Home | History | Annotate | Download | only in common
      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include "libproc.h"
     30 #include <alloca.h>
     31 #include <string.h>
     32 
     33 /*
     34  * Convenience wrapper to set the cred attributes of a victim process
     35  * to a set of new values. Caller must supply a prochandle and a
     36  * fully populated prcred structure.
     37  */
     38 int
     39 Psetcred(struct ps_prochandle *Pr, const prcred_t *credp)
     40 {
     41 	int ngrp;
     42 	int ctlsize;
     43 	struct {
     44 		long cmd;
     45 		prcred_t cred;
     46 	} *ctlp;
     47 
     48 	if (Pr == NULL || credp == NULL)
     49 		return (-1);
     50 
     51 	ngrp = credp->pr_ngroups;
     52 	ctlsize = sizeof (prcred_t) + (ngrp - 1) * sizeof (gid_t);
     53 	ctlp = alloca(ctlsize + sizeof (long));
     54 
     55 	ctlp->cmd = PCSCREDX;
     56 	(void) memcpy(&ctlp->cred, credp, ctlsize);
     57 
     58 	if (write(Pctlfd(Pr), ctlp, sizeof (long) + ctlsize) < 0)
     59 		return (-1);
     60 
     61 	return (0);
     62 }
     63 
     64 /*
     65  * Convenience wrapper to set the zoneid attribute of a victim process to a new
     66  * value (only to and from GLOBAL_ZONEID makes sense).  Caller must supply a
     67  * prochandle and a valid zoneid.
     68  */
     69 int
     70 Psetzoneid(struct ps_prochandle *Pr, zoneid_t zoneid)
     71 {
     72 	struct {
     73 		long cmd;
     74 		long zoneid;
     75 	} ctl;
     76 
     77 	if (Pr == NULL)
     78 		return (-1);
     79 
     80 	ctl.zoneid = zoneid;
     81 	ctl.cmd = PCSZONE;
     82 
     83 	if (write(Pctlfd(Pr), &ctl, sizeof (ctl)) < 0)
     84 		return (-1);
     85 	return (0);
     86 }
     87