Timer T3395 starts at the transmission of Deactivate PDP request using
pdpctx_timer_start but there was no corresponding stop function.
The timer is stopped when Deactivate PDP Context Accept is received.
This according to 3gpp spec reference 24.008 section 6.1.3.4.2.
Change-Id: I825c0a47d39e784dd1b8251f564609262530a5c6
In case the link_info is deleted we have to stop handling the stored messages
inside link_info. Not doing so can lead to invalid memory being accessed.
Change-Id: Ieb8503e9e94e7a5ac450ad8aa1713ec4f21cdea5
Ticket: OW#3049
Sponsored-by: On-Waves ehf
The GTP protocol specification requires us to include the MSISDN IE in
all non-secondary PDP context activations. However, when no real HLR is
used (e.g. via GSUP), we do not have the MSISDN information available
and so far simply sent a zero-length MSISDN IE in GTP. The latter is a
violation of the spec.
So to resolve this, we now send a 15-digit all-zero dummy MSISDN IE, as
described in TS 23.003.
Change-Id: I8d0a5d52d6cd2a00b5dda060bd41d45056dfa84d
- missing break in gprs_sndcp_pcomp.c, line 143
- string overflow in slhc_test.c, line 211
- sizeof mismatch in gprs_sndcp_xid.c, line 1369 and 1378
- mismatching signedness in gprs_sndcp_xid.c, line 1377
- needless < 0 comparison in gprs_sndcp_xid.c, line 477
- needless < 0 comparison in gprs_sndcp_xid.c, line 209
- missing returncode check in v42bis_test.c, line 320
- wrong pointer dereferentialization in gprs_sndcp_comp.c, line 73
Change-Id: I4f9adf251f5119e67ffe76baad6f1f996ac8dbad
Drop extern definitions of talloc_msgb_ctx and use msgb_talloc_ctx_init()
instead.
In sgsn_test.c, use a local variable msgb_ctx to do the talloc report
from the return value of msgb_talloc_ctx_init().
Change-Id: I2f9ace855f0ecbdc9adf5d75bcb1a3d666570de4
After libosmocore 38d232ee5d2ceb045d9ad6d3a23afcb4972523f7 which outputs
'CTRL at <ip> <port>' from ctrl_interface_setup_dynip(), there's no need to log
the CTRL bind here anymore.
Change-Id: I1a874efe365a1ecf8ec37b058215b95b9a635ec2
Add a condition for GERAN Gb.
SNDCP and IuPS were developed on separate branches, and the merge results in
code trying to use an llme on a UTRAN Iu context where the llme is NULL,
leading to stack corruption upon PDP ctx act.
Change-Id: Ibb20d738c1b64d36630ce8eceb54c33ba4f1b003
After libosmocore 55dc2edc89c1a85187ef8aafc09f7d922383231f which outputs
'telnet at <ip> <port>' from telnet_init_dynif(), there's no need to log the
telnet VTY bind here anymore.
Change-Id: I97a730b28759df1d549a5049f47a3da1c16a3447
- Edit previously committed V.42bis implementation to function
outside IAXmodem.
- Add unit test to verify the correct function of V.42bis
Change-Id: I689413f2541b6def0625ce6bd96f1f488f05f99d
V.42bis is a data compression method found in modems. It has also
been specified for GPRS as data compression algorithm.
The implementation has been taken from IAXmodem:
https://sourceforge.net/p/iaxmodem/code/HEAD/tree/
svn checkout svn://svn.code.sf.net/p/iaxmodem/code/ iaxmodem-code
Revision: r36
Change-Id: Iabedece9f97ca944a1e3f747bb073e532c4e9dca
- Add module to handle compression entities
- Add module to control header compression
- Introduce VTY commands for heade compression configuration
- Add changes in sndcp and llc to integrate header compression
Change-Id: Ia00260dc09978844c2865957b4d43000b78b5e43
The previously pushed slhc implementation has been modified to compile
and function outside of the kernel. Also debug log messages were added
and datatypes ware matched. The implementation is now ready to be used
Change-Id: I7a638e88a43b3eb9d006751a03ef2570e36613f0
SLHC is an Implementation of RFC1144 TCP/IP header compression. We will need
RFC1144 compression to compress GPRS TCP/IP traffic. The implementation pushed
with this commit was taken from:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
commit 29b4817d4018df78086157ea3a55c1d9424a7cfc
Change-Id: Ied69c143678dc4a64cecc671f5c4dfebe19d8519
The SNDCP-XID (or layer-3 xid) is used to exchange layer-3 parameters
such as compression. The encoder encodes a bytestream that is then
sent as regular XID field from LLC.
We will need the SNDCP-XID to negotiate the parameters for our
upcomming GPRS data and header compression features
Change-Id: If2d63fe2550864cafef3156b1dc0629037c49c1e
This is where IuPS will redirect GTP-U endpoints in a subsequent commit.
Also add comprehensive logging of pmm_state transitions.
Change-Id: I7c2cd1abc1805659b01dffffff31c49fe5161086
DEVELOPMENT HACK: Our current HLR does not support 3G authentication tokens. A
new HLR/VLR implementation is being developed. Until it is ready and actual
milenage authentication is properly supported, we are hardcoding a fixed Ki and
use 2G auth.
Change-Id: Ieca45960fa941a3a706c6e479b04b9f2ef89d860
In gsm48_gmm_sendmsg(), redirect to iu_tx() for both cases of MM context
present or not.
In gsm48_rx_gmm_att_req(), compose an MM context marked as Iu for messages
coming in from a ue_conn_ctx (passed in msg->dst). Also make sure cid is
initialized to avoid introducing a compiler warning.
In gsm48_rx_gmm_ra_upd_req(), look up an Iu MM context based on the presence of
the ue_conn_ctx in msg->dst.
In sgsn-test, add libiu and libasn1c, libosmo-sigtran, libosmo-ranap, which are
now needed for an --enable-iu build.
Change-Id: Ia47ffbfa6fa0f5a0cd76a379c57ef42faa0d80e3
For Iu connections, msg->dst will point to the ue_conn_ctx, and we need to make
sure to keep msg->dst intact when copying from/to msgb and from/to MM context.
Change-Id: I90c7ca6c3655d447aaca958e0086ae6ce6f6045a
Bit 4 is reserved in 3GPP TS 04.08 so exclude it from the type.
In 3GPP TS 24.008 it indicates if a follow-on request is pending by the
MS, but only in Iu mode. According to the spec it is not required to
react to that request with a follow-on proceed so this field can be
ignored for now.
See 3GPP TS 24.008 Ch. 4.4:
"Unless it has specific permission from the network (follow-on proceed)
the mobile station side should await the release of the RR connection
used for a MM specific procedure before a new MM specific procedure or
MM connection establishment is started."
as well as Ch. 4.4.4.6:
"If the network wishes to prolong the RR connection to allow the mobile
station to initiate MM connection establishment (for example if the
mobile station has indicated in the LOCATION UPDATING REQUEST that it
has a follow-on request pending) the network shall send "follow on
proceed" in the LOCATION UPDATING ACCEPT and start timer T3255."
Change-Id: If1dff960c406060e257dafc54132687ffc42ad8f
With this commit the already existing XID mechanism has been
modified to suit the needs for the upcomming SNDCP-XID patches.
This commit should not break anything since it does not alter
the current behaviour (incoming XID is still just echoed, on
GMM-Reset a basic XID message is still echoed)
Change-Id: I65b9d625e72d3d61c99abdc7041773701d694d52
For some reason gprs_sndcp.h is located in src/gprs. This commit moves
gprs_sndcp.h to include/openbsc and fixes the include path in
gprs_sndcp.c and gprs_sndcp_vty.c
Change-Id: If4e4f1252c81d7907c1b4d738c982bb172b128c9
The lle-xid encoder/decoder is needed to encode and decode llc
xid parameter messages. We need this to exchange sndcp-parameters
(SNDCP-XID) and also simple parameters such as encryption IOVs
Change-Id: Ia06e4cb08bf9b48c2a4682606d1b1a91d19a9d37
new counters are:
llc.dl_bytes
llc.ul_bytes
llc.dl_packets
llc.ul_packets
The ip payload bytes are waiting for payload compression
because those data are known then.
Change-Id: I068376d35e84283cb98523cd3097a12c55cdb709
f9f4387686 introduced a check for ran_type,
which potentially leaves reject_cause unset. Fix that.
Change-Id: I0220841ff796f949d00a1415d46b54a3eacc9493
Split out generation and application of GEA gamma into separate function
which can be used for both encryption and decryption.
Change-Id: I442f2ead57e40d9bcd24e7f1b261041371595360
Related: OS#1582
According to 3GPP TS 24.008 § 4.7.1.2 some GMM frames are not supposed
to be ciphered. Propagate information about the necessity for
encryption between MM <-> LLC to ensure only proper frames are
encrypted/decrypted/dropped.
Change-Id: I0358905e60d1b182f75caec81bfcc72bbbbb2aa1
Related: OS#1582
Pravin Kumarvel
Philipp Maier
Daniel Willmann
Harald Welte
Neels Hofmeyr
Alexander Huemer
Dieter Spaar