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wine/dlls/rpcrt4/rpc_transport.c

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/*
* RPC transport layer
*
* Copyright 2001 Ove Kåven, TransGaming Technologies
* Copyright 2003 Mike Hearn
* Copyright 2004 Filip Navara
* Copyright 2006 Mike McCormack
* Copyright 2006 Damjan Jovanovic
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include "config.h"
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include <sys/types.h>
#if defined(__MINGW32__) || defined (_MSC_VER)
# include <ws2tcpip.h>
# ifndef EADDRINUSE
# define EADDRINUSE WSAEADDRINUSE
# endif
# ifndef EAGAIN
# define EAGAIN WSAEWOULDBLOCK
# endif
# undef errno
# define errno WSAGetLastError()
#else
# include <errno.h>
# ifdef HAVE_UNISTD_H
# include <unistd.h>
# endif
# include <fcntl.h>
# ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
# endif
# ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
# endif
# ifdef HAVE_NETINET_TCP_H
# include <netinet/tcp.h>
# endif
# ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
# endif
# ifdef HAVE_NETDB_H
# include <netdb.h>
# endif
# ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
# endif
# ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
# endif
# ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
# endif
# define closesocket close
# define ioctlsocket ioctl
#endif /* defined(__MINGW32__) || defined (_MSC_VER) */
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winerror.h"
#include "wininet.h"
#include "winternl.h"
#include "wine/unicode.h"
#include "rpc.h"
#include "rpcndr.h"
#include "wine/debug.h"
#include "rpc_binding.h"
#include "rpc_assoc.h"
#include "rpc_message.h"
#include "rpc_server.h"
#include "epm_towers.h"
#ifndef SOL_TCP
# define SOL_TCP IPPROTO_TCP
#endif
#define DEFAULT_NCACN_HTTP_TIMEOUT (60 * 1000)
WINE_DEFAULT_DEBUG_CHANNEL(rpc);
static RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection);
/**** ncacn_np support ****/
typedef struct _RpcConnection_np
{
RpcConnection common;
HANDLE pipe;
OVERLAPPED ovl;
BOOL listening;
} RpcConnection_np;
static RpcConnection *rpcrt4_conn_np_alloc(void)
{
RpcConnection_np *npc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_np));
if (npc)
{
npc->pipe = NULL;
memset(&npc->ovl, 0, sizeof(npc->ovl));
npc->listening = FALSE;
}
return &npc->common;
}
static RPC_STATUS rpcrt4_conn_listen_pipe(RpcConnection_np *npc)
{
if (npc->listening)
return RPC_S_OK;
npc->listening = TRUE;
for (;;)
{
if (ConnectNamedPipe(npc->pipe, &npc->ovl))
return RPC_S_OK;
switch(GetLastError())
{
case ERROR_PIPE_CONNECTED:
SetEvent(npc->ovl.hEvent);
return RPC_S_OK;
case ERROR_IO_PENDING:
/* will be completed in rpcrt4_protseq_np_wait_for_new_connection */
return RPC_S_OK;
case ERROR_NO_DATA_DETECTED:
/* client has disconnected, retry */
DisconnectNamedPipe( npc->pipe );
break;
default:
npc->listening = FALSE;
WARN("Couldn't ConnectNamedPipe (error was %d)\n", GetLastError());
return RPC_S_OUT_OF_RESOURCES;
}
}
}
static RPC_STATUS rpcrt4_conn_create_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);
if (npc->pipe == INVALID_HANDLE_VALUE) {
WARN("CreateNamedPipe failed with error %d\n", GetLastError());
if (GetLastError() == ERROR_FILE_EXISTS)
return RPC_S_DUPLICATE_ENDPOINT;
else
return RPC_S_CANT_CREATE_ENDPOINT;
}
memset(&npc->ovl, 0, sizeof(npc->ovl));
npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
/* Note: we don't call ConnectNamedPipe here because it must be done in the
* server thread as the thread must be alertable */
return RPC_S_OK;
}
static RPC_STATUS rpcrt4_conn_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) {
DWORD dwFlags = 0;
if (Connection->QOS)
{
dwFlags = SECURITY_SQOS_PRESENT;
switch (Connection->QOS->qos->ImpersonationType)
{
case RPC_C_IMP_LEVEL_DEFAULT:
/* FIXME: what to do here? */
break;
case RPC_C_IMP_LEVEL_ANONYMOUS:
dwFlags |= SECURITY_ANONYMOUS;
break;
case RPC_C_IMP_LEVEL_IDENTIFY:
dwFlags |= SECURITY_IDENTIFICATION;
break;
case RPC_C_IMP_LEVEL_IMPERSONATE:
dwFlags |= SECURITY_IMPERSONATION;
break;
case RPC_C_IMP_LEVEL_DELEGATE:
dwFlags |= SECURITY_DELEGATION;
break;
}
if (Connection->QOS->qos->IdentityTracking == RPC_C_QOS_IDENTIFY_DYNAMIC)
dwFlags |= SECURITY_CONTEXT_TRACKING;
}
pipe = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, dwFlags, 0);
if (pipe != INVALID_HANDLE_VALUE) break;
err = GetLastError();
if (err == ERROR_PIPE_BUSY) {
TRACE("connection failed, error=%x\n", err);
return RPC_S_SERVER_TOO_BUSY;
}
if (!wait || !WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
err = GetLastError();
WARN("connection failed, error=%x\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 const char 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 = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
r = rpcrt4_conn_open_pipe(Connection, pname, TRUE);
I_RpcFree(pname);
return r;
}
static RPC_STATUS rpcrt4_protseq_ncalrpc_open_endpoint(RpcServerProtseq* protseq, const char *endpoint)
{
static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
RPC_STATUS r;
LPSTR pname;
RpcConnection *Connection;
char generated_endpoint[22];
if (!endpoint)
{
static LONG lrpc_nameless_id;
DWORD process_id = GetCurrentProcessId();
ULONG id = InterlockedIncrement(&lrpc_nameless_id);
snprintf(generated_endpoint, sizeof(generated_endpoint),
"LRPC%08x.%08x", process_id, id);
endpoint = generated_endpoint;
}
r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
endpoint, NULL, NULL, NULL);
if (r != RPC_S_OK)
return r;
/* protseq=ncalrpc: supposed to use NT LPC ports,
* but we'll implement it with named pipes for now */
pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
r = rpcrt4_conn_create_pipe(Connection, pname);
I_RpcFree(pname);
EnterCriticalSection(&protseq->cs);
Connection->Next = protseq->conn;
protseq->conn = Connection;
LeaveCriticalSection(&protseq->cs);
return r;
}
static RPC_STATUS rpcrt4_ncacn_np_open(RpcConnection* Connection)
{
RpcConnection_np *npc = (RpcConnection_np *) Connection;
static const char prefix[] = "\\\\.";
RPC_STATUS r;
LPSTR pname;
/* already connected? */
if (npc->pipe)
return RPC_S_OK;
/* protseq=ncacn_np: named pipes */
pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
r = rpcrt4_conn_open_pipe(Connection, pname, FALSE);
I_RpcFree(pname);
return r;
}
static RPC_STATUS rpcrt4_protseq_ncacn_np_open_endpoint(RpcServerProtseq *protseq, const char *endpoint)
{
static const char prefix[] = "\\\\.";
RPC_STATUS r;
LPSTR pname;
RpcConnection *Connection;
char generated_endpoint[21];
if (!endpoint)
{
static LONG np_nameless_id;
DWORD process_id = GetCurrentProcessId();
ULONG id = InterlockedExchangeAdd(&np_nameless_id, 1 );
snprintf(generated_endpoint, sizeof(generated_endpoint),
"\\\\pipe\\\\%08x.%03x", process_id, id);
endpoint = generated_endpoint;
}
r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
endpoint, NULL, NULL, NULL);
if (r != RPC_S_OK)
return r;
/* protseq=ncacn_np: named pipes */
pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
r = rpcrt4_conn_create_pipe(Connection, pname);
I_RpcFree(pname);
EnterCriticalSection(&protseq->cs);
Connection->Next = protseq->conn;
protseq->conn = Connection;
LeaveCriticalSection(&protseq->cs);
return r;
}
static void rpcrt4_conn_np_handoff(RpcConnection_np *old_npc, RpcConnection_np *new_npc)
{
/* 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));
old_npc->listening = FALSE;
}
static RPC_STATUS rpcrt4_ncacn_np_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
{
RPC_STATUS status;
LPSTR pname;
static const char prefix[] = "\\\\.";
rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
strcat(strcpy(pname, prefix), old_conn->Endpoint);
status = rpcrt4_conn_create_pipe(old_conn, pname);
I_RpcFree(pname);
return status;
}
static RPC_STATUS rpcrt4_ncalrpc_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
{
RPC_STATUS status;
LPSTR pname;
static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
TRACE("%s\n", old_conn->Endpoint);
rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
strcat(strcpy(pname, prefix), old_conn->Endpoint);
status = rpcrt4_conn_create_pipe(old_conn, pname);
I_RpcFree(pname);
return status;
}
static int rpcrt4_conn_np_read(RpcConnection *Connection,
void *buffer, unsigned int count)
{
RpcConnection_np *npc = (RpcConnection_np *) Connection;
char *buf = buffer;
BOOL ret = TRUE;
unsigned int bytes_left = count;
while (bytes_left)
{
DWORD bytes_read;
ret = ReadFile(npc->pipe, buf, bytes_left, &bytes_read, NULL);
if (!ret && GetLastError() == ERROR_MORE_DATA)
ret = TRUE;
if (!ret || !bytes_read)
break;
bytes_left -= bytes_read;
buf += bytes_read;
}
return ret ? count : -1;
}
static int rpcrt4_conn_np_write(RpcConnection *Connection,
const void *buffer, unsigned int count)
{
RpcConnection_np *npc = (RpcConnection_np *) Connection;
const char *buf = buffer;
BOOL ret = TRUE;
unsigned int bytes_left = count;
while (bytes_left)
{
DWORD bytes_written;
ret = WriteFile(npc->pipe, buf, bytes_left, &bytes_written, NULL);
if (!ret || !bytes_written)
break;
bytes_left -= bytes_written;
buf += bytes_written;
}
return ret ? count : -1;
}
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;
}
static void rpcrt4_conn_np_cancel_call(RpcConnection *Connection)
{
/* FIXME: implement when named pipe writes use overlapped I/O */
}
static int rpcrt4_conn_np_wait_for_incoming_data(RpcConnection *Connection)
{
/* FIXME: implement when named pipe writes use overlapped I/O */
return -1;
}
static size_t rpcrt4_ncacn_np_get_top_of_tower(unsigned char *tower_data,
const char *networkaddr,
const char *endpoint)
{
twr_empty_floor_t *smb_floor;
twr_empty_floor_t *nb_floor;
size_t size;
size_t networkaddr_size;
size_t endpoint_size;
TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
networkaddr_size = networkaddr ? strlen(networkaddr) + 1 : 1;
endpoint_size = endpoint ? strlen(endpoint) + 1 : 1;
size = sizeof(*smb_floor) + endpoint_size + sizeof(*nb_floor) + networkaddr_size;
if (!tower_data)
return size;
smb_floor = (twr_empty_floor_t *)tower_data;
tower_data += sizeof(*smb_floor);
smb_floor->count_lhs = sizeof(smb_floor->protid);
smb_floor->protid = EPM_PROTOCOL_SMB;
smb_floor->count_rhs = endpoint_size;
if (endpoint)
memcpy(tower_data, endpoint, endpoint_size);
else
tower_data[0] = 0;
tower_data += endpoint_size;
nb_floor = (twr_empty_floor_t *)tower_data;
tower_data += sizeof(*nb_floor);
nb_floor->count_lhs = sizeof(nb_floor->protid);
nb_floor->protid = EPM_PROTOCOL_NETBIOS;
nb_floor->count_rhs = networkaddr_size;
if (networkaddr)
memcpy(tower_data, networkaddr, networkaddr_size);
else
tower_data[0] = 0;
return size;
}
static RPC_STATUS rpcrt4_ncacn_np_parse_top_of_tower(const unsigned char *tower_data,
size_t tower_size,
char **networkaddr,
char **endpoint)
{
const twr_empty_floor_t *smb_floor = (const twr_empty_floor_t *)tower_data;
const twr_empty_floor_t *nb_floor;
TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
if (tower_size < sizeof(*smb_floor))
return EPT_S_NOT_REGISTERED;
tower_data += sizeof(*smb_floor);
tower_size -= sizeof(*smb_floor);
if ((smb_floor->count_lhs != sizeof(smb_floor->protid)) ||
(smb_floor->protid != EPM_PROTOCOL_SMB) ||
(smb_floor->count_rhs > tower_size) ||
(tower_data[smb_floor->count_rhs - 1] != '\0'))
return EPT_S_NOT_REGISTERED;
if (endpoint)
{
*endpoint = I_RpcAllocate(smb_floor->count_rhs);
if (!*endpoint)
return RPC_S_OUT_OF_RESOURCES;
memcpy(*endpoint, tower_data, smb_floor->count_rhs);
}
tower_data += smb_floor->count_rhs;
tower_size -= smb_floor->count_rhs;
if (tower_size < sizeof(*nb_floor))
return EPT_S_NOT_REGISTERED;
nb_floor = (const twr_empty_floor_t *)tower_data;
tower_data += sizeof(*nb_floor);
tower_size -= sizeof(*nb_floor);
if ((nb_floor->count_lhs != sizeof(nb_floor->protid)) ||
(nb_floor->protid != EPM_PROTOCOL_NETBIOS) ||
(nb_floor->count_rhs > tower_size) ||
(tower_data[nb_floor->count_rhs - 1] != '\0'))
return EPT_S_NOT_REGISTERED;
if (networkaddr)
{
*networkaddr = I_RpcAllocate(nb_floor->count_rhs);
if (!*networkaddr)
{
if (endpoint)
{
I_RpcFree(*endpoint);
*endpoint = NULL;
}
return RPC_S_OUT_OF_RESOURCES;
}
memcpy(*networkaddr, tower_data, nb_floor->count_rhs);
}
return RPC_S_OK;
}
typedef struct _RpcServerProtseq_np
{
RpcServerProtseq common;
HANDLE mgr_event;
} RpcServerProtseq_np;
static RpcServerProtseq *rpcrt4_protseq_np_alloc(void)
{
RpcServerProtseq_np *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
if (ps)
ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
return &ps->common;
}
static void rpcrt4_protseq_np_signal_state_changed(RpcServerProtseq *protseq)
{
RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
SetEvent(npps->mgr_event);
}
static void *rpcrt4_protseq_np_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
{
HANDLE *objs = prev_array;
RpcConnection_np *conn;
RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
EnterCriticalSection(&protseq->cs);
/* open and count connections */
*count = 1;
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
while (conn) {
rpcrt4_conn_listen_pipe(conn);
if (conn->ovl.hEvent)
(*count)++;
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
}
/* make array of connections */
if (objs)
objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
else
objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
if (!objs)
{
ERR("couldn't allocate objs\n");
LeaveCriticalSection(&protseq->cs);
return NULL;
}
objs[0] = npps->mgr_event;
*count = 1;
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
while (conn) {
if ((objs[*count] = conn->ovl.hEvent))
(*count)++;
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
}
LeaveCriticalSection(&protseq->cs);
return objs;
}
static void rpcrt4_protseq_np_free_wait_array(RpcServerProtseq *protseq, void *array)
{
HeapFree(GetProcessHeap(), 0, array);
}
static int rpcrt4_protseq_np_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
{
HANDLE b_handle;
HANDLE *objs = wait_array;
DWORD res;
RpcConnection *cconn;
RpcConnection_np *conn;
if (!objs)
return -1;
do
{
/* an alertable wait isn't strictly necessary, but due to our
* overlapped I/O implementation in Wine we need to free some memory
* by the file user APC being called, even if no completion routine was
* specified at the time of starting the async operation */
res = WaitForMultipleObjectsEx(count, objs, FALSE, INFINITE, TRUE);
} while (res == WAIT_IO_COMPLETION);
if (res == WAIT_OBJECT_0)
return 0;
else if (res == WAIT_FAILED)
{
ERR("wait failed with error %d\n", GetLastError());
return -1;
}
else
{
b_handle = objs[res - WAIT_OBJECT_0];
/* find which connection got a RPC */
EnterCriticalSection(&protseq->cs);
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
while (conn) {
if (b_handle == conn->ovl.hEvent) break;
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
}
cconn = NULL;
if (conn)
RPCRT4_SpawnConnection(&cconn, &conn->common);
else
ERR("failed to locate connection for handle %p\n", b_handle);
LeaveCriticalSection(&protseq->cs);
if (cconn)
{
RPCRT4_new_client(cconn);
return 1;
}
else return -1;
}
}
static size_t rpcrt4_ncalrpc_get_top_of_tower(unsigned char *tower_data,
const char *networkaddr,
const char *endpoint)
{
twr_empty_floor_t *pipe_floor;
size_t size;
size_t endpoint_size;
TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
endpoint_size = strlen(endpoint) + 1;
size = sizeof(*pipe_floor) + endpoint_size;
if (!tower_data)
return size;
pipe_floor = (twr_empty_floor_t *)tower_data;
tower_data += sizeof(*pipe_floor);
pipe_floor->count_lhs = sizeof(pipe_floor->protid);
pipe_floor->protid = EPM_PROTOCOL_PIPE;
pipe_floor->count_rhs = endpoint_size;
memcpy(tower_data, endpoint, endpoint_size);
return size;
}
static RPC_STATUS rpcrt4_ncalrpc_parse_top_of_tower(const unsigned char *tower_data,
size_t tower_size,
char **networkaddr,
char **endpoint)
{
const twr_empty_floor_t *pipe_floor = (const twr_empty_floor_t *)tower_data;
TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
if (tower_size < sizeof(*pipe_floor))
return EPT_S_NOT_REGISTERED;
tower_data += sizeof(*pipe_floor);
tower_size -= sizeof(*pipe_floor);
if ((pipe_floor->count_lhs != sizeof(pipe_floor->protid)) ||
(pipe_floor->protid != EPM_PROTOCOL_PIPE) ||
(pipe_floor->count_rhs > tower_size) ||
(tower_data[pipe_floor->count_rhs - 1] != '\0'))
return EPT_S_NOT_REGISTERED;
if (networkaddr)
*networkaddr = NULL;
if (endpoint)
{
*endpoint = I_RpcAllocate(pipe_floor->count_rhs);
if (!*endpoint)
return RPC_S_OUT_OF_RESOURCES;
memcpy(*endpoint, tower_data, pipe_floor->count_rhs);
}
return RPC_S_OK;
}
/**** ncacn_ip_tcp support ****/
static size_t rpcrt4_ip_tcp_get_top_of_tower(unsigned char *tower_data,
const char *networkaddr,
unsigned char tcp_protid,
const char *endpoint)
{
twr_tcp_floor_t *tcp_floor;
twr_ipv4_floor_t *ipv4_floor;
struct addrinfo *ai;
struct addrinfo hints;
int ret;
size_t size = sizeof(*tcp_floor) + sizeof(*ipv4_floor);
TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
if (!tower_data)
return size;
tcp_floor = (twr_tcp_floor_t *)tower_data;
tower_data += sizeof(*tcp_floor);
ipv4_floor = (twr_ipv4_floor_t *)tower_data;
tcp_floor->count_lhs = sizeof(tcp_floor->protid);
tcp_floor->protid = tcp_protid;
tcp_floor->count_rhs = sizeof(tcp_floor->port);
ipv4_floor->count_lhs = sizeof(ipv4_floor->protid);
ipv4_floor->protid = EPM_PROTOCOL_IP;
ipv4_floor->count_rhs = sizeof(ipv4_floor->ipv4addr);
hints.ai_flags = AI_NUMERICHOST;
/* FIXME: only support IPv4 at the moment. how is IPv6 represented by the EPM? */
hints.ai_family = PF_INET;
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(networkaddr, endpoint, &hints, &ai);
if (ret)
{
ret = getaddrinfo("0.0.0.0", endpoint, &hints, &ai);
if (ret)
{
ERR("getaddrinfo failed: %s\n", gai_strerror(ret));
return 0;
}
}
if (ai->ai_family == PF_INET)
{
const struct sockaddr_in *sin = (const struct sockaddr_in *)ai->ai_addr;
tcp_floor->port = sin->sin_port;
ipv4_floor->ipv4addr = sin->sin_addr.s_addr;
}
else
{
ERR("unexpected protocol family %d\n", ai->ai_family);
return 0;
}
freeaddrinfo(ai);
return size;
}
static RPC_STATUS rpcrt4_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
size_t tower_size,
char **networkaddr,
unsigned char tcp_protid,
char **endpoint)
{
const twr_tcp_floor_t *tcp_floor = (const twr_tcp_floor_t *)tower_data;
const twr_ipv4_floor_t *ipv4_floor;
struct in_addr in_addr;
TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
if (tower_size < sizeof(*tcp_floor))
return EPT_S_NOT_REGISTERED;
tower_data += sizeof(*tcp_floor);
tower_size -= sizeof(*tcp_floor);
if (tower_size < sizeof(*ipv4_floor))
return EPT_S_NOT_REGISTERED;
ipv4_floor = (const twr_ipv4_floor_t *)tower_data;
if ((tcp_floor->count_lhs != sizeof(tcp_floor->protid)) ||
(tcp_floor->protid != tcp_protid) ||
(tcp_floor->count_rhs != sizeof(tcp_floor->port)) ||
(ipv4_floor->count_lhs != sizeof(ipv4_floor->protid)) ||
(ipv4_floor->protid != EPM_PROTOCOL_IP) ||
(ipv4_floor->count_rhs != sizeof(ipv4_floor->ipv4addr)))
return EPT_S_NOT_REGISTERED;
if (endpoint)
{
*endpoint = I_RpcAllocate(6 /* sizeof("65535") + 1 */);
if (!*endpoint)
return RPC_S_OUT_OF_RESOURCES;
sprintf(*endpoint, "%u", ntohs(tcp_floor->port));
}
if (networkaddr)
{
*networkaddr = I_RpcAllocate(INET_ADDRSTRLEN);
if (!*networkaddr)
{
if (endpoint)
{
I_RpcFree(*endpoint);
*endpoint = NULL;
}
return RPC_S_OUT_OF_RESOURCES;
}
in_addr.s_addr = ipv4_floor->ipv4addr;
if (!inet_ntop(AF_INET, &in_addr, *networkaddr, INET_ADDRSTRLEN))
{
ERR("inet_ntop: %s\n", strerror(errno));
I_RpcFree(*networkaddr);
*networkaddr = NULL;
if (endpoint)
{
I_RpcFree(*endpoint);
*endpoint = NULL;
}
return EPT_S_NOT_REGISTERED;
}
}
return RPC_S_OK;
}
typedef struct _RpcConnection_tcp
{
RpcConnection common;
int sock;
#ifdef HAVE_SOCKETPAIR
int cancel_fds[2];
#else
HANDLE sock_event;
HANDLE cancel_event;
#endif
} RpcConnection_tcp;
#ifdef HAVE_SOCKETPAIR
static BOOL rpcrt4_sock_wait_init(RpcConnection_tcp *tcpc)
{
if (socketpair(PF_UNIX, SOCK_STREAM, 0, tcpc->cancel_fds) < 0)
{
ERR("socketpair() failed: %s\n", strerror(errno));
return FALSE;
}
return TRUE;
}
static BOOL rpcrt4_sock_wait_for_recv(RpcConnection_tcp *tcpc)
{
struct pollfd pfds[2];
pfds[0].fd = tcpc->sock;
pfds[0].events = POLLIN;
pfds[1].fd = tcpc->cancel_fds[0];
pfds[1].events = POLLIN;
if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
{
ERR("poll() failed: %s\n", strerror(errno));
return FALSE;
}
if (pfds[1].revents & POLLIN) /* canceled */
{
char dummy;
read(pfds[1].fd, &dummy, sizeof(dummy));
return FALSE;
}
return TRUE;
}
static BOOL rpcrt4_sock_wait_for_send(RpcConnection_tcp *tcpc)
{
struct pollfd pfd;
pfd.fd = tcpc->sock;
pfd.events = POLLOUT;
if (poll(&pfd, 1, -1 /* infinite */) == -1 && errno != EINTR)
{
ERR("poll() failed: %s\n", strerror(errno));
return FALSE;
}
return TRUE;
}
static void rpcrt4_sock_wait_cancel(RpcConnection_tcp *tcpc)
{
char dummy = 1;
write(tcpc->cancel_fds[1], &dummy, 1);
}
static void rpcrt4_sock_wait_destroy(RpcConnection_tcp *tcpc)
{
close(tcpc->cancel_fds[0]);
close(tcpc->cancel_fds[1]);
}
#else /* HAVE_SOCKETPAIR */
static BOOL rpcrt4_sock_wait_init(RpcConnection_tcp *tcpc)
{
static BOOL wsa_inited;
if (!wsa_inited)
{
WSADATA wsadata;
WSAStartup(MAKEWORD(2, 2), &wsadata);
/* Note: WSAStartup can be called more than once so we don't bother with
* making accesses to wsa_inited thread-safe */
wsa_inited = TRUE;
}
tcpc->sock_event = CreateEventW(NULL, FALSE, FALSE, NULL);
tcpc->cancel_event = CreateEventW(NULL, FALSE, FALSE, NULL);
if (!tcpc->sock_event || !tcpc->cancel_event)
{
ERR("event creation failed\n");
if (tcpc->sock_event) CloseHandle(tcpc->sock_event);
return FALSE;
}
return TRUE;
}
static BOOL rpcrt4_sock_wait_for_recv(RpcConnection_tcp *tcpc)
{
HANDLE wait_handles[2];
DWORD res;
if (WSAEventSelect(tcpc->sock, tcpc->sock_event, FD_READ | FD_CLOSE) == SOCKET_ERROR)
{
ERR("WSAEventSelect() failed with error %d\n", WSAGetLastError());
return FALSE;
}
wait_handles[0] = tcpc->sock_event;
wait_handles[1] = tcpc->cancel_event;
res = WaitForMultipleObjects(2, wait_handles, FALSE, INFINITE);
switch (res)
{
case WAIT_OBJECT_0:
return TRUE;
case WAIT_OBJECT_0 + 1:
return FALSE;
default:
ERR("WaitForMultipleObjects() failed with error %d\n", GetLastError());
return FALSE;
}
}
static BOOL rpcrt4_sock_wait_for_send(RpcConnection_tcp *tcpc)
{
DWORD res;
if (WSAEventSelect(tcpc->sock, tcpc->sock_event, FD_WRITE | FD_CLOSE) == SOCKET_ERROR)
{
ERR("WSAEventSelect() failed with error %d\n", WSAGetLastError());
return FALSE;
}
res = WaitForSingleObject(tcpc->sock_event, INFINITE);
switch (res)
{
case WAIT_OBJECT_0:
return TRUE;
default:
ERR("WaitForMultipleObjects() failed with error %d\n", GetLastError());
return FALSE;
}
}
static void rpcrt4_sock_wait_cancel(RpcConnection_tcp *tcpc)
{
SetEvent(tcpc->cancel_event);
}
static void rpcrt4_sock_wait_destroy(RpcConnection_tcp *tcpc)
{
CloseHandle(tcpc->sock_event);
CloseHandle(tcpc->cancel_event);
}
#endif
static RpcConnection *rpcrt4_conn_tcp_alloc(void)
{
RpcConnection_tcp *tcpc;
tcpc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_tcp));
if (tcpc == NULL)
return NULL;
tcpc->sock = -1;
if (!rpcrt4_sock_wait_init(tcpc))
{
HeapFree(GetProcessHeap(), 0, tcpc);
return NULL;
}
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 (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)
{
ERR("getaddrinfo for %s:%s failed: %s\n", Connection->NetworkAddr,
Connection->Endpoint, gai_strerror(ret));
return RPC_S_SERVER_UNAVAILABLE;
}
for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
{
int val;
u_long nonblocking;
if (ai_cur->ai_family != AF_INET && ai_cur->ai_family != AF_INET6)
{
TRACE("skipping non-IP/IPv6 address family\n");
continue;
}
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 == -1)
{
WARN("socket() failed: %s\n", strerror(errno));
continue;
}
if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen))
{
WARN("connect() failed: %s\n", strerror(errno));
closesocket(sock);
continue;
}
/* RPC depends on having minimal latency so disable the Nagle algorithm */
val = 1;
setsockopt(sock, SOL_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
nonblocking = 1;
ioctlsocket(sock, FIONBIO, &nonblocking);
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 RPC_STATUS rpcrt4_protseq_ncacn_ip_tcp_open_endpoint(RpcServerProtseq *protseq, const char *endpoint)
{
RPC_STATUS status = RPC_S_CANT_CREATE_ENDPOINT;
int sock;
int ret;
struct addrinfo *ai;
struct addrinfo *ai_cur;
struct addrinfo hints;
RpcConnection *first_connection = NULL;
TRACE("(%p, %s)\n", protseq, endpoint);
hints.ai_flags = AI_PASSIVE /* for non-localhost addresses */;
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(NULL, endpoint ? endpoint : "0", &hints, &ai);
if (ret)
{
ERR("getaddrinfo for port %s failed: %s\n", endpoint,
gai_strerror(ret));
if ((ret == EAI_SERVICE) || (ret == EAI_NONAME))
return RPC_S_INVALID_ENDPOINT_FORMAT;
return RPC_S_CANT_CREATE_ENDPOINT;
}
for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
{
RpcConnection_tcp *tcpc;
RPC_STATUS create_status;
struct sockaddr_storage sa;
socklen_t sa_len;
char service[NI_MAXSERV];
u_long nonblocking;
if (ai_cur->ai_family != AF_INET && ai_cur->ai_family != AF_INET6)
{
TRACE("skipping non-IP/IPv6 address family\n");
continue;
}
if (TRACE_ON(rpc))
{
char host[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 == -1)
{
WARN("socket() failed: %s\n", strerror(errno));
status = RPC_S_CANT_CREATE_ENDPOINT;
continue;
}
ret = bind(sock, ai_cur->ai_addr, ai_cur->ai_addrlen);
if (ret < 0)
{
WARN("bind failed: %s\n", strerror(errno));
closesocket(sock);
if (errno == EADDRINUSE)
status = RPC_S_DUPLICATE_ENDPOINT;
else
status = RPC_S_CANT_CREATE_ENDPOINT;
continue;
}
sa_len = sizeof(sa);
if (getsockname(sock, (struct sockaddr *)&sa, &sa_len))
{
WARN("getsockname() failed: %s\n", strerror(errno));
status = RPC_S_CANT_CREATE_ENDPOINT;
continue;
}
ret = getnameinfo((struct sockaddr *)&sa, sa_len,
NULL, 0, service, sizeof(service),
NI_NUMERICSERV);
if (ret)
{
WARN("getnameinfo failed: %s\n", gai_strerror(ret));
status = RPC_S_CANT_CREATE_ENDPOINT;
continue;
}
create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE,
protseq->Protseq, NULL,
service, NULL, NULL, NULL);
if (create_status != RPC_S_OK)
{
closesocket(sock);
status = create_status;
continue;
}
tcpc->sock = sock;
ret = listen(sock, protseq->MaxCalls);
if (ret < 0)
{
WARN("listen failed: %s\n", strerror(errno));
RPCRT4_DestroyConnection(&tcpc->common);
status = RPC_S_OUT_OF_RESOURCES;
continue;
}
/* need a non-blocking socket, otherwise accept() has a potential
* race-condition (poll() says it is readable, connection drops,
* and accept() blocks until the next connection comes...)
*/
nonblocking = 1;
ret = ioctlsocket(sock, FIONBIO, &nonblocking);
if (ret < 0)
{
WARN("couldn't make socket non-blocking, error %d\n", ret);
RPCRT4_DestroyConnection(&tcpc->common);
status = RPC_S_OUT_OF_RESOURCES;
continue;
}
tcpc->common.Next = first_connection;
first_connection = &tcpc->common;
/* since IPv4 and IPv6 share the same port space, we only need one
* successful bind to listen for both */
break;
}
freeaddrinfo(ai);
/* if at least one connection was created for an endpoint then
* return success */
if (first_connection)
{
RpcConnection *conn;
/* find last element in list */
for (conn = first_connection; conn->Next; conn = conn->Next)
;
EnterCriticalSection(&protseq->cs);
conn->Next = protseq->conn;
protseq->conn = first_connection;
LeaveCriticalSection(&protseq->cs);
TRACE("listening on %s\n", endpoint);
return RPC_S_OK;
}
ERR("couldn't listen on port %s\n", endpoint);
return status;
}
static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
{
int ret;
struct sockaddr_in address;
socklen_t addrsize;
RpcConnection_tcp *server = (RpcConnection_tcp*) old_conn;
RpcConnection_tcp *client = (RpcConnection_tcp*) new_conn;
u_long nonblocking;
addrsize = sizeof(address);
ret = accept(server->sock, (struct sockaddr*) &address, &addrsize);
if (ret < 0)
{
ERR("Failed to accept a TCP connection: error %d\n", ret);
return RPC_S_OUT_OF_RESOURCES;
}
nonblocking = 1;
ioctlsocket(ret, FIONBIO, &nonblocking);
client->sock = ret;
TRACE("Accepted a new TCP connection\n");
return RPC_S_OK;
}
static int rpcrt4_conn_tcp_read(RpcConnection *Connection,
void *buffer, unsigned int count)
{
RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
int bytes_read = 0;
do
{
int r = recv(tcpc->sock, (char *)buffer + bytes_read, count - bytes_read, 0);
if (!r)
return -1;
else if (r > 0)
bytes_read += r;
else if (errno != EAGAIN)
{
WARN("recv() failed: %s\n", strerror(errno));
return -1;
}
else
{
if (!rpcrt4_sock_wait_for_recv(tcpc))
return -1;
}
} while (bytes_read != count);
TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_read);
return bytes_read;
}
static int rpcrt4_conn_tcp_write(RpcConnection *Connection,
const void *buffer, unsigned int count)
{
RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
int bytes_written = 0;
do
{
int r = send(tcpc->sock, (const char *)buffer + bytes_written, count - bytes_written, 0);
if (r >= 0)
bytes_written += r;
else if (errno != EAGAIN)
return -1;
else
{
if (!rpcrt4_sock_wait_for_send(tcpc))
return -1;
}
} while (bytes_written != count);
TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_written);
return bytes_written;
}
static int rpcrt4_conn_tcp_close(RpcConnection *Connection)
{
RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
TRACE("%d\n", tcpc->sock);
if (tcpc->sock != -1)
closesocket(tcpc->sock);
tcpc->sock = -1;
rpcrt4_sock_wait_destroy(tcpc);
return 0;
}
static void rpcrt4_conn_tcp_cancel_call(RpcConnection *Connection)
{
RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
TRACE("%p\n", Connection);
rpcrt4_sock_wait_cancel(tcpc);
}
static int rpcrt4_conn_tcp_wait_for_incoming_data(RpcConnection *Connection)
{
RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
TRACE("%p\n", Connection);
if (!rpcrt4_sock_wait_for_recv(tcpc))
return -1;
return 0;
}
static size_t rpcrt4_ncacn_ip_tcp_get_top_of_tower(unsigned char *tower_data,
const char *networkaddr,
const char *endpoint)
{
return rpcrt4_ip_tcp_get_top_of_tower(tower_data, networkaddr,
EPM_PROTOCOL_TCP, endpoint);
}
#ifdef HAVE_SOCKETPAIR
typedef struct _RpcServerProtseq_sock
{
RpcServerProtseq common;
int mgr_event_rcv;
int mgr_event_snd;
} RpcServerProtseq_sock;
static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
{
RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
if (ps)
{
int fds[2];
if (!socketpair(PF_UNIX, SOCK_DGRAM, 0, fds))
{
fcntl(fds[0], F_SETFL, O_NONBLOCK);
fcntl(fds[1], F_SETFL, O_NONBLOCK);
ps->mgr_event_rcv = fds[0];
ps->mgr_event_snd = fds[1];
}
else
{
ERR("socketpair failed with error %s\n", strerror(errno));
HeapFree(GetProcessHeap(), 0, ps);
return NULL;
}
}
return &ps->common;
}
static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
{
RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
char dummy = 1;
write(sockps->mgr_event_snd, &dummy, sizeof(dummy));
}
static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
{
struct pollfd *poll_info = prev_array;
RpcConnection_tcp *conn;
RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
EnterCriticalSection(&protseq->cs);
/* open and count connections */
*count = 1;
conn = (RpcConnection_tcp *)protseq->conn;
while (conn) {
if (conn->sock != -1)
(*count)++;
conn = (RpcConnection_tcp *)conn->common.Next;
}
/* make array of connections */
if (poll_info)
poll_info = HeapReAlloc(GetProcessHeap(), 0, poll_info, *count*sizeof(*poll_info));
else
poll_info = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(*poll_info));
if (!poll_info)
{
ERR("couldn't allocate poll_info\n");
LeaveCriticalSection(&protseq->cs);
return NULL;
}
poll_info[0].fd = sockps->mgr_event_rcv;
poll_info[0].events = POLLIN;
*count = 1;
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
while (conn) {
if (conn->sock != -1)
{
poll_info[*count].fd = conn->sock;
poll_info[*count].events = POLLIN;
(*count)++;
}
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
}
LeaveCriticalSection(&protseq->cs);
return poll_info;
}
static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
{
HeapFree(GetProcessHeap(), 0, array);
}
static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
{
struct pollfd *poll_info = wait_array;
int ret;
unsigned int i;
RpcConnection *cconn;
RpcConnection_tcp *conn;
if (!poll_info)
return -1;
ret = poll(poll_info, count, -1);
if (ret < 0)
{
ERR("poll failed with error %d\n", ret);
return -1;
}
for (i = 0; i < count; i++)
if (poll_info[i].revents & POLLIN)
{
/* RPC server event */
if (i == 0)
{
char dummy;
read(poll_info[0].fd, &dummy, sizeof(dummy));
return 0;
}
/* find which connection got a RPC */
EnterCriticalSection(&protseq->cs);
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
while (conn) {
if (poll_info[i].fd == conn->sock) break;
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
}
cconn = NULL;
if (conn)
RPCRT4_SpawnConnection(&cconn, &conn->common);
else
ERR("failed to locate connection for fd %d\n", poll_info[i].fd);
LeaveCriticalSection(&protseq->cs);
if (cconn)
RPCRT4_new_client(cconn);
else
return -1;
}
return 1;
}
#else /* HAVE_SOCKETPAIR */
typedef struct _RpcServerProtseq_sock
{
RpcServerProtseq common;
HANDLE mgr_event;
} RpcServerProtseq_sock;
static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
{
RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
if (ps)
{
static BOOL wsa_inited;
if (!wsa_inited)
{
WSADATA wsadata;
WSAStartup(MAKEWORD(2, 2), &wsadata);
/* Note: WSAStartup can be called more than once so we don't bother with
* making accesses to wsa_inited thread-safe */
wsa_inited = TRUE;
}
ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
}
return &ps->common;
}
static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
{
RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
SetEvent(sockps->mgr_event);
}
static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
{
HANDLE *objs = prev_array;
RpcConnection_tcp *conn;
RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
EnterCriticalSection(&protseq->cs);
/* open and count connections */
*count = 1;
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
while (conn)
{
if (conn->sock != -1)
(*count)++;
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
}
/* make array of connections */
if (objs)
objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
else
objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
if (!objs)
{
ERR("couldn't allocate objs\n");
LeaveCriticalSection(&protseq->cs);
return NULL;
}
objs[0] = sockps->mgr_event;
*count = 1;
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
while (conn)
{
if (conn->sock != -1)
{
int res = WSAEventSelect(conn->sock, conn->sock_event, FD_ACCEPT);
if (res == SOCKET_ERROR)
ERR("WSAEventSelect() failed with error %d\n", WSAGetLastError());
else
{
objs[*count] = conn->sock_event;
(*count)++;
}
}
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
}
LeaveCriticalSection(&protseq->cs);
return objs;
}
static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
{
HeapFree(GetProcessHeap(), 0, array);
}
static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
{
HANDLE b_handle;
HANDLE *objs = wait_array;
DWORD res;
RpcConnection *cconn;
RpcConnection_tcp *conn;
if (!objs)
return -1;
do
{
/* an alertable wait isn't strictly necessary, but due to our
* overlapped I/O implementation in Wine we need to free some memory
* by the file user APC being called, even if no completion routine was
* specified at the time of starting the async operation */
res = WaitForMultipleObjectsEx(count, objs, FALSE, INFINITE, TRUE);
} while (res == WAIT_IO_COMPLETION);
if (res == WAIT_OBJECT_0)
return 0;
else if (res == WAIT_FAILED)
{
ERR("wait failed with error %d\n", GetLastError());
return -1;
}
else
{
b_handle = objs[res - WAIT_OBJECT_0];
/* find which connection got a RPC */
EnterCriticalSection(&protseq->cs);
conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
while (conn)
{
if (b_handle == conn->sock_event) break;
conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
}
cconn = NULL;
if (conn)
RPCRT4_SpawnConnection(&cconn, &conn->common);
else
ERR("failed to locate connection for handle %p\n", b_handle);
LeaveCriticalSection(&protseq->cs);
if (cconn)
{
RPCRT4_new_client(cconn);
return 1;
}
else return -1;
}
}
#endif /* HAVE_SOCKETPAIR */
static RPC_STATUS rpcrt4_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
size_t tower_size,
char **networkaddr,
char **endpoint)
{
return rpcrt4_ip_tcp_parse_top_of_tower(tower_data, tower_size,
networkaddr, EPM_PROTOCOL_TCP,
endpoint);
}
/**** ncacn_http support ****/
/* 60 seconds is the period native uses */
#define HTTP_IDLE_TIME 60000
/* reference counted to avoid a race between a cancelled call's connection
* being destroyed and the asynchronous InternetReadFileEx call being
* completed */
typedef struct _RpcHttpAsyncData
{
LONG refs;
HANDLE completion_event;
INTERNET_BUFFERSA inet_buffers;
void *destination_buffer; /* the address that inet_buffers.lpvBuffer will be
* copied into when the call completes */
CRITICAL_SECTION cs;
} RpcHttpAsyncData;
static ULONG RpcHttpAsyncData_AddRef(RpcHttpAsyncData *data)
{
return InterlockedIncrement(&data->refs);
}
static ULONG RpcHttpAsyncData_Release(RpcHttpAsyncData *data)
{
ULONG refs = InterlockedDecrement(&data->refs);
if (!refs)
{
TRACE("destroying async data %p\n", data);
CloseHandle(data->completion_event);
HeapFree(GetProcessHeap(), 0, data->inet_buffers.lpvBuffer);
DeleteCriticalSection(&data->cs);
HeapFree(GetProcessHeap(), 0, data);
}
return refs;
}
typedef struct _RpcConnection_http
{
RpcConnection common;
HINTERNET app_info;
HINTERNET session;
HINTERNET in_request;
HINTERNET out_request;
HANDLE timer_cancelled;
HANDLE cancel_event;
DWORD last_sent_time;
ULONG bytes_received;
ULONG flow_control_mark; /* send a control packet to the server when this many bytes received */
ULONG flow_control_increment; /* number of bytes to increment flow_control_mark by */
UUID connection_uuid;
UUID in_pipe_uuid;
UUID out_pipe_uuid;
RpcHttpAsyncData *async_data;
} RpcConnection_http;
static RpcConnection *rpcrt4_ncacn_http_alloc(void)
{
RpcConnection_http *httpc;
httpc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*httpc));
if (!httpc) return NULL;
httpc->async_data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RpcHttpAsyncData));
if (!httpc->async_data)
{
HeapFree(GetProcessHeap(), 0, httpc);
return NULL;
}
TRACE("async data = %p\n", httpc->async_data);
httpc->cancel_event = CreateEventW(NULL, FALSE, FALSE, NULL);
httpc->async_data->refs = 1;
httpc->async_data->inet_buffers.dwStructSize = sizeof(INTERNET_BUFFERSA);
httpc->async_data->inet_buffers.lpvBuffer = NULL;
httpc->async_data->destination_buffer = NULL;
InitializeCriticalSection(&httpc->async_data->cs);
return &httpc->common;
}
typedef struct _HttpTimerThreadData
{
PVOID timer_param;
DWORD *last_sent_time;
HANDLE timer_cancelled;
} HttpTimerThreadData;
static VOID rpcrt4_http_keep_connection_active_timer_proc(PVOID param, BOOLEAN dummy)
{
HINTERNET in_request = param;
RpcPktHdr *idle_pkt;
idle_pkt = RPCRT4_BuildHttpHeader(NDR_LOCAL_DATA_REPRESENTATION, 0x0001,
0, 0);
if (idle_pkt)
{
DWORD bytes_written;
InternetWriteFile(in_request, idle_pkt, idle_pkt->common.frag_len, &bytes_written);
RPCRT4_FreeHeader(idle_pkt);
}
}
static inline DWORD rpcrt4_http_timer_calc_timeout(DWORD *last_sent_time)
{
DWORD cur_time = GetTickCount();
DWORD cached_last_sent_time = *last_sent_time;
return HTTP_IDLE_TIME - (cur_time - cached_last_sent_time > HTTP_IDLE_TIME ? 0 : cur_time - cached_last_sent_time);
}
static DWORD CALLBACK rpcrt4_http_timer_thread(PVOID param)
{
HttpTimerThreadData *data_in = param;
HttpTimerThreadData data;
DWORD timeout;
data = *data_in;
HeapFree(GetProcessHeap(), 0, data_in);
for (timeout = HTTP_IDLE_TIME;
WaitForSingleObject(data.timer_cancelled, timeout) == WAIT_TIMEOUT;
timeout = rpcrt4_http_timer_calc_timeout(data.last_sent_time))
{
/* are we too soon after last send? */
if (GetTickCount() - HTTP_IDLE_TIME < *data.last_sent_time)
continue;
rpcrt4_http_keep_connection_active_timer_proc(data.timer_param, TRUE);
}
CloseHandle(data.timer_cancelled);
return 0;
}
static VOID WINAPI rpcrt4_http_internet_callback(
HINTERNET hInternet,
DWORD_PTR dwContext,
DWORD dwInternetStatus,
LPVOID lpvStatusInformation,
DWORD dwStatusInformationLength)
{
RpcHttpAsyncData *async_data = (RpcHttpAsyncData *)dwContext;
switch (dwInternetStatus)
{
case INTERNET_STATUS_REQUEST_COMPLETE:
TRACE("INTERNET_STATUS_REQUEST_COMPLETED\n");
if (async_data)
{
if (async_data->inet_buffers.lpvBuffer)
{
EnterCriticalSection(&async_data->cs);
if (async_data->destination_buffer)
{
memcpy(async_data->destination_buffer,
async_data->inet_buffers.lpvBuffer,
async_data->inet_buffers.dwBufferLength);
async_data->destination_buffer = NULL;
}
LeaveCriticalSection(&async_data->cs);
}
HeapFree(GetProcessHeap(), 0, async_data->inet_buffers.lpvBuffer);
async_data->inet_buffers.lpvBuffer = NULL;
SetEvent(async_data->completion_event);
RpcHttpAsyncData_Release(async_data);
}
break;
}
}
static RPC_STATUS rpcrt4_http_check_response(HINTERNET hor)
{
BOOL ret;
DWORD status_code;
DWORD size;
DWORD index;
WCHAR buf[32];
WCHAR *status_text = buf;
TRACE("\n");
index = 0;
size = sizeof(status_code);
ret = HttpQueryInfoW(hor, HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER, &status_code, &size, &index);
if (!ret)
return GetLastError();
if (status_code < 400)
return RPC_S_OK;
index = 0;
size = sizeof(buf);
ret = HttpQueryInfoW(hor, HTTP_QUERY_STATUS_TEXT, status_text, &size, &index);
if (!ret && GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
status_text = HeapAlloc(GetProcessHeap(), 0, size);
ret = HttpQueryInfoW(hor, HTTP_QUERY_STATUS_TEXT, status_text, &size, &index);
}
ERR("server returned: %d %s\n", status_code, ret ? debugstr_w(status_text) : "<status text unavailable>");
if(status_text != buf) HeapFree(GetProcessHeap(), 0, status_text);
if (status_code == HTTP_STATUS_DENIED)
return ERROR_ACCESS_DENIED;
return RPC_S_SERVER_UNAVAILABLE;
}
static RPC_STATUS rpcrt4_http_internet_connect(RpcConnection_http *httpc)
{
static const WCHAR wszUserAgent[] = {'M','S','R','P','C',0};
LPWSTR proxy = NULL;
LPWSTR user = NULL;
LPWSTR password = NULL;
LPWSTR servername = NULL;
const WCHAR *option;
INTERNET_PORT port = INTERNET_INVALID_PORT_NUMBER; /* use default port */
if (httpc->common.QOS &&
(httpc->common.QOS->qos->AdditionalSecurityInfoType == RPC_C_AUTHN_INFO_TYPE_HTTP))
{
const RPC_HTTP_TRANSPORT_CREDENTIALS_W *http_cred = httpc->common.QOS->qos->u.HttpCredentials;
if (http_cred->TransportCredentials)
{
WCHAR *p;
const SEC_WINNT_AUTH_IDENTITY_W *cred = http_cred->TransportCredentials;
ULONG len = cred->DomainLength + 1 + cred->UserLength;
user = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
if (!user)
return RPC_S_OUT_OF_RESOURCES;
p = user;
if (cred->DomainLength)
{
memcpy(p, cred->Domain, cred->DomainLength * sizeof(WCHAR));
p += cred->DomainLength;
*p = '\\';
p++;
}
memcpy(p, cred->User, cred->UserLength * sizeof(WCHAR));
p[cred->UserLength] = 0;
password = RPCRT4_strndupW(cred->Password, cred->PasswordLength);
}
}
for (option = httpc->common.NetworkOptions; option;
option = (strchrW(option, ',') ? strchrW(option, ',')+1 : NULL))
{
static const WCHAR wszRpcProxy[] = {'R','p','c','P','r','o','x','y','=',0};
static const WCHAR wszHttpProxy[] = {'H','t','t','p','P','r','o','x','y','=',0};
if (!strncmpiW(option, wszRpcProxy, sizeof(wszRpcProxy)/sizeof(wszRpcProxy[0])-1))
{
const WCHAR *value_start = option + sizeof(wszRpcProxy)/sizeof(wszRpcProxy[0])-1;
const WCHAR *value_end;
const WCHAR *p;
value_end = strchrW(option, ',');
if (!value_end)
value_end = value_start + strlenW(value_start);
for (p = value_start; p < value_end; p++)
if (*p == ':')
{
port = atoiW(p+1);
value_end = p;
break;
}
TRACE("RpcProxy value is %s\n", debugstr_wn(value_start, value_end-value_start));
servername = RPCRT4_strndupW(value_start, value_end-value_start);
}
else if (!strncmpiW(option, wszHttpProxy, sizeof(wszHttpProxy)/sizeof(wszHttpProxy[0])-1))
{
const WCHAR *value_start = option + sizeof(wszHttpProxy)/sizeof(wszHttpProxy[0])-1;
const WCHAR *value_end;
value_end = strchrW(option, ',');
if (!value_end)
value_end = value_start + strlenW(value_start);
TRACE("HttpProxy value is %s\n", debugstr_wn(value_start, value_end-value_start));
proxy = RPCRT4_strndupW(value_start, value_end-value_start);
}
else
FIXME("unhandled option %s\n", debugstr_w(option));
}
httpc->app_info = InternetOpenW(wszUserAgent, proxy ? INTERNET_OPEN_TYPE_PROXY : INTERNET_OPEN_TYPE_PRECONFIG,
NULL, NULL, INTERNET_FLAG_ASYNC);
if (!httpc->app_info)
{
HeapFree(GetProcessHeap(), 0, password);
HeapFree(GetProcessHeap(), 0, user);
ERR("InternetOpenW failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
InternetSetStatusCallbackW(httpc->app_info, rpcrt4_http_internet_callback);
/* if no RpcProxy option specified, set the HTTP server address to the
* RPC server address */
if (!servername)
{
servername = HeapAlloc(GetProcessHeap(), 0, (strlen(httpc->common.NetworkAddr) + 1)*sizeof(WCHAR));
if (!servername)
{
HeapFree(GetProcessHeap(), 0, password);
HeapFree(GetProcessHeap(), 0, user);
return RPC_S_OUT_OF_RESOURCES;
}
MultiByteToWideChar(CP_ACP, 0, httpc->common.NetworkAddr, -1, servername, strlen(httpc->common.NetworkAddr) + 1);
}
httpc->session = InternetConnectW(httpc->app_info, servername, port, user, password,
INTERNET_SERVICE_HTTP, 0, 0);
HeapFree(GetProcessHeap(), 0, password);
HeapFree(GetProcessHeap(), 0, user);
HeapFree(GetProcessHeap(), 0, servername);
if (!httpc->session)
{
ERR("InternetConnectW failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
return RPC_S_OK;
}
/* prepare the in pipe for use by RPC packets */
static RPC_STATUS rpcrt4_http_prepare_in_pipe(HINTERNET in_request, RpcHttpAsyncData *async_data,
const UUID *connection_uuid,
const UUID *in_pipe_uuid,
const UUID *association_uuid)
{
BYTE packet[44];
BOOL ret;
RPC_STATUS status;
RpcPktHdr *hdr;
INTERNET_BUFFERSW buffers_in;
DWORD bytes_read, bytes_written;
/* prepare in pipe */
ResetEvent(async_data->completion_event);
RpcHttpAsyncData_AddRef(async_data);
ret = HttpSendRequestW(in_request, NULL, 0, NULL, 0);
if (!ret)
{
if (GetLastError() == ERROR_IO_PENDING)
WaitForSingleObject(async_data->completion_event, INFINITE);
else
{
RpcHttpAsyncData_Release(async_data);
ERR("HttpSendRequestW failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
}
status = rpcrt4_http_check_response(in_request);
if (status != RPC_S_OK) return status;
InternetReadFile(in_request, packet, 20, &bytes_read);
/* FIXME: do something with retrieved data */
memset(&buffers_in, 0, sizeof(buffers_in));
buffers_in.dwStructSize = sizeof(buffers_in);
/* FIXME: get this from the registry */
buffers_in.dwBufferTotal = 1024 * 1024 * 1024; /* 1Gb */
ResetEvent(async_data->completion_event);
RpcHttpAsyncData_AddRef(async_data);
ret = HttpSendRequestExW(in_request, &buffers_in, NULL, 0, 0);
if (!ret)
{
if (GetLastError() == ERROR_IO_PENDING)
WaitForSingleObject(async_data->completion_event, INFINITE);
else
{
RpcHttpAsyncData_Release(async_data);
ERR("HttpSendRequestExW failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
}
TRACE("sending HTTP connect header to server\n");
hdr = RPCRT4_BuildHttpConnectHeader(0, FALSE, connection_uuid, in_pipe_uuid, association_uuid);
if (!hdr) return RPC_S_OUT_OF_RESOURCES;
ret = InternetWriteFile(in_request, hdr, hdr->common.frag_len, &bytes_written);
RPCRT4_FreeHeader(hdr);
if (!ret)
{
ERR("InternetWriteFile failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
return RPC_S_OK;
}
static RPC_STATUS rpcrt4_http_read_http_packet(HINTERNET request, RpcPktHdr *hdr, BYTE **data)
{
BOOL ret;
DWORD bytes_read;
unsigned short data_len;
ret = InternetReadFile(request, hdr, sizeof(hdr->common), &bytes_read);
if (!ret)
return RPC_S_SERVER_UNAVAILABLE;
if (hdr->common.ptype != PKT_HTTP || hdr->common.frag_len < sizeof(hdr->http))
{
ERR("wrong packet type received %d or wrong frag_len %d\n",
hdr->common.ptype, hdr->common.frag_len);
return RPC_S_PROTOCOL_ERROR;
}
ret = InternetReadFile(request, &hdr->common + 1, sizeof(hdr->http) - sizeof(hdr->common), &bytes_read);
if (!ret)
return RPC_S_SERVER_UNAVAILABLE;
data_len = hdr->common.frag_len - sizeof(hdr->http);
if (data_len)
{
*data = HeapAlloc(GetProcessHeap(), 0, data_len);
if (!*data)
return RPC_S_OUT_OF_RESOURCES;
ret = InternetReadFile(request, *data, data_len, &bytes_read);
if (!ret)
{
HeapFree(GetProcessHeap(), 0, *data);
return RPC_S_SERVER_UNAVAILABLE;
}
}
else
*data = NULL;
if (!RPCRT4_IsValidHttpPacket(hdr, *data, data_len))
{
ERR("invalid http packet\n");
return RPC_S_PROTOCOL_ERROR;
}
return RPC_S_OK;
}
/* prepare the out pipe for use by RPC packets */
static RPC_STATUS rpcrt4_http_prepare_out_pipe(HINTERNET out_request,
RpcHttpAsyncData *async_data,
const UUID *connection_uuid,
const UUID *out_pipe_uuid,
ULONG *flow_control_increment)
{
BYTE packet[20];
BOOL ret;
RPC_STATUS status;
RpcPktHdr *hdr;
DWORD bytes_read;
BYTE *data_from_server;
RpcPktHdr pkt_from_server;
ULONG field1, field3;
ResetEvent(async_data->completion_event);
RpcHttpAsyncData_AddRef(async_data);
ret = HttpSendRequestW(out_request, NULL, 0, NULL, 0);
if (!ret)
{
if (GetLastError() == ERROR_IO_PENDING)
WaitForSingleObject(async_data->completion_event, INFINITE);
else
{
RpcHttpAsyncData_Release(async_data);
ERR("HttpSendRequestW failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
}
status = rpcrt4_http_check_response(out_request);
if (status != RPC_S_OK) return status;
InternetReadFile(out_request, packet, 20, &bytes_read);
/* FIXME: do something with retrieved data */
hdr = RPCRT4_BuildHttpConnectHeader(0, TRUE, connection_uuid, out_pipe_uuid, NULL);
if (!hdr) return RPC_S_OUT_OF_RESOURCES;
ResetEvent(async_data->completion_event);
RpcHttpAsyncData_AddRef(async_data);
ret = HttpSendRequestW(out_request, NULL, 0, hdr, hdr->common.frag_len);
if (!ret)
{
if (GetLastError() == ERROR_IO_PENDING)
WaitForSingleObject(async_data->completion_event, INFINITE);
else
{
RpcHttpAsyncData_Release(async_data);
ERR("HttpSendRequestW failed with error %d\n", GetLastError());
RPCRT4_FreeHeader(hdr);
return RPC_S_SERVER_UNAVAILABLE;
}
}
RPCRT4_FreeHeader(hdr);
status = rpcrt4_http_check_response(out_request);
if (status != RPC_S_OK) return status;
status = rpcrt4_http_read_http_packet(out_request, &pkt_from_server,
&data_from_server);
if (status != RPC_S_OK) return status;
status = RPCRT4_ParseHttpPrepareHeader1(&pkt_from_server, data_from_server,
&field1);
HeapFree(GetProcessHeap(), 0, data_from_server);
if (status != RPC_S_OK) return status;
TRACE("received (%d) from first prepare header\n", field1);
status = rpcrt4_http_read_http_packet(out_request, &pkt_from_server,
&data_from_server);
if (status != RPC_S_OK) return status;
status = RPCRT4_ParseHttpPrepareHeader2(&pkt_from_server, data_from_server,
&field1, flow_control_increment,
&field3);
HeapFree(GetProcessHeap(), 0, data_from_server);
if (status != RPC_S_OK) return status;
TRACE("received (0x%08x 0x%08x %d) from second prepare header\n", field1, *flow_control_increment, field3);
return RPC_S_OK;
}
static RPC_STATUS rpcrt4_ncacn_http_open(RpcConnection* Connection)
{
RpcConnection_http *httpc = (RpcConnection_http *)Connection;
static const WCHAR wszVerbIn[] = {'R','P','C','_','I','N','_','D','A','T','A',0};
static const WCHAR wszVerbOut[] = {'R','P','C','_','O','U','T','_','D','A','T','A',0};
static const WCHAR wszRpcProxyPrefix[] = {'/','r','p','c','/','r','p','c','p','r','o','x','y','.','d','l','l','?',0};
static const WCHAR wszColon[] = {':',0};
static const WCHAR wszAcceptType[] = {'a','p','p','l','i','c','a','t','i','o','n','/','r','p','c',0};
LPCWSTR wszAcceptTypes[] = { wszAcceptType, NULL };
WCHAR *url;
RPC_STATUS status;
BOOL secure;
HttpTimerThreadData *timer_data;
HANDLE thread;
TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
if (Connection->server)
{
ERR("ncacn_http servers not supported yet\n");
return RPC_S_SERVER_UNAVAILABLE;
}
if (httpc->in_request)
return RPC_S_OK;
httpc->async_data->completion_event = CreateEventW(NULL, FALSE, FALSE, NULL);
status = UuidCreate(&httpc->connection_uuid);
status = UuidCreate(&httpc->in_pipe_uuid);
status = UuidCreate(&httpc->out_pipe_uuid);
status = rpcrt4_http_internet_connect(httpc);
if (status != RPC_S_OK)
return status;
url = HeapAlloc(GetProcessHeap(), 0, sizeof(wszRpcProxyPrefix) + (strlen(Connection->NetworkAddr) + 1 + strlen(Connection->Endpoint))*sizeof(WCHAR));
if (!url)
return RPC_S_OUT_OF_MEMORY;
memcpy(url, wszRpcProxyPrefix, sizeof(wszRpcProxyPrefix));
MultiByteToWideChar(CP_ACP, 0, Connection->NetworkAddr, -1, url+sizeof(wszRpcProxyPrefix)/sizeof(wszRpcProxyPrefix[0])-1, strlen(Connection->NetworkAddr)+1);
strcatW(url, wszColon);
MultiByteToWideChar(CP_ACP, 0, Connection->Endpoint, -1, url+strlenW(url), strlen(Connection->Endpoint)+1);
secure = httpc->common.QOS &&
(httpc->common.QOS->qos->AdditionalSecurityInfoType == RPC_C_AUTHN_INFO_TYPE_HTTP) &&
(httpc->common.QOS->qos->u.HttpCredentials->Flags & RPC_C_HTTP_FLAG_USE_SSL);
httpc->in_request = HttpOpenRequestW(httpc->session, wszVerbIn, url, NULL, NULL,
wszAcceptTypes,
(secure ? INTERNET_FLAG_SECURE : 0)|INTERNET_FLAG_KEEP_CONNECTION|INTERNET_FLAG_PRAGMA_NOCACHE,
(DWORD_PTR)httpc->async_data);
if (!httpc->in_request)
{
ERR("HttpOpenRequestW failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
httpc->out_request = HttpOpenRequestW(httpc->session, wszVerbOut, url, NULL, NULL,
wszAcceptTypes,
(secure ? INTERNET_FLAG_SECURE : 0)|INTERNET_FLAG_KEEP_CONNECTION|INTERNET_FLAG_PRAGMA_NOCACHE,
(DWORD_PTR)httpc->async_data);
if (!httpc->out_request)
{
ERR("HttpOpenRequestW failed with error %d\n", GetLastError());
return RPC_S_SERVER_UNAVAILABLE;
}
status = rpcrt4_http_prepare_in_pipe(httpc->in_request,
httpc->async_data,
&httpc->connection_uuid,
&httpc->in_pipe_uuid,
&Connection->assoc->http_uuid);
if (status != RPC_S_OK)
return status;
status = rpcrt4_http_prepare_out_pipe(httpc->out_request,
httpc->async_data,
&httpc->connection_uuid,
&httpc->out_pipe_uuid,
&httpc->flow_control_increment);
if (status != RPC_S_OK)
return status;
httpc->flow_control_mark = httpc->flow_control_increment / 2;
httpc->last_sent_time = GetTickCount();
httpc->timer_cancelled = CreateEventW(NULL, FALSE, FALSE, NULL);
timer_data = HeapAlloc(GetProcessHeap(), 0, sizeof(*timer_data));
if (!timer_data)
return ERROR_OUTOFMEMORY;
timer_data->timer_param = httpc->in_request;
timer_data->last_sent_time = &httpc->last_sent_time;
timer_data->timer_cancelled = httpc->timer_cancelled;
/* FIXME: should use CreateTimerQueueTimer when implemented */
thread = CreateThread(NULL, 0, rpcrt4_http_timer_thread, timer_data, 0, NULL);
if (!thread)
{
HeapFree(GetProcessHeap(), 0, timer_data);
return GetLastError();
}
CloseHandle(thread);
return RPC_S_OK;
}
static RPC_STATUS rpcrt4_ncacn_http_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
{
assert(0);
return RPC_S_SERVER_UNAVAILABLE;
}
static int rpcrt4_ncacn_http_read(RpcConnection *Connection,
void *buffer, unsigned int count)
{
RpcConnection_http *httpc = (RpcConnection_http *) Connection;
char *buf = buffer;
BOOL ret = TRUE;
unsigned int bytes_left = count;
ResetEvent(httpc->async_data->completion_event);
while (bytes_left)
{
RpcHttpAsyncData_AddRef(httpc->async_data);
httpc->async_data->inet_buffers.dwBufferLength = bytes_left;
httpc->async_data->inet_buffers.lpvBuffer = HeapAlloc(GetProcessHeap(), 0, bytes_left);
httpc->async_data->destination_buffer = buf;
ret = InternetReadFileExA(httpc->out_request, &httpc->async_data->inet_buffers, IRF_ASYNC, 0);
if (ret)
{
/* INTERNET_STATUS_REQUEST_COMPLETED won't be sent, so release our
* async ref now */
RpcHttpAsyncData_Release(httpc->async_data);
memcpy(buf, httpc->async_data->inet_buffers.lpvBuffer,
httpc->async_data->inet_buffers.dwBufferLength);
HeapFree(GetProcessHeap(), 0, httpc->async_data->inet_buffers.lpvBuffer);
httpc->async_data->inet_buffers.lpvBuffer = NULL;
httpc->async_data->destination_buffer = NULL;
}
else
{
if (GetLastError() == ERROR_IO_PENDING)
{
HANDLE handles[2] = { httpc->async_data->completion_event, httpc->cancel_event };
DWORD result = WaitForMultipleObjects(2, handles, FALSE, DEFAULT_NCACN_HTTP_TIMEOUT);
if (result == WAIT_OBJECT_0)
ret = TRUE;
else
{
TRACE("call cancelled\n");
EnterCriticalSection(&httpc->async_data->cs);
httpc->async_data->destination_buffer = NULL;
LeaveCriticalSection(&httpc->async_data->cs);
break;
}
}
else
{
HeapFree(GetProcessHeap(), 0, httpc->async_data->inet_buffers.lpvBuffer);
httpc->async_data->inet_buffers.lpvBuffer = NULL;
httpc->async_data->destination_buffer = NULL;
RpcHttpAsyncData_Release(httpc->async_data);
break;
}
}
if (!httpc->async_data->inet_buffers.dwBufferLength)
break;
bytes_left -= httpc->async_data->inet_buffers.dwBufferLength;
buf += httpc->async_data->inet_buffers.dwBufferLength;
}
TRACE("%p %p %u -> %s\n", httpc->out_request, buffer, count, ret ? "TRUE" : "FALSE");
return ret ? count : -1;
}
static RPC_STATUS rpcrt4_ncacn_http_receive_fragment(RpcConnection *Connection, RpcPktHdr **Header, void **Payload)
{
RpcConnection_http *httpc = (RpcConnection_http *) Connection;
RPC_STATUS status;
DWORD hdr_length;
LONG dwRead;
RpcPktCommonHdr common_hdr;
*Header = NULL;
TRACE("(%p, %p, %p)\n", Connection, Header, Payload);
again:
/* read packet common header */
dwRead = rpcrt4_ncacn_http_read(Connection, &common_hdr, sizeof(common_hdr));
if (dwRead != sizeof(common_hdr)) {
WARN("Short read of header, %d bytes\n", dwRead);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
if (!memcmp(&common_hdr, "HTTP/1.1", sizeof("HTTP/1.1")) ||
!memcmp(&common_hdr, "HTTP/1.0", sizeof("HTTP/1.0")))
{
FIXME("server returned %s\n", debugstr_a((const char *)&common_hdr));
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
status = RPCRT4_ValidateCommonHeader(&common_hdr);
if (status != RPC_S_OK) goto fail;
hdr_length = RPCRT4_GetHeaderSize((RpcPktHdr*)&common_hdr);
if (hdr_length == 0) {
WARN("header length == 0\n");
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
*Header = HeapAlloc(GetProcessHeap(), 0, hdr_length);
if (!*Header)
{
status = RPC_S_OUT_OF_RESOURCES;
goto fail;
}
memcpy(*Header, &common_hdr, sizeof(common_hdr));
/* read the rest of packet header */
dwRead = rpcrt4_ncacn_http_read(Connection, &(*Header)->common + 1, hdr_length - sizeof(common_hdr));
if (dwRead != hdr_length - sizeof(common_hdr)) {
WARN("bad header length, %d bytes, hdr_length %d\n", dwRead, hdr_length);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
if (common_hdr.frag_len - hdr_length)
{
*Payload = HeapAlloc(GetProcessHeap(), 0, common_hdr.frag_len - hdr_length);
if (!*Payload)
{
status = RPC_S_OUT_OF_RESOURCES;
goto fail;
}
dwRead = rpcrt4_ncacn_http_read(Connection, *Payload, common_hdr.frag_len - hdr_length);
if (dwRead != common_hdr.frag_len - hdr_length)
{
WARN("bad data length, %d/%d\n", dwRead, common_hdr.frag_len - hdr_length);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
}
else
*Payload = NULL;
if ((*Header)->common.ptype == PKT_HTTP)
{
if (!RPCRT4_IsValidHttpPacket(*Header, *Payload, common_hdr.frag_len - hdr_length))
{
ERR("invalid http packet of length %d bytes\n", (*Header)->common.frag_len);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
if ((*Header)->http.flags == 0x0001)
{
TRACE("http idle packet, waiting for real packet\n");
if ((*Header)->http.num_data_items != 0)
{
ERR("HTTP idle packet should have no data items instead of %d\n", (*Header)->http.num_data_items);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
}
else if ((*Header)->http.flags == 0x0002)
{
ULONG bytes_transmitted;
ULONG flow_control_increment;
UUID pipe_uuid;
status = RPCRT4_ParseHttpFlowControlHeader(*Header, *Payload,
Connection->server,
&bytes_transmitted,
&flow_control_increment,
&pipe_uuid);
if (status != RPC_S_OK)
goto fail;
TRACE("received http flow control header (0x%x, 0x%x, %s)\n",
bytes_transmitted, flow_control_increment, debugstr_guid(&pipe_uuid));
/* FIXME: do something with parsed data */
}
else
{
FIXME("unrecognised http packet with flags 0x%04x\n", (*Header)->http.flags);
status = RPC_S_PROTOCOL_ERROR;
goto fail;
}
RPCRT4_FreeHeader(*Header);
*Header = NULL;
HeapFree(GetProcessHeap(), 0, *Payload);
*Payload = NULL;
goto again;
}
/* success */
status = RPC_S_OK;
httpc->bytes_received += common_hdr.frag_len;
TRACE("httpc->bytes_received = 0x%x\n", httpc->bytes_received);
if (httpc->bytes_received > httpc->flow_control_mark)
{
RpcPktHdr *hdr = RPCRT4_BuildHttpFlowControlHeader(httpc->common.server,
httpc->bytes_received,
httpc->flow_control_increment,
&httpc->out_pipe_uuid);
if (hdr)
{
DWORD bytes_written;
BOOL ret2;
TRACE("sending flow control packet at 0x%x\n", httpc->bytes_received);
ret2 = InternetWriteFile(httpc->in_request, hdr, hdr->common.frag_len, &bytes_written);
RPCRT4_FreeHeader(hdr);
if (ret2)
httpc->flow_control_mark = httpc->bytes_received + httpc->flow_control_increment / 2;
}
}
fail:
if (status != RPC_S_OK) {
RPCRT4_FreeHeader(*Header);
*Header = NULL;
HeapFree(GetProcessHeap(), 0, *Payload);
*Payload = NULL;
}
return status;
}
static int rpcrt4_ncacn_http_write(RpcConnection *Connection,
const void *buffer, unsigned int count)
{
RpcConnection_http *httpc = (RpcConnection_http *) Connection;
DWORD bytes_written;
BOOL ret;
httpc->last_sent_time = ~0U; /* disable idle packet sending */
ret = InternetWriteFile(httpc->in_request, buffer, count, &bytes_written);
httpc->last_sent_time = GetTickCount();
TRACE("%p %p %u -> %s\n", httpc->in_request, buffer, count, ret ? "TRUE" : "FALSE");
return ret ? bytes_written : -1;
}
static int rpcrt4_ncacn_http_close(RpcConnection *Connection)
{
RpcConnection_http *httpc = (RpcConnection_http *) Connection;
TRACE("\n");
SetEvent(httpc->timer_cancelled);
if (httpc->in_request)
InternetCloseHandle(httpc->in_request);
httpc->in_request = NULL;
if (httpc->out_request)
InternetCloseHandle(httpc->out_request);
httpc->out_request = NULL;
if (httpc->app_info)
InternetCloseHandle(httpc->app_info);
httpc->app_info = NULL;
if (httpc->session)
InternetCloseHandle(httpc->session);
httpc->session = NULL;
RpcHttpAsyncData_Release(httpc->async_data);
if (httpc->cancel_event)
CloseHandle(httpc->cancel_event);
return 0;
}
static void rpcrt4_ncacn_http_cancel_call(RpcConnection *Connection)
{
RpcConnection_http *httpc = (RpcConnection_http *) Connection;
SetEvent(httpc->cancel_event);
}
static int rpcrt4_ncacn_http_wait_for_incoming_data(RpcConnection *Connection)
{
BOOL ret;
RpcConnection_http *httpc = (RpcConnection_http *) Connection;
RpcHttpAsyncData_AddRef(httpc->async_data);
ret = InternetQueryDataAvailable(httpc->out_request,
&httpc->async_data->inet_buffers.dwBufferLength, IRF_ASYNC, 0);
if (ret)
{
/* INTERNET_STATUS_REQUEST_COMPLETED won't be sent, so release our
* async ref now */
RpcHttpAsyncData_Release(httpc->async_data);
}
else
{
if (GetLastError() == ERROR_IO_PENDING)
{
HANDLE handles[2] = { httpc->async_data->completion_event, httpc->cancel_event };
DWORD result = WaitForMultipleObjects(2, handles, FALSE, DEFAULT_NCACN_HTTP_TIMEOUT);
if (result != WAIT_OBJECT_0)
{
TRACE("call cancelled\n");
return -1;
}
}
else
{
RpcHttpAsyncData_Release(httpc->async_data);
return -1;
}
}
/* success */
return 0;
}
static size_t rpcrt4_ncacn_http_get_top_of_tower(unsigned char *tower_data,
const char *networkaddr,
const char *endpoint)
{
return rpcrt4_ip_tcp_get_top_of_tower(tower_data, networkaddr,
EPM_PROTOCOL_HTTP, endpoint);
}
static RPC_STATUS rpcrt4_ncacn_http_parse_top_of_tower(const unsigned char *tower_data,
size_t tower_size,
char **networkaddr,
char **endpoint)
{
return rpcrt4_ip_tcp_parse_top_of_tower(tower_data, tower_size,
networkaddr, EPM_PROTOCOL_HTTP,
endpoint);
}
static const struct connection_ops conn_protseq_list[] = {
{ "ncacn_np",
{ EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB },
rpcrt4_conn_np_alloc,
rpcrt4_ncacn_np_open,
rpcrt4_ncacn_np_handoff,
rpcrt4_conn_np_read,
rpcrt4_conn_np_write,
rpcrt4_conn_np_close,
rpcrt4_conn_np_cancel_call,
rpcrt4_conn_np_wait_for_incoming_data,
rpcrt4_ncacn_np_get_top_of_tower,
rpcrt4_ncacn_np_parse_top_of_tower,
NULL,
},
{ "ncalrpc",
{ EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE },
rpcrt4_conn_np_alloc,
rpcrt4_ncalrpc_open,
rpcrt4_ncalrpc_handoff,
rpcrt4_conn_np_read,
rpcrt4_conn_np_write,
rpcrt4_conn_np_close,
rpcrt4_conn_np_cancel_call,
rpcrt4_conn_np_wait_for_incoming_data,
rpcrt4_ncalrpc_get_top_of_tower,
rpcrt4_ncalrpc_parse_top_of_tower,
NULL,
},
{ "ncacn_ip_tcp",
{ EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP },
rpcrt4_conn_tcp_alloc,
rpcrt4_ncacn_ip_tcp_open,
rpcrt4_conn_tcp_handoff,
rpcrt4_conn_tcp_read,
rpcrt4_conn_tcp_write,
rpcrt4_conn_tcp_close,
rpcrt4_conn_tcp_cancel_call,
rpcrt4_conn_tcp_wait_for_incoming_data,
rpcrt4_ncacn_ip_tcp_get_top_of_tower,
rpcrt4_ncacn_ip_tcp_parse_top_of_tower,
NULL,
},
{ "ncacn_http",
{ EPM_PROTOCOL_NCACN, EPM_PROTOCOL_HTTP },
rpcrt4_ncacn_http_alloc,
rpcrt4_ncacn_http_open,
rpcrt4_ncacn_http_handoff,
rpcrt4_ncacn_http_read,
rpcrt4_ncacn_http_write,
rpcrt4_ncacn_http_close,
rpcrt4_ncacn_http_cancel_call,
rpcrt4_ncacn_http_wait_for_incoming_data,
rpcrt4_ncacn_http_get_top_of_tower,
rpcrt4_ncacn_http_parse_top_of_tower,
rpcrt4_ncacn_http_receive_fragment,
},
};
static const struct protseq_ops protseq_list[] =
{
{
"ncacn_np",
rpcrt4_protseq_np_alloc,
rpcrt4_protseq_np_signal_state_changed,
rpcrt4_protseq_np_get_wait_array,
rpcrt4_protseq_np_free_wait_array,
rpcrt4_protseq_np_wait_for_new_connection,
rpcrt4_protseq_ncacn_np_open_endpoint,
},
{
"ncalrpc",
rpcrt4_protseq_np_alloc,
rpcrt4_protseq_np_signal_state_changed,
rpcrt4_protseq_np_get_wait_array,
rpcrt4_protseq_np_free_wait_array,
rpcrt4_protseq_np_wait_for_new_connection,
rpcrt4_protseq_ncalrpc_open_endpoint,
},
{
"ncacn_ip_tcp",
rpcrt4_protseq_sock_alloc,
rpcrt4_protseq_sock_signal_state_changed,
rpcrt4_protseq_sock_get_wait_array,
rpcrt4_protseq_sock_free_wait_array,
rpcrt4_protseq_sock_wait_for_new_connection,
rpcrt4_protseq_ncacn_ip_tcp_open_endpoint,
},
};
#define ARRAYSIZE(a) (sizeof((a)) / sizeof((a)[0]))
const struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq)
{
unsigned int i;
for(i=0; i<ARRAYSIZE(protseq_list); i++)
if (!strcmp(protseq_list[i].name, protseq))
return &protseq_list[i];
return NULL;
}
static const struct connection_ops *rpcrt4_get_conn_protseq_ops(const char *protseq)
{
unsigned int i;
for(i=0; i<ARRAYSIZE(conn_protseq_list); i++)
if (!strcmp(conn_protseq_list[i].name, protseq))
return &conn_protseq_list[i];
return NULL;
}
/**** interface to rest of code ****/
RPC_STATUS RPCRT4_OpenClientConnection(RpcConnection* Connection)
{
TRACE("(Connection == ^%p)\n", Connection);
assert(!Connection->server);
return Connection->ops->open_connection_client(Connection);
}
RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
{
TRACE("(Connection == ^%p)\n", Connection);
if (SecIsValidHandle(&Connection->ctx))
{
DeleteSecurityContext(&Connection->ctx);
SecInvalidateHandle(&Connection->ctx);
}
rpcrt4_conn_close(Connection);
return RPC_S_OK;
}
RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server,
LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint,
LPCWSTR NetworkOptions, RpcAuthInfo* AuthInfo, RpcQualityOfService *QOS)
{
static LONG next_id;
const struct connection_ops *ops;
RpcConnection* NewConnection;
ops = rpcrt4_get_conn_protseq_ops(Protseq);
if (!ops)
{
FIXME("not supported for protseq %s\n", Protseq);
return RPC_S_PROTSEQ_NOT_SUPPORTED;
}
NewConnection = ops->alloc();
NewConnection->Next = NULL;
NewConnection->server_binding = NULL;
NewConnection->server = server;
NewConnection->ops = ops;
NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
NewConnection->NetworkOptions = RPCRT4_strdupW(NetworkOptions);
NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
memset(&NewConnection->ActiveInterface, 0, sizeof(NewConnection->ActiveInterface));
NewConnection->NextCallId = 1;
SecInvalidateHandle(&NewConnection->ctx);
memset(&NewConnection->exp, 0, sizeof(NewConnection->exp));
NewConnection->attr = 0;
if (AuthInfo) RpcAuthInfo_AddRef(AuthInfo);
NewConnection->AuthInfo = AuthInfo;
NewConnection->auth_context_id = InterlockedIncrement( &next_id );
NewConnection->encryption_auth_len = 0;
NewConnection->signature_auth_len = 0;
if (QOS) RpcQualityOfService_AddRef(QOS);
NewConnection->QOS = QOS;
list_init(&NewConnection->conn_pool_entry);
NewConnection->async_state = NULL;
TRACE("connection: %p\n", NewConnection);
*Connection = NewConnection;
return RPC_S_OK;
}
static 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,
OldConnection->AuthInfo, OldConnection->QOS);
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->NetworkOptions);
if (Connection->AuthInfo) RpcAuthInfo_Release(Connection->AuthInfo);
if (Connection->QOS) RpcQualityOfService_Release(Connection->QOS);
/* server-only */
if (Connection->server_binding) RPCRT4_ReleaseBinding(Connection->server_binding);
HeapFree(GetProcessHeap(), 0, Connection);
return RPC_S_OK;
}
RPC_STATUS RpcTransport_GetTopOfTower(unsigned char *tower_data,
size_t *tower_size,
const char *protseq,
const char *networkaddr,
const char *endpoint)
{
twr_empty_floor_t *protocol_floor;
const struct connection_ops *protseq_ops = rpcrt4_get_conn_protseq_ops(protseq);
*tower_size = 0;
if (!protseq_ops)
return RPC_S_INVALID_RPC_PROTSEQ;
if (!tower_data)
{
*tower_size = sizeof(*protocol_floor);
*tower_size += protseq_ops->get_top_of_tower(NULL, networkaddr, endpoint);
return RPC_S_OK;
}
protocol_floor = (twr_empty_floor_t *)tower_data;
protocol_floor->count_lhs = sizeof(protocol_floor->protid);
protocol_floor->protid = protseq_ops->epm_protocols[0];
protocol_floor->count_rhs = 0;
tower_data += sizeof(*protocol_floor);
*tower_size = protseq_ops->get_top_of_tower(tower_data, networkaddr, endpoint);
if (!*tower_size)
return EPT_S_NOT_REGISTERED;
*tower_size += sizeof(*protocol_floor);
return RPC_S_OK;
}
RPC_STATUS RpcTransport_ParseTopOfTower(const unsigned char *tower_data,
size_t tower_size,
char **protseq,
char **networkaddr,
char **endpoint)
{
const twr_empty_floor_t *protocol_floor;
const twr_empty_floor_t *floor4;
const struct connection_ops *protseq_ops = NULL;
RPC_STATUS status;
unsigned int i;
if (tower_size < sizeof(*protocol_floor))
return EPT_S_NOT_REGISTERED;
protocol_floor = (const twr_empty_floor_t *)tower_data;
tower_data += sizeof(*protocol_floor);
tower_size -= sizeof(*protocol_floor);
if ((protocol_floor->count_lhs != sizeof(protocol_floor->protid)) ||
(protocol_floor->count_rhs > tower_size))
return EPT_S_NOT_REGISTERED;
tower_data += protocol_floor->count_rhs;
tower_size -= protocol_floor->count_rhs;
floor4 = (const twr_empty_floor_t *)tower_data;
if ((tower_size < sizeof(*floor4)) ||
(floor4->count_lhs != sizeof(floor4->protid)))
return EPT_S_NOT_REGISTERED;
for(i = 0; i < ARRAYSIZE(conn_protseq_list); i++)
if ((protocol_floor->protid == conn_protseq_list[i].epm_protocols[0]) &&
(floor4->protid == conn_protseq_list[i].epm_protocols[1]))
{
protseq_ops = &conn_protseq_list[i];
break;
}
if (!protseq_ops)
return EPT_S_NOT_REGISTERED;
status = protseq_ops->parse_top_of_tower(tower_data, tower_size, networkaddr, endpoint);
if ((status == RPC_S_OK) && protseq)
{
*protseq = I_RpcAllocate(strlen(protseq_ops->name) + 1);
strcpy(*protseq, protseq_ops->name);
}
return status;
}
/***********************************************************************
* RpcNetworkIsProtseqValidW (RPCRT4.@)
*
* Checks if the given protocol sequence is known by the RPC system.
* If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
*
*/
RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(RPC_WSTR protseq)
{
char ps[0x10];
WideCharToMultiByte(CP_ACP, 0, protseq, -1,
ps, sizeof ps, NULL, NULL);
if (rpcrt4_get_conn_protseq_ops(ps))
return RPC_S_OK;
FIXME("Unknown protseq %s\n", debugstr_w(protseq));
return RPC_S_INVALID_RPC_PROTSEQ;
}
/***********************************************************************
* RpcNetworkIsProtseqValidA (RPCRT4.@)
*/
RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(RPC_CSTR protseq)
{
UNICODE_STRING protseqW;
if (RtlCreateUnicodeStringFromAsciiz(&protseqW, (char*)protseq))
{
RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
RtlFreeUnicodeString(&protseqW);
return ret;
}
return RPC_S_OUT_OF_MEMORY;
}
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