Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

Add example to ng_bpf(4) showing how ng_bpf(4) can be used to prevent spoofing.

Differential Revision: https://reviews.freebsd.org/D26488
MFC after: 1 week
Reviewed by: pi, bcr (manpages)
Submitted

Add example to ng_bpf(4) showing how ng_bpf(4) can be used to prevent spoofing.

Differential Revision: https://reviews.freebsd.org/D26488
MFC after: 1 week
Reviewed by: pi, bcr (manpages)
Submitted by: lutz_donnerhacke.de (Lutz Donnerhacke)
Sponsored by: Mellanox Technologies // NVIDIA Networking

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When copying and pasting the code in the EXAMPLE
section, it would result in the following error:

"ngctl: send msg: Invalid argument"

The reason for this is the missing whitespace to
separate the a

When copying and pasting the code in the EXAMPLE
section, it would result in the following error:

"ngctl: send msg: Invalid argument"

The reason for this is the missing whitespace to
separate the arguments. When adding the whitespace,
the example works as intended.

Submitted by: lutz_donnerhacke.de
Approved by: bcr
Differential Revision: https://reviews.freebsd.org/D23773

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ng_bpf.4: fix EXAMPLES: do not activate promiscuous mode

PR: 102719
MFC after: 3 days

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)

Merge head from 7/28

Sync to HEAD@r269943.

use .Mt to mark up email addresses consistently (final part)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

Merge fresh head.

Sync with HEAD.

MFC

IFC @ r243164

Updates for netgraph node manual pages.

Discussed with: glebius
Submitted by: Mamontov Roman <mr.xanto@gmail.com>

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

Update the projects tree to a newer FreeBSD current.

Sometimes, depending on the bpf filter rules used in $PATTERN,
the example script of the manpage feeds awk(1) with values larger
than UINT32_MAX. Then awk prints a negative value, and this
messes up

Sometimes, depending on the bpf filter rules used in $PATTERN,
the example script of the manpage feeds awk(1) with values larger
than UINT32_MAX. Then awk prints a negative value, and this
messes up $BPFPROG. Trying to load the resulting bpf byte codes
with ngctl then fails.

For example, the output for PATTERN="udp and dst net 255.255.0.0/16"
should be (all in one line):

bpf_prog_len=10
bpf_prog=[
{ code=40 jt=0 jf=0 k=12 }
{ code=21 jt=7 jf=0 k=34525 }
{ code=21 jt=0 jf=6 k=2048 }
{ code=48 jt=0 jf=0 k=23 }
{ code=21 jt=0 jf=4 k=17 }
{ code=32 jt=0 jf=0 k=30 }
{ code=84 jt=0 jf=0 k=4294901760 }
{ code=21 jt=0 jf=1 k=4294901760 }
{ code=6 jt=0 jf=0 k=8192 }
{ code=6 jt=0 jf=0 k=0 }
]

The two k=4294901760 values are displayed as k=-2147483648 by awk.

Replace the awk script of the manpage example with a slower but
safer version, that doesn't really attempt to convert the byte
code printed by tcpdump from string to number and back.

PR: docs/123255
Submitted by: Eugenio Maffione, eugenio.maffione at telecomitalia.it
MFC after: 3 days

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- Sync with ng_bpf.h, rev. 1.7
- Remove extra brace.

Submitted by: Anton Yuzhaninov <citrin rambler-co.ru>

Verify that SYNOPSIS section compiles.

Sort sections.

Mechanically kill hard sentence breaks and double whitespaces.

Replace all uses of the old netgraph constants NG_*LEN by the new
constants NG_*SIZ that include the trailing NUL byte. This change
is mostly mechanical except for the replacement of a couple of snpr

Replace all uses of the old netgraph constants NG_*LEN by the new
constants NG_*SIZ that include the trailing NUL byte. This change
is mostly mechanical except for the replacement of a couple of snprintf()
and sprintf() calls with strlcpy.

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mdoc(7) police: Use the new .In macro for #include statements.

Removed whitespace at end-of-line; no content changes. I simply did
cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//'

BTW, what editors are the culprits? I'm using vim and it shows

Removed whitespace at end-of-line; no content changes. I simply did
cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//'

BTW, what editors are the culprits? I'm using vim and it shows
me whitespace at EOL in troff files with a thick blue block...

Reviewed by: Silence from cvs diff -b
MFC after: 7 days

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mdoc(7) police: removed HISTORY info from the .Os call.

mdoc(7) police: sort SEE ALSO xrefs (sort -b -f +2 -3 +1 -2).