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Currently sending SUSPEND/RESUME messages to this function (like it
is done in the osmo-sgsn) results in STATUS messages complaining
about an unknown BVCI. The reason is, that these messages rely on a
TLLI/RAI pair to identify the context and do not contain an explicit
BVCI.
This patch modifies bssgp_rcvmsg() to only complain about and unknown
BVCI if one is given but a matching context is not found (except for
RESET messages). The ctx argument is removed from the functions
handling SUSPEND and RESUME since it will always be NULL then.
Sponsored-by: On-Waves ehf
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This patch adds a test suite for the BSSGP protocol.
The first (and only) test checks the handling of BSSGP
SUSPEND/RESUME.
Sponsored-by: On-Waves ehf
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Signed-off-by: Max <max.suraev@fairwaves.co>
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In the OsmoSGSN we have a crash with a DEAD/BLOCKED GPRS-NS and
segmented SN-UNITDATA. For the caller it is not easy to know if
the passed msg buffer has been freed or not. The most easy solution
is to always take the ownership and either pass it on or free it
in case of an error.
Adjust indirect and direct callers of gprs_ns_sendmsg. I found
the following call-chains with an external msgb parameter.
gprs_ns_sendmsg
<- _bssgp_tx_dl_ud
<- bssgp_fc_in
<- bssgp_tx_dl_ud
Update the test to allocate a real msgb because for the test with
'1000' we will msgb_free it right away.
Sponsored-by: On-Waves ehf
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This patch extends test_sgsn_reset_invalid_state by assertions to check
that nscv->state and nsvc->remote_state have been set as expected.
Sponsored-by: On-Waves ehf
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The return value check has been removed in the commit 'Use
gprs_nsvc_reset instead of gprs_ns_tx_reset', because gprs_nsvc_reset
had no return value then. Since a compatible return value has been
added by 'Let gprs_nsvc_reset return a value', the former patch is
partly reverted by this commit.
The printf is now an OSMO_ASSERT. The commit message was taken
from Jacob.
Sponsored-by: On-Waves ehf
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Currently the NS-VC's state is updated from within gprs_ns_tx_reset,
which can lead to an inconsistent state when the RESET_ACK is lost.
In this state, the NSE_S_RESET bit is set but the Tns-reset timer is
not started.
This patch moves the state update into gprs_nsvc_reset. This way, the
state flags are consistent with the timer.
Addresses:
SGSN -> BSS NS_ALIVE
BSS -> SGSN NS_ALIVE_ACK
BSS -> SGSN BVC_RESET
SGSN -> BSS NS_STATUS, Cause: NS-VC blocked, NS VCI: 0x65
and there is no BSS->SGSN NS_ALIVE
Ticket: OW#1213
Sponsored-by: On-Waves ehf
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Currently gprs_nsvc_reset does not return any value.
This patch changes the function to return an integer, where a value
less than zero indicates an error. The value is taken from the
gprs_ns_tx_reset function. In case of failure, an error message is logged.
Sponsored-by: On-Waves ehf
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This tests the behaviour for a certain combination of messages and
packet losses that can put the NS-VC object into an undefined state.
In that state, the peer's ALIVE messages are properly answered, but
the local test procedure has stopped, incoming unitdata PDUs are
answered by STATUS(NS-VC blocked) and the unblocking procedure is not
initiated.
Ticket: OW#1312
Sponsored-by: On-Waves ehf
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This function forces the expiration of the timer within struct
gprs_nsvc. It is meant to be used for controlled (and faster) timer
expiration in unit tests. The timer_mode of the expired timer is
returned (or -1 if the timer wasn't active).
Sponsored-by: On-Waves ehf
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This records the PDU type of the last message sent to the remote peer
in the global variable sent_pdu_type, which can then be used in
assertions.
Note that sent_pdu_type will remain unchanged if no message has been
sent via sendto.
Sponsored-by: On-Waves ehf
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Currently gprs_ns_tx_reset is used to let the NS stack generate
NS_RESET message. This is not adjusting the nsvc state properly.
This patch uses gprs_nsvc_reset instead which starts the full reset
procedure.
Sponsored-by: On-Waves ehf
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CC msgfile_test.o
msgfile/msgfile_test.c: In function "main":
msgfile/msgfile_test.c:48:2: warning: implicit declaration of
function "talloc_free" [-Wimplicit-function-declaration]
talloc_free(entries);
^
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When the osmocore package is configured with --disable-static,
building of kasumi_test fails. This seems quite legit, given
the function _kasumi_kgcore is not exported.
Don't try to workaround the build system. Include the code.
CCLD kasumi/kasumi_test
kasumi_test.o: In function `test_expansion':
~tests/kasumi/kasumi_test.c:25: undefined reference to `_kasumi_key_expand'
kasumi_test.o: In function `main':
~tests/kasumi/kasumi_test.c:56: undefined reference to `_kasumi'
~tests/kasumi/kasumi_test.c:100: undefined reference to `_kasumi_key_expand'
~tests/kasumi/kasumi_test.c:112: undefined reference to `_kasumi_kgcore'
[...]
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Preprocessor flags are best placed in AM_CPPFLAGS. Remove use of the
unused all_includes variable, which is never set.
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CC osmo-auc-gen.o
osmo-auc-gen.c: In function 'main':
osmo-auc-gen.c:216:3: warning: implicit declaration of function
'time' [-Wimplicit-function-declaration]
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the bits/crc files are not inside the sourcedirectory but will end
in the build directory. Go and look there as well. This somehow
doesn't fail with make distcheck but when building for Yocto Dizzy.
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Currently the bssgph field is not set when using the bssgp_tx_*
functions. This hinders unit testing of generated messages.
This patch initializes the bssgph field directly after allocation a
new bssgp msgb in bssgp_msgb_alloc() so that it is set by default.
Sponsored-by: On-Waves ehf
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Currently BSSGP messages with an NS BVCI of 0 (signalling) are
discarded if they aren't RESET messages. Thus valid signalling
messages (e.g. BLOCK) are not handled properly, because the BVCI IE
is ignored if it present. Instead a STATUS message referring to BVCI
0 (instead of the BVCI used in the BLOCK message) is returned.
This patch changes the implementation to use the BVCI contained in
the BVCI IE if that is present in a signalling message.
It fixes BSSGP BLOCK/UNBLOCK for the osmo-sgsn.
Note that signalling messages without an BVCI IE (e.g.
SUSPEND/RESUME) are still rejected.
Ticket: OW#1205
Sponsored-by: On-Waves ehf
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Currently the BVCI is not set in all invocations to bssgp_tx_status()
when the cause is UNKNOWN_BVCI.
This patch adds the argument where it is missing.
It also adds a check for compliance (GSM 08.18, 10.4.14.1) to
bssgp_tx_status() to emit errors when the following requirement is
not fulfilled: The BVCI must be included if (and only if) the cause
is either "BVCI blocked" or "BVCI unknown".
Sponsored-by: On-Waves ehf
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When I wrote the gan.c, I used the wrong copyright/license header
(AGPLv3+ intead of GPLv2+). This was a mistake and is fixed hereby.
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Some source code files didn't have the usual copyright and licence
statement at their top. I'm adding them baesed on information in the
commitlog.
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libosmogsm: the transition from 5 to 6 wasn't done properly. Fixed version number.
libosmoctrl: missing definition in debian/control and also missing libosmoctrl0.install.
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In commit fb84f325b8e672ba7ca1a961f4ef01f4d011e33d the ABI
was broken, let's add the required entry.
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This enables the persistent configuration of let's say
'log filter imsi 012345678' for a given log file in the config
file.
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Sometimes a control interface command cannot be processed
and responded immediately, but we need to process it asynchronously.
In order to support this, we introduce the 'ctrl_cmd_def', which
represents such a deferred command. It is created by the service
implementing the command using ctrl_cmd_def_make(), and a response is
later sent using ctrl_cmd_def_send().
ctrl_cmd_def_is_zombie() must be called to handle the case where
the control connection has disconnected/died between receiving the
command and sending the response.
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IPPROTO_TCP is defined in netinet/in.h. Include it and hope the
build is fixed for FreeBSD.
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which means that all control interface related functions now have
the common ctrl_ prefix.
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The control interface user now only has to register a very short
node lookup function callback. This function is optional, and only
required if hierarchical command lookup should be supported.
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libctrl doesn't need any knowledge about the type of the user-private
data that it gets passed upon setup time and includes on callbacks.
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this was moved by accident when importing the code from openbsc.
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Now we actually build the recently-imported libctrl
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... and make libctrl code use it
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