server config UPDATE tree walk config

Rewrite server configuration. Adds robustness. Rollback support.
Readability and scalability improved by utilizing YANG tree structure.

Author: Roytak

CMakeLists.txt

@@ -123,9 +123,7 @@ if(ENABLE_SSH_TLS)
         src/server_config_util_ssh.c
         src/session_client_tls.c
         src/session_server_tls.c
-        src/server_config_util_tls.c
-        src/server_config_ks.c
-        src/server_config_ts.c)
+        src/server_config_util_tls.c)
     set(SSH_TLS_MACRO "#ifndef NC_ENABLED_SSH_TLS\n#define NC_ENABLED_SSH_TLS\n#endif")
 endif()
 

examples/config.json

@@ -8,8 +8,12 @@
             "name": "ssh-password-auth-endpt",
             "ssh": {
               "tcp-server-parameters": {
-                "local-address": "127.0.0.1",
-                "local-port": 10000
+                "local-bind": [
+                    {
+                        "local-address": "127.0.0.1",
+                        "local-port": 10000
+                    }
+                ]
               },
               "ssh-server-parameters": {
                 "server-identity": {
@@ -32,7 +36,9 @@
                     "user": [
                       {
                         "name": "admin",
-                        "password": "$0$admin"
+                        "password": {
+                            "hashed-password": "$0$admin"
+                        }
                       }
                     ]
                   }
@@ -44,8 +50,12 @@
             "name": "ssh-pubkey-auth-endpt",
             "ssh": {
               "tcp-server-parameters": {
-                "local-address": "127.0.0.1",
-                "local-port": 10001
+                "local-bind": [
+                    {
+                        "local-address": "127.0.0.1",
+                        "local-port": 10001
+                    }
+                ]
               },
               "ssh-server-parameters": {
                 "server-identity": {

examples/server.c

@@ -244,6 +244,13 @@ init(const char *unix_socket_path, struct ly_ctx **context, struct nc_pollsessio
         }
     }
 
+    /* since nc_server_config_setup_data() requires all implicit nodes to be present and the example
+     * configuration data does not contain all of them, we need to add them */
+    rc = lyd_new_implicit_tree(config, LYD_IMPLICIT_NO_STATE, NULL);
+    if (rc) {
+        ERR_MSG_CLEANUP("Adding implicit nodes to the example configuration data failed.\n");
+    }
+
     /* apply the example configuration data to the server */
     rc = nc_server_config_setup_data(config);
     if (rc) {