+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ * Modification History
+ *
+ * November 14, 2003 Allan Nathanson <ajn@apple.com>
+ * - initial revision
+ */
+
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <CoreFoundation/CFRuntime.h>
+
+#include <SystemConfiguration/SystemConfiguration.h>
+#include <SystemConfiguration/SCValidation.h>
+#include <SystemConfiguration/SCPrivate.h>
+
+#include <ifaddrs.h>
+#include <pthread.h>
+#include <sys/types.h>
+#define KERNEL_PRIVATE
+#include <sys/ioctl.h>
+#undef KERNEL_PRIVATE
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+#include <net/ethernet.h>
+#define KERNEL_PRIVATE 1
+#include <net/if.h>
+#include <net/if_var.h>
+#undef KERNEL_PRIVATE
+#include <net/if_vlan_var.h>
+#include <net/if_types.h>
+#include <net/route.h>
+
+#include <SystemConfiguration/VLANConfiguration.h>
+#include <SystemConfiguration/VLANConfigurationPrivate.h>
+
+/* ---------- VLAN support ---------- */
+
+static int
+inet_dgram_socket()
+{
+ int s;
+
+ s = socket(AF_INET, SOCK_DGRAM, 0);
+ if (s == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("socket() failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ }
+
+ return s;
+}
+
+
+static Boolean
+_VLAN_create(int s, CFStringRef interface)
+{
+#ifdef SIOCIFCREATE
+ struct ifreq ifr;
+
+ bzero(&ifr, sizeof(ifr));
+ (void) _SC_cfstring_to_cstring(interface,
+ ifr.ifr_name,
+ sizeof(ifr.ifr_name),
+ kCFStringEncodingASCII);
+
+ if (ioctl(s, SIOCIFCREATE, &ifr) == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("ioctl(SIOCIFCREATE) failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ return FALSE;
+ }
+
+ return TRUE;
+#else /* SIOCIFCREATE */
+ return FALSE;
+#endif /* SIOCIFCREATE */
+}
+
+
+static Boolean
+_VLAN_destroy(int s, CFStringRef interface)
+{
+#ifdef SIOCIFDESTROY
+ struct ifreq ifr;
+
+ bzero(&ifr, sizeof(ifr));
+ (void) _SC_cfstring_to_cstring(interface,
+ ifr.ifr_name,
+ sizeof(ifr.ifr_name),
+ kCFStringEncodingASCII);
+
+ if (ioctl(s, SIOCIFDESTROY, &ifr) == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("ioctl(SIOCIFDESTROY) failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ return FALSE;
+ }
+
+ return TRUE;
+#else /* SIOCIFDESTROY */
+ return FALSE;
+#endif /* SIOCIFDESTROY */
+}
+
+
+static Boolean
+_VLANDevice_set(int s, CFStringRef interface, CFStringRef device, CFNumberRef tag)
+{
+#ifdef SIOCSETVLAN
+ struct ifreq ifr;
+ int tag_val;
+ struct vlanreq vreq;
+
+ bzero(&ifr, sizeof(ifr));
+ bzero(&vreq, sizeof(vreq));
+
+ // interface
+ (void) _SC_cfstring_to_cstring(interface,
+ ifr.ifr_name,
+ sizeof(ifr.ifr_name),
+ kCFStringEncodingASCII);
+ ifr.ifr_data = (caddr_t)&vreq;
+
+ // parent device
+ (void) _SC_cfstring_to_cstring(device,
+ vreq.vlr_parent,
+ sizeof(vreq.vlr_parent),
+ kCFStringEncodingASCII);
+
+ // tag
+ CFNumberGetValue(tag, kCFNumberIntType, &tag_val);
+ vreq.vlr_tag = tag_val;
+
+ // update parent device and tag
+ if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("ioctl(SIOCSETVLAN) failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ return FALSE;
+ }
+
+ return TRUE;
+#else /* SIOCSETVLAN */
+ return FALSE;
+#endif /* SIOCSETVLAN */
+}
+
+
+static Boolean
+_VLANDevice_unset(int s, CFStringRef interface)
+{
+#ifdef SIOCSETVLAN
+ struct ifreq ifr;
+ struct vlanreq vreq;
+
+ bzero(&ifr, sizeof(ifr));
+ bzero(&vreq, sizeof(vreq));
+
+ // interface
+ (void) _SC_cfstring_to_cstring(interface,
+ ifr.ifr_name,
+ sizeof(ifr.ifr_name),
+ kCFStringEncodingASCII);
+ ifr.ifr_data = (caddr_t)&vreq;
+
+ // clear parent device
+ bzero(&vreq.vlr_parent, sizeof(vreq.vlr_parent));
+
+ // clear tag
+ vreq.vlr_tag = 0;
+
+ // update parent device and tag
+ if (ioctl(s, SIOCSETVLAN, (caddr_t)&ifr) == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("ioctl(SIOCSETVLAN) failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ return FALSE;
+ }
+
+ return TRUE;
+#else /* SIOCSETVLAN */
+ return FALSE;
+#endif /* SIOCSETVLAN */
+}
+
+
+/* ---------- VLAN "device" ---------- */
+
+Boolean
+IsVLANSupported(CFStringRef device)
+{
+ char * buf = NULL;
+ size_t buf_len = 0;
+ struct if_msghdr * ifm;
+ char * if_name = NULL;
+ unsigned int if_index;
+ Boolean isVlan = FALSE;
+ int mib[6];
+
+ /* get the interface index */
+
+ if_name = _SC_cfstring_to_cstring(device, NULL, NULL, kCFStringEncodingASCII);
+ if (if_name == NULL) {
+ return FALSE; // if conversion error
+ }
+ if_index = if_nametoindex(if_name);
+ if (if_index == 0) {
+ goto done; // if unknown interface
+ }
+
+ /* get information for the specified device */
+
+ mib[0] = CTL_NET;
+ mib[1] = PF_ROUTE;
+ mib[2] = 0;
+ mib[3] = AF_LINK;
+ mib[4] = NET_RT_IFLIST;
+ mib[5] = if_index; /* ask for exactly one interface */
+
+ if (sysctl(mib, 6, NULL, &buf_len, NULL, 0) < 0) {
+ SCLog(TRUE, LOG_ERR, CFSTR("sysctl() size failed: %s"), strerror(errno));
+ goto done;
+ }
+ buf = CFAllocatorAllocate(NULL, buf_len, 0);
+ if (sysctl(mib, 6, buf, &buf_len, NULL, 0) < 0) {
+ SCLog(TRUE, LOG_ERR, CFSTR("sysctl() failed: %s"), strerror(errno));
+ goto done;
+ }
+
+ /* check the link type and hwassist flags */
+
+ ifm = (struct if_msghdr *)buf;
+ switch (ifm->ifm_type) {
+ case RTM_IFINFO : {
+#if defined(IF_HWASSIST_VLAN_TAGGING) && defined(IF_HWASSIST_VLAN_MTU)
+ struct if_data *if_data = &ifm->ifm_data;
+
+ if (if_data->ifi_hwassist & (IF_HWASSIST_VLAN_TAGGING | IF_HWASSIST_VLAN_MTU)) {
+ isVlan = TRUE;
+ }
+#endif
+ break;
+ }
+ }
+
+ done :
+
+ if (if_name != NULL) CFAllocatorDeallocate(NULL, if_name);
+ if (buf != NULL) CFAllocatorDeallocate(NULL, buf);
+
+ return isVlan;
+}
+
+/* ---------- VLANInterface ---------- */
+
+typedef struct {
+
+ /* base CFType information */
+ CFRuntimeBase cfBase;
+
+ /* vlan interface configuration */
+ CFStringRef ifname; // e.g. vlan0, vlan1, ...
+ CFStringRef device; // e.g. en0, en1, ...
+ CFNumberRef tag; // e.g. 1 <= tag <= 4094
+ CFDictionaryRef options; // e.g. UserDefinedName
+
+} VLANInterfacePrivate, * VLANInterfacePrivateRef;
+
+
+static CFStringRef __VLANInterfaceCopyDescription (CFTypeRef cf);
+static void __VLANInterfaceDeallocate (CFTypeRef cf);
+static Boolean __VLANInterfaceEqual (CFTypeRef cf1, CFTypeRef cf2);
+
+
+static const CFRuntimeClass __VLANInterfaceClass = {
+ 0, // version
+ "VLANInterface", // className
+ NULL, // init
+ NULL, // copy
+ __VLANInterfaceDeallocate, // dealloc
+ __VLANInterfaceEqual, // equal
+ NULL, // hash
+ NULL, // copyFormattingDesc
+ __VLANInterfaceCopyDescription // copyDebugDesc
+};
+
+
+static CFTypeID __kVLANInterfaceTypeID = _kCFRuntimeNotATypeID;
+
+
+static pthread_once_t vlanInterface_init = PTHREAD_ONCE_INIT;
+
+
+static CFStringRef
+__VLANInterfaceCopyDescription(CFTypeRef cf)
+{
+ CFAllocatorRef allocator = CFGetAllocator(cf);
+ CFMutableStringRef result;
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)cf;
+
+ result = CFStringCreateMutable(allocator, 0);
+ CFStringAppendFormat(result, NULL, CFSTR("<VLANInterface %p [%p]> {"), cf, allocator);
+ CFStringAppendFormat(result, NULL, CFSTR(" if = %@"), vlanPrivate->ifname);
+ CFStringAppendFormat(result, NULL, CFSTR(", device = %@"), vlanPrivate->device);
+ CFStringAppendFormat(result, NULL, CFSTR(", tag = %@"), vlanPrivate->tag);
+ if (vlanPrivate->options != NULL) {
+ CFStringAppendFormat(result, NULL, CFSTR(", options = %@"), vlanPrivate->options);
+ }
+ CFStringAppendFormat(result, NULL, CFSTR(" }"));
+
+ return result;
+}
+
+
+static void
+__VLANInterfaceDeallocate(CFTypeRef cf)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)cf;
+
+ SCLog(_sc_verbose, LOG_DEBUG, CFSTR("__VLANInterfaceDeallocate:"));
+
+ /* release resources */
+
+ CFRelease(vlanPrivate->ifname);
+ CFRelease(vlanPrivate->device);
+ CFRelease(vlanPrivate->tag);
+ if (vlanPrivate->options) CFRelease(vlanPrivate->options);
+
+ return;
+}
+
+
+static Boolean
+__VLANInterfaceEquiv(CFTypeRef cf1, CFTypeRef cf2)
+{
+ VLANInterfacePrivateRef vlan1 = (VLANInterfacePrivateRef)cf1;
+ VLANInterfacePrivateRef vlan2 = (VLANInterfacePrivateRef)cf2;
+
+ if (vlan1 == vlan2)
+ return TRUE;
+
+ if (!CFEqual(vlan1->ifname, vlan2->ifname))
+ return FALSE; // if not the same interface
+
+ if (!CFEqual(vlan1->device, vlan2->device))
+ return FALSE; // if not the same device
+
+ if (!CFEqual(vlan1->tag, vlan2->tag))
+ return FALSE; // if not the same tag
+
+ return TRUE;
+}
+
+
+static Boolean
+__VLANInterfaceEqual(CFTypeRef cf1, CFTypeRef cf2)
+{
+ VLANInterfacePrivateRef vlan1 = (VLANInterfacePrivateRef)cf1;
+ VLANInterfacePrivateRef vlan2 = (VLANInterfacePrivateRef)cf2;
+
+ if (!__VLANInterfaceEquiv(vlan1, vlan2))
+ return FALSE; // if not the same VLAN interface/device/tag
+
+ if (vlan1->options != vlan2->options) {
+ // if the options may differ
+ if ((vlan1->options != NULL) && (vlan2->options != NULL)) {
+ // if both VLANs have options
+ if (!CFEqual(vlan1->options, vlan2->options)) {
+ // if the options are not equal
+ return FALSE;
+ }
+ } else {
+ // if only one VLAN has options
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+
+static void
+__VLANInterfaceInitialize(void)
+{
+ __kVLANInterfaceTypeID = _CFRuntimeRegisterClass(&__VLANInterfaceClass);
+ return;
+}
+
+
+static __inline__ CFTypeRef
+isA_VLANInterface(CFTypeRef obj)
+{
+ return (isA_CFType(obj, VLANInterfaceGetTypeID()));
+}
+
+
+CFTypeID
+VLANInterfaceGetTypeID(void)
+{
+ pthread_once(&vlanInterface_init, __VLANInterfaceInitialize); /* initialize runtime */
+ return __kVLANInterfaceTypeID;
+}
+
+
+static VLANInterfaceRef
+__VLANInterfaceCreatePrivate(CFAllocatorRef allocator,
+ CFStringRef ifname,
+ CFStringRef device,
+ CFNumberRef tag,
+ CFDictionaryRef options)
+{
+ VLANInterfacePrivateRef vlanPrivate;
+ uint32_t size;
+
+ SCLog(_sc_verbose, LOG_DEBUG, CFSTR("__VLANInterfaceCreatePrivate:"));
+
+ /* initialize runtime */
+ pthread_once(&vlanInterface_init, __VLANInterfaceInitialize);
+
+ /* allocate vlan */
+ size = sizeof(VLANInterfacePrivate) - sizeof(CFRuntimeBase);
+ vlanPrivate = (VLANInterfacePrivateRef)_CFRuntimeCreateInstance(allocator,
+ __kVLANInterfaceTypeID,
+ size,
+ NULL);
+ if (!vlanPrivate) {
+ return NULL;
+ }
+
+ /* establish the vlan */
+
+ vlanPrivate->ifname = CFStringCreateCopy(allocator, ifname);
+ vlanPrivate->device = CFStringCreateCopy(allocator, device);
+ vlanPrivate->tag = CFRetain(tag);
+ if (options != NULL) {
+ vlanPrivate->options = CFDictionaryCreateCopy(allocator, options);
+ } else {
+ vlanPrivate->options = NULL;
+ }
+
+ return (VLANInterfaceRef)vlanPrivate;
+}
+
+
+CFStringRef
+VLANInterfaceGetInterface(VLANInterfaceRef vlan)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)vlan;
+ CFStringRef vlan_if = NULL;
+
+ if (isA_VLANInterface(vlan)) {
+ vlan_if = vlanPrivate->ifname;
+ }
+
+ return vlan_if;
+}
+
+
+CFStringRef
+VLANInterfaceGetDevice(VLANInterfaceRef vlan)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)vlan;
+ CFStringRef vlan_device = NULL;
+
+ if (isA_VLANInterface(vlan)) {
+ vlan_device = vlanPrivate->device;
+ }
+
+ return vlan_device;
+}
+
+
+static void
+VLANInterfaceSetDevice(VLANInterfaceRef vlan, CFStringRef newDevice)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)vlan;
+
+ if (isA_VLANInterface(vlan)) {
+ CFAllocatorRef allocator = CFGetAllocator(vlan);
+
+ CFRelease(vlanPrivate->device);
+ vlanPrivate->device = CFStringCreateCopy(allocator, newDevice);
+ }
+
+ return;
+}
+
+
+CFNumberRef
+VLANInterfaceGetTag(VLANInterfaceRef vlan)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)vlan;
+ CFNumberRef vlan_tag = NULL;
+
+ if (isA_VLANInterface(vlan)) {
+ vlan_tag = vlanPrivate->tag;
+ }
+
+ return vlan_tag;
+}
+
+
+static void
+VLANInterfaceSetTag(VLANInterfaceRef vlan, CFNumberRef newTag)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)vlan;
+
+ if (isA_VLANInterface(vlan)) {
+ CFRelease(vlanPrivate->tag);
+ vlanPrivate->tag = CFRetain(newTag);
+ }
+
+ return;
+}
+
+
+CFDictionaryRef
+VLANInterfaceGetOptions(VLANInterfaceRef vlan)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)vlan;
+ CFDictionaryRef vlan_options = NULL;
+
+ if (isA_VLANInterface(vlan)) {
+ vlan_options = vlanPrivate->options;
+ }
+
+ return vlan_options;
+}
+
+
+static void
+VLANInterfaceSetOptions(VLANInterfaceRef vlan, CFDictionaryRef newOptions)
+{
+ VLANInterfacePrivateRef vlanPrivate = (VLANInterfacePrivateRef)vlan;
+
+ if (isA_VLANInterface(vlan)) {
+ CFAllocatorRef allocator = CFGetAllocator(vlan);
+
+ if (vlanPrivate->options) CFRelease(vlanPrivate->options);
+ if (newOptions != NULL) {
+ vlanPrivate->options = CFDictionaryCreateCopy(allocator, newOptions);
+ } else {
+ vlanPrivate->options = NULL;
+ }
+ }
+
+ return;
+}
+
+
+/* ---------- VLANPreferences ---------- */
+
+#define VLAN_PREFERENCES_VLANS CFSTR("VLANs")
+
+#define __kVLANInterface_interface CFSTR("interface") // e.g. vlan0, vlan1, ...
+#define __kVLANInterface_device CFSTR("device") // e.g. en0, en1, ...
+#define __kVLANInterface_tag CFSTR("tag") // e.g. 1 <= tag <= 4094
+#define __kVLANInterface_options CFSTR("options") // e.g. UserDefinedName
+
+typedef struct {
+
+ /* base CFType information */
+ CFRuntimeBase cfBase;
+
+ /* lock */
+ pthread_mutex_t lock;
+
+ /* underlying preferences */
+ SCPreferencesRef prefs;
+
+ /* base VLANs (before any commits) */
+ CFArrayRef vlBase;
+
+} VLANPreferencesPrivate, * VLANPreferencesPrivateRef;
+
+
+static CFStringRef __VLANPreferencesCopyDescription (CFTypeRef cf);
+static void __VLANPreferencesDeallocate (CFTypeRef cf);
+
+
+static const CFRuntimeClass __VLANPreferencesClass = {
+ 0, // version
+ "VLANPreferences", // className
+ NULL, // init
+ NULL, // copy
+ __VLANPreferencesDeallocate, // dealloc
+ NULL, // equal
+ NULL, // hash
+ NULL, // copyFormattingDesc
+ __VLANPreferencesCopyDescription // copyDebugDesc
+};
+
+
+static CFTypeID __kVLANPreferencesTypeID = _kCFRuntimeNotATypeID;
+
+
+static pthread_once_t vlanPreferences_init = PTHREAD_ONCE_INIT;
+
+
+static CFStringRef
+__VLANPreferencesCopyDescription(CFTypeRef cf)
+{
+ CFAllocatorRef allocator = CFGetAllocator(cf);
+ CFIndex i;
+ CFArrayRef keys;
+ CFIndex n;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)cf;
+ CFMutableStringRef result;
+
+ result = CFStringCreateMutable(allocator, 0);
+ CFStringAppendFormat(result, NULL, CFSTR("<VLANPreferences %p [%p]> {"), cf, allocator);
+
+ keys = SCPreferencesCopyKeyList(prefsPrivate->prefs);
+ n = CFArrayGetCount(keys);
+ for (i = 0; i < n; i++) {
+ CFStringRef key;
+ CFPropertyListRef val;
+
+ key = CFArrayGetValueAtIndex(keys, i);
+ val = SCPreferencesGetValue(prefsPrivate->prefs, key);
+
+ CFStringAppendFormat(result, NULL, CFSTR("%@ : %@"), key, val);
+ }
+ CFRelease(keys);
+
+ CFStringAppendFormat(result, NULL, CFSTR(" }"));
+
+ return result;
+}
+
+
+#define N_QUICK 8
+
+
+static void
+__VLANPreferencesDeallocate(CFTypeRef cf)
+{
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)cf;
+
+ SCLog(_sc_verbose, LOG_DEBUG, CFSTR("__VLANPreferencesDeallocate:"));
+
+ /* release resources */
+
+ pthread_mutex_destroy(&prefsPrivate->lock);
+
+ if (prefsPrivate->prefs) CFRelease(prefsPrivate->prefs);
+ if (prefsPrivate->vlBase) CFRelease(prefsPrivate->vlBase);
+
+ return;
+}
+
+
+static void
+__VLANPreferencesInitialize(void)
+{
+ __kVLANPreferencesTypeID = _CFRuntimeRegisterClass(&__VLANPreferencesClass);
+ return;
+}
+
+
+static __inline__ CFTypeRef
+isA_VLANPreferences(CFTypeRef obj)
+{
+ return (isA_CFType(obj, VLANPreferencesGetTypeID()));
+}
+
+
+CFArrayRef
+_VLANPreferencesCopyActiveInterfaces()
+{
+ CFArrayCallBacks callbacks;
+ struct ifaddrs *ifap;
+ struct ifaddrs *ifp;
+ int s;
+ CFMutableArrayRef vlans = NULL;
+
+ if (getifaddrs(&ifap) == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("getifaddrs() failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ return NULL;
+ }
+
+ s = inet_dgram_socket();
+ if (s == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("socket() failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ goto done;
+ }
+
+ callbacks = kCFTypeArrayCallBacks;
+ callbacks.equal = __VLANInterfaceEquiv;
+ vlans = CFArrayCreateMutable(NULL, 0, &callbacks);
+
+ for (ifp = ifap; ifp != NULL; ifp = ifp->ifa_next) {
+ switch (ifp->ifa_addr->sa_family) {
+ case AF_LINK : {
+ CFStringRef device;
+ struct if_data *if_data;
+ struct ifreq ifr;
+ CFNumberRef tag;
+ VLANInterfaceRef vlan;
+ CFStringRef vlan_if;
+ char vlr_parent[IFNAMSIZ+1];
+ int vlr_tag;
+ struct vlanreq vreq;
+
+ if_data = (struct if_data *)ifp->ifa_data;
+ if (if_data == NULL) {
+ break; // if no interface data
+ }
+
+ if (if_data->ifi_type != IFT_L2VLAN) {
+ break; // if not VLAN
+ }
+
+ bzero(&ifr, sizeof(ifr));
+ bzero(&vreq, sizeof(vreq));
+ strncpy(ifr.ifr_name, ifp->ifa_name, sizeof(ifr.ifr_name));
+ ifr.ifr_data = (caddr_t)&vreq;
+
+ if (ioctl(s, SIOCGETVLAN, (caddr_t)&ifr) == -1) {
+ SCLog(TRUE, LOG_ERR, CFSTR("ioctl() failed: %s"), strerror(errno));
+ _SCErrorSet(kSCStatusFailed);
+ CFRelease(vlans);
+ goto done;
+ }
+ vlr_tag = vreq.vlr_tag;
+ strlcpy(vlr_parent, vreq.vlr_parent, sizeof(vlr_parent));
+
+ vlan_if = CFStringCreateWithCString(NULL, ifp->ifa_name, kCFStringEncodingASCII);
+ device = CFStringCreateWithCString(NULL, vlr_parent, kCFStringEncodingASCII);
+ tag = CFNumberCreate(NULL, kCFNumberIntType, &vlr_tag);
+ vlan = __VLANInterfaceCreatePrivate(NULL, vlan_if, device, tag, NULL);
+ CFArrayAppendValue(vlans, vlan);
+ CFRelease(vlan_if);
+ CFRelease(device);
+ CFRelease(tag);
+ CFRelease(vlan);
+ break;
+ }
+
+ default :
+ break;
+ }
+ }
+
+ done :
+
+ (void) close(s);
+ freeifaddrs(ifap);
+ return vlans;
+}
+
+
+static CFIndex
+findVLAN(CFArrayRef vlans, CFStringRef device, CFNumberRef tag)
+{
+ CFIndex found = kCFNotFound;
+ CFIndex i;
+ CFIndex n;
+
+ n = isA_CFArray(vlans) ? CFArrayGetCount(vlans) : 0;
+ for (i = 0; i < n; i++) {
+ CFDictionaryRef vlan_dict;
+ CFStringRef vlan_device;
+ CFStringRef vlan_if;
+ CFNumberRef vlan_tag;
+
+ vlan_dict = CFArrayGetValueAtIndex(vlans, i);
+ if (!isA_CFDictionary(vlan_dict)) {
+ continue; // if the prefs are confused
+ }
+
+ vlan_if = CFDictionaryGetValue(vlan_dict, __kVLANInterface_interface);
+ if (!isA_CFString(vlan_if)) {
+ continue; // if the prefs are confused
+ }
+
+ vlan_device = CFDictionaryGetValue(vlan_dict, __kVLANInterface_device);
+ if (isA_CFString(vlan_device)) {
+ if (!CFEqual(device, vlan_device)) {
+ continue; // if not a match
+ }
+ }
+
+ vlan_tag = CFDictionaryGetValue(vlan_dict, __kVLANInterface_tag);
+ if (isA_CFNumber(vlan_tag)) {
+ if (!CFEqual(tag, vlan_tag)) {
+ continue; // if not a match
+ }
+ }
+
+ // if we have found a match
+ found = i;
+ break;
+ }
+
+ return found;
+}
+
+
+static void
+setConfigurationChanged(VLANPreferencesRef prefs)
+{
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+
+ /*
+ * to facilitate device configuration we will take
+ * a snapshot of the VLAN preferences before any
+ * changes are made. Then, when the changes are
+ * applied we can compare what we had to what we
+ * want and configured the system accordingly.
+ */
+ if (prefsPrivate->vlBase == NULL) {
+ prefsPrivate->vlBase = VLANPreferencesCopyInterfaces(prefs);
+ }
+
+ return;
+}
+
+
+CFTypeID
+VLANPreferencesGetTypeID(void)
+{
+ pthread_once(&vlanPreferences_init, __VLANPreferencesInitialize); /* initialize runtime */
+ return __kVLANPreferencesTypeID;
+}
+
+
+VLANPreferencesRef
+VLANPreferencesCreate(CFAllocatorRef allocator)
+{
+ CFBundleRef bundle;
+ CFStringRef bundleID = NULL;
+ CFStringRef name = CFSTR("VLANConfiguration");
+ VLANPreferencesPrivateRef prefsPrivate;
+ uint32_t size;
+
+ SCLog(_sc_verbose, LOG_DEBUG, CFSTR("__VLANPreferencesCreate:"));
+
+ /* initialize runtime */
+ pthread_once(&vlanPreferences_init, __VLANPreferencesInitialize);
+
+ /* allocate preferences */
+ size = sizeof(VLANPreferencesPrivate) - sizeof(CFRuntimeBase);
+ prefsPrivate = (VLANPreferencesPrivateRef)_CFRuntimeCreateInstance(allocator,
+ __kVLANPreferencesTypeID,
+ size,
+ NULL);
+ if (!prefsPrivate) {
+ return NULL;
+ }
+
+ /* establish the prefs */
+
+ pthread_mutex_init(&prefsPrivate->lock, NULL);
+
+ bundle = CFBundleGetMainBundle();
+ if (bundle) {
+ bundleID = CFBundleGetIdentifier(bundle);
+ if (bundleID) {
+ CFRetain(bundleID);
+ } else {
+ CFURLRef url;
+
+ url = CFBundleCopyExecutableURL(bundle);
+ if (url) {
+ bundleID = CFURLCopyPath(url);
+ CFRelease(url);
+ }
+ }
+ }
+
+ if (bundleID) {
+ CFStringRef fullName;
+
+ if (CFEqual(bundleID, CFSTR("/"))) {
+ CFRelease(bundleID);
+ bundleID = CFStringCreateWithFormat(allocator, NULL, CFSTR("(%d)"), getpid());
+ }
+
+ fullName = CFStringCreateWithFormat(allocator, NULL, CFSTR("%@:%@"), bundleID, name);
+ name = fullName;
+ CFRelease(bundleID);
+ } else {
+ CFRetain(name);
+ }
+
+ prefsPrivate->prefs = SCPreferencesCreate(allocator, name, VLAN_PREFERENCES_ID);
+ CFRelease(name);
+
+ prefsPrivate->vlBase = NULL;
+
+ return (VLANPreferencesRef)prefsPrivate;
+}
+
+
+CFArrayRef
+VLANPreferencesCopyInterfaces(VLANPreferencesRef prefs)
+{
+ CFAllocatorRef allocator;
+ CFArrayCallBacks callbacks;
+ CFIndex i;
+ CFIndex n;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+ CFMutableArrayRef result;
+ CFArrayRef vlans;
+
+ if (!isA_VLANPreferences(prefs)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return NULL;
+ }
+
+ allocator = CFGetAllocator(prefs);
+ callbacks = kCFTypeArrayCallBacks;
+ callbacks.equal = __VLANInterfaceEquiv;
+ result = CFArrayCreateMutable(allocator, 0, &callbacks);
+
+ vlans = SCPreferencesGetValue(prefsPrivate->prefs, VLAN_PREFERENCES_VLANS);
+ n = isA_CFArray(vlans) ? CFArrayGetCount(vlans) : 0;
+ for (i = 0; i < n; i++) {
+ CFDictionaryRef vlan_dict;
+ CFStringRef device;
+ CFDictionaryRef options;
+ CFNumberRef tag;
+ VLANInterfaceRef vlan;
+ CFStringRef vlan_if;
+
+ vlan_dict = CFArrayGetValueAtIndex(vlans, i);
+ if (!isA_CFDictionary(vlan_dict)) {
+ continue; // if the prefs are confused
+ }
+
+ vlan_if = CFDictionaryGetValue(vlan_dict, __kVLANInterface_interface);
+ if (!isA_CFString(vlan_if)) {
+ continue; // if the prefs are confused
+ }
+
+
+ device = CFDictionaryGetValue(vlan_dict, __kVLANInterface_device);
+ if (!isA_CFString(device)) {
+ continue; // if the prefs are confused
+ }
+
+ tag = CFDictionaryGetValue(vlan_dict, __kVLANInterface_tag);
+ if (!isA_CFNumber(tag)) {
+ continue; // if the prefs are confused
+ }
+
+ options = CFDictionaryGetValue(vlan_dict, __kVLANInterface_options);
+ if ((options != NULL) && !isA_CFDictionary(options)) {
+ continue; // if the prefs are confused
+ }
+
+ vlan = __VLANInterfaceCreatePrivate(allocator, vlan_if, device, tag, options);
+ CFArrayAppendValue(result, vlan);
+ CFRelease(vlan);
+ }
+
+ return result;
+}
+
+
+VLANInterfaceRef
+VLANPreferencesAddInterface(VLANPreferencesRef prefs,
+ CFStringRef device,
+ CFNumberRef tag,
+ CFDictionaryRef options)
+{
+ CFArrayRef active_vlans;
+ CFAllocatorRef allocator;
+ CFArrayRef config_vlans;
+ CFIndex dup_if;
+ CFIndex i;
+ CFIndex nActive;
+ CFIndex nConfig;
+ VLANInterfaceRef newVlan = NULL;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+
+ if (!isA_VLANPreferences(prefs)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return NULL;
+ }
+
+ if (!isA_CFString(device)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return NULL;
+ }
+
+ if (isA_CFNumber(tag)) {
+ int tag_val;
+
+ CFNumberGetValue(tag, kCFNumberIntType, &tag_val);
+ if ((tag_val < 1) || (tag_val > 4094)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return NULL;
+ }
+ } else {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return NULL;
+ }
+
+ if ((options != NULL) && !isA_CFDictionary(options)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return NULL;
+ }
+
+ pthread_mutex_lock(&prefsPrivate->lock);
+
+ /* get "configured" VLANs (and check to ensure we are not creating a duplicate) */
+ config_vlans = SCPreferencesGetValue(prefsPrivate->prefs, VLAN_PREFERENCES_VLANS);
+ nConfig = isA_CFArray(config_vlans) ? CFArrayGetCount(config_vlans) : 0;
+
+ dup_if = findVLAN(config_vlans, device, tag);
+ if (dup_if != kCFNotFound) {
+ // sorry, you can't add a vlan using the same device/tag */
+ _SCErrorSet(kSCStatusKeyExists);
+ goto done;
+ }
+
+ /* get "active" VLANs */
+ active_vlans = _VLANPreferencesCopyActiveInterfaces();
+ nActive = isA_CFArray(active_vlans) ? CFArrayGetCount(active_vlans) : 0;
+
+ /* create a new vlan using an unused interface name */
+ allocator = CFGetAllocator(prefs);
+
+ for (i = 0; newVlan == NULL; i++) {
+ CFIndex j;
+ CFMutableDictionaryRef newDict;
+ CFMutableArrayRef newVlans;
+ CFStringRef vlan_if;
+
+ vlan_if = CFStringCreateWithFormat(allocator, NULL, CFSTR("vlan%d"), i);
+
+ for (j = 0; j < nActive; j++) {
+ CFStringRef active_if;
+ VLANInterfaceRef active_vlan;
+
+ active_vlan = CFArrayGetValueAtIndex(active_vlans, j);
+ active_if = VLANInterfaceGetInterface(active_vlan);
+
+ if (CFEqual(vlan_if, active_if)) {
+ goto next_if; // if VLAN interface name not available
+ }
+ }
+
+ for (j = 0; j < nConfig; j++) {
+ CFDictionaryRef config;
+ CFStringRef config_if;
+
+ config = CFArrayGetValueAtIndex(config_vlans, j);
+ if (!isA_CFDictionary(config)) {
+ continue; // if the prefs are confused
+ }
+
+ config_if = CFDictionaryGetValue(config, __kVLANInterface_interface);
+ if (!isA_CFString(config_if)) {
+ continue; // if the prefs are confused
+ }
+
+ if (CFEqual(vlan_if, config_if)) {
+ goto next_if; // if VLAN interface name not available
+ }
+ }
+
+ /* create the vlan */
+
+ newDict = CFDictionaryCreateMutable(allocator,
+ 0,
+ &kCFTypeDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks);
+ CFDictionaryAddValue(newDict, __kVLANInterface_interface, vlan_if);
+ CFDictionaryAddValue(newDict, __kVLANInterface_device, device);
+ CFDictionaryAddValue(newDict, __kVLANInterface_tag, tag);
+ if (options != NULL) {
+ CFDictionaryAddValue(newDict, __kVLANInterface_options, options);
+ }
+
+ /* create the accessor handle to be returned */
+
+ newVlan = __VLANInterfaceCreatePrivate(allocator, vlan_if, device, tag, options);
+
+ /* save in the prefs */
+
+ if (nConfig == 0) {
+ newVlans = CFArrayCreateMutable(allocator, 0, &kCFTypeArrayCallBacks);
+ } else {
+ newVlans = CFArrayCreateMutableCopy(allocator, 0, config_vlans);
+ }
+ CFArrayAppendValue(newVlans, newDict);
+ CFRelease(newDict);
+
+ (void) SCPreferencesSetValue(prefsPrivate->prefs, VLAN_PREFERENCES_VLANS, newVlans);
+ CFRelease(newVlans);
+
+ /* yes, we've change the configuration */
+ setConfigurationChanged(prefs);
+
+ next_if :
+ CFRelease(vlan_if);
+ }
+
+ CFRelease(active_vlans);
+
+ done :
+
+ pthread_mutex_unlock(&prefsPrivate->lock);
+
+ return (VLANInterfaceRef) newVlan;
+}
+
+
+Boolean
+VLANPreferencesUpdateInterface(VLANPreferencesRef prefs,
+ VLANInterfaceRef vlan,
+ CFStringRef newDevice,
+ CFNumberRef newTag,
+ CFDictionaryRef newOptions)
+{
+ CFAllocatorRef allocator;
+ CFIndex cur_if;
+ CFIndex dup_if;
+ CFMutableDictionaryRef newDict;
+ CFMutableArrayRef newVlans;
+ Boolean ok = FALSE;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+ CFArrayRef vlans;
+ CFStringRef vlan_if;
+
+ if (!isA_VLANPreferences(prefs)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ if (!isA_VLANInterface(vlan)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ if ((newDevice != NULL) && !isA_CFString(newDevice)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ if (newTag != NULL) {
+ if (isA_CFNumber(newTag)) {
+ int tag_val;
+
+ CFNumberGetValue(newTag, kCFNumberIntType, &tag_val);
+ if ((tag_val < 1) || (tag_val > 4094)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+ } else {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+ }
+
+ if ((newOptions != NULL)
+ && !isA_CFDictionary(newOptions) && (newOptions != (CFDictionaryRef)kCFNull)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ pthread_mutex_lock(&prefsPrivate->lock);
+
+ vlan_if = VLANInterfaceGetInterface(vlan);
+
+ vlans = SCPreferencesGetValue(prefsPrivate->prefs, VLAN_PREFERENCES_VLANS);
+ if (!isA_CFArray(vlans)) {
+ goto done; // if the prefs are confused
+ }
+
+ cur_if = findVLAN(vlans,
+ VLANInterfaceGetDevice(vlan),
+ VLANInterfaceGetTag (vlan));
+ if (cur_if == kCFNotFound) {
+ _SCErrorSet(kSCStatusNoKey);
+ goto done;
+ }
+
+ dup_if = findVLAN(vlans,
+ newDevice != NULL ? newDevice : VLANInterfaceGetDevice(vlan),
+ newTag != NULL ? newTag : VLANInterfaceGetTag (vlan));
+ if (dup_if != kCFNotFound) {
+ // if the same device/tag has already been defined
+ if (cur_if != dup_if) {
+ /*
+ * sorry, you can't update another vlan that is using
+ * the same device/tag
+ */
+ _SCErrorSet(kSCStatusKeyExists);
+ goto done;
+ }
+ }
+
+ /* update the vlan */
+
+ if (newDevice != NULL) {
+ VLANInterfaceSetDevice(vlan, newDevice);
+ } else {
+ newDevice = VLANInterfaceGetDevice(vlan);
+ }
+
+ if (newTag != NULL) {
+ VLANInterfaceSetTag(vlan, newTag);
+ } else {
+ newTag = VLANInterfaceGetTag(vlan);
+ }
+
+ if (newOptions != NULL) {
+ if (newOptions != (CFDictionaryRef)kCFNull) {
+ VLANInterfaceSetOptions(vlan, newOptions);
+ } else {
+ VLANInterfaceSetOptions(vlan, NULL);
+ newOptions = NULL;
+ }
+ } else {
+ newOptions = VLANInterfaceGetOptions(vlan);
+ }
+
+ /* update the prefs */
+
+ allocator = CFGetAllocator(prefs);
+ newDict = CFDictionaryCreateMutable(allocator,
+ 0,
+ &kCFTypeDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks);
+ CFDictionaryAddValue(newDict, __kVLANInterface_interface, vlan_if);
+ CFDictionaryAddValue(newDict, __kVLANInterface_device, newDevice);
+ CFDictionaryAddValue(newDict, __kVLANInterface_tag, newTag);
+ if (newOptions != NULL) {
+ CFDictionaryAddValue(newDict, __kVLANInterface_options, newOptions);
+ }
+
+ /* update the prefs */
+
+ newVlans = CFArrayCreateMutableCopy(allocator, 0, vlans);
+ CFArrayRemoveValueAtIndex(newVlans, cur_if);
+ CFArrayAppendValue(newVlans, newDict);
+ CFRelease(newDict);
+
+ (void) SCPreferencesSetValue(prefsPrivate->prefs, VLAN_PREFERENCES_VLANS, newVlans);
+ CFRelease(newVlans);
+
+ /* yes, we've change the configuration */
+ setConfigurationChanged(prefs);
+
+ ok = TRUE;
+
+ done :
+
+ pthread_mutex_unlock(&prefsPrivate->lock);
+
+ return ok;
+}
+
+
+Boolean
+VLANPreferencesRemoveInterface(VLANPreferencesRef prefs,
+ VLANInterfaceRef vlan)
+{
+ CFAllocatorRef allocator;
+ CFIndex cur_if;
+ CFMutableArrayRef newVlans;
+ Boolean ok = FALSE;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+ CFArrayRef vlans;
+
+ if (!isA_VLANPreferences(prefs)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ if (!isA_VLANInterface(vlan)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ pthread_mutex_lock(&prefsPrivate->lock);
+
+ vlans = SCPreferencesGetValue(prefsPrivate->prefs, VLAN_PREFERENCES_VLANS);
+ if (!isA_CFArray(vlans)) {
+ _SCErrorSet(kSCStatusNoKey);
+ goto done; // if the prefs are confused
+ }
+
+ cur_if = findVLAN(vlans,
+ VLANInterfaceGetDevice(vlan),
+ VLANInterfaceGetTag (vlan));
+ if (cur_if == kCFNotFound) {
+ _SCErrorSet(kSCStatusNoKey);
+ goto done;
+ }
+
+ /* remove the vlan */
+
+ allocator = CFGetAllocator(prefs);
+ newVlans = CFArrayCreateMutableCopy(allocator, 0, vlans);
+ CFArrayRemoveValueAtIndex(newVlans, cur_if);
+
+ (void) SCPreferencesSetValue(prefsPrivate->prefs, VLAN_PREFERENCES_VLANS, newVlans);
+ CFRelease(newVlans);
+
+ /* yes, we've change the configuration */
+ setConfigurationChanged(prefs);
+
+ ok = TRUE;
+
+ done :
+
+ pthread_mutex_unlock(&prefsPrivate->lock);
+
+ return ok;
+}
+
+
+Boolean
+VLANPreferencesCommitChanges(VLANPreferencesRef prefs)
+{
+ Boolean ok = FALSE;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+
+ if (!isA_VLANPreferences(prefs)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ ok = SCPreferencesCommitChanges(prefsPrivate->prefs);
+ if (!ok) {
+ return ok;
+ }
+
+ if (prefsPrivate->vlBase != NULL) {
+ CFRelease(prefsPrivate->vlBase);
+ prefsPrivate->vlBase = NULL;
+ }
+
+ return TRUE;
+}
+
+
+Boolean
+_VLANPreferencesUpdateConfiguration(VLANPreferencesRef prefs)
+{
+ CFArrayRef active = NULL;
+ CFArrayRef config = NULL;
+ CFMutableDictionaryRef devices = NULL;
+ CFIndex i;
+ CFIndex nActive;
+ CFIndex nConfig;
+ Boolean ok = FALSE;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+ int s = -1;
+
+ if (!isA_VLANPreferences(prefs)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ /* configured VLANs */
+ if (prefsPrivate->vlBase != NULL) {
+ /*
+ * updated VLAN preferences have not been committed
+ * so we ignore any in-progress changes and apply the
+ * saved preferences.
+ */
+ config = CFRetain(prefsPrivate->vlBase);
+ } else {
+ /*
+ * apply the saved preferences
+ */
+ config = VLANPreferencesCopyInterfaces(prefs);
+ }
+ nConfig = CFArrayGetCount(config);
+
+ /* [parent] devices */
+ devices = CFDictionaryCreateMutable(NULL,
+ 0,
+ &kCFTypeDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks);
+
+ /* active VLANs */
+ active = _VLANPreferencesCopyActiveInterfaces();
+ nActive = CFArrayGetCount(active);
+
+ /* remove any no-longer-configured VLAN interfaces */
+ for (i = 0; i < nActive; i++) {
+ VLANInterfaceRef a_vlan;
+ CFStringRef a_vlan_if;
+ CFIndex j;
+ Boolean found = FALSE;
+
+ a_vlan = CFArrayGetValueAtIndex(active, i);
+ a_vlan_if = VLANInterfaceGetInterface(a_vlan);
+
+ for (j = 0; j < nConfig; j++) {
+ VLANInterfaceRef c_vlan;
+ CFStringRef c_vlan_if;
+
+ c_vlan = CFArrayGetValueAtIndex(config, j);
+ c_vlan_if = VLANInterfaceGetInterface(c_vlan);
+
+ if (CFEqual(a_vlan_if, c_vlan_if)) {
+ found = TRUE;
+ break;
+ }
+ }
+
+ if (!found) {
+ // remove VLAN interface
+ if (s == -1) {
+ s = inet_dgram_socket();
+ }
+
+ ok = _VLAN_destroy(s, a_vlan_if);
+ if (!ok) {
+ goto done;
+ }
+ }
+ }
+
+ /* create (and update) configured VLAN interfaces */
+ for (i = 0; i < nConfig; i++) {
+ VLANInterfaceRef c_vlan;
+ CFStringRef c_vlan_device;
+ CFStringRef c_vlan_if;
+ Boolean found = FALSE;
+ CFIndex j;
+ CFBooleanRef supported;
+
+ c_vlan = CFArrayGetValueAtIndex(config, i);
+ c_vlan_device = VLANInterfaceGetDevice(c_vlan);
+ c_vlan_if = VLANInterfaceGetInterface(c_vlan);
+
+ // determine if the [parent] device supports VLANs
+ supported = CFDictionaryGetValue(devices, c_vlan_device);
+ if (supported == NULL) {
+ supported = IsVLANSupported(c_vlan_device) ? kCFBooleanTrue
+ : kCFBooleanFalse;
+ CFDictionaryAddValue(devices, c_vlan_device, supported);
+ }
+
+ for (j = 0; j < nActive; j++) {
+ VLANInterfaceRef a_vlan;
+ CFStringRef a_vlan_if;
+
+ a_vlan = CFArrayGetValueAtIndex(active, j);
+ a_vlan_if = VLANInterfaceGetInterface(a_vlan);
+
+ if (CFEqual(c_vlan_if, a_vlan_if)) {
+ if (!__VLANInterfaceEquiv(c_vlan, a_vlan)) {
+ // update VLAN interface;
+ if (s == -1) {
+ s = inet_dgram_socket();
+ }
+
+ if (CFBooleanGetValue(supported)) {
+ // if the new [parent] device supports VLANs
+ ok = _VLANDevice_unset(s, c_vlan_if);
+ if (!ok) {
+ goto done;
+ }
+
+ ok = _VLANDevice_set(s,
+ c_vlan_if,
+ c_vlan_device,
+ VLANInterfaceGetTag(c_vlan));
+ if (!ok) {
+ goto done;
+ }
+ } else {
+ // if the new [parent] device does not support VLANs
+ ok = _VLAN_destroy(s, c_vlan_if);
+ if (!ok) {
+ goto done;
+ }
+ }
+ }
+
+ found = TRUE;
+ break;
+ }
+ }
+
+ if (!found && CFBooleanGetValue(supported)) {
+ // if the [parent] device supports VLANs, add new interface
+ if (s == -1) {
+ s = inet_dgram_socket();
+ }
+
+ ok = _VLAN_create(s, c_vlan_if);
+ if (!ok) {
+ goto done;
+ }
+
+ ok = _VLANDevice_set(s,
+ c_vlan_if,
+ c_vlan_device,
+ VLANInterfaceGetTag(c_vlan));
+ if (!ok) {
+ goto done;
+ }
+ }
+
+ }
+
+ ok = TRUE;
+
+ done :
+
+ if (active) CFRelease(active);
+ if (config) CFRelease(config);
+ if (devices) CFRelease(devices);
+ if (s != -1) (void) close(s);
+
+ return ok;
+}
+
+
+Boolean
+VLANPreferencesApplyChanges(VLANPreferencesRef prefs)
+{
+ Boolean ok = FALSE;
+ VLANPreferencesPrivateRef prefsPrivate = (VLANPreferencesPrivateRef)prefs;
+
+ if (!isA_VLANPreferences(prefs)) {
+ _SCErrorSet(kSCStatusInvalidArgument);
+ return FALSE;
+ }
+
+ pthread_mutex_lock(&prefsPrivate->lock);
+
+ /* apply the preferences */
+ ok = SCPreferencesApplyChanges(prefsPrivate->prefs);
+ if (!ok) {
+ goto done;
+ }
+
+ /* apply the VLAN configuration */
+ ok = _VLANPreferencesUpdateConfiguration(prefs);
+ if (!ok) {
+ goto done;
+ }
+
+ ok = TRUE;
+
+ done :
+
+ pthread_mutex_unlock(&prefsPrivate->lock);
+
+ return ok;
+}
projects / apple / configd.git / commitdiff
