From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001
From: Cameron Katri <me@cameronkatri.com>
Date: Sun, 9 May 2021 14:20:58 -0400
Subject: Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
---
 network_cmds/ifconfig.tproj/nexus.c | 98 +++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 network_cmds/ifconfig.tproj/nexus.c

(limited to 'network_cmds/ifconfig.tproj/nexus.c')

diff --git a/network_cmds/ifconfig.tproj/nexus.c b/network_cmds/ifconfig.tproj/nexus.c
new file mode 100644
index 0000000..3df9842
--- /dev/null
+++ b/network_cmds/ifconfig.tproj/nexus.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2017 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * nexus.c
+ * - report information about attached nexus
+ */
+
+/*
+ * Modification History:
+ *
+ * April 10, 2017	Dieter Siegmund (dieter@apple.com)
+ * - created
+ */
+
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <net/if_var.h>
+#include <net/if_fake_var.h>
+
+#include <net/route.h>
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <err.h>
+#include <errno.h>
+
+#include "ifconfig.h"
+
+static void
+nexus_status(int s)
+{
+	struct if_nexusreq	ifnr;
+	uuid_string_t		flowswitch;
+	uuid_string_t		netif;
+
+	if (!verbose) {
+		return;
+	}
+	bzero((char *)&ifnr, sizeof(ifnr));
+	strlcpy(ifnr.ifnr_name, ifr.ifr_name, sizeof(ifnr.ifnr_name));
+	if (ioctl(s, SIOCGIFNEXUS, &ifnr) < 0) {
+		return;
+	}
+	if (uuid_is_null(ifnr.ifnr_netif)) {
+		/* technically, this shouldn't happen */
+		return;
+	}
+	uuid_unparse_upper(ifnr.ifnr_netif, netif);
+	printf("\tnetif: %s\n", netif);
+	if (uuid_is_null(ifnr.ifnr_flowswitch) == 0) {
+		uuid_unparse_upper(ifnr.ifnr_flowswitch, flowswitch);
+		printf("\tflowswitch: %s\n", flowswitch);
+	}
+	return;
+}
+
+static struct afswtch af_fake = {
+	.af_name	= "af_fake",
+	.af_af		= AF_UNSPEC,
+	.af_other_status = nexus_status,
+};
+
+static __constructor void
+fake_ctor(void)
+{
+	af_register(&af_fake);
+}
+
-- 
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