ngircd/contrib/systrace.policy

#
# Sample systrace policy for ngIRCd on OpenBSD
# Author: Benjamin Pineau <ben@zouh.org>
#
# $Id: systrace.policy,v 1.1 2004/04/28 12:16:59 alex Exp $
#
# Tune me, put me in /etc/systrace/usr_local_bin_ngircd and start ngIRCd
# (with root privileges) as:
#
#   systrace -a /usr/local/bin/ngircd
#
# I didn't tried this on NetBSD, but it should work as is.
#
# On systems with pf, it can be supplemented by strict firewall rules:
# for a ngircd running as '$ircuser', binding on '$ircport' and accepting
# 30 connections:
#
#   block out log quick proto tcp from any port $ircport to any \
#    user != $ircuser
#   pass in inet proto tcp from any to any port $ircport user $ircuser \
#    keep state (max 30) flags S/SA
#

Policy: /usr/local/bin/ngircd, Emulation: native
	native-__sysctl: permit
	native-fsread: filename eq "/etc/malloc.conf" then permit
	native-fsread: filename sub "/usr/share/zoneinfo/" then permit
	native-fsread: filename eq "/usr/local/etc/ngircd.conf" then permit
	native-fsread: filename eq "/usr/local/etc/ngircd.motd" then permit
	native-fsread: filename eq "/etc/ngircd.conf" then permit
	native-fsread: filename eq "/etc/ngircd.motd" then permit
	native-fsread: filename eq "/etc/spwd.db" then deny[eperm]
	native-fsread: filename eq "/etc/group" then permit
	native-fsread: filename eq "/etc/resolv.conf" then permit
	native-fsread: filename eq "/etc/localtime" then permit
	native-fsread: filename eq "/etc/hosts" then permit
	native-fsread: filename sub "<non-existent filename>" then deny[enoent]
	native-socket: sockdom eq "AF_UNIX" and socktype eq "SOCK_DGRAM" then permit
	native-socket: sockdom eq "AF_INET" and socktype eq "SOCK_STREAM" then permit
	native-bind: sockaddr match "inet-*:6667" then permit, if user != root
	native-connect: sockaddr eq "/dev/log" then permit, if user != root
	native-connect: sockaddr match "inet-*:53" then permit, if user != root
	native-setsockopt: permit, if user != root
	native-listen: permit, if user != root
	native-accept: permit, if user != root
	native-sendto: true then permit, if user != root
	native-recvfrom: permit, if user != root
	native-read: permit
	native-pread: permit
	native-write: permit, if user != root
	native-mmap: permit
	native-munmap: permit
	native-mprotect: permit
	native-break: permit
	native-umask: permit
	native-fork: permit
	native-setsid: permit
	native-chdir: permit
	native-chroot: permit
	native-setgid: gid neq "0" then permit
	native-setuid: uid neq "0" and uname neq "root" then permit
	native-getuid: permit
	native-getgid: permit
	native-gettimeofday: permit
	native-getpid: permit
	native-select: permit
	native-fcntl: permit
	native-fstat: permit
	native-issetugid: permit
	native-sigaction: permit
	native-pipe: permit
	native-sigreturn: permit
	native-close: permit
	native-exit: permit
	native-fswrite: deny[eperm]

# -eof-