nat: Make it possible to send MGCP messages through the IPA multiplex
Instead of handling MGCP through the UDP socket, read and write messages
through the ipa connection to the MSC.
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c b/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
index 7bbc890..32e5106 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
@@ -143,6 +143,8 @@
write_acc_lst(vty, lst);
llist_for_each_entry(pgroup, &_nat->paging_groups, entry)
write_pgroup_lst(vty, pgroup);
+ if (_nat->mgcp_ipa)
+ vty_out(vty, " mgcp-through-msc-ipa%s", VTY_NEWLINE);
return CMD_SUCCESS;
}
@@ -657,6 +659,20 @@
return CMD_SUCCESS;
}
+DEFUN(cfg_nat_mgcp_ipa,
+ cfg_nat_mgcp_ipa_cmd,
+ "mgcp-through-msc-ipa",
+ "This needs to be set at start. Handle MGCP messages through "
+ "the IPA protocol and not through the UDP socket.\n")
+{
+ if (_nat->mgcp_cfg->data)
+ vty_out(vty,
+ "%%the setting will not be applied right now.%s",
+ VTY_NEWLINE);
+ _nat->mgcp_ipa = 1;
+ return CMD_SUCCESS;
+}
+
/* per BSC configuration */
DEFUN(cfg_bsc, cfg_bsc_cmd, "bsc BSC_NR",
"BSC configuration\n" "Identifier of the BSC\n")
@@ -1086,6 +1102,7 @@
install_element(NAT_NODE, &cfg_nat_ussd_query_cmd);
install_element(NAT_NODE, &cfg_nat_ussd_token_cmd);
install_element(NAT_NODE, &cfg_nat_ussd_local_cmd);
+ install_element(NAT_NODE, &cfg_nat_mgcp_ipa_cmd);
/* access-list */
install_element(NAT_NODE, &cfg_lst_imsi_allow_cmd);