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PPRIV(1)							      PPRIV(1)

       ppriv - inspect or modify process privilege sets and attributes

       /usr/bin/ppriv -e [-D | -N] [-M] [-s spec] command [arg]...

       /usr/bin/ppriv [-v] [-S] [-D | -N] [-s spec]
	    [pid | core]...

       /usr/bin/ppriv -l [-v] [privilege-specification]...

       The  first  invocation  of the ppriv command runs the command specified
       with the privilege sets and flags modified according to	the  arguments
       on the command line.

       The  second  invocation examines or changes the privilege state of run‐
       ning process and core files.

       The third invocation lists the privileges defined and information about
       specified privileges or privileges set specifications.

       The following options are supported:

		  Turns	 on  privilege	debugging for the processes or command

		  Interprets the remainder of the arguments as a command  line
		  and	runs   the   command  line  with  specified  privilege
		  attributes and sets.

		  Lists all currently defined privileges on stdout.

		  When a system is configured with  Trusted  Extensions,  this
		  option  turns on the NET_MAC_AWARE and NET_MAC_AWARE_INHERIT
		  process attributes.

		  A process with these attributes and the net_mac_aware privi‐
		  lege can communicate with lower-level remote peers.

		  Turns	 off  privilege debugging for the processes or command

       -s spec
		  Modifies a process's privilege sets  according  to  spec,  a
		  specification	 with the format [AEILP][+-=]privsetspec, con‐
		  taining no spaces, where:

				 Indicates  one	 or  more  letters  indicating
				 which	privilege  sets	 to  change. These are
				 case insensitive, for example, either a or  A
				 indicates all privilege sets.

				 Indicates a modifier to respectively add (+),
				 remove (-), or assign (=) the	listed	privi‐
				 leges to the specified set(s) in privsetspec.

				 Indicates  a  comma-separated	privilege  set
				 specification (priv1,priv2, and  so  on),  as
				 described in priv_str_to_set(3C).

		  Modifying  the same set with multiple -s options is possible
		  as long as there is either precisely one  assignment	to  an
		  individual set or any number of additions and removals. That
		  is, assignment and addition or removal for one set are mutu‐
		  ally exclusive.

		  Short.  Reports  the	shortest  possible  output strings for
		  sets.	   The	  default    is	   portable    output.	   See

		  Verbose. Reports privilege sets using privilege names.

       The  ppriv  utility  examines  processes	 and  core files and prints or
       changes their privilege sets.

       ppriv can run commands with privilege debugging on or off or with fewer
       privileges than the invoking process.

       When  executing a sub process, the only sets that can be modified are L
       and I. Privileges can only be removed from L and I as ppriv starts with

       ppriv can also be used to remove privileges from processes or to convey
       privileges to other processes. In  order	 to  control  a	 process,  the
       effective  set  of  the	ppriv  utility must be a super set of the con‐
       trolled process's E, I, and P. The utility's limit set must be a	 super
       set  of	the  target's  limit  set. If the target's process uids do not
       match, the {PRIV_PROC_OWNER} privilege must be asserted	in  the	 util‐
       ity's  effective set. If the controlled processes have any uid with the
       value 0, more restrictions might exist. See privileges(5).

       Example 1 Obtaining the Process Privileges of the Current Shell

       The following example obtains the process  privileges  of  the  current

	 example$ ppriv $$
	 387:	-sh
	 flags = <none>
		  E: basic
		  I: basic
		  P: basic
		  L: all

       Example 2 Removing a Privilege From Your Shell's Inheritable and Effec‐
       tive Set

       The following example removes a privilege from your shell's inheritable
       and effective set.

	 example$ ppriv -s EI-proc_session $$

       The  subprocess can still inspect the parent shell but it can no longer
       influence the parent because the parent has more privileges in its Per‐
       mitted set than the ppriv child process:

	 example$ truss -p $$
	 truss: permission denied: 387

	 example$ ppriv $$
	 387:	-sh
	 flags = <none>
		  E: basic,!proc_session
		  I: basic,!proc_session
		  P: basic
		  L: all

       Example 3 Running a Process with Privilege Debugging

       The following example runs a process with privilege debugging:

	 example$ ppriv -e -D cat /etc/shadow
	 cat[418]: missing privilege "file_dac_read" (euid = 21782),
			     needed at ufs_access+0x3c
	 cat: cannot open /etc/shadow

       The privilege debugging error messages are sent to the controlling ter‐
       minal of the current process. The needed at address specification is an
       artifact of the kernel implementation and it can be changed at any time
       after a software update.

       The  system  call  number  can  be  mapped  to  a  system  call	 using

       Example 4 Listing the Privileges Available in the Current Zone

       The  following  example	lists  the privileges available in the current
       zone (see zones(5)). When run in the global zone,  all  defined	privi‐
       leges are listed.

	 example$ ppriv -l zone
	  ... listing of all privileges elided ...

       Example 5 Examining a Privilege Aware Process

       The following example examines a privilege aware process:

	 example$ ppriv -S `pgrep rpcbind`

	 928:	 /usr/sbin/rpcbind
	 flags = PRIV_AWARE
		 E: net_privaddr,proc_fork,sys_nfs
		 I: none
		 P: net_privaddr,proc_fork,sys_nfs
		 L: none

       See setpflags(2) for explanations of the flags.

       The following exit values are returned:

		   Successful operation.

		   An error has occurred.

			      Process files

			      system call name to number mapping

       See attributes(5) for descriptions of the following attributes:

       │Interface Stability │ See below.      │

       The invocation is Committed. The output is Uncommitted.

       gcore(1),   truss(1),   setpflags(2),   priv_str_to_set(3C),   proc(4),
       attributes(5), privileges(5), zones(5)

				 Feb 24, 2008			      PPRIV(1)

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