This Implements the mumbled about "Jail" feature.
This is a seriously beefed up chroot kind of thing. The process is jailed along the same lines as a chroot does it, but with additional tough restrictions imposed on what the superuser can do. For all I know, it is safe to hand over the root bit inside a prison to the customer living in that prison, this is what it was developed for in fact: "real virtual servers". Each prison has an ip number associated with it, which all IP communications will be coerced to use and each prison has its own hostname. Needless to say, you need more RAM this way, but the advantage is that each customer can run their own particular version of apache and not stomp on the toes of their neighbors. It generally does what one would expect, but setting up a jail still takes a little knowledge. A few notes: I have no scripts for setting up a jail, don't ask me for them. The IP number should be an alias on one of the interfaces. mount a /proc in each jail, it will make ps more useable. /proc/<pid>/status tells the hostname of the prison for jailed processes. Quotas are only sensible if you have a mountpoint per prison. There are no privisions for stopping resource-hogging. Some "#ifdef INET" and similar may be missing (send patches!) If somebody wants to take it from here and develop it into more of a "virtual machine" they should be most welcome! Tools, comments, patches & documentation most welcome. Have fun... Sponsored by: http://www.rndassociates.com/ Run for almost a year by: http://www.servetheweb.com/
This commit is contained in:
parent
02daf150a4
commit
75c1354190
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=46155
@ -36,7 +36,7 @@
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static char sccsid[] = "@(#)print.c 8.6 (Berkeley) 4/16/94";
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#endif
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static const char rcsid[] =
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"$Id: print.c,v 1.33 1998/11/25 09:34:00 dfr Exp $";
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"$Id: print.c,v 1.34 1999/04/06 03:17:57 peter Exp $";
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#endif /* not lint */
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#include <sys/param.h>
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@ -222,6 +222,8 @@ state(k, ve)
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*cp++ = 's';
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if ((flag & P_CONTROLT) && KI_EPROC(k)->e_pgid == KI_EPROC(k)->e_tpgid)
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*cp++ = '+';
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if (flag & P_JAILED)
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*cp++ = 'J';
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*cp = '\0';
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(void)printf("%-*s", v->width, buf);
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}
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|
@ -30,7 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)ps.1 8.3 (Berkeley) 4/18/94
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.\" $Id: ps.1,v 1.19 1998/06/04 07:02:59 jkoshy Exp $
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.\" $Id: ps.1,v 1.20 1999/04/06 03:18:57 peter Exp $
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.\"
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.Dd April 18, 1994
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.Dt PS 1
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@ -243,6 +243,11 @@ The first letter indicates the run state of the process:
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Marks a process in disk (or other short term, uninterruptible) wait.
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.It I
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Marks a process that is idle (sleeping for longer than about 20 seconds).
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.It J
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Marks a process which is in
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.Xr jail 2 .
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The hostname of the prison can be found in
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.Ql Li /proc/<pid>/status .
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.It R
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Marks a runnable process.
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.It S
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|
@ -1,5 +1,5 @@
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# @(#)Makefile.inc 8.3 (Berkeley) 10/24/94
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# $Id: Makefile.inc,v 1.60 1999/04/05 07:38:07 bde Exp $
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# $Id: Makefile.inc,v 1.61 1999/04/11 21:14:40 dt Exp $
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# sys sources
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.PATH: ${.CURDIR}/../libc/${MACHINE_ARCH}/sys ${.CURDIR}/../libc/sys
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@ -82,7 +82,7 @@ MAN2+= _exit.2 accept.2 access.2 acct.2 adjtime.2 aio_read.2 \
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getpeername.2 getpgrp.2 getpid.2 getpriority.2 getrlimit.2 \
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getrusage.2 getsid.2 getsockname.2 \
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getsockopt.2 gettimeofday.2 getuid.2 \
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intro.2 ioctl.2 issetugid.2 kill.2 \
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intro.2 ioctl.2 issetugid.2 jail.2 kill.2 \
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kldfind.2 kldfirstmod.2 kldload.2 kldnext.2 kldstat.2 kldunload.2 \
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ktrace.2 link.2 listen.2 lseek.2 \
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madvise.2 mincore.2 minherit.2 mkdir.2 mkfifo.2 mknod.2 mlock.2 mmap.2 \
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|
87
lib/libc/sys/jail.2
Normal file
87
lib/libc/sys/jail.2
Normal file
@ -0,0 +1,87 @@
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.\"
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.\"----------------------------------------------------------------------------
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.\""THE BEER-WARE LICENSE" (Revision 42):
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.\"<phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you
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.\"can do whatever you want with this stuff. If we meet some day, and you think
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.\"this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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.\"----------------------------------------------------------------------------
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.\"
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.\"$Id: malloc.c,v 1.44 1999/03/28 14:16:05 phk Exp $
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.\"
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.\"
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.Dd April 28, 1999
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.Dt JAIL 2
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.Os FreeBSD 4.0
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.Sh NAME
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.Nm jail
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.Nd Imprison current process and future decendants.
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.Sh SYNOPSIS
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.Fd #include <sys/types.h>
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.Fd #include <sys/jail.h>
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.Ft int
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.Fn jail "struct *jail"
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.Sh DESCRIPTION
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The
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.Nm
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system call sets up a jail and locks the current process in it.
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.Pp
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The argument is a pointer to a structure describing the prison:
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.Bd -literal -offset indent
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struct jail {
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char *path;
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char *hostname;
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u_int32_t ip_number;
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};
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.Ed
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.Pp
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The
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.Dq Li path
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pointer should be set to the directory which is to be the root of the
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prison.
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.Pp
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The
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.Dq Li hostname
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pointer can be set the hostname of the prison. This can be changed
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from the inside of the prison.
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.Pp
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The
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.Dq Li ip_number
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can be set to the IP number assigned to the prison.
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.Sh PRISON ?
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Once a process has been put in a prison, it and its decendants cannot escape
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the prison. It is not possible to add a process to a preexisting prison.
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.Pp
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Inside the prison, the concept of "superuser" is very diluted, in general
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it can be assumed that nothing can be mangled from inside a prison, that
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doesn't exist inside that prison (ie: the directory tree below
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.Dq Li path .
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.Pp
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All IP activity will be forced to happen to/from the IP number specified,
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which should be an alias on one of the systems interfaces.
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.Pp
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It is possible to identify a process as jailed by examining
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.Dq Li /proc/<pid>/status :
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it will show a field near the end of the line, either as
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a single hyphen for a process at large, or the hostname currently
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set for the prison for jailed processes.
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.Sh ERRORS
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.Fn Jail
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calls
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.Xr chroot 2
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internally, so the it can fail for all the same reasons.
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Please consult the
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.Xr chroot 2
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manual page for details.
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.Sh SEE ALSO
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.Xr chroot 2
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.Xr chdir 2
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.Sh HISTORY
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The
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.Fn jail
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function call appeared in
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.Fx 4.0 .
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.Pp
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The jail feature was written by Poul-Henning Kamp for
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R&D Associates
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.Dq Li http://www.rndassociates.com/
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who contributed it to FreeBSD.
|
@ -31,7 +31,7 @@
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: suser.9,v 1.4 1997/03/07 02:53:37 jmg Exp $
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.\" $Id: suser.9,v 1.5 1998/01/16 18:06:23 bde Exp $
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.\"
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.Dd Oct 15, 1996
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.Dt SUSER 9
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@ -43,25 +43,60 @@
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.Fd #include <sys/param.h>
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.Fd #include <sys/ucred.h>
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.Ft int
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.Fn suser "struct ucred *cred, u_short *acflag"
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.Fn suser "struct proc *proc"
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.Ft int
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.Fn suser_xxx "struct ucred *cred, struct proc *proc, int flags"
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.Sh DESCRIPTION
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The
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.Nm
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function checks if the credentials given include superuser powers.
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and
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.Nm suser_xxx
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functions checks if the credentials given include superuser powers.
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.Pp
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The
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.Nm
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routine notes the fact that superuser powers have been used in the
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word pointed to by the second argument which should be a pointer to
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the p_acflags word of the proc structure. If the second argument is NULL
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then the usage is not noted. Because part of it's function is to notice
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function is the most common, and should be used unless special
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circumstances dictate otherwise.
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.Pp
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The
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.Nm suser_xxx
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function should be used when the credentials to be checked are
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not the process' own, when there is no process or when superuser
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powers should be extended to prisoned roots.
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.Pp
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By default a process does not command superuser powers if it has
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been imprisoned by the
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.Xr jail 2
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system call.
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There are cases however where this is appropriate, and this can
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be done by setting the
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.Ql PRISON_ROOT
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bit in the flags argument to the
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.Nm suser_xxx
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function. It is important to review carefully in each case that
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this does not weaken the prison. Generally only where the action
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is protected by the
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.Xr chroot 2
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implicit in
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.Xr jail 2
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call should such powers be granted.
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.Pp
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The
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.Nm
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and
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.Nm suser_xxx
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functions notes the fact that superuser powers have been used in the
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process structure of the process specified.
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Because part of its function is to notice
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whether super powers have been used,
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.Nm
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should be called after other permission possibilities have been exhausted.
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the functions should only be called after other permission
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possibilities have been exhausted.
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.Sh RETURN VALUES
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The
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.Nm
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function returns 0 if the user has super powers and EPERM otherwise.
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and
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.Nm suser_xxx
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functions returns 0 if the user has super powers and EPERM otherwise.
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This is the
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.Em reverse logic
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of some other implementations of
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|
@ -275,6 +275,7 @@ kern/kern_environment.c standard
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kern/kern_exec.c standard
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kern/kern_exit.c standard
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kern/kern_fork.c standard
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kern/kern_jail.c standard
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kern/kern_ktrace.c standard
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kern/kern_lock.c standard
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kern/kern_lockf.c standard
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|
@ -1,4 +1,4 @@
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||||
/* $Id: msdosfs_vnops.c,v 1.81 1999/01/27 22:42:09 dillon Exp $ */
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/* $Id: msdosfs_vnops.c,v 1.82 1999/04/27 11:16:51 phk Exp $ */
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||||
/* $NetBSD: msdosfs_vnops.c,v 1.68 1998/02/10 14:10:04 mrg Exp $ */
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/*-
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@ -431,7 +431,7 @@ msdosfs_setattr(ap)
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||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
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||||
return (EROFS);
|
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if (cred->cr_uid != pmp->pm_uid &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)))
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||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)))
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return (error);
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/*
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* We are very inconsistent about handling unsupported
|
||||
@ -472,7 +472,7 @@ msdosfs_setattr(ap)
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gid = pmp->pm_gid;
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||||
if ((cred->cr_uid != pmp->pm_uid || uid != pmp->pm_uid ||
|
||||
(gid != pmp->pm_gid && !groupmember(gid, cred))) &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)))
|
||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)))
|
||||
return error;
|
||||
if (uid != pmp->pm_uid || gid != pmp->pm_gid)
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return EINVAL;
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||||
@ -504,7 +504,7 @@ msdosfs_setattr(ap)
|
||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
||||
return (EROFS);
|
||||
if (cred->cr_uid != pmp->pm_uid &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)) &&
|
||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)) &&
|
||||
((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
|
||||
(error = VOP_ACCESS(ap->a_vp, VWRITE, cred, ap->a_p))))
|
||||
return (error);
|
||||
@ -527,7 +527,7 @@ msdosfs_setattr(ap)
|
||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
||||
return (EROFS);
|
||||
if (cred->cr_uid != pmp->pm_uid &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)))
|
||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)))
|
||||
return (error);
|
||||
if (vp->v_type != VDIR) {
|
||||
/* We ignore the read and execute bits. */
|
||||
|
@ -37,7 +37,7 @@
|
||||
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
|
||||
*
|
||||
* From:
|
||||
* $Id: procfs.h,v 1.21 1999/01/05 03:53:06 peter Exp $
|
||||
* $Id: procfs.h,v 1.22 1999/04/27 11:16:35 phk Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -92,7 +92,8 @@ struct pfsnode {
|
||||
* Evaluates to 1 if access is allowed.
|
||||
*/
|
||||
#define CHECKIO(p1, p2) \
|
||||
((((p1)->p_cred->pc_ucred->cr_uid == (p2)->p_cred->p_ruid) && \
|
||||
(PRISON_CHECK(p1, p2) && \
|
||||
(((p1)->p_cred->pc_ucred->cr_uid == (p2)->p_cred->p_ruid) && \
|
||||
((p1)->p_cred->p_ruid == (p2)->p_cred->p_ruid) && \
|
||||
((p1)->p_cred->p_svuid == (p2)->p_cred->p_ruid) && \
|
||||
((p2)->p_flag & P_SUGID) == 0) || (suser((p1)) == 0))
|
||||
|
@ -37,12 +37,13 @@
|
||||
* @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
|
||||
*
|
||||
* From:
|
||||
* $Id: procfs_status.c,v 1.11 1998/07/11 07:45:45 bde Exp $
|
||||
* $Id: procfs_status.c,v 1.12 1999/01/05 03:53:06 peter Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/jail.h>
|
||||
#include <sys/vnode.h>
|
||||
#include <sys/tty.h>
|
||||
#include <sys/resourcevar.h>
|
||||
@ -134,6 +135,11 @@ procfs_dostatus(curp, p, pfs, uio)
|
||||
|
||||
for (i = 0; i < cr->cr_ngroups; i++)
|
||||
ps += sprintf(ps, ",%lu", (u_long)cr->cr_groups[i]);
|
||||
|
||||
if (p->p_prison)
|
||||
ps += sprintf(ps, " %s", p->p_prison->pr_host);
|
||||
else
|
||||
ps += sprintf(ps, " -");
|
||||
ps += sprintf(ps, "\n");
|
||||
|
||||
xlen = ps - psbuf;
|
||||
|
@ -36,7 +36,7 @@
|
||||
*
|
||||
* @(#)procfs_vnops.c 8.18 (Berkeley) 5/21/95
|
||||
*
|
||||
* $Id: procfs_vnops.c,v 1.64 1999/01/27 22:42:07 dillon Exp $
|
||||
* $Id: procfs_vnops.c,v 1.65 1999/04/27 11:16:39 phk Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -134,6 +134,8 @@ procfs_open(ap)
|
||||
p2 = PFIND(pfs->pfs_pid);
|
||||
if (p2 == NULL)
|
||||
return (ENOENT);
|
||||
if (!PRISON_CHECK(ap->a_p, p2))
|
||||
return (ENOENT);
|
||||
|
||||
switch (pfs->pfs_type) {
|
||||
case Pmem:
|
||||
@ -835,6 +837,8 @@ procfs_readdir(ap)
|
||||
p = PFIND(pfs->pfs_pid);
|
||||
if (p == NULL)
|
||||
break;
|
||||
if (!PRISON_CHECK(curproc, p))
|
||||
break;
|
||||
|
||||
for (pt = &proc_targets[i];
|
||||
uio->uio_resid >= UIO_MX && i < nproc_targets; pt++, i++) {
|
||||
@ -893,7 +897,14 @@ procfs_readdir(ap)
|
||||
|
||||
default:
|
||||
while (pcnt < i) {
|
||||
p = p->p_list.le_next;
|
||||
if (!p)
|
||||
goto done;
|
||||
if (!PRISON_CHECK(curproc, p))
|
||||
continue;
|
||||
pcnt++;
|
||||
}
|
||||
while (!PRISON_CHECK(curproc, p)) {
|
||||
p = p->p_list.le_next;
|
||||
if (!p)
|
||||
goto done;
|
||||
|
@ -1157,7 +1157,7 @@ ext2_makeinode(mode, dvp, vpp, cnp)
|
||||
tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
|
||||
ip->i_nlink = 1;
|
||||
if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
|
||||
suser_xxx(cnp->cn_cred, NULL))
|
||||
suser_xxx(cnp->cn_cred, 0, PRISON_ROOT))
|
||||
ip->i_mode &= ~ISGID;
|
||||
|
||||
if (cnp->cn_flags & ISWHITEOUT)
|
||||
|
@ -1157,7 +1157,7 @@ ext2_makeinode(mode, dvp, vpp, cnp)
|
||||
tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
|
||||
ip->i_nlink = 1;
|
||||
if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
|
||||
suser_xxx(cnp->cn_cred, NULL))
|
||||
suser_xxx(cnp->cn_cred, 0, PRISON_ROOT))
|
||||
ip->i_mode &= ~ISGID;
|
||||
|
||||
if (cnp->cn_flags & ISWHITEOUT)
|
||||
|
@ -39,7 +39,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)init_main.c 8.9 (Berkeley) 1/21/94
|
||||
* $Id: init_main.c,v 1.113 1999/04/24 18:50:48 dt Exp $
|
||||
* $Id: init_main.c,v 1.114 1999/04/28 01:04:25 luoqi Exp $
|
||||
*/
|
||||
|
||||
#include "opt_devfs.h"
|
||||
@ -409,6 +409,9 @@ proc0_init(dummy)
|
||||
p->p_ucred = crget();
|
||||
p->p_ucred->cr_ngroups = 1; /* group 0 */
|
||||
|
||||
/* Don't jail it */
|
||||
p->p_prison = 0;
|
||||
|
||||
/* Create procsig. */
|
||||
p->p_procsig = &procsig0;
|
||||
p->p_procsig->ps_refcnt = 1;
|
||||
|
@ -2,7 +2,7 @@
|
||||
* System call switch table.
|
||||
*
|
||||
* DO NOT EDIT-- this file is automatically generated.
|
||||
* created from Id: syscalls.master,v 1.57 1999/04/04 21:41:16 dt Exp
|
||||
* created from Id: syscalls.master,v 1.58 1999/04/28 11:28:49 phk Exp
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -357,4 +357,5 @@ struct sysent sysent[] = {
|
||||
{ 2, (sy_call_t *)utrace }, /* 335 = utrace */
|
||||
{ 8, (sy_call_t *)sendfile }, /* 336 = sendfile */
|
||||
{ 3, (sy_call_t *)kldsym }, /* 337 = kldsym */
|
||||
{ 1, (sy_call_t *)jail }, /* 338 = jail */
|
||||
};
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_exit.c 8.7 (Berkeley) 2/12/94
|
||||
* $Id: kern_exit.c,v 1.78 1999/04/17 08:36:04 peter Exp $
|
||||
* $Id: kern_exit.c,v 1.79 1999/04/28 01:04:26 luoqi Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -60,6 +60,7 @@
|
||||
#include <sys/shm.h>
|
||||
#include <sys/sem.h>
|
||||
#include <sys/aio.h>
|
||||
#include <sys/jail.h>
|
||||
|
||||
#ifdef COMPAT_43
|
||||
#include <machine/reg.h>
|
||||
@ -507,6 +508,12 @@ wait1(q, uap, compat)
|
||||
p->p_cred = NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Destroy empty prisons
|
||||
*/
|
||||
if (p->p_prison && !--p->p_prison->pr_ref)
|
||||
FREE(p->p_prison, M_PRISON);
|
||||
|
||||
/*
|
||||
* Finally finished with old proc entry.
|
||||
* Unlink it from its process group and free it.
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_fork.c 8.6 (Berkeley) 4/8/94
|
||||
* $Id: kern_fork.c,v 1.59 1999/04/24 11:25:01 dt Exp $
|
||||
* $Id: kern_fork.c,v 1.60 1999/04/28 01:04:27 luoqi Exp $
|
||||
*/
|
||||
|
||||
#include "opt_ktrace.h"
|
||||
@ -54,6 +54,7 @@
|
||||
#include <sys/acct.h>
|
||||
#include <sys/ktrace.h>
|
||||
#include <sys/unistd.h>
|
||||
#include <sys/jail.h>
|
||||
|
||||
#include <vm/vm.h>
|
||||
#include <sys/lock.h>
|
||||
@ -308,6 +309,11 @@ fork1(p1, flags)
|
||||
p2->p_cred->p_refcnt = 1;
|
||||
crhold(p1->p_ucred);
|
||||
|
||||
if (p2->p_prison) {
|
||||
p2->p_prison->pr_ref++;
|
||||
p2->p_flag |= P_JAILED;
|
||||
}
|
||||
|
||||
if (flags & RFSIGSHARE) {
|
||||
p2->p_procsig = p1->p_procsig;
|
||||
p2->p_procsig->ps_refcnt++;
|
||||
|
114
sys/kern/kern_jail.c
Normal file
114
sys/kern/kern_jail.c
Normal file
@ -0,0 +1,114 @@
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/errno.h>
|
||||
#include <sys/sysproto.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/jail.h>
|
||||
#include <sys/socket.h>
|
||||
#include <net/if.h>
|
||||
#include <netinet/in.h>
|
||||
|
||||
MALLOC_DEFINE(M_PRISON, "prison", "Prison structures");
|
||||
|
||||
int
|
||||
jail(p, uap)
|
||||
struct proc *p;
|
||||
struct jail_args /* {
|
||||
syscallarg(struct jail *) jail;
|
||||
} */ *uap;
|
||||
{
|
||||
int error;
|
||||
struct prison *pr;
|
||||
struct jail j;
|
||||
struct chroot_args ca;
|
||||
|
||||
error = suser(p);
|
||||
if (error)
|
||||
return (error);
|
||||
error = copyin(uap->jail, &j, sizeof j);
|
||||
if (error)
|
||||
return (error);
|
||||
MALLOC(pr, struct prison *, sizeof *pr , M_PRISON, M_WAITOK);
|
||||
bzero((caddr_t)pr, sizeof *pr);
|
||||
error = copyinstr(j.hostname, &pr->pr_host, sizeof pr->pr_host, 0);
|
||||
if (error)
|
||||
goto bail;
|
||||
pr->pr_ip = j.ip_number;
|
||||
|
||||
ca.path = j.path;
|
||||
error = chroot(p, &ca);
|
||||
if (error)
|
||||
goto bail;
|
||||
|
||||
pr->pr_ref++;
|
||||
p->p_prison = pr;
|
||||
p->p_flag |= P_JAILED;
|
||||
return (0);
|
||||
|
||||
bail:
|
||||
FREE(pr, M_PRISON);
|
||||
return (error);
|
||||
}
|
||||
|
||||
int
|
||||
prison_ip(struct proc *p, int flag, u_int32_t *ip)
|
||||
{
|
||||
u_int32_t tmp;
|
||||
|
||||
if (!p->p_prison)
|
||||
return (0);
|
||||
if (flag)
|
||||
tmp = *ip;
|
||||
else
|
||||
tmp = ntohl(*ip);
|
||||
if (tmp == INADDR_ANY) {
|
||||
if (flag)
|
||||
*ip = p->p_prison->pr_ip;
|
||||
else
|
||||
*ip = htonl(p->p_prison->pr_ip);
|
||||
return (0);
|
||||
}
|
||||
if (p->p_prison->pr_ip != tmp)
|
||||
return (1);
|
||||
return (0);
|
||||
}
|
||||
|
||||
void
|
||||
prison_remote_ip(struct proc *p, int flag, u_int32_t *ip)
|
||||
{
|
||||
u_int32_t tmp;
|
||||
|
||||
if (!p->p_prison)
|
||||
return;
|
||||
if (flag)
|
||||
tmp = *ip;
|
||||
else
|
||||
tmp = ntohl(*ip);
|
||||
if (tmp == 0x7f000001) {
|
||||
if (flag)
|
||||
*ip = p->p_prison->pr_ip;
|
||||
else
|
||||
*ip = htonl(p->p_prison->pr_ip);
|
||||
return;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
int
|
||||
prison_if(struct proc *p, struct sockaddr *sa)
|
||||
{
|
||||
struct sockaddr_in *sai = (struct sockaddr_in*) sa;
|
||||
int ok;
|
||||
|
||||
if (sai->sin_family != AF_INET)
|
||||
ok = 0;
|
||||
else if (p->p_prison->pr_ip != ntohl(sai->sin_addr.s_addr))
|
||||
ok = 1;
|
||||
else
|
||||
ok = 0;
|
||||
return (ok);
|
||||
}
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_ktrace.c 8.2 (Berkeley) 9/23/93
|
||||
* $Id: kern_ktrace.c,v 1.24 1998/11/10 09:16:29 peter Exp $
|
||||
* $Id: kern_ktrace.c,v 1.25 1998/12/10 01:47:41 rvb Exp $
|
||||
*/
|
||||
|
||||
#include "opt_ktrace.h"
|
||||
@ -515,6 +515,8 @@ ktrcanset(callp, targetp)
|
||||
register struct pcred *caller = callp->p_cred;
|
||||
register struct pcred *target = targetp->p_cred;
|
||||
|
||||
if (!PRISON_CHECK(callp, targetp))
|
||||
return (0);
|
||||
if ((caller->pc_ucred->cr_uid == target->p_ruid &&
|
||||
target->p_ruid == target->p_svuid &&
|
||||
caller->p_rgid == target->p_rgid && /* XXX */
|
||||
|
@ -37,7 +37,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94
|
||||
* $Id: kern_mib.c,v 1.17 1999/01/25 18:26:09 dillon Exp $
|
||||
* $Id: kern_mib.c,v 1.18 1999/01/26 07:37:11 dillon Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -45,6 +45,7 @@
|
||||
#include <sys/systm.h>
|
||||
#include <sys/sysctl.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/jail.h>
|
||||
#include <sys/unistd.h>
|
||||
|
||||
#if defined(SMP)
|
||||
@ -73,6 +74,9 @@ SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW, 0,
|
||||
SYSCTL_NODE(, CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0,
|
||||
"p1003_1b, (see p1003_1b.h)");
|
||||
|
||||
SYSCTL_NODE(_kern, OID_AUTO, prison, CTLFLAG_RW, 0,
|
||||
"Prison rules");
|
||||
|
||||
SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease, CTLFLAG_RD, osrelease, 0, "");
|
||||
|
||||
SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD, 0, BSD, "");
|
||||
@ -124,8 +128,24 @@ SYSCTL_STRING(_hw, HW_MACHINE_ARCH, machine_arch, CTLFLAG_RD,
|
||||
|
||||
char hostname[MAXHOSTNAMELEN];
|
||||
|
||||
SYSCTL_STRING(_kern, KERN_HOSTNAME, hostname, CTLFLAG_RW,
|
||||
hostname, sizeof(hostname), "");
|
||||
static int
|
||||
sysctl_hostname SYSCTL_HANDLER_ARGS
|
||||
{
|
||||
int error;
|
||||
|
||||
if (req->p->p_prison)
|
||||
error = sysctl_handle_string(oidp,
|
||||
req->p->p_prison->pr_host,
|
||||
sizeof req->p->p_prison->pr_host, req);
|
||||
else
|
||||
error = sysctl_handle_string(oidp,
|
||||
hostname, sizeof hostname, req);
|
||||
return (error);
|
||||
}
|
||||
|
||||
SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
|
||||
CTLTYPE_STRING|CTLFLAG_RW|CTLFLAG_PRISON,
|
||||
0, 0, sysctl_hostname, "A", "");
|
||||
|
||||
int securelevel = -1;
|
||||
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_proc.c 8.7 (Berkeley) 2/14/95
|
||||
* $Id: kern_proc.c,v 1.45 1999/01/28 00:57:47 dillon Exp $
|
||||
* $Id: kern_proc.c,v 1.46 1999/02/19 14:25:34 luoqi Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -500,6 +500,8 @@ sysctl_kern_proc SYSCTL_HANDLER_ARGS
|
||||
p = pfind((pid_t)name[0]);
|
||||
if (!p)
|
||||
return (0);
|
||||
if (!PRISON_CHECK(curproc, p))
|
||||
return (0);
|
||||
error = sysctl_out_proc(p, req, 0);
|
||||
return (error);
|
||||
}
|
||||
@ -561,6 +563,9 @@ sysctl_kern_proc SYSCTL_HANDLER_ARGS
|
||||
break;
|
||||
}
|
||||
|
||||
if (!PRISON_CHECK(curproc, p))
|
||||
continue;
|
||||
|
||||
error = sysctl_out_proc(p, req, doingzomb);
|
||||
if (error)
|
||||
return (error);
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_prot.c 8.6 (Berkeley) 1/21/94
|
||||
* $Id: kern_prot.c,v 1.45 1999/04/27 11:16:01 phk Exp $
|
||||
* $Id: kern_prot.c,v 1.46 1999/04/27 12:21:06 phk Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -395,7 +395,7 @@ setuid(p, uap)
|
||||
#ifdef POSIX_APPENDIX_B_4_2_2 /* Use BSD-compat clause from B.4.2.2 */
|
||||
uid != pc->pc_ucred->cr_uid && /* allow setuid(geteuid()) */
|
||||
#endif
|
||||
(error = suser(p)))
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
|
||||
#ifdef _POSIX_SAVED_IDS
|
||||
@ -407,7 +407,7 @@ setuid(p, uap)
|
||||
#ifdef POSIX_APPENDIX_B_4_2_2 /* Use the clause from B.4.2.2 */
|
||||
uid == pc->pc_ucred->cr_uid ||
|
||||
#endif
|
||||
suser(p) == 0) /* we are using privs */
|
||||
suser_xxx(0, p, PRISON_ROOT) == 0) /* we are using privs */
|
||||
#endif
|
||||
{
|
||||
/*
|
||||
@ -467,7 +467,7 @@ seteuid(p, uap)
|
||||
euid = uap->euid;
|
||||
if (euid != pc->p_ruid && /* allow seteuid(getuid()) */
|
||||
euid != pc->p_svuid && /* allow seteuid(saved uid) */
|
||||
(error = suser(p)))
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
/*
|
||||
* Everything's okay, do it. Copy credentials so other references do
|
||||
@ -515,7 +515,7 @@ setgid(p, uap)
|
||||
#ifdef POSIX_APPENDIX_B_4_2_2 /* Use BSD-compat clause from B.4.2.2 */
|
||||
gid != pc->pc_ucred->cr_groups[0] && /* allow setgid(getegid()) */
|
||||
#endif
|
||||
(error = suser(p)))
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
|
||||
#ifdef _POSIX_SAVED_IDS
|
||||
@ -527,7 +527,7 @@ setgid(p, uap)
|
||||
#ifdef POSIX_APPENDIX_B_4_2_2 /* use the clause from B.4.2.2 */
|
||||
gid == pc->pc_ucred->cr_groups[0] ||
|
||||
#endif
|
||||
suser(p) == 0) /* we are using privs */
|
||||
suser_xxx(0, p, PRISON_ROOT) == 0) /* we are using privs */
|
||||
#endif
|
||||
{
|
||||
/*
|
||||
@ -579,7 +579,7 @@ setegid(p, uap)
|
||||
egid = uap->egid;
|
||||
if (egid != pc->p_rgid && /* allow setegid(getgid()) */
|
||||
egid != pc->p_svgid && /* allow setegid(saved gid) */
|
||||
(error = suser(p)))
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
if (pc->pc_ucred->cr_groups[0] != egid) {
|
||||
pc->pc_ucred = crcopy(pc->pc_ucred);
|
||||
@ -605,7 +605,7 @@ setgroups(p, uap)
|
||||
register u_int ngrp;
|
||||
int error;
|
||||
|
||||
if ((error = suser(p)))
|
||||
if ((error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
ngrp = uap->gidsetsize;
|
||||
if (ngrp > NGROUPS)
|
||||
@ -654,7 +654,7 @@ setreuid(p, uap)
|
||||
if (((ruid != (uid_t)-1 && ruid != pc->p_ruid && ruid != pc->p_svuid) ||
|
||||
(euid != (uid_t)-1 && euid != pc->pc_ucred->cr_uid &&
|
||||
euid != pc->p_ruid && euid != pc->p_svuid)) &&
|
||||
(error = suser(p)) != 0)
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)) != 0)
|
||||
return (error);
|
||||
|
||||
if (euid != (uid_t)-1 && pc->pc_ucred->cr_uid != euid) {
|
||||
@ -697,7 +697,7 @@ setregid(p, uap)
|
||||
if (((rgid != (gid_t)-1 && rgid != pc->p_rgid && rgid != pc->p_svgid) ||
|
||||
(egid != (gid_t)-1 && egid != pc->pc_ucred->cr_groups[0] &&
|
||||
egid != pc->p_rgid && egid != pc->p_svgid)) &&
|
||||
(error = suser(p)) != 0)
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)) != 0)
|
||||
return (error);
|
||||
|
||||
if (egid != (gid_t)-1 && pc->pc_ucred->cr_groups[0] != egid) {
|
||||
@ -769,20 +769,28 @@ int
|
||||
suser(p)
|
||||
struct proc *p;
|
||||
{
|
||||
return suser_xxx(p->p_ucred, &p->p_acflag);
|
||||
return suser_xxx(0, p, 0);
|
||||
}
|
||||
|
||||
int
|
||||
suser_xxx(cred, acflag)
|
||||
suser_xxx(cred, proc, flag)
|
||||
struct ucred *cred;
|
||||
u_short *acflag;
|
||||
struct proc *proc;
|
||||
int flag;
|
||||
{
|
||||
if (cred->cr_uid == 0) {
|
||||
if (acflag)
|
||||
*acflag |= ASU;
|
||||
return (0);
|
||||
if (!cred && !proc) {
|
||||
printf("suser_xxx(): THINK!\n");
|
||||
return (EPERM);
|
||||
}
|
||||
return (EPERM);
|
||||
if (!cred)
|
||||
cred = proc->p_ucred;
|
||||
if (cred->cr_uid != 0)
|
||||
return (EPERM);
|
||||
if (proc && proc->p_prison && !(flag & PRISON_ROOT))
|
||||
return (EPERM);
|
||||
if (proc)
|
||||
proc->p_acflag |= ASU;
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -883,7 +891,7 @@ setlogin(p, uap)
|
||||
int error;
|
||||
char logintmp[MAXLOGNAME];
|
||||
|
||||
if ((error = suser(p)))
|
||||
if ((error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
error = copyinstr((caddr_t) uap->namebuf, (caddr_t) logintmp,
|
||||
sizeof(logintmp), (size_t *)0);
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_resource.c 8.5 (Berkeley) 1/21/94
|
||||
* $Id: kern_resource.c,v 1.46 1999/04/27 11:16:02 phk Exp $
|
||||
* $Id: kern_resource.c,v 1.47 1999/04/27 12:21:07 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -387,7 +387,7 @@ dosetrlimit(p, which, limp)
|
||||
|
||||
if (limp->rlim_cur > alimp->rlim_max ||
|
||||
limp->rlim_max > alimp->rlim_max)
|
||||
if ((error = suser(p)))
|
||||
if ((error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
if (limp->rlim_cur > limp->rlim_max)
|
||||
limp->rlim_cur = limp->rlim_max;
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_sig.c 8.7 (Berkeley) 4/18/94
|
||||
* $Id: kern_sig.c,v 1.53 1999/01/10 01:58:24 eivind Exp $
|
||||
* $Id: kern_sig.c,v 1.54 1999/01/26 02:38:10 julian Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -79,12 +79,12 @@ SYSCTL_INT(_kern, KERN_LOGSIGEXIT, logsigexit, CTLFLAG_RW, &kern_logsigexit, 0,
|
||||
* Can process p, with pcred pc, send the signal signum to process q?
|
||||
*/
|
||||
#define CANSIGNAL(p, pc, q, signum) \
|
||||
((pc)->pc_ucred->cr_uid == 0 || \
|
||||
(PRISON_CHECK(p, q) && ((pc)->pc_ucred->cr_uid == 0 || \
|
||||
(pc)->p_ruid == (q)->p_cred->p_ruid || \
|
||||
(pc)->pc_ucred->cr_uid == (q)->p_cred->p_ruid || \
|
||||
(pc)->p_ruid == (q)->p_ucred->cr_uid || \
|
||||
(pc)->pc_ucred->cr_uid == (q)->p_ucred->cr_uid || \
|
||||
((signum) == SIGCONT && (q)->p_session == (p)->p_session))
|
||||
((signum) == SIGCONT && (q)->p_session == (p)->p_session)))
|
||||
|
||||
/*
|
||||
* Policy -- Can real uid ruid with ucred uc send a signal to process q?
|
||||
|
@ -37,7 +37,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94
|
||||
* $Id: kern_sysctl.c,v 1.86 1999/03/30 09:00:45 phk Exp $
|
||||
* $Id: kern_sysctl.c,v 1.87 1999/04/27 11:16:05 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -764,7 +764,8 @@ sysctl_root SYSCTL_HANDLER_ARGS
|
||||
/* Most likely only root can write */
|
||||
if (!(oid->oid_kind & CTLFLAG_ANYBODY) &&
|
||||
req->newptr && req->p &&
|
||||
(i = suser(req->p)))
|
||||
(i = suser_xxx(0, req->p,
|
||||
(oid->oid_kind & CTLFLAG_PRISON) ? PRISON_ROOT : 0)))
|
||||
return (i);
|
||||
|
||||
if (!oid->oid_handler)
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)kern_xxx.c 8.2 (Berkeley) 11/14/93
|
||||
* $Id: kern_xxx.c,v 1.28 1998/08/24 08:39:38 dfr Exp $
|
||||
* $Id: kern_xxx.c,v 1.29 1999/04/27 11:16:09 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -85,7 +85,7 @@ osethostname(p, uap)
|
||||
|
||||
name[0] = CTL_KERN;
|
||||
name[1] = KERN_HOSTNAME;
|
||||
if ((error = suser(p)))
|
||||
if ((error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
return (userland_sysctl(p, name, 2, 0, 0, 0,
|
||||
uap->hostname, uap->len, 0));
|
||||
|
@ -28,7 +28,7 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: sys_process.c,v 1.43 1999/03/29 08:29:22 dfr Exp $
|
||||
* $Id: sys_process.c,v 1.44 1999/04/27 11:16:13 phk Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -218,6 +218,8 @@ ptrace(curp, uap)
|
||||
if ((p = pfind(uap->pid)) == NULL)
|
||||
return ESRCH;
|
||||
}
|
||||
if (!PRISON_CHECK(curp, p))
|
||||
return (ESRCH);
|
||||
|
||||
/*
|
||||
* Permissions check
|
||||
|
@ -2,7 +2,7 @@
|
||||
* System call names.
|
||||
*
|
||||
* DO NOT EDIT-- this file is automatically generated.
|
||||
* created from Id: syscalls.master,v 1.57 1999/04/04 21:41:16 dt Exp
|
||||
* created from Id: syscalls.master,v 1.58 1999/04/28 11:28:49 phk Exp
|
||||
*/
|
||||
|
||||
char *syscallnames[] = {
|
||||
@ -344,4 +344,5 @@ char *syscallnames[] = {
|
||||
"utrace", /* 335 = utrace */
|
||||
"sendfile", /* 336 = sendfile */
|
||||
"kldsym", /* 337 = kldsym */
|
||||
"jail", /* 338 = jail */
|
||||
};
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* From: @(#)uipc_usrreq.c 8.3 (Berkeley) 1/4/94
|
||||
* $Id: uipc_usrreq.c,v 1.41 1999/04/11 02:17:47 eivind Exp $
|
||||
* $Id: uipc_usrreq.c,v 1.42 1999/04/12 14:34:52 eivind Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -490,6 +490,7 @@ unp_attach(so)
|
||||
unp_count++;
|
||||
LIST_INIT(&unp->unp_refs);
|
||||
unp->unp_socket = so;
|
||||
unp->unp_rvnode = curproc->p_fd->fd_rdir;
|
||||
LIST_INSERT_HEAD(so->so_type == SOCK_DGRAM ? &unp_dhead
|
||||
: &unp_shead, unp, unp_link);
|
||||
so->so_pcb = (caddr_t)unp;
|
||||
@ -709,6 +710,16 @@ unp_abort(unp)
|
||||
}
|
||||
#endif
|
||||
|
||||
static int
|
||||
prison_unpcb(struct proc *p, struct unpcb *unp)
|
||||
{
|
||||
if (!p->p_prison)
|
||||
return (0);
|
||||
if (p->p_fd->fd_rdir == unp->unp_rvnode)
|
||||
return (0);
|
||||
return (1);
|
||||
}
|
||||
|
||||
static int
|
||||
unp_pcblist SYSCTL_HANDLER_ARGS
|
||||
{
|
||||
@ -754,7 +765,7 @@ unp_pcblist SYSCTL_HANDLER_ARGS
|
||||
|
||||
for (unp = head->lh_first, i = 0; unp && i < n;
|
||||
unp = unp->unp_link.le_next) {
|
||||
if (unp->unp_gencnt <= gencnt)
|
||||
if (unp->unp_gencnt <= gencnt && !prison_unpcb(req->p, unp))
|
||||
unp_list[i++] = unp;
|
||||
}
|
||||
n = i; /* in case we lost some during malloc */
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94
|
||||
* $Id: vfs_syscalls.c,v 1.121 1999/03/23 14:26:40 phk Exp $
|
||||
* $Id: vfs_syscalls.c,v 1.122 1999/04/27 11:16:25 phk Exp $
|
||||
*/
|
||||
|
||||
/* For 4.3 integer FS ID compatibility */
|
||||
@ -132,7 +132,7 @@ mount(p, uap)
|
||||
/*
|
||||
* Silently enforce MNT_NOSUID and MNT_NODEV for non-root users
|
||||
*/
|
||||
if (suser_xxx(p->p_ucred, (u_short *)NULL))
|
||||
if (suser_xxx(p->p_ucred, 0, 0))
|
||||
SCARG(uap, flags) |= MNT_NOSUID | MNT_NODEV;
|
||||
/*
|
||||
* Get vnode to be covered
|
||||
@ -562,6 +562,12 @@ sync(p, uap)
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* XXX PRISON: could be per prison flag */
|
||||
static int prison_quotas;
|
||||
#if 0
|
||||
SYSCTL_INT(_kern_prison, OID_AUTO, quotas, CTLFLAG_RW, &prison_quotas, 0, "");
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Change filesystem quotas.
|
||||
*/
|
||||
@ -588,6 +594,8 @@ quotactl(p, uap)
|
||||
int error;
|
||||
struct nameidata nd;
|
||||
|
||||
if (p->p_prison && !prison_quotas)
|
||||
return (EPERM);
|
||||
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
|
||||
if ((error = namei(&nd)) != 0)
|
||||
return (error);
|
||||
@ -631,7 +639,7 @@ statfs(p, uap)
|
||||
if (error)
|
||||
return (error);
|
||||
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
|
||||
if (suser_xxx(p->p_ucred, (u_short *)NULL)) {
|
||||
if (suser_xxx(p->p_ucred, 0, 0)) {
|
||||
bcopy((caddr_t)sp, (caddr_t)&sb, sizeof(sb));
|
||||
sb.f_fsid.val[0] = sb.f_fsid.val[1] = 0;
|
||||
sp = &sb;
|
||||
@ -671,7 +679,7 @@ fstatfs(p, uap)
|
||||
if (error)
|
||||
return (error);
|
||||
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
|
||||
if (suser_xxx(p->p_ucred, (u_short *)NULL)) {
|
||||
if (suser_xxx(p->p_ucred, 0, 0)) {
|
||||
bcopy((caddr_t)sp, (caddr_t)&sb, sizeof(sb));
|
||||
sb.f_fsid.val[0] = sb.f_fsid.val[1] = 0;
|
||||
sp = &sb;
|
||||
@ -886,7 +894,7 @@ chroot(p, uap)
|
||||
int error;
|
||||
struct nameidata nd;
|
||||
|
||||
error = suser(p);
|
||||
error = suser_xxx(0, p, PRISON_ROOT);
|
||||
if (error)
|
||||
return (error);
|
||||
if (chroot_allow_open_directories == 0 ||
|
||||
@ -1076,7 +1084,15 @@ mknod(p, uap)
|
||||
int whiteout = 0;
|
||||
struct nameidata nd;
|
||||
|
||||
error = suser(p);
|
||||
switch (SCARG(uap, mode) & S_IFMT) {
|
||||
case S_IFCHR:
|
||||
case S_IFBLK:
|
||||
error = suser(p);
|
||||
break;
|
||||
default:
|
||||
error = suser_xxx(0, p, PRISON_ROOT);
|
||||
break;
|
||||
}
|
||||
if (error)
|
||||
return (error);
|
||||
NDINIT(&nd, CREATE, LOCKPARENT, UIO_USERSPACE, SCARG(uap, path), p);
|
||||
@ -2977,7 +2993,7 @@ revoke(p, uap)
|
||||
if ((error = VOP_GETATTR(vp, &vattr, p->p_ucred, p)) != 0)
|
||||
goto out;
|
||||
if (p->p_ucred->cr_uid != vattr.va_uid &&
|
||||
(error = suser(p)))
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
goto out;
|
||||
if (vp->v_usecount > 1 || (vp->v_flag & VALIASED))
|
||||
VOP_REVOKE(vp, REVOKEALL);
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)vfs_syscalls.c 8.13 (Berkeley) 4/15/94
|
||||
* $Id: vfs_syscalls.c,v 1.121 1999/03/23 14:26:40 phk Exp $
|
||||
* $Id: vfs_syscalls.c,v 1.122 1999/04/27 11:16:25 phk Exp $
|
||||
*/
|
||||
|
||||
/* For 4.3 integer FS ID compatibility */
|
||||
@ -132,7 +132,7 @@ mount(p, uap)
|
||||
/*
|
||||
* Silently enforce MNT_NOSUID and MNT_NODEV for non-root users
|
||||
*/
|
||||
if (suser_xxx(p->p_ucred, (u_short *)NULL))
|
||||
if (suser_xxx(p->p_ucred, 0, 0))
|
||||
SCARG(uap, flags) |= MNT_NOSUID | MNT_NODEV;
|
||||
/*
|
||||
* Get vnode to be covered
|
||||
@ -562,6 +562,12 @@ sync(p, uap)
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* XXX PRISON: could be per prison flag */
|
||||
static int prison_quotas;
|
||||
#if 0
|
||||
SYSCTL_INT(_kern_prison, OID_AUTO, quotas, CTLFLAG_RW, &prison_quotas, 0, "");
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Change filesystem quotas.
|
||||
*/
|
||||
@ -588,6 +594,8 @@ quotactl(p, uap)
|
||||
int error;
|
||||
struct nameidata nd;
|
||||
|
||||
if (p->p_prison && !prison_quotas)
|
||||
return (EPERM);
|
||||
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p);
|
||||
if ((error = namei(&nd)) != 0)
|
||||
return (error);
|
||||
@ -631,7 +639,7 @@ statfs(p, uap)
|
||||
if (error)
|
||||
return (error);
|
||||
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
|
||||
if (suser_xxx(p->p_ucred, (u_short *)NULL)) {
|
||||
if (suser_xxx(p->p_ucred, 0, 0)) {
|
||||
bcopy((caddr_t)sp, (caddr_t)&sb, sizeof(sb));
|
||||
sb.f_fsid.val[0] = sb.f_fsid.val[1] = 0;
|
||||
sp = &sb;
|
||||
@ -671,7 +679,7 @@ fstatfs(p, uap)
|
||||
if (error)
|
||||
return (error);
|
||||
sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
|
||||
if (suser_xxx(p->p_ucred, (u_short *)NULL)) {
|
||||
if (suser_xxx(p->p_ucred, 0, 0)) {
|
||||
bcopy((caddr_t)sp, (caddr_t)&sb, sizeof(sb));
|
||||
sb.f_fsid.val[0] = sb.f_fsid.val[1] = 0;
|
||||
sp = &sb;
|
||||
@ -886,7 +894,7 @@ chroot(p, uap)
|
||||
int error;
|
||||
struct nameidata nd;
|
||||
|
||||
error = suser(p);
|
||||
error = suser_xxx(0, p, PRISON_ROOT);
|
||||
if (error)
|
||||
return (error);
|
||||
if (chroot_allow_open_directories == 0 ||
|
||||
@ -1076,7 +1084,15 @@ mknod(p, uap)
|
||||
int whiteout = 0;
|
||||
struct nameidata nd;
|
||||
|
||||
error = suser(p);
|
||||
switch (SCARG(uap, mode) & S_IFMT) {
|
||||
case S_IFCHR:
|
||||
case S_IFBLK:
|
||||
error = suser(p);
|
||||
break;
|
||||
default:
|
||||
error = suser_xxx(0, p, PRISON_ROOT);
|
||||
break;
|
||||
}
|
||||
if (error)
|
||||
return (error);
|
||||
NDINIT(&nd, CREATE, LOCKPARENT, UIO_USERSPACE, SCARG(uap, path), p);
|
||||
@ -2977,7 +2993,7 @@ revoke(p, uap)
|
||||
if ((error = VOP_GETATTR(vp, &vattr, p->p_ucred, p)) != 0)
|
||||
goto out;
|
||||
if (p->p_ucred->cr_uid != vattr.va_uid &&
|
||||
(error = suser(p)))
|
||||
(error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
goto out;
|
||||
if (vp->v_usecount > 1 || (vp->v_flag & VALIASED))
|
||||
VOP_REVOKE(vp, REVOKEALL);
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)vfs_vnops.c 8.2 (Berkeley) 1/21/94
|
||||
* $Id: vfs_vnops.c,v 1.66 1999/04/21 05:56:45 alc Exp $
|
||||
* $Id: vfs_vnops.c,v 1.67 1999/04/27 11:16:27 phk Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -422,7 +422,7 @@ vn_stat(vp, sb, p)
|
||||
sb->st_ctimespec = vap->va_ctime;
|
||||
sb->st_blksize = vap->va_blocksize;
|
||||
sb->st_flags = vap->va_flags;
|
||||
if (suser_xxx(p->p_ucred, (u_short *)NULL))
|
||||
if (suser_xxx(p->p_ucred, 0, 0))
|
||||
sb->st_gen = 0;
|
||||
else
|
||||
sb->st_gen = vap->va_gen;
|
||||
|
@ -23,7 +23,7 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: devfs_vnops.c,v 1.70 1999/02/25 16:06:51 bde Exp $
|
||||
* $Id: devfs_vnops.c,v 1.71 1999/04/27 11:16:31 phk Exp $
|
||||
*/
|
||||
|
||||
|
||||
@ -381,7 +381,7 @@ DBPRINT(("access\n"));
|
||||
* but only use suser_xxx prives as a last resort
|
||||
* (Use of super powers is recorded in ap->a_p->p_acflag)
|
||||
*/
|
||||
if( suser_xxx(cred, &ap->a_p->p_acflag) == 0) /* XXX what if no proc? */
|
||||
if( suser_xxx(cred, ap->a_p, 0) == 0) /* XXX what if no proc? */
|
||||
return 0;
|
||||
return (EACCES);
|
||||
}
|
||||
@ -519,7 +519,7 @@ DBPRINT(("setattr\n"));
|
||||
#endif
|
||||
if (((vap->va_vaflags & VA_UTIMES_NULL) == 0) &&
|
||||
(cred->cr_uid != file_node->uid) &&
|
||||
suser_xxx(cred, &p->p_acflag))
|
||||
suser_xxx(cred, p, 0))
|
||||
return (EPERM);
|
||||
if(VOP_ACCESS(vp, VWRITE, cred, p))
|
||||
return (EACCES);
|
||||
@ -534,7 +534,7 @@ DBPRINT(("setattr\n"));
|
||||
*/
|
||||
if (vap->va_mode != (u_short)VNOVAL) {
|
||||
if ((cred->cr_uid != file_node->uid)
|
||||
&& suser_xxx(cred, &p->p_acflag))
|
||||
&& suser_xxx(cred, p, 0))
|
||||
return (EPERM);
|
||||
/* set drwxwxrwx stuff */
|
||||
file_node->mode &= ~07777;
|
||||
@ -545,7 +545,7 @@ DBPRINT(("setattr\n"));
|
||||
* Change the owner.. must be root to do this.
|
||||
*/
|
||||
if (vap->va_uid != (uid_t)VNOVAL) {
|
||||
if (suser_xxx(cred, &p->p_acflag))
|
||||
if (suser_xxx(cred, p, 0))
|
||||
return (EPERM);
|
||||
file_node->uid = vap->va_uid;
|
||||
}
|
||||
@ -568,7 +568,7 @@ DBPRINT(("setattr\n"));
|
||||
* we can't do it with normal privs,
|
||||
* do we have an ace up our sleeve?
|
||||
*/
|
||||
if( suser_xxx(cred, &p->p_acflag))
|
||||
if( suser_xxx(cred, p, 0))
|
||||
return (EPERM);
|
||||
cando:
|
||||
file_node->gid = vap->va_gid;
|
||||
@ -580,7 +580,7 @@ DBPRINT(("setattr\n"));
|
||||
* flags should be handled some day
|
||||
*/
|
||||
if (vap->va_flags != VNOVAL) {
|
||||
if (error = suser_xxx(cred, &p->p_acflag))
|
||||
if (error = suser_xxx(cred, p, 0))
|
||||
return error;
|
||||
if (cred->cr_uid == 0)
|
||||
;
|
||||
|
@ -37,7 +37,7 @@
|
||||
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
|
||||
*
|
||||
* From:
|
||||
* $Id: procfs.h,v 1.21 1999/01/05 03:53:06 peter Exp $
|
||||
* $Id: procfs.h,v 1.22 1999/04/27 11:16:35 phk Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -92,7 +92,8 @@ struct pfsnode {
|
||||
* Evaluates to 1 if access is allowed.
|
||||
*/
|
||||
#define CHECKIO(p1, p2) \
|
||||
((((p1)->p_cred->pc_ucred->cr_uid == (p2)->p_cred->p_ruid) && \
|
||||
(PRISON_CHECK(p1, p2) && \
|
||||
(((p1)->p_cred->pc_ucred->cr_uid == (p2)->p_cred->p_ruid) && \
|
||||
((p1)->p_cred->p_ruid == (p2)->p_cred->p_ruid) && \
|
||||
((p1)->p_cred->p_svuid == (p2)->p_cred->p_ruid) && \
|
||||
((p2)->p_flag & P_SUGID) == 0) || (suser((p1)) == 0))
|
||||
|
@ -37,12 +37,13 @@
|
||||
* @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
|
||||
*
|
||||
* From:
|
||||
* $Id: procfs_status.c,v 1.11 1998/07/11 07:45:45 bde Exp $
|
||||
* $Id: procfs_status.c,v 1.12 1999/01/05 03:53:06 peter Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/jail.h>
|
||||
#include <sys/vnode.h>
|
||||
#include <sys/tty.h>
|
||||
#include <sys/resourcevar.h>
|
||||
@ -134,6 +135,11 @@ procfs_dostatus(curp, p, pfs, uio)
|
||||
|
||||
for (i = 0; i < cr->cr_ngroups; i++)
|
||||
ps += sprintf(ps, ",%lu", (u_long)cr->cr_groups[i]);
|
||||
|
||||
if (p->p_prison)
|
||||
ps += sprintf(ps, " %s", p->p_prison->pr_host);
|
||||
else
|
||||
ps += sprintf(ps, " -");
|
||||
ps += sprintf(ps, "\n");
|
||||
|
||||
xlen = ps - psbuf;
|
||||
|
@ -36,7 +36,7 @@
|
||||
*
|
||||
* @(#)procfs_vnops.c 8.18 (Berkeley) 5/21/95
|
||||
*
|
||||
* $Id: procfs_vnops.c,v 1.64 1999/01/27 22:42:07 dillon Exp $
|
||||
* $Id: procfs_vnops.c,v 1.65 1999/04/27 11:16:39 phk Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -134,6 +134,8 @@ procfs_open(ap)
|
||||
p2 = PFIND(pfs->pfs_pid);
|
||||
if (p2 == NULL)
|
||||
return (ENOENT);
|
||||
if (!PRISON_CHECK(ap->a_p, p2))
|
||||
return (ENOENT);
|
||||
|
||||
switch (pfs->pfs_type) {
|
||||
case Pmem:
|
||||
@ -835,6 +837,8 @@ procfs_readdir(ap)
|
||||
p = PFIND(pfs->pfs_pid);
|
||||
if (p == NULL)
|
||||
break;
|
||||
if (!PRISON_CHECK(curproc, p))
|
||||
break;
|
||||
|
||||
for (pt = &proc_targets[i];
|
||||
uio->uio_resid >= UIO_MX && i < nproc_targets; pt++, i++) {
|
||||
@ -893,7 +897,14 @@ procfs_readdir(ap)
|
||||
|
||||
default:
|
||||
while (pcnt < i) {
|
||||
p = p->p_list.le_next;
|
||||
if (!p)
|
||||
goto done;
|
||||
if (!PRISON_CHECK(curproc, p))
|
||||
continue;
|
||||
pcnt++;
|
||||
}
|
||||
while (!PRISON_CHECK(curproc, p)) {
|
||||
p = p->p_list.le_next;
|
||||
if (!p)
|
||||
goto done;
|
||||
|
@ -1,4 +1,4 @@
|
||||
/* $Id: msdosfs_vnops.c,v 1.81 1999/01/27 22:42:09 dillon Exp $ */
|
||||
/* $Id: msdosfs_vnops.c,v 1.82 1999/04/27 11:16:51 phk Exp $ */
|
||||
/* $NetBSD: msdosfs_vnops.c,v 1.68 1998/02/10 14:10:04 mrg Exp $ */
|
||||
|
||||
/*-
|
||||
@ -431,7 +431,7 @@ msdosfs_setattr(ap)
|
||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
||||
return (EROFS);
|
||||
if (cred->cr_uid != pmp->pm_uid &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)))
|
||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)))
|
||||
return (error);
|
||||
/*
|
||||
* We are very inconsistent about handling unsupported
|
||||
@ -472,7 +472,7 @@ msdosfs_setattr(ap)
|
||||
gid = pmp->pm_gid;
|
||||
if ((cred->cr_uid != pmp->pm_uid || uid != pmp->pm_uid ||
|
||||
(gid != pmp->pm_gid && !groupmember(gid, cred))) &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)))
|
||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)))
|
||||
return error;
|
||||
if (uid != pmp->pm_uid || gid != pmp->pm_gid)
|
||||
return EINVAL;
|
||||
@ -504,7 +504,7 @@ msdosfs_setattr(ap)
|
||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
||||
return (EROFS);
|
||||
if (cred->cr_uid != pmp->pm_uid &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)) &&
|
||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)) &&
|
||||
((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
|
||||
(error = VOP_ACCESS(ap->a_vp, VWRITE, cred, ap->a_p))))
|
||||
return (error);
|
||||
@ -527,7 +527,7 @@ msdosfs_setattr(ap)
|
||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
||||
return (EROFS);
|
||||
if (cred->cr_uid != pmp->pm_uid &&
|
||||
(error = suser_xxx(cred, &ap->a_p->p_acflag)))
|
||||
(error = suser_xxx(cred, ap->a_p, PRISON_ROOT)))
|
||||
return (error);
|
||||
if (vp->v_type != VDIR) {
|
||||
/* We ignore the read and execute bits. */
|
||||
|
@ -37,7 +37,7 @@
|
||||
*
|
||||
* @(#)bpf.c 8.2 (Berkeley) 3/28/94
|
||||
*
|
||||
* $Id: bpf.c,v 1.47 1999/01/27 22:42:13 dillon Exp $
|
||||
* $Id: bpf.c,v 1.48 1999/04/28 01:18:13 msmith Exp $
|
||||
*/
|
||||
|
||||
#include "bpfilter.h"
|
||||
@ -346,6 +346,9 @@ bpfopen(dev, flags, fmt, p)
|
||||
{
|
||||
register struct bpf_d *d;
|
||||
|
||||
if (p->p_prison)
|
||||
return (EPERM);
|
||||
|
||||
if (minor(dev) >= NBPFILTER)
|
||||
return (ENXIO);
|
||||
/*
|
||||
@ -1014,12 +1017,12 @@ bpfpoll(dev, events, p)
|
||||
d = &bpf_dtab[minor(dev)];
|
||||
|
||||
s = splimp();
|
||||
if (events & (POLLIN | POLLRDNORM))
|
||||
if (events & (POLLIN | POLLRDNORM)) {
|
||||
if (d->bd_hlen != 0 || (d->bd_immediate && d->bd_slen != 0))
|
||||
revents |= events & (POLLIN | POLLRDNORM);
|
||||
else
|
||||
selrecord(p, &d->bd_sel);
|
||||
|
||||
}
|
||||
splx(s);
|
||||
return (revents);
|
||||
}
|
||||
|
29
sys/net/if.c
29
sys/net/if.c
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)if.c 8.3 (Berkeley) 1/4/94
|
||||
* $Id: if.c,v 1.68 1999/04/26 09:02:40 peter Exp $
|
||||
* $Id: if.c,v 1.69 1999/04/27 11:16:56 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -857,7 +857,7 @@ ifconf(cmd, data)
|
||||
ifrp = ifc->ifc_req;
|
||||
for (; space > sizeof (ifr) && ifp; ifp = ifp->if_link.tqe_next) {
|
||||
char workbuf[64];
|
||||
int ifnlen;
|
||||
int ifnlen, addrs;
|
||||
|
||||
ifnlen = snprintf(workbuf, sizeof(workbuf),
|
||||
"%s%d", ifp->if_name, ifp->if_unit);
|
||||
@ -867,17 +867,14 @@ ifconf(cmd, data)
|
||||
strcpy(ifr.ifr_name, workbuf);
|
||||
}
|
||||
|
||||
if ((ifa = ifp->if_addrhead.tqh_first) == 0) {
|
||||
bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
|
||||
error = copyout((caddr_t)&ifr, (caddr_t)ifrp,
|
||||
sizeof (ifr));
|
||||
if (error)
|
||||
break;
|
||||
space -= sizeof (ifr), ifrp++;
|
||||
} else
|
||||
for ( ; space > sizeof (ifr) && ifa;
|
||||
ifa = ifa->ifa_link.tqe_next) {
|
||||
addrs = 0;
|
||||
ifa = ifp->if_addrhead.tqh_first;
|
||||
for ( ; space > sizeof (ifr) && ifa;
|
||||
ifa = ifa->ifa_link.tqe_next) {
|
||||
register struct sockaddr *sa = ifa->ifa_addr;
|
||||
if (curproc->p_prison && prison_if(curproc, sa))
|
||||
continue;
|
||||
addrs++;
|
||||
#ifdef COMPAT_43
|
||||
if (cmd == OSIOCGIFCONF) {
|
||||
struct osockaddr *osa =
|
||||
@ -910,6 +907,14 @@ ifconf(cmd, data)
|
||||
break;
|
||||
space -= sizeof (ifr);
|
||||
}
|
||||
if (!addrs) {
|
||||
bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr));
|
||||
error = copyout((caddr_t)&ifr, (caddr_t)ifrp,
|
||||
sizeof (ifr));
|
||||
if (error)
|
||||
break;
|
||||
space -= sizeof (ifr), ifrp++;
|
||||
}
|
||||
}
|
||||
ifc->ifc_len -= space;
|
||||
return (error);
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)if.h 8.1 (Berkeley) 6/10/93
|
||||
* $Id: if.h,v 1.49 1998/03/21 13:36:20 peter Exp $
|
||||
* $Id: if.h,v 1.50 1999/02/19 13:41:35 phk Exp $
|
||||
*/
|
||||
|
||||
#ifndef _NET_IF_H_
|
||||
@ -221,6 +221,7 @@ MALLOC_DECLARE(M_IFMADDR);
|
||||
|
||||
/* XXX - this should go away soon */
|
||||
#ifdef KERNEL
|
||||
int prison_if __P((struct proc *p, struct sockaddr *sa));
|
||||
#include <net/if_var.h>
|
||||
#endif
|
||||
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)rtsock.c 8.5 (Berkeley) 11/2/94
|
||||
* $Id: rtsock.c,v 1.37 1997/10/31 08:53:13 davidg Exp $
|
||||
* $Id: rtsock.c,v 1.38 1999/01/27 22:42:14 dillon Exp $
|
||||
*/
|
||||
|
||||
|
||||
@ -911,6 +911,8 @@ sysctl_iflist(af, w)
|
||||
while ((ifa = ifa->ifa_link.tqe_next) != 0) {
|
||||
if (af && af != ifa->ifa_addr->sa_family)
|
||||
continue;
|
||||
if (curproc->p_prison && prison_if(curproc, ifa->ifa_addr))
|
||||
continue;
|
||||
ifaaddr = ifa->ifa_addr;
|
||||
netmask = ifa->ifa_netmask;
|
||||
brdaddr = ifa->ifa_dstaddr;
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)in.h 8.3 (Berkeley) 1/3/94
|
||||
* $Id: in.h,v 1.38 1998/12/14 18:09:13 luigi Exp $
|
||||
* $Id: in.h,v 1.39 1999/04/20 13:32:04 peter Exp $
|
||||
*/
|
||||
|
||||
#ifndef _NETINET_IN_H_
|
||||
@ -433,6 +433,9 @@ int in_cksum __P((struct mbuf *, int));
|
||||
int in_localaddr __P((struct in_addr));
|
||||
char *inet_ntoa __P((struct in_addr)); /* in libkern */
|
||||
|
||||
int prison_ip __P((struct proc *p, int flag, u_int32_t *ip));
|
||||
void prison_remote_ip __P((struct proc *p, int flag, u_int32_t *ip));
|
||||
|
||||
#endif /* KERNEL */
|
||||
|
||||
#endif
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)in_pcb.c 8.4 (Berkeley) 5/24/95
|
||||
* $Id: in_pcb.c,v 1.47 1999/01/27 22:42:24 dillon Exp $
|
||||
* $Id: in_pcb.c,v 1.48 1999/04/27 11:17:31 phk Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -42,6 +42,7 @@
|
||||
#include <sys/socket.h>
|
||||
#include <sys/socketvar.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/jail.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/sysctl.h>
|
||||
|
||||
@ -154,7 +155,7 @@ in_pcbbind(inp, nam, p)
|
||||
struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
|
||||
u_short lport = 0;
|
||||
int wild = 0, reuseport = (so->so_options & SO_REUSEPORT);
|
||||
int error;
|
||||
int error, prison = 0;
|
||||
|
||||
if (TAILQ_EMPTY(&in_ifaddrhead)) /* XXX broken! */
|
||||
return (EADDRNOTAVAIL);
|
||||
@ -174,6 +175,8 @@ in_pcbbind(inp, nam, p)
|
||||
if (sin->sin_family != AF_INET)
|
||||
return (EAFNOSUPPORT);
|
||||
#endif
|
||||
if (prison_ip(p, 0, &sin->sin_addr.s_addr))
|
||||
return(EINVAL);
|
||||
lport = sin->sin_port;
|
||||
if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr))) {
|
||||
/*
|
||||
@ -195,12 +198,15 @@ in_pcbbind(inp, nam, p)
|
||||
|
||||
/* GROSS */
|
||||
if (ntohs(lport) < IPPORT_RESERVED && p &&
|
||||
suser(p))
|
||||
suser_xxx(0, p, PRISON_ROOT))
|
||||
return (EACCES);
|
||||
if (p && p->p_prison)
|
||||
prison = 1;
|
||||
if (so->so_uid &&
|
||||
!IN_MULTICAST(ntohl(sin->sin_addr.s_addr))) {
|
||||
t = in_pcblookup_local(inp->inp_pcbinfo,
|
||||
sin->sin_addr, lport, INPLOOKUP_WILDCARD);
|
||||
sin->sin_addr, lport,
|
||||
prison ? 0 : INPLOOKUP_WILDCARD);
|
||||
if (t &&
|
||||
(ntohl(sin->sin_addr.s_addr) != INADDR_ANY ||
|
||||
ntohl(t->inp_laddr.s_addr) != INADDR_ANY ||
|
||||
@ -210,7 +216,7 @@ in_pcbbind(inp, nam, p)
|
||||
return (EADDRINUSE);
|
||||
}
|
||||
t = in_pcblookup_local(pcbinfo, sin->sin_addr,
|
||||
lport, wild);
|
||||
lport, prison ? 0 : wild);
|
||||
if (t && (reuseport & t->inp_socket->so_options) == 0)
|
||||
return (EADDRINUSE);
|
||||
}
|
||||
@ -220,6 +226,8 @@ in_pcbbind(inp, nam, p)
|
||||
ushort first, last;
|
||||
int count;
|
||||
|
||||
if (prison_ip(p, 0, &inp->inp_laddr.s_addr ))
|
||||
return (EINVAL);
|
||||
inp->inp_flags |= INP_ANONPORT;
|
||||
|
||||
if (inp->inp_flags & INP_HIGHPORT) {
|
||||
@ -227,7 +235,7 @@ in_pcbbind(inp, nam, p)
|
||||
last = ipport_hilastauto;
|
||||
lastport = &pcbinfo->lasthi;
|
||||
} else if (inp->inp_flags & INP_LOWPORT) {
|
||||
if (p && (error = suser(p)))
|
||||
if (p && (error = suser_xxx(0, p, PRISON_ROOT)))
|
||||
return error;
|
||||
first = ipport_lowfirstauto; /* 1023 */
|
||||
last = ipport_lowlastauto; /* 600 */
|
||||
@ -895,3 +903,13 @@ in_pcbremlists(inp)
|
||||
LIST_REMOVE(inp, inp_list);
|
||||
inp->inp_pcbinfo->ipi_count--;
|
||||
}
|
||||
|
||||
int
|
||||
prison_xinpcb(struct proc *p, struct inpcb *inp)
|
||||
{
|
||||
if (!p->p_prison)
|
||||
return (0);
|
||||
if (ntohl(inp->inp_laddr.s_addr) == p->p_prison->pr_ip)
|
||||
return (0);
|
||||
return (1);
|
||||
}
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)in_pcb.h 8.1 (Berkeley) 6/10/93
|
||||
* $Id: in_pcb.h,v 1.25 1998/03/28 10:18:22 bde Exp $
|
||||
* $Id: in_pcb.h,v 1.26 1998/05/15 20:11:33 wollman Exp $
|
||||
*/
|
||||
|
||||
#ifndef _NETINET_IN_PCB_H_
|
||||
@ -168,6 +168,7 @@ void in_pcbnotify __P((struct inpcbhead *, struct sockaddr *,
|
||||
void in_pcbrehash __P((struct inpcb *));
|
||||
int in_setpeeraddr __P((struct socket *so, struct sockaddr **nam));
|
||||
int in_setsockaddr __P((struct socket *so, struct sockaddr **nam));
|
||||
int prison_xinpcb __P((struct proc *p, struct inpcb *inp));
|
||||
#endif /* KERNEL */
|
||||
|
||||
#endif /* !_NETINET_IN_PCB_H_ */
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)tcp_subr.c 8.2 (Berkeley) 5/24/95
|
||||
* $Id: tcp_subr.c,v 1.51 1999/02/04 03:02:56 msmith Exp $
|
||||
* $Id: tcp_subr.c,v 1.52 1999/02/04 03:27:43 msmith Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -541,7 +541,7 @@ tcp_pcblist SYSCTL_HANDLER_ARGS
|
||||
s = splnet();
|
||||
for (inp = tcbinfo.listhead->lh_first, i = 0; inp && i < n;
|
||||
inp = inp->inp_list.le_next) {
|
||||
if (inp->inp_gencnt <= gencnt)
|
||||
if (inp->inp_gencnt <= gencnt && !prison_xinpcb(req->p, inp))
|
||||
inp_list[i++] = inp;
|
||||
}
|
||||
splx(s);
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)tcp_subr.c 8.2 (Berkeley) 5/24/95
|
||||
* $Id: tcp_subr.c,v 1.51 1999/02/04 03:02:56 msmith Exp $
|
||||
* $Id: tcp_subr.c,v 1.52 1999/02/04 03:27:43 msmith Exp $
|
||||
*/
|
||||
|
||||
#include "opt_compat.h"
|
||||
@ -541,7 +541,7 @@ tcp_pcblist SYSCTL_HANDLER_ARGS
|
||||
s = splnet();
|
||||
for (inp = tcbinfo.listhead->lh_first, i = 0; inp && i < n;
|
||||
inp = inp->inp_list.le_next) {
|
||||
if (inp->inp_gencnt <= gencnt)
|
||||
if (inp->inp_gencnt <= gencnt && !prison_xinpcb(req->p, inp))
|
||||
inp_list[i++] = inp;
|
||||
}
|
||||
splx(s);
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* From: @(#)tcp_usrreq.c 8.2 (Berkeley) 1/3/94
|
||||
* $Id: tcp_usrreq.c,v 1.40 1999/01/20 17:31:59 fenner Exp $
|
||||
* $Id: tcp_usrreq.c,v 1.41 1999/04/24 18:25:35 ache Exp $
|
||||
*/
|
||||
|
||||
#include "opt_tcpdebug.h"
|
||||
@ -239,6 +239,8 @@ tcp_usr_connect(struct socket *so, struct sockaddr *nam, struct proc *p)
|
||||
goto out;
|
||||
}
|
||||
|
||||
prison_remote_ip(p, 0, &sinp->sin_addr.s_addr);
|
||||
|
||||
if ((error = tcp_connect(tp, nam, p)) != 0)
|
||||
goto out;
|
||||
error = tcp_output(tp);
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95
|
||||
* $Id: udp_usrreq.c,v 1.48 1998/08/24 07:47:39 dfr Exp $
|
||||
* $Id: udp_usrreq.c,v 1.49 1998/12/03 20:23:21 dillon Exp $
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
@ -410,7 +410,7 @@ udp_pcblist SYSCTL_HANDLER_ARGS
|
||||
s = splnet();
|
||||
for (inp = udbinfo.listhead->lh_first, i = 0; inp && i < n;
|
||||
inp = inp->inp_list.le_next) {
|
||||
if (inp->inp_gencnt <= gencnt)
|
||||
if (inp->inp_gencnt <= gencnt && !prison_xinpcb(req->p, inp))
|
||||
inp_list[i++] = inp;
|
||||
}
|
||||
splx(s);
|
||||
@ -462,6 +462,7 @@ udp_output(inp, m, addr, control, p)
|
||||
register struct udpiphdr *ui;
|
||||
register int len = m->m_pkthdr.len;
|
||||
struct in_addr laddr;
|
||||
struct sockaddr_in *sin;
|
||||
int s = 0, error = 0;
|
||||
|
||||
if (control)
|
||||
@ -473,6 +474,8 @@ udp_output(inp, m, addr, control, p)
|
||||
}
|
||||
|
||||
if (addr) {
|
||||
sin = (struct sockaddr_in *)addr;
|
||||
prison_remote_ip(p, 0, &sin->sin_addr.s_addr);
|
||||
laddr = inp->inp_laddr;
|
||||
if (inp->inp_faddr.s_addr != INADDR_ANY) {
|
||||
error = EISCONN;
|
||||
@ -614,6 +617,7 @@ udp_connect(struct socket *so, struct sockaddr *nam, struct proc *p)
|
||||
{
|
||||
struct inpcb *inp;
|
||||
int s, error;
|
||||
struct sockaddr_in *sin;
|
||||
|
||||
inp = sotoinpcb(so);
|
||||
if (inp == 0)
|
||||
@ -621,6 +625,8 @@ udp_connect(struct socket *so, struct sockaddr *nam, struct proc *p)
|
||||
if (inp->inp_faddr.s_addr != INADDR_ANY)
|
||||
return EISCONN;
|
||||
s = splnet();
|
||||
sin = (struct sockaddr_in *)nam;
|
||||
prison_remote_ip(p, 0, &sin->sin_addr.s_addr);
|
||||
error = in_pcbconnect(inp, nam, p);
|
||||
splx(s);
|
||||
if (error == 0)
|
||||
|
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)nfs_serv.c 8.8 (Berkeley) 7/31/95
|
||||
* $Id: nfs_serv.c,v 1.73 1999/02/16 10:49:53 dfr Exp $
|
||||
* $Id: nfs_serv.c,v 1.74 1999/04/27 11:17:49 phk Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -1445,7 +1445,7 @@ nfsrv_create(nfsd, slp, procp, mrq)
|
||||
if (vap->va_type == VCHR && rdev == 0xffffffff)
|
||||
vap->va_type = VFIFO;
|
||||
if (vap->va_type != VFIFO &&
|
||||
(error = suser_xxx(cred, (u_short *)0))) {
|
||||
(error = suser_xxx(cred, 0, 0))) {
|
||||
vrele(nd.ni_startdir);
|
||||
zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
|
||||
VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
|
||||
@ -1642,7 +1642,7 @@ nfsrv_mknod(nfsd, slp, procp, mrq)
|
||||
if (!error)
|
||||
zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
|
||||
} else {
|
||||
if (vtyp != VFIFO && (error = suser_xxx(cred, (u_short *)0))) {
|
||||
if (vtyp != VFIFO && (error = suser_xxx(cred, 0, 0))) {
|
||||
vrele(nd.ni_startdir);
|
||||
zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
|
||||
VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
|
||||
|
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)nfs_serv.c 8.8 (Berkeley) 7/31/95
|
||||
* $Id: nfs_serv.c,v 1.73 1999/02/16 10:49:53 dfr Exp $
|
||||
* $Id: nfs_serv.c,v 1.74 1999/04/27 11:17:49 phk Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -1445,7 +1445,7 @@ nfsrv_create(nfsd, slp, procp, mrq)
|
||||
if (vap->va_type == VCHR && rdev == 0xffffffff)
|
||||
vap->va_type = VFIFO;
|
||||
if (vap->va_type != VFIFO &&
|
||||
(error = suser_xxx(cred, (u_short *)0))) {
|
||||
(error = suser_xxx(cred, 0, 0))) {
|
||||
vrele(nd.ni_startdir);
|
||||
zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
|
||||
VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
|
||||
@ -1642,7 +1642,7 @@ nfsrv_mknod(nfsd, slp, procp, mrq)
|
||||
if (!error)
|
||||
zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
|
||||
} else {
|
||||
if (vtyp != VFIFO && (error = suser_xxx(cred, (u_short *)0))) {
|
||||
if (vtyp != VFIFO && (error = suser_xxx(cred, 0, 0))) {
|
||||
vrele(nd.ni_startdir);
|
||||
zfree(namei_zone, nd.ni_cnd.cn_pnbuf);
|
||||
VOP_ABORTOP(nd.ni_dvp, &nd.ni_cnd);
|
||||
|
41
sys/sys/jail.h
Normal file
41
sys/sys/jail.h
Normal file
@ -0,0 +1,41 @@
|
||||
/*
|
||||
* ----------------------------------------------------------------------------
|
||||
* "THE BEER-WARE LICENSE" (Revision 42):
|
||||
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
|
||||
* can do whatever you want with this stuff. If we meet some day, and you think
|
||||
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
|
||||
* ----------------------------------------------------------------------------
|
||||
*
|
||||
* $Id: loran.c,v 1.15 1999/04/11 03:06:06 eivind Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _SYS_JAIL_H_
|
||||
#define _SYS_JAIL_H_
|
||||
|
||||
struct jail {
|
||||
char *path;
|
||||
char *hostname;
|
||||
u_int32_t ip_number;
|
||||
};
|
||||
|
||||
#ifdef KERNEL
|
||||
|
||||
#ifdef MALLOC_DECLARE
|
||||
MALLOC_DECLARE(M_PRISON);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This structure describes a prison. It is pointed to by all struct
|
||||
* proc's of the inmates. pr_ref keeps track of them and is used to
|
||||
* delete the struture when the last inmate is dead.
|
||||
*/
|
||||
|
||||
struct prison {
|
||||
int pr_ref;
|
||||
char pr_host[MAXHOSTNAMELEN];
|
||||
u_int32_t pr_ip;
|
||||
};
|
||||
|
||||
#endif /* !KERNEL */
|
||||
#endif /* !_SYS_JAIL_H_ */
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)proc.h 8.15 (Berkeley) 5/19/95
|
||||
* $Id: proc.h,v 1.79 1999/04/27 11:18:32 phk Exp $
|
||||
* $Id: proc.h,v 1.80 1999/04/28 01:04:33 luoqi Exp $
|
||||
*/
|
||||
|
||||
#ifndef _SYS_PROC_H_
|
||||
@ -107,6 +107,9 @@ struct pasleep {
|
||||
* which might be addressable only on a processor on which the process
|
||||
* is running.
|
||||
*/
|
||||
|
||||
struct jail;
|
||||
|
||||
struct proc {
|
||||
TAILQ_ENTRY(proc) p_procq; /* run/sleep queue. */
|
||||
LIST_ENTRY(proc) p_list; /* List of all processes. */
|
||||
@ -206,6 +209,7 @@ struct proc {
|
||||
struct sysentvec *p_sysent; /* System call dispatch information. */
|
||||
|
||||
struct rtprio p_rtprio; /* Realtime priority. */
|
||||
struct prison *p_prison;
|
||||
/* End area that is copied on creation. */
|
||||
#define p_endcopy p_addr
|
||||
struct user *p_addr; /* Kernel virtual addr of u-area (PROC ONLY). */
|
||||
@ -268,6 +272,8 @@ struct proc {
|
||||
#define P_NOCLDWAIT 0x400000 /* No zombies if child dies */
|
||||
#define P_DEADLKTREAT 0x800000 /* lock aquisition - deadlock treatment */
|
||||
|
||||
#define P_JAILED 0x1000000 /* Process is in jail */
|
||||
|
||||
/*
|
||||
* MOVE TO ucred.h?
|
||||
*
|
||||
@ -292,6 +298,14 @@ MALLOC_DECLARE(M_SUBPROC);
|
||||
MALLOC_DECLARE(M_ZOMBIE);
|
||||
#endif
|
||||
|
||||
/* flags for suser_xxx() */
|
||||
#define PRISON_ROOT 1
|
||||
|
||||
/* Handy macro to determine of p1 can mangle p2 */
|
||||
|
||||
#define PRISON_CHECK(p1, p2) \
|
||||
((!(p1)->p_prison) || (p1)->p_prison == (p2)->p_prison)
|
||||
|
||||
/*
|
||||
* We use process IDs <= PID_MAX; PID_MAX + 1 must also fit in a pid_t,
|
||||
* as it is used to represent "no process group".
|
||||
@ -376,6 +390,7 @@ void setrunnable __P((struct proc *));
|
||||
void setrunqueue __P((struct proc *));
|
||||
void sleepinit __P((void));
|
||||
int suser __P((struct proc *));
|
||||
int suser_xxx __P((struct ucred *cred, struct proc *proc, int flag));
|
||||
void remrq __P((struct proc *));
|
||||
void cpu_switch __P((struct proc *));
|
||||
void unsleep __P((struct proc *));
|
||||
|
@ -2,7 +2,7 @@
|
||||
* System call hiders.
|
||||
*
|
||||
* DO NOT EDIT-- this file is automatically generated.
|
||||
* created from Id: syscalls.master,v 1.57 1999/04/04 21:41:16 dt Exp
|
||||
* created from Id: syscalls.master,v 1.58 1999/04/28 11:28:49 phk Exp
|
||||
*/
|
||||
|
||||
HIDE_POSIX(fork)
|
||||
@ -251,3 +251,4 @@ HIDE_POSIX(sched_rr_get_interval)
|
||||
HIDE_BSD(utrace)
|
||||
HIDE_BSD(sendfile)
|
||||
HIDE_BSD(kldsym)
|
||||
HIDE_BSD(jail)
|
||||
|
@ -2,7 +2,7 @@
|
||||
* System call numbers.
|
||||
*
|
||||
* DO NOT EDIT-- this file is automatically generated.
|
||||
* created from Id: syscalls.master,v 1.57 1999/04/04 21:41:16 dt Exp
|
||||
* created from Id: syscalls.master,v 1.58 1999/04/28 11:28:49 phk Exp
|
||||
*/
|
||||
|
||||
#define SYS_syscall 0
|
||||
@ -257,4 +257,5 @@
|
||||
#define SYS_utrace 335
|
||||
#define SYS_sendfile 336
|
||||
#define SYS_kldsym 337
|
||||
#define SYS_MAXSYSCALL 338
|
||||
#define SYS_jail 338
|
||||
#define SYS_MAXSYSCALL 339
|
||||
|
@ -1,6 +1,6 @@
|
||||
# FreeBSD system call names.
|
||||
# DO NOT EDIT-- this file is automatically generated.
|
||||
# created from Id: syscalls.master,v 1.57 1999/04/04 21:41:16 dt Exp
|
||||
# created from Id: syscalls.master,v 1.58 1999/04/28 11:28:49 phk Exp
|
||||
MIASM = \
|
||||
syscall.o \
|
||||
exit.o \
|
||||
@ -212,4 +212,5 @@ MIASM = \
|
||||
sched_rr_get_interval.o \
|
||||
utrace.o \
|
||||
sendfile.o \
|
||||
kldsym.o
|
||||
kldsym.o \
|
||||
jail.o
|
||||
|
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)sysctl.h 8.1 (Berkeley) 6/2/93
|
||||
* $Id: sysctl.h,v 1.71 1999/02/16 10:49:55 dfr Exp $
|
||||
* $Id: sysctl.h,v 1.72 1999/02/28 17:38:28 dt Exp $
|
||||
*/
|
||||
|
||||
#ifndef _SYS_SYSCTL_H_
|
||||
@ -79,6 +79,7 @@ struct ctlname {
|
||||
#define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */
|
||||
#define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
|
||||
#define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
|
||||
#define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
|
||||
|
||||
/*
|
||||
* USE THIS instead of a hardwired number from the categories below
|
||||
|
@ -2,7 +2,7 @@
|
||||
* System call prototypes.
|
||||
*
|
||||
* DO NOT EDIT-- this file is automatically generated.
|
||||
* created from Id: syscalls.master,v 1.57 1999/04/04 21:41:16 dt Exp
|
||||
* created from Id: syscalls.master,v 1.58 1999/04/28 11:28:49 phk Exp
|
||||
*/
|
||||
|
||||
#ifndef _SYS_SYSPROTO_H_
|
||||
@ -907,6 +907,9 @@ struct kldsym_args {
|
||||
int cmd; char cmd_[PAD_(int)];
|
||||
void * data; char data_[PAD_(void *)];
|
||||
};
|
||||
struct jail_args {
|
||||
struct jail * jail; char jail_[PAD_(struct jail *)];
|
||||
};
|
||||
int nosys __P((struct proc *, struct nosys_args *));
|
||||
void exit __P((struct proc *, struct rexit_args *)) __dead2;
|
||||
int fork __P((struct proc *, struct fork_args *));
|
||||
@ -1116,6 +1119,7 @@ int sched_rr_get_interval __P((struct proc *, struct sched_rr_get_interval_args
|
||||
int utrace __P((struct proc *, struct utrace_args *));
|
||||
int sendfile __P((struct proc *, struct sendfile_args *));
|
||||
int kldsym __P((struct proc *, struct kldsym_args *));
|
||||
int jail __P((struct proc *, struct jail_args *));
|
||||
|
||||
#ifdef COMPAT_43
|
||||
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)ucred.h 8.4 (Berkeley) 1/9/95
|
||||
* $Id: ucred.h,v 1.10 1999/01/31 10:05:59 bde Exp $
|
||||
* $Id: ucred.h,v 1.11 1999/04/27 11:18:38 phk Exp $
|
||||
*/
|
||||
|
||||
#ifndef _SYS_UCRED_H_
|
||||
@ -41,7 +41,7 @@
|
||||
* Credentials.
|
||||
*
|
||||
* Please do not inspect cr_uid directly to determine superuserness.
|
||||
* Only the suser_xxx() function should be used for this.
|
||||
* Only the suser()/suser_xxx() function should be used for this.
|
||||
*/
|
||||
struct ucred {
|
||||
u_short cr_ref; /* reference count */
|
||||
@ -60,7 +60,6 @@ struct ucred *crcopy __P((struct ucred *cr));
|
||||
struct ucred *crdup __P((struct ucred *cr));
|
||||
void crfree __P((struct ucred *cr));
|
||||
struct ucred *crget __P((void));
|
||||
int suser_xxx __P((struct ucred *cred, u_short *acflag));
|
||||
int groupmember __P((gid_t gid, struct ucred *cred));
|
||||
#endif /* KERNEL */
|
||||
|
||||
|
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)unpcb.h 8.1 (Berkeley) 6/2/93
|
||||
* $Id: unpcb.h,v 1.6 1997/08/16 19:16:16 wollman Exp $
|
||||
* $Id: unpcb.h,v 1.7 1998/05/15 20:11:40 wollman Exp $
|
||||
*/
|
||||
|
||||
#ifndef _SYS_UNPCB_H_
|
||||
@ -71,6 +71,7 @@ struct unpcb {
|
||||
LIST_ENTRY(unpcb) unp_link; /* glue on list of all PCBs */
|
||||
struct socket *unp_socket; /* pointer back to socket */
|
||||
struct vnode *unp_vnode; /* if associated with file */
|
||||
struct vnode *unp_rvnode; /* root vp for creating process */
|
||||
ino_t unp_ino; /* fake inode number */
|
||||
struct unpcb *unp_conn; /* control block of connected socket */
|
||||
struct unp_head unp_refs; /* referencing socket linked list */
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)ufs_vfsops.c 8.8 (Berkeley) 5/20/95
|
||||
* $Id: ufs_vfsops.c,v 1.13 1999/01/28 00:57:56 dillon Exp $
|
||||
* $Id: ufs_vfsops.c,v 1.14 1999/04/27 11:18:43 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_quota.h"
|
||||
@ -115,7 +115,7 @@ ufs_quotactl(mp, cmds, uid, arg, p)
|
||||
break;
|
||||
/* fall through */
|
||||
default:
|
||||
if ((error = suser(p)) != 0)
|
||||
if ((error = suser_xxx(0, p, PRISON_ROOT)) != 0)
|
||||
return (error);
|
||||
}
|
||||
|
||||
|
@ -36,7 +36,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)ufs_vnops.c 8.27 (Berkeley) 5/27/95
|
||||
* $Id: ufs_vnops.c,v 1.111 1999/03/02 05:31:47 imp Exp $
|
||||
* $Id: ufs_vnops.c,v 1.112 1999/04/27 11:18:44 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_quota.h"
|
||||
@ -448,7 +448,7 @@ ufs_setattr(ap)
|
||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
||||
return (EROFS);
|
||||
if (cred->cr_uid != ip->i_uid &&
|
||||
(error = suser_xxx(cred, &p->p_acflag)))
|
||||
(error = suser_xxx(cred, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
if (cred->cr_uid == 0) {
|
||||
if ((ip->i_flags
|
||||
@ -504,7 +504,7 @@ ufs_setattr(ap)
|
||||
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
||||
return (EROFS);
|
||||
if (cred->cr_uid != ip->i_uid &&
|
||||
(error = suser_xxx(cred, &p->p_acflag)) &&
|
||||
(error = suser_xxx(cred, p, PRISON_ROOT)) &&
|
||||
((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
|
||||
(error = VOP_ACCESS(vp, VWRITE, cred, p))))
|
||||
return (error);
|
||||
@ -546,7 +546,7 @@ ufs_chmod(vp, mode, cred, p)
|
||||
int error;
|
||||
|
||||
if (cred->cr_uid != ip->i_uid) {
|
||||
error = suser_xxx(cred, &p->p_acflag);
|
||||
error = suser_xxx(cred, p, PRISON_ROOT);
|
||||
if (error)
|
||||
return (error);
|
||||
}
|
||||
@ -594,7 +594,7 @@ ufs_chown(vp, uid, gid, cred, p)
|
||||
*/
|
||||
if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
|
||||
(gid != ip->i_gid && !groupmember((gid_t)gid, cred))) &&
|
||||
(error = suser_xxx(cred, &p->p_acflag)))
|
||||
(error = suser_xxx(cred, p, PRISON_ROOT)))
|
||||
return (error);
|
||||
ogid = ip->i_gid;
|
||||
ouid = ip->i_uid;
|
||||
@ -2166,7 +2166,7 @@ ufs_makeinode(mode, dvp, vpp, cnp)
|
||||
if (DOINGSOFTDEP(tvp))
|
||||
softdep_increase_linkcnt(ip);
|
||||
if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
|
||||
suser_xxx(cnp->cn_cred, NULL))
|
||||
suser_xxx(cnp->cn_cred, 0, 0))
|
||||
ip->i_mode &= ~ISGID;
|
||||
|
||||
if (cnp->cn_flags & ISWHITEOUT)
|
||||
|
@ -1,5 +1,5 @@
|
||||
# From: @(#)Makefile 5.20 (Berkeley) 6/12/93
|
||||
# $Id: Makefile,v 1.151 1999/04/07 04:12:02 msmith Exp $
|
||||
# $Id: Makefile,v 1.152 1999/04/28 08:00:50 obrien Exp $
|
||||
|
||||
# XXX MISSING: mkproto
|
||||
SUBDIR= IPXrouted \
|
||||
@ -31,6 +31,7 @@ SUBDIR= IPXrouted \
|
||||
ipresend \
|
||||
ipsend \
|
||||
iptest \
|
||||
jail \
|
||||
kbdcontrol \
|
||||
kbdmap \
|
||||
kernbb \
|
||||
|
4
usr.sbin/jail/Makefile
Normal file
4
usr.sbin/jail/Makefile
Normal file
@ -0,0 +1,4 @@
|
||||
PROG= jail
|
||||
MAN8= jail.8
|
||||
|
||||
.include <bsd.prog.mk>
|
32
usr.sbin/jail/jail.8
Normal file
32
usr.sbin/jail/jail.8
Normal file
@ -0,0 +1,32 @@
|
||||
.Dd April 28, 1999
|
||||
.Dt JAIL 8
|
||||
.Os FreeBSD 4.0
|
||||
.Sh NAME
|
||||
.Nm jail
|
||||
.Nd imprison process and decendants.
|
||||
.Sh SYNOPSIS
|
||||
.Nm jail
|
||||
.Ar path
|
||||
.Ar hostname
|
||||
.Ar ip-number
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Nm
|
||||
command imprisons a process and all future decendants.
|
||||
.Pp
|
||||
Please see the
|
||||
.Xr jail 2
|
||||
Manual page for further details.
|
||||
.Sh SEE ALSO
|
||||
.Xr chroot 2 ,
|
||||
.Xr jail 2
|
||||
.Sh HISTORY
|
||||
The
|
||||
.Fn jail
|
||||
function call appeared in
|
||||
.Fx 4.0 .
|
||||
.Pp
|
||||
The jail feature was written by Poul-Henning Kamp for
|
||||
R&D Associates
|
||||
.Dq Li http://www.rndassociates.com/
|
||||
who contributed it to FreeBSD.
|
32
usr.sbin/jail/jail.c
Normal file
32
usr.sbin/jail/jail.c
Normal file
@ -0,0 +1,32 @@
|
||||
#include <stdio.h>
|
||||
#include <err.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/jail.h>
|
||||
#include <netinet/in.h>
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
struct jail j;
|
||||
int i;
|
||||
struct in_addr in;
|
||||
|
||||
if (argc < 5)
|
||||
errx(1, "Usage: %s path hostname ip command ...\n", argv[0]);
|
||||
i = chdir(argv[1]);
|
||||
if (i)
|
||||
err(1, "chdir %s", argv[1]);
|
||||
j.path = argv[1];
|
||||
j.hostname = argv[2];
|
||||
i = inet_aton(argv[3], &in);
|
||||
if (!i)
|
||||
errx(1, "Couldn't make sense if ip number\n");
|
||||
j.ip_number = in.s_addr;
|
||||
i = jail(&j);
|
||||
if (i)
|
||||
err(1, "Imprisonment failed");
|
||||
i = execv(argv[4], argv + 4);
|
||||
if (i)
|
||||
err(1, "execv(%s)", argv[4]);
|
||||
exit (0);
|
||||
}
|
Loading…
Reference in New Issue
Block a user