MFC r337160:
Do not blindly include illumos kernel headers instead of user-space.
It is not needed now, and I doubt it much helped at all, creating more
confusions then good.

MFC r320152 (by avg): fstyp: move sys/ include path after zfs include paths

The reason is that FreeBSD refcount.h shadows ZFS refcount.h and that
will lead to a build error after a planned import of the ARC buf data
scatter-ization.
It's possible that some day we will have an opposite problem where
a ZFS header would shadow an essential FreeBSD header.
So, we need to think about a better long term solution.

MFC r314451,r314452,r314453,r314456,r314457,r314458,r314459,r314460,r314461,r314462,r314464,r314466,r314468,r314470,r314472,r314478:

r314451:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

The SRCTOP conversion simplifies pathing in make/displayed output.

Also, while here, change a hardcoded path to ar5523.bin.uu in the make target
with ${.ALLSRC} .

r314452:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

r314453:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

r314456:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314457:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

The SRCTOP conversion simplifies pathing in make/displayed output.

Also, while here, change a hardcoded path to ${RPCDIR}/ypupdate_prot.x in
the make targets with ${.ALLSRC} .

r314458:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314459:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314460:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314461:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314462:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

The SRCTOP conversion simplifies pathing in make/displayed output.

Also, while here, change a hardcoded path to ${RPCDIR}/ypxfrd.x in
the make targets with ${.ALLSRC} .

r314464:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314466:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314468:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

Also, use :H where possible/sensical to manipulate .CURDIR-relative paths

This simplifies pathing in make/displayed output.

r314470:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314472:

Simplify/improve idioms in usr.sbin/ntp Makefiles

- Use SRCTOP-relative paths to other directories instead of
.CURDIR-relative ones. This simplifies pathing in make/displayed output.
- Also, use :H where possible/sensical to manipulate .CURDIR-relative
paths
- Remove superfluous bsd.own.mk .includes which are already handled via
src.opts.mk .includes

r314478:

Simplify idioms in Makefiles further

- Use SRCTOP-relative paths instead of .CURDIR-relative ones where possible
- Use :H to manipulate .CURDIR in areas instead of ..-relative paths.

MFC r314659,r314676:

r314659:

usr.sbin: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

r314676:

Fix build after r314656

Some of the changes I introduced to use .ALLSRC were correct in spirit,
but incorrect in reality -- in particular, ../Makefile.inc hadn't been
pulled in via bsd.init.mk (via bsd.lib.mk, bsd.prog.mk), so the value
of .ALLSRC (evaluated immediately) was empty. .include bsd.init.mk
explicitly so we can be certain that the values used as dependencies in
the targets are defined when the target recipe has been evaluated.

Reminder: thou shalt separate out separate functional changes before
committing them.

(YUGE) Pointyhat to: ngie
In collaboration with: bdrewery

MFC r312003 by cem:

fstyp(8): Detect exFAT filesystems

Simply detect the exFAT filesystem name in the Volume Boot Record
(superblock).

MFC r314963:

Fix harmless mismerge from r286964

MFC after: 3 days
Sponsored by: Spectra Logic Corp

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Fix includes in usr.sbin/fstyp/zfs.c

Approved by: bapt (mentor)
MFC after: 1 week
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D4710

Fix LDADD/DPADD that should be LIBADD.

Sponsored by: EMC / Isilon Storage Division

Convert to LIBADD

Sponsored by: EMC / Isilon Storage Division

Eliminate unneeded copying of vdev data, goto, etc. and add a note
that checksum of vdev label should be checked (which is not done
currently).

No functional change.

While I'm there, raise WARNS to 2.

Reviewed by: allanjude
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D3508

Add ATF functional tests for fstyp(8). No ZFS or GELI tests yet.

Reviewed by: trasz, ngie
MFC after: 2 weeks
Sponsored by: SpectraLogic
Differential Revision: https://reviews.freebsd.org/D2801

Switch fstyp build to toggle ZFS support on WITHOUT_ZFS rather than WITHOUT_CDDL

PR: 200976
Approved by: imp
MFC after: 1 week
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D2045

Fix the build for gcc by lowering the WARNS level

Approved by: sbruno
X-MFC-With: r284589

Add the ability to detect ZFS and GELI encrypted file systems to fstyp(8)

Functionality is hidden behind the -u flag to avoid confusing automounters

PR: 200823
Reviewed by: asomers, eadler, wblock (man page)
Approved by: trasz
MFC after: 10 days
Relnotes: yes
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D2045

Add fstyp(8). This utility, named after its SVR4 counterpart, detects
filesystems. It differs from file(1) in that it gives machine-parseable
output, it outputs filesystem labels, doesn't get confused by other
formats metadata, and runs in Capsicum sandbox.

Differential Revision: https://reviews.freebsd.org/D1255
Relnotes: yes
Sponsored by: The FreeBSD Foundation