[Bug 1734] New: nft set with auto-merge json import/export

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1734

            Bug ID: 1734
           Summary: nft set with auto-merge json import/export
           Product: nftables
           Version: 1.0.x
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P5
         Component: nft
          Assignee: pablo at netfilter.org
          Reporter: apex at xepa.nl

Hi there,

I would like to report a bug with the nft ecosystem pertaining to the
auto-merge setting during the export / import in the JSON format for a set.

Example:
# nft 'add set inet filter myset { type ipv4_addr; flags interval; auto-merge
}'
# nft 'list set inet filter myset'
table inet filter {
    set myset {
        type ipv4_addr
        flags interval
        auto-merge
    }
}
# nft --json 'list set inet filter myset' | jq '.nftables[1]'
{
  "set": {
    "family": "inet",
    "name": "myset",
    "table": "filter",
    "type": "ipv4_addr",
    "handle": 2,
    "flags": [
      "interval"
    ]
  }
}

// export all in json format
# nft --json 'list set inet filter myset' > ./myset.json
// delete myset
# nft 'delete set inet filter myset'
// show it
# nft 'list set inet filter myset'
Error: No such file or directory
list set inet filter myset
// import set again
#  nft --json --file ./myset.json
// list set again
# nft 'list set inet filter myset'
table inet filter {
    set myset {
        type ipv4_addr
        flags interval
        elements = { 192.168.0.0/24 }
    }
}

Notice that the auto-merge setting is gone.

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