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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
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>
21 * All rights reserved.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
27 * 1. Redistributions of source code must retain the above copyright
28 * notice, this list of conditions and the following disclaimer.
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.
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.
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
53 Socket wrapper library. Passes all socket communication over
54 unix domain sockets if the environment variable SOCKET_WRAPPER_DIR
58 #ifndef included_vcom_socket_wrapper_h
59 #define included_vcom_socket_wrapper_h
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>
70 /* GCC have printf type attribute check. */
71 #ifdef HAVE_FUNCTION_ATTRIBUTE_FORMAT
72 #define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
74 #define PRINTF_ATTRIBUTE(a,b)
75 #endif /* HAVE_FUNCTION_ATTRIBUTE_FORMAT */
77 #define HAVE_CONSTRUCTOR_ATTRIBUTE
78 #ifdef HAVE_CONSTRUCTOR_ATTRIBUTE
79 #define CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
81 #define CONSTRUCTOR_ATTRIBUTE
82 #endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
84 #define HAVE_DESTRUCTOR_ATTRIBUTE
85 #ifdef HAVE_DESTRUCTOR_ATTRIBUTE
86 #define DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor))
88 #define DESTRUCTOR_ATTRIBUTE
91 #define HAVE_ADDRESS_SANITIZER_ATTRIBUTE
92 #ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE
93 #define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE __attribute__((no_sanitize_address))
95 #define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE
101 * Functions especially from libc need to be loaded individually, you can't load
102 * all at once or gdb will segfault at startup. The same applies to valgrind and
103 * has probably something todo with with the linker.
104 * So we need load each function at the point it is called the first time.
108 libc_accept4 (int sockfd,
109 struct sockaddr *addr, socklen_t * addrlen, int flags);
110 #else /* HAVE_ACCEPT4 */
111 int libc_accept (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
112 #endif /* HAVE_ACCEPT4 */
114 int libc_bind (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
116 int libc_close (int fd);
118 int libc_connect (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
121 /* TBD: dup and dup2 to be implemented later */
122 int libc_dup (int fd);
124 int libc_dup2 (int oldfd, int newfd);
128 int libc_eventfd (int count, int flags);
131 DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
132 libc_vfcntl (int fd, int cmd, va_list ap);
134 DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int
135 libc_vioctl (int fd, int cmd, va_list ap);
137 int libc_getpeername (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
139 int libc_getsockname (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
142 libc_getsockopt (int sockfd,
143 int level, int optname, void *optval, socklen_t * optlen);
145 int libc_listen (int sockfd, int backlog);
147 int libc_read (int fd, void *buf, size_t count);
149 ssize_t libc_readv (int fd, const struct iovec *iov, int iovcnt);
151 int libc_recv (int sockfd, void *buf, size_t len, int flags);
154 libc_recvfrom (int sockfd,
157 int flags, struct sockaddr *src_addr, socklen_t * addrlen);
159 int libc_recvmsg (int sockfd, struct msghdr *msg, int flags);
161 int libc_send (int sockfd, const void *buf, size_t len, int flags);
163 int libc_sendmsg (int sockfd, const struct msghdr *msg, int flags);
166 libc_sendto (int sockfd,
169 int flags, const struct sockaddr *dst_addr, socklen_t addrlen);
172 libc_setsockopt (int sockfd,
173 int level, int optname, const void *optval,
176 int libc_socket (int domain, int type, int protocol);
178 int libc_socketpair (int domain, int type, int protocol, int sv[2]);
180 ssize_t libc_write (int fd, const void *buf, size_t count);
182 ssize_t libc_writev (int fd, const struct iovec *iov, int iovcnt);
184 int libc_shutdown (int fd, int how);
187 libc_select (int __nfds, fd_set * __restrict __readfds,
188 fd_set * __restrict __writefds,
189 fd_set * __restrict __exceptfds,
190 struct timeval *__restrict __timeout);
194 libc_pselect (int __nfds, fd_set * __restrict __readfds,
195 fd_set * __restrict __writefds,
196 fd_set * __restrict __exceptfds,
197 const struct timespec *__restrict __timeout,
198 const __sigset_t * __restrict __sigmask);
201 int libc_epoll_create (int __size);
203 int libc_epoll_create1 (int __flags);
205 int libc_epoll_ctl (int __epfd, int __op, int __fd,
206 struct epoll_event *__event);
208 int libc_epoll_wait (int __epfd, struct epoll_event *__events,
209 int __maxevents, int __timeout);
211 int libc_epoll_pwait (int __epfd, struct epoll_event *__events,
212 int __maxevents, int __timeout,
213 const __sigset_t * __ss);
215 void swrap_constructor (void);
217 void swrap_destructor (void);
219 #endif /* included_vcom_socket_wrapper_h */
222 * fd.io coding-style-patch-verification: ON
225 * eval: (c-set-style "gnu")