fdf929ff91
The windowsize option permits multiple blocks to be transmitted before the receiver sends an ACK improving throughput for larger files. Reviewed by: asomers MFC after: 2 weeks Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D23836
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2008 Edwin Groothuis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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*/
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#define TIMEOUT 5
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#define MAX_TIMEOUTS 5
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/* Generic values */
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#define MAXSEGSIZE 65464 /* Maximum size of the data segment */
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#define MAXPKTSIZE (MAXSEGSIZE + 4) /* Maximum size of the packet */
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/* For the blksize option */
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#define BLKSIZE_MIN 8 /* Minimum size of the data segment */
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#define BLKSIZE_MAX MAXSEGSIZE /* Maximum size of the data segment */
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/* For the timeout option */
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#define TIMEOUT_MIN 0 /* Minimum timeout value */
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#define TIMEOUT_MAX 255 /* Maximum timeout value */
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#define MIN_TIMEOUTS 3
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/* For the windowsize option */
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#define WINDOWSIZE 1
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#define WINDOWSIZE_MIN 1
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#define WINDOWSIZE_MAX 65535
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extern int timeoutpacket;
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extern int timeoutnetwork;
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extern int maxtimeouts;
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int settimeouts(int timeoutpacket, int timeoutnetwork, int maxtimeouts);
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extern uint16_t segsize;
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extern uint16_t pktsize;
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extern uint16_t windowsize;
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extern int acting_as_client;
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/*
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*/
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void unmappedaddr(struct sockaddr_in6 *sin6);
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ssize_t get_field(int peer, char *buffer, ssize_t size);
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/*
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* Packet types
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*/
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struct packettypes {
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int value;
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const char *const name;
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};
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extern struct packettypes packettypes[];
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const char *packettype(int);
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/*
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* RP_
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*/
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struct rp_errors {
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int error;
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const char *const desc;
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};
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extern struct rp_errors rp_errors[];
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char *rp_strerror(int error);
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/*
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* Debug features
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*/
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#define DEBUG_NONE 0x0000
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#define DEBUG_PACKETS 0x0001
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#define DEBUG_SIMPLE 0x0002
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#define DEBUG_OPTIONS 0x0004
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#define DEBUG_ACCESS 0x0008
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struct debugs {
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int value;
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const char *const name;
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const char *const desc;
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};
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extern int debug;
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extern struct debugs debugs[];
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extern int packetdroppercentage;
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int debug_find(char *s);
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int debug_finds(char *s);
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const char *debug_show(int d);
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/*
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* Log routines
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*/
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#define DEBUG(s) tftp_log(LOG_DEBUG, "%s", s)
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extern int tftp_logtostdout;
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void tftp_openlog(const char *ident, int logopt, int facility);
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void tftp_closelog(void);
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void tftp_log(int priority, const char *message, ...) __printflike(2, 3);
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/*
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* Performance figures
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*/
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struct tftp_stats {
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size_t amount;
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int rollovers;
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uint32_t blocks;
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int retries;
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struct timeval tstart;
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struct timeval tstop;
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};
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void stats_init(struct tftp_stats *ts);
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void printstats(const char *direction, int verbose, struct tftp_stats *ts);
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