sys: Remove $FreeBSD$: one-line .c pattern

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

MFHead @347527

Sponsored by: The FreeBSD Foundation

ip6_randomflowlabel: Avoid blocking if random(4) is not available

If kern.random.initial_seeding.bypass_before_seeding is disabled, random(4)
and arc4random(9) will block indefinitely until enough e

ip6_randomflowlabel: Avoid blocking if random(4) is not available

If kern.random.initial_seeding.bypass_before_seeding is disabled, random(4)
and arc4random(9) will block indefinitely until enough entropy is available
to initially seed Fortuna.

It seems that zero flowids are perfectly valid, so avoid blocking on random
until initial seeding takes place.

Discussed with: bz (earlier revision)
Reviewed by: thj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D20011

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Merge ^/head r327169 through r327340.

Fix some typos.

Obtained from: OpenBSD (CVS v1.5)

netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license.

This bring back r327293 from OpenBSD, with the important difference that
we are now getting it from their ip6_id.c file.

Obtaine

netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license.

This bring back r327293 from OpenBSD, with the important difference that
we are now getting it from their ip6_id.c file.

Obtained from: OpenBSD (CVS v1.3)

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Start syncing changes from OpenBSD's ip6_id.c instead of ip_id.c.

correct non-repetitive ID code, based on comments from niels provos.
- seed2 is necessary, but use it as "seed2 + x" not "seed2 ^ x"

Start syncing changes from OpenBSD's ip6_id.c instead of ip_id.c.

correct non-repetitive ID code, based on comments from niels provos.
- seed2 is necessary, but use it as "seed2 + x" not "seed2 ^ x".
- skipping number is not needed, so disable it for 16bit generator (makes
the repetition period to 30000)

Obtained from: OpenBSD (CVS rev. 1.2)
MFC after: 1 week

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Revert r327293
netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license.

I was looking at the wrong file. There is an important merge that must be
done before I can bring this change.

netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license.

This file is supposed to be based on the OpenBSD CVS v1.6 but checking
the OpenBSD repository the license had already dropped the

netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license.

This file is supposed to be based on the OpenBSD CVS v1.6 but checking
the OpenBSD repository the license had already dropped the 2&3 clasues by
then. Catch up with the licensing.

Obtained from: OpenBSD (CVS 1.2)

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Merge ^/head r325842 through r325998.

spdx: initial adoption of licensing ID tags.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensou

spdx: initial adoption of licensing ID tags.

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.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes: yes
Differential Revision: https://reviews.freebsd.org/D13133

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sys/net*: minor spelling fixes.

No functional change.

Merge head

IFC @264767

MFC @ r259205 in preparation for some SVM updates. (for real this time)

Merge head r232040 through r257457.
M usr.sbin/portsnap/portsnap/portsnap.8
M usr.sbin/portsnap/portsnap/portsnap.sh
M usr.sbin/tcpdump/tcpdump/Makefile

Provide includes that are needed in these files, and before were read
in implicitly via if.h -> if_var.h pollution.

Sponsored by: Netflix
Sponsored by: Nginx, Inc.

Merge head r233826 through r256722.

IFC @256277

Approved by: ken (mentor)

Merge from head

IFC @ r255209

IFC @ r254014

- Use time_uptime instead of time_second in data structures for
PF_INET6 in kernel. This fixes various malfunction when the wall time
clock is changed. Bump __FreeBSD_version to 1000041.

- Use

- Use time_uptime instead of time_second in data structures for
PF_INET6 in kernel. This fixes various malfunction when the wall time
clock is changed. Bump __FreeBSD_version to 1000041.

- Use clock_gettime(CLOCK_MONOTONIC_FAST) in userland utilities.

MFC after: 1 month

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Clean up VCS Ids.

ANSIfy[1] plus some style cleanup nearby.

Discussed with: gnn, rwatson
Submitted by: Karl Sj?dahl - dunceor <dunceor gmail com> [1]
Approved by: re (rwatson)