Module Name: src
Committed By: kamil
Date: Tue Apr 30 22:39:31 UTC 2019
Modified Files:
src/tests/lib/libc/sys: t_ptrace_wait.c
Log Message:
Add new ATF ptrace(2) tests: bytes_transfer_eof
Assert that error is returned after attempt to read or write post EOF.
To generate a diff of this commit:
cvs rdiff -u -r1.114 -r1.115 src/tests/lib/libc/sys/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/lib/libc/sys/t_ptrace_wait.c
diff -u src/tests/lib/libc/sys/t_ptrace_wait.c:1.114 src/tests/lib/libc/sys/t_ptrace_wait.c:1.115
--- src/tests/lib/libc/sys/t_ptrace_wait.c:1.114 Thu Apr 25 19:15:23 2019
+++ src/tests/lib/libc/sys/t_ptrace_wait.c Tue Apr 30 22:39:31 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: t_ptrace_wait.c,v 1.114 2019/04/25 19:15:23 kamil Exp $ */
+/* $NetBSD: t_ptrace_wait.c,v 1.115 2019/04/30 22:39:31 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 1.114 2019/04/25 19:15:23 kamil Exp $");
+__RCSID("$NetBSD: t_ptrace_wait.c,v 1.115 2019/04/30 22:39:31 kamil Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -3931,6 +3931,157 @@ BYTES_TRANSFER_ALIGNMENT(bytes_transfer_
/// ----------------------------------------------------------------------------
+static void
+bytes_transfer_eof(const char *operation)
+{
+ const int exitval = 5;
+ const int sigval = SIGSTOP;
+ pid_t child, wpid;
+#if defined(TWAIT_HAVE_STATUS)
+ int status;
+#endif
+ FILE *fp;
+ char *p;
+ int vector;
+ int op;
+
+ struct ptrace_io_desc io;
+ struct ptrace_siginfo info;
+
+ memset(&io, 0, sizeof(io));
+ memset(&info, 0, sizeof(info));
+
+ vector = 0;
+
+ fp = tmpfile();
+ ATF_REQUIRE(fp != NULL);
+
+ p = mmap(0, 1, PROT_READ|PROT_WRITE, MAP_PRIVATE, fileno(fp), 0);
+ ATF_REQUIRE(p != MAP_FAILED);
+
+ 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);
+
+ 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("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);
+
+ ATF_REQUIRE_EQ(info.psi_siginfo.si_signo, sigval);
+ ATF_REQUIRE_EQ(info.psi_siginfo.si_code, SI_LWP);
+
+ if (strcmp(operation, "PT_READ_I") == 0 ||
+ strcmp(operation, "PT_READ_D") == 0) {
+ if (strcmp(operation, "PT_READ_I"))
+ op = PT_READ_I;
+ else
+ op = PT_READ_D;
+
+ errno = 0;
+ SYSCALL_REQUIRE(ptrace(op, child, p, 0) == -1);
+ ATF_REQUIRE_EQ(errno, EINVAL);
+ } else if (strcmp(operation, "PT_WRITE_I") == 0 ||
+ strcmp(operation, "PT_WRITE_D") == 0) {
+ if (strcmp(operation, "PT_WRITE_I"))
+ op = PT_WRITE_I;
+ else
+ op = PT_WRITE_D;
+
+ errno = 0;
+ SYSCALL_REQUIRE(ptrace(op, child, p, vector) == -1);
+ ATF_REQUIRE_EQ(errno, EINVAL);
+ } else if (strcmp(operation, "PIOD_READ_I") == 0 ||
+ strcmp(operation, "PIOD_READ_D") == 0) {
+ if (strcmp(operation, "PIOD_READ_I"))
+ op = PIOD_READ_I;
+ else
+ op = PIOD_READ_D;
+
+ io.piod_op = op;
+ io.piod_addr = &vector;
+ io.piod_len = sizeof(int);
+ io.piod_offs = p;
+
+ errno = 0;
+ SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, sizeof(io)) == -1);
+ ATF_REQUIRE_EQ(errno, EINVAL);
+ } else if (strcmp(operation, "PIOD_WRITE_I") == 0 ||
+ strcmp(operation, "PIOD_WRITE_D") == 0) {
+ if (strcmp(operation, "PIOD_WRITE_I"))
+ op = PIOD_WRITE_I;
+ else
+ op = PIOD_WRITE_D;
+
+ io.piod_op = op;
+ io.piod_addr = &vector;
+ io.piod_len = sizeof(int);
+ io.piod_offs = p;
+
+ errno = 0;
+ SYSCALL_REQUIRE(ptrace(PT_IO, child, &io, sizeof(io)) == -1);
+ ATF_REQUIRE_EQ(errno, EINVAL);
+ }
+
+ 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\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_SUCCESS(wpid = TWAIT_GENERIC(child, &status, 0),
+ child);
+
+ DPRINTF("Before calling %s() for the child\n", TWAIT_FNAME);
+ TWAIT_REQUIRE_FAILURE(ECHILD, wpid = TWAIT_GENERIC(child, &status, 0));
+}
+
+#define BYTES_TRANSFER_EOF(test, operation) \
+ATF_TC(test); \
+ATF_TC_HEAD(test, tc) \
+{ \
+ atf_tc_set_md_var(tc, "descr", \
+ "Verify bytes EOF byte transfer for the " operation \
+ " operation"); \
+} \
+ \
+ATF_TC_BODY(test, tc) \
+{ \
+ \
+ bytes_transfer_eof(operation); \
+}
+
+BYTES_TRANSFER_EOF(bytes_transfer_eof_pt_read_i, "PT_READ_I")
+BYTES_TRANSFER_EOF(bytes_transfer_eof_pt_read_d, "PT_READ_D")
+BYTES_TRANSFER_EOF(bytes_transfer_eof_pt_write_i, "PT_WRITE_I")
+BYTES_TRANSFER_EOF(bytes_transfer_eof_pt_write_d, "PT_WRITE_D")
+
+BYTES_TRANSFER_EOF(bytes_transfer_eof_piod_read_i, "PIOD_READ_I")
+BYTES_TRANSFER_EOF(bytes_transfer_eof_piod_read_d, "PIOD_READ_D")
+BYTES_TRANSFER_EOF(bytes_transfer_eof_piod_write_i, "PIOD_WRITE_I")
+BYTES_TRANSFER_EOF(bytes_transfer_eof_piod_write_d, "PIOD_WRITE_D")
+
+/// ----------------------------------------------------------------------------
+
#if defined(HAVE_GPREGS) || defined(HAVE_FPREGS)
static void
access_regs(const char *regset, const char *aux)
@@ -7399,6 +7550,16 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC(tp, bytes_transfer_alignment_piod_read_auxv);
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_pt_read_i);
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_pt_read_d);
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_pt_write_i);
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_pt_write_d);
+
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_piod_read_i);
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_piod_read_d);
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_piod_write_i);
+ ATF_TP_ADD_TC(tp, bytes_transfer_eof_piod_write_d);
+
ATF_TP_ADD_TC_HAVE_GPREGS(tp, access_regs1);
ATF_TP_ADD_TC_HAVE_GPREGS(tp, access_regs2);
ATF_TP_ADD_TC_HAVE_GPREGS(tp, access_regs3);
