2 * Drive autodetection code
4 * Copyright 2004 Mike Hearn
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "wine/port.h"
36 #include <wine/debug.h>
37 #include <wine/library.h>
43 WINE_DEFAULT_DEBUG_CHANNEL(winecfg);
46 static ULONG working_mask = 0;
56 static const DEV_NODES sDeviceNodes[] = {
57 {"/dev/fd", DRIVE_REMOVABLE},
58 {"/dev/pf", DRIVE_REMOVABLE},
59 {"/dev/acd", DRIVE_CDROM},
60 {"/dev/aztcd", DRIVE_CDROM},
61 {"/dev/bpcd", DRIVE_CDROM},
62 {"/dev/cd", DRIVE_CDROM},
63 {"/dev/cdrom", DRIVE_CDROM},
64 {"/dev/cdu535", DRIVE_CDROM},
65 {"/dev/cdwriter", DRIVE_CDROM},
66 {"/dev/cm205cd", DRIVE_CDROM},
67 {"/dev/cm206cd", DRIVE_CDROM},
68 {"/dev/gscd", DRIVE_CDROM},
69 {"/dev/hitcd", DRIVE_CDROM},
70 {"/dev/iseries/vcd", DRIVE_CDROM},
71 {"/dev/lmscd", DRIVE_CDROM},
72 {"/dev/mcd", DRIVE_CDROM},
73 {"/dev/optcd", DRIVE_CDROM},
74 {"/dev/pcd", DRIVE_CDROM},
75 {"/dev/sbpcd", DRIVE_CDROM},
76 {"/dev/scd", DRIVE_CDROM},
77 {"/dev/sjcd", DRIVE_CDROM},
78 {"/dev/sonycd", DRIVE_CDROM},
79 {"/dev/sr", DRIVE_CDROM},
83 static const char * const ignored_fstypes[] = {
95 static const char * const ignored_mnt_dirs[] = {
100 static int try_dev_node(char *dev)
102 const DEV_NODES *pDevNodes = sDeviceNodes;
104 while(pDevNodes->szNode[0])
106 if(!strncmp(dev,pDevNodes->szNode,strlen(pDevNodes->szNode)))
107 return pDevNodes->nType;
114 static BOOL should_ignore_fstype(char *type)
116 const char * const *s;
118 for (s = ignored_fstypes; *s; s++)
119 if (!strcmp(*s, type)) return TRUE;
124 static BOOL should_ignore_mnt_dir(char *dir)
126 const char * const *s;
128 for (s = ignored_mnt_dirs; *s; s++)
129 if (!strcmp(*s, dir)) return TRUE;
134 static BOOL is_drive_defined(char *path)
138 for (i = 0; i < 26; i++)
139 if (drives[i].in_use && !strcmp(drives[i].unixpath, path)) return TRUE;
144 /* returns Z + 1 if there are no more available letters */
145 static char allocate_letter(int type)
149 if (type == DRIVE_REMOVABLE)
154 for (letter = start; letter <= 'Z'; letter++)
155 if ((DRIVE_MASK_BIT(letter) & working_mask) != 0) break;
162 #define NO_MORE_LETTERS 2
167 static void report_error(int code)
177 static const char s[] = "Could not open your mountpoint description table.\n\nOpening of /etc/fstab failed: %s";
178 len = snprintf(NULL, 0, s, strerror(errno));
179 buffer = HeapAlloc(GetProcessHeap(), 0, len + 1);
180 snprintf(buffer, len, s, strerror(errno));
181 MessageBoxA(NULL, s, "", MB_OK | MB_ICONEXCLAMATION);
182 HeapFree(GetProcessHeap(), 0, buffer);
186 fprintf(stderr, "winecfg: could not open fstab: %s\n", strerror(errno));
190 case NO_MORE_LETTERS:
191 if (gui_mode) MessageBoxA(NULL, "No more letters are available to auto-detect available drives with.", "", MB_OK | MB_ICONEXCLAMATION);
192 fprintf(stderr, "winecfg: no more available letters while scanning /etc/fstab\n");
196 if (gui_mode) MessageBoxA(NULL, "Could not ensure that the root directory was mapped.\n\n"
197 "This can happen if you run out of drive letters. "
198 "It's important to have the root directory mapped, otherwise Wine"
199 "will not be able to always find the programs you want to run. "
200 "Try unmapping a drive letter then trying again.", "",
201 MB_OK | MB_ICONEXCLAMATION);
202 else fprintf(stderr, "winecfg: unable to map root drive\n");
207 MessageBoxA(NULL, "No virtual drive C mapped!\n", "", MB_OK | MB_ICONEXCLAMATION);
209 fprintf(stderr, "winecfg: no drive_c directory\n");
213 MessageBoxA(NULL, "Could not ensure that your home directory was mapped.\n\n"
214 "This can happen if you run out of drive letters. "
215 "Try unmapping a drive letter then try again.", "",
216 MB_OK | MB_ICONEXCLAMATION);
218 fprintf(stderr, "winecfg: unable to map home drive\n");
223 static void ensure_root_is_mapped(void)
228 for (i = 0; i < 26; i++)
229 if (drives[i].in_use && !strcmp(drives[i].unixpath, "/")) mapped = TRUE;
233 /* work backwards from Z, trying to map it */
236 for (letter = 'Z'; letter >= 'A'; letter--)
238 if (!drives[letter - 'A'].in_use)
240 add_drive(letter, "/", NULL, NULL, 0, DRIVE_FIXED);
241 WINE_TRACE("allocated drive %c as the root drive\n", letter);
246 if (letter == ('A' - 1)) report_error(NO_ROOT);
250 static void ensure_home_is_mapped(void)
254 char *home = getenv("HOME");
258 for (i = 0; i < 26; i++)
259 if (drives[i].in_use && !strcmp(drives[i].unixpath, home)) mapped = TRUE;
265 for (letter = 'H'; letter <= 'Z'; letter++)
267 if (!drives[letter - 'A'].in_use)
269 add_drive(letter, home, NULL, NULL, 0, DRIVE_FIXED);
270 WINE_TRACE("allocated drive %c as the user's home directory\n", letter);
274 if (letter == ('Z' + 1)) report_error(NO_HOME);
278 static void ensure_drive_c_is_mapped(void)
281 const char *configdir = wine_get_config_dir();
285 if (drives[2].in_use) return;
287 len = snprintf(NULL, 0, "%s/../drive_c", configdir);
288 drive_c_dir = HeapAlloc(GetProcessHeap(), 0, len);
289 snprintf(drive_c_dir, len, "%s/../drive_c", configdir);
291 if (stat(drive_c_dir, &buf) == 0)
294 LoadStringW (GetModuleHandleW(NULL), IDS_SYSTEM_DRIVE_LABEL, label,
295 sizeof(label)/sizeof(label[0]));
296 add_drive('C', "../drive_c", NULL, label, 0, DRIVE_FIXED);
300 report_error(NO_DRIVE_C);
302 HeapFree(GetProcessHeap(), 0, drive_c_dir);
305 int autodetect_drives(void)
312 /* we want to build a list of autodetected drives, then ensure each entry
313 exists in the users setup. so, we superimpose the autodetected drives
314 onto whatever is pre-existing.
316 for now let's just rummage around inside the fstab.
321 working_mask = drive_available_mask('\0');
324 fstab = fopen("/etc/fstab", "r");
327 report_error(FSTAB_OPEN);
331 while ((ent = getmntent(fstab)))
337 WINE_TRACE("ent->mnt_dir=%s\n", ent->mnt_dir);
339 if (should_ignore_fstype(ent->mnt_type)) continue;
340 if (should_ignore_mnt_dir(ent->mnt_dir)) continue;
341 if (is_drive_defined(ent->mnt_dir)) continue;
343 if (!strcmp(ent->mnt_type, "nfs")) type = DRIVE_REMOTE;
344 else if (!strcmp(ent->mnt_type, "nfs4")) type = DRIVE_REMOTE;
345 else if (!strcmp(ent->mnt_type, "smbfs")) type = DRIVE_REMOTE;
346 else if (!strcmp(ent->mnt_type, "cifs")) type = DRIVE_REMOTE;
347 else if (!strcmp(ent->mnt_type, "coda")) type = DRIVE_REMOTE;
348 else if (!strcmp(ent->mnt_type, "iso9660")) type = DRIVE_CDROM;
349 else if (!strcmp(ent->mnt_type, "ramfs")) type = DRIVE_RAMDISK;
350 else type = try_dev_node(ent->mnt_fsname);
352 /* allocate a drive for it */
353 letter = allocate_letter(type);
354 if (letter == 'Z' + 1)
356 report_error(NO_MORE_LETTERS);
361 if (type == DRIVE_CDROM) device = ent->mnt_fsname;
363 WINE_TRACE("adding drive %c for %s, device %s, type %s\n",
364 letter, ent->mnt_dir, device, ent->mnt_type);
365 add_drive(letter, ent->mnt_dir, device, NULL, 0, type);
367 /* working_mask is a map of the drive letters still available. */
368 working_mask &= ~DRIVE_MASK_BIT(letter);
374 ensure_root_is_mapped();
376 ensure_drive_c_is_mapped();
378 ensure_home_is_mapped();