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WIP: diameter: add support for Cx (VoLTE) 

Change-Id: Icd623563c495fb6da4216bb6f74bc31873dc7d6e
This commit is contained in:
Alexander Couzens 2023-11-12 00:48:04 +01:00
parent e9c2b1ddaa
commit 862738f8ee
8 changed files with 982 additions and 12 deletions
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140
dia/diameter_3gpp_ts29_229.dia
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@ -24,6 +24,8 @@
@vendor 10415 3GPP
@inherits diameter_gen_base_rfc6733
@inherits diameter_etsi_es283_035
@inherits diameter_rfc4005_nasreq
;; only attributes required by other applications are defined
@ -32,7 +34,7 @@
Visited-Network-Identifier 600 OctetString MV
Public-Identity 601 UTF8String MV
Server-Name 602 UTF8String MV
;; Server-Capabilities 603 Grouped MV
Server-Capabilities 603 Grouped MV
Mandatory-Capability 604 Unsigned32 MV
Optional-Capability 605 Unsigned32 MV
User-Data 606 OctetString MV
@ -41,10 +43,10 @@
SIP-Authenticate 609 OctetString MV
SIP-Authorization 610 OctetString MV
SIP-Authentication-Context 611 OctetString MV
;; SIP-Auth-Data-Item 612 Grouped MV
SIP-Auth-Data-Item 612 Grouped MV
SIP-Item-Number 613 Unsigned32 MV
Server-Assignment-Type 614 Enumerated MV
;; Deregistration-Reason 615 Grouped MV
Deregistration-Reason 615 Grouped MV
Reason-Code 616 Enumerated MV
Reason-Info 617 UTF8String MV
Charging-Information 618 Grouped MV
@ -60,38 +62,50 @@
Feature-List-ID 629 Unsigned32 V
Feature-List 630 Unsigned32 V
Supported-Applications 631 Grouped V
;; Associated-Identities 632 Grouped V
Associated-Identities 632 Grouped V
Originating-Request 633 Enumerated MV
Wildcarded-Public-Identity 634 UTF8String V
;; SIP-Digest-Authenticate 635 Grouped V
SIP-Digest-Authenticate 635 Grouped V
Digest-Realm 104 UTF8String M ;; RFC-4590
Digest-Algorithm 111 UTF8String M ;; RFC-4590
Digest-QoP 110 UTF8String M ;; RFC-4590
Digest-HA1 121 UTF8String M ;; RFC-4590
UAR-Flags 637 Unsigned32 V
Loose-Route-Indication 638 Enumerated V
;; SCSCF-Restoration-Info 639 Grouped V
SCSCF-Restoration-Info 639 Grouped V
Path 640 OctetString V
Contact 641 OctetString V
;; Subscription-Info 642 Grouped V
Subscription-Info 642 Grouped V
Call-ID-SIP-Header 643 OctetString V
From-SIP-Header 644 OctetString V
To-SIP-Header 645 OctetString V
Record-Route 646 OctetString V
;; Associated-Registered-Identities 647 Grouped V
Associated-Registered-Identities 647 Grouped V
Multiple-Registration-Indication 648 Enumerated V
;; Restoration-Info 649 Grouped V
Restoration-Info 649 Grouped V
Session-Priority 650 Enumerated V
;; Identity-with-Emergency-Registration 651 Grouped V
Identity-with-Emergency-Registration 651 Grouped V
Priviledged-Sender-Indication 652 Enumerated V
LIA-Flags 653 Unsigned32 V
;; OC-Supported-Features TBD Grouped - ;; IETF draft-ietf-dime-02
;; OC-OLR TBD Grouped - ;; IETF draft-ietf-dime-02
Initial-CSeq-Sequence-Number 654 Unsigned32 V
SAR-Flags 655 Unsigned32 V
Allowed-WAF-WWSF-Identities 656 Grouped V
RTR-Flags 659 Unsigned32 V
P-CSCF-Subscription-Info 660 Grouped V
Registration-Time-Out 661 Time V
PCSCF-FQDN 665 DiameterIdentity V
@grouped
;; 6.3.4 Server-Capabilities AVP
Server-Capabilities ::= <AVP Header: 603 10415>
*[Mandatory-Capability]
*[Optional-Capability]
*[Server-Name]
*[AVP]
Charging-Information ::= < AVP Header : 618 >
[ Primary-Event-Charging-Function-Name ]
[ Secondary-Event-Charging-Function-Name ]
@ -110,3 +124,109 @@
*[ Acct-Application-Id ]
*[ Vendor-Specific-Application-Id ]
*[ AVP ]
;; 6.3.13
SIP-Auth-Data-Item ::= < AVP Header: 612 10415 >
[ SIP-Item-Number ]
[ SIP-Authentication-Scheme ]
[ SIP-Authenticate ]
[ SIP-Authorization ]
[ SIP-Authentication-Context ]
[ Confidentiality-Key ]
[ Integrity-Key ]
[ SIP-Digest-Authenticate ]
[ Framed-IP-Address ]
[ Framed-IPv6-Prefix ]
[ Framed-Interface-Id ]
*[ Line-Identifier ]
*[AVP]
;; 6.3.16
Deregistration-Reason ::= < AVP Header: 615 10415 >
{ Reason-Code }
[ Reason-Info ]
* [AVP]
;; 6.3.33 Associated-Identities
Associated-Identities ::= < AVP Header: 632 10415 >
*[ User-Name ]
*[ AVP ]
;; 6.3.36
SIP-Digest-Authenticate ::= < AVP Header: 635 10415>
{ Digest-Realm }
{ Digest-QoP }
{ Digest-HA1}
[ Digest-Algorithm ]
*[ AVP ]
;; 6.3.46 SCSCF-Restoration-Info AVP
SCSCF-Restoration-Info ::= < AVP Header: 639 10415>
{ User-Name }
1* { Restoration-Info }
[ Registration-Time-Out ]
[ SIP-Authentication-Scheme ]
*[ AVP ]
;; 6.3.49 Subscription-Info AVP
Subscription-Info ::= < AVP Header: 642 10415>
{ Call-ID-SIP-Header }
{ From-SIP-Header }
{ To-SIP-Header }
{ Record-Route }
{Contact}
*[ AVP ]
;; 6.3.50 Associated-Registered-Identities
Associated-Registered-Identities ::= < AVP Header: 647 10415 >
*[ User-Name ]
*[ AVP ]
;; 6.3.52 Restoration-Info AVP
Restoration-Info ::= < AVP Header: 649 10415>
{ Path }
{ Contact }
[ Initial-CSeq-Sequence-Number ]
[ Call-ID-SIP-Header ]
[ Subscription-Info ]
[ P-CSCF-Subscription-Info ]
*[ AVP ]
;; 6.3.57 Identity-with-Emergency-Registration
Identity-with-Emergency-Registration ::= < AVP Header: 651 10415 >
{ User-Name }
{ Public-Identity }
*[ AVP ]
;; 6.3.64 Allowed-WAF-WWSF-Identities AVP
Allowed-WAF-WWSF-Identities ::= < AVP Header: 656 10415 >
;; *[ WebRTC-Authentication-Function-Name ]
;; *[ WebRTC-Web-Server-Function-Name ]
*[ AVP]
;; 6.3.70 P-CSCF-Subscription-Info AVP
P-CSCF-Subscription-Info ::= < AVP Header: 660 10415>
{ Call-ID-SIP-Header }
{ From-SIP-Header }
{ To-SIP-Header }
{ Contact }
*[ AVP ]
;; 6.3.15
@enum Server-Assignment-Type
NO_ASSIGNMENT 0
REGISTRATION 1
RE_REGISTRATION 2
UNREGISTERED_USER 3
TIMEOUT_DEREGISTRATION 4
USER_DEREGISTRATION 5
TIMEOUT_DEREGISTRATION_STORE_SERVER_NAME 6
USER_DEREGISTRATION_STORE_SERVER_NAME 7
ADMINISTRATIVE_DEREGISTRATION 8
AUTHENTICATION_FAILURE 9
AUTHENTICATION_TIMEOUT 10
DEREGISTRATION_TOO_MUCH_DATA 11
AAA_USER_DATA_REQUEST 12
PGW_UPDATE 13
RESTORATION 14

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@ -0,0 +1,326 @@
;;
;; %CopyrightBegin%
;;
;; Copyright (C) 2023 by Alexander Couzens <lynxis@fe80.eu>
;;
;; This resembles 3GPP TS 29.272 version 17.2.0 Release 17
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;
;; %CopyrightEnd%
;;
;;
;; Edits:
;;
;;
@id 16777216
@name diameter_3gpp_ts29_229_cx
@vendor 10415 3GPP
@inherits diameter_gen_base_rfc6733
@inherits diameter_3gpp_base
@inherits diameter_3gpp_break_circles
@inherits diameter_3gpp_ts29_212
@inherits diameter_3gpp_ts29_214
@inherits diameter_3gpp_ts29_229
@inherits diameter_3gpp_ts29_272
@inherits diameter_3gpp_ts32_299
@inherits diameter_etsi_es283_034
@inherits diameter_rfc4006_cc
@inherits diameter_rfc5447
@inherits diameter_rfc5778
@inherits diameter_rfc7683
@inherits diameter_rfc7944
@inherits diameter_rfc8583
@avp_types
;; 6.3.74
Failed-PCSCF 664 Grouped MV
;; 6.3.76
PCSCF-IP-Address 666 Address V
;; 6.3.16
@grouped
Failed-PCSCF ::= < AVP Header: 664>
[ PCSCF-FQDN ]
*[ PCSCF-IP-Address ]
*[ AVP ]
@messages
;; 6.1.1 User-Authorization-Request (UAR) Command
UAR ::= < Diameter Header: 300, REQ, PXY >
< Session-Id >
{ Auth-Session-State }
{ Origin-Host }
{ Origin-Realm }
{ Destination-Realm }
{ User-Name }
{ Vendor-Specific-Application-Id }
{ Public-Identity }
{ Visited-Network-Identifier }
[ Destination-Host ]
[ DRMP ]
[ OC-Supported-Features ]
* [ Supported-Features ]
[ User-Authorization-Type ]
[ UAR-Flags ]
* [ AVP ]
* [ Proxy-Info ]
* [ Route-Record ]
;; 6.1.2 User-Authorization-Answer (UAA) Command
UAA ::= < Diameter Header: 300, PXY >
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Auth-Session-State }
{ Origin-Host }
{ Origin-Realm }
[ DRMP ]
[ Result-Code ]
[ Experimental-Result ]
[ OC-Supported-Features ]
[ OC-OLR ]
* [ Load ]
* [ Supported-Features ]
[ Server-Name ]
[ Server-Capabilities ]
* [ AVP ]
[ Failed-AVP ]
* [ Proxy-Info ]
* [ Route-Record ]
;; 6.1.3 Server-Assignment-Request (SAR) Command
SAR ::= < Diameter Header: 301, REQ, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Auth-Session-State }
{ Origin-Host }
{ Origin-Realm }
{ Destination-Realm }
{ Server-Name }
{ Server-Assignment-Type }
{ User-Data-Already-Available }
[ DRMP ]
[ Destination-Host ]
[ User-Name ]
[ OC-Supported-Features ]
*[ Supported-Features ]
*[ Public-Identity ]
[ Wildcarded-Public-Identity ]
[ SCSCF-Restoration-Info ]
[ Multiple-Registration-Indication ]
[ Session-Priority ]
[ SAR-Flags ]
[ Failed-PCSCF ]
*[ AVP ]
*[ Proxy-Info ]
*[ Route-Record ]
;; 6.1.4 Server-Assignment-Answer (SAA) Command
SAA ::= < Diameter Header: 301, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Origin-Realm }
{ Origin-Host }
{ Auth-Session-State }
[ Wildcarded-Public-Identity ]
[ User-Name ]
[ User-Data ]
[ Server-Name ]
[ Result-Code ]
[ Priviledged-Sender-Indication ]
[ OC-Supported-Features ]
[ OC-OLR ]
[ Loose-Route-Indication ]
[ Failed-AVP ]
[ Experimental-Result ]
[ DRMP ]
[ Charging-Information ]
[ Associated-Registered-Identities ]
[ Associated-Identities ]
[ Allowed-WAF-WWSF-Identities ]
*[ Supported-Features ]
*[ SCSCF-Restoration-Info ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ Load ]
*[ AVP ]
;; 6.1.5 Location-Info-Request (LIR) Command
LIR ::= < Diameter Header: 302, REQ, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Public-Identity }
{ Origin-Realm }
{ Origin-Host }
{ Destination-Realm }
{ Auth-Session-State }
[ User-Authorization-Type ]
[ Session-Priority ]
[ Originating-Request ]
[ OC-Supported-Features ]
[ Destination-Host ]
[ DRMP ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ AVP ]
;; 6.1.6 Location-Info-Answer (LIA) Command
LAI ::= < Diameter Header: 302, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Origin-Realm }
{ Origin-Host }
{ Auth-Session-State }
[ Wildcarded-Public-Identity ]
[ Server-Name ]
[ Server-Capabilities ]
[ Result-Code ]
[ OC-Supported-Features ]
[ OC-OLR ]
[ LIA-Flags ]
[ Failed-AVP ]
[ Experimental-Result ]
[ DRMP ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ Load ]
*[ AVP ]
;; 6.1.7 Multimedia-Auth-Request (MAR) Command
MAR ::= < Diameter Header: 303, REQ, PXY >
< Session-Id >
{ Vendor-Specific-Application-Id }
{ User-Name }
{ Server-Name }
{ SIP-Number-Auth-Items }
{ SIP-Auth-Data-Item }
{ Public-Identity }
{ Origin-Realm }
{ Origin-Host }
{ Destination-Realm }
{ Auth-Session-State }
[ OC-Supported-Features ]
[ Destination-Host ]
[ DRMP ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ AVP ]
;; 6.1.8 Multimedia-Auth-Answer (MAA) Command
MAA ::= < Diameter Header: 303, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Origin-Realm }
{ Origin-Host }
{ Auth-Session-State }
[ User-Name ]
[ SIP-Number-Auth-Items ]
[ Result-Code ]
[ Public-Identity ]
[ OC-Supported-Features ]
[ OC-OLR ]
[ Failed-AVP ]
[ Experimental-Result ]
[ DRMP ]
*[SIP-Auth-Data-Item ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ Load ]
*[ AVP ]
;; 6.1.9 Registration-Termination-Request (RTR) Command
RTR ::= < Diameter Header: 304, REQ, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ User-Name }
{ Origin-Realm }
{ Origin-Host }
{ Destination-Realm }
{ Deregistration-Reason }
{ Auth-Session-State }
[ RTR-Flags ]
[ DRMP ]
[ Associated-Identities ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Public-Identity ]
*[ Proxy-Info ]
*[ AVP ]
;; 6.1.10 Registration-Termination-Answer (RTA) Command
RTA ::= < Diameter Header: 304, PXY >
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Origin-Realm }
{ Origin-Host }
{ Auth-Session-State }
[ Result-Code ]
[ Failed-AVP ]
[ Experimental-Result ]
[ DRMP ]
[ Associated-Identities ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ Identity-with-Emergency-Registration ]
*[ AVP ]
;; 6.1.11 Push-Profile-Request (PPR) Command
PPR ::= < Diameter Header: 305, REQ, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ User-Name }
{ Origin-Realm }
{ Origin-Host }
{ Destination-Realm }
{ Destination-Host }
{ Auth-Session-State }
[ User-Data ]
[ SIP-Auth-Data-Item ]
[ DRMP ]
[ Charging-Information ]
[ Allowed-WAF-WWSF-Identities ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ AVP ]
;; 6.1.12 Push-Profile-Answer (PPA) Command
PAA::= < Diameter Header: 305, PXY>
< Session-Id >
{ Vendor-Specific-Application-Id }
{ Origin-Realm }
{ Origin-Host }
{ Auth-Session-State }
[Result-Code ]
[ Failed-AVP ]
[ Experimental-Result ]
[ DRMP ]
*[ Supported-Features ]
*[ Route-Record ]
*[ Proxy-Info ]
*[ AVP ]

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@ -0,0 +1,75 @@
;;
;; %CopyrightBegin%
;;
;; Copyright (C) 2023 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
;; Author: Alexander Couzens <lynxis@fe80.eu>
;;
;; This resembles 3GPP TS 29.273 version 15.4.0 Release 15
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;
;; %CopyrightEnd%
;;
@id 16777231
@name diameter_etsi_es283_035
@prefix diameter_e4
@vendor 13019 ETSI
@inherits diameter_gen_base_rfc6733
;; only attributes required by other applications are defined
@avp_types
Location-Information 350 Grouped V ;; 7.3.1
Policy-Control-Contact-Point 351 DiameterIdentity V ;; 7.3.2
Terminal-Type 352 OctetString V ;; 7.3.3
Requested-Information 353 Enumerated V ;; 7.3.4
Event-Type 354 Enumerated V ;; 7.3.6
Line-Identifier 500 OctetString V ;; 7.3.5
Civic-Location 355 OctetString V ;; 7.3.1.A
Geospatial-Location 356 OctetString V ;; 7.3.1.B
@grouped
;; 7.3.1
Location-Information ::= < AVP Header: 350 13019 >
[Line-Identifier]
[Civic-Location]
[Geospatial-Location]
*[AVP]
;; 7.3.4
@enum Requested-Information
IP-CONNECTIVITY-USER-ID 0
LOCATION-INFORMATION 1
POLICY-CONTROL-CONTACT-POINT 2
ACCESS-NETWORK-TYPE 3
TERMINAL-TYPE 4
LOGICAL-ACCESS-ID 5
PHYSICAL-ACCESS-ID 6
;; 7.3.6
@enum Event-Type
USER-LOGON 0
LOCATION-INFORMATION-CHANGED 1
POLICY-CONTROL-CONTACT-POINT-CHANGED 2
ACCESS-NETWORK-TYPE-CHANGED 3
TERMINAL-TYPE-CHANGED 4
LOGICAL-ACCESS-ID-CHANGED 5
PHYSICAL-ACCESS-ID-CHANGED 6
IP-ADDRESS-CHANGED 7
INITIAL-GATE-SETTING-CHANGED 8
QOS-PROFILE-CHANGED 9
USER-LOGOFF 10

42
dia/diameter_rfc4740.dia Normal file
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@ -0,0 +1,42 @@
;;
;; %CopyrightBegin%
;;
;; Transcribed from RFC 4740 by Alexander Couzens <lynxis@fe80.eu>
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;
;; %CopyrightEnd%
;;
;;
;; RFC 4740, Diameter Session Initiation Protocol (SIP) Application
;;
@id 1
@inherits diameter_gen_base_rfc6733
;; ===========================================================================
@avp_types
ERP-RK-Request 618 Grouped -
ERP-Realm 619 DiameterIdentity -
;; ===========================================================================
@grouped
ERP-RK-Request ::= < AVP Header: 618 >
{ ERP-Realm }
* [ AVP ]

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@ -0,0 +1,54 @@
;;
;; %CopyrightBegin%
;;
;; Copyright (C) 2023 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
;; Author: Alexander Couzens <lynxis@fe80.eu>
;;
;; This resembles 3GPP TS 29.273 version 15.4.0 Release 15
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;
;; %CopyrightEnd%
;;
;;
;; Edits:
;;
;;
@id 1
@inherits diameter_gen_base_rfc6733
;; only used AVP are defined here.
;; ===========================================================================
@avp_types
SourceID 649 DiameterIdentity - ;; 7.4
Load 650 Grouped - ;; 7.1
Load-Type 651 Enumerated - ;; 7.2
Load-Value 652 Unsigned64 - ;; 7.3
@grouped
;; 7.1
Load ::= < AVP Header: 650 >
[ Load-Type ]
[ Load-Value ]
[ SourceID ]
* [ AVP ]
@enum Load-Type
HOST 0 ;; The load report is for a host.
PEER 1 ;; The load report is for a peer.

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@ -0,0 +1,131 @@
-module(osmo_cx2gsup).
-behavior(gen_server).
-include_lib("diameter/include/diameter.hrl").
-include_lib("diameter/include/diameter_gen_base_rfc6733.hrl").
-export([main/1]).
% API
-export([start_link/0]).
-export([start/0, stop/0]).
% gen_server callbacks
-export([init/1, handle_call/3, handle_cast/2, handle_info/2]).
-export([code_change/3, terminate/2]).
-define(SERVER, ?MODULE).
% Diameter application definitions
-define(VENDOR_ID_3GPP, 10415).
-define(VENDOR_ID_3GPP2, 5535).
-define(VENDOR_ID_ETSI, 13019).
-define(DIA_STATS_TAB, iwf_stats).
-define(DIA_STATS_COUNTERS, [event_OK, event_ERR]).
-define(SVC_NAME, ?MODULE).
-define(APP_ALIAS, ?MODULE).
-define(CALLBACK_MOD, osmo_cx2gsup_cb).
-define(DIAMETER_DICT_CX, diameter_3gpp_ts29_292_cx).
-define(APPID_CX, #'diameter_base_Vendor-Specific-Application-Id'{'Vendor-Id'=10415, 'Auth-Application-Id'=[16777216]}).
-define(SERVICE(Name), [{'Origin-Host', application:get_env(osmo_cx2gsup, origin_host, "hss.localdomain")},
{'Origin-Realm', application:get_env(osmo_cx2gsup, origin_realm, "localdomain")},
{'Vendor-Id', application:get_env(osmo_cx2gsup, vendor_id, 0)},
{'Origin-State-Id', diameter:origin_state_id()},
{'Product-Name', "osmo_dia2gsup"},
{'Auth-Application-Id', []},
{'Vendor-Specific-Application-Id', [?APPID_CX]},
{'Supported-Vendor-Id', [?VENDOR_ID_3GPP, ?VENDOR_ID_ETSI, ?VENDOR_ID_3GPP2]},
{application,
[{alias, ?APP_ALIAS},
{dictionary, ?DIAMETER_DICT_CX},
{module, ?CALLBACK_MOD}]
}]).
%% ------------------------------------------------------------------
%% API
%% ------------------------------------------------------------------
start_link() ->
gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
start() ->
application:ensure_all_started(?MODULE),
start_link().
stop() ->
gen_server:cast(?SERVER, stop).
main(_Args) ->
application:ensure_all_started(?MODULE),
timer:sleep(infinity).
%% ------------------------------------------------------------------
%% gen_server Function Definitions
%% ------------------------------------------------------------------
%% @callback gen_server
init(State) ->
% DIAMETER side
SvcName = ?MODULE,
diameter:start_service(SvcName, ?SERVICE(SvcName)),
Ip = application:get_env(osmo_cx2gsup, diameter_ip, "127.0.0.9"),
Port = application:get_env(osmo_cx2gsup, diameter_port, 3868),
Proto = application:get_env(osmo_cx2gsup, diameter_proto, sctp),
ConnectTimer = application:get_env(osmo_cx2gsup, diameter_connect_timer, 30000),
listen(?SVC_NAME, {address, Proto, element(2,inet:parse_address(Ip)), Port}, {timer, ConnectTimer}),
lager:info("Diameter HSS Application started on IP ~s, ~p port ~p~n", [Ip, Proto, Port]),
{ok, State}.
%% @callback gen_server
handle_call(_Req, _From, State) ->
{noreply, State}.
%% @callback gen_server
handle_cast(stop, State) ->
{stop, normal, State};
handle_cast(_req, State) ->
{noreply, State}.
%% @callback gen_server
handle_info(_Info, State) ->
{noreply, State}.
%% @callback gen_server
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
%% @callback gen_server
terminate(normal, _State) ->
diameter:stop_service(?SVC_NAME),
lager:info("Diameter HSS Application stopped.~n"),
ok;
terminate(shutdown, _State) ->
ok;
terminate({shutdown, _Reason}, _State) ->
ok;
terminate(_Reason, _State) ->
ok.
%% ------------------------------------------------------------------
%% Internal Function Definitions
%% ------------------------------------------------------------------
listen(Name, {address, Protocol, IPAddr, Port}, {timer, ConnectTimer}) ->
TransOpts = [{transport_module, tmod(Protocol)},
{transport_config, [{reuseaddr, true},
{ip, IPAddr}, {port, Port}]},
{connect_timer, ConnectTimer}],
{ok, _} = diameter:add_transport(Name, {listen, TransOpts}).
tmod(tcp) -> diameter_tcp;
tmod(sctp) -> diameter_sctp.

217
src/osmo_cx2gsup_cb.erl Normal file
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@ -0,0 +1,217 @@
-module(osmo_cx2gsup_cb).
-include_lib("diameter/include/diameter.hrl").
-include_lib("diameter/include/diameter_gen_base_rfc6733.hrl").
-include_lib("diameter_3gpp_ts29_229_cx.hrl").
-include_lib("osmo_gsup/include/gsup_protocol.hrl").
-define(DIA_VENDOR_3GPP, 10415).
%% diameter callbacks
-export([peer_up/3, peer_down/3, pick_peer/4, prepare_request/3, prepare_retransmit/3,
handle_answer/4, handle_error/4, handle_request/3]).
-define(UNEXPECTED, erlang:error({unexpected, ?MODULE, ?LINE})).
peer_up(_SvcName, {PeerRef, Caps}, State) ->
lager:info("Peer up ~p - ~p~n", [PeerRef, lager:pr(Caps, ?MODULE)]),
State.
peer_down(_SvcName, {PeerRef, Caps}, State) ->
lager:info("Peer down ~p - ~p~n", [PeerRef, lager:pr(Caps, ?MODULE)]),
State.
pick_peer(_, _, _SvcName, _State) ->
?UNEXPECTED.
prepare_request(_, _SvcName, _Peer) ->
?UNEXPECTED.
prepare_retransmit(_Packet, _SvcName, _Peer) ->
?UNEXPECTED.
handle_answer(_Packet, _Request, _SvcName, _Peer) ->
?UNEXPECTED.
handle_error(_Reason, _Request, _SvcName, _Peer) ->
lager:error("Request error: ~p~n", [_Reason]),
?UNEXPECTED.
% transient (only in Experimental-Result-Code)
-define(DIAMETER_AUTHENTICATION_DATA_UNAVAILABLE, 4181).
-define(DIAMETER_ERROR_CAMEL_SUBSCRIPTION_PRESENT, 4182).
% permanent (only in Experimental-Result-Code)
-define(DIAMETER_ERROR_USER_UNKNOWN, 5001).
-define(DIAMETER_AUTHORIZATION_REJECTED, 5003).
-define(DIAMETER_ERROR_ROAMING_NOT_ALLOWED, 5004).
-define(DIAMETER_MISSING_AVP, 5005).
-define(DIAMETER_UNABLE_TO_COMPLY, 5012).
-define(DIAMETER_ERROR_UNKNOWN_EPS_SUBSCRIPTION, 5420).
-define(DIAMETER_ERROR_RAT_NOT_ALLOWED, 5421).
-define(DIAMETER_ERROR_EQUIPMENT_UNKNOWN, 5422).
-define(DIAMETER_ERROR_UNKOWN_SERVING_NODE, 5423).
% 10.5.5.14
-define(GMM_CAUSE_IMSI_UNKNOWN, 16#02).
-define(GMM_CAUSE_ILLEGAL_MS, 16#03).
-define(GMM_CAUSE_GPRS_NOTALLOWED, 16#07).
-define(GMM_CAUSE_PLMN_NOTALLOWED, 16#0b).
-define(GMM_CAUSE_LA_NOTALLOWED, 16#0c).
-define(GMM_CAUSE_ROAMING_NOTALLOWED, 16#0d).
-define(GMM_CAUSE_NO_SUIT_CELL_IN_LA, 16#0f).
-define(GMM_CAUSE_NET_FAIL, 16#11).
-define(GMM_CAUSE_CONGESTION, 16#16).
-define(GMM_CAUSE_GSM_AUTH_UNACCEPT, 16#17).
-define(GMM_CAUSE_INV_MAND_INFO, 16#60).
-define(GMM_CAUSE_PROTO_ERR_UNSPEC, 16#6f).
-define(EXP_RES(Exp), #'Experimental-Result'{'Vendor-Id'=?DIA_VENDOR_3GPP, 'Experimental-Result-Code'=Exp}).
%% see 29.272 Annex A/B
-type empty_or_intl() :: [] | [integer()].
-spec gsup_cause2dia(integer()) -> {empty_or_intl(), empty_or_intl()}.
gsup_cause2dia(?GMM_CAUSE_IMSI_UNKNOWN) -> {[], [?EXP_RES(?DIAMETER_ERROR_USER_UNKNOWN)]};
gsup_cause2dia(?GMM_CAUSE_ILLEGAL_MS) -> {[], [?EXP_RES(?DIAMETER_ERROR_USER_UNKNOWN)]};
gsup_cause2dia(?GMM_CAUSE_PLMN_NOTALLOWED) -> {[], [?EXP_RES(?DIAMETER_ERROR_ROAMING_NOT_ALLOWED)]};
gsup_cause2dia(?GMM_CAUSE_GPRS_NOTALLOWED) -> {[], [?EXP_RES(?DIAMETER_ERROR_UNKNOWN_EPS_SUBSCRIPTION)]};
gsup_cause2dia(?GMM_CAUSE_LA_NOTALLOWED) -> {[?DIAMETER_AUTHORIZATION_REJECTED], []};
gsup_cause2dia(?GMM_CAUSE_ROAMING_NOTALLOWED) -> {[], [?EXP_RES(?DIAMETER_ERROR_ROAMING_NOT_ALLOWED)]};
gsup_cause2dia(?GMM_CAUSE_NO_SUIT_CELL_IN_LA) -> {[], [?EXP_RES(?DIAMETER_ERROR_UNKNOWN_EPS_SUBSCRIPTION)]};
gsup_cause2dia(?GMM_CAUSE_NET_FAIL) -> {[?DIAMETER_UNABLE_TO_COMPLY], []};
gsup_cause2dia(?GMM_CAUSE_CONGESTION) -> {[?DIAMETER_UNABLE_TO_COMPLY], []};
gsup_cause2dia(?GMM_CAUSE_INV_MAND_INFO) -> {[?DIAMETER_MISSING_AVP], []};
gsup_cause2dia(?GMM_CAUSE_PROTO_ERR_UNSPEC) -> {[?DIAMETER_UNABLE_TO_COMPLY], []};
gsup_cause2dia(_) -> {[?DIAMETER_UNABLE_TO_COMPLY], []}.
% get the value for a tiven key in Map1. If not found, try same key in Map2. If not found, return Default
-spec twomap_get(atom(), map(), map(), any()) -> any().
twomap_get(Key, Map1, Map2, Default) ->
maps:get(Key, Map1, maps:get(Key, Map2, Default)).
dia_sip2gsup(#'SIP-Auth-Data-Item'{'SIP-Authenticate' = [Authenticate], 'SIP-Authorization' = [Authorization],
'Confidentiality-Key' = [CKey], 'Integrity-Key' = [IKey]}) ->
#{rand => list_to_binary(lists:sublist(Authenticate, 1, 16)),
autn=> list_to_binary(lists:sublist(Authenticate, 17, 16)),
res=> list_to_binary(Authorization),
ik=> list_to_binary(IKey),
ck=> list_to_binary(CKey)}.
-spec gsup_tuple2dia_sip('GSUPAuthTuple'(), integer()) -> #'E-UTRAN-Vector'{}.
gsup_tuple2dia_sip(#{autn:=Autn, ck:=Ck, ik:=Ik, rand:=Rand, res:=Res}, Idx) ->
#'SIP-Auth-Data-Item'{
'SIP-Item-Number' = Idx,
'Confidentiality-Key' = Ck,
'Integrity-Key' = Ik,
'SIP-Authenticate' = lists:merge(Rand, Autn),
'SIP-Authorization' = Res
}.
-spec gsup_tuples2dia_sip(['GSUPAuthTuple'()]) -> [#'E-UTRAN-Vector'{}].
gsup_tuples2dia_sip(List) -> gsup_tuples2dia_sip(List, [], 1).
gsup_tuples2dia_sip([], Out, _Idx) -> Out;
gsup_tuples2dia_sip([Head|Tail], Out, Ctr) ->
Dia = gsup_tuple2dia_sip(Head, Ctr),
gsup_tuples2dia_sip(Tail, [Dia|Out], Ctr+1).
-type int_or_false() :: false | integer().
-spec gsup_tuples2dia(['GSUPAuthTuple'()], int_or_false()) -> #'Authentication-Info'{}.
gsup_tuples2dia(Tuples, NumEutran) ->
case NumEutran of
false -> EutranVecs = [];
0 -> EutranVecs = [];
_ -> EutranVecs = gsup_tuples2dia_sip(lists:sublist(Tuples, NumEutran))
end,
[EutranVecs].
-type binary_or_false() :: false | binary().
-spec req_resynchronization_info([tuple()]) -> binary_or_false().
req_resynchronization_info(#'SIP-Auth-Data-Item'{'SIP-Authorization'=[]}) ->
false;
req_resynchronization_info(#'SIP-Auth-Data-Item'{'SIP-Authorization'=[Auth]}) ->
list_to_binary(Auth);
req_resynchronization_info(_) ->
false.
% Cx
handle_request(#diameter_packet{msg = Req, errors = []}, _SvcName, {_, Caps}) when is_record(Req, 'UAR') ->
% extract relevant fields from DIAMETER ULR
#diameter_caps{origin_host = {OH,_}, origin_realm = {OR,_}} = Caps,
#'UAR'{'Session-Id' = SessionId,
'UAR-Flags' = UarFlags,
'User-Name' = UserName} = Req,
ServerName = "sip:scscf.core.osmocom.org:6060",
Resp = #'UAA'{'Session-Id'= SessionId, 'Auth-Session-State'=1,
'Origin-Host'=OH, 'Origin-Realm'=OR,
'Experimental-Result'=2001,
'Server-Name'=ServerName},
lager:info("UAA Resp: ~p~n", [Resp]),
{reply, Resp};
% Server Assignement Request
handle_request(#diameter_packet{msg = Req, errors = []}, _SvcName, {_, Caps}) when is_record(Req, 'SAR') ->
% extract relevant fields from DIAMETER ULR
#diameter_caps{origin_host = {OH,_}, origin_realm = {OR,_}} = Caps,
#'SAR'{'Session-Id' = SessionId,
'User-Name' = UserName,
'Server-Name' = ServerName,
'Server-Assignment-Type' = Type} = Req,
% TODO: Type == 0
ServerName = "sip:scscf.core.osmocom.org:6060",
Resp = #'SAA'{'Session-Id'= SessionId, 'Auth-Session-State'=1,
'Origin-Host'=OH, 'Origin-Realm'=OR,
'Experimental-Result'=2001,
'User-Name' = UserName,
'Server-Name'=ServerName},
lager:info("SAA Resp: ~p~n", [Resp]),
{reply, Resp};
% Multimedia Authentication Request
handle_request(#diameter_packet{msg = Req, errors = []}, _SvcName, {_, Caps}) when is_record(Req, 'MAR') ->
#diameter_caps{origin_host = {OH,_}, origin_realm = {OR,_}} = Caps,
#'MAR'{'Session-Id' = SessionId,
'User-Name' = UserName,
'Server-Name' = ServerName,
'Public-Identity' = PublicIdentity,
'SIP-Auth-Data-Item' = AuthData,
'SIP-Number-Auth-Items' = NumAuthData} = Req,
% TODO: parse User-Name and Public-Identity, get the MNC/MCC from it
GsupTx1 = #{message_type => send_auth_info_req, imsi => list_to_binary(UserName),
supported_rat_types => [rat_eutran_sgs], current_rat_type => rat_eutran_sgs},
ResyncInfo = req_resynchronization_info(Req),
case ResyncInfo of
false ->
GsupTx2 = #{};
ValidResyncInfo ->
GsupTx2 = #{rand => binary:part(ValidResyncInfo, 0, 16),
auts => binary:part(ValidResyncInfo, 16, 14)}
end,
GsupTx = maps:merge(GsupTx1, GsupTx2),
GsupRx = gen_server:call(gsup_client, {transceive_gsup, GsupTx, send_auth_info_res, send_auth_info_err}),
lager:info("GsupRx: ~p~n", [GsupRx]),
case GsupRx of
#{message_type:=send_auth_info_res, auth_tuples:=GsupAuthTuples} ->
AuthInfo = gsup_tuples2dia(GsupAuthTuples, NumAuthData),
Resp = #'MAA'{'Session-Id'=SessionId, 'Origin-Host'=OH, 'Origin-Realm'=OR,
'Experimental-Result'=2001, 'Auth-Session-State'=1,
'SIP-Auth-Data-Item'=AuthInfo};
#{message_type := send_auth_info_err, cause:=Cause} ->
{Res, ExpRes} = gsup_cause2dia(Cause),
Resp = #'MAA'{'Session-Id'=SessionId, 'Origin-Host'=OH, 'Origin-Realm'=OR,
'Result-Code'=Res, 'Experimental-Result'=ExpRes,
'Auth-Session-State'=1};
timeout ->
Resp = #'MAA'{'Session-Id'=SessionId, 'Origin-Host'=OH, 'Origin-Realm'=OR,
'Result-Code'=4181, 'Auth-Session-State'=1}
end,
lager:info("Resp: ~p~n", [Resp]),
{reply, Resp};
handle_request(Packet, _SvcName, {_,_}) ->
lager:error("Unsuppoerted message: ~p~n", [Packet]),
discard.

9
src/osmo_dia2gsup_sup.erl
View File

@ -15,9 +15,14 @@ init([]) ->
Args = [{local, gsup_client}, gsup_client, [HlrIp, HlrPort, "HSS-00-00-00-00-00-00"], [{debug, [trace]}]],
GsupChild = {gsup_client, {gen_server, start_link, Args}, permanent, 2000, worker, [gsup_client]},
% DIAMETER side
DiaServer = {osmo_dia2gsup,{osmo_dia2gsup,start_link,[]},
S6a = {osmo_dia2gsup,{osmo_dia2gsup,start_link,[]},
permanent,
5000,
worker,
[server_cb]},
{ok, { {one_for_one, 5, 10}, [DiaServer, GsupChild]} }.
Cx = {osmo_cx2gsup, {osmo_cx2gsup,start_link,[]},
permanent,
5000,
worker,
[osmo_cx2gsup_cb]},
{ok, { {one_for_one, 5, 10}, [S6a, Cx, GsupChild]} }.