imep_rt.cc
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1997 Regents of the University of California.
- * 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 the Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
- */
- /* Ported from CMU/Monarch's code*/
- /*
- imep_rt.cc
- $Id
- Routing Protocol (or more generally, ULP) Specific Functions
- */
- #include <imep/imep.h>
- #include <tora/tora_packet.h>
- #include <packet.h>
- // ======================================================================
- // computes the length of a TORA header, copies the header to "dst"
- // and returns the length of the header in "length".
- int
- imepAgent::toraHeaderLength(struct hdr_tora *t)
- {
- switch(t->th_type) {
- case TORATYPE_QRY:
- return sizeof(struct hdr_tora_qry);
- break;
- case TORATYPE_UPD:
- return sizeof(struct hdr_tora_upd);
- break;
- case TORATYPE_CLR:
- return sizeof(struct hdr_tora_clr);
- break;
- default:
- abort();
- }
- return 0; /* Make msvc happy */
- }
- void
- imepAgent::toraExtractHeader(Packet *p, char* dst)
- {
- struct hdr_tora *t = HDR_TORA(p);
- int length = toraHeaderLength(t);
- bcopy((char*) t, dst, length);
- switch(t->th_type) {
- case TORATYPE_QRY:
- stats.qry_objs_created++;
- break;
- case TORATYPE_UPD:
- stats.upd_objs_created++;
- break;
- case TORATYPE_CLR:
- stats.clr_objs_created++;
- break;
- default:
- abort();
- }
- }
- void
- imepAgent::toraCreateHeader(Packet *p, char *src, int length)
- {
- struct hdr_cmn *ch = HDR_CMN(p);
- struct hdr_tora *t = HDR_TORA(p);
- ch->size() = IP_HDR_LEN + length;
- ch->ptype() = PT_TORA;
- bcopy(src, (char*) t, length);
- switch(t->th_type) {
- case TORATYPE_QRY:
- stats.qry_objs_recvd++;
- break;
- case TORATYPE_UPD:
- stats.upd_objs_recvd++;
- break;
- case TORATYPE_CLR:
- stats.clr_objs_recvd++;
- break;
- default:
- abort();
- }
- }