extraction and creation. While I'm here, fix a bug reported by Garrett
Wollman: when stripping the leading '/' from the path "/", don't produce
an entry with an empty name; produce "." instead.
to see if additional write requests will arrive that can be coalesced and
clustered with earlier ones. When doing so, it must determine whether
the two requests are made by credentials with the same access writes, so
as not to coalesce improperly. NFSW_SAMECRED() implements a test of two
credentials using a binary compare.
Replace NFSW_SAMECRED() macro with nfsrv_samecred() function, which is
aware of the contents and layout of a struct ucred, rather than a simple
binary compare. While the binary compare works when ucred is simply a
zero'd and embedded 'struct ucred' in the NFS descriptor, it will work
less well when the ucred associated with an NFS descriptor is "real", so
has defined and populated reference count, mutex, etc.
MFC after: 1 week
Obtained from: TrustedBSD Project
this buffer anyway so the constraint that it had to be DMA capable only
caused pain when devices failed to aquire the memory. Use a regular
malloc instead with sndbuf_setup.
Approved by: tanimura (mentor)
at their old location in sys/dev/esp after they were repo-copied to
sys/sparc64/sbus at rev. 1.1:
sys/dev/esp/lsi64854.c rev. 1.2
sys/dev/esp/lsi64854var.h rev. 1.2
Add some style(9) touch ups; style(9) states that new code should follow
these conventions and, well, this is a new driver.
Tested on: i386, sparc64
Reviewed by: scottl
with the attaching of the children done in the bus attach function like
it's supposed to be.
- In the bus probe nomatch function print the resources of the children
like it's done in the other sparc64 specific bus drivers.
- For the clock frequency IVAR use the per-child values and fall back to
the bus default in case a child doesn't have the respective property
instead of always using the bus default so a child driver doesn't need
to obtain the per-child value itself (see also the commit message of
sys/dev/esp/esp_sbus.c rev. 1.7).
- Add support for pass-through allocations. The comment preceding
sbus_alloc_resource() wasn't quite correct, we need to support pass-
through allocations for the 'espdma' and 'ledma' (pseudo-)busses which
hang off of the SBus in Ultra 1 machines. There can also be actual
bridges like the SBus-to-PCMCIA bridge on the SBus and the XBox (SBus
extension box) probably also involves one.
- Use auto-generated typedefs for the prototypes of the device interface
functions.
- Style(9) fixes (mainly don't use function calls in initializers).
- Use __func__ instead of hardcoded function names in error messages.
- Try to make error messages sound uniform.
- Try to keep the code within 80 columns.
- Correct some typos.
- Correct some function declarations to match their prototypes.
- Remove unused headers, macros and variables.
- Remove a bzero() superfluous due to allocating with M_ZERO.
- Use FBSDID.
getnameinfo(3). POSIX standard does not require a sa_len field
in sockaddr struct, hence such requirement will cause problem
for portability.
PR: standards/80008
Requested by: Xin Liu <lx@knight.6test.edu.cn>
Reviewed by: freebsd-standards (das)
MFC After: 2 weeks
Since the name cache is case-sensitive and msdosfs isn't,
creating a file 'foo' won't invalidate a negative entry for 'FOO'.
There are similar problems related to 8.3 filenames.
A better solution is to override VOP_LOOKUP with a method that
canonicalizes the name, then calls vfs_cache_lookup(). Unfortunately,
it's not quite that simple because vfs_cache_lookup() will call
msdosfs_lookup() on a cache miss, and msdosfs_lookup() needs a way to
get at the original component name.
control socket poll() (select()), fstat(), and accept() operations,
required for some policies:
poll() mac_check_socket_poll()
fstat() mac_check_socket_stat()
accept() mac_check_socket_accept()
Update mac_stub and mac_test policies to be aware of these entry points.
While here, add missing entry point implementations for:
mac_stub.c stub_check_socket_receive()
mac_stub.c stub_check_socket_send()
mac_test.c mac_test_check_socket_send()
mac_test.c mac_test_check_socket_visible()
Obtained from: TrustedBSD Project
Sponsored by: SPAWAR, SPARTA
of the socket label to thread-local storage, and replace it with
conditional acquisition based on debug.mpsafenet. Acquire the socket
lock around the copy operation.
In mac_set_fd(), replace the unconditional acquisition of Giant with
the conditional acquisition of Giant based on debug.mpsafenet. The socket
lock is acquired in mac_socket_label_set() so doesn't have to be
acquired here.
Obtained from: TrustedBSD Project
Sponsored by: SPAWAR, SPARTA
of lines in SMP machines (which are wider), until we have a better way
of handling window sizes & columns in top.
Caught by: ache, Andre Guibert de Bruet <andy@siliconlandmark.com>
Point hat: keramida
Don't use atomic ops to increment interrupt stats.
On sparc64 this reduces delay until tick interrupts are service by 1/10th
on average. In turn this reduces the clock drift caused by these delays
so there's less drift which has to be compensated in tick_hardclock().
This includes switching from atomically incrementing the global cnt.v_intr
to the asm equivalent of PCPU_LAZY_INC(cnt.v_intr) in exception.S
- Correct some comments to match the registers actually used.
- Correct some format specifiers, interrupt levels passed in are u_int.
- Use FBSDID.
Ok'ed by: jhb
- Fix NULL pointer dereferences caused when an ithread or a handler is
NULL which happens when a stray interrupt triggers after the respective
device interrupt was torn down.
- Remove the critical section around INTR_FAST handlers which actually
was a nested critical section. Both tl0_intr() and tl1_intr() already
enter a critical section for calling intr_execute_handlers().
MFC after: 3 days
call tick_stop() again after tick_init() as tick interrupts already
have been disabled as part of tick_init().
- In spinlock_enter() replace the magic value for PIL TICK with the
respective macro.
- Use FBSDID.
SpitFire erratum #54) which can cause writes to the TICK_CMPR register
to fail. This seems to fix the dying clocks problem reported by jhb@
and kris@. [1]
- In tick_start() don't reset the tick counter of the boot processor to
zero. It's initially reset in _start() and afterwards but _before_
tick_start() is called on the BSP the APs synchronise with the tick
counter of the BSP in mp_startup(). Resetting the tick counter of the
BSP in tick_start() probably also was the cause of problems seen when
using the CPU tick counter as timecounter on SMP machines.
Not resetting the tick counter of the BSP in mp_startup() makes the
tick counters and tick interrupts between the BSP and APs be pretty
much in sync as it's supposed to be. This also means there's no longer
a real reason to have separate tick_start() and tick_start_ap() so
merge them and zap tick_start_ap(). This is also a first step in
simplifying the interface to the tick counters in preparation to use
alternate clock hardware where available.
- Switch to the algorithm used on FreeBSD/ia64 for updating the tick
interrupt register and which compensates the clock drift caused by
varying delays between when the tick interrupts actually trigger and
when they are serviced. Not compensating the clock drift mainly hurts
interactive performance especially when using WITNESS. [2]
For further information about the algorithm also see the commit log
of sys/ia64/ia64/interrupt.c rev. 1.38.
On sparc64 the sysctls for monitoring the behaviour of the tick
interrupts are machdep.tick.adjust_edges, machdep.tick.adjust_excess,
machdep.tick.adjust_missed and machdep.tick.adjust_ticks.
- In tick_init() just use tick_stop() for stopping the tick interrupts
until a proper handler is set up later. This also stops the system
tick interrupt on USIII systems earlier.
- In tick_start() check for a rough upper limit of HZ.
- Some minor changes, e.g. use FBSDID, remove unused headers, etc.
Info obtained from: Linux [1]
Ok'ed by: marcel [2]
Additional testing by: kris (earlier version of the workaround), jhb
X-MFC after: 3 days [1]
of system calls to manipulate elements of the process credential,
including:
setuid() mac_check_proc_setuid()
seteuid() mac_check_proc_seteuid()
setgid() mac_check_proc_setgid()
setegid() mac_check_proc_setegid()
setgroups() mac_check_proc_setgroups()
setreuid() mac_check_proc_setreuid()
setregid() mac_check_proc_setregid()
setresuid() mac_check_proc_setresuid()
setresgid() mac_check_rpoc_setresgid()
MAC checks are performed before other existing security checks; both
current credential and intended modifications are passed as arguments
to the entry points. The mac_test and mac_stub policies are updated.
Submitted by: Samy Al Bahra <samy@kerneled.org>
Obtained from: TrustedBSD Project
than defaulting the cmode argument to vn_open() to 0. Supply a default
argument of ALQ_DEFAULT_CMODE (0600) in current callers.
Discussed with/pointed out by: hmp
Reveiwed by: jeff, hmp
MFC after: 3 days
Currently only performs basic tests against the library string routines,
and queries less important kernel state.
Obtained from: TrustedBSD Project
Sponsored by: SPAWAR, SPARTA
MFC after: 3 days
check the password or group database before attempting to parse as an
integer, as is done for the first {uid,gid} in an identity phrase.
Obtained from: TrustedBSD Project
Sponsored by: SPAWAR, SPARTA
