Commit Graph

146 Commits

Author SHA1 Message Date
Dima Dorfman
21687047cf Fix (for the second time) kvm_getprocs() for the case where no
processes match the given criteria.  Since revision 1.60 of malloc.c,
malloc() and friends return an invalid pointer when given a size of 0.
kvm_getprocs() uses sysctl() with a NULL oldp argument to get an
initial size, but does not check whether it's 0 before passing it to
realloc() (via _kvm_realloc()).  Before the aforementioned malloc()
change, this resulted in a minimal allocation made and a valid poitner
returned, but now results in an invalid, but non-NULL, pointer being
returned.  When this is passed to sysctl(), the latter returns EFAULT
(as it should).
2002-04-07 04:47:58 +00:00
David E. O'Brien
1372519b15 Remove multi-line __P() usage. 2002-03-22 09:22:15 +00:00
David E. O'Brien
69160b1eb7 Remove __P() usage. 2002-03-21 23:54:04 +00:00
David E. O'Brien
be04b6d190 Remove 'register' keyword. 2002-03-21 23:39:28 +00:00
Brian Feldman
49b33de841 Also blindly attempt to fix broken world with respect to proc.p_runtime
changes.
2002-02-22 19:10:09 +00:00
Julian Elischer
65e4542fca I THINK this fixes 'make world'
I'll know as soon as I re-import it and compile it.. :-)
 There is no longer a 'pri' strict in the proc struct.
 the fields are scattered between the ksegrp and thread in question.
2002-02-13 00:10:04 +00:00
Julian Elischer
3daf63fc50 pre-emptively fix a KSE/M3 problem.
Make a slight change so that libkvm reaches the main thread via the
linked list, rather than assuming it is in the proc structure. Both
conditions are true in -current but only the first will be true in
the KSE M3 world.
2002-02-07 20:28:25 +00:00
Ruslan Ermilov
fe42e96eff Finish cleanup in kvm.c revisions 1.10 and 1.11 -- mark sf (swapfile)
argument to kvm_open() and kvm_openfiles() as unused.

BSD didn't read swap since kvm.c CSRG revision 5.21 (u-area is pageable
under new VM.  no need to read from swap.)

The old !NEWVM code was removed in CSRG revision 5.23 (~ten years ago).
2002-01-22 10:07:03 +00:00
Jake Burkholder
e5a86020b0 Adapt to new kernel tsb structure. 2001-12-29 06:43:36 +00:00
Ruslan Ermilov
e6cb3c3608 s/processes/files/ inherited from kvm_getprocs(3).
PR:		docs/32252
Submitted by:	tobez
2001-11-24 15:38:28 +00:00
John Baldwin
9c9c290361 Include sys/param.h instead of sys/types.h to get the definition of the
MIN() macro.

Pointy hat to:	rwatson
2001-11-20 08:26:37 +00:00
Robert Watson
b5dfbbe3f3 o Cleanup of includes: user.h may be a catch-all, but that's not
entirely desirable.  Back out previous commit, and clean up includes
  to be more minimal.

Submitted by:	bde
2001-11-19 21:14:50 +00:00
Robert Watson
123f65b0e9 #include <sys/user.h> rather than individually including a plethora
of kernel include files, reducing the replication of kernel include
dependency information in userland.

Obtained from:	TrustedBSD Project
2001-11-19 15:26:36 +00:00
Jake Burkholder
a967158a85 libkvm for sparc64. Only works for kernel memory so far. 2001-11-18 21:01:09 +00:00
Peter Wemm
15d2f5f04f kern.ps_arg_max_cache is a long, not an int. I believe this is half of
what broke ps on ia64.  It probably also broke on alpha, but the fallback
method of using lseek/read on /proc/*/mem to read ps_strings seems to
work there.  It doesn't on ia64 yet.
2001-11-08 00:23:06 +00:00
Doug Rabson
ba94a466fa Implement va->pa translation for kernel virtual addresses. This is
untested - it only seems to be used for crashdumps.
2001-10-25 09:08:21 +00:00
Doug Rabson
983c1b5875 Partially port kvm to ia64 - virtual to physical translation is incomplete. 2001-10-23 11:05:35 +00:00
Bruce Evans
43ea907a42 Backed out "Compensate for header dethreading [mistakes]" mistakes in
alpha files too.
2001-10-13 04:38:46 +00:00
Bruce Evans
6eabd84580 Compensate for "Compensate for header dethreading" by backing it out. 2001-10-10 17:48:44 +00:00
Ruslan Ermilov
32eef9aeb1 mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00
Matthew Dillon
e67f5b9fca Implement __FBSDID() 2001-09-16 21:35:07 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
Peter Wemm
6f8c6a6977 Make ps -M corefile work again. This has been broken for quite some time.
kvm_proclist() was aborting when it saw the ithreads with no pgrp.
2001-08-24 09:43:44 +00:00
Peter Wemm
f85f304006 Dynamically adjust to the value of KERNBASE in a crashdump, with
a fallback for old kernels without the "kernbase" symbol.
2001-08-24 08:53:30 +00:00
Kris Kennaway
6dac8ac9e5 Mark some functions as __printflike() and/or taking const char * arguments
instead of char *.

MFC after:	2 weeks
2001-08-20 12:53:36 +00:00
Ruslan Ermilov
753d686d34 mdoc(7) police: s/BSD/.Bx/ where appropriate. 2001-08-14 10:01:54 +00:00
Ruslan Ermilov
c75526d5a0 mdoc(7) police: fixed the "new sentence" bogons. 2001-08-10 15:03:10 +00:00
Dima Dorfman
7ebcc426ef Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
Dima Dorfman
70d51341bf mdoc(7) police: remove extraneous .Pp before and/or after .Sh. 2001-07-09 09:54:33 +00:00
Thomas Moestl
e04a7c4ae5 Change this to support the new way swap device information is exported
via sysctl, and clean up some style and (size_t != int) issues.
2001-06-01 22:57:07 +00:00
Robert Watson
b1fc0ec1a7 o Merge contents of struct pcred into struct ucred. Specifically, add the
real uid, saved uid, real gid, and saved gid to ucred, as well as the
  pcred->pc_uidinfo, which was associated with the real uid, only rename
  it to cr_ruidinfo so as not to conflict with cr_uidinfo, which
  corresponds to the effective uid.
o Remove p_cred from struct proc; add p_ucred to struct proc, replacing
  original macro that pointed.
  p->p_ucred to p->p_cred->pc_ucred.
o Universally update code so that it makes use of ucred instead of pcred,
  p->p_ucred instead of p->p_pcred, cr_ruidinfo instead of p_uidinfo,
  cr_{r,sv}{u,g}id instead of p_*, etc.
o Remove pcred0 and its initialization from init_main.c; initialize
  cr_ruidinfo there.
o Restruction many credential modification chunks to always crdup while
  we figure out locking and optimizations; generally speaking, this
  means moving to a structure like this:
        newcred = crdup(oldcred);
        ...
        p->p_ucred = newcred;
        crfree(oldcred);
  It's not race-free, but better than nothing.  There are also races
  in sys_process.c, all inter-process authorization, fork, exec, and
  exit.
o Remove sigio->sio_ruid since sigio->sio_ucred now contains the ruid;
  remove comments indicating that the old arrangement was a problem.
o Restructure exec1() a little to use newcred/oldcred arrangement, and
  use improved uid management primitives.
o Clean up exit1() so as to do less work in credential cleanup due to
  pcred removal.
o Clean up fork1() so as to do less work in credential cleanup and
  allocation.
o Clean up ktrcanset() to take into account changes, and move to using
  suser_xxx() instead of performing a direct uid==0 comparision.
o Improve commenting in various kern_prot.c credential modification
  calls to better document current behavior.  In a couple of places,
  current behavior is a little questionable and we need to check
  POSIX.1 to make sure it's "right".  More commenting work still
  remains to be done.
o Update credential management calls, such as crfree(), to take into
  account new ruidinfo reference.
o Modify or add the following uid and gid helper routines:
      change_euid()
      change_egid()
      change_ruid()
      change_rgid()
      change_svuid()
      change_svgid()
  In each case, the call now acts on a credential not a process, and as
  such no longer requires more complicated process locking/etc.  They
  now assume the caller will do any necessary allocation of an
  exclusive credential reference.  Each is commented to document its
  reference requirements.
o CANSIGIO() is simplified to require only credentials, not processes
  and pcreds.
o Remove lots of (p_pcred==NULL) checks.
o Add an XXX to authorization code in nfs_lock.c, since it's
  questionable, and needs to be considered carefully.
o Simplify posix4 authorization code to require only credentials, not
  processes and pcreds.  Note that this authorization, as well as
  CANSIGIO(), needs to be updated to use the p_cansignal() and
  p_cansched() centralized authorization routines, as they currently
  do not take into account some desirable restrictions that are handled
  by the centralized routines, as well as being inconsistent with other
  similar authorization instances.
o Update libkvm to take these changes into account.

Obtained from:	TrustedBSD Project
Reviewed by:	green, bde, jhb, freebsd-arch, freebsd-audit
2001-05-25 16:59:11 +00:00
Ruslan Ermilov
3ab9a9d0e0 Removed -I${.CURDIR}/.../sys from CFLAGS. 2001-05-18 13:41:42 +00:00
David Malone
d339edcf66 Avoid dividing by zero if kd->procbase->ki_structsize is uninitalised.
(I'm testing the numerator rather than the denominator, which looks
weird, but is the right thing to do here).
2001-05-03 11:26:46 +00:00
Matt Jacob
f045f3077f Do the alpha dance for the change MarkM hath made on the i386 side. 2001-05-02 07:10:52 +00:00
David Malone
0627f53b57 Don't give a warning about "proc size mismatch" if no struct were
returned. (This arose on a list about a month ago when someone
found bogus warnings if they used "ps -Uuser_with_no_processes".)

Approved by:	mckusick
2001-05-01 10:34:15 +00:00
Mark Murray
82633431b3 Compensate for header dethreading. 2001-05-01 09:24:15 +00:00
Ruslan Ermilov
4a558355e5 MAN[1-9] -> MAN. 2001-03-27 17:27:19 +00:00
Peter Wemm
d77052e5fa Find <libkvm.h> in the source tree. This helps standalone builds. 2001-03-21 22:52:48 +00:00
Robert Watson
ae3a37ad44 Adapt libkvm_getswapinfo() to make use of recently committed vm and swap
sysctls exporting swap information.  When running on a live kernel,
the sysctl's will now be used instead of kvm_read, allowing consumers of
this interface to run without privilege (setgid kmem).  Retain the
ability to run on coredumps, or on a kernel using kmem if explicitly
pointed at one.

A side effect of this change is that kvm_getswapinfo() is faster now in
the general case. If the SWIF_DUMP_TREE flag is given (pstat -ss does
this), the radix tree walker, which still uses kvm_read in any case, is
invoked, and therefore does require privilege.

Submitted by:	Thomas Moestl <tmoestl@gmx.net>
Reviewed by:	freebsd-audit
2001-02-23 18:49:16 +00:00
Jake Burkholder
4c85452ba9 Catch up to new priority interface. 2001-02-12 00:21:38 +00:00
Ruslan Ermilov
d0353b836e mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:38:02 +00:00
John Baldwin
6d3e7b9b0b Add a new item to kinfo_proc: ki_sflag to mirror p_sflag. 2001-01-24 12:49:52 +00:00
Garrett Wollman
8b43deacb3 Revert rev. 1.27. This file only included <sys/select.h> because of
brokenness introduced in <sys/select.h> rev. 1.8 which is now OBE.
<sys/tty.h> and <sys/selinfo.h> together do the right thing.
2001-01-20 03:02:46 +00:00
Ruslan Ermilov
32f6256a49 Prepare for mdoc(7)NG. 2001-01-16 09:08:22 +00:00
Ben Smithurst
42680b3a78 Use macro API to <sys/queue.h> 2000-12-30 21:52:34 +00:00
Kirk McKusick
1f7d250182 Change the proc information returned from the kernel so that it
no longer contains kernel specific data structures, but rather
only scalar values and structures that are already part of the
kernel/user interface, specifically rusage and rtprio. It no
longer contains proc, session, pcred, ucred, procsig, vmspace,
pstats, mtx, sigiolst, klist, callout, pasleep, or mdproc. If
any of these changed in size, ps, w, fstat, gcore, systat, and
top would all stop working. The new structure has over 200 bytes
of unassigned space for future values to be added, yet is nearly
100 bytes smaller per entry than the structure that it replaced.
2000-12-12 07:25:57 +00:00
David E. O'Brien
1a37aa566b Add `_PATH_DEVZERO'.
Use _PATH_* where where possible.
2000-12-09 09:35:55 +00:00
Alfred Perlstein
b217bcfe47 remove unneded sys/ucred.h include 2000-11-30 18:34:08 +00:00
Ruslan Ermilov
726b61ab5f Avoid use of direct troff requests in mdoc(7) manual pages. 2000-11-10 17:46:15 +00:00
Brian Feldman
1da729a59e Good, fixing the header showed incorrect usage of it! #define _KERNEL
here for the include of sys/select.h.
2000-08-06 17:03:09 +00:00