ordered-set.h
parse-util.c
parse-util.h
+ path-lookup.c
+ path-lookup.h
path-util.c
path-util.h
prioq.c
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "alloc-util.h"
+#include "fs-util.h"
+#include "log.h"
+#include "macro.h"
+#include "path-lookup.h"
+#include "path-util.h"
+#include "stat-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "tmpfile-util.h"
+#include "user-util.h"
+
+int xdg_user_runtime_dir(char **ret, const char *suffix) {
+ const char *e;
+ char *j;
+
+ assert(ret);
+ assert(suffix);
+
+ e = getenv("XDG_RUNTIME_DIR");
+ if (!e)
+ return -ENXIO;
+
+ j = strjoin(e, suffix);
+ if (!j)
+ return -ENOMEM;
+
+ *ret = j;
+ return 0;
+}
+
+int xdg_user_config_dir(char **ret, const char *suffix) {
+ const char *e;
+ char *j;
+ int r;
+
+ assert(ret);
+
+ e = getenv("XDG_CONFIG_HOME");
+ if (e)
+ j = strjoin(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;
+}
+
+int xdg_user_data_dir(char **ret, const char *suffix) {
+ const char *e;
+ char *j;
+ int r;
+
+ assert(ret);
+ assert(suffix);
+
+ /* We don't treat /etc/xdg/systemd here as the spec
+ * suggests because we assume that is a link to
+ * /etc/systemd/ anyway. */
+
+ e = getenv("XDG_DATA_HOME");
+ if (e)
+ j = strjoin(e, suffix);
+ else {
+ _cleanup_free_ char *home = NULL;
+
+ r = get_home_dir(&home);
+ if (r < 0)
+ return r;
+
+ j = strjoin(home, "/.local/share", suffix);
+ }
+ if (!j)
+ return -ENOMEM;
+
+ *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
+};
+
+int xdg_user_dirs(char ***ret_config_dirs, char ***ret_data_dirs) {
+ /* Implement the mechanisms defined in
+ *
+ * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
+ *
+ * We look in both the config and the data dirs because we
+ * want to encourage that distributors ship their unit files
+ * as data, and allow overriding as configuration.
+ */
+ const char *e;
+ _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
+
+ e = getenv("XDG_CONFIG_DIRS");
+ if (e)
+ config_dirs = strv_split(e, ":");
+ else
+ config_dirs = strv_new("/etc/xdg");
+ if (!config_dirs)
+ return -ENOMEM;
+
+ e = getenv("XDG_DATA_DIRS");
+ if (e)
+ data_dirs = strv_split(e, ":");
+ else
+ data_dirs = strv_new("/usr/local/share",
+ "/usr/share");
+ if (!data_dirs)
+ return -ENOMEM;
+
+ *ret_config_dirs = TAKE_PTR(config_dirs);
+ *ret_data_dirs = TAKE_PTR(data_dirs);
+
+ return 0;
+}
+
+static char** user_dirs(
+ const char *persistent_config,
+ const char *runtime_config,
+ const char *global_persistent_config,
+ const char *global_runtime_config,
+ const char *generator,
+ const char *generator_early,
+ const char *generator_late,
+ const char *transient,
+ const char *persistent_control,
+ const char *runtime_control) {
+
+ _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
+ _cleanup_free_ char *data_home = NULL;
+ _cleanup_strv_free_ char **res = NULL;
+ int r;
+
+ r = xdg_user_dirs(&config_dirs, &data_dirs);
+ if (r < 0)
+ return NULL;
+
+ r = xdg_user_data_dir(&data_home, "/systemd/user");
+ if (r < 0 && r != -ENXIO)
+ return NULL;
+
+ /* Now merge everything we found. */
+ if (strv_extend(&res, persistent_control) < 0)
+ return NULL;
+
+ if (strv_extend(&res, runtime_control) < 0)
+ return NULL;
+
+ if (strv_extend(&res, transient) < 0)
+ return NULL;
+
+ if (strv_extend(&res, generator_early) < 0)
+ return NULL;
+
+ if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0)
+ return NULL;
+
+ if (strv_extend(&res, persistent_config) < 0)
+ return NULL;
+
+ /* global config has lower priority than the user config of the same type */
+ if (strv_extend(&res, global_persistent_config) < 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 (strv_extend(&res, global_runtime_config) < 0)
+ return NULL;
+
+ if (strv_extend(&res, generator) < 0)
+ return NULL;
+
+ if (strv_extend(&res, data_home) < 0)
+ return NULL;
+
+ if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0)
+ return NULL;
+
+ if (strv_extend_strv(&res, (char**) user_data_unit_paths, false) < 0)
+ return NULL;
+
+ if (strv_extend(&res, generator_late) < 0)
+ return NULL;
+
+ if (path_strv_make_absolute_cwd(res) < 0)
+ return NULL;
+
+ return TAKE_PTR(res);
+}
+
+bool path_is_user_data_dir(const char *path) {
+ assert(path);
+
+ return strv_contains((char**) user_data_unit_paths, path);
+}
+
+bool path_is_user_config_dir(const char *path) {
+ assert(path);
+
+ 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_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));
+
+ if (scope == UNIT_FILE_GLOBAL)
+ return -EOPNOTSUPP;
+
+ if (tempdir)
+ prefix = tempdir;
+ else if (scope == UNIT_FILE_SYSTEM)
+ prefix = "/run/systemd";
+ else {
+ /* UNIT_FILE_USER */
+ const char *e;
+
+ e = getenv("XDG_RUNTIME_DIR");
+ if (!e)
+ return -ENXIO;
+
+ prefix = strjoina(e, "/systemd");
+ }
+
+ x = path_join(prefix, "generator");
+ if (!x)
+ return -ENOMEM;
+
+ y = path_join(prefix, "generator.early");
+ if (!y)
+ return -ENOMEM;
+
+ z = path_join(prefix, "generator.late");
+ if (!z)
+ return -ENOMEM;
+
+ *generator = TAKE_PTR(x);
+ *generator_early = TAKE_PTR(y);
+ *generator_late = TAKE_PTR(z);
+
+ return 0;
+}
+
+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));
+
+ if (scope == UNIT_FILE_GLOBAL)
+ return -EOPNOTSUPP;
+
+ if (tempdir)
+ transient = path_join(tempdir, "transient");
+ else if (scope == UNIT_FILE_SYSTEM)
+ transient = strdup("/run/systemd/transient");
+ else
+ return xdg_user_runtime_dir(ret, "/systemd/transient");
+
+ if (!transient)
+ return -ENOMEM;
+ *ret = transient;
+ return 0;
+}
+
+static int acquire_config_dirs(UnitFileScope scope, char **persistent, char **runtime) {
+ _cleanup_free_ char *a = NULL, *b = NULL;
+ int r;
+
+ assert(persistent);
+ assert(runtime);
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ a = strdup(SYSTEM_CONFIG_UNIT_PATH);
+ b = strdup("/run/systemd/system");
+ break;
+
+ case UNIT_FILE_GLOBAL:
+ a = strdup(USER_CONFIG_UNIT_PATH);
+ b = strdup("/run/systemd/user");
+ break;
+
+ case UNIT_FILE_USER:
+ r = xdg_user_config_dir(&a, "/systemd/user");
+ if (r < 0 && r != -ENXIO)
+ return r;
+
+ r = xdg_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 = TAKE_PTR(a);
+
+ return 0;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope value.");
+ }
+
+ if (!a || !b)
+ return -ENOMEM;
+
+ *persistent = TAKE_PTR(a);
+ *runtime = TAKE_PTR(b);
+
+ 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 = TAKE_PTR(b);
+
+ break;
+ }
+
+ case UNIT_FILE_USER:
+ r = xdg_user_config_dir(&a, "/systemd/user.control");
+ if (r < 0 && r != -ENXIO)
+ return r;
+
+ r = xdg_user_runtime_dir(runtime, "/systemd/user.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 = TAKE_PTR(a);
+
+ return 0;
+}
+
+static int acquire_attached_dirs(
+ UnitFileScope scope,
+ char **ret_persistent,
+ char **ret_runtime) {
+
+ _cleanup_free_ char *a = NULL, *b = NULL;
+
+ assert(ret_persistent);
+ assert(ret_runtime);
+
+ /* Portable services are not available to regular users for now. */
+ if (scope != UNIT_FILE_SYSTEM)
+ return -EOPNOTSUPP;
+
+ a = strdup("/etc/systemd/system.attached");
+ if (!a)
+ return -ENOMEM;
+
+ b = strdup("/run/systemd/system.attached");
+ if (!b)
+ return -ENOMEM;
+
+ *ret_persistent = TAKE_PTR(a);
+ *ret_runtime = TAKE_PTR(b);
+
+ return 0;
+}
+
+static int patch_root_prefix(char **p, const char *root_dir) {
+ char *c;
+
+ assert(p);
+
+ if (!*p)
+ return 0;
+
+ c = path_join(root_dir, *p);
+ if (!c)
+ return -ENOMEM;
+
+ free_and_replace(*p, c);
+ return 0;
+}
+
+static int patch_root_prefix_strv(char **l, const char *root_dir) {
+ char **i;
+ int r;
+
+ if (!root_dir)
+ return 0;
+
+ STRV_FOREACH(i, l) {
+ r = patch_root_prefix(i, root_dir);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int get_paths_from_environ(const char *var, char ***paths, bool *append) {
+ const char *e;
+ int r;
+
+ assert(var);
+ assert(paths);
+ assert(append);
+
+ *append = false;
+
+ e = getenv(var);
+ if (e) {
+ const char *k;
+
+ k = endswith(e, ":");
+ if (k) {
+ e = strndupa(e, k - e);
+ *append = true;
+ }
+
+ /* FIXME: empty components in other places should be rejected. */
+
+ r = path_split_and_make_absolute(e, paths);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+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,
+ *global_persistent_config = NULL, *global_runtime_config = NULL,
+ *generator = NULL, *generator_early = NULL, *generator_late = NULL,
+ *transient = NULL,
+ *persistent_control = NULL, *runtime_control = NULL,
+ *persistent_attached = NULL, *runtime_attached = NULL;
+ bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */
+ _cleanup_strv_free_ char **paths = NULL;
+ int r;
+
+ assert(p);
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+
+#if HAVE_SPLIT_USR
+ flags |= LOOKUP_PATHS_SPLIT_USR;
+#endif
+
+ if (!empty_or_root(root_dir)) {
+ if (scope == UNIT_FILE_USER)
+ return -EINVAL;
+
+ r = is_dir(root_dir, true);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOTDIR;
+
+ root = strdup(root_dir);
+ if (!root)
+ return -ENOMEM;
+ }
+
+ if (flags & LOOKUP_PATHS_TEMPORARY_GENERATED) {
+ r = mkdtemp_malloc("/tmp/systemd-temporary-XXXXXX", &tempdir);
+ if (r < 0)
+ return log_debug_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;
+
+ if (scope == UNIT_FILE_USER) {
+ r = acquire_config_dirs(UNIT_FILE_GLOBAL, &global_persistent_config, &global_runtime_config);
+ if (r < 0)
+ return r;
+ }
+
+ 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;
+
+ /* 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;
+
+ r = acquire_attached_dirs(scope, &persistent_attached, &runtime_attached);
+ if (r < 0 && r != -EOPNOTSUPP)
+ return r;
+
+ /* First priority is whatever has been passed to us via env vars */
+ r = get_paths_from_environ("SYSTEMD_UNIT_PATH", &paths, &append);
+ if (r < 0)
+ return r;
+
+ if (!paths || append) {
+ /* Let's figure something out. */
+
+ _cleanup_strv_free_ char **add = NULL;
+
+ /* For the user units we include share/ in the search
+ * path in order to comply with the XDG basedir spec.
+ * For the system stuff we avoid such nonsense. OTOH
+ * we include /lib in the search path for the system
+ * stuff but avoid it for user stuff. */
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ 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,
+ SYSTEM_CONFIG_UNIT_PATH,
+ "/etc/systemd/system",
+ STRV_IFNOTNULL(persistent_attached),
+ runtime_config,
+ "/run/systemd/system",
+ STRV_IFNOTNULL(runtime_attached),
+ STRV_IFNOTNULL(generator),
+ "/usr/local/lib/systemd/system",
+ SYSTEM_DATA_UNIT_PATH,
+ "/usr/lib/systemd/system",
+ STRV_IFNOTNULL(flags & LOOKUP_PATHS_SPLIT_USR ? "/lib/systemd/system" : NULL),
+ STRV_IFNOTNULL(generator_late));
+ break;
+
+ case UNIT_FILE_GLOBAL:
+ add = strv_new(
+ /* 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,
+ USER_CONFIG_UNIT_PATH,
+ "/etc/systemd/user",
+ runtime_config,
+ "/run/systemd/user",
+ STRV_IFNOTNULL(generator),
+ "/usr/local/share/systemd/user",
+ "/usr/share/systemd/user",
+ "/usr/local/lib/systemd/user",
+ USER_DATA_UNIT_PATH,
+ "/usr/lib/systemd/user",
+ STRV_IFNOTNULL(generator_late));
+ break;
+
+ case UNIT_FILE_USER:
+ add = user_dirs(persistent_config, runtime_config,
+ global_persistent_config, global_runtime_config,
+ generator, generator_early, generator_late,
+ transient,
+ persistent_control, runtime_control);
+ break;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope?");
+ }
+
+ if (!add)
+ return -ENOMEM;
+
+ if (paths) {
+ r = strv_extend_strv(&paths, add, true);
+ if (r < 0)
+ return r;
+ } else
+ /* 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 = TAKE_PTR(add);
+ }
+
+ r = patch_root_prefix(&persistent_config, root);
+ if (r < 0)
+ return r;
+ r = patch_root_prefix(&runtime_config, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix(&generator, root);
+ if (r < 0)
+ return r;
+ r = patch_root_prefix(&generator_early, root);
+ if (r < 0)
+ return r;
+ r = patch_root_prefix(&generator_late, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix(&transient, root);
+ if (r < 0)
+ return r;
+
+ 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(&persistent_attached, root);
+ if (r < 0)
+ return r;
+ r = patch_root_prefix(&runtime_attached, root);
+ if (r < 0)
+ return r;
+
+ r = patch_root_prefix_strv(paths, root);
+ if (r < 0)
+ return -ENOMEM;
+
+ *p = (LookupPaths) {
+ .search_path = strv_uniq(TAKE_PTR(paths)),
+
+ .persistent_config = TAKE_PTR(persistent_config),
+ .runtime_config = TAKE_PTR(runtime_config),
+
+ .generator = TAKE_PTR(generator),
+ .generator_early = TAKE_PTR(generator_early),
+ .generator_late = TAKE_PTR(generator_late),
+
+ .transient = TAKE_PTR(transient),
+
+ .persistent_control = TAKE_PTR(persistent_control),
+ .runtime_control = TAKE_PTR(runtime_control),
+
+ .persistent_attached = TAKE_PTR(persistent_attached),
+ .runtime_attached = TAKE_PTR(runtime_attached),
+
+ .root_dir = TAKE_PTR(root),
+ .temporary_dir = TAKE_PTR(tempdir),
+ };
+
+ return 0;
+}
+
+void lookup_paths_free(LookupPaths *p) {
+ if (!p)
+ return;
+
+ p->search_path = strv_free(p->search_path);
+
+ p->persistent_config = mfree(p->persistent_config);
+ p->runtime_config = mfree(p->runtime_config);
+
+ p->persistent_attached = mfree(p->persistent_attached);
+ p->runtime_attached = mfree(p->runtime_attached);
+
+ p->generator = mfree(p->generator);
+ p->generator_early = mfree(p->generator_early);
+ p->generator_late = mfree(p->generator_late);
+
+ 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);
+}
+
+void lookup_paths_log(LookupPaths *p) {
+ assert(p);
+
+ if (strv_isempty(p->search_path)) {
+ log_debug("Ignoring unit files.");
+ p->search_path = strv_free(p->search_path);
+ } else {
+ _cleanup_free_ char *t;
+
+ t = strv_join(p->search_path, "\n\t");
+ log_debug("Looking for unit files in (higher priority first):\n\t%s", strna(t));
+ }
+}
+
+char **generator_binary_paths(UnitFileScope scope) {
+ bool append = false; /* Add items from SYSTEMD_GENERATOR_PATH before normal directories */
+ _cleanup_strv_free_ char **paths = NULL;
+ int r;
+
+ /* First priority is whatever has been passed to us via env vars */
+ r = get_paths_from_environ("SYSTEMD_GENERATOR_PATH", &paths, &append);
+ if (r < 0)
+ return NULL;
+
+ if (!paths || append) {
+ _cleanup_strv_free_ char **add = NULL;
+
+ switch (scope) {
+
+ case UNIT_FILE_SYSTEM:
+ add = strv_new("/run/systemd/system-generators",
+ "/etc/systemd/system-generators",
+ "/usr/local/lib/systemd/system-generators",
+ SYSTEM_GENERATOR_PATH);
+ break;
+
+ case UNIT_FILE_GLOBAL:
+ case UNIT_FILE_USER:
+ add = strv_new("/run/systemd/user-generators",
+ "/etc/systemd/user-generators",
+ "/usr/local/lib/systemd/user-generators",
+ USER_GENERATOR_PATH);
+ break;
+
+ default:
+ assert_not_reached("Hmm, unexpected scope.");
+ }
+
+ if (!add)
+ return NULL;
+
+ if (paths) {
+ r = strv_extend_strv(&paths, add, true);
+ if (r < 0)
+ return NULL;
+ } else
+ /* 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 = TAKE_PTR(add);
+ }
+
+ return TAKE_PTR(paths);
+}
+
+char **env_generator_binary_paths(bool is_system) {
+ bool append = false; /* Add items from SYSTEMD_ENVIRONMENT_GENERATOR_PATH before normal directories */
+ _cleanup_strv_free_ char **paths = NULL;
+ _cleanup_strv_free_ char **add = NULL;
+ int r;
+
+ /* First priority is whatever has been passed to us via env vars */
+ r = get_paths_from_environ("SYSTEMD_ENVIRONMENT_GENERATOR_PATH", &paths, &append);
+ if (r < 0)
+ return NULL;
+
+ if (!paths || append) {
+ if (is_system)
+ add = strv_new("/run/systemd/system-environment-generators",
+ "/etc/systemd/system-environment-generators",
+ "/usr/local/lib/systemd/system-environment-generators",
+ SYSTEM_ENV_GENERATOR_PATH);
+ else
+ add = strv_new("/run/systemd/user-environment-generators",
+ "/etc/systemd/user-environment-generators",
+ "/usr/local/lib/systemd/user-environment-generators",
+ USER_ENV_GENERATOR_PATH);
+
+ if (!add)
+ return NULL;
+ }
+
+ if (paths) {
+ r = strv_extend_strv(&paths, add, true);
+ if (r < 0)
+ return NULL;
+ } else
+ /* 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 = TAKE_PTR(add);
+
+ return TAKE_PTR(paths);
+}
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include <stdbool.h>
+
+typedef struct LookupPaths LookupPaths;
+
+#include "unit-file.h"
+#include "macro.h"
+
+typedef enum LookupPathsFlags {
+ LOOKUP_PATHS_EXCLUDE_GENERATED = 1 << 0,
+ LOOKUP_PATHS_TEMPORARY_GENERATED = 1 << 1,
+ LOOKUP_PATHS_SPLIT_USR = 1 << 2,
+} LookupPathsFlags;
+
+struct LookupPaths {
+ /* Where we look for unit files. This includes the individual special paths below, but also any vendor
+ * supplied, static unit file paths. */
+ char **search_path;
+
+ /* Where we shall create or remove our installation symlinks, aka "configuration", and where the user/admin
+ * shall place his own unit files. */
+ char *persistent_config;
+ char *runtime_config;
+
+ /* Where units from a portable service image shall be placed. */
+ char *persistent_attached;
+ char *runtime_attached;
+
+ /* Where to place generated unit files (i.e. those a "generator" tool generated). Note the special semantics of
+ * this directory: the generators are flushed each time a "systemctl daemon-reload" is issued. The user should
+ * not alter these directories directly. */
+ char *generator;
+ char *generator_early;
+ char *generator_late;
+
+ /* Where to place transient unit files (i.e. those created dynamically via the bus API). Note the special
+ * semantics of this directory: all units created transiently have their unit files removed as the transient
+ * unit is unloaded. The user should not alter this directory directly. */
+ char *transient;
+
+ /* Where the snippets created by "systemctl set-property" are placed. Note that for transient units, the
+ * snippets are placed in the transient directory though (see above). The user should not alter this directory
+ * directly. */
+ char *persistent_control;
+ char *runtime_control;
+
+ /* The root directory prepended to all items above, or NULL */
+ char *root_dir;
+
+ /* A temporary directory when running in test mode, to be nuked */
+ char *temporary_dir;
+};
+
+int lookup_paths_init(LookupPaths *p, UnitFileScope scope, LookupPathsFlags flags, const char *root_dir);
+
+int xdg_user_dirs(char ***ret_config_dirs, char ***ret_data_dirs);
+int xdg_user_runtime_dir(char **ret, const char *suffix);
+int xdg_user_config_dir(char **ret, const char *suffix);
+int xdg_user_data_dir(char **ret, const char *suffix);
+
+bool path_is_user_data_dir(const char *path);
+bool path_is_user_config_dir(const char *path);
+
+void lookup_paths_log(LookupPaths *p);
+void lookup_paths_free(LookupPaths *p);
+
+char **generator_binary_paths(UnitFileScope scope);
+char **env_generator_binary_paths(bool is_system);
output-mode.h
pager.c
pager.h
- path-lookup.c
- path-lookup.h
pe-header.h
pkcs11-util.c
pkcs11-util.h
+++ /dev/null
-/* SPDX-License-Identifier: LGPL-2.1+ */
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "alloc-util.h"
-#include "fs-util.h"
-#include "log.h"
-#include "macro.h"
-#include "path-lookup.h"
-#include "path-util.h"
-#include "stat-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "tmpfile-util.h"
-#include "user-util.h"
-
-int xdg_user_runtime_dir(char **ret, const char *suffix) {
- const char *e;
- char *j;
-
- assert(ret);
- assert(suffix);
-
- e = getenv("XDG_RUNTIME_DIR");
- if (!e)
- return -ENXIO;
-
- j = strjoin(e, suffix);
- if (!j)
- return -ENOMEM;
-
- *ret = j;
- return 0;
-}
-
-int xdg_user_config_dir(char **ret, const char *suffix) {
- const char *e;
- char *j;
- int r;
-
- assert(ret);
-
- e = getenv("XDG_CONFIG_HOME");
- if (e)
- j = strjoin(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;
-}
-
-int xdg_user_data_dir(char **ret, const char *suffix) {
- const char *e;
- char *j;
- int r;
-
- assert(ret);
- assert(suffix);
-
- /* We don't treat /etc/xdg/systemd here as the spec
- * suggests because we assume that is a link to
- * /etc/systemd/ anyway. */
-
- e = getenv("XDG_DATA_HOME");
- if (e)
- j = strjoin(e, suffix);
- else {
- _cleanup_free_ char *home = NULL;
-
- r = get_home_dir(&home);
- if (r < 0)
- return r;
-
- j = strjoin(home, "/.local/share", suffix);
- }
- if (!j)
- return -ENOMEM;
-
- *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
-};
-
-int xdg_user_dirs(char ***ret_config_dirs, char ***ret_data_dirs) {
- /* Implement the mechanisms defined in
- *
- * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
- *
- * We look in both the config and the data dirs because we
- * want to encourage that distributors ship their unit files
- * as data, and allow overriding as configuration.
- */
- const char *e;
- _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
-
- e = getenv("XDG_CONFIG_DIRS");
- if (e)
- config_dirs = strv_split(e, ":");
- else
- config_dirs = strv_new("/etc/xdg");
- if (!config_dirs)
- return -ENOMEM;
-
- e = getenv("XDG_DATA_DIRS");
- if (e)
- data_dirs = strv_split(e, ":");
- else
- data_dirs = strv_new("/usr/local/share",
- "/usr/share");
- if (!data_dirs)
- return -ENOMEM;
-
- *ret_config_dirs = TAKE_PTR(config_dirs);
- *ret_data_dirs = TAKE_PTR(data_dirs);
-
- return 0;
-}
-
-static char** user_dirs(
- const char *persistent_config,
- const char *runtime_config,
- const char *global_persistent_config,
- const char *global_runtime_config,
- const char *generator,
- const char *generator_early,
- const char *generator_late,
- const char *transient,
- const char *persistent_control,
- const char *runtime_control) {
-
- _cleanup_strv_free_ char **config_dirs = NULL, **data_dirs = NULL;
- _cleanup_free_ char *data_home = NULL;
- _cleanup_strv_free_ char **res = NULL;
- int r;
-
- r = xdg_user_dirs(&config_dirs, &data_dirs);
- if (r < 0)
- return NULL;
-
- r = xdg_user_data_dir(&data_home, "/systemd/user");
- if (r < 0 && r != -ENXIO)
- return NULL;
-
- /* Now merge everything we found. */
- if (strv_extend(&res, persistent_control) < 0)
- return NULL;
-
- if (strv_extend(&res, runtime_control) < 0)
- return NULL;
-
- if (strv_extend(&res, transient) < 0)
- return NULL;
-
- if (strv_extend(&res, generator_early) < 0)
- return NULL;
-
- if (strv_extend_strv_concat(&res, config_dirs, "/systemd/user") < 0)
- return NULL;
-
- if (strv_extend(&res, persistent_config) < 0)
- return NULL;
-
- /* global config has lower priority than the user config of the same type */
- if (strv_extend(&res, global_persistent_config) < 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 (strv_extend(&res, global_runtime_config) < 0)
- return NULL;
-
- if (strv_extend(&res, generator) < 0)
- return NULL;
-
- if (strv_extend(&res, data_home) < 0)
- return NULL;
-
- if (strv_extend_strv_concat(&res, data_dirs, "/systemd/user") < 0)
- return NULL;
-
- if (strv_extend_strv(&res, (char**) user_data_unit_paths, false) < 0)
- return NULL;
-
- if (strv_extend(&res, generator_late) < 0)
- return NULL;
-
- if (path_strv_make_absolute_cwd(res) < 0)
- return NULL;
-
- return TAKE_PTR(res);
-}
-
-bool path_is_user_data_dir(const char *path) {
- assert(path);
-
- return strv_contains((char**) user_data_unit_paths, path);
-}
-
-bool path_is_user_config_dir(const char *path) {
- assert(path);
-
- 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_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));
-
- if (scope == UNIT_FILE_GLOBAL)
- return -EOPNOTSUPP;
-
- if (tempdir)
- prefix = tempdir;
- else if (scope == UNIT_FILE_SYSTEM)
- prefix = "/run/systemd";
- else {
- /* UNIT_FILE_USER */
- const char *e;
-
- e = getenv("XDG_RUNTIME_DIR");
- if (!e)
- return -ENXIO;
-
- prefix = strjoina(e, "/systemd");
- }
-
- x = path_join(prefix, "generator");
- if (!x)
- return -ENOMEM;
-
- y = path_join(prefix, "generator.early");
- if (!y)
- return -ENOMEM;
-
- z = path_join(prefix, "generator.late");
- if (!z)
- return -ENOMEM;
-
- *generator = TAKE_PTR(x);
- *generator_early = TAKE_PTR(y);
- *generator_late = TAKE_PTR(z);
-
- return 0;
-}
-
-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));
-
- if (scope == UNIT_FILE_GLOBAL)
- return -EOPNOTSUPP;
-
- if (tempdir)
- transient = path_join(tempdir, "transient");
- else if (scope == UNIT_FILE_SYSTEM)
- transient = strdup("/run/systemd/transient");
- else
- return xdg_user_runtime_dir(ret, "/systemd/transient");
-
- if (!transient)
- return -ENOMEM;
- *ret = transient;
- return 0;
-}
-
-static int acquire_config_dirs(UnitFileScope scope, char **persistent, char **runtime) {
- _cleanup_free_ char *a = NULL, *b = NULL;
- int r;
-
- assert(persistent);
- assert(runtime);
-
- switch (scope) {
-
- case UNIT_FILE_SYSTEM:
- a = strdup(SYSTEM_CONFIG_UNIT_PATH);
- b = strdup("/run/systemd/system");
- break;
-
- case UNIT_FILE_GLOBAL:
- a = strdup(USER_CONFIG_UNIT_PATH);
- b = strdup("/run/systemd/user");
- break;
-
- case UNIT_FILE_USER:
- r = xdg_user_config_dir(&a, "/systemd/user");
- if (r < 0 && r != -ENXIO)
- return r;
-
- r = xdg_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 = TAKE_PTR(a);
-
- return 0;
-
- default:
- assert_not_reached("Hmm, unexpected scope value.");
- }
-
- if (!a || !b)
- return -ENOMEM;
-
- *persistent = TAKE_PTR(a);
- *runtime = TAKE_PTR(b);
-
- 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 = TAKE_PTR(b);
-
- break;
- }
-
- case UNIT_FILE_USER:
- r = xdg_user_config_dir(&a, "/systemd/user.control");
- if (r < 0 && r != -ENXIO)
- return r;
-
- r = xdg_user_runtime_dir(runtime, "/systemd/user.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 = TAKE_PTR(a);
-
- return 0;
-}
-
-static int acquire_attached_dirs(
- UnitFileScope scope,
- char **ret_persistent,
- char **ret_runtime) {
-
- _cleanup_free_ char *a = NULL, *b = NULL;
-
- assert(ret_persistent);
- assert(ret_runtime);
-
- /* Portable services are not available to regular users for now. */
- if (scope != UNIT_FILE_SYSTEM)
- return -EOPNOTSUPP;
-
- a = strdup("/etc/systemd/system.attached");
- if (!a)
- return -ENOMEM;
-
- b = strdup("/run/systemd/system.attached");
- if (!b)
- return -ENOMEM;
-
- *ret_persistent = TAKE_PTR(a);
- *ret_runtime = TAKE_PTR(b);
-
- return 0;
-}
-
-static int patch_root_prefix(char **p, const char *root_dir) {
- char *c;
-
- assert(p);
-
- if (!*p)
- return 0;
-
- c = path_join(root_dir, *p);
- if (!c)
- return -ENOMEM;
-
- free_and_replace(*p, c);
- return 0;
-}
-
-static int patch_root_prefix_strv(char **l, const char *root_dir) {
- char **i;
- int r;
-
- if (!root_dir)
- return 0;
-
- STRV_FOREACH(i, l) {
- r = patch_root_prefix(i, root_dir);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-static int get_paths_from_environ(const char *var, char ***paths, bool *append) {
- const char *e;
- int r;
-
- assert(var);
- assert(paths);
- assert(append);
-
- *append = false;
-
- e = getenv(var);
- if (e) {
- const char *k;
-
- k = endswith(e, ":");
- if (k) {
- e = strndupa(e, k - e);
- *append = true;
- }
-
- /* FIXME: empty components in other places should be rejected. */
-
- r = path_split_and_make_absolute(e, paths);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-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,
- *global_persistent_config = NULL, *global_runtime_config = NULL,
- *generator = NULL, *generator_early = NULL, *generator_late = NULL,
- *transient = NULL,
- *persistent_control = NULL, *runtime_control = NULL,
- *persistent_attached = NULL, *runtime_attached = NULL;
- bool append = false; /* Add items from SYSTEMD_UNIT_PATH before normal directories */
- _cleanup_strv_free_ char **paths = NULL;
- int r;
-
- assert(p);
- assert(scope >= 0);
- assert(scope < _UNIT_FILE_SCOPE_MAX);
-
-#if HAVE_SPLIT_USR
- flags |= LOOKUP_PATHS_SPLIT_USR;
-#endif
-
- if (!empty_or_root(root_dir)) {
- if (scope == UNIT_FILE_USER)
- return -EINVAL;
-
- r = is_dir(root_dir, true);
- if (r < 0)
- return r;
- if (r == 0)
- return -ENOTDIR;
-
- root = strdup(root_dir);
- if (!root)
- return -ENOMEM;
- }
-
- if (flags & LOOKUP_PATHS_TEMPORARY_GENERATED) {
- r = mkdtemp_malloc("/tmp/systemd-temporary-XXXXXX", &tempdir);
- if (r < 0)
- return log_debug_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;
-
- if (scope == UNIT_FILE_USER) {
- r = acquire_config_dirs(UNIT_FILE_GLOBAL, &global_persistent_config, &global_runtime_config);
- if (r < 0)
- return r;
- }
-
- 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;
-
- /* 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;
-
- r = acquire_attached_dirs(scope, &persistent_attached, &runtime_attached);
- if (r < 0 && r != -EOPNOTSUPP)
- return r;
-
- /* First priority is whatever has been passed to us via env vars */
- r = get_paths_from_environ("SYSTEMD_UNIT_PATH", &paths, &append);
- if (r < 0)
- return r;
-
- if (!paths || append) {
- /* Let's figure something out. */
-
- _cleanup_strv_free_ char **add = NULL;
-
- /* For the user units we include share/ in the search
- * path in order to comply with the XDG basedir spec.
- * For the system stuff we avoid such nonsense. OTOH
- * we include /lib in the search path for the system
- * stuff but avoid it for user stuff. */
-
- switch (scope) {
-
- case UNIT_FILE_SYSTEM:
- 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,
- SYSTEM_CONFIG_UNIT_PATH,
- "/etc/systemd/system",
- STRV_IFNOTNULL(persistent_attached),
- runtime_config,
- "/run/systemd/system",
- STRV_IFNOTNULL(runtime_attached),
- STRV_IFNOTNULL(generator),
- "/usr/local/lib/systemd/system",
- SYSTEM_DATA_UNIT_PATH,
- "/usr/lib/systemd/system",
- STRV_IFNOTNULL(flags & LOOKUP_PATHS_SPLIT_USR ? "/lib/systemd/system" : NULL),
- STRV_IFNOTNULL(generator_late));
- break;
-
- case UNIT_FILE_GLOBAL:
- add = strv_new(
- /* 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,
- USER_CONFIG_UNIT_PATH,
- "/etc/systemd/user",
- runtime_config,
- "/run/systemd/user",
- STRV_IFNOTNULL(generator),
- "/usr/local/share/systemd/user",
- "/usr/share/systemd/user",
- "/usr/local/lib/systemd/user",
- USER_DATA_UNIT_PATH,
- "/usr/lib/systemd/user",
- STRV_IFNOTNULL(generator_late));
- break;
-
- case UNIT_FILE_USER:
- add = user_dirs(persistent_config, runtime_config,
- global_persistent_config, global_runtime_config,
- generator, generator_early, generator_late,
- transient,
- persistent_control, runtime_control);
- break;
-
- default:
- assert_not_reached("Hmm, unexpected scope?");
- }
-
- if (!add)
- return -ENOMEM;
-
- if (paths) {
- r = strv_extend_strv(&paths, add, true);
- if (r < 0)
- return r;
- } else
- /* 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 = TAKE_PTR(add);
- }
-
- r = patch_root_prefix(&persistent_config, root);
- if (r < 0)
- return r;
- r = patch_root_prefix(&runtime_config, root);
- if (r < 0)
- return r;
-
- r = patch_root_prefix(&generator, root);
- if (r < 0)
- return r;
- r = patch_root_prefix(&generator_early, root);
- if (r < 0)
- return r;
- r = patch_root_prefix(&generator_late, root);
- if (r < 0)
- return r;
-
- r = patch_root_prefix(&transient, root);
- if (r < 0)
- return r;
-
- 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(&persistent_attached, root);
- if (r < 0)
- return r;
- r = patch_root_prefix(&runtime_attached, root);
- if (r < 0)
- return r;
-
- r = patch_root_prefix_strv(paths, root);
- if (r < 0)
- return -ENOMEM;
-
- *p = (LookupPaths) {
- .search_path = strv_uniq(TAKE_PTR(paths)),
-
- .persistent_config = TAKE_PTR(persistent_config),
- .runtime_config = TAKE_PTR(runtime_config),
-
- .generator = TAKE_PTR(generator),
- .generator_early = TAKE_PTR(generator_early),
- .generator_late = TAKE_PTR(generator_late),
-
- .transient = TAKE_PTR(transient),
-
- .persistent_control = TAKE_PTR(persistent_control),
- .runtime_control = TAKE_PTR(runtime_control),
-
- .persistent_attached = TAKE_PTR(persistent_attached),
- .runtime_attached = TAKE_PTR(runtime_attached),
-
- .root_dir = TAKE_PTR(root),
- .temporary_dir = TAKE_PTR(tempdir),
- };
-
- return 0;
-}
-
-void lookup_paths_free(LookupPaths *p) {
- if (!p)
- return;
-
- p->search_path = strv_free(p->search_path);
-
- p->persistent_config = mfree(p->persistent_config);
- p->runtime_config = mfree(p->runtime_config);
-
- p->persistent_attached = mfree(p->persistent_attached);
- p->runtime_attached = mfree(p->runtime_attached);
-
- p->generator = mfree(p->generator);
- p->generator_early = mfree(p->generator_early);
- p->generator_late = mfree(p->generator_late);
-
- 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);
-}
-
-void lookup_paths_log(LookupPaths *p) {
- assert(p);
-
- if (strv_isempty(p->search_path)) {
- log_debug("Ignoring unit files.");
- p->search_path = strv_free(p->search_path);
- } else {
- _cleanup_free_ char *t;
-
- t = strv_join(p->search_path, "\n\t");
- log_debug("Looking for unit files in (higher priority first):\n\t%s", strna(t));
- }
-}
-
-char **generator_binary_paths(UnitFileScope scope) {
- bool append = false; /* Add items from SYSTEMD_GENERATOR_PATH before normal directories */
- _cleanup_strv_free_ char **paths = NULL;
- int r;
-
- /* First priority is whatever has been passed to us via env vars */
- r = get_paths_from_environ("SYSTEMD_GENERATOR_PATH", &paths, &append);
- if (r < 0)
- return NULL;
-
- if (!paths || append) {
- _cleanup_strv_free_ char **add = NULL;
-
- switch (scope) {
-
- case UNIT_FILE_SYSTEM:
- add = strv_new("/run/systemd/system-generators",
- "/etc/systemd/system-generators",
- "/usr/local/lib/systemd/system-generators",
- SYSTEM_GENERATOR_PATH);
- break;
-
- case UNIT_FILE_GLOBAL:
- case UNIT_FILE_USER:
- add = strv_new("/run/systemd/user-generators",
- "/etc/systemd/user-generators",
- "/usr/local/lib/systemd/user-generators",
- USER_GENERATOR_PATH);
- break;
-
- default:
- assert_not_reached("Hmm, unexpected scope.");
- }
-
- if (!add)
- return NULL;
-
- if (paths) {
- r = strv_extend_strv(&paths, add, true);
- if (r < 0)
- return NULL;
- } else
- /* 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 = TAKE_PTR(add);
- }
-
- return TAKE_PTR(paths);
-}
-
-char **env_generator_binary_paths(bool is_system) {
- bool append = false; /* Add items from SYSTEMD_ENVIRONMENT_GENERATOR_PATH before normal directories */
- _cleanup_strv_free_ char **paths = NULL;
- _cleanup_strv_free_ char **add = NULL;
- int r;
-
- /* First priority is whatever has been passed to us via env vars */
- r = get_paths_from_environ("SYSTEMD_ENVIRONMENT_GENERATOR_PATH", &paths, &append);
- if (r < 0)
- return NULL;
-
- if (!paths || append) {
- if (is_system)
- add = strv_new("/run/systemd/system-environment-generators",
- "/etc/systemd/system-environment-generators",
- "/usr/local/lib/systemd/system-environment-generators",
- SYSTEM_ENV_GENERATOR_PATH);
- else
- add = strv_new("/run/systemd/user-environment-generators",
- "/etc/systemd/user-environment-generators",
- "/usr/local/lib/systemd/user-environment-generators",
- USER_ENV_GENERATOR_PATH);
-
- if (!add)
- return NULL;
- }
-
- if (paths) {
- r = strv_extend_strv(&paths, add, true);
- if (r < 0)
- return NULL;
- } else
- /* 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 = TAKE_PTR(add);
-
- return TAKE_PTR(paths);
-}
+++ /dev/null
-/* SPDX-License-Identifier: LGPL-2.1+ */
-#pragma once
-
-#include <stdbool.h>
-
-typedef struct LookupPaths LookupPaths;
-
-#include "unit-file.h"
-#include "macro.h"
-
-typedef enum LookupPathsFlags {
- LOOKUP_PATHS_EXCLUDE_GENERATED = 1 << 0,
- LOOKUP_PATHS_TEMPORARY_GENERATED = 1 << 1,
- LOOKUP_PATHS_SPLIT_USR = 1 << 2,
-} LookupPathsFlags;
-
-struct LookupPaths {
- /* Where we look for unit files. This includes the individual special paths below, but also any vendor
- * supplied, static unit file paths. */
- char **search_path;
-
- /* Where we shall create or remove our installation symlinks, aka "configuration", and where the user/admin
- * shall place his own unit files. */
- char *persistent_config;
- char *runtime_config;
-
- /* Where units from a portable service image shall be placed. */
- char *persistent_attached;
- char *runtime_attached;
-
- /* Where to place generated unit files (i.e. those a "generator" tool generated). Note the special semantics of
- * this directory: the generators are flushed each time a "systemctl daemon-reload" is issued. The user should
- * not alter these directories directly. */
- char *generator;
- char *generator_early;
- char *generator_late;
-
- /* Where to place transient unit files (i.e. those created dynamically via the bus API). Note the special
- * semantics of this directory: all units created transiently have their unit files removed as the transient
- * unit is unloaded. The user should not alter this directory directly. */
- char *transient;
-
- /* Where the snippets created by "systemctl set-property" are placed. Note that for transient units, the
- * snippets are placed in the transient directory though (see above). The user should not alter this directory
- * directly. */
- char *persistent_control;
- char *runtime_control;
-
- /* The root directory prepended to all items above, or NULL */
- char *root_dir;
-
- /* A temporary directory when running in test mode, to be nuked */
- char *temporary_dir;
-};
-
-int lookup_paths_init(LookupPaths *p, UnitFileScope scope, LookupPathsFlags flags, const char *root_dir);
-
-int xdg_user_dirs(char ***ret_config_dirs, char ***ret_data_dirs);
-int xdg_user_runtime_dir(char **ret, const char *suffix);
-int xdg_user_config_dir(char **ret, const char *suffix);
-int xdg_user_data_dir(char **ret, const char *suffix);
-
-bool path_is_user_data_dir(const char *path);
-bool path_is_user_config_dir(const char *path);
-
-void lookup_paths_log(LookupPaths *p);
-void lookup_paths_free(LookupPaths *p);
-
-char **generator_binary_paths(UnitFileScope scope);
-char **env_generator_binary_paths(bool is_system);
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