This PR is in conjunction with a PR in metasploit-payloads.

This PR updates the resolve_host and resolve_hosts to now support resolving multiple host IPs.

The changes support backwards compatibility for old Meterpreter sessions by checking for TLV types off TLV_TYPE_IP that follows the existing logic, as well as the new TLV_TYPE_RESOLVE_HOST_ENTRY TLV.

Verification

Needs to be tested in tandem with the metasploit-payloads PR.

resolve_host

• Start msfconsole
• use php/meterpreter/reverse_tcp
• Get a Meterpreter session
• Run the following command irb -e "framework.sessions.values.last.net.resolve.resolve_host 'rapid7.com'"
• Add a breakpoint and verify you get multiple IPs being resolved
• Verify you see the following outputs

{:hostname=>"rapid7.com", :ip=>"108.156.39.19", :ips=>["108.156.39.19", "108.156.39.105", "108.156.39.48", "108.156.39.8"]}

resolve_hosts

• Start msfconsole
• use php/meterpreter/reverse_tcp
• Get a Meterpreter session
• Run the following command irb -e "framework.sessions.values.last.net.resolve.resolve_hosts ['rapid7.com', 'google.com']"
• Add a breakpoint and verify you get multiple IPs being resolved
• Verify you see the following output:

[{:hostname=>"rapid7.com", :ip=>"108.156.39.19", :ips=>["108.156.39.19", "108.156.39.105", "108.156.39.48", "108.156.39.8"]}, {:hostname=>"google.com", :ip=>"216.58.201.110", :ips=>["216.58.201.110"]}]