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openvswitch/lib/dhcp.h
Ben Pfaff 195c808624 ofproto: Remove controller discovery support.
I've never heard of anyone actually using controller discovery.
It adds a great deal of code to the source tree, and a little
bit of complication to ofproto, so this commit removes it.
2011-03-16 14:57:56 -07:00

49 lines
1.9 KiB
C

/*
* Copyright (c) 2008, 2011 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef DHCP_H
#define DHCP_H 1
#include <stdint.h>
#include "packets.h"
#include "util.h"
/* Ports used by DHCP. */
#define DHCP_SERVER_PORT 67 /* Port used by DHCP server. */
#define DHCP_CLIENT_PORT 68 /* Port used by DHCP client. */
#define DHCP_HEADER_LEN 236
struct dhcp_header {
uint8_t op; /* DHCP_BOOTREQUEST or DHCP_BOOTREPLY. */
uint8_t htype; /* ARP_HRD_ETHERNET (typically). */
uint8_t hlen; /* ETH_ADDR_LEN (typically). */
uint8_t hops; /* Hop count; set to 0 by client. */
uint32_t xid; /* Transaction ID. */
uint16_t secs; /* Since client started address acquisition. */
uint16_t flags; /* DHCP_FLAGS_*. */
uint32_t ciaddr; /* Client IP, if it has a lease for one. */
uint32_t yiaddr; /* Client ("your") IP address. */
uint32_t siaddr; /* Next server IP address. */
uint32_t giaddr; /* Relay agent IP address. */
uint8_t chaddr[16]; /* Client hardware address. */
char sname[64]; /* Optional server host name. */
char file[128]; /* Boot file name. */
/* Followed by variable-length options field. */
};
BUILD_ASSERT_DECL(DHCP_HEADER_LEN == sizeof(struct dhcp_header));
#endif /* dhcp.h */