freebsd-dev/libexec/tftpd/tftp-options.h
John Baldwin fdf929ff91 Add support for the TFTP windowsize option described in RFC 7440.
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
2020-03-02 22:19:30 +00:00

67 lines
2.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2008 Edwin Groothuis. 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.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Options
*/
void init_options(void);
uint16_t make_options(int peer, char *buffer, uint16_t size);
int parse_options(int peer, char *buffer, uint16_t size);
/* Call back functions */
int option_tsize(int peer, struct tftphdr *, int, struct stat *);
int option_timeout(int peer);
int option_blksize(int peer);
int option_blksize2(int peer);
int option_rollover(int peer);
int option_windowsize(int peer);
extern int options_extra_enabled;
extern int options_rfc_enabled;
struct options {
const char *o_type;
char *o_request;
char *o_reply;
int (*o_handler)(int peer);
int rfc;
};
extern struct options options[];
enum opt_enum {
OPT_TSIZE = 0,
OPT_TIMEOUT,
OPT_BLKSIZE,
OPT_BLKSIZE2,
OPT_ROLLOVER,
OPT_WINDOWSIZE,
};