diff options
Diffstat (limited to 'vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h')
| -rw-r--r-- | vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h b/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h new file mode 100644 index 0000000..e3590d6 --- /dev/null +++ b/vcl-ldpreload/src/libvcl-ldpreload/vcom_socket_wrapper.h @@ -0,0 +1,205 @@ +/* + * Copyright (c) 2017 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_vcom_socket_wrapper_h +#define included_vcom_socket_wrapper_h + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <sys/select.h> +#include <sys/uio.h> +#include <stdlib.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 + +#define HAVE_ADDRESS_SANITIZER_ATTRIBUTE +#ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE +#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE __attribute__((no_sanitize_address)) +#else +#define DO_NOT_SANITIZE_ADDRESS_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. + */ +#ifdef HAVE_ACCEPT4 +int +libc_accept4 (int sockfd, + struct sockaddr *addr, socklen_t * addrlen, int flags); +#else /* HAVE_ACCEPT4 */ +int libc_accept (int sockfd, struct sockaddr *addr, socklen_t * addrlen); +#endif /* HAVE_ACCEPT4 */ + +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 + +DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE int +libc_vfcntl (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); + +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); + +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); + +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 + +void swrap_constructor (void); + +void swrap_destructor (void); + +#endif /* included_vcom_socket_wrapper_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |