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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
Copyright (c) 2012, Matthias Schiffer <mschiffer@universe-factory.net>
Partly based on QuickTun Copyright (c) 2010, Ivo Smits <Ivo@UCIS.nl>.
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 THE COPYRIGHT HOLDERS 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 THE COPYRIGHT HOLDER 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.
*/
#ifndef _FASTD_FASTD_H_
#define _FASTD_FASTD_H_
#include <errno.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
typedef enum _fastd_loglevel {
LOG_FATAL = 0,
LOG_ERROR,
LOG_WARN,
LOG_INFO,
LOG_DEBUG,
} fastd_loglevel;
typedef enum _fastd_protocol {
PROTOCOL_ETHERNET,
PROTOCOL_IP,
} fastd_protocol;
typedef struct _fastd_peer_config {
struct _fastd_peer_config *next;
} fastd_peer_config;
typedef struct _fastd_peer_state {
struct _fastd_peer_state *next;
const fastd_peer_config *config;
} fastd_peer_state;
typedef struct _fastd_context fastd_context;
typedef struct _fastd_method {
const char *name;
void (*method_init)(const fastd_context *ctx);
void (*method_recv)(const fastd_context *ctx, void *buffer, size_t len);
void (*method_send)(const fastd_context *ctx, void *buffer, size_t len);
} fastd_method;
typedef struct _fastd_config {
fastd_loglevel loglevel;
uint16_t mtu;
fastd_protocol protocol;
fastd_method *method;
unsigned n_peers;
fastd_peer_config *peers;
} fastd_config;
struct _fastd_context {
const fastd_config *conf;
};
#define pr_log(context, level, args...) if ((context)->conf == NULL || (level) <= (context)->conf->loglevel) do { fprintf(stderr, args); fputs("\n", stderr); } while(0)
#define pr_fatal(context, args...) pr_log(context, LOG_FATAL, args)
#define pr_error(context, args...) pr_log(context, LOG_ERROR, args)
#define pr_warn(context, args...) pr_log(context, LOG_WARN, args)
#define pr_info(context, args...) pr_log(context, LOG_INFO, args)
#define pr_debug(context, args...) pr_log(context, LOG_DEBUG, args)
#define exit_fatal(context, args...) do { pr_fatal(context, args); exit(1); } while(0)
#define exit_fatal_bug(context, message) exit_fatal(context, "BUG: %s", message)
#define exit_fatal_errno(context, message) exit_fatal(context, "%s: %s", message, strerror(errno))
#endif /* _FASTD_FASTD_H_ */
|
