OpenVPN
mss.h
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1 /*
2  * OpenVPN -- An application to securely tunnel IP networks
3  * over a single TCP/UDP port, with support for SSL/TLS-based
4  * session authentication and key exchange,
5  * packet encryption, packet authentication, and
6  * packet compression.
7  *
8  * Copyright (C) 2002-2022 OpenVPN Inc <sales@openvpn.net>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2
12  * as published by the Free Software Foundation.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License along
20  * with this program; if not, write to the Free Software Foundation, Inc.,
21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22  */
23 
24 #ifndef MSS_H
25 #define MSS_H
26 
27 #include "proto.h"
28 #include "error.h"
29 #include "mtu.h"
30 #include "ssl_common.h"
31 
32 void mss_fixup_ipv4(struct buffer *buf, int maxmss);
33 
34 void mss_fixup_ipv6(struct buffer *buf, int maxmss);
35 
36 void mss_fixup_dowork(struct buffer *buf, uint16_t maxmss);
37 
39 void frame_calculate_dynamic(struct frame *frame, struct key_type *kt,
40  const struct options *options,
41  struct link_socket_info *lsi);
42 
48 void frame_adjust_path_mtu(struct context *c);
49 
50 #endif /* ifndef MSS_H */
error.h
context
Contains all state information for one tunnel.
Definition: openvpn.h:467
frame
Packet geometry parameters.
Definition: mtu.h:93
mss_fixup_dowork
void mss_fixup_dowork(struct buffer *buf, uint16_t maxmss)
Definition: mss.c:146
mtu.h
frame_adjust_path_mtu
void frame_adjust_path_mtu(struct context *c)
Checks and adjusts the fragment and mssfix value according to the discovered path mtu value.
Definition: mss.c:356
proto.h
options
Definition: options.h:232
buffer
Wrapper structure for dynamically allocated memory.
Definition: buffer.h:60
key_type
Definition: crypto.h:139
mss_fixup_ipv6
void mss_fixup_ipv6(struct buffer *buf, int maxmss)
Definition: mss.c:89
frame_calculate_dynamic
void frame_calculate_dynamic(struct frame *frame, struct key_type *kt, const struct options *options, struct link_socket_info *lsi)
Set the –mssfix option.
Definition: mss.c:336
mss_fixup_ipv4
void mss_fixup_ipv4(struct buffer *buf, int maxmss)
Definition: mss.c:49
ssl_common.h