Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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ppp(8): fix code producing debugging logs

Fix several cases when long buffer is copied to shorter one
using snprintf that results in contents truncation and
clobbering unsaved errno value and creati

ppp(8): fix code producing debugging logs

Fix several cases when long buffer is copied to shorter one
using snprintf that results in contents truncation and
clobbering unsaved errno value and creation of misleading logs.

PR: 218517
Approved by: avg (mentor)
MFC after: 1 month

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various: general adoption of SPDX licensing ID tags.

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

various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified 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.

No functional change intended.

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Merge ^/head r323559 through r325504.

MFhead@r325199

ppp(8): style(9) fix after r325157

Approved by: mav (mentor)

Fix ppp(8) to add RTF_HOST flag to created host route.

Reported by: Mike Tancsa <mike@sentex.net>
Approved by: avg (mentor)
MFC After: 1 week

MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

Merge head up to r263906.

Garbage collect long time obsoleted (or never used) stuff from routing API.

Merge from head

Merge from head up to r188941 (last revision before the USB stack switch)

Merge from HEAD

Conditionally add the interface name and address if available
so that a ppp running in `receiver' (server) mode can properly
update routes, for example to update the MTU.

Submitted by: loos.br gmail

Conditionally add the interface name and address if available
so that a ppp running in `receiver' (server) mode can properly
update routes, for example to update the MTU.

Submitted by: loos.br gmail.com (Luiz Otavio O Souza)
PR: bin/130159
PR: kern/125079, kern/122068, bin/126892
MFC after: 3 days

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While we currently still seem to have a gateway address, for future
stability, check for gw to be set before adding the flag and the address
to the routing message.

r186308, backed out in r191305, a

While we currently still seem to have a gateway address, for future
stability, check for gw to be set before adding the flag and the address
to the routing message.

r186308, backed out in r191305, already tried to do that, and in addition
ignore AF_LINK types of gateway addresses to work around a problem that
r167797 had introduced on the kernel side always setting RTF_GATEWAY if a
gateway address was passed into the kernel.
The proper solution for this is still under discussion so I am hesitant to
re-add the special AF_LINK treatment for now.

MFC after: 3 days

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Back out r186308:

in case of AF_LINK, which the kernel still returns for an RTAX_GATEWAY
as an empty sockaddr_dl in the classic tun<n> case.
Copying the address into the message payload, but not the

Back out r186308:

in case of AF_LINK, which the kernel still returns for an RTAX_GATEWAY
as an empty sockaddr_dl in the classic tun<n> case.
Copying the address into the message payload, but not the RTA_GATEWAY
flag results in rt_xaddrs() in the kernel tripping over that and parsing
the next attribute set with a flag, i.e. RTA_NETMASK, with the gateway
address, resulting in bogus route entry.

MFC after: 3 days

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MFH @ 186335

The ppp application relies on the if_tun interface to properly
install a p2p host route between the end points. The ppp module
upates this router based on user configuration later on. The
rt_Update()

The ppp application relies on the if_tun interface to properly
install a p2p host route between the end points. The ppp module
upates this router based on user configuration later on. The
rt_Update() seems to always set the RTF_GATEWAY flag, which is
broken.

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This main goals of this project are:
1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
possible to allow for some paralle

This main goals of this project are:
1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
possible to allow for some parallelism in the search operations
3. simplify the logic in the routing code,

The most notable end result is the obsolescent of the route
cloning (RTF_CLONING) concept, which translated into code reduction
in both IPv4 ARP and IPv6 NDP related modules, and size reduction in
struct rtentry{}. The change in design obsoletes the semantics of
RTF_CLONING, RTF_WASCLONE and RTF_LLINFO routing flags. The userland
applications such as "arp" and "ndp" have been modified to reflect
those changes. The output from "netstat -r" shows only the routing
entries.

Quite a few developers have contributed to this project in the
past: Glebius Smirnoff, Luigi Rizzo, Alessandro Cerri, and
Andre Oppermann. And most recently:

- Kip Macy revised the locking code completely, thus completing
the last piece of the puzzle, Kip has also been conducting
active functional testing
- Sam Leffler has helped me improving/refactoring the code, and
provided valuable reviews
- Julian Elischer setup the perforce tree for me and has helped
me maintaining that branch before the svn conversion

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Cast unsigned variables to int

Add a bunch of malloc() return checks

PR: 71592
Submitted by: Dan Lukes <dan@obluda.cz> with further changes

Make ppp WARNS=5 clean