From owner-freebsd-net@freebsd.org Wed Oct 14 22:00:42 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 51E4D443D0D; Wed, 14 Oct 2020 22:00:42 +0000 (UTC) (envelope-from cneirabustos@gmail.com) Received: from mail-yb1-xb2b.google.com (mail-yb1-xb2b.google.com [IPv6:2607:f8b0:4864:20::b2b]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CBRDn2Y04z4VH3; Wed, 14 Oct 2020 22:00:41 +0000 (UTC) (envelope-from cneirabustos@gmail.com) Received: by mail-yb1-xb2b.google.com with SMTP id n142so546631ybf.7; Wed, 14 Oct 2020 15:00:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=UDTi2oGv+eXHzZZtnE+FE3FCIwug3I2L2Z5ZMLx9nq0=; b=ogL36mwnPnYTCAr/61nHUgMK6NGwIhkSAaW3RuubSLy865PyHNLS7TxvmgkUXll9Hg SM7ZoGOMPOADS4VFPBNaLg3UppyuTnDAy2960JOw5zGxo6K/GyWFfK9m0HT+wRGR9uy8 avB5Y13Fu7rSZFSl0ZVh/5sUpvBX7dYSGN3RObirw2sEL6as7uUltFoBe9RZiErjvsKu jOGSjHSws45pfGMclWI/l6+q+0IlU+PWf+O28AHmAjzyyVFqLKRT6DlHIZCJgnEcgahv ScLqAxk8wp/K6rNNi9wFpPdbMpT5BYl35bp59009StsHuv0DY9W6UuHY9EGY9ZjnUeEm DfUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=UDTi2oGv+eXHzZZtnE+FE3FCIwug3I2L2Z5ZMLx9nq0=; b=aECfrH6hi4e+q9fzfynWCtBJWjelLCl12iK8aIm3wDfwZPW1wzF/9GLkf4VwU5mFVY cLF9ILG3Mfgu4FFRkmVGEZCjZsDivtUNlvI9+oYyiF8Fb0JKPtZCZHjq13w8+rj0FO+w 9IVDuscI2Q9I07eLvDdh3i0cMGasZL9Cq8yqKesuS7Wgpgwzdb1OOVpVtGjnhkpUghWj 6jX0z0PuIKOi4Tfv/bFtUt0RLaHLAVvyfr0kAVdYwBWg7qaCOopM26cCMuUOVgj+BisJ 7dMelOAF/uVEJBaW5OHkJC3aekRqVyEtxD2B2782n8513P/j28a3eGpQeFsjucFp1ACP Guzw== X-Gm-Message-State: AOAM532n+Ukrmw1sqDJuSocTZF524wNVer91w5/qf2xyGycfX/BR6ZoX MtwQRhTfifyCGN83jNsJCVKKPT7foIUjWTmbTj+M8Li1MuWJPA== X-Google-Smtp-Source: ABdhPJyLdTBXKDrVnSiEMZZdjR/Jro/zcrnsWaS3ovQlqZjXuhD0eCSQCcWSt26ibIVWab+2hykEQoqVdZayhOnA5jk= X-Received: by 2002:a25:5090:: with SMTP id e138mr1178435ybb.430.1602712839209; Wed, 14 Oct 2020 15:00:39 -0700 (PDT) MIME-Version: 1.0 From: carlos antonio neira bustos Date: Wed, 14 Oct 2020 19:00:19 -0300 Message-ID: Subject: Allow PING(8) in jails without raw socket access permissions To: freebsd-net , FreeBSD Hackers X-Rspamd-Queue-Id: 4CBRDn2Y04z4VH3 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=ogL36mwn; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of cneirabustos@gmail.com designates 2607:f8b0:4864:20::b2b as permitted sender) smtp.mailfrom=cneirabustos@gmail.com X-Spamd-Result: default: False [-2.80 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.990]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.01)[-1.011]; NEURAL_SPAM_SHORT(0.20)[0.200]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::b2b:from]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-net,freebsd-hackers]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.33 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Oct 2020 22:00:42 -0000 Hello, I have currently a patch in review with jamie which is the current jail maintainer and kyle evans, if anyone else could comment/review this patch : https://reviews.freebsd.org/D26782 What has been done is the following : Raw socket access is allowed for ICMP protocol as is required by PING(8) but option IP_HDRINCL is not allowed. to accomplish this a new privilege PRIV_NETINET_ICMP_ACCESS has been added by default for jails. Bests