MFC r325716:

Fix some nroff style issue

MFC r313436,r313437,r313438,r314587,r315687:

r313436:

Clarify #includes for hexdump(3) vs sbuf_hexdump(9)

hexdump(3) only requires libutil.h, whereas sbuf_hexdump(9) requires
sys/types.h (for ssize_t) and sys/sbuf.h

r313437:

Create link from hexdump(3) to sbuf_hexdump(9) as the manpage describes
sbuf_hexdump(9)'s behavior

r313438:

Clean up trailing and leading whitespace for variables to make it
consistent with the rest of the file and style.Makefile(9) a bit
more

r314587:

Correct MLINKS for sbuf_hexdump(9)

sbuf_hexdump(9) should be linked to sbuf(9), not hexdump(3). Another
review will be posted to deduplicate the sbuf_hexdump reference in
in hexdump(3) or at the very least make the information less duplicative.

r315687:

Document sbuf_hexdump(9) in just sbuf(9)

- Remove duplicate references to sbuf_hexdump(9) from hexdump(3).
sbuf_hexdump(9) already pointed back to hexdump(3) for implementation
details.
- Refer to sbuf_hexdump(9) instead of sbuf(9) for completeness

MFC, r284192:

------------------------------------------------------------------------
r284192 | ken | 2015-06-09 15:39:38 -0600 (Tue, 09 Jun 2015) | 102 lines

Add support for reading MAM attributes to camcontrol(8) and libcam(3).

MAM is Medium Auxiliary Memory and is most commonly found as flash
chips on tapes.

This includes support for reading attributes and decoding most
known attributes, but does not yet include support for writing
attributes or reporting attributes in XML format.

libsbuf/Makefile:
Add subr_prf.c for the new sbuf_hexdump() function. This
function is essentially the same function.

libsbuf/Symbol.map:
Add a new shared library minor version, and include the
sbuf_hexdump() function.

libsbuf/Version.def:
Add version 1.4 of the libsbuf library.

libutil/hexdump.3:
Document sbuf_hexdump() alongside hexdump(3), since it is
essentially the same function.

camcontrol/Makefile:
Add attrib.c.

camcontrol/attrib.c:
Implementation of READ ATTRIBUTE support for camcontrol(8).

camcontrol/camcontrol.8:
Document the new 'camcontrol attrib' subcommand.

camcontrol/camcontrol.c:
Add the new 'camcontrol attrib' subcommand.

camcontrol/camcontrol.h:
Add a function prototype for scsiattrib().

share/man/man9/sbuf.9:
Document the existence of sbuf_hexdump() and point users to
the hexdump(3) man page for more details.

sys/cam/scsi/scsi_all.c:
Add a table of known attributes, text descriptions and
handler functions.

Add a new scsi_attrib_sbuf() function along with a number
of other related functions that help decode attributes.

scsi_attrib_ascii_sbuf() decodes ASCII format attributes.

scsi_attrib_int_sbuf() decodes binary format attributes, and
will pass them off to scsi_attrib_hexdump_sbuf() if they're
bigger than 8 bytes.

scsi_attrib_vendser_sbuf() decodes the vendor and drive
serial number attribute.

scsi_attrib_volcoh_sbuf() decodes the Volume Coherency
Information attribute that LTFS writes out.

sys/cam/scsi/scsi_all.h:
Add a number of attribute-related structure definitions and
other defines.

Add function prototypes for all of the functions added in
scsi_all.c.

sys/kern/subr_prf.c:
Add a new function, sbuf_hexdump(). This is the same as
the existing hexdump(9) function, except that it puts the
result in an sbuf.

This also changes subr_prf.c so that it can be compiled in
userland for includsion in libsbuf.

We should work to change this so that the kernel hexdump
implementation is a wrapper around sbuf_hexdump() with a
statically allocated sbuf with a drain. That will require
a drain function that goes to the kernel printf() buffer
that can take a non-NUL terminated string as input.
That is because an sbuf isn't NUL-terminated until it is
finished, and we don't want to finish it while we're still
using it.

We should also work to consolidate the userland hexdump and
kernel hexdump implemenatations, which are currently
separate. This would also mean making applications that
currently link in libutil link in libsbuf.

sys/sys/sbuf.h:
Add the prototype for sbuf_hexdump(), and add another copy
of the hexdump flag values if they aren't already defined.

Ideally the flags should be defined in one place but the
implemenation makes it difficult to do properly. (See
above.)

Sponsored by: Spectra Logic Corporation

------------------------------------------------------------------------

MFC, r284192:

------------------------------------------------------------------------
r284192 | ken | 2015-06-09 15:39:38 -0600 (Tue, 09 Jun 2015) | 102 lines

Add support for reading MAM attributes to camcontrol(8) and libcam(3).

MAM is Medium Auxiliary Memory and is most commonly found as flash
chips on tapes.

This includes support for reading attributes and decoding most
known attributes, but does not yet include support for writing
attributes or reporting attributes in XML format.

libsbuf/Makefile:
Add subr_prf.c for the new sbuf_hexdump() function. This
function is essentially the same function.

libsbuf/Symbol.map:
Add a new shared library minor version, and include the
sbuf_hexdump() function.

libsbuf/Version.def:
Add version 1.4 of the libsbuf library.

libutil/hexdump.3:
Document sbuf_hexdump() alongside hexdump(3), since it is
essentially the same function.

camcontrol/Makefile:
Add attrib.c.

camcontrol/attrib.c:
Implementation of READ ATTRIBUTE support for camcontrol(8).

camcontrol/camcontrol.8:
Document the new 'camcontrol attrib' subcommand.

camcontrol/camcontrol.c:
Add the new 'camcontrol attrib' subcommand.

camcontrol/camcontrol.h:
Add a function prototype for scsiattrib().

share/man/man9/sbuf.9:
Document the existence of sbuf_hexdump() and point users to
the hexdump(3) man page for more details.

sys/cam/scsi/scsi_all.c:
Add a table of known attributes, text descriptions and
handler functions.

Add a new scsi_attrib_sbuf() function along with a number
of other related functions that help decode attributes.

scsi_attrib_ascii_sbuf() decodes ASCII format attributes.

scsi_attrib_int_sbuf() decodes binary format attributes, and
will pass them off to scsi_attrib_hexdump_sbuf() if they're
bigger than 8 bytes.

scsi_attrib_vendser_sbuf() decodes the vendor and drive
serial number attribute.

scsi_attrib_volcoh_sbuf() decodes the Volume Coherency
Information attribute that LTFS writes out.

sys/cam/scsi/scsi_all.h:
Add a number of attribute-related structure definitions and
other defines.

Add function prototypes for all of the functions added in
scsi_all.c.

sys/kern/subr_prf.c:
Add a new function, sbuf_hexdump(). This is the same as
the existing hexdump(9) function, except that it puts the
result in an sbuf.

This also changes subr_prf.c so that it can be compiled in
userland for includsion in libsbuf.

We should work to change this so that the kernel hexdump
implementation is a wrapper around sbuf_hexdump() with a
statically allocated sbuf with a drain. That will require
a drain function that goes to the kernel printf() buffer
that can take a non-NUL terminated string as input.
That is because an sbuf isn't NUL-terminated until it is
finished, and we don't want to finish it while we're still
using it.

We should also work to consolidate the userland hexdump and
kernel hexdump implemenatations, which are currently
separate. This would also mean making applications that
currently link in libutil link in libsbuf.

sys/sys/sbuf.h:
Add the prototype for sbuf_hexdump(), and add another copy
of the hexdump flag values if they aren't already defined.

Ideally the flags should be defined in one place but the
implemenation makes it difficult to do properly. (See
above.)

Sponsored by: Spectra Logic Corporation

------------------------------------------------------------------------