diff options
Diffstat (limited to 'wireless.c')
| -rw-r--r-- | wireless.c | 863 |
1 files changed, 863 insertions, 0 deletions
diff --git a/wireless.c b/wireless.c new file mode 100644 index 0000000..52d0eae --- /dev/null +++ b/wireless.c @@ -0,0 +1,863 @@ +/* + * 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); +} |