2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License.
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
15 * Copyright (C) 2020 embedd.ch
16 * Copyright (C) 2020 Felix Fietkau <nbd@nbd.name>
17 * Copyright (C) 2020 John Crispin <john@phrozen.org>
23 #include <libubox/avl.h>
24 #include <libubox/blobmsg.h>
25 #include <libubox/uloop.h>
26 #include <libubox/utils.h>
27 #include <libubox/kvlist.h>
32 #define NO_SIGNAL 0xff
35 #define _STR(x) __STR(x)
37 #define APMGR_V6_MCAST_GROUP "ff02::4150"
39 #define APMGR_PORT 16720 /* AP */
40 #define APMGR_PORT_STR _STR(APMGR_PORT)
41 #define APMGR_BUFLEN (64 * 1024)
43 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
45 enum usteer_event_type
{
52 enum usteer_node_type
{
58 struct usteer_local_node
;
59 struct usteer_remote_host
;
63 struct list_head sta_info
;
65 enum usteer_node_type type
;
67 struct blob_attr
*rrm_nr
;
68 struct blob_attr
*node_info
;
79 struct usteer_scan_request
{
86 struct usteer_scan_result
{
94 struct usteer_survey_data
{
102 struct usteer_freq_data
{
109 struct usteer_node_handler
{
110 struct list_head list
;
112 void (*init_node
)(struct usteer_node
*);
113 void (*free_node
)(struct usteer_node
*);
114 void (*update_node
)(struct usteer_node
*);
115 void (*update_sta
)(struct usteer_node
*, struct sta_info
*);
116 void (*get_survey
)(struct usteer_node
*, void *,
117 void (*cb
)(void *priv
, struct usteer_survey_data
*d
));
118 void (*get_freqlist
)(struct usteer_node
*, void *,
119 void (*cb
)(void *priv
, struct usteer_freq_data
*f
));
120 int (*scan
)(struct usteer_node
*, struct usteer_scan_request
*,
121 void *, void (*cb
)(void *priv
, struct usteer_scan_result
*r
));
124 struct usteer_config
{
126 uint32_t debug_level
;
130 uint32_t sta_block_timeout
;
131 uint32_t local_sta_timeout
;
132 uint32_t local_sta_update
;
134 uint32_t max_retry_band
;
135 uint32_t seen_policy_timeout
;
139 uint32_t band_steering_threshold
;
140 uint32_t load_balancing_threshold
;
142 uint32_t remote_update_interval
;
143 uint32_t remote_node_timeout
;
146 int32_t min_connect_snr
;
147 uint32_t signal_diff_threshold
;
149 int32_t roam_scan_snr
;
150 uint32_t roam_scan_tries
;
151 uint32_t roam_scan_interval
;
153 int32_t roam_trigger_snr
;
154 uint32_t roam_trigger_interval
;
156 uint32_t roam_kick_delay
;
158 uint32_t initial_connect_delay
;
160 bool load_kick_enabled
;
161 uint32_t load_kick_threshold
;
162 uint32_t load_kick_delay
;
163 uint32_t load_kick_min_clients
;
164 uint32_t load_kick_reason_code
;
166 const char *node_up_script
;
167 uint32_t event_log_mask
;
169 struct blob_attr
*ssid_list
;
172 struct sta_info_stats
{
174 uint32_t blocked_cur
;
175 uint32_t blocked_total
;
176 uint32_t blocked_last_time
;
179 enum roam_trigger_state
{
182 ROAM_TRIGGER_SCAN_DONE
,
183 ROAM_TRIGGER_WAIT_KICK
,
184 ROAM_TRIGGER_NOTIFY_KICK
,
189 struct list_head list
;
190 struct list_head node_list
;
192 struct usteer_node
*node
;
195 struct usteer_timeout timeout
;
197 struct sta_info_stats stats
[__EVENT_TYPE_MAX
];
202 enum roam_trigger_state roam_state
;
206 uint64_t roam_scan_done
;
210 uint8_t scan_band
: 1;
211 uint8_t connected
: 2;
216 struct list_head nodes
;
218 uint8_t seen_2ghz
: 1;
219 uint8_t seen_5ghz
: 1;
224 extern struct ubus_context
*ubus_ctx
;
225 extern struct usteer_config config
;
226 extern struct list_head node_handlers
;
227 extern struct avl_tree stations
;
228 extern struct ubus_object usteer_obj
;
229 extern uint64_t current_time
;
230 extern const char * const event_types
[__EVENT_TYPE_MAX
];
231 extern struct blob_attr
*host_info_blob
;
233 void usteer_update_time(void);
234 void usteer_init_defaults(void);
235 bool usteer_handle_sta_event(struct usteer_node
*node
, const uint8_t *addr
,
236 enum usteer_event_type type
, int freq
, int signal
);
238 void usteer_local_nodes_init(struct ubus_context
*ctx
);
239 void usteer_local_node_kick(struct usteer_local_node
*ln
);
241 void usteer_ubus_init(struct ubus_context
*ctx
);
242 void usteer_ubus_kick_client(struct sta_info
*si
);
243 int usteer_ubus_trigger_client_scan(struct sta_info
*si
);
244 int usteer_ubus_notify_client_disassoc(struct sta_info
*si
);
246 struct sta
*usteer_sta_get(const uint8_t *addr
, bool create
);
247 struct sta_info
*usteer_sta_info_get(struct sta
*sta
, struct usteer_node
*node
, bool *create
);
249 void usteer_sta_info_update_timeout(struct sta_info
*si
, int timeout
);
250 void usteer_sta_info_update(struct sta_info
*si
, int signal
, bool avg
);
252 static inline const char *usteer_node_name(struct usteer_node
*node
)
254 return node
->avl
.key
;
256 void usteer_node_set_blob(struct blob_attr
**dest
, struct blob_attr
*val
);
258 bool usteer_check_request(struct sta_info
*si
, enum usteer_event_type type
);
260 void config_set_interfaces(struct blob_attr
*data
);
261 void config_get_interfaces(struct blob_buf
*buf
);
263 void config_set_node_up_script(struct blob_attr
*data
);
264 void config_get_node_up_script(struct blob_buf
*buf
);
266 void config_set_ssid_list(struct blob_attr
*data
);
267 void config_get_ssid_list(struct blob_buf
*buf
);
269 int usteer_interface_init(void);
270 void usteer_interface_add(const char *name
);
271 void usteer_sta_node_cleanup(struct usteer_node
*node
);
272 void usteer_send_sta_update(struct sta_info
*si
);
274 int usteer_lua_init(void);
275 int usteer_lua_ubus_init(void);
276 void usteer_run_hook(const char *name
, const char *arg
);
278 void usteer_dump_node(struct blob_buf
*buf
, struct usteer_node
*node
);
279 void usteer_dump_host(struct blob_buf
*buf
, struct usteer_remote_host
*host
);