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authorHolger Hans Peter Freyther <holger@moiji-mobile.com>2015-04-05 13:45:53 +0200
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2015-04-05 14:06:16 +0200
commit7c00983275c1b830b88db124bc0b15078b9cd45d (patch)
tree53a84fb2ec43f6c882522aef1eda8d187e8a0b7b /openbsc
parentfa1cba9e606c3364fecabe85967950cc217fd870 (diff)
nat: Inform others if an IMSI is rejected
In case one wants to monitor the access lists one there is now a trap for the IMSI.
Diffstat (limited to 'openbsc')
-rw-r--r--openbsc/include/openbsc/bsc_nat.h4
-rw-r--r--openbsc/src/osmo-bsc_nat/bsc_nat.c4
-rw-r--r--openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c18
3 files changed, 26 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/bsc_nat.h b/openbsc/include/openbsc/bsc_nat.h
index 15e20997a..9d29d26c3 100644
--- a/openbsc/include/openbsc/bsc_nat.h
+++ b/openbsc/include/openbsc/bsc_nat.h
@@ -498,6 +498,10 @@ int bsc_nat_handle_ctrlif_msg(struct bsc_connection *bsc, struct msgb *msg);
int bsc_nat_extract_lac(struct bsc_connection *bsc, struct nat_sccp_connection *con,
struct bsc_nat_parsed *parsed, struct msgb *msg);
+/**
+ * CTRL interface helper
+ */
+void bsc_nat_inform_reject(struct bsc_connection *bsc, const char *imsi);
/*
* Use for testing
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c
index 6b061bc20..2f6711a53 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c
@@ -1060,6 +1060,8 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
filter = bsc_nat_filter_sccp_cr(bsc, msg, parsed,
&con_type, &imsi, &cause);
if (filter < 0) {
+ if (imsi)
+ bsc_nat_inform_reject(bsc, imsi);
bsc_stat_reject(filter, bsc, 0);
goto exit3;
}
@@ -1091,6 +1093,8 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
filter = bsc_nat_filter_dt(bsc, msg,
con, parsed, &cause);
if (filter < 0) {
+ if (imsi)
+ bsc_nat_inform_reject(bsc, imsi);
bsc_stat_reject(filter, bsc, 1);
bsc_send_con_release(bsc, con, &cause);
con = NULL;
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c b/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c
index 1a45e7667..6aa2ff044 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c
@@ -412,3 +412,21 @@ error:
return NULL;
}
+void bsc_nat_inform_reject(struct bsc_connection *conn, const char *imsi)
+{
+ struct ctrl_cmd *cmd;
+
+ cmd = ctrl_cmd_create(conn, CTRL_TYPE_TRAP);
+ if (!cmd) {
+ LOGP(DCTRL, LOGL_ERROR, "Failed to create TRAP command.\n");
+ return;
+ }
+
+ cmd->id = "0";
+ cmd->variable = talloc_asprintf(cmd, "net.0.bsc.%d.notification-rejection-v1",
+ conn->cfg->nr);
+ cmd->reply = talloc_asprintf(cmd, "imsi=%s", imsi);
+
+ ctrl_cmd_send_to_all(conn->cfg->nat->ctrl, cmd);
+ talloc_free(cmd);
+}