forked from cory/tildefriends
576 lines
15 KiB
C
576 lines
15 KiB
C
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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include "uv.h"
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#include "internal.h"
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/* Whether there are any non-IFS LSPs stacked on TCP */
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int uv_tcp_non_ifs_lsp_ipv4;
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int uv_tcp_non_ifs_lsp_ipv6;
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/* Ip address used to bind to any port at any interface */
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struct sockaddr_in uv_addr_ip4_any_;
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struct sockaddr_in6 uv_addr_ip6_any_;
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/*
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* Retrieves the pointer to a winsock extension function.
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*/
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static BOOL uv_get_extension_function(SOCKET socket, GUID guid,
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void **target) {
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int result;
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DWORD bytes;
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result = WSAIoctl(socket,
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SIO_GET_EXTENSION_FUNCTION_POINTER,
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&guid,
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sizeof(guid),
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(void*)target,
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sizeof(*target),
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&bytes,
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NULL,
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NULL);
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if (result == SOCKET_ERROR) {
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*target = NULL;
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return FALSE;
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} else {
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return TRUE;
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}
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}
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BOOL uv_get_acceptex_function(SOCKET socket, LPFN_ACCEPTEX* target) {
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const GUID wsaid_acceptex = WSAID_ACCEPTEX;
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return uv_get_extension_function(socket, wsaid_acceptex, (void**)target);
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}
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BOOL uv_get_connectex_function(SOCKET socket, LPFN_CONNECTEX* target) {
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const GUID wsaid_connectex = WSAID_CONNECTEX;
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return uv_get_extension_function(socket, wsaid_connectex, (void**)target);
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}
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void uv_winsock_init(void) {
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WSADATA wsa_data;
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int errorno;
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SOCKET dummy;
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WSAPROTOCOL_INFOW protocol_info;
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int opt_len;
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/* Set implicit binding address used by connectEx */
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if (uv_ip4_addr("0.0.0.0", 0, &uv_addr_ip4_any_)) {
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abort();
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}
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if (uv_ip6_addr("::", 0, &uv_addr_ip6_any_)) {
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abort();
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}
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/* Skip initialization in safe mode without network support */
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if (1 == GetSystemMetrics(SM_CLEANBOOT)) return;
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/* Initialize winsock */
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errorno = WSAStartup(MAKEWORD(2, 2), &wsa_data);
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if (errorno != 0) {
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uv_fatal_error(errorno, "WSAStartup");
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}
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/* Try to detect non-IFS LSPs */
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uv_tcp_non_ifs_lsp_ipv4 = 1;
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dummy = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
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if (dummy != INVALID_SOCKET) {
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opt_len = (int) sizeof protocol_info;
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if (getsockopt(dummy,
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SOL_SOCKET,
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SO_PROTOCOL_INFOW,
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(char*) &protocol_info,
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&opt_len) == 0) {
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if (protocol_info.dwServiceFlags1 & XP1_IFS_HANDLES)
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uv_tcp_non_ifs_lsp_ipv4 = 0;
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}
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closesocket(dummy);
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}
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/* Try to detect IPV6 support and non-IFS LSPs */
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uv_tcp_non_ifs_lsp_ipv6 = 1;
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dummy = socket(AF_INET6, SOCK_STREAM, IPPROTO_IP);
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if (dummy != INVALID_SOCKET) {
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opt_len = (int) sizeof protocol_info;
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if (getsockopt(dummy,
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SOL_SOCKET,
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SO_PROTOCOL_INFOW,
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(char*) &protocol_info,
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&opt_len) == 0) {
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if (protocol_info.dwServiceFlags1 & XP1_IFS_HANDLES)
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uv_tcp_non_ifs_lsp_ipv6 = 0;
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}
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closesocket(dummy);
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}
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}
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int uv_ntstatus_to_winsock_error(NTSTATUS status) {
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switch (status) {
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case STATUS_SUCCESS:
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return ERROR_SUCCESS;
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case STATUS_PENDING:
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return ERROR_IO_PENDING;
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case STATUS_INVALID_HANDLE:
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case STATUS_OBJECT_TYPE_MISMATCH:
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return WSAENOTSOCK;
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case STATUS_INSUFFICIENT_RESOURCES:
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case STATUS_PAGEFILE_QUOTA:
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case STATUS_COMMITMENT_LIMIT:
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case STATUS_WORKING_SET_QUOTA:
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case STATUS_NO_MEMORY:
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case STATUS_QUOTA_EXCEEDED:
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case STATUS_TOO_MANY_PAGING_FILES:
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case STATUS_REMOTE_RESOURCES:
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return WSAENOBUFS;
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case STATUS_TOO_MANY_ADDRESSES:
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case STATUS_SHARING_VIOLATION:
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case STATUS_ADDRESS_ALREADY_EXISTS:
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return WSAEADDRINUSE;
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case STATUS_LINK_TIMEOUT:
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case STATUS_IO_TIMEOUT:
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case STATUS_TIMEOUT:
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return WSAETIMEDOUT;
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case STATUS_GRACEFUL_DISCONNECT:
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return WSAEDISCON;
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case STATUS_REMOTE_DISCONNECT:
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case STATUS_CONNECTION_RESET:
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case STATUS_LINK_FAILED:
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case STATUS_CONNECTION_DISCONNECTED:
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case STATUS_PORT_UNREACHABLE:
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case STATUS_HOPLIMIT_EXCEEDED:
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return WSAECONNRESET;
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case STATUS_LOCAL_DISCONNECT:
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case STATUS_TRANSACTION_ABORTED:
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case STATUS_CONNECTION_ABORTED:
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return WSAECONNABORTED;
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case STATUS_BAD_NETWORK_PATH:
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case STATUS_NETWORK_UNREACHABLE:
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case STATUS_PROTOCOL_UNREACHABLE:
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return WSAENETUNREACH;
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case STATUS_HOST_UNREACHABLE:
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return WSAEHOSTUNREACH;
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case STATUS_CANCELLED:
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case STATUS_REQUEST_ABORTED:
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return WSAEINTR;
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case STATUS_BUFFER_OVERFLOW:
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case STATUS_INVALID_BUFFER_SIZE:
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return WSAEMSGSIZE;
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case STATUS_BUFFER_TOO_SMALL:
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case STATUS_ACCESS_VIOLATION:
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return WSAEFAULT;
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case STATUS_DEVICE_NOT_READY:
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case STATUS_REQUEST_NOT_ACCEPTED:
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return WSAEWOULDBLOCK;
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case STATUS_INVALID_NETWORK_RESPONSE:
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case STATUS_NETWORK_BUSY:
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case STATUS_NO_SUCH_DEVICE:
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case STATUS_NO_SUCH_FILE:
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case STATUS_OBJECT_PATH_NOT_FOUND:
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case STATUS_OBJECT_NAME_NOT_FOUND:
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case STATUS_UNEXPECTED_NETWORK_ERROR:
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return WSAENETDOWN;
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case STATUS_INVALID_CONNECTION:
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return WSAENOTCONN;
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case STATUS_REMOTE_NOT_LISTENING:
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case STATUS_CONNECTION_REFUSED:
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return WSAECONNREFUSED;
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case STATUS_PIPE_DISCONNECTED:
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return WSAESHUTDOWN;
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case STATUS_CONFLICTING_ADDRESSES:
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case STATUS_INVALID_ADDRESS:
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case STATUS_INVALID_ADDRESS_COMPONENT:
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return WSAEADDRNOTAVAIL;
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case STATUS_NOT_SUPPORTED:
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case STATUS_NOT_IMPLEMENTED:
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return WSAEOPNOTSUPP;
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case STATUS_ACCESS_DENIED:
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return WSAEACCES;
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default:
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if ((status & (FACILITY_NTWIN32 << 16)) == (FACILITY_NTWIN32 << 16) &&
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(status & (ERROR_SEVERITY_ERROR | ERROR_SEVERITY_WARNING))) {
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/* It's a windows error that has been previously mapped to an ntstatus
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* code. */
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return (DWORD) (status & 0xffff);
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} else {
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/* The default fallback for unmappable ntstatus codes. */
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return WSAEINVAL;
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}
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}
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}
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/*
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* This function provides a workaround for a bug in the winsock implementation
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* of WSARecv. The problem is that when SetFileCompletionNotificationModes is
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* used to avoid IOCP notifications of completed reads, WSARecv does not
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* reliably indicate whether we can expect a completion package to be posted
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* when the receive buffer is smaller than the received datagram.
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*
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* However it is desirable to use SetFileCompletionNotificationModes because
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* it yields a massive performance increase.
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*
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* This function provides a workaround for that bug, but it only works for the
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* specific case that we need it for. E.g. it assumes that the "avoid iocp"
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* bit has been set, and supports only overlapped operation. It also requires
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* the user to use the default msafd driver, doesn't work when other LSPs are
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* stacked on top of it.
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*/
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int WSAAPI uv_wsarecv_workaround(SOCKET socket, WSABUF* buffers,
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DWORD buffer_count, DWORD* bytes, DWORD* flags, WSAOVERLAPPED *overlapped,
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LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine) {
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NTSTATUS status;
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void* apc_context;
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IO_STATUS_BLOCK* iosb = (IO_STATUS_BLOCK*) &overlapped->Internal;
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AFD_RECV_INFO info;
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DWORD error;
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if (overlapped == NULL || completion_routine != NULL) {
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WSASetLastError(WSAEINVAL);
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return SOCKET_ERROR;
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}
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info.BufferArray = buffers;
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info.BufferCount = buffer_count;
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info.AfdFlags = AFD_OVERLAPPED;
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info.TdiFlags = TDI_RECEIVE_NORMAL;
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if (*flags & MSG_PEEK) {
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info.TdiFlags |= TDI_RECEIVE_PEEK;
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}
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if (*flags & MSG_PARTIAL) {
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info.TdiFlags |= TDI_RECEIVE_PARTIAL;
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}
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if (!((intptr_t) overlapped->hEvent & 1)) {
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apc_context = (void*) overlapped;
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} else {
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apc_context = NULL;
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}
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iosb->Status = STATUS_PENDING;
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iosb->Pointer = 0;
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status = pNtDeviceIoControlFile((HANDLE) socket,
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overlapped->hEvent,
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NULL,
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apc_context,
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iosb,
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IOCTL_AFD_RECEIVE,
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&info,
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sizeof(info),
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NULL,
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0);
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*flags = 0;
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*bytes = (DWORD) iosb->Information;
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switch (status) {
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case STATUS_SUCCESS:
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error = ERROR_SUCCESS;
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break;
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case STATUS_PENDING:
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error = WSA_IO_PENDING;
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break;
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case STATUS_BUFFER_OVERFLOW:
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error = WSAEMSGSIZE;
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break;
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case STATUS_RECEIVE_EXPEDITED:
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error = ERROR_SUCCESS;
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*flags = MSG_OOB;
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break;
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case STATUS_RECEIVE_PARTIAL_EXPEDITED:
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error = ERROR_SUCCESS;
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*flags = MSG_PARTIAL | MSG_OOB;
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break;
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case STATUS_RECEIVE_PARTIAL:
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error = ERROR_SUCCESS;
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*flags = MSG_PARTIAL;
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break;
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default:
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error = uv_ntstatus_to_winsock_error(status);
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break;
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}
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WSASetLastError(error);
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if (error == ERROR_SUCCESS) {
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return 0;
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} else {
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return SOCKET_ERROR;
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}
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}
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/* See description of uv_wsarecv_workaround. */
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int WSAAPI uv_wsarecvfrom_workaround(SOCKET socket, WSABUF* buffers,
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DWORD buffer_count, DWORD* bytes, DWORD* flags, struct sockaddr* addr,
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int* addr_len, WSAOVERLAPPED *overlapped,
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LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine) {
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NTSTATUS status;
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void* apc_context;
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IO_STATUS_BLOCK* iosb = (IO_STATUS_BLOCK*) &overlapped->Internal;
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AFD_RECV_DATAGRAM_INFO info;
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DWORD error;
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if (overlapped == NULL || addr == NULL || addr_len == NULL ||
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completion_routine != NULL) {
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WSASetLastError(WSAEINVAL);
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return SOCKET_ERROR;
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|
|
}
|
||
|
|
|
||
|
|
info.BufferArray = buffers;
|
||
|
|
info.BufferCount = buffer_count;
|
||
|
|
info.AfdFlags = AFD_OVERLAPPED;
|
||
|
|
info.TdiFlags = TDI_RECEIVE_NORMAL;
|
||
|
|
info.Address = addr;
|
||
|
|
info.AddressLength = addr_len;
|
||
|
|
|
||
|
|
if (*flags & MSG_PEEK) {
|
||
|
|
info.TdiFlags |= TDI_RECEIVE_PEEK;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (*flags & MSG_PARTIAL) {
|
||
|
|
info.TdiFlags |= TDI_RECEIVE_PARTIAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!((intptr_t) overlapped->hEvent & 1)) {
|
||
|
|
apc_context = (void*) overlapped;
|
||
|
|
} else {
|
||
|
|
apc_context = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
iosb->Status = STATUS_PENDING;
|
||
|
|
iosb->Pointer = 0;
|
||
|
|
|
||
|
|
status = pNtDeviceIoControlFile((HANDLE) socket,
|
||
|
|
overlapped->hEvent,
|
||
|
|
NULL,
|
||
|
|
apc_context,
|
||
|
|
iosb,
|
||
|
|
IOCTL_AFD_RECEIVE_DATAGRAM,
|
||
|
|
&info,
|
||
|
|
sizeof(info),
|
||
|
|
NULL,
|
||
|
|
0);
|
||
|
|
|
||
|
|
*flags = 0;
|
||
|
|
*bytes = (DWORD) iosb->Information;
|
||
|
|
|
||
|
|
switch (status) {
|
||
|
|
case STATUS_SUCCESS:
|
||
|
|
error = ERROR_SUCCESS;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case STATUS_PENDING:
|
||
|
|
error = WSA_IO_PENDING;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case STATUS_BUFFER_OVERFLOW:
|
||
|
|
error = WSAEMSGSIZE;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case STATUS_RECEIVE_EXPEDITED:
|
||
|
|
error = ERROR_SUCCESS;
|
||
|
|
*flags = MSG_OOB;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case STATUS_RECEIVE_PARTIAL_EXPEDITED:
|
||
|
|
error = ERROR_SUCCESS;
|
||
|
|
*flags = MSG_PARTIAL | MSG_OOB;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case STATUS_RECEIVE_PARTIAL:
|
||
|
|
error = ERROR_SUCCESS;
|
||
|
|
*flags = MSG_PARTIAL;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
error = uv_ntstatus_to_winsock_error(status);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
WSASetLastError(error);
|
||
|
|
|
||
|
|
if (error == ERROR_SUCCESS) {
|
||
|
|
return 0;
|
||
|
|
} else {
|
||
|
|
return SOCKET_ERROR;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int WSAAPI uv_msafd_poll(SOCKET socket, AFD_POLL_INFO* info_in,
|
||
|
|
AFD_POLL_INFO* info_out, OVERLAPPED* overlapped) {
|
||
|
|
IO_STATUS_BLOCK iosb;
|
||
|
|
IO_STATUS_BLOCK* iosb_ptr;
|
||
|
|
HANDLE event = NULL;
|
||
|
|
void* apc_context;
|
||
|
|
NTSTATUS status;
|
||
|
|
DWORD error;
|
||
|
|
|
||
|
|
if (overlapped != NULL) {
|
||
|
|
/* Overlapped operation. */
|
||
|
|
iosb_ptr = (IO_STATUS_BLOCK*) &overlapped->Internal;
|
||
|
|
event = overlapped->hEvent;
|
||
|
|
|
||
|
|
/* Do not report iocp completion if hEvent is tagged. */
|
||
|
|
if ((uintptr_t) event & 1) {
|
||
|
|
event = (HANDLE)((uintptr_t) event & ~(uintptr_t) 1);
|
||
|
|
apc_context = NULL;
|
||
|
|
} else {
|
||
|
|
apc_context = overlapped;
|
||
|
|
}
|
||
|
|
|
||
|
|
} else {
|
||
|
|
/* Blocking operation. */
|
||
|
|
iosb_ptr = &iosb;
|
||
|
|
event = CreateEvent(NULL, FALSE, FALSE, NULL);
|
||
|
|
if (event == NULL) {
|
||
|
|
return SOCKET_ERROR;
|
||
|
|
}
|
||
|
|
apc_context = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
iosb_ptr->Status = STATUS_PENDING;
|
||
|
|
status = pNtDeviceIoControlFile((HANDLE) socket,
|
||
|
|
event,
|
||
|
|
NULL,
|
||
|
|
apc_context,
|
||
|
|
iosb_ptr,
|
||
|
|
IOCTL_AFD_POLL,
|
||
|
|
info_in,
|
||
|
|
sizeof *info_in,
|
||
|
|
info_out,
|
||
|
|
sizeof *info_out);
|
||
|
|
|
||
|
|
if (overlapped == NULL) {
|
||
|
|
/* If this is a blocking operation, wait for the event to become signaled,
|
||
|
|
* and then grab the real status from the io status block. */
|
||
|
|
if (status == STATUS_PENDING) {
|
||
|
|
DWORD r = WaitForSingleObject(event, INFINITE);
|
||
|
|
|
||
|
|
if (r == WAIT_FAILED) {
|
||
|
|
DWORD saved_error = GetLastError();
|
||
|
|
CloseHandle(event);
|
||
|
|
WSASetLastError(saved_error);
|
||
|
|
return SOCKET_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
status = iosb.Status;
|
||
|
|
}
|
||
|
|
|
||
|
|
CloseHandle(event);
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (status) {
|
||
|
|
case STATUS_SUCCESS:
|
||
|
|
error = ERROR_SUCCESS;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case STATUS_PENDING:
|
||
|
|
error = WSA_IO_PENDING;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
error = uv_ntstatus_to_winsock_error(status);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
WSASetLastError(error);
|
||
|
|
|
||
|
|
if (error == ERROR_SUCCESS) {
|
||
|
|
return 0;
|
||
|
|
} else {
|
||
|
|
return SOCKET_ERROR;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int uv__convert_to_localhost_if_unspecified(const struct sockaddr* addr,
|
||
|
|
struct sockaddr_storage* storage) {
|
||
|
|
struct sockaddr_in* dest4;
|
||
|
|
struct sockaddr_in6* dest6;
|
||
|
|
|
||
|
|
if (addr == NULL)
|
||
|
|
return UV_EINVAL;
|
||
|
|
|
||
|
|
switch (addr->sa_family) {
|
||
|
|
case AF_INET:
|
||
|
|
dest4 = (struct sockaddr_in*) storage;
|
||
|
|
memcpy(dest4, addr, sizeof(*dest4));
|
||
|
|
if (dest4->sin_addr.s_addr == 0)
|
||
|
|
dest4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
||
|
|
return 0;
|
||
|
|
case AF_INET6:
|
||
|
|
dest6 = (struct sockaddr_in6*) storage;
|
||
|
|
memcpy(dest6, addr, sizeof(*dest6));
|
||
|
|
if (memcmp(&dest6->sin6_addr,
|
||
|
|
&uv_addr_ip6_any_.sin6_addr,
|
||
|
|
sizeof(uv_addr_ip6_any_.sin6_addr)) == 0) {
|
||
|
|
struct in6_addr init_sin6_addr = IN6ADDR_LOOPBACK_INIT;
|
||
|
|
dest6->sin6_addr = init_sin6_addr;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
default:
|
||
|
|
return UV_EINVAL;
|
||
|
|
}
|
||
|
|
}
|