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Description of problem:
"in" is considered a keyword and thus prevented from being accepted as chain name. This behaviour changed since rhel-8.1.0.
Version-Release number of selected component (if applicable):
nftables-0.9.3-11.el8.x86_64
iptables-1.8.4-9.el8.x86_64
How reproducible:
always
Steps to Reproduce:
iptables -N in
nft list ruleset | tee rules.nft
nft flush ruleset
nft -f rules.nft
Actual results:
table ip filter {
chain INPUT {
type filter hook input priority filter; policy accept;
}
chain FORWARD {
type filter hook forward priority filter; policy accept;
}
chain OUTPUT {
type filter hook output priority filter; policy accept;
}
chain in {
}
}
rules.nft:14:8-9: Error: syntax error, unexpected in, expecting string
chain in {
^^
rules.nft:16:1-1: Error: syntax error, unexpected '}'
}
^
Expected results:
successful rules load
Additional info:
double quotation marks cause another type of error:
Error: syntax error, unexpected quoted string, expecting string
Yes, this is due to upstream commit 57c2b152c5f08 ("src: add ipsec (xfrm)
expression") which added new keywords "in" and "out".
Basically it's the same issue as reported in bug 1658716, so marking this one
as a duplicate.
*** This bug has been marked as a duplicate of bug 1658716 ***
Description of problem: "in" is considered a keyword and thus prevented from being accepted as chain name. This behaviour changed since rhel-8.1.0. Version-Release number of selected component (if applicable): nftables-0.9.3-11.el8.x86_64 iptables-1.8.4-9.el8.x86_64 How reproducible: always Steps to Reproduce: iptables -N in nft list ruleset | tee rules.nft nft flush ruleset nft -f rules.nft Actual results: table ip filter { chain INPUT { type filter hook input priority filter; policy accept; } chain FORWARD { type filter hook forward priority filter; policy accept; } chain OUTPUT { type filter hook output priority filter; policy accept; } chain in { } } rules.nft:14:8-9: Error: syntax error, unexpected in, expecting string chain in { ^^ rules.nft:16:1-1: Error: syntax error, unexpected '}' } ^ Expected results: successful rules load Additional info: double quotation marks cause another type of error: Error: syntax error, unexpected quoted string, expecting string