diff options
| author | kamil <kamil@NetBSD.org> | 2020-05-04 22:34:22 +0000 |
|---|---|---|
| committer | kamil <kamil@NetBSD.org> | 2020-05-04 22:34:22 +0000 |
| commit | 3a0fffc79aed09da97f2fd76706dc8c6ee2cb1d1 (patch) | |
| tree | 8c8f8d67fc94a64733c302bea235ff55119d890f /tests/lib/libc | |
| parent | 67a87e752605436d39cb842ada5236fae820ad12 (diff) | |
Move fork/vfork/posix_spawn tests out of t_ptrace_wait.c to t_ptrace_fork_wait.h
The same tests are now included with the preprocessor in t_ptrace_wait.c.
No functional change intended.
Diffstat (limited to 'tests/lib/libc')
| -rw-r--r-- | tests/lib/libc/sys/t_ptrace_fork_wait.h | 1730 | ||||
| -rw-r--r-- | tests/lib/libc/sys/t_ptrace_wait.c | 1720 |
2 files changed, 1734 insertions, 1716 deletions
diff --git a/tests/lib/libc/sys/t_ptrace_fork_wait.h b/tests/lib/libc/sys/t_ptrace_fork_wait.h new file mode 100644 index 00000000000..de4099b92ab --- /dev/null +++ b/tests/lib/libc/sys/t_ptrace_fork_wait.h @@ -0,0 +1,1730 @@ +/* $NetBSD: t_ptrace_fork_wait.h,v 1.1 2020/05/04 22:34:22 kamil Exp $ */ + +/*- + * Copyright (c) 2016, 2017, 2018, 2020 The NetBSD Foundation, Inc. + * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + + +static void +fork_body(const char *fn, bool trackspawn, bool trackfork, bool trackvfork, + bool trackvforkdone) +{ + const int exitval = 5; + const int exitval2 = 0; /* This matched exit status from /bin/echo */ + const int sigval = SIGSTOP; + pid_t child, child2 = 0, wpid; +#if defined(TWAIT_HAVE_STATUS) + int status; +#endif + ptrace_state_t state; + const int slen = sizeof(state); + ptrace_event_t event; + const int elen = sizeof(event); + + char * const arg[] = { __UNCONST("/bin/echo"), NULL }; + + DPRINTF("Before forking process PID=%d\n", getpid()); + SYSCALL_REQUIRE((child = fork()) != -1); + if (child == 0) { + DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); + FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); + + DPRINTF("Before raising %s from child\n", strsignal(sigval)); + FORKEE_ASSERT(raise(sigval) == 0); + + if (strcmp(fn, "spawn") == 0) { + FORKEE_ASSERT_EQ(posix_spawn(&child2, + arg[0], NULL, NULL, arg, NULL), 0); + } else { + if (strcmp(fn, "fork") == 0) { + FORKEE_ASSERT((child2 = fork()) != -1); + } else if (strcmp(fn, "vfork") == 0) { + FORKEE_ASSERT((child2 = vfork()) != -1); + } + + if (child2 == 0) + _exit(exitval2); + } + FORKEE_REQUIRE_SUCCESS + (wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + forkee_status_exited(status, exitval2); + + DPRINTF("Before exiting of the child process\n"); + _exit(exitval); + } + DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); + + DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, sigval); + + DPRINTF("Set 0%s%s%s%s in EVENT_MASK for the child %d\n", + trackspawn ? "|PTRACE_POSIX_SPAWN" : "", + trackfork ? "|PTRACE_FORK" : "", + trackvfork ? "|PTRACE_VFORK" : "", + trackvforkdone ? "|PTRACE_VFORK_DONE" : "", child); + event.pe_set_event = 0; + if (trackspawn) + event.pe_set_event |= PTRACE_POSIX_SPAWN; + if (trackfork) + event.pe_set_event |= PTRACE_FORK; + if (trackvfork) + event.pe_set_event |= PTRACE_VFORK; + if (trackvforkdone) + event.pe_set_event |= PTRACE_VFORK_DONE; + SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); + + DPRINTF("Before resuming the child process where it left off and " + "without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + +#if defined(TWAIT_HAVE_PID) + if ((trackspawn && strcmp(fn, "spawn") == 0) || + (trackfork && strcmp(fn, "fork") == 0) || + (trackvfork && strcmp(fn, "vfork") == 0)) { + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, + child); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), + child); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); + if (trackspawn && strcmp(fn, "spawn") == 0) { + ATF_REQUIRE_EQ( + state.pe_report_event & PTRACE_POSIX_SPAWN, + PTRACE_POSIX_SPAWN); + } + if (trackfork && strcmp(fn, "fork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, + PTRACE_FORK); + } + if (trackvfork && strcmp(fn, "vfork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, + PTRACE_VFORK); + } + + child2 = state.pe_other_pid; + DPRINTF("Reported ptrace event with forkee %d\n", child2); + + DPRINTF("Before calling %s() for the forkee %d of the child " + "%d\n", TWAIT_FNAME, child2, child); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), + child2); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1); + if (trackspawn && strcmp(fn, "spawn") == 0) { + ATF_REQUIRE_EQ( + state.pe_report_event & PTRACE_POSIX_SPAWN, + PTRACE_POSIX_SPAWN); + } + if (trackfork && strcmp(fn, "fork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, + PTRACE_FORK); + } + if (trackvfork && strcmp(fn, "vfork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, + PTRACE_VFORK); + } + + ATF_REQUIRE_EQ(state.pe_other_pid, child); + + DPRINTF("Before resuming the forkee process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE( + ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1); + + DPRINTF("Before resuming the child process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + } +#endif + + if (trackvforkdone && strcmp(fn, "vfork") == 0) { + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, + child); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); + ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); + + child2 = state.pe_other_pid; + DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", + child2); + + DPRINTF("Before resuming the child process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + } + +#if defined(TWAIT_HAVE_PID) + if ((trackspawn && strcmp(fn, "spawn") == 0) || + (trackfork && strcmp(fn, "fork") == 0) || + (trackvfork && strcmp(fn, "vfork") == 0)) { + DPRINTF("Before calling %s() for the forkee - expected exited" + "\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + validate_status_exited(status, exitval2); + + DPRINTF("Before calling %s() for the forkee - expected no " + "process\n", TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, + wpid = TWAIT_GENERIC(child2, &status, 0)); + } +#endif + + DPRINTF("Before calling %s() for the child - expected stopped " + "SIGCHLD\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, SIGCHLD); + + DPRINTF("Before resuming the child process where it left off and " + "without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + + DPRINTF("Before calling %s() for the child - expected exited\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_exited(status, exitval); + + DPRINTF("Before calling %s() for the child - expected no process\n", + TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); +} + +#define FORK_TEST(name,fun,tspawn,tfork,tvfork,tvforkdone) \ +ATF_TC(name); \ +ATF_TC_HEAD(name, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Verify " fun "() " \ + "called with 0%s%s%s%s in EVENT_MASK", \ + tspawn ? "|PTRACE_POSIX_SPAWN" : "", \ + tfork ? "|PTRACE_FORK" : "", \ + tvfork ? "|PTRACE_VFORK" : "", \ + tvforkdone ? "|PTRACE_VFORK_DONE" : ""); \ +} \ + \ +ATF_TC_BODY(name, tc) \ +{ \ + \ + fork_body(fun, tspawn, tfork, tvfork, tvforkdone); \ +} + +FORK_TEST(fork1, "fork", false, false, false, false) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(fork2, "fork", false, true, false, false) +FORK_TEST(fork3, "fork", false, false, true, false) +FORK_TEST(fork4, "fork", false, true, true, false) +#endif +FORK_TEST(fork5, "fork", false, false, false, true) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(fork6, "fork", false, true, false, true) +FORK_TEST(fork7, "fork", false, false, true, true) +FORK_TEST(fork8, "fork", false, true, true, true) +#endif +FORK_TEST(fork9, "fork", true, false, false, false) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(fork10, "fork", true, true, false, false) +FORK_TEST(fork11, "fork", true, false, true, false) +FORK_TEST(fork12, "fork", true, true, true, false) +#endif +FORK_TEST(fork13, "fork", true, false, false, true) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(fork14, "fork", true, true, false, true) +FORK_TEST(fork15, "fork", true, false, true, true) +FORK_TEST(fork16, "fork", true, true, true, true) +#endif + +FORK_TEST(vfork1, "vfork", false, false, false, false) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(vfork2, "vfork", false, true, false, false) +FORK_TEST(vfork3, "vfork", false, false, true, false) +FORK_TEST(vfork4, "vfork", false, true, true, false) +#endif +FORK_TEST(vfork5, "vfork", false, false, false, true) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(vfork6, "vfork", false, true, false, true) +FORK_TEST(vfork7, "vfork", false, false, true, true) +FORK_TEST(vfork8, "vfork", false, true, true, true) +#endif +FORK_TEST(vfork9, "vfork", true, false, false, false) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(vfork10, "vfork", true, true, false, false) +FORK_TEST(vfork11, "vfork", true, false, true, false) +FORK_TEST(vfork12, "vfork", true, true, true, false) +#endif +FORK_TEST(vfork13, "vfork", true, false, false, true) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(vfork14, "vfork", true, true, false, true) +FORK_TEST(vfork15, "vfork", true, false, true, true) +FORK_TEST(vfork16, "vfork", true, true, true, true) +#endif + +FORK_TEST(posix_spawn1, "spawn", false, false, false, false) +FORK_TEST(posix_spawn2, "spawn", false, true, false, false) +FORK_TEST(posix_spawn3, "spawn", false, false, true, false) +FORK_TEST(posix_spawn4, "spawn", false, true, true, false) +FORK_TEST(posix_spawn5, "spawn", false, false, false, true) +FORK_TEST(posix_spawn6, "spawn", false, true, false, true) +FORK_TEST(posix_spawn7, "spawn", false, false, true, true) +FORK_TEST(posix_spawn8, "spawn", false, true, true, true) +#if defined(TWAIT_HAVE_PID) +FORK_TEST(posix_spawn9, "spawn", true, false, false, false) +FORK_TEST(posix_spawn10, "spawn", true, true, false, false) +FORK_TEST(posix_spawn11, "spawn", true, false, true, false) +FORK_TEST(posix_spawn12, "spawn", true, true, true, false) +FORK_TEST(posix_spawn13, "spawn", true, false, false, true) +FORK_TEST(posix_spawn14, "spawn", true, true, false, true) +FORK_TEST(posix_spawn15, "spawn", true, false, true, true) +FORK_TEST(posix_spawn16, "spawn", true, true, true, true) +#endif + +/// ---------------------------------------------------------------------------- + +#if defined(TWAIT_HAVE_PID) +static void +unrelated_tracer_fork_body(const char *fn, bool trackspawn, bool trackfork, + bool trackvfork, bool trackvforkdone) +{ + const int sigval = SIGSTOP; + struct msg_fds parent_tracee, parent_tracer; + const int exitval = 10; + const int exitval2 = 0; /* This matched exit status from /bin/echo */ + pid_t tracee, tracer, wpid; + pid_t tracee2 = 0; + uint8_t msg = 0xde; /* dummy message for IPC based on pipe(2) */ +#if defined(TWAIT_HAVE_STATUS) + int status; +#endif + + struct ptrace_siginfo info; + ptrace_state_t state; + const int slen = sizeof(state); + ptrace_event_t event; + const int elen = sizeof(event); + + char * const arg[] = { __UNCONST("/bin/echo"), NULL }; + + DPRINTF("Spawn tracee\n"); + SYSCALL_REQUIRE(msg_open(&parent_tracee) == 0); + tracee = atf_utils_fork(); + if (tracee == 0) { + // Wait for parent to let us crash + CHILD_FROM_PARENT("exit tracee", parent_tracee, msg); + + DPRINTF("Before raising %s from child\n", strsignal(sigval)); + FORKEE_ASSERT(raise(sigval) == 0); + + if (strcmp(fn, "spawn") == 0) { + FORKEE_ASSERT_EQ(posix_spawn(&tracee2, + arg[0], NULL, NULL, arg, NULL), 0); + } else { + if (strcmp(fn, "fork") == 0) { + FORKEE_ASSERT((tracee2 = fork()) != -1); + } else if (strcmp(fn, "vfork") == 0) { + FORKEE_ASSERT((tracee2 = vfork()) != -1); + } + + if (tracee2 == 0) + _exit(exitval2); + } + FORKEE_REQUIRE_SUCCESS + (wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); + + forkee_status_exited(status, exitval2); + + DPRINTF("Before exiting of the child process\n"); + _exit(exitval); + } + + DPRINTF("Spawn debugger\n"); + SYSCALL_REQUIRE(msg_open(&parent_tracer) == 0); + tracer = atf_utils_fork(); + if (tracer == 0) { + /* Fork again and drop parent to reattach to PID 1 */ + tracer = atf_utils_fork(); + if (tracer != 0) + _exit(exitval); + + DPRINTF("Before calling PT_ATTACH from tracee %d\n", getpid()); + FORKEE_ASSERT(ptrace(PT_ATTACH, tracee, NULL, 0) != -1); + + /* Wait for tracee and assert that it was stopped w/ SIGSTOP */ + FORKEE_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + forkee_status_stopped(status, SIGSTOP); + + DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " + "traced process\n"); + SYSCALL_REQUIRE( + ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); + + DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); + DPRINTF("Signal properties: si_signo=%#x si_code=%#x " + "si_errno=%#x\n", info.psi_siginfo.si_signo, + info.psi_siginfo.si_code, info.psi_siginfo.si_errno); + + FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, SIGSTOP); + FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_USER); + + /* Resume tracee with PT_CONTINUE */ + FORKEE_ASSERT(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); + + /* Inform parent that tracer has attached to tracee */ + CHILD_TO_PARENT("tracer ready", parent_tracer, msg); + + /* Wait for parent to tell use that tracee should have exited */ + CHILD_FROM_PARENT("wait for tracee exit", parent_tracer, msg); + + /* Wait for tracee and assert that it exited */ + FORKEE_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + forkee_status_stopped(status, sigval); + + DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " + "traced process\n"); + SYSCALL_REQUIRE( + ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); + + DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); + DPRINTF("Signal properties: si_signo=%#x si_code=%#x " + "si_errno=%#x\n", info.psi_siginfo.si_signo, + info.psi_siginfo.si_code, info.psi_siginfo.si_errno); + + FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, sigval); + FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_LWP); + + DPRINTF("Set 0%s%s%s%s in EVENT_MASK for the child %d\n", + trackspawn ? "|PTRACE_POSIX_SPAWN" : "", + trackfork ? "|PTRACE_FORK" : "", + trackvfork ? "|PTRACE_VFORK" : "", + trackvforkdone ? "|PTRACE_VFORK_DONE" : "", tracee); + event.pe_set_event = 0; + if (trackspawn) + event.pe_set_event |= PTRACE_POSIX_SPAWN; + if (trackfork) + event.pe_set_event |= PTRACE_FORK; + if (trackvfork) + event.pe_set_event |= PTRACE_VFORK; + if (trackvforkdone) + event.pe_set_event |= PTRACE_VFORK_DONE; + SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, tracee, &event, elen) + != -1); + + DPRINTF("Before resuming the child process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); + + if ((trackspawn && strcmp(fn, "spawn") == 0) || + (trackfork && strcmp(fn, "fork") == 0) || + (trackvfork && strcmp(fn, "vfork") == 0)) { + DPRINTF("Before calling %s() for the tracee %d\n", TWAIT_FNAME, + tracee); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), + tracee); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); + if (trackspawn && strcmp(fn, "spawn") == 0) { + ATF_REQUIRE_EQ( + state.pe_report_event & PTRACE_POSIX_SPAWN, + PTRACE_POSIX_SPAWN); + } + if (trackfork && strcmp(fn, "fork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, + PTRACE_FORK); + } + if (trackvfork && strcmp(fn, "vfork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, + PTRACE_VFORK); + } + + tracee2 = state.pe_other_pid; + DPRINTF("Reported ptrace event with forkee %d\n", tracee2); + + DPRINTF("Before calling %s() for the forkee %d of the tracee " + "%d\n", TWAIT_FNAME, tracee2, tracee); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee2, &status, 0), + tracee2); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, tracee2, &state, slen) != -1); + if (trackspawn && strcmp(fn, "spawn") == 0) { + ATF_REQUIRE_EQ( + state.pe_report_event & PTRACE_POSIX_SPAWN, + PTRACE_POSIX_SPAWN); + } + if (trackfork && strcmp(fn, "fork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, + PTRACE_FORK); + } + if (trackvfork && strcmp(fn, "vfork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, + PTRACE_VFORK); + } + + ATF_REQUIRE_EQ(state.pe_other_pid, tracee); + + DPRINTF("Before resuming the forkee process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE( + ptrace(PT_CONTINUE, tracee2, (void *)1, 0) != -1); + + DPRINTF("Before resuming the tracee process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); + } + + if (trackvforkdone && strcmp(fn, "vfork") == 0) { + DPRINTF("Before calling %s() for the tracee %d\n", TWAIT_FNAME, + tracee); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); + ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); + + tracee2 = state.pe_other_pid; + DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", + tracee2); + + DPRINTF("Before resuming the tracee process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); + } + + + if ((trackspawn && strcmp(fn, "spawn") == 0) || + (trackfork && strcmp(fn, "fork") == 0) || + (trackvfork && strcmp(fn, "vfork") == 0)) { + DPRINTF("Before calling %s() for the forkee - expected exited" + "\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); + + validate_status_exited(status, exitval2); + + DPRINTF("Before calling %s() for the forkee - expected no " + "process\n", TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, + wpid = TWAIT_GENERIC(tracee2, &status, 0)); + } + + DPRINTF("Before calling %s() for the tracee - expected stopped " + "SIGCHLD\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + validate_status_stopped(status, SIGCHLD); + + DPRINTF("Before resuming the tracee process where it left off and " + "without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); + + DPRINTF("Before calling %s() for the tracee - expected exited\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + validate_status_exited(status, exitval); + + /* Inform parent that tracer is exiting normally */ + CHILD_TO_PARENT("tracer done", parent_tracer, msg); + + DPRINTF("Before exiting of the tracer process\n"); + _exit(0 /* collect by initproc */); + } + + DPRINTF("Wait for the tracer process (direct child) to exit " + "calling %s()\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracer, &status, 0), tracer); + + validate_status_exited(status, exitval); + + DPRINTF("Wait for the non-exited tracee process with %s()\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, NULL, WNOHANG), 0); + + DPRINTF("Wait for the tracer to attach to the tracee\n"); + PARENT_FROM_CHILD("tracer ready", parent_tracer, msg); + + DPRINTF("Resume the tracee and let it crash\n"); + PARENT_TO_CHILD("exit tracee", parent_tracee, msg); + + DPRINTF("Resume the tracer and let it detect crashed tracee\n"); + PARENT_TO_CHILD("Message 2", parent_tracer, msg); + + DPRINTF("Wait for tracee to finish its job and exit - calling %s()\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + validate_status_exited(status, exitval); + + DPRINTF("Await normal exit of tracer\n"); + PARENT_FROM_CHILD("tracer done", parent_tracer, msg); + + msg_close(&parent_tracer); + msg_close(&parent_tracee); +} + +#define UNRELATED_TRACER_FORK_TEST(name,fun,tspawn,tfork,tvfork,tvforkdone)\ +ATF_TC(name); \ +ATF_TC_HEAD(name, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Verify " fun "() " \ + "called with 0%s%s%s%s in EVENT_MASK", \ + tspawn ? "|PTRACE_POSIX_SPAWN" : "", \ + tfork ? "|PTRACE_FORK" : "", \ + tvfork ? "|PTRACE_VFORK" : "", \ + tvforkdone ? "|PTRACE_VFORK_DONE" : ""); \ +} \ + \ +ATF_TC_BODY(name, tc) \ +{ \ + \ + unrelated_tracer_fork_body(fun, tspawn, tfork, tvfork, \ + tvforkdone); \ +} + +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork1, "fork", false, false, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork2, "fork", false, true, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork3, "fork", false, false, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork4, "fork", false, true, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork5, "fork", false, false, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork6, "fork", false, true, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork7, "fork", false, false, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork8, "fork", false, true, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork9, "fork", true, false, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork10, "fork", true, true, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork11, "fork", true, false, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork12, "fork", true, true, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork13, "fork", true, false, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork14, "fork", true, true, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork15, "fork", true, false, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork16, "fork", true, true, true, true) + +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork1, "vfork", false, false, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork2, "vfork", false, true, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork3, "vfork", false, false, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork4, "vfork", false, true, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork5, "vfork", false, false, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork6, "vfork", false, true, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork7, "vfork", false, false, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork8, "vfork", false, true, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork9, "vfork", true, false, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork10, "vfork", true, true, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork11, "vfork", true, false, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork12, "vfork", true, true, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork13, "vfork", true, false, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork14, "vfork", true, true, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork15, "vfork", true, false, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork16, "vfork", true, true, true, true) + +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn1, "spawn", false, false, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn2, "spawn", false, true, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn3, "spawn", false, false, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn4, "spawn", false, true, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn5, "spawn", false, false, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn6, "spawn", false, true, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn7, "spawn", false, false, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn8, "spawn", false, true, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn9, "spawn", true, false, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn10, "spawn", true, true, false, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn11, "spawn", true, false, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn12, "spawn", true, true, true, false) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn13, "spawn", true, false, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn14, "spawn", true, true, false, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn15, "spawn", true, false, true, true) +UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn16, "spawn", true, true, true, true) +#endif + +/// ---------------------------------------------------------------------------- + +#if defined(TWAIT_HAVE_PID) +static void +fork_detach_forker_body(const char *fn, bool kill_process) +{ + const int exitval = 5; + const int exitval2 = 0; /* Matches exit value from /bin/echo */ + const int sigval = SIGSTOP; + pid_t child, child2 = 0, wpid; +#if defined(TWAIT_HAVE_STATUS) + int status; +#endif + ptrace_state_t state; + const int slen = sizeof(state); + ptrace_event_t event; + const int elen = sizeof(event); + + int op; + + char * const arg[] = { __UNCONST("/bin/echo"), NULL }; + + DPRINTF("Before forking process PID=%d\n", getpid()); + SYSCALL_REQUIRE((child = fork()) != -1); + if (child == 0) { + DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); + FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); + + DPRINTF("Before raising %s from child\n", strsignal(sigval)); + FORKEE_ASSERT(raise(sigval) == 0); + + if (strcmp(fn, "spawn") == 0) { + FORKEE_ASSERT_EQ(posix_spawn(&child2, + arg[0], NULL, NULL, arg, NULL), 0); + } else { + if (strcmp(fn, "fork") == 0) { + FORKEE_ASSERT((child2 = fork()) != -1); + } else { + FORKEE_ASSERT((child2 = vfork()) != -1); + } + + if (child2 == 0) + _exit(exitval2); + } + + FORKEE_REQUIRE_SUCCESS + (wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + forkee_status_exited(status, exitval2); + + DPRINTF("Before exiting of the child process\n"); + _exit(exitval); + } + DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); + + DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, sigval); + + DPRINTF("Set EVENT_MASK for the child %d\n", child); + event.pe_set_event = PTRACE_POSIX_SPAWN | PTRACE_FORK | PTRACE_VFORK + | PTRACE_VFORK_DONE; + SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); + + DPRINTF("Before resuming the child process where it left off and " + "without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, child); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); + + if (strcmp(fn, "spawn") == 0) + op = PTRACE_POSIX_SPAWN; + else if (strcmp(fn, "fork") == 0) + op = PTRACE_FORK; + else + op = PTRACE_VFORK; + + ATF_REQUIRE_EQ(state.pe_report_event & op, op); + + child2 = state.pe_other_pid; + DPRINTF("Reported ptrace event with forkee %d\n", child2); + + if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || + strcmp(fn, "vfork") == 0) + op = kill_process ? PT_KILL : PT_DETACH; + else + op = PT_CONTINUE; + SYSCALL_REQUIRE(ptrace(op, child, (void *)1, 0) != -1); + + DPRINTF("Before calling %s() for the forkee %d of the child %d\n", + TWAIT_FNAME, child2, child); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1); + if (strcmp(fn, "spawn") == 0) + op = PTRACE_POSIX_SPAWN; + else if (strcmp(fn, "fork") == 0) + op = PTRACE_FORK; + else + op = PTRACE_VFORK; + + ATF_REQUIRE_EQ(state.pe_report_event & op, op); + ATF_REQUIRE_EQ(state.pe_other_pid, child); + + DPRINTF("Before resuming the forkee process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE( + ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1); + + if (strcmp(fn, "vforkdone") == 0) { + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, + child); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); + ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); + + child2 = state.pe_other_pid; + DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", + child2); + + op = kill_process ? PT_KILL : PT_DETACH; + DPRINTF("Before resuming the child process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(op, child, (void *)1, 0) != -1); + } + + DPRINTF("Before calling %s() for the forkee - expected exited\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + validate_status_exited(status, exitval2); + + DPRINTF("Before calling %s() for the forkee - expected no process\n", + TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child2, &status, 0)); + + DPRINTF("Before calling %s() for the forkee - expected exited\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + if (kill_process) { + validate_status_signaled(status, SIGKILL, 0); + } else { + validate_status_exited(status, exitval); + } + + DPRINTF("Before calling %s() for the child - expected no process\n", + TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); +} + +#define FORK_DETACH_FORKER(name,event,kprocess) \ +ATF_TC(name); \ +ATF_TC_HEAD(name, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Verify %s " event, \ + kprocess ? "killed" : "detached"); \ +} \ + \ +ATF_TC_BODY(name, tc) \ +{ \ + \ + fork_detach_forker_body(event, kprocess); \ +} + +FORK_DETACH_FORKER(posix_spawn_detach_spawner, "spawn", false) +FORK_DETACH_FORKER(fork_detach_forker, "fork", false) +FORK_DETACH_FORKER(vfork_detach_vforker, "vfork", false) +FORK_DETACH_FORKER(vfork_detach_vforkerdone, "vforkdone", false) + +FORK_DETACH_FORKER(posix_spawn_kill_spawner, "spawn", true) +FORK_DETACH_FORKER(fork_kill_forker, "fork", true) +FORK_DETACH_FORKER(vfork_kill_vforker, "vfork", true) +FORK_DETACH_FORKER(vfork_kill_vforkerdone, "vforkdone", true) +#endif + +/// ---------------------------------------------------------------------------- + +#if defined(TWAIT_HAVE_PID) +static void +unrelated_tracer_fork_detach_forker_body(const char *fn, bool kill_process) +{ + const int sigval = SIGSTOP; + struct msg_fds parent_tracee, parent_tracer; + const int exitval = 10; + const int exitval2 = 0; /* This matched exit status from /bin/echo */ + pid_t tracee, tracer, wpid; + pid_t tracee2 = 0; + uint8_t msg = 0xde; /* dummy message for IPC based on pipe(2) */ +#if defined(TWAIT_HAVE_STATUS) + int status; +#endif + int op; + + struct ptrace_siginfo info; + ptrace_state_t state; + const int slen = sizeof(state); + ptrace_event_t event; + const int elen = sizeof(event); + + char * const arg[] = { __UNCONST("/bin/echo"), NULL }; + + DPRINTF("Spawn tracee\n"); + SYSCALL_REQUIRE(msg_open(&parent_tracee) == 0); + tracee = atf_utils_fork(); + if (tracee == 0) { + // Wait for parent to let us crash + CHILD_FROM_PARENT("exit tracee", parent_tracee, msg); + + DPRINTF("Before raising %s from child\n", strsignal(sigval)); + FORKEE_ASSERT(raise(sigval) == 0); + + if (strcmp(fn, "spawn") == 0) { + FORKEE_ASSERT_EQ(posix_spawn(&tracee2, + arg[0], NULL, NULL, arg, NULL), 0); + } else { + if (strcmp(fn, "fork") == 0) { + FORKEE_ASSERT((tracee2 = fork()) != -1); + } else { + FORKEE_ASSERT((tracee2 = vfork()) != -1); + } + + if (tracee2 == 0) + _exit(exitval2); + } + + FORKEE_REQUIRE_SUCCESS + (wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); + + forkee_status_exited(status, exitval2); + + DPRINTF("Before exiting of the child process\n"); + _exit(exitval); + } + + DPRINTF("Spawn debugger\n"); + SYSCALL_REQUIRE(msg_open(&parent_tracer) == 0); + tracer = atf_utils_fork(); + if (tracer == 0) { + /* Fork again and drop parent to reattach to PID 1 */ + tracer = atf_utils_fork(); + if (tracer != 0) + _exit(exitval); + + DPRINTF("Before calling PT_ATTACH from tracee %d\n", getpid()); + FORKEE_ASSERT(ptrace(PT_ATTACH, tracee, NULL, 0) != -1); + + /* Wait for tracee and assert that it was stopped w/ SIGSTOP */ + FORKEE_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + forkee_status_stopped(status, SIGSTOP); + + DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " + "traced process\n"); + SYSCALL_REQUIRE( + ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); + + DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); + DPRINTF("Signal properties: si_signo=%#x si_code=%#x " + "si_errno=%#x\n", info.psi_siginfo.si_signo, + info.psi_siginfo.si_code, info.psi_siginfo.si_errno); + + FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, SIGSTOP); + FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_USER); + + /* Resume tracee with PT_CONTINUE */ + FORKEE_ASSERT(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); + + /* Inform parent that tracer has attached to tracee */ + CHILD_TO_PARENT("tracer ready", parent_tracer, msg); + + /* Wait for parent to tell use that tracee should have exited */ + CHILD_FROM_PARENT("wait for tracee exit", parent_tracer, msg); + + /* Wait for tracee and assert that it exited */ + FORKEE_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + forkee_status_stopped(status, sigval); + + DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " + "traced process\n"); + SYSCALL_REQUIRE( + ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); + + DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); + DPRINTF("Signal properties: si_signo=%#x si_code=%#x " + "si_errno=%#x\n", info.psi_siginfo.si_signo, + info.psi_siginfo.si_code, info.psi_siginfo.si_errno); + + FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, sigval); + FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_LWP); + + DPRINTF("Set EVENT_MASK for the child %d\n", tracee); + event.pe_set_event = PTRACE_POSIX_SPAWN | PTRACE_FORK | PTRACE_VFORK + | PTRACE_VFORK_DONE; + SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, tracee, &event, elen) != -1); + + DPRINTF("Before resuming the child process where it left off and " + "without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); + + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, tracee); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); + + if (strcmp(fn, "spawn") == 0) + op = PTRACE_POSIX_SPAWN; + else if (strcmp(fn, "fork") == 0) + op = PTRACE_FORK; + else + op = PTRACE_VFORK; + + ATF_REQUIRE_EQ(state.pe_report_event & op, op); + + tracee2 = state.pe_other_pid; + DPRINTF("Reported ptrace event with forkee %d\n", tracee2); + if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || + strcmp(fn, "vfork") == 0) + op = kill_process ? PT_KILL : PT_DETACH; + else + op = PT_CONTINUE; + SYSCALL_REQUIRE(ptrace(op, tracee, (void *)1, 0) != -1); + + DPRINTF("Before calling %s() for the forkee %d of the tracee %d\n", + TWAIT_FNAME, tracee2, tracee); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, tracee2, &state, slen) != -1); + if (strcmp(fn, "spawn") == 0) + op = PTRACE_POSIX_SPAWN; + else if (strcmp(fn, "fork") == 0) + op = PTRACE_FORK; + else + op = PTRACE_VFORK; + + ATF_REQUIRE_EQ(state.pe_report_event & op, op); + ATF_REQUIRE_EQ(state.pe_other_pid, tracee); + + DPRINTF("Before resuming the forkee process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE( + ptrace(PT_CONTINUE, tracee2, (void *)1, 0) != -1); + + if (strcmp(fn, "vforkdone") == 0) { + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, + tracee); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + validate_status_stopped(status, SIGTRAP); + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); + ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); + + tracee2 = state.pe_other_pid; + DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", + tracee2); + + op = kill_process ? PT_KILL : PT_DETACH; + DPRINTF("Before resuming the child process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(op, tracee, (void *)1, 0) != -1); + } + + DPRINTF("Before calling %s() for the forkee - expected exited\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); + + validate_status_exited(status, exitval2); + + DPRINTF("Before calling %s() for the forkee - expected no process\n", + TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(tracee2, &status, 0)); + + if (kill_process) { + DPRINTF("Before calling %s() for the forkee - expected signaled\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + validate_status_signaled(status, SIGKILL, 0); + } + + /* Inform parent that tracer is exiting normally */ + CHILD_TO_PARENT("tracer done", parent_tracer, msg); + + DPRINTF("Before exiting of the tracer process\n"); + _exit(0 /* collect by initproc */); + } + + DPRINTF("Wait for the tracer process (direct child) to exit " + "calling %s()\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracer, &status, 0), tracer); + + validate_status_exited(status, exitval); + + DPRINTF("Wait for the non-exited tracee process with %s()\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(tracee, NULL, WNOHANG), 0); + + DPRINTF("Wait for the tracer to attach to the tracee\n"); + PARENT_FROM_CHILD("tracer ready", parent_tracer, msg); + + DPRINTF("Resume the tracee and let it crash\n"); + PARENT_TO_CHILD("exit tracee", parent_tracee, msg); + + DPRINTF("Resume the tracer and let it detect crashed tracee\n"); + PARENT_TO_CHILD("Message 2", parent_tracer, msg); + + DPRINTF("Wait for tracee to finish its job and exit - calling %s()\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); + + if (kill_process) { + validate_status_signaled(status, SIGKILL, 0); + } else { + validate_status_exited(status, exitval); + } + + DPRINTF("Await normal exit of tracer\n"); + PARENT_FROM_CHILD("tracer done", parent_tracer, msg); + + msg_close(&parent_tracer); + msg_close(&parent_tracee); +} + +#define UNRELATED_TRACER_FORK_DETACH_FORKER(name,event,kprocess) \ +ATF_TC(name); \ +ATF_TC_HEAD(name, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Verify %s " event, \ + kprocess ? "killed" : "detached"); \ +} \ + \ +ATF_TC_BODY(name, tc) \ +{ \ + \ + unrelated_tracer_fork_detach_forker_body(event, kprocess); \ +} + +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_posix_spawn_detach_spawner, "spawn", false) +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_fork_detach_forker, "fork", false) +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_detach_vforker, "vfork", false) +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_detach_vforkerdone, "vforkdone", false) + +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_posix_spawn_kill_spawner, "spawn", true) +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_fork_kill_forker, "fork", true) +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_kill_vforker, "vfork", true) +UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_kill_vforkerdone, "vforkdone", true) +#endif + +/// ---------------------------------------------------------------------------- + +static void +traceme_vfork_fork_body(pid_t (*fn)(void)) +{ + const int exitval = 5; + const int exitval2 = 15; + pid_t child, child2 = 0, wpid; +#if defined(TWAIT_HAVE_STATUS) + int status; +#endif + + DPRINTF("Before forking process PID=%d\n", getpid()); + SYSCALL_REQUIRE((child = vfork()) != -1); + if (child == 0) { + DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); + FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); + + FORKEE_ASSERT((child2 = (fn)()) != -1); + + if (child2 == 0) + _exit(exitval2); + + FORKEE_REQUIRE_SUCCESS + (wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + forkee_status_exited(status, exitval2); + + DPRINTF("Before exiting of the child process\n"); + _exit(exitval); + } + DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); + + DPRINTF("Before calling %s() for the child - expected exited\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_exited(status, exitval); + + DPRINTF("Before calling %s() for the child - expected no process\n", + TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); +} + +#define TRACEME_VFORK_FORK_TEST(name,fun) \ +ATF_TC(name); \ +ATF_TC_HEAD(name, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Verify " #fun "(2) " \ + "called from vfork(2)ed child"); \ +} \ + \ +ATF_TC_BODY(name, tc) \ +{ \ + \ + traceme_vfork_fork_body(fun); \ +} + +TRACEME_VFORK_FORK_TEST(traceme_vfork_fork, fork) +TRACEME_VFORK_FORK_TEST(traceme_vfork_vfork, vfork) + +/// ---------------------------------------------------------------------------- + +#if defined(TWAIT_HAVE_PID) +static void +fork2_body(const char *fn, bool masked, bool ignored) +{ + const int exitval = 5; + const int exitval2 = 0; /* Match exit status from /bin/echo */ + const int sigval = SIGSTOP; + pid_t child, child2 = 0, wpid; +#if defined(TWAIT_HAVE_STATUS) + int status; +#endif + ptrace_state_t state; + const int slen = sizeof(state); + ptrace_event_t event; + const int elen = sizeof(event); + struct sigaction sa; + struct ptrace_siginfo info; + sigset_t intmask; + struct kinfo_proc2 kp; + size_t len = sizeof(kp); + + int name[6]; + const size_t namelen = __arraycount(name); + ki_sigset_t kp_sigmask; + ki_sigset_t kp_sigignore; + + char * const arg[] = { __UNCONST("/bin/echo"), NULL }; + + DPRINTF("Before forking process PID=%d\n", getpid()); + SYSCALL_REQUIRE((child = fork()) != -1); + if (child == 0) { + DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); + FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); + + if (masked) { + sigemptyset(&intmask); + sigaddset(&intmask, SIGTRAP); + sigprocmask(SIG_BLOCK, &intmask, NULL); + } + + if (ignored) { + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_IGN; + sigemptyset(&sa.sa_mask); + FORKEE_ASSERT(sigaction(SIGTRAP, &sa, NULL) != -1); + } + + DPRINTF("Before raising %s from child\n", strsignal(sigval)); + FORKEE_ASSERT(raise(sigval) == 0); + + if (strcmp(fn, "spawn") == 0) { + FORKEE_ASSERT_EQ(posix_spawn(&child2, + arg[0], NULL, NULL, arg, NULL), 0); + } else { + if (strcmp(fn, "fork") == 0) { + FORKEE_ASSERT((child2 = fork()) != -1); + } else { + FORKEE_ASSERT((child2 = vfork()) != -1); + } + if (child2 == 0) + _exit(exitval2); + } + + FORKEE_REQUIRE_SUCCESS + (wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + forkee_status_exited(status, exitval2); + + DPRINTF("Before exiting of the child process\n"); + _exit(exitval); + } + DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); + + DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, sigval); + + DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for child\n"); + SYSCALL_REQUIRE( + ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1); + + DPRINTF("Before checking siginfo_t\n"); + ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, sigval); + ATF_REQUIRE_EQ(info.psi_siginfo.si_code, SI_LWP); + + name[0] = CTL_KERN, + name[1] = KERN_PROC2, + name[2] = KERN_PROC_PID; + name[3] = child; + name[4] = sizeof(kp); + name[5] = 1; + + FORKEE_ASSERT_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); + + if (masked) + kp_sigmask = kp.p_sigmask; + + if (ignored) + kp_sigignore = kp.p_sigignore; + + DPRINTF("Set 0%s%s%s%s in EVENT_MASK for the child %d\n", + strcmp(fn, "spawn") == 0 ? "|PTRACE_POSIX_SPAWN" : "", + strcmp(fn, "fork") == 0 ? "|PTRACE_FORK" : "", + strcmp(fn, "vfork") == 0 ? "|PTRACE_VFORK" : "", + strcmp(fn, "vforkdone") == 0 ? "|PTRACE_VFORK_DONE" : "", child); + event.pe_set_event = 0; + if (strcmp(fn, "spawn") == 0) + event.pe_set_event |= PTRACE_POSIX_SPAWN; + if (strcmp(fn, "fork") == 0) + event.pe_set_event |= PTRACE_FORK; + if (strcmp(fn, "vfork") == 0) + event.pe_set_event |= PTRACE_VFORK; + if (strcmp(fn, "vforkdone") == 0) + event.pe_set_event |= PTRACE_VFORK_DONE; + SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); + + DPRINTF("Before resuming the child process where it left off and " + "without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + + if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || + strcmp(fn, "vfork") == 0) { + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, + child); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), + child); + + validate_status_stopped(status, SIGTRAP); + + ATF_REQUIRE_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); + + if (masked) { + DPRINTF("kp_sigmask=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp_sigmask.__bits[0], kp_sigmask.__bits[1], + kp_sigmask.__bits[2], kp_sigmask.__bits[3]); + + DPRINTF("kp.p_sigmask=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp.p_sigmask.__bits[0], kp.p_sigmask.__bits[1], + kp.p_sigmask.__bits[2], kp.p_sigmask.__bits[3]); + + ATF_REQUIRE(!memcmp(&kp_sigmask, &kp.p_sigmask, + sizeof(kp_sigmask))); + } + + if (ignored) { + DPRINTF("kp_sigignore=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp_sigignore.__bits[0], kp_sigignore.__bits[1], + kp_sigignore.__bits[2], kp_sigignore.__bits[3]); + + DPRINTF("kp.p_sigignore=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp.p_sigignore.__bits[0], kp.p_sigignore.__bits[1], + kp.p_sigignore.__bits[2], kp.p_sigignore.__bits[3]); + + ATF_REQUIRE(!memcmp(&kp_sigignore, &kp.p_sigignore, + sizeof(kp_sigignore))); + } + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); + if (strcmp(fn, "spawn") == 0) { + ATF_REQUIRE_EQ( + state.pe_report_event & PTRACE_POSIX_SPAWN, + PTRACE_POSIX_SPAWN); + } + if (strcmp(fn, "fork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, + PTRACE_FORK); + } + if (strcmp(fn, "vfork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, + PTRACE_VFORK); + } + + child2 = state.pe_other_pid; + DPRINTF("Reported ptrace event with forkee %d\n", child2); + + DPRINTF("Before calling %s() for the forkee %d of the child " + "%d\n", TWAIT_FNAME, child2, child); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), + child2); + + validate_status_stopped(status, SIGTRAP); + + name[3] = child2; + ATF_REQUIRE_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); + + if (masked) { + DPRINTF("kp_sigmask=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp_sigmask.__bits[0], kp_sigmask.__bits[1], + kp_sigmask.__bits[2], kp_sigmask.__bits[3]); + + DPRINTF("kp.p_sigmask=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp.p_sigmask.__bits[0], kp.p_sigmask.__bits[1], + kp.p_sigmask.__bits[2], kp.p_sigmask.__bits[3]); + + ATF_REQUIRE(!memcmp(&kp_sigmask, &kp.p_sigmask, + sizeof(kp_sigmask))); + } + + if (ignored) { + DPRINTF("kp_sigignore=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp_sigignore.__bits[0], kp_sigignore.__bits[1], + kp_sigignore.__bits[2], kp_sigignore.__bits[3]); + + DPRINTF("kp.p_sigignore=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp.p_sigignore.__bits[0], kp.p_sigignore.__bits[1], + kp.p_sigignore.__bits[2], kp.p_sigignore.__bits[3]); + + ATF_REQUIRE(!memcmp(&kp_sigignore, &kp.p_sigignore, + sizeof(kp_sigignore))); + } + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1); + if (strcmp(fn, "spawn") == 0) { + ATF_REQUIRE_EQ( + state.pe_report_event & PTRACE_POSIX_SPAWN, + PTRACE_POSIX_SPAWN); + } + if (strcmp(fn, "fork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, + PTRACE_FORK); + } + if (strcmp(fn, "vfork") == 0) { + ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, + PTRACE_VFORK); + } + + ATF_REQUIRE_EQ(state.pe_other_pid, child); + + DPRINTF("Before resuming the forkee process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE( + ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1); + + DPRINTF("Before resuming the child process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + } + + if (strcmp(fn, "vforkdone") == 0) { + DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, + child); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, SIGTRAP); + + name[3] = child; + ATF_REQUIRE_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); + + /* + * SIGCHLD is now pending in the signal queue and + * the kernel presents it to userland as a masked signal. + */ + sigdelset((sigset_t *)&kp.p_sigmask, SIGCHLD); + + if (masked) { + DPRINTF("kp_sigmask=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp_sigmask.__bits[0], kp_sigmask.__bits[1], + kp_sigmask.__bits[2], kp_sigmask.__bits[3]); + + DPRINTF("kp.p_sigmask=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp.p_sigmask.__bits[0], kp.p_sigmask.__bits[1], + kp.p_sigmask.__bits[2], kp.p_sigmask.__bits[3]); + + ATF_REQUIRE(!memcmp(&kp_sigmask, &kp.p_sigmask, + sizeof(kp_sigmask))); + } + + if (ignored) { + DPRINTF("kp_sigignore=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp_sigignore.__bits[0], kp_sigignore.__bits[1], + kp_sigignore.__bits[2], kp_sigignore.__bits[3]); + + DPRINTF("kp.p_sigignore=" + "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" + PRIx32 "\n", + kp.p_sigignore.__bits[0], kp.p_sigignore.__bits[1], + kp.p_sigignore.__bits[2], kp.p_sigignore.__bits[3]); + + ATF_REQUIRE(!memcmp(&kp_sigignore, &kp.p_sigignore, + sizeof(kp_sigignore))); + } + + SYSCALL_REQUIRE( + ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); + ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); + + child2 = state.pe_other_pid; + DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", + child2); + + DPRINTF("Before resuming the child process where it left off " + "and without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + } + + if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || + strcmp(fn, "vfork") == 0) { + DPRINTF("Before calling %s() for the forkee - expected exited" + "\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS( + wpid = TWAIT_GENERIC(child2, &status, 0), child2); + + validate_status_exited(status, exitval2); + + DPRINTF("Before calling %s() for the forkee - expected no " + "process\n", TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, + wpid = TWAIT_GENERIC(child2, &status, 0)); + } + + DPRINTF("Before calling %s() for the child - expected stopped " + "SIGCHLD\n", TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_stopped(status, SIGCHLD); + + DPRINTF("Before resuming the child process where it left off and " + "without signal to be sent\n"); + SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); + + DPRINTF("Before calling %s() for the child - expected exited\n", + TWAIT_FNAME); + TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); + + validate_status_exited(status, exitval); + + DPRINTF("Before calling %s() for the child - expected no process\n", + TWAIT_FNAME); + TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); +} + +#define FORK2_TEST(name,fn,masked,ignored) \ +ATF_TC(name); \ +ATF_TC_HEAD(name, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Verify that " fn " is caught " \ + "regardless of signal %s%s", \ + masked ? "masked" : "", ignored ? "ignored" : ""); \ +} \ + \ +ATF_TC_BODY(name, tc) \ +{ \ + \ + fork2_body(fn, masked, ignored); \ +} + +FORK2_TEST(posix_spawn_singalmasked, "spawn", true, false) +FORK2_TEST(posix_spawn_singalignored, "spawn", false, true) +FORK2_TEST(fork_singalmasked, "fork", true, false) +FORK2_TEST(fork_singalignored, "fork", false, true) +FORK2_TEST(vfork_singalmasked, "vfork", true, false) +FORK2_TEST(vfork_singalignored, "vfork", false, true) +FORK2_TEST(vforkdone_singalmasked, "vforkdone", true, false) +FORK2_TEST(vforkdone_singalignored, "vforkdone", false, true) +#endif + +#define ATF_TP_ADD_TCS_PTRACE_WAIT_FORK() \ + ATF_TP_ADD_TC(tp, fork1); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork2); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork3); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork4); \ + ATF_TP_ADD_TC(tp, fork5); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork6); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork7); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork8); \ + ATF_TP_ADD_TC(tp, fork9); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork10); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork11); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork12); \ + ATF_TP_ADD_TC(tp, fork13); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork14); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork15); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork16); \ + ATF_TP_ADD_TC(tp, vfork1); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork2); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork3); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork4); \ + ATF_TP_ADD_TC(tp, vfork5); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork6); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork7); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork8); \ + ATF_TP_ADD_TC(tp, vfork9); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork10); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork11); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork12); \ + ATF_TP_ADD_TC(tp, vfork13); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork14); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork15); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork16); \ + ATF_TP_ADD_TC(tp, posix_spawn1); \ + ATF_TP_ADD_TC(tp, posix_spawn2); \ + ATF_TP_ADD_TC(tp, posix_spawn3); \ + ATF_TP_ADD_TC(tp, posix_spawn4); \ + ATF_TP_ADD_TC(tp, posix_spawn5); \ + ATF_TP_ADD_TC(tp, posix_spawn6); \ + ATF_TP_ADD_TC(tp, posix_spawn7); \ + ATF_TP_ADD_TC(tp, posix_spawn8); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn9); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn10); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn11); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn12); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn13); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn14); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn15); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn16); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork1); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork2); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork3); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork4); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork5); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork6); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork7); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork8); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork9); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork10); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork11); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork12); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork13); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork14); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork15); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork16); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork1); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork2); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork3); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork4); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork5); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork6); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork7); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork8); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork9); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork10); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork11); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork12); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork13); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork14); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork15); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork16); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn1); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn2); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn3); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn4); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn5); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn6); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn7); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn8); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn9); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn10); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn11); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn12); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn13); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn14); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn15); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn16); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_detach_spawner); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork_detach_forker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork_detach_vforker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork_detach_vforkerdone); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_kill_spawner); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork_kill_forker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork_kill_vforker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork_kill_vforkerdone); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn_detach_spawner); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork_detach_forker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_detach_vforker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_detach_vforkerdone); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn_kill_spawner); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork_kill_forker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_kill_vforker); \ + ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_kill_vforkerdone); \ + ATF_TP_ADD_TC(tp, traceme_vfork_fork); \ + ATF_TP_ADD_TC(tp, traceme_vfork_vfork); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_singalmasked); \ + ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_singalignored); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork_singalmasked); \ + ATF_TP_ADD_TC_HAVE_PID(tp, fork_singalignored); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork_singalmasked); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vfork_singalignored); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vforkdone_singalmasked); \ + ATF_TP_ADD_TC_HAVE_PID(tp, vforkdone_singalignored); diff --git a/tests/lib/libc/sys/t_ptrace_wait.c b/tests/lib/libc/sys/t_ptrace_wait.c index ba63e8b0979..250fad20ba3 100644 --- a/tests/lib/libc/sys/t_ptrace_wait.c +++ b/tests/lib/libc/sys/t_ptrace_wait.c @@ -1,4 +1,4 @@ -/* $NetBSD: t_ptrace_wait.c,v 1.179 2020/05/04 22:15:23 kamil Exp $ */ +/* $NetBSD: t_ptrace_wait.c,v 1.180 2020/05/04 22:34:22 kamil Exp $ */ /*- * Copyright (c) 2016, 2017, 2018, 2019 The NetBSD Foundation, Inc. @@ -27,7 +27,7 @@ */ #include <sys/cdefs.h> -__RCSID("$NetBSD: t_ptrace_wait.c,v 1.179 2020/05/04 22:15:23 kamil Exp $"); +__RCSID("$NetBSD: t_ptrace_wait.c,v 1.180 2020/05/04 22:34:22 kamil Exp $"); #define __LEGACY_PT_LWPINFO @@ -2998,1202 +2998,6 @@ EVENTMASK_PRESERVED(eventmask_preserved_posix_spawn, PTRACE_POSIX_SPAWN) /// ---------------------------------------------------------------------------- -static void -fork_body(const char *fn, bool trackspawn, bool trackfork, bool trackvfork, - bool trackvforkdone) -{ - const int exitval = 5; - const int exitval2 = 0; /* This matched exit status from /bin/echo */ - const int sigval = SIGSTOP; - pid_t child, child2 = 0, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - - char * const arg[] = { __UNCONST("/bin/echo"), NULL }; - - DPRINTF("Before forking process PID=%d\n", getpid()); - SYSCALL_REQUIRE((child = fork()) != -1); - if (child == 0) { - DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - DPRINTF("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - if (strcmp(fn, "spawn") == 0) { - FORKEE_ASSERT_EQ(posix_spawn(&child2, - arg[0], NULL, NULL, arg, NULL), 0); - } else { - if (strcmp(fn, "fork") == 0) { - FORKEE_ASSERT((child2 = fork()) != -1); - } else if (strcmp(fn, "vfork") == 0) { - FORKEE_ASSERT((child2 = vfork()) != -1); - } - - if (child2 == 0) - _exit(exitval2); - } - FORKEE_REQUIRE_SUCCESS - (wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - forkee_status_exited(status, exitval2); - - DPRINTF("Before exiting of the child process\n"); - _exit(exitval); - } - DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - DPRINTF("Set 0%s%s%s%s in EVENT_MASK for the child %d\n", - trackspawn ? "|PTRACE_POSIX_SPAWN" : "", - trackfork ? "|PTRACE_FORK" : "", - trackvfork ? "|PTRACE_VFORK" : "", - trackvforkdone ? "|PTRACE_VFORK_DONE" : "", child); - event.pe_set_event = 0; - if (trackspawn) - event.pe_set_event |= PTRACE_POSIX_SPAWN; - if (trackfork) - event.pe_set_event |= PTRACE_FORK; - if (trackvfork) - event.pe_set_event |= PTRACE_VFORK; - if (trackvforkdone) - event.pe_set_event |= PTRACE_VFORK_DONE; - SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - DPRINTF("Before resuming the child process where it left off and " - "without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - -#if defined(TWAIT_HAVE_PID) - if ((trackspawn && strcmp(fn, "spawn") == 0) || - (trackfork && strcmp(fn, "fork") == 0) || - (trackvfork && strcmp(fn, "vfork") == 0)) { - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, - child); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), - child); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - if (trackspawn && strcmp(fn, "spawn") == 0) { - ATF_REQUIRE_EQ( - state.pe_report_event & PTRACE_POSIX_SPAWN, - PTRACE_POSIX_SPAWN); - } - if (trackfork && strcmp(fn, "fork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, - PTRACE_FORK); - } - if (trackvfork && strcmp(fn, "vfork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, - PTRACE_VFORK); - } - - child2 = state.pe_other_pid; - DPRINTF("Reported ptrace event with forkee %d\n", child2); - - DPRINTF("Before calling %s() for the forkee %d of the child " - "%d\n", TWAIT_FNAME, child2, child); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), - child2); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1); - if (trackspawn && strcmp(fn, "spawn") == 0) { - ATF_REQUIRE_EQ( - state.pe_report_event & PTRACE_POSIX_SPAWN, - PTRACE_POSIX_SPAWN); - } - if (trackfork && strcmp(fn, "fork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, - PTRACE_FORK); - } - if (trackvfork && strcmp(fn, "vfork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, - PTRACE_VFORK); - } - - ATF_REQUIRE_EQ(state.pe_other_pid, child); - - DPRINTF("Before resuming the forkee process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE( - ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1); - - DPRINTF("Before resuming the child process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - } -#endif - - if (trackvforkdone && strcmp(fn, "vfork") == 0) { - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, - child); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); - - child2 = state.pe_other_pid; - DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", - child2); - - DPRINTF("Before resuming the child process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - } - -#if defined(TWAIT_HAVE_PID) - if ((trackspawn && strcmp(fn, "spawn") == 0) || - (trackfork && strcmp(fn, "fork") == 0) || - (trackvfork && strcmp(fn, "vfork") == 0)) { - DPRINTF("Before calling %s() for the forkee - expected exited" - "\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - validate_status_exited(status, exitval2); - - DPRINTF("Before calling %s() for the forkee - expected no " - "process\n", TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, - wpid = TWAIT_GENERIC(child2, &status, 0)); - } -#endif - - DPRINTF("Before calling %s() for the child - expected stopped " - "SIGCHLD\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGCHLD); - - DPRINTF("Before resuming the child process where it left off and " - "without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - DPRINTF("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - DPRINTF("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); -} - -#define FORK_TEST(name,fun,tspawn,tfork,tvfork,tvforkdone) \ -ATF_TC(name); \ -ATF_TC_HEAD(name, tc) \ -{ \ - atf_tc_set_md_var(tc, "descr", "Verify " fun "() " \ - "called with 0%s%s%s%s in EVENT_MASK", \ - tspawn ? "|PTRACE_POSIX_SPAWN" : "", \ - tfork ? "|PTRACE_FORK" : "", \ - tvfork ? "|PTRACE_VFORK" : "", \ - tvforkdone ? "|PTRACE_VFORK_DONE" : ""); \ -} \ - \ -ATF_TC_BODY(name, tc) \ -{ \ - \ - fork_body(fun, tspawn, tfork, tvfork, tvforkdone); \ -} - -FORK_TEST(fork1, "fork", false, false, false, false) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(fork2, "fork", false, true, false, false) -FORK_TEST(fork3, "fork", false, false, true, false) -FORK_TEST(fork4, "fork", false, true, true, false) -#endif -FORK_TEST(fork5, "fork", false, false, false, true) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(fork6, "fork", false, true, false, true) -FORK_TEST(fork7, "fork", false, false, true, true) -FORK_TEST(fork8, "fork", false, true, true, true) -#endif -FORK_TEST(fork9, "fork", true, false, false, false) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(fork10, "fork", true, true, false, false) -FORK_TEST(fork11, "fork", true, false, true, false) -FORK_TEST(fork12, "fork", true, true, true, false) -#endif -FORK_TEST(fork13, "fork", true, false, false, true) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(fork14, "fork", true, true, false, true) -FORK_TEST(fork15, "fork", true, false, true, true) -FORK_TEST(fork16, "fork", true, true, true, true) -#endif - -FORK_TEST(vfork1, "vfork", false, false, false, false) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(vfork2, "vfork", false, true, false, false) -FORK_TEST(vfork3, "vfork", false, false, true, false) -FORK_TEST(vfork4, "vfork", false, true, true, false) -#endif -FORK_TEST(vfork5, "vfork", false, false, false, true) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(vfork6, "vfork", false, true, false, true) -FORK_TEST(vfork7, "vfork", false, false, true, true) -FORK_TEST(vfork8, "vfork", false, true, true, true) -#endif -FORK_TEST(vfork9, "vfork", true, false, false, false) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(vfork10, "vfork", true, true, false, false) -FORK_TEST(vfork11, "vfork", true, false, true, false) -FORK_TEST(vfork12, "vfork", true, true, true, false) -#endif -FORK_TEST(vfork13, "vfork", true, false, false, true) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(vfork14, "vfork", true, true, false, true) -FORK_TEST(vfork15, "vfork", true, false, true, true) -FORK_TEST(vfork16, "vfork", true, true, true, true) -#endif - -FORK_TEST(posix_spawn1, "spawn", false, false, false, false) -FORK_TEST(posix_spawn2, "spawn", false, true, false, false) -FORK_TEST(posix_spawn3, "spawn", false, false, true, false) -FORK_TEST(posix_spawn4, "spawn", false, true, true, false) -FORK_TEST(posix_spawn5, "spawn", false, false, false, true) -FORK_TEST(posix_spawn6, "spawn", false, true, false, true) -FORK_TEST(posix_spawn7, "spawn", false, false, true, true) -FORK_TEST(posix_spawn8, "spawn", false, true, true, true) -#if defined(TWAIT_HAVE_PID) -FORK_TEST(posix_spawn9, "spawn", true, false, false, false) -FORK_TEST(posix_spawn10, "spawn", true, true, false, false) -FORK_TEST(posix_spawn11, "spawn", true, false, true, false) -FORK_TEST(posix_spawn12, "spawn", true, true, true, false) -FORK_TEST(posix_spawn13, "spawn", true, false, false, true) -FORK_TEST(posix_spawn14, "spawn", true, true, false, true) -FORK_TEST(posix_spawn15, "spawn", true, false, true, true) -FORK_TEST(posix_spawn16, "spawn", true, true, true, true) -#endif - -/// ---------------------------------------------------------------------------- - -#if defined(TWAIT_HAVE_PID) -static void -unrelated_tracer_fork_body(const char *fn, bool trackspawn, bool trackfork, - bool trackvfork, bool trackvforkdone) -{ - const int sigval = SIGSTOP; - struct msg_fds parent_tracee, parent_tracer; - const int exitval = 10; - const int exitval2 = 0; /* This matched exit status from /bin/echo */ - pid_t tracee, tracer, wpid; - pid_t tracee2 = 0; - uint8_t msg = 0xde; /* dummy message for IPC based on pipe(2) */ -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - - struct ptrace_siginfo info; - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - - char * const arg[] = { __UNCONST("/bin/echo"), NULL }; - - DPRINTF("Spawn tracee\n"); - SYSCALL_REQUIRE(msg_open(&parent_tracee) == 0); - tracee = atf_utils_fork(); - if (tracee == 0) { - // Wait for parent to let us crash - CHILD_FROM_PARENT("exit tracee", parent_tracee, msg); - - DPRINTF("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - if (strcmp(fn, "spawn") == 0) { - FORKEE_ASSERT_EQ(posix_spawn(&tracee2, - arg[0], NULL, NULL, arg, NULL), 0); - } else { - if (strcmp(fn, "fork") == 0) { - FORKEE_ASSERT((tracee2 = fork()) != -1); - } else if (strcmp(fn, "vfork") == 0) { - FORKEE_ASSERT((tracee2 = vfork()) != -1); - } - - if (tracee2 == 0) - _exit(exitval2); - } - FORKEE_REQUIRE_SUCCESS - (wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); - - forkee_status_exited(status, exitval2); - - DPRINTF("Before exiting of the child process\n"); - _exit(exitval); - } - - DPRINTF("Spawn debugger\n"); - SYSCALL_REQUIRE(msg_open(&parent_tracer) == 0); - tracer = atf_utils_fork(); - if (tracer == 0) { - /* Fork again and drop parent to reattach to PID 1 */ - tracer = atf_utils_fork(); - if (tracer != 0) - _exit(exitval); - - DPRINTF("Before calling PT_ATTACH from tracee %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_ATTACH, tracee, NULL, 0) != -1); - - /* Wait for tracee and assert that it was stopped w/ SIGSTOP */ - FORKEE_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - forkee_status_stopped(status, SIGSTOP); - - DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " - "traced process\n"); - SYSCALL_REQUIRE( - ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); - - DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); - DPRINTF("Signal properties: si_signo=%#x si_code=%#x " - "si_errno=%#x\n", info.psi_siginfo.si_signo, - info.psi_siginfo.si_code, info.psi_siginfo.si_errno); - - FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, SIGSTOP); - FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_USER); - - /* Resume tracee with PT_CONTINUE */ - FORKEE_ASSERT(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); - - /* Inform parent that tracer has attached to tracee */ - CHILD_TO_PARENT("tracer ready", parent_tracer, msg); - - /* Wait for parent to tell use that tracee should have exited */ - CHILD_FROM_PARENT("wait for tracee exit", parent_tracer, msg); - - /* Wait for tracee and assert that it exited */ - FORKEE_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - forkee_status_stopped(status, sigval); - - DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " - "traced process\n"); - SYSCALL_REQUIRE( - ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); - - DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); - DPRINTF("Signal properties: si_signo=%#x si_code=%#x " - "si_errno=%#x\n", info.psi_siginfo.si_signo, - info.psi_siginfo.si_code, info.psi_siginfo.si_errno); - - FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, sigval); - FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_LWP); - - DPRINTF("Set 0%s%s%s%s in EVENT_MASK for the child %d\n", - trackspawn ? "|PTRACE_POSIX_SPAWN" : "", - trackfork ? "|PTRACE_FORK" : "", - trackvfork ? "|PTRACE_VFORK" : "", - trackvforkdone ? "|PTRACE_VFORK_DONE" : "", tracee); - event.pe_set_event = 0; - if (trackspawn) - event.pe_set_event |= PTRACE_POSIX_SPAWN; - if (trackfork) - event.pe_set_event |= PTRACE_FORK; - if (trackvfork) - event.pe_set_event |= PTRACE_VFORK; - if (trackvforkdone) - event.pe_set_event |= PTRACE_VFORK_DONE; - SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, tracee, &event, elen) - != -1); - - DPRINTF("Before resuming the child process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); - - if ((trackspawn && strcmp(fn, "spawn") == 0) || - (trackfork && strcmp(fn, "fork") == 0) || - (trackvfork && strcmp(fn, "vfork") == 0)) { - DPRINTF("Before calling %s() for the tracee %d\n", TWAIT_FNAME, - tracee); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), - tracee); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); - if (trackspawn && strcmp(fn, "spawn") == 0) { - ATF_REQUIRE_EQ( - state.pe_report_event & PTRACE_POSIX_SPAWN, - PTRACE_POSIX_SPAWN); - } - if (trackfork && strcmp(fn, "fork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, - PTRACE_FORK); - } - if (trackvfork && strcmp(fn, "vfork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, - PTRACE_VFORK); - } - - tracee2 = state.pe_other_pid; - DPRINTF("Reported ptrace event with forkee %d\n", tracee2); - - DPRINTF("Before calling %s() for the forkee %d of the tracee " - "%d\n", TWAIT_FNAME, tracee2, tracee); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee2, &status, 0), - tracee2); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, tracee2, &state, slen) != -1); - if (trackspawn && strcmp(fn, "spawn") == 0) { - ATF_REQUIRE_EQ( - state.pe_report_event & PTRACE_POSIX_SPAWN, - PTRACE_POSIX_SPAWN); - } - if (trackfork && strcmp(fn, "fork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, - PTRACE_FORK); - } - if (trackvfork && strcmp(fn, "vfork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, - PTRACE_VFORK); - } - - ATF_REQUIRE_EQ(state.pe_other_pid, tracee); - - DPRINTF("Before resuming the forkee process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE( - ptrace(PT_CONTINUE, tracee2, (void *)1, 0) != -1); - - DPRINTF("Before resuming the tracee process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); - } - - if (trackvforkdone && strcmp(fn, "vfork") == 0) { - DPRINTF("Before calling %s() for the tracee %d\n", TWAIT_FNAME, - tracee); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); - - tracee2 = state.pe_other_pid; - DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", - tracee2); - - DPRINTF("Before resuming the tracee process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); - } - - - if ((trackspawn && strcmp(fn, "spawn") == 0) || - (trackfork && strcmp(fn, "fork") == 0) || - (trackvfork && strcmp(fn, "vfork") == 0)) { - DPRINTF("Before calling %s() for the forkee - expected exited" - "\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); - - validate_status_exited(status, exitval2); - - DPRINTF("Before calling %s() for the forkee - expected no " - "process\n", TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, - wpid = TWAIT_GENERIC(tracee2, &status, 0)); - } - - DPRINTF("Before calling %s() for the tracee - expected stopped " - "SIGCHLD\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - validate_status_stopped(status, SIGCHLD); - - DPRINTF("Before resuming the tracee process where it left off and " - "without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); - - DPRINTF("Before calling %s() for the tracee - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - validate_status_exited(status, exitval); - - /* Inform parent that tracer is exiting normally */ - CHILD_TO_PARENT("tracer done", parent_tracer, msg); - - DPRINTF("Before exiting of the tracer process\n"); - _exit(0 /* collect by initproc */); - } - - DPRINTF("Wait for the tracer process (direct child) to exit " - "calling %s()\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracer, &status, 0), tracer); - - validate_status_exited(status, exitval); - - DPRINTF("Wait for the non-exited tracee process with %s()\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, NULL, WNOHANG), 0); - - DPRINTF("Wait for the tracer to attach to the tracee\n"); - PARENT_FROM_CHILD("tracer ready", parent_tracer, msg); - - DPRINTF("Resume the tracee and let it crash\n"); - PARENT_TO_CHILD("exit tracee", parent_tracee, msg); - - DPRINTF("Resume the tracer and let it detect crashed tracee\n"); - PARENT_TO_CHILD("Message 2", parent_tracer, msg); - - DPRINTF("Wait for tracee to finish its job and exit - calling %s()\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - validate_status_exited(status, exitval); - - DPRINTF("Await normal exit of tracer\n"); - PARENT_FROM_CHILD("tracer done", parent_tracer, msg); - - msg_close(&parent_tracer); - msg_close(&parent_tracee); -} - -#define UNRELATED_TRACER_FORK_TEST(name,fun,tspawn,tfork,tvfork,tvforkdone)\ -ATF_TC(name); \ -ATF_TC_HEAD(name, tc) \ -{ \ - atf_tc_set_md_var(tc, "descr", "Verify " fun "() " \ - "called with 0%s%s%s%s in EVENT_MASK", \ - tspawn ? "|PTRACE_POSIX_SPAWN" : "", \ - tfork ? "|PTRACE_FORK" : "", \ - tvfork ? "|PTRACE_VFORK" : "", \ - tvforkdone ? "|PTRACE_VFORK_DONE" : ""); \ -} \ - \ -ATF_TC_BODY(name, tc) \ -{ \ - \ - unrelated_tracer_fork_body(fun, tspawn, tfork, tvfork, \ - tvforkdone); \ -} - -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork1, "fork", false, false, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork2, "fork", false, true, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork3, "fork", false, false, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork4, "fork", false, true, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork5, "fork", false, false, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork6, "fork", false, true, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork7, "fork", false, false, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork8, "fork", false, true, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork9, "fork", true, false, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork10, "fork", true, true, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork11, "fork", true, false, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork12, "fork", true, true, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork13, "fork", true, false, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork14, "fork", true, true, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork15, "fork", true, false, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_fork16, "fork", true, true, true, true) - -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork1, "vfork", false, false, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork2, "vfork", false, true, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork3, "vfork", false, false, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork4, "vfork", false, true, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork5, "vfork", false, false, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork6, "vfork", false, true, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork7, "vfork", false, false, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork8, "vfork", false, true, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork9, "vfork", true, false, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork10, "vfork", true, true, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork11, "vfork", true, false, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork12, "vfork", true, true, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork13, "vfork", true, false, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork14, "vfork", true, true, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork15, "vfork", true, false, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_vfork16, "vfork", true, true, true, true) - -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn1, "spawn", false, false, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn2, "spawn", false, true, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn3, "spawn", false, false, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn4, "spawn", false, true, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn5, "spawn", false, false, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn6, "spawn", false, true, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn7, "spawn", false, false, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn8, "spawn", false, true, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn9, "spawn", true, false, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn10, "spawn", true, true, false, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn11, "spawn", true, false, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn12, "spawn", true, true, true, false) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn13, "spawn", true, false, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn14, "spawn", true, true, false, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn15, "spawn", true, false, true, true) -UNRELATED_TRACER_FORK_TEST(unrelated_tracer_posix_spawn16, "spawn", true, true, true, true) -#endif - -/// ---------------------------------------------------------------------------- - -#if defined(TWAIT_HAVE_PID) -static void -fork_detach_forker_body(const char *fn, bool kill_process) -{ - const int exitval = 5; - const int exitval2 = 0; /* Matches exit value from /bin/echo */ - const int sigval = SIGSTOP; - pid_t child, child2 = 0, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - - int op; - - char * const arg[] = { __UNCONST("/bin/echo"), NULL }; - - DPRINTF("Before forking process PID=%d\n", getpid()); - SYSCALL_REQUIRE((child = fork()) != -1); - if (child == 0) { - DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - DPRINTF("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - if (strcmp(fn, "spawn") == 0) { - FORKEE_ASSERT_EQ(posix_spawn(&child2, - arg[0], NULL, NULL, arg, NULL), 0); - } else { - if (strcmp(fn, "fork") == 0) { - FORKEE_ASSERT((child2 = fork()) != -1); - } else { - FORKEE_ASSERT((child2 = vfork()) != -1); - } - - if (child2 == 0) - _exit(exitval2); - } - - FORKEE_REQUIRE_SUCCESS - (wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - forkee_status_exited(status, exitval2); - - DPRINTF("Before exiting of the child process\n"); - _exit(exitval); - } - DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - DPRINTF("Set EVENT_MASK for the child %d\n", child); - event.pe_set_event = PTRACE_POSIX_SPAWN | PTRACE_FORK | PTRACE_VFORK - | PTRACE_VFORK_DONE; - SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - DPRINTF("Before resuming the child process where it left off and " - "without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, child); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - - if (strcmp(fn, "spawn") == 0) - op = PTRACE_POSIX_SPAWN; - else if (strcmp(fn, "fork") == 0) - op = PTRACE_FORK; - else - op = PTRACE_VFORK; - - ATF_REQUIRE_EQ(state.pe_report_event & op, op); - - child2 = state.pe_other_pid; - DPRINTF("Reported ptrace event with forkee %d\n", child2); - - if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || - strcmp(fn, "vfork") == 0) - op = kill_process ? PT_KILL : PT_DETACH; - else - op = PT_CONTINUE; - SYSCALL_REQUIRE(ptrace(op, child, (void *)1, 0) != -1); - - DPRINTF("Before calling %s() for the forkee %d of the child %d\n", - TWAIT_FNAME, child2, child); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1); - if (strcmp(fn, "spawn") == 0) - op = PTRACE_POSIX_SPAWN; - else if (strcmp(fn, "fork") == 0) - op = PTRACE_FORK; - else - op = PTRACE_VFORK; - - ATF_REQUIRE_EQ(state.pe_report_event & op, op); - ATF_REQUIRE_EQ(state.pe_other_pid, child); - - DPRINTF("Before resuming the forkee process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE( - ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1); - - if (strcmp(fn, "vforkdone") == 0) { - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, - child); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); - - child2 = state.pe_other_pid; - DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", - child2); - - op = kill_process ? PT_KILL : PT_DETACH; - DPRINTF("Before resuming the child process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(op, child, (void *)1, 0) != -1); - } - - DPRINTF("Before calling %s() for the forkee - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - validate_status_exited(status, exitval2); - - DPRINTF("Before calling %s() for the forkee - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child2, &status, 0)); - - DPRINTF("Before calling %s() for the forkee - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - if (kill_process) { - validate_status_signaled(status, SIGKILL, 0); - } else { - validate_status_exited(status, exitval); - } - - DPRINTF("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); -} - -#define FORK_DETACH_FORKER(name,event,kprocess) \ -ATF_TC(name); \ -ATF_TC_HEAD(name, tc) \ -{ \ - atf_tc_set_md_var(tc, "descr", "Verify %s " event, \ - kprocess ? "killed" : "detached"); \ -} \ - \ -ATF_TC_BODY(name, tc) \ -{ \ - \ - fork_detach_forker_body(event, kprocess); \ -} - -FORK_DETACH_FORKER(posix_spawn_detach_spawner, "spawn", false) -FORK_DETACH_FORKER(fork_detach_forker, "fork", false) -FORK_DETACH_FORKER(vfork_detach_vforker, "vfork", false) -FORK_DETACH_FORKER(vfork_detach_vforkerdone, "vforkdone", false) - -FORK_DETACH_FORKER(posix_spawn_kill_spawner, "spawn", true) -FORK_DETACH_FORKER(fork_kill_forker, "fork", true) -FORK_DETACH_FORKER(vfork_kill_vforker, "vfork", true) -FORK_DETACH_FORKER(vfork_kill_vforkerdone, "vforkdone", true) -#endif - -/// ---------------------------------------------------------------------------- - -#if defined(TWAIT_HAVE_PID) -static void -unrelated_tracer_fork_detach_forker_body(const char *fn, bool kill_process) -{ - const int sigval = SIGSTOP; - struct msg_fds parent_tracee, parent_tracer; - const int exitval = 10; - const int exitval2 = 0; /* This matched exit status from /bin/echo */ - pid_t tracee, tracer, wpid; - pid_t tracee2 = 0; - uint8_t msg = 0xde; /* dummy message for IPC based on pipe(2) */ -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - int op; - - struct ptrace_siginfo info; - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - - char * const arg[] = { __UNCONST("/bin/echo"), NULL }; - - DPRINTF("Spawn tracee\n"); - SYSCALL_REQUIRE(msg_open(&parent_tracee) == 0); - tracee = atf_utils_fork(); - if (tracee == 0) { - // Wait for parent to let us crash - CHILD_FROM_PARENT("exit tracee", parent_tracee, msg); - - DPRINTF("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - if (strcmp(fn, "spawn") == 0) { - FORKEE_ASSERT_EQ(posix_spawn(&tracee2, - arg[0], NULL, NULL, arg, NULL), 0); - } else { - if (strcmp(fn, "fork") == 0) { - FORKEE_ASSERT((tracee2 = fork()) != -1); - } else { - FORKEE_ASSERT((tracee2 = vfork()) != -1); - } - - if (tracee2 == 0) - _exit(exitval2); - } - - FORKEE_REQUIRE_SUCCESS - (wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); - - forkee_status_exited(status, exitval2); - - DPRINTF("Before exiting of the child process\n"); - _exit(exitval); - } - - DPRINTF("Spawn debugger\n"); - SYSCALL_REQUIRE(msg_open(&parent_tracer) == 0); - tracer = atf_utils_fork(); - if (tracer == 0) { - /* Fork again and drop parent to reattach to PID 1 */ - tracer = atf_utils_fork(); - if (tracer != 0) - _exit(exitval); - - DPRINTF("Before calling PT_ATTACH from tracee %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_ATTACH, tracee, NULL, 0) != -1); - - /* Wait for tracee and assert that it was stopped w/ SIGSTOP */ - FORKEE_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - forkee_status_stopped(status, SIGSTOP); - - DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " - "traced process\n"); - SYSCALL_REQUIRE( - ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); - - DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); - DPRINTF("Signal properties: si_signo=%#x si_code=%#x " - "si_errno=%#x\n", info.psi_siginfo.si_signo, - info.psi_siginfo.si_code, info.psi_siginfo.si_errno); - - FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, SIGSTOP); - FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_USER); - - /* Resume tracee with PT_CONTINUE */ - FORKEE_ASSERT(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); - - /* Inform parent that tracer has attached to tracee */ - CHILD_TO_PARENT("tracer ready", parent_tracer, msg); - - /* Wait for parent to tell use that tracee should have exited */ - CHILD_FROM_PARENT("wait for tracee exit", parent_tracer, msg); - - /* Wait for tracee and assert that it exited */ - FORKEE_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - forkee_status_stopped(status, sigval); - - DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for the " - "traced process\n"); - SYSCALL_REQUIRE( - ptrace(PT_GET_SIGINFO, tracee, &info, sizeof(info)) != -1); - - DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid); - DPRINTF("Signal properties: si_signo=%#x si_code=%#x " - "si_errno=%#x\n", info.psi_siginfo.si_signo, - info.psi_siginfo.si_code, info.psi_siginfo.si_errno); - - FORKEE_ASSERT_EQ(info.psi_siginfo.si_signo, sigval); - FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, SI_LWP); - - DPRINTF("Set EVENT_MASK for the child %d\n", tracee); - event.pe_set_event = PTRACE_POSIX_SPAWN | PTRACE_FORK | PTRACE_VFORK - | PTRACE_VFORK_DONE; - SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, tracee, &event, elen) != -1); - - DPRINTF("Before resuming the child process where it left off and " - "without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, tracee, (void *)1, 0) != -1); - - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, tracee); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); - - if (strcmp(fn, "spawn") == 0) - op = PTRACE_POSIX_SPAWN; - else if (strcmp(fn, "fork") == 0) - op = PTRACE_FORK; - else - op = PTRACE_VFORK; - - ATF_REQUIRE_EQ(state.pe_report_event & op, op); - - tracee2 = state.pe_other_pid; - DPRINTF("Reported ptrace event with forkee %d\n", tracee2); - if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || - strcmp(fn, "vfork") == 0) - op = kill_process ? PT_KILL : PT_DETACH; - else - op = PT_CONTINUE; - SYSCALL_REQUIRE(ptrace(op, tracee, (void *)1, 0) != -1); - - DPRINTF("Before calling %s() for the forkee %d of the tracee %d\n", - TWAIT_FNAME, tracee2, tracee); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, tracee2, &state, slen) != -1); - if (strcmp(fn, "spawn") == 0) - op = PTRACE_POSIX_SPAWN; - else if (strcmp(fn, "fork") == 0) - op = PTRACE_FORK; - else - op = PTRACE_VFORK; - - ATF_REQUIRE_EQ(state.pe_report_event & op, op); - ATF_REQUIRE_EQ(state.pe_other_pid, tracee); - - DPRINTF("Before resuming the forkee process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE( - ptrace(PT_CONTINUE, tracee2, (void *)1, 0) != -1); - - if (strcmp(fn, "vforkdone") == 0) { - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, - tracee); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - validate_status_stopped(status, SIGTRAP); - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, tracee, &state, slen) != -1); - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); - - tracee2 = state.pe_other_pid; - DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", - tracee2); - - op = kill_process ? PT_KILL : PT_DETACH; - DPRINTF("Before resuming the child process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(op, tracee, (void *)1, 0) != -1); - } - - DPRINTF("Before calling %s() for the forkee - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee2, &status, 0), tracee2); - - validate_status_exited(status, exitval2); - - DPRINTF("Before calling %s() for the forkee - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(tracee2, &status, 0)); - - if (kill_process) { - DPRINTF("Before calling %s() for the forkee - expected signaled\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - validate_status_signaled(status, SIGKILL, 0); - } - - /* Inform parent that tracer is exiting normally */ - CHILD_TO_PARENT("tracer done", parent_tracer, msg); - - DPRINTF("Before exiting of the tracer process\n"); - _exit(0 /* collect by initproc */); - } - - DPRINTF("Wait for the tracer process (direct child) to exit " - "calling %s()\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracer, &status, 0), tracer); - - validate_status_exited(status, exitval); - - DPRINTF("Wait for the non-exited tracee process with %s()\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(tracee, NULL, WNOHANG), 0); - - DPRINTF("Wait for the tracer to attach to the tracee\n"); - PARENT_FROM_CHILD("tracer ready", parent_tracer, msg); - - DPRINTF("Resume the tracee and let it crash\n"); - PARENT_TO_CHILD("exit tracee", parent_tracee, msg); - - DPRINTF("Resume the tracer and let it detect crashed tracee\n"); - PARENT_TO_CHILD("Message 2", parent_tracer, msg); - - DPRINTF("Wait for tracee to finish its job and exit - calling %s()\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(tracee, &status, 0), tracee); - - if (kill_process) { - validate_status_signaled(status, SIGKILL, 0); - } else { - validate_status_exited(status, exitval); - } - - DPRINTF("Await normal exit of tracer\n"); - PARENT_FROM_CHILD("tracer done", parent_tracer, msg); - - msg_close(&parent_tracer); - msg_close(&parent_tracee); -} - -#define UNRELATED_TRACER_FORK_DETACH_FORKER(name,event,kprocess) \ -ATF_TC(name); \ -ATF_TC_HEAD(name, tc) \ -{ \ - atf_tc_set_md_var(tc, "descr", "Verify %s " event, \ - kprocess ? "killed" : "detached"); \ -} \ - \ -ATF_TC_BODY(name, tc) \ -{ \ - \ - unrelated_tracer_fork_detach_forker_body(event, kprocess); \ -} - -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_posix_spawn_detach_spawner, "spawn", false) -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_fork_detach_forker, "fork", false) -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_detach_vforker, "vfork", false) -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_detach_vforkerdone, "vforkdone", false) - -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_posix_spawn_kill_spawner, "spawn", true) -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_fork_kill_forker, "fork", true) -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_kill_vforker, "vfork", true) -UNRELATED_TRACER_FORK_DETACH_FORKER(unrelated_tracer_vfork_kill_vforkerdone, "vforkdone", true) -#endif - -/// ---------------------------------------------------------------------------- - -static void -traceme_vfork_fork_body(pid_t (*fn)(void)) -{ - const int exitval = 5; - const int exitval2 = 15; - pid_t child, child2 = 0, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - - DPRINTF("Before forking process PID=%d\n", getpid()); - SYSCALL_REQUIRE((child = vfork()) != -1); - if (child == 0) { - DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - FORKEE_ASSERT((child2 = (fn)()) != -1); - - if (child2 == 0) - _exit(exitval2); - - FORKEE_REQUIRE_SUCCESS - (wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - forkee_status_exited(status, exitval2); - - DPRINTF("Before exiting of the child process\n"); - _exit(exitval); - } - DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - DPRINTF("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - DPRINTF("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); -} - -#define TRACEME_VFORK_FORK_TEST(name,fun) \ -ATF_TC(name); \ -ATF_TC_HEAD(name, tc) \ -{ \ - atf_tc_set_md_var(tc, "descr", "Verify " #fun "(2) " \ - "called from vfork(2)ed child"); \ -} \ - \ -ATF_TC_BODY(name, tc) \ -{ \ - \ - traceme_vfork_fork_body(fun); \ -} - -TRACEME_VFORK_FORK_TEST(traceme_vfork_fork, fork) -TRACEME_VFORK_FORK_TEST(traceme_vfork_vfork, vfork) - -/// ---------------------------------------------------------------------------- - static int lwpinfo_thread_sigmask[] = {SIGXCPU, SIGPIPE, SIGALRM, SIGURG}; static pthread_mutex_t lwpinfo_thread_mtx = PTHREAD_MUTEX_INITIALIZER; @@ -5379,390 +4183,6 @@ ATF_TC_BODY(signal_mask_unrelated, tc) /// ---------------------------------------------------------------------------- -#if defined(TWAIT_HAVE_PID) -static void -fork2_body(const char *fn, bool masked, bool ignored) -{ - const int exitval = 5; - const int exitval2 = 0; /* Match exit status from /bin/echo */ - const int sigval = SIGSTOP; - pid_t child, child2 = 0, wpid; -#if defined(TWAIT_HAVE_STATUS) - int status; -#endif - ptrace_state_t state; - const int slen = sizeof(state); - ptrace_event_t event; - const int elen = sizeof(event); - struct sigaction sa; - struct ptrace_siginfo info; - sigset_t intmask; - struct kinfo_proc2 kp; - size_t len = sizeof(kp); - - int name[6]; - const size_t namelen = __arraycount(name); - ki_sigset_t kp_sigmask; - ki_sigset_t kp_sigignore; - - char * const arg[] = { __UNCONST("/bin/echo"), NULL }; - - DPRINTF("Before forking process PID=%d\n", getpid()); - SYSCALL_REQUIRE((child = fork()) != -1); - if (child == 0) { - DPRINTF("Before calling PT_TRACE_ME from child %d\n", getpid()); - FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1); - - if (masked) { - sigemptyset(&intmask); - sigaddset(&intmask, SIGTRAP); - sigprocmask(SIG_BLOCK, &intmask, NULL); - } - - if (ignored) { - memset(&sa, 0, sizeof(sa)); - sa.sa_handler = SIG_IGN; - sigemptyset(&sa.sa_mask); - FORKEE_ASSERT(sigaction(SIGTRAP, &sa, NULL) != -1); - } - - DPRINTF("Before raising %s from child\n", strsignal(sigval)); - FORKEE_ASSERT(raise(sigval) == 0); - - if (strcmp(fn, "spawn") == 0) { - FORKEE_ASSERT_EQ(posix_spawn(&child2, - arg[0], NULL, NULL, arg, NULL), 0); - } else { - if (strcmp(fn, "fork") == 0) { - FORKEE_ASSERT((child2 = fork()) != -1); - } else { - FORKEE_ASSERT((child2 = vfork()) != -1); - } - if (child2 == 0) - _exit(exitval2); - } - - FORKEE_REQUIRE_SUCCESS - (wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - forkee_status_exited(status, exitval2); - - DPRINTF("Before exiting of the child process\n"); - _exit(exitval); - } - DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child); - - DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, sigval); - - DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for child\n"); - SYSCALL_REQUIRE( - ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1); - - DPRINTF("Before checking siginfo_t\n"); - ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, sigval); - ATF_REQUIRE_EQ(info.psi_siginfo.si_code, SI_LWP); - - name[0] = CTL_KERN, - name[1] = KERN_PROC2, - name[2] = KERN_PROC_PID; - name[3] = child; - name[4] = sizeof(kp); - name[5] = 1; - - FORKEE_ASSERT_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); - - if (masked) - kp_sigmask = kp.p_sigmask; - - if (ignored) - kp_sigignore = kp.p_sigignore; - - DPRINTF("Set 0%s%s%s%s in EVENT_MASK for the child %d\n", - strcmp(fn, "spawn") == 0 ? "|PTRACE_POSIX_SPAWN" : "", - strcmp(fn, "fork") == 0 ? "|PTRACE_FORK" : "", - strcmp(fn, "vfork") == 0 ? "|PTRACE_VFORK" : "", - strcmp(fn, "vforkdone") == 0 ? "|PTRACE_VFORK_DONE" : "", child); - event.pe_set_event = 0; - if (strcmp(fn, "spawn") == 0) - event.pe_set_event |= PTRACE_POSIX_SPAWN; - if (strcmp(fn, "fork") == 0) - event.pe_set_event |= PTRACE_FORK; - if (strcmp(fn, "vfork") == 0) - event.pe_set_event |= PTRACE_VFORK; - if (strcmp(fn, "vforkdone") == 0) - event.pe_set_event |= PTRACE_VFORK_DONE; - SYSCALL_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1); - - DPRINTF("Before resuming the child process where it left off and " - "without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || - strcmp(fn, "vfork") == 0) { - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, - child); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), - child); - - validate_status_stopped(status, SIGTRAP); - - ATF_REQUIRE_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); - - if (masked) { - DPRINTF("kp_sigmask=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp_sigmask.__bits[0], kp_sigmask.__bits[1], - kp_sigmask.__bits[2], kp_sigmask.__bits[3]); - - DPRINTF("kp.p_sigmask=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp.p_sigmask.__bits[0], kp.p_sigmask.__bits[1], - kp.p_sigmask.__bits[2], kp.p_sigmask.__bits[3]); - - ATF_REQUIRE(!memcmp(&kp_sigmask, &kp.p_sigmask, - sizeof(kp_sigmask))); - } - - if (ignored) { - DPRINTF("kp_sigignore=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp_sigignore.__bits[0], kp_sigignore.__bits[1], - kp_sigignore.__bits[2], kp_sigignore.__bits[3]); - - DPRINTF("kp.p_sigignore=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp.p_sigignore.__bits[0], kp.p_sigignore.__bits[1], - kp.p_sigignore.__bits[2], kp.p_sigignore.__bits[3]); - - ATF_REQUIRE(!memcmp(&kp_sigignore, &kp.p_sigignore, - sizeof(kp_sigignore))); - } - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - if (strcmp(fn, "spawn") == 0) { - ATF_REQUIRE_EQ( - state.pe_report_event & PTRACE_POSIX_SPAWN, - PTRACE_POSIX_SPAWN); - } - if (strcmp(fn, "fork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, - PTRACE_FORK); - } - if (strcmp(fn, "vfork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, - PTRACE_VFORK); - } - - child2 = state.pe_other_pid; - DPRINTF("Reported ptrace event with forkee %d\n", child2); - - DPRINTF("Before calling %s() for the forkee %d of the child " - "%d\n", TWAIT_FNAME, child2, child); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0), - child2); - - validate_status_stopped(status, SIGTRAP); - - name[3] = child2; - ATF_REQUIRE_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); - - if (masked) { - DPRINTF("kp_sigmask=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp_sigmask.__bits[0], kp_sigmask.__bits[1], - kp_sigmask.__bits[2], kp_sigmask.__bits[3]); - - DPRINTF("kp.p_sigmask=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp.p_sigmask.__bits[0], kp.p_sigmask.__bits[1], - kp.p_sigmask.__bits[2], kp.p_sigmask.__bits[3]); - - ATF_REQUIRE(!memcmp(&kp_sigmask, &kp.p_sigmask, - sizeof(kp_sigmask))); - } - - if (ignored) { - DPRINTF("kp_sigignore=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp_sigignore.__bits[0], kp_sigignore.__bits[1], - kp_sigignore.__bits[2], kp_sigignore.__bits[3]); - - DPRINTF("kp.p_sigignore=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp.p_sigignore.__bits[0], kp.p_sigignore.__bits[1], - kp.p_sigignore.__bits[2], kp.p_sigignore.__bits[3]); - - ATF_REQUIRE(!memcmp(&kp_sigignore, &kp.p_sigignore, - sizeof(kp_sigignore))); - } - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1); - if (strcmp(fn, "spawn") == 0) { - ATF_REQUIRE_EQ( - state.pe_report_event & PTRACE_POSIX_SPAWN, - PTRACE_POSIX_SPAWN); - } - if (strcmp(fn, "fork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_FORK, - PTRACE_FORK); - } - if (strcmp(fn, "vfork") == 0) { - ATF_REQUIRE_EQ(state.pe_report_event & PTRACE_VFORK, - PTRACE_VFORK); - } - - ATF_REQUIRE_EQ(state.pe_other_pid, child); - - DPRINTF("Before resuming the forkee process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE( - ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1); - - DPRINTF("Before resuming the child process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - } - - if (strcmp(fn, "vforkdone") == 0) { - DPRINTF("Before calling %s() for the child %d\n", TWAIT_FNAME, - child); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGTRAP); - - name[3] = child; - ATF_REQUIRE_EQ(sysctl(name, namelen, &kp, &len, NULL, 0), 0); - - /* - * SIGCHLD is now pending in the signal queue and - * the kernel presents it to userland as a masked signal. - */ - sigdelset((sigset_t *)&kp.p_sigmask, SIGCHLD); - - if (masked) { - DPRINTF("kp_sigmask=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp_sigmask.__bits[0], kp_sigmask.__bits[1], - kp_sigmask.__bits[2], kp_sigmask.__bits[3]); - - DPRINTF("kp.p_sigmask=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp.p_sigmask.__bits[0], kp.p_sigmask.__bits[1], - kp.p_sigmask.__bits[2], kp.p_sigmask.__bits[3]); - - ATF_REQUIRE(!memcmp(&kp_sigmask, &kp.p_sigmask, - sizeof(kp_sigmask))); - } - - if (ignored) { - DPRINTF("kp_sigignore=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp_sigignore.__bits[0], kp_sigignore.__bits[1], - kp_sigignore.__bits[2], kp_sigignore.__bits[3]); - - DPRINTF("kp.p_sigignore=" - "%#02" PRIx32 "%02" PRIx32 "%02" PRIx32 "%02" - PRIx32 "\n", - kp.p_sigignore.__bits[0], kp.p_sigignore.__bits[1], - kp.p_sigignore.__bits[2], kp.p_sigignore.__bits[3]); - - ATF_REQUIRE(!memcmp(&kp_sigignore, &kp.p_sigignore, - sizeof(kp_sigignore))); - } - - SYSCALL_REQUIRE( - ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1); - ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_VFORK_DONE); - - child2 = state.pe_other_pid; - DPRINTF("Reported PTRACE_VFORK_DONE event with forkee %d\n", - child2); - - DPRINTF("Before resuming the child process where it left off " - "and without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - } - - if (strcmp(fn, "spawn") == 0 || strcmp(fn, "fork") == 0 || - strcmp(fn, "vfork") == 0) { - DPRINTF("Before calling %s() for the forkee - expected exited" - "\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS( - wpid = TWAIT_GENERIC(child2, &status, 0), child2); - - validate_status_exited(status, exitval2); - - DPRINTF("Before calling %s() for the forkee - expected no " - "process\n", TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, - wpid = TWAIT_GENERIC(child2, &status, 0)); - } - - DPRINTF("Before calling %s() for the child - expected stopped " - "SIGCHLD\n", TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_stopped(status, SIGCHLD); - - DPRINTF("Before resuming the child process where it left off and " - "without signal to be sent\n"); - SYSCALL_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1); - - DPRINTF("Before calling %s() for the child - expected exited\n", - TWAIT_FNAME); - TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child); - - validate_status_exited(status, exitval); - - DPRINTF("Before calling %s() for the child - expected no process\n", - TWAIT_FNAME); - TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0)); -} - -#define FORK2_TEST(name,fn,masked,ignored) \ -ATF_TC(name); \ -ATF_TC_HEAD(name, tc) \ -{ \ - atf_tc_set_md_var(tc, "descr", "Verify that " fn " is caught " \ - "regardless of signal %s%s", \ - masked ? "masked" : "", ignored ? "ignored" : ""); \ -} \ - \ -ATF_TC_BODY(name, tc) \ -{ \ - \ - fork2_body(fn, masked, ignored); \ -} - -FORK2_TEST(posix_spawn_singalmasked, "spawn", true, false) -FORK2_TEST(posix_spawn_singalignored, "spawn", false, true) -FORK2_TEST(fork_singalmasked, "fork", true, false) -FORK2_TEST(fork_singalignored, "fork", false, true) -FORK2_TEST(vfork_singalmasked, "vfork", true, false) -FORK2_TEST(vfork_singalignored, "vfork", false, true) -FORK2_TEST(vforkdone_singalmasked, "vforkdone", true, false) -FORK2_TEST(vforkdone_singalignored, "vforkdone", false, true) -#endif - -/// ---------------------------------------------------------------------------- - static void * thread_and_exec_thread_cb(void *arg __unused) { @@ -6836,6 +5256,7 @@ THREAD_CONCURRENT_TEST(thread_concurrent_bp_wp_sig_handler, TCSH_HANDLER, #include "t_ptrace_kill_wait.h" #include "t_ptrace_bytetransfer_wait.h" #include "t_ptrace_clone_wait.h" +#include "t_ptrace_fork_wait.h" /// ---------------------------------------------------------------------------- @@ -7044,131 +5465,6 @@ ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TC(tp, eventmask_preserved_lwp_exit); ATF_TP_ADD_TC(tp, eventmask_preserved_posix_spawn); - ATF_TP_ADD_TC(tp, fork1); - ATF_TP_ADD_TC_HAVE_PID(tp, fork2); - ATF_TP_ADD_TC_HAVE_PID(tp, fork3); - ATF_TP_ADD_TC_HAVE_PID(tp, fork4); - ATF_TP_ADD_TC(tp, fork5); - ATF_TP_ADD_TC_HAVE_PID(tp, fork6); - ATF_TP_ADD_TC_HAVE_PID(tp, fork7); - ATF_TP_ADD_TC_HAVE_PID(tp, fork8); - ATF_TP_ADD_TC(tp, fork9); - ATF_TP_ADD_TC_HAVE_PID(tp, fork10); - ATF_TP_ADD_TC_HAVE_PID(tp, fork11); - ATF_TP_ADD_TC_HAVE_PID(tp, fork12); - ATF_TP_ADD_TC(tp, fork13); - ATF_TP_ADD_TC_HAVE_PID(tp, fork14); - ATF_TP_ADD_TC_HAVE_PID(tp, fork15); - ATF_TP_ADD_TC_HAVE_PID(tp, fork16); - - ATF_TP_ADD_TC(tp, vfork1); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork2); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork3); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork4); - ATF_TP_ADD_TC(tp, vfork5); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork6); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork7); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork8); - ATF_TP_ADD_TC(tp, vfork9); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork10); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork11); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork12); - ATF_TP_ADD_TC(tp, vfork13); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork14); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork15); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork16); - - ATF_TP_ADD_TC(tp, posix_spawn1); - ATF_TP_ADD_TC(tp, posix_spawn2); - ATF_TP_ADD_TC(tp, posix_spawn3); - ATF_TP_ADD_TC(tp, posix_spawn4); - ATF_TP_ADD_TC(tp, posix_spawn5); - ATF_TP_ADD_TC(tp, posix_spawn6); - ATF_TP_ADD_TC(tp, posix_spawn7); - ATF_TP_ADD_TC(tp, posix_spawn8); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn9); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn10); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn11); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn12); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn13); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn14); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn15); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn16); - - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork1); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork2); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork3); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork4); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork5); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork6); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork7); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork8); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork9); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork10); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork11); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork12); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork13); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork14); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork15); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork16); - - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork1); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork2); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork3); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork4); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork5); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork6); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork7); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork8); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork9); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork10); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork11); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork12); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork13); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork14); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork15); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork16); - - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn1); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn2); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn3); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn4); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn5); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn6); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn7); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn8); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn9); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn10); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn11); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn12); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn13); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn14); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn15); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn16); - - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_detach_spawner); - ATF_TP_ADD_TC_HAVE_PID(tp, fork_detach_forker); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork_detach_vforker); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork_detach_vforkerdone); - - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_kill_spawner); - ATF_TP_ADD_TC_HAVE_PID(tp, fork_kill_forker); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork_kill_vforker); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork_kill_vforkerdone); - - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn_detach_spawner); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork_detach_forker); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_detach_vforker); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_detach_vforkerdone); - - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_posix_spawn_kill_spawner); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_fork_kill_forker); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_kill_vforker); - ATF_TP_ADD_TC_HAVE_PID(tp, unrelated_tracer_vfork_kill_vforkerdone); - - ATF_TP_ADD_TC(tp, traceme_vfork_fork); - ATF_TP_ADD_TC(tp, traceme_vfork_vfork); - ATF_TP_ADD_TC(tp, bytes_transfer_piod_read_d_8); ATF_TP_ADD_TC(tp, bytes_transfer_piod_read_d_16); ATF_TP_ADD_TC(tp, bytes_transfer_piod_read_d_32); @@ -7311,15 +5607,6 @@ ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TC(tp, signal_mask_unrelated); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_singalmasked); - ATF_TP_ADD_TC_HAVE_PID(tp, posix_spawn_singalignored); - ATF_TP_ADD_TC_HAVE_PID(tp, fork_singalmasked); - ATF_TP_ADD_TC_HAVE_PID(tp, fork_singalignored); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork_singalmasked); - ATF_TP_ADD_TC_HAVE_PID(tp, vfork_singalignored); - ATF_TP_ADD_TC_HAVE_PID(tp, vforkdone_singalmasked); - ATF_TP_ADD_TC_HAVE_PID(tp, vforkdone_singalignored); - ATF_TP_ADD_TC(tp, threads_and_exec); ATF_TP_ADD_TC(tp, suspend_no_deadlock); @@ -7358,6 +5645,7 @@ ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TCS_PTRACE_WAIT_KILL(); ATF_TP_ADD_TCS_PTRACE_WAIT_BYTETRANSFER(); ATF_TP_ADD_TCS_PTRACE_WAIT_CLONE(); + ATF_TP_ADD_TCS_PTRACE_WAIT_FORK(); ATF_TP_ADD_TCS_PTRACE_WAIT_AMD64(); ATF_TP_ADD_TCS_PTRACE_WAIT_I386(); |
