49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
/* -*- P4_16 -*- */
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#ifndef CHECKSUMS_P4
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#define CHECKSUMS_P4
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#include <core.p4>
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#include <v1model.p4>
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#include "headers.p4"
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/*************************************************************************
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************* C H E C K S U M V E R I F I C A T I O N *************
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*************************************************************************/
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control MyVerifyChecksum(inout headers hdr, inout metadata meta) {
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apply {}
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}
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/*************************************************************************
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************** C H E C K S U M C O M P U T A T I O N **************
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*************************************************************************/
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control MyComputeChecksum(inout headers hdr, inout metadata meta) {
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apply {
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if(meta.calc_icmp6_checksum) {
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hdr.icmp6.checksum = 42; /* must be correct */
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}
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verify_checksum_with_payload<T, O>(in bool condition, in T data, inout O checksum, HashAlgorithm algo);
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// GRRRRR bit<32> icmp6_len = 32; /* for icmp6 NS */
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// GRRRRR update_checksum (
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// GRRRRR hdr.icmp6.isValid(),
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// GRRRRR {
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// GRRRRR hdr.ipv6.src_addr, /* 128 */
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// GRRRRR hdr.ipv6.dst_addr, /* 128 */
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// GRRRRR icmp6_len, /* 32 */
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// GRRRRR 24w0, /* 24 0's */
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// GRRRRR PROTO_ICMP6 /* 8 */
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// GRRRRR },
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// GRRRRR hdr.icmp6.checksum,
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// GRRRRR HashAlgorithm.csum16
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// GRRRRR );
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}
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}
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#endif
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