OpenBSD 5.2

Released Nov 1, 2012
Copyright 1997-2012, Theo de Raadt.
ISBN 978-0-9881561-0-4
5.2 Song: "Aquarela do Linux"

• Order a CDROM from our ordering system.
• See the information on The FTP page for a list of mirror machines.
• Go to the pub/OpenBSD/5.2/ directory on one of the mirror sites.
• Briefly read the rest of this document.
• Have a look at The 5.2 Errata page for a list of bugs and workarounds.
• See a detailed log of changes between the 5.1 and 5.2 releases.

All applicable copyrights and credits can be found in the applicable file sources found in the files src.tar.gz, sys.tar.gz, xenocara.tar.gz, or in the files fetched via ports.tar.gz. The distribution files used to build packages from the ports.tar.gz file are not included on the CDROM because of lack of space.

What's New

This is a partial list of new features and systems included in OpenBSD 5.2. For a comprehensive list, see the changelog leading to 5.2.

• pthreads(3) support:
  • The most significant change in this release is the replacement of the user-level uthreads by kernel-level rthreads, allowing multithreaded programs to utilize multiple CPUs/cores.
  • Use PTHREAD_MUTEX_STRICT_NP as default mutex type.
  • Added pthread spinlock and barrier routines.
  • Added pthread_mutex_timedlock(3) and sem_timedwait(3).
  • Added pthread_condattr_setclock(3).
  • Added support for live multi-threaded debugging in gdb(1).
  • Improved handling for rusage totals and interval timers in threaded processes.
  • Changed the RLIMIT_NPROC rlimit to count processes instead of threads.
  • Added a new system limit kern.maxthread for the max number of threads.
  • Closed race conditions in thread creation, and in fork(2) and open(2) in a threaded process.
  • Improved handling of threaded processes in ps(1), top(1), and fstat(1).
  • Changed the lock around dlopen() to be recursive, so that dl*() operations from atexit() handlers don't deadlock.
  • Many fixes to pthread attribute and mutex error checking and cancellation handling.

• Improved hardware support, including:
  • Added hibernation support on i386. Currently only working on pciide(4) and wd(4) disks.
  • Improved support for ALPS based touchpads in wsmouse(4) and the synaptics(4) X.Org input driver.
  • Performance improvements with ix(4) Intel 10Gb Ethernet NICs.
  • Support for i350 based devices in em(4).
  • Flow control support for bnx(4).
  • Hardware watchdog and HPET support for tcpcib(4) (Intel Atom E600) as found in some embedded x86 systems.
  • urndis(4) supports additional Android devices.
  • Support for Winbond W83627UHG has been added to wbsio(4).
  • Support for the SMBus controller of the AMD CS5536 in glxpcib(4) and the NVIDIA MCP89 in nviic(4).
  • Support for AX88772B based devices has been added to axe(4).
  • Support for MCS7832 based devices has been added to mos(4).
  • Support for the Roland UM-ONE has been added to umidi(4).
  • Support for the AMD Hudson-2 chipset has been added to azalia(4) and piixpm(4).
  • Support for NetMos NM9820 cardbus serial cards has been added to com(4).
  • Support for Huawei Mobile E303 has been added to umsm(4).
  • The sgi port now supports the R4000 Indigo (IP20), Indy (IP22), R4000 Indigo2 (IP24) and POWER Indigo2 R10000 (IP28) families.

• Generic network stack improvements:
  • Increased TCP initial window to 14600 bytes as proposed in draft-ietf-tcpm-initcwnd.
  • Cleanup handling of sockaddrs in degenerate use cases.
  • Improved handling of error and limit cases in file descriptor passing.
  • Improved socketbuffer handling for AF_UNIX sockets.
  • Fix yet another file descriptor leak in message passing.
  • Improved error handling in socket splicing.
  • IPv6 privacy addresses now appear alongside SLAAC addresses.
  • Support for Extended Sequence Numbers has been added to the IPsec stack and iked(8).
  • Bridging two IPv4 networks over an IPv6 link with gif(4) is now possible.

• Routing daemons and other userland network improvements:
  • sndiod(1), bgpd(8), dvmrpd(8), ftp-proxy(8), iked(8), iscsid(8), ldapd(8), ldpd(8), nsd(8), ospf6d(8), ospfd(8), relayd(8), ripd(8), snmpd(8), spamd(8), sshd(8), tcpbench(1) and tmux(1) now rate limit their accepting of new connections when experiencing file descriptor exhaustion.
  • Allow route(8) destination/prefixlen syntax for IPv6 routes.
  • ASCII packet dumping support in tcpdump(8).
  • Better etherip and BGP protocol support in tcpdump(8).
  • isakmpd(8) and tcpdump(8) now recognize additional Internet Key Exchange DH groups.
  • Various improvements in iked(8) including support for retransmits.
  • ipsecctl(8) now allows SA lifetimes to be specified in its ipsec.conf(5) file.
  • tftpd(8) rewritten as a persistent, non-blocking daemon.
  • tftp(1) client now supports IPv6.
  • snmpd(8) now supports PF-MIB, UCD-DISKIO-MIB, and additional OIDs in HOST-RESOURCES-MIB.
  • bgpd(8) is now more robust when encountering network instability.
  • Adjust the bgpd(8) route decision code to cover checks needed due to route reflection.
  • Various fixes to improve error reporting in bgpd(8) including support of RFC 6608.
  • For debugging purposes bgpctl(8) can load MRT dumps into bgpd(8).
  • Fixed distribution of MPLS VPN routes in bgpd(8).
  • Introduced a new option "selected" to the bgpctl(8) "show rib" command to show only selected routes.
  • Correctly support the LSA_TYPE_AREA_OPAQ and LSA_TYPE_AS_OPAQ types in ospfd(8).
  • Make relayd(8) able to handle transactions larger than 2GB in size.
  • Various bug fixes and better HTTP standard compliance in relayd(8).
  • rtadvd(8) can now advertise DNS servers and search paths in router advertisements.
  • rtadvd(8) can now send router advertisements with no prefix information using the noifprefix option.
  • ftp(1) client now allows the source IP address of the connection to be specified.
  • ypldap(8) now handles larger directories and is more tolerant when processing groups.
  • Added support for AF_INET6 to inet_net_pton(3) and inet_net_ntop(3).

• pf(4) improvements:
  • pf(4) now ignores/preserves the lower 2 bits of the tos-header (used for Explicit Congestion Notification).
  • Allow more than 16 pflog(4) interfaces.
  • pf(4) now supports weighted least-states load balancing.
  • The prio and tos options are now part of the "set { }" block. See pf.conf(5).
  • Allow setting the tos on IPv6 packets.
  • Better demotion handling in pfsync(4) to prevent failovers without having a full state table.
  • Fixed printing of wildcard anchors in pfctl(8).

• Assorted improvements:
  • Added nginx(8), an HTTP server, reverse proxy server and mail proxy server.
  • Added SQLite 3.7.13, a self-contained SQL database engine.
  • libpcap has been updated with several core functions from tcpdump.org's libpcap-1.2.0 API, without the clutter.
  • Disabled SSLv2 in OpenSSL.
  • Moved libtool(1) into the base system. Much work remains to be done.
  • Removed lint(1).
  • Removed the raid(4) RAIDframe driver and its corresponding raidctl(8) utility. RAIDframe has been superseded by softraid(4).
  • Added posix_spawn(3).
  • Added mbsnrtowcs(3) and wcsnrtombs(3).
  • Added getdelim(3) and getline(3).
  • More configuration variables for sysconf(3) and pathconf(2).
  • dirfd(3) is now a function instead of a macro.
  • posix_memalign(3) supports arbitrarily large alignments.
  • Improved realloc(3) performance.
  • ld.so(1) recognizes the DF_1_NOOPEN flag and refuses to dlopen(3) shared objects linked with "-z nodlopen".
  • Improved compliance and/or cleanliness of header files, particularly <dirent.h>, <time.h>, <sys/time.h>, <limits.h>, <arpa/inet.h>, <netinet/in.h>, and <sys/param.h>.
  • Improved kernel uvm memory allocator.
  • Added support for using AMT to provide console-over-Ethernet (c.f. the amtterm package).
  • Improved support for amd64 systems with many memory extents.
  • compat_linux(8) improvements: TLS-vs-clone and futex fixes, added support for statfs64(), tgkill(), gettid(), SOCK_CLOEXEC, and SOCK_NONBLOCK.
  • kdump(1) improvements, including the ability to show thread IDs and dumping of timespec, timeval, sigaction, rlimit, sigset, clockid, and fdset arguments and results.
  • Various improvements in smtpd(8): reliability fixes, new MTA client, new scheduler and improved queue logic, simplified smtpd.conf(5) syntax, better RFC compliance and several cosmetic changes.
  • The mg(1) emacs-like editor now supports cscope functionality. Also, backup files can now be saved to a user's home directory in addition to the current working directory.
  • Fixed operation of kvm_getfile2() (and therefore fstat(1) and pstat(8)) on kernel crash dumps.
  • Improved emacs-style key bindings and handling of large arrays in ksh(1).
  • halt(8) disables "suspend-on-lid-close" so that you don't accidentally suspend instead of shutting down.
  • Improvements to parallel make(1): added the .CHEAP and .EXPENSIVE special targets and fixed glitches in already-rebuilt logic.
  • The libusb package is able to access non-ugen(4) devices for some operations, allowing e.g. programming YubiKeys with a standard kernel.
  • Various improvements in tmux(1): a new unified tree view to select sessions or windows, new move-pane and renumber-windows commands, a history of pane layouts, simple output rate limiting, and custom formats (-F) have been extended and are now accepted by more commands.
  • fsck_msdos(8) now works on devices with non-512 byte sectors.
  • quotacheck(8) now works with DUID based fstab(5) files.
  • Numerous minor improvement to fdisk(8), including more sanity checking and better default partition sizing on large disks.
  • dhclient(8) now discards trailing NULs in option data, and in general parses option data with more paranoia.
  • Various improvements to dhclient(8) startup and timeout handling.
  • disklabel(8) does a better job of calculating physical memory during partition auto-allocation of devices with non-512 byte sectors.
  • SCSI errors are now correctly propagated to userland, e.g. mount(2) now reports specific errors such as trying to mount RW filesystems from RO media.
  • Improved FAT media handling: autorecognize such media even if the 0x55aa signature is missing and prevent the writing of an OpenBSD disklabel over the FAT data structures.
  • The MS-DOS FAT filesystem implementation gained a significant write speedup for large files (up to twice as fast).

• OpenSSH 6.1:
  • New features:
    • sshd(8): This release turns on pre-auth sandboxing sshd by default for new installs, by setting UsePrivilegeSeparation=sandbox in sshd_config.
    • sshd-keygen(1): Add options to specify starting line number and number of lines to process when screening moduli candidates, allowing processing of different parts of a candidate moduli file in parallel.
    • sshd(8): The Match directive now supports matching on the local (listen) address and port upon which the incoming connection was received via LocalAddress and LocalPort clauses.
    • sshd(8): Extend sshd_config Match directive to allow setting AcceptEnv and {Allow,Deny}{Users,Groups}.
    • Add support for RFC6594 SSHFP DNS records for ECDSA key types. (bz#1978)
    • sshd-keygen(1): Allow conversion of RSA1 keys to public PEM and PKCS8.
    • sshd(8): Allow the sshd_config PermitOpen directive to accept "none" as an argument to refuse all port-forwarding requests.
    • sshd(8): Support "none" as an argument for AuthorizedPrincipalsFile.
    • sshd-keyscan(1): Look for ECDSA keys by default. (bz#1971)
    • sshd(8): Add "VersionAddendum" to sshd_config to allow server operators to append some arbitrary text to the server SSH protocol banner.
  • The following significant bugs have been fixed in this release:
    • sshd(8) and ssh(1): Don't spin in accept() in situations of file descriptor exhaustion. Instead back off for a while.
    • sshd(8) and ssh(1): Remove hmac-sha2-256-96 and hmac-sha2-512-96 MACs as they were removed from the specification. (bz#2023)
    • sshd(8): Handle long comments in config files better. (bz#2025)
    • ssh(1): Delay setting tty_flag so RequestTTY options are correctly picked up. (bz#1995)
    • sshd(8): Fix handling of /etc/nologin incorrectly being applied to root on platforms that use login_cap.

• Over 7600 ports, major performance and stability improvements in the package build process:
  • dpb got simpler and faster. Handles distfiles, works without any options.
  • Simpler and less error-prone mechanisms for handling MD differences.
  • dpb is now used for mirroring distfiles, to the great joy of ftp://ftp.openbsd.org/pub/OpenBSD/distfiles/
  • full databases of all ports available as packages:
    • pkglocatedb - a locate(1) database of all files in all packages
    • sqlports - a sqlite3(1) database of all meta-info for all packages
    • ports-readmes - a tree of html files for browsing thru available packages

• Many pre-built packages for each architecture:

  i386: 7483 sparc64: 6820 alpha: 5993

  sh: 2412 amd64: 7439 powerpc: 7050

  sparc: 4466 arm: 5802 hppa: 6316

  vax: 2279 mips64: 5845 mips64el: 5908

• Some highlights:
  • GNOME 3.4.2
  • KDE 3.5.10
  • Xfce 4.10
  • MySQL 5.1.63
  • PostgreSQL 9.1.4
  • Postfix 2.9.3
  • OpenLDAP 2.3.43 and 2.4.31
  • Mozilla Firefox 3.5.19, 3.6.28 and 13.0.1
  • Mozilla Thunderbird 13.0.1
  • GHC 7.0.4
  • LibreOffice 3.5.5.3
  • Emacs 21.4, 22.3 and 23.4
  • Vim 7.3.154
  • PHP 5.2.17 and 5.3.14
  • Python 2.5.4, 2.7.3 and 3.2.3
  • Ruby 1.8.7.370 and 1.9.3.194
  • Tcl/Tk 8.5.11
  • Jdk 1.7
  • Mono 2.10.9
  • Chromium 20.0.1132.57
  • Groff 1.21
  • Go 1.0.2
  • GCC 4.6.3 and 4.7.1
  • LLVM/Clang 3.1
  • Lua 5.1.5 and 5.2.1

• As usual, steady improvements in manual pages and other documentation.

• The system includes the following major components from outside suppliers:
  • Xenocara (based on X.Org 7.7 with xserver 1.12.2 + patches, freetype 2.4.10, fontconfig 2.8.0, Mesa 7.10.3, xterm 279, xkeyboard-config 2.6 and more)
  • Gcc 4.2.1 (+ patches) and 2.95.3 (+ patches)
  • Perl 5.12.2 (+ patches)
  • Our improved and secured version of Apache 1.3, with SSL/TLS and DSO support
  • Nginx 1.2.2 (+ patches)
  • OpenSSL 1.0.0f (+ patches)
  • SQLite 3.7.13 (+ patches)
  • Sendmail 8.14.5, with libmilter
  • Bind 9.4.2-P2 (+ patches)
  • NSD 3.2.11
  • Lynx 2.8.7rel.2 with HTTPS and IPv6 support (+ patches)
  • Sudo 1.7.2p8
  • Ncurses 5.7
  • Heimdal 0.7.2 (+ patches)
  • Arla 0.35.7
  • Binutils 2.15 (+ patches)
  • Gdb 6.3 (+ patches)
  • Less 444 (+ patches)
  • Awk Aug 10, 2011 version

How to install

Following this are the instructions which you would have on a piece of paper if you had purchased a CDROM set instead of doing an alternate form of install. The instructions for doing an FTP (or other style of) install are very similar; the CDROM instructions are left intact so that you can see how much easier it would have been if you had purchased a CDROM instead.

• CD1:5.2/i386/INSTALL.i386

• CD2:5.2/amd64/INSTALL.amd64

• CD3:5.2/sparc64/INSTALL.sparc64

• FTP:.../OpenBSD/5.2/alpha/INSTALL.alpha
• FTP:.../OpenBSD/5.2/armish/INSTALL.armish
• FTP:.../OpenBSD/5.2/hp300/INSTALL.hp300
• FTP:.../OpenBSD/5.2/hppa/INSTALL.hppa
• FTP:.../OpenBSD/5.2/landisk/INSTALL.landisk
• FTP:.../OpenBSD/5.2/loongson/INSTALL.loongson
• FTP:.../OpenBSD/5.2/luna88k/INSTALL.luna88k
• FTP:.../OpenBSD/5.2/macppc/INSTALL.macppc
• FTP:.../OpenBSD/5.2/mvme68k/INSTALL.mvme68k
• FTP:.../OpenBSD/5.2/mvme88k/INSTALL.mvme88k
• FTP:.../OpenBSD/5.2/sgi/INSTALL.sgi
• FTP:.../OpenBSD/5.2/socppc/INSTALL.socppc
• FTP:.../OpenBSD/5.2/sparc/INSTALL.sparc
• FTP:.../OpenBSD/5.2/vax/INSTALL.vax
• FTP:.../OpenBSD/5.2/zaurus/INSTALL.zaurus

Quick installer information for people familiar with OpenBSD, and the use of the "disklabel -E" command. If you are at all confused when installing OpenBSD, read the relevant INSTALL.* file as listed above!

OpenBSD/i386:

Play with your BIOS options to enable booting from a CD. The OpenBSD/i386 release is on CD1. If your BIOS does not support booting from CD, you will need to create a boot floppy to install from. To create a boot floppy write CD1:5.2/i386/floppy52.fs to a floppy and boot via the floppy drive.

Use CD1:5.2/i386/floppyB52.fs instead for greater SCSI controller support, or CD1:5.2/i386/floppyC52.fs for better laptop support.

If you can't boot from a CD or a floppy disk, you can install across the network using PXE as described in the included INSTALL.i386 document.

If you are planning on dual booting OpenBSD with another OS, you will need to read INSTALL.i386.

To make a boot floppy under MS-DOS, use the "rawrite" utility located at CD1:5.2/tools/rawrite.exe. To make the boot floppy under a Unix OS, use the dd(1) utility. The following is an example usage of dd(1), where the device could be "floppy", "rfd0c", or "rfd0a".

# dd if=<file> of=/dev/<device> bs=32k

Make sure you use properly formatted perfect floppies with NO BAD BLOCKS or your install will most likely fail. For more information on creating a boot floppy and installing OpenBSD/i386 please refer to FAQ 4.3.2.

OpenBSD/amd64:

The 5.2 release of OpenBSD/amd64 is located on CD2. Boot from the CD to begin the install - you may need to adjust your BIOS options first. If you can't boot from the CD, you can create a boot floppy to install from. To do this, write CD2:5.2/amd64/floppy52.fs to a floppy, then boot from the floppy drive.

If you can't boot from a CD or a floppy disk, you can install across the network using PXE as described in the included INSTALL.amd64 document.

If you are planning to dual boot OpenBSD with another OS, you will need to read INSTALL.amd64.

OpenBSD/macppc:

Burn the image from the FTP site to a CDROM, and poweron your machine while holding down the C key until the display turns on and shows OpenBSD/macppc boot.

Alternatively, at the Open Firmware prompt, enter boot cd:,ofwboot /5.2/macppc/bsd.rd

OpenBSD/sparc64:

Put CD3 in your CDROM drive and type boot cdrom.

If this doesn't work, or if you don't have a CDROM drive, you can write CD3:5.2/sparc64/floppy52.fs or CD3:5.2/sparc64/floppyB52.fs (depending on your machine) to a floppy and boot it with boot floppy. Refer to INSTALL.sparc64 for details.

Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install will most likely fail.

You can also write CD3:5.2/sparc64/miniroot52.fs to the swap partition on the disk and boot with boot disk:b.

If nothing works, you can boot over the network as described in INSTALL.sparc64.

OpenBSD/alpha:

Write FTP:5.2/alpha/floppy52.fs or FTP:5.2/alpha/floppyB52.fs (depending on your machine) to a diskette and enter boot dva0. Refer to INSTALL.alpha for more details.

Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install will most likely fail.

OpenBSD/armish:

After connecting a serial port, Thecus can boot directly from the network either tftp or http. Configure the network using fconfig, reset, then load bsd.rd, see INSTALL.armish for specific details. IOData HDL-G can only boot from an EXT-2 partition. Boot into linux and copy 'boot' and bsd.rd into the first partition on wd0 (hda1) then load and run bsd.rd, preserving the wd0i (hda1) ext2fs partition. More details are available in INSTALL.armish.

OpenBSD/hp300:

Boot over the network by following the instructions in INSTALL.hp300.

OpenBSD/hppa:

Boot over the network by following the instructions in INSTALL.hppa or the hppa platform page.

OpenBSD/landisk:

Write miniroot52.fs to the start of the CF or disk, and boot normally.

OpenBSD/loongson:

Write miniroot52.fs to a USB stick and boot bsd.rd from it or boot bsd.rd via tftp. Refer to the instructions in INSTALL.loongson for more details.

OpenBSD/luna88k:

Copy bsd.rd to a Mach or UniOS partition, and boot it from the PROM. Alternatively, you can create a bootable tape and boot from it. Refer to the instructions in INSTALL.luna88k for more details.

OpenBSD/mvme68k:

You can create a bootable installation tape or boot over the network.
The network boot requires a MVME68K BUG version that supports the NIOT and NBO debugger commands. Follow the instructions in INSTALL.mvme68k for more details.

OpenBSD/mvme88k:

You can create a bootable installation tape or boot over the network.
The network boot requires a MVME88K BUG version that supports the NIOT and NBO debugger commands. Follow the instructions in INSTALL.mvme88k for more details.

OpenBSD/sgi:

To install on an O2, burn cd52.iso on a CD-R, put it in the CD drive of your machine and select Install System Software from the System Maintenance menu.

On other systems, or if your machine doesn't have a CD drive, you can setup a DHCP/tftp network server, and boot using "bootp()/bsd.rd.IP##" using the kernel matching your system type. Refer to the instructions in INSTALL.sgi for more details.

OpenBSD/socppc:

After connecting a serial port, boot over the network via DHCP/tftp. Refer to the instructions in INSTALL.socppc for more details.

OpenBSD/sparc:

Boot from one of the provided install ISO images, using one of the two commands listed below, depending on the version of your ROM.

ok boot cdrom 5.2/sparc/bsd.rd
or
> b sd(0,6,0)5.2/sparc/bsd.rd

If your SPARC system does not have a CD drive, you can alternatively boot from floppy. To do so you need to write floppy52.fs to a floppy. For more information see FAQ 4.3.2. To boot from the floppy use one of the two commands listed below, depending on the version of your ROM.

ok boot floppy
or
> b fd()

Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install will most likely fail.

If your SPARC system doesn't have a floppy drive nor a CD drive, you can either setup a bootable tape, or install via network, as told in the INSTALL.sparc file.

OpenBSD/vax:

Boot over the network via mopbooting as described in INSTALL.vax.

OpenBSD/zaurus:

Using the Linux built-in graphical ipkg installer, install the openbsd52_arm.ipk package. Reboot, then run it. Read INSTALL.zaurus for a few important details.

Notes about the source code:

src.tar.gz contains a source archive starting at /usr/src. This file contains everything you need except for the kernel sources, which are in a separate archive. To extract:

# mkdir -p /usr/src
# cd /usr/src
# tar xvfz /tmp/src.tar.gz

sys.tar.gz contains a source archive starting at /usr/src/sys. This file contains all the kernel sources you need to rebuild kernels. To extract:

# mkdir -p /usr/src/sys
# cd /usr/src
# tar xvfz /tmp/sys.tar.gz

Both of these trees are a regular CVS checkout. Using these trees it is possible to get a head-start on using the anoncvs servers as described here. Using these files results in a much faster initial CVS update than you could expect from a fresh checkout of the full OpenBSD source tree.

How to upgrade

If you already have an OpenBSD 5.1 system, and do not want to reinstall, upgrade instructions and advice can be found in the Upgrade Guide.

Ports Tree

A ports tree archive is also provided. To extract:

# cd /usr
# tar xvfz /tmp/ports.tar.gz
# cd ports

The ports/ subdirectory is a checkout of the OpenBSD ports tree. Go read the ports page if you know nothing about ports at this point. This text is not a manual of how to use ports. Rather, it is a set of notes meant to kickstart the user on the OpenBSD ports system.

The ports/ directory represents a CVS (see the manpage for cvs(1) if you aren't familiar with CVS) checkout of our ports. As with our complete source tree, our ports tree is available via anoncvs. So, in order to keep current with it, you must make the ports/ tree available on a read-write medium and update the tree with a command like:

# cd [portsdir]/; cvs -d anoncvs@server.openbsd.org:/cvs update -Pd -rOPENBSD_5_2

[Of course, you must replace the local directory and server name here with the location of your ports collection and a nearby anoncvs server.]

Note that most ports are available as packages through FTP. Updated packages for the 5.2 release will be made available if problems arise.

If you're interested in seeing a port added, would like to help out, or just would like to know more, the mailing list ports@openbsd.org is a good place to know.