From owner-freebsd-net@freebsd.org Wed Apr 25 13:55:10 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 754E2FA6B0C for ; Wed, 25 Apr 2018 13:55:10 +0000 (UTC) (envelope-from sonsechang@gmail.com) Received: from mail-qk0-x229.google.com (mail-qk0-x229.google.com [IPv6:2607:f8b0:400d:c09::229]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 089E66A5F0 for ; Wed, 25 Apr 2018 13:55:10 +0000 (UTC) (envelope-from sonsechang@gmail.com) Received: by mail-qk0-x229.google.com with SMTP id x22so4828412qkb.12 for ; Wed, 25 Apr 2018 06:55:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=user-agent:date:subject:from:to:message-id:thread-topic :mime-version; bh=UZH2TXg5lIRe8mIR/sLcA5tvbe3zIPUlm9j1EFbYePs=; b=L9JCXYPH/32iMXTmvGHld4ztnHc0yxvzBUDejyyGZHI7v4YK2aEXJzPZqV50CiBFzw O13r8TipmJqPOjMJHPgFpfke94OBUgN7bmYlE2VBrXfKMy3FhqdXrNTWgCJc1lqNlEtp 7LWMRhQvpnt8j+O2n4vggOpar+1KKnxcIGgjv+MQMbCbeR1KrXu8kjHdi46eQqxepGXI YFdKL3LkzO32IyNjuA6rmS9WNI4viHVyygNMF9up1pCObBaIGWtsJ9GSwhCGzfSXYba2 vMXnoc4osD5/lSukzSK5kVKpe2iVZqzG6jRp4lQ2TVXoyeAqtt8Iz7NubhEQ2OBgaGgl MMZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:user-agent:date:subject:from:to:message-id :thread-topic:mime-version; bh=UZH2TXg5lIRe8mIR/sLcA5tvbe3zIPUlm9j1EFbYePs=; b=GtgwTBSXXmMGF3YbUSB/U31ejIf5g9h1zU1GKti4h9LcIGVNP2FTmqZruouTn2YyDR W8CRyiHxC+O1r47ZDYobNOpK2RNtt6LAJjqW2Ou94dV1y7lnF/1oVotsx2bsjWrQc+PY TQWhrdqSkccTRIUbjq2v5Cm+B0MqmsA14ixtyFnBEUEg4A1H6FMSyo2Mxdc8oZ+ihSCL DnJ3uaGRJZvjz5wofMCkl2aubOKQ5iUv0m/qTI6NXyzZ7xX8Gny16eUNYqjAsLSaukXR 99MPU9hKkXTXCwZeM8gNT1sL33PDBrqZOUMhFzJiFQW9F8gOOImCO4Pu9zY5SFBeZBhZ FXmg== X-Gm-Message-State: ALQs6tAUvzrk7MrcQXEEDO2gggfKv1r16gIZJFB5vkYnXk0iofbXormB DVwUtnhITx4561z2N5IQHl3ndw== X-Google-Smtp-Source: AB8JxZrit2eGd/LR+8QclkZjSfoR8UECNNTnM7ThQEJFtvExEvKcgBAfoQ2KqElq47ijFpMmJUkGcQ== X-Received: by 10.55.33.24 with SMTP id h24mr30076442qkh.431.1524664509364; Wed, 25 Apr 2018 06:55:09 -0700 (PDT) Received: from [10.63.223.168] ([216.240.30.5]) by smtp.gmail.com with ESMTPSA id m28-v6sm10739138qta.67.2018.04.25.06.55.08 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 25 Apr 2018 06:55:08 -0700 (PDT) User-Agent: Microsoft-MacOutlook/10.c.0.180410 Date: Wed, 25 Apr 2018 09:55:07 -0400 Subject: Use of radix_node_head From: Sechang Son To: freebsd-net Message-ID: Thread-Topic: Use of radix_node_head Mime-version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.25 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, 25 Apr 2018 13:55:10 -0000 Hi, Some of routing data structures were modified in BSD 11. Especially radix_node_head is sort of replaced by rib_head. Can somebody explain what this change is for? Also, radix_node_head is still defined and is used by some. What is the use of this old data structure and how it should be used? Thank you! -- Sechang Son