STATIC void
save_DUID_info(void)
{
CFMutableDictionaryRef duid_ia;
CFDataRef host_UUID;
if (S_DUID == NULL) {
return;
}
duid_ia = CFDictionaryCreateMutable(NULL, 0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(duid_ia, kDUIDKey, S_DUID);
if (S_IAIDList != NULL) {
CFDictionarySetValue(duid_ia, kIAIDListKey, S_IAIDList);
}
host_UUID = HostUUIDGet();
if (host_UUID != NULL) {
CFDictionarySetValue(duid_ia, kHostUUIDKey, host_UUID);
}
if (my_CFPropertyListWriteFile(duid_ia, DUID_IA_FILE, 0644) < 0) {
/*
* An ENOENT error is expected on a read-only filesystem. All
* other errors should be reported.
*/
if (errno != ENOENT) {
my_log(LOG_ERR,
"DHCPDUID: failed to write %s, %s", DUID_IA_FILE,
strerror(errno));
}
}
CFRelease(duid_ia);
return;
}
PRIVATE_EXTERN void
CGAPrepareSetForInterface(const char * ifname,
struct in6_cga_prepare * cga_prep)
{
CFDictionaryRef dict;
CFStringRef ifname_cf;
CFDataRef modifier = NULL;
uint8_t security_level;
if (S_LinkLocalModifiers == NULL) {
my_log_fl(LOG_NOTICE, "S_LinkLocalModifiers is NULL");
return;
}
ifname_cf = CFStringCreateWithCString(NULL, ifname, kCFStringEncodingASCII);
dict = CFDictionaryGetValue(S_LinkLocalModifiers, ifname_cf);
if (isA_CFDictionary(dict) != NULL) {
modifier = CGAModifierDictGetModifier(dict, &security_level);
}
if (modifier == NULL) {
security_level = kCGASecurityLevelZero;
modifier = my_CFDataCreateWithRandomBytes(IN6_CGA_MODIFIER_LENGTH);
dict = CGAModifierDictCreate(modifier, security_level);
CFDictionarySetValue(S_LinkLocalModifiers, ifname_cf, dict);
CFRelease(modifier);
CGAWrite(HostUUIDGet(), S_GlobalModifier, S_LinkLocalModifiers);
}
CFRelease(ifname_cf);
cga_prepare_set(cga_prep, modifier, security_level);
return;
}
STATIC bool
load_DUID_info(void)
{
CFDataRef duid;
CFDictionaryRef duid_ia;
CFDataRef host_uuid;
CFArrayRef ia_list;
duid_ia = my_CFPropertyListCreateFromFile(DUID_IA_FILE);
if (isA_CFDictionary(duid_ia) == NULL) {
goto done;
}
duid = CFDictionaryGetValue(duid_ia, kDUIDKey);
if (isA_CFData(duid) == NULL) {
goto done;
}
ia_list = CFDictionaryGetValue(duid_ia, kIAIDListKey);
ia_list = isA_CFArray(ia_list);
if (ia_list != NULL) {
int count;
int i;
count = CFArrayGetCount(ia_list);
for (i = 0; i < count; i++) {
CFStringRef name = CFArrayGetValueAtIndex(ia_list, i);
if (isA_CFString(name) == NULL) {
/* invalid property */
ia_list = NULL;
break;
}
}
}
host_uuid = CFDictionaryGetValue(duid_ia, kHostUUIDKey);
if (isA_CFData(host_uuid) != NULL
&& CFDataGetLength(host_uuid) == sizeof(uuid_t)) {
CFDataRef our_UUID;
our_UUID = HostUUIDGet();
if (our_UUID != NULL && CFEqual(host_uuid, our_UUID) == FALSE) {
syslog(LOG_NOTICE,
"DHCPDUID: ignoring DUID - host UUID doesn't match");
goto done;
}
}
S_DUID = CFRetain(duid);
if (ia_list != NULL) {
S_IAIDList = CFArrayCreateMutableCopy(NULL, 0, ia_list);
}
done:
my_CFRelease(&duid_ia);
return (S_DUID != NULL);
}
PRIVATE_EXTERN void
CGAInit(void)
{
CFDataRef host_uuid;
if (G_is_netboot || cga_is_enabled() == FALSE) {
return;
}
host_uuid = HostUUIDGet();
if (host_uuid == NULL) {
my_log_fl(LOG_NOTICE, "Failed to get HostUUID");
return;
}
if (CGAParametersLoad(host_uuid) == FALSE) {
return;
}
return;
}