diff options
| author | Holger Hans Peter Freyther <zecke@selfish.org> | 2010-05-16 16:36:36 +0800 |
|---|---|---|
| committer | Holger Hans Peter Freyther <zecke@selfish.org> | 2010-06-15 20:24:20 +0800 |
| commit | c58da4b374c6a748bda60c6e3068568b8a3f220c (patch) | |
| tree | d08f2273de4c9c446a12ccc3f3f00965d08b52c3 /openbsc/src/nat/bsc_nat.c | |
| parent | 605f62a16a98ad25e98d3032e771e369839092a1 (diff) | |
[nat] Add the notion of a "local" connection.
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...
Diffstat (limited to 'openbsc/src/nat/bsc_nat.c')
| -rw-r--r-- | openbsc/src/nat/bsc_nat.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c index 3ee537473..65f6eecdb 100644 --- a/openbsc/src/nat/bsc_nat.c +++ b/openbsc/src/nat/bsc_nat.c @@ -609,6 +609,7 @@ static void ipaccess_auth_bsc(struct tlv_parsed *tvp, struct bsc_connection *bsc static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg) { int con_found = 0; + int con_filter = 0; struct bsc_connection *con_bsc = NULL; int con_type; struct bsc_nat_parsed *parsed; @@ -659,6 +660,7 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg) if (con) { con_found = 1; con_bsc = con->bsc; + con_filter = con->con_local; } break; case SCCP_MSG_TYPE_RLC: @@ -666,6 +668,7 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg) if (con) { con_found = 1; con_bsc = con->bsc; + con_filter = con->con_local; } remove_sccp_src_ref(bsc, msg, parsed); break; @@ -693,6 +696,10 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg) goto exit2; } + /* do not forward messages to the MSC */ + if (con_filter) + goto exit2; + /* send the non-filtered but maybe modified msg */ queue_for_msc(nat->msc_con, msg); talloc_free(parsed); |