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2016-09-26mscsplit: directly access gsm_network backpointer from gsm_subscriber_connectionNeels Hofmeyr5-60/+53
The previous commit added a network backpointer to gsm_subscriber_connection. Use it wherever it makes sense, to skip the step through the bts structure. In some places, remove local variables that become unused. Change-Id: I34537025986713291e14c8212a81539b497befd4
2016-09-26mscsplit: add gsm_network backpointer to gsm_subscriber_connectionNeels Hofmeyr2-0/+3
We want to be able to use a network backpointer without having to go through a gsm_bts struct. This commit adds the network pointer, the subsequent commit applies direct access to the network structure from gsm_subscriber_connection. Change-Id: If8870972f1b3e333c2a4cce97cdc95bdee0382a1
2016-09-26mscsplit: abis vty: decouple from global bsc_gsmnet variableNeels Hofmeyr3-4/+6
Publish gsmnet_from_vty() in openbsc/vty.h and use in the abis VTY functions. Change-Id: Ib65a18db06b8bc4fc7d56bf56dd64a52cc1cd253
2016-09-26mscsplit: bsc_vty_init(): decouple from global bsc_gsmnetNeels Hofmeyr5-5/+5
Add an explicit gsm_network pointer instead of using the bsc_gsmnet global. This allows passing a gsm_network struct from the main() scope, which helps to decouple libmsc from libbsc. Change-Id: I9e2c0d9c18d4cebb5efb71565ad84df2bc2e0251
2016-09-26mscsplit: talloc_ctx_init(): decouple from global tall_bsc_ctxNeels Hofmeyr3-20/+19
Decouple the talloc context allocations from global tall_bsc_ctx pointer. It appears that talloc_ctx_init() was intended for general use, since it is located in libcommon. It is currently used only by osmo-nitb; but the upcoming osmo-cscn will use it as well. Instead of defining in osmo-nitb main file, add definition in gsm_data.h. Change-Id: I168106599b788f586be0ff0af4699b9746c1b103
2016-09-26mscsplit: gsm_network_init(): add explicit root talloc ctxNeels Hofmeyr7-9/+14
Decouple the root talloc context from libbsc's global talloc_bsc_ctx. This allows to define the root talloc ctx from a main() scope, which in turn helps decouple libmsc from libbsc. Change-Id: I92f6b47b1eeea2e8f3fba66f25d7e708e5659f8a
2016-09-26mscsplit: move subscriber conns list into struct gsm_networkNeels Hofmeyr5-10/+8
Replace the global sub_connections llist with gsm_network.subscr_conns. Initialize and apply where applicable. Remove bsc_api_sub_connections(), callers now access gsm_network->subscr_conns directly. This allows using the subscr_conns from libmsc without having to link libbsc. Change-Id: Ice2a7ca04910bcfaaff22539abe68a6349e8631c
2016-09-26mscsplit: bsc_init: don't pass telnet dummy connNeels Hofmeyr1-4/+1
We want to create the telnet for VTY only after reading the config file, and the dummy_conn was a workaround to be able to do so, but is not needed: gsmnet_from_vty() used to expect vty->priv to point to a gsm_network struct, but that is not actually the case anymore. It is using a static pointer to store the gsm_network struct instead. Change-Id: I51e7224c5a4cd5baf564bee871cf2fa6e885cda7
2016-09-24SNDCP: add V.42bis data compression functionalityPhilipp10-18/+585
- Add compression control for V.42bis Add code to handle compression (gprs_sndcp_dcomp.c/h) - Add Adjustments in SNDCP - Add VTY commands Change-Id: I6d36cbdf2f5c5f83ca9ba57c70452f02b8582e7e
2016-09-24V.42bis: integration and unit testPhilipp14-15/+1135
- Edit previously committed V.42bis implementation to function outside IAXmodem. - Add unit test to verify the correct function of V.42bis Change-Id: I689413f2541b6def0625ce6bd96f1f488f05f99d
2016-09-24V.42bis: add sourcecode from IAXmodem (SPANDSP)Philipp3-0/+1031
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
2016-09-24SNDCP: add RFC1144 header compression functionalityPhilipp14-31/+1474
- 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
2016-09-24RFC1144: integration and unit-testPhilipp14-89/+544
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
2016-09-24RFC1144: add slhc code from linux kernelPhilipp2-0/+927
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
2016-09-24SNDCP: add SNDCP-XID encoder/decoder and unit testPhilipp12-1/+2350
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
2016-09-23bts: extend bts_chan_load to allow counting tch onlyAlexander Couzens5-7/+30
Change-Id: I86f1d502649747b6b9aefcb39081b14110e8f494
2016-09-22cosmetic fixes in libcommon/talloc_ctx.cNeels Hofmeyr1-1/+20
Add copyright notice, remove obsolete include, remove unneeded line break. Change-Id: I4d06a0323aee5a003b06edd179fc61e1936acae5
2016-09-19cosmetic: transaction.h: 1 comment typo, 1 whitespaceNeels Hofmeyr1-2/+2
Change-Id: Ia2629f9d9887b50b25c6996531b7ef518fb33335
2016-09-18debug log for sms: fix/addNeels Hofmeyr3-2/+14
One logged the wrong function name. Add others. Change-Id: Ied5d8e84d5d192c826bc131be8907eaa55190479
2016-09-18Sanity fixes for gsm0408_dispatch(): rc, assertionsNeels Hofmeyr1-0/+5
gsm0408_dispatch() is the main entry point for receiving data from the BSC/RNC level, so make sure callers pass valid pointers before using them all the way down the code path (related to CID#93769, a fix before this was refactored). For unknown/unimplemented packet discriminators, make sure to return error codes. Change-Id: Ieec39c74a53ef4dfa971dd935c8c9aa60fef58c1
2016-09-18cosmetic: various comment, whitespace tweaksNeels Hofmeyr4-5/+4
Change-Id: I131939cfba4d67d7e2c935341deeb14d09523fee
2016-09-18utils/Makefile.am: remove unused LIBOSMOVTY_CFLAGSNeels Hofmeyr1-1/+0
Change-Id: Id1152b105bb7364a06d9720829d39f587242b707
2016-09-18vty l3 help: fix typo 'comamnds'; fix english s/his//Neels Hofmeyr1-5/+5
Change-Id: I6be52bbb69de8aa0a6d57a3a320661ad85fc2cc4
2016-09-18remove unused bsc_copyright from bsc_vty.cNeels Hofmeyr1-1/+0
Change-Id: I281791c0f57ca75ffe14431a3030811b2d224f0b
2016-09-18properly #include <openbsc/gsm_data.h> from gsm_subscriber.hNeels Hofmeyr1-2/+3
Don't use quoted, local include, use <> style include. Cosmetic: also move stdbool.h include to the top to keep osmocom and openbsc includes grouped. Change-Id: Iaa3dc36768f96f6b8c91010a2ba389fdc37f1503
2016-09-17Modify SI 13 field for control_ack_typeMax6-2/+47
Add vty function to explicitly set use of 4xRACH type of ack message for PACKET CONTROL ACKNOWLEDGMENT. Previous hardcoded value (use RLC/MAC control block) is used as a default. This is handy for debugging issues related to Timing Advance in context of GPRS. Change-Id: Ie869ac0a82055110f1e3b875e246750c4e113336 Related: OS#1526
2016-09-17log causing rx event for lchan_lookup errorsNeels Hofmeyr1-8/+14
Add log_name to lchan_lookup() and pass such from the various RSL rx events that call it to validate the RSL chan_nr. Change-Id: Id81e7b8b9c27831923f050a78dfc7d650e687033
2016-09-17log: abis_rsl: don't log 'error' when there is no errorNeels Hofmeyr1-1/+5
The message 'RF Channel Release due error 0' keeps catching my eye because it says 'error' even though the error code is zero, i.e. no error. This shall end now. Change-Id: Ie0b9d62e8ce85a096c963931e0ae5527b8dc490a
2016-09-17sms: change rp err cause of smpp_try_deliver errorsAlexander Couzens2-4/+15
smpp_try_deliver could fail with rc < 0. In such cases don't send the MS the rp error sms rejected (cause 21). A rejected message should not be sent again. The spec 04 11 recommends sending cause 41 Temporary failure in unknown cases. Add also a log message and rate counter for such cases. Tweaked-By: Neels Hofmeyr <nhofmeyr@sysmocom.de> Change-Id: Ia03e50ce2bd9a7d1054cc5a6000fd73bd3497c03
2016-09-15Build fixesAlexander Huemer5-4/+10
Some fixes for build environments where dependencies are installed in distinct directories. Change-Id: I38808fd2911747b266ee6fde91187a88dd7ae355
2016-09-15Consistenly format variables in */Makefile.am filesAlexander Huemer37-472/+1482
Change-Id: Ifa21513c007072314097b7bec188579972dc1694
2016-09-05gprs/gprs_llc: fix null pointer deref in gprs_llc_rcvmsgAlexander Couzens1-2/+1
Change-Id: I1f7e1d524042134c93a4f3de599c54d442447512
2016-09-05gprs/gsm0408_gprs_force_reattach_oldmsg: check llme before useAlexander Couzens1-1/+2
Change-Id: I9385655872c4dcf46aa1d18bcc47b84aba2f34f7
2016-09-02IuPS: Change GTP-U endpoint to SGSN in PMM_IDLE and page UE when data arrivesDaniel Willmann3-1/+32
Change-Id: I47b73a40cbdda6b7c31fb2767f74f9f93d84056b
2016-09-02IuPS: Introduce function to change PMM stateDaniel Willmann1-6/+29
This is where IuPS will redirect GTP-U endpoints in a subsequent commit. Also add comprehensive logging of pmm_state transitions. Change-Id: I7c2cd1abc1805659b01dffffff31c49fe5161086
2016-09-02IuPS: GMM Attach: reset MM ctx pending_reqDaniel Willmann1-0/+1
Change-Id: I0df0f3d88085939eb617405e2013ad164eed477b
2016-09-02IuPS: sgsn_mm_ctx: add enum gprs_pmm_state field, track PMM stateDaniel Willmann3-0/+18
Iu needs to page to transfer data in PMM-IDLE state. Change-Id: Id37778cb9a0328a21c8e8246998ecdb43dd687d8
2016-09-02IuPS: RA UPD: make sure to authorize, for Iu Integrity ProtectionDaniel Willmann1-4/+7
Change-Id: I2ea2089895f8a8e125ef39d9bef70dafb2b1ce69
2016-09-02IuPS: add GMM Service Request rx and txDaniel Willmann1-0/+199
Change-Id: Ib935de22d23a15f449927840d4d59497ce22abbd
2016-09-02IuPS: send Security Mode Command, track the new_key flag.Daniel Willmann2-0/+14
Change-Id: I0b2593c2df13b79eb36975b0d302e31cfdf8bb09
2016-09-02IuPS: dev hack: init hardcoded Ki on ATT REQDaniel Willmann1-0/+29
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
2016-09-01IuPS: add Iu response to delete_pdp_conf()Daniel Willmann1-0/+7
Change-Id: I6d601586101c0a004b2243633fab48db82b44b7c
2016-09-01IuPS: add Iu response to create_pdp_conf()Daniel Willmann3-0/+35
Change-Id: Iad65ca9b77c3166d4df9a58af527e6aef7e589ee
2016-09-01IuPS: redirect Iu in various places, link Iu in sgsn-testDaniel Willmann2-6/+65
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
2016-09-01IuPS: osmo-sgsn: add core IuPS impl, call iu_init()Daniel Willmann7-3/+239
Add main Iu entry points for IuPS: * gsm0408_gprs_rcvmsg_iu() * sgsn_ranap_iu_event() * sgsn_ranap_rab_ass_resp() Add main MM context management for IuPS: * sgsn_mm_ctx_by_ue_ctx() * sgsn_mm_ctx_alloc_iu() Call iu_init() from sgsn_main.c. Add asn_debug impl ("extern" from libasn1c). Initialize asn_debug VTY command (iu_vty_init()). osmo-sgsn build: add libiu and libasn1c, libosmo-sigtran, libosmo-ranap Change-Id: I469ae6ca9ef254d04ee0d2d79bdd65aebcd027b5
2016-08-31IuPS: add VTY config for asn_debugNeels Hofmeyr3-1/+53
Add file iu_vty.c in libiu, and iu_vty_init() to initialize the new VTY command: log logging asn1-debug (1|0) Change-Id: If4e7d0ab3fc2ed0cdf4fb0a3fa077a9e34890918
2016-08-31osmo-nitb: generate backtrace on SIGABRTHarald Welte1-0/+1
As the NITB has an internal SIGABRT handler that prints a talloc report, let's also print a stack backtrace at the same point. Change-Id: Ia63aa5c39b26e27c3ee220d755c17d2c1ef636c5
2016-08-30bsc/netinit: correct mistyped rate counterAlexander Couzens1-1/+1
Introduced by b847a21fa48158b17c4f84c1ceeb3d143cffed8c Change-Id: I57c41f98e3826951a5071b005cb640c23d466477
2016-08-29libmsc/bsc: split rate counters into bsc and msc groupAlexander Couzens11-94/+110
Tweaked-By: Neels Hofmeyr <nhofmeyr@sysmocom.de> Change-Id: I7361033cd1eb919ec3c2ea2652f40ab8c75b2f99
2016-08-27IuPS: track msg->dst aka ue_conn_ctx, commentDaniel Willmann1-0/+4
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
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