sbin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl

sbin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

ipfilter: Obtain the interface name more efficiently

Rather than use a kmem read to determine the interface name used by a
nat_t structure through a pointer, nat_ipfs->netif->if_xname, obtain it
dir

ipfilter: Obtain the interface name more efficiently

Rather than use a kmem read to determine the interface name used by a
nat_t structure through a pointer, nat_ipfs->netif->if_xname, obtain it
directly from nat_ifnames in the nat_t structure itself using the new
FORMAT_IF macro.

MFC after: 1 week

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ipfilter: Print protocol when listing NAT table mappings

NAT table mappings list only the source and destination IP, the source
and destinaion port numbers, and their mappings. But the protocol is n

ipfilter: Print protocol when listing NAT table mappings

NAT table mappings list only the source and destination IP, the source
and destinaion port numbers, and their mappings. But the protocol is not
listed. Now that Facebook and Google use QUIC, seeing port 443 in in a
list of active NAT sessions could mean 443/tcp or 443/udp. This patch
adds the protocol to the listing to aid in determining whether HTTPS is
TCP or QUIC in a NAT mapping listing. This also helps differentiatinete
between other protocols such as ICMP, ESP, and AH in ipnat list of active
sessions.

MFC after: 1 week

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ipflter: ANSIfy userland function declarations

Convert ipfilter userland function declarations from K&R to ANSI. This
syncs our function declarations with NetBSD hg commit 75edcd7552a0
(apply our ch

ipflter: ANSIfy userland function declarations

Convert ipfilter userland function declarations from K&R to ANSI. This
syncs our function declarations with NetBSD hg commit 75edcd7552a0
(apply our changes). Though not copied from NetBSD, this change was
partially inspired by NetBSD's work and inspired by style(9).

Reviewed by: glebius (for #network)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33595

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ipfilter: Move userland bits to sbin

Through fixes and improvements our ipfilter sources have diverged
enough to warrant move from contrib into sbin/ipf. Now that I'm
planning on implementing MSS cl

ipfilter: Move userland bits to sbin

Through fixes and improvements our ipfilter sources have diverged
enough to warrant move from contrib into sbin/ipf. Now that I'm
planning on implementing MSS clamping as in iptables it makes more
sense to move ipfilter to sbin.

This is the second of three commits of the ipfilter move.

Suggested by glebius on two occaions.

Suggested by and discussed with: glebius
Reviewed by: glebius, kp (for #network)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33510

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