[nftables] frame logging with vmap?

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How to log frames that been processed as part of a vmap?


map foo {
  type icmpv6_type . icmpv6_code : verdict
  elements = {
    1 . 0 : accept,
    1 . 1 : accept,
    1 . 2 : accept,
    1 . 3 : accept,
    1 . 4 : accept,
    1 . 5 : accept,
    1 . 6 : accept,
    1 . 7 : accept,
    1 . 8 : accept,
    2 . 0 : accept,
    3 . 0 : accept,
    3 . 1 : accept,
    4 . 0 : accept,
    4 . 1 : accept,
    4 . 2 : accept,
    128 . 0 : accept,
  }
}


putting the log statement after the vmap, e.g.:

icmpv6 type . icmpv6 code vmap @foo log flags all prefix "bar: ";


 does not produce any logging, supposedly since the verdict being terminal and processed prior the log statement. Putting it before the rule however:

log flags all prefix "bar: "icmpv6 type . icmpv6 code vmap @foo;

logs frames out of context of this rule, it logs everything frame that is processed in the chain prior the vmap statement is processed, e.g.:

FW bar: IN=br-lan OUT=pppoe-wan MACSRC=b0:10:41:ba:be:5f MACDST=d8:58:d7:00:79:7a MACPROTO=0800 SRC=192.168.84.205 DST=xxx.xxx.59.84 LEN=28 TOS=0x00 PREC=0x00 TTL=4 ID=25008 DF PROTO=UDP SPT=61905 DPT=36653 LEN=8








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