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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* Usurpataion --- server-client protocol private interface.
*
* Copyright (C) 2019 Ramūnas Mažeikis
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; version 2.1
* of the License.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifdef PROTOCOL_H_PRIVATE
#define PROTOCOL_H_PRIVATE
#define TLV_ARR_SIZE (16)
/* Pease don't rape the buffer with long messages, daemon-kun. */
#define MSG_BUF_SIZE (257)
/* UDP can carry bigger packets but memory is hard to come by and more won't be
* needed anyway.
* */
#define PACKET_MAX_SIZE (512)
/* Returns the amount of tlv's int a packet.
*
* If a tlv reports length that goes beyond the end of a packet, errno is set
* to TLV_OVERFLOW. To check this, set errno to 0 first.
* */
size_t tlv_count(const struct packet_data * const packet);
/* Parses a data packet, fills buffer of tlv's of size `buf_size` and returns
* the number of tlv's actually parsed.
*
* To check for errors, set errno to 0 and check after calling.
* */
size_t get_tlvs( const struct packet_data * const data,
const struct tlv *buf,
size_t buf_size);
/* Takes a null-terminated string and appends it to the next outgoing packet.
* */
void push_string(char *str);
void push_fpi1(fpi1_t num);
void push_timestamp(char *data);
void push_request(char *data);
void push_reply(char *data);
void push_uuid(char *data);
#endif /* PROTOCOL_H_PRIVATE */
|
