diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/shared/install.c | 119 | ||||
-rw-r--r-- | src/test/test-install-root.c | 23 |
2 files changed, 107 insertions, 35 deletions
diff --git a/src/shared/install.c b/src/shared/install.c index 975a789ebe..b938507587 100644 --- a/src/shared/install.c +++ b/src/shared/install.c @@ -208,7 +208,7 @@ static int path_is_control(const LookupPaths *p, const char *path) { path_equal_ptr(parent, p->runtime_control); } -static int path_is_config(const LookupPaths *p, const char *path) { +static int path_is_config(const LookupPaths *p, const char *path, bool check_parent) { _cleanup_free_ char *parent = NULL; assert(p); @@ -217,15 +217,19 @@ static int path_is_config(const LookupPaths *p, const char *path) { /* Note that we do *not* have generic checks for /etc or /run in place, since with * them we couldn't discern configuration from transient or generated units */ - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; + if (check_parent) { + parent = dirname_malloc(path); + if (!parent) + return -ENOMEM; - return path_equal_ptr(parent, p->persistent_config) || - path_equal_ptr(parent, p->runtime_config); + path = parent; + } + + return path_equal_ptr(path, p->persistent_config) || + path_equal_ptr(path, p->runtime_config); } -static int path_is_runtime(const LookupPaths *p, const char *path) { +static int path_is_runtime(const LookupPaths *p, const char *path, bool check_parent) { _cleanup_free_ char *parent = NULL; const char *rpath; @@ -239,16 +243,20 @@ static int path_is_runtime(const LookupPaths *p, const char *path) { if (rpath && path_startswith(rpath, "/run")) return true; - parent = dirname_malloc(path); - if (!parent) - return -ENOMEM; + if (check_parent) { + parent = dirname_malloc(path); + if (!parent) + return -ENOMEM; - return path_equal_ptr(parent, p->runtime_config) || - path_equal_ptr(parent, p->generator) || - path_equal_ptr(parent, p->generator_early) || - path_equal_ptr(parent, p->generator_late) || - path_equal_ptr(parent, p->transient) || - path_equal_ptr(parent, p->runtime_control); + path = parent; + } + + return path_equal_ptr(path, p->runtime_config) || + path_equal_ptr(path, p->generator) || + path_equal_ptr(path, p->generator_early) || + path_equal_ptr(path, p->generator_late) || + path_equal_ptr(path, p->transient) || + path_equal_ptr(path, p->runtime_control); } static int path_is_vendor(const LookupPaths *p, const char *path) { @@ -826,7 +834,9 @@ static int find_symlinks_in_scope( const char *name, UnitFileState *state) { - bool same_name_link_runtime = false, same_name_link = false; + bool same_name_link_runtime = false, same_name_link_config = false; + bool enabled_in_runtime = false, enabled_at_all = false; + char **p; int r; assert(scope >= 0); @@ -834,27 +844,66 @@ static int find_symlinks_in_scope( assert(paths); assert(name); - /* First look in the persistent config path */ - r = find_symlinks(paths->root_dir, name, paths->persistent_config, paths, &same_name_link); - if (r < 0) - return r; - if (r > 0) { - *state = UNIT_FILE_ENABLED; - return r; + STRV_FOREACH(p, paths->search_path) { + bool same_name_link = false; + + r = find_symlinks(paths->root_dir, name, *p, paths, &same_name_link); + if (r < 0) + return r; + if (r > 0) { + /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ + + r = path_is_config(paths, *p, false); + if (r < 0) + return r; + if (r > 0) { + /* This is the best outcome, let's return it immediately. */ + *state = UNIT_FILE_ENABLED; + return 1; + } + + r = path_is_runtime(paths, *p, false); + if (r < 0) + return r; + if (r > 0) + enabled_in_runtime = true; + else + enabled_at_all = true; + + } else if (same_name_link) { + + r = path_is_config(paths, *p, false); + if (r < 0) + return r; + if (r > 0) + same_name_link_config = true; + else { + r = path_is_runtime(paths, *p, false); + if (r < 0) + return r; + if (r > 0) + same_name_link_runtime = true; + } + } } - /* Then look in runtime config path */ - r = find_symlinks(paths->root_dir, name, paths->runtime_config, paths, &same_name_link_runtime); - if (r < 0) - return r; - if (r > 0) { + if (enabled_in_runtime) { *state = UNIT_FILE_ENABLED_RUNTIME; - return r; + return 1; + } + + /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path + * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only + * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate + * something, and hence are a much stronger concept. */ + if (enabled_at_all && unit_name_is_valid(name, UNIT_NAME_INSTANCE)) { + *state = UNIT_FILE_STATIC; + return 1; } /* Hmm, we didn't find it, but maybe we found the same name * link? */ - if (same_name_link) { + if (same_name_link_config) { *state = UNIT_FILE_LINKED; return 1; } @@ -1409,7 +1458,7 @@ static int install_info_traverse( return -ELOOP; if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { - r = path_is_config(paths, i->path); + r = path_is_config(paths, i->path, true); if (r < 0) return r; if (r > 0) @@ -2040,7 +2089,7 @@ static int path_shall_revert(const LookupPaths *paths, const char *path) { /* Checks whether the path is one where the drop-in directories shall be removed. */ - r = path_is_config(paths, path); + r = path_is_config(paths, path, true); if (r != 0) return r; @@ -2148,7 +2197,7 @@ int unit_file_revert( if (errno != ENOENT) return -errno; } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { - r = path_is_config(&paths, path); + r = path_is_config(&paths, path, true); if (r < 0) return r; if (r > 0) { @@ -2494,7 +2543,7 @@ static int unit_file_lookup_state( switch (i->type) { case UNIT_FILE_TYPE_MASKED: - r = path_is_runtime(paths, i->path); + r = path_is_runtime(paths, i->path, true); if (r < 0) return r; diff --git a/src/test/test-install-root.c b/src/test/test-install-root.c index d0bc8004f3..575401cb91 100644 --- a/src/test/test-install-root.c +++ b/src/test/test-install-root.c @@ -736,6 +736,28 @@ static void test_preset_order(const char *root) { assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "prefix-2.service", &state) >= 0 && state == UNIT_FILE_DISABLED); } +static void test_static_instance(const char *root) { + UnitFileState state; + const char *p; + + assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "static-instance@.service", &state) == -ENOENT); + assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "static-instance@foo.service", &state) == -ENOENT); + + p = strjoina(root, "/usr/lib/systemd/system/static-instance@.service"); + assert_se(write_string_file(p, + "[Install]\n" + "WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0); + + assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "static-instance@.service", &state) >= 0 && state == UNIT_FILE_DISABLED); + assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "static-instance@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED); + + p = strjoina(root, "/usr/lib/systemd/system/static-instance@foo.service"); + assert_se(symlink("static-instance@.service", p) >= 0); + + assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "static-instance@.service", &state) >= 0 && state == UNIT_FILE_DISABLED); + assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "static-instance@foo.service", &state) >= 0 && state == UNIT_FILE_STATIC); +} + int main(int argc, char *argv[]) { char root[] = "/tmp/rootXXXXXX"; const char *p; @@ -766,6 +788,7 @@ int main(int argc, char *argv[]) { test_preset_and_list(root); test_preset_order(root); test_revert(root); + test_static_instance(root); assert_se(rm_rf(root, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0); |