sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

netgraph/ng_bridge: add missing array terminator

PR: 267457
Reported by: Robert Morris <rtm@lcs.mit.edu>
MFC after: 1 week

netgraph/ng_bridge: learn MACs via control message

Add a new control message to move ethernet addresses to a given link
in ng_bridge(4). Send this message instead of doing the work directly.
This de

netgraph/ng_bridge: learn MACs via control message

Add a new control message to move ethernet addresses to a given link
in ng_bridge(4). Send this message instead of doing the work directly.
This decouples the read-only activity from the modification under a
more strict writer lock.

Decoupling the work is a prerequisite for multithreaded operation.

Approved by: manpages (bcr), kp (earlier version)
MFC: 3 weeks
Differential Revision: https://reviews.freebsd.org/D28516

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netgraph/ng_bridge: Merge internal structures

In a earlier version of ng_bridge(4) the exernal visible host entry
structure was a strict subset of the internal one. So internal view
was a direct an

netgraph/ng_bridge: Merge internal structures

In a earlier version of ng_bridge(4) the exernal visible host entry
structure was a strict subset of the internal one. So internal view
was a direct annotation of the external structure. This strict
inheritance was lost many versions ago. There is no need to
encapsulate a part of the internal represntation as a separate
structure.

This patch is a preparation to make the internal structure read only
in the data path in order to make ng_bridge(4) multithreaded.

Reviewed by: kp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28545

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netgraph/ng_bridge: Remove old table ABI

This was announced to happen after the 12 relases.
Remove a depeciated ABI.

The complete removal is for HEAD only. I'll remove the #define in
stable/13 as M

netgraph/ng_bridge: Remove old table ABI

This was announced to happen after the 12 relases.
Remove a depeciated ABI.

The complete removal is for HEAD only. I'll remove the #define in
stable/13 as MFC, so the code will still exist in 13.x, but will not
included by default. Earlier versions will not be affected.

Reviewed by: kp
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D28518

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netgraph/ng_bridge: Introduce "uplink" ports without MAC learning

The ng_bridge(4) node is designed to work in moderately small
environments. Connecting such a node to a larger network rapidly fills

netgraph/ng_bridge: Introduce "uplink" ports without MAC learning

The ng_bridge(4) node is designed to work in moderately small
environments. Connecting such a node to a larger network rapidly fills
the MAC table for no reason. It even become complicated to obtain data
from the gettable message, because the result is too large to
transmit.

This patch introduces, two new functionality bits on the hooks:
- Allow or disallow MAC address learning for incoming patckets.
- Allow or disallow sending unknown MACs through this hook.

Uplinks are characterized by denied learing while sending out
unknowns. Normal links are charaterized by allowed learning and
sending out unknowns.

Reviewed by: kp
Approved by: kp (mentor)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D23963

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net: clean up empty lines in .c and .h files

netgraph/ng_bridge: Reestablish old ABI

In order to be able to merge r353026 bring back support for the old
cookie API for a transition period in 12.x releases (and possibly 13)
before the old API c

netgraph/ng_bridge: Reestablish old ABI

In order to be able to merge r353026 bring back support for the old
cookie API for a transition period in 12.x releases (and possibly 13)
before the old API can be removed again entirely.

Suggested by: julian
Submitted by: Lutz Donnerhacke (lutz donnerhacke.de)
PR: 240787
Reviewed by: julian
MFC after: 2 weeks
X-MFC with: r353026
Differential Revision: https://reviews.freebsd.org/D21961

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Merge ^/head r352764 through r353315.

- Remove the compile time limit for number of links a ng_bridge node
can handle. Instead using an array on node private data, use per-hook
private data.
- Use NG_NODE_FOREACH_HOOK() to traverse

- Remove the compile time limit for number of links a ng_bridge node
can handle. Instead using an array on node private data, use per-hook
private data.
- Use NG_NODE_FOREACH_HOOK() to traverse through hooks instead of array.

PR: 240787
Submitted by: Lutz Donnerhacke <lutz donnerhacke.de>
Differential Revision: https://reviews.freebsd.org/D21803

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MFC r207680:

Add an optional "persistent" flag to ng_hub and ng_bridge, which if set,
disables automatic node shutdown when the last hook gets disconnected.

Reviewed by: julian

Merge svn+ssh://svn.freebsd.org/base/head@207793

Final update to current version of head in preparation for reintegration.

Add an optional "persistent" flag to ng_hub and ng_bridge, which if set,
disables automatic node shutdown when the last hook gets disconnected.

Reviewed by: julian

Use variable-sized arrays where appropriate.

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

Fix GCC warnings caused by initializing a zero length array. In the process,
simply things a bit by getting rid of 'struct ng_parse_struct_info' which
was useless because it only contained one field.

Fix GCC warnings caused by initializing a zero length array. In the process,
simply things a bit by getting rid of 'struct ng_parse_struct_info' which
was useless because it only contained one field.

MFC after: 2 weeks

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New netgraph node type for Ethernet bridging.
No ipfw support yet.

Use variable-sized arrays where appropriate.

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

Fix GCC warnings caused by initializing a zero length array. In the process,
simply things a bit by getting rid of 'struct ng_parse_struct_info' which
was useless because it only contained one field.

Fix GCC warnings caused by initializing a zero length array. In the process,
simply things a bit by getting rid of 'struct ng_parse_struct_info' which
was useless because it only contained one field.

MFC after: 2 weeks

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New netgraph node type for Ethernet bridging.
No ipfw support yet.