1 /* 2 * ut-sim.h 3 * 4 * an unreliable transport simulator 5 * (for testing replay databases and suchlike) 6 * 7 * David A. McGrew 8 * Cisco Systems, Inc. 9 */ 10 11 /* 12 * 13 * Copyright (c) 2001-2006, Cisco Systems, Inc. 14 * All rights reserved. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 20 * Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 23 * Redistributions in binary form must reproduce the above 24 * copyright notice, this list of conditions and the following 25 * disclaimer in the documentation and/or other materials provided 26 * with the distribution. 27 * 28 * Neither the name of the Cisco Systems, Inc. nor the names of its 29 * contributors may be used to endorse or promote products derived 30 * from this software without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 35 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 36 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 37 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 38 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 39 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 41 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 42 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 43 * OF THE POSSIBILITY OF SUCH DAMAGE. 44 * 45 */ 46 47 48 49 #ifndef UT_SIM_H 50 #define UT_SIM_H 51 52 #include "integers.h" /* for uint32_t */ 53 54 #define UT_BUF 160 /* maximum amount of packet reorder */ 55 56 typedef struct { 57 uint32_t index; 58 uint32_t buffer[UT_BUF]; 59 } ut_connection; 60 61 /* 62 * ut_init(&u) initializes the ut_connection 63 * 64 * this function should always be the first one called on a new 65 * ut_connection 66 */ 67 68 void 69 ut_init(ut_connection *utc); 70 71 /* 72 * ut_next_index(&u) returns the next index from the simulated 73 * unreliable connection 74 */ 75 76 uint32_t 77 ut_next_index(ut_connection *utc); 78 79 80 #endif /* UT_SIM_H */ 81