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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/basic/filesystems.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/basic/filesystems.c | 177 |
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; +} |