119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/* $NetBSD: t_ptrace_misc_wait.h,v 1.1 2020/05/05 02:06:08 kamil Exp $ */
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/*-
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* Copyright (c) 2016, 2017, 2018, 2019, 2020 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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static void
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user_va0_disable(int operation)
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{
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pid_t child, 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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const int sigval = SIGSTOP;
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int rv;
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struct ptrace_siginfo info;
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if (get_user_va0_disable() == 0)
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atf_tc_skip("vm.user_va0_disable is set to 0");
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memset(&info, 0, sizeof(info));
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DPRINTF("Before forking process PID=%d\n", getpid());
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SYSCALL_REQUIRE((child = fork()) != -1);
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if (child == 0) {
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DPRINTF("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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DPRINTF("Before raising %s from child\n", strsignal(sigval));
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FORKEE_ASSERT(raise(sigval) == 0);
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/* NOTREACHED */
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FORKEE_ASSERTX(0 && "This shall not be reached");
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__unreachable();
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}
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DPRINTF("Parent process PID=%d, child's PID=%d\n", getpid(), child);
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DPRINTF("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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DPRINTF("Before calling ptrace(2) with PT_GET_SIGINFO for "
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"child\n");
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SYSCALL_REQUIRE(ptrace(PT_GET_SIGINFO, child, &info,
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sizeof(info)) != -1);
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DPRINTF("Signal traced to lwpid=%d\n", info.psi_lwpid);
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DPRINTF("Signal properties: si_signo=%#x si_code=%#x "
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"si_errno=%#x\n",
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info.psi_siginfo.si_signo, info.psi_siginfo.si_code,
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info.psi_siginfo.si_errno);
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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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DPRINTF("Before resuming the child process in PC=0x0 "
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"and without signal to be sent\n");
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errno = 0;
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rv = ptrace(operation, child, (void *)0, 0);
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ATF_REQUIRE_EQ(errno, EINVAL);
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ATF_REQUIRE_EQ(rv, -1);
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SYSCALL_REQUIRE(ptrace(PT_KILL, child, NULL, 0) != -1);
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DPRINTF("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_signaled(status, SIGKILL, 0);
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DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
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TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
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}
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#define USER_VA0_DISABLE(test, operation) \
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ATF_TC(test); \
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ATF_TC_HEAD(test, tc) \
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{ \
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atf_tc_set_md_var(tc, "descr", \
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"Verify behavior of " #operation " with PC set to 0x0"); \
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} \
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\
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ATF_TC_BODY(test, tc) \
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{ \
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\
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user_va0_disable(operation); \
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}
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USER_VA0_DISABLE(user_va0_disable_pt_continue, PT_CONTINUE)
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USER_VA0_DISABLE(user_va0_disable_pt_syscall, PT_SYSCALL)
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USER_VA0_DISABLE(user_va0_disable_pt_detach, PT_DETACH)
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#define ATF_TP_ADD_TCS_PTRACE_WAIT_MISC() \
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ATF_TP_ADD_TC(tp, user_va0_disable_pt_continue); \
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ATF_TP_ADD_TC(tp, user_va0_disable_pt_syscall); \
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ATF_TP_ADD_TC(tp, user_va0_disable_pt_detach);
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