Commit Graph

93 Commits

Author SHA1 Message Date
Holger Hans Peter Freyther d34adb2f9f nat: Fix authentication by-pass using shorter tokens
The token was compared with the configured one but only up to a
user supplied length. Compare the token sizes and then use memcmp
for the actual comparison to make sure to compare the right ammount
of characters.

There is no unit-test but there should be one.
2013-04-02 10:10:21 +02:00
Holger Hans Peter Freyther 036b25fb7f nat: Fail if the control interface can not be initialized 2013-01-15 13:48:18 +01:00
Holger Hans Peter Freyther aa191adce6 nat: Send a CM Service Reject for NAT_CON_TYPE_SSA as well
For USSD we remember that it is a supplementary service but this
means we sent no CM Service Reject down to the subscriber. Treat
NAT_CON_TYPE_CM_SERV_REQ and NAT_CON_TYPE_SSA the same and send
a cm service reject.
2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther 1f8276e588 nat: Introduce a global IMSI barr list using red-black trees 2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther 0434faedc9 nat: Simplify the code and call auth_imsi from the main method
Do the auth check in bsc_nat_filter_sccp_cr, remove the cause from
the signature again. For the bsc_nat_filter_dt restructure the flow
but leave the auth inside the id response message.

Return 1 when the IMSI has been extracted as indicator for running
the auth check. 1 has not been used before and is safe to be used
as this indicator.
2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther 184950e298 nat: Get the cause into the imsi_auth method in preparation
For the new barr feature get the cause struct down to the imsi_auth
code so we can add the blacklist there.
2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther bdf764a025 nat: Allow the filter to select the reject cause
In preparation for another kind of black-list allow the filter code
to decide how the connection should be rejected. Introduce a new struct
that will carry the reject causes for certain operations.
2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther adc2e87372 nat: Move the IMSI/TMSI filtering to a new and dedicated file
Move all routines related to filtering to a separate file.
2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther 6fbd864a65 nat: Fix a typo in the log message for out of memory 2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther 6ecb3cb599 nat: Extract the message re-writing from the utils to a dedicated file
Move the code around to make it more clear what the routines should do.
2013-01-07 15:02:34 +01:00
Holger Hans Peter Freyther 98da544992 nat: Move the ctrl handling code into a separate file
Move to the control command handling out of the main file into
a dedicated module. There are still some calls embedded into the
main code but it will be moved soon.
2012-11-12 10:49:10 +01:00
Holger Hans Peter Freyther 3dfe8a1705 nat: sizeof char * != sizeof char[], make the code work on 64bit systems
The test cases were failing on 64bit systems because the sizeof
code operated on the pointer size which is 8 and longer than the
size that was intended to be used for comparing it.
2012-11-07 13:35:14 +01:00
Holger Hans Peter Freyther e2f34d588c nat: Inject a a=fmtp:%d to force the right AMR code
This assumes that AMR is used and/or the mode-set is ignored for other
codecs by the remote end.
2012-11-07 13:34:43 +01:00
Holger Hans Peter Freyther 7456891439 mgcp: Fix the log message. This is inside the MDCX printing routine 2012-10-30 11:22:21 +01:00
Holger Hans Peter Freyther cb3c2c95bf nat: Make MGCP helper routine static as it is internal to the MGCP code 2012-10-29 19:41:51 +01:00
Holger Hans Peter Freyther 07fc097fc4 nat: Document the high level goal of the MGCP/NAT routines
Provide some high level documentation that might help to understand
what this code is supposed to be doing.
2012-10-29 19:41:37 +01:00
Daniel Willmann 6dc6910b79 nat: Change the ctrl command path
The commands net.<netid>.bsc.<bscid>.* are now forwarded to the
appropriate osmo-bsc. <netid> for now is just 0. <bscid> is not the LAC
anymore (since that could be ambiguous), but instead the number as
configured in bsc-nat.cfg
2012-09-11 16:20:46 +02:00
Daniel Willmann 5e95f45af0 ctrl: Improve error handling if controlif setup fails 2012-09-11 15:20:55 +02:00
Daniel Willmann d79da3baac nat: Add support for traps to the nat 2012-09-11 13:09:03 +02:00
Daniel Willmann 6fc4a98fc5 libctrl: Change controlif_setup so it returns the ctrl handle
nat: Catch up with controlif_setup API change
We now save a control handle reference in the nat
osmo-bsc: Catch up with controlif_setup API change
We now save a control handle reference in the gsm network
2012-09-11 12:52:23 +02:00
Harald Welte 570ce24deb VTY: improve VTY prompt and make sure exit/end works everywhere
Some nodes below 'config' didn't have ournode_exit / ournode_end,
and thus were not able to properly perform this function.  exit should
always only go back one level, while end drops us back to ENABLE_NODE.

The prompt now represents the nesting level, and there's one consistent
space after the final prompt character (typically #).
2012-08-17 13:16:10 +02:00
Holger Hans Peter Freyther 1a6b83c919 nat: Document all parameters of the VTY commands 2012-07-28 16:14:04 +02:00
Holger Hans Peter Freyther 7d60bdb2c2 nat: Add VTY command for the TP-DA rewriting. 2012-01-18 20:40:01 +01:00
Holger Hans Peter Freyther 2718845967 nat: Fix the no sms-clear-tp-srr command 2012-01-18 20:34:08 +01:00
Holger Hans Peter Freyther 47b144b002 nat: Internationalize the TP-DA if it starts with a 00
Internationalize the number like we do it for Call Control. Update
the test result to match this new behavior.
2012-01-18 20:15:29 +01:00
Holger Hans Peter Freyther 8e60f629e2 nat: Prepare to rewrite the TP-DA number of a SMS submit.
Introduce number rewriting of SMS-SUBMIT. Introduce a new list,
move code around to help with finding a new number, somehow the
number encoding for TP-DA is borked, 03.40 references 04.11 but
the length appears to be strlen(number) without taken the type
field into account.
2012-01-18 20:14:58 +01:00
Holger Hans Peter Freyther 9592c45e34 mgcp: Provide documentation for the method, check sscanf return 2012-01-17 15:58:48 +01:00
Holger Hans Peter Freyther 0977e0c4b8 nat: Add the line break after the '. 2012-01-11 11:23:25 +01:00
Holger Hans Peter Freyther 68368dd99a nat: Implement clearing of TP-SRR flags from TPDUs
Match IMSI and destination address against a set of entries, if it
is matching the header will be modified and no sender report will be
requested. Change the test case to request the sender report and then
verify that this bit is reset to 0.
2012-01-10 22:45:24 +01:00
Holger Hans Peter Freyther 951f34b885 nat: Use the link_id from the original message in the new DTAP message
SMS went from SAPI=3 to SAPI=0 and nobody notices on the NAT->MSC direction.
2012-01-10 22:29:35 +01:00
Holger Hans Peter Freyther c2c0ea700b nat: Compare the DTAP L3 size with the size of the msgb - dtap header 2012-01-10 22:27:43 +01:00
Holger Hans Peter Freyther 8c36fdb1d8 nat: Fix comment and mask for looking at TP-MTI 2012-01-10 14:33:27 +01:00
Holger Hans Peter Freyther 55466197f0 nat: SMS rewrite matching, empty list means match everything 2012-01-10 14:22:55 +01:00
Holger Hans Peter Freyther dec7387a22 nat: SMS comment updates 2012-01-10 14:13:43 +01:00
Holger Hans Peter Freyther 998a98185f nat: Move SMS creation into a new method, no functional change 2012-01-10 13:44:05 +01:00
Holger Hans Peter Freyther 5d2a30a83c nat: Access data_ptr after we have checked the length 2012-01-10 13:04:40 +01:00
Holger Hans Peter Freyther c5df08b388 nat: Move the finding of the number to a new method 2012-01-10 12:05:52 +01:00
Holger Hans Peter Freyther 37a63ca34a misc: Linking fixes for Ubuntu 11.10 Compiler
Ubuntu 11.10 has changed some linker/compiler flags. Some fixes for this
can be seen here[1]. In general the to be linked libs need to be moved into
the LDADD section of parameters. This is with the old BFD linker (not gold).

This is likely to end in some ping-pong with other versions of the linker.

[1] https://bugs.launchpad.net/ubuntu/+source/nis/+bug/771034

Errors:
/usr/bin/ld.bfd.real: bsc_hack.o: undefined reference to symbol 'osmo_init_ignore_signals'
/usr/bin/ld.bfd.real: note: 'osmo_init_ignore_signals' is defined in DSO /home/ich/install/openbsc/lib/libosmocore.so so try adding it to the linker command line
/home/ich/install/openbsc/lib/libosmocore.so: could not read symbols: Invalid operation

...
../../src/libbsc/libbsc.a(rest_octets.o):/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:381: more undefined references to `bitvec_set_bit' follow
../../src/libbsc/libbsc.a(rest_octets.o): In function `rest_octets_si13':
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:382: undefined reference to `bitvec_set_uint'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:383: undefined reference to `bitvec_set_uint'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:385: undefined reference to `bitvec_set_bit'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:402: undefined reference to `bitvec_set_bit'
/home/ich/source/gsm/openbsc/openbsc/src/libbsc/rest_octets.c:403: undefined reference to `bitvec_set_uint'
2011-10-16 17:08:51 +02:00
Daniel Willmann 5763093285 libctrl: Mark the cmd set/get/verify functions static 2011-08-22 23:45:56 +02:00
Daniel Willmann e54db171ee nat: Fix error in get_next_free_bsc_id
The new function now mimcis the behaviour of
assign_src_local_reference from bsc_sccp.c
2011-08-22 23:45:56 +02:00
Holger Hans Peter Freyther 06c9da6c22 misc: Move the bsc_parse_reg to libcommom and name it gsm_parse_reg
Move the regexp parsing code from the NAT to libcommon as it will
be used by the NAT and BSC code. This also adds the #include <regex.h>
include to gsm_data. This header should be split up.
2011-08-22 18:21:33 +02:00
Pablo Neira Ayuso ed5cacb240 src: port openBSC over libosmo-abis
This is a big patch that ports openBSC over libosmo-abis.
Sorry, the changes that are included here are all dependent
of libosmo-abis, splitting them into smaller pieces would
leave the repository in some intermediate state, which is
not desired.

The main changes are:

- The directory libabis/ has been removed as it now lives in
  libosmo-abis.

- new configuration file format for nanoBTS and HSL femto, we
  need to define the virtual e1_line and attach it to the OML
  link.

- all the existing BTS drivers (nanoBTS, hsl femto, Nokia site,
  BS11 and rbs2000) now use the new libosmo-abis framework.

- use r232 input driver available in libosmo-abis for bs11_config.

- use ipa_msg_recv instead of old ipaccess_read_msg function.

- delete definition of gsm_e1_subslot and input_signal_data.
  These structures now lives in libosmo-abis.

Most of this patch are deletions of libabis/ which has been
moved to libosmo-abis.

This patch also modifies openBSC to use all the new definitions
available in libosmocore and libosmo-abis. In order to do that,
we have replaced the following:

- DINP, DMI, DMIB and DMUX by their respective DL* correspondences.
- SS_GLOBAL by SS_L_GLOBAL
- SS_INPUT by SS_L_INPUT
- S_GLOBAL_SHUTDOWN by S_L_GLOBAL_SHUTDOWN
- SS_INPUT by SS_L_INPUT
- S_INP_* by S_L_INP_* sub-signals
- E1INP_NODE by L_E1INP_NODE vty node

This patch has been tested with:
- one nanoBTS
- the HSL femto with the examples available under libosmo-abis
- BS11 with both dahdi and misdn drivers.
2011-08-19 22:38:35 +02:00
Holger Hans Peter Freyther 95fd72b9f7 misc: Remove the osmocom/core/process.h include
The osmo_daemonize moved from process.h to application.h (that
is already included), remove the process.h include.
2011-07-18 10:40:13 +02:00
Harald Welte 7017fa7c9d [bsc-nat] ctrlif: use llist_entry() macro and fix overly-long lines 2011-07-13 14:53:16 +02:00
Harald Welte f071e16f23 [bsc-nat] ctrlif: save ourselves one level of indentation 2011-07-13 14:53:16 +02:00
Harald Welte 6552047d44 [bsc-nat] ctrlif: use the 'err' label consistently
and propagate -ENOMEM in case we have no memory
2011-07-13 14:53:16 +02:00
Harald Welte f8e49dd187 bsc-nat: ctrlif: split out handle_ctrlif_msg() from ipaccess_bsc_read_cb()
We want to avoid spaghetti code by creating smaller functions,
which also helps with the line lengths / indentation levels.
2011-07-13 14:53:16 +02:00
Harald Welte 1b5e5c3727 controlif: declare controlif_setup() in control_cmd.h
this avoids us to copy+paste external declarations over all 'main'
files.
2011-07-13 14:53:16 +02:00
Daniel Willmann a86bc39cc9 nat: Use libctrl and add command forwarding to osmo-bsc
Passes commands beginning with "bsc.<num>" to the bsc that is
responsible for LAC <num>.
2011-07-13 14:07:11 +02:00
Holger Hans Peter Freyther e36b487958 nat: Add VTY code to configure the SMSC rewriting 2011-06-01 20:47:01 +02:00