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* add osmo_mi_name(), for MI-to-string like "IMSI-123456"Neels Hofmeyr2019-01-082-0/+44
| | | | | | | | We have gsm48_mi_to_string() and osmo_bcd2str(), but still lack a function that conveniently prints both MI type and value in one function call. Related: http://people.osmocom.org/neels/mi_mi_mi.jpg Change-Id: I7798c3ef983c2e333b2b9cbffef6f366f370bd81
* tests/gsup_test.c: drop session IEs from MO-ForwardSM ErrorVadim Yanitskiy2019-01-052-10/+4
| | | | | | | | Both session state and session ID IEs were left from the initial version of Ibe325c64ae2d6c626b232533bb4cbc65fc2b5d71. There is no need to use them (as we use SM-RP-MR), so let's clean up. Change-Id: I0d910b87f15ffbc0aeeca9cb4fcbef32bdf3ef88
* LCLS: enc/dec entire parameter set instead of GCRMax2018-12-231-13/+20
| | | | | | | | | | | | | In 3GPP TS 48.008 the Global Call Reference IE is only used in HANDOVER REQUEST (§3.2.1.8) and ASSIGNMENT REQUEST (§3.2.1.1) messages which also include LCLS Config and CSC parameters. Hence, there's no point in using GCR encode/decode functions alone. Introduce gsm0808_dec_lcls() and gsm0808_enc_lcls() as trivial wrappers on top of GCR enc/dec routines which are made static. Adjust tests accordingly. Test output intentionally left unchanged. Change-Id: Icfbb2404e1a1d500243e2071173299b557369335
* tests/gsm0808: use new msgb comparison APIVadim Yanitskiy2018-12-211-12/+4
| | | | | | | | Since I3bc95f2f5ab6e3f4b502647fb3e0aaaf1f7c4cf5, we have some helpers to compare certain msgb layer to a given buffer. Let's change 'VERIFY' macro to use msgb_eq_l3_data_print(). Change-Id: Ib6be778236eff8f2153f3113f9379ecfbec9052b
* GSUP: add CHECK-IMEI messageOliver Smith2018-12-213-0/+54
| | | | | | | | | | | | | | Implement necessary messages for Procedure Check_IMEI_VLR (TS 23.018 Chapter 7.1.2.9). This lets the VLR ask the EIR to check if an IMEI is valid. In the Osmocom stack, we don't have an EIR and this request will be handled by the HLR. We will be able to store the IMEI in the HLR as side-effect (OS#2541). This is roughly based on TS 29.002 8.7.1 MAP_CHECK_IMEI service, but only implements the bare minimum required IEs (imei and imei_result). Related: OS#3733 Change-Id: I085819df0ea7f3bfeb0cabebb5fd1942a23c6155
* GSUP: add end marker to enum osmo_gsup_ieiOliver Smith2018-12-211-5/+1
| | | | | | | | | | | | | Simplify gsup_test.c by defining an end marker in gsup.h. No need to manually update the last element every time anymore. The C standard guarantees, that the end marker will have the last value plus one: "Each subsequent enumerator with no = defines its enumeration constant as the value of the constant expression obtained by adding 1 to the value of the previous enumeration constant." (From C99: 6.7.2.2 Enumeration specifiers) Change-Id: I2aab7245e209f0ebd2f33a83d4d181dd3339cb17
* Use define for key buffersMax2018-12-201-1/+4
| | | | | | Add corresponding spec. references and comments where appropriate. Change-Id: If5e2aad86eaecd8eada667b3488ba415d81c6312
* add/clean big-endian packed structs (struct_endianess.py)Neels Hofmeyr2018-12-191-0/+1
| | | | | | | | | | | | | | This is 1:1 the result of doing cd libosmocore ./contrib/struct_endianess.py git commit -a Running struct_endianess.py again should result in no changes. That means we could include such a check in the gerrit verification job now. Change-Id: Ia0b99d76932aeb03e93bd0c62d3bf025dec5f9d2
* GSUP/SMS: introduce READY-FOR-SM messageVadim Yanitskiy2018-12-183-1/+19
| | | | | | | | | | | | | | | According to 3GPP TS 29.002, section 12.4, MAP-READY-FOR-SM is used between the MSC and VLR as well as between the VLR and the HLR to indicate that a subscriber has memory available for SMS. This change replicates this service in GSUP as READY_FOR_SM_*. The only mandatory IE for this service (excluding Invoke ID) is 'Alert Reason' that is replicated by OSMO_GSUP_SM_ALERT_RSN_IE. Change-Id: Ic37f3b2114b8095cfce22977e67133b9103942e3 Related Change-Id: (docs) I549b6c8840a1e86caac09e77fb8bc5042d939e62 Related Change-Id: (TTCN) If2256607527ecfcb10285583332fb8b0515d7c78 Related: OS#3587
* GSUP/SMS: introduce MO-/MT-FORWARD-SM messagesVadim Yanitskiy2018-12-183-13/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to 3GPP TS 29.002, there are two services: - MAP-MO-FORWARD-SHORT-MESSAGE (see 12.2), - MAP-MT-FORWARD-SHORT-MESSAGE (see 12.9), which are used to forward MO/MT short messages. This change replicates both services as GSUP messages: - OSMO_GSUP_MSGT_MO_FORWARD_SM_*, - OSMO_GSUP_MSGT_MT_FORWARD_SM_*. Please note, that only the 'must-have' IEs are introduced by this change, in particular the following: - OSMO_GSUP_SM_RP_MR_IE (see note below), - OSMO_GSUP_SM_RP_DA_IE (see 7.6.8.1), - OSMO_GSUP_SM_RP_OA_IE (see 7.6.8.2), - OSMO_GSUP_SM_RP_UI_IE (see 7.6.8.4), - OSMO_GSUP_SM_RP_MMS_IE (see 7.6.8.7), - OSMO_GSUP_SM_RP_CAUSE_IE (see GSM TS 04.11, 8.2.5.4), where both SM_RP_DA and SM_RP_OA IEs basically contain a single nested TV of the following format: - T: identity type (see 'osmo_gsup_sms_sm_rp_oda_t'), - V: encoded identity itself (optional). According to GSM TS 04.11, every single message on the SM-RL has an unique message reference (see 8.2.3), that is used to link an RP-ACK or RP-ERROR message to the associated (preceding) RP-DATA or RP-SMMA message transfer attempt. In case of TCAP/MAP, this message reference is being mapped to the Invoke ID. But since GSUP has no 'Invoke ID' IE, and it is not required for other applications (other than SMS), this change introduces a special 'SM_RP_MR' IE that doesn't exist in MAP. Change-Id: Ibe325c64ae2d6c626b232533bb4cbc65fc2b5d71 Related Change-Id: (docs) Ie0150756c33c1352bc4eb49421824542c711175c Related Change-Id: (TTCN) Ibf49474a81235096c032ea21f217170f523bd94e Related: OS#3587
* LCLS: add gsm0808_create_ass2()Max2018-12-142-0/+79
| | | | | | | It allows setting additional assignment parameters explicitly. Change-Id: Id89765df3f8c12f55f73f1d7a9d90c8883eb3bba Related: OS#2487
* LCLS, TS 48.008: add GCR IE encoding/decodingMax2018-12-142-0/+81
| | | | | | | | * add functions to encode Global Call. Ref. from TS 29.205 as 3GPP TS 48.008 §3.2.2.115 information element * add corresponding tests Change-Id: I82ce0207dc8de50689a8806c6471ad7fbae6219d
* LCLS, TS 29.205: add GCR routinesMax2018-12-144-2/+123
| | | | | | | | Add functions to encode and decode Global Call Reference as per 3GPP TS 29.205 Table B 2.1.9.1 add corresponding tests. Change-Id: Iee95aa4e5c056645b6cb5667e4a067097d52dfbf Related: OS#2487
* gsm48_mi_to_string(): guard against zero length output bufferNeels Hofmeyr2018-12-101-8/+8
| | | | | | | | All successful cases already return from the switch(), so simply handle all errors below it by returning an empty string (if there is enough string buffer). Change-Id: I709ac3b9efb7b4258d8660715b10312e11b9b571
* gsm48_generate_mid(): mask out ODD flag from mi_typeNeels Hofmeyr2018-12-102-7/+5
| | | | | | | | For MI encoding, see 3GPP TS 24.008, 10.5.1.4 Mobile Identity. The 'odd' flag indicates whether the last BCD nibble is used. Of course that flag should be made sure to reflect the actual length. Change-Id: Id6e695ebf9f86b295eaa7e2c6228989256f37e68
* gsm48_mi_to_string: use osmo_bcd2str(), fix some corner casesNeels Hofmeyr2018-12-102-16/+12
| | | | | | | | | | | | | By using osmo_bcd2str(), ensure that the resulting string is always nul terminated, and always return strlen()+1 whether truncated or not. Still keep up the previous return value style, even if that isn't consistent at all. The difference between IMSI/IMEI and TMSI return values remains and is not part of this patch. Change-Id: I1b51b72a721e1cc9d69796b804ebda741ff0f36b
* add osmo_bcd2str()Neels Hofmeyr2018-12-102-0/+143
| | | | | | | | | | | | | | | | | | Add a standalone bcd-to-string conversion function with generic parameters. Add a regression test in utils_test.c. So far there is no single universal implementation that converts a BCD to a string. I could only find gsm48_mi_to_string(), which also interprets surrounding bytes, MI type and TMSI as non-BCD value. The idea is to use this function from gsm48_mi_to_string() and similar implementations in subsequent commits. Root cause: in osmo-msc, I want to have an alternative MI-to-string function for composing an FSM name, which needs the BCD part of gsm48_mi_to_string() but not the TMSI part. Change-Id: I86b09d37ceef33331c1a56046a5443127d6c6be0
* gsm0408_test: test encoding and decoding Mobile IdentityNeels Hofmeyr2018-12-102-0/+358
| | | | | | | | | | | | | | | | | | | | | | | | | | | | One would think by now we would solidly encode and decode Mobile Identities. Well, guess again. - rc is sometimes the amount of bytes written, sometimes actual strlen(). - on string truncation, rc is sometimes strlen() (assuming nul terminated), and sometimes snprintf()-style would-be strlen(). - returned string, when truncated by not enough buffer size, is sometimes nul terminated, sometimes not. - gsm48_mi_to_string() happily reads a byte from zero-length input buffer. - gsm48_mi_to_string() happily writes to zero length output buffer. - gsm48_mi_to_string() returns nonempty string for empty input. - encoding a MI type that still has the GSM_MI_ODD flag set results in encoding an even-length MI as odd-length (hence appending a stray 'F'). I am going to tweak the implementation of gsm48 mobile identity encoding / decoding, so first pinpoint the current behavior in a unit test, and show how perforated even such a seemingly trivial API can be. Change-Id: Iaae3af87f82f1a8f2e6273984c011b2813038cf7
* gsm0808: add encoder for cause codes and use itPhilipp Maier2018-12-082-7/+31
| | | | | | | | | | | | | | | | At the moment the all gsm0808 cause codes are encoded directly using the tlv API directly to put a one byte TLV field. This works ok for most situations where the cause code consists of a single byte. However, gsm0808 specifies a two byte cause code model where cause codes may be extended up to two bytes. Instead of implementing the encoding over and over and again, let's rather have an encoder function we can call. - Add an encoder function that can generate single byte and extended cause codeds and makes the length decision automatically. - Use only this function to append cause codes Change-Id: I71d58fad89502a43532f60717ca022c15c73f8bb
* send NS_POUT_UNBLOCK_ACK before signalling S_NS_UNBLOCKStefan Sperling2018-11-191-5/+5
| | | | | | | | | | | | | | | | | | | | | In gprs_ns_process_msg(), we were dispatching the S_NS_UNBLOCK signal before sending out the NS_POUT_UNBLOCK_ACK message. Signal handlers might send messages to the other side, assuming that NS is now unblocked. However, since such messages will arrive before the UNBLOCK_ACK message the receiver might discard them. This problem has been observed with our TTCN3 BSSGP_Emulation as a peer to osmo-pcu. This patch makes TTCN3 PCU TC_paging() test pass regardless of whether the test or osmo-pcu is started first. Before this patch, this test would only pass if the test was started before osmo-pcu. A remaining problem is that the test does not yet keep passing reliably unless osmo-pcu is restarted between test runs. Change-Id: I3af54a14bb6bcfa167c9a9d9f67835e7f5b9f1bb Related: OS#2890 Related: OS#2388
* Support cipher mode reject with extended causeMax2018-11-192-1/+44
| | | | | | | | | | | | | * add function to generate cipher mode reject with extended (2-byte) Cause IE * add function to get (extended) Cause value * add corresponding (extended cause) test * update existing (non-extended cause) test * use enum as a parameter for existing non-extended version to make interface more unified Change-Id: Id5509b94a18180a44f45300caaa02b843c166fa3 Related: OS#3187
* Fix deprecation warning in gsm0808_testMax2018-11-061-4/+12
| | | | | | Use gsm0808_create_layer3_2() directly instead of deprecated wrapper. Change-Id: I44772666c929dfd94d25953379cf51b371ce202c
* Update cipher reject functionMax2018-11-021-1/+1
| | | | | | | | * add note about (yet) unsupported standard feature * use enum constant instead of hex value Change-Id: I5cc5fc1ae8d5474dbc8d3385a493adf6420a3c98 Related: OS#3187
* gsm23003: Add MME domain name related helper functionsHarald Welte2018-10-282-0/+80
| | | | | | | osmo_gen_mme_group_domain(), osmo_gen_mme_group_domain() and osmo_gen_home_network_domain() Change-Id: Ia882d9db05ec0037e593aeebea21bc31adb680bb
* gsm0808: allow decoding of zero length speech codec lists.Philipp Maier2018-10-161-0/+23
| | | | | | | | | | | | | | | | | | | | | 3GPP_TS_48.008, 3.2.2.103 Speech Codec List states the following: "The length indicator (octet 2) is a binary number indicating the absolute length of the contents after the length indicator. The length depends on the number and type of Speech Codec Elements to be included. The minimum length of one Speech Codec Element is 1 octet and the maximum length is 3 octets. The maximum number of Speech Codec Elements within the Speech Codec List is not defined." This clearly refers only to the length of a single speech codec element but not on the overall list. So speech codec lists with length 0 are indeed permitted by the spec. - Remove the assertion that checks on zero length speech codec lists. Change-Id: I1eb1f4466b98bdd26d765b0e4cc690b5e89e9dd6 Related: OS#3657
* vty logging: fix crash when missing 'logging enable'Neels Hofmeyr2018-10-011-0/+3
| | | | | | | | | | | | | | | We must explicitly check the return value of osmo_log_vty2tgt(), or may run into a segfault. I wasn't aware of this and introduced numerous such cases in I36f17c131cc70ce5a1aef62fd9693097de230cd4. Reproduce: on the VTY, do not issue 'logging enable', invoke 'logging level force-all LEVEL' first. Show in logging_vty_test.vty that this situation is now again amended by telling the user that logging was not enabled. Related: OS#3611 Change-Id: Id11702d1801d6654ca5e5a51b597a0d802e2e8dd
* logging_vty: Ensure writing well-formed config filesHarald Welte2018-09-251-6/+6
| | | | | | | We want to have well-formed config files that print exactly one space per VTY/config node level, and not two. Change-Id: Ia75c7067284ea225cffe13ca71bad05a7747ae66
* gsm0808: add function to convert AMR S15-S0 to gsm0408 settingsPhilipp Maier2018-09-252-0/+190
| | | | | | | | Add a function to convert S0-S15 bits to struct gsm48_multi_rate_conf, which hold the codec settings for AMR. Change-Id: I973736273c236eee84decf15868190e339c3fed4 Related: OS#3548
* gsm0808: add function to convert amr gsm0408 setings to gsm0808Philipp Maier2018-09-192-0/+423
| | | | | | | | | | | | | | | | Add a function to convert struct gsm48_multi_rate_conf, which holds the codec settings for AMR, to S0-S15 bit representation as defined in 3GPP TS 48.008 3.2.2.49 This resurrects change-id I4e656731b16621736c7a2f4e64d9ce63b1064e98 which was reverted in I9e0d405e303ed86d23703ca6362e958dddb2f861 due to gsm0808_test failing. The test failure is fixed by properly clearing the struct gsm48_multirate_cfg prior to running tests (add memset(0)). Change-Id: Ia782e21c206c15e840226d79b4209d13658ee916 Related: OS#3548
* logging vty: add 'logging level set-all <level>'Neels Hofmeyr2018-09-161-0/+161
| | | | | | | | | Add new command to once-off set each and every category to the given log level, as discussed at length on the openbsc@ mailing list. Show that it works in logging_vty_test.vty. Change-Id: I4c3e4f786476cb813fdc0a7c64f30ee04758309d
* Revert "gsm0808: add function to convert amr gsm0408 setings to gsm0808"Neels Hofmeyr2018-09-162-421/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 2fd4fe6aa109c8df50baac465f0393a303a64dd2. As shown in https://jenkins.osmocom.org/jenkins/view/master/job/master-libosmocore/475/a2=default,a3=default,arch=amd64,label=osmocom-master-debian9/console This commit breaks gsm0808_test with: stderr: --- expout 2018-09-16 22:37:31.382280438 +0200 +++ /n/s/dev/make/libosmocore/tests/testsuite.dir/at-groups/21/stdout 2018-09-16 22:37:31.426281372 +0200 @@ -78,9 +78,9 @@ Input: m4_75= 0 smod= 0 m5_15= 0 spare= 0 - m5_90= 0 icmi= 0 + m5_90= 0 icmi= 1 m6_70= 0 nscb= 0 - m7_40= 0 ver= 0 + m7_40= 0 ver= 6 m7_95= 0 m10_2= 0 m12_2= 0 @@ -92,9 +92,9 @@ Input: m4_75= 1 smod= 0 m5_15= 0 spare= 0 - m5_90= 0 icmi= 0 + m5_90= 0 icmi= 1 m6_70= 0 nscb= 0 - m7_40= 0 ver= 0 + m7_40= 0 ver= 6 m7_95= 0 m10_2= 0 m12_2= 0 @@ -106,9 +106,9 @@ Input: m4_75= 0 smod= 0 m5_15= 1 spare= 0 - m5_90= 0 icmi= 0 + m5_90= 0 icmi= 1 [...] Change-Id: I9e0d405e303ed86d23703ca6362e958dddb2f861
* gsm0808: add function to convert amr gsm0408 setings to gsm0808Philipp Maier2018-09-142-0/+421
| | | | | | | | | Add a function to convert struct gsm48_multi_rate_conf, which holds the codec settings for AMR, to S0-S15 bit representation as defined in 3GPP TS 48.008 3.2.2.49 Change-Id: I4e656731b16621736c7a2f4e64d9ce63b1064e98 Related: OS#3548
* logging vty: deprecate 'all', introduce 'force-all'Neels Hofmeyr2018-09-131-14/+134
| | | | | | | | | | | | | | | Add 'logging level force-all <level>' and 'no logging level force-all' as new names for 'logging level all <level>' and 'logging level all everything'. Resurrect the functionality of 'logging level all everything' -- even if it is still deprecated because the name is confusing, it is now just an alias for 'no logging level force-all'. Show in logging_vty_test.vty that we can now again lift the global logging clamp, both with the new commands as well as with the deprecated ones. Also show that 'force-all' is written back properly, if set. Change-Id: I36f17c131cc70ce5a1aef62fd9693097de230cd4
* logging vty: deprecate the 'everything' keywordNeels Hofmeyr2018-09-131-17/+13
| | | | | | | | | | | | | | | | The 'logging level all everything' has not had an effect for some time now. The plan is to bring back its old functionality, but to keep it deprecated and rather define a less confusing name. * Deprecate 'everything'. * Do not write 'everything' during 'write file' or 'show running-config', which we curiously still do until now. BTW, the reason why we need to compose a complete list of categories for the deprecated 'everything' command is explained in detail in the commit log for I3b083f27e3d751ccec258880ae7676e9af959a63 Change-Id: Ib75fedb0572570a61bb34ee729a2af86cf5f16da
* logging vty: add VTY transcript testNeels Hofmeyr2018-09-123-1/+515
| | | | | | | | | | | | | | | | | | | | | | | | I am setting out to refactor various details about logging. To show the effect, I am first adding this new test to illustrate the exact effects on the various osmo programs. Add logging_vty_test.c as a standalone program that simply defines a few logging categories and opens a telnet vty to play with. Add logging_vty_test.vty, as an osmo_verify_transcript_vty.py test script. Add --enable-external-tests to configure.ac, to enable running logging_vty_test.vty during 'make check'. Also allow running 'make vty-test' without the need to first configure with --enable-external-tests (a flexibility I've missed many times over in the other osmo source trees). Add a Makefile.am stub for external CTRL tests, basically a copy-paste from osmo-msc.git. I doubt that libosmocore will get python driven CTRL interface testing any time soon, but if so we will know to not run it concurrently. Change-Id: I948e832a33131f8eab98651d6010ceb0ccbc9a9c
* fix tests linking: don't use system installed libsNeels Hofmeyr2018-09-111-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not link against the system-wide installed libosmo* libs when building the regression test programs. Always use the locally built ones. Linking some libosmo libraries causes libtool to pull in other libosmo libs even though they were not explicitly named. For example, ctrl_test explicitly links libosmoctrl, but this also has dependencies to libosmovty and libosmogsm: ldd src/ctrl/.libs/libosmoctrl.so | grep osmo libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007f26c26d4000) libosmogsm.so.10 => /usr/local/lib/libosmogsm.so.10 (0x00007f26c22bb000) libosmovty.so.4 => /usr/local/lib/libosmovty.so.4 (0x00007f26c2171000) If we omit explicit LDADD of these dependencies in the Makefile.am, libtool will take the first canonical place to find them, which may just be the already installed older versions of the same libs, which may or may not be compatible with the current build. In any case, it is never intended to link installed libs. All library dependencies are listed by this quick script: cd libosmocore for l in $(find . -name "*.so") ; do echo; echo "$l"; ldd $l | grep libosmo; done ./.libs/libosmocore.so ./coding/.libs/libosmocoding.so libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007f25fc3c2000) libosmogsm.so.10 => /usr/local/lib/libosmogsm.so.10 (0x00007f25fbfa9000) libosmocodec.so.0 => /usr/local/lib/libosmocodec.so.0 (0x00007f25fbf9b000) ./codec/.libs/libosmocodec.so libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007fb4c900d000) ./ctrl/.libs/libosmoctrl.so libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007f5df5129000) libosmogsm.so.10 => /usr/local/lib/libosmogsm.so.10 (0x00007f5df4d10000) libosmovty.so.4 => /usr/local/lib/libosmovty.so.4 (0x00007f5df4bc6000) ./gb/.libs/libosmogb.so libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007f788e536000) libosmovty.so.4 => /usr/local/lib/libosmovty.so.4 (0x00007f788e3ec000) libosmogsm.so.10 => /usr/local/lib/libosmogsm.so.10 (0x00007f788dfd3000) ./vty/.libs/libosmovty.so libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007f3b7ed21000) ./gsm/.libs/libosmogsm.so libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007fc69472e000) ./sim/.libs/libosmosim.so libosmocore.so.11 => /usr/local/lib/libosmocore.so.11 (0x00007f2f6412d000) libosmogsm.so.10 => /usr/local/lib/libosmogsm.so.10 (0x00007f2f63d14000) Add all explicit linking of all required library dependencies in all regression test programs, as shown by above listing. Example for reproducing a problem: In libosmocore.a, introduce a new function, and call that from libosmovty code. For example, I made loglevel_strs non-static in logging.c, and used that in logging_vty.c. Build and install this in a place where libtool can find it. Then go back to before this change and rebuild. You will see that linking ctrl_test (before this patch) then complains about libosmovty requiring the loglevel_strs symbol which it cannot find in libosmocore.so. Change-Id: Id084e6e6efd25cd62b1bd7a4fc7c5985c39130c6
* add osmo_str_tolower() and _toupper() with testNeels Hofmeyr2018-09-072-0/+230
| | | | | | | | | | | | | | | | | | | | | | | | | We already have osmo_str2lower() and osmo_str2upper(), but these lack: * proper destination buffer bounds checking, * ability to call directly as printf() argument. Deprecate osmo_str2upper() and osmo_str2lower() because of missing bounds checking. Introduce osmo_str_tolower_buf(), osmo_str_toupper_buf() to provide bounds-safe conversion, also able to safely convert a buffer in-place. Introduce osmo_str_tolower(), osmo_str_toupper() that call the above _buf() equivalents using a static buffer[128] and returning the resulting string directly, convenient for direct printing. Possibly truncated but always safe. Add unit tests to utils_test.c. Replace all libosmocore uses of now deprecated osmo_str2lower(). Naming: the ctype.h API is called tolower() and toupper(), so just prepend 'osmo_str_' and don't separate 'to_lower'. Change-Id: Ib0ee1206b9f31d7ba25c31f8008119ac55440797
* Deprecate ipa_ccm_idtag_parse() with ipa_ccm_id_{get,resp}_parse()Harald Welte2018-08-012-4/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the past, the function ipa_ccm_idtag_parse() was used to parse the payload of IPA CCM ID RESP packets. However, the function was based on a possible misunderstanding of the message encoding, and callers actually counted the first (upper) length nibble as part of the header and passed a pointer to the second (lower) length nibble of the first TLV into this function. As such, it was unfixable, and had to be replaced with a new function called ipa_ccm_id_resp_parse(). At the same time, we also add ipa_ccm_id_get_parse() to parse the slightly different format of the IPA CCM ID GET payload. We can never be 100% sure what is "correct", as our understanding of the protocol is entirely based on protocol analysis, without any official documentation available. This patch also introduces unit test coverage for both of the new functions. Revert "ipa: Add libosmogsm.map entry for ipa_ccm_idtag_parse_off" This reverts commit 7f31c90b80c08fbfe2d84d70d397402fdb38b94c. Revert "ipa: Properly parse LV stream of a ID_GET request" This reverts commit f558ed4bb9c0f00997b8f97c2b251a574c1a64c4. It introduced a function/behavior that was not originally intended: The parse of IPA CCM ID GET (8bit length followed by 1 byte tag and variable-length payload) instead of the IPA CCM ID RESP (16bit length followed by 1 byte tag and variable-length payload). Change-Id: I1834d90fbcdbfcb05f5b8cfe39bfe9543737ef8f
* cosmetic: More context / naming / comment for test_idtag_parsing()Harald Welte2018-07-311-2/+3
| | | | Change-Id: I1ebeba2067549e0dd1541fa84715d44321ff3b43
* import oap_client_test from osmo-sgsnHarald Welte2018-07-306-39/+322
| | | | | | | As oap_client has moved from osmo-sgsn to libosmogsm, it is o