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version 1.73, 2016/10/16 19:11:29

version 1.74, 2017/06/26 17:18:57

Line 46

<li>See a <a href="plus60.html">detailed log of changes</a> between the

5.9 and 6.0 releases.

<li><a href="http://man.openbsd.org/signify.1">signify(1)</a>

<li><a href="https://man.openbsd.org/signify.1">signify(1)</a>

pubkeys for this release:

<pre>

base: RWSho3oKSqgLQy+NpIhFXZJDtkE65tzlmtC24mStf8DoJd2OPMgna4u8

Line 90

<li>Improved hardware support, including:

<ul>

<li>New <a href="http://man.openbsd.org/?query=bytgpio">bytgpio(4)</a>

<li>New <a href="https://man.openbsd.org/?query=bytgpio">bytgpio(4)</a>

driver for the Intel Bay Trail GPIO controller.

<li>New <a href="http://man.openbsd.org/?query=chvgpio">chvgpio(4)</a>

<li>New <a href="https://man.openbsd.org/?query=chvgpio">chvgpio(4)</a>

driver for the Intel Cherry View GPIO controller.

<li>New <a href="http://man.openbsd.org/?query=maxrtc">maxrtc(4)</a>

<li>New <a href="https://man.openbsd.org/?query=maxrtc">maxrtc(4)</a>

driver for the Maxim DS1307 real time clock.

driver for the Non-Volatile Memory Express (NVMe) host controller interface.

<li>New <a href="http://man.openbsd.org/?query=pcfrtc">pcfrtc(4)</a>

<li>New <a href="https://man.openbsd.org/?query=pcfrtc">pcfrtc(4)</a>

driver for the NXP PCF8523 real time clock.

driver for the Mobile Broadband Interface Model (MBIM).

driver for RealTek RTL8152 based 10/100 USB Ethernet devices.

<li>New <a href="http://man.openbsd.org/?query=utvfu">utvfu(4)</a>

<li>New <a href="https://man.openbsd.org/?query=utvfu">utvfu(4)</a>

driver for audio/video capture devices based on the Fushicai USBTV007.

<li>The <a href="http://man.openbsd.org/?query=iwm">iwm(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=iwm">iwm(4)</a> driver

now supports Intel Wireless 3165 and 8260 devices, and works more

reliably in RAMDISK kernels.

<li>Support for I2C HID devices with GPIO signalled interrupts has

been added to <a href="http://man.openbsd.org/?query=dwiic">dwiic(4)</a>.

been added to <a href="https://man.openbsd.org/?query=dwiic">dwiic(4)</a>.

<li>Support for larger bus widths, high speed modes, and DMA

transfers has been added to

<a href="http://man.openbsd.org/?query=sdmmc">sdmmc(4)</a>,

<a href="https://man.openbsd.org/?query=sdmmc">sdmmc(4)</a>,

<a href="http://man.openbsd.org/?query=rtsx">rtsx(4)</a>,

<a href="https://man.openbsd.org/?query=rtsx">rtsx(4)</a>,

<a href="http://man.openbsd.org/?query=sdhc">sdhc(4)</a>, and

<a href="https://man.openbsd.org/?query=sdhc">sdhc(4)</a>, and

<a href="http://man.openbsd.org/?query=imxesdhc">imxesdhc(4)</a>.

<a href="https://man.openbsd.org/?query=imxesdhc">imxesdhc(4)</a>.

<li>Support for EHCI and OHCI compliant USB controllers on Octeon II SoCs.

<li>Many USB device drivers have been enabled on OpenBSD/octeon.

<li>Improved support for hardware-reduced ACPI implementations.

Line 124

<li>AES-NI crypto is now done without holding the kernel lock.

<li>Improved AGP support on PowerPC G5 machines.

<li>Added support for the SD card slot in Intel Bay Trail SoCs.

<li>The <a href="http://man.openbsd.org/?query=ichiic">ichiic(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=ichiic">ichiic(4)</a> driver

now ignores the SMBALERT# interrupt to prevent an interrupt storm

with buggy BIOS implementations.

<li>Device attachment problems with the

<a href="http://man.openbsd.org/?query=axen">axen(4)</a> driver have

<a href="https://man.openbsd.org/?query=axen">axen(4)</a> driver have

been fixed.

<li>The <a href="http://man.openbsd.org/?query=ral">ral(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=ral">ral(4)</a> driver

is more stable under load with RT2860 devices.

<li>Problems with dead keyboards after resume have been fixed in the

<a href="http://man.openbsd.org/?query=pckbd">pckbd(4)</a> driver.

<a href="https://man.openbsd.org/?query=pckbd">pckbd(4)</a> driver.

<li>The <a href="http://man.openbsd.org/?query=rtsx">rtsx(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=rtsx">rtsx(4)</a> driver

now supports RTS522A devices.

<li>Initial support for MSI-X has been added.

<li>Support MSI-X in the

<a href="http://man.openbsd.org/?query=virtio">virtio(4)</a> driver.

<a href="https://man.openbsd.org/?query=virtio">virtio(4)</a> driver.

<li>Added a workaround for hardware DMA overruns to the

<a href="http://man.openbsd.org/man4/dc.4">dc(4)</a> driver.

<a href="https://man.openbsd.org/man4/dc.4">dc(4)</a> driver.

<li>The <a href="http://man.openbsd.org/?query=acpitz">acpitz(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=acpitz">acpitz(4)</a> driver

now spins the fan down after cooling if ACPI uses hysteresis for

active cooling.

<li>The <a href="http://man.openbsd.org/?query=xhci">xhci(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=xhci">xhci(4)</a> driver

now performs handoff from an xHCI-capable BIOS correctly.

<li>Support for multi-touch input has been added to the

<a href="http://man.openbsd.org/?query=wsmouse">wsmouse(4)</a> driver.

<a href="https://man.openbsd.org/?query=wsmouse">wsmouse(4)</a> driver.

<li>The <a href="http://man.openbsd.org/?query=uslcom">uslcom(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=uslcom">uslcom(4)</a> driver

now supports the serial console of Aruba 7xxx wireless controllers.

<li>The <a href="http://man.openbsd.org/?query=re">re(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=re">re(4)</a> driver

now works around broken LED configurations in APU1 EEPROMs.

<li>The <a href="http://man.openbsd.org/?query=ehci">ehci(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=ehci">ehci(4)</a> driver

now works around problems with ATI USB controllers (e.g. SB700).

<li>The <a href="http://man.openbsd.org/?query=xen">xen(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=xen">xen(4)</a> driver

now supports domU configuration under Qubes OS.

</ul>

Line 163

<ul>

<li>The HT block ack receive buffer logic follows the algorithm given

in the 802.11-2012 spec more closely.

<li>The <a href="http://man.openbsd.org/?query=iwn">iwn(4)</a> driver now

<li>The <a href="https://man.openbsd.org/?query=iwn">iwn(4)</a> driver now

keeps track of HT protection changes while associated to an 11n AP.

<li>The wireless stack and several drivers make more aggressive use

of RTS/CTS to avoid interference from legacy devices and hidden nodes.

<li>The <a href="http://man.openbsd.org/?query=netstat">netstat(1)</a> -W

<li>The <a href="https://man.openbsd.org/?query=netstat">netstat(1)</a> -W

command now shows information about 802.11n events.

<li>In hostap mode, do not reuse association IDs of nodes which are

still cached. Fixes a problem where an access point using the

<a href="http://man.openbsd.org/?query=ral">ral(4)</a> driver

<a href="https://man.openbsd.org/?query=ral">ral(4)</a> driver

would get stuck at 1 Mbps because Tx rate accounting happened

on the wrong node object.

</ul>

Line 186

forwarding path.

<li>The prio field on VLAN headers is now correctly set on each fragment

of an IPv4 packet going out on a

<a href="http://man.openbsd.org/vlan.4">vlan(4)</a> interface.

<a href="https://man.openbsd.org/vlan.4">vlan(4)</a> interface.

<li>Enabled device cloning for

<a href="http://man.openbsd.org/bpf.4">bpf(4)</a>.

<a href="https://man.openbsd.org/bpf.4">bpf(4)</a>.

This allows the system to have just one bpf device node in /dev

that services all bpf consumers (up to 1024).

<li>The Tx queue of the

<a href="http://man.openbsd.org/?query=cnmac">cnmac(4)</a>

<a href="https://man.openbsd.org/?query=cnmac">cnmac(4)</a>

driver can now be processed in parallel of the rest of the kernel.

<li>Network input path is now run in thread context.

</ul>

Line 202

<ul>

<li>updated list of restricted usercodes

<li>install.sh and upgrade.sh merged into install.sub

<li>update automatically runs <a href="http://man.openbsd.org/sysmerge">sysmerge(8)</a>

<li>update automatically runs <a href="https://man.openbsd.org/sysmerge">sysmerge(8)</a>

in batch mode before

<a href="http://man.openbsd.org/fw_update">fw_update(1)</a>

<a href="https://man.openbsd.org/fw_update">fw_update(1)</a>

<li>questions and answers are logged in a format that can be used as a

response file for use by

<a href="http://man.openbsd.org/autoinstall">autoinstall(8)</a>

<a href="https://man.openbsd.org/autoinstall">autoinstall(8)</a>

<li><tt>/usr/local</tt> is set to <tt>wxallowed</tt> during install

</ul>

Line 215

<li>Routing daemons and other userland network improvements:

<ul>

<li>Add routing table support to

<a href="http://man.openbsd.org/rc.d.8">rc.d(8)</a> and

<a href="https://man.openbsd.org/rc.d.8">rc.d(8)</a> and

<a href="http://man.openbsd.org/rcctl.8">rcctl(8)</a>.

<a href="https://man.openbsd.org/rcctl.8">rcctl(8)</a>.

support service names in addition to port numbers.

<li>Add <tt>-M</tt> and <tt>-m</tt> TTL flags to

<a href="http://man.openbsd.org/nc.1">nc(1)</a>.

<a href="https://man.openbsd.org/nc.1">nc(1)</a>.

<li>Add <tt>AF_UNIX</tt> support to

<a href="http://man.openbsd.org/tcpbench.1">tcpbench(1)</a>.

<a href="https://man.openbsd.org/tcpbench.1">tcpbench(1)</a>.

<li>Fixed a regression in

<a href="http://man.openbsd.org/rarpd.8">rarpd(8)</a>.

<a href="https://man.openbsd.org/rarpd.8">rarpd(8)</a>.

The daemon could hang if it was idle for a long time.

<li>Added the <tt>llprio</tt> option in

<a href="http://man.openbsd.org/ifconfig.8">ifconfig(8)</a>.

<a href="https://man.openbsd.org/ifconfig.8">ifconfig(8)</a>.

<li>Multiple programs that use

have been modified to take advantage of

device cloning by opening <tt>/dev/bpf0</tt> instead of looping

through <tt>/dev/bpf*</tt> devices. These programs include

<a href="http://man.openbsd.org/arp.8">arp(8)</a>,

<a href="https://man.openbsd.org/arp.8">arp(8)</a>,

<a href="http://man.openbsd.org/dhclient.8">dhclient(8)</a>,

<a href="https://man.openbsd.org/dhclient.8">dhclient(8)</a>,

<a href="http://man.openbsd.org/dhcpd.8">dhcpd(8)</a>,

<a href="https://man.openbsd.org/dhcpd.8">dhcpd(8)</a>,

<a href="http://man.openbsd.org/dhcrelay.8">dhcrelay(8)</a>,

<a href="https://man.openbsd.org/dhcrelay.8">dhcrelay(8)</a>,

<a href="http://man.openbsd.org/hostapd.8">hostapd(8)</a>,

<a href="https://man.openbsd.org/hostapd.8">hostapd(8)</a>,

<a href="http://man.openbsd.org/mopd.8">mopd(8)</a>,

<a href="https://man.openbsd.org/mopd.8">mopd(8)</a>,

<a href="http://man.openbsd.org/npppd.8">npppd(8)</a>,

<a href="https://man.openbsd.org/npppd.8">npppd(8)</a>,

<a href="http://man.openbsd.org/rarpd.8">rarpd(8)</a>,

<a href="https://man.openbsd.org/rarpd.8">rarpd(8)</a>,

<a href="http://man.openbsd.org/rbootd.8">rbootd(8)</a>, and

<a href="https://man.openbsd.org/rbootd.8">rbootd(8)</a>, and

<a href="http://man.openbsd.org/tcpdump.8">tcpdump(8)</a>.

<a href="https://man.openbsd.org/tcpdump.8">tcpdump(8)</a>.

The <a href="http://man.openbsd.org/pcap.3">libpcap</a> library

The <a href="https://man.openbsd.org/pcap.3">libpcap</a> library

has also been modified accordingly.

</ul>

Line 255

a program can only violate it if the executable is marked with

<tt>PT_OPENBSD_WXNEEDED</tt> and is located on a filesystem

mounted with the <tt>wxallowed</tt>

<a href="http://man.openbsd.org/mount.8">mount(8)</a> option.

<a href="https://man.openbsd.org/mount.8">mount(8)</a> option.

Because there are still too many ports which violate W^X, the

installer mounts the <tt>/usr/local</tt> filesystem with

<tt>wxallowed</tt>. This allows the base system to be more

secure as long as <tt>/usr/local</tt> is a separate filesystem.

If you use no W^X violating programs, consider manually

revoking that option.

<li>The <a href="http://man.openbsd.org/setjmp.3">setjmp(3)</a>

<li>The <a href="https://man.openbsd.org/setjmp.3">setjmp(3)</a>

family of functions now apply XOR cookies to stack and return-address

values in the jmpbuf on amd64, hppa, i386, mips64, and powerpc.

<li>SROP mitigation: <a href="http://man.openbsd.org/sigreturn.2">sigreturn(2)</a>

<li>SROP mitigation: <a href="https://man.openbsd.org/sigreturn.2">sigreturn(2)</a>

can now only be used by the kernel-provided signal trampoline,

with a cookie to detect attempts to reuse it.

<li>To deter code reuse exploits, <a href="http://man.openbsd.org/rc.8">rc(8)</a>

<li>To deter code reuse exploits, <a href="https://man.openbsd.org/rc.8">rc(8)</a>

re-links libc.so on startup, placing the objects in a random order.

<li>In the <a href="http://man.openbsd.org/getpwnam.3">getpwnam(3)</a>

<li>In the <a href="https://man.openbsd.org/getpwnam.3">getpwnam(3)</a>

family of functions, stop opening the shadow database by default.

<li>Allow <a href="http://man.openbsd.org/tcpdump.8">tcpdump(8)</a>

<li>Allow <a href="https://man.openbsd.org/tcpdump.8">tcpdump(8)</a>

<tt>-r</tt> to be started without root privileges.

<li>Remove

<a href="http://man.openbsd.org/OpenBSD-5.9/systrace">systrace</a>.

<a href="https://man.openbsd.org/OpenBSD-5.9/systrace">systrace</a>.

<li>Remove Linux emulation support.

<li>Remove support for the usermount option.

<li>The TCP SYN cache reseeds its random hash function from

Line 284

of the hash function with a timing attack.

<li>To work against SYN flooding attacks the administrator can

change the size of the hash array now.

<a href="http://man.openbsd.org/netstat.1">netstat(1)</a>

<a href="https://man.openbsd.org/netstat.1">netstat(1)</a>

<tt>-s -p tcp</tt> shows the relevant information to tune

the SYN cache with

<a href="http://man.openbsd.org/sysctl.8">sysctl(8)</a>

<a href="https://man.openbsd.org/sysctl.8">sysctl(8)</a>

<tt>net.inet.tcp</tt>.

<li>The administrator can require root privileges for binding to some TCP

and UDP ports with

<a href="http://man.openbsd.org/sysctl.8">sysctl(8)</a>

<a href="https://man.openbsd.org/sysctl.8">sysctl(8)</a>

<tt>net.inet.tcp.rootonly</tt> and

<a href="http://man.openbsd.org/sysctl.8">sysctl(8)</a>

<a href="https://man.openbsd.org/sysctl.8">sysctl(8)</a>

<tt>net.inet.udp.rootonly</tt>.

<li>Remove a function pointer from the

<a href="http://man.openbsd.org/mbuf.9">mbuf(9)</a> data structure

<a href="https://man.openbsd.org/mbuf.9">mbuf(9)</a> data structure

and use an index into an array of acceptable functions instead.

</ul>

Line 307

<li>Improved symbol handling and standards compliance in libc.

For example, defining an <tt>open()</tt> function will no longer

interfere with the operation of

<a href="http://man.openbsd.org/fopen.3">fopen(3)</a>.

<a href="https://man.openbsd.org/fopen.3">fopen(3)</a>.

<li><tt>PT_TLS</tt> sections are now supported in initially loaded object.

<li>Improved handling of "no paths" and "empty path" in

<a href="http://man.openbsd.org/fts.3">fts(3)</a>.

<a href="https://man.openbsd.org/fts.3">fts(3)</a>.

<li>In <a href="http://man.openbsd.org/pcap.3">pcap(3)</a>,

<li>In <a href="https://man.openbsd.org/pcap.3">pcap(3)</a>,

provide the functions <tt>pcap_free_datalinks()</tt>

and <tt>pcap_offline_filter()</tt>.

<li>Many bugfixes and structural cleanup in the

<a href="http://man.openbsd.org/editline">editline(3)</a> library.

<a href="https://man.openbsd.org/editline">editline(3)</a> library.

<li>Remove ancient

functions;

<a href="http://man.openbsd.org/ndbm.3">ndbm(3)</a> remains.

<a href="https://man.openbsd.org/ndbm.3">ndbm(3)</a> remains.

<li>Add <tt>setenv</tt> keyword for more powerful environment handling in

<a href="http://man.openbsd.org/doas.conf.5">doas.conf(5)</a>.

<a href="https://man.openbsd.org/doas.conf.5">doas.conf(5)</a>.

<li>Add <tt>-g</tt> and <tt>-p</tt> options to

<a href="http://man.openbsd.org/aucat.1">aucat.1</a>

<a href="https://man.openbsd.org/aucat.1">aucat.1</a>

for time positioning.

<li>Rewrite <a href="http://man.openbsd.org/audioctl.1">audioctl(1)</a>

<li>Rewrite <a href="https://man.openbsd.org/audioctl.1">audioctl(1)</a>

with a simpler user interface.

<li>Add <tt>-F</tt> option to

<a href="http://man.openbsd.org/install.1">install(1)</a>

<a href="https://man.openbsd.org/install.1">install(1)</a>

to <a href="http://man.openbsd.org/fsync.2">fsync(2)</a>

to <a href="https://man.openbsd.org/fsync.2">fsync(2)</a>

the file before closing it.

<li><a href="http://man.openbsd.org/kdump.1">kdump(1)</a>

<li><a href="https://man.openbsd.org/kdump.1">kdump(1)</a>

now dumps <tt>pollfd</tt> structures.

<li>Improve various details of

<a href="http://man.openbsd.org/ksh.1">ksh(1)</a> POSIX compliance.

<a href="https://man.openbsd.org/ksh.1">ksh(1)</a> POSIX compliance.

<li><a href="http://man.openbsd.org/mknod.8">mknod(8)</a> rewritten in a

<li><a href="https://man.openbsd.org/mknod.8">mknod(8)</a> rewritten in a

<a href="http://man.openbsd.org/pledge.2">pledge(2)</a>-friendly

<a href="https://man.openbsd.org/pledge.2">pledge(2)</a>-friendly

style and to support creating multiple devices at once.

<li>Implement <a href="http://man.openbsd.org/rcctl.8">rcctl(8)</a>

<li>Implement <a href="https://man.openbsd.org/rcctl.8">rcctl(8)</a>

<tt>get all</tt> and <tt>getdef all</tt>.

<li>Implement the <a href="http://man.openbsd.org/rcs.1">rcs(1)</a>

<li>Implement the <a href="https://man.openbsd.org/rcs.1">rcs(1)</a>

<tt>-I</tt> (interactive) flag.

<li>In <a href="http://man.openbsd.org/rcs.1">rcs(1)</a>,

<li>In <a href="https://man.openbsd.org/rcs.1">rcs(1)</a>,

implement Mdocdate keyword substitution.

<li>In <a href="http://man.openbsd.org/top.1">top(1)</a>,

<li>In <a href="https://man.openbsd.org/top.1">top(1)</a>,

allow to filter process arguments if they are being displayed.

<li>Added UTF-8 support to

<a href="http://man.openbsd.org/fold.1">fold(1)</a> and

<a href="https://man.openbsd.org/fold.1">fold(1)</a> and

<a href="http://man.openbsd.org/rev.1">rev(1)</a>.

<a href="https://man.openbsd.org/rev.1">rev(1)</a>.

<li>Enable UTF-8 by default in

<a href="http://man.openbsd.org/xterm.1">xterm(1)</a> and

<a href="https://man.openbsd.org/xterm.1">xterm(1)</a> and

<a href="http://man.openbsd.org/pod2man.1">pod2man(1)</a>.

<a href="https://man.openbsd.org/pod2man.1">pod2man(1)</a>.

<li>Filter out non-ASCII characters in

<a href="http://man.openbsd.org/wall.1">wall(1)</a>.

<a href="https://man.openbsd.org/wall.1">wall(1)</a>.

<li>Handle the <a href="http://man.openbsd.org/?apropos=1&query=Ev%3DCOLUMNS">COLUMNS</a>

<li>Handle the <a href="https://man.openbsd.org/?apropos=1&query=Ev%3DCOLUMNS">COLUMNS</a>

environment variable consistently across many programs.

<li>The options <tt>-c</tt> and <tt>-k</tt> allow to provide

TLS client certificates for

<a href="http://man.openbsd.org/syslogd.8">syslogd(8)</a>

<a href="https://man.openbsd.org/syslogd.8">syslogd(8)</a>

on the sending side.

With that the receiving side can verify log messages

are authentic.

Line 367

message to show that some entries is missing.

<li>On OpenBSD/octeon, CPU cache write buffering is enabled

to improve performance.

<li><a href="http://man.openbsd.org/pkg_add.1">pkg_add(1)</a> and

<li><a href="https://man.openbsd.org/pkg_add.1">pkg_add(1)</a> and

<a href="http://man.openbsd.org/pkg_info.1">pkg_info(1)</a> now

<a href="https://man.openbsd.org/pkg_info.1">pkg_info(1)</a> now

understand a notion of branch to ease selection of some popular

packages such as python or php, e.g., say

<tt>pkg_add python%3.4</tt> to select the <tt>3.4</tt> branch,

and use <tt>pkg_info -zm</tt> to get a fuzzy listing with branch

selection suitable for <tt>pkg_add -l</tt>.

<li><a href="http://man.openbsd.org/?query=fdisk">fdisk(8)</a> and

<li><a href="https://man.openbsd.org/?query=fdisk">fdisk(8)</a> and

<a href="http://man.openbsd.org/?query=pdisk">pdisk(8)</a>

<a href="https://man.openbsd.org/?query=pdisk">pdisk(8)</a>

immediately exit unless passed a character special device

correctly tracks the current block count for variable sized blocks

works again

<li><a href="http://man.openbsd.org/?query=softraid">softraid(4)</a> volumes

<li><a href="https://man.openbsd.org/?query=softraid">softraid(4)</a> volumes

can be constructed with disks that have a sector size other than 512 bytes

<li><a href="http://man.openbsd.org/?query=dhclient">dhclient(8)</a>

<li><a href="https://man.openbsd.org/?query=dhclient">dhclient(8)</a>

DECLINE's and discards unused OFFER's.

<li><a href="http://man.openbsd.org/?query=dhclient">dhclient(8)</a>

<li><a href="https://man.openbsd.org/?query=dhclient">dhclient(8)</a>

immediately exits if its interface (e.g. a

<a href="http://man.openbsd.org/?query=bridge">bridge(4)</a>)

<a href="https://man.openbsd.org/?query=bridge">bridge(4)</a>)

returns EAFNOSUPPORT when a packet is sent.

<li><a href="http://man.openbsd.org/?query=httpd">httpd(8)</a> returns

<li><a href="https://man.openbsd.org/?query=httpd">httpd(8)</a> returns

400 Bad Request for HTTP v0.9 requests.

<li>ffs2's lazy node initialization avoids treating random disk data as

an inode

<li><a href="http://man.openbsd.org/?query=fcntl">fcntl(2)</a> invocations

<li><a href="https://man.openbsd.org/?query=fcntl">fcntl(2)</a> invocations

in base programs use the idiom fcntl(n,F_GETFL) instead of fcntl(n,F_GETFL,0)

<li><a href="http://man.openbsd.org/?query=socket">socket(2)</a> and

<li><a href="https://man.openbsd.org/?query=socket">socket(2)</a> and

<a href="http://man.openbsd.org/?query=accept4">accept4(2)</a> invocations

<a href="https://man.openbsd.org/?query=accept4">accept4(2)</a> invocations

in base programs use SOCK_NONBLOCK to eliminate the need for a separate

<a href="http://man.openbsd.org/?query=fcntl">fcntl(2)</a>.

<a href="https://man.openbsd.org/?query=fcntl">fcntl(2)</a>.

<li>tmpfs not enabled by default

<li>the in-kernel semantics of

<a href="http://man.openbsd.org/pledge">pledge(2)</a>

<a href="https://man.openbsd.org/pledge">pledge(2)</a>

were improved in numerous ways.

Highlights include:

a new <tt>chown</tt> promise that allows pledged programs to set

setugid attributes,

a stricter enforcement of the <tt>recvfd</tt> promise and

<a href="http://man.openbsd.org/chroot.2">chroot(2)</a> is no longer

<a href="https://man.openbsd.org/chroot.2">chroot(2)</a> is no longer

allowed for pledged programs.

<li>a number of

<a href="http://man.openbsd.org/pledge">pledge(2)</a>-related bugs

<a href="https://man.openbsd.org/pledge">pledge(2)</a>-related bugs

(missing promises, unintended changes of behavior, crashes) were fixed,

notably in

<a href="http://man.openbsd.org/gzip">gzip(1)</a>,

<a href="https://man.openbsd.org/gzip">gzip(1)</a>,

<a href="http://man.openbsd.org/nc">nc(1)</a>,

<a href="https://man.openbsd.org/nc">nc(1)</a>,

<a href="http://man.openbsd.org/sed">sed(1)</a>,

<a href="https://man.openbsd.org/sed">sed(1)</a>,

<a href="http://man.openbsd.org/skeyinit">skeyinit(1)</a>,

<a href="https://man.openbsd.org/skeyinit">skeyinit(1)</a>,

<a href="http://man.openbsd.org/stty">stty(1)</a>,

<a href="https://man.openbsd.org/stty">stty(1)</a>,

and various disk-related utilities, such as

<a href="http://man.openbsd.org/disklabel">disklabel(8)</a> and

<a href="https://man.openbsd.org/disklabel">disklabel(8)</a> and

<a href="http://man.openbsd.org/fdisk">fdisk(8)</a>.

<a href="https://man.openbsd.org/fdisk">fdisk(8)</a>.

<li>Block size calculation errors in the

<a href="http://man.openbsd.org/?query=audio">audio(4)</a> driver

<a href="https://man.openbsd.org/?query=audio">audio(4)</a> driver

have been fixed.

<li>The <a href="http://man.openbsd.org/?query=usb">usb(4)</a> driver

<li>The <a href="https://man.openbsd.org/?query=usb">usb(4)</a> driver

now caches vendor and product IDs. Fixes an issue where

<a href="http://man.openbsd.org/?query=usbdevs">usbdevs(8)</a> called

<a href="https://man.openbsd.org/?query=usbdevs">usbdevs(8)</a> called

in a loop would cause a USB mass storage device to halt operation.

<li>The <a href="http://man.openbsd.org/?query=rsu">rsu(4)</a> and

<li>The <a href="https://man.openbsd.org/?query=rsu">rsu(4)</a> and

<a href="http://man.openbsd.org/?query=ural">ural(4)</a> drivers

<a href="https://man.openbsd.org/?query=ural">ural(4)</a> drivers

are now working again after they were accidentally broken in 5.9.

</ul>

Line 439

<li>Security:

<ul>

<li>Implement the fork+exec pattern in

<a href="http://man.openbsd.org/smtpd">smtpd(8)</a>.

<a href="https://man.openbsd.org/smtpd">smtpd(8)</a>.

<li>Fix a logic issue in the SMTP state machine that can lead to

an invalid state and result in a crash.

<li>Plug a file-pointer leak that can lead to resource exhaustion

Line 451

<li>The following improvements were brought in this release:

<ul>

<li>Add the <tt>-r</tt> option to the

<a href="http://man.openbsd.org/smtpd">smtpd(8)</a>

<a href="https://man.openbsd.org/smtpd">smtpd(8)</a>

enqueuer for compatibility with mailx.

<li>Add missing date or message-id when listening on the submit

port.

Line 475

<ul>

<li>Security:

<ul>

<li><a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Mitigate a potential denial-of-service attack against the system's

<a href="http://man.openbsd.org/crypt.3">crypt(3)</a>

<a href="https://man.openbsd.org/crypt.3">crypt(3)</a>

function via

<a href="http://man.openbsd.org/sshd.8">sshd(8)</a>.

<a href="https://man.openbsd.org/sshd.8">sshd(8)</a>.

An attacker could send very long passwords that would cause

excessive CPU use in

<a href="http://man.openbsd.org/crypt.3">crypt(3)</a>.

<a href="https://man.openbsd.org/crypt.3">crypt(3)</a>.

now refuses to accept password authentication requests of length

greater than 1024 characters.

<li><a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Mitigate timing differences in password authentication that could be

used to discern valid from invalid account names when long passwords

were sent and particular password hashing algorithms are in use on

the server. CVE-2016-6210.

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>,

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,

<a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Fix observable timing weakness in the CBC padding oracle

countermeasures. Note that CBC ciphers are disabled by default

and only included for legacy compatibility.

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>,

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,

<a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Improve ordering of MAC verification for

Encrypt-then-MAC (EtM) mode transport MAC algorithms to

verify the MAC before decrypting any ciphertext. This removes the

Line 506

</ul>

<li>New/changed features:

<ul>

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Add a <tt>ProxyJump</tt> option and corresponding <tt>-J</tt>

command-line flag to allow simplified indirection through a one or

more SSH bastions or "jump hosts".

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Add an <tt>IdentityAgent</tt> option to allow specifying specific

agent sockets instead of accepting one from the environment.

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Allow <tt>ExitOnForwardFailure</tt> and <tt>ClearAllForwardings</tt>

to be optionally overridden when using <tt>ssh -W</tt>. (bz#2577)

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>,

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,

<a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Implement support for the IUTF8 terminal mode as per

draft-sgtatham-secsh-iutf8-00.

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>,

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,

<a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Add support for additional fixed Diffie-Hellman 2K, 4K

and 8K groups from draft-ietf-curdle-ssh-kex-sha2-03.

<li><a href="http://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>,

<li><a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>,

<a href="http://man.openbsd.org/ssh.1">ssh(1)</a>,

<a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,

<a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

support SHA256 and SHA512 RSA signatures in certificates.

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Add an <tt>Include</tt> directive for

<a href="http://man.openbsd.org/ssh_config.5">ssh_config(5)</a>

<a href="https://man.openbsd.org/ssh_config.5">ssh_config(5)</a>

files.

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Permit UTF-8 characters in pre-authentication banners sent from the

server. (bz#2058)

</ul>

<li>The following significant bugs have been fixed in this release:

<ul>

and <a href="http://man.openbsd.org/sftp.1">sftp(1)</a>,

and <a href="https://man.openbsd.org/sftp.1">sftp(1)</a>,

prevent screwing up terminal settings by escaping bytes

not forming ASCII or UTF-8 characters.

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>,

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,

<a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Reduce the syslog level of some relatively common protocol events

from <tt>LOG_CRIT</tt>. (bz#2585)

<li><a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Refuse <tt>AuthenticationMethods=""</tt> in configurations and accept

<tt>AuthenticationMethods=any</tt> for the default behaviour of not

requiring multiple authentication. (bz#2398)

<li><a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Remove obsolete and misleading <tt>"POSSIBLE BREAK-IN ATTEMPT!"</tt>

message when forward and reverse DNS don't match. (bz#2585)

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Close <tt>ControlPersist</tt> background process stderr except in

debug mode or when logging to syslog. (bz#1988)

<li>misc: Make PROTOCOL description for

direct-streamlocal@openssh.com channel open messages match

deployed code. (bz#2529)

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Deduplicate <tt>LocalForward</tt> and <tt>RemoteForward</tt> entries

to fix failures when both <tt>ExitOnForwardFailure</tt> and

<tt>hostname</tt> canonicalisation are enabled. (bz#2562)

<li><a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Remove fallback from moduli to obsolete "primes" file that was

deprecated in 2001. (bz#2559)

<li><a href="http://man.openbsd.org/sshd_config.5">sshd_config(5)</a>:

<li><a href="https://man.openbsd.org/sshd_config.5">sshd_config(5)</a>:

Correct description of <tt>UseDNS</tt>: it affects ssh hostname

processing for <tt>authorized_keys</tt>, not <tt>known_hosts</tt>.

(bz#2554)

<li><a href="http://man.openbsd.org/ssh.1">ssh(1)</a>:

<li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:

Fix authentication using lone certificate keys in an agent without

corresponding private keys on the filesystem. (bz#2550)

<li><a href="http://man.openbsd.org/sshd.8">sshd(8)</a>:

<li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:

Send <tt>ClientAliveInterval</tt> pings when a time-based

<tt>RekeyLimit</tt> is set; previously keepalive packets were not

being sent. (bz#2252)

Line 589

of NTP peers, avoid constant reconnections when there is a bad NTP

peer.

<li>Removed disabled

<a href="http://man.openbsd.org/hotplug.4">hotplug(4)</a>

<a href="https://man.openbsd.org/hotplug.4">hotplug(4)</a>

sensor support.

<li>Added support for detecting crashes in constraint subprocesses.

<li>Moved the execution of constraints from the ntp process to the

Line 602

<li>Set <tt>MOD_MAXERROR</tt> to avoid unsynced time status when using

ntp_adjtime.

<li>Fixed HTTP Timestamp header parsing to use

<a href="http://man.openbsd.org/strptime.3">strptime(3)</a>

<a href="https://man.openbsd.org/strptime.3">strptime(3)</a>

in a more portable fashion.

<li>Hardened TLS for

constraints, enabling server name verification.

</ul>

Line 621

elements over 16k in size.

<li>Implemented the IETF ChaCha20-Poly1305 cipher suites.

<li>Fixed password prompts from

<a href="http://man.openbsd.org/openssl.1">openssl(1)</a>

<a href="https://man.openbsd.org/openssl.1">openssl(1)</a>

to properly handle ^C.

</ul>

<li>Code improvements:

Line 629

<li>Fixed an nginx compatibility issue by adding an

'<tt>install_sw</tt>' build target.

<li>Changed default

<a href="http://man.openbsd.org/EVP_AEAD_CTX_init.3">EVP_aead_chacha20_poly1305(3)</a>

<a href="https://man.openbsd.org/EVP_AEAD_CTX_init.3">EVP_aead_chacha20_poly1305(3)</a>

implementation to the IETF version, which is now the default.

<li>Reworked error handling in <tt>libtls</tt> so that configuration

errors are more visible.

<li>Added missing error handling around

<a href="http://man.openbsd.org/bn_wexpand.3">bn_wexpand(3)</a>

<a href="https://man.openbsd.org/bn_wexpand.3">bn_wexpand(3)</a>

calls.

<li>Added

<a href="http://man.openbsd.org/explicit_bzero.3">explicit_bzero(3)</a>

<a href="https://man.openbsd.org/explicit_bzero.3">explicit_bzero(3)</a>

calls for freed ASN.1 objects.

<li>Fixed <tt>X509_*set_object</tt> functions to return 0 on allocation

failure.

<li>Deprecated internal use of

<a href="http://man.openbsd.org/EVP_EncryptInit">EVP_[Cipher|Encrypt|Decrypt]_Final</a>.

<a href="https://man.openbsd.org/EVP_EncryptInit">EVP_[Cipher|Encrypt|Decrypt]_Final</a>.

<li>Fixed a problem that prevents the DSA signing algorithm from running

in constant time even if the flag <tt>BN_FLG_CONSTTIME</tt> is set.

<li>Fixed several issues in the OCSP code that could result in the

Line 811

Quick installer information for people familiar with OpenBSD, and the use of

the "<a href="http://man.openbsd.org/disklabel.8">disklabel</a> -E" command.

the "<a href="https://man.openbsd.org/disklabel.8">disklabel</a> -E" command.

If you are at all confused when installing OpenBSD, read the relevant

INSTALL.* file as listed above!