+ if (!dev)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ interface_set_l3_dev(iface, dev);
+ if (device_claim(&iface->l3_dev) < 0)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ device_set_present(dev, true);
+
+ interface_update_start(iface);
+ }
+
+ proto_apply_ip_settings(iface, data, addr_ext);
+
+ if ((cur = tb[NOTIFY_ROUTES]) != NULL)
+ proto_shell_parse_route_list(state->proto.iface, cur, false);
+
+ if ((cur = tb[NOTIFY_ROUTES6]) != NULL)
+ proto_shell_parse_route_list(state->proto.iface, cur, true);
+
+ if ((cur = tb[NOTIFY_DNS]))
+ interface_add_dns_server_list(&iface->proto_ip, cur);
+
+ if ((cur = tb[NOTIFY_DNS_SEARCH]))
+ interface_add_dns_search_list(&iface->proto_ip, cur);
+
+ if ((cur = tb[NOTIFY_DATA]))
+ proto_shell_parse_data(state->proto.iface, cur);
+
+ interface_update_complete(state->proto.iface);
+
+ if (!keep)
+ state->proto.proto_event(&state->proto, IFPEV_UP);
+ state->sm = S_IDLE;
+
+ return 0;
+}
+
+static bool
+fill_string_list(struct blob_attr *attr, char **argv, int max)
+{
+ struct blob_attr *cur;
+ int argc = 0;
+ int rem;
+
+ if (!attr)
+ goto out;
+
+ blobmsg_for_each_attr(cur, attr, rem) {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+ return false;
+
+ if (!blobmsg_check_attr(cur, NULL))
+ return false;
+
+ argv[argc++] = blobmsg_data(cur);
+ if (argc == max - 1)
+ return false;
+ }
+
+out:
+ argv[argc] = NULL;
+ return true;
+}
+
+static int
+proto_shell_run_command(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ static char *argv[64];
+ static char *env[32];
+
+ if (!tb[NOTIFY_COMMAND])
+ goto error;
+
+ if (!fill_string_list(tb[NOTIFY_COMMAND], argv, ARRAY_SIZE(argv)))
+ goto error;
+
+ if (!fill_string_list(tb[NOTIFY_ENV], env, ARRAY_SIZE(env)))
+ goto error;
+
+ netifd_start_process((const char **) argv, (char **) env, &state->proto_task);
+
+ return 0;
+
+error:
+ return UBUS_STATUS_INVALID_ARGUMENT;
+}
+
+static int
+proto_shell_kill_command(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ unsigned int signal = ~0;
+
+ if (tb[NOTIFY_SIGNAL])
+ signal = blobmsg_get_u32(tb[NOTIFY_SIGNAL]);
+
+ if (signal > 31)
+ signal = SIGTERM;
+
+ if (state->proto_task.uloop.pending) {
+ state->proto_task_killed = true;
+ kill(state->proto_task.uloop.pid, signal);
+ }
+
+ return 0;
+}
+
+static int
+proto_shell_notify_error(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ struct blob_attr *cur;
+ char *data[16];
+ int n_data = 0;
+ int rem;
+
+ if (!tb[NOTIFY_ERROR])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ blobmsg_for_each_attr(cur, tb[NOTIFY_ERROR], rem) {
+ if (n_data + 1 == ARRAY_SIZE(data))
+ goto error;
+
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+ goto error;
+
+ if (!blobmsg_check_attr(cur, NULL))
+ goto error;
+
+ data[n_data++] = blobmsg_data(cur);
+ }
+
+ if (!n_data)
+ goto error;
+
+ interface_add_error(state->proto.iface, state->handler->proto.name,
+ data[0], (const char **) &data[1], n_data - 1);
+
+ return 0;
+
+error:
+ return UBUS_STATUS_INVALID_ARGUMENT;
+}
+
+static int
+proto_shell_block_restart(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ state->proto.iface->autostart = false;
+ return 0;
+}
+
+static int
+proto_shell_set_available(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ if (!tb[NOTIFY_AVAILABLE])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ interface_set_available(state->proto.iface, blobmsg_get_bool(tb[NOTIFY_AVAILABLE]));
+ return 0;
+}
+
+static int
+proto_shell_add_host_dependency(struct proto_shell_state *state, struct blob_attr **tb)
+{
+ struct proto_shell_dependency *dep;
+ struct blob_attr *host = tb[NOTIFY_HOST];
+ struct blob_attr *ifname_a = tb[NOTIFY_IFNAME];
+ const char *ifname_str = ifname_a ? blobmsg_data(ifname_a) : "";
+ char *ifname;
+
+ if (!host)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ dep = calloc_a(sizeof(*dep), &ifname, strlen(ifname_str) + 1);
+ if (inet_pton(AF_INET, blobmsg_data(host), &dep->host) < 1) {
+ if (inet_pton(AF_INET6, blobmsg_data(host), &dep->host) < 1) {
+ free(dep);
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ } else {
+ dep->v6 = true;
+ }
+ }
+
+ dep->proto = state;
+ dep->interface = strcpy(ifname, ifname_str);
+
+ dep->dep.cb = proto_shell_if_up_cb;
+ interface_add_user(&dep->dep, NULL);
+ list_add(&dep->list, &state->deps);
+ proto_shell_update_host_dep(dep);
+ if (!dep->dep.iface)
+ return UBUS_STATUS_NOT_FOUND;
+
+ return 0;
+}
+
+static int
+proto_shell_setup_failed(struct proto_shell_state *state)
+{
+ switch (state->sm) {
+ case S_IDLE:
+ state->proto.proto_event(&state->proto, IFPEV_LINK_LOST);
+ /* fall through */
+ case S_SETUP:
+ proto_shell_handler(&state->proto, PROTO_CMD_TEARDOWN, false);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static int
+proto_shell_notify(struct interface_proto_state *proto, struct blob_attr *attr)
+{
+ struct proto_shell_state *state;
+ struct blob_attr *tb[__NOTIFY_LAST];
+
+ state = container_of(proto, struct proto_shell_state, proto);
+
+ blobmsg_parse(notify_attr, __NOTIFY_LAST, tb, blob_data(attr), blob_len(attr));
+ if (!tb[NOTIFY_ACTION])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ switch(blobmsg_get_u32(tb[NOTIFY_ACTION])) {
+ case 0:
+ return proto_shell_update_link(state, attr, tb);
+ case 1:
+ return proto_shell_run_command(state, tb);
+ case 2:
+ return proto_shell_kill_command(state, tb);
+ case 3:
+ return proto_shell_notify_error(state, tb);
+ case 4:
+ return proto_shell_block_restart(state, tb);
+ case 5:
+ return proto_shell_set_available(state, tb);
+ case 6:
+ return proto_shell_add_host_dependency(state, tb);
+ case 7:
+ return proto_shell_setup_failed(state);
+ default:
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ }
+}
+
+static struct interface_proto_state *
+proto_shell_attach(const struct proto_handler *h, struct interface *iface,
+ struct blob_attr *attr)
+{
+ struct proto_shell_state *state;
+
+ state = calloc(1, sizeof(*state));
+ INIT_LIST_HEAD(&state->deps);
+
+ state->config = malloc(blob_pad_len(attr));
+ if (!state->config)
+ goto error;
+
+ memcpy(state->config, attr, blob_pad_len(attr));
+ state->proto.free = proto_shell_free;
+ state->proto.notify = proto_shell_notify;
+ state->proto.cb = proto_shell_handler;
+ state->teardown_timeout.cb = proto_shell_teardown_timeout_cb;
+ state->script_task.cb = proto_shell_script_cb;
+ state->script_task.dir_fd = proto_fd;
+ state->script_task.log_prefix = iface->name;
+ state->proto_task.cb = proto_shell_task_cb;
+ state->proto_task.dir_fd = proto_fd;
+ state->proto_task.log_prefix = iface->name;
+ state->handler = container_of(h, struct proto_shell_handler, proto);
+
+ return &state->proto;
+
+error:
+ free(state);
+ return NULL;
+}
+
+static void
+proto_shell_add_handler(const char *script, const char *name, json_object *obj)
+{
+ struct proto_shell_handler *handler;
+ struct proto_handler *proto;
+ json_object *config, *tmp;
+ char *proto_name, *script_name;
+
+ handler = calloc_a(sizeof(*handler),
+ &proto_name, strlen(name) + 1,
+ &script_name, strlen(script) + 1);
+ if (!handler)
+ return;
+
+ handler->script_name = strcpy(script_name, script);
+
+ proto = &handler->proto;
+ proto->name = strcpy(proto_name, name);
+ proto->config_params = &handler->config;
+ proto->attach = proto_shell_attach;
+
+ tmp = json_get_field(obj, "no-device", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_NODEV;
+
+ tmp = json_get_field(obj, "available", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_INIT_AVAILABLE;
+
+ tmp = json_get_field(obj, "renew-handler", json_type_boolean);
+ if (tmp && json_object_get_boolean(tmp))
+ handler->proto.flags |= PROTO_FLAG_RENEW_AVAILABLE;
+
+ config = json_get_field(obj, "config", json_type_array);
+ if (config)
+ handler->config_buf = netifd_handler_parse_config(&handler->config, config);
+
+ DPRINTF("Add handler for script %s: %s\n", script, proto->name);
+ add_proto_handler(proto);
+}
+
+void proto_shell_init(void)
+{
+ proto_fd = netifd_open_subdir("proto");
+ if (proto_fd < 0)
+ return;