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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (c) 2005-2008 Jelmer Vernooij <jelmer@samba.org>
* Copyright (C) 2006-2014 Stefan Metzmacher <metze@samba.org>
* Copyright (C) 2013-2014 Andreas Schneider <asn@samba.org>
*
* 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.
*
* 3. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
*/
/*
Socket wrapper library. Passes all socket communication over
unix domain sockets if the environment variable SOCKET_WRAPPER_DIR
is set.
*/
#ifndef included_ldp_socket_wrapper_h
#define included_ldp_socket_wrapper_h
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/epoll.h>
#include <poll.h>
#include <sys/uio.h>
#include <stdlib.h>
#include <vcl/ldp.h>
/* GCC have printf type attribute check. */
#ifdef HAVE_FUNCTION_ATTRIBUTE_FORMAT
#define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
#else
#define PRINTF_ATTRIBUTE(a,b)
#endif /* HAVE_FUNCTION_ATTRIBUTE_FORMAT */
#define HAVE_CONSTRUCTOR_ATTRIBUTE
#ifdef HAVE_CONSTRUCTOR_ATTRIBUTE
#define CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
#else
#define CONSTRUCTOR_ATTRIBUTE
#endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
#define HAVE_DESTRUCTOR_ATTRIBUTE
#ifdef HAVE_DESTRUCTOR_ATTRIBUTE
#define DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor))
#else
#define DESTRUCTOR_ATTRIBUTE
#endif
/*
* IMPORTANT
*
* Functions especially from libc need to be loaded individually, you can't load
* all at once or gdb will segfault at startup. The same applies to valgrind and
* has probably something todo with with the linker.
* So we need load each function at the point it is called the first time.
*/
int libc_accept4 (int sockfd, struct sockaddr *addr, socklen_t * addrlen,
int flags);
int libc_accept (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
int libc_bind (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
int libc_close (int fd);
int libc_connect (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
#if 0
/* TBD: dup and dup2 to be implemented later */
int libc_dup (int fd);
int libc_dup2 (int oldfd, int newfd);
#endif
#ifdef HAVE_EVENTFD
int libc_eventfd (int count, int flags);
#endif
int libc_vfcntl (int fd, int cmd, va_list ap);
int libc_vfcntl64 (int fd, int cmd, va_list ap);
int libc_vioctl (int fd, int cmd, va_list ap);
int libc_getpeername (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
int libc_getsockname (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
int
libc_getsockopt (int sockfd,
int level, int optname, void *optval, socklen_t * optlen);
int libc_listen (int sockfd, int backlog);
int libc_read (int fd, void *buf, size_t count);
ssize_t libc_readv (int fd, const struct iovec *iov, int iovcnt);
int libc_recv (int sockfd, void *buf, size_t len, int flags);
int
libc_recvfrom (int sockfd,
void *buf,
size_t len,
int flags, struct sockaddr *src_addr, socklen_t * addrlen);
int libc_recvmsg (int sockfd, struct msghdr *msg, int flags);
int libc_send (int sockfd, const void *buf, size_t len, int flags);
ssize_t libc_sendfile (int out_fd, int in_fd, off_t * offset, size_t len);
int libc_sendmsg (int sockfd, const struct msghdr *msg, int flags);
int
libc_sendto (int sockfd,
const void *buf,
size_t len,
int flags, const struct sockaddr *dst_addr, socklen_t addrlen);
int
libc_setsockopt (int sockfd,
int level, int optname, const void *optval,
socklen_t optlen);
int libc_socket (int domain, int type, int protocol);
int libc_socketpair (int domain, int type, int protocol, int sv[2]);
ssize_t libc_write (int fd, const void *buf, size_t count);
ssize_t libc_writev (int fd, const struct iovec *iov, int iovcnt);
int libc_shutdown (int fd, int how);
int
libc_select (int __nfds, fd_set * __restrict __readfds,
fd_set * __restrict __writefds,
fd_set * __restrict __exceptfds,
struct timeval *__restrict __timeout);
#ifdef __USE_XOPEN2K
int
libc_pselect (int __nfds, fd_set * __restrict __readfds,
fd_set * __restrict __writefds,
fd_set * __restrict __exceptfds,
const struct timespec *__restrict __timeout,
const __sigset_t * __restrict __sigmask);
#endif
int libc_epoll_create (int __size);
int libc_epoll_create1 (int __flags);
int libc_epoll_ctl (int __epfd, int __op, int __fd,
struct epoll_event *__event);
int libc_epoll_wait (int __epfd, struct epoll_event *__events,
int __maxevents, int __timeout);
int libc_epoll_pwait (int __epfd, struct epoll_event *__events,
int __maxevents, int __timeout,
const __sigset_t * __ss);
int libc_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
#ifdef __USE_GNU
int libc_ppoll (struct pollfd *__fds, nfds_t __nfds,
const struct timespec *__timeout, const __sigset_t * __ss);
#endif
void swrap_constructor (void);
void swrap_destructor (void);
#endif /* included_ldp_socket_wrapper_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
