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ppriv(1)							      ppriv(1)

NAME
       ppriv - inspect or modify process privilege sets	and attributes

SYNOPSIS
       /usr/bin/ppriv -e [-D | -N]  [-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:

       -D	Turns on privilege debugging for the processes or command sup-
		plied.

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

       -l	Lists all currently defined privileges on stdout.

       -N	Turns off privilege debugging for  the	processes  or  command
		supplied.

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

		AEILP		Indicates one or more letters indicating which
				privilege sets to change. These	are  case  in-
				sensitive,  for	 example,  either a or A indi-
				cates all privilege sets.

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

		privsetspec	Indicates  a  comma-separated  privilege   set
				specification (priv1,priv2, and	so on),	as de-
				scribed	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 indi-
		vidual set or any number of additions and removals.  That  is,
		assignment  and	 addition  or removal for one set are mutually
		exclusive.

       -S	Short. Reports the shortest possible output strings for	 sets.
		The default is portable	output.	See priv_str_to_set(3C).

       -v	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
       P=E=I.

       ppriv can also be used to remove	privileges from	processes or to	convey
       privileges to other processes. In order to control a process,  the  ef-
       fective	set of the ppriv utility must be a super set of	the controlled
       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 utility's effective
       set.  If	 the  controlled processes have	any uid	with the value 0, more
       restrictions may	exist. See privileges(5).

       Example 1: Obtaining the	Process	Privileges of the Current Shell

       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  Ef-
       fective 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

       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
       /etc/name_to_sysnum.

       Example 4: Listing the Privileges Available in the Current Zone

       This  example  lists  the privileges available in the current zone (see
       zones(5)). When run in the global  zone,	 all  defined  privileges  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:

       0	       Successful operation.

       non-zero	       An error	has occurred.

       /proc/*		       Process files

       /etc/name_to_sysnum     system call name	to number mapping

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE	TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |See below.		   |
       +-----------------------------+-----------------------------+

       The invocation is Evolving. The output is Unstable.

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

				  15 Mar 2005			      ppriv(1)

NAME | SYNOPSIS

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