Re: nft: parser problem, can use mark as datatype in sets and maps

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On 08/10/2015 07:09 PM, Pablo Neira Ayuso wrote:
On Mon, Aug 10, 2015 at 03:48:12PM +0200, Andreas Schultz wrote:
Hi,

The data type definition for mark and the general idea of the parser
indicate that the following nft statements should work:

   # nft add map filter MAP1 { type ipv4_addr : mark\; }
   # nft add set filter SET1 { type mark\; }

However, both fail with a similar error message:

   <cmdline>:1:40-43: Error: syntax error, unexpected mark, expecting string
   add map filter MAP1 { type ipv4_addr : mark; }
   <cmdline>:1:28-31: Error: syntax error, unexpected mark, expecting string
   add set filter SET1 { type mark; }

The problem is parser, it expects a string as data type spec, but
mark is already declared as a token.

I don't have much experience with bison, so does anyone have a quick
work-around for this?

This is fixed by 2baf59c ("parser_bison: allow to use mark as datatype
for maps and sets").

Ah, I was using the next-4.2 branch and missed this fix in master, sorry for the noise.

However, the parser problem is solved, but named mark maps are still
not working:

anonymous maps work as expected:

# nft add rule ip mangle OUTPUT mark set ip saddr map { 192.168.0.10 : 0x1 }

named maps do not:

  # nft add map mangle CLASS05 "{ type ipv4_addr : mark; }"
  # nft add element mangle CLASS05 { 192.168.0.10 : 0x1 }
  # nft add rule ip mangle OUTPUT mark set ip saddr map @CLASS05
  <cmdline>:1:1-56: Error: Could not process rule: Invalid argument

Any idea?

Andreas
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