VPN over Shadowsocks, three providers added, still unstable (testing, not for production)

client/platforms/ios/sspacket.m

@@ -0,0 +1,57 @@
+#import <sspacket.h>
+
+#include <arpa/inet.h>
+
+@interface SSPacket () {
+    NSData *_data;
+    NSNumber *_protocolFamily;
+}
+@end
+
+@implementation SSPacket
+
+- (instancetype)initWithSSData:(NSData *)data {
+    if (self = [super init]) {
+//        NSUInteger prefix_size = sizeof(uint32_t);
+//        uint32_t protocol = PF_UNSPEC;
+//        [data getBytes:&protocol length:prefix_size];
+//        protocol = CFSwapInt32HostToBig(protocol);
+//
+//        NSRange range = NSMakeRange(prefix_size, data.length - prefix_size);
+//        NSData *packetData = [data subdataWithRange:range];
+        
+//        _data = packetData;
+//        _protocolFamily = @(protocol);
+        _data = data;
+        _protocolFamily = @(PF_INET);
+    }
+    return self;
+}
+
+- (instancetype)initWithPacketFlowData:(NSData *)data protocolFamily:(NSNumber *)protocolFamily {
+    if (self = [super init]) {
+        _data = data;
+        _protocolFamily = protocolFamily;
+    }
+    return self;
+}
+
+- (NSData *)vpnData {
+//    uint32_t prefix = CFSwapInt32HostToBig(_protocolFamily.unsignedIntegerValue);
+//    NSUInteger prefix_size = sizeof(uint32_t);
+//    NSMutableData *data = [NSMutableData dataWithCapacity:prefix_size + _data.length];
+//
+//    [data appendBytes:&prefix length:prefix_size];
+//    [data appendData:_data];
+    return _data;
+}
+
+- (NSData *)ssPacketFlowData {
+    return _data;
+}
+
+- (NSNumber *)protocolFamily {
+    return _protocolFamily;
+}
+
+@end