[PATCH v5 8/8] tests: check fd filter
Nikolay Marchuk
marchuk.nikolay.a at gmail.com
Wed Jul 19 10:26:51 UTC 2017
* tests/filtering_fd-syntax.test: New file.
* tests/filtering_fd.c: Likewise.
* tests/filtering_fd.test: Likewise.
* tests/options-syntax.test: Remove fd filtering checks.
* tests/.gitignore: Add filtering_fd.
* tests/Makefile.am (check_PROGRAMS): Add filtering_fd.
(MISC_TESTS): Add filering_fd-syntax.test, filtering_fd.test.
---
tests/.gitignore | 1 +
tests/Makefile.am | 3 +
tests/filtering_fd-syntax.test | 42 +++++++++++
tests/filtering_fd.c | 158 +++++++++++++++++++++++++++++++++++++++++
tests/filtering_fd.test | 27 +++++++
tests/options-syntax.test | 11 ---
6 files changed, 231 insertions(+), 11 deletions(-)
create mode 100755 tests/filtering_fd-syntax.test
create mode 100644 tests/filtering_fd.c
create mode 100755 tests/filtering_fd.test
diff --git a/tests/.gitignore b/tests/.gitignore
index 9bed8e8..fdc7255 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -66,6 +66,7 @@ fdatasync
file_handle
file_ioctl
filter-unavailable
+filtering_fd
finit_module
flock
fork-f
diff --git a/tests/Makefile.am b/tests/Makefile.am
index bb23343..628039a 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -86,6 +86,7 @@ check_PROGRAMS = $(PURE_EXECUTABLES) \
execve-v \
execveat-v \
filter-unavailable \
+ filtering_fd \
fork-f \
getpid \
getppid \
@@ -248,6 +249,8 @@ MISC_TESTS = \
detach-sleeping.test \
detach-stopped.test \
filter-unavailable.test \
+ filtering_fd-syntax.test \
+ filtering_fd.test \
filtering_syscall-syntax.test \
get_regs.test \
interactive_block.test \
diff --git a/tests/filtering_fd-syntax.test b/tests/filtering_fd-syntax.test
new file mode 100755
index 0000000..f67d527
--- /dev/null
+++ b/tests/filtering_fd-syntax.test
@@ -0,0 +1,42 @@
+#!/bin/sh
+#
+# Check fd set parsing syntax.
+#
+# Copyright (c) 2017 Nikolay Marchuk <marchuk.nikolay.a at gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+# derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+. "${srcdir=.}/syntax.sh"
+
+for arg in \! \!, , ,, \
+ -1 \
+ not_fd \
+ 2147483648 \
+ 4294967296 \
+ ; do
+ check_e "invalid descriptor '$arg'" -e "trace(fd $arg)"
+done
+
+check_e "invalid descriptor ''" -e "trace(fd && fd 0)"
+check_e "invalid descriptor '!'" -e "trace(fd 0,\!)"
diff --git a/tests/filtering_fd.c b/tests/filtering_fd.c
new file mode 100644
index 0000000..806aba0
--- /dev/null
+++ b/tests/filtering_fd.c
@@ -0,0 +1,158 @@
+/*
+ * Check decoding of non-standard fd filters
+ *
+ * Copyright (c) 2017 Nikolay Marchuk <marchuk.nikolay.a at gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+#include <asm/unistd.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#ifdef __NR_dup2
+void
+test_dup2(void)
+{
+ int rc = dup2(5, -1);
+ printf("dup2(5, -1) = %s\n", sprintrc(rc));
+ rc = dup2(-1, 5);
+ printf("dup2(-1, 5) = %s\n", sprintrc(rc));
+}
+#endif
+
+#ifdef __NR_linkat
+void
+test_linkat(void)
+{
+ int rc = linkat(5, "old", -1, "new", 0);
+ printf("linkat(5, \"old\", -1, \"new\", 0) = %s\n", sprintrc(rc));
+ rc = linkat(-1, "old", 5, "new", 0);
+ printf("linkat(-1, \"old\", 5, \"new\", 0) = %s\n", sprintrc(rc));
+}
+#endif
+
+#ifdef __NR_symlinkat
+void
+test_symlinkat(void)
+{
+ int rc = symlinkat("new", 5, "old");
+ printf("symlinkat(\"new\", 5, \"old\") = %s\n", sprintrc(rc));
+}
+#endif
+
+#ifdef __NR_epoll_ctl
+# include <sys/epoll.h>
+void
+test_epoll(void)
+{
+ int rc = epoll_ctl(-1, EPOLL_CTL_ADD, 5, NULL);
+ printf("epoll_ctl(-1, EPOLL_CTL_ADD, 5, NULL) = %s\n", sprintrc(rc));
+}
+#endif
+
+#if defined HAVE_SYS_FANOTIFY_H && defined HAVE_FANOTIFY_MARK && \
+ defined __NR_fanotify_mark
+# include <sys/fanotify.h>
+void
+test_fanotify_mark(void)
+{
+ int rc = fanotify_mark(-1, 0, 0, 5, ".");
+ printf("fanotify_mark(-1, 0, 0, 5, \".\") = %s\n", sprintrc(rc));
+}
+#endif
+
+#if defined __NR_select || defined __NR__newselect
+# include <sys/select.h>
+void
+test_select(void)
+{
+ fd_set readset;
+ FD_ZERO(&readset);
+ FD_SET(5, &readset);
+ int rc;
+# ifndef __NR__newselect
+ rc = syscall(__NR_select, 6, &readset, NULL, NULL, NULL);
+ printf("select(6, [5], NULL, NULL, NULL) = %s\n", sprintrc(rc));
+# else
+ rc = syscall(__NR__newselect, 6, &readset, NULL, NULL, NULL);
+ printf("_newselect(6, [5], NULL, NULL, NULL) = %s\n", sprintrc(rc));
+# endif
+}
+#endif
+
+#ifdef __NR_poll
+# include <poll.h>
+void
+test_poll(void)
+{
+ struct pollfd pfds = {.fd = 5, .events = POLLIN};
+ poll(&pfds, 1, 1);
+ printf("poll([{fd=5, events=POLLIN}], 1, 1) = 1 "
+ "([{fd=5, revents=POLLNVAL}])\n");
+}
+#endif
+
+int
+main(int argc, char **argv)
+{
+ const char *const name = argc > 1 ? argv[1] : "mmap";
+#ifdef __NR_dup2
+ test_dup2();
+#endif
+
+#ifdef __NR_linkat
+ test_linkat();
+#endif
+
+ mmap(NULL, 0, PROT_NONE, MAP_FILE, 5, 0);
+ printf("%s(NULL, 0, PROT_NONE, MAP_FILE, 5, 0) = -1 EBADF (%m)\n",
+ name);
+
+#ifdef __NR_symlinkat
+ test_symlinkat();
+#endif
+
+#ifdef __NR_epoll_ctl
+ test_epoll();
+#endif
+
+#if defined HAVE_SYS_FANOTIFY_H && defined HAVE_FANOTIFY_MARK && \
+ defined __NR_fanotify_mark
+ test_fanotify_mark();
+#endif
+
+#if defined __NR_select || defined __NR__newselect
+ test_select();
+#endif
+
+#ifdef __NR_poll
+ test_poll();
+#endif
+
+ puts("+++ exited with 0 +++");
+ return 0;
+}
diff --git a/tests/filtering_fd.test b/tests/filtering_fd.test
new file mode 100755
index 0000000..ec58f2e
--- /dev/null
+++ b/tests/filtering_fd.test
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# Check fd filtering
+
+. "${srcdir=.}/init.sh"
+
+check_prog grep
+check_prog sed
+run_prog > /dev/null
+
+syscall=
+for n in mmap mmap2; do
+ $STRACE -e$n -h > /dev/null && syscall=$syscall,$n
+done
+run_strace -e "trace(syscall $syscall && fd 5)" $args > /dev/null
+
+if grep '^mmap(NULL, 0, PROT_NONE,' < "$LOG" > /dev/null; then
+ mmap=mmap
+elif grep '^mmap2(NULL, 0, PROT_NONE,' < "$LOG" > /dev/null; then
+ mmap=mmap2
+else
+ dump_log_and_fail_with "mmap/mmap2 not found in $STRACE $args output"
+fi
+
+run_prog "../$NAME" "$mmap" > /dev/null
+run_strace -a12 -e "trace(fd 5)" $args > "$EXP"
+match_diff "$LOG" "$EXP"
diff --git a/tests/options-syntax.test b/tests/options-syntax.test
index 47f6b66..f13506e 100755
--- a/tests/options-syntax.test
+++ b/tests/options-syntax.test
@@ -37,17 +37,6 @@ check_e "Invalid process id: 'a'" -p 1,a
check_e "Syscall 'chdir' for -b isn't supported" -b chdir
check_e "Syscall 'chdir' for -b isn't supported" -b execve -b chdir
-check_e "invalid descriptor '-1'" -eread=-1
-check_e "invalid descriptor '-42'" -ewrite=-42
-check_e "invalid descriptor '2147483648'" -eread=2147483648
-check_e "invalid descriptor '4294967296'" -ewrite=4294967296
-check_e "invalid descriptor 'foo'" -eread=foo
-check_e "invalid descriptor ''" -ewrite=
-check_e "invalid descriptor ','" -eread=,
-check_e "invalid descriptor '!'" -ewrite='!'
-check_e "invalid descriptor '!'" -eread='0,!'
-check_e "invalid descriptor '!,'" -ewrite='!,'
-
check_h 'must have PROG [ARGS] or -p PID'
check_h 'PROG [ARGS] must be specified with -D' -D -p $$
check_h '-c and -C are mutually exclusive' -c -C true
--
2.1.4
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