Add ssh connect function for M-plane

radio/fhi_72/mplane/CMakeLists.txt

@@ -26,6 +26,7 @@ target_compile_definitions(oran_fhlib_5g_mplane PRIVATE OAI_MPLANE)
 
 target_sources(oran_fhlib_5g_mplane PRIVATE
                init-mplane.c
+               connect-mplane.c
 )
 
 pkg_check_modules(libyang REQUIRED libyang)

radio/fhi_72/mplane/connect-mplane.c

@@ -0,0 +1,57 @@
+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+#include "connect-mplane.h"
+#include "common/utils/assertions.h"
+
+#include <libyang/libyang.h>
+#include <nc_client.h>
+
+static int my_auth_hostkey_check(const char *hostname, ssh_session session, void *priv)
+{
+  (void)hostname;
+  (void)session;
+  (void)priv;
+
+  return 0;
+}
+
+bool connect_mplane(ru_session_t *ru_session)
+{
+  int port = NC_PORT_SSH;
+  char *user = "oranbenetel";
+
+  nc_client_ssh_set_username(user);
+
+  nc_client_ssh_set_auth_pref(NC_SSH_AUTH_PUBLICKEY, 1);  // ssh-key identification
+  nc_client_ssh_set_auth_pref(NC_SSH_AUTH_PASSWORD, -1);
+  nc_client_ssh_set_auth_pref(NC_SSH_AUTH_INTERACTIVE, -1);
+
+  nc_client_ssh_set_auth_hostkey_check_clb(my_auth_hostkey_check, "DATA");  // host-key identification
+
+  MP_LOG_I("RPC request to RU \"%s\" = <connect> with username \"%s\" and port ID \"%d\".\n", ru_session->ru_ip_add, user, port);
+  ru_session->session = nc_connect_ssh(ru_session->ru_ip_add, port, NULL);
+  AssertError(ru_session->session != NULL, return false, "[MPLANE] RU IP address %s unreachable. Maybe M-plane is disabled on the RU?\n", ru_session->ru_ip_add);
+
+  MP_LOG_I("Successfuly connected to RU \"%s\" with username \"%s\" and port ID \"%d\".\n", ru_session->ru_ip_add, user, port);
+
+  return true;
+}

radio/fhi_72/mplane/connect-mplane.h

@@ -0,0 +1,29 @@
+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ * except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.openairinterface.org/?page_id=698
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+#ifndef CONNECT_MPLANE_H
+#define CONNECT_MPLANE_H
+
+#include "ru-mplane-api.h"
+
+bool connect_mplane(ru_session_t *ru_session);
+
+#endif /* CONNECT_MPLANE_H */

radio/fhi_72/oran_isolate.c

@@ -41,6 +41,7 @@
 
 #ifdef OAI_MPLANE
 #include "mplane/init-mplane.h"
+#include "mplane/connect-mplane.h"
 #endif
 
 typedef struct {
@@ -293,6 +294,15 @@ __attribute__((__visibility__("default"))) int transport_init(openair0_device *d
   ru_session_list_t ru_session_list = {0};
   success = init_mplane(&ru_session_list);
   AssertFatal(success, "[MPLANE] Cannot initialize M-plane.\n");
+
+  bool ru_configured[ru_session_list.num_rus];
+  for (size_t i = 0; i < ru_session_list.num_rus; i++) {
+    ru_session_t *ru_session = &ru_session_list.ru_session[i];
+    ru_configured[i] = connect_mplane(ru_session);
+    if (!ru_configured[i]) {
+      continue;
+    }
+  }
 #else
   success = get_xran_config(openair0_cfg, &fh_init, fh_config);
   AssertFatal(success, "cannot get configuration for xran\n");