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[prototyping] Parser metadata handling #6

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chkim4142 opened this issue Oct 19, 2015 · 1 comment
Closed

[prototyping] Parser metadata handling #6

chkim4142 opened this issue Oct 19, 2015 · 1 comment
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enhancement
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p4-v1.1

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@chkim4142
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This will enable TLV-style header parsing.

  • Use a metadata instance to keep track of # of bytes extracted or to extract
  • Allow arbitrary expressions in set_metadata() source argument. This way, one can modify the value of a metadata during parsing.

Code example:
ipv4_options_parser_setmetadata.pdf
@chkim4142 chkim4142 added this to the P4-v1.1 milestone Oct 19, 2015
@chkim4142 chkim4142 changed the title parser metadata prototyping [prototyping] parser metadata handling Oct 19, 2015
@chkim4142 chkim4142 changed the title [prototyping] parser metadata handling [prototyping] Parser metadata handling Oct 20, 2015
@chkim4142
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This is done in P4_14 v1.1.

@chkim4142 chkim4142 reopened this Aug 30, 2016
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