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 #include <sys/cdefs.h> 29 /* 30 */ 31 #define TIMEOUT 5 32 #define MAX_TIMEOUTS 5 33 34 /* Generic values */ 35 #define MAXSEGSIZE 65464 /* Maximum size of the data segment */ 36 #define MAXPKTSIZE (MAXSEGSIZE + 4) /* Maximum size of the packet */ 37 38 /* For the blksize option */ 39 #define BLKSIZE_MIN 8 /* Minimum size of the data segment */ 40 #define BLKSIZE_MAX MAXSEGSIZE /* Maximum size of the data segment */ 41 42 /* For the timeout option */ 43 #define TIMEOUT_MIN 0 /* Minimum timeout value */ 44 #define TIMEOUT_MAX 255 /* Maximum timeout value */ 45 #define MIN_TIMEOUTS 3 46 47 /* For the windowsize option */ 48 #define WINDOWSIZE 1 49 #define WINDOWSIZE_MIN 1 50 #define WINDOWSIZE_MAX 65535 51 52 extern int timeoutpacket; 53 extern int timeoutnetwork; 54 extern int maxtimeouts; 55 int settimeouts(int timeoutpacket, int timeoutnetwork, int maxtimeouts); 56 57 extern uint16_t segsize; 58 extern uint16_t pktsize; 59 extern uint16_t windowsize; 60 61 extern int acting_as_client; 62 63 /* 64 */ 65 void unmappedaddr(struct sockaddr_in6 *sin6); 66 ssize_t get_field(int peer, char *buffer, ssize_t size); 67 68 /* 69 * Packet types 70 */ 71 struct packettypes { 72 int value; 73 const char *const name; 74 }; 75 extern struct packettypes packettypes[]; 76 const char *packettype(int); 77 78 /* 79 * RP_ 80 */ 81 struct rp_errors { 82 int error; 83 const char *const desc; 84 }; 85 extern struct rp_errors rp_errors[]; 86 char *rp_strerror(int error); 87 88 /* 89 * Debug features 90 */ 91 #define DEBUG_NONE 0x0000 92 #define DEBUG_PACKETS 0x0001 93 #define DEBUG_SIMPLE 0x0002 94 #define DEBUG_OPTIONS 0x0004 95 #define DEBUG_ACCESS 0x0008 96 struct debugs { 97 int value; 98 const char *const name; 99 const char *const desc; 100 }; 101 extern int debug; 102 extern struct debugs debugs[]; 103 extern int packetdroppercentage; 104 int debug_find(char *s); 105 int debug_finds(char *s); 106 const char *debug_show(int d); 107 108 /* 109 * Log routines 110 */ 111 #define DEBUG(s) tftp_log(LOG_DEBUG, "%s", s) 112 extern int tftp_logtostdout; 113 void tftp_openlog(const char *ident, int logopt, int facility); 114 void tftp_closelog(void); 115 void tftp_log(int priority, const char *message, ...) __printflike(2, 3); 116 117 /* 118 * Performance figures 119 */ 120 struct tftp_stats { 121 size_t amount; 122 int rollovers; 123 uint32_t blocks; 124 int retries; 125 struct timeval tstart; 126 struct timeval tstop; 127 }; 128 129 void stats_init(struct tftp_stats *ts); 130 void printstats(const char *direction, int verbose, struct tftp_stats *ts); 131