Link pf to the build and install:

This adds the former ports registered groups: proxy and authpf as well as
the proxy user. Make sure to run mergemaster -p in oder to complete make
installworld without errors.

This also provides the passive OS fingerprints from OpenBSD (pf.os) and an
example pf.conf.

For those who want to go without pf; it provides a NO_PF knob to make.conf.

__FreeBSD_version will be bumped soon to reflect this and to be able to
change ports accordingly.

Approved by:	bms(mentor)

1 files changed, 79 insertions, 0 deletions

diff --git a/etc/pf.conf b/etc/pf.conf
new file mode 100644
index 0000000..280223a
--- /dev/null
+++ b/etc/pf.conf
@@ -0,0 +1,79 @@
+#	$FreeBSD$
+#	$OpenBSD: pf.conf,v 1.21 2003/09/02 20:38:44 david Exp $
+#
+# See pf.conf(5) and /usr/share/pf for syntax and examples.
+# Required order: options, normalization, queueing, translation, filtering.
+# Macros and tables may be defined and used anywhere.
+# Note that translation rules are first match while filter rules are last match.
+
+# Macros: define common values, so they can be referenced and changed easily.
+#ext_if="ext0"	# replace with actual external interface name i.e., dc0
+#int_if="int0"	# replace with actual internal interface name i.e., dc1
+#internal_net="10.1.1.1/8"
+#external_addr="192.168.1.1"
+
+# Tables: similar to macros, but more flexible for many addresses.
+#table <foo> { 10.0.0.0/8, !10.1.0.0/16, 192.168.0.0/24, 192.168.1.18 }
+
+# Options: tune the behavior of pf, default values are given.
+#set timeout { interval 10, frag 30 }
+#set timeout { tcp.first 120, tcp.opening 30, tcp.established 86400 }
+#set timeout { tcp.closing 900, tcp.finwait 45, tcp.closed 90 }
+#set timeout { udp.first 60, udp.single 30, udp.multiple 60 }
+#set timeout { icmp.first 20, icmp.error 10 }
+#set timeout { other.first 60, other.single 30, other.multiple 60 }
+#set timeout { adaptive.start 0, adaptive.end 0 }
+#set limit { states 10000, frags 5000 }
+#set loginterface none
+#set optimization normal
+#set block-policy drop
+#set require-order yes
+#set fingerprints "/etc/pf.os"
+
+# Normalization: reassemble fragments and resolve or reduce traffic ambiguities.
+#scrub in all
+
+# Queueing: rule-based bandwidth control.
+#altq on $ext_if bandwidth 2Mb cbq queue { dflt, developers, marketing }
+#queue dflt bandwidth 5% cbq(default)
+#queue developers bandwidth 80%
+#queue marketing  bandwidth 15%
+
+# Translation: specify how addresses are to be mapped or redirected.
+# nat: packets going out through $ext_if with source address $internal_net will
+# get translated as coming from the address of $ext_if, a state is created for
+# such packets, and incoming packets will be redirected to the internal address.
+#nat on $ext_if from $internal_net to any -> ($ext_if)
+
+# rdr: packets coming in on $ext_if with destination $external_addr:1234 will
+# be redirected to 10.1.1.1:5678. A state is created for such packets, and
+# outgoing packets will be translated as coming from the external address.
+#rdr on $ext_if proto tcp from any to $external_addr/32 port 1234 -> 10.1.1.1 port 5678
+
+# rdr outgoing FTP requests to the ftp-proxy
+#rdr on $int_if proto tcp from any to any port ftp -> 127.0.0.1 port 8021
+
+# spamd-setup puts addresses to be redirected into table <spamd>.
+#table <spamd> persist
+#no rdr on { lo0, lo1 } from any to any
+#rdr inet proto tcp from <spamd> to any port smtp -> 127.0.0.1 port 8025
+
+# Filtering: the implicit first two rules are
+#pass in all
+#pass out all
+
+# block all incoming packets but allow ssh, pass all outgoing tcp and udp
+# connections and keep state, logging blocked packets.
+#block in log all
+#pass  in  on $ext_if proto tcp from any to $ext_if port 22 keep state
+#pass  out on $ext_if proto { tcp, udp } all keep state
+
+# pass incoming packets destined to the addresses given in table <foo>.
+#pass in on $ext_if proto { tcp, udp } from any to <foo> port 80 keep state
+
+# pass incoming ports for ftp-proxy
+#pass in on $ext_if inet proto tcp from any to $ext_if user proxy keep state
+
+# assign packets to a queue.
+#pass out on $ext_if from 192.168.0.0/24 to any keep state queue developers
+#pass out on $ext_if from 192.168.1.0/24 to any keep state queue marketing