From 547e7dc094030c2f7e2ac4e3f0292ff9d3488e93 Mon Sep 17 00:00:00 2001
From: Vincent Bernat <bernat@luffy.cx>
Date: Thu, 10 Jan 2013 23:11:23 +0100
Subject: [PATCH] dmi: implementation for Mac OS X.

We use the IOKit framework.
---
 src/daemon/Makefile.am |   5 +-
 src/daemon/dmi-osx.c   | 106 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 110 insertions(+), 1 deletion(-)
 create mode 100644 src/daemon/dmi-osx.c

diff --git a/src/daemon/Makefile.am b/src/daemon/Makefile.am
index 2f27b3b9..a0dc7bf5 100644
--- a/src/daemon/Makefile.am
+++ b/src/daemon/Makefile.am
@@ -45,7 +45,10 @@ endif
 if HOST_OS_OSX
 liblldpd_la_SOURCES += \
 	interfaces-bsd.c \
-	dmi-dummy.c
+	dmi-osx.c
+liblldpd_la_LDFLAGS  = -framework Foundation
+liblldpd_la_LDFLAGS += -framework CoreFoundation -framework IOKit
+liblldpd_la_LDFLAGS += -framework IOKit
 endif
 
 # Add SNMP support if needed
diff --git a/src/daemon/dmi-osx.c b/src/daemon/dmi-osx.c
new file mode 100644
index 00000000..65d476d0
--- /dev/null
+++ b/src/daemon/dmi-osx.c
@@ -0,0 +1,106 @@
+/* -*- mode: c; c-file-style: "openbsd" -*- */
+/*
+ * Copyright (c) 2012 Vincent Bernat <bernat@luffy.cx>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "lldpd.h"
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <IOKit/IOKitLib.h>
+
+#ifdef ENABLE_LLDPMED
+static char*
+dmi_get(const char *classname, CFStringRef property)
+{
+	char *result = NULL;
+	CFMutableDictionaryRef matching = NULL;
+	CFTypeRef cfres = NULL;
+	io_service_t service = 0;
+	matching = IOServiceMatching(classname);
+	if (!matching) {
+		log_debug("localchassis", "cannot get %s class from registry",
+		    classname);
+		goto end;
+	}
+	service = IOServiceGetMatchingService(kIOMasterPortDefault, matching);
+	if (!service) {
+		log_warnx("localchassis", "cannot get matching %s class from registry",
+			classname);
+		goto end;
+	}
+	cfres = IORegistryEntryCreateCFProperty(service, property,
+	    kCFAllocatorDefault, kNilOptions);
+	if (!cfres) {
+		log_debug("localchassis", "cannot find property %s in class %s in registry",
+		    CFStringGetCStringPtr(property, kCFStringEncodingMacRoman),
+		    classname);
+		goto end;
+	}
+
+	if (CFGetTypeID(cfres) == CFStringGetTypeID())
+		result = strdup(CFStringGetCStringPtr((CFStringRef)cfres, kCFStringEncodingMacRoman));
+	else if (CFGetTypeID(cfres) == CFDataGetTypeID()) {
+		/* OK, we know this is a string. */
+		result = calloc(1, CFDataGetLength((CFDataRef)cfres) + 1);
+		if (!result) goto end;
+		memcpy(result, CFDataGetBytePtr((CFDataRef)cfres),
+		    CFDataGetLength((CFDataRef)cfres));
+	} else log_debug("localchassis", "unknown type for property %s in class %s",
+	    CFStringGetCStringPtr(property, kCFStringEncodingMacRoman),
+	    classname);
+
+end:
+	if (cfres) CFRelease(cfres);
+	if (service) IOObjectRelease(service);
+	return result;
+}
+
+char*
+dmi_hw()
+{
+	return dmi_get("IOPlatformExpertDevice", CFSTR("version"));
+}
+
+char*
+dmi_fw()
+{
+	/* Dunno where it is. Maybe in SMC? */
+	return NULL;
+}
+
+char*
+dmi_sn()
+{
+	return dmi_get("IOPlatformExpertDevice", CFSTR("IOPlatformSerialNumber"));
+}
+
+char*
+dmi_manuf()
+{
+	return dmi_get("IOPlatformExpertDevice", CFSTR("manufacturer"));
+}
+
+char*
+dmi_model()
+{
+	return dmi_get("IOPlatformExpertDevice", CFSTR("model"));
+}
+
+char*
+dmi_asset()
+{
+	return dmi_get("IOPlatformExpertDevice", CFSTR("board-id"));
+}
+#endif
-- 
2.39.5