2 * Copyright (c) 2017-2019 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.
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35 * may be used to endorse or promote products derived from this software
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41 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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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_ldp_socket_wrapper_h
59 #define included_ldp_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>
72 /* GCC have printf type attribute check. */
73 #ifdef HAVE_FUNCTION_ATTRIBUTE_FORMAT
74 #define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b)))
76 #define PRINTF_ATTRIBUTE(a,b)
77 #endif /* HAVE_FUNCTION_ATTRIBUTE_FORMAT */
79 #define HAVE_CONSTRUCTOR_ATTRIBUTE
80 #ifdef HAVE_CONSTRUCTOR_ATTRIBUTE
81 #define CONSTRUCTOR_ATTRIBUTE __attribute__ ((constructor))
83 #define CONSTRUCTOR_ATTRIBUTE
84 #endif /* HAVE_CONSTRUCTOR_ATTRIBUTE */
86 #define HAVE_DESTRUCTOR_ATTRIBUTE
87 #ifdef HAVE_DESTRUCTOR_ATTRIBUTE
88 #define DESTRUCTOR_ATTRIBUTE __attribute__ ((destructor))
90 #define DESTRUCTOR_ATTRIBUTE
96 * Functions especially from libc need to be loaded individually, you can't load
97 * all at once or gdb will segfault at startup. The same applies to valgrind and
98 * has probably something todo with with the linker.
99 * So we need load each function at the point it is called the first time.
101 int libc_accept4 (int sockfd, struct sockaddr *addr, socklen_t * addrlen,
104 int libc_accept (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
106 int libc_bind (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
108 int libc_close (int fd);
110 int libc_connect (int sockfd, const struct sockaddr *addr, socklen_t addrlen);
113 /* TBD: dup and dup2 to be implemented later */
114 int libc_dup (int fd);
116 int libc_dup2 (int oldfd, int newfd);
120 int libc_eventfd (int count, int flags);
123 int libc_vfcntl (int fd, int cmd, va_list ap);
125 int libc_vfcntl64 (int fd, int cmd, va_list ap);
127 int libc_vioctl (int fd, int cmd, va_list ap);
129 int libc_getpeername (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
131 int libc_getsockname (int sockfd, struct sockaddr *addr, socklen_t * addrlen);
134 libc_getsockopt (int sockfd,
135 int level, int optname, void *optval, socklen_t * optlen);
137 int libc_listen (int sockfd, int backlog);
139 int libc_read (int fd, void *buf, size_t count);
141 ssize_t libc_readv (int fd, const struct iovec *iov, int iovcnt);
143 int libc_recv (int sockfd, void *buf, size_t len, int flags);
146 libc_recvfrom (int sockfd,
149 int flags, struct sockaddr *src_addr, socklen_t * addrlen);
151 int libc_recvmsg (int sockfd, struct msghdr *msg, int flags);
153 int libc_send (int sockfd, const void *buf, size_t len, int flags);
155 ssize_t libc_sendfile (int out_fd, int in_fd, off_t * offset, size_t len);
157 int libc_sendmsg (int sockfd, const struct msghdr *msg, int flags);
160 libc_sendto (int sockfd,
163 int flags, const struct sockaddr *dst_addr, socklen_t addrlen);
166 libc_setsockopt (int sockfd,
167 int level, int optname, const void *optval,
170 int libc_socket (int domain, int type, int protocol);
172 int libc_socketpair (int domain, int type, int protocol, int sv[2]);
174 ssize_t libc_write (int fd, const void *buf, size_t count);
176 ssize_t libc_writev (int fd, const struct iovec *iov, int iovcnt);
178 int libc_shutdown (int fd, int how);
181 libc_select (int __nfds, fd_set * __restrict __readfds,
182 fd_set * __restrict __writefds,
183 fd_set * __restrict __exceptfds,
184 struct timeval *__restrict __timeout);
188 libc_pselect (int __nfds, fd_set * __restrict __readfds,
189 fd_set * __restrict __writefds,
190 fd_set * __restrict __exceptfds,
191 const struct timespec *__restrict __timeout,
192 const __sigset_t * __restrict __sigmask);
195 int libc_epoll_create (int __size);
197 int libc_epoll_create1 (int __flags);
199 int libc_epoll_ctl (int __epfd, int __op, int __fd,
200 struct epoll_event *__event);
202 int libc_epoll_wait (int __epfd, struct epoll_event *__events,
203 int __maxevents, int __timeout);
205 int libc_epoll_pwait (int __epfd, struct epoll_event *__events,
206 int __maxevents, int __timeout,
207 const __sigset_t * __ss);
209 int libc_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
212 int libc_ppoll (struct pollfd *__fds, nfds_t __nfds,
213 const struct timespec *__timeout, const __sigset_t * __ss);
216 void swrap_constructor (void);
218 void swrap_destructor (void);
220 #endif /* included_ldp_socket_wrapper_h */
223 * fd.io coding-style-patch-verification: ON
226 * eval: (c-set-style "gnu")