Merge pull request #96 from keeshux/block-local-network
Block local network
This commit is contained in:
Davide De Rosa
GitHub
commit
84a81ccd13
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@ -32,6 +32,12 @@
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0EFEB46D2006D3C800F81029 /* Data+Manipulation.swift in Sources */,
|
0EFEB46D2006D3C800F81029 /* Data+Manipulation.swift in Sources */,
|
||||||
0EFEB47B2006D3C800F81029 /* TunnelKitProvider.swift in Sources */,
|
0EFEB47B2006D3C800F81029 /* TunnelKitProvider.swift in Sources */,
|
||||||
0ECE3528212EB7770040F253 /* CryptoContainer.swift in Sources */,
|
0ECE3528212EB7770040F253 /* CryptoContainer.swift in Sources */,
|
||||||
|
|
@ -1285,6 +1312,7 @@
|
||||||
0EE7A79920F6296F00B42E6A /* PacketMacros.m in Sources */,
|
0EE7A79920F6296F00B42E6A /* PacketMacros.m in Sources */,
|
||||||
0EEC49DD20B5E732008FEB91 /* Utils.swift in Sources */,
|
0EEC49DD20B5E732008FEB91 /* Utils.swift in Sources */,
|
||||||
0EFEB4B12007627700F81029 /* MemoryDestination.swift in Sources */,
|
0EFEB4B12007627700F81029 /* MemoryDestination.swift in Sources */,
|
||||||
|
0E0B20432278A85C007A3CB9 /* RoutingTableEntry.m in Sources */,
|
||||||
0E58BF5A22411FEF006FB157 /* LZO.m in Sources */,
|
0E58BF5A22411FEF006FB157 /* LZO.m in Sources */,
|
||||||
0EC1BBA620D712DE007C4C7B /* DNSResolver.swift in Sources */,
|
0EC1BBA620D712DE007C4C7B /* DNSResolver.swift in Sources */,
|
||||||
0E12B29F21449ADB00B4BAE9 /* NSRegularExpression+Shortcuts.swift in Sources */,
|
0E12B29F21449ADB00B4BAE9 /* NSRegularExpression+Shortcuts.swift in Sources */,
|
||||||
|
|
@ -1303,6 +1331,7 @@
|
||||||
0EFEB4982006D7F300F81029 /* ZeroingData.swift in Sources */,
|
0EFEB4982006D7F300F81029 /* ZeroingData.swift in Sources */,
|
||||||
0EFEB4A32006D7F300F81029 /* Errors.m in Sources */,
|
0EFEB4A32006D7F300F81029 /* Errors.m in Sources */,
|
||||||
0EFEB4A22006D7F300F81029 /* CoreConfiguration.swift in Sources */,
|
0EFEB4A22006D7F300F81029 /* CoreConfiguration.swift in Sources */,
|
||||||
|
0EFB902C22788512006405E4 /* RoutingTable.m in Sources */,
|
||||||
0EFEB4952006D7F300F81029 /* SecureRandom.swift in Sources */,
|
0EFEB4952006D7F300F81029 /* SecureRandom.swift in Sources */,
|
||||||
0EFEB49A2006D7F300F81029 /* MSS.m in Sources */,
|
0EFEB49A2006D7F300F81029 /* MSS.m in Sources */,
|
||||||
0ECE352A212EB88E0040F253 /* CryptoContainer.swift in Sources */,
|
0ECE352A212EB88E0040F253 /* CryptoContainer.swift in Sources */,
|
||||||
|
|
@ -1358,6 +1387,7 @@
|
||||||
0EA82A302190B2B9007960EB /* ControlChannelTests.swift in Sources */,
|
0EA82A302190B2B9007960EB /* ControlChannelTests.swift in Sources */,
|
||||||
0EA82A312190B2B9007960EB /* DataManipulationTests.swift in Sources */,
|
0EA82A312190B2B9007960EB /* DataManipulationTests.swift in Sources */,
|
||||||
0EA82A382190B2B9007960EB /* PacketTests.swift in Sources */,
|
0EA82A382190B2B9007960EB /* PacketTests.swift in Sources */,
|
||||||
|
0E0B203D227886AD007A3CB9 /* RoutingTests.swift in Sources */,
|
||||||
0EA82A3B2190B2B9007960EB /* RawPerformanceTests.swift in Sources */,
|
0EA82A3B2190B2B9007960EB /* RawPerformanceTests.swift in Sources */,
|
||||||
0EA82A362190B2B9007960EB /* EncryptionTests.swift in Sources */,
|
0EA82A362190B2B9007960EB /* EncryptionTests.swift in Sources */,
|
||||||
0EA82A3D2190B2B9007960EB /* TestUtils.swift in Sources */,
|
0EA82A3D2190B2B9007960EB /* TestUtils.swift in Sources */,
|
||||||
|
|
|
||||||
|
|
@ -648,6 +648,43 @@ extension TunnelKitProvider: SessionProxyDelegate {
|
||||||
// only set if there is a proxy (proxySettings set to non-nil above)
|
// only set if there is a proxy (proxySettings set to non-nil above)
|
||||||
proxySettings?.exceptionList = cfg.sessionConfiguration.proxyBypassDomains ?? reply.options.proxyBypassDomains
|
proxySettings?.exceptionList = cfg.sessionConfiguration.proxyBypassDomains ?? reply.options.proxyBypassDomains
|
||||||
|
|
||||||
|
// block LAN if desired
|
||||||
|
if routingPolicies?.contains(.blockLocal) ?? false {
|
||||||
|
let table = RoutingTable()
|
||||||
|
if isIPv4Gateway,
|
||||||
|
let gateway = table.defaultGateway4()?.gateway(),
|
||||||
|
let route = table.broadestRoute4(matchingDestination: gateway) {
|
||||||
|
|
||||||
|
route.partitioned().forEach {
|
||||||
|
let destination = $0.network()
|
||||||
|
guard let netmask = $0.networkMask() else {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
log.info("Block local: Suppressing IPv4 route \(destination)/\($0.prefix())")
|
||||||
|
|
||||||
|
let included = NEIPv4Route(destinationAddress: destination, subnetMask: netmask)
|
||||||
|
included.gatewayAddress = reply.options.ipv4?.defaultGateway
|
||||||
|
ipv4Settings?.includedRoutes?.append(included)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if isIPv6Gateway,
|
||||||
|
let gateway = table.defaultGateway6()?.gateway(),
|
||||||
|
let route = table.broadestRoute6(matchingDestination: gateway) {
|
||||||
|
|
||||||
|
route.partitioned().forEach {
|
||||||
|
let destination = $0.network()
|
||||||
|
let prefix = $0.prefix()
|
||||||
|
|
||||||
|
log.info("Block local: Suppressing IPv6 route \(destination)/\($0.prefix())")
|
||||||
|
|
||||||
|
let included = NEIPv6Route(destinationAddress: destination, networkPrefixLength: prefix as NSNumber)
|
||||||
|
included.gatewayAddress = reply.options.ipv6?.defaultGateway
|
||||||
|
ipv6Settings?.includedRoutes?.append(included)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
let newSettings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: remoteAddress)
|
let newSettings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: remoteAddress)
|
||||||
newSettings.ipv4Settings = ipv4Settings
|
newSettings.ipv4Settings = ipv4Settings
|
||||||
newSettings.ipv6Settings = ipv6Settings
|
newSettings.ipv6Settings = ipv6Settings
|
||||||
|
|
|
||||||
|
|
@ -724,6 +724,9 @@ public class ConfigurationParser {
|
||||||
case .ipv6:
|
case .ipv6:
|
||||||
policies.insert(.IPv6)
|
policies.insert(.IPv6)
|
||||||
|
|
||||||
|
case .blockLocal:
|
||||||
|
policies.insert(.blockLocal)
|
||||||
|
|
||||||
default:
|
default:
|
||||||
// TODO: handle [auto]local and block-*
|
// TODO: handle [auto]local and block-*
|
||||||
continue
|
continue
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,43 @@
|
||||||
|
//
|
||||||
|
// RoutingTable.h
|
||||||
|
// TunnelKit
|
||||||
|
//
|
||||||
|
// Created by Davide De Rosa on 4/30/19.
|
||||||
|
// Copyright (c) 2019 Davide De Rosa. All rights reserved.
|
||||||
|
//
|
||||||
|
// https://github.com/keeshux
|
||||||
|
//
|
||||||
|
// This file is part of TunnelKit.
|
||||||
|
//
|
||||||
|
// TunnelKit is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// TunnelKit is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU General Public License
|
||||||
|
// along with TunnelKit. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
//
|
||||||
|
|
||||||
|
#import <Foundation/Foundation.h>
|
||||||
|
|
||||||
|
#import "RoutingTableEntry.h"
|
||||||
|
|
||||||
|
NS_ASSUME_NONNULL_BEGIN
|
||||||
|
|
||||||
|
@interface RoutingTable : NSObject
|
||||||
|
|
||||||
|
- (NSArray<RoutingTableEntry *> *)ipv4;
|
||||||
|
- (NSArray<RoutingTableEntry *> *)ipv6;
|
||||||
|
- (nullable RoutingTableEntry *)defaultGateway4;
|
||||||
|
- (nullable RoutingTableEntry *)defaultGateway6;
|
||||||
|
- (nullable RoutingTableEntry *)broadestRoute4MatchingDestination:(NSString *)destination;
|
||||||
|
- (nullable RoutingTableEntry *)broadestRoute6MatchingDestination:(NSString *)destination;
|
||||||
|
|
||||||
|
@end
|
||||||
|
|
||||||
|
NS_ASSUME_NONNULL_END
|
||||||
|
|
@ -0,0 +1,162 @@
|
||||||
|
//
|
||||||
|
// RoutingTable.m
|
||||||
|
// TunnelKit
|
||||||
|
//
|
||||||
|
// Created by Davide De Rosa on 4/30/19.
|
||||||
|
// Copyright (c) 2019 Davide De Rosa. All rights reserved.
|
||||||
|
//
|
||||||
|
// https://github.com/keeshux
|
||||||
|
//
|
||||||
|
// This file is part of TunnelKit.
|
||||||
|
//
|
||||||
|
// TunnelKit is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// TunnelKit is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU General Public License
|
||||||
|
// along with TunnelKit. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
//
|
||||||
|
|
||||||
|
#import <sys/sysctl.h>
|
||||||
|
#import "route.h"
|
||||||
|
|
||||||
|
#import "RoutingTable.h"
|
||||||
|
#import "Allocation.h"
|
||||||
|
|
||||||
|
// adapted from: https://github.com/jianpx/ios-cabin
|
||||||
|
|
||||||
|
@interface RoutingTableEntry ()
|
||||||
|
|
||||||
|
- (instancetype)initWithRTM:(const struct rt_msghdr2 *)rtm;
|
||||||
|
|
||||||
|
@end
|
||||||
|
|
||||||
|
#pragma mark -
|
||||||
|
|
||||||
|
@interface RoutingTable ()
|
||||||
|
|
||||||
|
@property (nonatomic, strong) NSArray<RoutingTableEntry *> *ipv4;
|
||||||
|
@property (nonatomic, strong) NSArray<RoutingTableEntry *> *ipv6;
|
||||||
|
|
||||||
|
@end
|
||||||
|
|
||||||
|
@implementation RoutingTable
|
||||||
|
|
||||||
|
- (instancetype)init
|
||||||
|
{
|
||||||
|
if (!(self = [super init])) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
|
||||||
|
int mib[] = { CTL_NET, PF_ROUTE, 0, 0, NET_RT_DUMP2, 0 };
|
||||||
|
const int mibLen = sizeof(mib) / sizeof(int);
|
||||||
|
size_t len;
|
||||||
|
if (sysctl(mib, mibLen, NULL, &len, NULL, 0) || (len <= 0)) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
|
||||||
|
char *buf = allocate_safely(len);
|
||||||
|
if (!buf) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
if (sysctl(mib, mibLen, buf, &len, NULL, 0)) {
|
||||||
|
free(buf);
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
|
||||||
|
NSMutableArray<RoutingTableEntry *> *entries4 = [[NSMutableArray alloc] init];
|
||||||
|
NSMutableArray<RoutingTableEntry *> *entries6 = [[NSMutableArray alloc] init];
|
||||||
|
|
||||||
|
for (const char *ptr = buf; ptr < buf + len;) {
|
||||||
|
const struct rt_msghdr2 *rtm = (struct rt_msghdr2 *)ptr;
|
||||||
|
|
||||||
|
if (rtm->rtm_addrs & RTA_DST) {
|
||||||
|
struct sockaddr *dst_sa = (struct sockaddr *)(rtm + 1); // XXX: why +1 ?!?
|
||||||
|
|
||||||
|
if (((dst_sa->sa_family == AF_INET) || (dst_sa->sa_family == AF_INET6)) && !((rtm->rtm_flags & RTF_WASCLONED) && (rtm->rtm_parentflags & RTF_PRCLONING))) {
|
||||||
|
RoutingTableEntry *entry = [[RoutingTableEntry alloc] initWithRTM:rtm];
|
||||||
|
if (!entry) {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
if (dst_sa->sa_family == AF_INET) {
|
||||||
|
[entries4 addObject:entry];
|
||||||
|
} else if (dst_sa->sa_family == AF_INET6) {
|
||||||
|
[entries6 addObject:entry];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ptr += rtm->rtm_msglen;
|
||||||
|
}
|
||||||
|
|
||||||
|
free(buf);
|
||||||
|
|
||||||
|
self.ipv4 = entries4;
|
||||||
|
self.ipv6 = entries6;
|
||||||
|
|
||||||
|
return self;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (RoutingTableEntry *)defaultGateway4
|
||||||
|
{
|
||||||
|
for (RoutingTableEntry *entry in self.ipv4) {
|
||||||
|
if ([entry isDefault]) {
|
||||||
|
return entry;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (RoutingTableEntry *)defaultGateway6
|
||||||
|
{
|
||||||
|
for (RoutingTableEntry *entry in self.ipv6) {
|
||||||
|
if ([entry isDefault]) {
|
||||||
|
return entry;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (RoutingTableEntry *)broadestRoute4MatchingDestination:(NSString *)destination
|
||||||
|
{
|
||||||
|
RoutingTableEntry *defaultRoute;
|
||||||
|
RoutingTableEntry *minRoute;
|
||||||
|
NSInteger minPrefix = 32 + 1;
|
||||||
|
for (RoutingTableEntry *route in self.ipv4) {
|
||||||
|
if ([route isDefault]) { // leave last
|
||||||
|
defaultRoute = route;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
if ([route matchesDestination:destination] && route.prefix < minPrefix) {
|
||||||
|
minRoute = route;
|
||||||
|
minPrefix = route.prefix;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return minRoute ?: defaultRoute;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (RoutingTableEntry *)broadestRoute6MatchingDestination:(NSString *)destination
|
||||||
|
{
|
||||||
|
RoutingTableEntry *defaultRoute;
|
||||||
|
RoutingTableEntry *minRoute;
|
||||||
|
NSInteger minPrefix = 128 + 1;
|
||||||
|
for (RoutingTableEntry *route in self.ipv6) {
|
||||||
|
if ([route isDefault]) { // leave last
|
||||||
|
defaultRoute = route;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
if ([route matchesDestination:destination] && route.prefix < minPrefix) {
|
||||||
|
minRoute = route;
|
||||||
|
minPrefix = route.prefix;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return minRoute ?: defaultRoute;
|
||||||
|
}
|
||||||
|
|
||||||
|
@end
|
||||||
|
|
@ -0,0 +1,48 @@
|
||||||
|
//
|
||||||
|
// RoutingTableEntry.h
|
||||||
|
// TunnelKit
|
||||||
|
//
|
||||||
|
// Created by Davide De Rosa on 4/30/19.
|
||||||
|
// Copyright (c) 2019 Davide De Rosa. All rights reserved.
|
||||||
|
//
|
||||||
|
// https://github.com/keeshux
|
||||||
|
//
|
||||||
|
// This file is part of TunnelKit.
|
||||||
|
//
|
||||||
|
// TunnelKit is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// TunnelKit is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU General Public License
|
||||||
|
// along with TunnelKit. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
//
|
||||||
|
|
||||||
|
#import <Foundation/Foundation.h>
|
||||||
|
|
||||||
|
NS_ASSUME_NONNULL_BEGIN
|
||||||
|
|
||||||
|
@interface RoutingTableEntry : NSObject
|
||||||
|
|
||||||
|
- (instancetype)initWithIPv4Network:(NSString *)network gateway:(nullable NSString *)gateway networkInterface:(NSString *)networkInterface;
|
||||||
|
- (instancetype)initWithIPv6Network:(NSString *)network gateway:(nullable NSString *)gateway networkInterface:(NSString *)networkInterface;
|
||||||
|
|
||||||
|
- (BOOL)isIPv6;
|
||||||
|
- (NSString *)network;
|
||||||
|
- (NSInteger)prefix;
|
||||||
|
- (nullable NSString *)networkMask; // nil if IPv6
|
||||||
|
- (nullable NSString *)gateway;
|
||||||
|
- (NSString *)networkInterface;
|
||||||
|
|
||||||
|
- (BOOL)isDefault;
|
||||||
|
- (BOOL)matchesDestination:(NSString *)destination;
|
||||||
|
- (NSArray<RoutingTableEntry *> *)partitioned;
|
||||||
|
|
||||||
|
@end
|
||||||
|
|
||||||
|
NS_ASSUME_NONNULL_END
|
||||||
|
|
@ -0,0 +1,587 @@
|
||||||
|
//
|
||||||
|
// RoutingTableEntry.m
|
||||||
|
// TunnelKit
|
||||||
|
//
|
||||||
|
// Created by Davide De Rosa on 4/30/19.
|
||||||
|
// Copyright (c) 2019 Davide De Rosa. All rights reserved.
|
||||||
|
//
|
||||||
|
// https://github.com/keeshux
|
||||||
|
//
|
||||||
|
// This file is part of TunnelKit.
|
||||||
|
//
|
||||||
|
// TunnelKit is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// TunnelKit is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU General Public License
|
||||||
|
// along with TunnelKit. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
//
|
||||||
|
|
||||||
|
#import <arpa/inet.h>
|
||||||
|
#import <netdb.h>
|
||||||
|
#import <net/if.h>
|
||||||
|
#import "route.h"
|
||||||
|
|
||||||
|
#import "RoutingTableEntry.h"
|
||||||
|
|
||||||
|
// adapted from: https://github.com/jianpx/ios-cabin
|
||||||
|
|
||||||
|
#define ROUNDUP(a) ((a) > 0 ? (1 + (((a) - 1) | (sizeof(uint32_t) - 1))) : sizeof(uint32_t))
|
||||||
|
|
||||||
|
typedef union {
|
||||||
|
uint32_t dummy;
|
||||||
|
struct sockaddr u_sa;
|
||||||
|
u_short u_data[128];
|
||||||
|
} sa_u;
|
||||||
|
|
||||||
|
static uint32_t RoutingTableEntryAddress4(NSString *string);
|
||||||
|
static NSData *RoutingTableEntryAddress6(NSString *string);
|
||||||
|
static NSString *RoutingTableEntryName(struct sockaddr *sa, struct sockaddr *mask, int flags);
|
||||||
|
|
||||||
|
#pragma mark -
|
||||||
|
|
||||||
|
@interface RoutingTableEntry ()
|
||||||
|
|
||||||
|
@property (nonatomic, assign) BOOL isIPv6;
|
||||||
|
@property (nonatomic, copy) NSString *network;
|
||||||
|
@property (nonatomic, assign) NSInteger prefix;
|
||||||
|
@property (nonatomic, copy) NSString *gateway;
|
||||||
|
@property (nonatomic, copy) NSString *networkInterface;
|
||||||
|
|
||||||
|
@end
|
||||||
|
|
||||||
|
@implementation RoutingTableEntry
|
||||||
|
|
||||||
|
- (instancetype)initWithNetwork:(NSString *)network prefix:(NSInteger)prefix gateway:(NSString *)gateway networkInterface:(NSString *)networkInterface
|
||||||
|
{
|
||||||
|
if (!(self = [super init])) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
|
||||||
|
self.network = network;
|
||||||
|
self.prefix = prefix;
|
||||||
|
self.gateway = gateway;
|
||||||
|
self.networkInterface = networkInterface;
|
||||||
|
|
||||||
|
return self;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (instancetype)initWithIPv4Network:(NSString *)network gateway:(NSString *)gateway networkInterface:(NSString *)networkInterface
|
||||||
|
{
|
||||||
|
NSInteger prefix = 0;
|
||||||
|
|
||||||
|
NSArray<NSString *> *networkComps = [network componentsSeparatedByString:@"/"];
|
||||||
|
network = networkComps.firstObject;
|
||||||
|
if (networkComps.count == 2) {
|
||||||
|
prefix = [networkComps.lastObject integerValue];
|
||||||
|
} else {
|
||||||
|
prefix = 32;
|
||||||
|
}
|
||||||
|
|
||||||
|
NSMutableArray<NSString *> *groups = [[network componentsSeparatedByString:@"."] mutableCopy];
|
||||||
|
if (![network isEqualToString:@"default"]) {
|
||||||
|
if (prefix == 32) {
|
||||||
|
prefix = 8 * groups.count;
|
||||||
|
}
|
||||||
|
for (NSInteger i = groups.count; i < 4; ++i) {
|
||||||
|
[groups addObject:@"0"];
|
||||||
|
}
|
||||||
|
network = [groups componentsJoinedByString:@"."];
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!(self = [self initWithNetwork:network prefix:prefix gateway:gateway networkInterface:networkInterface])) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
self.isIPv6 = NO;
|
||||||
|
return self;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (instancetype)initWithIPv6Network:(NSString *)network gateway:(NSString *)gateway networkInterface:(NSString *)networkInterface
|
||||||
|
{
|
||||||
|
NSInteger prefix = 0;
|
||||||
|
|
||||||
|
NSArray<NSString *> *networkComps = [network componentsSeparatedByString:@"/"];
|
||||||
|
network = networkComps.firstObject;
|
||||||
|
if (networkComps.count == 2) {
|
||||||
|
prefix = [networkComps.lastObject integerValue];
|
||||||
|
} else {
|
||||||
|
prefix = 128;
|
||||||
|
}
|
||||||
|
network = [[network componentsSeparatedByString:@"%"] firstObject];
|
||||||
|
gateway = [[gateway componentsSeparatedByString:@"%"] firstObject];
|
||||||
|
|
||||||
|
if (!(self = [self initWithNetwork:network prefix:prefix gateway:gateway networkInterface:networkInterface])) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
self.isIPv6 = YES;
|
||||||
|
return self;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (instancetype)initWithRTM:(const struct rt_msghdr2 *)rtm
|
||||||
|
{
|
||||||
|
NSParameterAssert(rtm);
|
||||||
|
|
||||||
|
NSString *network;
|
||||||
|
NSString *gateway;
|
||||||
|
NSString *networkInterface;
|
||||||
|
|
||||||
|
struct sockaddr *rti_info[RTAX_MAX];
|
||||||
|
struct sockaddr *sa = (struct sockaddr *)(rtm + 1);
|
||||||
|
for (int i = 0; i < RTAX_MAX; ++i) {
|
||||||
|
if (rtm->rtm_addrs & (1 << i)) {
|
||||||
|
rti_info[i] = sa;
|
||||||
|
sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa);
|
||||||
|
} else {
|
||||||
|
rti_info[i] = NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// network
|
||||||
|
sa_u destinationStruct, destinationNetmask;
|
||||||
|
bzero(&destinationStruct, sizeof(destinationStruct));
|
||||||
|
if (rtm->rtm_addrs & RTA_DST) {
|
||||||
|
bcopy(rti_info[RTAX_DST], &destinationStruct, rti_info[RTAX_DST]->sa_len);
|
||||||
|
}
|
||||||
|
bzero(&destinationNetmask, sizeof(destinationNetmask));
|
||||||
|
if (rtm->rtm_addrs & RTA_NETMASK) {
|
||||||
|
bcopy(rti_info[RTAX_NETMASK], &destinationNetmask, rti_info[RTAX_NETMASK]->sa_len);
|
||||||
|
}
|
||||||
|
network = RoutingTableEntryName(&destinationStruct.u_sa, &destinationNetmask.u_sa, rtm->rtm_flags);
|
||||||
|
|
||||||
|
// gateway
|
||||||
|
sa_u gatewayStruct;
|
||||||
|
bzero(&gatewayStruct, sizeof(gatewayStruct));
|
||||||
|
if (rtm->rtm_addrs & RTA_GATEWAY) {
|
||||||
|
bcopy(rti_info[RTAX_GATEWAY], &gatewayStruct, rti_info[RTAX_GATEWAY]->sa_len);
|
||||||
|
}
|
||||||
|
gateway = RoutingTableEntryName(rti_info[RTAX_GATEWAY], NULL, RTF_HOST);
|
||||||
|
|
||||||
|
// network interface
|
||||||
|
char networkInterfaceStr[IF_NAMESIZE];
|
||||||
|
const char *networkInterfaceName = if_indextoname(rtm->rtm_index, networkInterfaceStr);
|
||||||
|
if (networkInterfaceName) {
|
||||||
|
networkInterface = [NSString stringWithCString:networkInterfaceName encoding:NSASCIIStringEncoding];
|
||||||
|
}
|
||||||
|
|
||||||
|
if (rti_info[RTAX_DST]->sa_family == AF_INET6) {
|
||||||
|
return [self initWithIPv6Network:network gateway:gateway networkInterface:networkInterface];
|
||||||
|
} else {
|
||||||
|
return [self initWithIPv4Network:network gateway:gateway networkInterface:networkInterface];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
- (NSString *)networkMask
|
||||||
|
{
|
||||||
|
struct in_addr mask;
|
||||||
|
mask.s_addr = htonl(~((1 << (32 - self.prefix)) - 1));
|
||||||
|
const char *address = inet_ntoa(mask);
|
||||||
|
return [NSString stringWithCString:address encoding:NSASCIIStringEncoding];
|
||||||
|
}
|
||||||
|
|
||||||
|
- (BOOL)isDefault
|
||||||
|
{
|
||||||
|
return [self.network isEqualToString:@"default"];
|
||||||
|
}
|
||||||
|
|
||||||
|
- (BOOL)matchesDestination:(NSString *)destination
|
||||||
|
{
|
||||||
|
NSParameterAssert(destination);
|
||||||
|
|
||||||
|
if ([self isDefault]) {
|
||||||
|
return YES;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (self.isIPv6) {
|
||||||
|
NSData *networkAddress = RoutingTableEntryAddress6(self.network);
|
||||||
|
NSData *destinationAddress = RoutingTableEntryAddress6(destination);
|
||||||
|
|
||||||
|
// NSLog(@"network: %@ = %@", networkAddress, self.network);
|
||||||
|
// NSLog(@"destination: %@ = %@", destinationAddress, destination);
|
||||||
|
|
||||||
|
const uint8_t *networkPtr = networkAddress.bytes;
|
||||||
|
const uint8_t *destinationPtr = destinationAddress.bytes;
|
||||||
|
|
||||||
|
NSInteger leftBits = self.prefix;
|
||||||
|
// NSLog(@"\tprefix = %u", (int)self.prefix);
|
||||||
|
for (NSInteger i = 0; leftBits > 0; ++i) {
|
||||||
|
uint8_t networkMask;
|
||||||
|
if (leftBits >= 8) {
|
||||||
|
networkMask = 0xff;
|
||||||
|
} else {
|
||||||
|
networkMask = ~((1 << (8 - leftBits)) - 1);
|
||||||
|
}
|
||||||
|
// NSLog(@"\tnetworkMask[%u] = %x", (int)i, networkMask);
|
||||||
|
if (((networkPtr[i] ^ destinationPtr[i]) & networkMask) != 0) {
|
||||||
|
return NO;
|
||||||
|
}
|
||||||
|
leftBits -= 8;
|
||||||
|
}
|
||||||
|
// NSLog(@"\tMATCH");
|
||||||
|
return YES;
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
const uint32_t networkAddress = RoutingTableEntryAddress4(self.network);
|
||||||
|
const uint32_t destinationAddress = RoutingTableEntryAddress4(destination);
|
||||||
|
const uint32_t networkMask = ~((1 << (32 - self.prefix)) - 1);
|
||||||
|
|
||||||
|
// NSLog(@"network: %x = %@", networkAddress, self.network);
|
||||||
|
// NSLog(@"destination: %x = %@", destinationAddress, destination);
|
||||||
|
// NSLog(@"mask: %x", networkMask);
|
||||||
|
|
||||||
|
return ((networkAddress ^ destinationAddress) & networkMask) == 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
- (NSArray<RoutingTableEntry *> *)partitioned
|
||||||
|
{
|
||||||
|
NSMutableArray<RoutingTableEntry *> *segments = [[NSMutableArray alloc] init];
|
||||||
|
const int halfPrefix = (int)(self.prefix + 1);
|
||||||
|
if (self.isIPv6) {
|
||||||
|
struct in6_addr saddr1, saddr2;
|
||||||
|
char addr[INET6_ADDRSTRLEN];
|
||||||
|
NSData *addressData = RoutingTableEntryAddress6(self.network);
|
||||||
|
memcpy(&saddr1, addressData.bytes, addressData.length);
|
||||||
|
NSMutableData *addressData2 = [addressData mutableCopy];
|
||||||
|
|
||||||
|
uint8_t *addressBytes2 = (uint8_t *)addressData2.bytes;
|
||||||
|
const uint8_t mask2 = 1 << (8 - halfPrefix % 8);
|
||||||
|
addressBytes2[halfPrefix / 8] |= mask2;
|
||||||
|
|
||||||
|
memcpy(&saddr2, addressData2.bytes, addressData2.length);
|
||||||
|
|
||||||
|
inet_ntop(AF_INET6, &saddr1, addr, INET6_ADDRSTRLEN);
|
||||||
|
NSString *network1 = [NSString stringWithFormat:@"%s/%d", addr, halfPrefix];
|
||||||
|
inet_ntop(AF_INET6, &saddr2, addr, INET6_ADDRSTRLEN);
|
||||||
|
NSString *network2 = [NSString stringWithFormat:@"%s/%d", addr, halfPrefix];
|
||||||
|
|
||||||
|
[segments addObject:[[RoutingTableEntry alloc] initWithIPv6Network:network1 gateway:self.gateway networkInterface:self.networkInterface]];
|
||||||
|
[segments addObject:[[RoutingTableEntry alloc] initWithIPv6Network:network2 gateway:self.gateway networkInterface:self.networkInterface]];
|
||||||
|
} else {
|
||||||
|
struct in_addr saddr1, saddr2;
|
||||||
|
const uint32_t address = RoutingTableEntryAddress4(self.network);
|
||||||
|
saddr1.s_addr = htonl(address);
|
||||||
|
saddr2.s_addr = htonl(address | (1 << (32 - halfPrefix)));
|
||||||
|
|
||||||
|
// XXX: inet_ntoa returns pointer to static variable, copy before next call
|
||||||
|
const char *address1 = inet_ntoa(saddr1);
|
||||||
|
NSString *network1 = [NSString stringWithFormat:@"%s/%d", address1, halfPrefix];
|
||||||
|
const char *address2 = inet_ntoa(saddr2);
|
||||||
|
NSString *network2 = [NSString stringWithFormat:@"%s/%d", address2, halfPrefix];
|
||||||
|
|
||||||
|
[segments addObject:[[RoutingTableEntry alloc] initWithIPv4Network:network1 gateway:self.gateway networkInterface:self.networkInterface]];
|
||||||
|
[segments addObject:[[RoutingTableEntry alloc] initWithIPv4Network:network2 gateway:self.gateway networkInterface:self.networkInterface]];
|
||||||
|
}
|
||||||
|
return segments;
|
||||||
|
}
|
||||||
|
|
||||||
|
- (NSString *)description
|
||||||
|
{
|
||||||
|
return [NSString stringWithFormat:@"{%@/%ld -> %@ via %@}", self.network, self.prefix, self.gateway ?: @"nil", self.networkInterface];
|
||||||
|
}
|
||||||
|
|
||||||
|
@end
|
||||||
|
|
||||||
|
#pragma mark -
|
||||||
|
|
||||||
|
static char *netname(uint32_t in, uint32_t mask);
|
||||||
|
static char *netname6(struct sockaddr_in6 *sa6, struct sockaddr *sam);
|
||||||
|
static char *routename(uint32_t in);
|
||||||
|
static char *routename6(struct sockaddr_in6 *sa6);
|
||||||
|
static uint32_t forgemask(uint32_t a);
|
||||||
|
static void domask(char *dst, uint32_t addr, uint32_t mask);
|
||||||
|
static void trimdomain(char *cp);
|
||||||
|
|
||||||
|
static inline uint32_t RoutingTableEntryAddress4(NSString *string)
|
||||||
|
{
|
||||||
|
struct in_addr addr;
|
||||||
|
if (inet_pton(AF_INET, [string cStringUsingEncoding:NSASCIIStringEncoding], &addr) <= 0) {
|
||||||
|
return UINT32_MAX;
|
||||||
|
}
|
||||||
|
return CFSwapInt32BigToHost(addr.s_addr);
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline NSData *RoutingTableEntryAddress6(NSString *string)
|
||||||
|
{
|
||||||
|
struct in6_addr addr;
|
||||||
|
if (inet_pton(AF_INET6, [string cStringUsingEncoding:NSASCIIStringEncoding], &addr) <= 0) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
NSMutableData *data = [[NSMutableData alloc] initWithLength:16];
|
||||||
|
memcpy(data.mutableBytes, (void *)&addr, data.length);
|
||||||
|
return data;
|
||||||
|
}
|
||||||
|
|
||||||
|
static NSString *RoutingTableEntryName(struct sockaddr *sa, struct sockaddr *mask, int flags)
|
||||||
|
{
|
||||||
|
char *cp = NULL;
|
||||||
|
switch (sa->sa_family) {
|
||||||
|
case AF_INET: {
|
||||||
|
struct sockaddr_in *sin = (struct sockaddr_in *)sa;
|
||||||
|
|
||||||
|
if ((sin->sin_addr.s_addr == INADDR_ANY) && mask && (ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr) == 0L || mask->sa_len == 0)) {
|
||||||
|
cp = "default";
|
||||||
|
} else if (flags & RTF_HOST) {
|
||||||
|
cp = routename(sin->sin_addr.s_addr);
|
||||||
|
} else if (mask) {
|
||||||
|
cp = netname(sin->sin_addr.s_addr, ntohl(((struct sockaddr_in *)mask)->sin_addr.s_addr));
|
||||||
|
} else {
|
||||||
|
cp = netname(sin->sin_addr.s_addr, 0L);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case AF_INET6: {
|
||||||
|
struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
|
||||||
|
struct in6_addr *in6 = &sa6->sin6_addr;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* XXX: This is a special workaround for KAME kernels.
|
||||||
|
* sin6_scope_id field of SA should be set in the future.
|
||||||
|
*/
|
||||||
|
if (IN6_IS_ADDR_LINKLOCAL(in6) ||
|
||||||
|
IN6_IS_ADDR_MC_NODELOCAL(in6) ||
|
||||||
|
IN6_IS_ADDR_MC_LINKLOCAL(in6)) {
|
||||||
|
|
||||||
|
/* XXX: override is ok? */
|
||||||
|
sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)&in6->s6_addr[2]);
|
||||||
|
*(u_short *)&in6->s6_addr[2] = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (flags & RTF_HOST) {
|
||||||
|
cp = routename6(sa6);
|
||||||
|
} else if (mask) {
|
||||||
|
cp = netname6(sa6, mask);
|
||||||
|
} else {
|
||||||
|
cp = netname6(sa6, NULL);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (!cp) {
|
||||||
|
return nil;
|
||||||
|
}
|
||||||
|
return [NSString stringWithCString:cp encoding:NSASCIIStringEncoding];
|
||||||
|
}
|
||||||
|
|
||||||
|
char *routename(uint32_t in)
|
||||||
|
{
|
||||||
|
static char line[MAXHOSTNAMELEN];
|
||||||
|
|
||||||
|
#define C(x) ((x) & 0xff)
|
||||||
|
in = ntohl(in);
|
||||||
|
snprintf(line, sizeof(line), "%u.%u.%u.%u", C(in >> 24), C(in >> 16), C(in >> 8), C(in));
|
||||||
|
|
||||||
|
return (line);
|
||||||
|
}
|
||||||
|
|
||||||
|
char *routename6(struct sockaddr_in6 *sa6)
|
||||||
|
{
|
||||||
|
static char line[MAXHOSTNAMELEN];
|
||||||
|
int flag = NI_NUMERICHOST;
|
||||||
|
/* use local variable for safety */
|
||||||
|
struct sockaddr_in6 sa6_local = {sizeof(sa6_local), AF_INET6, };
|
||||||
|
|
||||||
|
sa6_local.sin6_addr = sa6->sin6_addr;
|
||||||
|
sa6_local.sin6_scope_id = sa6->sin6_scope_id;
|
||||||
|
|
||||||
|
getnameinfo((struct sockaddr *)&sa6_local, sa6_local.sin6_len, line, sizeof(line), NULL, 0, flag);
|
||||||
|
|
||||||
|
return line;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* Return the name of the network whose address is given.
|
||||||
|
* The address is assumed to be that of a net or subnet, not a host.
|
||||||
|
*/
|
||||||
|
char *netname(uint32_t in, uint32_t mask)
|
||||||
|
{
|
||||||
|
char *cp = 0;
|
||||||
|
static char line[MAXHOSTNAMELEN];
|
||||||
|
struct netent *np = 0;
|
||||||
|
uint32_t net, omask, dmask;
|
||||||
|
uint32_t i;
|
||||||
|
|
||||||
|
i = ntohl(in);
|
||||||
|
dmask = forgemask(i);
|
||||||
|
omask = mask;
|
||||||
|
// if (!nflag && i) {
|
||||||
|
if (i) {
|
||||||
|
net = i & dmask;
|
||||||
|
if (!(np = getnetbyaddr(i, AF_INET)) && net != i)
|
||||||
|
np = getnetbyaddr(net, AF_INET);
|
||||||
|
if (np) {
|
||||||
|
cp = np->n_name;
|
||||||
|
trimdomain(cp);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (cp) {
|
||||||
|
strncpy(line, cp, sizeof(line) - 1);
|
||||||
|
} else {
|
||||||
|
switch (dmask) {
|
||||||
|
case IN_CLASSA_NET:
|
||||||
|
if ((i & IN_CLASSA_HOST) == 0) {
|
||||||
|
snprintf(line, sizeof(line), "%u", C(i >> 24));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
/* FALLTHROUGH */
|
||||||
|
case IN_CLASSB_NET:
|
||||||
|
if ((i & IN_CLASSB_HOST) == 0) {
|
||||||
|
snprintf(line, sizeof(line), "%u.%u",
|
||||||
|
C(i >> 24), C(i >> 16));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
/* FALLTHROUGH */
|
||||||
|
case IN_CLASSC_NET:
|
||||||
|
if ((i & IN_CLASSC_HOST) == 0) {
|
||||||
|
snprintf(line, sizeof(line), "%u.%u.%u",
|
||||||
|
C(i >> 24), C(i >> 16), C(i >> 8));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
/* FALLTHROUGH */
|
||||||
|
default:
|
||||||
|
snprintf(line, sizeof(line), "%u.%u.%u.%u",
|
||||||
|
C(i >> 24), C(i >> 16), C(i >> 8), C(i));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
domask(line+strlen(line), i, omask);
|
||||||
|
return (line);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
char *netname6(struct sockaddr_in6 *sa6, struct sockaddr *sam)
|
||||||
|
{
|
||||||
|
static char line[MAXHOSTNAMELEN + 10];
|
||||||
|
u_char *lim;
|
||||||
|
int masklen, illegal = 0, flag = NI_NUMERICHOST;
|
||||||
|
struct in6_addr *mask = sam ? &((struct sockaddr_in6 *)sam)->sin6_addr : 0;
|
||||||
|
|
||||||
|
if (sam && sam->sa_len == 0) {
|
||||||
|
masklen = 0;
|
||||||
|
} else if (mask) {
|
||||||
|
u_char *p = (u_char *)mask;
|
||||||
|
for (masklen = 0, lim = p + 16; p < lim; p++) {
|
||||||
|
switch (*p) {
|
||||||
|
case 0xff:
|
||||||
|
masklen += 8;
|
||||||
|
break;
|
||||||
|
case 0xfe:
|
||||||
|
masklen += 7;
|
||||||
|
break;
|
||||||
|
case 0xfc:
|
||||||
|
masklen += 6;
|
||||||
|
break;
|
||||||
|
case 0xf8:
|
||||||
|
masklen += 5;
|
||||||
|
break;
|
||||||
|
case 0xf0:
|
||||||
|
masklen += 4;
|
||||||
|
break;
|
||||||
|
case 0xe0:
|
||||||
|
masklen += 3;
|
||||||
|
break;
|
||||||
|
case 0xc0:
|
||||||
|
masklen += 2;
|
||||||
|
break;
|
||||||
|
case 0x80:
|
||||||
|
masklen += 1;
|
||||||
|
break;
|
||||||
|
case 0x00:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
illegal ++;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (illegal)
|
||||||
|
fprintf(stderr, "illegal prefixlen\n");
|
||||||
|
} else {
|
||||||
|
masklen = 128;
|
||||||
|
}
|
||||||
|
if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sa6->sin6_addr)) {
|
||||||
|
return("default");
|
||||||
|
}
|
||||||
|
|
||||||
|
getnameinfo((struct sockaddr *)sa6, sa6->sin6_len, line, sizeof(line), NULL, 0, flag);
|
||||||
|
|
||||||
|
if (masklen > 0) {
|
||||||
|
sprintf(line, "%s/%u", line, masklen);
|
||||||
|
}
|
||||||
|
|
||||||
|
return line;
|
||||||
|
}
|
||||||
|
|
||||||
|
uint32_t forgemask(uint32_t a)
|
||||||
|
{
|
||||||
|
uint32_t m;
|
||||||
|
|
||||||
|
if (IN_CLASSA(a))
|
||||||
|
m = IN_CLASSA_NET;
|
||||||
|
else if (IN_CLASSB(a))
|
||||||
|
m = IN_CLASSB_NET;
|
||||||
|
else
|
||||||
|
m = IN_CLASSC_NET;
|
||||||
|
return (m);
|
||||||
|
}
|
||||||
|
|
||||||
|
void domask(char *dst, uint32_t addr, uint32_t mask)
|
||||||
|
{
|
||||||
|
int b, i;
|
||||||
|
|
||||||
|
if (!mask || (forgemask(addr) == mask)) {
|
||||||
|
*dst = '\0';
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
i = 0;
|
||||||
|
for (b = 0; b < 32; b++) {
|
||||||
|
if (mask & (1 << b)) {
|
||||||
|
int bb;
|
||||||
|
|
||||||
|
i = b;
|
||||||
|
for (bb = b+1; bb < 32; bb++)
|
||||||
|
if (!(mask & (1 << bb))) {
|
||||||
|
i = -1; /* noncontig */
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (i == -1) {
|
||||||
|
snprintf(dst, sizeof(dst), "&0x%x", mask);
|
||||||
|
} else {
|
||||||
|
snprintf(dst, sizeof(dst), "/%d", 32-i);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void trimdomain(char *cp)
|
||||||
|
{
|
||||||
|
static char domain[MAXHOSTNAMELEN + 1];
|
||||||
|
static int first = 1;
|
||||||
|
char *s;
|
||||||
|
|
||||||
|
if (first) {
|
||||||
|
first = 0;
|
||||||
|
if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
|
||||||
|
(s = strchr(domain, '.')))
|
||||||
|
(void) strcpy(domain, s + 1);
|
||||||
|
else
|
||||||
|
domain[0] = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (domain[0]) {
|
||||||
|
while ((cp = strchr(cp, '.'))) {
|
||||||
|
if (!strcasecmp(cp + 1, domain)) {
|
||||||
|
*cp = 0; /* hit it */
|
||||||
|
break;
|
||||||
|
} else {
|
||||||
|
cp++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -154,6 +154,9 @@ extension SessionProxy {
|
||||||
|
|
||||||
/// All IPv6 traffic goes through the VPN.
|
/// All IPv6 traffic goes through the VPN.
|
||||||
case IPv6
|
case IPv6
|
||||||
|
|
||||||
|
/// Block LAN while connected.
|
||||||
|
case blockLocal
|
||||||
}
|
}
|
||||||
|
|
||||||
/// :nodoc:
|
/// :nodoc:
|
||||||
|
|
|
||||||
|
|
@ -51,5 +51,6 @@ module __TunnelKitNative {
|
||||||
header "DataPathCrypto.h"
|
header "DataPathCrypto.h"
|
||||||
header "DNS.h"
|
header "DNS.h"
|
||||||
header "LZO.h"
|
header "LZO.h"
|
||||||
|
header "RoutingTable.h"
|
||||||
export *
|
export *
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,257 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2000-2017 Apple Inc. All rights reserved.
|
||||||
|
*
|
||||||
|
* @APPLE_OSREFERENCE_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. The rights granted to you under the License
|
||||||
|
* may not be used to create, or enable the creation or redistribution of,
|
||||||
|
* unlawful or unlicensed copies of an Apple operating system, or to
|
||||||
|
* circumvent, violate, or enable the circumvention or violation of, any
|
||||||
|
* terms of an Apple operating system software license agreement.
|
||||||
|
*
|
||||||
|
* 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_OSREFERENCE_LICENSE_HEADER_END@
|
||||||
|
*/
|
||||||
|
/*
|
||||||
|
* Copyright (c) 1980, 1986, 1993
|
||||||
|
* The Regents of the University of California. All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 3. All advertising materials mentioning features or use of this software
|
||||||
|
* must display the following acknowledgement:
|
||||||
|
* This product includes software developed by the University of
|
||||||
|
* California, Berkeley and its contributors.
|
||||||
|
* 4. Neither the name of the University nor the names of its contributors
|
||||||
|
* may be used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
* @(#)route.h 8.3 (Berkeley) 4/19/94
|
||||||
|
* $FreeBSD: src/sys/net/route.h,v 1.36.2.1 2000/08/16 06:14:23 jayanth Exp $
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _NET_ROUTE_H_
|
||||||
|
#define _NET_ROUTE_H_
|
||||||
|
#include <sys/appleapiopts.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
|
||||||
|
/*
|
||||||
|
* These numbers are used by reliable protocols for determining
|
||||||
|
* retransmission behavior and are included in the routing structure.
|
||||||
|
*/
|
||||||
|
struct rt_metrics {
|
||||||
|
u_int32_t rmx_locks; /* Kernel leaves these values alone */
|
||||||
|
u_int32_t rmx_mtu; /* MTU for this path */
|
||||||
|
u_int32_t rmx_hopcount; /* max hops expected */
|
||||||
|
int32_t rmx_expire; /* lifetime for route, e.g. redirect */
|
||||||
|
u_int32_t rmx_recvpipe; /* inbound delay-bandwidth product */
|
||||||
|
u_int32_t rmx_sendpipe; /* outbound delay-bandwidth product */
|
||||||
|
u_int32_t rmx_ssthresh; /* outbound gateway buffer limit */
|
||||||
|
u_int32_t rmx_rtt; /* estimated round trip time */
|
||||||
|
u_int32_t rmx_rttvar; /* estimated rtt variance */
|
||||||
|
u_int32_t rmx_pksent; /* packets sent using this route */
|
||||||
|
u_int32_t rmx_state; /* route state */
|
||||||
|
u_int32_t rmx_filler[3]; /* will be used for T/TCP later */
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* rmx_rtt and rmx_rttvar are stored as microseconds;
|
||||||
|
*/
|
||||||
|
#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#define RTF_UP 0x1 /* route usable */
|
||||||
|
#define RTF_GATEWAY 0x2 /* destination is a gateway */
|
||||||
|
#define RTF_HOST 0x4 /* host entry (net otherwise) */
|
||||||
|
#define RTF_REJECT 0x8 /* host or net unreachable */
|
||||||
|
#define RTF_DYNAMIC 0x10 /* created dynamically (by redirect) */
|
||||||
|
#define RTF_MODIFIED 0x20 /* modified dynamically (by redirect) */
|
||||||
|
#define RTF_DONE 0x40 /* message confirmed */
|
||||||
|
#define RTF_DELCLONE 0x80 /* delete cloned route */
|
||||||
|
#define RTF_CLONING 0x100 /* generate new routes on use */
|
||||||
|
#define RTF_XRESOLVE 0x200 /* external daemon resolves name */
|
||||||
|
#define RTF_LLINFO 0x400 /* DEPRECATED - exists ONLY for backward
|
||||||
|
* compatibility */
|
||||||
|
#define RTF_LLDATA 0x400 /* used by apps to add/del L2 entries */
|
||||||
|
#define RTF_STATIC 0x800 /* manually added */
|
||||||
|
#define RTF_BLACKHOLE 0x1000 /* just discard pkts (during updates) */
|
||||||
|
#define RTF_NOIFREF 0x2000 /* not eligible for RTF_IFREF */
|
||||||
|
#define RTF_PROTO2 0x4000 /* protocol specific routing flag */
|
||||||
|
#define RTF_PROTO1 0x8000 /* protocol specific routing flag */
|
||||||
|
|
||||||
|
#define RTF_PRCLONING 0x10000 /* protocol requires cloning */
|
||||||
|
#define RTF_WASCLONED 0x20000 /* route generated through cloning */
|
||||||
|
#define RTF_PROTO3 0x40000 /* protocol specific routing flag */
|
||||||
|
/* 0x80000 unused */
|
||||||
|
#define RTF_PINNED 0x100000 /* future use */
|
||||||
|
#define RTF_LOCAL 0x200000 /* route represents a local address */
|
||||||
|
#define RTF_BROADCAST 0x400000 /* route represents a bcast address */
|
||||||
|
#define RTF_MULTICAST 0x800000 /* route represents a mcast address */
|
||||||
|
#define RTF_IFSCOPE 0x1000000 /* has valid interface scope */
|
||||||
|
#define RTF_CONDEMNED 0x2000000 /* defunct; no longer modifiable */
|
||||||
|
#define RTF_IFREF 0x4000000 /* route holds a ref to interface */
|
||||||
|
#define RTF_PROXY 0x8000000 /* proxying, no interface scope */
|
||||||
|
#define RTF_ROUTER 0x10000000 /* host is a router */
|
||||||
|
#define RTF_DEAD 0x20000000 /* Route entry is being freed */
|
||||||
|
/* 0x40000000 and up unassigned */
|
||||||
|
|
||||||
|
#define RTPRF_OURS RTF_PROTO3 /* set on routes we manage */
|
||||||
|
#define RTF_BITS \
|
||||||
|
"\020\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE" \
|
||||||
|
"\10DELCLONE\11CLONING\12XRESOLVE\13LLINFO\14STATIC\15BLACKHOLE" \
|
||||||
|
"\16NOIFREF\17PROTO2\20PROTO1\21PRCLONING\22WASCLONED\23PROTO3" \
|
||||||
|
"\25PINNED\26LOCAL\27BROADCAST\30MULTICAST\31IFSCOPE\32CONDEMNED" \
|
||||||
|
"\33IFREF\34PROXY\35ROUTER"
|
||||||
|
|
||||||
|
#define IS_DIRECT_HOSTROUTE(rt) \
|
||||||
|
(((rt)->rt_flags & (RTF_HOST | RTF_GATEWAY)) == RTF_HOST)
|
||||||
|
/*
|
||||||
|
* Routing statistics.
|
||||||
|
*/
|
||||||
|
struct rtstat {
|
||||||
|
short rts_badredirect; /* bogus redirect calls */
|
||||||
|
short rts_dynamic; /* routes created by redirects */
|
||||||
|
short rts_newgateway; /* routes modified by redirects */
|
||||||
|
short rts_unreach; /* lookups which failed */
|
||||||
|
short rts_wildcard; /* lookups satisfied by a wildcard */
|
||||||
|
short rts_badrtgwroute; /* route to gateway is not direct */
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Structures for routing messages.
|
||||||
|
*/
|
||||||
|
struct rt_msghdr {
|
||||||
|
u_short rtm_msglen; /* to skip over non-understood messages */
|
||||||
|
u_char rtm_version; /* future binary compatibility */
|
||||||
|
u_char rtm_type; /* message type */
|
||||||
|
u_short rtm_index; /* index for associated ifp */
|
||||||
|
int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
|
||||||
|
int rtm_addrs; /* bitmask identifying sockaddrs in msg */
|
||||||
|
pid_t rtm_pid; /* identify sender */
|
||||||
|
int rtm_seq; /* for sender to identify action */
|
||||||
|
int rtm_errno; /* why failed */
|
||||||
|
int rtm_use; /* from rtentry */
|
||||||
|
u_int32_t rtm_inits; /* which metrics we are initializing */
|
||||||
|
struct rt_metrics rtm_rmx; /* metrics themselves */
|
||||||
|
};
|
||||||
|
|
||||||
|
struct rt_msghdr2 {
|
||||||
|
u_short rtm_msglen; /* to skip over non-understood messages */
|
||||||
|
u_char rtm_version; /* future binary compatibility */
|
||||||
|
u_char rtm_type; /* message type */
|
||||||
|
u_short rtm_index; /* index for associated ifp */
|
||||||
|
int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
|
||||||
|
int rtm_addrs; /* bitmask identifying sockaddrs in msg */
|
||||||
|
int32_t rtm_refcnt; /* reference count */
|
||||||
|
int rtm_parentflags; /* flags of the parent route */
|
||||||
|
int rtm_reserved; /* reserved field set to 0 */
|
||||||
|
int rtm_use; /* from rtentry */
|
||||||
|
u_int32_t rtm_inits; /* which metrics we are initializing */
|
||||||
|
struct rt_metrics rtm_rmx; /* metrics themselves */
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
#define RTM_VERSION 5 /* Up the ante and ignore older versions */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Message types.
|
||||||
|
*/
|
||||||
|
#define RTM_ADD 0x1 /* Add Route */
|
||||||
|
#define RTM_DELETE 0x2 /* Delete Route */
|
||||||
|
#define RTM_CHANGE 0x3 /* Change Metrics or flags */
|
||||||
|
#define RTM_GET 0x4 /* Report Metrics */
|
||||||
|
#define RTM_LOSING 0x5 /* RTM_LOSING is no longer generated by xnu
|
||||||
|
* and is deprecated */
|
||||||
|
#define RTM_REDIRECT 0x6 /* Told to use different route */
|
||||||
|
#define RTM_MISS 0x7 /* Lookup failed on this address */
|
||||||
|
#define RTM_LOCK 0x8 /* fix specified metrics */
|
||||||
|
#define RTM_OLDADD 0x9 /* caused by SIOCADDRT */
|
||||||
|
#define RTM_OLDDEL 0xa /* caused by SIOCDELRT */
|
||||||
|
#define RTM_RESOLVE 0xb /* req to resolve dst to LL addr */
|
||||||
|
#define RTM_NEWADDR 0xc /* address being added to iface */
|
||||||
|
#define RTM_DELADDR 0xd /* address being removed from iface */
|
||||||
|
#define RTM_IFINFO 0xe /* iface going up/down etc. */
|
||||||
|
#define RTM_NEWMADDR 0xf /* mcast group membership being added to if */
|
||||||
|
#define RTM_DELMADDR 0x10 /* mcast group membership being deleted */
|
||||||
|
#define RTM_IFINFO2 0x12 /* */
|
||||||
|
#define RTM_NEWMADDR2 0x13 /* */
|
||||||
|
#define RTM_GET2 0x14 /* */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Bitmask values for rtm_inits and rmx_locks.
|
||||||
|
*/
|
||||||
|
#define RTV_MTU 0x1 /* init or lock _mtu */
|
||||||
|
#define RTV_HOPCOUNT 0x2 /* init or lock _hopcount */
|
||||||
|
#define RTV_EXPIRE 0x4 /* init or lock _expire */
|
||||||
|
#define RTV_RPIPE 0x8 /* init or lock _recvpipe */
|
||||||
|
#define RTV_SPIPE 0x10 /* init or lock _sendpipe */
|
||||||
|
#define RTV_SSTHRESH 0x20 /* init or lock _ssthresh */
|
||||||
|
#define RTV_RTT 0x40 /* init or lock _rtt */
|
||||||
|
#define RTV_RTTVAR 0x80 /* init or lock _rttvar */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Bitmask values for rtm_addrs.
|
||||||
|
*/
|
||||||
|
#define RTA_DST 0x1 /* destination sockaddr present */
|
||||||
|
#define RTA_GATEWAY 0x2 /* gateway sockaddr present */
|
||||||
|
#define RTA_NETMASK 0x4 /* netmask sockaddr present */
|
||||||
|
#define RTA_GENMASK 0x8 /* cloning mask sockaddr present */
|
||||||
|
#define RTA_IFP 0x10 /* interface name sockaddr present */
|
||||||
|
#define RTA_IFA 0x20 /* interface addr sockaddr present */
|
||||||
|
#define RTA_AUTHOR 0x40 /* sockaddr for author of redirect */
|
||||||
|
#define RTA_BRD 0x80 /* for NEWADDR, broadcast or p-p dest addr */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Index offsets for sockaddr array for alternate internal encoding.
|
||||||
|
*/
|
||||||
|
#define RTAX_DST 0 /* destination sockaddr present */
|
||||||
|
#define RTAX_GATEWAY 1 /* gateway sockaddr present */
|
||||||
|
#define RTAX_NETMASK 2 /* netmask sockaddr present */
|
||||||
|
#define RTAX_GENMASK 3 /* cloning mask sockaddr present */
|
||||||
|
#define RTAX_IFP 4 /* interface name sockaddr present */
|
||||||
|
#define RTAX_IFA 5 /* interface addr sockaddr present */
|
||||||
|
#define RTAX_AUTHOR 6 /* sockaddr for author of redirect */
|
||||||
|
#define RTAX_BRD 7 /* for NEWADDR, broadcast or p-p dest addr */
|
||||||
|
#define RTAX_MAX 8 /* size of array to allocate */
|
||||||
|
|
||||||
|
struct rt_addrinfo {
|
||||||
|
int rti_addrs;
|
||||||
|
struct sockaddr *rti_info[RTAX_MAX];
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
#endif /* _NET_ROUTE_H_ */
|
||||||
|
|
@ -0,0 +1,119 @@
|
||||||
|
//
|
||||||
|
// RoutingTests.swift
|
||||||
|
// TunnelKitTests
|
||||||
|
//
|
||||||
|
// Created by Davide De Rosa on 4/30/19.
|
||||||
|
// Copyright (c) 2019 Davide De Rosa. All rights reserved.
|
||||||
|
//
|
||||||
|
// https://github.com/keeshux
|
||||||
|
//
|
||||||
|
// This file is part of TunnelKit.
|
||||||
|
//
|
||||||
|
// TunnelKit is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU General Public License as published by
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or
|
||||||
|
// (at your option) any later version.
|
||||||
|
//
|
||||||
|
// TunnelKit is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License for more details.
|
||||||
|
//
|
||||||
|
// You should have received a copy of the GNU General Public License
|
||||||
|
// along with TunnelKit. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
//
|
||||||
|
|
||||||
|
import XCTest
|
||||||
|
import __TunnelKitNative
|
||||||
|
|
||||||
|
class RoutingTests: XCTestCase {
|
||||||
|
|
||||||
|
override func setUp() {
|
||||||
|
// Put setup code here. This method is called before the invocation of each test method in the class.
|
||||||
|
}
|
||||||
|
|
||||||
|
override func tearDown() {
|
||||||
|
// Put teardown code here. This method is called after the invocation of each test method in the class.
|
||||||
|
}
|
||||||
|
|
||||||
|
func testEntryMatch4() {
|
||||||
|
let entry24 = RoutingTableEntry(iPv4Network: "192.168.1.0/24", gateway: nil, networkInterface: "en0")
|
||||||
|
print(entry24.networkMask()!)
|
||||||
|
for i in 0x0...0xff {
|
||||||
|
XCTAssertTrue(entry24.matchesDestination("192.168.1.\(i)"))
|
||||||
|
}
|
||||||
|
for i in 0x0...0xff {
|
||||||
|
XCTAssertFalse(entry24.matchesDestination("192.168.2.\(i)"))
|
||||||
|
}
|
||||||
|
|
||||||
|
let entry28 = RoutingTableEntry(iPv4Network: "192.168.1.0/28", gateway: nil, networkInterface: "en0")
|
||||||
|
print(entry28.networkMask()!)
|
||||||
|
for i in 0x0...0xf {
|
||||||
|
XCTAssertTrue(entry28.matchesDestination("192.168.1.\(i)"))
|
||||||
|
}
|
||||||
|
for i in 0x10...0x1f {
|
||||||
|
XCTAssertFalse(entry28.matchesDestination("192.168.1.\(i)"))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func testEntryMatch6() {
|
||||||
|
let entry24 = RoutingTableEntry(iPv6Network: "abcd:efef:1234::/46", gateway: nil, networkInterface: "en0")
|
||||||
|
for i in 0x0...0xf {
|
||||||
|
XCTAssertTrue(entry24.matchesDestination("abcd:efef:1234::\(i)"))
|
||||||
|
}
|
||||||
|
for i in 0x0...0xf {
|
||||||
|
XCTAssertFalse(entry24.matchesDestination("abcd:efef:1233::\(i)"))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func testFindGatewayLAN4() {
|
||||||
|
let table = RoutingTable()
|
||||||
|
|
||||||
|
for entry in table.ipv4() {
|
||||||
|
print(entry)
|
||||||
|
}
|
||||||
|
|
||||||
|
if let defaultGateway = table.defaultGateway4()?.gateway() {
|
||||||
|
print("Default gateway: \(defaultGateway)")
|
||||||
|
if let lan = table.broadestRoute4(matchingDestination: defaultGateway) {
|
||||||
|
print("Gateway LAN: \(lan.network())/\(lan.prefix())")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func testFindGatewayLAN6() {
|
||||||
|
let table = RoutingTable()
|
||||||
|
|
||||||
|
for entry in table.ipv6() {
|
||||||
|
print(entry)
|
||||||
|
}
|
||||||
|
|
||||||
|
if let defaultGateway = table.defaultGateway6()?.gateway() {
|
||||||
|
print("Default gateway: \(defaultGateway)")
|
||||||
|
if let lan = table.broadestRoute6(matchingDestination: defaultGateway) {
|
||||||
|
print("Gateway LAN: \(lan.network())/\(lan.prefix())")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func testPartitioning() {
|
||||||
|
let v4 = RoutingTableEntry(iPv4Network: "192.168.1.0/24", gateway: nil, networkInterface: "en0")
|
||||||
|
let v6 = RoutingTableEntry(iPv6Network: "abcd:efef:120::/46", gateway: nil, networkInterface: "en0")
|
||||||
|
|
||||||
|
let v4parts = v4.partitioned()
|
||||||
|
let v4parts1 = v4parts[0]
|
||||||
|
let v4parts2 = v4parts[1]
|
||||||
|
XCTAssertEqual(v4parts1.network(), "192.168.1.0")
|
||||||
|
XCTAssertEqual(v4parts1.prefix(), 25)
|
||||||
|
XCTAssertEqual(v4parts2.network(), "192.168.1.128")
|
||||||
|
XCTAssertEqual(v4parts2.prefix(), 25)
|
||||||
|
|
||||||
|
let v6parts = v6.partitioned()
|
||||||
|
let v6parts1 = v6parts[0]
|
||||||
|
let v6parts2 = v6parts[1]
|
||||||
|
XCTAssertEqual(v6parts1.network(), "abcd:efef:120::")
|
||||||
|
XCTAssertEqual(v6parts1.prefix(), 47)
|
||||||
|
XCTAssertEqual(v6parts2.network(), "abcd:efef:122::")
|
||||||
|
XCTAssertEqual(v6parts2.prefix(), 47)
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue