#include <string.h>
#include "alloc-util.h"
+#include "fileio.h"
+#include "fs-util.h"
#include "install.h"
#include "log.h"
#include "macro.h"
#include "mkdir.h"
#include "path-lookup.h"
#include "path-util.h"
+#include "rm-rf.h"
#include "stat-util.h"
#include "string-util.h"
#include "strv.h"
+#include "user-util.h"
#include "util.h"
-int user_config_home(char **config_home) {
+static int user_runtime_dir(char **ret, const char *suffix) {
const char *e;
- char *r;
+ char *j;
- e = getenv("XDG_CONFIG_HOME");
- if (e) {
- r = strappend(e, "/systemd/user");
- if (!r)
- return -ENOMEM;
-
- *config_home = r;
- return 1;
- } else {
- const char *home;
+ assert(ret);
+ assert(suffix);
- home = getenv("HOME");
- if (home) {
- r = strappend(home, "/.config/systemd/user");
- if (!r)
- return -ENOMEM;
+ e = getenv("XDG_RUNTIME_DIR");
+ if (!e)
+ return -ENXIO;
- *config_home = r;
- return 1;
- }
- }
+ j = strappend(e, suffix);
+ if (!j)
+ return -ENOMEM;
+ *ret = j;
return 0;
}
-int user_runtime_dir(char **runtime_dir) {
+static int user_config_dir(char **ret, const char *suffix) {
const char *e;
- char *r;
+ char *j;
+ int r;
- e = getenv("XDG_RUNTIME_DIR");
- if (e) {
- r = strappend(e, "/systemd/user");
- if (!r)
- return -ENOMEM;
+ assert(ret);
- *runtime_dir = r;
- return 1;
+ e = getenv("XDG_CONFIG_HOME");
+ if (e)
+ j = strappend(e, suffix);
+ else {
+ _cleanup_free_ char *home = NULL;
+
+ r = get_home_dir(&home);
+ if (r < 0)
+ return r;
+
+ j = strjoin(home, "/.config", suffix);
}
+ if (!j)
+ return -ENOMEM;
+
+ *ret = j;
return 0;
}
-static int user_data_home_dir(char **dir, const char *suffix) {
+static int user_data_dir(char **ret, const char *suffix) {
const char *e;
- char *res;
+ char *j;
+ int r;
+
+ assert(ret);
+ assert(suffix);
/* We don't treat /etc/xdg/systemd here as the spec
- * suggests because we assume that that is a link to
+ * suggests because we assume that is a link to
* /etc/systemd/ anyway. */
e = getenv("XDG_DATA_HOME");
if (e)
- res = strappend(e, suffix);
+ j = strappend(e, suffix);
else {
- const char *home;
+ _cleanup_free_ char *home = NULL;
- home = getenv("HOME");
- if (home)
- res = strjoin(home, "/.local/share", suffix, NULL);
- else
- return 0;
+ r = get_home_dir(&home);
+ if (r < 0)
+ return r;
+
+ j = strjoin(home, "/.local/share", suffix);
}
- if (!res)
+ if (!j)
return -ENOMEM;
- *dir = res;
+ *ret = j;
return 1;
}
+static const char* const user_data_unit_paths[] = {
+ "/usr/local/lib/systemd/user",
+ "/usr/local/share/systemd/user",
+ USER_DATA_UNIT_PATH,
+ "/usr/lib/systemd/user",
+ "/usr/share/systemd/user",
+ NULL
+};
+
+static const char* const user_config_unit_paths[] = {
+ USER_CONFIG_UNIT_PATH,
+ "/etc/systemd/user",
+ NULL
+};
+
static char** user_dirs(
const char *persistent_config,
const char *runtime_config,
const char *generator,
const char *generator_early,
const char *generator_late,
- const char *transient) {
-
- const char * const config_unit_paths[] = {
- USER_CONFIG_UNIT_PATH,
- "/etc/systemd/user",
- NULL
- };
-
- const char * const data_unit_paths[] = {
- "/usr/local/lib/systemd/user",
- "/usr/local/share/systemd/user",
- USER_DATA_UNIT_PATH,
- "/usr/lib/systemd/user",
- "/usr/share/systemd/user",
- NULL
- };
+ const char *transient,
+ const char *persistent_control,
+ const char *runtime_control) {
- const char *e;
- _cleanup_free_ char *config_home = NULL, *runtime_dir = NULL, *data_home = NULL;
_cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
- _cleanup_free_ char **res = NULL;
+ _cleanup_free_ char *data_home = NULL;
+ _cleanup_strv_free_ char **res = NULL;
+ const char *e;
char **tmp;
int r;
* as data, and allow overriding as configuration.
*/
- if (user_config_home(&config_home) < 0)
- return NULL;
-
- if (user_runtime_dir(&runtime_dir) < 0)
- return NULL;
-
e = getenv("XDG_CONFIG_DIRS");
if (e) {
config_dirs = strv_split(e, ":");
return NULL;
}
- r = user_data_home_dir(&data_home, "/systemd/user");
- if (r < 0)
+ r = user_data_dir(&data_home, "/systemd/user");
+ if (r < 0 && r != -ENXIO)
return NULL;
e = getenv("XDG_DATA_DIRS");
return NULL;
/* Now merge everything we found. */
- if (transient)
- if (strv_extend(&res, transient) < 0)
- return NULL;
+ if (strv_extend(&res, persistent_control) < 0)
+ return NULL;
- if (generator_early)
- if (strv_extend(&res, generator_early) < 0)
- return NULL;
+ if (strv_extend(&res, runtime_control) < 0)
+ return NULL;
- if (config_home)
- if (strv_extend(&res, config_home) < 0)
- return NULL;
+ if (strv_extend(&res, transient) < 0)
+ return NULL;
- if (!strv_isempty(config_dirs))
- if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0)
- return NULL;
+ if (strv_extend(&res, generator_early) < 0)
+ return NULL;
- if (strv_extend(&res, persistent_config) < 0)
+ if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0)
return NULL;
- if (strv_extend_strv(&res, (char**) config_unit_paths, false) < 0)
+ if (strv_extend(&res, persistent_config) < 0)
return NULL;
- if (runtime_dir)
- if (strv_extend(&res, runtime_dir) < 0)
- return NULL;
+ if (strv_extend_strv(&res, (char**) user_config_unit_paths, false) < 0)
+ return NULL;
if (strv_extend(&res, runtime_config) < 0)
return NULL;
- if (generator)
- if (strv_extend(&res, generator) < 0)
- return NULL;
+ if (strv_extend(&res, generator) < 0)
+ return NULL;
- if (data_home)
- if (strv_extend(&res, data_home) < 0)
- return NULL;
+ if (strv_extend(&res, data_home) < 0)
+ return NULL;
- if (!strv_isempty(data_dirs))
- if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0)
- return NULL;
+ if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0)
+ return NULL;
- if (strv_extend_strv(&res, (char**) data_unit_paths, false) < 0)
+ if (strv_extend_strv(&res, (char**) user_data_unit_paths, false) < 0)
return NULL;
- if (generator_late)
- if (strv_extend(&res, generator_late) < 0)
- return NULL;
+ if (strv_extend(&res, generator_late) < 0)
+ return NULL;
if (path_strv_make_absolute_cwd(res) < 0)
return NULL;
tmp = res;
res = NULL;
+
return tmp;
}
-char **generator_paths(UnitFileScope scope) {
+bool path_is_user_data_dir(const char *path) {
+ assert(path);
- switch (scope) {
-
- case UNIT_FILE_SYSTEM:
- return strv_new("/run/systemd/system-generators",
- "/etc/systemd/system-generators",
- "/usr/local/lib/systemd/system-generators",
- SYSTEM_GENERATOR_PATH,
- NULL);
+ return strv_contains((char**) user_data_unit_paths, path);
+}
- case UNIT_FILE_GLOBAL:
- case UNIT_FILE_USER:
- return strv_new("/run/systemd/user-generators",
- "/etc/systemd/user-generators",
- "/usr/local/lib/systemd/user-generators",
- USER_GENERATOR_PATH,
- NULL);
+bool path_is_user_config_dir(const char *path) {
+ assert(path);
- default:
- assert_not_reached("Hmm, unexpected scope.");
- }
+ return strv_contains((char**) user_config_unit_paths, path);
}
static int acquire_generator_dirs(
UnitFileScope scope,
+ const char *tempdir,
char **generator,
char **generator_early,
char **generator_late) {
+ _cleanup_(rmdir_and_freep) char *t = NULL;
_cleanup_free_ char *x = NULL, *y = NULL, *z = NULL;
const char *prefix;
assert(generator);
assert(generator_early);
assert(generator_late);
+ assert(IN_SET(scope, UNIT_FILE_SYSTEM, UNIT_FILE_USER, UNIT_FILE_GLOBAL));
- switch (scope) {
+ if (scope == UNIT_FILE_GLOBAL)
+ return -EOPNOTSUPP;
- case UNIT_FILE_SYSTEM:
- prefix = "/run/systemd/";
- break;
+ if (tempdir)
+ prefix = tempdir;
+
+ else if (scope == UNIT_FILE_SYSTEM)
+ prefix = "/run/systemd";
- case UNIT_FILE_USER: {
+ else if (scope == UNIT_FILE_USER) {
const char *e;
e = getenv("XDG_RUNTIME_DIR");
if (!e)
return -ENXIO;
- prefix = strjoina(e, "/systemd/", NULL);
- break;
+ prefix = strjoina(e, "/systemd");
}
- case UNIT_FILE_GLOBAL:
- return -EOPNOTSUPP;
-
- default:
- assert_not_reached("Hmm, unexpected scope value.");
- }
-
- x = strappend(prefix, "generator");
+ x = strappend(prefix, "/generator");
if (!x)
return -ENOMEM;
- y = strappend(prefix, "generator.early");
+ y = strappend(prefix, "/generator.early");
if (!y)
return -ENOMEM;
- z = strappend(prefix, "generator.late");
+ z = strappend(prefix, "/generator.late");
if (!z)
return -ENOMEM;
return 0;
}
-static int acquire_transient_dir(UnitFileScope scope, char **ret) {
+static int acquire_transient_dir(
+ UnitFileScope scope,
+ const char *tempdir,
+ char **ret) {
+
char *transient;
assert(ret);
+ assert(IN_SET(scope, UNIT_FILE_SYSTEM, UNIT_FILE_USER, UNIT_FILE_GLOBAL));
- switch (scope) {
-
- case UNIT_FILE_SYSTEM:
- transient = strdup("/run/systemd/transient");
- break;
-
- case UNIT_FILE_USER: {
- const char *e;
-
- e = getenv("XDG_RUNTIME_DIR");
- if (!e)
- return -ENXIO;
-
- transient = strjoin(e, "/systemd/transient", NULL);
- break;
- }
-
- case UNIT_FILE_GLOBAL:
+ if (scope == UNIT_FILE_GLOBAL)
return -EOPNOTSUPP;
- default:
- assert_not_reached("Hmm, unexpected scope value.");
- }
+ if (tempdir)
+ transient = strjoin(tempdir, "/transient");
+ else if (scope == UNIT_FILE_SYSTEM)
+ transient = strdup("/run/systemd/transient");
+ else
+ return user_runtime_dir(ret, "/systemd/transient");
if (!transient)
return -ENOMEM;
-
*ret = transient;
return 0;
}
break;
case UNIT_FILE_USER:
- r = user_config_home(&a);
- if (r < 0)
+ r = user_config_dir(&a, "/systemd/user");
+ if (r < 0 && r != -ENXIO)
return r;
- r = user_runtime_dir(runtime);
- if (r < 0)
- return r;
+ r = user_runtime_dir(runtime, "/systemd/user");
+ if (r < 0) {
+ if (r != -ENXIO)
+ return r;
+
+ /* If XDG_RUNTIME_DIR is not set, don't consider that fatal, simply initialize the runtime
+ * directory to NULL */
+ *runtime = NULL;
+ }
*persistent = a;
a = NULL;
return 0;
}
+static int acquire_control_dirs(UnitFileScope scope, char **persistent, char **runtime) {
+ _cleanup_free_ char *a = NULL;
+ int r;
+
+ assert(persistent);
+ assert(runtime);
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM: {
+ _cleanup_free_ char *b = NULL;
+
+ a = strdup("/etc/systemd/system.control");
+ if (!a)
+ return -ENOMEM;
+
+ b = strdup("/run/systemd/system.control");
+ if (!b)
+ return -ENOMEM;
+
+ *runtime = b;
+ b = NULL;
+
+ break;
+ }
+
+ case UNIT_FILE_USER:
+ r = user_config_dir(&a, "/systemd/system.control");
+ if (r < 0 && r != -ENXIO)
+ return r;
+
+ r = user_runtime_dir(runtime, "/systemd/system.control");
+ if (r < 0) {
+ if (r != -ENXIO)
+ return r;
+
+ /* If XDG_RUNTIME_DIR is not set, don't consider this fatal, simply initialize the directory to
+ * NULL */
+ *runtime = NULL;
+ }
+
+ break;
+
+ case UNIT_FILE_GLOBAL:
+ return -EOPNOTSUPP;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope value.");
+ }
+
+ *persistent = a;
+ a = NULL;
+
+ return 0;
+}
+
static int patch_root_prefix(char **p, const char *root_dir) {
char *c;
int lookup_paths_init(
LookupPaths *p,
UnitFileScope scope,
+ LookupPathsFlags flags,
const char *root_dir) {
+ _cleanup_(rmdir_and_freep) char *tempdir = NULL;
_cleanup_free_ char
*root = NULL,
*persistent_config = NULL, *runtime_config = NULL,
*generator = NULL, *generator_early = NULL, *generator_late = NULL,
- *transient = NULL;
+ *transient = NULL,
+ *persistent_control = NULL, *runtime_control = NULL;
bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */
- char **l = NULL;
+ _cleanup_strv_free_ char **paths = NULL;
const char *e;
int r;
return -ENOMEM;
}
+ if (flags & LOOKUP_PATHS_TEMPORARY_GENERATED) {
+ r = mkdtemp_malloc("/tmp/systemd-temporary-XXXXXX", &tempdir);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create temporary directory: %m");
+ }
+
+ /* Note: when XDG_RUNTIME_DIR is not set this will not return -ENXIO, but simply set runtime_config to NULL */
r = acquire_config_dirs(scope, &persistent_config, &runtime_config);
if (r < 0)
return r;
- r = acquire_generator_dirs(scope, &generator, &generator_early, &generator_late);
- if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO)
+ if ((flags & LOOKUP_PATHS_EXCLUDE_GENERATED) == 0) {
+ /* Note: if XDG_RUNTIME_DIR is not set, this will fail completely with ENXIO */
+ r = acquire_generator_dirs(scope, tempdir,
+ &generator, &generator_early, &generator_late);
+ if (r < 0 && !IN_SET(r, -EOPNOTSUPP, -ENXIO))
+ return r;
+ }
+
+ /* Note: if XDG_RUNTIME_DIR is not set, this will fail completely with ENXIO */
+ r = acquire_transient_dir(scope, tempdir, &transient);
+ if (r < 0 && !IN_SET(r, -EOPNOTSUPP, -ENXIO))
return r;
- r = acquire_transient_dir(scope, &transient);
- if (r < 0 && r != -EOPNOTSUPP && r != -ENXIO)
+ /* Note: when XDG_RUNTIME_DIR is not set this will not return -ENXIO, but simply set runtime_control to NULL */
+ r = acquire_control_dirs(scope, &persistent_control, &runtime_control);
+ if (r < 0 && r != -EOPNOTSUPP)
return r;
/* First priority is whatever has been passed to us via env vars */
append = true;
}
- /* FIXME: empty components in other places should be
- * rejected. */
+ /* FIXME: empty components in other places should be rejected. */
- r = path_split_and_make_absolute(e, &l);
+ r = path_split_and_make_absolute(e, &paths);
if (r < 0)
return r;
- } else
- l = NULL;
+ }
- if (!l || append) {
+ if (!paths || append) {
/* Let's figure something out. */
_cleanup_strv_free_ char **add = NULL;
add = strv_new(
/* If you modify this you also want to modify
* systemdsystemunitpath= in systemd.pc.in! */
+ STRV_IFNOTNULL(persistent_control),
+ STRV_IFNOTNULL(runtime_control),
STRV_IFNOTNULL(transient),
STRV_IFNOTNULL(generator_early),
persistent_config,
"/usr/local/lib/systemd/system",
SYSTEM_DATA_UNIT_PATH,
"/usr/lib/systemd/system",
-#ifdef HAVE_SPLIT_USR
+#if HAVE_SPLIT_USR
"/lib/systemd/system",
#endif
STRV_IFNOTNULL(generator_late),
/* If you modify this you also want to modify
* systemduserunitpath= in systemd.pc.in, and
* the arrays in user_dirs() above! */
+ STRV_IFNOTNULL(persistent_control),
+ STRV_IFNOTNULL(runtime_control),
STRV_IFNOTNULL(transient),
STRV_IFNOTNULL(generator_early),
persistent_config,
case UNIT_FILE_USER:
add = user_dirs(persistent_config, runtime_config,
generator, generator_early, generator_late,
- transient);
+ transient,
+ persistent_config, runtime_control);
break;
default:
if (!add)
return -ENOMEM;
- if (l) {
- r = strv_extend_strv(&l, add, false);
+ if (paths) {
+ r = strv_extend_strv(&paths, add, true);
if (r < 0)
return r;
} else {
- l = add;
+ /* Small optimization: if paths is NULL (and it usually is), we can simply assign 'add' to it,
+ * and don't have to copy anything */
+ paths = add;
add = NULL;
}
}
if (r < 0)
return r;
- r = patch_root_prefix_strv(l, root);
+ r = patch_root_prefix(&persistent_control, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix(&runtime_control, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix_strv(paths, root);
if (r < 0)
return -ENOMEM;
- p->search_path = strv_uniq(l);
- l = NULL;
+ p->search_path = strv_uniq(paths);
+ paths = NULL;
p->persistent_config = persistent_config;
p->runtime_config = runtime_config;
p->transient = transient;
transient = NULL;
+ p->persistent_control = persistent_control;
+ p->runtime_control = runtime_control;
+ persistent_control = runtime_control = NULL;
+
p->root_dir = root;
root = NULL;
+ p->temporary_dir = tempdir;
+ tempdir = NULL;
+
return 0;
}
p->transient = mfree(p->transient);
+ p->persistent_control = mfree(p->persistent_control);
+ p->runtime_control = mfree(p->runtime_control);
+
p->root_dir = mfree(p->root_dir);
+ p->temporary_dir = mfree(p->temporary_dir);
}
int lookup_paths_reduce(LookupPaths *p) {
assert(p);
+ if (!p->generator || !p->generator_early || !p->generator_late)
+ return -EINVAL;
+
r = mkdir_p_label(p->generator, 0755);
q = mkdir_p_label(p->generator_early, 0755);
if (p->generator)
(void) rmdir(p->generator);
-
if (p->generator_early)
(void) rmdir(p->generator_early);
-
if (p->generator_late)
(void) rmdir(p->generator_late);
}
+
+void lookup_paths_flush_generator(LookupPaths *p) {
+ assert(p);
+
+ /* Flush the generated unit files in full */
+
+ if (p->generator)
+ (void) rm_rf(p->generator, REMOVE_ROOT);
+ if (p->generator_early)
+ (void) rm_rf(p->generator_early, REMOVE_ROOT);
+ if (p->generator_late)
+ (void) rm_rf(p->generator_late, REMOVE_ROOT);
+
+ if (p->temporary_dir)
+ (void) rm_rf(p->temporary_dir, REMOVE_ROOT);
+}
+
+char **generator_binary_paths(UnitFileScope scope) {
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ return strv_new("/run/systemd/system-generators",
+ "/etc/systemd/system-generators",
+ "/usr/local/lib/systemd/system-generators",
+ SYSTEM_GENERATOR_PATH,
+ NULL);
+
+ case UNIT_FILE_GLOBAL:
+ case UNIT_FILE_USER:
+ return strv_new("/run/systemd/user-generators",
+ "/etc/systemd/user-generators",
+ "/usr/local/lib/systemd/user-generators",
+ USER_GENERATOR_PATH,
+ NULL);
+
+ default:
+ assert_not_reached("Hmm, unexpected scope.");
+ }
+}
projects / thirdparty / systemd.git / blobdiff