| /* |
| * 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 |
| #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 |
| # define closesocket close |
| #endif /* defined(__MINGW32__) || defined (_MSC_VER) */ |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winnls.h" |
| #include "winerror.h" |
| #include "winternl.h" |
| #include "wine/unicode.h" |
| |
| #include "rpc.h" |
| #include "rpcndr.h" |
| |
| #include "wine/debug.h" |
| |
| #include "rpc_binding.h" |
| #include "rpc_message.h" |
| #include "rpc_server.h" |
| #include "epm_towers.h" |
| |
| #ifndef SOL_TCP |
| # define SOL_TCP IPPROTO_TCP |
| #endif |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(rpc); |
| |
| /**** 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) |
| return RPC_S_SERVER_UNAVAILABLE; |
| if (!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, LPSTR endpoint) |
| { |
| static const char prefix[] = "\\\\.\\pipe\\lrpc\\"; |
| RPC_STATUS r; |
| LPSTR pname; |
| RpcConnection *Connection; |
| |
| 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, LPSTR endpoint) |
| { |
| static const char prefix[] = "\\\\."; |
| RPC_STATUS r; |
| LPSTR pname; |
| RpcConnection *Connection; |
| |
| 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 || !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; |
| tower_data += networkaddr_size; |
| |
| 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)) |
| 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)) |
| 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(networkaddr) + 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_SMB; |
| pipe_floor->count_rhs = endpoint_size; |
| |
| memcpy(tower_data, endpoint, endpoint_size); |
| tower_data += 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); |
| |
| *networkaddr = NULL; |
| *endpoint = NULL; |
| |
| 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_SMB) || |
| (pipe_floor->count_rhs > tower_size)) |
| return EPT_S_NOT_REGISTERED; |
| |
| 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 ****/ |
| |
| typedef struct _RpcConnection_tcp |
| { |
| RpcConnection common; |
| int sock; |
| int cancel_fds[2]; |
| } RpcConnection_tcp; |
| |
| 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 (socketpair(PF_UNIX, SOCK_STREAM, 0, tcpc->cancel_fds) < 0) |
| { |
| ERR("socketpair() failed: %s\n", strerror(errno)); |
| 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; |
| |
| 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, &val, sizeof(val)); |
| fcntl(sock, F_SETFL, O_NONBLOCK); /* make socket 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, LPSTR 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, &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; |
| |
| 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)); |
| 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; |
| } |
| create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE, |
| protseq->Protseq, NULL, |
| endpoint, 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...) |
| */ |
| ret = fcntl(sock, F_SETFL, O_NONBLOCK); |
| 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; |
| } |
| |
| 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; |
| |
| 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; |
| } |
| /* reset to blocking behaviour */ |
| fcntl(ret, F_SETFL, 0); |
| 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 |
| { |
| 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 -1; |
| } |
| if (pfds[1].revents & POLLIN) /* canceled */ |
| { |
| char dummy; |
| read(pfds[1].fd, &dummy, sizeof(dummy)); |
| 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 |
| { |
| 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 -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; |
| close(tcpc->cancel_fds[0]); |
| close(tcpc->cancel_fds[1]); |
| return 0; |
| } |
| |
| static void rpcrt4_conn_tcp_cancel_call(RpcConnection *Connection) |
| { |
| RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection; |
| char dummy = 1; |
| |
| TRACE("%p\n", Connection); |
| |
| write(tcpc->cancel_fds[1], &dummy, 1); |
| } |
| |
| static int rpcrt4_conn_tcp_wait_for_incoming_data(RpcConnection *Connection) |
| { |
| RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection; |
| struct pollfd pfds[2]; |
| |
| TRACE("%p\n", Connection); |
| |
| 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 -1; |
| } |
| if (pfds[1].revents & POLLIN) /* canceled */ |
| { |
| char dummy; |
| read(pfds[1].fd, &dummy, sizeof(dummy)); |
| 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) |
| { |
| 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 = EPM_PROTOCOL_TCP; |
| 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_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data, |
| size_t tower_size, |
| char **networkaddr, |
| 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 != EPM_PROTOCOL_TCP) || |
| (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 _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, 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; |
| } |
| |
| 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, |
| }, |
| { "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, |
| }, |
| { "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, |
| } |
| }; |
| |
| |
| 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) |
| { |
| 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) |
| { |
| 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) |
| { |
| 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->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; |
| } |
| |
| |
| 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; |
| 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; |
| } |
