155840 Commits

Author SHA1 Message Date
rwatson
eb422ada74 Close some but not all writer-writer races when maintaining IPv6
interface address lists by locking the interface address list lock.

MFC after:	2 weeks
2009-04-20 16:05:16 +00:00
stas
c07d8be27a - Give a warning and start the oscillator if it was not previously
runned.
- Rename ds1672 -> rtc to follow the other drivers.
- Refactor/simplify the code a bit.

MFC after:	2 weeks
2009-04-20 15:47:06 +00:00
imp
dfdb087397 Sometimes we can call ed_detach() before the mtx has been initialized.
Avoid it if it hasn't been initialized.
2009-04-20 15:19:54 +00:00
ed
e4b8a090a6 Make mse(4) use si_drv1, instead of using unit numbers.
Discussed with:	imp
2009-04-20 15:15:24 +00:00
kib
76ae16d421 Fix typo.
Noted by:	jhb
MFC after:	2 weeks
2009-04-20 15:10:03 +00:00
antoine
e0ce7397e7 vlan(4) no longer depends on miibus(4).
Reviewed by:	jhb@
MFC after:	1 month
2009-04-20 15:01:45 +00:00
rwatson
859e97941f Lock interface address lists before iterating over them in nd6.
MFC after:	2 weeks
2009-04-20 14:41:23 +00:00
bz
ab7aea9843 Conditionally add the interface name and address if available
so that a ppp running in `receiver' (server) mode can properly
update routes, for example to update the MTU.

Submitted by:	loos.br gmail.com (Luiz Otavio O Souza)
PR:		bin/130159
PR:		kern/125079, kern/122068, bin/126892
MFC after:	3 days
2009-04-20 14:38:48 +00:00
kib
24114749aa In ufs_checkpath(), recheck that '..' still points to the inode with
the same inode number after VFS_VGET() and relock of the vp. If '..'
changed, redo the lookup. To reduce code duplication, move the code to
read '..' dirent into the static helper function ufs_dir_dd_ino().

Supply the source inode number as an argument to ufs_checkpath() instead
of the source inode itself. The inode is unlocked, thus it might be
reclaimed, causing accesses to the freed memory.

Use vn_vget_ino() to get the '..' vnode by its inode number, instead of
directly code VFS_VGET() and relock, to properly busy the mount point
while vp lock is dropped.

Noted and reviewed by:	tegge
Tested by:	pho
MFC after:	1 month
2009-04-20 14:36:01 +00:00
rwatson
cbaf9d767f In ip_input(), cache the received mbuf's network interface in a local
variable.  Acquire the interface address list lock when iterating over
the interface address list searching for a matching received broadcast
address.

MFC after:	2 weeks
2009-04-20 14:35:42 +00:00
kib
32441d8ae9 On the exit of the child process which parent either set SA_NOCLDWAIT
or ignored SIGCHLD, unconditionally wake up the parent instead of doing
this only when the child is a last child.

This brings us in line with other U**xes that support SA_NOCLDWAIT. If
the parent called waitpid(childpid), then exit of the child should wake
up the parent immediately instead of forcing it to wait for all children
to exit.

Reported by:	Alan Ferrency <alan pair com>
Submitted by:	Jilles Tjoelker <jilles stack nl>
PR:	108390
MFC after:	2 weeks
2009-04-20 14:34:55 +00:00
trasz
03099c8940 Adjust route(4) manual page to remove rtm_use field, which was removed
from the route.h some time ago.

Reviewed by:	rwatson
2009-04-20 13:53:40 +00:00
rwatson
bb7780fc12 In icmp_reflect(), acquire the inteface address list lock when
searching for a source address to use.

MFC after:	2 weeks
Reviewed by:	bz
2009-04-20 13:45:39 +00:00
stas
518b993576 - Unlock softc mutex on failure.
MFC after:	1 week
2009-04-20 13:15:25 +00:00
rwatson
21a8b350dc Don't conditionally define CACHE_LINE_SHIFT, as we anticipate sizing
a fair number of static data structures, making this an unlikely
option to try to change without also changing source code. [1]

Change default cache line size on ia64, sparc64, and sun4v to 128
bytes, as this was what rtld-elf was already using on those
platforms. [2]

Suggested by:	bde [1], jhb [2]
MFC after:	2 weeks
2009-04-20 12:59:23 +00:00
stas
a780a09a2b - Properly unlock mutex on failure in channel_trigger. Before this
the function just returned with the mutex held.

MFC after:	1 week
2009-04-20 12:43:07 +00:00
raj
588e47016e Provide locking for PowerPC interrupt sources config.
Reviewed by:	attilio
2009-04-20 12:40:28 +00:00
bz
c47c606500 While we currently still seem to have a gateway address, for future
stability, check for gw to be set before adding the flag and the address
to the routing message.

r186308, backed out in r191305, already tried to do that, and in addition
ignore AF_LINK types of gateway addresses to work around a problem that
r167797 had introduced on the kernel side always setting RTF_GATEWAY if a
gateway address was passed into the kernel.
The proper solution for this is still under discussion so I am hesitant to
re-add the special AF_LINK treatment for now.

MFC after:	3 days
2009-04-20 11:51:35 +00:00
bz
1a4d93caae Back out r186308:
in case of AF_LINK, which the kernel still returns for an RTAX_GATEWAY
as an empty sockaddr_dl in the classic tun<n> case.
Copying the address into the message payload, but not the RTA_GATEWAY
flag results in rt_xaddrs() in the kernel tripping over that and parsing
the next attribute set with a flag, i.e. RTA_NETMASK, with the gateway
address, resulting in bogus route entry.

MFC after:	3 days
2009-04-20 11:22:51 +00:00
ed
13610dbcef Get rid of the device index number stored in the sa(4) unit number.
The device index number stored in the unit number of sa(4) devices is
only used to print debug messages. Get rid of this index number and use
devtoname() to just print the entire device name.
2009-04-20 10:40:42 +00:00
rwatson
8c6f0d9418 Prefer <sys/param.h> to <machine/param.h> for the definition of
CACHE_LINE_SIZE.

Submitted by:	bde
MFC after:	2 weeks
2009-04-20 10:35:50 +00:00
roberto
d0b7303e63 Merge r191298 into HEAD.
Prevent a buffer overflow in ntpq.  Patch taken from the PR database
after being committed to the official ntp tree and present in 4.2.4p7-rc2.

It will be MFH to the upcoming 7.2 pending re approval.

Obtained from:  https://support.ntp.org/bugs/show_bug.cgi?id=1144
MFC after:      3 days
Security:       http://www.securityfocus.com/bid/34481
                CVE-2009-0159
2009-04-20 09:59:08 +00:00
yongari
77dde87e61 For RTL8139C+ controllers, have controller handle padding short
checksum offload frames. Software workaround used for broken
controllers(RTL8169, RTL8168, RTL8168B) seem to cause watchdog
timeouts on RTL8139C+.
Introduce a new flag RL_FLAG_AUTOPAD to mark automatic padding
feature of controller and set it for RTL8139C+ and controllers that
use new descriptor format. This fixes watchdog timeouts seen on
RTL8139C+.

Reported by:	Dimitri Rodis < DimitriR <> integritasystems dot com >
Tested by:	Dimitri Rodis < DimitriR <> integritasystems dot com >
2009-04-20 07:13:04 +00:00
alc
53ec7b000f MFamd64/i386
Introduce pmap_try_insert_pv_entry(), a function that conditionally
  creates a pv entry if the number of entries is below the high water mark
  for pv entries.

  Introduce pmap_enter_quick_locked() and use it to reimplement
  pmap_enter_object().  The old implementation was broken.  For example,
  it could block while holding a mutex lock.

  Change pmap_enter_quick_locked() to fail rather than wait if it is
  unable to allocate a page table page.  This prevents a race between
  pmap_enter_object() and the page daemon.  Specifically, an inactive
  page that is a successor to the page that was given to
  pmap_enter_quick_locked() might become a cache page while
  pmap_enter_quick_locked() waits and later pmap_enter_object() maps
  the cache page violating the invariant that cache pages are never
  mapped.  Similarly, change
  pmap_enter_quick_locked() to call pmap_try_insert_pv_entry() rather
  than pmap_insert_entry().  Generally speaking,
  pmap_enter_quick_locked() is used to create speculative mappings.  So,
  it should not try hard to allocate memory if free memory is scarce.

Tested by:	gonzo
2009-04-20 03:44:54 +00:00
imp
dce30a548c Cleanup resource allocation code a bit. Store the rids on the
resources rather than on the softc.  When we allocate resources for PC
Card, if we only get 16 ports, try again to get the others.
2009-04-20 01:19:59 +00:00
rwatson
b958422b5e Pass int arguments to auditon(2)'s A_GETCOND API rather than long
arguments.  This change should be MFC'd with OpenBSM 1.1 since they
are interdependent.

MFC after:	2 weeks
Obtained from:	TrustedBSD Project
Sponsored by:	Apple, Inc.
2009-04-19 23:34:22 +00:00
rwatson
9019825321 Temporarily relax the constraints on argument size checking for A_GETCOND;
login(1) isn't quite ready for them yet on 64-bit systems as it continues
to use the conventions of the old version of the API.

Reported by:	stas, Jakub Lach <jakub_lach at mailplus.pl>
2009-04-19 23:28:08 +00:00
rwatson
fab10a1822 Explicitly include machine/param.h for CACHE_LINE_SIZE.
MFC after:	2 weeks
2009-04-19 23:03:57 +00:00
rwatson
9d69b9825b Now that the kernel defines CACHE_LINE_SIZE in machine/param.h, use
that definition in the custom locking code for the run-time linker
rather than local definitions.

Pointed out by:	tinderbox
MFC after:	2 weeks
2009-04-19 23:02:50 +00:00
rwatson
901df80bd6 Lock the interface address list when searching for a matching interface
by address, or when implementing 'me' rules on IPv6.  Prefer the field
name if_addrhead to the macro if_addrlist.

MFC after:	2 weeks
2009-04-19 22:34:35 +00:00
rwatson
ee528abe46 In divert_packet(), lock the interface address list before iterating over
it in search of an address.

MFC after:	2 weeks
2009-04-19 22:29:16 +00:00
rwatson
12c8c21e5c Lock interface address lists in in_pcbladdr() when searching for a
source address for a connection and there's no route or now interface
for the route.

MFC after:	2 weeks
2009-04-19 22:25:09 +00:00
rwatson
38c104950f Protect against some writer-writer races in in_control() by acquiring
the interface address list lock around interface address list
modifications.  More to do here.

MFC after:	2 weeks
2009-04-19 22:16:19 +00:00
rwatson
80e4437a3b Lock the interface address list while building replies to
NGM_CISCO_COOKIE messages in ng_iface.

MFC after:	2 weeks
2009-04-19 22:05:39 +00:00
rwatson
8a092572b5 Lock interface address list when building a reply to NGM_EIFACE_GET_IFADDRS
messages in ng_eiface.

MFC after:	2 weeks
2009-04-19 22:04:29 +00:00
rwatson
1e1a0b82b3 Lock interface address list lock around ifaddr inserts and deletes
in at_control().  This locking is not yet complete but should prevent
some classes of race conditions.

MFC after:	2 weeks
2009-04-19 22:01:38 +00:00
nwhitehorn
e6e3922548 Build sound modules on PowerPC. 2009-04-19 21:37:45 +00:00
rwatson
f15ded690a Lock the interface address list while iterating a network interface's
address list when searching for a link-layer address to use during uuid
generation.

MFC after:	2 weeks
2009-04-19 21:36:18 +00:00
rwatson
ab17fac487 Add description and cautionary note regarding CACHE_LINE_SIZE.
MFC after:	2 weeks
Suggested by:	alc
2009-04-19 21:26:36 +00:00
kib
e215ab3b02 In both pageout oom handler and vm_daemon, acquire the reference to
the vmspace of the examined process instead of directly accessing its
vmspace, that may change. Also, as an optimization, check for P_INEXEC
flag before examining the process.

Reported and tested by:	pho (previous version)
Reviewed by:	alc
MFC after:	3 week
2009-04-19 20:53:47 +00:00
rwatson
8df790f38f For each architecture, define CACHE_LINE_SHIFT and a derived
CACHE_LINE_SIZE constant.  These constants are intended to
over-estimate the cache line size, and be used at compile-time
when a run-time tuning alternative isn't appropriate or
available.

Defaults for all architectures are 64 bytes, except powerpc
where it is 128 bytes (used on G5 systems).

MFC after:	2 weeks
Discussed on:   arch@
2009-04-19 20:19:13 +00:00
phk
293f0e00a8 A script for plucking packages and their runtime dependencies for
nanobsd images.
2009-04-19 18:23:23 +00:00
rnoland
f0aed0f29a Don't try to setup interrupts for drivers that don't support them.
This causes sis and probably a couple of other driver to panic and fail.

Tested by:	cpghost <cpghost@cordula.ws>
PR:		133554
MFC after:	3 days
2009-04-19 16:54:33 +00:00
rwatson
0776eb3d4e Merge OpenBSM 1.1 from OpenBSM vendor branch to head.
OpenBSM history for imported revision below for reference.

MFC after:      2 weeks
Sponsored by:   Apple, Inc.
Obtained from:  TrustedBSD Project

OpenBSM 1.1

- Change auditon(2) parameters and data structures to be 32/64-bit architecture
  independent.  Add more information to man page about auditon(2) parameters.
- Add wrapper functions for auditon(2) to use legacy commands when the new
  commands are not supported.
- Add default for 'expire-after' in audit_control to expire trail files when
  the audit directory is more than 10 megabytes ('10M').
- Interface to convert between local and BSM fcntl(2) command values has been
  added:  au_bsm_to_fcntl_cmd(3) and au_fcntl_cmd_to_bsm(3), along with
  definitions of constants in audit_fcntl.h.
- A bug, introduced in OpenBSM 1.1 alpha 4, in which AUT_RETURN32 tokens
  generated by audit_submit(3) were improperly encoded has been fixed.
- Fix example in audit_submit(3) man page.  Also, make it clear that we want
  the audit ID as the argument.
- A new audit event class 'aa', for post-login authentication and
  authorization events, has been added.
2009-04-19 16:17:13 +00:00
rwatson
54523de9b2 Vendor import of OpenBSM 1.1, which incorporates the following changes
since the last imported OpenBSM release:

OpenBSM 1.1

- Change auditon(2) parameters and data structures to be 32/64-bit architecture
  independent.  Add more information to man page about auditon(2) parameters.
- Add wrapper functions for auditon(2) to use legacy commands when the new
  commands are not supported.
- Add default for 'expire-after' in audit_control to expire trail files when
  the audit directory is more than 10 megabytes ('10M').
- Interface to convert between local and BSM fcntl(2) command values has been
  added:  au_bsm_to_fcntl_cmd(3) and au_fcntl_cmd_to_bsm(3), along with
  definitions of constants in audit_fcntl.h.
- A bug, introduced in OpenBSM 1.1 alpha 4, in which AUT_RETURN32 tokens
  generated by audit_submit(3) were improperly encoded has been fixed.
- Fix example in audit_submit(3) man page.  Also, make it clear that we want
  the audit ID as the argument.
- A new audit event class 'aa', for post-login authentication and
  authorization events, has been added.

Obtained from:	TrustedBSD Project
Sponsored by:	Apple, Inc.
2009-04-19 15:18:16 +00:00
rwatson
7e3aff1dc1 Merge OpenBSM 1.1 changes to the FreeBSD 8.x kernel:
- Add and use mapping of fcntl(2) commands to new BSM constant space.
- Adopt (int) rather than (long) arguments to a number of auditon(2)
  commands, as has happened in Solaris, and add compatibility code to
  handle the old comments.

Note that BSM_PF_IEEE80211 is partially but not fully removed, as the
userspace OpenBSM 1.1alpha5 code still depends on it.  Once userspace
is updated, I'll GCC the kernel constant.

MFC after:		2 weeks
Sponsored by:		Apple, Inc.
Obtained from:		TrustedBSD Project
Portions submitted by:	sson
2009-04-19 14:53:17 +00:00
dchagin
ada9604fd2 Remove support for FUTEX_REQUEUE operation.
Glibc does not use this operation since 2.3.3 version (Jun 2004),
as it is racy and replaced by FUTEX_CMP_REQUEUE operation.
Glibc versions prior to 2.3.3 fall back to FUTEX_WAKE when
FUTEX_REQUEUE returned EINVAL.

Any application directly using FUTEX_REQUEUE without return
value checking are definitely broken.

Limit quantity of messages per process about unsupported
operation.

Approved by:	kib (mentor)
MFC after:	1 month
2009-04-19 13:48:42 +00:00
rwatson
367054e0a3 struct malloc_type has had a 'magic' field statically initialized to
M_MAGIC by MALLOC_DEFINE() for a long time; add assertions that
malloc_type's passed to malloc(), free(), etc have that magic set.

MFC after:	2 weeks
2009-04-19 12:41:37 +00:00
rwatson
85f0248bf0 Garbage collect now-unused struct malloc_type fields, bump __FreeBSD_version
as kernel modules will need to be rebuilt.  These fields existed to support
binary compatibility with kernel modules from before the introduction of
libmemstat(3) in FreeBSD 6.x, so they are no longer required.
2009-04-19 11:20:57 +00:00
trasz
128b961224 When allocating 'struct acl' instances, use malloc(9) instead of uma(9).
This struct will get much bigger soon, and we don't want to waste too much
memory on UMA caches.

Reviewed by:	rwatson
2009-04-19 09:56:30 +00:00