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secmodel_bsd44.c revision 1.5 
      1 /* $NetBSD: secmodel_bsd44.c,v 1.5 2006/12/31 10:36:44 elad Exp $ */
      2 /*-
      3  * Copyright (c) 2006 Elad Efrat <elad (at) NetBSD.org>
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Elad Efrat.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: secmodel_bsd44.c,v 1.5 2006/12/31 10:36:44 elad Exp $");
     34 
     35 #include <sys/types.h>
     36 #include <sys/param.h>
     37 #include <sys/kauth.h>
     38 
     39 #include <sys/sysctl.h>
     40 
     41 #include <secmodel/secmodel.h>
     42 
     43 #include <secmodel/bsd44/bsd44.h>
     44 #include <secmodel/bsd44/suser.h>
     45 #include <secmodel/bsd44/securelevel.h>
     46 
     47 SYSCTL_SETUP(sysctl_security_bsd44_setup,
     48     "sysctl security bsd44 setup")
     49 {
     50 	const struct sysctlnode *rnode;
     51 	extern int securelevel; /* for compatibility. */
     52 
     53 	sysctl_createv(clog, 0, NULL, &rnode,
     54 		       CTLFLAG_PERMANENT,
     55 		       CTLTYPE_NODE, "security", NULL,
     56 		       NULL, 0, NULL, 0,
     57 		       CTL_SECURITY, CTL_EOL);
     58 
     59 	sysctl_createv(clog, 0, &rnode, NULL,
     60 		       CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
     61 		       CTLTYPE_INT, "curtain", NULL,
     62 		       NULL, 0, &secmodel_bsd44_curtain, 0,
     63 		       CTL_CREATE, CTL_EOL);
     64 
     65 	sysctl_createv(clog, 0, &rnode, &rnode,
     66 		       CTLFLAG_PERMANENT,
     67 		       CTLTYPE_NODE, "models", NULL,
     68 		       NULL, 0, NULL, 0,
     69 		       CTL_CREATE, CTL_EOL);
     70 
     71 	sysctl_createv(clog, 0, &rnode, &rnode,
     72 		       CTLFLAG_PERMANENT,
     73 		       CTLTYPE_NODE, "bsd44",
     74 		       SYSCTL_DESCR("Traditional NetBSD Security model, " \
     75 			   "derived from 4.4BSD"),
     76 		       NULL, 0, NULL, 0,
     77 		       CTL_CREATE, CTL_EOL);
     78 
     79 	sysctl_createv(clog, 0, &rnode, NULL,
     80 		       CTLFLAG_PERMANENT,
     81 		       CTLTYPE_STRING, "name", NULL,
     82 		       NULL, 0, __UNCONST("Traditional NetBSD (4.4BSD)"), 0,
     83 		       CTL_CREATE, CTL_EOL);
     84 
     85 	sysctl_createv(clog, 0, &rnode, NULL,
     86 		       CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
     87 		       CTLTYPE_INT, "securelevel",
     88 		       SYSCTL_DESCR("System security level"),
     89 		       secmodel_bsd44_sysctl_securelevel, 0, &securelevel, 0,
     90 		       CTL_CREATE, CTL_EOL);
     91 
     92 	sysctl_createv(clog, 0, &rnode, NULL,
     93 		       CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
     94 		       CTLTYPE_INT, "curtain",
     95 		       SYSCTL_DESCR("Curtain information about objects to "
     96 				    "users not owning them."),
     97 		       NULL, 0, &secmodel_bsd44_curtain, 0,
     98 		       CTL_CREATE, CTL_EOL);
     99 }
    100 
    101 /*
    102  * Start the traditional NetBSD security model.
    103  */
    104 void
    105 secmodel_start(void)
    106 {
    107 	secmodel_bsd44_init();
    108 
    109 	secmodel_bsd44_suser_start();
    110 	secmodel_bsd44_securelevel_start();
    111 }
    112