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Update for current events, format police.

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This commit is contained in:
Jordan K. Hubbard 1998-01-22 07:23:44 +00:00
parent 774f324f38
commit b7857f20f3
1 changed files with 121 additions and 117 deletions
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release/sysinstall/help/relnotes.hlp
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@ -25,167 +25,171 @@ Many many bugs fixed and security enhancements made.
KERNEL CHANGES:
The code from 4.4BSD-Lite2 has been (finally) merged.
o The code from 4.4BSD-Lite2 has been (finally) merged.
The SMP (Symmetric MultiProcessing) branch has been merged.
The kernel is mostly non-reentrant as yet, but work is under way.
o The SMP (Symmetric MultiProcessing) branch has been merged.
The kernel is mostly non-reentrant as yet, but work is under way.
Secure RPC is now supported (and usable with NFS et al).
o Secure RPC is now supported (and usable with NFS et al).
Sun's WEBNFS standard is now supported.
o Sun's WEBNFS standard is now supported.
Use the new if_multiaddrs list for multicast addresses rather than the
previous hackery involving struct in_ifaddr and arpcom. Get rid of the
abominable multi_kludge.
o Use the new if_multiaddrs list for multicast addresses rather than the
previous hackery involving struct in_ifaddr and arpcom. Get rid of the
abominable multi_kludge.
The new if_media selection method for ethernet drivers has been brought
in, obtained from Jason Thorpe's implementation for NetBSD.
o The new if_media selection method for ethernet drivers has been brought
in, obtained from Jason Thorpe's implementation for NetBSD.
Multi-session ISO-9660 CD-ROMs are now fully supported. By default, the
last session will be mounted (including for root mounts). For non-root
mounts, mount_cd9660(8) can take an argument to mount a particular
session instead of the default one.
o Multi-session ISO-9660 CD-ROMs are now fully supported. By default, the
last session will be mounted (including for root mounts). For non-root
mounts, mount_cd9660(8) can take an argument to mount a particular
session instead of the default one.
The UPAGES are gone from the per-process address space which allows
complete address space and page table sharing by reference count.
o The UPAGES are gone from the per-process address space which allows
complete address space and page table sharing by reference count.
Newly forked child processes return directly to user mode rather than
return up through the fork() syscall tree. This eliminates the kernel
stack copy at fork time and simplifies certain other internal operations.
It is also needed to support the removal of the UPAGES. (The idea for
this originally came from NetBSD, but we did it for different reasons.)
o Newly forked child processes return directly to user mode rather than
return up through the fork() syscall tree. This eliminates the kernel
stack copy at fork time and simplifies certain other internal operations.
It is also needed to support the removal of the UPAGES. (The idea for
this originally came from NetBSD, but we did it for different reasons.)
vfork() is now fully functional by taking advantage of the new sharing
semantics and a significant speedup has been measured. This can be
disabled via the kern.fast_vfork sysctl variable in case of problems.
Statically linked binaries from older releases and other BSD platforms
are a problem since there was a bug in the 4.4BSD (net2, Lite and Lite2)
popen() implementation. rfork() also has access to these facilities,
intended for supporting kernel assisted threads.
o vfork() is now fully functional by taking advantage of the new sharing
semantics and a significant speedup has been measured. This can be
disabled via the kern.fast_vfork sysctl variable in case of problems.
Statically linked binaries from older releases and other BSD platforms
are a problem since there was a bug in the 4.4BSD (net2, Lite and Lite2)
popen() implementation. rfork() also has access to these facilities,
intended for supporting kernel assisted threads.
With the contribution of Berkeley Software Design, Inc., Jonathan Lemmon,
Mike Smith, Sean Eric Fagan, and John Dyson, VM86 support has been added
to the kernel, and BSD/OS's contributed dosemu has been ported.
o With the contribution of Berkeley Software Design, Inc., Jonathan Lemmon,
Mike Smith, Sean Eric Fagan, and John Dyson, VM86 support has been added
to the kernel, and BSD/OS's contributed dosemu has been ported.
The SA_NOCLDWAIT flags has been implemented, featuring the System V
option where a process can express its wish to never get zombies or
SIGCHLD for dead children.
o The SA_NOCLDWAIT flags has been implemented, featuring the System V
option where a process can express its wish to never get zombies or
SIGCHLD for dead children.
An implementation of poll(2) is in place, the core of which is derived
from the NetBSD implementation. Both the select() and poll() syscalls
use the poll device, file and vnode ops routines.
o An implementation of poll(2) is in place, the core of which is derived
from the NetBSD implementation. Both the select() and poll() syscalls
use the poll device, file and vnode ops routines.
An implementation of issetugid(2) that is similar to the OpenBSD call
of the same name. We set the flag in more cases than OpenBSD - our
implementation is slightly more paranoid.
o An implementation of issetugid(2) that is similar to the OpenBSD call
of the same name. We set the flag in more cases than OpenBSD - our
implementation is slightly more paranoid.
Async IO is implemented (under non-SMP at this stage) with additional
support for kernel assisted threads.
o Async IO is implemented (under non-SMP at this stage) with additional
support for kernel assisted threads.
Some other misc syscalls for compatability with other systems: getsid(2),
setpgid(2), nanosleep(2).
o Some other misc syscalls for compatability with other systems: getsid(2),
setpgid(2), nanosleep(2).
A new syscall signanosleep(2) which is like nanosleep(2), but a specific
signal mask is used to determine which signals will wake the sleep. In
a nutshell this is 'wait for a given set of signals for up to a certain
amount of time'.
o A new syscall signanosleep(2) which is like nanosleep(2), but a specific
signal mask is used to determine which signals will wake the sleep. In
a nutshell this is 'wait for a given set of signals for up to a certain
amount of time'.
sleep(3) and usleep(3) are now implemented in terms of signanosleep(2)
and now have correct SIGALRM interaction semantics and sleep(3) correctly
returns the time remaining. Some programs (notably apache httpd) bogusly
depend on a sleep() "absorbing" a SIGALRM from a timer that expires during
the life of the sleep.
o sleep(3) and usleep(3) are now implemented in terms of signanosleep(2)
and now have correct SIGALRM interaction semantics and sleep(3) correctly
returns the time remaining. Some programs (notably apache httpd) bogusly
depend on a sleep() "absorbing" a SIGALRM from a timer that expires during
the life of the sleep.
An in-kernel linker is implemented and intended to replace the lkm system
with the bogosity that goes with it.
o An in-kernel linker is implemented and intended to replace the lkm system
with the bogosity that goes with it.
All supported network protocols have been updated to avoid the ``big
switch'' pr_usrreq(), and to pass a process pointer down to each user
request that might need process credentials or want to sleep,
replacing the previous hodgepodge of inspecting curproc (which only
occasionally did the right thing) and the SS_PRIV socket state flag.
The latter has now been eliminated, along with the SO_PRIVSTATE socket
option which cleared it. Protocols are now also given the opportunity
to override the generic send, receive, and poll routines, which will
make it possible for a more efficient, protocol-specific
implementation of these entry points in later releases. Finally, many
parts of the network code have been modified to cease storing socket
addresses and other metainformation in mbufs, in preparation for the
eventual elimination thereof. The mechanism by which socket addresses
are now returned is still highly subject to change as we experiment to
discover the most efficient method.
o All supported network protocols have been updated to avoid the ``big
switch'' pr_usrreq(), and to pass a process pointer down to each user
request that might need process credentials or want to sleep,
replacing the previous hodgepodge of inspecting curproc (which only
occasionally did the right thing) and the SS_PRIV socket state flag.
The latter has now been eliminated, along with the SO_PRIVSTATE socket
option which cleared it. Protocols are now also given the opportunity
to override the generic send, receive, and poll routines, which will
make it possible for a more efficient, protocol-specific
implementation of these entry points in later releases. Finally, many
parts of the network code have been modified to cease storing socket
addresses and other metainformation in mbufs, in preparation for the
eventual elimination thereof. The mechanism by which socket addresses
are now returned is still highly subject to change as we experiment to
discover the most efficient method.
Responses to multicast ICMP ECHO REQUEST (``ping'') and ADDRESS MASK
REQUEST packets can now be disabled via sysctl. The netstat program
will print out statistics on how many times this happens.
o Responses to multicast ICMP ECHO REQUEST (``ping'') and ADDRESS MASK
REQUEST packets can now be disabled via sysctl. The netstat program
will print out statistics on how many times this happens.
It is possible to compile in a font for syscons.
o It is possible to compile in a font for syscons.
The bootblocks can set VESA videomode 0x102 (800x600x16) before loading
the kernel, this allows XFree86 to work in this resolution on most
moderately recent graphics hardware, including many laptops.
A set of patches are making their way to -current that allows syscons
to operate in this mode too; contact phk@FreeBSD.org.
o The bootblocks can set VESA videomode 0x102 (800x600x16) before loading
the kernel, this allows XFree86 to work in this resolution on most
moderately recent graphics hardware, including many laptops.
A set of patches are making their way to -current that allows syscons
to operate in this mode too; contact phk@FreeBSD.org.
A subtle and seldom bug in ffs has been fixed.
o A subtle and seldom bug in ffs has been fixed.
The VFS name cache has been reworked to be more accountable and efficient.
o The VFS name cache has been reworked to be more accountable and efficient.
The generic part of VOP_LOOKUP() has been put it in system-wide function
which filesystems can rely on for the canonical stuff.
o The generic part of VOP_LOOKUP() has been put it in system-wide function
which filesystems can rely on for the canonical stuff.
Vnode freelist handling has been hauled over. Vnodes are only on the
freelist if nobody care about them.
o Vnode freelist handling has been hauled over. Vnodes are only on the
freelist if nobody care about them.
The kernel provides assistance to getcwd() from data stored in the name
cache if possible.
o The kernel provides assistance to getcwd() from data stored in the name
cache if possible.
An interrupt driven configuration hook mechanism has been implemented.
This allows drivers to postpone part of their configuration until after
interrupts are fully enabled. This speeds booting because busy-waiting
is avoided for things like sub device probing (eg: SCSI bus probes).
o An interrupt driven configuration hook mechanism has been implemented.
This allows drivers to postpone part of their configuration until after
interrupts are fully enabled. This speeds booting because busy-waiting
is avoided for things like sub device probing (eg: SCSI bus probes).
The timeout(9) system in the kernel has been overhauled. This gives
O(1) insertion and removal of callouts and an O(hash chain length)
amount of work to be performed in softclock. The original paper is at:
o The timeout(9) system in the kernel has been overhauled. This gives
O(1) insertion and removal of callouts and an O(hash chain length)
amount of work to be performed in softclock. The original paper is at:
http://www.cs.berkeley.edu/~amc/research/timer/
Changes in driver buffer queuing to deal with ordered transactions. This
is intended for sequencing data and metadata writes in the filesystem code
once fully supported.
o Changes in driver buffer queuing to deal with ordered transactions. This
is intended for sequencing data and metadata writes in the filesystem code
once fully supported.
EISA Shared interrupts are now supported, working with the framework
originally for supporting PCI shared interrupts.
o EISA Shared interrupts are now supported, working with the framework
originally for supporting PCI shared interrupts.
Support for the Comtrol Rocketport card.
o Support for the Comtrol Rocketport card.
New Plug and Play (PnP) support that allows you to (re)configure PnP
devcies. Also support for modems being detected by the PnP part and
automaticly attached.
o New Plug and Play (PnP) support that allows you to (re)configure PnP
devcies. Also support for modems being detected by the PnP part and
automaticly attached.
Import of new sound code from Luigi Rizzo. This code is still being
developed, but has support for a number of different cards.
o Import of new sound code from Luigi Rizzo. This code is still being
developed, but has support for a number of different cards.
The psm, mse and sysmouse drivers are improved to provide better mouse
support. In particular, the psm driver now supports various ``wheeled''
mice.
o The psm, mse and sysmouse drivers are improved to provide better mouse
support. In particular, the psm driver now supports various ``wheeled''
mice.
o Added support for SMC EtherPower II 10/100 Fast Ethernet card
(aka SMC9432TX based on SMC83c170 EPIC chip).
SECURITY CHANGES:
7/29 Lots of lpr/lpd security fixes merged from OpenBSD.
8/22 buffer overflows in tip corrected (benign since tip isn't
97/7/29 Lots of lpr/lpd security fixes merged from OpenBSD.
97/8/22 buffer overflows in tip corrected (benign since tip isn't
set[ug]id)
8/26 buffer overflow in glob fixed, no know exploits
8/27 vacation security problem with sendmail corrected (SNI)
8/29 inetd sleeps less when children exit, making DoS attacks much
97/8/26 buffer overflow in glob fixed, no know exploits
97/8/27 vacation security problem with sendmail corrected (SNI)
97/8/29 inetd sleeps less when children exit, making DoS attacks much
harder.
8/29 fts now race-proof and find -execdir added (-current only)
8/31 games setuid -> setgid. Makes any games exploits benign (only
97/8/29 fts now race-proof and find -execdir added (-current only)
97/8/31 games setuid -> setgid. Makes any games exploits benign (only
score files vulnerable). Please report any problems to
eivind@FreeBSD.org (score-file ownership problems are known)
12/3 Add Intel's suggested fix for the F00F bug. If you don't have
97/12/3 Add Intel's suggested fix for the F00F bug. If you don't have
a Pentium, the NO_F00F_HACK kernel option will disable it.
98/1/20 More robust protection against LAND attacks now incorporated.
The suidperl vulnerability mentioned in the CERT advisory CA-97.17 is
also believed to be fixed.
@ -348,7 +352,7 @@ AMD PCnet/PCI (79c970 & 53c974 or 79c974)
SMC Elite 16 WD8013 ethernet interface, and most other WD8003E,
WD8003EBT, WD8003W, WD8013W, WD8003S, WD8003SBT and WD8013EBT
based clones. SMC Elite Ultra is also supported.
based clones. SMC Elite Ultra. SMC Etherpower II.
DEC EtherWORKS III NICs (DE203, DE204, and DE205)
DEC EtherWORKS II NICs (DE200, DE201, DE202, and DE422)