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Bug 1630876

Summary: TestOnly: nft fails to flush maps and sets: Invalid argument
Product: Red Hat Enterprise Linux 7 Reporter: Tomas Dolezal <todoleza>
Component: nftablesAssignee: Phil Sutter <psutter>
Status: CLOSED ERRATA QA Contact: Tomas Dolezal <todoleza>
Severity: high Docs Contact:
Priority: high    
Version: 7.6CC: jmaxwell
Target Milestone: rcKeywords: TestOnly
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-08-06 13:06:14 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1654714    

Description Tomas Dolezal 2018-09-19 13:25:59 UTC
Description of problem:
flushing a map is not possible:
Error: Could not process rule: Invalid argument

Version-Release number of selected component (if applicable):
nftables-0.8-10.el7.x86_64

How reproducible:
always

Steps to Reproduce:
set -x
nft add table mytable
nft add table ip6 mytable6

nft add map ip mytable mymap4 { type inet_proto : mark \; }
nft add map ip6 mytable6 mymap6 { type inet_proto : mark \; }

nft list map ip mytable mymap4
nft list map ip6 mytable6 mymap6
nft flush map ip mytable mymap4
nft flush map ip6 mytable6 mymap6
nft delete map ip mytable mymap4
nft delete map ip6 mytable6 mymap6

Actual results:
+ nft add table mytable
+ nft add table ip6 mytable6
+ nft add map ip mytable mymap4 '{' type inet_proto : mark ';' '}'
+ nft add map ip6 mytable6 mymap6 '{' type inet_proto : mark ';' '}'
+ nft list map ip mytable mymap4
table ip mytable {
	map mymap4 {
		type inet_proto : mark
	}
}
+ nft list map ip6 mytable6 mymap6
table ip6 mytable6 {
	map mymap6 {
		type inet_proto : mark
	}
}
+ nft flush map ip mytable mymap4
Error: Could not process rule: Invalid argument
flush map ip mytable mymap4
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ nft flush map ip6 mytable6 mymap6
Error: Could not process rule: Invalid argument
flush map ip6 mytable6 mymap6
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ nft delete map ip mytable mymap4
+ nft delete map ip6 mytable6 mymap6

Expected results:


Additional info:

Comment 1 Tomas Dolezal 2018-09-19 13:44:54 UTC
The same error also applies to SETS

# nft list set mytable myset
table ip mytable {
	set myset {
		type inet_service
		elements = { 63, bootpc, tftp, snpp }
	}
}

# nft flush set mytable myset
Error: Could not process rule: Invalid argument
flush set mytable myset
^^^^^^^^^^^^^^^^^^^^^^^^

Comment 3 Phil Sutter 2018-11-20 11:37:13 UTC
This looks like a duplicate of Bug 1576465, which is a kernel issue. I guess it makes sense to keep this open to make sure we're fine on userspace side.

Comment 5 Phil Sutter 2019-03-15 14:30:03 UTC
The issue reported here was fixed in kernel space (tracked by bug 1576465). That fix is available since kernel-3.10.0-1018.el7, so I'm turning this into a TestOnly issue.

Comment 8 errata-xmlrpc 2019-08-06 13:06:14 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:2215