/usr/click/bin/backend/geneve.c has been created to support GENEVE CLI commands in Geneve Generic Network Virtualization Encapsulation.  
Additionally, I have added the CLI structure in /usr/click/lib/libparser/commands.pm to define the format of each CLI command, including its arguments, types, and whether they are optional.  
Following the approach used in VXLAN, I found that different VXLAN CLI command functions are defined in two separate files:

- ./usr/src/sys/net/if_vxlan.c

- ./usr/click/lib/libip/sip.c  
Similarly, I have split the definition of Geneve functions into two different files:

- ./usr/src/sys/net/if_geneve.c

- ./usr/click/bin/backend/geneve.c  
However, this build only provides the Geneve framework, meaning it lacks actual functionality.

All CLI commands in Geneve Generic Network Virtualization Encapsulation are now available. A response message will be printed based on the provided arguments.
AN(config)#geneve interface g1 22 

Set GENEVE: g1, VI number: 22
AN(config)#no geneve associate g1 v1 

GENEVE : g1, port name: v1
AN(config)#show geneve bind g1 

show GENEVE bind
AN(config)#clear geneve tunnel 

Clear GENEVE tunnel
AN(config)#geneve ?

associate           Associate GENEVE with VLAN to enable GENEVE gateway function

bind                Bind a GENEVE interface to a GENEVE tunnel

disable             Disable GENEVE

enable              Enable GENEVE

forwarding          Configure GENEVE forwarding entries

interface           Create a GENEVE interface

learn               Enable or disable GENEVE learning function

port                Configure GENEVE port

tunnel              Create a GENEVE tunnel
AN(config)#no geneve ?

associate           Disassociate GENEVE from VLAN

bind                Unbind GENEVE interface from GENEVE tunnel

forwarding          Delete GENEVE forwarding entries

interface           Delete a GENEVE interface

tunnel              Delete a GENEVE tunnel
AN(config)#show geneve ?    

all                 Display all configurations of GENEVE

associate           Display associated Layer 2 configurations

bind                Display tunnel binding configurations

forwarding          Display all GENEVE forwarding entries

interface           Display GENEVE interface configurations

learn               Display GENEVE learn configurations

port                Display GENEVE port configurations

tunnel              Display GENEVE tunnel configurations
AN(config)#clear geneve ?  

all                 Clear all GENEVE configurations

associate           Clear associated Layer 2 configurations

bind                Clear tunnel binding configurations of GENEVE interfaces

forwarding          Clear GENEVE forwarding entries

interface           Clear all GENEVE interfaces

tunnel              Clear all GENEVE tunnels