Add new test siginfo5 in t_ptrace_wait{,3,4,6,id,pid}
siginfo5:
Verify that fork(2) is intercepted by ptrace(2) with EVENT_MASK
set to PTRACE_FORK and reports correct signal information
Sponsored by <The NetBSD Foundation>
This commit is contained in:
kamil
parent
189ca4b8c7
commit
d7bca94546
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@ -1,4 +1,4 @@
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/* $NetBSD: t_ptrace_wait.c,v 1.51 2017/01/09 22:09:20 kamil Exp $ */
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/* $NetBSD: t_ptrace_wait.c,v 1.52 2017/01/10 00:54:22 kamil Exp $ */
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/*-
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* Copyright (c) 2016 The NetBSD Foundation, Inc.
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@ -27,7 +27,7 @@
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_ptrace_wait.c,v 1.51 2017/01/09 22:09:20 kamil Exp $");
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__RCSID("$NetBSD: t_ptrace_wait.c,v 1.52 2017/01/10 00:54:22 kamil Exp $");
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#include <sys/param.h>
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#include <sys/types.h>
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@ -4753,6 +4753,161 @@ ATF_TC_BODY(siginfo4, tc)
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TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
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}
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#if defined(TWAIT_HAVE_PID)
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ATF_TC(siginfo5);
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ATF_TC_HEAD(siginfo5, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"Verify that fork(2) is intercepted by ptrace(2) with EVENT_MASK "
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"set to PTRACE_FORK and reports correct signal information");
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}
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ATF_TC_BODY(siginfo5, tc)
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{
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const int exitval = 5;
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const int exitval2 = 15;
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const int sigval = SIGSTOP;
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pid_t child, child2, wpid;
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#if defined(TWAIT_HAVE_STATUS)
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int status;
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#endif
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ptrace_state_t state;
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const int slen = sizeof(state);
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ptrace_event_t event;
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const int elen = sizeof(event);
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struct ptrace_siginfo info;
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memset(&info, 0, sizeof(info));
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printf("Before forking process PID=%d\n", getpid());
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ATF_REQUIRE((child = fork()) != -1);
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if (child == 0) {
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printf("Before calling PT_TRACE_ME from child %d\n", getpid());
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FORKEE_ASSERT(ptrace(PT_TRACE_ME, 0, NULL, 0) != -1);
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printf("Before raising %s from child\n", strsignal(sigval));
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FORKEE_ASSERT(raise(sigval) == 0);
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FORKEE_ASSERT((child2 = fork()) != 1);
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if (child2 == 0)
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_exit(exitval2);
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FORKEE_REQUIRE_SUCCESS
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(wpid = TWAIT_GENERIC(child2, &status, 0), child2);
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forkee_status_exited(status, exitval2);
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printf("Before exiting of the child process\n");
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_exit(exitval);
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}
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printf("Parent process PID=%d, child's PID=%d\n", getpid(), child);
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printf("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_stopped(status, sigval);
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printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
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ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
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printf("Before checking siginfo_t\n");
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ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, sigval);
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, SI_LWP);
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printf("Enable PTRACE_FORK in EVENT_MASK for the child %d\n", child);
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event.pe_set_event = PTRACE_FORK;
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ATF_REQUIRE(ptrace(PT_SET_EVENT_MASK, child, &event, elen) != -1);
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printf("Before resuming the child process where it left off and "
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"without signal to be sent\n");
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ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
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printf("Before calling %s() for the child %d\n", TWAIT_FNAME, child);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_stopped(status, SIGTRAP);
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printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
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ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
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printf("Before checking siginfo_t\n");
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ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, SIGTRAP);
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, TRAP_CHLD);
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ATF_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child, &state, slen) != -1);
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ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_FORK);
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child2 = state.pe_other_pid;
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printf("Reported PTRACE_FORK event with forkee %d\n", child2);
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printf("Before calling %s() for the forkee %d of the child %d\n",
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TWAIT_FNAME, child2, child);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0),
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child2);
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validate_status_stopped(status, SIGTRAP);
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printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
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ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
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printf("Before checking siginfo_t\n");
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ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, SIGTRAP);
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, TRAP_CHLD);
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ATF_REQUIRE(ptrace(PT_GET_PROCESS_STATE, child2, &state, slen) != -1);
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ATF_REQUIRE_EQ(state.pe_report_event, PTRACE_FORK);
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ATF_REQUIRE_EQ(state.pe_other_pid, child);
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printf("Before resuming the forkee process where it left off and "
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"without signal to be sent\n");
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ATF_REQUIRE(ptrace(PT_CONTINUE, child2, (void *)1, 0) != -1);
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printf("Before resuming the child process where it left off and "
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"without signal to be sent\n");
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ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
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printf("Before calling %s() for the forkee - expected exited\n",
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TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child2, &status, 0),
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child2);
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validate_status_exited(status, exitval2);
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printf("Before calling %s() for the forkee - expected no process\n",
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TWAIT_FNAME);
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TWAIT_REQUIRE_FAILURE(ECHILD,
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wpid = TWAIT_GENERIC(child2, &status, 0));
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printf("Before calling %s() for the child - expected stopped "
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"SIGCHLD\n", TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_stopped(status, SIGCHLD);
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printf("Before calling ptrace(2) with PT_GET_SIGINFO for child\n");
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ATF_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info, sizeof(info)) != -1);
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printf("Before checking siginfo_t\n");
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ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, SIGCHLD);
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, CLD_EXITED);
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printf("Before resuming the child process where it left off and "
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"without signal to be sent\n");
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ATF_REQUIRE(ptrace(PT_CONTINUE, child, (void *)1, 0) != -1);
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printf("Before calling %s() for the child - expected exited\n",
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TWAIT_FNAME);
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TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0), child);
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validate_status_exited(status, exitval);
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printf("Before calling %s() for the child - expected no process\n",
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TWAIT_FNAME);
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TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
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}
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#endif
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ATF_TP_ADD_TCS(tp)
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{
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setvbuf(stdout, NULL, _IONBF, 0);
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@ -4839,6 +4994,7 @@ ATF_TP_ADD_TCS(tp)
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ATF_TP_ADD_TC(tp, siginfo2);
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ATF_TP_ADD_TC(tp, siginfo3);
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ATF_TP_ADD_TC(tp, siginfo4);
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ATF_TP_ADD_TC_HAVE_PID(tp, siginfo5);
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return atf_no_error();
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}
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