src/daemon/dmi-osx.c

   1 /* -*- mode: c; c-file-style: "openbsd" -*- */
   2 /*
   3  * Copyright (c) 2012 Vincent Bernat <bernat@luffy.cx>
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include "lldpd.h"
  19
  20 #include <CoreFoundation/CoreFoundation.h>
  21 #include <IOKit/IOKitLib.h>
  22
  23 #ifdef ENABLE_LLDPMED
  24 static char *
  25 dmi_get(const char *classname, CFStringRef property)
  26 {
  27         char *result = NULL;
  28         CFMutableDictionaryRef matching = NULL;
  29         CFTypeRef cfres = NULL;
  30         io_service_t service = 0;
  31         matching = IOServiceMatching(classname);
  32         if (!matching) {
  33                 log_debug("localchassis", "cannot get %s class from registry",
  34                     classname);
  35                 goto end;
  36         }
  37         service = IOServiceGetMatchingService(kIOMasterPortDefault, matching);
  38         if (!service) {
  39                 log_warnx("localchassis", "cannot get matching %s class from registry",
  40                     classname);
  41                 goto end;
  42         }
  43         cfres = IORegistryEntryCreateCFProperty(service, property, kCFAllocatorDefault,
  44             kNilOptions);
  45         if (!cfres) {
  46                 log_debug("localchassis",
  47                     "cannot find property %s in class %s in registry",
  48                     CFStringGetCStringPtr(property, kCFStringEncodingMacRoman),
  49                     classname);
  50                 goto end;
  51         }
  52
  53         if (CFGetTypeID(cfres) == CFStringGetTypeID())
  54                 result = strdup(CFStringGetCStringPtr((CFStringRef)cfres,
  55                     kCFStringEncodingMacRoman));
  56         else if (CFGetTypeID(cfres) == CFDataGetTypeID()) {
  57                 /* OK, we know this is a string. */
  58                 result = calloc(1, CFDataGetLength((CFDataRef)cfres) + 1);
  59                 if (!result) goto end;
  60                 memcpy(result, CFDataGetBytePtr((CFDataRef)cfres),
  61                     CFDataGetLength((CFDataRef)cfres));
  62         } else
  63                 log_debug("localchassis", "unknown type for property %s in class %s",
  64                     CFStringGetCStringPtr(property, kCFStringEncodingMacRoman),
  65                     classname);
  66
  67 end:
  68         if (cfres) CFRelease(cfres);
  69         if (service) IOObjectRelease(service);
  70         return result;
  71 }
  72
  73 char *
  74 dmi_hw()
  75 {
  76         return dmi_get("IOPlatformExpertDevice", CFSTR("version"));
  77 }
  78
  79 char *
  80 dmi_fw()
  81 {
  82         /* Dunno where it is. Maybe in SMC? */
  83         return NULL;
  84 }
  85
  86 char *
  87 dmi_sn()
  88 {
  89         return dmi_get("IOPlatformExpertDevice", CFSTR("IOPlatformSerialNumber"));
  90 }
  91
  92 char *
  93 dmi_manuf()
  94 {
  95         return dmi_get("IOPlatformExpertDevice", CFSTR("manufacturer"));
  96 }
  97
  98 char *
  99 dmi_model()
 100 {
 101         return dmi_get("IOPlatformExpertDevice", CFSTR("model"));
 102 }
 103
 104 char *
 105 dmi_asset()
 106 {
 107         return dmi_get("IOPlatformExpertDevice", CFSTR("board-id"));
 108 }
 109 #endif