From 7df66f1c13563cfbab75246b009ce36f69ee4487 Mon Sep 17 00:00:00 2001 From: Shyam Saini Date: Thu, 26 Jan 2017 14:49:50 +0530 Subject: iptables: fix the wrong appending of jump verdict after the comment. Fix wrong appending of jump verdict after the comment For example: $ iptables-translate -A INPUT -p tcp -m tcp --sport http -s 192.168.0.0/16 -d 192.168.0.0/16 -j LONGNACCEPT -m comment --comment "foobar" nft add rule ip filter INPUT ip saddr 192.168.0.0/16 ip daddr 192.168.0.0/16 tcp sport 80 counter comment \"foobar\"jump LONGNACCEPT Note that even without comment with double-quotes (i.e. --comment "foobar"), it will add quotes: $ iptables-translate -A FORWARD -p tcp -m tcp --sport http -s 192.168.0.0/16 -d 192.168.0.0/16 -j DROP -m comment --comment singlecomment nft add rule ip filter FORWARD ip saddr 192.168.0.0/16 ip daddr 192.168.0.0/16 tcp sport 80 counter comment \"singlecomment\"drop Attempting to apply the translated/generated rule will result to: $ nft add rule ip filter INPUT ip saddr 192.168.0.0/16 ip daddr 192.168.0.0/16 tcp sport 80 counter comment \"foobar\"jump LONGNACCEPT :1:111-114: Error: syntax error, unexpected jump, expecting endof file or newline or semicolon add rule ip filter INPUT ip saddr 192.168.0.0/16 ip daddr 192.168.0.0/16 tcp sport 80 counter comment "foobar"jump LONGNACCEPT After this patch $ iptables-translate -A INPUT -p tcp -m tcp --sport http -s 192.168.0.0/16 -d 192.168.0.0/16 -j LONGNACCEPT -m comment --comment "foobar" nft add rule ip filter INPUT ip saddr 192.168.0.0/16 ip daddr 192.168.0.0/16 tcp sport 80 counter jump LONGNACCEPT comment \"foobar\" which is correct translation Signed-off-by: Shyam Saini Reviewed-by: Shivani Bhardwaj Signed-off-by: Pablo Neira Ayuso --- iptables/nft-ipv6.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'iptables/nft-ipv6.c') diff --git a/iptables/nft-ipv6.c b/iptables/nft-ipv6.c index c475b8e9..9cf4058f 100644 --- a/iptables/nft-ipv6.c +++ b/iptables/nft-ipv6.c @@ -438,12 +438,11 @@ static int nft_ipv6_xlate(const void *data, struct xt_xlate *xl) /* Always add counters per rule, as in iptables */ xt_xlate_add(xl, "counter "); + ret = xlate_action(cs, !!(cs->fw6.ipv6.flags & IP6T_F_GOTO), xl); comment = xt_xlate_get_comment(xl); if (comment) - xt_xlate_add(xl, "comment %s", comment); - - ret = xlate_action(cs, !!(cs->fw6.ipv6.flags & IP6T_F_GOTO), xl); + xt_xlate_add(xl, " comment %s", comment); return ret; } -- cgit v1.2.3