1 files changed, 367 insertions, 0 deletions

diff --git a/framework/src/audit/audisp/plugins/remote/test-queue.c b/framework/src/audit/audisp/plugins/remote/test-queue.c
new file mode 100644
index 00000000..cbf815e8
--- /dev/null
+++ b/framework/src/audit/audisp/plugins/remote/test-queue.c
@@ -0,0 +1,367 @@
+/* test-queue.c -- test suite for persistent-queue.c
+ * Copyright 2011 Red Hat Inc., Durham, North Carolina.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Authors:
+ *   Miloslav Trmač <mitr@redhat.com>
+ */
+
+#include "config.h"
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "queue.h"
+
+#define NUM_ENTRIES 7
+/* 3*4096, larger than MAX_AUDIT_MESSAGE_LENGTH.  The same value is used in the
+   main audisp-remote code. */
+#define ENTRY_SIZE 12288
+
+static char filename[] = "/tmp/tqXXXXXX";
+static struct queue *q;
+
+static char *sample_entries[NUM_ENTRIES - 1];
+#define NUM_SAMPLE_ENTRIES (sizeof(sample_entries) / sizeof(*sample_entries))
+
+#define die(...) die__(__LINE__, __VA_ARGS__)
+static void __attribute__((format (printf, 2, 3)))
+die__(int line, const char *message, ...)
+{
+	va_list ap;
+
+	fprintf(stderr, "test-queue: %d: ", line);
+	va_start(ap, message);
+	vfprintf(stderr, message, ap);
+	va_end(ap);
+	putc('\n', stderr);
+	abort();
+}
+
+#define err(...) err__(__LINE__, __VA_ARGS__)
+static void __attribute__((format (printf, 2, 3)))
+err__(int line, const char *message, ...)
+{
+	char *errno_str;
+	va_list ap;
+
+	errno_str = strerror(errno);
+	fprintf(stderr, "test-queue: %d: ", line);
+	va_start(ap, message);
+	vfprintf(stderr, message, ap);
+	va_end(ap);
+	fprintf(stderr, ": %s\n", errno_str);
+	abort();
+}
+
+static void
+init_sample_entries(void)
+{
+	size_t i;
+
+	for (i = 0; i < NUM_SAMPLE_ENTRIES; i++) {
+		char *e;
+		size_t j, len;
+
+		len = rand() % ENTRY_SIZE;
+		e = malloc(len + 1);
+		if (e == NULL)
+			err("malloc");
+		for (j = 0; j < len; j++)
+			e[j] = rand() % CHAR_MAX + 1;
+		e[j] = '\0';
+		sample_entries[i] = e;
+	}
+}
+
+static void
+free_sample_entries(void)
+{
+	size_t i;
+
+	for (i = 0; i < NUM_SAMPLE_ENTRIES; i++)
+		free(sample_entries[i]);
+}
+
+static void
+test_q_open(void)
+{
+	struct queue *q2;
+
+	/* Test that flags are honored */
+	q2 = q_open(Q_IN_FILE | Q_CREAT | Q_EXCL, filename, NUM_ENTRIES,
+		    ENTRY_SIZE);
+	if (q2 != NULL)
+		die("q_open didn't fail");
+	if (errno != EEXIST)
+		err("q_open");
+
+	/* Test that locking is enforced.  Use a separate process because
+	   fcntl()/lockf() locking is attached to processes, not file
+	   descriptors. */
+	fflush(NULL);
+	switch (fork()) {
+	case -1:
+		err("fork");
+	case 0:
+		q2 = q_open(Q_IN_FILE, filename, NUM_ENTRIES, ENTRY_SIZE);
+		if (q2 != NULL)
+			die("q_open didn't fail");
+		if (errno != EBUSY)
+			err("q_open");
+		_exit(0);
+	default: {
+		int status;
+
+		if (wait(&status) == (pid_t)-1)
+			err("wait");
+		if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
+			die("wait status %d", status);
+	}
+	}
+}
+
+static void
+test_empty_q (void)
+{
+	char buf[ENTRY_SIZE];
+
+	if (q_peek(q, buf, sizeof(buf)) != 0)
+		die("q_peek reports non-empty");
+
+	if (q_drop_head(q) != -1)
+		die("q_drop_head didn't fail");
+	if (errno != EINVAL)
+		err("q_drop_head");
+
+	if (q_queue_length(q) != 0)
+		die("Unexpected q_queue_length");
+}
+
+static void
+test_basic_data (void)
+{
+	char buf[ENTRY_SIZE + 1];
+	int i;
+
+	if (q_append(q, " ") != 0)
+		die("q_append");
+
+	memset (buf, 'A', ENTRY_SIZE);
+	buf[ENTRY_SIZE] = '\0';
+	if (q_append(q, buf) != -1)
+		die("q_append didn't fail");
+	if (errno != EINVAL)
+		err("q_append");
+
+	buf[ENTRY_SIZE - 1] = '\0';
+	if (q_append(q, buf) != 0)
+		die("q_append");
+
+	if (q_queue_length(q) != 2)
+		die("Unexpected q_queue_length");
+
+	if (q_peek(q, buf, sizeof(buf)) < 1)
+		err("q_peek");
+	if (strcmp(buf, " ") != 0)
+		die("invalid data returned");
+	if (q_drop_head(q) != 0)
+		err("q_drop_head");
+
+	if (q_peek(q, buf, ENTRY_SIZE - 1) != -1)
+		err("q_peek didn't fail");
+	if (errno != ERANGE)
+		err("q_peek");
+	for (i = 0; i < 2; i++) {
+		size_t j;
+
+		if (q_peek(q, buf, sizeof(buf)) < 1)
+			err("q_peek");
+		for (j = 0; j < ENTRY_SIZE - 1; j++) {
+			if (buf[j] != 'A')
+				die("invalid data at %zu", j);
+		}
+		if (buf[j] != '\0')
+			die("invalid data at %zu", j);
+	}
+	if (q_drop_head(q) != 0)
+		err("q_drop_head");
+
+	if (q_queue_length(q) != 0)
+		die("Unexpected q_queue_length");
+}
+
+static void
+append_sample_entries(size_t count)
+{
+	size_t i;
+
+	for (i = 0; i < count; i++) {
+		if (q_append(q, sample_entries[i % NUM_SAMPLE_ENTRIES]) != 0)
+			die("q_append %zu", i);
+	}
+}
+
+static void
+verify_sample_entries(size_t count)
+{
+	char buf[ENTRY_SIZE + 1];
+	size_t i;
+
+	if (q_queue_length(q) != count)
+		die("Unexpected q_queue_length");
+	for (i = 0; i < count; i++) {
+		if (q_peek(q, buf, sizeof(buf)) < 1)
+			err("q_peek %zu", i);
+		if (strcmp(buf, sample_entries[i % NUM_SAMPLE_ENTRIES]) != 0)
+			die("invalid data %zu", i);
+		if (q_drop_head(q) != 0)
+			err("q_drop_head");
+	}
+	if (q_peek(q, buf, sizeof(buf)) != 0)
+		die("q_peek reports non-empty");
+}
+
+static void
+test_run(int flags)
+{
+	size_t j;
+
+	q = q_open(flags | Q_CREAT | Q_EXCL, filename, NUM_ENTRIES, ENTRY_SIZE);
+	if (q == NULL)
+		err("q_open");
+
+	if ((flags & Q_IN_FILE) != 0)
+		test_q_open();
+
+	/* Do this enough times to get a wraparound */
+	for (j = 0; j < NUM_ENTRIES; j++) {
+		test_empty_q();
+		test_basic_data();
+	}
+
+	append_sample_entries(NUM_ENTRIES - 1);
+	if (q_queue_length(q) != NUM_ENTRIES - 1)
+		die("Unexpected q_queue_length");
+
+	q_close(q);
+
+	q = q_open(flags, filename, NUM_ENTRIES, ENTRY_SIZE);
+	if (q == NULL)
+		err("q_open");
+	if ((flags & Q_IN_FILE) != 0)
+		/* Test that the queue can be reopened and data has been
+		   preserved. */
+		verify_sample_entries(NUM_ENTRIES - 1);
+	else
+		/* Test that a new in-memory queue is empty. */
+		verify_sample_entries(0);
+	q_close(q);
+
+	if ((flags & Q_IN_FILE) != 0 && unlink(filename) != 0)
+		err("unlink");
+}
+
+static void
+test_resizing(void)
+{
+	q = q_open(Q_IN_FILE | Q_CREAT | Q_EXCL, filename, NUM_ENTRIES,
+		   ENTRY_SIZE);
+	if (q == NULL)
+		err("q_open");
+
+	append_sample_entries(NUM_ENTRIES);
+	if (q_queue_length(q) != NUM_ENTRIES)
+		die("Unexpected q_queue_length");
+
+	q_close(q);
+
+	/* Verify num_entries is validated */
+	q = q_open(Q_IN_FILE, filename, NUM_ENTRIES + 1, ENTRY_SIZE);
+	if (q != NULL)
+		die("q_open didn't fail");
+	if (errno != EINVAL)
+		err("q_open");
+	q = q_open(Q_IN_FILE, filename, NUM_ENTRIES - 1, ENTRY_SIZE);
+	if (q != NULL)
+		die("q_open didn't fail");
+	if (errno != EINVAL)
+		err("q_open");
+
+	/* Test increasing size */
+	q = q_open(Q_IN_FILE | Q_RESIZE, filename, 2 * NUM_ENTRIES, ENTRY_SIZE);
+	if (q == NULL)
+		err("q_open");
+	verify_sample_entries(NUM_ENTRIES);
+
+	append_sample_entries(NUM_ENTRIES);
+	q_close(q);
+
+	/* Test decreasing size */
+	q = q_open(Q_IN_FILE | Q_RESIZE, filename, NUM_ENTRIES / 2, ENTRY_SIZE);
+	if (q != NULL)
+		die("q_open didn't fail");
+	if (errno != ENOSPC)
+		err("q_open");
+	q = q_open(Q_IN_FILE | Q_RESIZE, filename, NUM_ENTRIES, ENTRY_SIZE);
+	if (q == NULL)
+		err("q_open");
+	verify_sample_entries(NUM_ENTRIES);
+	q_close(q);
+
+	if (unlink(filename) != 0)
+		err("unlink");
+}
+
+int
+main(void)
+{
+	static const int flags[] = {
+		Q_IN_MEMORY,
+		Q_IN_FILE,
+		Q_IN_FILE | Q_SYNC,
+		Q_IN_MEMORY | Q_IN_FILE
+	};
+
+	int fd;
+	size_t i;
+
+	init_sample_entries();
+
+	/* We really want tmpnam() here (safe due to the Q_EXCL below), but
+	   gcc warns on any use of tmpnam(). */
+	fd = mkstemp(filename);
+	if (fd == -1)
+		err("tmpnam");
+	if (close(fd) != 0)
+		err("close");
+	if (unlink(filename) != 0)
+		err("unlink");
+
+	for (i = 0; i < sizeof(flags) / sizeof(*flags); i++)
+		test_run(flags[i]);
+
+	test_resizing();
+
+	free_sample_entries();
+
+	return EXIT_SUCCESS;
+}