Commit Graph

3763 Commits

Author SHA1 Message Date
Holger Hans Peter Freyther a27303094a sgsn/ctrl: Add ctrl interface, implement listing subscribers
Add the control interface with no hierachy right now and implement
the first command to list IMSI + Context Address of active sessions.
sgsn_cmd_handle could share more code with bsc variant.

Fixes: SYS#264, SYS#265
2014-03-23 18:34:58 +01:00
Holger Hans Peter Freyther 49f9e5b6b4 ctrl: Move the lookup into a separate file in preparation for GPRS
For GPRS the look-up via bts/trx does not make any sense and would
introduce bad depdencies for the SGSN. Move the look-up code to a
new file and introduce new setup methods.
2014-03-23 16:25:16 +01:00
Holger Hans Peter Freyther d883db027b nitb/ctrl: Implement a command to list all active subscribers
This is only useful for small networks. List the IMSI and MSISDN
of all active subscribers.

Fixes: SYS#266
2014-03-23 16:22:55 +01:00
Holger Hans Peter Freyther 2d99eeb7f2 nitb/ctrl: Implement creating and deleting subscribers
Sadly there is no proper foreign key relationship on the tables
that related to the Subscriber. This means we can't use a DELETE
with Cascade and need to delete everything by hand. To make things
worse maybe the SMS/Paging code is still using the subscriber
making the operation more dangerous. I had added NULL checks for
sender_id/receiver_id at 30C3 so we should not crash in this
situation.

Fixes: SYS#274
2014-03-23 14:05:49 +01:00
Holger Hans Peter Freyther 9dbc3f8db7 nitb/ctrl: Add command to add/modify a subscriber to the database
The test has been manually verified. Executing the select for
the subscribers showed:

sqlite> select * from Subscriber;
1|2014-03-23 12:12:46|2014-03-23 12:19:09|2620345||445567|1||0|

This created a subscriber with the right IMSI, MSISDN and has
it authorized.

Fixes: SYS#275
2014-03-23 14:05:49 +01:00
Holger Hans Peter Freyther d092f48648 nitb/ctrl: Add ctrl command to set the TRX max_power_reduction
In case the BTS is connected the new attribute should be set
through OML. This is left as a todo item.

Addresses: SYS#267
2014-03-23 14:05:22 +01:00
Holger Hans Peter Freyther ebe55aa95a systemd: Add service for the osmo-sgsn
Fixes: SYS#175
2014-03-21 17:43:19 +01:00
Holger Hans Peter Freyther 2826cb58bb systemd: Saying these services restart once should be enough 2014-03-21 17:41:45 +01:00
Andreas Eversberg 63bfdd83ea mncc: Add support for half rate V1 frames to MNCC/RTP interface 2014-03-20 22:36:16 +01:00
Andreas Eversberg 9acbe4cefe mncc: Use helper function to check if an MNCC frame is data (speech/traffic)
Rename method mncc_rcv_tchf() to mncc_rcv_data(), because the check applies
to all types of data frames, not only TCH/F data.
2014-03-20 22:36:16 +01:00
Andreas Eversberg f78fc4e76e mncc: Complete definitions for all speech traffic frames at MNCC interface
The new definitions are: half rate and AMR

Change of definition name for bad frame, because it applies to all types of
traffic, not only TCH/F.

Increase MNCC interface version to 4. Version 3 is skipped, because it was
used by older version of Linux-Call-Router which is incompatible with the
current version of the MNCC interface.
2014-03-20 22:36:16 +01:00
Holger Hans Peter Freyther f50f70452f mgcp: The valid payload types start at 0. Fix the VTY 2014-03-20 22:34:37 +01:00
Holger Hans Peter Freyther 162a0becc5 systemd: Remove the second occurance of Restart=always 2014-03-13 18:37:19 +01:00
Nikola 9e55636fe0 trau: Fix linking on FreeBSD by using LIBRAY_DL 2014-03-11 15:41:50 +01:00
Alexander Chemeris 9e15e187cc sms: Rename gsm340_gen_tpdu() to gsm340_gen_sms_deliver_tpdu()
Rename gsm340_gen_tpdu() to gsm340_gen_sms_deliver_tpdu() to
show that it generates SMS-DELIVER TPDU and is not a generic function.
2014-03-09 19:27:46 +01:00
Alexander Chemeris 1e77e3dc5b db,sms: Rename db_sms_mark_sent() to db_sms_mark_delivered()
In MT-SMS the message is being delivered. Make the naming follow
that. The schema still refers to "sent" while it should be "delivered"
too.
2014-03-09 10:26:11 +01:00
Alexander Chemeris 82a1858eb0 db: Add more tests for retrieving subscribers from a DB. 2014-03-09 10:24:11 +01:00
Alexander Chemeris 7e20f64f27 db: Remove the german from the log message 2014-03-07 17:05:23 +01:00
Holger Hans Peter Freyther ed0d4f6222 nitb/smpp: Add simple test runner for the issues found by daniel
Send the two strings that caused the read handling to misbehave.
Verify that we handle this correctly by still being able to issue
a VTY command. The CPU load issue could not be verified like this.
2014-03-06 23:48:17 +01:00
Daniel Willmann 1fc8ec66a3 smpp_smsc: Fix integer overflow in read return value and msgb_alloc()
The size parameter of msgb_alloc is uint16_t so any length value above
65535 will allocate a msgb with incorrect size.

This patch changes the type of rdlen and rc to ssize_t (the return value
of read) and guards against the read length being larger than
UINT16_MAX.

To reproduce the issue run:
echo -en "\x00\x01\x00\x01\x01" |socat stdin tcp:localhost:2775
2014-03-06 23:20:30 +01:00
Daniel Willmann b6f01e77b1 smpp_smsc: Check that the size is large enough to hold actual data
The first 4 bytes are the length including the length field. For
length < 4 the subsequent msgb_put(msg, sizeof(uint32_t)) will fail,
resulting in an abort. The code also expects (in smpp_msgb_cmdid()) the
existence of 4 more bytes for the SMPP command ID.

This patch checks that the length received is large enough to hold all
8 bytes in the msgb and drops the connection if that's not the case.

The issue is reproducible with:
echo -e "\x00\x00\x00\x02\x00" |socat stdin tcp:localhost:2775
2014-03-06 23:20:30 +01:00
Daniel Willmann a4540b2c3b smpp_smsc: Fix socket read() error handling
Read returning -1 is an error here so make sure to print the actual
reason and close the socket. Before this patch we just looped over the
fd with read returning -1 every time.

EINTR is handled to not cause an error and we don't need to check
EAGAIN/EWOULDBLOCK since the callback is only called in case there is
something to read.

To avoid copy&paste issues the check is implemented as a macro and the
log message moved into a separate if.
2014-03-06 23:20:30 +01:00
Ciaby ec6e4f8b3d nitb: Add a test for "show network" in the python testsuite.
Make sure that bsc_gsmnet->bsc_data->rf_ctrl is initialized for
NITB. In commit a9fae1ae66 the
conditions for the rf_ctrl was removed but it was still needed
for the NITB.

Fixes regression from:
a9fae1ae66
bsc: rf_ctrl will always be created, remove the NULL checks
2014-03-06 17:31:23 +01:00
Holger Hans Peter Freyther 4ecc6877a2 nat: Add CTRL command test case for the new control commands 2014-03-06 11:04:56 +01:00
Holger Hans Peter Freyther 472f3bd198 nat: Introduce command to remove an access-list-name 2014-03-04 20:39:38 +01:00
Holger Hans Peter Freyther bc3780a73f nat: Implement setting the access-control-name through CTRL interface
For operation we want to switch the access-list of a BSC at runtime
in a programatic way.

Sponsored-by: On-Waves ehf
2014-03-04 20:39:27 +01:00
Holger Hans Peter Freyther ecdf912ffb bsc: Include the MCC/MNC in the location trap
It is of interest to know the MCC/MNC that is broadcasted at the
specific position.

Sponsored-by: On-Waves ehf
2014-03-04 20:39:16 +01:00
Holger Hans Peter Freyther 3adb772853 libbsc: Add command to set MNC/MCC and apply it if something changed
Change the splitting of the ctrl_test_runner.py. Make sure that
we get one element and all the rest.
2014-03-04 20:38:49 +01:00
Holger Hans Peter Freyther 6ca9f4f5c3 libbsc: Add ctrl command to apply the configuration
Right now this only works for IP based BTS like the sysmoBTS and
by dropping the OML link.
2014-03-04 14:45:48 +01:00
Holger Hans Peter Freyther f8c42191de libbsc: Add ctrl command for MNC, MCC, short-name and long-name
Add the framework for adding more setting commands.
2014-03-04 14:45:48 +01:00
Holger Hans Peter Freyther 93de8b2591 sms: Address the TODO and schedule the next SMS for an active subscriber
When one SMS has been delivered check if a second SMS can be scheduled
to that subscriber. If nothing can be scheduled kick the normal SMS queue
as one slot has become free now. Otherwise send the SMS and create a
pending entry.
2014-02-24 16:13:04 +01:00
Holger Hans Peter Freyther 024dc77de2 sms: Do not interfere with the SMS queue from within gsm_04_11
It was possible that two SMS would be delivered at the same time
which violates GSM 04.11. We should solely rely on the sms queue
to schedule more SMS to the subscriber.
2014-02-24 14:31:39 +01:00
Holger Hans Peter Freyther 98258dbbc6 bsc: Add vty command to send location trap through VTY
I have manually tested this by entering the VTY command and
observing the CTRL interface using wireshark.

Ticket: OW#1129
2014-02-22 10:36:14 +01:00
Harald Welte 7e40be3949 SMPP: UCS2 data_coding is 0x08, not 0x80!
As can clearly be seen from SMPP Spec v3.4 Chapter 5.2.19,
a SUBMIT-SM with data_coding == 0x08 is UCS2, not with 0x80.

Thanks to ciaby@rhizomatica.org for reporting the bug.
2014-02-21 13:21:03 +01:00
Holger Hans Peter Freyther ca114432be sms: Increment the RP Message Reference for each transaction
Each RP-DATA should have a unique msg reference. Currently 42 is
used for all of these. Remember the last reference we used and
increment it on the next SMS. Do not track if the reference is
still in use a clash is a lot less likely now. First unless SMPP
is used only one SMS is delivered at a time, second the transaction
space is a lot smaller than the one for the reference.
2014-02-20 11:35:56 +01:00
Holger Hans Peter Freyther 6ab5d4f861 trau: Fix compiler warning about decoded_trau_frame
In file included from bsc_api.c:34:0:
../../include/openbsc/trau_mux.h:62:15: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
  const struct decoded_trau_frame *tf);
               ^
../../include/openbsc/trau_mux.h:62:15: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
../../include/openbsc/trau_mux.h:64:15: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
  const struct decoded_trau_frame *tf);
               ^
../../include/openbsc/trau_mux.h:66:2: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
  const unsigned char *data);
  ^
../../include/openbsc/trau_mux.h:68:2: warning: ‘struct decoded_trau_frame’ declared inside parameter list [enabled by default]
  const unsigned char *data);
2014-02-20 11:19:32 +01:00
Holger Hans Peter Freyther 34235294d7 tests: Remove unused file 2014-02-20 11:19:32 +01:00
Holger Hans Peter Freyther a9fae1ae66 bsc: rf_ctrl will always be created, remove the NULL checks 2014-02-08 12:47:39 +01:00
Holger Hans Peter Freyther 362d10f20a libbsc: Create the RF interface all the time
The interface can be accessed through CTRL and a socket. But currently
it is only available when the socket interface has been configured.
Create the interface all the time but only listen on the socket when
a path has been specified.
2014-02-08 12:47:32 +01:00
Holger Hans Peter Freyther 8cedb11350 ctrl: Make it possible to re-use the string get and set routine
This can be used for the description field that requires some
special handling for newlines.
2014-02-04 19:35:32 +01:00
Holger Hans Peter Freyther 2c7032e4eb ctrl: Make the int range set, get and verify methods available
For the max power reduction we will need to have a different range
method. It will need to check if the value is even. Make the set,
get and verify methods available through a macro.
2014-02-04 19:35:16 +01:00
Holger Hans Peter Freyther cdfc2061bb mgcp: Round the frame time otherwise we have porting issues
With the current multiplication we might end up with 19999 as
time on i386. When we round it ends up as 20000 on i386 and
should work the same on AMD64.
2014-02-03 13:32:34 +01:00
Holger Hans Peter Freyther ba41978b97 mgcp: transit is a signed variable and should be printed like this
On AMD64 we had a difference in the test result most likely due
the bigger size of integers.
2014-02-03 09:20:06 +01:00
Holger Hans Peter Freyther 757971ade8 mgcp: Use the length modifier for the size_t in the printf
Should fix on AMD64:
mgcp_test.c: In function ‘sendto’:
mgcp_test.c:318:10: warning: format ‘%d’ expects argument of type ‘int’, but argument 5 has type ‘size_t’ [-Wformat]
2014-02-03 09:18:51 +01:00
Jacob Erlbeck b281e4e6f4 mgcp/rtp: Base jitter calculation on input timestamps
So far, the jitter computation has been based on output timestamps.

This patch uses the input timestamps instead and resets jitter
computation on SSRC changes.

Sponsored-by: On-Waves ehf
2014-01-31 11:45:25 +01:00
Jacob Erlbeck eacc9b92a1 mgcp/rtp: Compute delta timestamp based on wallclock
Currently, when the SSRC changes within a stream and SSRC fixing is
enabled, the RTP timestamp between the last packet that has been
received with the old SSRC and the first packet of the new SSRC
is always incremented by one packet duration.
This can lead to audio muting (at least with the nanoBTS) when the
wallclock interval between these packets is too large (> 1s).

This patch changes the implementation to base the RTP timestamp offset
on the wallclock interval that has passed between these two packets.

Ticket: OW#466
Sponsored-by: On-Waves ehf
2014-01-31 11:44:16 +01:00
Jacob Erlbeck 303b54a2a4 mgcp/rtp: Fix transit computation units
Currently micro-secs and RTP rate get mixed when the transit value is
computed in mgcp_patch_and_count().

This patch changes get_current_ts() to accept the desired rate as
argument and to use it for the time conversion instead of always
converting to microseconds. If microseconds are needed,
get_current_ts(1000) can be used.
The arrival_time is now measured in 1/rtp_end->rate seconds so that
it can be directly compared to RTP timestamps as required by RFC3550
(section 6.4.1, see definition of 'interarrival jitter').

Sponsored-by: On-Waves ehf
2014-01-31 11:18:25 +01:00
Jacob Erlbeck e763f3e73e mgcp/test: Fake wallclock for RTP timing/stats tests
Currently the stats (jitter, transit) cannot be checked properly,
since they depend on the wallclock time.

This patch fakes clock_gettime (CLOCK_MONOTONIC) to reflect the
scheduling time of the RTP packets. In addition, the RTP statistical
value are written to stdout.
A RTP test case with a SSRC change along with a reference time delay
has been added.

Sponsored-by: On-Waves ehf
2014-01-31 11:18:25 +01:00
Jacob Erlbeck cf577c3492 mgcp/test: Only include conn_mode into test output
Currently the conn_mode and the output_enabled flags are printed to
stdout.

This patch modifies this to print the output_enabled flags to stderr
instead. The bits in conn_mode are shown as RECV, SEND, and LOOP.
This does not reduce the significance of the test, since there is an
assertion already that verifies the values of the output_enabled
flags with respect to the conn_mode.

Sponsored-by: On-Waves ehf
2014-01-31 11:18:25 +01:00
Jacob Erlbeck 8e68b56fe5 sms/dtap: Add log messages to analyse SMS message loss
Incoming DTAP messages from MS are discarded during silent calls,
which leads to the repeated delivery of SMS since the ACKs are not
being processed.

This patch adds some log messages that have been helpful to track
this down.

Sponsored-by: On-Waves ehf
2014-01-31 11:17:44 +01:00
Andreas Eversberg dcf38e1c96 Add function to update TRAU muxer after assignment or handover
E1 based BTS use TRAU muxer to decode TRAU frames. After changing
channel from one timeslot to another (due to handover or assignment),
the TRAU muxer must be updated. The call reference of the call is
disconnected from the old channel and connected to the new channel.
2014-01-27 14:39:06 +01:00
Andreas Eversberg 88012b6e87 Use 'defines' for length and duration of RTP payload 2014-01-26 08:49:35 +01:00
Holger Hans Peter Freyther 6419018e68 nat: Make the access-list deny cause configurable
Add two optional arguments to the imsi-deny rule
for the reject cause and verify that it is saved
out.
2014-01-20 10:14:05 +01:00
Holger Hans Peter Freyther 415cd2eebb nat: Introduce reject cause to bsc_nat_acc_lst_entry
The filtering architecture already allowed to specify a reject
reason but this has not been used for the access-lists. Extend
the access-list to include a reject reason and extend the test
case to honor it.
2014-01-20 10:13:36 +01:00
Jacob Erlbeck ead0529e07 mgcp/test: Don't reset conn_mode between messages
Currently, the conn_mode field is reset after it has been checked.

This patch disables this behaviour and only adds a mark (bit) to
detect modifications.

Sponsored-by: On-Waves ehf
2014-01-20 08:27:03 +01:00
Jacob Erlbeck e35fd13697 mgcp: Synchronize conn mode bits and output enabled flags
This patch changes implementation and the mgcp_connection_mode enum
in a way that net_end.output_enabled (bts_end.output_enabled) flag
always matches the MGCP_CONN_SEND_ONLY (MGCP_CONN_RECV_ONLY) bit of
conn_mode.

Based on this, the conn_mode bits are then used instead of the
output_enabled fields within mgcp_protocol.c.

Sponsored-by: On-Waves ehf
2014-01-20 08:27:03 +01:00
Jacob Erlbeck 8857c90e36 mgcp: Disable output enabled on initialisation
Currently RTP output_enabled is set to 1 on initialisation, which
does not semantically match the initial value of conn_mode
(MGCP_CONN_NONE).

This patch changes this initial value to 0.

Sponsored-by: On-Waves ehf
2014-01-20 08:27:03 +01:00
Harald Welte 94bc1e0b5e Fix more hidden TSC bugs for Ericsson BTS
It seems that also the Ericsson RBS2000 code was assuming that
we always use the bts-global TSC, rather than the possibly different
TS-specific TSC.
2014-01-19 17:32:59 +01:00
Harald Welte 1fe2412949 TSC: Add new gsm_ts_tsc() function to resolve TSC of TS
We don't want every caller to check for ts->tsc == -1 and then
using ts->trx->bts->tsc instead.  Rather, introduce a new inline
function to retrieve the correct value.
2014-01-19 17:32:59 +01:00
Harald Welte 903aaea668 Do not expect all BTSs support TSC != BCC
We introduce a new feature indicating if the given BTS model
supports a TSC that is different from the BCC (lower 3 bits of BSIC).
2014-01-19 17:32:56 +01:00
Harald Welte cd4e74df95 Make gsm48_lchan2chan_desc() reflect a ts-specific TSC
If the TS has a specific, different TSC than the BTS (beacon),
we should use that with preference over the TSC of the BTS.
2014-01-19 16:55:16 +01:00
Jacob Erlbeck 1dc022cb62 openbsc: Fix coverity issues
This patch (hopefully) fixes the new defects reported by coverity.

Addresses:
** CID 1156986:  Negative array index read  (NEGATIVE_RETURNS)
/tests/gsm0408/gsm0408_test.c: 419 in test_si_range_helpers()
/tests/gsm0408/gsm0408_test.c: 423 in test_si_range_helpers()
/tests/gsm0408/gsm0408_test.c: 427 in test_si_range_helpers()

** CID 1156987:  Unchecked return value from library
(CHECKED_RETURN)
/src/libmgcp/mgcp_protocol.c: 1150 in mgcp_keepalive_timer_cb()

** CID 1156988:  Unchecked return value from library
(CHECKED_RETURN)
/src/libmgcp/mgcp_protocol.c: 983 in handle_modify_con()

Sponsored-by: On-Waves ehf
2014-01-17 14:36:51 +01:00
Andreas Eversberg caae10b71f Remove obsolete check of conn and lchan pointers not beeing NULL
The check is removed from gsm48_cc_rx_setup() and gsm48_cc_rx_call_conf().
Receiving a layer 3 message implies that the transaction has a subscriber
connection and a logical channel.

This patch fixes the Coverity issues with CID 115311 and CID 1155312.
2014-01-16 20:49:07 +01:00
Jacob Erlbeck 075a9ebdcc mgcp: Send RTP keepalive dummy packets to net
So far, a single dummy packet has been sent immediately after the
reception of a MDCX message. There is no dedicated keep alive
mechanism (it just worked because the audio from the MS has always
been forwarded to the NAT until the 'mgcp: Set output_enabled flags
based on the MGCP mode' patch).

This patch adds explicit, timer based keep alive handling that can be
enable per trunk. A VTY command 'rtp keep-alive' command is added for
configuration which can be used to set the interval in seconds, to
send a single packet after the reception of a CRCX/MDCX when RTP data
from the net is expected ('once'), or to disable the feature
completely ('no rtp keep-alive'). In 'send-recv' connections, only
the initial packet is sent if enabled (even when an interval has been
configured). The default is 'once'.

Note that this removes the mgcp_change_cb() from mgcp_main.c.

Sponsored-by: On-Waves ehf
2014-01-16 13:20:51 +01:00
Jacob Erlbeck 34bdc9f8fe mgcp/rtp: Send dummy packet to the RTCP destination, too
Currently a dummy packet is only sent to the RTP port. This is not
enough if RTCP must also cross the SNAT.

This patch sends an additional dummy packet to the RTCP net
destination if omit_rtcp is not set.

Sponsored-by: On-Waves ehf
2014-01-16 13:20:49 +01:00
Jacob Erlbeck 785e3c95d7 mgcp/rtp: Make offset computation understandable
Rename the timestamp variable to make in clear, that the input
timestamp is meant. Add a helper variable to illustrate the offset
computation.

Sponsored-by: On-Waves ehf
2014-01-16 13:20:47 +01:00
Jacob Erlbeck 2645c9e7fc mgcp: Set output_enabled flags based on the MGCP mode
This patch enhances parse_conn_mode() to set the output_enabled flags
of each end based on the MGCP mode.

Ticket: OW#1044
Sponsored-by: On-Waves ehf
2014-01-16 13:20:44 +01:00
Jacob Erlbeck 84dfba1579 mgcp/test: Show the number of dummy packets sent
This patch extends the test_messages test to show the number of dummy
packets that has been passed to sendto(). This way, dummy packets are
even being counted when sendto() itself failes (e.g. due to the fd
being -1).

Sponsored-by: On-Waves ehf
2014-01-16 13:20:37 +01:00
Jacob Erlbeck 68c74f59a4 mgcp/test: Reset pkt_period_* after each test
Currently these value may leak into the next test.

This patch will reset them after each message has been processed.

Sponsored-by: On-Waves ehf
2014-01-16 12:17:24 +01:00
Jacob Erlbeck 1b653af283 mgcp/test: Test the connection mode parser
This modifies the test MGCP messages to include M:recvonly (CRCX),
M:sendrecv (MDCX) and M:sendonly (MDCX) outputs the resulting
output_enabled flags and the conn_mode after processing the message.

Sponsored-by: On-Waves ehf
2014-01-16 12:17:24 +01:00
Jacob Erlbeck 0970bab2a3 mgcp/rtp: Add flag to disable RTP output
This patch make it possible to have a valid endpoint that drops all
outgoing RTP packets. The number of dropped packets is shown by the
VTY 'show mgcp' command. By default, this feature is disabled. To
enable packet dropping, the corresponding output_enabled field must
be set to 0.

Ticket: OW#1044
Sponsored-by: On-Waves ehf
2014-01-16 12:17:24 +01:00
Jacob Erlbeck b830008020 mgcp/rtp: Refactor mgcp_send to avoid code duplication
Currently there are two symmetric code paths which are selected by
the packet destination (NET or BTS).

This patch introduces 3 variables that take the different values
and unifies both code paths into one.

Sponsored-by: On-Waves ehf
2014-01-16 12:17:24 +01:00
Jacob Erlbeck 64277e6514 si: Implement range 128, 256, 1024 encoding
This commit adds the implementation of these range formats to the
encoder. In addition, the work-around that tried range 512 first is
removed, so that the selection is primarily based on the max distance
between frequencies.

Ticket: OW#1061
Sponsored-by: On-Waves ehf
2014-01-16 12:04:30 +01:00
Jacob Erlbeck f8f72e23ca si: Add generic range w(k) encoder
Currently the encoding of the chan_list is done by a hard-coded
sequence of macros that closely resembles figure 10.5.16 in
3GPP TS 04.08.

This patch replaces this by an algorithmic solution that can be used
for all range encodings and is based on the property

    W(2^i) to W(2^(i+1)-1) are on w1_len-i bits when present

(see section 10.5.2.13 in TS 04.08).

Ticket: OW#1061
Sponsored-by: On-Waves ehf
2014-01-16 12:04:30 +01:00
Jacob Erlbeck 45014a0cad si: Fix range1024 encoding
f0 is currently set to arfcns[0] in range_enc_determine_range(),
while GSM 04.08 requires f0 to be ARFCN 0 in range1024 encoding.

This patch modifies range_enc_determine_range() to force f0 to be 0
if this encoding is used. This way the case distinction in
range_enc_filter_arfcns() is not longer necessary.

Sponsored-by: On-Waves ehf
2014-01-16 12:04:30 +01:00
Jacob Erlbeck 131406c86d si: Fix range512 encoding
This patch fixes a bug in the range encoder that leads to wrong
encoding when 17 or more ARFCNs are encoded.

Sponsored-by: On-Waves ehf
2014-01-16 12:04:30 +01:00
Jacob Erlbeck 9444d4f8e2 si/test: Merge si tests into gsm48 tests
Currently tests covering features of the GSM 04.08 specification are
spread over the si and gsm0408 subdirs in tests.

This commit merges all tests from 'si' into 'gsm0408' and removes the
'si' test sub-directory.

Sponsored-by: On-Waves ehf
2014-01-16 12:04:30 +01:00
Jacob Erlbeck 4b903b4afb si/test: Add tests for range encoding/decoding
This commit adds test range encoding tests. They check the property
decoding(encoding(L)) = L and optionally dump the results and
encoded sequences to stdout.

There a 2 test modes:

 - A list of fixed tests
 - A random number based test loop per ARFCN list size (only dumps
   the first failing test)

Sponsored-by: On-Waves ehf
2014-01-16 12:04:29 +01:00
Jacob Erlbeck 65d114fe43 si: Add a config option to disable SI2ter/SI2bis/SI5ter/SI5bis messages
The iPhone5 (US) appears to have some issues with the SIs generated,
or the nanoBTS is not sending them correctly.

Add a configurable hack to put all bands into the SI2/SI5 message.
It is enabled by the bts VTY command 'force-combined-si'.

This is a quick change without much reflection and watching for side
effects. I have verfied that a network with ARFCN 134 and neighbors
ARFCN 130 and 512 do not get generate the SI2ter and announce everything
inside the SI2.

This patch is conceptually based on 'si: Add a hack to disable
SI2ter/SI2bis/SI5ter/SI5bis messages' (692daaf2d2).

Ticket: OW#1062
Sponsored-by: On-Waves ehf
2014-01-16 12:04:22 +01:00
Andreas Eversberg a83d511b61 Each BTS can be configured for speech support (other than GSM full rate)
Speech codings which are not supported by BTS will be removed from the
bearer capability information element after parsing. This way it is not
required for the MNCC application to consider support of each BTS.

Only GSM full rate is supported by default.
2014-01-14 17:37:02 +01:00
Andreas Eversberg 7d8fa3418f Add VTY option for Nokia BTS that does not send RELease CONFirm message
This option is a workarround for a bug found in Nokia InSite BTS firmware
version 3.0.0. There is no RELease CONFirm message for local end release.
Nokia MetroSite with firmware version 4.178.16 is not affected.

TS 04.06 Chapter 5.4.4.4 "Local end release procedure" states that a
confirm must be sent by layer 2 when receiving a local end release
request.

In order to correctly switch a channel (handover or assignment), local
end release is required.
2014-01-09 08:12:14 +01:00
Jacob Erlbeck f46e226428 nitb: Set the DST field in generated MM info messages
Currently the NET_DST information element (see GSM 24.008) is not
included in generated MM info messages even when the DST field in the
timezone info has been set via the VTY or the control interface.

This patch modifies gsm48_tx_mm_info() to append this information
element if (and only if) a non-zero DST has been configured. The
DST IE is not part of GSM 4.8. Therefore it will only be sent, if the
DST offset is configured to a value != 0.

The DST functionality has been verified with wireshark by Jacob.

Sponsored-by: On-Waves ehf
2014-01-08 10:49:26 +01:00
Holger Hans Peter Freyther 095bd36627 smpp: In case we know the receiver set the context for logging 2013-12-29 20:30:02 +01:00
Holger Hans Peter Freyther 249b3f38c5 mncc: Add the context we get from the MNCC interface
Currently we only set the SUBSCR on RSL messages. Extend it to
messages that go through MNCC. For call control/bridging it is
difficult to pick the right subscriber. We should support a list
or at least two legs in the imsi filter context.
2013-12-29 20:24:37 +01:00
Tobias Engel ea730327d1 ussd: Reject and release unhandled SS requests/interrogation
In case the unpack of a USSD request is failing the channel would
remain open and the phone would not receive a response. Simply
reject the interrogation.

Example interrogation:
0000   1b 7b 1c 0d a1 0b 02 01 01 02 01 0e 30 03 04 01
0010   11 7f 01 00
2013-12-28 17:52:23 +01:00
Holger Hans Peter Freyther f76ed2d089 sms: Fix crash on RLL Establish Request timeouts with active call
Sylvain pointed out that in the current crash log the transaction
we try to read the SMS from is actually a transaction for Call
Control. On AMD64 the struct layout is different and that leads to
a crash when the CC transaction is in front of the SMS transaction.

Look at the trans->protocol to fix the crash. The issue got
introduced in 6a3d765bf9 (2010)
when I added the SAPI N Reject handling.

 #0  smpp_sms_cb (subsys=1, signal=4, handler_data=0xbb8270, signal_data=0x7fff33574ea0)
     at smpp_openbsc.c:284
 284		if (sms->source != SMS_SOURCE_SMPP)
 (gdb) bt
 #0  smpp_sms_cb (subsys=1, signal=4, handler_data=0xbb8270, signal_data=0x7fff33574ea0)
     at smpp_openbsc.c:284
 #1  0x00007f424e4a094c in osmo_signal_dispatch (subsys=1, signal=4,
     signal_data=0x7fff33574ea0) at signal.c:105
 #2  0x000000000042b070 in send_signal (sig_no=<optimized out>, trans=<optimized out>,
     sms=<optimized out>, paging_result=<optimized out>) at gsm_04_11.c:125
 #3  0x000000000042ccd2 in gsm411_sapi_n_reject (conn=0xec6790) at gsm_04_11.c:1000
 #4  0x0000000000408983 in send_sapi_reject (link_id=<optimized out>, conn=<optimized out>)
     at bsc_api.c:733
 #5  rll_ind_cb (_data=<optimized out>, lchan=<optimized out>, link_id=<optimized out>,
     rllr_ind=<optimized out>) at bsc_api.c:755
 #6  rll_ind_cb (lchan=<optimized out>, link_id=<optimized out>, _data=<optimized out>,
     rllr_ind=<optimized out>) at bsc_api.c:736
 #7  0x000000000041f8d2 in complete_rllr (rllr=<optimized out>, type=<optimized out>)
     at bsc_rll.c:55
 #8  0x00007f424e4a03bc in osmo_timers_update () at timer.c:243
 #9  0x00007f424e4a069b in osmo_select_main (polling=0) at select.c:133
 #10 0x0000000000407394 in main (argc=<optimized out>, argv=0x7fff33575238) at bsc_hack.c:346
 (gdb) frame 3
 #3  0x000000000042ccd2 in gsm411_sapi_n_reject (conn=0xec6790) at gsm_04_11.c:1000
 1000				send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0);
 (gdb) p trans
 $1 = (struct gsm_trans *) 0xedba80
 (gdb) p *trans
  ....
          data = 0x1}}, sms = 0x3439323400000003}}}
 (gdb) p trans->protocol
 $4 = 3 '\003'
2013-12-27 22:57:56 +01:00
Holger Hans Peter Freyther 900394acf3 db: Avoid crash we have seen with the dbi code when reading a SMS
Avoid a crash when reading a SMS and a Subscriber could not be resolved.
It is not clear why the read was failing. The sender_id and the receiver_id
was valid for the given sms. I assume that the database has been locked
due external access to it.

The side-effect is that in case of such a failure the sms_queue will start
to deliver starting from subscriber id = 0 again.

 #1  0x0000000000428bec in sms_from_result (net=0x156a270, result=0x15eda30) at db.c:1146
 #2  0x000000000042a8e0 in db_sms_get_unsent_by_subscr (net=0x156a270,
     min_subscr_id=<optimized out>, failed=<optimized out>) at db.c:1255
 #3  0x000000000042e900 in take_next_sms (smsq=<optimized out>) at sms_queue.c:193
 #4  sms_submit_pending (_data=0x158e300) at sms_queue.c:227
 #5  0x00007f3fd30de3bc in osmo_timers_update () at timer.c:243
 #6  0x00007f3fd30de69b in osmo_select_main (polling=0) at select.c:133
 #7  0x0000000000406fbc in main (argc=9, argv=<optimized out>) at bsc_hack.c:346
 (gdb) frame 1
 #1  0x0000000000428bec in sms_from_result (net=0x156a270, result=0x15eda30) at db.c:1146
 1146		strncpy(sms->src.addr, sms->sender->extension, sizeof(sms->src.addr)-1);
 (gdb) p *sms
 (gdb) p sms->sender
 $1 = (struct gsm_subscriber *) 0x0
 (gdb) p sender_id
 $2 = <optimized out>
2013-12-27 20:20:55 +01:00
Holger Hans Peter Freyther b1d71d4267 bsc: Reduce the RLL timeout to be smaller than TC1/max_retr+1
Sylvain pointed out that the RLL and the SMC timeout is the same.
This can lead to have a SMC re-transmission before the first RLL
Establish Request has timed out. Reduce the RLL timeout. GSM 08.58
does not specify a timeout so right now I just reduce it to seven
seconds.
2013-12-27 19:21:58 +01:00
Holger Hans Peter Freyther 8effcb747d libmsc: Set the "trans->conn" to NULL to catch invalid usage
Make finding use-after-free more easy and set it to NULL.
2013-12-27 18:07:23 +01:00
Holger Hans Peter Freyther 1a345ca48f lu crash: Fix a crash that likely occurred during the LU procedure
conn->loc_operation is already NULL (e.g. due a five second timeout but
we are still processing a RSL message after we initiated the release
procedure). Do not attempt to authorize a subcriber without knowing the
key_sequence.

This can cause more problems but we will need to test this in the field.

(gdb) bt
 #0  gsm0408_authorize (conn=0x19fc2f0, msg=<optimized out>) at gsm_04_08.c:323
 #1  gsm0408_authorize (conn=0x19fc2f0, msg=<optimized out>) at gsm_04_08.c:319
 #2  0x000000000043a99a in mm_rx_id_resp (conn=0x19fc2f0, msg=<optimized out>)
     at gsm_04_08.c:495
 #3  gsm0408_rcv_mm (msg=<optimized out>, conn=0x19fc2f0) at gsm_04_08.c:1041
 #4  gsm0408_dispatch (conn=0x19fc2f0, msg=<optimized out>) at gsm_04_08.c:3232

(gdb) p *conn
 $5 = {entry = {next = 0x1746930, prev = 0x1a14270}, subscr = 0x1745eb0,
  expire_timer_stopped = 1 '\001', loc_operation = 0x0, sec_operation = 0x0,
  anch_operation = 0x0, silent_call = 0, put_channel = 0, sccp_con = 0x0, in_release = 0,
  lchan = 0x7f8c79007218, ho_lchan = 0x0, bts = 0x1719f90, T10 = {node = {
      rb_parent_color = 0, rb_right = 0x0, rb_left = 0x0}, list = {next = 0x0, prev = 0x0},
    timeout = {tv_sec = 0, tv_usec = 0}, active = 0, cb = 0, data = 0x0},
  secondary_lchan = 0x0}
2013-12-27 17:37:27 +01:00
Holger Hans Peter Freyther 2147bc4cc9 periodic/lu: Attempt to implicitly attach a subscriber instead of rejecting
When modern Smartphones receive "Not in VLR". The baseband firmware
apparently does not try to do an IMSI ATTACH but just remains un-happy
and will not connect to the network anymore.
2013-12-27 17:22:32 +01:00
Holger Hans Peter Freyther defb10fa62 Revert "gsm_04_11: Speculative fix for MT SMS and SAPI 'n Reject"
Let's revert it and see if we can find the real issue about the
sms being invalid. Sylvain has pointed out that we get invoked
from a timer and might not have stopped it properly.

This reverts commit 80ba9b5dd6.
2013-12-27 16:32:59 +01:00
Holger Hans Peter Freyther 80ba9b5dd6 gsm_04_11: Speculative fix for MT SMS and SAPI 'n Reject
I am not sure why it is crashing so this is a speculative fix based on
something we already did in 3e9b2ec257.

 #0  sms_find_pending (smsq=0x2706300, sms=<optimized out>) at sms_queue.c:77
 #1  sms_sms_cb (subsys=<optimized out>, signal=4, handler_data=0x26e2270,
     signal_data=0x7fffdac256c0) at sms_queue.c:396
 #2  0x00007fcdea94394c in osmo_signal_dispatch (subsys=1, signal=4,
     signal_data=0x7fffdac256c0) at signal.c:105
 #3  0x000000000042acc0 in send_signal (sig_no=<optimized out>, trans=<optimized out>,
     sms=<optimized out>, paging_result=<optimized out>) at gsm_04_11.c:124
 #4  0x000000000042c8e2 in gsm411_sapi_n_reject (conn=0x2722d30) at gsm_04_11.c:999
 #5  0x00000000004085d3 in send_sapi_reject (link_id=<optimized out>, conn=<optimized out>)
     at bsc_api.c:733
 #6  rll_ind_cb (_data=<optimized out>, lchan=<optimized out>, link_id=<optimized out>,
     rllr_ind=<optimized out>) at bsc_api.c:755
 #7  rll_ind_cb (lchan=<optimized out>, link_id=<optimized out>, _data=<optimized out>,
     rllr_ind=<optimized out>) at bsc_api.c:736
 #8  0x000000000041f522 in complete_rllr (rllr=<optimized out>, type=<optimized out>)
     at bsc_rll.c:55
 #9  0x00007fcdea9433bc in osmo_timers_update () at timer.c:243
 #10 0x00007fcdea94369b in osmo_select_main (polling=0) at select.c:133
 #11 0x0000000000406fbc in main (argc=9, argv=<optimized out>) at bsc_hack.c:346
2013-12-27 15:26:42 +01:00
Holger Hans Peter Freyther 91acfa0720 sms: Move to gsm_7bit_encode_n in the sms sending code
Do not rely on the potential wrong gsm_7bit_encode result but
use gsm_7bit_encode_n with maximum available space.
2013-12-26 22:33:02 +01:00
Holger Hans Peter Freyther 1f229b344e ussd: Move to use gsm_7bit_encode_n_ussd for USSD encoding
The legacy functions have a bad/wrong return value for the number
of septets in the string. Change the code to use the new functions
which will fix encoding issues as well.
2013-12-26 22:17:45 +01:00
Kevin Redon c9763a3de4 db: Fetch the authorized key using ulonglong
Location Update Requests time out and get rejected because the
subscriber is not authorized. Authorizing the subscriber through
openBSC or sqlite3 doesn't help the subscriber is still seen and
shown as not authorized

The value is read as uint, this is the wrong type it's a (u)longlong
in libdbi 0.9.0 and later.
2013-12-26 16:02:03 +01:00
Jacob Erlbeck 4bbddc6de9 mgcp/rtp: Only patch timestamp alignment errors
Currently, all timestamps are force to SeqNo*d + C which is more than
required by the nanoBTS which seems to be sensitive to alignment
errors only (dTS != k*d, d = ptime * rate = 160).

This patch replaces the force_constant_timing feature by a
force_aligned_timing feature. The timestamp offset will only be
changed (and timestamp errors counted) when the alignment does not
match to the raster based on ptime (default 20ms).

The VTY interface does not change.

Sponsored-by: On-Waves ehf
2013-12-19 11:56:11 +01:00
Jacob Erlbeck 65c7a4551a mgcp/test: Use differential output for counters and timestamp
Currently the counter and output timestamp values are written out for
each packet. This makes it difficult to see in the diffs what has
been changed significantly.

This patch changes this by showing differences for those
values. The absolute input values are also shown now. In addition,
the sequence numbers (the difference for the output value) are
written, too.

Sponsored-by: On-Waves ehf
2013-12-19 11:56:11 +01:00
Jacob Erlbeck 93c9da3b37 mgcp/test: Add test cases for constant RTP sequence number
This adds two test cases:
  1. Packet repetition (dSeq=0, dTS=0)
  2. Broken seqNo (dSeq=0, dTS=160)

The second had been already present in the test cases, but it was a
mere copy&paste mistake which turned out to be rather helpful. This
patch therefore turns it into a documented test case.

Sponsored-by: On-Waves ehf
2013-12-19 11:56:11 +01:00
Andreas Eversberg d074f8f396 Add EFR support to TRAU muxer + test case
Decoding and encoding of FR and EFR TRAU frames are put into seperate
functions. CRC check is done to detect bad EFR TRAU frames.

The test case includes FR and EFR transcoding.

EFR support was tested with Nokia InSite BTS and Siemens BS11.
2013-12-19 10:12:28 +01:00
Andreas Eversberg b6f9516193 Fix: Nokia requires VTY's "oml e1" parameters also
When writing config file, OML configuration must be written for all
E1 based BTS, which includes Nokia *Site BTS.
2013-12-18 16:23:39 +01:00
Jacob Erlbeck eddaa9f19e contrib/rtp: Fix default payload case
There is the wrong record field selection being used to extract the
default value. It returns the tuple offset instead of the value.

This patch fixes this.

Sponsored-by: On-Waves ehf
2013-12-18 16:16:42 +01:00
Jacob Erlbeck 0a1bc56e5a mgcp: Optionally send ptime in SDP
Currently the SDP 'ptime' media attribute is never set in generated
MGCP responses.

This patch optionally includes the 'ptime' attribute if
packet_duration_ms is != 0. This behaviour can be enabled/disabled
by using the VTY command "sdp audio-payload send-ptime" (enabled by
default).

Sponsored-by: On-Waves ehf
2013-12-13 13:51:29 +01:00
Jacob Erlbeck 24754f0490 mgcp: Parse SDP to get rate and packet duration
This patch parses the 'ptime' and 'maxptime' SDP attributes, and the
SDP rate information and sets up packet_duration_ms accordingly. If
the packet duration is unknown or allows for different values (e.g.
because 'ptime' uses a range or 'maxptime' allows for more than one
frame) the duration is set to 0.

Sponsored-by: On-Waves ehf
2013-12-13 13:49:32 +01:00
Jacob Erlbeck 2c2ca4df38 mgcp: Put local connection options into a struct
Currently the local connection options have been stored as a string.

This patch replaces this string by a struct (that still contains a
string) along with the parsed fields (only the packetization period
at the moment).

It also re-adds the calls to set_local_cx_options() to the
handle_create_con() and handle_modify_con() functions. Except for
the test program this has no side effects, since the LCO values
aren't used yet.
2013-12-13 13:48:04 +01:00
Jacob Erlbeck ba477d2ba3 mgcp/test: Output the packet duration after MGCP parsing
This also adds additional MDCX tests (based on MDCX4) to test the
analysis of different combinations of 'p' and 'ptime' fields.

Sponsored-by: On-Waves ehf
2013-12-13 13:45:19 +01:00
Jacob Erlbeck 33f300915a mgcp/rtp: Refactor timestamp offset calculation into own function
Currently the timestamp offset calculation is done in two different
places.

This patch moves and unifies both code parts into a separate function.

Sponsored-by: On-Waves ehf
2013-12-13 13:45:19 +01:00
Jacob Erlbeck e8ae1ac76a contrib/rtp: Add tool to create RTP state files
This tool provides the following features:
  - Output formats: state, C arrays
  - Optionally take RTP payload from existing state files
  - Generate streams with RTP timestamp jumps and/or delays
  - Set/change SSRC or payload type

Requires erlang to be installed.

Example:
  Generate 300 packets, set playout time offset to 1s, set
  RTP timestamp offset to 8000 (1s), generate another 100
  packets, the RTP payload is copied from rtp.state:

  ./gen_rtp_header.erl --type=98 --file=rtp.state  --
      0 300 0 --delay=1.0 100 8000

Sponsored-by: On-Waves ehf
2013-12-13 13:40:11 +01:00
Jacob Erlbeck 8b66649883 contrib/rtp: Enhance RTP replay tool
This patch adds optional parameters to pass the state file, the
destination address (default 127.0.0.1), the destination port
(default 4000), the source port (default 0). So it is called as
follows:

    gst rtp_replay.st -a [FILE [HOST [SOURCEPORT [DESTPORT]]]]

In addition, nonexistant FILEs are no longer created but opened
read-only instead.

Sponsored-by: On-Waves ehf
2013-12-13 13:40:09 +01:00
Holger Hans Peter Freyther e828b661a7 build: db_test does not use dlopen/dlsym.. remove LIBRARY_DL from deps 2013-12-13 10:18:33 +01:00
Holger Hans Peter Freyther a066d38fbf build: channel_test does not use dlopen/dlsym remove LIBRARY_DL dep 2013-12-13 10:18:32 +01:00
Holger Hans Peter Freyther fd465bcdf1 build: osmo-nitb does not use dlopen/dlsym remove LIBRARY_DL
osmo-nitb does not use dlopen/dlsym so we can remove the depedency
to LIBRARY_DL.
2013-12-13 10:18:32 +01:00
Holger Hans Peter Freyther 5b0e8706e8 build: Remove bogus depends from ipaccess-config
The code does not use libmsc and doesn't use dlsym/dlopen etc. So
let us remove LIBRARY_DL as dependency.
2013-12-13 10:18:32 +01:00
Nikola 876b55af33 freebsd: dlopen/dlsym/dlerror is part of libc, use LIBRARY_DL for linking
In FreeBSD there is no spearate library for dlopen, dlsym and dlerror.
Use LIBRARY_DL to check for this condition.
2013-12-13 10:18:19 +01:00
Holger Hans Peter Freyther 27a788ddb9 si: Make sure to not overwrite orig_arfcn_hi in the range encoding
Andreas highlighted that the doubel assignment is not needed and
wrong. Change the code to assign chan_list[0] before writing the
base frequency to the header. Update the testcase to make the highest
bit set and update the test result.
2013-12-12 17:00:57 +01:00
Holger Hans Peter Freyther e18209c975 ipa-proxy: Socket creation can fail, address coverity issue
Fixes: Coverity CID 1040722
2013-12-12 16:20:19 +01:00
Holger Hans Peter Freyther 7f180e83c3 vty: Address coverity issue with subscr->name never being NULL
Coverity points out that subscr->name is an array and never NULL.
Use strlen instead in this check.

Fixes: Coverity CID 1040717
2013-12-12 16:20:12 +01:00
Holger Hans Peter Freyther a5ddf489e1 subscriber: Address coverity warning and truncate the IMSI
The IMSI can only be 15 characters in length, our define gives
us a length of 17. This means we have place for two NULs. Use
strncpy and make sure it is null-terminated.

Fixes: Coverity CID 1040707
2013-12-12 16:20:07 +01:00
Holger Hans Peter Freyther 7672db33bd smpp_mirror: Initialize rc when cmd_id is not DELIVER_SM
Fixes: Coverity CID 1042369
2013-12-12 16:20:01 +01:00
Holger Hans Peter Freyther 109583dacb build: Ignore file generated by automake 2013-12-12 13:08:48 +01:00
Holger Hans Peter Freyther a80100644c mgcp: Address compiler error for sprintf misusage...
The hardening flags of debian have highlighted this sprintf mis-usage
in the testcase. Address it.
2013-12-12 13:08:26 +01:00
Jacob Erlbeck f6ec0e9fc4 mgcp/rtp: Refactored packet_duration computation
Since the packet duration is given in ms with the 'ptime' RTP media
attribute and also with the 'p' MGCP local connection option, the
computation is changed to use this value (if present). The
computation assumes, that there are N complete frames in a packet and
takes into account, that the ptime value possibly had been rounded
towards the next ms value (which is never the case with a frame length
of exact 20ms).

Sponsored-by: On-Waves ehf
2013-12-10 11:17:44 +01:00
Jacob Erlbeck 58340e5b5b mgcp/rtp: Fix RTP timestamps if enabled
This forces the output timing to fulfill
   dTS = dSegNo * fixedPacketDuration
where dSegNo = seqNo - lastSeqNo.

If timestamp patching is enabled, the output timestamp will be set
to lastTimestamp + dTS. This kind of relative updating is used to
handle seqNo- and timestamp-wraparounds properly.

The updating of timestamp and SSRC has been separated and the patch
field of mgcp_rtp_state has been renamed to patch_ssrc to reflect
it's semantics more closely. The offset fields are now used always
and will change the corresponding header field if they are != 0.

Ticket: OW#1065
Sponsored-by: On-Waves ehf
2013-12-10 11:17:44 +01:00
Jacob Erlbeck e2292f3aa1 mgcp/rtp: Only patch SSRC once after MDCX if enabled
Currently the output SSRC is always forced to be the same if SSRC
patching is enabled.

This patch modifies this to optionally restrict the number of SSRC
changes that will be corrected.

Note that the configuration only allows for the 'once' mode and 'off'.

Sponsored-by: On-Waves ehf
2013-12-10 11:17:42 +01:00
Jacob Erlbeck 3da9e4e441 mgcp/rtp: Use SSRC in proper byte ordering
The ssrc has been used without respect to proper byte ordering in
mgcp_patch_and_count(). This only affected log messages.

This patch introduces a new variable 'ssrc' that takes the value of
the SSRC in proper byte order.

Sponsored-by: On-Waves ehf
2013-12-10 11:13:22 +01:00
Jacob Erlbeck 30ce42250f mgcp/rtp: Compute default packet duration at state initialisiation
This patch adds a packet_duration field to mgcp_rtp_state which
contains the RTP packet's duration in RTP timestamp units or 0, when
the duration is unknown or not fixed.

Sponsored-by: On-Waves ehf
2013-12-10 11:13:22 +01:00
Jacob Erlbeck b35a77751b mgcp/rtp: Only update RTP header field offsets if enabled
Currently seq_offset and timestamp_offset are updated on each SSRC
change even when SSRC patching is not allowed.

This patch fixes this by changing mgcp_patch_and_count() to only
update these fields when SSRC patching is allowed.

Sponsored-by: On-Waves ehf
2013-12-10 11:13:22 +01:00
Jacob Erlbeck 5e9549e6a9 mgcp/rtp: Change the log message shown when the SSRC changes
Show old and new SSRC. Move logging command upward to show the values
immediately after the change has been detected and before any fixing
attempt is made.

Sponsored-by: On-Waves ehf
2013-12-10 11:13:22 +01:00
Jacob Erlbeck db2d431697 mgcp/rtp: Add RTP header patch mode configuration
This adds datastructures and a VTY frontend to configure the
different type of RTP header patching: SSRC and timestamp.

Note that timestamp patching is not yet implemented.

Sponsored-by: On-Waves ehf
2013-12-10 11:11:42 +01:00
Jacob Erlbeck 55ba140da1 mgcp/rtp: Fix output timing error counter
The tsdelta computation and error detection didn't handle the
intialisation phase properly.

This patches fixes this by skipping the output timing validation
when the SSRCs don't match.

Sponsored-by: On-Waves ehf
2013-12-05 16:55:39 +01:00
Jacob Erlbeck 83c0523739 mgcp/rtp: Add more test cases for RTP header patching
This patch extends the existing RTP error check test by adding a
check for timestamp errors after SSRC changes and a check for a
segno delta of 2 (with a timestamp delta of 320).

To test SSRC patching too, a corresponding line will be written on
each SSRC change that has been detected in the output stream.

In addition there is now support for selectively enabling/disabling
SSRC and timestamp patching. The RTP test sequence is repeated for
all combinations thereof.

Sponsored-by: On-Waves ehf
2013-12-05 16:54:25 +01:00
Jacob Erlbeck 78a9501cfd mgcp: Handle SDP in CRCX received by the MGW
So far the SDP part of the CRCX message has been ignored by the MGW.

This patch adds SDP parsing for this case, eventually updating the
net end's payload type and connection parameters.

Sponsored-by: On-Waves ehf
2013-12-05 10:28:51 +01:00
Jacob Erlbeck 3dff27d38d mgcp/nat: Take payload type from SDP data
So far the payload type used in RTP streams has been taken from the
trunk configuration in NAT mode.

This patch changes the implementation to use the payload type
announced in the SDP part of MGCP messages and responses. SDP
descriptions more than one m=audio line are not yet supported
properly (always the last one is taken).

Ticket: OW#466
Sponsored-by: On-Waves ehf
2013-12-05 10:28:48 +01:00
Jacob Erlbeck 9107e2da13 mgcp: NUL-terminate MGCP message
The MGCP message isn't always NUL-terminated when arriving at
mgcp_handle_message(). This may lead to undefined results.

This patch ensures that the message text is NUL-terminated by
setting *msg->tail to '\0' in mgcp_handle_message().

Addresses:
<000b> mgcp_protocol.c:642 Unhandled option: 'r'/114 on 0x3
<000b> mgcp_protocol.c:593 Unhandled SDP option: '='/61 on 0x3
<000b> mgcp_protocol.c:871 Unhandled option: '.'/46 on 0x2

Sponsored-by: On-Waves ehf
2013-12-05 10:28:23 +01:00
Jacob Erlbeck 1771171e05 mgcp: Refactor MGCP/SDP parsing
This patch separates the SDP parsing from the (message specific) MGCP
parsing.

Sponsored-by: On-Waves ehf
2013-12-05 10:27:33 +01:00
Jacob Erlbeck a52ac66e52 mgcp: Add tests for payload types in MGCP messages
These tests mainly check whether the SDP parsing works properly by
looking at the payload type detected.

Sponsored-by: On-Waves ehf
2013-12-05 10:27:32 +01:00
Jacob Erlbeck 2bee7f96ff mgcp: Add new for_each_line macro that also returns empty lines
This patch add the for_each_line macro based on a strline_r()
function (similar to strtok_r()), that is also part of this patch.
This strline_r() function is tolerant with respect to line endings,
it supports CR-only, CRLF, and LF-only and any combinations thereof
(note that a CRLF is always detected as a single line break).

Similar to for_each_non_empty_line (the former for_each_line) where
the 'save' pointer needed to be initialised by a call to strtok_r(),
the new for_each_line macro expects, that the 'save' pointer has been
initialised by a call to strline_r(). Also note, that
for_each_line/strline_r and for_each_non_empty_line/strtok_r may use
the 'save' pointer differently, so calls to them can not be mixed.

Sponsored-by: On-Waves ehf
2013-12-05 10:27:32 +01:00
Jacob Erlbeck a01bd60851 mgcp: Rename for_each_line to for_each_non_empty_line
The implementation of for_each_line is based on strtok() and skips
any sequence of CR and LF. Thus empty lines are never detected. There
exists code which tests for an empty line to detect the beginning of
the SDP part which is dead code currently (the parser works
nevertheless due to other reasons). So the semantics of this macro
have been misunderstood at least once.

This patch renames the macro to reflect the semantics more precisely.

Sponsored-by: On-Waves ehf
2013-12-05 10:27:32 +01:00
Harald Welte 19d8742820 osmo-nitb: don't print 'bac_hack' in usage/help output 2013-11-27 01:28:21 +01:00
Jacob Erlbeck 72c309021a mgcp/rtp: Fix timestamp offset when patching RTP packets
The current implementation increments the seqno but does not increment
the RTP timestamp, leading to two identical timestamps following one
after the other.

This patch fixes this by adding the computed tsdelta when the offset
is calulated. In the unlikely case, that a tsdelta hasn't been
computed yet when the SSRC changes, a tsdelta is computed based on
the RTP rate and a RTP packet duration of 20ms (one speech frame per
channel and packet). If the RTP rate is not known, a rate of 8000 is
assumed.

Note that this approach presumes, that the per RTP packet duration
(in samples) is the same for the last two packets of the stream being
replaced (the first one).

Sponsored-by: On-Waves ehf
2013-11-25 18:30:50 +01:00
Jacob Erlbeck d62419b574 mgcp/rtp: Add test case for RTP timestamp patching and stats
This patch adds a test case to check, whether RTP timestamps are
generated properly after SSRC changes and whether the error counters
work properly.

Sponsored-by: On-Waves ehf
2013-11-25 18:13:35 +01:00
Jacob Erlbeck 50079a1843 mgcp/rtp: Add counter for invalid RTP timestamp deltas
This patch modifies the patch_and_count() function to check for RTP
timestamp inconsistencies. It basically checks, whether dTS/dSeqNo
remains constant. If this fails, the corresponding counter is
incremented. There are four counter for this: Incoming and outgoing,
each for streams from the BTS and the net.

Note that this approach presumes, that the per RTP packet duration
(in samples) remains the same throughout the entire stream. Changing
the number of speech frames per channel and packet will be detected
as error.

In addition, the VTY command 'show mgcp' is extended by an optional
'stats' to show the counter values, too.

Ticket: OW#964
Sponsored-by: On-Waves ehf
2013-11-25 18:07:21 +01:00
Holger Hans Peter Freyther ec37bb2956 bsc: Add a VTY command to show the paging group for a BSC/IMSI 2013-11-22 16:00:00 +01:00
Jacob Erlbeck d9e4039516 rtp: Fixed size check in padded RTP packets
This patch fixes a corner case (padding 1, payload size incl padding
0) which is not being detected correctly.

Sponsored-by: On-Waves ehf
2013-11-21 20:00:55 +01:00
Holger Hans Peter Freyther 33b9641025 bsc: Use the right string for the notification 2013-11-15 16:47:59 +01:00
Holger Hans Peter Freyther 92ce02e644 rtp: Take the parameter from the arguments
$ gst rtp_replay.st -a FILE
2013-11-14 09:45:51 +01:00
Holger Hans Peter Freyther 558bdb4330 ipa: Explain that one needs to get the IP address of the BTS as argument 2013-11-11 14:30:09 +01:00
Holger Hans Peter Freyther 49976f4c1e shared: Introduce/Add procedure pending to the MO
GSM 12.21 specifies that "No elementary procedure shall be
initiated to an object instance which has not yet replied to
a previously initiated elementary procedure with a response,
an ACK or a NACK within a layer 3 time-out. The layer 3
timeout for ACK, NACK and responses shall have a default value
of 10 seconds."

We are using this flag in the BTS to enforce/safe-guard
this situation.
2013-11-05 16:06:17 +01:00
Holger Hans Peter Freyther 82e644b572 gbproxy: The "[stats]" option was not documented, document it
Documentation error (missing docs):
<command id='show gbproxy [stats]'>
        <param name='[stats]' doc='(null)' />
2013-11-03 17:34:17 +01:00
Jacob Erlbeck aff2d62b8c bsc/ussd: Rename bsc_send_ussd_notification()
Rename this function to bsc_send_ussd_no_srv() since it's a rather
specialised function and not a generic USSD notification function.

Sponsored-by: On-Waves ehf
2013-11-01 17:12:41 +01:00
Jacob Erlbeck b1250312ba bsc/ussd: Send faked CM Service Accept before sending USSD
The MS do not show the USSD messages yet. This patch modifies the
implementation to insert a CM Service Accept to finish the
establishment of the MM connection according to 3GPP TS 04.10/3.2.1
before the USSD notification is sent.

This fix has been tested with a Blackberry phone that has shown
an ussd_grace_txt after rf_locked has been set to '1'. Without this
patch, that message wasn't shown. The phone has sent a CC Setup
and other messages before processing the channel release message sent
by the BSC, but these messages have not been forwarded to the MSC (as
expected).

Ticket: OW#957
Sponsored-by: On-Waves ehf
2013-11-01 17:12:39 +01:00
Jacob Erlbeck 24d3b91d46 bsc: Move gsm48_tx_mm_serv_ack/rej to gsm_04_08_utils.c
These functions are currently located in libmsc/gsm_04_08.c together
with other symbols that (transitively) depend on many external
symbols (and thus libraries) that aren't otherwise needed by e.g.
osmo-bsc.

Since gsm48_tx_mm_serv_ack() will be needed by osmo-bsc, these
functions are moved to avoid the dependency on gsm_04_08.o.

Sponsored-by: On-Waves ehf
2013-11-01 17:12:37 +01:00
Holger Hans Peter Freyther 28e183f385 Revert "bsc/ussd: Send faked CM Service Accept before sending USSD"
This reverts commit 61bd965b04.

No, we should not link to dbi.. and these libraries..
2013-10-31 13:35:28 +01:00
Jacob Erlbeck 61bd965b04 bsc/ussd: Send faked CM Service Accept before sending USSD
The MS do not show the USSD messages yet. This patch modifies the
implementation to insert a CM Service Accept before the ussdNotify
to finish the establishment of the MM connection according to
3GPP TS 04.10/3.2.1.

This fix has been tested with a Blackberry phone that has shown
an ussd_grace_txt after rf_locked has been set to '1'. Without this
patch, that message wasn't shown. The phone has sent a CC Setup
and other messages before processing the channel release message sent
by the BSC, but these messages have not been forwarded to the MSC (as
expected).

Ticket: OW#957
Sponsored-by: On-Waves ehf
2013-10-31 13:29:51 +01:00
Jacob Erlbeck 6e919dbb65 vty: Enable the end/exit test for libosmocore nodes
This patch replaces the calls to ignoredCheckForEndAndExit by calls
to checkForEndAndExit to test the libosmocore nodes, too. The former
method is removed.

Sponsored-by: On-Waves ehf
2013-10-30 15:19:02 +01:00
Jacob Erlbeck 36722e13da vty: Use vty_install_default() instead of bsc_install_default()
Remove ournode_exit_cmd, ournode_end_cmd, and bsc_install_default()
since this functionality is provided by the current libosmocore.

Replace calls to bsc_install_default() by call to
vty_install_default() with the following semantic patch:

    @rule1@
    expression N;
    @@
    - bsc_install_default(N);
    + vty_install_default(N);

Ticket: OW#952
Sponsored-by: On-Waves ehf
2013-10-30 15:19:00 +01:00
Holger Hans Peter Freyther fc7a75f5df bts: Add a flag to remember the kind of activation/release
When the PCU is activating a channel we don't want to tell the
BSC using RSL. Add a flag so we can keep track of who asked for
the activation/release of the channel.
2013-10-25 18:58:30 +02:00
Jacob Erlbeck 64cb924634 gbproxy: Fix handling of NSEI changes
The gbproxy looses NSEI changes on BVC_RESET and then tries to send
later messages to the wrong (not longer existing) destination.

This patch fixes this by updating the peer's nsei field on BVC_RESET.

Ticket: OW#874
Sponsored-by: On-Waves ehf
2013-10-24 18:02:38 +02:00
Jacob Erlbeck 72b401f33d gbproxy: Add test for NSEI and NSVCI changes
This checks the behavior of the gbproxy when the BSS peer changes the
NSEI and the NSVCI. It also tests BVC_RESET and other UNITDATA
messages after these changes between BSS and SGSN and vice versa (via
the gbproxy).

Ticket: OW#874
Sponsored-by: On-Waves ehf
2013-10-24 18:02:36 +02:00
Jacob Erlbeck 4211d79cd1 gbproxy/vty: Enhance delete-gbproxy-peer command
This adds the option to delete all BVC peers and/or NS_VC with a
given NSEI with a single command. Static (configured) NS-VC are not
affected. In addition, all connections for this NSEI that can be
deleted by this command can be listed without deleting them by
appending 'dry-run' to the command.

Sponsored-by: On-Waves ehf
2013-10-24 18:02:33 +02:00
Holger Hans Peter Freyther 90267a961c gbproxy: Add a command to delete peers from the GBProxy
This just deletes the peer entry based on NSEI and BVCI. The NS-VC
are not touched.
2013-10-24 08:22:45 +02:00
Jacob Erlbeck 02ca7783ab gbproxy: Fix rate counter group leak in peer_free()
This also frees the counter group pointed to by peer->ctrg when the
peer gets freed.

Sponsored-by: On-Waves ehf
2013-10-24 08:22:45 +02:00
Jacob Erlbeck 6d23371805 gbproxy: Add basic VTY tests
This checks for the ns and gbproxy config nodes and show commands.

Sponsored-by: On-Waves ehf
2013-10-24 08:21:29 +02:00
Jacob Erlbeck 7587727445 vty: Fix whitespace in test script
Expands leading tabs and removes trailing whitespace.

Sponsored-by: On-Waves ehf
2013-10-24 08:21:22 +02:00
Jacob Erlbeck f0f63a4113 gbproxy: Reject SGSN UNITDATA messages with an invalid BVCI
Currently such messages lead to a creation of a new peer with the
SGSN's NSEI, which results in echoing the message back to the SGSN.

This patch modifies this by sending a STATUS response (invalid BVCI)
instead back to the SGSN.

Sponsored-by: On-Waves ehf
2013-10-19 12:10:24 +02:00
Jacob Erlbeck da890c7733 gbproxy: Test invalid BVCI from SGSN
This adds a test with a UNITDATA SGSN message that is addressed to an
invalid (unknown) BVCI. The test shows, that the message is echoed to
the SGSN.

Sponsored-by: On-Waves ehf
2013-10-19 12:10:21 +02:00
Jacob Erlbeck bc555742aa gbproxy: Add global and per peer counters
This adds counters that are incremented when errors are detected.
It also modifies the VTY command 'show gbproxy' so that
'show gbproxy stats' shows the counters.

Sponsored-by: On-Waves ehf
2013-10-19 12:10:19 +02:00
Jacob Erlbeck c5085f9d3d gbproxy: Fix warning and log message
Add the unused attribute to peer_free() that isn't used currently.
Change 'RAC' to 'NSEI' in the log message, since the latter has been
examined before the log message is generated.

Sponsored-by: On-Waves ehf
2013-10-19 12:10:16 +02:00
Jacob Erlbeck 2082afa76e gbproxy: Extended test program to simulate SGSN, too
This adds a simulation of the SGSN side of the Gbproxy. The VC is set
up correctly and several combinations of BSSGP messages are sent.

Sponsored-by: On-Waves ehf
2013-10-19 12:10:13 +02:00
Jacob Erlbeck e75fec60d0 gbproxy: Replace NS-VC references by NSEI
Currently in most places in gb_proxy.c a reference to a NS-VC object
is used where the peer is meant instead. The patch changes this by
using the NSEI instead in these cases.

Sponsored-by: On-Waves ehf
2013-10-15 15:19:29 +02:00
Jacob Erlbeck 51a869c80c gbproxy: Add test program to test gbproxy message handling
This program tests the gbproxy implementation by passing NS messages
to a modified gbproxy that dumps the resulting messages, signals, and
state.

It focusses on testing abnormal situations like port changes.

Ticket: OW#874
Sponsored-by: On-Waves ehf
2013-10-15 15:10:22 +02:00
Alexander Huemer 475f513aea ussd: Fix test for RELEASE COMPLETE
A correcsponding change in libosmocore sets text[0] to '\0'.
The test for 0xFF could never have been true.
2013-10-15 13:29:25 +02:00
Holger Hans Peter Freyther 8c90f47b09 misc: Require libosmocore 0.6.4 and libosmogb 0.6.4 2013-10-15 13:29:25 +02:00
Holger Hans Peter Freyther 7634ec1de1 db: Remove the struct gsm_network from the database layer
The database code should not know about the network. Move the
setting of the network pointer into the subscriber layer.
2013-10-13 13:44:54 +02:00
Alexander Chemeris 0c48fc7c62 abis: Consistent usage of LOGP/DEBUGP for "RSL CONNECT NACK" 2013-10-08 11:29:44 +02:00
Holger Hans Peter Freyther caa98d51b6 osmo-bts: Kill the different ROLE_BSC as e1inp_sign_link is used now 2013-10-06 15:52:14 +02:00
Alexander Chemeris bd6d40f1fb nitb: Add "subscriber create" VTY command.
It may be useful in production, but it's really required for
VTY testing of subscriber related commands.
2013-10-05 10:27:47 +02:00
Alexander Chemeris 4ad593c8f6 sms: Possiqble meamleak fix gsm340_rx_tpdu()
Slight clean up of the code in gsm340_rx_tpdu() and a fix for
an unlikely, but possible memory leak there.
2013-10-04 08:18:32 +02:00
Alexander Chemeris a3d41c9124 Fix typo in console output: "PEROIDOC" -> "PERIODIC". 2013-10-04 08:18:14 +02:00
Alexander Chemeris 8c16928beb Fix typo ',' -> ';' at the end of a line.
Funny, this is a correct C expression and doesn't change execution, thus it
stayed unnoticed for quite a while.
2013-10-04 08:18:01 +02:00
Alexander Chemeris 86d46c5c7a Fix copy-paste error in console output in db_test. 2013-10-04 08:17:52 +02:00
Jacob Erlbeck cc391b8880 bsc: Add control command to set timezone
This adds a per BTS control command 'timezone' which expects a value
of the format '<hours>,<mins>,<dst>' or 'off' to set the value of
bts->tz. It has the same functionality like the existing VTY command
'timezone' in network/bts.

Sponsored-by: On-Waves ehf
Ticket: OW#978
2013-10-01 17:25:44 +02:00
Holger Hans Peter Freyther 55e34a3325 smpp: Fix the make distcheck for smpp
DISTCHECK_CONFIGURE_FLAGS="--enable-smpp" make distcheck
2013-09-19 11:08:43 +02:00
Holger Hans Peter Freyther cb78612689 nat: Fix make distcheck for the nat
The jenkins runs make distcheck in the default configuration and
not with the nat enabled.

DISTCHECK_CONFIGURE_FLAGS="--enable-nat" make distcheck
2013-09-19 11:01:14 +02:00
Jacob Erlbeck 946d1415c2 bsc/mminfo: Patch timezone and DST in MM Info messages
This adds in-place patching of the time information in the
MM INFORMATION message. The timezone in the 'Local time zone' and
the 'Universal time and local time zone' information elements
and the offset in the 'Network Daylight Saving Time' information
element are optionally set.

The new values are determined by the 'timezone' vty command in the
config_net_bts node. That command is extended by an optional
DST offset parameter.

Tests are provided for the vty part and for the plain
bsc_scan_msc_msg() function.

Sponsored-by: On-Waves ehf
Ticket: OW#978
2013-09-19 10:57:13 +02:00
Ivan Kluchnikov 6792059d50 bsc: Add vty command for setting Access control classes. 2013-09-18 16:14:44 +02:00
Jacob Erlbeck 4f13d03213 ctrl: Set a generic reply when it hasn'n been set
When verification failed and the reply string was not updated, the
message "Someone forgot to fill in the reply." was shown instead
of the default "Value failed verification." message.

This patch changes the default reply handling in ctrl_cmd_handle()
by setting the reply to NULL initially and then checking it at the
end. If it hasn't been set, a generic message is assigned and an
error is logged.
2013-09-16 14:07:20 +02:00
Jacob Erlbeck 0760a83910 ctrl: Add test script for the BSC control interface
This script is similar to vty_test_runner.py but tests the control
interface instead.

It currently tests some error cases, BTS status queries, and
setting/clearing rf_locked.
2013-09-16 14:03:43 +02:00
Holger Hans Peter Freyther cd40fb4dea vty: Cosmetic change to the writing of the bts->model
Based on the feedback of Peter from the mailinglist, move the
writing code to a new method and return early if there is no
bts->model.
2013-09-16 14:03:43 +02:00
Jacob Erlbeck 779a72819d ctrl: Remember last 'rf_locked' control command
This stores the last SET rf_locked control command along with a
timestamp. The 'show network' vty command is extended to show
this information.

Ticket: OW#659
2013-09-11 20:27:08 +02:00
Jacob Erlbeck 733bec8626 vty: Hide unconfigured BTS on 'write'
This prevents the application from crashing when there is a half
configured BTS (e.g. by using the command 'bts 1' when there isn't
a BTS 1) and the 'write' command is used.
2013-09-11 20:20:33 +02:00
Jacob Erlbeck 56595f8647 ussd: Send USSD on call setup on MSC errors
Send an USSD message to the mobile station requesting a connection
for a call or a SMS when the link to the MSC is down or in the
grace period.

The messages can be set (and this feature activated) by setting
bsc/missing-msc-text resp. msc/bsc-grace-text via the vty.

The generation of both messages has been tested manually.

Ticket: OW#957
2013-09-11 20:18:42 +02:00
Holger Hans Peter Freyther 3ffd9bc0a4 bsc_msc: Fix possible null pointer dereference
In case the allocation of con is failing, do not attempt to
print con->name as this will be a null pointer dereference.

Fixes: Coverity CID 1076318
2013-09-04 08:45:48 +02:00
Holger Hans Peter Freyther 1b9902c128 nat: Remember the original dest local reference in the parsed struct
In case of the RLSD coming from the MSC we are patching the address
in-situ but for local calls set con = NULL. We then answered the RLSD
with the wrong reference and the MSC kept on trying.
2013-09-03 15:04:43 +02:00
Holger Hans Peter Freyther ff98b3cffa nat: Fix the log message of the code in case of an allocation failure
This wrong log message appears to be the result of copy and paste
2013-09-03 15:04:31 +02:00
Holger Hans Peter Freyther 33eb5873d9 bsc_msc: Stop the re-connect timer in case the msc is lost
It was possible to cause a crash by enabling and disabling the
MSC connection. The enabling lead to scheduling a connection
and the second call was not stopping the timer.
2013-09-03 15:04:17 +02:00
Holger Hans Peter Freyther c1a8687cb8 bsc_msc: Add a name field to the MSC Connection to differentiate links
Assign a static name to a MSC Connection and use it. In case there
are multiple connections we can now more easily identify them.

This is only used for the NAT right now, the BSC could start to
name the various MSC connections too.
2013-09-03 15:02:46 +02:00
Holger Hans Peter Freyther 0df1ab97a2 vty: Attempt to fix the build when SMPP is not enabled 2013-09-02 21:55:56 +02:00
Jacob Erlbeck 4c9dff5d8e vty: Rename 'mgcp-through-msc-ipa' command to 'use-msc-ipa-for-mgcp'
Currently the 'mgcp' command fails in the 'config-nat' node, because
it get confused with 'mgcp-through-msc-ipa' which is executed
instead because of the prefix based command selection. Thus the
latter command is renamed by this patch to avoid the common prefix.

The workaround in the test suite is removed.
2013-09-02 20:25:51 +02:00
Jacob Erlbeck 0ae92a950a vty: Use generic 'end' and 'exit' commands
Add bsc_install_default() and replace all install_default()

This patch adds bsc_install_default() which calls install_default()
and add 'exit' and 'end'. All other calls to install_default() are
replaced by calls to bsc_install_default().

Since 'exit' and 'end' are now added automatically to each node, the
explicit registrations of these commands are removed by this patch,
too.

The related tests succeed now without work-arounds (except for the
'config' node itself which is part of libosmocore).
2013-09-02 20:25:35 +02:00
Jacob Erlbeck 190acf6fd0 vty: Generalize ournode_exit() and ournode_end()
ournode_exit() duplicates most of bsc_vty_go_parent(). This patch
fixes the inconsistencies of both functions within
bsc_vty_go_parent() and replaces the implementation of
ournode_exit() by a call to it. This makes 'exit' behave exactly
like ^D in all openbsc nodes.

ournode_end() has been changed to walk through the intermediate
nodes until one of the top nodes is reached. This allows for
cleanups to be done on the way.

Note that in config mode if the tree is searched along the nodes
toward the config node and a command is not found this way, a
rollback is done by just replacing the vty's node and index member
variable by the saved old values which might break the whole thing, when
there has been a free() on the way.
2013-09-02 20:20:05 +02:00
Jacob Erlbeck 96903c4b2d vty: Add test to check vty node hierarchy and related commands
These tests check for the availability of 'exit' and 'end' in each
configuration node and for the node specific commands to traverse
the tree.
In addition, using these commands from within inner contexts is
checked. This will detect problems, when an outer command word is
a prefix of an inner command, like with 'mgcp' and
'mgcp-through-msc-ipa'.

Several assertions are disabled due to inconsistencies and missing
commands (see above).
2013-09-02 20:12:00 +02:00
Harald Welte 6a399efb72 SMPP: add missing VTY parameter 'deliver-src-imsi' for ESME
the parameter was already used in the code and saved from VTY code,
but somehow the functions for parsing it didn't make it into master.
2013-09-02 16:41:00 +02:00
Holger Hans Peter Freyther 6fcc3a9e8a nat: Attempt to follow the MODULE_METHOD pattern for methods
Rename methods to be like bsc_ussd_ACTION.
2013-09-02 11:11:16 +02:00
Holger Hans Peter Freyther 5741256703 nat: Use bsc_nat_msc_is_connected instead of accessing it directly 2013-09-02 11:00:09 +02:00
Holger Hans Peter Freyther c85ed4e8db bsc: Fix compiler warning about undeclare functions
Addresses:
osmo_bsc_sccp.c:280:2: warning: implicit declaration of function ‘gsm0480_send_ussdNotify’ [-Wimplicit-function-declaration]
osmo_bsc_sccp.c:281:2: warning: implicit declaration of function ‘gsm0480_send_releaseComplete’ [-Wimplicit-function-declaration]
2013-09-02 10:58:35 +02:00
Holger Hans Peter Freyther 9303df22bd nanobts: Fix initialization of two concurrent BTS.
It was possible that the wrong NSEI information was sent to the
BTS. This is because patch_nm_tables is not called before sending
the data to the BTS. This will break when two BTS connect more or
less at the same time.

Stop using the arrays directly and instead introduce a method
that will patch the table and return the data and length. This
makes sure that all users patch the table before we send the
data to the BTS.

I bootstrapped a sysmoBTS and I can bring up rsl. The device is
running with a dummy load so I couldn't do more verification.
2013-09-02 10:20:14 +02:00
Jacob Erlbeck 0b4f1b9e75 vty: Fix BSC_NODE prompt string
Change '%s(bsc)#' to '%s(config-bsc)# '. The missing trailing blank
breaks osmopy's VTYInteract.command() because the blank is contained
in the end patterns which are checked to decide whether to leave the
select loop. Thus trying to execute the 'bsc' command there blocks
the test script forever.
2013-08-31 15:55:16 +02:00
Jacob Erlbeck 97e139f267 bsc/vty: Add 'no bsc-welcome-text' command
There was no command to reset a bsc-welcome-text string, so it has
been added.
2013-08-28 11:10:44 +02:00
Jacob Erlbeck 1b894022fd bsc/ussd: Optionally send USSD message on MSC disconnection
Send an USSD message on each MS connection if the connection to
the MSC has been lost.
Add a vty config command 'bsc-msc-loss-txt' in 'config-msc' to set
the notification string and to enable the feature.

Ticket: OW#957
2013-08-28 11:10:44 +02:00
Holger Hans Peter Freyther 0c0e1c308f nat: Add example bsc entry for pablo 2013-08-27 21:32:29 +02:00
Pablo Neira Ayuso 326b5d80b3 libmgcp: add enum mgcp_role
This enum indicates if the mgcp is running on the BSC or the BSC-NAT.
2013-08-27 12:21:43 +02:00
Pablo Neira Ayuso d81fec021e libmgcp: attach mgcp_ prefix to udp_send
This patch is a cleanup.
2013-08-27 12:21:24 +02:00
Andreas Eversberg a874b8d396 Fix: Handle CM service request on already secured channel correctly
Second part of the previous patch. Log an error message in case
we receive a location updating request on an already authenticated
channel.
2013-08-18 10:32:45 +02:00
Pablo Neira Ayuso 66b52c1df8 libmgcp: add mgcp prefix to functions and constants
Functions and constants that belong to the libmgcp scope are prefixed
with mgcp_ and MGCP_. This patch is a cleanup.
2013-08-14 16:20:37 +02:00
Jacob Erlbeck 6cb2cccc8d nat/ussd: Add 'show ussd-connection' vty command
This command returns the current state of the connection to the USSD
side channel provider. It shows whether a provider has been connected
and authorized or not.

Fixes: OW#953
2013-08-14 12:07:07 +02:00
Holger Hans Peter Freyther 27876a2df0 nat: Fix potential memory leak when reading a message
Spotted while going through the code with Jacob. We could have
leaked the msgb in case of error.
2013-08-13 14:48:44 +02:00
Holger Hans Peter Freyther 9962151230 nat: Misc changes spotted while going through the file with Jacob
* Spell Configure correctly
* Use %s and VTY_NEWLINE instead of \n
2013-08-13 11:36:33 +02:00
Harald Welte 045f402298 SMPP: use VTY setting for E212/E164 in ALERT NOTIFICATION
There's a VTY option by which for every ESME the user can specify if the
E.212 or E.164 number should be used in DELIVER-SM.  The ALERT
notifications generate by subscriber LU have so far always contained the
E.212 (IMSI) rather than E.164 (MSISDN) which is a bit inconsistent.

Rather than copying code, we create a new function that implements
ALERTing all ESMEs.
2013-08-03 19:20:37 +02:00
Harald Welte 99e273db00 SMPP: convert a SMMA to a SMPP ALERT NOTIFICATION 2013-08-03 19:20:36 +02:00
Harald Welte 1aeb2af75d SMPP: don't get stuck in case of SMS memory exceeded
If the MS memory for SMS is exceeded and we get an RP-layer error, we
need to report that back to the (transaction-mode) ESME.  Otherwise the
ESME will wait forever after sending a SUBMIT-SM without ever receiving
a response to it.

Thanks to Holger for catching this.
2013-08-03 19:20:36 +02:00
Holger Hans Peter Freyther 52f705eaab nat: Use the DCC region for number rewriting and increase debug output 2013-07-31 16:36:40 +02:00
Holger Hans Peter Freyther 67e423c256 nat: Implement a post-routing for the NAT software
* The post-routing is applied after the first re-writing. To do this
  the new number is copied back into the called data structure.

* Add a testcase that goes from 0172 to 0049 and then back to 0049
  using the post rule with a table lookup.
2013-07-31 16:36:40 +02:00
Holger Hans Peter Freyther 3615a30d3d nat: Fix some memory leaks in the testcases.
The test cases did not free some of the resources it allocated.
Improve the situation a bit. There is still data allocated that
is not freed at exit.
2013-07-31 16:36:40 +02:00
Holger Hans Peter Freyther ddf191eafc nat: Allow to use the prefix lookup to rewrite numbers
* Increase the rewritten rule to five digits (this is the easiest
  for the unit test). This will add another 40kb to the runtime size.

* Create a unit test that tests adding and removing the prefix rules.

* Use the regexp match to replace from one package
2013-07-31 16:36:40 +02:00
Holger Hans Peter Freyther 85d3b34ed2 nat: Introduce a prefix lookup tree (trie) for number rewriting
* It is a trie. The max depth of the trie is the length of the
longest prefix. The lookup is O(lookuped_prefix), but as the prefix
length is limited, the lookup time is constant.

* Each node can hold the entire prefix, has place for the rewrite
  rule with up to three digits.

* A trie with 20k entries will take about 3MB ram.

* Filling the trie 100 times takes ~800ms on my i7 laptop

* 10.000.000 lookups take 315ms.. (for the same prefix).

* 93/99 lines are tested, 6/6 functions are tested, 49 of 54 branches
  are tested. Only memory allocation failures are not covered

* A late addition is to handle the '+' sign and to increase the number
  of chars in the rewrite prefix. The timing/line coverage has not
  been updated after this change.
2013-07-31 16:36:40 +02:00
Holger Hans Peter Freyther b718ad397e nat: Add a no number-rewrite command and call it through a VTY test
The test is just testing the invocation but does not verify that
the side effect of this call. It is good enought for now.
2013-07-31 16:36:13 +02:00
Holger Hans Peter Freyther aa93bac34b gprs_gmm: Avoid assertion in the sending code during routing area update
Use old and new tlli as specified by the caller.

WIP

<000f> sgsn_libgtp.c:321 Received DELETE PDP CTX CONF, cause=128(Request accepted)
<0013> gprs_sndcp.c:320 SNSM-DEACTIVATE.ind (lle=0x8095d08, TLLI=e3ddd574, SAPI=11, NSAPI=5)
<0011> gprs_bssgp.c:376 BSSGP TLLI=0xe3ddd574 Rx UPLINK-UNITDATA
<0012> gprs_llc.c:551 LLC SAPI=1 C   FCS=0xb85a96CMD=UI DATA
<0011> gprs_bssgp.c:376 BSSGP TLLI=0xe3ddd574 Rx UPLINK-UNITDATA
<0012> gprs_llc.c:551 LLC SAPI=1 C   FCS=0xbe5a96CMD=UI DATA
<0002> gprs_gmm.c:214 Starting MM timer 3350 while old timer 3350 pending
<0012> gprs_llc.c:417 LLC TX: unknown TLLI 0xe3ddd574, creating LLME on the fly
Assert failed msgb_tlli(msg) == mmctx->llme->tlli || msgb_tlli(msg) == mmctx->llme->old_tlli || tlli_foreign2local(msgb_tlli(msg)) == mmctx->llme->tlli || tlli_foreign2local(msgb_tlli(msg)) == mmctx->llme->old_tlli gprs_llc.c:123
backtrace() returned 18 addresses
/home/ich/install/openbsc/lib/libosmocore.so.4(osmo_generate_backtrace+0x16) [0xb7bb6a36]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x805224a]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x804a2f6]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x804b687]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x804bc35]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x804bd4e]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x804d20c]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x8052be4]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn(bssgp_prim_cb+0x55) [0x804f5a4]
/home/ich/install/openbsc/lib/libosmogb.so.2(bssgp_rcvmsg+0x3b8) [0xb7b626b8]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x804f4f1]
/home/ich/install/openbsc/lib/libosmogb.so.2(gprs_ns_rcvmsg+0x8c7) [0xb7b5ecf7]
/home/ich/install/openbsc/lib/libosmogb.so.2(+0x4311) [0xb7b5f311]
/home/ich/install/openbsc/lib/libosmocore.so.4(osmo_select_main+0x192) [0xb7bb2ed2]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x804fbcd]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(__libc_start_main+0xf5) [0xb796a8f5]
/home/ich/source/gsm/openbsc/openbsc/src/gprs/osmo-sgsn() [0x8049db1]

Program received signal SIGABRT, Aborted.
0xb7fde424 in __kernel_vsyscall ()
(gdb) bt
 #0  0xb7fde424 in __kernel_vsyscall ()
 #1  0xb797f83f in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
 #2  0xb7982cf3 in __GI_abort () at abort.c:90
 #3  0x0805224f in _bssgp_tx_dl_ud (mmctx=0x80932d0, msg=0x80963a8) at gprs_llc.c:120
 #4  gprs_llc_tx_ui (msg=0x80963a8, sapi=1 '\001', command=0, mmctx=0x80932d0)
    at gprs_llc.c:496
 #5  0x0804a2f6 in gsm48_gmm_sendmsg (msg=0x80963a8, command=0, mm=0x80932d0) at gprs_gmm.c:241
 #6  0x0804b687 in gsm48_tx_gmm_ra_upd_ack (mm=0x80932d0) at gprs_gmm.c:851
 #7  0x0804bc35 in gsm48_rx_gmm_ra_upd_req (mmctx=0x80932d0, msg=0x8091ce8, llme=0x8095630)
    at gprs_gmm.c:1004
 #8  0x0804bd4e in gsm0408_rcv_gmm (mmctx=0x80932d0, msg=0x8091ce8, llme=0x8095630)
    at gprs_gmm.c:1036
 #9  0x0804d20c in gsm0408_gprs_rcvmsg (msg=msg@entry=0x8091ce8, llme=0x8095630)
    at gprs_gmm.c:1566
 #10 0x08052be4 in gprs_llc_rcvmsg (msg=0x8091ce8, tv=0xbfffdcb0) at gprs_llc.c:882
 #11 0x0804f5a4 in bssgp_prim_cb (oph=oph@entry=0xbfffdc8c, ctx=ctx@entry=0x0)
    at sgsn_main.c:114
 #12 0xb7b626b8 in bssgp_rx_ul_ud (tp=0xbfffdcb0, msg=0x8091ce8, ctx=<optimized out>)
    at gprs_bssgp.c:398
 #13 bssgp_rx_ptp (bctx=0x8091a08, tp=0xbfffdcb0, msg=0x8091ce8) at gprs_bssgp.c:820
 #14 bssgp_rcvmsg (msg=0x8091ce8) at gprs_bssgp.c:1016
 #15 0x0804f4f1 in sgsn_ns_cb (event=GPRS_NS_EVT_UNIT_DATA, nsvc=0x8090740, msg=0x8091ce8,
    bvci=1801) at sgsn_main.c:92
 #16 0xb7b5ecf7 in gprs_ns_rx_unitdata (msg=0x8091ce8, nsvc=0x8090740) at gprs_ns.c:616
 #17 gprs_ns_rcvmsg (nsi=nsi@entry=0x807fd38, msg=msg@entry=0x8091ce8,
    saddr=saddr@entry=0xbfffedc0, ll=ll@entry=GPRS_NS_LL_UDP) at gprs_ns.c:841
 #18 0xb7b5f311 in handle_nsip_read (bfd=0x807fd58) at gprs_ns.c:991
 #19 nsip_fd_cb (bfd=0x807fd58, what=1) at gprs_ns.c:1024
 #20 0xb7bb2ed2 in osmo_select_main (polling=0) at select.c:158
 #21 0x0804fbcd in main (argc=3, argv=0xbffff234) at sgsn_main.c:369
(gdb) frame 5
 #5  0x0804a2f6 in gsm48_gmm_sendmsg (msg=0x80963a8, command=0, mm=0x80932d0) at gprs_gmm.c:241
241		return gprs_llc_tx_ui(msg, GPRS_SAPI_GMM, command, mm);
(gdb) p msgb_tlli(msg)
$1 = 3822966132
(gdb) frame 4
 #4  gprs_llc_tx_ui (msg=0x80963a8, sapi=1 '\001', command=0, mmctx=0x80932d0)
    at gprs_llc.c:496
496		return _bssgp_tx_dl_ud(msg, mmctx);
(gdb) p mmctx
$2 = (void *) 0x80932d0
(gdb) frame 3
 #3  0x0805224f in _bssgp_tx_dl_ud (mmctx=0x80932d0, msg=0x80963a8) at gprs_llc.c:120
120			OSMO_ASSERT(msgb_tlli(msg) == mmctx->llme->tlli
(gdb) p mmctx
$3 = (struct sgsn_mm_ctx *) 0x80932d0
(gdb) p *mmctx
$4 = {list = {next = 0x8092e28, prev = 0x805c318 <sgsn_mm_ctxts>},
  imsi = "901700000003094\000", mm_state = GMM_REGISTERED_NORMAL, p_tmsi = 296043751,
  p_tmsi_old = 2075232571, p_tmsi_sig = 0, imei = "353943044782210\000",
  msisdn = '\000' <repeats 14 times>, ra = {mnc = 70, mcc = 901, lac = 1, rac = 0 '\000'},
  cell_id = 0, cell_id_age = 0, sac = 0, sac_age = 0, new_sgsn_addr = 0,
  ciph_algo = GPRS_ALGO_GEA0, ms_radio_access_capa = {len = 11 '\v',
    buf = "4\307\003*\240B|\255\341\030\v", '\000' <repeats 38 times>}, ms_network_capa = {
    len = 2 '\002', buf = "\345\200\000\000\000\000\000"}, drx_parms = 3329, mnrg = 0,
  ngaf = 0, ppf = 0, recovery = 0, radio_prio_sms = 0 '\000', pdp_list = {next = 0x8093390,
    prev = 0x8093390}, llme = 0x8095630, tlli = 3822966132, tlli_new = 3517269223,
  nsei = 1801, bvci = 1801, ctrg = 0x8096048, timer = {node = {rb_parent_color = 3082574944,
      rb_right = 0x0, rb_left = 0x0}, list = {next = 0x80933b8, prev = 0x80933b8}, timeout = {
      tv_sec = 1375260414, tv_usec = 864196}, active = 1, cb = 0x804bfd0 <mmctx_timer_cb>,
    data = 0x80932d0}, T = 3350, num_T_exp = 0, t3350_mode = GMM_T3350_MODE_RAU,
  t3370_id_type = 1 '\001'}
(gdb) p msgb_tlli(msg)
No symbol "msgb_tlli" in current context.
(gdb) frame 5
 #5  0x0804a2f6 in gsm48_gmm_sendmsg (msg=0x80963a8, command=0, mm=0x80932d0) at gprs_gmm.c:241
241		return gprs_llc_tx_ui(msg, GPRS_SAPI_GMM, command, mm);
(gdb) frame 6
 #6  0x0804b687 in gsm48_tx_gmm_ra_upd_ack (mm=0x80932d0) at gprs_gmm.c:851
851		return gsm48_gmm_sendmsg(msg, 0, mm);
(gdb) p msgb_tlli(msg)
$5 = 3822966132
(gdb) p mmctx->tlli
No symbol "mmctx" in current context.
(gdb) p mm->tlli
$6 = 3822966132
(gdb) p mm->tlli_new
$7 = 3517269223
(gdb) p mm->llme->tlli
$8 = 3517269223
(gdb) p mm->llme->tlli_old
There is no member named tlli_old.
(gdb) p mm->llme->old_tlli
$9 = 4222716219
(gdb) bt
 #0  0xb7fde424 in __kernel_vsyscall ()
 #1  0xb797f83f in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
 #2  0xb7982cf3 in __GI_abort () at abort.c:90
 #3  0x0805224f in _bssgp_tx_dl_ud (mmctx=0x80932d0, msg=0x80963a8) at gprs_llc.c:120
 #4  gprs_llc_tx_ui (msg=0x80963a8, sapi=1 '\001', command=0, mmctx=0x80932d0)
    at gprs_llc.c:496
 #5  0x0804a2f6 in gsm48_gmm_sendmsg (msg=0x80963a8, command=0, mm=0x80932d0) at gprs_gmm.c:241
 #6  0x0804b687 in gsm48_tx_gmm_ra_upd_ack (mm=0x80932d0) at gprs_gmm.c:851
 #7  0x0804bc35 in gsm48_rx_gmm_ra_upd_req (mmctx=0x80932d0, msg=0x8091ce8, llme=0x8095630)
    at gprs_gmm.c:1004
 #8  0x0804bd4e in gsm0408_rcv_gmm (mmctx=0x80932d0, msg=0x8091ce8, llme=0x8095630)
    at gprs_gmm.c:1036
 #9  0x0804d20c in gsm0408_gprs_rcvmsg (msg=msg@entry=0x8091ce8, llme=0x8095630)
    at gprs_gmm.c:1566
 #10 0x08052be4 in gprs_llc_rcvmsg (msg=0x8091ce8, tv=0xbfffdcb0) at gprs_llc.c:882
 #11 0x0804f5a4 in bssgp_prim_cb (oph=oph@entry=0xbfffdc8c, ctx=ctx@entry=0x0)
    at sgsn_main.c:114
 #12 0xb7b626b8 in bssgp_rx_ul_ud (tp=0xbfffdcb0, msg=0x8091ce8, ctx=<optimized out>)
    at gprs_bssgp.c:398
 #13 bssgp_rx_ptp (bctx=0x8091a08, tp=0xbfffdcb0, msg=0x8091ce8) at gprs_bssgp.c:820
 #14 bssgp_rcvmsg (msg=0x8091ce8) at gprs_bssgp.c:1016
 #15 0x0804f4f1 in sgsn_ns_cb (event=GPRS_NS_EVT_UNIT_DATA, nsvc=0x8090740, msg=0x8091ce8,
    bvci=1801) at sgsn_main.c:92
 #16 0xb7b5ecf7 in gprs_ns_rx_unitdata (msg=0x8091ce8, nsvc=0x8090740) at gprs_ns.c:616
 #17 gprs_ns_rcvmsg (nsi=nsi@entry=0x807fd38, msg=msg@entry=0x8091ce8,
    saddr=saddr@entry=0xbfffedc0, ll=ll@entry=GPRS_NS_LL_UDP) at gprs_ns.c:841
 #18 0xb7b5f311 in handle_nsip_read (bfd=0x807fd58) at gprs_ns.c:991
 #19 nsip_fd_cb (bfd=0x807fd58, what=1) at gprs_ns.c:1024
 #20 0xb7bb2ed2 in osmo_select_main (polling=0) at select.c:158
 #21 0x0804fbcd in main (argc=3, argv=0xbffff234) at sgsn_main.c:369
(gdb) frame 3
 #3  0x0805224f in _bssgp_tx_dl_ud (mmctx=0x80932d0, msg=0x80963a8) at gprs_llc.c:120
120			OSMO_ASSERT(msgb_tlli(msg) == mmctx->llme->tlli
(gdb) p msgb_tlli(msg)
No symbol "msgb_tlli" in current context.
(gdb) frame 4
 #4  gprs_llc_tx_ui (msg=0x80963a8, sapi=1 '\001', command=0, mmctx=0x80932d0)
    at gprs_llc.c:496
496		return _bssgp_tx_dl_ud(msg, mmctx);
(gdb) p msgb_tlli(msg)
No symbol "msgb_tlli" in current context.
(gdb) frame 5
 #5  0x0804a2f6 in gsm48_gmm_sendmsg (msg=0x80963a8, command=0, mm=0x80932d0) at gprs_gmm.c:241
241		return gprs_llc_tx_ui(msg, GPRS_SAPI_GMM, command, mm);
(gdb) p msgb_tlli(msg)
$10 = 3822966132
(gdb) p mm->tlli
$11 = 3822966132
(gdb) p mm->tlli_new
$12 = 3517269223
(gdb) p mm->tlli_new
$13 = 3517269223
(gdb) p mm->llme->tlli
$14 = 3517269223
(gdb) p mm->llme->tlli_old
There is no member named tlli_old.
(gdb) p mm->llme->old_tlli
$15 = 4222716219
(gdb) p mm->llme->state
$16 = GPRS_LLMS_ASSIGNED
(gdb) q
2013-07-31 16:12:02 +02:00
Holger Hans Peter Freyther 7e0fec17ce gprs_llc: Assert that we send frames with either tlli or old_tlli
In case we have access to the context verify that the selected
msgb_tlli is either the old_tlli or the tlli in either local or
foreign format. It is wrong to use any other TLLI.
2013-07-31 14:57:21 +02:00
Holger Hans Peter Freyther 964a9b3e20 gprs_llc: Work on finding the right LLE/LLME in case of routing area update
Attempt to solve what f0901f0067 tried to
solve without breaking the case of someone with a foreign TLLI from a
different network.

Lookup with the foreign TLLI converted to a local one in case we did
not find the TLLI and only then create a LLE/LLME on the fly for the
RX path.
2013-07-31 14:57:21 +02:00
Holger Hans Peter Freyther 012a7eec29 gprs_llc: Lookup lle based on the real TLLI
During the GPRS Attach procedure we might have a foreign tlli and
in the RX create a LLME on the fly for this tlli. The GMM GPRS
Attach handling code will then assign a new TLLI and keep the
foreign tlli as the llme->old_tlli.

When the GMM is sending the identity request the msgb_tlli will
point to the foreign tlli. The GPRS LLC code will then try to find
that foreign tlli but due the conversion this will not be found.
Instead a new ad-hoc LLE/LLME will be created on the fly for
each message (this means there are duplicate LLE/LLMEs in the
list).

Make the code more strict and remove the tlli_foreign2local change
from the look-up routine. This will make the GPRS LLC code find
the right LLE/LLME and the N(U) will be handled correctly.

This partially reverts:
  f0901f0067

Addresses:
  <0012> gprs_llc.c:773 LLC RX: unknown TLLI 0xadf11820, creating LLME on the fly
  ...
  <0012> gprs_llc.c:357 LLC TX: unknown TLLI 0xedf11820, creating LLME on the fly

Reproducable:
  Use pcu_emu (gprs attach) and observe with wireshark.
2013-07-31 14:57:21 +02:00
Holger Hans Peter Freyther 598e7b3cdf gprs_sgsn: In case of a Activate PDP Context timeout we should free pdp
In case of a failure this method didn't set the pctx->lib back to
NULL. In case of a timeout the callback will be made with pdp=NULL
and this would lead to leaking the PDP context. Check for the case
of having a pctx->lib != pdp and free it.

This resolves:
<000f> gprs_sgsn.c:259 freeing PDP context that still has a libgtp handle attached to it, this shouldn't happen!
2013-07-31 14:57:21 +02:00
Holger Hans Peter Freyther 92aa6bb9dc gprs: Fix a typo in the comment 2013-07-28 20:13:01 +02:00
Holger Hans Peter Freyther c0438e3587 tests: TestCase.assertGreater is not available on Python 2.5
The jenkins build node has Python 2.5.X installed and the
assertGreater method is not available. Use assert_ until
we can use newer versions of Python.
2013-07-27 22:23:25 +02:00
Holger Hans Peter Freyther c63f6f1f32 expiration: Allow to disable the periodic location updating procedure
Disable the periodic LU using "no periodic location update" VTY
command. In that case set the expire_lu to 0 which will then be
translated to a NULL in the database layer. This leads to a bit of
copy and paste in the db_sync_subscriber method but I don't see
how we could easily use 'datetime(%i, 'unixepoch')' and 'NULL'
at the same time.

Change the query to find expired queries to check for NOT NULL
and the time being in the past. This means if there are still
old subscribers in the database they might not be expired. One
would need to execute a query like "UPATE Subscriber SET expire_lu
= 0 WHERE expire_lu is null". The same applies when disabling the
periodic LU. One would need to update the database by hand.

Manual tests executed/passed:

1.) periodic LU enabled:

  * use gst LUTest.st to do a LU
  * UPDATE Subscriber SET expire_lu=datetime('now');
  * observe the subscriber being expired (it was)

2.) periodic LU disabled:

  * use gst LUTest.st to do a LU
  * verify that the expire_lu is NULL in the database
2013-07-27 22:02:24 +02:00
Holger Hans Peter Freyther e7bd863f76 expiration: Speculative fixes for the periodic expiring handling
We were expiring subscribers during active calls. This is because
the T3212 is stopped under certain conditions but we didn't stop
that timer at all.

Remember if T3212 timer was stopped due something done by NITB and
update the expiration time at the end of the radio connection, as
the phone should restart it when returning to MM Idle.

It is a bit difficult to decide when we should set the flag. E.g.
in a CM Service Request we don't know if we accept the service and
during a LU we already send MM messages before we accept or reject
the subscriber.

The easiest is to set the flag when receiving a paging response
on known subscribers and at the end of the authentication process.

Do not expire a subscriber that has an active connection that is
marked with the flag, e.g. we would still expire a subscriber that
is being paged.

Manual tests executed/passed:

 * gst LUTest.st verified that a expiration date was set
 * gst SMSTest.st (doing another LU but forcing a timeout on the
   SMS sending). Verified that the expire_lu was updated.
2013-07-27 21:39:13 +02:00
Holger Hans Peter Freyther b97089432f expiration: Print the "expire_lu" time in show subscriber
This can help with debugging subscriber expiration issues.
2013-07-27 20:03:11 +02:00
Holger Hans Peter Freyther a7328a5642 smpp: Move the coding/mode detection into a utils file
Make sure to not ever have issues with this code again, move the
utility code to a new file and create a basic testcase. The method
currently has 100% line and branch coverage. My initial patched
missed the smpp_utils.c file and I re-did the copying (and verifying
the branch coverage)
2013-07-27 20:03:10 +02:00
Holger Hans Peter Freyther 5ecbc93656 misc: Fix compilation warnings
bsc_api.c:417:3: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 7 has type ‘unsigned int’ [-Wformat]
bsc_api.c: In function ‘handle_ass_fail’:
bsc_api.c:458:3: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 7 has type ‘unsigned int’ [-Wformat]

db.c: In function ‘db_sync_subscriber’:
db.c:785:3: warning: format ‘%i’ expects argument of type ‘int’, but argument 8 has type ‘time_t’ [-Wformat]

osmo_msc.c: In function ‘msc_release_connection’:
osmo_msc.c:145:20: warning: unused variable ‘trans’ [-Wunused-variable]

smpp_smsc.c: In function ‘link_accept_cb’:
smpp_smsc.c:891:24: warning: assignment from incompatible pointer type [enabled by default]

smpp_smsc.c:271:1: warning: ‘esme_by_system_id’ defined but not used [-Wunused-function]

smpp_openbsc.c: In function ‘smpp_openbsc_init’:
smpp_openbsc.c:545:2: warning: implicit declaration of function ‘smpp_vty_init’ [-Wimplicit-function-declaration]

osmo_bsc_ctrl.c: In function ‘verify_bts_loc’:
osmo_bsc_ctrl.c:340:19: warning: variable ‘height’ set but not used [-Wunused-but-set-variable

smpp_mirror.c: In function ‘main’:
smpp_mirror.c:297:2: warning: implicit declaration of function ‘osmo_init_logging’ [-Wimplicit-function-declaration]
2013-07-27 20:03:08 +02:00
Harald Welte 649e1ff4b3 sgsn: spelling fixes inside comments 2013-07-21 17:41:46 +08:00
Harald Welte b4b21f59f6 SMPP: complete the VTY help/documentation
As discovered by osmotestconfig.py, a number of SMPP related VTY
commands were missing their help/documentation text.
2013-07-21 16:00:28 +08:00
Harald Welte badb12f6a6 remove 'bind early' from osmo-bsc_mgcp example config
(discovered by osmotestconfig.py)
2013-07-21 15:52:40 +08:00
Harald Welte 3dfb549a6f sgsn: Add "auth-policy" VTY command to enable/disable ACL 2013-07-21 15:44:28 +08:00
Harald Welte 7f6da485f5 sgsn: add a minimalistic ACL
This adds a minimalistic ACL by which certain, individual roaming IMSIs
can be authorized to use the SGSN.  So you can selectively bypass the
'MCC+MNC == first 5 digits of IMSI' checking for a couple of IMSIs
2013-07-21 15:44:24 +08:00
Holger Hans Peter Freyther cb5353d851 oml: Add a missing break switch for NM_OC_BS11
It appears to me that for NM_OC_BS11 mo was either NULL or the
one mo value from NM_OC_BS11_RACK. The break inside the nested
switch case didn't break from the outer one.

Fixes Coverity: CID 1040728
2013-07-18 12:03:31 +02:00
Holger Hans Peter Freyther 1b624ba1f6 smpp: Close the file descriptor when we can't accept the SMSC conn
When we failed to allocate the memory or failed to register the
fd we would have leaked the file descriptor. Close the fd and
avoid the leak.
2013-07-14 09:04:51 +02:00
Holger Hans Peter Freyther c962d45669 smpp: Add the classic check for osmo_fd_register
In case the osmo_fd_register will fail we will need to free the
memory we have allocated.

Fixes: Coverity CID 1042375
2013-07-14 09:04:51 +02:00
Holger Hans Peter Freyther 921b2278df smpp: Fix possible NULL dereference of the emse->acl
The esme->acl is treated like it can be NULL in other places
of the code. Assume it can be NULL during this check as well.

Dereference after null check (FORWARD_NULL)
9. var_deref_op: Dereferencing null pointer "esme->acl".

Fixes: Coverity CID 1042374
2013-07-14 09:04:51 +02:00
Holger Hans Peter Freyther ae9d8d3131 smpp: Checking an array for NULL will always be false
The if (submit->short_message) and if (smsc->system_id) will
always be true.

Fixes: Coverity CID 1042371, CID 1042372
2013-07-14 09:04:50 +02:00
Holger Hans Peter Freyther c9251fa8c9 ipaccess: The proxy code checked the array but not the element
Array compared against 0 (NO_EFFECT)
array_null: Comparing an array to null is not useful: "ipbc->bsc_rsl_conn".

Fixes: Coverity CID 1040718
2013-07-14 09:04:50 +02:00