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src: ATF: ptrace: Merge code in fork2 and vfork2 tests with (v)f...
details: https://anonhg.NetBSD.org/src/rev/2547b0c5c2d5
branches: trunk
changeset: 318001:2547b0c5c2d5
user: kamil <kamil%NetBSD.org@localhost>
date: Tue Apr 10 00:40:35 2018 +0000
description:
ATF: ptrace: Merge code in fork2 and vfork2 tests with (v)fork1 ones
Reduce code duplication, use the same function body with conditional
switches.
Sponsored by <The NetBSD Foundation>
diffstat:
tests/lib/libc/sys/t_ptrace_wait.c | 318 +++++++++++-------------------------
1 files changed, 102 insertions(+), 216 deletions(-)
diffs (truncated from 388 to 300 lines):
diff -r eded288330fc -r 2547b0c5c2d5 tests/lib/libc/sys/t_ptrace_wait.c
--- a/tests/lib/libc/sys/t_ptrace_wait.c Tue Apr 10 00:09:31 2018 +0000
+++ b/tests/lib/libc/sys/t_ptrace_wait.c Tue Apr 10 00:40:35 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_wait.c,v 1.28 2018/04/10 00:09:31 kamil Exp $ */
+/* $NetBSD: t_ptrace_wait.c,v 1.29 2018/04/10 00:40:35 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.28 2018/04/10 00:09:31 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.29 2018/04/10 00:40:35 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -1321,9 +1321,8 @@
TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
}
-#if defined(TWAIT_HAVE_PID)
static void
-fork_test(bool regular)
+fork_test(bool regular, bool track_event)
{
const int exitval = 5;
const int exitval2 = 15;
@@ -1332,12 +1331,14 @@
#if defined(TWAIT_HAVE_STATUS)
int status;
#endif
+#if defined(TWAIT_HAVE_PID)
ptrace_state_t state;
const int slen = sizeof(state);
+#endif
ptrace_event_t event;
const int elen = sizeof(event);
- if (!regular) {
+ if (!regular && track_event) {
atf_tc_expect_fail("PR kern/51630");
}
@@ -1370,158 +1371,77 @@
validate_status_stopped(status, sigval);
- DPRINTF("Enable PTRACE_%sFORK in EVENT_MASK for the child %d\n",
- regular ? "" : "V", child);
- event.pe_set_event = regular ? PTRACE_FORK : PTRACE_VFORK;
+ DPRINTF("%s PTRACE_%sFORK in EVENT_MASK for the child %d\n",
+ track_event ? "Enable" : "Disable", regular ? "" : "V", child);
+ event.pe_set_event = track_event ? (regular ? PTRACE_FORK : PTRACE_VFORK) : 0;
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");
- DPRINTF("We expect two SIGTRAP events, for child %d (TRAP_CHLD, "
- "pe_report_event=PTRACE_%sFORK, state.pe_other_pid=child2) and "
- "for child2 (TRAP_CHLD, pe_report_event=PTRACE_%sFORK, "
- "state.pe_other_pid=child)\n", child, regular ? "" : "V",
- regular ? "" : "V");
- 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);
- ATF_REQUIRE_EQ(state.pe_report_event,
- regular ? PTRACE_FORK : PTRACE_VFORK);
-
- child2 = state.pe_other_pid;
- DPRINTF("Reported PTRACE_%sFORK event with forkee %d\n",
- regular ? "" : "V", 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);
- ATF_REQUIRE_EQ(state.pe_report_event,
- regular ? PTRACE_FORK : 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);
-
- 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");
+ if (track_event) {
+ DPRINTF("We expect two SIGTRAP events, for child %d "
+ "(TRAP_CHLD, pe_report_event=PTRACE_%sFORK, "
+ "state.pe_other_pid=child2) and for child2 "
+ "(TRAP_CHLD, pe_report_event=PTRACE_%sFORK, "
+ "state.pe_other_pid=child)\n", child,
+ regular ? "" : "V", regular ? "" : "V");
+ }
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));
-}
-
-ATF_TC(fork1);
-ATF_TC_HEAD(fork1, tc)
-{
- atf_tc_set_md_var(tc, "descr",
- "Verify that fork(2) is intercepted by ptrace(2) with EVENT_MASK "
- "set to PTRACE_FORK");
-}
-
-ATF_TC_BODY(fork1, tc)
-{
-
- fork_test(true);
-}
+#if defined(TWAIT_HAVE_PID)
+ if (track_event) {
+ 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,
+ regular ? PTRACE_FORK : PTRACE_VFORK);
+
+ child2 = state.pe_other_pid;
+ DPRINTF("Reported PTRACE_%sFORK event with forkee %d\n",
+ regular ? "" : "V", 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);
+ ATF_REQUIRE_EQ(state.pe_report_event,
+ regular ? PTRACE_FORK : 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);
+
+ 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
-ATF_TC(fork2);
-ATF_TC_HEAD(fork2, tc)
-{
- atf_tc_set_md_var(tc, "descr",
- "Verify that fork(2) is not intercepted by ptrace(2) with empty "
- "EVENT_MASK");
-}
-
-ATF_TC_BODY(fork2, tc)
-{
- const int exitval = 5;
- const int exitval2 = 15;
- const int sigval = SIGSTOP;
- pid_t child, child2, wpid;
-#if defined(TWAIT_HAVE_STATUS)
- int status;
-#endif
- ptrace_event_t event;
- const int elen = sizeof(event);
-
- 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);
-
- FORKEE_ASSERT((child2 = fork()) != -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 empty EVENT_MASK for the child %d\n", child);
- event.pe_set_event = 0;
- 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 - expected stopped "
"SIGCHLD\n", TWAIT_FNAME);
TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
@@ -1544,6 +1464,36 @@
}
#if defined(TWAIT_HAVE_PID)
+ATF_TC(fork1);
+ATF_TC_HEAD(fork1, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify that fork(2) is intercepted by ptrace(2) with EVENT_MASK "
+ "set to PTRACE_FORK");
+}
+
+ATF_TC_BODY(fork1, tc)
+{
+
+ fork_test(true, true);
+}
+#endif
+
+ATF_TC(fork2);
+ATF_TC_HEAD(fork2, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify that fork(2) is not intercepted by ptrace(2) with empty "
+ "EVENT_MASK");
+}
+
+ATF_TC_BODY(fork2, tc)
+{
+
+ fork_test(true, false);
+}
+
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