VTY: interactive: never look for matching commands on parent node
For interactive telnet VTY, remove the implicit move up to the parent node when
a command did not succeed on the current node level.
When reading config files, this behavior was useful to allow skipping explicit
'exit' commands. (A different patch deals with that.)
In the telnet VTY, this behavior was never necessary. Explicit 'exit' commands
can move to the parent node, and typically uninformed users expect to require
that.
On a telnet VTY, counting indents like for reading config files is not an
option: a user will always type from the first column or may paste some leading
spaces without intended meaning.
After this patch, it is thus no longer possible to paste a complete config
across several node levels directly to a telnet session, unless it contains
'exit' commands.
Change-Id: Id73cba2dd34676bad8a130e9c45e67a272f19588
diff --git a/src/vty/command.c b/src/vty/command.c
index 33862c0..52c7191 100644
--- a/src/vty/command.c
+++ b/src/vty/command.c
@@ -2111,12 +2111,10 @@
cmd_execute_command(vector vline, struct vty *vty, struct cmd_element **cmd,
int vtysh)
{
- int ret, saved_ret, tried = 0;
+ int ret;
enum node_type onode;
- void *oindex;
onode = vty->node;
- oindex = vty->index;
if (cmd_try_do_shortcut(vty->node, vector_slot(vline, 0))) {
vector shifted_vline;
@@ -2139,29 +2137,7 @@
return ret;
}
- saved_ret = ret = cmd_execute_command_real(vline, vty, cmd);
-
- if (vtysh)
- return saved_ret;
-
- /* Go to parent for config nodes to attempt to find the right command */
- while (ret != CMD_SUCCESS && ret != CMD_WARNING
- && is_config_child(vty)) {
- vty_go_parent(vty);
- ret = cmd_execute_command_real(vline, vty, cmd);
- tried = 1;
- if (ret == CMD_SUCCESS || ret == CMD_WARNING) {
- /* succesfull command, leave the node as is */
- return ret;
- }
- }
- /* no command succeeded, reset the vty to the original node and
- return the error for this node */
- if (tried) {
- vty->node = onode;
- vty->index = oindex;
- }
- return saved_ret;
+ return cmd_execute_command_real(vline, vty, cmd);
}
/* Execute command by argument readline. */