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2016-09-26mscsplit: move subscriber conns list into struct gsm_networkNeels Hofmeyr3-8/+5
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 functionalityPhilipp6-18/+521
- 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 testPhilipp2-13/+17
- 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)Philipp1-0/+764
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 functionalityPhilipp7-31/+1300
- 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-testPhilipp3-88/+163
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 kernelPhilipp1-0/+744
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 testPhilipp2-0/+1805
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 Couzens4-6/+29
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
2016-09-18debug 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 Hofmeyr2-3/+2
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
2016-09-17Modify SI 13 field for control_ack_typeMax4-2/+45
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 Couzens1-4/+13
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 Huemer1-1/+3
Some fixes for build environments where dependencies are installed in distinct directories. Change-Id: I38808fd2911747b266ee6fde91187a88dd7ae355
2016-09-15Consistenly format variables in */Makefile.am filesAlexander Huemer15-228/+742
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 Willmann2-1/+31
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 Willmann2-0/+7
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 Willmann2-0/+33
Change-Id: Iad65ca9b77c3166d4df9a58af527e6aef7e589ee
2016-09-01IuPS: redirect Iu in various places, link Iu in sgsn-testDaniel Willmann1-6/+55
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 Willmann5-3/+234
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 Hofmeyr2-1/+51
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 Couzens10-62/+63
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
2016-08-27gprs_gmm: Fix bit mask when determining update/attach typeDaniel Willmann1-2/+6
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
2016-08-27cosmetic: gprs_sgsn.c: move pdp.h include to topNeels Hofmeyr1-1/+2
Change-Id: I9a9b34d714235462ba72cdb65b7c8c9824dfa9c6
2016-08-27add libiuNeels Hofmeyr3-2/+781
Co-Authored by dwillmann, laforge, nhofmeyr Change-Id: Iffc26f9c73cb15463948f7435b72ac1747aabdb3
2016-08-27Adding LLC-XID related modifications in LLCPhilipp1-57/+302
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
2016-08-27Moving grs_sndcp.h header file to includePhilipp4-59/+2
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
2016-08-27Adding LLC-XID encoder / decoder and unit testPhilipp2-1/+263
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
2016-08-27log: rsl notice: tiny tweak for readabilityNeels Hofmeyr1-1/+1
Change-Id: I57c3b7d27d857c96e3fa3dacf7b766bc43100fc3
2016-08-27log: improve for rsl_lchan_mark_broken()Neels Hofmeyr1-9/+3
In rsl_lchan_mark_broken(), call rsl_lchan_set_state() so the state transition gets logged in the debug log. Remove logging for the broken channel at the callers, instead log the error actually in rsl_lchan_mark_broken() itself, with the reason message passed by the caller anyway. (Removes code dup and ensures it's always logged.) Change-Id: I54ae9bbd3f193bae7b1bda1fef3e33e62b353bf5
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