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Related OS#5753, OS#5751
Change-Id: I61e1fe59166c46595efe8c1f32b8f2607cb6c529
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Somehow gcc doesn't always warn about this rule being broken.
We are breaking the strict aliasing rule here and libosmo-netif
currently does not make use of the '-fno-strict-aliasing' flag.
It's possible that this has also been causing nondeterministic
timestamps in libosmo-netif stream tests every once in a while.
Related: OS#6164, OS#5753
Change-Id: Ibed543cdfcdda8c0256ce7d8818ff96d6d46e9b0
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Related: OS#5753
Change-Id: I87ef4c7023126b783dd79e7ed47be31e1b76f975
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Mainly to make data/packets look (pseudo-)correct in Wireshark.
Also: Add helper for allocating message buffers with extended headroom for IPA.
Change-Id: I962b9edcba65cdc98da00d2f8753dc5acd481502
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In libosmocore Change-ID I1834d90fbcdbfcb05f5b8cfe39bfe9543737ef8f
we have introduced ipa_ccm_id_resp_parse() as a bugfixed replacement
of ipa_ccm_idtag_parse().
The main difference is that the returned "value" parts now have
a correct reported "length", whereas before this commit they all
reported a one-byte too-long "length" for each IE.
Let's use this opportunity to remove the copy+pasted
osmo_ipa_idtag_parse() function from the libosmo-netif codebase.
Change-Id: I4626d247626543e032593bf226b6c233f6678562
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'struct ipaccess_unit' is defined in libosmocore/gsm/ipa.h, we shouldn't
re-define it here. This entire IPA code duplication accross multiple
libraries and programs is a big mess.
Change-Id: If378a088c741df540befb928a5557fc62dea954a
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Change-Id: Ibd81efc1dc61b8c2019d55a8fa6e3bb99b5acb20
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Code extracted from ipa_stream_server.c.
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This functions were before located in channel/abis/ipa_stream_client.c,
but they are generic for IPA units.
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This patch removes osmo_ipa_recv_msg, it performs two syscall invocations
and it's stream generic. Now we use the specific receival function
we want to use (no matter if stream or datagram based) and then we
call osmo_ipa_process_msg to check that the IPA message correct.
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If we're acting as client, we don't have to reply ID_ACK to
one received ID_ACK (otherwise, we enter a loop).
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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.
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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.
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