MFC r355988-r355990

r355988:
MFV r353141 (by phillip):

Update libpcap from 1.9.0 to 1.9.1.

r355989:
MFV r353143 (phillip):

Update tcpdump from 4.9.2 to 4.9.3.

r355990:
MFV r355890:

Fix libpcap issue #893: check for invalid IPv4 addresses.

This fixes errors such as:

tcpdump -i lagg0 net 999.999.999.999

This was originally discovered on a Red Hat 7.7 server and verified
to also be a bug on FreeBSD.

Obtained from: https://github.com/the-tcpdump-group/libpcap/commit/ \
07070918d5e81a515315b395f334e52589fe0fb
Fixed by: https://github.com/guyharris

MFC r334277, r334376, r334378 and r334418:

MFV r333789: libpcap 1.9.0 (pre-release)

- Update local copy of dlt.h with new DLT types.

Sponsored by: Mellanox Technologies

MFC r313695, r313760, r314769, r314863, r314865, r316125

r313695:
MFV r313676: libpcap 1.8.1

r313760:
MFV r313759: license change for a few headers (4 clause BSD to 3 clause BSD).

X-MFC-with: r313695

r314769:
Remove compatibility with old libpcap.

Differential Revision: https://reviews.freebsd.org/D9606

r314863:
Stop installing pcap-int.h, which is the internal interface for libpcap.

Reference: https://github.com/the-tcpdump-group/libpcap/issues/560
PR: 217221

r314865:
Bump __FreeBSD_version for removal of pcap-int.h.

PR: 217221

r316125:
MFV r316124: Fix build when WITHOUT_INET6.

Reported by: Randy Westlund <rwestlun gmail com>

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFV r276759: libpcap 1.6.2.

MFC after: 1 month

MFV: libpcap 1.4.0.

MFC after: 4 weeks

Add tcp header flags ECE and CWR defined in RFC 3168.

PR: 140349
Submitted by: Alan Amesbury <amesbury@umn.edu> (earlier version)
Reviewed by: delphij
Approved by: sbruno (mentor)

Merge from vendor branch: update libpcap to 1.2.1.

MFC after: 2 weeks

Merge libpcap-1.1.1.

Merge libpcap 1.0.0.

Resolve merge conflicts

Approved by: re (kensmith)
Obtained from: tcpdump.org

resolve merge conflicts

MFC after: 1 month

resolve merge conflicts

Approved by: re (scottl)

resolve merge conflicts

Reviewed by: bms (earlier version)

Merge of libpcap 0.8.3 from tcpdump.org.

* Modify libpcap to work a bit better with our 802.11 code. This means
tcpdump -y ieee802_11 will work in the basic senses, including the
code compilation for filters (where you may specify "link[]" to refer
to parts of the 802.11 header, as well as treat it like a normal
Ethernet header). Previously, it was just too far off to do anything
useful for us.
* While I'm here, fix some compile problems that will result from lex
and yacc namespace polution when linking with -lpcap. The namespace
is now "pcapyy*" instead of "yy*", and it tests fine with world and
some external applications that may or may not use "yy*".

Merge libpcap 0.7.1

MFC after: 2 weeks

Merge libpcap 0.6.2

When pcap_compile() detects an error, it longjmp()'s out of the
scanner/parser. FreeBSD recently made 'flex' its default implementation
of 'lex'. One of the incompatibilities of 'flex' vs. 'lex' is that
if you longjmp() out of the scanner, you must call yyrestart()
before doing another scan (as documented in flex(1)). So add an
invocation to yyrestart() in lex_init(). This change should be
backwards compatible with the original 'lex'.

PR: bin/24116

Merge libpcap 0.5

Merge libpcap version 0.4

PR: bin/7877

Merge libpcap 0.3
Update FREEBSD-upgrade to mention bumping library version number.

Suggested-by: Chris Timmons <skynyrd@opus.cts.cwu.edu>

Add support for ISO CLNP/ES-IS/IS-IS.
These changes have been also sent back to LBL for inclusion in next release.

Submitted by: Tony Li <tli@jnx.com>

This commit was generated by cvs2svn to compensate for changes in r17683,
which included commits to RCS files with non-trunk default branches.

Virgin import of LBL libpcap version 0.2.1.
Obtained from: ftp://ftp.ee.lbl.gov/libpcap.tar.Z on 19-Aug-1996.