libdevinfo: Avoid false positives for the root0 sentinel value

Previously, a NULL pointer value was used to request the root0 device
at the top of the device tree. However, this meant that resource

libdevinfo: Avoid false positives for the root0 sentinel value

Previously, a NULL pointer value was used to request the root0 device
at the top of the device tree. However, this meant that resource
ranges from a rman with a NULL device pointer were annotated as being
owned by root0 instead of being unowned. Switch to a different value
for root0's sentinel to avoid the clash.

Since this is an ABI change, bump the SHLIB_MAJOR for libdevinfo to 7.

Reported by: jrtc27
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D48675

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Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

Merge ^/head r363739 through r363986.

devinfo: fix memory leak on error paths

Refactor to create devinfo_free_dev(). Call it to plug a memory leak
on two error paths in devinfo_init_devices().

Reported by: Coverity
MFC after: 2 weeks

devinfo: fix memory leak on error paths

Refactor to create devinfo_free_dev(). Call it to plug a memory leak
on two error paths in devinfo_init_devices().

Reported by: Coverity
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon

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Update to device enumeration protocol 2

The new protocol from the kernel encodes things as a string table,
extract it into fields. strdup the strings, and free them when we're
done.

Differential Re

Update to device enumeration protocol 2

The new protocol from the kernel encodes things as a string table,
extract it into fields. strdup the strings, and free them when we're
done.

Differential Revision: https://reviews.freebsd.org/D15629

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Sanity check the return from the kernel.

We should be getting back as many bytes as we asked for, and we
don't handle shortages at all, so just reject anything that's
not right.

Differential Revisi

Sanity check the return from the kernel.

We should be getting back as many bytes as we asked for, and we
don't handle shortages at all, so just reject anything that's
not right.

Differential Revision: https://reviews.freebsd.org/D15629

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There's no meaningful errno when there's a version mismatch, so use
warnx. Also, report the mis-matched versions.

Merge ^/head r326936 through r327149.

Bump number that's an insane number of devices from 1,000 to 10,000. I
have access to machines that are pushing 400 devices. When 1,000 was
selected, it was rare to get even 40 or 50 devices. Bump th

Bump number that's an insane number of devices from 1,000 to 10,000. I
have access to machines that are pushing 400 devices. When 1,000 was
selected, it was rare to get even 40 or 50 devices. Bump the limit by
10x to keep up with the times.

Sponsored by: Netflix

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lib: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
pr

lib: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Make the variadic macro debug() comply to C99.

Clear devinfo_generation in devinfo_free() since we are freeing all of the
cached state. Otherwise, a subsequent call to devinfo_init() would succeed
without reading the device tree from the kernel

Clear devinfo_generation in devinfo_free() since we are freeing all of the
cached state. Otherwise, a subsequent call to devinfo_init() would succeed
without reading the device tree from the kernel thinking that the cached
state was up to date since the generation count was the same. However,
since the cached state was actually free'd, attempts to examine the tree
after the second devinfo_init() would fail.

Reported by: Juho Vuori juho dot vuori at kepa dot fi
Submitted by: Stefan Farfeleder stefan at fafoe dot narf dot at
Approved by: re (dwhite)
MFC after: 1 week

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Remove unused variables. Whitespace cleaning.

Fix typo in a comment.

Prefer C99's __func__ over GCC's __FUNCTION__.

Expose the new kernel data structures to libdevinfo:
o Added dd_pnpinfo, dd_location, dd_devflags, dd_flags and dd_state
o Copy/initialize these as necessary.
o Document the changes to the interfa

Expose the new kernel data structures to libdevinfo:
o Added dd_pnpinfo, dd_location, dd_devflags, dd_flags and dd_state
o Copy/initialize these as necessary.
o Document the changes to the interface in devinfo.3.

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Implement __FBSDID()

Include string.h for the strlen() prototype to quiet a warning.

This is the Device Information Library, libdevinfo.

The devinfo library provides access to the kernel's internal device
hierarchy and to the I/O resource manager. The library uses a
sysctl(9) inter

This is the Device Information Library, libdevinfo.

The devinfo library provides access to the kernel's internal device
hierarchy and to the I/O resource manager. The library uses a
sysctl(9) interface to obtain a snapshot of the kernel's state which
is then made available to the application.

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