Contrary to the existing gsm0480_create_ussd_resp(), the new function
only generates the value part of the FACILITY IE, and not the IE
Tag/Length or the 04.08 L3 header. This is needed in the context of
GSUP-encapsulated USSD, as here we don't work with L3 messages, but
only pass on the FACILITY IE value.
Change-Id: Ide240279240322f643e142229eb7829f538c6314
In SIMtrace 1 the ATR was sent the same way as an APDU.
The ATR is not an APDU, and could be mis-interpreted as valid APDU.
This change allows to make the difference between actual APDU and
the ATR, but also adds sub_types for future SIMtrace 2 use cases.
Change-Id: I5bd0dff5a4a90cfe96d9c4f3dec6657e1d85bf7a
Callers require to know whether the returned ERROR cmd was received or
generated locally, in order to send it or do something with it locally.
Related: OS#3394
Change-Id: Ide9170e5c31967c353f8fe4e8227e64130b91eae
enum gsm0808_permitted_speech does not have any value strings. Lets
add value strings to make debugging easier.
Change-Id: I5b5612a5df2758b0137a34c17f7c8c2b3f07c806
The value string table gsm48_chan_mode_names[] lacks a function
to get the value string by a value. Lets add one.
Change-Id: I0757bcc278c140e18249e35864338e19cdaa3cf7
The conv_gen.py utility was tested against both Python 2 and 3,
so there is no need to enforce Python 2. Also, having:
#!/usr/local/bin/python{2|3}
is a bad idea, because Python may be installed in a different location.
Change-Id: I6007d481047b584db13d6eda70fb99f11f9ddaa1
In Change-Id I5a70eb65952cbc329bf96eacb428b07a9da32433 we redirected
all OSMO_ASSERT() via osmo_panic(). However, this caused various
applications to have build failures, as OSMO_ASSERT() now appeared
to be able to return to the call site. Let's inform the compiler
explicitly that there's no return from osmo_panic().
Change-Id: I8adf4c7b0ee6a4581cef8dd4e9f6a1dfde70ee55
A loooong time ago, we introduced osmo_panic() as a wrapper around
abort(). The advantage is, that this wrapper can be overridden, and
that it will also work in embedded (bare iron) targets, where the
abort simply translates to an infinite loop.
Change-Id: I5a70eb65952cbc329bf96eacb428b07a9da32433
Add:
gsm0808_create_handover_detect()
gsm0808_create_handover_complete()
gsm0808_create_handover_failure()
To existing structs gsm0808_old_bss_to_new_bss_info and
gsm0808_handover_required, add a final 'more_items' flag that makes future
extensions API and ABI compatible.
Fix the msgb string for Handover Request Ack.
Extend some API doc comments.
Related: OS#2283 (inter-BSC Handover, BSC side, MT)
Change-Id: I03ee7ce840ecfa0b6a33358e7385528aabd4873f
In Change-Id I1cee271fed0284a134ffed103c0d4bebbcfde2a8 we added support
for a new session state IE, but we didn't add any value_string array
for string conversion of it. Let's fix this.
Change-Id: I3d9f087786dc37c42498fa9a2be07483ec93ba7b
This function can be used to resolve the error message type for
a given message type. Can be used by generic error handlers that
work for any incoming message type.
Change-Id: Ic637bec53dd7fe3ec83da99b49b4eae34d5602b2
This function can be used when there is only a part of GSM 04.80
message available - Facility IE, e.g. when a message is carried
over GSUP/MAP. Let's expose it.
Refactoring includes the following:
- adding the 'gsm0480_' prefix;
- correcting inverted return value;
- cosmetic code style changes.
Change-Id: I623c39ffbe6cdee65eade8435a2faa04d0da193e
In some cases, there is no need to parse the whole message,
e.g. during the conversion from DTAP to GSUP/MAP. This
function can be used to extract given IE from a message.
Change-Id: I3989d061903352473305f80712f1a1560d05df3d
This function permits the user to register deprecated log categories,
which will ensure that if log categories are removed from a program,
old config files will still load.
We simply dynamically allocate a cmd_element and install it at
CFG_LOG_NODE. Not registering it at VIEW_NODE or ENABLE_NODE
ensures that it's not accessible from the interactive VTY, but only
from the config file / configure node.
Change-Id: I171f62ea2dc565b3a6c3eecd27fb7853e2529598
The general idea about each osmo_fsm_instance having a separate
log-level was to be able to selectively increase/show/enable logging
for some FSM instances (e.g. of a particular subscriber) while
maintaining normal logging verbosity for all other instances of the
same FSM.
The introduction of LOGPFSML() in Change-Id
If295fdabb3f31a0fd9490d1e0df57794c75ae547 broke that idea, as it would
use a compile-time log level, irrespective of the
osmo_fsm_inst.log_level setting of the given instance.
Let's combine the two:
Use the explicit level stated at LOGPFSML(), _unless_ this instance
has a higher log_level configured.
This way, all FSMs should normally be created with
osmo_fsm_inst.log_level == LOGL_DEBUG. At that point LOGPFSM()
statements would be rendered at debug level, typically below the
threshold of most logging configurations.
Code that has explicit higher log levels like LOGPFSML(fi, LOGL_ERROR)
would always be printed, as it is an error message.
And if we now increase the osmo_fsm_inst.log_level, then even the normal
LOGPFSM() statements would suddenly be logged at that higher level,
selectively increasing log verbosity - like originally intended.
Change-Id: I1820f04d0c6f5d5ff08eb95b8c0e88764534491a
In order to be able to transfer SS/USSD messages via GSUP,
this change introduces the following new message types:
- OSMO_GSUP_MSGT_PROC_SS_*,
and the following new IE:
- OSMO_GSUP_SS_INFO_IE
which represents an ASN.1 encoded MAP payload coming to/from
the mobile station 'as is', without any transcoding.
Change-Id: Ie17a78043a35fffbdd59e80fd2b2da39cce5e532
Related: OS#1597
Unlike TCAP/MAP, GSUP is just a transport layer without the
dialogue/context. This prevents us from having session based
communication, required e.g. for USSD. But we can emulate
TCAP dialogue by adding additional IEs, which would allow
to relate each message to a particular session.
This change introduces the following IEs:
- OSMO_GSUP_SESSION_ID_IE,
- OSMO_GSUP_SESSION_STATE_IE,
which optionally can be used to indicate that the message is
related to a session with given ID, and to manage session
state, i.e. initiate, continue, and finish.
Change-Id: I1cee271fed0284a134ffed103c0d4bebbcfde2a8
Related: OS#1597
The idea is to be able to add a gsm0808_cell_id to a gsm0808_cell_id_list2:
first convert it to a list, then re-use gsm0808_cell_id_list_add(). It will be
used by osmo-bsc to manage neighbor-BSS cell identifiers from VTY.
Change-Id: Ibf746ac60b1b1e920baf494b396658a5ceabd788
This new function can be used to print a rate counter group according
to a format string. The intention is to generalize and replace manual
printing of counters as implemented for the 'show statistics' VTY
command of osmo-bsc.
Related: OS#3245
Related: osmo-bsc commit 71d524c059c5a5c90e7cb77d8a2134c1c68b9cde (g#9217)
Change-Id: Idb3ec12494ff6a3a05efcc8818e78d1baa6546bd
For some strange reason, the osmo_mncc_name() inline function
was not in the mncc.h header, but in the mncc.c file. Let's fix that.
Change-Id: I2c3666510c981dffa4ba25bed517fd7ebd1250f5
* prefix all symbols/constants with osmo_
* use stdint.h types instead of kernel types
* use Doxygen API documentation
* use Osmocom CRC16-CCITT functions
* use Osmocom bit-reversal functions
* integrate with Automake
Change-Id: I109085ab3e412c20b19cd42fb7137aa0e4167542
I've been importing from 94d7dbf108813ea45a91e27e9a8bd231d5a23fa7
but the isdnhdlc code hasn't seen any changes since 2012 anyway.
Change-Id: I3c58f9cb6921c2fdd0f2fcb11f622a0be88c7c63
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
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
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
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
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
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
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
Harald Welte
Kevin Redon
Neels Hofmeyr
Pau Espin
Philipp Maier
Daniel Willmann
Keith Whyte