Merge Perforce change 93572 from TrustedBSD audit3 branch:

Simple audit pipe ioctl regression test.

Obtained from:	TrustedBSD Project

tools/regression/audit/audit_pipe_ioctl/Makefile

@@ -0,0 +1,9 @@
+#
+# $FreeBSD$
+#
+
+PROG=	audit_pipe_ioctl
+NO_MAN=	yes
+WARNS?=	2
+
+.include <bsd.prog.mk>

tools/regression/audit/audit_pipe_ioctl/audit_pipe_ioctl.c

@@ -0,0 +1,143 @@
+/*-
+ * Copyright (c) 2006 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * This software was developed by Robert Watson for the TrustedBSD Project.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Simple audit pipe regression test to confirm that the ioctls for queue
+ * limit information basically work.  No attempt is made to validate the
+ * queue length returned, however.
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include <security/audit/audit_ioctl.h>
+
+#include <err.h>
+#include <fcntl.h>
+
+int
+main(int argc, char *argv[])
+{
+	u_int len, minlen, maxlen;
+	u_int64_t astat;
+	int fd;
+
+	fd = open("/dev/auditpipe", O_RDONLY);
+	if (fd < 0)
+		err(-1, "/dev/auditpipe");
+
+	/*
+	 * First, test that we can read the queue length, queue limit, and
+	 * bounds on queue length limits.
+	 */
+	len = (u_int)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_QLEN, &len) < 0)
+		err(-1, "AUDITPIPE_GET_QLEN");
+	if (len == (u_int)(-1))
+		errx(-1, "AUDITPIPE_GET_QLEN: unchanged");
+
+	minlen = (u_int)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_QLIMIT_MIN, &minlen) < 0)
+		err(-1, "AUDITPIPE_GET_QLIMIT_MIN");
+	if (minlen == (u_int)(-1))
+		errx(-1, "AUDITPIPE_GET_QLIMIT_MIN: unchanged");
+
+	maxlen = (u_int)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_QLIMIT_MAX, &maxlen) < 0)
+		err(-1, "AUDITPIPE_GET_QLIMIT_MAX");
+	if (maxlen == (u_int)(-1))
+		errx(-1, "AUDITPIPE_GET_QLIMIT_MAX: unchanged");
+
+	len = (u_int)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_QLIMIT, &len) < 0)
+		err(-1, "AUDITPIPE_GET_QLIMIT");
+	if (len == (u_int)(-1))
+		errx(-1, "AUDITPIPE_GET_QLIMIT: unchanged");
+
+	if (!(len >= minlen))
+		errx(-1, "queue length < minlen");
+
+	if (!(len <= maxlen))
+		errx(-1, "queue length > maxlen");
+
+	/*
+	 * Try setting the queue length to first minimum, then maximum
+	 * lengths.  Query after each to make sure it changed.
+	 */
+	len = minlen;
+	if (ioctl(fd, AUDITPIPE_SET_QLIMIT, &len) < 0)
+		err(-1, "AUDITPIPE_SET_QLIMIT(min)");
+
+	if (ioctl(fd, AUDITPIPE_GET_QLIMIT, &len) < 0)
+		err(-1, "AUDITPIPE_GET_QLIMIT");
+
+	if (len != minlen)
+		errx(-1, "set to minlen didn't work");
+
+	len = maxlen;
+	if (ioctl(fd, AUDITPIPE_SET_QLIMIT, &len) < 0)
+		err(-1, "AUDITPIPE_SET_QLIMIT(max)");
+
+	if (ioctl(fd, AUDITPIPE_GET_QLIMIT, &len) < 0)
+		err(-1, "AUDITPIPE_GETQLIMIT");
+
+	if (len != maxlen)
+		errx(-1, "set to maxlen didn't work");
+
+	/*
+	 * Check that we can query the defined stats.  No attempt to
+	 * validate.
+	 */
+	astat = (u_int64_t)(int64_t)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_INSERTS, &astat) < 0)
+		err(-1, "AUDITPIPE_GET_INSERTS");
+	if (astat == (u_int64_t)(int64_t)(-1))
+		errx(-1, "AUDITPIPE_GET_INSERTS: unchanged");
+
+	astat = (u_int64_t)(int64_t)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_READS, &astat) < 0)
+		err(-1, "AUDITPIPE_GET_READS");
+	if (astat == (u_int64_t)(int64_t)(-1))
+		errx(-1, "AUDITPIPE_GET_READS: unchanged");
+
+	astat = (u_int64_t)(int64_t)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_DROPS, &astat) < 0)
+		err(-1, "AUDITPIPE_GET_DROPS");
+	if (astat == (u_int64_t)(int64_t)(-1))
+		errx(-1, "AUDITPIPE_GET_DROPS: unchanged");
+
+	astat = (u_int64_t)(int64_t)(-1);
+	if (ioctl(fd, AUDITPIPE_GET_TRUNCATES, &astat) < 0)
+		err(-1, "AUDITPIPE_GET_TRUNCATES");
+	if (astat == (u_int64_t)(int64_t)(-1))
+		errx(-1, "AUDITPIPE_GET_TRUNCATES: unchanged");
+
+	return (0);
+}