Add optional feature: retrieve GTP-U traffic counters per hNodeB (not
per individual subscriber!) using nftables, to provide new rate_ctr
stats.
This is a "workaround" to get performance indicators per hNodeB, without
needing a UPF that supports URR.
When an hNodeB registers, set up nftables rules to count GTP-U packets
(UDP port 2152) to and from that hNodeB's address -- we are assuming
that it is the same address that Iuh is connecting from.
From the per-hNodeB packet and byte counters from nftables, also derive
a "UE bytes" counter, which is counting only the GTP-U payload. Assume
IP header of 20 bytes; UDP and GTP-U headers are 8 bytes each:
ue_bytes = total_bytes - packets * (20 + 8 + 8)
Query these periodically, as configurable by new timer X34. Default is
one second of wait time between querying counters (excluding the time it
takes to retrieve and update the counters).
Add compile-time switch --enable-nftables, to build with/without
external dependency libnftables. Default is without, as before.
Add jenkins axis NFTABLES to switch --enable-nftables.
Add cfg file option 'hnbgw' / 'nft-kpi' to enable use of nftables.
This requires osmo-hnbgw to be run with cap_net_admin.
The VTY config commands are always visible -- simplifies VTY testing.
Refuse to start osmo-hnbgw when the user is requesting nft-kpi in the
config but when built without --enable-nftables.
Do nft commands in 2 separate threads. Run the same request queue
implementation twice, with two thread workers to handle them:
- one thread receives all requests to init the nft table, add and remove
hNodeB counters, and start and stop counting for a specific hNodeB.
- Another thread handles all retrieval and parsing of counters from nft.
The main() thread hence never blocks for nftables commands, and services
the responses from nft when they are ready, via an osmo_it_q registered
in the main() select loop.
Persistently keep an nftables named counter for each seen hNodeB cell id
in the nftables ruleset, for the lifetime of a hnb_persistent instance
that holds the target rate_ctrs.
Add the rules to feed into these persistent counters to the ruleset when
the particular cell attaches and detaches via HNBAP HNB (De-)Register.
On hnb_persistent_free(), remove all items relating to this cell id from
nftables, including the persistent named counters.
Loosely related: upcoming patches will implement
- a hashtable for faster cell id lookup (important for updating
counters)
Iecb81eba28263ecf90a09c108995f6fb6f5f81f2
- proper MNC-3-digit support in cell ids (better have a 100% correct
primary key).
Id9a91c80cd2745424a916aef4736993bb7cd8ba0
- idle timeout for disconnected hnbp, so we are sure stale state does
not build up for eternity.
Ic819d7cbc03fb39e98c204b70d016c5170dc6307
Related: SYS#6773
Related: OS#6425
Change-Id: Ib2f0a9252715ea4b2fe9c367aa65f771357768ca
* Explicitly chown /var/lib/osmocom to osmocom:osmocom, instead of
relying on systemd to do it when the service starts up. This does not
work with the systemd versions in debian 10 and almalinux 8.
* deb: Use "useradd" instead of the interactive "adduser" perl script
from Debian. This makes it consistent with how we do it in rpm, and
avoids the dependency on "adduser".
* deb: Consistently use tabs through the file, instead of mixing tabs
and spaces.
* deb: Remove support for the "dpkg-statoverride --list" logic. This
seems to be a rather obscure feature to override permissions for
certain files or directories, for which it does not seem to be a good
idea to make the postinst script less maintainable. Something similar
can be achieved by using your own Osmocom config file in a different
path with different permissions.
Related: OS#4107
Change-Id: I6dd0205fb65d4ad5a79821c111865e67fb293a73
Create osmocom user & group during package installation.
Fix the configuration dir/files permission to match.
Related: OS#4107
Tweaked-By: Oliver Smith <osmith@sysmocom.de>
Change-Id: Ife9433291ae03392ae114ebda418bce8cc93fe3b
A typical OS imposed limit is 1024 open FD, which is too low when there
are thousands of HNB.
In systemd service file, set a super high limit of 65536.
In osmo-hnbgw's user manual, add section 'Configure limits' describing
this in detail.
Related: OS#6256
Related: osmo-bsc I26c4058484b11ff1d035a919bf88824c3af14e71
Change-Id: I5333765199cf9e3e5a570f85b85d2b7423d34a4d
We have not a single example yet showing point code and SCCP address
configuration. Add this example, which will also show how the config
file syntax changes while introducing CN pooling in upcoming patches.
Related: SYS#6412
Change-Id: I42c3b434a7339cc3efb27b43c893cfb734de9ca4
By default systemd will execute service with root directory (or home directory for user instance) which might result in
attempts to create files in unexpected place. Let's set it to 'osmocom' subdir of state directory (/var/lib for system instance) instead.
Related: OS#4821
Change-Id: I3133dc7a687550901841755461db6020ee96d6b1
osmo-hnbgw lacks support for an co-located media gateway. This makes it
virtually impossible to isolate the HNB from the core network properly.
Lets add MGCP support to osmo-hnbgw so that it can control a co-located
media gateway to relay the RTP streams between HNB and core network.
Change-Id: Ib9b62e0145184b91c56ce5d8870760bfa49cc5a4
Related: OS#5152
We build with --enable-werror during development and in CI. If the code
is built with a different compiler that throws additional warnings, it
should not stop the build.
This patch also effectively removes dependency on autoconf-archive.
Related: OS#5289
Related: SYS#5789
Change-Id: I7512a4230a5bbba6c67172c2572c98b9ab20c923
Neels Hofmeyr
Oliver Smith
Max
Pau Espin
Philipp Maier