Date: Fri, 15 Feb 2019 09:02:51 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 235754] pfctl: Lower limit for -T replace than -T add Message-ID: <bug-235754-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235754 Bug ID: 235754 Summary: pfctl: Lower limit for -T replace than -T add Product: Base System Version: 12.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: solarcatcher@gmx.de I use a cron job to update a table of badhosts, following the approach shown here https://www.geoghegan.ca/pfbadhost.html. On FreeBSD 11 the nightly replace works fine. On FreeBSD 12.0-RELEASE-p3 (and on the latest HardenedBSD 12-STABLE) update= of the pf table fails with the following message "pfctl: Invalid argument." On further inspection, pfctl does not anymore allow to replace a table with more than 32768 (2^15) IP addresses. Flushing and adding works fine, just replacing leads to the error. How to reproduce Download list of 32769 badhosts to /tmp/pf-badhost.txt: https://gist.github.com/utrenkner/617534545407587a8919dc6b47676f6e Add this line to pf.conf: table <pfbadhost> persist file "/tmp/pf-badhost.txt" Load new rules: pfctl -f /etc/pf.conf Verify that table <pfbadhost> has 32769 entries: pfctl -t pfbadhost -T show | wc -l Now, try to replace table: pfctl -t pfbadhost -T replace -f /tmp/pf-badhost.txt This will fail. Remove one IP address from /tmp/pf-badhost.txt and try replacing table again: pfctl -t pfbadhost -T replace -f /tmp/pf-badhost.txt Result: "1 addresses deleted." I can -T flush and -T add, but it seems a bug to me that -T replace does not work with the same number of IP addresses. --=20 You are receiving this mail because: You are the assignee for the bug.=
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