diff options
-rw-r--r-- | meta/recipes-core/systemd/systemd-systemctl-native.bb | 23 | ||||
-rwxr-xr-x | meta/recipes-core/systemd/systemd-systemctl/systemctl | 376 |
2 files changed, 11 insertions, 388 deletions
diff --git a/meta/recipes-core/systemd/systemd-systemctl-native.bb b/meta/recipes-core/systemd/systemd-systemctl-native.bb index ffa024caef..73862b4e23 100644 --- a/meta/recipes-core/systemd/systemd-systemctl-native.bb +++ b/meta/recipes-core/systemd/systemd-systemctl-native.bb | |||
@@ -1,17 +1,16 @@ | |||
1 | SUMMARY = "Wrapper for enabling systemd services" | 1 | SUMMARY = "Systemctl executable from systemd" |
2 | 2 | ||
3 | LICENSE = "MIT" | 3 | require systemd.inc |
4 | LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420" | ||
5 | 4 | ||
5 | DEPENDS = "gperf-native libcap-native util-linux-native python3-jinja2-native" | ||
6 | 6 | ||
7 | inherit native | 7 | inherit pkgconfig meson native |
8 | 8 | ||
9 | SRC_URI = "file://systemctl" | 9 | MESON_TARGET = "systemctl:executable" |
10 | MESON_INSTALL_TAGS = "systemctl" | ||
11 | EXTRA_OEMESON:append = " -Dlink-systemctl-shared=false" | ||
10 | 12 | ||
11 | S = "${WORKDIR}/sources" | 13 | # Systemctl is supposed to operate on target, but the target sysroot is not |
12 | UNPACKDIR = "${S}" | 14 | # determined at run-time, but rather set during configure |
13 | 15 | # More details are here https://github.com/systemd/systemd/issues/35897#issuecomment-2665405887 | |
14 | do_install() { | 16 | EXTRA_OEMESON:append = " --sysconfdir ${sysconfdir_native}" |
15 | install -d ${D}${bindir} | ||
16 | install -m 0755 ${S}/systemctl ${D}${bindir} | ||
17 | } | ||
diff --git a/meta/recipes-core/systemd/systemd-systemctl/systemctl b/meta/recipes-core/systemd/systemd-systemctl/systemctl deleted file mode 100755 index 65e3157859..0000000000 --- a/meta/recipes-core/systemd/systemd-systemctl/systemctl +++ /dev/null | |||
@@ -1,376 +0,0 @@ | |||
1 | #!/usr/bin/env python3 | ||
2 | """systemctl: subset of systemctl used for image construction | ||
3 | |||
4 | Mask/preset systemd units | ||
5 | """ | ||
6 | |||
7 | import argparse | ||
8 | import fnmatch | ||
9 | import os | ||
10 | import re | ||
11 | import sys | ||
12 | |||
13 | from collections import namedtuple | ||
14 | from itertools import chain | ||
15 | from pathlib import Path | ||
16 | |||
17 | version = 1.0 | ||
18 | |||
19 | ROOT = Path("/") | ||
20 | SYSCONFDIR = Path("etc") | ||
21 | BASE_LIBDIR = Path("lib") | ||
22 | LIBDIR = Path("usr", "lib") | ||
23 | |||
24 | locations = list() | ||
25 | |||
26 | |||
27 | class SystemdFile(): | ||
28 | """Class representing a single systemd configuration file""" | ||
29 | |||
30 | _clearable_keys = ['WantedBy'] | ||
31 | |||
32 | def __init__(self, root, path, instance_unit_name, unit_type): | ||
33 | self.sections = dict() | ||
34 | self._parse(root, path) | ||
35 | dirname = os.path.basename(path.name) + ".d" | ||
36 | for location in locations: | ||
37 | files = (root / location / unit_type / dirname).glob("*.conf") | ||
38 | if instance_unit_name: | ||
39 | inst_dirname = instance_unit_name + ".d" | ||
40 | files = chain(files, (root / location / unit_type / inst_dirname).glob("*.conf")) | ||
41 | for path2 in sorted(files): | ||
42 | self._parse(root, path2) | ||
43 | |||
44 | def _parse(self, root, path): | ||
45 | """Parse a systemd syntax configuration file | ||
46 | |||
47 | Args: | ||
48 | path: A pathlib.Path object pointing to the file | ||
49 | |||
50 | """ | ||
51 | skip_re = re.compile(r"^\s*([#;]|$)") | ||
52 | section_re = re.compile(r"^\s*\[(?P<section>.*)\]") | ||
53 | kv_re = re.compile(r"^\s*(?P<key>[^\s]+)\s*=\s*(?P<value>.*)") | ||
54 | section = None | ||
55 | |||
56 | if path.is_symlink(): | ||
57 | try: | ||
58 | path.resolve() | ||
59 | except FileNotFoundError: | ||
60 | # broken symlink, try relative to root | ||
61 | path = root / Path(os.readlink(str(path))).relative_to(ROOT) | ||
62 | |||
63 | with path.open() as f: | ||
64 | for line in f: | ||
65 | if skip_re.match(line): | ||
66 | continue | ||
67 | |||
68 | line = line.strip() | ||
69 | m = section_re.match(line) | ||
70 | if m: | ||
71 | if m.group('section') not in self.sections: | ||
72 | section = dict() | ||
73 | self.sections[m.group('section')] = section | ||
74 | else: | ||
75 | section = self.sections[m.group('section')] | ||
76 | continue | ||
77 | |||
78 | while line.endswith("\\"): | ||
79 | line += f.readline().rstrip("\n") | ||
80 | |||
81 | m = kv_re.match(line) | ||
82 | k = m.group('key') | ||
83 | v = m.group('value') | ||
84 | if k not in section: | ||
85 | section[k] = list() | ||
86 | |||
87 | # If we come across a "key=" line for a "clearable key", then | ||
88 | # forget all preceding assignments. This works because we are | ||
89 | # processing files in correct parse order. | ||
90 | if k in self._clearable_keys and not v: | ||
91 | del section[k] | ||
92 | continue | ||
93 | |||
94 | section[k].extend(v.split()) | ||
95 | |||
96 | def get(self, section, prop): | ||
97 | """Get a property from section | ||
98 | |||
99 | Args: | ||
100 | section: Section to retrieve property from | ||
101 | prop: Property to retrieve | ||
102 | |||
103 | Returns: | ||
104 | List representing all properties of type prop in section. | ||
105 | |||
106 | Raises: | ||
107 | KeyError: if ``section`` or ``prop`` not found | ||
108 | """ | ||
109 | return self.sections[section][prop] | ||
110 | |||
111 | |||
112 | class Presets(): | ||
113 | """Class representing all systemd presets""" | ||
114 | def __init__(self, scope, root): | ||
115 | self.directives = list() | ||
116 | self._collect_presets(scope, root) | ||
117 | |||
118 | def _parse_presets(self, presets): | ||
119 | """Parse presets out of a set of preset files""" | ||
120 | skip_re = re.compile(r"^\s*([#;]|$)") | ||
121 | directive_re = re.compile(r"^\s*(?P<action>enable|disable)\s+(?P<unit_name>(.+))") | ||
122 | |||
123 | Directive = namedtuple("Directive", "action unit_name") | ||
124 | for preset in presets: | ||
125 | with preset.open() as f: | ||
126 | for line in f: | ||
127 | m = directive_re.match(line) | ||
128 | if m: | ||
129 | directive = Directive(action=m.group('action'), | ||
130 | unit_name=m.group('unit_name')) | ||
131 | self.directives.append(directive) | ||
132 | elif skip_re.match(line): | ||
133 | pass | ||
134 | else: | ||
135 | sys.exit("Unparsed preset line in {}".format(preset)) | ||
136 | |||
137 | def _collect_presets(self, scope, root): | ||
138 | """Collect list of preset files""" | ||
139 | presets = dict() | ||
140 | for location in locations: | ||
141 | paths = (root / location / scope).glob("*.preset") | ||
142 | for path in paths: | ||
143 | # earlier names override later ones | ||
144 | if path.name not in presets: | ||
145 | presets[path.name] = path | ||
146 | |||
147 | self._parse_presets([v for k, v in sorted(presets.items())]) | ||
148 | |||
149 | def state(self, unit_name): | ||
150 | """Return state of preset for unit_name | ||
151 | |||
152 | Args: | ||
153 | presets: set of presets | ||
154 | unit_name: name of the unit | ||
155 | |||
156 | Returns: | ||
157 | None: no matching preset | ||
158 | `enable`: unit_name is enabled | ||
159 | `disable`: unit_name is disabled | ||
160 | """ | ||
161 | for directive in self.directives: | ||
162 | if fnmatch.fnmatch(unit_name, directive.unit_name): | ||
163 | return directive.action | ||
164 | |||
165 | return None | ||
166 | |||
167 | |||
168 | def add_link(path, target): | ||
169 | try: | ||
170 | path.parent.mkdir(parents=True) | ||
171 | except FileExistsError: | ||
172 | pass | ||
173 | if not path.is_symlink(): | ||
174 | print("ln -s {} {}".format(target, path)) | ||
175 | path.symlink_to(target) | ||
176 | |||
177 | |||
178 | class SystemdUnitNotFoundError(Exception): | ||
179 | def __init__(self, path, unit): | ||
180 | self.path = path | ||
181 | self.unit = unit | ||
182 | |||
183 | |||
184 | class SystemdUnit(): | ||
185 | def __init__(self, root, unit, unit_type): | ||
186 | self.root = root | ||
187 | self.unit = unit | ||
188 | self.unit_type = unit_type | ||
189 | self.config = None | ||
190 | |||
191 | def _path_for_unit(self, unit): | ||
192 | for location in locations: | ||
193 | path = self.root / location / self.unit_type / unit | ||
194 | if path.exists() or path.is_symlink(): | ||
195 | return path | ||
196 | |||
197 | raise SystemdUnitNotFoundError(self.root, unit) | ||
198 | |||
199 | def _process_deps(self, config, service, location, prop, dirstem, instance): | ||
200 | systemdir = self.root / SYSCONFDIR / "systemd" / self.unit_type | ||
201 | |||
202 | target = ROOT / location.relative_to(self.root) | ||
203 | try: | ||
204 | for dependent in config.get('Install', prop): | ||
205 | # expand any %i to instance (ignoring escape sequence %%) | ||
206 | dependent = re.sub("([^%](%%)*)%i", "\\g<1>{}".format(instance), dependent) | ||
207 | wants = systemdir / "{}.{}".format(dependent, dirstem) / service | ||
208 | add_link(wants, target) | ||
209 | |||
210 | except KeyError: | ||
211 | pass | ||
212 | |||
213 | def enable(self, units_enabled=[]): | ||
214 | # if we're enabling an instance, first extract the actual instance | ||
215 | # then figure out what the template unit is | ||
216 | template = re.match(r"[^@]+@(?P<instance>[^\.]*)\.", self.unit) | ||
217 | instance_unit_name = None | ||
218 | if template: | ||
219 | instance = template.group('instance') | ||
220 | if instance != "": | ||
221 | instance_unit_name = self.unit | ||
222 | unit = re.sub(r"@[^\.]*\.", "@.", self.unit, 1) | ||
223 | else: | ||
224 | instance = None | ||
225 | unit = self.unit | ||
226 | |||
227 | if instance_unit_name is not None: | ||
228 | try: | ||
229 | # Try first with instance unit name. Systemd allows to create instance unit files | ||
230 | # e.g. `gnome-shell@wayland.service` which cause template unit file to be ignored | ||
231 | # for the instance for which instance unit file is present. In that case, there may | ||
232 | # not be any template file at all. | ||
233 | path = self._path_for_unit(instance_unit_name) | ||
234 | except SystemdUnitNotFoundError: | ||
235 | path = self._path_for_unit(unit) | ||
236 | else: | ||
237 | path = self._path_for_unit(unit) | ||
238 | |||
239 | if path.is_symlink(): | ||
240 | # ignore aliases | ||
241 | return | ||
242 | |||
243 | config = SystemdFile(self.root, path, instance_unit_name, self.unit_type) | ||
244 | if instance == "": | ||
245 | try: | ||
246 | default_instance = config.get('Install', 'DefaultInstance')[0] | ||
247 | except KeyError: | ||
248 | # no default instance, so nothing to enable | ||
249 | return | ||
250 | |||
251 | service = self.unit.replace("@.", | ||
252 | "@{}.".format(default_instance)) | ||
253 | else: | ||
254 | service = self.unit | ||
255 | |||
256 | self._process_deps(config, service, path, 'WantedBy', 'wants', instance) | ||
257 | self._process_deps(config, service, path, 'RequiredBy', 'requires', instance) | ||
258 | |||
259 | try: | ||
260 | for also in config.get('Install', 'Also'): | ||
261 | try: | ||
262 | units_enabled.append(unit) | ||
263 | if also not in units_enabled: | ||
264 | SystemdUnit(self.root, also, self.unit_type).enable(units_enabled) | ||
265 | except SystemdUnitNotFoundError as e: | ||
266 | sys.exit("Error: Systemctl also enable issue with %s (%s)" % (service, e.unit)) | ||
267 | |||
268 | except KeyError: | ||
269 | pass | ||
270 | |||
271 | systemdir = self.root / SYSCONFDIR / "systemd" / self.unit_type | ||
272 | target = ROOT / path.relative_to(self.root) | ||
273 | try: | ||
274 | for dest in config.get('Install', 'Alias'): | ||
275 | alias = systemdir / dest | ||
276 | add_link(alias, target) | ||
277 | |||
278 | except KeyError: | ||
279 | pass | ||
280 | |||
281 | def mask(self): | ||
282 | systemdir = self.root / SYSCONFDIR / "systemd" / self.unit_type | ||
283 | add_link(systemdir / self.unit, "/dev/null") | ||
284 | |||
285 | |||
286 | def collect_services(root, unit_type): | ||
287 | """Collect list of service files""" | ||
288 | services = set() | ||
289 | for location in locations: | ||
290 | paths = (root / location / unit_type).glob("*") | ||
291 | for path in paths: | ||
292 | if path.is_dir(): | ||
293 | continue | ||
294 | services.add(path.name) | ||
295 | |||
296 | return services | ||
297 | |||
298 | |||
299 | def preset_all(root, unit_type): | ||
300 | presets = Presets('{}-preset'.format(unit_type), root) | ||
301 | services = collect_services(root, unit_type) | ||
302 | |||
303 | for service in services: | ||
304 | state = presets.state(service) | ||
305 | |||
306 | if state == "enable" or state is None: | ||
307 | try: | ||
308 | SystemdUnit(root, service, unit_type).enable() | ||
309 | except SystemdUnitNotFoundError: | ||
310 | sys.exit("Error: Systemctl preset_all issue in %s" % service) | ||
311 | |||
312 | # If we populate the systemd links we also create /etc/machine-id, which | ||
313 | # allows systemd to boot with the filesystem read-only before generating | ||
314 | # a real value and then committing it back. | ||
315 | # | ||
316 | # For the stateless configuration, where /etc is generated at runtime | ||
317 | # (for example on a tmpfs), this script shouldn't run at all and we | ||
318 | # allow systemd to completely populate /etc. | ||
319 | (root / SYSCONFDIR / "machine-id").touch() | ||
320 | |||
321 | |||
322 | def main(): | ||
323 | if sys.version_info < (3, 4, 0): | ||
324 | sys.exit("Python 3.4 or greater is required") | ||
325 | |||
326 | parser = argparse.ArgumentParser() | ||
327 | parser.add_argument('command', nargs='?', choices=['enable', 'mask', | ||
328 | 'preset-all']) | ||
329 | parser.add_argument('service', nargs=argparse.REMAINDER) | ||
330 | parser.add_argument('--root') | ||
331 | parser.add_argument('--preset-mode', | ||
332 | choices=['full', 'enable-only', 'disable-only'], | ||
333 | default='full') | ||
334 | parser.add_argument('--global', dest="opt_global", action="store_true", default=False) | ||
335 | |||
336 | args = parser.parse_args() | ||
337 | |||
338 | root = Path(args.root) if args.root else ROOT | ||
339 | |||
340 | locations.append(SYSCONFDIR / "systemd") | ||
341 | # Handle the usrmerge case by ignoring /lib when it's a symlink | ||
342 | if not (root / BASE_LIBDIR).is_symlink(): | ||
343 | locations.append(BASE_LIBDIR / "systemd") | ||
344 | locations.append(LIBDIR / "systemd") | ||
345 | |||
346 | command = args.command | ||
347 | if not command: | ||
348 | parser.print_help() | ||
349 | return 0 | ||
350 | |||
351 | unit_type = "user" if args.opt_global else "system" | ||
352 | |||
353 | if command == "mask": | ||
354 | for service in args.service: | ||
355 | try: | ||
356 | SystemdUnit(root, service, unit_type).mask() | ||
357 | except SystemdUnitNotFoundError as e: | ||
358 | sys.exit("Error: Systemctl main mask issue in %s (%s)" % (service, e.unit)) | ||
359 | elif command == "enable": | ||
360 | for service in args.service: | ||
361 | try: | ||
362 | SystemdUnit(root, service, unit_type).enable() | ||
363 | except SystemdUnitNotFoundError as e: | ||
364 | sys.exit("Error: Systemctl main enable issue in %s (%s)" % (service, e.unit)) | ||
365 | elif command == "preset-all": | ||
366 | if len(args.service) != 0: | ||
367 | sys.exit("Too many arguments.") | ||
368 | if args.preset_mode != "enable-only": | ||
369 | sys.exit("Only enable-only is supported as preset-mode.") | ||
370 | preset_all(root, unit_type) | ||
371 | else: | ||
372 | raise RuntimeError() | ||
373 | |||
374 | |||
375 | if __name__ == '__main__': | ||
376 | main() | ||