Harald Welte
9af6ddfcec
License change: We are now AGPLv3+ instead of GPLv2+
...
The reason for this is quite simple: We want to make sure anyone
running a customized version of OpenBSC to operate a network will
have to release all custom modifiations to the source code.
2011-01-01 15:39:34 +01:00
732d9c19bf
Merge branch 'zecke/number-rewrite'
2010-10-27 12:41:19 +02:00
54f5352e07
nat: Close SCCP connections when the USSD Provider is closed.
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Send a RLSD down to the BSC in case the USSD Provider is gone. It
is not sending a Clear Command and ut depends if the BS+ will
like this kind of behavior. At least the data on the NAT will
be freed soon afterwards due the RLC message.
2010-10-27 11:01:55 +02:00
73bbf89245
nat: Implement rewriting, have a very basic test for that feature
2010-10-27 10:40:44 +02:00
a914daf174
nat: Add hook for rewriting a setup message
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Create a new function, hand the data to this function, take back
a possible modified msgb and invalidate parsed at this point.
2010-10-27 10:40:44 +02:00
76424392e0
nat: Add vty option for number rewriting
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Parse a msg file in case we do have a list.
2010-10-27 10:40:43 +02:00
c16c2dc5d3
nat: Implement accepting a USSD Provider connection, do authentication
2010-10-25 21:06:03 +02:00
e393f273e7
nat: Keep a ussd token in the config
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We will have the USSD provider connecting to us and we
will use the IPA protocol, including the auth mechanism.
2010-10-25 21:04:46 +02:00
c1578bc747
nat: Add an option to set the query string to match
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Allow the query string to be set. The ussd matching code
will check for this string and then forward it to the bypass.
2010-10-25 21:04:46 +02:00
c1cac1e31a
nat: Make the imsi checking function public.
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We will use this method in the USSD module to check if the
IMSI should be handled for USSD queries.
2010-10-25 21:04:45 +02:00
d1effd835f
nat: Provide a USSD access list to check for which to play HLR.
2010-10-25 21:04:45 +02:00
17870cf533
nat: Create a USSD module to filter out USSDs...
2010-10-25 21:04:45 +02:00
74dc303134
nat: Introduce a new connection type for Supplementary Services
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If we have a CM Service Request we will look into the message
to see if it is a Supplementary Service Activation.
2010-10-25 21:04:44 +02:00
a3967579f8
nat: Move the DTAP unpacking into a new method
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DTAP unpacking will be used by the USSD checking code
2010-10-21 12:23:27 +02:00
749497eeb3
nat: Copy the IMSI, then free it or move the context to the connection
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Extract the IMSI from the first message as well and safe it
in the connection structure. The problem is that we do not
have this structure at this point, so we will allocate the
imsi as child of the bsc_connection and then move/steal it.
2010-10-21 12:22:50 +02:00
7e8da1379e
nat: Add a method to add a proper message to the queue.
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This will be used by the USSD module to forward the data
without creating another copy of the data.
2010-10-19 16:40:34 +02:00
3d38742d1c
nat: Find a connection by the real ref
2010-10-19 16:40:17 +02:00
69cfa179ef
nat: Make the write_queue write callback a public function
2010-10-13 23:56:01 +02:00
4d44fc56e7
nat: Make the queue routine work on any write_queue
2010-10-13 23:55:52 +02:00
19c530c5e7
ipaccess: Put our extensions to the protocol into the same enum
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Rename NAT_IPAC_PROTO_MGCP to IPAC_PROTO_MGCP and place it in
the enum. We need to be prepared to change this number if IPA
is ever going to use it for something else.
2010-10-13 23:55:32 +02:00
0bd60f3317
nat: Allow a BSC to have multiple LACs
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Make it possible that one BSC is serving multiple
cells. Introduce a list of lacs, add functions to
manipulate the lists. The current test cases for
paging by lac continue to work.
2010-10-08 22:21:46 +08:00
463dc62ae4
nat: Provide statistics about amount of different messages.
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Provide simple statistics on how many LUs, Paging Responses
etc. we are seeing in the network.
2010-10-03 19:41:42 +08:00
ee8849649b
nat: Keep track of how many connections we reject
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Keep track of how many connections we reject due the IMSI
filter itself or due not being able to parse the message.
2010-09-25 17:58:22 +08:00
2f1a984d4f
nat: Add statistics to the access-list in the NAT
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Count how many times we match a BSC or NAT deny. This will
give us the number of how often something should be filtered.
2010-09-25 16:15:23 +08:00
249d69a26c
nat: Use the write_queue inside the CFG.
2010-09-20 02:51:29 +08:00
74e0a1b91c
nat: Start inspecting every message coming from the BSC for the IMSI
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Return early in case the IMSI was already checked, if not we need
to look at the connection and check if the message could contain a
imsi we want/need to filter.
2010-09-15 18:58:36 +08:00
85902a4d4a
nat: We have 1 to 31 available to the BSC.
2010-09-01 09:31:46 +08:00
f7c86c5b4d
nat: Replace the MGCP Endpoint if that is required
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Add code to replace the Endpoint number for the mgcp.
2010-08-30 13:44:32 +08:00
45fd07dc33
nat: Attempt to assign the BSC Timeslot based on a free list
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Do attempt to not reassign an endpoint immediately but go
to the next free one.
2010-08-29 16:35:26 +08:00
5b2726e6b5
nat: Keep the state (CRCX,MDCX,DLCX) of the operation..
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This will allow to have additional debug information and to
use the state inside the forwarding code.
2010-08-06 09:07:07 +08:00
4634013cde
mgcp: Make the CI uint32_t all the way to avoid mismatch
2010-08-06 08:29:37 +08:00
c2b31ed9cd
nat: Fix compilation with nat not being enabled.
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common_vty.c was including bsc_nat.h which tried to
get the sccp/sccp_types.h which is not required to be
installed. Move all structs using/embedding SCCP structures
into the bsc_nat_sccp.h and include. This should fix
the compilation.
2010-07-31 05:20:31 +08:00
6b7710739a
nat: Rename ip-tos to ip-dscp and provide an alias...
2010-07-27 19:21:53 +08:00
dbd16fe59a
nat: u_int8_t -> uint8_t
2010-07-23 19:08:55 +08:00
d1d45b3b89
nat: Remove the first_contact variable.
2010-07-05 14:47:15 +08:00
20ee312d5c
nat: Create a method to determine if any MSC is connected.
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In the future we will have multiple MSC connections so we will
need to figure if any of them is active.
2010-07-05 14:39:44 +08:00
3a77e61033
nat: Keep track of the MSC handling the connection.
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In the future we might have multiple MSCs connected
and need to dispatch it to the right one.
2010-07-05 13:33:18 +08:00
8330c1c386
nat: Count the number of dropped SCCP and MGCP calls as well.
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Count the number of dropped calls and lost SCCP connections
due the loss of a connection to the BSC...
2010-06-17 18:29:42 +08:00
b2c38ebb1f
nat: Switch per BSC counters to the rate ctr.
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This is switching the simple statistics to the rate counter
and is updating all users...
2010-06-17 18:18:12 +08:00
d77c8171aa
nat: Allow to specify multiple entries in the access-list...
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Inside the access-list we have a list of entries that have
either one allow or one deny rule... we do not allow to remove
a single rule but one has to remove the whole list, in that case
talloc will handle cleaning all entries.
Right now the matching is O(n*m) as we traverse the list
(multiple times) and run the regexp multiple times. One
way to make it faster would be to concat all regexps into
one.
2010-06-15 20:24:21 +08:00
29c67039fe
nat: Shorten the access-list struct and method names (still way too long)
2010-06-15 20:24:21 +08:00
e4900a074a
[nat] Implement the removal of an access-list.
2010-06-15 20:24:21 +08:00
8affef5059
[nat] Introduce the concept of access-list
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One can set one access-list to one BSC and one
access-list to one NAT. The matching of IMSIs
remains the same for now, also applying the
white/blacklist. Access lists can not be deleted
for now and no perf opt is done (e.g. one could
cache the result of the last lookup in the bsc
struct).
2010-06-15 20:24:21 +08:00
078321aaae
[nat] Add ip-tos option to the nat.
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This is applied to all incoming BSC connections.
2010-06-15 20:24:21 +08:00
b71c23bb0a
[nat] Make the refusal more complicated to support more MSCs
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We will need to confirm the connection, then we can send the
GSM48 message, then we need to close the connection... the
embedding in the refusal method was way too easy..
2010-06-15 20:24:20 +08:00
fa20c94456
[nat] Make create_sccp_src_ref return the SCCP Connection.
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Right now it was not possible to just find a connection, by returning
the connection that is created we will have direct access to it. It
will be used by the local connection handling.
2010-06-15 20:24:20 +08:00
e1fb5670cd
[nat] Remove parameter that is never accessed directly
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The msgb needs to be around when we access the parsed structure
but that needs to be guranteed by the caller handing out the parsed
structure.
2010-06-15 20:24:20 +08:00
c58da4b374
[nat] Add the notion of a "local" connection.
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A local connection is only between the MUX and the real BSC. We will
not forward anything to the MSC. This will be needed for the IMSI
filtering as sending a CREF is not liked by every BSC...
2010-06-15 20:24:20 +08:00
234d31218f
[nat] Use and print the connection type of a SCCP connection.
2010-06-15 20:24:20 +08:00
19c0a84fb8
[nat] Set the connection type/reason as out parameter
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We are analyzing each CR message and it is nice to know the
reason these connections were created. Change the nat method.
2010-06-15 20:24:20 +08:00
Harald Welte
Holger Hans Peter Freyther