1Another TODO list is available here:
2
3	https://www.netbsd.org/~rmind/npf/__tasklist.html
4
5====== DOCUMENTATION ======
6
7-- how to convert other packet filters to npf
8
9-- add more examples
10
11-- modify the doc of IPF to indicate it is deprecated, and that
12   NPF should be used instead
13
14====== NPFCTL ======
15
16-- npfctl start does not load the configuration if not loaded.
17   It is not clear you need to reload first. Or if it loads it should
18   print the error messages. Or it should be called enable/disable since
19   this is what it does. It does not "start" because like an engine with
20   no fuel, an npf with no configuration does not do much.
21
22-- although the framework checks the file for consistency, returning EINVAL
23   for system failures is probably not good enough. For example if a module
24   failed to autoload, it is probably an error and it should be reported
25   differently?
26
27-- startup/stop script does not load and save session state
28
29-- add algo for "with short"
30
31-- implement "port-unr"
32
33-- implement block return-icmp in log final all with ipopts
34
35-- handle array variables in more places
36
37====== GENERAL ======
38
39-- disable IPv4 options by default, and add a "allow-ip4opts" feature to
40   enable them
41
42-- disable IPv6 options (IPPROTO_ROUTING, IPPROTO_HOPOPTS and IPPROTO_DSTOPTS)
43   by default, and add a "allow-ip6opts" feature to enable them
44
45-- add an ioctl, similar to PF's DIOCNATLOOK and IPF's SIOCGNATL, and document
46   it so that it can be added in third-party software, like:
47       https://github.com/squid-cache/squid/blob/5b74111aff8948e869959113241adada0cd488c2/src/ip/Intercept.cc#L263
48
49-- support IPv6 jumbograms
50
51-- support large IPv6 options, as explained here:
52       http://mail-index.netbsd.org/tech-net/2018/04/08/msg006786.html
53   But it's not a big problem - perhaps we don't care at all.
54
55-- add command line variables.  See -D option in pf.
56
57-- improve mss clamping, as explained here:
58       http://mail-index.netbsd.org/tech-net/2017/01/15/msg006224.html
59