The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/mac_policy.h

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    1 /*-
    2  * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
    3  * Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc.
    4  * All rights reserved.
    5  *
    6  * This software was developed by Robert Watson for the TrustedBSD Project.
    7  *
    8  * This software was developed for the FreeBSD Project in part by Network
    9  * Associates Laboratories, the Security Research Division of Network
   10  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
   11  * as part of the DARPA CHATS research program.
   12  *
   13  * Redistribution and use in source and binary forms, with or without
   14  * modification, are permitted provided that the following conditions
   15  * are met:
   16  * 1. Redistributions of source code must retain the above copyright
   17  *    notice, this list of conditions and the following disclaimer.
   18  * 2. Redistributions in binary form must reproduce the above copyright
   19  *    notice, this list of conditions and the following disclaimer in the
   20  *    documentation and/or other materials provided with the distribution.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  * $FreeBSD: src/sys/sys/mac_policy.h,v 1.46 2003/12/06 21:48:03 rwatson Exp $
   35  */
   36 /*
   37  * Kernel interface for MAC policy modules.
   38  */
   39 #ifndef _SYS_MAC_POLICY_H
   40 #define _SYS_MAC_POLICY_H
   41 
   42 /*-
   43  * Pluggable access control policy definition structure.
   44  *
   45  * List of operations that are performed as part of the implementation
   46  * of a MAC policy.  Policy implementors declare operations with a
   47  * mac_policy_ops structure, and using the MAC_POLICY_SET() macro.
   48  * If an entry point is not declared, then then the policy will be ignored
   49  * during evaluation of that event or check.
   50  *
   51  * Operations are sorted first by general class of operation, then
   52  * alphabetically.
   53  */
   54 struct acl;
   55 struct componentname;
   56 struct devfs_dirent;
   57 struct inpcb;
   58 struct ipq;
   59 struct label;
   60 struct mac_policy_conf;
   61 struct mbuf;
   62 struct mount;
   63 struct pipe;
   64 struct sbuf;
   65 struct socket;
   66 struct ucred;
   67 struct uio;
   68 struct vnode;
   69 struct mac_policy_ops {
   70         /*
   71          * Policy module operations.
   72          */
   73         void    (*mpo_destroy)(struct mac_policy_conf *mpc);
   74         void    (*mpo_init)(struct mac_policy_conf *mpc);
   75 
   76         /*
   77          * General policy-directed security system call so that policies
   78          * may implement new services without reserving explicit
   79          * system call numbers.
   80          */
   81         int     (*mpo_syscall)(struct thread *td, int call, void *arg);
   82 
   83         /*
   84          * Label operations.
   85          */
   86         void    (*mpo_init_bpfdesc_label)(struct label *label);
   87         void    (*mpo_init_cred_label)(struct label *label);
   88         void    (*mpo_init_devfsdirent_label)(struct label *label);
   89         void    (*mpo_init_ifnet_label)(struct label *label);
   90         int     (*mpo_init_inpcb_label)(struct label *label, int flag);
   91         int     (*mpo_init_ipq_label)(struct label *label, int flag);
   92         int     (*mpo_init_mbuf_label)(struct label *label, int flag);
   93         void    (*mpo_init_mount_label)(struct label *label);
   94         void    (*mpo_init_mount_fs_label)(struct label *label);
   95         int     (*mpo_init_socket_label)(struct label *label, int flag);
   96         int     (*mpo_init_socket_peer_label)(struct label *label, int flag);
   97         void    (*mpo_init_pipe_label)(struct label *label);
   98         void    (*mpo_init_proc_label)(struct label *label);
   99         void    (*mpo_init_vnode_label)(struct label *label);
  100         void    (*mpo_destroy_bpfdesc_label)(struct label *label);
  101         void    (*mpo_destroy_cred_label)(struct label *label);
  102         void    (*mpo_destroy_devfsdirent_label)(struct label *label);
  103         void    (*mpo_destroy_ifnet_label)(struct label *label);
  104         void    (*mpo_destroy_inpcb_label)(struct label *label);
  105         void    (*mpo_destroy_ipq_label)(struct label *label);
  106         void    (*mpo_destroy_mbuf_label)(struct label *label);
  107         void    (*mpo_destroy_mount_label)(struct label *label);
  108         void    (*mpo_destroy_mount_fs_label)(struct label *label);
  109         void    (*mpo_destroy_socket_label)(struct label *label);
  110         void    (*mpo_destroy_socket_peer_label)(struct label *label);
  111         void    (*mpo_destroy_pipe_label)(struct label *label);
  112         void    (*mpo_destroy_proc_label)(struct label *label);
  113         void    (*mpo_destroy_vnode_label)(struct label *label);
  114         void    (*mpo_copy_cred_label)(struct label *src,
  115                     struct label *dest);
  116         void    (*mpo_copy_mbuf_label)(struct label *src,
  117                     struct label *dest);
  118         void    (*mpo_copy_pipe_label)(struct label *src,
  119                     struct label *dest);
  120         void    (*mpo_copy_socket_label)(struct label *src,
  121                     struct label *dest);
  122         void    (*mpo_copy_vnode_label)(struct label *src,
  123                     struct label *dest);
  124         int     (*mpo_externalize_cred_label)(struct label *label,
  125                     char *element_name, struct sbuf *sb, int *claimed);
  126         int     (*mpo_externalize_ifnet_label)(struct label *label,
  127                     char *element_name, struct sbuf *sb, int *claimed);
  128         int     (*mpo_externalize_pipe_label)(struct label *label,
  129                     char *element_name, struct sbuf *sb, int *claimed);
  130         int     (*mpo_externalize_socket_label)(struct label *label,
  131                     char *element_name, struct sbuf *sb, int *claimed);
  132         int     (*mpo_externalize_socket_peer_label)(struct label *label,
  133                     char *element_name, struct sbuf *sb, int *claimed);
  134         int     (*mpo_externalize_vnode_label)(struct label *label,
  135                     char *element_name, struct sbuf *sb, int *claimed);
  136         int     (*mpo_internalize_cred_label)(struct label *label,
  137                     char *element_name, char *element_data, int *claimed);
  138         int     (*mpo_internalize_ifnet_label)(struct label *label,
  139                     char *element_name, char *element_data, int *claimed);
  140         int     (*mpo_internalize_pipe_label)(struct label *label,
  141                     char *element_name, char *element_data, int *claimed);
  142         int     (*mpo_internalize_socket_label)(struct label *label,
  143                     char *element_name, char *element_data, int *claimed);
  144         int     (*mpo_internalize_vnode_label)(struct label *label,
  145                     char *element_name, char *element_data, int *claimed);
  146 
  147         /*
  148          * Labeling event operations: file system objects, and things that
  149          * look a lot like file system objects.
  150          */
  151         void    (*mpo_associate_vnode_devfs)(struct mount *mp,
  152                     struct label *fslabel, struct devfs_dirent *de,
  153                     struct label *delabel, struct vnode *vp,
  154                     struct label *vlabel);
  155         int     (*mpo_associate_vnode_extattr)(struct mount *mp,
  156                     struct label *fslabel, struct vnode *vp,
  157                     struct label *vlabel);
  158         void    (*mpo_associate_vnode_singlelabel)(struct mount *mp,
  159                     struct label *fslabel, struct vnode *vp,
  160                     struct label *vlabel);
  161         void    (*mpo_create_devfs_device)(struct mount *mp, dev_t dev,
  162                     struct devfs_dirent *de, struct label *label);
  163         void    (*mpo_create_devfs_directory)(struct mount *mp, char *dirname,
  164                     int dirnamelen, struct devfs_dirent *de,
  165                     struct label *label);
  166         void    (*mpo_create_devfs_symlink)(struct ucred *cred,
  167                     struct mount *mp, struct devfs_dirent *dd,
  168                     struct label *ddlabel, struct devfs_dirent *de,
  169                     struct label *delabel);
  170         int     (*mpo_create_vnode_extattr)(struct ucred *cred,
  171                     struct mount *mp, struct label *fslabel,
  172                     struct vnode *dvp, struct label *dlabel,
  173                     struct vnode *vp, struct label *vlabel,
  174                     struct componentname *cnp);
  175         void    (*mpo_create_mount)(struct ucred *cred, struct mount *mp,
  176                     struct label *mntlabel, struct label *fslabel);
  177         void    (*mpo_create_root_mount)(struct ucred *cred, struct mount *mp,
  178                     struct label *mountlabel, struct label *fslabel);
  179         void    (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp,
  180                     struct label *vnodelabel, struct label *label);
  181         int     (*mpo_setlabel_vnode_extattr)(struct ucred *cred,
  182                     struct vnode *vp, struct label *vlabel,
  183                     struct label *intlabel);
  184         void    (*mpo_update_devfsdirent)(struct mount *mp,
  185                     struct devfs_dirent *devfs_dirent,
  186                     struct label *direntlabel, struct vnode *vp,
  187                     struct label *vnodelabel);
  188 
  189         /*
  190          * Labeling event operations: IPC objects.
  191          */
  192         void    (*mpo_create_mbuf_from_socket)(struct socket *so,
  193                     struct label *socketlabel, struct mbuf *m,
  194                     struct label *mbuflabel);
  195         void    (*mpo_create_socket)(struct ucred *cred, struct socket *so,
  196                     struct label *socketlabel);
  197         void    (*mpo_create_socket_from_socket)(struct socket *oldsocket,
  198                     struct label *oldsocketlabel, struct socket *newsocket,
  199                     struct label *newsocketlabel);
  200         void    (*mpo_relabel_socket)(struct ucred *cred, struct socket *so,
  201                     struct label *oldlabel, struct label *newlabel);
  202         void    (*mpo_relabel_pipe)(struct ucred *cred, struct pipe *pipe,
  203                     struct label *oldlabel, struct label *newlabel);
  204         void    (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf,
  205                     struct label *mbuflabel, struct socket *so,
  206                     struct label *socketpeerlabel);
  207         void    (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket,
  208                     struct label *oldsocketlabel, struct socket *newsocket,
  209                     struct label *newsocketpeerlabel);
  210         void    (*mpo_create_pipe)(struct ucred *cred, struct pipe *pipe,
  211                     struct label *pipelabel);
  212 
  213         /*
  214          * Labeling event operations: network objects.
  215          */
  216         void    (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d,
  217                     struct label *bpflabel);
  218         void    (*mpo_create_ifnet)(struct ifnet *ifnet,
  219                     struct label *ifnetlabel);
  220         void    (*mpo_create_inpcb_from_socket)(struct socket *so,
  221                     struct label *solabel, struct inpcb *inp,
  222                     struct label *inplabel);
  223         void    (*mpo_create_ipq)(struct mbuf *fragment,
  224                     struct label *fragmentlabel, struct ipq *ipq,
  225                     struct label *ipqlabel);
  226         void    (*mpo_create_datagram_from_ipq)
  227                     (struct ipq *ipq, struct label *ipqlabel,
  228                     struct mbuf *datagram, struct label *datagramlabel);
  229         void    (*mpo_create_fragment)(struct mbuf *datagram,
  230                     struct label *datagramlabel, struct mbuf *fragment,
  231                     struct label *fragmentlabel);
  232         void    (*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf,
  233                     struct label *oldlabel, struct mbuf *newmbuf,
  234                     struct label *newlabel);
  235         void    (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet,
  236                     struct label *ifnetlabel, struct mbuf *mbuf,
  237                     struct label *mbuflabel);
  238         void    (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d,
  239                     struct label *bpflabel, struct mbuf *mbuf,
  240                     struct label *mbuflabel);
  241         void    (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet,
  242                     struct label *ifnetlabel, struct mbuf *mbuf,
  243                     struct label *mbuflabel);
  244         void    (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf,
  245                     struct label *oldmbuflabel, struct ifnet *ifnet,
  246                     struct label *ifnetlabel, struct mbuf *newmbuf,
  247                     struct label *newmbuflabel);
  248         void    (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf,
  249                     struct label *oldmbuflabel, struct mbuf *newmbuf,
  250                     struct label *newmbuflabel);
  251         int     (*mpo_fragment_match)(struct mbuf *fragment,
  252                     struct label *fragmentlabel, struct ipq *ipq,
  253                     struct label *ipqlabel);
  254         void    (*mpo_reflect_mbuf_icmp)(struct mbuf *m,
  255                     struct label *mlabel);
  256         void    (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel);
  257         void    (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet,
  258                     struct label *ifnetlabel, struct label *newlabel);
  259         void    (*mpo_update_ipq)(struct mbuf *fragment,
  260                     struct label *fragmentlabel, struct ipq *ipq,
  261                     struct label *ipqlabel);
  262         void    (*mpo_inpcb_sosetlabel)(struct socket *so,
  263                     struct label *label, struct inpcb *inp,
  264                     struct label *inplabel);
  265 
  266         /*
  267          * Labeling event operations: processes.
  268          */
  269         void    (*mpo_execve_transition)(struct ucred *old, struct ucred *new,
  270                     struct vnode *vp, struct label *vnodelabel,
  271                     struct label *interpvnodelabel,
  272                     struct image_params *imgp, struct label *execlabel);
  273         int     (*mpo_execve_will_transition)(struct ucred *old,
  274                     struct vnode *vp, struct label *vnodelabel,
  275                     struct label *interpvnodelabel,
  276                     struct image_params *imgp, struct label *execlabel);
  277         void    (*mpo_create_proc0)(struct ucred *cred);
  278         void    (*mpo_create_proc1)(struct ucred *cred);
  279         void    (*mpo_relabel_cred)(struct ucred *cred,
  280                     struct label *newlabel);
  281         void    (*mpo_thread_userret)(struct thread *thread);
  282 
  283         /*
  284          * Access control checks.
  285          */
  286         int     (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d,
  287                     struct label *bpflabel, struct ifnet *ifnet,
  288                     struct label *ifnetlabel);
  289         int     (*mpo_check_cred_relabel)(struct ucred *cred,
  290                     struct label *newlabel);
  291         int     (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2);
  292         int     (*mpo_check_ifnet_relabel)(struct ucred *cred,
  293                     struct ifnet *ifnet, struct label *ifnetlabel,
  294                     struct label *newlabel);
  295         int     (*mpo_check_ifnet_transmit)(struct ifnet *ifnet,
  296                     struct label *ifnetlabel, struct mbuf *m,
  297                     struct label *mbuflabel);
  298         int     (*mpo_check_inpcb_deliver)(struct inpcb *inp,
  299                     struct label *inplabel, struct mbuf *m,
  300                     struct label *mlabel);
  301         int     (*mpo_check_kenv_dump)(struct ucred *cred);
  302         int     (*mpo_check_kenv_get)(struct ucred *cred, char *name);
  303         int     (*mpo_check_kenv_set)(struct ucred *cred, char *name,
  304                     char *value);
  305         int     (*mpo_check_kenv_unset)(struct ucred *cred, char *name);
  306         int     (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp,
  307                     struct label *vlabel);
  308         int     (*mpo_check_kld_stat)(struct ucred *cred);
  309         int     (*mpo_check_kld_unload)(struct ucred *cred);
  310         int     (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp,
  311                     struct label *mntlabel);
  312         int     (*mpo_check_pipe_ioctl)(struct ucred *cred, struct pipe *pipe,
  313                     struct label *pipelabel, unsigned long cmd, void *data); 
  314         int     (*mpo_check_pipe_poll)(struct ucred *cred, struct pipe *pipe,
  315                     struct label *pipelabel);
  316         int     (*mpo_check_pipe_read)(struct ucred *cred, struct pipe *pipe,
  317                     struct label *pipelabel);
  318         int     (*mpo_check_pipe_relabel)(struct ucred *cred,
  319                     struct pipe *pipe, struct label *pipelabel,
  320                     struct label *newlabel);
  321         int     (*mpo_check_pipe_stat)(struct ucred *cred, struct pipe *pipe,
  322                     struct label *pipelabel);
  323         int     (*mpo_check_pipe_write)(struct ucred *cred, struct pipe *pipe,
  324                     struct label *pipelabel);
  325         int     (*mpo_check_proc_debug)(struct ucred *cred,
  326                     struct proc *proc);
  327         int     (*mpo_check_proc_sched)(struct ucred *cred,
  328                     struct proc *proc);
  329         int     (*mpo_check_proc_signal)(struct ucred *cred,
  330                     struct proc *proc, int signum);
  331         int     (*mpo_check_socket_bind)(struct ucred *cred,
  332                     struct socket *so, struct label *socketlabel,
  333                     struct sockaddr *sockaddr);
  334         int     (*mpo_check_socket_connect)(struct ucred *cred,
  335                     struct socket *so, struct label *socketlabel,
  336                     struct sockaddr *sockaddr);
  337         int     (*mpo_check_socket_deliver)(struct socket *so,
  338                     struct label *socketlabel, struct mbuf *m,
  339                     struct label *mbuflabel);
  340         int     (*mpo_check_socket_listen)(struct ucred *cred,
  341                     struct socket *so, struct label *socketlabel);
  342         int     (*mpo_check_socket_receive)(struct ucred *cred,
  343                     struct socket *so, struct label *socketlabel);
  344         int     (*mpo_check_socket_relabel)(struct ucred *cred,
  345                     struct socket *so, struct label *socketlabel,
  346                     struct label *newlabel);
  347         int     (*mpo_check_socket_send)(struct ucred *cred,
  348                     struct socket *so, struct label *socketlabel);
  349         int     (*mpo_check_socket_visible)(struct ucred *cred,
  350                     struct socket *so, struct label *socketlabel);
  351         int     (*mpo_check_sysarch_ioperm)(struct ucred *cred);
  352         int     (*mpo_check_system_acct)(struct ucred *cred,
  353                     struct vnode *vp, struct label *vlabel);
  354         int     (*mpo_check_system_nfsd)(struct ucred *cred);
  355         int     (*mpo_check_system_reboot)(struct ucred *cred, int howto);
  356         int     (*mpo_check_system_settime)(struct ucred *cred);
  357         int     (*mpo_check_system_swapon)(struct ucred *cred,
  358                     struct vnode *vp, struct label *label);
  359         int     (*mpo_check_system_swapoff)(struct ucred *cred,
  360                     struct vnode *vp, struct label *label);
  361         int     (*mpo_check_system_sysctl)(struct ucred *cred, int *name,
  362                     u_int namelen, void *old, size_t *oldlenp, int inkernel,
  363                     void *new, size_t newlen);
  364         int     (*mpo_check_vnode_access)(struct ucred *cred,
  365                     struct vnode *vp, struct label *label, int acc_mode);
  366         int     (*mpo_check_vnode_chdir)(struct ucred *cred,
  367                     struct vnode *dvp, struct label *dlabel);
  368         int     (*mpo_check_vnode_chroot)(struct ucred *cred,
  369                     struct vnode *dvp, struct label *dlabel);
  370         int     (*mpo_check_vnode_create)(struct ucred *cred,
  371                     struct vnode *dvp, struct label *dlabel,
  372                     struct componentname *cnp, struct vattr *vap);
  373         int     (*mpo_check_vnode_delete)(struct ucred *cred,
  374                     struct vnode *dvp, struct label *dlabel,
  375                     struct vnode *vp, struct label *label,
  376                     struct componentname *cnp);
  377         int     (*mpo_check_vnode_deleteacl)(struct ucred *cred,
  378                     struct vnode *vp, struct label *label, acl_type_t type);
  379         int     (*mpo_check_vnode_deleteextattr)(struct ucred *cred,
  380                     struct vnode *vp, struct label *label, int attrnamespace,
  381                     const char *name);
  382         int     (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp,
  383                     struct label *label, struct image_params *imgp,
  384                     struct label *execlabel);
  385         int     (*mpo_check_vnode_getacl)(struct ucred *cred,
  386                     struct vnode *vp, struct label *label, acl_type_t type);
  387         int     (*mpo_check_vnode_getextattr)(struct ucred *cred,
  388                     struct vnode *vp, struct label *label, int attrnamespace,
  389                     const char *name, struct uio *uio);
  390         int     (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp,
  391                     struct label *dlabel, struct vnode *vp,
  392                     struct label *label, struct componentname *cnp);
  393         int     (*mpo_check_vnode_listextattr)(struct ucred *cred,
  394                     struct vnode *vp, struct label *label, int attrnamespace);
  395         int     (*mpo_check_vnode_lookup)(struct ucred *cred,
  396                     struct vnode *dvp, struct label *dlabel,
  397                     struct componentname *cnp);
  398         int     (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp,
  399                     struct label *label, int prot);
  400         void    (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred,
  401                     struct vnode *vp, struct label *label, int *prot);
  402         int     (*mpo_check_vnode_mprotect)(struct ucred *cred,
  403                     struct vnode *vp, struct label *label, int prot);
  404         int     (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp,
  405                     struct label *label, int acc_mode);
  406         int     (*mpo_check_vnode_poll)(struct ucred *active_cred,
  407                     struct ucred *file_cred, struct vnode *vp,
  408                     struct label *label);
  409         int     (*mpo_check_vnode_read)(struct ucred *active_cred,
  410                     struct ucred *file_cred, struct vnode *vp,
  411                     struct label *label);
  412         int     (*mpo_check_vnode_readdir)(struct ucred *cred,
  413                     struct vnode *dvp, struct label *dlabel);
  414         int     (*mpo_check_vnode_readlink)(struct ucred *cred,
  415                     struct vnode *vp, struct label *label);
  416         int     (*mpo_check_vnode_relabel)(struct ucred *cred,
  417                     struct vnode *vp, struct label *vnodelabel,
  418                     struct label *newlabel);
  419         int     (*mpo_check_vnode_rename_from)(struct ucred *cred,
  420                     struct vnode *dvp, struct label *dlabel, struct vnode *vp,
  421                     struct label *label, struct componentname *cnp);
  422         int     (*mpo_check_vnode_rename_to)(struct ucred *cred,
  423                     struct vnode *dvp, struct label *dlabel, struct vnode *vp,
  424                     struct label *label, int samedir,
  425                     struct componentname *cnp);
  426         int     (*mpo_check_vnode_revoke)(struct ucred *cred,
  427                     struct vnode *vp, struct label *label);
  428         int     (*mpo_check_vnode_setacl)(struct ucred *cred,
  429                     struct vnode *vp, struct label *label, acl_type_t type,
  430                     struct acl *acl);
  431         int     (*mpo_check_vnode_setextattr)(struct ucred *cred,
  432                     struct vnode *vp, struct label *label, int attrnamespace,
  433                     const char *name, struct uio *uio);
  434         int     (*mpo_check_vnode_setflags)(struct ucred *cred,
  435                     struct vnode *vp, struct label *label, u_long flags);
  436         int     (*mpo_check_vnode_setmode)(struct ucred *cred,
  437                     struct vnode *vp, struct label *label, mode_t mode);
  438         int     (*mpo_check_vnode_setowner)(struct ucred *cred,
  439                     struct vnode *vp, struct label *label, uid_t uid,
  440                     gid_t gid);
  441         int     (*mpo_check_vnode_setutimes)(struct ucred *cred,
  442                     struct vnode *vp, struct label *label,
  443                     struct timespec atime, struct timespec mtime);
  444         int     (*mpo_check_vnode_stat)(struct ucred *active_cred,
  445                     struct ucred *file_cred, struct vnode *vp,
  446                     struct label *label);
  447         int     (*mpo_check_vnode_write)(struct ucred *active_cred,
  448                     struct ucred *file_cred, struct vnode *vp,
  449                     struct label *label);
  450 };
  451 
  452 struct mac_policy_conf {
  453         char                            *mpc_name;      /* policy name */
  454         char                            *mpc_fullname;  /* policy full name */
  455         struct mac_policy_ops           *mpc_ops;       /* policy operations */
  456         int                              mpc_loadtime_flags;    /* flags */
  457         int                             *mpc_field_off; /* security field */
  458         int                              mpc_runtime_flags; /* flags */
  459         LIST_ENTRY(mac_policy_conf)      mpc_list;      /* global list */
  460 };
  461 
  462 /* Flags for the mpc_loadtime_flags field. */
  463 #define MPC_LOADTIME_FLAG_NOTLATE       0x00000001
  464 #define MPC_LOADTIME_FLAG_UNLOADOK      0x00000002
  465 #define MPC_LOADTIME_FLAG_LABELMBUFS    0x00000004
  466 
  467 /* Flags for the mpc_runtime_flags field. */
  468 #define MPC_RUNTIME_FLAG_REGISTERED     0x00000001
  469 
  470 #define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \
  471         static struct mac_policy_conf mpname##_mac_policy_conf = {      \
  472                 #mpname,                                                \
  473                 mpfullname,                                             \
  474                 mpops,                                                  \
  475                 mpflags,                                                \
  476                 privdata_wanted,                                        \
  477                 0,                                                      \
  478         };                                                              \
  479         static moduledata_t mpname##_mod = {                            \
  480                 #mpname,                                                \
  481                 mac_policy_modevent,                                    \
  482                 &mpname##_mac_policy_conf                               \
  483         };                                                              \
  484         MODULE_DEPEND(mpname, kernel_mac_support, 1, 1, 1);             \
  485         DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY,         \
  486             SI_ORDER_MIDDLE)
  487 
  488 int     mac_policy_modevent(module_t mod, int type, void *data);
  489 
  490 #define LABEL_TO_SLOT(l, s)     (l)->l_perpolicy[s]
  491 
  492 #endif /* !_SYS_MAC_POLICY_H */

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