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From: Tom Yan <tom.ty89@gmail.com>
To: wireguard@lists.zx2c4.com
Cc: Tom Yan <tom.ty89@gmail.com>
Subject: [PATCH] wg-quick: avoid traffics from momentarily leaking into the tunnel
Date: Fri, 17 Jun 2022 19:34:19 +0800	[thread overview]
Message-ID: <20220617113419.17329-1-tom.ty89@gmail.com> (raw)

The wireguard route table ip rule should stay as a NOP until the
`suppress_prefixlength 0 table main` rule is in effect. Therefore,
add the wireguard default route to its route table after the latter
rule is added.

Signed-off-by: Tom Yan <tom.ty89@gmail.com>
---
 src/wg-quick/linux.bash | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wg-quick/linux.bash b/src/wg-quick/linux.bash
index e4d4c4f..69e5bef 100755
--- a/src/wg-quick/linux.bash
+++ b/src/wg-quick/linux.bash
@@ -220,9 +220,9 @@ add_default() {
 	fi
 	local proto=-4 iptables=iptables pf=ip
 	[[ $1 == *:* ]] && proto=-6 iptables=ip6tables pf=ip6
-	cmd ip $proto route add "$1" dev "$INTERFACE" table $table
 	cmd ip $proto rule add not fwmark $table table $table
 	cmd ip $proto rule add table main suppress_prefixlength 0
+	cmd ip $proto route add "$1" dev "$INTERFACE" table $table
 
 	local marker="-m comment --comment \"wg-quick(8) rule for $INTERFACE\"" restore=$'*raw\n' nftable="wg-quick-$INTERFACE" nftcmd 
 	printf -v nftcmd '%sadd table %s %s\n' "$nftcmd" "$pf" "$nftable"
-- 
2.36.1


             reply	other threads:[~2022-06-17 11:51 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-17 11:34 Tom Yan [this message]
2022-06-17 11:53 ` Jason A. Donenfeld

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