John Crispin [Mon, 20 Apr 2015 09:08:26 +0000 (11:08 +0200)]
pass ubus_msg_buf to callback of internal object
Signed-off-by: John Crispin <blogic@openwrt.org>
John Crispin [Tue, 14 Apr 2015 03:12:34 +0000 (05:12 +0200)]
remove obseleted validation of key
Signed-off-by: John Crispin <blogic@openwrt.org>
陈斌 [Wed, 13 May 2015 05:52:22 +0000 (13:52 +0800)]
lua: fix memory leak problem
Signed-off-by: Chen Bin <ewolfok@126.com>
Felix Fietkau [Tue, 12 May 2015 14:56:09 +0000 (16:56 +0200)]
cli: flush stdout after printing an event
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Hans Dedecker [Tue, 28 Apr 2015 14:07:28 +0000 (16:07 +0200)]
ubus: Fix memleak in examples/client in case of failure
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Hans Dedecker [Mon, 13 Apr 2015 16:18:36 +0000 (18:18 +0200)]
ubus: Fix issues reported by static code analysis tool Klocwork
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Felix Fietkau [Thu, 22 Jan 2015 12:30:20 +0000 (13:30 +0100)]
libubus: fix processing queued messages after blocking requests
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Delio Brignoli [Wed, 1 Oct 2014 17:57:56 +0000 (19:57 +0200)]
libubus: expose ubus_connect_ctx() in public API
ubus_connect_ctx() is equivalent to ubus_connect() but accepts a
pointer to a previously allocated ubus_context struct.
ubus_shutdown() is made available as an alternative to ubus_free()
to clean up contexts initialised by ubus_connect_ctx().
Signed-off-by: Delio Brignoli <dbrignoli@audioscience.com>
Felix Fietkau [Wed, 17 Sep 2014 11:32:43 +0000 (13:32 +0200)]
libubus: define _GNU_SOURCE, needed for O_CLOEXEC
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Zefir Kurtisi [Wed, 17 Sep 2014 10:33:32 +0000 (12:33 +0200)]
libubus: fix build error in examples/server
This fixes build warning:
/ubus.git/examples/server.c: In function 'test_hello_reply':
/ubus.git/examples/server.c:69:6: error: ignoring return value of 'pipe', declared with attribute warn_unused_result [-Werror=unused-result]
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Zefir Kurtisi [Wed, 17 Sep 2014 10:30:49 +0000 (12:30 +0200)]
libubus: replace __init with __constructor
__init has a naming collision with C++ and prevents ubus_common.h
from being included. Instead, use __constructor as defined from
libubox.
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Alexandru Ardelean [Mon, 15 Sep 2014 12:42:09 +0000 (15:42 +0300)]
libubus: restore uloop_cancelled on timeout
Context: 1 loop with a single ubus_invoke() that times out calls
uloop_end() which ends the loop, and thus ends the application.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Mon, 15 Sep 2014 13:40:05 +0000 (15:40 +0200)]
libubus: preserve the received message buffer for incoming invoke calls
Set ctx->msgbuf.data to NULL during the call. If ctx->msgbuf is needed
during the call, a new buffer will be allocated. If not,
ctx->msgbuf.data is restored to the previous value afterwards
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Mon, 15 Sep 2014 13:36:03 +0000 (15:36 +0200)]
libubus: rework buffer allocation code
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Mon, 15 Sep 2014 13:29:29 +0000 (15:29 +0200)]
libubus: remove ubus_msghdr_data() by passing in the right data structure pointer
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Mon, 15 Sep 2014 13:21:40 +0000 (15:21 +0200)]
libubus: use calloc_a for queued msgs to reduce the number of allocations
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Thu, 4 Sep 2014 18:01:13 +0000 (20:01 +0200)]
libubus: fix a small memleak in ubus_register_event_handler()
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Alexandru Ardelean [Thu, 7 Aug 2014 04:32:53 +0000 (04:32 +0000)]
libubus: fix msgbuf reduction logic during receive
Signed-off-by: Alexandru Ardelean <aa@ocedo.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Sun, 31 Aug 2014 12:10:26 +0000 (14:10 +0200)]
libubus: mark ubus socket with close-on-exec
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Thu, 3 Jul 2014 18:58:37 +0000 (20:58 +0200)]
libubus: use explicit type name in ubus_msghdr_data instead of typeof()
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Thu, 3 Jul 2014 18:58:01 +0000 (20:58 +0200)]
libubus: move ubus_msghdr_data to libubus-internal.h
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Alexandru Ardelean [Fri, 27 Jun 2014 16:11:45 +0000 (19:11 +0300)]
ubus: add count test to validate large message sizes
Client creates a string "1 2 3 ... 10000 ...", sends it to the server
along with the maximum number in the string.
Server creates another string like the client sent.
It validates it and, returns strcmp()'s result.
This is loop-ed every 2 seconds.
Alexandru Ardelean [Fri, 27 Jun 2014 16:11:44 +0000 (19:11 +0300)]
libubus: fix ubus_invoke() to return err in case ubus_start_request() fails
Seems the UBUS_MAX_MSGLEN is ignored by ubus_invoke(),
and then segfault happens.
This issue is present before this set of patches.
Alexandru Ardelean [Fri, 27 Jun 2014 16:11:43 +0000 (19:11 +0300)]
ubusd: replace ubusd_msg_unshare() with ubus_msg_new() to prevent invalid free-ing
The realloc is problematic mostly with large packets, as the pointer changes
so what eventually gets free'd is invalid.
Note that ub ptr param in the call will be passed on to a ubus_msg_free(),
right after ubus_msg_ref() finishes.
This bug stayed hidden the same way as the bug in libubus writev_retry().
Since the write/sendmsg function can send about ~200k the ubus_msg_enqueue()
call does not get triggered.
Alexandru Ardelean [Fri, 27 Jun 2014 16:11:42 +0000 (19:11 +0300)]
libubus: fix writev_retry() function when writing large packets
Seems this bug stayed hidden for a while, because the write/sendmsg function
can send up to ~200k in one send, so it looked at first why there was
some data mismatch.
Alexandru Ardelean [Fri, 27 Jun 2014 16:11:41 +0000 (19:11 +0300)]
libubus: add logic to reduce msgbuf data size after 16 small messages
Alexandru Ardelean [Fri, 27 Jun 2014 16:11:40 +0000 (19:11 +0300)]
ubus: increase message size limit and make it configurable at build-time
Alexandru Ardelean [Fri, 27 Jun 2014 16:11:39 +0000 (19:11 +0300)]
libubus: refactor ubus_context msgbuf data to be dynamically allocated
Felix Fietkau [Tue, 24 Jun 2014 20:42:14 +0000 (22:42 +0200)]
libubus: fix deferring invoke processing for non-uloop usage
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 24 Jun 2014 20:34:50 +0000 (22:34 +0200)]
libubus: always defer processing incoming invoke/unsubscribe/notify if there is a request pending
This fixes recursion problems on config reload in netifd and simplifies
application handling of requests
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 6 May 2014 14:55:34 +0000 (16:55 +0200)]
cli: implement wait_for
Allows waiting for one or more objects to appear
Returns instantly if objects are already present
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Steven Barth [Mon, 5 May 2014 17:47:32 +0000 (19:47 +0200)]
lua: forward return codes from lua to ubus
Signed-off-by: Steven Barth <cyrus@openwrt.org>
Tested-by: Luka Perkov <luka@openwrt.org>
Felix Fietkau [Sat, 26 Apr 2014 22:40:23 +0000 (00:40 +0200)]
libubus: add support for defining a policy mask
This allows sharing a policy array across methods, but masking out
unused entries for individual methods.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 1 Apr 2014 11:45:29 +0000 (13:45 +0200)]
ubusd: fix processing object method signatures
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 18 Mar 2014 21:36:36 +0000 (22:36 +0100)]
libubus: do not use uloop_run() inside ubus_complete_request
Avoid unrelated uloop callbacks by using poll() on the ubus fd instead.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 18 Mar 2014 21:12:21 +0000 (22:12 +0100)]
libubus-internal: use the __hidden definition from libubox
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Thu, 27 Feb 2014 15:48:53 +0000 (16:48 +0100)]
libubus: close file descriptor after passing it in the status msg
Simplifies handling of non-deferred requests
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Karl Vogel [Tue, 11 Feb 2014 08:27:36 +0000 (09:27 +0100)]
ubus: Fix imbalance in lua stack push/pop of values.
The lua getglobal and rawgeti both push a value onto the lua stack,
but they weren't being removed by the ubus_method_handler function,
thus corrupting the lua stack.
In case the specified method wasn't a function, the stack was also
corrupted as the method name remained on the stack.
Signed-off-by: Karl Vogel <karl.vogel@gmail.com>
Felix Fietkau [Tue, 18 Feb 2014 14:03:44 +0000 (15:03 +0100)]
examples/client: receive data from the passed file descriptor
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 18 Feb 2014 14:03:22 +0000 (15:03 +0100)]
examples/server: send a file descriptor as part of the request to the "hello" method
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 18 Feb 2014 14:02:48 +0000 (15:02 +0100)]
libubus: implement file descriptor passing support
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 18 Feb 2014 14:01:39 +0000 (15:01 +0100)]
ubusd: implement protocol support for passing file descriptors as part of request completion msgs from objects to clients
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Luka Perkov [Sun, 26 Jan 2014 17:33:36 +0000 (17:33 +0000)]
lua: allow methods with no arguments
In C it is possible to have methods without arguments (UBUS_METHOD_NOARG).
Enable support for the same calls in Lua too.
This commit also fixes segfault which can be caused by passing non-table type
where table is expected. The lua_gettablelen() function is called after we have
made sure we are dealing with a table in the first place.
Signed-off-by: Luka Perkov <luka@openwrt.org>
Luka Perkov [Sun, 26 Jan 2014 17:32:10 +0000 (17:32 +0000)]
lua: fix whitespaces and typo
Signed-off-by: Luka Perkov <luka@openwrt.org>
John Crispin [Wed, 22 Jan 2014 13:53:11 +0000 (13:53 +0000)]
add auto (re)connect logic to libubus
Signed-off-by: John Crispin <blogic@openwrt.org>
John Crispin [Thu, 7 Nov 2013 12:51:11 +0000 (13:51 +0100)]
add Lua bindings for ubus events
It mostly mimick the style of the existing code.
With it and the ubox Lua bindings, you can now send ubus events
through Lua or listen for events (you can register for multiple events
at the same time).
Signed-off-by: Jeff Remy <jeff.remy@gmail.com>
Felix Fietkau [Tue, 29 Oct 2013 16:28:33 +0000 (17:28 +0100)]
libubus: pull the variable length data array out of struct ubus_msghdr to fix builds with clang
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Jo-Philipp Wich [Sat, 28 Sep 2013 17:23:01 +0000 (17:23 +0000)]
ubusd: use umask of 0177 for now to prevent a world- and group-writable unix socket
Lukasz Baj [Thu, 29 Aug 2013 09:05:51 +0000 (11:05 +0200)]
libubus: Check if remove callback exists before call it
When process unsubscribes then remove callback is called. But it
can be NULL if not defined, so we should check it before we call it.
Signed-off-by: Lukasz Baj <l.baj@radytek.com>
Felix Fietkau [Thu, 8 Aug 2013 20:42:50 +0000 (22:42 +0200)]
libubus: detect read/write errors and set the eof flag, even if uloop is not used as main event loop
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Thu, 8 Aug 2013 20:14:27 +0000 (22:14 +0200)]
libubus: fix publishing objects after reconnect
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Yousong Zhou [Thu, 25 Jul 2013 12:38:09 +0000 (20:38 +0800)]
Add a return value to make compiler silent.
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Yousong Zhou [Thu, 25 Jul 2013 12:38:08 +0000 (20:38 +0800)]
Fix the condition for stopping the writev_retry.
All iov's were sent only after the last were sent (iov_len == 0). We
could have 'cur_len == 0' if the sent iov's were sent wholly but not all
iov's were sent (how about all but the last).
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Felix Fietkau [Thu, 30 May 2013 10:39:51 +0000 (12:39 +0200)]
libubus: fix logic inversion for cancelling requests
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Wed, 29 May 2013 10:53:17 +0000 (12:53 +0200)]
cli: use the new json-c library name
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Sat, 11 May 2013 18:39:54 +0000 (20:39 +0200)]
libubus: fix deadlock in recursive synchronous ubus requests
When synchronous request completion loops are running, the innermost
loop can receive events that can unblock the outer loops, however the
loop clears uloop_cancelled (which is set by the request completion).
This causes the event loop to continue running even while a completion
loop has already been unblocked.
Fix this by not clearing uloop_cancelled for inner loops
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Thu, 4 Apr 2013 20:03:03 +0000 (22:03 +0200)]
libubus: fix crash on reconnect with objects that have no type
Signed-off-by: John Crispin <blogic@openwrt.org>
Felix Fietkau [Sun, 17 Mar 2013 17:29:38 +0000 (18:29 +0100)]
libubus: fix passing the return code of the subscriber callback to the notifier
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Sun, 17 Mar 2013 16:55:11 +0000 (17:55 +0100)]
libubus: fix synchronous ubus_notify without waiting for a timeout
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Sun, 17 Mar 2013 02:11:35 +0000 (03:11 +0100)]
libubus: add ubus_unregister_subscriber wrapper
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Wed, 6 Mar 2013 15:56:33 +0000 (16:56 +0100)]
libubus: add UBUS_METHOD_NOARG
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Thomas Gstädtner [Mon, 4 Mar 2013 18:05:09 +0000 (19:05 +0100)]
add systemd support
This adds basic systemd support, incl. socket activation.
If systemd build is disabled, there won't be any sign of it neither
during build nor after.
If systemd build is enabled (default), but systemd is not available,
no systemd stuff is installed, so there is no impact whatsoever.
Thomas Gstädtner [Mon, 4 Mar 2013 18:05:08 +0000 (19:05 +0100)]
make UBUS_UNIX_SOCKET configurable via cmake
this is mainly useful to have a single location to read the setting
from, when it is used multiple times at build time (which it will in a
following patch) :)
Thomas Gstädtner [Sun, 3 Mar 2013 02:06:20 +0000 (03:06 +0100)]
add INCLUDE_DIRECTORIES to subdirectories
Thomas Gstädtner [Sun, 3 Mar 2013 02:06:19 +0000 (03:06 +0100)]
make building examples an option
Felix Fietkau [Wed, 23 Jan 2013 14:22:46 +0000 (15:22 +0100)]
build: remove install prefix override
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Jo-Philipp Wich [Sun, 13 Jan 2013 19:37:00 +0000 (20:37 +0100)]
lua: pass u64 blob type as double to Lua
Felix Fietkau [Sun, 30 Dec 2012 13:12:10 +0000 (14:12 +0100)]
libubus: free internal blob_buf memory when freeing an ubus context
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Sat, 15 Dec 2012 15:52:03 +0000 (16:52 +0100)]
examples: disable the message on the server example, measure the notify latency on the client example
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Sat, 15 Dec 2012 15:51:28 +0000 (16:51 +0100)]
libubus: fix data type of request sequence counter. fixes hang after ~64K requests
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Sat, 15 Dec 2012 13:11:15 +0000 (14:11 +0100)]
libubus: fix uninitialized variable warning
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 23:37:26 +0000 (00:37 +0100)]
examples: use blocking notify
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 23:37:09 +0000 (00:37 +0100)]
libubus: implement notify handling
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 23:35:12 +0000 (00:35 +0100)]
libubus: fix segfaults on request timeouts
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 23:32:27 +0000 (00:32 +0100)]
ubusd: implement notify forwarding with status reporting
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 20:27:52 +0000 (21:27 +0100)]
libubus: check if subscriber cb is non-NULL before calling it
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 19:05:34 +0000 (20:05 +0100)]
libubus: do not send a status reply if UBUS_ATTR_NO_REPLY is set
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 19:05:06 +0000 (20:05 +0100)]
libubus: add UBUS_ATTR_NO_REPLY and add policy for UBUS_ATTR_ACTIVE
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 18:48:26 +0000 (19:48 +0100)]
move ubus_start_request to libubus-req.c
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 13:14:43 +0000 (14:14 +0100)]
libubus: remove accidentally committed unused header file
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 13:13:27 +0000 (14:13 +0100)]
libubus: refactor code, move request handling to libubus-req.c
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 12:42:10 +0000 (13:42 +0100)]
libubus: reduce code duplication and add stack depth protection for unsubscribe/notify callbacks
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 12:11:40 +0000 (13:11 +0100)]
remove the "method" argument for object subscription
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Fri, 14 Dec 2012 12:00:49 +0000 (13:00 +0100)]
ubus: add notification for subscribers present/gone
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Thu, 13 Dec 2012 17:44:15 +0000 (18:44 +0100)]
watch add/remove -> subscribe/unsubscribe:
rename the ADD_WATCH/REMOVE_WATCH messages to SUBSCRIBE/UNSUBSCRIBE and change
the message format and libubus API in preparation for adding object notifications
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 11 Dec 2012 17:53:17 +0000 (18:53 +0100)]
ubusd: use avl_strcmp
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Tue, 30 Oct 2012 12:41:17 +0000 (13:41 +0100)]
libubus: fix stack space init for processing requests
Fixes client timeouts on invoke on some platforms
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Felix Fietkau [Wed, 24 Oct 2012 12:37:44 +0000 (14:37 +0200)]
libubus: split out some code into separate source files
Felix Fietkau [Mon, 1 Oct 2012 13:03:26 +0000 (15:03 +0200)]
examples: split client/server code
Felix Fietkau [Mon, 1 Oct 2012 12:54:54 +0000 (14:54 +0200)]
move example to examples/
Jo-Philipp Wich [Wed, 17 Oct 2012 13:32:26 +0000 (15:32 +0200)]
lua: remove a superfluous lua_pop() when checking table style
Jo-Philipp Wich [Tue, 16 Oct 2012 16:37:31 +0000 (19:37 +0300)]
lua: fix ubus_lua_format_blob_is_array() to not leave garbage on the stack
Felix Fietkau [Mon, 1 Oct 2012 12:09:37 +0000 (14:09 +0200)]
add deferred reply to the ubus server example
Felix Fietkau [Mon, 1 Oct 2012 12:09:19 +0000 (14:09 +0200)]
add support for deferring a reply to a method invoke call
John Crispin [Fri, 28 Sep 2012 23:37:37 +0000 (01:37 +0200)]
lua: propagate incoming message to method callback inside the lua context
Signed-off-by: John Crispin <blogic@openwrt.org>
Felix Fietkau [Fri, 28 Sep 2012 21:10:23 +0000 (23:10 +0200)]
cli: add array and table types to method signature dump
John Crispin [Wed, 26 Sep 2012 16:27:10 +0000 (18:27 +0200)]
add lua binding test scripts
Signed-off-by: John Crispin <blogic@openwrt.org>
Felix Fietkau [Thu, 27 Sep 2012 12:00:49 +0000 (14:00 +0200)]
lua: add support for registering methods
Signed-off-by: John Crispin <blogic@openwrt.org>
Felix Fietkau [Thu, 27 Sep 2012 11:59:47 +0000 (13:59 +0200)]
lua: add uloop support
John Crispin [Wed, 26 Sep 2012 16:27:09 +0000 (18:27 +0200)]
lua: allow building the lua binding with vanilla lua
Signed-off-by: John Crispin <blogic@openwrt.org>