From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8285BC433F5 for ; Sun, 5 Sep 2021 13:26:11 +0000 (UTC) Received: from lists.zx2c4.com (lists.zx2c4.com [165.227.139.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CA8E3600D0 for ; Sun, 5 Sep 2021 13:26:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org CA8E3600D0 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=zx2c4.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.zx2c4.com Received: by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 0f1abb0c; Sun, 5 Sep 2021 13:25:03 +0000 (UTC) Received: from mail.zx2c4.com (mail.zx2c4.com [104.131.123.232]) by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id 194fb8a8 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO) for ; Sun, 5 Sep 2021 13:25:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zx2c4.com; s=20210105; t=1630848300; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=3qhFJcNGQYMVftXkCyeKcyQJP9Hh3eC8egdx+RE70GE=; b=m6+9vBE/KdzIwEiFF+cf3EJud9hMcCVznOgeKLhrL/NreUS+up+kfbG/3P4yr+tg3JbqzB YBd66HxrkFWcgWi8vswBwAccf/5fdJmF1n76H7zqkF/TApU9A+v2CzIxl7BeTgyhMYalv+ pygQnfIxvrjO9lcdbcK7OECZi16RvCo= Received: by mail.zx2c4.com (ZX2C4 Mail Server) with ESMTPSA id 56fdf805 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO) for ; Sun, 5 Sep 2021 13:25:00 +0000 (UTC) Received: by mail-yb1-f180.google.com with SMTP id c206so7975603ybb.12 for ; Sun, 05 Sep 2021 06:24:59 -0700 (PDT) X-Gm-Message-State: AOAM532JGBHTIPKsMg7F7WZekSjymtdkFiK1NN9rW13QOs7QD6TcftZr yjHU4ga9yjanUOx47eE+lu8RJcofPw/KwwgaLnk= X-Google-Smtp-Source: ABdhPJwlijbL1oeQtjWc/LpLTRnTzXzvvtEiwBXC3ekVRdoC69Zcyc/peAeyLZ/3Gqa+pgADnv2XKYdwE5v/xYfws+I= X-Received: by 2002:a5b:d48:: with SMTP id f8mr5835721ybr.449.1630848299129; Sun, 05 Sep 2021 06:24:59 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: "Jason A. Donenfeld" Date: Sun, 5 Sep 2021 15:24:47 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Strange behavior when a peer has the same key as the interface To: =?UTF-8?B?Vm9qdMSbY2ggS8OhbsSb?= Cc: WireGuard mailing list Content-Type: text/plain; charset="UTF-8" X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" This is by design across all implementations, so that multiple peers can share the same stanzas after the [Interface] section. We don't allow peers talking to themselves simply because it made the formal analysis of the crypto slightly more complicated.