/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ /* GIO - GLib Input, Output and Streaming Library * * Copyright (C) 2006-2007 Red Hat, Inc. * * 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 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. * * Author: Alexander Larsson */ #include "config.h" #include #include #include #ifndef HAVE_SYSCTLBYNAME #ifdef HAVE_SYS_PARAM_H #include #endif #ifdef HAVE_SYS_POLL_H #include #endif #endif #ifdef HAVE_POLL_H #include #endif #if HAVE_SYS_STATVFS_H #include #endif #include #include #include #include #include #include #include #include #include "gunixmounts.h" #include "gfile.h" #include "gfilemonitor.h" #include "glibintl.h" #include "gthemedicon.h" #include "gioalias.h" static const char *_resolve_dev_root (void); /** * SECTION:gunixmounts * @include: gio/gunixmounts.h * @short_description: Unix Mounts * * Routines for managing mounted UNIX mount points and paths. * * Note that <gio/gunixmounts.h> belongs to the * UNIX-specific GIO interfaces, thus you have to use the * gio-unix-2.0.pc pkg-config file when using it. */ /* * GUnixMountType: * @G_UNIX_MOUNT_TYPE_UNKNOWN: Unknown UNIX mount type. * @G_UNIX_MOUNT_TYPE_FLOPPY: Floppy disk UNIX mount type. * @G_UNIX_MOUNT_TYPE_CDROM: CDROM UNIX mount type. * @G_UNIX_MOUNT_TYPE_NFS: Network File System (NFS) UNIX mount type. * @G_UNIX_MOUNT_TYPE_ZIP: ZIP UNIX mount type. * @G_UNIX_MOUNT_TYPE_JAZ: JAZZ UNIX mount type. * @G_UNIX_MOUNT_TYPE_MEMSTICK: Memory Stick UNIX mount type. * @G_UNIX_MOUNT_TYPE_CF: Compact Flash UNIX mount type. * @G_UNIX_MOUNT_TYPE_SM: Smart Media UNIX mount type. * @G_UNIX_MOUNT_TYPE_SDMMC: SD/MMC UNIX mount type. * @G_UNIX_MOUNT_TYPE_IPOD: iPod UNIX mount type. * @G_UNIX_MOUNT_TYPE_CAMERA: Digital camera UNIX mount type. * @G_UNIX_MOUNT_TYPE_HD: Hard drive UNIX mount type. * * Types of UNIX mounts. **/ typedef enum { G_UNIX_MOUNT_TYPE_UNKNOWN, G_UNIX_MOUNT_TYPE_FLOPPY, G_UNIX_MOUNT_TYPE_CDROM, G_UNIX_MOUNT_TYPE_NFS, G_UNIX_MOUNT_TYPE_ZIP, G_UNIX_MOUNT_TYPE_JAZ, G_UNIX_MOUNT_TYPE_MEMSTICK, G_UNIX_MOUNT_TYPE_CF, G_UNIX_MOUNT_TYPE_SM, G_UNIX_MOUNT_TYPE_SDMMC, G_UNIX_MOUNT_TYPE_IPOD, G_UNIX_MOUNT_TYPE_CAMERA, G_UNIX_MOUNT_TYPE_HD } GUnixMountType; struct _GUnixMountEntry { char *mount_path; char *device_path; char *filesystem_type; gboolean is_read_only; gboolean is_system_internal; }; struct _GUnixMountPoint { char *mount_path; char *device_path; char *filesystem_type; gboolean is_read_only; gboolean is_user_mountable; gboolean is_loopback; }; enum { MOUNTS_CHANGED, MOUNTPOINTS_CHANGED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL]; struct _GUnixMountMonitor { GObject parent; GFileMonitor *fstab_monitor; GFileMonitor *mtab_monitor; }; struct _GUnixMountMonitorClass { GObjectClass parent_class; }; static GUnixMountMonitor *the_mount_monitor = NULL; static GList *_g_get_unix_mounts (void); static GList *_g_get_unix_mount_points (void); G_DEFINE_TYPE (GUnixMountMonitor, g_unix_mount_monitor, G_TYPE_OBJECT); #define MOUNT_POLL_INTERVAL 4000 #ifdef HAVE_SYS_MNTTAB_H #define MNTOPT_RO "ro" #endif #ifdef HAVE_MNTENT_H #include #elif defined (HAVE_SYS_MNTTAB_H) #include #endif #ifdef HAVE_SYS_VFSTAB_H #include #endif #if defined(HAVE_SYS_MNTCTL_H) && defined(HAVE_SYS_VMOUNT_H) && defined(HAVE_SYS_VFS_H) #include #include #include #include #endif #if defined(HAVE_GETMNTINFO) && defined(HAVE_FSTAB_H) && defined(HAVE_SYS_MOUNT_H) #include #include #include #ifdef HAVE_SYS_SYSCTL_H #include #endif #endif #ifndef HAVE_SETMNTENT #define setmntent(f,m) fopen(f,m) #endif #ifndef HAVE_ENDMNTENT #define endmntent(f) fclose(f) #endif static gboolean is_in (const char *value, const char *set[]) { int i; for (i = 0; set[i] != NULL; i++) { if (strcmp (set[i], value) == 0) return TRUE; } return FALSE; } /** * g_unix_is_mount_path_system_internal: * @mount_path: a mount path, e.g. /media/disk * or /usr * * Determines if @mount_path is considered an implementation of the * OS. This is primarily used for hiding mountable and mounted volumes * that only are used in the OS and has little to no relevance to the * casual user. * * Returns: %TRUE if @mount_path is considered an implementation detail * of the OS. **/ gboolean g_unix_is_mount_path_system_internal (const char *mount_path) { const char *ignore_mountpoints[] = { /* Includes all FHS 2.3 toplevel dirs and other specilized * directories that we want to hide from the user. */ "/", /* we already have "Filesystem root" in Nautilus */ "/bin", "/boot", "/dev", "/etc", "/home", "/lib", "/lib64", "/media", "/mnt", "/opt", "/root", "/sbin", "/srv", "/tmp", "/usr", "/usr/local", "/var", "/var/log/audit", /* https://bugzilla.redhat.com/show_bug.cgi?id=333041 */ "/var/tmp", /* https://bugzilla.redhat.com/show_bug.cgi?id=335241 */ "/proc", "/sbin", "/net", NULL }; if (is_in (mount_path, ignore_mountpoints)) return TRUE; if (g_str_has_prefix (mount_path, "/dev") || g_str_has_prefix (mount_path, "/proc") || g_str_has_prefix (mount_path, "/sys")) return TRUE; if (strstr (mount_path, "/.gvfs") != NULL) return TRUE; return FALSE; } static gboolean guess_system_internal (const char *mountpoint, const char *fs, const char *device) { const char *ignore_fs[] = { "auto", "autofs", "devfs", "devpts", "ecryptfs", "kernfs", "linprocfs", "proc", "procfs", "ptyfs", "rootfs", "selinuxfs", "sysfs", "tmpfs", "usbfs", "nfsd", "rpc_pipefs", "zfs", NULL }; const char *ignore_devices[] = { "none", "sunrpc", "devpts", "nfsd", "/dev/loop", "/dev/vn", NULL }; if (is_in (fs, ignore_fs)) return TRUE; if (is_in (device, ignore_devices)) return TRUE; if (g_unix_is_mount_path_system_internal (mountpoint)) return TRUE; return FALSE; } #ifdef HAVE_MNTENT_H static char * get_mtab_read_file (void) { #ifdef _PATH_MOUNTED # ifdef __linux__ return "/proc/mounts"; # else return _PATH_MOUNTED; # endif #else return "/etc/mtab"; #endif } static char * get_mtab_monitor_file (void) { #ifdef _PATH_MOUNTED return _PATH_MOUNTED; #else return "/etc/mtab"; #endif } #ifndef HAVE_GETMNTENT_R G_LOCK_DEFINE_STATIC(getmntent); #endif static GList * _g_get_unix_mounts (void) { #ifdef HAVE_GETMNTENT_R struct mntent ent; char buf[1024]; #endif struct mntent *mntent; FILE *file; char *read_file; GUnixMountEntry *mount_entry; GHashTable *mounts_hash; GList *return_list; read_file = get_mtab_read_file (); file = setmntent (read_file, "r"); if (file == NULL) return NULL; return_list = NULL; mounts_hash = g_hash_table_new (g_str_hash, g_str_equal); #ifdef HAVE_GETMNTENT_R while ((mntent = getmntent_r (file, &ent, buf, sizeof (buf))) != NULL) #else G_LOCK (getmntent); while ((mntent = getmntent (file)) != NULL) #endif { /* ignore any mnt_fsname that is repeated and begins with a '/' * * We do this to avoid being fooled by --bind mounts, since * these have the same device as the location they bind to. * It's not an ideal solution to the problem, but it's likely that * the most important mountpoint is first and the --bind ones after * that aren't as important. So it should work. * * The '/' is to handle procfs, tmpfs and other no device mounts. */ if (mntent->mnt_fsname != NULL && mntent->mnt_fsname[0] == '/' && g_hash_table_lookup (mounts_hash, mntent->mnt_fsname)) continue; mount_entry = g_new0 (GUnixMountEntry, 1); mount_entry->mount_path = g_strdup (mntent->mnt_dir); if (strcmp (mntent->mnt_fsname, "/dev/root") == 0) mount_entry->device_path = g_strdup (_resolve_dev_root ()); else mount_entry->device_path = g_strdup (mntent->mnt_fsname); mount_entry->filesystem_type = g_strdup (mntent->mnt_type); #if defined (HAVE_HASMNTOPT) if (hasmntopt (mntent, MNTOPT_RO) != NULL) mount_entry->is_read_only = TRUE; #endif mount_entry->is_system_internal = guess_system_internal (mount_entry->mount_path, mount_entry->filesystem_type, mount_entry->device_path); g_hash_table_insert (mounts_hash, mount_entry->device_path, mount_entry->device_path); return_list = g_list_prepend (return_list, mount_entry); } g_hash_table_destroy (mounts_hash); endmntent (file); #ifndef HAVE_GETMNTENT_R G_UNLOCK (getmntent); #endif return g_list_reverse (return_list); } #elif defined (HAVE_SYS_MNTTAB_H) G_LOCK_DEFINE_STATIC(getmntent); static char * get_mtab_read_file (void) { #ifdef _PATH_MOUNTED return _PATH_MOUNTED; #else return "/etc/mnttab"; #endif } static char * get_mtab_monitor_file (void) { return get_mtab_read_file (); } static GList * _g_get_unix_mounts (void) { struct mnttab mntent; FILE *file; char *read_file; GUnixMountEntry *mount_entry; GList *return_list; read_file = get_mtab_read_file (); file = setmntent (read_file, "r"); if (file == NULL) return NULL; return_list = NULL; G_LOCK (getmntent); while (! getmntent (file, &mntent)) { mount_entry = g_new0 (GUnixMountEntry, 1); mount_entry->mount_path = g_strdup (mntent.mnt_mountp); mount_entry->device_path = g_strdup (mntent.mnt_special); mount_entry->filesystem_type = g_strdup (mntent.mnt_fstype); #if defined (HAVE_HASMNTOPT) if (hasmntopt (&mntent, MNTOPT_RO) != NULL) mount_entry->is_read_only = TRUE; #endif mount_entry->is_system_internal = guess_system_internal (mount_entry->mount_path, mount_entry->filesystem_type, mount_entry->device_path); return_list = g_list_prepend (return_list, mount_entry); } endmntent (file); G_UNLOCK (getmntent); return g_list_reverse (return_list); } #elif defined(HAVE_SYS_MNTCTL_H) && defined(HAVE_SYS_VMOUNT_H) && defined(HAVE_SYS_VFS_H) static char * get_mtab_monitor_file (void) { return NULL; } static GList * _g_get_unix_mounts (void) { struct vfs_ent *fs_info; struct vmount *vmount_info; int vmount_number; unsigned int vmount_size; int current; GList *return_list; if (mntctl (MCTL_QUERY, sizeof (vmount_size), &vmount_size) != 0) { g_warning ("Unable to know the number of mounted volumes\n"); return NULL; } vmount_info = (struct vmount*)g_malloc (vmount_size); vmount_number = mntctl (MCTL_QUERY, vmount_size, vmount_info); if (vmount_info->vmt_revision != VMT_REVISION) g_warning ("Bad vmount structure revision number, want %d, got %d\n", VMT_REVISION, vmount_info->vmt_revision); if (vmount_number < 0) { g_warning ("Unable to recover mounted volumes information\n"); g_free (vmount_info); return NULL; } return_list = NULL; while (vmount_number > 0) { mount_entry = g_new0 (GUnixMountEntry, 1); mount_entry->device_path = g_strdup (vmt2dataptr (vmount_info, VMT_OBJECT)); mount_entry->mount_path = g_strdup (vmt2dataptr (vmount_info, VMT_STUB)); /* is_removable = (vmount_info->vmt_flags & MNT_REMOVABLE) ? 1 : 0; */ mount_entry->is_read_only = (vmount_info->vmt_flags & MNT_READONLY) ? 1 : 0; fs_info = getvfsbytype (vmount_info->vmt_gfstype); if (fs_info == NULL) mount_entry->filesystem_type = g_strdup ("unknown"); else mount_entry->filesystem_type = g_strdup (fs_info->vfsent_name); mount_entry->is_system_internal = guess_system_internal (mount_entry->mount_path, mount_entry->filesystem_type, mount_entry->device_path); return_list = g_list_prepend (return_list, mount_entry); vmount_info = (struct vmount *)( (char*)vmount_info + vmount_info->vmt_length); vmount_number--; } g_free (vmount_info); return g_list_reverse (return_list); } #elif defined(HAVE_GETMNTINFO) && defined(HAVE_FSTAB_H) && defined(HAVE_SYS_MOUNT_H) static char * get_mtab_monitor_file (void) { return NULL; } static GList * _g_get_unix_mounts (void) { struct statfs *mntent = NULL; int num_mounts, i; GUnixMountEntry *mount_entry; GList *return_list; /* Pass MNT_NOWAIT to avoid blocking trying to update NFS mounts. */ if ((num_mounts = getmntinfo (&mntent, MNT_NOWAIT)) == 0) return NULL; return_list = NULL; for (i = 0; i < num_mounts; i++) { mount_entry = g_new0 (GUnixMountEntry, 1); mount_entry->mount_path = g_strdup (mntent[i].f_mntonname); mount_entry->device_path = g_strdup (mntent[i].f_mntfromname); mount_entry->filesystem_type = g_strdup (mntent[i].f_fstypename); if (mntent[i].f_flags & MNT_RDONLY) mount_entry->is_read_only = TRUE; mount_entry->is_system_internal = guess_system_internal (mount_entry->mount_path, mount_entry->filesystem_type, mount_entry->device_path); return_list = g_list_prepend (return_list, mount_entry); } return g_list_reverse (return_list); } #elif defined(__INTERIX) static char * get_mtab_monitor_file (void) { return NULL; } static GList * _g_get_unix_mounts (void) { DIR *dirp; GList* return_list = NULL; char filename[9 + NAME_MAX]; dirp = opendir ("/dev/fs"); if (!dirp) { g_warning ("unable to read /dev/fs!"); return NULL; } while (1) { struct statvfs statbuf; struct dirent entry; struct dirent* result; if (readdir_r (dirp, &entry, &result) || result == NULL) break; strcpy (filename, "/dev/fs/"); strcat (filename, entry.d_name); if (statvfs (filename, &statbuf) == 0) { GUnixMountEntry* mount_entry = g_new0(GUnixMountEntry, 1); mount_entry->mount_path = g_strdup (statbuf.f_mntonname); mount_entry->device_path = g_strdup (statbuf.f_mntfromname); mount_entry->filesystem_type = g_strdup (statbuf.f_fstypename); if (statbuf.f_flag & ST_RDONLY) mount_entry->is_read_only = TRUE; return_list = g_list_prepend(return_list, mount_entry); } } return_list = g_list_reverse (return_list); closedir (dirp); return return_list; } #else #error No _g_get_unix_mounts() implementation for system #endif /* _g_get_unix_mount_points(): * read the fstab. * don't return swap and ignore mounts. */ static char * get_fstab_file (void) { #if defined(HAVE_SYS_MNTCTL_H) && defined(HAVE_SYS_VMOUNT_H) && defined(HAVE_SYS_VFS_H) /* AIX */ return "/etc/filesystems"; #elif defined(_PATH_MNTTAB) return _PATH_MNTTAB; #elif defined(VFSTAB) return VFSTAB; #else return "/etc/fstab"; #endif } #ifdef HAVE_MNTENT_H static GList * _g_get_unix_mount_points (void) { #ifdef HAVE_GETMNTENT_R struct mntent ent; char buf[1024]; #endif struct mntent *mntent; FILE *file; char *read_file; GUnixMountPoint *mount_entry; GList *return_list; read_file = get_fstab_file (); file = setmntent (read_file, "r"); if (file == NULL) return NULL; return_list = NULL; #ifdef HAVE_GETMNTENT_R while ((mntent = getmntent_r (file, &ent, buf, sizeof (buf))) != NULL) #else G_LOCK (getmntent); while ((mntent = getmntent (file)) != NULL) #endif { if ((strcmp (mntent->mnt_dir, "ignore") == 0) || (strcmp (mntent->mnt_dir, "swap") == 0)) continue; mount_entry = g_new0 (GUnixMountPoint, 1); mount_entry->mount_path = g_strdup (mntent->mnt_dir); if (strcmp (mntent->mnt_fsname, "/dev/root") == 0) mount_entry->device_path = g_strdup (_resolve_dev_root ()); else mount_entry->device_path = g_strdup (mntent->mnt_fsname); mount_entry->filesystem_type = g_strdup (mntent->mnt_type); #ifdef HAVE_HASMNTOPT if (hasmntopt (mntent, MNTOPT_RO) != NULL) mount_entry->is_read_only = TRUE; if (hasmntopt (mntent, "loop") != NULL) mount_entry->is_loopback = TRUE; #endif if ((mntent->mnt_type != NULL && strcmp ("supermount", mntent->mnt_type) == 0) #ifdef HAVE_HASMNTOPT || (hasmntopt (mntent, "user") != NULL && hasmntopt (mntent, "user") != hasmntopt (mntent, "user_xattr")) || hasmntopt (mntent, "pamconsole") != NULL || hasmntopt (mntent, "users") != NULL || hasmntopt (mntent, "owner") != NULL #endif ) mount_entry->is_user_mountable = TRUE; return_list = g_list_prepend (return_list, mount_entry); } endmntent (file); #ifndef HAVE_GETMNTENT_R G_UNLOCK (getmntent); #endif return g_list_reverse (return_list); } #elif defined (HAVE_SYS_MNTTAB_H) static GList * _g_get_unix_mount_points (void) { struct mnttab mntent; FILE *file; char *read_file; GUnixMountPoint *mount_entry; GList *return_list; read_file = get_fstab_file (); file = setmntent (read_file, "r"); if (file == NULL) return NULL; return_list = NULL; G_LOCK (getmntent); while (! getmntent (file, &mntent)) { if ((strcmp (mntent.mnt_mountp, "ignore") == 0) || (strcmp (mntent.mnt_mountp, "swap") == 0)) continue; mount_entry = g_new0 (GUnixMountPoint, 1); mount_entry->mount_path = g_strdup (mntent.mnt_mountp); mount_entry->device_path = g_strdup (mntent.mnt_special); mount_entry->filesystem_type = g_strdup (mntent.mnt_fstype); #ifdef HAVE_HASMNTOPT if (hasmntopt (&mntent, MNTOPT_RO) != NULL) mount_entry->is_read_only = TRUE; if (hasmntopt (&mntent, "lofs") != NULL) mount_entry->is_loopback = TRUE; #endif if ((mntent.mnt_fstype != NULL) #ifdef HAVE_HASMNTOPT || (hasmntopt (&mntent, "user") != NULL && hasmntopt (&mntent, "user") != hasmntopt (&mntent, "user_xattr")) || hasmntopt (&mntent, "pamconsole") != NULL || hasmntopt (&mntent, "users") != NULL || hasmntopt (&mntent, "owner") != NULL #endif ) mount_entry->is_user_mountable = TRUE; return_list = g_list_prepend (return_list, mount_entry); } endmntent (file); G_UNLOCK (getmntent); return g_list_reverse (return_list); } #elif defined(HAVE_SYS_MNTCTL_H) && defined(HAVE_SYS_VMOUNT_H) && defined(HAVE_SYS_VFS_H) /* functions to parse /etc/filesystems on aix */ /* read character, ignoring comments (begin with '*', end with '\n' */ static int aix_fs_getc (FILE *fd) { int c; while ((c = getc (fd)) == '*') { while (((c = getc (fd)) != '\n') && (c != EOF)) ; } } /* eat all continuous spaces in a file */ static int aix_fs_ignorespace (FILE *fd) { int c; while ((c = aix_fs_getc (fd)) != EOF) { if (!g_ascii_isspace (c)) { ungetc (c,fd); return c; } } return EOF; } /* read one word from file */ static int aix_fs_getword (FILE *fd, char *word) { int c; aix_fs_ignorespace (fd); while (((c = aix_fs_getc (fd)) != EOF) && !g_ascii_isspace (c)) { if (c == '"') { while (((c = aix_fs_getc (fd)) != EOF) && (c != '"')) *word++ = c; else *word++ = c; } } *word = 0; return c; } typedef struct { char mnt_mount[PATH_MAX]; char mnt_special[PATH_MAX]; char mnt_fstype[16]; char mnt_options[128]; } AixMountTableEntry; /* read mount points properties */ static int aix_fs_get (FILE *fd, AixMountTableEntry *prop) { static char word[PATH_MAX] = { 0 }; char value[PATH_MAX]; /* read stanza */ if (word[0] == 0) { if (aix_fs_getword (fd, word) == EOF) return EOF; } word[strlen(word) - 1] = 0; strcpy (prop->mnt_mount, word); /* read attributes and value */ while (aix_fs_getword (fd, word) != EOF) { /* test if is attribute or new stanza */ if (word[strlen(word) - 1] == ':') return 0; /* read "=" */ aix_fs_getword (fd, value); /* read value */ aix_fs_getword (fd, value); if (strcmp (word, "dev") == 0) strcpy (prop->mnt_special, value); else if (strcmp (word, "vfs") == 0) strcpy (prop->mnt_fstype, value); else if (strcmp (word, "options") == 0) strcpy(prop->mnt_options, value); } return 0; } static GList * _g_get_unix_mount_points (void) { struct mntent *mntent; FILE *file; char *read_file; GUnixMountPoint *mount_entry; AixMountTableEntry mntent; GList *return_list; read_file = get_fstab_file (); file = setmntent (read_file, "r"); if (file == NULL) return NULL; return_list = NULL; while (!aix_fs_get (file, &mntent)) { if (strcmp ("cdrfs", mntent.mnt_fstype) == 0) { mount_entry = g_new0 (GUnixMountPoint, 1); mount_entry->mount_path = g_strdup (mntent.mnt_mount); mount_entry->device_path = g_strdup (mntent.mnt_special); mount_entry->filesystem_type = g_strdup (mntent.mnt_fstype); mount_entry->is_read_only = TRUE; mount_entry->is_user_mountable = TRUE; return_list = g_list_prepend (return_list, mount_entry); } } endmntent (file); return g_list_reverse (return_list); } #elif defined(HAVE_GETMNTINFO) && defined(HAVE_FSTAB_H) && defined(HAVE_SYS_MOUNT_H) static GList * _g_get_unix_mount_points (void) { struct fstab *fstab = NULL; GUnixMountPoint *mount_entry; GList *return_list; #ifdef HAVE_SYS_SYSCTL_H int usermnt = 0; size_t len = sizeof(usermnt); struct stat sb; #endif if (!setfsent ()) return NULL; return_list = NULL; #ifdef HAVE_SYS_SYSCTL_H #if defined(HAVE_SYSCTLBYNAME) sysctlbyname ("vfs.usermount", &usermnt, &len, NULL, 0); #elif defined(CTL_VFS) && defined(VFS_USERMOUNT) { int mib[2]; mib[0] = CTL_VFS; mib[1] = VFS_USERMOUNT; sysctl (mib, 2, &usermnt, &len, NULL, 0); } #elif defined(CTL_KERN) && defined(KERN_USERMOUNT) { int mib[2]; mib[0] = CTL_KERN; mib[1] = KERN_USERMOUNT; sysctl (mib, 2, &usermnt, &len, NULL, 0); } #endif #endif while ((fstab = getfsent ()) != NULL) { if (strcmp (fstab->fs_vfstype, "swap") == 0) continue; mount_entry = g_new0 (GUnixMountPoint, 1); mount_entry->mount_path = g_strdup (fstab->fs_file); mount_entry->device_path = g_strdup (fstab->fs_spec); mount_entry->filesystem_type = g_strdup (fstab->fs_vfstype); if (strcmp (fstab->fs_type, "ro") == 0) mount_entry->is_read_only = TRUE; #ifdef HAVE_SYS_SYSCTL_H if (usermnt != 0) { uid_t uid = getuid (); if (stat (fstab->fs_file, &sb) == 0) { if (uid == 0 || sb.st_uid == uid) mount_entry->is_user_mountable = TRUE; } } #endif return_list = g_list_prepend (return_list, mount_entry); } endfsent (); return g_list_reverse (return_list); } #elif defined(__INTERIX) static GList * _g_get_unix_mount_points (void) { return _g_get_unix_mounts (); } #else #error No g_get_mount_table() implementation for system #endif static guint64 get_mounts_timestamp (void) { const char *monitor_file; struct stat buf; monitor_file = get_mtab_monitor_file (); if (monitor_file) { if (stat (monitor_file, &buf) == 0) return (guint64)buf.st_mtime; } return 0; } static guint64 get_mount_points_timestamp (void) { const char *monitor_file; struct stat buf; monitor_file = get_fstab_file (); if (monitor_file) { if (stat (monitor_file, &buf) == 0) return (guint64)buf.st_mtime; } return 0; } /** * g_unix_mounts_get: * @time_read: guint64 to contain a timestamp. * * Gets a #GList of strings containing the unix mounts. * If @time_read is set, it will be filled with the mount * timestamp, allowing for checking if the mounts have changed * with g_unix_mounts_changed_since(). * * Returns: a #GList of the UNIX mounts. **/ GList * g_unix_mounts_get (guint64 *time_read) { if (time_read) *time_read = get_mounts_timestamp (); return _g_get_unix_mounts (); } /** * g_unix_mount_at: * @mount_path: path for a possible unix mount. * @time_read: guint64 to contain a timestamp. * * Gets a #GUnixMountEntry for a given mount path. If @time_read * is set, it will be filled with a unix timestamp for checking * if the mounts have changed since with g_unix_mounts_changed_since(). * * Returns: a #GUnixMount. **/ GUnixMountEntry * g_unix_mount_at (const char *mount_path, guint64 *time_read) { GList *mounts, *l; GUnixMountEntry *mount_entry, *found; mounts = g_unix_mounts_get (time_read); found = NULL; for (l = mounts; l != NULL; l = l->next) { mount_entry = l->data; if (!found && strcmp (mount_path, mount_entry->mount_path) == 0) found = mount_entry; else g_unix_mount_free (mount_entry); } g_list_free (mounts); return found; } /** * g_unix_mount_points_get: * @time_read: guint64 to contain a timestamp. * * Gets a #GList of strings containing the unix mount points. * If @time_read is set, it will be filled with the mount timestamp, * allowing for checking if the mounts have changed with * g_unix_mounts_points_changed_since(). * * Returns: a #GList of the UNIX mountpoints. **/ GList * g_unix_mount_points_get (guint64 *time_read) { if (time_read) *time_read = get_mount_points_timestamp (); return _g_get_unix_mount_points (); } /** * g_unix_mounts_changed_since: * @time: guint64 to contain a timestamp. * * Checks if the unix mounts have changed since a given unix time. * * Returns: %TRUE if the mounts have changed since @time. **/ gboolean g_unix_mounts_changed_since (guint64 time) { return get_mounts_timestamp () != time; } /** * g_unix_mount_points_changed_since: * @time: guint64 to contain a timestamp. * * Checks if the unix mount points have changed since a given unix time. * * Returns: %TRUE if the mount points have changed since @time. **/ gboolean g_unix_mount_points_changed_since (guint64 time) { return get_mount_points_timestamp () != time; } static void g_unix_mount_monitor_finalize (GObject *object) { GUnixMountMonitor *monitor; monitor = G_UNIX_MOUNT_MONITOR (object); if (monitor->fstab_monitor) { g_file_monitor_cancel (monitor->fstab_monitor); g_object_unref (monitor->fstab_monitor); } if (monitor->mtab_monitor) { g_file_monitor_cancel (monitor->mtab_monitor); g_object_unref (monitor->mtab_monitor); } the_mount_monitor = NULL; G_OBJECT_CLASS (g_unix_mount_monitor_parent_class)->finalize (object); } static void g_unix_mount_monitor_class_init (GUnixMountMonitorClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); gobject_class->finalize = g_unix_mount_monitor_finalize; /** * GUnixMountMonitor::mounts-changed: * @monitor: the object on which the signal is emitted * * Emitted when the unix mounts have changed. */ signals[MOUNTS_CHANGED] = g_signal_new ("mounts-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * GUnixMountMonitor::mountpoints-changed: * @monitor: the object on which the signal is emitted * * Emitted when the unix mount points have changed. */ signals[MOUNTPOINTS_CHANGED] = g_signal_new ("mountpoints-changed", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static void fstab_file_changed (GFileMonitor *monitor, GFile *file, GFile *other_file, GFileMonitorEvent event_type, gpointer user_data) { GUnixMountMonitor *mount_monitor; if (event_type != G_FILE_MONITOR_EVENT_CHANGED && event_type != G_FILE_MONITOR_EVENT_CREATED && event_type != G_FILE_MONITOR_EVENT_DELETED) return; mount_monitor = user_data; g_signal_emit (mount_monitor, signals[MOUNTPOINTS_CHANGED], 0); } static void mtab_file_changed (GFileMonitor *monitor, GFile *file, GFile *other_file, GFileMonitorEvent event_type, gpointer user_data) { GUnixMountMonitor *mount_monitor; if (event_type != G_FILE_MONITOR_EVENT_CHANGED && event_type != G_FILE_MONITOR_EVENT_CREATED && event_type != G_FILE_MONITOR_EVENT_DELETED) return; mount_monitor = user_data; g_signal_emit (mount_monitor, signals[MOUNTS_CHANGED], 0); } static void g_unix_mount_monitor_init (GUnixMountMonitor *monitor) { GFile *file; if (get_fstab_file () != NULL) { file = g_file_new_for_path (get_fstab_file ()); monitor->fstab_monitor = g_file_monitor_file (file, 0, NULL, NULL); g_object_unref (file); g_signal_connect (monitor->fstab_monitor, "changed", (GCallback)fstab_file_changed, monitor); } if (get_mtab_monitor_file () != NULL) { file = g_file_new_for_path (get_mtab_monitor_file ()); monitor->mtab_monitor = g_file_monitor_file (file, 0, NULL, NULL); g_object_unref (file); g_signal_connect (monitor->mtab_monitor, "changed", (GCallback)mtab_file_changed, monitor); } } /** * g_unix_mount_monitor_set_rate_limit: * @mount_monitor: a #GUnixMountMonitor * @limit_msec: a integer with the limit in milliseconds to * poll for changes. * * Sets the rate limit to which the @mount_monitor will report * consecutive change events to the mount and mount point entry files. * * Since: 2.18 */ void g_unix_mount_monitor_set_rate_limit (GUnixMountMonitor *mount_monitor, gint limit_msec) { g_return_if_fail (G_IS_UNIX_MOUNT_MONITOR (mount_monitor)); if (mount_monitor->fstab_monitor != NULL) g_file_monitor_set_rate_limit (mount_monitor->fstab_monitor, limit_msec); if (mount_monitor->mtab_monitor != NULL) g_file_monitor_set_rate_limit (mount_monitor->mtab_monitor, limit_msec); } /** * g_unix_mount_monitor_new: * * Gets a new #GUnixMountMonitor. The default rate limit for which the * monitor will report consecutive changes for the mount and mount * point entry files is the default for a #GFileMonitor. Use * g_unix_mount_monitor_set_rate_limit() to change this. * * Returns: a #GUnixMountMonitor. */ GUnixMountMonitor * g_unix_mount_monitor_new (void) { if (the_mount_monitor == NULL) { the_mount_monitor = g_object_new (G_TYPE_UNIX_MOUNT_MONITOR, NULL); return the_mount_monitor; } return g_object_ref (the_mount_monitor); } /** * g_unix_mount_free: * @mount_entry: a #GUnixMount. * * Frees a unix mount. */ void g_unix_mount_free (GUnixMountEntry *mount_entry) { g_return_if_fail (mount_entry != NULL); g_free (mount_entry->mount_path); g_free (mount_entry->device_path); g_free (mount_entry->filesystem_type); g_free (mount_entry); } /** * g_unix_mount_point_free: * @mount_point: unix mount point to free. * * Frees a unix mount point. */ void g_unix_mount_point_free (GUnixMountPoint *mount_point) { g_return_if_fail (mount_point != NULL); g_free (mount_point->mount_path); g_free (mount_point->device_path); g_free (mount_point->filesystem_type); g_free (mount_point); } /** * g_unix_mount_compare: * @mount1: first #GUnixMountEntry to compare. * @mount2: second #GUnixMountEntry to compare. * * Compares two unix mounts. * * Returns: 1, 0 or -1 if @mount1 is greater than, equal to, * or less than @mount2, respectively. */ gint g_unix_mount_compare (GUnixMountEntry *mount1, GUnixMountEntry *mount2) { int res; g_return_val_if_fail (mount1 != NULL && mount2 != NULL, 0); res = g_strcmp0 (mount1->mount_path, mount2->mount_path); if (res != 0) return res; res = g_strcmp0 (mount1->device_path, mount2->device_path); if (res != 0) return res; res = g_strcmp0 (mount1->filesystem_type, mount2->filesystem_type); if (res != 0) return res; res = mount1->is_read_only - mount2->is_read_only; if (res != 0) return res; return 0; } /** * g_unix_mount_get_mount_path: * @mount_entry: input #GUnixMountEntry to get the mount path for. * * Gets the mount path for a unix mount. * * Returns: the mount path for @mount_entry. */ const gchar * g_unix_mount_get_mount_path (GUnixMountEntry *mount_entry) { g_return_val_if_fail (mount_entry != NULL, NULL); return mount_entry->mount_path; } /** * g_unix_mount_get_device_path: * @mount_entry: a #GUnixMount. * * Gets the device path for a unix mount. * * Returns: a string containing the device path. */ const gchar * g_unix_mount_get_device_path (GUnixMountEntry *mount_entry) { g_return_val_if_fail (mount_entry != NULL, NULL); return mount_entry->device_path; } /** * g_unix_mount_get_fs_type: * @mount_entry: a #GUnixMount. * * Gets the filesystem type for the unix mount. * * Returns: a string containing the file system type. */ const gchar * g_unix_mount_get_fs_type (GUnixMountEntry *mount_entry) { g_return_val_if_fail (mount_entry != NULL, NULL); return mount_entry->filesystem_type; } /** * g_unix_mount_is_readonly: * @mount_entry: a #GUnixMount. * * Checks if a unix mount is mounted read only. * * Returns: %TRUE if @mount_entry is read only. */ gboolean g_unix_mount_is_readonly (GUnixMountEntry *mount_entry) { g_return_val_if_fail (mount_entry != NULL, FALSE); return mount_entry->is_read_only; } /** * g_unix_mount_is_system_internal: * @mount_entry: a #GUnixMount. * * Checks if a unix mount is a system path. * * Returns: %TRUE if the unix mount is for a system path. */ gboolean g_unix_mount_is_system_internal (GUnixMountEntry *mount_entry) { g_return_val_if_fail (mount_entry != NULL, FALSE); return mount_entry->is_system_internal; } /** * g_unix_mount_point_compare: * @mount1: a #GUnixMount. * @mount2: a #GUnixMount. * * Compares two unix mount points. * * Returns: 1, 0 or -1 if @mount1 is greater than, equal to, * or less than @mount2, respectively. */ gint g_unix_mount_point_compare (GUnixMountPoint *mount1, GUnixMountPoint *mount2) { int res; g_return_val_if_fail (mount1 != NULL && mount2 != NULL, 0); res = g_strcmp0 (mount1->mount_path, mount2->mount_path); if (res != 0) return res; res = g_strcmp0 (mount1->device_path, mount2->device_path); if (res != 0) return res; res = g_strcmp0 (mount1->filesystem_type, mount2->filesystem_type); if (res != 0) return res; res = mount1->is_read_only - mount2->is_read_only; if (res != 0) return res; res = mount1->is_user_mountable - mount2->is_user_mountable; if (res != 0) return res; res = mount1->is_loopback - mount2->is_loopback; if (res != 0) return res; return 0; } /** * g_unix_mount_point_get_mount_path: * @mount_point: a #GUnixMountPoint. * * Gets the mount path for a unix mount point. * * Returns: a string containing the mount path. */ const gchar * g_unix_mount_point_get_mount_path (GUnixMountPoint *mount_point) { g_return_val_if_fail (mount_point != NULL, NULL); return mount_point->mount_path; } /** * g_unix_mount_point_get_device_path: * @mount_point: a #GUnixMountPoint. * * Gets the device path for a unix mount point. * * Returns: a string containing the device path. */ const gchar * g_unix_mount_point_get_device_path (GUnixMountPoint *mount_point) { g_return_val_if_fail (mount_point != NULL, NULL); return mount_point->device_path; } /** * g_unix_mount_point_get_fs_type: * @mount_point: a #GUnixMountPoint. * * Gets the file system type for the mount point. * * Returns: a string containing the file system type. */ const gchar * g_unix_mount_point_get_fs_type (GUnixMountPoint *mount_point) { g_return_val_if_fail (mount_point != NULL, NULL); return mount_point->filesystem_type; } /** * g_unix_mount_point_is_readonly: * @mount_point: a #GUnixMountPoint. * * Checks if a unix mount point is read only. * * Returns: %TRUE if a mount point is read only. */ gboolean g_unix_mount_point_is_readonly (GUnixMountPoint *mount_point) { g_return_val_if_fail (mount_point != NULL, FALSE); return mount_point->is_read_only; } /** * g_unix_mount_point_is_user_mountable: * @mount_point: a #GUnixMountPoint. * * Checks if a unix mount point is mountable by the user. * * Returns: %TRUE if the mount point is user mountable. */ gboolean g_unix_mount_point_is_user_mountable (GUnixMountPoint *mount_point) { g_return_val_if_fail (mount_point != NULL, FALSE); return mount_point->is_user_mountable; } /** * g_unix_mount_point_is_loopback: * @mount_point: a #GUnixMountPoint. * * Checks if a unix mount point is a loopback device. * * Returns: %TRUE if the mount point is a loopback. %FALSE otherwise. */ gboolean g_unix_mount_point_is_loopback (GUnixMountPoint *mount_point) { g_return_val_if_fail (mount_point != NULL, FALSE); return mount_point->is_loopback; } static GUnixMountType guess_mount_type (const char *mount_path, const char *device_path, const char *filesystem_type) { GUnixMountType type; char *basename; type = G_UNIX_MOUNT_TYPE_UNKNOWN; if ((strcmp (filesystem_type, "udf") == 0) || (strcmp (filesystem_type, "iso9660") == 0) || (strcmp (filesystem_type, "cd9660") == 0)) type = G_UNIX_MOUNT_TYPE_CDROM; else if ((strcmp (filesystem_type, "nfs") == 0) || (strcmp (filesystem_type, "nfs4") == 0)) type = G_UNIX_MOUNT_TYPE_NFS; else if (g_str_has_prefix (device_path, "/vol/dev/diskette/") || g_str_has_prefix (device_path, "/dev/fd") || g_str_has_prefix (device_path, "/dev/floppy")) type = G_UNIX_MOUNT_TYPE_FLOPPY; else if (g_str_has_prefix (device_path, "/dev/cdrom") || g_str_has_prefix (device_path, "/dev/acd") || g_str_has_prefix (device_path, "/dev/cd")) type = G_UNIX_MOUNT_TYPE_CDROM; else if (g_str_has_prefix (device_path, "/vol/")) { const char *name = mount_path + strlen ("/"); if (g_str_has_prefix (name, "cdrom")) type = G_UNIX_MOUNT_TYPE_CDROM; else if (g_str_has_prefix (name, "floppy") || g_str_has_prefix (device_path, "/vol/dev/diskette/")) type = G_UNIX_MOUNT_TYPE_FLOPPY; else if (g_str_has_prefix (name, "rmdisk")) type = G_UNIX_MOUNT_TYPE_ZIP; else if (g_str_has_prefix (name, "jaz")) type = G_UNIX_MOUNT_TYPE_JAZ; else if (g_str_has_prefix (name, "memstick")) type = G_UNIX_MOUNT_TYPE_MEMSTICK; } else { basename = g_path_get_basename (mount_path); if (g_str_has_prefix (basename, "cdr") || g_str_has_prefix (basename, "cdwriter") || g_str_has_prefix (basename, "burn") || g_str_has_prefix (basename, "dvdr")) type = G_UNIX_MOUNT_TYPE_CDROM; else if (g_str_has_prefix (basename, "floppy")) type = G_UNIX_MOUNT_TYPE_FLOPPY; else if (g_str_has_prefix (basename, "zip")) type = G_UNIX_MOUNT_TYPE_ZIP; else if (g_str_has_prefix (basename, "jaz")) type = G_UNIX_MOUNT_TYPE_JAZ; else if (g_str_has_prefix (basename, "camera")) type = G_UNIX_MOUNT_TYPE_CAMERA; else if (g_str_has_prefix (basename, "memstick") || g_str_has_prefix (basename, "memory_stick") || g_str_has_prefix (basename, "ram")) type = G_UNIX_MOUNT_TYPE_MEMSTICK; else if (g_str_has_prefix (basename, "compact_flash")) type = G_UNIX_MOUNT_TYPE_CF; else if (g_str_has_prefix (basename, "smart_media")) type = G_UNIX_MOUNT_TYPE_SM; else if (g_str_has_prefix (basename, "sd_mmc")) type = G_UNIX_MOUNT_TYPE_SDMMC; else if (g_str_has_prefix (basename, "ipod")) type = G_UNIX_MOUNT_TYPE_IPOD; g_free (basename); } if (type == G_UNIX_MOUNT_TYPE_UNKNOWN) type = G_UNIX_MOUNT_TYPE_HD; return type; } /* * g_unix_mount_guess_type: * @mount_entry: a #GUnixMount. * * Guesses the type of a unix mount. If the mount type cannot be * determined, returns %G_UNIX_MOUNT_TYPE_UNKNOWN. * * Returns: a #GUnixMountType. */ static GUnixMountType g_unix_mount_guess_type (GUnixMountEntry *mount_entry) { g_return_val_if_fail (mount_entry != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); g_return_val_if_fail (mount_entry->mount_path != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); g_return_val_if_fail (mount_entry->device_path != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); g_return_val_if_fail (mount_entry->filesystem_type != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); return guess_mount_type (mount_entry->mount_path, mount_entry->device_path, mount_entry->filesystem_type); } /* * g_unix_mount_point_guess_type: * @mount_point: a #GUnixMountPoint. * * Guesses the type of a unix mount point. * If the mount type cannot be determined, * returns %G_UNIX_MOUNT_TYPE_UNKNOWN. * * Returns: a #GUnixMountType. */ static GUnixMountType g_unix_mount_point_guess_type (GUnixMountPoint *mount_point) { g_return_val_if_fail (mount_point != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); g_return_val_if_fail (mount_point->mount_path != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); g_return_val_if_fail (mount_point->device_path != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); g_return_val_if_fail (mount_point->filesystem_type != NULL, G_UNIX_MOUNT_TYPE_UNKNOWN); return guess_mount_type (mount_point->mount_path, mount_point->device_path, mount_point->filesystem_type); } static const char * type_to_icon (GUnixMountType type, gboolean is_mount_point) { const char *icon_name; switch (type) { case G_UNIX_MOUNT_TYPE_HD: if (is_mount_point) icon_name = "drive-removable-media"; else icon_name = "drive-harddisk"; break; case G_UNIX_MOUNT_TYPE_FLOPPY: case G_UNIX_MOUNT_TYPE_ZIP: case G_UNIX_MOUNT_TYPE_JAZ: if (is_mount_point) icon_name = "drive-removable-media"; else icon_name = "media-floppy"; break; case G_UNIX_MOUNT_TYPE_CDROM: if (is_mount_point) icon_name = "drive-optical"; else icon_name = "media-optical"; break; case G_UNIX_MOUNT_TYPE_NFS: /* TODO: Would like a better icon here... */ if (is_mount_point) icon_name = "drive-removable-media"; else icon_name = "drive-harddisk"; break; case G_UNIX_MOUNT_TYPE_MEMSTICK: if (is_mount_point) icon_name = "drive-removable-media"; else icon_name = "media-flash"; break; case G_UNIX_MOUNT_TYPE_CAMERA: if (is_mount_point) icon_name = "drive-removable-media"; else icon_name = "camera-photo"; break; case G_UNIX_MOUNT_TYPE_IPOD: if (is_mount_point) icon_name = "drive-removable-media"; else icon_name = "multimedia-player"; break; case G_UNIX_MOUNT_TYPE_UNKNOWN: default: if (is_mount_point) icon_name = "drive-removable-media"; else icon_name = "drive-harddisk"; break; } return icon_name; } /** * g_unix_mount_guess_name: * @mount_entry: a #GUnixMountEntry * * Guesses the name of a Unix mount. * The result is a translated string. * * Returns: A newly allocated string that must * be freed with g_free() */ gchar * g_unix_mount_guess_name (GUnixMountEntry *mount_entry) { char *name; if (strcmp (mount_entry->mount_path, "/") == 0) name = g_strdup (_("Filesystem root")); else name = g_filename_display_basename (mount_entry->mount_path); return name; } /** * g_unix_mount_guess_icon: * @mount_entry: a #GUnixMountEntry * * Guesses the icon of a Unix mount. * * Returns: a #GIcon */ GIcon * g_unix_mount_guess_icon (GUnixMountEntry *mount_entry) { return g_themed_icon_new_with_default_fallbacks (type_to_icon (g_unix_mount_guess_type (mount_entry), FALSE)); } /** * g_unix_mount_point_guess_name: * @mount_point: a #GUnixMountPoint * * Guesses the name of a Unix mount point. * The result is a translated string. * * Returns: A newly allocated string that must * be freed with g_free() */ gchar * g_unix_mount_point_guess_name (GUnixMountPoint *mount_point) { char *name; if (strcmp (mount_point->mount_path, "/") == 0) name = g_strdup (_("Filesystem root")); else name = g_filename_display_basename (mount_point->mount_path); return name; } /** * g_unix_mount_point_guess_icon: * @mount_point: a #GUnixMountPoint * * Guesses the icon of a Unix mount point. * * Returns: a #GIcon */ GIcon * g_unix_mount_point_guess_icon (GUnixMountPoint *mount_point) { return g_themed_icon_new_with_default_fallbacks (type_to_icon (g_unix_mount_point_guess_type (mount_point), TRUE)); } /** * g_unix_mount_guess_can_eject: * @mount_entry: a #GUnixMountEntry * * Guesses whether a Unix mount can be ejected. * * Returns: %TRUE if @mount_entry is deemed to be ejectable. */ gboolean g_unix_mount_guess_can_eject (GUnixMountEntry *mount_entry) { GUnixMountType guessed_type; guessed_type = g_unix_mount_guess_type (mount_entry); if (guessed_type == G_UNIX_MOUNT_TYPE_IPOD || guessed_type == G_UNIX_MOUNT_TYPE_CDROM) return TRUE; return FALSE; } /** * g_unix_mount_guess_should_display: * @mount_entry: a #GUnixMountEntry * * Guesses whether a Unix mount should be displayed in the UI. * * Returns: %TRUE if @mount_entry is deemed to be displayable. */ gboolean g_unix_mount_guess_should_display (GUnixMountEntry *mount_entry) { const char *mount_path; /* Never display internal mountpoints */ if (g_unix_mount_is_system_internal (mount_entry)) return FALSE; /* Only display things in /media (which are generally user mountable) and home dir (fuse stuff) */ mount_path = mount_entry->mount_path; if (mount_path != NULL) { if (g_str_has_prefix (mount_path, "/media/")) { char *path; /* Avoid displaying mounts that are not accessible to the user. * * See http://bugzilla.gnome.org/show_bug.cgi?id=526320 for why we * want to avoid g_access() for mount points which can potentially * block or fail stat()'ing, such as network mounts. */ path = g_path_get_dirname (mount_path); if (g_str_has_prefix (path, "/media/")) { if (g_access (path, R_OK|X_OK) != 0) { g_free (path); return FALSE; } } g_free (path); if (mount_entry->device_path && mount_entry->device_path[0] == '/') { struct stat st; if (g_stat (mount_entry->device_path, &st) == 0 && S_ISBLK(st.st_mode) && g_access (mount_path, R_OK|X_OK) != 0) return FALSE; } return TRUE; } if (g_str_has_prefix (mount_path, g_get_home_dir ()) && mount_path[strlen (g_get_home_dir())] == G_DIR_SEPARATOR) return TRUE; } return FALSE; } /** * g_unix_mount_point_guess_can_eject: * @mount_point: a #GUnixMountPoint * * Guesses whether a Unix mount point can be ejected. * * Returns: %TRUE if @mount_point is deemed to be ejectable. */ gboolean g_unix_mount_point_guess_can_eject (GUnixMountPoint *mount_point) { GUnixMountType guessed_type; guessed_type = g_unix_mount_point_guess_type (mount_point); if (guessed_type == G_UNIX_MOUNT_TYPE_IPOD || guessed_type == G_UNIX_MOUNT_TYPE_CDROM) return TRUE; return FALSE; } /* borrowed from gtk/gtkfilesystemunix.c in GTK+ on 02/23/2006 */ static void _canonicalize_filename (gchar *filename) { gchar *p, *q; gboolean last_was_slash = FALSE; p = filename; q = filename; while (*p) { if (*p == G_DIR_SEPARATOR) { if (!last_was_slash) *q++ = G_DIR_SEPARATOR; last_was_slash = TRUE; } else { if (last_was_slash && *p == '.') { if (*(p + 1) == G_DIR_SEPARATOR || *(p + 1) == '\0') { if (*(p + 1) == '\0') break; p += 1; } else if (*(p + 1) == '.' && (*(p + 2) == G_DIR_SEPARATOR || *(p + 2) == '\0')) { if (q > filename + 1) { q--; while (q > filename + 1 && *(q - 1) != G_DIR_SEPARATOR) q--; } if (*(p + 2) == '\0') break; p += 2; } else { *q++ = *p; last_was_slash = FALSE; } } else { *q++ = *p; last_was_slash = FALSE; } } p++; } if (q > filename + 1 && *(q - 1) == G_DIR_SEPARATOR) q--; *q = '\0'; } static char * _resolve_symlink (const char *file) { GError *error; char *dir; char *link; char *f; char *f1; f = g_strdup (file); while (g_file_test (f, G_FILE_TEST_IS_SYMLINK)) { link = g_file_read_link (f, &error); if (link == NULL) { g_error_free (error); g_free (f); f = NULL; goto out; } dir = g_path_get_dirname (f); f1 = g_strdup_printf ("%s/%s", dir, link); g_free (dir); g_free (link); g_free (f); f = f1; } out: if (f != NULL) _canonicalize_filename (f); return f; } #ifdef HAVE_MNTENT_H static const char * _resolve_dev_root (void) { static gboolean have_real_dev_root = FALSE; static char real_dev_root[256]; struct stat statbuf; /* see if it's cached already */ if (have_real_dev_root) goto found; /* otherwise we're going to find it right away.. */ have_real_dev_root = TRUE; if (stat ("/dev/root", &statbuf) == 0) { if (! S_ISLNK (statbuf.st_mode)) { dev_t root_dev = statbuf.st_dev; FILE *f; char buf[1024]; /* see if device with similar major:minor as /dev/root is mention * in /etc/mtab (it usually is) */ f = fopen ("/etc/mtab", "r"); if (f != NULL) { struct mntent *entp; #ifdef HAVE_GETMNTENT_R struct mntent ent; while ((entp = getmntent_r (f, &ent, buf, sizeof (buf))) != NULL) { #else G_LOCK (getmntent); while ((entp = getmntent (f)) != NULL) { #endif if (stat (entp->mnt_fsname, &statbuf) == 0 && statbuf.st_dev == root_dev) { strncpy (real_dev_root, entp->mnt_fsname, sizeof (real_dev_root) - 1); real_dev_root[sizeof (real_dev_root) - 1] = '\0'; fclose (f); goto found; } } endmntent (f); #ifndef HAVE_GETMNTENT_R G_UNLOCK (getmntent); #endif } /* no, that didn't work.. next we could scan /dev ... but I digress.. */ } else { char *resolved; resolved = _resolve_symlink ("/dev/root"); if (resolved != NULL) { strncpy (real_dev_root, resolved, sizeof (real_dev_root) - 1); real_dev_root[sizeof (real_dev_root) - 1] = '\0'; g_free (resolved); goto found; } } } /* bah sucks.. */ strcpy (real_dev_root, "/dev/root"); found: return real_dev_root; } #endif #define __G_UNIX_MOUNTS_C__ #include "gioaliasdef.c"