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|
/***************************************************************************/
/* */
/* Project: OpenSLP - OpenSource implementation of Service Location */
/* Protocol */
/* */
/* File: slp_message.h */
/* */
/* Abstract: Header file that defines structures and constants that are */
/* specific to the SLP wire protocol messages. */
/* */
/*-------------------------------------------------------------------------*/
/* */
/* Please submit patches to http://www.openslp.org */
/* */
/*-------------------------------------------------------------------------*/
/* */
/* Copyright (C) 2000 Caldera Systems, Inc */
/* All rights reserved. */
/* */
/* 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 Caldera Systems 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 CALDERA */
/* SYSTEMS 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. */
/* */
/***************************************************************************/
#if(!defined SLP_MESSAGE_H_INCLUDED)
#define SLP_MESSAGE_H_INCLUDED
#include "slp_buffer.h"
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <winsock.h>
# ifndef UINT32_T_DEFINED
# define UINT32_T_DEFINED
typedef unsigned int uint32_t;
# endif
#else
# include <sys/types.h>
# ifdef __FreeBSD__
# include <sys/param.h> /* for limits.h - INT_MAX slpd*/
# endif
# include <netinet/in.h> /* for htonl() routines */
# ifdef HAVE_STDINT_H
# include <stdint.h>
# else
# include <inttypes.h>
# endif
#endif
typedef char CHAR;
typedef unsigned char UINT8;
typedef unsigned short UINT16;
#ifndef _WIN32
typedef unsigned long UINT32;
#endif
typedef CHAR* PCHAR;
typedef UINT8* PUINT8;
typedef UINT16* PUINT16;
typedef UINT32* PUINT32;
/*=========================================================================*/
/* SLP Important constants */
/*=========================================================================*/
#define SLP_RESERVED_PORT 427
#define SLP_MCAST_ADDRESS 0xeffffffd /* 239.255.255.253 */
#define SLP_BCAST_ADDRESS 0xffffffff /* 255.255.255.255 */
#define SLPv1_DA_MCAST_ADDRESS 0xe0000123 /* 224.0.1.35 */
#define LOOPBACK_ADDRESS 0x7f000001 /* 127.0.0.1 */
#define SLP_MAX_DATAGRAM_SIZE 1400
#if(!defined SLP_LIFETIME_MAXIMUM)
#define SLP_LIFETIME_MAXIMUM 0xffff
#endif
/*=========================================================================*/
/* SLP Function ID constants */
/*=========================================================================*/
#define SLP_FUNCT_SRVRQST 1
#define SLP_FUNCT_SRVRPLY 2
#define SLP_FUNCT_SRVREG 3
#define SLP_FUNCT_SRVDEREG 4
#define SLP_FUNCT_SRVACK 5
#define SLP_FUNCT_ATTRRQST 6
#define SLP_FUNCT_ATTRRPLY 7
#define SLP_FUNCT_DAADVERT 8
#define SLP_FUNCT_SRVTYPERQST 9
#define SLP_FUNCT_SRVTYPERPLY 10
#define SLP_FUNCT_SAADVERT 11
/*=========================================================================*/
/* SLP Protocol Error codes */
/*=========================================================================*/
#define SLP_ERROR_OK 0
#define SLP_ERROR_LANGUAGE_NOT_SUPPORTED 1
#define SLP_ERROR_PARSE_ERROR 2
#define SLP_ERROR_INVALID_REGISTRATION 3
#define SLP_ERROR_SCOPE_NOT_SUPPORTED 4
#define SLP_ERROR_CHARSET_NOT_UNDERSTOOD 5 /* valid only for SLPv1 */
#define SLP_ERROR_AUTHENTICATION_UNKNOWN 5
#define SLP_ERROR_AUTHENTICATION_ABSENT 6
#define SLP_ERROR_AUTHENTICATION_FAILED 7
#define SLP_ERROR_VER_NOT_SUPPORTED 9
#define SLP_ERROR_INTERNAL_ERROR 10
#define SLP_ERROR_DA_BUSY_NOW 11
#define SLP_ERROR_INVALID_UPDATE 13
#define SLP_ERROR_MESSAGE_NOT_SUPPORTED 14
#define SLP_ERROR_REFRESH_REJECTED 15
/*=========================================================================*/
/* SLP Flags */
/*=========================================================================*/
#define SLP_FLAG_OVERFLOW 0x8000
#define SLP_FLAG_FRESH 0x4000
#define SLP_FLAG_MCAST 0x2000
#ifndef UNICAST_NOT_SUPPORTED
#define SLP_FLAG_UCAST 0x0000
#endif
/*=========================================================================*/
/* SLP Constants */
/*=========================================================================*/
/* Max time to wait for a complete multicast query response */
#define CONFIG_MC_MAX 15
/* Wait interval to give up on a unicast request retransmission */
#define CONFIG_RETRY_MAX 15
/* Default wait between retransmits*/
#define CONFIG_RETRY_INTERVAL 3
#define SLP_DA_SERVICE_TYPE "service:directory-agent"
#define SLP_SA_SERVICE_TYPE "service:service-agent"
/*=========================================================================*/
/* SLP Registration Sources */
/*=========================================================================*/
#define SLP_REG_SOURCE_UNKNOWN 0
#define SLP_REG_SOURCE_REMOTE 1 /* from a remote host */
#define SLP_REG_SOURCE_LOCAL 2 /* from localhost or IPC */
#define SLP_REG_SOURCE_STATIC 3 /* from the slp.reg file */
/*=========================================================================*/
/* SLP Extension IDs */
/*=========================================================================*/
#define SLP_EXTENSION_ID_REG_PID 0x9799
/*=========================================================================*/
/* SLPHeader structure and associated functions */
/*=========================================================================*/
typedef struct _SLPHeader
{
int version;
int functionid;
int length;
int flags;
int encoding; /* language encoding, valid only for SLPv1 */
int extoffset;
int xid;
int langtaglen;
const char* langtag; /* points into the translated message */
}SLPHeader;
/*=========================================================================*/
/* SLPAuthBlock structure and associated functions */
/*=========================================================================*/
typedef struct _SLPAuthBlock
{
unsigned int bsd;
int length;
unsigned int timestamp;
int spistrlen;
const char* spistr;
const unsigned char* authstruct;
/* The following are not part of the RFC protocol. They are used by */
/* the OpenSLP implementation for convenience */
int opaquelen;
char* opaque;
}SLPAuthBlock;
/*=========================================================================*/
/* SLPUrlEntry structure and associated functions */
/*=========================================================================*/
typedef struct _SLPUrlEntry
{
char reserved; /* This will always be 0 */
int lifetime;
int urllen;
const char* url;
int authcount;
SLPAuthBlock* autharray;
/* The following are not part of the RFC protocol. They are used by */
/* the OpenSLP implementation for convenience */
int opaquelen;
char* opaque;
}SLPUrlEntry;
/*=========================================================================*/
/* SLPSrvRqst structure and associated functions */
/*=========================================================================*/
typedef struct _SLPSrvRqst
{
int prlistlen;
const char* prlist;
int srvtypelen;
const char* srvtype;
int scopelistlen;
const char* scopelist;
int predicatever;
int predicatelen;
const char* predicate;
int spistrlen;
const char* spistr;
}SLPSrvRqst;
/*=========================================================================*/
typedef struct _SLPSrvRply
/*=========================================================================*/
{
int errorcode;
int urlcount;
SLPUrlEntry* urlarray;
}SLPSrvRply;
/*=========================================================================*/
typedef struct _SLPSrvReg
/*=========================================================================*/
{
SLPUrlEntry urlentry;
int srvtypelen;
const char* srvtype;
int scopelistlen;
const char* scopelist;
int attrlistlen;
const char* attrlist;
int authcount;
SLPAuthBlock* autharray;
/* The following are used for OpenSLP specific extensions */
uint32_t pid;
/* The following are not part of the RFC protocol. They are used by */
/* the OpenSLP implementation for convenience */
int source;
}SLPSrvReg;
/*=========================================================================*/
typedef struct _SLPSrvDeReg
/*=========================================================================*/
{
int scopelistlen;
const char* scopelist;
SLPUrlEntry urlentry;
int taglistlen;
const char* taglist;
}SLPSrvDeReg;
/*=========================================================================*/
typedef struct _SLPSrvAck
/*=========================================================================*/
{
int errorcode;
}SLPSrvAck;
/*=========================================================================*/
typedef struct _SLPDAAdvert
/*=========================================================================*/
{
int errorcode;
unsigned int bootstamp;
int urllen;
const char* url;
int scopelistlen;
const char* scopelist;
int attrlistlen;
const char* attrlist;
int spilistlen;
const char* spilist;
int authcount;
SLPAuthBlock* autharray;
}SLPDAAdvert;
/*=========================================================================*/
typedef struct _SLPAttrRqst
/*=========================================================================*/
{
int prlistlen;
const char* prlist;
int urllen;
const char* url;
int scopelistlen;
const char* scopelist;
int taglistlen;
const char* taglist;
int spistrlen;
const char* spistr;
}SLPAttrRqst;
/*=========================================================================*/
typedef struct _SLPAttrRply
/*=========================================================================*/
{
int errorcode;
int attrlistlen;
const char* attrlist;
int authcount;
SLPAuthBlock* autharray;
}SLPAttrRply;
/*=========================================================================*/
typedef struct _SLPSrvTypeRqst
/*=========================================================================*/
{
int prlistlen;
const char* prlist;
int namingauthlen;
const char* namingauth;
int scopelistlen;
const char* scopelist;
}SLPSrvTypeRqst;
/*=========================================================================*/
typedef struct _SLPSrvTypeRply
/*=========================================================================*/
{
int errorcode;
int srvtypelistlen;
const char* srvtypelist;
}SLPSrvTypeRply;
/*=========================================================================*/
typedef struct _SLPSAAdvert
/*=========================================================================*/
{
int urllen;
const char* url;
int scopelistlen;
const char* scopelist;
int attrlistlen;
const char* attrlist;
int authcount;
SLPAuthBlock* autharray;
}SLPSAAdvert;
/*=========================================================================*/
typedef struct _SLPMessage
/*=========================================================================*/
{
struct sockaddr_in peer;
SLPHeader header;
union _body
{
SLPSrvRqst srvrqst;
SLPSrvRply srvrply;
SLPSrvReg srvreg;
SLPSrvDeReg srvdereg;
SLPSrvAck srvack;
SLPDAAdvert daadvert;
SLPAttrRqst attrrqst;
SLPAttrRply attrrply;
SLPSrvTypeRqst srvtyperqst;
SLPSrvTypeRply srvtyperply;
SLPSAAdvert saadvert;
}body;
}*SLPMessage;
/*=========================================================================*/
void SLPMessageFreeInternals(SLPMessage message);
/*=========================================================================*/
/*=========================================================================*/
SLPMessage SLPMessageAlloc();
/* Allocates memory for a SLP message descriptor */
/* */
/* Returns - A newly allocated SLPMessage pointer of NULL on ENOMEM */
/*=========================================================================*/
/*=========================================================================*/
SLPMessage SLPMessageRealloc(SLPMessage msg);
/* Reallocates memory for a SLP message descriptor */
/* */
/* Returns - A newly allocated SLPMessage pointer of NULL on ENOMEM */
/*=========================================================================*/
/*=========================================================================*/
void SLPMessageFree(SLPMessage message);
/* Frees memory that might have been allocated by the SLPMessage for */
/* UrlEntryLists or AuthBlockLists. */
/* */
/* message - (IN) the SLPMessage to free */
/*=========================================================================*/
/*=========================================================================*/
int SLPMessageParseHeader(SLPBuffer buffer, SLPHeader* header);
/* Fill out a header structure with what ever is in the buffer */
/* */
/* buffer (IN) the buffer to be parsed */
/* */
/* header (IN/OUT) pointer to the header structure to fill out */
/*=========================================================================*/
/*=========================================================================*/
int SLPMessageParseBuffer(struct sockaddr_in* peerinfo,
SLPBuffer buffer,
SLPMessage message);
/* Initializes a message descriptor by parsing the specified buffer. */
/* */
/* peerinfo - (IN) pointer to the network address information that sent */
/* buffer */
/* */
/* buffer - (IN) pointer the SLPBuffer to parse */
/* */
/* message - (OUT) set to describe the message from the buffer */
/* */
/* Returns - Zero on success, SLP_ERROR_PARSE_ERROR, or */
/* SLP_ERROR_INTERNAL_ERROR if out of memory. SLPMessage is */
/* invalid return is not successful. */
/* */
/* WARNING - If successful, pointers in the SLPMessage reference memory in*/
/* the parsed SLPBuffer. If SLPBufferFree() is called then the */
/* pointers in SLPMessage will be invalidated. */
/*=========================================================================*/
/*=========================================================================*/
/* Functions used to parse buffers */
unsigned short AsUINT16(const char *charptr);
unsigned int AsUINT24(const char *charptr);
unsigned int AsUINT32(const char *charptr);
/*=========================================================================*/
/*=========================================================================*/
/* Functions used to set buffers */
void ToUINT16(char *charptr, unsigned int val);
void ToUINT24(char *charptr, unsigned int val);
void ToUINT32(char *charptr, unsigned int val);
/*=========================================================================*/
#ifdef i386
/*=========================================================================*/
/* Macros to check in_addr */
#define ISLOCAL(addr) ((ntohl((addr).s_addr) & 0xff000000) == 0x7f000000)
#define ISMCAST(addr) ((ntohl((addr).s_addr) & 0xff000000) >= 0xef000000)
/*=========================================================================*/
#else
/*=========================================================================*/
/* Macros to check in_addr */
#define ISLOCAL(addr) (((addr).s_addr & 0xff000000) == 0x7f000000)
#define ISMCAST(addr) (((addr).s_addr & 0xff000000) >= 0xef000000)
/*=========================================================================*/
#endif
#endif
|
