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#include <string.h>
#include "netifd.h"
#include "ubus.h"
static struct ubus_context *ctx = NULL;
static struct blob_buf b;
/* global object */
enum {
DEV_NAME,
DEV_FORCE,
DEV_LAST,
};
static const struct blobmsg_policy dev_policy[] = {
[DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
[DEV_FORCE] = { .name = "force", .type = BLOBMSG_TYPE_INT8 },
};
static int netifd_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
struct device *dev;
struct blob_attr *tb[DEV_LAST];
bool add = !strncmp(method, "add", 3);
blobmsg_parse(dev_policy, ARRAY_SIZE(dev_policy), tb, blob_data(msg), blob_len(msg));
if (!tb[DEV_NAME])
return UBUS_STATUS_INVALID_ARGUMENT;
dev = get_device(blobmsg_data(tb[DEV_NAME]), false);
if (!dev)
return UBUS_STATUS_NOT_FOUND;
if (!add || (tb[DEV_FORCE] && blobmsg_get_u8(tb[DEV_FORCE])))
set_device_present(dev, add);
else
check_device_state(dev);
return 0;
}
static struct ubus_method main_object_methods[] = {
UBUS_METHOD("add_device", netifd_handle_device, dev_policy),
UBUS_METHOD("del_device", netifd_handle_device, dev_policy),
};
static struct ubus_object_type main_object_type =
UBUS_OBJECT_TYPE("netifd", main_object_methods);
static struct ubus_object main_object = {
.name = "network.interface",
.type = &main_object_type,
.methods = main_object_methods,
.n_methods = ARRAY_SIZE(main_object_methods),
};
int netifd_ubus_init(const char *path)
{
int ret;
ctx = ubus_connect(path);
if (!ctx)
return -EIO;
DPRINTF("connected as %08x\n", ctx->local_id);
uloop_init();
ubus_add_uloop(ctx);
ret = ubus_add_object(ctx, &main_object);
if (ret != 0)
fprintf(stderr, "Failed to publish object: %s\n", ubus_strerror(ret));
return 0;
}
void netifd_ubus_done(void)
{
ubus_free(ctx);
}
/* per-interface object */
static int netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
struct interface *iface;
iface = container_of(obj, struct interface, ubus);
set_interface_up(iface);
return 0;
}
static int netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
struct interface *iface;
iface = container_of(obj, struct interface, ubus);
set_interface_down(iface);
return 0;
}
static void netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
{
struct interface_error *error;
void *e, *e2, *e3;
int i;
e = blobmsg_open_array(b, "errors");
list_for_each_entry(error, &iface->errors, list) {
e2 = blobmsg_open_table(b, NULL);
blobmsg_add_string(b, "subsystem", error->subsystem);
blobmsg_add_string(b, "code", error->code);
if (error->data[0]) {
e3 = blobmsg_open_array(b, "data");
for (i = 0; error->data[i]; i++)
blobmsg_add_string(b, NULL, error->data[i]);
blobmsg_close_array(b, e3);
}
blobmsg_close_table(b, e2);
}
blobmsg_close_array(b, e);
}
static int netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
static const char *iface_state[] = {
[IFS_SETUP] = "setup",
[IFS_UP] = "up",
[IFS_TEARDOWN] = "teardown",
[IFS_DOWN] = "down",
};
struct interface *iface;
iface = container_of(obj, struct interface, ubus);
blob_buf_init(&b, 0);
blobmsg_add_string(&b, "state", iface_state[iface->state]);
blobmsg_add_u8(&b, "active", iface->active);
blobmsg_add_u8(&b, "autostart", iface->autostart);
if (iface->main_dev.dev) {
struct device *dev = iface->main_dev.dev;
const char *field;
void *devinfo;
/* use a different field for virtual devices */
if (dev->avl.key)
field = "device";
else
field = "link";
devinfo = blobmsg_open_table(&b, field);
blobmsg_add_string(&b, "name", dev->ifname);
if (dev->type->dump_status)
dev->type->dump_status(dev, &b);
blobmsg_close_table(&b, devinfo);
}
if (!list_is_empty(&iface->errors))
netifd_add_interface_errors(&b, iface);
ubus_send_reply(ctx, req, b.head);
return 0;
}
static struct ubus_method iface_object_methods[] = {
{ .name = "up", .handler = netifd_handle_up },
{ .name = "down", .handler = netifd_handle_down },
{ .name = "status", .handler = netifd_handle_status },
};
static struct ubus_object_type iface_object_type =
UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
void netifd_ubus_add_interface(struct interface *iface)
{
struct ubus_object *obj = &iface->ubus;
char *name;
name = malloc(strlen(main_object.name) + strlen(iface->name) + 2);
if (!name)
return;
sprintf(name, "%s.%s", main_object.name, iface->name);
obj->name = name;
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)) {
DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
free(name);
obj->name = NULL;
}
}
void netifd_ubus_remove_interface(struct interface *iface)
{
if (!iface->ubus.name)
return;
ubus_remove_object(ctx, &iface->ubus);
free((void *) iface->ubus.name);
}
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