+ if (!path_is_absolute(rvalue)) {
+ log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!(s = new0(PathSpec, 1)))
+ return -ENOMEM;
+
+ if (!(s->path = strdup(rvalue))) {
+ free(s);
+ return -ENOMEM;
+ }
+
+ path_kill_slashes(s->path);
+
+ s->type = b;
+ s->inotify_fd = -1;
+
+ LIST_PREPEND(PathSpec, spec, p->specs, s);
+
+ return 0;
+}
+
+static int config_parse_path_unit(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Path *t = data;
+ int r;
+ DBusError error;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ dbus_error_init(&error);
+
+ if (endswith(rvalue, ".path")) {
+ log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &error, &t->unit)) < 0) {
+ log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
+ dbus_error_free(&error);
+ return 0;
+ }
+
+ return 0;
+}
+
+static int config_parse_socket_service(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Socket *s = data;
+ int r;
+ DBusError error;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ dbus_error_init(&error);
+
+ if (!endswith(rvalue, ".service")) {
+ log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if ((r = manager_load_unit(s->meta.manager, rvalue, NULL, &error, (Unit**) &s->service)) < 0) {
+ log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
+ dbus_error_free(&error);
+ return 0;
+ }
+
+ return 0;
+}
+
+static int config_parse_service_sockets(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Service *s = data;
+ int r;
+ DBusError error;
+ char *state, *w;
+ size_t l;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ dbus_error_init(&error);
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ char *t;
+ Unit *sock;
+
+ if (!(t = strndup(w, l)))
+ return -ENOMEM;
+
+ if (!endswith(t, ".socket")) {
+ log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename, line, rvalue);
+ free(t);
+ continue;
+ }
+
+ r = manager_load_unit(s->meta.manager, t, NULL, &error, &sock);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
+ dbus_error_free(&error);
+ continue;
+ }
+
+ if ((r = set_ensure_allocated(&s->configured_sockets, trivial_hash_func, trivial_compare_func)) < 0)
+ return r;
+
+ if ((r = set_put(s->configured_sockets, sock)) < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int config_parse_env_file(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ FILE *f;
+ int r;
+ char ***env = data;
+ bool ignore = false;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (rvalue[0] == '-') {
+ ignore = true;
+ rvalue++;
+ }
+
+ if (!path_is_absolute(rvalue)) {
+ log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!(f = fopen(rvalue, "re"))) {
+ if (!ignore)
+ log_error("[%s:%u] Failed to open environment file '%s', ignoring: %m", filename, line, rvalue);
+ return 0;
+ }
+
+ while (!feof(f)) {
+ char l[LINE_MAX], *p, *u;
+ char **t;
+
+ if (!fgets(l, sizeof(l), f)) {
+ if (feof(f))
+ break;
+
+ log_error("[%s:%u] Failed to read environment file '%s', ignoring: %m", filename, line, rvalue);
+ r = 0;
+ goto finish;
+ }
+
+ p = strstrip(l);
+
+ if (!*p)
+ continue;
+
+ if (strchr(COMMENTS, *p))
+ continue;
+
+ if (!(u = normalize_env_assignment(p))) {
+ log_error("Out of memory");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ t = strv_append(*env, u);
+ free(u);
+
+ if (!t) {
+ log_error("Out of memory");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ strv_free(*env);
+ *env = t;
+ }
+
+ r = 0;
+
+finish:
+ if (f)
+ fclose(f);
+
+ return r;
+}
+
+static int config_parse_ip_tos(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *ip_tos = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((x = ip_tos_from_string(rvalue)) < 0)
+ if (safe_atoi(rvalue, &x) < 0) {
+ log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *ip_tos = x;
+ return 0;
+}
+
+static int config_parse_condition_path(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = data;
+ bool negate;
+ Condition *c;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((negate = rvalue[0] == '!'))
+ rvalue++;
+
+ if (!path_is_absolute(rvalue)) {
+ log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!(c = condition_new(streq(lvalue, "ConditionPathExists") ? CONDITION_PATH_EXISTS : CONDITION_DIRECTORY_NOT_EMPTY,
+ rvalue, negate)))
+ return -ENOMEM;
+
+ LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
+ return 0;
+}
+
+static int config_parse_condition_kernel(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = data;
+ bool negate;
+ Condition *c;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((negate = rvalue[0] == '!'))
+ rvalue++;
+
+ if (!(c = condition_new(CONDITION_KERNEL_COMMAND_LINE, rvalue, negate)))
+ return -ENOMEM;
+
+ LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
+ return 0;
+}
+
+static int config_parse_condition_virt(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = data;
+ bool negate;
+ Condition *c;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((negate = rvalue[0] == '!'))
+ rvalue++;
+
+ if (!(c = condition_new(CONDITION_VIRTUALIZATION, rvalue, negate)))
+ return -ENOMEM;
+
+ LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
+ return 0;
+}
+
+static int config_parse_condition_null(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = data;
+ Condition *c;
+ bool negate;
+ int b;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((negate = rvalue[0] == '!'))
+ rvalue++;
+
+ if ((b = parse_boolean(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!b)
+ negate = !negate;
+
+ if (!(c = condition_new(CONDITION_NULL, NULL, negate)))
+ return -ENOMEM;
+
+ LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
+ return 0;
+}
+
+static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
+
+#define FOLLOW_MAX 8
+
+static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
+ unsigned c = 0;
+ int fd, r;
+ FILE *f;
+ char *id = NULL;
+
+ assert(filename);
+ assert(*filename);
+ assert(_f);
+ assert(names);
+
+ /* This will update the filename pointer if the loaded file is
+ * reached by a symlink. The old string will be freed. */
+
+ for (;;) {
+ char *target, *name;
+
+ if (c++ >= FOLLOW_MAX)
+ return -ELOOP;
+
+ path_kill_slashes(*filename);
+
+ /* Add the file name we are currently looking at to
+ * the names of this unit, but only if it is a valid
+ * unit name. */
+ name = file_name_from_path(*filename);
+
+ if (unit_name_is_valid(name, false)) {
+ if (!(id = set_get(names, name))) {
+
+ if (!(id = strdup(name)))
+ return -ENOMEM;
+
+ if ((r = set_put(names, id)) < 0) {
+ free(id);
+ return r;
+ }
+ }
+ }
+
+ /* Try to open the file name, but don't if its a symlink */
+ if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
+ break;
+
+ if (errno != ELOOP)
+ return -errno;
+
+ /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
+ if ((r = readlink_and_make_absolute(*filename, &target)) < 0)
+ return r;
+
+ free(*filename);
+ *filename = target;
+ }
+
+ if (!(f = fdopen(fd, "re"))) {
+ r = -errno;
+ close_nointr_nofail(fd);
+ return r;
+ }
+
+ *_f = f;
+ *_final = id;
+ return 0;
+}
+
+static int merge_by_names(Unit **u, Set *names, const char *id) {
+ char *k;
+ int r;
+
+ assert(u);
+ assert(*u);
+ assert(names);
+
+ /* Let's try to add in all symlink names we found */
+ while ((k = set_steal_first(names))) {
+
+ /* First try to merge in the other name into our
+ * unit */
+ if ((r = unit_merge_by_name(*u, k)) < 0) {
+ Unit *other;
+
+ /* Hmm, we couldn't merge the other unit into
+ * ours? Then let's try it the other way
+ * round */