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608 lines
19 KiB
C
608 lines
19 KiB
C
/*
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* RPC endpoint mapper
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*
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* Copyright 2002 Greg Turner
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* Copyright 2001 Ove Kåven, TransGaming Technologies
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* Copyright 2008 Robert Shearman (for CodeWeavers)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "rpc.h"
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#include "wine/debug.h"
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#include "wine/exception.h"
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#include "rpc_binding.h"
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#include "epm.h"
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#include "epm_towers.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ole);
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/* The "real" RPC portmapper endpoints that I know of are:
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*
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* ncadg_ip_udp: 135
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* ncacn_ip_tcp: 135
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* ncacn_np: \\pipe\epmapper
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* ncalrpc: epmapper
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* ncacn_http: 593
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*
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* If the user's machine ran a DCE RPC daemon, it would
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* probably be possible to connect to it, but there are many
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* reasons not to, like:
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* - the user probably does *not* run one, and probably
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* shouldn't be forced to run one just for local COM
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* - very few Unix systems use DCE RPC... if they run a RPC
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* daemon at all, it's usually Sun RPC
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* - DCE RPC registrations are persistent and saved on disk,
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* while MS-RPC registrations are documented as non-persistent
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* and stored only in RAM, and auto-destroyed when the process
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* dies (something DCE RPC can't do)
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*
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* Of course, if the user *did* want to run a DCE RPC daemon anyway,
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* there would be interoperability advantages, like the possibility
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* of running a fully functional DCOM server using Wine...
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*/
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static const struct epm_endpoints
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{
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const char *protseq;
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const char *endpoint;
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} epm_endpoints[] =
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{
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{ "ncacn_np", "\\pipe\\epmapper" },
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{ "ncacn_ip_tcp", "135" },
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{ "ncacn_ip_udp", "135" },
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{ "ncalrpc", "epmapper" },
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{ "ncacn_http", "593" },
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};
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static BOOL start_rpcss(void)
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{
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PROCESS_INFORMATION pi;
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STARTUPINFOW si;
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static WCHAR cmd[6];
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static const WCHAR rpcss[] = {'r','p','c','s','s',0};
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BOOL rslt;
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TRACE("\n");
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ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
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ZeroMemory(&si, sizeof(STARTUPINFOA));
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si.cb = sizeof(STARTUPINFOA);
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memcpy(cmd, rpcss, sizeof(rpcss));
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rslt = CreateProcessW(
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NULL, /* executable */
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cmd, /* command line */
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NULL, /* process security attributes */
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NULL, /* primary thread security attributes */
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FALSE, /* inherit handles */
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0, /* creation flags */
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NULL, /* use parent's environment */
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NULL, /* use parent's current directory */
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&si, /* STARTUPINFO pointer */
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&pi /* PROCESS_INFORMATION */
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);
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if (rslt)
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{
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CloseHandle(pi.hProcess);
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CloseHandle(pi.hThread);
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Sleep(100);
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}
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return rslt;
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}
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static inline BOOL is_epm_destination_local(RPC_BINDING_HANDLE handle)
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{
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RpcBinding *bind = handle;
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const char *protseq = bind->Protseq;
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const char *network_addr = bind->NetworkAddr;
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return ((!strcmp(protseq, "ncalrpc") && !network_addr) ||
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(!strcmp(protseq, "ncacn_np") &&
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(!network_addr || !strcmp(network_addr, "."))));
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}
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static RPC_STATUS get_epm_handle_client(RPC_BINDING_HANDLE handle, RPC_BINDING_HANDLE *epm_handle)
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{
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RpcBinding *bind = handle;
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const char * pszEndpoint = NULL;
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RPC_STATUS status;
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RpcBinding* epm_bind;
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unsigned int i;
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if (bind->server)
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return RPC_S_INVALID_BINDING;
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for (i = 0; i < sizeof(epm_endpoints)/sizeof(epm_endpoints[0]); i++)
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if (!strcmp(bind->Protseq, epm_endpoints[i].protseq))
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pszEndpoint = epm_endpoints[i].endpoint;
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if (!pszEndpoint)
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{
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FIXME("no endpoint for the endpoint-mapper found for protseq %s\n", debugstr_a(bind->Protseq));
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return RPC_S_PROTSEQ_NOT_SUPPORTED;
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}
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status = RpcBindingCopy(handle, epm_handle);
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if (status != RPC_S_OK) return status;
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epm_bind = *epm_handle;
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if (epm_bind->AuthInfo)
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{
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/* don't bother with authenticating against the EPM by default
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* (see EnableAuthEpResolution registry value) */
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RpcAuthInfo_Release(epm_bind->AuthInfo);
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epm_bind->AuthInfo = NULL;
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}
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RPCRT4_ResolveBinding(epm_bind, pszEndpoint);
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TRACE("RPC_S_OK\n");
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return RPC_S_OK;
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}
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static RPC_STATUS get_epm_handle_server(RPC_BINDING_HANDLE *epm_handle)
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{
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unsigned char string_binding[] = "ncacn_np:.[\\\\pipe\\\\epmapper]";
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return RpcBindingFromStringBindingA(string_binding, epm_handle);
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}
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static LONG WINAPI rpc_filter(EXCEPTION_POINTERS *__eptr)
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{
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switch (GetExceptionCode())
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{
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case EXCEPTION_ACCESS_VIOLATION:
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case EXCEPTION_ILLEGAL_INSTRUCTION:
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return EXCEPTION_CONTINUE_SEARCH;
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default:
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return EXCEPTION_EXECUTE_HANDLER;
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}
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}
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/***********************************************************************
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* RpcEpRegisterA (RPCRT4.@)
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*/
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RPC_STATUS WINAPI RpcEpRegisterA( RPC_IF_HANDLE IfSpec, RPC_BINDING_VECTOR *BindingVector,
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UUID_VECTOR *UuidVector, RPC_CSTR Annotation )
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{
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PRPC_SERVER_INTERFACE If = IfSpec;
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unsigned long i;
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RPC_STATUS status = RPC_S_OK;
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error_status_t status2;
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ept_entry_t *entries;
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handle_t handle;
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TRACE("(%p,%p,%p,%s)\n", IfSpec, BindingVector, UuidVector, debugstr_a((char*)Annotation));
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TRACE(" ifid=%s\n", debugstr_guid(&If->InterfaceId.SyntaxGUID));
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for (i=0; i<BindingVector->Count; i++) {
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RpcBinding* bind = BindingVector->BindingH[i];
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TRACE(" protseq[%ld]=%s\n", i, debugstr_a(bind->Protseq));
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TRACE(" endpoint[%ld]=%s\n", i, debugstr_a(bind->Endpoint));
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}
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if (UuidVector) {
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for (i=0; i<UuidVector->Count; i++)
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TRACE(" obj[%ld]=%s\n", i, debugstr_guid(UuidVector->Uuid[i]));
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}
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if (!BindingVector->Count) return RPC_S_OK;
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entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*entries) * BindingVector->Count * (UuidVector ? UuidVector->Count : 1));
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if (!entries)
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return RPC_S_OUT_OF_MEMORY;
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status = get_epm_handle_server(&handle);
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if (status != RPC_S_OK)
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{
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HeapFree(GetProcessHeap(), 0, entries);
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return status;
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}
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for (i = 0; i < BindingVector->Count; i++)
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{
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unsigned j;
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RpcBinding* bind = BindingVector->BindingH[i];
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for (j = 0; j < (UuidVector ? UuidVector->Count : 1); j++)
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{
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int len = strlen((char *)Annotation);
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status = TowerConstruct(&If->InterfaceId, &If->TransferSyntax,
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bind->Protseq, bind->Endpoint,
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bind->NetworkAddr,
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&entries[i*(UuidVector ? UuidVector->Count : 1) + j].tower);
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if (status != RPC_S_OK) break;
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if (UuidVector)
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memcpy(&entries[i * UuidVector->Count].object, &UuidVector->Uuid[j], sizeof(GUID));
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else
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memset(&entries[i].object, 0, sizeof(entries[i].object));
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memcpy(entries[i].annotation, Annotation, min(len + 1, ept_max_annotation_size));
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}
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}
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if (status == RPC_S_OK)
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{
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while (TRUE)
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{
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__TRY
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{
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ept_insert(handle, BindingVector->Count * (UuidVector ? UuidVector->Count : 1),
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entries, TRUE, &status2);
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}
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__EXCEPT(rpc_filter)
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{
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status2 = GetExceptionCode();
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}
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__ENDTRY
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if (status2 == RPC_S_SERVER_UNAVAILABLE &&
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is_epm_destination_local(handle))
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{
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if (start_rpcss())
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continue;
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}
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if (status2 != RPC_S_OK)
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ERR("ept_insert failed with error %d\n", status2);
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status = status2; /* FIXME: convert status? */
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break;
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}
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}
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RpcBindingFree(&handle);
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for (i = 0; i < BindingVector->Count; i++)
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{
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unsigned j;
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for (j = 0; j < (UuidVector ? UuidVector->Count : 1); j++)
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I_RpcFree(entries[i*(UuidVector ? UuidVector->Count : 1) + j].tower);
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}
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HeapFree(GetProcessHeap(), 0, entries);
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return status;
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}
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/***********************************************************************
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* RpcEpUnregister (RPCRT4.@)
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*/
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RPC_STATUS WINAPI RpcEpUnregister( RPC_IF_HANDLE IfSpec, RPC_BINDING_VECTOR *BindingVector,
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UUID_VECTOR *UuidVector )
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{
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PRPC_SERVER_INTERFACE If = IfSpec;
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unsigned long i;
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RPC_STATUS status = RPC_S_OK;
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error_status_t status2;
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ept_entry_t *entries;
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handle_t handle;
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TRACE("(%p,%p,%p)\n", IfSpec, BindingVector, UuidVector);
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TRACE(" ifid=%s\n", debugstr_guid(&If->InterfaceId.SyntaxGUID));
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for (i=0; i<BindingVector->Count; i++) {
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RpcBinding* bind = BindingVector->BindingH[i];
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TRACE(" protseq[%ld]=%s\n", i, debugstr_a(bind->Protseq));
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TRACE(" endpoint[%ld]=%s\n", i, debugstr_a(bind->Endpoint));
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}
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if (UuidVector) {
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for (i=0; i<UuidVector->Count; i++)
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TRACE(" obj[%ld]=%s\n", i, debugstr_guid(UuidVector->Uuid[i]));
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}
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entries = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*entries) * BindingVector->Count * (UuidVector ? UuidVector->Count : 1));
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if (!entries)
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return RPC_S_OUT_OF_MEMORY;
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status = get_epm_handle_server(&handle);
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if (status != RPC_S_OK)
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{
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HeapFree(GetProcessHeap(), 0, entries);
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return status;
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}
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for (i = 0; i < BindingVector->Count; i++)
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{
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unsigned j;
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RpcBinding* bind = BindingVector->BindingH[i];
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for (j = 0; j < (UuidVector ? UuidVector->Count : 1); j++)
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{
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status = TowerConstruct(&If->InterfaceId, &If->TransferSyntax,
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bind->Protseq, bind->Endpoint,
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bind->NetworkAddr,
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&entries[i*(UuidVector ? UuidVector->Count : 1) + j].tower);
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if (status != RPC_S_OK) break;
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if (UuidVector)
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memcpy(&entries[i * UuidVector->Count + j].object, &UuidVector->Uuid[j], sizeof(GUID));
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else
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memset(&entries[i].object, 0, sizeof(entries[i].object));
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}
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}
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if (status == RPC_S_OK)
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{
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__TRY
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{
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ept_insert(handle, BindingVector->Count * (UuidVector ? UuidVector->Count : 1),
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entries, TRUE, &status2);
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}
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__EXCEPT(rpc_filter)
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{
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status2 = GetExceptionCode();
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}
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__ENDTRY
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if (status2 == RPC_S_SERVER_UNAVAILABLE)
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status2 = EPT_S_NOT_REGISTERED;
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if (status2 != RPC_S_OK)
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ERR("ept_insert failed with error %d\n", status2);
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status = status2; /* FIXME: convert status? */
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}
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RpcBindingFree(&handle);
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for (i = 0; i < BindingVector->Count; i++)
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{
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unsigned j;
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for (j = 0; j < (UuidVector ? UuidVector->Count : 1); j++)
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I_RpcFree(entries[i*(UuidVector ? UuidVector->Count : 1) + j].tower);
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}
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HeapFree(GetProcessHeap(), 0, entries);
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return status;
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}
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/***********************************************************************
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* RpcEpResolveBinding (RPCRT4.@)
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*/
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RPC_STATUS WINAPI RpcEpResolveBinding( RPC_BINDING_HANDLE Binding, RPC_IF_HANDLE IfSpec )
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{
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PRPC_CLIENT_INTERFACE If = IfSpec;
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RpcBinding* bind = Binding;
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RPC_STATUS status;
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error_status_t status2;
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handle_t handle;
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ept_lookup_handle_t entry_handle = NULL;
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twr_t *tower;
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twr_t *towers[4] = { NULL };
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unsigned32 num_towers, i;
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GUID uuid = GUID_NULL;
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char *resolved_endpoint = NULL;
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TRACE("(%p,%p)\n", Binding, IfSpec);
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TRACE(" protseq=%s\n", debugstr_a(bind->Protseq));
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TRACE(" obj=%s\n", debugstr_guid(&bind->ObjectUuid));
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TRACE(" networkaddr=%s\n", debugstr_a(bind->NetworkAddr));
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TRACE(" ifid=%s\n", debugstr_guid(&If->InterfaceId.SyntaxGUID));
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/* just return for fully bound handles */
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if (bind->Endpoint && (bind->Endpoint[0] != '\0'))
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return RPC_S_OK;
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status = get_epm_handle_client(Binding, &handle);
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if (status != RPC_S_OK) return status;
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status = TowerConstruct(&If->InterfaceId, &If->TransferSyntax, bind->Protseq,
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((RpcBinding *)handle)->Endpoint,
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bind->NetworkAddr, &tower);
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if (status != RPC_S_OK)
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{
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WARN("couldn't get tower\n");
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RpcBindingFree(&handle);
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return status;
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}
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while (TRUE)
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{
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__TRY
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{
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ept_map(handle, &uuid, tower, &entry_handle, sizeof(towers)/sizeof(towers[0]), &num_towers, towers, &status2);
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/* FIXME: translate status2? */
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}
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__EXCEPT(rpc_filter)
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{
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status2 = GetExceptionCode();
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}
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__ENDTRY
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if (status2 == RPC_S_SERVER_UNAVAILABLE &&
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is_epm_destination_local(handle))
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{
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if (start_rpcss())
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continue;
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}
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break;
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};
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RpcBindingFree(&handle);
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I_RpcFree(tower);
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if (status2 != RPC_S_OK)
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{
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ERR("ept_map failed for ifid %s, protseq %s, networkaddr %s\n", debugstr_guid(&If->TransferSyntax.SyntaxGUID), bind->Protseq, bind->NetworkAddr);
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return status2;
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}
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for (i = 0; i < num_towers; i++)
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{
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/* only parse the tower if we haven't already found a suitable
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* endpoint, otherwise just free the tower */
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if (!resolved_endpoint)
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{
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status = TowerExplode(towers[i], NULL, NULL, NULL, &resolved_endpoint, NULL);
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TRACE("status = %d\n", status);
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}
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I_RpcFree(towers[i]);
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}
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if (resolved_endpoint)
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{
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RPCRT4_ResolveBinding(Binding, resolved_endpoint);
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I_RpcFree(resolved_endpoint);
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return RPC_S_OK;
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}
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WARN("couldn't find an endpoint\n");
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return EPT_S_NOT_REGISTERED;
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}
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/*****************************************************************************
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* TowerExplode (RPCRT4.@)
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*/
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RPC_STATUS WINAPI TowerExplode(
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const twr_t *tower, PRPC_SYNTAX_IDENTIFIER object, PRPC_SYNTAX_IDENTIFIER syntax,
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char **protseq, char **endpoint, char **address)
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{
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size_t tower_size;
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RPC_STATUS status;
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const unsigned char *p;
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u_int16 floor_count;
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const twr_uuid_floor_t *object_floor;
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const twr_uuid_floor_t *syntax_floor;
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TRACE("(%p, %p, %p, %p, %p, %p)\n", tower, object, syntax, protseq,
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endpoint, address);
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if (protseq)
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*protseq = NULL;
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if (endpoint)
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*endpoint = NULL;
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if (address)
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*address = NULL;
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tower_size = tower->tower_length;
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if (tower_size < sizeof(u_int16))
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return EPT_S_NOT_REGISTERED;
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p = &tower->tower_octet_string[0];
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floor_count = *(const u_int16 *)p;
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p += sizeof(u_int16);
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tower_size -= sizeof(u_int16);
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TRACE("floor_count: %d\n", floor_count);
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/* FIXME: should we do something with the floor count? at the moment we don't */
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if (tower_size < sizeof(*object_floor) + sizeof(*syntax_floor))
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return EPT_S_NOT_REGISTERED;
|
|
|
|
object_floor = (const twr_uuid_floor_t *)p;
|
|
p += sizeof(*object_floor);
|
|
tower_size -= sizeof(*object_floor);
|
|
syntax_floor = (const twr_uuid_floor_t *)p;
|
|
p += sizeof(*syntax_floor);
|
|
tower_size -= sizeof(*syntax_floor);
|
|
|
|
if ((object_floor->count_lhs != sizeof(object_floor->protid) +
|
|
sizeof(object_floor->uuid) + sizeof(object_floor->major_version)) ||
|
|
(object_floor->protid != EPM_PROTOCOL_UUID) ||
|
|
(object_floor->count_rhs != sizeof(object_floor->minor_version)))
|
|
return EPT_S_NOT_REGISTERED;
|
|
|
|
if ((syntax_floor->count_lhs != sizeof(syntax_floor->protid) +
|
|
sizeof(syntax_floor->uuid) + sizeof(syntax_floor->major_version)) ||
|
|
(syntax_floor->protid != EPM_PROTOCOL_UUID) ||
|
|
(syntax_floor->count_rhs != sizeof(syntax_floor->minor_version)))
|
|
return EPT_S_NOT_REGISTERED;
|
|
|
|
status = RpcTransport_ParseTopOfTower(p, tower_size, protseq, address, endpoint);
|
|
if ((status == RPC_S_OK) && syntax && object)
|
|
{
|
|
syntax->SyntaxGUID = syntax_floor->uuid;
|
|
syntax->SyntaxVersion.MajorVersion = syntax_floor->major_version;
|
|
syntax->SyntaxVersion.MinorVersion = syntax_floor->minor_version;
|
|
object->SyntaxGUID = object_floor->uuid;
|
|
object->SyntaxVersion.MajorVersion = object_floor->major_version;
|
|
object->SyntaxVersion.MinorVersion = object_floor->minor_version;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* TowerConstruct (RPCRT4.@)
|
|
*/
|
|
RPC_STATUS WINAPI TowerConstruct(
|
|
const RPC_SYNTAX_IDENTIFIER *object, const RPC_SYNTAX_IDENTIFIER *syntax,
|
|
const char *protseq, const char *endpoint, const char *address,
|
|
twr_t **tower)
|
|
{
|
|
size_t tower_size;
|
|
RPC_STATUS status;
|
|
unsigned char *p;
|
|
twr_uuid_floor_t *object_floor;
|
|
twr_uuid_floor_t *syntax_floor;
|
|
|
|
TRACE("(%p, %p, %s, %s, %s, %p)\n", object, syntax, debugstr_a(protseq),
|
|
debugstr_a(endpoint), debugstr_a(address), tower);
|
|
|
|
*tower = NULL;
|
|
|
|
status = RpcTransport_GetTopOfTower(NULL, &tower_size, protseq, address, endpoint);
|
|
|
|
if (status != RPC_S_OK)
|
|
return status;
|
|
|
|
tower_size += sizeof(u_int16) + sizeof(*object_floor) + sizeof(*syntax_floor);
|
|
*tower = I_RpcAllocate(FIELD_OFFSET(twr_t, tower_octet_string[tower_size]));
|
|
if (!*tower)
|
|
return RPC_S_OUT_OF_RESOURCES;
|
|
|
|
(*tower)->tower_length = tower_size;
|
|
p = &(*tower)->tower_octet_string[0];
|
|
*(u_int16 *)p = 5; /* number of floors */
|
|
p += sizeof(u_int16);
|
|
object_floor = (twr_uuid_floor_t *)p;
|
|
p += sizeof(*object_floor);
|
|
syntax_floor = (twr_uuid_floor_t *)p;
|
|
p += sizeof(*syntax_floor);
|
|
|
|
object_floor->count_lhs = sizeof(object_floor->protid) + sizeof(object_floor->uuid) +
|
|
sizeof(object_floor->major_version);
|
|
object_floor->protid = EPM_PROTOCOL_UUID;
|
|
object_floor->count_rhs = sizeof(object_floor->minor_version);
|
|
object_floor->uuid = object->SyntaxGUID;
|
|
object_floor->major_version = object->SyntaxVersion.MajorVersion;
|
|
object_floor->minor_version = object->SyntaxVersion.MinorVersion;
|
|
|
|
syntax_floor->count_lhs = sizeof(syntax_floor->protid) + sizeof(syntax_floor->uuid) +
|
|
sizeof(syntax_floor->major_version);
|
|
syntax_floor->protid = EPM_PROTOCOL_UUID;
|
|
syntax_floor->count_rhs = sizeof(syntax_floor->minor_version);
|
|
syntax_floor->uuid = syntax->SyntaxGUID;
|
|
syntax_floor->major_version = syntax->SyntaxVersion.MajorVersion;
|
|
syntax_floor->minor_version = syntax->SyntaxVersion.MinorVersion;
|
|
|
|
status = RpcTransport_GetTopOfTower(p, &tower_size, protseq, address, endpoint);
|
|
if (status != RPC_S_OK)
|
|
{
|
|
I_RpcFree(*tower);
|
|
*tower = NULL;
|
|
return status;
|
|
}
|
|
return RPC_S_OK;
|
|
}
|
|
|
|
void __RPC_FAR * __RPC_USER MIDL_user_allocate(SIZE_T len)
|
|
{
|
|
return HeapAlloc(GetProcessHeap(), 0, len);
|
|
}
|
|
|
|
void __RPC_USER MIDL_user_free(void __RPC_FAR * ptr)
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, ptr);
|
|
}
|