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- #
- # 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-
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