Commit Graph

21 Commits

Author SHA1 Message Date
Philipp Maier cdd05816da gsm_08_08: gsm0808_permitted_speech does not have value strings
enum gsm0808_permitted_speech does not have any value strings. Lets
add value strings to make debugging easier.

Change-Id: I5b5612a5df2758b0137a34c17f7c8c2b3f07c806
2018-07-12 18:18:39 +00:00
Harald Welte 2f51684e63 gsm_08_08.h: Add enum for LCLS config, control and status
Change-Id: I775aba59942fb6f34fb31b71d2f0f2ac5c3ae831
2018-05-30 01:36:04 +02:00
Neels Hofmeyr 70aba3ffe2 add support for gsm0808 HANDOVER REQUIRED message
Related: OS#2283 (inter-BSC Handover, BSC side, MO)
Change-Id: Idb6dc3eab0282158a17091d97ed77c1e2e3eb3c2
2018-05-27 22:04:17 +02:00
Thorsten Alteholz 0062a5fbbf fix spelling
Change-Id: I3ac92217f83279d5f987ab34eb18b2e6cb1c7812
2018-05-15 20:57:56 +00:00
Neels Hofmeyr a4399c8891 add gsm0808_cell_{id,id_list}_name() and friends
Provide comprehensive API to obtain string representations of Cell Identifiers
and -Lists.

Change gsm0808_test.c to use the new functions (which simplifies the output a
bit), so that we don't duplicate printing code in gsm0808_test.c, and so that
the not-so-trivial printing code is also tested.

In gsm0808_test, also test gsm0808_cell_id_list_name_buf()'s return value and
truncation behavior.

The rationale for gsm0808_cell_id_list_name(), i.e. printing an entire list of
cell identifiers, is that even though the maximum is 127 elements, a list of
more than a few elements is hardly ever expected in practice (even more than
one element isn't actually expected: either "entire BSS" or a single LAC). It
is thus useful to log the entire list when it shows up in Paging and Handover.

Change-Id: I9b2106805422f96c5cc96ebb9178451355582df3
2018-04-18 02:38:37 +02:00
Philipp Maier 7e27b14ef2 gsm_08_08: correct speech codec defaults
The speech codec defaults are not correct. The defaults recommended
in 3GPP TS 28.062, Table 7.11.3.1.3-2 are limited by 3GPP TS 48.008,
Section 3.2.2.103. Some defaults are actually reserved for future
use. Also the endianess of the 16 bit values is reversed.

- correct values so that they match the specification
- transmit bytes in the correct endianess

Change-Id: I6c3a34d39a375d71c4128fd38f06629e8b98b100
2018-03-23 11:59:29 +00:00
Stefan Sperling 11a4d9dd91 support for more cell ID list types in libosmocore
Introduce gsm0808_dec_cell_id_list2() with supports additional types of
cell identifier lists. The new parsing routines are based on similar
routines used by the paging code in osmo-bsc's osmo_bsc_bssap.c.

Likewise, introduce gsm0808_enc_cell_id_list2() with support for the
same additional types of cell identifier lists.

The old API using struct gsm0808_cell_id_list is deprecated.
The previous definition was insufficient because it assumed that all
decoded cell ID types could be represented with a single uint16_t.
It was declared in a GSM protocol header (gsm/protocol/gsm_08_08.h)
despite being a host-side representation of data in an IE.
The only user I am aware of is in osmo-msc, where this struct is used
for one local variable. osmo-msc releases >= 1.1.0 make use of this API.

While here, fix a small bug in a test:
test_gsm0808_enc_dec_cell_id_list_bss() set the cell ID type to 'LAC'
but obviously wants to use type 'BSS'.

Change-Id: Ib7e754f538df0c83298a3c958b4e15a32fcb8abb
Related: OS#2847
2018-03-13 14:28:15 +01:00
Neels Hofmeyr ffad574a4b gsm: add gsm0808_speech_codec_type_names
Used for logging Speech Codec List entries in osmo-bsc, during handover
decision.

Change-Id: Ie6418d16db333188e9bcd2b32b7216f277ae8832
2018-01-12 05:34:05 +01:00
Neels Hofmeyr 87e4550585 doxygen: enable AUTOBRIEF, drop \brief
Especially for short descriptions, it is annoying to have to type \brief for
every single API doc.

Drop all \brief and enable the AUTOBRIEF feature of doxygen, which always takes
the first sentence of an API doc as the brief description.

Change-Id: I11a8a821b065a128108641a2a63fb5a2b1916e87
2017-06-23 00:18:22 +00:00
Philipp Maier a9b9276948 gsm0808: add default speech codec configuration
In an AoIP scenario, the speech codec list field specifies the
codecs used in the RTP interface. This patch adds a table
with default codec configurations that match the codec
configurations that are also used on the air interface.

Change-Id: I9dc0165d76a022b2c1b7418bc3133407e61b7261
2017-06-22 17:08:15 +00:00
Philipp Maier bb8396690e gsm0808: fix AoIP speech codec element parser/generator
The implementation of the parser/generator for the speech codec
information element slightly wrong, making it impossible to use
it properly.

(See also: 3GPP TS 48.008, 3.2.2.103)

Change-Id: Idabb0f9620659557672e1c6b90c75481192e5c89
2017-06-22 17:08:14 +00:00
Philipp Maier da38203418 gsm0808: add speech codec type constants
The codec type to be set in member type in struct gsm0808_speech_codec
has its own coding scheme to reference the used codec types. This patch
declares an enum with valid speech codec types.

Change-Id: Icaa768071d4364e671bc7e6d48b82d1f07f93f93
2017-06-21 20:20:02 +00:00
Philipp Maier 890f1f5a2c cosmetic: Add info about coresponding codecs to permitted speech consts
The constants in enum gsm0808_permitted_speech are not very expressive.
Add comments indicating each constant's corresponding codec.

Change-Id: I9734f7c261becffe38ffd41c304d006d08530c1a
2017-06-21 20:20:02 +00:00
Philipp Maier 783047e86e gsm0808: Add utils for Cell Identifier List
The planned support for true A over IP requires the encoding of
the a Cell Identifier List element (see also BSS_MAP_MSG_PAGING).

This commt adds encoding/decoding functionality and tests for
the element mentioned above, however, it is not yet actively used.

Change-Id: I625245dd1dd396fc2bc189e8cd2c444a33042528
2017-04-08 07:44:46 +00:00
Philipp Maier 14e76b9958 gsm0808: Add utils for Encryption Information
The planned support for true A over IP requires the encoding of
the an Encryption Information element (see also BSS_MAP_MSG_CIPHER_MODE_CMD).

This commt adds encoding/decoding functionality and tests for
the element mentioned above, however, it is not yet actively used.

Change-Id: I8262050a9d9fd3f17462cfbb046c6e034dccc6fb
2017-04-08 07:44:46 +00:00
Philipp Maier e0c65301d5 gsm0808: Add utils for Channel Type
The planned support for true A over IP requires the encoding of
the a Channel Type element (see also ASSIGNMENT REQUEST).

This commt adds encoding/decoding functionality and tests for
the element mentioned above, however, it is not yet actively used.

Change-Id: Id0e2164d84b8cbcc6fe6a090fc7f40a1251421d7
2017-04-08 07:44:46 +00:00
Philipp Maier 6f725d6da3 gsm0808: Add utils for Speech Codec List and Speech Codec
The planned support for true A over IP requires the encoding and
decoding of a so called "Speech Codec Element" element.

This commt adds parsing functionality and tests for the element
mentioned above, however, it is not yet actively used.

Change-Id: I0e1e2edf47adaa45b22d4b0bcae3640dba7ca200
2017-04-08 07:44:45 +00:00
Harald Welte 92107dfd3b update TS 08.08 header + TLV definitions to TS 48.008 / 11.7.0
This adds support for A-over-IP and LCLS related message/IEI
definitions.

Old definitions are in decimal, which is very hard (at least for me)
to compare with the binary tables in the spec.  Hex is much easier
to manually compare for completeness/correctness.  I didn't touch
the existing definitions, but think they should move to hex, too.
2014-06-21 23:16:20 +02:00
Harald Welte c8585cf408 update gsm_08_08.h to Release 11 2014-06-21 22:28:12 +02:00
Sylvain Munaut 12ba778afd include: Switch to #pragma once pattern
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2014-06-16 10:17:27 +02:00
Pablo Neira Ayuso 8341934844 include: reorganize headers file to include/osmocom/[gsm|core]
This patch moves all GSM-specific definitions to include/osmocom/gsm.
Moreover, the headers in include/osmocore/ have been moved to
include/osmocom/core.

This has been proposed by Harald Welte and Sylvain Munaunt.

Tested with `make distcheck'.

Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
2011-03-23 18:09:28 +01:00