NAME¶
gradm - Administration program for the grsecurity RBAC system
SYNOPSIS¶
gradm [
-E ] [
-R ] [
-C ] [
-F ] [
-L
<logfile> ] [
-O <filename|stream> ] [
-M
<filename|uid> ] [
-D ] [
-P [rolename] ] [
-a
<rolename> ] [
-n <rolename> ] [
-p
<rolename> ] [
-u ] [
-V ] [
-h ] [
-v ]
DESCRIPTION¶
gradm is the userspace RBAC parsing and authentication program for
grsecurity
grsecurity aims to be a complete security system for Linux 2.4. gradm performs
several tasks for the RBAC system including authenticated via a password to
the kernel and parsing rules to be passed to the kernel.
OPTIONS¶
- All options to gradm are mutually exclusive, except for -L and -O.
- -E
- Enable the RBAC system
- -R
- Reload the RBAC system (only valid while in admin mode)
- -C
- Perform a check of the RBAC policy, running the same analysis against it
that is performed when enabling.
- -F
- Toggle full learning mode. If used only with -L, it enables the RBAC
system in full learning mode. If used with -L and -O, it parses the full
learning logs and generates a complete ruleset.
- -M <filename|uid>
- Remove an execution ban on a given uid or filename that has been put in
place by the RES_CRASH resource restriction of the RBAC system.
- -L <logfile>
- Parses the learning logs. Accepts an argument which specifies the logfile
to scan for the learning logs. If "-" is specified as the
logfile, stdin will be used as the learning log. This option can be used
with -E, -O, or -F.
- -O <filename|stream>
- Specifies output mode. Requires a single argument that can be
"stdout", "stderr", or a regular file. Only used with
-L or -F.
- -D
- Disable the RBAC system
- -P [rolename]
- Without an argument, it sets the password for administering the RBAC
system. With a role name as an argument, it sets the password for that
given special role.
- -a <rolename>
- Authenticate to a special role that requires a password.
- -n <rolename>
- Authenticate to a special role that does not require a password.
- -p <rolename>
- Authenticate through PAM to a special role.
- -u
- Removes yourself from your current special role, reverting back to the
normal role selection. To be used, for instance, for logging out of an
admin role without exiting your shell.
- -V
- Displays verbose policy statistics when enabling the RBAC system or
checking the RBAC policy. Can only be used with -C, -E, or -F -L
<filename>
- -h
- Display help information
- -v
- Print version information and exit
-
REPORTING BUGS¶
Please include as much information as possible(using any available debugging
options) and send bug reports for gradm or the grsecurity RBAC system to
spender@grsecurity.net.
AUTHOR¶
grsecurity and gradm were created and are maintained by Brad Spengler
<spender@grsecurity.net>