uj pf modul netbsd-hez

vegre volt egy kis idom alkotni:
pf modul + autoload/unload = cool :-) 


# modstat
NAME             CLASS      SOURCE     REFS  SIZE     REQUIRES
bpf              driver     builtin    0     -        -
compat           misc       builtin    0     -        -
coredump         misc       filesys    1     3064     -
exec_elf32       misc       filesys    0     7229     coredump
exec_script      misc       filesys    0     1187     -
ffs              vfs        boot       0     166001   -
kernfs           vfs        filesys    0     11195    -
layerfs          misc       filesys    1     4798     -
nullfs           vfs        filesys    0     1420     layerfs
procfs           vfs        filesys    0     28071    -
ptyfs            vfs        filesys    0     8877     -
secmodel_bsd44   secmodel   builtin    0     -        suser,securelevel
securelevel      secmodel   builtin    1     -        -
suser            secmodel   builtin    1     -        -
tmpfs            vfs        filesys    0     18374    -

# pfctl -e
No ALTQ support in kernel
ALTQ related functions disabled
pf enabled

# modstat
NAME             CLASS      SOURCE     REFS  SIZE     REQUIRES
bpf              driver     builtin    1     -        -
compat           misc       builtin    0     -        -
coredump         misc       filesys    1     3064     -
exec_elf32       misc       filesys    0     7229     coredump
exec_script      misc       filesys    0     1187     -
ffs              vfs        boot       0     166001   -
kernfs           vfs        filesys    0     11195    -
layerfs          misc       filesys    1     4798     -
nullfs           vfs        filesys    0     1420     layerfs
pf               misc       filesys    0     161402   bpf
procfs           vfs        filesys    0     28071    -
ptyfs            vfs        filesys    0     8877     -
secmodel_bsd44   secmodel   builtin    0     -        suser,securelevel
securelevel      secmodel   builtin    1     -        -
suser            secmodel   builtin    1     -        -
tmpfs            vfs        filesys    0     18374    -

# pfctl -d
No ALTQ support in kernel
ALTQ related functions disabled
pf disabled

# modstat
NAME             CLASS      SOURCE     REFS  SIZE     REQUIRES
bpf              driver     builtin    0     -        -
compat           misc       builtin    0     -        -
coredump         misc       filesys    1     3064     -
exec_elf32       misc       filesys    0     7229     coredump
exec_script      misc       filesys    0     1187     -
ffs              vfs        boot       0     166001   -
kernfs           vfs        filesys    0     11195    -
layerfs          misc       filesys    1     4798     -
nullfs           vfs        filesys    0     1420     layerfs
procfs           vfs        filesys    0     28071    -
ptyfs            vfs        filesys    0     8877     -
secmodel_bsd44   secmodel   builtin    0     -        suser,securelevel
securelevel      secmodel   builtin    1     -        -
suser            secmodel   builtin    1     -        -
tmpfs            vfs        filesys    0     18374    -