Commit Graph

676 Commits

Author SHA1 Message Date
Pau Espin 01e0d3e7fd Drop use of log_set_print_filename() API inside libosmocore
Let's use log_set_print_filename2() API instead, which has less ackward
behavior implications like changing the print status of category-hex.

Related: OS#5034
Change-Id: Ifc78e1dcba5baf0b41f6ccbbbd1e3f06552d73da
2021-02-20 17:13:58 +00:00
Pau Espin 690b661fbc tests: Set print_category values explicitly
This will alow easily changing default values for print_category vs
print_category_hex later.

In any case, every test relying on logging output validation should
always explicitly state the config to avoid issues in the future if
default values change.

Related: OS#5034
Change-Id: If29b40557d5c2bcda04b964f344070bad58d8f28
2021-02-20 17:13:58 +00:00
Pau Espin 662d10dcda logging: Allow prefixing thread ID to each log line
Related: OS#5032
Change-Id: I38fc93ab0182b4edbd639c7ed0f31ce51964ee18
2021-02-19 11:21:46 +00:00
Alexander Couzens 7bb39e368d gprs_ns2: ensure no duplicate UDP NSVC can be created
Change-Id: I58a95817e2730bbbaa851a43a5b072d1de2db037
2021-02-19 10:41:50 +00:00
Alexander Couzens d8a8d98053 gprs_ns2: implement a simple load sharing for UDP
Implement the load sharing based on modulo of the LSP. As long the gprs_ns2 doesn't
support the resource distribution function (48.016 § 4.4a) this simple
approach is good enought.

Fixes: OS#4836
Change-Id: I8c2fe5d647694886ac600470fca6ea5d5d210a85
2021-02-19 10:41:50 +00:00
Alexander Couzens bf5d0dbdec gprs_ns2_vty: add optional argument signalling and data weights to `nsvc udp`
A static configured UDP NSVC can have signalling and data weights

Related: SYS#5354
Change-Id: Id363937c64e786c55e3136401ebdb44052415e0f
2021-02-19 10:41:50 +00:00
Alexander Couzens 6b9d232421 gprs_ns2: rework IP-SNS binds
Introduce a `ip-sns-bind BINDID` vty command within a `nse` vty object.
The ip-sns-bind defines the binds which will be used by the dynamic
configuration with IP-SNS.
This is only the first part which only uses the binds when doing a
new SNS configuration.
The outgoing add procedure will be supported in a later patch
when the SNS fsm supports outgoing procedures.

This is a behaviour change of the API and must be synchronized with
the osmo-pcu. Otherwise SNS won't work with osmo-pcu.

Related: SYS#5354
Change-Id: I9ab8092bf286e7d90e92f5702a5404425e959c84
2021-02-19 10:41:50 +00:00
Pau Espin Pedrol d7a209bce9 gsm: Introduce API osmo_gsm48_rest_octets_si13_decode
Related: SYS#5358
Change-Id: I74fb0a3afc1ac4aadbfc609b882d929401f790eb
2021-02-18 00:54:33 +00:00
Alexander Couzens 4f1128fcbd gprs_ns2: inform the NS user (BSSGP) about the MTU of a NSE
The BSSGP layer needs to know the MTU of the NS UNIDATA payload.
The MTU can be 0 if the NSE doesn't contain any NSVC.
Every status indication will contain the mtu value.
The MTU in the status indication contains the maximum transfer
unit of a BSSGP message. From NS side the maximum SDU.

Related: OS#4889
Change-Id: I5016b295db6185ec131d83089cf6c806e34ef1b6
2021-02-16 16:29:47 +01:00
Pau Espin 524898504a gsm: Fix encoding of gsm0808_cell_id_list2 with CGI-PS types
CGI-PS type doesn't exist in GSM 08.08 Cell Id lists. That type of cell
id is osmocom-specific and used internally. In here CGI-PS is
automatically converted to CGI (since the later is an extension of this
one).

The encode/decode_cell_id_u are left intact (comment added) since those
can still be used (and are used by RIM code) to encode/decode TS 48.018
Cell Identifiers.

Related: SYS#4909
Change-Id: Id74f4577c397c1ba696f00395858311bd82cb2c8
2021-02-15 16:42:46 +01:00
Pau Espin 1bd495a787 comsetic: gsm0808_test: Fix trailing whitespace
Change-Id: I7f48e292fefe555939129f4000303e630a12cc50
2021-02-15 16:16:41 +01:00
Daniel Willmann ae9899561c tests/gb: Add more complex osmo-ns-dummy.cfg
write config will not print out any configuration for bind/nse unless we
configure some. This way we can catch more issues with incompatible
configs such as https://gerrit.osmocom.org/c/libosmocore/+/22878

Change-Id: Iad422ee013c82a6cb96af8ce4eb3af8b0936a4c9
Related: OS#4887
2021-02-12 12:50:02 +01:00
Alexander Couzens c470476923 gprs_ns2: add signalling & data weights for UDP binds
Allow to assign a signalling and data weight to UDP binds.
Those weights will be used when doing dynamic configuration over
IP-SNS.
This is only the first part which only uses the assigned weights
when doing a new SNS configuration.
The outgoing change weight procedure will be supported in a later patch
when the SNS fsm supports outgoing procedures.

Related: SYS#5354
Change-Id: I5133e4229377d44772a9af28628a2bc420fea34b
2021-02-12 03:34:32 +01:00
Vadim Yanitskiy 943133cad8 gsm_7bit_encode_n(): fix integer overflow in gsm_septets2octets()
Using 'uint8_t' for the length argument is definitely a bad idea.
Because of this, packing more than 255 septets would not work as
expected.  Deprecate the old function and use 'size_t' instead.

Change-Id: Ib1aac538afeb0a5c76a1df472d555139a496e12e
2021-02-01 17:47:54 +00:00
Vadim Yanitskiy 44ac4f6c92 gsm_7bit_encode_n(): test encoding of more than 250 septets
As can be seen, this unit test reveals problems with encoding
of more than 250 septets using gsm_7bit_encode_n().  The problem
is that some API functions use type 'uint8_t' for the length, so
we basically suffer from integer overflows.

Change-Id: I723300578d5ab0c7b94cf49c14d962b2dbf47740
2021-02-01 16:14:55 +00:00
Harald Welte c3aa8f903a ns2: Move to one common/shared ns2_bind_alloc()
Avoid code duplication between three different drivers by sharing
the "core" of the bind initialization in a new, shared ns2_bind_alloc().

Change-Id: I535fc68e94fcd695de827dd922706adc1c5a2cb7
2021-02-01 09:39:29 +01:00
Alexander Couzens 138b96f21c gprs_ns2: refactor: ensure all enums have GPRS_NS2_
All public enum should have the prefix GPRS_NS2_.

API change which must be synchronized with osmo-pcu,
osmo-gbproxy, osmo-sgsn.

Change-Id: I548ff12f7277cbb7e1a630a3dc02b738ce89be72
2021-01-28 11:56:37 +00:00
Alexander Couzens 8dfc24cb47 gprs_ns2: drop prefix of all internal exposed function
All functions which are exposed by gprs_ns2_internal.h should not contain
the public prefix gprs_. Internal function should only contain ns2_ prefix.

Change-Id: Icecc5a918902cd10efac72bbac20780d39aab272
2021-01-25 16:09:23 +01:00
Alexander Couzens 8f215c9fc9 tests: gprs_ns2: add unitdata unit test
test sending unitdata over a alive and blocked NSVC.

Change-Id: I2c44b711d004d2ca08e05d4f54519ad8dbd77c27
2021-01-25 15:28:47 +01:00
Oliver Smith 55934c4754 tests/*: fix control reaches end of non-void func
Prepare to set -std=gnu89 in a future commit, which will cause gcc warn
about "control reaches end of non-void function" in main().

Change-Id: I7c33cac30e5859060f083813d8433011f5eaf0d0
2021-01-21 12:13:42 +00:00
Harald Welte 2846ee2624 gprs_ns2_test: Fix compilation on Debian 8
[  352s] gb/gprs_ns2_test.c: In function 'test_block_unblock_nsvc':
[  352s] gb/gprs_ns2_test.c:200:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
[  352s]   for (int i=0; i<2; i++) {
[  352s]   ^
[  352s] gb/gprs_ns2_test.c:200:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code

Change-Id: I72310886bef4db635078b75715c9d98ee45391cc
2021-01-21 10:23:20 +01:00
Alexander Couzens 47afc424c3 gprs_ns2: implement BLOCK/UNBLOCK of a NSVC by vty
The vty should be able to block or unblock a specific NSVC.
Further more this case is special for the UNITDATA as those
can be still received until the other side response to the BLOCK PDU.

Related: OS#4939
Change-Id: Ic0ce3c5fabc8644cc1ee71a8f6dd783fadf7b84d
2021-01-19 19:42:03 +01:00
Alexander Couzens aca31b8b2d test: gprs_ns2: free the nsi after each test
Change-Id: I700da48d7afe6b1a81484a0725faf0c56073446d
2021-01-19 15:06:35 +00:00
Alexander Couzens af5bfebcf3 test: gprs_ns2: replace free_bind() with clear_pdus()
free_bind() should free up all driver specific state but NOT
the bind itself. As the only thing left is clearing the pdus
rename the function to it.

Change-Id: Iac506734c93aca8be045ac13788d07d1bdc78eb3
2021-01-19 15:06:35 +00:00
Philipp Maier 7450f77f57 bssgp_rim: move bssgp_parse_rim_ri and bssgp_create_rim_ri to gprs_bssgp_rim
The function bssgp_parse_rim_ri() and bssgp_create_rim_ri() are located
in gprs_bssgp.c, since there is now a gprs_bssgp_rim.c module it makes
more sense to put them there. Also adjust the code a bit so that its
more intuitive to read.

Change-Id: Icd667f41d5735de56cd9fb257670337c679dd258
Related: SYS#5103
2021-01-18 21:11:44 +01:00
Philipp Maier 9828d28fc3 bssgp_rim: add encoder/decoder for NACC related RIM containers
BSSGP RIM uses a number of nested containers to signal RIM application
specific payload information in a generic way. Lets add the container
structurs required for NACC.

Depends: libosmocore If48f412c32e8e5a3e604a78d12b74787a4786374
Change-Id: Ibbc7fd67658e3040c12abb5706fe9d1f31894352
Related: SYS#5103
2021-01-18 21:11:44 +01:00
Harald Welte 603f404e41 gprs_ns2: Give NS-VC FSMs a proper name/identifier
Log output without a proper identifier is mostly useless.

Change-Id: Id9d5b0684584d03685900c6298fe70246793de14
Closes: OS#4876
2021-01-18 14:07:48 +00:00
Alexander Couzens e19b7966e2 test: gprs_ns2: don't leak the talloc context
Makes the address sanitizer happy

Change-Id: Ibf926d8db88cdb403d29de5e666dfb71eefc7b72
2021-01-18 10:47:47 +01:00
Harald Welte efdd641c29 tlv_parser: Fix various out-of-bounds accesses
The libosmocore TLV parser had a number of insufficient bounds checks
leading to reads beyond the end of the respective input buffer.

This patch
* adds proper out-of-bounds checks to all TLV types
* simplifies some of the existing checks
* introduces test cases to test all the corner cases
  where either TAG, or length, or value are not fully contained
  in the input buffer.

Thanks to Ilja Van Sprundel for reporting these problems.

Change-Id: I98b02c914c9e3ecf56050af846292aa6979d7508
2021-01-12 21:11:20 +01:00
Harald Welte e4cd267ab1 Add inter-thread queue
This adds an inter-thread queue "it_q" to libosmocore. With it_q,
one can perform thread-safe enqueing of messages to another thread,
who will receive the related messages triggered via an eventfd
handled in the usual libosmocore select loop abstraction.

Change-Id: Ie7d0c5fec715a2a577fae014b0b8a0e9c38418ef
2021-01-06 00:22:13 +01:00
Alexander Couzens 1c8785dd81 gprs_ns2: set transfer cap in NS Status primitive
Related: SYS#5153 OS#4835
Change-Id: Ia1046db9e0d50855bff9de670b612ffc57af9995
2021-01-05 14:24:03 +00:00
Alexander Couzens 5a3eb5d99a gprs_ns2: call python vty tests
Also checks vty docs

Change-Id: Ia8b77ae5bc3fed835dd1fc2cce0acbc41f199d54
2021-01-01 22:49:23 +01:00
Alexander Couzens c0d02cc163 utils: add osmo-ns-dummy
A dummy client to do integration tests of the ns2 layer.
It drop all unit data. But allows vty tests.

Change-Id: I127c178426bc1a3da8de251740eda93853030d6d
2021-01-01 22:46:57 +01:00
Philipp Maier bd10c21cc4 gprs_bssgp: add IE parser/generator for RIM Routing Information
The RIM Routing Information IE (see also 3GPP TS 48.018, section
11.3.70) is used to control the flow of BSSGP rim messages at the SGSN.

Change-Id: I6f88a9aeeb50a612d32e9efd23040c9740bc4f11
Related: SYS#5103
2020-12-16 21:58:04 +01:00
Harald Welte fde19ed579 logging: Introduce DLBSSGP logging constant
Historically, BSSGP uses a non-constant, user-configurable integer
varieable for the logging sub-system.  Let's replace this with a
statically-allocated library logging constant.

This is required if we want to use the subsystem number in e.g.
static initialized for osmo_fsm.log_subsys.

Change-Id: I506190aae9217c0956e4b5764d1a0c0772268e93
2020-12-09 22:50:01 +01:00
Pau Espin e81c2f44f3 tests: Fix tdef_test on 32bit platforms
100 minutes = 6000000000 microseconds was too big to be stored in an
unsigned long in a 32bit platform, making the test print 4294967295
instead. Let's set a smaller value to have the test happy on 32 bits.

Change-Id: Ic0d009f00a69cee59f2d3fc0b40ecdc97d81c75c
2020-11-15 18:01:51 +01:00
Pau Espin 2299cb52a3 Revert "tests: Fix tdef_test on 32bit platforms"
This was not the issue, see next commit fixing the correct issue.

This reverts commit af10e48c1b.

Change-Id: Ifa1057ac55fcacdeb55ecdaac1ac3ddcca7d6d65
2020-11-15 18:01:45 +01:00
Philipp Maier e36be56fc8 gsm_04_08: add parser for Mobile Station Classmark 3
3GPP TS 24.008 section 10.5.1.7 describes a Mobile Station Classmark 3
IE, which is encoded as CSN.1 struct. This means that it can not be
parsed by just casting a memory location to a struct pointer, so lets
add a parser to parse the CM3 IE.

This is fixed version of Ic8b2bfd00330235f5bed00771e421588abfaac1f,
which got reverted because it used the keyword "class" as struct member,
which lead into problems with c++ builds. This is now fixed.

Change-Id: Id8732551b33616227609cd6fcf6c3133751a89eb
Related: OS#4796 SYS#5114
2020-11-12 15:55:31 +00:00
Pau Espin af10e48c1b tests: Fix tdef_test on 32bit platforms
60 seconds = 6000000000 microseconds was too big to be stored in an
unsigned long in a 32bit platform, making the test print 4294967295
instead. Let's set a smaller value to have the test happy on 32 bits.

Change-Id: I97d53f6b7b410cef4b3f3fbe3162626fcdd7b05a
2020-11-12 14:00:10 +01:00
Harald Welte c2118940aa Revert "gsm_04_08: add parser for Mobile Station Classmark 3"
This reverts commit a4939dc846,
which caused massive build failures in C++ programs like osmo-pcu
- unsurprisingly, as it calls a struct member "class", which is a
reserved keyword in C++.

Change-Id: Ia43e56385e7b580f492c560aee8ff8b1e8a0e1d8
2020-11-11 23:11:15 +01:00
Pau Espin 1b75e4bbd1 tdef: Introduce OSMO_TDEF_US unit
Some applications may need submillisecond timers, such as those
interacting with modbus serial lines (RS-485, RTU), which require
timers of values around 1.5 char-time (T1.5), where a data char is
composed of 11 bits sent on the line: 1 start bit, 8 data bits,
1 stop bit, and and parity bit (or 2nd stop bits if no parity).

For instance, for a baudrate of 9600:
1.5 * 11 / 9600 = 1.718 ms = 1718 us

So having a granularity of MS is not enough here.

Change-Id: I71848d7c1ee0649929ce07680ee7320bb2a42f0e
2020-11-11 20:08:26 +00:00
Philipp Maier a4939dc846 gsm_04_08: add parser for Mobile Station Classmark 3
3GPP TS 24.008 section 10.5.1.7 describes a Mobile Station Classmark 3
IE, which is encoded as CSN.1 struct. This means that it can not be
parsed by just casting a memory location to a struct pointer, so lets
add a parser to parse the CM3 IE.

Change-Id: Ic8b2bfd00330235f5bed00771e421588abfaac1f
Related: OS#4796 SYS#5114
2020-11-10 16:36:54 +01:00
Vadim Yanitskiy 72b90883f9 vty: introduce the expert mode and a command to enable it
Some VTY commands are intentionally hidden, e.g. because they might
by relatively dangerous if used in production operation.  We equip
such commands with a special attribute - CMD_ATTR_HIDDEN.

The problem is that neiter they appear in the XML VTY reference,
nor in the online VTY help, so it's a bit tricky to invoke them.
This change introduces so-called 'expert' mode, in which hidden
(but not deprecated) commands are getting visible.

In the (telnet) VTY session, this mode can be activated by passing
an additional argument to well-known 'enable' command:

  OsmoApp> enable ?
    [expert-mode]  Enable the expert mode (show hidden commands)
  OsmoApp> enable expert-mode
  OsmoApp#

so then hidden commands will appear together with all the other
commands.  They will be marked with a special '^' flag:

  OsmoApp# list with-flags
    ^ ...  foo-hidden [expert-mode]
    . ...  foo-regular-one
    ! ...  foo-immediate
    ^ u..  app-hidden-unbelievable

For the XML reference generation, additional API needs to be
introduced.  This will be implemented in subsequent patches.

Change-Id: Ie69c2a19b22fb31d7bd7f6412f0aeac86ea5048f
Related: SYS#4910
2020-10-21 06:27:48 +07:00
Pau Espin 86160ace73 gsm: Fix make distcheck with parallel make
Change-Id: I0bab4cfbc82d2b0aa7bd07769000ab8e4968a00b
2020-10-13 08:24:03 +00:00
Alexander Couzens 80788fac9e add osmo_sockaddr_to_str_buf/osmo_sockaddr_to_str
Add helper to format osmo_sockaddr into a string.

Change-Id: I917f25ebd1239eae5855d973ced15b93731e33a0
2020-10-12 15:13:43 +00:00
Harald Welte f445150c57 bssmap_le/bsslap tests: We must use %td for ptrdiff_t printing
Otherwise we get (valid!) format string warnings like these on 32bit
targets:

[  372s] bssmap_le/bssmap_le_test.c: In function 'test_bssmap_le_enc_dec':
[  372s] bssmap_le/bssmap_le_test.c:141:15: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'int' [-Wformat=]
[  372s]     printf("[%ld] %s: ERROR: failed to encode pdu\n", (pdu - bssmap_le_test_pdus),
[  372s]                ^

Closes: OS#4786
Change-Id: Ib1c16b8adc5c8c0a2b418db51d12089f9b49a844
2020-10-09 09:55:53 +02:00
Philipp Maier a5218ea9b3 command: add library command attribute for libosmo-abis
Change-Id: I0efc57f2cb54798ba207ae6fef9af4771d96bfa9
Related: SYS#4937, OS#1601
2020-10-08 19:08:17 +02:00
Neels Hofmeyr 02de87bd5c add BSSMAP-LE coding for Location Services
BSSMAP-LE: add Lb-interface messages between BSC and SMLC:
- Reset
- Reset Acknowledge
- Perform Location Request, possibly containing BSSLAP TA Layer3
- Perform Location Response
- Perform Location Abort
- Connection Oriented Information containing any BSSLAP APDU

Add encoding and decoding tests.

Change-Id: I271e59b794bafc0a7ae0eabbf58918f6d7df431d
2020-10-07 15:37:50 +02:00
Neels Hofmeyr c6848f4145 add BSSLAP coding for Location Services
BSSLAP: there are APDUs transferred in BSSMAP-LE Connection Oriented
Information messages on Lb between BSC and SMLC.
Add BSSLAP coding for these APDU messages:
- TA Layer3
- TA Request
- TA Response, possibly containing Location Estimate coded in GAD
- Reject
- Reset (for intra-BSS handover during TA Request)
- Abort (for inter-BSS handover)

Add encoding and decoding tests.

Change-Id: I6409c4bcac402dc7626a3afce9081c59cd715fe8
2020-10-07 15:19:43 +02:00
Neels Hofmeyr 086bd33f18 add GAD coding for Location Services
GAD, Universal Geographical Area Description:
- raw coding for all GAD elements.
- SI-units encoding and decoding for Ellipsoid point with uncertainty circle,
  which I presume is the typical "at most N meters away from cell tower located
  at X,Y", which corresponds to the TA positioning currently being implemented.
- other SI-units GAD element encodings are so far not implemented.

Add encoding and decoding tests.

In gsm/protocol/gsm_23_032.h are the raw coding structs as defined in 3GPP TS
23.032.

In gsm/gad.h are structs carrying consistent units based on meters and degrees,
for convenient / less error prone handling of GAD data, and for human readable
representations of the GAD data.

The separation of the two is desirable because OsmoBSC will receive GAD data
from OsmoSMLC on the Lb interface, and pass on this data to the MSC via the A
interface. It is better to pass the GAD data as-is without de/encoding.

Change-Id: I7a9dd805a91b1ebb6353bde0cd169218acbf223c
2020-10-07 11:39:46 +00:00