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* Refactor COMP128v23 implementation and add test suitMax2013-12-078-42/+4216
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* gb: Remove comment about ABI changes from the MakefileHolger Hans Peter Freyther2013-11-221-3/+0
| | | | | | Okay. this comment thing has not worked (I totally forgot about it). I think either we try to find ABI breakages with tools or we use #error macros and check for a version...
* debian: Update the changelogJacob Erlbeck2013-11-111-1/+7
| | | | Sponsored-by: On-Waves ehf
* gprs: Fix VTY NSVC initialisation bug by changing gprs_nsvc_create()Jacob Erlbeck2013-11-111-3/+3
| | | | | | | | | | | | | | | | Currently the field nsvci_is_valid is set to 0 in the NSVC object returned by gprs_nsvc_create(). This was a semantic change probably introduced by commit 5e6d679d. As a result, NSVC created via the VTY have this flag set to 0 causing RESET_ACK messages to be rejected. This patch changes the default behaviour of gprs_nsvc_create() to always set this flag. So it must be set to 0 explicitely if needed which is more intuitive and thus less error prone. It fixes breaking connections from the Gbproxy to the SGSN. Ticket: OW#874 Sponsored-by: On-Waves ehf
* implement COMP128 version 2 and 3 A3/A8 algorithmKevin Redon2013-11-035-5/+264
| | | | simple copy into C from reversed code from www.hackingprojects.net
* gprs: Ignore NS RESET_ACK and ALIVE_ACK without RESETJacob Erlbeck2013-10-302-6/+17
| | | | | | | | | | | Currently those messages are answered by a NS_STATUS message when received on an uninitialised (no NS_RESET hat been seen yet) NS_VC which violates GPP TS 08.16 7.3.1 and 7.4.1. This patch adds checks to gprs_ns_vc_create() and eventually returns before the error NS_STATUS message is generated. Sponsored-by: On-Waves ehf
* grps: Add test for NS messages that shall be ignoredJacob Erlbeck2013-10-302-0/+55
| | | | | | | | | | Several messages shall not be answered when a RESET hasn't been received on a NS-VC: - NS_RESET_ACK (see 3GPP TS 08.16, 7.3.1) - NS_ALIVE_ACK (see 3GPP TS 08.16, 7.4.1) - NS_STATUS (see 3GPP TS 08.16, 7.5.1) Sponsored-by: On-Waves ehf
* lapd: Extend the test to check if lapdm_channel_exit is idempotentHolger Hans Peter Freyther2013-10-261-0/+10
| | | | | | | | | I have a crash with an older libosmocore and the sysmobts. I am not sure how we can have a release for a channel where the lapdm_channel has not gone through lapdm_channel_init. But to prevent the crash we can promise lapdm_channel_exit to be idempotent. It has been idempotent since f5a079f739c57d8be7c59149fd45475c402a45fc
* gprs: Address coverity warning for gprs_ns_tx_status resultHolger Hans Peter Freyther2013-10-251-8/+10
| | | | | | Add a #define for the check and use this in this path as well. Fixes: Coverity CID 1103092
* gprs: Address coverity warning on unchecked return of gprs_ns_tx_reset_ackHolger Hans Peter Freyther2013-10-251-1/+5
| | | | Fixes: Coverity CID 1111545
* gprs: Address coverity warning on unchecked return of gprs_ns_tx_statusHolger Hans Peter Freyther2013-10-251-1/+4
| | | | | | | We could consider creating a CHECK MACRO that will print a message in case of a tx failure. Fixes: Coverity CID 1111544
* gprs: Make sure that the buf is NULL terminated at the endHolger Hans Peter Freyther2013-10-251-0/+1
| | | | Fixes: Coverity CID 1107253
* debian: Update the changelogHolger Hans Peter Freyther2013-10-251-1/+2
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* gb: Create new NSVC object instead of patching the NSVCIJacob Erlbeck2013-10-243-16/+40
| | | | | | | | | When a RESET is received on the same link with a different NSVCI from a BSS on a dynamically created NS connection do not patch the nsvc object but create a new one instead. Thus the NSVCI is never modified at a nsvc object after the NS-VC has been established. Sponsored-by: On-Waves ehf
* gb: Fix RESET handling with changing NSEIJacob Erlbeck2013-10-242-50/+67
| | | | | | | | | This modifies the NS stack's behavior to accept RESET and RESET_ACK NSEI changes for NS-VC dynamically created by RESET messages from BSSes. This feature is not used for NS-VC configured via VTY or NS-VC to a SGSN. Sponsored-by: On-Waves ehf
* gb: Fix NS RESET/RESET_ACK abnormal casesJacob Erlbeck2013-10-244-157/+294
| | | | | | | | | | | | | | | | This changes the implementations for the reception of RESET and RESET_ACK to be compatible with 3GPP TS 08.16, 7.3.1: - Just send a RESET_ACK with correct values back to the SGSN when a RESET with an invalid NSVCI or NSEI has been received. - Check RESET_ACK for matching NSEI and NSVCI. - Ignore unexpected RESET_ACKs. In addition, use RESET_ACK from a BSS to update the BSS source address based on the NSVCI to be tolerant with changing UDP source addresses/ports. Sponsored-by: On-Waves ehf
* gb: Add test cases for NS RESET proceduresJacob Erlbeck2013-10-242-0/+703
| | | | | | | | | | | | Add a test handling proper and mismatching RESETs. The latter may occur, when ports change within a NS-VC without the SGSN getting notice. This tests for the behavior of the NS protocol stack for RESET and RESET_ACK messages which changing/invalid NSEI and NSVCI like it is being described in 3GPP TS 08.16, 7.3.1. Sponsored-by: On-Waves ehf
* gb: Fix gprs_nsvc_delete() to free ctr groupJacob Erlbeck2013-10-243-0/+128
| | | | | | | | | | | | | | | | | | | | This fixes a SEGV error that happens the next time the statistics are updated. Addresses: Program terminated with signal 11, Segmentation fault. #0 0xb7711fa5 in rate_ctr_group_intv (grp=<optimized out>) at rate_ctr.c:107 107 for (i = 0; i < grp->desc->num_ctr; i++) { #0 0xb7711fa5 in rate_ctr_group_intv (grp=<optimized out>) at rate_ctr.c:107 #1 rate_ctr_timer_cb (data=0x0) at rate_ctr.c:129 #2 0xb770ec59 in osmo_timers_update () at timer.c:243 #3 0xb770ef7a in osmo_select_main (polling=0) at select.c:133 #4 0x08049987 in main (argc=3, argv=0xbfba8084) at gb_proxy_main.c:306 Sponsored-by: On-Waves ehf
* gb/vty: Fix the VTY node string for L_NS_NODEJacob Erlbeck2013-10-241-1/+1
| | | | | | | Use 'config-ns' instead of plain 'ns' and append a blank after the '#' to make the vty python test script work. Sponsored-by: On-Waves ehf
* gb/vty: Perform NS-VC operations based on NS-VCIJacob Erlbeck2013-10-241-5/+15
| | | | | | | | | This adds a 'nsvc nsvci <0-65535> (block|unblock|reset)' vty command. It selects the NS-VC based on the nsvci instead of using the first with a matching NSEI, like it is done when the 'nsei' keyword is used instead. Sponsored-by: On-Waves ehf
* misc: Ignore generated filesHolger Hans Peter Freyther2013-10-171-0/+2
| | | | | * compile is generated by newer automake * ignore the test binary
* debian: Bump the changelog for some new packagesHolger Hans Peter Freyther2013-10-171-1/+2
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* gb: Fix gprs_active_nsvc_by_nsei()Jacob Erlbeck2013-10-172-12/+12
| | | | | | | The state matching condition is inverted. This is corrected by this fix. Sponsored-by: On-Waves ehf
* gb: Test sending messages to the SGSNJacob Erlbeck2013-10-172-53/+418
| | | | | | | This adds tests for the gprs_ns_sendmsg() function. For this it merges back functions from the gbproxy test. Sponsored-by: On-Waves ehf
* release: Prepare the 0.6.4 release of libosmocoreHolger Hans Peter Freyther2013-10-154-4/+10
| | | | New interfaces and ABI incompatible changes in the GB library
* ussd: Fix text of RELEASE COMPLETEAlexander Huemer2013-10-151-1/+1
| | | | | | Before the assigned value (0xFF) was truncated, reg->text[0] is of type char. A corresponding test for the same value in openbsc could only fail.
* gb: Fix gprs_ns_rx_reset to not create NS-VC duplicatesJacob Erlbeck2013-10-154-77/+187
| | | | | | | | | | | | | | | | | | | | | | | | | Under special circumstances (see below) receiving a NS-RESET leads to duplicated NS-VC entries. This happens when the source port of a NS-VC changes to a new one that has already been used by another NS-VC. This patch changes gprs_ns_rx_reset() to check for this case and to use the existing NS-VC object. The NS-VC object that was associated with the source address before is detached from this source but kept in the NS-VC list so that it can be reattached when a correspondent NS-RESET is received later on. Meanwhile it will have a cleared link layer address which will not match a real link info. A new counter NS_CTR_REPLACED is incremented each time when the NS-VC object is replacing another one. A new signal S_NS_REPLACED is added which gets dispatched in this case, too. Another new counter NS_CTR_NSEI_CHG is incremented each time when the NSEI of a NS-VC object (with fixed NSVCI) changes. Ticket: OW#874 Sponsored-by: On-Waves ehf
* gb: Add functions to access the LL part of the NS-VC objectsJacob Erlbeck2013-10-154-12/+52
| | | | | | | | Adds the functions gprs_ns_ll_copy() and gprs_ns_ll_clear(). Renames gprs_ns_format_peer() to gprs_ns_ll_str(). All of these functions uniformly access the link layer part within the NS-VC objects. Sponsored-by: On-Waves ehf
* gb: When sending on a NS-VC group use the first active NS-VCJacob Erlbeck2013-10-141-18/+29
| | | | | | | | | | | | Currently this first NS-VC with a matching NSEI is always used to send a UNITDATA message via gprs_ns_sendmsg(). If the NS-VC found is either dead or blocked, an error is returned. This patch changes to code to skip blocked or dead NS-VCs while searching and return the error if no usable NS-VC is found. This makes it possible to have several NS-VCs per connection group. Sponsored-by: On-Waves ehf
* tests/gb: Show invoked signals in test outputJacob Erlbeck2013-10-114-1/+57
| | | | | | | Register an osmo signal handler to print a short notice about every SS_L_NS signal that is generated while processing the tests. Sponsored-by: On-Waves ehf
* vty: Make vty_event dispatch signals and use it in the testcaseHolger Hans Peter Freyther2013-10-104-5/+45
| | | | | | | | | The testcase didn't work on Ubuntu 12.04 because vty_create will directly call vty_event (e.g. not through the plt). This means that the approach to override vty_event in the testcase failed. Use the signal interface of libosmocore and make the testcase use it. The signals can be generally useful as well.
* debian: Print test results in case of a failureHolger Hans Peter Freyther2013-10-101-0/+4
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* gb: Use the NS-VCI to find an existing NS-VCJacob Erlbeck2013-10-082-7/+8
| | | | | | | | | | | | | | | | Currently when a NS-RESET is recevied over a link that has not yet been associated with a NS-VC, the NSEI is used to find an existing NS-VC. If one is found, the reset procedure is initiated. This behaviour is not conformant with 3GPP TS 08.16 (see chapter 4.2.3) which allows to use several NS-VC between two endpoints in parallel. The patch changes the implementation to use the NSVCI instead of the NSEI to search for an existing NS-VC object. Ticket: OW#874 Sponsored-by: On-Waves ehf
* gb: Fix NS-RESET response message orderJacob Erlbeck2013-10-082-23/+25
| | | | | | | | | | | | | | According to 3GPP TS 08.16, 7.3 "Reset procedure" the entity receiving a NS-RESET PDU responds with a NS-RESET-ACK and 'then' starts the test procedure which essentially means, that a NS-ALIVE gets sent and a timer is started. Currently the NS-ALIVE is sent before the NS-RESET-ACK. This patch fixes the implementation by reversing the order in which these messages are sent. Sponsored-by: On-Waves ehf
* gb: Separate nsvc creation from NS message processingJacob Erlbeck2013-10-082-55/+153
| | | | | | | | | | | | This patch refactors gprs_ns_rcvmsg() by moving the parts relevant to the NS messages into the new functions gprs_ns_vc_create() (nsvc object creation) and gprs_ns_process_msg() (main NS automaton). These do not contain code that directly depends on the link layer (they call other functions that still do). This reduces the gprs_ns_rcvmsg() function to calling these two functions and optionally setting up the link layer specific fields of the nsvc. Sponsored-by: On-Waves ehf
* tests/gb: Add test for GPRS NS protocolJacob Erlbeck2013-10-084-1/+383
| | | | | | This tests the connection establishment by directly calling gprs_ns_rcvmsg() and printing the resulting messages and the NS-VC list.
* tests: Fix warningsJacob Erlbeck2013-10-085-5/+8
| | | | | | This fixes warnings that are raised by missing includes, missing casts, missing return statements, using printf %lu with uint64_t, and unused symbols.
* msgb: Add may_alias attribute to struct libgb_msgb_cbJacob Erlbeck2013-10-081-1/+1
| | | | | | | | | | This explicitely allows aliasing of this struct to avoid the warning shown below. Note, that this warning isn't show when '-fno-strict-aliasing' is used. Addresses: gb/gprs_ns_test.c:85:54: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
* tests: Fix the sms_test and use the right arrayHolger Hans Peter Freyther2013-10-081-1/+1
| | | | | | It started to behave weird on Debian Testing (GCC 4.8), I compiled it with address sanitizer support and set a breakpoint in __asan_report_error to get a backtrace.
* bssgp: Address various compiler warnings in the bssgp codeHolger Hans Peter Freyther2013-09-161-0/+3
| | | | | | | | | gb/bssgp_fc_test.c: In function ‘fc_out_cb’: gb/bssgp_fc_test.c:46:1: warning: no return statement in function returning non-void [-Wreturn-type] gb/bssgp_fc_test.c: In function ‘fc_in’: gb/bssgp_fc_test.c:56:1: warning: no return statement in function returning non-void [-Wreturn-type] gb/bssgp_fc_test.c: In function ‘test_fc’: gb/bssgp_fc_test.c:79:3: warning: implicit declaration of function ‘usleep’ [-Wimplicit-function-declaration]
* gsm48: Added 'Network Daylight Saving Time' info elementJacob Erlbeck2013-09-162-0/+2
| | | | | | | | This information element has been added to the MM Information message in GSM24.008. This patch adds it to the tlv_definition to keep the TLV parser from breaking. Ticket: OW#978
* vty: Allow vty_go_parent() in all nodes.Jacob Erlbeck2013-09-111-5/+25
| | | | | | | This patch removes an assertion of node > CONFIG_NODE and changes the function to handle all nodes properly. For the sake of completeness, the generic 'exit' command implementation is extended to work properly with all nodes, too.
* vty: Fix compiler warning in the testHolger Hans Peter Freyther2013-09-101-1/+2
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* vty: Replace 'enum node_type' by 'int' for last_nodeJacob Erlbeck2013-09-101-1/+1
| | | | | In this case the last_node variable may hold values that are not in enum node_type, so int is used instead.
* vty: Add vty_install_default() and use for the vty nodesJacob Erlbeck2013-09-086-7/+188
| | | | | | | | | | | This adds the vty_install_default() function that is basically the install_default() function plus the registration of the commands 'exit' and 'end'. The latter is only provided in subnodes of ENABLED_NODE and CONFIG_NONE. The VTY test program is extended to check these commands. Ticket: OW#952
* vty: Refactored vty_go_parent(), 'end' and 'exit'Jacob Erlbeck2013-09-081-22/+35
| | | | | | Put all 'exit' logic into vty_go_parent() and replace the implementations of 'exit' and 'end' by generic ones that use vty_go_parent().
* vty: Rename is_config() to is_config_child()Jacob Erlbeck2013-09-081-3/+3
| | | | | The function is_config() returns 0 for CONFIG_NODE. Since that node is a config node, the function is renamed to resolve this.
* misc: Include time.h for time_t on FreeBSDHolger Hans Peter Freyther2013-09-041-0/+2
| | | | | Fix the build after I changed the order of header files in the SMS test.
* Merge branch 'zecke/features/alpha-numeric'Holger Hans Peter Freyther2013-09-045-10/+103
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| * sms: Implement encoding the address as alphanumeric typeHolger Hans Peter Freyther2013-09-045-10/+103
|/ | | | | | The number of digits is the number of used octets times two (two digits per octet). The result has been successfully dissected by wireshark. It has not been tested with real phones.
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