osmocom
/
libosmocore
mirror of https://gerrit.osmocom.org/libosmocore
11
0
Fork 1
Code Issues Releases Wiki Activity
115 Commits 84 Branches 105 Tags 49 MiB
Commit Graph

115 Commits

Author SHA1 Message Date
Harald Welte b8a6a83be6 [gprs] Add new 'NS' and 'BSSGP' logging categories 2010-05-11 05:54:22 +02:00
Harald Welte d81856bc3d Merge commit '95df5c0179f6b24d31c6720a43434755ed58aa22' 2010-05-04 11:36:33 +02:00
Harald Welte 94633f3e2b [gprs] Move all GPRS related code to src/gprs subdirectory 2010-05-04 07:41:59 +02:00
Harald Welte 7fb7e6154c [gprs] NS: If we are the BSS side, UNBLOCK the connection after it is ALIVE 
After RESET / RESET-ACK and ALIVE / ALIVE-ACK, the connection needs to
be unblocked from the BSS side to the SGSN.
 2010-05-04 07:20:45 +02:00
Harald Welte 570fb83fd5 [gprs] NS: Start ALIVE Procedure after receiving RESET_ACK 2010-05-04 07:20:45 +02:00
Harald Welte 69a4cf2731 [gprs] NS: improved timer handling for RESET 2010-05-04 07:20:45 +02:00
Harald Welte 80405458a0 [gprs] NS: replace nsvc->timer_is_tns_alive with nsvc->timer_mode 
This will allow to use the timer in more than 2 modes
 2010-05-04 07:20:45 +02:00
Harald Welte bbc9fac7b7 [gprs] Unify log messages of the NS protocol implementation 2010-05-04 07:20:44 +02:00
Harald Welte f76aee438e [gprs] correctly calculate the length of the BSSGP PDUs 2010-05-04 07:20:44 +02:00
Harald Welte a2ca4ed960 [gprs] pass BSSGP UL-UNITDATA Cell ID up into GMM layer 
BSSGP stores a pointer to the Cell Identifier IE in msgb->cb, which
is later used by the GMM layer to identify the cell that has sent a
given message.

This now also means that the gsm_04_08_gprs.c code is free of any
legacy references to msg->trx or struct gsm_bts.
 2010-05-04 07:20:43 +02:00
Harald Welte 8f9a3ee67b [gprs] Use stdint.h types (uintXX_t instead of u_intXX_t) 
libosmocore already uses them, it's time (at least for new code)
in openbsc to do the same.
 2010-05-04 07:20:43 +02:00
Harald Welte 30bc19a5c6 [gprs] SGSN: Expect all Identifiers to be stored at highest level 
We now expect the highest level (actual SGSN GMM code) to know
all identifiers for every element in the protocol stack, i.e.
TLLI, SAPI, BVCI and NSEI.  The layer-inetrnal state is looked
up based on those identifiers.

The reason for this is to ensure only the highest level state
needs to be persistent, while everything else can be regenerated
dynamically (e.g. in a SGSN restart)
 2010-05-04 07:20:43 +02:00
Harald Welte ec19c10829 [gprs] Ensure msgb->l3h points to Layer3 (04.08) 
In the old code
	l3h = BSSGP, l4h = LLC, cb[gmmh] = 04.08
Now, this has been changed to
	cb[bssgph] = BSSGP, cb[llch] = LLC, l3h = 04.08

This way, GSM general 04.08 and GPRS 04.08 code can expect a
GSM 04.08 header at msgb->l3h
 2010-05-04 07:20:43 +02:00
Harald Welte 2577d41526 [gprs] convert ns_cause_str to value_string 2010-05-04 07:20:43 +02:00
Harald Welte 290671d683 [gprs] BSSGP: convert cause strings to value_string 2010-05-04 07:20:43 +02:00
Harald Welte 6752fa43b6 [gprs] introduce BSSGP concept of BTS contextx 
A BTS context represents the mapping betewen (RA-ID, Cell-ID) and
(BVCI, NSEI) as well as the per-BVC local state.
 2010-05-04 07:20:43 +02:00
Harald Welte 3fddf3c4ef [gprs] Build the SGSN stand-alone and not as part of bsc_hack 
Instead of continuing to add more and more functionality to the
bsc_hack binary, we should have the new SGSN code run as a separate
executable.

After this commit we now build a 'osmo_sgsn' executable, using its
own osmo_sgsn.cfg config file.

However, the SGSN is not yet functional, mainly due to the fact that
the BSSGP and GMM code are written with the assumption that there
is a msgb->trx->bts and the according 'sturct gsm_bts' data model
around - which clearly is no longer the case outside of bsc_hack.
 2010-05-04 07:20:43 +02:00
Harald Welte 1203de3993 [gprs] fully integrate VTY configuration into Gb proxy 
The Gb-proxy is now fully configured by config file / VTY
 2010-05-04 07:20:42 +02:00
Harald Welte 3771d09ec0 GPRS: Introduce a GPRS Gb Proxy 
The ida of the Gb proxy is to aggregate Gb links with a number of BSS
and then present all the BSSGP-VC's together inside one NS-VC to the
actual SGSN.

The code is not yet expected to be complete.
 2010-05-04 07:20:42 +02:00
Harald Welte 24a655f140 gprs: remove msgb->nsvc pointer and replace it with NSEI and BVCI 
According to TS 08.16, the BSSGP layer needs to specify NSEI and BVCI when
executing the NS UNITDATA REQUEST primitive of the underlying NS layer.

Rather than passing around a pointer to the 'struct gprs_nsvc', we now
have NSEI and BVCI as members of 'struct obsc_msgb_cb' and set them
when BSSGP hands a message down to NS.

NS then does a lookup of the 'gprs_nsvc' based on the NSEI parameter.
 2010-05-04 07:20:42 +02:00
Harald Welte 645609ddc8 gprs: Use new msgb->cb[] for storing a pointer to the NS-VC through which it was received 2010-05-04 07:20:42 +02:00
Harald Welte f030b210e8 GPRS: Modularize the NS implementation 
* move UDP listener code for NSIP from input/ipaccess.c and into gprs_ns.c
* add PDU type, IE and CAUSE values for later IP based 3GPP TS 48.016
* support multiple NS-VCs and their lookup based on NSVC and sockaddr_in
* maintain the remote_state (blocked/alive) for each NSVC
* introduce the concept of GPRS_NS instances, move all global vars to instance
* remove hardcoded calls to gprs_bssgp_rcvmsg() and replace it by callback

WARNING: This is not finished code.  While it will compile, it will not work
yet, as BSSGP needs to be converted to properly indicate the NSVC to which it
needs to send data.
 2010-05-04 07:20:42 +02:00
Harald Welte 510c3920c8 gprs: Update gprs-sgsn branch to use new msgb->cb layout 
The explicit 'tlli, gmmh' members of struct msgb are gone from
current libosmocore and have been replaced by the more generic
'control buffer' mechanism.
 2010-05-04 07:20:41 +02:00
Harald Welte c547848ead GPRS: remove hard-coded IP address for NSIP responses from SGSN->BTS 2010-05-04 07:20:41 +02:00
Harald Welte 9ba500559a Create new 'gprs-sgsn' branch on top of 'gprs-conf' 
This branch contains the partial SGSN/GGSN implementation that
was originally developed as part of the gprs branch.
 2010-05-04 07:20:41 +02:00
Harald Welte 20488d4881 Merge commit '35a939463eee58492c88cbe7531288237cdcf454' 2010-05-01 14:27:23 +02:00
Harald Welte 3c73dda6ca Merge commit 'debf95507461965aa82be2fa2bf34119343cfb0e' 2010-05-01 12:07:56 +02:00
Harald Welte 871774ee89 Merge commit '074c9f904cb5e4f6ab014d76e4abc079c16fc5d7' 2010-04-30 14:29:56 +02:00
Holger Hans Peter Freyther c646345647 Merge branch 'on-waves/sccp' 2010-04-25 23:07:24 +08:00
Holger Hans Peter Freyther f3e25ed7ae Merge branch 'on-waves/mgcp' 2010-04-25 23:03:30 +08:00
Holger Hans Peter Freyther 17c3712dae Merge branch 'on-waves/mgcp' 2010-04-17 06:46:06 +02:00
Holger Hans Peter Freyther 428f2301eb Merge branch 'master' into on-waves/mgcp 2010-04-07 23:03:27 +02:00
Holger Hans Peter Freyther e1d67ecc43 Merge branch 'on-waves/sccp' 2010-04-07 22:54:12 +02:00
Holger Hans Peter Freyther 8975522b84 Merge branch 'on-waves/mgcp' 2010-04-07 22:54:07 +02:00
Holger Hans Peter Freyther ca2c31c765 Merge remote branch 'origin/master' into on-waves/mgcp 2010-03-30 15:35:26 +02:00
Harald Welte 9a3b6b8a2f Merge commit '3ae2758fba1dc9b364238c6e1e7d591b12c3d878' 2010-03-26 21:35:28 +08:00
Harald Welte 21d3e7aaa2 Merge commit '52b4abdcb351830f5493a50c4181ef3947f3feab' 2010-03-26 05:15:27 +01:00
Holger Hans Peter Freyther a985bdbc2e Merge branch 'holger/bsc-msc-separation' 2010-03-25 09:08:53 +01:00
Harald Welte c578069493 Merge commit '52b4abdcb351830f5493a50c4181ef3947f3feab' 2010-03-25 12:15:24 +08:00
Harald Welte fdcf65b91c Merge commit '4cd3d8a2c7982ba11d05d2500b1bfca44f440d1e' 2010-03-23 00:37:52 +08:00
Harald Welte e69210857f Add 'libosmocore/' from commit '045cc22baeb7f12dcb0022b79a1984d86e922870' 
git-subtree-dir: libosmocore
git-subtree-mainline: e164d29e7f6c86d1f6f047bbf58159e46a11425f
git-subtree-split: 045cc22bae
 2010-03-22 22:25:13 +08:00
Holger Hans Peter Freyther edc37630da Merge remote branch 'origin/on-waves/sccp' 2010-02-26 20:21:21 +01:00
Holger Hans Peter Freyther a358b48311 Merge remote branch 'origin/on-waves/mgcp' 2010-02-26 20:20:17 +01:00
Holger Hans Peter Freyther 8716bb6ebd Merge remote branch 'origin/master' into on-waves/sccp 2010-02-26 20:18:24 +01:00
Holger Hans Peter Freyther 3af86269a9 Merge remote branch 'origin/master' into on-waves/mgcp 
Conflicts:
	openbsc/include/openbsc/Makefile.am
	openbsc/src/Makefile.am
 2010-02-26 20:16:45 +01:00
Harald Welte 2b6322cde1 Merge remote branch 'origin/master' 2010-02-24 22:52:58 +01:00
Harald Welte f704c3e633 intial checkin of the libosmocore project 2010-02-20 20:34:29 +01:00
Holger Hans Peter Freyther ffecf66fc1 Merge branch 'on-waves/sccp' 2010-02-20 00:38:20 +01:00
Holger Hans Peter Freyther 771d47f8ad Merge branch 'on-waves/sccp' 2010-02-14 19:27:52 +01:00
Holger Hans Peter Freyther 5a678ed5b5 Merge branch 'on-waves/sccp' 2010-02-12 22:52:12 +01:00