1 files changed, 97 insertions, 0 deletions
diff --git a/sys/cddl/dev/dtrace/dtrace_sysctl.c b/sys/cddl/dev/dtrace/dtrace_sysctl.c
new file mode 100644
index 000000000000..87fa705e2d96
--- /dev/null
+++ b/sys/cddl/dev/dtrace/dtrace_sysctl.c
@@ -0,0 +1,97 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ *
+ * $FreeBSD$
+ *
+ */
+
+/* Report registered DTrace providers. */
+static int
+sysctl_dtrace_providers(SYSCTL_HANDLER_ARGS)
+{
+	char	*p_name	= NULL;
+	dtrace_provider_t
+		*prov	= dtrace_provider;
+	int	error	= 0;
+	size_t	len	= 0;
+
+	mutex_enter(&dtrace_provider_lock);
+	mutex_enter(&dtrace_lock);
+
+	/* Compute the length of the space-separated provider name string. */
+	while (prov != NULL) {
+		len += strlen(prov->dtpv_name) + 1;
+		prov = prov->dtpv_next;
+	}
+
+	if ((p_name = kmem_alloc(len, KM_SLEEP)) == NULL)
+		error = ENOMEM;
+	else {
+		/* Start with an empty string. */
+		*p_name = '\0';
+
+		/* Point to the first provider again. */
+		prov = dtrace_provider;
+
+		/* Loop through the providers, appending the names. */
+		while (prov != NULL) {
+			if (prov != dtrace_provider)
+				(void) strlcat(p_name, " ", len);
+
+			(void) strlcat(p_name, prov->dtpv_name, len);
+
+			prov = prov->dtpv_next;
+		}
+	}
+
+	mutex_exit(&dtrace_lock);
+	mutex_exit(&dtrace_provider_lock);
+
+	if (p_name != NULL) {
+		error = sysctl_handle_string(oidp, p_name, len, req);
+
+		kmem_free(p_name, 0);
+	}
+
+	return (error);
+}
+
+SYSCTL_NODE(_debug, OID_AUTO, dtrace, CTLFLAG_RD, 0, "DTrace debug parameters");
+
+SYSCTL_PROC(_debug_dtrace, OID_AUTO, providers, CTLTYPE_STRING | CTLFLAG_RD,
+    0, 0, sysctl_dtrace_providers, "A", "available DTrace providers");
+
+SYSCTL_NODE(_kern, OID_AUTO, dtrace, CTLFLAG_RD, 0, "DTrace parameters");
+
+SYSCTL_INT(_kern_dtrace, OID_AUTO, err_verbose, CTLFLAG_RW,
+    &dtrace_err_verbose, 0,
+    "print DIF and DOF validation errors to the message buffer");
+
+SYSCTL_INT(_kern_dtrace, OID_AUTO, memstr_max, CTLFLAG_RW, &dtrace_memstr_max,
+    0, "largest allowed argument to memstr(), 0 indicates no limit");
+
+SYSCTL_QUAD(_kern_dtrace, OID_AUTO, dof_maxsize, CTLFLAG_RW,
+    &dtrace_dof_maxsize, 0, "largest allowed DOF table");
+
+SYSCTL_QUAD(_kern_dtrace, OID_AUTO, helper_actions_max, CTLFLAG_RW,
+    &dtrace_helper_actions_max, 0, "maximum number of allowed helper actions");
+
+SYSCTL_INT(_security_bsd, OID_AUTO, allow_destructive_dtrace, CTLFLAG_RDTUN,
+    &dtrace_allow_destructive, 1, "Allow destructive mode DTrace scripts");