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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/*
* SPDX license identifier: MPL-2.0
*
* Copyright (C) 2011-2015, BMW AG
*
* This file is part of GENIVI Project DLT - Diagnostic Log and Trace.
*
* This Source Code Form is subject to the terms of the
* Mozilla Public License (MPL), v. 2.0.
* If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* For further information see http://www.genivi.org/.
*/
/*!
* \author
* Alexander Wenzel <alexander.aw.wenzel@bmw.de>
* Markus Klein <Markus.Klein@esk.fraunhofer.de>
* Mikko Rapeli <mikko.rapeli@bmw.de>
*
* \copyright Copyright © 2011-2015 BMW AG. \n
* License MPL-2.0: Mozilla Public License version 2.0 http://mozilla.org/MPL/2.0/.
*
* \file dlt_daemon_socket.c
*/
#include <netdb.h>
#include <ctype.h>
#include <stdio.h> /* for printf() and fprintf() */
#include <sys/socket.h> /* for socket(), connect(), (), and recv() */
#include <arpa/inet.h> /* for sockaddr_in and inet_addr() */
#include <stdlib.h> /* for atoi() and exit() */
#include <string.h> /* for memset() */
#include <unistd.h> /* for close() */
#include <fcntl.h>
#include <signal.h>
#include <syslog.h>
#include <errno.h>
#include <pthread.h>
#include <sys/ioctl.h>
#ifdef linux
# include <sys/timerfd.h>
#endif
#include <sys/stat.h>
#include <sys/time.h>
#if defined(linux) && defined(__NR_statx)
# include <linux/stat.h>
#endif
#include "dlt_types.h"
#include "dlt-daemon.h"
#include "dlt-daemon_cfg.h"
#include "dlt_daemon_common_cfg.h"
#include "dlt_daemon_socket.h"
int dlt_daemon_socket_open(int *sock, unsigned int servPort, char *ip)
{
int yes = 1;
int ret_inet_pton = 1;
int lastErrno = 0;
#ifdef DLT_USE_IPv6
/* create socket */
if ((*sock = socket(AF_INET6, SOCK_STREAM, 0)) == -1) {
lastErrno = errno;
dlt_vlog(LOG_WARNING, "dlt_daemon_socket_open: socket() error %d: %s\n", lastErrno, strerror(lastErrno));
}
#else
if ((*sock = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
lastErrno = errno;
dlt_vlog(LOG_WARNING, "dlt_daemon_socket_open: socket() error %d: %s\n", lastErrno, strerror(lastErrno));
}
#endif
dlt_vlog(LOG_INFO, "%s: Socket created\n", __FUNCTION__);
/* setsockpt SO_REUSEADDR */
if (setsockopt(*sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1) {
lastErrno = errno;
dlt_vlog(LOG_WARNING,
"dlt_daemon_socket_open: Setsockopt error %d in dlt_daemon_local_connection_init: %s\n",
lastErrno,
strerror(lastErrno));
}
/* bind */
#ifdef DLT_USE_IPv6
struct sockaddr_in6 forced_addr;
memset(&forced_addr, 0, sizeof(forced_addr));
forced_addr.sin6_family = AF_INET6;
forced_addr.sin6_port = htons(servPort);
if (0 == strcmp(ip, "0.0.0.0"))
forced_addr.sin6_addr = in6addr_any;
else
ret_inet_pton = inet_pton(AF_INET6, ip, &forced_addr.sin6_addr);
#else
struct sockaddr_in forced_addr;
memset(&forced_addr, 0, sizeof(forced_addr));
forced_addr.sin_family = AF_INET;
forced_addr.sin_port = htons(servPort);
ret_inet_pton = inet_pton(AF_INET, ip, &forced_addr.sin_addr);
#endif
/* inet_pton returns 1 on success */
if (ret_inet_pton != 1) {
lastErrno = errno;
dlt_vlog(LOG_WARNING,
"dlt_daemon_socket_open: inet_pton() error %d: %s. Cannot convert IP address: %s\n",
lastErrno,
strerror(lastErrno),
ip);
return -1;
}
if (bind(*sock, (struct sockaddr *)&forced_addr, sizeof(forced_addr)) == -1) {
lastErrno = errno; /*close() may set errno too */
close(*sock);
dlt_vlog(LOG_WARNING, "dlt_daemon_socket_open: bind() error %d: %s\n", lastErrno, strerror(lastErrno));
return -1;
}
/*listen */
dlt_vlog(LOG_INFO, "%s: Listening on ip %s and port: %u\n", __FUNCTION__, ip, servPort);
/* get socket buffer size */
dlt_vlog(LOG_INFO, "dlt_daemon_socket_open: Socket send queue size: %d\n",
dlt_daemon_socket_get_send_qeue_max_size(*sock));
if (listen(*sock, 3) < 0) {
lastErrno = errno;
dlt_vlog(LOG_WARNING, "dlt_daemon_socket_open: listen() failed with error %d: %s\n", lastErrno,
strerror(lastErrno));
return -1;
}
return 0; /* OK */
}
int dlt_daemon_socket_close(int sock)
{
close(sock);
return 0;
}
int dlt_daemon_socket_send(int sock, void *data1, int size1, void *data2, int size2, char serialheader)
{
int ret = DLT_RETURN_OK;
/* Optional: Send serial header, if requested */
if (serialheader) {
ret = dlt_daemon_socket_sendreliable(sock,
(void *)dltSerialHeader,
sizeof(dltSerialHeader));
if (ret != DLT_RETURN_OK)
return ret;
}
/* Send data */
if ((data1 != NULL) && (size1 > 0)) {
ret = dlt_daemon_socket_sendreliable(sock, data1, size1);
if (ret != DLT_RETURN_OK)
return ret;
}
if ((data2 != NULL) && (size2 > 0))
ret = dlt_daemon_socket_sendreliable(sock, data2, size2);
return ret;
}
int dlt_daemon_socket_get_send_qeue_max_size(int sock)
{
int n = 0;
socklen_t m = sizeof(n);
getsockopt(sock, SOL_SOCKET, SO_SNDBUF, (void *)&n, &m);
return n;
}
int dlt_daemon_socket_sendreliable(int sock, void *data_buffer, int message_size)
{
int data_sent = 0;
while (data_sent < message_size) {
ssize_t ret = send(sock, (char *)data_buffer + data_sent, message_size - data_sent, 0);
if (ret < 0) {
dlt_vlog(LOG_WARNING,
"dlt_daemon_socket_sendreliable: socket send failed [errno: %d]!\n",
errno);
return DLT_DAEMON_ERROR_SEND_FAILED;
}
else {
data_sent += ret;
}
}
return DLT_DAEMON_ERROR_OK;
}
|
