a752c7ab
 elopes
add first test an...
|
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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
* Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @{
*
* @file
*/
#include <errno.h>
#include <string.h>
#include "assert.h"
#include "utlist.h"
#include "net/gnrc/netreg.h"
#include "net/gnrc/nettype.h"
#include "net/gnrc/pkt.h"
#include "net/gnrc/icmpv6.h"
#include "net/gnrc/ipv6.h"
#include "net/gnrc/udp.h"
#include "net/gnrc/tcp.h"
#define _INVALID_TYPE(type) (((type) < GNRC_NETTYPE_UNDEF) || ((type) >= GNRC_NETTYPE_NUMOF))
/* The registry as lookup table by gnrc_nettype_t */
static gnrc_netreg_entry_t *netreg[GNRC_NETTYPE_NUMOF];
void gnrc_netreg_init(void)
{
/* set all pointers in registry to NULL */
memset(netreg, 0, GNRC_NETTYPE_NUMOF * sizeof(gnrc_netreg_entry_t *));
}
int gnrc_netreg_register(gnrc_nettype_t type, gnrc_netreg_entry_t *entry)
{
#if defined(MODULE_GNRC_NETAPI_MBOX) || defined(MODULE_GNRC_NETAPI_CALLBACKS)
#ifdef DEVELHELP
/* only threads with a message queue are allowed to register at gnrc */
assert((entry->type != GNRC_NETREG_TYPE_DEFAULT) ||
sched_threads[entry->target.pid]->msg_array);
#endif
#else
/* only threads with a message queue are allowed to register at gnrc */
assert(sched_threads[entry->target.pid]->msg_array);
#endif
if (_INVALID_TYPE(type)) {
return -EINVAL;
}
LL_PREPEND(netreg[type], entry);
return 0;
}
void gnrc_netreg_unregister(gnrc_nettype_t type, gnrc_netreg_entry_t *entry)
{
if (_INVALID_TYPE(type)) {
return;
}
LL_DELETE(netreg[type], entry);
}
gnrc_netreg_entry_t *gnrc_netreg_lookup(gnrc_nettype_t type, uint32_t demux_ctx)
{
gnrc_netreg_entry_t *res;
if (_INVALID_TYPE(type)) {
return NULL;
}
LL_SEARCH_SCALAR(netreg[type], res, demux_ctx, demux_ctx);
return res;
}
int gnrc_netreg_num(gnrc_nettype_t type, uint32_t demux_ctx)
{
int num = 0;
gnrc_netreg_entry_t *entry;
if (_INVALID_TYPE(type)) {
return 0;
}
entry = netreg[type];
while (entry != NULL) {
if (entry->demux_ctx == demux_ctx) {
num++;
}
entry = entry->next;
}
return num;
}
gnrc_netreg_entry_t *gnrc_netreg_getnext(gnrc_netreg_entry_t *entry)
{
uint32_t demux_ctx;
if (entry == NULL) {
return NULL;
}
demux_ctx = entry->demux_ctx;
LL_SEARCH_SCALAR(entry->next, entry, demux_ctx, demux_ctx);
return entry;
}
int gnrc_netreg_calc_csum(gnrc_pktsnip_t *hdr, gnrc_pktsnip_t *pseudo_hdr)
{
if (pseudo_hdr == NULL) {
/* XXX: Might be allowed for future checksums.
* If this is the case: move this to the branches were it
* is needed. */
return -EINVAL;
}
switch (hdr->type) {
#ifdef MODULE_GNRC_ICMPV6
case GNRC_NETTYPE_ICMPV6:
return gnrc_icmpv6_calc_csum(hdr, pseudo_hdr);
#endif
#ifdef MODULE_GNRC_TCP
case GNRC_NETTYPE_TCP:
return gnrc_tcp_calc_csum(hdr, pseudo_hdr);
#endif
#ifdef MODULE_GNRC_UDP
case GNRC_NETTYPE_UDP:
return gnrc_udp_calc_csum(hdr, pseudo_hdr);
#endif
default:
return -ENOENT;
}
}
/** @} */
|