blob: 9e85ecf2b6c783f10d0d88a005100cc5d9c07a17 [file] [log] [blame]
Keith Burns (alagalah)b327c2b2017-10-09 08:52:59 -07001/*
2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16/*
17 * Copyright (c) 2005-2008 Jelmer Vernooij <jelmer@samba.org>
18 * Copyright (C) 2006-2014 Stefan Metzmacher <metze@samba.org>
19 * Copyright (C) 2013-2014 Andreas Schneider <asn@samba.org>
20 *
21 * All rights reserved.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 *
27 * 1. Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
29 *
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 *
34 * 3. Neither the name of the author nor the names of its contributors
35 * may be used to endorse or promote products derived from this software
36 * without specific prior written permission.
37 *
38 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
39 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
41 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
42 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
43 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
44 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
46 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
47 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 *
50 */
51
52/*
53 Socket wrapper library. Passes all socket communication over
54 unix domain sockets if the environment variable SOCKET_WRAPPER_DIR
55 is set.
56*/
57
58#ifndef included_vcom_socket_wrapper_h
59#define included_vcom_socket_wrapper_h
60
61#include <sys/types.h>
62#include <sys/socket.h>
63#include <sys/ioctl.h>
64#include <sys/select.h>
65#include <sys/epoll.h>
shrinivasan ganapathy1d359632017-10-15 15:46:09 -070066#include <poll.h>
Keith Burns (alagalah)b327c2b2017-10-09 08:52:59 -070067#include <sys/uio.h>
68#include <stdlib.h>
69
70
71/* GCC have printf type attribute check. */
72#ifdef HAVE_FUNCTION_ATTRIBUTE_FORMAT
73#define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
74#else
75#define PRINTF_ATTRIBUTE(a,b)
76#endif /* HAVE_FUNCTION_ATTRIBUTE_FORMAT */
77
78#define HAVE_CONSTRUCTOR_ATTRIBUTE
79#ifdef HAVE_CONSTRUCTOR_ATTRIBUTE
80#define CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
81#else
82#define CONSTRUCTOR_ATTRIBUTE
83#endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
84
85#define HAVE_DESTRUCTOR_ATTRIBUTE
86#ifdef HAVE_DESTRUCTOR_ATTRIBUTE
87#define DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor))
88#else
89#define DESTRUCTOR_ATTRIBUTE
90#endif
91
92#define HAVE_ADDRESS_SANITIZER_ATTRIBUTE
93#ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE
94#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE __attribute__((no_sanitize_address))
95#else
96#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE
97#endif
98
99/*
100 * IMPORTANT
101 *
102 * Functions especially from libc need to be loaded individually, you can't load
103 * all at once or gdb will segfault at startup. The same applies to valgrind and
104 * has probably something todo with with the linker.
105 * So we need load each function at the point it is called the first time.
106 */
107#ifdef HAVE_ACCEPT4
108int
109libc_accept4 (int sockfd,
110 struct sockaddr *addr, socklen_t * addrlen, int flags);
111#else /* HAVE_ACCEPT4 */
112int libc_accept (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
113#endif /* HAVE_ACCEPT4 */
114
115int libc_bind (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
116
117int libc_close (int fd);
118
119int libc_connect (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
120
121#if 0
122/* TBD: dup and dup2 to be implemented later */
123int libc_dup (int fd);
124
125int libc_dup2 (int oldfd, int newfd);
126#endif
127
128#ifdef HAVE_EVENTFD
129int libc_eventfd (int count, int flags);
130#endif
131
132DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
133libc_vfcntl (int fd, int cmd, va_list ap);
134
Stevenb59f2272017-10-12 17:10:33 -0700135DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
136libc_vioctl (int fd, int cmd, va_list ap);
137
Keith Burns (alagalah)b327c2b2017-10-09 08:52:59 -0700138int libc_getpeername (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
139
140int libc_getsockname (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
141
142int
143libc_getsockopt (int sockfd,
144 int level, int optname, void *optval, socklen_t * optlen);
145
146int libc_listen (int sockfd, int backlog);
147
148int libc_read (int fd, void *buf, size_t count);
149
150ssize_t libc_readv (int fd, const struct iovec *iov, int iovcnt);
151
152int libc_recv (int sockfd, void *buf, size_t len, int flags);
153
154int
155libc_recvfrom (int sockfd,
156 void *buf,
157 size_t len,
158 int flags, struct sockaddr *src_addr, socklen_t * addrlen);
159
160int libc_recvmsg (int sockfd, struct msghdr *msg, int flags);
161
162int libc_send (int sockfd, const void *buf, size_t len, int flags);
163
164int libc_sendmsg (int sockfd, const struct msghdr *msg, int flags);
165
166int
167libc_sendto (int sockfd,
168 const void *buf,
169 size_t len,
170 int flags, const struct sockaddr *dst_addr, socklen_t addrlen);
171
172int
173libc_setsockopt (int sockfd,
174 int level, int optname, const void *optval,
175 socklen_t optlen);
176
177int libc_socket (int domain, int type, int protocol);
178
179int libc_socketpair (int domain, int type, int protocol, int sv[2]);
180
181ssize_t libc_write (int fd, const void *buf, size_t count);
182
183ssize_t libc_writev (int fd, const struct iovec *iov, int iovcnt);
184
185int libc_shutdown (int fd, int how);
186
187int
188libc_select (int __nfds, fd_set * __restrict __readfds,
189 fd_set * __restrict __writefds,
190 fd_set * __restrict __exceptfds,
191 struct timeval *__restrict __timeout);
192
193#ifdef __USE_XOPEN2K
194int
195libc_pselect (int __nfds, fd_set * __restrict __readfds,
196 fd_set * __restrict __writefds,
197 fd_set * __restrict __exceptfds,
198 const struct timespec *__restrict __timeout,
199 const __sigset_t * __restrict __sigmask);
200#endif
201
202int libc_epoll_create (int __size);
203
204int libc_epoll_create1 (int __flags);
205
206int libc_epoll_ctl (int __epfd, int __op, int __fd,
207 struct epoll_event *__event);
208
209int libc_epoll_wait (int __epfd, struct epoll_event *__events,
210 int __maxevents, int __timeout);
211
212int libc_epoll_pwait (int __epfd, struct epoll_event *__events,
213 int __maxevents, int __timeout,
214 const __sigset_t * __ss);
215
shrinivasan ganapathy1d359632017-10-15 15:46:09 -0700216int libc_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
217
218#ifdef __USE_GNU
219int libc_ppoll (struct pollfd *__fds, nfds_t __nfds,
220 const struct timespec *__timeout, const __sigset_t * __ss);
221#endif
222
Keith Burns (alagalah)b327c2b2017-10-09 08:52:59 -0700223void swrap_constructor (void);
224
225void swrap_destructor (void);
226
227#endif /* included_vcom_socket_wrapper_h */
228
229/*
230 * fd.io coding-style-patch-verification: ON
231 *
232 * Local Variables:
233 * eval: (c-set-style "gnu")
234 * End:
235 */