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srsLTE
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256 Commits

Author SHA1 Message Date
Andre Puschmann 64dd4c1fc4 fix issue when packing service reject fails and NAS uses initialized logger 2019-04-30 13:59:06 +02:00
Andre Puschmann 4b01a2e4a0 update copyright notice 2019-04-29 09:20:02 +02:00
Andre Puschmann 205db6f229 add missing license headers 2019-04-26 21:20:12 +02:00
Ismael Gomez 7780b1aba5 add tdd/ca support 2019-04-25 20:57:58 +02:00
Pedro Alvarez 1bac758a85 EPC now sends service reject to a UE that sends service request with bad integrity. 2019-04-12 16:24:57 +02:00
Joseph Giovatto fa99aa590e added support for optional ue static ip address (rebase #225) 2019-04-11 15:55:46 +02:00
Pedro Alvarez 3ad19f21b6 Adding per UE authentication algorithm choice to the HSS and users_db.csv. 2019-04-09 17:17:02 +02:00
Pedro Alvarez ca603810ce Adding Downlink data notification and paging functionality to the EPC. 
This entails:

  * Adding S1AP paging messaging to the MME.
  * Adding the Downlink Data Notification, Donlink Data Notification Acknoledgment, and Downlink Data Notification Failure Messages.
  * Adding the logic at the GTP-U to detect that Downlink Data notification needs to be sent.
  * Proper handling of the new GTP-C messages at the MME GTPC and SPGW GTPC classes
  * Add queuing mechanisms at the GTP-U while waiting for paging response. Queue is flushed when paging fails (timeout or other).
  * Make sure eNB's SCTP information is properly stored.
  * Make sure UE's GUTI information is properly stored.
 2019-04-09 16:59:44 +02:00
Pedro Alvarez 1db959c661 Added NAS timer functionality to the EPC. This entails: 
* Adding timer creation at NAS using timerfd_create
  * Adding the ability to add and remove the timer file descriptor to the MME main select loop
  * Adding the ability to the MME for the NAS to check if a timer is running
  * Adding the timer expiry handling functionality at the MME
 2019-04-08 13:05:54 +02:00
Pedro Alvarez 9463b95dc1 Remove unused mutex in the SPGW. 2019-04-03 09:52:18 +02:00
Pedro Alvarez 3933b269d7 Added GTP-C message passing between MME and SPGW using UNIX sockets. 
* Added S11 sockets to SPGW select and MME select
  * Added send_s11_pdu message to SPGW and MME
  * Remove pointer for replies in handle_s11_pdu
 2019-04-03 09:52:18 +02:00
Pedro Alvarez 3e9f10e20d Adding S11 initialization in MME and SPGW as unix sockets. 2019-04-03 09:52:18 +02:00
Pedro Alvarez 5f7b6ba79e Split GTP-C and GTP-U functionality into seperate classes in the SPGW. Added GTP-U specific logging in the EPC. Added handle_s11_pdu function to both the MME GTP-C entity and the SPGW GTP-C entity. 2019-04-02 09:17:00 +02:00
Pedro Alvarez 6e500c5b86 Changed initilization of the NAS at the EPC, to make it easier to add new interfaces. 2019-03-20 14:00:02 +01:00
Pedro Alvarez add60c1288 Applied clang-format to the EPC. 2019-03-20 14:00:02 +01:00
Pedro Alvarez 179aeddfa2 Added encryption of security mode command and attach accept again. Attach is working with encryption. 2019-01-11 18:13:29 +00:00
Pedro Alvarez 997c24c099 Added config of cipher_algo and integ_algo initialization in NAS class. 2018-12-18 18:27:31 +00:00
Pedro Alvarez 5eacdd5418 Fixed compilation issues. Attach failing with COTS UE. 2018-12-18 16:48:25 +00:00
Pedro Alvarez 31a25067f5 Merging David Ruprecth's mme_msg_encryption branch into next. Not compiling. 2018-12-18 12:03:52 +00:00
David Rupprecht c480e57721 Config based security algorithm selection 2018-11-19 15:34:57 +01:00
David Rupprecht e547883a8f Wrapper functions for integrity generate 2018-11-18 20:30:22 +01:00
David Rupprecht 7eef2c1c4b start with decryption function 2018-11-15 23:02:30 +01:00
Andre Puschmann 23836a8ab3 Merge branch 'next' into nas_cleanup 2018-10-22 11:26:00 +02:00
Pedro Alvarez 3cddad79cc Adding ability to configure names of TUN interfaces. (#277) 
* added config option for tun dev names vs fixed names added config option for M1-U interface addr

* Added options to sgi_mb tun name.

* Added some comments to mbms.conf.example

* Added some comments to example configs to explain the new values.
 2018-10-05 11:12:31 +02:00
Pedro Alvarez 35ca9ffd34 Adding TTL option 2018-10-04 14:44:26 +02:00
Pedro Alvarez 3ecacdf3a6 Adding selection of local interface at the MBMS-GW. 2018-10-04 14:44:26 +02:00
Pedro Alvarez 8dc029cc47 Merging next into NAS cleanup. 2018-09-25 18:56:03 +01:00
Andre Puschmann 860d8af911 Merge branch 'master' into next 2018-09-24 15:50:10 +02:00
Zhe Huang 8b526e1c20 Fix SQN incrementation arithmetic (#212) 
* Fix SQN incrementation arithmetic

Current implementation of increment_sqn function increments the 48 bits
SQN directly by 1 which is incorrect according to 3GPP TS 33.102 version
11.5.1 Annex C. This bug causes commercial UEs to report AUTHENTICATION
FAILURE EMM cause #21 "synch failure" when SQN is out of sync.

According to 3GPP TS 33.102 version 11.5.1 Annex C, 48 bits SQN consists
of 43 bits SEQ and 5 bits IND parts where SEQ are incremented during
generation of authentication vector or resync procedure. A
new IND value is also assigned when an authentication vector is
generated. However, resync procedure will use the same IND value.

This patch implements the increment_sqn function according to 3GPP TS
33.102 version 11.5.1 Annex C. A new function increment_seq_after_resync
is added to handle the special case of SQN arithmetic during SQN
resynchronization.

This patch is tested with two comercial UEs (Oneplus One and Oneplus 3T).

* Fix the maximum value of SEQ value to be 2^43-1

The SEQ value is 43 bits long and previous maximum value has a typo (one
extra F) which allows SEQ value to be 2^47-1. This patch corrects the typo.
 2018-09-24 11:28:07 +02:00
Pedro Alvarez 9350e03810 Changed detach request and tracking area update request to nas.cc 2018-08-29 17:47:34 +01:00
Pedro Alvarez a9e5b3b8e9 Changed service request to nas.cc 2018-08-29 14:52:09 +01:00
Pedro Alvarez 3337f21ffa Added handle GUTI attach from known UE again. 2018-08-28 15:29:26 +01:00
Pedro Alvarez 0d80ae795b Added IMSI attach from unknown UE as a static function. 2018-08-27 19:17:23 +01:00
Pedro Alvarez 860e1b5491 Changing Handling of initial UE NAS messages to use static methods. Handling of unknown GUTI attach request should be ok. 2018-08-27 16:06:18 +01:00
Pedro Alvarez 9e808ff968 Starting to handle NAS initial UE messages as static methods of the nas class. 2018-08-24 18:15:06 +01:00
Pedro Alvarez e3286897ce Changed the rest of the nas handling to use send_downlink_nas_transport. 2018-08-22 16:59:40 +01:00
Pedro Alvarez f1d30c7f23 Changed handle guti_attach_from_known_ue and unknown_ue to use send_downstream_nas_message. 2018-08-22 15:00:01 +01:00
Pedro Alvarez dd725be60c Changed pack identity request. 2018-08-21 18:29:28 +01:00
Pedro Alvarez 65a5139751 Fixed mistake in downlink nas transport. Changing authication request to use downlink_nas_transport. 2018-08-21 17:51:00 +01:00
Pedro Alvarez 21c34b9ce5 Changing security mode complete to use downlink nas transport 2018-08-21 16:05:08 +01:00
Pedro Alvarez 93222f582c Changed authentication response to use downlink_nas_transport(). 2018-08-21 15:17:08 +01:00
Pedro Alvarez 3073ab6822 Changed dettach request to use downlink nas transport. 2018-08-21 14:11:28 +01:00
Pedro Alvarez 749e84315a Starting to add send_downlink_nas_transport helper function. 2018-08-21 12:57:23 +01:00
Pedro Alvarez 872f7adc49 Added find imsi from TMSI helper function. 2018-08-20 17:59:50 +01:00
Pedro Alvarez fa0c8d5995 Moved most of IMSI attach request into nas.cc. 2018-08-20 16:48:16 +01:00
Pedro Alvarez f6b8982939 Moved most of the GUTI attach to nas.cc. 2018-08-20 15:48:23 +01:00
Pedro Alvarez c518d3fde3 Starting to move inital UE messages to nas.cc. Breaking up attach request handling into smaller functions. 2018-08-16 17:45:39 +01:00
Pedro Alvarez 55675eb532 Fixed bug in setting MCC and MNC in attach accept. Attach seems to be working again. 2018-08-15 18:13:36 +01:00
Pedro Alvarez 7c53330bec Fixed NAS initialization. Attach request seems to work again now. 2018-08-14 13:59:05 +01:00
Pedro Alvarez 4ba777c9c3 Added nas log. Fixed gen_auth_info_anwser. Authentication is working again. 2018-07-24 18:38:16 +01:00