unbound/edns-subnet/edns-subnet.h
Dimitris Apostolou c21d6af617
Fix typos
2021-11-13 16:56:15 +02:00

68 lines
2.3 KiB
C

/*
* edns-subnet/edns-subnet.h - Subnet option related constants
*
* Copyright (c) 2013, NLnet Labs. All rights reserved.
*
* This software is open source.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 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.
*
* Neither the name of the NLNET LABS nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* HOLDER 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.
*/
/**
* \file
* Subnet option related constants.
*/
#include "util/net_help.h"
#ifndef EDNSSUBNET_EDNSSUBNET_H
#define EDNSSUBNET_EDNSSUBNET_H
/** In use by the edns subnet option code, as assigned by IANA */
#define EDNSSUBNET_ADDRFAM_IP4 1
#define EDNSSUBNET_ADDRFAM_IP6 2
/**
* ECS option
*/
struct ecs_data {
uint16_t subnet_addr_fam;
uint8_t subnet_source_mask;
uint8_t subnet_scope_mask;
uint8_t subnet_addr[INET6_SIZE];
int subnet_validdata;
};
/**
* copy the first n BITS from src to dst iff both src and dst
* are large enough, return 0 on success
*/
int
copy_clear(uint8_t* dst, size_t dstlen, uint8_t* src, size_t srclen, size_t n);
#endif /* EDNSSUBNET_EDNSSUBNET_H */