Add IPv6 support to the ipfw uid/gid check. Pass an ip_fw_args structure to the check_uidgid() function, since it contains all needed arguments and also pointer to mbuf and now it is possible use in_pcblookup_mbuf() function.
Add IPv6 support to the ipfw uid/gid check. Pass an ip_fw_args structure
to the check_uidgid() function, since it contains all needed arguments
and also pointer to mbuf and now it is possible use in_pcblookup_mbuf()
function.

Since i can not test it for the non-FreeBSD case, i keep this ifdef
unchanged.

Tested by:	Alexander V. Chernikov
MFC after:	3 weeks

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase