hdr_src.h
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1996 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 MASH Research
- * Group at the University of California Berkeley.
- * 4. Neither the name of the University nor of the Research Group 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.
- */
- /*
- * Contributed by Rishi Bhargava <rishi_bhargava@yahoo.com> May, 2001.
- */
- #ifndef _HDR_SRC_H
- #define _HDR_SRC_H
- #include <assert.h>
- #include <packet.h>
- #define SR_HDR_SZ 4 // size of constant part of hdr
- #define MAX_SR_LEN 16 // longest source route we can handle
- typedef struct hash_node {
- int route_len;
- int route[30];
- int tag; /* this is the connection id*/
- struct hash_node *next;
- } h_node;
- struct hdr_src {
- int num_addrs_;
- int cur_addr_;
- int addrs[MAX_SR_LEN];
-
- int fid; // flow id of the connection
- static int offset_; /* offset for this header */
- inline int& offset() { return offset_; }
- inline static hdr_src* access(Packet* p) {
- return (hdr_src*) p->access(offset_);
- }
-
- inline int& num_addrs() {return num_addrs_;}
- inline int& cur_addr() {return cur_addr_;}
- };
- #endif