/* * 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 #include #include #include #include #include #if defined(__MINGW32__) || defined (_MSC_VER) # include # ifndef EADDRINUSE # define EADDRINUSE WSAEADDRINUSE # endif # ifndef EAGAIN # define EAGAIN WSAEWOULDBLOCK # endif # undef errno # define errno WSAGetLastError() #else # include # ifdef HAVE_UNISTD_H # include # endif # include # ifdef HAVE_SYS_SOCKET_H # include # endif # ifdef HAVE_NETINET_IN_H # include # endif # ifdef HAVE_NETINET_TCP_H # include # endif # ifdef HAVE_ARPA_INET_H # include # endif # ifdef HAVE_NETDB_H # include # endif # ifdef HAVE_SYS_POLL_H # include # endif # ifdef HAVE_SYS_FILIO_H # include # endif # ifdef HAVE_SYS_IOCTL_H # include # 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) : ""); 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 = ~0UL; /* 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; iserver); 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; } 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; }