tpcdump: Update to 4.99.4

Local changes:

- Update some local modifications to fix build
- Synch config.h with upstream as much as possible

Changelog: https://git.tcpdump.org/tcpdump/blob/55bc126b0216cfe409b8d6bd378f65679d136ddf:/CHANGES
Reviewed by: emaste
Obtained from: https://www.tcpdump.org/release/tcpdump-4.99.4.tar.gz
Sponsored by: The FreeBSD Foundation

tcpdump: add missing pf reasons and actions

Reviewed by: kp
Sponsored by: InnoGames GmbH
Differential Revision: https://reviews.freebsd.org/D39586

pf: Introduce ridentifier

Allow users to set a number on rules which will be exposed as part of
the pflog header.
The intent behind this is to allow users to correlate rules across
updates (remember that pf rules continue to exist and match existing
states, even if they're removed from the active ruleset) and pflog.

Obtained from: pfSense
MFC after: 3 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D32750

tcpdump: Log uid on pflog interfaces

If pf logs the user id ('pass out log (user)') have tcpdump also print
this.

Example output:
00:00:00.000000 rule 0/0(match) [uid 1001]: pass out on vtnet0: (tos 0x0, ttl 64, id 57539, offset 0, flags [none], proto UDP (17), length 55)
172.16.2.2.18337 > 172.16.2.1.53: [bad udp cksum 0x5c58 -> 0x16e4!] 40222+ A? google.be. (27)

PR: 122773
Differential Revision: https://reviews.freebsd.org/D17625

Update tcpdump to 4.9.0.

It fixes many buffer overflow in different protocol parsers, but none of
them are critical, even in absense of Capsicum.

Security: CVE-2016-7922, CVE-2016-7923, CVE-2016-7924, CVE-2016-7925
Security: CVE-2016-7926, CVE-2016-7927, CVE-2016-7928, CVE-2016-7929
Security: CVE-2016-7930, CVE-2016-7931, CVE-2016-7932, CVE-2016-7933
Security: CVE-2016-7934, CVE-2016-7935, CVE-2016-7936, CVE-2016-7937
Security: CVE-2016-7938, CVE-2016-7939, CVE-2016-7940, CVE-2016-7973
Security: CVE-2016-7974, CVE-2016-7975, CVE-2016-7983, CVE-2016-7984
Security: CVE-2016-7985, CVE-2016-7986, CVE-2016-7992, CVE-2016-7993
Security: CVE-2016-8574, CVE-2016-8575, CVE-2017-5202, CVE-2017-5203
Security: CVE-2017-5204, CVE-2017-5205, CVE-2017-5341, CVE-2017-5342
Security: CVE-2017-5482, CVE-2017-5483, CVE-2017-5484, CVE-2017-5485
Security: CVE-2017-5486

MFV r285191: tcpdump 4.7.4.

Also, the changes made in r272451 and r272653 that were lost in the
merge of 4.6.2 (r276788) have been restored.

PR: 199568
Differential Revision: https://reviews.freebsd.org/D3007
Reviewed by: brooks, hiren
Approved by: jmallett (mentor)
MFC after: 1 month

MFV r276761: tcpdump 4.6.2.

MFC after: 1 month

Merge tcpdump 4.2.1.

MFC after: 2 weeks

Merge tcpdump-4.1.1.

Merge tcpdump 4.0.0 from the vendor branch.

Flatten vendor/tcpdump and remove keyword expansion.

Import of tcpdump v3.9.8

Import of tcpdump v3.9.4

Virgin import of tcpdump v3.9.1 (alpha 096) from tcpdump.org

Import tcpdump 3.8.3, from http://www.tcpdump.org/releases/tcpdump-3.8.3.tar.gz

tcpdump: add missing pf reasons and actions

Reviewed by: kp
Sponsored by: InnoGames GmbH
Differential Revision: https://reviews.freebsd.org/D39586

pf: Introduce ridentifier

Allow users to set a number on rules which will be exposed as part of
the pflog header.
The intent behind this is to allow users to correlate rules across
updates (remember that pf rules continue to exist and match existing
states, even if they're removed from the active ruleset) and pflog.

Obtained from: pfSense
MFC after: 3 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D32750

tcpdump: Log uid on pflog interfaces

If pf logs the user id ('pass out log (user)') have tcpdump also print
this.

Example output:
00:00:00.000000 rule 0/0(match) [uid 1001]: pass out on vtnet0: (tos 0x0, ttl 64, id 57539, offset 0, flags [none], proto UDP (17), length 55)
172.16.2.2.18337 > 172.16.2.1.53: [bad udp cksum 0x5c58 -> 0x16e4!] 40222+ A? google.be. (27)

PR: 122773
Differential Revision: https://reviews.freebsd.org/D17625

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Import of tcpdump v3.9.8

Import of tcpdump v3.9.4

Virgin import of tcpdump v3.9.1 (alpha 096) from tcpdump.org

Import tcpdump 3.8.3, from http://www.tcpdump.org/releases/tcpdump-3.8.3.tar.gz