2 * Copyright (C) 2012 Jo-Philipp Wich <jow@openwrt.org>
3 * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
4 * Copyright (C) 2016 Iain Fraser <iainf@netduma.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License version 2.1
8 * as published by the Free Software Foundation
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
18 #include <libubox/blobmsg.h>
19 #include <libubox/blobmsg_json.h>
23 #define MODNAME "ubus"
24 #define METANAME MODNAME ".meta"
26 static lua_State
*state
;
28 struct ubus_lua_connection
{
31 struct ubus_context
*ctx
;
34 struct ubus_lua_object
{
40 struct ubus_lua_event
{
41 struct ubus_event_handler e
;
45 struct ubus_lua_subscriber
{
46 struct ubus_subscriber s
;
52 ubus_lua_parse_blob(lua_State
*L
, struct blob_attr
*attr
, bool table
);
55 ubus_lua_parse_blob_array(lua_State
*L
, struct blob_attr
*attr
, int len
, bool table
)
60 struct blob_attr
*pos
;
64 __blob_for_each_attr(pos
, attr
, rem
)
66 rv
= ubus_lua_parse_blob(L
, pos
, table
);
71 lua_rawseti(L
, -2, idx
++);
78 ubus_lua_parse_blob(lua_State
*L
, struct blob_attr
*attr
, bool table
)
84 if (!blobmsg_check_attr(attr
, false))
87 if (table
&& blobmsg_name(attr
)[0])
89 lua_pushstring(L
, blobmsg_name(attr
));
93 data
= blobmsg_data(attr
);
94 len
= blobmsg_data_len(attr
);
96 switch (blob_id(attr
))
98 case BLOBMSG_TYPE_BOOL
:
99 lua_pushboolean(L
, *(uint8_t *)data
);
102 case BLOBMSG_TYPE_INT16
:
103 lua_pushinteger(L
, be16_to_cpu(*(uint16_t *)data
));
106 case BLOBMSG_TYPE_INT32
:
107 lua_pushinteger(L
, be32_to_cpu(*(uint32_t *)data
));
110 case BLOBMSG_TYPE_INT64
:
111 lua_pushnumber(L
, (double) be64_to_cpu(*(uint64_t *)data
));
114 case BLOBMSG_TYPE_STRING
:
115 lua_pushstring(L
, data
);
118 case BLOBMSG_TYPE_ARRAY
:
119 ubus_lua_parse_blob_array(L
, data
, len
, false);
122 case BLOBMSG_TYPE_TABLE
:
123 ubus_lua_parse_blob_array(L
, data
, len
, true);
136 ubus_lua_format_blob_is_array(lua_State
*L
)
141 /* Find out whether table is array-like */
142 for (lua_pushnil(L
); lua_next(L
, -2); lua_pop(L
, 1))
145 if (lua_type(L
, -2) != LUA_TNUMBER
&& lua_type(L
, -2) != LUA_TINT
)
147 if (lua_type(L
, -2) != LUA_TNUMBER
)
154 cur
= lua_tointeger(L
, -2);
156 if ((cur
- 1) != prv
)
169 ubus_lua_format_blob_array(lua_State
*L
, struct blob_buf
*b
, bool table
);
172 ubus_lua_format_blob(lua_State
*L
, struct blob_buf
*b
, bool table
)
176 const char *key
= table
? lua_tostring(L
, -2) : NULL
;
178 switch (lua_type(L
, -1))
181 blobmsg_add_u8(b
, key
, (uint8_t)lua_toboolean(L
, -1));
188 blobmsg_add_u32(b
, key
, (uint32_t)lua_tointeger(L
, -1));
193 case LUA_TLIGHTUSERDATA
:
194 blobmsg_add_string(b
, key
, lua_tostring(L
, -1));
198 if (ubus_lua_format_blob_is_array(L
))
200 c
= blobmsg_open_array(b
, key
);
201 rv
= ubus_lua_format_blob_array(L
, b
, false);
202 blobmsg_close_array(b
, c
);
206 c
= blobmsg_open_table(b
, key
);
207 rv
= ubus_lua_format_blob_array(L
, b
, true);
208 blobmsg_close_table(b
, c
);
221 ubus_lua_format_blob_array(lua_State
*L
, struct blob_buf
*b
, bool table
)
223 for (lua_pushnil(L
); lua_next(L
, -2); lua_pop(L
, 1))
225 if (!ubus_lua_format_blob(L
, b
, table
))
237 ubus_lua_connect(lua_State
*L
)
239 struct ubus_lua_connection
*c
;
240 const char *sockpath
= luaL_optstring(L
, 1, NULL
);
241 int timeout
= luaL_optint(L
, 2, 30);
243 if ((c
= lua_newuserdata(L
, sizeof(*c
))) != NULL
&&
244 (c
->ctx
= ubus_connect(sockpath
)) != NULL
)
246 ubus_add_uloop(c
->ctx
);
247 c
->timeout
= timeout
;
248 memset(&c
->buf
, 0, sizeof(c
->buf
));
249 luaL_getmetatable(L
, METANAME
);
250 lua_setmetatable(L
, -2);
254 /* NB: no errors from ubus_connect() yet */
256 lua_pushinteger(L
, UBUS_STATUS_UNKNOWN_ERROR
);
262 ubus_lua_objects_cb(struct ubus_context
*c
, struct ubus_object_data
*o
, void *p
)
264 lua_State
*L
= (lua_State
*)p
;
266 lua_pushstring(L
, o
->path
);
267 lua_rawseti(L
, -2, lua_objlen(L
, -2) + 1);
271 ubus_lua_objects(lua_State
*L
)
274 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
277 rv
= ubus_lookup(c
->ctx
, NULL
, ubus_lua_objects_cb
, L
);
279 if (rv
!= UBUS_STATUS_OK
)
283 lua_pushinteger(L
, rv
);
291 ubus_method_handler(struct ubus_context
*ctx
, struct ubus_object
*obj
,
292 struct ubus_request_data
*req
, const char *method
,
293 struct blob_attr
*msg
)
295 struct ubus_lua_object
*o
= container_of(obj
, struct ubus_lua_object
, o
);
298 lua_getglobal(state
, "__ubus_cb");
299 lua_rawgeti(state
, -1, o
->r
);
300 lua_getfield(state
, -1, method
);
301 lua_remove(state
, -2);
302 lua_remove(state
, -2);
304 if (lua_isfunction(state
, -1)) {
305 lua_pushlightuserdata(state
, req
);
309 ubus_lua_parse_blob_array(state
, blob_data(msg
), blob_len(msg
), true);
310 lua_call(state
, 2, 1);
311 if (lua_isnumber(state
, -1))
312 rv
= lua_tonumber(state
, -1);
320 static int lua_gettablelen(lua_State
*L
, int index
)
326 while (lua_next(L
, index
) != 0) {
334 static int ubus_lua_reply(lua_State
*L
)
336 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
337 struct ubus_request_data
*req
;
339 luaL_checktype(L
, 3, LUA_TTABLE
);
340 blob_buf_init(&c
->buf
, 0);
342 if (!ubus_lua_format_blob_array(L
, &c
->buf
, true))
345 lua_pushinteger(L
, UBUS_STATUS_INVALID_ARGUMENT
);
349 req
= lua_touserdata(L
, 2);
350 ubus_send_reply(c
->ctx
, req
, c
->buf
.head
);
355 static int ubus_lua_load_methods(lua_State
*L
, struct ubus_method
*m
)
357 struct blobmsg_policy
*p
;
361 /* get the function pointer */
362 lua_pushinteger(L
, 1);
365 /* get the policy table */
366 lua_pushinteger(L
, 2);
369 /* check if the method table is valid */
370 if ((lua_type(L
, -2) != LUA_TFUNCTION
) ||
371 (lua_type(L
, -1) != LUA_TTABLE
) ||
377 /* store function pointer */
378 lua_pushvalue(L
, -2);
379 lua_setfield(L
, -6, lua_tostring(L
, -5));
381 m
->name
= lua_tostring(L
, -4);
382 m
->handler
= ubus_method_handler
;
384 plen
= lua_gettablelen(L
, -1);
386 /* exit if policy table is empty */
392 /* setup the policy pointers */
393 p
= malloc(sizeof(struct blobmsg_policy
) * plen
);
397 memset(p
, 0, sizeof(struct blobmsg_policy
) * plen
);
400 while (lua_next(L
, -2) != 0) {
401 int val
= lua_tointeger(L
, -1);
403 /* check if the policy is valid */
404 if ((lua_type(L
, -2) != LUA_TSTRING
) ||
405 (lua_type(L
, -1) != LUA_TNUMBER
) ||
407 (val
> BLOBMSG_TYPE_LAST
)) {
411 p
[pidx
].name
= lua_tostring(L
, -2);
424 ubus_new_sub_cb(struct ubus_context
*ctx
, struct ubus_object
*obj
)
426 struct ubus_lua_object
*luobj
;
428 luobj
= container_of(obj
, struct ubus_lua_object
, o
);
430 lua_getglobal(state
, "__ubus_cb_publisher");
431 lua_rawgeti(state
, -1, luobj
->rsubscriber
);
432 lua_remove(state
, -2);
434 if (lua_isfunction(state
, -1)) {
435 lua_pushnumber(state
, luobj
->o
.has_subscribers
);
436 lua_call(state
, 1, 0);
443 ubus_lua_load_newsub_cb( lua_State
*L
, struct ubus_lua_object
*obj
)
445 /* keep ref to func */
446 lua_getglobal(L
, "__ubus_cb_publisher");
447 lua_pushvalue(L
, -2);
448 obj
->rsubscriber
= luaL_ref(L
, -2);
452 obj
->o
.subscribe_cb
= ubus_new_sub_cb
;
456 static struct ubus_object
* ubus_lua_load_object(lua_State
*L
)
458 struct ubus_lua_object
*obj
= NULL
;
459 int mlen
= lua_gettablelen(L
, -1);
460 struct ubus_method
*m
;
463 /* setup object pointers */
464 obj
= malloc(sizeof(struct ubus_lua_object
));
468 memset(obj
, 0, sizeof(struct ubus_lua_object
));
469 obj
->o
.name
= lua_tostring(L
, -2);
471 /* setup method pointers */
472 m
= malloc(sizeof(struct ubus_method
) * mlen
);
473 memset(m
, 0, sizeof(struct ubus_method
) * mlen
);
476 /* setup type pointers */
477 obj
->o
.type
= malloc(sizeof(struct ubus_object_type
));
483 memset(obj
->o
.type
, 0, sizeof(struct ubus_object_type
));
484 obj
->o
.type
->name
= lua_tostring(L
, -2);
486 obj
->o
.type
->methods
= obj
->o
.methods
;
488 /* create the callback lookup table */
489 lua_createtable(L
, 1, 0);
490 lua_getglobal(L
, "__ubus_cb");
491 lua_pushvalue(L
, -2);
492 obj
->r
= luaL_ref(L
, -2);
495 /* scan each method */
497 while (lua_next(L
, -3) != 0) {
498 /* check if its the subscriber notification callback */
499 if( lua_type( L
, -2 ) == LUA_TSTRING
&&
500 lua_type( L
, -1 ) == LUA_TFUNCTION
){
501 if( !strcmp( lua_tostring( L
, -2 ), "__subscriber_cb" ) )
502 ubus_lua_load_newsub_cb( L
, obj
);
505 /* check if it looks like a method */
506 if ((lua_type(L
, -2) != LUA_TSTRING
) ||
507 (lua_type(L
, -1) != LUA_TTABLE
) ||
508 !lua_objlen(L
, -1)) {
513 if (!ubus_lua_load_methods(L
, &m
[midx
]))
518 obj
->o
.type
->n_methods
= obj
->o
.n_methods
= midx
;
520 /* pop the callback table */
526 static int ubus_lua_add(lua_State
*L
)
528 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
530 /* verify top level object */
531 if (lua_istable(L
, 1)) {
532 lua_pushstring(L
, "you need to pass a table");
537 /* scan each object */
539 while (lua_next(L
, -2) != 0) {
540 struct ubus_object
*obj
= NULL
;
542 /* check if the object has a table of methods */
543 if ((lua_type(L
, -2) == LUA_TSTRING
) && (lua_type(L
, -1) == LUA_TTABLE
)) {
544 obj
= ubus_lua_load_object(L
);
547 ubus_add_object(c
->ctx
, obj
);
549 /* allow future reference of ubus obj */
550 lua_pushstring(state
,"__ubusobj");
551 lua_pushlightuserdata(state
, obj
);
552 lua_settable(state
,-3);
562 ubus_lua_notify( lua_State
*L
)
564 struct ubus_lua_connection
*c
;
565 struct ubus_object
*obj
;
568 c
= luaL_checkudata(L
, 1, METANAME
);
569 method
= luaL_checkstring(L
, 3);
570 luaL_checktype(L
, 4, LUA_TTABLE
);
572 if( !lua_islightuserdata( L
, 2 ) ){
573 lua_pushfstring( L
, "Invald 2nd parameter, expected ubus obj ref" );
576 obj
= lua_touserdata( L
, 2 );
578 /* create parameters from table */
579 blob_buf_init(&c
->buf
, 0);
580 if( !ubus_lua_format_blob_array( L
, &c
->buf
, true ) ){
581 lua_pushfstring( L
, "Invalid 4th parameter, expected table of arguments" );
585 ubus_notify( c
->ctx
, obj
, method
, c
->buf
.head
, -1 );
590 ubus_lua_signatures_cb(struct ubus_context
*c
, struct ubus_object_data
*o
, void *p
)
592 lua_State
*L
= (lua_State
*)p
;
597 ubus_lua_parse_blob_array(L
, blob_data(o
->signature
), blob_len(o
->signature
), true);
601 ubus_lua_signatures(lua_State
*L
)
604 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
605 const char *path
= luaL_checkstring(L
, 2);
607 rv
= ubus_lookup(c
->ctx
, path
, ubus_lua_signatures_cb
, L
);
609 if (rv
!= UBUS_STATUS_OK
)
613 lua_pushinteger(L
, rv
);
622 ubus_lua_call_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
624 lua_State
*L
= (lua_State
*)req
->priv
;
630 ubus_lua_parse_blob_array(L
, blob_data(msg
), blob_len(msg
), true);
634 ubus_lua_call(lua_State
*L
)
638 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
639 const char *path
= luaL_checkstring(L
, 2);
640 const char *func
= luaL_checkstring(L
, 3);
642 luaL_checktype(L
, 4, LUA_TTABLE
);
643 blob_buf_init(&c
->buf
, 0);
645 if (!ubus_lua_format_blob_array(L
, &c
->buf
, true))
648 lua_pushinteger(L
, UBUS_STATUS_INVALID_ARGUMENT
);
652 rv
= ubus_lookup_id(c
->ctx
, path
, &id
);
657 lua_pushinteger(L
, rv
);
662 rv
= ubus_invoke(c
->ctx
, id
, func
, c
->buf
.head
, ubus_lua_call_cb
, L
, c
->timeout
* 1000);
664 if (rv
!= UBUS_STATUS_OK
)
668 lua_pushinteger(L
, rv
);
672 return lua_gettop(L
) - top
;
676 ubus_event_handler(struct ubus_context
*ctx
, struct ubus_event_handler
*ev
,
677 const char *type
, struct blob_attr
*msg
)
679 struct ubus_lua_event
*listener
= container_of(ev
, struct ubus_lua_event
, e
);
681 lua_getglobal(state
, "__ubus_cb_event");
682 lua_rawgeti(state
, -1, listener
->r
);
683 lua_remove(state
, -2);
685 if (lua_isfunction(state
, -1)) {
686 ubus_lua_parse_blob_array(state
, blob_data(msg
), blob_len(msg
), true);
687 lua_call(state
, 1, 0);
693 static struct ubus_event_handler
*
694 ubus_lua_load_event(lua_State
*L
)
696 struct ubus_lua_event
* event
= NULL
;
698 event
= malloc(sizeof(struct ubus_lua_event
));
702 memset(event
, 0, sizeof(struct ubus_lua_event
));
703 event
->e
.cb
= ubus_event_handler
;
705 /* update the he callback lookup table */
706 lua_getglobal(L
, "__ubus_cb_event");
707 lua_pushvalue(L
, -2);
708 event
->r
= luaL_ref(L
, -2);
709 lua_setfield(L
, -1, lua_tostring(L
, -3));
715 ubus_lua_listen(lua_State
*L
) {
716 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
718 /* verify top level object */
719 luaL_checktype(L
, 2, LUA_TTABLE
);
721 /* scan each object */
723 while (lua_next(L
, -2) != 0) {
724 struct ubus_event_handler
*listener
;
726 /* check if the key is a string and the value is a method */
727 if ((lua_type(L
, -2) == LUA_TSTRING
) && (lua_type(L
, -1) == LUA_TFUNCTION
)) {
728 listener
= ubus_lua_load_event(L
);
729 if(listener
!= NULL
) {
730 ubus_register_event_handler(c
->ctx
, listener
, lua_tostring(L
, -2));
739 ubus_sub_remove_handler(struct ubus_context
*ctx
, struct ubus_subscriber
*s
,
742 struct ubus_lua_subscriber
*sub
;
744 sub
= container_of(s
, struct ubus_lua_subscriber
, s
);
746 lua_getglobal(state
, "__ubus_cb_subscribe");
747 lua_rawgeti(state
, -1, sub
->rremove
);
748 lua_remove(state
, -2);
750 if (lua_isfunction(state
, -1)) {
751 lua_call(state
, 0, 0);
758 ubus_sub_notify_handler(struct ubus_context
*ctx
, struct ubus_object
*obj
,
759 struct ubus_request_data
*req
, const char *method
,
760 struct blob_attr
*msg
)
762 struct ubus_subscriber
*s
;
763 struct ubus_lua_subscriber
*sub
;
765 s
= container_of(obj
, struct ubus_subscriber
, obj
);
766 sub
= container_of(s
, struct ubus_lua_subscriber
, s
);
768 lua_getglobal(state
, "__ubus_cb_subscribe");
769 lua_rawgeti(state
, -1, sub
->rnotify
);
770 lua_remove(state
, -2);
772 if (lua_isfunction(state
, -1)) {
774 ubus_lua_parse_blob_array(state
, blob_data(msg
), blob_len(msg
), true);
775 lua_call(state
, 1, 0);
777 lua_call(state
, 0, 0);
789 ubus_lua_do_subscribe( struct ubus_context
*ctx
, lua_State
*L
, const char* target
,
790 int idxnotify
, int idxremove
)
794 struct ubus_lua_subscriber
*sub
;
796 if( ( status
= ubus_lookup_id( ctx
, target
, &id
) ) ){
797 lua_pushfstring( L
, "Unable find target, status=%d", status
);
801 sub
= malloc( sizeof( struct ubus_lua_subscriber
) );
802 memset( sub
, 0, sizeof( struct ubus_lua_subscriber
) );
804 lua_pushstring( L
, "Out of memory" );
809 lua_getglobal(L
, "__ubus_cb_subscribe");
810 lua_pushvalue(L
, idxnotify
);
811 sub
->rnotify
= luaL_ref(L
, -2);
813 sub
->s
.cb
= ubus_sub_notify_handler
;
817 lua_getglobal(L
, "__ubus_cb_subscribe");
818 lua_pushvalue(L
, idxnotify
);
819 sub
->rnotify
= luaL_ref(L
, -2);
821 sub
->s
.remove_cb
= ubus_sub_remove_handler
;
824 if( ( status
= ubus_register_subscriber( ctx
, &sub
->s
) ) ){
825 lua_pushfstring( L
, "Failed to register subscriber, status=%d", status
);
829 if( ( status
= ubus_subscribe( ctx
, &sub
->s
, id
) ) ){
830 lua_pushfstring( L
, "Failed to register subscriber, status=%d", status
);
836 ubus_lua_subscribe(lua_State
*L
) {
837 int idxnotify
, idxremove
, stackstart
;
838 struct ubus_lua_connection
*c
;
841 idxnotify
= idxremove
= 0;
842 stackstart
= lua_gettop( L
);
845 c
= luaL_checkudata(L
, 1, METANAME
);
846 target
= luaL_checkstring(L
, 2);
847 luaL_checktype(L
, 3, LUA_TTABLE
);
850 lua_pushstring( L
, "notify");
851 lua_gettable( L
, 3 );
852 if( lua_type( L
, -1 ) == LUA_TFUNCTION
){
853 idxnotify
= lua_gettop( L
);
858 lua_pushstring( L
, "remove");
859 lua_gettable( L
, 3 );
860 if( lua_type( L
, -1 ) == LUA_TFUNCTION
){
861 idxremove
= lua_gettop( L
);
867 ubus_lua_do_subscribe( c
->ctx
, L
, target
, idxnotify
, idxremove
);
869 if( lua_gettop( L
) > stackstart
)
870 lua_pop( L
, lua_gettop( L
) - stackstart
);
876 ubus_lua_send(lua_State
*L
)
878 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
879 const char *event
= luaL_checkstring(L
, 2);
882 return luaL_argerror(L
, 2, "no event name");
884 // Event content convert to ubus form
885 luaL_checktype(L
, 3, LUA_TTABLE
);
886 blob_buf_init(&c
->buf
, 0);
888 if (!ubus_lua_format_blob_array(L
, &c
->buf
, true)) {
890 lua_pushinteger(L
, UBUS_STATUS_INVALID_ARGUMENT
);
895 ubus_send_event(c
->ctx
, event
, c
->buf
.head
);
903 ubus_lua__gc(lua_State
*L
)
905 struct ubus_lua_connection
*c
= luaL_checkudata(L
, 1, METANAME
);
907 blob_buf_free(&c
->buf
);
911 memset(c
, 0, sizeof(*c
));
917 static const luaL_Reg ubus
[] = {
918 { "connect", ubus_lua_connect
},
919 { "objects", ubus_lua_objects
},
920 { "add", ubus_lua_add
},
921 { "notify", ubus_lua_notify
},
922 { "reply", ubus_lua_reply
},
923 { "signatures", ubus_lua_signatures
},
924 { "call", ubus_lua_call
},
925 { "close", ubus_lua__gc
},
926 { "listen", ubus_lua_listen
},
927 { "send", ubus_lua_send
},
928 { "subscribe", ubus_lua_subscribe
},
929 { "__gc", ubus_lua__gc
},
933 /* avoid missing prototype warning */
934 int luaopen_ubus(lua_State
*L
);
937 luaopen_ubus(lua_State
*L
)
939 /* create metatable */
940 luaL_newmetatable(L
, METANAME
);
942 /* metatable.__index = metatable */
943 lua_pushvalue(L
, -1);
944 lua_setfield(L
, -2, "__index");
947 luaL_register(L
, NULL
, ubus
);
951 luaL_register(L
, MODNAME
, ubus
);
953 /* set some enum defines */
954 lua_pushinteger(L
, BLOBMSG_TYPE_ARRAY
);
955 lua_setfield(L
, -2, "ARRAY");
956 lua_pushinteger(L
, BLOBMSG_TYPE_TABLE
);
957 lua_setfield(L
, -2, "TABLE");
958 lua_pushinteger(L
, BLOBMSG_TYPE_STRING
);
959 lua_setfield(L
, -2, "STRING");
960 lua_pushinteger(L
, BLOBMSG_TYPE_INT64
);
961 lua_setfield(L
, -2, "INT64");
962 lua_pushinteger(L
, BLOBMSG_TYPE_INT32
);
963 lua_setfield(L
, -2, "INT32");
964 lua_pushinteger(L
, BLOBMSG_TYPE_INT16
);
965 lua_setfield(L
, -2, "INT16");
966 lua_pushinteger(L
, BLOBMSG_TYPE_INT8
);
967 lua_setfield(L
, -2, "INT8");
968 lua_pushinteger(L
, BLOBMSG_TYPE_BOOL
);
969 lua_setfield(L
, -2, "BOOLEAN");
971 /* used in our callbacks */
974 /* create the callback table */
975 lua_createtable(L
, 1, 0);
976 lua_setglobal(L
, "__ubus_cb");
978 /* create the event table */
979 lua_createtable(L
, 1, 0);
980 lua_setglobal(L
, "__ubus_cb_event");
982 /* create the subscriber table */
983 lua_createtable(L
, 1, 0);
984 lua_setglobal(L
, "__ubus_cb_subscribe");
986 /* create the publisher table - notifications of new subs */
987 lua_createtable(L
, 1, 0);
988 lua_setglobal(L
, "__ubus_cb_publisher");