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authorPhil Sutter <phil@nwl.cc>2023-03-09 14:31:31 +0100
committerPhil Sutter <phil@nwl.cc>2023-03-10 12:25:08 +0100
commitaef5330fe7827f760b70d5d27010445c3adb3d3c (patch)
tree33997b53f20c7eab86af9f523ed60a46fe57d4d1
parent5d795c183c02332d3b30e08e23f3fb47ad8be6bb (diff)
xt: Fix fallback printing for extensions matching keywords
Yet another Bison workaround: Instead of the fancy error message, an incomprehensible syntax error is emitted: | # iptables-nft -A FORWARD -p tcp -m osf --genre linux | # nft list ruleset | nft -f - | # Warning: table ip filter is managed by iptables-nft, do not touch! | /dev/stdin:4:29-31: Error: syntax error, unexpected osf, expecting string | meta l4proto tcp xt match osf counter packets 0 bytes 0 | ^^^ Avoid this by quoting the extension name when printing: | # nft list ruleset | sudo ./src/nft -f - | # Warning: table ip filter is managed by iptables-nft, do not touch! | /dev/stdin:4:20-33: Error: unsupported xtables compat expression, use iptables-nft with this ruleset | meta l4proto tcp xt match "osf" counter packets 0 bytes 0 | ^^^^^^^^^^^^^^ Fixes: 79195a8cc9e9d ("xt: Rewrite unsupported compat expression dumping") Fixes: e41c53ca5b043 ("xt: Fall back to generic printing from translation") Signed-off-by: Phil Sutter <phil@nwl.cc>
-rw-r--r--src/parser_bison.y2
-rw-r--r--src/xt.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/parser_bison.y b/src/parser_bison.y
index b1b67623..3c06ff48 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -2998,7 +2998,7 @@ stmt : verdict_stmt
| xt_stmt close_scope_xt
;
-xt_stmt : XT STRING STRING
+xt_stmt : XT STRING string
{
$$ = NULL;
xfree($2);
diff --git a/src/xt.c b/src/xt.c
index 2405d3c3..f63096a5 100644
--- a/src/xt.c
+++ b/src/xt.c
@@ -116,7 +116,7 @@ void xt_stmt_xlate(const struct stmt *stmt, struct output_ctx *octx)
xfree(entry);
#endif
if (!rc)
- nft_print(octx, "xt %s %s",
+ nft_print(octx, "xt %s \"%s\"",
typename[stmt->xt.type], stmt->xt.name);
}