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This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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* Copyright (C)2003-2006 Helsinki University of Technology
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* Copyright (C)2003-2006 USAGI/WIDE Project
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Authors:
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* Noriaki TAKAMIYA @USAGI
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* Masahide NAKAMURA @USAGI
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* YOSHIFUJI Hideaki @USAGI
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*/
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#ifndef _NET_MIP6_H
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#define _NET_MIP6_H
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#include <linux/skbuff.h>
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#include <net/sock.h>
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#define MIP6_OPT_PAD_1 0
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#define MIP6_OPT_PAD_N 1
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/*
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* Mobility Header
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*/
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struct ip6_mh {
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__u8 ip6mh_proto;
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__u8 ip6mh_hdrlen;
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__u8 ip6mh_type;
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__u8 ip6mh_reserved;
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__u16 ip6mh_cksum;
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/* Followed by type specific messages */
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__u8 data[0];
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} __attribute__ ((__packed__));
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#define IP6_MH_TYPE_BRR 0 /* Binding Refresh Request */
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#define IP6_MH_TYPE_HOTI 1 /* HOTI Message */
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#define IP6_MH_TYPE_COTI 2 /* COTI Message */
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#define IP6_MH_TYPE_HOT 3 /* HOT Message */
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#define IP6_MH_TYPE_COT 4 /* COT Message */
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#define IP6_MH_TYPE_BU 5 /* Binding Update */
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#define IP6_MH_TYPE_BACK 6 /* Binding ACK */
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#define IP6_MH_TYPE_BERROR 7 /* Binding Error */
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#define IP6_MH_TYPE_MAX IP6_MH_TYPE_BERROR
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#endif
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