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Konstantin Belousov 85a0ddfd0b Add a resource limit for the total number of kqueues available to the 
user.  Kqueue now saves the ucred of the allocating thread, to
correctly decrement the counter on close.

Under some specific and not real-world use scenario for kqueue, it is
possible for the kqueues to consume memory proportional to the square
of the number of the filedescriptors available to the process.  Limit
allows administrator to prevent the abuse.

This is kernel-mode side of the change, with the user-mode enabling
commit following.

Reported and tested by:	pho
Discussed with:	jmg
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2013-10-21 16:46:12 +00:00
..
alias
apply Constify arguments. While I'm there, also add a static for usage(). 2013-01-04 23:44:22 +00:00
ar Work around build breakages with GCC 4.2. 2013-05-23 05:42:35 +00:00
asa
at - Do not bail out if stat(2) fails with ENOENT in the spool directory. This 2013-04-12 14:32:16 +00:00
atf Remove most of the ATF tools and the _atf user. 2013-10-12 06:06:53 +00:00
atm
awk
banner Add missing static keywords to banner(1) 2011-11-06 08:13:51 +00:00
basename
bc Work around build breakages with GCC 4.2. 2013-05-23 05:42:35 +00:00
biff Fix EXIT STATUS. biff reports its status when it was invoked. 2013-04-28 09:29:44 +00:00
bluetooth
bmake Stick to traditional DEFAULT_SYS_PATH (/usr/share/mk) 2013-09-10 23:31:38 +00:00
brandelf fix up my copyright and remove third clause.. 2013-08-26 18:51:48 +00:00
bsdiff Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
bzip2
bzip2recover Add the Clang specific -Wmissing-variable-declarations to WARNS=6. 2013-04-19 19:45:00 +00:00
c89 Make c89(1) invoke /usr/bin/cc with argv[0] also set to /usr/bin/cc, 2013-03-07 21:34:16 +00:00
c99 Make c99(1) invoke /usr/bin/cc with argv[0] set to "/usr/bin/cc" instead 2013-03-07 21:37:23 +00:00
calendar mdoc: remove EOL whitespace. 2013-10-04 16:44:24 +00:00
cap_mkdb Add missing static keywords to cap_mkdb(1) 2011-11-06 08:14:03 +00:00
catman Add missing static keywords to catman(1) 2011-11-06 08:14:09 +00:00
chat More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
checknr Mark global functions and/or variables in checknr(1) static where possible. 2011-11-06 18:49:03 +00:00
chkey Handle NULL return from crypt(3). Mostly from DragonFly 2012-02-22 06:27:20 +00:00
chpass Avoid possible null deref if ypclnt_new returns null 2012-11-15 15:06:18 +00:00
cksum More -Wmissing-variable-declarations fixes. 2012-10-20 10:33:15 +00:00
clang Add LLDB bmake infrastructure 2013-09-20 01:52:02 +00:00
cmp Add missing static keywords to cmp(1) 2011-11-06 08:14:16 +00:00
col Add missing static keywords to col(1) 2011-11-06 08:14:22 +00:00
colcrt Add missing static keywords to colcrt(1) 2011-11-06 08:14:28 +00:00
colldef
colrm
column Add missing static keywords to column(1) 2011-11-06 08:14:34 +00:00
comm Remove trailing whitespace per mdoc lint warning 2012-03-29 05:02:12 +00:00
compile_et - Update FreeBSD Heimdal distribution to version 1.5.1. This also brings 2012-03-22 08:48:42 +00:00
compress Replace index() and rindex() calls with strchr() and strrchr(). 2012-01-03 18:51:58 +00:00
cpio MFV r248590,248594: 2013-03-22 13:36:03 +00:00
cpuset Add missing static keywords to cpuset(1) 2011-11-06 08:14:40 +00:00
csplit Add missing static keywords to csplit(1) 2011-11-06 08:14:45 +00:00
csup Clean up -Wheader-guard warnings. 2013-06-17 20:11:04 +00:00
ctags
ctlstat Fix bugs in the elapsed time calculation in ctlstat_standard() 2013-04-11 21:18:04 +00:00
cut The is_delim function works on wchar_t characters not ints, update the 2012-11-24 04:15:25 +00:00
dc Properly handle '-h' argument. 2013-02-28 01:22:14 +00:00
dirname
drill Build and install drill(1). 2013-09-22 20:30:55 +00:00
dtc Remove EOL whitespace. 2013-08-22 16:01:20 +00:00
du New sentence, new line. 2012-11-04 09:27:01 +00:00
ee Fix spelling. 2013-03-11 13:08:32 +00:00
elf2aout
elfdump More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
enigma Handle NULL return from crypt(3). Mostly from DragonFly 2012-02-22 06:27:20 +00:00
env
expand Mark global functions and/or variables in expand(1) static where possible. 2011-11-06 18:49:30 +00:00
false
fetch Include an Accept header in requests. 2013-07-30 13:07:55 +00:00
file Update file(1) to version 5.11. 2012-04-19 03:20:13 +00:00
file2c
find find: Allow -delete to delete files given as arguments. 2013-08-02 14:14:23 +00:00
finger More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
fmt
fold Add missing static keywords to fold(1) 2011-11-06 08:15:23 +00:00
from
fstat Similar to 233760 and 236717, export some more useful info about the 2013-05-03 21:11:57 +00:00
fsync
ftp
gcore Add some missing DPADD. 2013-05-11 13:46:05 +00:00
gencat More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
getconf
getent Add support for netgroup, based on patch in the PR but made consistent 2013-05-23 20:52:30 +00:00
getopt
gprof rework old-style functions prototypes 2013-02-14 08:16:03 +00:00
grep grep -i does not work for simple patterns and single byte locales, like 2013-07-30 18:16:43 +00:00
gzip More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
head Remove EOL whitespace accidentally introduced in r248393. 2013-03-17 06:57:25 +00:00
hesinfo
hexdump Fix typo ('1' != 'l') 2013-03-04 02:21:06 +00:00
host Remove BIND. 2013-09-30 17:23:45 +00:00
iconv As a followup to r252547, propate const down the call stack. 2013-07-03 18:27:45 +00:00
id Correct the change made in r227166. 2011-11-06 09:09:45 +00:00
indent Add the Clang specific -Wmissing-variable-declarations to WARNS=6. 2013-04-19 19:45:00 +00:00
ipcrm General mdoc(7) and typo fixes. 2012-05-10 02:07:00 +00:00
ipcs Spelling fixes for usr.bin/ 2011-12-30 11:02:40 +00:00
iscsictl Make iscsictl(8) automatically try to load the iscsi module. While here, 2013-09-18 08:37:14 +00:00
join Cast *tabchar, a wchar_t, to a wint_t as it is the type the %lc printf 2013-02-04 10:05:55 +00:00
jot Remove superfluous paragraph macro. 2012-03-25 09:19:25 +00:00
kdump When displaying a struct stat, if the -r option was not specified, 2013-10-07 11:23:01 +00:00
keylogin WARNS=6 compliance 2013-02-19 13:32:26 +00:00
keylogout
killall killall: add -q flag to suppress error message when no processes are matched 2013-06-30 20:27:31 +00:00
ktrace Don't trace or dump page fault records in the default set of tracepoints 2012-05-31 14:46:02 +00:00
ktrdump - Implement run-time expansion of the KTR buffer via sysctl. 2012-11-15 00:51:57 +00:00
lam Mark global functions and/or variables in lam(1) static where possible. 2011-11-06 18:49:41 +00:00
last Bump date missed in r202756 2012-09-14 17:50:42 +00:00
lastcomm Allow to specify strftime(3) format for process start end exit times. 2012-05-17 11:10:13 +00:00
ldd Pass variables prefixed with both LD_ and LD_32_ to the run-time linker. 2013-08-07 00:28:17 +00:00
leave Build last(1) and leave(1) with WARNS=6. 2011-10-14 07:26:20 +00:00
less Note that the manual page of less(1) says: 2012-12-03 21:49:37 +00:00
lessecho
lesskey
lex Connect flex 2.5.37 to the build and bump __FreeBSD_version. 2013-05-21 19:32:35 +00:00
limits Add a resource limit for the total number of kqueues available to the 2013-10-21 16:46:12 +00:00
locale Sort options. 2012-11-17 23:52:38 +00:00
locate Give users a hint when their locate database is too small. 2012-12-10 02:26:01 +00:00
lock Check the return error of set[e][ug]id. While this can never fail in the 2012-10-22 03:07:05 +00:00
lockf Add option to lockf to avoid creating a file if it does not exist. 2013-05-10 17:30:29 +00:00
logger Add missing const keywords. 2012-10-19 14:29:03 +00:00
login None of these programs actually use auth.conf. 2012-06-11 16:18:39 +00:00
logins Reencode files from latin1 to UTF-8. 2011-12-30 10:59:15 +00:00
logname
look Add missing static keywords to look(1) 2011-11-06 08:15:59 +00:00
lorder
lsvfs - Add file system type number (vfc_typenum) in the list. This is useful 2013-06-09 16:33:32 +00:00
lzmainfo Remove unneeded WARNS=3 lines. 2011-10-16 08:04:43 +00:00
m4 mdoc: convert .Fd to .In, which is much nicer. 2013-06-04 07:37:06 +00:00
mail Remove unnecessary cast to pid_t. 2013-07-04 03:24:58 +00:00
make Remove unnecessary cast to pid_t. 2013-07-04 03:24:58 +00:00
makewhatis Currently the code uses gzFile * for a zlib file descriptor, which 2012-06-20 23:53:36 +00:00
man Remove default support for 1aout section manpages. There haven't been 2013-01-16 23:20:24 +00:00
mandoc Merge mandoc from vendor into contrib and provide the necessary Makefile glue. 2012-10-19 22:21:01 +00:00
mesg
minigzip MFV: Update zlib to 1.2.7. 2012-06-21 21:47:08 +00:00
ministat Add option to suppress just the plot in ministat while still retaining 2012-11-15 15:06:12 +00:00
mkcsmapper Attempt to deal with a compile failure that shows up with gcc, which 2013-07-03 18:25:27 +00:00
mkcsmapper_static
mkdep
mkesdb Attempt to deal with a compile failure that shows up with gcc, which 2013-07-03 18:25:27 +00:00
mkesdb_static
mkfifo
mklocale Work around build breakages with GCC 4.2. 2013-05-23 05:42:35 +00:00
mkstr
mktemp Use the macro for standard error return values. 2012-11-18 16:34:06 +00:00
mkulzma mdoc: document title should be all caps. 2012-03-25 19:34:05 +00:00
mkuzip
msgs Check the return error of set[e][ug]id. While this can never fail in the 2012-10-22 03:07:05 +00:00
mt In usr.bin/mt/mt.c, the c_code member of struct commands should really 2011-12-17 02:23:30 +00:00
nc
ncal More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
netstat Rewrite netstat/if.c to use getifaddrs(3) and getifmaddrs(3) instead of 2013-10-15 09:55:07 +00:00
newgrp Print a warning if not setuid root. 2013-02-08 14:14:00 +00:00
newkey
nfsstat Modify nfsstat.c so that it prints out an error when a non-root 2013-06-09 21:54:19 +00:00
nice
nl Make nl(1) build with WARNS=6. 2011-10-14 07:28:39 +00:00
nohup
opieinfo
opiekey
opiepasswd
pagesize
pamtest Update to OpenPAM Micrampelis. 2012-05-26 17:10:16 +00:00
passwd Respect NO_FSCHG and don't set 'schg' flag on passwd/yppasswd is defined. 2012-11-27 16:23:12 +00:00
paste Mark global functions and/or variables in paste(1) static where possible. 2011-11-06 18:49:53 +00:00
patch Improve bsdpatch usability: 2013-09-26 18:00:45 +00:00
pathchk pathchk: Ensure bytes >= 128 are considered non-portable characters. 2013-10-20 20:10:31 +00:00
perror
pr Standardize EXIT STATUS instructions in man pages when possible. 2012-11-18 16:33:51 +00:00
printenv
printf POSIX requires that non-existent or null arguments be treated as if a 2012-12-18 21:02:38 +00:00
procstat Add a resource limit for the total number of kqueues available to the 2013-10-21 16:46:12 +00:00
protect Correct stale comments. 2013-09-20 16:05:09 +00:00
quota Add missing static keywords to quota(1) 2011-11-06 08:16:29 +00:00
rctl Minor spelling and grammar fixes. 2013-04-11 19:05:24 +00:00
renice Move example to EXAMPLES. 2013-03-17 06:36:04 +00:00
rev
revoke
rlogin More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
rpcgen More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
rpcinfo Use INADDR_NONE instead of -1 to check inet_addr() result. 2013-10-15 07:37:30 +00:00
rs Add missing static keywords to rs(1) 2011-11-06 08:16:35 +00:00
rsh None of these programs actually use auth.conf. 2012-06-11 16:18:39 +00:00
rup
ruptime Add missing static keywords to ruptime(1) 2011-11-06 08:16:41 +00:00
rusers Add missing static keywords to rusers(1) 2011-11-06 08:16:47 +00:00
rwall Add missing static keywords to rwall(1) 2011-11-06 08:16:53 +00:00
rwho Change the cap_rights_t type from uint64_t to a structure that we can extend 2013-09-05 00:09:56 +00:00
script MFC'ing to 9.2. 2013-07-30 19:21:36 +00:00
sed sed: use getline() instead of fgetln(). 2013-06-26 04:14:19 +00:00
seq Standardize EXIT STATUS instructions in man pages when possible. 2012-11-18 16:33:51 +00:00
setchannel Remove superfluous paragraph macro. 2012-03-25 09:19:25 +00:00
shar
showmount
smbutil
sockstat Update the usage with the new jail option. 2012-06-27 23:26:32 +00:00
sort Fix header guards. 2013-06-17 20:15:39 +00:00
split Avoid signed overflow in error handling code. 2013-05-21 19:56:03 +00:00
ssh-copy-id Add examples to the ssh-copy-id script. 2012-11-13 13:06:57 +00:00
stat More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
stdbuf Remove stray tabs. 2013-01-14 11:06:50 +00:00
su Make check for unknown login class actually work. Previously, using the "-c" option 2013-08-12 21:01:01 +00:00
svn Disable use of compiler atomic builtins. For APR, this is limited to 2013-10-04 18:27:02 +00:00
systat Use INADDR_NONE instead of -1 to check inet_addr() result. 2013-10-15 07:37:30 +00:00
tabs
tail Print file names without stdio buffering to avoid mixing buffered and 2013-06-09 08:06:26 +00:00
talk Bump date missed in r202756 2012-09-14 17:50:42 +00:00
tar MFV r248590,248594: 2013-03-22 13:36:03 +00:00
tcopy Add missing static keywords to tcopy(1) 2011-11-06 08:17:29 +00:00
tee Reverting last change r231449 (fix bin/164947) due to concerns voiced 2012-02-11 16:34:03 +00:00
telnet
tftp More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
time time: Use close-on-exec instead of fclose() in the child process. 2012-12-08 17:41:39 +00:00
tip A number of places in the source tree still reference cuad.* after 2012-12-08 22:16:36 +00:00
top Bump the CPU/WCPU column width by one so that it fits values from 100% up 2013-06-11 19:05:29 +00:00
touch Constify where appropriate. 2013-04-23 13:03:17 +00:00
tput
tr When copying the complement of the string loop to WINT_MAX as we are dealing 2013-01-22 05:39:34 +00:00
true
truncate
truss Extend the support for exempting processes from being killed when swap is 2013-09-19 18:53:42 +00:00
tset More -Wmissing-variable-declarations fixes. 2012-10-19 14:49:42 +00:00
tsort Add missing static keywords to tsort(1) 2011-11-06 08:17:47 +00:00
tty
ul Fix a signed/unsigned comparison when wchar_t is unsigned by casting the 2013-01-06 03:08:27 +00:00
uname Add -K (__FreeBSD_version of kernel) and -U (__FreeBSD_version of userland). 2013-10-15 20:57:40 +00:00
unexpand Add missing static keywords to unexpand(1) 2011-11-06 08:18:05 +00:00
unifdef Update to upstream version 2.7 2013-03-28 20:33:07 +00:00
uniq Change the cap_rights_t type from uint64_t to a structure that we can extend 2013-09-05 00:09:56 +00:00
units mdoc: terminate quoted strings. 2012-03-26 15:18:14 +00:00
unvis Replace our (un)vis(1) commands with implementations from NetBSD to 2013-03-15 00:05:50 +00:00
unzip Replace deprecated (or remove obsolete) libarchive 2.8 functions 2013-03-22 10:17:42 +00:00
usbhidaction Add missing static keywords to usbhidaction(1) 2011-11-06 08:18:23 +00:00
usbhidctl mdoc sweep. 2013-05-12 22:22:12 +00:00
users Bump date missed in r202756 2012-09-14 17:50:42 +00:00
uudecode
uuencode Prefer an example users born after myself might use. 2012-10-26 15:21:23 +00:00
vacation Since clang 3.2 now has an option to suppress warnings about implicitly 2013-02-16 20:17:31 +00:00
vgrind mdoc: terminate quoted strings. 2012-03-26 15:18:14 +00:00
vi Give up on using iconv to convert to UTF-8 at build time. I don't see any 2013-08-12 09:56:52 +00:00
vis Replace our (un)vis(1) commands with implementations from NetBSD to 2013-03-15 00:05:50 +00:00
vmstat - Show page faults requiring I/O when -s invoked. 2013-01-28 12:58:37 +00:00
w Revert r253748,253749 2013-07-28 18:44:17 +00:00
wall Check the return error of set[e][ug]id. While this can never fail in the 2012-10-22 03:07:05 +00:00
wc Add missing static keywords to wc(1) 2011-11-06 08:19:00 +00:00
what
whereis Reencode files from latin1 to UTF-8. 2011-12-30 10:59:15 +00:00
which Mark global functions and/or variables in which(1) static where possible. 2011-11-06 18:50:26 +00:00
who Remove contractions. 2012-10-07 20:01:41 +00:00
whois General mdoc(7) and typo fixes. 2012-05-10 02:07:00 +00:00
write Fix write(1) to support wide characters. 2012-02-13 14:40:15 +00:00
xargs Style(9) changes fo xargs.c 2013-05-10 03:49:05 +00:00
xinstall New install flags were merged to 9-STABLE and will appear in FreeBSD-9.2. 2013-06-05 17:02:21 +00:00
xlint Improve compatibility with recent flex from flex.sourceforge.net. 2013-05-03 23:51:32 +00:00
xstr Mark global functions and/or variables in xstr(1) static where possible. 2011-11-06 18:50:39 +00:00
xz
xzdec Remove unneeded WARNS=3 lines. 2011-10-16 08:04:43 +00:00
yacc Import byacc from invisible island, it brings us lots of compatibilities with 2012-05-21 13:31:26 +00:00
yes yes(1) actually comes from V7. 2012-09-17 23:04:15 +00:00
ypcat
ypmatch
ypwhich
Makefile Disable use of compiler atomic builtins. For APR, this is limited to 2013-10-04 18:27:02 +00:00
Makefile.amd64 - Trim an unused and bogus Makefile for mount_smbfs. 2013-06-28 21:00:08 +00:00
Makefile.arm Add arm bits to truss. 2013-03-07 23:44:35 +00:00
Makefile.i386 - Trim an unused and bogus Makefile for mount_smbfs. 2013-06-28 21:00:08 +00:00
Makefile.ia64 - Trim an unused and bogus Makefile for mount_smbfs. 2013-06-28 21:00:08 +00:00
Makefile.inc
Makefile.powerpc - Trim an unused and bogus Makefile for mount_smbfs. 2013-06-28 21:00:08 +00:00
Makefile.sparc64 - Trim an unused and bogus Makefile for mount_smbfs. 2013-06-28 21:00:08 +00:00