Module Name: src
Committed By: kamil
Date: Tue Nov 15 02:53:32 UTC 2016
Modified Files:
src/tests/kernel: t_ptrace_wait.c
Log Message:
Add eventmask1 and eventmask2 in t_ptrace_wait*
Add basic tests verifying that value between PT_SET_EVENT_MASK and
PT_GET_EVENT_MASK is preserved between two ptrace(2) calls.
eventmask1: Verify that empty EVENT_MASK is preserved
eventmask2: Verify that PTRACE_FORK in EVENT_MASK is preserved
Currently the only supported event in ptrace(2) is PTRACE_FORK.
These tests are appropriate for all wait(2)-like functions.
Sponsored by <The NetBSD Foundation>
To generate a diff of this commit:
cvs rdiff -u -r1.14 -r1.15 src/tests/kernel/t_ptrace_wait.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/tests/kernel/t_ptrace_wait.c
diff -u src/tests/kernel/t_ptrace_wait.c:1.14 src/tests/kernel/t_ptrace_wait.c:1.15
--- src/tests/kernel/t_ptrace_wait.c:1.14 Tue Nov 15 02:20:50 2016
+++ src/tests/kernel/t_ptrace_wait.c Tue Nov 15 02:53:32 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_wait.c,v 1.14 2016/11/15 02:20:50 kamil Exp $ */
+/* $NetBSD: t_ptrace_wait.c,v 1.15 2016/11/15 02:53:32 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: t_ptrace_wait.c,v 1.14 2016/11/15 02:20:50 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.15 2016/11/15 02:53:32 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -1487,6 +1487,116 @@ ATF_TC_BODY(attach7, tc)
}
#endif
+ATF_TC(eventmask1);
+ATF_TC_HEAD(eventmask1, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify that empty EVENT_MASK is preserved");
+}
+
+ATF_TC_BODY(eventmask1, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ ptrace_event_t set_event, get_event;
+ const int len = sizeof(ptrace_event_t);
+
+ printf("Before forking process PID=%d\n", getpid());
+ child = atf_utils_fork();
+ if (child == 0) {
+ printf("Before calling PT_TRACE_ME from child %d\n", getpid());
+ FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
+
+ printf("Before raising %s from child\n", strsignal(sigval));
+ FORKEE_ASSERT(raise(sigval) == 0);
+
+ printf("Before exiting of the child process\n");
+ _exit(exitval);
+ }
+ printf("Parent process PID=%d, child's PID=%d\n", getpid(), child);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_stopped(status, sigval);
+
+ set_event.pe_set_event = 0;
+ ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &set_event, len) != -1);
+ ATF_REQUIRE(ptrace(PT_GET_EVENT_MASK, child, &get_event, len) != -1);
+ ATF_REQUIRE(memcmp(&set_event, &get_event, len) == 0);
+
+ printf("Before resuming the child process where it left off and "
+ "without signal to be sent\n");
+ ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_exited(status, exitval);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+
+ATF_TC(eventmask2);
+ATF_TC_HEAD(eventmask2, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "Verify that PTRACE_FORK in EVENT_MASK is preserved");
+}
+
+ATF_TC_BODY(eventmask2, tc)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ ptrace_event_t set_event, get_event;
+ const int len = sizeof(ptrace_event_t);
+
+ printf("Before forking process PID=%d\n", getpid());
+ child = atf_utils_fork();
+ if (child == 0) {
+ printf("Before calling PT_TRACE_ME from child %d\n", getpid());
+ FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
+
+ printf("Before raising %s from child\n", strsignal(sigval));
+ FORKEE_ASSERT(raise(sigval) == 0);
+
+ printf("Before exiting of the child process\n");
+ _exit(exitval);
+ }
+ printf("Parent process PID=%d, child's PID=%d\n", getpid(), child);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_stopped(status, sigval);
+
+ set_event.pe_set_event = PTRACE_FORK;
+ ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &set_event, len) != -1);
+ ATF_REQUIRE(ptrace(PT_GET_EVENT_MASK, child, &get_event, len) != -1);
+ ATF_REQUIRE(memcmp(&set_event, &get_event, len) == 0);
+
+ printf("Before resuming the child process where it left off and "
+ "without signal to be sent\n");
+ ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
+
+ validate_status_exited(status, exitval);
+
+ printf("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+
#if defined(TWAIT_HAVE_PID)
#define ATF_TP_ADD_TC_HAVE_PID(a,b) ATF_TP_ADD_TC(a,b)
#else
@@ -1510,5 +1620,8 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC_HAVE_PID(tp, attach6);
ATF_TP_ADD_TC_HAVE_PID(tp, attach7);
+ ATF_TP_ADD_TC(tp, eventmask1);
+ ATF_TP_ADD_TC(tp, eventmask2);
+
return atf_no_error();
}
