1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (C) 2008 Edwin Groothuis. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 */ 30 #define TIMEOUT 5 31 #define MAX_TIMEOUTS 5 32 33 /* Generic values */ 34 #define MAXSEGSIZE 65464 /* Maximum size of the data segment */ 35 #define MAXPKTSIZE (MAXSEGSIZE + 4) /* Maximum size of the packet */ 36 37 /* For the blksize option */ 38 #define BLKSIZE_MIN 8 /* Minimum size of the data segment */ 39 #define BLKSIZE_MAX MAXSEGSIZE /* Maximum size of the data segment */ 40 41 /* For the timeout option */ 42 #define TIMEOUT_MIN 0 /* Minimum timeout value */ 43 #define TIMEOUT_MAX 255 /* Maximum timeout value */ 44 #define MIN_TIMEOUTS 3 45 46 /* For the windowsize option */ 47 #define WINDOWSIZE 1 48 #define WINDOWSIZE_MIN 1 49 #define WINDOWSIZE_MAX 65535 50 51 extern int timeoutpacket; 52 extern int timeoutnetwork; 53 extern int maxtimeouts; 54 int settimeouts(int timeoutpacket, int timeoutnetwork, int maxtimeouts); 55 56 extern uint16_t segsize; 57 extern uint16_t pktsize; 58 extern uint16_t windowsize; 59 60 extern int acting_as_client; 61 62 /* 63 */ 64 void unmappedaddr(struct sockaddr_in6 *sin6); 65 size_t get_field(int peer, char *buffer, size_t size); 66 67 /* 68 * Packet types 69 */ 70 struct packettypes { 71 int value; 72 const char *const name; 73 }; 74 extern struct packettypes packettypes[]; 75 const char *packettype(int); 76 77 /* 78 * RP_ 79 */ 80 struct rp_errors { 81 int error; 82 const char *const desc; 83 }; 84 extern struct rp_errors rp_errors[]; 85 char *rp_strerror(int error); 86 87 /* 88 * Debug features 89 */ 90 #define DEBUG_NONE 0x0000 91 #define DEBUG_PACKETS 0x0001 92 #define DEBUG_SIMPLE 0x0002 93 #define DEBUG_OPTIONS 0x0004 94 #define DEBUG_ACCESS 0x0008 95 struct debugs { 96 int value; 97 const char *const name; 98 const char *const desc; 99 }; 100 extern int debug; 101 extern struct debugs debugs[]; 102 extern unsigned int packetdroppercentage; 103 int debug_find(char *s); 104 int debug_finds(char *s); 105 const char *debug_show(int d); 106 107 /* 108 * Log routines 109 */ 110 #define DEBUG(s) tftp_log(LOG_DEBUG, "%s", s) 111 extern int tftp_logtostdout; 112 void tftp_openlog(const char *ident, int logopt, int facility); 113 void tftp_closelog(void); 114 void tftp_log(int priority, const char *message, ...) __printflike(2, 3); 115 116 /* 117 * Performance figures 118 */ 119 struct tftp_stats { 120 size_t amount; 121 int rollovers; 122 uint32_t blocks; 123 int retries; 124 struct timeval tstart; 125 struct timeval tstop; 126 }; 127 128 void stats_init(struct tftp_stats *ts); 129 void printstats(const char *direction, int verbose, struct tftp_stats *ts); 130