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Make RPCRT4 use Windows compatible protocol (DCE v5.0) for 

communication.
This commit is contained in:
Filip Navara 2004-04-26 23:33:39 +00:00 committed by Alexandre Julliard
parent d701e6de1d
commit c5580b0355
6 changed files with 853 additions and 265 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

114
dlls/rpcrt4/rpc_binding.c
View File

@ -3,6 +3,7 @@
*
* Copyright 2001 Ove Kåven, TransGaming Technologies
* Copyright 2003 Mike Hearn
* Copyright 2004 Filip Navara
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -36,10 +37,12 @@
#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(ole);
@ -117,6 +120,7 @@ RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server, LPST
NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
NewConnection->Used = Binding;
NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
EnterCriticalSection(&conn_cache_cs);
NewConnection->Next = conn_cache;
@ -206,8 +210,9 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
TRACE("listening on %s\n", pname);
Connection->conn = CreateNamedPipeA(pname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
0, PIPE_UNLIMITED_INSTANCES, 0, 0, 5000, NULL);
Connection->conn = CreateNamedPipeA(pname, PROFILE_SERVER | PIPE_ACCESS_DUPLEX,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE, PIPE_UNLIMITED_INSTANCES,
RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
HeapFree(GetProcessHeap(), 0, pname);
memset(&Connection->ovl, 0, sizeof(Connection->ovl));
Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
@ -216,6 +221,8 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
if (GetLastError() == ERROR_PIPE_CONNECTED) {
SetEvent(Connection->ovl.hEvent);
return RPC_S_OK;
} else if (GetLastError() == ERROR_IO_PENDING) {
return RPC_S_OK;
}
return RPC_S_SERVER_UNAVAILABLE;
}
@ -227,8 +234,9 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
TRACE("listening on %s\n", pname);
Connection->conn = CreateNamedPipeA(pname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
0, PIPE_UNLIMITED_INSTANCES, 0, 0, 5000, NULL);
Connection->conn = CreateNamedPipeA(pname, PROFILE_SERVER | PIPE_ACCESS_DUPLEX,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
HeapFree(GetProcessHeap(), 0, pname);
memset(&Connection->ovl, 0, sizeof(Connection->ovl));
Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
@ -254,6 +262,7 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
LPSTR pname;
HANDLE conn;
DWORD err;
DWORD dwMode;
pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
@ -261,7 +270,7 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
while (TRUE) {
if (WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
conn = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
OPEN_EXISTING, 0, 0);
if (conn != INVALID_HANDLE_VALUE) break;
err = GetLastError();
if (err == ERROR_PIPE_BUSY) continue;
@ -279,6 +288,9 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
/* success */
HeapFree(GetProcessHeap(), 0, pname);
memset(&Connection->ovl, 0, sizeof(Connection->ovl));
/* pipe is connected; change to message-read mode. */
dwMode = PIPE_READMODE_MESSAGE;
SetNamedPipeHandleState(conn, &dwMode, NULL, NULL);
Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
Connection->conn = conn;
}
@ -288,12 +300,13 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
LPSTR pname;
HANDLE conn;
DWORD err;
DWORD dwMode;
pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
TRACE("connecting to %s\n", pname);
conn = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
OPEN_EXISTING, 0, 0);
if (conn == INVALID_HANDLE_VALUE) {
err = GetLastError();
/* we don't need to handle ERROR_PIPE_BUSY here,
@ -309,6 +322,9 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
/* success */
HeapFree(GetProcessHeap(), 0, pname);
memset(&Connection->ovl, 0, sizeof(Connection->ovl));
/* pipe is connected; change to message-read mode. */
dwMode = PIPE_READMODE_MESSAGE;
SetNamedPipeHandleState(conn, &dwMode, NULL, NULL);
Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
Connection->conn = conn;
} else {
@ -484,18 +500,100 @@ RPC_STATUS RPCRT4_DestroyBinding(RpcBinding* Binding)
return RPC_S_OK;
}
RPC_STATUS RPCRT4_OpenBinding(RpcBinding* Binding, RpcConnection** Connection)
RPC_STATUS RPCRT4_OpenBinding(RpcBinding* Binding, RpcConnection** Connection,
PRPC_SYNTAX_IDENTIFIER TransferSyntax,
PRPC_SYNTAX_IDENTIFIER InterfaceId)
{
RpcConnection* NewConnection;
RPC_STATUS status;
TRACE("(Binding == ^%p)\n", Binding);
/* if we try to bind a new interface and the connection is already opened,
* close the current connection and create a new with the new binding. */
if (!Binding->server && Binding->FromConn &&
memcmp(&Binding->FromConn->ActiveInterface, InterfaceId,
sizeof(RPC_SYNTAX_IDENTIFIER))) {
RPCRT4_ReleaseConnection(Binding->FromConn);
Binding->FromConn = NULL;
} else {
/* we already have an connection with acceptable binding, so use it */
if (Binding->FromConn) {
*Connection = Binding->FromConn;
return RPC_S_OK;
}
}
/* create a new connection */
RPCRT4_GetConnection(&NewConnection, Binding->server, Binding->Protseq, Binding->NetworkAddr, Binding->Endpoint, NULL, Binding);
*Connection = NewConnection;
return RPCRT4_OpenConnection(NewConnection);
status = RPCRT4_OpenConnection(NewConnection);
if (status != RPC_S_OK) {
return status;
}
/* we need to send a binding packet if we are client. */
if (!(*Connection)->server) {
RpcPktHdr *hdr;
DWORD count;
BYTE *response;
RpcPktHdr *response_hdr;
TRACE("sending bind request to server\n");
hdr = RPCRT4_BuildBindHeader(NDR_LOCAL_DATA_REPRESENTATION,
RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE,
InterfaceId, TransferSyntax);
status = RPCRT4_Send(*Connection, hdr, NULL, 0);
if (status != RPC_S_OK) {
RPCRT4_ReleaseConnection(*Connection);
return status;
}
response = HeapAlloc(GetProcessHeap(), 0, RPC_MAX_PACKET_SIZE);
if (response == NULL) {
WARN("Can't allocate memory for binding response\n");
RPCRT4_ReleaseConnection(*Connection);
return E_OUTOFMEMORY;
}
/* get a reply */
if (!ReadFile(NewConnection->conn, response, RPC_MAX_PACKET_SIZE, &count, NULL)) {
WARN("ReadFile failed with error %ld\n", GetLastError());
RPCRT4_ReleaseConnection(*Connection);
return RPC_S_PROTOCOL_ERROR;
}
if (count < sizeof(response_hdr->common)) {
WARN("received invalid header\n");
RPCRT4_ReleaseConnection(*Connection);
return RPC_S_PROTOCOL_ERROR;
}
response_hdr = (RpcPktHdr*)response;
if (response_hdr->common.rpc_ver != RPC_VER_MAJOR ||
response_hdr->common.rpc_ver_minor != RPC_VER_MINOR ||
response_hdr->common.ptype != PKT_BIND_ACK) {
WARN("invalid protocol version or rejection packet\n");
RPCRT4_ReleaseConnection(Binding->FromConn);
return RPC_S_PROTOCOL_ERROR;
}
if (response_hdr->bind_ack.max_tsize < RPC_MIN_PACKET_SIZE) {
WARN("server doesn't allow large enough packets\n");
RPCRT4_ReleaseConnection(Binding->FromConn);
return RPC_S_PROTOCOL_ERROR;
}
/* FIXME: do more checks? */
(*Connection)->MaxTransmissionSize = response_hdr->bind_ack.max_tsize;
(*Connection)->ActiveInterface = *InterfaceId;
}
return RPC_S_OK;
}
RPC_STATUS RPCRT4_CloseBinding(RpcBinding* Binding, RpcConnection* Connection)

6
dlls/rpcrt4/rpc_binding.h
View File

@ -33,6 +33,9 @@ typedef struct _RpcConnection
LPSTR Endpoint;
HANDLE conn, thread;
OVERLAPPED ovl;
USHORT MaxTransmissionSize;
/* The active interface bound to server. */
RPC_SYNTAX_IDENTIFIER ActiveInterface;
} RpcConnection;
/* don't know what MS's structure looks like */
@ -42,7 +45,6 @@ typedef struct _RpcBinding
struct _RpcBinding* Next;
BOOL server;
UUID ObjectUuid;
UUID ActiveUuid;
LPSTR Protseq;
LPSTR NetworkAddr;
LPSTR Endpoint;
@ -75,7 +77,7 @@ RPC_STATUS RPCRT4_SetBindingObject(RpcBinding* Binding, UUID* ObjectUuid);
RPC_STATUS RPCRT4_MakeBinding(RpcBinding** Binding, RpcConnection* Connection);
RPC_STATUS RPCRT4_ExportBinding(RpcBinding** Binding, RpcBinding* OldBinding);
RPC_STATUS RPCRT4_DestroyBinding(RpcBinding* Binding);
RPC_STATUS RPCRT4_OpenBinding(RpcBinding* Binding, RpcConnection** Connection);
RPC_STATUS RPCRT4_OpenBinding(RpcBinding* Binding, RpcConnection** Connection, PRPC_SYNTAX_IDENTIFIER TransferSyntax, PRPC_SYNTAX_IDENTIFIER InterfaceId);
RPC_STATUS RPCRT4_CloseBinding(RpcBinding* Binding, RpcConnection* Connection);
BOOL RPCRT4_RPCSSOnDemandCall(PRPCSS_NP_MESSAGE msg, char *vardata_payload, PRPCSS_NP_REPLY reply);
HANDLE RPCRT4_GetMasterMutex(void);

140
dlls/rpcrt4/rpc_defs.h
View File

@ -2,6 +2,7 @@
* RPC definitions
*
* Copyright 2001-2002 Ove Kåven, TransGaming Technologies
* Copyright 2004 Filip Navara
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -25,27 +26,124 @@
typedef struct
{
unsigned char rpc_ver;
unsigned char ptype;
unsigned char flags1;
unsigned char flags2;
unsigned char drep[3];
unsigned char serial_hi;
GUID object;
GUID if_id;
GUID act_id;
unsigned long server_boot;
unsigned long if_vers;
unsigned long seqnum;
unsigned char rpc_ver; /* RPC major version (5) */
unsigned char rpc_ver_minor; /* RPC minor version (0) */
unsigned char ptype; /* Packet type (PKT_*) */
unsigned char flags;
unsigned char drep[4]; /* Data representation */
unsigned short frag_len; /* Data size in bytes including header and tail. */
unsigned short auth_len; /* Authentication length */
unsigned long call_id; /* Call identifier. */
} RpcPktCommonHdr;
typedef struct
{
RpcPktCommonHdr common;
unsigned long alloc_hint; /* Data size in bytes excluding header and tail. */
unsigned short context_id; /* Presentation context identifier */
unsigned short opnum;
unsigned short ihint;
unsigned short ahint;
unsigned short len;
unsigned short fragnum;
unsigned char auth_proto;
unsigned char serial_lo;
} RpcPktRequestHdr;
typedef struct
{
RpcPktCommonHdr common;
unsigned long alloc_hint; /* Data size in bytes excluding header and tail. */
unsigned short context_id; /* Presentation context identifier */
unsigned char cancel_count;
unsigned char reserved;
} RpcPktResponseHdr;
typedef struct
{
RpcPktCommonHdr common;
unsigned long alloc_hint; /* Data size in bytes excluding header and tail. */
unsigned short context_id; /* Presentation context identifier */
unsigned char alert_count; /* Pending alert count */
unsigned char padding[3]; /* Force alignment! */
unsigned long status; /* Runtime fault code (RPC_STATUS) */
unsigned long reserved;
} RpcPktFaultHdr;
typedef struct
{
RpcPktCommonHdr common;
unsigned short max_tsize; /* Maximum transmission fragment size */
unsigned short max_rsize; /* Maximum receive fragment size */
unsigned long assoc_gid; /* Associated group id */
unsigned char num_elements; /* Number of elements */
unsigned char padding[3]; /* Force alignment! */
unsigned short context_id; /* Presentation context identifier */
unsigned char num_syntaxes; /* Number of syntaxes */
RPC_SYNTAX_IDENTIFIER abstract;
RPC_SYNTAX_IDENTIFIER transfer;
} RpcPktBindHdr;
#include "pshpack1.h"
typedef struct
{
unsigned short length; /* Length of the string including null terminator */
char string[1]; /* String data in single byte, null terminated form */
} RpcAddressString;
#include "poppack.h"
typedef struct
{
unsigned char padding1[2]; /* Force alignment! */
unsigned char num_results; /* Number of results */
unsigned char padding2[3]; /* Force alignment! */
struct {
unsigned short result;
unsigned short reason;
} results[1];
} RpcResults;
typedef struct
{
RpcPktCommonHdr common;
unsigned short max_tsize; /* Maximum transmission fragment size */
unsigned short max_rsize; /* Maximum receive fragment size */
unsigned long assoc_gid; /* Associated group id */
/*
* Following this header are these fields:
* RpcAddressString server_address;
* RpcResults results;
* RPC_SYNTAX_IDENTIFIER transfer;
*/
} RpcPktBindAckHdr;
typedef struct
{
RpcPktCommonHdr common;
unsigned short reject_reason;
unsigned char protocols_count;
struct {
unsigned char rpc_ver;
unsigned char rpc_ver_minor;
} protocols[1];
} RpcPktBindNAckHdr;
/* Union representing all possible packet headers */
typedef union
{
RpcPktCommonHdr common;
RpcPktRequestHdr request;
RpcPktResponseHdr response;
RpcPktFaultHdr fault;
RpcPktBindHdr bind;
RpcPktBindAckHdr bind_ack;
RpcPktBindNAckHdr bind_nack;
} RpcPktHdr;
#define RPC_VER_MAJOR 5
#define RPC_VER_MINOR 0
#define RPC_FLG_FIRST 1
#define RPC_FLG_LAST 2
#define RPC_FLG_OBJECT_UUID 0x80
#define RPC_MIN_PACKET_SIZE 0x1000
#define RPC_MAX_PACKET_SIZE 0x16D0
#define PKT_REQUEST 0
#define PKT_PING 1
#define PKT_RESPONSE 2
@ -59,13 +157,17 @@ typedef struct
#define PKT_CANCEL_ACK 10
#define PKT_BIND 11
#define PKT_BIND_ACK 12
#define PKT_BIND_NAK 13
#define PKT_BIND_NACK 13
#define PKT_ALTER_CONTEXT 14
#define PKT_ALTER_CONTEXT_RESP 15
#define PKT_SHUTDOWN 17
#define PKT_CO_CANCEL 18
#define PKT_ORPHANED 19
#define RESULT_ACCEPT 0
#define NO_REASON 0
#define NCADG_IP_UDP 0x08
#define NCACN_IP_TCP 0x07
#define NCADG_IPX 0x0E

545
dlls/rpcrt4/rpc_message.c
View File

@ -2,6 +2,7 @@
* RPC messages
*
* Copyright 2001-2002 Ove Kåven, TransGaming Technologies
* Copyright 2004 Filip Navara
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -20,7 +21,6 @@
* TODO:
* - figure out whether we *really* got this right
* - check for errors and throw exceptions
* - decide if OVERLAPPED_WORKS
*/
#include <stdarg.h>
@ -33,6 +33,7 @@
#include "winreg.h"
#include "rpc.h"
#include "rpcndr.h"
#include "rpcdcep.h"
#include "wine/debug.h"
@ -43,6 +44,394 @@
WINE_DEFAULT_DEBUG_CHANNEL(ole);
DWORD RPCRT4_GetHeaderSize(RpcPktHdr *Header)
{
static const DWORD header_sizes[] = {
sizeof(Header->request), 0, sizeof(Header->response),
sizeof(Header->fault), 0, 0, 0, 0, 0, 0, 0, sizeof(Header->bind),
sizeof(Header->bind_ack), sizeof(Header->bind_nack),
0, 0, 0, 0, 0
};
ULONG ret = 0;
if (Header->common.ptype < sizeof(header_sizes) / sizeof(header_sizes[0])) {
ret = header_sizes[Header->common.ptype];
if (ret == 0)
FIXME("unhandled packet type\n");
if (Header->common.flags & RPC_FLG_OBJECT_UUID)
ret += sizeof(UUID);
} else {
TRACE("invalid packet type\n");
}
return ret;
}
VOID RPCRT4_BuildCommonHeader(RpcPktHdr *Header, unsigned char PacketType,
unsigned long DataRepresentation)
{
Header->common.rpc_ver = RPC_VER_MAJOR;
Header->common.rpc_ver_minor = RPC_VER_MINOR;
Header->common.ptype = PacketType;
Header->common.drep[0] = LOBYTE(LOWORD(DataRepresentation));
Header->common.drep[1] = HIBYTE(LOWORD(DataRepresentation));
Header->common.drep[2] = LOBYTE(HIWORD(DataRepresentation));
Header->common.drep[3] = HIBYTE(HIWORD(DataRepresentation));
Header->common.auth_len = 0;
Header->common.call_id = 1;
Header->common.flags = 0;
/* Flags and fragment length are computed in RPCRT4_Send. */
}
RpcPktHdr *RPCRT4_BuildRequestHeader(unsigned long DataRepresentation,
unsigned long BufferLength,
unsigned short ProcNum,
UUID *ObjectUuid)
{
RpcPktHdr *header;
BOOL has_object;
RPC_STATUS status;
has_object = (ObjectUuid != NULL && !UuidIsNil(ObjectUuid, &status));
header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(header->request) + (has_object ? sizeof(UUID) : 0));
if (header == NULL) {
return NULL;
}
RPCRT4_BuildCommonHeader(header, PKT_REQUEST, DataRepresentation);
header->common.frag_len = sizeof(header->request);
header->request.alloc_hint = BufferLength;
header->request.context_id = 0;
header->request.opnum = ProcNum;
if (has_object) {
header->common.flags |= RPC_FLG_OBJECT_UUID;
header->common.frag_len += sizeof(UUID);
memcpy(&header->request + 1, ObjectUuid, sizeof(UUID));
}
return header;
}
RpcPktHdr *RPCRT4_BuildResponseHeader(unsigned long DataRepresentation,
unsigned long BufferLength)
{
RpcPktHdr *header;
header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(header->response));
if (header == NULL) {
return NULL;
}
RPCRT4_BuildCommonHeader(header, PKT_RESPONSE, DataRepresentation);
header->common.frag_len = sizeof(header->response);
header->response.alloc_hint = BufferLength;
return header;
}
RpcPktHdr *RPCRT4_BuildFaultHeader(unsigned long DataRepresentation,
RPC_STATUS Status)
{
RpcPktHdr *header;
header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(header->fault));
if (header == NULL) {
return NULL;
}
RPCRT4_BuildCommonHeader(header, PKT_FAULT, DataRepresentation);
header->common.frag_len = sizeof(header->fault);
header->fault.status = Status;
return header;
}
RpcPktHdr *RPCRT4_BuildBindHeader(unsigned long DataRepresentation,
unsigned short MaxTransmissionSize,
unsigned short MaxReceiveSize,
RPC_SYNTAX_IDENTIFIER *AbstractId,
RPC_SYNTAX_IDENTIFIER *TransferId)
{
RpcPktHdr *header;
header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(header->bind));
if (header == NULL) {
return NULL;
}
RPCRT4_BuildCommonHeader(header, PKT_BIND, DataRepresentation);
header->common.frag_len = sizeof(header->bind);
header->bind.max_tsize = MaxTransmissionSize;
header->bind.max_rsize = MaxReceiveSize;
header->bind.num_elements = 1;
header->bind.num_syntaxes = 1;
memcpy(&header->bind.abstract, AbstractId, sizeof(RPC_SYNTAX_IDENTIFIER));
memcpy(&header->bind.transfer, TransferId, sizeof(RPC_SYNTAX_IDENTIFIER));
return header;
}
RpcPktHdr *RPCRT4_BuildBindNackHeader(unsigned long DataRepresentation,
unsigned char RpcVersion,
unsigned char RpcVersionMinor)
{
RpcPktHdr *header;
header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(header->bind_nack));
if (header == NULL) {
return NULL;
}
RPCRT4_BuildCommonHeader(header, PKT_BIND_NACK, DataRepresentation);
header->common.frag_len = sizeof(header->bind_nack);
header->bind_nack.protocols_count = 1;
header->bind_nack.protocols[0].rpc_ver = RpcVersion;
header->bind_nack.protocols[0].rpc_ver_minor = RpcVersionMinor;
return header;
}
RpcPktHdr *RPCRT4_BuildBindAckHeader(unsigned long DataRepresentation,
unsigned short MaxTransmissionSize,
unsigned short MaxReceiveSize,
LPSTR ServerAddress,
unsigned long Result,
unsigned long Reason,
RPC_SYNTAX_IDENTIFIER *TransferId)
{
RpcPktHdr *header;
unsigned long header_size;
RpcAddressString *server_address;
RpcResults *results;
RPC_SYNTAX_IDENTIFIER *transfer_id;
header_size = sizeof(header->bind_ack) + sizeof(RpcResults) +
sizeof(RPC_SYNTAX_IDENTIFIER) + sizeof(RpcAddressString) +
strlen(ServerAddress);
header = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, header_size);
if (header == NULL) {
return NULL;
}
RPCRT4_BuildCommonHeader(header, PKT_BIND_ACK, DataRepresentation);
header->common.frag_len = header_size;
header->bind_ack.max_tsize = MaxTransmissionSize;
header->bind_ack.max_rsize = MaxReceiveSize;
server_address = (RpcAddressString*)(&header->bind_ack + 1);
server_address->length = strlen(ServerAddress) + 1;
strcpy(server_address->string, ServerAddress);
results = (RpcResults*)((ULONG_PTR)server_address + sizeof(RpcAddressString) + server_address->length - 1);
results->num_results = 1;
results->results[0].result = Result;
results->results[0].reason = Reason;
transfer_id = (RPC_SYNTAX_IDENTIFIER*)(results + 1);
memcpy(transfer_id, TransferId, sizeof(RPC_SYNTAX_IDENTIFIER));
return header;
}
VOID RPCRT4_FreeHeader(RpcPktHdr *Header)
{
HeapFree(GetProcessHeap(), 0, Header);
}
/***********************************************************************
* RPCRT4_Send (internal)
*
* Transmit a packet over connection in acceptable fragments.
*/
RPC_STATUS RPCRT4_Send(RpcConnection *Connection, RpcPktHdr *Header,
void *Buffer, unsigned int BufferLength)
{
PUCHAR buffer_pos;
DWORD hdr_size, count;
buffer_pos = Buffer;
/* The packet building functions save the packet header size, so we can use it. */
hdr_size = Header->common.frag_len;
Header->common.flags |= RPC_FLG_FIRST;
Header->common.flags &= ~RPC_FLG_LAST;
while (!(Header->common.flags & RPC_FLG_LAST)) {
/* decide if we need to split the packet into fragments */
if ((BufferLength + hdr_size) <= Connection->MaxTransmissionSize) {
Header->common.flags |= RPC_FLG_LAST;
Header->common.frag_len = BufferLength + hdr_size;
} else {
Header->common.frag_len = Connection->MaxTransmissionSize;
buffer_pos += Header->common.frag_len - hdr_size;
BufferLength -= Header->common.frag_len - hdr_size;
}
/* transmit packet header */
if (!WriteFile(Connection->conn, Header, hdr_size, &count, NULL)) {
WARN("WriteFile failed with error %ld\n", GetLastError());
return GetLastError();
}
/* fragment consisted of header only and is the last one */
if (hdr_size == Header->common.frag_len &&
Header->common.flags & RPC_FLG_LAST) {
return RPC_S_OK;
}
/* send the fragment data */
if (!WriteFile(Connection->conn, buffer_pos, Header->common.frag_len - hdr_size, &count, NULL)) {
WARN("WriteFile failed with error %ld\n", GetLastError());
return GetLastError();
}
Header->common.flags &= ~RPC_FLG_FIRST;
}
return RPC_S_OK;
}
/***********************************************************************
* RPCRT4_Receive (internal)
*
* Receive a packet from connection and merge the fragments.
*/
RPC_STATUS RPCRT4_Receive(RpcConnection *Connection, RpcPktHdr **Header,
PRPC_MESSAGE pMsg)
{
RPC_STATUS status;
DWORD dwRead, hdr_length;
unsigned short first_flag;
unsigned long data_length;
unsigned long buffer_length;
unsigned char *buffer_ptr;
RpcPktCommonHdr common_hdr;
*Header = NULL;
TRACE("(%p, %p, %p)\n", Connection, Header, pMsg);
/* read packet common header */
if (!ReadFile(Connection->conn, &common_hdr, sizeof(common_hdr), &dwRead, NULL)) {
if (GetLastError() != ERROR_MORE_DATA) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
}
if (dwRead != sizeof(common_hdr)) {
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
/* verify if the header really makes sense */
if (common_hdr.rpc_ver != RPC_VER_MAJOR ||
common_hdr.rpc_ver_minor != RPC_VER_MINOR) {
WARN("unhandled packet version\n");
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
hdr_length = RPCRT4_GetHeaderSize((RpcPktHdr*)&common_hdr);
if (hdr_length == 0) {
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
*Header = HeapAlloc(GetProcessHeap(), 0, hdr_length);
memcpy(*Header, &common_hdr, sizeof(common_hdr));
/* read the rest of packet header */
if (!ReadFile(Connection->conn, &(*Header)->common + 1,
hdr_length - sizeof(common_hdr), &dwRead, NULL)) {
if (GetLastError() != ERROR_MORE_DATA) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
}
if (dwRead != hdr_length - sizeof(common_hdr)) {
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
/* read packet body */
switch (common_hdr.ptype) {
case PKT_RESPONSE:
pMsg->BufferLength = (*Header)->response.alloc_hint;
break;
case PKT_REQUEST:
pMsg->BufferLength = (*Header)->request.alloc_hint;
break;
default:
pMsg->BufferLength = common_hdr.frag_len - hdr_length;
}
status = I_RpcGetBuffer(pMsg);
if (status != RPC_S_OK) goto fail;
first_flag = RPC_FLG_FIRST;
buffer_length = 0;
buffer_ptr = pMsg->Buffer;
while (buffer_length < pMsg->BufferLength)
{
data_length = (*Header)->common.frag_len - hdr_length;
if (((*Header)->common.flags & RPC_FLG_FIRST) != first_flag ||
data_length + buffer_length > pMsg->BufferLength) {
TRACE("invalid packet flags or buffer length\n");
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
if (data_length == 0) dwRead = 0; else
if (!ReadFile(Connection->conn, buffer_ptr, data_length, &dwRead, NULL)) {
if (GetLastError() != ERROR_MORE_DATA) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
}
if (dwRead != data_length) {
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
if (buffer_length == pMsg->BufferLength &&
((*Header)->common.flags & RPC_FLG_LAST) == 0) {
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
buffer_length += data_length;
if (buffer_length < pMsg->BufferLength) {
TRACE("next header\n");
/* read the header of next packet */
if (!ReadFile(Connection->conn, *Header, hdr_length, &dwRead, NULL)) {
if (GetLastError() != ERROR_MORE_DATA) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = GetLastError();
goto fail;
}
}
if (dwRead != hdr_length) {
WARN("invalid packet header size (%ld)\n", dwRead);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
buffer_ptr += data_length;
first_flag = 0;
}
}
/* success */
status = RPC_S_OK;
fail:
if (status != RPC_S_OK && *Header) {
RPCRT4_FreeHeader(*Header);
*Header = NULL;
}
return status;
}
/***********************************************************************
* I_RpcGetBuffer [RPCRT4.@]
*/
@ -74,7 +463,9 @@ RPC_STATUS WINAPI I_RpcFreeBuffer(PRPC_MESSAGE pMsg)
{
TRACE("(%p) Buffer=%p\n", pMsg, pMsg->Buffer);
/* FIXME: pfnFree? */
if (pMsg->Buffer != NULL) {
HeapFree(GetProcessHeap(), 0, pMsg->Buffer);
}
pMsg->Buffer = NULL;
return S_OK;
}
@ -88,67 +479,43 @@ RPC_STATUS WINAPI I_RpcSend(PRPC_MESSAGE pMsg)
RpcConnection* conn;
RPC_CLIENT_INTERFACE* cif = NULL;
RPC_SERVER_INTERFACE* sif = NULL;
UUID* obj;
UUID* act;
RPC_STATUS status;
RpcPktHdr hdr;
DWORD count;
RpcPktHdr *hdr;
TRACE("(%p)\n", pMsg);
if (!bind) return RPC_S_INVALID_BINDING;
status = RPCRT4_OpenBinding(bind, &conn);
if (status != RPC_S_OK) return status;
obj = &bind->ObjectUuid;
act = &bind->ActiveUuid;
if (bind->server) {
sif = pMsg->RpcInterfaceInformation;
if (!sif) return RPC_S_INTERFACE_NOT_FOUND; /* ? */
status = RPCRT4_OpenBinding(bind, &conn, &sif->TransferSyntax,
&sif->InterfaceId);
} else {
cif = pMsg->RpcInterfaceInformation;
if (!cif) return RPC_S_INTERFACE_NOT_FOUND; /* ? */
status = RPCRT4_OpenBinding(bind, &conn, &cif->TransferSyntax,
&cif->InterfaceId);
}
/* initialize packet header */
memset(&hdr, 0, sizeof(hdr));
hdr.rpc_ver = 4;
hdr.ptype = bind->server
? ((pMsg->RpcFlags & WINE_RPCFLAG_EXCEPTION) ? PKT_FAULT : PKT_RESPONSE)
: PKT_REQUEST;
hdr.object = *obj; /* FIXME: IIRC iff no object, the header structure excludes this elt */
hdr.if_id = (bind->server) ? sif->InterfaceId.SyntaxGUID : cif->InterfaceId.SyntaxGUID;
hdr.if_vers =
(bind->server) ?
MAKELONG(sif->InterfaceId.SyntaxVersion.MinorVersion, sif->InterfaceId.SyntaxVersion.MajorVersion) :
MAKELONG(cif->InterfaceId.SyntaxVersion.MinorVersion, cif->InterfaceId.SyntaxVersion.MajorVersion);
hdr.act_id = *act;
hdr.opnum = pMsg->ProcNum;
/* only the low-order 3 octets of the DataRepresentation go in the header */
hdr.drep[0] = LOBYTE(LOWORD(pMsg->DataRepresentation));
hdr.drep[1] = HIBYTE(LOWORD(pMsg->DataRepresentation));
hdr.drep[2] = LOBYTE(HIWORD(pMsg->DataRepresentation));
hdr.len = pMsg->BufferLength;
if (status != RPC_S_OK) return status;
/* transmit packet */
if (!WriteFile(conn->conn, &hdr, sizeof(hdr), &count, NULL)) {
WARN("WriteFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
if (bind->server) {
if (pMsg->RpcFlags & WINE_RPCFLAG_EXCEPTION) {
hdr = RPCRT4_BuildFaultHeader(pMsg->DataRepresentation,
RPC_S_CALL_FAILED);
} else {
hdr = RPCRT4_BuildResponseHeader(pMsg->DataRepresentation,
pMsg->BufferLength);
}
} else {
hdr = RPCRT4_BuildRequestHeader(pMsg->DataRepresentation,
pMsg->BufferLength, pMsg->ProcNum,
&bind->ObjectUuid);
}
if (!pMsg->BufferLength)
{
status = RPC_S_OK;
goto fail;
}
status = RPCRT4_Send(conn, hdr, pMsg->Buffer, pMsg->BufferLength);
if (!WriteFile(conn->conn, pMsg->Buffer, pMsg->BufferLength, &count, NULL)) {
WARN("WriteFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
RPCRT4_FreeHeader(hdr);
/* success */
if (!bind->server) {
@ -158,7 +525,6 @@ RPC_STATUS WINAPI I_RpcSend(PRPC_MESSAGE pMsg)
}
RPCRT4_CloseBinding(bind, conn);
status = RPC_S_OK;
fail:
return status;
}
@ -170,10 +536,10 @@ RPC_STATUS WINAPI I_RpcReceive(PRPC_MESSAGE pMsg)
{
RpcBinding* bind = (RpcBinding*)pMsg->Handle;
RpcConnection* conn;
UUID* act;
RPC_CLIENT_INTERFACE* cif = NULL;
RPC_SERVER_INTERFACE* sif = NULL;
RPC_STATUS status;
RpcPktHdr hdr;
DWORD dwRead;
RpcPktHdr *hdr = NULL;
TRACE("(%p)\n", pMsg);
if (!bind) return RPC_S_INVALID_BINDING;
@ -182,73 +548,29 @@ RPC_STATUS WINAPI I_RpcReceive(PRPC_MESSAGE pMsg)
conn = pMsg->ReservedForRuntime;
pMsg->ReservedForRuntime = NULL;
} else {
status = RPCRT4_OpenBinding(bind, &conn);
if (bind->server) {
sif = pMsg->RpcInterfaceInformation;
if (!sif) return RPC_S_INTERFACE_NOT_FOUND; /* ? */
status = RPCRT4_OpenBinding(bind, &conn, &sif->TransferSyntax,
&sif->InterfaceId);
} else {
cif = pMsg->RpcInterfaceInformation;
if (!cif) return RPC_S_INTERFACE_NOT_FOUND; /* ? */
status = RPCRT4_OpenBinding(bind, &conn, &cif->TransferSyntax,
&cif->InterfaceId);
}
if (status != RPC_S_OK) return status;
}
act = &bind->ActiveUuid;
for (;;) {
/* read packet header */
#ifdef OVERLAPPED_WORKS
if (!ReadFile(conn->conn, &hdr, sizeof(hdr), &dwRead, &conn->ovl)) {
DWORD err = GetLastError();
if (err != ERROR_IO_PENDING) {
WARN("ReadFile failed with error %ld\n", err);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
if (!GetOverlappedResult(conn->conn, &conn->ovl, &dwRead, TRUE)) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
}
#else
if (!ReadFile(conn->conn, &hdr, sizeof(hdr), &dwRead, NULL)) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
#endif
if (dwRead != sizeof(hdr)) {
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
/* read packet body */
pMsg->BufferLength = hdr.len;
status = I_RpcGetBuffer(pMsg);
if (status != RPC_S_OK) goto fail;
if (!pMsg->BufferLength) dwRead = 0; else
#ifdef OVERLAPPED_WORKS
if (!ReadFile(conn->conn, pMsg->Buffer, hdr.len, &dwRead, &conn->ovl)) {
if (GetLastError() != ERROR_IO_PENDING) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
if (!GetOverlappedResult(conn->conn, &conn->ovl, &dwRead, TRUE)) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
}
#else
if (!ReadFile(conn->conn, pMsg->Buffer, hdr.len, &dwRead, NULL)) {
WARN("ReadFile failed with error %ld\n", GetLastError());
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
#endif
if (dwRead != hdr.len) {
status = RPC_S_PROTOCOL_ERROR;
status = RPCRT4_Receive(conn, &hdr, pMsg);
if (status != RPC_S_OK) {
WARN("receive failed with error %lx\n", status);
goto fail;
}
status = RPC_S_PROTOCOL_ERROR;
switch (hdr.ptype) {
switch (hdr->common.ptype) {
case PKT_RESPONSE:
if (bind->server) goto fail;
break;
@ -257,6 +579,7 @@ RPC_STATUS WINAPI I_RpcReceive(PRPC_MESSAGE pMsg)
break;
case PKT_FAULT:
pMsg->RpcFlags |= WINE_RPCFLAG_EXCEPTION;
ERR ("we got fault packet with status %lx\n", hdr->fault.status);
status = RPC_S_CALL_FAILED; /* ? */
goto fail;
default:
@ -266,10 +589,10 @@ RPC_STATUS WINAPI I_RpcReceive(PRPC_MESSAGE pMsg)
/* success */
status = RPC_S_OK;
/* FIXME: check destination, etc? */
break;
}
fail:
if (hdr) {
RPCRT4_FreeHeader(hdr);
}
RPCRT4_CloseBinding(bind, conn);
return status;
}

38
dlls/rpcrt4/rpc_message.h Normal file
View File

@ -0,0 +1,38 @@
/*
* RPC message API
*
* Copyright 2004 Filip Navara
*
* 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
*/
#ifndef __WINE_RPC_MESSAGE_H
#define __WINE_RPC_MESSAGE_H
#include "wine/rpcss_shared.h"
#include "rpc_defs.h"
VOID RPCRT4_BuildCommonHeader(RpcPktHdr *Header, unsigned char PacketType, unsigned long DataRepresentation);
RpcPktHdr *RPCRT4_BuildRequestHeader(unsigned long DataRepresentation, unsigned long BufferLength, unsigned short ProcNum, UUID *ObjectUuid);
RpcPktHdr *RPCRT4_BuildResponseHeader(unsigned long DataRepresentation, unsigned long BufferLength);
RpcPktHdr *RPCRT4_BuildFaultHeader(unsigned long DataRepresentation, RPC_STATUS Status);
RpcPktHdr *RPCRT4_BuildBindHeader(unsigned long DataRepresentation, unsigned short MaxTransmissionSize, unsigned short MaxReceiveSize, RPC_SYNTAX_IDENTIFIER *AbstractId, RPC_SYNTAX_IDENTIFIER *TransferId);
RpcPktHdr *RPCRT4_BuildBindNackHeader(unsigned long DataRepresentation, unsigned char RpcVersion, unsigned char RpcVersionMinor);
RpcPktHdr *RPCRT4_BuildBindAckHeader(unsigned long DataRepresentation, unsigned short MaxTransmissionSize, unsigned short MaxReceiveSize, LPSTR ServerAddress, unsigned long Result, unsigned long Reason, RPC_SYNTAX_IDENTIFIER *TransferId);
VOID RPCRT4_FreeHeader(RpcPktHdr *Header);
RPC_STATUS RPCRT4_Send(RpcConnection *Connection, RpcPktHdr *Header, void *Buffer, unsigned int BufferLength);
RPC_STATUS RPCRT4_Receive(RpcConnection *Connection, RpcPktHdr **Header, PRPC_MESSAGE pMsg);
#endif

211
dlls/rpcrt4/rpc_server.c
View File

@ -2,6 +2,7 @@
* RPC server API
*
* Copyright 2001 Ove Kåven, TransGaming Technologies
* Copyright 2004 Filip Navara
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -36,6 +37,7 @@
#include "ntstatus.h"
#include "rpc.h"
#include "rpcndr.h"
#include "excpt.h"
#include "wine/debug.h"
@ -43,6 +45,7 @@
#include "rpc_server.h"
#include "rpc_misc.h"
#include "rpc_message.h"
#include "rpc_defs.h"
#define MAX_THREADS 128
@ -53,8 +56,8 @@ typedef struct _RpcPacket
{
struct _RpcPacket* next;
struct _RpcConnection* conn;
RpcPktHdr hdr;
void* buf;
RpcPktHdr* hdr;
RPC_MESSAGE* msg;
} RpcPacket;
typedef struct _RpcObjTypeMap
@ -131,18 +134,21 @@ inline static UUID *LookupObjType(UUID *ObjUuid)
return &uuid_nil;
}
static RpcServerInterface* RPCRT4_find_interface(UUID* object, UUID* if_id)
static RpcServerInterface* RPCRT4_find_interface(UUID* object,
RPC_SYNTAX_IDENTIFIER* if_id,
BOOL check_object)
{
UUID* MgrType = NULL;
RpcServerInterface* cif = NULL;
RPC_STATUS status;
if (check_object)
MgrType = LookupObjType(object);
EnterCriticalSection(&server_cs);
cif = ifs;
while (cif) {
if (UuidEqual(if_id, &cif->If->InterfaceId.SyntaxGUID, &status) &&
UuidEqual(MgrType, &cif->MgrTypeUuid, &status) &&
if (!memcmp(if_id, &cif->If->InterfaceId, sizeof(RPC_SYNTAX_IDENTIFIER)) &&
(check_object == FALSE || UuidEqual(MgrType, &cif->MgrTypeUuid, &status)) &&
(std_listen || (cif->Flags & RPC_IF_AUTOLISTEN))) break;
cif = cif->Next;
}
@ -199,82 +205,132 @@ static WINE_EXCEPTION_FILTER(rpc_filter)
return EXCEPTION_EXECUTE_HANDLER;
}
static void RPCRT4_process_packet(RpcConnection* conn, RpcPktHdr* hdr, void* buf)
static void RPCRT4_process_packet(RpcConnection* conn, RpcPktHdr* hdr, RPC_MESSAGE* msg)
{
RpcBinding* pbind;
RPC_MESSAGE msg;
RpcServerInterface* sif;
RPC_DISPATCH_FUNCTION func;
packet_state state;
UUID *object_uuid;
RpcPktHdr *response;
void *buf = msg->Buffer;
RPC_STATUS status;
state.msg = &msg;
state.msg = msg;
state.buf = buf;
TlsSetValue(worker_tls, &state);
memset(&msg, 0, sizeof(msg));
msg.BufferLength = hdr->len;
msg.Buffer = buf;
sif = RPCRT4_find_interface(&hdr->object, &hdr->if_id);
if (sif) {
TRACE("packet received for interface %s\n", debugstr_guid(&hdr->if_id));
msg.RpcInterfaceInformation = sif->If;
/* copy the endpoint vector from sif to msg so that midl-generated code will use it */
msg.ManagerEpv = sif->MgrEpv;
/* create temporary binding for dispatch */
RPCRT4_MakeBinding(&pbind, conn);
RPCRT4_SetBindingObject(pbind, &hdr->object);
msg.Handle = (RPC_BINDING_HANDLE)pbind;
/* process packet */
switch (hdr->ptype) {
switch (hdr->common.ptype) {
case PKT_BIND:
TRACE("got bind packet\n");
/* FIXME: do more checks! */
if (hdr->bind.max_tsize < RPC_MIN_PACKET_SIZE ||
!UuidIsNil(&conn->ActiveInterface.SyntaxGUID, &status)) {
sif = NULL;
} else {
sif = RPCRT4_find_interface(NULL, &hdr->bind.abstract, FALSE);
}
if (sif == NULL) {
TRACE("rejecting bind request\n");
/* Report failure to client. */
response = RPCRT4_BuildBindNackHeader(NDR_LOCAL_DATA_REPRESENTATION,
RPC_VER_MAJOR, RPC_VER_MINOR);
} else {
TRACE("accepting bind request\n");
/* accept. */
response = RPCRT4_BuildBindAckHeader(NDR_LOCAL_DATA_REPRESENTATION,
RPC_MAX_PACKET_SIZE,
RPC_MAX_PACKET_SIZE,
conn->Endpoint,
RESULT_ACCEPT, NO_REASON,
&sif->If->TransferSyntax);
/* save the interface for later use */
conn->ActiveInterface = hdr->bind.abstract;
conn->MaxTransmissionSize = hdr->bind.max_tsize;
}
if (RPCRT4_Send(conn, response, NULL, 0) != RPC_S_OK)
goto fail;
break;
case PKT_REQUEST:
TRACE("got request packet\n");
/* fail if the connection isn't bound with an interface */
if (UuidIsNil(&conn->ActiveInterface.SyntaxGUID, &status)) {
response = RPCRT4_BuildFaultHeader(NDR_LOCAL_DATA_REPRESENTATION,
status);
RPCRT4_Send(conn, response, NULL, 0);
break;
}
if (hdr->common.flags & RPC_FLG_OBJECT_UUID) {
object_uuid = (UUID*)(&hdr->request + 1);
} else {
object_uuid = NULL;
}
sif = RPCRT4_find_interface(object_uuid, &conn->ActiveInterface, TRUE);
msg->RpcInterfaceInformation = sif->If;
/* copy the endpoint vector from sif to msg so that midl-generated code will use it */
msg->ManagerEpv = sif->MgrEpv;
if (object_uuid != NULL) {
RPCRT4_SetBindingObject(msg->Handle, object_uuid);
}
/* find dispatch function */
msg.ProcNum = hdr->opnum;
msg->ProcNum = hdr->request.opnum;
if (sif->Flags & RPC_IF_OLE) {
/* native ole32 always gives us a dispatch table with a single entry
* (I assume that's a wrapper for IRpcStubBuffer::Invoke) */
func = *sif->If->DispatchTable->DispatchTable;
} else {
if (msg.ProcNum >= sif->If->DispatchTable->DispatchTableCount) {
if (msg->ProcNum >= sif->If->DispatchTable->DispatchTableCount) {
ERR("invalid procnum\n");
func = NULL;
}
func = sif->If->DispatchTable->DispatchTable[msg.ProcNum];
func = sif->If->DispatchTable->DispatchTable[msg->ProcNum];
}
/* put in the drep. FIXME: is this more universally applicable?
perhaps we should move this outward... */
msg.DataRepresentation =
MAKELONG( MAKEWORD(hdr->drep[0], hdr->drep[1]),
MAKEWORD(hdr->drep[2], 0));
msg->DataRepresentation =
MAKELONG( MAKEWORD(hdr->common.drep[0], hdr->common.drep[1]),
MAKEWORD(hdr->common.drep[2], hdr->common.drep[3]));
/* dispatch */
__TRY {
if (func) func(&msg);
if (func) func(msg);
} __EXCEPT(rpc_filter) {
/* failure packet was created in rpc_filter */
} __ENDTRY
/* send response packet */
I_RpcSend(&msg);
I_RpcSend(msg);
msg->RpcInterfaceInformation = NULL;
break;
default:
ERR("unknown packet type\n");
FIXME("unhandled packet type\n");
break;
}
RPCRT4_DestroyBinding(pbind);
msg.Handle = 0;
msg.RpcInterfaceInformation = NULL;
}
else {
ERR("got RPC packet to unregistered interface %s\n", debugstr_guid(&hdr->if_id));
}
fail:
/* clean up */
if (msg.Buffer == buf) msg.Buffer = NULL;
if (msg->Buffer == buf) msg->Buffer = NULL;
TRACE("freeing Buffer=%p\n", buf);
HeapFree(GetProcessHeap(), 0, buf);
I_RpcFreeBuffer(&msg);
msg.Buffer = NULL;
RPCRT4_DestroyBinding(msg->Handle);
msg->Handle = 0;
I_RpcFreeBuffer(msg);
msg->Buffer = NULL;
RPCRT4_FreeHeader(hdr);
TlsSetValue(worker_tls, NULL);
}
@ -295,7 +351,7 @@ static DWORD CALLBACK RPCRT4_worker_thread(LPVOID the_arg)
if (!pkt) continue;
InterlockedDecrement(&worker_free);
for (;;) {
RPCRT4_process_packet(pkt->conn, &pkt->hdr, pkt->buf);
RPCRT4_process_packet(pkt->conn, pkt->hdr, pkt->msg);
HeapFree(GetProcessHeap(), 0, pkt);
/* try to grab another packet here without waiting
* on the semaphore, in case it hits max */
@ -329,73 +385,42 @@ static void RPCRT4_create_worker_if_needed(void)
static DWORD CALLBACK RPCRT4_io_thread(LPVOID the_arg)
{
RpcConnection* conn = (RpcConnection*)the_arg;
RpcPktHdr hdr;
DWORD dwRead;
void* buf = NULL;
RpcPktHdr *hdr;
RpcBinding *pbind;
RPC_MESSAGE *msg;
RPC_STATUS status;
RpcPacket *packet;
TRACE("(%p)\n", conn);
for (;;) {
/* read packet header */
#ifdef OVERLAPPED_WORKS
if (!ReadFile(conn->conn, &hdr, sizeof(hdr), &dwRead, &conn->ovl)) {
DWORD err = GetLastError();
if (err != ERROR_IO_PENDING) {
TRACE("connection lost, error=%08lx\n", err);
break;
}
if (!GetOverlappedResult(conn->conn, &conn->ovl, &dwRead, TRUE)) break;
}
#else
if (!ReadFile(conn->conn, &hdr, sizeof(hdr), &dwRead, NULL)) {
TRACE("connection lost, error=%08lx\n", GetLastError());
break;
}
#endif
if (dwRead != sizeof(hdr)) {
if (dwRead) TRACE("protocol error: <hdrsz == %d, dwRead == %lu>\n", sizeof(hdr), dwRead);
break;
}
msg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RPC_MESSAGE));
/* read packet body */
buf = HeapAlloc(GetProcessHeap(), 0, hdr.len);
TRACE("receiving payload=%d\n", hdr.len);
if (!hdr.len) dwRead = 0; else
#ifdef OVERLAPPED_WORKS
if (!ReadFile(conn->conn, buf, hdr.len, &dwRead, &conn->ovl)) {
DWORD err = GetLastError();
if (err != ERROR_IO_PENDING) {
TRACE("connection lost, error=%08lx\n", err);
break;
}
if (!GetOverlappedResult(conn->conn, &conn->ovl, &dwRead, TRUE)) break;
}
#else
if (!ReadFile(conn->conn, buf, hdr.len, &dwRead, NULL)) {
TRACE("connection lost, error=%08lx\n", GetLastError());
break;
}
#endif
if (dwRead != hdr.len) {
TRACE("protocol error: <bodylen == %d, dwRead == %lu>\n", hdr.len, dwRead);
/* create temporary binding for dispatch, it will be freed in
* RPCRT4_process_packet */
RPCRT4_MakeBinding(&pbind, conn);
msg->Handle = (RPC_BINDING_HANDLE)pbind;
status = RPCRT4_Receive(conn, &hdr, msg);
if (status != RPC_S_OK) {
WARN("receive failed with error %lx\n", status);
break;
}
#if 0
RPCRT4_process_packet(conn, &hdr, buf);
RPCRT4_process_packet(conn, hdr, msg);
#else
packet = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcPacket));
packet->conn = conn;
packet->hdr = hdr;
packet->buf = buf;
packet->msg = msg;
RPCRT4_create_worker_if_needed();
RPCRT4_push_packet(packet);
ReleaseSemaphore(server_sem, 1, NULL);
#endif
buf = NULL;
msg = NULL;
}
if (buf) HeapFree(GetProcessHeap(), 0, buf);
if (msg) HeapFree(GetProcessHeap(), 0, msg);
RPCRT4_DestroyConnection(conn);
return 0;
}