Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges. These may
require some future tweaking.

Sponsored by: nCircle Network Security, Inc.
Obtained from: TrustedBSD Project
Discussed on: arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
Alex Lyashkov <umka at sevcity dot net>,
Skip Ford <skip dot ford at verizon dot net>,
Antoine Brodin <antoine dot brodin at laposte dot net>

/* -> /*- for license, minor formatting changes

Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.

add missing #include <sys/module.h>

Device megapatch 4/6:

Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.

The present defaults for the open and close for device drivers which
provide no methods does not make any sense, and is not used by any
driver.

It is a pretty hard to come up with even a theoretical concept of
a device driver which would always fail open and close with ENODEV.

Change the defaults to be nullopen() and nullclose() which simply
does nothing.

Remove explicit initializations to these from the drivers which
already used them.

Use __FBSDID().

Note that MAJOR_AUTO is now the default if d_maj is not initialized. This
is more robust and prevents the hijacking of /dev/console for the typical
mistake.

Remove unneeded MAJOR_AUTO uses, it is only needed explicitly now if the
driver source has cross-branch compatibility to old releases.

Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by: re(scottl)

Use a character device and ioctl() for communication between libncp
and the kernel instead of adding more syscalls at runtime. As a bonus,
you can now restrict access to the kernel NCP interface with chmod.

Catch up with KSE changes.

Reviewed by: tjr

Move bindery authentication ncps to ncp_ncp.c file. ncp_login.c will stay
empty for a while.

Major update of NCP requester:

Use mchain API to work with mbuf chains.

Do not depend on INET and IPX options.

Allocate ncp_rq structure dynamically to prevent possible stack overflows.

Let ncp_request() dispose control structure if request failed.

Move all NCP wrappers to ncp_ncp.c file and all NCP request processing
functions to ncp_rq.c file.

Improve reconnection logic.

Misc style fixes.

nwfs depends on ncp

Remove unnessary includes.

Import kernel part of ncplib: netncp and nwfs

Reviewed by: msmith, peter
Obtained from: ncplib