INetworkPacketParser

INetworkPacketParser

INetworkPacketParser is a lightweight object-oriented TCP/IP protocol stack parsing tool.

Introduction

INetworkPacketParser is a lightweight object-oriented TCP/IP protocol stack parsing tool.

Data packet analysis (Wire data is parsed into OC objects)

Supports converting binary data transmitted over the network into OC objects`

• Network layer protocol analysis: supports IP Packet data packet analysis
• Transport layer protocol analysis: supports TCP/UDP/ICMP data segment analysis
• Application layer protocol analysis: DNS message analysis (including request and response messages)

Data packet construction (OC object converted into Wire Data)

Supports modifying OC object attributes and converting them into binary data that can be directly transmitted over the network

• Network layer protocol structure: Supports IP Packet message construction and tampering
• Transport layer protocol structure: supports TCP/UDP data segment construction and tampering
• Application layer protocol structure: not supported yet

Update plan

• IP packet analysis and construction
• TCP/UDP data segment analysis
• DNS message parsing
• TCP/UDP data segment structure
• DNS request message structure
• DNS response message structure
• Other application layer message support

rely

System version

• iOS ~> 9.0
• MacOS ~> 10.0

library dependencies

• System library: resolv.lib (automatically installed by CocoaPods)

Install

Support cocoapods installation

 pod 'INetworkPacketParser' 

Example

 - (void)test {
	// 网络二进制报文
	NSString *hex = @"4500003c 734f0000 ff114f69 0a0a0a0a 72727272 cd240035 00284c24 63780100 00010000 00000000 03777777 0669636c 6f756403 636f6d00 00010001";
	NSData *rawData = [self dataFromHexString:hex];
	
	// IP数据包解析
	IPPacket *packet = [[IPPacket alloc] initWithRawData:rawData];
	if (packet.header.transportProtocol == UDP) {
        // UDP解析
        IPUDPSegment *udpSegment = [[IPUDPSegment alloc] initWithRawData:packet.payload];
        if (udpSegment.header.destPort == 53) {
            // DNS解析
            IPDNSMessage *dnsMessage = [[IPDNSMessage alloc] initWithRawData:udpSegment.payload];
            dnsMessage.dnsHeader;
            dnsMessage.dnsQuery;
            dnsMessage.dnsAnswers;
        }
    }else if (packet.header.transportProtocol == TCP) {
        // TCP解析
        IPTCPSegment *tcpSegment = [[IPTCPSegment alloc] initWithRawData:packet.payload];
    }
	
}

Author

smallyou, [email protected]

Github: smallyou | Jianshu: January 23