Commit Graph

31 Commits

Author SHA1 Message Date
Holger Hans Peter Freyther c09f8a3b7f filter: Remove nat_sccp_connection from public API 2015-05-03 21:59:29 +02:00
Holger Hans Peter Freyther a1e6bd6768 filter: Remove nat from bsc_nat_acc_lst and replace with msg 2015-05-03 21:42:28 +02:00
Holger Hans Peter Freyther d7e04b9956 filter: Cease out "struct bsc_nat" from the API
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.
2015-05-03 21:42:28 +02:00
Holger Hans Peter Freyther 4579bb1ed7 filter: Move the access list management around 2015-05-03 21:42:27 +02:00
Jacob Erlbeck 7ffa7b095f nitb: Fix IMSI/IMEI buffer handling (Coverity)
Currently the handling of the buffers is not done consistently. Some
code assumes that the whole buffer may be used to store the string
while at other places, the last buffer byte is left untouched in the
assumption that it contains a terminating NUL-character. The latter
is the correct behaviour.

This commit changes to code to not touch the last byte in the buffers
and to rely on the last byte being NUL. So the maximum IMSI/IMEI
length is GSM_IMSI_LENGTH-1/GSM_IMEI_LENGTH-1.

For information: We assume that we allocate the structure with
talloc_zero. This means we have NULed the entire imsi array and then
only write sizeof - 1 characters to it. So the last byte remains NUL.

Fixes: Coverity CID 1206568, 1206567
Sponsored-by: On-Waves ehf
2015-04-10 08:47:00 +02:00
Harald Welte 4a88a49c03 adopt recent IPA related symbol rename
... which happened during recent migration of IPA functionality from
libosmo-abis into libosmocore.
2014-08-20 23:47:56 +02:00
Jacob Erlbeck e827812051 ipa: Use enhanced ipa_msg_recv_buffered() to cope with partioned IPA messages
The old ipa_msg_recv() implementation didn't support partial receive,
so IPA connections got disconnected when this happened.

This patch adds the handling of the temporary message buffers and uses
ipa_msg_recv_buffered().

It has been successfully tested by jerlbeck with osmo-nitb and
osmo-bsc.

Ticket: OW#768
Sponsored-by: On-Waves ehf
2014-04-01 13:40:59 +02:00
Holger Hans Peter Freyther 6fcc3a9e8a nat: Attempt to follow the MODULE_METHOD pattern for methods
Rename methods to be like bsc_ussd_ACTION.
2013-09-02 11:11:16 +02:00
Jacob Erlbeck 6cb2cccc8d nat/ussd: Add 'show ussd-connection' vty command
This command returns the current state of the connection to the USSD
side channel provider. It shows whether a provider has been connected
and authorized or not.

Fixes: OW#953
2013-08-14 12:07:07 +02:00
Holger Hans Peter Freyther 27876a2df0 nat: Fix potential memory leak when reading a message
Spotted while going through the code with Jacob. We could have
leaked the msgb in case of error.
2013-08-13 14:48:44 +02:00
Holger Hans Peter Freyther a164d5291e nat: Fix compiler warning and cast uint16_t to uint8_t 2013-07-03 16:18:37 +02:00
Holger Hans Peter Freyther 7a0010bdd4 nat: Include LAC/CI as TV values at the end of the 'status' message
Extend the status message and send LAC/CI as part of the status
message. It is using TV to allow sending more fields in the feature.
We only need to encode the data and this is why there is no tlv
description yet.
2013-04-29 20:40:44 +02:00
Holger Hans Peter Freyther 2bc90c274d nat: Use memcmp for the token on the USSD interface as well
This is similar to the token on the A-interface. There are no more
token based authentication in the NAT.
2013-04-22 10:54:32 +02:00
Holger Hans Peter Freyther c279e39c12 nat: Rename "struct sccp_connections" to "struct nat_sccp_connection"
The name sccp_connection is used in the osmo-sccp code, sccp_connections
was used in the NAT for tracking a sccp_connection. Rename it so it is
obvious that the struct belongs to the nat.

The rename was done with sed:
$ sed -i s,"struct sccp_connections","struct nat_sccp_connection",g \
		include/openbsc/*.h src/osmo-bsc_nat/* tests/*/*
2013-04-16 09:53:13 +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
Pablo Neira Ayuso c0d17f2266 src: use namespace prefix osmo_* for misc utils
Summary of changes:

s/bcd2char/osmo_bcd2char/g
s/char2bcd/osmo_char2bcd/g
s/hexparse/osmo_hexparse/g
s/hexdump/osmo_hexdump/g
s/hexdump_nospc/osmo_hexdump_nospc/g
s/ubit_dump/osmo_ubit_dump/g
s/static_assert/osmo_static_assert/g
2011-05-07 12:58:59 +02:00
Pablo Neira Ayuso dfb342c19a src: use namespace prefix osmo_counter*
Summary of changes:

s/struct counter/struct osmo_counter/g
s/counter_inc/osmo_counter_inc/g
s/counter_get/osmo_counter_get/g
s/counter_reset/osmo_counter_reset/g
s/counter_alloc/osmo_counter_alloc/g
s/counter_free/osmo_counter_free
2011-05-06 12:14:16 +02:00
Pablo Neira Ayuso e1273b1f3c src: use namespace prefix osmo_wqueue*
Summary of changes:

s/struct write_queue/struct osmo_wqueue/g
s/write_queue_init/osmo_wqueue_init/g
s/write_queue_clear/osmo_wqueue_clear/g
s/write_queue_enqueue/osmo_wqueue_enqueue/g
s/write_queue_bfd_cb/osmo_wqueue_bfd_cb/g
2011-05-06 12:12:49 +02:00
Pablo Neira Ayuso 4db9299286 src: use namespace prefix osmo_fd* and osmo_select*
Summary of changes:

s/struct bsc_fd/struct osmo_fd/g
s/bsc_register_fd/osmo_fd_register/g
s/bsc_unregister_fd/osmo_fd_unregister/g
s/bsc_select_main/osmo_select_main/g
2011-05-06 12:11:23 +02:00
Pablo Neira Ayuso bf540cb7c3 src: use namespace prefix osmo_timer* for timer functions
Summary of changes:

s/struct timer_list/struct osmo_timer_list/g
s/bsc_add_timer/osmo_timer_add/g
s/bsc_schedule_timer/osmo_timer_schedule/g
s/bsc_del_timer/osmo_timer_del/g
s/bsc_timer_pending/osmo_timer_pending/g
s/bsc_nearest_timer/osmo_timers_nearest/g
s/bsc_prepare_timers/osmo_timers_prepare/g
s/bsc_update_timers/osmo_timers_update/g
s/bsc_timer_check/osmo_timers_check/g
2011-05-06 12:11:06 +02:00
Holger Hans Peter Freyther 123bc32834 ussd: Keep track of used TIs for USSD and forward messages
Keep track of the used transaction identifier and always forward
messages to the USSD provider. E.g. this can be used to have a
dialogue going. Right now it is still possible that the MSC will
close down the connection.
2011-04-19 13:06:47 +02:00
Holger Hans Peter Freyther 91b9a45be4 nat: Inform the USSD Provider about lost connections 2011-04-18 17:32:40 +02:00
Holger Hans Peter Freyther 5cde92cb0e nat: And out the skip_indicator/transaction id from the gsm48 header
We need to and out the protocol discriminator as call control
might have use transactions. This has only failed for the USSD
filter so far as this must deal with transactions.
2011-04-13 18:56:13 +02:00
Pablo Neira Ayuso ca05d432d7 src: more robust ipaccess_idtag_parse()
Now ipaccess_idtag_parse() returns -EINVAL instead of -1. We also
check for the return value of this function in every invocation to
skip further processing in case of messages with malformed TLVs.

This idea was suggested by Zecke.
2011-04-12 21:50:46 +02:00
Holger Hans Peter Freyther 0d93fb4127 nat: Fix a crash due the refactoring and pass the nat again. 2011-04-11 20:30:56 +02:00
Holger Hans Peter Freyther ef38e85542 nat: Remember if the MSC accepted the connection on principle
For the USSD module we only want to handle requests that are
legitimate. This is achieved by looking for the CM Service Accept
or the BSSAP CIPHER MODE COMMAND.
2011-04-06 11:29:46 +02:00
Pablo Neira Ayuso 165fe56260 libcommon: socket: extend make_sock() prototype
This patch extends the make_sock() prototype so you can fully set
the fields priv_nr and data of the bsc_fd structure.

This is the first step to get rid of the internal make_sock()
implementation that ipaccess-proxy uses.

This patch includes a minor cleanup to pass INADDR_ANY instead
of zero, if you do not want to bind the socket to one specific
address.
2011-04-05 18:33:24 +02:00
Holger Hans Peter Freyther a18b11602c nat: Make the USSD number matching a regexp
This allows to match multiple numbers and multiple patterns
2011-04-01 17:32:21 +02:00
Harald Welte d36ff76f9d Fix build of bsc-nat and GPRS code after include path change
The last patch changed the osmocore include paths, this fixes some build
problems caused by it
2011-03-23 18:33:26 +01:00
Pablo Neira Ayuso 136f453dd2 src: use new library libosmogsm and new path to headers in libosmocore
libosmogsm is a new library that is distributed in the libosmocore.
Now, openbsc depends on it. This patch gets openbsc with this
change.

This patch also rewrites all include path to the new
osmocom/[gsm|core]

Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
2011-03-23 18:17:56 +01:00
Harald Welte a17faf8512 Rename bsc_nat -> osmo-bsc_nat and bsc_mgcp -> osmo-bsc_mgcp
This now enforces a unique structure: All of our main daemon
programs start with an "osmo-" prefix.
2011-03-03 23:36:48 +01:00