#include "proto.h"
#include "ubus.h"
#include "system.h"
+#include "wireless.h"
-static struct ubus_context *ctx = NULL;
+struct ubus_context *ubus_ctx = NULL;
static struct blob_buf b;
static const char *ubus_path;
static void
netifd_ubus_add_fd(void)
{
- ubus_add_uloop(ctx);
- system_fd_set_cloexec(ctx->sock.fd);
+ ubus_add_uloop(ubus_ctx);
+ system_fd_set_cloexec(ubus_ctx->sock.fd);
}
static void
};
int t = 2;
- if (ubus_reconnect(ctx, ubus_path) != 0) {
+ if (ubus_reconnect(ubus_ctx, ubus_path) != 0) {
DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
uloop_timeout_set(&retry, t * 1000);
return;
}
- DPRINTF("reconnected to ubus, new id: %08x\n", ctx->local_id);
+ DPRINTF("reconnected to ubus, new id: %08x\n", ubus_ctx->local_id);
netifd_ubus_add_fd();
}
static void netifd_add_object(struct ubus_object *obj)
{
- int ret = ubus_add_object(ctx, obj);
+ int ret = ubus_add_object(ubus_ctx, obj);
if (ret != 0)
fprintf(stderr, "Failed to publish object '%s': %s\n", obj->name, ubus_strerror(ret));
netifd_add_object(&iface_object);
}
+static struct wireless_device *
+get_wdev(struct blob_attr *msg, int *ret)
+{
+ struct blobmsg_policy wdev_policy = {
+ .name = "device",
+ .type = BLOBMSG_TYPE_STRING,
+ };
+ struct blob_attr *dev_attr;
+ struct wireless_device *wdev = NULL;
+
+
+ blobmsg_parse(&wdev_policy, 1, &dev_attr, blob_data(msg), blob_len(msg));
+ if (!dev_attr) {
+ *ret = UBUS_STATUS_INVALID_ARGUMENT;
+ return NULL;
+ }
+
+ wdev = vlist_find(&wireless_devices, blobmsg_data(dev_attr), wdev, node);
+ if (!wdev) {
+ *ret = UBUS_STATUS_NOT_FOUND;
+ return NULL;
+ }
+
+ *ret = 0;
+ return wdev;
+}
+
+static int
+netifd_handle_wdev_up(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct wireless_device *wdev;
+ int ret;
+
+ wdev = get_wdev(msg, &ret);
+ if (!wdev)
+ return ret;
+
+ wireless_device_set_up(wdev);
+ return 0;
+}
+
+static int
+netifd_handle_wdev_down(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct wireless_device *wdev;
+ int ret;
+
+ wdev = get_wdev(msg, &ret);
+ if (!wdev)
+ return ret;
+
+ wireless_device_set_down(wdev);
+ return 0;
+}
+
+static int
+netifd_handle_wdev_status(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct wireless_device *wdev;
+ int ret;
+
+ wdev = get_wdev(msg, &ret);
+ if (ret == UBUS_STATUS_NOT_FOUND)
+ return ret;
+
+ blob_buf_init(&b, 0);
+ if (wdev) {
+ wireless_device_status(wdev, &b);
+ } else {
+ vlist_for_each_element(&wireless_devices, wdev, node)
+ wireless_device_status(wdev, &b);
+ }
+ ubus_send_reply(ctx, req, b.head);
+ return 0;
+}
+
+static int
+netifd_handle_wdev_notify(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct wireless_device *wdev;
+ int ret;
+
+ wdev = get_wdev(msg, &ret);
+ if (!wdev)
+ return ret;
+
+ return wireless_device_notify(wdev, msg, req);
+}
+
+static struct ubus_method wireless_object_methods[] = {
+ { .name = "up", .handler = netifd_handle_wdev_up },
+ { .name = "down", .handler = netifd_handle_wdev_down },
+ { .name = "status", .handler = netifd_handle_wdev_status },
+ { .name = "notify", .handler = netifd_handle_wdev_notify },
+};
+
+static struct ubus_object_type wireless_object_type =
+ UBUS_OBJECT_TYPE("netifd_iface", wireless_object_methods);
+
+
+static struct ubus_object wireless_object = {
+ .name = "network.wireless",
+ .type = &wireless_object_type,
+ .methods = wireless_object_methods,
+ .n_methods = ARRAY_SIZE(wireless_object_methods),
+};
+
int
netifd_ubus_init(const char *path)
{
uloop_init();
ubus_path = path;
- ctx = ubus_connect(path);
- if (!ctx)
+ ubus_ctx = ubus_connect(path);
+ if (!ubus_ctx)
return -EIO;
- DPRINTF("connected as %08x\n", ctx->local_id);
- ctx->connection_lost = netifd_ubus_connection_lost;
+ DPRINTF("connected as %08x\n", ubus_ctx->local_id);
+ ubus_ctx->connection_lost = netifd_ubus_connection_lost;
netifd_ubus_add_fd();
netifd_add_object(&main_object);
netifd_add_object(&dev_object);
+ netifd_add_object(&wireless_object);
netifd_add_iface_object();
return 0;
void
netifd_ubus_done(void)
{
- ubus_free(ctx);
+ ubus_free(ubus_ctx);
}
void
blob_buf_init(&b, 0);
blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
blobmsg_add_string(&b, "interface", iface->name);
- ubus_send_event(ctx, "network.interface", b.head);
+ ubus_send_event(ubus_ctx, "network.interface", b.head);
}
void
blob_buf_init(&b, 0);
blobmsg_add_string(&b, "interface", iface->name);
netifd_dump_status(iface);
- ubus_notify(ctx, &iface_object, event, b.head, -1);
- ubus_notify(ctx, &iface->ubus, event, b.head, -1);
+ ubus_notify(ubus_ctx, &iface_object, event, b.head, -1);
+ ubus_notify(ubus_ctx, &iface->ubus, event, b.head, -1);
}
void
obj->type = &iface_object_type;
obj->methods = iface_object_methods;
obj->n_methods = ARRAY_SIZE(iface_object_methods);
- if (ubus_add_object(ctx, &iface->ubus)) {
+ if (ubus_add_object(ubus_ctx, &iface->ubus)) {
DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
free(name);
obj->name = NULL;
if (!iface->ubus.name)
return;
- ubus_remove_object(ctx, &iface->ubus);
+ ubus_remove_object(ubus_ctx, &iface->ubus);
free((void *) iface->ubus.name);
}
--- /dev/null
+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <signal.h>
+#include "netifd.h"
+#include "wireless.h"
+#include "handler.h"
+#include "ubus.h"
+
+#define WIRELESS_SETUP_RETRY 3
+
+struct vlist_tree wireless_devices;
+struct avl_tree wireless_drivers;
+static struct blob_buf b;
+static int drv_fd;
+
+static const struct blobmsg_policy wdev_policy =
+ { .name = "disabled", .type = BLOBMSG_TYPE_BOOL };
+
+static const struct uci_blob_param_list wdev_param = {
+ .n_params = 1,
+ .params = &wdev_policy,
+};
+
+enum {
+ VIF_ATTR_DISABLED,
+ VIF_ATTR_NETWORK,
+ __VIF_ATTR_MAX,
+};
+
+static const struct blobmsg_policy vif_policy[__VIF_ATTR_MAX] = {
+ [VIF_ATTR_DISABLED] = { .name = "disabled", .type = BLOBMSG_TYPE_BOOL },
+ [VIF_ATTR_NETWORK] = { .name = "network", .type = BLOBMSG_TYPE_STRING },
+};
+
+static const struct uci_blob_param_list vif_param = {
+ .n_params = ARRAY_SIZE(vif_policy),
+ .params = vif_policy,
+};
+
+static void
+put_container(struct blob_buf *buf, struct blob_attr *attr, const char *name)
+{
+ void *c = blobmsg_open_table(&b, name);
+ blob_put_raw(&b, blob_data(attr), blob_len(attr));
+ blobmsg_close_table(&b, c);
+}
+
+static void
+vif_config_add_bridge(struct blob_buf *buf, const char *network, bool prepare)
+{
+ struct interface *iface;
+ struct device *dev;
+
+ if (!network)
+ return;
+
+ iface = vlist_find(&interfaces, network, iface, node);
+ if (!iface)
+ return;
+
+ dev = iface->main_dev.dev;
+ if (!dev)
+ return;
+
+ if (dev->type != &bridge_device_type)
+ return;
+
+ blobmsg_add_string(buf, "bridge", dev->ifname);
+}
+
+static void
+prepare_config(struct wireless_device *wdev, struct blob_buf *buf, bool up)
+{
+ struct wireless_interface *vif;
+ void *l, *i;
+
+ blob_buf_init(&b, 0);
+ put_container(&b, wdev->config, "config");
+ if (wdev->data)
+ blobmsg_add_blob(&b, wdev->data);
+
+ l = blobmsg_open_table(&b, "interfaces");
+ vlist_for_each_element(&wdev->interfaces, vif, node) {
+ i = blobmsg_open_table(&b, vif->name);
+ vif_config_add_bridge(&b, vif->network, up);
+ put_container(&b, vif->config, "config");
+ if (vif->data)
+ blobmsg_add_blob(&b, vif->data);
+ blobmsg_close_table(&b, i);
+ }
+ blobmsg_close_table(&b, l);
+}
+
+static bool
+wireless_process_check(struct wireless_process *proc)
+{
+ return check_pid_path(proc->pid, proc->exe);
+}
+
+static void
+wireless_complete_kill_request(struct wireless_device *wdev)
+{
+ if (!wdev->kill_request)
+ return;
+
+ ubus_complete_deferred_request(ubus_ctx, wdev->kill_request, 0);
+ free(wdev->kill_request);
+ wdev->kill_request = NULL;
+}
+
+static void
+wireless_process_free(struct wireless_device *wdev, struct wireless_process *proc)
+{
+ list_del(&proc->list);
+ free(proc);
+
+ if (list_empty(&wdev->script_proc))
+ wireless_complete_kill_request(wdev);
+}
+
+static void
+wireless_close_script_proc_fd(struct wireless_device *wdev)
+{
+ if (wdev->script_proc_fd.fd < 0)
+ return;
+
+ uloop_fd_delete(&wdev->script_proc_fd);
+ close(wdev->script_proc_fd.fd);
+ wdev->script_proc_fd.fd = -1;
+}
+
+static void
+wireless_process_kill_all(struct wireless_device *wdev, int signal, bool free)
+{
+ struct wireless_process *proc, *tmp;
+
+ list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
+ bool check = wireless_process_check(proc);
+
+ if (check)
+ kill(proc->pid, signal);
+
+ if (free || !check)
+ wireless_process_free(wdev, proc);
+ }
+
+ if (free)
+ wireless_close_script_proc_fd(wdev);
+}
+
+static void
+wireless_device_free_state(struct wireless_device *wdev)
+{
+ struct wireless_interface *vif;
+
+ wireless_complete_kill_request(wdev);
+ free(wdev->data);
+ wdev->data = NULL;
+ vlist_for_each_element(&wdev->interfaces, vif, node) {
+ free(vif->data);
+ vif->data = NULL;
+ vif->ifname = NULL;
+ }
+}
+
+static void wireless_interface_handle_link(struct wireless_interface *vif, bool up)
+{
+ struct interface *iface;
+
+ if (!vif->network || !vif->ifname)
+ return;
+
+ iface = vlist_find(&interfaces, vif->network, iface, node);
+ if (!iface)
+ return;
+
+ interface_handle_link(iface, vif->ifname, up);
+}
+
+static void
+wireless_device_setup_cancel(struct wireless_device *wdev)
+{
+ if (wdev->cancel)
+ return;
+
+ wdev->cancel = true;
+ uloop_timeout_set(&wdev->timeout, 10 * 1000);
+}
+
+static void
+wireless_device_run_handler(struct wireless_device *wdev, bool up)
+{
+ const char *action = up ? "setup" : "teardown";
+ const char *argv[6];
+ char *config;
+ int i = 0;
+ int fds[2] = { -1, -1 };
+
+ prepare_config(wdev, &b, up);
+ config = blobmsg_format_json(b.head, true);
+
+ argv[i++] = wdev->drv->script;
+ argv[i++] = wdev->drv->name;
+ argv[i++] = action;
+ argv[i++] = wdev->name;
+ argv[i++] = config;
+ argv[i] = NULL;
+
+ if (up && pipe(fds) == 0) {
+ wdev->script_proc_fd.fd = fds[0];
+ uloop_fd_add(&wdev->script_proc_fd,
+ ULOOP_READ | ULOOP_EDGE_TRIGGER);
+ }
+
+ netifd_start_process(argv, NULL, &wdev->script_task);
+
+ if (fds[1] >= 0)
+ close(fds[1]);
+
+ free(config);
+}
+
+static void
+__wireless_device_set_up(struct wireless_device *wdev)
+{
+ if (wdev->state != IFS_DOWN || config_init)
+ return;
+
+ wdev->state = IFS_SETUP;
+ wireless_device_run_handler(wdev, true);
+}
+
+static void
+wireless_device_mark_down(struct wireless_device *wdev)
+{
+ struct wireless_interface *vif;
+
+ vlist_for_each_element(&wdev->interfaces, vif, node)
+ wireless_interface_handle_link(vif, false);
+
+ wireless_process_kill_all(wdev, SIGTERM, true);
+
+ wdev->state = IFS_DOWN;
+ wireless_device_free_state(wdev);
+
+ if (wdev->autostart)
+ __wireless_device_set_up(wdev);
+}
+
+static void
+wireless_device_mark_up(struct wireless_device *wdev)
+{
+ struct wireless_interface *vif;
+
+ wdev->state = IFS_UP;
+ vlist_for_each_element(&wdev->interfaces, vif, node)
+ wireless_interface_handle_link(vif, true);
+}
+
+static void
+wireless_device_setup_timeout(struct uloop_timeout *timeout)
+{
+ struct wireless_device *wdev = container_of(timeout, struct wireless_device, timeout);
+
+ netifd_kill_process(&wdev->script_task);
+ wdev->script_task.cb(&wdev->script_task, -1);
+ wireless_device_mark_down(wdev);
+}
+
+void
+wireless_device_set_up(struct wireless_device *wdev)
+{
+ wdev->retry = WIRELESS_SETUP_RETRY;
+ wdev->autostart = true;
+ __wireless_device_set_up(wdev);
+}
+
+static void
+__wireless_device_set_down(struct wireless_device *wdev)
+{
+ if (wdev->state == IFS_TEARDOWN || wdev->state == IFS_DOWN)
+ return;
+
+ if (wdev->script_task.uloop.pending) {
+ wireless_device_setup_cancel(wdev);
+ return;
+ }
+
+ wdev->state = IFS_TEARDOWN;
+ wireless_device_run_handler(wdev, false);
+}
+
+static void
+wireless_device_retry_setup(struct wireless_device *wdev)
+{
+ if (--wdev->retry < 0)
+ wdev->autostart = false;
+
+ __wireless_device_set_down(wdev);
+}
+
+static void
+wireless_device_script_task_cb(struct netifd_process *proc, int ret)
+{
+ struct wireless_device *wdev = container_of(proc, struct wireless_device, script_task);
+
+ switch (wdev->state) {
+ case IFS_SETUP:
+ wireless_device_retry_setup(wdev);
+ break;
+ case IFS_TEARDOWN:
+ wireless_device_mark_down(wdev);
+ break;
+ default:
+ break;
+ }
+}
+
+void
+wireless_device_set_down(struct wireless_device *wdev)
+{
+ wdev->autostart = false;
+ __wireless_device_set_down(wdev);
+}
+
+static void
+wireless_device_free(struct wireless_device *wdev)
+{
+ vlist_flush_all(&wdev->interfaces);
+ free(wdev->config);
+ free(wdev);
+}
+
+static void
+wdev_handle_config_change(struct wireless_device *wdev)
+{
+ switch(wdev->config_state) {
+ case IFC_NORMAL:
+ break;
+ case IFC_RELOAD:
+ if (wdev->autostart)
+ __wireless_device_set_up(wdev);
+ break;
+ case IFC_REMOVE:
+ wireless_device_free(wdev);
+ break;
+ }
+}
+
+static void
+wdev_set_config_state(struct wireless_device *wdev, enum interface_config_state s)
+{
+ enum interface_config_state old_state = wdev->config_state;
+
+ wdev->config_state = s;
+ if (old_state != IFC_NORMAL)
+ return;
+
+ if (wdev->state == IFS_DOWN)
+ wdev_handle_config_change(wdev);
+ else
+ __wireless_device_set_down(wdev);
+}
+
+static void
+wdev_change_config(struct wireless_device *wdev, struct wireless_device *wd_new)
+{
+ struct blob_attr *new_config = wd_new->config;
+
+ free(wd_new);
+
+ if (blob_attr_equal(wdev->config, new_config))
+ return;
+
+ D(WIRELESS, "Update configuration of wireless device '%s'\n", wdev->name);
+ free(wdev->config);
+ wdev->config = blob_memdup(new_config);
+ wdev_set_config_state(wdev, IFC_RELOAD);
+}
+
+static void
+wdev_create(struct wireless_device *wdev)
+{
+ wdev->retry = WIRELESS_SETUP_RETRY;
+ wdev->config = blob_memdup(wdev->config);
+}
+
+static void
+wdev_update(struct vlist_tree *tree, struct vlist_node *node_new,
+ struct vlist_node *node_old)
+{
+ struct wireless_device *wd_old = container_of(node_old, struct wireless_device, node);
+ struct wireless_device *wd_new = container_of(node_new, struct wireless_device, node);
+
+ if (wd_old && wd_new) {
+ wdev_change_config(wd_old, wd_new);
+ } else if (wd_old) {
+ D(WIRELESS, "Delete wireless device '%s'\n", wd_old->name);
+ wdev_set_config_state(wd_old, IFC_REMOVE);
+ } else if (wd_new) {
+ D(WIRELESS, "Create wireless device '%s'\n", wd_new->name);
+ wdev_create(wd_new);
+ }
+}
+
+static void
+wireless_add_handler(const char *script, const char *name, json_object *obj)
+{
+ struct wireless_driver *drv;
+ char *name_str, *script_str;
+ json_object *dev_config_obj, *iface_config_obj;
+ struct uci_blob_param_list *dev_config, *iface_config;
+
+ dev_config_obj = json_get_field(obj, "device", json_type_array);
+ iface_config_obj = json_get_field(obj, "iface", json_type_array);
+
+ if (!dev_config_obj || !iface_config_obj)
+ return;
+
+ drv = calloc_a(sizeof(*drv),
+ &name_str, strlen(name) + 1,
+ &script_str, strlen(script) + 1,
+ &dev_config, sizeof(*dev_config) + sizeof(void *),
+ &iface_config, sizeof(*iface_config) + sizeof(void *));
+
+ drv->name = strcpy(name_str, name);
+ drv->script = strcpy(script_str, script);
+
+ dev_config->n_next = 1;
+ dev_config->next[0] = &wdev_param;
+ drv->device.config = dev_config;
+
+ iface_config->n_next = 1;
+ iface_config->next[0] = &vif_param;
+ drv->interface.config = iface_config;
+
+ drv->device.buf = netifd_handler_parse_config(drv->device.config, dev_config_obj);
+ drv->interface.buf = netifd_handler_parse_config(drv->interface.config, iface_config_obj);
+
+ drv->node.key = drv->name;
+ avl_insert(&wireless_drivers, &drv->node);
+ D(WIRELESS, "Add handler for script %s: %s\n", script, name);
+}
+
+static void __init
+wireless_init_list(void)
+{
+ vlist_init(&wireless_devices, avl_strcmp, wdev_update);
+ wireless_devices.keep_old = true;
+ wireless_devices.no_delete = true;
+
+ avl_init(&wireless_drivers, avl_strcmp, false, NULL);
+ drv_fd = netifd_open_subdir("wireless");
+ if (drv_fd < 0)
+ return;
+
+ netifd_init_script_handlers(drv_fd, wireless_add_handler);
+}
+
+static void
+wireless_interface_init_config(struct wireless_interface *vif)
+{
+ struct blob_attr *tb[__VIF_ATTR_MAX];
+ struct blob_attr *cur;
+
+ vif->network = NULL;
+ blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(vif->config), blob_len(vif->config));
+
+ if ((cur = tb[VIF_ATTR_NETWORK]))
+ vif->network = blobmsg_data(cur);
+}
+
+static void
+vif_update(struct vlist_tree *tree, struct vlist_node *node_new,
+ struct vlist_node *node_old)
+{
+ struct wireless_interface *vif_old = container_of(node_old, struct wireless_interface, node);
+ struct wireless_interface *vif_new = container_of(node_new, struct wireless_interface, node);
+ struct wireless_device *wdev;
+
+ if (vif_old)
+ wdev = vif_old->wdev;
+ else
+ wdev = vif_new->wdev;
+
+ if (vif_old && vif_new) {
+ if (blob_attr_equal(vif_old->config, vif_new->config)) {
+ free(vif_new);
+ return;
+ }
+
+ D(WIRELESS, "Update wireless interface %s on device %s\n", vif_new->name, wdev->name);
+ free(vif_old->config);
+ vif_old->config = blob_memdup(vif_new->config);
+ wireless_interface_init_config(vif_old);
+ free(vif_new);
+ } else if (vif_new) {
+ D(WIRELESS, "Create new wireless interface %s on device %s\n", vif_new->name, wdev->name);
+ vif_new->config = blob_memdup(vif_new->config);
+ wireless_interface_init_config(vif_new);
+ } else if (vif_old) {
+ D(WIRELESS, "Delete wireless interface %s on device %s\n", vif_old->name, wdev->name);
+ free(vif_old->config);
+ free(vif_old);
+ }
+
+ wdev_set_config_state(wdev, IFC_RELOAD);
+}
+
+static void
+wireless_proc_poll_fd(struct uloop_fd *fd, unsigned int events)
+{
+ struct wireless_device *wdev = container_of(fd, struct wireless_device, script_proc_fd);
+ char buf[128];
+
+ while (1) {
+ int b = read(fd->fd, buf, sizeof(buf));
+ if (b < 0) {
+ if (errno == EINTR)
+ continue;
+
+ if (errno == EAGAIN)
+ return;
+
+ goto done;
+ }
+
+ if (!b)
+ goto done;
+ }
+
+done:
+ uloop_timeout_set(&wdev->script_check, 0);
+ wireless_close_script_proc_fd(wdev);
+}
+
+static void
+wireless_device_check_script_tasks(struct uloop_timeout *timeout)
+{
+ struct wireless_device *wdev = container_of(timeout, struct wireless_device, script_check);
+ struct wireless_process *proc, *tmp;
+ bool restart = false;
+
+ list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
+ if (wireless_process_check(proc))
+ continue;
+
+ if (proc->required)
+ restart = true;
+
+ wireless_process_free(wdev, proc);
+ }
+
+ if (restart)
+ wireless_device_retry_setup(wdev);
+ else
+ uloop_timeout_set(&wdev->script_check, 1000);
+}
+
+void
+wireless_device_create(struct wireless_driver *drv, const char *name, struct blob_attr *data)
+{
+ struct wireless_device *wdev;
+ char *name_buf;
+ struct blob_attr *disabled;
+
+ blobmsg_parse(&wdev_policy, 1, &disabled, blob_data(data), blob_len(data));
+ if (disabled && blobmsg_get_bool(disabled))
+ return;
+
+ wdev = calloc_a(sizeof(*wdev), &name_buf, strlen(name) + 1);
+ wdev->drv = drv;
+ wdev->state = IFS_DOWN;
+ wdev->config_state = IFC_NORMAL;
+ wdev->name = strcpy(name_buf, name);
+ wdev->config = data;
+ wdev->config_autostart = true;
+ wdev->autostart = wdev->config_autostart;
+ INIT_LIST_HEAD(&wdev->script_proc);
+ vlist_init(&wdev->interfaces, avl_strcmp, vif_update);
+ wdev->interfaces.keep_old = true;
+ wdev->interfaces.no_delete = true;
+ vlist_add(&wireless_devices, &wdev->node, wdev->name);
+
+ wdev->timeout.cb = wireless_device_setup_timeout;
+ wdev->script_task.cb = wireless_device_script_task_cb;
+ wdev->script_task.dir_fd = drv_fd;
+ wdev->script_task.log_prefix = wdev->name;
+
+ wdev->script_proc_fd.fd = -1;
+ wdev->script_proc_fd.cb = wireless_proc_poll_fd;
+
+ wdev->script_check.cb = wireless_device_check_script_tasks;
+}
+
+void wireless_interface_create(struct wireless_device *wdev, struct blob_attr *data)
+{
+ struct wireless_interface *vif;
+ struct blob_attr *tb[__VIF_ATTR_MAX];
+ struct blob_attr *cur;
+ char *name_buf;
+ char name[8];
+
+ blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(data), blob_len(data));
+
+ cur = tb[VIF_ATTR_DISABLED];
+ if (cur && blobmsg_get_bool(cur))
+ return;
+
+ sprintf(name, "%d", wdev->vif_idx++);
+
+ vif = calloc_a(sizeof(*vif), &name_buf, strlen(name) + 1);
+ vif->name = strcpy(name_buf, name);
+ vif->wdev = wdev;
+ vif->config = data;
+ vlist_add(&wdev->interfaces, &vif->node, vif->name);
+}
+
+static void
+wireless_interface_status(struct wireless_interface *iface, struct blob_buf *b)
+{
+ void *i;
+
+ i = blobmsg_open_table(b, iface->name);
+ if (iface->data)
+ blob_put_raw(b, blob_data(iface->data), blob_len(iface->data));
+ blobmsg_close_table(b, i);
+}
+
+void
+wireless_device_status(struct wireless_device *wdev, struct blob_buf *b)
+{
+ struct wireless_interface *iface;
+ void *c, *i;
+
+ c = blobmsg_open_table(b, wdev->name);
+ blobmsg_add_u8(b, "up", wdev->state == IFS_UP);
+ blobmsg_add_u8(b, "pending", wdev->state == IFS_SETUP || wdev->state == IFS_TEARDOWN);
+ blobmsg_add_u8(b, "autostart", wdev->autostart);
+ i = blobmsg_open_table(b, "interfaces");
+ vlist_for_each_element(&wdev->interfaces, iface, node)
+ wireless_interface_status(iface, b);
+ blobmsg_close_table(b, i);
+ blobmsg_close_table(b, c);
+}
+
+static void
+wireless_interface_set_data(struct wireless_interface *vif)
+{
+ enum {
+ VIF_DATA_IFNAME,
+ __VIF_DATA_MAX,
+ };
+ static const struct blobmsg_policy data_policy[__VIF_DATA_MAX] = {
+ [VIF_DATA_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
+ };
+ struct blob_attr *tb[__VIF_DATA_MAX];
+ struct blob_attr *cur;
+
+ blobmsg_parse(data_policy, __VIF_DATA_MAX, tb,
+ blobmsg_data(vif->data), blobmsg_data_len(vif->data));
+
+ if ((cur = tb[VIF_DATA_IFNAME]))
+ vif->ifname = blobmsg_data(cur);
+}
+
+static int
+wireless_device_add_process(struct wireless_device *wdev, struct blob_attr *data)
+{
+ enum {
+ PROC_ATTR_PID,
+ PROC_ATTR_EXE,
+ PROC_ATTR_REQUIRED,
+ __PROC_ATTR_MAX
+ };
+ static const struct blobmsg_policy proc_policy[__PROC_ATTR_MAX] = {
+ [PROC_ATTR_PID] = { .name = "pid", .type = BLOBMSG_TYPE_INT32 },
+ [PROC_ATTR_EXE] = { .name = "exe", .type = BLOBMSG_TYPE_STRING },
+ [PROC_ATTR_REQUIRED] = { .name = "required", .type = BLOBMSG_TYPE_BOOL },
+ };
+ struct blob_attr *tb[__PROC_ATTR_MAX];
+ struct wireless_process *proc;
+ char *name;
+
+ if (!data)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ blobmsg_parse(proc_policy, __PROC_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
+ if (!tb[PROC_ATTR_PID] || !tb[PROC_ATTR_EXE])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ proc = calloc_a(sizeof(*proc),
+ &name, strlen(blobmsg_data(tb[PROC_ATTR_EXE])) + 1);
+
+ proc->pid = blobmsg_get_u32(tb[PROC_ATTR_PID]);
+ proc->exe = strcpy(name, blobmsg_data(tb[PROC_ATTR_EXE]));
+
+ if (tb[PROC_ATTR_REQUIRED])
+ proc->required = blobmsg_get_bool(tb[PROC_ATTR_REQUIRED]);
+
+ list_add(&proc->list, &wdev->script_proc);
+ uloop_timeout_set(&wdev->script_check, 0);
+
+ return 0;
+}
+
+static int
+wireless_device_process_kill_all(struct wireless_device *wdev, struct blob_attr *data,
+ struct ubus_request_data *req)
+{
+ enum {
+ KILL_ATTR_SIGNAL,
+ KILL_ATTR_IMMEDIATE,
+ __KILL_ATTR_MAX
+ };
+ static const struct blobmsg_policy kill_policy[__KILL_ATTR_MAX] = {
+ [KILL_ATTR_SIGNAL] = { .name = "signal", .type = BLOBMSG_TYPE_INT32 },
+ [KILL_ATTR_IMMEDIATE] = { .name = "immediate", .type = BLOBMSG_TYPE_BOOL },
+ };
+ struct blob_attr *tb[__KILL_ATTR_MAX];
+ struct blob_attr *cur;
+ bool immediate = false;
+ int signal = SIGTERM;
+
+ blobmsg_parse(kill_policy, __KILL_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
+
+ if ((cur = tb[KILL_ATTR_SIGNAL]))
+ signal = blobmsg_get_u32(cur);
+
+ if ((cur = tb[KILL_ATTR_IMMEDIATE]))
+ immediate = blobmsg_get_u32(cur);
+
+ if (wdev->state != IFS_TEARDOWN || wdev->kill_request)
+ return UBUS_STATUS_PERMISSION_DENIED;
+
+ wireless_process_kill_all(wdev, signal, immediate);
+
+ if (list_empty(&wdev->script_proc))
+ return 0;
+
+ wdev->kill_request = calloc(1, sizeof(*wdev->kill_request));
+ ubus_defer_request(ubus_ctx, req, wdev->kill_request);
+
+ return 0;
+}
+
+static int
+wireless_device_set_retry(struct wireless_device *wdev, struct blob_attr *data)
+{
+ static const struct blobmsg_policy retry_policy = {
+ .name = "retry", .type = BLOBMSG_TYPE_INT32
+ };
+ struct blob_attr *val;
+
+ blobmsg_parse(&retry_policy, 1, &val, blobmsg_data(data), blobmsg_data_len(data));
+ if (!val)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ wdev->retry = blobmsg_get_u32(val);
+ return 0;
+}
+
+enum {
+ NOTIFY_CMD_UP = 0,
+ NOTIFY_CMD_SET_DATA = 1,
+ NOTIFY_CMD_PROCESS_ADD = 2,
+ NOTIFY_CMD_PROCESS_KILL_ALL = 3,
+ NOTIFY_CMD_SET_RETRY = 4,
+};
+
+int
+wireless_device_notify(struct wireless_device *wdev, struct blob_attr *data,
+ struct ubus_request_data *req)
+{
+ enum {
+ NOTIFY_ATTR_COMMAND,
+ NOTIFY_ATTR_VIF,
+ NOTIFY_ATTR_DATA,
+ __NOTIFY_MAX,
+ };
+ static const struct blobmsg_policy notify_policy[__NOTIFY_MAX] = {
+ [NOTIFY_ATTR_COMMAND] = { .name = "command", .type = BLOBMSG_TYPE_INT32 },
+ [NOTIFY_ATTR_VIF] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
+ [NOTIFY_ATTR_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
+ };
+ struct wireless_interface *vif = NULL;
+ struct blob_attr *tb[__NOTIFY_MAX];
+ struct blob_attr *cur, **pdata;
+
+ blobmsg_parse(notify_policy, __NOTIFY_MAX, tb, blob_data(data), blob_len(data));
+
+ if (!tb[NOTIFY_ATTR_COMMAND])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ if ((cur = tb[NOTIFY_ATTR_VIF]) != NULL) {
+ vif = vlist_find(&wdev->interfaces, blobmsg_data(cur), vif, node);
+ if (!vif)
+ return UBUS_STATUS_NOT_FOUND;
+ }
+
+ cur = tb[NOTIFY_ATTR_DATA];
+ if (!cur)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ switch (blobmsg_get_u32(tb[NOTIFY_ATTR_COMMAND])) {
+ case NOTIFY_CMD_UP:
+ if (vif)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ if (wdev->state != IFS_SETUP)
+ return UBUS_STATUS_PERMISSION_DENIED;
+
+ if (wdev->cancel)
+ return 0;
+
+ wireless_device_mark_up(wdev);
+ break;
+ case NOTIFY_CMD_SET_DATA:
+ if (vif)
+ pdata = &vif->data;
+ else
+ pdata = &wdev->data;
+
+ if (*pdata)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ *pdata = blob_memdup(cur);
+ if (vif)
+ wireless_interface_set_data(vif);
+ break;
+ case NOTIFY_CMD_PROCESS_ADD:
+ return wireless_device_add_process(wdev, cur);
+ case NOTIFY_CMD_PROCESS_KILL_ALL:
+ return wireless_device_process_kill_all(wdev, cur, req);
+ case NOTIFY_CMD_SET_RETRY:
+ return wireless_device_set_retry(wdev, cur);
+ default:
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ }
+
+ return 0;
+}
+
+void
+wireless_start_pending(void)
+{
+ struct wireless_device *wdev;
+
+ vlist_for_each_element(&wireless_devices, wdev, node)
+ if (wdev->autostart)
+ __wireless_device_set_up(wdev);
+}
projects / oweals / netifd.git / commitdiff