basic: use filesystem database

src/basic/meson.build

@@ -375,6 +375,34 @@ run_target(
 
 ############################################################
 
+filesystem_includes = ['linux/magic.h',
+                       'linux/gfs2_ondisk.h']
+
+check_filesystems = find_program('check-filesystems.sh')
+r = run_command([check_filesystems, cpp, 'filesystems-gperf.gperf'] + filesystem_includes)
+if r.returncode() != 0
+    error('found unknown filesystem(s) defined in kernel headers:\n\n' + r.stdout())
+    r.stdout()
+endif
+
+filesystems_gperf_h = custom_target(
+        'filesystems-gperf.h',
+        input : 'filesystems-gperf.gperf',
+        output : 'filesystems-gperf.h',
+        command : [gperf, '@INPUT@', '--output-file', '@OUTPUT@'])
+
+generate_filesystem_list = find_program('generate-filesystem-list.py')
+fname = 'filesystem-list.h'
+filesystem_list_h = custom_target(
+        fname,
+        input : 'filesystems-gperf.gperf',
+        output : fname,
+        command : [generate_filesystem_list,
+                   '@INPUT@'],
+        capture : true)
+
+basic_sources += [filesystem_list_h, filesystems_gperf_h]
+
 libbasic = static_library(
         'basic',
         basic_sources,

src/basic/mountpoint-util.c

@@ -8,11 +8,13 @@
 #include "chase-symlinks.h"
 #include "fd-util.h"
 #include "fileio.h"
+#include "filesystems.h"
 #include "fs-util.h"
 #include "missing_stat.h"
 #include "missing_syscall.h"
 #include "mkdir.h"
 #include "mountpoint-util.h"
+#include "nulstr-util.h"
 #include "parse-util.h"
 #include "path-util.h"
 #include "stat-util.h"
@@ -366,48 +368,34 @@ bool fstype_is_network(const char *fstype) {
         if (x)
                 fstype = x;
 
+        if (nulstr_contains(filesystem_sets[FILESYSTEM_SET_NETWORK].value, fstype))
+                return true;
+
+        /* Filesystems not present in the internal database */
         return STR_IN_SET(fstype,
-                          "afs",
                           "ceph",
-                          "cifs",
-                          "smb3",
-                          "smbfs",
-                          "sshfs",
-                          "ncpfs",
-                          "ncp",
-                          "nfs",
-                          "nfs4",
-                          "gfs",
-                          "gfs2",
+                          "davfs",
                           "glusterfs",
-                          "pvfs2", /* OrangeFS */
-                          "ocfs2",
                           "lustre",
-                          "davfs");
+                          "sshfs");
 }
 
 bool fstype_is_api_vfs(const char *fstype) {
+        const FilesystemSet *fs;
+
+        FOREACH_POINTER(fs,
+                filesystem_sets + FILESYSTEM_SET_BASIC_API,
+                filesystem_sets + FILESYSTEM_SET_AUXILIARY_API,
+                filesystem_sets + FILESYSTEM_SET_PRIVILEGED_API,
+                filesystem_sets + FILESYSTEM_SET_TEMPORARY)
+            if (nulstr_contains(fs->value, fstype))
+                    return true;
+
+        /* Filesystems not present in the internal database */
         return STR_IN_SET(fstype,
                           "autofs",
-                          "bpf",
-                          "cgroup",
-                          "cgroup2",
-                          "configfs",
                           "cpuset",
-                          "debugfs",
-                          "devpts",
-                          "devtmpfs",
-                          "efivarfs",
-                          "fusectl",
-                          "hugetlbfs",
-                          "mqueue",
-                          "proc",
-                          "pstore",
-                          "ramfs",
-                          "securityfs",
-                          "sysfs",
-                          "tmpfs",
-                          "tracefs");
+                          "devtmpfs");
 }
 
 bool fstype_is_blockdev_backed(const char *fstype) {

src/basic/stat-util.c

@@ -13,10 +13,13 @@
 #include "errno-util.h"
 #include "fd-util.h"
 #include "fileio.h"
+#include "filesystems.h"
+#include "fs-util.h"
 #include "macro.h"
 #include "missing_fs.h"
 #include "missing_magic.h"
 #include "missing_syscall.h"
+#include "nulstr-util.h"
 #include "parse-util.h"
 #include "stat-util.h"
 #include "string-util.h"
@@ -198,19 +201,11 @@ int path_is_fs_type(const char *path, statfs_f_type_t magic_value) {
 }
 
 bool is_temporary_fs(const struct statfs *s) {
-        return is_fs_type(s, TMPFS_MAGIC) ||
-                is_fs_type(s, RAMFS_MAGIC);
+        return fs_in_group(s, FILESYSTEM_SET_TEMPORARY);
 }
 
 bool is_network_fs(const struct statfs *s) {
-        return is_fs_type(s, CIFS_MAGIC_NUMBER) ||
-                is_fs_type(s, CODA_SUPER_MAGIC) ||
-                is_fs_type(s, NCP_SUPER_MAGIC) ||
-                is_fs_type(s, NFS_SUPER_MAGIC) ||
-                is_fs_type(s, SMB_SUPER_MAGIC) ||
-                is_fs_type(s, V9FS_MAGIC) ||
-                is_fs_type(s, AFS_SUPER_MAGIC) ||
-                is_fs_type(s, OCFS2_SUPER_MAGIC);
+        return fs_in_group(s, FILESYSTEM_SET_NETWORK);
 }
 
 int fd_is_temporary_fs(int fd) {