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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/basic/filesystems.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/basic/filesystems.c177
1 files changed, 177 insertions, 0 deletions
diff --git a/src/basic/filesystems.c b/src/basic/filesystems.c
new file mode 100644
index 0000000..0f71f8e
--- /dev/null
+++ b/src/basic/filesystems.c
@@ -0,0 +1,177 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "filesystems-gperf.h"
+#include "stat-util.h"
+
+const char *fs_type_to_string(statfs_f_type_t magic) {
+
+ switch (magic) {
+#include "filesystem-switch-case.h"
+ }
+
+ return NULL;
+}
+
+
+int fs_type_from_string(const char *name, const statfs_f_type_t **ret) {
+ const struct FilesystemMagic *fs_magic;
+
+ assert(name);
+ assert(ret);
+
+ fs_magic = filesystems_gperf_lookup(name, strlen(name));
+ if (!fs_magic)
+ return -EINVAL;
+
+ *ret = fs_magic->magic;
+ return 0;
+}
+
+int fs_in_group(const struct statfs *s, FilesystemGroups fs_group) {
+ const char *fs;
+ int r;
+
+ NULSTR_FOREACH(fs, filesystem_sets[fs_group].value) {
+ const statfs_f_type_t *magic;
+
+ r = fs_type_from_string(fs, &magic);
+ if (r == 0) {
+ for (size_t i = 0; i < FILESYSTEM_MAGIC_MAX; i++) {
+ if (magic[i] == 0)
+ break;
+
+ if (is_fs_type(s, magic[i]))
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+
+const FilesystemSet filesystem_sets[_FILESYSTEM_SET_MAX] = {
+ [FILESYSTEM_SET_BASIC_API] = {
+ .name = "@basic-api",
+ .help = "Basic filesystem API",
+ .value =
+ "cgroup\0"
+ "cgroup2\0"
+ "devpts\0"
+ "devtmpfs\0"
+ "mqueue\0"
+ "proc\0"
+ "sysfs\0"
+ },
+ [FILESYSTEM_SET_ANONYMOUS] = {
+ .name = "@anonymous",
+ .help = "Anonymous inodes",
+ .value =
+ "anon_inodefs\0"
+ "pipefs\0"
+ "sockfs\0"
+ },
+ [FILESYSTEM_SET_APPLICATION] = {
+ .name = "@application",
+ .help = "Application virtual filesystems",
+ .value =
+ "autofs\0"
+ "fuse\0"
+ "overlay\0"
+ },
+ [FILESYSTEM_SET_AUXILIARY_API] = {
+ .name = "@auxiliary-api",
+ .help = "Auxiliary filesystem API",
+ .value =
+ "binfmt_misc\0"
+ "configfs\0"
+ "efivarfs\0"
+ "fusectl\0"
+ "hugetlbfs\0"
+ "rpc_pipefs\0"
+ "securityfs\0"
+ },
+ [FILESYSTEM_SET_COMMON_BLOCK] = {
+ .name = "@common-block",
+ .help = "Common block device filesystems",
+ .value =
+ "btrfs\0"
+ "erofs\0"
+ "exfat\0"
+ "ext4\0"
+ "f2fs\0"
+ "iso9660\0"
+ "ntfs3\0"
+ "squashfs\0"
+ "udf\0"
+ "vfat\0"
+ "xfs\0"
+ },
+ [FILESYSTEM_SET_HISTORICAL_BLOCK] = {
+ .name = "@historical-block",
+ .help = "Historical block device filesystems",
+ .value =
+ "ext2\0"
+ "ext3\0"
+ "minix\0"
+ },
+ [FILESYSTEM_SET_NETWORK] = {
+ .name = "@network",
+ .help = "Well-known network filesystems",
+ .value =
+ "afs\0"
+ "ceph\0"
+ "cifs\0"
+ "gfs\0"
+ "gfs2\0"
+ "ncp\0"
+ "ncpfs\0"
+ "nfs\0"
+ "nfs4\0"
+ "ocfs2\0"
+ "orangefs\0"
+ "pvfs2\0"
+ "smb3\0"
+ "smbfs\0"
+ },
+ [FILESYSTEM_SET_PRIVILEGED_API] = {
+ .name = "@privileged-api",
+ .help = "Privileged filesystem API",
+ .value =
+ "bpf\0"
+ "debugfs\0"
+ "pstore\0"
+ "tracefs\0"
+ },
+ [FILESYSTEM_SET_SECURITY] = {
+ .name = "@security",
+ .help = "Security/MAC API VFS",
+ .value =
+ "apparmorfs\0"
+ "selinuxfs\0"
+ "smackfs\0"
+ },
+ [FILESYSTEM_SET_TEMPORARY] = {
+ .name = "@temporary",
+ .help = "Temporary filesystems",
+ .value =
+ "ramfs\0"
+ "tmpfs\0"
+ },
+ [FILESYSTEM_SET_KNOWN] = {
+ .name = "@known",
+ .help = "All known filesystems declared in the kernel",
+ .value =
+#include "filesystem-list.h"
+ },
+};
+
+const FilesystemSet *filesystem_set_find(const char *name) {
+ if (isempty(name) || name[0] != '@')
+ return NULL;
+
+ for (FilesystemGroups i = 0; i < _FILESYSTEM_SET_MAX; i++)
+ if (streq(filesystem_sets[i].name, name))
+ return filesystem_sets + i;
+
+ return NULL;
+}