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mirror of https://git.FreeBSD.org/src.git synced 2024-10-18 02:19:39 +00:00

ipf.5: revert C style(9) applied to man page

These changes were made by accident in:
    ipfilter: Adjust userland returns to conform to style(9)
    2582ae5740

That commit made similar mistakes in other man pages, but those have
already been fixed.

Signed-off-by:	Graham Percival <gperciva@tarsnap.com>
Reviewed by:	mhorne
Sponsored by:	Tarsnap Backup Inc.
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1433
This commit is contained in:
Graham Percival 2024-09-24 10:11:33 -07:00 committed by Mitchell Horne
parent 3fb656f8ef
commit ce251baf42

View File

@ -223,7 +223,7 @@ To address this problem, a block rule can be qualified in two ways.
The first of these is specific to TCP and instructs IPFilter to send back
a reset (RST) packet. This packet indicates to the remote system that the
packet it sent has been rejected and that it shouldn't make any further
attempts( to send packets to that port. Telling IPFilter to return a TCP);
attempts to send packets to that port. Telling IPFilter to return a TCP
RST packet in response to something that has been received is achieved
with the return-rst keyword like this:
.PP
@ -239,18 +239,18 @@ For all of the other protocols handled by the IP protocol suite, to send
back an error indicating that the received packet was dropped requires
sending back an ICMP error packet. Whilst these can also be used for TCP,
the sending host may not treat the received ICMP error as a hard error
in( the same way as it does the TCP RST packet. To return an ICMP error);
in the same way as it does the TCP RST packet. To return an ICMP error
it is necessary to place return-icmp after the block keyword like this:
.PP
.nf
block return-icmp in proto udp from any to 192.168.0.1/24
.fi
.PP
When( electing to return an ICMP error packet, it is also possible to);
When electing to return an ICMP error packet, it is also possible to
select what type of ICMP error is returned. Whilst the full compliment
of ICMP unreachable codes can be used by specifying a number instead of
the string below, only the following should be used in conjunction with
return-icmp.( Which return code to use is a choice to be made when);
return-icmp. Which return code to use is a choice to be made when
weighing up the pro's and con's. Using some of the codes may make it
more obvious that a firewall is being used rather than just the host
not responding.