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$ 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 |