Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

features/netsocket/NetworkStack.cpp@1:3deb71413561, 2017-07-20 (annotated)

Committer:
xuaner
Date:
Thu Jul 20 14:26:57 2017 +0000
Revision:
1:3deb71413561
Parent:
0:f269e3021894 
mbed_os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /* Socket
elessair 0:f269e3021894 2 * Copyright (c) 2015 ARM Limited
elessair 0:f269e3021894 3 *
elessair 0:f269e3021894 4 * Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:f269e3021894 5 * you may not use this file except in compliance with the License.
elessair 0:f269e3021894 6 * You may obtain a copy of the License at
elessair 0:f269e3021894 7 *
elessair 0:f269e3021894 8 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:f269e3021894 9 *
elessair 0:f269e3021894 10 * Unless required by applicable law or agreed to in writing, software
elessair 0:f269e3021894 11 * distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:f269e3021894 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:f269e3021894 13 * See the License for the specific language governing permissions and
elessair 0:f269e3021894 14 * limitations under the License.
elessair 0:f269e3021894 15 */
elessair 0:f269e3021894 16
elessair 0:f269e3021894 17 #include "NetworkStack.h"
elessair 0:f269e3021894 18 #include "nsapi_dns.h"
elessair 0:f269e3021894 19 #include "mbed.h"
elessair 0:f269e3021894 20 #include "stddef.h"
elessair 0:f269e3021894 21 #include <new>
elessair 0:f269e3021894 22
elessair 0:f269e3021894 23
elessair 0:f269e3021894 24 // Default NetworkStack operations
elessair 0:f269e3021894 25 int NetworkStack::gethostbyname(const char *name, SocketAddress *address)
elessair 0:f269e3021894 26 {
elessair 0:f269e3021894 27 // check for simple ip addresses
elessair 0:f269e3021894 28 if (address->set_ip_address(name)) {
elessair 0:f269e3021894 29 return 0;
elessair 0:f269e3021894 30 }
elessair 0:f269e3021894 31
elessair 0:f269e3021894 32 return nsapi_dns_query(this, name, address);
elessair 0:f269e3021894 33 }
elessair 0:f269e3021894 34
elessair 0:f269e3021894 35 int NetworkStack::gethostbyname(const char *name, SocketAddress *address, nsapi_version_t version)
elessair 0:f269e3021894 36 {
elessair 0:f269e3021894 37 // check for simple ip addresses
elessair 0:f269e3021894 38 if (address->set_ip_address(name)) {
elessair 0:f269e3021894 39 if (address->get_ip_version() != version) {
elessair 0:f269e3021894 40 return NSAPI_ERROR_DNS_FAILURE;
elessair 0:f269e3021894 41 }
elessair 0:f269e3021894 42
elessair 0:f269e3021894 43 return 0;
elessair 0:f269e3021894 44 }
elessair 0:f269e3021894 45
elessair 0:f269e3021894 46 return nsapi_dns_query(this, name, address, version);
elessair 0:f269e3021894 47 }
elessair 0:f269e3021894 48
elessair 0:f269e3021894 49 int NetworkStack::add_dns_server(const SocketAddress &address)
elessair 0:f269e3021894 50 {
elessair 0:f269e3021894 51 return nsapi_dns_add_server(address);
elessair 0:f269e3021894 52 }
elessair 0:f269e3021894 53
elessair 0:f269e3021894 54 int NetworkStack::setstackopt(int level, int optname, const void *optval, unsigned optlen)
elessair 0:f269e3021894 55 {
elessair 0:f269e3021894 56 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 57 }
elessair 0:f269e3021894 58
elessair 0:f269e3021894 59 int NetworkStack::getstackopt(int level, int optname, void *optval, unsigned *optlen)
elessair 0:f269e3021894 60 {
elessair 0:f269e3021894 61 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 62 }
elessair 0:f269e3021894 63
elessair 0:f269e3021894 64 int NetworkStack::setsockopt(void *handle, int level, int optname, const void *optval, unsigned optlen)
elessair 0:f269e3021894 65 {
elessair 0:f269e3021894 66 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 67 }
elessair 0:f269e3021894 68
elessair 0:f269e3021894 69 int NetworkStack::getsockopt(void *handle, int level, int optname, void *optval, unsigned *optlen)
elessair 0:f269e3021894 70 {
elessair 0:f269e3021894 71 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 72 }
elessair 0:f269e3021894 73
elessair 0:f269e3021894 74
elessair 0:f269e3021894 75 // NetworkStackWrapper class for encapsulating the raw nsapi_stack structure
elessair 0:f269e3021894 76 class NetworkStackWrapper : public NetworkStack
elessair 0:f269e3021894 77 {
elessair 0:f269e3021894 78 private:
elessair 0:f269e3021894 79 inline nsapi_stack_t *_stack()
elessair 0:f269e3021894 80 {
elessair 0:f269e3021894 81 return reinterpret_cast<nsapi_stack_t *>(
elessair 0:f269e3021894 82 reinterpret_cast<uint8_t *>(this)
elessair 0:f269e3021894 83 - offsetof(nsapi_stack_t, _stack_buffer));
elessair 0:f269e3021894 84 }
elessair 0:f269e3021894 85
elessair 0:f269e3021894 86 inline const nsapi_stack_api_t *_stack_api()
elessair 0:f269e3021894 87 {
elessair 0:f269e3021894 88 return _stack()->stack_api;
elessair 0:f269e3021894 89 }
elessair 0:f269e3021894 90
elessair 0:f269e3021894 91 public:
elessair 0:f269e3021894 92 virtual const char *get_ip_address()
elessair 0:f269e3021894 93 {
elessair 0:f269e3021894 94 if (!_stack_api()->get_ip_address) {
elessair 0:f269e3021894 95 return 0;
elessair 0:f269e3021894 96 }
elessair 0:f269e3021894 97
elessair 0:f269e3021894 98 static uint8_t buffer[sizeof(SocketAddress)];
elessair 0:f269e3021894 99 SocketAddress *address = new (buffer) SocketAddress(_stack_api()->get_ip_address(_stack()));
elessair 0:f269e3021894 100 return address->get_ip_address();
elessair 0:f269e3021894 101 }
elessair 0:f269e3021894 102
elessair 0:f269e3021894 103 virtual int gethostbyname(const char *name, SocketAddress *address)
elessair 0:f269e3021894 104 {
elessair 0:f269e3021894 105 if (!_stack_api()->gethostbyname) {
elessair 0:f269e3021894 106 return NetworkStack::gethostbyname(name, address);
elessair 0:f269e3021894 107 }
elessair 0:f269e3021894 108
elessair 0:f269e3021894 109 nsapi_addr_t addr = {NSAPI_IPv4, 0};
elessair 0:f269e3021894 110 int err = _stack_api()->gethostbyname(_stack(), name, &addr, NSAPI_UNSPEC);
elessair 0:f269e3021894 111 address->set_addr(addr);
elessair 0:f269e3021894 112 return err;
elessair 0:f269e3021894 113 }
elessair 0:f269e3021894 114
elessair 0:f269e3021894 115 virtual int gethostbyname(const char *name, SocketAddress *address, nsapi_version_t version)
elessair 0:f269e3021894 116 {
elessair 0:f269e3021894 117 if (!_stack_api()->gethostbyname) {
elessair 0:f269e3021894 118 return NetworkStack::gethostbyname(name, address, version);
elessair 0:f269e3021894 119 }
elessair 0:f269e3021894 120
elessair 0:f269e3021894 121 nsapi_addr_t addr = {NSAPI_IPv4, 0};
elessair 0:f269e3021894 122 int err = _stack_api()->gethostbyname(_stack(), name, &addr, version);
elessair 0:f269e3021894 123 address->set_addr(addr);
elessair 0:f269e3021894 124 return err;
elessair 0:f269e3021894 125 }
elessair 0:f269e3021894 126
elessair 0:f269e3021894 127 virtual int add_dns_server(const SocketAddress &address)
elessair 0:f269e3021894 128 {
elessair 0:f269e3021894 129 if (!_stack_api()->add_dns_server) {
elessair 0:f269e3021894 130 return NetworkStack::add_dns_server(address);
elessair 0:f269e3021894 131 }
elessair 0:f269e3021894 132
elessair 0:f269e3021894 133 return _stack_api()->add_dns_server(_stack(), address.get_addr());
elessair 0:f269e3021894 134 }
elessair 0:f269e3021894 135
elessair 0:f269e3021894 136 virtual int setstackopt(int level, int optname, const void *optval, unsigned optlen)
elessair 0:f269e3021894 137 {
elessair 0:f269e3021894 138 if (!_stack_api()->setstackopt) {
elessair 0:f269e3021894 139 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 140 }
elessair 0:f269e3021894 141
elessair 0:f269e3021894 142 return _stack_api()->setstackopt(_stack(), level, optname, optval, optlen);
elessair 0:f269e3021894 143 }
elessair 0:f269e3021894 144
elessair 0:f269e3021894 145 virtual int getstackopt(int level, int optname, void *optval, unsigned *optlen)
elessair 0:f269e3021894 146 {
elessair 0:f269e3021894 147 if (!_stack_api()->getstackopt) {
elessair 0:f269e3021894 148 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 149 }
elessair 0:f269e3021894 150
elessair 0:f269e3021894 151 return _stack_api()->getstackopt(_stack(), level, optname, optval, optlen);
elessair 0:f269e3021894 152 }
elessair 0:f269e3021894 153
elessair 0:f269e3021894 154 protected:
elessair 0:f269e3021894 155 virtual int socket_open(nsapi_socket_t *socket, nsapi_protocol_t proto)
elessair 0:f269e3021894 156 {
elessair 0:f269e3021894 157 if (!_stack_api()->socket_open) {
elessair 0:f269e3021894 158 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 159 }
elessair 0:f269e3021894 160
elessair 0:f269e3021894 161 return _stack_api()->socket_open(_stack(), socket, proto);
elessair 0:f269e3021894 162 }
elessair 0:f269e3021894 163
elessair 0:f269e3021894 164 virtual int socket_close(nsapi_socket_t socket)
elessair 0:f269e3021894 165 {
elessair 0:f269e3021894 166 if (!_stack_api()->socket_close) {
elessair 0:f269e3021894 167 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 168 }
elessair 0:f269e3021894 169
elessair 0:f269e3021894 170 return _stack_api()->socket_close(_stack(), socket);
elessair 0:f269e3021894 171 }
elessair 0:f269e3021894 172
elessair 0:f269e3021894 173 virtual int socket_bind(nsapi_socket_t socket, const SocketAddress &address)
elessair 0:f269e3021894 174 {
elessair 0:f269e3021894 175 if (!_stack_api()->socket_bind) {
elessair 0:f269e3021894 176 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 177 }
elessair 0:f269e3021894 178
elessair 0:f269e3021894 179 return _stack_api()->socket_bind(_stack(), socket, address.get_addr(), address.get_port());
elessair 0:f269e3021894 180 }
elessair 0:f269e3021894 181
elessair 0:f269e3021894 182 virtual int socket_listen(nsapi_socket_t socket, int backlog)
elessair 0:f269e3021894 183 {
elessair 0:f269e3021894 184 if (!_stack_api()->socket_listen) {
elessair 0:f269e3021894 185 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 186 }
elessair 0:f269e3021894 187
elessair 0:f269e3021894 188 return _stack_api()->socket_listen(_stack(), socket, backlog);
elessair 0:f269e3021894 189 }
elessair 0:f269e3021894 190
elessair 0:f269e3021894 191 virtual int socket_connect(nsapi_socket_t socket, const SocketAddress &address)
elessair 0:f269e3021894 192 {
elessair 0:f269e3021894 193 if (!_stack_api()->socket_connect) {
elessair 0:f269e3021894 194 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 195 }
elessair 0:f269e3021894 196
elessair 0:f269e3021894 197 return _stack_api()->socket_connect(_stack(), socket, address.get_addr(), address.get_port());
elessair 0:f269e3021894 198 }
elessair 0:f269e3021894 199
elessair 0:f269e3021894 200 virtual int socket_accept(nsapi_socket_t server, nsapi_socket_t *socket, SocketAddress *address)
elessair 0:f269e3021894 201 {
elessair 0:f269e3021894 202 if (!_stack_api()->socket_accept) {
elessair 0:f269e3021894 203 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 204 }
elessair 0:f269e3021894 205
elessair 0:f269e3021894 206 nsapi_addr_t addr = {NSAPI_IPv4, 0};
elessair 0:f269e3021894 207 uint16_t port = 0;
elessair 0:f269e3021894 208
elessair 0:f269e3021894 209 int err = _stack_api()->socket_accept(_stack(), server, socket, &addr, &port);
elessair 0:f269e3021894 210
elessair 0:f269e3021894 211 if (address) {
elessair 0:f269e3021894 212 address->set_addr(addr);
elessair 0:f269e3021894 213 address->set_port(port);
elessair 0:f269e3021894 214 }
elessair 0:f269e3021894 215
elessair 0:f269e3021894 216 return err;
elessair 0:f269e3021894 217 }
elessair 0:f269e3021894 218
elessair 0:f269e3021894 219 virtual int socket_send(nsapi_socket_t socket, const void *data, unsigned size)
elessair 0:f269e3021894 220 {
elessair 0:f269e3021894 221 if (!_stack_api()->socket_send) {
elessair 0:f269e3021894 222 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 223 }
elessair 0:f269e3021894 224
elessair 0:f269e3021894 225 return _stack_api()->socket_send(_stack(), socket, data, size);
elessair 0:f269e3021894 226 }
elessair 0:f269e3021894 227
elessair 0:f269e3021894 228 virtual int socket_recv(nsapi_socket_t socket, void *data, unsigned size)
elessair 0:f269e3021894 229 {
elessair 0:f269e3021894 230 if (!_stack_api()->socket_recv) {
elessair 0:f269e3021894 231 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 232 }
elessair 0:f269e3021894 233
elessair 0:f269e3021894 234 return _stack_api()->socket_recv(_stack(), socket, data, size);
elessair 0:f269e3021894 235 }
elessair 0:f269e3021894 236
elessair 0:f269e3021894 237 virtual int socket_sendto(nsapi_socket_t socket, const SocketAddress &address, const void *data, unsigned size)
elessair 0:f269e3021894 238 {
elessair 0:f269e3021894 239 if (!_stack_api()->socket_sendto) {
elessair 0:f269e3021894 240 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 241 }
elessair 0:f269e3021894 242
elessair 0:f269e3021894 243 return _stack_api()->socket_sendto(_stack(), socket, address.get_addr(), address.get_port(), data, size);
elessair 0:f269e3021894 244 }
elessair 0:f269e3021894 245
elessair 0:f269e3021894 246 virtual int socket_recvfrom(nsapi_socket_t socket, SocketAddress *address, void *data, unsigned size)
elessair 0:f269e3021894 247 {
elessair 0:f269e3021894 248 if (!_stack_api()->socket_recvfrom) {
elessair 0:f269e3021894 249 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 250 }
elessair 0:f269e3021894 251
elessair 0:f269e3021894 252 nsapi_addr_t addr = {NSAPI_IPv4, 0};
elessair 0:f269e3021894 253 uint16_t port = 0;
elessair 0:f269e3021894 254
elessair 0:f269e3021894 255 int err = _stack_api()->socket_recvfrom(_stack(), socket, &addr, &port, data, size);
elessair 0:f269e3021894 256
elessair 0:f269e3021894 257 if (address) {
elessair 0:f269e3021894 258 address->set_addr(addr);
elessair 0:f269e3021894 259 address->set_port(port);
elessair 0:f269e3021894 260 }
elessair 0:f269e3021894 261
elessair 0:f269e3021894 262 return err;
elessair 0:f269e3021894 263 }
elessair 0:f269e3021894 264
elessair 0:f269e3021894 265 virtual void socket_attach(nsapi_socket_t socket, void (*callback)(void *), void *data)
elessair 0:f269e3021894 266 {
elessair 0:f269e3021894 267 if (!_stack_api()->socket_attach) {
elessair 0:f269e3021894 268 return;
elessair 0:f269e3021894 269 }
elessair 0:f269e3021894 270
elessair 0:f269e3021894 271 return _stack_api()->socket_attach(_stack(), socket, callback, data);
elessair 0:f269e3021894 272 }
elessair 0:f269e3021894 273
elessair 0:f269e3021894 274 virtual int setsockopt(nsapi_socket_t socket, int level, int optname, const void *optval, unsigned optlen)
elessair 0:f269e3021894 275 {
elessair 0:f269e3021894 276 if (!_stack_api()->setsockopt) {
elessair 0:f269e3021894 277 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 278 }
elessair 0:f269e3021894 279
elessair 0:f269e3021894 280 return _stack_api()->setsockopt(_stack(), socket, level, optname, optval, optlen);
elessair 0:f269e3021894 281 }
elessair 0:f269e3021894 282
elessair 0:f269e3021894 283 virtual int getsockopt(nsapi_socket_t socket, int level, int optname, void *optval, unsigned *optlen)
elessair 0:f269e3021894 284 {
elessair 0:f269e3021894 285 if (!_stack_api()->getsockopt) {
elessair 0:f269e3021894 286 return NSAPI_ERROR_UNSUPPORTED;
elessair 0:f269e3021894 287 }
elessair 0:f269e3021894 288
elessair 0:f269e3021894 289 return _stack_api()->getsockopt(_stack(), socket, level, optname, optval, optlen);
elessair 0:f269e3021894 290 }
elessair 0:f269e3021894 291 };
elessair 0:f269e3021894 292
elessair 0:f269e3021894 293
elessair 0:f269e3021894 294 // Conversion function for network stacks
elessair 0:f269e3021894 295 NetworkStack *nsapi_create_stack(nsapi_stack_t *stack)
elessair 0:f269e3021894 296 {
elessair 0:f269e3021894 297 MBED_ASSERT(sizeof stack->_stack_buffer >= sizeof(NetworkStackWrapper));
elessair 0:f269e3021894 298 return new (stack->_stack_buffer) NetworkStackWrapper;
elessair 0:f269e3021894 299 }
elessair 0:f269e3021894 300
elessair 0:f269e3021894 301 NetworkStack *nsapi_create_stack(NetworkStack *stack)
elessair 0:f269e3021894 302 {
elessair 0:f269e3021894 303 return stack;
elessair 0:f269e3021894 304 }
elessair 0:f269e3021894 305