/* -*- mode: C; c-file-style: "gnu" -*- */ /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-BUS implementation) * * Copyright (C) 2002, 2003 Red Hat, Inc. * Copyright (C) 2003 CodeFactory AB * Copyright (C) 2005 Novell, Inc. * Copyright (C) 2006 Ralf Habacker * Copyright (C) 2006 Peter Kümmel * Copyright (C) 2006 Christian Ehrlicher * * Licensed under the Academic Free License version 2.1 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ /* #define ENABLE_DBUSUSERINFO */ struct DBusCredentials{ int uid; int gid; int pid; }; #undef open #define STRSAFE_NO_DEPRECATE #ifndef DBUS_WINCE #define _WIN32_WINNT 0x0500 #endif #include "dbus-internals.h" #include "dbus-sysdeps.h" #include "dbus-threads.h" #include "dbus-protocol.h" #include "dbus-string.h" #include "dbus-sysdeps-win.h" #include "dbus-protocol.h" #include "dbus-hash.h" #include "dbus-sockets-win.h" #include "dbus-list.h" #include "dbus-credentials.h" #include #include #include #include #include #ifndef O_BINARY #define O_BINARY 0 #endif #ifndef HAVE_SOCKLEN_T #define socklen_t int #endif _DBUS_DEFINE_GLOBAL_LOCK (win_fds); _DBUS_DEFINE_GLOBAL_LOCK (sid_atom_cache); #ifdef ENABLE_DBUSUSERINFO typedef struct { int uid; char *username; int n_group_ids; dbus_gid_t *group_ids; int primary_gid; char *homedir; } DBusUserInfo; #endif static void _dbus_lock_sockets() { _dbus_assert (win_fds!=0); _DBUS_LOCK (win_fds); } static void _dbus_unlock_sockets() { _dbus_assert (win_fds!=0); _DBUS_UNLOCK (win_fds); } #ifdef _DBUS_WIN_USE_RANDOMIZER static int win_encap_randomizer; #endif static DBusHashTable *sid_atom_cache = NULL; static DBusString dbusdir; static int working_dir_init = 0; int _dbus_init_working_dir(char *s) { /* change working directory to one level above of dbus-daemon executable path. This allows the usage of relative path in config files or command line parameters */ DBusString daemon_path,bin_path; if (!_dbus_string_init (&daemon_path)) return FALSE; if (!_dbus_string_init (&bin_path)) return FALSE; if (!_dbus_string_init (&dbusdir)) return FALSE; _dbus_string_append(&daemon_path,s); _dbus_string_get_dirname(&daemon_path,&bin_path); _dbus_string_get_dirname(&bin_path,&dbusdir); chdir(_dbus_string_get_const_data(&dbusdir)); _dbus_verbose ("Change working path to %s\n",_dbus_string_get_const_data (&dbusdir)); working_dir_init = 1; return TRUE; } DBusString *_dbus_get_working_dir(void) { if (!working_dir_init) return NULL; _dbus_verbose ("retrieving working path %s\n",_dbus_string_get_const_data (&dbusdir)); return &dbusdir; } /** * File interface * */ dbus_bool_t _dbus_file_open (DBusFile *file, const char *filename, int oflag, int pmode) { if (pmode!=-1) file->FDATA = _open (filename, oflag, pmode); else file->FDATA = _open (filename, oflag); if (file->FDATA >= 0) return TRUE; else { file->FDATA = -1; return FALSE; } } dbus_bool_t _dbus_file_close (DBusFile *file, DBusError *error) { const int fd = file->FDATA; _DBUS_ASSERT_ERROR_IS_CLEAR (error); _dbus_assert (fd >= 0); if (_close (fd) == -1) { dbus_set_error (error, _dbus_error_from_errno (errno), "Could not close fd %d: %s", fd, _dbus_strerror (errno)); return FALSE; } file->FDATA = -1; _dbus_verbose ("closed C file descriptor %d:\n",fd); return TRUE; } int _dbus_file_read(DBusFile *file, DBusString *buffer, int count) { const int fd = file->FDATA; int bytes_read; int start; char *data; _dbus_assert (count >= 0); start = _dbus_string_get_length (buffer); if (!_dbus_string_lengthen (buffer, count)) { errno = ENOMEM; return -1; } data = _dbus_string_get_data_len (buffer, start, count); _dbus_assert (fd >= 0); _dbus_verbose ("read: count=%d fd=%d\n", count, fd); bytes_read = read (fd, data, count); if (bytes_read == -1) _dbus_verbose ("read: failed: %s\n", _dbus_strerror (errno)); else _dbus_verbose ("read: = %d\n", bytes_read); if (bytes_read < 0) { /* put length back (note that this doesn't actually realloc anything) */ _dbus_string_set_length (buffer, start); return -1; } else { /* put length back (doesn't actually realloc) */ _dbus_string_set_length (buffer, start + bytes_read); #if 0 if (bytes_read > 0) _dbus_verbose_bytes_of_string (buffer, start, bytes_read); #endif return bytes_read; } } int _dbus_file_write (DBusFile *file, const DBusString *buffer, int start, int len) { const int fd = file->FDATA; const char *data; int bytes_written; data = _dbus_string_get_const_data_len (buffer, start, len); _dbus_assert (fd >= 0); _dbus_verbose ("write: len=%d fd=%d\n", len, fd); bytes_written = write (fd, data, len); if (bytes_written == -1) _dbus_verbose ("write: failed: %s\n", _dbus_strerror (errno)); else _dbus_verbose ("write: = %d\n", bytes_written); #if 0 if (bytes_written > 0) _dbus_verbose_bytes_of_string (buffer, start, bytes_written); #endif return bytes_written; } dbus_bool_t _dbus_is_valid_file (DBusFile* file) { return file->FDATA >= 0; } dbus_bool_t _dbus_fstat (DBusFile *file, struct stat *sb) { return fstat(file->FDATA, sb) >= 0; } /** * write data to a pipe. * * @param pipe the pipe instance * @param buffer the buffer to write data from * @param start the first byte in the buffer to write * @param len the number of bytes to try to write * @param error error return * @returns the number of bytes written or -1 on error */ int _dbus_pipe_write (DBusPipe *pipe, const DBusString *buffer, int start, int len, DBusError *error) { int written; DBusFile file; file.FDATA = pipe->fd_or_handle; written = _dbus_file_write (&file, buffer, start, len); if (written < 0) { dbus_set_error (error, DBUS_ERROR_FAILED, "Writing to pipe: %s\n", _dbus_strerror (errno)); } return written; } /** * close a pipe. * * @param pipe the pipe instance * @param error return location for an error * @returns #FALSE if error is set */ int _dbus_pipe_close (DBusPipe *pipe, DBusError *error) { DBusFile file; file.FDATA = pipe->fd_or_handle; if (_dbus_file_close (&file, error) < 0) { return -1; } else { _dbus_pipe_invalidate (pipe); return 0; } } #undef FDATA /** * Socket interface * */ static DBusSocket *win_fds = NULL; static int win_n_fds = 0; // is this the size? rename to win_fds_size? # #if 0 #define TO_HANDLE(n) ((n)^win32_encap_randomizer) #define FROM_HANDLE(n) ((n)^win32_encap_randomizer) #else #define TO_HANDLE(n) ((n)+0x10000000) #define FROM_HANDLE(n) ((n)-0x10000000) #define IS_HANDLE(n) ((n)&0x10000000) #endif static void _dbus_win_deallocate_fd (int fd) { _DBUS_LOCK (win_fds); win_fds[FROM_HANDLE (fd)].is_used = 0; _DBUS_UNLOCK (win_fds); } static int _dbus_win_allocate_fd (void) { int i; _DBUS_LOCK (win_fds); if (win_fds == NULL) { #ifdef _DBUS_WIN_USE_RANDOMIZER DBusString random; #endif win_n_fds = 16; /* Use malloc to avoid memory leak failure in dbus-test */ win_fds = malloc (win_n_fds * sizeof (*win_fds)); _dbus_assert (win_fds != NULL); for (i = 0; i < win_n_fds; i++) win_fds[i].is_used = 0; #ifdef _DBUS_WIN_USE_RANDOMIZER _dbus_string_init (&random); _dbus_generate_random_bytes (&random, sizeof (int)); memmove (&win_encap_randomizer, _dbus_string_get_const_data (&random), sizeof (int)); win_encap_randomizer &= 0xFF; _dbus_string_free (&random); #endif } for (i = 0; i < win_n_fds && win_fds[i].is_used != 0; i++) ; if (i == win_n_fds) { int oldn = win_n_fds; int j; win_n_fds += 16; win_fds = realloc (win_fds, win_n_fds * sizeof (*win_fds)); _dbus_assert (win_fds != NULL); for (j = oldn; j < win_n_fds; j++) win_fds[i].is_used = 0; } memset(&win_fds[i], 0, sizeof(win_fds[i])); win_fds[i].is_used = 1; win_fds[i].fd = -1; win_fds[i].port_file_fd = -1; win_fds[i].close_on_exec = FALSE; win_fds[i].non_blocking = FALSE; _DBUS_UNLOCK (win_fds); return i; } static int _dbus_create_handle_from_socket (int s) { int i; int handle = -1; // check: parameter must be a valid value _dbus_assert(s != -1); _dbus_assert(!IS_HANDLE(s)); // get index of a new position in the map i = _dbus_win_allocate_fd (); // fill new posiiton in the map: value->index win_fds[i].fd = s; win_fds[i].is_used = 1; // create handle from the index: index->handle handle = TO_HANDLE (i); _dbus_verbose ("_dbus_create_handle_from_value, value: %d, handle: %d\n", s, handle); return handle; } int _dbus_socket_to_handle (DBusSocket *s) { int i; int handle = -1; // check: parameter must be a valid socket _dbus_assert(s != NULL); _dbus_assert(s->fd != -1); _dbus_assert(!IS_HANDLE(s->fd)); _DBUS_LOCK (win_fds); // at the first call there is no win_fds // will be constructed _dbus_create_handle_from_socket // because handle = -1 if (win_fds != NULL) { // search for the value in the map // find the index of the value: value->index for (i = 0; i < win_n_fds; i++) if (win_fds[i].is_used == 1 && win_fds[i].fd == s->fd) { // create handle from the index: index->handle handle = TO_HANDLE (i); break; } } _DBUS_UNLOCK (win_fds); if (handle == -1) { handle = _dbus_create_handle_from_socket(s->fd); } _dbus_assert(handle != -1); return handle; } static void _dbus_handle_to_socket_unlocked (int handle, DBusSocket **ptr) { int i; // check: parameter must be a valid handle _dbus_assert(handle != -1); _dbus_assert(IS_HANDLE(handle)); _dbus_assert(ptr != NULL); // map from handle to index: handle->index i = FROM_HANDLE (handle); _dbus_assert (win_fds != NULL); _dbus_assert (i >= 0 && i < win_n_fds); // check for if fd is valid _dbus_assert (win_fds[i].is_used == 1); // get socket from index: index->socket *ptr = &win_fds[i]; _dbus_verbose ("_dbus_socket_to_handle_unlocked: socket=%d, handle=%d, index=%d\n", (*ptr)->fd, handle, i); } void _dbus_handle_to_socket (int handle, DBusSocket **ptr) { _dbus_lock_sockets(); _dbus_handle_to_socket_unlocked (handle, ptr); _dbus_unlock_sockets(); } #undef TO_HANDLE #undef IS_HANDLE #undef FROM_HANDLE #define FROM_HANDLE(n) 1==DBUS_WIN_DONT_USE__FROM_HANDLE__DIRECTLY #define win_fds 1==DBUS_WIN_DONT_USE_win_fds_DIRECTLY /** * Thin wrapper around the read() system call that appends * the data it reads to the DBusString buffer. It appends * up to the given count, and returns the same value * and same errno as read(). The only exception is that * _dbus_read() handles EINTR for you. _dbus_read() can * return ENOMEM, even though regular UNIX read doesn't. * * @param fd the file descriptor to read from * @param buffer the buffer to append data to * @param count the amount of data to read * @returns the number of bytes read or -1 */ int _dbus_read_socket (int handle, DBusString *buffer, int count) { DBusSocket *s; int bytes_read; int start; char *data; _dbus_assert (count >= 0); start = _dbus_string_get_length (buffer); if (!_dbus_string_lengthen (buffer, count)) { errno = ENOMEM; return -1; } data = _dbus_string_get_data_len (buffer, start, count); _dbus_handle_to_socket(handle, &s); if(s->is_used) { _dbus_verbose ("recv: count=%d socket=%d\n", count, s->fd); bytes_read = recv (s->fd, data, count, 0); if (bytes_read == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO(); _dbus_verbose ("recv: failed: %s\n", _dbus_strerror (errno)); bytes_read = -1; } else _dbus_verbose ("recv: = %d\n", bytes_read); } else { _dbus_assert_not_reached ("no valid socket"); } if (bytes_read < 0) { /* put length back (note that this doesn't actually realloc anything) */ _dbus_string_set_length (buffer, start); return -1; } else { /* put length back (doesn't actually realloc) */ _dbus_string_set_length (buffer, start + bytes_read); #if 0 if (bytes_read > 0) _dbus_verbose_bytes_of_string (buffer, start, bytes_read); #endif return bytes_read; } } /** * Thin wrapper around the write() system call that writes a part of a * DBusString and handles EINTR for you. * * @param fd the file descriptor to write * @param buffer the buffer to write data from * @param start the first byte in the buffer to write * @param len the number of bytes to try to write * @returns the number of bytes written or -1 on error */ int _dbus_write_socket (int handle, const DBusString *buffer, int start, int len) { DBusSocket *s; int is_used; const char *data; int bytes_written; data = _dbus_string_get_const_data_len (buffer, start, len); _dbus_handle_to_socket(handle, &s); if (s->is_used) { _dbus_verbose ("send: len=%d socket=%d\n", len, s->fd); bytes_written = send (s->fd, data, len, 0); if (bytes_written == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO(); _dbus_verbose ("send: failed: %s\n", _dbus_strerror (errno)); bytes_written = -1; } else _dbus_verbose ("send: = %d\n", bytes_written); } else { _dbus_assert_not_reached ("unhandled fd type"); } #if 0 if (bytes_written > 0) _dbus_verbose_bytes_of_string (buffer, start, bytes_written); #endif return bytes_written; } /** * Closes a file descriptor. * * @param fd the file descriptor * @param error error object * @returns #FALSE if error set */ dbus_bool_t _dbus_close_socket (int handle, DBusError *error) { DBusSocket *s; _DBUS_ASSERT_ERROR_IS_CLEAR (error); _dbus_lock_sockets(); _dbus_handle_to_socket_unlocked (handle, &s); if (s->is_used) { if (s->port_file_fd >= 0) { _chsize (s->port_file_fd, 0); close (s->port_file_fd); s->port_file_fd = -1; unlink (_dbus_string_get_const_data (&s->port_file)); free ((char *) _dbus_string_get_const_data (&s->port_file)); } if (closesocket (s->fd) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Could not close socket: socket=%d, handle=%d, %s", s->fd, handle, _dbus_strerror (errno)); _dbus_unlock_sockets(); return FALSE; } _dbus_verbose ("_dbus_close_socket: socket=%d, handle=%d\n", s->fd, handle); } else { _dbus_assert_not_reached ("unhandled fd type"); } _dbus_unlock_sockets(); _dbus_win_deallocate_fd (handle); return TRUE; } /** * Sets the file descriptor to be close * on exec. Should be called for all file * descriptors in D-Bus code. * * @param fd the file descriptor */ void _dbus_fd_set_close_on_exec (int handle) { DBusSocket *s; if (handle < 0) return; _dbus_lock_sockets(); _dbus_handle_to_socket_unlocked (handle, &s); s->close_on_exec = TRUE; _dbus_unlock_sockets(); } /** * Sets a file descriptor to be nonblocking. * * @param fd the file descriptor. * @param error address of error location. * @returns #TRUE on success. */ dbus_bool_t _dbus_set_fd_nonblocking (int handle, DBusError *error) { DBusSocket *s; u_long one = 1; _DBUS_ASSERT_ERROR_IS_CLEAR (error); _dbus_lock_sockets(); _dbus_handle_to_socket_unlocked(handle, &s); if (s->is_used) { if (ioctlsocket (s->fd, FIONBIO, &one) == SOCKET_ERROR) { dbus_set_error (error, _dbus_error_from_errno (WSAGetLastError ()), "Failed to set socket %d:%d to nonblocking: %s", s->fd, _dbus_strerror (WSAGetLastError ())); _dbus_unlock_sockets(); return FALSE; } } else { _dbus_assert_not_reached ("unhandled fd type"); } _dbus_unlock_sockets(); return TRUE; } /** * Like _dbus_write() but will use writev() if possible * to write both buffers in sequence. The return value * is the number of bytes written in the first buffer, * plus the number written in the second. If the first * buffer is written successfully and an error occurs * writing the second, the number of bytes in the first * is returned (i.e. the error is ignored), on systems that * don't have writev. Handles EINTR for you. * The second buffer may be #NULL. * * @param fd the file descriptor * @param buffer1 first buffer * @param start1 first byte to write in first buffer * @param len1 number of bytes to write from first buffer * @param buffer2 second buffer, or #NULL * @param start2 first byte to write in second buffer * @param len2 number of bytes to write in second buffer * @returns total bytes written from both buffers, or -1 on error */ int _dbus_write_socket_two (int handle, const DBusString *buffer1, int start1, int len1, const DBusString *buffer2, int start2, int len2) { DBusSocket *s; WSABUF vectors[2]; const char *data1; const char *data2; int rc; DWORD bytes_written; int ret1; _dbus_assert (buffer1 != NULL); _dbus_assert (start1 >= 0); _dbus_assert (start2 >= 0); _dbus_assert (len1 >= 0); _dbus_assert (len2 >= 0); _dbus_handle_to_socket(handle, &s); data1 = _dbus_string_get_const_data_len (buffer1, start1, len1); if (buffer2 != NULL) data2 = _dbus_string_get_const_data_len (buffer2, start2, len2); else { data2 = NULL; start2 = 0; len2 = 0; } if (s->is_used) { vectors[0].buf = (char*) data1; vectors[0].len = len1; vectors[1].buf = (char*) data2; vectors[1].len = len2; _dbus_verbose ("WSASend: len1+2=%d+%d socket=%d\n", len1, len2, s->fd); rc = WSASend (s->fd, vectors, data2 ? 2 : 1, &bytes_written, 0, NULL, NULL); if (rc < 0) { DBUS_SOCKET_SET_ERRNO (); _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror (errno)); bytes_written = -1; } else _dbus_verbose ("WSASend: = %ld\n", bytes_written); return bytes_written; } else { _dbus_assert_not_reached ("unhandled fd type"); } return 0; } #if 0 /** * Opens the client side of a Windows named pipe. The connection D-BUS * file descriptor index is returned. It is set up as nonblocking. * * @param path the path to named pipe socket * @param error return location for error code * @returns connection D-BUS file descriptor or -1 on error */ int _dbus_connect_named_pipe (const char *path, DBusError *error) { _dbus_assert_not_reached ("not implemented"); } #endif #ifdef ENABLE_DBUSUSERINFO dbus_bool_t _dbus_account_to_win_sid (const wchar_t *waccount, void **ppsid, DBusError *error) { dbus_bool_t retval = FALSE; DWORD sid_length, wdomain_length; SID_NAME_USE use; wchar_t *wdomain; *ppsid = NULL; sid_length = 0; wdomain_length = 0; if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length, NULL, &wdomain_length, &use) && GetLastError () != ERROR_INSUFFICIENT_BUFFER) { _dbus_win_set_error_from_win_error (error, GetLastError ()); return FALSE; } *ppsid = dbus_malloc (sid_length); if (!*ppsid) { _DBUS_SET_OOM (error); return FALSE; } wdomain = dbus_new (wchar_t, wdomain_length); if (!wdomain) { _DBUS_SET_OOM (error); goto out1; } if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length, wdomain, &wdomain_length, &use)) { _dbus_win_set_error_from_win_error (error, GetLastError ()); goto out2; } if (!IsValidSid ((PSID) *ppsid)) { dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID"); goto out2; } retval = TRUE; out2: dbus_free (wdomain); out1: if (!retval) { dbus_free (*ppsid); *ppsid = NULL; } return retval; } dbus_bool_t fill_win_user_info_name_and_groups (wchar_t *wname, wchar_t *wdomain, DBusUserInfo *info, DBusError *error) { #ifdef DBUS_WINCE return TRUE; #else dbus_bool_t retval = FALSE; char *name, *domain; LPLOCALGROUP_USERS_INFO_0 local_groups = NULL; LPGROUP_USERS_INFO_0 global_groups = NULL; DWORD nread, ntotal; name = _dbus_win_utf16_to_utf8 (wname, error); if (!name) return FALSE; domain = _dbus_win_utf16_to_utf8 (wdomain, error); if (!domain) goto out0; info->username = dbus_malloc (strlen (domain) + 1 + strlen (name) + 1); if (!info->username) { _DBUS_SET_OOM (error); goto out1; } strcpy (info->username, domain); strcat (info->username, "\\"); strcat (info->username, name); info->n_group_ids = 0; if (NetUserGetLocalGroups (NULL, wname, 0, LG_INCLUDE_INDIRECT, (LPBYTE *) &local_groups, MAX_PREFERRED_LENGTH, &nread, &ntotal) == NERR_Success) { DWORD i; int n; info->group_ids = dbus_new (dbus_gid_t, nread); if (!info->group_ids) { _DBUS_SET_OOM (error); goto out3; } for (i = n = 0; i < nread; i++) { PSID group_sid; if (_dbus_account_to_win_sid (local_groups[i].lgrui0_name, &group_sid, error)) { info->group_ids[n++] = _dbus_win_sid_to_uid_t (group_sid); dbus_free (group_sid); } } info->n_group_ids = n; } if (NetUserGetGroups (NULL, wname, 0, (LPBYTE *) &global_groups, MAX_PREFERRED_LENGTH, &nread, &ntotal) == NERR_Success) { DWORD i; int n = info->n_group_ids; info->group_ids = dbus_realloc (info->group_ids, (n + nread) * sizeof (dbus_gid_t)); if (!info->group_ids) { _DBUS_SET_OOM (error); goto out4; } for (i = 0; i < nread; i++) { PSID group_sid; if (_dbus_account_to_win_sid (global_groups[i].grui0_name, &group_sid, error)) { info->group_ids[n++] = _dbus_win_sid_to_uid_t (group_sid); dbus_free (group_sid); } } info->n_group_ids = n; } if (info->n_group_ids > 0) { /* FIXME: find out actual primary group */ info->primary_gid = info->group_ids[0]; } else { info->group_ids = dbus_new (dbus_gid_t, 1); info->n_group_ids = 1; info->group_ids[0] = DBUS_GID_UNSET; info->primary_gid = DBUS_GID_UNSET; } retval = TRUE; out4: if (global_groups != NULL) NetApiBufferFree (global_groups); out3: if (local_groups != NULL) NetApiBufferFree (local_groups); out1: dbus_free (domain); out0: dbus_free (name); return retval; #endif //DBUS_WINCE } dbus_bool_t fill_win_user_info_homedir (wchar_t *wname, wchar_t *wdomain, DBusUserInfo *info, DBusError *error) { #ifdef DBUS_WINCE //TODO return TRUE; #else dbus_bool_t retval = FALSE; USER_INFO_1 *user_info = NULL; wchar_t wcomputername[MAX_COMPUTERNAME_LENGTH + 1]; DWORD wcomputername_length = MAX_COMPUTERNAME_LENGTH + 1; dbus_bool_t local_computer; wchar_t *dc = NULL; NET_API_STATUS ret = 0; /* If the domain is this computer's name, assume it's a local user. * Otherwise look up a DC for the domain, and ask it. */ GetComputerNameW (wcomputername, &wcomputername_length); local_computer = (wcsicmp (wcomputername, wdomain) == 0); if (!local_computer) { ret = NetGetAnyDCName (NULL, wdomain, (LPBYTE *) &dc); if (ret != NERR_Success) { info->homedir = _dbus_strdup ("\\"); _dbus_verbose("NetGetAnyDCName() failed with errorcode %d '%s'\n",ret,_dbus_lm_strerror(ret)); return TRUE; } } /* No way to find out the profile of another user, let's try the * "home directory" from NetUserGetInfo's USER_INFO_1. */ ret = NetUserGetInfo (dc, wname, 1, (LPBYTE *) &user_info); if (ret == NERR_Success ) if(user_info->usri1_home_dir != NULL && user_info->usri1_home_dir != (LPWSTR)0xfeeefeee && /* freed memory http://www.gamedev.net/community/forums/topic.asp?topic_id=158402 */ user_info->usri1_home_dir[0] != '\0') { info->homedir = _dbus_win_utf16_to_utf8 (user_info->usri1_home_dir, error); if (!info->homedir) goto out1; } else { _dbus_verbose("NetUserGetInfo() returned no home dir entry\n"); /* Not set, so use something random. */ info->homedir = _dbus_strdup ("\\"); } else { char *dc_string = _dbus_win_utf16_to_utf8(dc,error); char *user_name = _dbus_win_utf16_to_utf8(wname,error); _dbus_verbose("NetUserGetInfo() for user '%s' failed with errorcode %d '%s', %s\n",user_name, ret,_dbus_lm_strerror(ret),dc_string); dbus_free(user_name); dbus_free(dc_string); /* Not set, so use something random. */ info->homedir = _dbus_strdup ("\\"); } retval = TRUE; out1: if (dc != NULL) NetApiBufferFree (dc); if (user_info != NULL) NetApiBufferFree (user_info); return retval; #endif //DBUS_WINCE } dbus_bool_t fill_win_user_info_from_name (wchar_t *wname, DBusUserInfo *info, DBusError *error) { #ifdef DBUS_WINCE return TRUE; //TODO #else dbus_bool_t retval = FALSE; PSID sid; wchar_t *wdomain; DWORD sid_length, wdomain_length; SID_NAME_USE use; sid_length = 0; wdomain_length = 0; if (!LookupAccountNameW (NULL, wname, NULL, &sid_length, NULL, &wdomain_length, &use) && GetLastError () != ERROR_INSUFFICIENT_BUFFER) { _dbus_win_set_error_from_win_error (error, GetLastError ()); return FALSE; } sid = dbus_malloc (sid_length); if (!sid) { _DBUS_SET_OOM (error); return FALSE; } wdomain = dbus_new (wchar_t, wdomain_length); if (!wdomain) { _DBUS_SET_OOM (error); goto out0; } if (!LookupAccountNameW (NULL, wname, sid, &sid_length, wdomain, &wdomain_length, &use)) { _dbus_win_set_error_from_win_error (error, GetLastError ()); goto out1; } if (!IsValidSid (sid)) { dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID"); goto out1; } info->uid = _dbus_win_sid_to_uid_t (sid); if (!fill_win_user_info_name_and_groups (wname, wdomain, info, error)) goto out1; if (!fill_win_user_info_homedir (wname, wdomain, info, error)) goto out1; retval = TRUE; out1: dbus_free (wdomain); out0: dbus_free (sid); return retval; #endif //DBUS_WINCE } dbus_bool_t _dbus_win_sid_to_name_and_domain (dbus_uid_t uid, wchar_t **wname, wchar_t **wdomain, DBusError *error) { #ifdef DBUS_WINCE return TRUE; //TODO #else PSID sid; DWORD wname_length, wdomain_length; SID_NAME_USE use; if (!_dbus_uid_t_to_win_sid (uid, &sid)) { _dbus_win_set_error_from_win_error (error, GetLastError ()); return FALSE; } wname_length = 0; wdomain_length = 0; if (!LookupAccountSidW (NULL, sid, NULL, &wname_length, NULL, &wdomain_length, &use) && GetLastError () != ERROR_INSUFFICIENT_BUFFER) { _dbus_win_set_error_from_win_error (error, GetLastError ()); goto out0; } *wname = dbus_new (wchar_t, wname_length); if (!*wname) { _DBUS_SET_OOM (error); goto out0; } *wdomain = dbus_new (wchar_t, wdomain_length); if (!*wdomain) { _DBUS_SET_OOM (error); goto out1; } if (!LookupAccountSidW (NULL, sid, *wname, &wname_length, *wdomain, &wdomain_length, &use)) { _dbus_win_set_error_from_win_error (error, GetLastError ()); goto out2; } return TRUE; out2: dbus_free (*wdomain); *wdomain = NULL; out1: dbus_free (*wname); *wname = NULL; out0: LocalFree (sid); return FALSE; #endif //DBUS_WINCE } dbus_bool_t fill_win_user_info_from_uid (dbus_uid_t uid, DBusUserInfo *info, DBusError *error) { #ifdef DBUS_WINCE return TRUE; //TODO #else PSID sid; dbus_bool_t retval = FALSE; wchar_t *wname, *wdomain; info->uid = uid; if (!_dbus_win_sid_to_name_and_domain (uid, &wname, &wdomain, error)) { _dbus_verbose("%s after _dbus_win_sid_to_name_and_domain\n",__FUNCTION__); return FALSE; } if (!fill_win_user_info_name_and_groups (wname, wdomain, info, error)) { _dbus_verbose("%s after fill_win_user_info_name_and_groups\n",__FUNCTION__); goto out0; } if (!fill_win_user_info_homedir (wname, wdomain, info, error)) { _dbus_verbose("%s after fill_win_user_info_homedir\n",__FUNCTION__); goto out0; } retval = TRUE; out0: dbus_free (wdomain); dbus_free (wname); return retval; #endif //DBUS_WINCE } #endif void _dbus_win_startup_winsock (void) { /* Straight from MSDN, deuglified */ static dbus_bool_t beenhere = FALSE; WORD wVersionRequested; WSADATA wsaData; int err; if (beenhere) return; wVersionRequested = MAKEWORD (2, 0); err = WSAStartup (wVersionRequested, &wsaData); if (err != 0) { _dbus_assert_not_reached ("Could not initialize WinSock"); _dbus_abort (); } /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL * supports versions greater than 2.0 in addition to 2.0, it will * still return 2.0 in wVersion since that is the version we * requested. */ if (LOBYTE (wsaData.wVersion) != 2 || HIBYTE (wsaData.wVersion) != 0) { _dbus_assert_not_reached ("No usable WinSock found"); _dbus_abort (); } beenhere = TRUE; } /************************************************************************ UTF / string code ************************************************************************/ /** * Measure the message length without terminating nul */ int _dbus_printf_string_upper_bound (const char *format, va_list args) { /* MSVCRT's vsnprintf semantics are a bit different */ /* The C library source in the Platform SDK indicates that this * would work, but alas, it doesn't. At least not on Windows * 2000. Presumably those sources correspond to the C library on * some newer or even future Windows version. * len = _vsnprintf (NULL, _DBUS_INT_MAX, format, args); */ char p[1024]; int len; len = _vsnprintf (p, sizeof(p)-1, format, args); if (len == -1) // try again { char *p; p = malloc (strlen(format)*3); len = _vsnprintf (p, sizeof(p)-1, format, args); free(p); } return len; } /** * Returns the UTF-16 form of a UTF-8 string. The result should be * freed with dbus_free() when no longer needed. * * @param str the UTF-8 string * @param error return location for error code */ wchar_t * _dbus_win_utf8_to_utf16 (const char *str, DBusError *error) { DBusString s; int n; wchar_t *retval; _dbus_string_init_const (&s, str); if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s))) { dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8"); return NULL; } n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0); if (n == 0) { _dbus_win_set_error_from_win_error (error, GetLastError ()); return NULL; } retval = dbus_new (wchar_t, n); if (!retval) { _DBUS_SET_OOM (error); return NULL; } if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n) { dbus_free (retval); dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency"); return NULL; } return retval; } /** * Returns the UTF-8 form of a UTF-16 string. The result should be * freed with dbus_free() when no longer needed. * * @param str the UTF-16 string * @param error return location for error code */ char * _dbus_win_utf16_to_utf8 (const wchar_t *str, DBusError *error) { int n; char *retval; n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL); if (n == 0) { _dbus_win_set_error_from_win_error (error, GetLastError ()); return NULL; } retval = dbus_malloc (n); if (!retval) { _DBUS_SET_OOM (error); return NULL; } if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n) { dbus_free (retval); dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency"); return NULL; } return retval; } /************************************************************************ uid ... <-> win sid functions ************************************************************************/ dbus_bool_t _dbus_win_account_to_sid (const wchar_t *waccount, void **ppsid, DBusError *error) { dbus_bool_t retval = FALSE; DWORD sid_length, wdomain_length; SID_NAME_USE use; wchar_t *wdomain; *ppsid = NULL; sid_length = 0; wdomain_length = 0; if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length, NULL, &wdomain_length, &use) && GetLastError () != ERROR_INSUFFICIENT_BUFFER) { _dbus_win_set_error_from_win_error (error, GetLastError ()); return FALSE; } *ppsid = dbus_malloc (sid_length); if (!*ppsid) { _DBUS_SET_OOM (error); return FALSE; } wdomain = dbus_new (wchar_t, wdomain_length); if (!wdomain) { _DBUS_SET_OOM (error); goto out1; } if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length, wdomain, &wdomain_length, &use)) { _dbus_win_set_error_from_win_error (error, GetLastError ()); goto out2; } if (!IsValidSid ((PSID) *ppsid)) { dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID"); goto out2; } retval = TRUE; out2: dbus_free (wdomain); out1: if (!retval) { dbus_free (*ppsid); *ppsid = NULL; } return retval; } static void _sid_atom_cache_shutdown (void *unused) { DBusHashIter iter; _DBUS_LOCK (sid_atom_cache); _dbus_hash_iter_init (sid_atom_cache, &iter); while (_dbus_hash_iter_next (&iter)) { ATOM atom; atom = (ATOM) _dbus_hash_iter_get_value (&iter); GlobalDeleteAtom(atom); _dbus_hash_iter_remove_entry(&iter); } _DBUS_UNLOCK (sid_atom_cache); _dbus_hash_table_unref (sid_atom_cache); sid_atom_cache = NULL; } /** * Returns the 2-way associated dbus_uid_t form a SID. * * @param psid pointer to the SID */ dbus_uid_t _dbus_win_sid_to_uid_t (PSID psid) { dbus_uid_t uid; dbus_uid_t olduid; char *string; ATOM atom; if (!IsValidSid (psid)) { _dbus_verbose("%s invalid sid\n",__FUNCTION__); return DBUS_UID_UNSET; } if (!ConvertSidToStringSidA (psid, &string)) { _dbus_verbose("%s invalid sid\n",__FUNCTION__); return DBUS_UID_UNSET; } atom = GlobalAddAtom(string); if (atom == 0) { _dbus_verbose("%s GlobalAddAtom failed\n",__FUNCTION__); LocalFree (string); return DBUS_UID_UNSET; } _DBUS_LOCK (sid_atom_cache); if (sid_atom_cache == NULL) { sid_atom_cache = _dbus_hash_table_new (DBUS_HASH_ULONG, NULL, NULL); _dbus_register_shutdown_func (_sid_atom_cache_shutdown, NULL); } uid = atom; olduid = (dbus_uid_t) _dbus_hash_table_lookup_ulong (sid_atom_cache, uid); if (olduid) { _dbus_verbose("%s sid with id %i found in cache\n",__FUNCTION__, olduid); uid = olduid; } else { _dbus_hash_table_insert_ulong (sid_atom_cache, uid, (void*) uid); _dbus_verbose("%s sid %s added with uid %i to cache\n",__FUNCTION__, string, uid); } _DBUS_UNLOCK (sid_atom_cache); return uid; } dbus_bool_t _dbus_uid_t_to_win_sid (dbus_uid_t uid, PSID *ppsid) { void* atom; char string[255]; atom = _dbus_hash_table_lookup_ulong (sid_atom_cache, uid); if (atom == NULL) { _dbus_verbose("%s uid %i not found in cache\n",__FUNCTION__,uid); return FALSE; } memset( string, '.', sizeof(string) ); if (!GlobalGetAtomNameA( (ATOM) atom, string, 255 )) { _dbus_verbose("%s uid %i not found in cache\n",__FUNCTION__, uid); return FALSE; } if (!ConvertStringSidToSidA(string, ppsid)) { _dbus_verbose("%s could not convert %s into sid \n",__FUNCTION__, string); return FALSE; } _dbus_verbose("%s converted %s into sid \n",__FUNCTION__, string); return TRUE; } /** @} end of sysdeps-win */ /** Gets our UID * @returns process UID */ dbus_uid_t _dbus_getuid(void) { dbus_uid_t retval = DBUS_UID_UNSET; HANDLE process_token = NULL; TOKEN_USER *token_user = NULL; DWORD n; if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token)) _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ()); else if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n) && GetLastError () != ERROR_INSUFFICIENT_BUFFER) || (token_user = alloca (n)) == NULL || !GetTokenInformation (process_token, TokenUser, token_user, n, &n)) _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ()); else retval = _dbus_win_sid_to_uid_t (token_user->User.Sid); if (process_token != NULL) CloseHandle (process_token); _dbus_verbose("_dbus_getuid() returns %d\n",retval); return retval; } /** * The only reason this is separate from _dbus_getpid() is to allow it * on Windows for logging but not for other purposes. * * @returns process ID to put in log messages */ unsigned long _dbus_pid_for_log (void) { return _dbus_getpid (); } #ifdef DBUS_BUILD_TESTS /** Gets our GID * @returns process GID */ dbus_gid_t _dbus_getgid (void) { dbus_gid_t retval = DBUS_GID_UNSET; HANDLE process_token = NULL; TOKEN_PRIMARY_GROUP *token_primary_group = NULL; DWORD n; if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token)) _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ()); else if ((!GetTokenInformation (process_token, TokenPrimaryGroup, NULL, 0, &n) && GetLastError () != ERROR_INSUFFICIENT_BUFFER) || (token_primary_group = alloca (n)) == NULL || !GetTokenInformation (process_token, TokenPrimaryGroup, token_primary_group, n, &n)) _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ()); else retval = _dbus_win_sid_to_uid_t (token_primary_group->PrimaryGroup); if (process_token != NULL) CloseHandle (process_token); return retval; } #if 0 dbus_bool_t _dbus_domain_test (const char *test_data_dir) { if (!_dbus_test_oom_handling ("spawn_nonexistent", check_spawn_nonexistent, NULL)) return FALSE; } #endif #endif //DBUS_BUILD_TESTS /************************************************************************ pipes ************************************************************************/ /** * Creates a full-duplex pipe (as in socketpair()). * Sets both ends of the pipe nonblocking. * * @todo libdbus only uses this for the debug-pipe server, so in * principle it could be in dbus-sysdeps-util.c, except that * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the * debug-pipe server is used. * * @param fd1 return location for one end * @param fd2 return location for the other end * @param blocking #TRUE if pipe should be blocking * @param error error return * @returns #FALSE on failure (if error is set) */ dbus_bool_t _dbus_full_duplex_pipe (int *fd1, int *fd2, dbus_bool_t blocking, DBusError *error) { SOCKET temp, socket1 = -1, socket2 = -1; struct sockaddr_in saddr; int len; u_long arg; fd_set read_set, write_set; struct timeval tv; DBusSocket sock; _dbus_win_startup_winsock (); temp = socket (AF_INET, SOCK_STREAM, 0); if (temp == INVALID_SOCKET) { DBUS_SOCKET_SET_ERRNO (); goto out0; } arg = 1; if (ioctlsocket (temp, FIONBIO, &arg) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out0; } _DBUS_ZERO (saddr); saddr.sin_family = AF_INET; saddr.sin_port = 0; saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr))) { DBUS_SOCKET_SET_ERRNO (); goto out0; } if (listen (temp, 1) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out0; } len = sizeof (saddr); if (getsockname (temp, (struct sockaddr *)&saddr, &len)) { DBUS_SOCKET_SET_ERRNO (); goto out0; } socket1 = socket (AF_INET, SOCK_STREAM, 0); if (socket1 == INVALID_SOCKET) { DBUS_SOCKET_SET_ERRNO (); goto out0; } arg = 1; if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out1; } if (connect (socket1, (struct sockaddr *)&saddr, len) != SOCKET_ERROR || WSAGetLastError () != WSAEWOULDBLOCK) { DBUS_SOCKET_SET_ERRNO (); goto out1; } FD_ZERO (&read_set); FD_SET (temp, &read_set); tv.tv_sec = 0; tv.tv_usec = 0; if (select (0, &read_set, NULL, NULL, NULL) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out1; } _dbus_assert (FD_ISSET (temp, &read_set)); socket2 = accept (temp, (struct sockaddr *) &saddr, &len); if (socket2 == INVALID_SOCKET) { DBUS_SOCKET_SET_ERRNO (); goto out1; } FD_ZERO (&write_set); FD_SET (socket1, &write_set); tv.tv_sec = 0; tv.tv_usec = 0; if (select (0, NULL, &write_set, NULL, NULL) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out2; } _dbus_assert (FD_ISSET (socket1, &write_set)); if (blocking) { arg = 0; if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out2; } arg = 0; if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out2; } } else { arg = 1; if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR) { DBUS_SOCKET_SET_ERRNO (); goto out2; } } sock.fd = socket1; *fd1 = _dbus_socket_to_handle (&sock); sock.fd = socket2; *fd2 = _dbus_socket_to_handle (&sock); _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n", *fd1, socket1, *fd2, socket2); closesocket (temp); return TRUE; out2: closesocket (socket2); out1: closesocket (socket1); out0: closesocket (temp); dbus_set_error (error, _dbus_error_from_errno (errno), "Could not setup socket pair: %s", _dbus_strerror (errno)); return FALSE; } /** * Wrapper for poll(). * * @param fds the file descriptors to poll * @param n_fds number of descriptors in the array * @param timeout_milliseconds timeout or -1 for infinite * @returns numbers of fds with revents, or <0 on error */ #define USE_CHRIS_IMPL 0 #if USE_CHRIS_IMPL int _dbus_poll (DBusPollFD *fds, int n_fds, int timeout_milliseconds) { #define DBUS_POLL_CHAR_BUFFER_SIZE 2000 char msg[DBUS_POLL_CHAR_BUFFER_SIZE]; char *msgp; int ret = 0; int i; struct timeval tv; int ready; #define DBUS_STACK_WSAEVENTS 256 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS]; WSAEVENT *pEvents = NULL; if (n_fds > DBUS_STACK_WSAEVENTS) pEvents = calloc(sizeof(WSAEVENT), n_fds); else pEvents = eventsOnStack; _dbus_lock_sockets(); #ifdef DBUS_ENABLE_VERBOSE_MODE msgp = msg; msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds); for (i = 0; i < n_fds; i++) { static dbus_bool_t warned = FALSE; DBusSocket *s; DBusPollFD *fdp = &fds[i]; _dbus_handle_to_socket_unlocked(fdp->fd, &s); if (s->is_used == 0) { _dbus_warn ("no valid socket"); warned = TRUE; } if (fdp->events & _DBUS_POLLIN) msgp += sprintf (msgp, "R:%d ", s->fd); if (fdp->events & _DBUS_POLLOUT) msgp += sprintf (msgp, "W:%d ", s->fd); msgp += sprintf (msgp, "E:%d\n\t", s->fd); // FIXME: more robust code for long msg // create on heap when msg[] becomes too small if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE) { _dbus_assert_not_reached ("buffer overflow in _dbus_poll"); } } msgp += sprintf (msgp, "\n"); _dbus_verbose ("%s",msg); #endif for (i = 0; i < n_fds; i++) { DBusSocket *s; DBusPollFD *fdp = &fds[i]; WSAEVENT ev; long lNetworkEvents = FD_OOB; _dbus_handle_to_socket_unlocked(fdp->fd, &s); if (s->is_used == 0) continue; ev = WSACreateEvent(); if (fdp->events & _DBUS_POLLIN) lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE; if (fdp->events & _DBUS_POLLOUT) lNetworkEvents |= FD_WRITE | FD_CONNECT; WSAEventSelect(s->fd, ev, lNetworkEvents); pEvents[i] = ev; } _dbus_unlock_sockets(); ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE); if (DBUS_SOCKET_API_RETURNS_ERROR (ready)) { DBUS_SOCKET_SET_ERRNO (); if (errno != EWOULDBLOCK) _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror (errno)); ret = -1; } else if (ready == WSA_WAIT_TIMEOUT) { _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n"); ret = 0; } else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds)) { msgp = msg; msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready); _dbus_lock_sockets(); for (i = 0; i < n_fds; i++) { DBusSocket *s; DBusPollFD *fdp = &fds[i]; WSANETWORKEVENTS ne; _dbus_handle_to_socket_unlocked(fdp->fd, &s); fdp->revents = 0; WSAEnumNetworkEvents(s->fd, pEvents[i], &ne); if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE)) fdp->revents |= _DBUS_POLLIN; if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT)) fdp->revents |= _DBUS_POLLOUT; if (ne.lNetworkEvents & (FD_OOB)) fdp->revents |= _DBUS_POLLERR; if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE)) msgp += sprintf (msgp, "R:%d ", s->fd); if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT)) msgp += sprintf (msgp, "W:%d ", s->fd); if (ne.lNetworkEvents & (FD_OOB)) msgp += sprintf (msgp, "E:%d ", s->fd); msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents); if(ne.lNetworkEvents) ret++; WSAEventSelect(s->fd, pEvents[i], 0); } _dbus_unlock_sockets(); msgp += sprintf (msgp, "\n"); _dbus_verbose ("%s",msg); } else { _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!"); ret = -1; } for(i = 0; i < n_fds; i++) { WSACloseEvent(pEvents[i]); } if (n_fds > DBUS_STACK_WSAEVENTS) free(pEvents); return ret; } #else // USE_CHRIS_IMPL int _dbus_poll (DBusPollFD *fds, int n_fds, int timeout_milliseconds) { #define DBUS_POLL_CHAR_BUFFER_SIZE 2000 char msg[DBUS_POLL_CHAR_BUFFER_SIZE]; char *msgp; fd_set read_set, write_set, err_set; int max_fd = 0; int i; struct timeval tv; int ready; FD_ZERO (&read_set); FD_ZERO (&write_set); FD_ZERO (&err_set); _dbus_lock_sockets(); #ifdef DBUS_ENABLE_VERBOSE_MODE msgp = msg; msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds); for (i = 0; i < n_fds; i++) { static dbus_bool_t warned = FALSE; DBusSocket *s; DBusPollFD *fdp = &fds[i]; _dbus_handle_to_socket_unlocked(fdp->fd, &s); if (s->is_used == 0) { _dbus_warn ("no valid socket"); warned = TRUE; } if (fdp->events & _DBUS_POLLIN) msgp += sprintf (msgp, "R:%d ", s->fd); if (fdp->events & _DBUS_POLLOUT) msgp += sprintf (msgp, "W:%d ", s->fd); msgp += sprintf (msgp, "E:%d\n\t", s->fd); // FIXME: more robust code for long msg // create on heap when msg[] becomes too small if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE) { _dbus_assert_not_reached ("buffer overflow in _dbus_poll"); } } msgp += sprintf (msgp, "\n"); _dbus_verbose ("%s",msg); #endif for (i = 0; i < n_fds; i++) { DBusSocket *s; DBusPollFD *fdp = &fds[i]; _dbus_handle_to_socket_unlocked(fdp->fd, &s); if (s->is_used != 1) continue; if (fdp->events & _DBUS_POLLIN) FD_SET (s->fd, &read_set); if (fdp->events & _DBUS_POLLOUT) FD_SET (s->fd, &write_set); FD_SET (s->fd, &err_set); max_fd = MAX (max_fd, s->fd); } _dbus_unlock_sockets(); tv.tv_sec = timeout_milliseconds / 1000; tv.tv_usec = (timeout_milliseconds % 1000) * 1000; ready = select (max_fd + 1, &read_set, &write_set, &err_set, timeout_milliseconds < 0 ? NULL : &tv); if (DBUS_SOCKET_API_RETURNS_ERROR (ready)) { DBUS_SOCKET_SET_ERRNO (); if (errno != EWOULDBLOCK) _dbus_verbose ("select: failed: %s\n", _dbus_strerror (errno)); } else if (ready == 0) _dbus_verbose ("select: = 0\n"); else if (ready > 0) { #ifdef DBUS_ENABLE_VERBOSE_MODE msgp = msg; msgp += sprintf (msgp, "select: = %d:\n\t", ready); _dbus_lock_sockets(); for (i = 0; i < n_fds; i++) { DBusSocket *s; DBusPollFD *fdp = &fds[i]; _dbus_handle_to_socket_unlocked(fdp->fd, &s); if (FD_ISSET (s->fd, &read_set)) msgp += sprintf (msgp, "R:%d ", s->fd); if (FD_ISSET (s->fd, &write_set)) msgp += sprintf (msgp, "W:%d ", s->fd); if (FD_ISSET (s->fd, &err_set)) msgp += sprintf (msgp, "E:%d\n\t", s->fd); } msgp += sprintf (msgp, "\n"); _dbus_verbose ("%s",msg); #endif for (i = 0; i < n_fds; i++) { DBusSocket *s; DBusPollFD *fdp = &fds[i]; _dbus_handle_to_socket_unlocked(fdp->fd, &s); fdp->revents = 0; if (FD_ISSET (s->fd, &read_set)) fdp->revents |= _DBUS_POLLIN; if (FD_ISSET (s->fd, &write_set)) fdp->revents |= _DBUS_POLLOUT; if (FD_ISSET (s->fd, &err_set)) fdp->revents |= _DBUS_POLLERR; } _dbus_unlock_sockets(); } return ready; } #endif // USE_CHRIS_IMPL /************************************************************************ error handling ************************************************************************/ /** * Assigns an error name and message corresponding to a Win32 error * code to a DBusError. Does nothing if error is #NULL. * * @param error the error. * @param code the Win32 error code */ void _dbus_win_set_error_from_win_error (DBusError *error, int code) { char *msg; /* As we want the English message, use the A API */ FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM, NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US), (LPTSTR) &msg, 0, NULL); if (msg) { char *msg_copy; msg_copy = dbus_malloc (strlen (msg)); strcpy (msg_copy, msg); LocalFree (msg); dbus_set_error (error, "win32.error", "%s", msg_copy); } else dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code); } void _dbus_win_warn_win_error (const char *message, int code) { DBusError error; dbus_error_init (&error); _dbus_win_set_error_from_win_error (&error, code); _dbus_warn ("%s: %s\n", message, error.message); dbus_error_free (&error); } /** * A wrapper around strerror() because some platforms * may be lame and not have strerror(). * * @param error_number errno. * @returns error description. */ const char* _dbus_strerror (int error_number) { #ifdef DBUS_WINCE // TODO return "unknown"; #else const char *msg; switch (error_number) { case WSAEINTR: return "Interrupted function call"; case WSAEACCES: return "Permission denied"; case WSAEFAULT: return "Bad address"; case WSAEINVAL: return "Invalid argument"; case WSAEMFILE: return "Too many open files"; case WSAEWOULDBLOCK: return "Resource temporarily unavailable"; case WSAEINPROGRESS: return "Operation now in progress"; case WSAEALREADY: return "Operation already in progress"; case WSAENOTSOCK: return "Socket operation on nonsocket"; case WSAEDESTADDRREQ: return "Destination address required"; case WSAEMSGSIZE: return "Message too long"; case WSAEPROTOTYPE: return "Protocol wrong type for socket"; case WSAENOPROTOOPT: return "Bad protocol option"; case WSAEPROTONOSUPPORT: return "Protocol not supported"; case WSAESOCKTNOSUPPORT: return "Socket type not supported"; case WSAEOPNOTSUPP: return "Operation not supported"; case WSAEPFNOSUPPORT: return "Protocol family not supported"; case WSAEAFNOSUPPORT: return "Address family not supported by protocol family"; case WSAEADDRINUSE: return "Address already in use"; case WSAEADDRNOTAVAIL: return "Cannot assign requested address"; case WSAENETDOWN: return "Network is down"; case WSAENETUNREACH: return "Network is unreachable"; case WSAENETRESET: return "Network dropped connection on reset"; case WSAECONNABORTED: return "Software caused connection abort"; case WSAECONNRESET: return "Connection reset by peer"; case WSAENOBUFS: return "No buffer space available"; case WSAEISCONN: return "Socket is already connected"; case WSAENOTCONN: return "Socket is not connected"; case WSAESHUTDOWN: return "Cannot send after socket shutdown"; case WSAETIMEDOUT: return "Connection timed out"; case WSAECONNREFUSED: return "Connection refused"; case WSAEHOSTDOWN: return "Host is down"; case WSAEHOSTUNREACH: return "No route to host"; case WSAEPROCLIM: return "Too many processes"; case WSAEDISCON: return "Graceful shutdown in progress"; case WSATYPE_NOT_FOUND: return "Class type not found"; case WSAHOST_NOT_FOUND: return "Host not found"; case WSATRY_AGAIN: return "Nonauthoritative host not found"; case WSANO_RECOVERY: return "This is a nonrecoverable error"; case WSANO_DATA: return "Valid name, no data record of requested type"; case WSA_INVALID_HANDLE: return "Specified event object handle is invalid"; case WSA_INVALID_PARAMETER: return "One or more parameters are invalid"; case WSA_IO_INCOMPLETE: return "Overlapped I/O event object not in signaled state"; case WSA_IO_PENDING: return "Overlapped operations will complete later"; case WSA_NOT_ENOUGH_MEMORY: return "Insufficient memory available"; case WSA_OPERATION_ABORTED: return "Overlapped operation aborted"; #ifdef WSAINVALIDPROCTABLE case WSAINVALIDPROCTABLE: return "Invalid procedure table from service provider"; #endif #ifdef WSAINVALIDPROVIDER case WSAINVALIDPROVIDER: return "Invalid service provider version number"; #endif #ifdef WSAPROVIDERFAILEDINIT case WSAPROVIDERFAILEDINIT: return "Unable to initialize a service provider"; #endif case WSASYSCALLFAILURE: return "System call failure"; } msg = strerror (error_number); if (msg == NULL) msg = "unknown"; return msg; #endif //DBUS_WINCE } /* lan manager error codes */ const char* _dbus_lm_strerror(int error_number) { #ifdef DBUS_WINCE // TODO return "unknown"; #else const char *msg; switch (error_number) { case NERR_NetNotStarted: return "The workstation driver is not installed."; case NERR_UnknownServer: return "The server could not be located."; case NERR_ShareMem: return "An internal error occurred. The network cannot access a shared memory segment."; case NERR_NoNetworkResource: return "A network resource shortage occurred."; case NERR_RemoteOnly: return "This operation is not supported on workstations."; case NERR_DevNotRedirected: return "The device is not connected."; case NERR_ServerNotStarted: return "The Server service is not started."; case NERR_ItemNotFound: return "The queue is empty."; case NERR_UnknownDevDir: return "The device or directory does not exist."; case NERR_RedirectedPath: return "The operation is invalid on a redirected resource."; case NERR_DuplicateShare: return "The name has already been shared."; case NERR_NoRoom: return "The server is currently out of the requested resource."; case NERR_TooManyItems: return "Requested addition of items exceeds the maximum allowed."; case NERR_InvalidMaxUsers: return "The Peer service supports only two simultaneous users."; case NERR_BufTooSmall: return "The API return buffer is too small."; case NERR_RemoteErr: return "A remote API error occurred."; case NERR_LanmanIniError: return "An error occurred when opening or reading the configuration file."; case NERR_NetworkError: return "A general network error occurred."; case NERR_WkstaInconsistentState: return "The Workstation service is in an inconsistent state. Restart the computer before restarting the Workstation service."; case NERR_WkstaNotStarted: return "The Workstation service has not been started."; case NERR_BrowserNotStarted: return "The requested information is not available."; case NERR_InternalError: return "An internal error occurred."; case NERR_BadTransactConfig: return "The server is not configured for transactions."; case NERR_InvalidAPI: return "The requested API is not supported on the remote server."; case NERR_BadEventName: return "The event name is invalid."; case NERR_DupNameReboot: return "The computer name already exists on the network. Change it and restart the computer."; case NERR_CfgCompNotFound: return "The specified component could not be found in the configuration information."; case NERR_CfgParamNotFound: return "The specified parameter could not be found in the configuration information."; case NERR_LineTooLong: return "A line in the configuration file is too long."; case NERR_QNotFound: return "The printer does not exist."; case NERR_JobNotFound: return "The print job does not exist."; case NERR_DestNotFound: return "The printer destination cannot be found."; case NERR_DestExists: return "The printer destination already exists."; case NERR_QExists: return "The printer queue already exists."; case NERR_QNoRoom: return "No more printers can be added."; case NERR_JobNoRoom: return "No more print jobs can be added."; case NERR_DestNoRoom: return "No more printer destinations can be added."; case NERR_DestIdle: return "This printer destination is idle and cannot accept control operations."; case NERR_DestInvalidOp: return "This printer destination request contains an invalid control function."; case NERR_ProcNoRespond: return "The print processor is not responding."; case NERR_SpoolerNotLoaded: return "The spooler is not running."; case NERR_DestInvalidState: return "This operation cannot be performed on the print destination in its current state."; case NERR_QInvalidState: return "This operation cannot be performed on the printer queue in its current state."; case NERR_JobInvalidState: return "This operation cannot be performed on the print job in its current state."; case NERR_SpoolNoMemory: return "A spooler memory allocation failure occurred."; case NERR_DriverNotFound: return "The device driver does not exist."; case NERR_DataTypeInvalid: return "The data type is not supported by the print processor."; case NERR_ProcNotFound: return "The print processor is not installed."; case NERR_ServiceTableLocked: return "The service database is locked."; case NERR_ServiceTableFull: return "The service table is full."; case NERR_ServiceInstalled: return "The requested service has already been started."; case NERR_ServiceEntryLocked: return "The service does not respond to control actions."; case NERR_ServiceNotInstalled: return "The service has not been started."; case NERR_BadServiceName: return "The service name is invalid."; case NERR_ServiceCtlTimeout: return "The service is not responding to the control function."; case NERR_ServiceCtlBusy: return "The service control is busy."; case NERR_BadServiceProgName: return "The configuration file contains an invalid service program name."; case NERR_ServiceNotCtrl: return "The service could not be controlled in its present state."; case NERR_ServiceKillProc: return "The service ended abnormally."; case NERR_ServiceCtlNotValid: return "The requested pause or stop is not valid for this service."; case NERR_NotInDispatchTbl: return "The service control dispatcher could not find the service name in the dispatch table."; case NERR_BadControlRecv: return "The service control dispatcher pipe read failed."; case NERR_ServiceNotStarting: return "A thread for the new service could not be created."; case NERR_AlreadyLoggedOn: return "This workstation is already logged on to the local-area network."; case NERR_NotLoggedOn: return "The workstation is not logged on to the local-area network."; case NERR_BadUsername: return "The user name or group name parameter is invalid."; case NERR_BadPassword: return "The password parameter is invalid."; case NERR_UnableToAddName_W: return "@W The logon processor did not add the message alias."; case NERR_UnableToAddName_F: return "The logon processor did not add the message alias."; case NERR_UnableToDelName_W: return "@W The logoff processor did not delete the message alias."; case NERR_UnableToDelName_F: return "The logoff processor did not delete the message alias."; case NERR_LogonsPaused: return "Network logons are paused."; case NERR_LogonServerConflict: return "A centralized logon-server conflict occurred."; case NERR_LogonNoUserPath: return "The server is configured without a valid user path."; case NERR_LogonScriptError: return "An error occurred while loading or running the logon script."; case NERR_StandaloneLogon: return "The logon server was not specified. Your computer will be logged on as STANDALONE."; case NERR_LogonServerNotFound: return "The logon server could not be found."; case NERR_LogonDomainExists: return "There is already a logon domain for this computer."; case NERR_NonValidatedLogon: return "The logon server could not validate the logon."; case NERR_ACFNotFound: return "The security database could not be found."; case NERR_GroupNotFound: return "The group name could not be found."; case NERR_UserNotFound: return "The user name could not be found."; case NERR_ResourceNotFound: return "The resource name could not be found."; case NERR_GroupExists: return "The group already exists."; case NERR_UserExists: return "The user account already exists."; case NERR_ResourceExists: return "The resource permission list already exists."; case NERR_NotPrimary: return "This operation is only allowed on the primary domain controller of the domain."; case NERR_ACFNotLoaded: return "The security database has not been started."; case NERR_ACFNoRoom: return "There are too many names in the user accounts database."; case NERR_ACFFileIOFail: return "A disk I/O failure occurred."; case NERR_ACFTooManyLists: return "The limit of 64 entries per resource was exceeded."; case NERR_UserLogon: return "Deleting a user with a session is not allowed."; case NERR_ACFNoParent: return "The parent directory could not be located."; case NERR_CanNotGrowSegment: return "Unable to add to the security database session cache segment."; case NERR_SpeGroupOp: return "This operation is not allowed on this special group."; case NERR_NotInCache: return "This user is not cached in user accounts database session cache."; case NERR_UserInGroup: return "The user already belongs to this group."; case NERR_UserNotInGroup: return "The user does not belong to this group."; case NERR_AccountUndefined: return "This user account is undefined."; case NERR_AccountExpired: return "This user account has expired."; case NERR_InvalidWorkstation: return "The user is not allowed to log on from this workstation."; case NERR_InvalidLogonHours: return "The user is not allowed to log on at this time."; case NERR_PasswordExpired: return "The password of this user has expired."; case NERR_PasswordCantChange: return "The password of this user cannot change."; case NERR_PasswordHistConflict: return "This password cannot be used now."; case NERR_PasswordTooShort: return "The password does not meet the password policy requirements. Check the minimum password length, password complexity and password history requirements."; case NERR_PasswordTooRecent: return "The password of this user is too recent to change."; case NERR_InvalidDatabase: return "The security database is corrupted."; case NERR_DatabaseUpToDate: return "No updates are necessary to this replicant network/local security database."; case NERR_SyncRequired: return "This replicant database is outdated; synchronization is required."; case NERR_UseNotFound: return "The network connection could not be found."; case NERR_BadAsgType: return "This asg_type is invalid."; case NERR_DeviceIsShared: return "This device is currently being shared."; case NERR_NoComputerName: return "The computer name could not be added as a message alias. The name may already exist on the network."; case NERR_MsgAlreadyStarted: return "The Messenger service is already started."; case NERR_MsgInitFailed: return "The Messenger service failed to start."; case NERR_NameNotFound: return "The message alias could not be found on the network."; case NERR_AlreadyForwarded: return "This message alias has already been forwarded."; case NERR_AddForwarded: return "This message alias has been added but is still forwarded."; case NERR_AlreadyExists: return "This message alias already exists locally."; case NERR_TooManyNames: return "The maximum number of added message aliases has been exceeded."; case NERR_DelComputerName: return "The computer name could not be deleted."; case NERR_LocalForward: return "Messages cannot be forwarded back to the same workstation."; case NERR_GrpMsgProcessor: return "An error occurred in the domain message processor."; case NERR_PausedRemote: return "The message was sent, but the recipient has paused the Messenger service."; case NERR_BadReceive: return "The message was sent but not received."; case NERR_NameInUse: return "The message alias is currently in use. Try again later."; case NERR_MsgNotStarted: return "The Messenger service has not been started."; case NERR_NotLocalName: return "The name is not on the local computer."; case NERR_NoForwardName: return "The forwarded message alias could not be found on the network."; case NERR_RemoteFull: return "The message alias table on the remote station is full."; case NERR_NameNotForwarded: return "Messages for this alias are not currently being forwarded."; case NERR_TruncatedBroadcast: return "The broadcast message was truncated."; case NERR_InvalidDevice: return "This is an invalid device name."; case NERR_WriteFault: return "A write fault occurred."; case NERR_DuplicateName: return "A duplicate message alias exists on the network."; case NERR_DeleteLater: return "@W This message alias will be deleted later."; case NERR_IncompleteDel: return "The message alias was not successfully deleted from all networks."; case NERR_MultipleNets: return "This operation is not supported on computers with multiple networks."; case NERR_NetNameNotFound: return "This shared resource does not exist."; case NERR_DeviceNotShared: return "This device is not shared."; case NERR_ClientNameNotFound: return "A session does not exist with that computer name."; case NERR_FileIdNotFound: return "There is not an open file with that identification number."; case NERR_ExecFailure: return "A failure occurred when executing a remote administration command."; case NERR_TmpFile: return "A failure occurred when opening a remote temporary file."; case NERR_TooMuchData: return "The data returned from a remote administration command has been truncated to 64K."; case NERR_DeviceShareConflict: return "This device cannot be shared as both a spooled and a non-spooled resource."; case NERR_BrowserTableIncomplete: return "The information in the list of servers may be incorrect."; case NERR_NotLocalDomain: return "The computer is not active in this domain."; #ifdef NERR_IsDfsShare case NERR_IsDfsShare: return "The share must be removed from the Distributed File System before it can be deleted."; #endif case NERR_DevInvalidOpCode: return "The operation is invalid for this device."; case NERR_DevNotFound: return "This device cannot be shared."; case NERR_DevNotOpen: return "This device was not open."; case NERR_BadQueueDevString: return "This device name list is invalid."; case NERR_BadQueuePriority: return "The queue priority is invalid."; case NERR_NoCommDevs: return "There are no shared communication devices."; case NERR_QueueNotFound: return "The queue you specified does not exist."; case NERR_BadDevString: return "This list of devices is invalid."; case NERR_BadDev: return "The requested device is invalid."; case NERR_InUseBySpooler: return "This device is already in use by the spooler."; case NERR_CommDevInUse: return "This device is already in use as a communication device."; case NERR_InvalidComputer: return "This computer name is invalid."; case NERR_MaxLenExceeded: return "The string and prefix specified are too long."; case NERR_BadComponent: return "This path component is invalid."; case NERR_CantType: return "Could not determine the type of input."; case NERR_TooManyEntries: return "The buffer for types is not big enough."; case NERR_ProfileFileTooBig: return "Profile files cannot exceed 64K."; case NERR_ProfileOffset: return "The start offset is out of range."; case NERR_ProfileCleanup: return "The system cannot delete current connections to network resources."; case NERR_ProfileUnknownCmd: return "The system was unable to parse the command line in this file."; case NERR_ProfileLoadErr: return "An error occurred while loading the profile file."; case NERR_ProfileSaveErr: return "@W Errors occurred while saving the profile file. The profile was partially saved."; case NERR_LogOverflow: return "Log file %1 is full."; case NERR_LogFileChanged: return "This log file has changed between reads."; case NERR_LogFileCorrupt: return "Log file %1 is corrupt."; case NERR_SourceIsDir: return "The source path cannot be a directory."; case NERR_BadSource: return "The source path is illegal."; case NERR_BadDest: return "The destination path is illegal."; case NERR_DifferentServers: return "The source and destination paths are on different servers."; case NERR_RunSrvPaused: return "The Run server you requested is paused."; case NERR_ErrCommRunSrv: return "An error occurred when communicating with a Run server."; case NERR_ErrorExecingGhost: return "An error occurred when starting a background process."; case NERR_ShareNotFound: return "The shared resource you are connected to could not be found."; case NERR_InvalidLana: return "The LAN adapter number is invalid."; case NERR_OpenFiles: return "There are open files on the connection."; case NERR_ActiveConns: return "Active connections still exist."; case NERR_BadPasswordCore: return "This share name or password is invalid."; case NERR_DevInUse: return "The device is being accessed by an active process."; case NERR_LocalDrive: return "The drive letter is in use locally."; case NERR_AlertExists: return "The specified client is already registered for the specified event."; case NERR_TooManyAlerts: return "The alert table is full."; case NERR_NoSuchAlert: return "An invalid or nonexistent alert name was raised."; case NERR_BadRecipient: return "The alert recipient is invalid."; case NERR_AcctLimitExceeded: return "A user's session with this server has been deleted."; case NERR_InvalidLogSeek: return "The log file does not contain the requested record number."; case NERR_BadUasConfig: return "The user accounts database is not configured correctly."; case NERR_InvalidUASOp: return "This operation is not permitted when the Netlogon service is running."; case NERR_LastAdmin: return "This operation is not allowed on the last administrative account."; case NERR_DCNotFound: return "Could not find domain controller for this domain."; case NERR_LogonTrackingError: return "Could not set logon information for this user."; case NERR_NetlogonNotStarted: return "The Netlogon service has not been started."; case NERR_CanNotGrowUASFile: return "Unable to add to the user accounts database."; case NERR_TimeDiffAtDC: return "This server's clock is not synchronized with the primary domain controller's clock."; case NERR_PasswordMismatch: return "A password mismatch has been detected."; case NERR_NoSuchServer: return "The server identification does not specify a valid server."; case NERR_NoSuchSession: return "The session identification does not specify a valid session."; case NERR_NoSuchConnection: return "The connection identification does not specify a valid connection."; case NERR_TooManyServers: return "There is no space for another entry in the table of available servers."; case NERR_TooManySessions: return "The server has reached the maximum number of sessions it supports."; case NERR_TooManyConnections: return "The server has reached the maximum number of connections it supports."; case NERR_TooManyFiles: return "The server cannot open more files because it has reached its maximum number."; case NERR_NoAlternateServers: return "There are no alternate servers registered on this server."; case NERR_TryDownLevel: return "Try down-level (remote admin protocol) version of API instead."; case NERR_UPSDriverNotStarted: return "The UPS driver could not be accessed by the UPS service."; case NERR_UPSInvalidConfig: return "The UPS service is not configured correctly."; case NERR_UPSInvalidCommPort: return "The UPS service could not access the specified Comm Port."; case NERR_UPSSignalAsserted: return "The UPS indicated a line fail or low battery situation. Service not started."; case NERR_UPSShutdownFailed: return "The UPS service failed to perform a system shut down."; case NERR_BadDosRetCode: return "The program below returned an MS-DOS error code:"; case NERR_ProgNeedsExtraMem: return "The program below needs more memory:"; case NERR_BadDosFunction: return "The program below called an unsupported MS-DOS function:"; case NERR_RemoteBootFailed: return "The workstation failed to boot."; case NERR_BadFileCheckSum: return "The file below is corrupt."; case NERR_NoRplBootSystem: return "No loader is specified in the boot-block definition file."; case NERR_RplLoadrNetBiosErr: return "NetBIOS returned an error: The NCB and SMB are dumped above."; case NERR_RplLoadrDiskErr: return "A disk I/O error occurred."; case NERR_ImageParamErr: return "Image parameter substitution failed."; case NERR_TooManyImageParams: return "Too many image parameters cross disk sector boundaries."; case NERR_NonDosFloppyUsed: return "The image was not generated from an MS-DOS diskette formatted with /S."; case NERR_RplBootRestart: return "Remote boot will be restarted later."; case NERR_RplSrvrCallFailed: return "The call to the Remoteboot server failed."; case NERR_CantConnectRplSrvr: return "Cannot connect to the Remoteboot server."; case NERR_CantOpenImageFile: return "Cannot open image file on the Remoteboot server."; case NERR_CallingRplSrvr: return "Connecting to the Remoteboot server..."; case NERR_StartingRplBoot: return "Connecting to the Remoteboot server..."; case NERR_RplBootServiceTerm: return "Remote boot service was stopped; check the error log for the cause of the problem."; case NERR_RplBootStartFailed: return "Remote boot startup failed; check the error log for the cause of the problem."; case NERR_RPL_CONNECTED: return "A second connection to a Remoteboot resource is not allowed."; case NERR_BrowserConfiguredToNotRun: return "The browser service was configured with MaintainServerList=No."; case NERR_RplNoAdaptersStarted: return "Service failed to start since none of the network adapters started with this service."; case NERR_RplBadRegistry: return "Service failed to start due to bad startup information in the registry."; case NERR_RplBadDatabase: return "Service failed to start because its database is absent or corrupt."; case NERR_RplRplfilesShare: return "Service failed to start because RPLFILES share is absent."; case NERR_RplNotRplServer: return "Service failed to start because RPLUSER group is absent."; case NERR_RplCannotEnum: return "Cannot enumerate service records."; case NERR_RplWkstaInfoCorrupted: return "Workstation record information has been corrupted."; case NERR_RplWkstaNotFound: return "Workstation record was not found."; case NERR_RplWkstaNameUnavailable: return "Workstation name is in use by some other workstation."; case NERR_RplProfileInfoCorrupted: return "Profile record information has been corrupted."; case NERR_RplProfileNotFound: return "Profile record was not found."; case NERR_RplProfileNameUnavailable: return "Profile name is in use by some other profile."; case NERR_RplProfileNotEmpty: return "There are workstations using this profile."; case NERR_RplConfigInfoCorrupted: return "Configuration record information has been corrupted."; case NERR_RplConfigNotFound: return "Configuration record was not found."; case NERR_RplAdapterInfoCorrupted: return "Adapter ID record information has been corrupted."; case NERR_RplInternal: return "An internal service error has occurred."; case NERR_RplVendorInfoCorrupted: return "Vendor ID record information has been corrupted."; case NERR_RplBootInfoCorrupted: return "Boot block record information has been corrupted."; case NERR_RplWkstaNeedsUserAcct: return "The user account for this workstation record is missing."; case NERR_RplNeedsRPLUSERAcct: return "The RPLUSER local group could not be found."; case NERR_RplBootNotFound: return "Boot block record was not found."; case NERR_RplIncompatibleProfile: return "Chosen profile is incompatible with this workstation."; case NERR_RplAdapterNameUnavailable: return "Chosen network adapter ID is in use by some other workstation."; case NERR_RplConfigNotEmpty: return "There are profiles using this configuration."; case NERR_RplBootInUse: return "There are workstations, profiles, or configurations using this boot block."; case NERR_RplBackupDatabase: return "Service failed to backup Remoteboot database."; case NERR_RplAdapterNotFound: return "Adapter record was not found."; case NERR_RplVendorNotFound: return "Vendor record was not found."; case NERR_RplVendorNameUnavailable: return "Vendor name is in use by some other vendor record."; case NERR_RplBootNameUnavailable: return "(boot name, vendor ID) is in use by some other boot block record."; case NERR_RplConfigNameUnavailable: return "Configuration name is in use by some other configuration."; case NERR_DfsInternalCorruption: return "The internal database maintained by the Dfs service is corrupt."; case NERR_DfsVolumeDataCorrupt: return "One of the records in the internal Dfs database is corrupt."; case NERR_DfsNoSuchVolume: return "There is no DFS name whose entry path matches the input Entry Path."; case NERR_DfsVolumeAlreadyExists: return "A root or link with the given name already exists."; case NERR_DfsAlreadyShared: return "The server share specified is already shared in the Dfs."; case NERR_DfsNoSuchShare: return "The indicated server share does not support the indicated DFS namespace."; case NERR_DfsNotALeafVolume: return "The operation is not valid on this portion of the namespace."; case NERR_DfsLeafVolume: return "The operation is not valid on this portion of the namespace."; case NERR_DfsVolumeHasMultipleServers: return "The operation is ambiguous because the link has multiple servers."; case NERR_DfsCantCreateJunctionPoint: return "Unable to create a link."; case NERR_DfsServerNotDfsAware: return "The server is not Dfs Aware."; case NERR_DfsBadRenamePath: return "The specified rename target path is invalid."; case NERR_DfsVolumeIsOffline: return "The specified DFS link is offline."; case NERR_DfsNoSuchServer: return "The specified server is not a server for this link."; case NERR_DfsCyclicalName: return "A cycle in the Dfs name was detected."; case NERR_DfsNotSupportedInServerDfs: return "The operation is not supported on a server-based Dfs."; case NERR_DfsDuplicateService: return "This link is already supported by the specified server-share."; case NERR_DfsCantRemoveLastServerShare: return "Can't remove the last server-share supporting this root or link."; case NERR_DfsVolumeIsInterDfs: return "The operation is not supported for an Inter-DFS link."; case NERR_DfsInconsistent: return "The internal state of the Dfs Service has become inconsistent."; case NERR_DfsServerUpgraded: return "The Dfs Service has been installed on the specified server."; case NERR_DfsDataIsIdentical: return "The Dfs data being reconciled is identical."; case NERR_DfsCantRemoveDfsRoot: return "The DFS root cannot be deleted. Uninstall DFS if required."; case NERR_DfsChildOrParentInDfs: return "A child or parent directory of the share is already in a Dfs."; case NERR_DfsInternalError: return "Dfs internal error."; /* the following are not defined in mingw */ #if 0 case NERR_SetupAlreadyJoined: return "This machine is already joined to a domain."; case NERR_SetupNotJoined: return "This machine is not currently joined to a domain."; case NERR_SetupDomainController: return "This machine is a domain controller and cannot be unjoined from a domain."; case NERR_DefaultJoinRequired: return "The destination domain controller does not support creating machine accounts in OUs."; case NERR_InvalidWorkgroupName: return "The specified workgroup name is invalid."; case NERR_NameUsesIncompatibleCodePage: return "The specified computer name is incompatible with the default language used on the domain controller."; case NERR_ComputerAccountNotFound: return "The specified computer account could not be found."; case NERR_PersonalSku: return "This version of Windows cannot be joined to a domain."; case NERR_PasswordMustChange: return "The password must change at the next logon."; case NERR_AccountLockedOut: return "The account is locked out."; case NERR_PasswordTooLong: return "The password is too long."; case NERR_PasswordNotComplexEnough: return "The password does not meet the complexity policy."; case NERR_PasswordFilterError: return "The password does not meet the requirements of the password filter DLLs."; #endif } msg = strerror (error_number); if (msg == NULL) msg = "unknown"; return msg; #endif //DBUS_WINCE } /****************************************************************************** Original CVS version of dbus-sysdeps.c ******************************************************************************/ /* -*- mode: C; c-file-style: "gnu" -*- */ /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation) * * Copyright (C) 2002, 2003 Red Hat, Inc. * Copyright (C) 2003 CodeFactory AB * Copyright (C) 2005 Novell, Inc. * * Licensed under the Academic Free License version 2.1 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ /** * @addtogroup DBusInternalsUtils * @{ */ int _dbus_mkdir (const char *path, mode_t mode) { return _mkdir(path); } /** * Exit the process, returning the given value. * * @param code the exit code */ void _dbus_exit (int code) { _exit (code); } /** * Creates a socket and connects to a socket at the given host * and port. The connection fd is returned, and is set up as * nonblocking. * * @param host the host name to connect to, NULL for loopback * @param port the prot to connect to * @param error return location for error code * @returns connection file descriptor or -1 on error */ int _dbus_connect_tcp_socket (const char *host, dbus_uint32_t port, DBusError *error) { DBusSocket s; int handle; struct sockaddr_in addr; struct hostent *he; struct in_addr *haddr; struct in_addr ina; _DBUS_ASSERT_ERROR_IS_CLEAR (error); _dbus_win_startup_winsock (); s.fd = socket (AF_INET, SOCK_STREAM, 0); if (DBUS_SOCKET_IS_INVALID (s.fd)) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to create socket: %s", _dbus_strerror (errno)); return -1; } if (host == NULL) { host = "localhost"; ina.s_addr = htonl (INADDR_LOOPBACK); haddr = &ina; } he = gethostbyname (host); if (he == NULL) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to lookup hostname: %s", host); DBUS_CLOSE_SOCKET (s.fd); return -1; } haddr = ((struct in_addr *) (he->h_addr_list)[0]); _DBUS_ZERO (addr); memcpy (&addr.sin_addr, haddr, sizeof(struct in_addr)); addr.sin_family = AF_INET; addr.sin_port = htons (port); if (DBUS_SOCKET_API_RETURNS_ERROR (connect (s.fd, (struct sockaddr*) &addr, sizeof (addr)) < 0)) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to connect to socket %s:%d %s", host, port, _dbus_strerror (errno)); DBUS_CLOSE_SOCKET (s.fd); s.fd = -1; return -1; } handle = _dbus_socket_to_handle (&s); if (!_dbus_set_fd_nonblocking (handle, error)) { _dbus_close_socket (handle, NULL); handle = -1; return -1; } return handle; } void _dbus_daemon_init(const char *host, dbus_uint32_t port); /** * Creates a socket and binds it to the given port, * then listens on the socket. The socket is * set to be nonblocking. * In case of port=0 a random free port is used and * returned in the port parameter. * * @param host the interface to listen on, NULL for loopback, empty for any * @param port the port to listen on, if zero a free port will be used * @param error return location for errors * @returns the listening file descriptor or -1 on error */ int _dbus_listen_tcp_socket (const char *host, dbus_uint32_t *port, dbus_bool_t inaddr_any, DBusError *error) { DBusSocket slisten; int handle; struct sockaddr_in addr; struct hostent *he; struct in_addr *haddr; socklen_t len = (socklen_t) sizeof (struct sockaddr); struct in_addr ina; _DBUS_ASSERT_ERROR_IS_CLEAR (error); _dbus_win_startup_winsock (); slisten.fd = socket (AF_INET, SOCK_STREAM, 0); if (DBUS_SOCKET_IS_INVALID (slisten.fd)) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to create socket \"%s:%d\": %s", host, port, _dbus_strerror (errno)); return -1; } if (host == NULL) { host = "localhost"; ina.s_addr = htonl (INADDR_LOOPBACK); haddr = &ina; } else if (!host[0]) { ina.s_addr = htonl (INADDR_ANY); haddr = &ina; } else { he = gethostbyname (host); if (he == NULL) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to lookup hostname: %s", host); DBUS_CLOSE_SOCKET (slisten.fd); return -1; } haddr = ((struct in_addr *) (he->h_addr_list)[0]); } _DBUS_ZERO (addr); memcpy (&addr.sin_addr, haddr, sizeof (struct in_addr)); addr.sin_family = AF_INET; addr.sin_port = htons (*port); if (bind (slisten.fd, (struct sockaddr*) &addr, sizeof (struct sockaddr))) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to bind socket \"%s:%d\": %s", host, *port, _dbus_strerror (errno)); DBUS_CLOSE_SOCKET (slisten.fd); return -1; } if (DBUS_SOCKET_API_RETURNS_ERROR (listen (slisten.fd, 30 /* backlog */))) { DBUS_SOCKET_SET_ERRNO (); dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to listen on socket \"%s:%d\": %s", host, *port, _dbus_strerror (errno)); DBUS_CLOSE_SOCKET (slisten.fd); return -1; } getsockname(slisten.fd, (struct sockaddr*) &addr, &len); *port = (dbus_uint32_t) ntohs(addr.sin_port); _dbus_daemon_init(host, ntohs(addr.sin_port)); handle = _dbus_socket_to_handle (&slisten); if (!_dbus_set_fd_nonblocking (handle, error)) { _dbus_close_socket (handle, NULL); return -1; } return handle; } /** * Accepts a connection on a listening socket. * Handles EINTR for you. * * @param listen_fd the listen file descriptor * @returns the connection fd of the client, or -1 on error */ int _dbus_accept (int listen_handle) { DBusSocket *slisten; DBusSocket sclient; struct sockaddr addr; socklen_t addrlen; _dbus_handle_to_socket(listen_handle, &slisten); addrlen = sizeof (addr); //FIXME: why do we not try it again on Windows? #if !defined(DBUS_WIN) && !defined(DBUS_WINCE) retry: #endif sclient.fd = accept (slisten->fd, &addr, &addrlen); if (DBUS_SOCKET_IS_INVALID (sclient.fd)) { DBUS_SOCKET_SET_ERRNO (); #if !defined(DBUS_WIN) && !defined(DBUS_WINCE) if (errno == EINTR) goto retry; #else return -1; #endif } return _dbus_socket_to_handle (&sclient); } dbus_bool_t _dbus_send_credentials_socket (int handle, DBusError *error) { /* FIXME: for the session bus credentials shouldn't matter (?), but * for the system bus they are presumably essential. A rough outline * of a way to implement the credential transfer would be this: * * client waits to *read* a byte. * * server creates a named pipe with a random name, sends a byte * contining its length, and its name. * * client reads the name, connects to it (using Win32 API). * * server waits for connection to the named pipe, then calls * ImpersonateNamedPipeClient(), notes its now-current credentials, * calls RevertToSelf(), closes its handles to the named pipe, and * is done. (Maybe there is some other way to get the SID of a named * pipe client without having to use impersonation?) * * client closes its handles and is done. * * Ralf: Why not sending credentials over the given this connection ? * Using named pipes makes it impossible to be connected from a unix client. * */ int bytes_written; DBusString buf; _dbus_string_init_const_len (&buf, "\0", 1); again: bytes_written = _dbus_write_socket (handle, &buf, 0, 1 ); if (bytes_written < 0 && errno == EINTR) goto again; if (bytes_written < 0) { dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to write credentials byte: %s", _dbus_strerror (errno)); return FALSE; } else if (bytes_written == 0) { dbus_set_error (error, DBUS_ERROR_IO_ERROR, "wrote zero bytes writing credentials byte"); return FALSE; } else { _dbus_assert (bytes_written == 1); _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n"); return TRUE; } return TRUE; } /** * Gets the credentials of the current process. * * @param credentials credentials to fill in. */ void _dbus_credentials_from_current_process (DBusCredentials *credentials) { credentials->pid = _dbus_getpid (); credentials->uid = _dbus_getuid (); credentials->gid = _dbus_getgid (); } /** * Reads a single byte which must be nul (an error occurs otherwise), * and reads unix credentials if available. Fills in pid/uid/gid with * -1 if no credentials are available. Return value indicates whether * a byte was read, not whether we got valid credentials. On some * systems, such as Linux, reading/writing the byte isn't actually * required, but we do it anyway just to avoid multiple codepaths. * * Fails if no byte is available, so you must select() first. * * The point of the byte is that on some systems we have to * use sendmsg()/recvmsg() to transmit credentials. * * @param client_fd the client file descriptor * @param credentials struct to fill with credentials of client * @param error location to store error code * @returns #TRUE on success */ dbus_bool_t _dbus_read_credentials_socket (int handle, DBusCredentials *credentials, DBusError *error) { int bytes_read; DBusString buf; _dbus_string_init(&buf); bytes_read = _dbus_read_socket(handle, &buf, 1 ); if (bytes_read > 0) { _dbus_verbose("got one zero byte from server"); } _dbus_string_free(&buf); _dbus_credentials_from_current_process (credentials); _dbus_verbose("FIXME: get faked credentials from current process"); return TRUE; } /** * Checks to make sure the given directory is * private to the user * * @param dir the name of the directory * @param error error return * @returns #FALSE on failure **/ dbus_bool_t _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error) { const char *directory; struct stat sb; _DBUS_ASSERT_ERROR_IS_CLEAR (error); return TRUE; } #ifdef ENABLE_DBUSUSERINFO dbus_bool_t fill_user_info (DBusUserInfo *info, dbus_uid_t uid, const DBusString *username, DBusError *error) { const char *username_c; /* exactly one of username/uid provided */ _dbus_assert (username != NULL || uid != DBUS_UID_UNSET); _dbus_assert (username == NULL || uid == DBUS_UID_UNSET); info->uid = DBUS_UID_UNSET; info->primary_gid = DBUS_GID_UNSET; info->group_ids = NULL; info->n_group_ids = 0; info->username = NULL; info->homedir = NULL; if (username != NULL) username_c = _dbus_string_get_const_data (username); else username_c = NULL; if (uid != DBUS_UID_UNSET) { if (!fill_win_user_info_from_uid (uid, info, error)) { _dbus_verbose("%s after fill_win_user_info_from_uid\n",__FUNCTION__); return FALSE; } } else { wchar_t *wname = _dbus_win_utf8_to_utf16 (username_c, error); if (!wname) return FALSE; if (!fill_win_user_info_from_name (wname, info, error)) { dbus_free (wname); return FALSE; } dbus_free (wname); } return TRUE; } /** * Gets user info for the given user ID. * * @param info user info object to initialize * @param uid the user ID * @param error error return * @returns #TRUE on success */ dbus_bool_t _dbus_user_info_fill_uid (DBusUserInfo *info, dbus_uid_t uid, DBusError *error) { return fill_user_info (info, uid, NULL, error); } /** * Gets user info for the given username. * * @param info user info object to initialize * @param username the username * @param error error return * @returns #TRUE on success */ dbus_bool_t _dbus_user_info_fill (DBusUserInfo *info, const DBusString *username, DBusError *error) { return fill_user_info (info, DBUS_UID_UNSET, username, error); } #endif /** * Appends the given filename to the given directory. * * @todo it might be cute to collapse multiple '/' such as "foo//" * concat "//bar" * * @param dir the directory name * @param next_component the filename * @returns #TRUE on success */ dbus_bool_t _dbus_concat_dir_and_file (DBusString *dir, const DBusString *next_component) { dbus_bool_t dir_ends_in_slash; dbus_bool_t file_starts_with_slash; if (_dbus_string_get_length (dir) == 0 || _dbus_string_get_length (next_component) == 0) return TRUE; dir_ends_in_slash = ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) || '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1)); file_starts_with_slash = ('/' == _dbus_string_get_byte (next_component, 0) || '\\' == _dbus_string_get_byte (next_component, 0)); if (dir_ends_in_slash && file_starts_with_slash) { _dbus_string_shorten (dir, 1); } else if (!(dir_ends_in_slash || file_starts_with_slash)) { if (!_dbus_string_append_byte (dir, '\\')) return FALSE; } return _dbus_string_copy (next_component, 0, dir, _dbus_string_get_length (dir)); } /** * Adds the credentials of the current process to the * passed-in credentials object. * * @param credentials credentials to add to * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added */ dbus_bool_t _dbus_credentials_add_from_current_process (DBusCredentials *credentials) { credentials->pid = _dbus_getpid(); credentials->uid = _dbus_getuid(); return TRUE; } /** * Gets a UID from a UID string. * * @param uid_str the UID in string form * @param uid UID to fill in * @returns #TRUE if successfully filled in UID */ dbus_bool_t _dbus_parse_uid (const DBusString *uid_str, dbus_uid_t *uid) { int end; long val; if (_dbus_string_get_length (uid_str) == 0) { _dbus_verbose ("UID string was zero length\n"); return FALSE; } val = -1; end = 0; if (!_dbus_string_parse_int (uid_str, 0, &val, &end)) { _dbus_verbose ("could not parse string as a UID\n"); return FALSE; } if (end != _dbus_string_get_length (uid_str)) { _dbus_verbose ("string contained trailing stuff after UID\n"); return FALSE; } *uid = val; return TRUE; } /** * Parses a desired identity provided from a client in the auth protocol. * On UNIX this means parsing a UID. * * @todo this is broken because it treats OOM and parse error * the same way. Needs a #DBusError. * * @param credentials the credentials to add what we parse to * @param desired_identity the string to parse * @returns #TRUE if we successfully parsed something */ dbus_bool_t _dbus_credentials_parse_and_add_desired (DBusCredentials *credentials, const DBusString *desired_identity) { dbus_uid_t uid; if (!_dbus_parse_uid (desired_identity, &uid)) return FALSE; if (!_dbus_credentials_add_unix_uid (credentials, uid)) return FALSE; return TRUE; } /** * Adds the credentials corresponding to the given username. * * @param credentials credentials to fill in * @param username the username * @returns #TRUE if the username existed and we got some credentials */ dbus_bool_t _dbus_credentials_add_from_user (DBusCredentials *credentials, const DBusString *username) { _dbus_verbose("_dbus_credentials_add_from_user is not implemented"); return FALSE; } /** * Append to the string the identity we would like to have when we * authenticate, on UNIX this is the current process UID and on * Windows something else, probably a Windows SID string. No escaping * is required, that is done in dbus-auth.c. The username here * need not be anything human-readable, it can be the machine-readable * form i.e. a user id. * * @param str the string to append to * @returns #FALSE on no memory */ dbus_bool_t _dbus_append_user_from_current_process (DBusString *str) { return _dbus_string_append_uint (str, _dbus_getuid ()); } /** * Gets the home directory for the given user. * * @param username the username * @param homedir string to append home directory to * @returns #TRUE if user existed and we appended their homedir */ dbus_bool_t _dbus_homedir_from_username (const DBusString *username, DBusString *homedir) { _dbus_string_append (homedir, "/"); return TRUE; } /** * Gets homedir of user owning current process. The returned string * is valid until dbus_shutdown() is called. * * @param homedir place to store pointer to homedir * @returns #FALSE if no memory */ dbus_bool_t _dbus_homedir_from_current_process (const DBusString **homedir) { char *s = getenv("HOMEPATH"); DBusString *dir=0; _dbus_string_init(dir); _dbus_string_append (dir, s); *homedir = dir; return TRUE; } /** * Append to the string the identity we would like to have when we authenticate, * on UNIX this is the current process UID and on Windows something else. * No escaping is required, that is done in dbus-auth.c. * * @param str the string to append to * @returns #FALSE on no memory */ dbus_bool_t _dbus_append_desired_identity (DBusString *str) { /* FIXME: */ return _dbus_string_append_uint (str, _dbus_getuid ()); } /** * Gets our process ID * @returns process ID */ unsigned long _dbus_getpid (void) { return GetCurrentProcessId (); } /** nanoseconds in a second */ #define NANOSECONDS_PER_SECOND 1000000000 /** microseconds in a second */ #define MICROSECONDS_PER_SECOND 1000000 /** milliseconds in a second */ #define MILLISECONDS_PER_SECOND 1000 /** nanoseconds in a millisecond */ #define NANOSECONDS_PER_MILLISECOND 1000000 /** microseconds in a millisecond */ #define MICROSECONDS_PER_MILLISECOND 1000 /** * Sleeps the given number of milliseconds. * @param milliseconds number of milliseconds */ void _dbus_sleep_milliseconds (int milliseconds) { Sleep (milliseconds); } /** * Get current time, as in gettimeofday(). * * @param tv_sec return location for number of seconds * @param tv_usec return location for number of microseconds */ void _dbus_get_current_time (long *tv_sec, long *tv_usec) { FILETIME ft; dbus_uint64_t *time64 = (dbus_uint64_t *) &ft; GetSystemTimeAsFileTime (&ft); /* Convert from 100s of nanoseconds since 1601-01-01 * to Unix epoch. Yes, this is Y2038 unsafe. */ *time64 -= DBUS_INT64_CONSTANT (116444736000000000); *time64 /= 10; if (tv_sec) *tv_sec = *time64 / 1000000; if (tv_usec) *tv_usec = *time64 % 1000000; } /** * signal (SIGPIPE, SIG_IGN); */ void _dbus_disable_sigpipe (void) { _dbus_verbose("FIXME: implement _dbus_disable_sigpipe (void)\n"); } /** * Appends the contents of the given file to the string, * returning error code. At the moment, won't open a file * more than a megabyte in size. * * @param str the string to append to * @param filename filename to load * @param error place to set an error * @returns #FALSE if error was set */ dbus_bool_t _dbus_file_get_contents (DBusString *str, const DBusString *filename, DBusError *error) { DBusFile file; struct stat sb; int orig_len; int total; const char *filename_c; _DBUS_ASSERT_ERROR_IS_CLEAR (error); filename_c = _dbus_string_get_const_data (filename); /* O_BINARY useful on Cygwin and Win32 */ if (!_dbus_file_open (&file, filename_c, O_RDONLY | O_BINARY, -1)) { dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to open \"%s\": %s", filename_c, _dbus_strerror (errno)); return FALSE; } if (!_dbus_fstat (&file, &sb)) { dbus_set_error (error, _dbus_error_from_errno (errno), "Failed to stat \"%s\": %s", filename_c, _dbus_strerror (errno)); _dbus_verbose ("fstat() failed: %s", _dbus_strerror (errno)); _dbus_file_close (&file, NULL); return FALSE; } if (sb.st_size > _DBUS_ONE_MEGABYTE) { dbus_set_error (error, DBUS_ERROR_FAILED, "File size %lu of \"%s\" is too large.", (unsigned long) sb.st_size, filename_c); _dbus_file_close (&file, NULL); return FALSE; } total = 0; orig_len = _dbus_string_get_length (str); if (sb.st_size > 0 && S_ISREG (sb.st_mode)) { int bytes_read; while (total < (int) sb.st_size) { bytes_read = _dbus_file_read (&file, str, sb.st_size - total); if (bytes_read <= 0) { dbus_set_error (error, _dbus_error_from_errno (errno), "Error reading \"%s\": %s", filename_c, _dbus_strerror (errno)); _dbus_verbose ("read() failed: %s", _dbus_strerror (errno)); _dbus_file_close (&file, NULL); _dbus_string_set_length (str, orig_len); return FALSE; } else total += bytes_read; } _dbus_file_close (&file, NULL); return TRUE; } else if (sb.st_size != 0) { _dbus_verbose ("Can only open regular files at the moment.\n"); dbus_set_error (error, DBUS_ERROR_FAILED, "\"%s\" is not a regular file", filename_c); _dbus_file_close (&file, NULL); return FALSE; } else { _dbus_file_close (&file, NULL); return TRUE; } } /** * Writes a string out to a file. If the file exists, * it will be atomically overwritten by the new data. * * @param str the string to write out * @param filename the file to save string to * @param error error to be filled in on failure * @returns #FALSE on failure */ dbus_bool_t _dbus_string_save_to_file (const DBusString *str, const DBusString *filename, DBusError *error) { DBusFile file; int bytes_to_write; const char *filename_c; DBusString tmp_filename; const char *tmp_filename_c; int total; dbus_bool_t need_unlink; dbus_bool_t retval; _DBUS_ASSERT_ERROR_IS_CLEAR (error); retval = FALSE; need_unlink = FALSE; if (!_dbus_string_init (&tmp_filename)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); return FALSE; } if (!_dbus_string_copy (filename, 0, &tmp_filename, 0)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); _dbus_string_free (&tmp_filename); return FALSE; } if (!_dbus_string_append (&tmp_filename, ".")) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); _dbus_string_free (&tmp_filename); return FALSE; } #define N_TMP_FILENAME_RANDOM_BYTES 8 if (!_dbus_generate_random_ascii (&tmp_filename, N_TMP_FILENAME_RANDOM_BYTES)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); _dbus_string_free (&tmp_filename); return FALSE; } filename_c = _dbus_string_get_const_data (filename); tmp_filename_c = _dbus_string_get_const_data (&tmp_filename); if (!_dbus_file_open (&file, tmp_filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT, 0600)) { dbus_set_error (error, _dbus_error_from_errno (errno), "Could not create %s: %s", tmp_filename_c, _dbus_strerror (errno)); goto out; } need_unlink = TRUE; total = 0; bytes_to_write = _dbus_string_get_length (str); while (total < bytes_to_write) { int bytes_written; bytes_written = _dbus_file_write (&file, str, total, bytes_to_write - total); if (bytes_written <= 0) { dbus_set_error (error, _dbus_error_from_errno (errno), "Could not write to %s: %s", tmp_filename_c, _dbus_strerror (errno)); goto out; } total += bytes_written; } if (!_dbus_file_close (&file, NULL)) { dbus_set_error (error, _dbus_error_from_errno (errno), "Could not close file %s: %s", tmp_filename_c, _dbus_strerror (errno)); goto out; } if ((unlink (filename_c) == -1 && errno != ENOENT) || rename (tmp_filename_c, filename_c) < 0) { dbus_set_error (error, _dbus_error_from_errno (errno), "Could not rename %s to %s: %s", tmp_filename_c, filename_c, _dbus_strerror (errno)); goto out; } need_unlink = FALSE; retval = TRUE; out: /* close first, then unlink, to prevent ".nfs34234235" garbage * files */ if (_dbus_is_valid_file(&file)) _dbus_file_close (&file, NULL); if (need_unlink && unlink (tmp_filename_c) < 0) _dbus_verbose ("Failed to unlink temp file %s: %s\n", tmp_filename_c, _dbus_strerror (errno)); _dbus_string_free (&tmp_filename); if (!retval) _DBUS_ASSERT_ERROR_IS_SET (error); return retval; } /** Creates the given file, failing if the file already exists. * * @param filename the filename * @param error error location * @returns #TRUE if we created the file and it didn't exist */ dbus_bool_t _dbus_create_file_exclusively (const DBusString *filename, DBusError *error) { DBusFile file; const char *filename_c; _DBUS_ASSERT_ERROR_IS_CLEAR (error); filename_c = _dbus_string_get_const_data (filename); if (!_dbus_file_open (&file, filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT, 0600)) { dbus_set_error (error, DBUS_ERROR_FAILED, "Could not create file %s: %s\n", filename_c, _dbus_strerror (errno)); return FALSE; } if (!_dbus_file_close (&file, NULL)) { dbus_set_error (error, DBUS_ERROR_FAILED, "Could not close file %s: %s\n", filename_c, _dbus_strerror (errno)); return FALSE; } return TRUE; } /** * Creates a directory; succeeds if the directory * is created or already existed. * * @param filename directory filename * @param error initialized error object * @returns #TRUE on success */ dbus_bool_t _dbus_create_directory (const DBusString *filename, DBusError *error) { const char *filename_c; _DBUS_ASSERT_ERROR_IS_CLEAR (error); filename_c = _dbus_string_get_const_data (filename); if (_dbus_mkdir (filename_c, 0700) < 0) { if (errno == EEXIST) return TRUE; dbus_set_error (error, DBUS_ERROR_FAILED, "Failed to create directory %s: %s\n", filename_c, _dbus_strerror (errno)); return FALSE; } else return TRUE; } static void pseudorandom_generate_random_bytes_buffer (char *buffer, int n_bytes) { long tv_usec; int i; /* fall back to pseudorandom */ _dbus_verbose ("Falling back to pseudorandom for %d bytes\n", n_bytes); _dbus_get_current_time (NULL, &tv_usec); srand (tv_usec); i = 0; while (i < n_bytes) { double r; unsigned int b; r = rand (); b = (r / (double) RAND_MAX) * 255.0; buffer[i] = b; ++i; } } static dbus_bool_t pseudorandom_generate_random_bytes (DBusString *str, int n_bytes) { int old_len; char *p; old_len = _dbus_string_get_length (str); if (!_dbus_string_lengthen (str, n_bytes)) return FALSE; p = _dbus_string_get_data_len (str, old_len, n_bytes); pseudorandom_generate_random_bytes_buffer (p, n_bytes); return TRUE; } /** * Gets the temporary files directory by inspecting the environment variables * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned * * @returns location of temp directory */ const char* _dbus_get_tmpdir(void) { static const char* tmpdir = NULL; if (tmpdir == NULL) { if (tmpdir == NULL) tmpdir = getenv("TMP"); if (tmpdir == NULL) tmpdir = getenv("TEMP"); if (tmpdir == NULL) tmpdir = getenv("TMPDIR"); if (tmpdir == NULL) tmpdir = "C:\\Temp"; } _dbus_assert(tmpdir != NULL); return tmpdir; } /** * Deletes the given file. * * @param filename the filename * @param error error location * * @returns #TRUE if unlink() succeeded */ dbus_bool_t _dbus_delete_file (const DBusString *filename, DBusError *error) { const char *filename_c; _DBUS_ASSERT_ERROR_IS_CLEAR (error); filename_c = _dbus_string_get_const_data (filename); if (unlink (filename_c) < 0) { dbus_set_error (error, DBUS_ERROR_FAILED, "Failed to delete file %s: %s\n", filename_c, _dbus_strerror (errno)); return FALSE; } else return TRUE; } /** * Generates the given number of random bytes, * using the best mechanism we can come up with. * * @param str the string * @param n_bytes the number of random bytes to append to string * @returns #TRUE on success, #FALSE if no memory */ dbus_bool_t _dbus_generate_random_bytes (DBusString *str, int n_bytes) { return pseudorandom_generate_random_bytes (str, n_bytes); } #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_BUILD_TESTS) #ifdef _MSC_VER # ifdef BACKTRACES # undef BACKTRACES # endif #else # define BACKTRACES #endif #ifdef BACKTRACES /* * Backtrace Generator * * Copyright 2004 Eric Poech * Copyright 2004 Robert Shearman * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #define DPRINTF _dbus_warn #ifdef _MSC_VER #define BOOL int #define __i386__ #endif //#define MAKE_FUNCPTR(f) static typeof(f) * p##f //MAKE_FUNCPTR(StackWalk); //MAKE_FUNCPTR(SymGetModuleBase); //MAKE_FUNCPTR(SymFunctionTableAccess); //MAKE_FUNCPTR(SymInitialize); //MAKE_FUNCPTR(SymGetSymFromAddr); //MAKE_FUNCPTR(SymGetModuleInfo); static BOOL (WINAPI *pStackWalk)( DWORD MachineType, HANDLE hProcess, HANDLE hThread, LPSTACKFRAME StackFrame, PVOID ContextRecord, PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine, PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine, PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine, PTRANSLATE_ADDRESS_ROUTINE TranslateAddress ); static DWORD (WINAPI *pSymGetModuleBase)( HANDLE hProcess, DWORD dwAddr ); static PVOID (WINAPI *pSymFunctionTableAccess)( HANDLE hProcess, DWORD AddrBase ); static BOOL (WINAPI *pSymInitialize)( HANDLE hProcess, PSTR UserSearchPath, BOOL fInvadeProcess ); static BOOL (WINAPI *pSymGetSymFromAddr)( HANDLE hProcess, DWORD Address, PDWORD Displacement, PIMAGEHLP_SYMBOL Symbol ); static BOOL (WINAPI *pSymGetModuleInfo)( HANDLE hProcess, DWORD dwAddr, PIMAGEHLP_MODULE ModuleInfo ); static DWORD (WINAPI *pSymSetOptions)( DWORD SymOptions ); static BOOL init_backtrace() { HMODULE hmodDbgHelp = LoadLibraryA("dbghelp"); /* #define GETFUNC(x) \ p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \ if (!p##x) \ { \ return FALSE; \ } */ // GETFUNC(StackWalk); // GETFUNC(SymGetModuleBase); // GETFUNC(SymFunctionTableAccess); // GETFUNC(SymInitialize); // GETFUNC(SymGetSymFromAddr); // GETFUNC(SymGetModuleInfo); #define FUNC(x) #x pStackWalk = (BOOL (WINAPI *)( DWORD MachineType, HANDLE hProcess, HANDLE hThread, LPSTACKFRAME StackFrame, PVOID ContextRecord, PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine, PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine, PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine, PTRANSLATE_ADDRESS_ROUTINE TranslateAddress ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk)); pSymGetModuleBase=(DWORD (WINAPI *)( HANDLE hProcess, DWORD dwAddr ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase)); pSymFunctionTableAccess=(PVOID (WINAPI *)( HANDLE hProcess, DWORD AddrBase ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess)); pSymInitialize = (BOOL (WINAPI *)( HANDLE hProcess, PSTR UserSearchPath, BOOL fInvadeProcess ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize)); pSymGetSymFromAddr = (BOOL (WINAPI *)( HANDLE hProcess, DWORD Address, PDWORD Displacement, PIMAGEHLP_SYMBOL Symbol ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr)); pSymGetModuleInfo = (BOOL (WINAPI *)( HANDLE hProcess, DWORD dwAddr, PIMAGEHLP_MODULE ModuleInfo ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo)); pSymSetOptions = (DWORD (WINAPI *)( DWORD SymOptions ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions)); pSymSetOptions(SYMOPT_UNDNAME); pSymInitialize(GetCurrentProcess(), NULL, TRUE); return TRUE; } static void dump_backtrace_for_thread(HANDLE hThread) { STACKFRAME sf; CONTEXT context; DWORD dwImageType; if (!pStackWalk) if (!init_backtrace()) return; /* can't use this function for current thread as GetThreadContext * doesn't support getting context from current thread */ if (hThread == GetCurrentThread()) return; DPRINTF("Backtrace:\n"); memset(&context, 0, sizeof(context)); context.ContextFlags = CONTEXT_FULL; SuspendThread(hThread); if (!GetThreadContext(hThread, &context)) { DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError()); ResumeThread(hThread); return; } memset(&sf, 0, sizeof(sf)); #ifdef __i386__ sf.AddrFrame.Offset = context.Ebp; sf.AddrFrame.Mode = AddrModeFlat; sf.AddrPC.Offset = context.Eip; sf.AddrPC.Mode = AddrModeFlat; dwImageType = IMAGE_FILE_MACHINE_I386; #else # error You need to fill in the STACKFRAME structure for your architecture #endif while (pStackWalk(dwImageType, GetCurrentProcess(), hThread, &sf, &context, NULL, pSymFunctionTableAccess, pSymGetModuleBase, NULL)) { BYTE buffer[256]; IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer; DWORD dwDisplacement; pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL); pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1; if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset, &dwDisplacement, pSymbol)) { IMAGEHLP_MODULE ModuleInfo; ModuleInfo.SizeOfStruct = sizeof(ModuleInfo); if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset, &ModuleInfo)) DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset); else DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName, sf.AddrPC.Offset - ModuleInfo.BaseOfImage); } else if (dwDisplacement) DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement); else DPRINTF("4\t%s\n", pSymbol->Name); } ResumeThread(hThread); } static DWORD WINAPI dump_thread_proc(LPVOID lpParameter) { dump_backtrace_for_thread((HANDLE)lpParameter); return 0; } /* cannot get valid context from current thread, so we have to execute * backtrace from another thread */ static void dump_backtrace() { HANDLE hCurrentThread; HANDLE hThread; DWORD dwThreadId; DuplicateHandle(GetCurrentProcess(), GetCurrentThread(), GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS); hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread, 0, &dwThreadId); WaitForSingleObject(hThread, INFINITE); CloseHandle(hThread); CloseHandle(hCurrentThread); } void _dbus_print_backtrace(void) { init_backtrace(); dump_backtrace(); } #else void _dbus_print_backtrace(void) { _dbus_verbose (" D-Bus not compiled with backtrace support\n"); } #endif static dbus_uint32_t fromAscii(char ascii) { if(ascii >= '0' && ascii <= '9') return ascii - '0'; if(ascii >= 'A' && ascii <= 'F') return ascii - 'A' + 10; if(ascii >= 'a' && ascii <= 'f') return ascii - 'a' + 10; return 0; } dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id, dbus_bool_t create_if_not_found, DBusError *error) { #ifdef DBUS_WINCE return TRUE; // TODO #else HW_PROFILE_INFOA info; char *lpc = &info.szHwProfileGuid[0]; dbus_uint32_t u; // the hw-profile guid lives long enough if(!GetCurrentHwProfileA(&info)) { dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME return FALSE; } // Form: {12340001-4980-1920-6788-123456789012} lpc++; // 12340001 u = ((fromAscii(lpc[0]) << 0) | (fromAscii(lpc[1]) << 4) | (fromAscii(lpc[2]) << 8) | (fromAscii(lpc[3]) << 12) | (fromAscii(lpc[4]) << 16) | (fromAscii(lpc[5]) << 20) | (fromAscii(lpc[6]) << 24) | (fromAscii(lpc[7]) << 28)); machine_id->as_uint32s[0] = u; lpc += 9; // 4980-1920 u = ((fromAscii(lpc[0]) << 0) | (fromAscii(lpc[1]) << 4) | (fromAscii(lpc[2]) << 8) | (fromAscii(lpc[3]) << 12) | (fromAscii(lpc[5]) << 16) | (fromAscii(lpc[6]) << 20) | (fromAscii(lpc[7]) << 24) | (fromAscii(lpc[8]) << 28)); machine_id->as_uint32s[1] = u; lpc += 10; // 6788-1234 u = ((fromAscii(lpc[0]) << 0) | (fromAscii(lpc[1]) << 4) | (fromAscii(lpc[2]) << 8) | (fromAscii(lpc[3]) << 12) | (fromAscii(lpc[5]) << 16) | (fromAscii(lpc[6]) << 20) | (fromAscii(lpc[7]) << 24) | (fromAscii(lpc[8]) << 28)); machine_id->as_uint32s[2] = u; lpc += 9; // 56789012 u = ((fromAscii(lpc[0]) << 0) | (fromAscii(lpc[1]) << 4) | (fromAscii(lpc[2]) << 8) | (fromAscii(lpc[3]) << 12) | (fromAscii(lpc[4]) << 16) | (fromAscii(lpc[5]) << 20) | (fromAscii(lpc[6]) << 24) | (fromAscii(lpc[7]) << 28)); machine_id->as_uint32s[3] = u; #endif return TRUE; } static HANDLE _dbus_global_lock (const char *mutexname) { HANDLE mutex; DWORD gotMutex; mutex = CreateMutex( NULL, FALSE, mutexname ); if( !mutex ) { return FALSE; } gotMutex = WaitForSingleObject( mutex, INFINITE ); switch( gotMutex ) { case WAIT_ABANDONED: ReleaseMutex (mutex); CloseHandle (mutex); return 0; case WAIT_FAILED: case WAIT_TIMEOUT: return 0; } return mutex; } static void _dbus_global_unlock (HANDLE mutex) { ReleaseMutex (mutex); CloseHandle (mutex); } // for proper cleanup in dbus-daemon static HANDLE hDBusDaemonMutex = NULL; static HANDLE hDBusSharedMem = NULL; // sync _dbus_daemon_init, _dbus_daemon_uninit and _dbus_daemon_already_runs static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex"; // sync _dbus_get_autolaunch_address static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex"; // mutex to determine if dbus-daemon is already started (per user) static const char *cDBusDaemonMutex = "DBusDaemonMutex"; // named shm for dbus adress info (per user) static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo"; void _dbus_daemon_init(const char *host, dbus_uint32_t port) { HANDLE lock; const char *adr = NULL; char szUserName[64]; DWORD dwUserNameSize = sizeof(szUserName); char szDBusDaemonMutex[128]; char szDBusDaemonAddressInfo[128]; char szAddress[128]; _dbus_assert(host); _dbus_assert(port); _snprintf(szAddress, sizeof(szAddress) - 1, "tcp:host=%s,port=%d", host, port); _dbus_assert( GetUserName(szUserName, &dwUserNameSize) != 0); _snprintf(szDBusDaemonMutex, sizeof(szDBusDaemonMutex) - 1, "%s:%s", cDBusDaemonMutex, szUserName); _snprintf(szDBusDaemonAddressInfo, sizeof(szDBusDaemonAddressInfo) - 1, "%s:%s", cDBusDaemonAddressInfo, szUserName); // before _dbus_global_lock to keep correct lock/release order hDBusDaemonMutex = CreateMutex( NULL, FALSE, szDBusDaemonMutex ); _dbus_assert(WaitForSingleObject( hDBusDaemonMutex, 1000 ) == WAIT_OBJECT_0); // sync _dbus_daemon_init, _dbus_daemon_uninit and _dbus_daemon_already_runs lock = _dbus_global_lock( cUniqueDBusInitMutex ); // create shm hDBusSharedMem = CreateFileMapping( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, strlen( szAddress ) + 1, szDBusDaemonAddressInfo ); _dbus_assert( hDBusSharedMem ); adr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 ); _dbus_assert( adr ); strcpy(adr, szAddress); // cleanup UnmapViewOfFile( adr ); _dbus_global_unlock( lock ); } void _dbus_daemon_release() { HANDLE lock; // sync _dbus_daemon_init, _dbus_daemon_uninit and _dbus_daemon_already_runs lock = _dbus_global_lock( cUniqueDBusInitMutex ); CloseHandle( hDBusSharedMem ); hDBusSharedMem = NULL; ReleaseMutex( hDBusDaemonMutex ); CloseHandle( hDBusDaemonMutex ); hDBusDaemonMutex = NULL; _dbus_global_unlock( lock ); } static dbus_bool_t _dbus_get_autolaunch_shm(DBusString *adress) { HANDLE sharedMem; const char *adr; char szUserName[64]; DWORD dwUserNameSize = sizeof(szUserName); char szDBusDaemonAddressInfo[128]; if( !GetUserName(szUserName, &dwUserNameSize) ) return FALSE; _snprintf(szDBusDaemonAddressInfo, sizeof(szDBusDaemonAddressInfo) - 1, "%s:%s", cDBusDaemonAddressInfo, szUserName); // read shm do { // we know that dbus-daemon is available, so we wait until shm is available sharedMem = OpenFileMapping( FILE_MAP_READ, FALSE, szDBusDaemonAddressInfo ); if( sharedMem == 0 ) Sleep( 100 ); } while( sharedMem == 0 ); if( sharedMem == 0 ) return FALSE; adr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 ); if( adr == 0 ) return FALSE; _dbus_string_init( adress ); _dbus_string_append( adress, adr ); // cleanup UnmapViewOfFile( adr ); CloseHandle( sharedMem ); return TRUE; } static dbus_bool_t _dbus_daemon_already_runs (DBusString *adress) { HANDLE lock; HANDLE daemon; dbus_bool_t bRet = TRUE; char szUserName[64]; DWORD dwUserNameSize = sizeof(szUserName); char szDBusDaemonMutex[128]; // sync _dbus_daemon_init, _dbus_daemon_uninit and _dbus_daemon_already_runs lock = _dbus_global_lock( cUniqueDBusInitMutex ); if( !GetUserName(szUserName, &dwUserNameSize) ) return FALSE; _snprintf(szDBusDaemonMutex, sizeof(szDBusDaemonMutex) - 1, "%s:%s", cDBusDaemonMutex, szUserName); // do checks daemon = CreateMutex( NULL, FALSE, szDBusDaemonMutex ); if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT) { ReleaseMutex (daemon); CloseHandle (daemon); _dbus_global_unlock( lock ); return FALSE; } // read shm bRet = _dbus_get_autolaunch_shm( adress ); // cleanup CloseHandle ( daemon ); _dbus_global_unlock( lock ); return bRet; } dbus_bool_t _dbus_get_autolaunch_address (DBusString *address, DBusError *error) { HANDLE mutex; STARTUPINFOA si; PROCESS_INFORMATION pi; dbus_bool_t retval = FALSE; LPSTR lpFile; char dbus_exe_path[MAX_PATH]; char dbus_args[MAX_PATH * 2]; mutex = _dbus_global_lock ( cDBusAutolaunchMutex ); _DBUS_ASSERT_ERROR_IS_CLEAR (error); if (_dbus_daemon_already_runs(address)) { printf("dbus daemon already exists\n"); retval = TRUE; goto out; } if (!SearchPathA(NULL, "dbus-daemon.exe", NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile)) { printf ("could not find dbus-daemon executable\n"); goto out; } // Create process ZeroMemory( &si, sizeof(si) ); si.cb = sizeof(si); ZeroMemory( &pi, sizeof(pi) ); _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session"); // argv[i] = "--config-file=bus\\session.conf"; printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args); if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) { retval = TRUE; // Wait until started (see _dbus_get_autolaunch_shm()) WaitForInputIdle(pi.hProcess, INFINITE); retval = _dbus_get_autolaunch_shm( address ); } else { retval = FALSE; } out: if (retval) _DBUS_ASSERT_ERROR_IS_CLEAR (error); else _DBUS_ASSERT_ERROR_IS_SET (error); _dbus_global_unlock (mutex); return retval; } /** Makes the file readable by every user in the system. * * @param filename the filename * @param error error location * @returns #TRUE if the file's permissions could be changed. */ dbus_bool_t _dbus_make_file_world_readable(const DBusString *filename, DBusError *error) { // TODO return TRUE; } #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services" /** * Returns the standard directories for a session bus to look for service * activation files * * On Windows this should be data directories: * * %CommonProgramFiles%/dbus * * and * * DBUS_DATADIR * * @param dirs the directory list we are returning * @returns #FALSE on OOM */ dbus_bool_t _dbus_get_standard_session_servicedirs (DBusList **dirs) { const char *common_progs; DBusString servicedir_path; if (!_dbus_string_init (&servicedir_path)) return FALSE; if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR _DBUS_PATH_SEPARATOR)) goto oom; common_progs = _dbus_getenv ("CommonProgramFiles"); if (common_progs != NULL) { if (!_dbus_string_append (&servicedir_path, common_progs)) goto oom; if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR)) goto oom; } if (!_dbus_split_paths_and_append (&servicedir_path, DBUS_STANDARD_SESSION_SERVICEDIR, dirs)) goto oom; _dbus_string_free (&servicedir_path); return TRUE; oom: _dbus_string_free (&servicedir_path); return FALSE; } _DBUS_DEFINE_GLOBAL_LOCK (atomic); /** * Atomically increments an integer * * @param atomic pointer to the integer to increment * @returns the value before incrementing * */ dbus_int32_t _dbus_atomic_inc (DBusAtomic *atomic) { // +/- 1 is needed here! return InterlockedIncrement (&atomic->value) - 1; } /** * Atomically decrement an integer * * @param atomic pointer to the integer to decrement * @returns the value before decrementing * */ dbus_int32_t _dbus_atomic_dec (DBusAtomic *atomic) { // +/- 1 is needed here! return InterlockedDecrement (&atomic->value) + 1; } #endif /* asserts or tests enabled */ /** * Called when the bus daemon is signaled to reload its configuration; any * caches should be nuked. Of course any caches that need explicit reload * are probably broken, but c'est la vie. * * */ void _dbus_flush_caches (void) { } dbus_bool_t _dbus_windows_user_is_process_owner (const char *windows_sid) { return TRUE; } /** * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently * for Winsock so is abstracted) * * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK */ dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock (void) { return errno == EAGAIN || errno == EWOULDBLOCK; } /** * return the absolute path of the dbus installation * * @param s buffer for installation path * @param len length of buffer * @returns #FALSE on failure */ dbus_bool_t _dbus_get_install_root(char *s, int len) { char *p = NULL; int ret = GetModuleFileName(NULL,s,len); if ( ret == 0 || ret == len && GetLastError() == ERROR_INSUFFICIENT_BUFFER) { *s = '\0'; return FALSE; } else if ((p = strstr(s,"\\bin\\"))) { *(p+1)= '\0'; return TRUE; } else { *s = '\0'; return FALSE; } } /** find config file either from installation or build root according to the following path layout install-root/ bin/dbus-daemon[d].exe etc/.conf build-root/ bin/dbus-daemon[d].exe bus/.conf */ dbus_bool_t _dbus_get_config_file_name(DBusString *config_file, char *s) { char path[MAX_PATH*2]; int path_size = sizeof(path); if (!_dbus_get_install_root(path,path_size)) return FALSE; strcat_s(path,path_size,"etc\\"); strcat_s(path,path_size,s); if (_dbus_file_exists(path)) { // find path from executable if (!_dbus_string_append (config_file, path)) return FALSE; } else { if (!_dbus_get_install_root(path,path_size)) return FALSE; strcat_s(path,path_size,"bus\\"); strcat_s(path,path_size,s); if (_dbus_file_exists(path)) { if (!_dbus_string_append (config_file, path)) return FALSE; } } return TRUE; } /** * Append the absolute path of the system.conf file * (there is no system bus on Windows so this can just * return FALSE and print a warning or something) * * @param str the string to append to * @returns #FALSE if no memory */ dbus_bool_t _dbus_append_system_config_file (DBusString *str) { return _dbus_get_config_file_name(str, "system.conf"); } /** * Append the absolute path of the session.conf file. * * @param str the string to append to * @returns #FALSE if no memory */ dbus_bool_t _dbus_append_session_config_file (DBusString *str) { return _dbus_get_config_file_name(str, "session.conf"); } /** * Appends the directory in which a keyring for the given credentials * should be stored. The credentials should have either a Windows or * UNIX user in them. The directory should be an absolute path. * * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably * be something else, since the dotfile convention is not normal on Windows. * * @param directory string to append directory to * @param credentials credentials the directory should be for * * @returns #FALSE on no memory */ dbus_bool_t _dbus_append_keyring_directory_for_credentials (DBusString *directory, DBusCredentials *credentials) { DBusString homedir; DBusString dotdir; dbus_uid_t uid; const char *homepath; _dbus_assert (credentials != NULL); _dbus_assert (!_dbus_credentials_are_anonymous (credentials)); if (!_dbus_string_init (&homedir)) return FALSE; homepath = _dbus_getenv("HOMEPATH"); if (homepath != NULL && *homepath != '\0') { _dbus_string_append(&homedir,homepath); } #ifdef DBUS_BUILD_TESTS { const char *override; override = _dbus_getenv ("DBUS_TEST_HOMEDIR"); if (override != NULL && *override != '\0') { _dbus_string_set_length (&homedir, 0); if (!_dbus_string_append (&homedir, override)) goto failed; _dbus_verbose ("Using fake homedir for testing: %s\n", _dbus_string_get_const_data (&homedir)); } else { static dbus_bool_t already_warned = FALSE; if (!already_warned) { _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n"); already_warned = TRUE; } } } #endif _dbus_string_init_const (&dotdir, ".dbus-keyrings"); if (!_dbus_concat_dir_and_file (&homedir, &dotdir)) goto failed; if (!_dbus_string_copy (&homedir, 0, directory, _dbus_string_get_length (directory))) { goto failed; } _dbus_string_free (&homedir); return TRUE; failed: _dbus_string_free (&homedir); return FALSE; } /** @} end of sysdeps-win */ /* tests in dbus-sysdeps-util.c */