kernel - Disable various dev accesses for RESTRICTEDROOT environments

* Do not allow CAM (e.g. /dev/sg0 and so forth) to be accessed if
RESTRICTEDROOT is active. Note that RESTRICTEDROOT is autom

kernel - Disable various dev accesses for RESTRICTEDROOT environments

* Do not allow CAM (e.g. /dev/sg0 and so forth) to be accessed if
RESTRICTEDROOT is active. Note that RESTRICTEDROOT is automatically
set for jails.

* Restrict writes to /dev/random and /dev/urandom

* Also restrict evdev, kbd, syscons, pci, console, devctl

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kernel - Change callout in struct ccb_hdr

* Change the callout declaration in struct ccb_hdr from an embedded
structure to a pointer, add padding to get the whole structure to its
original size

kernel - Change callout in struct ccb_hdr

* Change the callout declaration in struct ccb_hdr from an embedded
structure to a pointer, add padding to get the whole structure to its
original size (prior to the recent callout patch).

* This removes an improper ABI dependency on the kernel struct callout
structure which was causing 'camcontrol', and 'smartctl' (from
smartmontools) to fail.

Testing: dillon, tuxillo

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kernel: Remove numerous #include <sys/thread2.h>.

Most of them were added when we converted spl*() calls to
crit_enter()/crit_exit(), almost 14 years ago. We can now
remove a good chunk of them agai

kernel: Remove numerous #include <sys/thread2.h>.

Most of them were added when we converted spl*() calls to
crit_enter()/crit_exit(), almost 14 years ago. We can now
remove a good chunk of them again for where crit_*() are
no longer used.

I had to adjust some files that were relying on thread2.h
or headers that it includes coming in via other headers
that it was removed from.

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kernel - Fix CAM peripheral error handling

* cam_periph.c was bcopy()ing the *ENTIRE* saved ccb back to the
original when working through certain error results. This completely
destroys linked

kernel - Fix CAM peripheral error handling

* cam_periph.c was bcopy()ing the *ENTIRE* saved ccb back to the
original when working through certain error results. This completely
destroys linked list entry fields.

* Refactor by hacking a restore_ccb() function which does not copy
over the link list entry fields or the callout structure.

* Fixes panics with CDs, particularly audio CDs, and can also fix
other panics.

Panics are related to situations where an AHCI error or errors occur
while multiple CCBs are queued.

* Also always initialize the state tracking field for various scsi
periphals to ensure that stale data does not result in improper
processing in scsi/*.c's *done() functions.

Reported-by: htse

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buf - Remove B_ORDERED, Incidental CAM MPSAFE

* Remove support for B_ORDERED. Most drivers ignore it, and it is basically
unusable.

* The CAM "xpt", "pass", and "sg" devices are MPSAFE, flag the

buf - Remove B_ORDERED, Incidental CAM MPSAFE

* Remove support for B_ORDERED. Most drivers ignore it, and it is basically
unusable.

* The CAM "xpt", "pass", and "sg" devices are MPSAFE, flag them
appropriately.

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kernel/scsi: Do not announce pass/sg in bootverbose.

At least on one machine it causes reprobe of da0 that ends up with
strange geometry, stuck boot and other weirdness. TBI.

For now disable these,

kernel/scsi: Do not announce pass/sg in bootverbose.

At least on one machine it causes reprobe of da0 that ends up with
strange geometry, stuck boot and other weirdness. TBI.

For now disable these, cause acpica update is comming.

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kernel/cam: Remove unneeded dev_ops assignments.

compile_dev_ops() takes care of assigning no*() to uninitialized ops.

kernel/bus: Remove some unused variables and put others in #ifdef...

Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

DEVFS - remove dev_ops_add(), dev_ops_get(), and get_dev()

DEVFS - Bring in Alex's GSOC kernel adjustments.

This is a rollup commit bringing in Alex Hornung's GSOC adjustments
to the main kernel codebase for DEVFS.

Submitted-by: Alex Hornung <ahornung@gmai

DEVFS - Bring in Alex's GSOC kernel adjustments.

This is a rollup commit bringing in Alex Hornung's GSOC adjustments
to the main kernel codebase for DEVFS.

Submitted-by: Alex Hornung <ahornung@gmail.com>

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CAM - Silence console spew on bus-rescan

Silence the console spew that occurs when rescanning a SCSI bus. This
is primarily so the AHCI driver can just have CAM re-test all the targets
when new tar

CAM - Silence console spew on bus-rescan

Silence the console spew that occurs when rescanning a SCSI bus. This
is primarily so the AHCI driver can just have CAM re-test all the targets
when new targets are added or deleted.

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Sync CAM with FreeBSD using lockmgr locks instead of mutexes.
Note: This is mostly a code sync with FreeBSD which improves stability
in addition to the items listed below. This provides a framework

Sync CAM with FreeBSD using lockmgr locks instead of mutexes.
Note: This is mostly a code sync with FreeBSD which improves stability
in addition to the items listed below. This provides a framework for
releasing the mplock, but for now it's still there.

Add an xpt_print function to reduce most of the xpt_print_path/printf
pairs. Convert the core code to use it.

Initial cut at Basic Domain Validation.

Make cam_xpt's pronouncements match camcontrol (Tagged -> Command) Queueing.

Pay attention to return value from xpt_bus_register in xpt_init.

Add an xpt_rescan function and a thread that will field rescan requests.
The purpose of this is to allow a SIM (or other entities) to request a bus
rescan and have it then fielded in a different (process) context from the
caller.

Check the return value from cam_periph_acquire.

Drop the periph/sim lock when calling disk_destroy().

Drop the topology lock before calling the periph oninvalidate and dtor
vectors.

For the XPT_SASYNC_CB operation, only decouple the broadcast to the bus
and device lists instead of decoupling the whole operation. This avoids
problems with SIMs going away.

Split the camisr into per-SIM done queues. This optimizes the locking a
little bit and allows for direct dispatch of the doneq from certain
contexts that would otherwise face recursive locking problems.

Zero the CCBs when mallocing them.

Only schedule the xpt_finishconfig_task once.

Eliminate the use of M_TEMP.

Add a helper function for registering async callbacks.

Release the bus reference that is acquired when doing a CAMIOCOMMAND ioctl.

Zero scsi_readcapacity allocations so we can really tell if there has
been data returned.

Remove duplicate includes and fix typos.

Add a bunch of definitions and structures to support newer drivers.

When probing a newly found device, don't automatically assume that the
device supports retrieving a serial number. Instead, first query the
list of VPD pages it does support, and only query the serial number if
it's supported, else silently move on. This eliminates a lot of noise
during verbose booting, and will likely eliminate the need for most
NOSERIAL quirks.

Reduce diffs from FreeBSD.

Obtained-from: FreeBSD

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Spelling fix.

Obtained-from: FreeBSD

Fix typo in comment.

Obtained-from: FreeBSD

Check the void * argument in the AC_FOUND_DEV case against NULL.

Obtained-from: FreeBSD

Rewrite of the CAM error recovery code.

Some of the major changes include:

- The SCSI error handling portion of cam_periph_error() has
been broken out into a number of subfunctions to better

Rewrite of the CAM error recovery code.

Some of the major changes include:

- The SCSI error handling portion of cam_periph_error() has
been broken out into a number of subfunctions to better
modularize the code that handles the hierarchy of SCSI errors.
As a result, the code is now much easier to read.

- String handling and error printing has been significantly
revamped. We now use sbufs to do string formatting instead
of using printfs (for the kernel) and snprintf/strncat (for
userland) as before.

There is a new catchall error printing routine,
cam_error_print() and its string-based counterpart,
cam_error_string() that allow the kernel and userland
applications to pass in a CCB and have errors printed out
properly, whether or not they're SCSI errors. Among other
things, this helped eliminate a fair amount of duplicate code
in camcontrol.

We now print out more information than before, including
the CAM status and SCSI status and the error recovery action
taken to remedy the problem.

Obtained-from: FreeBSD

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Change the peripheral driver list from a linker set to module driven
driver registration. This should allow things like da, sa, cd etc to be
in seperate KLD's to the cam core and make them preloadab

Change the peripheral driver list from a linker set to module driven
driver registration. This should allow things like da, sa, cd etc to be
in seperate KLD's to the cam core and make them preloadable.

Obtained-from: FreeBSD

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Remove duplicate sys/proc.h.

Don't include <sys/buf.h> twice.

Rename printf -> kprintf in sys/ and add some defines where necessary
(files which are used in userland, too).

Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t. Change struct specinfo to struct cdev. The name 'cdev' was taken
from FreeBSD. Remove the dev_t shim for the ker

Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t. Change struct specinfo to struct cdev. The name 'cdev' was taken
from FreeBSD. Remove the dev_t shim for the kernel.

This commit generally removes the overloading of 'dev_t' between userland and
the kernel.

Also fix a bug in libkvm where a kernel dev_t (now cdev_t) was not being
properly converted to a userland dev_t.

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Rename malloc->kmalloc, free->kfree, and realloc->krealloc. Pass 1

MASSIVE reorganization of the device operations vector. Change cdevsw
to dev_ops. dev_ops is a syslink-compatible operations vector structure
similar to the vop_ops structure used by vnodes.

Remov

MASSIVE reorganization of the device operations vector. Change cdevsw
to dev_ops. dev_ops is a syslink-compatible operations vector structure
similar to the vop_ops structure used by vnodes.

Remove a huge number of instances where a thread pointer is still being
passed as an argument to various device ops and other related routines.
The device OPEN and IOCTL calls now take a ucred instead of a thread pointer,
and the CLOSE call no longer takes a thread pointer.

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Major BUF/BIO work commit. Make I/O BIO-centric and specify the disk or
file location with a 64 bit offset instead of a 32 bit block number.

* All I/O is now BIO-centric instead of BUF-centric.

*

Major BUF/BIO work commit. Make I/O BIO-centric and specify the disk or
file location with a 64 bit offset instead of a 32 bit block number.

* All I/O is now BIO-centric instead of BUF-centric.

* File/Disk addresses universally use a 64 bit bio_offset now. bio_blkno
no longer exists.

* Stackable BIO's hold disk offset translations. Translations are no longer
overloaded onto a single structure (BUF or BIO).

* bio_offset == NOOFFSET is now universally used to indicate that a
translation has not been made. The old (blkno == lblkno) junk has all
been removed.

* There is no longer a distinction between logical I/O and physical I/O.

* All driver BUFQs have been converted to BIOQs.

* BMAP, FREEBLKS, getblk, bread, breadn, bwrite, inmem, cluster_*,
and findblk all now take and/or return 64 bit byte offsets instead
of block numbers. Note that BMAP now returns a byte range for the before
and after variables.

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