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2014-01-15rlc: Use an enum for the state array instead of charsDaniel Willmann1-3/+3
gprs_rlc_bsn_state is now used to hold the ACK state of sent/received rlc packets.
2014-01-15rlc/tbf: Move v_b into DL windowDaniel Willmann1-3/+2
Move functions resend_needed(), mark_for_resend(), update(), move_window(), state(), count_unacked() out of v_b directly into the UL window and provide a function get_state in v_b to access the v_b elements.
2014-01-15rlc/tbf: Add function receive_bsn that updates v_r, v_q, v_nDaniel Willmann1-27/+9
We don't need to expose the mecanics of updating the variables to the outside.
2014-01-15rlc/tbf: Move v_n into gprs_rlc_ul_window and adapt the testsDaniel Willmann1-40/+39
v_n is part of the UL window handling so move it inside the ul_window
2014-01-15alloc: Update the test result now that everything is back to working againHolger Hans Peter Freyther1-0/+7650
2014-01-15misc: Allow to cross-execute the tests using qemuHolger Hans Peter Freyther1-4/+4
When cross-compiling osmo-bts/osmo-pcu one can not easily execute the testsuite. By adding the OSMO_QEMU variable in front of the normal execution we can execute the tests. This should work for native and cross builds. $ OSMO_QEMU="qemu-arm -L /opt/poky/1.1.2/sysroots/armv5te-poky-linux-gnueabi/" make check
2014-01-15alloc/test: Add a crazy test that tests each possible combinationHolger Hans Peter Freyther1-0/+130
Make a crazy test that will test each possible PDCH configuration and MS Class and verify that the UL/DL assignments work and that they are on the same first_common_ts.
2014-01-15alloc/test: Go through all possible ms_classes for the allocationHolger Hans Peter Freyther2-9/+955
Generate results for all possible classes.
2014-01-15alloc/tests: Create an allocation test for various scenariousHolger Hans Peter Freyther2-0/+173
The allocation in the TBF/BTS code is quite complex. In parts this is due the assignment and requests occuring under differen circumstances. Attempt to re-create the commono scenarios. Remove the bogus msclass check in gprs_rlcmac_tbf::update as the allocation code will check the ms class anyway.
2013-12-12test: Remove the side-effect from the assertionHolger Hans Peter Freyther1-1/+2
Coverity complains about this code as it doesn't know that the OSMO_ASSERT is always on. But it is good practice to now have the side-effect in here. Fixes: Coverity CID 1080724
2013-12-12tests/TypesTest: Check rbb handling in DLDaniel Willmann2-0/+37
2013-12-12tests/TypesTest: Ensure that extract_rbb(encode_rbb(x)) == xDaniel Willmann1-0/+11
2013-12-12tests/TypesTest: Print the result of Encoding::encode_rbb()Daniel Willmann2-0/+17
2013-12-12tests/TypesTest: Add OSMO_ASSERT_STR_EQ which prints out the parametersDaniel Willmann1-6/+15
Use it to compare rbb
2013-12-12tests/TypesTest: Test ssn() and update_rbb() uplink window methods in TypesTestDaniel Willmann1-0/+27
Test that ssn and rbb are updated correctly.
2013-12-04rlc: Create a testcase for the uplink windowHolger Hans Peter Freyther1-1/+99
2013-11-26rlc: Add a basic test for the DL Window and moving the windowHolger Hans Peter Freyther1-0/+49
2013-11-26rlc: Test the basic of the gprs_rlc_v_n code for remembering the stateHolger Hans Peter Freyther1-0/+20
2013-11-23rlc: Create a basic test that mark/is is talking about the sameHolger Hans Peter Freyther1-0/+27
2013-11-21rlc: Add a simple test for the RLC data structure for the initHolger Hans Peter Freyther1-0/+15
2013-11-21types: Add a simple testcase for basic types and fix the LLC codeHolger Hans Peter Freyther5-2/+112
* Make append_data, remaining_space and fits_in_current.. work on m_length and not the index. This ways things can't overflow. * The current API consumer was moving the m_index so it should have worked okay.
2013-10-30tbf: Update the timing advance for the new tlli based on the old oneHolger Hans Peter Freyther1-0/+2
2013-10-30tbf: Learn and propagate the TLLI changes due a new P-TMSIHolger Hans Peter Freyther5-2/+123
During a routing area update a new P-TMSI was assigned. During the PACKET CONTROL ACK on the DL we notice the change of TLLI but didn't propagate this. This means that a Routing Area Update Complete was only sent after a new RACH request. Addresses: <0007> gprs_rlcmac_meas.cpp:103 UL RSSI of TLLI=0x88661bc6: -67 dBm <0002> bts.cpp:945 Got ACK, but UL TBF is gone TLLI=0xe512eba3 <0007> gprs_rlcmac_meas.cpp:158 DL packet loss of IMSI=274080000004765 / TLLI=0xe512eba3: 0% <0002> tbf.cpp:668 TBF TFI=0 TLLI=0x88661bc6 T3169 timeout during transsmission <0002> tbf.cpp:690 - Assignment was on PACCH <0002> tbf.cpp:694 - No uplink data received yet
2013-10-30tbf/bts: Move the tfi_find_free into the btsHolger Hans Peter Freyther1-3/+3
2013-10-30bts/tbf: Move the lists into the BTS and do the look-up from the BTSHolger Hans Peter Freyther1-10/+12
The list belongs to the BTS. This makes cleaning this up more easy and establishes a hierachy of resources that start from the BTS. The debug_diagram code is now broken.
2013-10-30pdch: Move enable/disable into the PDCH codeHolger Hans Peter Freyther1-2/+2
When a PDCH is disabled all resources should be freed. This is currently not possible as the PDCH does not know where it belongs to. On top of that the list (and other resources) should be properly initialized on construction so that disable() is idempotent and does not check if it was disabled. During the re-factoring I noticed that during a sysmobts re-start some resources are not freed. I left a warning in the code to resolve this issue later.
2013-10-30bts: Introduce a singleton for the BTS and use it in the codeHolger Hans Peter Freyther2-16/+4
Compared to the previous code there will be a branch to get the global pointer so the code will be slightly slower than the previous version but it allows us to start creating objects but still use the code from C. It is best approach I have found so far. One downside of C++ is that by default talloc will not be used (unless we override the new operator to use talloc. Right now we need to memset the C data structure by hand. The benefit of enforcing a better structure should is more important though.
2013-10-30bts: Move struct gprs_rlcmac_bts and other structs into a bts.hHolger Hans Peter Freyther1-0/+1
Begin to make the BTS a real C++ object with real responsibilities. The biggest issue will be the pcu_vty.c that might not like C++ at all.
2013-10-30alloc: Add very basic test case for the alloc_a algorithmHolger Hans Peter Freyther5-2/+145
2013-09-04emu: Add a crash re-producer for the SGSN (and the concept of tests)Holger Hans Peter Freyther7-14/+332
Introduce the concept of tests that will be ran one after the other. This new test will send static message that will lead to the opening of a PDP context. At this point one should use ping with a large packet size and suspend/stop the emulator. Once the NS connection is considered dead the SGSN will crash with a double free. Reproduce: 0.) Add IMSI 901700000003094 to the ACL 1.) Stop/Suspend the emulation process so the NS Alive times out 2.) Use ping IP -s 2048 This will create a double free... #4 0xb7bb2646 in talloc_abort_double_free () at talloc.c:175 #5 0xb7bbd41a in talloc_chunk_from_ptr (ptr=0x8091208) at talloc.c:190 #6 _talloc_free (ptr=0x8091208) at talloc.c:517 #7 talloc_free (ptr=ptr@entry=0x8091208) at talloc.c:990 #8 0xb7bb319b in msgb_free (m=m@entry=0x8091208) at msgb.c:72 #9 0x0804db54 in sndcp_send_ud_frag (fs=0xbfffcc6c) at gprs_sndcp.c:423 #10 sndcp_unitdata_req (msg=msg@entry=0x808eed8, lle=0x808fbc8, nsapi=5 '\005', mmcontext=mmcontext@entry=0x80903e8) at gprs_sndcp.c:471
2013-09-04emu: Use OpenBSC code to decode the LLC and add assertionsHolger Hans Peter Freyther5-1/+328
Use the OpenBSC SGSN code to parse the LLC data and look into the data we receive. Add assertions to verify the the sequence number is increasing.
2013-09-04emu: Send a static GPRS ATTACH request and wait for the reply.Holger Hans Peter Freyther3-2/+61
This will send a static message. It will trigger the GMM code on the SGSN and might ask us for the IMEI/IMSI or send us an accept. As we are not replying at all the SGSN needs to send new requests and we can observe if the sequence number is increasing like it should.
2013-09-04emu: Create an app that allows to communicate with a SGSNHolger Hans Peter Freyther2-0/+123
This code can open a BSSGP connection toward a SGSN and will inititate the unblocking. It does not send any user data.
2013-08-03tests: Fix the expected result (re-add whitespace)Holger Hans Peter Freyther1-2/+2
As a last minute change I probably ran git rebase --whitespace=fix on the patch set and broke the test result. Update the expected file and tests should pass.
2013-08-02tests: Move the RLCMACTest into the test directory and setup autotestHolger Hans Peter Freyther5-1/+335
2013-08-02tests: Create tests directory and move the VTY testing into thereHolger Hans Peter Freyther1-0/+16