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freebsd-nq/sys/security/mac/mac_policy.h
Robert Watson 4795b82c13 Coalesce pipe allocations and frees. Previously, the pipe code 
would allocate two 'struct pipe's from the pipe zone, and malloc a
mutex.

- Create a new "struct pipepair" object holding the two 'struct
  pipe' instances, struct mutex, and struct label reference.  Pipe
  structures now have a back-pointer to the pipe pair, and a
  'pipe_present' flag to indicate whether the half has been
  closed.

- Perform mutex init/destroy in zone init/destroy, avoiding
  reallocating the mutex for each pipe.  Perform most pipe structure
  setup in zone constructor.

- VM memory mappings for pageable buffers are still done outside of
  the UMA zone.

- Change MAC API to speak 'struct pipepair' instead of 'struct pipe',
  update many policies.  MAC labels are also handled outside of the
  UMA zone for now.  Label-only policy modules don't have to be
  recompiled, but if a module is recompiled, its pipe entry points
  will need to be updated.  If a module actually reached into the
  pipe structures (unlikely), that would also need to be modified.

These changes substantially simplify failure handling in the pipe
code as there are many fewer possible failure modes.

On half-close, pipes no longer free the 'struct pipe' for the closed
half until a full-close takes place.  However, VM mapped buffers
are still released on half-close.

Some code refactoring is now possible to clean up some of the back
references, etc; this patch attempts not to change the structure
of most of the pipe implementation, only allocation/free code
paths, so as to avoid introducing bugs (hopefully).

This cuts about 8%-9% off the cost of sequential pipe allocation
and free in system call tests on UP and SMP in my micro-benchmarks.
May or may not make a difference in macro-benchmarks, but doing
less work is good.

Reviewed by:	juli, tjr
Testing help:	dwhite, fenestro, scottl, et al
2004-02-01 05:56:51 +00:00

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/*-
* Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
* Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed by Robert Watson for the TrustedBSD Project.
*
* This software was developed for the FreeBSD Project in part by Network
* Associates Laboratories, the Security Research Division of Network
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
* as part of the DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Kernel interface for MAC policy modules.
*/
#ifndef _SYS_MAC_POLICY_H
#define _SYS_MAC_POLICY_H
/*-
* Pluggable access control policy definition structure.
*
* List of operations that are performed as part of the implementation
* of a MAC policy. Policy implementors declare operations with a
* mac_policy_ops structure, and using the MAC_POLICY_SET() macro.
* If an entry point is not declared, then then the policy will be ignored
* during evaluation of that event or check.
*
* Operations are sorted first by general class of operation, then
* alphabetically.
*/
struct acl;
struct componentname;
struct devfs_dirent;
struct inpcb;
struct ipq;
struct label;
struct mac_policy_conf;
struct mbuf;
struct mount;
struct pipepair;
struct sbuf;
struct socket;
struct ucred;
struct uio;
struct vnode;
struct mac_policy_ops {
/*
* Policy module operations.
*/
void (*mpo_destroy)(struct mac_policy_conf *mpc);
void (*mpo_init)(struct mac_policy_conf *mpc);
/*
* General policy-directed security system call so that policies
* may implement new services without reserving explicit
* system call numbers.
*/
int (*mpo_syscall)(struct thread *td, int call, void *arg);
/*
* Label operations.
*/
void (*mpo_init_bpfdesc_label)(struct label *label);
void (*mpo_init_cred_label)(struct label *label);
void (*mpo_init_devfsdirent_label)(struct label *label);
void (*mpo_init_ifnet_label)(struct label *label);
int (*mpo_init_inpcb_label)(struct label *label, int flag);
int (*mpo_init_ipq_label)(struct label *label, int flag);
int (*mpo_init_mbuf_label)(struct label *label, int flag);
void (*mpo_init_mount_label)(struct label *label);
void (*mpo_init_mount_fs_label)(struct label *label);
int (*mpo_init_socket_label)(struct label *label, int flag);
int (*mpo_init_socket_peer_label)(struct label *label, int flag);
void (*mpo_init_pipe_label)(struct label *label);
void (*mpo_init_proc_label)(struct label *label);
void (*mpo_init_vnode_label)(struct label *label);
void (*mpo_destroy_bpfdesc_label)(struct label *label);
void (*mpo_destroy_cred_label)(struct label *label);
void (*mpo_destroy_devfsdirent_label)(struct label *label);
void (*mpo_destroy_ifnet_label)(struct label *label);
void (*mpo_destroy_inpcb_label)(struct label *label);
void (*mpo_destroy_ipq_label)(struct label *label);
void (*mpo_destroy_mbuf_label)(struct label *label);
void (*mpo_destroy_mount_label)(struct label *label);
void (*mpo_destroy_mount_fs_label)(struct label *label);
void (*mpo_destroy_socket_label)(struct label *label);
void (*mpo_destroy_socket_peer_label)(struct label *label);
void (*mpo_destroy_pipe_label)(struct label *label);
void (*mpo_destroy_proc_label)(struct label *label);
void (*mpo_destroy_vnode_label)(struct label *label);
void (*mpo_copy_cred_label)(struct label *src,
struct label *dest);
void (*mpo_copy_mbuf_label)(struct label *src,
struct label *dest);
void (*mpo_copy_pipe_label)(struct label *src,
struct label *dest);
void (*mpo_copy_socket_label)(struct label *src,
struct label *dest);
void (*mpo_copy_vnode_label)(struct label *src,
struct label *dest);
int (*mpo_externalize_cred_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_ifnet_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_pipe_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_socket_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_socket_peer_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_externalize_vnode_label)(struct label *label,
char *element_name, struct sbuf *sb, int *claimed);
int (*mpo_internalize_cred_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_ifnet_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_pipe_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_socket_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
int (*mpo_internalize_vnode_label)(struct label *label,
char *element_name, char *element_data, int *claimed);
/*
* Labeling event operations: file system objects, and things that
* look a lot like file system objects.
*/
void (*mpo_associate_vnode_devfs)(struct mount *mp,
struct label *fslabel, struct devfs_dirent *de,
struct label *delabel, struct vnode *vp,
struct label *vlabel);
int (*mpo_associate_vnode_extattr)(struct mount *mp,
struct label *fslabel, struct vnode *vp,
struct label *vlabel);
void (*mpo_associate_vnode_singlelabel)(struct mount *mp,
struct label *fslabel, struct vnode *vp,
struct label *vlabel);
void (*mpo_create_devfs_device)(struct mount *mp, dev_t dev,
struct devfs_dirent *de, struct label *label);
void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname,
int dirnamelen, struct devfs_dirent *de,
struct label *label);
void (*mpo_create_devfs_symlink)(struct ucred *cred,
struct mount *mp, struct devfs_dirent *dd,
struct label *ddlabel, struct devfs_dirent *de,
struct label *delabel);
int (*mpo_create_vnode_extattr)(struct ucred *cred,
struct mount *mp, struct label *fslabel,
struct vnode *dvp, struct label *dlabel,
struct vnode *vp, struct label *vlabel,
struct componentname *cnp);
void (*mpo_create_mount)(struct ucred *cred, struct mount *mp,
struct label *mntlabel, struct label *fslabel);
void (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp,
struct label *mountlabel, struct label *fslabel);
void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp,
struct label *vnodelabel, struct label *label);
int (*mpo_setlabel_vnode_extattr)(struct ucred *cred,
struct vnode *vp, struct label *vlabel,
struct label *intlabel);
void (*mpo_update_devfsdirent)(struct mount *mp,
struct devfs_dirent *devfs_dirent,
struct label *direntlabel, struct vnode *vp,
struct label *vnodelabel);
/*
* Labeling event operations: IPC objects.
*/
void (*mpo_create_mbuf_from_socket)(struct socket *so,
struct label *socketlabel, struct mbuf *m,
struct label *mbuflabel);
void (*mpo_create_socket)(struct ucred *cred, struct socket *so,
struct label *socketlabel);
void (*mpo_create_socket_from_socket)(struct socket *oldsocket,
struct label *oldsocketlabel, struct socket *newsocket,
struct label *newsocketlabel);
void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so,
struct label *oldlabel, struct label *newlabel);
void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp,
struct label *oldlabel, struct label *newlabel);
void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf,
struct label *mbuflabel, struct socket *so,
struct label *socketpeerlabel);
void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket,
struct label *oldsocketlabel, struct socket *newsocket,
struct label *newsocketpeerlabel);
void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp,
struct label *pipelabel);
/*
* Labeling event operations: network objects.
*/
void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d,
struct label *bpflabel);
void (*mpo_create_ifnet)(struct ifnet *ifnet,
struct label *ifnetlabel);
void (*mpo_create_inpcb_from_socket)(struct socket *so,
struct label *solabel, struct inpcb *inp,
struct label *inplabel);
void (*mpo_create_ipq)(struct mbuf *fragment,
struct label *fragmentlabel, struct ipq *ipq,
struct label *ipqlabel);
void (*mpo_create_datagram_from_ipq)
(struct ipq *ipq, struct label *ipqlabel,
struct mbuf *datagram, struct label *datagramlabel);
void (*mpo_create_fragment)(struct mbuf *datagram,
struct label *datagramlabel, struct mbuf *fragment,
struct label *fragmentlabel);
void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp,
struct label *inplabel, struct mbuf *m,
struct label *mlabel);
void (*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf,
struct label *oldlabel, struct mbuf *newmbuf,
struct label *newlabel);
void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *mbuf,
struct label *mbuflabel);
void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d,
struct label *bpflabel, struct mbuf *mbuf,
struct label *mbuflabel);
void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *mbuf,
struct label *mbuflabel);
void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf,
struct label *oldmbuflabel, struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *newmbuf,
struct label *newmbuflabel);
void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf,
struct label *oldmbuflabel, struct mbuf *newmbuf,
struct label *newmbuflabel);
int (*mpo_fragment_match)(struct mbuf *fragment,
struct label *fragmentlabel, struct ipq *ipq,
struct label *ipqlabel);
void (*mpo_reflect_mbuf_icmp)(struct mbuf *m,
struct label *mlabel);
void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel);
void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet,
struct label *ifnetlabel, struct label *newlabel);
void (*mpo_update_ipq)(struct mbuf *fragment,
struct label *fragmentlabel, struct ipq *ipq,
struct label *ipqlabel);
void (*mpo_inpcb_sosetlabel)(struct socket *so,
struct label *label, struct inpcb *inp,
struct label *inplabel);
/*
* Labeling event operations: processes.
*/
void (*mpo_execve_transition)(struct ucred *old, struct ucred *new,
struct vnode *vp, struct label *vnodelabel,
struct label *interpvnodelabel,
struct image_params *imgp, struct label *execlabel);
int (*mpo_execve_will_transition)(struct ucred *old,
struct vnode *vp, struct label *vnodelabel,
struct label *interpvnodelabel,
struct image_params *imgp, struct label *execlabel);
void (*mpo_create_proc0)(struct ucred *cred);
void (*mpo_create_proc1)(struct ucred *cred);
void (*mpo_relabel_cred)(struct ucred *cred,
struct label *newlabel);
void (*mpo_thread_userret)(struct thread *thread);
/*
* Access control checks.
*/
int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d,
struct label *bpflabel, struct ifnet *ifnet,
struct label *ifnetlabel);
int (*mpo_check_cred_relabel)(struct ucred *cred,
struct label *newlabel);
int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2);
int (*mpo_check_ifnet_relabel)(struct ucred *cred,
struct ifnet *ifnet, struct label *ifnetlabel,
struct label *newlabel);
int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet,
struct label *ifnetlabel, struct mbuf *m,
struct label *mbuflabel);
int (*mpo_check_inpcb_deliver)(struct inpcb *inp,
struct label *inplabel, struct mbuf *m,
struct label *mlabel);
int (*mpo_check_kenv_dump)(struct ucred *cred);
int (*mpo_check_kenv_get)(struct ucred *cred, char *name);
int (*mpo_check_kenv_set)(struct ucred *cred, char *name,
char *value);
int (*mpo_check_kenv_unset)(struct ucred *cred, char *name);
int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp,
struct label *vlabel);
int (*mpo_check_kld_stat)(struct ucred *cred);
int (*mpo_check_kld_unload)(struct ucred *cred);
int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp,
struct label *mntlabel);
int (*mpo_check_pipe_ioctl)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel,
unsigned long cmd, void *data);
int (*mpo_check_pipe_poll)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_pipe_read)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_pipe_relabel)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel,
struct label *newlabel);
int (*mpo_check_pipe_stat)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_pipe_write)(struct ucred *cred,
struct pipepair *pp, struct label *pipelabel);
int (*mpo_check_proc_debug)(struct ucred *cred,
struct proc *proc);
int (*mpo_check_proc_sched)(struct ucred *cred,
struct proc *proc);
int (*mpo_check_proc_signal)(struct ucred *cred,
struct proc *proc, int signum);
int (*mpo_check_socket_bind)(struct ucred *cred,
struct socket *so, struct label *socketlabel,
struct sockaddr *sockaddr);
int (*mpo_check_socket_connect)(struct ucred *cred,
struct socket *so, struct label *socketlabel,
struct sockaddr *sockaddr);
int (*mpo_check_socket_deliver)(struct socket *so,
struct label *socketlabel, struct mbuf *m,
struct label *mbuflabel);
int (*mpo_check_socket_listen)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_receive)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_relabel)(struct ucred *cred,
struct socket *so, struct label *socketlabel,
struct label *newlabel);
int (*mpo_check_socket_send)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_socket_visible)(struct ucred *cred,
struct socket *so, struct label *socketlabel);
int (*mpo_check_sysarch_ioperm)(struct ucred *cred);
int (*mpo_check_system_acct)(struct ucred *cred,
struct vnode *vp, struct label *vlabel);
int (*mpo_check_system_nfsd)(struct ucred *cred);
int (*mpo_check_system_reboot)(struct ucred *cred, int howto);
int (*mpo_check_system_settime)(struct ucred *cred);
int (*mpo_check_system_swapon)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_system_swapoff)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_system_sysctl)(struct ucred *cred, int *name,
u_int namelen, void *old, size_t *oldlenp, int inkernel,
void *new, size_t newlen);
int (*mpo_check_vnode_access)(struct ucred *cred,
struct vnode *vp, struct label *label, int acc_mode);
int (*mpo_check_vnode_chdir)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel);
int (*mpo_check_vnode_chroot)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel);
int (*mpo_check_vnode_create)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel,
struct componentname *cnp, struct vattr *vap);
int (*mpo_check_vnode_delete)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel,
struct vnode *vp, struct label *label,
struct componentname *cnp);
int (*mpo_check_vnode_deleteacl)(struct ucred *cred,
struct vnode *vp, struct label *label, acl_type_t type);
int (*mpo_check_vnode_deleteextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace,
const char *name);
int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp,
struct label *label, struct image_params *imgp,
struct label *execlabel);
int (*mpo_check_vnode_getacl)(struct ucred *cred,
struct vnode *vp, struct label *label, acl_type_t type);
int (*mpo_check_vnode_getextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace,
const char *name, struct uio *uio);
int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp,
struct label *dlabel, struct vnode *vp,
struct label *label, struct componentname *cnp);
int (*mpo_check_vnode_listextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace);
int (*mpo_check_vnode_lookup)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel,
struct componentname *cnp);
int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp,
struct label *label, int prot);
void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred,
struct vnode *vp, struct label *label, int *prot);
int (*mpo_check_vnode_mprotect)(struct ucred *cred,
struct vnode *vp, struct label *label, int prot);
int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp,
struct label *label, int acc_mode);
int (*mpo_check_vnode_poll)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
int (*mpo_check_vnode_read)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
int (*mpo_check_vnode_readdir)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel);
int (*mpo_check_vnode_readlink)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_vnode_relabel)(struct ucred *cred,
struct vnode *vp, struct label *vnodelabel,
struct label *newlabel);
int (*mpo_check_vnode_rename_from)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel, struct vnode *vp,
struct label *label, struct componentname *cnp);
int (*mpo_check_vnode_rename_to)(struct ucred *cred,
struct vnode *dvp, struct label *dlabel, struct vnode *vp,
struct label *label, int samedir,
struct componentname *cnp);
int (*mpo_check_vnode_revoke)(struct ucred *cred,
struct vnode *vp, struct label *label);
int (*mpo_check_vnode_setacl)(struct ucred *cred,
struct vnode *vp, struct label *label, acl_type_t type,
struct acl *acl);
int (*mpo_check_vnode_setextattr)(struct ucred *cred,
struct vnode *vp, struct label *label, int attrnamespace,
const char *name, struct uio *uio);
int (*mpo_check_vnode_setflags)(struct ucred *cred,
struct vnode *vp, struct label *label, u_long flags);
int (*mpo_check_vnode_setmode)(struct ucred *cred,
struct vnode *vp, struct label *label, mode_t mode);
int (*mpo_check_vnode_setowner)(struct ucred *cred,
struct vnode *vp, struct label *label, uid_t uid,
gid_t gid);
int (*mpo_check_vnode_setutimes)(struct ucred *cred,
struct vnode *vp, struct label *label,
struct timespec atime, struct timespec mtime);
int (*mpo_check_vnode_stat)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
int (*mpo_check_vnode_write)(struct ucred *active_cred,
struct ucred *file_cred, struct vnode *vp,
struct label *label);
};
struct mac_policy_conf {
char *mpc_name; /* policy name */
char *mpc_fullname; /* policy full name */
struct mac_policy_ops *mpc_ops; /* policy operations */
int mpc_loadtime_flags; /* flags */
int *mpc_field_off; /* security field */
int mpc_runtime_flags; /* flags */
LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */
};
/* Flags for the mpc_loadtime_flags field. */
#define MPC_LOADTIME_FLAG_NOTLATE 0x00000001
#define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002
#define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004
/* Flags for the mpc_runtime_flags field. */
#define MPC_RUNTIME_FLAG_REGISTERED 0x00000001
#define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \
static struct mac_policy_conf mpname##_mac_policy_conf = { \
#mpname, \
mpfullname, \
mpops, \
mpflags, \
privdata_wanted, \
0, \
}; \
static moduledata_t mpname##_mod = { \
#mpname, \
mac_policy_modevent, \
&mpname##_mac_policy_conf \
}; \
MODULE_DEPEND(mpname, kernel_mac_support, 1, 1, 1); \
DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \
SI_ORDER_MIDDLE)
int mac_policy_modevent(module_t mod, int type, void *data);
#define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s]
#endif /* !_SYS_MAC_POLICY_H */
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