master-thesis/p4src/checksums.p4
Nico Schottelius 8832069536 +-comment
2019-03-05 22:32:31 +01:00

48 lines
1.5 KiB
Text

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