Add a flag to tag individual sysctl leaf nodes as MPSAFE and thus not
needing Giant.

Submitted by: csjp (an older version)

Conditionally compile out V_ globals while instantiating the appropriate
container structures, depending on VIMAGE_GLOBALS compile time option.

Make VIMAGE_GLOBALS a new compile-time option, which b

Conditionally compile out V_ globals while instantiating the appropriate
container structures, depending on VIMAGE_GLOBALS compile time option.

Make VIMAGE_GLOBALS a new compile-time option, which by default will not
be defined, resulting in instatiations of global variables selected for
V_irtualization (enclosed in #ifdef VIMAGE_GLOBALS blocks) to be
effectively compiled out. Instantiate new global container structures
to hold V_irtualized variables: vnet_net_0, vnet_inet_0, vnet_inet6_0,
vnet_ipsec_0, vnet_netgraph_0, and vnet_gif_0.

Update the VSYM() macro so that depending on VIMAGE_GLOBALS the V_
macros resolve either to the original globals, or to fields inside
container structures, i.e. effectively

#ifdef VIMAGE_GLOBALS
#define V_rt_tables rt_tables
#else
#define V_rt_tables vnet_net_0._rt_tables
#endif

Update SYSCTL_V_*() macros to operate either on globals or on fields
inside container structs.

Extend the internal kldsym() lookups with the ability to resolve
selected fields inside the virtualization container structs. This
applies only to the fields which are explicitly registered for kldsym()
visibility via VNET_MOD_DECLARE() and vnet_mod_register(), currently
this is done only in sys/net/if.c.

Fix a few broken instances of MODULE_GLOBAL() macro use in SCTP code,
and modify the MODULE_GLOBAL() macro to resolve to V_ macros, which in
turn result in proper code being generated depending on VIMAGE_GLOBALS.

De-virtualize local static variables in sys/contrib/pf/net/pf_subr.c
which were prematurely V_irtualized by automated V_ prepending scripts
during earlier merging steps. PF virtualization will be done
separately, most probably after next PF import.

Convert a few variable initializations at instantiation to
initialization in init functions, most notably in ipfw. Also convert
TUNABLE_INT() initializers for V_ variables to TUNABLE_FETCH_INT() in
initializer functions.

Discussed at: devsummit Strassburg
Reviewed by: bz, julian
Approved by: julian (mentor)
Obtained from: //depot/projects/vimage-commit2/...
X-MFC after: never
Sponsored by: NLnet Foundation, The FreeBSD Foundation

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Merge user/peter/kinfo branch as of r185547 into head.

This changes struct kinfo_filedesc and kinfo_vmentry such that they are
same on both 32 and 64 bit platforms like i386/amd64 and won't require

Merge user/peter/kinfo branch as of r185547 into head.

This changes struct kinfo_filedesc and kinfo_vmentry such that they are
same on both 32 and 64 bit platforms like i386/amd64 and won't require
sysctl wrapping.

Two new OIDs are assigned. The old ones are available under
COMPAT_FREEBSD7 - but it isn't that simple. The superceded interface
was never actually released on 7.x.

The other main change is to pack the data passed to userland via the
sysctl. kf_structsize and kve_structsize are reduced for the copyout.
If you have a process with 100,000+ sockets open, the unpacked records
require a 132MB+ copyout. With packing, it is "only" ~35MB. (Still
seriously unpleasant, but not quite as devastating). A similar problem
exists for the vmentry structure - have lots and lots of shared libraries
and small mmaps and its copyout gets expensive too.

My immediate problem is valgrind. It traditionally achieves this
functionality by parsing procfs output, in a packed format. Secondly, when
tracing 32 bit binaries on amd64 under valgrind, it uses a cross compiled
32 bit binary which ran directly into the differing data structures in 32
vs 64 bit mode. (valgrind uses this to track file descriptor operations
and this therefore affected every single 32 bit binary)

I've added two utility functions to libutil to unpack the structures into
a fixed record length and to make it a little more convenient to use.

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Step 1.5 of importing the network stack virtualization infrastructure
from the vimage project, as per plan established at devsummit 08/08:
http://wiki.freebsd.org/Image/Notes200808DevSummit

Introduc

Step 1.5 of importing the network stack virtualization infrastructure
from the vimage project, as per plan established at devsummit 08/08:
http://wiki.freebsd.org/Image/Notes200808DevSummit

Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator
macros, and CURVNET_SET() context setting macros, all currently
resolving to NOPs.

Prepare for virtualization of selected SYSCTL objects by introducing a
family of SYSCTL_V_*() macros, currently resolving to their global
counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT().

Move selected #defines from sys/sys/vimage.h to newly introduced header
files specific to virtualized subsystems (sys/net/vnet.h,
sys/netinet/vinet.h etc.).

All the changes are verified to have zero functional impact at this
point in time by doing MD5 comparision between pre- and post-change
object files(*).

(*) netipsec/keysock.c did not validate depending on compile time options.

Implemented by: julian, bz, brooks, zec
Reviewed by: julian, bz, brooks, kris, rwatson, ...
Approved by: julian (mentor)
Obtained from: //depot/projects/vimage-commit2/...
X-MFC after: never
Sponsored by: NLnet Foundation, The FreeBSD Foundation

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Fix wierd integration error
No idea where this came from

Fix some of the formatting fixes.. It's amazing how some thing stand out
in a commit message.

A bunch of formatting fixes brough to light by, or created by the Vimage commit
a few days ago.

Implement the following macros for completeness:

SYSCTL_QUAD()
SYSCTL_ADD_QUAD()
TUNABLE_QUAD()
TUNABLE_QUAD_FETCH()

Now we can use 64bit tunables on 32bit systems.

- Make SCHED_STATS more generic by adding a wrapper to create the
variables and sysctl nodes.
- In reset walk the children of kern_sched_stats and reset the counters
via the oid_arg1 pointer.

- Make SCHED_STATS more generic by adding a wrapper to create the
variables and sysctl nodes.
- In reset walk the children of kern_sched_stats and reset the counters
via the oid_arg1 pointer. This allows us to add arbitrary counters to
the tree and still reset them properly.
- Define a set of switch types to be passed with flags to mi_switch().
These types are named SWT_*. These types correspond to SCHED_STATS
counters and are automatically handled in this way.
- Make the new SWT_ types more specific than the older switch stats.
There are now stats for idle switches, remote idle wakeups, remote
preemption ithreads idling, etc.
- Add switch statistics for ULE's pickcpu algorithm. These stats include
how much migration there is, how often affinity was successful, how
often threads were migrated to the local cpu on wakeup, etc.

Sponsored by: Nokia

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- Restore runq to manipulating threads directly by putting runq links and
rqindex back in struct thread.
- Compile kern_switch.c independently again and stop #include'ing it from
schedulers.

- Restore runq to manipulating threads directly by putting runq links and
rqindex back in struct thread.
- Compile kern_switch.c independently again and stop #include'ing it from
schedulers.
- Remove the ts_thread backpointers and convert most code to go from
struct thread to struct td_sched.
- Cleanup the ts_flags #define garbage that was causing us to sometimes
do things that expanded to td->td_sched->ts_thread->td_flags in 4BSD.
- Export the kern.sched sysctl node in sysctl.h

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Add very basic support for the kernel to export a list of features. Each
feature is represented by a node in the new 'kern.features' sysctl node.
A feature is present if the corresponding node is pr

Add very basic support for the kernel to export a list of features. Each
feature is represented by a node in the new 'kern.features' sysctl node.
A feature is present if the corresponding node is present and evaluates to
true.

A FEATURE() wrapper macro is added which takes the sysctl node name and
a description of the feature as the sole arguments and creates a read-only
sysctl node with a value of 1.

Discussed on: arch

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Add another new sysctl in support of the forthcoming procstat(1) to
support its -k argument:

kern.proc.kstack - dump the kernel stack of a process, if debugging
is permitted.

This sysctl is prese

Add another new sysctl in support of the forthcoming procstat(1) to
support its -k argument:

kern.proc.kstack - dump the kernel stack of a process, if debugging
is permitted.

This sysctl is present if either "options DDB" or "options STACK" is
compiled into the kernel. Having support for tracing the kernel
stacks of processes from user space makes it much easier to debug
(or understand) specific wmesg's while avoiding the need to enter
DDB in order to determine the path by which a process came to be
blocked on a particular wait channel or lock.

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Add two new sysctls in support of the forthcoming procstat(1) to support
its -f and -v arguments:

kern.proc.filedesc - dump file descriptor information for a process, if
debugging is permitted, in

Add two new sysctls in support of the forthcoming procstat(1) to support
its -f and -v arguments:

kern.proc.filedesc - dump file descriptor information for a process, if
debugging is permitted, including socket addresses, open flags, file
offsets, file paths, etc.

kern.proc.vmmap - dump virtual memory mapping information for a process,
if debugging is permitted, including layout and information on
underlying objects, such as the type of object and path.

These provide a superset of the information historically available
through the now-deprecated procfs(4), and are intended to be exported
in an ABI-robust form.

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Add sysctl_rename_oid() to support device_set_unit() usage. Otherwise,
when unit numbers are changed, the sysctl devinfo tree gets out of sync
and duplicate trees are attempted to be attached with t

Add sysctl_rename_oid() to support device_set_unit() usage. Otherwise,
when unit numbers are changed, the sysctl devinfo tree gets out of sync
and duplicate trees are attempted to be attached with the original name.

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Rescue hw.machine_arch in CTL_HW_NAMES.

Backout sensors framework.

Requested by: phk
Discussed on: cvs-all

Import OpenBSD's sysctl hardware sensors framework.

This commit includes the following core components:

* sample configuration file for sensorsd
* rc(8) script and glue code for sensorsd(8)
* sy

Import OpenBSD's sysctl hardware sensors framework.

This commit includes the following core components:

* sample configuration file for sensorsd
* rc(8) script and glue code for sensorsd(8)
* sysctl(3) doc fixes for CTL_HW tree
* sysctl(3) documentation for hardware sensors
* sysctl(8) documentation for hardware sensors
* support for the sensor structure for sysctl(8)
* rc.conf(5) documentation for starting sensorsd(8)
* sensor_attach(9) et al documentation
* /sys/kern/kern_sensors.c
o sensor_attach(9) API for drivers to register ksensors
o sensor_task_register(9) API for the update task
o sysctl(3) glue code
o hw.sensors shadow tree for sysctl(8) internal magic
* <sys/sensors.h>
* HW_SENSORS definition for <sys/sysctl.h>
* sensors display for systat(1), including documentation
* sensorsd(8) and all applicable documentation

The userland part of the framework is entirely source-code
compatible with OpenBSD 4.1, 4.2 and -current as of today.

All sensor readings can be viewed with `sysctl hw.sensors`,
monitored in semi-realtime with `systat -sensors` and also
logged with `sensorsd`.

Submitted by: Constantine A. Murenin <cnst@FreeBSD.org>
Sponsored by: Google Summer of Code 2007 (GSoC2007/cnst-sensors)
Mentored by: syrinx
Tested by: many
OKed by: kensmith
Obtained from: OpenBSD (parts)

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Add a function for exporting 64 bit types.

Add kern.arnd sysctl. SSP code uses it to initialize the stack guard
magic value.

Submitted by: Jeremie Le Hen <jeremie@le-hen.org>

Add kern.hostuuid sysctl, which will be used to keep host's UUID.

Reviewed by: mlaier, rink, brooks, rwatson

Declare security and security.bsd sysctl hierarchies in sysctl.h along
with other commonly used sysctl name spaces, rather than declaring them
all over the place.

MFC after: 1 month
Sponsored by: nC

Declare security and security.bsd sysctl hierarchies in sysctl.h along
with other commonly used sysctl name spaces, rather than declaring them
all over the place.

MFC after: 1 month
Sponsored by: nCircle Network Security, Inc.

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Add _vm_stats and _vm_stats_misc to the sysctl declarations in sysctl.h and
eliminate their declarations from various source files.

Add an extension to the UINT & ULONG types. The XINT & XLONG types behave
the same, except sysctl(8) will print out the values in hex.

Add new kernel config option. NO_SYSCTL_DESCR to omit the descriptions for
the sysctls. This saves a lot of space in the resulting kernel which is
important for embedded systems. This change was d

Add new kernel config option. NO_SYSCTL_DESCR to omit the descriptions for
the sysctls. This saves a lot of space in the resulting kernel which is
important for embedded systems. This change was done in a ABI compatible
way. The pointer is still there, it just points to an empty string instead
of the description.

MFC After: 3 days

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Move some functions and definitions from uipc_socket2.c to uipc_socket.c:

- Move sonewconn(), which creates new sockets for incoming connections on
listen sockets, so that all socket allocate code

Move some functions and definitions from uipc_socket2.c to uipc_socket.c:

- Move sonewconn(), which creates new sockets for incoming connections on
listen sockets, so that all socket allocate code is together in
uipc_socket.c.

- Move 'maxsockets' and associated sysctls to uipc_socket.c with the
socket allocation code.

- Move kern.ipc sysctl node to uipc_socket.c, add a SYSCTL_DECL() for it
to sysctl.h and remove lots of scattered implementations in various
IPC modules.

- Sort sodealloc() after soalloc() in uipc_socket.c for dependency order
reasons. Statisticize soalloc() and sodealloc() as they are now
required only in uipc_socket.c, and are internal to the socket
implementation.

After this change, socket allocation and deallocation is entirely
centralized in one file, and uipc_socket2.c consists entirely of socket
buffer manipulation and default protocol switch functions.

MFC after: 1 month

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