| /* |
| * RPC transport layer |
| * |
| * Copyright 2001 Ove Kåven, TransGaming Technologies |
| * Copyright 2003 Mike Hearn |
| * Copyright 2004 Filip Navara |
| * Copyright 2006 Mike McCormack |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include "config.h" |
| |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <assert.h> |
| |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <stdlib.h> |
| #ifdef HAVE_SYS_TYPES |
| #include <sys/types.h> |
| #endif |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| #ifdef HAVE_NETINET_IN_H |
| #include <netinet/in.h> |
| #endif |
| #ifdef HAVE_ARPA_INET_H |
| #include <arpa/inet.h> |
| #endif |
| #ifdef HAVE_NETDB_H |
| #include <netdb.h> |
| #endif |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winnls.h" |
| #include "winerror.h" |
| #include "winreg.h" |
| #include "winternl.h" |
| #include "wine/unicode.h" |
| |
| #include "rpc.h" |
| #include "rpcndr.h" |
| |
| #include "wine/debug.h" |
| |
| #include "rpc_binding.h" |
| #include "rpc_message.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(rpc); |
| |
| /**** ncacn_np support ****/ |
| |
| typedef struct _RpcConnection_np |
| { |
| RpcConnection common; |
| HANDLE pipe, thread; |
| OVERLAPPED ovl; |
| } RpcConnection_np; |
| |
| static RpcConnection *rpcrt4_conn_np_alloc(void) |
| { |
| return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RpcConnection_np)); |
| } |
| |
| static RPC_STATUS rpcrt4_connect_pipe(RpcConnection *Connection, LPCSTR pname) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| TRACE("listening on %s\n", pname); |
| |
| npc->pipe = CreateNamedPipeA(pname, PIPE_ACCESS_DUPLEX, |
| PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE, |
| PIPE_UNLIMITED_INSTANCES, |
| RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL); |
| memset(&npc->ovl, 0, sizeof(npc->ovl)); |
| npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL); |
| if (ConnectNamedPipe(npc->pipe, &npc->ovl)) |
| return RPC_S_OK; |
| |
| WARN("Couldn't ConnectNamedPipe (error was %ld)\n", GetLastError()); |
| if (GetLastError() == ERROR_PIPE_CONNECTED) { |
| SetEvent(npc->ovl.hEvent); |
| return RPC_S_OK; |
| } |
| if (GetLastError() == ERROR_IO_PENDING) { |
| /* FIXME: looks like we need to GetOverlappedResult here? */ |
| return RPC_S_OK; |
| } |
| return RPC_S_SERVER_UNAVAILABLE; |
| } |
| |
| static RPC_STATUS rpcrt4_open_pipe(RpcConnection *Connection, LPCSTR pname, BOOL wait) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| HANDLE pipe; |
| DWORD err, dwMode; |
| |
| TRACE("connecting to %s\n", pname); |
| |
| while (TRUE) { |
| pipe = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
| OPEN_EXISTING, 0, 0); |
| if (pipe != INVALID_HANDLE_VALUE) break; |
| err = GetLastError(); |
| if (err == ERROR_PIPE_BUSY) { |
| TRACE("connection failed, error=%lx\n", err); |
| return RPC_S_SERVER_TOO_BUSY; |
| } |
| if (!wait) |
| return RPC_S_SERVER_UNAVAILABLE; |
| if (!WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) { |
| err = GetLastError(); |
| WARN("connection failed, error=%lx\n", err); |
| return RPC_S_SERVER_UNAVAILABLE; |
| } |
| } |
| |
| /* success */ |
| memset(&npc->ovl, 0, sizeof(npc->ovl)); |
| /* pipe is connected; change to message-read mode. */ |
| dwMode = PIPE_READMODE_MESSAGE; |
| SetNamedPipeHandleState(pipe, &dwMode, NULL, NULL); |
| npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL); |
| npc->pipe = pipe; |
| |
| return RPC_S_OK; |
| } |
| |
| static RPC_STATUS rpcrt4_ncalrpc_open(RpcConnection* Connection) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| static LPCSTR prefix = "\\\\.\\pipe\\lrpc\\"; |
| RPC_STATUS r; |
| LPSTR pname; |
| |
| /* already connected? */ |
| if (npc->pipe) |
| return RPC_S_OK; |
| |
| /* protseq=ncalrpc: supposed to use NT LPC ports, |
| * but we'll implement it with named pipes for now */ |
| pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1); |
| strcat(strcpy(pname, prefix), Connection->Endpoint); |
| |
| if (Connection->server) |
| r = rpcrt4_connect_pipe(Connection, pname); |
| else |
| r = rpcrt4_open_pipe(Connection, pname, TRUE); |
| HeapFree(GetProcessHeap(), 0, pname); |
| |
| return r; |
| } |
| |
| static RPC_STATUS rpcrt4_ncacn_np_open(RpcConnection* Connection) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| static LPCSTR prefix = "\\\\."; |
| RPC_STATUS r; |
| LPSTR pname; |
| |
| /* already connected? */ |
| if (npc->pipe) |
| return RPC_S_OK; |
| |
| /* protseq=ncacn_np: named pipes */ |
| pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1); |
| strcat(strcpy(pname, prefix), Connection->Endpoint); |
| if (Connection->server) |
| r = rpcrt4_connect_pipe(Connection, pname); |
| else |
| r = rpcrt4_open_pipe(Connection, pname, FALSE); |
| HeapFree(GetProcessHeap(), 0, pname); |
| |
| return r; |
| } |
| |
| static HANDLE rpcrt4_conn_np_get_connect_event(RpcConnection *Connection) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| return npc->ovl.hEvent; |
| } |
| |
| static RPC_STATUS rpcrt4_conn_np_handoff(RpcConnection *old_conn, RpcConnection *new_conn) |
| { |
| RpcConnection_np *old_npc = (RpcConnection_np *) old_conn; |
| RpcConnection_np *new_npc = (RpcConnection_np *) new_conn; |
| /* because of the way named pipes work, we'll transfer the connected pipe |
| * to the child, then reopen the server binding to continue listening */ |
| |
| new_npc->pipe = old_npc->pipe; |
| new_npc->ovl = old_npc->ovl; |
| old_npc->pipe = 0; |
| memset(&old_npc->ovl, 0, sizeof(old_npc->ovl)); |
| return RPCRT4_OpenConnection(old_conn); |
| } |
| |
| static int rpcrt4_conn_np_read(RpcConnection *Connection, |
| void *buffer, unsigned int count) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| DWORD dwRead = 0; |
| if (!ReadFile(npc->pipe, buffer, count, &dwRead, NULL) && |
| (GetLastError() != ERROR_MORE_DATA)) |
| return -1; |
| return dwRead; |
| } |
| |
| static int rpcrt4_conn_np_write(RpcConnection *Connection, |
| const void *buffer, unsigned int count) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| DWORD dwWritten = 0; |
| if (!WriteFile(npc->pipe, buffer, count, &dwWritten, NULL)) |
| return -1; |
| return dwWritten; |
| } |
| |
| static int rpcrt4_conn_np_close(RpcConnection *Connection) |
| { |
| RpcConnection_np *npc = (RpcConnection_np *) Connection; |
| if (npc->pipe) { |
| FlushFileBuffers(npc->pipe); |
| CloseHandle(npc->pipe); |
| npc->pipe = 0; |
| } |
| if (npc->ovl.hEvent) { |
| CloseHandle(npc->ovl.hEvent); |
| npc->ovl.hEvent = 0; |
| } |
| return 0; |
| } |
| |
| /**** ncacn_ip_tcp support ****/ |
| |
| typedef struct _RpcConnection_tcp |
| { |
| RpcConnection common; |
| int sock; |
| } RpcConnection_tcp; |
| |
| static RpcConnection *rpcrt4_conn_tcp_alloc(void) |
| { |
| RpcConnection_tcp *tcpc; |
| tcpc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RpcConnection_tcp)); |
| tcpc->sock = -1; |
| return &tcpc->common; |
| } |
| |
| static RPC_STATUS rpcrt4_ncacn_ip_tcp_open(RpcConnection* Connection) |
| { |
| RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection; |
| int sock; |
| int ret; |
| struct addrinfo *ai; |
| struct addrinfo *ai_cur; |
| struct addrinfo hints; |
| |
| TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint); |
| |
| if (Connection->server) |
| { |
| ERR("ncacn_ip_tcp servers not supported yet\n"); |
| return RPC_S_SERVER_UNAVAILABLE; |
| } |
| |
| if (tcpc->sock != -1) |
| return RPC_S_OK; |
| |
| hints.ai_flags = 0; |
| hints.ai_family = PF_UNSPEC; |
| hints.ai_socktype = SOCK_STREAM; |
| hints.ai_protocol = IPPROTO_TCP; |
| hints.ai_addrlen = 0; |
| hints.ai_addr = NULL; |
| hints.ai_canonname = NULL; |
| hints.ai_next = NULL; |
| |
| ret = getaddrinfo(Connection->NetworkAddr, Connection->Endpoint, &hints, &ai); |
| if (ret < 0) |
| { |
| ERR("getaddrinfo failed with %d\n", ret); |
| return RPC_S_SERVER_UNAVAILABLE; |
| } |
| |
| for (ai_cur = ai; ai_cur; ai_cur = ai->ai_next) |
| { |
| if (TRACE_ON(rpc)) |
| { |
| char host[256]; |
| char service[256]; |
| getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen, |
| host, sizeof(host), service, sizeof(service), |
| NI_NUMERICHOST | NI_NUMERICSERV); |
| TRACE("trying %s:%s\n", host, service); |
| } |
| |
| sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol); |
| if (sock < 0) |
| { |
| WARN("socket() failed\n"); |
| continue; |
| } |
| |
| if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen)) |
| { |
| WARN("connect() failed\n"); |
| close(sock); |
| continue; |
| } |
| |
| tcpc->sock = sock; |
| |
| freeaddrinfo(ai); |
| TRACE("connected\n"); |
| return RPC_S_OK; |
| } |
| |
| freeaddrinfo(ai); |
| ERR("couldn't connect to %s:%s\n", Connection->NetworkAddr, Connection->Endpoint); |
| return RPC_S_SERVER_UNAVAILABLE; |
| } |
| |
| static HANDLE rpcrt4_conn_tcp_get_wait_handle(RpcConnection *Connection) |
| { |
| assert(0); |
| return 0; |
| } |
| |
| static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn) |
| { |
| assert(0); |
| return RPC_S_SERVER_UNAVAILABLE; |
| } |
| |
| static int rpcrt4_conn_tcp_read(RpcConnection *Connection, |
| void *buffer, unsigned int count) |
| { |
| RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection; |
| int r = read(tcpc->sock, buffer, count); |
| TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, r); |
| return r; |
| } |
| |
| static int rpcrt4_conn_tcp_write(RpcConnection *Connection, |
| const void *buffer, unsigned int count) |
| { |
| RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection; |
| int r = write(tcpc->sock, buffer, count); |
| TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, r); |
| return r; |
| } |
| |
| static int rpcrt4_conn_tcp_close(RpcConnection *Connection) |
| { |
| RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection; |
| |
| TRACE("%d\n", tcpc->sock); |
| if (tcpc->sock != -1) |
| close(tcpc->sock); |
| tcpc->sock = -1; |
| return 0; |
| } |
| |
| struct protseq_ops protseq_list[] = { |
| { "ncacn_np", |
| rpcrt4_conn_np_alloc, |
| rpcrt4_ncalrpc_open, |
| rpcrt4_conn_np_get_connect_event, |
| rpcrt4_conn_np_handoff, |
| rpcrt4_conn_np_read, |
| rpcrt4_conn_np_write, |
| rpcrt4_conn_np_close, |
| }, |
| { "ncalrpc", |
| rpcrt4_conn_np_alloc, |
| rpcrt4_ncacn_np_open, |
| rpcrt4_conn_np_get_connect_event, |
| rpcrt4_conn_np_handoff, |
| rpcrt4_conn_np_read, |
| rpcrt4_conn_np_write, |
| rpcrt4_conn_np_close, |
| }, |
| { "ncacn_ip_tcp", |
| rpcrt4_conn_tcp_alloc, |
| rpcrt4_ncacn_ip_tcp_open, |
| rpcrt4_conn_tcp_get_wait_handle, |
| rpcrt4_conn_tcp_handoff, |
| rpcrt4_conn_tcp_read, |
| rpcrt4_conn_tcp_write, |
| rpcrt4_conn_tcp_close, |
| } |
| }; |
| |
| #define MAX_PROTSEQ (sizeof protseq_list / sizeof protseq_list[0]) |
| |
| static struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq) |
| { |
| int i; |
| for(i=0; i<MAX_PROTSEQ; i++) |
| if (!strcmp(protseq_list[i].name, protseq)) |
| return &protseq_list[i]; |
| return NULL; |
| } |
| |
| /**** interface to rest of code ****/ |
| |
| RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection) |
| { |
| TRACE("(Connection == ^%p)\n", Connection); |
| |
| return Connection->ops->open_connection(Connection); |
| } |
| |
| RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection) |
| { |
| TRACE("(Connection == ^%p)\n", Connection); |
| rpcrt4_conn_close(Connection); |
| return RPC_S_OK; |
| } |
| |
| RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server, LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint, LPCSTR NetworkOptions, RpcBinding* Binding) |
| { |
| struct protseq_ops *ops; |
| RpcConnection* NewConnection; |
| |
| ops = rpcrt4_get_protseq_ops(Protseq); |
| if (!ops) |
| return RPC_S_PROTSEQ_NOT_SUPPORTED; |
| |
| NewConnection = ops->alloc(); |
| NewConnection->server = server; |
| NewConnection->ops = ops; |
| NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr); |
| NewConnection->Endpoint = RPCRT4_strdupA(Endpoint); |
| NewConnection->Used = Binding; |
| NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE; |
| |
| TRACE("connection: %p\n", NewConnection); |
| *Connection = NewConnection; |
| |
| return RPC_S_OK; |
| } |
| |
| RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection) |
| { |
| RPC_STATUS err; |
| |
| err = RPCRT4_CreateConnection(Connection, OldConnection->server, |
| rpcrt4_conn_get_name(OldConnection), |
| OldConnection->NetworkAddr, |
| OldConnection->Endpoint, NULL, NULL); |
| if (err == RPC_S_OK) |
| rpcrt4_conn_handoff(OldConnection, *Connection); |
| return err; |
| } |
| |
| RPC_STATUS RPCRT4_DestroyConnection(RpcConnection* Connection) |
| { |
| TRACE("connection: %p\n", Connection); |
| |
| RPCRT4_CloseConnection(Connection); |
| RPCRT4_strfree(Connection->Endpoint); |
| RPCRT4_strfree(Connection->NetworkAddr); |
| HeapFree(GetProcessHeap(), 0, Connection); |
| return RPC_S_OK; |
| } |