4 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
21 #include <attr/xattr.h>
27 , m_sock_type(SOCK_STREAM)
28 , m_send_flags(MSG_NOSIGNAL)
29 , m_recv_flags(MSG_NOSIGNAL)
31 memset(&m_addr, 0, sizeof(m_addr));
35 csocket::csocket(int sock_fd)
36 : m_send_flags(MSG_NOSIGNAL)
37 , m_recv_flags(MSG_NOSIGNAL)
41 memset(&m_addr, 0, sizeof(m_addr));
45 csocket::csocket(const csocket &sock)
50 m_sock_fd = sock.m_sock_fd;
51 m_sock_type = sock.m_sock_type;
52 m_send_flags = sock.m_send_flags;
53 m_recv_flags = sock.m_recv_flags;
55 memcpy(&m_addr, &sock.m_addr, sizeof(sockaddr_un));
58 csocket::~csocket() { }
60 bool csocket::create(int sock_type)
62 m_sock_fd = socket(AF_UNIX, sock_type, 0);
65 ERR("Failed to create socket for %s, errno : %d , errstr : %s ",
66 get_client_name(), errno, strerror(errno));
70 m_sock_type = sock_type;
75 bool csocket::bind (const char *sock_path)
81 ERR("%s's socket is invalid", get_client_name());
85 if((fsetxattr(m_sock_fd, "security.SMACK64IPOUT", "@", 2, 0)) < 0) {
86 if(errno != EOPNOTSUPP) {
88 ERR("security.SMACK64IPOUT error = [%d][%s]\n", errno, strerror(errno) );
93 if((fsetxattr(m_sock_fd, "security.SMACK64IPIN", "*", 2, 0)) < 0) {
94 if(errno != EOPNOTSUPP) {
96 ERR("security.SMACK64IPIN error = [%d][%s]\n", errno, strerror(errno) );
101 if (!access(sock_path, F_OK)) {
105 m_addr.sun_family = AF_UNIX;
106 strcpy(m_addr.sun_path, sock_path);
108 length = strlen(m_addr.sun_path) + sizeof(m_addr.sun_family);
110 if (::bind(m_sock_fd, (struct sockaddr *)&m_addr, length) < 0) {
111 ERR("Binding failed for socket(%d), errno : %d , errstr : %s", m_sock_fd, errno, strerror(errno));
116 socket_mode = ( S_IRWXU | S_IRWXG | S_IRWXO );
117 if (chmod(sock_path, socket_mode) < 0) {
118 ERR("chmod failed for socket(%d), errno : %d , errstr : %s", m_sock_fd, errno, strerror(errno));
126 bool csocket::listen(const int max_connections)
129 ERR("Socket(%d) is invalid", m_sock_fd);
133 if (::listen(m_sock_fd, max_connections) < 0) {
134 ERR("Listening failed for socket(%d), errno : %d , errstr : %s", m_sock_fd, errno, strerror(errno));
142 bool csocket::accept(csocket& client_socket) const
144 int addr_length = sizeof(m_addr);
148 client_socket.m_sock_fd = ::accept(m_sock_fd, (sockaddr *)&m_addr, (socklen_t *)&addr_length);
149 if (!client_socket.is_valid())
151 } while (err == EINTR);
153 if (!client_socket.is_valid()) {
154 ERR("Accept failed for socket(%d), errno : %d , errstr : %s", m_sock_fd, errno, strerror(errno));
161 ssize_t csocket::send_for_seqpacket(void const* buffer, size_t size) const
166 len = ::send(m_sock_fd, buffer, size, m_send_flags);
167 err = len < 0 ? errno : 0;
168 } while (err == EINTR);
171 ERR("send(%d, 0x%x, %d, 0x%x) = %d cause = %s(%d)",
172 m_sock_fd, buffer, size, m_send_flags, len, strerror(errno), errno);
175 return err == 0 ? len : -err;
178 ssize_t csocket::recv_for_seqpacket(void* buffer, size_t size) const
183 len = ::recv(m_sock_fd, buffer, size, m_recv_flags);
187 } else if (len == 0) {
188 ERR("recv(%d, 0x%p , %d) = %d, because the peer performed shutdown!",
189 m_sock_fd, buffer, size, len);
194 } while (err == EINTR);
196 if ((err == EAGAIN) || (err == EWOULDBLOCK)) {
197 DBG("recv(%d, 0x%x, %d, 0x%x) = %d cause = %s(%d)",
198 m_sock_fd, buffer, size, m_recv_flags, len, strerror(errno), errno);
203 ERR("recv(%d, 0x%x, %d, 0x%x) = %d cause = %s(%d)",
204 m_sock_fd, buffer, size, m_recv_flags, len, strerror(errno), errno);
207 return err == 0 ? len : -err;
211 ssize_t csocket::send_for_stream(void const* buffer, size_t size) const
215 size_t total_sent_size = 0;
218 len = ::send(m_sock_fd, buffer + total_sent_size, size - total_sent_size, m_send_flags);
221 total_sent_size += len;
224 ERR("send(%d, 0x%p + %d, %d - %d) = %d, error: %s(%d) for %s",
225 m_sock_fd, buffer, total_sent_size, size, total_sent_size,
226 len, strerror(errno), errno, get_client_name());
228 if (errno != EINTR) {
233 } while (total_sent_size < size);
235 return err == 0 ? total_sent_size : -err;
238 ssize_t csocket::recv_for_stream(void* buffer, size_t size) const
242 size_t total_recv_size = 0;
245 len = ::recv(m_sock_fd, buffer + total_recv_size, size - total_recv_size, m_recv_flags);
248 total_recv_size += len;
249 } else if (len == 0) {
250 ERR("recv(%d, 0x%p + %d, %d - %d) = %d, because the peer of %s performed shutdown!",
251 m_sock_fd, buffer, total_recv_size, size, total_recv_size, len, get_client_name());
255 ERR("recv(%d, 0x%p + %d, %d - %d) = %d, error: %s(%d) for %s",
256 m_sock_fd, buffer, total_recv_size, size, total_recv_size,
257 len, strerror(errno), errno, get_client_name());
259 if (errno != EINTR) {
264 } while (total_recv_size < size);
266 return err == 0 ? total_recv_size : -err;
270 ssize_t csocket::send(void const* buffer, size_t size) const
272 if (m_sock_type == SOCK_STREAM)
273 return send_for_stream(buffer, size);
275 return send_for_seqpacket(buffer, size);
278 ssize_t csocket::recv(void* buffer, size_t size) const
280 if (m_sock_type == SOCK_STREAM)
281 return recv_for_stream(buffer, size);
283 return recv_for_seqpacket(buffer, size);
286 bool csocket::connect(const char *sock_path)
288 const int TIMEOUT = 5;
292 bool prev_blocking_mode;
295 ERR("%s's socket is invalid", get_client_name());
299 prev_blocking_mode = is_blocking_mode();
301 set_blocking_mode(false);
303 m_addr.sun_family = AF_UNIX;
304 strcpy(m_addr.sun_path, sock_path);
305 addr_len = strlen(m_addr.sun_path) + sizeof(m_addr.sun_family);
307 if (::connect(m_sock_fd,(sockaddr *) &m_addr, addr_len) < 0) {
308 ERR("connect error: %s sock_fd: %d\n for %s", strerror(errno), m_sock_fd, get_client_name());
313 FD_SET(m_sock_fd, &write_fds);
319 ret = select(m_sock_fd + 1, NULL, &write_fds, NULL, &tv);
322 ERR("select error: %s sock_fd: %d\n for %s", strerror(errno), m_sock_fd, get_client_name());
326 ERR("select timeout: %d seconds elapsed for %s", tv.tv_sec, get_client_name());
331 if (!FD_ISSET(m_sock_fd, &write_fds)) {
332 ERR("select failed for %s, nothing to write, m_sock_fd : %d", get_client_name(), m_sock_fd);
338 socklen_t len = sizeof(so_error);
340 if (getsockopt(m_sock_fd, SOL_SOCKET, SO_ERROR, &so_error, &len) == -1) {
341 ERR("getsockopt failed for %s, m_sock_fd : %d, errno : %d , errstr : %s",
342 get_client_name(), m_sock_fd, errno, strerror(errno));
348 ERR("SO_ERROR occurred for %s, m_sock_fd : %d, so_error : %d",
349 get_client_name(), m_sock_fd, so_error);
354 if (prev_blocking_mode)
355 set_blocking_mode(true);
360 bool csocket::set_blocking_mode(bool blocking)
364 flags = fcntl(m_sock_fd, F_GETFL);
367 ERR("fcntl(F_GETFL) failed for %s, m_sock_fd: %d, errno : %d , errstr : %s", get_client_name(), m_sock_fd, errno, strerror(errno));
371 flags = blocking ? (flags & ~O_NONBLOCK) : (flags | O_NONBLOCK);
373 flags = fcntl(m_sock_fd, F_SETFL, flags);
376 ERR("fcntl(F_SETFL) failed for %s, m_sock_fd: %d, errno : %d , errstr : %s", get_client_name(), m_sock_fd, errno, strerror(errno));
384 bool csocket::set_sock_type(void)
389 opt_len = sizeof(sock_type);
391 if (getsockopt(m_sock_fd, SOL_SOCKET, SO_TYPE, &sock_type, &opt_len) < 0) {
392 ERR("getsockopt(SOL_SOCKET, SO_TYPE) failed for %s, m_sock_fd: %d, errno : %d , errstr : %s", get_client_name(), m_sock_fd, errno, strerror(errno));
396 m_sock_type = sock_type;
400 bool csocket::set_connection_mode(void)
403 const int TIMEOUT = 5;
405 set_blocking_mode(true);
410 if(setsockopt(m_sock_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
411 ERR("Set SO_RCVTIMEO failed for %s, m_sock_fd : %d, errno : %d , errstr : %s",
412 get_client_name(), m_sock_fd, errno, strerror(errno));
417 m_send_flags = MSG_NOSIGNAL;
418 m_recv_flags = MSG_NOSIGNAL;
423 bool csocket::set_transfer_mode(void)
425 set_blocking_mode(false);
428 m_send_flags = MSG_DONTWAIT | MSG_NOSIGNAL;
429 m_recv_flags = MSG_DONTWAIT | MSG_NOSIGNAL;
434 bool csocket::is_blocking_mode(void)
438 flags = fcntl(m_sock_fd, F_GETFL);
441 ERR("fcntl(F_GETFL) failed for %s, m_sock_fd: %d, errno : %d , errstr : %s", get_client_name(), m_sock_fd, errno, strerror(errno));
445 return !(flags & O_NONBLOCK);
449 bool csocket::is_valid(void) const
451 return (m_sock_fd >= 0);
454 int csocket::get_socket_fd(void) const
459 bool csocket::close(void)
461 if (m_sock_fd >= 0) {
462 if (::close(m_sock_fd) < 0) {
463 ERR("Socket(%d) close failed, errno : %d , errstr : %s", m_sock_fd, errno, strerror(errno));