J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | #include <windows.h> |
| 26 | #include <winsock2.h> |
| 27 | |
| 28 | #include "sysSocket.h" |
| 29 | #include "socketTransport.h" |
| 30 | |
| 31 | typedef jboolean bool_t; |
| 32 | |
| 33 | /* |
| 34 | * Table of Windows Sockets errors, the specific exception we |
| 35 | * throw for the error, and the error text. |
| 36 | * |
| 37 | * Note that this table excludes OS dependent errors. |
| 38 | */ |
| 39 | static struct { |
| 40 | int errCode; |
| 41 | const char *errString; |
| 42 | } const winsock_errors[] = { |
| 43 | { WSAEPROVIDERFAILEDINIT, "Provider initialization failed (check %SystemRoot%)" }, |
| 44 | { WSAEACCES, "Permission denied" }, |
| 45 | { WSAEADDRINUSE, "Address already in use" }, |
| 46 | { WSAEADDRNOTAVAIL, "Cannot assign requested address" }, |
| 47 | { WSAEAFNOSUPPORT, "Address family not supported by protocol family" }, |
| 48 | { WSAEALREADY, "Operation already in progress" }, |
| 49 | { WSAECONNABORTED, "Software caused connection abort" }, |
| 50 | { WSAECONNREFUSED, "Connection refused" }, |
| 51 | { WSAECONNRESET, "Connection reset by peer" }, |
| 52 | { WSAEDESTADDRREQ, "Destination address required" }, |
| 53 | { WSAEFAULT, "Bad address" }, |
| 54 | { WSAEHOSTDOWN, "Host is down" }, |
| 55 | { WSAEHOSTUNREACH, "No route to host" }, |
| 56 | { WSAEINPROGRESS, "Operation now in progress" }, |
| 57 | { WSAEINTR, "Interrupted function call" }, |
| 58 | { WSAEINVAL, "Invalid argument" }, |
| 59 | { WSAEISCONN, "Socket is already connected" }, |
| 60 | { WSAEMFILE, "Too many open files" }, |
| 61 | { WSAEMSGSIZE, "The message is larger than the maximum supported by the underlying transport" }, |
| 62 | { WSAENETDOWN, "Network is down" }, |
| 63 | { WSAENETRESET, "Network dropped connection on reset" }, |
| 64 | { WSAENETUNREACH, "Network is unreachable" }, |
| 65 | { WSAENOBUFS, "No buffer space available (maximum connections reached?)" }, |
| 66 | { WSAENOPROTOOPT, "Bad protocol option" }, |
| 67 | { WSAENOTCONN, "Socket is not connected" }, |
| 68 | { WSAENOTSOCK, "Socket operation on nonsocket" }, |
| 69 | { WSAEOPNOTSUPP, "Operation not supported" }, |
| 70 | { WSAEPFNOSUPPORT, "Protocol family not supported" }, |
| 71 | { WSAEPROCLIM, "Too many processes" }, |
| 72 | { WSAEPROTONOSUPPORT, "Protocol not supported" }, |
| 73 | { WSAEPROTOTYPE, "Protocol wrong type for socket" }, |
| 74 | { WSAESHUTDOWN, "Cannot send after socket shutdown" }, |
| 75 | { WSAESOCKTNOSUPPORT, "Socket type not supported" }, |
| 76 | { WSAETIMEDOUT, "Connection timed out" }, |
| 77 | { WSATYPE_NOT_FOUND, "Class type not found" }, |
| 78 | { WSAEWOULDBLOCK, "Resource temporarily unavailable" }, |
| 79 | { WSAHOST_NOT_FOUND, "Host not found" }, |
| 80 | { WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available" }, |
| 81 | { WSANOTINITIALISED, "Successful WSAStartup not yet performed" }, |
| 82 | { WSANO_DATA, "Valid name, no data record of requested type" }, |
| 83 | { WSANO_RECOVERY, "This is a nonrecoverable error" }, |
| 84 | { WSASYSNOTREADY, "Network subsystem is unavailable" }, |
| 85 | { WSATRY_AGAIN, "Nonauthoritative host not found" }, |
| 86 | { WSAVERNOTSUPPORTED, "Winsock.dll version out of range" }, |
| 87 | { WSAEDISCON, "Graceful shutdown in progress" }, |
| 88 | { WSA_OPERATION_ABORTED, "Overlapped operation aborted" }, |
| 89 | }; |
| 90 | |
| 91 | |
| 92 | /* |
| 93 | * Initialize Windows Sockets API support |
| 94 | */ |
| 95 | BOOL WINAPI |
| 96 | DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) |
| 97 | { |
| 98 | WSADATA wsadata; |
| 99 | |
| 100 | switch (reason) { |
| 101 | case DLL_PROCESS_ATTACH: |
| 102 | if (WSAStartup(MAKEWORD(2,2), &wsadata) != 0) { |
| 103 | return FALSE; |
| 104 | } |
| 105 | break; |
| 106 | |
| 107 | case DLL_PROCESS_DETACH: |
| 108 | WSACleanup(); |
| 109 | break; |
| 110 | |
| 111 | default: |
| 112 | break; |
| 113 | } |
| 114 | return TRUE; |
| 115 | } |
| 116 | |
| 117 | /* |
| 118 | * If we get a nonnull function pointer it might still be the case |
| 119 | * that some other thread is in the process of initializing the socket |
| 120 | * function pointer table, but our pointer should still be good. |
| 121 | */ |
| 122 | int |
| 123 | dbgsysListen(int fd, INT32 count) { |
| 124 | return listen(fd, (int)count); |
| 125 | } |
| 126 | |
| 127 | int |
| 128 | dbgsysConnect(int fd, struct sockaddr *name, int namelen) { |
| 129 | int rv = connect(fd, name, namelen); |
| 130 | if (rv == SOCKET_ERROR) { |
| 131 | if (WSAGetLastError() == WSAEINPROGRESS || WSAGetLastError() == WSAEWOULDBLOCK) { |
| 132 | return DBG_EINPROGRESS; |
| 133 | } |
| 134 | } |
| 135 | return rv; |
| 136 | } |
| 137 | |
| 138 | int dbgsysFinishConnect(int fd, long timeout) { |
| 139 | int rv; |
| 140 | struct timeval t; |
| 141 | fd_set wr, ex; |
| 142 | |
| 143 | t.tv_sec = timeout / 1000; |
| 144 | t.tv_usec = (timeout % 1000) * 1000; |
| 145 | |
| 146 | FD_ZERO(&wr); |
| 147 | FD_ZERO(&ex); |
| 148 | FD_SET((unsigned int)fd, &wr); |
| 149 | FD_SET((unsigned int)fd, &ex); |
| 150 | |
| 151 | rv = select(fd+1, 0, &wr, &ex, &t); |
| 152 | if (rv == 0) { |
| 153 | return SYS_ERR; /* timeout */ |
| 154 | } |
| 155 | |
| 156 | /* |
| 157 | * Check if there was an error - this is preferable to check if |
| 158 | * the socket is writable because some versions of Windows don't |
| 159 | * report a connected socket as being writable. |
| 160 | */ |
| 161 | if (!FD_ISSET(fd, &ex)) { |
| 162 | return SYS_OK; |
| 163 | } |
| 164 | |
| 165 | /* |
| 166 | * Unable to establish connection - to get the reason we must |
| 167 | * call getsockopt. |
| 168 | */ |
| 169 | return SYS_ERR; |
| 170 | } |
| 171 | |
| 172 | |
| 173 | int |
| 174 | dbgsysAccept(int fd, struct sockaddr *name, int *namelen) { |
| 175 | return accept(fd, name, namelen); |
| 176 | } |
| 177 | |
| 178 | int |
| 179 | dbgsysRecvFrom(int fd, char *buf, int nBytes, |
| 180 | int flags, struct sockaddr *from, int *fromlen) { |
| 181 | return recvfrom(fd, buf, nBytes, flags, from, fromlen); |
| 182 | } |
| 183 | |
| 184 | int |
| 185 | dbgsysSendTo(int fd, char *buf, int len, |
| 186 | int flags, struct sockaddr *to, int tolen) { |
| 187 | return sendto(fd, buf, len, flags, to, tolen); |
| 188 | } |
| 189 | |
| 190 | int |
| 191 | dbgsysRecv(int fd, char *buf, int nBytes, int flags) { |
| 192 | return recv(fd, buf, nBytes, flags); |
| 193 | } |
| 194 | |
| 195 | int |
| 196 | dbgsysSend(int fd, char *buf, int nBytes, int flags) { |
| 197 | return send(fd, buf, nBytes, flags); |
| 198 | } |
| 199 | |
| 200 | struct hostent * |
| 201 | dbgsysGetHostByName(char *hostname) { |
| 202 | return gethostbyname(hostname); |
| 203 | } |
| 204 | |
| 205 | unsigned short |
| 206 | dbgsysHostToNetworkShort(unsigned short hostshort) { |
| 207 | return htons(hostshort); |
| 208 | } |
| 209 | |
| 210 | int |
| 211 | dbgsysSocket(int domain, int type, int protocol) { |
| 212 | int fd = socket(domain, type, protocol); |
| 213 | if (fd != SOCKET_ERROR) { |
| 214 | SetHandleInformation((HANDLE)(UINT_PTR)fd, HANDLE_FLAG_INHERIT, FALSE); |
| 215 | } |
| 216 | return fd; |
| 217 | } |
| 218 | |
| 219 | int |
| 220 | dbgsysSocketClose(int fd) { |
| 221 | struct linger l; |
| 222 | int len = sizeof(l); |
| 223 | |
| 224 | if (getsockopt(fd, SOL_SOCKET, SO_LINGER, (char *)&l, &len) == 0) { |
| 225 | if (l.l_onoff == 0) { |
| 226 | WSASendDisconnect(fd, NULL); |
| 227 | } |
| 228 | } |
| 229 | return closesocket(fd); |
| 230 | } |
| 231 | |
| 232 | INT32 |
| 233 | dbgsysSocketAvailable(int fd, INT32 *pbytes) { |
| 234 | u_long arg = (u_long)*pbytes; |
| 235 | return (INT32)ioctlsocket(fd, FIONREAD, &arg); |
| 236 | } |
| 237 | |
| 238 | /* Additions to original follow */ |
| 239 | |
| 240 | int |
| 241 | dbgsysBind(int fd, struct sockaddr *name, int namelen) { |
| 242 | return bind(fd, name, namelen); |
| 243 | } |
| 244 | |
| 245 | |
| 246 | UINT32 |
| 247 | dbgsysInetAddr(const char* cp) { |
| 248 | return (UINT32)inet_addr(cp); |
| 249 | } |
| 250 | |
| 251 | UINT32 |
| 252 | dbgsysHostToNetworkLong(UINT32 hostlong) { |
| 253 | return (UINT32)htonl((u_long)hostlong); |
| 254 | } |
| 255 | |
| 256 | unsigned short |
| 257 | dbgsysNetworkToHostShort(unsigned short netshort) { |
| 258 | return ntohs(netshort); |
| 259 | } |
| 260 | |
| 261 | int |
| 262 | dbgsysGetSocketName(int fd, struct sockaddr *name, int *namelen) { |
| 263 | return getsockname(fd, name, namelen); |
| 264 | } |
| 265 | |
| 266 | UINT32 |
| 267 | dbgsysNetworkToHostLong(UINT32 netlong) { |
| 268 | return (UINT32)ntohl((u_long)netlong); |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | * Below Adapted from PlainSocketImpl.c, win32 version 1.18. Changed exception |
| 273 | * throws to returns of SYS_ERR; we should improve the error codes |
| 274 | * eventually. Changed java objects to values the debugger back end can |
| 275 | * more easily deal with. |
| 276 | */ |
| 277 | |
| 278 | int |
| 279 | dbgsysSetSocketOption(int fd, jint cmd, jboolean on, jvalue value) |
| 280 | { |
| 281 | if (cmd == TCP_NODELAY) { |
| 282 | struct protoent *proto = getprotobyname("TCP"); |
| 283 | int tcp_level = (proto == 0 ? IPPROTO_TCP: proto->p_proto); |
| 284 | long onl = (long)on; |
| 285 | |
| 286 | if (setsockopt(fd, tcp_level, TCP_NODELAY, |
| 287 | (char *)&onl, sizeof(long)) < 0) { |
| 288 | return SYS_ERR; |
| 289 | } |
| 290 | } else if (cmd == SO_LINGER) { |
| 291 | struct linger arg; |
| 292 | arg.l_onoff = on; |
| 293 | |
| 294 | if(on) { |
| 295 | arg.l_linger = (unsigned short)value.i; |
| 296 | if(setsockopt(fd, SOL_SOCKET, SO_LINGER, |
| 297 | (char*)&arg, sizeof(arg)) < 0) { |
| 298 | return SYS_ERR; |
| 299 | } |
| 300 | } else { |
| 301 | if (setsockopt(fd, SOL_SOCKET, SO_LINGER, |
| 302 | (char*)&arg, sizeof(arg)) < 0) { |
| 303 | return SYS_ERR; |
| 304 | } |
| 305 | } |
| 306 | } else if (cmd == SO_SNDBUF) { |
| 307 | jint buflen = value.i; |
| 308 | if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, |
| 309 | (char *)&buflen, sizeof(buflen)) < 0) { |
| 310 | return SYS_ERR; |
| 311 | } |
| 312 | } else if (cmd == SO_REUSEADDR) { |
| 313 | /* |
| 314 | * On Windows the SO_REUSEADDR socket option doesn't implement |
| 315 | * BSD semantics. Specifically, the socket option allows multiple |
| 316 | * processes to bind to the same address/port rather than allowing |
| 317 | * a process to bind with a previous connection in the TIME_WAIT |
| 318 | * state. Hence on Windows we never enable this option for TCP |
| 319 | * option. |
| 320 | */ |
| 321 | int sotype, arglen=sizeof(sotype); |
| 322 | if (getsockopt(fd, SOL_SOCKET, SO_TYPE, (void *)&sotype, &arglen) == SOCKET_ERROR) { |
| 323 | return SYS_ERR; |
| 324 | } |
| 325 | if (sotype != SOCK_STREAM) { |
| 326 | int oni = (int)on; |
| 327 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
| 328 | (char *)&oni, sizeof(oni)) == SOCKET_ERROR) { |
| 329 | return SYS_ERR; |
| 330 | } |
| 331 | } |
| 332 | } else { |
| 333 | return SYS_ERR; |
| 334 | } |
| 335 | return SYS_OK; |
| 336 | } |
| 337 | |
| 338 | int dbgsysConfigureBlocking(int fd, jboolean blocking) { |
| 339 | u_long argp; |
| 340 | int result = 0; |
| 341 | |
| 342 | if (blocking == JNI_FALSE) { |
| 343 | argp = 1; |
| 344 | } else { |
| 345 | argp = 0; |
| 346 | } |
| 347 | result = ioctlsocket(fd, FIONBIO, &argp); |
| 348 | if (result == SOCKET_ERROR) { |
| 349 | return SYS_ERR; |
| 350 | } else { |
| 351 | return SYS_OK; |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | int |
| 356 | dbgsysPoll(int fd, jboolean rd, jboolean wr, long timeout) { |
| 357 | int rv; |
| 358 | struct timeval t; |
| 359 | fd_set rd_tbl, wr_tbl; |
| 360 | |
| 361 | t.tv_sec = timeout / 1000; |
| 362 | t.tv_usec = (timeout % 1000) * 1000; |
| 363 | |
| 364 | FD_ZERO(&rd_tbl); |
| 365 | if (rd) { |
| 366 | FD_SET((unsigned int)fd, &rd_tbl); |
| 367 | } |
| 368 | |
| 369 | FD_ZERO(&wr_tbl); |
| 370 | if (wr) { |
| 371 | FD_SET((unsigned int)fd, &wr_tbl); |
| 372 | } |
| 373 | |
| 374 | rv = select(fd+1, &rd_tbl, &wr_tbl, 0, &t); |
| 375 | if (rv >= 0) { |
| 376 | rv = 0; |
| 377 | if (FD_ISSET(fd, &rd_tbl)) { |
| 378 | rv |= DBG_POLLIN; |
| 379 | } |
| 380 | if (FD_ISSET(fd, &wr_tbl)) { |
| 381 | rv |= DBG_POLLOUT; |
| 382 | } |
| 383 | } |
| 384 | return rv; |
| 385 | } |
| 386 | |
| 387 | int |
| 388 | dbgsysGetLastIOError(char *buf, jint size) { |
| 389 | int table_size = sizeof(winsock_errors) / |
| 390 | sizeof(winsock_errors[0]); |
| 391 | int i; |
| 392 | int error = WSAGetLastError(); |
| 393 | |
| 394 | /* |
| 395 | * Check table for known winsock errors |
| 396 | */ |
| 397 | i=0; |
| 398 | while (i < table_size) { |
| 399 | if (error == winsock_errors[i].errCode) { |
| 400 | break; |
| 401 | } |
| 402 | i++; |
| 403 | } |
| 404 | |
| 405 | if (i < table_size) { |
| 406 | strcpy(buf, winsock_errors[i].errString); |
| 407 | } else { |
| 408 | sprintf(buf, "winsock error %d", error); |
| 409 | } |
| 410 | return 0; |
| 411 | } |
| 412 | |
| 413 | |
| 414 | int |
| 415 | dbgsysTlsAlloc() { |
| 416 | return TlsAlloc(); |
| 417 | } |
| 418 | |
| 419 | void |
| 420 | dbgsysTlsFree(int index) { |
| 421 | TlsFree(index); |
| 422 | } |
| 423 | |
| 424 | void |
| 425 | dbgsysTlsPut(int index, void *value) { |
| 426 | TlsSetValue(index, value); |
| 427 | } |
| 428 | |
| 429 | void * |
| 430 | dbgsysTlsGet(int index) { |
| 431 | return TlsGetValue(index); |
| 432 | } |
| 433 | |
| 434 | #define FT2INT64(ft) \ |
| 435 | ((long)(ft).dwHighDateTime << 32 | (long)(ft).dwLowDateTime) |
| 436 | |
| 437 | long |
| 438 | dbgsysCurrentTimeMillis() { |
| 439 | static long fileTime_1_1_70 = 0; /* midnight 1/1/70 */ |
| 440 | SYSTEMTIME st0; |
| 441 | FILETIME ft0; |
| 442 | |
| 443 | /* initialize on first usage */ |
| 444 | if (fileTime_1_1_70 == 0) { |
| 445 | memset(&st0, 0, sizeof(st0)); |
| 446 | st0.wYear = 1970; |
| 447 | st0.wMonth = 1; |
| 448 | st0.wDay = 1; |
| 449 | SystemTimeToFileTime(&st0, &ft0); |
| 450 | fileTime_1_1_70 = FT2INT64(ft0); |
| 451 | } |
| 452 | |
| 453 | GetSystemTime(&st0); |
| 454 | SystemTimeToFileTime(&st0, &ft0); |
| 455 | |
| 456 | return (FT2INT64(ft0) - fileTime_1_1_70) / 10000; |
| 457 | } |