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Automation Advisor
Syzkaller
prog
composePseudoCsumIPv6

How to use composePseudoCsumIPv6 method of prog Package

Best Syzkaller code snippet using prog.composePseudoCsumIPv6

checksum.go

Source:checksum.go

...86		var info CsumInfo87		if ipSrcAddr.Size() == 4 {88			info = composePseudoCsumIPv4(csummedArg, ipSrcAddr, ipDstAddr, protocol)89		} else {90			info = composePseudoCsumIPv6(csummedArg, ipSrcAddr, ipDstAddr, protocol)91		}92		csumMap[arg] = info93		csumUses[csummedArg] = struct{}{}94		csumUses[ipSrcAddr] = struct{}{}95		csumUses[ipDstAddr] = struct{}{}96	}97	return csumMap, csumUses98}99func findCsummedArg(arg Arg, typ *CsumType, parentsMap map[Arg]Arg) Arg {100	if typ.Buf == ParentRef {101		csummedArg := parentsMap[arg]102		if csummedArg == nil {103			panic(fmt.Sprintf("%q for %q is not in parents map", ParentRef, typ.Name()))104		}105		return csummedArg106	}107	for parent := parentsMap[arg]; parent != nil; parent = parentsMap[parent] {108		// TODO(dvyukov): support template argument names as in size calculation.109		if typ.Buf == parent.Type().Name() {110			return parent111		}112	}113	panic(fmt.Sprintf("csum field %q references non existent field %q", typ.Name(), typ.Buf))114}115func composePseudoCsumIPv4(tcpPacket, srcAddr, dstAddr Arg, protocol uint8) CsumInfo {116	info := CsumInfo{Kind: CsumInet}117	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkArg, srcAddr, 0, 0})118	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkArg, dstAddr, 0, 0})119	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkConst, nil, uint64(swap16(uint16(protocol))), 2})120	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkConst, nil, uint64(swap16(uint16(tcpPacket.Size()))), 2})121	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkArg, tcpPacket, 0, 0})122	return info123}124func composePseudoCsumIPv6(tcpPacket, srcAddr, dstAddr Arg, protocol uint8) CsumInfo {125	info := CsumInfo{Kind: CsumInet}126	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkArg, srcAddr, 0, 0})127	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkArg, dstAddr, 0, 0})128	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkConst, nil, uint64(swap32(uint32(tcpPacket.Size()))), 4})129	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkConst, nil, uint64(swap32(uint32(protocol))), 4})130	info.Chunks = append(info.Chunks, CsumChunk{CsumChunkArg, tcpPacket, 0, 0})131	return info132}133func extractHeaderParams(arg *GroupArg, size uint64) (Arg, Arg) {134	srcAddr := getFieldByName(arg, "src_ip")135	dstAddr := getFieldByName(arg, "dst_ip")136	if srcAddr.Size() != size || dstAddr.Size() != size {137		panic(fmt.Sprintf("src/dst_ip fields in %v must be %v bytes", arg.Type().Name(), size))138	}...

composePseudoCsumIPv6

Using AI Code Generation

1import (2func main() {3    eth.SrcMAC = net.HardwareAddr{0x00, 0x11, 0x22, 0x33, 0x44, 0x55}4    eth.DstMAC = net.HardwareAddr{0x55, 0x44, 0x33, 0x22, 0x11, 0x00}5    ip6.SrcIP = net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348")6    ip6.DstIP = net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7349")7    tcp.SrcPort = layers.TCPPort(1234)8    tcp.DstPort = layers.TCPPort(80)9    payload = gopacket.Payload([]byte("Hello, World!"))10    buffer = gopacket.NewSerializeBuffer()11    gopacket.SerializeLayers(buffer, gopacket.SerializeOptions{},12    out := buffer.Bytes()13    packet := gopacket.NewPacket(out, layers.LayerTypeEthernet, gopacket.Default)14    tcpLayer := packet.Layer(layers.LayerTypeTCP)15    if tcpLayer == nil {16        fmt.Println("

composePseudoCsumIPv6

Using AI Code Generation

1import (2func main() {3	fd, err := syscall.Socket(syscall.AF_INET, syscall.SOCK_RAW, syscall.IPPROTO_TCP)4	if err != nil {5		fmt.Println("Error in creating socket")6	}

composePseudoCsumIPv6

Using AI Code Generation

1import (2func main() {3	ip6 := layers.IPv6{}4	ip6.SrcIP = net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348")5	ip6.DstIP = net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7349")6	tcp := layers.TCP{}7	pseudo := layers.PseudoHeader{}8	pseudo.TCPLength = uint16(tcp.Len())9	checksum := layers.IPv6Checksum([]byte(tcp.LayerContents()), pseudo)10	fmt.Printf("Checksum: %d", checksum)11}12import (13func main() {14	ip4 := layers.IPv4{}15	ip4.SrcIP = net.ParseIP("

composePseudoCsumIPv6

Using AI Code Generation

1import (2func main() {3    var srcIP net.IP = net.ParseIP("2001:db8:85a3::8a2e:370:7334")4    var dstIP net.IP = net.ParseIP("2001:db8:85a3::8a2e:370:7335")5    var pseudoCsum uint32 = prog.ComposePseudoCsumIPv6(srcIP, dstIP, proto, length)6    fmt.Printf("Pseudo checksum for IPv6 is %v", pseudoCsum)7}8func ComposePseudoCsumIPv6(srcIP net.IP, dstIP net.IP, proto uint8, length uint32) uint329func ComposePseudoCsumIPv6(srcIP net.IP, dstIP net.IP, proto uint8, length uint32) uint3210func ComposePseudoCsumIPv6(srcIP net.IP, dstIP net.IP, proto uint8, length uint32) uint3211func ComposePseudoCsumIPv6(srcIP net.IP, dstIP net.IP, proto uint8, length uint32) uint3212func ComposePseudoCsumIPv6(srcIP net.IP, dstIP net.IP, proto uint8, length uint32) uint3213ComposePseudoCsumIPv6() function takes

composePseudoCsumIPv6

Using AI Code Generation

1import (2func main() {3    prog := bcc.NewModule(`4    int composePseudoCsumIPv6(struct __sk_buff *skb) {5        u16 csum = bpf_csum_diff(0, 0, 0, 0, 0);6        u32 saddr = 0x2001db8::1;7        u32 daddr = 0x2001db8::2;8        u32 length = 0x28;9        u8 nextHdr = 0x11;10        u16 zero = 0;11        csum = bpf_csum_diff(&saddr, 0, 0, 0, csum);12        csum = bpf_csum_diff(&daddr, 0, 0, 0, csum);13        csum = bpf_csum_diff(&zero, 0, 0, 0, csum);14        csum = bpf_csum_diff(&nextHdr, 0, 0, 0, csum);15        csum = bpf_csum_diff(&length, 0, 0, 0, csum);16        return csum;17    }18    `, []string{})19    if prog == nil {

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