Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

libifconfig: Overhaul ifconfig_media_* interfaces

Define an ifmedia_t type to use for ifmedia words.

Add ifconfig_media_lookup_* functions to lookup ifmedia words by name.

Get media options as an

libifconfig: Overhaul ifconfig_media_* interfaces

Define an ifmedia_t type to use for ifmedia words.

Add ifconfig_media_lookup_* functions to lookup ifmedia words by name.

Get media options as an array of option names rather than formatting it
as a comma-delimited list into a buffer.

Sprinkle const on static the static description tables for peace of
mind.

Don't need to zero memory allocated by calloc.

Reviewed by: kp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D29029

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libifconfig: Add a symbol map

This is a no-op for now since libifconfig is only built as a static lib.

Reviewed by: freqlabs, kp, adrian
Differential Revision: https://reviews.freebsd.org/D28119

libifconfig now depends on libm due to usage of log10().

ld.bfd in particular requires -lm to come after libifconfig on the
command line when linking rescue.

Reviewed by: freqlabs, adrian
Different

libifconfig now depends on libm due to usage of log10().

ld.bfd in particular requires -lm to come after libifconfig on the
command line when linking rescue.

Reviewed by: freqlabs, adrian
Differential Revision: https://reviews.freebsd.org/D26258

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MFH

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

Merge ^/head r364051 through r364081.

Move ifconfig SFP status functionality into libifconfig

libifconfig_sfp.h provides an API in libifconfig for querying SFP module
properties, operational status, and vendor strings, as well as descri

Move ifconfig SFP status functionality into libifconfig

libifconfig_sfp.h provides an API in libifconfig for querying SFP module
properties, operational status, and vendor strings, as well as descriptions
of the various fields, string conversions, and other useful helpers for
implementing user interfaces.

SFP module status is obtained by reading registers via an I2C interface.
Descriptions of these registers and the values therein have been collected
in a Lua table which is used to generate all the boilerplace C headers and
source files for accessing these values, their names, and descriptions.
The generated code is fully commented and readable.

This is the first use of libifconfig in ifconfig itself. For now, the
scope remains very limited. Over time, more of ifconfig will be replaced
with libifconfig.

Some minor changes to the formatting of ifconfig output have been made:
- Module memory hex dumps are indented one extra space as a result of using
hexdump(3) instead of a bespoke hex dump function.
- Media descriptions have an added two-character short-name in parenthesis.
- QSFP modules were incorrectly displaying TX bias current as power. Now
TX channels display bias current, and this change has been made for both
SFP and QSFP modules for consistency.

A Lua binding for libifconfig including this functionality is implemented
but has not been included in this commit. The plan is for it to be
committed after dynamic module loading has been enabled in flua.

Reviewed by: kp, melifaro
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D25494

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libifconfig: Add function to get bridge status

The new function operates similarly to ifconfig_lagg_get_lagg_status and
likewise is accompanied by a function to free the bridge status data structure

libifconfig: Add function to get bridge status

The new function operates similarly to ifconfig_lagg_get_lagg_status and
likewise is accompanied by a function to free the bridge status data structure.

I have included in this patch the relocation of some strings describing STP
parameters and the PV2ID macro from ifconfig into net/if_bridgevar.h as they
are useful for consumers of libifconfig.

Reviewed by: kp, melifaro, mmacy
Approved by: mmacy (mentor)
MFC after: 1 week
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D25460

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wlandebug: Add include path for libifconfig as it is a internallib

Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D24172

MFhead@r344786

Merge ^/head r344513 through r344548.

Make libifconfig INTERNALLIB

Instead of PRIVATELIB + NO_PIC. This avoids the need for the wlandebug
PIE special case added in r344211, and provides a stronger guarantee
against 3rd party software c

Make libifconfig INTERNALLIB

Instead of PRIVATELIB + NO_PIC. This avoids the need for the wlandebug
PIE special case added in r344211, and provides a stronger guarantee
against 3rd party software coming to depend on the API or ABI.

If / when we declare the API/ABI to be stable we can make it a normal
library.

Discussed with: bapt
Sponsored by: The FreeBSD Foundation

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libifconfig: multiple feature additions

Added the ability to:

* Create virtual interfaces
* Create vlan interfaces
* Get interface fib
* Get interface groups
* Get interface status
* Get nd6 info
*

libifconfig: multiple feature additions

Added the ability to:

* Create virtual interfaces
* Create vlan interfaces
* Get interface fib
* Get interface groups
* Get interface status
* Get nd6 info
* Get media status
* Get additional ifaddr info in a convenient struct
* Get vhids
* Get carp info
* Get lagg and laggport status
* Iterate over all interfaces and ifaddrs

And add more examples, too.

Note that this is a backwards-incompatible change. But that's ok, because it's
a private library.

MFC after: 3 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D14463

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Merge ^/head r305687 through r305890.

Mark libifconfig as private until the API/ABI is stable

libifconfig is still experimental and under active development.
To avoid making any ABI promises, mark the library as private

Suggested by: b

Mark libifconfig as private until the API/ABI is stable

libifconfig is still experimental and under active development.
To avoid making any ABI promises, mark the library as private

Suggested by: bapt
Reviewed by: kp

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MFhead @ r305314

Merge ^/head r305220 through r305300.

Renaming libifc to libifconfig in response to feedback on initial commit of
this library. Sticking to 'libifconfig' (and 'ifconfig_' as function prefix)
should reduce chances of namespace collisions,

Renaming libifc to libifconfig in response to feedback on initial commit of
this library. Sticking to 'libifconfig' (and 'ifconfig_' as function prefix)
should reduce chances of namespace collisions, make it more clear what the
library does, and be more in line with existing libraries.

Submitted by: Marie Helene Kvello-Aune <marieheleneka@gmail.com>
Differential Revision: https://reviews.freebsd.org/D7742
Reviewed by: cem, kp

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