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authorpgoyette <pgoyette@NetBSD.org>2019-03-24 11:20:26 +0000
committerpgoyette <pgoyette@NetBSD.org>2019-03-24 11:20:26 +0000
commit001157dc3d038467d552b2046a11249459e6077e (patch)
tree1ec5ef7a19f148ad6371231c5f05c893ad911a03 /sys/modules/tap
parent0a06d652adbcc91dc541e60a26f84fde8571b6fb (diff)
Add a loadable module for tap(4).
The code was already modularized, we simply didn't build the loadable module. Note also that since the tap(4) device can be reasonably accessed by either creating a device instance (using ifconfig(8)) or by opening /dev/tap, we need to create both if_tap.kmod and tap.kmod (similar to what is done with tun(4)).
Diffstat (limited to 'sys/modules/tap')
-rw-r--r--sys/modules/tap/Makefile8
-rw-r--r--sys/modules/tap/tap.c51
2 files changed, 59 insertions, 0 deletions
diff --git a/sys/modules/tap/Makefile b/sys/modules/tap/Makefile
new file mode 100644
index 00000000000..b25f2e8f217
--- /dev/null
+++ b/sys/modules/tap/Makefile
@@ -0,0 +1,8 @@
+# $NetBSD: Makefile,v 1.1 2019/03/24 11:20:26 pgoyette Exp $
+
+.include "../Makefile.inc"
+
+KMOD= tap
+SRCS= tap.c
+
+.include <bsd.kmodule.mk>
diff --git a/sys/modules/tap/tap.c b/sys/modules/tap/tap.c
new file mode 100644
index 00000000000..26bdcb5f269
--- /dev/null
+++ b/sys/modules/tap/tap.c
@@ -0,0 +1,51 @@
+/* $NetBSD: tap.c,v 1.1 2019/03/24 11:20:26 pgoyette Exp $ */
+
+/*-
+ * Copyright (c) 2016 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Paul Goyette
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: tap.c,v 1.1 2019/03/24 11:20:26 pgoyette Exp $");
+
+#include <sys/errno.h>
+#include <sys/module.h>
+
+MODULE(MODULE_CLASS_DRIVER, tap, "if_tap");
+
+static int
+tap_modcmd(modcmd_t cmd, void *arg)
+{
+
+ switch (cmd) {
+ case MODULE_CMD_INIT:
+ case MODULE_CMD_FINI:
+ return 0;
+ default:
+ return ENOTTY;
+ }
+}