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* add support for parsing measurement results (both BTS and MS side)
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Add the hooks/configure detection to compile everything with
-fvisibility=hidden and then make certain symbols visible. This
will be used to make parts of the API public.
There are no users yet but we should have some soon.
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The abnormal case is that lchan_free ist getting called due
a RSL_MT_CHAN_REL_ACK in the RSL but the refcount of this
channel is not zero. This means that some "logical operation"
is still going on that needs to be cancelled.
Instead of always queuing up all operations in the
struct gsm_lchan use the signal framework to inform higher
layers about this abnormal case.
In gsm_04_08.c a signal handler is installed and in the
abnormal case the location updating request operation is
freed.
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This was a stupid decision. We will have to assign the
network at some other place. The problem will be a problem
when we have two gsm_networks in one process and the same
subscriber is traveling in both networks.
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The pointer was initially added to support to open a lchan
by using the gsm_subscriber structure. We would have restored
the struct gsm_bts from the db when loading the subscriber.
Instead we will dynamically resolve the gsm_bts and might end
up paging multiple bts in the same (stored/old) location area
until it answers.
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Cosmetic changed
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Changes the subscriber id type defintion from "long unsigned int" to "long
long unsigned int". Without, printf with '%llu' caused a crash.
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This is part of patch 22 and will log changes in the usecount
of the lchan.
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* add nm_state objects for RACK and CCLK
* add obj_class human-readable printing for all vendor obj_classes
* add human-readable printing of administrative state
* add enum for cell_alloc numbers
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* when using patch_tables(), use the ARFCN of the BTS, not the cmdline argument
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A new function trau_recv_lchan() is used to link a channel to a call reference
of a transaction. (Transactions are used in later patches.) TRAU frames will
then be forwarded to the application with the given call reference (in later
patches). Also the application can send TRAU frames by using trau_send_lchan().
A new list is introduced in trau_mux.c. (upqueue_entry) All subslots
that must be sent to application are listed here.
Received TRAU frames are written in the upqueue of application
interface, if a call reference is found in the upqueue-list. If an entry
is found the ss_entry list, the TRAU frames are bridged as before. The
frames have a message type (msg_type), a call reference (callref) and a
trau frame (data). The length of trau frame is defined by the content of
the c-bits inside the frame.
There is no support for ip.access yet, as they don't use the traditional
TRAU frame format. Harald must add this in order to use application interface
with ip-access. The bridging with ip-access works as before.
(Andreas Eversberg)
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Control. This is required for later patches, that extract the call
control from gsm_04_08.c. (Andreas Eversberg)
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no IE type included in the message. These information elements are
mandatory, so their actual IE type is known. The improved parse_tlv()
function allows to parse zero, one, or two length-value elements.
(Andreas Eversberg)
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is used for the E1's time slot. This timer replaces the "usleep()"
function, so the process will not block the execution of libbsc. The
timer is started after a frame is transmitted. If another frame is in
the transmit queue, the frame will only be queued until the timer times
out. If the timer is not running or times out, the frame is transmitted
and the timer is restarted.
The problem with partly provisioned TRX (locks show on LMT) is solved.
The adjustment for the inter frame delay of 50 miliseconds is for
further study.
(Andreas Eversberg)
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select function ob libbsc. A "polling" flag is used to enable polling.
In this case select() will not sleep until file descriptor events occurr
or nearest timer expires. Also a return value will indicate if there was
an event that has been handled. If there was an event, the application
decides to poll again and don't wait.
In case for bsc_hack, the polling flag is not set. select will sleep as
usual.
(Andreas Eversberg)
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The define "container_of" will cast pointer before assigning. Compilers
with stricter options require this. (Andreas Eversberg)
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* the return value of bsc_update_timers() is required for applications to find out if a timer was fired
(Andreas Eversberg)
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* keep track of site_id/bts_id in struct gsm_bts
* dynamically match incoming OML/RSL over TCP connections by BTS Unit ID
* introduce new debug category DINP (separate from DMI for hexdumps)
* remove ia_config() as it is no longer needed
*
* ensure that signalling links / E1 line information is correctly printed
* when bootstrapping RSL or OML, tell us for which BTS it is being doen
* separate bootstrap_bts() out from bootstrap_network()
* statically configure two ip.access BTS, one with unit id's 1800/0/0 and 1801/0/0
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parameters of ip.access BTS
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about configuring the primary OML link IP address in the NVRAM of the device.
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and vice-versa. This has not yet been tested yet.
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Patch by Andreas Eversberg to automatically release
layer2 on exit of the application. Made the naming of
the variables consistent (only release_l2 and not both
release_l2 and l2_release).
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Patch from Andreas Eversberg to allow to select the ISDN
card number. The default remains the same.
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This callback is not used from within the paging layer. We do
have a different set of callbacks in place. Remove it here.
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Introduce subscr_put_channel to release a channel and to
allow gsm_subscriber.c to hand this channel to any suitable
pending requests.
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When sending LOCATION UPDATING REQUEST Accept or when getting
a IMSI Detach update the gsm_bts of the gsm_subscriber.
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Kill mi_set_pcap_fd from the header, introduce e1_set_pcap_fd
and call it from bsc_hack.c. Hook into abis_rsl_sendmsg and
_abis_nm_sendmsg for sending and e1inp_rx_ts for reading. It compiles
and should not cause a regression.
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* gsm_util now uses caller-allocated data (rather than callee-allocated)
* correctly parse destination address
* parse (but not transcode) non-default encodings of SMS
* reject SMS to unknown destination number
* resolve target subscriber id and store incoming SMS (without header) in 'sms' table
What we're now missing is the sending part, i.e. a regular task iterating over
all pending SMS and trying to deliver them. Also, check for pending SMS once
we get a LOCATION UPDATE.
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* make sure every e1 timeslot has a valid backpointer to its line
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strings
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