Commit Graph

1464 Commits

Author SHA1 Message Date
Stefan Sperling 6afb3f5031 ensure unix socket paths are NUL-terminated for bind/connect
The unix(7) man page recommends that sun_path is NUL-terminated
when struct sockaddr_un is passed to a bind() or connect() call.
Non-NUL-terminated paths only need to be dealt with at the
receiving end of a UNIX domain socket.

Commit 896ff6d erroneously assumed otherwise.
This commit almost reverts 896ff6d: It only leaves the added
osmo_strlcpy() overflow check in place.

Change-Id: I6c4ac6b0a0eef4842beae4107f6f09f6cd29172a
Fixes: 896ff6db16
Related: OS#2673
2018-09-26 07:25:53 +00:00
Harald Welte 0d67f483e2 logging_vty: Ensure writing well-formed config files
We want to have well-formed config files that print exactly one space
per VTY/config node level, and not two.

Change-Id: Ia75c7067284ea225cffe13ca71bad05a7747ae66
2018-09-25 20:25:30 +02:00
Philipp Maier 8515d035ae gsm0808: add function to convert AMR S15-S0 to gsm0408 settings
Add a function to convert S0-S15 bits to struct gsm48_multi_rate_conf,
which hold the codec settings for AMR.

Change-Id: I973736273c236eee84decf15868190e339c3fed4
Related: OS#3548
2018-09-25 15:32:29 +00:00
Neels Hofmeyr 5398911ddb vty: omit HIDDEN from vty reference
During 'show online help', the XML vty node dump, omit all commands marked
HIDDEN.

These commands were already hidden from the VTY reference prior to commit
I1f18e0e41da4772d092d71261b9e489dc1598923, because of broken/confusing bit and
boolean logic mixup. After that commit, HIDDEN commands end up in the doc.  So
practically, this patch here brings back the status quo of before above commit,
even though the previous code clearly "intended" to list HIDDEN commands in the
reference but failed to have that effect.

AFAICT the complete list of commands currently hidden is:

* osmo-bsc: bts/"training_sequence_code <0-7>",
* osmo-bsc: ts/"phys_chan_config PCHAN" for uppercase pchans;
* osmo-bts: bts/"rtp bind-ip A.B.C.D" which actually says
  vty_out(vty, "%% rtp bind-ip is now deprecated%s", VTY_NEWLINE);
* osmo-sgsn: 'reset sgsn state' used for SGSN testing.

Note that the osmo-sgsn build was broken by including hidden commands in the
vty reference, since one of its hidden commands had missing doc strings and
made osmotestconfig.py signal failure. This would fix that from the
hide-hidden-commands angle, and so would osmo-sgsn commit
I8b6e8615e409266910f2f76a10ced9ab33e4de91 from the fix-the-doc-strings angle.

Change-Id: I92c3c66ff69c186234276c64478d6342e061d25e
2018-09-24 19:01:42 +02:00
Neels Hofmeyr a7557fe0f5 vty list: fix deprecation/hidden bit logic
If a command is both hidden and deprecated, still don't show it for the 'list'
command.

We currently have no such nodes, as it seems, though.

Related: OS#3584
Change-Id: I07ec15cab057a3e09064e0420a69121ee8eb4253
2018-09-24 06:40:04 +00:00
Neels Hofmeyr cf8def25d5 vty reference: fix deprecation bit evaluation
In vty_dump_nodes(), make sure the bitwise & is evaluated first.

For the deprecation flag (0x1), the practical effect is most likely identical,
assuming that the boolean ! operator flips the first bit, so I expect no
visible functional difference. It still was confusing and wrong to look at.

Related: OS#3584
Change-Id: I1f18e0e41da4772d092d71261b9e489dc1598923
2018-09-24 06:40:04 +00:00
Philipp Maier 369015c535 gsm0808_utils: constify parameter
parameter cfg in gsm0808_sc_cfg_from_gsm48_mr_cfg() is used read only.
Lets add a const to make this clear to the compiler.

Change-Id: I31e8d273b070b0afc446a298299d4f502d6c396b
2018-09-21 09:07:42 +02:00
Philipp Maier 5f2eb15074 gsm0808: add function to convert amr gsm0408 setings to gsm0808
Add a function to convert struct gsm48_multi_rate_conf, which holds the
codec settings for AMR, to S0-S15 bit representation as defined in
3GPP TS 48.008 3.2.2.49

This resurrects change-id I4e656731b16621736c7a2f4e64d9ce63b1064e98
which was reverted in I9e0d405e303ed86d23703ca6362e958dddb2f861
due to gsm0808_test failing.

The test failure is fixed by properly clearing the struct
gsm48_multirate_cfg prior to running tests (add memset(0)).

Change-Id: Ia782e21c206c15e840226d79b4209d13658ee916
Related: OS#3548
2018-09-19 14:01:10 +00:00
Neels Hofmeyr 28fc078f9c logging vty: add 'logging level set-all <level>'
Add new command to once-off set each and every category to the given log level,
as discussed at length on the openbsc@ mailing list.

Show that it works in logging_vty_test.vty.

Change-Id: I4c3e4f786476cb813fdc0a7c64f30ee04758309d
2018-09-16 23:09:56 +02:00
Neels Hofmeyr dd8c73cc6d Revert "gsm0808: add function to convert amr gsm0408 setings to gsm0808"
This reverts commit 2fd4fe6aa1.

As shown in https://jenkins.osmocom.org/jenkins/view/master/job/master-libosmocore/475/a2=default,a3=default,arch=amd64,label=osmocom-master-debian9/console

This commit breaks gsm0808_test with:

stderr:
--- expout	2018-09-16 22:37:31.382280438 +0200
+++ /n/s/dev/make/libosmocore/tests/testsuite.dir/at-groups/21/stdout	2018-09-16 22:37:31.426281372 +0200
@@ -78,9 +78,9 @@
 Input:
  m4_75= 0   smod=  0
  m5_15= 0   spare= 0
- m5_90= 0   icmi=  0
+ m5_90= 0   icmi=  1
  m6_70= 0   nscb=  0
- m7_40= 0   ver=   0
+ m7_40= 0   ver=   6
  m7_95= 0
  m10_2= 0
  m12_2= 0
@@ -92,9 +92,9 @@
 Input:
  m4_75= 1   smod=  0
  m5_15= 0   spare= 0
- m5_90= 0   icmi=  0
+ m5_90= 0   icmi=  1
  m6_70= 0   nscb=  0
- m7_40= 0   ver=   0
+ m7_40= 0   ver=   6
  m7_95= 0
  m10_2= 0
  m12_2= 0
@@ -106,9 +106,9 @@
 Input:
  m4_75= 0   smod=  0
  m5_15= 1   spare= 0
- m5_90= 0   icmi=  0
+ m5_90= 0   icmi=  1
[...]

Change-Id: I9e0d405e303ed86d23703ca6362e958dddb2f861
2018-09-16 21:02:25 +00:00
Philipp Maier 2fd4fe6aa1 gsm0808: add function to convert amr gsm0408 setings to gsm0808
Add a function to convert struct gsm48_multi_rate_conf, which holds the
codec settings for AMR, to S0-S15 bit representation as defined in
3GPP TS 48.008 3.2.2.49

Change-Id: I4e656731b16621736c7a2f4e64d9ce63b1064e98
Related: OS#3548
2018-09-14 16:24:10 +02:00
Neels Hofmeyr 9540c24058 logging vty: deprecate 'all', introduce 'force-all'
Add 'logging level force-all <level>' and 'no logging level force-all' as new
names for 'logging level all <level>' and 'logging level all everything'.

Resurrect the functionality of 'logging level all everything' -- even if it is
still deprecated because the name is confusing, it is now just an alias for
'no logging level force-all'.

Show in logging_vty_test.vty that we can now again lift the global logging
clamp, both with the new commands as well as with the deprecated ones.
Also show that 'force-all' is written back properly, if set.

Change-Id: I36f17c131cc70ce5a1aef62fd9693097de230cd4
2018-09-13 15:46:55 +00:00
Neels Hofmeyr 098038ab18 logging vty: write: check logging levels validity
Change-Id: If683b1272ad2d5b402b91c52c496aa7975bc6315
2018-09-13 15:46:55 +00:00
Neels Hofmeyr 7e0686c6b4 logging vty: deprecate the 'everything' keyword
The 'logging level all everything' has not had an effect for some time now. The
plan is to bring back its old functionality, but to keep it deprecated and
rather define a less confusing name.

* Deprecate 'everything'.
* Do not write 'everything' during 'write file' or 'show running-config', which
  we curiously still do until now.

BTW, the reason why we need to compose a complete list of categories for the
deprecated 'everything' command is explained in detail in the commit log for
I3b083f27e3d751ccec258880ae7676e9af959a63

Change-Id: Ib75fedb0572570a61bb34ee729a2af86cf5f16da
2018-09-13 15:46:55 +00:00
Neels Hofmeyr ba0762d6cb logging vty: rewrite 'logging level' vty cmd generation
Completely drop the implementations of log_vty_command_{str,description}().
These functions have been public API once, marked as deprecated since
c65c5b4ea0 (March 2017). I considered to keep
them, or reduce them to useless stubs, but it is quite silly, really. These
functions are completely and utterly useless outside of libosmocore. Any
program linking these deserves to fail.

Re-implement vty logging level command gen, in logging_vty.c. logging.c is
simply the wrong place for that.

Introduce logging_internal.h to share logging definitions to logging_vty.c
without publishing as API.

Introduce static gen_logging_level_cmd_strs() to compose a list of category
arguments with their descriptions for VTY commands. Use osmo_talloc_asprintf()
instead of the previous error prone and chaotic strlen() counting method.

Do not dynamically generate log level arguments, just keep static strings. We
are super unlikely to ever change the log levels we have.

No changes in logging_vty_test.vty: proves that there is no functional change.

All of this, besides introducing basic sanity, is cosmetic preparation to be
able to re-use the generic command generation code for arbitrary commands with
category or level args (for deprecated and new keywords).

Rationale: I want to hide 'all' and 'everything' from the VTY command
documentation, by means of deprecating. I first tried to simply define a
deprecated 'logging level CAT everything' command:

  logging level (all|rsl|rr|...) (debug|info|notice|error|fatal)
  logging level CAT everything                   # <- deprecated and hidden

But unfortunately, command matching doesn't work as intended when the CAT
argument reflects a valid category; I want it to invoke the deprecated function
as soon as the 'everything' keyword follows, but it stays stuck to the "valid"
command when the category argument matches an explicit keyword in that list,
and will throw an error on the following 'everything' keyword. I.e.:

  logging level rsl everything
  % Unknown command  # <-- leads to config file parse error

  logging level unknown_string everything
  % Ignoring deprecated 'everything'  # <-- works only for invalid categories

So I need to define 'everything' separately, again with a list of each valid
category instead of a generic CAT arg.

Change-Id: I3b083f27e3d751ccec258880ae7676e9af959a63
2018-09-13 15:46:55 +00:00
Neels Hofmeyr 2c79d55934 gsm0808: implement BSSMAP Classmark Request
Related: OS#3043
Change-Id: I4a2e1d3923e33912579c4180aa1ff8e8f5abb7e7
2018-09-13 14:27:26 +00:00
Neels Hofmeyr 7c749893bf add osmo_str_tolower() and _toupper() with test
We already have osmo_str2lower() and osmo_str2upper(), but these lack:
* proper destination buffer bounds checking,
* ability to call directly as printf() argument.

Deprecate osmo_str2upper() and osmo_str2lower() because of missing bounds
checking.

Introduce osmo_str_tolower_buf(), osmo_str_toupper_buf() to provide
bounds-safe conversion, also able to safely convert a buffer in-place.

Introduce osmo_str_tolower(), osmo_str_toupper() that call the above _buf()
equivalents using a static buffer[128] and returning the resulting string
directly, convenient for direct printing. Possibly truncated but always safe.

Add unit tests to utils_test.c.

Replace all libosmocore uses of now deprecated osmo_str2lower().

Naming: the ctype.h API is called tolower() and toupper(), so just prepend
'osmo_str_' and don't separate 'to_lower'.

Change-Id: Ib0ee1206b9f31d7ba25c31f8008119ac55440797
2018-09-07 04:28:39 +02:00
Neels Hofmeyr 03e7553cba api doc: fix osmo_quote_str_*
Change-Id: Ibfd8ff213630e34009936b0fcb3ee50dda65fb70
2018-09-07 03:51:54 +02:00
Alexander Chemeris 50f7d74fca coding: Always initialize bit counters in gsm0503_pdtch_egprs_decode().
Previsouly there were a lot of valid code paths which returned from the function
before setting bit counters which led to bogus BER output in osmo-bts-trx logs
when those code paths were hit.

Change-Id: I4722cae3794ccbb12001113c991d9cf345a52a96
2018-09-05 16:08:34 +03:00
Alexander Chemeris 9444326158 coding: Correctly count bits when decoding EDGE bursts with MCS >= 7.
They consist of two blocks, so we should count both blocks.

Change-Id: I560de192212dae4705054a1665726369b83d213a
2018-09-05 16:08:16 +03:00
Keith Whyte 3cdaa8d525 Add CC_CAUSE value_string array
Adds a value_string array for GSM 04.08 Call Control
cause values

Change-Id: I296f208581ce2550805f9d96e20f7319e1199023
2018-09-02 12:33:54 +02:00
Stefan Sperling 896ff6db16 Properly deal with sockaddr_un socket path length limitations.
In osmo_sock_unix_init(), add support for non-NUL-terminated unix
socket paths and return an error if the supplied socket path exceeds
the maximum socket path length supported by the operating system.

Change-Id: I19d935e5e3dd7928e6e153c6f5ad7044de726016
Related: OS#2673
2018-08-29 07:39:55 +00:00
Stefan Sperling 3953f41bbd properly handle mandatory cli param of gsm0808_create_paging2
The cell identifier list parameter is mandatory. Document it as
such, and tweak code which treated it like an optional parameter.

No functional change. The existing code already asserts that
a non-NULL value is passed for this parameter.

Change-Id: I3716f9d5b210e0a7e6f45c9fe3fc34024e5234ad
Related: OS#3021
2018-08-29 07:38:11 +00:00
Neels Hofmeyr 43c266f6c6 gsm0808: inter-bsc HO messages: add missing BSSMAP header, x4
Change-Id: I9e128ba775227de5e4010f024338a78584f777ea
2018-08-28 19:41:06 +00:00
Neels Hofmeyr 77ae45d22f log: add 'last' option to 'logging print file'
Allow printing the source file information *after* the log information.

Add target->print_filename_pos, log_set_print_filename_pos() and enum
log_filename_pos, and the optional 'last' keyword to the 'logging print file'
vty command. (An enum in case we want to add other positions later.)

Rationale: on log lines, the logging context is usually printed first in the
logging text. Without the source file information, this logging context pretty
much aligns in an easily readable way. When adding the source file information,
each line's logging context info is shifted right by a pretty much random
amount and it is hard to spot recurring logging contexts.

One solution is to switch off source file info, of course, but that's not an
option when actively hacking on bugs and new features.

For example, it is unnecessarily hard to spot lchan FSM related log lines in
this osmo-bsc log snippet:

DRSL NOTICE mgw_endpoint_fsm.c:603 mgw-endpoint(conn0){WAIT_MGW_RESPONSE}: Freeing instance
DRSL NOTICE fsm.c:381 mgw-endpoint(conn0){WAIT_MGW_RESPONSE}: Deallocated
DMSC NOTICE mgw_endpoint_fsm.c:603 SUBSCR_CONN(conn0){CLEARING}: Received Event FORGET_MGW_ENDPOINT
DCHAN DEBUG lchan_rtp_fsm.c:741 lchan(0-0-1-TCH_F-0){WAIT_RLL_RTP_ESTABLISH}: Received Event LCHAN_EV_RTP_RELEASED
DCHAN DEBUG lchan_rtp_fsm.c:520 lchan_rtp(0-0-1-TCH_F-0){ROLLBACK}: Freeing instance
DCHAN DEBUG fsm.c:381 lchan_rtp(0-0-1-TCH_F-0){ROLLBACK}: Deallocated
DCHAN DEBUG lchan_rtp_fsm.c:520 lchan(0-0-1-TCH_F-0){WAIT_RLL_RTP_ESTABLISH}: Received Event LCHAN_EV_RTP_RELEASED
DCHAN DEBUG lchan_fsm.c:1232 lchan(0-0-1-TCH_F-0){WAIT_RLL_RTP_ESTABLISH}: state_chg to WAIT_RF_RELEASE_ACK
DRSL NOTICE handover_fsm.c:762 handover(interBSCin_conn0){WAIT_RR_HO_DETECT}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
DRSL NOTICE handover_fsm.c:762 handover(interBSCin_conn0){WAIT_RR_HO_DETECT}: Freeing instance
DRSL NOTICE fsm.c:381 handover(interBSCin_conn0){WAIT_RR_HO_DETECT}: Deallocated
DCHAN DEBUG lchan_fsm.c:1196 lchan(0-0-1-TCH_F-0){WAIT_RF_RELEASE_ACK}: state_chg to BORKEN
DCHAN DEBUG lchan_fsm.c:354 lchan(0-0-1-TCH_F-0){BORKEN}: (type=TCH_F) Clearing lchan state
DLMGCP DEBUG mgcp_client.c:741 Tx MGCP msg to MGCP GW: 'DLCX 3 2@mgw MGCP 1.0'
DLMGCP DEBUG mgcp_client.c:743 Sending msg to MGCP GW size: 66
DRLL NOTICE mgcp_client_fsm.c:422 MGCP_CONN(to-BTS){ST_DLCX_RESP}: Received Event EV_DLCX_RESP

Placing the source file info behind the log text makes it much easier to
follow, while the source file info is still available:

DRSL NOTICE mgw-endpoint(conn0){WAIT_MGW_RESPONSE}: Freeing instance (mgw_endpoint_fsm.c:603)
DRSL NOTICE mgw-endpoint(conn0){WAIT_MGW_RESPONSE}: Deallocated (fsm.c:381)
DMSC NOTICE SUBSCR_CONN(conn0){CLEARING}: Received Event FORGET_MGW_ENDPOINT (mgw_endpoint_fsm.c:603)
DCHAN DEBUG lchan(0-0-1-TCH_F-0){WAIT_RLL_RTP_ESTABLISH}: Received Event LCHAN_EV_RTP_RELEASED (lchan_rtp_fsm.c:741)
DCHAN DEBUG lchan_rtp(0-0-1-TCH_F-0){ROLLBACK}: Freeing instance (lchan_rtp_fsm.c:520)
DCHAN DEBUG lchan_rtp(0-0-1-TCH_F-0){ROLLBACK}: Deallocated (fsm.c:381)
DCHAN DEBUG lchan(0-0-1-TCH_F-0){WAIT_RLL_RTP_ESTABLISH}: Received Event LCHAN_EV_RTP_RELEASED (lchan_rtp_fsm.c:520)
DCHAN DEBUG lchan(0-0-1-TCH_F-0){WAIT_RLL_RTP_ESTABLISH}: state_chg to WAIT_RF_RELEASE_ACK (lchan_fsm.c:1232)
DRSL NOTICE handover(interBSCin_conn0){WAIT_RR_HO_DETECT}: Terminating (cause = OSMO_FSM_TERM_REGULAR) (handover_fsm.c:745)
DRSL NOTICE handover(interBSCin_conn0){WAIT_RR_HO_DETECT}: Freeing instance (handover_fsm.c:745)
DRSL NOTICE handover(interBSCin_conn0){WAIT_RR_HO_DETECT}: Deallocated (fsm.c:381)
DCHAN DEBUG lchan(0-0-1-TCH_F-0){WAIT_RF_RELEASE_ACK}: state_chg to BORKEN (lchan_fsm.c:1196)
DCHAN DEBUG lchan(0-0-1-TCH_F-0){BORKEN}: (type=TCH_F) Clearing lchan state (lchan_fsm.c:354)
DLMGCP DEBUG Tx MGCP msg to MGCP GW: 'DLCX 3 12@mgw MGCP 1.0' (mgcp_client.c:741)
DLMGCP DEBUG Sending msg to MGCP GW size: 67 (mgcp_client.c:743)
DRLL NOTICE MGCP_CONN(to-BTS){ST_DLCX_RESP}: Received Event EV_DLCX_RESP (mgcp_client_fsm.c:422)

Implementation: for 'last', insert source file info only when an '\n' is found
at the end of the log line composition buffer, so that LOGP()...LOGPC()
constructs also print source file info only when a log line actually ends.

Change-Id: I393907b3c9e0cc1145e102328adad0a83ee13a9f
2018-08-27 20:52:04 +02:00
Philipp Maier b8a91625dd gsmtap_util: make sure SO_REUSEADDR is applied for GSMTAP
When gsmtap adding a new sink it does not supply OSMO_SOCK_F_UDP_REUSEADDR
in order to have SO_REUSEADDR applied. In most cases, the gsmtap sink is
just receiving packets to toss them immediately, so having one of them
is sufficient.  However, in other use cases - particularly virt_phy -
we actually want to receve and process GSMTAP messages via multicast
Applying SO_REUSEADDR (like we did before disabling it globally for UDP
in I4a8ffb8d598aca88801a4a0322944d7cdd8d4047 on August 1st) resolves
the issue.

Change-Id: I1399a428467ca12f1564a14eb8ffb294d4f59874
Related: OS#3497
2018-08-24 10:31:18 +00:00
Philipp Maier 73196e77fb socket: add flag to enforce SO_REUSEADDR on UDP sockets
When IPPROTO_UDP is used then SO_REUSEADDR omitted since UDP is
connection less we do not have to wait until lingering connections time
out. There were also negative effects such as that two applicatications
could use the same UDP port, normally one of the two applications would
get an error, but with SO_REUSEADDR this is supressed. However, there
are applications (UDP MULTICAST) where two applications must be able to
use the same port. In the osmocom project those are osmo-bts-virtual,
virtphy and gsmtap in general.

Lets introduce a flag that the API user can supply in order to have
SO_REUSEADDR applied.

- Add new flag OSMO_SOCK_F_UDP_REUSEADDR

Change-Id: I94aaf6d5224ab23bde5ea5c4a83569b6145ab32b
Related: OS#3497
2018-08-23 20:17:45 +02:00
Pau Espin 8a757d20f7 ipa: Document ipa_msg_recv* functions
Change-Id: Ie81e9dd9f9936a414e7cebb2bccffa6f42a302a7
2018-08-22 14:17:58 +02:00
Neels Hofmeyr 983dcb9af3 use __FILE__, not __BASE_FILE__
The intention was to use the file's basename, but __BASE_FILE__ means "the root
file that is being parsed and contains #include statements".

If we had a function using __BASE_FILE__ and that was defined in an #included
file, __BASE_FILE__ would indicate the first file where the #include is, and
not the file where the function is defined. __BASE_FILE__ works for us because
we don't ever include function definitions that log something, so __BASE_FILE__
always coincides with __FILE__ for our logging; but still __BASE_FILE__ is
semantically the wrong constant.

Related: OS#2740
Change-Id: Ibc1d3746f1876ac42d6b1faf0e5f83bd2283cdcc
2018-08-20 20:23:18 +00:00
Pau Espin b3a9820bfc vty: Makefile: Fix LIBVERSION typo introduced in 0.12.0 release
Setting age to 5 is cleary an error, it should be increment by one
instead as APIs were added 0.11->0.12 and none modified or removed.

Change-Id: I3b3bc808349bc2f949ef9eef64f39e7202ddf946
2018-08-20 15:51:29 +02:00
Pau Espin 0b6fcb0349 signal: Introduce API osmo_signal_talloc_ctx_init
Otherwise applications need to use "extern void* tall_sigh_ctx" and set
it manually (that symbol is not exported in any header file) or end up
allocating struct signal_handler into the NULL talloc ctx.

API created in a similar way as already existing msgb_talloc_ctx_init(),
but without the pool_size because it's not considered necessary in this
case.

Change-Id: Id58ca18eb826b8f4183a7cf0dbb2b38cba702a09
2018-08-16 21:03:32 +02:00
Alexander Couzens acc0a070c7 bssgp: introduce flush queue functions
To reset the state of BSSGP allow to flush the BSSGP queues.
When testing (with TTCN3) the test object should be resetted between
each test.

Introduce the functions:
bssgp_fc_flush_queue() - flushs a single flow control object
bssgp_flush_all_queues() - flushs queues of all BSSGP connections

Change-Id: I29b6ad6742ddf9b0b58b4af37d9a1cf18e019325
2018-08-10 06:55:43 +00:00
Vadim Yanitskiy 30cfeeb4a0 libosmogsm: (re)introduce gsm48_push_l3hdr()
There was gsm0480_l3hdr_push() declared in a header file, but
not exposed in 'libosmogsm.map'. Furthermore, for some reason
it was a part of GSM 04.80 API, what is not actually correct.

Let's rename this symbol, and properly expose it as a part of
the GSM 04.08 API. Also, let's introduce an auxiliary wrapper
for messages, where the transaction identifier is required
(see GSM 04.07, section 11.2.3.1.2).

Change-Id: I8a045efe8335d83fcbe8d43eb180972e3b1d9dda
2018-08-05 23:21:43 +07:00
Vadim Yanitskiy 39a36d0193 gsm/gsm0480.c: use the local msgb allocator
Change-Id: I23b4b0e1c237b9b27c1db1c9a824b5329d41a38b
2018-08-05 14:48:27 +07:00
Vadim Yanitskiy 3fc4616224 gsm/gsm0480.c: prevent NULL-pointer dereference
Change-Id: I444d95941837458b46e581298f76f3a9926c8552
2018-08-05 07:14:19 +00:00
Mykola Shchetinin 893e49e993 vty/vty.c: fix bug in vty_config_write
the vty_config_write function should write:
line vty
 login
to the configuration file when the login is enabled. Otherwise after
saving the configuration the next login will be performed without
password checking (password_check variable will be 0 though it must be 1)

Change-Id: I39050b6bf617dac10d3fccc3106f67bdcca1d05a
2018-08-05 07:01:53 +00:00
Kevin Redon 7ecb034f87 comp128v23 (minor): update original code site and author
I was contacted by the (previously unknown) author who provided
the new location of the original code.

Change-Id: I2dabab20ad018ce473817986bdb250131c010bf1
2018-08-04 17:23:23 +02:00
Philipp Maier 99f706d336 socket: do not set SO_REUSEADDR for IPPROTO_UDP
When UDP is used as protocol (proto=IPPROTO_DUP), then we should not set
SO_REUSEADDR in the socket option. Because if we do, we allow two
processes to bind on the same UDP port. The errornous situation will be
undetectable to both applications. So lets only set SO_REUSEADDR when we
do not use UDP.

- Add check if we use UDP, if yes do not set SO_REUSEADDR

Change-Id: I4a8ffb8d598aca88801a4a0322944d7cdd8d4047
Related: OS#3441
2018-08-02 11:19:38 +02:00
Philipp Maier 0659c5d2f3 socket: check return code of setsockopt
the return code of the last setsockopt() call in osmo_sock_init() is not
checked. Since all other calls to setsockopt are checked, lets check
this one as well.

- check return code of setsockopt() and close the socket on failure

Change-Id: I96dbccc3bcff35bf39979dbe0c44aadc8ce20c83
2018-08-02 11:19:38 +02:00
Harald Welte 5a7740d1db re-introduce ipa_ccm_idtag_parse_off()
In the previous commit we deprecated ipa_ccm_idtag_parse() but
also removed ipa_ccm_idtag_parse_off(), for which I couldn't find
any users.  However, legacy openbsc.git still uses this function,
so let's re-introiduce it in its original form.

Change-Id: Ibfe53b04340eb355c8bfb8453a2af1522a4b6baf
2018-08-01 17:42:06 +02:00
Harald Welte 7869baf843 Deprecate ipa_ccm_idtag_parse() with ipa_ccm_id_{get,resp}_parse()
In the past, the function ipa_ccm_idtag_parse() was used to parse
the payload of IPA CCM ID RESP packets.  However, the function was
based on a possible misunderstanding of the message encoding, and
callers actually counted the first (upper) length nibble as part
of the header and passed a pointer to the second
(lower) length nibble of the first TLV into this function.  As such,
it was unfixable, and had to be replaced with a new function called
ipa_ccm_id_resp_parse().  At the same time, we also add
ipa_ccm_id_get_parse() to parse the slightly different format of
the IPA CCM ID GET payload.

We can never be 100% sure what is "correct", as our understanding
of the protocol is entirely based on protocol analysis, without any
official documentation available.

This patch also introduces unit test coverage for both of the new
functions.

Revert "ipa: Add libosmogsm.map entry for ipa_ccm_idtag_parse_off"
This reverts commit 7f31c90b80.

Revert "ipa: Properly parse LV stream of a ID_GET request"
This reverts commit f558ed4bb9.

It introduced a function/behavior that was not originally intended:
The parse of IPA CCM ID GET (8bit length followed by 1 byte tag
and variable-length payload) instead of the IPA CCM ID RESP (16bit
length followed by 1 byte tag and variable-length payload).

Change-Id: I1834d90fbcdbfcb05f5b8cfe39bfe9543737ef8f
2018-08-01 13:38:17 +02:00
Harald Welte 9b04c17c7a oap_client: Rename symbols with osmo_ prefix
As we're moving this to a common/shared library now, we need to use
the osmo_ namespace prefix for symbol names, struct/type names and
constants.

Change-Id: Ie36729996abd30b84d1c30a09f62ebc6a9794950
2018-07-30 12:50:51 +02:00
Harald Welte fdd366ed1b import oap_client into libosmogsm
This imports the code from osmo-msc 6afef893e17bce67e4d4119acd34d480ed03ba77
with minimal changes to make it compile.  Symbol renaming to osmo_
prefix is done separately in a follow-up patch to have a as-clean-as-possible
import first.

Change-Id: I9bc38102318da02d1fe46ef516df3cfd6bf8e3da
2018-07-30 12:16:11 +02:00
Vadim Yanitskiy baed91709c vty/vty.c: remove dead unused tall_bsc_ctx
Change-Id: I160728544c0effe45757df22f1ff2314fcb13dd1
2018-07-30 03:43:00 +07:00
Harald Welte 7ecc4a3171 04.80: New gsm0480_gen_{reject,return_error}() functions
Add functions to generate TS 04.80 (supplementary services)
Reject and ReturnError components.

Change-Id: I6e5ee39c3d03364f7833ec717593d5ddb0a4c5f9
2018-07-29 14:39:36 +00:00
Harald Welte b0d9594081 USSD: Introduce gsm0480_gen_ussd_resp_7bit()
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
2018-07-29 14:39:36 +00:00
Harald Welte 88fa5a3e1e gsm0480: Factor out msgb allocation helper function
Change-Id: If25b467481023eadaaf3f78157eceff4b81d24d2
2018-07-29 14:39:36 +00:00
Alexander Couzens 49865053bc ctrl/vty: fsm: use correct element when iterating over fsm->proc.children
Fixes crashes when using vty `show fsm-instances all`
when fsm children are present.

Change-Id: I4ae0bee7f7f57ec6675cfb52ca6cf0d523d15362
2018-07-29 14:35:00 +00:00
Neels Hofmeyr 1cea7b5a97 fix strncpy bugs in socket.c
Change-Id: Iddf36d26b23dcef4f9b291fd7ead1907e38c3486
2018-07-27 18:15:44 +00:00
Neels Hofmeyr ebe4ef7383 fix strncpy bugs in gsm/ipa.c
Change-Id: I423a24c55c9b9aa6fc8f501df94fe54c71ee2b2b
2018-07-27 18:15:44 +00:00