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cl349@firebug.cl.cam.ac.uk
eec8a20f38
Fix the tools/vnet makefiles so that vnets will compile and includes updates to the vnet implementation. Vnet ids are increased to 128 bits. The vnet module will insmod whether xen-br0 exists or not. Signed-off-by: Mike Wray <mike.wray@hp.com> Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
/*
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* Copyright (C) 2004 Mike Wray <mike.wray@hp.com>
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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 the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free software Foundation, Inc.,
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* 59 Temple Place, suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _VNET_IF_VARP_H
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#define _VNET_IF_VARP_H
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/* Need struct in_addr, struct in6_addr. */
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#ifdef __KERNEL__
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#include <linux/in.h>
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#include <linux/in6.h>
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#else
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#include <netinet/in.h>
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#endif
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typedef struct Vmac {
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unsigned char mac[ETH_ALEN];
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} Vmac;
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enum {
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VARP_ID = 1,
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VARP_OP_REQUEST = 1,
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VARP_OP_ANNOUNCE = 2,
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};
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typedef struct VnetId {
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union {
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uint8_t vnet8[16];
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uint16_t vnet16[8];
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uint32_t vnet32[4];
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} u;
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} __attribute__((packed)) VnetId;
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typedef struct VarpAddr {
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uint8_t family; // AF_INET or AF_INET6.
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union {
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uint8_t raw[16];
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struct in_addr ip4;
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struct in6_addr ip6;
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} u;
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} __attribute__((packed)) VarpAddr;
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typedef struct VnetMsgHdr {
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uint16_t id;
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uint16_t opcode;
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} __attribute__((packed)) VnetMsgHdr;
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typedef struct VarpHdr {
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VnetMsgHdr hdr;
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VnetId vnet;
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Vmac vmac;
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VarpAddr addr;
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} __attribute__((packed)) VarpHdr;
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/** Default address for varp/vnet broadcasts: 224.10.0.1 */
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#define VARP_MCAST_ADDR 0xe00a0001
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/** UDP port to use for varp protocol. */
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#define VARP_PORT 1798
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#endif /* ! _VNET_IF_VARP_H */
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