| Commit message (Collapse) | Author | Age | Files | Lines |
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I've been importing from 94d7dbf108813ea45a91e27e9a8bd231d5a23fa7
but the isdnhdlc code hasn't seen any changes since 2012 anyway.
Change-Id: I3c58f9cb6921c2fdd0f2fcb11f622a0be88c7c63
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Linux offers file descriptor based periodic (interval) timers,
which can achieve a higher precision than our userspace based
timers and which can be slave'd to CLOCK_MONOTINIC or other clock
sources. Let's add some code for osmo_fd wrapped versions that
integrate well with our select() abstraction.
The code has been used in osmo-bts-trx since June 2017 (change-id
I51b19adde14ebb7ef3bb863d45e06243c323e22e), and I'm just renaming
and moving it to libosmocore here. After a merge, the osmo-bts
implementations can be removed in favor if this one.
Change-Id: Ibeffba7c997252c003723bcd5d14122c4ded2fe7
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Add:
- gsm0808_current_channel_type_1()
- gsm0808_permitted_speech()
- gsm0808_chosen_channel()
- gsm0808_channel_type_name()
gsm0808_permitted_speech() is moved from osmo-bsc's bssap_speech_from_lchan();
gsm0808_chosen_channel() is moved from osmo-bsc's lchan_to_chosen_channel();
Rationale: will be re-used by inter-BSC handover, makes sense to keep with the
other gsm0808 utils.
Related: OS#2283 (inter-BSC handover, BSC side)
Change-Id: I8a3cc5d4548e9a78d945d54c69ccced251edcec9
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According to TS 24.008 10.5.4.7 the called party BSC number IE
has a maximum length of 43 octets.
This length is assumed inside osmo-hlr with a magic number:
uint8_t msisdn_enc[43]; /* TODO use constant; TS 24.008 10.5.4.7 */
This change makes libosmocore provide a constant which osmo-hlr can use.
Change-Id: Ia0bf6ceadcac38a8c75d166402b54058e5c6c6d4
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Imagine following scenario:
1- client connects to CTRL iface, a new conn is created with POLL_READ
enabled.
2- A non-related event happens which triggers a TRAP to be sent. As a
result, the wqueue for the conn has now enabled POLL_WRITE, and message
will be sent next time we go through osmo_main_select().
3- At the same time, we receive the GET cmd from the CTRL client, which
means POLL_READ event will be also triggered next time we call
osmo_main_select().
4- osmo_main_select triggers osmo_wqueue_bfd_cb with both READ/WRITE
flags set.
5- The read_cb of wqueue is executed first. The handler closes the CTRL
conn for some reason, freeing the osmo_fd struct and returns.
6- osmo_qeueue_bfd_cb keeps using the already freed osmo_fd and calls
write_cb.
So in step 6 we get a heap-use-after-free catched by AddressSanitizer:
[0;m20180424135406115 [1;32mDLCTRL[0;m <0018> control_if.c:506 accept()ed new CTRL connection from (r=10.42.42.1:53910<->l=10.42.42.7:4249)
[0;m20180424135406116 [1;34mDLCTRL[0;m <0018> control_cmd.c:378 Command: GET bts.0.oml-connection-state
[0;m20180424135406117 [1;34mDLINP[0;m <0013> bts_ipaccess_nanobts.c:417 Identified BTS 1/0/0
[0;m[1;36m20180424135406118 [1;34mDNM[0;m[1;36m <0005> abis_nm.c:1628 Get Attr (bts=0)
[0;m[1;36m20180424135406118 [1;34mDNM[0;m[1;36m <0005> abis_nm.c:1628 Get Attr (bts=0)
[0;m20180424135406118 [1;34mDCTRL[0;m <000e> osmo_bsc_ctrl.c:158 BTS connection (re)established, sending TRAP.
[0;m20180424135406119 [1;32mDLCTRL[0;m <0018> control_if.c:173 close()d CTRL connection (r=10.42.42.1:53910<->l=10.42.42.7:4249)
[0;m=================================================================
==12301==ERROR: AddressSanitizer: heap-use-after-free on address 0x611000003e04 at pc 0x7f23091c3a2f bp 0x7ffc0cb73ff0 sp 0x7ffc0cb73fe8
READ of size 4 at 0x611000003e04 thread T0
#0 0x7f23091c3a2e in osmo_wqueue_bfd_cb /home/osmocom-build/jenkins/workspace/osmo-gsm-tester_build-osmo-bsc/libosmocore/src/write_queue.c:65
#1 0x7f23091ad5d8 in osmo_fd_disp_fds /home/osmocom-build/jenkins/workspace/osmo-gsm-tester_build-osmo-bsc/libosmocore/src/select.c:216
#2 0x7f23091ad5d8 in osmo_select_main /home/osmocom-build/jenkins/workspace/osmo-gsm-tester_build-osmo-bsc/libosmocore/src/select.c:256
#3 0x56538bdb7a26 in main /home/osmocom-build/jenkins/workspace/osmo-gsm-tester_build-osmo-bsc/osmo-bsc/src/osmo-bsc/osmo_bsc_main.c:532
#4 0x7f23077532e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)
#5 0x56538bdb8999 in _start (/home/jenkins/workspace/osmo-gsm-tester_run-prod/trial-896/inst/osmo-bsc/bin/osmo-bsc+0x259999)
Fixes: OS#3206
Change-Id: I84d10caaadcfa6bd46ba8756ca89aa0badcfd2e3
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Ericsson supports a RSL command to page and immediate assign
as single command. For paging a MS the BTS must know the
paging group.
Change-Id: I9194500e307ad69f8da07510bc965a7a5cd82a2a
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We are alredy doing the same way for ip.access and siemens ones, and
this way we avoid using the hardcoded value in osmo-bsc.
Change-Id: I7cb65f3ff1cfdbe4eee97b7545bcd13a38c72e25
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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
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Rationale: so far we use code like
if (TLVP_PRESENT(&tp, VERY_LONG_ENUM_VALUE_NAME_THAT_NEVER_ENDS)) {
val = TLVP_VAL(&tp, VERY_LONG_ENUM_VALUE_NAME_THAT_NEVER_ENDS);
len = TLVP_LEN(&tp, VERY_L0NG_ENUM_VALUE_NAME_TH4T_NEVER_EMDS);
}
This is a) very long and b) prone to picking the wrong name one of the three
times, which would use the wrong length or val without necessarily being
noticed. A safer and shorter, more readable pattern is:
struct tlv_p_entry *e = TVLP_GET(&tp, VERY_LONG_ENUM_VALUE_NAME_THAT_NEVER_ENDS);
if (!e)
return -ENOENT;
hexdump(e->val, e->len);
Change-Id: I445de17fc2daa3ab051f5708dd0cc185b23dc048
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According to the GSM TS 04.07, section 11.2.3.1.1 "Protocol
discriminator", bits 1 to 4 of the first octet of a standard
L3 message contain the protocol discriminator IE.
Meanwhile, the GSM48_PDISC_USSD represents value 0x11, i.e.
0b10001, that requires 5 bits, and moreover it is not
documented anywhere. Let's drop it.
Change-Id: Ic4eb8a6db4ff1dfd535bd0c84e7acf1908422f64
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Clarify semantics and micro-optimise for the case of single Cell Identifer IEs.
Test in gsm0808_test.c
So far we have gsm0808_enc_cell_id_list2(), but there also exist instances of
single Cell Identifiers (3GPP TS 48.008 3.2.2.17).
It is possible to decode the same using the cell identifier list API, but this
forces the caller to also keep a full struct gsm0808_cell_id_list2 with all its
127 entries around.
E.g. for handover, there are two Cell Identifiers (Serving and Target); I'd
need two full cell id lists for each, and these would be dynamically allocated
for each handover operation, whether it uses them or not.
Related: OS#2283 (inter-BSC HO, BSC side)
Change-Id: I9f9c528965775698ab62ac386af0516192c4b0cc
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Allow passing multiple struct tlv_parsed in an array, to allow parsing as many
repeated IEs as are expected by the caller.
From tlv_parse(), call tlv_parse2() with dec_multiple = 1 to yield the previous
behavior. tlv_parse() remains valid API.
An example of multiple IEs is the BSSMAP Handover Request, containing Cell
Identifier (Serving) and Cell Identifier (Target), both defined by 3GPP TS
48.008 3.2.2.17 with identical IE tags; both are mandatory.
Related: OS#2283 (inter-BSC HO, BSC side)
Change-Id: Id04008eaf0a1cafdbdc11b7efc556e3035b1c84d
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This will be used by the upcoming neighbor_ident API in osmo-bsc, where the vty
interface allows composing neihbor BSS cell identifier lists, and we want to
allow adding individual items from individual user commands.
It will also be useful to accumulate cell identifiers in case a subscriber sees
multiple alternative cells from a neighboring BSS, and we want to pass these on
to the MSC in a Handover Required.
Related: OS#2283 (inter-BSC HO, BSC side)
Change-Id: I5781f5fa5339c92ab2e2620489b002829d206925
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This will be used by cell idenitifier list code, like upcoming neighbor_ident
VTY in osmo-bsc and regression tests.
Change-Id: Iebc5cdf61b697b1603900993fc265af3eca0cedf
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Change-Id: I512ff2035ae7a929e6c96df82938cc1ddbcc4e2a
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Change-Id: I27bb2ab59408c9cd1363b3b5acb2263128c55732
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All our projects have seen patches to move to 3-digit MNC handling.
Furthermore, since our builds no longer break from deprecation warnings, I shall
no longer refrain from deprecating old API.
Change-Id: I55dfaf7ce74870de44120b26c42d45bb7b184341
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OSMO_IS_LITTLE_ENDIAN is always defined and has a value of
either 0 or 1
as a result in byteswap.h the corresponding swap functions
will be always called, independent of the endianess
Signed-off-by: Thorsten Alteholz <osmocom@alteholz.de>
Change-Id: I4a09d2d8ccf155e70a3977ae1747758b6bc5125e
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There seems to be quite some confusion / overlap between enum
gsm48_reject_value, gsm48_gsm_cause and gsm48_gmm_cause. I tried to go with
gsm48_gsm_cause_names[], but e.g. GSM48_REJECT_CONGESTION is not represented.
Instead of attempting to mix/merge those enums, provide a separate value string
array for enum gsm48_reject_value.
This will be used by osmo-msc's libvlr (refactoring of FSM result handling),
I27bf8d68737ff1f8dc6d11fb1eac3d391aab0cb1.
Change-Id: I6661f139e68a498fb1bef10c266c2f064b72774a
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In the osmo-msc, I would like to set the subscr conn FSM identifier by a string
format, to include the type of Complete Layer 3 that is taking place. I could
each time talloc a string and free it again. This API is more convenient.
From osmo_fsm_inst_update_id(), call osmo_fsm_inst_update_id_f() with "%s" (or
pass NULL).
Put the name updating into separate static update_name() function to clarify.
Adjust the error message for erratic ID: don't say "allocate", it might be from
an update. Adjust test expectation.
Change-Id: I76743a7642f2449fd33350691ac8ebbf4400371d
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Rationale: with osmo_escape_str(), you get the escaped contents of the string,
but not so graceful handling of NULL strings. The caller needs to quote it, and
for NULL strings not quote it.
osmo_quote_str() is like osmo_escape_str() but always quotes a non-NULL string,
and for a NULL string returns a literal NULL, i.e. it should (tm) give the
exact C representation of a string.
That's useful in testing, to show exactly what char* situation we have, without
jumping through hoops like
if (str)
printf("\"%s\"", osmo_escape_str(str, -1));
else
printf("NULL");
Copy the unit test for osmo_escape_str() and adjust. To indicate that the
double quotes are returned by osmo_quote_str(), use single quotes in the test
printf()s.
I considered allowing to pick the quoting characters by further arguments, but
that complicates things: we'd need to escape the quoting characters. Just
hardcode double quotes like C.
Change-Id: I6f1b3709b32c23fc52f70ad9ecc9439c62b02a12
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The CTRL interface has a ctrl_cmd_def_* API that allows deferring a CTRL
command reply until later. However, the command handling currently fails to
acknowledge this and deallocates the struct ctrl_cmd anyway.
Fix: in struct ctrl_cmd, add a defer pointer to be populated by
ctrl_cmd_def_make(). A cmd thus marked as deferred is not deallocated at the
end of command handling. This fix needs no change in calling code.
(Another idea was to return a different code than CTRL_CMD_HANDLED when the
command is to be deferred, but that would require adjusting each user of
ctrl_cmd_def_make(). The implicit marking is safer and easier.)
Show that handling deferred commands is fixed by adjusting the expectations of
ctrl_test.c's test_deferred_cmd() and removing the now obsolete exit_early
label.
One symptom of the breakage is that osmo-bts-sysmo crashes when asked to report
a trx's clock-info, which is aggravated by the fact that the sysmobts-mgr does
ask osmo-bts-sysmo for a clock-info.
The crash appears since Id583b413f8b8bd16e5cf92a8a9e8663903646381 -- it looked
like just fixing an obvious memory leak, which it did as shown by the unit
test, but deferred ctrl commands actually relied on that leak. Both fixed now.
Related: OS#3120
Change-Id: I24232be7dcf7be79f4def91ddc8b8f8005b56318
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As it was already documented before, the 'ss_request' struct has
a rudiment of deprecated 'ussd_request' struct - the 'ussd_text'
field. It represents the data either of an INVOKE component,
either of a RETURN_RESULT component, encoded as ASCII in case
if DCS is 0x0f (i.e. decoded by the code itself), otherwise
raw bytes 'as is'.
Previously, there was no possibility to distinguish between
ASCII and raw bytes with different DCS. Moreover, the payload
decoding is not desired in some cases.
Let's introduce the new fields, which will carry the raw
unmodified payload, its length and DCS (Data Coding Scheme).
Change-Id: Ia193d175021e145bb3b131290231f307dbefc64a
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Change-Id: I22144dd759e0c1bb1965574b7ddd676606e5d6b7
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libosmocore has no value strings for BSSMAP cause codes yet.
- Add value strings for BSSMAP cause codes and a function
to retrieve them
Change-Id: I313dd8d7b06374e1e35ddc18b7a42562d9e25d45
Related: OS#1609
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Deprecate osmo_init_logging() for the benefit of adding an explicit talloc
context argument to new function osmo_init_logging2(). Pass a ctx to
log_init() instead of hardcoded NULL.
Before now, *all* of our code uses a NULL ctx for logging, which amounts to
talloc "leaks" hit by address sanitizer builds on newer gcc (e.g. gcc 7.3.0 on
debian 9).
This commit helps fixing "leaks" detected in e.g. osmo-bsc unit tests by a
sanitize build with gcc (Debian 7.3.0-12) 7.3.0.
Change-Id: I216837780e9405fdaec8059c63d10699c695b360
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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
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This is a more modern way of printing the Abis OML Formatted Object
Header, without assuming that it would be used in a log statement
or prescribing the log level to be used.
Change-Id: I9b2c2afec28882b817d104d5b062651ade7aadd8
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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
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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 680acae725b2b8dda2f239ff20073306fdfb3f6e
Change-Id: Iddd97415a17b06b69f69ddca2e2e296eb2f23a89
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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
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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
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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
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Change-Id: I5bebc6e01fc9d238065bc2517058f0ba85620349
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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
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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
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Forthcoming jitter buffer code in libosmo-netif will make use of it.
Change-Id: I2434f9dfa401f736bc62a2ddce920e587cd8c517
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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
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Let's extend PH-RACH.ind with some useful data across the L1SAP
boundary.
Change-Id: I9439810c3a3ad89ea0302753617b850749af887c
Related: OS#3003
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If a monotonic clock must be used, then the clock_gettime API is used
which uses timespec structures. Linux systems by default don't provide
helpers to calculate time using timespecs, so let's add them here.
Let's also make this header public so these helpers can be used in other
projects using libosmocore (expected user: libosmo-netif).
Change-Id: I45fc993b9bb0a343763238bf463c8640f47b00f1
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For all other decode operations we report the BER, but not for the
RACH. This results in osmo-bts-trx not being able to report BER
to the higher layers, which is possible on other BTS backends.
Let's close this gap by i |