From owner-svn-src-all@freebsd.org Wed Jun 17 13:27:13 2020 Return-Path: Delivered-To: svn-src-all@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 9C55C34EF24; Wed, 17 Jun 2020 13:27:13 +0000 (UTC) (envelope-from thj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49n5TF3mYbz3Y36; Wed, 17 Jun 2020 13:27:13 +0000 (UTC) (envelope-from thj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 7979D21089; Wed, 17 Jun 2020 13:27:13 +0000 (UTC) (envelope-from thj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 05HDRDYG085207; Wed, 17 Jun 2020 13:27:13 GMT (envelope-from thj@FreeBSD.org) Received: (from thj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 05HDRDPL085206; Wed, 17 Jun 2020 13:27:13 GMT (envelope-from thj@FreeBSD.org) Message-Id: <202006171327.05HDRDPL085206@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: thj set sender to thj@FreeBSD.org using -f From: Tom Jones Date: Wed, 17 Jun 2020 13:27:13 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r362275 - head/sys/netinet X-SVN-Group: head X-SVN-Commit-Author: thj X-SVN-Commit-Paths: head/sys/netinet X-SVN-Commit-Revision: 362275 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Jun 2020 13:27:13 -0000 Author: thj Date: Wed Jun 17 13:27:13 2020 New Revision: 362275 URL: https://svnweb.freebsd.org/changeset/base/362275 Log: Add header definition for RFC4340, Datagram Congestion Control Protocol Add a header definition for DCCP as defined in RFC4340. This header definition is required to perform validation when receiving and forwarding DCCP packets. We do not currently support DCCP. Reviewed by: gallatin, bz Approved by: bz (co-mentor) MFC after: 1 week MFC with: 350749 Differential Revision: https://reviews.freebsd.org/D21179 Added: head/sys/netinet/dccp.h (contents, props changed) Added: head/sys/netinet/dccp.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/netinet/dccp.h Wed Jun 17 13:27:13 2020 (r362275) @@ -0,0 +1,78 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2019 Tom Jones + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _NETINET_DCCP_H_ +#define _NETINET_DCCP_H_ + +/* DCCP protocol header as per RFC4340 */ +struct dccphdr { + uint16_t d_sport; + uint16_t d_dport; + uint8_t d_doff; +#if BYTE_ORDER == LITTLE_ENDIAN + uint8_t d_cscov:4, + d_ccval:4; +#endif +#if BYTE_ORDER == BIG_ENDIAN + uint8_t d_ccval:4, + d_cscov:4; +#endif + uint8_t d_cksum[2]; +#if BYTE_ORDER == LITTLE_ENDIAN + uint8_t d_res:3, + d_type:4, + d_x:1; +#endif +#if BYTE_ORDER == BIG_ENDIAN + uint8_t d_x:1, + d_type:4, + d_res:3; +#endif + /* + * Provide enough space for both the short (24 bit) sequence number and + * the long (48 bit) sequene number and a leading reserved byte in + * front of the long sequence number. + */ + union dccp_seqno { + uint8_t shortseq[3]; + struct dccp_long_seqno { + uint8_t res; + uint8_t seq[6]; + } longseq; + } d_seqno; +}; + +#define d_seqno_short d_seqno.shortseq; +#define d_seqno_long d_seqno.longseq.seq; + +#define DCCP_SHORTHDR 12 +#define DCCP_LONGHDR 16 +#define DCCP_EXTHDR 0x80 + +#endif /* _NETINET_DCCP_H */