netlabel-config(8) [centos man page]

netlabel-config(8)					      NetLabel Documentation						netlabel-config(8)

NAME

       netlabel-config - NetLabel configuration utility

SYNOPSIS

       netlabelctl reset| load

DESCRIPTION

       The  NetLabel  configuration utility, netlabel-config, is a script designed to make it easier for system administratiors to create, manage,
       and use complex NetLabel configurations.  The netlabel-config script uses the netlabelctl(8)  tool  and	/etc/netlabel.rules  configuration
       file to load a saved NetLabel configuration into the kernel and reset the kernel's NetLabel configuration to the default state when needed.

       reset  Removes any NetLabel configuration loaded into the kernel and resets the kernel's NetLabel state to the default.

       load   Loads the NetLabel configuration specified by /etc/netlabel.rules into the kernel.

EXIT STATUS

       Returns zero on success, errno values on failure.

NOTES

       The NetLabel subsystem is supported on Linux Kernels version 2.6.19 and later.  The static, or fallback, labels are only supported on Linux
       Kernels version 2.6.25 and later.  The domain mapping address selectors are only supported on Linux Kernels 2.6.28 and later.

       The NetLabel project site, with more information including the source code repository, can be found at http://netlabel.sf.net.	This  pro-
       gram is currently under development, please report any bugs at the project site or directly to the author.

AUTHOR

       Paul Moore <paul@paul-moore.com>

SEE ALSO

       netlabelctl(8)

paul@paul-moore.com						    31 May 2013 						netlabel-config(8)

seccomp_attr_set(3)					     libseccomp Documentation					       seccomp_attr_set(3)

NAME

       seccomp_attr_set, seccomp_attr_get - Manage the seccomp filter attributes

SYNOPSIS

       #include <seccomp.h>

       typedef void * scmp_filter_ctx;
       enum scmp_filter_attr;

       int seccomp_attr_set(scmp_filter_ctx ctx,
			    enum scmp_filter_attr attr, uint32_t value);
       int seccomp_attr_get(scmp_filter_ctx ctx,
			    enum scmp_filter_attr attr, uint32_t *value);

       Link with -lseccomp.

DESCRIPTION

       The  seccomp_attr_set()	function  sets	the  different	seccomp filter attributes while the seccomp_attr_get() function fetches the filter
       attributes.  The seccomp filter attributes are tunable values that affect how the library behaves when generating and loading  the  seccomp
       filter  into  the  kernel.   The  attributes are reset to their default values whenever the filter is initialized or reset via seccomp_fil-
       ter_init(3) or seccomp_filter_reset(3).

       The filter context ctx is the value returned by the call to seccomp_init(3).

       Valid attr values are as follows:

       SCMP_FLTATR_ACT_DEFAULT
	      The default filter action as specified in the call to seccomp_filter_init(3) or seccomp_filter_reset(3).	This  attribute  is  read-
	      only.

       SCMP_FLTATR_ACT_BADARCH
	      The  filter  action  taken  when	the  loaded  filter does not match the architecture of the executing application.  Defaults to the
	      SCMP_ACT_KILL action.

       SCMP_FLTATR_CTL_NNP
	      A flag to specify if the NO_NEW_PRIVS functionality should be enabled before loading the seccomp filter into the kernel.	If set	to
	      off  ( value == 0) then loading the seccomp filter into the kernel will fail if CAP_SYS_ADMIN is not set.  Defaults to on ( value ==
	      1).

RETURN VALUE

       Returns zero on success, negative errno values on failure.

EXAMPLES

       #include <seccomp.h>

       int main(int argc, char *argv[])
       {
	    int rc = -1;
	    scmp_filter_ctx ctx;

	    ctx = seccomp_init(SCMP_ACT_ALLOW);
	    if (ctx == NULL)
		 goto out;

	    /* ... */

	    rc = seccomp_attr_set(ctx, SCMP_FLTATR_ACT_BADARCH, SCMP_ACT_TRAP);
	    if (rc < 0)
		 goto out;

	    /* ... */

       out:
	    seccomp_release(ctx);
	    return -rc;
       }

NOTES

       While the seccomp filter can be generated independent of the kernel, kernel support is required to load and enforce the seccomp filter gen-
       erated by libseccomp.

       The  libseccomp project site, with more information and the source code repository, can be found at http://libseccomp.sf.net.  This library
       is currently under development, please report any bugs at the project site or directly to the author.

AUTHOR

       Paul Moore <paul@paul-moore.com>

SEE ALSO

       seccomp_init(3), seccomp_reset(3), seccomp_load(3)

paul@paul-moore.com						   25 July 2012 					       seccomp_attr_set(3)