| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
Add libiu to contain the parts used by both Iu-CS (in osmo-cscn) and Iu-PS (in
gprs) into libiu. It's rather thin and may make sense to move to osmo-iuh
altogether, eventually.
iu.c is half moved to libiu/, and half to osmo-cscn/iu_cs.c.
|
|
|
|
|
|
Rename conn_ctx_list -> ue_conn_ctx_list.
Indicate Iu-CS 'siblings' for a couple of functions.
Tweak/add comments.
|
|
Introduce enum interface_type and gsm_subscriber_connection.via_iface to
distinguish between A-interface and Iu-CS-interface connections.
Add gsm_subscriber_connection.iu.link_id and iu.conn_id.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
It was a uint16_t*, but is passed as a uint16_t, and never used anyway, yet.
|
|
|
|
this means we no longer try to link to hard-coded files outside of the
openbsc.git repository.
|
|
|
|
This is the entry point for GMM from Gb. We will create a new one
for Iu, so let's be explicit rather than implicit.
|
|
Let's explicitly mark those sgsn_mm_ctx members that apply for Gb mode
and (upcoming) Iu mode, respectively.
|
|
Replace the global sub_connections llist with gsm_network.subscr_conns.
Initialize and apply where applicable. Remove bsc_api_sub_connections().
|
|
Make the SMPP bind address configurable (used to be harcoded as "0.0.0.0").
Add VTY command
smpp
local-tcp A.B.C.D <1-65535>
while keeping the old command 'local-tcp-port <1-65535>'. Both the old and the
new command immediately change the SMPP listening address and port.
Add a LOGL_NOTICE log when the SMPP listening address and/or port change.
However, to be useful, this patch has to go somewhat further: refactor the
initialization procedure, because it was impossible to run the VTY commands
without an already established connection.
The SMPP initialization procedure was weird. It would first open a connection
on the default port, and a subsequent VTY port reconfiguration while reading
the config file would try to re-establish a connection on a different port. If
that failed, smpp would switch back to the default port instead of failing the
program launch as the user would expect. If anything else ran on port 2775,
SMPP would thus refuse to launch despite the config file having a different
port: the first bind would always happen on 0.0.0.0:2775. Change that.
In the VTY commands, merely store address and port if no fd is established yet.
Introduce several SMPP initialization stages:
* allocate struct and initialize pointers,
* then read config file without immediately starting to listen,
* and once the main program is ready, start listening.
After that, the VTY command behaves as before: try to re-establish the old
connection if the newly supplied address and port don't work out. I'm not
actually sure why this switch-back behavior is needed, but fair enough.
In detail, replace the function
smpp_smsc_init()
with the various steps
smpp_smsc_alloc_init() -- prepare struct for VTY commands
smpp_smsc_conf() -- set addr an port only, for reading the config file
smpp_smsc_start() -- establish a first connection, for main()
smpp_smsc_restart() -- switch running connection, for telnet VTY
smpp_smsc_stop() -- tear down connection, used by _start() twice
And replace
smpp_openbsc_init()
smpp_openbsc_set_net()
with
smpp_openbsc_alloc_init()
smpp_openbsc_start()
I'd have picked function names like "_bind"/"_unbind", but in the SMPP protocol
there is also a bind/unbind process, so instead I chose the names "_start",
"_restart" and "_stop".
The smsc struct used to be talloc'd outside of smpp_smsc_init(). Since the smsc
code internally uses talloc anyway and employs the smsc struct as talloc
context, I decided to enforce talloc allocation within smpp_smsc_alloc_init().
Be stricter about osmo_signal_register_handler() return codes.
|
|
Add ctrl_vty_init() calls and feed the ctrl_vty_get_bind_addr() return value to
ctrl_interface_setup() in the following programs:
osmo-bsc
osmo-bsc_nat
osmo-nitb
osmo-sgsn
For osmo-sgsn, move the control interface setup invocation below the config
parsing, so that the ctrl_vty_get_bind_addr() can return the configured
address.
|
|
The old -m option without argument is still available and marked deprecated,
to not make users' lives more difficult than necessary.
|
|
If an MM context cannot be found based on BBSGP info and a RA UPDATE
REQUEST is received, try to find an MM context with an P-TMSI from
which the TLLI could have been derived. This also checks, whether the
routing area matches.
This is similar to the old behaviour removed by the commits
"sgsn: Only look at TLLIs in sgsn_mm_ctx_by_tlli" and
"sgsn: Remove tlli_foreign2local", except that this will only
be done for RA UPDATE REQUESTs now.
Sponsored-by: On-Waves ehf
|
|
The function is moved to gprs_utils.c, renamed, and made non-static
to be usable in other modules, too.
Sponsored-by: On-Waves ehf
|
|
At Rhizomatica we see that some GSM 04.08 messages are leaked and
have no other indication if that is Call Control, SMS or something
else.
|
|
When a MNCC handler wants to issue the MNCC_BRIDGE primitive
overt the MNCC interface, this was not possible so far via the
MNCC socket. This primitive was so far only available from the
internal MNCC handler, more or less by accident I suppose. The reason
for this is in the way the array of two call references had been passed
into mncc_tx_to_cc().
|
|
|
|
Because the sender is known, one unique TEI per tunnel suffices to map the TEIs
that the peers are sending to gtphub, instead of previously 4 (SGSN<->GGSN
interaction on User and Ctrl plane, where each had an own unique TEI).
Also, previously, a tunnel's endpoints should also have been checked against
each other for TEI reuse, not only against the endpoints of other tunnels. This
simplification fixes that problem for free.
Thus simplify TEI reuse detection and improve VTY show readability and
debugging.
Adjust log and VTY output for tunnels.
Adjust tests accordingly.
Suggested-by: Holger Hans Peter Freyther <holger@moiji-mobile.com>
Sponsored-by: On-Waves ehi
|
|
Count bytes and packets per peer port, as well es per tunnel enpoint, which
adds two more levels of detail.
Sponsored-by: On-Waves ehi
|
|
We now store the pre-printed lchan name in lchan->name to avoid having
to call sprintf every time there is a debug statement somewhere,
particularly as most of those debug statements are going to be inactive
most of the time.
|
|
If an SGSN is behind NAT, we cannot rely on the default ports. Specifically,
if a GGSN sends a message, the forwarding to the SGSN should go to whichever
port the SGSN last sent from (whether sequence nr is known or not).
Add sgsn_use_sender config and VTY command, and store the sender instead
of the GSN Address IE and default port if set.
Sponsored-by: On-Waves ehi
|
|
Sponsored-by: On-Waves ehi
|
|
If a GSN indicates that it has reset, tear down each known tunnel for that GSN
individually (don't send the GSNs on the other side a different restart
counter, because they represent more than just this GSN).
Sponsored-by: On-Waves ehi
|
|
During resolution of the header TEI, also return the tunnel struct that
resolved the TEI, so the Delete PDP Ctx code does not need to look it up
again.
Upon Delete PDP Ctx Request, remember the IEs and that a request was made.
Upon Delete PDP Ctx Response, find the pending delete and remove the
corresponding tunnel, iff the response indicates success.
Add a context deletion to regression tests, rename the test appropriately.
Sponsored-by: On-Waves ehi
|
|
Sponsored-by: On-Waves ehi
|
|
This is a mostly cosmetic change. Instead of separate buffer handling
functions, reduce some code duplication by using a side_idx just like the
plane_idx, with arrays.
Sponsored-by: On-Waves ehi
|
|
There's no need to keep two separate number pools when both can be fed
from the same pool. User and Ctrl plane TEIs can technically overlap without
colliding, but it doesn't hurt if they don't overlap, either.
Sponsored-by: On-Waves ehi
|
|
Simplify looping over sides and planes. I'm tired of typing the same for
loops all the time.
Sponsored-by: On-Waves ehi
|
|
Force passing a restart counter, by adding such arg to gtphub_start() (test
suite is not affected by this).
In gtphub_main.c, add -r,--restart-file <path> and next_restart_count() to
maintain the counter file. While at it, tweak the cmdline help to unify the
formatting (mostly commas and a missing line break).
Send gtphub's own restart counter. So far, the sender's restart counter was
copied through, which would break as soon as more than one GSN would talk to
the same peer with differing restart counters.
Also fix the in-mem restart counter data type (one octet, not two).
Sponsored-by: On-Waves ehi
|
|
So far, gtphub worked perfectly by only tracking single TEIs ... for probably
most uses. But a Ctrl plane tunnel may have expired despite a still active
corresponding User plane tunnel. The User plane would continue to work
indefinitely, but if any Ctrl messages followed after more than six hours of
Ctrl silence, they would have been dropped due to an expired TEI mapping.
We want to
- combine expiry of a user TEI with its ctrl TEI. (done in this patch)
- upon delete PDP context, remove both user and ctrl TEI mappings. (future)
- when a peer indicates a restart counter bump, invalidate its tunnels.
(future)
To facilitate these, track tunnels, complete with both SGSN's and GGSN's
address, original and replaced TEIs, all for both user and ctrl plane, in a
single struct. A single expiry entry handles the entire tunnel, instead of
previously four separate expiries for each endpoint identifier.
Add the concept of a "side", being either GGSN or SGSN, to index tunnel
endpoint structs, and so on.
Track the originating side in the gtp_packet_desc.
Add header_tei_rx: set_tei() overwrites header_tei, but the originally received
header TEI is still needed to match a Create PDP Context Response up with its
Request (and for logging).
Adjust the test suite to expect tunnel listing strings instead of TEI mappings,
with a bonus of making it a lot easier to grok, and including the IP addresses.
Add regression test for refreshing tunnel expiry upon use.
Note: the current implementation is as slow as can possibly be, iterating all
the tunnels all the time. Optimizations are kept for a future commit, on
purpose.
BTW, the sequence number mapping/unmapping structures remain unchanged.
Sponsored-by: On-Waves ehi
|
|
The expiry queues are already used for resolved GGSN addresses, and will
soon enlist tunnel structs. Hence the naming should be more general.
Sponsored-by: On-Waves ehi
|
|
Sponsored-by: On-Waves ehi
|
|
Sponsored-by: On-Waves ehi
|
|
Start adding VTY commands to show rate counters / statistics / cache dumps.
Sponsored-by: On-Waves ehi
|
|
Sponsored-by: On-Waves ehi
|
|
Clean up functionality is added for the test suite only, to be able to clean
out all allocations and test against memory leaks.
So far, it was sufficient to expire everything to free a gtphub. In preparation
for the upcoming rate counters, which will need to be freed explicitly, add
gtphub functions to clean up everything.
As added bonus, also close the sockets explicitly -- not really needed upon
program exit, neither by the test suite, but *if* we have a cleanup function,
it should clean up everything properly.
Closing the sockets is however kept separate, for the test suite.
gtphub_start() and gtphub_stop() are for normal use (published in gtphub.h),
and gtphub_init() and gtphub_free() are for the test suite, without sockets.
(gtphub_stop() will probably never be called by anyone, but its existence
completes the picture.)
In gtphub_test.c, have a function to clean up the testing gtphub struct. First,
expire everything by timeout, assert emptiness, then call the cleanup function.
Call from each test in the end.
Sponsored-by: On-Waves ehi
|
|
gtphub_ext.c's initial purpose was to wrap a specific function. The file
then turned into everything related to DNS, which fits pretty well. Rename
to gtphub_ares.c.
Tweak the header comment to reflect the new file name.
Sponsored-by: On-Waves ehi
|
|
Implement min/max bounds for nr_pool, adjust nr_pool_init() and current tests,
and create unit tests for nr_map wrapping.
Sequence numbers range from 0 to 65535, while TEIs range from 1 to 0xffffffff.
Both cause problems when the nr_pool surpasses the range: seq exit their valid
range, causing unmappings to fail, and a TEI would be mapped as zero (invalid).
Add a comment about TEI wrapping, and lose the comment about random TEIs (not
really important).
Sponsored-by: On-Waves ehi
|
|
Use unsigned int for nr_map, just large enough to fit the TEI space.
Adjust log output formats and casts accordingly.
Fixes: TEIs are uint32_t, but the nr_map so far used int. This would cause TEIs
from 0x80000000 on to be handled and printed as a negative value.
Sponsored-by: On-Waves ehi
|
|
The del_cb is now also used for ares (GGSN resolution) timeouts, and expiry is
anyway separated from nr_map, so this comment is void.
Sponsored-by: On-Waves ehi
|
