Document this. Do not require channel number in server mode. If not
specified - bind to ''wildcard'' channel zero. Real channel number will
be obtained automatically and registered with local sdpd(8). While I'm
here fix serial port service registration.
Submitted by: luigi
Tested by: Helge Oldach <freebsd-bluetooth at oldach dot net>
MFC after: 3 days
This particular implementation is designed to be fully backwards compatible
and to be MFC-able to 7.x (and 6.x)
Currently the only protocol that can make use of the multiple tables is IPv4
Similar functionality exists in OpenBSD and Linux.
From my notes:
-----
One thing where FreeBSD has been falling behind, and which by chance I
have some time to work on is "policy based routing", which allows
different
packet streams to be routed by more than just the destination address.
Constraints:
------------
I want to make some form of this available in the 6.x tree
(and by extension 7.x) , but FreeBSD in general needs it so I might as
well do it in -current and back port the portions I need.
One of the ways that this can be done is to have the ability to
instantiate multiple kernel routing tables (which I will now
refer to as "Forwarding Information Bases" or "FIBs" for political
correctness reasons). Which FIB a particular packet uses to make
the next hop decision can be decided by a number of mechanisms.
The policies these mechanisms implement are the "Policies" referred
to in "Policy based routing".
One of the constraints I have if I try to back port this work to
6.x is that it must be implemented as a EXTENSION to the existing
ABIs in 6.x so that third party applications do not need to be
recompiled in timespan of the branch.
This first version will not have some of the bells and whistles that
will come with later versions. It will, for example, be limited to 16
tables in the first commit.
Implementation method, Compatible version. (part 1)
-------------------------------
For this reason I have implemented a "sufficient subset" of a
multiple routing table solution in Perforce, and back-ported it
to 6.x. (also in Perforce though not always caught up with what I
have done in -current/P4). The subset allows a number of FIBs
to be defined at compile time (8 is sufficient for my purposes in 6.x)
and implements the changes needed to allow IPV4 to use them. I have not
done the changes for ipv6 simply because I do not need it, and I do not
have enough knowledge of ipv6 (e.g. neighbor discovery) needed to do it.
Other protocol families are left untouched and should there be
users with proprietary protocol families, they should continue to work
and be oblivious to the existence of the extra FIBs.
To understand how this is done, one must know that the current FIB
code starts everything off with a single dimensional array of
pointers to FIB head structures (One per protocol family), each of
which in turn points to the trie of routes available to that family.
The basic change in the ABI compatible version of the change is to
extent that array to be a 2 dimensional array, so that
instead of protocol family X looking at rt_tables[X] for the
table it needs, it looks at rt_tables[Y][X] when for all
protocol families except ipv4 Y is always 0.
Code that is unaware of the change always just sees the first row
of the table, which of course looks just like the one dimensional
array that existed before.
The entry points rtrequest(), rtalloc(), rtalloc1(), rtalloc_ign()
are all maintained, but refer only to the first row of the array,
so that existing callers in proprietary protocols can continue to
do the "right thing".
Some new entry points are added, for the exclusive use of ipv4 code
called in_rtrequest(), in_rtalloc(), in_rtalloc1() and in_rtalloc_ign(),
which have an extra argument which refers the code to the correct row.
In addition, there are some new entry points (currently called
rtalloc_fib() and friends) that check the Address family being
looked up and call either rtalloc() (and friends) if the protocol
is not IPv4 forcing the action to row 0 or to the appropriate row
if it IS IPv4 (and that info is available). These are for calling
from code that is not specific to any particular protocol. The way
these are implemented would change in the non ABI preserving code
to be added later.
One feature of the first version of the code is that for ipv4,
the interface routes show up automatically on all the FIBs, so
that no matter what FIB you select you always have the basic
direct attached hosts available to you. (rtinit() does this
automatically).
You CAN delete an interface route from one FIB should you want
to but by default it's there. ARP information is also available
in each FIB. It's assumed that the same machine would have the
same MAC address, regardless of which FIB you are using to get
to it.
This brings us as to how the correct FIB is selected for an outgoing
IPV4 packet.
Firstly, all packets have a FIB associated with them. if nothing
has been done to change it, it will be FIB 0. The FIB is changed
in the following ways.
Packets fall into one of a number of classes.
1/ locally generated packets, coming from a socket/PCB.
Such packets select a FIB from a number associated with the
socket/PCB. This in turn is inherited from the process,
but can be changed by a socket option. The process in turn
inherits it on fork. I have written a utility call setfib
that acts a bit like nice..
setfib -3 ping target.example.com # will use fib 3 for ping.
It is an obvious extension to make it a property of a jail
but I have not done so. It can be achieved by combining the setfib and
jail commands.
2/ packets received on an interface for forwarding.
By default these packets would use table 0,
(or possibly a number settable in a sysctl(not yet)).
but prior to routing the firewall can inspect them (see below).
(possibly in the future you may be able to associate a FIB
with packets received on an interface.. An ifconfig arg, but not yet.)
3/ packets inspected by a packet classifier, which can arbitrarily
associate a fib with it on a packet by packet basis.
A fib assigned to a packet by a packet classifier
(such as ipfw) would over-ride a fib associated by
a more default source. (such as cases 1 or 2).
4/ a tcp listen socket associated with a fib will generate
accept sockets that are associated with that same fib.
5/ Packets generated in response to some other packet (e.g. reset
or icmp packets). These should use the FIB associated with the
packet being reponded to.
6/ Packets generated during encapsulation.
gif, tun and other tunnel interfaces will encapsulate using the FIB
that was in effect withthe proces that set up the tunnel.
thus setfib 1 ifconfig gif0 [tunnel instructions]
will set the fib for the tunnel to use to be fib 1.
Routing messages would be associated with their
process, and thus select one FIB or another.
messages from the kernel would be associated with the fib they
refer to and would only be received by a routing socket associated
with that fib. (not yet implemented)
In addition Netstat has been edited to be able to cope with the
fact that the array is now 2 dimensional. (It looks in system
memory using libkvm (!)). Old versions of netstat see only the first FIB.
In addition two sysctls are added to give:
a) the number of FIBs compiled in (active)
b) the default FIB of the calling process.
Early testing experience:
-------------------------
Basically our (IronPort's) appliance does this functionality already
using ipfw fwd but that method has some drawbacks.
For example,
It can't fully simulate a routing table because it can't influence the
socket's choice of local address when a connect() is done.
Testing during the generating of these changes has been
remarkably smooth so far. Multiple tables have co-existed
with no notable side effects, and packets have been routes
accordingly.
ipfw has grown 2 new keywords:
setfib N ip from anay to any
count ip from any to any fib N
In pf there seems to be a requirement to be able to give symbolic names to the
fibs but I do not have that capacity. I am not sure if it is required.
SCTP has interestingly enough built in support for this, called VRFs
in Cisco parlance. it will be interesting to see how that handles it
when it suddenly actually does something.
Where to next:
--------------------
After committing the ABI compatible version and MFCing it, I'd
like to proceed in a forward direction in -current. this will
result in some roto-tilling in the routing code.
Firstly: the current code's idea of having a separate tree per
protocol family, all of the same format, and pointed to by the
1 dimensional array is a bit silly. Especially when one considers that
there is code that makes assumptions about every protocol having the
same internal structures there. Some protocols don't WANT that
sort of structure. (for example the whole idea of a netmask is foreign
to appletalk). This needs to be made opaque to the external code.
My suggested first change is to add routing method pointers to the
'domain' structure, along with information pointing the data.
instead of having an array of pointers to uniform structures,
there would be an array pointing to the 'domain' structures
for each protocol address domain (protocol family),
and the methods this reached would be called. The methods would have
an argument that gives FIB number, but the protocol would be free
to ignore it.
When the ABI can be changed it raises the possibilty of the
addition of a fib entry into the "struct route". Currently,
the structure contains the sockaddr of the desination, and the resulting
fib entry. To make this work fully, one could add a fib number
so that given an address and a fib, one can find the third element, the
fib entry.
Interaction with the ARP layer/ LL layer would need to be
revisited as well. Qing Li has been working on this already.
This work was sponsored by Ironport Systems/Cisco
PR:
Reviewed by: several including rwatson, bz and mlair (parts each)
Approved by:
Obtained from: Ironport systems/Cisco
MFC after:
Security:
the vnode pointer is not NULL. This avoids spurious warnings in fstat -v
output for kernel processes.
MFC after: 1 week
PR: amd64/123456
Submitted by: KOIE Hidetaka | hide koie.org
Previously they would have left TIOCEXCL enabled, requiring
either a reboot or use of tip/cu as the root user.
Observed when running QEMU with character devices redirected to pty instances.
MFC after: 2 weeks
* --format can be used with -r or -u
* -o is a synonym for --format=ustar when used with -c, -r, or -u
Also, fix the erroneous sanity check that suppressed --format with -r or -u.
The bug was unnoticed on non-i386 because mp_maxid is
initialized differently, kern.cp_times doesn't print
zeroes for non-existing CPUs, so no "writing outside of
array bounds" happens.
MFC after: 3 days
src/cddl and src/sys/cddl directories per the core@ decision following
the license review.
This change modifies the affected Makefiles to reference the sources
in their new location.
The current FreeBSD syscall generation script uses all 20 and I need
another open file.
It's a shame that something named as the 'one-true-awk' is so limited
by an old denition like FOPEN_MAX when it could just make the file
handling dynamic.
This is done to avoid touching contrib sources on a vendor branch.
spaces in values. Without this change, the following valid
call broke due to parsing of .MAKEFLAGS in bsd.symver.mk:
cd /usr/src/lib/libc && make -n DEBUG_FLAGS="-DFOO -DBAR"
Spotted by: Igor Sysoev
Submitted by: Maxim Dounin, ru
MFC after: 1 week
by default rather than the setmask. This is consistent with the linux
tool and more consistent with the notion that the default level is
the process level. The cpuset mask can still be modified by specifying
the -c option. You can not set the per-thread and cpuset mask in
a single command.
- Update the man page to reflect this change.
Contributed by: gallatin
page stated, thus BSD ar(1) option -q, which was implemented based on
the GNU ar manual page, turns out to be incompatible with GNU ar -q.
This change will make BSD ar(1) -q a *REAL* GNU ar -q:
1. It will update symbol table. (same as unfixed version)
2. It will NOT compare new members spcified in the command line args
with existing members, instead, append them directly.
Reported by: Johannes 5 Joemann <joemann@beefree.free.de>
Reported by: Timothy Bourke <timbob@bigpond.com>
Tested by: Johannes 5 Joemann <joemann@beefree.free.de>
Reviewed by: jkoshy
Approved by: jkoshy (mentor)
target file after the timestamp has been set; otherwise setting the
timestamp will fail if the flags don't permit it (i.e., uchg).
MFC after: 1 week
PR: 120208
Submitted by: Ighighi <ighighi at gmail.com>
- Use real getopt() handling instead of the hand-rolled and
IOCCC-worthy "Micro getopt()" macros, plus clean up to the
option handling code:
* Sort the options in the switch statement;
* Plug piddling memory leaks when processing repeated options
by freeing strings before allocating them for a second time;
* Die with a fatal error if the requested report file cannot
be opened for appending;
* Don't call init() before usage() (to prevent the usage
message being mangled by changes to the terminal settings;)
- Clean up the usage message, both in usage() and in the main
program comment, both stylistically (sort and combine options)
and for accuracy (following the manual page, make note of the -s
and -S flags, and use the term 'send' instead of 'say' to reduce
confusion (SAY is the name of a command for output to the user,
not the connection.))
Obtained from: DragonFly
from the .MAKEFLAGS global variable even if it's empty or
unset. This means setting MAKEFLAGS to just an empty string
in the latter case.
If not doing so, make(1) behaved inconsistently WRT MAKEFLAGS.
In particular, it would let a `-f foo' option down to sub-makes
if .MAKEFLAGS was unset. E.g.,
env MAKEFLAGS="-f mymakefile" make
would pass `-f mymakefile' down to sub-makes via their environment
(unless mymakefile added something to .MAKEFLAGS).
But any additional options appearing would change this behaviour to
not passing `-f mymakefile' to sub-makes, as in:
env MAKEFLAGS="-f mymakefile" make -D DUMMY
or
env MAKEFLAGS="-f mymakefile -D DUMMY" make
(unless mymakefile cleared .MAKEFLAGS).
Also make(1) would leave MAKEFLAGS at its initial value if the
makefile set .MAKEFLAGS to an empty value. I.e., it was impossible
to override MAKEFLAGS with an empty value. (Note well that makefiles
are not to touch MAKEFLAGS directly, they alter .MAKEFLAGS instead.
So make(1) can filter out things such as -f when copying MAKEFLAGS
to .MAKEFLAGS at startup. Direct modifications to MAKEFLAGS just go
nowhere.)
While the original intentions of the BSD make authors are somewhat
unclear here, the bug proves that NOT passing -f options down is
the settled behaviour because the opposite behaviour is totally
unreliable in the presence of any other options. In addition, not
passing down -f's found in the environment is consistent with doing
so WRT the command line.
Update the manpage accordingly and make the whole description of
MAKEFLAGS and .MAKEFLAGS more consistent as this change indeed
brings more consistency into the reliable behaviour of make(1).
Submitted by: ru (main.c)
Tested with: make world
little bit and to prevent users from specifying a private mask that may
later restrict other group changes.
- Add a man page which brueffer generously contributed to.
Sponsored by: Nokia
mask none of the upper bits are set.
- Be more careful about enforcing the boundaries of masks and child sets.
- Introduce a few more CPU_* macros for implementing these tests.
- Change the cpusetsize argument to be bytes rather than bits to match
other apis.
Sponsored by: Nokia
explicitly rather than relying on name space pollution to pull it in
for us.
NB: The usage of INT_MIN is somewhat bogus and suspect to my eye, but this
commit doesn't address that issue.
The most important point is that -f option(s) are never copied from
.Ev MAKEFILE to .Va .MAKEFILE by make(1), which is consistent with
handling the command line. (-f silently sit in .Ev MAKEFILE and go
to make's children unless overwritten via .Va .MAKEFILE)
Bump .Dd.
soon.
- Lists of cpus may be specified with -l with ranges specified as low-high and
commas between individual cpus and ranges. ie -l 0-2,4,6-8.
- cpuset can modified -p pids, -t tids, or -s cpusetids.
- cpuset can -g get the current mask for any of the above.
Sponsored by: Nokia
- Fix a malloc buffer overrun: Use a while loop to check whether
the string buffer is big enough after resizing, since doubling
once might not be enough when a very long member name or symbol
name is provided.
- Fix typo.
Reported by: Michael Plass <mfp49_freebsd@plass-family.net>
Tested by: Michael Plass <mfp49_freebsd@plass-family.net>
Reviewed by: jkoshy
Approved by: jkoshy
caused by files that have #endif and no newline on the last line
(reported by joe@). Also fix a benign uninitialized variable bug.
Update and tidy the copyright.
of the GNU utility. The default behavior of our original `du' is to
count hardlinked files only once for each invocation of the utility.
With the new -l option they count towards the final size every time
they are found.
PR: bin/117944
Submitted by: keramida
Reviewed by: des, obrien
MFC after: 2 weeks
source upgrades by falling back to GNU ar(1) as necessary. Option
WITH_BSDAR is gone. Option _WITH_GNUAR to aid in upgrades is *not*
supposed to be set by the user.
Stop bootstrapping BSD ar(1) on the next __FreeBSD_version bump, as
there are no known bugs in it. Bump __FreeBSD_version to anticipate
this and to flag the switch to BSD ar(1), should it be needed for
something.
Input from: obrien, des, kaiw
check if it is invoked as 'bsdranlib'.
Reported by: Michael Plass <mfp49_freebsd [AT] plass-family [DOT] net>
Reviewed by: Michael Plass <mfp49_freebsd [AT] plass-family [DOT] net>
Reviewed by: jkoshy
Approved by: jkoshy (mentor)
Do not mmap 0-size objects and do not try to extract symbol from
0-size objects, but do treat 0-size objects as qualified objects and
accept them as an archive member. (A member with only the header part)
Note that GNU binutils ar on FreeBSD ignores 0-size objects, but on
Linux it accepts them. [1] But, since this is a rare usage, we can
safely ignore the compatibility issue.
Reported by: Michael Plass <mfp49_freebsd [AT] plass-family [DOT] net>
Pointed out by: Michael Plass <mfp49_freebsd [AT] plass-family [DOT] net> [1]
Reviewed by: Michael Plass <mfp49_freebsd [AT] plass-family [DOT] net>
Reviewed by: jkoshy
Approved by: jkoshy (mentor)
itself, not on the type of the file. As such, do a readlink to get
the symbolic link's contents and fail to match if the path isn't a
symbolic link.
Pointed out by: des@
in our find.
The following are nops because they aren't relevant to our find:
-ignore_readdir_race
-noignore_readdir_race
-noleaf
The following aliaes were created:
-gid -> -group [2]
-uid -> -user [2]
-wholename -> -path
-iwholename -> ipath
-mount -> -xdev
-d -> -depth [1]
The following new primaries were created:
-lname like -name, but matches symbolic links only)
-ilname like -lname but case insensitive
-quit exit(0)
-samefile returns true for hard links to the specified file
-true Always true
I changed one primary to match GNU find since I think our use of it violates
POLA
-false Always false (was an alias for -not!)
Also, document the '+' modifier for -execdir, as well as all of the above.
This was previously implemented.
Document the remaining 7 primaries that are in GNU find, but aren't yet
implemented in find(1)
[1] This was done in GNU find for compatibility with FreeBSD, yet they
mixed up command line args and primary args.
[2] -uid/-gid in GNU find ONLY takes a numeric arg, but that arg does the
normal range thing that. GNU find -user and -uid also take a numberic arg,
but don't do the range processing. find(1) does both for -user and -group,
so making -uid and -gid aliases is compatible for all non-error cases used
in GNU find. While not perfect emulation, this seems a reasonable thing
for us.
consists of the null-terminated name and the contents of any structure
you wish to record. A new ktrstruct() function constructs and emits a
KTR_STRUCT record. It is accompanied by convenience macros for struct
stat and struct sockaddr.
In kdump(1), KTR_STRUCT records are handled by a dispatcher function
that runs stringent sanity checks on its contents before handing it
over to individual decoding funtions for each type of structure.
Currently supported structures are struct stat and struct sockaddr for
the AF_INET, AF_INET6 and AF_UNIX families; support for AF_APPLETALK
and AF_IPX is present but disabled, as I am unable to test it properly.
Since 's' was already taken, the letter 't' is used by ktrace(1) to
enable KTR_STRUCT trace points, and in kdump(1) to enable their
decoding.
Derived from patches by Andrew Li <andrew2.li@citi.com>.
PR: kern/117836
MFC after: 3 weeks
binutils ar and ranlib to gar and granlib, respectively.
* Introduce a temporary variable WITH_GNUAR as a safety net.
When buildworld with -DWITH_GNUAR, GNU binutils ar and ranlib
will install as default ones and 'BSD' ar will be disabled.
* Bump __FreeBSD_version to reflect the import of 'BSD' ar(1).
Approved by: jkoshy (mentor)
Reviewed by: jkoshy
Approved by: jkoshy (mentor)
Tested by: erwin (ports build test on pointyhat)
Sponsored by: Google Summer of Code 2007
Reviewed by (earlier version): Jaakko Heinonen <jh[AT]saunalahti.fi>
Tested by (earlier version): Steve Kargl <sgk[AT]troutmask.apl.washington.edu>
Tested by (earlier version): Martin Voros <martin_voros[AT]yahoo.com>
Tested by (earlier version): swell.k[AT]gmail.com
Tested by (earlier version): joel
Tested by (earlier version): Alexey Shuvaev <shuvaev[AT]physik.uni-wuerzburg.de>
Tested by (earlier version): Arjan van Leeuwen <avleeuwen[AT]gmail.com>
Thanks to gabor@ for building ports for it.
Thanks to erwin@ and kris@ for scheduling the ports build test on pointyhat.
And thanks to many others for their feedback.
more human readable by telling the human print routines to use
a smaller buffer to format the value.
This makes it so a value that was previously being printed
as 600000K will now print as 586M.
under it while running. Note that this is still not perfect:
- Try to do something intelligent if kvm_read() fails to read a routing
table structure such as an rtentry, radix_node, or ifnet.
- Don't follow left and right node pointers in radix_nodes unless
RNF_ACTIVE is set in rn_flags. This avoids walking through freed
radix_nodes.
MFC after: 1 week
1) Add missing parens around assignment that is compared to zero.
2) Make some variables that only take non-negative values unsigned.
3) Some casts/type changes to fix other constness warnings.
4) Make one variable a const char *.
5) Make sure termwidth is positive, it doesn't make sense for it to be negative.
Approved by: dds
directory, and jail directory within procstat. While this functionality
is available already in fstat, encapsulating it in the kern.proc.filedesc
sysctl makes it accessible without using kvm and thus without needing
elevated permissions.
The new procstat output looks like:
PID COMM FD T V FLAGS REF OFFSET PRO NAME
76792 tcsh cwd v d -------- - - - /usr/src
76792 tcsh root v d -------- - - - /
76792 tcsh 15 v c rw------ 16 9130 - -
76792 tcsh 16 v c rw------ 16 9130 - -
76792 tcsh 17 v c rw------ 16 9130 - -
76792 tcsh 18 v c rw------ 16 9130 - -
76792 tcsh 19 v c rw------ 16 9130 - -
I am also bumping __FreeBSD_version for this as this new feature will be
used in at least one port.
Reviewed by: rwatson
Approved by: rwatson
were recently), a simple 'make cleandepend; make depend' is sufficient
to keep the tree buildable after a cvs update when doing incremental
builds.
However, kdump and truss use a script which searches for header files
that define ioctls, and generates C code that includes them. This
script will usually not need updating when a header file is removed,
so the normal dependency mechanism will not realize that it needs to
be re-run. One is therefore left with code that references dead files
but will only be removed by a full 'make clean', which defeats the
purpose of incremental builds.
To work around this, modify the cleandepend target in bsd.dep.mk to
also remove any files listed in a new variable named CLEANDEPFILES,
and modify kdump's and truss's Makefiles accordingly.
MFC after: 2 weeks
GNU tar changed -l to match SUSv2 a couple of years ago,
so bsdtar no longer needs to pander to this particular GNUism.
Thanks to: Debian maintainers
MFC after: 7 days
- Handle wrapping correctly when \r appears in the input, and don't
remove the \r from the output.
- For lines longer than 79 characters, don't drop every 80th character.
- Style: Braces around compound while statement.
PR: 114498
Submitted by: Niclas Zeising <niclas.zeising@gmail.com> (earlier version)
more carefully inspecting the return value from sysctl(3). [1]
- Use calloc instead of malloc+memset of zero.
Submitted by: Alexander Chernikov <admin su29 net> [1]
PR: bin/119581
MFC after: 2 weeks
current state, it can handle all but four of the 991 zip files (including
jar files) I was able to identify in the ports tree. The remaining four
are two self-extracting archives and two which have garbage preceding the
first local header. This limitation is a feature of libarchive(3) which
I am currently working to resolve.
The code is unnecessarily large due to the need to emulate the exact
command-line syntax and behaviour of ports/unzip. My initial incompatible
implementation was one quarter the size of the one I am committing here.
* prototypes for optarg/optind on platforms that don't already have them
* Disambiguate version number macros
* Remove unnecessary PACKAGE_NAME macro
* Hook for forthcoming bsdtar test suite
* Sync version number up with the portable distribution
(This does a couple of things that the standard library's strmode()
doesn't; it proved useful in bsdcpio as well, so I pushed it down
into libarchive.)
sys/types.h polution that FreeBSD has in one of its include files.
Since this is a bootstrap tool, include more than is strictly
necessary for FreeBSD.
unused in one go.
From the original PR:
I've observed that linux apps running under the linuxulator
have a habit of leaving behind shared memory segments which
are unused, but which eventually cause the system to run
out of free segments and these apps will stop working.
ipcrm(1) currently only allows removal of unused message
queues, shared memory segments and semaphores on an individual
basis, or those having a matching (non-zero) key. However
it would often be convenient to just do a complete cleanup
of everything, usually as root.
PR: bin/118292
Submitted by: Callum Gibson <callumgibson@optusnet.com.au>
Not reviewed by: grog@
Approved by: grog@
This turns out to be due to an argument botch for hid_report_size.
The PR contained patches to fix the argument botch.
Submitted by: Maurice Castro
PR: usb/118915
because of the absence of a destination directory or if the
"destination directory" is not a directory.
PR: bin/11826
Submitted by: Denis Eremenko <moonshade@pnhz.kz>
Approved by: grog@
X-MFC after: various freezes
user/system/idle stats. -h feeds the memory column through
humanize_number() to reduce the amount of column overflowing. -H turns
this off. -h is turned on by default if stdout is a tty.
no per-thread name is available or the name is identical to the
process name, display "-" instead. Very slightly shrink the COMM
entry to make a bit more room, although this doesn't help with
stack traces much.
Suggested by: thompsa
of the missing functionality from procfs(4) and new functionality for
monitoring and debugging specific processes. procstat(1) operates in
the following modes:
-b Display binary information for the process.
-c Display command line arguments for the process.
-f Display file descriptor information for the process.
-k Display the stacks of kernel threads in the process.
-s Display security credential information for the process.
-t Display thread information for the process.
-v Display virtual memory mappings for the process.
Further revision and modes are expected.
Testing, ideas, etc: cognet, sam, Skip Ford <skip at menantico dot com>
Wesley Shields <wxs at atarininja dot org>
This should fix the double free() bug where there's no tailing newline(\n)
character:
current# echo -n test | tail
testAssertion failed: (run->magic == ARENA_RUN_MAGIC), function
arena_dalloc, file /usr/src/lib/libc/stdlib/malloc.c, line 2448.
Abort (core dumped)
Reviewed by: kib
MFC after: 3 days
doesn't use the default CFLAGS which contain -fno-strict-aliasing.
Until the code is cleaned up, just add -fno-strict-aliasing to the
CFLAGS of these for the tinderboxes' sake, allowing the rest of the
tree to have -Werror enabled again.
current tty as returned from ttyname(3) so it can try to avoid writing to
the current tty if possible. Previously, it did this by trimming off any
leading directory (effectively performing a basename(3) on the path
returned from ttyname(3)). However, this chopped off too much of the path
for ttys who have directories in their name such as pts(4). Instead, just
strip off the leading /dev/ from the path returned by ttyname(3). This
fixes write(1) when using pts(4).
MFC after: 1 week
Reported by: rwatson
to be specified together with either -u or -t to have an effect,
and exit status of 2 is not possible after a Perl->C conversion.
- While here, fix markup.
the open file-listing. It is added as a separate source file, so it can
respect WITH_/WITHOUT_CDDL as compile-flags.
- The warnlevel of the Makefile was decreased to quell solaris #pragma
warnings.
- Expect that fstat(1) doesn't work with kernel compiled with
DEBUG_VFS_LOCKS/DEBUG_LOCKS for now.
Approved by: pjd (mentor)
kthread_add() takes the same parameters as the old kthread_create()
plus a pointer to a process structure, and adds a kernel thread
to that process.
kproc_kthread_add() takes the parameters for kthread_add,
plus a process name and a pointer to a pointer to a process instead of just
a pointer, and if the proc * is NULL, it creates the process to the
specifications required, before adding the thread to it.
All other old kthread_xxx() calls return, but act on (struct thread *)
instead of (struct proc *). One reason to change the name is so that
any old kernel modules that are lying around and expect kthread_create()
to make a process will not just accidentally link.
fix top to show kernel threads by their thread name in -SH mode
add a tdnam formatting option to ps to show thread names.
make all idle threads actual kthreads and put them into their own idled process.
make all interrupt threads kthreads and put them in an interd process
(mainly for aesthetic and accounting reasons)
rename proc 0 to be 'kernel' and it's swapper thread is now 'swapper'
man page fixes to follow.
test MK_INSTALLLIB, users can set WITHOUT_INSTALLLIB. The old
NO_INSTALLLIB is still supported as several makefiles set it.
- While here, fix an install when instructed not to install libs
(usr.bin/lex/lib/Makefile).
PR: bin/114200
Submitted by: Henrik Brix Andersen
At least one port (net-mgmt/net-snmp) creates man-pages which are
in the format:
.SH NAME
The Net-SNMP agent \- The snmp agent responds to SNMP queries from management stations.
.PP
.SS "Modules"
At this moment, makewhatis determines the end of the .SH NAME section
as where it finds .SH again, but there is none here, is it "terminated"
by the .SS.
PR: bin/116706
Submitted by: edwin@
Approved by: re (Ken Smith), grog (mentor)
MFC after: 1 week
support for wide characters.
If the sizeof (wchar_t) times max_length would yield a value beyond
representation in a size_t, exit with a usage error up front, rather than
strange errors down the line from trying to malloc (well, realloc) with a size
of 0.
This is perhaps not the optimal behaviour - a clamp may be more appropriate as
we clamp the value of max_length now anyway, but this is at least better than
segfaulting or worse. On systems which are friendly to malloc with a value of 0
the results could end up being strange corruption of the output.
since "local" includes also synthetic file systems (e.g. /dev, /proc)
and loopback mounts.
This version uses lsvfs to identify file system types that are local
and additionally not synthetik, loopback mounts, or read-only. This
has been suggested by Craig Rodrigues half a year ago. The patch that
has been committed is based on his suggestion, but slightly modified.
The comments in locate.rc have been updated to reflect the change and
o include zfs and xfs in the example file system parameter that can
be used to override the default outlined above.
PR: 114101
Submitted by: rodrigc at crodrigues dot org (Craig Rodrigues)
MFC: 2 weeks
inspect all local file systems, not only ufs and ext2fs. A number
of local file systems has been added over time, and at least zfs
has the potential to become a popular choice. Without this change
a ZFS root file system causes the script to ignore all file-systems
and leads to an empty locate db. (An alternative is to add all the
relevant file systems individually, which means that at least zfs,
xfs, ntfs, ntfs-3g, msdosfs should be added, probably more).
This commit includes the following core components:
* sample configuration file for sensorsd
* rc(8) script and glue code for sensorsd(8)
* sysctl(3) doc fixes for CTL_HW tree
* sysctl(3) documentation for hardware sensors
* sysctl(8) documentation for hardware sensors
* support for the sensor structure for sysctl(8)
* rc.conf(5) documentation for starting sensorsd(8)
* sensor_attach(9) et al documentation
* /sys/kern/kern_sensors.c
o sensor_attach(9) API for drivers to register ksensors
o sensor_task_register(9) API for the update task
o sysctl(3) glue code
o hw.sensors shadow tree for sysctl(8) internal magic
* <sys/sensors.h>
* HW_SENSORS definition for <sys/sysctl.h>
* sensors display for systat(1), including documentation
* sensorsd(8) and all applicable documentation
The userland part of the framework is entirely source-code
compatible with OpenBSD 4.1, 4.2 and -current as of today.
All sensor readings can be viewed with `sysctl hw.sensors`,
monitored in semi-realtime with `systat -sensors` and also
logged with `sensorsd`.
Submitted by: Constantine A. Murenin <cnst@FreeBSD.org>
Sponsored by: Google Summer of Code 2007 (GSoC2007/cnst-sensors)
Mentored by: syrinx
Tested by: many
OKed by: kensmith
Obtained from: OpenBSD (parts)
them (for example when they have logged in from an ip6 source).
- Stick with the initial call to getaudit(2), if it returns E2BIG, use
getaudit_addr(2) instead and set the "extended" flag to indicate that
we the calling credential has an extended subject state.
- Additionally, add the printing of the machine/at_addr (the ip/ip6
addresses)
MFC after: 1 week
Obtained from: TrustedBSD Project
lock experienced contention a number of processes would race to acquire
lock when it was released. This problem resulted in a lot of CPU
load as well as locks being picked up out of order.
Unfortunately, a regression snuck in which allowed multiple threads
to pickup the same lock when -k was not used. This could occur when
multiple processes open a file descriptor to inode X (one process
will be blocked) and the file is unlinked on unlock (thereby removing
the directory entry allow another process to create a new directory
entry for the same file name and lock it).
This changes restores the old algorithm of: wait for the lock, then
acquire lock when we want to unlink the file on exit (specifically
when -k is not used) and keeps the new algorithm for when -k is used,
which yields fairness and improved performance.
Also, update the man page to inform users that if lockf(1) is being
used to facilitate concurrency between a number of processes, it
is recommended that -k be used to reduce CPU load and yeld
fairness with regard to lock ordering.
Collaborated with: jdp
PR: bin/114341
PR: bin/116543
PR: bin/111101
MFC after: 1 week
the threading libraries is built. This simplifies the
logic in makefiles that need to check if the pthreads
support is present. It also fixes a bug where we would
build a threading library that we shouldn't have built:
for example, building with WITHOUT_LIBTHR and the default
value of DEFAULT_THREADING_LIB (libthr) would mistakenly
build the libthr library, but not install it.
Approved by: re (kensmith)
- p_sflag was mostly protected by PROC_LOCK rather than the PROC_SLOCK or
previously the sched_lock. These bugs have existed for some time.
- Allow swapout to try each thread in a process individually and then
swapin the whole process if any of these fail. This allows us to move
most scheduler related swap flags into td_flags.
- Keep ki_sflag for backwards compat but change all in source tools to
use the new and more correct location of P_INMEM.
Reported by: pho
Reviewed by: attilio, kib
Approved by: re (kensmith)
have real idle processes for that.
- Fix the display on SMP by not scaling the sum of %CPU down
to 1. Instead, display raw data as computed by the kernel,
like in top(1).
Reviewed by: bde
Approved by: re (bmah)
MFC after: 1 week
