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358 lines
13 KiB
358 lines
13 KiB
4 years ago
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/***************************************************************************/
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/* */
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/* Project: OpenSLP - OpenSource implementation of Service Location */
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/* Protocol Version 2 */
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/* */
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/* File: slplib_dereg.c */
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/* */
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/* Abstract: Implementation for SLPDeReg() call. */
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/* */
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/*-------------------------------------------------------------------------*/
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/* */
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/* Please submit patches to http://www.openslp.org */
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/* */
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/*-------------------------------------------------------------------------*/
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/* */
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/* Copyright (C) 2000 Caldera Systems, Inc */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or without */
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/* modification, are permitted provided that the following conditions are */
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/* met: */
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/* */
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/* Redistributions of source code must retain the above copyright */
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/* notice, this list of conditions and the following disclaimer. */
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/* */
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/* Redistributions in binary form must reproduce the above copyright */
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/* notice, this list of conditions and the following disclaimer in */
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/* the documentation and/or other materials provided with the */
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/* distribution. */
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/* */
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/* Neither the name of Caldera Systems nor the names of its */
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/* contributors may be used to endorse or promote products derived */
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/* from this software without specific prior written permission. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
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/* `AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
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/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */
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/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CALDERA */
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/* SYSTEMS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
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/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
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/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
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/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */
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/* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */
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/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/***************************************************************************/
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#include "slp.h"
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#include "libslp.h"
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/*-------------------------------------------------------------------------*/
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SLPBoolean CallbackSrvDeReg(SLPError errorcode,
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struct sockaddr_in* peerinfo,
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SLPBuffer replybuf,
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void* cookie)
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/*-------------------------------------------------------------------------*/
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{
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SLPMessage replymsg;
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PSLPHandleInfo handle = (PSLPHandleInfo) cookie;
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/*-------------------------------------------*/
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/* Check the errorcode and bail if it is set */
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/*-------------------------------------------*/
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if(errorcode == 0)
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{
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/*--------------------*/
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/* Parse the replybuf */
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/*--------------------*/
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replymsg = SLPMessageAlloc();
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if(replymsg)
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{
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errorcode = SLPMessageParseBuffer(peerinfo,replybuf,replymsg);
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if(errorcode == 0)
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{
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if(replymsg->header.functionid == SLP_FUNCT_SRVACK)
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{
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errorcode = replymsg->body.srvack.errorcode * - 1;
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}
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}
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SLPMessageFree(replymsg);
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}
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else
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{
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errorcode = SLP_MEMORY_ALLOC_FAILED;
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}
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}
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/*----------------------------*/
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/* Call the callback function */
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/*----------------------------*/
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handle->params.dereg.callback((SLPHandle)handle,
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errorcode,
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handle->params.dereg.cookie);
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return SLP_FALSE;
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}
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/*-------------------------------------------------------------------------*/
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SLPError ProcessSrvDeReg(PSLPHandleInfo handle)
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/*-------------------------------------------------------------------------*/
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{
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int sock;
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struct sockaddr_in peeraddr;
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int bufsize = 0;
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char* buf = 0;
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char* curpos = 0;
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SLPError result = 0;
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#ifdef ENABLE_SLPv2_SECURITY
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int urlauthlen = 0;
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unsigned char* urlauth = 0;
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if(SLPPropertyAsBoolean(SLPGetProperty("net.slp.securityEnabled")))
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{
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result = SLPAuthSignUrl(handle->hspi,
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0,
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0,
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handle->params.dereg.urllen,
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handle->params.dereg.url,
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&urlauthlen,
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&urlauth);
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bufsize += urlauthlen;
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}
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#endif
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/*-------------------------------------------------------------------*/
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/* determine the size of the fixed portion of the SRVDEREG */
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/*-------------------------------------------------------------------*/
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bufsize += handle->params.dereg.scopelistlen + 2; /* 2 bytes for len field*/
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bufsize += handle->params.dereg.urllen + 6; /* 1 byte for reserved */
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/* 2 bytes for lifetime */
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/* 2 bytes for urllen */
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/* 1 byte for authcount */
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bufsize += 2; /* 2 bytes for taglistlen*/
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/*--------------------------------------------*/
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/* Allocate a buffer for the SRVDEREG message */
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/*--------------------------------------------*/
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buf = curpos = (char*)xmalloc(bufsize);
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if(buf == 0)
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{
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result = SLP_MEMORY_ALLOC_FAILED;
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goto FINISHED;
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}
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/*------------------------------------------------------------*/
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/* Build a buffer containing the fixed portion of the SRVDEREG*/
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/*------------------------------------------------------------*/
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/* scope list */
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ToUINT16(curpos,handle->params.dereg.scopelistlen);
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curpos = curpos + 2;
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memcpy(curpos,
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handle->params.dereg.scopelist,
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handle->params.dereg.scopelistlen);
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curpos = curpos + handle->params.dereg.scopelistlen;
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/* url-entry reserved */
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*curpos = 0;
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curpos = curpos + 1;
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/* url-entry lifetime */
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ToUINT16(curpos, 0);
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curpos = curpos + 2;
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/* url-entry urllen */
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ToUINT16(curpos,handle->params.dereg.urllen);
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curpos = curpos + 2;
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/* url-entry url */
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memcpy(curpos,
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handle->params.dereg.url,
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handle->params.dereg.urllen);
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curpos = curpos + handle->params.dereg.urllen;
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/* url-entry authcount */
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#ifdef ENABLE_SLPv2_SECURITY
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if(urlauth)
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{
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/* authcount */
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*(curpos) = 1;
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curpos = curpos + 1;
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/* authblock */
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memcpy(curpos,urlauth,urlauthlen);
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curpos = curpos + urlauthlen;
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}
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else
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#endif
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{
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/* authcount */
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*(curpos) = 0;
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curpos = curpos + 1;
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}
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/* tag list */
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/* TODO: No tag list for now put in taglist stuff */
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ToUINT16(curpos,0);
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/*--------------------------*/
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/* Call the RqstRply engine */
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/*--------------------------*/
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sock = NetworkConnectToSA(handle,
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handle->params.dereg.scopelist,
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handle->params.dereg.scopelistlen,
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&peeraddr);
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if(sock >= 0)
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{
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result = NetworkRqstRply(sock,
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&peeraddr,
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handle->langtag,
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0,
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buf,
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SLP_FUNCT_SRVDEREG,
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bufsize,
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CallbackSrvDeReg,
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handle);
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if (result)
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{
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NetworkDisconnectSA(handle);
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}
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}
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else
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{
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result = SLP_NETWORK_INIT_FAILED;
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goto FINISHED;
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}
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FINISHED:
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if(buf) xfree(buf);
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#ifdef ENABLE_SLPv2_SECURITY
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if(urlauth) xfree(urlauth);
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#endif
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return result;
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}
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#ifdef ENABLE_ASYNC_API
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/*-------------------------------------------------------------------------*/
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SLPError AsyncProcessSrvDeReg(PSLPHandleInfo handle)
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/*-------------------------------------------------------------------------*/
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{
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SLPError result = ProcessSrvDeReg(handle);
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xfree((void*)handle->params.dereg.scopelist);
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xfree((void*)handle->params.dereg.url);
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handle->inUse = SLP_FALSE;
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return result;
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}
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#endif
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/*=========================================================================*/
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SLPError SLPAPI SLPDereg(SLPHandle hSLP,
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const char *srvUrl,
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SLPRegReport callback,
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void *cookie)
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/* */
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/* See slplib.h for detailed documentation */
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/*=========================================================================*/
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{
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PSLPHandleInfo handle = 0;
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SLPError result = SLP_OK;
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SLPSrvURL* parsedurl = 0;
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/*------------------------------*/
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/* check for invalid parameters */
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/*------------------------------*/
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if(hSLP == 0 ||
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*(unsigned int*)hSLP != SLP_HANDLE_SIG ||
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srvUrl == 0 ||
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*srvUrl == 0 || /* url can't be empty string */
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callback == 0)
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{
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return SLP_PARAMETER_BAD;
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}
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/*-----------------------------------------*/
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/* cast the SLPHandle into a SLPHandleInfo */
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/*-----------------------------------------*/
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handle = (PSLPHandleInfo)hSLP;
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/*-----------------------------------------*/
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/* Check to see if the handle is in use */
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/*-----------------------------------------*/
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if(handle->inUse == SLP_TRUE)
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{
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return SLP_HANDLE_IN_USE;
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}
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handle->inUse = SLP_TRUE;
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/*------------------*/
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/* Parse the srvurl */
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/*------------------*/
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result = SLPParseSrvURL(srvUrl,&parsedurl);
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if(result)
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{
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if(result == SLP_PARSE_ERROR)
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{
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result = SLP_INVALID_REGISTRATION;
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}
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if(parsedurl) SLPFree(parsedurl);
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handle->inUse = SLP_FALSE;
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return result;
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}
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/*-------------------------------------------*/
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/* Set the handle up to reference parameters */
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/*-------------------------------------------*/
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handle->params.dereg.scopelist = SLPGetProperty("net.slp.useScopes");
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if(handle->params.dereg.scopelist)
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{
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handle->params.dereg.scopelistlen = strlen(handle->params.dereg.scopelist);
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}
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handle->params.dereg.urllen = strlen(srvUrl);
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handle->params.dereg.url = srvUrl;
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handle->params.dereg.callback = callback;
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handle->params.dereg.cookie = cookie;
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/*----------------------------------------------*/
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/* Check to see if we should be async or sync */
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/*----------------------------------------------*/
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#ifdef ENABLE_ASYNC_API
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if(handle->isAsync)
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{
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/* COPY all the parameters */
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handle->params.dereg.scopelist = xstrdup(handle->params.dereg.scopelist);
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handle->params.dereg.url = xstrdup(handle->params.dereg.url);
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/* make sure the strdups did not fail */
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if(handle->params.dereg.scopelist &&
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handle->params.dereg.url)
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{
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result = ThreadCreate((ThreadStartProc)AsyncProcessSrvDeReg,handle);
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}
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else
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{
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result = SLP_MEMORY_ALLOC_FAILED;
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}
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if(result)
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{
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if(handle->params.dereg.scopelist) xfree((void*)handle->params.dereg.scopelist);
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if(handle->params.dereg.url) xfree((void*)handle->params.dereg.url);
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handle->inUse = SLP_FALSE;
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}
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}
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else
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#endif /* ifdef ENABLE_ASYNC_API */
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{
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/* REFERENCE all the parameters */
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result = ProcessSrvDeReg(handle);
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handle->inUse = SLP_FALSE;
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}
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if(parsedurl) SLPFree(parsedurl);
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return result;
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}
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