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Matthew N. Dodd 09139a4537 Implement support for RFC 3514 (The Security Flag in the IPv4 Header). 
(See: ftp://ftp.rfc-editor.org/in-notes/rfc3514.txt)

This fulfills the host requirements for userland support by
way of the setsockopt() IP_EVIL_INTENT message.

There are three sysctl tunables provided to govern system behavior.

	net.inet.ip.rfc3514:

		Enables support for rfc3514.  As this is an
		Informational RFC and support is not yet widespread
		this option is disabled by default.

	net.inet.ip.hear_no_evil

		 If set the host will discard all received evil packets.

	net.inet.ip.speak_no_evil

		If set the host will discard all transmitted evil packets.

The IP statistics counter 'ips_evil' (available via 'netstat') provides
information on the number of 'evil' packets recieved.

For reference, the '-E' option to 'ping' has been provided to demonstrate
and test the implementation.
2003-04-01 08:21:44 +00:00
..
alias Fix installworld. 2002-07-17 15:35:31 +00:00
apply WARNS=4 2002-07-14 18:23:22 +00:00
ar WARNS=4 2002-07-14 18:23:22 +00:00
asa
at Explain the format of the at.allow and at.deny files in detail. 2003-03-26 02:38:18 +00:00
awk For the bwk_20030314 version, we have to -DHAS_ISBLANK now. 2003-03-17 08:07:54 +00:00
banner
basename ANSIify function definitions. 2002-09-04 23:29:10 +00:00
biff Bump document date for the 'beep only' change. 2002-08-16 03:08:25 +00:00
bluetooth mdoc(7) police: markup fixes. 2002-12-12 13:26:32 +00:00
brandelf
bzip2
bzip2recover Complete the bzip2 suite. 2003-01-04 17:09:27 +00:00
c89
c99 mdoc(7) police: overhaul. 2002-12-11 17:26:53 +00:00
calendar Add birthdays of NetBSD and FreeBSD projects. For the former, take 2003-03-19 00:58:32 +00:00
cap_mkdb ANSIify function definitions to avoid a warning. 2002-07-28 14:41:26 +00:00
catman mdoc(7) police: sort xrefs in SEE ALSO. 2002-12-13 16:53:51 +00:00
chat Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/ 2002-12-30 21:18:15 +00:00
checknr ANSIify function definitions to avoid a warning. 2002-07-28 14:55:59 +00:00
chkey Use strchr() instead of index(). Use getopt(). Use err(). 2002-08-27 19:06:44 +00:00
chpass Style cleanup. 2002-12-30 09:46:58 +00:00
cksum - For variables holding offset values, use off_t rather than 2003-03-13 23:32:28 +00:00
cmp The cmp utility has the questionable feature of using mmap when 2003-02-26 06:44:46 +00:00
col ANSIify function definitions. 2002-09-04 23:29:10 +00:00
colcrt Fixed the abuses of .Ql visible on stderr in troff mode. 2002-12-23 16:04:51 +00:00
colldef mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
colrm ANSIify function definitions to avoid a warning. 2002-07-28 15:22:43 +00:00
column ANSify function definitions to avoid a warning. 2002-07-28 15:25:15 +00:00
comm ANSIify function definitions to avoid a warning. 2002-07-28 15:28:38 +00:00
compile_et
compress Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/ 2002-12-30 21:18:15 +00:00
csplit mdoc(7) police: simplify. 2002-08-14 11:38:30 +00:00
ctags mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
cut mdoc(7) police: markup polishing. 2002-11-26 10:51:47 +00:00
dig
dirname ANSIify function definitions to avoid a warning. 2002-07-28 15:50:38 +00:00
dnskeygen
dnsquery
doscmd Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
du -{h,k} are mutually exclisive. So only pay attention to the last of the 2003-03-30 21:25:16 +00:00
ee
elf2aout Back out the totally unapproved backout of my commits. 2003-03-29 03:03:42 +00:00
elfdump mdoc(7) police: Revision. 2003-03-03 11:51:30 +00:00
enigma ANSIify function definitions. 2002-09-04 23:29:10 +00:00
env ANSIify function definitions. 2002-09-04 23:29:10 +00:00
expand mdoc(7) police: markup polishing. 2002-11-26 10:57:57 +00:00
false
fetch Use floating point arithmetic to compute the ETA to avoid integer overflow 2003-03-11 21:33:43 +00:00
file Update for FILE v3.41. 2003-03-12 14:37:01 +00:00
file2c
find Correctly alphabetize options[] so we don't stop at -nouser when searching 2003-02-18 14:30:43 +00:00
finger mdoc(7) police: Deal with self-xrefs. 2002-12-24 13:41:48 +00:00
fmt
fold ANSIify function definitions. 2002-09-04 23:29:10 +00:00
from ANSIify function definitions. 2002-09-04 23:29:10 +00:00
fstat Bow to the whining masses and change a union back into void *. Retain 2003-01-13 00:33:17 +00:00
fsync
ftp
gcore Add #include <sys/queue.h> for sparc64's benefit. The MD includes there 2002-09-13 18:24:59 +00:00
gencat Check NULL pointer to avoid SIGSEGV 2002-12-24 07:40:10 +00:00
getconf Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
getopt english(4) police. 2002-12-27 12:15:40 +00:00
gprof Remove 2 more unused doc Makefiles. 2003-02-04 18:26:08 +00:00
head Remove duplicate __FBSDID() - spotted by trying to build with a non-GNU 2002-07-23 14:39:20 +00:00
hesinfo ANSIify function definitions. 2002-09-04 23:29:10 +00:00
hexdump Capitalize ASCII code names. 2002-12-05 08:50:00 +00:00
host
id ANSIify function definitions. 2002-09-04 23:29:10 +00:00
indent Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup, 2003-01-01 18:49:04 +00:00
ipcrm Wrap long line. Use .Ar instead of .Nm where appropriate. 2003-02-05 14:15:02 +00:00
ipcs The descriptions of the -C and -M options were around the wrong way; 2003-03-24 10:45:12 +00:00
join mdoc(7) police: nit. 2002-11-26 11:25:04 +00:00
jot
kdump Add a default case that just outputs a new line for the case of an 2003-03-13 18:58:39 +00:00
keylogin
keylogout
killall Header was included twice. Hardcode program name in usage string. 2003-02-05 14:20:27 +00:00
ktrace Do not start err(3) strings with uppercase nor dot terminate them. 2003-02-05 14:25:43 +00:00
ktrdump Use strlcpy() instead of strcpy() to not overflow static buffers. 2002-10-06 23:52:06 +00:00
lam
last Fix core dumps when invoking with something like ``last -w1''. 2002-10-30 18:19:59 +00:00
lastcomm Don't try to fseek before the beginning of the file; POSIX requires that 2003-01-27 18:16:32 +00:00
ldd Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/ 2002-12-30 21:18:15 +00:00
leave Fixed the abuses of .Ql visible on stderr in troff mode. 2002-12-23 16:04:51 +00:00
less Add an embellished lesspipe.sh as described in the man page. 2003-03-06 04:35:48 +00:00
lessecho
lesskey
lex Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup, 2003-01-01 18:49:04 +00:00
limits Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
locale Add locale(1). I have used it for while as useful debugging tool 2002-10-16 13:17:18 +00:00
locate Drop support for COPY, -c has been the default mode of install(1) 2002-07-29 09:40:17 +00:00
lock Document the fact that VTY locking is easily bypassable when DDB 2003-02-27 18:25:26 +00:00
lockf
logger ANSIify function definitions. 2002-09-04 23:29:10 +00:00
login Back out previous commit, I wasn't thinking clearly. 2003-02-15 23:20:04 +00:00
logname ANSIify function definitions. 2002-09-04 23:29:10 +00:00
look ANSIify function definitions. 2002-09-04 23:29:10 +00:00
lorder Make it work with POSIX sort (POS arg) 2002-09-24 18:16:36 +00:00
lsvfs Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
m4 english(4) police. 2002-12-27 12:15:40 +00:00
mail Remove 2 more unused doc Makefiles. 2003-02-04 18:26:08 +00:00
make Remove another unused Makefile. 2003-02-03 04:15:53 +00:00
makewhatis Install /usr/libexec/makewhatis.local and /usr/libexec/catman.local. 2002-11-18 10:11:22 +00:00
mesg ANSIify function definitions. 2002-09-04 23:29:10 +00:00
minigzip mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
mkdep english(4) police. 2002-12-27 12:15:40 +00:00
mkfifo ANSIify function definitions. 2002-09-04 23:29:10 +00:00
mklocale english(4) police. 2002-12-27 12:15:40 +00:00
mkstr Remove claim that pi and ex use mkstr; pi is long gone, and nex doesn't 2002-11-01 12:22:41 +00:00
mktemp Use proper article. 2002-07-16 05:38:26 +00:00
msgs Fix singular/plural confusion in a printf. 2003-02-06 22:39:44 +00:00
mt Add information about the SDLT density codes. 2002-10-15 12:53:29 +00:00
ncal Teach ncal(1) about month names specified on the command line. 2002-10-02 12:31:10 +00:00
ncplist
ncplogin ANSIify function definitions. 2002-09-04 23:29:10 +00:00
netstat Implement support for RFC 3514 (The Security Flag in the IPv4 Header). 2003-04-01 08:21:44 +00:00
newgrp
newkey The .Nm utility 2002-07-14 15:12:00 +00:00
nfsstat
nice english(4) police. 2002-12-27 12:15:40 +00:00
nl Remove local prototypes for main(). 2002-08-19 03:07:56 +00:00
nm Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup, 2003-01-01 18:49:04 +00:00
nohup WARNS=4 2002-07-14 18:23:22 +00:00
objformat mdoc(7) police: markup and spelling. 2002-11-26 17:34:25 +00:00
opieinfo
opiekey
opiepasswd
pagesize
passwd mdoc(7) police: Deal with self-xrefs. 2002-12-24 13:41:48 +00:00
paste Fixed the abuses of .Ql visible on stderr in troff mode. 2002-12-23 16:04:51 +00:00
pathchk Unbreak support for systems that have no limit on pathname length. 2002-12-15 00:40:47 +00:00
pr Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/ 2002-12-30 21:18:15 +00:00
printenv mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
printf ANSIify function definitions. 2002-09-04 23:29:10 +00:00
quota Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
ranlib
renice The usage string: renice [priority | [-n incr]] ... assumed that the part 2003-02-26 20:27:24 +00:00
rev ANSIify function definitions. 2002-09-04 23:29:10 +00:00
rlogin Dekerberise. The corresponding userland stuff has been dekerberised 2002-10-16 16:09:05 +00:00
rpcgen Implement nonblocking tpc-connections. rpcgen -m does still 2003-01-16 07:27:30 +00:00
rpcinfo Change the name for the local unix-socket based protocol 2002-12-16 22:24:26 +00:00
rs
rsh Dekerberise. The corresponding userland stuff has been dekerberised 2002-10-16 16:10:46 +00:00
rup
ruptime Forgot to update the date field; from David Magda <dmagda@magda.ca>. 2003-03-01 23:43:53 +00:00
rusers
rwall ANSIify function definitions. 2002-09-04 23:29:10 +00:00
rwho
sasc
script ANSIify function definitions. 2002-09-04 23:29:10 +00:00
sed Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup, 2003-01-01 18:49:04 +00:00
shar
showmount Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
size
smbutil
sockstat Bow to the whining masses and change a union back into void *. Retain 2003-01-13 00:33:17 +00:00
soelim Fixed the abuses of .Ql visible on stderr in troff mode. 2002-12-23 16:04:51 +00:00
split Support larger files (at least 64-bit offsets) by using off_t instead of 2002-07-15 05:31:55 +00:00
stat Adjust the size passed to readlink so that the null termination 2002-10-25 07:26:36 +00:00
strings
strip Drop support for COPY, -c has been the default mode of install(1) 2002-07-29 09:40:17 +00:00
su Put child process in a different process group, ensure that the broadcast 2003-03-27 01:32:51 +00:00
symorder Introduce option enumeration the standard way. 2002-10-17 12:58:14 +00:00
systat Run a revision of the devstat interface: 2003-03-15 21:59:06 +00:00
tabs mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
tail When doing tail -F, return if the freopen() of the file fails instead of 2002-12-15 11:26:57 +00:00
talk Add a reference to talkd(8) as a hint that talk(1) depends on a 2003-01-23 22:40:18 +00:00
tconv
tcopy english(4) police. 2002-12-27 12:15:40 +00:00
tee ANSIify function definitions. 2002-09-04 23:29:10 +00:00
telnet Diff-reduction WRT crypto telnet; replace "#if 0" code removed by an 2002-12-29 07:36:43 +00:00
tftp fix reverse logic in "connect" command that cause port specifications to be ignored. 2003-03-25 02:33:35 +00:00
time english(4) police. 2002-12-27 12:15:40 +00:00
tip mdoc(7) police: Deal with self-xrefs. 2002-12-24 13:41:48 +00:00
top Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
touch ANSIify function definitions. 2002-09-04 23:29:10 +00:00
tput ANSIify function definitions. 2002-09-04 23:29:10 +00:00
tr Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/ 2002-12-30 21:18:15 +00:00
true
truncate
truss Removed extra parentheses. 2003-02-20 15:09:52 +00:00
tset Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup, 2003-01-01 18:49:04 +00:00
tsort ANSIify function definitions. 2002-09-04 23:29:10 +00:00
tty
uac
ul ANSIify function definitions. 2002-09-04 23:29:10 +00:00
uname Use some macro evil to create the functions for using sysctl(3) to get each 2002-09-23 06:47:39 +00:00
unexpand Fix off-by-one error processing the line after an empty line when the 2002-10-04 16:45:25 +00:00
unifdef mdoc(7) police: Scheduled sweep. 2003-02-24 22:53:26 +00:00
uniq mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
units Add enough consts to keep everyone happy. 2002-07-28 16:23:28 +00:00
unvis ANSIify function definitions. 2002-09-04 23:29:10 +00:00
usbhidctl
users ANSIify function definitions. 2002-09-04 23:29:10 +00:00
uudecode The POSIXly-correct /dev/stdout handling added in rev 1.44 makes 2003-03-18 14:19:26 +00:00
uuencode Fix English usage: "for security purpose" -> "for security reasons". 2003-03-18 14:24:47 +00:00
uuidgen Add an -o filename option to have the output written to a file. 2003-03-15 02:27:10 +00:00
vacation
vgrind Make it work with POSIX sort (POS arg). 2002-09-24 19:05:40 +00:00
vi Unifdef has got some crack-smoking exit values: 2003-01-04 20:24:27 +00:00
vis ANSIify function definitions. 2002-09-04 23:29:10 +00:00
vmstat Run a revision of the devstat interface: 2003-03-15 21:59:06 +00:00
w Fix warning when calling w(1) when logged in via xdm/kdm. This is 2002-08-23 04:31:58 +00:00
wall Remove "sleeper" nonsense. 2003-02-21 08:46:44 +00:00
wc mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
what mdoc(7) police: markup polishing. 2002-11-26 17:33:37 +00:00
whereis Adjust max WARNs for sparc64. 2002-12-30 09:48:40 +00:00
which
who Remove unimplemented System V options from the getopt() option string. 2002-12-21 00:38:14 +00:00
whois Add support for identifying NORID (norwegian top level registry) handles. 2003-03-25 17:00:03 +00:00
window The ... utility 2003-03-24 15:53:11 +00:00
write ANSIify function definitions. 2002-09-04 23:29:10 +00:00
xargs xargs(1) is WARNS=6 clean. 2003-03-28 16:24:11 +00:00
xinstall Uniformly refer to a file system as "file system". 2002-12-12 17:26:04 +00:00
xlint Fix typos; add FreeBSD Id where missing. 2003-01-01 18:13:45 +00:00
xstr Another buffer overflow similar to the recent one in mkstr(1). 2002-11-01 12:48:28 +00:00
yacc Add __unused to the declaration of yyrcsid in a more portable way. 2003-02-12 18:03:55 +00:00
yes #include <err.h> to make yes warns clean again. 2002-11-09 21:00:39 +00:00
ypcat
ypmatch
ypwhich
Makefile Some things don't build for PowerPC yet. 2003-02-21 02:30:51 +00:00
Makefile.inc