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-rw-r--r--src/shared/install.c197
1 files changed, 51 insertions, 146 deletions
diff --git a/src/shared/install.c b/src/shared/install.c
index 1e497d1492..2cec6ba76f 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -85,6 +85,7 @@ static int in_search_path(const char *path, char **search) {
static int unit_file_is_generated(const LookupPaths *p, const char *path) {
_cleanup_free_ char *parent = NULL;
+ assert(p);
assert(path);
parent = dirname_malloc(path);
@@ -96,110 +97,27 @@ static int unit_file_is_generated(const LookupPaths *p, const char *path) {
path_equal(p->generator_late, parent);
}
-static int get_config_path(UnitFileScope scope, bool runtime, const char *root_dir, char **ret) {
- char *p = NULL;
- int r;
-
- assert(scope >= 0);
- assert(scope < _UNIT_FILE_SCOPE_MAX);
- assert(ret);
-
- /* This determines where we shall create or remove our
- * installation ("configuration") symlinks */
-
- switch (scope) {
-
- case UNIT_FILE_SYSTEM:
-
- if (runtime)
- p = path_join(root_dir, "/run/systemd/system", NULL);
- else
- p = path_join(root_dir, SYSTEM_CONFIG_UNIT_PATH, NULL);
- break;
-
- case UNIT_FILE_GLOBAL:
-
- if (root_dir)
- return -EINVAL;
-
- if (runtime)
- p = strdup("/run/systemd/user");
- else
- p = strdup(USER_CONFIG_UNIT_PATH);
- break;
-
- case UNIT_FILE_USER:
-
- if (root_dir)
- return -EINVAL;
-
- if (runtime)
- r = user_runtime_dir(&p);
- else
- r = user_config_home(&p);
- if (r < 0)
- return r;
- if (r == 0)
- return -ENOENT;
-
- break;
-
- default:
- assert_not_reached("Bad scope");
- }
-
- if (!p)
- return -ENOMEM;
-
- *ret = p;
- return 0;
-}
-
-static bool is_config_path(UnitFileScope scope, const char *path) {
- int r;
+static int path_is_config(const LookupPaths *p, const char *path) {
+ _cleanup_free_ char *parent = NULL;
- assert(scope >= 0);
- assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(p);
assert(path);
- /* Checks whether the specified path is intended for
- * configuration or is outside of it */
-
- switch (scope) {
-
- case UNIT_FILE_SYSTEM:
- case UNIT_FILE_GLOBAL:
- return path_startswith(path, "/etc") ||
- path_startswith(path, SYSTEM_CONFIG_UNIT_PATH) ||
- path_startswith(path, "/run");
-
-
- case UNIT_FILE_USER: {
- _cleanup_free_ char *p = NULL;
-
- r = user_config_home(&p);
- if (r < 0)
- return r;
- if (r > 0 && path_startswith(path, p))
- return true;
-
- p = mfree(p);
+ /* Checks whether the specified path is intended for configuration or is outside of it. We check both the
+ * top-level directory and the one actually configured. The latter is particularly relevant for cases where we
+ * operate on a root directory. */
- r = user_runtime_dir(&p);
- if (r < 0)
- return r;
- if (r > 0 && path_startswith(path, p))
- return true;
+ if (path_startswith(path, "/etc") || path_startswith(path, "/run"))
+ return true;
- return false;
- }
+ parent = dirname_malloc(path);
+ if (!parent)
+ return -ENOMEM;
- default:
- assert_not_reached("Bad scope");
- }
+ return path_equal(parent, p->persistent_config) ||
+ path_equal(parent, p->runtime_config);
}
-
static int verify_root_dir(UnitFileScope scope, const char **root_dir) {
int r;
@@ -659,24 +577,21 @@ static int find_symlinks(
static int find_symlinks_in_scope(
UnitFileScope scope,
+ const LookupPaths *paths,
const char *root_dir,
const char *name,
UnitFileState *state) {
- _cleanup_free_ char *normal_path = NULL, *runtime_path = NULL;
bool same_name_link_runtime = false, same_name_link = false;
int r;
assert(scope >= 0);
assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(paths);
assert(name);
- /* First look in the normal config path */
- r = get_config_path(scope, false, root_dir, &normal_path);
- if (r < 0)
- return r;
-
- r = find_symlinks(root_dir, name, normal_path, &same_name_link);
+ /* First look in the persistent config path */
+ r = find_symlinks(root_dir, name, paths->persistent_config, &same_name_link);
if (r < 0)
return r;
if (r > 0) {
@@ -685,11 +600,7 @@ static int find_symlinks_in_scope(
}
/* Then look in runtime config path */
- r = get_config_path(scope, true, root_dir, &runtime_path);
- if (r < 0)
- return r;
-
- r = find_symlinks(root_dir, name, runtime_path, &same_name_link_runtime);
+ r = find_symlinks(root_dir, name, paths->runtime_config, &same_name_link_runtime);
if (r < 0)
return r;
if (r > 0) {
@@ -1182,8 +1093,13 @@ static int install_info_traverse(
if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX)
return -ELOOP;
- if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS) && is_config_path(scope, i->path))
- return -ELOOP;
+ if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) {
+ r = path_is_config(paths, i->path);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return -ELOOP;
+ }
r = install_info_follow(c, i, root_dir, flags);
if (r < 0) {
@@ -1514,7 +1430,8 @@ int unit_file_mask(
UnitFileChange **changes,
unsigned *n_changes) {
- _cleanup_free_ char *prefix = NULL;
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ const char *config_path;
char **i;
int r;
@@ -1525,10 +1442,12 @@ int unit_file_mask(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &prefix);
+ r = lookup_paths_init_from_scope(&paths, scope, root_dir);
if (r < 0)
return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
+
STRV_FOREACH(i, files) {
_cleanup_free_ char *path = NULL;
int q;
@@ -1539,7 +1458,7 @@ int unit_file_mask(
continue;
}
- path = path_make_absolute(*i, prefix);
+ path = path_make_absolute(*i, config_path);
if (!path)
return -ENOMEM;
@@ -1559,10 +1478,11 @@ int unit_file_unmask(
UnitFileChange **changes,
unsigned *n_changes) {
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
_cleanup_set_free_free_ Set *remove_symlinks_to = NULL;
- _cleanup_free_ char *config_path = NULL;
_cleanup_free_ char **todo = NULL;
size_t n_todo = 0, n_allocated = 0;
+ const char *config_path;
char **i;
int r, q;
@@ -1573,10 +1493,12 @@ int unit_file_unmask(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &config_path);
+ r = lookup_paths_init_from_scope(&paths, scope, root_dir);
if (r < 0)
return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
+
STRV_FOREACH(i, files) {
_cleanup_free_ char *path = NULL;
@@ -1640,9 +1562,9 @@ int unit_file_link(
unsigned *n_changes) {
_cleanup_lookup_paths_free_ LookupPaths paths = {};
- _cleanup_free_ char *config_path = NULL;
_cleanup_free_ char **todo = NULL;
size_t n_todo = 0, n_allocated = 0;
+ const char *config_path;
char **i;
int r, q;
@@ -1657,9 +1579,7 @@ int unit_file_link(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &config_path);
- if (r < 0)
- return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
STRV_FOREACH(i, files) {
_cleanup_free_ char *full = NULL;
@@ -1729,8 +1649,8 @@ int unit_file_add_dependency(
_cleanup_lookup_paths_free_ LookupPaths paths = {};
_cleanup_(install_context_done) InstallContext c = {};
- _cleanup_free_ char *config_path = NULL;
UnitFileInstallInfo *i, *target_info;
+ const char *config_path;
char **f;
int r;
@@ -1752,9 +1672,7 @@ int unit_file_add_dependency(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &config_path);
- if (r < 0)
- return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
r = install_info_discover(scope, &c, root_dir, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, &target_info);
if (r < 0)
@@ -1808,7 +1726,7 @@ int unit_file_enable(
_cleanup_lookup_paths_free_ LookupPaths paths = {};
_cleanup_(install_context_done) InstallContext c = {};
- _cleanup_free_ char *config_path = NULL;
+ const char *config_path;
UnitFileInstallInfo *i;
char **f;
int r;
@@ -1824,9 +1742,7 @@ int unit_file_enable(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &config_path);
- if (r < 0)
- return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
STRV_FOREACH(f, files) {
r = install_info_discover(scope, &c, root_dir, &paths, *f, SEARCH_LOAD, &i);
@@ -1858,8 +1774,8 @@ int unit_file_disable(
_cleanup_lookup_paths_free_ LookupPaths paths = {};
_cleanup_(install_context_done) InstallContext c = {};
- _cleanup_free_ char *config_path = NULL;
_cleanup_set_free_free_ Set *remove_symlinks_to = NULL;
+ const char *config_path;
char **i;
int r;
@@ -1874,9 +1790,7 @@ int unit_file_disable(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &config_path);
- if (r < 0)
- return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
STRV_FOREACH(i, files) {
if (!unit_name_is_valid(*i, UNIT_NAME_ANY))
@@ -1932,7 +1846,6 @@ int unit_file_set_default(
_cleanup_lookup_paths_free_ LookupPaths paths = {};
_cleanup_(install_context_done) InstallContext c = {};
- _cleanup_free_ char *config_path = NULL;
UnitFileInstallInfo *i;
const char *path;
int r;
@@ -1954,10 +1867,6 @@ int unit_file_set_default(
if (r < 0)
return r;
- r = get_config_path(scope, false, root_dir, &config_path);
- if (r < 0)
- return r;
-
r = install_info_discover(scope, &c, root_dir, &paths, name, 0, &i);
if (r < 0)
return r;
@@ -1966,7 +1875,7 @@ int unit_file_set_default(
if (unit_file_is_generated(&paths, i->path))
return -EADDRNOTAVAIL;
- path = strjoina(config_path, "/" SPECIAL_DEFAULT_TARGET);
+ path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET);
return create_symlink(i->path, path, force, changes, n_changes);
}
@@ -2053,7 +1962,7 @@ int unit_file_lookup_state(
break;
}
- r = find_symlinks_in_scope(scope, root_dir, i->name, &state);
+ r = find_symlinks_in_scope(scope, paths, root_dir, i->name, &state);
if (r < 0)
return r;
if (r == 0) {
@@ -2282,7 +2191,7 @@ int unit_file_preset(
_cleanup_(install_context_done) InstallContext plus = {}, minus = {};
_cleanup_lookup_paths_free_ LookupPaths paths = {};
- _cleanup_free_ char *config_path = NULL;
+ const char *config_path;
char **i;
int r;
@@ -2298,9 +2207,7 @@ int unit_file_preset(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &config_path);
- if (r < 0)
- return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
STRV_FOREACH(i, files) {
if (!unit_name_is_valid(*i, UNIT_NAME_ANY))
@@ -2325,7 +2232,7 @@ int unit_file_preset_all(
_cleanup_(install_context_done) InstallContext plus = {}, minus = {};
_cleanup_lookup_paths_free_ LookupPaths paths = {};
- _cleanup_free_ char *config_path = NULL;
+ const char *config_path = NULL;
char **i;
int r;
@@ -2341,9 +2248,7 @@ int unit_file_preset_all(
if (r < 0)
return r;
- r = get_config_path(scope, runtime, root_dir, &config_path);
- if (r < 0)
- return r;
+ config_path = runtime ? paths.runtime_config : paths.persistent_config;
STRV_FOREACH(i, paths.search_path) {
_cleanup_closedir_ DIR *d = NULL;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-24 03:10:34 +0000