[Bug 1262] New: nft insert rule ignores space in prefix value

bugzilla-daemon at netfilter.org bugzilla-daemon at netfilter.org
Mon Jun 18 13:11:53 CEST 2018


            Bug ID: 1262
           Summary: nft insert rule ignores space in prefix value
           Product: nftables
           Version: unspecified
          Hardware: x86_64
                OS: Gentoo
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: nft
          Assignee: pablo at netfilter.org
          Reporter: ikonta at yandex.ru

My kernel is:
Linux tux 4.9.95-gentoo #2 SMP Fri May 25 11:35:57 MSK 2018 x86_64 AMD
Athlon(tm) II X2 250 Processor AuthenticAMD GNU/Linux

I use standard log target to monitor dropped packages.

When I add/modify ruleset creating table, i.e.:
tux ~ # /sbin/nft delete table filter
tux ~ # /sbin/nft -f fw.me 

fw.me file has the following contents:
table ip filter {
     chain input {
          type filter hook input priority 0;

          # accept traffic originated from us
          ct state established,related accept

          # accept any localhost traffic
          iif lo accept

          # log and drop any other traffic
      log prefix "nftables " drop

everything is as expected, I see the following strings in dmesg:

[15648.869932] nftables IN=lan0 OUT= MAC=…

But when I refresh ruleset without recreation filter table, with the following

/sbin/nft flush table filter
/sbin/nft insert rule filter input log prefix "nftables " drop
# other filtering rules

I see space in log prefix vaule is ingored.
dmesg shows the following strings:
[15783.270898] nftablesIN=lan0 OUT= MAC=…

P.S. Utility version:
# equery b /sbin/nft 
 * Searching for /sbin/nft ... 
net-firewall/nftables-0.8-r3 (/sbin/nft)

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