conserver: T4717: Support for setting a name for console-server devices

This adds a new 'alias' property to the console-server device definition
to allow users to connect to a console using a human-readable name
rather than just the device name.

For a configuration like:
service {
  console-server {
    device ttyUSB0 {
      speed 115200
      alias my-server
    }
  }
}

Users can connect either by doing `connect console ttyUSB0`, or
`connect console my-server`.

Names:
* Must be unique
* Are limited to 128 characters
* Are optional - if not specified, only the `connect console ttyX`
  form can be used

1 files changed, 8 insertions, 0 deletions

diff --git a/interface-definitions/service-console-server.xml.in b/interface-definitions/service-console-server.xml.in
index e9591ad87..fb71538dd 100644
--- a/interface-definitions/service-console-server.xml.in
+++ b/interface-definitions/service-console-server.xml.in
@@ -28,6 +28,14 @@
             </properties>
             <children>
               #include <include/interface/description.xml.i>
+              <leafNode name="alias">
+                <properties>
+                  <help>Human-readable name for this console</help>
+                  <constraint>
+                    <regex>[-_a-zA-Z0-9.]{1,128}</regex>
+                  </constraint>
+                </properties>
+              </leafNode>
               <leafNode name="speed">
                 <properties>
                   <help>Serial port baud rate</help>