1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/*
* Copyright 2013 Google Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/*
* Author: ncardwell@google.com (Neal Cardwell)
*
* Interface for module for formatting GRE packets.
*/
#ifndef __GRE_PACKET_H__
#define __GRE_PACKET_H__
#include "types.h"
#include "packet.h"
/* Append a GRE header to the end of the given packet. On success,
* return STATUS_OK; on error return STATUS_ERR and fill in a
* malloc-allocated error message in *error.
*/
extern int gre_header_append(struct packet *packet,
const struct gre *gre, char **error);
/* Finalize the GRE header by filling in all necessary fields that
* were not filled in at parse time.
*/
extern int gre_header_finish(struct packet *packet,
struct header *header, struct header *next_inner);
#endif /* __GRE_PACKET_H__ */
|
