gboolean
gsd_should_ignore_unix_mount (GUnixMountEntry *mount)
{
const char *fs, *device;
guint i;
/* This is borrowed from GLib and used as a way to determine
* which mounts we should ignore by default. GLib doesn't
* expose this in a way that allows it to be used for this
* purpose
*/
/* We also ignore network filesystems */
const gchar *ignore_fs[] = {
"adfs",
"afs",
"auto",
"autofs",
"autofs4",
"cgroup",
"cifs",
"configfs",
"cxfs",
"debugfs",
"devfs",
"devpts",
"devtmpfs",
"ecryptfs",
"fdescfs",
"fusectl",
"gfs",
"gfs2",
"gpfs",
"hugetlbfs",
"kernfs",
"linprocfs",
"linsysfs",
"lustre",
"lustre_lite",
"mfs",
"mqueue",
"ncpfs",
"nfs",
"nfs4",
"nfsd",
"nullfs",
"ocfs2",
"overlay",
"proc",
"procfs",
"pstore",
"ptyfs",
"rootfs",
"rpc_pipefs",
"securityfs",
"selinuxfs",
"smbfs",
"sysfs",
"tmpfs",
"usbfs",
"zfs",
NULL
};
const gchar *ignore_devices[] = {
"none",
"sunrpc",
"devpts",
"nfsd",
"/dev/loop",
"/dev/vn",
NULL
};
fs = g_unix_mount_get_fs_type (mount);
device = g_unix_mount_get_device_path (mount);
for (i = 0; ignore_fs[i] != NULL; i++)
if (g_str_equal (ignore_fs[i], fs))
return TRUE;
for (i = 0; ignore_devices[i] != NULL; i++)
if (g_str_equal (ignore_devices[i], device))
return TRUE;
return FALSE;
}
static VALUE
unixmount_get_device_path(VALUE self)
{
return CSTR2RVAL(g_unix_mount_get_device_path(_SELF(self)));
}
static gboolean
ldsm_mount_should_ignore (GUnixMountEntry *mount)
{
const gchar *fs, *device, *path;
path = g_unix_mount_get_mount_path (mount);
if (ldsm_mount_is_user_ignore (path))
return TRUE;
/* This is borrowed from GLib and used as a way to determine
* which mounts we should ignore by default. GLib doesn't
* expose this in a way that allows it to be used for this
* purpose
*/
/* We also ignore network filesystems */
const gchar *ignore_fs[] = {
"adfs",
"afs",
"auto",
"autofs",
"autofs4",
"cifs",
"cxfs",
"devfs",
"devpts",
"ecryptfs",
"fdescfs",
"gfs",
"gfs2",
"kernfs",
"linprocfs",
"linsysfs",
"lustre",
"lustre_lite",
"ncpfs",
"nfs",
"nfs4",
"nfsd",
"ocfs2",
"proc",
"procfs",
"ptyfs",
"rpc_pipefs",
"selinuxfs",
"smbfs",
"sysfs",
"tmpfs",
"usbfs",
"zfs",
NULL
};
const gchar *ignore_devices[] = {
"none",
"sunrpc",
"devpts",
"nfsd",
"/dev/loop",
"/dev/vn",
NULL
};
fs = g_unix_mount_get_fs_type (mount);
device = g_unix_mount_get_device_path (mount);
if (is_in (fs, ignore_fs))
return TRUE;
if (is_in (device, ignore_devices))
return TRUE;
return FALSE;
}
static RmMountEntries *rm_mount_list_open(RmMountTable *table) {
RmMountEntries *self = g_slice_new(RmMountEntries);
self->mnt_entries = g_unix_mounts_get(NULL);
self->entries = NULL;
self->current = NULL;
for(GList *iter = self->mnt_entries; iter; iter = iter->next) {
RmMountEntry *wrap_entry = g_slice_new(RmMountEntry);
GUnixMountEntry *entry = iter->data;
wrap_entry->fsname = g_strdup(g_unix_mount_get_device_path(entry));
wrap_entry->dir = g_strdup(g_unix_mount_get_mount_path(entry));
wrap_entry->type = g_strdup(g_unix_mount_get_fs_type(entry));
self->entries = g_list_prepend(self->entries, wrap_entry);
}
RmMountEntry *wrap_entry = NULL;
while((wrap_entry = rm_mount_list_next(self))) {
/* bindfs mounts mirror directory trees.
* This cannot be detected properly by rmlint since
* files in it have the same inode as their unmirrored file, but
* a different dev_t.
*
* Also ignore kernel filesystems.
*
* So better go and ignore it.
*/
static struct RmEvilFs {
/* fsname as show by `mount` */
const char *name;
/* Wether to warn about the exclusion on this */
bool unusual;
} evilfs_types[] = {{"bindfs", 1},
{"nullfs", 1},
/* Ignore the usual linux file system spam */
{"proc", 0},
{"cgroup", 0},
{"configfs", 0},
{"sys", 0},
{"devtmpfs", 0},
{"debugfs", 0},
{NULL, 0}};
/* btrfs and ocfs2 filesystems support reflinks for deduplication */
static const char *reflinkfs_types[] = {"btrfs", "ocfs2", NULL};
const struct RmEvilFs *evilfs_found = NULL;
for(int i = 0; evilfs_types[i].name && !evilfs_found; ++i) {
if(strcmp(evilfs_types[i].name, wrap_entry->type) == 0) {
evilfs_found = &evilfs_types[i];
}
}
const char *reflinkfs_found = NULL;
for(int i = 0; reflinkfs_types[i] && !reflinkfs_found; ++i) {
if(strcmp(reflinkfs_types[i], wrap_entry->type) == 0) {
reflinkfs_found = reflinkfs_types[i];
break;
}
}
if(evilfs_found != NULL) {
RmStat dir_stat;
rm_sys_stat(wrap_entry->dir, &dir_stat);
g_hash_table_insert(table->evilfs_table,
GUINT_TO_POINTER(dir_stat.st_dev),
GUINT_TO_POINTER(1));
GLogLevelFlags log_level = G_LOG_LEVEL_DEBUG;
if(evilfs_found->unusual) {
log_level = G_LOG_LEVEL_WARNING;
rm_log_warning_prefix();
} else {
rm_log_debug_prefix();
}
g_log("rmlint", log_level,
_("`%s` mount detected at %s (#%u); Ignoring all files in it.\n"),
evilfs_found->name, wrap_entry->dir, (unsigned)dir_stat.st_dev);
}
rm_log_debug_line("Filesystem %s: %s", wrap_entry->dir,
(reflinkfs_found) ? "reflink" : "normal");
if(reflinkfs_found != NULL) {
RmStat dir_stat;
rm_sys_stat(wrap_entry->dir, &dir_stat);
g_hash_table_insert(table->reflinkfs_table,
GUINT_TO_POINTER(dir_stat.st_dev),
(gpointer)reflinkfs_found);
}
}
return self;
}
