switch-to-configuration-ng: use libsystemd in place of calling systemd-escape

More native rust code, less calling out to external programs!
This commit is contained in:
Jared Baur
2026-02-13 18:25:13 +00:00
parent 0725338a03
commit ea3419a06c
3 changed files with 262 additions and 29 deletions
+252 -1
View File
@@ -67,12 +67,33 @@ version = "1.0.101"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5f0e0fee31ef5ed1ba1316088939cea399010ed7731dba877ed44aeb407a75ea"
[[package]]
name = "autocfg"
version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
[[package]]
name = "bitflags"
version = "2.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "812e12b5285cc515a9c72a5c1d3b6d46a19dac5acfef5265968c166106e31dd3"
[[package]]
name = "block-buffer"
version = "0.10.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
dependencies = [
"generic-array",
]
[[package]]
name = "bumpalo"
version = "3.19.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5dd9dc738b7a8311c7ade152424974d8115f2cdad61e8dab8dac9f2362298510"
[[package]]
name = "cfg-if"
version = "1.0.4"
@@ -138,12 +159,31 @@ dependencies = [
"tiny-keccak",
]
[[package]]
name = "cpufeatures"
version = "0.2.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "59ed5838eebb26a2bb2e58f6d5b5316989ae9d08bab10e0e6d103e656d1b0280"
dependencies = [
"libc",
]
[[package]]
name = "crunchy"
version = "0.2.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "460fbee9c2c2f33933d720630a6a0bac33ba7053db5344fac858d4b8952d77d5"
[[package]]
name = "crypto-common"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "78c8292055d1c1df0cce5d180393dc8cce0abec0a7102adb6c7b1eef6016d60a"
dependencies = [
"generic-array",
"typenum",
]
[[package]]
name = "dbus"
version = "0.9.10"
@@ -175,6 +215,17 @@ dependencies = [
"powerfmt",
]
[[package]]
name = "digest"
version = "0.10.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
dependencies = [
"block-buffer",
"crypto-common",
"subtle",
]
[[package]]
name = "dlv-list"
version = "0.5.2"
@@ -184,6 +235,16 @@ dependencies = [
"const-random",
]
[[package]]
name = "generic-array"
version = "0.14.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
dependencies = [
"typenum",
"version_check",
]
[[package]]
name = "getrandom"
version = "0.2.17"
@@ -207,6 +268,15 @@ version = "0.14.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
[[package]]
name = "hmac"
version = "0.12.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
dependencies = [
"digest",
]
[[package]]
name = "hostname"
version = "0.4.2"
@@ -230,6 +300,16 @@ version = "1.0.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"
[[package]]
name = "js-sys"
version = "0.3.85"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8c942ebf8e95485ca0d52d97da7c5a2c387d0e7f0ba4c35e93bfcaee045955b3"
dependencies = [
"once_cell",
"wasm-bindgen",
]
[[package]]
name = "libc"
version = "0.2.180"
@@ -245,6 +325,24 @@ dependencies = [
"pkg-config",
]
[[package]]
name = "libsystemd"
version = "0.7.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "19c97a761fc86953c5b885422b22c891dbf5bcb9dcc99d0110d6ce4c052759f0"
dependencies = [
"hmac",
"libc",
"log",
"nix 0.29.0",
"nom",
"once_cell",
"serde",
"sha2",
"thiserror",
"uuid",
]
[[package]]
name = "log"
version = "0.4.29"
@@ -257,6 +355,28 @@ version = "2.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
[[package]]
name = "memoffset"
version = "0.9.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "488016bfae457b036d996092f6cb448677611ce4449e970ceaf42695203f218a"
dependencies = [
"autocfg",
]
[[package]]
name = "nix"
version = "0.29.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
dependencies = [
"bitflags",
"cfg-if",
"cfg_aliases",
"libc",
"memoffset",
]
[[package]]
name = "nix"
version = "0.31.1"
@@ -269,6 +389,15 @@ dependencies = [
"libc",
]
[[package]]
name = "nom"
version = "8.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "df9761775871bdef83bee530e60050f7e54b1105350d6884eb0fb4f46c2f9405"
dependencies = [
"memchr",
]
[[package]]
name = "num-conv"
version = "0.2.0"
@@ -375,6 +504,22 @@ dependencies = [
"ordered-multimap",
]
[[package]]
name = "rustversion"
version = "1.0.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
[[package]]
name = "serde"
version = "1.0.228"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
dependencies = [
"serde_core",
"serde_derive",
]
[[package]]
name = "serde_core"
version = "1.0.228"
@@ -395,12 +540,29 @@ dependencies = [
"syn",
]
[[package]]
name = "sha2"
version = "0.10.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
dependencies = [
"cfg-if",
"cpufeatures",
"digest",
]
[[package]]
name = "strsim"
version = "0.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
[[package]]
name = "subtle"
version = "2.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
[[package]]
name = "switch-to-configuration"
version = "0.1.0"
@@ -409,8 +571,9 @@ dependencies = [
"dbus",
"dbus-codegen",
"glob",
"libsystemd",
"log",
"nix",
"nix 0.31.1",
"regex",
"rust-ini",
"syslog",
@@ -439,6 +602,26 @@ dependencies = [
"time",
]
[[package]]
name = "thiserror"
version = "2.0.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
dependencies = [
"thiserror-impl",
]
[[package]]
name = "thiserror-impl"
version = "2.0.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "time"
version = "0.3.47"
@@ -481,6 +664,12 @@ dependencies = [
"crunchy",
]
[[package]]
name = "typenum"
version = "1.19.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "562d481066bde0658276a35467c4af00bdc6ee726305698a55b86e61d7ad82bb"
[[package]]
name = "unicode-ident"
version = "1.0.23"
@@ -493,12 +682,74 @@ version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
[[package]]
name = "uuid"
version = "1.20.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ee48d38b119b0cd71fe4141b30f5ba9c7c5d9f4e7a3a8b4a674e4b6ef789976f"
dependencies = [
"js-sys",
"serde_core",
"wasm-bindgen",
]
[[package]]
name = "version_check"
version = "0.9.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
[[package]]
name = "wasi"
version = "0.11.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
[[package]]
name = "wasm-bindgen"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "64024a30ec1e37399cf85a7ffefebdb72205ca1c972291c51512360d90bd8566"
dependencies = [
"cfg-if",
"once_cell",
"rustversion",
"wasm-bindgen-macro",
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-macro"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "008b239d9c740232e71bd39e8ef6429d27097518b6b30bdf9086833bd5b6d608"
dependencies = [
"quote",
"wasm-bindgen-macro-support",
]
[[package]]
name = "wasm-bindgen-macro-support"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5256bae2d58f54820e6490f9839c49780dff84c65aeab9e772f15d5f0e913a55"
dependencies = [
"bumpalo",
"proc-macro2",
"quote",
"syn",
"wasm-bindgen-shared",
]
[[package]]
name = "wasm-bindgen-shared"
version = "0.2.108"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1f01b580c9ac74c8d8f0c0e4afb04eeef2acf145458e52c03845ee9cd23e3d12"
dependencies = [
"unicode-ident",
]
[[package]]
name = "windows-link"
version = "0.2.1"
@@ -15,6 +15,7 @@ lto = true
anyhow = "1.0.82"
dbus = "0.9.7"
glob = "0.3.1"
libsystemd = "0.7.2"
log = "0.4.21"
nix = { version = "0.31.1", features = ["fs", "signal"] }
regex = "1.12.3"
@@ -825,28 +825,14 @@ fn parse_fstab(fstab: impl BufRead) -> (HashMap<String, Filesystem>, HashMap<Str
(filesystems, swaps)
}
// Converts a path to the name of a systemd mount unit that would be responsible for mounting this
// path.
fn path_to_unit_name(bin_path: &Path, path: &str, is_automount: bool) -> String {
let Ok(output) = std::process::Command::new(bin_path.join("systemd-escape"))
.arg(format!(
"--suffix={}",
if is_automount { "automount" } else { "mount" }
))
.arg("-p")
.arg(path)
.output()
else {
eprintln!("Unable to escape {path}!");
die();
};
let Ok(unit) = String::from_utf8(output.stdout) else {
eprintln!("Unable to convert systemd-escape output to valid UTF-8");
die();
};
unit.trim().to_string()
// Converts a path to the name of a systemd mount/automount unit that would be responsible for
// mounting this path.
fn path_to_unit_name(path: &str, is_automount: bool) -> String {
format!(
"{}.{}",
libsystemd::unit::escape_path(path),
if is_automount { "automount" } else { "mount" },
)
}
// Returns a HashMap containing the same contents as the passed in `units`, minus the units in
@@ -1121,11 +1107,6 @@ fn do_system_switch(action: Action) -> anyhow::Result<()> {
std::process::exit(0);
}
// Needs to be after the "boot" action exits, as this directory will not exist when doing a NIXOS_LUSTRATE install
let current_system_bin = std::path::PathBuf::from("/run/current-system/sw/bin")
.canonicalize()
.context("/run/current-system/sw/bin is missing")?;
let current_init_interface_version =
std::fs::read_to_string("/run/current-system/init-interface-version").unwrap_or_default();
@@ -1352,7 +1333,7 @@ won't take effect until you reboot the system.
let is_automount = current_filesystem.options.contains("x-systemd.automount");
// Use current version of systemctl binary before daemon is reexeced.
let unit = path_to_unit_name(&current_system_bin, &mountpoint, is_automount);
let unit = path_to_unit_name(&mountpoint, is_automount);
if let Some(new_filesystem) = new_filesystems.get(&mountpoint) {
if current_filesystem.fs_type != new_filesystem.fs_type
|| current_filesystem.device != new_filesystem.device