Commit Graph

1778 Commits

Author SHA1 Message Date
Pau Espin c68e97012c rlc: Drop unused function gprs_rlc_data::put_data
Change-Id: I10eb93a1aa6ac1eac15c8e64da300caf2e6ccc44
2020-05-18 11:07:03 +02:00
Pau Espin 7b9e56a500 sysmo: femtobts.h: Avoid redefining global variables
Change-Id: I0f04726ae608f499c557cedffb4d86625bccbd5a
2020-05-18 11:07:03 +02:00
Pau Espin 09afd6f230 pcu: tbf_ul: Clean up maybe_schedule_uplink_acknack()
Get rid of checking all conditions twice, and update one log message.

Change-Id: I95831991b01961e4b7faddb08d27133acb0ab4d4
2020-05-15 17:03:46 +02:00
Pau Espin 97e88fd35f bts: Drop specific functions to add values to stats
Change-Id: I877a9c9a35b6c94c3dd6b1ab3019bc57f6c8568a
2020-05-14 11:19:05 +00:00
Pau Espin a107f8f496 bts: Drop specific functions to add values to counters
It's super annoying seeing lots of functions being called everywhere
only to find out they are only incrementing a counter. Let's drop all
those functions and increment the counter so people looking at code
doesn't see dozens of code paths evyerwhere.

Most of the commit was generated by following sh snippet:
"""
 #!/bin/bash
define_pattern="^CREATE_COUNT_ADD_INLINE"
generic_func="do_rate_ctr_add"
grep -r -l "${define_pattern}" . | xargs cat | grep "${define_pattern}("| tr -d ",;" | tr "()" " " | awk '{ print $2 " " $3 }' >/tmp/hello

while read -r func_name ctr_name
do
 #echo "$func_name -> $ctr_name";
files="$(grep -r -l "${func_name}(" .)"
for f in $files; do
echo "$f: $func_name -> $ctr_name";
sed -i "s#${func_name}(#${generic_func}(${ctr_name}, #g" $f
done;
done < /tmp/hello

grep -r -l "void ${generic_func}" | xargs sed -i "/void ${generic_func}(CTR/d"
grep -r -l "$define_pattern" | xargs sed -i "/$define_pattern/d"
"""

Change-Id: I966221d6f9fb9bb4f6068bf45ca2978008a0efed
2020-05-14 11:19:05 +00:00
Pau Espin 2338e5318e bts: Drop specific functions to increase counters
It's super annoying seeing lots of functions being called everywhere
only to find out they are only incrementing a counter. Let's drop all
those functions and increment the counter so people looking at code
doesn't see dozens of code paths evyerwhere.

Most of the commit was generated by following sh snippet:
"""
 #!/bin/bash
grep -r -l ^CREATE_COUNT_INLINE . | xargs cat | grep "^CREATE_COUNT_INLINE("| tr -d ",;" | tr "()" " " | awk '{ print $2 " " $3 }' >/tmp/hello

while read -r func_name ctr_name
do
 #echo "$func_name -> $ctr_name"
files="$(grep -r -l "${func_name}()" .)"
for f in $files; do
echo "$f: $func_name -> $ctr_name";
sed -i "s#${func_name}()#do_rate_ctr_inc(${ctr_name})#g" $f
done;
done < /tmp/hello

grep -r -l "void do_rate_ctr_inc" | xargs sed -i "/void do_rate_ctr_inc(CTR/d"
grep -r -l "CREATE_COUNT_INLINE" | xargs sed -i "/^CREATE_COUNT_INLINE/d"
"""

Change-Id: I360e322a30edf639aefb3c0f0e4354d98c9035a3
2020-05-14 11:19:05 +00:00
Pau Espin 5dc6e465cb Drop unneeded arg 'ta' in tbf_alloc_ul()
The function is simply setting the ta on the ms, so simply make sure ta
is set on callers before passing the ms object.

Change-Id: Iebb9c57f458690e045ddc45c800209ad8cf621e0
2020-05-14 11:19:05 +00:00
Pau Espin ce60011e77 pdch: rcv_resource_request(): Clarify tbf_free only needed if MS used to exist beforehand
Variable found is used to always call Guard() on MS to avoid possible
unexpected freeing regressions.

Change-Id: I62f24fe04ca10fca19bedda288fe3ed3ce75413f
2020-05-14 11:19:05 +00:00
Philipp Maier de0e558baf gprs_debug: Use only LOGL_NOTICE as default loglevel
The default loglevels of some log categories are configured to
LOGL_INFO. This is still to verbose, lets use LOGL_NOTICE here.

Change-Id: Ibb1cd1a94fb4fdd0147e073f8c1c82562c2c14ef
Related: OS#2577
2020-05-13 16:41:55 +00:00
Pau Espin 322456ed47 Expect ms object to exist before calling tbf_alloc_dl_tbf()
Same as previous commit, this time for the DL counterpart.

Change-Id: I87f6cdf8288a688466020bda0874e68b57aa71c4
2020-05-12 17:09:20 +00:00
Pau Espin 17402a5902 Expect ms object to exist before calling tbf_alloc_ul_tbf()
It's really non-sense from architectural point of view to pass an
optional pointer to the MS holding the TBF and creating it otherwise.
TBFs shouldn't be creating MS they belong too.

This simple change requiring so many code line changes really exhibits
how badly entangled the object relationship is.

Another commit will follow doing the same for dl tbf.

Change-Id: I010aa5877902816ae246e09ad5ad87946f96855c
2020-05-12 17:09:20 +00:00
Vadim Yanitskiy f094b46d1c fix egprs_mslot_class_from_ra(): multislot class may not be present
For more details, see 3GPP TS 44.060, table 11.2.5a.2.

Change-Id: Iba0466b29afd26cff317ed4fb6749f8a3079f16a
Signed-off-by: Vadim Yanitskiy <axilirator@gmail.com>
Related: OS#1548
2020-05-11 20:06:39 +00:00
Pau Espin db9ea55c6e Use OSMO_FD_* instead of deprecated BSC_FD_*
New define is available since libosmocore 1.1.0, and we already require
1.3.0, so no need to update dependenices.
Let's change it to avoid people re-using old BSC_FD_* symbols when
copy-pasting somewhere else.

Change-Id: Ida8fd3bd7347163567acde34ad67aefee913b0ea
2020-05-09 19:18:06 +02:00
Pau Espin e6bca376aa bts: Return uint8_t in egprs_mslot_class_from_ra()
MultislotClass is 5 bit long, so an uint8_t is enough.
In most places we are already storing multislot class as uint8_t.

Change-Id: I1dcaff9d69379453a0b794e5f36b820f5f78531f
2020-05-08 16:37:25 +02:00
Pau Espin 98eb03c391 bts: Fix Decoding EGPRS MultislotClass from 11-bit EGPRS PACKET CHANNEL REQUEST
In osmo-pcu datatructures, the variables holding multislot classes
simply contain an integer referring to the multislot class number,
instead of coding from 3GPP TS 44.060 Table 11.2.5.3 and Table
11.2.5a.3.

So coding Multislot class 3 is stored as 0x03 in osmo-pcu variables,
while in 3GPP TS 44.060 coding it's coded as 0x02 (N-1).
This allows us using value 0x00 to designate a "yet unknown (EGPRS) Multislot
class".
Hence, we need to add 1 to the decoded value to match our data
structures.

Change-Id: Id3b121272bb7e84c0542ae9b4ce09598c6054edd
2020-05-08 16:35:51 +02:00
Pau Espin 9ee90d2323 bts: Rename mslot_class_from_ra
This function is actually returning an EGPRS multislot class, so let's
update naming. The variable using the return value was already being
passed as egprs_ms_class to tbf_alloc_ul_tbf().

Change-Id: Idb51836c8c9dd4e865bf2cb0b0c24155662f2ae8
2020-05-08 16:34:50 +02:00
Pau Espin acd67cbdf1 tbf: Avoid crash: don't set TBF window size if setup failed
Should fix assertion triggered due to the tbf not set up properly
beforehand.

Fixes: OS#4524
Change-Id: I267b147520ef5a50f40ad4bc19e7b5fb3e708127
2020-05-08 13:50:54 +02:00
Pau Espin 20331ae5f6 pdch: Avoid sending GSMTAP_CHANNEL_UNKOWN for rejected UL EGPRS data block
Even if we don't accept it, let's submit GSMTAP with correct channel.
We don't return error like in code below, because otherwise the generic
UNKNOWN gsmtap message will be sent.

Change-Id: I853679ce8907d46fcb84ae4127335c10623f09c9
2020-04-29 21:02:12 +02:00
Pau Espin 3301cc900e pcu_l1_if: Don't use GSMTAP_CHANNEL_PACCH when sending unknown gsmtap blocks
It's actually counter-productive when analyzing wireshark traces, since
one may not spot a decoding issue and assume PACCH is sent on the wrong
TS.

Change-Id: I7a96148f1ca1ebfa88a3ff714ea3bb8798866046
2020-04-29 20:56:31 +02:00
Vadim Yanitskiy 3f27fb56e4 TBF/UL: fix rcv_data_block_acknowledged(): print the actual TLLI
Change-Id: I71b5c656d4b318d11bd5fe2b5d163c3a06e09a6a
2020-04-20 13:18:49 +07:00
Vadim Yanitskiy 72ec18ce5a sba: fix possible memleak in SBAController::alloc()
Change-Id: I417eda155cd5b1e46dd0b05db3f507abd79121d1
2020-04-20 11:25:05 +07:00
Harald Welte a4e8c10a38 TODO: remove those that have obviously been implemented 5+ years ago
The TODO file hasn't seen any updates sicne 2014, while the code has
evolved.  I'm not sure about some of the topics, but at least several
can for sure be removed by now

Change-Id: I56581c9b2a08edb1b6d4dc53ad9eb6fdd1800a0d
2020-04-17 16:02:26 +00:00
Eric Wild 2e90a1f015 configure.ac: fix libtool issue with clang and sanitizer
As pointed out at https://github.com/libexpat/libexpat/issues/312
libtool does not play nice with clang sanitizer builds at all.
For those builds LD shoud be set to clang too (and LDFLAGS needs the
sanitizer flags as well), because the clang compiler driver knows how
linking to the sanitizer libs works, but then at a later stage libtool
fails to actually produce the shared libraries and the build fails. This
is fixed by this patch.

Addtionally LD_LIBRARY_PATH has no effect on conftest runs during
configure time, so the rpath needs to be set to the asan library path to
ensure the configure run does not fail due to a missing asan library,
i.e.:

SANS='-fsanitize=memory -fsanitize-recover=all -shared-libsan'
export CC=clang-10
ASANPATH=$(dirname `$CC -print-file-name=libclang_rt.asan-x86_64.so`)
export LDFLAGS="-Wl,-rpath,$ASANPATH $SANS $LDFLAGS"

Change-Id: I999adf84a34c03765ce6c32ece0e61d0ac6e1c13
2020-04-11 01:19:46 +02:00
Vadim Yanitskiy b30f28f38d l1if: fix pcu_rx_rach_ind(): use proper format string specifiers
Change-Id: If95362ef4cc203a60856d6b47d95d441813a5c19
2020-04-02 05:42:57 +07:00
Pau Espin c374ab00ac csn1: Remove code block from CSN_NEXT_EXIST_LH
It was removed in wireshark.git e8407dd6c1378427daee77e8de540d0b5f7a0b73
and it's not there anymore in current master.

Change-Id: I73f4eeca3fd4f00a5bc4f06ef7a9bb9b8a70e37b
2020-03-30 10:08:02 +00:00
Pau Espin c8280a538a csn1: Properly verify CSN_BITMAP length
Change-Id: I9f7672b534f9345caff99095504749eebad25adb
2020-03-30 10:08:02 +00:00
Pau Espin f5e275aec0 csn1: verify enough bits present to decode whole CSN_UINT_ARRAY
Change-Id: I4a762a8fec4153b53e10df1ec8ba3708c1f47649
2020-03-30 10:08:02 +00:00
Pau Espin 70a211747b csn1: Fix Several typos & whitespace
Change-Id: Ibe31d52d4a5a4015196d73681082f68b99a80c77
2020-03-30 10:08:02 +00:00
Pau Espin 99eb353337 rlcmac: add dissection of 2G->3G/4G PS handover
Port from wireshark.git 428ee66ae1c524b49f9043729b1f1e9b4f52f409, from
Pascal Quantin.

The original commit is also changing the RRC_Container field to
M_CALLBACK, but we leave them as M_VAR_ARRAY since the callback is
basically used to add more dissection information in wireshark.

Change-Id: I0f374e78300efddff00c4df26a401adcdee18a12
2020-03-30 10:08:02 +00:00
Pau Espin f3ac06bbaf rlcmac: support decode FDD_CELL_INFORMATION of "UTRAN FDD Description
Port of patch (+ later fixes squashed) of wireshark.git commit
dea5452b95dfaf18e38670a8e2b3b38f9175fdfd, from Lei Chen:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6856

Squashed wireshark.git fix commits:
774be29de0b4d93d01aecb1518c41d7d551071a9
51c31cd7bd3d8fc196a9f90a8af466ad84e9e6a8
6aca10831f86c562970b13efa811f46e25ee3091
c1ceac58cdb77051e9bd14c1f6f7669cf5779a86

Change-Id: I08523bc1bbdffde479ef974b4c7b56cfa5639591
2020-03-30 10:08:02 +00:00
Pau Espin b2653fe619 Move gsm_rlcmac.cpp -> .c
Original file from wireshark.git (packet-gsm_csn1.c) is being built and
maintained as a C file. There's no real need for us to maintain it as a
C++, and doing so will make both files derive over time (as already
happened). Let's keep it as a C compiler (which btw seems to be more
strict) to make it easier to port patches back and forth wireshark.git.

Take the chance to move some declarations we added to csn1.h to be able
to build it out of wireshark. Let's keep those in a separate header file
to ease looking for differences.

Change-Id: I818a8ae947f002d35142f9f5473454cfd80e1830
2020-03-30 10:08:02 +00:00
Pau Espin 799cf8221a gsm_rlcmac: Disable unused CSN1 descriptors
When switching to C compiler, it will warn/error. Use #if 0 as in the
original wireshark.git epan/dissectors/packet-gsm_rlcmac.c code.

Change-Id: If1be50947c02208f15892d99edeb394fb4f52b75
2020-03-30 10:08:02 +00:00
Vadim Yanitskiy d2e50e7f21 fix: properly include pure C headers from C++ code
Header files included from libosmocore may potentially contain
some language constructions allowed in C but not in C++, such
as type casting. Let's add 'extern "C" { ... }' and be safe.

Change-Id: I7197f7b34f30b49d5397506ce9d67cbf0e2cc196
2020-03-29 01:46:36 +07:00
Pau Espin a0cbde700a tbf.cpp: Include c++ <new> header required for new operator's replacement type
Including the <new> header is required as explained by the c++ specs [1]

osmo-pcu/src/tbf.cpp: In function ‘gprs_rlcmac_ul_tbf* tbf_alloc_ul_tbf(gprs_rlcmac_bts*, GprsMs*, int8_t, uint8_t, uint8_t, bool)’:
osmo-pcu/src/tbf.cpp:1002:39: error: no matching function for call to ‘operator new(sizetype, gprs_rlcmac_ul_tbf*&)’
 1002 |  new (tbf) gprs_rlcmac_ul_tbf(bts->bts);
      |                                       ^

Most of the times this issue is not detected because other STL headers
are already including <new>.

[1] http://www.cplusplus.com/reference/new/operator%20new/

Change-Id: Ie5fb536ae29dcf40e2a0dbe67432bebd61b8c7aa
2020-03-27 15:06:41 +00:00
Vadim Yanitskiy ce160147f4 pdch: cosmetic: use GSM_MI_TYPE_* constants from libosmocore
Change-Id: I1d85c8eded68bc8aa8e90c33b36d335fa775ded2
2020-03-27 14:55:22 +00:00
Vadim Yanitskiy d71c566ee6 pdch: fix packet_paging_request(): properly print paging MI
This problem problem was discovered by the Undefined Behavior Sanitizer:

  pdch.cpp:210:4: runtime error: load of misaligned address
                  0x60c00002abf2 for type 'uint32_t',
                  which requires 4 byte alignment

Do not convert TMSI to number, use osmo_mi_name() from libosmocore.
Also use this function to print other MI types (IMSI or IMEISV).

Change-Id: Icf8836f216793e342b239c8e6645aac1e82bf324
2020-03-27 14:55:22 +00:00
Vadim Yanitskiy 0b25f693b3 BSSGP: fix: properly encode P-TMSI in RR Paging Request
The TMSI/P-TMSI IE in BSSGP PAGING-PS/CS comes without the MI type
header, that must be present in RR Paging Request. Prepend it.

TTCN-3 test case: I7fbec5b2c5c3943a7413417b623f55c135c152d7

Change-Id: I97fd5ffc15a4a58112d7c37c69b7ac42b0741a0e
2020-03-27 14:55:22 +00:00
Vadim Yanitskiy f497412f20 BSSGP: cosmetic use OSMO_IMSI_BUF_SIZE from libosmocore
Change-Id: I2079118100a3422e9c2ee63a5ac74e3ee81080b3
2020-03-27 14:55:22 +00:00
Keith Whyte 2b6acd8873 Don't check ul_control_block before decoding into it.
This patch corrects an error introduced in
6fd8ffb6fe
That commit allowed us to send the data over GSMTAP even
if the Uplink Control Block had invalid content,
that is to say, if decode_gsm_rlcmac_uplink() returned error.

However the check for ul_control_block->u.MESSAGE_TYPE
was place before decode_gsm_rlcmac_uplink()

Change-Id: Ic47602e5c6a13571b92c0a939fc3514110b82444
2020-03-26 23:32:49 +00:00
Pau Espin e5e2f747c3 csn1.h: Fix trailing whitespace
Change-Id: If17d36378fabeb7d22a513b93b0ecfde899df520
2020-03-26 16:03:56 +01:00
Pau Espin 24fa27453f gsm_rlcmac.cpp: Avoid declaring variable in for loop
That's only allowed under C++.

Change-Id: I0da8849a0fb7f9a7ee5e726edea87e91dc411ea8
2020-03-26 16:03:56 +01:00
Pau Espin 980ef1e38b cosmetic: Do not indent header includes inside extern C block
Change-Id: I3091d917a13e45b3aef8e52a53dcafa308581652
2020-03-26 16:03:56 +01:00
Pau Espin 007056e4ad gsm_rlcmac: Use 'struct bitvec' instead of 'bitvec'
The later is only accepted when compiling as c++.

Change-Id: Ib5004643d4eff3bc9d11b66ddaf262f1c0d2aef6
2020-03-26 16:03:27 +01:00
Pau Espin 754b093d16 pcu_l1_if.cpp: Add missing header ctype.h
The file uses the isdigit() function.

Change-Id: Id06ea25969ad9b964b3207479604132d25160f24
2020-03-26 14:49:04 +01:00
Pau Espin de63548f04 rlcmac: Rename field to MS RA Cap2 in Additional_MS_Rad_Access_Cap_t
This fix was spotted by wireshark.git developers while reviewing port of
osmo-pcu commit e50ce6e45c.

Related: https://code.wireshark.org/review/c/36574/
Fixes: e50ce6e45c

Change-Id: Ic5fc3252f61b6a042d9c3def7a6a32b311dd9d9e
2020-03-25 20:26:07 +01:00
Pau Espin 10ec506cc9 cosmetic: rlcmac: Fix comment typo and whitespace introduced recently
Change-Id: Ie56898e11e2c9426393af0f6558d340c454fe6c4
2020-03-25 14:32:30 +01:00
Pau Espin e50ce6e45c rlcmac: Introduce MS Radio Access Capabilities 2 to fix related spare bits
There's two variants for the Ms Radio Access Capabilities.
* The usual encoding with spare bits (usually to fill up to octet boundary)
as defined in TS 24.008 Table 10.5.146
And there's too:
* MS Radio Access Capabilities 2 IE from TS44.060 section 12.30, which is
the same but removing all spare bits, and which is used in messages like
Packet Resource Request and Additional MS RAC messages.

The later is used basically for messages having extra IEs after the MS
Radio Access capabilities IE, since they are encoded immediatelly
afterwards.

So this patch does:
* Adds the expected spare bits (M_PADDING) to MS_Radio_Access_capability_t
* Creates a new MS_Radio_Access_capability2_t without padding
* Updates code to use the new "2" version where needed.

Note RLCMACTest long de/encoding line logs change only because the name
of the struct changes (the "2" is added).

Change-Id: Ibd756f80a03452a651e2771dbc628d701e55ac4b
2020-03-23 19:02:01 +01:00
Pau Espin 20848c3ae5 rlcmac: Log names of de/encoded rlcmac packet types
Change-Id: I6a6e79d7e12cd5e8e969bf0eaa30ddac6b0aa7d3
2020-03-23 19:02:01 +01:00
Pau Espin 7faa5da209 rlcmac: Fix bug receiving RA cap
It seems the assumptions regarding maximum number of RA capabilitites
in one message were wrong. Doing some rough calculations, each RA
capabilitiy value (without extensions) can take around 20ish bits, which
means for a message containing up to 52 bytes that quite a lot of
different values could be theoretically fed in. Let's be safe and
increase the array size to be able to handle all different access
technologies listed in See TS 24.008 table 10.5.146 following
restrictions:
* "The MS Radio Access capability is a type 4 information element, with a maximum length of 52 octets."
* "Among the three Access Type Technologies GSM 900-P, GSM 900-E and GSM 900-R only one shall be present."
* "the mobile station should provide the relevant radio access
  capability for either GSM 1800 band OR GSM 1900 band, not both".

Wireshark requires similar fix (it's not important though because it
currently uses another ad-hoc decoder for RAcap).

Related: OS#4463
Change-Id: I5334eaacfbc238fae8bea50c9e9667c2117f81ff
2020-03-23 19:01:58 +01:00
Pau Espin efad80bfbf csn1: Validate recursive array max size during decoding
This way if CSN1 encoded bitstream contains more elements than what the
defintion expects it will fail instead of overflowing the decoded
buffer.

RA cap struct placed in unit test is taken from a real android phone
sending the value when attaching to the network. Then SGSN sends it back
and osmo-pcu would crash similar to unit test:
*** stack smashing detected ***: terminated
 Process terminating with default action of signal 6 (SIGABRT): dumping core
at 0x4C62CE5: raise (in /usr/lib/libc-2.31.so)
by 0x4C4C856: abort (in /usr/lib/libc-2.31.so)
by 0x4CA62AF: __libc_message (in /usr/lib/libc-2.31.so)
by 0x4D36069: __fortify_fail (in /usr/lib/libc-2.31.so)
by 0x4D36033: __stack_chk_fail (in /usr/lib/libc-2.31.so)
by 0x124706: testRAcap2(void*) (RLCMACTest.cpp:468)

Related: OS#4463
Change-Id: I9fe0e55e0a6a41ae2cc885fba490c1d4a186231e
2020-03-23 15:34:11 +01:00