This function schedules the transmission of a RTP message that was
obtained from one osmux batch. It takes the time (in microseconds)
after which the message should be transmitted.
I was using AMR CMR 2 (15 bytes) as the initial tests were done
with the codec variant.
This patch fixes this by using the new generic osmo_amr_bytes
extracted from 3GPP TS 26.101.
This patch splits osmo_rtp_parse in two functions:
osmo_rtp_get_hdr
osmo_rtp_get_payload
So we can validate corrent RTP header to access its fields. Then,
obtain the payload.
This patch adds the osmo-pcap-test infrastructure that allows you
to take packets stored in one pcap file, convert them to msgb and
pass it to some function.
The infrastructure also provides timing reconstruction based on
the pcap file information.
This is useful for easy protocol development, automated testing and
fuzzying of the existing code to validate the code.
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
This patch adds the initial RTP support for libosmo-netif, it's based
on Harald's RTP support available in openBSC.
I have also added a couple of example to show how our new channel
infrastructure interacts with the RTP layer.
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
This patch adds the generic channel infrastructure that allows to
create channel of different types. Each channel has their own
configuration functions.
struct osmo_chan *chan;
chan = osmo_chan_create(tall_example, CHAN_ABIS_IPA_SERVER);
...
/* specific configuration functions per supported channel. */
osmo_chan_abis_ipa_server_set_cb_signalmsg(chan, signal_msg_cb);
osmo_chan_abis_ipa_unit_add(chan, 1801, 0);
/* open channel. */
osmo_chan_open(chan);
The input path requires a callback to be registered. The output path
is handled through:
int osmo_chan_enqueue(struct osmo_chan *c, struct msgb *msg);
The msg->dst must be set (it can be taken from the original message
to route one reply).
This patch also adds A-bis IPA server support. It has been tested with
e1inp_ipa_bsc_test available in libosmo-abis.
This patch adds IPA helper function that can be use on top of stream
sockets.
The current API is just a copy and paste from libosmo-abis, it will
change in follow up patches to improve it.
We provide osmo_dgram_conn_recv(...) which allows you to take control
on the message allocation and receival process. Instead of hiding this
details inside the datagram infrastructure.
Providing more control to clients of this code means more flexibility.
Now they can be used to generate a number of messages from the
user and to measure the RTT of LAPD over datagram messages.
Still, they need to be expanded to take the origin and remote
IPs as argument from the command line, later.
This patch changes the prototype of osmo_dgram_conn_set_read_cb.
Now it takes one callback to a generic struct osmo_dgram_conn
instead of osmo_dgram_server_conn. This is useful in case that
you want to reply to one message using the datagram socket (without
this change is not possible).
Add new functions:
osmo_stream_server_link_get_data
osmo_stream_server_conn_get_data
osmo_stream_client_conn_get_data
To obtain private data from osmo_stream_* handlers.
This patch also introduces missing osmo_stream_server_conn_set_data.
Pablo Neira Ayuso