(reaper_sigchld_grandchild_first, tc)
{
atf_tc_set_md_var(tc, "timeout", "2");
}
ATF_TC_BODY(reaper_sigchld_grandchild_first, tc)
{
struct sigaction act;
sigset_t mask;
siginfo_t info;
pid_t parent, child, grandchild, pid;
int r;
/* Be paranoid. */
pid = waitpid(-1, NULL, WNOHANG);
ATF_REQUIRE(pid == -1 && errno == ECHILD);
act.sa_sigaction = dummy_sighandler;
act.sa_flags = SA_SIGINFO | SA_RESTART;
r = sigemptyset(&act.sa_mask);
ATF_REQUIRE_EQ(0, r);
r = sigaction(SIGCHLD, &act, NULL);
ATF_REQUIRE_EQ(0, r);
r = sigemptyset(&mask);
ATF_REQUIRE_EQ(0, r);
r = sigaddset(&mask, SIGCHLD);
ATF_REQUIRE_EQ(0, r);
r = sigprocmask(SIG_BLOCK, &mask, NULL);
ATF_REQUIRE_EQ(0, r);
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
child = fork();
ATF_REQUIRE(child != -1);
if (child == 0) {
grandchild = fork();
if (grandchild == -1)
_exit(101);
else if (grandchild == 0)
_exit(2);
else {
if (waitid(P_PID, grandchild, NULL,
WNOWAIT | WEXITED) != 0)
_exit(102);
_exit(3);
}
}
pid = waitpid(child, NULL, 0);
ATF_REQUIRE_EQ(child, pid);
r = sigwaitinfo(&mask, &info);
ATF_REQUIRE_EQ(SIGCHLD, r);
ATF_CHECK_EQ(SIGCHLD, info.si_signo);
ATF_CHECK_EQ(CLD_EXITED, info.si_code);
ATF_CHECK_EQ(2, info.si_status);
grandchild = info.si_pid;
ATF_REQUIRE(grandchild > 0);
ATF_REQUIRE(grandchild != parent);
ATF_REQUIRE(grandchild != child);
pid = waitpid(-1, NULL, 0);
ATF_REQUIRE_EQ(grandchild, pid);
}
Add some tests for reaper functionality (in procctl()). MFC after: 1 week
2016-12-10 22:05:24 +00:00
ATF_TC_WITHOUT_HEAD(reaper_status);
ATF_TC_BODY(reaper_status, tc)
{
struct procctl_reaper_status st;
ssize_t sr;
pid_t parent, child, pid;
int r, status;
int pip[2];
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_STATUS, &st);
ATF_REQUIRE_EQ(0, r);
ATF_CHECK_EQ(0, st.rs_flags & REAPER_STATUS_OWNED);
ATF_CHECK(st.rs_children > 0);
ATF_CHECK(st.rs_descendants > 0);
ATF_CHECK(st.rs_descendants >= st.rs_children);
ATF_CHECK(st.rs_reaper != parent);
ATF_CHECK(st.rs_reaper > 0);
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
r = procctl(P_PID, parent, PROC_REAP_STATUS, &st);
ATF_REQUIRE_EQ(0, r);
ATF_CHECK_EQ(REAPER_STATUS_OWNED,
st.rs_flags & (REAPER_STATUS_OWNED | REAPER_STATUS_REALINIT));
ATF_CHECK_EQ(0, st.rs_children);
ATF_CHECK_EQ(0, st.rs_descendants);
ATF_CHECK(st.rs_reaper == parent);
ATF_CHECK_EQ(-1, st.rs_pid);
r = pipe(pip);
ATF_REQUIRE_EQ(0, r);
child = fork();
ATF_REQUIRE(child != -1);
if (child == 0) {
if (close(pip[0]) != 0)
_exit(100);
if (procctl(P_PID, parent, PROC_REAP_STATUS, &st) != 0)
_exit(101);
if (write(pip[1], &st, sizeof(st)) != (ssize_t)sizeof(st))
_exit(102);
if (procctl(P_PID, getpid(), PROC_REAP_STATUS, &st) != 0)
_exit(103);
if (write(pip[1], &st, sizeof(st)) != (ssize_t)sizeof(st))
_exit(104);
_exit(0);
}
r = close(pip[1]);
ATF_REQUIRE_EQ(0, r);
sr = read(pip[0], &st, sizeof(st));
ATF_REQUIRE_EQ((ssize_t)sizeof(st), sr);
ATF_CHECK_EQ(REAPER_STATUS_OWNED,
st.rs_flags & (REAPER_STATUS_OWNED | REAPER_STATUS_REALINIT));
ATF_CHECK_EQ(1, st.rs_children);
ATF_CHECK_EQ(1, st.rs_descendants);
ATF_CHECK(st.rs_reaper == parent);
ATF_CHECK_EQ(child, st.rs_pid);
sr = read(pip[0], &st, sizeof(st));
ATF_REQUIRE_EQ((ssize_t)sizeof(st), sr);
ATF_CHECK_EQ(0,
st.rs_flags & (REAPER_STATUS_OWNED | REAPER_STATUS_REALINIT));
ATF_CHECK_EQ(1, st.rs_children);
ATF_CHECK_EQ(1, st.rs_descendants);
ATF_CHECK(st.rs_reaper == parent);
ATF_CHECK_EQ(child, st.rs_pid);
r = close(pip[0]);
ATF_REQUIRE_EQ(0, r);
pid = waitpid(child, &status, 0);
ATF_REQUIRE_EQ(child, pid);
ATF_CHECK_EQ(0, status);
r = procctl(P_PID, parent, PROC_REAP_STATUS, &st);
ATF_REQUIRE_EQ(0, r);
ATF_CHECK_EQ(REAPER_STATUS_OWNED,
st.rs_flags & (REAPER_STATUS_OWNED | REAPER_STATUS_REALINIT));
ATF_CHECK_EQ(0, st.rs_children);
ATF_CHECK_EQ(0, st.rs_descendants);
ATF_CHECK(st.rs_reaper == parent);
ATF_CHECK_EQ(-1, st.rs_pid);
}
ATF_TC_WITHOUT_HEAD(reaper_getpids);
ATF_TC_BODY(reaper_getpids, tc)
{
struct procctl_reaper_pidinfo info[10];
ssize_t sr;
pid_t parent, child, grandchild, pid;
int r, status, childidx;
int pipa[2], pipb[2];
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
memset(info, '\0', sizeof(info));
r = procctl(P_PID, parent, PROC_REAP_GETPIDS,
&(struct procctl_reaper_pids){
.rp_count = sizeof(info) / sizeof(info[0]),
.rp_pids = info
});
ATF_CHECK_EQ(0, r);
ATF_CHECK_EQ(0, info[0].pi_flags & REAPER_PIDINFO_VALID);
r = pipe(pipa);
ATF_REQUIRE_EQ(0, r);
r = pipe(pipb);
ATF_REQUIRE_EQ(0, r);
child = fork();
ATF_REQUIRE(child != -1);
if (child == 0) {
if (close(pipa[1]) != 0)
_exit(100);
if (close(pipb[0]) != 0)
_exit(100);
if (read(pipa[0], &(uint8_t){ 0 }, 1) != 1)
_exit(101);
grandchild = fork();
if (grandchild == -1)
_exit(102);
if (grandchild == 0) {
if (write(pipb[1], &(uint8_t){ 0 }, 1) != 1)
_exit(103);
if (read(pipa[0], &(uint8_t){ 0 }, 1) != 1)
_exit(104);
_exit(0);
}
for (;;)
pause();
}
r = close(pipa[0]);
ATF_REQUIRE_EQ(0, r);
r = close(pipb[1]);
ATF_REQUIRE_EQ(0, r);
memset(info, '\0', sizeof(info));
r = procctl(P_PID, parent, PROC_REAP_GETPIDS,
&(struct procctl_reaper_pids){
.rp_count = sizeof(info) / sizeof(info[0]),
.rp_pids = info
});
ATF_CHECK_EQ(0, r);
ATF_CHECK_EQ(REAPER_PIDINFO_VALID | REAPER_PIDINFO_CHILD,
info[0].pi_flags & (REAPER_PIDINFO_VALID | REAPER_PIDINFO_CHILD));
ATF_CHECK_EQ(child, info[0].pi_pid);
ATF_CHECK_EQ(child, info[0].pi_subtree);
ATF_CHECK_EQ(0, info[1].pi_flags & REAPER_PIDINFO_VALID);
sr = write(pipa[1], &(uint8_t){ 0 }, 1);
ATF_REQUIRE_EQ(1, sr);
sr = read(pipb[0], &(uint8_t){ 0 }, 1);
ATF_REQUIRE_EQ(1, sr);
memset(info, '\0', sizeof(info));
r = procctl(P_PID, parent, PROC_REAP_GETPIDS,
&(struct procctl_reaper_pids){
.rp_count = sizeof(info) / sizeof(info[0]),
.rp_pids = info
});
ATF_CHECK_EQ(0, r);
ATF_CHECK_EQ(REAPER_PIDINFO_VALID,
info[0].pi_flags & REAPER_PIDINFO_VALID);
ATF_CHECK_EQ(REAPER_PIDINFO_VALID,
info[1].pi_flags & REAPER_PIDINFO_VALID);
ATF_CHECK_EQ(0, info[2].pi_flags & REAPER_PIDINFO_VALID);
ATF_CHECK_EQ(child, info[0].pi_subtree);
ATF_CHECK_EQ(child, info[1].pi_subtree);
childidx = info[1].pi_pid == child ? 1 : 0;
ATF_CHECK_EQ(REAPER_PIDINFO_CHILD,
info[childidx].pi_flags & REAPER_PIDINFO_CHILD);
ATF_CHECK_EQ(0, info[childidx ^ 1].pi_flags & REAPER_PIDINFO_CHILD);
ATF_CHECK(info[childidx].pi_pid == child);
grandchild = info[childidx ^ 1].pi_pid;
ATF_CHECK(grandchild > 0);
ATF_CHECK(grandchild != child);
ATF_CHECK(grandchild != parent);
r = kill(child, SIGTERM);
ATF_REQUIRE_EQ(0, r);
pid = waitpid(child, &status, 0);
ATF_REQUIRE_EQ(child, pid);
ATF_CHECK(WIFSIGNALED(status) && WTERMSIG(status) == SIGTERM);
memset(info, '\0', sizeof(info));
r = procctl(P_PID, parent, PROC_REAP_GETPIDS,
&(struct procctl_reaper_pids){
.rp_count = sizeof(info) / sizeof(info[0]),
.rp_pids = info
});
ATF_CHECK_EQ(0, r);
ATF_CHECK_EQ(REAPER_PIDINFO_VALID,
info[0].pi_flags & REAPER_PIDINFO_VALID);
ATF_CHECK_EQ(0, info[1].pi_flags & REAPER_PIDINFO_VALID);
ATF_CHECK_EQ(child, info[0].pi_subtree);
ATF_CHECK_EQ(REAPER_PIDINFO_CHILD,
info[0].pi_flags & REAPER_PIDINFO_CHILD);
ATF_CHECK_EQ(grandchild, info[0].pi_pid);
sr = write(pipa[1], &(uint8_t){ 0 }, 1);
ATF_REQUIRE_EQ(1, sr);
memset(info, '\0', sizeof(info));
r = procctl(P_PID, parent, PROC_REAP_GETPIDS,
&(struct procctl_reaper_pids){
.rp_count = sizeof(info) / sizeof(info[0]),
.rp_pids = info
});
ATF_CHECK_EQ(0, r);
ATF_CHECK_EQ(REAPER_PIDINFO_VALID,
info[0].pi_flags & REAPER_PIDINFO_VALID);
ATF_CHECK_EQ(0, info[1].pi_flags & REAPER_PIDINFO_VALID);
ATF_CHECK_EQ(child, info[0].pi_subtree);
ATF_CHECK_EQ(REAPER_PIDINFO_CHILD,
info[0].pi_flags & REAPER_PIDINFO_CHILD);
ATF_CHECK_EQ(grandchild, info[0].pi_pid);
pid = waitpid(grandchild, &status, 0);
ATF_REQUIRE_EQ(grandchild, pid);
ATF_CHECK_EQ(0, status);
memset(info, '\0', sizeof(info));
r = procctl(P_PID, parent, PROC_REAP_GETPIDS,
&(struct procctl_reaper_pids){
.rp_count = sizeof(info) / sizeof(info[0]),
.rp_pids = info
});
ATF_CHECK_EQ(0, r);
ATF_CHECK_EQ(0, info[0].pi_flags & REAPER_PIDINFO_VALID);
r = close(pipa[1]);
ATF_REQUIRE_EQ(0, r);
r = close(pipb[0]);
ATF_REQUIRE_EQ(0, r);
}
ATF_TC_WITHOUT_HEAD(reaper_kill_badsig);
ATF_TC_BODY(reaper_kill_badsig, tc)
{
struct procctl_reaper_kill params;
pid_t parent;
int r;
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
params.rk_sig = -1;
params.rk_flags = 0;
r = procctl(P_PID, parent, PROC_REAP_KILL, &params);
ATF_CHECK(r == -1 && errno == EINVAL);
}
ATF_TC_WITHOUT_HEAD(reaper_kill_sigzero);
ATF_TC_BODY(reaper_kill_sigzero, tc)
{
struct procctl_reaper_kill params;
pid_t parent;
int r;
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
params.rk_sig = 0;
params.rk_flags = 0;
r = procctl(P_PID, parent, PROC_REAP_KILL, &params);
ATF_CHECK(r == -1 && errno == EINVAL);
}
ATF_TC_WITHOUT_HEAD(reaper_kill_empty);
ATF_TC_BODY(reaper_kill_empty, tc)
{
struct procctl_reaper_kill params;
pid_t parent;
int r;
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
params.rk_sig = SIGTERM;
params.rk_flags = 0;
params.rk_killed = 77;
r = procctl(P_PID, parent, PROC_REAP_KILL, &params);
ATF_CHECK(r == -1 && errno == ESRCH);
ATF_CHECK_EQ(0, params.rk_killed);
}
ATF_TC_WITHOUT_HEAD(reaper_kill_normal);
ATF_TC_BODY(reaper_kill_normal, tc)
{
struct procctl_reaper_kill params;
ssize_t sr;
pid_t parent, child, grandchild, pid;
int r, status;
int pip[2];
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
r = pipe(pip);
ATF_REQUIRE_EQ(0, r);
child = fork();
ATF_REQUIRE(child != -1);
if (child == 0) {
if (close(pip[0]) != 0)
_exit(100);
grandchild = fork();
if (grandchild == -1)
_exit(101);
if (grandchild == 0) {
if (write(pip[1], &(uint8_t){ 0 }, 1) != 1)
_exit(102);
for (;;)
pause();
}
for (;;)
pause();
}
r = close(pip[1]);
ATF_REQUIRE_EQ(0, r);
sr = read(pip[0], &(uint8_t){ 0 }, 1);
ATF_REQUIRE_EQ(1, sr);
params.rk_sig = SIGTERM;
params.rk_flags = 0;
params.rk_killed = 77;
r = procctl(P_PID, parent, PROC_REAP_KILL, &params);
ATF_CHECK_EQ(0, r);
ATF_CHECK_EQ(2, params.rk_killed);
pid = waitpid(child, &status, 0);
ATF_REQUIRE_EQ(child, pid);
ATF_CHECK(WIFSIGNALED(status) && WTERMSIG(status) == SIGTERM);
pid = waitpid(-1, &status, 0);
ATF_REQUIRE(pid > 0);
ATF_CHECK(pid != parent);
ATF_CHECK(pid != child);
ATF_CHECK(WIFSIGNALED(status) && WTERMSIG(status) == SIGTERM);
r = close(pip[0]);
ATF_REQUIRE_EQ(0, r);
}
reaper: Make REAPER_KILL_SUBTREE actually work. MFC after: 2 weeks
2016-12-14 22:49:20 +00:00
ATF_TC_WITHOUT_HEAD(reaper_kill_subtree);
ATF_TC_BODY(reaper_kill_subtree, tc)
{
struct procctl_reaper_kill params;
ssize_t sr;
pid_t parent, child1, child2, grandchild1, grandchild2, pid;
int r, status;
int pip[2];
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(0, r);
r = pipe(pip);
ATF_REQUIRE_EQ(0, r);
child1 = fork();
ATF_REQUIRE(child1 != -1);
if (child1 == 0) {
if (close(pip[0]) != 0)
_exit(100);
grandchild1 = fork();
if (grandchild1 == -1)
_exit(101);
if (grandchild1 == 0) {
if (write(pip[1], &(uint8_t){ 0 }, 1) != 1)
_exit(102);
for (;;)
pause();
}
for (;;)
pause();
}
child2 = fork();
ATF_REQUIRE(child2 != -1);
if (child2 == 0) {
if (close(pip[0]) != 0)
_exit(100);
grandchild2 = fork();
if (grandchild2 == -1)
_exit(101);
if (grandchild2 == 0) {
if (write(pip[1], &(uint8_t){ 0 }, 1) != 1)
_exit(102);
for (;;)
pause();
}
for (;;)
pause();
}
r = close(pip[1]);
ATF_REQUIRE_EQ(0, r);
sr = read(pip[0], &(uint8_t){ 0 }, 1);
ATF_REQUIRE_EQ(1, sr);
sr = read(pip[0], &(uint8_t){ 0 }, 1);
ATF_REQUIRE_EQ(1, sr);
params.rk_sig = SIGUSR1;
params.rk_flags = REAPER_KILL_SUBTREE;
params.rk_subtree = child1;
params.rk_killed = 77;
r = procctl(P_PID, parent, PROC_REAP_KILL, &params);
ATF_REQUIRE_EQ(0, r);
ATF_REQUIRE_EQ(2, params.rk_killed);
ATF_CHECK_EQ(-1, params.rk_fpid);
pid = waitpid(child1, &status, 0);
ATF_REQUIRE_EQ(child1, pid);
ATF_CHECK(WIFSIGNALED(status) && WTERMSIG(status) == SIGUSR1);
pid = waitpid(-1, &status, 0);
ATF_REQUIRE(pid > 0);
ATF_CHECK(pid != parent);
ATF_CHECK(pid != child1);
ATF_CHECK(pid != child2);
ATF_CHECK(WIFSIGNALED(status) && WTERMSIG(status) == SIGUSR1);
params.rk_sig = SIGUSR2;
params.rk_flags = REAPER_KILL_SUBTREE;
params.rk_subtree = child2;
params.rk_killed = 77;
r = procctl(P_PID, parent, PROC_REAP_KILL, &params);
ATF_REQUIRE_EQ(0, r);
ATF_REQUIRE_EQ(2, params.rk_killed);
ATF_CHECK_EQ(-1, params.rk_fpid);
pid = waitpid(child2, &status, 0);
ATF_REQUIRE_EQ(child2, pid);
ATF_CHECK(WIFSIGNALED(status) && WTERMSIG(status) == SIGUSR2);
pid = waitpid(-1, &status, 0);
ATF_REQUIRE(pid > 0);
ATF_CHECK(pid != parent);
ATF_CHECK(pid != child1);
ATF_CHECK(pid != child2);
ATF_CHECK(WIFSIGNALED(status) && WTERMSIG(status) == SIGUSR2);
r = close(pip[0]);
ATF_REQUIRE_EQ(0, r);
}
Reparent a child of pdfork(2) to its reaper when the procdesc is closed. Unconditionally reparenting to PID 1 breaks the procctl(2) reaper functionality. Add a regression test for this case. Reviewed by: kib Approved by: re (gjb) MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D17589
2018-10-16 20:06:56 +00:00
ATF_TC_WITHOUT_HEAD(reaper_pdfork);
ATF_TC_BODY(reaper_pdfork, tc)
{
struct procctl_reaper_status st;
pid_t child, grandchild, parent, pid;
int pd, r, status;
parent = getpid();
r = procctl(P_PID, parent, PROC_REAP_ACQUIRE, NULL);
ATF_REQUIRE_EQ(r, 0);
child = pdfork(&pd, 0);
ATF_REQUIRE(child != -1);
if (child == 0) {
grandchild = pdfork(&pd, 0);
if (grandchild == -1)
_exit(1);
if (grandchild == 0)
pause();
_exit(0);
}
pid = waitpid(child, &status, 0);
ATF_REQUIRE_EQ(pid, child);
r = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
ATF_REQUIRE_EQ(r, 0);
r = procctl(P_PID, parent, PROC_REAP_STATUS, &st);
ATF_REQUIRE_EQ(r, 0);
ATF_CHECK((st.rs_flags & REAPER_STATUS_OWNED) != 0);
ATF_CHECK(st.rs_reaper == parent);
ATF_CHECK(st.rs_children == 1);
ATF_CHECK(st.rs_descendants == 1);
}
Add some tests for reaper functionality (in procctl()). MFC after: 1 week
2016-12-10 22:05:24 +00:00
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, reaper_wait_child_first);
ATF_TP_ADD_TC(tp, reaper_wait_grandchild_first);
Add tests for reaper receiving SIGCHLD (r309886). PR: 213928 MFC after: 2 weeks
2016-12-12 22:51:29 +00:00
ATF_TP_ADD_TC(tp, reaper_sigchld_child_first);
ATF_TP_ADD_TC(tp, reaper_sigchld_grandchild_first);
Add some tests for reaper functionality (in procctl()). MFC after: 1 week
2016-12-10 22:05:24 +00:00
ATF_TP_ADD_TC(tp, reaper_status);
ATF_TP_ADD_TC(tp, reaper_getpids);
ATF_TP_ADD_TC(tp, reaper_kill_badsig);
ATF_TP_ADD_TC(tp, reaper_kill_sigzero);
ATF_TP_ADD_TC(tp, reaper_kill_empty);
ATF_TP_ADD_TC(tp, reaper_kill_normal);
reaper: Make REAPER_KILL_SUBTREE actually work. MFC after: 2 weeks
2016-12-14 22:49:20 +00:00
ATF_TP_ADD_TC(tp, reaper_kill_subtree);
Reparent a child of pdfork(2) to its reaper when the procdesc is closed. Unconditionally reparenting to PID 1 breaks the procctl(2) reaper functionality. Add a regression test for this case. Reviewed by: kib Approved by: re (gjb) MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D17589
2018-10-16 20:06:56 +00:00
ATF_TP_ADD_TC(tp, reaper_pdfork);
Add some tests for reaper functionality (in procctl()). MFC after: 1 week
2016-12-10 22:05:24 +00:00
return (atf_no_error());
}
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