diff options
author | Neels Hofmeyr <neels@hofmeyr.de> | 2019-11-20 03:35:37 +0100 |
---|---|---|
committer | Neels Hofmeyr <neels@hofmeyr.de> | 2020-04-30 19:22:24 +0200 |
commit | ab7dc40f168da4326f207ef8aeeec40229c94486 (patch) | |
tree | ce45f461c6dee3a93ee99eb98e5af7ca8cb2257c /include | |
parent | 86b507b6ea529f9cf861286d8e6fa3b5fde851d2 (diff) |
D-GSM 1/n: add mslookup server in osmo-hlr
Implement the mslookup server to service remote mslookup requests.
This patch merely adds the logic to answer incoming mslookup requests, an
actual method to receive requests (mDNS) follows in a subsequent patch.
- API to configure service names and addresses for the local site (per MSC).
- determine whether a subscriber is on a local MSC
(checking the local proxy will be added in subsequent patch that adds proxy
capability).
- VTY config follows in a subsequent patch.
For a detailed overview of the D-GSM and mslookup related files, please see the
elaborate comment at the top of mslookup.c (already added in an earlier patch).
Change-Id: Ife4a61d71926d08f310a1aeed9d9f1974f64178b
Diffstat (limited to 'include')
-rw-r--r-- | include/osmocom/hlr/Makefile.am | 2 | ||||
-rw-r--r-- | include/osmocom/hlr/hlr.h | 7 | ||||
-rw-r--r-- | include/osmocom/hlr/mslookup_server.h | 65 | ||||
-rw-r--r-- | include/osmocom/hlr/timestamp.h | 28 |
4 files changed, 102 insertions, 0 deletions
diff --git a/include/osmocom/hlr/Makefile.am b/include/osmocom/hlr/Makefile.am index 532fa5d..5c96ec8 100644 --- a/include/osmocom/hlr/Makefile.am +++ b/include/osmocom/hlr/Makefile.am @@ -10,5 +10,7 @@ noinst_HEADERS = \ hlr_vty_subscr.h \ logging.h \ lu_fsm.h \ + mslookup_server.h \ rand.h \ + timestamp.h \ $(NULL) diff --git a/include/osmocom/hlr/hlr.h b/include/osmocom/hlr/hlr.h index 5885600..1269994 100644 --- a/include/osmocom/hlr/hlr.h +++ b/include/osmocom/hlr/hlr.h @@ -67,6 +67,13 @@ struct hlr { /* Bitmask of DB_SUBSCR_FLAG_* */ uint8_t subscr_create_on_demand_flags; unsigned int subscr_create_on_demand_rand_msisdn_len; + + struct { + struct { + uint32_t local_attach_max_age; + struct llist_head local_site_services; + } server; + } mslookup; }; extern struct hlr *g_hlr; diff --git a/include/osmocom/hlr/mslookup_server.h b/include/osmocom/hlr/mslookup_server.h new file mode 100644 index 0000000..5425328 --- /dev/null +++ b/include/osmocom/hlr/mslookup_server.h @@ -0,0 +1,65 @@ +/* Copyright 2019 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#pragma once + +struct osmo_mslookup_query; +struct osmo_mslookup_result; + +/*! mslookup service name used for roaming/proxying between osmo-hlr instances. */ +#define OSMO_MSLOOKUP_SERVICE_HLR_GSUP "gsup.hlr" + +/*! What addresses to return to mslookup queries when a subscriber is attached at the local site. + * Mapping of service name to IP address and port. This corresponds to the VTY config for + * 'mslookup' / 'server' [/ 'msc MSC-1-2-3'] / 'service sip.voice at 1.2.3.4 1234'. + */ +struct mslookup_service_host { + struct llist_head entry; + char service[OSMO_MSLOOKUP_SERVICE_MAXLEN+1]; + struct osmo_sockaddr_str host_v4; + struct osmo_sockaddr_str host_v6; +}; + +/*! Sets of mslookup_service_host per connected MSC. + * When there are more than one MSC connected to this osmo-hlr, this allows keeping separate sets of service addresses + * for each MSC. The entry with mslookup_server_msc_wildcard as MSC name is used for all MSCs (if no match for that + * particular MSC is found). This corresponds to the VTY config for + * 'mslookup' / 'server' / 'msc MSC-1-2-3'. + */ +struct mslookup_server_msc_cfg { + struct llist_head entry; + struct osmo_ipa_name name; + struct llist_head service_hosts; +}; + +struct mslookup_service_host *mslookup_server_service_get(const struct osmo_ipa_name *msc_name, const char *service); + +struct mslookup_service_host *mslookup_server_msc_service_get(struct mslookup_server_msc_cfg *msc, const char *service, + bool create); +int mslookup_server_msc_service_set(struct mslookup_server_msc_cfg *msc, const char *service, + const struct osmo_sockaddr_str *addr); +int mslookup_server_msc_service_del(struct mslookup_server_msc_cfg *msc, const char *service, + const struct osmo_sockaddr_str *addr); + +extern const struct osmo_ipa_name mslookup_server_msc_wildcard; +struct mslookup_server_msc_cfg *mslookup_server_msc_get(const struct osmo_ipa_name *msc_name, bool create); + +const struct mslookup_service_host *mslookup_server_get_local_gsup_addr(); +void mslookup_server_rx(const struct osmo_mslookup_query *query, + struct osmo_mslookup_result *result); diff --git a/include/osmocom/hlr/timestamp.h b/include/osmocom/hlr/timestamp.h new file mode 100644 index 0000000..9708985 --- /dev/null +++ b/include/osmocom/hlr/timestamp.h @@ -0,0 +1,28 @@ +/* Copyright 2019 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#pragma once + +#include <sys/time.h> +#include <stdbool.h> +#include <stdint.h> + +typedef time_t timestamp_t; +void timestamp_update(timestamp_t *timestamp); +bool timestamp_age(const timestamp_t *timestamp, uint32_t *age); |