/* * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Niels Provos. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ /* $Id: packets.h,v 1.1 1998/11/14 23:37:26 deraadt Exp $ */ /* * packets.h: */ #ifndef _PACKETS_H_ #define _PACKETS_H_ #define COOKIE_REQUEST 0 #define COOKIE_RESPONSE 1 #define VALUE_REQUEST 2 #define VALUE_RESPONSE 3 #define IDENTITY_REQUEST 4 #define SECRET_RESPONSE 5 #define SECRET_REQUEST 6 #define IDENTITY_RESPONSE 7 #define SPI_NEEDED 8 #define SPI_UPDATE 9 #define BAD_COOKIE 10 #define RESOURCE_LIMIT 11 #define VERIFICATION_FAILURE 12 #define MESSAGE_REJECT 13 #define COOKIE_SIZE 16 #define SPI_SIZE 4 /* General packet definition */ #define FLD_CONST 0 #define FLD_VARPRE 1 #define FLD_ATTRIB 2 #define FMD_ATT_ONE 0 #define FMD_ATT_FILL 1 struct packet_sub { char *field; /* Name of Field */ int type; /* Type of Field */ int mod; /* Modifier: */ u_int16_t size; /* Pointer to start of Field */ void *where; /* Pointer to start of Field */ }; struct packet { char *name; int min, max; struct packet_sub *parts; }; struct cookie_request { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t counter; }; #define COOKIE_REQUEST_PACKET_SIZE sizeof(struct cookie_request) struct cookie_response { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t counter; }; #define COOKIE_RESPONSE_MIN sizeof(struct cookie_response) #define COOKIE_RESPONSE_SCHEMES(p) (((u_int8_t *)(p))+COOKIE_RESPONSE_MIN) #define SCHEME_SIZE(p) (4 + ((u_int16_t)*((p)+2))*256 + (*((p)+3))) struct value_request { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t counter; u_int8_t scheme[2]; }; #define VALUE_REQUEST_MIN sizeof(struct value_request) #define VALUE_REQUEST_VALUE(p) (((u_int8_t *)(p))+VALUE_REQUEST_MIN) struct value_response { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t reserved[3]; }; #define VALUE_RESPONSE_MIN sizeof(struct value_response) #define VALUE_RESPONSE_VALUE(p) (((u_int8_t *)(p))+VALUE_RESPONSE_MIN) struct identity_message { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t lifetime[3]; u_int8_t SPI[SPI_SIZE]; }; #define IDENTITY_MESSAGE_MIN sizeof(struct identity_message) #define IDENTITY_MESSAGE_CHOICE(p) (((u_int8_t *)(p))+IDENTITY_MESSAGE_MIN) #define IDENTITY_MESSAGE_IDENT(p) (IDENTITY_MESSAGE_CHOICE(p)+*((u_int8_t *)(p)+1)) struct spi_needed { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t reserved[7]; }; #define SPI_NEEDED_MIN sizeof(struct spi_needed) #define SPI_NEEDED_VERIFICATION(p) (((u_int8_t *)(p))+SPI_NEEDED_MIN) struct spi_update { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t lifetime[3]; u_int8_t SPI[SPI_SIZE]; }; #define SPI_UPDATE_MIN sizeof(struct spi_update) #define SPI_UPDATE_VERIFICATION(p) (((u_int8_t *)(p))+SPI_UPDATE_MIN) struct error_message { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; }; #define ERROR_MESSAGE_PACKET_SIZE sizeof(struct error_message) struct message_reject { u_int8_t icookie[COOKIE_SIZE]; u_int8_t rcookie[COOKIE_SIZE]; u_int8_t type; u_int8_t badtype; u_int16_t offset; }; #define MESSAGE_REJECT_PACKET_SIZE sizeof(struct message_reject) #endif /* _PACKETS_H_ */