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sizeof(uint8_t) == 1 and there is no need to create an array
with 16 bytes and then only use the first two of them. This
means the CID range is from 0 to 127 and we should be able
to extend this to 256 by changing the array size to 32. Update
the testcase now that we can have more than 16 calls with Osmux.
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* Test that one can get an id
* That they are assigned predicatble right now
* That returning them will make the number of used ones go down
* That allocating more will fail
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[hfreyther: Link to libcrypto, include header, add uint8_t* cast]
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Require openssl version to be >= 0.9.5 because we rely on the RAND_bytes
return value.
[hfreyther: Add cast to uint8_t*]
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When using multiple interfaces on a system one can now configure
which will be served for the BTS ports and which will be served
for the network. The direct usage of source_addr is now only to
initialize the MGCP receiving port itself.
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We want the port and IPv4 address to be extracted but don't
expect any change in audio codecs.
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The NAT sends an incomplete SDP file for the purpose of informing
the BSC about the remote IP/PORT early. The case of an incomplete
SDP file was not considered. Check if there is a codec and if not
skip it.
TODO: We need to have a better end-point life cycle test.
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We have a lot of legacy that I am afraid to break. We have
everything in place to make a good codec selection (e.g. if
we can avoid transcoding, pick the one with best quality or
the lowest speed). Right now I have a specific case where
from all options I want to pick GSM. Guard the codec compat
check behind the disallow transcoding option to make sure
to not break legacy application.
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The parsing code assumed that there will be a single payload
type and this assumption is clearly wrong. Forward all of the
payload types. The code is still only extracting the first
type from the list. The variable name has been renamed to
reflect this.
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vty_interface_layer3.c:584:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Wformat=]
sizeof(subscr->extension)-1, VTY_NEWLINE);
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List needs to be executed from within the right configuration
node to see if it is available or not. list on the toplevel
will uncoditionally show "smpp" as part of the logging config.
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default-route would only be looked at after there has been
no subscriber in the local database. Depending on the setup
this is not what one wants. This has been discussed at the
OsmoDevCon and there have been hacks in some branches. Let's
introduce a VTY command to select if SMPP should be consulted
first and then fallback to the current behavior.
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Use the same trick as done by the dlopen check to not
have everyone link against the library.
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When libosmo-netif and/or libosmo-abis are installed in distinct
prefixes, the build failed with non-found headers.
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For real networks we need to check if the requested APN string
is allowed and then resolve the GGSN address through DNS. There
are countries with two or three digit MNCs and one could either
try to keep a list of countries that have two/three digits or
just try both of them. I have opted for the later for the ease
of the implementation.
C-Ares doesn't allow to cancel a request so we will need to
have the MMCTX and the Lookup have different lifetimes. We simply
set ->mmctx to NULL in case the MMCTX dies more early.
The selected and verified apn_str will be copied into the out
parameter. In case no static APN/GGSN config is present and the
dynamic mode is enabled a request will be made.
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This is a left-over from the initial system where no PDP
was provided by the system. For now if there is a subscr
attached and no PDP context provisioned. He is not allowed
to have a data connection.
Update the testcase to create the pdp list entry more
early with a wildcard and then change it to a specific
match.
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Copy the hlr-Number into the sgsn_data and use it during
the purgeMS. There is no unit test that looks at the data
we send so I manually verified this by looking at the output.
Below is the output of the test that purges the subscriber.
<000f> gprs_subscriber.c:170 SUBSCR(123456789012345) Sending GSUP, will send: 0c 01 08 21 43 65 87 09 21 43 f5 09 07 91 83 61 26 31 23 f3
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Implement it similar to the msisdn_enc/msisdn_enc_len and
extend the testcase to include it as well.
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Make it possible to set a filename to use for the CDR. By
default no CDR will be generated. Forbid to set the interval
of 0 seconds as this will cause a lot of work. Add a very
basic VTY test.
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In case there is a subscr attached to the MM context and there
is an encoded MSISDN we will attempt to decode it and in case
of an international number prepend a '+'. Assume that the array
size of gsm_mmcc_called->number is as big as ctx->msisdn for the
strncpy.
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The MSISDN should be present for "security" reasons in the first
activation of a PDP context. Take the encoded MSISDN, store it for
future use and then put it into the PDP activation request.
The MM Context contains a field for a decoded MSISDN already. As
we need to forward the data to the GGSN I want to avoid having to
store TON and NPI in another place. Simply store the data in the
encoded form.
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Add roundtrip test for the new QoS IE. It will be consumed in
later commits.
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Extract the new MSISDN IE from the GSUP message and verify that
it is read/written to the message.
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For the BSC we will have the gsm48_hdr and don't need to
find data within SCCP. For legacy reasons we need to
initialize con_type, imsi, reject causes early on and
need to do the same in the filter method.
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This means we need to require a talloc context and
simply operate on the list. I had considered creating
a structure to hold the list head but I didn't find
any other members so omitted it for now.
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Move the filter methods to the filter module. This is
still only usable for the NAT and the _dt/_cr filter
routines need to move back to the bsc_nat in the long
run.
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For customer requirements we want to be able to do
filtering on the BSC as well. The same messages need
to be scanned and the same access-lists will be looked
at. In the future we might even split traffic based
on the IMSI. Begin with moving the code to a new top
level directory and then renaming and removing the
nat dependency.
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The idea of "subscriber_get_channel" was that different
requests would be coordinated. At the same time we have
seen that the "queue" can get stuck at both 31C3 and the
rhizomatica installations.
Voice calls and SMS do not need coordination. We should
be able to send SMS on a voice channel and switch the MS
from a SDCCH to a TCH in case we establish a voice call.
The SMS code itself needs to coordinate to obey the limit
of one SMS per direction but this should be enforced in
the sms layer and not on the subscriber.
Modify the code to have a simple paging coordination. The
subscriber code will schedule the paging and register who
would like to know about success/failure.
This allowed to greatly simplify the paging response
handling for the transaction code (and in fact we could
move the transaction list into the subscriber structure
now). The code gained to support to cancel the notification
of a request (but not the paging itself yet).
TODO: Cancel paging request in case no one cares about it
anymore.
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In test_rtp_seq_state an assignment is accidently done within an
assertion.
This commit changes that into a comparison as it was intended.
Fixes: Coverity CID 1295457, 1295458
Sponsored-by: On-Waves ehf
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Fixes warnings like:
warning: format '%d' expects argument of type 'int', but argument 3 has type 'long int' [-Wformat]
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Currently some VTY command do neither check the length of the source
string before calling strncpy nor ensure NUL-termination afterwards.
This can to destination string buffers whose contents are not
NUL-teminated.
This commit adds checks and corresponding warnings to the VTY
commands 'subscriber TYPE ID name .NAME" and "subscriber TYPE ID
extension EXTENSION".
Fixes: Coverity CID 1206570, 1206569
Sponsored-by: On-Waves ehf
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When handling an incoming GSUP cancellation request, the cancel_type
if effectively ignored, such that is always handled as
GPRS_GSUP_CANCEL_TYPE_UPDATE and never as WITHDRAW.
This commit fixes the expression used to set the variable
is_update_procedure.
Fixes: Coverity CID 1267739
Sponsored-by: On-Waves ehf
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We want to have a program add entries to the allow list
this can be done using:
$ bsc_control.py -d localhost -p 4250 -s net.0.add.allow.access-list.NAME "^IMSI$"
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We need to use different LAC/CI towards the core network.
It is a bit problematic as LAC/CI is a per BTS attribute
so this feature only works if a BSC manages everything in
the same LAC.
Related: SYS#1398
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Create a one stop command to give a statement for the
entire network. This can be used to check the policy
and the state of the entire network.
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This can be used to query how many bts are configured to
check if all of them are locked or not.
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For most configurations we don't address multiple GGSNs but
only want to enforce a list of APNs. In the future we might
add a special global GGSN context but not right now.
Fixes: SYS#593
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This reverts commit f81cacc6814dde73f203d125b0065d1451a98317.
Since the PURGE MS retry mechanism had been removed, this feature
is not used anymore. It just makes the code more complex.
Conflicts:
openbsc/include/openbsc/gprs_sgsn.h
openbsc/src/gprs/gprs_subscriber.c
openbsc/tests/sgsn/sgsn_test.c
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Currently the APN IE in the Activate PDP Contex Request and the PDP
data that is stored with the subscriber is ignored completely.
This commit adds the sgsn_mm_ctx_find_ggsn_ctx that checks the APN IE
against the subscriber's PDP data entries if both are present. If
there is no match, the request is rejected.
If an APN IE has not been included but PDP data entries are present,
the function checks all of these entries against the static 'apn'
configuration to find a suitable entry.
If an APN has not been determined so far and any APN is allowed, the
configuration is checked with an empty APN string, to allow for
default configurations based on the IMSI prefix only.
If nothing of this succeeded but the request wasn't rejected either,
and there is no 'apn' configuration at all or if any APN is allowed
but a default configuration ist not present, the GGSN with id 0 is
used (if present).
Otherwise the request is rejected ('missing APN').
Ticket: OW#1334
Sponsored-by: On-Waves ehf
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This commit adds the exported functions apn_ctx_find_alloc,
apn_ctx_free, apn_ctx_by_name, and apn_ctx_match to manage and
retrieve APN to GGSN mappings.
The following VTY commands are added to 'config-sgsn':
- apn APN ggsn <0-255>
- apn APN imsi-prefix PREFIX ggsn <0-255>
which maps an APN gateway string to an SGSN id. The SGSN must be
configured in advance. When matching an APN string, entries with a
leading '*' are used for suffix matching, otherwise an exact match is
done. When a prefix is given, it is matched against the IMSI. If
several entries match, a longer matching IMSI prefix has precedence.
If there are several matching entries with the same PREFIX, the entry
with longest matching APN is returned.
Ticket: OW#1334
Sponsored-by: On-Waves ehf
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Currently the PDP info that is transmitted via GSUP is just parsed
and then discarded.
This commit adds a new data structure sgsn_subscriber_pdp_data and
maintains a list of those in sgsn_subscriber_data. The PDP data is
copied from an incoming GSUP UpdateLocationResult message. If that
message contains the PDPInfoComplete flag, the list is cleared before
new entries are added. The 'show subscriber cache' output now also
shows the PDP data entries.
Note that the InsertSubscriberData message is still not supported.
[hfreyther: Added talloc_free in gprs_subscr_pdp_data_clear]
Sponsored-by: On-Waves ehf
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Create a control command to read and modify the gprs mode. Use
the get_string_value to indicate if the value was found or not.
This is useful for the ctrl interface where I didn't want to
replicate "none", "gprs" and "egprs". Share code to verify that
a BTS supports the mode.
Related: SYS#591
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30f1f376383df3ae8d85e96542bf14d174c25d89 introduced new channel
combinations but had a copy and paste error in the description.
The jenkins system didn't run the external tests so this issue
and others were not noticed until now.
Fix the copy and paste and update the test result.
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