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
The functions osmo_bts_set_feature() and osmo_bts_has_feature() are
currently defined as inline. Since inline is a hinting, the compiler
might choose not to inline the function. This eventually leads to
linker problems because the function is then defined multiple times.
- use "static inline" instead of "inline" only.
This patch is a follow up patch to
Change Id 680acae725
Change-Id: Iddd97415a17b06b69f69ddca2e2e296eb2f23a89
I found myself often using osmo_mnc_from_str() to also decode an MCC and be
strict about it, but each time I felt the need to comment like "using
osmo_mnc_from_str() also for MCC". Rather formalize this properly.
Use a static inline function, no need to add more symbols to libosmo-gsm.
Change-Id: I020a4f11791c61742a3d795f782805f7b7e8733e
osmo-bsc and osmo-bts share enums and value strings to describe
feature data that is exchanged via OML (manufacturer id) on startup.
Also the functions to set and get the respecitive bits in the feature
bitvectors are in osmo-bsc and osmo-bts. This is a code duplication
and should be resolved.
- add enum osmo_bts_features (replaces enum gsm_bts_features)
- add osmo_bts_features_descs (replaces gsm_bts_features_descs)
- add osmo_bts_set_feature (replaces gsm_btsmodel_set_feature)
- add osmo_bts_has_feature (replaces gsm_btsmodel_has_feature)
Change-Id: Id0c35aef11aa49aa40abe7deef1f9dbd12210776
In some cases, we want to mark an unset MCC-MNC. Define uint16-max for this
purpose.
osmo-bsc code is already doing so with a -1 and using int data types, which
will become inconvenient with the new API that handles MCC and MNC as uint16_t.
Change-Id: Ieee7add0bd6d94cf84743a49794bbcd38561b72f
osmo_mnc_from_str() preserves leading zeros in the string and is useful for
VTY config parsing (osmo-bsc, osmo-msc, osmo-sgsn, osmo-pcu).
osmo_{plmn,mnc}_cmp() takes care of the slight intricacy of ignoring the 3-digit flag
if the MNC is anyway >99. Will be used by osmo-sgsn.git and osmo-bsc.git. (All
current users just care about identical MNC, but a proper cmp doesn't hurt.)
Change-Id: Ib7176b1d65a03b76f41f94bc9d3293a8a07d24c6
Enable representing three-digit MNC with leading zeros. The MNCs 23 and 023 are
actually different; so far we treated both as 23. Re-encode an incoming BCD or
string of 023 as it were, i.e. not dropping the leading zero as 23.
Break ABI compatibility by changing the size and ordering of structs
gprs_ra_id, osmo_plmn_id, osmo_cell_global_id, ... by adding an mnc_3_digits
flag.
Change ordering in gprs_ra_id because the canonical oder is {Mobile Country
Code, Mobile Network Code}, so have the mcc member first.
ABI compatibility cannot be maintained for struct gprs_ra_id, since it is a
direct member of structs bssgp_bvc_ctx and bssgp_paging_info, and even just
adding a flag to the end would cause ABI changes of those structs. Similarly,
osmo_plmn_id is a direct member of osmo_location_area_id, and so forth.
Add new API to set and read this additional flag to preserve leading zeros:
- osmo_plmn_to_bcd(), osmo_plmn_from_bcd() after
gsm48_mcc_mnc_to_bcd() and gsm48_mcc_mnc_from_bcd().
- gsm48_decode_lai2(), gsm48_generate_lai2() after
gsm48_decode_lai(), gsm48_generate_lai().
- gsm0808_create_layer3_2() after gsm0808_create_layer3() and gsm0808_create_layer3_aoip().
- various osmo_*_name() functions in gsm23003.h (osmo_rai_name() still in
gsm48.h close to struct gprs_ra_id definition). The amount and duplication of
these may seem a bit overboard, but IMO they do make sense in this way.
Though most code will soon see patches unifying the data structures used, in
some cases (vty, ctrl) they are required singled out. Without these
functions, the formatting ("%0*u", mnc_3_digits ? 3 : 2, mnc) would be
duplicated all over our diverse repositories.
In various log output, include the leading MNC zeros.
Mark one TODO in card_fs_sim.c, I am not sure how to communicate a leading zero
to/from a SIM card FS. The focus here is on the core network / BSS.
To indicate ABI incompatibility, bump libosmogsm and libosmogb LIBVERSIONs;
adjust debian files accordingly.
Implementation choices:
- The default behavior upon zero-initialization will be the mnc_3_digits flag
set to false, which yields exactly the previous behavior.
- I decided against packing the mnc with the mnc_3_digits field into a
sub-struct because it would immediately break all builds of dependent
projects: it would require immediate merging of numerous patches in other
repositories, and it would make compiling older code against a newer
libosmocore unneccessarily hard.
Change-Id: Id2240f7f518494c9df6c8bda52c0d5092f90f221
So far, we used quarter-bits across the L1SAP between the hardware/PHY
specific part of OsmoBTS and the common part. In order to increase
the resolution, let's add fields/members for 1/256th bit.
In order to keep ABI and API compatibility, we use a union around the
old and new values, so old code will still compile + work withe new
libosmocore.
Change-Id: Ibb58113c2819fe2d6d23ecbcfb8b3fce4055025d
This breaks all existing / older osmocom-bb builds, and hence
cannot be accpeted. See also https://gerrit.osmocom.org/#/c/6679
Related: OS#2985
This reverts commit 3c38e60cd5.
Change-Id: Icfc52ca4e5cbe3a444d98037d27fa101e3614e06
Add generic function which allows caller to set Mobile Identity
explicitly. This allows to use IMEI or IMEISV for example. Make
gsm48_generate_mid_from_imsi() into wrapper around new function.
Change-Id: Id79be7abfff75ecd0d248bbeed93e605abeec9b3
Add inline functions to manipulate and query ACC flag bits
in the rach_control.t2 and rach_control.t3 octets.
These function definitions also serve as documentation of
the purpose of rach_control.t2/t3.
Change-Id: I8f0a65c2980f86eb5c43f3bebe727f4d4d973163
Related: OS#2591
* match return type of osmo_gsup_encode() with osmo_gsup_decode() to allow
propagating error to caller
* check return value of osmo_gsup_encode() in GSUP test
* return errors instead of braking app with aseert
Change-Id: Idaa1deecb6d9e15329bd51867b4f6a03357461f0
Related: OS#2864
TS 24.007 is quite clear: The upper two bits of the message type
octet are *not* part of the message type in any of the L3 protocols
which implement sequence numbers. it doesn't matter if it's R98 or
R99, or whether the sequence number is 1bit or 2bits wide.
Related: OS#2908
Change-Id: Iec875a77f5458322dfbef174f5abfc0e8c09d464
3GPP doesn't specify a network-side T310 default, but waiting for 180s
(3 minutes!) for the next message after CALL CONFIRMED is clearly way
too long and will just use radio resources for no good reason.
Change-Id: Ia52f9358bc86b23c72af9c80e2fff5cb0004b57a
Related: OS#2884
As MNCC is rather hard to debug (wireshark cannot trace UNIX domain
sockets), let's add our own decoder that we can use from related
debug log statements in the respective programs.
Change-Id: I216aaf70868ba5f3860a60c4b2442957531a3011
According to the GSM 04.80 (version 5.0.0) specification Annex A
"Expanded ASN.1 Module "SS-Protocol", the maximum size of a USSD
OCTET STRING is 160 bytes.
Thus according to ETSI TS 123 038 (version 10.0.0) specification
6.1.2.3 "USSD packing of 7 bit characters", in 160 octets, it's
possible to pack (160 * 8) / 7 = 182.8, that is 182 characters.
The remaining 6 bits are set to zero.
This change defines both mentioned values:
- GSM0480_USSD_OCTET_STRING_LEN 160
- GSM0480_USSD_7BIT_STRING_LEN 182
keeping the old MAX_LEN_USSD_STRING 'as is' due to compatibility
reasons. Now the new value is used for ss_request structure, while
old one is still used for deprecated ussd_request structure.
Change-Id: I6dead74f9ecea079752ff2400cdaf7c30187784e
It's just a tiny wrapper around gsm48_encode_ra() with less strict type
signature.
Related OS#1640
Change-Id: I79d6d1133afbf32e891a6b0e3a244c6885ea9614
Add gsm48_encode_ra() which takes appropriate struct as [out] parameter
instead of generic buffer. Using uint8_t buffer instead of proper struct
type prooved to be error-prone - see Coverity CID57877, CID57876.
Old gsm48_construct_ra() is made into tiny wrapper around new
function. The test output is adjusted because of the change in function
return value which was constant and hence ignored anyway.
Related: OS#1640
Change-Id: I31f9605277f4945f207c2c44ff82e62399f8db74
For example encode_auth_info() from gsup.c calls
msgb_tlv_put(msg, iei, 0, NULL)
to put a tag and len with content data following later.
However, this would cause a memcpy() from a NULL pointer, in tlv_put(). Allow
passing NULL and len = 0 for cases like the above:
If val is NULL, use memset(0) instead of memcpy().
If len is zero, do not copy nor memset anything.
Hence make tlv_put() behave in a well-defined and valid way for any and all
input args; no negative fallout is possible from this patch.
Add proper API doc comment.
Fixes a sanitizer build failure in gsup_test:
../../../../src/libosmocore/include/osmocom/gsm/tlv.h:99:2: runtime error: null pointer passed as argument 2, which is declared to never be null
Helps fix sanitizer build on debian 9.
Change-Id: I13dce9cd1228817890d3e81edeeb660c893c1d64
Let's fix some erroneous/accidential references to wrong license,
update copyright information where applicable and introduce a
SPDX-License-Identifier to all files.
Change-Id: I39af26c6aaaf5c926966391f6565fc5936be21af
Similar APIs exist for opstate and availability status.
This patch does not break backward compatibility because osmo-bsc still
requires direct use of the structure in get_string_value().
Change-Id: Ieace734aaff3f07606113feddde65b75202d96d6
The function is a wrapper on top of getrandom() (if available via glibc) or
corresponding syscall. If neither is available than failure is always
returned.
It's intended to generate small random data good enough for session
identifiers and keys. To generate long-term cryptographic keys it's
better to use special crypto libraries (like GnuTLS for example)
instead.
As an example it's used to replace old insecure random number generator
in osmo-auc-gen utility.
Change-Id: I0241b814ea4c4ce1458f7ad76e31d390383c2048
Related: OS#1694
Add GSM23003_IMSI_MIN_DIGITS definition.
Add regression test gsm23003_test.c to test the two new functions.
Will be used by OsmoHLR to validate VTY and CTRL input.
Change-Id: I1e94f5b0717b947d2a7a7d36bacdf04a75cb3522
In the Protocol Configuration Options IE (see 3GPP TS 24.008 10.5.6.3)
there is yet another new TLV format (derived from PPP IPCP/LCP/...)
which uses 16bit tag and 8bit length. Let's add functions so we can
generate related TLVs. Parsing is unfortunately not possible in our
existing structure as our tlv_parsed array only has 256 entries and
thus cannot cope with 16bit tags.
Change-Id: I9799130e2eba8fae8c4480fbb8a900c30232b694
Convert a given frame number into a printable string that displays
the sub components of the frame number.
Change-Id: I8015d2ded3940b01b35df7b72fc35c70c25e9926
The PDP charging characteristics will be returned from the PDP
selection code and be used in the SGSN. It is following the same
approach as the QoS and PDP addr. It is a bit of a pity that we
have to define this in a different project.
Change-Id: I7815c5dfd7b7fb0ea78d816ebfb3abfbf0090afe
These fields can be in the ISD and the PDP Context inofmration. Store
pointers to this IE in both cases. It needs to be used by the SGSN
when opening a PDP context.
Change-Id: Iedc7c02adcf77ca5c9545119e19c968dfbbb3e6b
Recent commit 3149b0d076 adds function
gsm0808_chan_type_to_speech_codec() but adds a completely mismatching name in
libosmogsm.map, as well as a definition with a typo in the name.
Fix the entry in libosmogsm.map.
Add the missing 'c' in gsm0808_utils.h
Change-Id: I5a621fa5ef6b632eabbe224f3dd383eacaffb695
Stefan Sperling
Philipp Maier
Harald Welte
Pau Espin
Neels Hofmeyr