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191f4b6eb3
Each VLR requesting auth tuples should use a distinct IND pool for 3G auth. So far we tied the IND to the GSUP peer connection; MSC and SGSN were always distinct GSUP peers, they ended up using distinct INDs. However, we have implemented a GSUP proxy, so that, in a distributed setup, a remotely roaming subscriber has only one direct GSUP peer proxying for both remote MSC and SGSN. That means as soon as a subscriber roams to a different site, the site's MSC and SGSN compete for the same IND bucket, waste SQNs rapidly and cause auth tuple generation load. So instead of using the local client as IND, persistently keep a list of VLR names and assign a different IND to each. Use the GSUP source_name as indicator, which reflects the actual remote VLR's name. Furthermore, make 100% sure that CS and PS pools can never collide, by keeping all CS pools odd numbered and all PS pools even numbered. Persist the site <-> IND assignments in the database. Add an IND test to db_test.c Related: OS#4319 Change-Id: I6f0a6bbef3a27507605c3b4a0e1a89bdfd468374
96 lines
2.9 KiB
SQL
96 lines
2.9 KiB
SQL
CREATE TABLE subscriber (
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-- OsmoHLR's DB scheme is modelled roughly after TS 23.008 version 13.3.0
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id INTEGER PRIMARY KEY,
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-- Chapter 2.1.1.1
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imsi VARCHAR(15) UNIQUE NOT NULL,
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-- Chapter 2.1.2
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msisdn VARCHAR(15) UNIQUE,
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-- Chapter 2.2.3: Most recent / current IMEISV
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imeisv VARCHAR,
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-- Chapter 2.1.9: Most recent / current IMEI
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imei VARCHAR(14),
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-- Chapter 2.4.5
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vlr_number VARCHAR(15),
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-- Chapter 2.4.6
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msc_number VARCHAR(15),
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-- Chapter 2.4.8.1
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sgsn_number VARCHAR(15),
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-- Chapter 2.13.10
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sgsn_address VARCHAR,
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-- Chapter 2.4.8.2
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ggsn_number VARCHAR(15),
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-- Chapter 2.4.9.2
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gmlc_number VARCHAR(15),
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-- Chapter 2.4.23
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smsc_number VARCHAR(15),
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-- Chapter 2.4.24
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periodic_lu_tmr INTEGER,
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-- Chapter 2.13.115
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periodic_rau_tau_tmr INTEGER,
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-- Chapter 2.1.1.2: network access mode
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nam_cs BOOLEAN NOT NULL DEFAULT 1,
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nam_ps BOOLEAN NOT NULL DEFAULT 1,
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-- Chapter 2.1.8
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lmsi INTEGER,
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-- The below purged flags might not even be stored non-volatile,
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-- refer to TS 23.012 Chapter 3.6.1.4
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-- Chapter 2.7.5
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ms_purged_cs BOOLEAN NOT NULL DEFAULT 0,
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-- Chapter 2.7.6
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ms_purged_ps BOOLEAN NOT NULL DEFAULT 0,
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-- Timestamp of last location update seen from subscriber
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-- The value is a string which encodes a UTC timestamp in granularity of seconds.
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last_lu_seen TIMESTAMP default NULL,
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last_lu_seen_ps TIMESTAMP default NULL,
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-- When a LU was received via a proxy, that proxy's hlr_number is stored here,
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-- while vlr_number reflects the MSC on the far side of that proxy.
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vlr_via_proxy VARCHAR,
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sgsn_via_proxy VARCHAR
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);
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CREATE TABLE subscriber_apn (
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subscriber_id INTEGER, -- subscriber.id
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apn VARCHAR(256) NOT NULL
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);
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CREATE TABLE subscriber_multi_msisdn (
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-- Chapter 2.1.3
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subscriber_id INTEGER, -- subscriber.id
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msisdn VARCHAR(15) NOT NULL
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);
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CREATE TABLE auc_2g (
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subscriber_id INTEGER PRIMARY KEY, -- subscriber.id
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algo_id_2g INTEGER NOT NULL, -- enum osmo_auth_algo value
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ki VARCHAR(32) NOT NULL -- hex string: subscriber's secret key (128bit)
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);
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CREATE TABLE auc_3g (
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subscriber_id INTEGER PRIMARY KEY, -- subscriber.id
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algo_id_3g INTEGER NOT NULL, -- enum osmo_auth_algo value
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k VARCHAR(32) NOT NULL, -- hex string: subscriber's secret key (128bit)
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op VARCHAR(32), -- hex string: operator's secret key (128bit)
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opc VARCHAR(32), -- hex string: derived from OP and K (128bit)
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sqn INTEGER NOT NULL DEFAULT 0, -- sequence number of key usage
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-- nr of index bits at lower SQN end
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ind_bitlen INTEGER NOT NULL DEFAULT 5
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);
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CREATE TABLE ind (
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cn_domain INTEGER NOT NULL,
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-- 3G auth IND bucket to be used for this VLR, where IND = (idx << 1) + cn_domain -1
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ind INTEGER PRIMARY KEY,
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-- VLR identification, usually the GSUP source_name
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vlr TEXT NOT NULL,
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UNIQUE (cn_domain, vlr)
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);
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CREATE UNIQUE INDEX idx_subscr_imsi ON subscriber (imsi);
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-- Set HLR database schema version number
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-- Note: This constant is currently duplicated in src/db.c and must be kept in sync!
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PRAGMA user_version = 6;
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