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/* -*- 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
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