[thirdparty/pdns.git] / pdns / dnsdist-ecs.hh

/*
 * This file is part of PowerDNS or dnsdist.
 * Copyright -- PowerDNS.COM B.V. and its contributors
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * In addition, for the avoidance of any doubt, permission is granted to
 * link this program with OpenSSL and to (re)distribute the binaries
 * produced as the result of such linking.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#pragma once

int rewriteResponseWithoutEDNS(const std::string& initialPacket, vector<uint8_t>& newContent);
int locateEDNSOptRR(const std::string& packet, uint16_t * optStart, size_t * optLen, bool * last);
bool handleEDNSClientSubnet(char * packet, size_t packetSize, unsigned int consumed, uint16_t * len, bool* ednsAdded, bool* ecsAdded, const ComboAddress& remote, bool overrideExisting, uint16_t ecsPrefixLength);
void generateOptRR(const std::string& optRData, string& res);
int removeEDNSOptionFromOPT(char* optStart, size_t* optLen, const uint16_t optionCodeToRemove);
int rewriteResponseWithoutEDNSOption(const std::string& initialPacket, const uint16_t optionCodeToSkip, vector<uint8_t>& newContent);
int getEDNSOptionsStart(char* packet, const size_t offset, const size_t len, char ** optRDLen, size_t * remaining);
bool isEDNSOptionInOpt(const std::string& packet, const size_t optStart, const size_t optLen, const uint16_t optionCodeToFind);
Commit	Line	Data
12471842 PL	1	/*
	2	* This file is part of PowerDNS or dnsdist.
	3	* Copyright -- PowerDNS.COM B.V. and its contributors
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of version 2 of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	9	* In addition, for the avoidance of any doubt, permission is granted to
	10	* link this program with OpenSSL and to (re)distribute the binaries
	11	* produced as the result of such linking.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	21	*/
ca404e94 RG	22	#pragma once
ca404e94 RG	23
11d5d247 RG	24	int rewriteResponseWithoutEDNS(const std::string& initialPacket, vector<uint8_t>& newContent);
11d5d247 RG	25	int locateEDNSOptRR(const std::string& packet, uint16_t * optStart, size_t * optLen, bool * last);
0beaa5c8	26	bool handleEDNSClientSubnet(char * packet, size_t packetSize, unsigned int consumed, uint16_t * len, bool* ednsAdded, bool* ecsAdded, const ComboAddress& remote, bool overrideExisting, uint16_t ecsPrefixLength);
01520028	27	void generateOptRR(const std::string& optRData, string& res);
ff73f02b	28	int removeEDNSOptionFromOPT(char* optStart, size_t* optLen, const uint16_t optionCodeToRemove);
11d5d247	29	int rewriteResponseWithoutEDNSOption(const std::string& initialPacket, const uint16_t optionCodeToSkip, vector<uint8_t>& newContent);
78e3ac9e	30	int getEDNSOptionsStart(char* packet, const size_t offset, const size_t len, char ** optRDLen, size_t * remaining);
4bfdbd34	31	bool isEDNSOptionInOpt(const std::string& packet, const size_t optStart, const size_t optLen, const uint16_t optionCodeToFind);