PSECFLAGS(1) User Commands PSECFLAGS(1)

psecflags - inspect or modify process security flags

/usr/bin/psecflags -s spec -e command [arg]...

/usr/bin/psecflags -s spec [-i idtype] id ...

/usr/bin/psecflags [-F] { pid | core }

/usr/bin/psecflags -l

The first invocation of the psecflags command runs the specified command with the security-flags modified as described by the -s argument.

The second invocation modifies the security-flags of the processes described by idtype and id according as described by the -s argument.

The third invocation describes the security-flags of the specified processes or core files. The effective set is signified by 'E', the inheritable set by 'I', the lower set by 'L', and the upper set by 'U'.

The fourth invocation lists the supported process security-flags, documented in security-flags(7).

The following options are supported:

-e

Interpret the remaining arguments as a command line and run the command with the security-flags specified with the -s flag.

-F

Force. Grab the target process even if another process has control.

-i idtype

This option, together with the id arguments specify one or more processes whose security-flags will be modified. The interpretation of the id arguments is based on idtype. If idtype is omitted the default is pid.

Valid idtype options are:

all

The psecflags command applies to all processes

contract, ctid

The security-flags of any process with a contract ID matching the id arguments are modified.

group, gid

The security-flags of any process with a group ID matching the id arguments are modified.

pid

The security-flags of any process with a process ID matching the id arguments are modified. This is the default.

ppid

The security-flags of any processes whose parent process ID matches the id arguments are modified.

project, projid

The security-flags of any process whose project ID matches the id arguments are modified.

session, sid

The security-flags of any process whose session ID matches the id arguments are modified.

taskid

The security-flags of any process whose task ID matches the id arguments are modified.

user, uid

The security-flags of any process belonging to the users matching the id arguments are modified.

zone, zoneid

The security-flags of any process running in the zones matching the given id arguments are modified.

-l

List all supported process security-flags, described in security-flags(7).

-s specification

Modify the process security-flags according to specification. Specifications take the form of a comma-separated list of flags, optionally preceded by a '-' or '!'. Where '-' and '!' indicate that the given flag should be removed from the specification. The pseudo-flags "all", "none" and "current" are supported, to indicate that all flags, no flags, or the current set of flags (respectively) are to be included.

By default, the inheritable flags are changed. You may optionally specify the set to change using their single-letter identifiers and an equals sign.

For a list of valid security-flags, see psecflags -l.

Example 1 Display the security-flags of the current shell.


example$ psecflags $$
100718:	-sh
	E:	aslr
	I:	aslr
	L:	none
	U:	aslr,forbidnullmap,noexecstack

Example 2 Run a user command with ASLR enabled in addition to any inherited security flags.


example$ psecflags -s current,aslr -e /bin/sh
$ psecflags $$
100724:	-sh
	E:	none
	I:	aslr
	L:	none
	U:	aslr,forbidnullmap,noexecstack

Example 3 Remove aslr from the inheritable flags of all Bob's processes.


example# psecflags -s current,-aslr -i uid bob

Example 4 Add the aslr flag to the lower set, so that all future child processes must have this flag set.


example# psecflags -s L=current,aslr $$

The following exit values are returned:

0
Success.

non-zero
An error has occurred.

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Volatile

exec(2), attributes(7), contract(5), security-flags(7), zones(7)
June 6, 2016 OmniOS