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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
* Copyright (C) 2015 Freie Universitรคt Berlin
*
* 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.
*/
/**
* @ingroup examples
* @{
*
* @file
* @brief Demonstrating the sending and receiving of UDP data over POSIX sockets.
*
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*
* @}
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "common.h"
#include "od.h"
#include "net/af.h"
#include "net/sock/udp.h"
#include "net/ipv6.h"
#include "thread.h"
#include "xtimer.h"
#ifdef MODULE_EMB6_SOCK_UDP
static char sock_inbuf[SOCK_INBUF_SIZE];
static bool server_running;
static sock_udp_t server_sock;
static char server_stack[THREAD_STACKSIZE_DEFAULT];
static void *_server_thread(void *args)
{
int res;
/* parse port */
uint16_t port = atoi(args);
const sock_udp_ep_t server_addr = { .family = AF_INET6,
.port = port };
if ((res = sock_udp_create(&server_sock, &server_addr, NULL, 0)) < 0) {
printf("Unable to open UDP server on port %" PRIu16 " (error code %d)\n",
port, -res);
return NULL;
}
server_running = true;
printf("Success: started UDP server on port %" PRIu16 "\n", port);
while (1) {
sock_udp_ep_t client_addr;
if ((res = sock_udp_recv(&server_sock, sock_inbuf, sizeof(sock_inbuf),
SOCK_NO_TIMEOUT, &client_addr)) < 0) {
puts("Error on receive");
}
else if (res == 0) {
puts("No data received");
}
else {
char addrstr[IPV6_ADDR_MAX_STR_LEN];
printf("Received from [%s]:%" PRIu16 ":\n",
ipv6_addr_to_str(addrstr, (ipv6_addr_t *)&client_addr.addr,
sizeof(addrstr)), client_addr.port);
od_hex_dump(sock_inbuf, res, 0);
}
}
return NULL;
}
static int udp_send(char *addr_str, char *port_str, char *data, unsigned int num,
unsigned int delay)
{
uint8_t byte_data[strlen(data) / 2];
sock_udp_ep_t dst = { .family = AF_INET6 };
size_t data_len;
/* parse destination address */
if (ipv6_addr_from_str((ipv6_addr_t *)&dst.addr, addr_str) == NULL) {
puts("Error: unable to parse destination address");
return 1;
}
/* parse port */
dst.port = atoi(port_str);
data_len = hex2ints(byte_data, data);
for (unsigned int i = 0; i < num; i++) {
if (sock_udp_send(NULL, byte_data, data_len, &dst) < 0) {
puts("could not send");
}
else {
printf("Success: send %u byte to [%s]:%" PRIu16 ")\n",
(unsigned)data_len, addr_str, dst.port);
}
xtimer_usleep(delay);
}
return 0;
}
static int udp_start_server(char *port_str)
{
if (thread_create(server_stack, sizeof(server_stack), THREAD_PRIORITY_MAIN - 1,
THREAD_CREATE_STACKTEST, _server_thread, port_str,
"UDP server") <= KERNEL_PID_UNDEF) {
return 1;
}
return 0;
}
int udp_cmd(int argc, char **argv)
{
if (argc < 2) {
printf("usage: %s [send|server]\n", argv[0]);
return 1;
}
if (strcmp(argv[1], "send") == 0) {
uint32_t num = 1;
uint32_t delay = 1000000;
if (argc < 5) {
printf("usage: %s send <addr> <port> <hex data> [<num> [<delay in us>]]\n",
argv[0]);
return 1;
}
if (argc > 5) {
num = atoi(argv[5]);
}
if (argc > 6) {
delay = atoi(argv[6]);
}
return udp_send(argv[2], argv[3], argv[4], num, delay);
}
else if (strcmp(argv[1], "server") == 0) {
if (argc < 3) {
printf("usage: %s server [start|stop]\n", argv[0]);
return 1;
}
if (strcmp(argv[2], "start") == 0) {
if (argc < 4) {
printf("usage %s server start <port>\n", argv[0]);
return 1;
}
return udp_start_server(argv[3]);
}
else {
puts("error: invalid command");
return 1;
}
}
else {
puts("error: invalid command");
return 1;
}
}
#else
typedef int dont_be_pedantic;
#endif
/** @} */
|