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main.m
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//
// main.m
// v2rayx_sysconf
//
// Copyright © 2016年 Cenmrev. All rights reserved.
//
#import <Foundation/Foundation.h>
#import <SystemConfiguration/SystemConfiguration.h>
#import <sys/signal.h>
#import <Tun2socks/Tun2socks.h>
#import "sysconf_version.h"
#import "tun.h"
#import "route.h"
#define INFO "v2rayx_sysconf\n the helper tool for V2RayX, modified from clowwindy's shadowsocks_sysconf.\nusage: v2rayx_sysconf [options]\noff\t turn off proxy\nauto\t auto proxy change\nglobal port \t global proxy at the specified port number\n"
//@interface AppDelegate : NSObject<NSXPCListenerDelegate> {}
//@end
//
//@implementation AppDelegate
//-(BOOL) listener:(NSXPCListener *)listener shouldAcceptNewConnection:(NSXPCConnection *)newConnection {
// if (newConnection != NULL) {
// [newConnection resume];
// }
//
// return true;
//}
//
//@end
BOOL runLoopMark = YES;
NSString* defaultRouteGateway;
SYSRouteHelper* routeHelper;
NSString* tunAddr = @"10.0.0.0";
NSString* tunWg = @"10.0.0.1";
NSString* tunMask = @"255.255.255.0";
NSString* tunDns = @"8.8.8.8,8.8.4.4,1.1.1.1";
NSString* proxyServer;
NSString* exampleServer = @"93.184.216.34"; // example.com ip use to identify records
NSString *runtimeMode = @"";
// helper perform the cleanup task.
void cleanupHandle(int signal_ns) {
// printf("app kill signal %d\n", signal_ns);
if ([runtimeMode isEqualToString: @"tun"]) {
// Restore the default route
if (![defaultRouteGateway isEqualToString:@""] && routeHelper != NULL) {
[routeHelper routeDelete:@"default" gateway:tunWg];
[routeHelper routeAdd:@"default" gateway:defaultRouteGateway];
[routeHelper routeDelete:proxyServer gateway:defaultRouteGateway];
printf("reset DefaultRouteGateway %s\n", [defaultRouteGateway UTF8String]);
}
}
runLoopMark = NO;
}
int main(int argc, const char * argv[])
{
// prepare for XPC communication
// AppDelegate* appDelegate = [AppDelegate init];
// NSXPCListener* xpcListener = [NSXPCListener serviceListener];
// xpcListener.delegate = appDelegate;
// Initialize the routing controller
routeHelper = [[SYSRouteHelper alloc] init];
// app kill signal
signal(SIGKILL, cleanupHandle);
signal(SIGABRT, cleanupHandle);
signal(SIGINT, cleanupHandle);
if (argc < 2 || argc >4) {
printf(INFO);
return 1;
}
@autoreleasepool {
NSString *mode = [NSString stringWithUTF8String:argv[1]];
NSSet *support_args = [NSSet setWithObjects:@"off", @"auto", @"global", @"save", @"restore", @"tun", @"-v", nil];
if (![support_args containsObject:mode]) {
printf(INFO);
return 1;
}
runtimeMode = mode;
if ([mode isEqualToString:@"-v"]) {
printf("%s", [VERSION UTF8String]);
return 0;
}
if ([mode isEqualToString:@"tun"]) {
proxyServer = exampleServer; // Just avoid empty abnormalities
if (argv[2] != NULL) {
NSString* server = [NSString stringWithUTF8String:argv[2]];
if (server != NULL) {
proxyServer = server;
}
}
int localProxyPort = 0;
if (sscanf (argv[3], "%i", &localProxyPort) != 1 || localProxyPort > 65535 || localProxyPort < 0) {
printf("error - not a valid port number\n");
return 0;
}
NSString* socks5ProxyLink = [[NSString alloc] initWithFormat: @"socks5://127.0.0.1:%i", localProxyPort];
// The native way of creating TUN is deprecated
// int fd = createTUN();
// printf("tun fd is %d\n", fd);
NSError* err;
Tun2socksTun2socksCtl* ctl = Tun2socksCreateTunConnect(tunAddr, tunWg, tunMask, tunDns, socks5ProxyLink, true, &err);
if (err != NULL) {
NSLog(@"Tun2socksConnect error: %@\n", err);
return 0;
}
if (ctl != NULL && ctl.tunName != NULL) {
// NSLog(@"tun fd is %@\n", ctl.tunName);
// Process route
NSString* systemRouteBackupFilePath = [NSString stringWithFormat:@"%@/Library/Application Support/V2RayXS/system_route_backup.plist", NSHomeDirectory()];
NSMutableDictionary* systemRouteBackup = [NSMutableDictionary dictionaryWithContentsOfURL:[NSURL fileURLWithPath: systemRouteBackupFilePath]];
NSString* DEFAULT_ROUTE_GATEWAY = @"DefaultRouteGateway";
if (systemRouteBackup == NULL) {
systemRouteBackup = [[NSMutableDictionary alloc] init];
}
if (![systemRouteBackup objectForKey:DEFAULT_ROUTE_GATEWAY]) {
[systemRouteBackup setValue:@"" forKey:DEFAULT_ROUTE_GATEWAY];
}
NSString* defGateway = [routeHelper getDefaultRouteGateway];
NSString* fixGateway = systemRouteBackup[DEFAULT_ROUTE_GATEWAY];
// NSString* fixGateway = [routeHelper getRouteGateway: exampleServer];
// printf("defGateway %s\n", [defGateway UTF8String]);
// printf("fixGateway %s\n", [fixGateway UTF8String]);
if ([defGateway isEqualToString:@""] && ![fixGateway isEqualToString:@""]) {
defGateway = fixGateway;
}
if(![defGateway isEqualToString:@""] && ([fixGateway isEqualToString:@""] || ![defGateway isEqualToString:fixGateway])) {
fixGateway = defGateway;
[systemRouteBackup setValue:fixGateway forKey:DEFAULT_ROUTE_GATEWAY];
[systemRouteBackup writeToURL:[NSURL fileURLWithPath: systemRouteBackupFilePath] atomically:NO];
}
// if(![defGateway isEqualToString:@""] && [fixGateway isEqualToString:@""]) {
// printf("add fix defGateway %s\n", [defGateway UTF8String]);
// [routeHelper routeAdd:exampleServer gateway:defGateway];
// }
// if (![defGateway isEqualToString:@""] && ![defGateway isEqualToString:fixGateway]) {
// [routeHelper routeDelete:exampleServer gateway:defGateway];
// [routeHelper routeAdd:exampleServer gateway:defGateway];
// }
defaultRouteGateway = defGateway;
[routeHelper upInterface: ctl.tunName]; // up tun Interface
if (![defaultRouteGateway isEqualToString:@""]) {
[routeHelper routeDelete:@"default" gateway:defaultRouteGateway];
[routeHelper routeAdd:proxyServer gateway:defaultRouteGateway];
}
[routeHelper routeAdd:@"default" gateway:tunWg];
}
// run loop
CFRunLoopSourceContext context = {0};
CFRunLoopSourceRef source = CFRunLoopSourceCreate(kCFAllocatorDefault, 0, &context);
CFRunLoopAddSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
CFRelease(source);
while (runLoopMark) {
SInt32 result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1.0e10, true);
if (result == kCFRunLoopRunFinished) {
runLoopMark = NO;
}
}
cleanupHandle(SIGABRT);
return 0;
}
static AuthorizationRef authRef;
static AuthorizationFlags authFlags;
authFlags = kAuthorizationFlagDefaults
| kAuthorizationFlagExtendRights
| kAuthorizationFlagInteractionAllowed
| kAuthorizationFlagPreAuthorize;
OSStatus authErr = AuthorizationCreate(nil, kAuthorizationEmptyEnvironment, authFlags, &authRef);
if (authErr != noErr) {
authRef = nil;
} else {
if (authRef == NULL) {
NSLog(@"No authorization has been granted to modify network configuration");
return 1;
}
SCPreferencesRef prefRef = SCPreferencesCreateWithAuthorization(nil, CFSTR("V2RayXS"), nil, authRef);
NSDictionary *sets = (__bridge NSDictionary *)SCPreferencesGetValue(prefRef, kSCPrefNetworkServices);
NSDictionary* originalSets;
if ([mode isEqualToString:@"save"]) {
[sets writeToURL:[NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/Library/Application Support/V2RayXS/system_proxy_backup.plist",NSHomeDirectory()]] atomically:NO];
return 0;
}
// 遍历系统中的网络设备列表，设置 AirPort 和 Ethernet 的代理
if([mode isEqualToString:@"restore"]) {
originalSets = [NSDictionary dictionaryWithContentsOfURL:[NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/Library/Application Support/V2RayXS/system_proxy_backup.plist",NSHomeDirectory()]]];
}
for (NSString *key in [sets allKeys]) {
NSMutableDictionary *dict = [sets objectForKey:key];
NSString *hardware = [dict valueForKeyPath:@"Interface.Hardware"];
// NSLog(@"%@", hardware);
if ([hardware isEqualToString:@"AirPort"] || [hardware isEqualToString:@"Wi-Fi"] || [hardware isEqualToString:@"Ethernet"]) {
NSMutableDictionary *proxies = [sets[key][@"Proxies"] mutableCopy];
[proxies setObject:[NSNumber numberWithInt:0] forKey:(NSString *)kCFNetworkProxiesHTTPEnable];
[proxies setObject:[NSNumber numberWithInt:0] forKey:(NSString *)kCFNetworkProxiesHTTPSEnable];
[proxies setObject:[NSNumber numberWithInt:0] forKey:(NSString *)kCFNetworkProxiesProxyAutoConfigEnable];
[proxies setObject:[NSNumber numberWithInt:0] forKey:(NSString *)kCFNetworkProxiesSOCKSEnable];
if ([mode isEqualToString:@"restore"]) {
if ([originalSets objectForKey:key]){
proxies = originalSets[key][@"Proxies"];
}
}
if ([mode isEqualToString:@"auto"]) {
[proxies setObject:@"http://127.0.0.1:8070/proxy.pac" forKey:(NSString *)kCFNetworkProxiesProxyAutoConfigURLString];
[proxies setObject:[NSNumber numberWithInt:1] forKey:(NSString *)kCFNetworkProxiesProxyAutoConfigEnable];
} else if ([mode isEqualToString:@"global"]) {
int localPort = 0;
int httpPort = 0;
if (sscanf (argv[2], "%i", &localPort)!=1 || localPort > 65535 || localPort < 0) {
printf ("error - not a valid port number");
return 1;
}
if (sscanf (argv[3], "%i", &httpPort)!=1 || httpPort > 65535 || httpPort < 0) {
printf ("error - not a valid port number");
return 1;
}
NSLog(@"in helper %d %d", localPort, httpPort);
if (localPort > 0) {
[proxies setObject:@"127.0.0.1" forKey:(NSString *)
kCFNetworkProxiesSOCKSProxy];
[proxies setObject:[NSNumber numberWithInt:localPort] forKey:(NSString*)
kCFNetworkProxiesSOCKSPort];
[proxies setObject:[NSNumber numberWithInt:1] forKey:(NSString*)
kCFNetworkProxiesSOCKSEnable];
}
if (httpPort > 0) {
[proxies setObject:@"127.0.0.1" forKey:(NSString *)
kCFNetworkProxiesHTTPProxy];
[proxies setObject:@"127.0.0.1" forKey:(NSString *)
kCFNetworkProxiesHTTPSProxy];
[proxies setObject:[NSNumber numberWithInt:httpPort] forKey:(NSString*)
kCFNetworkProxiesHTTPPort];
[proxies setObject:[NSNumber numberWithInt:httpPort] forKey:(NSString*)
kCFNetworkProxiesHTTPSPort];
[proxies setObject:[NSNumber numberWithInt:1] forKey:(NSString*)
kCFNetworkProxiesHTTPEnable];
[proxies setObject:[NSNumber numberWithInt:1] forKey:(NSString*)
kCFNetworkProxiesHTTPSEnable];
}
}
SCPreferencesPathSetValue(prefRef, (__bridge CFStringRef)[NSString stringWithFormat:@"/%@/%@/%@", kSCPrefNetworkServices, key, kSCEntNetProxies], (__bridge CFDictionaryRef)proxies);
}
}
SCPreferencesCommitChanges(prefRef);
SCPreferencesApplyChanges(prefRef);
SCPreferencesSynchronize(prefRef);
}
printf("proxy set to %s\n", [mode UTF8String]);
}
return 0;
}