This allows setting a suitable write-queue max length per client. The
desired value can be different based on a lot of variables, like memory
availabilty, network and CPU load, input/output link state, etc.
Related: SYS#5921
Change-Id: I4e9d5d836ddda215f9e7a075aa8e10d2d3854dd2
This allows the user to change the configuration between either using
a) the classic OsmoPCAP protocol (over TCP with or without TLS)
which is used when you want to talk to an osmo-pcap-server
b) the (new) IPIP encapsulation, which will simply take the IP
packet (without Ethernet or pcap header) and transmit it inside IPIP
to the specified server IP address. This is useful for gettin
real-time streaming into wireshark.
Change-Id: I8056fc163ac2f15adcb964d867dd5e51df4e4710
Modify the osmo_sock_init (code clone to be integrated upstream)
to allow binding to a specific source ip and source port. Allow
the source ip to be configured but allow the kernel to pick a
random port for us.
This is necessary for systems with multiple interfaces where the
default route is not necessarily the right one to connect to the
pcap server.
Change-Id: I84e728b0752213d28f970fcbbfd6565c441ccfeb
Allow to configure multiple servers and connect. Introduce a new VTY
node to allow multiple servers. Add an explicit connect. Do not put
the main connection into the same list but assume it exists.
Change-Id: I9448ad4a005dd7c7eb1c615d03e57d6cb058ae4d
Take out various fields into a new connection class. We will have the
option to connect to multiple servers.
Change-Id: I820176d133fbdb0240a16eb4e1a6d505e5c080c6
Use GNUtls because it is GPL compatible and instead of mbedTLS seems
to have a working non-blocking I/O integration. GNUtls has various
issues that could not be resolved easily:
* Pick spdy as sub protocol
* gmt_time not randomized
* private key loaded to RAM (but not verified)
This is the beginning and not the end. Client support might need more
work with actual tls verification. Maybe more manual x509 cert
verification is needed and maybe client certs don't work at all. I try
to ignore renegotiation as I threw away the key.
Reload x509 creds and keys as they might have changed from one
connection to another.
Change-Id: I9128e14084da1fc2705f858393f98b8133996172
Add more counters and start counting them when reading from the
PCAP library and when trying to write to the socket.
Change-Id: I52d3064a265b402ac849d8578a14f718156c0805
Count certain events that can help to understand what is going on.
This includes OOM, failure to queues.
Change-Id: I4a2dad32afb577822c7181d2813ea5a7e693c704
Allow to inspect UDP messages and check for GPRS, NS, BSSGP
and then filter LLC frames. Parsing the vL datastructure with
the libpcap syntax is a pain. It could be done using BPF but
we do not want to use bpf asm to specify the entire ruleset.
I looked into using libepan/libwireshark but this has memory
issues and is painful too. So let's parse UDP, NS, BSSGP using
the info we already have. I tried a bit of editcap to generate
a bit of broken data. The length check might still be bad.
I used my crash_20100602.pcap file to count the LLC frames we
detect and compare that to wireshark it ended with the right
number.
pcap add-filter gprs
can be used to enable the new filtering option after the OS
has received the packet.
Fixes: ONW#1314
Pau Espin
Vadim Yanitskiy
Harald Welte
Holger Hans Peter Freyther