make gsup ipa name configurable in osmo-sgsn.cfg
Add a 'gsup ipa-name' VTY command which overrides the default
IPA name used by the SGSN on the GSUP link towards the HLR.
This is required for GSUP routing in multi-SGSN networks.
The 'gsup ipa-name' option can only be set via the config file
because changing the IPA name at run-time conflicts with active
GSUP connections and routes configured in the HLR. The osmo-sgsn
program must be restarted if its IPA name needs to change.
Related: OS#3356
Change-Id: Ib2f65fed9f56b9718e8a9647e3f01dce69870c1f
diff --git a/src/gprs/sgsn_vty.c b/src/gprs/sgsn_vty.c
index 601b3c5..3757c07 100644
--- a/src/gprs/sgsn_vty.c
+++ b/src/gprs/sgsn_vty.c
@@ -203,6 +203,8 @@
vty_out(vty, " encryption %s%s",
get_value_string(gprs_cipher_names, g_cfg->cipher),
VTY_NEWLINE);
+ if (g_cfg->sgsn_ipa_name)
+ vty_out(vty, " gsup ipa-name %s%s", g_cfg->sgsn_ipa_name, VTY_NEWLINE);
if (g_cfg->gsup_server_addr.sin_addr.s_addr)
vty_out(vty, " gsup remote-ip %s%s",
inet_ntoa(g_cfg->gsup_server_addr.sin_addr), VTY_NEWLINE);
@@ -1075,6 +1077,25 @@
return CMD_SUCCESS;
}
+DEFUN(cfg_gsup_ipa_name,
+ cfg_gsup_ipa_name_cmd,
+ "gsup ipa-name NAME",
+ "GSUP Parameters\n"
+ "Set the IPA name of this SGSN\n"
+ "A unique name for this SGSN. For example: PLMN + redundancy server number: SGSN-901-70-0. "
+ "This name is used for GSUP routing and must be set if more than one SGSN is connected to the network. "
+ "The default is 'SGSN-00-00-00-00-00-00'.\n")
+{
+ if (vty->type != VTY_FILE) {
+ vty_out(vty, "The IPA name cannot be changed at run-time; "
+ "It can only be set in the configuraton file.%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ g_cfg->sgsn_ipa_name = talloc_strdup(tall_vty_ctx, argv[0]);
+ return CMD_SUCCESS;
+}
+
DEFUN(cfg_gsup_remote_ip, cfg_gsup_remote_ip_cmd,
"gsup remote-ip A.B.C.D",
"GSUP Parameters\n"
@@ -1365,6 +1386,7 @@
install_element(SGSN_NODE, &cfg_imsi_acl_cmd);
install_element(SGSN_NODE, &cfg_auth_policy_cmd);
install_element(SGSN_NODE, &cfg_encrypt_cmd);
+ install_element(SGSN_NODE, &cfg_gsup_ipa_name_cmd);
install_element(SGSN_NODE, &cfg_gsup_remote_ip_cmd);
install_element(SGSN_NODE, &cfg_gsup_remote_port_cmd);
install_element(SGSN_NODE, &cfg_gsup_oap_id_cmd);